From: joonbum.ko <joonbum.ko@samsung.com>
Date: Tue, 9 Jan 2018 08:59:46 +0000 (+0900)
Subject: tpl_wayland_egl_thread: Added a new internal API to get swapchain buffers from wl_tbm... 
X-Git-Tag: accepted/tizen/unified/20180208.163715~8
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=b97db75972ce555526a391ba324b4c2d2ebf3f3d;p=platform%2Fcore%2Fuifw%2Flibtpl-egl.git

tpl_wayland_egl_thread: Added a new internal API to get swapchain buffers from wl_tbm_client.

 - Added internal API is twe_surface_get_swapchain_buffers.
 - This function uses the wayland-tbm API 'wayland_tbm_client_queue_get_surfaces()'
  to get the handle of tbm_surfaces to be used from the tbm_surface_queue of swapchain.

Change-Id: If2d5d2f2d6bbb85ba586d56a9ffac6cb54cb689e
Signed-off-by: joonbum.ko <joonbum.ko@samsung.com>
---

diff --git a/src/tpl_wayland_egl_thread.c b/src/tpl_wayland_egl_thread.c
index 7704956..d800c4c 100644
--- a/src/tpl_wayland_egl_thread.c
+++ b/src/tpl_wayland_egl_thread.c
@@ -2658,6 +2658,39 @@ twe_surface_destroy_swapchain(twe_surface_h twe_surface)
 	return TPL_ERROR_NONE;
 }
 
+tpl_result_t
+twe_surface_get_swapchain_buffers(twe_surface_h twe_surface,
+								  tbm_surface_h *surfaces,
+								  int *buffer_count)
+{
+	twe_wl_surf_source *surf_source = (twe_wl_surf_source *)twe_surface;
+	twe_wl_disp_source *disp_source = NULL;
+	int ret = 1;
+
+	if (!surf_source || g_source_is_destroyed(&surf_source->gsource)) {
+		TPL_ERR("twe_surface(%p) is invalid.", twe_surface);
+		return TPL_ERROR_INVALID_PARAMETER;
+	}
+
+	if (!surfaces) {
+		*buffer_count = tbm_surface_queue_get_size(surf_source->tbm_queue);
+		return TPL_ERROR_NONE;
+	}
+
+	disp_source = surf_source->disp_source;
+
+	ret = wayland_tbm_client_queue_get_surfaces(
+			disp_source->wl_tbm_client,
+			surf_source->tbm_queue,
+			surfaces, buffer_count);
+	if (!ret) {
+		TPL_ERR("Failed to get buffers from wl_tbm_client(%p) tbm_queue(%p)",
+				disp_source->wl_tbm_client, surf_source->tbm_queue);
+		return TPL_ERROR_INVALID_OPERATION;
+	}
+
+	return TPL_ERROR_NONE;
+}
 
 tpl_result_t
 twe_surface_set_rotate_callback(twe_surface_h twe_surface,
diff --git a/src/tpl_wayland_egl_thread.h b/src/tpl_wayland_egl_thread.h
index e89d527..bd32f1d 100644
--- a/src/tpl_wayland_egl_thread.h
+++ b/src/tpl_wayland_egl_thread.h
@@ -55,6 +55,11 @@ twe_surface_create_swapchain(twe_surface_h twe_surface,
 tpl_result_t
 twe_surface_destroy_swapchain(twe_surface_h twe_surface);
 
+tpl_result_t
+twe_surface_get_swapchain_buffers(twe_surface_h twe_surface,
+								  tbm_surface_h *surfaces,
+								  int *buffer_count);
+
 tbm_surface_queue_h
 twe_surface_get_tbm_queue(twe_surface_h twe_surface);