mirror of
https://github.com/game-stop/veejay.git
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111 lines
2.9 KiB
C
111 lines
2.9 KiB
C
/*
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* Linux VeeJay
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*
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* Copyright(C)2002 Niels Elburg <nwelburg@gmail.com>
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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 <stdint.h>
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#include <stdio.h>
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#include <libvjmem/vjmem.h>
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#include "common.h"
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#include "rawman.h"
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vj_effect *rawman_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->defaults[0] = 0;
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ve->defaults[1] = 15;
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ve->limits[0][0] = 0;
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ve->limits[1][0] = 4;
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ve->limits[0][1] = 1;
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ve->limits[1][1] = 255;
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ve->sub_format = -1;
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ve->description = "Raw Data Manipulation";
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ve->parallel = 1;
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ve->has_user = 0;
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ve->extra_frame = 0;
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ve->param_description = vje_build_param_list( ve->num_params, "Mode", "Value");
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ve->hints = vje_init_value_hint_list( ve->num_params );
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vje_build_value_hint_list( ve->hints, ve->limits[1][0],0,
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"Additive", "Subtractive","Multiply","Divide","Lighten","Hardlight");
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return ve;
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}
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void rawman_apply(VJFrame *frame, unsigned int width,
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unsigned int height, unsigned int mode, unsigned int YY)
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{
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unsigned int len = width * height;
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unsigned int i;
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uint8_t *Y = frame->data[0];
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/* playing with data. experimentation gives the greatest results.
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maybe these routine don't seem usefull, but combine them with
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other effects.
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*/
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switch (mode) {
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case 1: /* 1 in reverse, if Y == 0 this darkens the image */
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for (i = 0; i < len; i++) {
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if ((Y[i] < YY)) {
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Y[i] *= 2;
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} else {
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Y[i] /= 2;
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}
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}
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break;
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case 2:
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for (i = 0; i < len; i++) {
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Y[i] -= YY;
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}
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break;
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case 3: /* divide action */
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for (i = 0; i < len; i++) {
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if ((Y[i] < YY)) {
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Y[i] /= 2;
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} else {
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/* divide by 2 */
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Y[i] *= 2;
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}
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}
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break;
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case 4: /* addition */
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for (i = 0; i < len; i++) {
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if ((Y[i] < YY)) {
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Y[i] += YY;
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} else {
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Y[i] -= YY;
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}
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}
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break;
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default:
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/* brightness */
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for (i = 0; i < len; i++) {
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Y[i] += YY;
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}
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break;
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}
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}
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void rawman_free(){}
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