Added comments to the Bugs struct in OpenGL.h detailing some driver bugs that have workarounds that don't need conditional codepaths.

src/modules/graphics/opengl/OpenGL.h

@@ -171,16 +171,36 @@ public:
 
 	struct Bugs
 	{
-		// On AMD's Windows (and probably Linux) drivers,
+		/**
-		// glBindFramebuffer + glClear + glBindFramebuffer + draw(fbo_tex) won't
+		 * On AMD's Windows (and probably Linux) drivers,
-		// work unless there's some kind of draw or state change which causes
+		 * glBindFramebuffer + glClear + glBindFramebuffer + draw(fbo_tex) won't
-		// the texture's contents to update (just drawing the texture won't
+		 * work unless there's some kind of draw or state change which causes
-		// always do it).
+		 * the texture's contents to update (just drawing the texture won't
-		// Activating shader program 0 and then activating the actual program
+		 * always do it).
-		// seems to always 'fix' it for me.
+		 * Activating shader program 0 and then activating the actual program
-		// Bug observed January 2016 with multiple AMD GPUs and driver versions.
+		 * seems to always 'fix' it for me.
-		// https://love2d.org/forums/viewtopic.php?f=4&t=81496
+		 * Bug observed January 2016 with multiple AMD GPUs and driver versions.
+		 * https://love2d.org/forums/viewtopic.php?f=4&t=81496
+		 **/
 		bool clearRequiresDriverTextureStateUpdate;
+
+		/**
+		 * Other bugs which have workarounds that don't use conditional code at
+		 * the moment:
+		 *
+		 * Kepler nvidia GPUs in at least OS X 10.10 and 10.11 fail to render
+		 * geometry with glDrawElements if index data comes from a Buffer
+		 * Object but and vertex data doesn't. One workaround is to use a
+		 * CPU-side index array when there's also a CPU-side vertex array.
+		 * https://love2d.org/forums/viewtopic.php?f=4&t=81401&start=10
+		 *
+		 * Some android drivers don't seem to initialize the sampler index
+		 * values of sampler uniforms in shaders to 0 (which is required by the
+		 * GLSL ES specification) when linking the shader program. One
+		 * workaround is to always set the values of said sampler uniforms to 0
+		 * just after linking the shader program.
+		 * https://love2d.org/forums/viewtopic.php?f=4&t=81458
+		 **/
 	} bugs;
 
 	OpenGL();