diff options
Diffstat (limited to 'src/3rdparty/freetype/src/truetype/ttinterp.h')
| -rw-r--r-- | src/3rdparty/freetype/src/truetype/ttinterp.h | 182 |
1 files changed, 53 insertions, 129 deletions
diff --git a/src/3rdparty/freetype/src/truetype/ttinterp.h b/src/3rdparty/freetype/src/truetype/ttinterp.h index 0cb1e892fb..e98e258fe7 100644 --- a/src/3rdparty/freetype/src/truetype/ttinterp.h +++ b/src/3rdparty/freetype/src/truetype/ttinterp.h @@ -4,7 +4,7 @@ * * TrueType bytecode interpreter (specification). * - * Copyright (C) 1996-2019 by + * Copyright (C) 1996-2023 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -19,7 +19,6 @@ #ifndef TTINTERP_H_ #define TTINTERP_H_ -#include <ft2build.h> #include "ttobjs.h" @@ -52,7 +51,7 @@ FT_BEGIN_HEADER typedef FT_F26Dot6 (*TT_Round_Func)( TT_ExecContext exc, FT_F26Dot6 distance, - FT_F26Dot6 compensation ); + FT_Int color ); /* Point displacement along the freedom vector routine */ typedef void @@ -99,83 +98,45 @@ FT_BEGIN_HEADER } TT_CallRec, *TT_CallStack; -#ifdef TT_SUPPORT_SUBPIXEL_HINTING_INFINALITY - - /************************************************************************** - * - * These structures define rules used to tweak subpixel hinting for - * various fonts. "", 0, "", NULL value indicates to match any value. - */ - -#define SPH_MAX_NAME_SIZE 32 -#define SPH_MAX_CLASS_MEMBERS 100 - - typedef struct SPH_TweakRule_ - { - const char family[SPH_MAX_NAME_SIZE]; - const FT_UInt ppem; - const char style[SPH_MAX_NAME_SIZE]; - const FT_ULong glyph; - - } SPH_TweakRule; - - - typedef struct SPH_ScaleRule_ - { - const char family[SPH_MAX_NAME_SIZE]; - const FT_UInt ppem; - const char style[SPH_MAX_NAME_SIZE]; - const FT_ULong glyph; - const FT_ULong scale; - - } SPH_ScaleRule; - - - typedef struct SPH_Font_Class_ - { - const char name[SPH_MAX_NAME_SIZE]; - const char member[SPH_MAX_CLASS_MEMBERS][SPH_MAX_NAME_SIZE]; - - } SPH_Font_Class; - -#endif /* TT_SUPPORT_SUBPIXEL_HINTING_INFINALITY */ - - /************************************************************************** * * The main structure for the interpreter which collects all necessary * variables and states. + * + * Members that are initialized by `TT_Load_Context` are marked with '!'. + * Members that are initialized by `TT_Run_Context` are marked with '@'. */ typedef struct TT_ExecContextRec_ { - TT_Face face; - TT_Size size; + TT_Face face; /* ! */ + TT_Size size; /* ! */ FT_Memory memory; /* instructions state */ FT_Error error; /* last execution error */ - FT_Long top; /* top of exec. stack */ + FT_Long top; /* @ top of exec. stack */ - FT_Long stackSize; /* size of exec. stack */ - FT_Long* stack; /* current exec. stack */ + FT_Long stackSize; /* ! size of exec. stack */ + FT_Long* stack; /* ! current exec. stack */ FT_Long args; - FT_Long new_top; /* new top after exec. */ + FT_Long new_top; /* new top after exec. */ - TT_GlyphZoneRec zp0, /* zone records */ - zp1, - zp2, - pts, - twilight; + TT_GlyphZoneRec zp0, /* @! zone records */ + zp1, /* @! */ + zp2, /* @! */ + pts, /* ! */ + twilight; /* ! */ - FT_Long pointSize; /* in 26.6 format */ - FT_Size_Metrics metrics; - TT_Size_Metrics tt_metrics; /* size metrics */ + FT_Long pointSize; /* ! in 26.6 format */ + FT_Size_Metrics metrics; /* ! */ + TT_Size_Metrics tt_metrics; /* ! size metrics */ - TT_GraphicsState GS; /* current graphics state */ + TT_GraphicsState GS; /* !@ current graphics state */ + FT_Int iniRange; /* initial code range number */ FT_Int curRange; /* current code range number */ FT_Byte* code; /* current code range */ FT_Long IP; /* current instruction pointer */ @@ -186,43 +147,47 @@ FT_BEGIN_HEADER FT_Bool step_ins; /* true if the interpreter must */ /* increment IP after ins. exec */ - FT_ULong cvtSize; - FT_Long* cvt; + FT_ULong cvtSize; /* ! */ + FT_Long* cvt; /* ! */ + FT_ULong glyfCvtSize; + FT_Long* glyfCvt; /* cvt working copy for glyph */ - FT_UInt glyphSize; /* glyph instructions buffer size */ - FT_Byte* glyphIns; /* glyph instructions buffer */ + FT_UInt glyphSize; /* ! glyph instructions buffer size */ + FT_Byte* glyphIns; /* ! glyph instructions buffer */ - FT_UInt numFDefs; /* number of function defs */ - FT_UInt maxFDefs; /* maximum number of function defs */ - TT_DefArray FDefs; /* table of FDefs entries */ + FT_UInt numFDefs; /* ! number of function defs */ + FT_UInt maxFDefs; /* ! maximum number of function defs */ + TT_DefArray FDefs; /* table of FDefs entries */ - FT_UInt numIDefs; /* number of instruction defs */ - FT_UInt maxIDefs; /* maximum number of ins defs */ - TT_DefArray IDefs; /* table of IDefs entries */ + FT_UInt numIDefs; /* ! number of instruction defs */ + FT_UInt maxIDefs; /* ! maximum number of ins defs */ + TT_DefArray IDefs; /* table of IDefs entries */ - FT_UInt maxFunc; /* maximum function index */ - FT_UInt maxIns; /* maximum instruction index */ + FT_UInt maxFunc; /* ! maximum function index */ + FT_UInt maxIns; /* ! maximum instruction index */ - FT_Int callTop, /* top of call stack during execution */ - callSize; /* size of call stack */ - TT_CallStack callStack; /* call stack */ + FT_Int callTop, /* @ top of call stack during execution */ + callSize; /* size of call stack */ + TT_CallStack callStack; /* call stack */ FT_UShort maxPoints; /* capacity of this context's `pts' */ FT_Short maxContours; /* record, expressed in points and */ /* contours. */ - TT_CodeRangeTable codeRangeTable; /* table of valid code ranges */ - /* useful for the debugger */ + TT_CodeRangeTable codeRangeTable; /* ! table of valid code ranges */ + /* useful for the debugger */ - FT_UShort storeSize; /* size of current storage */ - FT_Long* storage; /* storage area */ + FT_UShort storeSize; /* ! size of current storage */ + FT_Long* storage; /* ! storage area */ + FT_UShort glyfStoreSize; + FT_Long* glyfStorage; /* storage working copy for glyph */ FT_F26Dot6 period; /* values used for the */ FT_F26Dot6 phase; /* `SuperRounding' */ FT_F26Dot6 threshold; - FT_Bool instruction_trap; /* If `True', the interpreter will */ - /* exit after each instruction */ + FT_Bool instruction_trap; /* ! If `True', the interpreter */ + /* exits after each instruction */ TT_GraphicsState default_GS; /* graphics state resulting from */ /* the prep program */ @@ -239,7 +204,7 @@ FT_BEGIN_HEADER func_dualproj, /* current dual proj. function */ func_freeProj; /* current freedom proj. func */ - TT_Move_Func func_move; /* current point move function */ + TT_Move_Func func_move; /* current point move function */ TT_Move_Func func_move_orig; /* move original position function */ TT_Cur_Ppem_Func func_cur_ppem; /* get current proj. ppem value */ @@ -392,38 +357,6 @@ FT_BEGIN_HEADER FT_Bool grayscale_cleartype; #endif /* TT_SUPPORT_SUBPIXEL_HINTING_MINIMAL */ -#ifdef TT_SUPPORT_SUBPIXEL_HINTING_INFINALITY - TT_Round_Func func_round_sphn; /* subpixel rounding function */ - - FT_Bool subpixel_hinting; /* Using subpixel hinting? */ - FT_Bool ignore_x_mode; /* Standard rendering mode for */ - /* subpixel hinting. On if gray */ - /* or subpixel hinting is on. */ - - /* The following 6 aren't fully implemented but here for MS rasterizer */ - /* compatibility. */ - FT_Bool compatible_widths; /* compatible widths? */ - FT_Bool symmetrical_smoothing; /* symmetrical_smoothing? */ - FT_Bool bgr; /* bgr instead of rgb? */ - FT_Bool vertical_lcd; /* long side of LCD subpixel */ - /* rectangles is horizontal */ - FT_Bool subpixel_positioned; /* subpixel positioned */ - /* (DirectWrite ClearType)? */ - FT_Bool gray_cleartype; /* ClearType hinting but */ - /* grayscale rendering */ - - FT_Int rasterizer_version; /* MS rasterizer version */ - - FT_Bool iup_called; /* IUP called for glyph? */ - - FT_ULong sph_tweak_flags; /* flags to control */ - /* hint tweaks */ - - FT_ULong sph_in_func_flags; /* flags to indicate if in */ - /* special functions */ - -#endif /* TT_SUPPORT_SUBPIXEL_HINTING_INFINALITY */ - /* We maintain two counters (in addition to the instruction counter) */ /* that act as loop detectors for LOOPCALL and jump opcodes with */ /* negative arguments. */ @@ -453,14 +386,6 @@ FT_BEGIN_HEADER FT_LOCAL( void ) TT_Clear_CodeRange( TT_ExecContext exec, FT_Int range ); - - - FT_LOCAL( FT_Error ) - Update_Max( FT_Memory memory, - FT_ULong* size, - FT_ULong multiplier, - void* _pbuff, - FT_ULong new_max ); #endif /* TT_USE_BYTECODE_INTERPRETER */ @@ -470,16 +395,15 @@ FT_BEGIN_HEADER * TT_New_Context * * @Description: - * Queries the face context for a given font. Note that there is - * now a _single_ execution context in the TrueType driver which is - * shared among faces. + * Create a `TT_ExecContext`. Note that there is now an execution + * context per `TT_Size` that is not shared among faces. * * @Input: - * face :: - * A handle to the source face object. + * driver :: + * A handle to the driver, used for memory allocation. * * @Return: - * A handle to the execution context. Initialized for `face'. + * A handle to a new empty execution context. * * @Note: * Only the glyph loader and debugger should call this function. @@ -530,7 +454,7 @@ FT_BEGIN_HEADER * invoked by the TrueType debugger. */ FT_EXPORT( FT_Error ) - TT_RunIns( TT_ExecContext exec ); + TT_RunIns( void* exec ); FT_END_HEADER |