mirror of
https://github.com/game-stop/veejay.git
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92 lines
2.5 KiB
C
92 lines
2.5 KiB
C
/*
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* Linux VeeJay
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*
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* Copyright(C)2004 Niels Elburg <nwelburg@gmail.com>
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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 <stdint.h>
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#include <stdio.h>
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#include <libvjmem/vjmem.h>
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#include "cartonize.h"
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vj_effect *cartonize_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] = 1;
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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] = 64;
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ve->defaults[1] = 0;
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ve->defaults[2] = 0;
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ve->description = "Cartoon";
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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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ve->parallel = 1;
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ve->param_description = vje_build_param_list( ve->num_params, "Damp Y", "Damp U", "Damp V" );
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return ve;
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}
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void cartonize_apply( VJFrame *frame, int width, int height, int b1, int b2, int b3)
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{
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unsigned int i;
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int len = (width * height);
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int uv_len = (frame->ssm ? frame->len : frame->uv_len);
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uint8_t tmp;
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int p;
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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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const int base = (const int) b1;
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int ubase= (const int) b2 - 128;
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int vbase= (const int) b3 - 128;
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// ubase/vbase cannot be 0
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if(ubase==0) ubase=1;
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if(vbase==0) vbase=1;
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for( i = 0 ; i < len ; i ++ )
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{
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tmp = Y[i];
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Y[i] = (tmp / base) * base; // loose fractional part
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}
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if(b2 > 0)
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for( i = 0; i < uv_len; i ++ )
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{
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p = Cb[i] - 128;
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Cb[i] = (p / ubase) * ubase + 128;
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}
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if(b3> 0 )
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for( i = 0; i < uv_len; i ++ )
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{
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p = Cr[i] - 128;
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Cr[i] = (p / vbase) * vbase + 128;
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}
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}
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