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/* Copyright (c) 2014 Stanislaw Halik
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*/
#include "ht_video_widget.h"
using namespace std;
void HTVideoWidget::update_image(unsigned char *frame, int width, int height)
{
QMutexLocker foo(&mtx);
if (!fresh)
{
memcpy(fb, frame, width * height * 3);
this->width = width;
this->height = height;
fresh = true;
}
}
void HTVideoWidget::update_and_repaint()
{
QImage qframe;
{
QMutexLocker foo(&mtx);
if (width*height <= 0 || !fresh)
return;
fresh = false;
qframe = QImage(width, height, QImage::Format_RGB888);
uchar* data = qframe.bits();
const int pitch = qframe.bytesPerLine();
for (int y = 0; y < height; y++)
{
const int part = y*width;
for (int x = 0; x < width; x++)
{
const int pos = 3 * (part + x);
const int x_ = x * 3;
data[x_ + 0] = fb[pos + 2];
data[x_ + 1] = fb[pos + 1];
data[x_ + 2] = fb[pos + 0];
}
data += pitch;
}
}
qframe = qframe.scaled(size(), Qt::IgnoreAspectRatio, Qt::FastTransformation);
{
QMutexLocker foo(&mtx);
texture = qframe;
}
update();
}
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