mirror of
https://github.com/game-stop/veejay.git
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137 lines
3.9 KiB
C
137 lines
3.9 KiB
C
/*
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* Linux VeeJay
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*
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* Copyright(C)2002 Niels Elburg <elburg@hio.hen.nl>
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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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/*
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shift pixels in row/column to get a 'bathroom' window look. Use the parameters
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to set the distance and mode
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*/
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#include <config.h>
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#include <stdlib.h>
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#include <libvjmem/vjmem.h>
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#include "bathroom.h"
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static uint8_t *bathroom_frame[3];
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vj_effect *bathroom_init(int width,int height)
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{
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vj_effect *ve = (vj_effect *) vj_malloc(sizeof(vj_effect));
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ve->num_params = 2;
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ve->defaults = (int *) vj_malloc(sizeof(int) * ve->num_params); /* default values */
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ve->limits[0] = (int *) vj_malloc(sizeof(int) * ve->num_params); /* min */
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ve->limits[1] = (int *) vj_malloc(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->limits[0][1] = 1;
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ve->limits[1][1] = 64;
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ve->defaults[0] = 0;
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ve->defaults[1] = 32;
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ve->description = "Bathroom Window";
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ve->sub_format = 1;
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ve->extra_frame = 0;
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ve->has_user = 0;
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return ve;
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}
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// FIXME private
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int bathroom_malloc(int width, int height)
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{
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bathroom_frame[0] = (uint8_t*)vj_malloc(sizeof(uint8_t) * width * height);
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if(!bathroom_frame[0]) return 0;
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bathroom_frame[1] = (uint8_t*)vj_malloc(sizeof(uint8_t) * width * height);
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if(!bathroom_frame[1]) return 0;
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bathroom_frame[2] = (uint8_t*)vj_malloc(sizeof(uint8_t) * width * height);
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if(!bathroom_frame[2]) return 0;
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return 1;
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}
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void bathroom_free() {
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if(bathroom_frame[0]) free(bathroom_frame[0]);
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if(bathroom_frame[1]) free(bathroom_frame[1]);
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if(bathroom_frame[2]) free(bathroom_frame[2]);
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}
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void bathroom_verti_apply(VJFrame *frame, int width, int height, int val)
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{
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unsigned int i;
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const unsigned int len = frame->len;
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const unsigned int y_val = val;
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unsigned int x,y;
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uint8_t *Y = frame->data[0];
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uint8_t *Cb = frame->data[1];
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uint8_t *Cr = frame->data[2];
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veejay_memcpy( bathroom_frame[0], Y, len);
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veejay_memcpy( bathroom_frame[1], Cb, len);
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veejay_memcpy( bathroom_frame[2], Cr, len);
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for(y=0; y < height;y++) {
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for(x=0; x <width; x++) {
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i = (x + (x % y_val) - (y_val>>1)) + (y*width);
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if(i < 0) i = 0;
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if(i >= len) i = len-1;
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Y[y*width+x] = bathroom_frame[0][i];
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Cb[y*width+x] = bathroom_frame[1][i];
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Cr[y*width+x] = bathroom_frame[2][i];
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}
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}
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}
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void bathroom_hori_apply(VJFrame *frame, int width, int height, int val)
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{
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unsigned int i;
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unsigned int len = (width * height);
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const unsigned int y_val = val;
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uint8_t *Y = frame->data[0];
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uint8_t *Cb = frame->data[1];
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uint8_t *Cr = frame->data[2];
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unsigned int x,y;
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veejay_memcpy( bathroom_frame[0], Y, len);
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veejay_memcpy( bathroom_frame[1], Cb, len);
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veejay_memcpy( bathroom_frame[2], Cr, len);
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for(y=0; y < height;y++) {
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for(x=0; x <width; x++) {
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i = ((y*width) + (y % y_val) - (y_val>>1)) + x;
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if(i < 0) i += width;
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Y[(y*width)+x] = bathroom_frame[0][i];
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Cb[(y*width)+x] = bathroom_frame[1][i];
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Cr[(y*width)+x] = bathroom_frame[2][i];
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}
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}
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}
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void bathroom_apply(VJFrame *frame, int width, int height, int mode, int val) {
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switch(mode) {
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case 1: bathroom_hori_apply(frame,width,height,val); break;
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case 0: bathroom_verti_apply(frame,width,height,val); break;
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}
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}
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