FrameBuffer FrameSource::getDepthCorrectionCoefficients(void) const
{
/* Get the source's frame size and create a result frame buffer: */
const unsigned int* frameSize=getActualFrameSize(DEPTH);
FrameBuffer result(frameSize[0],frameSize[1],frameSize[1]*frameSize[0]*sizeof(PixelDepthCorrection));
/* Initialize the frame buffer to the identity transformation: */
PixelDepthCorrection* pdcPtr=static_cast<PixelDepthCorrection*>(result.getBuffer());
for(unsigned int y=0;y<frameSize[1];++y)
for(unsigned int x=0;x<frameSize[0];++x,++pdcPtr)
{
pdcPtr->scale=1.0f;
pdcPtr->offset=0.0f;
}
/* Return the identity correction map: */
return result;
}
// Redraw function, called by GTK each time we ask for a frame redraw
static gboolean
on_expose_event (GtkWidget *widget,
GdkEventExpose *event,
gpointer data)
{
display_stage_cfg_t *cfg = (display_stage_cfg_t *)data;
if (2.0 != cfg->bpp)
{
return FALSE;
}
uint32_t width = 0, height = 0, stride = 0;
getPicSizeFromBufferSize (cfg->fbSize, &width, &height);
stride = cfg->bpp * width;
if (0 == stride)
{
return FALSE;
}
uint32_t actual_width = 0, actual_height = 0;
getActualFrameSize (cfg, &actual_width, &actual_height);
gtk_window_resize (GTK_WINDOW (widget), actual_width, actual_height);
cairo_t *cr = gdk_cairo_create (widget->window);
cairo_surface_t *surface = cairo_image_surface_create_for_data (cfg->frameBuffer, CAIRO_FORMAT_RGB16_565, width, height, stride);
cairo_set_source_surface (cr, surface, 0.0, 0.0);
cairo_paint (cr);
cairo_surface_destroy (surface);
cairo_destroy (cr);
return FALSE;
}
