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authorAkira Kakuto <kakuto@fuk.kindai.ac.jp>2021-08-29 03:23:39 +0000
committerAkira Kakuto <kakuto@fuk.kindai.ac.jp>2021-08-29 03:23:39 +0000
commitbbf1dbf0b3d1816a776bb343fe3d7053ded7edaa (patch)
tree2bec0223c338750826e348165a25ff886ff7af01 /Build/source/libs/freetype2/freetype-src/builds/windows/ftsystem.c
parent5003f15f368f1ae0e925f78bf482c98fe06e68ba (diff)
freetype 2.11.0
git-svn-id: svn://tug.org/texlive/trunk@60354 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Build/source/libs/freetype2/freetype-src/builds/windows/ftsystem.c')
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1 files changed, 386 insertions, 0 deletions
diff --git a/Build/source/libs/freetype2/freetype-src/builds/windows/ftsystem.c b/Build/source/libs/freetype2/freetype-src/builds/windows/ftsystem.c
new file mode 100644
index 00000000000..cb1c7340e9f
--- /dev/null
+++ b/Build/source/libs/freetype2/freetype-src/builds/windows/ftsystem.c
@@ -0,0 +1,386 @@
+/****************************************************************************
+ *
+ * ftsystem.c
+ *
+ * Windows-specific FreeType low-level system interface (body).
+ *
+ * Copyright (C) 2021 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>
+ /* we use our special ftconfig.h file, not the standard one */
+#include FT_CONFIG_CONFIG_H
+#include <freetype/internal/ftdebug.h>
+#include <freetype/ftsystem.h>
+#include <freetype/fterrors.h>
+#include <freetype/fttypes.h>
+#include <freetype/internal/ftstream.h>
+
+ /* memory-mapping includes and definitions */
+#include <windows.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_mem_alloc() or ft_mem_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 io
+
+ /* We use the macro STREAM_FILE for convenience to extract the */
+ /* system-specific stream handle from a given FreeType stream object */
+#define STREAM_FILE( stream ) ( (FILE*)stream->descriptor.pointer )
+
+
+ /**************************************************************************
+ *
+ * @Function:
+ * ft_close_stream_by_munmap
+ *
+ * @Description:
+ * The function to close a stream which is opened by mmap.
+ *
+ * @Input:
+ * stream :: A pointer to the stream object.
+ */
+ FT_CALLBACK_DEF( void )
+ ft_close_stream_by_munmap( FT_Stream stream )
+ {
+ UnmapViewOfFile( (LPCVOID)stream->descriptor.pointer );
+
+ stream->descriptor.pointer = NULL;
+ stream->size = 0;
+ stream->base = 0;
+ }
+
+
+ /**************************************************************************
+ *
+ * @Function:
+ * ft_close_stream_by_free
+ *
+ * @Description:
+ * The function to close a stream which is created by ft_alloc.
+ *
+ * @Input:
+ * stream :: A pointer to the stream object.
+ */
+ FT_CALLBACK_DEF( void )
+ ft_close_stream_by_free( FT_Stream stream )
+ {
+ ft_free( NULL, stream->descriptor.pointer );
+
+ stream->descriptor.pointer = NULL;
+ stream->size = 0;
+ stream->base = 0;
+ }
+
+
+ /* documentation is in ftobjs.h */
+
+ FT_BASE_DEF( FT_Error )
+ FT_Stream_Open( FT_Stream stream,
+ const char* filepathname )
+ {
+ HANDLE file;
+ HANDLE fm;
+ LARGE_INTEGER size;
+
+
+ if ( !stream )
+ return FT_THROW( Invalid_Stream_Handle );
+
+ /* open the file */
+ file = CreateFileA( filepathname, GENERIC_READ, FILE_SHARE_READ, NULL,
+ OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0 );
+ if ( file == INVALID_HANDLE_VALUE )
+ {
+ FT_ERROR(( "FT_Stream_Open:" ));
+ FT_ERROR(( " could not open `%s'\n", filepathname ));
+ return FT_THROW( Cannot_Open_Resource );
+ }
+
+ if ( GetFileSizeEx( file, &size ) == FALSE )
+ {
+ FT_ERROR(( "FT_Stream_Open:" ));
+ FT_ERROR(( " could not retrieve size of file `%s'\n", filepathname ));
+ goto Fail_Open;
+ }
+
+ /* `stream->size' is typedef'd to unsigned long (in `ftsystem.h'); */
+ /* So avoid overflow caused by fonts in huge files larger than */
+ /* 2GB, do a test. */
+ if ( size.QuadPart > LONG_MAX )
+ {
+ FT_ERROR(( "FT_Stream_Open: file is too big\n" ));
+ goto Fail_Open;
+ }
+ else if ( size.QuadPart == 0 )
+ {
+ FT_ERROR(( "FT_Stream_Open: zero-length file\n" ));
+ goto Fail_Open;
+ }
+
+ fm = CreateFileMapping( file, NULL, PAGE_READONLY, 0, 0, NULL );
+ if ( fm == NULL )
+ {
+ FT_ERROR(( "FT_Stream_Open: can not map file\n" ));
+ goto Fail_Open;
+ }
+
+ /* Store only the low part of this 64 bits integer because long is */
+ /* a 32 bits type. Anyway, a check has been done above to forbid */
+ /* a size greater than LONG_MAX */
+ stream->size = size.LowPart;
+ stream->pos = 0;
+ stream->base = (unsigned char *)
+ MapViewOfFile( fm, FILE_MAP_READ, 0, 0, 0 );
+
+ CloseHandle( fm );
+
+ if ( stream->base != NULL )
+ stream->close = ft_close_stream_by_munmap;
+ else
+ {
+ DWORD total_read_count;
+
+
+ FT_ERROR(( "FT_Stream_Open:" ));
+ FT_ERROR(( " could not `mmap' file `%s'\n", filepathname ));
+
+ stream->base = (unsigned char*)ft_alloc( NULL, stream->size );
+
+ if ( !stream->base )
+ {
+ FT_ERROR(( "FT_Stream_Open:" ));
+ FT_ERROR(( " could not `alloc' memory\n" ));
+ goto Fail_Map;
+ }
+
+ total_read_count = 0;
+ do
+ {
+ DWORD read_count;
+
+
+ if ( ReadFile( file,
+ stream->base + total_read_count,
+ stream->size - total_read_count,
+ &read_count, NULL ) == FALSE )
+ {
+ FT_ERROR(( "FT_Stream_Open:" ));
+ FT_ERROR(( " error while `read'ing file `%s'\n", filepathname ));
+ goto Fail_Read;
+ }
+
+ total_read_count += read_count;
+
+ } while ( total_read_count != stream->size );
+
+ stream->close = ft_close_stream_by_free;
+ }
+
+ CloseHandle( file );
+
+ stream->descriptor.pointer = stream->base;
+ stream->pathname.pointer = (char*)filepathname;
+
+ stream->read = 0;
+
+ FT_TRACE1(( "FT_Stream_Open:" ));
+ FT_TRACE1(( " opened `%s' (%ld bytes) successfully\n",
+ filepathname, stream->size ));
+
+ return FT_Err_Ok;
+
+ Fail_Read:
+ ft_free( NULL, stream->base );
+
+ Fail_Map:
+ CloseHandle( file );
+
+ Fail_Open:
+ CloseHandle( file );
+
+ stream->base = NULL;
+ stream->size = 0;
+ stream->pos = 0;
+
+ return FT_THROW( Cannot_Open_Stream );
+ }
+
+
+#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_BASE_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_BASE_DEF( void )
+ FT_Done_Memory( FT_Memory memory )
+ {
+#ifdef FT_DEBUG_MEMORY
+ ft_mem_debug_done( memory );
+#endif
+ memory->free( memory, memory );
+ }
+
+
+/* END */