mirror of
https://github.com/game-stop/veejay.git
synced 2025-12-17 05:10:00 +01:00
154 lines
3.6 KiB
C
154 lines
3.6 KiB
C
/*
|
|
* Linux VeeJay
|
|
*
|
|
* Copyright(C)2006 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 "common.h"
|
|
#include <veejaycore/vjmem.h>
|
|
#include "softblur.h"
|
|
#include "threshold.h"
|
|
|
|
typedef int (*morph_func)(uint8_t *kernel, uint8_t mt[9] );
|
|
|
|
vj_effect *threshold_init(int w, int h)
|
|
{
|
|
vj_effect *ve = (vj_effect *) vj_calloc(sizeof(vj_effect));
|
|
ve->num_params = 2;
|
|
|
|
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; // threshold
|
|
ve->limits[1][0] = 255;
|
|
ve->limits[0][1] = 0; // reverse
|
|
ve->limits[1][1] = 1;
|
|
|
|
ve->defaults[0] = 40;
|
|
ve->defaults[1] = 0;
|
|
ve->description = "Map B from threshold mask";
|
|
ve->sub_format = 1;
|
|
ve->extra_frame = 1;
|
|
ve->has_user = 0;
|
|
ve->param_description = vje_build_param_list( ve->num_params, "Threshold", "Reverse" );
|
|
return ve;
|
|
}
|
|
|
|
typedef struct {
|
|
uint8_t *binary_img;
|
|
} threshold_t;
|
|
|
|
|
|
void *threshold_malloc(int w, int h )
|
|
{
|
|
threshold_t *t = (threshold_t*) vj_calloc( sizeof(threshold_t) );
|
|
if(!t) {
|
|
return NULL;
|
|
}
|
|
t->binary_img = (uint8_t*) vj_malloc(sizeof(uint8_t) * RUP8(w * h) );
|
|
if(!t->binary_img) {
|
|
free(t);
|
|
return NULL;
|
|
}
|
|
return (void*) t;
|
|
}
|
|
|
|
void threshold_free(void *ptr)
|
|
{
|
|
threshold_t *t = (threshold_t*) ptr;
|
|
free(t->binary_img);
|
|
free(t);
|
|
}
|
|
|
|
#ifndef MIN
|
|
#define MIN(a,b) ( (a)>(b) ? (b) : (a) )
|
|
#endif
|
|
#ifndef MAX
|
|
#define MAX(a,b) ( (a)>(b) ? (a) : (b) )
|
|
#endif
|
|
|
|
void threshold_apply( void *ptr, VJFrame *frame, VJFrame *frame2, int *args )
|
|
{
|
|
unsigned int y,x;
|
|
const unsigned int width = frame->width;
|
|
const unsigned int height = frame->height;
|
|
const int len = frame->len;
|
|
uint8_t *Y = frame->data[0];
|
|
uint8_t *Cb = frame->data[1];
|
|
uint8_t *Cr = frame->data[2];
|
|
uint8_t *Y2 = frame2->data[0];
|
|
uint8_t *Cb2=frame2->data[1];
|
|
uint8_t *Cr2=frame2->data[2];
|
|
|
|
int threshold = args[0];
|
|
int reverse = args[1];
|
|
|
|
threshold_t *t = (threshold_t*) ptr;
|
|
|
|
uint8_t *binary_img = t->binary_img;
|
|
|
|
softblur_apply_internal( frame, 0);
|
|
|
|
binarify_1src( binary_img,Y,threshold,0, width,height);
|
|
|
|
// len -= width;
|
|
|
|
if(!reverse)
|
|
{
|
|
for(y = 0; y < len; y += width )
|
|
{
|
|
for(x = 0; x < width; x ++)
|
|
{
|
|
if(binary_img[x+y]) //@ found white pixel
|
|
{
|
|
Y[x+y] = Y2[x+y];
|
|
Cb[x+y] = Cb2[x+y];
|
|
Cr[x+y] = Cr2[x+y];
|
|
|
|
}
|
|
else //@ black
|
|
{
|
|
Y[x + y] = 0;
|
|
Cb[x + y] = 128;
|
|
Cr[x + y] = 128;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for(y = 0; y < len; y += width )
|
|
{
|
|
for(x = 0; x < width; x ++)
|
|
{
|
|
if(binary_img[x+y] == 0x0) //@ found black pixel
|
|
{
|
|
Y[x+y] = Y2[x+y];
|
|
Cb[x+y]= Cb2[x+y];
|
|
Cr[x+y]= Cr2[x+y];
|
|
}
|
|
else
|
|
{
|
|
Y[x+y] = 0x0;
|
|
Cb[x+y] = 128;
|
|
Cr[x+y] = 128;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|