| … | |
… | |
| 3332 | b &= 0xff; |
3332 | b &= 0xff; |
| 3333 | a &= 0xff; |
3333 | a &= 0xff; |
| 3334 | |
3334 | |
| 3335 | uint32_t color = (a << 24) | (r << 16) | (g << 8) | b; |
3335 | uint32_t color = (a << 24) | (r << 16) | (g << 8) | b; |
| 3336 | |
3336 | |
| 3337 | unsigned int idx_r = r * (Red_levels - 1) / 0xff; |
|
|
| 3338 | unsigned int idx_g = g * (Green_levels - 1) / 0xff; |
|
|
| 3339 | unsigned int idx_b = b * (Blue_levels - 1) / 0xff; |
|
|
| 3340 | unsigned int idx = colorcube_index (idx_r, idx_g, idx_b); |
|
|
| 3341 | |
|
|
| 3342 | /* we allow one of the 6 directly neighbouring colours */ |
3337 | /* we allow one of the 6 closest neighbouring colours */ |
| 3343 | /* to replace the current color, if they not used recently */ |
3338 | /* to replace the current color, if they not used recently */ |
| 3344 | static const signed char dxyz[][3] = { |
3339 | static const signed char dxyz[][3] = { |
| 3345 | 0, 0, 0, |
3340 | 0, 0, 0, |
| 3346 | 0, 0, +1, |
3341 | 0, 0, 4, |
| 3347 | 0, 0, -1, |
|
|
| 3348 | 0, +1, 0, |
3342 | 0, 4, 0, |
| 3349 | 0, -1, 0, |
|
|
| 3350 | +1, 0, 0, |
3343 | 4, 0, 0, |
| 3351 | -1, 0, 0, |
3344 | 0, 4, 4, |
|
|
3345 | 4, 4, 0, |
|
|
3346 | 4, 0, 4, |
| 3352 | }; |
3347 | }; |
| 3353 | |
3348 | |
|
|
3349 | static const unsigned char color_level[8][32] = { |
|
|
3350 | // neighbour index |
|
|
3351 | {0, 0, 1, 0, 0, 1, 1, 2, 2, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3}, |
|
|
3352 | {0, 1, 0, 1, 1, 2, 1, 1, 2, 2, 3, 3, 2, 2, 2, 3, 3, 3, 4, 4, 4, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4}, |
|
|
3353 | {0, 0, 1, 2, 1, 1, 2, 3, 3, 2, 2, 3, 3, 4, 4, 3, 3, 3, 4, 4, 5, 5, 5, 4, 4, 4, 5, 5, 5, 5, 5, 5}, |
|
|
3354 | {0, 0, 2, 1, 2, 3, 2, 2, 3, 4, 4, 3, 3, 4, 4, 5, 5, 4, 4, 5, 5, 5, 6, 6, 5, 5, 5, 6, 6, 6, 6, 6}, |
|
|
3355 | // Red_levels/Green_levels/Blue_levels index |
|
|
3356 | {0, 0, 0, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3}, |
|
|
3357 | {0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4}, |
|
|
3358 | {0, 1, 1, 1, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5}, |
|
|
3359 | {0, 1, 1, 2, 2, 2, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 6, 6}, |
|
|
3360 | }; |
|
|
3361 | |
|
|
3362 | unsigned int idx; |
|
|
3363 | |
| 3354 | for (int n = 0; n < ecb_array_length (dxyz); ++n) |
3364 | for (int n = 0; n < ecb_array_length (dxyz); ++n) |
| 3355 | { |
3365 | { |
| 3356 | int r = idx_r + dxyz[n][0]; |
3366 | unsigned int idx_r = color_level[ Red_levels - dxyz[n][0]][r / 8]; |
| 3357 | int g = idx_g + dxyz[n][1]; |
3367 | unsigned int idx_g = color_level[Green_levels - dxyz[n][1]][g / 8]; |
| 3358 | int b = idx_b + dxyz[n][2]; |
3368 | unsigned int idx_b = color_level[ Blue_levels - dxyz[n][2]][b / 8]; |
| 3359 | |
|
|
| 3360 | if (!IN_RANGE_EXC (r, 0, Red_levels )) continue; |
|
|
| 3361 | if (!IN_RANGE_EXC (g, 0, Green_levels)) continue; |
|
|
| 3362 | if (!IN_RANGE_EXC (b, 0, Blue_levels )) continue; |
|
|
| 3363 | |
|
|
| 3364 | unsigned int index = colorcube_index (r, g, b); |
3369 | unsigned int index = colorcube_index (idx_r, idx_g, idx_b); |
|
|
3370 | |
|
|
3371 | if (n == 0) |
|
|
3372 | idx = index; |
| 3365 | |
3373 | |
| 3366 | if (rgb24_color[index] == color) |
3374 | if (rgb24_color[index] == color) |
| 3367 | { |
3375 | { |
| 3368 | rgb24_seqno[index] = ++rgb24_sequence; |
3376 | rgb24_seqno[index] = ++rgb24_sequence; |
| 3369 | return index + minTermCOLOR24; |
3377 | return index + minTermCOLOR24; |
