1 files changed, 37 insertions, 0 deletions
diff --git a/src/mesa/main/formats.c b/src/mesa/main/formats.c
index c98e90d1c3..e38c51772d 100644
--- a/src/mesa/main/formats.c
+++ b/src/mesa/main/formats.c
@@ -31,6 +31,43 @@
 
 
 /**
+ * Information about texture formats.
+ */
+struct gl_format_info
+{
+   gl_format Name;
+
+   /**
+    * Base format is one of GL_RGB, GL_RGBA, GL_ALPHA, GL_LUMINANCE,
+    * GL_LUMINANCE_ALPHA, GL_INTENSITY, GL_COLOR_INDEX, GL_DEPTH_COMPONENT.
+    */
+   GLenum BaseFormat;
+
+   /**
+    * Logical data type: one of  GL_UNSIGNED_NORMALIZED, GL_SIGNED_NORMALED,
+    * GL_UNSIGNED_INT, GL_SIGNED_INT, GL_FLOAT.
+    */
+   GLenum DataType;
+
+   GLubyte RedBits;
+   GLubyte GreenBits;
+   GLubyte BlueBits;
+   GLubyte AlphaBits;
+   GLubyte LuminanceBits;
+   GLubyte IntensityBits;
+   GLubyte IndexBits;
+   GLubyte DepthBits;
+   GLubyte StencilBits;
+
+   /**
+    * To describe compressed formats.  If not compressed, Width=Height=1.
+    */
+   GLubyte BlockWidth, BlockHeight;
+   GLubyte BytesPerBlock;
+};
+
+
+/**
  * Info about each format.
  * These must be in the same order as the MESA_FORMAT_* enums so that
  * we can do lookups without searching.