From d4b672425339307d39b31c4733273cf994f51e05 Mon Sep 17 00:00:00 2001
From: Dave Airlie <airliedfreedesktop.org>
Date: Wed, 10 Mar 2004 03:43:15 +0000
Subject: [PATCH] back port span changes from i810, these have been in my tree
 for a while seem fine ..

---
 src/mesa/drivers/dri/i810/i810span.c | 33 +++++++++++++++++++---------
 src/mesa/drivers/dri/i810/i810span.h |  3 +++
 2 files changed, 26 insertions(+), 10 deletions(-)

diff --git a/src/mesa/drivers/dri/i810/i810span.c b/src/mesa/drivers/dri/i810/i810span.c
index dc8f4d1cb95..53bd15162f8 100644
--- a/src/mesa/drivers/dri/i810/i810span.c
+++ b/src/mesa/drivers/dri/i810/i810span.c
@@ -14,6 +14,7 @@
 #define DBG 0
 
 #define LOCAL_VARS					\
+   i810ContextPtr imesa = I810_CONTEXT(ctx);	        \
    __DRIdrawablePrivate *dPriv = imesa->driDrawable;	\
    i810ScreenPrivate *i810Screen = imesa->i810Screen;	\
    GLuint pitch = i810Screen->backPitch;		\
@@ -28,6 +29,7 @@
    (void) read_buf; (void) buf; (void) p
 
 #define LOCAL_DEPTH_VARS				\
+   i810ContextPtr imesa = I810_CONTEXT(ctx);	        \
    __DRIdrawablePrivate *dPriv = imesa->driDrawable;	\
    i810ScreenPrivate *i810Screen = imesa->i810Screen;	\
    GLuint pitch = i810Screen->backPitch;		\
@@ -55,11 +57,7 @@
 
 #define Y_FLIP(_y) (height - _y - 1)
 
-#define HW_LOCK()				\
-   i810ContextPtr imesa = I810_CONTEXT(ctx);	\
-   I810_FIREVERTICES(imesa);			\
-   i810DmaFinish(imesa);			\
-   LOCK_HARDWARE_QUIESCENT(imesa);
+#define HW_LOCK()
 
 #define HW_CLIPLOOP()						\
   do {								\
@@ -76,11 +74,7 @@
     }						\
   } while (0)
 
-#define HW_UNLOCK()				\
-    UNLOCK_HARDWARE(imesa);
-
-
-
+#define HW_UNLOCK()
 
 /* 16 bit, 565 rgb color spanline and pixel functions
  */
@@ -148,6 +142,22 @@ static void i810SetBuffer(GLcontext *ctx, GLframebuffer *buffer,
    imesa->drawMap = imesa->readMap;
 }
 
+/* Move locking out to get reasonable span performance.
+ */
+void i810SpanRenderStart( GLcontext *ctx )
+{
+   i810ContextPtr imesa = I810_CONTEXT(ctx);
+   I810_FIREVERTICES(imesa);
+   LOCK_HARDWARE(imesa);
+   i810RegetLockQuiescent( imesa );
+}
+
+void i810SpanRenderFinish( GLcontext *ctx )
+{
+   i810ContextPtr imesa = I810_CONTEXT( ctx );
+   _swrast_flush( ctx );
+   UNLOCK_HARDWARE( imesa );
+}
 
 void i810InitSpanFuncs( GLcontext *ctx )
 {
@@ -167,4 +177,7 @@ void i810InitSpanFuncs( GLcontext *ctx )
    swdd->WriteDepthSpan = i810WriteDepthSpan_16;
    swdd->ReadDepthPixels = i810ReadDepthPixels_16;
    swdd->WriteDepthPixels = i810WriteDepthPixels_16;
+
+   swdd->SpanRenderStart = i810SpanRenderStart;
+   swdd->SpanRenderFinish = i810SpanRenderFinish; 
 }
diff --git a/src/mesa/drivers/dri/i810/i810span.h b/src/mesa/drivers/dri/i810/i810span.h
index a7b809bf18b..545bce46a63 100644
--- a/src/mesa/drivers/dri/i810/i810span.h
+++ b/src/mesa/drivers/dri/i810/i810span.h
@@ -3,4 +3,7 @@
 
 extern void i810InitSpanFuncs( GLcontext *ctx );
 
+extern void i810SpanRenderFinish( GLcontext *ctx );
+extern void i810SpanRenderStart( GLcontext *ctx );
+
 #endif
-- 
2.30.2