Add in the 1st version of ECP.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@2832 6f19259b-4bc3-4df7-8a09-765794883524

EdkCompatibilityPkg/Foundation/Library/Dxe/Print/BoxDraw.c

@@ -0,0 +1,212 @@
+/*++
+
+Copyright (c) 2004, Intel Corporation                                                         
+All rights reserved. This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+
+  BoxDraw.c
+
+Abstract:
+  Lib functions to support Box Draw Unicode code pages.
+
+
+
+Revision History
+
+--*/
+
+#include "Tiano.h"
+#include "EfiDriverLib.h"
+
+
+
+typedef struct {
+  CHAR16  Unicode;
+  CHAR8   PcAnsi;
+  CHAR8   Ascii;
+} UNICODE_TO_CHAR;
+
+
+//
+// This list is used to define the valid extend chars.
+// It also provides a mapping from Unicode to PCANSI or
+// ASCII. The ASCII mapping we just made up.
+//
+//
+
+static UNICODE_TO_CHAR UnicodeToPcAnsiOrAscii[] = {
+  BOXDRAW_HORIZONTAL,                 0xc4, L'-', 
+  BOXDRAW_VERTICAL,                   0xb3, L'|',
+  BOXDRAW_DOWN_RIGHT,                 0xda, L'/',
+  BOXDRAW_DOWN_LEFT,                  0xbf, L'\\',
+  BOXDRAW_UP_RIGHT,                   0xc0, L'\\',
+  BOXDRAW_UP_LEFT,                    0xd9, L'/',
+  BOXDRAW_VERTICAL_RIGHT,             0xc3, L'|',
+  BOXDRAW_VERTICAL_LEFT,              0xb4, L'|',
+  BOXDRAW_DOWN_HORIZONTAL,            0xc2, L'+',
+  BOXDRAW_UP_HORIZONTAL,              0xc1, L'+',
+  BOXDRAW_VERTICAL_HORIZONTAL,        0xc5, L'+',
+  BOXDRAW_DOUBLE_HORIZONTAL,          0xcd, L'-',
+  BOXDRAW_DOUBLE_VERTICAL,            0xba, L'|',
+  BOXDRAW_DOWN_RIGHT_DOUBLE,          0xd5, L'/',
+  BOXDRAW_DOWN_DOUBLE_RIGHT,          0xd6, L'/',
+  BOXDRAW_DOUBLE_DOWN_RIGHT,          0xc9, L'/',
+  BOXDRAW_DOWN_LEFT_DOUBLE,           0xb8, L'\\',
+  BOXDRAW_DOWN_DOUBLE_LEFT,           0xb7, L'\\',
+  BOXDRAW_DOUBLE_DOWN_LEFT,           0xbb, L'\\',
+  BOXDRAW_UP_RIGHT_DOUBLE,            0xd4, L'\\',
+  BOXDRAW_UP_DOUBLE_RIGHT,            0xd3, L'\\',
+  BOXDRAW_DOUBLE_UP_RIGHT,            0xc8, L'\\',
+  BOXDRAW_UP_LEFT_DOUBLE,             0xbe, L'/',
+  BOXDRAW_UP_DOUBLE_LEFT,             0xbd, L'/',
+  BOXDRAW_DOUBLE_UP_LEFT,             0xbc, L'/',
+  BOXDRAW_VERTICAL_RIGHT_DOUBLE,      0xc6, L'|',
+  BOXDRAW_VERTICAL_DOUBLE_RIGHT,      0xc7, L'|',
+  BOXDRAW_DOUBLE_VERTICAL_RIGHT,      0xcc, L'|',
+  BOXDRAW_VERTICAL_LEFT_DOUBLE,       0xb5, L'|',
+  BOXDRAW_VERTICAL_DOUBLE_LEFT,       0xb6, L'|',
+  BOXDRAW_DOUBLE_VERTICAL_LEFT,       0xb9, L'|',
+  BOXDRAW_DOWN_HORIZONTAL_DOUBLE,     0xd1, L'+',
+  BOXDRAW_DOWN_DOUBLE_HORIZONTAL,     0xd2, L'+',
+  BOXDRAW_DOUBLE_DOWN_HORIZONTAL,     0xcb, L'+',
+  BOXDRAW_UP_HORIZONTAL_DOUBLE,       0xcf, L'+',
+  BOXDRAW_UP_DOUBLE_HORIZONTAL,       0xd0, L'+',
+  BOXDRAW_DOUBLE_UP_HORIZONTAL,       0xca, L'+',
+  BOXDRAW_VERTICAL_HORIZONTAL_DOUBLE, 0xd8, L'+',
+  BOXDRAW_VERTICAL_DOUBLE_HORIZONTAL, 0xd7, L'+',
+  BOXDRAW_DOUBLE_VERTICAL_HORIZONTAL, 0xce, L'+',
+
+  BLOCKELEMENT_FULL_BLOCK,            0xdb, L'*',
+  BLOCKELEMENT_LIGHT_SHADE,           0xb0, L'+',
+
+  GEOMETRICSHAPE_UP_TRIANGLE,         0x1e, L'^',
+  GEOMETRICSHAPE_RIGHT_TRIANGLE,      0x10, L'>',
+  GEOMETRICSHAPE_DOWN_TRIANGLE,       0x1f, L'v',
+  GEOMETRICSHAPE_LEFT_TRIANGLE,       0x11, L'<',
+
+  ARROW_LEFT,                         0x3c, L'<',
+
+  ARROW_UP,                           0x18, L'^',
+
+  ARROW_RIGHT,                        0x3e, L'>',
+
+  ARROW_DOWN,                         0x19, L'v',
+  
+  0x0000, 0x00
+};
+
+
+BOOLEAN
+LibIsValidTextGraphics (
+  IN  CHAR16  Graphic,
+  OUT CHAR8   *PcAnsi,    OPTIONAL
+  OUT CHAR8   *Ascii      OPTIONAL
+  )
+/*++
+
+Routine Description:
+
+    Detects if a Unicode char is for Box Drawing text graphics.
+
+Arguments:
+
+    Grphic  - Unicode char to test.
+
+    PcAnsi  - Optional pointer to return PCANSI equivalent of Graphic.
+
+    Asci    - Optional pointer to return Ascii equivalent of Graphic.
+
+Returns:
+
+    TRUE if Gpaphic is a supported Unicode Box Drawing character.
+
+--*/
+{
+  UNICODE_TO_CHAR     *Table;
+
+  if ((((Graphic & 0xff00) != 0x2500) && ((Graphic & 0xff00) != 0x2100))) {
+   
+    //
+    // Unicode drawing code charts are all in the 0x25xx range, 
+    //  arrows are 0x21xx
+    //
+    return FALSE;
+  }
+
+  for (Table = UnicodeToPcAnsiOrAscii; Table->Unicode != 0x0000; Table++) {
+    if (Graphic == Table->Unicode) {
+      if (PcAnsi != NULL) {
+        *PcAnsi = Table->PcAnsi; 
+      }
+      if (Ascii != NULL) {
+        *Ascii = Table->Ascii;
+      }
+      return TRUE;
+    }
+  }
+  return FALSE;
+}
+
+
+BOOLEAN
+IsValidAscii (
+  IN  CHAR16  Ascii
+  )
+/*++
+
+Routine Description:
+
+  Is it valid ascii char?  
+
+Arguments:
+
+  Ascii                 - The char to check
+
+Returns: 
+
+  TRUE                  - Is a ascii char
+  FALSE                 - Not a ascii char
+
+--*/
+{
+  if ((Ascii >= 0x20) && (Ascii <= 0x7f)) {
+    return TRUE;
+  }              
+  return FALSE;
+}
+
+
+BOOLEAN
+IsValidEfiCntlChar (
+  IN  CHAR16  CharC
+  )
+/*++
+
+Routine Description:
+
+  Is it valid EFI control char?  
+
+Arguments:
+
+  Ascii                 - The char to check
+
+Returns: 
+
+  TRUE                  - Is a valid EFI control char
+  FALSE                 - Not a valid EFI control char
+
+--*/
+{
+  if (CharC == CHAR_NULL || CharC == CHAR_BACKSPACE || CharC == CHAR_LINEFEED || CharC == CHAR_CARRIAGE_RETURN) {
+    return TRUE;
+  }              
+  return FALSE;
+}
+