YaGL: Add tpl surface validation

With EFL a 1x1 surface is created at first and then it is resized. There
is a need to handle such situation before drawing GL stuff and
invalidate the renderer.

Change-Id: Ic11cbae921d1f486f1a81fa1633c6f64d5673efe
Signed-off-by: Vasiliy Ulyanov <v.ulyanov@samsung.com>

4 files changed, 39 insertions, 6 deletions

diff --git a/EGL/tizen/yagl_tizen_pbuffer.c b/EGL/tizen/yagl_tizen_pbuffer.c
index 68f386a..2660976 100644
--- a/EGL/tizen/yagl_tizen_pbuffer.c
+++ b/EGL/tizen/yagl_tizen_pbuffer.c
@@ -70,6 +70,11 @@ static int yagl_tizen_pbuffer_get_buffer(struct yagl_native_drawable *drawable,
     return 1;
 }
 
+static int yagl_tizen_pbuffer_validate(struct yagl_native_drawable *drawable)
+{
+    return 1;
+}
+
 static int yagl_tizen_pbuffer_get_buffer_age(struct yagl_native_drawable *drawable)
 {
     return 0;
@@ -186,6 +191,7 @@ struct yagl_native_drawable
     yagl_native_drawable_init(pbuffer, dpy, (yagl_os_drawable)drm_sfc);
 
     pbuffer->get_buffer = &yagl_tizen_pbuffer_get_buffer;
+    pbuffer->validate = &yagl_tizen_pbuffer_validate;
     pbuffer->get_buffer_age = &yagl_tizen_pbuffer_get_buffer_age;
     pbuffer->swap_buffers = &yagl_tizen_pbuffer_swap_buffers;
     pbuffer->wait = &yagl_tizen_pbuffer_wait;
diff --git a/EGL/tizen/yagl_tizen_window.c b/EGL/tizen/yagl_tizen_window.c
index 56c338e..3a4c80a 100644
--- a/EGL/tizen/yagl_tizen_window.c
+++ b/EGL/tizen/yagl_tizen_window.c
@@ -75,8 +75,7 @@ static int yagl_tizen_window_get_buffer(struct yagl_native_drawable *drawable,
     width = tbm_surface_get_width(tbm_surface);
     height = tbm_surface_get_height(tbm_surface);
 
-    if ((window->width != width) ||
-    (window->height != height)) {
+    if ((window->width != width) || (window->height != height)) {
         for (i = 0; i < YAGL_TIZEN_MAX_COLOR_BUF; i++) {
             if (window->color_buffers[i].locked && window->back != &window->color_buffers[i]) {
                 /*
@@ -84,11 +83,13 @@ static int yagl_tizen_window_get_buffer(struct yagl_native_drawable *drawable,
                  */
                 continue;
             }
-            if(window->color_buffers[i].data) {
-				tbm_surface_internal_unref(window->color_buffers[i].data);
-				window->color_buffers[i].data =  NULL;
+
+            if (window->color_buffers[i].data) {
+                tbm_surface_internal_unref(window->color_buffers[i].data);
+                window->color_buffers[i].data =  NULL;
             }
-			if (window->back == &window->color_buffers[i]) {
+
+            if (window->back == &window->color_buffers[i]) {
                 /*
                  * If it's a back buffer and the window was resized
                  * then we MUST destroy it and create a new one
@@ -146,6 +147,22 @@ static int yagl_tizen_window_get_buffer(struct yagl_native_drawable *drawable,
     return 1;
 }
 
+static int yagl_tizen_window_validate(struct yagl_native_drawable *drawable)
+{
+    struct yagl_tizen_window *window = (struct yagl_tizen_window *)drawable;
+
+    if (!window->back || !window->back->data) {
+        return 1;
+    }
+
+    if (tpl_surface_validate(window->surface) == TPL_FALSE) {
+        ++drawable->stamp;
+        return 0;
+    }
+
+    return 1;
+}
+
 static int yagl_tizen_window_get_buffer_age(struct yagl_native_drawable *drawable)
 {
     struct yagl_tizen_window *window = (struct yagl_tizen_window*)drawable;
@@ -261,7 +278,9 @@ struct yagl_native_drawable
                                      (tpl_handle_t)os_window,
                                      TPL_SURFACE_TYPE_WINDOW,
                                      TBM_FORMAT_ARGB8888);
+
     window->base.get_buffer = &yagl_tizen_window_get_buffer;
+    window->base.validate = &yagl_tizen_window_validate;
     window->base.get_buffer_age = &yagl_tizen_window_get_buffer_age;
     window->base.swap_buffers = &yagl_tizen_window_swap_buffers;
     window->base.wait = &yagl_tizen_window_wait;
diff --git a/EGL/yagl_native_drawable.h b/EGL/yagl_native_drawable.h
index 1641d08..566bacd 100644
--- a/EGL/yagl_native_drawable.h
+++ b/EGL/yagl_native_drawable.h
@@ -56,6 +56,10 @@ struct yagl_native_drawable
                       uint32_t */*buffer_name*/,
                       struct vigs_drm_surface **/*buffer_sfc*/);
 
+#ifdef YAGL_PLATFORM_TIZEN
+    int (*validate)(struct yagl_native_drawable */*drawable*/);
+#endif
+
     int (*get_buffer_age)(struct yagl_native_drawable */*drawable*/);
 
     void (*swap_buffers)(struct yagl_native_drawable */*drawable*/);
diff --git a/EGL/yagl_onscreen_surface.c b/EGL/yagl_onscreen_surface.c
index 8d65606..e1a3612 100644
--- a/EGL/yagl_onscreen_surface.c
+++ b/EGL/yagl_onscreen_surface.c
@@ -62,7 +62,11 @@ static void yagl_onscreen_surface_invalidate(struct yagl_surface *sfc)
     struct yagl_native_drawable *drawable = native_drawable(osfc);
     struct vigs_drm_surface *new_drm_sfc;
 
+#ifdef YAGL_PLATFORM_TIZEN
+    if (drawable->validate(drawable) && osfc->last_stamp == drawable->stamp) {
+#else
     if (osfc->last_stamp == drawable->stamp) {
+#endif
         return;
     }