| Index: third_party/freetype2/src/src/base/ftobjs.c
|
| diff --git a/third_party/freetype2/src/src/base/ftobjs.c b/third_party/freetype2/src/src/base/ftobjs.c
|
| new file mode 100644
|
| index 0000000000000000000000000000000000000000..ea40396413e976f556b8ed60d89930338ca30dba
|
| --- /dev/null
|
| +++ b/third_party/freetype2/src/src/base/ftobjs.c
|
| @@ -0,0 +1,4956 @@
|
| +/***************************************************************************/
|
| +/* */
|
| +/* ftobjs.c */
|
| +/* */
|
| +/* The FreeType private base classes (body). */
|
| +/* */
|
| +/* Copyright 1996-2015 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_LIST_H
|
| +#include FT_OUTLINE_H
|
| +#include FT_INTERNAL_VALIDATE_H
|
| +#include FT_INTERNAL_OBJECTS_H
|
| +#include FT_INTERNAL_DEBUG_H
|
| +#include FT_INTERNAL_RFORK_H
|
| +#include FT_INTERNAL_STREAM_H
|
| +#include FT_INTERNAL_SFNT_H /* for SFNT_Load_Table_Func */
|
| +#include FT_TRUETYPE_TABLES_H
|
| +#include FT_TRUETYPE_TAGS_H
|
| +#include FT_TRUETYPE_IDS_H
|
| +
|
| +#include FT_SERVICE_PROPERTIES_H
|
| +#include FT_SERVICE_SFNT_H
|
| +#include FT_SERVICE_POSTSCRIPT_NAME_H
|
| +#include FT_SERVICE_GLYPH_DICT_H
|
| +#include FT_SERVICE_TT_CMAP_H
|
| +#include FT_SERVICE_KERNING_H
|
| +#include FT_SERVICE_TRUETYPE_ENGINE_H
|
| +
|
| +#ifdef FT_CONFIG_OPTION_MAC_FONTS
|
| +#include "ftbase.h"
|
| +#endif
|
| +
|
| +
|
| +#ifdef FT_DEBUG_LEVEL_TRACE
|
| +
|
| +#include FT_BITMAP_H
|
| +
|
| +#if defined( _MSC_VER ) /* Visual C++ (and Intel C++) */
|
| + /* We disable the warning `conversion from XXX to YYY, */
|
| + /* possible loss of data' in order to compile cleanly with */
|
| + /* the maximum level of warnings: `md5.c' is non-FreeType */
|
| + /* code, and it gets used during development builds only. */
|
| +#pragma warning( push )
|
| +#pragma warning( disable : 4244 )
|
| +#endif /* _MSC_VER */
|
| +
|
| + /* It's easiest to include `md5.c' directly. However, since OpenSSL */
|
| + /* also provides the same functions, there might be conflicts if */
|
| + /* both FreeType and OpenSSL are built as static libraries. For */
|
| + /* this reason, we put the MD5 stuff into the `FT_' namespace. */
|
| +#define MD5_u32plus FT_MD5_u32plus
|
| +#define MD5_CTX FT_MD5_CTX
|
| +#define MD5_Init FT_MD5_Init
|
| +#define MD5_Update FT_MD5_Update
|
| +#define MD5_Final FT_MD5_Final
|
| +
|
| +#undef HAVE_OPENSSL
|
| +
|
| +#include "md5.c"
|
| +
|
| +#if defined( _MSC_VER )
|
| +#pragma warning( pop )
|
| +#endif
|
| +
|
| +#endif /* FT_DEBUG_LEVEL_TRACE */
|
| +
|
| +
|
| +#define GRID_FIT_METRICS
|
| +
|
| +
|
| + FT_BASE_DEF( FT_Pointer )
|
| + ft_service_list_lookup( FT_ServiceDesc service_descriptors,
|
| + const char* service_id )
|
| + {
|
| + FT_Pointer result = NULL;
|
| + FT_ServiceDesc desc = service_descriptors;
|
| +
|
| +
|
| + if ( desc && service_id )
|
| + {
|
| + for ( ; desc->serv_id != NULL; desc++ )
|
| + {
|
| + if ( ft_strcmp( desc->serv_id, service_id ) == 0 )
|
| + {
|
| + result = (FT_Pointer)desc->serv_data;
|
| + break;
|
| + }
|
| + }
|
| + }
|
| +
|
| + return result;
|
| + }
|
| +
|
| +
|
| + FT_BASE_DEF( void )
|
| + ft_validator_init( FT_Validator valid,
|
| + const FT_Byte* base,
|
| + const FT_Byte* limit,
|
| + FT_ValidationLevel level )
|
| + {
|
| + valid->base = base;
|
| + valid->limit = limit;
|
| + valid->level = level;
|
| + valid->error = FT_Err_Ok;
|
| + }
|
| +
|
| +
|
| + FT_BASE_DEF( FT_Int )
|
| + ft_validator_run( FT_Validator valid )
|
| + {
|
| + /* This function doesn't work! None should call it. */
|
| + FT_UNUSED( valid );
|
| +
|
| + return -1;
|
| + }
|
| +
|
| +
|
| + FT_BASE_DEF( void )
|
| + ft_validator_error( FT_Validator valid,
|
| + FT_Error error )
|
| + {
|
| + /* since the cast below also disables the compiler's */
|
| + /* type check, we introduce a dummy variable, which */
|
| + /* will be optimized away */
|
| + volatile ft_jmp_buf* jump_buffer = &valid->jump_buffer;
|
| +
|
| +
|
| + valid->error = error;
|
| +
|
| + /* throw away volatileness; use `jump_buffer' or the */
|
| + /* compiler may warn about an unused local variable */
|
| + ft_longjmp( *(ft_jmp_buf*) jump_buffer, 1 );
|
| + }
|
| +
|
| +
|
| + /*************************************************************************/
|
| + /*************************************************************************/
|
| + /*************************************************************************/
|
| + /**** ****/
|
| + /**** ****/
|
| + /**** S T R E A M ****/
|
| + /**** ****/
|
| + /**** ****/
|
| + /*************************************************************************/
|
| + /*************************************************************************/
|
| + /*************************************************************************/
|
| +
|
| +
|
| + /* create a new input stream from an FT_Open_Args structure */
|
| + /* */
|
| + FT_BASE_DEF( FT_Error )
|
| + FT_Stream_New( FT_Library library,
|
| + const FT_Open_Args* args,
|
| + FT_Stream *astream )
|
| + {
|
| + FT_Error error;
|
| + FT_Memory memory;
|
| + FT_Stream stream = NULL;
|
| +
|
| +
|
| + *astream = NULL;
|
| +
|
| + if ( !library )
|
| + return FT_THROW( Invalid_Library_Handle );
|
| +
|
| + if ( !args )
|
| + return FT_THROW( Invalid_Argument );
|
| +
|
| + memory = library->memory;
|
| +
|
| + if ( FT_NEW( stream ) )
|
| + goto Exit;
|
| +
|
| + stream->memory = memory;
|
| +
|
| + if ( args->flags & FT_OPEN_MEMORY )
|
| + {
|
| + /* create a memory-based stream */
|
| + FT_Stream_OpenMemory( stream,
|
| + (const FT_Byte*)args->memory_base,
|
| + (FT_ULong)args->memory_size );
|
| + }
|
| +
|
| +#ifndef FT_CONFIG_OPTION_DISABLE_STREAM_SUPPORT
|
| +
|
| + else if ( args->flags & FT_OPEN_PATHNAME )
|
| + {
|
| + /* create a normal system stream */
|
| + error = FT_Stream_Open( stream, args->pathname );
|
| + stream->pathname.pointer = args->pathname;
|
| + }
|
| + else if ( ( args->flags & FT_OPEN_STREAM ) && args->stream )
|
| + {
|
| + /* use an existing, user-provided stream */
|
| +
|
| + /* in this case, we do not need to allocate a new stream object */
|
| + /* since the caller is responsible for closing it himself */
|
| + FT_FREE( stream );
|
| + stream = args->stream;
|
| + }
|
| +
|
| +#endif
|
| +
|
| + else
|
| + error = FT_THROW( Invalid_Argument );
|
| +
|
| + if ( error )
|
| + FT_FREE( stream );
|
| + else
|
| + stream->memory = memory; /* just to be certain */
|
| +
|
| + *astream = stream;
|
| +
|
| + Exit:
|
| + return error;
|
| + }
|
| +
|
| +
|
| + FT_BASE_DEF( void )
|
| + FT_Stream_Free( FT_Stream stream,
|
| + FT_Int external )
|
| + {
|
| + if ( stream )
|
| + {
|
| + FT_Memory memory = stream->memory;
|
| +
|
| +
|
| + FT_Stream_Close( stream );
|
| +
|
| + if ( !external )
|
| + FT_FREE( stream );
|
| + }
|
| + }
|
| +
|
| +
|
| + /*************************************************************************/
|
| + /* */
|
| + /* 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_objs
|
| +
|
| +
|
| + /*************************************************************************/
|
| + /*************************************************************************/
|
| + /*************************************************************************/
|
| + /**** ****/
|
| + /**** ****/
|
| + /**** FACE, SIZE & GLYPH SLOT OBJECTS ****/
|
| + /**** ****/
|
| + /**** ****/
|
| + /*************************************************************************/
|
| + /*************************************************************************/
|
| + /*************************************************************************/
|
| +
|
| +
|
| + static FT_Error
|
| + ft_glyphslot_init( FT_GlyphSlot slot )
|
| + {
|
| + FT_Driver driver = slot->face->driver;
|
| + FT_Driver_Class clazz = driver->clazz;
|
| + FT_Memory memory = driver->root.memory;
|
| + FT_Error error = FT_Err_Ok;
|
| + FT_Slot_Internal internal = NULL;
|
| +
|
| +
|
| + slot->library = driver->root.library;
|
| +
|
| + if ( FT_NEW( internal ) )
|
| + goto Exit;
|
| +
|
| + slot->internal = internal;
|
| +
|
| + if ( FT_DRIVER_USES_OUTLINES( driver ) )
|
| + error = FT_GlyphLoader_New( memory, &internal->loader );
|
| +
|
| + if ( !error && clazz->init_slot )
|
| + error = clazz->init_slot( slot );
|
| +
|
| + Exit:
|
| + return error;
|
| + }
|
| +
|
| +
|
| + FT_BASE_DEF( void )
|
| + ft_glyphslot_free_bitmap( FT_GlyphSlot slot )
|
| + {
|
| + if ( slot->internal && ( slot->internal->flags & FT_GLYPH_OWN_BITMAP ) )
|
| + {
|
| + FT_Memory memory = FT_FACE_MEMORY( slot->face );
|
| +
|
| +
|
| + FT_FREE( slot->bitmap.buffer );
|
| + slot->internal->flags &= ~FT_GLYPH_OWN_BITMAP;
|
| + }
|
| + else
|
| + {
|
| + /* assume that the bitmap buffer was stolen or not */
|
| + /* allocated from the heap */
|
| + slot->bitmap.buffer = NULL;
|
| + }
|
| + }
|
| +
|
| +
|
| + FT_BASE_DEF( void )
|
| + ft_glyphslot_set_bitmap( FT_GlyphSlot slot,
|
| + FT_Byte* buffer )
|
| + {
|
| + ft_glyphslot_free_bitmap( slot );
|
| +
|
| + slot->bitmap.buffer = buffer;
|
| +
|
| + FT_ASSERT( (slot->internal->flags & FT_GLYPH_OWN_BITMAP) == 0 );
|
| + }
|
| +
|
| +
|
| + FT_BASE_DEF( FT_Error )
|
| + ft_glyphslot_alloc_bitmap( FT_GlyphSlot slot,
|
| + FT_ULong size )
|
| + {
|
| + FT_Memory memory = FT_FACE_MEMORY( slot->face );
|
| + FT_Error error;
|
| +
|
| +
|
| + if ( slot->internal->flags & FT_GLYPH_OWN_BITMAP )
|
| + FT_FREE( slot->bitmap.buffer );
|
| + else
|
| + slot->internal->flags |= FT_GLYPH_OWN_BITMAP;
|
| +
|
| + (void)FT_ALLOC( slot->bitmap.buffer, size );
|
| + return error;
|
| + }
|
| +
|
| +
|
| + static void
|
| + ft_glyphslot_clear( FT_GlyphSlot slot )
|
| + {
|
| + /* free bitmap if needed */
|
| + ft_glyphslot_free_bitmap( slot );
|
| +
|
| + /* clear all public fields in the glyph slot */
|
| + FT_ZERO( &slot->metrics );
|
| + FT_ZERO( &slot->outline );
|
| +
|
| + slot->bitmap.width = 0;
|
| + slot->bitmap.rows = 0;
|
| + slot->bitmap.pitch = 0;
|
| + slot->bitmap.pixel_mode = 0;
|
| + /* `slot->bitmap.buffer' has been handled by ft_glyphslot_free_bitmap */
|
| +
|
| + slot->bitmap_left = 0;
|
| + slot->bitmap_top = 0;
|
| + slot->num_subglyphs = 0;
|
| + slot->subglyphs = NULL;
|
| + slot->control_data = NULL;
|
| + slot->control_len = 0;
|
| + slot->other = NULL;
|
| + slot->format = FT_GLYPH_FORMAT_NONE;
|
| +
|
| + slot->linearHoriAdvance = 0;
|
| + slot->linearVertAdvance = 0;
|
| + slot->lsb_delta = 0;
|
| + slot->rsb_delta = 0;
|
| + }
|
| +
|
| +
|
| + static void
|
| + ft_glyphslot_done( FT_GlyphSlot slot )
|
| + {
|
| + FT_Driver driver = slot->face->driver;
|
| + FT_Driver_Class clazz = driver->clazz;
|
| + FT_Memory memory = driver->root.memory;
|
| +
|
| +
|
| + if ( clazz->done_slot )
|
| + clazz->done_slot( slot );
|
| +
|
| + /* free bitmap buffer if needed */
|
| + ft_glyphslot_free_bitmap( slot );
|
| +
|
| + /* slot->internal might be NULL in out-of-memory situations */
|
| + if ( slot->internal )
|
| + {
|
| + /* free glyph loader */
|
| + if ( FT_DRIVER_USES_OUTLINES( driver ) )
|
| + {
|
| + FT_GlyphLoader_Done( slot->internal->loader );
|
| + slot->internal->loader = NULL;
|
| + }
|
| +
|
| + FT_FREE( slot->internal );
|
| + }
|
| + }
|
| +
|
| +
|
| + /* documentation is in ftobjs.h */
|
| +
|
| + FT_BASE_DEF( FT_Error )
|
| + FT_New_GlyphSlot( FT_Face face,
|
| + FT_GlyphSlot *aslot )
|
| + {
|
| + FT_Error error;
|
| + FT_Driver driver;
|
| + FT_Driver_Class clazz;
|
| + FT_Memory memory;
|
| + FT_GlyphSlot slot = NULL;
|
| +
|
| +
|
| + if ( !face )
|
| + return FT_THROW( Invalid_Face_Handle );
|
| +
|
| + if ( !face->driver )
|
| + return FT_THROW( Invalid_Argument );
|
| +
|
| + driver = face->driver;
|
| + clazz = driver->clazz;
|
| + memory = driver->root.memory;
|
| +
|
| + FT_TRACE4(( "FT_New_GlyphSlot: Creating new slot object\n" ));
|
| + if ( !FT_ALLOC( slot, clazz->slot_object_size ) )
|
| + {
|
| + slot->face = face;
|
| +
|
| + error = ft_glyphslot_init( slot );
|
| + if ( error )
|
| + {
|
| + ft_glyphslot_done( slot );
|
| + FT_FREE( slot );
|
| + goto Exit;
|
| + }
|
| +
|
| + slot->next = face->glyph;
|
| + face->glyph = slot;
|
| +
|
| + if ( aslot )
|
| + *aslot = slot;
|
| + }
|
| + else if ( aslot )
|
| + *aslot = NULL;
|
| +
|
| +
|
| + Exit:
|
| + FT_TRACE4(( "FT_New_GlyphSlot: Return %d\n", error ));
|
| + return error;
|
| + }
|
| +
|
| +
|
| + /* documentation is in ftobjs.h */
|
| +
|
| + FT_BASE_DEF( void )
|
| + FT_Done_GlyphSlot( FT_GlyphSlot slot )
|
| + {
|
| + if ( slot )
|
| + {
|
| + FT_Driver driver = slot->face->driver;
|
| + FT_Memory memory = driver->root.memory;
|
| + FT_GlyphSlot prev;
|
| + FT_GlyphSlot cur;
|
| +
|
| +
|
| + /* Remove slot from its parent face's list */
|
| + prev = NULL;
|
| + cur = slot->face->glyph;
|
| +
|
| + while ( cur )
|
| + {
|
| + if ( cur == slot )
|
| + {
|
| + if ( !prev )
|
| + slot->face->glyph = cur->next;
|
| + else
|
| + prev->next = cur->next;
|
| +
|
| + /* finalize client-specific data */
|
| + if ( slot->generic.finalizer )
|
| + slot->generic.finalizer( slot );
|
| +
|
| + ft_glyphslot_done( slot );
|
| + FT_FREE( slot );
|
| + break;
|
| + }
|
| + prev = cur;
|
| + cur = cur->next;
|
| + }
|
| + }
|
| + }
|
| +
|
| +
|
| + /* documentation is in freetype.h */
|
| +
|
| + FT_EXPORT_DEF( void )
|
| + FT_Set_Transform( FT_Face face,
|
| + FT_Matrix* matrix,
|
| + FT_Vector* delta )
|
| + {
|
| + FT_Face_Internal internal;
|
| +
|
| +
|
| + if ( !face )
|
| + return;
|
| +
|
| + internal = face->internal;
|
| +
|
| + internal->transform_flags = 0;
|
| +
|
| + if ( !matrix )
|
| + {
|
| + internal->transform_matrix.xx = 0x10000L;
|
| + internal->transform_matrix.xy = 0;
|
| + internal->transform_matrix.yx = 0;
|
| + internal->transform_matrix.yy = 0x10000L;
|
| +
|
| + matrix = &internal->transform_matrix;
|
| + }
|
| + else
|
| + internal->transform_matrix = *matrix;
|
| +
|
| + /* set transform_flags bit flag 0 if `matrix' isn't the identity */
|
| + if ( ( matrix->xy | matrix->yx ) ||
|
| + matrix->xx != 0x10000L ||
|
| + matrix->yy != 0x10000L )
|
| + internal->transform_flags |= 1;
|
| +
|
| + if ( !delta )
|
| + {
|
| + internal->transform_delta.x = 0;
|
| + internal->transform_delta.y = 0;
|
| +
|
| + delta = &internal->transform_delta;
|
| + }
|
| + else
|
| + internal->transform_delta = *delta;
|
| +
|
| + /* set transform_flags bit flag 1 if `delta' isn't the null vector */
|
| + if ( delta->x | delta->y )
|
| + internal->transform_flags |= 2;
|
| + }
|
| +
|
| +
|
| + static FT_Renderer
|
| + ft_lookup_glyph_renderer( FT_GlyphSlot slot );
|
| +
|
| +
|
| +#ifdef GRID_FIT_METRICS
|
| + static void
|
| + ft_glyphslot_grid_fit_metrics( FT_GlyphSlot slot,
|
| + FT_Bool vertical )
|
| + {
|
| + FT_Glyph_Metrics* metrics = &slot->metrics;
|
| + FT_Pos right, bottom;
|
| +
|
| +
|
| + if ( vertical )
|
| + {
|
| + metrics->horiBearingX = FT_PIX_FLOOR( metrics->horiBearingX );
|
| + metrics->horiBearingY = FT_PIX_CEIL ( metrics->horiBearingY );
|
| +
|
| + right = FT_PIX_CEIL( metrics->vertBearingX + metrics->width );
|
| + bottom = FT_PIX_CEIL( metrics->vertBearingY + metrics->height );
|
| +
|
| + metrics->vertBearingX = FT_PIX_FLOOR( metrics->vertBearingX );
|
| + metrics->vertBearingY = FT_PIX_FLOOR( metrics->vertBearingY );
|
| +
|
| + metrics->width = right - metrics->vertBearingX;
|
| + metrics->height = bottom - metrics->vertBearingY;
|
| + }
|
| + else
|
| + {
|
| + metrics->vertBearingX = FT_PIX_FLOOR( metrics->vertBearingX );
|
| + metrics->vertBearingY = FT_PIX_FLOOR( metrics->vertBearingY );
|
| +
|
| + right = FT_PIX_CEIL ( metrics->horiBearingX + metrics->width );
|
| + bottom = FT_PIX_FLOOR( metrics->horiBearingY - metrics->height );
|
| +
|
| + metrics->horiBearingX = FT_PIX_FLOOR( metrics->horiBearingX );
|
| + metrics->horiBearingY = FT_PIX_CEIL ( metrics->horiBearingY );
|
| +
|
| + metrics->width = right - metrics->horiBearingX;
|
| + metrics->height = metrics->horiBearingY - bottom;
|
| + }
|
| +
|
| + metrics->horiAdvance = FT_PIX_ROUND( metrics->horiAdvance );
|
| + metrics->vertAdvance = FT_PIX_ROUND( metrics->vertAdvance );
|
| + }
|
| +#endif /* GRID_FIT_METRICS */
|
| +
|
| +
|
| + /* documentation is in freetype.h */
|
| +
|
| + FT_EXPORT_DEF( FT_Error )
|
| + FT_Load_Glyph( FT_Face face,
|
| + FT_UInt glyph_index,
|
| + FT_Int32 load_flags )
|
| + {
|
| + FT_Error error;
|
| + FT_Driver driver;
|
| + FT_GlyphSlot slot;
|
| + FT_Library library;
|
| + FT_Bool autohint = FALSE;
|
| + FT_Module hinter;
|
| + TT_Face ttface = (TT_Face)face;
|
| +
|
| +
|
| + if ( !face || !face->size || !face->glyph )
|
| + return FT_THROW( Invalid_Face_Handle );
|
| +
|
| + /* The validity test for `glyph_index' is performed by the */
|
| + /* font drivers. */
|
| +
|
| + slot = face->glyph;
|
| + ft_glyphslot_clear( slot );
|
| +
|
| + driver = face->driver;
|
| + library = driver->root.library;
|
| + hinter = library->auto_hinter;
|
| +
|
| + /* resolve load flags dependencies */
|
| +
|
| + if ( load_flags & FT_LOAD_NO_RECURSE )
|
| + load_flags |= FT_LOAD_NO_SCALE |
|
| + FT_LOAD_IGNORE_TRANSFORM;
|
| +
|
| + if ( load_flags & FT_LOAD_NO_SCALE )
|
| + {
|
| + load_flags |= FT_LOAD_NO_HINTING |
|
| + FT_LOAD_NO_BITMAP;
|
| +
|
| + load_flags &= ~FT_LOAD_RENDER;
|
| + }
|
| +
|
| + /*
|
| + * Determine whether we need to auto-hint or not.
|
| + * The general rules are:
|
| + *
|
| + * - Do only auto-hinting if we have a hinter module, a scalable font
|
| + * format dealing with outlines, and no transforms except simple
|
| + * slants and/or rotations by integer multiples of 90 degrees.
|
| + *
|
| + * - Then, auto-hint if FT_LOAD_FORCE_AUTOHINT is set or if we don't
|
| + * have a native font hinter.
|
| + *
|
| + * - Otherwise, auto-hint for LIGHT hinting mode or if there isn't
|
| + * any hinting bytecode in the TrueType/OpenType font.
|
| + *
|
| + * - Exception: The font is `tricky' and requires the native hinter to
|
| + * load properly.
|
| + */
|
| +
|
| + if ( hinter &&
|
| + !( load_flags & FT_LOAD_NO_HINTING ) &&
|
| + !( load_flags & FT_LOAD_NO_AUTOHINT ) &&
|
| + FT_DRIVER_IS_SCALABLE( driver ) &&
|
| + FT_DRIVER_USES_OUTLINES( driver ) &&
|
| + !FT_IS_TRICKY( face ) &&
|
| + ( ( load_flags & FT_LOAD_IGNORE_TRANSFORM ) ||
|
| + ( face->internal->transform_matrix.yx == 0 &&
|
| + face->internal->transform_matrix.xx != 0 ) ||
|
| + ( face->internal->transform_matrix.xx == 0 &&
|
| + face->internal->transform_matrix.yx != 0 ) ) )
|
| + {
|
| + if ( ( load_flags & FT_LOAD_FORCE_AUTOHINT ) ||
|
| + !FT_DRIVER_HAS_HINTER( driver ) )
|
| + autohint = TRUE;
|
| + else
|
| + {
|
| + FT_Render_Mode mode = FT_LOAD_TARGET_MODE( load_flags );
|
| +
|
| +
|
| + /* the check for `num_locations' assures that we actually */
|
| + /* test for instructions in a TTF and not in a CFF-based OTF */
|
| + /* */
|
| + /* since `maxSizeOfInstructions' might be unreliable, we */
|
| + /* check the size of the `fpgm' and `prep' tables, too -- */
|
| + /* the assumption is that there don't exist real TTFs where */
|
| + /* both `fpgm' and `prep' tables are missing */
|
| + if ( ( mode == FT_RENDER_MODE_LIGHT &&
|
| + !FT_DRIVER_HINTS_LIGHTLY( driver ) ) ||
|
| + face->internal->ignore_unpatented_hinter ||
|
| + ( FT_IS_SFNT( face ) &&
|
| + ttface->num_locations &&
|
| + ttface->max_profile.maxSizeOfInstructions == 0 &&
|
| + ttface->font_program_size == 0 &&
|
| + ttface->cvt_program_size == 0 ) )
|
| + autohint = TRUE;
|
| + }
|
| + }
|
| +
|
| + if ( autohint )
|
| + {
|
| + FT_AutoHinter_Interface hinting;
|
| +
|
| +
|
| + /* try to load embedded bitmaps first if available */
|
| + /* */
|
| + /* XXX: This is really a temporary hack that should disappear */
|
| + /* promptly with FreeType 2.1! */
|
| + /* */
|
| + if ( FT_HAS_FIXED_SIZES( face ) &&
|
| + ( load_flags & FT_LOAD_NO_BITMAP ) == 0 )
|
| + {
|
| + error = driver->clazz->load_glyph( slot, face->size,
|
| + glyph_index,
|
| + load_flags | FT_LOAD_SBITS_ONLY );
|
| +
|
| + if ( !error && slot->format == FT_GLYPH_FORMAT_BITMAP )
|
| + goto Load_Ok;
|
| + }
|
| +
|
| + {
|
| + FT_Face_Internal internal = face->internal;
|
| + FT_Int transform_flags = internal->transform_flags;
|
| +
|
| +
|
| + /* since the auto-hinter calls FT_Load_Glyph by itself, */
|
| + /* make sure that glyphs aren't transformed */
|
| + internal->transform_flags = 0;
|
| +
|
| + /* load auto-hinted outline */
|
| + hinting = (FT_AutoHinter_Interface)hinter->clazz->module_interface;
|
| +
|
| + error = hinting->load_glyph( (FT_AutoHinter)hinter,
|
| + slot, face->size,
|
| + glyph_index, load_flags );
|
| +
|
| + internal->transform_flags = transform_flags;
|
| + }
|
| + }
|
| + else
|
| + {
|
| + error = driver->clazz->load_glyph( slot,
|
| + face->size,
|
| + glyph_index,
|
| + load_flags );
|
| + if ( error )
|
| + goto Exit;
|
| +
|
| + if ( slot->format == FT_GLYPH_FORMAT_OUTLINE )
|
| + {
|
| + /* check that the loaded outline is correct */
|
| + error = FT_Outline_Check( &slot->outline );
|
| + if ( error )
|
| + goto Exit;
|
| +
|
| +#ifdef GRID_FIT_METRICS
|
| + if ( !( load_flags & FT_LOAD_NO_HINTING ) )
|
| + ft_glyphslot_grid_fit_metrics( slot,
|
| + FT_BOOL( load_flags & FT_LOAD_VERTICAL_LAYOUT ) );
|
| +#endif
|
| + }
|
| + }
|
| +
|
| + Load_Ok:
|
| + /* compute the advance */
|
| + if ( load_flags & FT_LOAD_VERTICAL_LAYOUT )
|
| + {
|
| + slot->advance.x = 0;
|
| + slot->advance.y = slot->metrics.vertAdvance;
|
| + }
|
| + else
|
| + {
|
| + slot->advance.x = slot->metrics.horiAdvance;
|
| + slot->advance.y = 0;
|
| + }
|
| +
|
| + /* compute the linear advance in 16.16 pixels */
|
| + if ( ( load_flags & FT_LOAD_LINEAR_DESIGN ) == 0 &&
|
| + ( FT_IS_SCALABLE( face ) ) )
|
| + {
|
| + FT_Size_Metrics* metrics = &face->size->metrics;
|
| +
|
| +
|
| + /* it's tricky! */
|
| + slot->linearHoriAdvance = FT_MulDiv( slot->linearHoriAdvance,
|
| + metrics->x_scale, 64 );
|
| +
|
| + slot->linearVertAdvance = FT_MulDiv( slot->linearVertAdvance,
|
| + metrics->y_scale, 64 );
|
| + }
|
| +
|
| + if ( ( load_flags & FT_LOAD_IGNORE_TRANSFORM ) == 0 )
|
| + {
|
| + FT_Face_Internal internal = face->internal;
|
| +
|
| +
|
| + /* now, transform the glyph image if needed */
|
| + if ( internal->transform_flags )
|
| + {
|
| + /* get renderer */
|
| + FT_Renderer renderer = ft_lookup_glyph_renderer( slot );
|
| +
|
| +
|
| + if ( renderer )
|
| + error = renderer->clazz->transform_glyph(
|
| + renderer, slot,
|
| + &internal->transform_matrix,
|
| + &internal->transform_delta );
|
| + else if ( slot->format == FT_GLYPH_FORMAT_OUTLINE )
|
| + {
|
| + /* apply `standard' transformation if no renderer is available */
|
| + if ( internal->transform_flags & 1 )
|
| + FT_Outline_Transform( &slot->outline,
|
| + &internal->transform_matrix );
|
| +
|
| + if ( internal->transform_flags & 2 )
|
| + FT_Outline_Translate( &slot->outline,
|
| + internal->transform_delta.x,
|
| + internal->transform_delta.y );
|
| + }
|
| +
|
| + /* transform advance */
|
| + FT_Vector_Transform( &slot->advance, &internal->transform_matrix );
|
| + }
|
| + }
|
| +
|
| + FT_TRACE5(( " x advance: %d\n" , slot->advance.x ));
|
| + FT_TRACE5(( " y advance: %d\n" , slot->advance.y ));
|
| +
|
| + FT_TRACE5(( " linear x advance: %d\n" , slot->linearHoriAdvance ));
|
| + FT_TRACE5(( " linear y advance: %d\n" , slot->linearVertAdvance ));
|
| +
|
| + /* do we need to render the image now? */
|
| + if ( !error &&
|
| + slot->format != FT_GLYPH_FORMAT_BITMAP &&
|
| + slot->format != FT_GLYPH_FORMAT_COMPOSITE &&
|
| + load_flags & FT_LOAD_RENDER )
|
| + {
|
| + FT_Render_Mode mode = FT_LOAD_TARGET_MODE( load_flags );
|
| +
|
| +
|
| + if ( mode == FT_RENDER_MODE_NORMAL &&
|
| + (load_flags & FT_LOAD_MONOCHROME ) )
|
| + mode = FT_RENDER_MODE_MONO;
|
| +
|
| + error = FT_Render_Glyph( slot, mode );
|
| + }
|
| +
|
| + Exit:
|
| + return error;
|
| + }
|
| +
|
| +
|
| + /* documentation is in freetype.h */
|
| +
|
| + FT_EXPORT_DEF( FT_Error )
|
| + FT_Load_Char( FT_Face face,
|
| + FT_ULong char_code,
|
| + FT_Int32 load_flags )
|
| + {
|
| + FT_UInt glyph_index;
|
| +
|
| +
|
| + if ( !face )
|
| + return FT_THROW( Invalid_Face_Handle );
|
| +
|
| + glyph_index = (FT_UInt)char_code;
|
| + if ( face->charmap )
|
| + glyph_index = FT_Get_Char_Index( face, char_code );
|
| +
|
| + return FT_Load_Glyph( face, glyph_index, load_flags );
|
| + }
|
| +
|
| +
|
| + /* destructor for sizes list */
|
| + static void
|
| + destroy_size( FT_Memory memory,
|
| + FT_Size size,
|
| + FT_Driver driver )
|
| + {
|
| + /* finalize client-specific data */
|
| + if ( size->generic.finalizer )
|
| + size->generic.finalizer( size );
|
| +
|
| + /* finalize format-specific stuff */
|
| + if ( driver->clazz->done_size )
|
| + driver->clazz->done_size( size );
|
| +
|
| + FT_FREE( size->internal );
|
| + FT_FREE( size );
|
| + }
|
| +
|
| +
|
| + static void
|
| + ft_cmap_done_internal( FT_CMap cmap );
|
| +
|
| +
|
| + static void
|
| + destroy_charmaps( FT_Face face,
|
| + FT_Memory memory )
|
| + {
|
| + FT_Int n;
|
| +
|
| +
|
| + if ( !face )
|
| + return;
|
| +
|
| + for ( n = 0; n < face->num_charmaps; n++ )
|
| + {
|
| + FT_CMap cmap = FT_CMAP( face->charmaps[n] );
|
| +
|
| +
|
| + ft_cmap_done_internal( cmap );
|
| +
|
| + face->charmaps[n] = NULL;
|
| + }
|
| +
|
| + FT_FREE( face->charmaps );
|
| + face->num_charmaps = 0;
|
| + }
|
| +
|
| +
|
| + /* destructor for faces list */
|
| + static void
|
| + destroy_face( FT_Memory memory,
|
| + FT_Face face,
|
| + FT_Driver driver )
|
| + {
|
| + FT_Driver_Class clazz = driver->clazz;
|
| +
|
| +
|
| + /* discard auto-hinting data */
|
| + if ( face->autohint.finalizer )
|
| + face->autohint.finalizer( face->autohint.data );
|
| +
|
| + /* Discard glyph slots for this face. */
|
| + /* Beware! FT_Done_GlyphSlot() changes the field `face->glyph' */
|
| + while ( face->glyph )
|
| + FT_Done_GlyphSlot( face->glyph );
|
| +
|
| + /* discard all sizes for this face */
|
| + FT_List_Finalize( &face->sizes_list,
|
| + (FT_List_Destructor)destroy_size,
|
| + memory,
|
| + driver );
|
| + face->size = NULL;
|
| +
|
| + /* now discard client data */
|
| + if ( face->generic.finalizer )
|
| + face->generic.finalizer( face );
|
| +
|
| + /* discard charmaps */
|
| + destroy_charmaps( face, memory );
|
| +
|
| + /* finalize format-specific stuff */
|
| + if ( clazz->done_face )
|
| + clazz->done_face( face );
|
| +
|
| + /* close the stream for this face if needed */
|
| + FT_Stream_Free(
|
| + face->stream,
|
| + ( face->face_flags & FT_FACE_FLAG_EXTERNAL_STREAM ) != 0 );
|
| +
|
| + face->stream = NULL;
|
| +
|
| + /* get rid of it */
|
| + if ( face->internal )
|
| + {
|
| + FT_FREE( face->internal );
|
| + }
|
| + FT_FREE( face );
|
| + }
|
| +
|
| +
|
| + static void
|
| + Destroy_Driver( FT_Driver driver )
|
| + {
|
| + FT_List_Finalize( &driver->faces_list,
|
| + (FT_List_Destructor)destroy_face,
|
| + driver->root.memory,
|
| + driver );
|
| + }
|
| +
|
| +
|
| + /*************************************************************************/
|
| + /* */
|
| + /* <Function> */
|
| + /* find_unicode_charmap */
|
| + /* */
|
| + /* <Description> */
|
| + /* This function finds a Unicode charmap, if there is one. */
|
| + /* And if there is more than one, it tries to favour the more */
|
| + /* extensive one, i.e., one that supports UCS-4 against those which */
|
| + /* are limited to the BMP (said UCS-2 encoding.) */
|
| + /* */
|
| + /* This function is called from open_face() (just below), and also */
|
| + /* from FT_Select_Charmap( ..., FT_ENCODING_UNICODE ). */
|
| + /* */
|
| + static FT_Error
|
| + find_unicode_charmap( FT_Face face )
|
| + {
|
| + FT_CharMap* first;
|
| + FT_CharMap* cur;
|
| +
|
| +
|
| + /* caller should have already checked that `face' is valid */
|
| + FT_ASSERT( face );
|
| +
|
| + first = face->charmaps;
|
| +
|
| + if ( !first )
|
| + return FT_THROW( Invalid_CharMap_Handle );
|
| +
|
| + /*
|
| + * The original TrueType specification(s) only specified charmap
|
| + * formats that are capable of mapping 8 or 16 bit character codes to
|
| + * glyph indices.
|
| + *
|
| + * However, recent updates to the Apple and OpenType specifications
|
| + * introduced new formats that are capable of mapping 32-bit character
|
| + * codes as well. And these are already used on some fonts, mainly to
|
| + * map non-BMP Asian ideographs as defined in Unicode.
|
| + *
|
| + * For compatibility purposes, these fonts generally come with
|
| + * *several* Unicode charmaps:
|
| + *
|
| + * - One of them in the "old" 16-bit format, that cannot access
|
| + * all glyphs in the font.
|
| + *
|
| + * - Another one in the "new" 32-bit format, that can access all
|
| + * the glyphs.
|
| + *
|
| + * This function has been written to always favor a 32-bit charmap
|
| + * when found. Otherwise, a 16-bit one is returned when found.
|
| + */
|
| +
|
| + /* Since the `interesting' table, with IDs (3,10), is normally the */
|
| + /* last one, we loop backwards. This loses with type1 fonts with */
|
| + /* non-BMP characters (<.0001%), this wins with .ttf with non-BMP */
|
| + /* chars (.01% ?), and this is the same about 99.99% of the time! */
|
| +
|
| + cur = first + face->num_charmaps; /* points after the last one */
|
| +
|
| + for ( ; --cur >= first; )
|
| + {
|
| + if ( cur[0]->encoding == FT_ENCODING_UNICODE )
|
| + {
|
| + /* XXX If some new encodings to represent UCS-4 are added, */
|
| + /* they should be added here. */
|
| + if ( ( cur[0]->platform_id == TT_PLATFORM_MICROSOFT &&
|
| + cur[0]->encoding_id == TT_MS_ID_UCS_4 ) ||
|
| + ( cur[0]->platform_id == TT_PLATFORM_APPLE_UNICODE &&
|
| + cur[0]->encoding_id == TT_APPLE_ID_UNICODE_32 ) )
|
| + {
|
| + face->charmap = cur[0];
|
| + return FT_Err_Ok;
|
| + }
|
| + }
|
| + }
|
| +
|
| + /* We do not have any UCS-4 charmap. */
|
| + /* Do the loop again and search for UCS-2 charmaps. */
|
| + cur = first + face->num_charmaps;
|
| +
|
| + for ( ; --cur >= first; )
|
| + {
|
| + if ( cur[0]->encoding == FT_ENCODING_UNICODE )
|
| + {
|
| + face->charmap = cur[0];
|
| + return FT_Err_Ok;
|
| + }
|
| + }
|
| +
|
| + return FT_THROW( Invalid_CharMap_Handle );
|
| + }
|
| +
|
| +
|
| + /*************************************************************************/
|
| + /* */
|
| + /* <Function> */
|
| + /* find_variant_selector_charmap */
|
| + /* */
|
| + /* <Description> */
|
| + /* This function finds the variant selector charmap, if there is one. */
|
| + /* There can only be one (platform=0, specific=5, format=14). */
|
| + /* */
|
| + static FT_CharMap
|
| + find_variant_selector_charmap( FT_Face face )
|
| + {
|
| + FT_CharMap* first;
|
| + FT_CharMap* end;
|
| + FT_CharMap* cur;
|
| +
|
| +
|
| + /* caller should have already checked that `face' is valid */
|
| + FT_ASSERT( face );
|
| +
|
| + first = face->charmaps;
|
| +
|
| + if ( !first )
|
| + return NULL;
|
| +
|
| + end = first + face->num_charmaps; /* points after the last one */
|
| +
|
| + for ( cur = first; cur < end; ++cur )
|
| + {
|
| + if ( cur[0]->platform_id == TT_PLATFORM_APPLE_UNICODE &&
|
| + cur[0]->encoding_id == TT_APPLE_ID_VARIANT_SELECTOR &&
|
| + FT_Get_CMap_Format( cur[0] ) == 14 )
|
| + return cur[0];
|
| + }
|
| +
|
| + return NULL;
|
| + }
|
| +
|
| +
|
| + /*************************************************************************/
|
| + /* */
|
| + /* <Function> */
|
| + /* open_face */
|
| + /* */
|
| + /* <Description> */
|
| + /* This function does some work for FT_Open_Face(). */
|
| + /* */
|
| + static FT_Error
|
| + open_face( FT_Driver driver,
|
| + FT_Stream *astream,
|
| + FT_Bool external_stream,
|
| + FT_Long face_index,
|
| + FT_Int num_params,
|
| + FT_Parameter* params,
|
| + FT_Face *aface )
|
| + {
|
| + FT_Memory memory;
|
| + FT_Driver_Class clazz;
|
| + FT_Face face = NULL;
|
| + FT_Face_Internal internal = NULL;
|
| +
|
| + FT_Error error, error2;
|
| +
|
| +
|
| + clazz = driver->clazz;
|
| + memory = driver->root.memory;
|
| +
|
| + /* allocate the face object and perform basic initialization */
|
| + if ( FT_ALLOC( face, clazz->face_object_size ) )
|
| + goto Fail;
|
| +
|
| + face->driver = driver;
|
| + face->memory = memory;
|
| + face->stream = *astream;
|
| +
|
| + /* set the FT_FACE_FLAG_EXTERNAL_STREAM bit for FT_Done_Face */
|
| + if ( external_stream )
|
| + face->face_flags |= FT_FACE_FLAG_EXTERNAL_STREAM;
|
| +
|
| + if ( FT_NEW( internal ) )
|
| + goto Fail;
|
| +
|
| + face->internal = internal;
|
| +
|
| +#ifdef FT_CONFIG_OPTION_INCREMENTAL
|
| + {
|
| + int i;
|
| +
|
| +
|
| + face->internal->incremental_interface = NULL;
|
| + for ( i = 0; i < num_params && !face->internal->incremental_interface;
|
| + i++ )
|
| + if ( params[i].tag == FT_PARAM_TAG_INCREMENTAL )
|
| + face->internal->incremental_interface =
|
| + (FT_Incremental_Interface)params[i].data;
|
| + }
|
| +#endif
|
| +
|
| + if ( clazz->init_face )
|
| + error = clazz->init_face( *astream,
|
| + face,
|
| + (FT_Int)face_index,
|
| + num_params,
|
| + params );
|
| + *astream = face->stream; /* Stream may have been changed. */
|
| + if ( error )
|
| + goto Fail;
|
| +
|
| + /* select Unicode charmap by default */
|
| + error2 = find_unicode_charmap( face );
|
| +
|
| + /* if no Unicode charmap can be found, FT_Err_Invalid_CharMap_Handle */
|
| + /* is returned. */
|
| +
|
| + /* no error should happen, but we want to play safe */
|
| + if ( error2 && FT_ERR_NEQ( error2, Invalid_CharMap_Handle ) )
|
| + {
|
| + error = error2;
|
| + goto Fail;
|
| + }
|
| +
|
| + *aface = face;
|
| +
|
| + Fail:
|
| + if ( error )
|
| + {
|
| + destroy_charmaps( face, memory );
|
| + if ( clazz->done_face )
|
| + clazz->done_face( face );
|
| + FT_FREE( internal );
|
| + FT_FREE( face );
|
| + *aface = NULL;
|
| + }
|
| +
|
| + return error;
|
| + }
|
| +
|
| +
|
| + /* there's a Mac-specific extended implementation of FT_New_Face() */
|
| + /* in src/base/ftmac.c */
|
| +
|
| +#ifndef FT_MACINTOSH
|
| +
|
| + /* documentation is in freetype.h */
|
| +
|
| + FT_EXPORT_DEF( FT_Error )
|
| + FT_New_Face( FT_Library library,
|
| + const char* pathname,
|
| + FT_Long face_index,
|
| + FT_Face *aface )
|
| + {
|
| + FT_Open_Args args;
|
| +
|
| +
|
| + /* test for valid `library' and `aface' delayed to `FT_Open_Face' */
|
| + if ( !pathname )
|
| + return FT_THROW( Invalid_Argument );
|
| +
|
| + args.flags = FT_OPEN_PATHNAME;
|
| + args.pathname = (char*)pathname;
|
| + args.stream = NULL;
|
| +
|
| + return FT_Open_Face( library, &args, face_index, aface );
|
| + }
|
| +
|
| +#endif
|
| +
|
| +
|
| + /* documentation is in freetype.h */
|
| +
|
| + FT_EXPORT_DEF( FT_Error )
|
| + FT_New_Memory_Face( FT_Library library,
|
| + const FT_Byte* file_base,
|
| + FT_Long file_size,
|
| + FT_Long face_index,
|
| + FT_Face *aface )
|
| + {
|
| + FT_Open_Args args;
|
| +
|
| +
|
| + /* test for valid `library' and `face' delayed to `FT_Open_Face' */
|
| + if ( !file_base )
|
| + return FT_THROW( Invalid_Argument );
|
| +
|
| + args.flags = FT_OPEN_MEMORY;
|
| + args.memory_base = file_base;
|
| + args.memory_size = file_size;
|
| + args.stream = NULL;
|
| +
|
| + return FT_Open_Face( library, &args, face_index, aface );
|
| + }
|
| +
|
| +
|
| +#ifdef FT_CONFIG_OPTION_MAC_FONTS
|
| +
|
| + /* The behavior here is very similar to that in base/ftmac.c, but it */
|
| + /* is designed to work on non-mac systems, so no mac specific calls. */
|
| + /* */
|
| + /* We look at the file and determine if it is a mac dfont file or a mac */
|
| + /* resource file, or a macbinary file containing a mac resource file. */
|
| + /* */
|
| + /* Unlike ftmac I'm not going to look at a `FOND'. I don't really see */
|
| + /* the point, especially since there may be multiple `FOND' resources. */
|
| + /* Instead I'll just look for `sfnt' and `POST' resources, ordered as */
|
| + /* they occur in the file. */
|
| + /* */
|
| + /* Note that multiple `POST' resources do not mean multiple postscript */
|
| + /* fonts; they all get jammed together to make what is essentially a */
|
| + /* pfb file. */
|
| + /* */
|
| + /* We aren't interested in `NFNT' or `FONT' bitmap resources. */
|
| + /* */
|
| + /* As soon as we get an `sfnt' load it into memory and pass it off to */
|
| + /* FT_Open_Face. */
|
| + /* */
|
| + /* If we have a (set of) `POST' resources, massage them into a (memory) */
|
| + /* pfb file and pass that to FT_Open_Face. (As with ftmac.c I'm not */
|
| + /* going to try to save the kerning info. After all that lives in the */
|
| + /* `FOND' which isn't in the file containing the `POST' resources so */
|
| + /* we don't really have access to it. */
|
| +
|
| +
|
| + /* Finalizer for a memory stream; gets called by FT_Done_Face(). */
|
| + /* It frees the memory it uses. */
|
| + /* From ftmac.c. */
|
| + static void
|
| + memory_stream_close( FT_Stream stream )
|
| + {
|
| + FT_Memory memory = stream->memory;
|
| +
|
| +
|
| + FT_FREE( stream->base );
|
| +
|
| + stream->size = 0;
|
| + stream->base = NULL;
|
| + stream->close = NULL;
|
| + }
|
| +
|
| +
|
| + /* Create a new memory stream from a buffer and a size. */
|
| + /* From ftmac.c. */
|
| + static FT_Error
|
| + new_memory_stream( FT_Library library,
|
| + FT_Byte* base,
|
| + FT_ULong size,
|
| + FT_Stream_CloseFunc close,
|
| + FT_Stream *astream )
|
| + {
|
| + FT_Error error;
|
| + FT_Memory memory;
|
| + FT_Stream stream = NULL;
|
| +
|
| +
|
| + if ( !library )
|
| + return FT_THROW( Invalid_Library_Handle );
|
| +
|
| + if ( !base )
|
| + return FT_THROW( Invalid_Argument );
|
| +
|
| + *astream = NULL;
|
| + memory = library->memory;
|
| + if ( FT_NEW( stream ) )
|
| + goto Exit;
|
| +
|
| + FT_Stream_OpenMemory( stream, base, size );
|
| +
|
| + stream->close = close;
|
| +
|
| + *astream = stream;
|
| +
|
| + Exit:
|
| + return error;
|
| + }
|
| +
|
| +
|
| + /* Create a new FT_Face given a buffer and a driver name. */
|
| + /* from ftmac.c */
|
| + FT_LOCAL_DEF( FT_Error )
|
| + open_face_from_buffer( FT_Library library,
|
| + FT_Byte* base,
|
| + FT_ULong size,
|
| + FT_Long face_index,
|
| + const char* driver_name,
|
| + FT_Face *aface )
|
| + {
|
| + FT_Open_Args args;
|
| + FT_Error error;
|
| + FT_Stream stream = NULL;
|
| + FT_Memory memory = library->memory;
|
| +
|
| +
|
| + error = new_memory_stream( library,
|
| + base,
|
| + size,
|
| + memory_stream_close,
|
| + &stream );
|
| + if ( error )
|
| + {
|
| + FT_FREE( base );
|
| + return error;
|
| + }
|
| +
|
| + args.flags = FT_OPEN_STREAM;
|
| + args.stream = stream;
|
| + if ( driver_name )
|
| + {
|
| + args.flags = args.flags | FT_OPEN_DRIVER;
|
| + args.driver = FT_Get_Module( library, driver_name );
|
| + }
|
| +
|
| +#ifdef FT_MACINTOSH
|
| + /* At this point, the face index has served its purpose; */
|
| + /* whoever calls this function has already used it to */
|
| + /* locate the correct font data. We should not propagate */
|
| + /* this index to FT_Open_Face() (unless it is negative). */
|
| +
|
| + if ( face_index > 0 )
|
| + face_index &= 0x7FFF0000L; /* retain GX data */
|
| +#endif
|
| +
|
| + error = FT_Open_Face( library, &args, face_index, aface );
|
| +
|
| + if ( error == FT_Err_Ok )
|
| + (*aface)->face_flags &= ~FT_FACE_FLAG_EXTERNAL_STREAM;
|
| + else
|
| +#ifdef FT_MACINTOSH
|
| + FT_Stream_Free( stream, 0 );
|
| +#else
|
| + {
|
| + FT_Stream_Close( stream );
|
| + FT_FREE( stream );
|
| + }
|
| +#endif
|
| +
|
| + return error;
|
| + }
|
| +
|
| +
|
| + /* Look up `TYP1' or `CID ' table from sfnt table directory. */
|
| + /* `offset' and `length' must exclude the binary header in tables. */
|
| +
|
| + /* Type 1 and CID-keyed font drivers should recognize sfnt-wrapped */
|
| + /* format too. Here, since we can't expect that the TrueType font */
|
| + /* driver is loaded unconditially, we must parse the font by */
|
| + /* ourselves. We are only interested in the name of the table and */
|
| + /* the offset. */
|
| +
|
| + static FT_Error
|
| + ft_lookup_PS_in_sfnt_stream( FT_Stream stream,
|
| + FT_Long face_index,
|
| + FT_ULong* offset,
|
| + FT_ULong* length,
|
| + FT_Bool* is_sfnt_cid )
|
| + {
|
| + FT_Error error;
|
| + FT_UShort numTables;
|
| + FT_Long pstable_index;
|
| + FT_ULong tag;
|
| + int i;
|
| +
|
| +
|
| + *offset = 0;
|
| + *length = 0;
|
| + *is_sfnt_cid = FALSE;
|
| +
|
| + /* TODO: support for sfnt-wrapped PS/CID in TTC format */
|
| +
|
| + /* version check for 'typ1' (should be ignored?) */
|
| + if ( FT_READ_ULONG( tag ) )
|
| + return error;
|
| + if ( tag != TTAG_typ1 )
|
| + return FT_THROW( Unknown_File_Format );
|
| +
|
| + if ( FT_READ_USHORT( numTables ) )
|
| + return error;
|
| + if ( FT_STREAM_SKIP( 2 * 3 ) ) /* skip binary search header */
|
| + return error;
|
| +
|
| + pstable_index = -1;
|
| + *is_sfnt_cid = FALSE;
|
| +
|
| + for ( i = 0; i < numTables; i++ )
|
| + {
|
| + if ( FT_READ_ULONG( tag ) || FT_STREAM_SKIP( 4 ) ||
|
| + FT_READ_ULONG( *offset ) || FT_READ_ULONG( *length ) )
|
| + return error;
|
| +
|
| + if ( tag == TTAG_CID )
|
| + {
|
| + pstable_index++;
|
| + *offset += 22;
|
| + *length -= 22;
|
| + *is_sfnt_cid = TRUE;
|
| + if ( face_index < 0 )
|
| + return FT_Err_Ok;
|
| + }
|
| + else if ( tag == TTAG_TYP1 )
|
| + {
|
| + pstable_index++;
|
| + *offset += 24;
|
| + *length -= 24;
|
| + *is_sfnt_cid = FALSE;
|
| + if ( face_index < 0 )
|
| + return FT_Err_Ok;
|
| + }
|
| + if ( face_index >= 0 && pstable_index == face_index )
|
| + return FT_Err_Ok;
|
| + }
|
| + return FT_THROW( Table_Missing );
|
| + }
|
| +
|
| +
|
| + FT_LOCAL_DEF( FT_Error )
|
| + open_face_PS_from_sfnt_stream( FT_Library library,
|
| + FT_Stream stream,
|
| + FT_Long face_index,
|
| + FT_Int num_params,
|
| + FT_Parameter *params,
|
| + FT_Face *aface )
|
| + {
|
| + FT_Error error;
|
| + FT_Memory memory = library->memory;
|
| + FT_ULong offset, length;
|
| + FT_ULong pos;
|
| + FT_Bool is_sfnt_cid;
|
| + FT_Byte* sfnt_ps = NULL;
|
| +
|
| + FT_UNUSED( num_params );
|
| + FT_UNUSED( params );
|
| +
|
| +
|
| + /* ignore GX stuff */
|
| + if ( face_index > 0 )
|
| + face_index &= 0xFFFFL;
|
| +
|
| + pos = FT_STREAM_POS();
|
| +
|
| + error = ft_lookup_PS_in_sfnt_stream( stream,
|
| + face_index,
|
| + &offset,
|
| + &length,
|
| + &is_sfnt_cid );
|
| + if ( error )
|
| + goto Exit;
|
| +
|
| + if ( FT_Stream_Seek( stream, pos + offset ) )
|
| + goto Exit;
|
| +
|
| + if ( FT_ALLOC( sfnt_ps, (FT_Long)length ) )
|
| + goto Exit;
|
| +
|
| + error = FT_Stream_Read( stream, (FT_Byte *)sfnt_ps, length );
|
| + if ( error ) {
|
| + FT_FREE( sfnt_ps );
|
| + goto Exit;
|
| + }
|
| +
|
| + error = open_face_from_buffer( library,
|
| + sfnt_ps,
|
| + length,
|
| + FT_MIN( face_index, 0 ),
|
| + is_sfnt_cid ? "cid" : "type1",
|
| + aface );
|
| + Exit:
|
| + {
|
| + FT_Error error1;
|
| +
|
| +
|
| + if ( FT_ERR_EQ( error, Unknown_File_Format ) )
|
| + {
|
| + error1 = FT_Stream_Seek( stream, pos );
|
| + if ( error1 )
|
| + return error1;
|
| + }
|
| +
|
| + return error;
|
| + }
|
| + }
|
| +
|
| +
|
| +#ifndef FT_MACINTOSH
|
| +
|
| + /* The resource header says we've got resource_cnt `POST' (type1) */
|
| + /* resources in this file. They all need to be coalesced into */
|
| + /* one lump which gets passed on to the type1 driver. */
|
| + /* Here can be only one PostScript font in a file so face_index */
|
| + /* must be 0 (or -1). */
|
| + /* */
|
| + static FT_Error
|
| + Mac_Read_POST_Resource( FT_Library library,
|
| + FT_Stream stream,
|
| + FT_Long *offsets,
|
| + FT_Long resource_cnt,
|
| + FT_Long face_index,
|
| + FT_Face *aface )
|
| + {
|
| + FT_Error error = FT_ERR( Cannot_Open_Resource );
|
| + FT_Memory memory = library->memory;
|
| + FT_Byte* pfb_data = NULL;
|
| + int i, type, flags;
|
| + FT_ULong len;
|
| + FT_ULong pfb_len, pfb_pos, pfb_lenpos;
|
| + FT_ULong rlen, temp;
|
| +
|
| +
|
| + if ( face_index == -1 )
|
| + face_index = 0;
|
| + if ( face_index != 0 )
|
| + return error;
|
| +
|
| + /* Find the length of all the POST resources, concatenated. Assume */
|
| + /* worst case (each resource in its own section). */
|
| + pfb_len = 0;
|
| + for ( i = 0; i < resource_cnt; ++i )
|
| + {
|
| + error = FT_Stream_Seek( stream, (FT_ULong)offsets[i] );
|
| + if ( error )
|
| + goto Exit;
|
| + if ( FT_READ_ULONG( temp ) )
|
| + goto Exit;
|
| +
|
| + /* FT2 allocator takes signed long buffer length,
|
| + * too large value causing overflow should be checked
|
| + */
|
| + FT_TRACE4(( " POST fragment #%d: length=0x%08x"
|
| + " total pfb_len=0x%08x\n",
|
| + i, temp, pfb_len + temp + 6));
|
| + if ( FT_MAC_RFORK_MAX_LEN < temp ||
|
| + FT_MAC_RFORK_MAX_LEN - temp < pfb_len + 6 )
|
| + {
|
| + FT_TRACE2(( " MacOS resource length cannot exceed"
|
| + " 0x%08x\n", FT_MAC_RFORK_MAX_LEN ));
|
| + error = FT_THROW( Invalid_Offset );
|
| + goto Exit;
|
| + }
|
| +
|
| + pfb_len += temp + 6;
|
| + }
|
| +
|
| + FT_TRACE2(( " total buffer size to concatenate %d"
|
| + " POST fragments: 0x%08x\n",
|
| + resource_cnt, pfb_len + 2));
|
| + if ( pfb_len + 2 < 6 ) {
|
| + FT_TRACE2(( " too long fragment length makes"
|
| + " pfb_len confused: pfb_len=0x%08x\n", pfb_len ));
|
| + error = FT_THROW( Array_Too_Large );
|
| + goto Exit;
|
| + }
|
| + if ( FT_ALLOC( pfb_data, (FT_Long)pfb_len + 2 ) )
|
| + goto Exit;
|
| +
|
| + pfb_data[0] = 0x80;
|
| + pfb_data[1] = 1; /* Ascii section */
|
| + pfb_data[2] = 0; /* 4-byte length, fill in later */
|
| + pfb_data[3] = 0;
|
| + pfb_data[4] = 0;
|
| + pfb_data[5] = 0;
|
| + pfb_pos = 6;
|
| + pfb_lenpos = 2;
|
| +
|
| + len = 0;
|
| + type = 1;
|
| + for ( i = 0; i < resource_cnt; ++i )
|
| + {
|
| + error = FT_Stream_Seek( stream, (FT_ULong)offsets[i] );
|
| + if ( error )
|
| + goto Exit2;
|
| + if ( FT_READ_ULONG( rlen ) )
|
| + goto Exit2;
|
| +
|
| + /* FT2 allocator takes signed long buffer length,
|
| + * too large fragment length causing overflow should be checked
|
| + */
|
| + if ( 0x7FFFFFFFUL < rlen )
|
| + {
|
| + error = FT_THROW( Invalid_Offset );
|
| + goto Exit2;
|
| + }
|
| +
|
| + if ( FT_READ_USHORT( flags ) )
|
| + goto Exit2;
|
| + FT_TRACE3(( "POST fragment[%d]: offsets=0x%08x, rlen=0x%08x, flags=0x%04x\n",
|
| + i, offsets[i], rlen, flags ));
|
| +
|
| + error = FT_ERR( Array_Too_Large );
|
| + /* postpone the check of rlen longer than buffer until FT_Stream_Read() */
|
| + if ( ( flags >> 8 ) == 0 ) /* Comment, should not be loaded */
|
| + {
|
| + FT_TRACE3(( " Skip POST fragment #%d because it is a comment\n", i ));
|
| + continue;
|
| + }
|
| +
|
| + /* the flags are part of the resource, so rlen >= 2. */
|
| + /* but some fonts declare rlen = 0 for empty fragment */
|
| + if ( rlen > 2 )
|
| + rlen -= 2;
|
| + else
|
| + rlen = 0;
|
| +
|
| + if ( ( flags >> 8 ) == type )
|
| + len += rlen;
|
| + else
|
| + {
|
| + FT_TRACE3(( " Write POST fragment #%d header (4-byte) to buffer"
|
| + " %p + 0x%08x\n", i, pfb_data, pfb_lenpos ));
|
| + if ( pfb_lenpos + 3 > pfb_len + 2 )
|
| + goto Exit2;
|
| + pfb_data[pfb_lenpos ] = (FT_Byte)( len );
|
| + pfb_data[pfb_lenpos + 1] = (FT_Byte)( len >> 8 );
|
| + pfb_data[pfb_lenpos + 2] = (FT_Byte)( len >> 16 );
|
| + pfb_data[pfb_lenpos + 3] = (FT_Byte)( len >> 24 );
|
| +
|
| + if ( ( flags >> 8 ) == 5 ) /* End of font mark */
|
| + break;
|
| +
|
| + FT_TRACE3(( " Write POST fragment #%d header (6-byte) to buffer"
|
| + " %p + 0x%08x\n", i, pfb_data, pfb_pos ));
|
| + if ( pfb_pos + 6 > pfb_len + 2 )
|
| + goto Exit2;
|
| + pfb_data[pfb_pos++] = 0x80;
|
| +
|
| + type = flags >> 8;
|
| + len = rlen;
|
| +
|
| + pfb_data[pfb_pos++] = (FT_Byte)type;
|
| + pfb_lenpos = pfb_pos;
|
| + pfb_data[pfb_pos++] = 0; /* 4-byte length, fill in later */
|
| + pfb_data[pfb_pos++] = 0;
|
| + pfb_data[pfb_pos++] = 0;
|
| + pfb_data[pfb_pos++] = 0;
|
| + }
|
| +
|
| + if ( pfb_pos > pfb_len || pfb_pos + rlen > pfb_len )
|
| + goto Exit2;
|
| +
|
| + FT_TRACE3(( " Load POST fragment #%d (%d byte) to buffer"
|
| + " %p + 0x%08x\n", i, rlen, pfb_data, pfb_pos ));
|
| + error = FT_Stream_Read( stream, (FT_Byte *)pfb_data + pfb_pos, rlen );
|
| + if ( error )
|
| + goto Exit2;
|
| + pfb_pos += rlen;
|
| + }
|
| +
|
| + error = FT_ERR( Array_Too_Large );
|
| + if ( pfb_pos + 2 > pfb_len + 2 )
|
| + goto Exit2;
|
| + pfb_data[pfb_pos++] = 0x80;
|
| + pfb_data[pfb_pos++] = 3;
|
| +
|
| + if ( pfb_lenpos + 3 > pfb_len + 2 )
|
| + goto Exit2;
|
| + pfb_data[pfb_lenpos ] = (FT_Byte)( len );
|
| + pfb_data[pfb_lenpos + 1] = (FT_Byte)( len >> 8 );
|
| + pfb_data[pfb_lenpos + 2] = (FT_Byte)( len >> 16 );
|
| + pfb_data[pfb_lenpos + 3] = (FT_Byte)( len >> 24 );
|
| +
|
| + return open_face_from_buffer( library,
|
| + pfb_data,
|
| + pfb_pos,
|
| + face_index,
|
| + "type1",
|
| + aface );
|
| +
|
| + Exit2:
|
| + if ( error == FT_ERR( Array_Too_Large ) )
|
| + FT_TRACE2(( " Abort due to too-short buffer to store"
|
| + " all POST fragments\n" ));
|
| + else if ( error == FT_ERR( Invalid_Offset ) )
|
| + FT_TRACE2(( " Abort due to invalid offset in a POST fragment\n" ));
|
| + if ( error )
|
| + error = FT_ERR( Cannot_Open_Resource );
|
| + FT_FREE( pfb_data );
|
| +
|
| + Exit:
|
| + return error;
|
| + }
|
| +
|
| +
|
| + /* The resource header says we've got resource_cnt `sfnt' */
|
| + /* (TrueType/OpenType) resources in this file. Look through */
|
| + /* them for the one indicated by face_index, load it into mem, */
|
| + /* pass it on to the truetype driver, and return it. */
|
| + /* */
|
| + static FT_Error
|
| + Mac_Read_sfnt_Resource( FT_Library library,
|
| + FT_Stream stream,
|
| + FT_Long *offsets,
|
| + FT_Long resource_cnt,
|
| + FT_Long face_index,
|
| + FT_Face *aface )
|
| + {
|
| + FT_Memory memory = library->memory;
|
| + FT_Byte* sfnt_data = NULL;
|
| + FT_Error error;
|
| + FT_ULong flag_offset;
|
| + FT_Long rlen;
|
| + int is_cff;
|
| + FT_Long face_index_in_resource = 0;
|
| +
|
| +
|
| + if ( face_index == -1 )
|
| + face_index = 0;
|
| + if ( face_index >= resource_cnt )
|
| + return FT_THROW( Cannot_Open_Resource );
|
| +
|
| + flag_offset = (FT_ULong)offsets[face_index];
|
| + error = FT_Stream_Seek( stream, flag_offset );
|
| + if ( error )
|
| + goto Exit;
|
| +
|
| + if ( FT_READ_LONG( rlen ) )
|
| + goto Exit;
|
| + if ( rlen == -1 )
|
| + return FT_THROW( Cannot_Open_Resource );
|
| + if ( (FT_ULong)rlen > FT_MAC_RFORK_MAX_LEN )
|
| + return FT_THROW( Invalid_Offset );
|
| +
|
| + error = open_face_PS_from_sfnt_stream( library,
|
| + stream,
|
| + face_index,
|
| + 0, NULL,
|
| + aface );
|
| + if ( !error )
|
| + goto Exit;
|
| +
|
| + /* rewind sfnt stream before open_face_PS_from_sfnt_stream() */
|
| + if ( FT_Stream_Seek( stream, flag_offset + 4 ) )
|
| + goto Exit;
|
| +
|
| + if ( FT_ALLOC( sfnt_data, rlen ) )
|
| + return error;
|
| + error = FT_Stream_Read( stream, (FT_Byte *)sfnt_data, (FT_ULong)rlen );
|
| + if ( error ) {
|
| + FT_FREE( sfnt_data );
|
| + goto Exit;
|
| + }
|
| +
|
| + is_cff = rlen > 4 && !ft_memcmp( sfnt_data, "OTTO", 4 );
|
| + error = open_face_from_buffer( library,
|
| + sfnt_data,
|
| + (FT_ULong)rlen,
|
| + face_index_in_resource,
|
| + is_cff ? "cff" : "truetype",
|
| + aface );
|
| +
|
| + Exit:
|
| + return error;
|
| + }
|
| +
|
| +
|
| + /* Check for a valid resource fork header, or a valid dfont */
|
| + /* header. In a resource fork the first 16 bytes are repeated */
|
| + /* at the location specified by bytes 4-7. In a dfont bytes */
|
| + /* 4-7 point to 16 bytes of zeroes instead. */
|
| + /* */
|
| + static FT_Error
|
| + IsMacResource( FT_Library library,
|
| + FT_Stream stream,
|
| + FT_Long resource_offset,
|
| + FT_Long face_index,
|
| + FT_Face *aface )
|
| + {
|
| + FT_Memory memory = library->memory;
|
| + FT_Error error;
|
| + FT_Long map_offset, rdara_pos;
|
| + FT_Long *data_offsets;
|
| + FT_Long count;
|
| +
|
| +
|
| + error = FT_Raccess_Get_HeaderInfo( library, stream, resource_offset,
|
| + &map_offset, &rdara_pos );
|
| + if ( error )
|
| + return error;
|
| +
|
| + /* POST resources must be sorted to concatenate properly */
|
| + error = FT_Raccess_Get_DataOffsets( library, stream,
|
| + map_offset, rdara_pos,
|
| + TTAG_POST, TRUE,
|
| + &data_offsets, &count );
|
| + if ( !error )
|
| + {
|
| + error = Mac_Read_POST_Resource( library, stream, data_offsets, count,
|
| + face_index, aface );
|
| + FT_FREE( data_offsets );
|
| + /* POST exists in an LWFN providing a single face */
|
| + if ( !error )
|
| + (*aface)->num_faces = 1;
|
| + return error;
|
| + }
|
| +
|
| + /* sfnt resources should not be sorted to preserve the face order by
|
| + QuickDraw API */
|
| + error = FT_Raccess_Get_DataOffsets( library, stream,
|
| + map_offset, rdara_pos,
|
| + TTAG_sfnt, FALSE,
|
| + &data_offsets, &count );
|
| + if ( !error )
|
| + {
|
| + FT_Long face_index_internal = face_index % count;
|
| +
|
| +
|
| + error = Mac_Read_sfnt_Resource( library, stream, data_offsets, count,
|
| + face_index_internal, aface );
|
| + FT_FREE( data_offsets );
|
| + if ( !error )
|
| + (*aface)->num_faces = count;
|
| + }
|
| +
|
| + return error;
|
| + }
|
| +
|
| +
|
| + /* Check for a valid macbinary header, and if we find one */
|
| + /* check that the (flattened) resource fork in it is valid. */
|
| + /* */
|
| + static FT_Error
|
| + IsMacBinary( FT_Library library,
|
| + FT_Stream stream,
|
| + FT_Long face_index,
|
| + FT_Face *aface )
|
| + {
|
| + unsigned char header[128];
|
| + FT_Error error;
|
| + FT_Long dlen, offset;
|
| +
|
| +
|
| + if ( NULL == stream )
|
| + return FT_THROW( Invalid_Stream_Operation );
|
| +
|
| + error = FT_Stream_Seek( stream, 0 );
|
| + if ( error )
|
| + goto Exit;
|
| +
|
| + error = FT_Stream_Read( stream, (FT_Byte*)header, 128 );
|
| + if ( error )
|
| + goto Exit;
|
| +
|
| + if ( header[ 0] != 0 ||
|
| + header[74] != 0 ||
|
| + header[82] != 0 ||
|
| + header[ 1] == 0 ||
|
| + header[ 1] > 33 ||
|
| + header[63] != 0 ||
|
| + header[2 + header[1]] != 0 ||
|
| + header[0x53] > 0x7F )
|
| + return FT_THROW( Unknown_File_Format );
|
| +
|
| + dlen = ( header[0x53] << 24 ) |
|
| + ( header[0x54] << 16 ) |
|
| + ( header[0x55] << 8 ) |
|
| + header[0x56];
|
| +#if 0
|
| + rlen = ( header[0x57] << 24 ) |
|
| + ( header[0x58] << 16 ) |
|
| + ( header[0x59] << 8 ) |
|
| + header[0x5A];
|
| +#endif /* 0 */
|
| + offset = 128 + ( ( dlen + 127 ) & ~127 );
|
| +
|
| + return IsMacResource( library, stream, offset, face_index, aface );
|
| +
|
| + Exit:
|
| + return error;
|
| + }
|
| +
|
| +
|
| + static FT_Error
|
| + load_face_in_embedded_rfork( FT_Library library,
|
| + FT_Stream stream,
|
| + FT_Long face_index,
|
| + FT_Face *aface,
|
| + const FT_Open_Args *args )
|
| + {
|
| +
|
| +#undef FT_COMPONENT
|
| +#define FT_COMPONENT trace_raccess
|
| +
|
| + FT_Memory memory = library->memory;
|
| + FT_Error error = FT_ERR( Unknown_File_Format );
|
| + FT_UInt i;
|
| +
|
| + char * file_names[FT_RACCESS_N_RULES];
|
| + FT_Long offsets[FT_RACCESS_N_RULES];
|
| + FT_Error errors[FT_RACCESS_N_RULES];
|
| + FT_Bool is_darwin_vfs, vfs_rfork_has_no_font = FALSE; /* not tested */
|
| +
|
| + FT_Open_Args args2;
|
| + FT_Stream stream2 = NULL;
|
| +
|
| +
|
| + FT_Raccess_Guess( library, stream,
|
| + args->pathname, file_names, offsets, errors );
|
| +
|
| + for ( i = 0; i < FT_RACCESS_N_RULES; i++ )
|
| + {
|
| + is_darwin_vfs = ft_raccess_rule_by_darwin_vfs( library, i );
|
| + if ( is_darwin_vfs && vfs_rfork_has_no_font )
|
| + {
|
| + FT_TRACE3(( "Skip rule %d: darwin vfs resource fork"
|
| + " is already checked and"
|
| + " no font is found\n", i ));
|
| + continue;
|
| + }
|
| +
|
| + if ( errors[i] )
|
| + {
|
| + FT_TRACE3(( "Error[%d] has occurred in rule %d\n", errors[i], i ));
|
| + continue;
|
| + }
|
| +
|
| + args2.flags = FT_OPEN_PATHNAME;
|
| + args2.pathname = file_names[i] ? file_names[i] : args->pathname;
|
| +
|
| + FT_TRACE3(( "Try rule %d: %s (offset=%d) ...",
|
| + i, args2.pathname, offsets[i] ));
|
| +
|
| + error = FT_Stream_New( library, &args2, &stream2 );
|
| + if ( is_darwin_vfs && FT_ERR_EQ( error, Cannot_Open_Stream ) )
|
| + vfs_rfork_has_no_font = TRUE;
|
| +
|
| + if ( error )
|
| + {
|
| + FT_TRACE3(( "failed\n" ));
|
| + continue;
|
| + }
|
| +
|
| + error = IsMacResource( library, stream2, offsets[i],
|
| + face_index, aface );
|
| + FT_Stream_Free( stream2, 0 );
|
| +
|
| + FT_TRACE3(( "%s\n", error ? "failed": "successful" ));
|
| +
|
| + if ( !error )
|
| + break;
|
| + else if ( is_darwin_vfs )
|
| + vfs_rfork_has_no_font = TRUE;
|
| + }
|
| +
|
| + for (i = 0; i < FT_RACCESS_N_RULES; i++)
|
| + {
|
| + if ( file_names[i] )
|
| + FT_FREE( file_names[i] );
|
| + }
|
| +
|
| + /* Caller (load_mac_face) requires FT_Err_Unknown_File_Format. */
|
| + if ( error )
|
| + error = FT_ERR( Unknown_File_Format );
|
| +
|
| + return error;
|
| +
|
| +#undef FT_COMPONENT
|
| +#define FT_COMPONENT trace_objs
|
| +
|
| + }
|
| +
|
| +
|
| + /* Check for some macintosh formats without Carbon framework. */
|
| + /* Is this a macbinary file? If so look at the resource fork. */
|
| + /* Is this a mac dfont file? */
|
| + /* Is this an old style resource fork? (in data) */
|
| + /* Else call load_face_in_embedded_rfork to try extra rules */
|
| + /* (defined in `ftrfork.c'). */
|
| + /* */
|
| + static FT_Error
|
| + load_mac_face( FT_Library library,
|
| + FT_Stream stream,
|
| + FT_Long face_index,
|
| + FT_Face *aface,
|
| + const FT_Open_Args *args )
|
| + {
|
| + FT_Error error;
|
| + FT_UNUSED( args );
|
| +
|
| +
|
| + error = IsMacBinary( library, stream, face_index, aface );
|
| + if ( FT_ERR_EQ( error, Unknown_File_Format ) )
|
| + {
|
| +
|
| +#undef FT_COMPONENT
|
| +#define FT_COMPONENT trace_raccess
|
| +
|
| +#ifdef FT_DEBUG_LEVEL_TRACE
|
| + FT_TRACE3(( "Try as dfont: " ));
|
| + if ( !( args->flags & FT_OPEN_MEMORY ) )
|
| + FT_TRACE3(( "%s ...", args->pathname ));
|
| +#endif
|
| +
|
| + error = IsMacResource( library, stream, 0, face_index, aface );
|
| +
|
| + FT_TRACE3(( "%s\n", error ? "failed" : "successful" ));
|
| +
|
| +#undef FT_COMPONENT
|
| +#define FT_COMPONENT trace_objs
|
| +
|
| + }
|
| +
|
| + if ( ( FT_ERR_EQ( error, Unknown_File_Format ) ||
|
| + FT_ERR_EQ( error, Invalid_Stream_Operation ) ) &&
|
| + ( args->flags & FT_OPEN_PATHNAME ) )
|
| + error = load_face_in_embedded_rfork( library, stream,
|
| + face_index, aface, args );
|
| + return error;
|
| + }
|
| +#endif
|
| +
|
| +#endif /* !FT_MACINTOSH && FT_CONFIG_OPTION_MAC_FONTS */
|
| +
|
| +
|
| + /* documentation is in freetype.h */
|
| +
|
| + FT_EXPORT_DEF( FT_Error )
|
| + FT_Open_Face( FT_Library library,
|
| + const FT_Open_Args* args,
|
| + FT_Long face_index,
|
| + FT_Face *aface )
|
| + {
|
| + FT_Error error;
|
| + FT_Driver driver = NULL;
|
| + FT_Memory memory = NULL;
|
| + FT_Stream stream = NULL;
|
| + FT_Face face = NULL;
|
| + FT_ListNode node = NULL;
|
| + FT_Bool external_stream;
|
| + FT_Module* cur;
|
| + FT_Module* limit;
|
| +
|
| +
|
| + /* test for valid `library' delayed to `FT_Stream_New' */
|
| +
|
| + if ( ( !aface && face_index >= 0 ) || !args )
|
| + return FT_THROW( Invalid_Argument );
|
| +
|
| + external_stream = FT_BOOL( ( args->flags & FT_OPEN_STREAM ) &&
|
| + args->stream );
|
| +
|
| + /* create input stream */
|
| + error = FT_Stream_New( library, args, &stream );
|
| + if ( error )
|
| + goto Fail3;
|
| +
|
| + memory = library->memory;
|
| +
|
| + /* If the font driver is specified in the `args' structure, use */
|
| + /* it. Otherwise, we scan the list of registered drivers. */
|
| + if ( ( args->flags & FT_OPEN_DRIVER ) && args->driver )
|
| + {
|
| + driver = FT_DRIVER( args->driver );
|
| +
|
| + /* not all modules are drivers, so check... */
|
| + if ( FT_MODULE_IS_DRIVER( driver ) )
|
| + {
|
| + FT_Int num_params = 0;
|
| + FT_Parameter* params = NULL;
|
| +
|
| +
|
| + if ( args->flags & FT_OPEN_PARAMS )
|
| + {
|
| + num_params = args->num_params;
|
| + params = args->params;
|
| + }
|
| +
|
| + error = open_face( driver, &stream, external_stream, face_index,
|
| + num_params, params, &face );
|
| + if ( !error )
|
| + goto Success;
|
| + }
|
| + else
|
| + error = FT_THROW( Invalid_Handle );
|
| +
|
| + FT_Stream_Free( stream, external_stream );
|
| + goto Fail;
|
| + }
|
| + else
|
| + {
|
| + error = FT_ERR( Missing_Module );
|
| +
|
| + /* check each font driver for an appropriate format */
|
| + cur = library->modules;
|
| + limit = cur + library->num_modules;
|
| +
|
| + for ( ; cur < limit; cur++ )
|
| + {
|
| + /* not all modules are font drivers, so check... */
|
| + if ( FT_MODULE_IS_DRIVER( cur[0] ) )
|
| + {
|
| + FT_Int num_params = 0;
|
| + FT_Parameter* params = NULL;
|
| +
|
| +
|
| + driver = FT_DRIVER( cur[0] );
|
| +
|
| + if ( args->flags & FT_OPEN_PARAMS )
|
| + {
|
| + num_params = args->num_params;
|
| + params = args->params;
|
| + }
|
| +
|
| + error = open_face( driver, &stream, external_stream, face_index,
|
| + num_params, params, &face );
|
| + if ( !error )
|
| + goto Success;
|
| +
|
| +#ifdef FT_CONFIG_OPTION_MAC_FONTS
|
| + if ( ft_strcmp( cur[0]->clazz->module_name, "truetype" ) == 0 &&
|
| + FT_ERR_EQ( error, Table_Missing ) )
|
| + {
|
| + /* TrueType but essential tables are missing */
|
| + if ( FT_Stream_Seek( stream, 0 ) )
|
| + break;
|
| +
|
| + error = open_face_PS_from_sfnt_stream( library,
|
| + stream,
|
| + face_index,
|
| + num_params,
|
| + params,
|
| + aface );
|
| + if ( !error )
|
| + {
|
| + FT_Stream_Free( stream, external_stream );
|
| + return error;
|
| + }
|
| + }
|
| +#endif
|
| +
|
| + if ( FT_ERR_NEQ( error, Unknown_File_Format ) )
|
| + goto Fail3;
|
| + }
|
| + }
|
| +
|
| + Fail3:
|
| + /* If we are on the mac, and we get an */
|
| + /* FT_Err_Invalid_Stream_Operation it may be because we have an */
|
| + /* empty data fork, so we need to check the resource fork. */
|
| + if ( FT_ERR_NEQ( error, Cannot_Open_Stream ) &&
|
| + FT_ERR_NEQ( error, Unknown_File_Format ) &&
|
| + FT_ERR_NEQ( error, Invalid_Stream_Operation ) )
|
| + goto Fail2;
|
| +
|
| +#if !defined( FT_MACINTOSH ) && defined( FT_CONFIG_OPTION_MAC_FONTS )
|
| + error = load_mac_face( library, stream, face_index, aface, args );
|
| + if ( !error )
|
| + {
|
| + /* We don't want to go to Success here. We've already done that. */
|
| + /* On the other hand, if we succeeded we still need to close this */
|
| + /* stream (we opened a different stream which extracted the */
|
| + /* interesting information out of this stream here. That stream */
|
| + /* will still be open and the face will point to it). */
|
| + FT_Stream_Free( stream, external_stream );
|
| + return error;
|
| + }
|
| +
|
| + if ( FT_ERR_NEQ( error, Unknown_File_Format ) )
|
| + goto Fail2;
|
| +#endif /* !FT_MACINTOSH && FT_CONFIG_OPTION_MAC_FONTS */
|
| +
|
| + /* no driver is able to handle this format */
|
| + error = FT_THROW( Unknown_File_Format );
|
| +
|
| + Fail2:
|
| + FT_Stream_Free( stream, external_stream );
|
| + goto Fail;
|
| + }
|
| +
|
| + Success:
|
| + FT_TRACE4(( "FT_Open_Face: New face object, adding to list\n" ));
|
| +
|
| + /* add the face object to its driver's list */
|
| + if ( FT_NEW( node ) )
|
| + goto Fail;
|
| +
|
| + node->data = face;
|
| + /* don't assume driver is the same as face->driver, so use */
|
| + /* face->driver instead. */
|
| + FT_List_Add( &face->driver->faces_list, node );
|
| +
|
| + /* now allocate a glyph slot object for the face */
|
| + FT_TRACE4(( "FT_Open_Face: Creating glyph slot\n" ));
|
| +
|
| + if ( face_index >= 0 )
|
| + {
|
| + error = FT_New_GlyphSlot( face, NULL );
|
| + if ( error )
|
| + goto Fail;
|
| +
|
| + /* finally, allocate a size object for the face */
|
| + {
|
| + FT_Size size;
|
| +
|
| +
|
| + FT_TRACE4(( "FT_Open_Face: Creating size object\n" ));
|
| +
|
| + error = FT_New_Size( face, &size );
|
| + if ( error )
|
| + goto Fail;
|
| +
|
| + face->size = size;
|
| + }
|
| + }
|
| +
|
| + /* some checks */
|
| +
|
| + if ( FT_IS_SCALABLE( face ) )
|
| + {
|
| + if ( face->height < 0 )
|
| + face->height = (FT_Short)-face->height;
|
| +
|
| + if ( !FT_HAS_VERTICAL( face ) )
|
| + face->max_advance_height = (FT_Short)face->height;
|
| + }
|
| +
|
| + if ( FT_HAS_FIXED_SIZES( face ) )
|
| + {
|
| + FT_Int i;
|
| +
|
| +
|
| + for ( i = 0; i < face->num_fixed_sizes; i++ )
|
| + {
|
| + FT_Bitmap_Size* bsize = face->available_sizes + i;
|
| +
|
| +
|
| + if ( bsize->height < 0 )
|
| + bsize->height = (FT_Short)-bsize->height;
|
| + if ( bsize->x_ppem < 0 )
|
| + bsize->x_ppem = (FT_Short)-bsize->x_ppem;
|
| + if ( bsize->y_ppem < 0 )
|
| + bsize->y_ppem = -bsize->y_ppem;
|
| + }
|
| + }
|
| +
|
| + /* initialize internal face data */
|
| + {
|
| + FT_Face_Internal internal = face->internal;
|
| +
|
| +
|
| + internal->transform_matrix.xx = 0x10000L;
|
| + internal->transform_matrix.xy = 0;
|
| + internal->transform_matrix.yx = 0;
|
| + internal->transform_matrix.yy = 0x10000L;
|
| +
|
| + internal->transform_delta.x = 0;
|
| + internal->transform_delta.y = 0;
|
| +
|
| + internal->refcount = 1;
|
| + }
|
| +
|
| + if ( aface )
|
| + *aface = face;
|
| + else
|
| + FT_Done_Face( face );
|
| +
|
| + goto Exit;
|
| +
|
| + Fail:
|
| + if ( node )
|
| + FT_Done_Face( face ); /* face must be in the driver's list */
|
| + else if ( face )
|
| + destroy_face( memory, face, driver );
|
| +
|
| + Exit:
|
| + FT_TRACE4(( "FT_Open_Face: Return %d\n", error ));
|
| +
|
| + return error;
|
| + }
|
| +
|
| +
|
| + /* documentation is in freetype.h */
|
| +
|
| + FT_EXPORT_DEF( FT_Error )
|
| + FT_Attach_File( FT_Face face,
|
| + const char* filepathname )
|
| + {
|
| + FT_Open_Args open;
|
| +
|
| +
|
| + /* test for valid `face' delayed to `FT_Attach_Stream' */
|
| +
|
| + if ( !filepathname )
|
| + return FT_THROW( Invalid_Argument );
|
| +
|
| + open.stream = NULL;
|
| + open.flags = FT_OPEN_PATHNAME;
|
| + open.pathname = (char*)filepathname;
|
| +
|
| + return FT_Attach_Stream( face, &open );
|
| + }
|
| +
|
| +
|
| + /* documentation is in freetype.h */
|
| +
|
| + FT_EXPORT_DEF( FT_Error )
|
| + FT_Attach_Stream( FT_Face face,
|
| + FT_Open_Args* parameters )
|
| + {
|
| + FT_Stream stream;
|
| + FT_Error error;
|
| + FT_Driver driver;
|
| +
|
| + FT_Driver_Class clazz;
|
| +
|
| +
|
| + /* test for valid `parameters' delayed to `FT_Stream_New' */
|
| +
|
| + if ( !face )
|
| + return FT_THROW( Invalid_Face_Handle );
|
| +
|
| + driver = face->driver;
|
| + if ( !driver )
|
| + return FT_THROW( Invalid_Driver_Handle );
|
| +
|
| + error = FT_Stream_New( driver->root.library, parameters, &stream );
|
| + if ( error )
|
| + goto Exit;
|
| +
|
| + /* we implement FT_Attach_Stream in each driver through the */
|
| + /* `attach_file' interface */
|
| +
|
| + error = FT_ERR( Unimplemented_Feature );
|
| + clazz = driver->clazz;
|
| + if ( clazz->attach_file )
|
| + error = clazz->attach_file( face, stream );
|
| +
|
| + /* close the attached stream */
|
| + FT_Stream_Free( stream,
|
| + (FT_Bool)( parameters->stream &&
|
| + ( parameters->flags & FT_OPEN_STREAM ) ) );
|
| +
|
| + Exit:
|
| + return error;
|
| + }
|
| +
|
| +
|
| + /* documentation is in freetype.h */
|
| +
|
| + FT_EXPORT_DEF( FT_Error )
|
| + FT_Reference_Face( FT_Face face )
|
| + {
|
| + if ( !face )
|
| + return FT_THROW( Invalid_Face_Handle );
|
| +
|
| + face->internal->refcount++;
|
| +
|
| + return FT_Err_Ok;
|
| + }
|
| +
|
| +
|
| + /* documentation is in freetype.h */
|
| +
|
| + FT_EXPORT_DEF( FT_Error )
|
| + FT_Done_Face( FT_Face face )
|
| + {
|
| + FT_Error error;
|
| + FT_Driver driver;
|
| + FT_Memory memory;
|
| + FT_ListNode node;
|
| +
|
| +
|
| + error = FT_ERR( Invalid_Face_Handle );
|
| + if ( face && face->driver )
|
| + {
|
| + face->internal->refcount--;
|
| + if ( face->internal->refcount > 0 )
|
| + error = FT_Err_Ok;
|
| + else
|
| + {
|
| + driver = face->driver;
|
| + memory = driver->root.memory;
|
| +
|
| + /* find face in driver's list */
|
| + node = FT_List_Find( &driver->faces_list, face );
|
| + if ( node )
|
| + {
|
| + /* remove face object from the driver's list */
|
| + FT_List_Remove( &driver->faces_list, node );
|
| + FT_FREE( node );
|
| +
|
| + /* now destroy the object proper */
|
| + destroy_face( memory, face, driver );
|
| + error = FT_Err_Ok;
|
| + }
|
| + }
|
| + }
|
| +
|
| + return error;
|
| + }
|
| +
|
| +
|
| + /* documentation is in ftobjs.h */
|
| +
|
| + FT_EXPORT_DEF( FT_Error )
|
| + FT_New_Size( FT_Face face,
|
| + FT_Size *asize )
|
| + {
|
| + FT_Error error;
|
| + FT_Memory memory;
|
| + FT_Driver driver;
|
| + FT_Driver_Class clazz;
|
| +
|
| + FT_Size size = NULL;
|
| + FT_ListNode node = NULL;
|
| +
|
| +
|
| + if ( !face )
|
| + return FT_THROW( Invalid_Face_Handle );
|
| +
|
| + if ( !asize )
|
| + return FT_THROW( Invalid_Argument );
|
| +
|
| + if ( !face->driver )
|
| + return FT_THROW( Invalid_Driver_Handle );
|
| +
|
| + *asize = NULL;
|
| +
|
| + driver = face->driver;
|
| + clazz = driver->clazz;
|
| + memory = face->memory;
|
| +
|
| + /* Allocate new size object and perform basic initialisation */
|
| + if ( FT_ALLOC( size, clazz->size_object_size ) || FT_NEW( node ) )
|
| + goto Exit;
|
| +
|
| + size->face = face;
|
| +
|
| + /* for now, do not use any internal fields in size objects */
|
| + size->internal = NULL;
|
| +
|
| + if ( clazz->init_size )
|
| + error = clazz->init_size( size );
|
| +
|
| + /* in case of success, add to the face's list */
|
| + if ( !error )
|
| + {
|
| + *asize = size;
|
| + node->data = size;
|
| + FT_List_Add( &face->sizes_list, node );
|
| + }
|
| +
|
| + Exit:
|
| + if ( error )
|
| + {
|
| + FT_FREE( node );
|
| + FT_FREE( size );
|
| + }
|
| +
|
| + return error;
|
| + }
|
| +
|
| +
|
| + /* documentation is in ftobjs.h */
|
| +
|
| + FT_EXPORT_DEF( FT_Error )
|
| + FT_Done_Size( FT_Size size )
|
| + {
|
| + FT_Error error;
|
| + FT_Driver driver;
|
| + FT_Memory memory;
|
| + FT_Face face;
|
| + FT_ListNode node;
|
| +
|
| +
|
| + if ( !size )
|
| + return FT_THROW( Invalid_Size_Handle );
|
| +
|
| + face = size->face;
|
| + if ( !face )
|
| + return FT_THROW( Invalid_Face_Handle );
|
| +
|
| + driver = face->driver;
|
| + if ( !driver )
|
| + return FT_THROW( Invalid_Driver_Handle );
|
| +
|
| + memory = driver->root.memory;
|
| +
|
| + error = FT_Err_Ok;
|
| + node = FT_List_Find( &face->sizes_list, size );
|
| + if ( node )
|
| + {
|
| + FT_List_Remove( &face->sizes_list, node );
|
| + FT_FREE( node );
|
| +
|
| + if ( face->size == size )
|
| + {
|
| + face->size = NULL;
|
| + if ( face->sizes_list.head )
|
| + face->size = (FT_Size)(face->sizes_list.head->data);
|
| + }
|
| +
|
| + destroy_size( memory, size, driver );
|
| + }
|
| + else
|
| + error = FT_THROW( Invalid_Size_Handle );
|
| +
|
| + return error;
|
| + }
|
| +
|
| +
|
| + /* documentation is in ftobjs.h */
|
| +
|
| + FT_BASE_DEF( FT_Error )
|
| + FT_Match_Size( FT_Face face,
|
| + FT_Size_Request req,
|
| + FT_Bool ignore_width,
|
| + FT_ULong* size_index )
|
| + {
|
| + FT_Int i;
|
| + FT_Long w, h;
|
| +
|
| +
|
| + if ( !FT_HAS_FIXED_SIZES( face ) )
|
| + return FT_THROW( Invalid_Face_Handle );
|
| +
|
| + /* FT_Bitmap_Size doesn't provide enough info... */
|
| + if ( req->type != FT_SIZE_REQUEST_TYPE_NOMINAL )
|
| + return FT_THROW( Unimplemented_Feature );
|
| +
|
| + w = FT_REQUEST_WIDTH ( req );
|
| + h = FT_REQUEST_HEIGHT( req );
|
| +
|
| + if ( req->width && !req->height )
|
| + h = w;
|
| + else if ( !req->width && req->height )
|
| + w = h;
|
| +
|
| + w = FT_PIX_ROUND( w );
|
| + h = FT_PIX_ROUND( h );
|
| +
|
| + for ( i = 0; i < face->num_fixed_sizes; i++ )
|
| + {
|
| + FT_Bitmap_Size* bsize = face->available_sizes + i;
|
| +
|
| +
|
| + if ( h != FT_PIX_ROUND( bsize->y_ppem ) )
|
| + continue;
|
| +
|
| + if ( w == FT_PIX_ROUND( bsize->x_ppem ) || ignore_width )
|
| + {
|
| + FT_TRACE3(( "FT_Match_Size: bitmap strike %d matches\n", i ));
|
| +
|
| + if ( size_index )
|
| + *size_index = (FT_ULong)i;
|
| +
|
| + return FT_Err_Ok;
|
| + }
|
| + }
|
| +
|
| + return FT_THROW( Invalid_Pixel_Size );
|
| + }
|
| +
|
| +
|
| + /* documentation is in ftobjs.h */
|
| +
|
| + FT_BASE_DEF( void )
|
| + ft_synthesize_vertical_metrics( FT_Glyph_Metrics* metrics,
|
| + FT_Pos advance )
|
| + {
|
| + FT_Pos height = metrics->height;
|
| +
|
| +
|
| + /* compensate for glyph with bbox above/below the baseline */
|
| + if ( metrics->horiBearingY < 0 )
|
| + {
|
| + if ( height < metrics->horiBearingY )
|
| + height = metrics->horiBearingY;
|
| + }
|
| + else if ( metrics->horiBearingY > 0 )
|
| + height -= metrics->horiBearingY;
|
| +
|
| + /* the factor 1.2 is a heuristical value */
|
| + if ( !advance )
|
| + advance = height * 12 / 10;
|
| +
|
| + metrics->vertBearingX = metrics->horiBearingX - metrics->horiAdvance / 2;
|
| + metrics->vertBearingY = ( advance - height ) / 2;
|
| + metrics->vertAdvance = advance;
|
| + }
|
| +
|
| +
|
| + static void
|
| + ft_recompute_scaled_metrics( FT_Face face,
|
| + FT_Size_Metrics* metrics )
|
| + {
|
| + /* Compute root ascender, descender, test height, and max_advance */
|
| +
|
| +#ifdef GRID_FIT_METRICS
|
| + metrics->ascender = FT_PIX_CEIL( FT_MulFix( face->ascender,
|
| + metrics->y_scale ) );
|
| +
|
| + metrics->descender = FT_PIX_FLOOR( FT_MulFix( face->descender,
|
| + metrics->y_scale ) );
|
| +
|
| + metrics->height = FT_PIX_ROUND( FT_MulFix( face->height,
|
| + metrics->y_scale ) );
|
| +
|
| + metrics->max_advance = FT_PIX_ROUND( FT_MulFix( face->max_advance_width,
|
| + metrics->x_scale ) );
|
| +#else /* !GRID_FIT_METRICS */
|
| + metrics->ascender = FT_MulFix( face->ascender,
|
| + metrics->y_scale );
|
| +
|
| + metrics->descender = FT_MulFix( face->descender,
|
| + metrics->y_scale );
|
| +
|
| + metrics->height = FT_MulFix( face->height,
|
| + metrics->y_scale );
|
| +
|
| + metrics->max_advance = FT_MulFix( face->max_advance_width,
|
| + metrics->x_scale );
|
| +#endif /* !GRID_FIT_METRICS */
|
| + }
|
| +
|
| +
|
| + FT_BASE_DEF( void )
|
| + FT_Select_Metrics( FT_Face face,
|
| + FT_ULong strike_index )
|
| + {
|
| + FT_Size_Metrics* metrics;
|
| + FT_Bitmap_Size* bsize;
|
| +
|
| +
|
| + metrics = &face->size->metrics;
|
| + bsize = face->available_sizes + strike_index;
|
| +
|
| + metrics->x_ppem = (FT_UShort)( ( bsize->x_ppem + 32 ) >> 6 );
|
| + metrics->y_ppem = (FT_UShort)( ( bsize->y_ppem + 32 ) >> 6 );
|
| +
|
| + if ( FT_IS_SCALABLE( face ) )
|
| + {
|
| + metrics->x_scale = FT_DivFix( bsize->x_ppem,
|
| + face->units_per_EM );
|
| + metrics->y_scale = FT_DivFix( bsize->y_ppem,
|
| + face->units_per_EM );
|
| +
|
| + ft_recompute_scaled_metrics( face, metrics );
|
| + }
|
| + else
|
| + {
|
| + metrics->x_scale = 1L << 16;
|
| + metrics->y_scale = 1L << 16;
|
| + metrics->ascender = bsize->y_ppem;
|
| + metrics->descender = 0;
|
| + metrics->height = bsize->height << 6;
|
| + metrics->max_advance = bsize->x_ppem;
|
| + }
|
| +
|
| + FT_TRACE5(( "FT_Select_Metrics:\n" ));
|
| + FT_TRACE5(( " x scale: %d (%f)\n",
|
| + metrics->x_scale, metrics->x_scale / 65536.0 ));
|
| + FT_TRACE5(( " y scale: %d (%f)\n",
|
| + metrics->y_scale, metrics->y_scale / 65536.0 ));
|
| + FT_TRACE5(( " ascender: %f\n", metrics->ascender / 64.0 ));
|
| + FT_TRACE5(( " descender: %f\n", metrics->descender / 64.0 ));
|
| + FT_TRACE5(( " height: %f\n", metrics->height / 64.0 ));
|
| + FT_TRACE5(( " max advance: %f\n", metrics->max_advance / 64.0 ));
|
| + FT_TRACE5(( " x ppem: %d\n", metrics->x_ppem ));
|
| + FT_TRACE5(( " y ppem: %d\n", metrics->y_ppem ));
|
| + }
|
| +
|
| +
|
| + FT_BASE_DEF( void )
|
| + FT_Request_Metrics( FT_Face face,
|
| + FT_Size_Request req )
|
| + {
|
| + FT_Size_Metrics* metrics;
|
| +
|
| +
|
| + metrics = &face->size->metrics;
|
| +
|
| + if ( FT_IS_SCALABLE( face ) )
|
| + {
|
| + FT_Long w = 0, h = 0, scaled_w = 0, scaled_h = 0;
|
| +
|
| +
|
| + switch ( req->type )
|
| + {
|
| + case FT_SIZE_REQUEST_TYPE_NOMINAL:
|
| + w = h = face->units_per_EM;
|
| + break;
|
| +
|
| + case FT_SIZE_REQUEST_TYPE_REAL_DIM:
|
| + w = h = face->ascender - face->descender;
|
| + break;
|
| +
|
| + case FT_SIZE_REQUEST_TYPE_BBOX:
|
| + w = face->bbox.xMax - face->bbox.xMin;
|
| + h = face->bbox.yMax - face->bbox.yMin;
|
| + break;
|
| +
|
| + case FT_SIZE_REQUEST_TYPE_CELL:
|
| + w = face->max_advance_width;
|
| + h = face->ascender - face->descender;
|
| + break;
|
| +
|
| + case FT_SIZE_REQUEST_TYPE_SCALES:
|
| + metrics->x_scale = (FT_Fixed)req->width;
|
| + metrics->y_scale = (FT_Fixed)req->height;
|
| + if ( !metrics->x_scale )
|
| + metrics->x_scale = metrics->y_scale;
|
| + else if ( !metrics->y_scale )
|
| + metrics->y_scale = metrics->x_scale;
|
| + goto Calculate_Ppem;
|
| +
|
| + case FT_SIZE_REQUEST_TYPE_MAX:
|
| + break;
|
| + }
|
| +
|
| + /* to be on the safe side */
|
| + if ( w < 0 )
|
| + w = -w;
|
| +
|
| + if ( h < 0 )
|
| + h = -h;
|
| +
|
| + scaled_w = FT_REQUEST_WIDTH ( req );
|
| + scaled_h = FT_REQUEST_HEIGHT( req );
|
| +
|
| + /* determine scales */
|
| + if ( req->width )
|
| + {
|
| + metrics->x_scale = FT_DivFix( scaled_w, w );
|
| +
|
| + if ( req->height )
|
| + {
|
| + metrics->y_scale = FT_DivFix( scaled_h, h );
|
| +
|
| + if ( req->type == FT_SIZE_REQUEST_TYPE_CELL )
|
| + {
|
| + if ( metrics->y_scale > metrics->x_scale )
|
| + metrics->y_scale = metrics->x_scale;
|
| + else
|
| + metrics->x_scale = metrics->y_scale;
|
| + }
|
| + }
|
| + else
|
| + {
|
| + metrics->y_scale = metrics->x_scale;
|
| + scaled_h = FT_MulDiv( scaled_w, h, w );
|
| + }
|
| + }
|
| + else
|
| + {
|
| + metrics->x_scale = metrics->y_scale = FT_DivFix( scaled_h, h );
|
| + scaled_w = FT_MulDiv( scaled_h, w, h );
|
| + }
|
| +
|
| + Calculate_Ppem:
|
| + /* calculate the ppems */
|
| + if ( req->type != FT_SIZE_REQUEST_TYPE_NOMINAL )
|
| + {
|
| + scaled_w = FT_MulFix( face->units_per_EM, metrics->x_scale );
|
| + scaled_h = FT_MulFix( face->units_per_EM, metrics->y_scale );
|
| + }
|
| +
|
| + metrics->x_ppem = (FT_UShort)( ( scaled_w + 32 ) >> 6 );
|
| + metrics->y_ppem = (FT_UShort)( ( scaled_h + 32 ) >> 6 );
|
| +
|
| + ft_recompute_scaled_metrics( face, metrics );
|
| + }
|
| + else
|
| + {
|
| + FT_ZERO( metrics );
|
| + metrics->x_scale = 1L << 16;
|
| + metrics->y_scale = 1L << 16;
|
| + }
|
| +
|
| + FT_TRACE5(( "FT_Request_Metrics:\n" ));
|
| + FT_TRACE5(( " x scale: %d (%f)\n",
|
| + metrics->x_scale, metrics->x_scale / 65536.0 ));
|
| + FT_TRACE5(( " y scale: %d (%f)\n",
|
| + metrics->y_scale, metrics->y_scale / 65536.0 ));
|
| + FT_TRACE5(( " ascender: %f\n", metrics->ascender / 64.0 ));
|
| + FT_TRACE5(( " descender: %f\n", metrics->descender / 64.0 ));
|
| + FT_TRACE5(( " height: %f\n", metrics->height / 64.0 ));
|
| + FT_TRACE5(( " max advance: %f\n", metrics->max_advance / 64.0 ));
|
| + FT_TRACE5(( " x ppem: %d\n", metrics->x_ppem ));
|
| + FT_TRACE5(( " y ppem: %d\n", metrics->y_ppem ));
|
| + }
|
| +
|
| +
|
| + /* documentation is in freetype.h */
|
| +
|
| + FT_EXPORT_DEF( FT_Error )
|
| + FT_Select_Size( FT_Face face,
|
| + FT_Int strike_index )
|
| + {
|
| + FT_Driver_Class clazz;
|
| +
|
| +
|
| + if ( !face || !FT_HAS_FIXED_SIZES( face ) )
|
| + return FT_THROW( Invalid_Face_Handle );
|
| +
|
| + if ( strike_index < 0 || strike_index >= face->num_fixed_sizes )
|
| + return FT_THROW( Invalid_Argument );
|
| +
|
| + clazz = face->driver->clazz;
|
| +
|
| + if ( clazz->select_size )
|
| + {
|
| + FT_Error error;
|
| +
|
| +
|
| + error = clazz->select_size( face->size, (FT_ULong)strike_index );
|
| +
|
| +#ifdef FT_DEBUG_LEVEL_TRACE
|
| + {
|
| + FT_Size_Metrics* metrics = &face->size->metrics;
|
| +
|
| +
|
| + FT_TRACE5(( "FT_Select_Size (font driver's `select_size'):\n" ));
|
| + FT_TRACE5(( " x scale: %d (%f)\n",
|
| + metrics->x_scale, metrics->x_scale / 65536.0 ));
|
| + FT_TRACE5(( " y scale: %d (%f)\n",
|
| + metrics->y_scale, metrics->y_scale / 65536.0 ));
|
| + FT_TRACE5(( " ascender: %f\n", metrics->ascender / 64.0 ));
|
| + FT_TRACE5(( " descender: %f\n", metrics->descender / 64.0 ));
|
| + FT_TRACE5(( " height: %f\n", metrics->height / 64.0 ));
|
| + FT_TRACE5(( " max advance: %f\n", metrics->max_advance / 64.0 ));
|
| + FT_TRACE5(( " x ppem: %d\n", metrics->x_ppem ));
|
| + FT_TRACE5(( " y ppem: %d\n", metrics->y_ppem ));
|
| + }
|
| +#endif
|
| +
|
| + return error;
|
| + }
|
| +
|
| + FT_Select_Metrics( face, (FT_ULong)strike_index );
|
| +
|
| + return FT_Err_Ok;
|
| + }
|
| +
|
| +
|
| + /* documentation is in freetype.h */
|
| +
|
| + FT_EXPORT_DEF( FT_Error )
|
| + FT_Request_Size( FT_Face face,
|
| + FT_Size_Request req )
|
| + {
|
| + FT_Driver_Class clazz;
|
| + FT_ULong strike_index;
|
| +
|
| +
|
| + if ( !face )
|
| + return FT_THROW( Invalid_Face_Handle );
|
| +
|
| + if ( !req || req->width < 0 || req->height < 0 ||
|
| + req->type >= FT_SIZE_REQUEST_TYPE_MAX )
|
| + return FT_THROW( Invalid_Argument );
|
| +
|
| + clazz = face->driver->clazz;
|
| +
|
| + if ( clazz->request_size )
|
| + {
|
| + FT_Error error;
|
| +
|
| +
|
| + error = clazz->request_size( face->size, req );
|
| +
|
| +#ifdef FT_DEBUG_LEVEL_TRACE
|
| + {
|
| + FT_Size_Metrics* metrics = &face->size->metrics;
|
| +
|
| +
|
| + FT_TRACE5(( "FT_Request_Size (font driver's `request_size'):\n" ));
|
| + FT_TRACE5(( " x scale: %d (%f)\n",
|
| + metrics->x_scale, metrics->x_scale / 65536.0 ));
|
| + FT_TRACE5(( " y scale: %d (%f)\n",
|
| + metrics->y_scale, metrics->y_scale / 65536.0 ));
|
| + FT_TRACE5(( " ascender: %f\n", metrics->ascender / 64.0 ));
|
| + FT_TRACE5(( " descender: %f\n", metrics->descender / 64.0 ));
|
| + FT_TRACE5(( " height: %f\n", metrics->height / 64.0 ));
|
| + FT_TRACE5(( " max advance: %f\n", metrics->max_advance / 64.0 ));
|
| + FT_TRACE5(( " x ppem: %d\n", metrics->x_ppem ));
|
| + FT_TRACE5(( " y ppem: %d\n", metrics->y_ppem ));
|
| + }
|
| +#endif
|
| +
|
| + return error;
|
| + }
|
| +
|
| + /*
|
| + * The reason that a driver doesn't have `request_size' defined is
|
| + * either that the scaling here suffices or that the supported formats
|
| + * are bitmap-only and size matching is not implemented.
|
| + *
|
| + * In the latter case, a simple size matching is done.
|
| + */
|
| + if ( !FT_IS_SCALABLE( face ) && FT_HAS_FIXED_SIZES( face ) )
|
| + {
|
| + FT_Error error;
|
| +
|
| +
|
| + error = FT_Match_Size( face, req, 0, &strike_index );
|
| + if ( error )
|
| + return error;
|
| +
|
| + return FT_Select_Size( face, (FT_Int)strike_index );
|
| + }
|
| +
|
| + FT_Request_Metrics( face, req );
|
| +
|
| + return FT_Err_Ok;
|
| + }
|
| +
|
| +
|
| + /* documentation is in freetype.h */
|
| +
|
| + FT_EXPORT_DEF( FT_Error )
|
| + FT_Set_Char_Size( FT_Face face,
|
| + FT_F26Dot6 char_width,
|
| + FT_F26Dot6 char_height,
|
| + FT_UInt horz_resolution,
|
| + FT_UInt vert_resolution )
|
| + {
|
| + FT_Size_RequestRec req;
|
| +
|
| +
|
| + /* check of `face' delayed to `FT_Request_Size' */
|
| +
|
| + if ( !char_width )
|
| + char_width = char_height;
|
| + else if ( !char_height )
|
| + char_height = char_width;
|
| +
|
| + if ( !horz_resolution )
|
| + horz_resolution = vert_resolution;
|
| + else if ( !vert_resolution )
|
| + vert_resolution = horz_resolution;
|
| +
|
| + if ( char_width < 1 * 64 )
|
| + char_width = 1 * 64;
|
| + if ( char_height < 1 * 64 )
|
| + char_height = 1 * 64;
|
| +
|
| + if ( !horz_resolution )
|
| + horz_resolution = vert_resolution = 72;
|
| +
|
| + req.type = FT_SIZE_REQUEST_TYPE_NOMINAL;
|
| + req.width = char_width;
|
| + req.height = char_height;
|
| + req.horiResolution = horz_resolution;
|
| + req.vertResolution = vert_resolution;
|
| +
|
| + return FT_Request_Size( face, &req );
|
| + }
|
| +
|
| +
|
| + /* documentation is in freetype.h */
|
| +
|
| + FT_EXPORT_DEF( FT_Error )
|
| + FT_Set_Pixel_Sizes( FT_Face face,
|
| + FT_UInt pixel_width,
|
| + FT_UInt pixel_height )
|
| + {
|
| + FT_Size_RequestRec req;
|
| +
|
| +
|
| + /* check of `face' delayed to `FT_Request_Size' */
|
| +
|
| + if ( pixel_width == 0 )
|
| + pixel_width = pixel_height;
|
| + else if ( pixel_height == 0 )
|
| + pixel_height = pixel_width;
|
| +
|
| + if ( pixel_width < 1 )
|
| + pixel_width = 1;
|
| + if ( pixel_height < 1 )
|
| + pixel_height = 1;
|
| +
|
| + /* use `>=' to avoid potential compiler warning on 16bit platforms */
|
| + if ( pixel_width >= 0xFFFFU )
|
| + pixel_width = 0xFFFFU;
|
| + if ( pixel_height >= 0xFFFFU )
|
| + pixel_height = 0xFFFFU;
|
| +
|
| + req.type = FT_SIZE_REQUEST_TYPE_NOMINAL;
|
| + req.width = (FT_Long)( pixel_width << 6 );
|
| + req.height = (FT_Long)( pixel_height << 6 );
|
| + req.horiResolution = 0;
|
| + req.vertResolution = 0;
|
| +
|
| + return FT_Request_Size( face, &req );
|
| + }
|
| +
|
| +
|
| + /* documentation is in freetype.h */
|
| +
|
| + FT_EXPORT_DEF( FT_Error )
|
| + FT_Get_Kerning( FT_Face face,
|
| + FT_UInt left_glyph,
|
| + FT_UInt right_glyph,
|
| + FT_UInt kern_mode,
|
| + FT_Vector *akerning )
|
| + {
|
| + FT_Error error = FT_Err_Ok;
|
| + FT_Driver driver;
|
| +
|
| +
|
| + if ( !face )
|
| + return FT_THROW( Invalid_Face_Handle );
|
| +
|
| + if ( !akerning )
|
| + return FT_THROW( Invalid_Argument );
|
| +
|
| + driver = face->driver;
|
| +
|
| + akerning->x = 0;
|
| + akerning->y = 0;
|
| +
|
| + if ( driver->clazz->get_kerning )
|
| + {
|
| + error = driver->clazz->get_kerning( face,
|
| + left_glyph,
|
| + right_glyph,
|
| + akerning );
|
| + if ( !error )
|
| + {
|
| + if ( kern_mode != FT_KERNING_UNSCALED )
|
| + {
|
| + akerning->x = FT_MulFix( akerning->x, face->size->metrics.x_scale );
|
| + akerning->y = FT_MulFix( akerning->y, face->size->metrics.y_scale );
|
| +
|
| + if ( kern_mode != FT_KERNING_UNFITTED )
|
| + {
|
| + FT_Pos orig_x = akerning->x;
|
| + FT_Pos orig_y = akerning->y;
|
| +
|
| +
|
| + /* we scale down kerning values for small ppem values */
|
| + /* to avoid that rounding makes them too big. */
|
| + /* `25' has been determined heuristically. */
|
| + if ( face->size->metrics.x_ppem < 25 )
|
| + akerning->x = FT_MulDiv( orig_x,
|
| + face->size->metrics.x_ppem, 25 );
|
| + if ( face->size->metrics.y_ppem < 25 )
|
| + akerning->y = FT_MulDiv( orig_y,
|
| + face->size->metrics.y_ppem, 25 );
|
| +
|
| + akerning->x = FT_PIX_ROUND( akerning->x );
|
| + akerning->y = FT_PIX_ROUND( akerning->y );
|
| +
|
| +#ifdef FT_DEBUG_LEVEL_TRACE
|
| + {
|
| + FT_Pos orig_x_rounded = FT_PIX_ROUND( orig_x );
|
| + FT_Pos orig_y_rounded = FT_PIX_ROUND( orig_y );
|
| +
|
| +
|
| + if ( akerning->x != orig_x_rounded ||
|
| + akerning->y != orig_y_rounded )
|
| + FT_TRACE5(( "FT_Get_Kerning: horizontal kerning"
|
| + " (%d, %d) scaled down to (%d, %d) pixels\n",
|
| + orig_x_rounded / 64, orig_y_rounded / 64,
|
| + akerning->x / 64, akerning->y / 64 ));
|
| + }
|
| +#endif
|
| + }
|
| + }
|
| + }
|
| + }
|
| +
|
| + return error;
|
| + }
|
| +
|
| +
|
| + /* documentation is in freetype.h */
|
| +
|
| + FT_EXPORT_DEF( FT_Error )
|
| + FT_Get_Track_Kerning( FT_Face face,
|
| + FT_Fixed point_size,
|
| + FT_Int degree,
|
| + FT_Fixed* akerning )
|
| + {
|
| + FT_Service_Kerning service;
|
| + FT_Error error = FT_Err_Ok;
|
| +
|
| +
|
| + if ( !face )
|
| + return FT_THROW( Invalid_Face_Handle );
|
| +
|
| + if ( !akerning )
|
| + return FT_THROW( Invalid_Argument );
|
| +
|
| + FT_FACE_FIND_SERVICE( face, service, KERNING );
|
| + if ( !service )
|
| + return FT_THROW( Unimplemented_Feature );
|
| +
|
| + error = service->get_track( face,
|
| + point_size,
|
| + degree,
|
| + akerning );
|
| +
|
| + return error;
|
| + }
|
| +
|
| +
|
| + /* documentation is in freetype.h */
|
| +
|
| + FT_EXPORT_DEF( FT_Error )
|
| + FT_Select_Charmap( FT_Face face,
|
| + FT_Encoding encoding )
|
| + {
|
| + FT_CharMap* cur;
|
| + FT_CharMap* limit;
|
| +
|
| +
|
| + if ( !face )
|
| + return FT_THROW( Invalid_Face_Handle );
|
| +
|
| + if ( encoding == FT_ENCODING_NONE )
|
| + return FT_THROW( Invalid_Argument );
|
| +
|
| + /* FT_ENCODING_UNICODE is special. We try to find the `best' Unicode */
|
| + /* charmap available, i.e., one with UCS-4 characters, if possible. */
|
| + /* */
|
| + /* This is done by find_unicode_charmap() above, to share code. */
|
| + if ( encoding == FT_ENCODING_UNICODE )
|
| + return find_unicode_charmap( face );
|
| +
|
| + cur = face->charmaps;
|
| + if ( !cur )
|
| + return FT_THROW( Invalid_CharMap_Handle );
|
| +
|
| + limit = cur + face->num_charmaps;
|
| +
|
| + for ( ; cur < limit; cur++ )
|
| + {
|
| + if ( cur[0]->encoding == encoding )
|
| + {
|
| + face->charmap = cur[0];
|
| + return 0;
|
| + }
|
| + }
|
| +
|
| + return FT_THROW( Invalid_Argument );
|
| + }
|
| +
|
| +
|
| + /* documentation is in freetype.h */
|
| +
|
| + FT_EXPORT_DEF( FT_Error )
|
| + FT_Set_Charmap( FT_Face face,
|
| + FT_CharMap charmap )
|
| + {
|
| + FT_CharMap* cur;
|
| + FT_CharMap* limit;
|
| +
|
| +
|
| + if ( !face )
|
| + return FT_THROW( Invalid_Face_Handle );
|
| +
|
| + cur = face->charmaps;
|
| + if ( !cur || !charmap )
|
| + return FT_THROW( Invalid_CharMap_Handle );
|
| +
|
| + if ( FT_Get_CMap_Format( charmap ) == 14 )
|
| + return FT_THROW( Invalid_Argument );
|
| +
|
| + limit = cur + face->num_charmaps;
|
| +
|
| + for ( ; cur < limit; cur++ )
|
| + {
|
| + if ( cur[0] == charmap )
|
| + {
|
| + face->charmap = cur[0];
|
| + return FT_Err_Ok;
|
| + }
|
| + }
|
| +
|
| + return FT_THROW( Invalid_Argument );
|
| + }
|
| +
|
| +
|
| + /* documentation is in freetype.h */
|
| +
|
| + FT_EXPORT_DEF( FT_Int )
|
| + FT_Get_Charmap_Index( FT_CharMap charmap )
|
| + {
|
| + FT_Int i;
|
| +
|
| +
|
| + if ( !charmap || !charmap->face )
|
| + return -1;
|
| +
|
| + for ( i = 0; i < charmap->face->num_charmaps; i++ )
|
| + if ( charmap->face->charmaps[i] == charmap )
|
| + break;
|
| +
|
| + FT_ASSERT( i < charmap->face->num_charmaps );
|
| +
|
| + return i;
|
| + }
|
| +
|
| +
|
| + static void
|
| + ft_cmap_done_internal( FT_CMap cmap )
|
| + {
|
| + FT_CMap_Class clazz = cmap->clazz;
|
| + FT_Face face = cmap->charmap.face;
|
| + FT_Memory memory = FT_FACE_MEMORY( face );
|
| +
|
| +
|
| + if ( clazz->done )
|
| + clazz->done( cmap );
|
| +
|
| + FT_FREE( cmap );
|
| + }
|
| +
|
| +
|
| + FT_BASE_DEF( void )
|
| + FT_CMap_Done( FT_CMap cmap )
|
| + {
|
| + if ( cmap )
|
| + {
|
| + FT_Face face = cmap->charmap.face;
|
| + FT_Memory memory = FT_FACE_MEMORY( face );
|
| + FT_Error error;
|
| + FT_Int i, j;
|
| +
|
| +
|
| + for ( i = 0; i < face->num_charmaps; i++ )
|
| + {
|
| + if ( (FT_CMap)face->charmaps[i] == cmap )
|
| + {
|
| + FT_CharMap last_charmap = face->charmaps[face->num_charmaps - 1];
|
| +
|
| +
|
| + if ( FT_RENEW_ARRAY( face->charmaps,
|
| + face->num_charmaps,
|
| + face->num_charmaps - 1 ) )
|
| + return;
|
| +
|
| + /* remove it from our list of charmaps */
|
| + for ( j = i + 1; j < face->num_charmaps; j++ )
|
| + {
|
| + if ( j == face->num_charmaps - 1 )
|
| + face->charmaps[j - 1] = last_charmap;
|
| + else
|
| + face->charmaps[j - 1] = face->charmaps[j];
|
| + }
|
| +
|
| + face->num_charmaps--;
|
| +
|
| + if ( (FT_CMap)face->charmap == cmap )
|
| + face->charmap = NULL;
|
| +
|
| + ft_cmap_done_internal( cmap );
|
| +
|
| + break;
|
| + }
|
| + }
|
| + }
|
| + }
|
| +
|
| +
|
| + FT_BASE_DEF( FT_Error )
|
| + FT_CMap_New( FT_CMap_Class clazz,
|
| + FT_Pointer init_data,
|
| + FT_CharMap charmap,
|
| + FT_CMap *acmap )
|
| + {
|
| + FT_Error error = FT_Err_Ok;
|
| + FT_Face face;
|
| + FT_Memory memory;
|
| + FT_CMap cmap = NULL;
|
| +
|
| +
|
| + if ( clazz == NULL || charmap == NULL || charmap->face == NULL )
|
| + return FT_THROW( Invalid_Argument );
|
| +
|
| + face = charmap->face;
|
| + memory = FT_FACE_MEMORY( face );
|
| +
|
| + if ( !FT_ALLOC( cmap, clazz->size ) )
|
| + {
|
| + cmap->charmap = *charmap;
|
| + cmap->clazz = clazz;
|
| +
|
| + if ( clazz->init )
|
| + {
|
| + error = clazz->init( cmap, init_data );
|
| + if ( error )
|
| + goto Fail;
|
| + }
|
| +
|
| + /* add it to our list of charmaps */
|
| + if ( FT_RENEW_ARRAY( face->charmaps,
|
| + face->num_charmaps,
|
| + face->num_charmaps + 1 ) )
|
| + goto Fail;
|
| +
|
| + face->charmaps[face->num_charmaps++] = (FT_CharMap)cmap;
|
| + }
|
| +
|
| + Exit:
|
| + if ( acmap )
|
| + *acmap = cmap;
|
| +
|
| + return error;
|
| +
|
| + Fail:
|
| + ft_cmap_done_internal( cmap );
|
| + cmap = NULL;
|
| + goto Exit;
|
| + }
|
| +
|
| +
|
| + /* documentation is in freetype.h */
|
| +
|
| + FT_EXPORT_DEF( FT_UInt )
|
| + FT_Get_Char_Index( FT_Face face,
|
| + FT_ULong charcode )
|
| + {
|
| + FT_UInt result = 0;
|
| +
|
| +
|
| + if ( face && face->charmap )
|
| + {
|
| + FT_CMap cmap = FT_CMAP( face->charmap );
|
| +
|
| +
|
| + if ( charcode > 0xFFFFFFFFUL )
|
| + {
|
| + FT_TRACE1(( "FT_Get_Char_Index: too large charcode" ));
|
| + FT_TRACE1(( " 0x%x is truncated\n", charcode ));
|
| + }
|
| +
|
| + result = cmap->clazz->char_index( cmap, (FT_UInt32)charcode );
|
| + if ( result >= (FT_UInt)face->num_glyphs )
|
| + result = 0;
|
| + }
|
| +
|
| + return result;
|
| + }
|
| +
|
| +
|
| + /* documentation is in freetype.h */
|
| +
|
| + FT_EXPORT_DEF( FT_ULong )
|
| + FT_Get_First_Char( FT_Face face,
|
| + FT_UInt *agindex )
|
| + {
|
| + FT_ULong result = 0;
|
| + FT_UInt gindex = 0;
|
| +
|
| +
|
| + /* only do something if we have a charmap, and we have glyphs at all */
|
| + if ( face && face->charmap && face->num_glyphs )
|
| + {
|
| + gindex = FT_Get_Char_Index( face, 0 );
|
| + if ( gindex == 0 )
|
| + result = FT_Get_Next_Char( face, 0, &gindex );
|
| + }
|
| +
|
| + if ( agindex )
|
| + *agindex = gindex;
|
| +
|
| + return result;
|
| + }
|
| +
|
| +
|
| + /* documentation is in freetype.h */
|
| +
|
| + FT_EXPORT_DEF( FT_ULong )
|
| + FT_Get_Next_Char( FT_Face face,
|
| + FT_ULong charcode,
|
| + FT_UInt *agindex )
|
| + {
|
| + FT_ULong result = 0;
|
| + FT_UInt gindex = 0;
|
| +
|
| +
|
| + if ( face && face->charmap && face->num_glyphs )
|
| + {
|
| + FT_UInt32 code = (FT_UInt32)charcode;
|
| + FT_CMap cmap = FT_CMAP( face->charmap );
|
| +
|
| +
|
| + do
|
| + {
|
| + gindex = cmap->clazz->char_next( cmap, &code );
|
| +
|
| + } while ( gindex >= (FT_UInt)face->num_glyphs );
|
| +
|
| + result = ( gindex == 0 ) ? 0 : code;
|
| + }
|
| +
|
| + if ( agindex )
|
| + *agindex = gindex;
|
| +
|
| + return result;
|
| + }
|
| +
|
| +
|
| + /* documentation is in freetype.h */
|
| +
|
| + FT_EXPORT_DEF( FT_UInt )
|
| + FT_Face_GetCharVariantIndex( FT_Face face,
|
| + FT_ULong charcode,
|
| + FT_ULong variantSelector )
|
| + {
|
| + FT_UInt result = 0;
|
| +
|
| +
|
| + if ( face &&
|
| + face->charmap &&
|
| + face->charmap->encoding == FT_ENCODING_UNICODE )
|
| + {
|
| + FT_CharMap charmap = find_variant_selector_charmap( face );
|
| + FT_CMap ucmap = FT_CMAP( face->charmap );
|
| +
|
| +
|
| + if ( charmap != NULL )
|
| + {
|
| + FT_CMap vcmap = FT_CMAP( charmap );
|
| +
|
| +
|
| + if ( charcode > 0xFFFFFFFFUL )
|
| + {
|
| + FT_TRACE1(( "FT_Get_Char_Index: too large charcode" ));
|
| + FT_TRACE1(( " 0x%x is truncated\n", charcode ));
|
| + }
|
| + if ( variantSelector > 0xFFFFFFFFUL )
|
| + {
|
| + FT_TRACE1(( "FT_Get_Char_Index: too large variantSelector" ));
|
| + FT_TRACE1(( " 0x%x is truncated\n", variantSelector ));
|
| + }
|
| +
|
| + result = vcmap->clazz->char_var_index( vcmap, ucmap,
|
| + (FT_UInt32)charcode,
|
| + (FT_UInt32)variantSelector );
|
| + }
|
| + }
|
| +
|
| + return result;
|
| + }
|
| +
|
| +
|
| + /* documentation is in freetype.h */
|
| +
|
| + FT_EXPORT_DEF( FT_Int )
|
| + FT_Face_GetCharVariantIsDefault( FT_Face face,
|
| + FT_ULong charcode,
|
| + FT_ULong variantSelector )
|
| + {
|
| + FT_Int result = -1;
|
| +
|
| +
|
| + if ( face )
|
| + {
|
| + FT_CharMap charmap = find_variant_selector_charmap( face );
|
| +
|
| +
|
| + if ( charmap != NULL )
|
| + {
|
| + FT_CMap vcmap = FT_CMAP( charmap );
|
| +
|
| +
|
| + if ( charcode > 0xFFFFFFFFUL )
|
| + {
|
| + FT_TRACE1(( "FT_Get_Char_Index: too large charcode" ));
|
| + FT_TRACE1(( " 0x%x is truncated\n", charcode ));
|
| + }
|
| + if ( variantSelector > 0xFFFFFFFFUL )
|
| + {
|
| + FT_TRACE1(( "FT_Get_Char_Index: too large variantSelector" ));
|
| + FT_TRACE1(( " 0x%x is truncated\n", variantSelector ));
|
| + }
|
| +
|
| + result = vcmap->clazz->char_var_default( vcmap,
|
| + (FT_UInt32)charcode,
|
| + (FT_UInt32)variantSelector );
|
| + }
|
| + }
|
| +
|
| + return result;
|
| + }
|
| +
|
| +
|
| + /* documentation is in freetype.h */
|
| +
|
| + FT_EXPORT_DEF( FT_UInt32* )
|
| + FT_Face_GetVariantSelectors( FT_Face face )
|
| + {
|
| + FT_UInt32 *result = NULL;
|
| +
|
| +
|
| + if ( face )
|
| + {
|
| + FT_CharMap charmap = find_variant_selector_charmap( face );
|
| +
|
| +
|
| + if ( charmap != NULL )
|
| + {
|
| + FT_CMap vcmap = FT_CMAP( charmap );
|
| + FT_Memory memory = FT_FACE_MEMORY( face );
|
| +
|
| +
|
| + result = vcmap->clazz->variant_list( vcmap, memory );
|
| + }
|
| + }
|
| +
|
| + return result;
|
| + }
|
| +
|
| +
|
| + /* documentation is in freetype.h */
|
| +
|
| + FT_EXPORT_DEF( FT_UInt32* )
|
| + FT_Face_GetVariantsOfChar( FT_Face face,
|
| + FT_ULong charcode )
|
| + {
|
| + FT_UInt32 *result = NULL;
|
| +
|
| +
|
| + if ( face )
|
| + {
|
| + FT_CharMap charmap = find_variant_selector_charmap( face );
|
| +
|
| +
|
| + if ( charmap != NULL )
|
| + {
|
| + FT_CMap vcmap = FT_CMAP( charmap );
|
| + FT_Memory memory = FT_FACE_MEMORY( face );
|
| +
|
| +
|
| + if ( charcode > 0xFFFFFFFFUL )
|
| + {
|
| + FT_TRACE1(( "FT_Get_Char_Index: too large charcode" ));
|
| + FT_TRACE1(( " 0x%x is truncated\n", charcode ));
|
| + }
|
| +
|
| + result = vcmap->clazz->charvariant_list( vcmap, memory,
|
| + (FT_UInt32)charcode );
|
| + }
|
| + }
|
| + return result;
|
| + }
|
| +
|
| +
|
| + /* documentation is in freetype.h */
|
| +
|
| + FT_EXPORT_DEF( FT_UInt32* )
|
| + FT_Face_GetCharsOfVariant( FT_Face face,
|
| + FT_ULong variantSelector )
|
| + {
|
| + FT_UInt32 *result = NULL;
|
| +
|
| +
|
| + if ( face )
|
| + {
|
| + FT_CharMap charmap = find_variant_selector_charmap( face );
|
| +
|
| +
|
| + if ( charmap != NULL )
|
| + {
|
| + FT_CMap vcmap = FT_CMAP( charmap );
|
| + FT_Memory memory = FT_FACE_MEMORY( face );
|
| +
|
| +
|
| + if ( variantSelector > 0xFFFFFFFFUL )
|
| + {
|
| + FT_TRACE1(( "FT_Get_Char_Index: too large variantSelector" ));
|
| + FT_TRACE1(( " 0x%x is truncated\n", variantSelector ));
|
| + }
|
| +
|
| + result = vcmap->clazz->variantchar_list( vcmap, memory,
|
| + (FT_UInt32)variantSelector );
|
| + }
|
| + }
|
| +
|
| + return result;
|
| + }
|
| +
|
| +
|
| + /* documentation is in freetype.h */
|
| +
|
| + FT_EXPORT_DEF( FT_UInt )
|
| + FT_Get_Name_Index( FT_Face face,
|
| + FT_String* glyph_name )
|
| + {
|
| + FT_UInt result = 0;
|
| +
|
| +
|
| + if ( face &&
|
| + FT_HAS_GLYPH_NAMES( face ) &&
|
| + glyph_name )
|
| + {
|
| + FT_Service_GlyphDict service;
|
| +
|
| +
|
| + FT_FACE_LOOKUP_SERVICE( face,
|
| + service,
|
| + GLYPH_DICT );
|
| +
|
| + if ( service && service->name_index )
|
| + result = service->name_index( face, glyph_name );
|
| + }
|
| +
|
| + return result;
|
| + }
|
| +
|
| +
|
| + /* documentation is in freetype.h */
|
| +
|
| + FT_EXPORT_DEF( FT_Error )
|
| + FT_Get_Glyph_Name( FT_Face face,
|
| + FT_UInt glyph_index,
|
| + FT_Pointer buffer,
|
| + FT_UInt buffer_max )
|
| + {
|
| + FT_Error error;
|
| + FT_Service_GlyphDict service;
|
| +
|
| +
|
| + if ( !face )
|
| + return FT_THROW( Invalid_Face_Handle );
|
| +
|
| + if ( !buffer || buffer_max == 0 )
|
| + return FT_THROW( Invalid_Argument );
|
| +
|
| + /* clean up buffer */
|
| + ((FT_Byte*)buffer)[0] = '\0';
|
| +
|
| + if ( (FT_Long)glyph_index >= face->num_glyphs )
|
| + return FT_THROW( Invalid_Glyph_Index );
|
| +
|
| + if ( !FT_HAS_GLYPH_NAMES( face ) )
|
| + return FT_THROW( Invalid_Argument );
|
| +
|
| + FT_FACE_LOOKUP_SERVICE( face, service, GLYPH_DICT );
|
| + if ( service && service->get_name )
|
| + error = service->get_name( face, glyph_index, buffer, buffer_max );
|
| + else
|
| + error = FT_THROW( Invalid_Argument );
|
| +
|
| + return error;
|
| + }
|
| +
|
| +
|
| + /* documentation is in freetype.h */
|
| +
|
| + FT_EXPORT_DEF( const char* )
|
| + FT_Get_Postscript_Name( FT_Face face )
|
| + {
|
| + const char* result = NULL;
|
| +
|
| +
|
| + if ( !face )
|
| + goto Exit;
|
| +
|
| + if ( !result )
|
| + {
|
| + FT_Service_PsFontName service;
|
| +
|
| +
|
| + FT_FACE_LOOKUP_SERVICE( face,
|
| + service,
|
| + POSTSCRIPT_FONT_NAME );
|
| +
|
| + if ( service && service->get_ps_font_name )
|
| + result = service->get_ps_font_name( face );
|
| + }
|
| +
|
| + Exit:
|
| + return result;
|
| + }
|
| +
|
| +
|
| + /* documentation is in tttables.h */
|
| +
|
| + FT_EXPORT_DEF( void* )
|
| + FT_Get_Sfnt_Table( FT_Face face,
|
| + FT_Sfnt_Tag tag )
|
| + {
|
| + void* table = NULL;
|
| + FT_Service_SFNT_Table service;
|
| +
|
| +
|
| + if ( face && FT_IS_SFNT( face ) )
|
| + {
|
| + FT_FACE_FIND_SERVICE( face, service, SFNT_TABLE );
|
| + if ( service != NULL )
|
| + table = service->get_table( face, tag );
|
| + }
|
| +
|
| + return table;
|
| + }
|
| +
|
| +
|
| + /* documentation is in tttables.h */
|
| +
|
| + FT_EXPORT_DEF( FT_Error )
|
| + FT_Load_Sfnt_Table( FT_Face face,
|
| + FT_ULong tag,
|
| + FT_Long offset,
|
| + FT_Byte* buffer,
|
| + FT_ULong* length )
|
| + {
|
| + FT_Service_SFNT_Table service;
|
| +
|
| +
|
| + if ( !face || !FT_IS_SFNT( face ) )
|
| + return FT_THROW( Invalid_Face_Handle );
|
| +
|
| + FT_FACE_FIND_SERVICE( face, service, SFNT_TABLE );
|
| + if ( service == NULL )
|
| + return FT_THROW( Unimplemented_Feature );
|
| +
|
| + return service->load_table( face, tag, offset, buffer, length );
|
| + }
|
| +
|
| +
|
| + /* documentation is in tttables.h */
|
| +
|
| + FT_EXPORT_DEF( FT_Error )
|
| + FT_Sfnt_Table_Info( FT_Face face,
|
| + FT_UInt table_index,
|
| + FT_ULong *tag,
|
| + FT_ULong *length )
|
| + {
|
| + FT_Service_SFNT_Table service;
|
| + FT_ULong offset;
|
| +
|
| +
|
| + /* test for valid `length' delayed to `service->table_info' */
|
| +
|
| + if ( !face || !FT_IS_SFNT( face ) )
|
| + return FT_THROW( Invalid_Face_Handle );
|
| +
|
| + FT_FACE_FIND_SERVICE( face, service, SFNT_TABLE );
|
| + if ( service == NULL )
|
| + return FT_THROW( Unimplemented_Feature );
|
| +
|
| + return service->table_info( face, table_index, tag, &offset, length );
|
| + }
|
| +
|
| +
|
| + /* documentation is in tttables.h */
|
| +
|
| + FT_EXPORT_DEF( FT_ULong )
|
| + FT_Get_CMap_Language_ID( FT_CharMap charmap )
|
| + {
|
| + FT_Service_TTCMaps service;
|
| + FT_Face face;
|
| + TT_CMapInfo cmap_info;
|
| +
|
| +
|
| + if ( !charmap || !charmap->face )
|
| + return 0;
|
| +
|
| + face = charmap->face;
|
| + FT_FACE_FIND_SERVICE( face, service, TT_CMAP );
|
| + if ( service == NULL )
|
| + return 0;
|
| + if ( service->get_cmap_info( charmap, &cmap_info ))
|
| + return 0;
|
| +
|
| + return cmap_info.language;
|
| + }
|
| +
|
| +
|
| + /* documentation is in tttables.h */
|
| +
|
| + FT_EXPORT_DEF( FT_Long )
|
| + FT_Get_CMap_Format( FT_CharMap charmap )
|
| + {
|
| + FT_Service_TTCMaps service;
|
| + FT_Face face;
|
| + TT_CMapInfo cmap_info;
|
| +
|
| +
|
| + if ( !charmap || !charmap->face )
|
| + return -1;
|
| +
|
| + face = charmap->face;
|
| + FT_FACE_FIND_SERVICE( face, service, TT_CMAP );
|
| + if ( service == NULL )
|
| + return -1;
|
| + if ( service->get_cmap_info( charmap, &cmap_info ))
|
| + return -1;
|
| +
|
| + return cmap_info.format;
|
| + }
|
| +
|
| +
|
| + /* documentation is in ftsizes.h */
|
| +
|
| + FT_EXPORT_DEF( FT_Error )
|
| + FT_Activate_Size( FT_Size size )
|
| + {
|
| + FT_Face face;
|
| +
|
| +
|
| + if ( !size )
|
| + return FT_THROW( Invalid_Size_Handle );
|
| +
|
| + face = size->face;
|
| + if ( !face || !face->driver )
|
| + return FT_THROW( Invalid_Face_Handle );
|
| +
|
| + /* we don't need anything more complex than that; all size objects */
|
| + /* are already listed by the face */
|
| + face->size = size;
|
| +
|
| + return FT_Err_Ok;
|
| + }
|
| +
|
| +
|
| + /*************************************************************************/
|
| + /*************************************************************************/
|
| + /*************************************************************************/
|
| + /**** ****/
|
| + /**** ****/
|
| + /**** R E N D E R E R S ****/
|
| + /**** ****/
|
| + /**** ****/
|
| + /*************************************************************************/
|
| + /*************************************************************************/
|
| + /*************************************************************************/
|
| +
|
| + /* lookup a renderer by glyph format in the library's list */
|
| + FT_BASE_DEF( FT_Renderer )
|
| + FT_Lookup_Renderer( FT_Library library,
|
| + FT_Glyph_Format format,
|
| + FT_ListNode* node )
|
| + {
|
| + FT_ListNode cur;
|
| + FT_Renderer result = NULL;
|
| +
|
| +
|
| + if ( !library )
|
| + goto Exit;
|
| +
|
| + cur = library->renderers.head;
|
| +
|
| + if ( node )
|
| + {
|
| + if ( *node )
|
| + cur = (*node)->next;
|
| + *node = NULL;
|
| + }
|
| +
|
| + while ( cur )
|
| + {
|
| + FT_Renderer renderer = FT_RENDERER( cur->data );
|
| +
|
| +
|
| + if ( renderer->glyph_format == format )
|
| + {
|
| + if ( node )
|
| + *node = cur;
|
| +
|
| + result = renderer;
|
| + break;
|
| + }
|
| + cur = cur->next;
|
| + }
|
| +
|
| + Exit:
|
| + return result;
|
| + }
|
| +
|
| +
|
| + static FT_Renderer
|
| + ft_lookup_glyph_renderer( FT_GlyphSlot slot )
|
| + {
|
| + FT_Face face = slot->face;
|
| + FT_Library library = FT_FACE_LIBRARY( face );
|
| + FT_Renderer result = library->cur_renderer;
|
| +
|
| +
|
| + if ( !result || result->glyph_format != slot->format )
|
| + result = FT_Lookup_Renderer( library, slot->format, 0 );
|
| +
|
| + return result;
|
| + }
|
| +
|
| +
|
| + static void
|
| + ft_set_current_renderer( FT_Library library )
|
| + {
|
| + FT_Renderer renderer;
|
| +
|
| +
|
| + renderer = FT_Lookup_Renderer( library, FT_GLYPH_FORMAT_OUTLINE, 0 );
|
| + library->cur_renderer = renderer;
|
| + }
|
| +
|
| +
|
| + static FT_Error
|
| + ft_add_renderer( FT_Module module )
|
| + {
|
| + FT_Library library = module->library;
|
| + FT_Memory memory = library->memory;
|
| + FT_Error error;
|
| + FT_ListNode node = NULL;
|
| +
|
| +
|
| + if ( FT_NEW( node ) )
|
| + goto Exit;
|
| +
|
| + {
|
| + FT_Renderer render = FT_RENDERER( module );
|
| + FT_Renderer_Class* clazz = (FT_Renderer_Class*)module->clazz;
|
| +
|
| +
|
| + render->clazz = clazz;
|
| + render->glyph_format = clazz->glyph_format;
|
| +
|
| + /* allocate raster object if needed */
|
| + if ( clazz->glyph_format == FT_GLYPH_FORMAT_OUTLINE &&
|
| + clazz->raster_class->raster_new )
|
| + {
|
| + error = clazz->raster_class->raster_new( memory, &render->raster );
|
| + if ( error )
|
| + goto Fail;
|
| +
|
| + render->raster_render = clazz->raster_class->raster_render;
|
| + render->render = clazz->render_glyph;
|
| + }
|
| +
|
| + /* add to list */
|
| + node->data = module;
|
| + FT_List_Add( &library->renderers, node );
|
| +
|
| + ft_set_current_renderer( library );
|
| + }
|
| +
|
| + Fail:
|
| + if ( error )
|
| + FT_FREE( node );
|
| +
|
| + Exit:
|
| + return error;
|
| + }
|
| +
|
| +
|
| + static void
|
| + ft_remove_renderer( FT_Module module )
|
| + {
|
| + FT_Library library;
|
| + FT_Memory memory;
|
| + FT_ListNode node;
|
| +
|
| +
|
| + library = module->library;
|
| + if ( !library )
|
| + return;
|
| +
|
| + memory = library->memory;
|
| +
|
| + node = FT_List_Find( &library->renderers, module );
|
| + if ( node )
|
| + {
|
| + FT_Renderer render = FT_RENDERER( module );
|
| +
|
| +
|
| + /* release raster object, if any */
|
| + if ( render->clazz->glyph_format == FT_GLYPH_FORMAT_OUTLINE &&
|
| + render->raster )
|
| + render->clazz->raster_class->raster_done( render->raster );
|
| +
|
| + /* remove from list */
|
| + FT_List_Remove( &library->renderers, node );
|
| + FT_FREE( node );
|
| +
|
| + ft_set_current_renderer( library );
|
| + }
|
| + }
|
| +
|
| +
|
| + /* documentation is in ftrender.h */
|
| +
|
| + FT_EXPORT_DEF( FT_Renderer )
|
| + FT_Get_Renderer( FT_Library library,
|
| + FT_Glyph_Format format )
|
| + {
|
| + /* test for valid `library' delayed to `FT_Lookup_Renderer' */
|
| +
|
| + return FT_Lookup_Renderer( library, format, 0 );
|
| + }
|
| +
|
| +
|
| + /* documentation is in ftrender.h */
|
| +
|
| + FT_EXPORT_DEF( FT_Error )
|
| + FT_Set_Renderer( FT_Library library,
|
| + FT_Renderer renderer,
|
| + FT_UInt num_params,
|
| + FT_Parameter* parameters )
|
| + {
|
| + FT_ListNode node;
|
| + FT_Error error = FT_Err_Ok;
|
| +
|
| + FT_Renderer_SetModeFunc set_mode;
|
| +
|
| +
|
| + if ( !library )
|
| + {
|
| + error = FT_THROW( Invalid_Library_Handle );
|
| + goto Exit;
|
| + }
|
| +
|
| + if ( !renderer )
|
| + {
|
| + error = FT_THROW( Invalid_Argument );
|
| + goto Exit;
|
| + }
|
| +
|
| + if ( num_params > 0 && !parameters )
|
| + {
|
| + error = FT_THROW( Invalid_Argument );
|
| + goto Exit;
|
| + }
|
| +
|
| + node = FT_List_Find( &library->renderers, renderer );
|
| + if ( !node )
|
| + {
|
| + error = FT_THROW( Invalid_Argument );
|
| + goto Exit;
|
| + }
|
| +
|
| + FT_List_Up( &library->renderers, node );
|
| +
|
| + if ( renderer->glyph_format == FT_GLYPH_FORMAT_OUTLINE )
|
| + library->cur_renderer = renderer;
|
| +
|
| + set_mode = renderer->clazz->set_mode;
|
| +
|
| + for ( ; num_params > 0; num_params-- )
|
| + {
|
| + error = set_mode( renderer, parameters->tag, parameters->data );
|
| + if ( error )
|
| + break;
|
| + parameters++;
|
| + }
|
| +
|
| + Exit:
|
| + return error;
|
| + }
|
| +
|
| +
|
| + FT_BASE_DEF( FT_Error )
|
| + FT_Render_Glyph_Internal( FT_Library library,
|
| + FT_GlyphSlot slot,
|
| + FT_Render_Mode render_mode )
|
| + {
|
| + FT_Error error = FT_Err_Ok;
|
| + FT_Renderer renderer;
|
| +
|
| +
|
| + /* if it is already a bitmap, no need to do anything */
|
| + switch ( slot->format )
|
| + {
|
| + case FT_GLYPH_FORMAT_BITMAP: /* already a bitmap, don't do anything */
|
| + break;
|
| +
|
| + default:
|
| + {
|
| + FT_ListNode node = NULL;
|
| +
|
| +
|
| + /* small shortcut for the very common case */
|
| + if ( slot->format == FT_GLYPH_FORMAT_OUTLINE )
|
| + {
|
| + renderer = library->cur_renderer;
|
| + node = library->renderers.head;
|
| + }
|
| + else
|
| + renderer = FT_Lookup_Renderer( library, slot->format, &node );
|
| +
|
| + error = FT_ERR( Unimplemented_Feature );
|
| + while ( renderer )
|
| + {
|
| + error = renderer->render( renderer, slot, render_mode, NULL );
|
| + if ( !error ||
|
| + FT_ERR_NEQ( error, Cannot_Render_Glyph ) )
|
| + break;
|
| +
|
| + /* FT_Err_Cannot_Render_Glyph is returned if the render mode */
|
| + /* is unsupported by the current renderer for this glyph image */
|
| + /* format. */
|
| +
|
| + /* now, look for another renderer that supports the same */
|
| + /* format. */
|
| + renderer = FT_Lookup_Renderer( library, slot->format, &node );
|
| + }
|
| + }
|
| + }
|
| +
|
| +#ifdef FT_DEBUG_LEVEL_TRACE
|
| +
|
| +#undef FT_COMPONENT
|
| +#define FT_COMPONENT trace_bitmap
|
| +
|
| + /*
|
| + * Computing the MD5 checksum is expensive, unnecessarily distorting a
|
| + * possible profiling of FreeType if compiled with tracing support. For
|
| + * this reason, we execute the following code only if explicitly
|
| + * requested.
|
| + */
|
| +
|
| + /* we use FT_TRACE3 in this block */
|
| + if ( ft_trace_levels[trace_bitmap] >= 3 )
|
| + {
|
| + /* we convert to a single bitmap format for computing the checksum */
|
| + if ( !error )
|
| + {
|
| + FT_Bitmap bitmap;
|
| + FT_Error err;
|
| +
|
| +
|
| + FT_Bitmap_Init( &bitmap );
|
| +
|
| + /* this also converts the bitmap flow to `down' (i.e., pitch > 0) */
|
| + err = FT_Bitmap_Convert( library, &slot->bitmap, &bitmap, 1 );
|
| + if ( !err )
|
| + {
|
| + MD5_CTX ctx;
|
| + unsigned char md5[16];
|
| + int i;
|
| + unsigned int rows = bitmap.rows;
|
| + unsigned int pitch = (unsigned int)bitmap.pitch;
|
| +
|
| +
|
| + MD5_Init( &ctx );
|
| + MD5_Update( &ctx, bitmap.buffer, rows * pitch );
|
| + MD5_Final( md5, &ctx );
|
| +
|
| + FT_TRACE3(( "MD5 checksum for %dx%d bitmap:\n"
|
| + " ",
|
| + rows, pitch ));
|
| + for ( i = 0; i < 16; i++ )
|
| + FT_TRACE3(( "%02X", md5[i] ));
|
| + FT_TRACE3(( "\n" ));
|
| + }
|
| +
|
| + FT_Bitmap_Done( library, &bitmap );
|
| + }
|
| + }
|
| +
|
| +#undef FT_COMPONENT
|
| +#define FT_COMPONENT trace_objs
|
| +
|
| +#endif /* FT_DEBUG_LEVEL_TRACE */
|
| +
|
| + return error;
|
| + }
|
| +
|
| +
|
| + /* documentation is in freetype.h */
|
| +
|
| + FT_EXPORT_DEF( FT_Error )
|
| + FT_Render_Glyph( FT_GlyphSlot slot,
|
| + FT_Render_Mode render_mode )
|
| + {
|
| + FT_Library library;
|
| +
|
| +
|
| + if ( !slot || !slot->face )
|
| + return FT_THROW( Invalid_Argument );
|
| +
|
| + library = FT_FACE_LIBRARY( slot->face );
|
| +
|
| + return FT_Render_Glyph_Internal( library, slot, render_mode );
|
| + }
|
| +
|
| +
|
| + /*************************************************************************/
|
| + /*************************************************************************/
|
| + /*************************************************************************/
|
| + /**** ****/
|
| + /**** ****/
|
| + /**** M O D U L E S ****/
|
| + /**** ****/
|
| + /**** ****/
|
| + /*************************************************************************/
|
| + /*************************************************************************/
|
| + /*************************************************************************/
|
| +
|
| +
|
| + /*************************************************************************/
|
| + /* */
|
| + /* <Function> */
|
| + /* Destroy_Module */
|
| + /* */
|
| + /* <Description> */
|
| + /* Destroys a given module object. For drivers, this also destroys */
|
| + /* all child faces. */
|
| + /* */
|
| + /* <InOut> */
|
| + /* module :: A handle to the target driver object. */
|
| + /* */
|
| + /* <Note> */
|
| + /* The driver _must_ be LOCKED! */
|
| + /* */
|
| + static void
|
| + Destroy_Module( FT_Module module )
|
| + {
|
| + FT_Memory memory = module->memory;
|
| + FT_Module_Class* clazz = module->clazz;
|
| + FT_Library library = module->library;
|
| +
|
| +
|
| + if ( library && library->auto_hinter == module )
|
| + library->auto_hinter = NULL;
|
| +
|
| + /* if the module is a renderer */
|
| + if ( FT_MODULE_IS_RENDERER( module ) )
|
| + ft_remove_renderer( module );
|
| +
|
| + /* if the module is a font driver, add some steps */
|
| + if ( FT_MODULE_IS_DRIVER( module ) )
|
| + Destroy_Driver( FT_DRIVER( module ) );
|
| +
|
| + /* finalize the module object */
|
| + if ( clazz->module_done )
|
| + clazz->module_done( module );
|
| +
|
| + /* discard it */
|
| + FT_FREE( module );
|
| + }
|
| +
|
| +
|
| + /* documentation is in ftmodapi.h */
|
| +
|
| + FT_EXPORT_DEF( FT_Error )
|
| + FT_Add_Module( FT_Library library,
|
| + const FT_Module_Class* clazz )
|
| + {
|
| + FT_Error error;
|
| + FT_Memory memory;
|
| + FT_Module module;
|
| + FT_UInt nn;
|
| +
|
| +
|
| +#define FREETYPE_VER_FIXED ( ( (FT_Long)FREETYPE_MAJOR << 16 ) | \
|
| + FREETYPE_MINOR )
|
| +
|
| + if ( !library )
|
| + return FT_THROW( Invalid_Library_Handle );
|
| +
|
| + if ( !clazz )
|
| + return FT_THROW( Invalid_Argument );
|
| +
|
| + /* check freetype version */
|
| + if ( clazz->module_requires > FREETYPE_VER_FIXED )
|
| + return FT_THROW( Invalid_Version );
|
| +
|
| + /* look for a module with the same name in the library's table */
|
| + for ( nn = 0; nn < library->num_modules; nn++ )
|
| + {
|
| + module = library->modules[nn];
|
| + if ( ft_strcmp( module->clazz->module_name, clazz->module_name ) == 0 )
|
| + {
|
| + /* this installed module has the same name, compare their versions */
|
| + if ( clazz->module_version <= module->clazz->module_version )
|
| + return FT_THROW( Lower_Module_Version );
|
| +
|
| + /* remove the module from our list, then exit the loop to replace */
|
| + /* it by our new version.. */
|
| + FT_Remove_Module( library, module );
|
| + break;
|
| + }
|
| + }
|
| +
|
| + memory = library->memory;
|
| + error = FT_Err_Ok;
|
| +
|
| + if ( library->num_modules >= FT_MAX_MODULES )
|
| + {
|
| + error = FT_THROW( Too_Many_Drivers );
|
| + goto Exit;
|
| + }
|
| +
|
| + /* allocate module object */
|
| + if ( FT_ALLOC( module, clazz->module_size ) )
|
| + goto Exit;
|
| +
|
| + /* base initialization */
|
| + module->library = library;
|
| + module->memory = memory;
|
| + module->clazz = (FT_Module_Class*)clazz;
|
| +
|
| + /* check whether the module is a renderer - this must be performed */
|
| + /* before the normal module initialization */
|
| + if ( FT_MODULE_IS_RENDERER( module ) )
|
| + {
|
| + /* add to the renderers list */
|
| + error = ft_add_renderer( module );
|
| + if ( error )
|
| + goto Fail;
|
| + }
|
| +
|
| + /* is the module a auto-hinter? */
|
| + if ( FT_MODULE_IS_HINTER( module ) )
|
| + library->auto_hinter = module;
|
| +
|
| + /* if the module is a font driver */
|
| + if ( FT_MODULE_IS_DRIVER( module ) )
|
| + {
|
| + FT_Driver driver = FT_DRIVER( module );
|
| +
|
| +
|
| + driver->clazz = (FT_Driver_Class)module->clazz;
|
| + }
|
| +
|
| + if ( clazz->module_init )
|
| + {
|
| + error = clazz->module_init( module );
|
| + if ( error )
|
| + goto Fail;
|
| + }
|
| +
|
| + /* add module to the library's table */
|
| + library->modules[library->num_modules++] = module;
|
| +
|
| + Exit:
|
| + return error;
|
| +
|
| + Fail:
|
| + if ( FT_MODULE_IS_RENDERER( module ) )
|
| + {
|
| + FT_Renderer renderer = FT_RENDERER( module );
|
| +
|
| +
|
| + if ( renderer->clazz &&
|
| + renderer->clazz->glyph_format == FT_GLYPH_FORMAT_OUTLINE &&
|
| + renderer->raster )
|
| + renderer->clazz->raster_class->raster_done( renderer->raster );
|
| + }
|
| +
|
| + FT_FREE( module );
|
| + goto Exit;
|
| + }
|
| +
|
| +
|
| + /* documentation is in ftmodapi.h */
|
| +
|
| + FT_EXPORT_DEF( FT_Module )
|
| + FT_Get_Module( FT_Library library,
|
| + const char* module_name )
|
| + {
|
| + FT_Module result = NULL;
|
| + FT_Module* cur;
|
| + FT_Module* limit;
|
| +
|
| +
|
| + if ( !library || !module_name )
|
| + return result;
|
| +
|
| + cur = library->modules;
|
| + limit = cur + library->num_modules;
|
| +
|
| + for ( ; cur < limit; cur++ )
|
| + if ( ft_strcmp( cur[0]->clazz->module_name, module_name ) == 0 )
|
| + {
|
| + result = cur[0];
|
| + break;
|
| + }
|
| +
|
| + return result;
|
| + }
|
| +
|
| +
|
| + /* documentation is in ftobjs.h */
|
| +
|
| + FT_BASE_DEF( const void* )
|
| + FT_Get_Module_Interface( FT_Library library,
|
| + const char* mod_name )
|
| + {
|
| + FT_Module module;
|
| +
|
| +
|
| + /* test for valid `library' delayed to FT_Get_Module() */
|
| +
|
| + module = FT_Get_Module( library, mod_name );
|
| +
|
| + return module ? module->clazz->module_interface : 0;
|
| + }
|
| +
|
| +
|
| + FT_BASE_DEF( FT_Pointer )
|
| + ft_module_get_service( FT_Module module,
|
| + const char* service_id )
|
| + {
|
| + FT_Pointer result = NULL;
|
| +
|
| +
|
| + if ( module )
|
| + {
|
| + FT_ASSERT( module->clazz && module->clazz->get_interface );
|
| +
|
| + /* first, look for the service in the module */
|
| + if ( module->clazz->get_interface )
|
| + result = module->clazz->get_interface( module, service_id );
|
| +
|
| + if ( result == NULL )
|
| + {
|
| + /* we didn't find it, look in all other modules then */
|
| + FT_Library library = module->library;
|
| + FT_Module* cur = library->modules;
|
| + FT_Module* limit = cur + library->num_modules;
|
| +
|
| +
|
| + for ( ; cur < limit; cur++ )
|
| + {
|
| + if ( cur[0] != module )
|
| + {
|
| + FT_ASSERT( cur[0]->clazz );
|
| +
|
| + if ( cur[0]->clazz->get_interface )
|
| + {
|
| + result = cur[0]->clazz->get_interface( cur[0], service_id );
|
| + if ( result != NULL )
|
| + break;
|
| + }
|
| + }
|
| + }
|
| + }
|
| + }
|
| +
|
| + return result;
|
| + }
|
| +
|
| +
|
| + /* documentation is in ftmodapi.h */
|
| +
|
| + FT_EXPORT_DEF( FT_Error )
|
| + FT_Remove_Module( FT_Library library,
|
| + FT_Module module )
|
| + {
|
| + /* try to find the module from the table, then remove it from there */
|
| +
|
| + if ( !library )
|
| + return FT_THROW( Invalid_Library_Handle );
|
| +
|
| + if ( module )
|
| + {
|
| + FT_Module* cur = library->modules;
|
| + FT_Module* limit = cur + library->num_modules;
|
| +
|
| +
|
| + for ( ; cur < limit; cur++ )
|
| + {
|
| + if ( cur[0] == module )
|
| + {
|
| + /* remove it from the table */
|
| + library->num_modules--;
|
| + limit--;
|
| + while ( cur < limit )
|
| + {
|
| + cur[0] = cur[1];
|
| + cur++;
|
| + }
|
| + limit[0] = NULL;
|
| +
|
| + /* destroy the module */
|
| + Destroy_Module( module );
|
| +
|
| + return FT_Err_Ok;
|
| + }
|
| + }
|
| + }
|
| + return FT_THROW( Invalid_Driver_Handle );
|
| + }
|
| +
|
| +
|
| + static FT_Error
|
| + ft_property_do( FT_Library library,
|
| + const FT_String* module_name,
|
| + const FT_String* property_name,
|
| + void* value,
|
| + FT_Bool set )
|
| + {
|
| + FT_Module* cur;
|
| + FT_Module* limit;
|
| + FT_Module_Interface interface;
|
| +
|
| + FT_Service_Properties service;
|
| +
|
| +#ifdef FT_DEBUG_LEVEL_ERROR
|
| + const FT_String* set_name = "FT_Property_Set";
|
| + const FT_String* get_name = "FT_Property_Get";
|
| + const FT_String* func_name = set ? set_name : get_name;
|
| +#endif
|
| +
|
| + FT_Bool missing_func;
|
| +
|
| +
|
| + if ( !library )
|
| + return FT_THROW( Invalid_Library_Handle );
|
| +
|
| + if ( !module_name || !property_name || !value )
|
| + return FT_THROW( Invalid_Argument );
|
| +
|
| + cur = library->modules;
|
| + limit = cur + library->num_modules;
|
| +
|
| + /* search module */
|
| + for ( ; cur < limit; cur++ )
|
| + if ( !ft_strcmp( cur[0]->clazz->module_name, module_name ) )
|
| + break;
|
| +
|
| + if ( cur == limit )
|
| + {
|
| + FT_ERROR(( "%s: can't find module `%s'\n",
|
| + func_name, module_name ));
|
| + return FT_THROW( Missing_Module );
|
| + }
|
| +
|
| + /* check whether we have a service interface */
|
| + if ( !cur[0]->clazz->get_interface )
|
| + {
|
| + FT_ERROR(( "%s: module `%s' doesn't support properties\n",
|
| + func_name, module_name ));
|
| + return FT_THROW( Unimplemented_Feature );
|
| + }
|
| +
|
| + /* search property service */
|
| + interface = cur[0]->clazz->get_interface( cur[0],
|
| + FT_SERVICE_ID_PROPERTIES );
|
| + if ( !interface )
|
| + {
|
| + FT_ERROR(( "%s: module `%s' doesn't support properties\n",
|
| + func_name, module_name ));
|
| + return FT_THROW( Unimplemented_Feature );
|
| + }
|
| +
|
| + service = (FT_Service_Properties)interface;
|
| +
|
| + if ( set )
|
| + missing_func = (FT_Bool)( !service->set_property );
|
| + else
|
| + missing_func = (FT_Bool)( !service->get_property );
|
| +
|
| + if ( missing_func )
|
| + {
|
| + FT_ERROR(( "%s: property service of module `%s' is broken\n",
|
| + func_name, module_name ));
|
| + return FT_THROW( Unimplemented_Feature );
|
| + }
|
| +
|
| + return set ? service->set_property( cur[0], property_name, value )
|
| + : service->get_property( cur[0], property_name, value );
|
| + }
|
| +
|
| +
|
| + /* documentation is in ftmodapi.h */
|
| +
|
| + FT_EXPORT_DEF( FT_Error )
|
| + FT_Property_Set( FT_Library library,
|
| + const FT_String* module_name,
|
| + const FT_String* property_name,
|
| + const void* value )
|
| + {
|
| + return ft_property_do( library,
|
| + module_name,
|
| + property_name,
|
| + (void*)value,
|
| + TRUE );
|
| + }
|
| +
|
| +
|
| + /* documentation is in ftmodapi.h */
|
| +
|
| + FT_EXPORT_DEF( FT_Error )
|
| + FT_Property_Get( FT_Library library,
|
| + const FT_String* module_name,
|
| + const FT_String* property_name,
|
| + void* value )
|
| + {
|
| + return ft_property_do( library,
|
| + module_name,
|
| + property_name,
|
| + value,
|
| + FALSE );
|
| + }
|
| +
|
| +
|
| + /*************************************************************************/
|
| + /*************************************************************************/
|
| + /*************************************************************************/
|
| + /**** ****/
|
| + /**** ****/
|
| + /**** L I B R A R Y ****/
|
| + /**** ****/
|
| + /**** ****/
|
| + /*************************************************************************/
|
| + /*************************************************************************/
|
| + /*************************************************************************/
|
| +
|
| +
|
| + /* documentation is in ftmodapi.h */
|
| +
|
| + FT_EXPORT_DEF( FT_Error )
|
| + FT_Reference_Library( FT_Library library )
|
| + {
|
| + if ( !library )
|
| + return FT_THROW( Invalid_Library_Handle );
|
| +
|
| + library->refcount++;
|
| +
|
| + return FT_Err_Ok;
|
| + }
|
| +
|
| +
|
| + /* documentation is in ftmodapi.h */
|
| +
|
| + FT_EXPORT_DEF( FT_Error )
|
| + FT_New_Library( FT_Memory memory,
|
| + FT_Library *alibrary )
|
| + {
|
| + FT_Library library = NULL;
|
| + FT_Error error;
|
| +
|
| +
|
| + if ( !memory || !alibrary )
|
| + return FT_THROW( Invalid_Argument );
|
| +
|
| +#ifdef FT_DEBUG_LEVEL_ERROR
|
| + /* init debugging support */
|
| + ft_debug_init();
|
| +#endif
|
| +
|
| + /* first of all, allocate the library object */
|
| + if ( FT_NEW( library ) )
|
| + return error;
|
| +
|
| + library->memory = memory;
|
| +
|
| +#ifdef FT_CONFIG_OPTION_PIC
|
| + /* initialize position independent code containers */
|
| + error = ft_pic_container_init( library );
|
| + if ( error )
|
| + goto Fail;
|
| +#endif
|
| +
|
| + /* we don't use raster_pool anymore. */
|
| + library->raster_pool_size = 0;
|
| + library->raster_pool = NULL;
|
| +
|
| + library->version_major = FREETYPE_MAJOR;
|
| + library->version_minor = FREETYPE_MINOR;
|
| + library->version_patch = FREETYPE_PATCH;
|
| +
|
| + library->refcount = 1;
|
| +
|
| + /* That's ok now */
|
| + *alibrary = library;
|
| +
|
| + return FT_Err_Ok;
|
| +
|
| +#ifdef FT_CONFIG_OPTION_PIC
|
| + Fail:
|
| + ft_pic_container_destroy( library );
|
| +#endif
|
| + FT_FREE( library );
|
| + return error;
|
| + }
|
| +
|
| +
|
| + /* documentation is in freetype.h */
|
| +
|
| + FT_EXPORT_DEF( void )
|
| + FT_Library_Version( FT_Library library,
|
| + FT_Int *amajor,
|
| + FT_Int *aminor,
|
| + FT_Int *apatch )
|
| + {
|
| + FT_Int major = 0;
|
| + FT_Int minor = 0;
|
| + FT_Int patch = 0;
|
| +
|
| +
|
| + if ( library )
|
| + {
|
| + major = library->version_major;
|
| + minor = library->version_minor;
|
| + patch = library->version_patch;
|
| + }
|
| +
|
| + if ( amajor )
|
| + *amajor = major;
|
| +
|
| + if ( aminor )
|
| + *aminor = minor;
|
| +
|
| + if ( apatch )
|
| + *apatch = patch;
|
| + }
|
| +
|
| +
|
| + /* documentation is in ftmodapi.h */
|
| +
|
| + FT_EXPORT_DEF( FT_Error )
|
| + FT_Done_Library( FT_Library library )
|
| + {
|
| + FT_Memory memory;
|
| +
|
| +
|
| + if ( !library )
|
| + return FT_THROW( Invalid_Library_Handle );
|
| +
|
| + library->refcount--;
|
| + if ( library->refcount > 0 )
|
| + goto Exit;
|
| +
|
| + memory = library->memory;
|
| +
|
| + /*
|
| + * Close all faces in the library. If we don't do this, we can have
|
| + * some subtle memory leaks.
|
| + *
|
| + * Example:
|
| + *
|
| + * - the cff font driver uses the pshinter module in cff_size_done
|
| + * - if the pshinter module is destroyed before the cff font driver,
|
| + * opened FT_Face objects managed by the driver are not properly
|
| + * destroyed, resulting in a memory leak
|
| + *
|
| + * Some faces are dependent on other faces, like Type42 faces that
|
| + * depend on TrueType faces synthesized internally.
|
| + *
|
| + * The order of drivers should be specified in driver_name[].
|
| + */
|
| + {
|
| + FT_UInt m, n;
|
| + const char* driver_name[] = { "type42", NULL };
|
| +
|
| +
|
| + for ( m = 0;
|
| + m < sizeof ( driver_name ) / sizeof ( driver_name[0] );
|
| + m++ )
|
| + {
|
| + for ( n = 0; n < library->num_modules; n++ )
|
| + {
|
| + FT_Module module = library->modules[n];
|
| + const char* module_name = module->clazz->module_name;
|
| + FT_List faces;
|
| +
|
| +
|
| + if ( driver_name[m] &&
|
| + ft_strcmp( module_name, driver_name[m] ) != 0 )
|
| + continue;
|
| +
|
| + if ( ( module->clazz->module_flags & FT_MODULE_FONT_DRIVER ) == 0 )
|
| + continue;
|
| +
|
| + FT_TRACE7(( "FT_Done_Library: close faces for %s\n", module_name ));
|
| +
|
| + faces = &FT_DRIVER( module )->faces_list;
|
| + while ( faces->head )
|
| + {
|
| + FT_Done_Face( FT_FACE( faces->head->data ) );
|
| + if ( faces->head )
|
| + FT_TRACE0(( "FT_Done_Library: failed to free some faces\n" ));
|
| + }
|
| + }
|
| + }
|
| + }
|
| +
|
| + /* Close all other modules in the library */
|
| +#if 1
|
| + /* XXX Modules are removed in the reversed order so that */
|
| + /* type42 module is removed before truetype module. This */
|
| + /* avoids double free in some occasions. It is a hack. */
|
| + while ( library->num_modules > 0 )
|
| + FT_Remove_Module( library,
|
| + library->modules[library->num_modules - 1] );
|
| +#else
|
| + {
|
| + FT_UInt n;
|
| +
|
| +
|
| + for ( n = 0; n < library->num_modules; n++ )
|
| + {
|
| + FT_Module module = library->modules[n];
|
| +
|
| +
|
| + if ( module )
|
| + {
|
| + Destroy_Module( module );
|
| + library->modules[n] = NULL;
|
| + }
|
| + }
|
| + }
|
| +#endif
|
| +
|
| +#ifdef FT_CONFIG_OPTION_PIC
|
| + /* Destroy pic container contents */
|
| + ft_pic_container_destroy( library );
|
| +#endif
|
| +
|
| + FT_FREE( library );
|
| +
|
| + Exit:
|
| + return FT_Err_Ok;
|
| + }
|
| +
|
| +
|
| + /* documentation is in ftmodapi.h */
|
| +
|
| + FT_EXPORT_DEF( void )
|
| + FT_Set_Debug_Hook( FT_Library library,
|
| + FT_UInt hook_index,
|
| + FT_DebugHook_Func debug_hook )
|
| + {
|
| + if ( library && debug_hook &&
|
| + hook_index <
|
| + ( sizeof ( library->debug_hooks ) / sizeof ( void* ) ) )
|
| + library->debug_hooks[hook_index] = debug_hook;
|
| + }
|
| +
|
| +
|
| + /* documentation is in ftmodapi.h */
|
| +
|
| + FT_EXPORT_DEF( FT_TrueTypeEngineType )
|
| + FT_Get_TrueType_Engine_Type( FT_Library library )
|
| + {
|
| + FT_TrueTypeEngineType result = FT_TRUETYPE_ENGINE_TYPE_NONE;
|
| +
|
| +
|
| + if ( library )
|
| + {
|
| + FT_Module module = FT_Get_Module( library, "truetype" );
|
| +
|
| +
|
| + if ( module )
|
| + {
|
| + FT_Service_TrueTypeEngine service;
|
| +
|
| +
|
| + service = (FT_Service_TrueTypeEngine)
|
| + ft_module_get_service( module,
|
| + FT_SERVICE_ID_TRUETYPE_ENGINE );
|
| + if ( service )
|
| + result = service->engine_type;
|
| + }
|
| + }
|
| +
|
| + return result;
|
| + }
|
| +
|
| +
|
| + /* documentation is in freetype.h */
|
| +
|
| + FT_EXPORT_DEF( FT_Error )
|
| + FT_Get_SubGlyph_Info( FT_GlyphSlot glyph,
|
| + FT_UInt sub_index,
|
| + FT_Int *p_index,
|
| + FT_UInt *p_flags,
|
| + FT_Int *p_arg1,
|
| + FT_Int *p_arg2,
|
| + FT_Matrix *p_transform )
|
| + {
|
| + FT_Error error = FT_ERR( Invalid_Argument );
|
| +
|
| +
|
| + if ( glyph &&
|
| + glyph->subglyphs &&
|
| + glyph->format == FT_GLYPH_FORMAT_COMPOSITE &&
|
| + sub_index < glyph->num_subglyphs )
|
| + {
|
| + FT_SubGlyph subg = glyph->subglyphs + sub_index;
|
| +
|
| +
|
| + *p_index = subg->index;
|
| + *p_flags = subg->flags;
|
| + *p_arg1 = subg->arg1;
|
| + *p_arg2 = subg->arg2;
|
| + *p_transform = subg->transform;
|
| +
|
| + error = FT_Err_Ok;
|
| + }
|
| +
|
| + return error;
|
| + }
|
| +
|
| +
|
| +/* END */
|
|
|
Chromium Code Reviews
Issue 1524973002:
Update freetype sources (2.6.2) in third party. (Closed)
Base URL: https://github.com/domokit/mojo.git@master