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cairo: Convert textures to srgb-linear

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Use the new gdk_memort_format_convert_color_state api to
convert textures to linear srgb before passing them to
cairo.
This commit is contained in:
Matthias Clasen
2024-06-19 19:25:11 -04:00
parent 2250761474
commit c5883853d7
1 changed files with 16 additions and 0 deletions
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16
gsk/gskrendernodeimpl.c
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@@ -40,6 +40,7 @@
#include "gdk/gdktextureprivate.h"
#include "gdk/gdktexturedownloaderprivate.h"
#include "gdk/gdkrgbaprivate.h"
#include "gdk/gdkcolorstateprivate.h"
#include <cairo.h>
#ifdef CAIRO_HAS_SVG_SURFACE
@@ -159,6 +160,19 @@ gsk_cairo_set_source_rgba (cairo_t *cr,
rgba->alpha);
}
static void
surface_srgb_to_linear_srgb (cairo_surface_t *s)
{
gdk_memory_convert_color_state (cairo_image_surface_get_data (s),
cairo_image_surface_get_stride (s),
GDK_MEMORY_DEFAULT,
GDK_COLOR_STATE_SRGB,
GDK_COLOR_STATE_SRGB_LINEAR,
cairo_image_surface_get_width (s),
cairo_image_surface_get_height (s));
cairo_surface_mark_dirty (s);
}
/* {{{ GSK_COLOR_NODE */
/**
@@ -1796,6 +1810,7 @@ gsk_texture_node_draw (GskRenderNode *node,
}
surface = gdk_texture_download_surface (self->texture);
surface_srgb_to_linear_srgb (surface);
pattern = cairo_pattern_create_for_surface (surface);
cairo_pattern_set_extend (pattern, CAIRO_EXTEND_PAD);
@@ -1972,6 +1987,7 @@ gsk_texture_scale_node_draw (GskRenderNode *node,
cr2 = cairo_create (surface2);
surface = gdk_texture_download_surface (self->texture);
surface_srgb_to_linear_srgb (surface);
pattern = cairo_pattern_create_for_surface (surface);
cairo_pattern_set_extend (pattern, CAIRO_EXTEND_PAD);