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Rework the color space support.

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Start work on PNG file reader.
This commit is contained in:
Michael R Sweet
2021-06-05 11:28:32 -04:00
parent 3a133bd1c0
commit 1ea2b7514a
6 changed files with 469 additions and 255 deletions
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9
pdfio-content.h
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@@ -83,6 +83,12 @@ extern const double pdfioSRGBWhitePoint[3] PDFIO_PUBLIC;
// Functions...
//
// Color array functions...
extern pdfio_array_t *pdfioArrayCreateCalibratedColorFromMatrix(pdfio_file_t *pdf, size_t num_colors, double gamma, const double matrix[3][3], const double white_point[3]) PDFIO_PUBLIC;
extern pdfio_array_t *pdfioArrayCreateCalibratedColorFromPrimaries(pdfio_file_t *pdf, size_t num_colors, double gamma, double wx, double wy, double rx, double ry, double gx, double gy, double bx, double by) PDFIO_PUBLIC;
extern pdfio_array_t *pdfioArrayCreateICCBasedColor(pdfio_file_t *pdf, pdfio_obj_t *icc_object) PDFIO_PUBLIC;
extern pdfio_array_t *pdfioArrayCreateIndexedColor(pdfio_file_t *pdf, size_t num_colors, const unsigned char colors[][3]) PDFIO_PUBLIC;
// PDF content drawing functions...
extern bool pdfioContentClip(pdfio_stream_t *st, bool even_odd) PDFIO_PUBLIC;
extern bool pdfioContentDrawImage(pdfio_stream_t *st, const char *name, double x, double y, double w, double h) PDFIO_PUBLIC;
@@ -149,8 +155,7 @@ extern double pdfioImageGetHeight(pdfio_obj_t *obj) PDFIO_PUBLIC;
extern double pdfioImageGetWidth(pdfio_obj_t *obj) PDFIO_PUBLIC;
// Page dictionary helpers...
extern bool pdfioPageDictAddICCColorSpace(pdfio_dict_t *dict, const char *name, pdfio_obj_t *obj) PDFIO_PUBLIC;
extern bool pdfioPageDictAddCalibratedColorSpace(pdfio_dict_t *dict, const char *name, size_t num_colors, double gamma, const double matrix[3][3], const double white_point[3]) PDFIO_PUBLIC;
extern bool pdfioPageDictAddColorSpace(pdfio_dict_t *dict, const char *name, pdfio_array_t *data) PDFIO_PUBLIC;
extern bool pdfioPageDictAddFont(pdfio_dict_t *dict, const char *name, pdfio_obj_t *obj) PDFIO_PUBLIC;
extern bool pdfioPageDictAddImage(pdfio_dict_t *dict, const char *name, pdfio_obj_t *obj) PDFIO_PUBLIC;