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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.
#ifndef DAWNNATIVE_METAL_UTILSMETAL_H_
#define DAWNNATIVE_METAL_UTILSMETAL_H_
#include "dawn_native/dawn_platform.h"
#include "dawn_native/metal/DeviceMTL.h"
#include "dawn_native/metal/ShaderModuleMTL.h"
#include "dawn_native/metal/TextureMTL.h"
#import <Metal/Metal.h>
namespace dawn_native {
struct ProgrammableStage;
struct EntryPointMetadata;
enum class SingleShaderStage;
}
namespace dawn_native { namespace metal {
MTLCompareFunction ToMetalCompareFunction(wgpu::CompareFunction compareFunction);
struct TextureBufferCopySplit {
static constexpr uint32_t kMaxTextureBufferCopyRegions = 3;
struct CopyInfo {
NSUInteger bufferOffset;
NSUInteger bytesPerRow;
NSUInteger bytesPerImage;
Origin3D textureOrigin;
Extent3D copyExtent;
};
uint32_t count = 0;
std::array<CopyInfo, kMaxTextureBufferCopyRegions> copies;
auto begin() const {
return copies.begin();
}
auto end() const {
return copies.begin() + count;
}
};
TextureBufferCopySplit ComputeTextureBufferCopySplit(const Texture* texture,
uint32_t mipLevel,
Origin3D origin,
Extent3D copyExtent,
uint64_t bufferSize,
uint64_t bufferOffset,
uint32_t bytesPerRow,
uint32_t rowsPerImage,
Aspect aspect);
void EnsureDestinationTextureInitialized(CommandRecordingContext* commandContext,
Texture* texture,
const TextureCopy& dst,
const Extent3D& size);
MTLBlitOption ComputeMTLBlitOption(const Format& format, Aspect aspect);
// Helper function to create function with constant values wrapped in
// if available branch
MaybeError CreateMTLFunction(const ProgrammableStage& programmableStage,
SingleShaderStage singleShaderStage,
PipelineLayout* pipelineLayout,
ShaderModule::MetalFunctionData* functionData,
uint32_t sampleMask = 0xFFFFFFFF,
const RenderPipeline* renderPipeline = nullptr);
}} // namespace dawn_native::metal
#endif // DAWNNATIVE_METAL_UTILSMETAL_H_