i915tex: Triple buffering support, only effective with page flipping so far.

Pending flips are tracked per renderbuffer and the colour renderbuffer
attachments of window framebuffer objects are rotated on flips to avoid
stalling the pipeline for pending flips unnecessarily.

1 files changed, 2 insertions, 0 deletions

diff --git a/src/mesa/drivers/dri/i915tex/intel_screen.h b/src/mesa/drivers/dri/i915tex/intel_screen.h
index 17698773f3..05e2f1f2ea 100644
--- a/src/mesa/drivers/dri/i915tex/intel_screen.h
+++ b/src/mesa/drivers/dri/i915tex/intel_screen.h
@@ -51,12 +51,14 @@ typedef struct
 {
    intelRegion front;
    intelRegion back;
+   intelRegion third;
    intelRegion rotated;
    intelRegion depth;
    intelRegion tex;
 
    struct intel_region *front_region;
    struct intel_region *back_region;
+   struct intel_region *third_region;
    struct intel_region *depth_region;
    struct intel_region *rotated_region;