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-rw-r--r--src/gallium/drivers/radeonsi/si_state.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/src/gallium/drivers/radeonsi/si_state.c b/src/gallium/drivers/radeonsi/si_state.c
index 8f7edafcf35..b5d625aa7a3 100644
--- a/src/gallium/drivers/radeonsi/si_state.c
+++ b/src/gallium/drivers/radeonsi/si_state.c
@@ -2352,7 +2352,16 @@ static INLINE void si_shader_selector_key(struct pipe_context *ctx,
}
if (rctx->queued.named.dsa) {
key->ps.alpha_func = rctx->queued.named.dsa->alpha_func;
- key->ps.alpha_ref = rctx->queued.named.dsa->alpha_ref;
+
+ /* Alpha-test should be disabled if colorbuffer 0 is integer. */
+ if (rctx->framebuffer.nr_cbufs &&
+ rctx->framebuffer.cbufs[0] &&
+ util_format_is_pure_integer(rctx->framebuffer.cbufs[0]->texture->format))
+ key->ps.alpha_func = PIPE_FUNC_ALWAYS;
+
+ if (key->ps.alpha_func != PIPE_FUNC_ALWAYS &&
+ key->ps.alpha_func != PIPE_FUNC_NEVER)
+ key->ps.alpha_ref = rctx->queued.named.dsa->alpha_ref;
} else {
key->ps.alpha_func = PIPE_FUNC_ALWAYS;
}