void dumpPNG(const std::string &filename)
{
#ifdef PNGOUT
YImage image;
image.resize(g_display_controller.getWindowWidth(), g_display_controller.getWindowHeight());
glPixelStorei(GL_PACK_ALIGNMENT, 4);
glPixelStorei(GL_PACK_ROW_LENGTH, 0);
glPixelStorei(GL_PACK_SKIP_ROWS, 0);
glPixelStorei(GL_PACK_SKIP_PIXELS, 0);
glReadBuffer(GL_BACK);
glFinish();
glReadPixels(0, 0, g_display_controller.getWindowWidth(), g_display_controller.getWindowHeight(), GL_RGBA, GL_UNSIGNED_BYTE, image.data());
image.flip();
image.save(filename.c_str());
#endif
}
// TODO: Preallocate space for for the image, use a faster method to read the buffer
void dumpPNG( const std::string& filename )
{
YImage image;
image.resize(g_simulation_ensemble->getWindowWidth(), g_simulation_ensemble->getWindowHeight());
glPixelStorei(GL_PACK_ALIGNMENT, 4);
glPixelStorei(GL_PACK_ROW_LENGTH, 0);
glPixelStorei(GL_PACK_SKIP_ROWS, 0);
glPixelStorei(GL_PACK_SKIP_PIXELS, 0);
glReadBuffer(GL_BACK);
glFinish();
glReadPixels(0, 0, g_simulation_ensemble->getWindowWidth(), g_simulation_ensemble->getWindowHeight(), GL_RGBA, GL_UNSIGNED_BYTE, image.data());
image.flip();
if( !image.save(filename.c_str()) )
{
std::cerr << outputmod::startred << "TDSmoke ERROR: " << outputmod::endred << "Failed to save png image " << filename << ". Exiting." << std::endl;
exit(1);
}
}
IGL_INLINE boost::thread igl::render_to_png_async(
const std::string png_file,
const int width,
const int height,
const bool alpha,
const bool fast)
{
// Part that should serial
YImage * img = new YImage();
img->resize(width,height);
glReadPixels(
0,
0,
width,
height,
GL_RGBA,
GL_UNSIGNED_BYTE,
img->data());
// Part that should be asynchronous
return boost::thread(render_to_png_async_helper,img,png_file,alpha,fast);
}