Fixes piglit test "spec/!OpenGL 1.0/gl-1.0-front-invalidate-back"
---
This patch depends on "[PATCH 2/2] intel: flush fake front buffer more
robustly.", which was sent to mesa-dev yesterday and is still awaiting
review.
src/mesa/drivers/dri/intel/intel_context.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/src/mesa/drivers/dri/intel/intel_context.c
b/src/mesa/drivers/dri/intel/intel_context.c
index 0afd417..4508e49 100644
--- a/src/mesa/drivers/dri/intel/intel_context.c
+++ b/src/mesa/drivers/dri/intel/intel_context.c
@@ -1079,6 +1079,15 @@ intel_query_dri2_buffers(struct intel_context *intel,
attachments[i++] = __DRI_BUFFER_FRONT_LEFT;
attachments[i++] = intel_bits_per_pixel(front_rb);
+ } else if (front_rb && intel->front_buffer_dirty) {
+ /* We have pending front buffer rendering, but we aren't querying for a
+ * front buffer. If the front buffer we have is a fake front buffer,
+ * the X server is going to throw it away when it processes the query.
+ * So before doing the query, make sure all the pending drawing has
+ * landed in the real front buffer.
+ */
+ intel_flush(&intel->ctx);
+ intel_flush_front(&intel->ctx);
}
if (back_rb) {
--
1.8.3
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