mirror of
https://github.com/game-stop/veejay.git
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120 lines
3.0 KiB
C
120 lines
3.0 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 "common.h"
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#include <veejaycore/vjmem.h>
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#include "overclock.h"
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vj_effect *overclock_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] = 2;
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ve->limits[1][0] = (h/8);
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ve->limits[0][1] = 1;
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ve->limits[1][1] = 90;
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ve->defaults[0] = 5;
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ve->defaults[1] = 2;
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ve->description = "Radial cubics";
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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->param_description = vje_build_param_list(ve->num_params, "Radius", "Value");
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return ve;
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}
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typedef struct {
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uint8_t *oc_buf[3];
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} overclock_t;
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void *overclock_malloc(int w, int h)
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{
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overclock_t *o = (overclock_t*) vj_calloc(sizeof(overclock_t));
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if(!o) {
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return NULL;
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}
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const int len = w* h;
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o->oc_buf[0] = (uint8_t*) vj_calloc(sizeof(uint8_t) * len );
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if(!o->oc_buf[0]) {
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free(o);
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return NULL;
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}
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return (void*) o;
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}
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void overclock_free(void *ptr)
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{
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overclock_t *o = (overclock_t*) ptr;
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free(o->oc_buf[0]);
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free(o);
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}
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void overclock_apply(void *ptr, VJFrame *frame, int *args ) {
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int n = args[0];
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int radius = args[1];
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const unsigned int width = frame->width;
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const unsigned int height = frame->height;
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int x,y,dx,dy;
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uint8_t t = 0;
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int s = 0;
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int i = 0;
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int N = ((n==0?1:n) * 2);
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uint8_t *Y = frame->data[0];
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overclock_t *o = (overclock_t*) ptr;
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uint8_t **oc_buf = o->oc_buf;
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for ( y = 0 ; y < height ; y ++)
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{
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blur2( oc_buf[0] + (y*width),Y + (y*width) ,width, radius,1,1,1);
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}
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for( y = N ; y < (height-N); y += (1+rand()%N) )
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{
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int r = 1 + rand() % N;
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for( x = 0; x < width; x+= r )
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{
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s = 0;
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for(dy = 0; dy < N; dy++ )
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{
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for(dx = 0; dx < N; dx ++ )
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{
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s += oc_buf[0][(y+dy)*width+x+dx];
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}
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}
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t = (uint8_t) (s / (N*N));
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for(dy = 0; dy < N; dy++ )
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{
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for(dx = 0; dx < N; dx ++ )
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{
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i = (y+dy)*width+x+dx;
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Y[i] = ( oc_buf[0][i] > Y[i] ? ((Y[i]+t)>>1) : t );
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}
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}
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}
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}
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}
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