NxWM::CTouchscreen: Add CONFIG_NXWM_TOUCHSCREEN_DEVINIT to suppress attempts to initialize the touchscreen from NxWM in the kernel build

ChangeLog.txt

@@ -417,3 +417,10 @@
   This is because in the kernel build mode, the NX server must be initialized
   in kernel mode by the RTOS before applications using the server run in
   user mode.
+* NxWm: Added CONFIG_NXWM_NXCONSOLE that can be used to disable the NxConsole
+  window (2013-12-30).
+* NxWm::CTouchscreen: Added CONFIG_NXWM_TOUCHSCREEN_DEVINIT that can be used
+  to suppress calls to initialize the touchscreen device from the listener
+  thread.  This is necessary if the kernel mode build is used: In that case,
+  the touchscreen must be initialized in kernel space before NxWM is started
+  (2013-12-30).

Kconfig

@@ -738,6 +738,22 @@ if NXWM_TOUCHSCREEN
 
 comment "Touchscreen device settings"
 
+config NXWM_TOUCHSCREEN_DEVINIT
+	bool "Touchscreen Device Initialization"
+	default y
+	depends on !NUTTX_KERNEL
+	---help---
+		It this option is selected, then the NxWM:CTouchscreen listener
+		thread will call a function arch_tcinitialize(NXWM_TOUCHSCREEN_DEVNO)
+		in order to instantiate the touchscreen driver at path
+		NXWM_TOUCHSCREEN_DEVPATH.  If NXWM_TOUCHSCREEN_DEVINIT is not
+		selected, then the NxWM:CTouchscreen listener thread will assume
+		that the driver has already been initialized at
+		NXWM_TOUCHSCREEN_DEVPATH.
+
+		NOTE that in the kernel build, all touchscreen initialize must be
+		performed in kernel logic prior to the execution of NxWM.
+
 config NXWM_TOUCHSCREEN_DEVNO
 	int "Touchscreen Device Number"
 	default 0

libnxwidgets/src/cimage.cxx

@@ -235,6 +235,7 @@ void CImage::drawContents(CGraphicsPort *port)
       // This is the number of rows that we have to pad on the right if the display
       // width is wider than the image width
 
+#if 0 // Not used
       nxgl_coord_t nRightPad;
       if (nLeftPixels >= rect.getWidth())
         {
@@ -244,6 +245,7 @@ void CImage::drawContents(CGraphicsPort *port)
         {
           nRightPad = rect.getWidth() - nLeftPixels;
         }
+#endif
 
       // Apply the padding to the right hand side
 

nxwm/src/ctouchscreen.cxx

@@ -278,6 +278,7 @@ FAR void *CTouchscreen::listener(FAR void *arg)
 
   vdbg("Listener started\n");
 
+#ifdef CONFIG_NXWM_TOUCHSCREEN_DEVINIT
   // Initialize the touchscreen device
 
   int ret = arch_tcinitialize(CONFIG_NXWM_TOUCHSCREEN_DEVNO);
@@ -288,6 +289,7 @@ FAR void *CTouchscreen::listener(FAR void *arg)
       sem_post(&This->m_waitSem);
       return (FAR void *)0;
     }
+#endif
 
   // Open the touchscreen device that we just created.