/**************************************************************************** * * pfrsbit.c * * FreeType PFR bitmap loader (body). * * Copyright (C) 2002-2023 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 "pfrsbit.h" #include "pfrload.h" #include <freetype/internal/ftdebug.h> #include <freetype/internal/ftstream.h> #include "pfrerror.h" #undef FT_COMPONENT #define FT_COMPONENT … /*************************************************************************/ /*************************************************************************/ /***** *****/ /***** PFR BIT WRITER *****/ /***** *****/ /*************************************************************************/ /*************************************************************************/ PFR_BitWriter; static void pfr_bitwriter_init( PFR_BitWriter writer, FT_Bitmap* target, FT_Bool decreasing ) { … } static void pfr_bitwriter_decode_bytes( PFR_BitWriter writer, FT_Byte* p, FT_Byte* limit ) { … } static void pfr_bitwriter_decode_rle1( PFR_BitWriter writer, FT_Byte* p, FT_Byte* limit ) { … } static void pfr_bitwriter_decode_rle2( PFR_BitWriter writer, FT_Byte* p, FT_Byte* limit ) { … } /*************************************************************************/ /*************************************************************************/ /***** *****/ /***** BITMAP DATA DECODING *****/ /***** *****/ /*************************************************************************/ /*************************************************************************/ static void pfr_lookup_bitmap_data( FT_Byte* base, FT_Byte* limit, FT_UInt count, FT_UInt* flags, FT_UInt char_code, FT_ULong* found_offset, FT_ULong* found_size ) { … } /* load bitmap metrics. `*aadvance' must be set to the default value */ /* before calling this function */ /* */ static FT_Error pfr_load_bitmap_metrics( FT_Byte** pdata, FT_Byte* limit, FT_Long scaled_advance, FT_Long *axpos, FT_Long *aypos, FT_UInt *axsize, FT_UInt *aysize, FT_Long *aadvance, FT_UInt *aformat ) { … } static FT_Error pfr_load_bitmap_bits( FT_Byte* p, FT_Byte* limit, FT_UInt format, FT_Bool decreasing, FT_Bitmap* target ) { … } /*************************************************************************/ /*************************************************************************/ /***** *****/ /***** BITMAP LOADING *****/ /***** *****/ /*************************************************************************/ /*************************************************************************/ FT_LOCAL_DEF( FT_Error ) pfr_slot_load_bitmap( PFR_Slot glyph, PFR_Size size, FT_UInt glyph_index, FT_Bool metrics_only ) { … } /* END */
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