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-rw-r--r--src/gallium/drivers/r300/r300_emit.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/gallium/drivers/r300/r300_emit.c b/src/gallium/drivers/r300/r300_emit.c
index e1a3714aac..f5e9f73837 100644
--- a/src/gallium/drivers/r300/r300_emit.c
+++ b/src/gallium/drivers/r300/r300_emit.c
@@ -380,7 +380,8 @@ void r300_emit_fb_state(struct r300_context* r300, unsigned size, void* state)
if (r300->screen->caps.is_r500) {
rb3d_cctl = R300_RB3D_CCTL_INDEPENDENT_COLORFORMAT_ENABLE_ENABLE;
}
- if (r300_fragment_shader_writes_all(r300_fs(r300))) {
+ if (fb->nr_cbufs &&
+ r300_fragment_shader_writes_all(r300_fs(r300))) {
rb3d_cctl |= R300_RB3D_CCTL_NUM_MULTIWRITES(fb->nr_cbufs);
}