diff options
Diffstat (limited to 'release/plugins/sequence/gamma.c')
| -rw-r--r-- | release/plugins/sequence/gamma.c | 183 |
1 files changed, 0 insertions, 183 deletions
diff --git a/release/plugins/sequence/gamma.c b/release/plugins/sequence/gamma.c deleted file mode 100644 index db04902413d..00000000000 --- a/release/plugins/sequence/gamma.c +++ /dev/null @@ -1,183 +0,0 @@ -/* - * Gamma Correction Plugin (RGB Version) 0.01 - * - * Copyright (c) 2005 Peter Schlaile - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - */ - -#include <math.h> -#include "plugin.h" -#include "util.h" -#include <stdio.h> - -#define alpha_epsilon 0.0001f -char name[]= "Gamma Correction"; - -VarStruct varstr[]= { - { NUMSLI|FLO, "St M:", 0.0, -1.0, 1.0, "Setup Main"}, - { NUMSLI|FLO, "Gn M:", 1.0, 0.0, 10.0,"Gain Main"}, - { NUMSLI|FLO, "Ga M:", 1.0, 0.0, 10.0, "Gamma Main"}, - - { NUMSLI|FLO, "St R:", 0.0, -1.0, 1.0, "Setup Red"}, - { NUMSLI|FLO, "Gn R:", 1.0, 0.0, 10.0,"Gain Red"}, - { NUMSLI|FLO, "Ga R:", 1.0, 0.0, 10.0, "Gamma Red"}, - - { NUMSLI|FLO, "St G:", 0.0, -1.0, 1.0, "Setup Green"}, - { NUMSLI|FLO, "Gn G:", 1.0, 0.0, 10.0,"Gain Green"}, - { NUMSLI|FLO, "Ga G:", 1.0, 0.0, 10.0, "Gamma Green"}, - - { NUMSLI|FLO, "St B:", 0.0, -1.0, 1.0, "Setup Blue"}, - { NUMSLI|FLO, "Gn B:", 1.0, 0.0, 10.0,"Gain Blue"}, - { NUMSLI|FLO, "Ga B:", 1.0, 0.0, 10.0, "Gamma Blue"}, -}; - -typedef struct Cast { - float setup_m; - float gain_m; - float gamma_m; - - float setup_r; - float gain_r; - float gamma_r; - - float setup_g; - float gain_g; - float gamma_g; - - float setup_b; - float gain_b; - float gamma_b; -} Cast; - -float cfra; - -void plugin_seq_doit(Cast *, float, float, int, int, ImBuf *, ImBuf *, ImBuf *, ImBuf *); - -int plugin_seq_getversion(void) { return B_PLUGIN_VERSION; } -void plugin_but_changed(int but) {} -void plugin_init() {} - -void plugin_getinfo(PluginInfo *info) -{ - info->name= name; - info->nvars= sizeof(varstr)/sizeof(VarStruct); - info->cfra= &cfra; - - info->varstr= varstr; - - info->init= plugin_init; - info->seq_doit= (SeqDoit) plugin_seq_doit; - info->callback= plugin_but_changed; -} - -static void make_gamma_table(float setup, float gain, float gamma, - unsigned char * table) -{ - int y; - - for (y = 0; y < 256; y++) { - float v = 1.0 * y / 255; - v += setup; - v *= gain; - v = pow(v, gamma); - if ( v > 1.0) { - v = 1.0; - } else if (v < 0.0) { - v = 0.0; - } - table[y] = v * 255; - } - -} - - -void plugin_seq_doit(Cast *cast, float facf0, float facf1, int width, - int height, ImBuf *ibuf1, ImBuf *ibuf2, ImBuf *out, ImBuf *use) { - if (!out->rect_float) - { - unsigned char *dest, *src1, *src2; - int x, y, c; - unsigned char gamma_table_m[256]; - unsigned char gamma_table_r[256]; - unsigned char gamma_table_g[256]; - unsigned char gamma_table_b[256]; - - if (!ibuf1) return; - - dest= (unsigned char *) out->rect; - src1= (unsigned char *) ibuf1->rect; - - make_gamma_table(cast->setup_m, cast->gain_m, cast->gamma_m, - gamma_table_m); - make_gamma_table(cast->setup_r, cast->gain_r, cast->gamma_r, - gamma_table_r); - make_gamma_table(cast->setup_g, cast->gain_g, cast->gamma_g, - gamma_table_g); - make_gamma_table(cast->setup_b, cast->gain_b, cast->gamma_b, - gamma_table_b); - - for (y = 0; y < height; y++) { - for (x = 0; x < width; x++) { - *dest++ = gamma_table_r[gamma_table_m[*src1++]]; - *dest++ = gamma_table_g[gamma_table_m[*src1++]]; - *dest++ = gamma_table_b[gamma_table_m[*src1++]]; - dest++; src1++; - } - } - } - else - { - float *i=ibuf1->rect_float; - float *o=out->rect_float; - unsigned int size=width*height; - unsigned int k; - float val_r[3]={cast->setup_r,cast->gain_r,cast->gamma_r}; - float val_g[3]={cast->setup_g,cast->gain_g,cast->gamma_g}; - float val_b[3]={cast->setup_b,cast->gain_b,cast->gamma_b}; - float *vals[3]={val_r,val_g,val_b}; - for (k=0;k<size;++k) - { - if (cast->gamma_m!=1.f || cast->setup_m!=0.f || cast->gain_m!=1.f) - { - float alpha=CLAMP(i[3],0.f,1.f); - if (alpha>alpha_epsilon) { - int l; - for (l=0;l<3;++l) - { - float *val=vals[l]; - o[l]=i[l]/alpha; - o[l]=pow((o[l]+cast->setup_m)*cast->gain_m,cast->gamma_m); - if (val[2]!=1.f || val[0]!=0.f || val[1]!=1.f) - { - o[l]=pow((o[l]+val[0])*val[1],val[2]); - } - o[l]*=alpha; - o[l]=CLAMP(o[l],0.f,1.f); - } - } else { - o[0]=o[1]=o[2]=0.0; - } - o[3]=1.0; - } - else - { - int l; - for (l=0;l<3;++l) - o[l]=CLAMP(i[l],0.f,1.f); - o[3]=1.0; - } - i += 4; - o += 4; - } - } -} |