/*
saveScreenshot - Writes a screenshot to the specified filename in JPEG
*/
void saveScreenshot (char *filename)
{
Pic *in = NULL;
if (filename == NULL)
return;
/* Allocate a picture buffer */
in = pic_alloc (Scene::WINDOW_WIDTH, Scene::WINDOW_HEIGHT, 3, NULL);
printf("File to save to: %s\n", filename);
/* Loop over each row of the image and copy into the image */
for (int i = Scene::WINDOW_HEIGHT - 1; i >= 0; i--)
{
glReadPixels(0, Scene::WINDOW_HEIGHT - 1 - i, Scene::WINDOW_WIDTH, 1, GL_RGB,
GL_UNSIGNED_BYTE, &in->pix[i*in->nx*in->bpp]);
}
/* Output the file */
if (jpeg_write(filename, in))
{
printf("File saved Successfully\n");
}
else
{
printf("Error in Saving\n");
}
/* Free memory used by image */
pic_free(in);
}
/* Write a screenshot to the specified filename */
void saveScreenshot (char *filename)
{
int i, j;
Pic *in = NULL;
if (filename == NULL)
return;
/* Allocate a picture buffer */
in = pic_alloc(640, 480, 3, NULL);
printf("File to save to: %s\n", filename);
for (i=479; i>=0; i--) {
glReadPixels(0, 479-i, 640, 1, GL_RGB, GL_UNSIGNED_BYTE,
&in->pix[i*in->nx*in->bpp]);
}
if (jpeg_write(filename, in))
printf("File saved Successfully\n");
else
printf("Error in Saving\n");
pic_free(in);
}
static int draw_frame(uint8_t *src[])
{
static int framecounter = 0, subdircounter = 0;
char buf[BUFLENGTH];
static char subdirname[BUFLENGTH] = "";
/* Start writing to new subdirectory after a certain amount of frames */
if ( framecounter == jpeg_maxfiles ) {
framecounter = 0;
}
/* If framecounter is zero (or reset to zero), increment subdirectory
* number and create the subdirectory.
* If jpeg_subdirs is not set, do nothing and resort to old behaviour. */
if ( !framecounter && jpeg_subdirs ) {
subdircounter++;
snprintf(subdirname, BUFLENGTH, "%s%08d", jpeg_subdirs, subdircounter);
snprintf(buf, BUFLENGTH, "%s/%s", jpeg_outdir, subdirname);
jpeg_mkdir(buf, 0); /* This function only returns if creation was
successful. If not, the player will exit. */
}
framenum++;
/* snprintf the full pathname of the outputfile */
snprintf(buf, BUFLENGTH, "%s/%s/%08d.jpg", jpeg_outdir, subdirname,
framenum);
framecounter++;
return jpeg_write(buf, src[0]);
}
/* Write a screenshot to the specified filename */
void saveScreenshot (char *filename){
int i, j;
Pic *in = NULL;
Pic *out = NULL;
if (filename == NULL)
return;
in = pic_alloc(640, 480, 3, NULL);
out = pic_alloc(640, 480, 3, NULL);
printf("File to save to: %s\n", filename);
glReadPixels(0, 0, 640, 480, GL_RGB, GL_UNSIGNED_BYTE, &in->pix[0]);
for ( int j=0; j<480; j++ ) {
for ( int i=0; i<640; i++ ) {
PIC_PIXEL(out, i, j, 0) = PIC_PIXEL(in, i, 480-1-j, 0);
PIC_PIXEL(out, i, j, 1) = PIC_PIXEL(in, i, 480-1-j, 1);
PIC_PIXEL(out, i, j, 2) = PIC_PIXEL(in, i, 480-1-j, 2);
}
}
if (jpeg_write(filename, out))
printf("File saved Successfully\n");
else
printf("Error in Saving\n");
pic_free(in);
pic_free(out);
}
void save_jpg()
{
Pic *in = NULL;
in = pic_alloc(640, 480, 3, NULL);
printf("Saving JPEG file: %s\n", filename);
memcpy(in->pix,buffer,3*WIDTH*HEIGHT);
if (jpeg_write(filename, in))
printf("File saved Successfully\n");
else
printf("Error in Saving\n");
pic_free(in);
}
/*
* Capture v4l2 frame and save to jpeg
*/
int capture_frame(char *jpegFileName)
{
unsigned int index;
/* Request a capture buffer from the driver that can be copied
* to framebuffer */
v4l2_dequeue_buffer(&camera);
index = camera.buf.index;
jpeg_write(jpegFileName, (unsigned char *)camera.buffers[index].start,
camera.width, camera.height);
/* Give the buffer back to the driver so it can be filled again */
v4l2_queue_buffer(&camera);
return 0;
}
/*
* pic_write: write pic to file in the specified format
* returns TRUE on success, FALSE on failure
*/
int pic_write(char *file, Pic *pic, Pic_file_format format)
{
switch( format )
{
/*
case PIC_TIFF_FILE:
return tiff_write(file, pic);
break;
*/
case PIC_PPM_FILE:
return ppm_write(file, pic);
break;
case PIC_JPEG_FILE:
return jpeg_write(file, pic);
break;
default:
fprintf(stderr, "pic_write: can't write %s, unknown format\n", file);
return FALSE;
}
}
