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* Copyright 2023 Google LLC
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
#ifndef SkImage_Raster_DEFINED
#define SkImage_Raster_DEFINED
#include "include/core/SkBitmap.h"
#include "include/core/SkImage.h"
#include "include/core/SkPixelRef.h"
#include "include/core/SkRefCnt.h"
#include "include/core/SkTypes.h"
#include "include/private/base/SkTo.h"
#include "src/core/SkImagePriv.h"
#include "src/core/SkMipmap.h"
#include "src/image/SkImage_Base.h"
#include <cstddef>
#include <cstdint>
#include <utility>
class GrDirectContext;
class GrRecordingContext;
class SkColorSpace;
class SkData;
class SkPixmap;
enum SkColorType : int;
struct SkIRect;
struct SkImageInfo;
namespace skgpu { namespace graphite { class Recorder; } }
class SkImage_Raster : public SkImage_Base {
SkImage_Raster(const SkImageInfo&, sk_sp<SkData>, size_t rb,
uint32_t id = kNeedNewImageUniqueID);
SkImage_Raster(const SkBitmap& bm, bool bitmapMayBeMutable = false);
~SkImage_Raster() override;
// From SkImage.h
bool isValid(GrRecordingContext* context) const override { return true; }
// From SkImage_Base.h
bool onReadPixels(GrDirectContext*, const SkImageInfo&, void*, size_t, int srcX, int srcY,
CachingHint) const override;
bool onPeekPixels(SkPixmap*) const override;
const SkBitmap* onPeekBitmap() const override { return &fBitmap; }
bool getROPixels(GrDirectContext*, SkBitmap*, CachingHint) const override;
sk_sp<SkImage> onMakeSubset(GrDirectContext*, const SkIRect&) const override;
sk_sp<SkImage> onMakeSubset(skgpu::graphite::Recorder*,
const SkIRect&,
RequiredProperties) const override;
SkPixelRef* getPixelRef() const { return fBitmap.pixelRef(); }
bool onAsLegacyBitmap(GrDirectContext*, SkBitmap*) const override;
sk_sp<SkImage> onMakeColorTypeAndColorSpace(SkColorType, sk_sp<SkColorSpace>,
GrDirectContext*) const override;
sk_sp<SkImage> onReinterpretColorSpace(sk_sp<SkColorSpace>) const override;
void notifyAddedToRasterCache() const override {
// We explicitly DON'T want to call INHERITED::notifyAddedToRasterCache. That ties the
// lifetime of derived/cached resources to the image. In this case, we only want cached
// data (eg mips) tied to the lifetime of the underlying pixelRef.
bool onHasMipmaps() const override { return SkToBool(fBitmap.fMips); }
SkMipmap* onPeekMips() const override { return fBitmap.fMips.get(); }
sk_sp<SkImage> onMakeWithMipmaps(sk_sp<SkMipmap> mips) const override {
// It's dangerous to have two SkBitmaps that share a SkPixelRef but have different SkMipmaps
// since various caches key on SkPixelRef's generation ID. Also, SkPixelRefs that back
// SkSurfaces are marked "temporarily immutable" and making an image that uses the same
// SkPixelRef can interact badly with SkSurface/SkImage copy-on-write. So we just always
// make a copy with a new ID.
static auto constexpr kCopyMode = SkCopyPixelsMode::kAlways_SkCopyPixelsMode;
sk_sp<SkImage> img = SkMakeImageFromRasterBitmap(fBitmap, kCopyMode);
auto imgRaster = static_cast<SkImage_Raster*>(img.get());
if (mips) {
imgRaster->fBitmap.fMips = std::move(mips);
} else {
imgRaster->fBitmap.fMips.reset(SkMipmap::Build(fBitmap.pixmap(), nullptr));
return img;
SkImage_Base::Type type() const override { return SkImage_Base::Type::kRaster; }
SkBitmap bitmap() const { return fBitmap; }
SkBitmap fBitmap;
sk_sp<SkImage> MakeRasterCopyPriv(const SkPixmap& pmap, uint32_t id);
#endif // SkImage_Raster_DEFINED