diff options
Diffstat (limited to 'src/3rdparty/freetype/src/truetype/ttdriver.c')
| -rw-r--r-- | src/3rdparty/freetype/src/truetype/ttdriver.c | 224 |
1 files changed, 111 insertions, 113 deletions
diff --git a/src/3rdparty/freetype/src/truetype/ttdriver.c b/src/3rdparty/freetype/src/truetype/ttdriver.c index 820cafbb8d..ff626d53ab 100644 --- a/src/3rdparty/freetype/src/truetype/ttdriver.c +++ b/src/3rdparty/freetype/src/truetype/ttdriver.c @@ -1,19 +1,19 @@ -/***************************************************************************/ -/* */ -/* ttdriver.c */ -/* */ -/* TrueType font driver implementation (body). */ -/* */ -/* Copyright 1996-2018 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. */ -/* */ -/***************************************************************************/ +/**************************************************************************** + * + * ttdriver.c + * + * TrueType font driver implementation (body). + * + * Copyright (C) 1996-2019 by + * David Turner, Robert Wilhelm, and Werner Lemberg. + * + * This file is part of the FreeType project, and may only be used, + * modified, and distributed under the terms of the FreeType project + * license, LICENSE.TXT. By continuing to use, modify, or distribute + * this file you indicate that you have read the license and + * understand and accept it fully. + * + */ #include <ft2build.h> @@ -43,20 +43,19 @@ #include "tterrors.h" -#include "ttpic.h" - /*************************************************************************/ - /* */ - /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ - /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ - /* messages during execution. */ - /* */ + /************************************************************************** + * + * 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_ttdriver +#define FT_COMPONENT ttdriver /* - * PROPERTY SERVICE + * PROPERTY SERVICE * */ static FT_Error @@ -164,38 +163,42 @@ /*************************************************************************/ - /*************************************************************************/ - /* */ - /* <Function> */ - /* tt_get_kerning */ - /* */ - /* <Description> */ - /* A driver method used to return the kerning vector between two */ - /* glyphs of the same face. */ - /* */ - /* <Input> */ - /* face :: A handle to the source face object. */ - /* */ - /* left_glyph :: The index of the left glyph in the kern pair. */ - /* */ - /* right_glyph :: The index of the right glyph in the kern pair. */ - /* */ - /* <Output> */ - /* kerning :: The kerning vector. This is in font units for */ - /* scalable formats, and in pixels for fixed-sizes */ - /* formats. */ - /* */ - /* <Return> */ - /* FreeType error code. 0 means success. */ - /* */ - /* <Note> */ - /* Only horizontal layouts (left-to-right & right-to-left) are */ - /* supported by this function. Other layouts, or more sophisticated */ - /* kernings, are out of scope of this method (the basic driver */ - /* interface is meant to be simple). */ - /* */ - /* They can be implemented by format-specific interfaces. */ - /* */ + /************************************************************************** + * + * @Function: + * tt_get_kerning + * + * @Description: + * A driver method used to return the kerning vector between two + * glyphs of the same face. + * + * @Input: + * face :: + * A handle to the source face object. + * + * left_glyph :: + * The index of the left glyph in the kern pair. + * + * right_glyph :: + * The index of the right glyph in the kern pair. + * + * @Output: + * kerning :: + * The kerning vector. This is in font units for + * scalable formats, and in pixels for fixed-sizes + * formats. + * + * @Return: + * FreeType error code. 0 means success. + * + * @Note: + * Only horizontal layouts (left-to-right & right-to-left) are + * supported by this function. Other layouts, or more sophisticated + * kernings, are out of scope of this method (the basic driver + * interface is meant to be simple). + * + * They can be implemented by format-specific interfaces. + */ static FT_Error tt_get_kerning( FT_Face ttface, /* TT_Face */ FT_UInt left_glyph, @@ -384,32 +387,36 @@ } - /*************************************************************************/ - /* */ - /* <Function> */ - /* tt_glyph_load */ - /* */ - /* <Description> */ - /* A driver method used to load a glyph within a given glyph slot. */ - /* */ - /* <Input> */ - /* slot :: A handle to the target slot object where the glyph */ - /* will be loaded. */ - /* */ - /* size :: A handle to the source face size at which the glyph */ - /* must be scaled, loaded, etc. */ - /* */ - /* glyph_index :: The index of the glyph in the font file. */ - /* */ - /* load_flags :: A flag indicating what to load for this glyph. The */ - /* FT_LOAD_XXX constants can be used to control the */ - /* glyph loading process (e.g., whether the outline */ - /* should be scaled, whether to load bitmaps or not, */ - /* whether to hint the outline, etc). */ - /* */ - /* <Return> */ - /* FreeType error code. 0 means success. */ - /* */ + /************************************************************************** + * + * @Function: + * tt_glyph_load + * + * @Description: + * A driver method used to load a glyph within a given glyph slot. + * + * @Input: + * slot :: + * A handle to the target slot object where the glyph + * will be loaded. + * + * size :: + * A handle to the source face size at which the glyph + * must be scaled, loaded, etc. + * + * glyph_index :: + * The index of the glyph in the font file. + * + * load_flags :: + * A flag indicating what to load for this glyph. The + * FT_LOAD_XXX constants can be used to control the + * glyph loading process (e.g., whether the outline + * should be scaled, whether to load bitmaps or not, + * whether to hint the outline, etc). + * + * @Return: + * FreeType error code. 0 means success. + */ static FT_Error tt_glyph_load( FT_GlyphSlot ttslot, /* TT_GlyphSlot */ FT_Size ttsize, /* TT_Size */ @@ -464,7 +471,7 @@ ? &ttsize->metrics : &size->hinted_metrics; - /* now load the glyph outline if necessary */ + /* now fill in the glyph slot with outline/bitmap/layered */ error = TT_Load_Glyph( size, slot, glyph_index, load_flags ); /* force drop-out mode to 2 - irrelevant now */ @@ -491,17 +498,19 @@ FT_DEFINE_SERVICE_MULTIMASTERSREC( tt_service_gx_multi_masters, - (FT_Get_MM_Func) NULL, /* get_mm */ - (FT_Set_MM_Design_Func) NULL, /* set_mm_design */ - (FT_Set_MM_Blend_Func) TT_Set_MM_Blend, /* set_mm_blend */ - (FT_Get_MM_Blend_Func) TT_Get_MM_Blend, /* get_mm_blend */ - (FT_Get_MM_Var_Func) TT_Get_MM_Var, /* get_mm_var */ - (FT_Set_Var_Design_Func)TT_Set_Var_Design, /* set_var_design */ - (FT_Get_Var_Design_Func)TT_Get_Var_Design, /* get_var_design */ - (FT_Set_Instance_Func) TT_Set_Named_Instance, /* set_instance */ - - (FT_Get_Var_Blend_Func) tt_get_var_blend, /* get_var_blend */ - (FT_Done_Blend_Func) tt_done_blend /* done_blend */ + (FT_Get_MM_Func) NULL, /* get_mm */ + (FT_Set_MM_Design_Func) NULL, /* set_mm_design */ + (FT_Set_MM_Blend_Func) TT_Set_MM_Blend, /* set_mm_blend */ + (FT_Get_MM_Blend_Func) TT_Get_MM_Blend, /* get_mm_blend */ + (FT_Get_MM_Var_Func) TT_Get_MM_Var, /* get_mm_var */ + (FT_Set_Var_Design_Func) TT_Set_Var_Design, /* set_var_design */ + (FT_Get_Var_Design_Func) TT_Get_Var_Design, /* get_var_design */ + (FT_Set_Instance_Func) TT_Set_Named_Instance, /* set_instance */ + (FT_Set_MM_WeightVector_Func)NULL, /* set_mm_weightvector */ + (FT_Get_MM_WeightVector_Func)NULL, /* get_mm_weightvector */ + + (FT_Get_Var_Blend_Func) tt_get_var_blend, /* get_var_blend */ + (FT_Done_Blend_Func) tt_done_blend /* done_blend */ ) FT_DEFINE_SERVICE_METRICSVARIATIONSREC( @@ -548,19 +557,19 @@ tt_services, FT_SERVICE_ID_FONT_FORMAT, FT_FONT_FORMAT_TRUETYPE, - FT_SERVICE_ID_MULTI_MASTERS, &TT_SERVICE_GX_MULTI_MASTERS_GET, - FT_SERVICE_ID_METRICS_VARIATIONS, &TT_SERVICE_METRICS_VARIATIONS_GET, + FT_SERVICE_ID_MULTI_MASTERS, &tt_service_gx_multi_masters, + FT_SERVICE_ID_METRICS_VARIATIONS, &tt_service_metrics_variations, FT_SERVICE_ID_TRUETYPE_ENGINE, &tt_service_truetype_engine, - FT_SERVICE_ID_TT_GLYF, &TT_SERVICE_TRUETYPE_GLYF_GET, - FT_SERVICE_ID_PROPERTIES, &TT_SERVICE_PROPERTIES_GET ) + FT_SERVICE_ID_TT_GLYF, &tt_service_truetype_glyf, + FT_SERVICE_ID_PROPERTIES, &tt_service_properties ) #else FT_DEFINE_SERVICEDESCREC4( tt_services, FT_SERVICE_ID_FONT_FORMAT, FT_FONT_FORMAT_TRUETYPE, FT_SERVICE_ID_TRUETYPE_ENGINE, &tt_service_truetype_engine, - FT_SERVICE_ID_TT_GLYF, &TT_SERVICE_TRUETYPE_GLYF_GET, - FT_SERVICE_ID_PROPERTIES, &TT_SERVICE_PROPERTIES_GET ) + FT_SERVICE_ID_TT_GLYF, &tt_service_truetype_glyf, + FT_SERVICE_ID_PROPERTIES, &tt_service_properties ) #endif @@ -574,26 +583,15 @@ SFNT_Service sfnt; - /* TT_SERVICES_GET dereferences `library' in PIC mode */ -#ifdef FT_CONFIG_OPTION_PIC - if ( !driver ) - return NULL; - library = driver->library; - if ( !library ) - return NULL; -#endif - - result = ft_service_list_lookup( TT_SERVICES_GET, tt_interface ); + result = ft_service_list_lookup( tt_services, tt_interface ); if ( result ) return result; -#ifndef FT_CONFIG_OPTION_PIC if ( !driver ) return NULL; library = driver->library; if ( !library ) return NULL; -#endif /* only return the default interface from the SFNT module */ sfntd = FT_Get_Module( library, "sfnt" ); |