mirror of
https://github.com/game-stop/veejay.git
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86 lines
2.3 KiB
C
86 lines
2.3 KiB
C
/*
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* Linux VeeJay
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*
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* Copyright(C)2004 Niels Elburg <elburg@hio.hen.nl>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License , or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307 , USA.
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*/
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#include <config.h>
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#include "common.h"
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#include "colormap.h"
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#include <stdlib.h>
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vj_effect *colormap_init(int w, int h)
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{
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vj_effect *ve = (vj_effect *) vj_calloc(sizeof(vj_effect));
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ve->num_params = 3;
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ve->defaults = (int *) vj_calloc(sizeof(int) * ve->num_params); /* default values */
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ve->limits[0] = (int *) vj_calloc(sizeof(int) * ve->num_params); /* min */
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ve->limits[1] = (int *) vj_calloc(sizeof(int) * ve->num_params); /* max */
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ve->limits[0][0] = 0;
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ve->limits[1][0] = 255;
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ve->limits[0][1] = 0;
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ve->limits[1][1] = 255;
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ve->limits[0][2] = 0;
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ve->limits[1][2] = 255;
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ve->defaults[0] = 46;
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ve->defaults[1] = 109;
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ve->defaults[2] = 92;
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ve->description = "Color mapping";
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ve->sub_format = 1;
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ve->extra_frame = 0;
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ve->has_user = 0;
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return ve;
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}
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static uint8_t u_[256];
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static uint8_t v_[256];
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void colormap_apply( VJFrame *frame, int width, int height, int r, int g, int b)
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{
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unsigned int i;
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int len = (width * height);
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uint8_t *Y = frame->data[0];
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uint8_t *Cb = frame->data[1];
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uint8_t *Cr = frame->data[2];
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uint8_t dummy = 0;
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for(i = 1; i < 256; i ++ )
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{
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COLOR_rgb2yuv( (r % i),(g % i),(b % i), dummy, u_[i-1],v_[i-1]);
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}
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/* for (i = 0; i < len; i++) {
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*(Y) = val - *(Y);
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*(Y)++;
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}*/
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for (i = 0; i < len; i++) {
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// *(Cb) = val - *(Cb);
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// *(Cb)++;
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// *(Cr) = val - *(Cr);
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// *(Cr)++;
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*(Cb) = u_[ (*Y) ];
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*(Cr) = v_[ (*Y) ];
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*(Cb)++;
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*(Cr)++;
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*(Y)++;
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}
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}
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