mirror of
https://github.com/game-stop/veejay.git
synced 2025-12-16 12:50:00 +01:00
108 lines
2.6 KiB
C
108 lines
2.6 KiB
C
/*
|
|
* Linux VeeJay
|
|
*
|
|
* Copyright(C)2004 Niels Elburg <nwelburg@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 <config.h>
|
|
#include <stdint.h>
|
|
#include <stdlib.h>
|
|
#include <libvjmem/vjmem.h>
|
|
#include "chromium.h"
|
|
#include "common.h"
|
|
|
|
|
|
vj_effect *chromium_init(int w, int h)
|
|
{
|
|
vj_effect *ve = (vj_effect *) vj_calloc(sizeof(vj_effect));
|
|
ve->num_params = 1;
|
|
|
|
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] = 3;
|
|
ve->defaults[0] = 0;
|
|
ve->description = "Chromium";
|
|
ve->parallel = 1;
|
|
ve->sub_format = -1;
|
|
ve->extra_frame = 0;
|
|
ve->has_user = 0;
|
|
ve->param_description = vje_build_param_list( ve->num_params, "Mode" );
|
|
|
|
ve->hints = vje_init_value_hint_list( ve->num_params );
|
|
|
|
vje_build_value_hint_list( ve->hints, ve->limits[1][0], 0,
|
|
"Chroma Blue", "Chroma Red", "Chroma Red and Blue", "Chroma Swap"
|
|
);
|
|
|
|
return ve;
|
|
}
|
|
|
|
void chromium_apply(VJFrame *frame, int width, int height, int m )
|
|
{
|
|
const int len = (frame->ssm ? frame->len : frame->uv_len);
|
|
uint8_t *Cb = frame->data[1];
|
|
uint8_t *Cr = frame->data[2];
|
|
|
|
unsigned int i;
|
|
double tmp;
|
|
switch(m)
|
|
{
|
|
case 0:
|
|
for( i = 0; i < len ; i++)
|
|
{
|
|
Cb[i] = 0xff - Cb[i];
|
|
}
|
|
break;
|
|
case 1:
|
|
for( i = 0; i < len ; i++ )
|
|
{
|
|
Cr[i] = 0xff - Cr[i];
|
|
}
|
|
break;
|
|
case 2:
|
|
for( i = 0; i < len; i++)
|
|
{
|
|
Cb[i] = 0xff - Cb[i];
|
|
Cr[i] = 0xff - Cr[i];
|
|
}
|
|
break;
|
|
case 3:
|
|
// swap cb/cr
|
|
for (i = 0; i < len ; i ++ )
|
|
{
|
|
tmp = Cb[i];
|
|
Cb[i] = Cr[i];
|
|
Cr[i] = tmp;
|
|
}
|
|
break;
|
|
/*
|
|
case 4:
|
|
// U - blue - Y , V = Red - Y
|
|
// U = 0.492 * ( B - Y )
|
|
for( i = 0; i < len; i++)
|
|
{
|
|
tmp = 0.492 * (VJ_EFFECT_CB_YELLOW - yuv[0][i * 2]);
|
|
t = 128 + (uint8_t) tmp;
|
|
Cb[i] = t;
|
|
}
|
|
break;
|
|
*/
|
|
}
|
|
|
|
}
|