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Only allow CompareFunction::Undefined for samplerDesc.compare

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The various backends hit UNREACHABLE() during pipeline creation if
depthStencil.depthCompare (or likewise for stencil) are set to
undefined.

Bug: chromium:1195694
Change-Id: Ibf4d8d47b4c98343dce3caccdf79ee90c0de899f
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/46863
Auto-Submit: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Austin Eng <enga@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
This commit is contained in:
Corentin Wallez
2021-04-08 18:42:47 +00:00
committed by Commit Bot service account
parent 1e45c5e764
commit 5d2f2042de
3 changed files with 25 additions and 2 deletions
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16
src/tests/unittests/validation/RenderPipelineValidationTests.cpp
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@@ -572,6 +572,22 @@ TEST_F(RenderPipelineValidationTest, ClampDepthWithoutExtension) {
}
}
// Test that depthStencil.depthCompare must not be undefiend.
TEST_F(RenderPipelineValidationTest, DepthCompareUndefinedIsError) {
utils::ComboRenderPipelineDescriptor2 descriptor;
descriptor.vertex.module = vsModule;
descriptor.cFragment.module = fsModule;
descriptor.EnableDepthStencil(wgpu::TextureFormat::Depth32Float);
// Control case: Always is valid.
descriptor.cDepthStencil.depthCompare = wgpu::CompareFunction::Always;
device.CreateRenderPipeline2(&descriptor);
// Error case: Undefined is invalid.
descriptor.cDepthStencil.depthCompare = wgpu::CompareFunction::Undefined;
ASSERT_DEVICE_ERROR(device.CreateRenderPipeline2(&descriptor));
}
// Test that the entryPoint names must be present for the correct stage in the shader module.
TEST_F(RenderPipelineValidationTest, EntryPointNameValidation) {
wgpu::ShaderModule module = utils::CreateShaderModule(device, R"(