mesa: add comments in _mesa_test_texobj_completeness() related to the spec

Reviewed-by: José Fonseca <jfonseca@vmware.com>
Reviewed-by: Eric Anholt <eric@anholt.net>

diff --git a/src/mesa/main/texobj.c b/src/mesa/main/texobj.c
index 3d89ca179ceca4d6605dd9fe9b8584f031042354..2f2223a132b1e2cd15864238f8e75375c0d3542a 100644 (file)
--- a/src/mesa/main/texobj.c
+++ b/src/mesa/main/texobj.c
@@ -497,9 +497,9 @@ _mesa_test_texobj_completeness( const struct gl_context *ctx,
 
    ASSERT(maxLevels > 0);
 
-   t->_MaxLevel = baseLevel + maxLog2;
+   t->_MaxLevel = baseLevel + maxLog2;  /* 'p' in the GL spec */
    t->_MaxLevel = MIN2(t->_MaxLevel, t->MaxLevel);
-   t->_MaxLevel = MIN2(t->_MaxLevel, maxLevels - 1);
+   t->_MaxLevel = MIN2(t->_MaxLevel, maxLevels - 1); /* 'q' in the GL spec */
 
    /* Compute _MaxLambda = q - b (see the 1.2 spec) used during mipmapping */
    t->_MaxLambda = (GLfloat) (t->_MaxLevel - baseLevel);