Fix to get glxgears display anything.

diff --git a/src/mesa/drivers/dri/r300/r300_state.c b/src/mesa/drivers/dri/r300/r300_state.c
index aa9eb5e28bdc25ce49d0c79160030dd13bdcbd9f..3941147b455e07f0fb6ef086f6401ee28546dd76 100644 (file)
--- a/src/mesa/drivers/dri/r300/r300_state.c
+++ b/src/mesa/drivers/dri/r300/r300_state.c
@@ -1459,7 +1459,11 @@ void r300_setup_rs_unit(GLcontext *ctx)
                        | (cur_reg /* count */ << R300_RS_CNTL_TC_CNT_SHIFT)
                        | R300_RS_CNTL_0_UNKNOWN_7
                        | R300_RS_CNTL_0_UNKNOWN_18;
-       r300->hw.rc.cmd[2] = (0xC0 | (cur_reg-1) /* index of highest */ );
+       
+       if(cur_reg == 0)
+               r300->hw.rc.cmd[2] = 0x0;
+       else
+               r300->hw.rc.cmd[2] = 0xC0 | (cur_reg-1); /* index of highest */
 #else
        for(i = 1; i <= 8; ++i)
                r300->hw.ri.cmd[i] = 0x00d10000;