slightly rework peakmeter handling to make it cleaner and be able to be used in conditionals

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25913 a1c6a512-1295-4272-9138-f99709370657

apps/gui/skin_engine/skin_display.c

@@ -630,6 +630,10 @@ static bool evaluate_conditional(struct gui_wps *gwps, int *token_index)
             struct progressbar *bar = (struct progressbar*)data->tokens[i].value.data;
             bar->draw = false;
         }
+        else if (data->tokens[i].type == WPS_TOKEN_PEAKMETER)
+        {
+            data->peak_meter_enabled = false;
+        }
 #endif
 #ifdef HAVE_ALBUMART
         if (data->albumart && data->tokens[i].type == WPS_TOKEN_ALBUMART_DISPLAY)
@@ -692,6 +696,9 @@ static bool get_line(struct gui_wps *gwps,
                 break;
 
 #ifdef HAVE_LCD_BITMAP
+            case WPS_TOKEN_PEAKMETER:
+                data->peak_meter_enabled = true;
+                break;
             case WPS_TOKEN_VOLUMEBAR:
             case WPS_TOKEN_BATTERY_PERCENTBAR:
             case WPS_TOKEN_PROGRESSBAR:
@@ -1083,19 +1090,6 @@ static bool skin_redraw(struct gui_wps *gwps, unsigned refresh_mode)
 
     bool update_line, new_subline_refresh;
 
-#ifdef HAVE_LCD_BITMAP
-
-    /* to find out wether the peak meter is enabled we
-       assume it wasn't until we find a line that contains
-       the peak meter. We can't use peak_meter_enabled itself
-       because that would mean to turn off the meter thread
-       temporarily. (That shouldn't matter unless yield
-       or sleep is called but who knows...)
-    */
-    bool enable_pm = false;
-
-#endif
-
     /* reset to first subline if refresh all flag is set */
     if (refresh_mode == WPS_REFRESH_ALL)
     {
@@ -1225,6 +1219,12 @@ static bool skin_redraw(struct gui_wps *gwps, unsigned refresh_mode)
 #ifdef HAVE_LCD_BITMAP
             /* peakmeter */
             if (flags & vp_refresh_mode & WPS_REFRESH_PEAK_METER)
+            {
+                if (!data->peak_meter_enabled)
+                {
+                    peak_meter_enable(false);
+                }
+                else
                 {
                     /* the peakmeter should be alone on its line */
                     update_line = false;
@@ -1237,16 +1237,10 @@ static bool skin_redraw(struct gui_wps *gwps, unsigned refresh_mode)
                         visible. If so we neither want do draw nor enable the
                         peak meter. */
                     if (peak_meter_y + h <= skin_viewport->vp.y+skin_viewport->vp.height) {
-                    /* found a line with a peak meter -> remember that we must
-                        enable it later */
-                    enable_pm = true;
-                    peak_meter_enabled = true;
+                        peak_meter_enable(true);
                         peak_meter_screen(gwps->display, 0, peak_meter_y,
                                           MIN(h, skin_viewport->vp.y+skin_viewport->vp.height - peak_meter_y));
                     }
-                else
-                {
-                    peak_meter_enabled = false;
                 }
             }
 
@@ -1302,9 +1296,6 @@ static bool skin_redraw(struct gui_wps *gwps, unsigned refresh_mode)
 #endif
     }
 
-#ifdef HAVE_LCD_BITMAP
-    data->peak_meter_enabled = enable_pm;
-#endif
     /* Restore the default viewport */
     display->set_viewport(NULL);
 

apps/recorder/peakmeter.c

@@ -78,7 +78,11 @@ static long pm_clip_timeout_r;
 
 /* Temporarily en- / disables peak meter. This is especially for external
    applications to detect if the peak_meter is in use and needs drawing at all */
-bool peak_meter_enabled = true;
+static bool peak_meter_enabled = true;
+void peak_meter_enable(bool enable)
+{
+    peak_meter_enabled = enable;
+}
 
 /** Parameters **/
 /* Range */

apps/recorder/peakmeter.h

@@ -32,7 +32,7 @@ extern int pm_get_clipcount(void);
 extern void pm_reset_clipcount(void);
 extern void pm_activate_clipcount(bool active);
 
-extern bool peak_meter_enabled;
+extern void peak_meter_enable(bool enable);
 
 extern void peak_meter_playback(bool playback);
 extern int  peak_meter_draw_get_btn(int action_context, int x[], int y[],

apps/recorder/radio.c

@@ -548,7 +548,7 @@ int radio_screen(void)
     /* Yes, we use the D/A for monitoring */
     peak_meter_playback(true);
 
-    peak_meter_enabled = true;
+    peak_meter_enable(true);
 
     rec_init_recording_options(&rec_options);
     rec_options.rec_source = AUDIO_SRC_LINEIN;

apps/recorder/recording.c

@@ -698,7 +698,7 @@ void rec_set_source(int source, unsigned flags)
 
     /* Set peakmeters for recording or reset to playback */
     peak_meter_playback((flags & SRCF_RECORDING) == 0);
-    peak_meter_enabled = true;
+    peak_meter_enable(true);
 }
 #endif /* CONFIG_CODEC == SWCODEC && !defined (SIMULATOR) */
 
@@ -1099,7 +1099,7 @@ bool recording_screen(bool no_source)
        buffer */
 #else
     /* Yes, we use the D/A for monitoring */
-    peak_meter_enabled = true;
+    peak_meter_enable(true);
     peak_meter_playback(true);
 #endif
 
@@ -1549,7 +1549,7 @@ bool recording_screen(bool no_source)
                 {
 #if CONFIG_CODEC != SWCODEC
                     peak_meter_playback(true);
-                    peak_meter_enabled = false;
+                    peak_meter_enable(false);
 #endif
                     done = 1;
                 }