mirror of
https://github.com/game-stop/veejay.git
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96 lines
2.9 KiB
C
96 lines
2.9 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 "scratcher.h"
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#include "common.h"
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#include "magicoverlays.h"
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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_malloc(sizeof(vj_effect));
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ve->num_params = 2;
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ve->defaults = (int *) vj_malloc(sizeof(int) * ve->num_params); /* default values */
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ve->limits[0] = (int *) vj_malloc(sizeof(int) * ve->num_params); /* min */
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ve->limits[1] = (int *) vj_malloc(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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return ve;
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}
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// FIXME private
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void mtracer_free() {
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if(mtrace_buffer[0]) free(mtrace_buffer[0]);
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if(mtrace_buffer[1]) free(mtrace_buffer[1]);
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if(mtrace_buffer[2]) free(mtrace_buffer[2]);
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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(w * h * sizeof(uint8_t));
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if(!mtrace_buffer[0]) return 0;
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mtrace_buffer[1] = (uint8_t *) vj_malloc(w * h * sizeof(uint8_t));
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if(!mtrace_buffer[1]) return 0;
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mtrace_buffer[2] = (uint8_t *) vj_malloc(w * h * sizeof(uint8_t));
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if(!mtrace_buffer[2]) return 0;
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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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unsigned int len = frame->len;
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unsigned int uv_len = frame->uv_len;
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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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if (mtrace_counter == 0) {
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overlaymagic_apply(frame, frame2, width, height, mode);
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veejay_memcpy(mtrace_buffer[0], Y, len);
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veejay_memcpy(mtrace_buffer[1], Cb, uv_len);
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veejay_memcpy(mtrace_buffer[2], Cr, uv_len);
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} else {
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overlaymagic_apply(frame, frame2, width, height, mode);
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veejay_memcpy(mtrace_buffer[0], Y, len);
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veejay_memcpy(mtrace_buffer[1], Cb, uv_len);
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veejay_memcpy(mtrace_buffer[2], Cr, uv_len);
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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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