diff options
Diffstat (limited to 'src/libcolour.h')
| -rw-r--r-- | src/libcolour.h | 156 |
1 files changed, 116 insertions, 40 deletions
diff --git a/src/libcolour.h b/src/libcolour.h index f579dfb..b780c71 100644 --- a/src/libcolour.h +++ b/src/libcolour.h @@ -22,6 +22,28 @@ union libcolour_colour; +#define LIBCOLOUR_ILLUMINANT_A (libcolour_ciexyy_t){.model = LIBCOLOUR_CIEXYY, .x = 0.44757, .y = 0.40745, .Y = 1} +#define LIBCOLOUR_ILLUMINANT_B (libcolour_ciexyy_t){.model = LIBCOLOUR_CIEXYY, .x = 0.34842, .y = 0.35161, .Y = 1} +#define LIBCOLOUR_ILLUMINANT_C (libcolour_ciexyy_t){.model = LIBCOLOUR_CIEXYY, .x = 0.31006, .y = 0.31616, .Y = 1} +#define LIBCOLOUR_ILLUMINANT_D50 (libcolour_ciexyy_t){.model = LIBCOLOUR_CIEXYY, .x = 0.34567, .y = 0.35850, .Y = 1} +#define LIBCOLOUR_ILLUMINANT_D55 (libcolour_ciexyy_t){.model = LIBCOLOUR_CIEXYY, .x = 0.33242, .y = 0.34743, .Y = 1} +#define LIBCOLOUR_ILLUMINANT_D65 (libcolour_ciexyy_t){.model = LIBCOLOUR_CIEXYY, .x = 0.31271, .y = 0.32902, .Y = 1} +#define LIBCOLOUR_ILLUMINANT_D75 (libcolour_ciexyy_t){.model = LIBCOLOUR_CIEXYY, .x = 0.29902, .y = 0.31485, .Y = 1} +#define LIBCOLOUR_ILLUMINANT_E (libcolour_ciexyy_t){.model = LIBCOLOUR_CIEXYY, .x = 1. / 3, .y = 1. / 3, .Y = 1} +#define LIBCOLOUR_ILLUMINANT_F1 (libcolour_ciexyy_t){.model = LIBCOLOUR_CIEXYY, .x = 0.31310, .y = 0.33727, .Y = 1} +#define LIBCOLOUR_ILLUMINANT_F2 (libcolour_ciexyy_t){.model = LIBCOLOUR_CIEXYY, .x = 0.37208, .y = 0.37529, .Y = 1} +#define LIBCOLOUR_ILLUMINANT_F3 (libcolour_ciexyy_t){.model = LIBCOLOUR_CIEXYY, .x = 0.40910, .y = 0.39430, .Y = 1} +#define LIBCOLOUR_ILLUMINANT_F4 (libcolour_ciexyy_t){.model = LIBCOLOUR_CIEXYY, .x = 0.44018, .y = 0.40329, .Y = 1} +#define LIBCOLOUR_ILLUMINANT_F5 (libcolour_ciexyy_t){.model = LIBCOLOUR_CIEXYY, .x = 0.31379, .y = 0.34531, .Y = 1} +#define LIBCOLOUR_ILLUMINANT_F6 (libcolour_ciexyy_t){.model = LIBCOLOUR_CIEXYY, .x = 0.37790, .y = 0.38835, .Y = 1} +#define LIBCOLOUR_ILLUMINANT_F7 (libcolour_ciexyy_t){.model = LIBCOLOUR_CIEXYY, .x = 0.31292, .y = 0.32933, .Y = 1} +#define LIBCOLOUR_ILLUMINANT_F8 (libcolour_ciexyy_t){.model = LIBCOLOUR_CIEXYY, .x = 0.34588, .y = 0.35875, .Y = 1} +#define LIBCOLOUR_ILLUMINANT_F9 (libcolour_ciexyy_t){.model = LIBCOLOUR_CIEXYY, .x = 0.37417, .y = 0.37281, .Y = 1} +#define LIBCOLOUR_ILLUMINANT_F10 (libcolour_ciexyy_t){.model = LIBCOLOUR_CIEXYY, .x = 0.34609, .y = 0.35986, .Y = 1} +#define LIBCOLOUR_ILLUMINANT_F11 (libcolour_ciexyy_t){.model = LIBCOLOUR_CIEXYY, .x = 0.38052, .y = 0.37713, .Y = 1} +#define LIBCOLOUR_ILLUMINANT_F12 (libcolour_ciexyy_t){.model = LIBCOLOUR_CIEXYY, .x = 0.43695, .y = 0.40441, .Y = 1} + + typedef enum libcolour_model { LIBCOLOUR_RGB, LIBCOLOUR_SRGB, @@ -39,34 +61,52 @@ typedef enum libcolour_model { LIBCOLOUR_CIEUVW } libcolour_model_t; +typedef enum libcolour_encoding_type { + LIBCOLOUR_ENCODING_TYPE_LINEAR, + LIBCOLOUR_ENCODING_TYPE_SIMPLE, + LIBCOLOUR_ENCODING_TYPE_REGULAR, + LIBCOLOUR_ENCODING_TYPE_CUSTOM +} libcolour_encoding_type; + typedef enum libcolour_rgb_colour_space { + LIBCOLOUR_RGB_COLOUR_SPACE_CUSTOM_FROM_MEASUREMENTS, + LIBCOLOUR_RGB_COLOUR_SPACE_CUSTOM_FROM_MATRIX, + LIBCOLOUR_RGB_COLOUR_SPACE_CUSTOM_FROM_INV_MATRIX, + LIBCOLOUR_RGB_COLOUR_SPACE_SRGB, + LIBCOLOUR_RGB_COLOUR_SPACE_ADOBE_RGB, + LIBCOLOUR_RGB_COLOUR_SPACE_APPLE_RGB, + LIBCOLOUR_RGB_COLOUR_SPACE_BEST_RGB, + LIBCOLOUR_RGB_COLOUR_SPACE_BETA_RGB, + LIBCOLOUR_RGB_COLOUR_SPACE_BRUCE_RGB, + LIBCOLOUR_RGB_COLOUR_SPACE_CIE_RGB, + LIBCOLOUR_RGB_COLOUR_SPACE_COLORMATCH_RGB, + LIBCOLOUR_RGB_COLOUR_SPACE_DCI_P3_D65, + LIBCOLOUR_RGB_COLOUR_SPACE_DCI_P3_THEATER, + LIBCOLOUR_RGB_COLOUR_SPACE_DON_RGB_4, + LIBCOLOUR_RGB_COLOUR_SPACE_ECI_RGB_V2, + LIBCOLOUR_RGB_COLOUR_SPACE_EKTA_SPACE_PS5, + LIBCOLOUR_RGB_COLOUR_SPACE_ITU_R_BT_601_625_LINE, + LIBCOLOUR_RGB_COLOUR_SPACE_ITU_R_BT_601_525_LINE, + LIBCOLOUR_RGB_COLOUR_SPACE_ITU_R_BT_709, + LIBCOLOUR_RGB_COLOUR_SPACE_ITU_R_BT_2020, + LIBCOLOUR_RGB_COLOUR_SPACE_ITU_R_BT_2100_EOTF_PQ, + LIBCOLOUR_RGB_COLOUR_SPACE_ITU_R_BT_2100_OOTF_PQ, + LIBCOLOUR_RGB_COLOUR_SPACE_ITU_R_BT_2100_OETF_PQ, + LIBCOLOUR_RGB_COLOUR_SPACE_ITU_R_BT_2100_EOTF_HLG, + LIBCOLOUR_RGB_COLOUR_SPACE_ITU_R_BT_2100_OOTF_HLG, + LIBCOLOUR_RGB_COLOUR_SPACE_ITU_R_BT_2100_OETF_HLG, + LIBCOLOUR_RGB_COLOUR_SPACE_LIGHTROOM_RGB, + LIBCOLOUR_RGB_COLOUR_SPACE_NTSC_RGB, + LIBCOLOUR_RGB_COLOUR_SPACE_PAL_SECAM_RGB, + LIBCOLOUR_RGB_COLOUR_SPACE_PROPHOTO_RGB, + LIBCOLOUR_RGB_COLOUR_SPACE_SGI_RGB, + LIBCOLOUR_RGB_COLOUR_SPACE_SMPTE_240M_RGB, + LIBCOLOUR_RGB_COLOUR_SPACE_SMPTE_C_RGB, + LIBCOLOUR_RGB_COLOUR_SPACE_WIDE_GAMUT_RGB } libcolour_rgb_colour_space_t; -typedef struct libcolour_rgb { - enum libcolour_model model; - double R; - double G; - double B; - int with_gamma; - int regular_gamma; - double gamma; - union libcolour_colour red; - union libcolour_colour green; - union libcolour_colour blue; - union libcolour_colour white; - double (*to_encoded_red)(double); - double (*to_decoded_red)(double); - double (*to_encoded_green)(double); - double (*to_decoded_green)(double); - double (*to_encoded_blue)(double); - double (*to_decoded_blue)(double); - double M[3][3]; - double Minv[3][3]; - enum libcolour_rgb_colour_space colour_space; -} libcolour_srgb_t; - typedef struct libcolour_srgb { enum libcolour_model model; double R; @@ -93,25 +133,9 @@ typedef struct libcolour_cielab { enum libcolour_model model; double L; double a; - double n; + double b; } libcolour_cielab_t; -typedef struct libcolour_cieluv { - enum libcolour_model model; - double L; - double u; - double v; - union libcolour_colour white; -} libcolour_cieluv_t; - -typedef struct libcolour_cielch { - enum libcolour_model model; - double L; - double C; - double h; - union libcolour_colour white; -} libcolour_cielch_t; - typedef struct libcolour_yiq { enum libcolour_model model; double Y; @@ -163,6 +187,56 @@ typedef struct libcolour_cieuvw { double v0; } libcolour_cieuvw_t; +typedef struct libcolour_cieluv { + enum libcolour_model model; + double L; + double u; + double v; + struct libcolour_ciexyz white; +} libcolour_cieluv_t; + +typedef struct libcolour_cielch { + enum libcolour_model model; + double L; + double C; + double h; + struct libcolour_ciexyz white; +} libcolour_cielch_t; + +typedef struct libcolour_rgb { + enum libcolour_model model; + double R; + double G; + double B; + int with_gamma; + enum libcolour_encoding_type encoding_type; + double gamma; + double offset; + double slope; + double transition; + double transitioninv; + struct libcolour_ciexyy red; + struct libcolour_ciexyy green; + struct libcolour_ciexyy blue; + struct libcolour_ciexyy white; + double (*to_encoded_red)(double); + double (*to_decoded_red)(double); + double (*to_encoded_green)(double); + double (*to_decoded_green)(double); + double (*to_encoded_blue)(double); + double (*to_decoded_blue)(double); + double M[3][3]; + double Minv[3][3]; + double white_r; + double white_g; + double white_b; + enum libcolour_rgb_colour_space colour_space; +} libcolour_rgb_t; + +/* TODO LMS, L'M'S', ICtCp */ +/* TODO generic additive colour space */ +/* TODO generic subtractive colour space */ + typedef union libcolour_colour { enum libcolour_model model; @@ -189,6 +263,8 @@ double libcolour_srgb_encode(double); double libcolour_srgb_decode(double); int libcolour_delta_e(const libcolour_colour_t*, const libcolour_colour_t*, double*); int libcolour_proper(libcolour_colour_t*); +int libcolour_get_rgb_colour_space(libcolour_colour_t*, libcolour_rgb_colour_space_t); +/* TODO (un)marshal */ |