From: Marek Olšák <[email protected]>
Fixes spec/EXT_texture_integer/fbo-blending.
---
src/gallium/drivers/radeonsi/si_state.c | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/src/gallium/drivers/radeonsi/si_state.c
b/src/gallium/drivers/radeonsi/si_state.c
index 7d412a4..04e0caf 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;
}
--
1.8.1.2
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