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Initial checkin of veejay 1.4

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git-svn-id: svn://code.dyne.org/veejay/trunk@1172 eb8d1916-c9e9-0310-b8de-cf0c9472ead5
This commit is contained in:
Niels Elburg
2008-11-10 20:16:24 +00:00
parent d81258c54c
commit d8e6f98d53
793 changed files with 244409 additions and 0 deletions
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137
veejay-current/veejay-server/libvje/effects/transform.c Normal file
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/*
* 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 <stdlib.h>
#include <stdint.h>
#include <libvjmem/vjmem.h>
#include <stdio.h>
#include "transform.h"
#include "common.h"
vj_effect *transform_init(int width,int height)
{
vj_effect *ve = (vj_effect *) vj_calloc(sizeof(vj_effect));
ve->num_params = 1;
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] = 5;
//ve->defaults[1] = 1;
ve->limits[0][0] = 1;
ve->limits[1][0] = (height / 16);
//ve->limits[0][1] = 1;
//ve->limits[1][1] = 4096;
ve->description = "Transform Cubics";
ve->sub_format = 0;
ve->extra_frame = 0;
ve->has_user = 0;
ve->param_description = vje_build_param_list(ve->num_params, "Cubics");
return ve;
}
void transform_apply(VJFrame *frame, VJFrame *frame2, int width,
int height, const int size)
{
unsigned int ty, tx, y, x;
const unsigned int uv_height = frame->uv_height;
const unsigned int uv_width = frame->uv_width;
uint8_t *Y = frame->data[0];
uint8_t *Cb= frame->data[1];
uint8_t *Cr= frame->data[2];
uint8_t *Y2 = frame2->data[0];
uint8_t *Cb2= frame2->data[1];
uint8_t *Cr2= frame2->data[2];
/* Luminance */
for (y = 1; y < height; y++)
{
ty = y % size - (size >> 1);
if ((y / size) % 2)
{
ty = y - ty;
}
else
{
ty = y + ty;
}
if (ty < 0)
ty = 0;
if (ty >= height)
ty = height - 1;
for (x = 1; x < width; x++)
{
tx = x % size - (size >> 1);
if ((x / size) % 2)
{
tx = x - tx;
}
else
{
tx = x + tx;
}
if (tx < 0)
tx = 0;
if (tx >= width)
tx = width - 1;
Y[x + (y * width)] = Y2[(ty * width) + tx];
}
}
/* Chroma */
for (y = 1; y < uv_height; y++)
{
ty = y % size - (size >> 1);
if ((y / size) % 2) {
ty = y - ty;
}
else
{
ty = y + ty;
}
if (ty < 0)
ty = 0;
if (ty >= uv_height)
ty = uv_height - 1;
for (x = 1; x < uv_width; x++)
{
tx = x % size - (size >> 1);
if ((x / size) % 2)
{
tx = x - tx;
}
else
{
tx = x + tx;
}
if (tx < 0)
tx = 0;
if (tx >= uv_width)
tx = uv_width - 1;
Cb[x + (y * uv_width)] = Cb2[(ty * uv_width) + tx];
Cr[x + (y * uv_width)] = Cr2[(ty * uv_width) + tx];
}
}
}
void transform_free(){}