cleanups. and restore accidentally deleted old system-gl.h

1 files changed, 4 insertions, 2 deletions

diff --git a/src/imageutils-lodepng.cc b/src/imageutils-lodepng.cc
index fab1cd9..a034702 100644
--- a/src/imageutils-lodepng.cc
+++ b/src/imageutils-lodepng.cc
@@ -8,17 +8,19 @@ bool write_png(std::ostream &output, unsigned char *pixels, int width, int heigh
   //encoder.settings.zlibsettings.windowSize = 2048;
   //LodePNG_Text_add(&encoder.infoPng.text, "Comment", "Created with LodePNG");
   size_t dataout_size = -1;
+	bool result = false;
   unsigned char *dataout = (unsigned char *)malloc(width*height*4);
 	if (!dataout) {
 		perror("Error allocating memory while writing png\n");
-		return false;
+		return result;
 	}
   LodePNG_encode(&dataout, &dataout_size, pixels, width, height, LCT_RGBA, 8);
 	try {
 		output.write( reinterpret_cast<const char*>(dataout), dataout_size );
+		result = true;
 	} catch (const std::ios_base::failure &e) {
     std::cerr << "Error writing to ostream:" << e.what() << "\n";
 	}
 	free( dataout );
-  return true;
+  return result;
 }