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* Copyright 2018 Google Inc.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
#ifndef SkImage_GpuYUVA_DEFINED
#define SkImage_GpuYUVA_DEFINED
#include "include/gpu/GrBackendSurface.h"
#include "include/gpu/GrContext.h"
#include "src/core/SkCachedData.h"
#include "src/image/SkImage_GpuBase.h"
class GrTexture;
struct SkYUVASizeInfo;
// Wraps the 3 or 4 planes of a YUVA image for consumption by the GPU.
// Initially any direct rendering will be done by passing the individual planes to a shader.
// Once any method requests a flattened image (e.g., onReadPixels), the flattened RGB
// proxy will be stored and used for any future rendering.
class SkImage_GpuYUVA : public SkImage_GpuBase {
friend class GrYUVAImageTextureMaker;
SkISize size,
uint32_t uniqueID,
GrSurfaceProxyView views[],
int numViews,
const SkYUVAIndex[4],
GrSemaphoresSubmitted onFlush(GrContext*, const GrFlushInfo&) override;
// This returns the single backing proxy if the YUV channels have already been flattened but
// nullptr if they have not.
GrTextureProxy* peekProxy() const override;
const GrSurfaceProxyView* view(GrRecordingContext* context) const override;
bool onIsTextureBacked() const override {
SkASSERT(fViews[0].proxy() || fRGBView.proxy());
return true;
sk_sp<SkImage> onMakeColorTypeAndColorSpace(GrRecordingContext*,
SkColorType, sk_sp<SkColorSpace>) const final;
sk_sp<SkImage> onReinterpretColorSpace(sk_sp<SkColorSpace>) const final;
virtual bool isYUVA() const override { return true; }
bool setupMipmapsForPlanes(GrRecordingContext*) const;
// Returns a ref-ed texture proxy view with miplevels
GrSurfaceProxyView refMippedView(GrRecordingContext*) const;
bool testingOnly_IsFlattened() const {
// We should only have the flattened proxy or the planar proxies at one point in time.
SkASSERT(SkToBool(fRGBView.proxy()) != SkToBool(fViews[0].proxy()));
return SkToBool(fRGBView.proxy());
* This is the implementation of SkDeferredDisplayListRecorder::makeYUVAPromiseTexture.
static sk_sp<SkImage> MakePromiseYUVATexture(GrContext* context,
SkYUVColorSpace yuvColorSpace,
const GrBackendFormat yuvaFormats[],
const SkISize yuvaSizes[],
const SkYUVAIndex yuvaIndices[4],
int width,
int height,
GrSurfaceOrigin imageOrigin,
sk_sp<SkColorSpace> imageColorSpace,
PromiseImageTextureFulfillProc textureFulfillProc,
PromiseImageTextureReleaseProc textureReleaseProc,
PromiseImageTextureDoneProc textureDoneProc,
PromiseImageTextureContext textureContexts[],
SkImage_GpuYUVA(const SkImage_GpuYUVA* image, sk_sp<SkColorSpace>);
void flattenToRGB(GrRecordingContext*) const;
// This array will usually only be sparsely populated.
// The actual non-null fields are dictated by the 'fYUVAIndices' indices
mutable GrSurfaceProxyView fViews[4];
int fNumViews;
SkYUVAIndex fYUVAIndices[4];
const SkYUVColorSpace fYUVColorSpace;
GrSurfaceOrigin fOrigin;
// If this is non-null then the planar data should be converted from fFromColorSpace to
// this->colorSpace(). Otherwise we assume the planar data (post YUV->RGB conversion) is already
// in this->colorSpace().
const sk_sp<SkColorSpace> fFromColorSpace;
// Repeated calls to onMakeColorSpace will result in a proliferation of unique IDs and
// SkImage_GpuYUVA instances. Cache the result of the last successful onMakeColorSpace call.
mutable sk_sp<SkColorSpace> fOnMakeColorSpaceTarget;
mutable sk_sp<SkImage> fOnMakeColorSpaceResult;
// This is only allocated when the image needs to be flattened rather than
// using the separate YUVA planes. From thence forth we will only use the
// the RGBView.
mutable GrSurfaceProxyView fRGBView;
typedef SkImage_GpuBase INHERITED;