r200: Fix swtnl fallback to flush pending rendering before transition.

Flush after transition would emit wrong state that could cause
wrong state emited for pending rendering operation.

Fixes wan once from extrement tuxracer that is using per vertex
materials.

1 files changed, 14 insertions, 4 deletions

diff --git a/src/mesa/drivers/dri/r200/r200_tcl.c b/src/mesa/drivers/dri/r200/r200_tcl.c
index 159434427fa..46dce98871f 100644
--- a/src/mesa/drivers/dri/r200/r200_tcl.c
+++ b/src/mesa/drivers/dri/r200/r200_tcl.c
@@ -692,20 +692,30 @@ void r200TclFallback( GLcontext *ctx, GLuint bit, GLboolean mode )
 	GLuint oldfallback = rmesa->radeon.TclFallback;
 
 	if (mode) {
-		rmesa->radeon.TclFallback |= bit;
 		if (oldfallback == 0) {
+			/* We have to flush before transition */
+			if ( rmesa->radeon.dma.flush )
+				rmesa->radeon.dma.flush( rmesa->radeon.glCtx );
+
 			if (R200_DEBUG & RADEON_FALLBACKS)
 				fprintf(stderr, "R200 begin tcl fallback %s\n",
 						getFallbackString( bit ));
+			rmesa->radeon.TclFallback |= bit;
 			transition_to_swtnl( ctx );
-		}
+		} else
+			rmesa->radeon.TclFallback |= bit;
 	} else {
-		rmesa->radeon.TclFallback &= ~bit;
 		if (oldfallback == bit) {
+			/* We have to flush before transition */
+			if ( rmesa->radeon.dma.flush )
+				rmesa->radeon.dma.flush( rmesa->radeon.glCtx );
+
 			if (R200_DEBUG & RADEON_FALLBACKS)
 				fprintf(stderr, "R200 end tcl fallback %s\n",
 						getFallbackString( bit ));
+			rmesa->radeon.TclFallback &= ~bit;
 			transition_to_hwtnl( ctx );
-		}
+		} else
+			rmesa->radeon.TclFallback &= ~bit;
 	}
 }