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add edgeglow fx

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veejay
2023-10-27 23:56:55 +02:00
parent 7155092066
commit f71404be94
5 changed files with 218 additions and 2 deletions
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1
veejay-current/veejay-server/libvje/Makefile.am
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@@ -213,6 +213,7 @@ libvje_la_SOURCES = libvje.c vjert.c \
effects/glitch.c \
effects/sobel.c \
effects/colortap.c \
effects/edgeglow.c \
effects/blackreplace.c

185
veejay-current/veejay-server/libvje/effects/edgeglow.c Normal file
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@@ -0,0 +1,185 @@
/*
* Linux VeeJay
*
* Copyright(C)2023 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.
*/
/*
* Edge flow, inspired by Salsaman's Edgeflow Frei0r plugin (salsaman@gmail.com)
*
*/
#include "common.h"
#include <veejaycore/vjmem.h>
#include "edgeglow.h"
vj_effect *edgeglow_init(int w, int h)
{
vj_effect *ve = (vj_effect *) vj_calloc(sizeof(vj_effect));
ve->num_params = 5;
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] = 255;
ve->defaults[0] = 15;
ve->limits[0][1] = 0;
ve->limits[1][1] = 255;
ve->defaults[1] = 255;
ve->limits[0][2] = 0;
ve->limits[1][2] = 255;
ve->defaults[2] = 255;
ve->limits[0][3] = 0;
ve->limits[1][3] = 255;
ve->defaults[3] = 0;
ve->limits[0][4] = 1;
ve->limits[1][4] = 100;
ve->defaults[4] = 20;
ve->description = "Edge Glow";
ve->sub_format = 1;
ve->rgb_conv = 1;
ve->extra_frame = 0;
ve->parallel = 0;
ve->has_user = 0;
ve->param_description = vje_build_param_list( ve->num_params, "Threshold", "Red", "Green" , "Blue", "Scaling Factor" );
return ve;
}
typedef struct
{
uint8_t *buf;
uint8_t *blurmask;
} edgeglow_t;
void *edgeglow_malloc(int w, int h) {
edgeglow_t *s = (edgeglow_t*) vj_malloc(sizeof(edgeglow_t));
if(!s) return NULL;
s->buf = (uint8_t*) vj_malloc(sizeof(uint8_t) * w * h * 2 );
if(!s->buf) {
free(s);
return NULL;
}
s->blurmask = s->buf + (w*h);
return (void*) s;
}
void edgeglow_free(void *ptr) {
edgeglow_t *s = (edgeglow_t*) ptr;
free(s->buf);
free(s);
}
void edgeglow_apply( void *ptr, VJFrame *frame, int *args ) {
edgeglow_t *s = (edgeglow_t*) ptr;
const int t = args[0];
const int threshold = (args[0] * args[0]);
const int red = args[1];
const int green = args[2];
const int blue = args[3];
const float scalingFactor = (args[4] * 0.1f);
const int len = frame->len;
const int width = frame->width;
const int height = frame->height;
uint8_t *restrict Y = frame->data[0];
uint8_t *restrict Cb = frame->data[1];
uint8_t *restrict Cr = frame->data[2];
uint8_t *restrict B = s->buf;
uint8_t *restrict C = s->blurmask;
int nY=0,nU=128,nV=128;
_rgb2yuv( red,green,blue, nY, nU, nV );
int L2 = (nY * 100) >> 8;
int a2 = (((nU - 128) * 127) >> 8);
int b2 = (((nV - 128) * 127) >> 8);
for( int y = 0; y < 1; y ++ ) {
for( int x = 0; x < width; x ++ )
B[y*width+x] = 0;
}
for( int y = (height-1); y < height; y ++ ) {
for( int x = 0; x < width; x ++ ) {
B[y*width+x] = 0;
}
}
// edge detect
for (int y = 1; y < height - 1; ++y) {
B[ y * width ] = 0;
#pragma omp simd
for (int x = 1; x < width - 1; ++x) {
const int index = y * width + x;
const int gx = Y[index - width - 1] - Y[index - width + 1] + 2 * (Y[index - 1] - Y[index + 1]) + Y[index + width - 1] - Y[index + width + 1];
const int gy = Y[index - width - 1] + 2 * Y[index - width] + Y[index - width + 1] - Y[index + width - 1] - 2 * Y[index + width] - Y[index + width + 1];
const int abs_gx = (gx ^ (gx >> 31)) - (gx >> 31);
const int abs_gy = (gy ^ (gy >> 31)) - (gy >> 31);
const int gradientMagnitude = abs_gx + abs_gy;
const int normMagnitude = (int) (((float) gradientMagnitude / 1020) * 255.0);
B[index] = (normMagnitude > t) ? gradientMagnitude : 0;
}
B[ y * width + width ] = 0;
}
// blur edge mask
for (int y = 1; y < height - 1; ++y) {
#pragma omp simd
for (int x = 1; x < width - 1; ++x) {
const int index = y * width + x;
const int blurredValue = (B[index - width - 1] + B[index - width] + B[index - width + 1] +
B[index - 1] + B[index] + B[index + 1] +
B[index + width - 1] + B[index + width] + B[index + width + 1]) / 9;
C[index] = blurredValue;
}
}
for( int i = 0; i < len; i ++ ) {
const int edgeIntensity = (int) ((float) C[i] * scalingFactor );
if( edgeIntensity > 0 ) {
int L1 = (Y[i] * 100) >> 8;
int a1 = (((Cb[i] - 128) * 127) >> 8);
int b1 = (((Cr[i] - 128) * 127) >> 8);
L1 = L1 + ((L2 - L1) * edgeIntensity) / 255;
a1 = a1 + ((a2 - a1) * edgeIntensity) / 255;
b1 = b1 + ((b2 - b1) * edgeIntensity) / 255;
Y[i] = CLAMP_Y( (L1 * 255) / 100 );
Cb[i] = CLAMP_UV( a1 + 128 );
Cr[i] = CLAMP_UV( b1 + 128 );
}
}
}

27
veejay-current/veejay-server/libvje/effects/edgeglow.h Normal file
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@@ -0,0 +1,27 @@
/*
* Linux VeeJay
*
* Copyright(C)2023 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 for 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.
*/
#ifndef EDGEGLOW_H
#define EDGEGLOW_H
vj_effect *edgeglow_init(int w, int h);
void *edgeglow_malloc(int w, int h);
void edgeglow_free(void *ptr);
void edgeglow_apply(void *ptr, VJFrame *frame, int *args);
#endif

6
veejay-current/veejay-server/libvje/internal.h
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@@ -224,8 +224,9 @@
#include "./effects/glitch.h"
#include "./effects/sobel.h"
#include "./effects/colortap.h"
#include "./effects/edgeglow.h"
#define VJ_IMAGE_EFFECT_MIN 64
#define VJ_IMAGE_EFFECT_MIN 63
#define VJ_IMAGE_EFFECT_MAX 199
#define VJ_VIDEO_EFFECT_MIN 200
@@ -483,7 +484,8 @@ enum {
VJ_IMAGE_EFFECT_GLITCH = 66,
VJ_IMAGE_EFFECT_SOBEL = 65,
VJ_IMAGE_EFFECT_COLORTAP = 64,
VJ_IMAGE_EFFECT_DUMMY=0,
VJ_IMAGE_EFFECT_EDGEGLOW = 63,
VJ_IMAGE_EFFECT_DUMMY=0,
};

1
veejay-current/veejay-server/libvje/libvje.c
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@@ -139,6 +139,7 @@ static struct {
{ negation_init,NULL,NULL,NULL,NULL,negation_apply,NULL,NULL,NULL,NULL,VJ_IMAGE_EFFECT_NEGATION },
{ glitch_init,glitch_malloc,glitch_free,NULL,NULL,glitch_apply,NULL,NULL,NULL,NULL,VJ_IMAGE_EFFECT_GLITCH },
{ sobel_init, sobel_malloc,sobel_free,NULL,NULL,sobel_apply,NULL,NULL,NULL,NULL,VJ_IMAGE_EFFECT_SOBEL },
{ edgeglow_init,edgeglow_malloc,edgeglow_free,NULL,NULL, edgeglow_apply,NULL,NULL,NULL,NULL,VJ_IMAGE_EFFECT_EDGEGLOW },
{ colortap_init,colortap_malloc,colortap_free,NULL,NULL,colortap_apply,NULL,NULL,NULL,NULL,VJ_IMAGE_EFFECT_COLORTAP },
{ colortemp_init,NULL,NULL,NULL,NULL,colortemp_apply,NULL,NULL,NULL,NULL,VJ_IMAGE_EFFECT_COLORTEMP },
{ cosmichue_init,NULL,NULL,NULL,NULL,cosmichue_apply,NULL,NULL,NULL,NULL,VJ_IMAGE_EFFECT_COSMICHUE },