src/dawn_native/CommandBuffer.h

// 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/CommandAllocator.h"
#include "dawn_native/Error.h"
#include "dawn_native/Forward.h"
#include "dawn_native/ObjectBase.h"
#include "dawn_native/PassResourceUsage.h"
#include "dawn_native/Texture.h"

namespace dawn_native {

    struct BeginRenderPassCmd;
    struct CopyTextureToBufferCmd;
    struct TextureCopy;

    class CommandBufferBase : public ApiObjectBase {
      public:
        CommandBufferBase(CommandEncoder* encoder, const CommandBufferDescriptor* descriptor);

        static CommandBufferBase* MakeError(DeviceBase* device);

        ObjectType GetType() const override;

        MaybeError ValidateCanUseInSubmitNow() const;

        const CommandBufferResourceUsage& GetResourceUsages() const;

        CommandIterator* GetCommandIteratorForTesting();

      protected:
        // Constructor used only for mocking and testing.
        CommandBufferBase(DeviceBase* device);
        void DestroyImpl() override;

        CommandIterator mCommands;

      private:
        CommandBufferBase(DeviceBase* device, ObjectBase::ErrorTag tag);

        CommandBufferResourceUsage mResourceUsages;
    };

    bool IsCompleteSubresourceCopiedTo(const TextureBase* texture,
                                       const Extent3D copySize,
                                       const uint32_t mipLevel);
    SubresourceRange GetSubresourcesAffectedByCopy(const TextureCopy& copy,
                                                   const Extent3D& copySize);

    void LazyClearRenderPassAttachments(BeginRenderPassCmd* renderPass);

    bool IsFullBufferOverwrittenInTextureToBufferCopy(const CopyTextureToBufferCmd* copy);

    std::array<float, 4> ConvertToFloatColor(dawn_native::Color color);
    std::array<int32_t, 4> ConvertToSignedIntegerColor(dawn_native::Color color);
    std::array<uint32_t, 4> ConvertToUnsignedIntegerColor(dawn_native::Color color);

}  // namespace dawn_native

#endif  // DAWNNATIVE_COMMANDBUFFER_H_