blob: da8b71fc5e579727df0192d3851c678f5509c1c6 [file] [log] [blame]
* Copyright 2012 Google Inc.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
#ifndef SkImage_Base_DEFINED
#define SkImage_Base_DEFINED
#include "include/core/SkImage.h"
#include "include/core/SkSurface.h"
#include <atomic>
#include "include/private/SkTDArray.h"
#include "src/gpu/GrSurfaceProxyView.h"
#include "src/gpu/GrTextureProxy.h"
class GrRecordingContext;
class GrTexture;
#include <new>
class GrSamplerState;
class SkCachedData;
struct SkYUVASizeInfo;
enum {
kNeedNewImageUniqueID = 0
class SkImage_Base : public SkImage {
virtual ~SkImage_Base();
virtual SkIRect onGetSubset() const {
return { 0, 0, this->width(), this->height() };
virtual bool onPeekPixels(SkPixmap*) const { return false; }
virtual const SkBitmap* onPeekBitmap() const { return nullptr; }
virtual bool onReadPixels(const SkImageInfo& dstInfo, void* dstPixels, size_t dstRowBytes,
int srcX, int srcY, CachingHint) const = 0;
* Default implementation does a rescale/read and then calls the callback.
virtual void onAsyncRescaleAndReadPixels(const SkImageInfo&,
const SkIRect& srcRect,
* Default implementation does a rescale/read/yuv conversion and then calls the callback.
virtual void onAsyncRescaleAndReadPixelsYUV420(SkYUVColorSpace,
sk_sp<SkColorSpace> dstColorSpace,
const SkIRect& srcRect,
const SkISize& dstSize,
virtual GrContext* context() const { return nullptr; }
virtual GrSemaphoresSubmitted onFlush(GrContext* context, const GrFlushInfo&) {
return GrSemaphoresSubmitted::kNo;
// Return the proxy if this image is backed by a single proxy. For YUVA images, this
// will return nullptr unless the YUVA planes have been converted to RGBA in which case
// that single backing proxy will be returned.
virtual GrTextureProxy* peekProxy() const { return nullptr; }
// If it exists, this returns a pointer to the GrSurfaceProxyView of image. The caller does not
// own the returned view and must copy it if they want to gain a ref to the internal proxy.
// If the returned view is not null, then it is guaranteed to have a valid proxy. Additionally
// this call will flatten a SkImage_GpuYUV to a single texture.
virtual const GrSurfaceProxyView* view(GrRecordingContext*) const { return nullptr; }
virtual GrSurfaceProxyView refView(GrRecordingContext*, GrMipMapped) const = 0;
virtual GrSurfaceProxyView refPinnedView(GrRecordingContext*, uint32_t* uniqueID) const {
return {};
virtual bool isYUVA() const { return false; }
virtual GrBackendTexture onGetBackendTexture(bool flushPendingGrContextIO,
GrSurfaceOrigin* origin) const;
// return a read-only copy of the pixels. We promise to not modify them,
// but only inspect them (or encode them).
virtual bool getROPixels(SkBitmap*, CachingHint = kAllow_CachingHint) const = 0;
virtual sk_sp<SkImage> onMakeSubset(GrRecordingContext*, const SkIRect&) const = 0;
virtual sk_sp<SkCachedData> getPlanes(SkYUVASizeInfo*, SkYUVAIndex[4],
SkYUVColorSpace*, const void* planes[4]);
virtual sk_sp<SkData> onRefEncoded() const { return nullptr; }
virtual bool onAsLegacyBitmap(SkBitmap*) const;
// True for picture-backed and codec-backed
virtual bool onIsLazyGenerated() const { return false; }
// True for images instantiated in GPU memory
virtual bool onIsTextureBacked() const { return false; }
// Call when this image is part of the key to a resourcecache entry. This allows the cache
// to know automatically those entries can be purged when this SkImage deleted.
virtual void notifyAddedToRasterCache() const {;
virtual bool onIsValid(GrContext*) const = 0;
virtual bool onPinAsTexture(GrContext*) const { return false; }
virtual void onUnpinAsTexture(GrContext*) const {}
virtual sk_sp<SkImage> onMakeColorTypeAndColorSpace(GrRecordingContext*,
SkColorType, sk_sp<SkColorSpace>) const = 0;
virtual sk_sp<SkImage> onReinterpretColorSpace(sk_sp<SkColorSpace>) const = 0;
SkImage_Base(const SkImageInfo& info, uint32_t uniqueID);
// Set true by caches when they cache content that's derived from the current pixels.
mutable std::atomic<bool> fAddedToRasterCache;
typedef SkImage INHERITED;
static inline SkImage_Base* as_IB(SkImage* image) {
return static_cast<SkImage_Base*>(image);
static inline SkImage_Base* as_IB(const sk_sp<SkImage>& image) {
return static_cast<SkImage_Base*>(image.get());
static inline const SkImage_Base* as_IB(const SkImage* image) {
return static_cast<const SkImage_Base*>(image);