menu_widgets: implement generic message widget, have shaders selection use it

command.c

@@ -259,8 +259,11 @@ bool command_set_shader(const char *arg)
    if (type == RARCH_SHADER_NONE)
       return false;
 
-   snprintf(msg, sizeof(msg), "Shader: \"%s\"", arg);
-   runloop_msg_queue_push(msg, 1, 120, true, NULL, MESSAGE_QUEUE_ICON_DEFAULT, MESSAGE_QUEUE_CATEGORY_INFO);
+   snprintf(msg, sizeof(msg), "Shader: \"%s\"", arg ? path_basename(arg) : "null");
+#ifdef HAVE_MENU_WIDGETS
+   if (!menu_widgets_set_message(msg))
+#endif
+      runloop_msg_queue_push(msg, 1, 120, true, NULL, MESSAGE_QUEUE_ICON_DEFAULT, MESSAGE_QUEUE_CATEGORY_INFO);
    RARCH_LOG("%s \"%s\".\n",
          msg_hash_to_str(MSG_APPLYING_SHADER),
          arg);

menu/widgets/menu_widgets.c

@@ -85,6 +85,10 @@ static float menu_widgets_pure_white[16] = {
       1.00, 1.00, 1.00, 1.00,
 };
 
+/* Generic message */
+#define GENERIC_MESSAGE_SIZE 256
+static char generic_message[GENERIC_MESSAGE_SIZE] = {'\0'};
+
 /* Achievement notification */
 static char *cheevo_title              = NULL;
 static menu_texture_item cheevo_badge  = 0;
@@ -268,10 +272,16 @@ static menu_timer_t screenshot_timer;
 
 static unsigned screenshot_shotname_length;
 
+/* Generic message */
+static unsigned generic_message_height;
+static menu_timer_t generic_message_timer;
+static float generic_message_alpha = 0.0f;
+
 /* Metrics */
 static unsigned simple_widget_padding;
 static unsigned simple_widget_height;
 static unsigned glyph_width;
+static unsigned line_height;
 
 static unsigned msg_queue_height;
 static unsigned msg_queue_icon_size_x;
@@ -1310,6 +1320,26 @@ void menu_widgets_frame(video_frame_info_t *video_info)
    font_raster_regular.carr.coords.vertices = 0;
    font_raster_bold.carr.coords.vertices    = 0;
 
+   /* Generic message */
+   if (generic_message_alpha > 0.0f)
+   {
+      unsigned text_color = COLOR_TEXT_ALPHA(0xffffffff, (unsigned)(generic_message_alpha*255.0f));
+      menu_display_set_alpha(menu_widgets_backdrop_orig, generic_message_alpha);
+
+      menu_display_draw_quad(video_info,
+         0, video_info->height-generic_message_height,
+         video_info->width, generic_message_height,
+         video_info->width, video_info->height,
+         menu_widgets_backdrop_orig);
+
+      menu_display_draw_text(font_regular, generic_message,
+         video_info->width/2,
+         video_info->height - generic_message_height/2 + line_height/4,
+         video_info->width, video_info->height,
+         text_color, TEXT_ALIGN_CENTER,
+         1, false, 0, false);
+   }
+
    /* Screenshot */
    if (screenshot_loaded)
    {
@@ -1804,6 +1834,7 @@ void menu_widgets_context_reset(bool is_threaded)
    simple_widget_padding   = settings->floats.video_font_size * 2/3;
    simple_widget_height    = settings->floats.video_font_size + simple_widget_padding;
    glyph_width             = font_driver_get_message_width(font_regular, "a", 1, 1);
+   line_height             = font_driver_get_line_height(font_regular, 1);
 
    msg_queue_height                 = settings->floats.video_font_size * 2.5f;
 
@@ -1845,6 +1876,8 @@ void menu_widgets_context_reset(bool is_threaded)
    msg_queue_regular_text_base_y    = settings->floats.video_font_size * msg_queue_text_scale_factor + msg_queue_height/2;
 
    msg_queue_task_hourglass_x       = msg_queue_rect_start_x - msg_queue_icon_size_x;
+
+   generic_message_height           = settings->floats.video_font_size * 2;
 }
 
 void menu_widgets_context_destroy(void)
@@ -2316,6 +2349,48 @@ bool menu_widgets_push_achievement(const char *title, const char *badge)
    return true;
 }
 
+static void menu_widgets_generic_message_fadeout(void *userdata)
+{
+   menu_animation_ctx_tag tag = (uintptr_t) &generic_message_timer;
+   menu_animation_ctx_entry_t entry;
+
+   /* Start fade out animation */
+   entry.cb             = NULL;
+   entry.duration       = MSG_QUEUE_ANIMATION_DURATION;
+   entry.easing_enum    = EASING_OUT_QUAD;
+   entry.subject        = &generic_message_alpha;
+   entry.tag            = tag;
+   entry.target_value   = 0.0f;
+   entry.userdata       = NULL;
+
+   menu_animation_push(&entry);
+}
+
+bool menu_widgets_set_message(char *msg)
+{
+   menu_animation_ctx_tag tag = (uintptr_t) &generic_message_timer;
+   menu_timer_ctx_entry_t timer;
+
+   if (!menu_widgets_inited)
+      return false;
+
+   snprintf(generic_message, GENERIC_MESSAGE_SIZE, "%s", msg);
+
+   generic_message_alpha = DEFAULT_BACKDROP;
+
+   /* Kill and restart the timer / animation */
+   menu_timer_kill(&generic_message_timer);
+   menu_animation_kill_by_tag(&tag);
+
+   timer.cb       = menu_widgets_generic_message_fadeout;
+   timer.duration = GENERIC_MESSAGE_DURATION;
+   timer.userdata = NULL;
+
+   menu_timer_start(&generic_message_timer, &timer);
+
+   return true;
+}
+
 bool menu_widgets_ready(void)
 {
    return menu_widgets_inited;

menu/widgets/menu_widgets.h

@@ -35,6 +35,7 @@
 #define TASK_FINISHED_DURATION            3000
 #define HOURGLASS_INTERVAL                5000
 #define HOURGLASS_DURATION                1000
+#define GENERIC_MESSAGE_DURATION          3000
 
 void menu_widgets_init(bool video_is_threaded);
 void menu_widgets_free(void);
@@ -72,6 +73,9 @@ void menu_widgets_context_destroy(void);
 
 bool menu_widgets_push_achievement(const char *title, const char *badge);
 
+/* Warning: not thread safe! */
+bool menu_widgets_set_message(char *message);
+
 /* All the functions below should be called in
  * the video driver - once they are all added, set
  * enable_menu_widgets to true for that driver */