Fixes for rendering fonts at 4bpp

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2682 42af7a65-404d-4744-a932-0658087f49c3

TODO

-NuttX TODO List (Last updated May 14, 2010)
+NuttX TODO List (Last updated May 16, 2010)
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
   (5)  Task/Scheduler (sched/)
@@ -12,7 +12,7 @@ NuttX TODO List (Last updated May 14, 2010)
   (1)  USB (drivers/usbdev)
   (5)  Libraries (lib/)
  (12)  File system/Generic drivers (fs/, drivers/)
-  (3)  Graphics subystem (graphics/)
+  (2)  Graphics subystem (graphics/)
   (1)  Pascal add-on (pcode/)
   (1)  Documentation (Documentation/)
   (6)  Build system / Toolchains
@@ -430,12 +430,6 @@ o Graphics subystem (graphics/)
   Status:      Open
   Priority:    Medium
 
-  Description: There is an issue with building NXGL on some newer tool chains
-               (gcc-4.2.2).  The is s problem with the way that the isystem option
-               works with the -E option.  See the full description under Build
-  Status:      Open
-  Priority:    This is a duplicate of an issue addressed under Build problems.
-
 o Pascal Add-On (pcode/)
   ^^^^^^^^^^^^^^^^^^^^^^
 

configs/lm3s6965-ek/src/up_oled.c

@@ -101,8 +101,10 @@ FAR struct lcd_dev_s *up_nxdrvinit(unsigned int devno)
 
   oledcs_dumpgpio("up_nxdrvinit: After OLEDCS setup");
   oleddc_dumpgpio("up_nxdrvinit: On entry");
+
   lm3s_configgpio(OLEDDC_GPIO); /* PC7: OLED display data/control select (D/Cn) */
   lm3s_configgpio(OLEDEN_GPIO); /* PC6: Enable +15V needed by OLED (EN+15V) */
+
   oleddc_dumpgpio("up_nxdrvinit: After OLEDDC/EN setup");
 
   /* Get the SSI port (configure as a Freescale SPI port) */
@@ -110,7 +112,7 @@ FAR struct lcd_dev_s *up_nxdrvinit(unsigned int devno)
   spi = up_spiinitialize(0);
   if (!spi)
     {
-      glldbg("Failed to initialize SPI port 0\n");
+      glldbg("Failed to initialize SSI port 0\n");
     }
   else
     {

examples/nx/nx_kbdin.c

@@ -67,10 +67,8 @@
 #  define RENDERER nxf_convert_1bpp
 #elif CONFIG_EXAMPLES_NX_BPP == 2
 #  define RENDERER nxf_convert_2bpp
-#elif CONFIG_EXAMPLES_NX_BPP == 2
-#  define RENDERER nxf_convert_4bpp
 #elif CONFIG_EXAMPLES_NX_BPP == 4
-#  define RENDERER nxf_convert_8bpp
+#  define RENDERER nxf_convert_4bpp
 #elif CONFIG_EXAMPLES_NX_BPP == 8
 #  define RENDERER nxf_convert_8bpp
 #elif CONFIG_EXAMPLES_NX_BPP == 16

graphics/nxfonts/nxfonts_convert.c

 /****************************************************************************
  * graphics/nxfonts/nxfonts_convert.c
  *
- *   Copyright (C) 2008-2009 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2008-2010 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -96,6 +96,14 @@
 
 #endif
 
+#if NXFONTS_BITSPERPIXEL < 8
+#  ifdef CONFIG_NX_PACKEDMSFIRST
+#     define NXF_INITMASK         (NXF_PIXELMASK << (8 - NXFONTS_BITSPERPIXEL))
+#  else
+#     define NXF_INITMASK         NXF_PIXELMASK
+#  endif
+#endif
+
 /* Form a function name by concatenating two strings */
 
 #define _NXF_FUNCNAME(a,b) a ## b
@@ -182,11 +190,7 @@ int NXF_FUNCNAME(nxf_convert,NXFONTS_SUFFIX)
       col   = 0;
       dptr  = (FAR NXF_PIXEL_T*)line;
       pixel = *dptr;
-#ifdef CONFIG_NX_PACKEDMSFIRST
-      mask  = NXF_PIXELMASK << (8 - NXFONTS_BITSPERPIXEL);
-#else
-      mask  = NXF_PIXELMASK;
-#endif
+      mask  = NXF_INITMASK;
       nbits = 0;
 
       for (bmndx = 0; bmndx < bm->metric.stride && col < width; bmndx++)
@@ -216,7 +220,7 @@ int NXF_FUNCNAME(nxf_convert,NXFONTS_SUFFIX)
                 {
                   *dptr++ = pixel;
                   pixel = *dptr;
-                  mask  = NXF_PIXELMASK;
+                  mask  = NXF_INITMASK;
                   nbits = 0;
                 }
             }