i965_drv_video: check batch buffer emitting

Signed-off-by: Xiang, Haihao <haihao.xiang@intel.com>

i965_drv_video/i965_media.c

@@ -177,7 +177,7 @@ i965_media_depth_buffer(VADriverContextP ctx)
     OUT_BATCH(ctx, 0);
     OUT_BATCH(ctx, 0);
     OUT_BATCH(ctx, 0);
-    ADVANCE_BATCH();
+    ADVANCE_BATCH(ctx);
 }
 
 static void

i965_drv_video/intel_batchbuffer.c

@@ -356,3 +356,47 @@ intel_batchbuffer_end_atomic_bcs(VADriverContextP ctx)
     intel_batchbuffer_end_atomic_helper(intel->batch_bcs);
 }
 
+static void
+intel_batchbuffer_begin_batch_helper(struct intel_batchbuffer *batch, int total)
+{
+    batch->emit_total = total * 4;
+    batch->emit_start = batch->ptr;
+}
+
+void
+intel_batchbuffer_begin_batch(VADriverContextP ctx, int total)
+{
+   struct intel_driver_data *intel = intel_driver_data(ctx);
+
+   intel_batchbuffer_begin_batch_helper(intel->batch, total);
+}
+
+void
+intel_batchbuffer_begin_batch_bcs(VADriverContextP ctx, int total)
+{
+   struct intel_driver_data *intel = intel_driver_data(ctx);
+
+   intel_batchbuffer_begin_batch_helper(intel->batch_bcs, total);
+}
+
+static void
+intel_batchbuffer_advance_batch_helper(struct intel_batchbuffer *batch)
+{
+    assert(batch->emit_total == (batch->ptr - batch->emit_start));
+}
+
+void
+intel_batchbuffer_advance_batch(VADriverContextP ctx)
+{
+   struct intel_driver_data *intel = intel_driver_data(ctx);
+
+   intel_batchbuffer_advance_batch_helper(intel->batch);
+}
+
+void
+intel_batchbuffer_advance_batch_bcs(VADriverContextP ctx)
+{
+   struct intel_driver_data *intel = intel_driver_data(ctx);
+
+   intel_batchbuffer_advance_batch_helper(intel->batch_bcs);
+}

i965_drv_video/intel_batchbuffer.h

@@ -18,6 +18,9 @@ struct intel_batchbuffer
     int atomic;
     int flag;
 
+    int emit_total;
+    unsigned char *emit_start;
+
     int (*run)(drm_intel_bo *bo, int used,
                drm_clip_rect_t *cliprects, int num_cliprects,
                int DR4, int ring_flag);
@@ -37,6 +40,9 @@ void intel_batchbuffer_start_atomic(VADriverContextP ctx, unsigned int size);
 void intel_batchbuffer_end_atomic(VADriverContextP ctx);
 Bool intel_batchbuffer_flush(VADriverContextP ctx);
 
+void intel_batchbuffer_begin_batch(VADriverContextP ctx, int total);
+void intel_batchbuffer_advance_batch(VADriverContextP ctx);
+
 void intel_batchbuffer_emit_dword_bcs(VADriverContextP ctx, unsigned int x);
 void intel_batchbuffer_emit_reloc_bcs(VADriverContextP ctx, dri_bo *bo, 
                                       uint32_t read_domains, uint32_t write_domains, 
@@ -48,8 +54,12 @@ void intel_batchbuffer_start_atomic_bcs(VADriverContextP ctx, unsigned int size)
 void intel_batchbuffer_end_atomic_bcs(VADriverContextP ctx);
 Bool intel_batchbuffer_flush_bcs(VADriverContextP ctx);
 
+void intel_batchbuffer_begin_batch_bcs(VADriverContextP ctx, int total);
+void intel_batchbuffer_advance_batch_bcs(VADriverContextP ctx);
+
 #define BEGIN_BATCH(ctx, n) do {                                \
    intel_batchbuffer_require_space(ctx, (n) * 4);               \
+   intel_batchbuffer_begin_batch(ctx, (n));                     \
 } while (0)
 
 #define OUT_BATCH(ctx, d) do {                                  \
@@ -63,10 +73,12 @@ Bool intel_batchbuffer_flush_bcs(VADriverContextP ctx);
 } while (0)
 
 #define ADVANCE_BATCH(ctx) do {                                         \
+    intel_batchbuffer_advance_batch(ctx);                               \
 } while (0)
 
 #define BEGIN_BCS_BATCH(ctx, n) do {                                    \
    intel_batchbuffer_require_space_bcs(ctx, (n) * 4);                   \
+   intel_batchbuffer_begin_batch_bcs(ctx, (n));                         \
 } while (0)
 
 #define OUT_BCS_BATCH(ctx, d) do {                                      \
@@ -80,6 +92,7 @@ Bool intel_batchbuffer_flush_bcs(VADriverContextP ctx);
 } while (0)
 
 #define ADVANCE_BCS_BATCH(ctx) do {                                     \
+    intel_batchbuffer_advance_batch_bcs(ctx);                           \
 } while (0)
 
 #endif /* _INTEL_BATCHBUFFER_H_ */