Call the non-multisample version of storage if samples is zero

OpenGL defines it like this.  Do the check in application code so it works
even if EXT_framebuffer_multisample is not supported.

diff --git a/source/renderbuffer.cpp b/source/renderbuffer.cpp
index 9d19e08b814c7b6976236e61ba2bb32c36f59e6c..f146a915d64d27c213ef42b192068e4c8d14cd56 100644 (file)
--- a/source/renderbuffer.cpp
+++ b/source/renderbuffer.cpp
@@ -46,6 +46,9 @@ void Renderbuffer::storage(PixelFormat fmt, unsigned wd, unsigned ht)
 
 void Renderbuffer::storage_multisample(unsigned samples, PixelFormat fmt, unsigned wd, unsigned ht)
 {
+       if(!samples)
+               return storage(fmt, wd, ht);
+
        static Require _req(EXT_framebuffer_multisample);
        fmt = normalize_format(fmt);
        require_pixelformat(fmt);