4 * Copyright (C) 1997-2011 Adam Williams <broadcast at earthling dot net>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 #ifndef __BCCOLORS_H__
23 #define __BCCOLORS_H__
25 // Duplicate filename in guicast
27 #include "bccolors.inc"
35 Digital YCbCr is derived from analog RGB as follows:
36 RGB are 0..1 (gamma corrected supposedly),
38 Y Py = Kr * R + Kg * G + Kb * B
39 U Pb = - 0.5*Kr/(1-Kb)*R - 0.5*Kg/(1-Kb)*G + 0.5*B
40 V Pr = 0.5*R - 0.5*Kg/(1-Kr)*G - 0.5*Kb/(1-Kr)*B
42 R = Py + Pr * 2*(1-Kr)
43 G = Py - Pr * 2*Kr*(1-Kr)/Kg - Pb * 2*Kb*(1-Kb)/Kg
44 B = Py + Pb * 2*(1-Kb)
46 bt601, white vector= Kr=0.299,Kg=0.587,Kb=0.114
47 Py = + 0.299000*R + 0.587000*G + 0.114000*B
48 Pb = - 0.168736*R - 0.331264*G + 0.500000*B
49 Pr = + 0.500000*R - 0.418698*G - 0.081312*B
52 G = Py - 0.714136*Pr - 0.344136*Pb
55 equations zeroed at (0,128,128), range (255,255,255)
57 Y = 0 + 0.299000*R + 0.587000*G + 0.114000*B
58 Cb = 128 - 0.168736*R - 0.331264*G + 0.500000*B
59 Cr = 128 + 0.500000*R - 0.418698*G - 0.081312*B
61 R = Y + 1.402000*(Cr-128)
62 G = Y - 0.714136*(Cr-128) - 0.344136*(Cb-128)
63 B = Y + 1.772000*(Cb-128)
65 equations zeroed at (16,128,128), range (219,224,224)
66 Y,Cb,Cr = (16,128,128) + (219*Py,224*Pb,224*Pr)
69 Y = 16 + 0.256788*R + 0.504129*G + 0.097906*B
70 Cb = 128 - 0.148227*R - 0.290992*G + 0.439216*B
71 Cr = 128 + 0.439216*R - 0.367789*G - 0.071426*B
73 R = (Y-16)*1.164384 + 1.596027*(Cr-128)
74 G = (Y-16)*1.164384 - 0.812968*(Cr-128) - 0.391762*(Cb-128)
75 B = (Y-16)*1.164384 + 2.017232*(Cb-128)
77 bt.709, white vector= Kr=0.2126,Kg=0.7152,Kb=0.0722
78 Py = + 0.212600*R + 0.715200*G + 0.072200*B
79 Pb = - 0.114572*R - 0.385428*G + 0.500000*B
80 Pr = + 0.500000*R - 0.454153*G - 0.045847*B
82 equations zeroed at (0,128,128), range (255,255,255)
84 Y = 0 + 0.212600*R + 0.715200*G + 0.072200*B
85 Cb = 128 - 0.114572*R - 0.385428*G + 0.500000*B
86 Cr = 128 + 0.500000*R - 0.454153*G - 0.045847*B
88 R = Y + 1.574800*(Cr-128)
89 G = Y - 0.468124*(Cr-128) - 0.187324*(Cb-128)
90 B = Y + 1.855600*(Cb-128)
92 equations zeroed at (16,128,128), range (219,224,224)
93 Y,Cb,Cr = (16,128,128) + (219*Py,224*Pb,224*Pr)
94 Y = 16 + 0.182586*R + 0.614231*G + 0.062007*B
95 Cb = 128 - 0.100644*R - 0.338572*G + 0.439216*B
96 Cr = 128 + 0.439216*R - 0.398942*G - 0.040276*B
98 R = (Y-16)*1.164384 + 1.792741*(Cr-128)
99 G = (Y-16)*1.164384 - 0.532909*(Cr-128) - 0.213249*(Cb-128)
100 B = (Y-16)*1.164384 + 2.112402*(Cb-128)
103 // white vector normalized, so:
106 #define BT601_Kr 0.299
107 #define BT601_Kb 0.114
109 #define BT709_Kr 0.2126
110 #define BT709_Kb 0.0722
112 #define BT2020_Kr 0.2627
113 #define BT2020_Kb 0.0593
117 int mpeg, yzero, uvzero;
118 int ymin8, ymax8, ymin16, ymax16;
119 int uvmin8, uvmax8, uvmin16, uvmax16;
121 float yminf, ymaxf, yrangef;
122 float uvminf, uvmaxf, uvrangef;
123 float r_to_y, g_to_y, b_to_y;
124 float r_to_u, g_to_u, b_to_u;
125 float r_to_v, g_to_v, b_to_v;
126 float v_to_r, v_to_g;
127 float u_to_g, u_to_b;
131 void init(double Kr, double Kb, int mpeg);
132 void init_tables(int len,
133 int *rtoy, int *rtou, int *rtov,
134 int *gtoy, int *gtou, int *gtov,
135 int *btoy, int *btou, int *btov,
136 int *ytab, int *vtor, int *vtog, int *utog, int *utob);
137 void init_tables(int len,
138 float *vtorf, float *vtogf, float *utogf, float *utobf);
140 // dont use pointers,
141 // offsets do not require indirect access
142 #define rtoy16 (tab+0x00000)
143 #define gtoy16 (tab+0x10000)
144 #define btoy16 (tab+0x20000)
145 #define rtou16 (tab+0x30000)
146 #define gtou16 (tab+0x40000)
147 #define btou16 (tab+0x50000)
148 #define rtov16 (tab+0x60000)
149 #define gtov16 (tab+0x70000)
150 #define btov16 (tab+0x80000)
151 #define ytab16 (tab+0x90000)
152 #define vtor16 (tab+0xa0000)
153 #define vtog16 (tab+0xb0000)
154 #define utog16 (tab+0xc0000)
155 #define utob16 (tab+0xd0000)
157 #define rtoy8 (tab+0xe0000)
158 #define gtoy8 (tab+0xe0100)
159 #define btoy8 (tab+0xe0200)
160 #define rtou8 (tab+0xe0300)
161 #define gtou8 (tab+0xe0400)
162 #define btou8 (tab+0xe0500)
163 #define rtov8 (tab+0xe0600)
164 #define gtov8 (tab+0xe0700)
165 #define btov8 (tab+0xe0800)
166 #define ytab8 (tab+0xe0900)
167 #define vtor8 (tab+0xe0a00)
168 #define vtog8 (tab+0xe0b00)
169 #define utog8 (tab+0xe0c00)
170 #define utob8 (tab+0xe0d00)
172 #define vtor16f (tabf+0x00000)
173 #define vtog16f (tabf+0x10000)
174 #define utog16f (tabf+0x20000)
175 #define utob16f (tabf+0x30000)
177 #define vtor8f (tabf+0x40000)
178 #define vtog8f (tabf+0x40100)
179 #define utog8f (tabf+0x40200)
180 #define utob8f (tabf+0x40300)
185 void yuv_set_colors(int color_space, int color_range);
186 inline int is_mpeg() { return mpeg; }
189 static float rgb_to_yuv_matrix[10];
190 static float yuv_to_rgb_matrix[10];
192 #define YUV_rgb_to_yuv_8(r,g,b, y,u,v) \
193 y = iclip((rtoy8[r] + gtoy8[g] + btoy8[b] + yzero) >> 16, ymin8, ymax8); \
194 u = iclip((rtou8[r] + gtou8[g] + btou8[b] + uvzero) >> 16, uvmin8, uvmax8); \
195 v = iclip((rtov8[r] + gtov8[g] + btov8[b] + uvzero) >> 16, uvmin8, uvmax8)
197 bc_always_inline void rgb_to_yuv_8(int r, int g, int b, int &y, int &u, int &v) {
198 YUV_rgb_to_yuv_8(r,g,b, y,u,v);
200 bc_always_inline void rgb_to_yuv_8(int r, int g, int b, uint8_t &y, uint8_t &u, uint8_t &v) {
201 YUV_rgb_to_yuv_8(r,g,b, y,u,v);
203 bc_always_inline void rgb_to_yuv_8(int &y, int &u, int &v) {
204 int r = y, g = u, b = v; YUV_rgb_to_yuv_8(r, g, b, y, u, v);
207 #define YUV_rgb_to_yuv_16(r,g,b, y,u,v) \
208 y = iclip((rtoy16[r] + gtoy16[g] + btoy16[b] + yzero) >> 8, ymin16, ymax16); \
209 u = iclip((rtou16[r] + gtou16[g] + btou16[b] + uvzero) >> 8, uvmin16, uvmax16); \
210 v = iclip((rtov16[r] + gtov16[g] + btov16[b] + uvzero) >> 8, uvmin16, uvmax16)
212 bc_always_inline void rgb_to_yuv_16(int r, int g, int b, int &y, int &u, int &v) {
213 YUV_rgb_to_yuv_16(r,g,b, y,u,v);
215 bc_always_inline void rgb_to_yuv_16(int r, int g, int b, uint16_t &y, uint16_t &u, uint16_t &v) {
216 YUV_rgb_to_yuv_16(r,g,b, y,u,v);
218 bc_always_inline void rgb_to_yuv_16(int &y, int &u, int &v) {
219 int r = y, g = u, b = v;
220 YUV_rgb_to_yuv_16(r, g, b, y, u, v);
223 bc_always_inline void rgb_to_yuv_f(float r, float g, float b, float &y, float &u, float &v) {
224 y = r * r_to_y + g * g_to_y + b * b_to_y + yminf;
225 u = r * r_to_u + g * g_to_u + b * b_to_u;
226 v = r * r_to_v + g * g_to_v + b * b_to_v;
228 bc_always_inline void rgb_to_yuv_f(float r, float g, float b, uint8_t &y, uint8_t &u, uint8_t &v) {
229 int ir = iclip(r*0x100, 0, 0xff);
230 int ig = iclip(g*0x100, 0, 0xff);
231 int ib = iclip(b*0x100, 0, 0xff);
232 rgb_to_yuv_8(ir,ig,ib, y,u,v);
234 bc_always_inline void rgb_to_yuv_f(float r, float g, float b, uint16_t &y, uint16_t &u, uint16_t &v) {
235 int ir = iclip(r*0x10000, 0, 0xffff);
236 int ig = iclip(g*0x10000, 0, 0xffff);
237 int ib = iclip(b*0x10000, 0, 0xffff);
238 rgb_to_yuv_16(ir,ig,ib, y,u,v);
241 #define YUV_yuv_to_rgb_8(r,g,b, y,u,v) \
242 r = iclip((ytab8[y] + vtor8[v]) >> 16, 0, 0xff); \
243 g = iclip((ytab8[y] + utog8[u] + vtog8[v]) >> 16, 0, 0xff); \
244 b = iclip((ytab8[y] + utob8[u]) >> 16, 0, 0xff)
246 bc_always_inline void yuv_to_rgb_8(int &r, int &g, int &b, int y, int u, int v) {
247 YUV_yuv_to_rgb_8(r,g,b, y,u,v);
249 bc_always_inline void yuv_to_rgb_8(uint8_t &r, uint8_t &g, uint8_t &b, int y, int u, int v) {
250 YUV_yuv_to_rgb_8(r,g,b, y,u,v);
252 bc_always_inline void yuv_to_rgb_8(int &r, int &g, int &b) {
253 int y = r, u = g, v = b; YUV_yuv_to_rgb_8(r,g,b, y,u,v);
255 bc_always_inline void yuv_to_rgb_8(float &r, float &g, float &b, int y, int u, int v) {
256 int ir, ig, ib; yuv_to_rgb_8(ir,ig,ib, y,u,v);
257 float s = 1/255.f; r = s*ir; g = s*ig; b = s*ib;
260 #define YUV_yuv_to_rgb_16(r,g,b, y,u,v) \
261 r = iclip((ytab16[y] + vtor16[v]) >> 8, 0, 0xffff); \
262 g = iclip((ytab16[y] + utog16[u] + vtog16[v]) >> 8, 0, 0xffff); \
263 b = iclip((ytab16[y] + utob16[u]) >> 8, 0, 0xffff)
265 bc_always_inline void yuv_to_rgb_16(int &r, int &g, int &b, int y, int u, int v) {
266 YUV_yuv_to_rgb_16(r,g,b, y,u,v);
268 bc_always_inline void yuv_to_rgb_16(uint16_t &r, uint16_t &g, uint16_t &b, int y, int u, int v) {
269 YUV_yuv_to_rgb_16(r,g,b, y,u,v);
271 bc_always_inline void yuv_to_rgb_16(int &r, int &g, int &b) {
272 int y = r, u = g, v = b; YUV_yuv_to_rgb_16(r,g,b, y,u,v);
274 bc_always_inline void yuv_to_rgb_16(float &r, float &g, float &b, int y, int u, int v) {
275 int ir, ig, ib; YUV_yuv_to_rgb_16(ir,ig,ib, y,u,v);
276 float s = 1/65535.f; r = s*ir; g = s*ig; b = s*ib;
279 bc_always_inline void yuv_to_rgb_f(float &r, float &g, float &b, float y, float u, float v) {
280 y = (y-yminf) / yrangef;
282 g = y + u_to_g * u + v_to_g * v;
285 bc_always_inline void yuv_to_rgb_f(float &r, float &g, float &b, uint8_t &y, uint8_t &u, uint8_t &v) {
286 yuv_to_rgb_8(r,g,b, y,u,v);
288 bc_always_inline void yuv_to_rgb_f(float &r, float &g, float &b, uint16_t &y, uint16_t &u, uint16_t &v) {
289 yuv_to_rgb_16(r,g,b, y,u,v);
292 bc_always_inline int rgb_to_y_8(int r, int g, int b) {
293 return (rtoy8[r] + gtoy8[g] + btoy8[b] + yzero) >> 16;
295 bc_always_inline int rgb_to_y_16(int r, int g, int b) {
296 return (rtoy16[r] + gtoy16[g] + btoy16[b] + yzero) >> 8;
298 bc_always_inline float rgb_to_y_f(float r, float g, float b) {
299 return r * r_to_y + g * g_to_y + b * b_to_y + yminf;
302 // For easier programming. Doesn't do anything.
303 // unused cases in macro expansions, mismatched argument types
304 inline void yuv_to_rgb_8(float &r, float &g, float &b, float y, float u, float v) {}
305 inline void yuv_to_rgb_16(float &r, float &g, float &b, float y, float u, float v) {}
306 inline void yuv_to_rgb_f(int &r, int &g, int &b, int y, int u, int v) {}
307 inline void yuv_to_rgb_f(uint8_t &r, uint8_t &g, uint8_t &b, int&y, int u, int v) {}
308 inline void yuv_to_rgb_f(uint16_t &r, uint16_t &g, uint16_t &b, int y, int u, int v) {}
310 inline void rgb_to_yuv_8(float r, float g, float b, float &y, float &u, float &v) {}
311 inline void rgb_to_yuv_16(float r, float g, float b, float &y, float &u, float &v) {}
312 inline void rgb_to_yuv_f(int r, int g, int b, int &y, int &u, int &v) {}
313 inline void rgb_to_yuv_f(uint8_t r, uint8_t g, uint8_t b, int &y, int &u, int &v) {}
314 inline void rgb_to_yuv_f(uint16_t r, uint16_t g, uint16_t b, int &y, int &u, int &v) {}
324 // All units are 0 - 1
325 static int rgb_to_hsv(float r, float g, float b, float &h, float &s, float &v);
326 static int hsv_to_rgb(float &r, float &g, float &b, float h, float s, float v);
328 // YUV units are 0 - max. HSV units are 0 - 1
329 static int yuv_to_hsv(int y, int u, int v, float &h, float &s, float &va, int max);
330 static int hsv_to_yuv(int &y, int &u, int &v, float h, float s, float va, int max);
331 // Dummies for macros
332 static int yuv_to_hsv(float y, float u, float v, float &h, float &s, float &va, float max) { return 0; };
333 static int hsv_to_yuv(float &y, float &u, float &v, float h, float s, float va, float max) { return 0; };
338 #define BLACK 0x000000
339 #define WHITE 0xFFFFFF
341 #define LTBLUE 0x9090FF
342 #define BLUE 0x0000FF
343 #define DKBLUE 0x000090
345 #define LTPINK 0xFFC0C0
346 #define PINK 0xFF8080
349 #define LTGREEN 0xC0FFC0
350 #define GREEN 0x00FF00
351 #define DKGREEN 0x009000
353 #define YELLOW 0xFFFF00
354 #define LTYELLOW 0xFFFFA0
355 #define MEYELLOW 0xFFFF00
356 #define MDYELLOW 0xFFFFD2
357 #define DKYELLOW 0xFFFFB4
359 #define LTCYAN 0x00CBCB
360 #define MECYAN 0x009696
361 #define MDCYAN 0x007E7E
362 #define DKCYAN 0x004949
364 #define LTPURPLE 0xFFC0FF
365 #define MEPURPLE 0xFF00FF
366 #define MDPURPLE 0xC000C0
367 #define DKPURPLE 0xA000A0
369 #define LTGREY 0xE0E0E0
370 #define MEGREY 0xAFAFAF
371 #define DMGREY 0x999999
372 #define MDGREY 0x7D7D7D
373 #define DKGREY 0x4B4B4B
375 #define BLOND 0xb4b487
376 #define SLBLUE 0x6040c0
378 #define MNGREY 0xe6e6e6
379 #define FGGREY 0xe3e3e3
380 #define MNBLUE 0x003cff
381 #define ORANGE 0xffdd76
382 #define FTGREY 0xbcbcbc