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Diffstat (limited to 'Plugins/rgbseek.c')
| -rw-r--r-- | Plugins/rgbseek.c | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/Plugins/rgbseek.c b/Plugins/rgbseek.c new file mode 100644 index 0000000..cf53aa5 --- /dev/null +++ b/Plugins/rgbseek.c @@ -0,0 +1,97 @@ +// 242.rgbseek -- does binary color recognition on an input image. +// by r. luke dubois (luke@music.columbia.edu), +// computer music center, columbia university, 2001. +// +// Pd / Framestein port by Olaf Matthes <olaf.matthes@gmx.de>, June 2002 +// +// objects and source are provided without warranty of any kind, express or implied. +// +// usage: rgbseek <red> <green> <blue> <fuzzi red> <fuzzi green> <fuzzi blue> +// +// return: 1 if color exists in frame, 0 if not +// + +#include <stdio.h> +#include <string.h> +#include "plugin.h" + +void perform_effect(struct frame f, struct args a) +{ + int x,y; + byte red = 0, green = 0, blue = 0, check = 0, rf = 0, gf = 0, bf = 0; + byte bits = f.pixelformat/8; + byte redpix, greenpix, bluepix; // the color values + pixel16 c16; + pixel24 c24; + pixel32 c32; + char *ret_check; // returns the result + char *t; + + // get r g b and fuzzi params + if(!a.s) return; + red = atoi(a.s); + if(!(t = strstr(a.s, " "))) return; + green = atoi(t+1); + if(!(t = strstr(t+1, " "))) return; + blue = atoi(t+1); + if(!(t = strstr(t+1, " "))) return; + rf = atoi(t+1); + if(!(t = strstr(t+1, " "))) return; + gf = atoi(t+1); + if(!(t = strstr(t+1, " "))) return; + bf = atoi(t+1); + + printf("rgbseek: %d %d %d\n", red, green, blue); + + // get returnvaluereceivenames + if(!(t = strstr(t+1, " "))) return; + ret_check = t+1; + t[0]=0; + + for(y = 0; y < f.height; y++) + { + for(x = 0; x < f.width; x++) + { + switch (f.pixelformat) + { + case 16: + c16 = scanline16(f, y)[x]; + redpix = r16(c16); + greenpix = g16(c16); + bluepix = b16(c16); + break; + case 24: + c24 = scanline24(f, y)[x]; + redpix = r24(c24); + greenpix = g24(c24); + bluepix = b24(c24); + break; + case 32: + c32 = scanline32(f, y)[x]; + redpix = r32(c32); + greenpix = g32(c32); + bluepix = b32(c32); + break; + } + if ((redpix>=(red-rf))&&(redpix<=(red+rf))&&(greenpix>=(green-gf))&&(greenpix<=(green+gf))&&(bluepix>=(blue-bf))&&(bluepix<=(blue+bf))) + { + check = 1; // found the color, let's get outta here + goto done; + } + } + } + check = 0; // didn't find the color + +done: + // return-values: + // + // framestein will send data given in the form "pd_receiver_name=value" + // back to pd. + + sprintf(a.ret, "%s=%d", ret_check, check); +} + +void perform_copy(struct frame f1, struct frame f2, struct args a) +{ + printf("Using rgbseek as copy operation does nothing!\n"); +} |