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gl: Use fractional scale for surface sizes

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Use the fractional scale in begin_frame and end_frame
to the scale sizes to the EGL window.
This commit is contained in:
Matthias Clasen
2023-04-01 22:19:34 -04:00
parent c0d143395f
commit 39a1d6cf56
1 changed files with 9 additions and 7 deletions
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16
gdk/gdkglcontext.c
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@@ -94,6 +94,8 @@
#include <epoxy/egl.h>
#endif
#include <math.h>
#define DEFAULT_ALLOWED_APIS GDK_GL_API_GL | GDK_GL_API_GLES
typedef struct {
@@ -586,8 +588,8 @@ gdk_gl_context_real_begin_frame (GdkDrawContext *draw_context,
cairo_region_union (region, damage);
cairo_region_destroy (damage);
ww = gdk_surface_get_width (surface) * gdk_surface_get_scale_factor (surface);
wh = gdk_surface_get_height (surface) * gdk_surface_get_scale_factor (surface);
ww = (int) ceil (gdk_surface_get_width (surface) * gdk_surface_get_scale (surface));
wh = (int) ceil (gdk_surface_get_height (surface) * gdk_surface_get_scale (surface));
gdk_gl_context_make_current (context);
@@ -631,7 +633,7 @@ gdk_gl_context_real_end_frame (GdkDrawContext *draw_context,
EGLint *heap_rects = NULL;
int i, j, n_rects = cairo_region_num_rectangles (painted);
int surface_height = gdk_surface_get_height (surface);
int scale = gdk_surface_get_scale_factor (surface);
double scale = gdk_surface_get_scale (surface);
EGLint *rects;
if (n_rects < G_N_ELEMENTS (stack_rects) / 4)
@@ -644,10 +646,10 @@ gdk_gl_context_real_end_frame (GdkDrawContext *draw_context,
cairo_rectangle_int_t rect;
cairo_region_get_rectangle (painted, i, &rect);
rects[j++] = rect.x * scale;
rects[j++] = (surface_height - rect.height - rect.y) * scale;
rects[j++] = rect.width * scale;
rects[j++] = rect.height * scale;
rects[j++] = (int) floor (rect.x * scale);
rects[j++] = (int) floor ((surface_height - rect.height - rect.y) * scale);
rects[j++] = (int) ceil (rect.width * scale);
rects[j++] = (int) ceil (rect.height * scale);
}
priv->eglSwapBuffersWithDamage (gdk_display_get_egl_display (display), egl_surface, rects, n_rects);
g_free (heap_rects);