X-Git-Url: http://git.osdn.net/view?p=android-x86%2Fexternal-minigbm.git;a=blobdiff_plain;f=gbm.h;h=ce05ce370030e6ad0fc67ec68e5757ce0768a2c1;hp=a58aadbb1d91586e6775d353aa274ceae66a890f;hb=0d41d268684a339ae76309b193610bdcbdbbbe69;hpb=e0807b1eaaaa44b81bcb0aa610480cbc3beecc52

diff --git a/gbm.h b/gbm.h
index a58aadb..ce05ce3 100644
--- a/gbm.h
+++ b/gbm.h
@@ -236,7 +236,8 @@ enum gbm_bo_flags {
     * Buffer is guaranteed to be laid out linearly in memory. That is, the
     * buffer is laid out as an array with 'height' blocks, each block with
     * length 'stride'. Each stride is in the same order as the rows of the
-    * buffer.
+    * buffer. This is intended to be used with buffers that will be accessed
+    * via dma-buf mmap().
     */
    GBM_BO_USE_LINEAR    = (1 << 4),
    /**
@@ -255,6 +256,19 @@ enum gbm_bo_flags {
     * Buffer inaccessible to unprivileged users.
     */
    GBM_BO_USE_PROTECTED = (1 << 8),
+   /**
+    * These flags specify the frequency of software access. These flags do not
+    * guarantee the buffer is linear, but do guarantee gbm_bo_map(..) will
+    * present a linear view.
+    */
+   GBM_BO_USE_SW_READ_OFTEN = (1 << 9),
+   GBM_BO_USE_SW_READ_RARELY = (1 << 10),
+   GBM_BO_USE_SW_WRITE_OFTEN = (1 << 11),
+   GBM_BO_USE_SW_WRITE_RARELY = (1 << 12),
+   /**
+    * The buffer will be written by a video decode accelerator.
+    */
+   GBM_BO_USE_HW_VIDEO_DECODER = (1 << 13),
 };
 
 int