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Merge branch 'fix-glarea-transparency' into 'gtk-3-24'

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Revert 7237f5d0eb

See merge request GNOME/gtk!7079
This commit is contained in:
Matthias Clasen 2024-03-29 06:48:11 +00:00
commit 140e32da63
1 changed files with 24 additions and 0 deletions
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24
gdk/gdkgl.c
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@ -540,6 +540,30 @@ gdk_cairo_draw_from_gl (cairo_t *cr,
/* Translate to impl coords */ /* Translate to impl coords */
cairo_region_translate (clip_region, dx, dy); cairo_region_translate (clip_region, dx, dy);
if (alpha_size != 0)
{
cairo_region_t *opaque_region, *blend_region;
opaque_region = cairo_region_copy (clip_region);
cairo_region_subtract (opaque_region, impl_window->current_paint.flushed_region);
cairo_region_subtract (opaque_region, impl_window->current_paint.need_blend_region);
if (!cairo_region_is_empty (opaque_region))
gdk_gl_texture_from_surface (impl_window->current_paint.surface,
opaque_region);
blend_region = cairo_region_copy (clip_region);
cairo_region_intersect (blend_region, impl_window->current_paint.need_blend_region);
glEnable (GL_BLEND);
if (!cairo_region_is_empty (blend_region))
gdk_gl_texture_from_surface (impl_window->current_paint.surface,
blend_region);
cairo_region_destroy (opaque_region);
cairo_region_destroy (blend_region);
}
glBindTexture (GL_TEXTURE_2D, source); glBindTexture (GL_TEXTURE_2D, source);
if (gdk_gl_context_get_use_es (paint_context) || if (gdk_gl_context_get_use_es (paint_context) ||