Initial import from the monolithic Qt.

This is the beginning of revision history for this module. If you
want to look at revision history older than this, please refer to the
Qt Git wiki for how to use Git history grafting. At the time of
writing, this wiki is located here:

http://qt.gitorious.org/qt/pages/GitIntroductionWithQt

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Branched from the monolithic repo, Qt master branch, at commit
896db169ea224deb96c59ce8af800d019de63f12

1 files changed, 846 insertions, 0 deletions

diff --git a/src/3rdparty/freetype/src/base/ftstream.c b/src/3rdparty/freetype/src/base/ftstream.c
new file mode 100644
index 0000000000..901b6835ba
--- /dev/null
+++ b/src/3rdparty/freetype/src/base/ftstream.c
@@ -0,0 +1,846 @@
+/***************************************************************************/
+/*                                                                         */
+/*  ftstream.c                                                             */
+/*                                                                         */
+/*    I/O stream support (body).                                           */
+/*                                                                         */
+/*  Copyright 2000-2001, 2002, 2004, 2005, 2006, 2008 by                   */
+/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
+/*                                                                         */
+/*  This file is part of the FreeType project, and may only be used,       */
+/*  modified, and distributed under the terms of the FreeType project      */
+/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
+/*  this file you indicate that you have read the license and              */
+/*  understand and accept it fully.                                        */
+/*                                                                         */
+/***************************************************************************/
+
+
+#include <ft2build.h>
+#include FT_INTERNAL_STREAM_H
+#include FT_INTERNAL_DEBUG_H
+
+
+  /*************************************************************************/
+  /*                                                                       */
+  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
+  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
+  /* messages during execution.                                            */
+  /*                                                                       */
+#undef  FT_COMPONENT
+#define FT_COMPONENT  trace_stream
+
+
+  FT_BASE_DEF( void )
+  FT_Stream_OpenMemory( FT_Stream       stream,
+                        const FT_Byte*  base,
+                        FT_ULong        size )
+  {
+    stream->base   = (FT_Byte*) base;
+    stream->size   = size;
+    stream->pos    = 0;
+    stream->cursor = 0;
+    stream->read   = 0;
+    stream->close  = 0;
+  }
+
+
+  FT_BASE_DEF( void )
+  FT_Stream_Close( FT_Stream  stream )
+  {
+    if ( stream && stream->close )
+      stream->close( stream );
+  }
+
+
+  FT_BASE_DEF( FT_Error )
+  FT_Stream_Seek( FT_Stream  stream,
+                  FT_ULong   pos )
+  {
+    FT_Error  error = FT_Err_Ok;
+
+
+    stream->pos = pos;
+
+    if ( stream->read )
+    {
+      if ( stream->read( stream, pos, 0, 0 ) )
+      {
+        FT_ERROR(( "FT_Stream_Seek: invalid i/o; pos = 0x%lx, size = 0x%lx\n",
+                   pos, stream->size ));
+
+        error = FT_Err_Invalid_Stream_Operation;
+      }
+    }
+    /* note that seeking to the first position after the file is valid */
+    else if ( pos > stream->size )
+    {
+      FT_ERROR(( "FT_Stream_Seek: invalid i/o; pos = 0x%lx, size = 0x%lx\n",
+                 pos, stream->size ));
+
+      error = FT_Err_Invalid_Stream_Operation;
+    }
+
+    return error;
+  }
+
+
+  FT_BASE_DEF( FT_Error )
+  FT_Stream_Skip( FT_Stream  stream,
+                  FT_Long    distance )
+  {
+    if ( distance < 0 )
+      return FT_Err_Invalid_Stream_Operation;
+
+    return FT_Stream_Seek( stream, (FT_ULong)( stream->pos + distance ) );
+  }
+
+
+  FT_BASE_DEF( FT_Long )
+  FT_Stream_Pos( FT_Stream  stream )
+  {
+    return stream->pos;
+  }
+
+
+  FT_BASE_DEF( FT_Error )
+  FT_Stream_Read( FT_Stream  stream,
+                  FT_Byte*   buffer,
+                  FT_ULong   count )
+  {
+    return FT_Stream_ReadAt( stream, stream->pos, buffer, count );
+  }
+
+
+  FT_BASE_DEF( FT_Error )
+  FT_Stream_ReadAt( FT_Stream  stream,
+                    FT_ULong   pos,
+                    FT_Byte*   buffer,
+                    FT_ULong   count )
+  {
+    FT_Error  error = FT_Err_Ok;
+    FT_ULong  read_bytes;
+
+
+    if ( pos >= stream->size )
+    {
+      FT_ERROR(( "FT_Stream_ReadAt: invalid i/o; pos = 0x%lx, size = 0x%lx\n",
+                 pos, stream->size ));
+
+      return FT_Err_Invalid_Stream_Operation;
+    }
+
+    if ( stream->read )
+      read_bytes = stream->read( stream, pos, buffer, count );
+    else
+    {
+      read_bytes = stream->size - pos;
+      if ( read_bytes > count )
+        read_bytes = count;
+
+      FT_MEM_COPY( buffer, stream->base + pos, read_bytes );
+    }
+
+    stream->pos = pos + read_bytes;
+
+    if ( read_bytes < count )
+    {
+      FT_ERROR(( "FT_Stream_ReadAt:" ));
+      FT_ERROR(( " invalid read; expected %lu bytes, got %lu\n",
+                 count, read_bytes ));
+
+      error = FT_Err_Invalid_Stream_Operation;
+    }
+
+    return error;
+  }
+
+
+  FT_BASE_DEF( FT_ULong )
+  FT_Stream_TryRead( FT_Stream  stream,
+                     FT_Byte*   buffer,
+                     FT_ULong   count )
+  {
+    FT_ULong  read_bytes = 0;
+
+
+    if ( stream->pos >= stream->size )
+      goto Exit;
+
+    if ( stream->read )
+      read_bytes = stream->read( stream, stream->pos, buffer, count );
+    else
+    {
+      read_bytes = stream->size - stream->pos;
+      if ( read_bytes > count )
+        read_bytes = count;
+
+      FT_MEM_COPY( buffer, stream->base + stream->pos, read_bytes );
+    }
+
+    stream->pos += read_bytes;
+
+  Exit:
+    return read_bytes;
+  }
+
+
+  FT_BASE_DEF( FT_Error )
+  FT_Stream_ExtractFrame( FT_Stream  stream,
+                          FT_ULong   count,
+                          FT_Byte**  pbytes )
+  {
+    FT_Error  error;
+
+
+    error = FT_Stream_EnterFrame( stream, count );
+    if ( !error )
+    {
+      *pbytes = (FT_Byte*)stream->cursor;
+
+      /* equivalent to FT_Stream_ExitFrame(), with no memory block release */
+      stream->cursor = 0;
+      stream->limit  = 0;
+    }
+
+    return error;
+  }
+
+
+  FT_BASE_DEF( void )
+  FT_Stream_ReleaseFrame( FT_Stream  stream,
+                          FT_Byte**  pbytes )
+  {
+    if ( stream && stream->read )
+    {
+      FT_Memory  memory = stream->memory;
+
+#ifdef FT_DEBUG_MEMORY
+      ft_mem_free( memory, *pbytes );
+      *pbytes = NULL;
+#else
+      FT_FREE( *pbytes );
+#endif
+    }
+    *pbytes = 0;
+  }
+
+
+  FT_BASE_DEF( FT_Error )
+  FT_Stream_EnterFrame( FT_Stream  stream,
+                        FT_ULong   count )
+  {
+    FT_Error  error = FT_Err_Ok;
+    FT_ULong  read_bytes;
+
+
+    /* check for nested frame access */
+    FT_ASSERT( stream && stream->cursor == 0 );
+
+    if ( stream->read )
+    {
+      /* allocate the frame in memory */
+      FT_Memory  memory = stream->memory;
+
+#ifdef FT_DEBUG_MEMORY
+      /* assume _ft_debug_file and _ft_debug_lineno are already set */
+      stream->base = (unsigned char*)ft_mem_qalloc( memory, count, &error );
+      if ( error )
+        goto Exit;
+#else
+      if ( FT_QALLOC( stream->base, count ) )
+        goto Exit;
+#endif
+      /* read it */
+      read_bytes = stream->read( stream, stream->pos,
+                                 stream->base, count );
+      if ( read_bytes < count )
+      {
+        FT_ERROR(( "FT_Stream_EnterFrame:" ));
+        FT_ERROR(( " invalid read; expected %lu bytes, got %lu\n",
+                   count, read_bytes ));
+
+        FT_FREE( stream->base );
+        error = FT_Err_Invalid_Stream_Operation;
+      }
+      stream->cursor = stream->base;
+      stream->limit  = stream->cursor + count;
+      stream->pos   += read_bytes;
+    }
+    else
+    {
+      /* check current and new position */
+      if ( stream->pos >= stream->size        ||
+           stream->pos + count > stream->size )
+      {
+        FT_ERROR(( "FT_Stream_EnterFrame:" ));
+        FT_ERROR(( " invalid i/o; pos = 0x%lx, count = %lu, size = 0x%lx\n",
+                   stream->pos, count, stream->size ));
+
+        error = FT_Err_Invalid_Stream_Operation;
+        goto Exit;
+      }
+
+      /* set cursor */
+      stream->cursor = stream->base + stream->pos;
+      stream->limit  = stream->cursor + count;
+      stream->pos   += count;
+    }
+
+  Exit:
+    return error;
+  }
+
+
+  FT_BASE_DEF( void )
+  FT_Stream_ExitFrame( FT_Stream  stream )
+  {
+    /* IMPORTANT: The assertion stream->cursor != 0 was removed, given    */
+    /*            that it is possible to access a frame of length 0 in    */
+    /*            some weird fonts (usually, when accessing an array of   */
+    /*            0 records, like in some strange kern tables).           */
+    /*                                                                    */
+    /*  In this case, the loader code handles the 0-length table          */
+    /*  gracefully; however, stream.cursor is really set to 0 by the      */
+    /*  FT_Stream_EnterFrame() call, and this is not an error.            */
+    /*                                                                    */
+    FT_ASSERT( stream );
+
+    if ( stream->read )
+    {
+      FT_Memory  memory = stream->memory;
+
+#ifdef FT_DEBUG_MEMORY
+      ft_mem_free( memory, stream->base );
+      stream->base = NULL;
+#else
+      FT_FREE( stream->base );
+#endif
+    }
+    stream->cursor = 0;
+    stream->limit  = 0;
+  }
+
+
+  FT_BASE_DEF( FT_Char )
+  FT_Stream_GetChar( FT_Stream  stream )
+  {
+    FT_Char  result;
+
+
+    FT_ASSERT( stream && stream->cursor );
+
+    result = 0;
+    if ( stream->cursor < stream->limit )
+      result = *stream->cursor++;
+
+    return result;
+  }
+
+
+  FT_BASE_DEF( FT_Short )
+  FT_Stream_GetShort( FT_Stream  stream )
+  {
+    FT_Byte*  p;
+    FT_Short  result;
+
+
+    FT_ASSERT( stream && stream->cursor );
+
+    result         = 0;
+    p              = stream->cursor;
+    if ( p + 1 < stream->limit )
+      result       = FT_NEXT_SHORT( p );
+    stream->cursor = p;
+
+    return result;
+  }
+
+
+  FT_BASE_DEF( FT_Short )
+  FT_Stream_GetShortLE( FT_Stream  stream )
+  {
+    FT_Byte*  p;
+    FT_Short  result;
+
+
+    FT_ASSERT( stream && stream->cursor );
+
+    result         = 0;
+    p              = stream->cursor;
+    if ( p + 1 < stream->limit )
+      result       = FT_NEXT_SHORT_LE( p );
+    stream->cursor = p;
+
+    return result;
+  }
+
+
+  FT_BASE_DEF( FT_Long )
+  FT_Stream_GetOffset( FT_Stream  stream )
+  {
+    FT_Byte*  p;
+    FT_Long   result;
+
+
+    FT_ASSERT( stream && stream->cursor );
+
+    result         = 0;
+    p              = stream->cursor;
+    if ( p + 2 < stream->limit )
+      result       = FT_NEXT_OFF3( p );
+    stream->cursor = p;
+    return result;
+  }
+
+
+  FT_BASE_DEF( FT_Long )
+  FT_Stream_GetLong( FT_Stream  stream )
+  {
+    FT_Byte*  p;
+    FT_Long   result;
+
+
+    FT_ASSERT( stream && stream->cursor );
+
+    result         = 0;
+    p              = stream->cursor;
+    if ( p + 3 < stream->limit )
+      result       = FT_NEXT_LONG( p );
+    stream->cursor = p;
+    return result;
+  }
+
+
+  FT_BASE_DEF( FT_Long )
+  FT_Stream_GetLongLE( FT_Stream  stream )
+  {
+    FT_Byte*  p;
+    FT_Long   result;
+
+
+    FT_ASSERT( stream && stream->cursor );
+
+    result         = 0;
+    p              = stream->cursor;
+    if ( p + 3 < stream->limit )
+      result       = FT_NEXT_LONG_LE( p );
+    stream->cursor = p;
+    return result;
+  }
+
+
+  FT_BASE_DEF( FT_Char )
+  FT_Stream_ReadChar( FT_Stream  stream,
+                      FT_Error*  error )
+  {
+    FT_Byte  result = 0;
+
+
+    FT_ASSERT( stream );
+
+    *error = FT_Err_Ok;
+
+    if ( stream->read )
+    {
+      if ( stream->read( stream, stream->pos, &result, 1L ) != 1L )
+        goto Fail;
+    }
+    else
+    {
+      if ( stream->pos < stream->size )
+        result = stream->base[stream->pos];
+      else
+        goto Fail;
+    }
+    stream->pos++;
+
+    return result;
+
+  Fail:
+    *error = FT_Err_Invalid_Stream_Operation;
+    FT_ERROR(( "FT_Stream_ReadChar: invalid i/o; pos = 0x%lx, size = 0x%lx\n",
+               stream->pos, stream->size ));
+
+    return 0;
+  }
+
+
+  FT_BASE_DEF( FT_Short )
+  FT_Stream_ReadShort( FT_Stream  stream,
+                       FT_Error*  error )
+  {
+    FT_Byte   reads[2];
+    FT_Byte*  p = 0;
+    FT_Short  result = 0;
+
+
+    FT_ASSERT( stream );
+
+    *error = FT_Err_Ok;
+
+    if ( stream->pos + 1 < stream->size )
+    {
+      if ( stream->read )
+      {
+        if ( stream->read( stream, stream->pos, reads, 2L ) != 2L )
+          goto Fail;
+
+        p = reads;
+      }
+      else
+      {
+        p = stream->base + stream->pos;
+      }
+
+      if ( p )
+        result = FT_NEXT_SHORT( p );
+    }
+    else
+      goto Fail;
+
+    stream->pos += 2;
+
+    return result;
+
+  Fail:
+    *error = FT_Err_Invalid_Stream_Operation;
+    FT_ERROR(( "FT_Stream_ReadShort:" ));
+    FT_ERROR(( " invalid i/o; pos = 0x%lx, size = 0x%lx\n",
+               stream->pos, stream->size ));
+
+    return 0;
+  }
+
+
+  FT_BASE_DEF( FT_Short )
+  FT_Stream_ReadShortLE( FT_Stream  stream,
+                         FT_Error*  error )
+  {
+    FT_Byte   reads[2];
+    FT_Byte*  p = 0;
+    FT_Short  result = 0;
+
+
+    FT_ASSERT( stream );
+
+    *error = FT_Err_Ok;
+
+    if ( stream->pos + 1 < stream->size )
+    {
+      if ( stream->read )
+      {
+        if ( stream->read( stream, stream->pos, reads, 2L ) != 2L )
+          goto Fail;
+
+        p = reads;
+      }
+      else
+      {
+        p = stream->base + stream->pos;
+      }
+
+      if ( p )
+        result = FT_NEXT_SHORT_LE( p );
+    }
+    else
+      goto Fail;
+
+    stream->pos += 2;
+
+    return result;
+
+  Fail:
+    *error = FT_Err_Invalid_Stream_Operation;
+    FT_ERROR(( "FT_Stream_ReadShortLE:" ));
+    FT_ERROR(( " invalid i/o; pos = 0x%lx, size = 0x%lx\n",
+               stream->pos, stream->size ));
+
+    return 0;
+  }
+
+
+  FT_BASE_DEF( FT_Long )
+  FT_Stream_ReadOffset( FT_Stream  stream,
+                        FT_Error*  error )
+  {
+    FT_Byte   reads[3];
+    FT_Byte*  p = 0;
+    FT_Long   result = 0;
+
+
+    FT_ASSERT( stream );
+
+    *error = FT_Err_Ok;
+
+    if ( stream->pos + 2 < stream->size )
+    {
+      if ( stream->read )
+      {
+        if (stream->read( stream, stream->pos, reads, 3L ) != 3L )
+          goto Fail;
+
+        p = reads;
+      }
+      else
+      {
+        p = stream->base + stream->pos;
+      }
+
+      if ( p )
+        result = FT_NEXT_OFF3( p );
+    }
+    else
+      goto Fail;
+
+    stream->pos += 3;
+
+    return result;
+
+  Fail:
+    *error = FT_Err_Invalid_Stream_Operation;
+    FT_ERROR(( "FT_Stream_ReadOffset:" ));
+    FT_ERROR(( " invalid i/o; pos = 0x%lx, size = 0x%lx\n",
+               stream->pos, stream->size ));
+
+    return 0;
+  }
+
+
+  FT_BASE_DEF( FT_Long )
+  FT_Stream_ReadLong( FT_Stream  stream,
+                      FT_Error*  error )
+  {
+    FT_Byte   reads[4];
+    FT_Byte*  p = 0;
+    FT_Long   result = 0;
+
+
+    FT_ASSERT( stream );
+
+    *error = FT_Err_Ok;
+
+    if ( stream->pos + 3 < stream->size )
+    {
+      if ( stream->read )
+      {
+        if ( stream->read( stream, stream->pos, reads, 4L ) != 4L )
+          goto Fail;
+
+        p = reads;
+      }
+      else
+      {
+        p = stream->base + stream->pos;
+      }
+
+      if ( p )
+        result = FT_NEXT_LONG( p );
+    }
+    else
+      goto Fail;
+
+    stream->pos += 4;
+
+    return result;
+
+  Fail:
+    FT_ERROR(( "FT_Stream_ReadLong: invalid i/o; pos = 0x%lx, size = 0x%lx\n",
+               stream->pos, stream->size ));
+    *error = FT_Err_Invalid_Stream_Operation;
+
+    return 0;
+  }
+
+
+  FT_BASE_DEF( FT_Long )
+  FT_Stream_ReadLongLE( FT_Stream  stream,
+                        FT_Error*  error )
+  {
+    FT_Byte   reads[4];
+    FT_Byte*  p = 0;
+    FT_Long   result = 0;
+
+
+    FT_ASSERT( stream );
+
+    *error = FT_Err_Ok;
+
+    if ( stream->pos + 3 < stream->size )
+    {
+      if ( stream->read )
+      {
+        if ( stream->read( stream, stream->pos, reads, 4L ) != 4L )
+          goto Fail;
+
+        p = reads;
+      }
+      else
+      {
+        p = stream->base + stream->pos;
+      }
+
+      if ( p )
+        result = FT_NEXT_LONG_LE( p );
+    }
+    else
+      goto Fail;
+
+    stream->pos += 4;
+
+    return result;
+
+  Fail:
+    FT_ERROR(( "FT_Stream_ReadLongLE:" ));
+    FT_ERROR(( " invalid i/o; pos = 0x%lx, size = 0x%lx\n",
+               stream->pos, stream->size ));
+    *error = FT_Err_Invalid_Stream_Operation;
+
+    return 0;
+  }
+
+
+  FT_BASE_DEF( FT_Error )
+  FT_Stream_ReadFields( FT_Stream              stream,
+                        const FT_Frame_Field*  fields,
+                        void*                  structure )
+  {
+    FT_Error  error;
+    FT_Bool   frame_accessed = 0;
+    FT_Byte*  cursor;
+
+    if ( !fields || !stream )
+      return FT_Err_Invalid_Argument;
+
+    cursor = stream->cursor;
+
+    error = FT_Err_Ok;
+    do
+    {
+      FT_ULong  value;
+      FT_Int    sign_shift;
+      FT_Byte*  p;
+
+
+      switch ( fields->value )
+      {
+      case ft_frame_start:  /* access a new frame */
+        error = FT_Stream_EnterFrame( stream, fields->offset );
+        if ( error )
+          goto Exit;
+
+        frame_accessed = 1;
+        cursor         = stream->cursor;
+        fields++;
+        continue;  /* loop! */
+
+      case ft_frame_bytes:  /* read a byte sequence */
+      case ft_frame_skip:   /* skip some bytes      */
+        {
+          FT_UInt  len = fields->size;
+
+
+          if ( cursor + len > stream->limit )
+          {
+            error = FT_Err_Invalid_Stream_Operation;
+            goto Exit;
+          }
+
+          if ( fields->value == ft_frame_bytes )
+          {
+            p = (FT_Byte*)structure + fields->offset;
+            FT_MEM_COPY( p, cursor, len );
+          }
+          cursor += len;
+          fields++;
+          continue;
+        }
+
+      case ft_frame_byte:
+      case ft_frame_schar:  /* read a single byte */
+        value = FT_NEXT_BYTE(cursor);
+        sign_shift = 24;
+        break;
+
+      case ft_frame_short_be:
+      case ft_frame_ushort_be:  /* read a 2-byte big-endian short */
+        value = FT_NEXT_USHORT(cursor);
+        sign_shift = 16;
+        break;
+
+      case ft_frame_short_le:
+      case ft_frame_ushort_le:  /* read a 2-byte little-endian short */
+        value = FT_NEXT_USHORT_LE(cursor);
+        sign_shift = 16;
+        break;
+
+      case ft_frame_long_be:
+      case ft_frame_ulong_be:  /* read a 4-byte big-endian long */
+        value = FT_NEXT_ULONG(cursor);
+        sign_shift = 0;
+        break;
+
+      case ft_frame_long_le:
+      case ft_frame_ulong_le:  /* read a 4-byte little-endian long */
+        value = FT_NEXT_ULONG_LE(cursor);
+        sign_shift = 0;
+        break;
+
+      case ft_frame_off3_be:
+      case ft_frame_uoff3_be:  /* read a 3-byte big-endian long */
+        value = FT_NEXT_UOFF3(cursor);
+        sign_shift = 8;
+        break;
+
+      case ft_frame_off3_le:
+      case ft_frame_uoff3_le:  /* read a 3-byte little-endian long */
+        value = FT_NEXT_UOFF3_LE(cursor);
+        sign_shift = 8;
+        break;
+
+      default:
+        /* otherwise, exit the loop */
+        stream->cursor = cursor;
+        goto Exit;
+      }
+
+      /* now, compute the signed value is necessary */
+      if ( fields->value & FT_FRAME_OP_SIGNED )
+        value = (FT_ULong)( (FT_Int32)( value << sign_shift ) >> sign_shift );
+
+      /* finally, store the value in the object */
+
+      p = (FT_Byte*)structure + fields->offset;
+      switch ( fields->size )
+      {
+      case (8 / FT_CHAR_BIT):
+        *(FT_Byte*)p = (FT_Byte)value;
+        break;
+
+      case (16 / FT_CHAR_BIT):
+        *(FT_UShort*)p = (FT_UShort)value;
+        break;
+
+      case (32 / FT_CHAR_BIT):
+        *(FT_UInt32*)p = (FT_UInt32)value;
+        break;
+
+      default:  /* for 64-bit systems */
+        *(FT_ULong*)p = (FT_ULong)value;
+      }
+
+      /* go to next field */
+      fields++;
+    }
+    while ( 1 );
+
+  Exit:
+    /* close the frame if it was opened by this read */
+    if ( frame_accessed )
+      FT_Stream_ExitFrame( stream );
+
+    return error;
+  }
+
+
+/* END */