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// Copyright 2020 The Dawn & Tint Authors
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this
// list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#ifndef SRC_DAWN_UTILS_TESTUTILS_H_
#define SRC_DAWN_UTILS_TESTUTILS_H_
#include <functional>
#include <ostream>
#include "dawn/webgpu_cpp.h"
namespace dawn::utils {
struct RGBA8 {
constexpr RGBA8() : RGBA8(0, 0, 0, 0) {}
constexpr RGBA8(uint8_t r, uint8_t g, uint8_t b, uint8_t a) : r(r), g(g), b(b), a(a) {}
bool operator==(const RGBA8& other) const;
bool operator!=(const RGBA8& other) const;
bool operator<=(const RGBA8& other) const;
bool operator>=(const RGBA8& other) const;
uint8_t r, g, b, a;
static const RGBA8 kZero;
static const RGBA8 kBlack;
static const RGBA8 kRed;
static const RGBA8 kGreen;
static const RGBA8 kBlue;
static const RGBA8 kYellow;
static const RGBA8 kWhite;
};
std::ostream& operator<<(std::ostream& stream, const RGBA8& color);
struct TextureDataCopyLayout {
uint64_t byteLength;
uint64_t texelBlockCount;
uint32_t bytesPerRow;
uint32_t rowsPerImage;
uint32_t texelBlocksPerRow;
uint32_t bytesPerImage;
uint32_t texelBlocksPerImage;
wgpu::Extent3D mipSize;
};
uint32_t GetMinimumBytesPerRow(wgpu::TextureFormat format, uint32_t width);
TextureDataCopyLayout GetTextureDataCopyLayoutForTextureAtLevel(
wgpu::TextureFormat format,
wgpu::Extent3D textureSizeAtLevel0,
uint32_t mipmapLevel,
wgpu::TextureDimension dimension = wgpu::TextureDimension::e2D,
uint32_t rowsPerImage = wgpu::kCopyStrideUndefined);
uint64_t RequiredBytesInCopy(uint64_t bytesPerRow,
uint64_t rowsPerImage,
wgpu::Extent3D copyExtent,
wgpu::TextureFormat textureFormat);
uint64_t RequiredBytesInCopy(uint64_t bytesPerRow,
uint64_t rowsPerImage,
uint64_t widthInBlocks,
uint64_t heightInBlocks,
uint64_t depth,
uint64_t bytesPerBlock);
uint64_t GetTexelCountInCopyRegion(uint64_t bytesPerRow,
uint64_t rowsPerImage,
wgpu::Extent3D copyExtent,
wgpu::TextureFormat textureFormat);
// A helper function used for testing DynamicUploader offset alignment.
// A call of this function will do a Queue::WriteTexture with 1 byte of data,
// so that assuming that WriteTexture uses DynamicUploader, the first RingBuffer
// in it will contain 1 byte of data.
void UnalignDynamicUploader(wgpu::Device device);
uint32_t VertexFormatSize(wgpu::VertexFormat format);
void RunInParallel(uint32_t numThreads,
const std::function<void(uint32_t)>& workerFunc,
const std::function<void()>& mainThreadFunc = nullptr);
} // namespace dawn::utils
#endif // SRC_DAWN_UTILS_TESTUTILS_H_