diff options
author | Campbell Barton <ideasman42@gmail.com> | 2012-06-10 16:33:27 +0400 |
---|---|---|
committer | Campbell Barton <ideasman42@gmail.com> | 2012-06-10 16:33:27 +0400 |
commit | 219eca0f515f9a54953566539520fde37f2ea13b (patch) | |
tree | 55032be25b32e59e4281aeb67660e5b48ec861ee /source/blender/blenkernel/intern/colortools.c | |
parent | c27472c04ef294a1de6ab9804c3b87f5635a8fcd (diff) |
mango request - add alpha to histogram & sample line.
Diffstat (limited to 'source/blender/blenkernel/intern/colortools.c')
-rw-r--r-- | source/blender/blenkernel/intern/colortools.c | 62 |
1 files changed, 32 insertions, 30 deletions
diff --git a/source/blender/blenkernel/intern/colortools.c b/source/blender/blenkernel/intern/colortools.c index d15f678f1c5..12dee600532 100644 --- a/source/blender/blenkernel/intern/colortools.c +++ b/source/blender/blenkernel/intern/colortools.c @@ -910,7 +910,7 @@ DO_INLINE int get_bin_float(float f) return bin; } -DO_INLINE void save_sample_line(Scopes *scopes, const int idx, const float fx, const float rgb[3], const float ycc[3]) +static void save_sample_line(Scopes *scopes, const int idx, const float fx, const float rgb[3], const float ycc[3]) { float yuv[3]; @@ -953,9 +953,9 @@ void scopes_update(Scopes *scopes, ImBuf *ibuf, int use_color_management) double div, divl; float *rf = NULL; unsigned char *rc = NULL; - unsigned int *bin_r, *bin_g, *bin_b, *bin_lum; + unsigned int *bin_lum, *bin_r, *bin_g, *bin_b, *bin_a; int savedlines, saveline; - float rgb[3], ycc[3], luma; + float rgba[4], ycc[3], luma; int ycc_mode = -1; const short is_float = (ibuf->rect_float != NULL); @@ -987,11 +987,12 @@ void scopes_update(Scopes *scopes, ImBuf *ibuf, int use_color_management) break; } - /* temp table to count pix value for histo */ - bin_r = MEM_callocN(256 * sizeof(unsigned int), "temp historgram bins"); - bin_g = MEM_callocN(256 * sizeof(unsigned int), "temp historgram bins"); - bin_b = MEM_callocN(256 * sizeof(unsigned int), "temp historgram bins"); - bin_lum = MEM_callocN(256 * sizeof(unsigned int), "temp historgram bins"); + /* temp table to count pix value for histogram */ + bin_r = MEM_callocN(256 * sizeof(unsigned int), "temp historgram bins"); + bin_g = MEM_callocN(256 * sizeof(unsigned int), "temp historgram bins"); + bin_b = MEM_callocN(256 * sizeof(unsigned int), "temp historgram bins"); + bin_a = MEM_callocN(256 * sizeof(unsigned int), "temp historgram bins"); + bin_lum = MEM_callocN(256 * sizeof(unsigned int), "temp historgram bins"); /* convert to number of lines with logarithmic scale */ scopes->sample_lines = (scopes->accuracy * 0.01f) * (scopes->accuracy * 0.01f) * ibuf->y; @@ -1038,27 +1039,28 @@ void scopes_update(Scopes *scopes, ImBuf *ibuf, int use_color_management) if (is_float) { if (use_color_management) - linearrgb_to_srgb_v3_v3(rgb, rf); + linearrgb_to_srgb_v3_v3(rgba, rf); else - copy_v3_v3(rgb, rf); + copy_v3_v3(rgba, rf); + rgba[3] = rf[3]; } else { - for (c = 0; c < 3; c++) - rgb[c] = rc[c] * INV_255; + for (c = 0; c < 4; c++) + rgba[c] = rc[c] * INV_255; } /* we still need luma for histogram */ - luma = rgb_to_luma(rgb); + luma = rgb_to_luma(rgba); /* check for min max */ if (ycc_mode == -1) { for (c = 0; c < 3; c++) { - if (rgb[c] < scopes->minmax[c][0]) scopes->minmax[c][0] = rgb[c]; - if (rgb[c] > scopes->minmax[c][1]) scopes->minmax[c][1] = rgb[c]; + if (rgba[c] < scopes->minmax[c][0]) scopes->minmax[c][0] = rgba[c]; + if (rgba[c] > scopes->minmax[c][1]) scopes->minmax[c][1] = rgba[c]; } } else { - rgb_to_ycc(rgb[0], rgb[1], rgb[2], &ycc[0], &ycc[1], &ycc[2], ycc_mode); + rgb_to_ycc(rgba[0], rgba[1], rgba[2], &ycc[0], &ycc[1], &ycc[2], ycc_mode); for (c = 0; c < 3; c++) { ycc[c] *= INV_255; if (ycc[c] < scopes->minmax[c][0]) scopes->minmax[c][0] = ycc[c]; @@ -1066,16 +1068,17 @@ void scopes_update(Scopes *scopes, ImBuf *ibuf, int use_color_management) } } /* increment count for histo*/ - bin_r[get_bin_float(rgb[0])] += 1; - bin_g[get_bin_float(rgb[1])] += 1; - bin_b[get_bin_float(rgb[2])] += 1; bin_lum[get_bin_float(luma)] += 1; + bin_r[get_bin_float(rgba[0])] += 1; + bin_g[get_bin_float(rgba[1])] += 1; + bin_b[get_bin_float(rgba[2])] += 1; + bin_a[get_bin_float(rgba[3])] += 1; /* save sample if needed */ if (saveline) { const float fx = (float)x / (float)ibuf->x; const int idx = 2 * (ibuf->x * savedlines + x); - save_sample_line(scopes, idx, fx, rgb, ycc); + save_sample_line(scopes, idx, fx, rgba, ycc); } rf += ibuf->channels; @@ -1089,27 +1092,26 @@ void scopes_update(Scopes *scopes, ImBuf *ibuf, int use_color_management) n = 0; nl = 0; for (x = 0; x < 256; x++) { - if (bin_r[x] > n) - n = bin_r[x]; - if (bin_g[x] > n) - n = bin_g[x]; - if (bin_b[x] > n) - n = bin_b[x]; - if (bin_lum[x] > nl) - nl = bin_lum[x]; + if (bin_lum[x] > nl) nl = bin_lum[x]; + if (bin_r[x] > n) n = bin_r[x]; + if (bin_g[x] > n) n = bin_g[x]; + if (bin_b[x] > n) n = bin_b[x]; + if (bin_a[x] > n) n = bin_a[x]; } div = 1.0 / (double)n; divl = 1.0 / (double)nl; for (x = 0; x < 256; x++) { + scopes->hist.data_luma[x] = bin_lum[x] * divl; scopes->hist.data_r[x] = bin_r[x] * div; scopes->hist.data_g[x] = bin_g[x] * div; scopes->hist.data_b[x] = bin_b[x] * div; - scopes->hist.data_luma[x] = bin_lum[x] * divl; + scopes->hist.data_a[x] = bin_a[x] * div; } + MEM_freeN(bin_lum); MEM_freeN(bin_r); MEM_freeN(bin_g); MEM_freeN(bin_b); - MEM_freeN(bin_lum); + MEM_freeN(bin_a); scopes->ok = 1; } |