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veejay/veejay-current/libvje/effects/magicoverlays.c
Niels Elburg 236cb75d95 safer and faster adding and removing of fx 
git-svn-id: svn://code.dyne.org/veejay/trunk@676 eb8d1916-c9e9-0310-b8de-cf0c9472ead5
2006-10-24 00:50:27 +00:00

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/*
* Linux VeeJay
*
* Copyright(C)2002 Niels Elburg <elburg@hio.hen.nl>
*
* 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 "magicoverlays.h"
#include <libvje/internal.h>
#include <stdlib.h>
#include "common.h"
vj_effect *overlaymagic_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->defaults[0] = 7;
ve->description = "Overlay Magic";
ve->limits[0][0] = 1;
ve->limits[1][0] = 32;
ve->extra_frame = 1;
ve->sub_format = 0;
ve->has_user = 0;
return ve;
}
/* rename methods in lumamagick and chromamagick */
void _overlaymagic_adddistorted(VJFrame *frame, VJFrame *frame2,
int width, int height)
{
unsigned int i;
unsigned int len = width * height;
int uv_len = frame->uv_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 a, b, c;
for (i = 0; i < len; i++) {
a = Y[i];
b = Y2[i];
c = a + b;
Y[i] = CLAMP_Y(c);
}
for (i = 0; i < uv_len; i++) {
a = Cb[i];
b = Cb2[i];
c = a + b;
Cb[i] = CLAMP_UV(c);
a = Cr[i];
b = Cr2[i];
c = a + b;
Cr[i] = CLAMP_UV(c);
}
}
void _overlaymagic_add_distorted(VJFrame *frame, VJFrame *frame2,
int width, int height)
{
unsigned int i;
uint8_t y1, y2, cb, cr;
unsigned int len = width * height;
int uv_len = frame->uv_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];
for (i = 0; i < len; i++) {
y1 = Y[i];
y2 = Y2[i];
Y[i] = y1 + y2;
}
for (i = 0; i < uv_len; i++) {
cb = Cb[i];
cr = Cb2[i];
Cb[i] = cb + cr;
cb = Cr[i];
cr = Cr2[i];
Cr[i] = cb + cr;
}
}
void _overlaymagic_subdistorted(VJFrame *frame, VJFrame *frame2,
int width, int height)
{
unsigned int i;
unsigned int len = width * height;
int uv_len = frame->uv_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];
uint8_t y1, y2, cb, cr;
for (i = 0; i < len; i++) {
y1 = Y[i];
y2 = Y2[i];
y1 -= y2;
Y[i] = y1;
}
for (i = 0; i < uv_len; i++) {
cb = Cb[i];
cr = Cb2[i];
cb -= cr;
Cb[i] = cb;
cb = Cr[i];
cr = Cr2[i];
cb -= cr;
Cr[i] = cb;
}
}
void _overlaymagic_sub_distorted(VJFrame *frame, VJFrame *frame2,
int width, int height)
{
unsigned int i ;
unsigned int len = width * height;
int uv_len = frame->uv_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];
uint8_t y1, y2, cb, cr;
for (i = 0; i < len; i++) {
y1 = Y[i];
y2 = Y2[i];
Y[i] = y1 - y2;
}
for (i = 0; i < uv_len; i++) {
cb = Cb[i];
cr = Cb2[i];
Cb[i] = cb - cr;
cb = Cr[i];
cr = Cr2[i];
Cr[i] = cb - cr;
}
}
void _overlaymagic_multiply(VJFrame *frame, VJFrame *frame2,
int width, int height)
{
unsigned int i;
unsigned int len = width * height;
uint8_t *Y = frame->data[0];
uint8_t *Y2 = frame2->data[0];
uint8_t y1, y2;
for (i = 0; i < len; i++) {
y1 = Y[i];
y2 = Y2[i];
y1 = (y1 * y2) >> 8;
Y[i] = y1;
}
}
void _overlaymagic_divide(VJFrame *frame, VJFrame *frame2, int width,
int height)
{
unsigned int i;
int a, b, c;
unsigned int len = width * height;
uint8_t *Y = frame->data[0];
uint8_t *Y2 = frame2->data[0];
for (i = 0; i < len; i++) {
b = Y[i] * Y[i];
c = 255 - Y2[i];
if (c == 0)
c = pixel_Y_lo_;
a = b / c;
Y[i] = a;
}
}
void _overlaymagic_additive(VJFrame *frame, VJFrame *frame2,
int width, int height)
{
unsigned int len = width * height;
uint8_t *Y = frame->data[0];
uint8_t *Y2 = frame2->data[0];
int a;
while(len--) {
a = Y[len] + (2 * Y2[len]) - 255;
Y[len] = CLAMP_Y(a);
}
}
void _overlaymagic_substractive(VJFrame *frame, VJFrame *frame2,
int width, int height)
{
unsigned int i;
int a;
unsigned int len = width * height;
uint8_t *Y = frame->data[0];
uint8_t *Y2 = frame2->data[0];
for (i = 0; i < len; i++) {
a = Y[i] + (Y2[i] - 255);
Y[i] = a;
}
}
void _overlaymagic_softburn(VJFrame *frame, VJFrame *frame2,
int width, int height)
{
unsigned int i;
unsigned int len = width * height;
uint8_t *Y = frame->data[0];
uint8_t *Y2 = frame2->data[0];
int a, b, c;
for (i = 0; i < len; i++) {
a = Y[i];
b = Y2[i];
if (a + b < pixel_Y_hi_) {
if (a == pixel_Y_hi_)
c = a;
else
c = (b >> 7) / (256 - a);
} else {
if (b < pixel_Y_lo_)
b = pixel_Y_lo_;
c = 255 - (((255 - a) >> 7) / b);
}
Y[i] = c;
}
}
void _overlaymagic_inverseburn(VJFrame *frame, VJFrame *frame2,
int width, int height)
{
unsigned int i;
unsigned int len = width * height;
uint8_t *Y = frame->data[0];
uint8_t *Y2 = frame2->data[0];
int a, b, c;
for (i = 0; i < len; i++) {
a = Y[i];
b = Y2[i];
if (a < pixel_Y_lo_)
c = pixel_Y_lo_;
else
c = 255 - (((255 - b) >> 8) / a);
Y[i] = CLAMP_Y(c);
}
}
void _overlaymagic_colordodge(VJFrame *frame, VJFrame *frame2,
int width, int height)
{
unsigned int i;
unsigned int len = width * height;
uint8_t *Y = frame->data[0];
uint8_t *Y2 = frame2->data[0];
int a, b, c;
for (i = 0; i < len; i++) {
a = Y[i];
b = Y2[i];
if (a >= pixel_Y_hi_)
c = pixel_Y_hi_;
else
c = (b >> 8) / (256 - a);
if (c > pixel_Y_hi_)
c = pixel_Y_hi_;
Y[i] = c;
}
}
void _overlaymagic_mulsub(VJFrame *frame, VJFrame *frame2, int width,
int height)
{
unsigned int i;
unsigned int len = width * height;
uint8_t *Y = frame->data[0];
uint8_t *Y2 = frame2->data[0];
int a, b, c;
for (i = 0; i < len; i++) {
a = Y[i];
b = 255 - Y2[i];
if (b < pixel_Y_lo_)
b = pixel_Y_lo_;
c = a / b;
Y[i] = c;
}
}
void _overlaymagic_lighten(VJFrame *frame, VJFrame *frame2, int width,
int height)
{
unsigned int i;
unsigned int len = width * height;
uint8_t *Y = frame->data[0];
uint8_t *Y2 = frame2->data[0];
int a, b, c;
for (i = 0; i < len; i++) {
a = Y[i];
b = Y2[i];
if (a > b)
c = a;
else
c = b;
Y[i] = c;
}
}
void _overlaymagic_difference(VJFrame *frame, VJFrame *frame2,
int width, int height)
{
unsigned int i;
unsigned int len = width * height;
uint8_t *Y = frame->data[0];
uint8_t *Y2 = frame2->data[0];
int a, b;
for (i = 0; i < len; i++) {
a = Y[i];
b = Y2[i];
Y[i] = abs(a - b);
}
}
void _overlaymagic_diffnegate(VJFrame *frame, VJFrame *frame2,
int width, int height)
{
unsigned int i;
unsigned int len = width * height;
int a, b;
uint8_t *Y = frame->data[0];
uint8_t *Y2 = frame2->data[0];
for (i = 0; i < len; i++) {
a = (255 - Y[i]);
b = Y2[i];
Y[i] = 255 - abs(a - b);
}
}
void _overlaymagic_exclusive(VJFrame *frame, VJFrame *frame2,
int width, int height)
{
unsigned int i;
unsigned int len = width * height;
int uv_len = frame->uv_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 a, b, c;
for (i = 0; i < len; i++) {
a = Y[i];
b = Y2[i];
c = a + b - ((a * b) >> 8);
Y[i] = c;
}
for( i=0; i < uv_len; i++) {
a = Cb[i]-128;
b = Cb2[i]-128;
c = a +b - (( a * b ) >> 8);
c += 128;
Cb[i] = CLAMP_UV(c);
a = Cr[i] - 128;
b = Cr2[i] - 128;
c = a + b - (( a * b) >> 8);
c += 128;
Cr[i] = CLAMP_UV(c);
}
}
void _overlaymagic_basecolor(VJFrame *frame, VJFrame *frame2,
int width, int height)
{
unsigned int i;
int a, b, c, d;
unsigned int len = width * height;
uint8_t *Y = frame->data[0];
uint8_t *Y2 = frame2->data[0];
for (i = 0; i < len; i++) {
a = Y[i];
b = Y2[i];
if (a < pixel_Y_lo_)
a = pixel_Y_lo_;
if (b < pixel_Y_lo_)
b = pixel_Y_lo_;
c = a * b >> 7;
d = c + a * ((255 - (((255 - a) * (255 - b)) >> 7) - c) >> 7); //8
Y[i] = d;
}
}
void _overlaymagic_freeze(VJFrame *frame, VJFrame *frame2, int width,
int height)
{
unsigned int i;
unsigned int len = width * height;
uint8_t *Y = frame->data[0];
uint8_t *Y2 = frame2->data[0];
int a, b, c;
for (i = 0; i < len; i++) {
a = Y[i];
b = Y2[i];
if (b < pixel_Y_lo_)
c = a;
else
c = 255 - ((256 - a) * (256 - a)) / b;
Y[i] = c;
}
}
void _overlaymagic_unfreeze(VJFrame *frame, VJFrame *frame2,
int width, int height)
{
unsigned int i;
unsigned int len = width * height;
uint8_t *Y = frame->data[0];
uint8_t *Y2 = frame2->data[0];
int a, b, c;
for (i = 0; i < len; i++) {
a = Y[i];
b = Y2[i];
if (a < pixel_Y_lo_)
c = pixel_Y_lo_;
else
c = 255 - ((255 - b) * (255 - b)) / a;
Y[i] = c;
}
}
void _overlaymagic_hardlight(VJFrame *frame, VJFrame *frame2,
int width, int height)
{
unsigned int i;
unsigned int len = width * height;
uint8_t *Y = frame->data[0];
uint8_t *Y2 = frame2->data[0];
int a, b, c;
for (i = 0; i < len; i++) {
a = Y[i];
b = Y2[i];
if (b < 128)
c = (a * b) >> 7;
else
c = 256 - ((256 - b) * (256 - a) >> 7);
Y[i] = c;
}
}
void _overlaymagic_relativeaddlum(VJFrame *frame, VJFrame *frame2,
int width, int height)
{
unsigned int i;
int a, b, c, d;
unsigned int len = width * height;
uint8_t *Y = frame->data[0];
uint8_t *Y2 = frame2->data[0];
for (i = 0; i < len; i++) {
a = Y[i];
c = a >> 1;
b = Y2[i];
d = b >> 1;
if ((c + d) < a)
c = a;
else
c += d;
Y[i] = c;
}
}
void _overlaymagic_relativesublum(VJFrame *frame, VJFrame *frame2,
int width, int height)
{
unsigned int i;
unsigned int len = width * height;
uint8_t *Y = frame->data[0];
uint8_t *Y2 = frame2->data[0];
int a, b;
for (i = 0; i < len; i++) {
a = Y[i];
b = Y2[i];
Y[i] = (a - b + 255) >> 1;
}
}
void _overlaymagic_relativeadd(VJFrame *frame, VJFrame *frame2,
int width, int height)
{
unsigned int i;
unsigned int len = width * height;
int uv_len = frame->uv_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 a, b, c, d;
for (i = 0; i < len; i++) {
a = Y[i];
c = a >> 1;
b = Y2[i];
d = b >> 1;
Y[i] = c + d;
}
for (i = 0; i < uv_len; i++) {
a = Cb[i];
c = a >> 1;
b = Cb2[i];
d = b >> 1;
Cb[i] = c + d;
a = Cr[i];
c = a >> 1;
b = Cr2[i];
d = b >> 1;
Cr[i] = c + d;
}
}
void _overlaymagic_relativesub(VJFrame *frame, VJFrame *frame2,
int width, int height)
{
unsigned int i;
unsigned int len = width * height;
int uv_len = frame->uv_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 a, b;
for (i = 0; i < len; i++) {
a = Y[i];
b = Y2[i];
Y[i] = (a - b + 255) >> 1;
}
for (i = 0; i < uv_len; i++) {
a = Cb[i];
b = Cb2[i];
Cb[i] = (a - b + 255) >> 1;
a = Cr[i];
b = Cr2[i];
Cr[i] = (a - b + 255) >> 1;
}
}
void _overlaymagic_minsubselect(VJFrame *frame, VJFrame *frame2,
int width, int height)
{
unsigned int i;
unsigned int len = width * height;
uint8_t *Y = frame->data[0];
uint8_t *Y2 = frame2->data[0];
int a, b;
for (i = 0; i < len; i++) {
a = Y[i];
b = Y2[i];
if (b < a)
Y[i] = (b - a + 255) >> 1;
else
Y[i] = (a - b + 255) >> 1;
}
}
void _overlaymagic_maxsubselect(VJFrame *frame, VJFrame *frame2,
int width, int height)
{
unsigned int i;
unsigned int len = width * height;
uint8_t *Y = frame->data[0];
uint8_t *Y2 = frame2->data[0];
int a, b;
for (i = 0; i < len; i++) {
a = Y[i];
b = Y2[i];
if (b > a)
Y[i] = (b - a + 255) >> 1;
else
Y[i] = (a - b + 255) >> 1;
}
}
void _overlaymagic_addsubselect(VJFrame *frame, VJFrame *frame2,
int width, int height)
{
unsigned int i;
unsigned int len = width * height;
uint8_t *Y = frame->data[0];
uint8_t *Y2 = frame2->data[0];
int c, a, b;
for (i = 0; i < len; i++) {
a = Y[i];
b = Y2[i];
if (b < a) {
c = (a + b) >> 1;
Y[i] = c;
}
}
}
void _overlaymagic_maxselect(VJFrame *frame, VJFrame *frame2,
int width, int height)
{
unsigned int i;
unsigned int len = width * height;
uint8_t *Y = frame->data[0];
uint8_t *Y2 = frame2->data[0];
int a, b;
for (i = 0; i < len; i++) {
a = Y[i];
b = Y2[i];
if (b > a)
Y[i] = b;
}
}
void _overlaymagic_minselect(VJFrame *frame, VJFrame *frame2,
int width, int height)
{
unsigned int i;
unsigned int len = width * height;
uint8_t *Y = frame->data[0];
uint8_t *Y2 = frame2->data[0];
int a, b;
for (i = 0; i < len; i++) {
a = Y[i];
b = Y2[i];
if (b < a)
Y[i] = b;
}
}
void _overlaymagic_addtest(VJFrame *frame, VJFrame *frame2, int width,
int height)
{
unsigned int i;
unsigned int len = width * height;
uint8_t *Y = frame->data[0];
uint8_t *Y2 = frame2->data[0];
int c, a, b;
for (i = 0; i < len; i++) {
a = Y[i];
b = Y2[i];
c = a + (2 * b) - 255;
Y[i] = c;
}
}
void _overlaymagic_addtest2(VJFrame *frame, VJFrame *frame2,
int width, int height)
{
unsigned int i;
unsigned int len = width * height;
int uv_len = frame->uv_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 c, a, b;
for (i = 0; i < len; i++) {
a = Y[i];
b = Y2[i];
c = a + (2 * b) - 255;
Y[i] = c;
}
for (i = 0; i < uv_len; i++) {
a = Cb[i];
b = Cb2[i];
c = a + (2 * b) - 255;
Cb[i] = c;
a = Cr[i];
b = Cr2[i];
c = a + (2 * b) - 255;
Cr[i] = c;
}
}
void _overlaymagic_addtest4(VJFrame *frame, VJFrame *frame2,
int width, int height)
{
unsigned int i;
unsigned int len = width * height;
uint8_t *Y = frame->data[0];
uint8_t *Y2 = frame2->data[0];
int c, a, b;
for (i = 0; i < len; i++) {
a = Y[i];
b = Y2[i];
b = b - 255;
if (a < pixel_Y_lo_)
a = pixel_Y_lo_;
if (b < pixel_Y_lo_)
b = Y2[i];
if (b < pixel_Y_lo_)
b = pixel_Y_lo_;
c = (a * a) / b;
Y[i] = c;
}
}
void _overlaymagic_try
(VJFrame *frame, VJFrame *frame2, int width, int height) {
unsigned int i;
unsigned int len = width * height;
int a, b, p, q;
uint8_t *Y = frame->data[0];
uint8_t *Y2 = frame2->data[0];
for (i = 0; i < len; i++) {
/* calc p */
a = Y[i];
b = Y[i];
if (b < pixel_Y_lo_)
p = pixel_Y_lo_;
else
p = 255 - ((256 - a) * (256 - a)) / b;
if (p < pixel_Y_lo_)
p = pixel_Y_lo_;
/* calc q */
a = Y2[i];
b = Y2[i];
if (b < pixel_Y_lo_)
q = pixel_Y_lo_;
else
q = 255 - ((256 - a) * (256 - a)) / b;
if (b < pixel_Y_lo_)
q = pixel_Y_lo_;
/* calc pixel */
if (q < pixel_Y_lo_)
q = pixel_Y_lo_;
else
q = 255 - ((256 - p) * (256 - a)) / q;
if (q < pixel_Y_lo_)
q = pixel_Y_lo_;
Y[i] = q;
}
}
void overlaymagic_apply(VJFrame *frame, VJFrame *frame2, int width,
int height, int n)
{
switch (n) {
case VJ_EFFECT_BLEND_ADDITIVE:
_overlaymagic_additive(frame, frame2, width, height);
break;
case VJ_EFFECT_BLEND_SUBSTRACTIVE:
_overlaymagic_substractive(frame, frame2, width, height);
break;
case VJ_EFFECT_BLEND_MULTIPLY:
_overlaymagic_multiply(frame, frame2, width, height);
break;
case VJ_EFFECT_BLEND_DIVIDE:
_overlaymagic_divide(frame, frame2, width, height);
break;
case VJ_EFFECT_BLEND_LIGHTEN:
_overlaymagic_lighten(frame, frame2, width, height);
break;
case VJ_EFFECT_BLEND_DIFFERENCE:
_overlaymagic_difference(frame, frame2, width, height);
break;
case VJ_EFFECT_BLEND_DIFFNEGATE:
_overlaymagic_diffnegate(frame, frame2, width, height);
break;
case VJ_EFFECT_BLEND_EXCLUSIVE:
_overlaymagic_exclusive(frame, frame2, width, height);
break;
case VJ_EFFECT_BLEND_BASECOLOR:
_overlaymagic_basecolor(frame, frame2, width, height);
break;
case VJ_EFFECT_BLEND_FREEZE:
_overlaymagic_freeze(frame, frame2, width, height);
break;
case VJ_EFFECT_BLEND_UNFREEZE:
_overlaymagic_unfreeze(frame, frame2, width, height);
break;
case VJ_EFFECT_BLEND_RELADD:
_overlaymagic_relativeadd(frame, frame2, width, height);
break;
case VJ_EFFECT_BLEND_RELSUB:
_overlaymagic_relativesub(frame, frame2, width, height);
break;
case VJ_EFFECT_BLEND_RELADDLUM:
_overlaymagic_relativeaddlum(frame, frame2, width, height);
break;
case VJ_EFFECT_BLEND_RELSUBLUM:
_overlaymagic_relativesublum(frame, frame2, width, height);
break;
case VJ_EFFECT_BLEND_MAXSEL:
_overlaymagic_maxselect(frame, frame2, width, height);
break;
case VJ_EFFECT_BLEND_MINSEL:
_overlaymagic_minselect(frame, frame2, width, height);
break;
case VJ_EFFECT_BLEND_MINSUBSEL:
_overlaymagic_minsubselect(frame, frame2, width, height);
break;
case VJ_EFFECT_BLEND_MAXSUBSEL:
_overlaymagic_maxsubselect(frame, frame2, width, height);
break;
case VJ_EFFECT_BLEND_ADDSUBSEL:
_overlaymagic_addsubselect(frame, frame2, width, height);
break;
case VJ_EFFECT_BLEND_ADDAVG:
_overlaymagic_add_distorted(frame, frame2, width, height);
break;
case VJ_EFFECT_BLEND_ADDTEST2:
_overlaymagic_addtest(frame, frame2, width, height);
break;
case VJ_EFFECT_BLEND_ADDTEST3:
_overlaymagic_addtest2(frame, frame2, width, height);
break;
case VJ_EFFECT_BLEND_ADDTEST4:
_overlaymagic_addtest4(frame, frame2, width, height);
break;
case VJ_EFFECT_BLEND_MULSUB:
_overlaymagic_mulsub(frame, frame2, width, height);
break;
case VJ_EFFECT_BLEND_SOFTBURN:
_overlaymagic_softburn(frame, frame2, width, height);
break;
case VJ_EFFECT_BLEND_INVERSEBURN:
_overlaymagic_inverseburn(frame, frame2, width, height);
break;
case VJ_EFFECT_BLEND_COLORDODGE:
_overlaymagic_colordodge(frame, frame2, width, height);
break;
case VJ_EFFECT_BLEND_ADDDISTORT:
_overlaymagic_adddistorted(frame, frame2, width, height);
break;
case VJ_EFFECT_BLEND_SUBDISTORT:
_overlaymagic_subdistorted(frame, frame2, width, height);
break;
case 32:
_overlaymagic_try(frame, frame2, width, height);
break;
}
}
void overlaymagic_free(){}
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