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gpu: Punch hole with a clear again

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This reinstates the clear op when possible so we can avoid blending
changes and benefit for large areas, when the clip is appropriate.

Related: #6375
This commit is contained in:
Benjamin Otte
2024-02-09 03:14:52 +01:00
parent 5b184a10a9
commit 9c0ca8803d
1 changed files with 34 additions and 10 deletions
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24
gsk/gpu/gskgpunodeprocessor.c
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@@ -3673,6 +3673,29 @@ gsk_gpu_node_processor_add_subsurface_node (GskGpuNodeProcessor *self,
}
if (!gdk_subsurface_is_above_parent (subsurface))
{
cairo_rectangle_int_t int_clipped;
graphene_rect_t rect, clipped;
graphene_rect_offset_r (&node->bounds,
self->offset.x, self->offset.y,
&rect);
gsk_rect_intersection (&self->clip.rect.bounds, &rect, &clipped);
if (gsk_gpu_frame_should_optimize (self->frame, GSK_GPU_OPTIMIZE_CLEAR) &&
node->bounds.size.width * node->bounds.size.height > 100 * 100 && /* not worth the effort for small images */
(self->clip.type != GSK_GPU_CLIP_ROUNDED ||
gsk_gpu_clip_contains_rect (&self->clip, &GRAPHENE_POINT_INIT(0,0), &clipped)) &&
gsk_gpu_node_processor_rect_is_integer (self, &clipped, &int_clipped))
{
if (gdk_rectangle_intersect (&int_clipped, &self->scissor, &int_clipped))
{
gsk_gpu_clear_op (self->frame,
&int_clipped,
&GDK_RGBA_TRANSPARENT);
}
}
else
{
self->blend = GSK_GPU_BLEND_CLEAR;
self->pending_globals |= GSK_GPU_GLOBAL_BLEND;
@@ -3687,6 +3710,7 @@ gsk_gpu_node_processor_add_subsurface_node (GskGpuNodeProcessor *self,
self->blend = GSK_GPU_BLEND_OVER;
self->pending_globals |= GSK_GPU_GLOBAL_BLEND;
}
}
}
static gboolean