Mesa (master): r300g: cleanup clip state emission

[Marek Olšák]

Module: Mesa
Branch: master
Commit: 5725738ef6a4b5110064d4e2e0ce4f7609e875e4
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=5725738ef6a4b5110064d4e2e0ce4f7609e875e4

Author: Marek Olšák <maraeo at gmail.com>
Date:   Wed Jul 21 20:41:04 2010 +0200

r300g: cleanup clip state emission

---

 src/gallium/drivers/r300/r300_state.c |   16 ++++++++++------
 1 files changed, 10 insertions(+), 6 deletions(-)

diff --git a/src/gallium/drivers/r300/r300_state.c b/src/gallium/drivers/r300/r300_state.c
index 8d849cd..0bbc022 100644
--- a/src/gallium/drivers/r300/r300_state.c
+++ b/src/gallium/drivers/r300/r300_state.c
@@ -429,12 +429,16 @@ static void r300_set_clip_state(struct pipe_context* pipe,
     clip->clip = *state;
 
     if (r300->screen->caps.has_tcl) {
-        BEGIN_CB(clip->cb, 29);
-        OUT_CB_REG(R300_VAP_PVS_VECTOR_INDX_REG,
-                (r300->screen->caps.is_r500 ?
-                 R500_PVS_UCP_START : R300_PVS_UCP_START));
-        OUT_CB_ONE_REG(R300_VAP_PVS_UPLOAD_DATA, 6 * 4);
-        OUT_CB_TABLE(state->ucp, 6 * 4);
+        r300->clip_state.size = 2 + !!state->nr * 3 + state->nr * 4;
+
+        BEGIN_CB(clip->cb, r300->clip_state.size);
+        if (state->nr) {
+           OUT_CB_REG(R300_VAP_PVS_VECTOR_INDX_REG,
+                   (r300->screen->caps.is_r500 ?
+                    R500_PVS_UCP_START : R300_PVS_UCP_START));
+           OUT_CB_ONE_REG(R300_VAP_PVS_UPLOAD_DATA, state->nr * 4);
+           OUT_CB_TABLE(state->ucp, state->nr * 4);
+        }
         OUT_CB_REG(R300_VAP_CLIP_CNTL, ((1 << state->nr) - 1) |
                 R300_PS_UCP_MODE_CLIP_AS_TRIFAN);
         END_CB;