mirror of
https://github.com/game-stop/veejay.git
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103 lines
3.2 KiB
C
103 lines
3.2 KiB
C
/*
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* Linux VeeJay
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*
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* Copyright(C)2002 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 <stdlib.h>
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#include <stdint.h>
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#include <libvjmem/vjmem.h>
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#include "scratcher.h"
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#include "common.h"
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#include "magicoverlays.h"
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static uint8_t *mtrace_buffer[3];
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static int mtrace_counter = 0;
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vj_effect *mtracer_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 = 2;
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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] = 30;
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ve->limits[0][1] = 1;
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ve->limits[1][1] = 25;
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ve->defaults[0] = 150;
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ve->defaults[1] = 8;
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ve->description = "Magic Tracer";
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ve->sub_format = 0;
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ve->extra_frame = 1;
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ve->has_user = 0;
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ve->param_description = vje_build_param_list( ve->num_params, "Mode", "Length");
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return ve;
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}
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// FIXME private
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void mtracer_free() {
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int i;
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for(i = 0; i < 3; i ++ ) {
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if( mtrace_buffer[i] )
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free(mtrace_buffer[i]);
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mtrace_buffer[i] = NULL;
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}
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}
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int mtracer_malloc(int w, int h)
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{
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mtrace_buffer[0] = (uint8_t*) vj_malloc( sizeof(uint8_t) * RUP8(w*h));
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mtrace_buffer[1] = (uint8_t*) vj_malloc( sizeof(uint8_t) * RUP8(w*h));
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mtrace_buffer[2] = (uint8_t*) vj_malloc( sizeof(uint8_t) * RUP8(w*h));
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vj_frame_clear1( mtrace_buffer[0], pixel_Y_lo_, RUP8(w*h) );
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vj_frame_clear1( mtrace_buffer[1], 128, RUP8(w*h));
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vj_frame_clear1( mtrace_buffer[2], 128, RUP8(w*h));
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return 1;
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}
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void mtracer_apply( VJFrame *frame, VJFrame *frame2,
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int width, int height, int mode, int n)
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{
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VJFrame m;
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unsigned int len = frame->len;
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unsigned int uv_len = frame->uv_len;
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int strides[4] = { len, uv_len, uv_len, 0 };
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memcpy( &m, frame, sizeof(VJFrame ));
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if (mtrace_counter == 0) {
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overlaymagic_apply(frame, frame2, width, height, mode,0);
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vj_frame_copy1( mtrace_buffer[0], frame->data[0], len );
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vj_frame_copy1( mtrace_buffer[1], frame->data[1], uv_len );
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vj_frame_copy1( mtrace_buffer[2], frame->data[2], uv_len );
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} else {
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overlaymagic_apply(frame, frame2, width, height, mode,0);
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m.data[0] = mtrace_buffer[0];
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m.data[1] = mtrace_buffer[1];
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m.data[2] = mtrace_buffer[2];
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overlaymagic_apply( &m, frame2, width,height, mode, 0 );
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vj_frame_copy( mtrace_buffer,frame->data, strides );
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}
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mtrace_counter++;
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if (mtrace_counter >= n)
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mtrace_counter = 0;
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}
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