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/**
* @file util.c Simple DirectMedia Layer module -- utilities
*
* Copyright (C) 2010 Creytiv.com
*/
#include <string.h>
#include <re.h>
#include <rem.h>
#include <baresip.h>
#include "sdl.h"
static void img_copy_plane(uint8_t *dst, int dst_wrap,
const uint8_t *src, int src_wrap,
int width, int height)
{
if (!dst || !src)
return;
for (;height > 0; height--) {
memcpy(dst, src, width);
dst += dst_wrap;
src += src_wrap;
}
}
static int get_plane_bytewidth(int width, int plane)
{
if (plane == 1 || plane == 2)
width = -((-width) >> 1);
return (width * 8 + 7) >> 3;
}
void picture_copy(uint8_t *data[4], uint16_t linesize[4],
const struct vidframe *frame)
{
const int map[3] = {0, 2, 1};
int i;
for (i=0; i<3; i++) {
int h;
int bwidth = get_plane_bytewidth(frame->size.w, i);
h = frame->size.h;
if (i == 1 || i == 2) {
h = -((-frame->size.h) >> 1);
}
img_copy_plane(data[map[i]], linesize[map[i]],
frame->data[i], frame->linesize[i],
bwidth, h);
}
}
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