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-rw-r--r--src/gallium/drivers/swr/swr_state.cpp6
1 files changed, 2 insertions, 4 deletions
diff --git a/src/gallium/drivers/swr/swr_state.cpp b/src/gallium/drivers/swr/swr_state.cpp
index b0cbc21964e..41193795ce1 100644
--- a/src/gallium/drivers/swr/swr_state.cpp
+++ b/src/gallium/drivers/swr/swr_state.cpp
@@ -1501,10 +1501,8 @@ swr_update_derived(struct pipe_context *pipe,
(ctx->rasterizer->sprite_coord_enable ? 1 : 0);
for (unsigned i = 0; i < backendState.numAttributes; i++)
backendState.numComponents[i] = 4;
- backendState.constantInterpolationMask =
- ctx->rasterizer->flatshade ?
- ctx->fs->flatConstantMask :
- ctx->fs->constantMask;
+ backendState.constantInterpolationMask = ctx->fs->constantMask |
+ (ctx->rasterizer->flatshade ? ctx->fs->flatConstantMask : 0);
backendState.pointSpriteTexCoordMask = ctx->fs->pointSpriteMask;
SwrSetBackendState(ctx->swrContext, &backendState);