CopyTask.h

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/*
 * Copyright 2021 Google LLC
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */
 
#ifndef skgpu_graphite_task_CopyTask_DEFINED
#define skgpu_graphite_task_CopyTask_DEFINED
 
#include "src/gpu/graphite/task/Task.h"
 
#include "include/core/SkRect.h"
 
namespace skgpu::graphite {
 
class Buffer;
class Texture;
class TextureProxy;
 
class CopyBufferToBufferTask final : public Task {
public:
    // The srcBuffer for this Task is always a transfer buffer which is owned by the
    // UploadBufferManager. Thus we don't have to take a ref to it as the UploadBufferManager will
    // handle its refs and passing them to the Recording.
    static sk_sp<CopyBufferToBufferTask> Make(const Buffer* srcBuffer,
                                              size_t srcOffset,
                                              sk_sp<Buffer> dstBuffer,
                                              size_t dstOffset,
                                              size_t size);
 
    ~CopyBufferToBufferTask() override;
 
    Status prepareResources(ResourceProvider*, const RuntimeEffectDictionary*) override;
 
    Status addCommands(Context*, CommandBuffer*, ReplayTargetData) override;
 
private:
    CopyBufferToBufferTask(const Buffer* srcBuffer,
                           size_t srcOffset,
                           sk_sp<Buffer> dstBuffer,
                           size_t dstOffset,
                           size_t size);
 
    const Buffer* fSrcBuffer;
    size_t        fSrcOffset;
    sk_sp<Buffer> fDstBuffer;
    size_t        fDstOffset;
    size_t        fSize;
};
 
class CopyTextureToBufferTask final : public Task {
public:
    static sk_sp<CopyTextureToBufferTask> Make(sk_sp<TextureProxy>,
                                               SkIRect srcRect,
                                               sk_sp<Buffer>,
                                               size_t bufferOffset,
                                               size_t bufferRowBytes);
 
    ~CopyTextureToBufferTask() override;
 
    Status prepareResources(ResourceProvider*, const RuntimeEffectDictionary*) override;
 
    Status addCommands(Context*, CommandBuffer*, ReplayTargetData) override;
 
private:
    CopyTextureToBufferTask(sk_sp<TextureProxy>,
                            SkIRect srcRect,
                            sk_sp<Buffer>,
                            size_t bufferOffset,
                            size_t bufferRowBytes);
 
    sk_sp<TextureProxy> fTextureProxy;
    SkIRect fSrcRect;
    sk_sp<Buffer> fBuffer;
    size_t fBufferOffset;
    size_t fBufferRowBytes;
};
 
class CopyTextureToTextureTask final : public Task {
public:
    static sk_sp<CopyTextureToTextureTask> Make(sk_sp<TextureProxy> srcProxy,
                                                SkIRect srcRect,
                                                sk_sp<TextureProxy> dstProxy,
                                                SkIPoint dstPoint,
                                                int dstLevel = 0);
 
    ~CopyTextureToTextureTask() override;
 
    Status prepareResources(ResourceProvider*, const RuntimeEffectDictionary*) override;
 
    Status addCommands(Context*, CommandBuffer*, ReplayTargetData) override;
 
private:
    CopyTextureToTextureTask(sk_sp<TextureProxy> srcProxy,
                             SkIRect srcRect,
                             sk_sp<TextureProxy> dstProxy,
                             SkIPoint dstPoint,
                             int dstLevel);
 
    sk_sp<TextureProxy> fSrcProxy;
    SkIRect fSrcRect;
    sk_sp<TextureProxy> fDstProxy;
    SkIPoint fDstPoint;
    int fDstLevel;
};
 
} // namespace skgpu::graphite
 
#endif // skgpu_graphite_task_CopyTask_DEFINED