mirror of
https://github.com/game-stop/veejay.git
synced 2025-12-17 13:20:01 +01:00
113 lines
3.0 KiB
C
113 lines
3.0 KiB
C
/*
|
|
* Linux VeeJay
|
|
*
|
|
* Copyright(C)2002 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 "raster.h"
|
|
|
|
typedef struct {
|
|
int *xval;
|
|
} raster_t;
|
|
|
|
vj_effect *raster_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] = 4;
|
|
ve->limits[1][0] = h/4;
|
|
ve->limits[0][1] = 0;
|
|
ve->limits[1][1] = 1;
|
|
ve->defaults[0] = 4;
|
|
ve->defaults[1] = 1;
|
|
ve->description = "Grid";
|
|
ve->sub_format = 1;
|
|
ve->extra_frame = 0;
|
|
ve->has_user = 0;
|
|
ve->param_description = vje_build_param_list( ve->num_params, "Grid size", "Mode");
|
|
|
|
ve->hints = vje_init_value_hint_list( ve->num_params );
|
|
vje_build_value_hint_list( ve->hints, ve->limits[1][1], 1,"Black", "White" );
|
|
|
|
return ve;
|
|
}
|
|
|
|
void *raster_malloc (int w , int h)
|
|
{
|
|
raster_t *t = (raster_t*) vj_calloc(sizeof(raster_t));
|
|
if(!t) {
|
|
return NULL;
|
|
}
|
|
|
|
t->xval = vj_malloc(sizeof(int)*w);
|
|
if(!t->xval) {
|
|
free(t);
|
|
return NULL;
|
|
}
|
|
|
|
return (void*) t;
|
|
}
|
|
|
|
void raster_free(void *ptr)
|
|
{
|
|
raster_t *t = (raster_t*) ptr;
|
|
free(t->xval);
|
|
free(t);
|
|
}
|
|
|
|
void raster_apply(void *ptr, VJFrame *frame, int *args) {
|
|
int val = args[0];
|
|
int mode = args[1];
|
|
|
|
int x,y, yval;
|
|
uint8_t *Y = frame->data[0];
|
|
uint8_t *Cb= frame->data[1];
|
|
uint8_t *Cr= frame->data[2];
|
|
const unsigned int width = frame->width;
|
|
const unsigned int height = frame->height;
|
|
|
|
raster_t *t = (raster_t*) ptr;
|
|
int *xval = t->xval;
|
|
|
|
if(val == 0 )
|
|
return;
|
|
|
|
for(x=0; x < width; x++)
|
|
{
|
|
xval[x] = x%val;
|
|
}
|
|
|
|
uint8_t pixel_color = mode ? pixel_Y_hi_ : pixel_Y_lo_;
|
|
|
|
for(y=0; y < height; y++)
|
|
{
|
|
yval = y%val;
|
|
for(x=0; x < width; x++)
|
|
{
|
|
Y[y*width+x] = ((xval[x]>1)? ((yval>1) ? Y[y*width+x]: pixel_color):pixel_color);
|
|
Cb[y*width+x] = ((xval[x]>1)? ((yval>1) ? Cb[y*width+x]:128):128);
|
|
Cr[y*width+x] = ((xval[x]>1)? ((yval>1) ? Cr[y*width+x]:128):128);
|
|
}
|
|
}
|
|
}
|