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// Copyright 2021 The Dawn Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "tests/DawnTest.h"
#include "utils/ComboRenderPipelineDescriptor.h"
#include "utils/WGPUHelpers.h"
namespace {
using Format = wgpu::TextureFormat;
enum class Check {
CopyStencil,
StencilTest,
CopyDepth,
DepthTest,
SampleDepth,
};
std::ostream& operator<<(std::ostream& o, Check check) {
switch (check) {
case Check::CopyStencil:
o << "CopyStencil";
break;
case Check::StencilTest:
o << "StencilTest";
break;
case Check::CopyDepth:
o << "CopyDepth";
break;
case Check::DepthTest:
o << "DepthTest";
break;
case Check::SampleDepth:
o << "SampleDepth";
break;
}
return o;
}
DAWN_TEST_PARAM_STRUCT(DepthStencilLoadOpTestParams, Format, Check)
constexpr static uint32_t kRTSize = 16;
constexpr uint32_t kMipLevelCount = 2u;
constexpr std::array<float, kMipLevelCount> kDepthValues = {0.125f, 0.875f};
constexpr std::array<uint8_t, kMipLevelCount> kStencilValues = {7u, 3u};
class DepthStencilLoadOpTests : public DawnTestWithParams<DepthStencilLoadOpTestParams> {
protected:
void SetUp() override {
DawnTestWithParams<DepthStencilLoadOpTestParams>::SetUp();
// Readback of Depth/Stencil textures not fully supported on GL right now.
// Also depends on glTextureView which is not supported on ES.
DAWN_SUPPRESS_TEST_IF(IsOpenGL() || IsOpenGLES());
wgpu::TextureDescriptor descriptor;
descriptor.size = {kRTSize, kRTSize};
descriptor.format = GetParam().mFormat;
descriptor.mipLevelCount = kMipLevelCount;
descriptor.usage = wgpu::TextureUsage::RenderAttachment | wgpu::TextureUsage::CopySrc |
wgpu::TextureUsage::Sampled;
texture = device.CreateTexture(&descriptor);
wgpu::TextureViewDescriptor textureViewDesc = {};
textureViewDesc.mipLevelCount = 1;
for (uint32_t mipLevel = 0; mipLevel < kMipLevelCount; ++mipLevel) {
textureViewDesc.baseMipLevel = mipLevel;
textureViews[mipLevel] = texture.CreateView(&textureViewDesc);
utils::ComboRenderPassDescriptor renderPassDescriptor({}, textureViews[mipLevel]);
renderPassDescriptor.cDepthStencilAttachmentInfo.clearDepth =
kDepthValues[mipLevel];
renderPassDescriptor.cDepthStencilAttachmentInfo.clearStencil =
kStencilValues[mipLevel];
renderPassDescriptors.push_back(renderPassDescriptor);
}
}
void CheckMipLevel(uint32_t mipLevel) {
uint32_t mipSize = std::max(kRTSize >> mipLevel, 1u);
switch (GetParam().mCheck) {
case Check::SampleDepth: {
std::vector<float> expectedDepth(mipSize * mipSize, kDepthValues[mipLevel]);
ExpectSampledDepthData(texture, mipSize, mipSize, 0, mipLevel,
new detail::ExpectEq<float>(
expectedDepth.data(), expectedDepth.size(), 0.0001))
<< "sample depth mip " << mipLevel;
break;
}
case Check::CopyDepth: {
std::vector<float> expectedDepth(mipSize * mipSize, kDepthValues[mipLevel]);
EXPECT_TEXTURE_EQ(expectedDepth.data(), texture, {0, 0}, {mipSize, mipSize},
mipLevel, wgpu::TextureAspect::DepthOnly)
<< "copy depth mip " << mipLevel;
break;
}
case Check::CopyStencil: {
std::vector<uint8_t> expectedStencil(mipSize * mipSize,
kStencilValues[mipLevel]);
EXPECT_TEXTURE_EQ(expectedStencil.data(), texture, {0, 0}, {mipSize, mipSize},
mipLevel, wgpu::TextureAspect::StencilOnly)
<< "copy stencil mip " << mipLevel;
break;
}
case Check::DepthTest: {
std::vector<float> expectedDepth(mipSize * mipSize, kDepthValues[mipLevel]);
ExpectAttachmentDepthTestData(texture, GetParam().mFormat, mipSize, mipSize, 0,
mipLevel, expectedDepth)
<< "depth test mip " << mipLevel;
break;
}
case Check::StencilTest: {
ExpectAttachmentStencilTestData(texture, GetParam().mFormat, mipSize, mipSize,
0, mipLevel, kStencilValues[mipLevel])
<< "stencil test mip " << mipLevel;
break;
}
}
}
wgpu::Texture texture;
std::array<wgpu::TextureView, kMipLevelCount> textureViews;
// Vector instead of array because there is no default constructor.
std::vector<utils::ComboRenderPassDescriptor> renderPassDescriptors;
};
} // anonymous namespace
// Check that clearing a mip level works at all.
TEST_P(DepthStencilLoadOpTests, ClearMip0) {
wgpu::CommandEncoder encoder = device.CreateCommandEncoder();
encoder.BeginRenderPass(&renderPassDescriptors[0]).EndPass();
wgpu::CommandBuffer commandBuffer = encoder.Finish();
queue.Submit(1, &commandBuffer);
CheckMipLevel(0u);
}
// Check that clearing a non-zero mip level works at all.
TEST_P(DepthStencilLoadOpTests, ClearMip1) {
// TODO(crbug.com/dawn/838): Sampling from the non-zero mip does not work.
DAWN_SUPPRESS_TEST_IF(IsMetal() && IsIntel() && GetParam().mCheck == Check::SampleDepth);
// TODO(crbug.com/dawn/838): Copying from the non-zero mip here sometimes returns uninitialized
// data! (from mip 0 of a previous test run).
DAWN_SUPPRESS_TEST_IF(IsMetal() && IsIntel() && GetParam().mCheck == Check::CopyDepth);
DAWN_SUPPRESS_TEST_IF(IsMetal() && IsIntel() && GetParam().mCheck == Check::CopyStencil);
wgpu::CommandEncoder encoder = device.CreateCommandEncoder();
encoder.BeginRenderPass(&renderPassDescriptors[1]).EndPass();
wgpu::CommandBuffer commandBuffer = encoder.Finish();
queue.Submit(1, &commandBuffer);
CheckMipLevel(1u);
}
// Clear first mip then the second mip. Check both mip levels.
TEST_P(DepthStencilLoadOpTests, ClearBothMip0Then1) {
// TODO(crbug.com/dawn/838): Sampling from the non-zero mip does not work.
DAWN_SUPPRESS_TEST_IF(IsMetal() && IsIntel() && GetParam().mCheck == Check::SampleDepth);
wgpu::CommandEncoder encoder = device.CreateCommandEncoder();
encoder.BeginRenderPass(&renderPassDescriptors[0]).EndPass();
encoder.BeginRenderPass(&renderPassDescriptors[1]).EndPass();
wgpu::CommandBuffer commandBuffer = encoder.Finish();
queue.Submit(1, &commandBuffer);
CheckMipLevel(0u);
CheckMipLevel(1u);
}
// Clear second mip then the first mip. Check both mip levels.
TEST_P(DepthStencilLoadOpTests, ClearBothMip1Then0) {
// TODO(crbug.com/dawn/838): Sampling from the non-zero mip does not work.
DAWN_SUPPRESS_TEST_IF(IsMetal() && IsIntel() && GetParam().mCheck == Check::SampleDepth);
wgpu::CommandEncoder encoder = device.CreateCommandEncoder();
encoder.BeginRenderPass(&renderPassDescriptors[1]).EndPass();
encoder.BeginRenderPass(&renderPassDescriptors[0]).EndPass();
wgpu::CommandBuffer commandBuffer = encoder.Finish();
queue.Submit(1, &commandBuffer);
CheckMipLevel(0u);
CheckMipLevel(1u);
}
namespace {
auto GenerateParams() {
auto params1 = MakeParamGenerator<DepthStencilLoadOpTestParams>(
{D3D12Backend(), D3D12Backend({}, {"use_d3d12_render_pass"}), MetalBackend(),
OpenGLBackend(), OpenGLESBackend(), VulkanBackend()},
{wgpu::TextureFormat::Depth32Float},
{Check::CopyDepth, Check::DepthTest, Check::SampleDepth});
auto params2 = MakeParamGenerator<DepthStencilLoadOpTestParams>(
{D3D12Backend(), D3D12Backend({}, {"use_d3d12_render_pass"}), MetalBackend(),
OpenGLBackend(), OpenGLESBackend(), VulkanBackend()},
{wgpu::TextureFormat::Depth24PlusStencil8},
{Check::CopyStencil, Check::StencilTest, Check::DepthTest, Check::SampleDepth});
std::vector<DepthStencilLoadOpTestParams> allParams;
allParams.insert(allParams.end(), params1.begin(), params1.end());
allParams.insert(allParams.end(), params2.begin(), params2.end());
return allParams;
}
INSTANTIATE_TEST_SUITE_P(,
DepthStencilLoadOpTests,
::testing::ValuesIn(GenerateParams()),
DawnTestBase::PrintToStringParamName("DepthStencilLoadOpTests"));
GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(DepthStencilLoadOpTests);
} // namespace