mirror of
https://github.com/game-stop/veejay.git
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112 lines
3.5 KiB
C
112 lines
3.5 KiB
C
/*
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* Linux VeeJay
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*
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* Copyright(C)2002 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 "common.h"
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#include <veejaycore/vjmem.h>
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#include "mtracer.h"
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#include "magicoverlays.h"
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typedef struct {
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uint8_t *mtrace_buffer[4];
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int mtrace_counter;
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} m_tracer_t;
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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] = 32;
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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 = -1;
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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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ve->hints = vje_init_value_hint_list( ve->num_params );
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vje_build_value_hint_list( ve->hints, ve->limits[1][0], 0,
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"Additive", "Subtractive","Multiply","Divide","Lighten","Hardlight",
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"Difference","Difference Negate","Exclusive","Base","Freeze",
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"Unfreeze","Relative Add","Relative Subtract","Max select", "Min select",
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"Relative Luma Add", "Relative Luma Subtract", "Min Subselect", "Max Subselect",
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"Add Subselect", "Add Average", "Experimental 1","Experimental 2", "Experimental 3",
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"Multisub", "Softburn", "Inverse Burn", "Dodge", "Distorted Add", "Distorted Subtract", "Experimental 4", "Negation Divide");
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return ve;
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}
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void mtracer_free(void *ptr) {
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m_tracer_t *m = (m_tracer_t*) ptr;
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free(m->mtrace_buffer[0]);
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free(m);
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}
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void *mtracer_malloc(int w, int h)
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{
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m_tracer_t *m = (m_tracer_t*) vj_calloc(sizeof(m_tracer_t));
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if(!m) {
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return NULL;
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}
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size_t buflen = RUP8( (w*h+w)) * sizeof(uint8_t);
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m->mtrace_buffer[0] = (uint8_t*) vj_malloc( buflen );
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if(!m->mtrace_buffer[0]) {
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free(m);
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return NULL;
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}
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return (void*) m;
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}
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void mtracer_apply( void *ptr, VJFrame *frame, VJFrame *frame2, int *args ) {
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int mode = args[0];
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int n = args[1];
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m_tracer_t *m = (m_tracer_t*) ptr;
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const int len = frame->len;
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VJFrame mt;
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veejay_memcpy( &mt, frame, sizeof(VJFrame ));
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int om_args[2] = { mode, 0 };
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if (m->mtrace_counter == 0) {
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overlaymagic_apply(NULL, frame, frame2, om_args);
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vj_frame_copy1( m->mtrace_buffer[0], frame->data[0], len );
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} else {
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overlaymagic_apply(NULL, frame, frame2, om_args);
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mt.data[0] = m->mtrace_buffer[0];
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mt.data[1] = frame->data[1];
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mt.data[2] = frame->data[2];
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mt.data[3] = frame->data[3];
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overlaymagic_apply(NULL, &mt, frame2, om_args );
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vj_frame_copy1( m->mtrace_buffer[0],frame->data[0], len );
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}
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m->mtrace_counter = (m->mtrace_counter % n);
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}
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