Performance improvements, support userspace simulatorsHEADmaster

1 files changed, 7 insertions, 2 deletions

diff --git a/src/mesa/swrast/swrast.h b/src/mesa/swrast/swrast.h
index 7fb0d2a..a3cd9e0 100644
--- a/src/mesa/swrast/swrast.h
+++ b/src/mesa/swrast/swrast.h
@@ -62,14 +62,19 @@
  */
 typedef struct {
    /** win[0], win[1] are the screen-coords of SWvertex. win[2] is the
-    * z-coord. what is win[3]? */
+    * z-coord. what is win[3]?
+    *
+    * The texcoord array (most of the struct) trails so a
+    * fixed-function vertex's hot fields share fewer cache lines.  All
+    * access is by field name, no code depends on member order.
+    */
    GLfloat win[4];
-   GLfloat texcoord[MAX_TEXTURE_COORD_UNITS][4];
    GLchan color[4];
    GLchan specular[4];
    GLfloat fog;
    GLfloat index;
    GLfloat pointSize;
+   GLfloat texcoord[MAX_TEXTURE_COORD_UNITS][4];
 } SWvertex;