mirror of
https://github.com/game-stop/veejay.git
synced 2025-12-18 13:49:58 +01:00
279 lines
6.3 KiB
C
279 lines
6.3 KiB
C
/*
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* Linux VeeJay
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* EffecTV - Realtime Digital Video Effector
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* Copyright (C) 2001-2006 FUKUCHI Kentaro
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*
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* ChameleonTV - Vanishing into the wall!!
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* Copyright (C) 2003 FUKUCHI Kentaro
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*
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* Ported to veejay by Niels Elburg
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License , or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307 , USA.
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*/
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#include <config.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <libvjmem/vjmem.h>
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#include "softblur.h"
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#include "chameleon.h"
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#include "common.h"
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vj_effect *chameleonblend_init(int w, int h)
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{
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vj_effect *ve = (vj_effect *) vj_calloc(sizeof(vj_effect));
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ve->num_params = 1;
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ve->defaults = (int *) vj_calloc(sizeof(int) * ve->num_params); /* default values */
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ve->limits[0] = (int *) vj_calloc(sizeof(int) * ve->num_params); /* min */
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ve->limits[1] = (int *) vj_calloc(sizeof(int) * ve->num_params); /* max */
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ve->limits[0][0] = 0;
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ve->limits[1][0] = 1;
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ve->defaults[0] = 0;
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ve->description = "Chameleon BlendTV";
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ve->sub_format = 1;
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ve->extra_frame = 1;
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ve->has_user = 0;
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ve->param_description = vje_build_param_list( ve->num_params, "Mode (Appear,Dissapear)" );
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return ve;
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}
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static int last_mode_ = -1;
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static int N__ = 0;
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static int n__ = 0;
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static int has_bg = 0;
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static int32_t *sum = NULL;
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static uint8_t *timebuffer = NULL;
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static uint8_t *tmpimage[4] = { NULL,NULL,NULL, NULL};
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static int plane = 0;
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static uint8_t *bgimage[4] = { NULL,NULL,NULL, NULL};
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#define PLANES_DEPTH 6
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#define PLANES (1<< PLANES_DEPTH)
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int chameleonblend_prepare( uint8_t *map[4], int width, int height )
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{
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if(!bgimage[0])
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return 0;
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int strides[4] = { width*height,width*height,width*height, 0 };
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vj_frame_copy( map, bgimage, strides );
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VJFrame tmp;
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veejay_memset( &tmp, 0, sizeof(VJFrame));
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tmp.data[0] = bgimage[0];
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tmp.width = width;
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tmp.height = height;
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//@ 3x3 blur
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softblur_apply( &tmp, width,height,0);
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veejay_msg(2, "Chameleon BlendTV: Snapped background mask");
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return 1;
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}
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int chameleonblend_malloc(int w, int h)
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{
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int i;
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for( i = 0; i < 3 ; i ++ ) {
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bgimage[i] = (uint8_t*)vj_malloc( sizeof(uint8_t) * RUP8(w*h));
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tmpimage[i] = (uint8_t*)vj_malloc( sizeof(uint8_t) * RUP8(w*h));
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}
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vj_frame_clear1( bgimage[0], pixel_Y_lo_, RUP8(w*h));
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vj_frame_clear1( tmpimage[0], pixel_Y_lo_, RUP8(w*h));
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for( i = 1; i < 3; i ++ ) {
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vj_frame_clear1( bgimage[i], 128, RUP8(w*h));
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vj_frame_clear1( tmpimage[i], 128, RUP8(w*h));
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}
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sum = (int32_t*) vj_calloc( w * h * sizeof(int32_t));
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timebuffer = (uint8_t*) vj_calloc( w* h * PLANES );
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has_bg = 0;
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plane = 0;
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N__ = 0;
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n__ = 0;
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last_mode_ = -1;
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return 1;
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}
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void chameleonblend_free()
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{
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int i;
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for( i = 0; i < 3 ;i ++ ) {
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if( bgimage[i]) free(bgimage[i]);
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if( tmpimage[i]) free(tmpimage[i]);
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bgimage[i] = NULL;
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tmpimage[i] = NULL;
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}
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if( timebuffer ) free(timebuffer);
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if( sum ) free(sum);
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timebuffer = NULL;
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sum = NULL;
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has_bg = 0;
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plane = 0;
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}
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static void drawAppearing(VJFrame *src, VJFrame *dest)
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{
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int i;
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unsigned int Y;
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uint8_t *p, *qy, *qu, *qv;
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int32_t *s;
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const int video_area = src->len;
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p = timebuffer + plane * video_area;
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qy = bgimage[0];
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qu = bgimage[1];
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qv = bgimage[2];
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uint8_t *lum = src->data[0];
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uint8_t *u0 = src->data[1];
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uint8_t *v0 = src->data[2];
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uint8_t *Y1 = dest->data[0];
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uint8_t *U1 = dest->data[1];
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uint8_t *V1 = dest->data[2];
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s = sum;
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uint8_t a,b,c;
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for(i=0; i<video_area; i++) {
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Y = lum[i];
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*s -= *p;
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*s += Y;
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*p = Y;
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Y = (abs(((int)Y<<PLANES_DEPTH) - (int)(*s)) * 8)>>PLANES_DEPTH;
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if(Y>255) Y = 255;
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a = lum[i];
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b = u0[i];
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c = v0[i];
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a += (( qy[i] - a ) * Y )>>8;
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Y1[i] = a;
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b += (( qu[i] - b ) * Y )>>8;
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U1[i] = b;
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c += (( qv[i] - c ) * Y )>>8;
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V1[i] = c;
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p++;
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s++;
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}
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plane++;
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plane = plane & (PLANES-1);
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}
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static void drawDisappearing(VJFrame *src, VJFrame *dest)
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{
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int i;
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unsigned int Y;
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uint8_t *p, *qu, *qv, *qy;
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int32_t *s;
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const int video_area = src->len;
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uint8_t *Y1 = dest->data[0];
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uint8_t *U1 = dest->data[1];
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uint8_t *V1 = dest->data[2];
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uint8_t *lum = src->data[0];
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uint8_t *u0 = src->data[1];
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uint8_t *v0 = src->data[2];
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p = timebuffer + (plane * video_area);
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qy = bgimage[0];
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qu= bgimage[1];
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qv= bgimage[2];
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s = sum;
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uint8_t a,b,c,A,B,C;
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for(i=0; i < video_area; i++) {
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Y = a = lum[i];
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b = u0[i];
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c = v0[i];
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A = qy[i];
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B = qu[i];
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C = qv[i];
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*s -= *p;
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*s += Y;
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*p = Y;
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Y = (abs(((int)Y<<PLANES_DEPTH) - (int)(*s)) * 8)>>PLANES_DEPTH;
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if(Y>255) Y = 255;
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A += (( a - A ) * Y )>> 8;
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Y1[i] = A;
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B += (( b - B ) * Y ) >> 8;
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U1[i] = B;
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C += (( c - C ) * Y ) >> 8;
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V1[i] = C;
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p++;
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s++;
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}
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plane++;
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plane = plane & (PLANES-1);
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}
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void chameleonblend_apply( VJFrame *frame, VJFrame *source, int width, int height, int mode )
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{
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uint32_t activity = 0;
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int auto_switch = 0;
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int tmp1,tmp2;
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if( motionmap_active() )
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{
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motionmap_scale_to( 32,32,1,1, &tmp1,&tmp2, &n__, &N__ );
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auto_switch = 1;
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activity = motionmap_activity();
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}
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else
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{
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N__ = 0;
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n__ = 0;
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}
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if( n__ == N__ || n__ == 0 )
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auto_switch = 0;
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if(auto_switch)
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{
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if( activity <= 40 )
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{
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veejay_msg(2, "Activity > 40, draw disappearing" );
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// into the wall
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drawDisappearing( source, frame );
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}
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else
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{
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veejay_msg(2, "Activity > 40, draw appearing" );
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// out of the wall
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drawAppearing( source, frame );
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}
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}
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else {
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if( mode == 0 )
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drawDisappearing( source, frame );
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else
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drawAppearing( source, frame );
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}
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}
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