ttinterp.h

Qt/Embedded是一个多平台的C++图形用户界面应用程序框架

  /*    exec  :: The target execution context.                             */
  /*                                                                       */
  /* <Return>                                                              */
  /*   TrueType error code.  0 means success.                              */
  /*                                                                       */
  LOCAL_DEF
  TT_Error  TT_Goto_CodeRange( TT_ExecContext  exec,
                               TT_Int          range,
                               TT_Long         IP );

  /*************************************************************************/
  /*                                                                       */
  /* <Function>                                                            */
  /*    TT_Set_CodeRange                                                   */
  /*                                                                       */
  /* <Description>                                                         */
  /*    Sets a code range.                                                 */
  /*                                                                       */
  /* <Input>                                                               */
  /*    range  :: The code range index.                                    */
  /*    base   :: The new code base.                                       */
  /*    length :: The range size in bytes.                                 */
  /*                                                                       */
  /* <InOut>                                                               */
  /*    exec   :: The target execution context.                            */
  /*                                                                       */
  /* <Return>                                                              */
  /*   TrueType error code.  0 means success.                              */
  /*                                                                       */
  LOCAL_DEF
  TT_Error  TT_Set_CodeRange( TT_ExecContext  exec,
                              TT_Int          range,
                              void*           base,
                              TT_Long         length );


  /*************************************************************************/
  /*                                                                       */
  /* <Function>                                                            */
  /*    TT_Clear_CodeRange                                                 */
  /*                                                                       */
  /* <Description>                                                         */
  /*    Clears a code range.                                               */
  /*                                                                       */
  /* <Input>                                                               */
  /*    range :: The code range index.                                     */
  /*                                                                       */
  /* <InOut>                                                               */
  /*    exec  :: The target execution context.                             */
  /*                                                                       */
  /* <Return>                                                              */
  /*   TrueType error code.  0 means success.                              */
  /*                                                                       */
  /* <Note>                                                                */
  /*    Does not set the Error variable.                                   */
  /*                                                                       */
  LOCAL_DEF
  TT_Error  TT_Clear_CodeRange( TT_ExecContext  exec,
                                TT_Int          range );


  /*************************************************************************/
  /*                                                                       */
  /* <Function>                                                            */
  /*    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.                                                */
  /*                                                                       */
  /* <Input>                                                               */
  /*    face :: A handle to the source face object.                        */
  /*                                                                       */
  /* <Return>                                                              */
  /*    A handle to the execution context.  Initialized for `face'.        */
  /*                                                                       */
  /* <Note>                                                                */
  /*    Only the glyph loader and debugger should call this function.      */
  /*                                                                       */
  EXPORT_DEF
  TT_ExecContext  TT_New_Context( TT_Face  face );


  /*************************************************************************/
  /*                                                                       */
  /* <Function>                                                            */
  /*    TT_Done_Context                                                    */
  /*                                                                       */
  /* <Description>                                                         */
  /*    Discards an execution context.                                     */
  /*                                                                       */
  /* <Input>                                                               */
  /*    exec :: A handle to the target execution context.                  */
  /*                                                                       */
  /* <Return>                                                              */
  /*    TrueType error code.  0 means success.                             */
  /*                                                                       */
  /* <Note>                                                                */
  /*    Only the glyph loader and debugger should call this function.      */
  /*                                                                       */
  EXPORT_DEF
  TT_Error  TT_Done_Context( TT_ExecContext  exec );


  /*************************************************************************/
  /*                                                                       */
  /* <Function>                                                            */
  /*    TT_Destroy_Context                                                 */
  /*                                                                       */
  /* <Description>                                                         */
  /*    Destroys a given context.                                          */
  /*                                                                       */
  /* <Input>                                                               */
  /*    exec   :: A handle to the target execution context.                */
  /*    memory :: A handle to the parent memory object.                    */
  /*                                                                       */
  /* <Return>                                                              */
  /*    TrueType error code.  0 means success.                             */
  /*                                                                       */
  /* <Note>                                                                */
  /*    Only the glyph loader and debugger should call this function.      */
  /*                                                                       */
  LOCAL_DEF
  TT_Error  TT_Destroy_Context( TT_ExecContext  exec,
                                FT_Memory       memory );


  /*************************************************************************/
  /*                                                                       */
  /* <Function>                                                            */
  /*    TT_Load_Context                                                    */
  /*                                                                       */
  /* <Description>                                                         */
  /*    Prepare an execution context for glyph hinting.                    */
  /*                                                                       */
  /* <Input>                                                               */
  /*    exec :: A handle to the target execution context.                  */
  /*    face :: A handle to the source face object.                        */
  /*    size :: A handle to the source size object.                        */
  /*                                                                       */
  /* <Return>                                                              */
  /*    TrueType error code.  0 means success.                             */
  /*                                                                       */
  /* <Note>                                                                */
  /*    Only the glyph loader and debugger should call this function.      */
  /*                                                                       */
  EXPORT_DEF
  TT_Error  TT_Load_Context( TT_ExecContext  exec,
                             TT_Face         face,
                             TT_Size         size );


  /*************************************************************************/
  /*                                                                       */
  /* <Function>                                                            */
  /*    TT_Save_Context                                                    */
  /*                                                                       */
  /* <Description>                                                         */
  /*    Saves the code ranges in a `size' object.                          */
  /*                                                                       */
  /* <Input>                                                               */
  /*    exec :: A handle to the source execution context.                  */
  /*                                                                       */
  /* <Output>                                                              */
  /*    ins  :: A handle to the target size object.                        */
  /*                                                                       */
  /* <Return>                                                              */
  /*    TrueType error code.  0 means success.                             */
  /*                                                                       */
  /* <Note>                                                                */
  /*    Only the glyph loader and debugger should call this function.      */
  /*                                                                       */
  LOCAL_DEF
  TT_Error  TT_Save_Context( TT_ExecContext  exec,
                             TT_Size         ins );


  /*************************************************************************/
  /*                                                                       */
  /* <Function>                                                            */
  /*    TT_Run_Context                                                     */
  /*                                                                       */
  /* <Description>                                                         */
  /*    Executes one or more instructions in the execution context.        */
  /*                                                                       */
  /* <Input>                                                               */
  /*    exec  :: A handle to the target execution context.                 */
  /*                                                                       */
  /*    debug :: A Boolean flag.  If set, the function sets some internal  */
  /*             variables and returns immediately, otherwise TT_RunIns()  */
  /*             is called.                                                */
  /*                                                                       */
  /* <Return>                                                              */
  /*    TrueTyoe error code.  0 means success.                             */
  /*                                                                       */
  /* <Note>                                                                */
  /*    Only the glyph loader and debugger should call this function.      */
  /*                                                                       */
  LOCAL_DEF
  TT_Error  TT_Run_Context( TT_ExecContext  exec,
                            TT_Bool         debug );


  /*************************************************************************/
  /*                                                                       */
  /* <Function>                                                            */
  /*    TT_RunIns                                                          */
  /*                                                                       */
  /* <Description>                                                         */
  /*    Executes one or more instruction in the execution context.  This   */
  /*    is the main function of the TrueType opcode interpreter.           */
  /*                                                                       */
  /* <Input>                                                               */
  /*    exec :: A handle to the target execution context.                  */
  /*                                                                       */
  /* <Return>                                                              */
  /*    TrueType error code.  0 means success.                             */
  /*                                                                       */
  /* <Note>                                                                */
  /*    Only object manager and debugger should call this function.        */
  /*                                                                       */
  EXPORT_DEF
  TT_Error  TT_RunIns( TT_ExecContext  exec );


#ifdef __cplusplus
  }
#endif

#endif /* TTINTERP_H */


/* END */