swr: allow alphatest without blend or logicop

We need to compile a blend function when alphatest is enabled.

Reviewed-by: Bruce Cherniak <[email protected]>

1 files changed, 2 insertions, 1 deletions

diff --git a/src/gallium/drivers/swr/swr_state.cpp b/src/gallium/drivers/swr/swr_state.cpp
index 3e023225433..424bff2284f 100644
--- a/src/gallium/drivers/swr/swr_state.cpp
+++ b/src/gallium/drivers/swr/swr_state.cpp
@@ -1300,7 +1300,8 @@ swr_update_derived(struct pipe_context *pipe,
                    sizeof(compileState.blendState));
 
             if (compileState.blendState.blendEnable == false &&
-                compileState.blendState.logicOpEnable == false) {
+                compileState.blendState.logicOpEnable == false &&
+                ctx->depth_stencil->alpha.enabled == 0) {
                SwrSetBlendFunc(ctx->swrContext, target, NULL);
                continue;
             }