Add backend interface surface_alloc_bo

if surface_alloc_bo backend fuction exist,
Use surface alloc bo function instead bo alloc when tbm surface is created

Change-Id: Id8b68d37067ab993d59bee4a866d79283c83f741
Signed-off-by: Changyeon Lee <cyeon.lee@samsung.com>

2 files changed, 73 insertions, 12 deletions

diff --git a/src/tbm_bufmgr_backend.h b/src/tbm_bufmgr_backend.h
index 1c967ac..839ec99 100644
--- a/src/tbm_bufmgr_backend.h
+++ b/src/tbm_bufmgr_backend.h
@@ -226,6 +226,18 @@ struct _tbm_bufmgr_backend {
 	*/
 	int (*bufmgr_bind_native_display)(tbm_bufmgr bufmgr, void *NativeDisplay);
 
+	/**
+	* @brief allocate the buffer object for tbm surface
+	* @param[in] bo : the buffer object
+	* @param[in] width : the width of surface
+	* @param[in] height : the height of surface
+	* @param[in] format : the format of surface
+	* @param[in] flags : the flags of memory type
+	* @param[in] idx : the index of bo in surface
+	* @return pointer of the bo private.
+	*/
+	void * (*surface_bo_alloc)(tbm_bo bo, int width, int height, int format, int flags, int bo_idx);
+
 	/* Padding for future extension */
 	void (*reserved1)(void);
 	void (*reserved2)(void);
diff --git a/src/tbm_surface_internal.c b/src/tbm_surface_internal.c
index bc01935..796add8 100644
--- a/src/tbm_surface_internal.c
+++ b/src/tbm_surface_internal.c
@@ -560,24 +560,56 @@ tbm_surface_internal_create_with_flags(int width, int height,
 			if (surf->planes_bo_idx[j] == i)
 				bo_size += surf->info.planes[j].size;
 		}
-		surf->bos[i] = tbm_bo_alloc(mgr, bo_size, flags);
-		if (!surf->bos[i]) {
-			for (j = 0; j < i; j++) {
-				if (surf->bos[j])
-					tbm_bo_unref(surf->bos[j]);
+
+		if (mgr->backend->surface_bo_alloc) {
+
+			tbm_bo bo = NULL;
+			void *bo_priv = NULL;
+
+			bo = calloc(1, sizeof(struct _tbm_bo));
+			if (!bo) {
+				TBM_LOG("[libtbm:%d] "
+					"error %s:%d fail to alloc bo struct\n",
+					getpid(), __func__, __LINE__);
+				goto alloc_fail;
 			}
 
-			free(surf);
-			surf = NULL;
+			bo->bufmgr = surf->bufmgr;
 
-			if (LIST_IS_EMPTY(&mgr->surf_list)) {
-				LIST_DELINIT(&mgr->surf_list);
-				_deinit_surface_bufmgr();
+			pthread_mutex_lock(&surf->bufmgr->lock);
+
+			bo_priv = mgr->backend->surface_bo_alloc (bo, width, height, format, flags, i);
+			if (!bo_priv) {
+				TBM_LOG("[libtbm:%d] "
+					"error %s:%d fail to alloc bo priv\n",
+					getpid(), __func__, __LINE__);
+				free(bo);
+				pthread_mutex_unlock(&surf->bufmgr->lock);
 			}
 
-			_tbm_surface_mutex_unlock();
-			return NULL;
+			bo->ref_cnt = 1;
+			bo->flags = flags;
+			bo->priv = bo_priv;
+
+			LIST_INITHEAD(&bo->user_data_list);
+
+			LIST_ADD(&bo->item_link, &surf->bufmgr->bo_list);
+
+			pthread_mutex_unlock(&surf->bufmgr->lock);
+
+			surf->bos[i] = bo;
+
+		} else {
+			surf->bos[i] = tbm_bo_alloc(mgr, bo_size, flags);
+		}
+
+		if (!surf->bos[i]) {
+			TBM_LOG("[libtbm:%d] "
+				"error %s:%d fail to alloc bo\n",
+				getpid(), __func__, __LINE__);
+			goto alloc_fail;
 		}
+
 		_tbm_bo_set_surface(surf->bos[i], surf);
 
 	}
@@ -589,6 +621,23 @@ tbm_surface_internal_create_with_flags(int width, int height,
 	_tbm_surface_mutex_unlock();
 
 	return surf;
+
+alloc_fail:
+	for (j = 0; j < i; j++) {
+		if (surf->bos[j])
+			tbm_bo_unref(surf->bos[j]);
+	}
+
+	free(surf);
+	surf = NULL;
+
+	if (LIST_IS_EMPTY(&mgr->surf_list)) {
+		LIST_DELINIT(&mgr->surf_list);
+		_deinit_surface_bufmgr();
+	}
+
+	_tbm_surface_mutex_unlock();
+	return NULL;
 }
 
 tbm_surface_h