From 708e25142b0ce7b01028613481dc43f1e628786b Mon Sep 17 00:00:00 2001
From: Keith Whitwell <keith@tungstengraphics.com>
Date: Wed, 12 Jan 2005 17:20:29 +0000
Subject: Add flag to clear texture caches after texture upload.

---
 src/mesa/drivers/dri/unichrome/via_context.h |  1 +
 src/mesa/drivers/dri/unichrome/via_state.c   | 50 +++++++++-------------------
 src/mesa/drivers/dri/unichrome/via_texmem.c  |  1 +
 3 files changed, 18 insertions(+), 34 deletions(-)

(limited to 'src/mesa/drivers/dri/unichrome')

diff --git a/src/mesa/drivers/dri/unichrome/via_context.h b/src/mesa/drivers/dri/unichrome/via_context.h
index ae3b41506d..e6140e21d0 100644
--- a/src/mesa/drivers/dri/unichrome/via_context.h
+++ b/src/mesa/drivers/dri/unichrome/via_context.h
@@ -286,6 +286,7 @@ struct via_context_t {
    GLuint agpFullCount;
 
    GLboolean strictConformance;
+   GLboolean clearTexCache;
 
    /* Configuration cache
     */
diff --git a/src/mesa/drivers/dri/unichrome/via_state.c b/src/mesa/drivers/dri/unichrome/via_state.c
index 7aac5a2991..06ba531265 100644
--- a/src/mesa/drivers/dri/unichrome/via_state.c
+++ b/src/mesa/drivers/dri/unichrome/via_state.c
@@ -198,30 +198,24 @@ void viaEmitState(viaContextPtr vmesa)
 	    if (VIA_DEBUG) fprintf(stderr, "multi texture\n");
 	    nDummyValue = (HC_SubA_HTXSMD << 24) | (1 << 3);
                 
-	    /* Clear cache flag never set:
-	     */
-	    if (0) {
-	       OUT_RING( nDummyValue | HC_HTXCHCLR_MASK );
-	       OUT_RING( nDummyValue );
-	    }
-	    else {
-	       OUT_RING( nDummyValue );
-	       OUT_RING( nDummyValue );
-	    }
 	 }
 	 else {
 	    if (VIA_DEBUG) fprintf(stderr, "single texture\n");
 	    nDummyValue = (HC_SubA_HTXSMD << 24) | 0;
-                
-	    if (0) {
-	       OUT_RING( nDummyValue | HC_HTXCHCLR_MASK );
-	       OUT_RING( nDummyValue );
-	    }
-	    else {
-	       OUT_RING( nDummyValue );
-	       OUT_RING( nDummyValue );
-	    }
 	 }
+
+	 /* Clear cache flag never set:
+	  */
+	 if (vmesa->clearTexCache) {
+	    vmesa->clearTexCache = 0;
+	    OUT_RING( nDummyValue | HC_HTXCHCLR_MASK );
+	    OUT_RING( nDummyValue );
+	 }
+	 else {
+	    OUT_RING( nDummyValue );
+	    OUT_RING( nDummyValue );
+	 }
+
 	 OUT_RING( HC_HEADER2 );
 	 OUT_RING( HC_ParaType_NotTex << 16 );
 	 OUT_RING( (HC_SubA_HEnable << 24) | vmesa->regEnable );
@@ -1318,6 +1312,9 @@ static void viaChooseColorState(GLcontext *ctx)
         }
     }
 
+
+    vmesa->regEnable &= ~HC_HenDT_MASK;
+
     if (ctx->Color.ColorLogicOpEnabled) 
         vmesa->regHROP = ROP[ctx->Color.LogicOp & 0xF];
     else
@@ -1616,21 +1613,6 @@ void viaValidateState( GLcontext *ctx )
     else
         vmesa->regEnable &= ~HC_HenCS_MASK;
 
-    /* CLE266 gets this wrong at least: Pixels which fail alpha test
-     * are incorrectly writen to the z buffer.  This is a pretty big
-     * slowdown, it would be good to find out this wasn't necessary:
-     */
-#if 0
-    /* Disabling now, as the main problem was that the alpha reference
-     * value was calculated incorrectly, it's now fixed. */
-    if (vmesa->viaScreen->deviceID == VIA_CLE266) {
-       GLboolean fallback = (ctx->Color.AlphaEnabled && 
-			     ctx->Color.AlphaFunc != GL_ALWAYS &&
-			     ctx->Depth.Mask);
-       FALLBACK( vmesa, VIA_FALLBACK_ALPHATEST, fallback );
-    }
-#endif
-
     vmesa->newEmitState |= vmesa->newState;
     vmesa->newState = 0;
 }
diff --git a/src/mesa/drivers/dri/unichrome/via_texmem.c b/src/mesa/drivers/dri/unichrome/via_texmem.c
index 3d0ff920f3..78153f6817 100644
--- a/src/mesa/drivers/dri/unichrome/via_texmem.c
+++ b/src/mesa/drivers/dri/unichrome/via_texmem.c
@@ -446,6 +446,7 @@ void viaUploadTexImages(viaContextPtr vmesa, viaTextureObjectPtr t)
             viaUploadTexLevel(t, i);
 
     t->dirtyImages = 0;
+    vmesa->clearTexCache = 1;
 
     UNLOCK_HARDWARE(vmesa);
     if (VIA_DEBUG) fprintf(stderr, "%s - out\n", __FUNCTION__);    
-- 
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