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authorBo Xu <bo_xu@foxitsoftware.com>2014-12-19 14:29:17 -0800
committerBo Xu <bo_xu@foxitsoftware.com>2014-12-19 14:29:17 -0800
commite4fc5ced45c8fcfbe2487ec64eab036bc7d57602 (patch)
tree1889eac2d57ff76d5f0fef689a3cbdfa37a0b3f4 /third_party/freetype/src/base/ftutil.c
parent5a35129bce7ca777e155e5498e8d4792fa6a4819 (diff)
downloadpdfium-e4fc5ced45c8fcfbe2487ec64eab036bc7d57602.tar.xz
Update freetype to 2.5.4.
Put freetype into third_party directory, cleaning up header files. Previously freetype header files are in core/src/fxge/freetype and core/include/thirdparties. There were also multiple fx_freetype.h. This patch removes the additional Foxit wrapper to make further update easier. Notice, for original freetype source code, the following files are modified and need to be updated accordingly in future update: third_party/freetype/include/config/ftmodule.h third_party/freetype/include/config/ftoption.h BUG=407341 R=thestig@chromium.org Review URL: https://codereview.chromium.org/815103002
Diffstat (limited to 'third_party/freetype/src/base/ftutil.c')
-rw-r--r--third_party/freetype/src/base/ftutil.c441
1 files changed, 441 insertions, 0 deletions
diff --git a/third_party/freetype/src/base/ftutil.c b/third_party/freetype/src/base/ftutil.c
new file mode 100644
index 0000000000..56e2800eb6
--- /dev/null
+++ b/third_party/freetype/src/base/ftutil.c
@@ -0,0 +1,441 @@
+/***************************************************************************/
+/* */
+/* ftutil.c */
+/* */
+/* FreeType utility file for memory and list management (body). */
+/* */
+/* Copyright 2002, 2004-2007, 2013 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_DEBUG_H
+#include FT_INTERNAL_MEMORY_H
+#include FT_INTERNAL_OBJECTS_H
+#include FT_LIST_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_memory
+
+
+ /*************************************************************************/
+ /*************************************************************************/
+ /*************************************************************************/
+ /***** *****/
+ /***** *****/
+ /***** M E M O R Y M A N A G E M E N T *****/
+ /***** *****/
+ /***** *****/
+ /*************************************************************************/
+ /*************************************************************************/
+ /*************************************************************************/
+
+
+ FT_BASE_DEF( FT_Pointer )
+ ft_mem_alloc( FT_Memory memory,
+ FT_Long size,
+ FT_Error *p_error )
+ {
+ FT_Error error;
+ FT_Pointer block = ft_mem_qalloc( memory, size, &error );
+
+ if ( !error && size > 0 )
+ FT_MEM_ZERO( block, size );
+
+ *p_error = error;
+ return block;
+ }
+
+
+ FT_BASE_DEF( FT_Pointer )
+ ft_mem_qalloc( FT_Memory memory,
+ FT_Long size,
+ FT_Error *p_error )
+ {
+ FT_Error error = FT_Err_Ok;
+ FT_Pointer block = NULL;
+
+
+ if ( size > 0 )
+ {
+ block = memory->alloc( memory, size );
+ if ( block == NULL )
+ error = FT_THROW( Out_Of_Memory );
+ }
+ else if ( size < 0 )
+ {
+ /* may help catch/prevent security issues */
+ error = FT_THROW( Invalid_Argument );
+ }
+
+ *p_error = error;
+ return block;
+ }
+
+
+ FT_BASE_DEF( FT_Pointer )
+ ft_mem_realloc( FT_Memory memory,
+ FT_Long item_size,
+ FT_Long cur_count,
+ FT_Long new_count,
+ void* block,
+ FT_Error *p_error )
+ {
+ FT_Error error = FT_Err_Ok;
+
+
+ block = ft_mem_qrealloc( memory, item_size,
+ cur_count, new_count, block, &error );
+ if ( !error && new_count > cur_count )
+ FT_MEM_ZERO( (char*)block + cur_count * item_size,
+ ( new_count - cur_count ) * item_size );
+
+ *p_error = error;
+ return block;
+ }
+
+
+ FT_BASE_DEF( FT_Pointer )
+ ft_mem_qrealloc( FT_Memory memory,
+ FT_Long item_size,
+ FT_Long cur_count,
+ FT_Long new_count,
+ void* block,
+ FT_Error *p_error )
+ {
+ FT_Error error = FT_Err_Ok;
+
+
+ /* Note that we now accept `item_size == 0' as a valid parameter, in
+ * order to cover very weird cases where an ALLOC_MULT macro would be
+ * called.
+ */
+ if ( cur_count < 0 || new_count < 0 || item_size < 0 )
+ {
+ /* may help catch/prevent nasty security issues */
+ error = FT_THROW( Invalid_Argument );
+ }
+ else if ( new_count == 0 || item_size == 0 )
+ {
+ ft_mem_free( memory, block );
+ block = NULL;
+ }
+ else if ( new_count > FT_INT_MAX/item_size )
+ {
+ error = FT_THROW( Array_Too_Large );
+ }
+ else if ( cur_count == 0 )
+ {
+ FT_ASSERT( block == NULL );
+
+ block = ft_mem_alloc( memory, new_count*item_size, &error );
+ }
+ else
+ {
+ FT_Pointer block2;
+ FT_Long cur_size = cur_count*item_size;
+ FT_Long new_size = new_count*item_size;
+
+
+ block2 = memory->realloc( memory, cur_size, new_size, block );
+ if ( block2 == NULL )
+ error = FT_THROW( Out_Of_Memory );
+ else
+ block = block2;
+ }
+
+ *p_error = error;
+ return block;
+ }
+
+
+ FT_BASE_DEF( void )
+ ft_mem_free( FT_Memory memory,
+ const void *P )
+ {
+ if ( P )
+ memory->free( memory, (void*)P );
+ }
+
+
+ FT_BASE_DEF( FT_Pointer )
+ ft_mem_dup( FT_Memory memory,
+ const void* address,
+ FT_ULong size,
+ FT_Error *p_error )
+ {
+ FT_Error error;
+ FT_Pointer p = ft_mem_qalloc( memory, size, &error );
+
+
+ if ( !error && address )
+ ft_memcpy( p, address, size );
+
+ *p_error = error;
+ return p;
+ }
+
+
+ FT_BASE_DEF( FT_Pointer )
+ ft_mem_strdup( FT_Memory memory,
+ const char* str,
+ FT_Error *p_error )
+ {
+ FT_ULong len = str ? (FT_ULong)ft_strlen( str ) + 1
+ : 0;
+
+
+ return ft_mem_dup( memory, str, len, p_error );
+ }
+
+
+ FT_BASE_DEF( FT_Int )
+ ft_mem_strcpyn( char* dst,
+ const char* src,
+ FT_ULong size )
+ {
+ while ( size > 1 && *src != 0 )
+ {
+ *dst++ = *src++;
+ size--;
+ }
+
+ *dst = 0; /* always zero-terminate */
+
+ return *src != 0;
+ }
+
+
+ /*************************************************************************/
+ /*************************************************************************/
+ /*************************************************************************/
+ /***** *****/
+ /***** *****/
+ /***** D O U B L Y L I N K E D L I S T S *****/
+ /***** *****/
+ /***** *****/
+ /*************************************************************************/
+ /*************************************************************************/
+ /*************************************************************************/
+
+#undef FT_COMPONENT
+#define FT_COMPONENT trace_list
+
+ /* documentation is in ftlist.h */
+
+ FT_EXPORT_DEF( FT_ListNode )
+ FT_List_Find( FT_List list,
+ void* data )
+ {
+ FT_ListNode cur;
+
+
+ if ( !list )
+ return NULL;
+
+ cur = list->head;
+ while ( cur )
+ {
+ if ( cur->data == data )
+ return cur;
+
+ cur = cur->next;
+ }
+
+ return NULL;
+ }
+
+
+ /* documentation is in ftlist.h */
+
+ FT_EXPORT_DEF( void )
+ FT_List_Add( FT_List list,
+ FT_ListNode node )
+ {
+ FT_ListNode before;
+
+
+ if ( !list || !node )
+ return;
+
+ before = list->tail;
+
+ node->next = 0;
+ node->prev = before;
+
+ if ( before )
+ before->next = node;
+ else
+ list->head = node;
+
+ list->tail = node;
+ }
+
+
+ /* documentation is in ftlist.h */
+
+ FT_EXPORT_DEF( void )
+ FT_List_Insert( FT_List list,
+ FT_ListNode node )
+ {
+ FT_ListNode after;
+
+
+ if ( !list || !node )
+ return;
+
+ after = list->head;
+
+ node->next = after;
+ node->prev = 0;
+
+ if ( !after )
+ list->tail = node;
+ else
+ after->prev = node;
+
+ list->head = node;
+ }
+
+
+ /* documentation is in ftlist.h */
+
+ FT_EXPORT_DEF( void )
+ FT_List_Remove( FT_List list,
+ FT_ListNode node )
+ {
+ FT_ListNode before, after;
+
+
+ if ( !list || !node )
+ return;
+
+ before = node->prev;
+ after = node->next;
+
+ if ( before )
+ before->next = after;
+ else
+ list->head = after;
+
+ if ( after )
+ after->prev = before;
+ else
+ list->tail = before;
+ }
+
+
+ /* documentation is in ftlist.h */
+
+ FT_EXPORT_DEF( void )
+ FT_List_Up( FT_List list,
+ FT_ListNode node )
+ {
+ FT_ListNode before, after;
+
+
+ if ( !list || !node )
+ return;
+
+ before = node->prev;
+ after = node->next;
+
+ /* check whether we are already on top of the list */
+ if ( !before )
+ return;
+
+ before->next = after;
+
+ if ( after )
+ after->prev = before;
+ else
+ list->tail = before;
+
+ node->prev = 0;
+ node->next = list->head;
+ list->head->prev = node;
+ list->head = node;
+ }
+
+
+ /* documentation is in ftlist.h */
+
+ FT_EXPORT_DEF( FT_Error )
+ FT_List_Iterate( FT_List list,
+ FT_List_Iterator iterator,
+ void* user )
+ {
+ FT_ListNode cur;
+ FT_Error error = FT_Err_Ok;
+
+
+ if ( !list || !iterator )
+ return FT_THROW( Invalid_Argument );
+
+ cur = list->head;
+
+ while ( cur )
+ {
+ FT_ListNode next = cur->next;
+
+
+ error = iterator( cur, user );
+ if ( error )
+ break;
+
+ cur = next;
+ }
+
+ return error;
+ }
+
+
+ /* documentation is in ftlist.h */
+
+ FT_EXPORT_DEF( void )
+ FT_List_Finalize( FT_List list,
+ FT_List_Destructor destroy,
+ FT_Memory memory,
+ void* user )
+ {
+ FT_ListNode cur;
+
+
+ if ( !list || !memory )
+ return;
+
+ cur = list->head;
+ while ( cur )
+ {
+ FT_ListNode next = cur->next;
+ void* data = cur->data;
+
+
+ if ( destroy )
+ destroy( memory, data, user );
+
+ FT_FREE( cur );
+ cur = next;
+ }
+
+ list->head = 0;
+ list->tail = 0;
+ }
+
+
+/* END */