[dawn][emscripten] Removes SwapChain remnants in Emscripten bindings. - Since SwapChain stuff was removed in https://dawn-review.googlesource.com/c/dawn/+/208994, update the Emscripten bindings to reflect the changes. - Needed for Dawn->google3 roll since the Emscripten bindings are broken without this update. Change-Id: Id65f14823ad91286cef194afadf13e03ff1e2858 Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/209595 Reviewed-by: Corentin Wallez <cwallez@chromium.org> Auto-Submit: Loko Kung <lokokung@google.com> Commit-Queue: Corentin Wallez <cwallez@chromium.org>

diff --git a/third_party/emdawnwebgpu/library_webgpu.js b/third_party/emdawnwebgpu/library_webgpu.js
index 2aa72d7..8cbd00d 100644
--- a/third_party/emdawnwebgpu/library_webgpu.js
+++ b/third_party/emdawnwebgpu/library_webgpu.js

@@ -517,6 +517,11 @@
   },
 #endif
 
+  emwgpuGetPreferredFormat: () => {
+    var format = navigator["gpu"]["getPreferredCanvasFormat"]();
+    return WebGPU.Int_PreferredFormat[format];
+  },
+
   // --------------------------------------------------------------------------
   // WebGPU function definitions, with methods organized by "class".
   //
@@ -1665,44 +1670,6 @@
     return ptr;
   },
 
-  wgpuDeviceCreateSwapChain__deps: ['emwgpuCreateSwapChain'],
-  wgpuDeviceCreateSwapChain: (devicePtr, surfacePtr, descriptor) => {
-    {{{ gpu.makeCheckDescriptor('descriptor') }}}
-    var device = WebGPU._tableGet(devicePtr);
-    var context = WebGPU._tableGet(surfacePtr);
-
-#if ASSERTIONS
-    assert({{{ gpu.PresentMode.Fifo }}} ===
-      {{{ gpu.makeGetU32('descriptor', C_STRUCTS.WGPUSwapChainDescriptor.presentMode) }}});
-#endif
-
-    var canvasSize = [
-      {{{ gpu.makeGetU32('descriptor', C_STRUCTS.WGPUSwapChainDescriptor.width) }}},
-      {{{ gpu.makeGetU32('descriptor', C_STRUCTS.WGPUSwapChainDescriptor.height) }}}
-    ];
-
-    if (canvasSize[0] !== 0) {
-      context["canvas"]["width"] = canvasSize[0];
-    }
-
-    if (canvasSize[1] !== 0) {
-      context["canvas"]["height"] = canvasSize[1];
-    }
-
-    var configuration = {
-      "device": device,
-      "format": WebGPU.TextureFormat[
-        {{{ gpu.makeGetU32('descriptor', C_STRUCTS.WGPUSwapChainDescriptor.format) }}}],
-      "usage": {{{ gpu.makeGetU32('descriptor', C_STRUCTS.WGPUSwapChainDescriptor.usage) }}},
-      "alphaMode": "opaque",
-    };
-    context.configure(configuration);
-
-    var ptr = _emwgpuCreateSwapChain();
-    WebGPU._tableInsert(ptr, context);
-    return ptr;
-  },
-
   wgpuDeviceCreateTexture__deps: ['emwgpuCreateTexture'],
   wgpuDeviceCreateTexture: (devicePtr, descriptor) => {
     {{{ gpu.makeCheckDescriptor('descriptor') }}}
@@ -2386,11 +2353,6 @@
     }
   },
 
-  wgpuSurfaceGetPreferredFormat: (surfacePtr, adapterPtr) => {
-    var format = navigator["gpu"]["getPreferredCanvasFormat"]();
-    return WebGPU.Int_PreferredFormat[format];
-  },
-
   wgpuSurfacePresent: (surfacePtr) => {
     // TODO: This could probably be emulated with ASYNCIFY.
     abort('wgpuSurfacePresent is unsupported (use requestAnimationFrame via html5.h instead)');
@@ -2402,31 +2364,6 @@
   },
 
   // --------------------------------------------------------------------------
-  // Methods of SwapChain
-  // --------------------------------------------------------------------------
-
-  wgpuSwapChainGetCurrentTexture__deps: ['emwgpuCreateTexture'],
-  wgpuSwapChainGetCurrentTexture: (swapChainPtr) => {
-    var context = WebGPU._tableGet(swapChainPtr);
-    var ptr = _emwgpuCreateTexture();
-    WebGPU._tableInsert(ptr, context.getCurrentTexture());
-    return ptr;
-  },
-
-  wgpuSwapChainGetCurrentTextureView__deps: ['emwgpuCreateTextureView'],
-  wgpuSwapChainGetCurrentTextureView: (swapChainPtr) => {
-    var context = WebGPU._tableGet(swapChainPtr);
-    var ptr = _emwgpuCreateTextureView();
-    WebGPU._tableInsert(ptr, context.getCurrentTexture().createView());
-    return ptr;
-  },
-
-  wgpuSwapChainPresent: (swapChainPtr) => {
-    // TODO: This could probably be emulated with ASYNCIFY.
-    abort('wgpuSwapChainPresent is unsupported (use requestAnimationFrame via html5.h instead)');
-  },
-
-  // --------------------------------------------------------------------------
   // Methods of Texture
   // --------------------------------------------------------------------------
 

diff --git a/third_party/emdawnwebgpu/webgpu.cpp b/third_party/emdawnwebgpu/webgpu.cpp
index 850b4a6..efc9a98e 100644
--- a/third_party/emdawnwebgpu/webgpu.cpp
+++ b/third_party/emdawnwebgpu/webgpu.cpp

@@ -39,6 +39,7 @@
 FutureID emwgpuWaitAny(FutureID const* futurePtr,
                        size_t futureCount,
                        uint64_t const* timeoutNSPtr);
+WGPUTextureFormat emwgpuGetPreferredFormat();
 
 // Future/async operation that need to be forwarded to JS.
 void emwgpuAdapterRequestDevice(WGPUAdapter adapter,
@@ -251,7 +252,6 @@
   X(Sampler)             \
   X(ShaderModule)        \
   X(Surface)             \
-  X(SwapChain)           \
   X(Texture)             \
   X(TextureView)
 
@@ -275,7 +275,6 @@
   X(Sampler)             \
   X(ShaderModule)        \
   X(Surface)             \
-  X(SwapChain)           \
   X(Texture)             \
   X(TextureView)
 // clang-format on
@@ -1292,7 +1291,7 @@
     WGPUTextureFormat_RGBA8Unorm,
     WGPUTextureFormat_RGBA16Float,
   };
-  WGPUTextureFormat preferredFormat = wgpuSurfaceGetPreferredFormat(surface, adapter);
+  WGPUTextureFormat preferredFormat = emwgpuGetPreferredFormat();
   switch (preferredFormat) {
     case WGPUTextureFormat_RGBA8Unorm:
       capabilities->formatCount = kSurfaceFormatsRGBAFirst.size();
@@ -1326,10 +1325,6 @@
 }
 
 // ----------------------------------------------------------------------------
-// Methods of SwapChain
-// ----------------------------------------------------------------------------
-
-// ----------------------------------------------------------------------------
 // Methods of Texture
 // ----------------------------------------------------------------------------