Various album art improvements:

* Make the album art display tag static instead of dynamic, making it be drawn less often, which is good.
* Add the possibility of clearing the album art bitmap instead of drawing it, and use this abaility when the display tag is inside a conditional construct.
* Add the album art display tag to wps_debug.c.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15592 a1c6a512-1295-4272-9138-f99709370657

apps/gui/gwps-common.c

@@ -932,7 +932,7 @@ static char *get_token_value(struct gui_wps *gwps,
 
 #ifdef HAVE_ALBUMART
         case WPS_TOKEN_ALBUMART_DISPLAY:
-            draw_album_art(gwps, audio_current_aa_hid());
+            draw_album_art(gwps, audio_current_aa_hid(), false);
             return NULL;
 
         case WPS_TOKEN_ALBUMART_FOUND:
@@ -1418,6 +1418,11 @@ static int evaluate_conditional(struct gui_wps *gwps, int cond_index)
     }
 #endif
 
+#ifdef HAVE_ALBUMART
+    if (data->albumart_cond_index == cond_index)
+        draw_album_art(gwps, audio_current_aa_hid(), true);
+#endif
+
     return ret;
 }
 

apps/gui/gwps.h

@@ -344,6 +344,8 @@ struct wps_data
                                        + .._INCREASE,  + .._DECREASE */
     short albumart_max_width;
     short albumart_max_height;
+
+    int albumart_cond_index;
 #endif
 
 #else /*HAVE_LCD_CHARCELLS */

apps/gui/wps_debug.c

@@ -214,6 +214,15 @@ static void dump_wps_tokens(struct wps_data *data)
                 break;
 #endif
 
+#ifdef HAVE_ALBUMART
+            case WPS_TOKEN_ALBUMART_DISPLAY:
+                snprintf(buf, sizeof(buf), "album art display at x=%d, y=%d, "
+                         "maxwidth=%d, maxheight=%d", data->albumart_x,
+                         data->albumart_y, data->albumart_max_width,
+                         data->albumart_max_height);
+                break;
+#endif
+
 #ifdef HAVE_LCD_BITMAP
             case WPS_TOKEN_IMAGE_BACKDROP:
                 snprintf(buf, sizeof(buf), "backdrop image");

apps/gui/wps_parser.c

@@ -293,7 +293,7 @@ static const struct wps_tag all_tags[] = {
     { WPS_TOKEN_IMAGE_PROGRESS_BAR,       "P",   0,    parse_image_special },
 #ifdef HAVE_ALBUMART
     { WPS_NO_TOKEN,                       "Cl",  0,    parse_albumart_load },
-    { WPS_TOKEN_ALBUMART_DISPLAY,         "C",   WPS_REFRESH_DYNAMIC,
+    { WPS_TOKEN_ALBUMART_DISPLAY,         "C",   WPS_REFRESH_STATIC,
                                                 parse_albumart_conditional },
 #endif
 #if (LCD_DEPTH > 1) || (defined(HAVE_LCD_REMOTE) && (LCD_REMOTE_DEPTH > 1))
@@ -824,7 +824,11 @@ static int parse_albumart_conditional(const char *wps_bufptr,
         }
     }
     else
+    {
+        /* This %C tag is in a conditional construct. */
+        wps_data->albumart_cond_index = condindex[level];
         return 0;
+    }
 };
 #endif /* HAVE_ALBUMART */
 

apps/recorder/albumart.c

@@ -231,8 +231,9 @@ bool find_albumart(const struct mp3entry *id3, char *buf, int buflen)
     return search_files(id3, size_string, buf, buflen);
 }
 
-/* Draw the album art bitmap from the given handle ID onto the given WPS. */
+/* Draw the album art bitmap from the given handle ID onto the given WPS.
-void draw_album_art(struct gui_wps *gwps, int handle_id)
+   Call with clear = true to clear the bitmap instead of drawing it. */
+void draw_album_art(struct gui_wps *gwps, int handle_id, bool clear)
 {
     if (!gwps || !gwps->data || !gwps->display || handle_id < 0)
         return;
@@ -277,9 +278,19 @@ void draw_album_art(struct gui_wps *gwps, int handle_id)
             y += (data->albumart_max_height - height) / 2;
     }
 
-    /* Draw the bitmap */
+    if (!clear)
-    gwps->display->set_drawmode(DRMODE_FG);
+    {
-    gwps->display->bitmap_part((fb_data*)bmp->data, 0, 0, bmp->width,
+        /* Draw the bitmap */
-                               x, y, width, height);
+        gwps->display->set_drawmode(DRMODE_FG);
-    gwps->display->set_drawmode(DRMODE_SOLID);
+        gwps->display->bitmap_part((fb_data*)bmp->data, 0, 0, bmp->width,
+                                   x, y, width, height);
+        gwps->display->set_drawmode(DRMODE_SOLID);
+    }
+    else
+    {
+        /* Clear the bitmap */
+        gwps->display->set_drawmode(DRMODE_SOLID|DRMODE_INVERSEVID);
+        gwps->display->fillrect(x, y, width, height);
+        gwps->display->set_drawmode(DRMODE_SOLID);
+    }
 }

apps/recorder/albumart.h

@@ -31,8 +31,9 @@
  * Returns true if a bitmap was found, false otherwise */
 bool find_albumart(const struct mp3entry *id3, char *buf, int buflen);
 
-/* Draw the album art bitmap from the given handle ID onto the given WPS. */
+/* Draw the album art bitmap from the given handle ID onto the given WPS.
-void draw_album_art(struct gui_wps *gwps, int handle_id);
+   Call with clear = true to clear the bitmap instead of drawing it. */
+void draw_album_art(struct gui_wps *gwps, int handle_id, bool clear);
 
 #endif /* HAVE_ALBUMART */