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-rw-r--r--src/gallium/drivers/nv30/nv30_state_fb.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/src/gallium/drivers/nv30/nv30_state_fb.c b/src/gallium/drivers/nv30/nv30_state_fb.c
index 2729dcec7c..9b0266fba5 100644
--- a/src/gallium/drivers/nv30/nv30_state_fb.c
+++ b/src/gallium/drivers/nv30/nv30_state_fb.c
@@ -15,6 +15,7 @@ nv30_state_framebuffer_validate(struct nv30_context *nv30)
unsigned w = fb->width;
unsigned h = fb->height;
struct nv30_miptree *nv30mt;
+ int colour_bits = 32, zeta_bits = 32;
rt_enable = 0;
for (i = 0; i < fb->nr_cbufs; i++) {
@@ -54,6 +55,7 @@ nv30_state_framebuffer_validate(struct nv30_context *nv30)
break;
case PIPE_FORMAT_R5G6B5_UNORM:
rt_format |= NV34TCL_RT_FORMAT_COLOR_R5G6B5;
+ colour_bits = 16;
break;
default:
assert(0);
@@ -62,6 +64,7 @@ nv30_state_framebuffer_validate(struct nv30_context *nv30)
switch (zeta_format) {
case PIPE_FORMAT_Z16_UNORM:
rt_format |= NV34TCL_RT_FORMAT_ZETA_Z16;
+ zeta_bits = 16;
break;
case PIPE_FORMAT_Z24S8_UNORM:
case PIPE_FORMAT_Z24X8_UNORM:
@@ -72,6 +75,10 @@ nv30_state_framebuffer_validate(struct nv30_context *nv30)
assert(0);
}
+ if (colour_bits != zeta_bits) {
+ return FALSE;
+ }
+
if (rt_enable & NV34TCL_RT_ENABLE_COLOR0) {
uint32_t pitch = rt[0]->pitch;
if (zeta) {