Define GlFormatChannels for GL_BGR and GL_BGRA

NikolausDemmel · Oct 4, 2019 · d33757d · d33757d
1 parent 8491d9f
commit d33757d
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/include/pangolin/gl/gl.hpp b/include/pangolin/gl/gl.hpp
@@ -92,7 +92,9 @@ inline size_t GlDataTypeBytes(GLenum type)
 
 inline size_t GlFormatChannels(GLenum data_layout)
 {
-    return format_channels[data_layout - GL_RED];
+  if (data_layout == GL_BGR) return 3;
+  if (data_layout == GL_BGRA) return 4;
+  return format_channels[data_layout - GL_RED];
 }
 
 //template<typename T>