[Mesa-dev] [PATCH] mesa: Document ati_fragment_shader::cur_pass

[Ian Romanick]

From: Ian Romanick <ian.d.romanick at intel.com>

Signed-off-by: Ian Romanick <ian.d.romanick at intel.com>
---
Having this information would have helped me review recent patches from
Miklós...

 src/mesa/main/mtypes.h | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index 2f21633..e753438 100644
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -2390,8 +2390,16 @@ struct ati_fragment_shader
    GLubyte numArithInstr[2];
    GLubyte regsAssigned[2];
    GLubyte NumPasses;         /**< 1 or 2 */
-   GLubyte cur_pass;
+
+   /**
+    * cur_pass distinguishes between the texture and arithmetic phases.  There
+    * are a maximum of two passes, and each pass has a texture phase followed
+    * by an arithmetic phase.  Hence cur_pass being 0 means currently texture
+    * instructions are specified for the first pass. cur_pass 1 arithmetic for
+    * the first pass. cur_pass 2/3 correspond to the second pass accordingly.
+    */
    GLubyte last_optype;
+
    GLboolean interpinp1;
    GLboolean isValid;
    GLuint swizzlerq;
-- 
2.9.5