headers/private/interface/ColorConversion.h

   1 #ifndef _COLOR_CONVERSION_H_
   2 #define _COLOR_CONVERSION_H_
   3
   4
   5 #include <GraphicsDefs.h>
   6
   7 class BPoint;
   8
   9
  10 namespace BPrivate {
  11
  12 status_t ConvertBits(const void *srcBits, void *dstBits, int32 srcBitsLength,
  13         int32 dstBitsLength, int32 srcBytesPerRow, int32 dstBytesPerRow,
  14         color_space srcColorSpace, color_space dstColorSpace, int32 width,
  15         int32 height);
  16 status_t ConvertBits(const void *srcBits, void *dstBits, int32 srcBitsLength,
  17         int32 dstBitsLength, int32 srcBytesPerRow, int32 dstBytesPerRow,
  18         color_space srcColorSpace, color_space dstColorSpace, BPoint srcOffset,
  19         BPoint dstOffset, int32 width, int32 height);
  20
  21
  22 /*!     \brief Helper class for conversion between RGB and palette colors.
  23 */
  24 class PaletteConverter {
  25 public:
  26         PaletteConverter();
  27         PaletteConverter(const rgb_color *palette);
  28         PaletteConverter(const color_map *colorMap);
  29         ~PaletteConverter();
  30
  31         status_t SetTo(const rgb_color *palette);
  32         status_t SetTo(const color_map *colorMap);
  33         status_t InitCheck() const;
  34
  35         inline uint8 IndexForRGB15(uint16 rgb) const;
  36         inline uint8 IndexForRGB15(uint8 red, uint8 green, uint8 blue) const;
  37         inline uint8 IndexForRGB16(uint16 rgb) const;
  38         inline uint8 IndexForRGB16(uint8 red, uint8 green, uint8 blue) const;
  39         inline uint8 IndexForRGB24(uint32 rgb) const;
  40         inline uint8 IndexForRGB24(uint8 red, uint8 green, uint8 blue) const;
  41         inline uint8 IndexForRGBA32(uint32 rgba) const;
  42         inline uint8 IndexForGray(uint8 gray) const;
  43
  44         inline const rgb_color &RGBColorForIndex(uint8 index) const;
  45         inline uint16 RGB15ColorForIndex(uint8 index) const;
  46         inline uint16 RGB16ColorForIndex(uint8 index) const;
  47         inline uint32 RGBA32ColorForIndex(uint8 index) const;
  48         inline void RGBA32ColorForIndex(uint8 index, uint8 &red, uint8 &green,
  49                                                                    uint8 &blue, uint8 &alpha) const;
  50         inline uint8 GrayColorForIndex(uint8 index) const;
  51
  52         static status_t InitializeDefault(bool useServer = false);
  53
  54 private:
  55         static void _InitializeDefaultAppServer();
  56         static void _InitializeDefaultNoAppServer();
  57
  58 private:
  59         const color_map *fColorMap;
  60         color_map               *fOwnColorMap;
  61         status_t                fCStatus;
  62 };
  63
  64 }       // namespace BPrivate
  65
  66 #endif