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Handle webgl's queue_copy_external_image_to_texture

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This commit is contained in:
Andreas Reich 2024-08-10 23:47:33 +02:00
parent 1bfe8845d5
commit 9794f33823
1 changed files with 28 additions and 8 deletions
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36
wgpu-core/src/device/queue.rs
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@ -1020,16 +1020,36 @@ impl Global {
size: hal_copy_size,
};
let mut trackers = device.trackers.lock();
let transitions = trackers
.textures
.set_single(&dst, selector, hal::TextureUses::COPY_DST);
// `copy_external_image_to_texture` is exclusive to the WebGL backend.
// Don't go through the `DynCommandEncoder` abstraction and directly to the WebGL backend.
let encoder_webgl = encoder
.as_any_mut()
.downcast_mut::<hal::gles::CommandEncoder>()
.unwrap();
let dst_raw_webgl = dst_raw
.as_any()
.downcast_ref::<hal::gles::Texture>()
.unwrap();
let transitions_webgl = transitions.map(|pending| {
let dyn_transition = pending.into_hal(dst_raw);
hal::TextureBarrier {
texture: dst_raw_webgl,
range: dyn_transition.range,
usage: dyn_transition.usage,
}
});
use hal::CommandEncoder as _;
unsafe {
let mut trackers = device.trackers.lock();
let transitions =
trackers
.textures
.set_single(&dst, selector, hal::TextureUses::COPY_DST);
encoder.transition_textures(transitions.map(|pending| pending.into_hal(dst_raw)));
encoder.copy_external_image_to_texture(
encoder_webgl.transition_textures(transitions_webgl);
encoder_webgl.copy_external_image_to_texture(
source,
dst_raw,
dst_raw_webgl,
destination.premultiplied_alpha,
iter::once(regions),
);