return (x < 0) ? 0 : ((x > 1) ? 1 : x);
}
+//------------------------------------------------------------------------
+
+static char *gfxColorSpaceModeNames[] = {
+ "DeviceGray",
+ "CalGray",
+ "DeviceRGB",
+ "CalRGB",
+ "DeviceCMYK",
+ "Lab",
+ "ICCBased",
+ "Indexed",
+ "Separation",
+ "DeviceN",
+ "Pattern"
+};
+
+#define nGfxColorSpaceModes ((sizeof(gfxColorSpaceModeNames) / sizeof(char *)))
+
//------------------------------------------------------------------------
// GfxColorSpace
//------------------------------------------------------------------------
}
}
+int GfxColorSpace::getNumColorSpaceModes() {
+ return nGfxColorSpaceModes;
+}
+
+char *GfxColorSpace::getColorSpaceModeName(int idx) {
+ return gfxColorSpaceModeNames[idx];
+}
+
//------------------------------------------------------------------------
// GfxDeviceGrayColorSpace
//------------------------------------------------------------------------
return NULL;
}
-void GfxIndexedColorSpace::getGray(GfxColor *color, double *gray) {
+GfxColor *GfxIndexedColorSpace::mapColorToBase(GfxColor *color,
+ GfxColor *baseColor) {
Guchar *p;
- GfxColor color2;
double low[gfxColorMaxComps], range[gfxColorMaxComps];
int n, i;
base->getDefaultRanges(low, range, indexHigh);
p = &lookup[(int)(color->c[0] + 0.5) * n];
for (i = 0; i < n; ++i) {
- color2.c[i] = low[i] + (p[i] / 255.0) * range[i];
+ baseColor->c[i] = low[i] + (p[i] / 255.0) * range[i];
}
- base->getGray(&color2, gray);
+ return baseColor;
+}
+
+void GfxIndexedColorSpace::getGray(GfxColor *color, double *gray) {
+ GfxColor color2;
+
+ base->getGray(mapColorToBase(color, &color2), gray);
}
void GfxIndexedColorSpace::getRGB(GfxColor *color, GfxRGB *rgb) {
- Guchar *p;
GfxColor color2;
- double low[gfxColorMaxComps], range[gfxColorMaxComps];
- int n, i;
- n = base->getNComps();
- base->getDefaultRanges(low, range, indexHigh);
- p = &lookup[(int)(color->c[0] + 0.5) * n];
- for (i = 0; i < n; ++i) {
- color2.c[i] = low[i] + (p[i] / 255.0) * range[i];
- }
- base->getRGB(&color2, rgb);
+ base->getRGB(mapColorToBase(color, &color2), rgb);
}
void GfxIndexedColorSpace::getCMYK(GfxColor *color, GfxCMYK *cmyk) {
- Guchar *p;
GfxColor color2;
- double low[gfxColorMaxComps], range[gfxColorMaxComps];
- int n, i;
- n = base->getNComps();
- base->getDefaultRanges(low, range, indexHigh);
- p = &lookup[(int)(color->c[0] + 0.5) * n];
- for (i = 0; i < n; ++i) {
- color2.c[i] = low[i] + (p[i] / 255.0) * range[i];
- }
- base->getCMYK(&color2, cmyk);
+ base->getCMYK(mapColorToBase(color, &color2), cmyk);
}
void GfxIndexedColorSpace::getDefaultRanges(double *decodeLow,
}
}
+void GfxImageColorMap::getColor(Guchar *x, GfxColor *color) {
+ int maxPixel, i;
+
+ maxPixel = (1 << bits) - 1;
+ for (i = 0; i < nComps; ++i) {
+ color->c[i] = decodeLow[i] + (x[i] * decodeRange[i]) / maxPixel;
+ }
+}
+
//------------------------------------------------------------------------
// GfxSubpath and GfxPath
//------------------------------------------------------------------------