chromium/third_party/skia/src/core/SkSpecialImage.h

/*
 * Copyright 2016 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file
 */

#ifndef SkSpecialImage_DEFINED
#define SkSpecialImage_DEFINED

#include "include/core/SkImageInfo.h"
#include "include/core/SkRect.h"
#include "include/core/SkRefCnt.h"
#include "include/core/SkSamplingOptions.h"
#include "include/core/SkScalar.h"
#include "include/core/SkSize.h"
#include "include/core/SkSurfaceProps.h"

#include <cstddef>
#include <cstdint>

class GrRecordingContext;
class SkBitmap;
class SkCanvas;
class SkColorSpace;
class SkImage;
class SkMatrix;
class SkPaint;
class SkShader;
enum SkAlphaType : int;
enum SkColorType : int;
enum class SkTileMode;

enum { … };

/**
 * This is a restricted form of SkImage solely intended for internal use. It
 * differs from SkImage in that:
 *      - it can only be backed by raster or gpu (no generators)
 *      - it can be backed by a GrTextureProxy larger than its nominal bounds
 *      - it can't be drawn tiled
 *      - it can't be drawn with MIPMAPs
 * It is similar to SkImage in that it abstracts how the pixels are stored/represented.
 *
 * Note: the contents of the backing storage outside of the subset rect are undefined.
 */
class SkSpecialImage : public SkRefCnt { … };

namespace SkSpecialImages {

sk_sp<SkSpecialImage> MakeFromRaster(const SkIRect& subset, sk_sp<SkImage>, const SkSurfaceProps&);
sk_sp<SkSpecialImage> MakeFromRaster(const SkIRect& subset, const SkBitmap&, const SkSurfaceProps&);
sk_sp<SkSpecialImage> CopyFromRaster(const SkIRect& subset, const SkBitmap&, const SkSurfaceProps&);

bool AsBitmap(const SkSpecialImage* img, SkBitmap*);

}  // namespace SkSpecialImages

#endif // SkSpecialImage_DEFINED