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// Copyright 2017 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_COMMANDBUFFER_H_
#define DAWNNATIVE_COMMANDBUFFER_H_
#include "dawn_native/dawn_platform.h"
#include "dawn_native/Builder.h"
#include "dawn_native/CommandAllocator.h"
#include "dawn_native/Error.h"
#include "dawn_native/ObjectBase.h"
#include "dawn_native/PassResourceUsage.h"
#include <memory>
#include <set>
#include <utility>
namespace dawn_native {
class BindGroupBase;
class BufferBase;
class FramebufferBase;
class DeviceBase;
class PipelineBase;
class RenderPassBase;
class TextureBase;
class CommandBufferBuilder;
class CommandBufferBase : public ObjectBase {
public:
CommandBufferBase(CommandBufferBuilder* builder);
const CommandBufferResourceUsage& GetResourceUsages() const;
private:
CommandBufferResourceUsage mResourceUsages;
};
class CommandBufferBuilder : public Builder<CommandBufferBase> {
public:
CommandBufferBuilder(DeviceBase* device);
~CommandBufferBuilder();
MaybeError ValidateGetResult();
CommandIterator AcquireCommands();
CommandBufferResourceUsage AcquireResourceUsages();
// Dawn API
ComputePassEncoderBase* BeginComputePass();
RenderPassEncoderBase* BeginRenderPass(RenderPassDescriptorBase* info);
void CopyBufferToBuffer(BufferBase* source,
uint32_t sourceOffset,
BufferBase* destination,
uint32_t destinationOffset,
uint32_t size);
void CopyBufferToTexture(const BufferCopyView* source,
const TextureCopyView* destination,
const Extent3D* copySize);
void CopyTextureToBuffer(const TextureCopyView* source,
const BufferCopyView* destination,
const Extent3D* copySize);
// Functions to interact with the encoders
bool ConsumedError(MaybeError maybeError) {
if (DAWN_UNLIKELY(maybeError.IsError())) {
ConsumeError(maybeError.AcquireError());
return true;
}
return false;
}
void PassEnded();
private:
friend class CommandBufferBase;
enum class EncodingState : uint8_t;
EncodingState mEncodingState;
CommandBufferBase* GetResultImpl() override;
void MoveToIterator();
MaybeError ValidateComputePass();
MaybeError ValidateRenderPass(RenderPassDescriptorBase* renderPass);
MaybeError ValidateCanRecordTopLevelCommands() const;
void ConsumeError(ErrorData* error);
CommandAllocator mAllocator;
CommandIterator mIterator;
bool mWasMovedToIterator = false;
bool mWereCommandsAcquired = false;
bool mWereResourceUsagesAcquired = false;
CommandBufferResourceUsage mResourceUsages;
};
} // namespace dawn_native
#endif // DAWNNATIVE_COMMANDBUFFER_H_