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vulkan: elide blend buffer if blend buffer embeds into frame buffer

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This commit is contained in:
Julian Orth 2025-09-05 19:25:38 +02:00
parent 39c770f6e2
commit fc6dda9c24
1 changed files with 17 additions and 2 deletions
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19
src/gfx_apis/vulkan/renderer.rs
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@ -1894,7 +1894,21 @@ impl VulkanRenderer {
Ok(())
}
fn elide_blend_buffer(&self, blend_buffer: &mut Option<Rc<VulkanImage>>) {
fn elide_blend_buffer1(
&self,
blend_buffer: &mut Option<Rc<VulkanImage>>,
bb_cd: &ColorDescription,
fb_cd: &ColorDescription,
) {
if blend_buffer.is_none() {
return;
}
if bb_cd.embeds_into(fb_cd) {
*blend_buffer = None;
}
}
fn elide_blend_buffer2(&self, blend_buffer: &mut Option<Rc<VulkanImage>>) {
if blend_buffer.is_none() {
return;
}
@ -1918,8 +1932,9 @@ impl VulkanRenderer {
bb_cd: &Rc<ColorDescription>,
) -> Result<(), VulkanError> {
self.check_defunct()?;
self.elide_blend_buffer1(&mut blend_buffer, bb_cd, fb_cd);
self.create_regions(fb, opts, clear, region, blend_buffer.as_deref())?;
self.elide_blend_buffer(&mut blend_buffer);
self.elide_blend_buffer2(&mut blend_buffer);
let bb = blend_buffer.as_deref();
let buf = self.gfx_command_buffers.allocate()?;
self.convert_ops(opts, bb_cd, fb_cd)?;