mirror of
https://github.com/game-stop/veejay.git
synced 2025-12-17 13:20:01 +01:00
245 lines
6.6 KiB
C
245 lines
6.6 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 "chromascratcher.h"
|
|
#include "chromamagick.h"
|
|
|
|
typedef struct {
|
|
uint8_t *cframe[4];
|
|
int cnframe;
|
|
int cnreverse;
|
|
int chroma_restart;
|
|
VJFrame _tmp;
|
|
} chromascratcher_t;
|
|
|
|
vj_effect *chromascratcher_init(int w, int h)
|
|
{
|
|
vj_effect *ve = (vj_effect *) vj_calloc(sizeof(vj_effect));
|
|
ve->num_params = 4;
|
|
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] = (MAX_SCRATCH_FRAMES-1); /* uses the chromamagick effect for scratchign */
|
|
ve->limits[0][1] = 0;
|
|
ve->limits[1][1] = 255;
|
|
ve->limits[0][2] = 0;
|
|
ve->limits[1][2] = 29;
|
|
ve->limits[0][3] = 0;
|
|
ve->limits[1][3] = 1;
|
|
|
|
ve->defaults[0] = 1;
|
|
ve->defaults[1] = 150;
|
|
ve->defaults[2] = 8;
|
|
ve->defaults[3] = 1;
|
|
ve->description = "Matte Scratcher";
|
|
ve->sub_format = 1;
|
|
ve->extra_frame = 0;
|
|
ve->has_user =0;
|
|
ve->param_description = vje_build_param_list(ve->num_params, "Length", "Value", "Mode", "Pingpong" );
|
|
|
|
ve->hints = vje_init_value_hint_list( ve->num_params );
|
|
|
|
vje_build_value_hint_list( ve->hints, ve->limits[1][2],2,
|
|
"Appearing", "Dissapearing","Appearing suppressed", "Dissappearing suppressed",
|
|
"Add Subselect Luma", "Select Min", "Select Max", "Select Difference",
|
|
"Select Difference Negate", "Add Luma", "Select Unfreeze", "Exclusive",
|
|
"Difference Negate", "Additive", "Basecolor", "Freeze", "Unfreeze",
|
|
"Hardlight", "Multiply", "Divide", "Subtract", "Add", "Screen",
|
|
"Difference", "Softlight", "Dodge", "Reflect", "Difference Replace",
|
|
"Darken", "Lighten", "Modulo Add"
|
|
);
|
|
|
|
return ve;
|
|
}
|
|
|
|
void *chromascratcher_malloc(int w, int h)
|
|
{
|
|
chromascratcher_t *c = (chromascratcher_t*) vj_calloc(sizeof(chromascratcher_t));
|
|
if(!c) {
|
|
return NULL;
|
|
}
|
|
|
|
c->cframe[0] = (uint8_t *) vj_malloc( RUP8(w * h * 3) * MAX_SCRATCH_FRAMES * sizeof(uint8_t) );
|
|
if(!c->cframe[0]) {
|
|
free(c);
|
|
return NULL;
|
|
}
|
|
|
|
c->cframe[1] = c->cframe[0] + ( w * h * MAX_SCRATCH_FRAMES );
|
|
c->cframe[2] = c->cframe[1] + ( w * h * MAX_SCRATCH_FRAMES );
|
|
|
|
|
|
int strides[4] = { w * h * MAX_SCRATCH_FRAMES, w * h * MAX_SCRATCH_FRAMES, w * h * MAX_SCRATCH_FRAMES, 0 };
|
|
|
|
vj_frame_clear( c->cframe, strides, 128 );
|
|
|
|
return (void*) c;
|
|
}
|
|
|
|
void chromascratcher_free(void *ptr) {
|
|
|
|
chromascratcher_t *c = (chromascratcher_t*) ptr;
|
|
free(c->cframe[0]);
|
|
free(c);
|
|
}
|
|
|
|
static void chromastore_frame(chromascratcher_t *c, VJFrame *src, int w, int h, int n, int no_reverse)
|
|
{
|
|
int strides[4] = { (w * h), (w*h), (w*h) , 0 };
|
|
int cnframe = c->cnframe;
|
|
uint8_t **cframe = c->cframe;
|
|
int cnreverse = c->cnreverse;
|
|
|
|
uint8_t *dest[4] = {
|
|
cframe[0] + (w*h*cnframe),
|
|
cframe[1] + (w*h*cnframe),
|
|
cframe[2] + (w*h*cnframe),
|
|
NULL };
|
|
|
|
if (!cnreverse) {
|
|
vj_frame_copy( src->data, dest, strides );
|
|
} else {
|
|
vj_frame_copy( dest, src->data, strides );
|
|
}
|
|
|
|
if (cnreverse)
|
|
cnframe--;
|
|
else
|
|
cnframe++;
|
|
|
|
if (cnframe >= n) {
|
|
if (no_reverse == 0) {
|
|
cnreverse = 1;
|
|
cnframe = n - 1;
|
|
if(cnframe < 0 )
|
|
cnframe = 0;
|
|
} else {
|
|
cnframe = 0;
|
|
}
|
|
}
|
|
|
|
if (cnframe == 0)
|
|
cnreverse = 0;
|
|
|
|
c->cnreverse = cnreverse;
|
|
c->cnframe = cnframe;
|
|
|
|
}
|
|
|
|
|
|
|
|
void chromascratcher_apply(void *ptr, VJFrame *frame, int *args) {
|
|
int mode = args[0];
|
|
int opacity = args[1];
|
|
int n = args[2];
|
|
int no_reverse = args[3];
|
|
|
|
chromascratcher_t *c = (chromascratcher_t*) ptr;
|
|
|
|
int cnframe = c->cnframe;
|
|
uint8_t **cframe = c->cframe;
|
|
int chroma_restart = c->chroma_restart;
|
|
|
|
unsigned int i;
|
|
const unsigned int width = frame->width;
|
|
const unsigned int height = frame->height;
|
|
const int len = frame->len;
|
|
const unsigned int op_a = (opacity > 255) ? 255 : opacity;
|
|
const unsigned int op_b = 255 - op_a;
|
|
const int offset = len * cnframe;
|
|
uint8_t *Y = frame->data[0];
|
|
uint8_t *Cb = frame->data[1];
|
|
uint8_t *Cr = frame->data[2];
|
|
VJFrame _tmp;
|
|
veejay_memcpy( &_tmp, frame, (sizeof(VJFrame)));
|
|
_tmp.data[0] = cframe[0];
|
|
_tmp.data[1] = cframe[1];
|
|
_tmp.data[2] = cframe[2];
|
|
|
|
if(no_reverse != chroma_restart)
|
|
{
|
|
chroma_restart = no_reverse;
|
|
cnframe = n;
|
|
}
|
|
|
|
if( cnframe == 0 ) {
|
|
_tmp.data[0] = frame->data[0];
|
|
_tmp.data[1] = frame->data[1];
|
|
_tmp.data[2] = frame->data[2];
|
|
}
|
|
|
|
if(mode>3) {
|
|
int matte_mode = mode - 3;
|
|
int ch_args[2] = { matte_mode, opacity };
|
|
chromamagick_apply( NULL,frame,&_tmp,ch_args);
|
|
}
|
|
else {
|
|
switch (mode) { /* scratching with a sequence of frames (no scene changes) */
|
|
|
|
case 0:
|
|
/* moving parts will dissapear over time */
|
|
for (i = 0; i < len; i++) {
|
|
if (cframe[0][offset + i] < Y[i]) {
|
|
Y[i] = cframe[0][offset + i];
|
|
Cb[i] = cframe[1][offset + i];
|
|
Cr[i] = cframe[2][offset + i];
|
|
}
|
|
}
|
|
break;
|
|
case 1:
|
|
for (i = 0; i < len; i++) {
|
|
/* moving parts will remain visible */
|
|
if (cframe[0][offset + i] > Y[i]) {
|
|
Y[i] = cframe[0][offset + i];
|
|
Cb[i] = cframe[1][offset + i];
|
|
Cr[i] = cframe[2][offset + i];
|
|
}
|
|
}
|
|
break;
|
|
case 2:
|
|
for (i = 0; i < len; i++) {
|
|
if ((cframe[0][offset + i] * op_a) < (Y[i] * op_b)) {
|
|
Y[i] = cframe[0][offset + i];
|
|
Cb[i] = cframe[1][offset + i];
|
|
Cr[i] = cframe[2][offset + i];
|
|
}
|
|
}
|
|
break;
|
|
case 3:
|
|
for (i = 0; i < len; i++) {
|
|
/* moving parts will remain visible */
|
|
if ((cframe[0][offset + i] * op_a) > (Y[i] * op_b)) {
|
|
Y[i] = cframe[0][offset + i];
|
|
Cb[i] = cframe[1][offset + i];
|
|
Cr[i] = cframe[2][offset + i];
|
|
}
|
|
}
|
|
break;
|
|
|
|
}
|
|
}
|
|
|
|
chromastore_frame(c, frame, width, height, n, no_reverse);
|
|
c->chroma_restart = chroma_restart;
|
|
}
|