+void GfxColorSpace::getDefaultRanges(double *decodeLow, double *decodeRange,
+ int maxImgPixel) {
+ int i;
+
+ for (i = 0; i < getNComps(); ++i) {
+ decodeLow[i] = 0;
+ decodeRange[i] = 1;
+ }
+}
+
+//------------------------------------------------------------------------
+// GfxDeviceGrayColorSpace
+//------------------------------------------------------------------------
+
+GfxDeviceGrayColorSpace::GfxDeviceGrayColorSpace() {
+}
+
+GfxDeviceGrayColorSpace::~GfxDeviceGrayColorSpace() {
+}
+
+GfxColorSpace *GfxDeviceGrayColorSpace::copy() {
+ return new GfxDeviceGrayColorSpace();
+}
+
+void GfxDeviceGrayColorSpace::getGray(GfxColor *color, double *gray) {
+ *gray = clip01(color->c[0]);
+}
+
+void GfxDeviceGrayColorSpace::getRGB(GfxColor *color, GfxRGB *rgb) {
+ rgb->r = rgb->g = rgb->b = clip01(color->c[0]);
+}
+
+void GfxDeviceGrayColorSpace::getCMYK(GfxColor *color, GfxCMYK *cmyk) {
+ cmyk->c = cmyk->m = cmyk->y = 0;
+ cmyk->k = clip01(1 - color->c[0]);
+}
+
+//------------------------------------------------------------------------
+// GfxCalGrayColorSpace
+//------------------------------------------------------------------------
+
+GfxCalGrayColorSpace::GfxCalGrayColorSpace() {
+ whiteX = whiteY = whiteZ = 1;
+ blackX = blackY = blackZ = 0;
+ gamma = 1;
+}
+
+GfxCalGrayColorSpace::~GfxCalGrayColorSpace() {
+}
+
+GfxColorSpace *GfxCalGrayColorSpace::copy() {
+ GfxCalGrayColorSpace *cs;
+
+ cs = new GfxCalGrayColorSpace();
+ cs->whiteX = whiteX;
+ cs->whiteY = whiteY;
+ cs->whiteZ = whiteZ;
+ cs->blackX = blackX;
+ cs->blackY = blackY;
+ cs->blackZ = blackZ;
+ cs->gamma = gamma;
+ return cs;
+}
+
+GfxColorSpace *GfxCalGrayColorSpace::parse(Array *arr) {
+ GfxCalGrayColorSpace *cs;
+ Object obj1, obj2, obj3;
+
+ arr->get(1, &obj1);
+ if (!obj1.isDict()) {
+ error(-1, "Bad CalGray color space");
+ obj1.free();
+ return NULL;
+ }
+ cs = new GfxCalGrayColorSpace();
+ if (obj1.dictLookup("WhitePoint", &obj2)->isArray() &&
+ obj2.arrayGetLength() == 3) {
+ obj2.arrayGet(0, &obj3);
+ cs->whiteX = obj3.getNum();
+ obj3.free();
+ obj2.arrayGet(1, &obj3);
+ cs->whiteY = obj3.getNum();
+ obj3.free();
+ obj2.arrayGet(2, &obj3);
+ cs->whiteZ = obj3.getNum();
+ obj3.free();
+ }
+ obj2.free();
+ if (obj1.dictLookup("BlackPoint", &obj2)->isArray() &&
+ obj2.arrayGetLength() == 3) {
+ obj2.arrayGet(0, &obj3);
+ cs->blackX = obj3.getNum();
+ obj3.free();
+ obj2.arrayGet(1, &obj3);
+ cs->blackY = obj3.getNum();
+ obj3.free();
+ obj2.arrayGet(2, &obj3);
+ cs->blackZ = obj3.getNum();
+ obj3.free();
+ }
+ obj2.free();
+ if (obj1.dictLookup("Gamma", &obj2)->isNum()) {
+ cs->gamma = obj2.getNum();
+ }
+ obj2.free();
+ obj1.free();
+ return cs;
+}
+
+void GfxCalGrayColorSpace::getGray(GfxColor *color, double *gray) {
+ *gray = clip01(color->c[0]);
+}
+
+void GfxCalGrayColorSpace::getRGB(GfxColor *color, GfxRGB *rgb) {
+ rgb->r = rgb->g = rgb->b = clip01(color->c[0]);
+}
+
+void GfxCalGrayColorSpace::getCMYK(GfxColor *color, GfxCMYK *cmyk) {
+ cmyk->c = cmyk->m = cmyk->y = 0;
+ cmyk->k = clip01(1 - color->c[0]);
+}
+
+//------------------------------------------------------------------------
+// GfxDeviceRGBColorSpace
+//------------------------------------------------------------------------
+
+GfxDeviceRGBColorSpace::GfxDeviceRGBColorSpace() {
+}
+
+GfxDeviceRGBColorSpace::~GfxDeviceRGBColorSpace() {
+}
+
+GfxColorSpace *GfxDeviceRGBColorSpace::copy() {
+ return new GfxDeviceRGBColorSpace();
+}
+
+void GfxDeviceRGBColorSpace::getGray(GfxColor *color, double *gray) {
+ *gray = clip01(0.299 * color->c[0] +
+ 0.587 * color->c[1] +
+ 0.114 * color->c[2]);
+}
+
+void GfxDeviceRGBColorSpace::getRGB(GfxColor *color, GfxRGB *rgb) {
+ rgb->r = clip01(color->c[0]);
+ rgb->g = clip01(color->c[1]);
+ rgb->b = clip01(color->c[2]);
+}
+
+void GfxDeviceRGBColorSpace::getCMYK(GfxColor *color, GfxCMYK *cmyk) {
+ double c, m, y, k;
+
+ c = clip01(1 - color->c[0]);
+ m = clip01(1 - color->c[1]);
+ y = clip01(1 - color->c[2]);
+ k = c;
+ if (m < k) {
+ k = m;
+ }
+ if (y < k) {
+ k = y;
+ }
+ cmyk->c = c - k;
+ cmyk->m = m - k;
+ cmyk->y = y - k;
+ cmyk->k = k;
+}
+
+//------------------------------------------------------------------------
+// GfxCalRGBColorSpace
+//------------------------------------------------------------------------
+
+GfxCalRGBColorSpace::GfxCalRGBColorSpace() {
+ whiteX = whiteY = whiteZ = 1;
+ blackX = blackY = blackZ = 0;
+ gammaR = gammaG = gammaB = 1;
+ mat[0] = 1; mat[1] = 0; mat[2] = 0;
+ mat[3] = 0; mat[4] = 1; mat[5] = 0;
+ mat[6] = 0; mat[7] = 0; mat[8] = 1;
+}
+
+GfxCalRGBColorSpace::~GfxCalRGBColorSpace() {
+}
+
+GfxColorSpace *GfxCalRGBColorSpace::copy() {
+ GfxCalRGBColorSpace *cs;
+ int i;
+
+ cs = new GfxCalRGBColorSpace();
+ cs->whiteX = whiteX;
+ cs->whiteY = whiteY;
+ cs->whiteZ = whiteZ;
+ cs->blackX = blackX;
+ cs->blackY = blackY;
+ cs->blackZ = blackZ;
+ cs->gammaR = gammaR;
+ cs->gammaG = gammaG;
+ cs->gammaB = gammaB;
+ for (i = 0; i < 9; ++i) {
+ cs->mat[i] = mat[i];
+ }
+ return cs;
+}
+
+GfxColorSpace *GfxCalRGBColorSpace::parse(Array *arr) {
+ GfxCalRGBColorSpace *cs;
+ Object obj1, obj2, obj3;
+ int i;
+
+ arr->get(1, &obj1);
+ if (!obj1.isDict()) {
+ error(-1, "Bad CalRGB color space");
+ obj1.free();
+ return NULL;
+ }
+ cs = new GfxCalRGBColorSpace();
+ if (obj1.dictLookup("WhitePoint", &obj2)->isArray() &&
+ obj2.arrayGetLength() == 3) {
+ obj2.arrayGet(0, &obj3);
+ cs->whiteX = obj3.getNum();
+ obj3.free();
+ obj2.arrayGet(1, &obj3);
+ cs->whiteY = obj3.getNum();
+ obj3.free();
+ obj2.arrayGet(2, &obj3);
+ cs->whiteZ = obj3.getNum();
+ obj3.free();
+ }
+ obj2.free();
+ if (obj1.dictLookup("BlackPoint", &obj2)->isArray() &&
+ obj2.arrayGetLength() == 3) {
+ obj2.arrayGet(0, &obj3);
+ cs->blackX = obj3.getNum();
+ obj3.free();
+ obj2.arrayGet(1, &obj3);
+ cs->blackY = obj3.getNum();
+ obj3.free();
+ obj2.arrayGet(2, &obj3);
+ cs->blackZ = obj3.getNum();
+ obj3.free();
+ }
+ obj2.free();
+ if (obj1.dictLookup("Gamma", &obj2)->isArray() &&
+ obj2.arrayGetLength() == 3) {
+ obj2.arrayGet(0, &obj3);
+ cs->gammaR = obj3.getNum();
+ obj3.free();
+ obj2.arrayGet(1, &obj3);
+ cs->gammaG = obj3.getNum();
+ obj3.free();
+ obj2.arrayGet(2, &obj3);
+ cs->gammaB = obj3.getNum();
+ obj3.free();
+ }
+ obj2.free();
+ if (obj1.dictLookup("Matrix", &obj2)->isArray() &&
+ obj2.arrayGetLength() == 9) {
+ for (i = 0; i < 9; ++i) {
+ obj2.arrayGet(i, &obj3);
+ cs->mat[i] = obj3.getNum();
+ obj3.free();