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/cvs/rxvt-unicode/src/command.C
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Comparing rxvt-unicode/src/command.C (file contents):
Revision 1.569 by sf-exg, Sat May 14 08:31:26 2016 UTC vs.
Revision 1.574 by root, Thu Jun 30 14:07:43 2016 UTC

3332 { 3332 {
3333 process_xterm_seq (arg, s, eh); 3333 process_xterm_seq (arg, s, eh);
3334 free (s); 3334 free (s);
3335 } 3335 }
3336 } 3336 }
3337}
3338
3339static unsigned int
3340colorcube_index (unsigned int idx_r,
3341 unsigned int idx_g,
3342 unsigned int idx_b)
3343{
3344 assert (idx_r < Red_levels);
3345 assert (idx_g < Green_levels);
3346 assert (idx_b < Blue_levels);
3347
3348 return idx_r * Blue_levels * Green_levels +
3349 idx_g * Blue_levels +
3350 idx_b;
3351}
3352
3353/*
3354 * Find the nearest color slot in the hidden color cube,
3355 * adapt its value to the 24bit RGB color.
3356 */
3357unsigned int
3358rxvt_term::map_rgb24_color (unsigned int r, unsigned int g, unsigned int b)
3359{
3360 r &= 0xff;
3361 g &= 0xff;
3362 b &= 0xff;
3363
3364 unsigned int color = (r << 16) | (g << 8) | b;
3365 unsigned int idx_r = r / (0xff / (Red_levels - 1));
3366 unsigned int idx_g = g / (0xff / (Green_levels - 1));
3367 unsigned int idx_b = b / (0xff / (Blue_levels - 1));
3368 unsigned int idx = colorcube_index (idx_r, idx_g, idx_b);
3369
3370 if (rgb24_color[idx] == color)
3371 return idx + minTermCOLOR24;
3372
3373 /* we allow one of the 6 directly neighbouring colours */
3374 /* to replace the current color, if they not used recently */
3375 static const signed char dxyz[][3] = {
3376 0, 0, 0,
3377 0, 0, -1,
3378 0, 0, +1,
3379 0, -1, 0,
3380 0, +1, 0,
3381 -1, 0, 0,
3382 +1, 0, 0,
3383 };
3384
3385 for (int n = 0; n < ecb_array_length (dxyz); ++n)
3386 {
3387 int r = idx_r + dxyz[n][0];
3388 int g = idx_r + dxyz[n][1];
3389 int b = idx_r + dxyz[n][2];
3390
3391 if (!IN_RANGE_EXC (r, 0, Red_levels))
3392 continue;
3393
3394 if (!IN_RANGE_EXC (g, 0, Green_levels))
3395 continue;
3396
3397 if (!IN_RANGE_EXC (b, 0, Blue_levels))
3398 continue;
3399
3400 unsigned int index = colorcube_index (r, g, b);
3401
3402 // minor issue: could update index 0 few more times
3403 if ((rgb24_seqno[index] | rgb24_color[index]) == 0)
3404 {
3405 idx = index;
3406 goto update;
3407 }
3408
3409 if (rgb24_color[index] == color)
3410 return index + minTermCOLOR24;
3411
3412 // like (rgb24_seqno[idx] > rgb24_seqno[index])
3413 // but also handles wrap around values good enough
3414 if ((uint16_t)(rgb24_seqno[idx] - rgb24_seqno[index]) < 0x7fff)
3415 idx = index;
3416 }
3417
3418update:
3419 rgb24_color[idx] = color;
3420 rgb24_seqno[idx] = ++rgb24_sequence;
3421
3422 idx += minTermCOLOR24;
3423 pix_colors_focused [idx].free (this);
3424 pix_colors_focused [idx].set (this, rgba (r * 0x0101,
3425 g * 0x0101,
3426 b * 0x0101));
3427 update_fade_color (idx, false);
3428
3429 return idx;
3337} 3430}
3338 3431
3339void 3432void
3340rxvt_term::process_color_seq (int report, int color, const char *str, char resp) 3433rxvt_term::process_color_seq (int report, int color, const char *str, char resp)
3341{ 3434{
3976 if (nargs > i + 2 && arg[i + 1] == 5) 4069 if (nargs > i + 2 && arg[i + 1] == 5)
3977 { 4070 {
3978 scr_color ((unsigned int) (minCOLOR + arg[i + 2]), Color_fg); 4071 scr_color ((unsigned int) (minCOLOR + arg[i + 2]), Color_fg);
3979 i += 2; 4072 i += 2;
3980 } 4073 }
4074 else if (nargs > i + 4 && arg[i + 1] == 2)
4075 {
4076 unsigned int r = arg[i + 2];
4077 unsigned int g = arg[i + 3];
4078 unsigned int b = arg[i + 4];
4079 unsigned int idx = map_rgb24_color (r, g, b);
4080 scr_color (idx, Color_fg);
4081 i += 4;
4082 }
3981 break; 4083 break;
3982 case 39: /* default fg */ 4084 case 39: /* default fg */
3983 scr_color (Color_fg, Color_fg); 4085 scr_color (Color_fg, Color_fg);
3984 break; 4086 break;
3985 4087
3996 case 48: // set bg color, ISO 8613-6 4098 case 48: // set bg color, ISO 8613-6
3997 if (nargs > i + 2 && arg[i + 1] == 5) 4099 if (nargs > i + 2 && arg[i + 1] == 5)
3998 { 4100 {
3999 scr_color ((unsigned int) (minCOLOR + arg[i + 2]), Color_bg); 4101 scr_color ((unsigned int) (minCOLOR + arg[i + 2]), Color_bg);
4000 i += 2; 4102 i += 2;
4103 }
4104 else if (nargs > i + 4 && arg[i + 1] == 2)
4105 {
4106 unsigned int r = arg[i + 2];
4107 unsigned int g = arg[i + 3];
4108 unsigned int b = arg[i + 4];
4109 unsigned int idx = map_rgb24_color (r, g, b);
4110 scr_color (idx, Color_bg);
4111 i += 4;
4001 } 4112 }
4002 break; 4113 break;
4003 case 49: /* default bg */ 4114 case 49: /* default bg */
4004 scr_color (Color_bg, Color_bg); 4115 scr_color (Color_bg, Color_bg);
4005 break; 4116 break;

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