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Support multisampled depth texture bindings

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Adds support for processing texture_depth_multisampled_2d bindings
reflected from Tint, and also removes Dawn restrictions against
multisampled depth. These restrictions were originally added in
https://dawn-review.googlesource.com/c/dawn/+/30240 to validate
against using a multisampled depth texture with a
comparison sampler. This is now disallowed by the language with
distinct binding types and builtins in WGSL. Previously with
SPIR-V, we inferred Depth if the texture was used
with a comparison sampler.

Also check Vulkan limits for supported sample counts.

Bug: dawn:1021, dawn:1030
Change-Id: I7233b16c14dc80d10a851cc4e786d5b05512b57a
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/60020
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Jiawei Shao <jiawei.shao@intel.com>
Commit-Queue: Austin Eng <enga@chromium.org>
This commit is contained in:
Austin Eng
2021-07-29 08:06:07 +00:00
committed by Dawn LUCI CQ
parent 448e3ac4c2
commit d05777bd2f
5 changed files with 47 additions and 43 deletions
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22
src/tests/unittests/validation/BindGroupValidationTests.cpp
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@@ -1348,35 +1348,35 @@ TEST_F(BindGroupLayoutValidationTest, MultisampledTextureViewDimension) {
}));
}
// Test that multisampled textures cannot be DepthComparison
TEST_F(BindGroupLayoutValidationTest, MultisampledTextureComponentType) {
// Multisampled float component type works.
// Test that multisampled texture bindings are valid
TEST_F(BindGroupLayoutValidationTest, MultisampledTextureSampleType) {
// Multisampled float sample type works.
utils::MakeBindGroupLayout(device,
{
{0, wgpu::ShaderStage::Compute, wgpu::TextureSampleType::Float,
wgpu::TextureViewDimension::e2D, true},
});
// Multisampled uint component type works.
// Multisampled uint sample type works.
utils::MakeBindGroupLayout(device,
{
{0, wgpu::ShaderStage::Compute, wgpu::TextureSampleType::Uint,
wgpu::TextureViewDimension::e2D, true},
});
// Multisampled sint component type works.
// Multisampled sint sample type works.
utils::MakeBindGroupLayout(device,
{
{0, wgpu::ShaderStage::Compute, wgpu::TextureSampleType::Sint,
wgpu::TextureViewDimension::e2D, true},
});
// Multisampled depth comparison component typeworks.
ASSERT_DEVICE_ERROR(utils::MakeBindGroupLayout(
device, {
{0, wgpu::ShaderStage::Compute, wgpu::TextureSampleType::Depth,
wgpu::TextureViewDimension::e2D, true},
}));
// Multisampled depth sample type works.
utils::MakeBindGroupLayout(device,
{
{0, wgpu::ShaderStage::Compute, wgpu::TextureSampleType::Depth,
wgpu::TextureViewDimension::e2D, true},
});
}
constexpr uint64_t kBufferSize = 3 * kMinUniformBufferOffsetAlignment + 8;