Cross Reference: /external/skia/include/core/SkPixmap.h

Lines Matching defs:SkPixmap
18 /** \class SkPixmap
19     SkPixmap provides a utility to pair SkImageInfo with pixels and row bytes.
20     SkPixmap is a low level class which provides convenience functions to access
21     raster destinations. SkCanvas can not draw SkPixmap, nor does SkPixmap provide
24     Use SkBitmap to draw pixels referenced by SkPixmap; use SkSurface to draw into
25     pixels referenced by SkPixmap.
27     SkPixmap does not try to manage the lifetime of the pixel memory. Use SkPixelRef
30 class SK_API SkPixmap {
33     /** Creates an empty SkPixmap without pixels, with kUnknown_SkColorType, with
36         after SkPixmap has been created.
38         @return  empty SkPixmap
40     SkPixmap()
44     /** Creates SkPixmap from info width, height, SkAlphaType, and SkColorType.
51         The memory lifetime of pixels is managed by the caller. When SkPixmap goes
54         SkPixmap may be later modified by reset() to change its size, pixel type, or
60         @return          initialized SkPixmap
62     SkPixmap(const SkImageInfo& info, const void* addr, size_t rowBytes)
82         The memory lifetime pixels are managed by the caller. When SkPixmap goes
103     /** Sets subset width, height, pixel address to intersection of SkPixmap with area,
110         @param area    bounds to intersect with SkPixmap
111         @return        true if intersection of SkPixmap and area is not empty
113     bool SK_WARN_UNUSED_RESULT extractSubset(SkPixmap* subset, const SkIRect& area) const;
133         It is up to the SkPixmap creator to ensure that pixel address is a useful value.
517         exceed SkPixmap (width(), height()).
524         Pixels are copied only if pixel conversion is possible. If SkPixmap colorType() is
526         If SkPixmap colorType() is kGray_8_SkColorType, dstInfo.colorSpace() must match.
527         If SkPixmap alphaType() is kOpaque_SkAlphaType, dstInfo.alphaType() must
528         match. If SkPixmap colorSpace() is nullptr, dstInfo.colorSpace() must match. Returns
553         exceed SkPixmap (width(), height()).
560         Pixels are copied only if pixel conversion is possible. If SkPixmap colorType() is
562         If SkPixmap colorType() is kGray_8_SkColorType, dstInfo.colorSpace() must match.
563         If SkPixmap alphaType() is kOpaque_SkAlphaType, dstInfo.alphaType() must
564         match. If SkPixmap colorSpace() is nullptr, dstInfo.colorSpace() must match. Returns
567         Returns false if SkPixmap width() or height() is zero or negative.
579         exceed SkPixmap (width(), height()).
586         Pixels are copied only if pixel conversion is possible. If SkPixmap colorType() is
588         If SkPixmap colorType() is kGray_8_SkColorType, dstInfo.colorSpace() must match.
589         If SkPixmap alphaType() is kOpaque_SkAlphaType, dstInfo.alphaType() must
590         match. If SkPixmap colorSpace() is nullptr, dstInfo.colorSpace() must match. Returns
594         false if SkPixmap width() or height() is zero or negative. Returns false if:
611         exceed SkPixmap (width(), height()). dst specifies width, height, SkColorType,
616         Pixels are copied only if pixel conversion is possible. If SkPixmap colorType() is
618         If SkPixmap colorType() is kGray_8_SkColorType, dst.info().colorSpace must match.
619         If SkPixmap alphaType() is kOpaque_SkAlphaType, dst.info().alphaType must
620         match. If SkPixmap colorSpace() is nullptr, dst.info().colorSpace must match. Returns
624         false SkPixmap width() or height() is zero or negative. Returns false if:
632     bool readPixels(const SkPixmap& dst, int srcX, int srcY) const {
641         Pixels are copied only if pixel conversion is possible. If SkPixmap colorType() is
643         If SkPixmap colorType() is kGray_8_SkColorType, dst SkColorSpace must match.
644         If SkPixmap alphaType() is kOpaque_SkAlphaType, dst SkAlphaType must
645         match. If SkPixmap colorSpace() is nullptr, dst SkColorSpace must match. Returns
648         Returns false if SkPixmap width() or height() is zero or negative.
653     bool readPixels(const SkPixmap& dst) const {
662         Pixels are copied only if pixel conversion is possible. If SkPixmap colorType() is
664         If SkPixmap colorType() is kGray_8_SkColorType, dst SkColorSpace must match.
665         If SkPixmap alphaType() is kOpaque_SkAlphaType, dst SkAlphaType must
666         match. If SkPixmap colorSpace() is nullptr, dst SkColorSpace must match. Returns
683     bool scalePixels(const SkPixmap& dst, SkFilterQuality filterQuality) const;