Index: core/src/fxge/fx_freetype/fxft2.5.01/src/base/ftobjs.c |
diff --git a/core/src/fxge/fx_freetype/fxft2.5.01/src/base/ftobjs.c b/core/src/fxge/fx_freetype/fxft2.5.01/src/base/ftobjs.c |
deleted file mode 100644 |
index 32c9ff76c4bfe519f906aae250fff0443e1bfc2d..0000000000000000000000000000000000000000 |
--- a/core/src/fxge/fx_freetype/fxft2.5.01/src/base/ftobjs.c |
+++ /dev/null |
@@ -1,4867 +0,0 @@ |
-/***************************************************************************/ |
-/* */ |
-/* ftobjs.c */ |
-/* */ |
-/* The FreeType private base classes (body). */ |
-/* */ |
-/* Copyright 1996-2013 by */ |
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */ |
-/* */ |
-/* This file is part of the FreeType project, and may only be used, */ |
-/* modified, and distributed under the terms of the FreeType project */ |
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ |
-/* this file you indicate that you have read the license and */ |
-/* understand and accept it fully. */ |
-/* */ |
-/***************************************************************************/ |
- |
- |
-#include "../../include/ft2build.h" |
-#include "../../include/freetype/ftlist.h" |
-#include "../../include/freetype/ftoutln.h" |
-#include "../../include/freetype/internal/ftvalid.h" |
-#include "../../include/freetype/internal/ftobjs.h" |
-#include "../../include/freetype/internal/ftdebug.h" |
-#include "../../include/freetype/internal/ftrfork.h" |
-#include "../../include/freetype/internal/ftstream.h" |
-#include "../../include/freetype/internal/sfnt.h" /* for SFNT_Load_Table_Func */ |
-#include "../../include/freetype/tttables.h" |
-#include "../../include/freetype/tttags.h" |
-#include "../../include/freetype/ttnameid.h" |
- |
-#include "../../include/freetype/internal/services/svprop.h" |
-#include "../../include/freetype/internal/services/svsfnt.h" |
-#include "../../include/freetype/internal/services/svpostnm.h" |
-#include "../../include/freetype/internal/services/svgldict.h" |
-#include "../../include/freetype/internal/services/svttcmap.h" |
-#include "../../include/freetype/internal/services/svkern.h" |
-#include "../../include/freetype/internal/services/svtteng.h" |
- |
-#ifdef FT_CONFIG_OPTION_MAC_FONTS |
-#include "ftbase.h" |
-#endif |
- |
- |
-#ifdef FT_DEBUG_LEVEL_TRACE |
- |
-#include "../../include/freetype/ftbitmap.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 */ |
-#define free md5_free /* suppress a shadow warning */ |
-#include "md5.c" |
-#undef free |
- |
-#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 = 0; |
- |
- 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, |
- 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 = 0; |
- slot->control_data = 0; |
- slot->control_len = 0; |
- slot->other = 0; |
- 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 = 0; |
- } |
- |
- 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 || !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 = 0; |
- |
- |
- 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 */ |
- if ( mode == FT_RENDER_MODE_LIGHT || |
- face->internal->ignore_unpatented_hinter || |
- ( FT_IS_SFNT( face ) && |
- ttface->num_locations && |
- ttface->max_profile.maxSizeOfInstructions == 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 = 0; |
- |
- /* 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 = 0; |
- |
- /* 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 ); |
- |
- /* check whether we need to drop the driver's glyph loader */ |
- if ( FT_DRIVER_USES_OUTLINES( driver ) ) |
- FT_GlyphLoader_Done( driver->glyph_loader ); |
- } |
- |
- |
- /*************************************************************************/ |
- /* */ |
- /* <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 ) ) |
- { |
-#ifdef FT_MAX_CHARMAP_CACHEABLE |
- if ( cur - first > FT_MAX_CHARMAP_CACHEABLE ) |
- { |
- FT_ERROR(( "find_unicode_charmap: UCS-4 cmap is found " |
- "at too late position (%d)\n", cur - first )); |
- continue; |
- } |
-#endif |
- 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 ) |
- { |
-#ifdef FT_MAX_CHARMAP_CACHEABLE |
- if ( cur - first > FT_MAX_CHARMAP_CACHEABLE ) |
- { |
- FT_ERROR(( "find_unicode_charmap: UCS-2 cmap is found " |
- "at too late position (%d)\n", cur - first )); |
- continue; |
- } |
-#endif |
- 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 ) |
- { |
-#ifdef FT_MAX_CHARMAP_CACHEABLE |
- if ( cur - first > FT_MAX_CHARMAP_CACHEABLE ) |
- { |
- FT_ERROR(( "find_unicode_charmap: UVS cmap is found " |
- "at too late position (%d)\n", cur - first )); |
- continue; |
- } |
-#endif |
- 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 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 = 0; |
- FT_Error error, error2; |
- FT_Face_Internal internal = NULL; |
- |
- |
- 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 = stream; |
- |
- if ( FT_NEW( internal ) ) |
- goto Fail; |
- |
- face->internal = internal; |
- |
-#ifdef FT_CONFIG_OPTION_INCREMENTAL |
- { |
- int i; |
- |
- |
- face->internal->incremental_interface = 0; |
- 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( stream, |
- face, |
- (FT_Int)face_index, |
- num_params, |
- params ); |
- 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 = 0; |
- } |
- |
- 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 = 0; |
- stream->close = 0; |
- } |
- |
- |
- /* 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 = 0; |
- 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, 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 = 0; |
-#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_Long pos; |
- FT_Bool is_sfnt_cid; |
- FT_Byte* sfnt_ps = NULL; |
- |
- FT_UNUSED( num_params ); |
- FT_UNUSED( params ); |
- |
- |
- pos = FT_Stream_Pos( stream ); |
- |
- 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 ) |
- 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_Long len; |
- FT_Long pfb_len, pfb_pos, pfb_lenpos; |
- FT_Long 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, offsets[i] ); |
- if ( error ) |
- goto Exit; |
- if ( FT_READ_LONG( temp ) ) |
- goto Exit; |
- pfb_len += temp + 6; |
- } |
- |
- 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, offsets[i] ); |
- if ( error ) |
- goto Exit2; |
- if ( FT_READ_LONG( rlen ) ) |
- goto Exit; |
- if ( FT_READ_USHORT( flags ) ) |
- goto Exit; |
- FT_TRACE3(( "POST fragment[%d]: offsets=0x%08x, rlen=0x%08x, flags=0x%04x\n", |
- i, offsets[i], rlen, flags )); |
- |
- /* postpone the check of rlen longer than buffer until FT_Stream_Read() */ |
- if ( ( flags >> 8 ) == 0 ) /* Comment, should not be loaded */ |
- 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 |
- { |
- 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; |
- |
- 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; |
- } |
- |
- error = FT_ERR( Cannot_Open_Resource ); |
- if ( pfb_pos > pfb_len || pfb_pos + rlen > pfb_len ) |
- goto Exit2; |
- |
- error = FT_Stream_Read( stream, (FT_Byte *)pfb_data + pfb_pos, rlen ); |
- if ( error ) |
- goto Exit2; |
- pfb_pos += rlen; |
- } |
- |
- 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: |
- 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 the 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_Long 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 = 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 ); |
- |
- 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, (FT_Long)rlen ) ) |
- return error; |
- error = FT_Stream_Read( stream, (FT_Byte *)sfnt_data, rlen ); |
- if ( error ) |
- goto Exit; |
- |
- is_cff = rlen > 4 && !ft_memcmp( sfnt_data, "OTTO", 4 ); |
- error = open_face_from_buffer( library, |
- sfnt_data, |
- 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; |
- |
- error = FT_Raccess_Get_DataOffsets( library, stream, |
- map_offset, rdara_pos, |
- TTAG_POST, |
- &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; |
- } |
- |
- error = FT_Raccess_Get_DataOffsets( library, stream, |
- map_offset, rdara_pos, |
- TTAG_sfnt, |
- &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 ) |
- 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 ); |
- int 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 = 0; |
- |
- |
- 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 |
- |
- FT_TRACE3(( "Try as dfont: %s ...", args->pathname )); |
- |
- 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 = 0; |
- |
- |
- if ( args->flags & FT_OPEN_PARAMS ) |
- { |
- num_params = args->num_params; |
- params = args->params; |
- } |
- |
- error = open_face( driver, 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 = 0; |
- |
- |
- driver = FT_DRIVER( cur[0] ); |
- |
- if ( args->flags & FT_OPEN_PARAMS ) |
- { |
- num_params = args->num_params; |
- params = args->params; |
- } |
- |
- error = open_face( driver, 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" )); |
- |
- /* set the FT_FACE_FLAG_EXTERNAL_STREAM bit for FT_Done_Face */ |
- if ( external_stream ) |
- face->face_flags |= FT_FACE_FLAG_EXTERNAL_STREAM; |
- |
- /* 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 ) |
- { |
- 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 = 0; |
- FT_ListNode node = 0; |
- |
- |
- if ( !face ) |
- return FT_THROW( Invalid_Face_Handle ); |
- |
- if ( !asize ) |
- return FT_THROW( Invalid_Size_Handle ); |
- |
- if ( !face->driver ) |
- return FT_THROW( Invalid_Driver_Handle ); |
- |
- *asize = 0; |
- |
- 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 = 0; |
- |
- 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 = 0; |
- 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; |
- |
- |
- 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; |
- |
- |
- 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 = pixel_width << 6; |
- req.height = 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 ) |
- { |
- /* 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( akerning->x, |
- face->size->metrics.x_ppem, 25 ); |
- if ( face->size->metrics.y_ppem < 25 ) |
- akerning->y = FT_MulDiv( akerning->y, |
- face->size->metrics.y_ppem, 25 ); |
- |
- akerning->x = FT_PIX_ROUND( akerning->x ); |
- akerning->y = FT_PIX_ROUND( akerning->y ); |
- } |
- } |
- } |
- } |
- |
- 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 ) |
- { |
-#ifdef FT_MAX_CHARMAP_CACHEABLE |
- if ( cur - face->charmaps > FT_MAX_CHARMAP_CACHEABLE ) |
- { |
- FT_ERROR(( "FT_Select_Charmap: requested charmap is found (%d), " |
- "but in too late position to cache\n", |
- cur - face->charmaps )); |
- continue; |
- } |
-#endif |
- 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 ) |
- 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 ) |
- { |
-#ifdef FT_MAX_CHARMAP_CACHEABLE |
- if ( cur - face->charmaps > FT_MAX_CHARMAP_CACHEABLE ) |
- { |
- FT_ERROR(( "FT_Set_Charmap: requested charmap is found (%d), " |
- "but in too late position to cache\n", |
- cur - face->charmaps )); |
- continue; |
- } |
-#endif |
- face->charmap = cur[0]; |
- return 0; |
- } |
- } |
- 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 ); |
- |
-#ifdef FT_MAX_CHARMAP_CACHEABLE |
- if ( i > FT_MAX_CHARMAP_CACHEABLE ) |
- { |
- FT_ERROR(( "FT_Get_Charmap_Index: requested charmap is found (%d), " |
- "but in too late position to cache\n", |
- i )); |
- return -i; |
- } |
-#endif |
- 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 ); |
- } |
- 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; |
- |
- |
- if ( face && face->charmap && face->num_glyphs ) |
- { |
- gindex = FT_Get_Char_Index( face, 0 ); |
- if ( gindex == 0 || gindex >= (FT_UInt)face->num_glyphs ) |
- 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 ) ) |
- { |
- 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_ERR( Invalid_Argument ); |
- |
- |
- /* clean up buffer */ |
- if ( buffer && buffer_max > 0 ) |
- ((FT_Byte*)buffer)[0] = 0; |
- |
- if ( face && |
- (FT_Long)glyph_index < face->num_glyphs && |
- FT_HAS_GLYPH_NAMES( face ) ) |
- { |
- FT_Service_GlyphDict service; |
- |
- |
- FT_FACE_LOOKUP_SERVICE( face, |
- service, |
- GLYPH_DICT ); |
- |
- if ( service && service->get_name ) |
- error = service->get_name( face, glyph_index, buffer, buffer_max ); |
- } |
- |
- 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 = 0; |
- 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; |
- |
- |
- 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 == NULL ) |
- return FT_THROW( Invalid_Argument ); |
- |
- face = size->face; |
- if ( face == NULL || face->driver == NULL ) |
- return FT_THROW( Invalid_Argument ); |
- |
- /* 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 = 0; |
- |
- |
- if ( !library ) |
- goto Exit; |
- |
- cur = library->renderers.head; |
- |
- if ( node ) |
- { |
- if ( *node ) |
- cur = (*node)->next; |
- *node = 0; |
- } |
- |
- 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 = module->library; |
- FT_Memory memory = library->memory; |
- FT_ListNode node; |
- |
- |
- 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; |
- |
- |
- if ( !library ) |
- return FT_THROW( Invalid_Library_Handle ); |
- |
- if ( !renderer ) |
- return FT_THROW( Invalid_Argument ); |
- |
- 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; |
- |
- if ( num_params > 0 ) |
- { |
- FT_Renderer_SetModeFunc 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 = 0; |
- FT_Bool update = 0; |
- |
- |
- /* 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 ); |
- update = 1; |
- } |
- |
- /* if we changed the current renderer for the glyph image format */ |
- /* we need to select it as the next current one */ |
- if ( !error && update && renderer ) |
- FT_Set_Renderer( library, renderer, 0, 0 ); |
- } |
- } |
- |
-#ifdef FT_DEBUG_LEVEL_TRACE |
- |
-#undef FT_COMPONENT |
-#define FT_COMPONENT trace_bitmap |
- |
- /* we convert to a single bitmap format for computing the checksum */ |
- { |
- FT_Bitmap bitmap; |
- FT_Error err; |
- |
- |
- FT_Bitmap_New( &bitmap ); |
- |
- err = FT_Bitmap_Convert( library, &slot->bitmap, &bitmap, 1 ); |
- if ( !err ) |
- { |
- MD5_CTX ctx; |
- unsigned char md5[16]; |
- int i; |
- |
- |
- MD5_Init( &ctx); |
- MD5_Update( &ctx, bitmap.buffer, bitmap.rows * bitmap.pitch ); |
- MD5_Final( md5, &ctx ); |
- |
- FT_TRACE3(( "MD5 checksum for %dx%d bitmap:\n" |
- " ", |
- bitmap.rows, bitmap.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 = 0; |
- |
- /* 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 ) ) |
- { |
- /* allocate glyph loader if needed */ |
- FT_Driver driver = FT_DRIVER( module ); |
- |
- |
- driver->clazz = (FT_Driver_Class)module->clazz; |
- if ( FT_DRIVER_USES_OUTLINES( driver ) ) |
- { |
- error = FT_GlyphLoader_New( memory, &driver->glyph_loader ); |
- if ( error ) |
- goto Fail; |
- } |
- } |
- |
- 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_DRIVER( module ) ) |
- { |
- FT_Driver driver = FT_DRIVER( module ); |
- |
- |
- if ( FT_DRIVER_USES_OUTLINES( driver ) ) |
- FT_GlyphLoader_Done( driver->glyph_loader ); |
- } |
- |
- 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 = 0; |
- 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] = 0; |
- |
- /* destroy the module */ |
- Destroy_Module( module ); |
- |
- return FT_Err_Ok; |
- } |
- } |
- } |
- return FT_THROW( Invalid_Driver_Handle ); |
- } |
- |
- |
- 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 interface1; |
- 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 */ |
- interface1 = cur[0]->clazz->get_interface( cur[0], |
- FT_SERVICE_ID_PROPERTIES ); |
- if ( !interface1 ) |
- { |
- FT_ERROR(( "%s: module `%s' doesn't support properties\n", |
- func_name, module_name )); |
- return FT_THROW( Unimplemented_Feature ); |
- } |
- |
- service = (FT_Service_Properties)interface1; |
- |
- 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 ) |
- { |
- 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 ) |
- 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 |
- |
- /* allocate the render pool */ |
- library->raster_pool_size = FT_RENDER_POOL_SIZE; |
-#if FT_RENDER_POOL_SIZE > 0 |
- if ( FT_ALLOC( library->raster_pool, FT_RENDER_POOL_SIZE ) ) |
- goto Fail; |
-#endif |
- |
- 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; |
- |
- Fail: |
-#ifdef FT_CONFIG_OPTION_PIC |
- 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] = 0; |
- } |
- } |
- } |
-#endif |
- |
- /* Destroy raster objects */ |
- FT_FREE( library->raster_pool ); |
- library->raster_pool_size = 0; |
- |
-#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; |
- } |
- |
- return error; |
- } |
- |
- |
-/* END */ |