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// Copyright 2019 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 "common/Assert.h"
#include "common/Constants.h"
#include "common/Math.h"
#include "utils/ComboRenderPipelineDescriptor.h"
#include "utils/TestUtils.h"
#include "utils/TextureFormatUtils.h"
#include "utils/WGPUHelpers.h"
// The helper struct to configure the copies between buffers and textures.
struct CopyConfig {
wgpu::TextureDescriptor textureDescriptor;
wgpu::Extent3D copyExtent3D;
wgpu::Origin3D copyOrigin3D = {0, 0, 0};
uint32_t viewMipmapLevel = 0;
uint32_t bufferOffset = 0;
uint32_t bytesPerRowAlignment = kTextureBytesPerRowAlignment;
uint32_t rowsPerImage = wgpu::kCopyStrideUndefined;
};
class CompressedTextureBCFormatTest : public DawnTest {
protected:
std::vector<const char*> GetRequiredExtensions() override {
mIsBCFormatSupported = SupportsExtensions({"texture_compression_bc"});
if (!mIsBCFormatSupported) {
return {};
}
return {"texture_compression_bc"};
}
bool IsBCFormatSupported() const {
return mIsBCFormatSupported;
}
// Compute the upload data for the copyConfig.
std::vector<uint8_t> UploadData(const CopyConfig& copyConfig) {
uint32_t copyWidthInBlock = copyConfig.copyExtent3D.width / kBCBlockWidthInTexels;
uint32_t copyHeightInBlock = copyConfig.copyExtent3D.height / kBCBlockHeightInTexels;
uint32_t copyBytesPerRow = 0;
if (copyConfig.bytesPerRowAlignment != 0) {
copyBytesPerRow = copyConfig.bytesPerRowAlignment;
} else {
copyBytesPerRow = copyWidthInBlock *
utils::GetTexelBlockSizeInBytes(copyConfig.textureDescriptor.format);
}
uint32_t copyRowsPerImage = copyConfig.rowsPerImage;
if (copyRowsPerImage == wgpu::kCopyStrideUndefined) {
copyRowsPerImage = copyHeightInBlock;
}
uint32_t copyBytesPerImage = copyBytesPerRow * copyRowsPerImage;
uint32_t uploadBufferSize = copyConfig.bufferOffset +
copyBytesPerImage * copyConfig.copyExtent3D.depthOrArrayLayers;
// Fill data with the pre-prepared one-block compressed texture data.
std::vector<uint8_t> data(uploadBufferSize, 0);
std::vector<uint8_t> oneBlockCompressedTextureData =
GetOneBlockBCFormatTextureData(copyConfig.textureDescriptor.format);
for (uint32_t layer = 0; layer < copyConfig.copyExtent3D.depthOrArrayLayers; ++layer) {
for (uint32_t h = 0; h < copyHeightInBlock; ++h) {
for (uint32_t w = 0; w < copyWidthInBlock; ++w) {
uint32_t uploadBufferOffset = copyConfig.bufferOffset +
copyBytesPerImage * layer + copyBytesPerRow * h +
oneBlockCompressedTextureData.size() * w;
std::memcpy(&data[uploadBufferOffset], oneBlockCompressedTextureData.data(),
oneBlockCompressedTextureData.size() * sizeof(uint8_t));
}
}
}
return data;
}
// Copy the compressed texture data into the destination texture as is specified in copyConfig.
void InitializeDataInCompressedTexture(wgpu::Texture bcCompressedTexture,
const CopyConfig& copyConfig) {
ASSERT(IsBCFormatSupported());
std::vector<uint8_t> data = UploadData(copyConfig);
// Copy texture data from a staging buffer to the destination texture.
wgpu::Buffer stagingBuffer = utils::CreateBufferFromData(device, data.data(), data.size(),
wgpu::BufferUsage::CopySrc);
wgpu::ImageCopyBuffer imageCopyBuffer =
utils::CreateImageCopyBuffer(stagingBuffer, copyConfig.bufferOffset,
copyConfig.bytesPerRowAlignment, copyConfig.rowsPerImage);
wgpu::ImageCopyTexture imageCopyTexture = utils::CreateImageCopyTexture(
bcCompressedTexture, copyConfig.viewMipmapLevel, copyConfig.copyOrigin3D);
wgpu::CommandEncoder encoder = device.CreateCommandEncoder();
encoder.CopyBufferToTexture(&imageCopyBuffer, &imageCopyTexture, &copyConfig.copyExtent3D);
wgpu::CommandBuffer copy = encoder.Finish();
queue.Submit(1, &copy);
}
// Create the bind group that includes a BC texture and a sampler.
wgpu::BindGroup CreateBindGroupForTest(wgpu::BindGroupLayout bindGroupLayout,
wgpu::Texture bcCompressedTexture,
wgpu::TextureFormat bcFormat,
uint32_t baseArrayLayer = 0,
uint32_t baseMipLevel = 0) {
ASSERT(IsBCFormatSupported());
wgpu::SamplerDescriptor samplerDesc;
samplerDesc.minFilter = wgpu::FilterMode::Nearest;
samplerDesc.magFilter = wgpu::FilterMode::Nearest;
wgpu::Sampler sampler = device.CreateSampler(&samplerDesc);
wgpu::TextureViewDescriptor textureViewDescriptor;
textureViewDescriptor.format = bcFormat;
textureViewDescriptor.dimension = wgpu::TextureViewDimension::e2D;
textureViewDescriptor.baseMipLevel = baseMipLevel;
textureViewDescriptor.baseArrayLayer = baseArrayLayer;
textureViewDescriptor.arrayLayerCount = 1;
textureViewDescriptor.mipLevelCount = 1;
wgpu::TextureView bcTextureView = bcCompressedTexture.CreateView(&textureViewDescriptor);
return utils::MakeBindGroup(device, bindGroupLayout, {{0, sampler}, {1, bcTextureView}});
}
// Create a render pipeline for sampling from a BC texture and rendering into the render target.
wgpu::RenderPipeline CreateRenderPipelineForTest() {
ASSERT(IsBCFormatSupported());
utils::ComboRenderPipelineDescriptor renderPipelineDescriptor;
wgpu::ShaderModule vsModule = utils::CreateShaderModule(device, R"(
struct VertexOut {
[[location(0)]] texCoord : vec2 <f32>;
[[builtin(position)]] position : vec4<f32>;
};
[[stage(vertex)]]
fn main([[builtin(vertex_index)]] VertexIndex : u32) -> VertexOut {
var pos = array<vec2<f32>, 3>(
vec2<f32>(-3.0, 1.0),
vec2<f32>( 3.0, 1.0),
vec2<f32>( 0.0, -2.0)
);
var output : VertexOut;
output.position = vec4<f32>(pos[VertexIndex], 0.0, 1.0);
output.texCoord = vec2<f32>(output.position.x / 2.0, -output.position.y / 2.0) + vec2<f32>(0.5, 0.5);
return output;
})");
wgpu::ShaderModule fsModule = utils::CreateShaderModule(device, R"(
[[group(0), binding(0)]] var sampler0 : sampler;
[[group(0), binding(1)]] var texture0 : texture_2d<f32>;
[[stage(fragment)]]
fn main([[location(0)]] texCoord : vec2<f32>) -> [[location(0)]] vec4<f32> {
return textureSample(texture0, sampler0, texCoord);
})");
renderPipelineDescriptor.vertex.module = vsModule;
renderPipelineDescriptor.cFragment.module = fsModule;
renderPipelineDescriptor.cTargets[0].format = utils::BasicRenderPass::kDefaultColorFormat;
return device.CreateRenderPipeline(&renderPipelineDescriptor);
}
// Run the given render pipeline and bind group and verify the pixels in the render target.
void VerifyCompressedTexturePixelValues(wgpu::RenderPipeline renderPipeline,
wgpu::BindGroup bindGroup,
const wgpu::Extent3D& renderTargetSize,
const wgpu::Origin3D& expectedOrigin,
const wgpu::Extent3D& expectedExtent,
const std::vector<RGBA8>& expected) {
ASSERT(IsBCFormatSupported());
utils::BasicRenderPass renderPass =
utils::CreateBasicRenderPass(device, renderTargetSize.width, renderTargetSize.height);
wgpu::CommandEncoder encoder = device.CreateCommandEncoder();
{
wgpu::RenderPassEncoder pass = encoder.BeginRenderPass(&renderPass.renderPassInfo);
pass.SetPipeline(renderPipeline);
pass.SetBindGroup(0, bindGroup);
pass.Draw(6);
pass.EndPass();
}
wgpu::CommandBuffer commands = encoder.Finish();
queue.Submit(1, &commands);
EXPECT_TEXTURE_EQ(expected.data(), renderPass.color, {expectedOrigin.x, expectedOrigin.y},
{expectedExtent.width, expectedExtent.height});
}
// Run the tests that copies pre-prepared BC format data into a BC texture and verifies if we
// can render correctly with the pixel values sampled from the BC texture.
void TestCopyRegionIntoBCFormatTextures(const CopyConfig& config) {
ASSERT(IsBCFormatSupported());
wgpu::Texture bcTexture = CreateTextureWithCompressedData(config);
VerifyBCTexture(config, bcTexture);
}
void VerifyBCTexture(const CopyConfig& config, wgpu::Texture bcTexture) {
wgpu::RenderPipeline renderPipeline = CreateRenderPipelineForTest();
wgpu::Extent3D virtualSizeAtLevel = GetVirtualSizeAtLevel(config);
// The copy region may exceed the subresource size because of the required paddings for BC
// blocks, so we should limit the size of the expectedData to make it match the real size
// of the render target.
wgpu::Extent3D noPaddingExtent3D = config.copyExtent3D;
if (config.copyOrigin3D.x + config.copyExtent3D.width > virtualSizeAtLevel.width) {
noPaddingExtent3D.width = virtualSizeAtLevel.width - config.copyOrigin3D.x;
}
if (config.copyOrigin3D.y + config.copyExtent3D.height > virtualSizeAtLevel.height) {
noPaddingExtent3D.height = virtualSizeAtLevel.height - config.copyOrigin3D.y;
}
noPaddingExtent3D.depthOrArrayLayers = 1u;
std::vector<RGBA8> expectedData =
GetExpectedData(config.textureDescriptor.format, noPaddingExtent3D);
wgpu::Origin3D firstLayerCopyOrigin = {config.copyOrigin3D.x, config.copyOrigin3D.y, 0};
for (uint32_t layer = config.copyOrigin3D.z;
layer < config.copyOrigin3D.z + config.copyExtent3D.depthOrArrayLayers; ++layer) {
wgpu::BindGroup bindGroup = CreateBindGroupForTest(
renderPipeline.GetBindGroupLayout(0), bcTexture, config.textureDescriptor.format,
layer, config.viewMipmapLevel);
VerifyCompressedTexturePixelValues(renderPipeline, bindGroup, virtualSizeAtLevel,
firstLayerCopyOrigin, noPaddingExtent3D,
expectedData);
}
}
// Create a texture and initialize it with the pre-prepared compressed texture data.
wgpu::Texture CreateTextureWithCompressedData(CopyConfig config) {
wgpu::Texture bcTexture = device.CreateTexture(&config.textureDescriptor);
InitializeDataInCompressedTexture(bcTexture, config);
return bcTexture;
}
// Record a texture-to-texture copy command into command encoder without finishing the encoding.
void RecordTextureToTextureCopy(wgpu::CommandEncoder encoder,
wgpu::Texture srcTexture,
wgpu::Texture dstTexture,
CopyConfig srcConfig,
CopyConfig dstConfig) {
wgpu::ImageCopyTexture imageCopyTextureSrc = utils::CreateImageCopyTexture(
srcTexture, srcConfig.viewMipmapLevel, srcConfig.copyOrigin3D);
wgpu::ImageCopyTexture imageCopyTextureDst = utils::CreateImageCopyTexture(
dstTexture, dstConfig.viewMipmapLevel, dstConfig.copyOrigin3D);
encoder.CopyTextureToTexture(&imageCopyTextureSrc, &imageCopyTextureDst,
&dstConfig.copyExtent3D);
}
wgpu::Texture CreateTextureFromTexture(wgpu::Texture srcTexture,
CopyConfig srcConfig,
CopyConfig dstConfig) {
wgpu::Texture dstTexture = device.CreateTexture(&dstConfig.textureDescriptor);
wgpu::CommandEncoder encoder = device.CreateCommandEncoder();
RecordTextureToTextureCopy(encoder, srcTexture, dstTexture, srcConfig, dstConfig);
wgpu::CommandBuffer copy = encoder.Finish();
queue.Submit(1, &copy);
return dstTexture;
}
// Return the pre-prepared one-block BC texture data.
static std::vector<uint8_t> GetOneBlockBCFormatTextureData(wgpu::TextureFormat bcFormat) {
switch (bcFormat) {
// The expected data represents 4x4 pixel images with the left side dark red and the
// right side dark green. We specify the same compressed data in both sRGB and non-sRGB
// tests, but the rendering result should be different because for sRGB formats, the
// red, green, and blue components are converted from an sRGB color space to a linear
// color space as part of filtering.
case wgpu::TextureFormat::BC1RGBAUnorm:
case wgpu::TextureFormat::BC1RGBAUnormSrgb:
return {0x0, 0xC0, 0x60, 0x6, 0x50, 0x50, 0x50, 0x50};
case wgpu::TextureFormat::BC7RGBAUnorm:
case wgpu::TextureFormat::BC7RGBAUnormSrgb:
return {0x50, 0x18, 0xfc, 0xf, 0x0, 0x30, 0xe3, 0xe1,
0xe1, 0xe1, 0xc1, 0xf, 0xfc, 0xc0, 0xf, 0xfc};
// The expected data represents 4x4 pixel images with the left side dark red and the
// right side dark green. The pixels in the left side of the block all have an alpha
// value equal to 0x88. We specify the same compressed data in both sRGB and non-sRGB
// tests, but the rendering result should be different because for sRGB formats, the
// red, green, and blue components are converted from an sRGB color space to a linear
// color space as part of filtering, and any alpha component is left unchanged.
case wgpu::TextureFormat::BC2RGBAUnorm:
case wgpu::TextureFormat::BC2RGBAUnormSrgb:
return {0x88, 0xFF, 0x88, 0xFF, 0x88, 0xFF, 0x88, 0xFF,
0x0, 0xC0, 0x60, 0x6, 0x50, 0x50, 0x50, 0x50};
case wgpu::TextureFormat::BC3RGBAUnorm:
case wgpu::TextureFormat::BC3RGBAUnormSrgb:
return {0x88, 0xFF, 0x40, 0x2, 0x24, 0x40, 0x2, 0x24,
0x0, 0xC0, 0x60, 0x6, 0x50, 0x50, 0x50, 0x50};
// The expected data represents 4x4 pixel images with the left side red and the
// right side black.
case wgpu::TextureFormat::BC4RSnorm:
return {0x7F, 0x0, 0x40, 0x2, 0x24, 0x40, 0x2, 0x24};
case wgpu::TextureFormat::BC4RUnorm:
return {0xFF, 0x0, 0x40, 0x2, 0x24, 0x40, 0x2, 0x24};
// The expected data represents 4x4 pixel images with the left side red and the right
// side green and was encoded with DirectXTex from Microsoft.
case wgpu::TextureFormat::BC5RGSnorm:
return {0x7f, 0x81, 0x40, 0x2, 0x24, 0x40, 0x2, 0x24,
0x7f, 0x81, 0x9, 0x90, 0x0, 0x9, 0x90, 0x0};
case wgpu::TextureFormat::BC5RGUnorm:
return {0xff, 0x0, 0x40, 0x2, 0x24, 0x40, 0x2, 0x24,
0xff, 0x0, 0x9, 0x90, 0x0, 0x9, 0x90, 0x0};
case wgpu::TextureFormat::BC6HRGBFloat:
return {0xe3, 0x1f, 0x0, 0x0, 0x0, 0xe0, 0x1f, 0x0,
0x0, 0xff, 0x0, 0xff, 0x0, 0xff, 0x0, 0xff};
case wgpu::TextureFormat::BC6HRGBUfloat:
return {0xe3, 0x3d, 0x0, 0x0, 0x0, 0xe0, 0x3d, 0x0,
0x0, 0xff, 0x0, 0xff, 0x0, 0xff, 0x0, 0xff};
default:
UNREACHABLE();
return {};
}
}
// Return the texture data that is decoded from the result of GetOneBlockBCFormatTextureData in
// RGBA8 formats.
static std::vector<RGBA8> GetExpectedData(wgpu::TextureFormat bcFormat,
const wgpu::Extent3D& testRegion) {
constexpr RGBA8 kDarkRed(198, 0, 0, 255);
constexpr RGBA8 kDarkGreen(0, 207, 0, 255);
constexpr RGBA8 kDarkRedSRGB(144, 0, 0, 255);
constexpr RGBA8 kDarkGreenSRGB(0, 159, 0, 255);
constexpr uint8_t kLeftAlpha = 0x88;
constexpr uint8_t kRightAlpha = 0xFF;
switch (bcFormat) {
case wgpu::TextureFormat::BC1RGBAUnorm:
case wgpu::TextureFormat::BC7RGBAUnorm:
return FillExpectedData(testRegion, kDarkRed, kDarkGreen);
case wgpu::TextureFormat::BC2RGBAUnorm:
case wgpu::TextureFormat::BC3RGBAUnorm: {
constexpr RGBA8 kLeftColor = RGBA8(kDarkRed.r, 0, 0, kLeftAlpha);
constexpr RGBA8 kRightColor = RGBA8(0, kDarkGreen.g, 0, kRightAlpha);
return FillExpectedData(testRegion, kLeftColor, kRightColor);
}
case wgpu::TextureFormat::BC1RGBAUnormSrgb:
case wgpu::TextureFormat::BC7RGBAUnormSrgb:
return FillExpectedData(testRegion, kDarkRedSRGB, kDarkGreenSRGB);
case wgpu::TextureFormat::BC2RGBAUnormSrgb:
case wgpu::TextureFormat::BC3RGBAUnormSrgb: {
constexpr RGBA8 kLeftColor = RGBA8(kDarkRedSRGB.r, 0, 0, kLeftAlpha);
constexpr RGBA8 kRightColor = RGBA8(0, kDarkGreenSRGB.g, 0, kRightAlpha);
return FillExpectedData(testRegion, kLeftColor, kRightColor);
}
case wgpu::TextureFormat::BC4RSnorm:
case wgpu::TextureFormat::BC4RUnorm:
return FillExpectedData(testRegion, RGBA8::kRed, RGBA8::kBlack);
case wgpu::TextureFormat::BC5RGSnorm:
case wgpu::TextureFormat::BC5RGUnorm:
case wgpu::TextureFormat::BC6HRGBFloat:
case wgpu::TextureFormat::BC6HRGBUfloat:
return FillExpectedData(testRegion, RGBA8::kRed, RGBA8::kGreen);
default:
UNREACHABLE();
return {};
}
}
static std::vector<RGBA8> FillExpectedData(const wgpu::Extent3D& testRegion,
RGBA8 leftColorInBlock,
RGBA8 rightColorInBlock) {
ASSERT(testRegion.depthOrArrayLayers == 1);
std::vector<RGBA8> expectedData(testRegion.width * testRegion.height, leftColorInBlock);
for (uint32_t y = 0; y < testRegion.height; ++y) {
for (uint32_t x = 0; x < testRegion.width; ++x) {
if (x % kBCBlockWidthInTexels >= kBCBlockWidthInTexels / 2) {
expectedData[testRegion.width * y + x] = rightColorInBlock;
}
}
}
return expectedData;
}
// Note: BC formats are only valid with 2D (array) textures.
static wgpu::Extent3D GetVirtualSizeAtLevel(const CopyConfig& config) {
return {config.textureDescriptor.size.width >> config.viewMipmapLevel,
config.textureDescriptor.size.height >> config.viewMipmapLevel,
config.textureDescriptor.size.depthOrArrayLayers};
}
static wgpu::Extent3D GetPhysicalSizeAtLevel(const CopyConfig& config) {
wgpu::Extent3D sizeAtLevel = GetVirtualSizeAtLevel(config);
sizeAtLevel.width = (sizeAtLevel.width + kBCBlockWidthInTexels - 1) /
kBCBlockWidthInTexels * kBCBlockWidthInTexels;
sizeAtLevel.height = (sizeAtLevel.height + kBCBlockHeightInTexels - 1) /
kBCBlockHeightInTexels * kBCBlockHeightInTexels;
return sizeAtLevel;
}
// The block width and height in texels are 4 for all BC formats.
static constexpr uint32_t kBCBlockWidthInTexels = 4;
static constexpr uint32_t kBCBlockHeightInTexels = 4;
static constexpr wgpu::TextureUsage kDefaultBCFormatTextureUsage =
wgpu::TextureUsage::Sampled | wgpu::TextureUsage::CopyDst;
bool mIsBCFormatSupported = false;
};
// Test copying into the whole BC texture with 2x2 blocks and sampling from it.
TEST_P(CompressedTextureBCFormatTest, Basic) {
// TODO(crbug.com/dawn/815): find out why this test fails on Windows Intel OpenGL drivers.
DAWN_SUPPRESS_TEST_IF(IsIntel() && IsOpenGL() && IsWindows());
DAWN_TEST_UNSUPPORTED_IF(!IsBCFormatSupported());
CopyConfig config;
config.textureDescriptor.usage = kDefaultBCFormatTextureUsage;
config.textureDescriptor.size = {8, 8, 1};
config.copyExtent3D = config.textureDescriptor.size;
for (wgpu::TextureFormat format : utils::kBCFormats) {
config.textureDescriptor.format = format;
TestCopyRegionIntoBCFormatTextures(config);
}
}
// Test copying into a sub-region of a texture with BC formats works correctly.
TEST_P(CompressedTextureBCFormatTest, CopyIntoSubRegion) {
DAWN_TEST_UNSUPPORTED_IF(!IsBCFormatSupported());
CopyConfig config;
config.textureDescriptor.usage = kDefaultBCFormatTextureUsage;
config.textureDescriptor.size = {8, 8, 1};
const wgpu::Origin3D kOrigin = {4, 4, 0};
const wgpu::Extent3D kExtent3D = {4, 4, 1};
config.copyOrigin3D = kOrigin;
config.copyExtent3D = kExtent3D;
for (wgpu::TextureFormat format : utils::kBCFormats) {
config.textureDescriptor.format = format;
TestCopyRegionIntoBCFormatTextures(config);
}
}
// Test copying into the non-zero layer of a 2D array texture with BC formats works correctly.
TEST_P(CompressedTextureBCFormatTest, CopyIntoNonZeroArrayLayer) {
// TODO(crbug.com/dawn/815): find out why this test fails on Windows Intel OpenGL drivers.
DAWN_SUPPRESS_TEST_IF(IsIntel() && IsOpenGL() && IsWindows());
DAWN_TEST_UNSUPPORTED_IF(!IsBCFormatSupported());
// This test uses glTextureView() which is not supported in OpenGL ES.
DAWN_TEST_UNSUPPORTED_IF(IsOpenGLES());
CopyConfig config;
config.textureDescriptor.usage = kDefaultBCFormatTextureUsage;
config.textureDescriptor.size = {8, 8, 1};
config.copyExtent3D = config.textureDescriptor.size;
constexpr uint32_t kArrayLayerCount = 3;
config.textureDescriptor.size.depthOrArrayLayers = kArrayLayerCount;
config.copyOrigin3D.z = kArrayLayerCount - 1;
for (wgpu::TextureFormat format : utils::kBCFormats) {
config.textureDescriptor.format = format;
TestCopyRegionIntoBCFormatTextures(config);
}
}
// Test copying into a non-zero mipmap level of a texture with BC texture formats.
TEST_P(CompressedTextureBCFormatTest, CopyBufferIntoNonZeroMipmapLevel) {
// TODO(crbug.com/dawn/815): find out why this test fails on Windows Intel OpenGL drivers.
DAWN_SUPPRESS_TEST_IF(IsIntel() && IsOpenGL() && IsWindows());
DAWN_TEST_UNSUPPORTED_IF(!IsBCFormatSupported());
// This test uses glTextureView() which is not supported in OpenGL ES.
DAWN_TEST_UNSUPPORTED_IF(IsOpenGLES());
CopyConfig config;
config.textureDescriptor.usage = kDefaultBCFormatTextureUsage;
config.textureDescriptor.size = {60, 60, 1};
constexpr uint32_t kMipmapLevelCount = 3;
config.textureDescriptor.mipLevelCount = kMipmapLevelCount;
config.viewMipmapLevel = kMipmapLevelCount - 1;
// The actual size of the texture at mipmap level == 2 is not a multiple of 4, paddings are
// required in the copies.
const wgpu::Extent3D textureSizeLevel0 = config.textureDescriptor.size;
const uint32_t kActualWidthAtLevel = textureSizeLevel0.width >> config.viewMipmapLevel;
const uint32_t kActualHeightAtLevel = textureSizeLevel0.height >> config.viewMipmapLevel;
ASSERT(kActualWidthAtLevel % kBCBlockWidthInTexels != 0);
ASSERT(kActualHeightAtLevel % kBCBlockHeightInTexels != 0);
const uint32_t kCopyWidthAtLevel = (kActualWidthAtLevel + kBCBlockWidthInTexels - 1) /
kBCBlockWidthInTexels * kBCBlockWidthInTexels;
const uint32_t kCopyHeightAtLevel = (kActualHeightAtLevel + kBCBlockHeightInTexels - 1) /
kBCBlockHeightInTexels * kBCBlockHeightInTexels;
config.copyExtent3D = {kCopyWidthAtLevel, kCopyHeightAtLevel, 1};
for (wgpu::TextureFormat format : utils::kBCFormats) {
config.textureDescriptor.format = format;
TestCopyRegionIntoBCFormatTextures(config);
}
}
// Test texture-to-texture whole-size copies with BC formats.
TEST_P(CompressedTextureBCFormatTest, CopyWholeTextureSubResourceIntoNonZeroMipmapLevel) {
// TODO(crbug.com/dawn/815): find out why this test fails on Windows Intel OpenGL drivers.
DAWN_SUPPRESS_TEST_IF(IsIntel() && IsOpenGL() && IsWindows());
DAWN_TEST_UNSUPPORTED_IF(!IsBCFormatSupported());
// This test uses glTextureView() which is not supported in OpenGL ES.
DAWN_TEST_UNSUPPORTED_IF(IsOpenGLES());
// TODO(crbug.com/dawn/816): This consistently fails on with the 12th pixel being opaque black
// instead of opaque red on Win10 FYI Release (NVIDIA GeForce GTX 1660).
DAWN_SUPPRESS_TEST_IF(IsWindows() && IsVulkan() && IsNvidia());
CopyConfig config;
config.textureDescriptor.size = {60, 60, 1};
constexpr uint32_t kMipmapLevelCount = 3;
config.textureDescriptor.mipLevelCount = kMipmapLevelCount;
config.viewMipmapLevel = kMipmapLevelCount - 1;
// The actual size of the texture at mipmap level == 2 is not a multiple of 4, paddings are
// required in the copies.
const wgpu::Extent3D kVirtualSize = GetVirtualSizeAtLevel(config);
const wgpu::Extent3D kPhysicalSize = GetPhysicalSizeAtLevel(config);
ASSERT_NE(0u, kVirtualSize.width % kBCBlockWidthInTexels);
ASSERT_NE(0u, kVirtualSize.height % kBCBlockHeightInTexels);
config.copyExtent3D = kPhysicalSize;
for (wgpu::TextureFormat format : utils::kBCFormats) {
// Create bcTextureSrc as the source texture and initialize it with pre-prepared BC
// compressed data.
config.textureDescriptor.format = format;
// Add the usage bit for both source and destination textures so that we don't need to
// create two copy configs.
config.textureDescriptor.usage =
wgpu::TextureUsage::CopySrc | wgpu::TextureUsage::CopyDst | wgpu::TextureUsage::Sampled;
wgpu::Texture bcTextureSrc = CreateTextureWithCompressedData(config);
// Create bcTexture and copy from the content in bcTextureSrc into it.
wgpu::Texture bcTextureDst = CreateTextureFromTexture(bcTextureSrc, config, config);
// Verify if we can use bcTexture as sampled textures correctly.
wgpu::RenderPipeline renderPipeline = CreateRenderPipelineForTest();
wgpu::BindGroup bindGroup =
CreateBindGroupForTest(renderPipeline.GetBindGroupLayout(0), bcTextureDst, format,
config.copyOrigin3D.z, config.viewMipmapLevel);
std::vector<RGBA8> expectedData = GetExpectedData(format, kVirtualSize);
VerifyCompressedTexturePixelValues(renderPipeline, bindGroup, kVirtualSize,
config.copyOrigin3D, kVirtualSize, expectedData);
}
}
// Test BC format texture-to-texture partial copies where the physical size of the destination
// subresource is different from its virtual size.
TEST_P(CompressedTextureBCFormatTest, CopyIntoSubresourceWithPhysicalSizeNotEqualToVirtualSize) {
DAWN_TEST_UNSUPPORTED_IF(!IsBCFormatSupported());
// TODO(crbug.com/dawn/817): add workaround on the T2T copies where Extent3D fits in one
// subresource and does not fit in another one on OpenGL.
DAWN_SUPPRESS_TEST_IF(IsOpenGL() || IsOpenGLES());
CopyConfig srcConfig;
srcConfig.textureDescriptor.size = {60, 60, 1};
srcConfig.viewMipmapLevel = srcConfig.textureDescriptor.mipLevelCount - 1;
const wgpu::Extent3D kSrcVirtualSize = GetVirtualSizeAtLevel(srcConfig);
CopyConfig dstConfig;
dstConfig.textureDescriptor.size = {60, 60, 1};
constexpr uint32_t kMipmapLevelCount = 3;
dstConfig.textureDescriptor.mipLevelCount = kMipmapLevelCount;
dstConfig.viewMipmapLevel = kMipmapLevelCount - 1;
// The actual size of the texture at mipmap level == 2 is not a multiple of 4, paddings are
// required in the copies.
const wgpu::Extent3D kDstVirtualSize = GetVirtualSizeAtLevel(dstConfig);
ASSERT_NE(0u, kDstVirtualSize.width % kBCBlockWidthInTexels);
ASSERT_NE(0u, kDstVirtualSize.height % kBCBlockHeightInTexels);
const wgpu::Extent3D kDstPhysicalSize = GetPhysicalSizeAtLevel(dstConfig);
srcConfig.copyExtent3D = dstConfig.copyExtent3D = kDstPhysicalSize;
ASSERT_LT(srcConfig.copyOrigin3D.x + srcConfig.copyExtent3D.width, kSrcVirtualSize.width);
ASSERT_LT(srcConfig.copyOrigin3D.y + srcConfig.copyExtent3D.height, kSrcVirtualSize.height);
for (wgpu::TextureFormat format : utils::kBCFormats) {
// Create bcTextureSrc as the source texture and initialize it with pre-prepared BC
// compressed data.
srcConfig.textureDescriptor.format = format;
srcConfig.textureDescriptor.usage =
wgpu::TextureUsage::CopySrc | wgpu::TextureUsage::CopyDst;
wgpu::Texture bcTextureSrc = CreateTextureWithCompressedData(srcConfig);
wgpu::ImageCopyTexture imageCopyTextureSrc = utils::CreateImageCopyTexture(
bcTextureSrc, srcConfig.viewMipmapLevel, srcConfig.copyOrigin3D);
// Create bcTexture and copy from the content in bcTextureSrc into it.
dstConfig.textureDescriptor.format = format;
dstConfig.textureDescriptor.usage = kDefaultBCFormatTextureUsage;
wgpu::Texture bcTextureDst = CreateTextureFromTexture(bcTextureSrc, srcConfig, dstConfig);
// Verify if we can use bcTexture as sampled textures correctly.
wgpu::RenderPipeline renderPipeline = CreateRenderPipelineForTest();
wgpu::BindGroup bindGroup =
CreateBindGroupForTest(renderPipeline.GetBindGroupLayout(0), bcTextureDst, format,
dstConfig.copyOrigin3D.z, dstConfig.viewMipmapLevel);
std::vector<RGBA8> expectedData = GetExpectedData(format, kDstVirtualSize);
VerifyCompressedTexturePixelValues(renderPipeline, bindGroup, kDstVirtualSize,
dstConfig.copyOrigin3D, kDstVirtualSize, expectedData);
}
}
// Test BC format texture-to-texture partial copies where the physical size of the source
// subresource is different from its virtual size.
TEST_P(CompressedTextureBCFormatTest, CopyFromSubresourceWithPhysicalSizeNotEqualToVirtualSize) {
DAWN_TEST_UNSUPPORTED_IF(!IsBCFormatSupported());
// TODO(crbug.com/dawn/817): add workaround on the T2T copies where Extent3D fits in one
// subresource and does not fit in another one on OpenGL.
DAWN_SUPPRESS_TEST_IF(IsOpenGL() || IsOpenGLES());
CopyConfig srcConfig;
srcConfig.textureDescriptor.size = {60, 60, 1};
constexpr uint32_t kMipmapLevelCount = 3;
srcConfig.textureDescriptor.mipLevelCount = kMipmapLevelCount;
srcConfig.viewMipmapLevel = srcConfig.textureDescriptor.mipLevelCount - 1;
// The actual size of the texture at mipmap level == 2 is not a multiple of 4, paddings are
// required in the copies.
const wgpu::Extent3D kSrcVirtualSize = GetVirtualSizeAtLevel(srcConfig);
ASSERT_NE(0u, kSrcVirtualSize.width % kBCBlockWidthInTexels);
ASSERT_NE(0u, kSrcVirtualSize.height % kBCBlockHeightInTexels);
CopyConfig dstConfig;
dstConfig.textureDescriptor.size = {16, 16, 1};
dstConfig.viewMipmapLevel = dstConfig.textureDescriptor.mipLevelCount - 1;
const wgpu::Extent3D kDstVirtualSize = GetVirtualSizeAtLevel(dstConfig);
srcConfig.copyExtent3D = dstConfig.copyExtent3D = kDstVirtualSize;
ASSERT_GT(srcConfig.copyOrigin3D.x + srcConfig.copyExtent3D.width, kSrcVirtualSize.width);
ASSERT_GT(srcConfig.copyOrigin3D.y + srcConfig.copyExtent3D.height, kSrcVirtualSize.height);
for (wgpu::TextureFormat format : utils::kBCFormats) {
srcConfig.textureDescriptor.format = dstConfig.textureDescriptor.format = format;
srcConfig.textureDescriptor.usage =
wgpu::TextureUsage::CopySrc | wgpu::TextureUsage::CopyDst;
dstConfig.textureDescriptor.usage = kDefaultBCFormatTextureUsage;
// Create bcTextureSrc as the source texture and initialize it with pre-prepared BC
// compressed data.
wgpu::Texture bcTextureSrc = CreateTextureWithCompressedData(srcConfig);
// Create bcTexture and copy from the content in bcTextureSrc into it.
wgpu::Texture bcTextureDst = CreateTextureFromTexture(bcTextureSrc, srcConfig, dstConfig);
// Verify if we can use bcTexture as sampled textures correctly.
wgpu::RenderPipeline renderPipeline = CreateRenderPipelineForTest();
wgpu::BindGroup bindGroup =
CreateBindGroupForTest(renderPipeline.GetBindGroupLayout(0), bcTextureDst, format,
dstConfig.copyOrigin3D.z, dstConfig.viewMipmapLevel);
std::vector<RGBA8> expectedData = GetExpectedData(format, kDstVirtualSize);
VerifyCompressedTexturePixelValues(renderPipeline, bindGroup, kDstVirtualSize,
dstConfig.copyOrigin3D, kDstVirtualSize, expectedData);
}
}
// Test recording two BC format texture-to-texture partial copies where the physical size of the
// source subresource is different from its virtual size into one command buffer.
TEST_P(CompressedTextureBCFormatTest, MultipleCopiesWithPhysicalSizeNotEqualToVirtualSize) {
DAWN_TEST_UNSUPPORTED_IF(!IsBCFormatSupported());
// TODO(crbug.com/dawn/817): add workaround on the T2T copies where Extent3D fits in one
// subresource and does not fit in another one on OpenGL.
DAWN_SUPPRESS_TEST_IF(IsOpenGL() || IsOpenGLES());
constexpr uint32_t kTotalCopyCount = 2;
std::array<CopyConfig, kTotalCopyCount> srcConfigs;
std::array<CopyConfig, kTotalCopyCount> dstConfigs;
constexpr uint32_t kSrcMipmapLevelCount0 = 3;
srcConfigs[0].textureDescriptor.size = {60, 60, 1};
srcConfigs[0].textureDescriptor.mipLevelCount = kSrcMipmapLevelCount0;
srcConfigs[0].viewMipmapLevel = srcConfigs[0].textureDescriptor.mipLevelCount - 1;
dstConfigs[0].textureDescriptor.size = {16, 16, 1};
dstConfigs[0].viewMipmapLevel = dstConfigs[0].textureDescriptor.mipLevelCount - 1;
srcConfigs[0].copyExtent3D = dstConfigs[0].copyExtent3D = GetVirtualSizeAtLevel(dstConfigs[0]);
const wgpu::Extent3D kSrcVirtualSize0 = GetVirtualSizeAtLevel(srcConfigs[0]);
ASSERT_NE(0u, kSrcVirtualSize0.width % kBCBlockWidthInTexels);
ASSERT_NE(0u, kSrcVirtualSize0.height % kBCBlockHeightInTexels);
constexpr uint32_t kDstMipmapLevelCount1 = 4;
srcConfigs[1].textureDescriptor.size = {8, 8, 1};
srcConfigs[1].viewMipmapLevel = srcConfigs[1].textureDescriptor.mipLevelCount - 1;
dstConfigs[1].textureDescriptor.size = {56, 56, 1};
dstConfigs[1].textureDescriptor.mipLevelCount = kDstMipmapLevelCount1;
dstConfigs[1].viewMipmapLevel = dstConfigs[1].textureDescriptor.mipLevelCount - 1;
srcConfigs[1].copyExtent3D = dstConfigs[1].copyExtent3D = GetVirtualSizeAtLevel(srcConfigs[1]);
std::array<wgpu::Extent3D, kTotalCopyCount> dstVirtualSizes;
for (uint32_t i = 0; i < kTotalCopyCount; ++i) {
dstVirtualSizes[i] = GetVirtualSizeAtLevel(dstConfigs[i]);
}
ASSERT_NE(0u, dstVirtualSizes[1].width % kBCBlockWidthInTexels);
ASSERT_NE(0u, dstVirtualSizes[1].height % kBCBlockHeightInTexels);
for (wgpu::TextureFormat format : utils::kBCFormats) {
std::array<wgpu::Texture, kTotalCopyCount> bcSrcTextures;
std::array<wgpu::Texture, kTotalCopyCount> bcDstTextures;
wgpu::CommandEncoder encoder = device.CreateCommandEncoder();
for (uint32_t i = 0; i < kTotalCopyCount; ++i) {
srcConfigs[i].textureDescriptor.format = dstConfigs[i].textureDescriptor.format =
format;
srcConfigs[i].textureDescriptor.usage =
wgpu::TextureUsage::CopySrc | wgpu::TextureUsage::CopyDst;
dstConfigs[i].textureDescriptor.usage = kDefaultBCFormatTextureUsage;
// Create bcSrcTextures as the source textures and initialize them with pre-prepared BC
// compressed data.
bcSrcTextures[i] = CreateTextureWithCompressedData(srcConfigs[i]);
bcDstTextures[i] = device.CreateTexture(&dstConfigs[i].textureDescriptor);
RecordTextureToTextureCopy(encoder, bcSrcTextures[i], bcDstTextures[i], srcConfigs[i],
dstConfigs[i]);
}
wgpu::CommandBuffer commandBuffer = encoder.Finish();
queue.Submit(1, &commandBuffer);
wgpu::RenderPipeline renderPipeline = CreateRenderPipelineForTest();
for (uint32_t i = 0; i < kTotalCopyCount; ++i) {
// Verify if we can use bcDstTextures as sampled textures correctly.
wgpu::BindGroup bindGroup0 = CreateBindGroupForTest(
renderPipeline.GetBindGroupLayout(0), bcDstTextures[i], format,
dstConfigs[i].copyOrigin3D.z, dstConfigs[i].viewMipmapLevel);
std::vector<RGBA8> expectedData = GetExpectedData(format, dstVirtualSizes[i]);
VerifyCompressedTexturePixelValues(renderPipeline, bindGroup0, dstVirtualSizes[i],
dstConfigs[i].copyOrigin3D, dstVirtualSizes[i],
expectedData);
}
}
}
// A regression test for a bug for the toggle UseTemporaryBufferInCompressedTextureToTextureCopy on
// Vulkan backend: test BC format texture-to-texture partial copies with multiple array layers
// where the physical size of the source subresource is different from its virtual size.
TEST_P(CompressedTextureBCFormatTest, CopyWithMultipleLayerAndPhysicalSizeNotEqualToVirtualSize) {
DAWN_TEST_UNSUPPORTED_IF(!IsBCFormatSupported());
// TODO(crbug.com/dawn/817): add workaround on the T2T copies where Extent3D fits in one
// subresource and does not fit in another one on OpenGL.
DAWN_SUPPRESS_TEST_IF(IsOpenGL() || IsOpenGLES());
constexpr uint32_t kArrayLayerCount = 5;
CopyConfig srcConfig;
srcConfig.textureDescriptor.size = {60, 60, kArrayLayerCount};
constexpr uint32_t kMipmapLevelCount = 3;
srcConfig.textureDescriptor.mipLevelCount = kMipmapLevelCount;
srcConfig.viewMipmapLevel = srcConfig.textureDescriptor.mipLevelCount - 1;
srcConfig.textureDescriptor.usage = wgpu::TextureUsage::CopySrc | wgpu::TextureUsage::CopyDst;
// The actual size of the texture at mipmap level == 2 is not a multiple of 4, paddings are
// required in the copies.
const wgpu::Extent3D kSrcVirtualSize = GetVirtualSizeAtLevel(srcConfig);
ASSERT_NE(0u, kSrcVirtualSize.width % kBCBlockWidthInTexels);
ASSERT_NE(0u, kSrcVirtualSize.height % kBCBlockHeightInTexels);
CopyConfig dstConfig;
dstConfig.textureDescriptor.size = {16, 16, kArrayLayerCount};
dstConfig.viewMipmapLevel = dstConfig.textureDescriptor.mipLevelCount - 1;
const wgpu::Extent3D kDstVirtualSize = GetVirtualSizeAtLevel(dstConfig);
srcConfig.copyExtent3D = dstConfig.copyExtent3D = kDstVirtualSize;
srcConfig.rowsPerImage = srcConfig.copyExtent3D.height / kBCBlockHeightInTexels;
ASSERT_GT(srcConfig.copyOrigin3D.x + srcConfig.copyExtent3D.width, kSrcVirtualSize.width);
ASSERT_GT(srcConfig.copyOrigin3D.y + srcConfig.copyExtent3D.height, kSrcVirtualSize.height);
for (wgpu::TextureFormat format : utils::kBCFormats) {
srcConfig.textureDescriptor.format = dstConfig.textureDescriptor.format = format;
srcConfig.bytesPerRowAlignment =
Align(srcConfig.copyExtent3D.width / kBCBlockWidthInTexels *
utils::GetTexelBlockSizeInBytes(format),
kTextureBytesPerRowAlignment);
dstConfig.textureDescriptor.usage = kDefaultBCFormatTextureUsage;
// Create bcTextureSrc as the source texture and initialize it with pre-prepared BC
// compressed data.
wgpu::Texture bcTextureSrc = CreateTextureWithCompressedData(srcConfig);
// Create bcTexture and copy from the content in bcTextureSrc into it.
wgpu::Texture bcTextureDst = CreateTextureFromTexture(bcTextureSrc, srcConfig, dstConfig);
// We use the render pipeline to test if each layer can be correctly sampled with the
// expected data.
wgpu::RenderPipeline renderPipeline = CreateRenderPipelineForTest();
const wgpu::Extent3D kExpectedDataRegionPerLayer = {kDstVirtualSize.width,
kDstVirtualSize.height, 1u};
std::vector<RGBA8> kExpectedDataPerLayer =
GetExpectedData(format, kExpectedDataRegionPerLayer);
const wgpu::Origin3D kCopyOriginPerLayer = {dstConfig.copyOrigin3D.x,
dstConfig.copyOrigin3D.y, 0};
for (uint32_t copyLayer = 0; copyLayer < kArrayLayerCount; ++copyLayer) {
wgpu::BindGroup bindGroup = CreateBindGroupForTest(
renderPipeline.GetBindGroupLayout(0), bcTextureDst, format,
dstConfig.copyOrigin3D.z + copyLayer, dstConfig.viewMipmapLevel);
VerifyCompressedTexturePixelValues(renderPipeline, bindGroup,
kExpectedDataRegionPerLayer, kCopyOriginPerLayer,
kExpectedDataRegionPerLayer, kExpectedDataPerLayer);
}
}
}
// Test the special case of the B2T copies on the D3D12 backend that the buffer offset and texture
// extent exactly fit the RowPitch.
TEST_P(CompressedTextureBCFormatTest, BufferOffsetAndExtentFitRowPitch) {
// TODO(crbug.com/dawn/815): find out why this test fails on Windows Intel OpenGL drivers.
DAWN_SUPPRESS_TEST_IF(IsIntel() && IsOpenGL() && IsWindows());
DAWN_TEST_UNSUPPORTED_IF(!IsBCFormatSupported());
CopyConfig config;
config.textureDescriptor.usage = kDefaultBCFormatTextureUsage;
config.textureDescriptor.size = {8, 8, 1};
config.copyExtent3D = config.textureDescriptor.size;
const uint32_t blockCountPerRow = config.textureDescriptor.size.width / kBCBlockWidthInTexels;
for (wgpu::TextureFormat format : utils::kBCFormats) {
config.textureDescriptor.format = format;
const uint32_t blockSizeInBytes = utils::GetTexelBlockSizeInBytes(format);
const uint32_t blockCountPerRowPitch = config.bytesPerRowAlignment / blockSizeInBytes;
config.bufferOffset = (blockCountPerRowPitch - blockCountPerRow) * blockSizeInBytes;
TestCopyRegionIntoBCFormatTextures(config);
}
}
// Test the special case of the B2T copies on the D3D12 backend that the buffer offset exceeds the
// slice pitch (slicePitch = bytesPerRow * (rowsPerImage / blockHeightInTexels)). On D3D12
// backend the texelOffset.y will be greater than 0 after calcuting the texelOffset in the function
// ComputeTexelOffsets().
TEST_P(CompressedTextureBCFormatTest, BufferOffsetExceedsSlicePitch) {
// TODO(crbug.com/dawn/815): find out why this test fails on Windows Intel OpenGL drivers.
DAWN_SUPPRESS_TEST_IF(IsIntel() && IsOpenGL() && IsWindows());
DAWN_TEST_UNSUPPORTED_IF(!IsBCFormatSupported());
CopyConfig config;
config.textureDescriptor.usage = kDefaultBCFormatTextureUsage;
config.textureDescriptor.size = {8, 8, 1};
config.copyExtent3D = config.textureDescriptor.size;
const wgpu::Extent3D textureSizeLevel0 = config.textureDescriptor.size;
const uint32_t blockCountPerRow = textureSizeLevel0.width / kBCBlockWidthInTexels;
const uint32_t slicePitchInBytes =
config.bytesPerRowAlignment * (textureSizeLevel0.height / kBCBlockHeightInTexels);
for (wgpu::TextureFormat format : utils::kBCFormats) {
config.textureDescriptor.format = format;
const uint32_t blockSizeInBytes = utils::GetTexelBlockSizeInBytes(format);
const uint32_t blockCountPerRowPitch = config.bytesPerRowAlignment / blockSizeInBytes;
config.bufferOffset = (blockCountPerRowPitch - blockCountPerRow) * blockSizeInBytes +
config.bytesPerRowAlignment + slicePitchInBytes;
TestCopyRegionIntoBCFormatTextures(config);
}
}
// Test the special case of the B2T copies on the D3D12 backend that the buffer offset and texture
// extent exceed the RowPitch. On D3D12 backend two copies are required for this case.
TEST_P(CompressedTextureBCFormatTest, CopyWithBufferOffsetAndExtentExceedRowPitch) {
// TODO(crbug.com/dawn/815): find out why this test fails on Windows Intel OpenGL drivers.
DAWN_SUPPRESS_TEST_IF(IsIntel() && IsOpenGL() && IsWindows());
DAWN_TEST_UNSUPPORTED_IF(!IsBCFormatSupported());
CopyConfig config;
config.textureDescriptor.usage = kDefaultBCFormatTextureUsage;
config.textureDescriptor.size = {8, 8, 1};
config.copyExtent3D = config.textureDescriptor.size;
const uint32_t blockCountPerRow = config.textureDescriptor.size.width / kBCBlockWidthInTexels;
constexpr uint32_t kExceedRowBlockCount = 1;
for (wgpu::TextureFormat format : utils::kBCFormats) {
config.textureDescriptor.format = format;
const uint32_t blockSizeInBytes = utils::GetTexelBlockSizeInBytes(format);
const uint32_t blockCountPerRowPitch = config.bytesPerRowAlignment / blockSizeInBytes;
config.bufferOffset =
(blockCountPerRowPitch - blockCountPerRow + kExceedRowBlockCount) * blockSizeInBytes;
TestCopyRegionIntoBCFormatTextures(config);
}
}
// Test the special case of the B2T copies on the D3D12 backend that the slicePitch is equal to the
// bytesPerRow. On D3D12 backend the texelOffset.z will be greater than 0 after calcuting the
// texelOffset in the function ComputeTexelOffsets().
TEST_P(CompressedTextureBCFormatTest, RowPitchEqualToSlicePitch) {
DAWN_TEST_UNSUPPORTED_IF(!IsBCFormatSupported());
CopyConfig config;
config.textureDescriptor.usage = kDefaultBCFormatTextureUsage;
config.textureDescriptor.size = {8, kBCBlockHeightInTexels, 1};
config.copyExtent3D = config.textureDescriptor.size;
const uint32_t blockCountPerRow = config.textureDescriptor.size.width / kBCBlockWidthInTexels;
const uint32_t slicePitchInBytes = config.bytesPerRowAlignment;
for (wgpu::TextureFormat format : utils::kBCFormats) {
config.textureDescriptor.format = format;
const uint32_t blockSizeInBytes = utils::GetTexelBlockSizeInBytes(format);
const uint32_t blockCountPerRowPitch = config.bytesPerRowAlignment / blockSizeInBytes;
config.bufferOffset =
(blockCountPerRowPitch - blockCountPerRow) * blockSizeInBytes + slicePitchInBytes;
TestCopyRegionIntoBCFormatTextures(config);
}
}
// Test the workaround in the B2T copies when (bufferSize - bufferOffset < bytesPerImage *
// copyExtent.depthOrArrayLayers) on Metal backends. As copyExtent.depthOrArrayLayers can only be 1
// for BC formats, on Metal backend we will use two copies to implement such copy.
TEST_P(CompressedTextureBCFormatTest, LargeImageHeight) {
// TODO(crbug.com/dawn/815): find out why this test fails on Windows Intel OpenGL drivers.
DAWN_SUPPRESS_TEST_IF(IsIntel() && IsOpenGL() && IsWindows());
DAWN_TEST_UNSUPPORTED_IF(!IsBCFormatSupported());
CopyConfig config;
config.textureDescriptor.usage = kDefaultBCFormatTextureUsage;
config.textureDescriptor.size = {8, 8, 1};
config.copyExtent3D = config.textureDescriptor.size;
config.rowsPerImage = config.textureDescriptor.size.height * 2 / kBCBlockHeightInTexels;
for (wgpu::TextureFormat format : utils::kBCFormats) {
config.textureDescriptor.format = format;
TestCopyRegionIntoBCFormatTextures(config);
}
}
// Test the workaround in the B2T copies when (bufferSize - bufferOffset < bytesPerImage *
// copyExtent.depthOrArrayLayers) and copyExtent needs to be clamped.
TEST_P(CompressedTextureBCFormatTest, LargeImageHeightAndClampedCopyExtent) {
// TODO(crbug.com/dawn/815): find out why this test fails on Windows Intel OpenGL drivers.
DAWN_SUPPRESS_TEST_IF(IsIntel() && IsOpenGL() && IsWindows());
DAWN_TEST_UNSUPPORTED_IF(!IsBCFormatSupported());
// This test uses glTextureView() which is not supported in OpenGL ES.
DAWN_TEST_UNSUPPORTED_IF(IsOpenGLES());
CopyConfig config;
config.textureDescriptor.usage = kDefaultBCFormatTextureUsage;
config.textureDescriptor.size = {56, 56, 1};
constexpr uint32_t kMipmapLevelCount = 3;
config.textureDescriptor.mipLevelCount = kMipmapLevelCount;
config.viewMipmapLevel = kMipmapLevelCount - 1;
// The actual size of the texture at mipmap level == 2 is not a multiple of 4, paddings are
// required in the copies.
const wgpu::Extent3D textureSizeLevel0 = config.textureDescriptor.size;
const uint32_t kActualWidthAtLevel = textureSizeLevel0.width >> config.viewMipmapLevel;
const uint32_t kActualHeightAtLevel = textureSizeLevel0.height >> config.viewMipmapLevel;
ASSERT(kActualWidthAtLevel % kBCBlockWidthInTexels != 0);
ASSERT(kActualHeightAtLevel % kBCBlockHeightInTexels != 0);
const uint32_t kCopyWidthAtLevel = (kActualWidthAtLevel + kBCBlockWidthInTexels - 1) /
kBCBlockWidthInTexels * kBCBlockWidthInTexels;
const uint32_t kCopyHeightAtLevel = (kActualHeightAtLevel + kBCBlockHeightInTexels - 1) /
kBCBlockHeightInTexels * kBCBlockHeightInTexels;
config.copyExtent3D = {kCopyWidthAtLevel, kCopyHeightAtLevel, 1};
config.rowsPerImage = kCopyHeightAtLevel * 2 / kBCBlockHeightInTexels;
for (wgpu::TextureFormat format : utils::kBCFormats) {
config.textureDescriptor.format = format;
TestCopyRegionIntoBCFormatTextures(config);
}
}
// Test copying a whole 2D array texture with array layer count > 1 in one copy command works with
// BC formats.
TEST_P(CompressedTextureBCFormatTest, CopyWhole2DArrayTexture) {
// TODO(crbug.com/dawn/815): find out why this test fails on Windows Intel OpenGL drivers.
DAWN_SUPPRESS_TEST_IF(IsIntel() && IsOpenGL() && IsWindows());
DAWN_TEST_UNSUPPORTED_IF(!IsBCFormatSupported());
// This test uses glTextureView() which is not supported in OpenGL ES.
DAWN_TEST_UNSUPPORTED_IF(IsOpenGLES());
constexpr uint32_t kArrayLayerCount = 3;
CopyConfig config;
config.textureDescriptor.usage = kDefaultBCFormatTextureUsage;
config.textureDescriptor.size = {8, 8, kArrayLayerCount};
config.rowsPerImage = 8;
config.copyExtent3D = config.textureDescriptor.size;
config.copyExtent3D.depthOrArrayLayers = kArrayLayerCount;
for (wgpu::TextureFormat format : utils::kBCFormats) {
config.textureDescriptor.format = format;
TestCopyRegionIntoBCFormatTextures(config);
}
}
// Test copying a multiple 2D texture array layers in one copy command works with BC formats.
TEST_P(CompressedTextureBCFormatTest, CopyMultiple2DArrayLayers) {
// TODO(crbug.com/dawn/815): find out why this test fails on Windows Intel OpenGL drivers.
DAWN_SUPPRESS_TEST_IF(IsIntel() && IsOpenGL() && IsWindows());
DAWN_TEST_UNSUPPORTED_IF(!IsBCFormatSupported());
// This test uses glTextureView() which is not supported in OpenGL ES.
DAWN_TEST_UNSUPPORTED_IF(IsOpenGLES());
constexpr uint32_t kArrayLayerCount = 3;
CopyConfig config;
config.textureDescriptor.usage = kDefaultBCFormatTextureUsage;
config.textureDescriptor.size = {8, 8, kArrayLayerCount};
config.rowsPerImage = 8;
constexpr uint32_t kCopyBaseArrayLayer = 1;
constexpr uint32_t kCopyLayerCount = 2;
config.copyOrigin3D = {0, 0, kCopyBaseArrayLayer};
config.copyExtent3D = config.textureDescriptor.size;
config.copyExtent3D.depthOrArrayLayers = kCopyLayerCount;
for (wgpu::TextureFormat format : utils::kBCFormats) {
config.textureDescriptor.format = format;
TestCopyRegionIntoBCFormatTextures(config);
}
}
// Testing a special code path: clearing a non-renderable texture when DynamicUploader
// is unaligned doesn't throw validation errors.
TEST_P(CompressedTextureBCFormatTest, UnalignedDynamicUploader) {
// CopyT2B for compressed texture formats is unimplemented on OpenGL.
DAWN_TEST_UNSUPPORTED_IF(IsOpenGL());
DAWN_TEST_UNSUPPORTED_IF(IsOpenGLES());
utils::UnalignDynamicUploader(device);
wgpu::TextureDescriptor textureDescriptor = {};
textureDescriptor.size = {4, 4, 1};
textureDescriptor.format = wgpu::TextureFormat::BC1RGBAUnorm;
textureDescriptor.usage = wgpu::TextureUsage::CopyDst | wgpu::TextureUsage::CopySrc;
wgpu::Texture texture = device.CreateTexture(&textureDescriptor);
wgpu::BufferDescriptor bufferDescriptor;
bufferDescriptor.size = 8;
bufferDescriptor.usage = wgpu::BufferUsage::CopySrc | wgpu::BufferUsage::CopyDst;
wgpu::Buffer buffer = device.CreateBuffer(&bufferDescriptor);
wgpu::ImageCopyTexture imageCopyTexture = utils::CreateImageCopyTexture(texture, 0, {0, 0, 0});
wgpu::ImageCopyBuffer imageCopyBuffer = utils::CreateImageCopyBuffer(buffer, 0, 256);
wgpu::Extent3D copyExtent = {4, 4, 1};
wgpu::CommandEncoder encoder = device.CreateCommandEncoder();
encoder.CopyTextureToBuffer(&imageCopyTexture, &imageCopyBuffer, &copyExtent);
wgpu::CommandBuffer commands = encoder.Finish();
queue.Submit(1, &commands);
}
DAWN_INSTANTIATE_TEST(CompressedTextureBCFormatTest,
D3D12Backend(),
MetalBackend(),
OpenGLBackend(),
OpenGLESBackend(),
VulkanBackend(),
VulkanBackend({"use_temporary_buffer_in_texture_to_texture_copy"}));
class CompressedTextureWriteTextureTest : public CompressedTextureBCFormatTest {
protected:
void SetUp() override {
CompressedTextureBCFormatTest::SetUp();
DAWN_TEST_UNSUPPORTED_IF(!IsBCFormatSupported());
}
// Write the compressed texture data into the destination texture as is specified in copyConfig.
void WriteToCompressedTexture(wgpu::Texture bcCompressedTexture, const CopyConfig& copyConfig) {
ASSERT(IsBCFormatSupported());
std::vector<uint8_t> data = UploadData(copyConfig);
wgpu::TextureDataLayout textureDataLayout = utils::CreateTextureDataLayout(
copyConfig.bufferOffset, copyConfig.bytesPerRowAlignment, copyConfig.rowsPerImage);
wgpu::ImageCopyTexture imageCopyTexture = utils::CreateImageCopyTexture(
bcCompressedTexture, copyConfig.viewMipmapLevel, copyConfig.copyOrigin3D);
queue.WriteTexture(&imageCopyTexture, data.data(), data.size(), &textureDataLayout,
&copyConfig.copyExtent3D);
}
// Run the tests that write pre-prepared BC format data into a BC texture and verifies if we
// can render correctly with the pixel values sampled from the BC texture.
void TestWriteRegionIntoBCFormatTextures(const CopyConfig& config) {
ASSERT(IsBCFormatSupported());
wgpu::Texture bcTexture = device.CreateTexture(&config.textureDescriptor);
WriteToCompressedTexture(bcTexture, config);
VerifyBCTexture(config, bcTexture);
}
};
// Test WriteTexture to a 2D texture with all parameters non-default
// with BC formats.
TEST_P(CompressedTextureWriteTextureTest, Basic) {
CopyConfig config;
config.textureDescriptor.usage = kDefaultBCFormatTextureUsage;
config.textureDescriptor.size = {20, 24, 1};
config.copyOrigin3D = {4, 8, 0};
config.copyExtent3D = {12, 16, 1};
config.bytesPerRowAlignment = 511;
config.rowsPerImage = 5;
for (wgpu::TextureFormat format : utils::kBCFormats) {
config.textureDescriptor.format = format;
TestWriteRegionIntoBCFormatTextures(config);
}
}
// Test writing to multiple 2D texture array layers with BC formats.
TEST_P(CompressedTextureWriteTextureTest, WriteMultiple2DArrayLayers) {
// TODO(crbug.com/dawn/593): This test uses glTextureView() which is not supported on OpenGL ES.
DAWN_TEST_UNSUPPORTED_IF(IsOpenGLES());
CopyConfig config;
config.textureDescriptor.usage = kDefaultBCFormatTextureUsage;
config.textureDescriptor.size = {20, 24, 9};
config.copyOrigin3D = {4, 8, 3};
config.copyExtent3D = {12, 16, 6};
config.bytesPerRowAlignment = 511;
config.rowsPerImage = 5;
for (wgpu::TextureFormat format : utils::kBCFormats) {
config.textureDescriptor.format = format;
TestWriteRegionIntoBCFormatTextures(config);
}
}
// Test BC format write textures where the physical size of the destination
// subresource is different from its virtual size.
TEST_P(CompressedTextureWriteTextureTest,
WriteIntoSubresourceWithPhysicalSizeNotEqualToVirtualSize) {
// TODO(crbug.com/dawn/593): This test uses glTextureView() which is not supported on OpenGL ES.
DAWN_TEST_UNSUPPORTED_IF(IsOpenGLES());
// Texture virtual size at mipLevel 2 will be {15, 15, 1} while the physical
// size will be {16, 16, 1}.
// Setting copyExtent.width or copyExtent.height to 16 fits in
// the texture physical size, but doesn't fit in the virtual size.
for (unsigned int w : {12, 16}) {
for (unsigned int h : {12, 16}) {
for (wgpu::TextureFormat format : utils::kBCFormats) {
CopyConfig config;
config.textureDescriptor.usage = kDefaultBCFormatTextureUsage;
config.textureDescriptor.size = {60, 60, 1};
config.textureDescriptor.mipLevelCount = 4;
config.viewMipmapLevel = 2;
config.copyOrigin3D = {0, 0, 0};
config.copyExtent3D = {w, h, 1};
config.bytesPerRowAlignment = 256;
config.textureDescriptor.format = format;
TestWriteRegionIntoBCFormatTextures(config);
}
}
}
}
DAWN_INSTANTIATE_TEST(CompressedTextureWriteTextureTest,
D3D12Backend(),
MetalBackend(),
OpenGLBackend(),
OpenGLESBackend(),
VulkanBackend());