mirror of
https://github.com/game-stop/veejay.git
synced 2025-12-17 13:20:01 +01:00
112 lines
2.9 KiB
C
112 lines
2.9 KiB
C
/*
|
|
* Linux VeeJay
|
|
*
|
|
* Copyright(C)2015 Niels Elburg <nwewlburg@gmail.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version 2
|
|
* of the License , or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307 , USA.
|
|
*/
|
|
|
|
#include "common.h"
|
|
#include <veejaycore/vjmem.h>
|
|
#include "mixtoalpha.h"
|
|
|
|
vj_effect *mixtoalpha_init(int w, int h)
|
|
{
|
|
vj_effect *ve = (vj_effect *) vj_calloc(sizeof(vj_effect));
|
|
ve->num_params = 2;
|
|
ve->description = "Alpha: Set from Mixing source";
|
|
ve->sub_format = -1;
|
|
ve->extra_frame = 1;
|
|
ve->parallel = 1;
|
|
ve->has_user = 0;
|
|
|
|
ve->defaults = (int *) vj_calloc(sizeof(int) * ve->num_params); /* default values */
|
|
ve->limits[0] = (int *) vj_calloc(sizeof(int) * ve->num_params); /* min */
|
|
ve->limits[1] = (int *) vj_calloc(sizeof(int) * ve->num_params); /* max */
|
|
ve->limits[0][0] = 0;
|
|
ve->limits[1][0] = 1;
|
|
ve->limits[0][1] = 0;
|
|
ve->limits[1][1] =1;
|
|
ve->defaults[0] = 0;
|
|
ve->defaults[1] = !yuv_use_auto_ccir_jpeg();
|
|
ve->param_description = vje_build_param_list( ve->num_params, "Mode", "Scale to full range" );
|
|
|
|
ve->alpha = FLAG_ALPHA_OUT;
|
|
|
|
ve->hints = vje_init_value_hint_list( ve->num_params );
|
|
|
|
vje_build_value_hint_list( ve->hints, ve->limits[1][0],0, "Copy Luminance from B", "Copy Alpha from B" );
|
|
|
|
return ve;
|
|
}
|
|
|
|
typedef struct {
|
|
uint8_t *lookup_table;
|
|
} mixtoalpha_t;
|
|
|
|
void *mixtoalpha_malloc(int w, int h)
|
|
{
|
|
mixtoalpha_t *m = (mixtoalpha_t*) vj_calloc(sizeof(mixtoalpha_t));
|
|
if(!m) {
|
|
return NULL;
|
|
}
|
|
|
|
m->lookup_table = (uint8_t*) vj_malloc(sizeof(uint8_t) * 256 );
|
|
if(!m->lookup_table) {
|
|
free(m);
|
|
return NULL;
|
|
}
|
|
|
|
__init_lookup_table( m->lookup_table, 256, 16.0f,235.0f, 0, 255 );
|
|
|
|
return (void*) m;
|
|
}
|
|
|
|
void mixtoalpha_free(void *ptr) {
|
|
mixtoalpha_t *m = (mixtoalpha_t*) ptr;
|
|
free(m->lookup_table);
|
|
free(m);
|
|
}
|
|
|
|
|
|
void mixtoalpha_apply( void *ptr, VJFrame *frame, VJFrame *frame2, int *args ) {
|
|
int mode = args[0];
|
|
int scale = args[1];
|
|
|
|
const int len = frame->len;
|
|
uint8_t *a = frame->data[3];
|
|
const uint8_t *Y = frame2->data[0];
|
|
|
|
mixtoalpha_t *m = (mixtoalpha_t*) ptr;
|
|
|
|
const uint8_t *T = (const uint8_t*) m->lookup_table;
|
|
|
|
if( mode == 0 ) {
|
|
veejay_memcpy(a, Y, len );
|
|
}
|
|
else if (mode == 1) {
|
|
veejay_memcpy(a, frame2->data[3], len );
|
|
}
|
|
|
|
if( scale ) {
|
|
int i;
|
|
for( i = 0; i < len; i ++ )
|
|
{
|
|
a[i] = T[ a[i] ];
|
|
}
|
|
}
|
|
}
|
|
|