diff options
author | Juha Vehviläinen <jusu@users.sourceforge.net> | 2002-07-09 12:36:46 +0000 |
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committer | Juha Vehviläinen <jusu@users.sourceforge.net> | 2002-07-09 12:36:46 +0000 |
commit | f8d8ce4d35bfbba5391af2a3fbce2ad88f94dd69 (patch) | |
tree | 8306320e4e2c602d8c64590bb5eeed180d249a2b /Plugins/rene.c | |
parent | 311e440f30c218015d17fb390f50829f430d5128 (diff) |
PeRColate
svn path=/trunk/Framestein/; revision=31
Diffstat (limited to 'Plugins/rene.c')
-rw-r--r-- | Plugins/rene.c | 245 |
1 files changed, 245 insertions, 0 deletions
diff --git a/Plugins/rene.c b/Plugins/rene.c new file mode 100644 index 0000000..d8e6082 --- /dev/null +++ b/Plugins/rene.c @@ -0,0 +1,245 @@ +// 242.rene -- does 3-source chroma keying with transparency. +// by r. luke dubois (luke@music.columbia.edu), +// computer music center, columbia university, 2001. +// for rene beekman. +// +// 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: rene <red> <green> <blue> <fuzzi red> <fuzzi green> <fuzzi blue> <redfloor> <greenfloor> <bluefloor> +// +// f1 is the key & target, f2 is the mask +// + +#include <stdio.h> +#include <string.h> +#include "plugin.h" + +void perform_effect(struct frame f, struct args a) +{ + printf("Using keyscreen as effect does nothing!\n"); +} + +void perform_copy(struct frame f1, struct frame f2, struct args a) +{ + short x, y, w, h; + pixel16 *pix1_16, *pix2_16; + pixel24 *pix1_24, *pix2_24; + pixel32 *pix1_32, *pix2_32; + byte redpix, greenpix, bluepix, rkeyed, gkeyed, bkeyed; + byte red, green, blue, check, rf, gf, bf, rfl, gfl, bfl; + float lum, keylum, lowfuzz, highfuzz, lowfloor, highfloor, coeff; + char *t; + + w = f1.width<f2.width ? f1.width : f2.width; + h = f1.height<f2.height ? f1.height : f2.height; + + // get 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); + if(!(t = strstr(t+1, " "))) return; + rfl = atoi(t+1); + if(!(t = strstr(t+1, " "))) return; + gfl = atoi(t+1); + if(!(t = strstr(t+1, " "))) return; + bfl = atoi(t+1); + + printf("rene: r%d g%d b%d rg%d gf%d bf%d rfl%d gfl%d bfl%d\n", + red, green, blue, rf, gf, bf, rfl, gfl, bfl); + + // key all channels simultaneously + switch(f1.pixelformat) + { + case 16: + for(y = 0; y < h; y++) + { + pix1_16 = scanline16(f1, y); + pix2_16 = scanline16(f2, y); + for(x = 0; x < w; x++) + { + check = 0; // start with each pixel anew + + redpix = r16(pix2_16[x]); + greenpix = g16(pix2_16[x]); + bluepix = b16(pix2_16[x]); + if ((redpix>=(red-rf))&&(redpix<=(red+rf))&&(greenpix>=(green-gf))&&(greenpix<=(green+gf))&&(bluepix>=(blue-bf))&&(bluepix<=(blue+bf))) + { + check = 1; // mask it + } + if ((redpix<(red-rfl))||(redpix>(red+rfl))&&(greenpix<(green-gfl))||(greenpix>(green+gfl))&&(bluepix<(blue-bfl))||(bluepix>(blue+bfl))) + { + check = 2; // target it + } + + if (!check) + { + lum = (redpix + greenpix + bluepix) / 3.0; + keylum = (red + blue + green) / 3.0; + lowfuzz = (rf + gf + bf) / 3.0; + if (lowfuzz < 0.0) lowfuzz = 0.0; + highfuzz = (rf + gf + bf) / 3.0; + if (highfuzz > 1.0) highfuzz = 1.0; + lowfloor = keylum - ((rfl + gfl + bfl) / 3.0); + if (lowfloor < 0.0) lowfloor = 0.; + highfloor = keylum + (rfl + gfl + bfl) / 3.0; + if (highfloor > 1.0) highfloor = 1.0; + if (lum < keylum) + { + coeff = ((lum - lowfloor) / (keylum - lowfuzz)); + } + if (lum >= keylum) + { + coeff = ((255 - lum - highfloor) / (255 - keylum - highfuzz)); + } + + rkeyed = ((float)r16(pix2_16[x]) * coeff) + ((float)r16(pix1_16[x]) * (1.0 - coeff)); + gkeyed = ((float)g16(pix2_16[x]) * coeff) + ((float)g16(pix1_16[x]) * (1.0 - coeff)); + bkeyed = ((float)b16(pix2_16[x]) * coeff) + ((float)b16(pix1_16[x]) * (1.0 - coeff)); + + pix2_16[x] = rgbtocolor16(rkeyed, gkeyed, bkeyed); + } + + if (check==1) + { // was pix3 + // pix2_16[x] = rgbtocolor16(r16(pix2_16[x]), g16(pix2_16[x]), b16(pix2_16[x])); + } + if (check==2) + { // was pix2 + pix2_16[x] = rgbtocolor16(r16(pix1_16[x]), g16(pix1_16[x]), b16(pix1_16[x])); + } + } + } + break; + case 24: + for(y = 0; y < h; y++) + { + pix1_24 = scanline24(f1, y); + pix2_24 = scanline24(f2, y); + for(x = 0; x < w; x++) + { + check = 0; // start with each pixel anew + + redpix = r24(pix2_24[x]); + greenpix = g24(pix2_24[x]); + bluepix = b24(pix2_24[x]); + if ((redpix>=(red-rf))&&(redpix<=(red+rf))&&(greenpix>=(green-gf))&&(greenpix<=(green+gf))&&(bluepix>=(blue-bf))&&(bluepix<=(blue+bf))) + { + check = 1; // mask it + } + if ((redpix<(red-rfl))||(redpix>(red+rfl))&&(greenpix<(green-gfl))||(greenpix>(green+gfl))&&(bluepix<(blue-bfl))||(bluepix>(blue+bfl))) + { + check = 2; // target it + } + + if (!check) + { + lum = (redpix + greenpix + bluepix) / 3.0; + keylum = (red + blue + green) / 3.0; + lowfuzz = (rf + gf + bf) / 3.0; + if (lowfuzz < 0.0) lowfuzz = 0.0; + highfuzz = (rf + gf + bf) / 3.0; + if (highfuzz > 1.0) highfuzz = 1.0; + lowfloor = keylum - ((rfl + gfl + bfl) / 3.0); + if (lowfloor < 0.0) lowfloor = 0.; + highfloor = keylum + (rfl + gfl + bfl) / 3.0; + if (highfloor > 1.0) highfloor = 1.0; + if (lum < keylum) + { + coeff = ((lum - lowfloor) / (keylum - lowfuzz)); + } + if (lum >= keylum) + { + coeff = ((255 - lum - highfloor) / (255 - keylum - highfuzz)); + } + + rkeyed = ((float)r24(pix2_24[x]) * coeff) + ((float)r24(pix1_24[x]) * (1.0 - coeff)); + gkeyed = ((float)g24(pix2_24[x]) * coeff) + ((float)g24(pix1_24[x]) * (1.0 - coeff)); + bkeyed = ((float)b24(pix2_24[x]) * coeff) + ((float)b24(pix1_24[x]) * (1.0 - coeff)); + + pix2_24[x] = rgbtocolor24(rkeyed, gkeyed, bkeyed); + } + + if (check==1) + { // was pix3 + // pix2_24[x] = rgbtocolor24(r24(pix2_24[x]), g24(pix2_24[x]), b24(pix2_24[x])); + } + if (check==2) + { // was pix2 + pix2_24[x] = rgbtocolor24(r24(pix1_24[x]), g24(pix1_24[x]), b24(pix1_24[x])); + } + } + } + break; + case 32: + for(y = 0; y < h; y++) + { + pix1_32 = scanline32(f1, y); + pix2_32 = scanline32(f2, y); + for(x = 0; x < w; x++) + { + check = 0; // start with each pixel anew + + redpix = r32(pix2_32[x]); + greenpix = g32(pix2_32[x]); + bluepix = b32(pix2_32[x]); + if ((redpix>=(red-rf))&&(redpix<=(red+rf))&&(greenpix>=(green-gf))&&(greenpix<=(green+gf))&&(bluepix>=(blue-bf))&&(bluepix<=(blue+bf))) + { + check = 1; // mask it + } + if ((redpix<(red-rfl))||(redpix>(red+rfl))&&(greenpix<(green-gfl))||(greenpix>(green+gfl))&&(bluepix<(blue-bfl))||(bluepix>(blue+bfl))) + { + check = 2; // target it + } + + if (!check) + { + lum = (redpix + greenpix + bluepix) / 3.0; + keylum = (red + blue + green) / 3.0; + lowfuzz = (rf + gf + bf) / 3.0; + if (lowfuzz < 0.0) lowfuzz = 0.0; + highfuzz = (rf + gf + bf) / 3.0; + if (highfuzz > 1.0) highfuzz = 1.0; + lowfloor = keylum - ((rfl + gfl + bfl) / 3.0); + if (lowfloor < 0.0) lowfloor = 0.; + highfloor = keylum + (rfl + gfl + bfl) / 3.0; + if (highfloor > 1.0) highfloor = 1.0; + if (lum < keylum) + { + coeff = ((lum - lowfloor) / (keylum - lowfuzz)); + } + if (lum >= keylum) + { + coeff = ((255 - lum - highfloor) / (255 - keylum - highfuzz)); + } + + rkeyed = ((float)r32(pix2_32[x]) * coeff) + ((float)r32(pix1_32[x]) * (1.0 - coeff)); + gkeyed = ((float)g32(pix2_32[x]) * coeff) + ((float)g32(pix1_32[x]) * (1.0 - coeff)); + bkeyed = ((float)b32(pix2_32[x]) * coeff) + ((float)b32(pix1_32[x]) * (1.0 - coeff)); + + pix2_32[x] = rgbtocolor32(rkeyed, gkeyed, bkeyed); + } + + if (check==1) + { // was pix3 + // pix2_32[x] = rgbtocolor32(r32(pix2_32[x]), g32(pix2_32[x]), b32(pix2_32[x])); + } + if (check==2) + { // was pix2 + pix2_32[x] = rgbtocolor32(r32(pix1_32[x]), g32(pix1_32[x]), b32(pix1_32[x])); + } + } + } + break; + } +} |