From 9715b7fab0757c86e1bb151f3dce0b324bcff692 Mon Sep 17 00:00:00 2001
From: marha <marha@users.sourceforge.net>
Date: Wed, 28 Dec 2011 23:31:50 +0100
Subject: xserver libX11 mesa xkeyboard-config git update 28 dec 2011

---
 mesalib/src/mesa/vbo/vbo_exec.h | 42 +++++++++++++++++++++++++++++++++++------
 1 file changed, 36 insertions(+), 6 deletions(-)

(limited to 'mesalib/src/mesa/vbo/vbo_exec.h')

diff --git a/mesalib/src/mesa/vbo/vbo_exec.h b/mesalib/src/mesa/vbo/vbo_exec.h
index cfed8e86d..f6ede99cd 100644
--- a/mesalib/src/mesa/vbo/vbo_exec.h
+++ b/mesalib/src/mesa/vbo/vbo_exec.h
@@ -78,12 +78,26 @@ struct vbo_exec_copied_vtx {
 };
 
 
+/** Used to signal when transitioning from one kind of drawing method
+ * to another.
+ */
+enum draw_method
+{
+   DRAW_NONE,          /**< Initial value only */
+   DRAW_BEGIN_END,
+   DRAW_DISPLAY_LIST,
+   DRAW_ARRAYS
+};
+
+
 struct vbo_exec_context
 {
    struct gl_context *ctx;   
    GLvertexformat vtxfmt;
    GLvertexformat vtxfmt_noop;
 
+   enum draw_method last_draw_method;
+
    struct {
       struct gl_buffer_object *bufferobj;
 
@@ -122,12 +136,6 @@ struct vbo_exec_context
    } eval;
 
    struct {
-      /* These just mirror the current arrayobj (todo: make arrayobj
-       * look like this and remove the mirror):
-       */
-      const struct gl_client_array *legacy_array[VERT_ATTRIB_FF_MAX];
-      const struct gl_client_array *generic_array[VERT_ATTRIB_GENERIC_MAX];
-
       /* Arrays and current values manipulated according to program
        * mode, etc.  These are the attributes as seen by vertex
        * programs:
@@ -164,6 +172,28 @@ void vbo_exec_array_destroy( struct vbo_exec_context *exec );
 void vbo_exec_vtx_init( struct vbo_exec_context *exec );
 void vbo_exec_vtx_destroy( struct vbo_exec_context *exec );
 
+
+/**
+ * This is called by glBegin, glDrawArrays and glDrawElements (and
+ * variations of those calls).  When we transition from immediate mode
+ * drawing to array drawing we need to invalidate the array state.
+ *
+ * glBegin/End builds vertex arrays.  Those arrays may look identical
+ * to glDrawArrays arrays except that the position of the elements may
+ * be different.  For example, arrays of (position3v, normal3f) vs. arrays
+ * of (normal3f, position3f).  So we need to make sure we notify drivers
+ * that arrays may be changing.
+ */
+static inline void
+vbo_draw_method(struct vbo_exec_context *exec, enum draw_method method)
+{
+   if (exec->last_draw_method != method) {
+      exec->ctx->NewState |= _NEW_ARRAY;
+      exec->last_draw_method = method;
+   }
+}
+
+
 #if FEATURE_beginend
 
 void vbo_exec_vtx_flush( struct vbo_exec_context *exec, GLboolean unmap );
-- 
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