Add get_fbo_state().

driver.h

@@ -233,6 +233,7 @@ typedef struct video_poke_interface
    void (*set_blend)(void *data, bool enable);
    void (*set_filtering)(void *data, unsigned index, bool smooth);
    void (*set_fbo_state)(void *data, unsigned state);
+   unsigned (*get_fbo_state)(void *data);
    void (*set_aspect_ratio)(void *data, unsigned aspectratio_index);
    void (*apply_state_changes)(void *data);
 

gfx/gl.c

@@ -2259,6 +2259,12 @@ static void gl_set_fbo_state(void *data, unsigned mode)
 #endif
 }
 
+static unsigned gl_get_fbo_state(void *data)
+{
+   gl_t *gl = (gl_t*)data;
+   return gl->fbo_inited ? FBO_INIT : FBO_DEINIT;
+}
+
 static void gl_set_aspect_ratio(void *data, unsigned aspectratio_index)
 {
    gl_t *gl = (gl_t*)data;
@@ -2304,6 +2310,7 @@ static const video_poke_interface_t gl_poke_interface = {
    gl_set_blend,
    gl_set_filtering,
    gl_set_fbo_state,
+   gl_get_fbo_state,
    gl_set_aspect_ratio,
    gl_apply_state_changes,
 #ifdef HAVE_RGUI

gfx/thread_wrapper.c

@@ -44,6 +44,7 @@ enum thread_cmd
    CMD_POKE_SET_BLEND,
    CMD_POKE_SET_FILTERING,
    CMD_POKE_SET_FBO_STATE,
+   CMD_POKE_GET_FBO_STATE,
    CMD_POKE_SET_ASPECT_RATIO,
 
    CMD_DUMMY = INT_MAX
@@ -283,6 +284,11 @@ static void thread_loop(void *data)
             thread_reply(thr, CMD_POKE_SET_FBO_STATE);
             break;
 
+         case CMD_POKE_GET_FBO_STATE:
+            thr->cmd_data.i = thr->poke->get_fbo_state(thr->driver_data);
+            thread_reply(thr, CMD_POKE_GET_FBO_STATE);
+            break;
+
          case CMD_POKE_SET_ASPECT_RATIO:
             thr->poke->set_aspect_ratio(thr->driver_data,
                   thr->cmd_data.i);
@@ -625,6 +631,14 @@ static void thread_set_fbo_state(void *data, unsigned state)
    thread_wait_reply(thr, CMD_POKE_SET_FBO_STATE);
 }
 
+static unsigned thread_get_fbo_state(void *data)
+{
+   thread_video_t *thr = (thread_video_t*)data;
+   thread_send_cmd(thr, CMD_POKE_GET_FBO_STATE);
+   thread_wait_reply(thr, CMD_POKE_GET_FBO_STATE);
+   return thr->cmd_data.i;
+}
+
 static void thread_set_aspect_ratio(void *data, unsigned aspectratio_index)
 {
    thread_video_t *thr = (thread_video_t*)data;
@@ -656,6 +670,7 @@ static const video_poke_interface_t thread_poke = {
    thread_set_blend,
    thread_set_filtering,
    thread_set_fbo_state,
+   thread_get_fbo_state,
    thread_set_aspect_ratio,
    thread_apply_state_changes,
 #ifdef HAVE_RGUI

gx/gx_video.c

@@ -1041,6 +1041,7 @@ static const video_poke_interface_t gx_poke_interface = {
    NULL,
    NULL,
    NULL,
+   NULL,
    gx_set_aspect_ratio,
    gx_apply_state_changes,
    gx_set_rgui_texture,