//! \brief release pictures, release mutex
//!
//! <b>Important!</b> call stop before ende
void ende()
{
picture_release(&g_rgbPicture);
picture_release(&g_yuvPicture);
printf("capture.ende: called\n");
mutex_close(mutex);
mutex = NULL;
}
glui32 win_graphics_draw_picture(window_graphics_t *dwin, glui32 image,
glsi32 xpos, glsi32 ypos,
int scale, glui32 imagewidth, glui32 imageheight)
{
picture_t *pic = picture_find(image);
if (!pic) {
return FALSE;
}
if (!scale) {
imagewidth = pic->width;
imageheight = pic->height;
}
if (dwin->world) {
picture_draw(pic, dwin->world, xpos, ypos, imagewidth, imageheight, NULL);
dirty_rect(&dwin->dirtyul, &dwin->dirtylr,
xpos, ypos, imagewidth, imageheight);
}
else {
picture_draw(pic, xiowin, dwin->bbox.x+xpos, dwin->bbox.y+ypos,
imagewidth, imageheight, NULL);
}
picture_release(pic);
return TRUE;
}
/*! \brief return current camera picture, as rgb or yuv picture, threadsave
*
* \param rgb if set to zero (default), yuv-Picture will return, <br>
* if set to other value, rgb-Picture will return
* \param removeFrame if set to 1 (default) the next picture will be catch <br>
* if set to zero, the last picture will be returned
* \return SPicture pointer to lokal buffer, which didn't change until the next call from getPicture with
* the same rgb-parameter
* \return NULL if any error occured
*/
SPicture* getPicture(int rgb/* = 0*/, int removeFrame/* = 1*/)
{
if(mutex_lock(mutex))
g_Messages.push(string("getPicture</b> <font color='red'>Fehler bei mutex_lock</font>"));
// if start wasn't called
if(!g_run)
{
while(g_capture.isOpened())
g_capture.release();
printf("encoder.getPicture after call g_capture.release\n");
g_Messages.push(string("getPicture</b> <font color='blue'>Kamera wurde geschlossen</font>"));
if(mutex_unlock(mutex))
g_Messages.push(string("getPicture</b> <font color='red'>Fehler bei mutex_unlock 1</font>"));
return 0;
}
// try to open capture
else if(!g_capture.isOpened())
{
g_Messages.push(string("getPicture</b> <font color='red'>keine Kamera geoeffnet!</font>"));
if(mutex_unlock(mutex))
g_Messages.push(string("getPicture</b> <font color='red'>Fehler bei mutex_unlock 2</font>"));
return 0;
}
//get next or last picture
Mat m, m2, m3;
if(!removeFrame)
g_capture.retrieve(m);
else
g_capture >> m; // get a new frame from camer
if(!m.size().area())
{
g_Messages.push(string("getPicture</b> <font color='red'>picture from camera is empty</font>"));
if(mutex_unlock(mutex))
g_Messages.push(string("getPicture</b> <font color='red'>Fehler bei mutex_unlock 3</font>"));
return 0;
}
//m = cvLoadImage("test.jpg");
if(m.depth() != CV_8U)
{
g_Messages.push(string("getPicture</b> <font color='red'>depth != unsigned char</font>\n"));
if(mutex_unlock(mutex))
g_Messages.push(string("getPicture</b> <font color='red'>Fehler bei mutex_unlock 4</font>"));
return 0;
}
//m.convertTo(m2, )
//Scale Picture to choosen resolution (if camera didn't support it)
Mat matrices[4];
//IplImage src = m;
// IplImage* scaled = cvCreateImage(cvSize(g_cfg.width, g_cfg.height), IPL_DEPTH_8U, 3);
//cvResize( &src, scaled, CV_INTER_LINEAR );
m3.create(g_cfg.width, g_cfg.height, m.type());
resize(m, m3, Size(g_cfg.width, g_cfg.height));
char buffer[256];
sprintf(buffer, "getPicture</b> <i>breite: %d, hoehe: %d, area: %d</i>", m.size().width, m.size().height, m.size().area());
// g_Messages.push(string(buffer));
//rgb-output
if(rgb)
{
//imshow("LIVE", scaled);
split(m3, matrices);
matrices[3] = matrices[0].clone();
matrices[3] = Scalar(255);
merge(matrices, 4, m2);
//get current buffer size and required buffer size
int oldSize = picture_getSize(&g_rgbPicture);
g_rgbPicture.width = m2.cols;
g_rgbPicture.height = m2.rows;
int newSize = picture_getSize(&g_rgbPicture);
//compare buffer size and picture size, and make new buffer, if picture size differ
if(oldSize != newSize)
{
picture_release(&g_rgbPicture);
if(picture_create(&g_rgbPicture, m2.cols, m2.rows, 4))
{
g_Messages.push(string("getPicture</b> <font color='red'>Fehler beim speicher reservieren in getPicture rgb!</font>"));
if(mutex_unlock(mutex))
g_Messages.push(string("getPicture</b> <font color='red'>Fehler bei mutex_unlock 5</font>"));
return NULL;
}
}
//return 0;
//copy picture to buffer
size_t size = m2.cols*m2.rows*4;
memcpy(g_rgbPicture.channel1, m2.data, size);
//free scaled image
//cvReleaseImage(&scaled);
if(mutex_unlock(mutex))
g_Messages.push(string("getPicture</b> <font color='red'>Fehler bei mutex_unlock 6</font>"));
//return pointer to picture buffer
return &g_rgbPicture;
}
// yuv-Output
else
{
//convert and split picture
cvtColor(m3, m2, CV_BGR2YCrCb);
split(m2, matrices);
IplImage* U = cvCreateImage(cvSize(m3.cols/2, m3.rows/2), IPL_DEPTH_8U, 1);
IplImage* V = cvCreateImage(cvSize(m3.cols/2, m3.rows/2), IPL_DEPTH_8U, 1);
IplImage uSrc = matrices[1];
IplImage vSrc = matrices[2];
//create resized u and v pictures (half-size)
cvResize(&uSrc, U, CV_INTER_LINEAR);
cvResize( &vSrc, V, CV_INTER_LINEAR );
// imshow("Y", matrices[0]);
//imshow("U", U);
//imshow("V", V);
//get current buffer size and required buffer size
int oldSize = picture_getSize(&g_yuvPicture);
g_yuvPicture.width = m3.cols;
g_yuvPicture.height = m3.rows;
int newSize = picture_getSize(&g_yuvPicture);
//compare buffer size and picture size, and make new buffer, if picture size differ
if(oldSize != newSize)
{
picture_release(&g_yuvPicture);
if(picture_create(&g_yuvPicture, m2.cols, m2.rows, 1))
{
g_Messages.push(string("getPicture</b> <font color='red'>Fehler beim speicher reservieren in getPicture yuv!</font>"));
if(mutex_unlock(mutex))
g_Messages.push(string("getPicture</b> <font color='red'>Fehler bei mutex_unlock 7</font>"));
return 0;
}
}
//return 0;
//copy channels
size_t size = m2.cols*m2.rows;
memcpy(g_yuvPicture.channel1, matrices[0].data, size);
memcpy(g_yuvPicture.channel2, V->imageData, size/4);
memcpy(g_yuvPicture.channel3, U->imageData, size/4);
//release u and v pictures
cvReleaseImage(&U);
cvReleaseImage(&V);
// cvReleaseImage(&scaled);
if(mutex_unlock(mutex))
g_Messages.push(string("getPicture</b> <font color='red'>Fehler bei mutex_unlock 8</font>"));
//return pointer to picture buffer
return &g_yuvPicture;
}
if(mutex_unlock(mutex))
g_Messages.push(string("getPicture</b> <font color='red'>Fehler bei mutex_unlock 9</font>"));
return NULL;
}
