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fix slicer

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This commit is contained in:
niels
2015-04-18 23:14:07 +02:00
parent 726b7e1995
commit e87b4af9f6
1 changed files with 32 additions and 26 deletions
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56
veejay-current/veejay-server/libvje/effects/slicer.c
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@@ -23,25 +23,24 @@
#include <config.h>
#include <stdlib.h>
#include <libvjmem/vjmem.h>
#include "common.h"
#include "slicer.h"
static int *slice_xshift;
static int *slice_yshift;
static int *slice_xshift = NULL;
static int *slice_yshift = NULL;
static void recalc(int w, int h , uint8_t *Yin, int v1, int v2 )
static void recalc(int w, int h , uint8_t *Yinp, int v1, int v2 )
{
unsigned int x,y,dx,dy,r,p;
unsigned int l = w * h;
unsigned int valx = (w / 100.0) * v1;
unsigned int valy = (h / 100.0) * v1;
int x,y,dx,dy,r,p;
int l = w * h;
int valx = v1;//(w / 100.0) * v1;
int valy = v2;//(h / 100.0) * v1;
for(x = dx = 0; x < w; x++)
{
p = 0 + (int)( l * (rand()/RAND_MAX + 0.0) );
if(dx==0)
{
r = ((Yin[p] & valx))-((valx>>1)+1);
dx = 8 + ( (Yin[p] & ((valx>>1))-1) );
uint8_t *Yin = Yinp + (x * h);
r = ((rand() & valx))-((valx>>1)+1);
dx = 8 + ( (Yin[x] & ((valx>>1))-1) );
}
else
{
@@ -52,12 +51,11 @@ static void recalc(int w, int h , uint8_t *Yin, int v1, int v2 )
for(y=dy=0; y < h; y++)
{
p = 0 + (int)( l * rand()/RAND_MAX + 0.0 );
if(dy==0)
{
r = (Yin[p] & valy)-((valy>>1)+1);
dy = ( 8 + Yin[p] & ((valy>>1)-1) );
uint8_t *Yin = Yinp + (y * w);
r = (rand() & valy)-((valy>>1)+1);
dy = ( 8 + Yin[x] & ((valy>>1)-1) );
}
else
{
@@ -86,10 +84,10 @@ vj_effect *slicer_init(int w, int h)
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] = 2;
ve->limits[1][0] = 100;
ve->limits[0][1] = 2;
ve->limits[1][1] = 100;
ve->limits[0][0] = 1;
ve->limits[1][0] = w;
ve->limits[0][1] = 1;
ve->limits[1][1] = h;
ve->defaults[0] = 16;
ve->defaults[1] = 16;
ve->description = "Slicer";
@@ -104,7 +102,7 @@ vj_effect *slicer_init(int w, int h)
void slicer_apply( VJFrame *frame, VJFrame *frame2, int width,
int height, int val1, int val2)
{
unsigned int x,y,p;
int x,y,p,q;
const unsigned int len = (width * height);
uint8_t *Y = frame->data[0];
uint8_t *Cb= frame->data[1];
@@ -112,7 +110,10 @@ void slicer_apply( VJFrame *frame, VJFrame *frame2, int width,
uint8_t *Y2= frame2->data[0];
uint8_t *Cb2=frame2->data[1];
uint8_t *Cr2=frame2->data[2];
unsigned int dx,dy;
int dx,dy;
srand( val1 * val2 );
recalc( width, height, Y2, val1 ,val2 );
for(y=0; y < height; y++){
@@ -120,10 +121,15 @@ void slicer_apply( VJFrame *frame, VJFrame *frame2, int width,
dx = x + slice_xshift[y];
dy = y + slice_yshift[x];
p = dy * width + dx;
q = y * width + x;
if( p >= 0 && p < len ) {
Y[(y*width)+x] = Y2[p];
Cb[(y*width)+x] = Cb2[p];
Cr[(y*width)+x] = Cr2[p];
Y[q] = Y2[p];
Cb[q] = Cb2[p];
Cr[q] = Cr2[p];
} else {
Y[q] = pixel_Y_lo_;
Cb[q] = 128;
Cr[q] = 128;
}
}
}