Add gsk_path_get_previous/next_point

These functions let you iterate over the 'significant'
points of a path.

.gitlab-ci.yml

@@ -30,16 +30,8 @@ variables:
 
 workflow:
   rules:
-    # run merge request pipelines
-    - if: $CI_PIPELINE_SOURCE == "merge_request_event"
-    # do not run branch pipelines if corresponding merge requests exist...
-    # (this avoids duplicate pipelines)
-    - if: $CI_COMMIT_BRANCH && $CI_OPEN_MERGE_REQUESTS
-      when: never
-    # ...but otherwise run branch pipelines
-    - if: $CI_COMMIT_BRANCH
-    # run tag pipelines
     - if: $CI_COMMIT_TAG
+    - if: $CI_COMMIT_BRANCH
 
 default:
   retry:
@@ -205,32 +197,21 @@ msys2-mingw64:
     paths:
       - "${CI_PROJECT_DIR}/_build/gtkdll.tar.gz"
 
-macos-x86_64:
+macos:
+  # Sadly, this fails regularly, and its failure is never enlightening
+  allow_failure: true
   rules:
-    # run merge request pipelines
-    - if: $CI_PIPELINE_SOURCE == "merge_request_event"
-    # do not run in forks
     - if: $CI_PROJECT_NAMESPACE == "GNOME"
   stage: build
   tags:
-    - macosintel
+    - macos
   needs: []
-  variables:
-    MESON_FORCE_BACKTRACKE: 1
-    TMPDIR: /Users/Shared/work/tmp
-    SDKROOT: /opt/sdks/MacOSX10.13.4.sdk
-    CCACHE_DIR: /Users/Shared/work/ccache
-    PIP_CACHE_DIR: /Users/Shared/build/cache
-    PIPENV_CACHE_DIR: $PIP_CACHE_DIR
-    PYTHONPYCACHEPREFIX: $PIP_CACHE_DIR
   before_script:
     - bash .gitlab-ci/show-info-osx.sh
-    - python3 -m venv .venv
-    - ln -s /opt/cmake/CMake.app/Contents/bin/cmake .venv/bin
-    - ln -s /opt/ccache/ccache .venv/bin
-    - source .venv/bin/activate
-    - pip3 install meson==1.2.0
-    - pip3 install ninja==1.11.1
+    - pip3 install --user meson~=1.0
+    - pip3 install --user ninja
+    - export PATH=/Users/gitlabrunner/Library/Python/3.7/bin:$PATH
+    - export MESON_FORCE_BACKTRACE=1
   script:
     - meson setup ${COMMON_MESON_FLAGS}
             -Dx11-backend=false

.gitlab-ci/test-msvc.bat

@@ -6,7 +6,7 @@ call "C:\Program Files (x86)\Microsoft Visual Studio\2017\BuildTools\VC\Auxiliar
 
 :: FIXME: make warnings fatal
 pip3 install --upgrade --user meson~=0.64 || goto :error
-meson setup -Dbackend_max_links=1 -Ddebug=false -Dmedia-gstreamer=disabled _build || goto :error
+meson -Ddebug=false -Dmedia-gstreamer=disabled _build || goto :error
 ninja -C _build || goto :error
 
 goto :EOF

LOG

@@ -0,0 +1,150 @@
+TAP version 13
+# random seed: R02S22611f6aefc1121b0ab2dc5286960449
+# GLib-GIO-DEBUG: _g_io_module_get_default: Found default implementation dconf (DConfSettingsBackend) for ‘gsettings-backend’
+# GLib-GIO-DEBUG: Using cross-namespace EXTERNAL authentication (this will deadlock if server is GDBus < 2.73.3)
+# GLib-GIO-DEBUG: Using cross-namespace EXTERNAL authentication (this will deadlock if server is GDBus < 2.73.3)
+1..1
+# Start of ops tests
+# testcase 0 op 0
+collecting# 
+    Cubic 0: # M 100.000000 100.000000 C 150.000000 100.000000 200.000000 100.000000 250.000000 100.000000 
+    Cubic 1: # M 250.000000 100.000000 C 300.000000 100.000000 350.000000 100.000000 400.000000 100.000000 
+    Line 2: # M 400 100 L 200 300 
+    Line 3: # M 200 300 L 100 100 
+    Cubic 4: # M 200.000000 100.000000 C 250.000000 100.000000 300.000000 100.000000 350.000000 100.000000 
+    Cubic 5: # M 350.000000 100.000000 C 400.000000 100.000000 450.000000 100.000000 500.000000 100.000000 
+    Line 6: # M 500 100 L 300 300 
+    Line 7: # M 300 300 L 200 100 
+splitting# 
+1 intersections between Cubic 0 and Cubic 1# 
+1 intersections between Cubic 0 and Line 3# 
+9 intersections between Cubic 0 and Cubic 4# 
+# split Cubic 0.0 from Cubic 0 at 0.666666: M 100.000000 100.000000 C 133.333298 100.000000 166.666595 100.000000 199.999893 100.000000
+split Cubic 0.1 from Cubic 0 at 0.666666: M 199.999893 100.000000 C 216.666595 100.000000 233.333298 100.000000 250.000000 100.000000split Cubic 0.4 from Cubic 0 at 0.00600814: M 200.300323 100.000000 C 216.866882 100.000000 233.433441 100.000000 250.000000 100.000000split Cubic 0.7 from Cubic 0 at 0.00604445: M 200.600708 100.000000 C 217.067139 100.000000 233.533569 100.000000 250.000000 100.000000# split Cubic 4.9 from Cubic 4 at 0.00533867: M 200.800812 100.000000 C 250.533875 100.000000 300.266937 100.000000 350.000000 100.000000
+1 intersections between Cubic 0.1 and Line 7# 
+1 intersections between Cubic 1 and Line 2# 
+9 intersections between Cubic 1 and Cubic 4.9# 
+split Cubic 1.9 from Cubic 1 at 0.00534248: M 250.801361 100.000000 C 300.534241 100.000000 350.267120 100.000000 400.000000 100.000000# split Cubic 4.9.0 from Cubic 4.9 at 0.329756: M 200.800812 100.000000 C 217.200577 100.000000 233.600342 100.000000 250.000122 100.000000
+# split Cubic 4.9.1 from Cubic 4.9 at 0.329756: M 250.000122 100.000000 C 283.333435 100.000000 316.666718 100.000000 350.000000 100.000000
+# split Cubic 4.9.6 from Cubic 4.9 at 0.00500283: M 250.500412 100.000000 C 283.666931 100.000000 316.833466 100.000000 350.000000 100.000000
+9 intersections between Cubic 1.9 and Cubic 5# 
+# split Cubic 1.9.0 from Cubic 1.9 at 0.664877: M 250.801361 100.000000 C 283.867615 100.000000 316.933868 100.000000 350.000122 100.000000
+split Cubic 1.9.1 from Cubic 1.9 at 0.664877: M 350.000122 100.000000 C 366.666748 100.000000 383.333374 100.000000 400.000000 100.000000split Cubic 1.9.4 from Cubic 1.9 at 0.00601021: M 350.300598 100.000000 C 366.867065 100.000000 383.433533 100.000000 400.000000 100.000000split Cubic 1.9.7 from Cubic 1.9 at 0.00604655: M 350.601074 100.000000 C 367.067383 100.000000 383.533691 100.000000 400.000000 100.000000# split Cubic 5.9 from Cubic 5 at 0.00534248: M 350.801361 100.000000 C 400.534241 100.000000 450.267120 100.000000 500.000000 100.000000
+1 intersections between Line 2 and Line 3# 
+1 intersections between Line 2 and Line 7# 
+# split Line 2.0 from Line 2 at 0.666667: M 400 100 L 266.667 233.333
+split Line 2.1 from Line 2 at 0.666667: M 266.667 233.333 L 200 300# split Line 7.0 from Line 7 at 0.333333: M 300 300 L 266.667 233.333
+# split Line 7.1 from Line 7 at 0.333333: M 266.667 233.333 L 200 100
+1 intersections between Cubic 4 and Cubic 4.9.0# 
+1 intersections between Cubic 4 and Line 7.1# 
+1 intersections between Cubic 4.9.0 and Cubic 4.9.1# 
+1 intersections between Cubic 4.9.1 and Cubic 4.9.6# 
+1 intersections between Cubic 4.9.6 and Cubic 5# 
+1 intersections between Cubic 5 and Cubic 5.9# 
+1 intersections between Cubic 5.9 and Line 6# 
+1 intersections between Line 6 and Line 7.0# 
+    Cubic 0.0: # M 100.000000 100.000000 C 133.333298 100.000000 166.666595 100.000000 199.999893 100.000000 
+    Cubic 0.1: # M 199.999893 100.000000 C 200.100037 100.000000 200.200180 100.000000 200.300323 100.000000 
+    Cubic 0.4: # M 200.300323 100.000000 C 200.400452 100.000000 200.500580 100.000000 200.600708 100.000000 
+    Cubic 0.7: # M 200.600708 100.000000 C 217.067139 100.000000 233.533569 100.000000 250.000000 100.000000 
+    Cubic 1: # M 250.000000 100.000000 C 250.267120 100.000000 250.534241 100.000000 250.801361 100.000000 
+    Cubic 1.9.0: # M 250.801361 100.000000 C 283.867615 100.000000 316.933868 100.000000 350.000122 100.000000 
+    Cubic 1.9.1: # M 350.000122 100.000000 C 350.100281 100.000000 350.200439 100.000000 350.300598 100.000000 
+    Cubic 1.9.4: # M 350.300598 100.000000 C 350.400757 100.000000 350.500916 100.000000 350.601074 100.000000 
+    Cubic 1.9.7: # M 350.601074 100.000000 C 367.067383 100.000000 383.533691 100.000000 400.000000 100.000000 
+    Line 2.0: # M 400 100 L 266.667 233.333 
+    Line 2.1: # M 266.667 233.333 L 200 300 
+    Line 3: # M 200 300 L 100 100 
+    Cubic 4: # M 200.000000 100.000000 C 200.266937 100.000000 200.533875 100.000000 200.800812 100.000000 
+    Cubic 4.9.0: # M 200.800812 100.000000 C 217.200577 100.000000 233.600342 100.000000 250.000122 100.000000 
+    Cubic 4.9.1: # M 250.000122 100.000000 C 250.166885 100.000000 250.333649 100.000000 250.500412 100.000000 
+    Cubic 4.9.6: # M 250.500412 100.000000 C 283.666931 100.000000 316.833466 100.000000 350.000000 100.000000 
+    Cubic 5: # M 350.000000 100.000000 C 350.267120 100.000000 350.534241 100.000000 350.801361 100.000000 
+    Cubic 5.9: # M 350.801361 100.000000 C 400.534241 100.000000 450.267120 100.000000 500.000000 100.000000 
+    Line 6: # M 500 100 L 300 300 
+    Line 7.0: # M 300 300 L 266.667 233.333 
+    Line 7.1: # M 266.667 233.333 L 200 100 
+classifying# 
+ 01 Cubic 0.0: # M 100.000000 100.000000 C 133.333298 100.000000 166.666595 100.000000 199.999893 100.000000 
+[11 Cubic 0.7: # M 200.600708 100.000000 C 217.067139 100.000000 233.533569 100.000000 250.000000 100.000000 ]
+[11 Cubic 1.9.0: # M 250.801361 100.000000 C 283.867615 100.000000 316.933868 100.000000 350.000122 100.000000 ]
+[11 Cubic 1.9.7: # M 350.601074 100.000000 C 367.067383 100.000000 383.533691 100.000000 400.000000 100.000000 ]
+[11 Line 2.0: # M 400 100 L 266.667 233.333 ]
+ 01 Line 2.1: # M 266.667 233.333 L 200 300 
+ 01 Line 3: # M 200 300 L 100 100 
+[11 Cubic 4: # M 200.000000 100.000000 C 200.266937 100.000000 200.533875 100.000000 200.800812 100.000000 ]
+[11 Cubic 4.9.0: # M 200.800812 100.000000 C 217.200577 100.000000 233.600342 100.000000 250.000122 100.000000 ]
+[11 Cubic 4.9.6: # M 250.500412 100.000000 C 283.666931 100.000000 316.833466 100.000000 350.000000 100.000000 ]
+[11 Cubic 5: # M 350.000000 100.000000 C 350.267120 100.000000 350.534241 100.000000 350.801361 100.000000 ]
+ 01 Cubic 5.9: # M 350.801361 100.000000 C 400.534241 100.000000 450.267120 100.000000 500.000000 100.000000 
+ 01 Line 6: # M 500 100 L 300 300 
+ 01 Line 7.0: # M 300 300 L 266.667 233.333 
+[11 Line 7.1: # M 266.667 233.333 L 200 100 ]
+fixups# 
+# found 3 bad nodes
+# split Cubic 0/Cubic 4 BAD 200.600723 100.000000
+# 	[11 Line 7.1 ] 116.565
+# 	[11 Cubic 0.7 ] 180
+# 	[11 Cubic 4 ] 180
+# 	[11 Cubic 4 ] 180
+# 	[11 Cubic 4.9.0 ] 180
+# 	>01 Cubic 0.0  360
+# split Cubic 1/Cubic 4.9 BAD 250.801376 100.000000
+# 	[11 Cubic 1.9.0 ] 180
+# 	[11 Cubic 4.9.6 ] 180
+# 	[11 Cubic 0.7 ] 360
+# 	[11 Cubic 4.9.0 ] 360
+# split Cubic 1.9/Cubic 5 BAD 350.601105 100.000000
+# 	[11 Cubic 1.9.7 ] 180
+# 	[11 Cubic 5 ] 180
+# 	[11 Cubic 5 ] 180
+# 	<01 Cubic 5.9  180
+# 	[11 Cubic 1.9.0 ] 360
+# 	[11 Cubic 4.9.6 ] 360
+reassembling# 
+start new contour Cubic 0.0# 
+# Cubic 0.0 ends at: 
+# start 0 100.000000 100.000000
+# 	>01 Line 3  116.565
+# 	(10 Cubic 0.0 ) 180
+picking cw# 
+append Line 3# 
+# Line 3 ends at: 
+# end 2 200.000000 300.000000
+# 	>01 Line 2.1  225
+# 	(10 Line 3 ) 296.565
+picking cw# 
+append Line 2.1# 
+# Line 2.1 ends at: 
+# split Line 2/Line 7 266.666656 233.333344
+# 	(10 Line 2.1 ) 45
+# 	>01 Line 7.0  116.565
+# 	[11 Line 2.0 ] 225
+# 	[11 Line 7.1 ] 296.565
+picking cw# 
+append Line 7.0# 
+# Line 7.0 ends at: 
+# end 6 300.000000 300.000000
+# 	>01 Line 6  225
+# 	(10 Line 7.0 ) 296.565
+picking cw# 
+append Line 6# 
+# Line 6 ends at: 
+# end 5 500.000000 100.000000
+# 	(10 Line 6 ) 45
+# 	>01 Cubic 5.9  360
+picking cw# 
+append Cubic 5.9# 
+# Cubic 5.9 ends at: 
+# split Cubic 1.9/Cubic 5 BAD 350.601105 100.000000
+# 	[11 Cubic 1.9.7 ] 180
+# 	[11 Cubic 5 ] 180
+# 	[11 Cubic 5 ] 180
+# 	(10 Cubic 5.9 ) 180
+# 	[11 Cubic 1.9.0 ] 360
+# 	[11 Cubic 4.9.6 ] 360
+picking cw# 
+**
+ERROR:../testsuite/gsk/path-ops.c:359:test_ops_simple: assertion failed (s == tests[i].out): ("M 354.60110473632812 100 A 4 4 0 0 0 346.60110473632812 100 A 4 4 0 0 0 354.60110473632812 100 z M 252.80137634277344 100 A 2 2 0 0 0 248.80137634277344 100 A 2 2 0 0 0 252.80137634277344 100 z M 204.60072326660156 100 A 4 4 0 0 0 196.60072326660156 100 A 4 4 0 0 0 204.60072326660156 100 z" == "M 100 100 z")
+not ok /ops/simple - ERROR:../testsuite/gsk/path-ops.c:359:test_ops_simple: assertion failed (s == tests[i].out): ("M 354.60110473632812 100 A 4 4 0 0 0 346.60110473632812 100 A 4 4 0 0 0 354.60110473632812 100 z M 252.80137634277344 100 A 2 2 0 0 0 248.80137634277344 100 A 2 2 0 0 0 252.80137634277344 100 z M 204.60072326660156 100 A 4 4 0 0 0 196.60072326660156 100 A 4 4 0 0 0 204.60072326660156 100 z" == "M 100 100 z")
+Bail out!

demos/gtk-demo/demo.gresource.xml

@@ -336,8 +336,6 @@
     <file>panes.c</file>
     <file>password_entry.c</file>
     <file>path_fill.c</file>
-    <file>path_spinner.c</file>
-    <file>path_walk.c</file>
     <file>path_text.c</file>
     <file>peg_solitaire.c</file>
     <file>pickers.c</file>
@@ -424,10 +422,6 @@
   <gresource prefix="/fontrendering">
     <file>fontrendering.ui</file>
   </gresource>
-  <gresource prefix="/path_walk">
-    <file>path_walk.ui</file>
-    <file compressed="true">path_world.txt</file>
-  </gresource>
   <gresource prefix="/path_text">
     <file>path_text.ui</file>
   </gresource>

demos/gtk-demo/gtkgears.c

@@ -840,24 +840,24 @@ gtk_gears_unrealize (GtkWidget *widget)
   GtkGearsPrivate *priv = gtk_gears_get_instance_private ((GtkGears *) widget);
 
   gtk_gl_area_make_current (glarea);
-  if (gtk_gl_area_get_error (glarea) == NULL)
-    {
-      /* Release the resources associated with OpenGL */
-      if (priv->gear_vbo[0] != 0)
-        glDeleteBuffers (1, &(priv->gear_vbo[0]));
+  if (gtk_gl_area_get_error (glarea) != NULL)
+    return;
 
-      if (priv->gear_vbo[1] != 0)
-        glDeleteBuffers (1, &(priv->gear_vbo[1]));
+  /* Release the resources associated with OpenGL */
+  if (priv->gear_vbo[0] != 0)
+    glDeleteBuffers (1, &(priv->gear_vbo[0]));
 
-      if (priv->gear_vbo[2] != 0)
-        glDeleteBuffers (1, &(priv->gear_vbo[2]));
+  if (priv->gear_vbo[1] != 0)
+    glDeleteBuffers (1, &(priv->gear_vbo[1]));
 
-      if (priv->vao != 0)
-        glDeleteVertexArrays (1, &priv->vao);
+  if (priv->gear_vbo[2] != 0)
+    glDeleteBuffers (1, &(priv->gear_vbo[2]));
 
-      if (priv->program != 0)
-        glDeleteProgram (priv->program);
-    }
+  if (priv->vao != 0)
+    glDeleteVertexArrays (1, &priv->vao);
+
+  if (priv->program != 0)
+    glDeleteProgram (priv->program);
 
   priv->ModelViewProjectionMatrix_location = 0;
   priv->NormalMatrix_location = 0;

demos/gtk-demo/meson.build

@@ -73,8 +73,6 @@ demos = files([
   'panes.c',
   'password_entry.c',
   'path_fill.c',
-  'path_spinner.c',
-  'path_walk.c',
   'path_text.c',
   'peg_solitaire.c',
   'pickers.c',

demos/gtk-demo/path_fill.c

@@ -177,7 +177,7 @@ do_path_fill (GtkWidget *do_widget)
 
       window = gtk_window_new ();
       gtk_window_set_resizable (GTK_WINDOW (window), TRUE);
-      gtk_window_set_title (GTK_WINDOW (window), "Fill and Stroke");
+      gtk_window_set_title (GTK_WINDOW (window), "Path Fill");
       g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
 
       paintable = gtk_logo_paintable_new ();

demos/gtk-demo/path_spinner.c

@@ -1,331 +0,0 @@
-/* Path/Spinner
- *
- * This demo shows how to use GskPath to draw a simple animation
- * that could be used as a spinner.
- */
-
-#include <glib/gi18n.h>
-#include <gtk/gtk.h>
-
-#include "paintable.h"
-
-#define GTK_TYPE_SPINNER_PAINTABLE (gtk_spinner_paintable_get_type ())
-G_DECLARE_FINAL_TYPE (GtkSpinnerPaintable, gtk_spinner_paintable, GTK, SPINNER_PAINTABLE, GObject)
-
-struct _GtkSpinnerPaintable
-{
-  GObject parent_instance;
-
-  gint64 start_time;
-
-  int width;
-  double angle;
-  double completion;
-
-  GskPath *circle;
-  GskPath *path;
-  GskStroke *stroke;
-  GdkRGBA color;
-  GdkRGBA circle_color;
-#ifdef SHOW_CONTROLS
-  GskPath *controls;
-  GdkRGBA control_color;
-#endif
-};
-
-struct _GtkSpinnerPaintableClass
-{
-  GObjectClass parent_class;
-};
-
-static int
-gtk_spinner_paintable_get_intrinsic_width (GdkPaintable *paintable)
-{
-  GtkSpinnerPaintable *self = GTK_SPINNER_PAINTABLE (paintable);
-
-  return self->width;
-}
-
-static int
-gtk_spinner_paintable_get_intrinsic_height (GdkPaintable *paintable)
-{
-  GtkSpinnerPaintable *self = GTK_SPINNER_PAINTABLE (paintable);
-
-  return self->width;
-}
-
-static void
-gtk_spinner_paintable_snapshot (GdkPaintable *paintable,
-                             GdkSnapshot  *snapshot,
-                             double        width,
-                             double        height)
-{
-  GtkSpinnerPaintable *self = GTK_SPINNER_PAINTABLE (paintable);
-
-  gtk_snapshot_append_stroke (snapshot, self->circle, self->stroke, &self->circle_color);
-  gtk_snapshot_append_stroke (snapshot, self->path, self->stroke, &self->color);
-#ifdef SHOW_CONTROLS
-  GskStroke *stroke = gsk_stroke_new (1);
-  gtk_snapshot_append_stroke (snapshot, self->controls, stroke, &self->control_color);
-  gsk_stroke_free (stroke);
-#endif
-}
-
-static GdkPaintableFlags
-gtk_spinner_paintable_get_flags (GdkPaintable *paintable)
-{
-  return GDK_PAINTABLE_STATIC_SIZE;
-}
-
-static void
-gtk_spinner_paintable_paintable_init (GdkPaintableInterface *iface)
-{
-  iface->get_intrinsic_width = gtk_spinner_paintable_get_intrinsic_width;
-  iface->get_intrinsic_height = gtk_spinner_paintable_get_intrinsic_height;
-  iface->snapshot = gtk_spinner_paintable_snapshot;
-  iface->get_flags = gtk_spinner_paintable_get_flags;
-}
-
-/* When defining the GType, we need to implement the GdkPaintable interface */
-G_DEFINE_TYPE_WITH_CODE (GtkSpinnerPaintable, gtk_spinner_paintable, G_TYPE_OBJECT,
-                         G_IMPLEMENT_INTERFACE (GDK_TYPE_PAINTABLE,
-                                                gtk_spinner_paintable_paintable_init))
-
-static void
-gtk_spinner_paintable_dispose (GObject *object)
-{
-  GtkSpinnerPaintable *self = GTK_SPINNER_PAINTABLE (object);
-
-  gsk_path_unref (self->circle);
-  gsk_path_unref (self->path);
-#ifdef SHOW_CONTROLS
-  gsk_path_unref (self->controls);
-#endif
-
-  gsk_stroke_free (self->stroke);
-
-  G_OBJECT_CLASS (gtk_spinner_paintable_parent_class)->dispose (object);
-}
-
-static void
-gtk_spinner_paintable_class_init (GtkSpinnerPaintableClass *klass)
-{
-  GObjectClass *object_class = G_OBJECT_CLASS (klass);
-
-  object_class->dispose = gtk_spinner_paintable_dispose;
-}
-
-static void
-gtk_spinner_paintable_init (GtkSpinnerPaintable *self)
-{
-}
-
-static GdkPaintable *
-gtk_spinner_paintable_new (void)
-{
-  GtkSpinnerPaintable *self;
-  GskPathBuilder *builder;
-
-  self = g_object_new (GTK_TYPE_SPINNER_PAINTABLE, NULL);
-
-  builder = gsk_path_builder_new ();
-  gsk_path_builder_add_circle (builder, &GRAPHENE_POINT_INIT (50, 50), 40);
-  self->circle = gsk_path_builder_free_to_path (builder);
-
-  self->width = 100;
-  self->angle = 0;
-  self->completion = 1;
-  gdk_rgba_parse (&self->color, "green");
-  gdk_rgba_parse (&self->circle_color, "lightgray");
-#ifdef SHOW_CONTROLS
-  gdk_rgba_parse (&self->control_color, "black");
-#endif
-  self->stroke = gsk_stroke_new (5);
-
-  return GDK_PAINTABLE (self);
-}
-
-#ifdef SHOW_CONTROLS
-static gboolean
-add_controls (GskPathOperation        op,
-              const graphene_point_t *pts,
-              gsize                   n_pts,
-              gpointer                data)
-{
-  GskPathBuilder *builder = data;
-
-  switch (op)
-    {
-    case GSK_PATH_MOVE:
-      gsk_path_builder_move_to (builder, pts[0].x, pts[0].y);
-      break;
-
-    case GSK_PATH_CLOSE:
-    case GSK_PATH_LINE:
-      gsk_path_builder_line_to (builder, pts[1].x, pts[1].y);
-      break;
-
-    case GSK_PATH_QUAD:
-    case GSK_PATH_ARC:
-      gsk_path_builder_line_to (builder, pts[1].x, pts[1].y);
-      gsk_path_builder_line_to (builder, pts[2].x, pts[2].y);
-      break;
-
-    case GSK_PATH_CUBIC:
-      gsk_path_builder_line_to (builder, pts[1].x, pts[1].y);
-      gsk_path_builder_line_to (builder, pts[2].x, pts[2].y);
-      gsk_path_builder_line_to (builder, pts[3].x, pts[3].y);
-      break;
-
-    default:
-      g_assert_not_reached ();
-    }
-
-  return TRUE;
-}
-#endif
-
-static void
-update_path (GtkSpinnerPaintable *self)
-{
-  GskPathBuilder *builder;
-  GskPathPoint start, end;
-  GskTransform *t;
-  graphene_point_t p, p0, p1;
-  float start_angle, end_angle;
-
-  p = GRAPHENE_POINT_INIT (40, 0);
-  start_angle = self->angle;
-  end_angle = fmod (self->angle + 360 * self->completion / 100, 360);
-
-  t = gsk_transform_translate (
-        gsk_transform_rotate (
-          gsk_transform_translate (NULL, &GRAPHENE_POINT_INIT (50, 50)),
-          start_angle),
-        &GRAPHENE_POINT_INIT (-50, -50));
-  gsk_transform_transform_point (t, &p, &p0);
-
-  t = gsk_transform_translate (
-        gsk_transform_rotate (
-          gsk_transform_translate (NULL, &GRAPHENE_POINT_INIT (50, 50)),
-          end_angle),
-        &GRAPHENE_POINT_INIT (-50, -50));
-  gsk_transform_transform_point (t, &p, &p1);
-
-  g_clear_pointer (&self->path, gsk_path_unref);
-
-  gsk_path_get_closest_point (self->circle, &p0, INFINITY, &start);
-  gsk_path_get_closest_point (self->circle, &p1, INFINITY, &end);
-
-  builder = gsk_path_builder_new ();
-  gsk_path_builder_add_segment (builder, self->circle, &start, &end);
-  self->path = gsk_path_builder_free_to_path (builder);
-
-#ifdef SHOW_CONTROLS
-  g_clear_pointer (&self->controls, gsk_path_unref);
-  builder = gsk_path_builder_new ();
-  gsk_path_foreach (self->path, -1, add_controls, builder);
-  self->controls = gsk_path_builder_free_to_path (builder);
-#endif
-
-  gdk_paintable_invalidate_contents (GDK_PAINTABLE (self));
-}
-
-static void
-gtk_spinner_paintable_set_completion (GtkSpinnerPaintable *self,
-                                   float             completion)
-{
-  self->completion = CLAMP (completion, 0, 100);
-  update_path (self);
-}
-
-static float
-gtk_spinner_paintable_get_completion (GtkSpinnerPaintable *self)
-{
-  return self->completion;
-}
-
-static void
-gtk_spinner_paintable_set_frame_time (GtkSpinnerPaintable *self,
-                                      gint64            time)
-{
-  double delta;
-
-  if (self->start_time == 0)
-    self->start_time = time;
-
-  delta = (time - self->start_time) / (double) G_TIME_SPAN_SECOND;
-  self->angle = fmod (60 * delta, 360);
-  update_path (self);
-}
-
-static gboolean
-tick_cb (GtkWidget *widget,
-         GdkFrameClock *clock,
-         gpointer data)
-{
-  GtkSpinnerPaintable *self = data;
-
-  gtk_spinner_paintable_set_frame_time (self, gdk_frame_clock_get_frame_time (clock));
-  return G_SOURCE_CONTINUE;
-}
-
-static gboolean
-progress_timeout (gpointer data)
-{
-  GtkSpinnerPaintable *self = data;
-  static float progress_delta = 0.5;
-  float progress;
-
-  progress = gtk_spinner_paintable_get_completion (self);
-  if (progress >= 100 || progress <= 0)
-    progress_delta = -progress_delta;
-
-  gtk_spinner_paintable_set_completion (self, progress + progress_delta);
-
-  return G_SOURCE_CONTINUE;
-}
-
-static void
-unset_timeout (gpointer data)
-{
-  g_source_remove (GPOINTER_TO_UINT (data));
-}
-
-GtkWidget *
-do_path_spinner (GtkWidget *do_widget)
-{
-  static GtkWidget *window = NULL;
-
-  if (!window)
-    {
-      GtkWidget *picture;
-      GdkPaintable *paintable;
-      guint timeout_id;
-
-      window = gtk_window_new ();
-      gtk_window_set_resizable (GTK_WINDOW (window), TRUE);
-      gtk_window_set_title (GTK_WINDOW (window), "Spinner");
-      g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
-
-      paintable = gtk_spinner_paintable_new ();
-      picture = gtk_picture_new_for_paintable (paintable);
-      gtk_picture_set_content_fit (GTK_PICTURE (picture), GTK_CONTENT_FIT_CONTAIN);
-      gtk_picture_set_can_shrink (GTK_PICTURE (picture), FALSE);
-      g_object_unref (paintable);
-
-      gtk_widget_add_tick_callback (picture, tick_cb, paintable, NULL);
-      timeout_id = g_timeout_add (100, progress_timeout, paintable);
-
-      g_object_set_data_full (G_OBJECT (picture), "timeout", GUINT_TO_POINTER (timeout_id), unset_timeout);
-
-      gtk_window_set_child (GTK_WINDOW (window), picture);
-    }
-
-  if (!gtk_widget_get_visible (window))
-    gtk_window_present (GTK_WINDOW (window));
-  else
-    gtk_window_destroy (GTK_WINDOW (window));
-
-  return window;
-}

demos/gtk-demo/path_text.c

@@ -1,9 +1,6 @@
 /* Path/Text
  *
- * This demo shows how to use GskPath to transform a path along another path.
- *
- * It also demonstrates that paths can be filled with more interesting
- * content than just plain colors.
+ * This demo shows how to use GskPath to animate a path along another path.
  */
 
 #include <glib/gi18n.h>
@@ -31,8 +28,10 @@ struct _GtkPathWidget
   graphene_point_t points[4];
 
   guint active_point;
+  float line_closest;
 
   GskPath *line_path;
+  GskPathMeasure *line_measure;
   GskPath *text_path;
 
   GdkPaintable *background;
@@ -95,8 +94,8 @@ gtk_path_transform_point (GskPathMeasure         *measure,
     {
       GskPath *path = gsk_path_measure_get_path (measure);
 
-      gsk_path_point_get_position (&point, path, res);
-      gsk_path_point_get_tangent (&point, path, GSK_PATH_TO_END, &tangent);
+      gsk_path_point_get_position (path, &point, res);
+      gsk_path_point_get_tangent (path, &point, GSK_PATH_END, &tangent);
 
       res->x -= (pt->y + offset->y) * scale * graphene_vec2_get_y (&tangent);
       res->y += (pt->y + offset->y) * scale * graphene_vec2_get_x (&tangent);
@@ -104,19 +103,19 @@ gtk_path_transform_point (GskPathMeasure         *measure,
 }
 
 static gboolean
-gtk_path_transform_op (const graphene_point_t *start,
-                       const graphene_point_t *end,
-                       const GskPathControl   *control,
+gtk_path_transform_op (GskPathOperation        op,
+                       const graphene_point_t *pts,
+                       gsize                   n_pts,
                        gpointer                data)
 {
   GtkPathTransform *transform = data;
 
-  switch (control->op)
+  switch (op)
   {
     case GSK_PATH_MOVE:
       {
         graphene_point_t res;
-        gtk_path_transform_point (transform->measure, end, &transform->offset, transform->scale, &res);
+        gtk_path_transform_point (transform->measure, &pts[0], &transform->offset, transform->scale, &res);
         gsk_path_builder_move_to (transform->builder, res.x, res.y);
       }
       break;
@@ -124,7 +123,7 @@ gtk_path_transform_op (const graphene_point_t *start,
     case GSK_PATH_LINE:
       {
         graphene_point_t res;
-        gtk_path_transform_point (transform->measure, end, &transform->offset, transform->scale, &res);
+        gtk_path_transform_point (transform->measure, &pts[1], &transform->offset, transform->scale, &res);
         gsk_path_builder_line_to (transform->builder, res.x, res.y);
       }
       break;
@@ -132,8 +131,8 @@ gtk_path_transform_op (const graphene_point_t *start,
     case GSK_PATH_QUAD:
       {
         graphene_point_t res[2];
-        gtk_path_transform_point (transform->measure, &control->quad.control, &transform->offset, transform->scale, &res[0]);
-        gtk_path_transform_point (transform->measure, end, &transform->offset, transform->scale, &res[1]);
+        gtk_path_transform_point (transform->measure, &pts[1], &transform->offset, transform->scale, &res[0]);
+        gtk_path_transform_point (transform->measure, &pts[2], &transform->offset, transform->scale, &res[1]);
         gsk_path_builder_quad_to (transform->builder, res[0].x, res[0].y, res[1].x, res[1].y);
       }
       break;
@@ -141,22 +140,13 @@ gtk_path_transform_op (const graphene_point_t *start,
     case GSK_PATH_CUBIC:
       {
         graphene_point_t res[3];
-        gtk_path_transform_point (transform->measure, &control->cubic.control1, &transform->offset, transform->scale, &res[0]);
-        gtk_path_transform_point (transform->measure, &control->cubic.control2, &transform->offset, transform->scale, &res[1]);
-        gtk_path_transform_point (transform->measure, end, &transform->offset, transform->scale, &res[2]);
+        gtk_path_transform_point (transform->measure, &pts[1], &transform->offset, transform->scale, &res[0]);
+        gtk_path_transform_point (transform->measure, &pts[2], &transform->offset, transform->scale, &res[1]);
+        gtk_path_transform_point (transform->measure, &pts[3], &transform->offset, transform->scale, &res[2]);
         gsk_path_builder_cubic_to (transform->builder, res[0].x, res[0].y, res[1].x, res[1].y, res[2].x, res[2].y);
       }
       break;
 
-    case GSK_PATH_CONIC:
-      {
-        graphene_point_t res[2];
-        gtk_path_transform_point (transform->measure, &control->conic.control, &transform->offset, transform->scale, &res[0]);
-        gtk_path_transform_point (transform->measure, end, &transform->offset, transform->scale, &res[1]);
-        gsk_path_builder_conic_to (transform->builder, res[0].x, res[0].y, res[1].x, res[1].y, control->conic.weight);
-      }
-      break;
-
     case GSK_PATH_CLOSE:
       gsk_path_builder_close (transform->builder);
       break;
@@ -170,11 +160,10 @@ gtk_path_transform_op (const graphene_point_t *start,
 }
 
 static GskPath *
-gtk_path_transform (GskPath                *line_path,
+gtk_path_transform (GskPathMeasure         *measure,
                     GskPath                *path,
                     const graphene_point_t *offset)
 {
-  GskPathMeasure *measure = gsk_path_measure_new (line_path);
   GtkPathTransform transform = { measure, gsk_path_builder_new (), *offset };
   graphene_rect_t bounds;
 
@@ -186,8 +175,6 @@ gtk_path_transform (GskPath                *line_path,
 
   gsk_path_foreach (path, -1, gtk_path_transform_op, &transform);
 
-  gsk_path_measure_unref (measure);
-
   return gsk_path_builder_free_to_path (transform.builder);
 }
 
@@ -203,6 +190,7 @@ gtk_path_widget_clear_paths (GtkPathWidget *self)
   gtk_path_widget_clear_text_path (self);
 
   g_clear_pointer (&self->line_path, gsk_path_unref);
+  g_clear_pointer (&self->line_measure, gsk_path_measure_unref);
 }
 
 static void
@@ -213,8 +201,11 @@ gtk_path_widget_create_text_path (GtkPathWidget *self)
 
   gtk_path_widget_clear_text_path (self);
 
+  if (self->line_measure == NULL)
+    return;
+
   path = create_path_from_text (GTK_WIDGET (self), self->text, &offset);
-  self->text_path = gtk_path_transform (self->line_path, path, &offset);
+  self->text_path = gtk_path_transform (self->line_measure, path, &offset);
 
   gsk_path_unref (path);
 }
@@ -240,6 +231,8 @@ gtk_path_widget_create_paths (GtkPathWidget *self)
                              self->points[3].x * width, self->points[3].y * height);
   self->line_path = gsk_path_builder_free_to_path (builder);
 
+  self->line_measure = gsk_path_measure_new (self->line_path);
+
   gtk_path_widget_create_text_path (self);
 }
 
@@ -321,6 +314,27 @@ gtk_path_widget_snapshot (GtkWidget   *widget,
 
       gsk_path_unref (path);
     }
+
+  if (self->line_closest >= 0)
+    {
+      GskPathBuilder *builder;
+      GskPathPoint point;
+      graphene_point_t closest;
+
+      builder = gsk_path_builder_new ();
+      if (gsk_path_measure_get_point (self->line_measure, self->line_closest, &point))
+        {
+          gsk_path_point_get_position (self->line_path, &point, &closest);
+          gsk_path_builder_add_circle (builder, &closest, POINT_SIZE);
+          path = gsk_path_builder_free_to_path (builder);
+
+          gtk_snapshot_push_fill (snapshot, path, GSK_FILL_RULE_WINDING);
+          gtk_snapshot_append_color (snapshot, &(GdkRGBA) { 0, 0, 1, 1 }, &GRAPHENE_RECT_INIT (0, 0, width, height));
+          gtk_snapshot_pop (snapshot);
+
+          gsk_path_unref (path);
+        }
+    }
 }
 
 static void
@@ -502,13 +516,14 @@ pointer_motion (GtkEventControllerMotion *controller,
   GskPathPoint point;
   graphene_point_t pos;
 
-  if (gsk_path_get_closest_point (self->line_path,
+  if (gsk_path_get_closest_point (gsk_path_measure_get_path (self->line_measure),
                                   &GRAPHENE_POINT_INIT (x, y),
                                   INFINITY,
                                   &point))
     {
-      gsk_path_point_get_position (&point, self->line_path, &pos);
-
+      gsk_path_point_get_position (self->line_path, &point, &pos);
+      self->line_closest = graphene_point_distance (&pos, &GRAPHENE_POINT_INIT (x, y), NULL, NULL);
+    
       gtk_widget_queue_draw (GTK_WIDGET (self));
     }
 }
@@ -517,6 +532,8 @@ static void
 pointer_leave (GtkEventControllerMotion *controller,
                GtkPathWidget            *self)
 {
+  self->line_closest = -1;
+
   gtk_widget_queue_draw (GTK_WIDGET (self));
 }
 
@@ -537,6 +554,8 @@ gtk_path_widget_init (GtkPathWidget *self)
   g_signal_connect (controller, "leave", G_CALLBACK (pointer_leave), self);
   gtk_widget_add_controller (GTK_WIDGET (self), controller);
 
+  self->line_closest = -1;
+
   self->points[0] = GRAPHENE_POINT_INIT (0.1, 0.9);
   self->points[1] = GRAPHENE_POINT_INIT (0.3, 0.1);
   self->points[2] = GRAPHENE_POINT_INIT (0.7, 0.1);

demos/gtk-demo/path_walk.c

@@ -1,373 +0,0 @@
-/* Path/Walk
- *
- * This demo draws a world map and shows how to animate objects along a GskPath.
- *
- * The world map that is used here is a path with 211 lines and 1569 cubic
- * Bėzier segments in 121 contours.
- */
-
-#include <glib/gi18n.h>
-#include <gtk/gtk.h>
-
-#define GTK_TYPE_PATH_WALK (gtk_path_walk_get_type ())
-G_DECLARE_FINAL_TYPE (GtkPathWalk, gtk_path_walk, GTK, PATH_WALK, GtkWidget)
-
-#define POINT_SIZE 8
-
-enum {
-  PROP_0,
-  PROP_N_POINTS,
-  PROP_PATH,
-  N_PROPS
-};
-
-struct _GtkPathWalk
-{
-  GtkWidget parent_instance;
-
-  GskPath *path;
-  GskPathMeasure *measure;
-  graphene_rect_t bounds;
-  GskPath *arrow_path;
-  guint n_points;
-};
-
-struct _GtkPathWalkClass
-{
-  GtkWidgetClass parent_class;
-};
-
-static GParamSpec *properties[N_PROPS] = { NULL, };
-
-G_DEFINE_TYPE (GtkPathWalk, gtk_path_walk, GTK_TYPE_WIDGET)
-
-static void
-rgba_init_from_hsla (GdkRGBA *rgba,
-                     float    hue,
-                     float    saturation,
-                     float    lightness,
-                     float    alpha)
-{
-  float m1, m2;
-
-  if (lightness <= 0.5)
-    m2 = lightness * (1 + saturation);
-  else
-    m2 = lightness + saturation - lightness * saturation;
-  m1 = 2 * lightness - m2;
-
-  rgba->alpha = alpha;
-
-  if (saturation == 0)
-    {
-      rgba->red = lightness;
-      rgba->green = lightness;
-      rgba->blue = lightness;
-    }
-  else
-    {
-      hue = hue + 120;
-      while (hue > 360)
-        hue -= 360;
-      while (hue < 0)
-        hue += 360;
-
-      if (hue < 60)
-        rgba->red = m1 + (m2 - m1) * hue / 60;
-      else if (hue < 180)
-        rgba->red = m2;
-      else if (hue < 240)
-        rgba->red = m1 + (m2 - m1) * (240 - hue) / 60;
-      else
-        rgba->red = m1;
-
-      hue -= 120;
-      if (hue < 0)
-        hue += 360;
-
-      if (hue < 60)
-        rgba->green = m1 + (m2 - m1) * hue / 60;
-      else if (hue < 180)
-        rgba->green = m2;
-      else if (hue < 240)
-        rgba->green = m1 + (m2 - m1) * (240 - hue) / 60;
-      else
-        rgba->green = m1;
-
-      hue -= 120;
-      if (hue < 0)
-        hue += 360;
-
-      if (hue < 60)
-        rgba->blue = m1 + (m2 - m1) * hue / 60;
-      else if (hue < 180)
-        rgba->blue = m2;
-      else if (hue < 240)
-        rgba->blue = m1 + (m2 - m1) * (240 - hue) / 60;
-      else
-        rgba->blue = m1;
-    }
-}
-
-static void
-gtk_path_walk_snapshot (GtkWidget   *widget,
-                        GtkSnapshot *snapshot)
-{
-  GtkPathWalk *self = GTK_PATH_WALK (widget);
-  double width = gtk_widget_get_width (widget);
-  double height = gtk_widget_get_height (widget);
-  float length, progress;
-  GskStroke *stroke;
-  guint i;
-
-  if (self->path == NULL)
-    return;
-
-  gtk_snapshot_save (snapshot);
-
-  stroke = gsk_stroke_new (2.0);
-  gtk_snapshot_push_stroke (snapshot, self->path, stroke);
-  gtk_snapshot_append_color (snapshot, &(GdkRGBA) { 0, 0, 0, 1 }, &GRAPHENE_RECT_INIT (0, 0, width, height));
-  gtk_snapshot_pop (snapshot);
-  gsk_stroke_free (stroke);
-
-  length = gsk_path_measure_get_length (self->measure);
-  progress = 25.f * gdk_frame_clock_get_frame_time (gtk_widget_get_frame_clock (widget)) / G_USEC_PER_SEC;
-
-  stroke = gsk_stroke_new (1.0);
-  for (i = 0; i < self->n_points; i++)
-    {
-      GskPathPoint point;
-      graphene_point_t position;
-      float angle;
-      GdkRGBA color;
-      float distance;
-
-      distance = i * length / self->n_points;
-      distance = fmod (distance + progress, length);
-
-      gsk_path_measure_get_point (self->measure, distance, &point);
-      gsk_path_point_get_position (&point, self->path, &position);
-      angle = gsk_path_point_get_rotation (&point, self->path, GSK_PATH_FROM_START);
-      rgba_init_from_hsla (&color, 360.f * i / self->n_points, 1, 0.5, 1);
-
-      gtk_snapshot_save (snapshot);
-      gtk_snapshot_translate (snapshot, &position);
-      gtk_snapshot_rotate (snapshot, angle);
-      gtk_snapshot_append_fill (snapshot, self->arrow_path, GSK_FILL_RULE_EVEN_ODD, &color);
-      gtk_snapshot_append_stroke (snapshot, self->arrow_path, stroke, &(GdkRGBA) { 0, 0, 0, 1 });
-      gtk_snapshot_restore (snapshot);
-    }
-
-  gsk_stroke_free (stroke);
-  gtk_snapshot_restore (snapshot);
-}
-
-static void
-gtk_path_walk_measure (GtkWidget      *widget,
-                       GtkOrientation  orientation,
-                       int             for_size,
-                       int            *minimum,
-                       int            *natural,
-                       int            *minimum_baseline,
-                       int            *natural_baseline)
-{
-  GtkPathWalk *self = GTK_PATH_WALK (widget);
-
-  if (orientation == GTK_ORIENTATION_HORIZONTAL)
-    *minimum = *natural = (int) ceilf (self->bounds.size.width);
-  else
-    *minimum = *natural = (int) ceilf (self->bounds.size.height);
-}
-
-static void
-gtk_path_walk_set_n_points (GtkPathWalk *self,
-                            gsize        n_points)
-{
-  if (self->n_points == n_points)
-    return;
-
-  self->n_points = n_points;
-
-  gtk_widget_queue_draw (GTK_WIDGET (self));
-
-  g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_N_POINTS]);
-}
-
-static void
-gtk_path_walk_set_path (GtkPathWalk *self,
-                        GskPath     *path)
-{
-  if (self->path == path)
-    return;
-
-  g_clear_pointer (&self->path, gsk_path_unref);
-  graphene_rect_init (&self->bounds, 0, 0, 0, 0);
-  if (path)
-    {
-      GskStroke *stroke;
-
-      self->path = gsk_path_ref (path);
-      stroke = gsk_stroke_new (2.0);
-      gsk_path_get_stroke_bounds (path, stroke, &self->bounds);
-      gsk_stroke_free (stroke);
-      self->measure = gsk_path_measure_new (self->path);
-    }
-
-  gtk_widget_queue_resize (GTK_WIDGET (self));
-
-  g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_PATH]);
-}
-
-static void
-gtk_path_walk_set_property (GObject      *object,
-                            guint         prop_id,
-                            const GValue *value,
-                            GParamSpec   *pspec)
-
-{
-  GtkPathWalk *self = GTK_PATH_WALK (object);
-
-  switch (prop_id)
-    {
-    case PROP_N_POINTS:
-      gtk_path_walk_set_n_points (self, g_value_get_uint (value));
-      break;
-
-    case PROP_PATH:
-      gtk_path_walk_set_path (self, g_value_get_boxed (value));
-      break;
-
-    default:
-      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
-      break;
-    }
-}
-
-static void
-gtk_path_walk_get_property (GObject    *object,
-                            guint       prop_id,
-                            GValue     *value,
-                            GParamSpec *pspec)
-{
-  GtkPathWalk *self = GTK_PATH_WALK (object);
-
-  switch (prop_id)
-    {
-    case PROP_N_POINTS:
-      g_value_set_uint (value, self->n_points);
-      break;
-
-    case PROP_PATH:
-      g_value_set_boxed (value, self->path);
-      break;
-
-    default:
-      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
-      break;
-    }
-}
-
-static void
-gtk_path_walk_dispose (GObject *object)
-{
-  GtkPathWalk *self = GTK_PATH_WALK (object);
-
-  g_clear_pointer (&self->path, gsk_path_unref);
-  g_clear_pointer (&self->measure, gsk_path_measure_unref);
-  g_clear_pointer (&self->arrow_path, gsk_path_unref);
-
-  G_OBJECT_CLASS (gtk_path_walk_parent_class)->dispose (object);
-}
-
-static void
-gtk_path_walk_class_init (GtkPathWalkClass *klass)
-{
-  GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
-  GObjectClass *object_class = G_OBJECT_CLASS (klass);
-
-  object_class->dispose = gtk_path_walk_dispose;
-  object_class->set_property = gtk_path_walk_set_property;
-  object_class->get_property = gtk_path_walk_get_property;
-
-  widget_class->snapshot = gtk_path_walk_snapshot;
-  widget_class->measure = gtk_path_walk_measure;
-
-  properties[PROP_N_POINTS] =
-    g_param_spec_uint ("n-points",
-                       NULL, NULL,
-                       1, G_MAXUINT,
-                       500,
-                       G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
-
-  properties[PROP_PATH] =
-    g_param_spec_boxed ("path",
-                        NULL, NULL,
-                        GSK_TYPE_PATH,
-                        G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
-
-  g_object_class_install_properties (object_class, N_PROPS, properties);
-}
-
-static gboolean
-tick_tick_tick (GtkWidget     *self,
-                GdkFrameClock *frame_clock,
-                gpointer       unused)
-{
-  gtk_widget_queue_draw (GTK_WIDGET (self));
-
-  return G_SOURCE_CONTINUE;
-}
-
-static void
-gtk_path_walk_init (GtkPathWalk *self)
-{
-  /* Data taken from
-   * https://commons.wikimedia.org/wiki/Maps_of_the_world#/media/File:Simplified_blank_world_map_without_Antartica_(no_borders).svg
-   */
-  GBytes *data = g_resources_lookup_data ("/path_walk/path_world.txt", 0, NULL);
-  GskPath *path = gsk_path_parse (g_bytes_get_data (data, NULL));
-  g_bytes_unref (data);
-  gtk_path_walk_set_path (self, path);
-  gsk_path_unref (path);
-  self->arrow_path = gsk_path_parse ("M 5 0 L 0 -5. 0 -2, -5 -2, -5 2, 0 2, 0 5 Z");
-  self->n_points = 500;
-  gtk_widget_add_tick_callback (GTK_WIDGET (self), tick_tick_tick, NULL, NULL);
-}
-
-GtkWidget *
-gtk_path_walk_new (void)
-{
-  GtkPathWalk *self;
-
-  self = g_object_new (GTK_TYPE_PATH_WALK, NULL);
-
-  return GTK_WIDGET (self);
-}
-
-GtkWidget *
-do_path_walk (GtkWidget *do_widget)
-{
-  static GtkWidget *window = NULL;
-
-  if (!window)
-    {
-      GtkBuilder *builder;
-
-      g_type_ensure (GTK_TYPE_PATH_WALK);
-
-      builder = gtk_builder_new_from_resource ("/path_walk/path_walk.ui");
-      window = GTK_WIDGET (gtk_builder_get_object (builder, "window"));
-      gtk_window_set_display (GTK_WINDOW (window),
-                              gtk_widget_get_display (do_widget));
-      g_object_add_weak_pointer (G_OBJECT (window), (gpointer *) &window);
-      g_object_unref (builder);
-    }
-
-  if (!gtk_widget_get_visible (window))
-    gtk_window_present (GTK_WINDOW (window));
-  else
-    gtk_window_destroy (GTK_WINDOW (window));
-
-  return window;
-}

demos/gtk-demo/path_walk.ui

@@ -1,33 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<interface>
-  <object class="GtkWindow" id="window">
-    <property name="title" translatable="yes">World Map</property>
-    <property name="titlebar">
-      <object class="GtkHeaderBar">
-        <child type="end">
-          <object class="GtkSpinButton">
-            <property name="adjustment">
-              <object class="GtkAdjustment" id="adjustment">
-                <property name="lower">0</property>
-                <property name="upper">5000</property>
-                <property name="value">500</property>
-              </object>
-            </property>
-          </object>
-        </child>
-      </object>
-    </property>
-    <property name="child">
-      <object class="GtkBox">
-        <property name="orientation">vertical</property>
-        <child>
-          <object class="GtkPathWalk" id="view">
-            <property name="n-points" bind-source="adjustment" bind-property="value"/>
-            <property name="hexpand">true</property>
-            <property name="vexpand">true</property>
-          </object>
-        </child>
-      </object>
-    </property>
-  </object>
-</interface>

docs/reference/gsk/gsk4.toml.in

@@ -32,34 +32,7 @@ show_class_hierarchy = true
 base_url = "https://gitlab.gnome.org/GNOME/gtk/-/blob/main/"
 
 [extra]
-content_files = [
-  "paths.md",
-]
 content_images = [
   "gtk-logo.svg",
-  "images/arc-dark.png",
-  "images/arc-light.png",
-  "images/caps-dark.png",
-  "images/caps-light.png",
-  "images/conic-light.png",
-  "images/conic-dark.png",
-  "images/cubic-dark.png",
-  "images/cubic-light.png",
-  "images/curvature-dark.png",
-  "images/curvature-light.png",
-  "images/directions-dark.png",
-  "images/directions-light.png",
-  "images/fill-even-odd.png",
-  "images/fill-winding.png",
-  "images/join-dark.png",
-  "images/join-light.png",
-  "images/line-dark.png",
-  "images/line-light.png",
-  "images/path-dark.png",
-  "images/path-light.png",
-  "images/quad-dark.png",
-  "images/quad-light.png",
-  "images/stroke-miter.png",
-  "images/stroke-round.png",
 ]
 urlmap_file = "urlmap.js"

docs/reference/gsk/images/arc.svg

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docs/reference/gsk/images/caps.svg

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docs/reference/gsk/images/conic.svg

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docs/reference/gsk/images/cubic.svg

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docs/reference/gsk/images/path.svg

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docs/reference/gsk/images/quad.svg

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docs/reference/gsk/meson.build

@@ -1,7 +1,3 @@
-gsk_expand_content_md_files = [
-  'paths.md',
-]
-
 if get_option('documentation')
   gsk4_toml = configure_file(
     input: 'gsk4.toml.in',
@@ -25,7 +21,7 @@ if get_option('documentation')
       '@INPUT1@',
     ],
     depends: [ gdk_gir[0] ],
-    depend_files: [ gsk_expand_content_md_files ],
+    depend_files: [ expand_content_md_files ],
     build_by_default: true,
     install: true,
     install_dir: docs_dir,

docs/reference/gsk/paths.md

@@ -1,174 +0,0 @@
-Title: Paths
-Slug: paths
-
-GSK provides a path API that can be used to render more complex
-shapes than lines or rounded rectangles. It is comparable to cairos
-[path API](https://www.cairographics.org/manual/cairo-Paths.html),
-with some notable differences.
-
-In general, a path consists of one or more connected **_contours_**,
-each of which may have multiple **_operations_**, and may or may not be closed.
-Operations can be straight lines or curves of various kinds. At the points
-where the operations connect, the path can have sharp turns.
-
-<figure>
-  <picture>
-    <source srcset="path-dark.png" media="(prefers-color-scheme: dark)">
-    <img alt="A path with multiple contours" src="path-light.png">
-  </picture>
-  <figcaption>A path with one closed, and one open contour</figcaption>
-</figure>
-
-The central object of the GSK path API is the immutable [struct@Gsk.Path]
-struct, which contains path data in compact form suitable for rendering.
-
-## Creating Paths
-
-Since `GskPath` is immutable, the auxiliary [struct@Gsk.PathBuilder] struct
-can be used to construct a path piece by piece. The pieces are specified with
-points, some of which will be on the path, while others are just **_control points_**
-that are used to influence the shape of the resulting path.
-
-<figure>
-  <picture>
-    <source srcset="cubic-dark.png" media="(prefers-color-scheme: dark)">
-    <img alt="An cubic Bézier" src="cubic-light.png">
-  </picture>
-  <figcaption>A cubic Bézier operation, with 2 control points</figcaption>
-</figure>
-
-The `GskPathBuilder` API has three distinct groups of functions:
-
-- Functions for building contours from individual operations, like [method@Gsk.PathBuilder.move_to],
-  [method@Gsk.PathBuilder.line_to], [method@Gsk.PathBuilder.cubic_to], [method@Gsk.PathBuilder.close]. `GskPathBuilder` maintains a **_current point_**, so these methods all
-  take one less points than necessary for the operation (e.g. `gsk_path_builder_line_to`
-  only takes a single point and draws a line from the current point to the new point).
-
-- Functions for adding complete contours, such as [method@Gsk.PathBuilder.add_rect],
-  [method@Gsk.PathBuilder.add_rounded_rect], [method@Gsk.PathBuilder.add_circle].
-
-- Adding parts of a preexisting path. Functions in this group include
-  [method@Gsk.PathBuilder.add_path] and [method@Gsk.PathBuilder.add_segment].
-
-When you are done with building a path, you can convert the accumulated path
-data into a `GskPath` struct with [method@Gsk.PathBuilder.free_to_path].
-
-A sometimes convenient alternative is to create a path from a serialized form,
-with [func@Gsk.Path.parse]. This function interprets strings in SVG path syntax,
-such as:
-
-    M 100 100 C 100 200 200 200 200 100 Z
-
-## Rendering with Paths
-
-There are two main ways to render with paths. The first is to **_fill_** the
-interior of a path with a color or more complex content, such as a gradient.
-GSK supports different ways of determining what part of the plane are interior
-to the path, which can be selected with a [enum@Gsk.FillRule] value.
-
-<figure>
-  <picture>
-    <img alt="A filled path" src="fill-winding.png">
-  </picture>
-  <figcaption>A path filled with GSK_FILL_RULE_WINDING</figcaption>
-</figure>
-
-<figure>
-  <picture>
-    <img alt="A filled path" src="fill-even-odd.png">
-  </picture>
-  <figcaption>The same path, filled with GSK_FILL_RULE_EVEN_ODD</figcaption>
-</figure>
-
-To fill a path, use [gtk_snapshot_append_fill()](../gtk4/method.Snapshot.append_fill.html)
-or the more general [gtk_snapshot_push_fill()](../gtk4/method.Snapshot.push_fill.html).
-
-Alternatively, a path can be **_stroked_**, which means to emulate drawing
-with an idealized pen along the path. The result of stroking a path is another
-path (the **_stroke path_**), which is then filled.
-
-The stroke operation can be influenced with the [struct@Gsk.Stroke] struct
-that collects various stroke parameters, such as the line width, the style
-of line joins and line caps, and a dash pattern.
-
-<figure>
-  <picture>
-    <img alt="A stroked path" src="stroke-miter.png">
-  </picture>
-  <figcaption>The same path, stroked with GSK_LINE_JOIN_MITER</figcaption>
-</figure>
-
-<figure>
-  <picture>
-    <img alt="A stroked path" src="stroke-round.png">
-  </picture>
-  <figcaption>The same path, stroked with GSK_LINE_JOIN_ROUND</figcaption>
-</figure>
-
-To stroke a path, use
-[gtk_snapshot_append_stroke()](../gtk4/method.Snapshot.append_stroke.html)
-or [gtk_snapshot_push_stroke()](../gtk4/method.Snapshot.push_stroke.html).
-
-## Hit testing
-
-When paths are rendered as part of an interactive interface, it is sometimes
-necessary to determine whether the mouse points is over the path. GSK provides
-[method@Gsk.Path.in_fill] for this purpose.
-
-## Path length
-
-An important property of paths is their **_length_**. Computing it efficiently
-requires caching, therefore GSK provides a separate [struct@Gsk.PathMeasure] object
-to deal with path lengths. After constructing a `GskPathMeasure` object for a path,
-it can be used to determine the length of the path with [method@Gsk.PathMeasure.get_length]
-and locate points at a given distance into the path with [method@Gsk.PathMeasure.get_point].
-
-## Other Path APIs
-
-Paths have uses beyond rendering, for example as trajectories in animations.
-In such uses, it is often important to access properties of paths, such as
-their tangents at certain points. GSK provides an abstract representation
-for points on a path in the form of the [struct@Gsk.PathPoint] struct.
-You can query properties of a path at certain point once you have a
-`GskPathPoint` representing that point.
-
-`GskPathPoint` structs can be compared for equality with [method@Gsk.PathPoint.equal]
-and ordered wrt. to which one comes first, using [method@Gsk.PathPoint.compare].
-
-To obtain a `GskPathPoint`, use [method@Gsk.Path.get_closest_point],
-[method@Gsk.Path.get_start_point], [method@Gsk.Path.get_end_point] or
-[method@Gsk.PathMeasure.get_point].
-
-To query properties of the path at a point, use [method@Gsk.PathPoint.get_position],
-[method@Gsk.PathPoint.get_tangent], [method@Gsk.PathPoint.get_rotation],
-[method@Gsk.PathPoint.get_curvature] and [method@Gsk.PathPoint.get_distance].
-
-Some of the properties can have different values for the path going into
-the point and the path leaving the point, typically at points where the
-path takes sharp turns. Examples for this are tangents (which can have up
-to 4 different values) and curvatures (which can have two different values).
-
-<figure>
-  <picture>
-    <source srcset="directions-dark.png" media="(prefers-color-scheme: dark)">
-    <img alt="Path Tangents" src="directions-light.png">
-  </picture>
-  <figcaption>Path Tangents</figcaption>
-</figure>
-
-## Going beyond GskPath
-
-Lots of powerful functionality can be implemented for paths:
-
-- Finding intersections
-- Offsetting curves
-- Turning stroke outlines into paths
-- Molding curves (making them pass through a given point)
-
-GSK does not provide API for all of these, but it does offer a way to get at
-the underlying Bézier curves, so you can implement such functionality yourself.
-You can use [method@Gsk.Path.foreach] to iterate over the operations of the
-path, and get the points needed to reconstruct or modify the path piece by piece.
-
-See e.g. the [Primer on Bézier curves](https://pomax.github.io/bezierinfo/)
-for inspiration of useful things to explore.

docs/reference/gtk/gtk4-path-tool.rst

@@ -1,193 +0,0 @@
-.. _gtk4-path-tool(1):
-
-=================
-gtk4-path-tool
-=================
-
------------------------
-GskPath Utility
------------------------
-
-SYNOPSIS
---------
-|   **gtk4-path-tool** <COMMAND> [OPTIONS...] <PATH>
-|
-|   **gtk4-path-tool** decompose [OPTIONS...] <PATH>
-|   **gtk4-path-tool** show [OPTIONS...] <PATH>
-|   **gtk4-path-tool** render [OPTIONS...] <PATH>
-|   **gtk4-path-tool** info [OPTIONS...] <PATH>
-
-DESCRIPTION
------------
-
-``gtk4-path-tool`` can perform various tasks on paths. Paths are specified
-in SVG syntax, as strings like "M 100 100 C 100 200 200 200 200 100 Z".
-
-To read a path from a file, use a filename that starts with a '.' or a '/'.
-To read a path from stdin, use '-'.
-
-COMMANDS
---------
-
-Decomposing
-^^^^^^^^^^^
-
-The ``decompose`` command approximates the path by one with simpler elements.
-When used without options, the curves of the path are approximated by line
-segments.
-
-``--allow-quad``
-
-  Allow quadratic Bézier curves to be used in the generated path.
-
-``--allow-cubic``
-
-  Allow cubic Bézier curves to be used in the generated path.
-
-``--allow-conic``
-
-  Allow conic Bézier curves to be used in the generated path.
-
-Showing
-^^^^^^^
-
-The ``show`` command displays the given path in a window. The interior
-of the path is filled.
-
-``--fill-rule=VALUE``
-
-  The fill rule that is used to determine what areas are inside the path.
-  The possible values are ``winding`` or ``even-odd``. The default is ``winding``.
-
-``--fg-color=COLOR``
-
-  The color that is used to fill the interior of the path or stroke the path.
-  If not specified, black is used.
-
-``--bg-color=COLOR``
-
-  The color that is used to render the background behind the path.
-  If not specified, white is used.
-
-``--fill``
-
-  Fill the path (this is the default).
-
-``--stroke``
-
-  Stroke the path instead of filling it.
-
-``--line-width=VALUE``
-
-  The line width to use for the stroke. ``VALUE`` must be a positive number.
-  The default line width is 1.
-
-``--line-cap=VALUE``
-
-  The cap style to use at line ends. The possible values are ``butt``, ``round``
-  or ``square``. See the SVG specification for details on these styles.
-  The default cap style is ``butt``.
-
-``--line-join=VALUE``
-
-  The join style to use at line joins. The possible values are ``miter``,
-  ``miter-clip``, ``round``, ``bevel`` or ``arcs``. See the SVG specification
-  for details on these styles.
-  The default join style is ``miter``.
-
-``--miter-limit=VALUE``
-
-  The limit at which to clip miters at line joins. The default value is 4.
-
-``--dashes=VALUE``
-
-  The dash pattern to use for this stroke. A dash pattern is specified by
-  a comma-separated list of alternating non-negative numbers. Each number
-  provides the length of alternate "on" and "off" portions of the stroke.
-  If the dash pattern is empty, dashing is disabled, which is the default.
-  See the SVG specification for details on dashing.
-
-``--dash-offset=VALUE``
-
-  The offset into the dash pattern where dashing should begin.
-  The default value is 0.
-
-Rendering
-^^^^^^^^^
-
-The ``render`` command renders the given path as a PNG image.
-The interior of the path is filled.
-
-``--fill-rule=VALUE``
-
-  The fill rule that is used to determine what areas are inside the path.
-  The possible values are ``winding`` or ``even-odd``. The default is ``winding``.
-
-``--fg-color=COLOR``
-
-  The color that is used to fill the interior of the path or stroke the path.
-  If not specified, black is used.
-
-``--bg-color=COLOR``
-
-  The color that is used to render the background behind the path.
-  If not specified, white is used.
-
-``--output-file=FILE``
-
-  The file to save the PNG image to.
-  If not specified, "path.png" is used.
-
-``--fill``
-
-  Fill the path (this is the default).
-
-``--stroke``
-
-  Stroke the path instead of filling it.
-
-``--line-width=VALUE``
-
-  The line width to use for the stroke. ``VALUE`` must be a positive number.
-  The default line width is 1.
-
-``--line-cap=VALUE``
-
-  The cap style to use at line ends. The possible values are ``butt``, ``round``
-  or ``square``. See the SVG specification for details on these styles.
-  The default cap style is ``butt``.
-
-``--line-join=VALUE``
-
-  The join style to use at line joins. The possible values are ``miter``,
-  ``miter-clip``, ``round``, ``bevel`` or ``arcs``. See the SVG specification
-  for details on these styles.
-  The default join style is ``miter``.
-
-``--miter-limit=VALUE``
-
-  The limit at which to clip miters at line joins. The default value is 4.
-
-``--dashes=VALUE``
-
-  The dash pattern to use for this stroke. A dash pattern is specified by
-  a comma-separated list of alternating non-negative numbers. Each number
-  provides the length of alternate "on" and "off" portions of the stroke.
-  If the dash pattern is empty, dashing is disabled, which is the default.
-  See the SVG specification for details on dashing.
-
-``--dash-offset=VALUE``
-
-  The offset into the dash pattern where dashing should begin.
-  The default value is 0.
-
-Info
-^^^^
-
-The ``info`` command shows various information about the given path,
-such as its bounding box.
-
-REFERENCES
-----------
-
-- SVG Path Specification, https://www.w3.org/TR/SVG2/paths.html

docs/reference/gtk/meson.build

@@ -77,7 +77,6 @@ if get_option('man-pages') and rst2man.found()
     [ 'gtk4-query-settings', '1', ],
     [ 'gtk4-rendernode-tool', '1' ],
     [ 'gtk4-update-icon-cache', '1', ],
-    [ 'gtk4-path-tool', '1', ],
   ]
 
   if get_option('demos')

gdk/gdkclipboard.c

@@ -297,7 +297,7 @@ gdk_clipboard_read_local_async (GdkClipboard        *clipboard,
     {
       GOutputStream *output_stream;
       GIOStream *stream;
-
+      
       stream = gdk_pipe_io_stream_new ();
       output_stream = g_io_stream_get_output_stream (stream);
       gdk_clipboard_write_async (clipboard,
@@ -767,7 +767,7 @@ gdk_clipboard_read_value_internal (GdkClipboard        *clipboard,
   GdkContentFormats *formats;
   GValue *value;
   GTask *task;
-
+ 
   task = g_task_new (clipboard, cancellable, callback, user_data);
   g_task_set_priority (task, io_priority);
   g_task_set_source_tag (task, source_tag);
@@ -946,7 +946,7 @@ gdk_clipboard_read_texture_finish (GdkClipboard  *clipboard,
   value = g_task_propagate_pointer (G_TASK (result), error);
   if (!value)
     return NULL;
-
+  
   return g_value_dup_object (value);
 }
 
@@ -1011,7 +1011,7 @@ gdk_clipboard_read_text_finish (GdkClipboard  *clipboard,
   value = g_task_propagate_pointer (G_TASK (result), error);
   if (!value)
     return NULL;
-
+  
   return g_value_dup_string (value);
 }
 
@@ -1110,7 +1110,7 @@ gdk_clipboard_write_async (GdkClipboard        *clipboard,
       GError *error = NULL;
 
       g_assert (gtype != G_TYPE_INVALID);
-
+      
       g_value_init (&value, gtype);
       if (gdk_content_provider_get_value (priv->content, &value, &error))
         {
@@ -1126,7 +1126,7 @@ gdk_clipboard_write_async (GdkClipboard        *clipboard,
         {
           g_task_return_error (task, error);
         }
-
+      
       g_value_unset (&value);
     }
   else
@@ -1148,7 +1148,7 @@ gdk_clipboard_write_finish (GdkClipboard  *clipboard,
   g_return_val_if_fail (g_task_is_valid (result, clipboard), FALSE);
   g_return_val_if_fail (g_task_get_source_tag (G_TASK (result)) == gdk_clipboard_write_async, FALSE);
 
-  return g_task_propagate_boolean (G_TASK (result), error);
+  return g_task_propagate_boolean (G_TASK (result), error); 
 }
 
 static gboolean
@@ -1248,8 +1248,8 @@ gdk_clipboard_set_content (GdkClipboard       *clipboard,
  * Sets the clipboard to contain the value collected from the given varargs.
  *
  * Values should be passed the same way they are passed to other value
- * collecting APIs, such as [method@GObject.Object.set] or
- * [func@GObject.signal_emit].
+ * collecting APIs, such as [`method@GObject.Object.set`] or
+ * [`func@GObject.signal_emit`].
  *
  * ```c
  * gdk_clipboard_set (clipboard, GTK_TYPE_STRING, "Hello World");
@@ -1263,7 +1263,7 @@ gdk_clipboard_set (GdkClipboard *clipboard,
                    ...)
 {
   va_list args;
-
+                          
   g_return_if_fail (GDK_IS_CLIPBOARD (clipboard));
 
   va_start (args, type);

gdk/gdkglcontext.c

@@ -1528,8 +1528,7 @@ gdk_gl_context_check_extensions (GdkGLContext *context)
 
   if (gdk_gl_context_get_use_es (context))
     {
-      priv->has_unpack_subimage = gdk_gl_version_greater_equal (&priv->gl_version, &GDK_GL_VERSION_INIT (3, 0)) ||
-                                  epoxy_has_gl_extension ("GL_EXT_unpack_subimage");
+      priv->has_unpack_subimage = epoxy_has_gl_extension ("GL_EXT_unpack_subimage");
       priv->has_khr_debug = epoxy_has_gl_extension ("GL_KHR_debug");
     }
   else

gdk/gdkgltexture.c

@@ -153,7 +153,7 @@ gdk_gl_texture_find_format (gboolean         use_es,
       if (gdk_memory_format_alpha (format) != alpha)
         continue;
 
-      if (!gdk_memory_format_gl_format (format, use_es, gl_major, gl_minor, &q_internal_format, &q_format, &q_type, q_swizzle))
+      if (!gdk_memory_format_gl_format (format, use_es, gl_major, gl_minor, &q_internal_format, &q_format, &q_type, &q_swizzle))
         continue;
 
       if (q_format != gl_format || q_type != gl_type)
@@ -188,7 +188,7 @@ gdk_gl_texture_do_download (GdkGLTexture *self,
                                    FALSE,
                                    major, minor,
                                    &gl_internal_format,
-                                   &gl_format, &gl_type, gl_swizzle))
+                                   &gl_format, &gl_type, &gl_swizzle))
     {
       if (download->stride == expected_stride &&
           download->format == format)

gdk/gdkmemoryformat.c

@@ -739,12 +739,12 @@ gdk_memory_format_gl_format (GdkMemoryFormat  format,
                              guint           *out_internal_format,
                              guint           *out_format,
                              guint           *out_type,
-                             GLint            out_swizzle[4])
+                             GLint          (*out_swizzle)[4])
 {
   *out_internal_format = memory_formats[format].gl.internal_format;
   *out_format = memory_formats[format].gl.format;
   *out_type = memory_formats[format].gl.type;
-  memcpy (out_swizzle, memory_formats[format].gl.swizzle, sizeof(GLint) * 4);
+  memcpy (out_swizzle, &memory_formats[format].gl.swizzle, sizeof(GLint) * 4);
 
   if (gles)
     {

gdk/gdkmemoryformatprivate.h

@@ -52,7 +52,7 @@ gboolean                gdk_memory_format_gl_format         (GdkMemoryFormat
                                                              guint                      *out_internal_format,
                                                              guint                      *out_format,
                                                              guint                      *out_type,
-                                                             GLint                       out_gizzle[4]);
+                                                             GLint                     (*out_gizzle)[4]);
 
 void                    gdk_memory_convert                  (guchar                     *dest_data,
                                                              gsize                       dest_stride,

gdk/gdkpaintable.c

@@ -25,12 +25,10 @@
 #include "gdkprivate.h"
 
 /* HACK: So we don't need to include any (not-yet-created) GSK or GTK headers */
-GdkSnapshot *   gtk_snapshot_new                        (void);
 void            gtk_snapshot_push_debug                 (GdkSnapshot            *snapshot,
                                                          const char             *message,
                                                          ...) G_GNUC_PRINTF (2, 3);
 void            gtk_snapshot_pop                        (GdkSnapshot            *snapshot);
-GdkPaintable *  gtk_snapshot_free_to_paintable          (GdkSnapshot            *snapshot);
 
 /**
  * GdkPaintable:
@@ -104,21 +102,9 @@ gdk_paintable_default_snapshot (GdkPaintable *paintable,
 static GdkPaintable *
 gdk_paintable_default_get_current_image (GdkPaintable *paintable)
 {
-  int width, height;
-  GdkSnapshot *snapshot;
+  g_warning ("FIXME: implement by snapshotting at default size and returning a GskRendererNodePaintable");
 
-  /* No need to check whether the paintable is static, as
-   * gdk_paintable_get_current_image () takes care of that already.  */
-
-  width = gdk_paintable_get_intrinsic_width (paintable);
-  height = gdk_paintable_get_intrinsic_height (paintable);
-
-  if (width <= 0 || height <= 0)
-    return gdk_paintable_new_empty (width, height);
-
-  snapshot = gtk_snapshot_new ();
-  gdk_paintable_snapshot (paintable, snapshot, width, height);
-  return gtk_snapshot_free_to_paintable (snapshot);
+  return paintable;
 }
 
 static GdkPaintableFlags

gdk/macos/gdkmacosmonitor.c

@@ -331,7 +331,7 @@ _gdk_macos_monitor_reconfigure (GdkMacosMonitor *self)
   gdk_monitor_set_physical_size (GDK_MONITOR (self), width_mm, height_mm);
   gdk_monitor_set_scale_factor (GDK_MONITOR (self), scale_factor);
   gdk_monitor_set_refresh_rate (GDK_MONITOR (self), refresh_rate);
-  gdk_monitor_set_subpixel_layout (GDK_MONITOR (self), subpixel_layout);
+  gdk_monitor_set_subpixel_layout (GDK_MONITOR (self), GDK_SUBPIXEL_LAYOUT_UNKNOWN);
 
   self->workarea = [screen visibleFrame];
 

gdk/wayland/gdkapplaunchcontext-wayland.c

@@ -93,8 +93,7 @@ gdk_wayland_app_launch_context_get_startup_notify_id (GAppLaunchContext *context
       id = app_launch_data.token;
       wl_event_queue_destroy (event_queue);
     }
-  else if (display->gtk_shell &&
-           gtk_shell1_get_version (display->gtk_shell) >= GTK_SHELL1_NOTIFY_LAUNCH_SINCE_VERSION)
+  else if (gtk_shell1_get_version (display->gtk_shell) >= GTK_SHELL1_NOTIFY_LAUNCH_SINCE_VERSION)
     {
       id = g_uuid_string_random ();
       gtk_shell1_notify_launch (display->gtk_shell, id);

gdk/wayland/meson.build

@@ -127,6 +127,3 @@ libgdk_wayland = static_library('gdk-wayland',
   link_with: [ libwayland_cursor, ],
   dependencies: [ gdk_deps, gdk_wayland_deps ],
 )
-
-# Used to generate pkg-config Requires
-wayland_public_deps = [wlclientdep]

gdk/win32/gdkevents-win32.c

@@ -2857,10 +2857,7 @@ gdk_event_translate (MSG *msg,
       break;
 
     case WM_SYSCOMMAND:
-      /* From: https://learn.microsoft.com/en-us/windows/win32/menurc/wm-syscommand?redirectedfrom=MSDN
-       * To obtain the correct result when testing the value of wParam,
-       * an application must combine the value 0xFFF0 with the wParam value by using the bitwise AND operator. */
-      switch (msg->wParam & 0xFFF0)
+      switch (msg->wParam)
 	{
 	case SC_MINIMIZE:
 	case SC_RESTORE:
@@ -2967,14 +2964,6 @@ gdk_event_translate (MSG *msg,
                   windowpos = (WINDOWPOS *) msg->lParam;
                   windowpos->cx = our_mmi.ptMaxSize.x;
                   windowpos->cy = our_mmi.ptMaxSize.y;
-
-                  if (!_gdk_win32_surface_lacks_wm_decorations (window) &&
-                      !(windowpos->flags & SWP_NOCLIENTSIZE) &&
-                      window->width == impl->next_layout.configured_width &&
-                      window->height == impl->next_layout.configured_height)
-                    {
-                      impl->inhibit_configure = TRUE;
-                    }
                 }
 
               impl->maximizing = FALSE;

gdk/win32/gdksurface-win32.c

@@ -1230,11 +1230,18 @@ get_effective_window_decorations (GdkSurface       *window,
 
       *decoration |= GDK_DECOR_MINIMIZE;
 
+      return TRUE;
+    }
+  else if (impl->hint_flags & GDK_HINT_MAX_SIZE)
+    {
+      *decoration = GDK_DECOR_ALL | GDK_DECOR_MAXIMIZE;
+      *decoration |= GDK_DECOR_MINIMIZE;
+
       return TRUE;
     }
   else
     {
-      *decoration = GDK_DECOR_ALL;
+      *decoration = (GDK_DECOR_ALL | GDK_DECOR_MINIMIZE | GDK_DECOR_MAXIMIZE);
       return TRUE;
     }
 

gdk/x11/gdkclipboard-x11.c

@@ -201,7 +201,7 @@ gdk_x11_clipboard_formats_to_targets (GdkContentFormats *formats)
             continue;
 
           if (g_str_equal (mime_types[i], special_targets[j].mime_type))
-            targets = g_slist_prepend (targets, (gpointer) g_intern_static_string (special_targets[j].x_target));
+            targets = g_slist_prepend (targets, (gpointer) g_intern_string (special_targets[j].x_target));
         }
       targets = g_slist_prepend (targets, (gpointer) mime_types[i]);
     }
@@ -238,8 +238,6 @@ gdk_x11_clipboard_formats_to_atoms (GdkDisplay        *display,
   for (l = targets; l; l = l->next)
     atoms[i++] = gdk_x11_get_xatom_by_name_for_display (display, l->data);
 
-  g_slist_free (targets);
-
   return atoms;
 }
 

gdk/x11/meson.build

@@ -86,5 +86,3 @@ libgdk_x11 = static_library('gdk-x11',
   ] + common_cflags,
   dependencies: [ gdk_deps, gdk_x11_deps, ],
 )
-
-x11_public_deps = [x11_dep]

gsk/gl/gskglcommandqueue.c

@@ -1456,7 +1456,7 @@ memory_format_gl_format (GdkMemoryFormat  data_format,
                          guint           *gl_internalformat,
                          guint           *gl_format,
                          guint           *gl_type,
-                         GLint            gl_swizzle[4])
+                         GLint          (*gl_swizzle)[4])
 {
   GdkMemoryDepth depth;
 
@@ -1577,7 +1577,7 @@ gsk_gl_command_queue_do_upload_texture_chunk (GskGLCommandQueue *self,
                                          &gl_internalformat,
                                          &gl_format,
                                          &gl_type,
-                                         gl_swizzle);
+                                         &gl_swizzle);
 
   gdk_texture_downloader_init (&downloader, texture);
   gdk_texture_downloader_set_format (&downloader, data_format);
@@ -1595,7 +1595,8 @@ gsk_gl_command_queue_do_upload_texture_chunk (GskGLCommandQueue *self,
     {
       glTexSubImage2D (GL_TEXTURE_2D, 0, x, y, width, height, gl_format, gl_type, data);
     }
-  else if (stride % bpp == 0 && gdk_gl_context_has_unpack_subimage (self->context))
+  else if (stride % bpp == 0 &&
+           (gdk_gl_context_check_version (self->context, NULL, "3.0") || gdk_gl_context_has_unpack_subimage (self->context)))
     {
       glPixelStorei (GL_UNPACK_ROW_LENGTH, stride / bpp);
 
@@ -1683,7 +1684,7 @@ gsk_gl_command_queue_upload_texture_chunks (GskGLCommandQueue    *self,
                                          &gl_internalformat,
                                          &gl_format,
                                          &gl_type,
-                                         gl_swizzle);
+                                         &gl_swizzle);
 
   glTexImage2D (GL_TEXTURE_2D, 0, gl_internalformat, width, height, 0, gl_format, gl_type, NULL);
 

gsk/gskcontourprivate.h

@@ -57,37 +57,52 @@ void                    gsk_contour_get_start_end               (const GskContou
                                                                  graphene_point_t       *end);
 int                     gsk_contour_get_winding                 (const GskContour       *self,
                                                                  const graphene_point_t *point);
-gsize                   gsk_contour_get_n_ops                   (const GskContour       *self);
+
 gboolean                gsk_contour_get_closest_point           (const GskContour       *self,
                                                                  const graphene_point_t *point,
                                                                  float                   threshold,
                                                                  GskRealPathPoint       *result,
                                                                  float                  *out_dist);
+
 void                    gsk_contour_get_position                (const GskContour       *self,
                                                                  GskRealPathPoint       *point,
                                                                  graphene_point_t       *pos);
+
 void                    gsk_contour_get_tangent                 (const GskContour       *self,
                                                                  GskRealPathPoint       *point,
                                                                  GskPathDirection        direction,
                                                                  graphene_vec2_t        *tangent);
 float                   gsk_contour_get_curvature               (const GskContour       *self,
                                                                  GskRealPathPoint       *point,
-                                                                 GskPathDirection        direction,
                                                                  graphene_point_t       *center);
+gpointer                gsk_contour_init_measure                (const GskContour       *self,
+                                                                 float                   tolerance,
+                                                                 float                  *out_length);
+void                    gsk_contour_free_measure                (const GskContour       *self,
+                                                                 gpointer                data);
+int                     gsk_contour_point_compare               (const GskContour       *self,
+                                                                 GskRealPathPoint       *p1,
+                                                                 GskRealPathPoint       *p2);
+
 void                    gsk_contour_add_segment                 (const GskContour       *self,
                                                                  GskPathBuilder         *builder,
                                                                  gboolean                emit_move_to,
                                                                  GskRealPathPoint       *start,
                                                                  GskRealPathPoint       *end);
 
-gpointer                gsk_contour_init_measure                (const GskContour       *self,
-                                                                 float                   tolerance,
-                                                                 float                  *out_length);
-void                    gsk_contour_free_measure                (const GskContour       *self,
-                                                                 gpointer                data);
 void                    gsk_contour_get_point                   (const GskContour       *self,
                                                                  gpointer                measure_data,
-                                                                 float                   distance,
+                                                                 float                   offset,
+                                                                 GskRealPathPoint       *result);
+void                    gsk_contour_get_start_point             (const GskContour       *self,
+                                                                 GskRealPathPoint       *result);
+void                    gsk_contour_get_end_point               (const GskContour       *self,
+                                                                 GskRealPathPoint       *result);
+gboolean                gsk_contour_get_previous_point          (const GskContour       *self,
+                                                                 GskRealPathPoint       *point,
+                                                                 GskRealPathPoint       *result);
+gboolean                gsk_contour_get_next_point              (const GskContour       *self,
+                                                                 GskRealPathPoint       *point,
                                                                  GskRealPathPoint       *result);
 float                   gsk_contour_get_distance                (const GskContour       *self,
                                                                  GskRealPathPoint       *point,

gsk/gskcurve-ct-values.c

@@ -1,213 +0,0 @@
-/* Legendre-Gauss values,
- * see https://pomax.github.io/bezierinfo/legendre-gauss.html
- */
-
-#if 0
-/* n = 64 */
-static const double T[] = {
-	-0.0243502926634244325089558428537156614268871093149758091634531663960566965166295288529853061657116894882370493013671717560479926679408068852617342586968190919443025679363843727751902756254975073084367002129407854253246662805532069172532219089321005870178809284335033318073251039701073379759,
-	0.0243502926634244325089558428537156614268871093149758091634531663960566965166295288529853061657116894882370493013671717560479926679408068852617342586968190919443025679363843727751902756254975073084367002129407854253246662805532069172532219089321005870178809284335033318073251039701073379759,
-	-0.0729931217877990394495429419403374932441261816687788533563163323377395217254429050181833064967505478802134768007678458612956459126148837496307967995621683597067400860540057918571357609346700883624064782909888895547912499697295335516804810990011835717296819569741981551097569810739977931249,
-	0.0729931217877990394495429419403374932441261816687788533563163323377395217254429050181833064967505478802134768007678458612956459126148837496307967995621683597067400860540057918571357609346700883624064782909888895547912499697295335516804810990011835717296819569741981551097569810739977931249,
-	-0.1214628192961205544703764634922478782186836383371912940423495826006931832245070944213952236889690237679661122848626352437115925113582515415979746598665681268376919737373113667247142315234607397986222184384307059013512155412722263090766858403726100735651684437098923088469949297570988091677,
-	0.1214628192961205544703764634922478782186836383371912940423495826006931832245070944213952236889690237679661122848626352437115925113582515415979746598665681268376919737373113667247142315234607397986222184384307059013512155412722263090766858403726100735651684437098923088469949297570988091677,
-	-0.1696444204239928180373136297482698441999902667343778505894178746884342357796505591325925801106834127602396624627746208498838190598644711533868179088757129652678801285453336384132061358206434768209251779433993367981112053126660575920785488821886662635718276505127786854167528795165050389903,
-	0.1696444204239928180373136297482698441999902667343778505894178746884342357796505591325925801106834127602396624627746208498838190598644711533868179088757129652678801285453336384132061358206434768209251779433993367981112053126660575920785488821886662635718276505127786854167528795165050389903,
-	-0.217423643740007084149648748988822617578485831141222348630380401885689634737659235537163737740243604800759921292790013642836998201691226098978544332296437547642195961469059807833597096166848933098833151166287901339013986496737408125314858259377210847115061960167857239951500335854820530586,
-	0.217423643740007084149648748988822617578485831141222348630380401885689634737659235537163737740243604800759921292790013642836998201691226098978544332296437547642195961469059807833597096166848933098833151166287901339013986496737408125314858259377210847115061960167857239951500335854820530586,
-	-0.2646871622087674163739641725100201179804131362950932439559895448126206429452852982016450901649805445999078728714943692622330016257776575354105370883948495294882935681426154386660616476411740312465060150591301869544672050088454083442813632094277160007745547301572849406353682760306061929911,
-	0.2646871622087674163739641725100201179804131362950932439559895448126206429452852982016450901649805445999078728714943692622330016257776575354105370883948495294882935681426154386660616476411740312465060150591301869544672050088454083442813632094277160007745547301572849406353682760306061929911,
-	-0.3113228719902109561575126985601568835577153578680501269954571709858169098868398268719654999460149709757804582988077747605532896065842023340674450299515989484487746153929299031759475919924980452933324186984188982046762542556035347023744560814177013801414889023264804693830155588690576492164,
-	0.3113228719902109561575126985601568835577153578680501269954571709858169098868398268719654999460149709757804582988077747605532896065842023340674450299515989484487746153929299031759475919924980452933324186984188982046762542556035347023744560814177013801414889023264804693830155588690576492164,
-	-0.357220158337668115950442615046202531626264464640909112021237019340099177403802509741325589540743874845093675632547750287037622834793938695456980400958079292460482315821150714268593539935795231095157602025909339384694681190969656053235824652679875951093689200190014853543993102190088381483,
-	0.357220158337668115950442615046202531626264464640909112021237019340099177403802509741325589540743874845093675632547750287037622834793938695456980400958079292460482315821150714268593539935795231095157602025909339384694681190969656053235824652679875951093689200190014853543993102190088381483,
-	-0.4022701579639916036957667712601588487132652056150208082760431843129087214967261515969669708970990221669508217089555714806012046537594438323569293594638517933840725639831594134038262580440842200076281605641993773325072728778928440394419613403725280285705765326861533477990551765453978736181,
-	0.4022701579639916036957667712601588487132652056150208082760431843129087214967261515969669708970990221669508217089555714806012046537594438323569293594638517933840725639831594134038262580440842200076281605641993773325072728778928440394419613403725280285705765326861533477990551765453978736181,
-	-0.4463660172534640879849477147589151892067507578262501763082606820212937626970791295735937384813941473610238854736863966831464694923749954564921955859791688348936235671762050333408576202492209167272366373825152067680845198006626563761196191045700093968519269790165913301841545609485952718504,
-	0.4463660172534640879849477147589151892067507578262501763082606820212937626970791295735937384813941473610238854736863966831464694923749954564921955859791688348936235671762050333408576202492209167272366373825152067680845198006626563761196191045700093968519269790165913301841545609485952718504,
-	-0.4894031457070529574785263070219213908493732974637398373316540793240315585537584844752851087115581833443158831657759501916744927211636581386025171070582998790865902140901838128045602667002106847665927788023098753138400106615804847725751247952878407027140260429761863258319891988431055536872,
-	0.4894031457070529574785263070219213908493732974637398373316540793240315585537584844752851087115581833443158831657759501916744927211636581386025171070582998790865902140901838128045602667002106847665927788023098753138400106615804847725751247952878407027140260429761863258319891988431055536872,
-	-0.531279464019894545658013903544455247408525588734180238053268047166041778398245121448843253296460411619816073385211875151397248937264089998182375345915413219579220233566173902955487674957069948591213673456625912506280248298229907928060620469290406581396192419570799497688513058132396498814,
-	0.531279464019894545658013903544455247408525588734180238053268047166041778398245121448843253296460411619816073385211875151397248937264089998182375345915413219579220233566173902955487674957069948591213673456625912506280248298229907928060620469290406581396192419570799497688513058132396498814,
-	-0.5718956462026340342838781166591886431831910060912509932273284719418912212643223327597417735844776972648163821225207266145263395898251858906124801356522395225326954546582593857056725545247314092886133249957455688586118199388064447508712958637376347457406936802691416300157802889354368128467,
-	0.5718956462026340342838781166591886431831910060912509932273284719418912212643223327597417735844776972648163821225207266145263395898251858906124801356522395225326954546582593857056725545247314092886133249957455688586118199388064447508712958637376347457406936802691416300157802889354368128467,
-	-0.6111553551723932502488529710185489186961245593079718443367976666933088374650288148448667879830703867726577720666491772560110368248450475818132595468834493579434418252468978282181164008820769765174450056817468275783966537351796625224747700783378315186174632657840114512887287754747902924865,
-	0.6111553551723932502488529710185489186961245593079718443367976666933088374650288148448667879830703867726577720666491772560110368248450475818132595468834493579434418252468978282181164008820769765174450056817468275783966537351796625224747700783378315186174632657840114512887287754747902924865,
-	-0.6489654712546573398577612319934048855296904334732011728792502624366057598865738239773166627826358871699142531853930525866830933399401844502541092962631127742267449897116125748014270680393024011359139031312062573520509858894743036198986443014969748157931850178889912972291202354657382925509,
-	0.6489654712546573398577612319934048855296904334732011728792502624366057598865738239773166627826358871699142531853930525866830933399401844502541092962631127742267449897116125748014270680393024011359139031312062573520509858894743036198986443014969748157931850178889912972291202354657382925509,
-	-0.6852363130542332425635583710313763019356410785396718681324042749913611976548967332647625541234155413035075739348863233240851709341392873173633850612006618690218164007761541855237208605116527909791956398350719463021018362527198358286721239529091637248252469435642287693207506339068528700205,
-	0.6852363130542332425635583710313763019356410785396718681324042749913611976548967332647625541234155413035075739348863233240851709341392873173633850612006618690218164007761541855237208605116527909791956398350719463021018362527198358286721239529091637248252469435642287693207506339068528700205,
-	-0.7198818501716108268489402178319472447581380033149019526220473151184468592486433646042300919262498902882179891494724046747921544602557246455427317830132976771174504209146835854012577372395960646854355024460204286901035470812684876587693044068989973704915078171158689213412715251485203442313,
-	0.7198818501716108268489402178319472447581380033149019526220473151184468592486433646042300919262498902882179891494724046747921544602557246455427317830132976771174504209146835854012577372395960646854355024460204286901035470812684876587693044068989973704915078171158689213412715251485203442313,
-	-0.7528199072605318966118637748856939855517142713220871932461987761167722639636968539390413583009467924995905147153923286347693864945784890119950315095740891764880991728646942920208355501445550654259850385377192973526980795946453961077798744753892199929235882097232836682421729944934586281945,
-	0.7528199072605318966118637748856939855517142713220871932461987761167722639636968539390413583009467924995905147153923286347693864945784890119950315095740891764880991728646942920208355501445550654259850385377192973526980795946453961077798744753892199929235882097232836682421729944934586281945,
-	-0.7839723589433414076102205252137682840564141249898259334132759617476816578705098509357116190608002325895348207611752987335385494893726027026038902508685496606160441965948835252795524014713290879877269643684102005605450140247125536147801312017065532602835003540212221564314236937509990182173,
-	0.7839723589433414076102205252137682840564141249898259334132759617476816578705098509357116190608002325895348207611752987335385494893726027026038902508685496606160441965948835252795524014713290879877269643684102005605450140247125536147801312017065532602835003540212221564314236937509990182173,
-	-0.8132653151227975597419233380863033406981418225655972166956485149356586346082019870309280128411412936411423614767918756843380999442447282903502051218203273573634847203121451086379808399639198510674436238195505371716160648058477202993836014352158139813219612968106205248494087577632573534973,
-	0.8132653151227975597419233380863033406981418225655972166956485149356586346082019870309280128411412936411423614767918756843380999442447282903502051218203273573634847203121451086379808399639198510674436238195505371716160648058477202993836014352158139813219612968106205248494087577632573534973,
-	-0.840629296252580362751691544695873302982489823801755353928202683075593465893922171840726147868117503717663799561956411215937924134571068943700343442753760445948626598735504632170407243376224222403038093781056024445977626666740664628412660960413062370047183186652885532589557452614451434048,
-	0.840629296252580362751691544695873302982489823801755353928202683075593465893922171840726147868117503717663799561956411215937924134571068943700343442753760445948626598735504632170407243376224222403038093781056024445977626666740664628412660960413062370047183186652885532589557452614451434048,
-	-0.8659993981540928197607833850701575024125019187582496425664279511808356713122188567857456842034906362573453815878913951040194915987006979015304835979058725276345799813088989383312475641092775164460639450521468294104011206574786429237252678172922104036725327539940502197291939132802457917836,
-	0.8659993981540928197607833850701575024125019187582496425664279511808356713122188567857456842034906362573453815878913951040194915987006979015304835979058725276345799813088989383312475641092775164460639450521468294104011206574786429237252678172922104036725327539940502197291939132802457917836,
-	-0.8893154459951141058534040382728516224291944615104521893194744566084811090577722526400445910623711480590529533188832105988657269430913287263821624762648137092066620632787986348052306840101775313644572400860845559833367997001666659907951051347410546710134120144598833115095140475669485797579,
-	0.8893154459951141058534040382728516224291944615104521893194744566084811090577722526400445910623711480590529533188832105988657269430913287263821624762648137092066620632787986348052306840101775313644572400860845559833367997001666659907951051347410546710134120144598833115095140475669485797579,
-	-0.9105221370785028057563806680083298610134880848883640292531723714467102234556291968179018775780308458024302103848451312741663820589200520720207891653884985710130867134073520525932445557074805974235006810370309087879564826639263972805682465506594098949560288847385983395160311034445386606259,
-	0.9105221370785028057563806680083298610134880848883640292531723714467102234556291968179018775780308458024302103848451312741663820589200520720207891653884985710130867134073520525932445557074805974235006810370309087879564826639263972805682465506594098949560288847385983395160311034445386606259,
-	-0.9295691721319395758214901545592256073474270144297154975928116833612430986265594515998834499355844736686512805129688214992047597092114291955925880175797899765980745854426738149516325837607227287481909072315347776012991222301207304052068204069335766550173941103055407746774520789612843561385,
-	0.9295691721319395758214901545592256073474270144297154975928116833612430986265594515998834499355844736686512805129688214992047597092114291955925880175797899765980745854426738149516325837607227287481909072315347776012991222301207304052068204069335766550173941103055407746774520789612843561385,
-	-0.9464113748584028160624814913472647952793949717952331902317789712973664402149436591260928179188420533516264142755452159723722786167537167514691534968355366202934342465086995943893699962972237343218079763936958985487264411542890941861254842843026890160131607678957282346112697993618567018237,
-	0.9464113748584028160624814913472647952793949717952331902317789712973664402149436591260928179188420533516264142755452159723722786167537167514691534968355366202934342465086995943893699962972237343218079763936958985487264411542890941861254842843026890160131607678957282346112697993618567018237,
-	-0.9610087996520537189186141218971572067621146110378459494461586158623919945488992563976780806866203786216001498788310714552847469661399216303755820947005848739467276644122915754949838610353627723679982220628115164983443994552616161584523205789167087822341423097206088828267065770404672828066,
-	0.9610087996520537189186141218971572067621146110378459494461586158623919945488992563976780806866203786216001498788310714552847469661399216303755820947005848739467276644122915754949838610353627723679982220628115164983443994552616161584523205789167087822341423097206088828267065770404672828066,
-	-0.9733268277899109637418535073522726680261452944551741758819139781978152256958453749994966038154125547612207903105020176172420237675899907788807087542221018040460410464083361271842759039530092449625891215101984663282728542290395875313124045226564547294745437773482395329023327909760431499638,
-	0.9733268277899109637418535073522726680261452944551741758819139781978152256958453749994966038154125547612207903105020176172420237675899907788807087542221018040460410464083361271842759039530092449625891215101984663282728542290395875313124045226564547294745437773482395329023327909760431499638,
-	-0.9833362538846259569312993021568311169452475066237403837464872131233426128415470535606559721330818003585532628124845662897410684694651251174207713020897795837892725294581710205598344576799985346970638130204876060998657059283079767876980544166132523941283823202290746667358872631036031924711,
-	0.9833362538846259569312993021568311169452475066237403837464872131233426128415470535606559721330818003585532628124845662897410684694651251174207713020897795837892725294581710205598344576799985346970638130204876060998657059283079767876980544166132523941283823202290746667358872631036031924711,
-	-0.9910133714767443207393823834433031136413494453907904852225427459378131658644129997345108950133770434340330151289100150097018332483423277136039914249575686591612502752158650205954671083696496347591169012794322303027309768195334920157669446268175983954105533989275308193580349506657360682085,
-	0.9910133714767443207393823834433031136413494453907904852225427459378131658644129997345108950133770434340330151289100150097018332483423277136039914249575686591612502752158650205954671083696496347591169012794322303027309768195334920157669446268175983954105533989275308193580349506657360682085,
-	-0.9963401167719552793469245006763991232098575063402266121352522199507030568202208530946066801021703916301511794658310735397567341036554686814952726523955953805437164277655915410358813984246580862850974195805395101678543649116458555272523253307828290553873260588621490898443701779725568118502,
-	0.9963401167719552793469245006763991232098575063402266121352522199507030568202208530946066801021703916301511794658310735397567341036554686814952726523955953805437164277655915410358813984246580862850974195805395101678543649116458555272523253307828290553873260588621490898443701779725568118502,
-	-0.9993050417357721394569056243456363119697121916756087760628072954617646543505331997843242376462639434945376776512170265314011232493020401570891594274831367800115383317335285468800574240152992751785027563437707875403545865305271045717258142571193695943317890367167086616955235477529427992282,
-	0.9993050417357721394569056243456363119697121916756087760628072954617646543505331997843242376462639434945376776512170265314011232493020401570891594274831367800115383317335285468800574240152992751785027563437707875403545865305271045717258142571193695943317890367167086616955235477529427992282
-};
-
-static const double C[] = {
-	0.0486909570091397203833653907347499124426286922838743305086688042456914190998246107310291565645676057401607079939845156005172257043376703767287395573765236401039685866479381075274920900511719320271157129622463682509122641788910270632229694394595885032921037399187298767076084601033342936131,
-	0.0486909570091397203833653907347499124426286922838743305086688042456914190998246107310291565645676057401607079939845156005172257043376703767287395573765236401039685866479381075274920900511719320271157129622463682509122641788910270632229694394595885032921037399187298767076084601033342936131,
-	0.0485754674415034269347990667839781136875565447049294857111516761025158193093697039229163427633930410186232149083923688162761488505704450697417589593116703853157329164894580165517236877241308351214870169600093357854651930986960906313726182992933363325614247750209880050786299287510692780499,
-	0.0485754674415034269347990667839781136875565447049294857111516761025158193093697039229163427633930410186232149083923688162761488505704450697417589593116703853157329164894580165517236877241308351214870169600093357854651930986960906313726182992933363325614247750209880050786299287510692780499,
-	0.048344762234802957169769527158017809703692550609501080629442201445249828946429202156764153264348308119169811534137999799779908820312744765416129733427088646813066886130539178187597540312913636916139844188190193872629488730769015964208394624398401975043997268903006190530430762197842013971,
-	0.048344762234802957169769527158017809703692550609501080629442201445249828946429202156764153264348308119169811534137999799779908820312744765416129733427088646813066886130539178187597540312913636916139844188190193872629488730769015964208394624398401975043997268903006190530430762197842013971,
-	0.0479993885964583077281261798713460699543167134714936209446323930933335214619650277588138568504103427609283146728470455041360837549685364869161566863222680599110109210456299588352028330169041000166382937545505655464884266691630625402297821494221827392164049587946530563778771030124675514431,
-	0.0479993885964583077281261798713460699543167134714936209446323930933335214619650277588138568504103427609283146728470455041360837549685364869161566863222680599110109210456299588352028330169041000166382937545505655464884266691630625402297821494221827392164049587946530563778771030124675514431,
-	0.0475401657148303086622822069442231716408252512625387521584740318784735191312349586041971325618543660076682369564304738487584849740943805934034367382833518752314207901993991333786062812015195073547884746598535775062676699885664167707011249029305697669004958515813436770491520105115843742005,
-	0.0475401657148303086622822069442231716408252512625387521584740318784735191312349586041971325618543660076682369564304738487584849740943805934034367382833518752314207901993991333786062812015195073547884746598535775062676699885664167707011249029305697669004958515813436770491520105115843742005,
-	0.0469681828162100173253262857545810751998975284738125649829240886861900500181800807437012381630302198876925642461830694029139318555787845567143614289552410495903601238284556145544858090965965782916339169651505119399637862876053945518410353459767034026687936026945199383607112976484520939933,
-	0.0469681828162100173253262857545810751998975284738125649829240886861900500181800807437012381630302198876925642461830694029139318555787845567143614289552410495903601238284556145544858090965965782916339169651505119399637862876053945518410353459767034026687936026945199383607112976484520939933,
-	0.0462847965813144172959532492322611849696503075324468007778340818364698861774606986244241539105685321088517142947579291476238551538798963436740600968513359005801910700069462154098456091711311098901749803777735222026075473081311483686560830539773763176758567914860207820170792365910140063798,
-	0.0462847965813144172959532492322611849696503075324468007778340818364698861774606986244241539105685321088517142947579291476238551538798963436740600968513359005801910700069462154098456091711311098901749803777735222026075473081311483686560830539773763176758567914860207820170792365910140063798,
-	0.0454916279274181444797709969712690588873234618023998968168834081606504637618082102750954507142497706775055424364453740562113890878382679420378787427100982909191308430750899201141096789461078632697297091763378573830284133736378128577579722120264252594541491899441765769262904055702701625378,
-	0.0454916279274181444797709969712690588873234618023998968168834081606504637618082102750954507142497706775055424364453740562113890878382679420378787427100982909191308430750899201141096789461078632697297091763378573830284133736378128577579722120264252594541491899441765769262904055702701625378,
-	0.0445905581637565630601347100309448432940237999912217256432193286861948363377761089569585678875932857237669096941854082976565514031401996407675401022860761183118504326746863327792604337217763335682212515058414863183914930810334329596384915832703655935958010948424747251920190851700662833367,
-	0.0445905581637565630601347100309448432940237999912217256432193286861948363377761089569585678875932857237669096941854082976565514031401996407675401022860761183118504326746863327792604337217763335682212515058414863183914930810334329596384915832703655935958010948424747251920190851700662833367,
-	0.0435837245293234533768278609737374809227888974971180150532193925502569499020021803936448815937567079991401855477391110804568848623412043870399620479222000249538880795788245633051476595555730388360811011823841525667998427392843673284072004068821750061964976796287623004834501604656318714989,
-	0.0435837245293234533768278609737374809227888974971180150532193925502569499020021803936448815937567079991401855477391110804568848623412043870399620479222000249538880795788245633051476595555730388360811011823841525667998427392843673284072004068821750061964976796287623004834501604656318714989,
-	0.0424735151236535890073397679088173661655466481806496697314607722055245433487169327182398988553670128358787507582463602377168227019625334754497484024668087975720049504975593281010888062806587161032924284354938115463233015024659299046001504100674918329532481611571863222497170398830691222425,
-	0.0424735151236535890073397679088173661655466481806496697314607722055245433487169327182398988553670128358787507582463602377168227019625334754497484024668087975720049504975593281010888062806587161032924284354938115463233015024659299046001504100674918329532481611571863222497170398830691222425,
-	0.0412625632426235286101562974736380477399306355305474105429034779122704951178045914463267035032832336161816547420067160277921114474557623647771372636679857599931025531633255548770293397336318597716427093310378312957479805159734598610664983115148350548735211568465338522875618805992499897174,
-	0.0412625632426235286101562974736380477399306355305474105429034779122704951178045914463267035032832336161816547420067160277921114474557623647771372636679857599931025531633255548770293397336318597716427093310378312957479805159734598610664983115148350548735211568465338522875618805992499897174,
-	0.0399537411327203413866569261283360739186769506703336301114037026981570543670430333260307390357287606111017588757685176701688554806178713759519003171090525332423003042251947304213502522332118258365256241174986409729902714098049024753746340158430732115642207673265332738358717839602955875715,
-	0.0399537411327203413866569261283360739186769506703336301114037026981570543670430333260307390357287606111017588757685176701688554806178713759519003171090525332423003042251947304213502522332118258365256241174986409729902714098049024753746340158430732115642207673265332738358717839602955875715,
-	0.0385501531786156291289624969468089910127871122017180319662378854088005271323682681394418540442928363090545214563022868422017877042243007014244875098498616146404178795110038170109976252865902624380463581094085479557660525450020049773872343621719025128277593787164021147974906095237533202082,
-	0.0385501531786156291289624969468089910127871122017180319662378854088005271323682681394418540442928363090545214563022868422017877042243007014244875098498616146404178795110038170109976252865902624380463581094085479557660525450020049773872343621719025128277593787164021147974906095237533202082,
-	0.0370551285402400460404151018095833750834649453056563021747536272028091562122966687178302646649066832960609370472485057031765338738734008482025086366647963664178752038995704175623165041724901843573087856883034472545386037691055680911138721623610172486110313241291773258491882452773847899443,
-	0.0370551285402400460404151018095833750834649453056563021747536272028091562122966687178302646649066832960609370472485057031765338738734008482025086366647963664178752038995704175623165041724901843573087856883034472545386037691055680911138721623610172486110313241291773258491882452773847899443,
-	0.0354722132568823838106931467152459479480946310024100946926514848199381113651392962399922996268087884509143420993419937430515415557908457195618550238075571721209638845910166697234073788332647695349442265578792857058786796417110738673392400570019770741873271724201517438135222598792344040215,
-	0.0354722132568823838106931467152459479480946310024100946926514848199381113651392962399922996268087884509143420993419937430515415557908457195618550238075571721209638845910166697234073788332647695349442265578792857058786796417110738673392400570019770741873271724201517438135222598792344040215,
-	0.0338051618371416093915654821107254310210499263140045346675500650400323727745785853730452808963944098691936344225349051741060036935288424090581463711756382878498537611980973238606529148664990420534952057130296232922368792280098852092993207644225150541876980292972087619863453425206929192216,
-	0.0338051618371416093915654821107254310210499263140045346675500650400323727745785853730452808963944098691936344225349051741060036935288424090581463711756382878498537611980973238606529148664990420534952057130296232922368792280098852092993207644225150541876980292972087619863453425206929192216,
-	0.032057928354851553585467504347898716966221573881398062250169407854535275399124366530227987935629046729162364779969274126431870966979526186907589490002269660893281421728773647001279141626157958271220102615163092206489916992120482595587916535390136003611498634162765724522022671474313619317,
-	0.032057928354851553585467504347898716966221573881398062250169407854535275399124366530227987935629046729162364779969274126431870966979526186907589490002269660893281421728773647001279141626157958271220102615163092206489916992120482595587916535390136003611498634162765724522022671474313619317,
-	0.030234657072402478867974059819548659158281397768481241636026542045969161851838118212761980885178641520596873511042783163461341979185470882574743804555268086640389062237383427702813367624714014426121485626242067362445894463989335423458464954799181190120473168677930333898873084606011285311,
-	0.030234657072402478867974059819548659158281397768481241636026542045969161851838118212761980885178641520596873511042783163461341979185470882574743804555268086640389062237383427702813367624714014426121485626242067362445894463989335423458464954799181190120473168677930333898873084606011285311,
-	0.0283396726142594832275113052002373519812075841257543359907955185084500175712880712901834579816476269393013386531176072296695948860841466158639973753393323262188023471133258509422081952937349849822864752636994881600343083839805990853930436233762729622213044478376753949590318846038229829528,
-	0.0283396726142594832275113052002373519812075841257543359907955185084500175712880712901834579816476269393013386531176072296695948860841466158639973753393323262188023471133258509422081952937349849822864752636994881600343083839805990853930436233762729622213044478376753949590318846038229829528,
-	0.0263774697150546586716917926252251856755993308422457184496156736853021592428967790284780487213653480867620409279447766944383920384284787790772384251090745670478105870527396429136326932261251511732466974897397268573168068852344129736214469830280087710575094607457344820944885011053938108899,
-	0.0263774697150546586716917926252251856755993308422457184496156736853021592428967790284780487213653480867620409279447766944383920384284787790772384251090745670478105870527396429136326932261251511732466974897397268573168068852344129736214469830280087710575094607457344820944885011053938108899,
-	0.0243527025687108733381775504090689876499784155133784119819985685535536787083770723737264828464464223276155821319330210193549896426801083040150047332857692873011433649334477370145389017577189505240415125600908800786897201425473757275187332157593198572919772969833130729981971352463730545469,
-	0.0243527025687108733381775504090689876499784155133784119819985685535536787083770723737264828464464223276155821319330210193549896426801083040150047332857692873011433649334477370145389017577189505240415125600908800786897201425473757275187332157593198572919772969833130729981971352463730545469,
-	0.0222701738083832541592983303841550024229592905997594051455205429744914460867081990116647982811451138592401156680063927909718825845915896692701716212710541472344073624315399429951255221519263275095347974129106415903376085208797420439500915674568159744176912567285070988940509294826076696882,
-	0.0222701738083832541592983303841550024229592905997594051455205429744914460867081990116647982811451138592401156680063927909718825845915896692701716212710541472344073624315399429951255221519263275095347974129106415903376085208797420439500915674568159744176912567285070988940509294826076696882,
-	0.0201348231535302093723403167285438970895266801007919519220072343276769828211923597982299498416998597995443052252531684909219367615574440281549241161294448697202959593344989612626641188010558013085389491205901106884167596038790695150496733123662891637942237462337673353651179115491957031948,
-	0.0201348231535302093723403167285438970895266801007919519220072343276769828211923597982299498416998597995443052252531684909219367615574440281549241161294448697202959593344989612626641188010558013085389491205901106884167596038790695150496733123662891637942237462337673353651179115491957031948,
-	0.0179517157756973430850453020011193688971673570364158572977184273569247295870620984743089140579199272107974903016785911970727080884655646148340637373001805876560334052431930062983734905886704331100259778249929425439377011315288821865303197904492848823994202996722656114004109123107733596987,
-	0.0179517157756973430850453020011193688971673570364158572977184273569247295870620984743089140579199272107974903016785911970727080884655646148340637373001805876560334052431930062983734905886704331100259778249929425439377011315288821865303197904492848823994202996722656114004109123107733596987,
-	0.0157260304760247193219659952975397944260290098431565121528943932284210502164124556525745628476326997189475680077625258949765335021586482683126547283634704087193102431454662772463321304938516661086261262080252305539171654570677889578063634007609097342035360186636479612243231917699790225637,
-	0.0157260304760247193219659952975397944260290098431565121528943932284210502164124556525745628476326997189475680077625258949765335021586482683126547283634704087193102431454662772463321304938516661086261262080252305539171654570677889578063634007609097342035360186636479612243231917699790225637,
-	0.0134630478967186425980607666859556841084257719773496708184682785221983598894666268489697837056105038485845901773961664652581563686185523959473293683490869846700009741156668864960127745507806046701586435579547632680339906665338521813319281296935586498194608460412423723103161161922347608637,
-	0.0134630478967186425980607666859556841084257719773496708184682785221983598894666268489697837056105038485845901773961664652581563686185523959473293683490869846700009741156668864960127745507806046701586435579547632680339906665338521813319281296935586498194608460412423723103161161922347608637,
-	0.011168139460131128818590493019208135072778797816827287215251362273969701224836131369547661822970774719521543690039908073147476182135228738610704246958518755712518444434075738269866120460156365855324768445411463643114925829148750923090201475035559533993035986264487097245733097728698218563,
-	0.011168139460131128818590493019208135072778797816827287215251362273969701224836131369547661822970774719521543690039908073147476182135228738610704246958518755712518444434075738269866120460156365855324768445411463643114925829148750923090201475035559533993035986264487097245733097728698218563,
-	0.0088467598263639477230309146597306476951762660792204997984715769296110380005985367341694286322550520156167431790573509593010611842062630262878798782558974712042810219159674181580449655112696028911646066461502678711637780164986283350190669684468398617127841853445303466680698660632269500149,
-	0.0088467598263639477230309146597306476951762660792204997984715769296110380005985367341694286322550520156167431790573509593010611842062630262878798782558974712042810219159674181580449655112696028911646066461502678711637780164986283350190669684468398617127841853445303466680698660632269500149,
-	0.0065044579689783628561173603999812667711317610549523400952448792575685125717613068203530526491113296049409911387320826711045787146267036866881961532403342811327869183281273743976710008917886491097375367147212074243884772614562628844975421736416404173672075979097191581386023407454532945934,
-	0.0065044579689783628561173603999812667711317610549523400952448792575685125717613068203530526491113296049409911387320826711045787146267036866881961532403342811327869183281273743976710008917886491097375367147212074243884772614562628844975421736416404173672075979097191581386023407454532945934,
-	0.0041470332605624676352875357285514153133028192536848024628763661431834776690157393776820933106187137592011723199002845429836606307797425496666456172753165824787973801175029578301513761259541022471768825518482406145696380621686627285992715643614469568410535180218496973657001203470470418364,
-	0.0041470332605624676352875357285514153133028192536848024628763661431834776690157393776820933106187137592011723199002845429836606307797425496666456172753165824787973801175029578301513761259541022471768825518482406145696380621686627285992715643614469568410535180218496973657001203470470418364,
-	0.0017832807216964329472960791449719331799593472719279556695308063655858546954239803486698215802150348282744786016134857283616955449868451969230490863774274598030023211055562492709717566919237924255297982774711177411074145151155610163293142044147991553384925940046957893721166251082473659733,
-	0.0017832807216964329472960791449719331799593472719279556695308063655858546954239803486698215802150348282744786016134857283616955449868451969230490863774274598030023211055562492709717566919237924255297982774711177411074145151155610163293142044147991553384925940046957893721166251082473659733
-};
-#else
-/* n = 32 */
-
-static double T[] = {
-	-0.0483076656877383162348125704405021636908472517308488971677937345463685926042778777794060365911173780988289503411375793689757446357461295741679964108035347980667582792392651327368009453047606446744575790523465655622949909588624860214137051585425884056992683442137333250625173849291299678673,
-	0.0483076656877383162348125704405021636908472517308488971677937345463685926042778777794060365911173780988289503411375793689757446357461295741679964108035347980667582792392651327368009453047606446744575790523465655622949909588624860214137051585425884056992683442137333250625173849291299678673,
-	-0.1444719615827964934851863735988106522038459913156355521379528938242184438164519731102406769974924713989580220758441301598578946580142268413547299935841673092513202403499286272686350814272974392746706128556678811982653393383080797337231702069432462445053984587997153683967433095128570624414,
-	0.1444719615827964934851863735988106522038459913156355521379528938242184438164519731102406769974924713989580220758441301598578946580142268413547299935841673092513202403499286272686350814272974392746706128556678811982653393383080797337231702069432462445053984587997153683967433095128570624414,
-	-0.2392873622521370745446032091655015206088554219602530155470960995597029133039943915553593695844147813728958071901224632260145752503694970545640339873418480550362677768010887468668377893757173424222709744116861683634989914911762187599464033126988486345234374380695224452457957624756811128321,
-	0.2392873622521370745446032091655015206088554219602530155470960995597029133039943915553593695844147813728958071901224632260145752503694970545640339873418480550362677768010887468668377893757173424222709744116861683634989914911762187599464033126988486345234374380695224452457957624756811128321,
-	-0.3318686022821276497799168057301879961957751368050598360182296306285376829657438169809731852312743263005943551508559377834274303920771100489026913715847854727626540340157368609696698131829681988642689780208633461925468064919389286805624602715005948661328152252049795463242055567997437182143,
-	0.3318686022821276497799168057301879961957751368050598360182296306285376829657438169809731852312743263005943551508559377834274303920771100489026913715847854727626540340157368609696698131829681988642689780208633461925468064919389286805624602715005948661328152252049795463242055567997437182143,
-	-0.4213512761306353453641194361724264783358772886324433305416613404557190462549837315607633055675740638739884093394574651160978879545562247406839036854173715776910866941643197988581928900702286425821151586000969947406313405310082646561917980302543820974679501841964453794193724645925031841919,
-	0.4213512761306353453641194361724264783358772886324433305416613404557190462549837315607633055675740638739884093394574651160978879545562247406839036854173715776910866941643197988581928900702286425821151586000969947406313405310082646561917980302543820974679501841964453794193724645925031841919,
-	-0.5068999089322293900237474743778212301802836995994354639743662809707712640478764442266190213124522047999876916596854537447047905434649918210338296049592120273725464263651562560829050004258268002241145951271730860506703690843719936432852920782304931272053564539127514959875734718036950073563,
-	0.5068999089322293900237474743778212301802836995994354639743662809707712640478764442266190213124522047999876916596854537447047905434649918210338296049592120273725464263651562560829050004258268002241145951271730860506703690843719936432852920782304931272053564539127514959875734718036950073563,
-	-0.5877157572407623290407454764018268584509401154544205727031788473129228586684474311408145102018661764979429510790747919023774933113319119601088669936958908618326367715806216053155906936017362413244183150445492317940727345571648726363597097311647731726438279098059670236086983675374932643925,
-	0.5877157572407623290407454764018268584509401154544205727031788473129228586684474311408145102018661764979429510790747919023774933113319119601088669936958908618326367715806216053155906936017362413244183150445492317940727345571648726363597097311647731726438279098059670236086983675374932643925,
-	-0.6630442669302152009751151686632383689770222859605053010170834964924461749232229404368981536611965356686820332804126742949900731319113817214392193185613161549689934301410316417342588149871686184296988807305719690974644891055567340650986465615021143958920599684258616066247948224049997371166,
-	0.6630442669302152009751151686632383689770222859605053010170834964924461749232229404368981536611965356686820332804126742949900731319113817214392193185613161549689934301410316417342588149871686184296988807305719690974644891055567340650986465615021143958920599684258616066247948224049997371166,
-	-0.732182118740289680387426665091267146630270483506629100821139573270385253587797727611292298988652560055905228466313310601075333829094630570926240639601009902567982815376254840388565733846030450161774620971196087756484387383432502715118096615117242484073636640563609696801484680439912327302,
-	0.732182118740289680387426665091267146630270483506629100821139573270385253587797727611292298988652560055905228466313310601075333829094630570926240639601009902567982815376254840388565733846030450161774620971196087756484387383432502715118096615117242484073636640563609696801484680439912327302,
-	-0.7944837959679424069630972989704289020954794016388354532507582449720593922816426654241878967890821228397041480126630294067578180914548706957761322921470535094589673860419616615738928385807346185892317514562489971543238450942224396667500582904031225063621511429185567036727089257387570529468,
-	0.7944837959679424069630972989704289020954794016388354532507582449720593922816426654241878967890821228397041480126630294067578180914548706957761322921470535094589673860419616615738928385807346185892317514562489971543238450942224396667500582904031225063621511429185567036727089257387570529468,
-	-0.849367613732569970133693004967742538954886793049759233100219598613724656141562558741881463752754991143937635778596582088915769685796612254240615386941355933272723068952531445772190363422003834495043219316062885999846179078139659341918527603834809670576387535564876596379488780285979062125,
-	0.849367613732569970133693004967742538954886793049759233100219598613724656141562558741881463752754991143937635778596582088915769685796612254240615386941355933272723068952531445772190363422003834495043219316062885999846179078139659341918527603834809670576387535564876596379488780285979062125,
-	-0.8963211557660521239653072437192122684789964967957595765636154129650249794910409173494503783167666654202705333374285522819507600044591355080910768854012859468015827508424619812224062460791781333400979810176198916239783226706506012473250929962326307746466256167673927887144428859779028909399,
-	0.8963211557660521239653072437192122684789964967957595765636154129650249794910409173494503783167666654202705333374285522819507600044591355080910768854012859468015827508424619812224062460791781333400979810176198916239783226706506012473250929962326307746466256167673927887144428859779028909399,
-	-0.9349060759377396891709191348354093255286714322828372184584037398118161947182932855418880831417927728359606280450921427988850058691931014887248988124656348299653052688344696135840215712191162135178273756415771123010111796122671724143565383396162107206772781551029308751511942924942333859805,
-	0.9349060759377396891709191348354093255286714322828372184584037398118161947182932855418880831417927728359606280450921427988850058691931014887248988124656348299653052688344696135840215712191162135178273756415771123010111796122671724143565383396162107206772781551029308751511942924942333859805,
-	-0.9647622555875064307738119281182749603888952204430187193220113218370995254867038008243801877562227002840740910741483519987441236283464394249183812395373150090695515823078220949436846111682404866338388944248976976566275875721000356873959697266702651250019105084704924793016185368873243713355,
-	0.9647622555875064307738119281182749603888952204430187193220113218370995254867038008243801877562227002840740910741483519987441236283464394249183812395373150090695515823078220949436846111682404866338388944248976976566275875721000356873959697266702651250019105084704924793016185368873243713355,
-	-0.9856115115452683354001750446309019786323957143358063182107821705820305847193755946663846485510970266115353839862364606643634021712823093784875255943834038377710426488328772047833289470320023596895438028281274741367781028592272459887917924171204666683239464005128153533797603112851826904814,
-	0.9856115115452683354001750446309019786323957143358063182107821705820305847193755946663846485510970266115353839862364606643634021712823093784875255943834038377710426488328772047833289470320023596895438028281274741367781028592272459887917924171204666683239464005128153533797603112851826904814,
-	-0.9972638618494815635449811286650407271385376637294611593011185457862359083917418520130456693085426416474280482200936551645510686196373231416035137741332968299789863385253514914078766236061488136738023162574655835389902337937054326098485227311719825229066712510246574949376367552421728646398,
-	0.9972638618494815635449811286650407271385376637294611593011185457862359083917418520130456693085426416474280482200936551645510686196373231416035137741332968299789863385253514914078766236061488136738023162574655835389902337937054326098485227311719825229066712510246574949376367552421728646398
-};
-
-static double C[] = {
-	0.0965400885147278005667648300635757947368606312355700687323182099577497758679466512968173871061464644599963197828969869820251559172455698832434930732077927850876632725829187045819145660710266452161095406358159608874152584850413283587913891015545638518881205600825069096855488296437485836866,
-	0.0965400885147278005667648300635757947368606312355700687323182099577497758679466512968173871061464644599963197828969869820251559172455698832434930732077927850876632725829187045819145660710266452161095406358159608874152584850413283587913891015545638518881205600825069096855488296437485836866,
-	0.0956387200792748594190820022041311005948905081620055509529898509437067444366006256133614167190847508238474888230077112990752876436158047205555474265705582078453283640212465537132165041268773645168746774530146140911679782502276289938840330631903789120176765314495900053061764438990021439069,
-	0.0956387200792748594190820022041311005948905081620055509529898509437067444366006256133614167190847508238474888230077112990752876436158047205555474265705582078453283640212465537132165041268773645168746774530146140911679782502276289938840330631903789120176765314495900053061764438990021439069,
-	0.0938443990808045656391802376681172600361000757462364500506275696355695118623098075097804207682530277555307864917078828352419853248607668520631751470962234105835015158485760721979732297206950719908744248285672032436598213262204039212897239890934116841559005147755270269705682414708355646603,
-	0.0938443990808045656391802376681172600361000757462364500506275696355695118623098075097804207682530277555307864917078828352419853248607668520631751470962234105835015158485760721979732297206950719908744248285672032436598213262204039212897239890934116841559005147755270269705682414708355646603,
-	0.0911738786957638847128685771116370625448614132753900053231278739777031520613017513597426417145878622654027367650308019870251963114683369110451524174258161390823876554910693202594383388549640738095422966058367070348943662290656339592299608558384147559830707904449930677260444604329157917977,
-	0.0911738786957638847128685771116370625448614132753900053231278739777031520613017513597426417145878622654027367650308019870251963114683369110451524174258161390823876554910693202594383388549640738095422966058367070348943662290656339592299608558384147559830707904449930677260444604329157917977,
-	0.0876520930044038111427714627518022875484497217017572223192228034747061150211380239263021665771581379364685191248848158059408000065275041643745927401342920150588893827207354226012701872322225514682178439577327346929209121046816487338309068375228210705166692551938339727096609740531893725675,
-	0.0876520930044038111427714627518022875484497217017572223192228034747061150211380239263021665771581379364685191248848158059408000065275041643745927401342920150588893827207354226012701872322225514682178439577327346929209121046816487338309068375228210705166692551938339727096609740531893725675,
-	0.0833119242269467552221990746043486115387468839428344598401864047287594069244380966536255650452315042012372905572506028852130723585016898197140339352228963465326746426938359210160503509807644396182380868089959855742801355208471205261406307895519604387550841954817025499019984032594036141439,
-	0.0833119242269467552221990746043486115387468839428344598401864047287594069244380966536255650452315042012372905572506028852130723585016898197140339352228963465326746426938359210160503509807644396182380868089959855742801355208471205261406307895519604387550841954817025499019984032594036141439,
-	0.078193895787070306471740918828306671039786798482159190307481553869493700115196435401943819761440851294456424770323467367505109006517482028994114252939401250416132320553639542341400437522236191275346323130525969269563653003188829786549728825182082678498917784036375053244425839341945385297,
-	0.078193895787070306471740918828306671039786798482159190307481553869493700115196435401943819761440851294456424770323467367505109006517482028994114252939401250416132320553639542341400437522236191275346323130525969269563653003188829786549728825182082678498917784036375053244425839341945385297,
-	0.0723457941088485062253993564784877916043369833018248707397632823511765345816800402874475958591657429073027694582930574378890633404841054620298756279975430795706338162404545590689277985270140590721779502609564199074051863640176937117952488466002340085264819537808079947788437998042296495822,
-	0.0723457941088485062253993564784877916043369833018248707397632823511765345816800402874475958591657429073027694582930574378890633404841054620298756279975430795706338162404545590689277985270140590721779502609564199074051863640176937117952488466002340085264819537808079947788437998042296495822,
-	0.0658222227763618468376500637069387728775364473732465153710916696852412442018627316280044447764609054151761388378861151807154113495715653711918644796313239555117970398473141615070299152284100887258072240524028885129828725430021172354299810423059697133688823072212214503334259555369485963074,
-	0.0658222227763618468376500637069387728775364473732465153710916696852412442018627316280044447764609054151761388378861151807154113495715653711918644796313239555117970398473141615070299152284100887258072240524028885129828725430021172354299810423059697133688823072212214503334259555369485963074,
-	0.0586840934785355471452836373001708867501204674575467587150032786132877518019090643743123653437052116901895704813134467814193905269714480573030647540887991405215103758723074481312705449946311993670933802369300463315125015975216910705047901943865293781921122370996257470349807212516159332678,
-	0.0586840934785355471452836373001708867501204674575467587150032786132877518019090643743123653437052116901895704813134467814193905269714480573030647540887991405215103758723074481312705449946311993670933802369300463315125015975216910705047901943865293781921122370996257470349807212516159332678,
-	0.0509980592623761761961632446895216952601847767397628437069071236525030510385137821267442193868358292147899714519363571211100873456269865150186456681043804358654826791768545393024953758025593924464295555854744882720755747096079325496814455853004350452095212995888025282619932613606999567133,
-	0.0509980592623761761961632446895216952601847767397628437069071236525030510385137821267442193868358292147899714519363571211100873456269865150186456681043804358654826791768545393024953758025593924464295555854744882720755747096079325496814455853004350452095212995888025282619932613606999567133,
-	0.0428358980222266806568786466061255284928108575989407395620219408911043916962572261359138025961596979511472539467367407419206021900868371610612953162236233351132214438513203223655531564777278515080476421262443325932320214191168239648611793958596884827086182431203349730049744697408543115307,
-	0.0428358980222266806568786466061255284928108575989407395620219408911043916962572261359138025961596979511472539467367407419206021900868371610612953162236233351132214438513203223655531564777278515080476421262443325932320214191168239648611793958596884827086182431203349730049744697408543115307,
-	0.0342738629130214331026877322523727069948402029116274337814057454192310522168984446294442724624445760666244242305266023810860790282088335398182296698622433517061843276344829146573593201201081743714879684153735672789104567624853712011151505225193933019375481618760594889854480408562043658635,
-	0.0342738629130214331026877322523727069948402029116274337814057454192310522168984446294442724624445760666244242305266023810860790282088335398182296698622433517061843276344829146573593201201081743714879684153735672789104567624853712011151505225193933019375481618760594889854480408562043658635,
-	0.0253920653092620594557525897892240292875540475469487209362512822192154788532376645960457016338988332029324531233401833547954942765653767672102838323550828207273795044402516181251040411735351747299230615776597356956641506445501689924551185923348003766988424170511157069264716719906995309826,
-	0.0253920653092620594557525897892240292875540475469487209362512822192154788532376645960457016338988332029324531233401833547954942765653767672102838323550828207273795044402516181251040411735351747299230615776597356956641506445501689924551185923348003766988424170511157069264716719906995309826,
-	0.0162743947309056706051705622063866181795429637952095664295931749613369651752917857651844425586692833071042366002861684552859449530958901379260437604156888337987656773068694383447504913457771896770689760342192010638946676879735404121702279005140285599424477022083127753774756520463311689155,
-	0.0162743947309056706051705622063866181795429637952095664295931749613369651752917857651844425586692833071042366002861684552859449530958901379260437604156888337987656773068694383447504913457771896770689760342192010638946676879735404121702279005140285599424477022083127753774756520463311689155,
-	0.0070186100094700966004070637388531825133772207289396032320082356192151241454178686953297376907573215077936155545790593837513204206518026084505878987243348925784479817181234617862457418214505322067610482902501455504204433524520665822704844582452877416001060465891907497519632353148380799619,
-	0.0070186100094700966004070637388531825133772207289396032320082356192151241454178686953297376907573215077936155545790593837513204206518026084505878987243348925784479817181234617862457418214505322067610482902501455504204433524520665822704844582452877416001060465891907497519632353148380799619
-};
-
-#endif

gsk/gskcurveprivate.h

@@ -33,7 +33,6 @@ typedef union _GskCurve GskCurve;
 typedef struct _GskLineCurve GskLineCurve;
 typedef struct _GskQuadCurve GskQuadCurve;
 typedef struct _GskCubicCurve GskCubicCurve;
-typedef struct _GskConicCurve GskConicCurve;
 
 struct _GskLineCurve
 {
@@ -66,28 +65,12 @@ struct _GskCubicCurve
   graphene_point_t coeffs[4];
 };
 
-struct _GskConicCurve
-{
-  GskPathOperation op;
-
-  gboolean has_coefficients;
-
-  /* points[0], points[1], points[3] are the control points,
-   * points[2].x is the weight
-   */
-  graphene_point_t points[4];
-
-  graphene_point_t num[3];
-  graphene_point_t denom[3];
-};
-
 union _GskCurve
 {
   GskPathOperation op;
   GskLineCurve line;
   GskQuadCurve quad;
   GskCubicCurve cubic;
-  GskConicCurve conic;
 };
 
 typedef enum {
@@ -102,9 +85,9 @@ typedef gboolean (* GskCurveAddLineFunc) (const graphene_point_t *from,
                                           GskCurveLineReason      reason,
                                           gpointer                user_data);
 
-typedef gboolean (* GskCurveAddCurveFunc) (const graphene_point_t *start,
-                                           const graphene_point_t *end,
-                                           const GskPathControl   *control,
+typedef gboolean (* GskCurveAddCurveFunc) (GskPathOperation        op,
+                                           const graphene_point_t *pts,
+                                           gsize                   n_pts,
                                            gpointer                user_data);
 
 void                    gsk_curve_init                          (GskCurve               *curve,
@@ -112,8 +95,7 @@ void                    gsk_curve_init                          (GskCurve
 void                    gsk_curve_init_foreach                  (GskCurve               *curve,
                                                                  GskPathOperation        op,
                                                                  const graphene_point_t *pts,
-                                                                 gsize                   n_pts,
-                                                                 float                   weight);
+                                                                 gsize                   n_pts);
 
 void                    gsk_curve_print                         (const GskCurve         *curve,
                                                                  GString                *string);
@@ -163,9 +145,6 @@ void                    gsk_curve_get_bounds                    (const GskCurve
 void                    gsk_curve_get_tight_bounds              (const GskCurve         *curve,
                                                                  GskBoundingBox         *bounds);
 
-void                    gsk_curve_get_derivative_at             (const GskCurve         *curve,
-                                                                 float                   t,
-                                                                 graphene_point_t       *value);
 int                     gsk_curve_get_crossing                  (const GskCurve         *curve,
                                                                  const graphene_point_t *point);
 gboolean                gsk_curve_get_closest_point             (const GskCurve         *curve,
@@ -173,16 +152,6 @@ gboolean                gsk_curve_get_closest_point             (const GskCurve
                                                                  float                   threshold,
                                                                  float                  *out_dist,
                                                                  float                  *out_t);
-float                  gsk_curve_get_length                     (const GskCurve         *curve);
-float                  gsk_curve_get_length_to                  (const GskCurve         *curve,
-                                                                 float                   t);
-float                  gsk_curve_at_length                      (const GskCurve         *curve,
-                                                                 float                   distance,
-                                                                 float                   epsilon);
-
-int                    gsk_curve_get_curvature_points           (const GskCurve *        curve,
-                                                                 float                   t[3]);
-
 
 G_END_DECLS
 

gsk/gskenums.h

@@ -1,5 +1,5 @@
 /* GSK - The GTK Scene Kit
- * Copyright 2016  Endless
+ * Copyright 2016  Endless 
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
@@ -42,6 +42,8 @@
  * @GSK_REPEAT_NODE: A node that repeats the child's contents
  * @GSK_CLIP_NODE: A node that clips its child to a rectangular area
  * @GSK_ROUNDED_CLIP_NODE: A node that clips its child to a rounded rectangle
+ * @GSK_FILL_NODE: A node that fills a path
+ * @GSK_STROKE_NODE: A node that strokes a path
  * @GSK_SHADOW_NODE: A node that draws a shadow below its child
  * @GSK_BLEND_NODE: A node that blends two children together
  * @GSK_CROSS_FADE_NODE: A node that cross-fades between two children
@@ -51,9 +53,7 @@
  * @GSK_GL_SHADER_NODE: A node that uses OpenGL fragment shaders to render
  * @GSK_TEXTURE_SCALE_NODE: A node drawing a `GdkTexture` scaled and filtered (Since: 4.10)
  * @GSK_MASK_NODE: A node that masks one child with another (Since: 4.10)
- * @GSK_FILL_NODE: A node that fills a path
- * @GSK_STROKE_NODE: A node that strokes a path
-
+ 
  * The type of a node determines what the node is rendering.
  */
 typedef enum {
@@ -76,6 +76,8 @@ typedef enum {
   GSK_REPEAT_NODE,
   GSK_CLIP_NODE,
   GSK_ROUNDED_CLIP_NODE,
+  GSK_FILL_NODE,
+  GSK_STROKE_NODE,
   GSK_SHADOW_NODE,
   GSK_BLEND_NODE,
   GSK_CROSS_FADE_NODE,
@@ -84,9 +86,7 @@ typedef enum {
   GSK_DEBUG_NODE,
   GSK_GL_SHADER_NODE,
   GSK_TEXTURE_SCALE_NODE,
-  GSK_MASK_NODE,
-  GSK_FILL_NODE,
-  GSK_STROKE_NODE
+  GSK_MASK_NODE
 } GskRenderNodeType;
 
 /**
@@ -222,14 +222,6 @@ typedef enum {
  *
  * New entries may be added in future versions.
  *
- * <figure>
- *   <picture>
- *     <source srcset="caps-dark.png" media="(prefers-color-scheme: dark)">
- *     <img alt="Line Cap Styles" src="caps-light.png">
- *   </picture>
- *   <figcaption>GSK_LINE_CAP_BUTT, GSK_LINE_CAP_ROUND, GSK_LINE_CAP_SQUARE</figcaption>
- * </figure>
- *
  * Since: 4.14
  */
 typedef enum {
@@ -252,14 +244,6 @@ typedef enum {
  *
  * New entries may be added in future versions.
  *
- * <figure>
- *   <picture>
- *     <source srcset="join-dark.png" media="(prefers-color-scheme: dark)">
- *     <img alt="Line Join Styles" src="join-light.png">
- *   </picture>
- *   <figcaption>GSK_LINE_JOINT_MITER, GSK_LINE_JOINT_ROUND, GSK_LINE_JOIN_BEVEL</figcaption>
- * </figure>
- *
  * Since: 4.14
  */
 typedef enum {
@@ -281,11 +265,8 @@ typedef enum {
  * @GSK_PATH_CUBIC: A curve-to operation describing a cubic Bézier curve with 4
  *   points describing the start point, the two control points and the end point
  *   of the curve.
- * @GSK_PATH_CONIC: A rational quadratic Bézier curve with 3 points describing
- *   the start point, control point and end point of the curve. A weight for the
- *   curve will be passed, too.
  *
- * Path operations are used to describe the segments of a `GskPath`.
+ * Path operations are used to described segments of a `GskPath`.
  *
  * More values may be added in the future.
  *
@@ -297,39 +278,21 @@ typedef enum {
   GSK_PATH_LINE,
   GSK_PATH_QUAD,
   GSK_PATH_CUBIC,
-  GSK_PATH_CONIC,
 } GskPathOperation;
 
 /**
  * GskPathDirection:
- * @GSK_PATH_FROM_START: The tangent in path direction of the incoming side
- *   of the path
- * @GSK_PATH_TO_START: The tangent against path direction of the incoming side
- *   of the path
- * @GSK_PATH_TO_END: The tangent in path direction of the outgoing side
- *   of the path
- * @GSK_PATH_FROM_END: The tangent against path direction of the outgoing
- *   side of the path
+ * @GSK_PATH_START: The side that leads to the start of the path
+ * @GSK_PATH_END: The side that leads to the end of the path
  *
  * The values of the `GskPathDirection` enum are used to pick one
- * of the four tangents at a given point on the path.
- *
- * Note that the directions for @GSK_PATH_FROM_START/@GSK_PATH_TO_END and
- * @GSK_PATH_TO_START/@GSK_PATH_FROM_END will coincide for smooth points.
- * Only sharp turns will exhibit four different directions.
- *
- * <picture>
- *   <source srcset="directions-dark.png" media="(prefers-color-scheme: dark)">
- *   <img alt="Path Tangents" src="directions-light.png">
- * </picture>
+ * of the two sides of the path that at a given point on the path.
  *
  * Since: 4.14
  */
 typedef enum {
-  GSK_PATH_FROM_START,
-  GSK_PATH_TO_START,
-  GSK_PATH_TO_END,
-  GSK_PATH_FROM_END,
+  GSK_PATH_START,
+  GSK_PATH_END
 } GskPathDirection;
 
 /**

gsk/gskpath.c

@@ -30,26 +30,18 @@
  * GskPath:
  *
  * A `GskPath` describes lines and curves that are more complex
- * than simple rectangles.
- *
- * Paths can used for rendering (filling or stroking) and for animations
- * (e.g. as trajectories).
+ * than simple rectangles. Paths can used for rendering (filling or
+ * stroking) and for animations (e.g. as trajectories).
  *
  * `GskPath` is an immutable, opaque, reference-counted struct.
- * After creation, you cannot change the types it represents. Instead,
- * new `GskPath` objects have to be created. The [struct@Gsk.PathBuilder]
- * structure is meant to help in this endeavor.
+ * After creation, you cannot change the types it represents.
+ * Instead, new `GskPath` objects have to be created.
+ *
+ * The [struct@Gsk.PathBuilder] structure is meant to help in this endeavor.
  *
  * Conceptually, a path consists of zero or more contours (continous, connected
  * curves), each of which may or may not be closed. Contours are typically
  * constructed from Bézier segments.
- *
- * <picture>
- *   <source srcset="path-dark.png" media="(prefers-color-scheme: dark)">
- *   <img alt="A Path" src="path-light.png">
- * </picture>
- *
- * Since: 4.14
  */
 
 struct _GskPath
@@ -178,8 +170,7 @@ gsk_path_get_flags (const GskPath *self)
  * for printing.
  *
  * The string is compatible with
- * [SVG path syntax](https://www.w3.org/TR/SVG11/paths.html#PathData),
- * see [func@Gsk.Path.parse] for a summary of the syntax.
+ * [SVG path syntax](https://www.w3.org/TR/SVG11/paths.html#PathData).
  *
  * Since: 4.14
  */
@@ -231,15 +222,15 @@ gsk_path_to_string (GskPath *self)
 }
 
 static gboolean
-gsk_path_to_cairo_add_op (const graphene_point_t *start,
-                          const graphene_point_t *end,
-                          const GskPathControl   *control,
+gsk_path_to_cairo_add_op (GskPathOperation        op,
+                          const graphene_point_t *pts,
+                          gsize                   n_pts,
                           gpointer                cr)
 {
-  switch (control->op)
+  switch (op)
   {
     case GSK_PATH_MOVE:
-      cairo_move_to (cr, end->x, end->y);
+      cairo_move_to (cr, pts[0].x, pts[0].y);
       break;
 
     case GSK_PATH_CLOSE:
@@ -247,17 +238,24 @@ gsk_path_to_cairo_add_op (const graphene_point_t *start,
       break;
 
     case GSK_PATH_LINE:
-      cairo_line_to (cr, end->x, end->y);
-      break;
-
-    case GSK_PATH_CUBIC:
-      cairo_curve_to (cr, control->cubic.control1.x, control->cubic.control1.y,
-                          control->cubic.control2.x, control->cubic.control2.y,
-                          end->x, end->y);
+      cairo_line_to (cr, pts[1].x, pts[1].y);
       break;
 
     case GSK_PATH_QUAD:
-    case GSK_PATH_CONIC:
+      {
+        double x, y;
+        cairo_get_current_point (cr, &x, &y);
+        cairo_curve_to (cr,
+                        1/3.f * x + 2/3.f * pts[1].x, 1/3.f * y + 2/3.f * pts[1].y,
+                        2/3.f * pts[1].x + 1/3.f * pts[2].x, 2/3.f * pts[1].y + 1/3.f * pts[2].y,
+                        pts[2].x, pts[2].y);
+      }
+      break;
+
+    case GSK_PATH_CUBIC:
+      cairo_curve_to (cr, pts[1].x, pts[1].y, pts[2].x, pts[2].y, pts[3].x, pts[3].y);
+      break;
+
     default:
       g_assert_not_reached ();
       return FALSE;
@@ -369,7 +367,7 @@ gsk_path_is_closed (GskPath *self)
  * If the path is empty, `FALSE` is returned and @bounds are set to
  * graphene_rect_zero(). This is different from the case where the path
  * is a single point at the origin, where the @bounds will also be set to
- * the zero rectangle but `TRUE` will be returned.
+ * the zero rectangle but 0 will be returned.
  *
  * Returns: `TRUE` if the path has bounds, `FALSE` if the path is known
  *   to be empty and have no bounds.
@@ -422,7 +420,6 @@ gsk_path_get_bounds (GskPath         *self,
  *
  * Returns: `TRUE` if the path has bounds, `FALSE` if the path is known
  *   to be empty and have no bounds.
- * Since: 4.14
  */
 gboolean
 gsk_path_get_stroke_bounds (GskPath         *self,
@@ -493,72 +490,6 @@ gsk_path_in_fill (GskPath                *self,
     }
 }
 
-/**
- * gsk_path_get_start_point:
- * @self: a `GskPath`
- * @result: (out caller-allocates): return location for point
- *
- * Gets the start point of the path.
- *
- * An empty path has no points, so `FALSE`
- * is returned in this case.
- *
- * Returns: `TRUE` if @result was filled
- *
- * Since: 4.14
- */
-gboolean
-gsk_path_get_start_point (GskPath      *self,
-                          GskPathPoint *result)
-{
-  GskRealPathPoint *res = (GskRealPathPoint *) result;
-
-  g_return_val_if_fail (self != NULL, FALSE);
-  g_return_val_if_fail (result != NULL, FALSE);
-
-  if (self->n_contours == 0)
-    return FALSE;
-
-  res->contour = 0;
-  res->idx = 1;
-  res->t = 0;
-
-  return TRUE;
-}
-
-/**
- * gsk_path_get_end_point:
- * @self: a `GskPath`
- * @result: (out caller-allocates): return location for point
- *
- * Gets the end point of the path.
- *
- * An empty path has no points, so `FALSE`
- * is returned in this case.
- *
- * Returns: `TRUE` if @result was filled
- *
- * Since: 4.14
- */
-gboolean
-gsk_path_get_end_point (GskPath      *self,
-                        GskPathPoint *result)
-{
-  GskRealPathPoint *res = (GskRealPathPoint *) result;
-
-  g_return_val_if_fail (self != NULL, FALSE);
-  g_return_val_if_fail (result != NULL, FALSE);
-
-  if (self->n_contours == 0)
-    return FALSE;
-
-  res->contour = self->n_contours - 1;
-  res->idx = gsk_contour_get_n_ops (self->contours[self->n_contours - 1]) - 1;
-  res->t = 1;
-
-  return TRUE;
-}
-
 /**
  * gsk_path_get_closest_point:
  * @self: a `GskPath`
@@ -601,6 +532,7 @@ gsk_path_get_closest_point (GskPath                *self,
         {
           found = TRUE;
           res->contour = i;
+          res->path = self;
           threshold = distance;
         }
     }
@@ -608,6 +540,74 @@ gsk_path_get_closest_point (GskPath                *self,
   return found;
 }
 
+/**
+ * gsk_path_get_start_point:
+ * @self: a `GskPath`
+ * @result: (out caller-allocates): return location for point
+ *
+ * Gets the start point of the path.
+ *
+ * An empty path has no points, so `FALSE`
+ * is returned in this case.
+ *
+ * Returns: `TRUE` if @result was filled
+ *
+ * Since: 4.14
+ */
+gboolean
+gsk_path_get_start_point (GskPath      *self,
+                          GskPathPoint *result)
+{
+  GskRealPathPoint *res = (GskRealPathPoint *) result;
+
+  g_return_val_if_fail (self != NULL, FALSE);
+  g_return_val_if_fail (result != NULL, FALSE);
+
+  if (self->n_contours == 0)
+    return FALSE;
+
+  gsk_contour_get_start_point (self->contours[0], res);
+
+  res->path = self;
+  res->contour = 0;
+
+  return TRUE;
+}
+
+/**
+ * gsk_path_get_end_point:
+ * @self: a `GskPath`
+ * @result: (out caller-allocates): return location for point
+ *
+ * Gets the end point of the path.
+ *
+ * An empty path has no points, so `FALSE`
+ * is returned in this case.
+ *
+ * Returns: `TRUE` if @result was filled
+ *
+ * Since: 4.14
+ */
+gboolean
+gsk_path_get_end_point (GskPath      *self,
+                        GskPathPoint *result)
+{
+  GskRealPathPoint *res = (GskRealPathPoint *) result;
+
+  g_return_val_if_fail (self != NULL, FALSE);
+  g_return_val_if_fail (result!= NULL, FALSE);
+
+  if (self->n_contours == 0)
+    return FALSE;
+
+  gsk_contour_get_end_point (self->contours[self->n_contours - 1], res);
+
+  res->path = self;
+  res->contour = self->n_contours - 1;
+
+  return TRUE;
+}
+
 /**
  * gsk_path_foreach:
  * @self: a `GskPath`
@@ -618,17 +618,10 @@ gsk_path_get_closest_point (GskPath                *self,
  *
  * Calls @func for every operation of the path.
  *
- * Note that this may only approximate @self, because paths can contain
- * optimizations for various specialized contours, and depending on the
- * @flags, the path may be decomposed into simpler curves than the ones
- * that it contained originally.
- *
- * This function serves two purposes:
- *
- * - When the @flags allow everything, it provides access to the raw,
- *   unmodified data of the path.
- * - When the @flags disallow certain operations, it provides
- *   an approximation of the path using just the allowed operations.
+ * Note that this only approximates @self, because paths can contain
+ * optimizations for various specialized contours, and depending on
+ * the @flags, the path may be decomposed into simpler curves than
+ * the ones that it contained originally.
  *
  * Returns: `FALSE` if @func returned FALSE`, `TRUE` otherwise.
  *
@@ -669,65 +662,60 @@ gsk_path_foreach_trampoline_add_line (const graphene_point_t *from,
 {
   GskPathForeachTrampoline *trampoline = data;
 
-  return trampoline->func (from, to,
-                           &(GskPathControl) { GSK_PATH_LINE, },
+  return trampoline->func (GSK_PATH_LINE,
+                           (graphene_point_t[2]) { *from, *to },
+                           2,
                            trampoline->user_data);
 }
 
 static gboolean
-gsk_path_foreach_trampoline_add_curve (const graphene_point_t *start,
-                                       const graphene_point_t *end,
-                                       const GskPathControl   *control,
+gsk_path_foreach_trampoline_add_curve (GskPathOperation        op,
+                                       const graphene_point_t *pts,
+                                       gsize                   n_pts,
                                        gpointer                data)
 {
   GskPathForeachTrampoline *trampoline = data;
 
-  return trampoline->func (start, end, control, trampoline->user_data);
+  return trampoline->func (op, pts, n_pts, trampoline->user_data);
 }
 
 static gboolean
-gsk_path_foreach_trampoline (const graphene_point_t *start,
-                             const graphene_point_t *end,
-                             const GskPathControl   *control,
+gsk_path_foreach_trampoline (GskPathOperation        op,
+                             const graphene_point_t *pts,
+                             gsize                   n_pts,
                              gpointer                data)
 {
   GskPathForeachTrampoline *trampoline = data;
 
-  switch (control->op)
+  switch (op)
     {
     case GSK_PATH_MOVE:
     case GSK_PATH_CLOSE:
     case GSK_PATH_LINE:
-      return trampoline->func (start, end, control, trampoline->user_data);
+      return trampoline->func (op, pts, n_pts, trampoline->user_data);
 
     case GSK_PATH_QUAD:
       {
         GskCurve curve;
 
         if (trampoline->flags & GSK_PATH_FOREACH_ALLOW_QUAD)
-          return trampoline->func (start, end, control, trampoline->user_data);
+          return trampoline->func (op, pts, n_pts, trampoline->user_data);
         else if (trampoline->flags & GSK_PATH_FOREACH_ALLOW_CUBIC)
           {
-            return trampoline->func (start,
-                                     end,
-                                     &(GskPathControl) {
-                                       .op = GSK_PATH_CUBIC,
-                                       .cubic = (GskCubicControl) {
-                                         .control1 = GRAPHENE_POINT_INIT ((start->x + 2 * control->quad.control.x) / 3,
-                                                                          (start->y + 2 * control->quad.control.y) / 3),
-                                         .control2 = GRAPHENE_POINT_INIT ((end->x + 2 * control->quad.control.x) / 3,
-                                                                          (end->y + 2 * control->quad.control.y) / 3),
-                                       },
+            return trampoline->func (GSK_PATH_CUBIC,
+                                     (graphene_point_t[4]) {
+                                       pts[0],
+                                       GRAPHENE_POINT_INIT ((pts[0].x + 2 * pts[1].x) / 3,
+                                                            (pts[0].y + 2 * pts[1].y) / 3),
+                                       GRAPHENE_POINT_INIT ((pts[2].x + 2 * pts[1].x) / 3,
+                                                            (pts[2].y + 2 * pts[1].y) / 3),
+                                       pts[2],
                                      },
+                                     4,
                                      trampoline->user_data);
           }
 
-        gsk_curve_init (&curve, gsk_pathop_encode (GSK_PATH_QUAD,
-                                                   (graphene_point_t[3]) {
-                                                     *start,
-                                                     control->quad.control,
-                                                     *end,
-                                                   } ));
+        gsk_curve_init (&curve, gsk_pathop_encode (GSK_PATH_QUAD, pts));
         return gsk_curve_decompose (&curve,
                                     trampoline->tolerance,
                                     gsk_path_foreach_trampoline_add_line,
@@ -739,43 +727,10 @@ gsk_path_foreach_trampoline (const graphene_point_t *start,
         GskCurve curve;
 
         if (trampoline->flags & GSK_PATH_FOREACH_ALLOW_CUBIC)
-          return trampoline->func (start, end, control, trampoline->user_data);
+          return trampoline->func (op, pts, n_pts, trampoline->user_data);
 
-        gsk_curve_init (&curve, gsk_pathop_encode (GSK_PATH_CUBIC,
-                                                   (const graphene_point_t[4]) {
-                                                     *start,
-                                                     control->cubic.control1,
-                                                     control->cubic.control2,
-                                                     *end,
-                                                   }));
-        if (trampoline->flags & (GSK_PATH_FOREACH_ALLOW_QUAD|GSK_PATH_FOREACH_ALLOW_CONIC))
-          return gsk_curve_decompose_curve (&curve,
-                                            trampoline->flags,
-                                            trampoline->tolerance,
-                                            gsk_path_foreach_trampoline_add_curve,
-                                            trampoline);
-
-        return gsk_curve_decompose (&curve,
-                                    trampoline->tolerance,
-                                    gsk_path_foreach_trampoline_add_line,
-                                    trampoline);
-      }
-
-    case GSK_PATH_CONIC:
-      {
-        GskCurve curve;
-
-        if (trampoline->flags & GSK_PATH_FOREACH_ALLOW_CONIC)
-          return trampoline->func (start, end, control, trampoline->user_data);
-
-        gsk_curve_init (&curve, gsk_pathop_encode (GSK_PATH_CONIC,
-                                                   (graphene_point_t[4]) {
-                                                     *start,
-                                                     control->conic.control,
-                                                     { control->conic.weight, 0.f },
-                                                     *end
-                                                   } ));
-        if (trampoline->flags & (GSK_PATH_FOREACH_ALLOW_QUAD|GSK_PATH_FOREACH_ALLOW_CUBIC))
+        gsk_curve_init (&curve, gsk_pathop_encode (GSK_PATH_CUBIC, pts));
+        if (trampoline->flags & GSK_PATH_FOREACH_ALLOW_QUAD)
           return gsk_curve_decompose_curve (&curve,
                                             trampoline->flags,
                                             trampoline->tolerance,
@@ -794,9 +749,8 @@ gsk_path_foreach_trampoline (const graphene_point_t *start,
     }
 }
 
-#define ALLOW_ANY (GSK_PATH_FOREACH_ALLOW_QUAD  | \
-                   GSK_PATH_FOREACH_ALLOW_CUBIC | \
-                   GSK_PATH_FOREACH_ALLOW_CONIC)
+#define ALLOW_ANY (GSK_PATH_FOREACH_ALLOW_QUAD| \
+                   GSK_PATH_FOREACH_ALLOW_CUBIC)
 
 gboolean
 gsk_path_foreach_with_tolerance (GskPath             *self,
@@ -954,7 +908,7 @@ parse_command (const char **p,
   if (*cmd == 'X')
     allowed = "mM";
   else
-    allowed = "mMhHvVzZlLcCsStTqQaAoO";
+    allowed = "mMhHvVzZlLcCsStTqQoOaA";
 
   skip_whitespace (p);
   s = _strchr (allowed, **p);
@@ -967,6 +921,81 @@ parse_command (const char **p,
   return FALSE;
 }
 
+static gboolean
+parse_string (const char **p,
+              const char  *s)
+{
+  int len = strlen (s);
+  if (strncmp (*p, s, len) != 0)
+    return FALSE;
+  (*p) += len;
+  return TRUE;
+}
+
+static gboolean
+parse_rectangle (const char **p,
+                 double      *x,
+                 double      *y,
+                 double      *w,
+                 double      *h)
+{
+  const char *o = *p;
+  double w2;
+
+  /* Check for M%g,%gh%gv%gh%gz without any intervening whitespace */
+  if (parse_coordinate_pair (p, x, y) &&
+      parse_string (p, "h") &&
+      parse_coordinate (p, w) &&
+      parse_string (p, "v") &&
+      parse_coordinate (p, h) &&
+      parse_string (p, "h") &&
+      parse_coordinate (p, &w2) &&
+      parse_string (p, "z") &&
+      w2 == - *w)
+    {
+      skip_whitespace (p);
+
+      return TRUE;
+    }
+
+  *p = o;
+  return FALSE;
+}
+
+static gboolean
+parse_circle (const char **p,
+              double      *sx,
+              double      *sy,
+              double      *r)
+{
+  const char *o = *p;
+  double r1, r2, r3, mx, my, ex, ey;
+
+  /* Check for M%g,%gA%g,%g,0,1,0,%g,%gA%g,%g,0,1,0,%g,%g
+   * without any intervening whitespace
+   */
+  if (parse_coordinate_pair (p, sx, sy) &&
+      parse_string (p, "A") &&
+      parse_coordinate_pair (p, r, &r1) &&
+      parse_string (p, "0 0 0") &&
+      parse_coordinate_pair (p, &mx, &my) &&
+      parse_string (p, "A") &&
+      parse_coordinate_pair (p, &r2, &r3) &&
+      parse_string (p, "0 0 0") &&
+      parse_coordinate_pair (p, &ex, &ey) &&
+      parse_string (p, "z") &&
+      *r == r1 && r1 == r2 && r2 == r3 &&
+      *sx == ex && *sy == ey)
+    {
+      skip_whitespace (p);
+
+      return TRUE;
+    }
+
+  *p = o;
+  return FALSE;
+}
+
 /**
  * gsk_path_parse:
  * @string: a string
@@ -974,30 +1003,12 @@ parse_command (const char **p,
  * This is a convenience function that constructs a `GskPath`
  * from a serialized form.
  *
- * The string is expected to be in (a superset of)
+ * The string is expected to be in
  * [SVG path syntax](https://www.w3.org/TR/SVG11/paths.html#PathData),
  * as e.g. produced by [method@Gsk.Path.to_string].
  *
- * A high-level summary of the syntax:
- *
- * - `M x y` Move to `(x, y)`
- * - `L x y` Add a line from the current point to `(x, y)`
- * - `Q x1 y1 x2 y2` Add a quadratic Bézier from the current point to `(x2, y2)`, with control point `(x1, y1)`
- * - `C x1 y1 x2 y2 x3 y3` Add a cubic Bézier from the current point to `(x3, y3)`, with control points `(x1, y1)` and `(x2, y2)`
- * - `Z` Close the contour by drawing a line back to the start point
- * - `H x` Add a horizontal line from the current point to the given x value
- * - `V y` Add a vertical line from the current point to the given y value
- * - `T x2 y2` Add a quadratic Bézier, using the reflection of the previous segments' control point as control point
- * - `S x2 y2 x3 y3` Add a cubic Bézier, using the reflection of the previous segments' second control point as first control point
- * - `A rx ry r l s x y` Add an elliptical arc from the current point to `(x, y)` with radii rx and ry. See the SVG documentation for how the other parameters influence the arc.
- * - `O x1 y1 x2 y2 w` Add a rational quadratic Bézier from the current point to `(x2, y2)` with control point `(x1, y1)` and weight `w`.
- *
- * All the commands have lowercase variants that interpret coordinates
- * relative to the current point.
- *
- * The `O` command is an extension that is not supported in SVG.
- *
- * Returns: (nullable): a new `GskPath`, or `NULL` if @string could not be parsed
+ * Returns: (nullable): a new `GskPath`, or `NULL`
+ *   if @string could not be parsed
  *
  * Since: 4.14
  */
@@ -1051,9 +1062,31 @@ gsk_path_parse (const char *string)
         case 'M':
         case 'm':
           {
-            double x1, y1;
+            double x1, y1, w, h, r;
 
-            if (parse_coordinate_pair (&p, &x1, &y1))
+            if (parse_rectangle (&p, &x1, &y1, &w, &h))
+              {
+                gsk_path_builder_add_rect (builder, &GRAPHENE_RECT_INIT (x1, y1, w, h));
+                if (_strchr ("zZX", prev_cmd))
+                  {
+                    path_x = x1;
+                    path_y = y1;
+                  }
+                x = x1;
+                y = y1;
+              }
+            else if (parse_circle (&p, &x1, &y1, &r))
+              {
+                gsk_path_builder_add_circle (builder, &GRAPHENE_POINT_INIT (x1 - r, y1), r);
+                if (_strchr ("zZX", prev_cmd))
+                  {
+                    path_x = x1;
+                    path_y = y1;
+                  }
+                x = x1;
+                y = y1;
+              }
+            else if (parse_coordinate_pair (&p, &x1, &y1))
               {
                 if (cmd == 'm')
                   {
@@ -1301,37 +1334,6 @@ gsk_path_parse (const char *string)
           }
           break;
 
-        case 'O':
-        case 'o':
-          {
-            double x1, y1, x2, y2, weight;
-
-            if (parse_coordinate_pair (&p, &x1, &y1) &&
-                parse_coordinate_pair (&p, &x2, &y2) &&
-                parse_nonnegative_number (&p, &weight))
-              {
-                if (cmd == 'c')
-                  {
-                    x1 += x;
-                    y1 += y;
-                    x2 += x;
-                    y2 += y;
-                  }
-                if (_strchr ("zZ", prev_cmd))
-                  { 
-                    gsk_path_builder_move_to (builder, x, y);
-                    path_x = x;
-                    path_y = y;
-                  }
-                gsk_path_builder_conic_to (builder, x1, y1, x2, y2, weight);
-                x = x2;
-                y = y2;
-              }
-            else
-              goto error;
-          }
-          break;
-
         case 'A':
         case 'a':
           {
@@ -1389,3 +1391,174 @@ error:
 
   return NULL;
 }
+
+/**
+ * gsk_path_builder_add_segment:
+ * @self: a `GskPathBuilder`
+ * @path: the `GskPath` to take the segment to
+ * @start: the point on @path to start at
+ * @end: the point on @path to end at
+ *
+ * Adds to @self the segment of @path from @start to @end.
+ *
+ * If @start is after @end, the path will first add the segment
+ * from @start to the end of the path, and then add the segment from
+ * the beginning to @end. If the path is closed, these segments will
+ * be connected.
+ *
+ * Since: 4.14
+ */
+void
+gsk_path_builder_add_segment (GskPathBuilder     *self,
+                              GskPath            *path,
+                              const GskPathPoint *start,
+                              const GskPathPoint *end)
+{
+  GskRealPathPoint *s = (GskRealPathPoint *) start;
+  GskRealPathPoint *e = (GskRealPathPoint *) end;
+  const GskContour *contour;
+
+  g_return_if_fail (self != NULL);
+  g_return_if_fail (path != NULL);
+  g_return_if_fail (path == s->path);
+  g_return_if_fail (path == e->path);
+
+  contour = gsk_path_get_contour (path, s->contour);
+
+  if (s->contour == e->contour)
+    {
+      if (gsk_contour_point_compare (contour, s, e) < 0)
+        {
+          gsk_contour_add_segment (contour, self, TRUE, s, e);
+          return;
+        }
+      else if (path->n_contours == 1)
+        {
+          gsk_contour_add_segment (contour, self, TRUE, s, NULL);
+          gsk_contour_add_segment (contour, self, FALSE, NULL, e);
+          return;
+        }
+    }
+
+  gsk_contour_add_segment (contour, self, TRUE, s, NULL);
+
+  for (gsize i = (s->contour + 1) % path->n_contours; i != e->contour; i = (i + 1) % path->n_contours)
+    gsk_path_builder_add_contour (self, gsk_contour_dup (gsk_path_get_contour (path, i)));
+
+  contour = gsk_path_get_contour (path, e->contour);
+  gsk_contour_add_segment (contour, self, FALSE, NULL, e);
+}
+
+/**
+ * gsk_path_get_previous_point:
+ * @self: a `GskPath`
+ * @point: a point on @self
+ * @result: (out caller-allocates): Return location for the result
+ *
+ * Gets the previous 'significant' point on @self before @point.
+ *
+ * The 'significant' points of a path are typically the
+ * on-curve points that have been specified when the
+ * path was created.
+ *
+ * For example, in a path with 3 Bézier segments, the
+ * significant points are the start of the first segment,
+ * the start point of the second segment (which coincides
+ * with the end point of the first segment), the start
+ * point of the third segment, and the end point of the
+ * last segment.
+ *
+ * If @point is the start point of the path, there is no
+ * prior point, and this function returns `FALSE`.
+ *
+ * Returns: `TRUE` if @result has been set to a point
+ */
+gboolean
+gsk_path_get_previous_point (GskPath            *self,
+                             const GskPathPoint *point,
+                             GskPathPoint       *result)
+{
+  GskRealPathPoint *p = (GskRealPathPoint *) point;
+  GskRealPathPoint *res = (GskRealPathPoint *) result;
+  const GskContour *contour;
+
+  g_return_val_if_fail (self != NULL, FALSE);
+  g_return_val_if_fail (self == p->path, FALSE);
+
+  contour = gsk_path_get_contour (self, p->contour);
+
+  if (gsk_contour_get_previous_point (contour, p, res))
+    {
+      res->path  = self;
+      res->contour = p->contour;
+      return TRUE;
+    }
+
+  if (p->contour > 0)
+    {
+      contour = gsk_path_get_contour (self, p->contour - 1);
+      gsk_contour_get_end_point (contour, res);
+      res->path = self;
+      res->contour = p->contour - 1;
+      return TRUE;
+    }
+
+  return FALSE;
+}
+
+/**
+ * gsk_path_get_next_point:
+ * @self: a `GskPath`
+ * @point: a point on @self
+ * @result: (out caller-allocates): Return location for the result
+ *
+ * Gets the next 'significant' point on @self after @point.
+ *
+ * The 'significant' points of a path are typically the
+ * on-curve points that have been specified when the
+ * path was created.
+ *
+ * For example, in a path with 3 Bézier segments, the
+ * significant points are the start of the first segment,
+ * the start point of the second segment (which coincides
+ * with the end point of the first segment), the start
+ * point of the third segment, and the end point of the
+ * last segment.
+ *
+ * If @point is the end point of the path, there is no
+ * next point, and this function returns `FALSE`.
+ *
+ * Returns: `TRUE` if @result has been set to a point
+ */
+gboolean
+gsk_path_get_next_point (GskPath            *self,
+                         const GskPathPoint *point,
+                         GskPathPoint       *result)
+{
+  GskRealPathPoint *p = (GskRealPathPoint *) point;
+  GskRealPathPoint *res = (GskRealPathPoint *) result;
+  const GskContour *contour;
+
+  g_return_val_if_fail (self != NULL, FALSE);
+  g_return_val_if_fail (self == p->path, FALSE);
+
+  contour = gsk_path_get_contour (self, p->contour);
+
+  if (gsk_contour_get_next_point (contour, p, res))
+    {
+      res->path  = self;
+      res->contour = p->contour;
+      return TRUE;
+    }
+
+  if (p->contour < self->n_contours - 1)
+    {
+      contour = gsk_path_get_contour (self, p->contour + 1);
+      gsk_contour_get_start_point (contour, res);
+      res->path = self;
+      res->contour = p->contour + 1;
+      return TRUE;
+    }
+
+  return FALSE;
+}

gsk/gskpath.h

@@ -33,80 +33,38 @@ G_BEGIN_DECLS
  * @GSK_PATH_FOREACH_ALLOW_ONLY_LINES: The default behavior, only allow lines.
  * @GSK_PATH_FOREACH_ALLOW_QUAD: Allow emission of `GSK_PATH_QUAD` operations
  * @GSK_PATH_FOREACH_ALLOW_CUBIC: Allow emission of `GSK_PATH_CUBIC` operations.
- * @GSK_PATH_FOREACH_ALLOW_CONIC: Allow emission of `GSK_PATH_CONIC` operations.
+ * @GSK_PATH_FOREACH_ALLOW_ANY: Allow emission of any kind of operation.
  *
- * Flags that can be passed to gsk_path_foreach() to influence what
- * kinds of operations the path is decomposed into.
+ * Flags that can be passed to gsk_path_foreach() to enable additional
+ * features.
  *
- * By default, [method@Gsk.Path.foreach] will only emit a path with all
- * operations flattened to straight lines to allow for maximum compatibility.
- * The only operations emitted will be `GSK_PATH_MOVE`, `GSK_PATH_LINE` and
- * `GSK_PATH_CLOSE`.
- *
- * Since: 4.14
+ * By default, [method@Gsk.Path.foreach] will only emit a path with all operations
+ * flattened to straight lines to allow for maximum compatibility. The only
+ * operations emitted will be `GSK_PATH_MOVE`, `GSK_PATH_LINE` and `GSK_PATH_CLOSE`.
  */
 typedef enum
 {
   GSK_PATH_FOREACH_ALLOW_ONLY_LINES = 0,
   GSK_PATH_FOREACH_ALLOW_QUAD       = (1 << 0),
   GSK_PATH_FOREACH_ALLOW_CUBIC      = (1 << 1),
-  GSK_PATH_FOREACH_ALLOW_CONIC      = (1 << 2),
 } GskPathForeachFlags;
 
-typedef struct _GskQuadControl GskQuadControl;
-struct _GskQuadControl
-{
-  graphene_point_t control;
-};
-
-typedef struct _GskCubicControl GskCubicControl;
-struct _GskCubicControl
-{
-  graphene_point_t control1;
-  graphene_point_t control2;
-};
-
-typedef struct _GskConicControl GskConicControl;
-struct _GskConicControl
-{
-  graphene_point_t control;
-  float weight;
-};
-
-typedef struct _GskPathControl GskPathControl;
-struct _GskPathControl
-{
-  GskPathOperation op;
-
-  union {
-    GskQuadControl quad;
-    GskCubicControl cubic;
-    GskConicControl conic;
-  };
-};
-
 /**
  * GskPathForeachFunc:
- * @start: The start point of the operation
- * @end: The end point of the operation
- * @control: The control data for the operation
+ * @op: The operation to perform
+ * @pts: The points of the operation
+ * @n_pts: The number of points
  * @user_data: The user data provided with the function
  *
- * Prototype of the callback to iterate through the operations of
+ * Prototype of the callback to iterate throught the operations of
  * a path.
  *
- * For each operation, the callback is given the @op itself, the start-
- * and endpoint, and the control data, depending on the kind of operation.
- *
- * Each contour of the path starts with a @GSK_PATH_MOVE operation.
- * Closed contours end with a @GSK_PATH_CLOSE operation.
- *
- * Returns: %TRUE to continue iterating the path, %FALSE to
+ * Returns: %TRUE to continue evaluating the path, %FALSE to
  *   immediately abort and not call the function again.
  */
-typedef gboolean (* GskPathForeachFunc) (const graphene_point_t *start,
-                                         const graphene_point_t *end,
-                                         const GskPathControl   *control,
+typedef gboolean (* GskPathForeachFunc) (GskPathOperation        op,
+                                         const graphene_point_t *pts,
+                                         gsize                   n_pts,
                                          gpointer                user_data);
 
 #define GSK_TYPE_PATH (gsk_path_get_type ())
@@ -152,6 +110,22 @@ gboolean                gsk_path_in_fill                        (GskPath
                                                                  const graphene_point_t *point,
                                                                  GskFillRule             fill_rule);
 
+GDK_AVAILABLE_IN_4_14
+gboolean                gsk_path_get_closest_point              (GskPath                *self,
+                                                                 const graphene_point_t *point,
+                                                                 float                   threshold,
+                                                                 GskPathPoint           *result);
+
+GDK_AVAILABLE_IN_4_14
+gboolean                gsk_path_get_previous_point             (GskPath                *self,
+                                                                 const GskPathPoint     *point,
+                                                                 GskPathPoint           *result);
+
+GDK_AVAILABLE_IN_4_14
+gboolean                gsk_path_get_next_point                 (GskPath                *self,
+                                                                 const GskPathPoint     *point,
+                                                                 GskPathPoint           *result);
+
 GDK_AVAILABLE_IN_4_14
 gboolean                gsk_path_get_start_point                (GskPath                *self,
                                                                  GskPathPoint           *result);
@@ -159,12 +133,6 @@ GDK_AVAILABLE_IN_4_14
 gboolean                gsk_path_get_end_point                  (GskPath                *self,
                                                                  GskPathPoint           *result);
 
-GDK_AVAILABLE_IN_4_14
-gboolean                gsk_path_get_closest_point              (GskPath                *self,
-                                                                 const graphene_point_t *point,
-                                                                 float                   threshold,
-                                                                 GskPathPoint           *result);
-
 GDK_AVAILABLE_IN_4_14
 gboolean                gsk_path_foreach                        (GskPath                *self,
                                                                  GskPathForeachFlags     flags,

gsk/gskpathbuilder.c

@@ -25,6 +25,7 @@
 
 #include "gskpathprivate.h"
 #include "gskcontourprivate.h"
+#include "gsksplineprivate.h"
 
 /**
  * GskPathBuilder:
@@ -53,9 +54,6 @@
  * either common shapes like [method@Gsk.PathBuilder.add_circle]
  * or by adding from other paths like [method@Gsk.PathBuilder.add_path].
  *
- * The `gsk_path_builder_add_*` methods always add complete contours,
- * and do not use or modify the current point.
- *
  * The other option is to define each line and curve manually with
  * the `gsk_path_builder_*_to` group of functions. You start with
  * a call to [method@Gsk.PathBuilder.move_to] to set the starting point
@@ -65,8 +63,6 @@
  * back with a line to the starting point.
  *
  * This is similar for how paths are drawn in Cairo.
- *
- * Since: 4.14
  */
 
 struct _GskPathBuilder
@@ -392,13 +388,9 @@ void
 gsk_path_builder_add_cairo_path (GskPathBuilder     *self,
                                  const cairo_path_t *path)
 {
-  graphene_point_t current;
-
   g_return_if_fail (self != NULL);
   g_return_if_fail (path != NULL);
 
-  current = self->current_point;
-
   for (gsize i = 0; i < path->num_data; i += path->data[i].header.length)
     {
       const cairo_path_data_t *data = &path->data[i];
@@ -429,9 +421,6 @@ gsk_path_builder_add_cairo_path (GskPathBuilder     *self,
           break;
         }
     }
-
-  gsk_path_builder_end_current (self);
-  self->current_point = current;
 }
 
 /**
@@ -441,8 +430,6 @@ gsk_path_builder_add_cairo_path (GskPathBuilder     *self,
  *
  * Adds @rect as a new contour to the path built by the builder.
  *
- * The path is going around the rectangle in clockwise direction.
- *
  * If the width or height of the rectangle is negative, the start
  * point will be on the right or bottom, respectively.
  *
@@ -455,12 +442,8 @@ void
 gsk_path_builder_add_rect (GskPathBuilder        *self,
                            const graphene_rect_t *rect)
 {
-  graphene_point_t current;
-
   g_return_if_fail (self != NULL);
 
-  current = self->current_point;
-
   gsk_path_builder_move_to (self, rect->origin.x, rect->origin.y);
 
   gsk_path_builder_rel_line_to (self, rect->size.width, 0);
@@ -468,77 +451,20 @@ gsk_path_builder_add_rect (GskPathBuilder        *self,
   gsk_path_builder_rel_line_to (self, - rect->size.width, 0);
 
   gsk_path_builder_close (self);
-  self->current_point = current;
 }
 
-/**
- * gsk_path_builder_add_rounded_rect:
- * @self: a #GskPathBuilder
- * @rect: the rounded rect
- *
- * Adds @rect as a new contour to the path built in @self.
- *
- * The path is going around the rectangle in clockwise direction.
- *
- * Since: 4.14
- */
-void
-gsk_path_builder_add_rounded_rect (GskPathBuilder       *self,
-                                   const GskRoundedRect *rect)
+static gboolean
+circle_contour_curve (const graphene_point_t pts[4],
+                      gpointer                data)
 {
-  graphene_point_t current;
+  GskPathBuilder *self = data;
 
-  g_return_if_fail (self != NULL);
-  g_return_if_fail (rect != NULL);
+  gsk_path_builder_cubic_to (self,
+                             pts[1].x, pts[1].y,
+                             pts[2].x, pts[2].y,
+                             pts[3].x, pts[3].y);
 
-  current = self->current_point;
-
-  gsk_path_builder_move_to (self,
-                            rect->bounds.origin.x + rect->corner[GSK_CORNER_TOP_LEFT].width,
-                            rect->bounds.origin.y);
-  /* top */
-  gsk_path_builder_line_to (self,
-                            rect->bounds.origin.x + rect->bounds.size.width - rect->corner[GSK_CORNER_TOP_RIGHT].width,
-                            rect->bounds.origin.y);
-  /* topright corner */
-  gsk_path_builder_arc_to (self,
-                           rect->bounds.origin.x + rect->bounds.size.width,
-                           rect->bounds.origin.y,
-                           rect->bounds.origin.x + rect->bounds.size.width,
-                           rect->bounds.origin.y + rect->corner[GSK_CORNER_TOP_RIGHT].height);
-  /* right */
-  gsk_path_builder_line_to (self,
-                            rect->bounds.origin.x + rect->bounds.size.width,
-                            rect->bounds.origin.y + rect->bounds.size.height - rect->corner[GSK_CORNER_BOTTOM_RIGHT].height);
-  /* bottomright corner */
-  gsk_path_builder_arc_to (self,
-                           rect->bounds.origin.x + rect->bounds.size.width,
-                           rect->bounds.origin.y + rect->bounds.size.height,
-                           rect->bounds.origin.x + rect->bounds.size.width - rect->corner[GSK_CORNER_BOTTOM_RIGHT].width,
-                           rect->bounds.origin.y + rect->bounds.size.height);
-  /* bottom */
-  gsk_path_builder_line_to (self,
-                            rect->bounds.origin.x + rect->corner[GSK_CORNER_BOTTOM_LEFT].width,
-                            rect->bounds.origin.y + rect->bounds.size.height);
-  /* bottomleft corner */
-  gsk_path_builder_arc_to (self,
-                           rect->bounds.origin.x,
-                           rect->bounds.origin.y + rect->bounds.size.height,
-                           rect->bounds.origin.x,
-                           rect->bounds.origin.y + rect->bounds.size.height - rect->corner[GSK_CORNER_BOTTOM_LEFT].height);
-  /* left */
-  gsk_path_builder_line_to (self,
-                            rect->bounds.origin.x,
-                            rect->bounds.origin.y + rect->corner[GSK_CORNER_TOP_LEFT].height);
-  /* topleft corner */
-  gsk_path_builder_arc_to (self,
-                           rect->bounds.origin.x,
-                           rect->bounds.origin.y,
-                           rect->bounds.origin.x + rect->corner[GSK_CORNER_TOP_LEFT].width,
-                           rect->bounds.origin.y);
-  /* done */
-  gsk_path_builder_close (self);
-  self->current_point = current;
+  return TRUE;
 }
 
 /**
@@ -549,8 +475,6 @@ gsk_path_builder_add_rounded_rect (GskPathBuilder       *self,
  *
  * Adds a circle with the @center and @radius.
  *
- * The path is going around the circle in clockwise direction.
- *
  * Since: 4.14
  */
 void
@@ -558,34 +482,16 @@ gsk_path_builder_add_circle (GskPathBuilder         *self,
                              const graphene_point_t *center,
                              float                   radius)
 {
-  graphene_point_t current;
-
   g_return_if_fail (self != NULL);
   g_return_if_fail (center != NULL);
   g_return_if_fail (radius > 0);
 
-  current = self->current_point;
-
   gsk_path_builder_move_to (self, center->x + radius, center->y);
-  // bottom right quarter
-  gsk_path_builder_arc_to (self,
-                           center->x + radius, center->y + radius,
-                           center->x, center->y + radius);
-  // bottom left quarter
-  gsk_path_builder_arc_to (self,
-                           center->x - radius, center->y + radius,
-                           center->x - radius, center->y);
-  // top left quarter
-  gsk_path_builder_arc_to (self,
-                           center->x - radius, center->y - radius,
-                           center->x, center->y - radius);
-  // top right quarter
-  gsk_path_builder_arc_to (self,
-                           center->x + radius, center->y - radius,
-                           center->x + radius, center->y);
-  // done
+  gsk_spline_decompose_arc (center, radius,
+                            GSK_PATH_TOLERANCE_DEFAULT,
+                            0, 2 * M_PI,
+                            circle_contour_curve, self);
   gsk_path_builder_close (self);
-  self->current_point = current;
 }
 
 /**
@@ -622,8 +528,8 @@ gsk_path_builder_move_to (GskPathBuilder *self,
  * @x: x offset
  * @y: y offset
  *
- * Starts a new contour by placing the pen at @x, @y
- * relative to the current point.
+ * Starts a new contour by placing the pen at @x, @y relative to the current
+ * point.
  *
  * This is the relative version of [method@Gsk.PathBuilder.move_to].
  *
@@ -650,11 +556,6 @@ gsk_path_builder_rel_move_to (GskPathBuilder *self,
  * Draws a line from the current point to @x, @y and makes it
  * the new current point.
  *
- * <picture>
- *   <source srcset="line-dark.png" media="(prefers-color-scheme: dark)">
- *   <img alt="Line To" src="line-light.png">
- * </picture>
- *
  * Since: 4.14
  */
 void
@@ -682,8 +583,8 @@ gsk_path_builder_line_to (GskPathBuilder *self,
  * @x: x offset
  * @y: y offset
  *
- * Draws a line from the current point to a point offset from it
- * by @x, @y and makes it the new current point.
+ * Draws a line from the current point to a point offset to it by @x, @y
+ * and makes it the new current point.
  *
  * This is the relative version of [method@Gsk.PathBuilder.line_to].
  *
@@ -714,11 +615,6 @@ gsk_path_builder_rel_line_to (GskPathBuilder *self,
  *
  * After this, @x2, @y2 will be the new current point.
  *
- * <picture>
- *   <source srcset="quad-dark.png" media="(prefers-color-scheme: dark)">
- *   <img alt="Quad To" src="quad-light.png">
- * </picture>
- *
  * Since: 4.14
  */
 void
@@ -788,11 +684,6 @@ gsk_path_builder_rel_quad_to (GskPathBuilder *self,
  *
  * After this, @x3, @y3 will be the new current point.
  *
- * <picture>
- *   <source srcset="cubic-dark.png" media="(prefers-color-scheme: dark)">
- *   <img alt="Cubic To" src="cubic-light.png">
- * </picture>
- *
  * Since: 4.14
  */
 void
@@ -854,160 +745,6 @@ gsk_path_builder_rel_cubic_to (GskPathBuilder *self,
                              self->current_point.y + y3);
 }
 
-/**
- * gsk_path_builder_conic_to:
- * @self: a `GskPathBuilder`
- * @x1: x coordinate of control point
- * @y1: y coordinate of control point
- * @x2: x coordinate of the end of the curve
- * @y2: y coordinate of the end of the curve
- * @weight: weight of the control point, must be greater than zero
- *
- * Adds a [conic curve](https://en.wikipedia.org/wiki/Non-uniform_rational_B-spline)
- * from the current point to @x2, @y2 with the given @weight and @x1, @y1 as the
- * single control point.
- *
- * The weight determines how strongly the curve is pulled towards the control point.
- * A conic with weight 1 is identical to a quadratic Bézier curve with the same points.
- *
- * Conic curves can be used to draw ellipses and circles. They are also known as
- * rational quadratic Bézier curves.
- *
- * After this, @x2, @y2 will be the new current point.
- *
- * <picture>
- *   <source srcset="conic-dark.png" media="(prefers-color-scheme: dark)">
- *   <img alt="Conic To" src="conic-light.png">
- * </picture>
- *
- * Since: 4.14
- */
-void
-gsk_path_builder_conic_to (GskPathBuilder *self,
-                           float           x1,
-                           float           y1,
-                           float           x2,
-                           float           y2,
-                           float           weight)
-{
-  g_return_if_fail (self != NULL);
-  g_return_if_fail (weight > 0);
-
-  self->flags &= ~GSK_PATH_FLAT;
-  gsk_path_builder_append_current (self,
-                                   GSK_PATH_CONIC,
-                                   3, (graphene_point_t[3]) {
-                                     GRAPHENE_POINT_INIT (x1, y1),
-                                     GRAPHENE_POINT_INIT (weight, 0),
-                                     GRAPHENE_POINT_INIT (x2, y2)
-                                   });
-}
-
-/**
- * gsk_path_builder_rel_conic_to:
- * @self: a `GskPathBuilder`
- * @x1: x offset of control point
- * @y1: y offset of control point
- * @x2: x offset of the end of the curve
- * @y2: y offset of the end of the curve
- * @weight: weight of the curve, must be greater than zero
- *
- * Adds a [conic curve](https://en.wikipedia.org/wiki/Non-uniform_rational_B-spline)
- * from the current point to @x2, @y2 with the given @weight and @x1, @y1 as the
- * single control point.
- *
- * This is the relative version of [method@Gsk.PathBuilder.conic_to].
- *
- * Since: 4.14
- */
-void
-gsk_path_builder_rel_conic_to (GskPathBuilder *self,
-                               float           x1,
-                               float           y1,
-                               float           x2,
-                               float           y2,
-                               float           weight)
-{
-  g_return_if_fail (self != NULL);
-  g_return_if_fail (weight > 0);
-
-  gsk_path_builder_conic_to (self,
-                             self->current_point.x + x1,
-                             self->current_point.y + y1,
-                             self->current_point.x + x2,
-                             self->current_point.y + y2,
-                             weight);
-}
-
-/**
- * gsk_path_builder_arc_to:
- * @self: a `GskPathBuilder`
- * @x1: x coordinate of first control point
- * @y1: y coordinate of first control point
- * @x2: x coordinate of second control point
- * @y2: y coordinate of second control point
- *
- * Adds an elliptical arc from the current point to @x3, @y3
- * with @x1, @y1 determining the tangent directions.
- *
- * After this, @x3, @y3 will be the new current point.
- *
- * Note: Two points and their tangents do not determine
- * a unique ellipse, so GSK just picks one. If you need more
- * precise control, use [method@Gsk.PathBuilder.conic_to]
- * or [method@Gsk.PathBuilder.svg_arc_to].
- *
- * <picture>
- *   <source srcset="arc-dark.png" media="(prefers-color-scheme: dark)">
- *   <img alt="Arc To" src="arc-light.png">
- * </picture>
- *
- * Since: 4.14
- */
-void
-gsk_path_builder_arc_to (GskPathBuilder *self,
-                         float           x1,
-                         float           y1,
-                         float           x2,
-                         float           y2)
-{
-  g_return_if_fail (self != NULL);
-
-  gsk_path_builder_conic_to (self, x1, y1, x2, y2, M_SQRT1_2);
-}
-
-/**
- * gsk_path_builder_rel_arc_to:
- * @self: a `GskPathBuilder`
- * @x1: x coordinate of first control point
- * @y1: y coordinate of first control point
- * @x2: x coordinate of second control point
- * @y2: y coordinate of second control point
- *
- * Adds an elliptical arc from the current point to @x3, @y3
- * with @x1, @y1 determining the tangent directions. All coordinates
- * are given relative to the current point.
- *
- * This is the relative version of [method@Gsk.PathBuilder.arc_to].
- *
- * Since: 4.14
- */
-void
-gsk_path_builder_rel_arc_to (GskPathBuilder *self,
-                             float           x1,
-                             float           y1,
-                             float           x2,
-                             float           y2)
-{
-  g_return_if_fail (self != NULL);
-
-  gsk_path_builder_arc_to (self,
-                           self->current_point.x + x1,
-                           self->current_point.y + y1,
-                           self->current_point.x + x2,
-                           self->current_point.y + y2);
-}
-
 /**
  * gsk_path_builder_close:
  * @self: a `GskPathBuilder`
@@ -1016,9 +753,9 @@ gsk_path_builder_rel_arc_to (GskPathBuilder *self,
  *
  * Note that this is different from calling [method@Gsk.PathBuilder.line_to]
  * with the start point in that the contour will be closed. A closed
- * contour behaves differently from an open one. When stroking, its
- * start and end point are considered connected, so they will be
- * joined via the line join, and not ended with line caps.
+ * contour behaves different from an open one when stroking its start
+ * and end point are considered connected, so they will be joined
+ * via the line join, and not ended with line caps.
  *
  * Since: 4.14
  */
@@ -1085,27 +822,6 @@ _sincos (double angle,
 #endif
 }
 
-/**
- * gsk_path_builder_svg_arc_to:
- * @self: a `GskPathBuilder`
- * @rx: X radius
- * @ry: Y radius
- * @x_axis_rotation: the rotation of the ellipsis
- * @large_arc: whether to add the large arc
- * @positive_sweep: whether to sweep in the positive direction
- * @x: the X coordinate of the endpoint
- * @y: the Y coordinate of the endpoint
- *
- * Implements arc-to according to the SVG spec.
- *
- * A convenience function that implements the
- * [SVG arc_to](https://www.w3.org/TR/SVG11/paths.html#PathDataEllipticalArcCommands)
- * functionality.
- *
- * After this, @x, @y will be the new current point.
- *
- * Since: 4.14
- */
 void
 gsk_path_builder_svg_arc_to (GskPathBuilder *self,
                              float           rx,
@@ -1138,8 +854,6 @@ gsk_path_builder_svg_arc_to (GskPathBuilder *self,
   double th_half;
   double t;
 
-  g_return_if_fail (self != NULL);
-
   if (self->points->len > 0)
     {
       current = &g_array_index (self->points, graphene_point_t, self->points->len - 1);
@@ -1239,179 +953,6 @@ gsk_path_builder_svg_arc_to (GskPathBuilder *self,
     }
 }
 
-/**
- * gsk_path_builder_rel_svg_arc_to:
- * @self: a `GskPathBuilder`
- * @rx: X radius
- * @ry: Y radius
- * @x_axis_rotation: the rotation of the ellipsis
- * @large_arc: whether to add the large arc
- * @positive_sweep: whether to sweep in the positive direction
- * @x: the X coordinate of the endpoint
- * @y: the Y coordinate of the endpoint
- *
- * Implements arc-to according to the SVG spec.
- *
- * All coordinates are given relative to the current point.
- *
- * This is the relative version of [method@Gsk.PathBuilder.svg_arc_to].
- *
- * Since: 4.14
- */
-void
-gsk_path_builder_rel_svg_arc_to (GskPathBuilder *self,
-                                 float           rx,
-                                 float           ry,
-                                 float           x_axis_rotation,
-                                 gboolean        large_arc,
-                                 gboolean        positive_sweep,
-                                 float           x,
-                                 float           y)
-{
-  gsk_path_builder_svg_arc_to (self,
-                               rx, ry,
-                               x_axis_rotation,
-                               large_arc,
-                               positive_sweep,
-                               self->current_point.x + x,
-                               self->current_point.y + y);
-}
-
-/* Return the angle between t1 and t2 in radians, such that
- * 0 means straight continuation
- * < 0 means right turn
- * > 0 means left turn
- */
-static float
-angle_between (const graphene_vec2_t *t1,
-               const graphene_vec2_t *t2)
-{
-  float angle = atan2 (graphene_vec2_get_y (t2), graphene_vec2_get_x (t2))
-                - atan2 (graphene_vec2_get_y (t1), graphene_vec2_get_x (t1));
-
-  if (angle > M_PI)
-    angle -= 2 * M_PI;
-  if (angle < - M_PI)
-    angle += 2 * M_PI;
-
-  return angle;
-}
-
-#define RAD_TO_DEG(r) ((r)*180.f/M_PI)
-#define DEG_TO_RAD(d) ((d)*M_PI/180.f)
-
-static float
-angle_between_points (const graphene_point_t *c,
-                      const graphene_point_t *a,
-                      const graphene_point_t *b)
-{
-  graphene_vec2_t t1, t2;
-
-  graphene_vec2_init (&t1, a->x - c->x, a->y - c->y);
-  graphene_vec2_init (&t2, b->x - c->x, b->y - c->y);
-
-  return (float) RAD_TO_DEG (angle_between (&t1, &t2));
-}
-
-/**
- * gsk_path_builder_html_arc_to:
- * @self: a `GskPathBuilder`
- * @x1: X coordinate of first control point
- * @y1: Y coordinate of first control point
- * @x2: X coordinate of second control point
- * @y2: Y coordinate of second control point
- * @radius: Radius of the circle
- *
- * Implements arc-to according to the HTML Canvas spec.
- *
- * A convenience function that implements the
- * [HTML arc_to](https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-arcto-dev)
- * functionality.
- *
- * After this, the current point will be the point where
- * the circle with the given radius touches the line from
- * @x1, @y1 to @x2, @y2.
- *
- *
- * Since: 4.14
- */
-void
-gsk_path_builder_html_arc_to (GskPathBuilder *self,
-                              float           x1,
-                              float           y1,
-                              float           x2,
-                              float           y2,
-                              float           radius)
-{
-  float angle, b;
-  graphene_vec2_t t;
-  graphene_point_t p, q;
-
-  g_return_if_fail (self != NULL);
-  g_return_if_fail (radius > 0);
-
-  angle = angle_between_points (&GRAPHENE_POINT_INIT (x1, y1),
-                                &self->current_point,
-                                &GRAPHENE_POINT_INIT (x2, y2));
-
-  if (fabsf (angle) < 3)
-    {
-      gsk_path_builder_line_to (self, x2, y2);
-      return;
-    }
-
-  b = radius / tanf (fabsf ((float) DEG_TO_RAD (angle / 2)));
-
-  graphene_vec2_init (&t, self->current_point.x - x1, self->current_point.y - y1);
-  graphene_vec2_normalize (&t, &t);
-
-  p.x = x1 + b * graphene_vec2_get_x (&t);
-  p.y = y1 + b * graphene_vec2_get_y (&t);
-
-  graphene_vec2_init (&t, x2 - x1, y2 - y1);
-  graphene_vec2_normalize (&t, &t);
-
-  q.x = x1 + b * graphene_vec2_get_x (&t);
-  q.y = y1 + b * graphene_vec2_get_y (&t);
-
-  gsk_path_builder_line_to (self, p.x, p.y);
-
-  gsk_path_builder_svg_arc_to (self, radius, radius, 0, FALSE, angle < 0, q.x, q.y);
-}
-
-/**
- * gsk_path_builder_rel_html_arc_to:
- * @self: a `GskPathBuilder`
- * @x1: X coordinate of first control point
- * @y1: Y coordinate of first control point
- * @x2: X coordinate of second control point
- * @y2: Y coordinate of second control point
- * @radius: Radius of the circle
- *
- * Implements arc-to according to the HTML Canvas spec.
- *
- * All coordinates are given relative to the current point.
- *
- * This is the relative version of [method@Gsk.PathBuilder.html_arc_to].
- *
- * Since: 4.14
- */
-void
-gsk_path_builder_rel_html_arc_to (GskPathBuilder *self,
-                                  float           x1,
-                                  float           y1,
-                                  float           x2,
-                                  float           y2,
-                                  float           radius)
-{
-  gsk_path_builder_html_arc_to (self,
-                                self->current_point.x + x1,
-                                self->current_point.y + y1,
-                                self->current_point.x + x2,
-                                self->current_point.y + y2,
-                                radius);
-}
-
 /**
  * gsk_path_builder_add_layout:
  * @self: a #GskPathBuilder
@@ -1442,88 +983,3 @@ gsk_path_builder_add_layout (GskPathBuilder *self,
   cairo_destroy (cr);
   cairo_surface_destroy (surface);
 }
-
-/**
- * gsk_path_builder_add_segment:
- * @self: a `GskPathBuilder`
- * @path: the `GskPath` to take the segment to
- * @start: the point on @path to start at
- * @end: the point on @path to end at
- *
- * Adds to @self the segment of @path from @start to @end.
- *
- * If @start is equal to or after @end, the path will first add the
- * segment from @start to the end of the path, and then add the segment
- * from the beginning to @end. If the path is closed, these segments
- * will be connected.
- *
- * Note that this method always adds a path with the given start point
- * and end point. To add a closed path, use [method@Gsk.PathBuilder.add_path].
- *
- * Since: 4.14
- */
-void
-gsk_path_builder_add_segment (GskPathBuilder     *self,
-                              GskPath            *path,
-                              const GskPathPoint *start,
-                              const GskPathPoint *end)
-{
-  GskRealPathPoint *s = (GskRealPathPoint *) start;
-  GskRealPathPoint *e = (GskRealPathPoint *) end;
-  const GskContour *contour;
-  gsize n_contours = gsk_path_get_n_contours (path);
-  graphene_point_t current;
-  gsize n_ops;
-
-  g_return_if_fail (self != NULL);
-  g_return_if_fail (path != NULL);
-  g_return_if_fail (start != NULL);
-  g_return_if_fail (end != NULL);
-  g_return_if_fail (s->contour < n_contours);
-  g_return_if_fail (e->contour < n_contours);
-
-  current = self->current_point;
-
-  contour = gsk_path_get_contour (path, s->contour);
-  n_ops = gsk_contour_get_n_ops (contour);
-
-  if (s->contour == e->contour)
-    {
-      if (gsk_path_point_compare (start, end) < 0)
-        {
-          gsk_contour_add_segment (contour, self, TRUE, s, e);
-          goto out;
-        }
-      else if (n_contours == 1)
-        {
-          if (n_ops > 1)
-            gsk_contour_add_segment (contour, self, TRUE,
-                                     s,
-                                     &(GskRealPathPoint) { s->contour, n_ops - 1, 1 });
-          gsk_contour_add_segment (contour, self, n_ops <= 1,
-                                   &(GskRealPathPoint) { s->contour, 1, 0 },
-                                   e);
-          goto out;
-        }
-    }
-
-  if (n_ops > 1)
-    gsk_contour_add_segment (contour, self, TRUE,
-                             s,
-                             &(GskRealPathPoint) { s->contour, n_ops - 1, 1. });
-
-  for (gsize i = (s->contour + 1) % n_contours; i != e->contour; i = (i + 1) % n_contours)
-    gsk_path_builder_add_contour (self, gsk_contour_dup (gsk_path_get_contour (path, i)));
-
-  contour = gsk_path_get_contour (path, e->contour);
-  n_ops = gsk_contour_get_n_ops (contour);
-
-  if (n_ops > 1)
-    gsk_contour_add_segment (contour, self, TRUE,
-                             &(GskRealPathPoint) { e->contour, 1, 0 },
-                             e);
-
-out:
-  gsk_path_builder_end_current (self);
-  self->current_point = current;
-}

gsk/gskpathbuilder.h

@@ -65,9 +65,6 @@ GDK_AVAILABLE_IN_4_14
 void                    gsk_path_builder_add_rect               (GskPathBuilder         *self,
                                                                  const graphene_rect_t  *rect);
 GDK_AVAILABLE_IN_4_14
-void                    gsk_path_builder_add_rounded_rect       (GskPathBuilder         *self,
-                                                                 const GskRoundedRect   *rect);
-GDK_AVAILABLE_IN_4_14
 void                    gsk_path_builder_add_circle             (GskPathBuilder         *self,
                                                                  const graphene_point_t *center,
                                                                  float                   radius);
@@ -120,70 +117,6 @@ void                    gsk_path_builder_rel_cubic_to           (GskPathBuilder
                                                                  float                   y2,
                                                                  float                   x3,
                                                                  float                   y3);
-
-GDK_AVAILABLE_IN_4_14
-void                    gsk_path_builder_conic_to               (GskPathBuilder         *self,
-                                                                 float                   x1,
-                                                                 float                   y1,
-                                                                 float                   x2,
-                                                                 float                   y2,
-                                                                 float                   weight);
-GDK_AVAILABLE_IN_4_14
-void                    gsk_path_builder_rel_conic_to           (GskPathBuilder         *self,
-                                                                 float                   x1,
-                                                                 float                   y1,
-                                                                 float                   x2,
-                                                                 float                   y2,
-                                                                 float                   weight);
-
-GDK_AVAILABLE_IN_4_14
-void                    gsk_path_builder_arc_to                 (GskPathBuilder         *self,
-                                                                 float                   x1,
-                                                                 float                   y1,
-                                                                 float                   x2,
-                                                                 float                   y2);
-
-GDK_AVAILABLE_IN_4_14
-void                    gsk_path_builder_rel_arc_to             (GskPathBuilder         *self,
-                                                                 float                   x1,
-                                                                 float                   y1,
-                                                                 float                   x2,
-                                                                 float                   y2);
-
-GDK_AVAILABLE_IN_4_14
-void                    gsk_path_builder_svg_arc_to             (GskPathBuilder         *self,
-                                                                 float                   rx,
-                                                                 float                   ry,
-                                                                 float                   x_axis_rotation,
-                                                                 gboolean                large_arc,
-                                                                 gboolean                positive_sweep,
-                                                                 float                   x,
-                                                                 float                   y);
-GDK_AVAILABLE_IN_4_14
-void                    gsk_path_builder_rel_svg_arc_to         (GskPathBuilder         *self,
-                                                                 float                   rx,
-                                                                 float                   ry,
-                                                                 float                   x_axis_rotation,
-                                                                 gboolean                large_arc,
-                                                                 gboolean                positive_sweep,
-                                                                 float                   x,
-                                                                 float                   y);
-
-GDK_AVAILABLE_IN_4_14
-void                    gsk_path_builder_html_arc_to            (GskPathBuilder         *self,
-                                                                 float                   x1,
-                                                                 float                   y1,
-                                                                 float                   x2,
-                                                                 float                   y2,
-                                                                 float                   radius);
-GDK_AVAILABLE_IN_4_14
-void                    gsk_path_builder_rel_html_arc_to        (GskPathBuilder         *self,
-                                                                 float                   x1,
-                                                                 float                   y1,
-                                                                 float                   x2,
-                                                                 float                   y2,
-                                                                 float                   radius);
-
 GDK_AVAILABLE_IN_4_14
 void                    gsk_path_builder_close                  (GskPathBuilder         *self);
 

gsk/gskpathmeasure.c

@@ -31,8 +31,8 @@
  * `GskPathMeasure` is an object that allows measurements
  * on `GskPath`s such as determining the length of the path.
  *
- * Many measuring operations require sampling the path length
- * at intermediate points. Therefore, a `GskPathMeasure` has
+ * Many measuring operations require approximating the path
+ * with simpler shapes. Therefore, a `GskPathMeasure` has
  * a tolerance that determines what precision is required
  * for such approximations.
  *
@@ -257,6 +257,7 @@ gsk_path_measure_get_point (GskPathMeasure *self,
 {
   GskRealPathPoint *res = (GskRealPathPoint *) result;
   gsize i;
+  float offset;
   const GskContour *contour;
 
   g_return_val_if_fail (self != NULL, FALSE);
@@ -265,23 +266,25 @@ gsk_path_measure_get_point (GskPathMeasure *self,
   if (self->n_contours == 0)
     return FALSE;
 
-  distance = gsk_path_measure_clamp_distance (self, distance);
+  offset = gsk_path_measure_clamp_distance (self, distance);
 
   for (i = 0; i < self->n_contours - 1; i++)
     {
-      if (distance < self->measures[i].length)
+      if (offset < self->measures[i].length)
         break;
 
-      distance -= self->measures[i].length;
+      offset -= self->measures[i].length;
     }
 
   g_assert (0 <= i && i < self->n_contours);
 
-  distance = CLAMP (distance, 0, self->measures[i].length);
+  offset = CLAMP (offset, 0, self->measures[i].length);
 
   contour = gsk_path_get_contour (self->path, i);
 
-  gsk_contour_get_point (contour, self->measures[i].contour_data, distance, res);
+  gsk_contour_get_point (contour, self->measures[i].contour_data, offset, res);
+
+  res->path = self->path;
   res->contour = i;
 
   return TRUE;
@@ -289,8 +292,8 @@ gsk_path_measure_get_point (GskPathMeasure *self,
 
 /**
  * gsk_path_point_get_distance:
- * @point: a `GskPathPoint on the path
- * @measure: a `GskPathMeasure` for the path
+ * @measure: a `GskPathMeasure`
+ * @point: a `GskPathPoint on the path of @self
  *
  * Returns the distance from the beginning of the path
  * to @point.
@@ -300,18 +303,16 @@ gsk_path_measure_get_point (GskPathMeasure *self,
  * Since: 4.14
  */
 float
-gsk_path_point_get_distance (const GskPathPoint *point,
-                             GskPathMeasure     *measure)
+gsk_path_point_get_distance (GskPathMeasure     *measure,
+                             const GskPathPoint *point)
 {
   GskRealPathPoint *p = (GskRealPathPoint *)point;
-  const GskContour *contour;
+  const GskContour *contour = gsk_path_get_contour (measure->path, p->contour);
   float contour_offset = 0;
 
-  g_return_val_if_fail (point != NULL, 0);
   g_return_val_if_fail (measure != NULL, 0);
-  g_return_val_if_fail (p->contour < measure->n_contours, 0);
-
-  contour = gsk_path_get_contour (measure->path, p->contour);
+  g_return_val_if_fail (measure->path == p->path, 0);
+  g_return_val_if_fail (contour != NULL, 0);
 
   for (gsize i = 0; i < measure->n_contours; i++)
     {

gsk/gskpathmeasure.h

@@ -57,6 +57,10 @@ gboolean                gsk_path_measure_get_point              (GskPathMeasure
                                                                  float                   distance,
                                                                  GskPathPoint           *result);
 
+GDK_AVAILABLE_IN_4_14
+float                   gsk_path_measure_get_distance           (GskPathMeasure         *self,
+                                                                 const GskPathPoint     *point);
+
 G_DEFINE_AUTOPTR_CLEANUP_FUNC(GskPathMeasure, gsk_path_measure_unref)
 
 G_END_DECLS

gsk/gskpathopprivate.h

@@ -50,13 +50,6 @@ void                    gsk_path_builder_pathop_reverse_to      (GskPathBuilder
 
 /* IMPLEMENTATION */
 
-/* Note:
- *
- * The weight of conics is encoded as p[2].x, and the endpoint is p[3].
- * This is important, since contours store the points of adjacent
- * operations overlapping, so we can't put the weight at the end.
- */
-
 #define GSK_PATHOP_OPERATION_MASK (0x7)
 
 static inline gskpathop
@@ -89,50 +82,17 @@ gsk_pathop_foreach (gskpathop          pop,
   switch (gsk_pathop_op (pop))
   {
     case GSK_PATH_MOVE:
-      return func (&GRAPHENE_POINT_INIT (0, 0),
-                   &gsk_pathop_points (pop)[0],
-                   &(GskPathControl) { .op = gsk_pathop_op (pop), },
-                   user_data);
+      return func (gsk_pathop_op (pop), gsk_pathop_points (pop), 1, user_data);
 
     case GSK_PATH_CLOSE:
     case GSK_PATH_LINE:
-      return func (&gsk_pathop_points (pop)[0],
-                   &gsk_pathop_points (pop)[1],
-                   &(GskPathControl) { .op = gsk_pathop_op (pop), },
-                   user_data);
+      return func (gsk_pathop_op (pop), gsk_pathop_points (pop), 2, user_data);
 
     case GSK_PATH_QUAD:
-      return func (&gsk_pathop_points (pop)[0],
-                   &gsk_pathop_points (pop)[2],
-                   &(GskPathControl) {
-                     .op = gsk_pathop_op (pop),
-                     .quad = (GskQuadControl) { gsk_pathop_points (pop)[1] }
-                   },
-                   user_data);
+      return func (gsk_pathop_op (pop), gsk_pathop_points (pop), 3, user_data);
 
     case GSK_PATH_CUBIC:
-      return func (&gsk_pathop_points (pop)[0],
-                   &gsk_pathop_points (pop)[3],
-                   &(GskPathControl) {
-                     .op = gsk_pathop_op (pop),
-                     .cubic = (GskCubicControl) {
-                       .control1 = gsk_pathop_points (pop)[1],
-                       .control2 = gsk_pathop_points (pop)[2]
-                     },
-                   },
-                   user_data);
-
-    case GSK_PATH_CONIC:
-      return func (&gsk_pathop_points (pop)[0],
-                   &gsk_pathop_points (pop)[3],
-                   &(GskPathControl) {
-                     .op = gsk_pathop_op (pop),
-                     .conic = (GskConicControl) {
-                        .control = gsk_pathop_points (pop)[1],
-                        .weight = gsk_pathop_points (pop)[2].x
-                     },
-                   },
-                   user_data);
+      return func (gsk_pathop_op (pop), gsk_pathop_points (pop), 4, user_data);
 
     default:
       g_assert_not_reached ();
@@ -168,10 +128,6 @@ gsk_path_builder_pathop_to (GskPathBuilder *builder,
       gsk_path_builder_cubic_to (builder, pts[1].x, pts[1].y, pts[2].x, pts[2].y, pts[3].x, pts[3].y);
       break;
 
-    case GSK_PATH_CONIC:
-      gsk_path_builder_conic_to (builder, pts[1].x, pts[1].y, pts[3].x, pts[3].y, pts[2].x);
-      break;
-
     default:
       g_assert_not_reached ();
       break;
@@ -206,10 +162,6 @@ gsk_path_builder_pathop_reverse_to (GskPathBuilder *builder,
       gsk_path_builder_cubic_to (builder, pts[2].x, pts[2].y, pts[1].x, pts[1].y, pts[0].x, pts[0].y);
       break;
 
-    case GSK_PATH_CONIC:
-      gsk_path_builder_conic_to (builder, pts[1].x, pts[1].y, pts[0].x, pts[0].y, pts[2].x);
-      break;
-
     default:
       g_assert_not_reached ();
       break;

gsk/gskpathpoint.c

@@ -19,16 +19,13 @@
 
 #include "config.h"
 
-#include <math.h>
-
 #include "gskpathpointprivate.h"
 
 #include "gskcontourprivate.h"
+#include "gskpathmeasure.h"
 
 #include "gdk/gdkprivate.h"
 
-#define RAD_TO_DEG(x)          ((x) / (G_PI / 180.f))
-
 /**
  * GskPathPoint:
  *
@@ -37,14 +34,13 @@
  * It can be queried for properties of the path at that point, such as its
  * tangent or its curvature.
  *
- * To obtain a `GskPathPoint`, use [method@Gsk.Path.get_closest_point].
+ * To obtain a `GskPathPoint`, use [method@Gsk.Path.get_closest_point]
+ * or [method@Gsk.PathMeasure.get_point].
  *
  * Note that `GskPathPoint` structs are meant to be stack-allocated, and
  * don't a reference to the path object they are obtained from. It is the
  * callers responsibility to keep a reference to the path as long as the
  * `GskPathPoint` is used.
- *
- * Since: 4.14
  */
 
 G_DEFINE_BOXED_TYPE (GskPathPoint, gsk_path_point,
@@ -70,81 +66,10 @@ gsk_path_point_free (GskPathPoint *point)
   g_free (point);
 }
 
-/**
- * gsk_path_point_equal:
- * @point1: a `GskPathPoint`
- * @point2: another `GskPathPoint`
- *
- * Returns whether the two path points refer to the same
- * location on all paths.
- *
- * Note that the start- and endpoint of a closed contour
- * will compare nonequal according to this definition.
- * Use [method@Gsk.Path.is_closed] to find out if the
- * start- and endpoint of a concrete path refer to the
- * same location.
- *
- * Return: `TRUE` if @point1 and @point2 are equal
- */
-gboolean
-gsk_path_point_equal (const GskPathPoint *point1,
-                      const GskPathPoint *point2)
-{
-  const GskRealPathPoint *p1 = (const GskRealPathPoint *) point1;
-  const GskRealPathPoint *p2 = (const GskRealPathPoint *) point2;
-
-  if (p1->contour == p2->contour)
-    {
-      if ((p1->idx     == p2->idx     && p1->t == p2->t) ||
-          (p1->idx + 1 == p2->idx     && p1->t == 1 && p2->t == 0) ||
-          (p1->idx     == p2->idx + 1 && p1->t == 0 && p2->t == 1))
-        return TRUE;
-    }
-
-  return FALSE;
-}
-
-/**
- * gsk_path_point_compare:
- * @point1: a `GskPathPoint`
- * @point2: another `GskPathPoint`
- *
- * Returns whether @point1 is before or after @point2.
- *
- * Returns: -1 if @point1 is before @point2,
- *   1 if @point1 is after @point2,
- *   0 if they are equal
- */
-int
-gsk_path_point_compare (const GskPathPoint *point1,
-                        const GskPathPoint *point2)
-{
-  const GskRealPathPoint *p1 = (const GskRealPathPoint *) point1;
-  const GskRealPathPoint *p2 = (const GskRealPathPoint *) point2;
-
-  if (gsk_path_point_equal (point1, point2))
-    return 0;
-
-  if (p1->contour < p2->contour)
-    return -1;
-  else if (p1->contour > p2->contour)
-    return 1;
-  else if (p1->idx < p2->idx)
-    return -1;
-  else if (p1->idx > p2->idx)
-    return 1;
-  else if (p1->t < p2->t)
-    return -1;
-  else if (p1->t > p2->t)
-    return 1;
-
-  return 0;
-}
-
 /**
  * gsk_path_point_get_position:
- * @point: a `GskPathPoint`
- * @path: the path that @point is on
+ * @path: a `GskPath`
+ * @point: a `GskPathPoint` on @path
  * @position: (out caller-allocates): Return location for
  *   the coordinates of the point
  *
@@ -153,26 +78,23 @@ gsk_path_point_compare (const GskPathPoint *point1,
  * Since: 4.14
  */
 void
-gsk_path_point_get_position (const GskPathPoint *point,
-                             GskPath            *path,
+gsk_path_point_get_position (GskPath            *path,
+                             const GskPathPoint *point,
                              graphene_point_t   *position)
 {
   GskRealPathPoint *self = (GskRealPathPoint *) point;
-  const GskContour *contour;
+  const GskContour *contour = gsk_path_get_contour (path, self->contour);
 
-  g_return_if_fail (self != NULL);
-  g_return_if_fail (path != NULL);
-  g_return_if_fail (position != NULL);
-  g_return_if_fail (self->contour < gsk_path_get_n_contours (path));
+  g_return_if_fail (path == self->path);
+  g_return_if_fail (contour != NULL);
 
-  contour = gsk_path_get_contour (path, self->contour),
   gsk_contour_get_position (contour, self, position);
 }
 
 /**
  * gsk_path_point_get_tangent:
- * @point: a `GskPathPoint`
- * @path: the path that @point is on
+ * @path: a `GskPath`
+ * @point: a `GskPathPoint` on @path
  * @direction: the direction for which to return the tangent
  * @tangent: (out caller-allocates): Return location for
  *   the tangent at the point
@@ -185,109 +107,51 @@ gsk_path_point_get_position (const GskPathPoint *point,
  * point, and the direction coming out of it. The @direction
  * argument lets you choose which one to get.
  *
- * If you want to orient something in the direction of the
- * path, [method@Gsk.PathPoint.get_rotation] may be more
- * convenient to use.
- *
  * Since: 4.14
  */
 void
-gsk_path_point_get_tangent (const GskPathPoint *point,
-                            GskPath            *path,
+gsk_path_point_get_tangent (GskPath            *path,
+                            const GskPathPoint *point,
                             GskPathDirection    direction,
                             graphene_vec2_t    *tangent)
 {
   GskRealPathPoint *self = (GskRealPathPoint *) point;
-  const GskContour *contour;
+  const GskContour *contour = gsk_path_get_contour (path, self->contour);
 
-  g_return_if_fail (self != NULL);
-  g_return_if_fail (path != NULL);
-  g_return_if_fail (tangent != NULL);
-  g_return_if_fail (self->contour < gsk_path_get_n_contours (path));
+  g_return_if_fail (path == self->path);
+  g_return_if_fail (contour != NULL);
 
-  contour = gsk_path_get_contour (path, self->contour),
   gsk_contour_get_tangent (contour, self, direction, tangent);
 }
 
-/**
- * gsk_path_point_get_rotation:
- * @point: a `GskPathPoint`
- * @path: the path that @point is on
- * @direction: the direction for which to return the rotation
- *
- * Gets the direction of the tangent at a given point.
- *
- * This is a convenience variant of [method@Gsk.PathPoint.get_tangent]
- * that returns the angle between the tangent and the X axis. The angle
- * can e.g. be used in
- * [gtk_snapshot_rotate()](../gtk4/method.Snapshot.rotate.html).
- *
- * Returns: the angle between the tangent and the X axis, in degrees
- *
- * Since: 4.14
- */
-float
-gsk_path_point_get_rotation (const GskPathPoint *point,
-                             GskPath            *path,
-                             GskPathDirection    direction)
-{
-  GskRealPathPoint *self = (GskRealPathPoint *) point;
-  graphene_vec2_t tangent;
-
-  g_return_val_if_fail (self != NULL, 0);
-  g_return_val_if_fail (path != NULL, 0);
-  g_return_val_if_fail (self->contour < gsk_path_get_n_contours (path), 0);
-
-  gsk_path_point_get_tangent (point, path, direction, &tangent);
-
-  return RAD_TO_DEG (atan2f (graphene_vec2_get_y (&tangent),
-                             graphene_vec2_get_x (&tangent)));
-}
-
 /**
  * gsk_path_point_get_curvature:
- * @point: a `GskPathPoint`
- * @path: the path that @point is on
- * @direction: the direction for which to return the curvature
- * @center: (out caller-allocates) (nullable): Return location for
+ * @path: a `GskPath`
+ * @point: a `GskPathPoint` on @path
+ * @center: (out caller-allocates): Return location for
  *   the center of the osculating circle
  *
  * Calculates the curvature of the path at the point.
  *
  * Optionally, returns the center of the osculating circle as well.
- * The curvature is the inverse of the radius of the osculating circle.
  *
- * Lines have a curvature of zero (indicating an osculating circle of
- * infinite radius. In this case, the @center is not modified.
+ * If the curvature is infinite (at line segments), zero is returned,
+ * and @center is not modified.
  *
- * Note that certain points on a path may not have a single curvature,
- * such as sharp turns. At such points, there are two curvatures --
- * the (limit of) the curvature of the path going into the point,
- * and the (limit of) the curvature of the path coming out of it.
- * The @direction argument lets you choose which one to get.
- *
- * <picture>
- *   <source srcset="curvature-dark.png" media="(prefers-color-scheme: dark)">
- *   <img alt="Osculating circle" src="curvature-light.png">
- * </picture>
-
  * Returns: The curvature of the path at the given point
  *
  * Since: 4.14
  */
 float
-gsk_path_point_get_curvature (const GskPathPoint *point,
-                              GskPath            *path,
-                              GskPathDirection    direction,
+gsk_path_point_get_curvature (GskPath            *path,
+                              const GskPathPoint *point,
                               graphene_point_t   *center)
 {
   GskRealPathPoint *self = (GskRealPathPoint *) point;
-  const GskContour *contour;
+  const GskContour *contour = gsk_path_get_contour (path, self->contour);
 
-  g_return_val_if_fail (self != NULL, 0);
-  g_return_val_if_fail (path != NULL, 0);
-  g_return_val_if_fail (self->contour < gsk_path_get_n_contours (path), 0);
+  g_return_val_if_fail (path == self->path, 0);
+  g_return_val_if_fail (contour != NULL, 0);
 
-  contour = gsk_path_get_contour (path, self->contour);
-  return gsk_contour_get_curvature (contour, self, direction, center);
+  return gsk_contour_get_curvature (contour, self, center);
 }

gsk/gskpathpoint.h

@@ -49,37 +49,23 @@ GDK_AVAILABLE_IN_4_14
 void                    gsk_path_point_free            (GskPathPoint       *point);
 
 GDK_AVAILABLE_IN_4_14
-gboolean                gsk_path_point_equal           (const GskPathPoint *point1,
-                                                        const GskPathPoint *point2);
-
-GDK_AVAILABLE_IN_4_14
-int                     gsk_path_point_compare         (const GskPathPoint *point1,
-                                                        const GskPathPoint *point2);
-
-GDK_AVAILABLE_IN_4_14
-void                    gsk_path_point_get_position    (const GskPathPoint *point,
-                                                        GskPath            *path,
+void                    gsk_path_point_get_position    (GskPath            *path,
+                                                        const GskPathPoint *point,
                                                         graphene_point_t   *position);
 
 GDK_AVAILABLE_IN_4_14
-void                    gsk_path_point_get_tangent     (const GskPathPoint *point,
-                                                        GskPath            *path,
+void                    gsk_path_point_get_tangent     (GskPath            *path,
+                                                        const GskPathPoint *point,
                                                         GskPathDirection    direction,
                                                         graphene_vec2_t    *tangent);
 
 GDK_AVAILABLE_IN_4_14
-float                   gsk_path_point_get_rotation    (const GskPathPoint *point,
-                                                        GskPath            *path,
-                                                        GskPathDirection    direction);
-
-GDK_AVAILABLE_IN_4_14
-float                   gsk_path_point_get_curvature   (const GskPathPoint *point,
-                                                        GskPath            *path,
-                                                        GskPathDirection    direction,
+float                   gsk_path_point_get_curvature   (GskPath            *path,
+                                                        const GskPathPoint *point,
                                                         graphene_point_t   *center);
 
 GDK_AVAILABLE_IN_4_14
-float                   gsk_path_point_get_distance    (const GskPathPoint *point,
-                                                        GskPathMeasure     *measure);
+float                   gsk_path_point_get_distance    (GskPathMeasure     *measure,
+                                                        const GskPathPoint *point);
 
 G_END_DECLS

gsk/gskpathpointprivate.h

@@ -7,9 +7,15 @@ G_BEGIN_DECLS
 
 struct _GskRealPathPoint
 {
+  GskPath *path;
   gsize contour;
-  gsize idx;
-  float t;
+
+  union {
+    struct {
+      unsigned int idx;
+      float t;
+    } std;
+  } data;
 };
 
 G_STATIC_ASSERT (sizeof (GskRealPathPoint) <= sizeof (GskPathPoint));

gsk/gskpathprivate.h

@@ -56,5 +56,15 @@ gboolean                gsk_path_foreach_with_tolerance         (GskPath
 void                    gsk_path_builder_add_contour            (GskPathBuilder         *builder,
                                                                  GskContour             *contour);
 
+void                    gsk_path_builder_svg_arc_to             (GskPathBuilder         *builder,
+                                                                 float                   rx,
+                                                                 float                   ry,
+                                                                 float                   x_axis_rotation,
+                                                                 gboolean                large_arc,
+                                                                 gboolean                positive_sweep,
+                                                                 float                   x,
+                                                                 float                   y);
+
+
 G_END_DECLS
 

gsk/gskrectprivate.h

@@ -26,13 +26,3 @@ gsk_rect_intersects (const graphene_rect_t *r1,
     return TRUE;
 }
 
-static inline void
-gsk_rect_to_float (const graphene_rect_t *rect,
-                   float                  values[4])
-{
-  values[0] = rect->origin.x;
-  values[1] = rect->origin.y;
-  values[2] = rect->size.width;
-  values[3] = rect->size.height;
-}
-

gsk/gskrendernode.h

@@ -35,6 +35,7 @@ G_BEGIN_DECLS
 
 #define GSK_SERIALIZATION_ERROR       (gsk_serialization_error_quark ())
 
+typedef struct _GskRenderNode           GskRenderNode;
 typedef struct _GskColorStop            GskColorStop;
 typedef struct _GskShadow               GskShadow;
 

gsk/gskrendernodeimpl.c

@@ -3841,12 +3841,11 @@ gsk_color_matrix_node_class_init (gpointer g_class,
  * Creates a `GskRenderNode` that will drawn the @child with
  * @color_matrix.
  *
- * In particular, the node will transform colors by applying
+ * In particular, the node will transform the operation
  *
- *     pixel = transpose(color_matrix) * pixel + color_offset
+ *     pixel = color_matrix * pixel + color_offset
  *
- * for every pixel. The transformation operates on unpremultiplied
- * colors, with color components ordered R, G, B, A.
+ * for every pixel.
  *
  * Returns: (transfer full) (type GskColorMatrixNode): A new `GskRenderNode`
  */
@@ -3971,7 +3970,7 @@ gsk_repeat_node_draw (GskRenderNode *node,
   scale_x *= width / self->child_bounds.size.width;
   scale_y *= height / self->child_bounds.size.height;
   cairo_surface_set_device_scale (surface, scale_x, scale_y);
-  cairo_surface_set_device_offset (surface,
+  cairo_surface_set_device_offset (surface, 
                                    - self->child_bounds.origin.x * scale_x,
                                    - self->child_bounds.origin.y * scale_y);
 
@@ -4142,7 +4141,7 @@ gsk_clip_node_diff (GskRenderNode  *node1,
       gsk_render_node_diff_impossible (node1, node2, region);
     }
 }
-
+ 
 static void
 gsk_clip_node_class_init (gpointer g_class,
                                gpointer class_data)
@@ -4373,15 +4372,6 @@ gsk_rounded_clip_node_get_clip (const GskRenderNode *node)
 /* }}} */
 /* {{{ GSK_FILL_NODE */
 
-/**
- * GskFillNode:
- *
- * A render node filling the area given by [struct@Gsk.Path]
- * and [enum@Gsk.FillRule] with the child node.
- *
- * Since: 4.14
- */
-
 struct _GskFillNode
 {
   GskRenderNode render_node;
@@ -4582,15 +4572,6 @@ gsk_fill_node_get_fill_rule (const GskRenderNode *node)
 /* }}} */
 /* {{{ GSK_STROKE_NODE */
 
-/**
- * GskStrokeNode:
- *
- * A render node that will fill the area determined by stroking the the given
- * [struct@Gsk.Path] using the [struct@Gsk.Stroke] attributes.
- *
- * Since: 4.14
- */
-
 struct _GskStrokeNode
 {
   GskRenderNode render_node;
@@ -4689,10 +4670,8 @@ gsk_stroke_node_class_init (gpointer g_class,
  * @path: (transfer none): The path describing the area to stroke
  * @stroke: (transfer none): The stroke attributes to use
  *
- * Creates a #GskRenderNode that will fill the outline generated by stroking
- * the given @path using the attributes defined in @stroke.
- *
- * The area is filled with @child.
+ * Creates a #GskRenderNode that will stroke the @child along the given
+ * @path using the attributes defined in @stroke.
  *
  * Returns: (transfer none) (type GskStrokeNode): A new #GskRenderNode
  *

gsk/gskrendernodeparser.c

@@ -2152,52 +2152,6 @@ clear_path (gpointer inout_path)
   g_clear_pointer ((GskPath **) inout_path, gsk_path_unref);
 }
 
-static gboolean
-parse_dash (GtkCssParser *parser,
-            Context      *context,
-            gpointer      out_dash)
-{
-  GArray *dash;
-  double d;
-
-  /* because CSS does this, too */
-  if (gtk_css_parser_try_ident (parser, "none"))
-    {
-      *((GArray **) out_dash) = NULL;
-      return TRUE;
-    }
-
-  dash = g_array_new (FALSE, FALSE, sizeof (float));
-  while (gtk_css_parser_has_token (parser, GTK_CSS_TOKEN_SIGNLESS_NUMBER) ||
-         gtk_css_parser_has_token (parser, GTK_CSS_TOKEN_SIGNLESS_INTEGER))
-    {
-      if (!gtk_css_parser_consume_number (parser, &d))
-        {
-          g_array_free (dash, TRUE);
-          return FALSE;
-        }
-
-      g_array_append_vals (dash, (float[1]) { d }, 1);
-    }
-
-  if (dash->len == 0)
-    {
-      gtk_css_parser_error_syntax (parser, "Empty dash array");
-      g_array_free (dash, TRUE);
-      return FALSE;
-    }
-
-  *((GArray **) out_dash) = dash;
-
-  return TRUE;
-}
-
-static void
-clear_dash (gpointer inout_array)
-{
-  g_clear_pointer ((GArray **) inout_array, g_array_unref);
-}
-
 static gboolean
 parse_enum (GtkCssParser *parser,
             GType         type,
@@ -2294,8 +2248,6 @@ parse_stroke_node (GtkCssParser *parser,
   int line_cap = GSK_LINE_CAP_BUTT;
   int line_join = GSK_LINE_JOIN_MITER;
   double miter_limit = 4.0;
-  GArray *dash = NULL;
-  double dash_offset = 0.0;
   GskStroke *stroke;
 
   const Declaration declarations[] = {
@@ -2304,9 +2256,7 @@ parse_stroke_node (GtkCssParser *parser,
     { "line-width", parse_positive_double, NULL, &line_width },
     { "line-cap", parse_line_cap, NULL, &line_cap },
     { "line-join", parse_line_join, NULL, &line_join },
-    { "miter-limit", parse_positive_double, NULL, &miter_limit },
-    { "dash", parse_dash, clear_dash, &dash },
-    { "dash-offset", parse_double, NULL, &dash_offset}
+    { "miter-limit", parse_positive_double, NULL, &miter_limit }
   };
   GskRenderNode *result;
 
@@ -2320,12 +2270,6 @@ parse_stroke_node (GtkCssParser *parser,
   gsk_stroke_set_line_cap (stroke, line_cap);
   gsk_stroke_set_line_join (stroke, line_join);
   gsk_stroke_set_miter_limit (stroke, miter_limit);
-  if (dash)
-    {
-      gsk_stroke_set_dash (stroke, (float *) dash->data, dash->len);
-      g_array_free (dash, TRUE);
-    }
-  gsk_stroke_set_dash_offset (stroke, dash_offset);
 
   result = gsk_stroke_node_new (child, path, stroke);
 
@@ -3336,34 +3280,6 @@ append_path_param (Printer    *p,
   g_free (str);
 }
 
-static void
-append_dash_param (Printer     *p,
-                   const char  *param_name,
-                   const float *dash,
-                   gsize        n_dash)
-{
-  _indent (p);
-  g_string_append (p->str, "dash: ");
-
-  if (n_dash == 0)
-    {
-      g_string_append (p->str, "none");
-    }
-  else
-    {
-      gsize i;
-
-      string_append_double (p->str, dash[0]);
-      for (i = 1; i < n_dash; i++)
-        {
-          g_string_append_c (p->str, ' ');
-          string_append_double (p->str, dash[i]);
-        }
-    }
-
-  g_string_append (p->str, ";\n");
-}
-
 static void
 render_node_print (Printer       *p,
                    GskRenderNode *node)
@@ -3552,8 +3468,6 @@ render_node_print (Printer       *p,
     case GSK_STROKE_NODE:
       {
         const GskStroke *stroke;
-        const float *dash;
-        gsize n_dash;
 
         start_node (p, "stroke", node_name);
 
@@ -3565,10 +3479,6 @@ render_node_print (Printer       *p,
         append_enum_param (p, "line-cap", GSK_TYPE_LINE_CAP, gsk_stroke_get_line_cap (stroke));
         append_enum_param (p, "line-join", GSK_TYPE_LINE_JOIN, gsk_stroke_get_line_join (stroke));
         append_float_param (p, "miter-limit", gsk_stroke_get_miter_limit (stroke), 4.0f);
-        dash = gsk_stroke_get_dash (stroke, &n_dash);
-        if (dash)
-          append_dash_param (p, "dash", dash, n_dash);
-        append_float_param (p, "dash-offset", gsk_stroke_get_dash_offset (stroke), 0.0f);
 
         end_node (p);
       }

gsk/gskrendernodeprivate.h

@@ -14,7 +14,7 @@ typedef struct _GskRenderNodeClass GskRenderNodeClass;
  * We don't add an "n-types" value to avoid having to handle
  * it in every single switch.
  */
-#define GSK_RENDER_NODE_TYPE_N_TYPES    (GSK_STROKE_NODE + 1)
+#define GSK_RENDER_NODE_TYPE_N_TYPES    (GSK_MASK_NODE + 1)
 
 extern GType gsk_render_node_types[];
 

gsk/gskstroke.c

@@ -26,8 +26,6 @@
  *
  * A `GskStroke` struct collects the parameters that influence
  * the operation of stroking a path.
- *
- * Since: 4.14
  */
 
 G_DEFINE_BOXED_TYPE (GskStroke, gsk_stroke, gsk_stroke_copy, gsk_stroke_free)
@@ -428,7 +426,8 @@ gsk_stroke_set_dash (GskStroke   *self,
 /**
  * gsk_stroke_get_dash:
  * @self: a `GskStroke`
- * @n_dash: (out): number of elements in the array returned
+ * @n_dash: (out caller-allocates): number of elements
+ *     in the array returned
  *
  * Gets the dash array in use or `NULL` if dashing is disabled.
  *

gsk/gsktransform.c

@@ -857,8 +857,7 @@ normalize_angle (float angle)
  * @next: (nullable) (transfer full): the next transform
  * @angle: the rotation angle, in degrees (clockwise)
  *
- * Rotates @next @angle degrees in 2D - or in 3D-speak, around the Z axis.
- * The rotation happens around the origin point of (0, 0).
+ * Rotates @next @angle degrees in 2D - or in 3D-speak, around the z axis.
  *
  * Returns: (nullable): The new transform
  */

gsk/gsktypes.h

@@ -30,7 +30,6 @@ typedef struct _GskPathBuilder          GskPathBuilder;
 typedef struct _GskPathMeasure          GskPathMeasure;
 typedef struct _GskPathPoint            GskPathPoint;
 typedef struct _GskRenderer             GskRenderer;
-typedef struct _GskRenderNode           GskRenderNode;
 typedef struct _GskStroke               GskStroke;
 typedef struct _GskTransform            GskTransform;
 

gsk/meson.build

@@ -110,6 +110,10 @@ if have_vulkan
 endif
 
 gsk_private_vulkan_shaders = []
+# This is an odd split because we use configure_file() below to workaround
+# a limitation in meson preventing using custom_target() with gnome.compile_resources()
+# and that requires file paths, but we also need to have dependencies during development
+# on constantly regenerated files.
 gsk_private_vulkan_compiled_shaders = []
 gsk_private_vulkan_compiled_shaders_deps = []
 gsk_private_vulkan_shader_headers = []
@@ -157,7 +161,7 @@ if get_variable('broadway_enabled')
   ])
 endif
 
-gsk_resources_xml = custom_target(output: 'gsk.resources.xml',
+gsk_resources_xml = configure_file(output: 'gsk.resources.xml',
   input: 'gen-gsk-gresources-xml.py',
   command: [
     find_program('gen-gsk-gresources-xml.py'),
@@ -193,6 +197,7 @@ gsk_deps = [
   pango_dep,
   cairo_dep,
   cairo_csi_dep,
+  pixbuf_dep,
   libgdk_dep,
 ]
 

gsk/vulkan/gskvulkanblendmodeop.c

@@ -43,11 +43,11 @@ gsk_vulkan_blend_mode_op_collect_vertex_data (GskVulkanOp *op,
   GskVulkanBlendModeOp *self = (GskVulkanBlendModeOp *) op;
   GskVulkanBlendModeInstance *instance = (GskVulkanBlendModeInstance *) (data + ((GskVulkanShaderOp *) op)->vertex_offset);
 
-  gsk_rect_to_float (&self->bounds, instance->rect);
-  gsk_rect_to_float (&self->top.rect, instance->top_rect);
-  gsk_rect_to_float (&self->bottom.rect, instance->bottom_rect);
-  gsk_rect_to_float (&self->top.tex_rect, instance->top_tex_rect);
-  gsk_rect_to_float (&self->bottom.tex_rect, instance->bottom_tex_rect);
+  gsk_vulkan_rect_to_float (&self->bounds, instance->rect);
+  gsk_vulkan_rect_to_float (&self->top.rect, instance->top_rect);
+  gsk_vulkan_rect_to_float (&self->bottom.rect, instance->bottom_rect);
+  gsk_vulkan_rect_to_float (&self->top.tex_rect, instance->top_tex_rect);
+  gsk_vulkan_rect_to_float (&self->bottom.tex_rect, instance->bottom_tex_rect);
 
   instance->top_tex_id = self->top.image_descriptor;
   instance->bottom_tex_id = self->bottom.image_descriptor;

gsk/vulkan/gskvulkanblurop.c

@@ -41,8 +41,8 @@ gsk_vulkan_blur_op_collect_vertex_data (GskVulkanOp *op,
   GskVulkanBlurOp *self = (GskVulkanBlurOp *) op;
   GskVulkanBlurInstance *instance = (GskVulkanBlurInstance *) (data + ((GskVulkanShaderOp *) op)->vertex_offset);
 
-  gsk_rect_to_float (&self->rect, instance->rect);
-  gsk_rect_to_float (&self->tex_rect, instance->tex_rect);
+  gsk_vulkan_rect_to_float (&self->rect, instance->rect);
+  gsk_vulkan_rect_to_float (&self->tex_rect, instance->tex_rect);
   instance->tex_id = self->image_descriptor;
   instance->radius = self->radius;
 }

gsk/vulkan/gskvulkancrossfadeop.c

@@ -43,11 +43,11 @@ gsk_vulkan_cross_fade_op_collect_vertex_data (GskVulkanOp *op,
   GskVulkanCrossFadeOp *self = (GskVulkanCrossFadeOp *) op;
   GskVulkanCrossFadeInstance *instance = (GskVulkanCrossFadeInstance *) (data + ((GskVulkanShaderOp *) op)->vertex_offset);
 
-  gsk_rect_to_float (&self->bounds, instance->rect);
-  gsk_rect_to_float (&self->start.rect, instance->start_rect);
-  gsk_rect_to_float (&self->end.rect, instance->end_rect);
-  gsk_rect_to_float (&self->start.tex_rect, instance->start_tex_rect);
-  gsk_rect_to_float (&self->end.tex_rect, instance->end_tex_rect);
+  gsk_vulkan_rect_to_float (&self->bounds, instance->rect);
+  gsk_vulkan_rect_to_float (&self->start.rect, instance->start_rect);
+  gsk_vulkan_rect_to_float (&self->end.rect, instance->end_rect);
+  gsk_vulkan_rect_to_float (&self->start.tex_rect, instance->start_tex_rect);
+  gsk_vulkan_rect_to_float (&self->end.tex_rect, instance->end_tex_rect);
 
   instance->start_tex_id = self->start.image_descriptor;
   instance->end_tex_id = self->end.image_descriptor;

gsk/vulkan/gskvulkanglyphop.c

@@ -42,8 +42,8 @@ gsk_vulkan_glyph_op_collect_vertex_data (GskVulkanOp         *op,
   GskVulkanGlyphOp *self = (GskVulkanGlyphOp *) op;
   GskVulkanGlyphInstance *instance = (GskVulkanGlyphInstance *) (data + ((GskVulkanShaderOp *) op)->vertex_offset);
 
-  gsk_rect_to_float (&self->rect, instance->rect);
-  gsk_rect_to_float (&self->tex_rect, instance->tex_rect);
+  gsk_vulkan_rect_to_float (&self->rect, instance->rect);
+  gsk_vulkan_rect_to_float (&self->tex_rect, instance->tex_rect);
   instance->tex_id = self->image_descriptor;
   gsk_vulkan_rgba_to_float (&self->color, instance->color);
 }

gsk/vulkan/gskvulkanlineargradientop.c

@@ -51,7 +51,7 @@ gsk_vulkan_linear_gradient_op_collect_vertex_data (GskVulkanOp *op,
   GskVulkanLinearGradientOp *self = (GskVulkanLinearGradientOp *) op;
   GskVulkanLinearInstance *instance = (GskVulkanLinearInstance *) (data + ((GskVulkanShaderOp *) op)->vertex_offset);
 
-  gsk_rect_to_float (&self->rect, instance->rect);
+  gsk_vulkan_rect_to_float (&self->rect, instance->rect);
   gsk_vulkan_point_to_float (&self->start, instance->start);
   gsk_vulkan_point_to_float (&self->end, instance->end);
   instance->repeating = self->repeating;

gsk/vulkan/gskvulkanmaskop.c

@@ -60,11 +60,11 @@ gsk_vulkan_mask_op_collect_vertex_data (GskVulkanOp *op,
   GskVulkanMaskOp *self = (GskVulkanMaskOp *) op;
   GskVulkanMaskInstance *instance = (GskVulkanMaskInstance *) (data + ((GskVulkanShaderOp *) op)->vertex_offset);
 
-  gsk_rect_to_float (&self->source.rect, instance->source_rect);
-  gsk_rect_to_float (&self->source.tex_rect, instance->source_tex_rect);
+  gsk_vulkan_rect_to_float (&self->source.rect, instance->source_rect);
+  gsk_vulkan_rect_to_float (&self->source.tex_rect, instance->source_tex_rect);
   instance->source_id = self->source.image_descriptor;
-  gsk_rect_to_float (&self->mask.rect, instance->mask_rect);
-  gsk_rect_to_float (&self->mask.tex_rect, instance->mask_tex_rect);
+  gsk_vulkan_rect_to_float (&self->mask.rect, instance->mask_rect);
+  gsk_vulkan_rect_to_float (&self->mask.tex_rect, instance->mask_tex_rect);
   instance->mask_id = self->mask.image_descriptor;
   instance->mask_mode = self->mask_mode;
 }

gsk/vulkan/gskvulkanprivate.h

@@ -2,7 +2,6 @@
 
 #include "gskdebugprivate.h"
 
-#include "gskrectprivate.h"
 #include "gskroundedrectprivate.h"
 
 #include <gdk/gdk.h>
@@ -38,6 +37,16 @@ gsk_vulkan_normalize_tex_coords (graphene_rect_t       *tex_coords,
                       rect->size.height / tex->size.height);
 }
 
+static inline void
+gsk_vulkan_rect_to_float (const graphene_rect_t *rect,
+                          float                  values[4])
+{
+  values[0] = rect->origin.x;
+  values[1] = rect->origin.y;
+  values[2] = rect->size.width;
+  values[3] = rect->size.height;
+}
+
 static inline void
 gsk_vulkan_rgba_to_float (const GdkRGBA *rgba,
                           float          values[4])

gsk/vulkan/resources/common.frag.glsl

@@ -1,11 +1,9 @@
-#extension GL_EXT_nonuniform_qualifier : enable
-
 layout(set = 0, binding = 0) uniform sampler2D textures[50000];
 layout(set = 1, binding = 0) readonly buffer FloatBuffers {
   float floats[];
 } buffers[50000];
 
-#define get_sampler(id) textures[nonuniformEXT (id)]
-#define get_buffer(id) buffers[nonuniformEXT (id)]
-#define get_float(id) get_buffer(0).floats[nonuniformEXT (id)]
+#define get_sampler(id) textures[id]
+#define get_buffer(id) buffers[id]
+#define get_float(id) get_buffer(0).floats[id]
 

gsk/vulkan/resources/meson.build

@@ -93,12 +93,12 @@ foreach shader: gsk_private_vulkan_shaders
 endforeach
 
 foreach shader: gsk_private_vulkan_vertex_shaders
-  shader_header = custom_target(output: '@0@.h'.format(shader),
-                                input: shader,
-                                command: [
-                                  find_program('generate-header.py'),
-                                  '@INPUT@',
-                                ],
-                                capture: true)
+  shader_header = configure_file(output: '@0@.h'.format(shader),
+                                 input: shader,
+                                 command: [
+                                   find_program('generate-header.py'),
+                                   '@INPUT@',
+                                 ],
+                                 capture: true)
   gsk_private_vulkan_shader_headers += shader_header
 endforeach