From: Sangjin Lee <lsj119@samsung.com>
Date: Fri, 10 Jun 2016 10:38:38 +0000 (+0900)
Subject: tbm_surface_queue: add a function for get buffers
X-Git-Tag: submit/tizen/20160614.113418~1
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=refs%2Fchanges%2F12%2F74012%2F4;p=platform%2Fcore%2Fuifw%2Flibtbm.git

tbm_surface_queue: add a function for get buffers

This function just query tbm_surfaces in a tbm_surface_queue.

Change-Id: I0199af904a9a0feccc182d4d433baf455065087c
---

diff --git a/src/tbm_surface_queue.c b/src/tbm_surface_queue.c
index cf6a1fe..cfb3f1a 100644
--- a/src/tbm_surface_queue.c
+++ b/src/tbm_surface_queue.c
@@ -955,6 +955,33 @@ tbm_surface_queue_flush(tbm_surface_queue_h surface_queue)
 	return TBM_SURFACE_QUEUE_ERROR_NONE;
 }
 
+tbm_surface_queue_error_e
+tbm_surface_queue_get_surfaces(tbm_surface_queue_h surface_queue,
+			tbm_surface_h *surfaces, int *num)
+{
+	TBM_RETURN_VAL_IF_FAIL(surface_queue != NULL,
+			       TBM_SURFACE_QUEUE_ERROR_INVALID_QUEUE);
+	TBM_RETURN_VAL_IF_FAIL(num != NULL,
+			       TBM_SURFACE_QUEUE_ERROR_INVALID_PARAMETER);
+
+	queue_node *node = NULL;
+	queue_node *tmp = NULL;
+
+	pthread_mutex_lock(&surface_queue->lock);
+
+	*num = 0;
+	LIST_FOR_EACH_ENTRY_SAFE(node, tmp, &surface_queue->list, link) {
+		if (surfaces) {
+			surfaces[*num] = node->surface;
+		}
+		*num = *num + 1;
+	}
+
+	pthread_mutex_unlock(&surface_queue->lock);
+
+	return TBM_SURFACE_QUEUE_ERROR_NONE;
+}
+
 typedef struct {
 	int queue_size;
 	int num_attached;
diff --git a/src/tbm_surface_queue.h b/src/tbm_surface_queue.h
index e3587b5..8803a60 100644
--- a/src/tbm_surface_queue.h
+++ b/src/tbm_surface_queue.h
@@ -127,6 +127,10 @@ tbm_surface_queue_error_e tbm_surface_queue_set_alloc_cb(
 	tbm_surface_free_cb free_cb,
 	void *data);
 
+tbm_surface_queue_error_e tbm_surface_queue_get_surfaces(
+	tbm_surface_queue_h surface_queue,
+	tbm_surface_h *surfaces, int *num);
+
 /*The functions of queue factory*/
 tbm_surface_queue_h tbm_surface_queue_create(int queue_size, int width,
 		int height, int format, int flags);