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path: root/src/gallium/drivers/r300/r300_emit.c
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Diffstat (limited to 'src/gallium/drivers/r300/r300_emit.c')
-rw-r--r--src/gallium/drivers/r300/r300_emit.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/src/gallium/drivers/r300/r300_emit.c b/src/gallium/drivers/r300/r300_emit.c
index f1d32764fdb..9e813569e31 100644
--- a/src/gallium/drivers/r300/r300_emit.c
+++ b/src/gallium/drivers/r300/r300_emit.c
@@ -406,7 +406,14 @@ void r300_emit_fb_state(struct r300_context* r300, void* state)
R300_ZB_ZCACHE_CTLSTAT_ZC_FREE_FREE);
/* Set the number of colorbuffers. */
- OUT_CS_REG(R300_RB3D_CCTL, R300_RB3D_CCTL_NUM_MULTIWRITES(fb->nr_cbufs));
+ if (fb->nr_cbufs > 1) {
+ OUT_CS_REG(R300_RB3D_CCTL,
+ R300_RB3D_CCTL_NUM_MULTIWRITES(fb->nr_cbufs) |
+ R300_RB3D_CCTL_INDEPENDENT_COLOR_CHANNEL_MASK_ENABLE |
+ R300_RB3D_CCTL_INDEPENDENT_COLORFORMAT_ENABLE_ENABLE);
+ } else {
+ OUT_CS_REG(R300_RB3D_CCTL, 0x0);
+ }
/* Set up colorbuffers. */
for (i = 0; i < fb->nr_cbufs; i++) {