20060303a

1 files changed, 308 insertions, 0 deletions

diff --git a/libfreetype/ftsystem_inf.c b/libfreetype/ftsystem_inf.c
new file mode 100644
index 00000000..9e0a8738
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+++ b/libfreetype/ftsystem_inf.c
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+/***************************************************************************/
+/*                                                                         */
+/*  ftsystem.c                                                             */
+/*                                                                         */
+/*    ANSI-specific FreeType low-level system interface (body).            */
+/*                                                                         */
+/*  Copyright 1996-2001, 2002 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.                                        */
+/*                                                                         */
+/***************************************************************************/
+
+  /*************************************************************************/
+  /*                                                                       */
+  /* This file contains the default interface used by FreeType to access   */
+  /* low-level, i.e. memory management, i/o access as well as thread       */
+  /* synchronisation.  It can be replaced by user-specific routines if     */
+  /* necessary.                                                            */
+  /*                                                                       */
+  /*************************************************************************/
+
+/* This is the Inferno version */
+
+
+#include <ft2build.h>
+#include FT_CONFIG_CONFIG_H
+#include FT_INTERNAL_DEBUG_H
+#include FT_SYSTEM_H
+#include FT_ERRORS_H
+#include FT_TYPES_H
+
+#include "kernel.h"
+
+/*#include <stdio.h>*/
+/*#include <stdlib.h>*/
+
+
+  /*************************************************************************/
+  /*                                                                       */
+  /*                       MEMORY MANAGEMENT INTERFACE                     */
+  /*                                                                       */
+  /*************************************************************************/
+
+  /*************************************************************************/
+  /*                                                                       */
+  /* It is not necessary to do any error checking for the                  */
+  /* allocation-related functions.  This will be done by the higher level  */
+  /* routines like FT_Alloc() or FT_Realloc().                             */
+  /*                                                                       */
+  /*************************************************************************/
+
+
+  /*************************************************************************/
+  /*                                                                       */
+  /* <Function>                                                            */
+  /*    ft_alloc                                                           */
+  /*                                                                       */
+  /* <Description>                                                         */
+  /*    The memory allocation function.                                    */
+  /*                                                                       */
+  /* <Input>                                                               */
+  /*    memory :: A pointer to the memory object.                          */
+  /*                                                                       */
+  /*    size   :: The requested size in bytes.                             */
+  /*                                                                       */
+  /* <Return>                                                              */
+  /*    The address of newly allocated block.                              */
+  /*                                                                       */
+  FT_CALLBACK_DEF( void* )
+  ft_alloc( FT_Memory  memory,
+            long       size )
+  {
+    FT_UNUSED( memory );
+
+    return malloc( size );
+  }
+
+
+  /*************************************************************************/
+  /*                                                                       */
+  /* <Function>                                                            */
+  /*    ft_realloc                                                         */
+  /*                                                                       */
+  /* <Description>                                                         */
+  /*    The memory reallocation function.                                  */
+  /*                                                                       */
+  /* <Input>                                                               */
+  /*    memory   :: A pointer to the memory object.                        */
+  /*                                                                       */
+  /*    cur_size :: The current size of the allocated memory block.        */
+  /*                                                                       */
+  /*    new_size :: The newly requested size in bytes.                     */
+  /*                                                                       */
+  /*    block    :: The current address of the block in memory.            */
+  /*                                                                       */
+  /* <Return>                                                              */
+  /*    The address of the reallocated memory block.                       */
+  /*                                                                       */
+  FT_CALLBACK_DEF( void* )
+  ft_realloc( FT_Memory  memory,
+              long       cur_size,
+              long       new_size,
+              void*      block )
+  {
+    FT_UNUSED( memory );
+    FT_UNUSED( cur_size );
+
+    return realloc( block, new_size );
+  }
+
+
+  /*************************************************************************/
+  /*                                                                       */
+  /* <Function>                                                            */
+  /*    ft_free                                                            */
+  /*                                                                       */
+  /* <Description>                                                         */
+  /*    The memory release function.                                       */
+  /*                                                                       */
+  /* <Input>                                                               */
+  /*    memory  :: A pointer to the memory object.                         */
+  /*                                                                       */
+  /*    block   :: The address of block in memory to be freed.             */
+  /*                                                                       */
+  FT_CALLBACK_DEF( void )
+  ft_free( FT_Memory  memory,
+           void*      block )
+  {
+    FT_UNUSED( memory );
+
+    free( block );
+  }
+
+
+  /*************************************************************************/
+  /*                                                                       */
+  /*                     RESOURCE MANAGEMENT INTERFACE                     */
+  /*                                                                       */
+  /*************************************************************************/
+
+
+  /*************************************************************************/
+  /*                                                                       */
+  /* 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_io
+
+  /* We use the macro STREAM_FD for convenience to extract the       */
+  /* fd from a given FreeType stream object */
+#define STREAM_FD( stream )  ( (int)stream->descriptor.pointer )
+#define CLOSED_FD	(void*)-1
+
+
+  /*************************************************************************/
+  /*                                                                       */
+  /* <Function>                                                            */
+  /*    ft_ansi_stream_close                                               */
+  /*                                                                       */
+  /* <Description>                                                         */
+  /*    The function to close a stream.                                    */
+  /*                                                                       */
+  /* <Input>                                                               */
+  /*    stream :: A pointer to the stream object.                          */
+  /*                                                                       */
+  FT_CALLBACK_DEF( void )
+  ft_ansi_stream_close( FT_Stream  stream )
+  {
+    kclose( STREAM_FD( stream ) );
+
+    stream->descriptor.pointer = CLOSED_FD;
+    stream->size               = 0;
+    stream->base               = 0;
+  }
+
+
+  /*************************************************************************/
+  /*                                                                       */
+  /* <Function>                                                            */
+  /*    ft_ansi_stream_io                                                  */
+  /*                                                                       */
+  /* <Description>                                                         */
+  /*    The function to open a stream.                                     */
+  /*                                                                       */
+  /* <Input>                                                               */
+  /*    stream :: A pointer to the stream object.                          */
+  /*                                                                       */
+  /*    offset :: The position in the data stream to start reading.        */
+  /*                                                                       */
+  /*    buffer :: The address of buffer to store the read data.            */
+  /*                                                                       */
+  /*    count  :: The number of bytes to read from the stream.             */
+  /*                                                                       */
+  /* <Return>                                                              */
+  /*    The number of bytes actually read.                                 */
+  /*                                                                       */
+  FT_CALLBACK_DEF( unsigned long )
+  ft_ansi_stream_io( FT_Stream       stream,
+                     unsigned long   offset,
+                     unsigned char*  buffer,
+                     unsigned long   count )
+  {
+	int fd;
+
+	fd = STREAM_FD( stream );
+	kseek( fd, offset, SEEK_SET );
+	if(count == 0)
+		return 0;
+	return (unsigned long)kread( fd, buffer, count);
+}
+
+
+  /* documentation is in ftobjs.h */
+
+FT_EXPORT_DEF( FT_Error )
+FT_Stream_Open( FT_Stream stream, const char*  filepathname)
+{
+	Dir *dir;
+	int  file;
+
+	if ( !stream )
+		return FT_Err_Invalid_Stream_Handle;
+	file = kopen( (char*)filepathname, OREAD);
+	if ( file < 0) {
+		FT_ERROR(( "FT_Stream_Open:" ));
+		FT_ERROR(( " could not open `%s'\n", filepathname ));
+		return FT_Err_Cannot_Open_Resource;
+	}
+	dir = kdirfstat(file);
+	if (dir == nil) {
+		kclose(file);
+		FT_ERROR(( "FT_Stream_Open:" ));
+		FT_ERROR(( " could not stat `%s'\n", filepathname ));
+		return FT_Err_Cannot_Open_Resource;
+	}
+	stream->size = dir->length;
+	free(dir);
+
+	stream->descriptor.pointer = (void*)file;
+	stream->pathname.pointer = (char*)filepathname;
+	stream->pos = 0;
+
+	stream->read  = ft_ansi_stream_io;
+	stream->close = ft_ansi_stream_close;
+
+	FT_TRACE1(( "FT_Stream_Open:" ));
+	FT_TRACE1(( " opened `%s' (%d bytes) successfully\n",
+		filepathname, stream->size ));
+
+	return FT_Err_Ok;
+}
+
+
+#ifdef FT_DEBUG_MEMORY
+
+  extern FT_Int
+  ft_mem_debug_init( FT_Memory  memory );
+
+  extern void
+  ft_mem_debug_done( FT_Memory  memory );
+
+#endif
+
+
+  /* documentation is in ftobjs.h */
+
+  FT_EXPORT_DEF( FT_Memory )
+  FT_New_Memory( void )
+  {
+    FT_Memory  memory;
+
+
+    memory = (FT_Memory)malloc( sizeof ( *memory ) );
+    if ( memory )
+    {
+      memory->user    = 0;
+      memory->alloc   = ft_alloc;
+      memory->realloc = ft_realloc;
+      memory->free    = ft_free;
+#ifdef FT_DEBUG_MEMORY
+      ft_mem_debug_init( memory );
+#endif
+    }
+
+    return memory;
+  }
+
+
+  /* documentation is in ftobjs.h */
+
+  FT_EXPORT_DEF( void )
+  FT_Done_Memory( FT_Memory  memory )
+  {
+#ifdef FT_DEBUG_MEMORY
+    ft_mem_debug_done( memory );
+#endif
+    memory->free( memory, memory );
+  }
+
+
+/* END */