mirror of
https://github.com/game-stop/veejay.git
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132 lines
3.9 KiB
C
132 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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#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 "vbar.h"
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vj_effect *vbar_init(int width, int height)
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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 = 5;
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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->defaults[0] = 4;
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ve->defaults[1] = 1;
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ve->defaults[2] = 3;
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ve->defaults[3] = 0;
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ve->defaults[4] = 0;
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ve->limits[0][0] = 1;
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ve->limits[1][0] = height;
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ve->limits[0][1] = 0;
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ve->limits[1][1] = height;
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ve->limits[0][2] = 0;
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ve->limits[1][2] = height;
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ve->limits[0][3] = 0;
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ve->limits[1][3] = height;
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ve->limits[0][4] = 0;
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ve->limits[1][4] = height;
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ve->description = "Vertical Sliding Bars";
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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, "Divider", "Top Y", "Bot Y", "Top X", "Bot X" );
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return ve;
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}
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/* p0 351 , p1 92 : positioneert image 1 bovenaan
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p4 beweegt image offset verticaal (frame in frame)
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p5 beweegt image offset horizontaal (frame in frame) */
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static int bar_top_auto = 0;
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static int bar_bot_auto = 0;
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static int bar_top_vert = 0;
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static int bar_bot_vert = 0;
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void vbar_apply(VJFrame *frame, VJFrame *frame2, int width, int height,int divider, int top_y, int bot_y, int top_x, int bot_x ) {
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//int top_width = width; /* frame in frame destination area */
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int top_width = width/divider;
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int bottom_width = width - top_width;
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//int bottom_width = width; /* frame in frame destionation area */
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int x,y;
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int yy=0;
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int y2 = bar_top_auto + top_y; /* destination */
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int x2 = bar_top_vert + top_x;
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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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uint8_t *Y2 = frame2->data[0];
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uint8_t *Cb2 = frame2->data[1];
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uint8_t *Cr2 = frame2->data[2];
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int len = frame->len;
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if(y2 > height) { y2 = 0; bar_top_auto = 0; }
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if(x2 > width) { x2 = 0; bar_top_vert = 0; }
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/* start with top frame in a frame */
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for( y = 0; y < height-y2; y++ ) {
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for ( x = 0; x < top_width; x++ ) {
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Y[ (y*width + x)] = Y2[ ( (y+y2) *width + x +x2)];
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Cb[ (y*width + x)] = Cb2[ ( (y+y2) *width + x +x2)];
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Cr[ (y*width + x)] = Cr2[ ( (y+y2) *width + x +x2)];
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}
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}
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/* do bottom part */
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y2 = bar_bot_auto + bot_y;
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x2 = bar_bot_vert + bot_x;
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if(y2 > height) { y2 = 0; bar_bot_auto = 0; }
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if(x2 > width) { x2 = 0; bar_bot_vert = 0; }
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/* start with bottom frame in a frame */
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for ( y = 0; (yy+y2) < height; y++) {
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yy++;
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for(x=bottom_width; (x+x2) < width; x++ ) {
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int pos = (yy+y2) * width +x + x2 ;
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if(pos<len)
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{
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Y[ (y*width + x)] = Y2[((yy+y2)*width+x+x2)];
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Cb[ (y*width + x)] = Cb2[((yy+y2)*width+x+x2)];
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Cr[ (y*width + x)] = Cr2[((yy+y2)*width+x+x2)];
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}
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}
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}
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bar_top_auto += top_y;
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bar_bot_auto += bot_y;
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bar_top_vert += top_x;
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bar_bot_vert += bot_x;
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}
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void vbar_free(){}
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