110 lines
3.8 KiB
C
110 lines
3.8 KiB
C
/*
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* ***** BEGIN GPL LICENSE BLOCK *****
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
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* All rights reserved.
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*
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* The Original Code is: some of this file.
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*
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* ***** END GPL LICENSE BLOCK *****
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* */
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#ifndef BLI_MATH_COLOR_H
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#define BLI_MATH_COLOR_H
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/** \file BLI_math_color.h
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* \ingroup bli
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*/
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* primaries */
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#define BLI_XYZ_SMPTE 0
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#define BLI_XYZ_REC709_SRGB 1
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#define BLI_XYZ_CIE 2
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/* built-in profiles */
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#define BLI_PR_NONE 0
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#define BLI_PR_SRGB 1
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#define BLI_PR_REC709 2
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/* YCbCr */
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#define BLI_YCC_ITU_BT601 0
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#define BLI_YCC_ITU_BT709 1
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#define BLI_YCC_JFIF_0_255 2
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/******************* Conversion to RGB ********************/
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void hsv_to_rgb(float h, float s, float v, float *r, float *g, float *b);
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void hex_to_rgb(char *hexcol, float *r, float *g, float *b);
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void yuv_to_rgb(float y, float u, float v, float *lr, float *lg, float *lb);
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void ycc_to_rgb(float y, float cb, float cr, float *lr, float *lg, float *lb, int colorspace);
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void xyz_to_rgb(float x, float y, float z, float *r, float *g, float *b, int colorspace);
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void cpack_to_rgb(unsigned int col, float *r, float *g, float *b);
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/***************** Conversion from RGB ********************/
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void rgb_to_yuv(float r, float g, float b, float *ly, float *lu, float *lv);
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void rgb_to_ycc(float r, float g, float b, float *ly, float *lcb, float *lcr, int colorspace);
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void rgb_to_hsv(float r, float g, float b, float *lh, float *ls, float *lv);
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void rgb_to_hsv_compat(float r, float g, float b, float *lh, float *ls, float *lv);
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unsigned int rgb_to_cpack(float r, float g, float b);
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unsigned int hsv_to_cpack(float h, float s, float v);
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float rgb_to_grayscale(float rgb[3]);
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unsigned char rgb_to_grayscale_byte(unsigned char rgb[3]);
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/***************** Profile Transformations ********************/
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void gamma_correct(float *c, float gamma);
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float rec709_to_linearrgb(float c);
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float linearrgb_to_rec709(float c);
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float srgb_to_linearrgb(float c);
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float linearrgb_to_srgb(float c);
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void srgb_to_linearrgb_v3_v3(float *col_to, float *col_from);
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void linearrgb_to_srgb_v3_v3(float *col_to, float *col_from);
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/* rgba buffer convenience functions */
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void srgb_to_linearrgb_rgba_buf(float *col, int tot);
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void linearrgb_to_srgb_rgba_buf(float *col, int tot);
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void srgb_to_linearrgb_rgba_rgba_buf(float *col_to, float *col_from, int tot);
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void linearrgb_to_srgb_rgba_rgba_buf(float *col_to, float *col_from, int tot);
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/************************** Other *************************/
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int constrain_rgb(float *r, float *g, float *b);
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void minmax_rgb(short c[3]);
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void rgb_float_set_hue_float_offset(float * rgb, float hue_offset);
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void rgb_byte_set_hue_float_offset(unsigned char * rgb, float hue_offset);
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/***************** lift/gamma/gain / ASC-CDL conversion *****************/
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void lift_gamma_gain_to_asc_cdl(float *lift, float *gamma, float *gain, float *offset, float *slope, float *power);
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void rgb_byte_to_float(const unsigned char *in, float *out);
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void rgb_float_to_byte(const float *in, unsigned char *out);
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#ifdef __cplusplus
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}
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#endif
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#endif /* BLI_MATH_COLOR_H */
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