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// Copyright 2017 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_NATIVE_PIPELINE_H_
#define SRC_DAWN_NATIVE_PIPELINE_H_
#include <array>
#include <bitset>
#include <map>
#include <string>
#include <vector>
#include "dawn/native/CachedObject.h"
#include "dawn/native/Forward.h"
#include "dawn/native/ObjectBase.h"
#include "dawn/native/PerStage.h"
#include "dawn/native/PipelineLayout.h"
#include "dawn/native/ShaderModule.h"
#include "dawn/native/dawn_platform.h"
namespace dawn::native {
ResultOrError<ShaderModuleEntryPoint> ValidateProgrammableStage(DeviceBase* device,
const ShaderModuleBase* module,
const char* entryPointName,
uint32_t constantCount,
const ConstantEntry* constants,
const PipelineLayoutBase* layout,
SingleShaderStage stage);
WGPUCreatePipelineAsyncStatus CreatePipelineAsyncStatusFromErrorType(InternalErrorType error);
struct ProgrammableStage {
Ref<ShaderModuleBase> module;
std::string entryPoint;
// The metadata lives as long as module, that's ref-ed in the same structure.
const EntryPointMetadata* metadata = nullptr;
PipelineConstantEntries constants;
};
class PipelineBase : public ApiObjectBase, public CachedObject {
public:
~PipelineBase() override;
PipelineLayoutBase* GetLayout();
const PipelineLayoutBase* GetLayout() const;
const RequiredBufferSizes& GetMinBufferSizes() const;
const ProgrammableStage& GetStage(SingleShaderStage stage) const;
const PerStage<ProgrammableStage>& GetAllStages() const;
bool HasStage(SingleShaderStage stage) const;
wgpu::ShaderStage GetStageMask() const;
ResultOrError<Ref<BindGroupLayoutBase>> GetBindGroupLayout(uint32_t groupIndex);
// Helper functions for std::unordered_map-based pipeline caches.
size_t ComputeContentHash() override;
static bool EqualForCache(const PipelineBase* a, const PipelineBase* b);
// Implementation of the API entrypoint. Do not use in a reentrant manner.
BindGroupLayoutBase* APIGetBindGroupLayout(uint32_t groupIndex);
// Initialize() should only be called once by the frontend.
virtual MaybeError Initialize() = 0;
protected:
PipelineBase(DeviceBase* device,
PipelineLayoutBase* layout,
const char* label,
std::vector<StageAndDescriptor> stages);
PipelineBase(DeviceBase* device, ObjectBase::ErrorTag tag, const char* label);
private:
MaybeError ValidateGetBindGroupLayout(BindGroupIndex group);
wgpu::ShaderStage mStageMask = wgpu::ShaderStage::None;
PerStage<ProgrammableStage> mStages;
Ref<PipelineLayoutBase> mLayout;
RequiredBufferSizes mMinBufferSizes;
};
} // namespace dawn::native
#endif // SRC_DAWN_NATIVE_PIPELINE_H_