Fixed behaviour when connecting USB, made scrolling a bit faster by not emptying the button queue every time

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@4675 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 4 insertions, 8 deletions

diff --git a/apps/plugins/jpeg.c b/apps/plugins/jpeg.c
index be9e4db5e2..99cdf5ba61 100644
--- a/apps/plugins/jpeg.c
+++ b/apps/plugins/jpeg.c
@@ -1470,22 +1470,18 @@ int root_size;
 /* interactively scroll around the image */
 int scroll_bmp(struct t_disp* pdisp)
 {
+    /*empty the button queue first, to avoid unwanted scrolling */
+    while(rb->button_get(false) != BUTTON_NONE);
+
     while (true)
     {
         int button;
         int move;
 
-        /* we're unfortunately slower than key repeat,
-           so empty the button queue, to avoid post-scroll */
-        while(rb->button_get(false) != BUTTON_NONE);
-
         button = rb->button_get(true);
 
         if (button == SYS_USB_CONNECTED)
-        {
-            gray_release_buffer(); /* switch off overlay and deinitialize */
             return PLUGIN_USB_CONNECTED;
-        }
 
         switch(button & ~(BUTTON_REPEAT))
         {
@@ -1885,7 +1881,7 @@ int main(char* filename)
         gray_show_display(false); /* switch off overlay */
 
     }
-    while (status > 0 && status != SYS_USB_CONNECTED);
+    while (status != PLUGIN_OK && status != PLUGIN_USB_CONNECTED);
 
     gray_release_buffer(); /* deinitialize */