fix(bw212): SD card image viewer may show corrupted image (#7416)

radio/src/gui/212x64/bmp.cpp

@@ -191,6 +191,15 @@ uint8_t * lcdLoadBitmap(uint8_t * bmp, const char * filename, uint16_t width, ui
 
 uint8_t modelBitmap[MODEL_BITMAP_SIZE] __DMA;
 
+void loadLogoBitmap(uint8_t* bitmap)
+{
+  RleBitmap pic(logo_taranis, 0);
+  *bitmap++ = pic.getWidth();
+  *bitmap++ = pic.getRawRows();
+  for(int i=0; i < MODEL_BITMAP_SIZE-2; i++)
+    *bitmap++ = pic.getNext();
+}
+
 bool loadModelBitmap(char * name, uint8_t * bitmap)
 {
   uint8_t len = zlen(name, LEN_BITMAP_NAME);
@@ -204,10 +213,6 @@ bool loadModelBitmap(char * name, uint8_t * bitmap)
   }
 
   // In all error cases, we set the default logo
-  RleBitmap pic(logo_taranis, 0);
-  *bitmap++ = pic.getWidth();
-  *bitmap++ = pic.getRawRows();
-  for(int i=0; i < MODEL_BITMAP_SIZE-2; i++)
-    *bitmap++ = pic.getNext();
+  loadLogoBitmap(bitmap);
   return false;
 }

radio/src/gui/212x64/gui.h

@@ -40,6 +40,7 @@
 
 extern uint8_t modelBitmap[MODEL_BITMAP_SIZE];
 bool loadModelBitmap(char * name, uint8_t * bitmap);
+void loadLogoBitmap(uint8_t* bitmap);
 
 void drawColumnHeader(const char * const * headers, uint8_t index);
 

radio/src/gui/common/stdlcd/radio_sdmanager.cpp

@@ -603,7 +603,7 @@ void menuRadioSdManager(event_t _event)
     if (ext && isExtensionMatching(ext, BITMAPS_EXT)) {
       if (lastPos != menuVerticalPosition) {
         if (!lcdLoadBitmap(modelBitmap, reusableBuffer.sdManager.lines[index], MODEL_BITMAP_WIDTH, MODEL_BITMAP_HEIGHT)) {
-          memcpy(modelBitmap, logo_taranis, MODEL_BITMAP_SIZE);
+          loadLogoBitmap(modelBitmap);
         }
       }
       lcdDrawBitmap(22*FW+2, 2*FH+FH/2, modelBitmap);