commit c67e87f49e2c1a07f014b6c3445c3d6078499ff5
author Terence Hampson <thampson@codeaurora.org> Thu Jul 04 15:45:47 2013 -0400
committer Terence Hampson <thampson@codeaurora.org> Fri Jul 05 17:05:22 2013 -0400
tree 1b03bc4ab858474159d13e5de41cb9627d328690
parent 34e8b811741eca50a0a34f4fed0de3a1e217131d

copybit: call blit ioctl before freeing intermediate buffer

Pass in buffer handle before it is freed to prevent blit operation
from failing while importing buffer.

Change-Id: I4a944e7b2c0f6e19b55ed5602eda49d14d5e78f0

libcopybit/copybit.cpp

diff --git a/libcopybit/copybit.cpp b/libcopybit/copybit.cpp
index 23b336c..c945665 100644
--- a/libcopybit/copybit.cpp
+++ b/libcopybit/copybit.cpp
@@ -516,12 +516,24 @@
                 list->count = 0;
             }
         }
+        if(yv12_handle) {
+            //Before freeing the buffer we need buffer passed through blit call
+            if (list->count != 0) {
+                status = msm_copybit(ctx, list);
+                if (ctx->relFence != -1) {
+                    ctx->sync.acq_fen_fd_cnt = 1;
+                    ctx->sync.acq_fen_fd[0] = ctx->relFence;
+                } else {
+                    ctx->sync.acq_fen_fd_cnt = 0;
+                }
+                list->count = 0;
+            }
+            free_buffer(yv12_handle);
+        }
     } else {
         ALOGE ("%s : Invalid COPYBIT context", __FUNCTION__);
         status = -EINVAL;
     }
-    if(yv12_handle)
-        free_buffer(yv12_handle);
     return status;
 }
 
@@ -567,9 +579,9 @@
         if (ret < 0)
             ALOGE("%s: Blit call failed", __FUNCTION__);
         list->count = 0;
-        ctx->sync.acq_fen_fd_cnt = 0;
     }
     *fd = ctx->relFence;
+    ctx->sync.acq_fen_fd_cnt = 0;
     ctx->relFence = -1;
     return ret;
 }