Add font test

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1413 42af7a65-404d-4744-a932-0658087f49c3

1 files changed, 373 insertions, 0 deletions

diff --git a/nuttx/examples/nx/nx_kbdin.c b/nuttx/examples/nx/nx_kbdin.c
new file mode 100644
index 000000000..04d4e6aa1
--- /dev/null
+++ b/nuttx/examples/nx/nx_kbdin.c
@@ -0,0 +1,373 @@
+/****************************************************************************
+ * examples/nx/nx_kbdin.c
+ *
+ *   Copyright (C) 2008 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <sys/types.h>
+#include <stdlib.h>
+#include <ctype.h>
+#include <debug.h>
+#include <errno.h>
+
+#include <nuttx/nx.h>
+#include <nuttx/nxtk.h>
+#include <nuttx/nxfonts.h>
+
+#include "nx_internal.h"
+
+#ifdef CONFIG_NX_KBD
+
+/****************************************************************************
+ * Definitions
+ ****************************************************************************/
+
+/* Select renderer -- Some additional logic would be required to support
+ * pixel depths that are not directly addressable (1,2,4, and 24).
+ */
+
+#ifndef CONFIG_EXAMPLES_NX_RAWWINDOWS
+#if CONFIG_EXAMPLES_NX_BPP == 8
+#  define RENDERER nxf_convert_8bpp
+#elif CONFIG_EXAMPLES_NX_BPP == 16
+#  define RENDERER nxf_convert_16bpp
+#elif  CONFIG_EXAMPLES_NX_BPP == 32
+#  define RENDERER nxf_convert_32bpp
+#else
+#  error "Unsupported CONFIG_EXAMPLES_NX_BPP"
+#endif
+#endif
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Function Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: nxeg_fillchar
+ ****************************************************************************/
+
+#ifndef CONFIG_EXAMPLES_NX_RAWWINDOWS
+static void nxeg_fillchar(NXWINDOW hwnd, FAR const struct nxgl_rect_s *rect,
+                          FAR const struct nxeg_bitmap_s *bm)
+{
+  struct nxgl_rect_s intersection;
+  int ret;
+
+  /* Get the intersection of the redraw region and the characer bitmap */
+
+  nxgl_rectintersect(&intersection, rect, &bm->bounds);
+  if (!nxgl_nullrect(&intersection))
+    {
+      FAR void *src = (FAR void *)bm->glyph->bitmap;
+      ret = nxtk_bitmapwindow((NXTKWINDOW)hwnd, &intersection, src,
+                              &bm->bounds.pt1,
+                              (unsigned int)bm->glyph->stride);
+#if 0
+EXTERN int nxtk_bitmapwindow(NXTKWINDOW hfwnd,
+                             FAR const struct nxgl_rect_s *dest,
+                             FAR const void *src[CONFIG_NX_NPLANES],
+                             FAR const struct nxgl_point_s *origin,
+                             unsigned int stride);
+#endif
+      if (ret < 0)
+        {
+          message("nxeg_fillchar: nxtk_bitmapwindow failed: %d\n", errno);
+        }
+    }
+}
+#endif
+
+/****************************************************************************
+ * Name: nxeg_kbdinfo
+ ****************************************************************************/
+
+static void nxeg_kbdinfo(ubyte nch, const ubyte *ch)
+{
+  int i;
+  for (i = 0; i < nch; i++)
+    {
+      if (isprint(ch[i]))
+        {
+          message("          ch[%d]=%c (%02x)\n", i, ch[i], ch[i]);
+        }
+      else
+        {
+          message("          ch[%d]=  (%02x)\n", i, ch[i]);
+        }
+    }
+}
+
+/****************************************************************************
+ * Name: nxeg_renderglyph
+ ****************************************************************************/
+
+#ifndef CONFIG_EXAMPLES_NX_RAWWINDOWS
+static inline FAR const struct nxeg_glyph_s *
+nxeg_renderglyph(FAR struct nxeg_state_s *st, ubyte ch)
+{
+  FAR struct nxeg_glyph_s *glyph = NULL;
+  FAR nxgl_mxpixel_t *ptr;
+  int bmstride;
+  int bmsize;
+  int row;
+  int col;
+
+  /* Make sure that there is room for another glyph */
+
+  message("nxeg_renderglyph: ch=%02x\n", ch);
+  if (st->nglyphs < NXTK_MAXKBDCHARS)
+    {
+      /* Allocate the glyph */
+
+      glyph = &st->glyph[st->nglyphs];
+
+      /* Allocate the maximum size for the bitmap */
+
+      glyph->stride = (st->width * CONFIG_EXAMPLES_NX_BPP + 4) / 8;
+      bmsize        =  glyph->stride * st->height;
+      glyph->bitmap = (FAR ubyte *)malloc(bmsize);
+      if (glyph->bitmap)
+        {
+          /* Initialize the glyph memory to the background color */
+
+#if CONFIG_EXAMPLES_NX_BPP < 8 || CONFIG_EXAMPLES_NX_BPP == 24
+# error "Additional logic is needed here"
+#else
+          ptr = (FAR nxgl_mxpixel_t *)glyph->bitmap;
+          for (row = 0; row < st->height; row++)
+            {
+              for (col = 0; col < st->width; col++)
+                {
+                  *ptr++ = st->color[0];
+                }
+            }
+#endif
+          /* Then render the glyph into the allocated memory */
+
+          glyph->width = RENDERER((FAR nxgl_mxpixel_t*)glyph->bitmap,
+                                  st->height, st->width, bmstride,
+                                  ch, CONFIG_EXAMPLES_NX_FONTCOLOR);
+          if (glyph->width <= 0)
+            {
+              message("nxeg_renderglyph: RENDERER returned width=%d\n", glyph->width);
+              free(glyph->bitmap);
+              glyph->bitmap = NULL;
+              glyph         = NULL;
+            }
+          else
+            {
+               /* Make it permanent */
+
+               st->nglyphs++;
+            }
+        }
+    }
+
+  return glyph;
+}
+#endif
+
+/****************************************************************************
+ * Name: nxeg_getglyph
+ ****************************************************************************/
+
+#ifndef CONFIG_EXAMPLES_NX_RAWWINDOWS
+static FAR const struct nxeg_glyph_s *
+nxeg_getglyph(FAR struct nxeg_state_s *st, ubyte ch)
+{
+  int i;
+
+  /* First, try to find the glyph in the cache of pre-rendered glyphs */
+
+  message("nxeg_getglyph: ch=%02x\n", ch);
+  for (i = 0; i < st->nglyphs; i++)
+    {
+      if (st->glyph[i].code == ch)
+        {
+          return &st->glyph[i];
+        }
+    }
+
+   /* No, it is not cached... render it now and add it to the cache */
+
+   return nxeg_renderglyph(st, ch);
+}
+#endif
+
+/****************************************************************************
+ * Name: nxeg_addchar
+ ****************************************************************************/
+
+#ifndef CONFIG_EXAMPLES_NX_RAWWINDOWS
+static FAR const struct nxeg_bitmap_s *
+nxeg_addchar(FAR struct nxeg_state_s *st, ubyte ch)
+{
+  FAR struct nxeg_bitmap_s *bm = NULL;
+  FAR struct nxeg_bitmap_s *bmleft;
+  FAR const struct nx_font_s *fontset;
+  nxgl_coord_t leftx;
+
+  /* Is there space for another character on the display? */
+
+  message("nxeg_addchar: ch=%02x\n", ch);
+  if (st->nchars < NXTK_MAXKBDCHARS)
+    {
+       /* Yes, setup the bitmap */
+
+       bm = &st->bm[st->nchars];
+
+       /* Find the matching glyph */
+
+       bm->glyph = nxeg_getglyph(st, ch);
+       if (!bm->glyph)
+         {
+           return NULL;
+         }
+
+       /* Set up the bounds for the bitmap */
+
+       if (st->nchars <= 0)
+         {
+            /* The first character is one space from the left */
+
+            fontset = nxf_getfontset();
+            leftx   = fontset->spwidth;
+         }
+       else
+         {
+            /* Otherwise, it is to the left of the preceding char */
+
+            bmleft = &st->bm[st->nchars-1];
+            leftx  = bmleft->bounds.pt2.x + 1;
+         }
+
+       bm->bounds.pt1.x = leftx;
+       bm->bounds.pt1.y = 2;
+       bm->bounds.pt2.x = leftx + bm->glyph->width - 1;
+       bm->bounds.pt2.x = 2 + st->height - 1;
+
+       st->nchars++;
+    }
+  return bm;
+}
+#endif
+
+/****************************************************************************
+ * Name: nxeg_addchars
+ ****************************************************************************/
+
+#ifndef CONFIG_EXAMPLES_NX_RAWWINDOWS
+static inline void nxeg_addchars(NXWINDOW hwnd, FAR struct nxeg_state_s *st,
+                                 ubyte nch, FAR const ubyte *ch)
+{
+  FAR const struct nxeg_bitmap_s *bm;
+
+  while (nch--)
+    {
+      bm = nxeg_addchar(st, *ch++);
+      nxeg_fillchar(hwnd, &bm->bounds, bm);
+    }
+}
+#endif
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: nxeg_kbdin
+ ****************************************************************************/
+
+void nxeg_kbdin(NXWINDOW hwnd, ubyte nch, FAR const ubyte *ch, FAR void *arg)
+{
+  FAR struct nxeg_state_s *st = (FAR struct nxeg_state_s *)arg;
+  message("nxeg_kbdin%d: hwnd=%p nch=%d\n", st->wnum, hwnd, nch);
+#ifdef CONFIG_EXAMPLES_NX_RAWWINDOWS
+  nxeg_kbdinfo(nch, ch);
+#else
+  nxeg_addchars(hwnd, st, nch, ch);
+#endif
+}
+
+/****************************************************************************
+ * Name: nxeg_tbkbdin
+ ****************************************************************************/
+
+#ifndef CONFIG_EXAMPLES_NX_RAWWINDOWS
+void nxeg_tbkbdin(NXWINDOW hwnd, ubyte nch, const ubyte *ch, FAR void *arg)
+{
+  FAR struct nxeg_state_s *st = (FAR struct nxeg_state_s *)arg;
+  message("nxeg_tbkbdin: ERROR -- toolbar should not received keyboard input\n");
+  message("nxeg_tbkbdin%d: hwnd=%p nch=%d\n", st->wnum, hwnd, nch);
+  nxeg_kbdinfo(nch, ch);
+}
+#endif
+
+/****************************************************************************
+ * Name: nxeg_tbkbdin
+ ****************************************************************************/
+
+#ifndef CONFIG_EXAMPLES_NX_RAWWINDOWS
+void nxeg_filltext(NXWINDOW hwnd, FAR const struct nxgl_rect_s *rect,
+                   FAR struct nxeg_state_s *st)
+{
+  int i;
+  for (i = 0; i < st->nchars; i++)
+    {
+      nxeg_fillchar(hwnd, rect, &st->bm[i]);
+    }
+}
+#endif
+
+#endif /* CONFIG_NX_KBD */