Remove emscripten support

Author: cwfitzgerald

wgpu-core/src/conv.rs

@@ -33,7 +33,7 @@ pub fn is_valid_copy_dst_texture_format(
     }
 }
 
-#[cfg_attr(not(target_arch = "wasm32"), allow(unused))]
+#[cfg_attr(any(not(target_arch = "wasm32"), feature = "emscripten"), allow(unused))]
 pub fn is_valid_external_image_copy_dst_texture_format(format: wgt::TextureFormat) -> bool {
     use wgt::TextureFormat as Tf;
     match format {

wgpu-core/src/device/queue.rs

@@ -805,7 +805,7 @@ impl<G: GlobalIdentityHandlerFactory> Global<G> {
         Ok(())
     }
 
-    #[cfg(target_arch = "wasm32")]
+    #[cfg(all(target_arch = "wasm32", not(feature = "emscripten")))]
     pub fn queue_copy_external_image_to_texture<A: HalApi>(
         &self,
         queue_id: id::QueueId,

wgpu-hal/src/empty.rs

@@ -264,7 +264,7 @@ impl crate::CommandEncoder<Api> for Encoder {
 
     unsafe fn copy_buffer_to_buffer<T>(&mut self, src: &Resource, dst: &Resource, regions: T) {}
 
-    #[cfg(target_arch = "wasm32")]
+    #[cfg(all(target_arch = "wasm32", not(feature = "emscripten")))]
     unsafe fn copy_external_image_to_texture<T>(
         &mut self,
         src: &wgt::ExternalImageSource,

wgpu-hal/src/gles/command.rs

@@ -309,7 +309,7 @@ impl crate::CommandEncoder<super::Api> for super::CommandEncoder {
         }
     }
 
-    #[cfg(target_arch = "wasm32")]
+    #[cfg(all(target_arch = "wasm32", not(feature = "emscripten")))]
     unsafe fn copy_external_image_to_texture<T>(
         &mut self,
         src: &wgt::ExternalImageSource,

wgpu-hal/src/gles/mod.rs

@@ -661,7 +661,7 @@ enum Command {
         dst_target: BindTarget,
         copy: crate::BufferCopy,
     },
-    #[cfg(target_arch = "wasm32")]
+    #[cfg(all(target_arch = "wasm32", not(feature = "emscripten")))]
     CopyExternalImageToTexture {
         src: wgt::ExternalImageSource,
         dst: glow::Texture,

wgpu-hal/src/gles/queue.rs

@@ -375,7 +375,7 @@ impl super::Queue {
                     unsafe { gl.bind_buffer(copy_dst_target, None) };
                 }
             }
-            #[cfg(target_arch = "wasm32")]
+            #[cfg(all(target_arch = "wasm32", not(feature = "emscripten")))]
             C::CopyExternalImageToTexture {
                 ref src,
                 dst,

wgpu-hal/src/lib.rs

@@ -402,7 +402,7 @@ pub trait CommandEncoder<A: Api>: Send + Sync + fmt::Debug {
     /// Works with a single array layer.
     /// Note: `dst` current usage has to be `TextureUses::COPY_DST`.
     /// Note: the copy extent is in physical size (rounded to the block size)
-    #[cfg(target_arch = "wasm32")]
+    #[cfg(all(target_arch = "wasm32", not(feature = "emscripten")))]
     unsafe fn copy_external_image_to_texture<T>(
         &mut self,
         src: &wgt::ExternalImageSource,

wgpu/src/backend/direct.rs

@@ -2196,7 +2196,7 @@ impl crate::Context for Context {
         }
     }
 
-    #[cfg(target_arch = "wasm32")]
+    #[cfg(all(target_arch = "wasm32", not(feature = "emscripten")))]
     fn queue_copy_external_image_to_texture(
         &self,
         queue: &Self::QueueId,

wgpu/src/backend/web.rs

@@ -2357,7 +2357,7 @@ impl crate::context::Context for Context {
             );
     }
 
-    #[cfg(target_arch = "wasm32")]
+    #[cfg(all(target_arch = "wasm32", not(feature = "emscripten")))]
     fn queue_copy_external_image_to_texture(
         &self,
         queue: &Self::QueueId,

wgpu/src/context.rs

@@ -561,7 +561,7 @@ pub trait Context: Debug + Send + Sized + Sync {
         data_layout: ImageDataLayout,
         size: Extent3d,
     );
-    #[cfg(target_arch = "wasm32")]
+    #[cfg(all(target_arch = "wasm32", not(feature = "emscripten")))]
     fn queue_copy_external_image_to_texture(
         &self,
         queue: &Self::QueueId,
@@ -1488,7 +1488,7 @@ pub(crate) trait DynContext: Debug + Send + Sync {
         data_layout: ImageDataLayout,
         size: Extent3d,
     );
-    #[cfg(target_arch = "wasm32")]
+    #[cfg(all(target_arch = "wasm32", not(feature = "emscripten")))]
     fn queue_copy_external_image_to_texture(
         &self,
         queue: &ObjectId,
@@ -2884,7 +2884,7 @@ where
         Context::queue_write_texture(self, &queue, queue_data, texture, data, data_layout, size)
     }
 
-    #[cfg(target_arch = "wasm32")]
+    #[cfg(all(target_arch = "wasm32", not(feature = "emscripten")))]
     fn queue_copy_external_image_to_texture(
         &self,
         queue: &ObjectId,

wgpu/src/lib.rs

@@ -49,9 +49,9 @@ pub use wgt::{
 
 // wasm-only types, we try to keep as many types non-platform
 // specific, but these need to depend on web-sys.
-#[cfg(target_arch = "wasm32")]
+#[cfg(all(target_arch = "wasm32", not(feature = "emscripten")))]
 pub use wgt::{ExternalImageSource, ImageCopyExternalImage};
-#[cfg(target_arch = "wasm32")]
+#[cfg(all(target_arch = "wasm32", not(feature = "emscripten")))]
 static_assertions::assert_impl_all!(ExternalImageSource: Send, Sync);
 
 /// Filter for error scopes.
@@ -3921,7 +3921,7 @@ impl Queue {
     }
 
     /// Schedule a copy of data from `image` into `texture`.
-    #[cfg(target_arch = "wasm32")]
+    #[cfg(all(target_arch = "wasm32", not(feature = "emscripten")))]
     pub fn copy_external_image_to_texture(
         &self,
         source: &wgt::ImageCopyExternalImage,