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Diffstat (limited to 'src/gallium/drivers/r300/r300_state.c')
-rw-r--r--src/gallium/drivers/r300/r300_state.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/src/gallium/drivers/r300/r300_state.c b/src/gallium/drivers/r300/r300_state.c
index 3cef285dee8..d8533ac168e 100644
--- a/src/gallium/drivers/r300/r300_state.c
+++ b/src/gallium/drivers/r300/r300_state.c
@@ -190,6 +190,7 @@ static void*
r300_create_dsa_state(struct pipe_context* pipe,
const struct pipe_depth_stencil_alpha_state* state)
{
+ struct r300_context* r300 = r300_context(pipe);
struct r300_dsa_state* dsa = CALLOC_STRUCT(r300_dsa_state);
/* Depth test setup. */
@@ -247,11 +248,15 @@ static void*
R300_FG_ALPHA_FUNC_ENABLE;
dsa->alpha_reference = CLAMP(state->alpha.ref_value * 1023.0f,
0, 1023);
- } else {
- /* XXX need to fix this to be dynamically set
- dsa->z_buffer_top = R300_ZTOP_ENABLE; */
}
+ dsa->z_buffer_top = R300_ZTOP_ENABLE;
+ /* XXX TODO: add frag prog rules for ztop disable */
+ if (state->alpha.enabled && state->alpha.func != PIPE_FUNC_ALWAYS)
+ dsa->z_buffer_top = R300_ZTOP_DISABLE;
+ if (!is_empty_list(&r300->query_list))
+ dsa->z_buffer_top = R300_ZTOP_DISABLE;
+
return (void*)dsa;
}