Mesa (master): r600: don't draw when num indices is 0

[Alex Deucher]

Module: Mesa
Branch: master
Commit: 7e6819f8430e77012d6cd9278cabaf1d4238117a
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=7e6819f8430e77012d6cd9278cabaf1d4238117a

Author: Alex Deucher <alexdeucher at gmail.com>
Date:   Mon Jul 27 02:25:24 2009 -0400

r600: don't draw when num indices is 0

fixes engine demo

---

 src/mesa/drivers/dri/r600/r700_render.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/src/mesa/drivers/dri/r600/r700_render.c b/src/mesa/drivers/dri/r600/r700_render.c
index 0a5e041..5a2bf84 100644
--- a/src/mesa/drivers/dri/r600/r700_render.c
+++ b/src/mesa/drivers/dri/r600/r700_render.c
@@ -342,6 +342,9 @@ static GLboolean r700RunRender(GLcontext * ctx,
         unsigned int VGT_PRIMITIVE_TYPE = 0;
         unsigned int VGT_NUM_INDICES    = 0;
 
+	if (numIndices < 1)
+		continue;
+
         numEntires =   3 /* VGT_PRIMITIVE_TYPE */
 		     + 2 /* VGT_INDEX_TYPE */
 		     + 2 /* NUM_INSTANCES */