Implement copyExternalImageToTexture

wgpu/Cargo.toml

@@ -213,7 +213,9 @@ web-sys = { version = "0.3.57", features = [
     "GpuFragmentState",
     "GpuFrontFace",
     "GpuImageCopyBuffer",
+    "GpuImageCopyExternalImage",
     "GpuImageCopyTexture",
+    "GpuImageCopyTextureTagged",
     "GpuImageDataLayout",
     "GpuIndexFormat",
     "GpuLoadOp",
@@ -280,6 +282,7 @@ web-sys = { version = "0.3.57", features = [
     "GpuVertexState",
     "GpuVertexStepMode",
     "HtmlCanvasElement",
+    "ImageBitmap",
     "OffscreenCanvas",
     "Window"
 ] }

wgpu/src/backend/web.rs

@@ -872,6 +872,13 @@ fn map_texture_copy_view(view: crate::ImageCopyTexture) -> web_sys::GpuImageCopy
     mapped
 }
 
+fn map_tagged_texture_copy_view(view: crate::ImageCopyTexture) -> web_sys::GpuImageCopyTextureTagged {
+    let mut mapped = web_sys::GpuImageCopyTextureTagged::new(&view.texture.id.0);
+    mapped.mip_level(view.mip_level);
+    mapped.origin(&map_origin_3d(view.origin));
+    mapped
+}
+
 fn map_texture_aspect(aspect: wgt::TextureAspect) -> web_sys::GpuTextureAspect {
     match aspect {
         wgt::TextureAspect::All => web_sys::GpuTextureAspect::All,
@@ -969,6 +976,22 @@ impl Context {
         };
         Sendable(context.into())
     }
+
+    pub fn queue_copy_external_image_to_texture(
+        &self,
+        queue: &Sendable<web_sys::GpuQueue>,
+        image: &web_sys::ImageBitmap,
+        texture: crate::ImageCopyTexture,
+        size: wgt::Extent3d,
+    ) {
+        queue
+            .0
+            .copy_external_image_to_texture_with_gpu_extent_3d_dict(
+                &web_sys::GpuImageCopyExternalImage::new(image),
+                &map_tagged_texture_copy_view(texture),
+                &map_extent_3d(size),
+            );
+    }
 }
 
 impl crate::Context for Context {

wgpu/src/lib.rs

@@ -3373,6 +3373,17 @@ impl Queue {
         Context::queue_write_texture(&*self.context, &self.id, texture, data, data_layout, size)
     }
 
+    /// Schedule a copy of data from `image` into `texture`
+    #[cfg(all(target_arch = "wasm32", not(feature = "webgl")))]
+    pub fn copy_external_image_to_texture(
+        &self,
+        image: &web_sys::ImageBitmap,
+        texture: ImageCopyTexture,
+        size: Extent3d,
+    ) {
+        self.context.queue_copy_external_image_to_texture(&self.id, image, texture, size)
+    }
+
     /// Submits a series of finished command buffers for execution.
     pub fn submit<I: IntoIterator<Item = CommandBuffer>>(
         &self,