Added a utility function to determine if a dxgi format is compressed.

TRAC #13332

Signed-off-by: Jamie Madill
Signed-off-by: Shannon Woods
Author: Geoff Lang

git-svn-id: https://angleproject.googlecode.com/svn/branches/dx11proto@1969 736b8ea6-26fd-11df-bfd4-992fa37f6226
diff --git a/src/libGLESv2/renderer/renderer11_utils.h b/src/libGLESv2/renderer/renderer11_utils.h
index 8036378..1bc48c1 100644
--- a/src/libGLESv2/renderer/renderer11_utils.h
+++ b/src/libGLESv2/renderer/renderer11_utils.h
@@ -66,6 +66,7 @@
 size_t ComputePixelSizeBits(DXGI_FORMAT format);
 size_t ComputeBlockSizeBits(DXGI_FORMAT format);
 
+bool IsCompressed(DXGI_FORMAT format);
 unsigned int GetTextureFormatDimensionAlignment(DXGI_FORMAT format);
 
 bool IsDepthStencilFormat(DXGI_FORMAT format);