Add a get_default_sized_pixelformat function

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

diff --git a/source/renderbuffer.cpp b/source/renderbuffer.cpp
index 17d36846e696cdccb36d4b5a28e14d2e301b6025..9d19e08b814c7b6976236e61ba2bb32c36f59e6c 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;
@@ -38,6 +47,7 @@ void Renderbuffer::storage(PixelFormat fmt, unsigned wd, unsigned ht)
 void Renderbuffer::storage_multisample(unsigned samples, PixelFormat fmt, unsigned wd, unsigned ht)
 {
        static Require _req(EXT_framebuffer_multisample);
+       fmt = normalize_format(fmt);
        require_pixelformat(fmt);
 
        width = wd;