From 5e310e9f8300a357d6bdaf098c72098518b564f3 Mon Sep 17 00:00:00 2001
From: Paul Berry <stereotype441@gmail.com>
Date: Wed, 20 Jun 2012 12:31:46 -0700
Subject: mesa: Add UsesDFdy to struct gl_fragment_program.

The i965 back-end needs to compile dFdy() differently for FBOs and
window system framebuffers, because Y coordinates are flipped between
the two (see commit 82d2596: i965: Compute dFdy() correctly for FBOs).
This boolean will allow it to avoid unnecessarily recompiling shaders
that don't use dFdy().

Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
---
 src/mesa/main/mtypes.h | 1 +
 1 file changed, 1 insertion(+)

(limited to 'src/mesa/main')

diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index 1f74e6a8308..4769e106631 100644
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -2011,6 +2011,7 @@ struct gl_fragment_program
 {
    struct gl_program Base;   /**< base class */
    GLboolean UsesKill;          /**< shader uses KIL instruction */
+   GLboolean UsesDFdy;          /**< shader uses DDY instruction */
    GLboolean OriginUpperLeft;
    GLboolean PixelCenterInteger;
    enum gl_frag_depth_layout FragDepthLayout;
-- 
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