hmi-controller: allocate background surfaces for multi-screen

A surface ID for layer of background/panel image is set by key: background-id
or panel-id at weston.ini. To support multi screens, it also support offset,
surface-id-offset, to offset the surface ID to next ID for a layer on next
screen.

According to the above key, hmi-controller and ivi-shell-user-interface
who increments the number of screens per notification of wl_output.
crate surface and draw background/panel image on multi surface on screens.

Signed-off-by: Nobuhiko Tanibata <NOBUHIKO_TANIBATA@xddp.denso.co.jp>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>

clients/ivi-shell-user-interface.c

@@ -158,6 +158,8 @@ hmi_homescreen_setting {
 	char		*cursor_theme;
 	int32_t		cursor_size;
 	uint32_t	transition_duration;
+	uint32_t	surface_id_offset;
+	int32_t		screen_num;
 };
 
 static void *
@@ -621,6 +623,8 @@ registry_handle_global(void *data, struct wl_registry *registry, uint32_t name,
 
 		ivi_hmi_controller_add_listener(p_wlCtx->hmiCtrl,
 				&hmi_controller_listener, p_wlCtx);
+	} else if (!strcmp(interface, "wl_output")) {
+		p_wlCtx->hmi_setting->screen_num++;
 	}
 }
 
@@ -1161,6 +1165,9 @@ hmi_homescreen_setting_create(void)
 		shellSection, "workspace-background-id",
 		&setting->workspace_background.id, 2001);
 
+	weston_config_section_get_uint(
+		shellSection, "surface-id-offset", &setting->surface_id_offset, 10);
+
 	icon_surface_id = workspace_layer_id + 1;
 
 	while (weston_config_next_section(config, &section, &name)) {
@@ -1201,8 +1208,8 @@ hmi_homescreen_setting_create(void)
 int main(int argc, char **argv)
 {
 	struct wlContextCommon wlCtxCommon;
-	struct wlContextStruct wlCtx_BackGround;
+	struct wlContextStruct *wlCtx_BackGround;
-	struct wlContextStruct wlCtx_Panel;
+	struct wlContextStruct *wlCtx_Panel;
 	struct wlContextStruct wlCtx_Button_1;
 	struct wlContextStruct wlCtx_Button_2;
 	struct wlContextStruct wlCtx_Button_3;
@@ -1213,12 +1220,11 @@ int main(int argc, char **argv)
 	int ret = 0;
 	struct hmi_homescreen_setting *hmi_setting;
 	struct wlContextStruct *pWlCtxSt = NULL;
+	int i = 0;
 
 	hmi_setting = hmi_homescreen_setting_create();
 
 	memset(&wlCtxCommon, 0x00, sizeof(wlCtxCommon));
-	memset(&wlCtx_BackGround, 0x00, sizeof(wlCtx_BackGround));
-	memset(&wlCtx_Panel,	  0x00, sizeof(wlCtx_Panel));
 	memset(&wlCtx_Button_1,   0x00, sizeof(wlCtx_Button_1));
 	memset(&wlCtx_Button_2,   0x00, sizeof(wlCtx_Button_2));
 	memset(&wlCtx_Button_3,   0x00, sizeof(wlCtx_Button_3));
@@ -1256,6 +1262,9 @@ int main(int argc, char **argv)
 		exit(1);
 	}
 
+	wlCtx_BackGround = MEM_ALLOC(hmi_setting->screen_num * sizeof(struct wlContextStruct));
+	wlCtx_Panel= MEM_ALLOC(hmi_setting->screen_num * sizeof(struct wlContextStruct));
+
 	if (wlCtxCommon.hmi_setting->cursor_theme) {
 		create_cursors(&wlCtxCommon);
 
@@ -1265,8 +1274,6 @@ int main(int argc, char **argv)
 		wlCtxCommon.current_cursor = CURSOR_LEFT_PTR;
 	}
 
-	wlCtx_BackGround.cmm = &wlCtxCommon;
-	wlCtx_Panel.cmm      = &wlCtxCommon;
 	wlCtx_Button_1.cmm   = &wlCtxCommon;
 	wlCtx_Button_2.cmm   = &wlCtxCommon;
 	wlCtx_Button_3.cmm   = &wlCtxCommon;
@@ -1275,11 +1282,18 @@ int main(int argc, char **argv)
 	wlCtx_WorkSpaceBackGround.cmm = &wlCtxCommon;
 
 	/* create desktop widgets */
-	create_background(&wlCtx_BackGround, hmi_setting->background.id,
+	for (i = 0; i < hmi_setting->screen_num; i++) {
+		wlCtx_BackGround[i].cmm = &wlCtxCommon;
+		create_background(&wlCtx_BackGround[i],
+				  hmi_setting->background.id +
+					(i * hmi_setting->surface_id_offset),
 				  hmi_setting->background.filePath);
 
-	create_panel(&wlCtx_Panel, hmi_setting->panel.id,
+		wlCtx_Panel[i].cmm = &wlCtxCommon;
+		create_panel(&wlCtx_Panel[i],
+			     hmi_setting->panel.id + (i * hmi_setting->surface_id_offset),
 			     hmi_setting->panel.filePath);
+	}
 
 	create_button(&wlCtx_Button_1, hmi_setting->tiling.id,
 		      hmi_setting->tiling.filePath, 0);
@@ -1310,6 +1324,9 @@ int main(int argc, char **argv)
 		destroyWLContextStruct(pWlCtxSt);
 	}
 
+	free(wlCtx_BackGround);
+	free(wlCtx_Panel);
+
 	destroyWLContextCommon(&wlCtxCommon);
 
 	return 0;

ivi-shell/hmi-controller.c

@@ -105,6 +105,7 @@ struct ui_setting {
 	uint32_t random_id;
 	uint32_t home_id;
 	uint32_t workspace_background_id;
+	uint32_t surface_id_offset;
 };
 
 struct hmi_controller {
@@ -830,22 +831,23 @@ ivi_hmi_controller_set_background(struct hmi_controller *hmi_ctrl,
 				  uint32_t id_surface)
 {
 	struct ivi_layout_surface *ivisurf = NULL;
-	struct hmi_controller_layer *base_layer =
+	struct hmi_controller_layer *base_layer = NULL;
-					wl_container_of(hmi_ctrl->base_layer_list.prev,
+	struct ivi_layout_layer   *ivilayer = NULL;
-							base_layer,
-							link);
-	struct ivi_layout_layer   *ivilayer = base_layer->ivilayer;
 	const int32_t dstx = hmi_ctrl->application_layer.x;
 	const int32_t dsty = hmi_ctrl->application_layer.y;
 	const int32_t width  = hmi_ctrl->application_layer.width;
 	const int32_t height = hmi_ctrl->application_layer.height;
 	int32_t ret = 0;
+	int32_t i = 0;
 
+	wl_list_for_each_reverse(base_layer, &hmi_ctrl->base_layer_list, link) {
 		uint32_t *add_surface_id = wl_array_add(&hmi_ctrl->ui_widgets,
 							sizeof(*add_surface_id));
-	*add_surface_id = id_surface;
+		*add_surface_id = id_surface + (i * hmi_ctrl->ui_setting.surface_id_offset);
 
-	ivisurf = ivi_layout_interface->get_surface_from_id(id_surface);
+		ivilayer = base_layer->ivilayer;
+
+		ivisurf = ivi_layout_interface->get_surface_from_id(*add_surface_id);
 		assert(ivisurf != NULL);
 
 		ret = ivi_layout_interface->layer_add_surface(ivilayer, ivisurf);
@@ -857,6 +859,9 @@ ivi_hmi_controller_set_background(struct hmi_controller *hmi_ctrl,
 
 		ret = ivi_layout_interface->surface_set_visibility(ivisurf, true);
 		assert(!ret);
+
+		i++;
+	}
 }
 
 /**
@@ -875,25 +880,26 @@ ivi_hmi_controller_set_panel(struct hmi_controller *hmi_ctrl,
 					wl_container_of(hmi_ctrl->base_layer_list.prev,
 							base_layer,
 							link);
-	struct ivi_layout_layer   *ivilayer = base_layer->ivilayer;
+	struct ivi_layout_layer   *ivilayer = NULL;
 	const int32_t width  = base_layer->width;
 	int32_t ret = 0;
-	int32_t panel_height = 0;
+	int32_t panel_height = hmi_ctrl->hmi_setting->panel_height;
 	const int32_t dstx = 0;
 	int32_t dsty = 0;
+	int32_t i = 0;
 
+	wl_list_for_each_reverse(base_layer, &hmi_ctrl->base_layer_list, link) {
 		uint32_t *add_surface_id = wl_array_add(&hmi_ctrl->ui_widgets,
 							sizeof(*add_surface_id));
-	*add_surface_id = id_surface;
+		*add_surface_id = id_surface + (i * hmi_ctrl->ui_setting.surface_id_offset);
 
-	ivisurf = ivi_layout_interface->get_surface_from_id(id_surface);
+		ivilayer = base_layer->ivilayer;
+		ivisurf = ivi_layout_interface->get_surface_from_id(*add_surface_id);
 		assert(ivisurf != NULL);
 
 		ret = ivi_layout_interface->layer_add_surface(ivilayer, ivisurf);
 		assert(!ret);
 
-	panel_height = hmi_ctrl->hmi_setting->panel_height;
-
 		dsty = base_layer->height - panel_height;
 
 		ret = ivi_layout_interface->surface_set_destination_rectangle(
@@ -902,6 +908,9 @@ ivi_hmi_controller_set_panel(struct hmi_controller *hmi_ctrl,
 
 		ret = ivi_layout_interface->surface_set_visibility(ivisurf, true);
 		assert(!ret);
+
+		i++;
+	}
 }
 
 /**
@@ -1816,6 +1825,7 @@ initialize(struct hmi_controller *hmi_ctrl)
 		{ "random-id", &hmi_ctrl->ui_setting.random_id },
 		{ "home-id", &hmi_ctrl->ui_setting.home_id },
 		{ "workspace-background-id", &hmi_ctrl->ui_setting.workspace_background_id },
+		{ "surface-id-offset", &hmi_ctrl->ui_setting.surface_id_offset },
 		{ NULL, NULL }
 	};
 

ivi-shell/weston.ini.in

@@ -23,6 +23,7 @@ background-image=@abs_top_srcdir@/data/background.png
 background-id=1001
 panel-image=@abs_top_srcdir@/data/panel.png
 panel-id=1002
+surface-id-offset=10
 tiling-image=@abs_top_srcdir@/data/tiling.png
 tiling-id=1003
 sidebyside-image=@abs_top_srcdir@/data/sidebyside.png