mirror of
https://github.com/game-stop/veejay.git
synced 2025-12-19 22:30:06 +01:00
124 lines
3.4 KiB
C
124 lines
3.4 KiB
C
/*
|
|
* Linux VeeJay
|
|
*
|
|
* Copyright(C)2002 Niels Elburg <elburg@hio.hen.nl>
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version 2
|
|
* of the License , or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307 , USA.
|
|
*/
|
|
|
|
#include "fadecolor.h"
|
|
#include <stdlib.h>
|
|
#include <libvje/internal.h>
|
|
|
|
vj_effect *fadecolor_init(int w,int h)
|
|
{
|
|
vj_effect *ve = (vj_effect *) vj_calloc(sizeof(vj_effect));
|
|
ve->num_params = 4;
|
|
ve->defaults = (int *) vj_calloc(sizeof(int) * ve->num_params); /* default values */
|
|
ve->limits[0] = (int *) vj_calloc(sizeof(int) * ve->num_params); /* min */
|
|
ve->limits[1] = (int *) vj_calloc(sizeof(int) * ve->num_params); /* max */
|
|
ve->defaults[0] = 255;
|
|
ve->defaults[1] = VJ_EFFECT_COLOR_BLACK;
|
|
ve->defaults[2] = 15;
|
|
ve->defaults[3] = 1;
|
|
ve->sub_format = 0;
|
|
ve->limits[0][0] = 1;
|
|
ve->limits[1][0] = 255;
|
|
|
|
ve->limits[0][1] = 0;
|
|
ve->limits[1][1] = 7;
|
|
|
|
ve->limits[0][2] = 1;
|
|
ve->limits[1][2] = (120 * 25);
|
|
ve->limits[0][3] = 0;
|
|
ve->limits[1][3] = 1;
|
|
ve->has_user = 0;
|
|
ve->description = "Transition Fade to Color";
|
|
ve->extra_frame = 0;
|
|
return ve;
|
|
}
|
|
|
|
void colorfade_apply(VJFrame *frame, int width, int height, int opacity,
|
|
int color)
|
|
{
|
|
unsigned int i, op0, op1;
|
|
unsigned int len = width * height;
|
|
uint8_t colorCb = 128, colorCr = 128;
|
|
uint8_t colorY;
|
|
const int uv_len = frame->uv_len;
|
|
uint8_t *Y = frame->data[0];
|
|
uint8_t *Cb = frame->data[1];
|
|
uint8_t *Cr = frame->data[2];
|
|
|
|
switch (color) {
|
|
case VJ_EFFECT_COLOR_RED:
|
|
colorCb = VJ_EFFECT_CB_RED;
|
|
colorCr = VJ_EFFECT_CR_RED;
|
|
colorY = VJ_EFFECT_LUM_RED;
|
|
break;
|
|
case VJ_EFFECT_COLOR_BLUE:
|
|
colorCb = VJ_EFFECT_CB_BLUE;
|
|
colorCr = VJ_EFFECT_CR_BLUE;
|
|
colorY = VJ_EFFECT_LUM_BLUE;
|
|
|
|
break;
|
|
case VJ_EFFECT_COLOR_GREEN:
|
|
colorCb = VJ_EFFECT_CB_GREEN;
|
|
colorCr = VJ_EFFECT_CR_GREEN;
|
|
colorY = VJ_EFFECT_LUM_GREEN;
|
|
|
|
break;
|
|
case VJ_EFFECT_COLOR_CYAN:
|
|
colorCb = VJ_EFFECT_CB_CYAN;
|
|
colorCr = VJ_EFFECT_CR_CYAN;
|
|
colorY = VJ_EFFECT_LUM_CYAN;
|
|
|
|
break;
|
|
case VJ_EFFECT_COLOR_MAGNETA:
|
|
colorCb = VJ_EFFECT_CB_MAGNETA;
|
|
colorCr = VJ_EFFECT_CR_MAGNETA;
|
|
colorY = VJ_EFFECT_LUM_MAGNETA;
|
|
|
|
break;
|
|
case VJ_EFFECT_COLOR_YELLOW:
|
|
colorCb = VJ_EFFECT_CB_YELLOW;
|
|
colorCr = VJ_EFFECT_CR_YELLOW;
|
|
colorY = VJ_EFFECT_LUM_YELLOW;
|
|
|
|
break;
|
|
case VJ_EFFECT_COLOR_BLACK:
|
|
colorCb = VJ_EFFECT_CB_BLACK;
|
|
colorCr = VJ_EFFECT_CR_BLACK;
|
|
colorY = VJ_EFFECT_LUM_BLACK;
|
|
|
|
break;
|
|
case VJ_EFFECT_COLOR_WHITE:
|
|
colorCb = VJ_EFFECT_CB_WHITE;
|
|
colorCr = VJ_EFFECT_CR_WHITE;
|
|
break;
|
|
}
|
|
|
|
op1 = (opacity > 255) ? 255 : opacity;
|
|
op0 = 255 - op1;
|
|
|
|
for (i = 0; i < len; i++)
|
|
Y[i] = (op0 * Y[i] + op1 * colorY) >> 8;
|
|
for (i = 0; i < uv_len; i++) {
|
|
Cb[i] = (op0 * Cb[i] + op1 * colorCb) >> 8;
|
|
Cr[i] = (op0 * Cr[i] + op1 * colorCr) >> 8;
|
|
}
|
|
}
|
|
void fadecolor_free(){}
|