update for HEAD-2003050101

[reactos.git] / lib / freetype / src / otlayout / otlayout.h

diff --git a/lib/freetype/src/otlayout/otlayout.h b/lib/freetype/src/otlayout/otlayout.h
new file mode 100644 (file)
index 0000000..2cd67f5
--- /dev/null
+++ b/lib/freetype/src/otlayout/otlayout.h
@@ -0,0 +1,205 @@
+#ifndef __OT_LAYOUT_H__
+#define __OT_LAYOUT_H__
+
+
+#include "otlconf.h"
+
+OTL_BEGIN_HEADER
+
+ /************************************************************************/
+ /************************************************************************/
+ /*****                                                              *****/
+ /*****                       BASE DATA TYPES                        *****/
+ /*****                                                              *****/
+ /************************************************************************/
+ /************************************************************************/
+
+  typedef unsigned char     OTL_Byte;
+  typedef const OTL_Byte*   OTL_Bytes;
+
+  typedef int               OTL_Error;
+
+  typedef void*             OTL_Pointer;
+
+  typedef int               OTL_Int;
+  typedef unsigned int      OTL_UInt;
+
+  typedef long              OTL_Long;
+  typedef unsigned long     OTL_ULong;
+
+  typedef short             OTL_Int16;
+  typedef unsigned short    OTL_UInt16;
+
+
+#if OTL_SIZEOF_INT == 4
+
+  typedef int               OTL_Int32;
+  typedef unsigned int      OTL_UInt32;
+
+#elif OTL_SIZEOF_LONG == 4
+
+  typedef long              OTL_Int32;
+  typedef unsigned long     OTL_UInt32;
+
+#else
+#  error "no 32-bits type found"
+#endif
+
+  typedef OTL_UInt32        OTL_Tag;
+
+ /************************************************************************/
+ /************************************************************************/
+ /*****                                                              *****/
+ /*****                       ERROR CODES                            *****/
+ /*****                                                              *****/
+ /************************************************************************/
+ /************************************************************************/
+
+  typedef enum
+  {
+    OTL_Err_Ok = 0,
+    OTL_Err_InvalidArgument,
+    OTL_Err_InvalidFormat,
+    OTL_Err_InvalidOffset,
+
+    OTL_Err_Max
+
+  } OTL_Error;
+
+
+ /************************************************************************/
+ /************************************************************************/
+ /*****                                                              *****/
+ /*****                     MEMORY MANAGEMENT                        *****/
+ /*****                                                              *****/
+ /************************************************************************/
+ /************************************************************************/
+
+  typedef OTL_Pointer  (*OTL_AllocFunc)( OTL_ULong    size,
+                                         OTL_Pointer  data );
+
+  typedef OTL_Pointer  (*OTL_ReallocFunc)( OTL_Pointer   block,
+                                           OTL_ULong     size,
+                                           OTL_Pointer   data );
+
+  typedef void         (*OTL_FreeFunc)( OTL_Pointer  block,
+                                        OTL_Pointer  data );
+
+  typedef struct OTL_MemoryRec_
+  {
+    OTL_Pointer      mem_data;
+    OTL_AllocFunc    mem_alloc;
+    OTL_ReallocFunc  mem_realloc;
+    OTL_FreeFunc     mem_free;
+
+  } OTL_MemoryRec, *OTL_Memory;
+
+ /************************************************************************/
+ /************************************************************************/
+ /*****                                                              *****/
+ /*****                        ENUMERATIONS                          *****/
+ /*****                                                              *****/
+ /************************************************************************/
+ /************************************************************************/
+
+/* re-define OTL_MAKE_TAG to something different if you're not */
+/* using an ASCII-based character set (Vaxes anyone ?)         */
+#ifndef  OTL_MAKE_TAG
+#define  OTL_MAKE_TAG(c1,c2,c3,c4)         \
+           ( ( (OTL_UInt32)(c1) << 24 ) |  \
+               (OTL_UInt32)(c2) << 16 ) |  \
+               (OTL_UInt32)(c3) <<  8 ) |  \
+               (OTL_UInt32)(c4)         )
+#endif
+
+  typedef enum OTL_ScriptTag_
+  {
+    OTL_SCRIPT_NONE = 0,
+
+#define OTL_SCRIPT_TAG(c1,c2,c3,c4,s,n)  OTL_SCRIPT_TAG_ ## n = OTL_MAKE_TAG(c1,c2,c3,c4),
+#include "otltags.h"
+
+    OTL_SCRIPT_MAX
+
+  } OTL_ScriptTag;
+
+
+  typedef enum OTL_LangTag_
+  {
+    OTL_LANG_DEFAULT = 0,
+
+#define OTL_LANG_TAG(c1,c2,c3,c4,s,n)  OTL_LANG_TAG_ ## n = OTL_MAKE_TAG(c1,c2,c3,c4),
+#include "otltags.h"
+
+    OTL_LANG_MAX
+
+  } OTL_LangTag;
+
+
+ /************************************************************************/
+ /************************************************************************/
+ /*****                                                              *****/
+ /*****                       MEMORY READS                           *****/
+ /*****                                                              *****/
+ /************************************************************************/
+ /************************************************************************/
+
+#define  OTL_PEEK_USHORT(p)  ( ((OTL_UInt)((p)[0]) << 8) |  \
+                               ((OTL_UInt)((p)[1])     ) )
+
+#define  OTL_PEEK_ULONG(p)   ( ((OTL_UInt32)((p)[0]) << 24) |  \
+                               ((OTL_UInt32)((p)[1]) << 16) |  \
+                               ((OTL_UInt32)((p)[2]) <<  8) |  \
+                               ((OTL_UInt32)((p)[3])      ) )
+
+#define  OTL_PEEK_SHORT(p)     ((OTL_Int16)OTL_PEEK_USHORT(p))
+
+#define  OTL_PEEK_LONG(p)      ((OTL_Int32)OTL_PEEK_ULONG(p))
+
+#define  OTL_NEXT_USHORT(p)  ( (p) += 2, OTL_PEEK_USHORT((p)-2) )
+#define  OTL_NEXT_ULONG(p)   ( (p) += 4, OTL_PEEK_ULONG((p)-4) )
+
+#define  OTL_NEXT_SHORT(p)   ((OTL_Int16)OTL_NEXT_USHORT(p))
+#define  OTL_NEXT_LONG(p)    ((OTL_Int32)OTL_NEXT_ULONG(p))
+
+ /************************************************************************/
+ /************************************************************************/
+ /*****                                                              *****/
+ /*****                        VALIDATION                            *****/
+ /*****                                                              *****/
+ /************************************************************************/
+ /************************************************************************/
+
+  typedef struct OTL_ValidatorRec_*  OTL_Validator;
+
+  typedef struct OTL_ValidatorRec_
+  {
+    OTL_Bytes    limit;
+    OTL_Bytes    base;
+    OTL_Error    error;
+    OTL_jmp_buf  jump_buffer;
+
+  } OTL_ValidatorRec;
+
+  typedef void  (*OTL_ValidateFunc)( OTL_Bytes  table,
+                                     OTL_Valid  valid );
+
+  OTL_API( void )
+  otl_validator_error( OTL_Validator  validator,
+                       OTL_Error      error );
+
+#define  OTL_INVALID(e)  otl_validator_error( valid, e )
+
+#define  OTL_INVALID_TOO_SHORT  OTL_INVALID( OTL_Err_InvalidOffset )
+#define  OTL_INVALID_DATA       OTL_INVALID( OTL_Err_InvalidFormat )
+
+#define  OTL_CHECK(_count)   OTL_BEGIN_STMNT                       \
+                               if ( p + (_count) > valid->limit )  \
+                                 OTL_INVALID_TOO_SHORT;            \
+                             OTL_END_STMNT
+
+ /* */
+
+OTL_END_HEADER
+
+#endif /* __OPENTYPE_LAYOUT_H__ */