1 files changed, 127 insertions, 0 deletions
diff --git a/nuttx/graphics/nxfonts/nxfonts_getfont.c b/nuttx/graphics/nxfonts/nxfonts_getfont.c
new file mode 100644
index 000000000..83d8a914d
--- /dev/null
+++ b/nuttx/graphics/nxfonts/nxfonts_getfont.c
@@ -0,0 +1,127 @@
+/****************************************************************************
+ * graphics/nxfonts/nxfonts_getfont.h
+ *
+ *   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 <debug.h>
+#
+#include <nuttx/nxfonts.h>
+
+/****************************************************************************
+ * Pre-Processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: nxf_getfontset
+ *
+ * Description:
+ *   Return information about the font set containtined he selected
+ *   character encoding.
+ *
+ * Input Parameters:
+ *   ch - character code
+ *
+ ****************************************************************************/
+
+FAR const struct nx_fontset_s *nxf_getfontset(uint16 ch)
+{
+  if (ch < 128)
+    {
+      if (ch >= g_7bitfonts.first && ch < g_7bitfonts.first + g_7bitfonts.nchars)
+        {
+          return &g_7bitfonts;
+        }
+      gdbg("No bitmap for 7-bit code %d\n", ch);
+    }
+  else if (ch < 256)
+    {
+#if CONFIG_NXFONTS_CHARBITS >= 8
+      if (ch >= g_8bitfonts.first && ch < g_8bitfonts.first + g_8bitfonts.nchars)
+        {
+          return &g_8bitfonts;
+        }
+      gdbg("No bitmap for 8-bit code %d\n", ch);
+#else
+      gdbg("8-bit font support disabled: %d\n", ch);
+#endif
+    }
+  else
+    {
+      gdbg("16-bit font not currently supported\n");
+    }
+}
+
+/****************************************************************************
+ * Name: nxf_getbitmap
+ *
+ * Description:
+ *   Return font bitmap information for the selected character encoding.
+ *
+ * Input Parameters:
+ *   ch - character code
+ *
+ ****************************************************************************/
+
+FAR const struct nx_fontbitmap_s *nxf_getbitmap(uint16 ch)
+{
+  FAR const struct nx_fontset_s *set = nxf_getfontset(ch);
+  FAR struct nx_fontbitmap_s *bm = NULL;
+
+  if (set)
+    {
+      bm = &set->bitmap[ch - set->first];
+    }
+  return bm;
+}