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

[libs/gl.git] / source / renderbuffer.cpp

diff --git a/source/renderbuffer.cpp b/source/renderbuffer.cpp
index 17d36846e696cdccb36d4b5a28e14d2e301b6025..f146a915d64d27c213ef42b192068e4c8d14cd56 100644 (file)
--- a/source/renderbuffer.cpp
+++ b/source/renderbuffer.cpp
@@ -21,8 +21,17 @@ Renderbuffer::~Renderbuffer()
        glDeleteRenderbuffers(1, &id);
 }
 
+PixelFormat Renderbuffer::normalize_format(PixelFormat fmt)
+{
+       if(!get_component_size(fmt) && OES_required_internalformat)
+               return get_default_sized_pixelformat(fmt);
+
+       return fmt;
+}
+
 void Renderbuffer::storage(PixelFormat fmt, unsigned wd, unsigned ht)
 {
+       fmt = normalize_format(fmt);
        require_pixelformat(fmt);
        width = wd;
        height = ht;
@@ -37,7 +46,11 @@ 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);
 
        width = wd;