static fz_error * loadseparation(fz_colorspace **csp, pdf_xref *xref, fz_obj *array) { fz_error *error; struct separation *cs; fz_obj *nameobj = fz_arrayget(array, 1); fz_obj *baseobj = fz_arrayget(array, 2); fz_obj *tintobj = fz_arrayget(array, 3); fz_colorspace *base; pdf_function *tint; int n; pdf_logrsrc("load Separation {\n"); if (fz_isarray(nameobj)) n = fz_arraylen(nameobj); else n = 1; pdf_logrsrc("n = %d\n", n); error = pdf_resolve(&baseobj, xref); if (error) return error; error = pdf_loadcolorspace(&base, xref, baseobj); fz_dropobj(baseobj); if (error) return error; error = pdf_loadfunction(&tint, xref, tintobj); if (error) { fz_dropcolorspace(base); return error; } cs = fz_malloc(sizeof(struct separation)); if (!cs) { pdf_dropfunction(tint); fz_dropcolorspace(base); return fz_outofmem; } initcs((fz_colorspace*)cs, n == 1 ? "Separation" : "DeviceN", n, separationtoxyz, nil, dropseparation); cs->base = base; cs->tint = tint; pdf_logrsrc("}\n"); *csp = (fz_colorspace*)cs; return nil; }
static fz_error * loadcalgray(fz_colorspace **csp, pdf_xref *xref, fz_obj *dict) { fz_error *error; struct calgray *cs; fz_obj *tmp; error = pdf_resolve(&dict, xref); if (error) return error; cs = fz_malloc(sizeof(struct calgray)); if (!cs) return fz_outofmem; pdf_logrsrc("load CalGray\n"); initcs((fz_colorspace*)cs, "CalGray", 1, graytoxyz, xyztogray, nil); cs->white[0] = 1.0; cs->white[1] = 1.0; cs->white[2] = 1.0; cs->black[0] = 0.0; cs->black[1] = 0.0; cs->black[2] = 0.0; cs->gamma = 1.0; tmp = fz_dictgets(dict, "WhitePoint"); if (fz_isarray(tmp)) { cs->white[0] = fz_toreal(fz_arrayget(tmp, 0)); cs->white[1] = fz_toreal(fz_arrayget(tmp, 1)); cs->white[2] = fz_toreal(fz_arrayget(tmp, 2)); } tmp = fz_dictgets(dict, "BlackPoint"); if (fz_isarray(tmp)) { cs->black[0] = fz_toreal(fz_arrayget(tmp, 0)); cs->black[1] = fz_toreal(fz_arrayget(tmp, 1)); cs->black[2] = fz_toreal(fz_arrayget(tmp, 2)); } tmp = fz_dictgets(dict, "Gamma"); if (fz_isreal(tmp)) cs->gamma = fz_toreal(tmp); fz_dropobj(dict); *csp = (fz_colorspace*) cs; return nil; }
static fz_error loadseparation(fz_colorspace **csp, pdf_xref *xref, fz_obj *array) { fz_error error; struct separation *cs; fz_obj *nameobj = fz_arrayget(array, 1); fz_obj *baseobj = fz_arrayget(array, 2); fz_obj *tintobj = fz_arrayget(array, 3); fz_colorspace *base; pdf_function *tint; int n; pdf_logrsrc("load Separation {\n"); if (fz_isarray(nameobj)) n = fz_arraylen(nameobj); else n = 1; if (n > FZ_MAXCOLORS) return fz_throw("too many components in colorspace"); pdf_logrsrc("n = %d\n", n); error = pdf_loadcolorspace(&base, xref, baseobj); if (error) return fz_rethrow(error, "cannot load base colorspace"); error = pdf_loadfunction(&tint, xref, tintobj); if (error) { fz_dropcolorspace(base); return fz_rethrow(error, "cannot load tint function"); } cs = fz_malloc(sizeof(struct separation)); initcs((fz_colorspace*)cs, n == 1 ? "Separation" : "DeviceN", n, separationtoxyz, nil, freeseparation); cs->base = fz_keepcolorspace(base); cs->tint = pdf_keepfunction(tint); fz_dropcolorspace(base); pdf_dropfunction(tint); pdf_logrsrc("}\n"); *csp = (fz_colorspace*)cs; return fz_okay; }
static fz_colorspace * loadlab(pdf_xref *xref, fz_obj *dict) { struct cielab *cs; fz_obj *tmp; cs = fz_malloc(sizeof(struct cielab)); pdf_logrsrc("load Lab\n"); initcs((fz_colorspace*)cs, "Lab", 3, labtoxyz, xyztolab, nil); cs->white[0] = 1.0; cs->white[1] = 1.0; cs->white[2] = 1.0; cs->black[0] = 0.0; cs->black[1] = 0.0; cs->black[2] = 0.0; cs->range[0] = -100; cs->range[1] = 100; cs->range[2] = -100; cs->range[3] = 100; tmp = fz_dictgets(dict, "WhitePoint"); if (fz_isarray(tmp)) { cs->white[0] = fz_toreal(fz_arrayget(tmp, 0)); cs->white[1] = fz_toreal(fz_arrayget(tmp, 1)); cs->white[2] = fz_toreal(fz_arrayget(tmp, 2)); } tmp = fz_dictgets(dict, "BlackPoint"); if (fz_isarray(tmp)) { cs->black[0] = fz_toreal(fz_arrayget(tmp, 0)); cs->black[1] = fz_toreal(fz_arrayget(tmp, 1)); cs->black[2] = fz_toreal(fz_arrayget(tmp, 2)); } tmp = fz_dictgets(dict, "Range"); if (fz_isarray(tmp)) { cs->range[0] = fz_toreal(fz_arrayget(tmp, 0)); cs->range[1] = fz_toreal(fz_arrayget(tmp, 1)); cs->range[2] = fz_toreal(fz_arrayget(tmp, 2)); cs->range[3] = fz_toreal(fz_arrayget(tmp, 3)); } return (fz_colorspace*) cs; }
static fz_colorspace * loadcalgray(pdf_xref *xref, fz_obj *dict) { struct calgray *cs; fz_obj *tmp; cs = fz_malloc(sizeof(struct calgray)); pdf_logrsrc("load CalGray\n"); initcs((fz_colorspace*)cs, "CalGray", 1, graytoxyz, xyztogray, nil); cs->white[0] = 1.0; cs->white[1] = 1.0; cs->white[2] = 1.0; cs->black[0] = 0.0; cs->black[1] = 0.0; cs->black[2] = 0.0; cs->gamma = 1.0; tmp = fz_dictgets(dict, "WhitePoint"); if (fz_isarray(tmp)) { cs->white[0] = fz_toreal(fz_arrayget(tmp, 0)); cs->white[1] = fz_toreal(fz_arrayget(tmp, 1)); cs->white[2] = fz_toreal(fz_arrayget(tmp, 2)); } tmp = fz_dictgets(dict, "BlackPoint"); if (fz_isarray(tmp)) { cs->black[0] = fz_toreal(fz_arrayget(tmp, 0)); cs->black[1] = fz_toreal(fz_arrayget(tmp, 1)); cs->black[2] = fz_toreal(fz_arrayget(tmp, 2)); } tmp = fz_dictgets(dict, "Gamma"); if (fz_isreal(tmp)) cs->gamma = fz_toreal(tmp); return (fz_colorspace*) cs; }
static fz_error loadindexed(fz_colorspace **csp, pdf_xref *xref, fz_obj *array) { fz_error error; pdf_indexed *cs; fz_obj *baseobj = fz_arrayget(array, 1); fz_obj *highobj = fz_arrayget(array, 2); fz_obj *lookup = fz_arrayget(array, 3); fz_colorspace *base; int n; pdf_logrsrc("load Indexed {\n"); error = pdf_loadcolorspace(&base, xref, baseobj); if (error) return fz_rethrow(error, "cannot load base colorspace"); pdf_logrsrc("base %s\n", base->name); cs = fz_malloc(sizeof(pdf_indexed)); initcs((fz_colorspace*)cs, "Indexed", 1, nil, nil, freeindexed); cs->base = fz_keepcolorspace(base); cs->high = fz_toint(highobj); fz_dropcolorspace(base); n = base->n * (cs->high + 1); cs->lookup = fz_malloc(n); if (fz_isstring(lookup) && fz_tostrlen(lookup) == n) { unsigned char *buf; int i; pdf_logrsrc("string lookup\n"); buf = (unsigned char *) fz_tostrbuf(lookup); for (i = 0; i < n; i++) cs->lookup[i] = buf[i]; } else if (fz_isindirect(lookup)) { fz_buffer *buf; int i; pdf_logrsrc("stream lookup\n"); error = pdf_loadstream(&buf, xref, fz_tonum(lookup), fz_togen(lookup)); if (error) { fz_dropcolorspace((fz_colorspace*)cs); return fz_rethrow(error, "cannot load colorpsace lookup table"); } for (i = 0; i < n && i < (buf->wp - buf->rp); i++) cs->lookup[i] = buf->rp[i]; fz_dropbuffer(buf); } else return fz_throw("cannot parse colorspace lookup table"); pdf_logrsrc("}\n"); *csp = (fz_colorspace*)cs; return fz_okay; }
static fz_colorspace * loadcalrgb(pdf_xref *xref, fz_obj *dict) { struct calrgb *cs; fz_obj *tmp; int i; cs = fz_malloc(sizeof(struct calrgb)); pdf_logrsrc("load CalRGB\n"); initcs((fz_colorspace*)cs, "CalRGB", 3, rgbtoxyz, xyztorgb, nil); cs->white[0] = 1.0; cs->white[1] = 1.0; cs->white[2] = 1.0; cs->black[0] = 0.0; cs->black[1] = 0.0; cs->black[2] = 0.0; cs->gamma[0] = 1.0; cs->gamma[1] = 1.0; cs->gamma[2] = 1.0; cs->matrix[0] = 1.0; cs->matrix[1] = 0.0; cs->matrix[2] = 0.0; cs->matrix[3] = 0.0; cs->matrix[4] = 1.0; cs->matrix[5] = 0.0; cs->matrix[6] = 0.0; cs->matrix[7] = 0.0; cs->matrix[8] = 1.0; tmp = fz_dictgets(dict, "WhitePoint"); if (fz_isarray(tmp)) { cs->white[0] = fz_toreal(fz_arrayget(tmp, 0)); cs->white[1] = fz_toreal(fz_arrayget(tmp, 1)); cs->white[2] = fz_toreal(fz_arrayget(tmp, 2)); } tmp = fz_dictgets(dict, "BlackPoint"); if (fz_isarray(tmp)) { cs->black[0] = fz_toreal(fz_arrayget(tmp, 0)); cs->black[1] = fz_toreal(fz_arrayget(tmp, 1)); cs->black[2] = fz_toreal(fz_arrayget(tmp, 2)); } tmp = fz_dictgets(dict, "Gamma"); if (fz_isarray(tmp)) { cs->gamma[0] = fz_toreal(fz_arrayget(tmp, 0)); cs->gamma[1] = fz_toreal(fz_arrayget(tmp, 1)); cs->gamma[2] = fz_toreal(fz_arrayget(tmp, 2)); } tmp = fz_dictgets(dict, "Matrix"); if (fz_isarray(tmp)) { for (i = 0; i < 9; i++) cs->matrix[i] = fz_toreal(fz_arrayget(tmp, i)); } fz_invert3x3(cs->invmat, cs->matrix); return (fz_colorspace*) cs; }
static fz_error * loadindexed(fz_colorspace **csp, pdf_xref *xref, fz_obj *array) { fz_error *error; pdf_indexed *cs; fz_obj *baseobj = fz_arrayget(array, 1); fz_obj *highobj = fz_arrayget(array, 2); fz_obj *lookup = fz_arrayget(array, 3); fz_colorspace *base; int n; pdf_logrsrc("load Indexed {\n"); error = pdf_resolve(&baseobj, xref); if (error) return error; error = pdf_loadcolorspace(&base, xref, baseobj); fz_dropobj(baseobj); if (error) return error; pdf_logrsrc("base %s\n", base->name); cs = fz_malloc(sizeof(pdf_indexed)); if (!cs) { fz_dropcolorspace(base); return fz_outofmem; } initcs((fz_colorspace*)cs, "Indexed", 1, nil, nil, dropindexed); cs->base = base; cs->high = fz_toint(highobj); n = base->n * (cs->high + 1); cs->lookup = fz_malloc(n); if (!cs->lookup) { fz_dropcolorspace((fz_colorspace*)cs); return fz_outofmem; } if (fz_isstring(lookup) && fz_tostrlen(lookup) == n) { unsigned char *buf; int i; pdf_logrsrc("string lookup\n"); buf = fz_tostrbuf(lookup); for (i = 0; i < n; i++) cs->lookup[i] = buf[i]; } if (fz_isindirect(lookup)) { fz_buffer *buf; int i; pdf_logrsrc("stream lookup\n"); error = pdf_loadstream(&buf, xref, fz_tonum(lookup), fz_togen(lookup)); if (error) { fz_dropcolorspace((fz_colorspace*)cs); return error; } for (i = 0; i < n && i < (buf->wp - buf->rp); i++) cs->lookup[i] = buf->rp[i]; fz_dropbuffer(buf); } pdf_logrsrc("}\n"); *csp = (fz_colorspace*)cs; return nil; }
static fz_error * loadlab(fz_colorspace **csp, pdf_xref *xref, fz_obj *dict) { fz_error *error; struct cielab *cs; fz_obj *tmp; error = pdf_resolve(&dict, xref); if (error) return error; cs = fz_malloc(sizeof(struct cielab)); if (!cs) return fz_outofmem; pdf_logrsrc("load Lab\n"); initcs((fz_colorspace*)cs, "Lab", 3, labtoxyz, xyztolab, nil); cs->white[0] = 1.0; cs->white[1] = 1.0; cs->white[2] = 1.0; cs->black[0] = 0.0; cs->black[1] = 0.0; cs->black[2] = 0.0; cs->range[0] = -100; cs->range[1] = 100; cs->range[2] = -100; cs->range[3] = 100; tmp = fz_dictgets(dict, "WhitePoint"); if (fz_isarray(tmp)) { cs->white[0] = fz_toreal(fz_arrayget(tmp, 0)); cs->white[1] = fz_toreal(fz_arrayget(tmp, 1)); cs->white[2] = fz_toreal(fz_arrayget(tmp, 2)); } tmp = fz_dictgets(dict, "BlackPoint"); if (fz_isarray(tmp)) { cs->black[0] = fz_toreal(fz_arrayget(tmp, 0)); cs->black[1] = fz_toreal(fz_arrayget(tmp, 1)); cs->black[2] = fz_toreal(fz_arrayget(tmp, 2)); } tmp = fz_dictgets(dict, "Range"); if (fz_isarray(tmp)) { cs->range[0] = fz_toreal(fz_arrayget(tmp, 0)); cs->range[1] = fz_toreal(fz_arrayget(tmp, 1)); cs->range[2] = fz_toreal(fz_arrayget(tmp, 2)); cs->range[3] = fz_toreal(fz_arrayget(tmp, 3)); } fz_dropobj(dict); *csp = (fz_colorspace*) cs; return nil; }
static fz_error * loadcalrgb(fz_colorspace **csp, pdf_xref *xref, fz_obj *dict) { fz_error *error; struct calrgb *cs; fz_obj *tmp; int i; error = pdf_resolve(&dict, xref); if (error) return error; cs = fz_malloc(sizeof(struct calrgb)); if (!cs) return fz_outofmem; pdf_logrsrc("load CalRGB\n"); initcs((fz_colorspace*)cs, "CalRGB", 3, rgbtoxyz, xyztorgb, nil); cs->white[0] = 1.0; cs->white[1] = 1.0; cs->white[2] = 1.0; cs->black[0] = 0.0; cs->black[1] = 0.0; cs->black[2] = 0.0; cs->gamma[0] = 1.0; cs->gamma[1] = 1.0; cs->gamma[2] = 1.0; cs->matrix[0] = 1.0; cs->matrix[1] = 0.0; cs->matrix[2] = 0.0; cs->matrix[3] = 0.0; cs->matrix[4] = 1.0; cs->matrix[5] = 0.0; cs->matrix[6] = 0.0; cs->matrix[7] = 0.0; cs->matrix[8] = 1.0; tmp = fz_dictgets(dict, "WhitePoint"); if (fz_isarray(tmp)) { cs->white[0] = fz_toreal(fz_arrayget(tmp, 0)); cs->white[1] = fz_toreal(fz_arrayget(tmp, 1)); cs->white[2] = fz_toreal(fz_arrayget(tmp, 2)); } tmp = fz_dictgets(dict, "BlackPoint"); if (fz_isarray(tmp)) { cs->black[0] = fz_toreal(fz_arrayget(tmp, 0)); cs->black[1] = fz_toreal(fz_arrayget(tmp, 1)); cs->black[2] = fz_toreal(fz_arrayget(tmp, 2)); } tmp = fz_dictgets(dict, "Gamma"); if (fz_isarray(tmp)) { cs->gamma[0] = fz_toreal(fz_arrayget(tmp, 0)); cs->gamma[1] = fz_toreal(fz_arrayget(tmp, 1)); cs->gamma[2] = fz_toreal(fz_arrayget(tmp, 2)); } tmp = fz_dictgets(dict, "Matrix"); if (fz_isarray(tmp)) { for (i = 0; i < 9; i++) cs->matrix[i] = fz_toreal(fz_arrayget(tmp, i)); } fz_invert3x3(cs->invmat, cs->matrix); fz_dropobj(dict); *csp = (fz_colorspace*) cs; return nil; }