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List:       rockbox-cvs
Subject:    thomasjfox: r29925 - trunk/firmware/target/hosted/sdl
From:       mailer () svn ! rockbox ! org
Date:       2011-05-25 20:11:03
Message-ID: 201105252011.p4PKB3QQ012300 () giant ! haxx ! se
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Date: 2011-05-25 22:11:03 +0200 (Wed, 25 May 2011)
New Revision: 29925

Log Message:
Fix SDL touch screen handling on the screen edges

Modified:
   trunk/firmware/target/hosted/sdl/system-sdl.c

Modified: trunk/firmware/target/hosted/sdl/system-sdl.c
===================================================================
--- trunk/firmware/target/hosted/sdl/system-sdl.c	2011-05-25 08:44:49 UTC (rev 29924)
+++ trunk/firmware/target/hosted/sdl/system-sdl.c	2011-05-25 20:11:03 UTC (rev 29925)
@@ -138,8 +138,15 @@
     }
 
 #if (CONFIG_PLATFORM & (PLATFORM_MAEMO|PLATFORM_PANDORA))
-    /* Hide mouse cursor on real touchscreen device */
-    SDL_ShowCursor(SDL_DISABLE);
+    /* SDL touch screen fix: Work around a SDL assumption that returns
+       relative mouse coordinates when you get to the screen edges
+       using the touchscreen and a disabled mouse cursor.
+     */
+    uint8_t hiddenCursorData = 0;
+    SDL_Cursor *hiddenCursor = SDL_CreateCursor(&hiddenCursorData, &hiddenCursorData, 8, 1, 0, 0);
+
+    SDL_ShowCursor(SDL_ENABLE);
+    SDL_SetCursor(hiddenCursor);
 #endif
 
     SDL_WM_SetCaption(UI_TITLE, NULL);
@@ -174,6 +181,10 @@
     SDL_WaitThread(maemo_thread, NULL);
 #endif
 
+#if (CONFIG_PLATFORM & (PLATFORM_MAEMO|PLATFORM_PANDORA))
+    SDL_FreeCursor(hiddenCursor);
+#endif
+
     if(picture_surface)
         SDL_FreeSurface(picture_surface);
 

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