| … | |
… | |
| 3334 | free (s); |
3334 | free (s); |
| 3335 | } |
3335 | } |
| 3336 | } |
3336 | } |
| 3337 | } |
3337 | } |
| 3338 | |
3338 | |
|
|
3339 | static unsigned int |
|
|
3340 | colorcube_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 | |
| 3339 | /* |
3353 | /* |
| 3340 | * Find the nearest color slot in the hidden color cube, |
3354 | * Find the nearest color slot in the hidden color cube, |
| 3341 | * adapt its value to the 24bit RGB color. |
3355 | * adapt its value to the 24bit RGB color. |
| 3342 | */ |
3356 | */ |
| 3343 | unsigned int |
3357 | unsigned int |
| 3344 | rxvt_term::map_rgb24_color (unsigned int r, unsigned int g, unsigned int b) |
3358 | rxvt_term::map_rgb24_color (unsigned int r, unsigned int g, unsigned int b) |
| 3345 | { |
3359 | { |
| 3346 | unsigned int idx_r = (r & 0xff) / (0xff / (Red_levels - 1)); |
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 * (Red_levels - 1) / 0xff; |
| 3347 | unsigned int idx_g = (g & 0xff) / (0xff / (Green_levels - 1)); |
3366 | unsigned int idx_g = g * (Green_levels - 1) / 0xff; |
| 3348 | unsigned int idx_b = (b & 0xff) / (0xff / (Blue_levels - 1)); |
3367 | unsigned int idx_b = b * (Blue_levels - 1) / 0xff; |
| 3349 | unsigned int idx; |
3368 | unsigned int idx = colorcube_index (idx_r, idx_g, idx_b); |
| 3350 | |
3369 | |
| 3351 | idx = minTermCOLOR24 + idx_r * Blue_levels * Green_levels + |
3370 | if (rgb24_color[idx] == color) |
| 3352 | idx_g * Blue_levels + |
3371 | return idx + minTermCOLOR24; |
| 3353 | idx_b; |
|
|
| 3354 | |
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 )) continue; |
|
|
3392 | if (!IN_RANGE_EXC (g, 0, Green_levels)) continue; |
|
|
3393 | if (!IN_RANGE_EXC (b, 0, Blue_levels )) continue; |
|
|
3394 | |
|
|
3395 | unsigned int index = colorcube_index (r, g, b); |
|
|
3396 | |
|
|
3397 | // minor issue: could update index 0 few more times |
|
|
3398 | if ((rgb24_seqno[index] | rgb24_color[index]) == 0) |
|
|
3399 | { |
|
|
3400 | idx = index; |
|
|
3401 | goto update; |
|
|
3402 | } |
|
|
3403 | |
|
|
3404 | if (rgb24_color[index] == color) |
|
|
3405 | return index + minTermCOLOR24; |
|
|
3406 | |
|
|
3407 | // like (rgb24_seqno[idx] > rgb24_seqno[index]) |
|
|
3408 | // but also handles wrap around values good enough |
|
|
3409 | if ((uint16_t)(rgb24_seqno[idx] - rgb24_seqno[index]) < 0x7fff) |
|
|
3410 | idx = index; |
|
|
3411 | } |
|
|
3412 | |
|
|
3413 | update: |
|
|
3414 | rgb24_color[idx] = color; |
|
|
3415 | rgb24_seqno[idx] = ++rgb24_sequence; |
|
|
3416 | |
|
|
3417 | idx += minTermCOLOR24; |
| 3355 | pix_colors_focused [idx].free (this); |
3418 | pix_colors_focused [idx].free (this); |
| 3356 | pix_colors_focused [idx].set (this, rgba (r * 0x0101, |
3419 | pix_colors_focused [idx].set (this, rgba (r * 0x0101, g * 0x0101, b * 0x0101)); |
| 3357 | g * 0x0101, |
|
|
| 3358 | b * 0x0101)); |
|
|
| 3359 | update_fade_color (idx, false); |
3420 | update_fade_color (idx, false); |
| 3360 | |
3421 | |
| 3361 | return idx; |
3422 | return idx; |
| 3362 | } |
3423 | } |
| 3363 | |
3424 | |
