Initial revision

1 files changed, 169 insertions, 0 deletions

diff --git a/src/base/ftinit.c b/src/base/ftinit.c
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+/***************************************************************************/
+/*                                                                         */
+/*  ftinit.c                                                               */
+/*                                                                         */
+/*    FreeType initialisation layer (body).                                */
+/*                                                                         */
+/*  Copyright 1996-1999 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.                                        */
+/*                                                                         */
+/***************************************************************************/
+
+ /**************************************************************************
+  *
+  *  The purpose of this file is to implement the three following
+  *  functions:
+  *
+  *	 FT_Default_Drivers:
+  *		This function is used to add the set of default drivers
+  *		to a fresh new library object. The set is computed at compile
+  *		time from the Makefiles inclusions in Makefile.lib. See the
+  *		document "FreeType Internals" for more info.
+  *
+  *
+  *	 FT_Init_FreeType:
+  *		This function creates a system object for the current platform,
+  *		builds a library out of it, then calls FT_Default_Drivers
+  *
+  *
+  *	 FT_Done_FreeType:
+  *		This function simply finalise the library and the corresponding
+  *		system object.
+  *
+  *
+  *	 Note that even if FT_Init_FreeType uses the implementation of the
+  *	 system object defined at build time, client applications are still
+  *	 able to provide their own "ftsystem.c"
+  *
+  *
+  *
+  *
+  *
+  ************************************************************************/
+
+#include <ftobjs.h>
+#include <ftdriver.h>
+#include <ftconfig.h>
+#include <ftdebug.h>
+
+#undef  FT_COMPONENT
+#define FT_COMPONENT  trace_init
+
+  /*************************************************************************/
+  /*                                                                       */
+  /* The macros FT_SUPPORT_xxxx are defined by Makefile.lib when this file */
+  /* is compiled.  They come from a make variable called FTINIT_MACROS     */
+  /* which is updated by each driver Makefile.                             */
+  /*                                                                       */
+  /* This means that when a driver isn't part of the build, ftinit.o       */
+  /* won't try to reference it.                                            */
+  /*                                                                       */
+  /*************************************************************************/
+
+#define  FTINIT_DRIVER_CHAIN
+#define  FT_INIT_LAST_DRIVER_CHAIN    ((FT_DriverChain*) 0)
+
+  /* Include the SFNT driver interface if needed */
+
+#ifdef FT_SUPPORT_SFNT
+#include "sfdriver.h"
+#endif
+
+  /* Include the TrueType driver interface if needed */
+
+#ifdef FT_SUPPORT_TRUETYPE
+#include "ttdriver.h"
+#endif
+
+
+  /* Include the Type1 driver interface if needed */
+
+#ifdef FT_SUPPORT_TYPE1
+#include "t1driver.h"
+#endif
+
+
+
+  /*************************************************************************/
+  /*                                                                       */
+  /* <Function>                                                            */
+  /*    FT_Default_Drivers                                                 */
+  /*                                                                       */
+  /* <Description>                                                         */
+  /*    Adds the set of default drivers to a given library object.         */
+  /*                                                                       */
+  /* <Input>                                                               */
+  /*    library :: A handle to a new library object.                       */
+  /*                                                                       */
+  EXPORT_FUNC
+  void  FT_Default_Drivers( FT_Library  library )
+  {
+    FT_Error               error;
+    const FT_DriverChain*  chain = FT_INIT_LAST_DRIVER_CHAIN;
+
+    while (chain)
+    {
+      error = FT_Add_Driver( library, chain->interface );
+
+      /* notify errors, but don't stop */
+      if (error)
+      {
+        FT_ERROR(( "FT.Default_Drivers: cannot install `%s', error = %x\n",
+                   chain->interface->driver_name,
+                   error ));
+      }
+
+      chain = chain->next;
+      error = 0;  /* clear error */
+    }
+  }
+
+
+  /*************************************************************************/
+  /*                                                                       */
+  /* <Function>                                                            */
+  /*    FT_Init_FreeType                                                   */
+  /*                                                                       */
+  /* <Description>                                                         */
+  /*    Initializes a new FreeType library object.  The set of drivers     */
+  /*    that are registered by this function is determined at build time.  */
+  /*                                                                       */
+  /* <Output>                                                              */
+  /*    library :: A handle to a new library object.                       */
+  /*                                                                       */
+  /* <Return>                                                              */
+  /*    Error code.  0 means success.                                      */
+  /*                                                                       */
+  EXPORT_FUNC
+  FT_Error  FT_Init_FreeType( FT_Library*  library )
+  {
+    FT_Error   error;
+    FT_Memory  memory;
+
+    /* First of all, allocate a new system object -this function is part */
+    /* of the system-specific component, i.e. ftsystem.c                 */
+    memory = FT_New_Memory();
+    if (!memory)
+    {
+      FT_ERROR(( "FT_Init_FreeType:" ));
+      FT_ERROR(( " cannot find memory manager" ));
+      return FT_Err_Unimplemented_Feature;
+    }
+    
+    /* builds a library out of it, then fill it with the set of */
+    /* default drivers..										*/
+    error = FT_New_Library( memory, library );
+    if ( !error )
+      FT_Default_Drivers(*library);
+    
+    return error;
+  }
+
+
+/* END */