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-rw-r--r--src/mesa/swrast/s_accum.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/mesa/swrast/s_accum.c b/src/mesa/swrast/s_accum.c
index d20622e671a..55ba8310590 100644
--- a/src/mesa/swrast/s_accum.c
+++ b/src/mesa/swrast/s_accum.c
@@ -70,6 +70,8 @@ _swrast_alloc_accum_buffer( GLframebuffer *buffer )
GET_CURRENT_CONTEXT(ctx);
GLint n;
+ ASSERT(buffer->UseSoftwareAccumBuffer);
+
if (buffer->Accum) {
MESA_PBUFFER_FREE( buffer->Accum );
buffer->Accum = NULL;