arospdf/splash/SplashTypes.h

   1 //========================================================================
   2 //
   3 // SplashTypes.h
   4 //
   5 //========================================================================
   6
   7 #ifndef SPLASHTYPES_H
   8 #define SPLASHTYPES_H
   9
  10 #include <aconf.h>
  11 #include "gtypes.h"
  12
  13 //------------------------------------------------------------------------
  14 // coordinates
  15 //------------------------------------------------------------------------
  16
  17 #if USE_FIXEDPOINT
  18 #include "FixedPoint.h"
  19 typedef FixedPoint SplashCoord;
  20 #else
  21 typedef double SplashCoord;
  22 #endif
  23
  24 //------------------------------------------------------------------------
  25 // antialiasing
  26 //------------------------------------------------------------------------
  27
  28 #define splashAASize 4
  29
  30 //------------------------------------------------------------------------
  31 // colors
  32 //------------------------------------------------------------------------
  33
  34 enum SplashColorMode {
  35   splashModeMono1,              // 1 bit per component, 8 pixels per byte,
  36                                 //   MSbit is on the left
  37   splashModeMono8,              // 1 byte per component, 1 byte per pixel
  38   splashModeRGB8,               // 1 byte per component, 3 bytes per pixel:
  39                                 //   RGBRGB...
  40   splashModeBGR8                // 1 byte per component, 3 bytes per pixel:
  41                                 //   BGRBGR...
  42
  43 #if SPLASH_CMYK
  44   ,
  45   splashModeCMYK8               // 1 byte per component, 4 bytes per pixel:
  46                                 //   CMYKCMYK...
  47 #endif
  48 };
  49
  50 // number of components in each color mode
  51 // (defined in SplashState.cc)
  52 extern int splashColorModeNComps[];
  53
  54 // max number of components in any SplashColor
  55 #if SPLASH_CMYK
  56 #  define splashMaxColorComps 4
  57 #else
  58 #  define splashMaxColorComps 3
  59 #endif
  60
  61 typedef Guchar SplashColor[splashMaxColorComps];
  62 typedef Guchar *SplashColorPtr;
  63
  64 // RGB8
  65 static inline Guchar splashRGB8R(SplashColorPtr rgb8) { return rgb8[0]; }
  66 static inline Guchar splashRGB8G(SplashColorPtr rgb8) { return rgb8[1]; }
  67 static inline Guchar splashRGB8B(SplashColorPtr rgb8) { return rgb8[2]; }
  68
  69 // BGR8
  70 static inline Guchar splashBGR8R(SplashColorPtr bgr8) { return bgr8[2]; }
  71 static inline Guchar splashBGR8G(SplashColorPtr bgr8) { return bgr8[1]; }
  72 static inline Guchar splashBGR8B(SplashColorPtr bgr8) { return bgr8[0]; }
  73
  74 #if SPLASH_CMYK
  75 // CMYK8
  76 static inline Guchar splashCMYK8C(SplashColorPtr cmyk8) { return cmyk8[0]; }
  77 static inline Guchar splashCMYK8M(SplashColorPtr cmyk8) { return cmyk8[1]; }
  78 static inline Guchar splashCMYK8Y(SplashColorPtr cmyk8) { return cmyk8[2]; }
  79 static inline Guchar splashCMYK8K(SplashColorPtr cmyk8) { return cmyk8[3]; }
  80 #endif
  81
  82 static inline void splashColorCopy(SplashColorPtr dest, SplashColorPtr src) {
  83   dest[0] = src[0];
  84   dest[1] = src[1];
  85   dest[2] = src[2];
  86 #if SPLASH_CMYK
  87   dest[3] = src[3];
  88 #endif
  89 }
  90
  91 static inline void splashColorXor(SplashColorPtr dest, SplashColorPtr src) {
  92   dest[0] ^= src[0];
  93   dest[1] ^= src[1];
  94   dest[2] ^= src[2];
  95 #if SPLASH_CMYK
  96   dest[3] ^= src[3];
  97 #endif
  98 }
  99
 100 //------------------------------------------------------------------------
 101 // blend functions
 102 //------------------------------------------------------------------------
 103
 104 typedef void (*SplashBlendFunc)(SplashColorPtr src, SplashColorPtr dest,
 105                                 SplashColorPtr blend, SplashColorMode cm);
 106
 107 //------------------------------------------------------------------------
 108 // screen parameters
 109 //------------------------------------------------------------------------
 110
 111 enum SplashScreenType {
 112   splashScreenDispersed,
 113   splashScreenClustered,
 114   splashScreenStochasticClustered
 115 };
 116
 117 struct SplashScreenParams {
 118   SplashScreenType type;
 119   int size;
 120   int dotRadius;
 121   SplashCoord gamma;
 122   SplashCoord blackThreshold;
 123   SplashCoord whiteThreshold;
 124 };
 125
 126 //------------------------------------------------------------------------
 127 // error results
 128 //------------------------------------------------------------------------
 129
 130 typedef int SplashError;
 131
 132 #endif