mirror of
https://github.com/game-stop/veejay.git
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146 lines
3.7 KiB
C
146 lines
3.7 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 "crosspixel.h"
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#include "common.h"
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#include <stdlib.h>
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static uint8_t *cross_pixels[3];
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vj_effect *crosspixel_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 = 2;
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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->limits[0][1] = 1;
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ve->limits[1][1] = 40;
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ve->defaults[0] = 0;
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ve->defaults[1] = 2;
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ve->description = "Pixel Raster";
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ve->sub_format = 0;
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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 crosspixel_malloc(int w, int h)
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{
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cross_pixels[0] = (uint8_t*)vj_yuvalloc(w,h );
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cross_pixels[1] = cross_pixels[0] + (w * h );
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cross_pixels[2] = cross_pixels[1] + (w * h);
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return 1;
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}
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void crosspixel_free() {
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if(cross_pixels[0])
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free(cross_pixels[0]);
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cross_pixels[0] = NULL;
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cross_pixels[1] = NULL;
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cross_pixels[2] = NULL;
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}
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void crosspixel_apply(VJFrame *frame, int w, int h, int t,int v) {
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unsigned int x,y,pos;
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const unsigned int vv = v * 2; // only even numbers
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const unsigned int u_vv = vv >> frame->shift_h; // sfhit = / 2, shift_v = 2
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const int len = frame->len;
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const int uv_len = frame->uv_len;
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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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const int uv_width = frame->uv_width;
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const int uv_height = frame->uv_height;
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unsigned int p = 0;
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memcpy( cross_pixels[0], Y, len);
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memcpy( cross_pixels[1], Cb, uv_len);
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memcpy( cross_pixels[2], Cr, uv_len);
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if(t==0) {
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memset(Y, pixel_Y_lo_, len);
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memset(Cb, 128, uv_len);
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memset(Cr, 128, uv_len);
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}
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else
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{
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memset(Y, 235, len);
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memset(Cb, 128, uv_len);
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memset(Cr, 128, uv_len);
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}
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for(y=0; y < (h>>1); y++) {
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if( (y%vv)==1) {
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for(x=0; x < w; x+=vv) {
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for(p=0; p < vv; p++) {
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pos = (x+p) + ( y * w );
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Y[(x+(y*w))] = cross_pixels[0][pos];
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}
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}
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}
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}
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for(y=0; y < (uv_height >> frame->shift_v); y++) {
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if( (y%u_vv)==1) {
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for(x=0; x < uv_width; x+=u_vv) {
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for(p=0; p < u_vv; p++) {
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pos = (x+p) + ( y * uv_width );
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Cb[(x+(y*uv_width))] = cross_pixels[1][pos];
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Cr[(x+(y*uv_width))] = cross_pixels[2][pos];
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}
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}
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}
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}
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for(y=(h>>1); y < h; y++) {
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if( (y%vv)==1) {
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for(x=0; x < w; x+=vv) {
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for(p=0; p < vv; p++) {
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pos = (x+p) + ( y * w );
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Y[(x+(y*w))] = cross_pixels[0][pos];
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}
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}
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}
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}
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for(y=(uv_height >> frame->shift_v); y < uv_height; y++) {
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if( (y%u_vv)==1) {
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for(x=0; x < uv_width; x+=u_vv) {
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for(p=0; p < u_vv; p++) {
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pos = (x+p) + ( y * uv_width );
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Cb[(x+(y*uv_width))] = cross_pixels[1][pos];
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Cr[(x+(y*uv_width))] = cross_pixels[2][pos];
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}
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}
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}
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}
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}
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