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// Copyright 2020 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
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// See the License for the specific language governing permissions and
// limitations under the License.
#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