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Add WGPU_STRIDE_UNDEFINED and update bytesPerRow/rowsPerImage validation

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This makes a nearly one-to-one mapping between the JS and C APIs, which
benefits projects like Blink and Emscripten.

- JavaScript's `undefined` is equivalent to C `WGPU_STRIDE_UNDEFINED`.
- JavaScript's `0` is equivalent to C `0`.
- To implement the API correctly, Blink must special-case an actual
  value coming in from JS that is equal to WGPU_STRIDE_UNDEFINED
  (0xFFFF'FFFF), and inject an error.

Keeps but deprecates a reasonable approximation of the old behavior.

Bug: dawn:520
Change-Id: Ie9c992ffab82830090d0dfc3120731e89cd9691c
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/31140
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
This commit is contained in:
Kai Ninomiya
2020-11-06 13:41:50 +00:00
committed by Commit Bot service account
parent 973d145df8
commit 16036cf206
29 changed files with 712 additions and 369 deletions
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3
examples/CppHelloTriangle.cpp
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@@ -73,8 +73,7 @@ void initTextures() {
wgpu::Buffer stagingBuffer = utils::CreateBufferFromData(
device, data.data(), static_cast<uint32_t>(data.size()), wgpu::BufferUsage::CopySrc);
wgpu::BufferCopyView bufferCopyView =
utils::CreateBufferCopyView(stagingBuffer, 0, 4 * 1024, 0);
wgpu::BufferCopyView bufferCopyView = utils::CreateBufferCopyView(stagingBuffer, 0, 4 * 1024);
wgpu::TextureCopyView textureCopyView = utils::CreateTextureCopyView(texture, 0, {0, 0, 0});
wgpu::Extent3D copySize = {1024, 1024, 1};