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Diffstat (limited to 'Plugins/eclipse02.c')
-rw-r--r-- | Plugins/eclipse02.c | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/Plugins/eclipse02.c b/Plugins/eclipse02.c new file mode 100644 index 0000000..d1d5301 --- /dev/null +++ b/Plugins/eclipse02.c @@ -0,0 +1,178 @@ +// 242.eclipse02 -- does meta-imaging on two input images. +// by r. luke dubois (luke@music.columbia.edu), +// computer music center, columbia university, 2001. +// grid quantization algorithm massively improved by jeremy bernstein, bootsquadresearch. +// +// 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: eclipse02 <red> <green> <blue> <rows> <columns> +// + +#include <stdio.h> +#include <string.h> +#include "plugin.h" + +// the process image routines work like this: +// +// two pointers (src and src2) access the pixels in the input image +// src controls the output of the smaller grids, src2 controls the tinting from +// the upper-left corner of the point in the image that the grid is supposed to represent. +// +// the grid dimensions are computed by the size of the input image and are used to define +// the size of each pixel in the grid (which is why some row and columns combinations +// leave orphaned pixels on the edges). +// the loop goes like this: +// +// do each row { +// do each column { +// get the 'tint pixel' for that frame; +// +// do the height within each meta-frame { +// do the width within each meta-frame { +// output the pixels for each frame, tinting it; +// } +// } +// } +// } +// +// + +void perform_effect(struct frame f, struct args a) // color tints color +{ + printf("Using eclipse02 as effect does nothing!\n"); +} + +void perform_copy(struct frame f1, struct frame f2, struct args a) +{ + short i, i1, j, j1, r, c, src1[2], w, h; + short rows, columns, rowstep, colstep, rowoffset, coloffset; + byte red, green, blue, check, r1, g1, b1; + byte bits = f1.pixelformat/8; + byte redpix, greenpix, bluepix; // the color values + pixel16 *pix2_16, *pix1_16; + pixel24 *pix2_24, *pix1_24; + pixel32 *pix2_32, *pix1_32; + char *t; + + w = f1.width<f2.width ? f1.width : f2.width; + h = f1.height<f2.height ? f1.height : f2.height; + + // get r g b and fuzzy 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; + rows = atoi(t+1); + if(!(t = strstr(t+1, " "))) return; + columns = atoi(t+1); + + + rowstep = (h / rows) + .5; + colstep = (w / columns) + .5; + // printf("red is %ld green is %ld blue is %ld", red, green, blue); + + if ( rows > (h * .1) ) + rowoffset = rows - (h * .1); + else + rowoffset = 1; + + if ( columns > (w * .1) ) + coloffset = columns - (w * .1); + else + coloffset = 1; + + + for(r = 0; r <= ( rows + rowoffset ); r++ ) + { + for(i = 0, i1 = ( r * rowstep ); i < h; i += rows, i1++) + { + for( c = 0; c <= columns + coloffset; c++ ) + { + switch(f1.pixelformat) + { + case 16: + src1[0] = c * colstep; + src1[1] = r * rowstep; + pix1_16 = scanline16(f1, src1[1]); + r1 = r16(pix1_16[src1[0]]); + g1 = g16(pix1_16[src1[0]]); + b1 = b16(pix1_16[src1[0]]); + + for(j = 0, j1 = c * colstep; j < w; j += columns, j1++) + { + if ( j1 >= w ) + goto dink; + + if ( i1 >= h ) + goto yoink; + + pix2_16 = scanline16(f2, i1); + redpix = r16(pix2_16[j1]) + r1 + red; + greenpix = g16(pix2_16[j1]) + g1 + green; + bluepix = b16(pix2_16[j1]) + b1 + blue; + + pix2_16[j1] = rgbtocolor16(redpix, greenpix, bluepix); + } + break; + case 24: + src1[0] = c * colstep; + src1[1] = r * rowstep; + pix1_24 = scanline24(f1, src1[1]); + r1 = r24(pix1_24[src1[0]]); + g1 = g24(pix1_24[src1[0]]); + b1 = b24(pix1_24[src1[0]]); + + for(j = 0, j1 = c * colstep; j < w; j += columns, j1++) + { + if ( j1 >= w ) + goto dink; + + if ( i1 >= h ) + goto yoink; + + pix2_24 = scanline24(f2, i1); + redpix = r24(pix2_24[j1]) + r1 + red; + greenpix = g24(pix2_24[j1]) + g1 + green; + bluepix = b24(pix2_24[j1]) + b1 + blue; + + pix2_24[j1] = rgbtocolor24(redpix, greenpix, bluepix); + } + break; + case 32: + src1[0] = c * colstep; + src1[1] = r * rowstep; + pix1_32 = scanline32(f1, src1[1]); + r1 = r32(pix1_32[src1[0]]); + g1 = g32(pix1_32[src1[0]]); + b1 = b32(pix1_32[src1[0]]); + + for(j = 0, j1 = c * colstep; j < w; j += columns, j1++) + { + if ( j1 >= w ) + goto dink; + + if ( i1 >= h ) + goto yoink; + + pix2_32 = scanline32(f2, i1); + redpix = r32(pix2_32[j1]) + r1 + red; + greenpix = g32(pix2_32[j1]) + g1 + green; + bluepix = b32(pix2_32[j1]) + b1 + blue; + + pix2_32[j1] = rgbtocolor32(redpix, greenpix, bluepix); + } + break; + } + } + dink: + ; + } + } + yoink: + ; +} |