dlls/dwrite/dwrite_private.h

   1 /*
   2  * Copyright 2012 Nikolay Sivov for CodeWeavers
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  17  */
  18
  19 #include "wine/debug.h"
  20 #include "wine/unicode.h"
  21
  22 static inline void *heap_alloc(size_t len)
  23 {
  24     return HeapAlloc(GetProcessHeap(), 0, len);
  25 }
  26
  27 static inline void *heap_alloc_zero(size_t len)
  28 {
  29     return HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, len);
  30 }
  31
  32 static inline void *heap_realloc(void *mem, size_t len)
  33 {
  34     return HeapReAlloc(GetProcessHeap(), 0, mem, len);
  35 }
  36
  37 static inline void *heap_realloc_zero(void *mem, size_t len)
  38 {
  39     return HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, mem, len);
  40 }
  41
  42 static inline BOOL heap_free(void *mem)
  43 {
  44     return HeapFree(GetProcessHeap(), 0, mem);
  45 }
  46
  47 static inline LPWSTR heap_strdupW(const WCHAR *str)
  48 {
  49     LPWSTR ret = NULL;
  50
  51     if(str) {
  52         DWORD size;
  53
  54         size = (strlenW(str)+1)*sizeof(WCHAR);
  55         ret = heap_alloc(size);
  56         if(ret)
  57             memcpy(ret, str, size);
  58     }
  59
  60     return ret;
  61 }
  62
  63 static inline LPWSTR heap_strdupnW(const WCHAR *str, UINT32 len)
  64 {
  65     WCHAR *ret = NULL;
  66
  67     if (len)
  68     {
  69         ret = heap_alloc((len+1)*sizeof(WCHAR));
  70         if(ret)
  71         {
  72             memcpy(ret, str, len*sizeof(WCHAR));
  73             ret[len] = 0;
  74         }
  75     }
  76
  77     return ret;
  78 }
  79
  80 static inline const char *debugstr_range(const DWRITE_TEXT_RANGE *range)
  81 {
  82     return wine_dbg_sprintf("%u:%u", range->startPosition, range->length);
  83 }
  84
  85 static inline unsigned short get_table_entry(const unsigned short *table, WCHAR ch)
  86 {
  87     return table[table[table[ch >> 8] + ((ch >> 4) & 0x0f)] + (ch & 0xf)];
  88 }
  89
  90 extern HRESULT create_font_from_logfont(const LOGFONTW*, IDWriteFont**) DECLSPEC_HIDDEN;
  91 extern HRESULT convert_fontface_to_logfont(IDWriteFontFace*, LOGFONTW*) DECLSPEC_HIDDEN;
  92 extern HRESULT create_numbersubstitution(DWRITE_NUMBER_SUBSTITUTION_METHOD,const WCHAR *locale,BOOL,IDWriteNumberSubstitution**) DECLSPEC_HIDDEN;
  93 extern HRESULT create_textformat(const WCHAR*,IDWriteFontCollection*,DWRITE_FONT_WEIGHT,DWRITE_FONT_STYLE,DWRITE_FONT_STRETCH,
  94                                  FLOAT,const WCHAR*,IDWriteTextFormat**) DECLSPEC_HIDDEN;
  95 extern HRESULT create_textlayout(const WCHAR*,UINT32,IDWriteTextFormat*,FLOAT,FLOAT,IDWriteTextLayout**) DECLSPEC_HIDDEN;
  96 extern HRESULT create_trimmingsign(IDWriteInlineObject**) DECLSPEC_HIDDEN;
  97 extern HRESULT create_typography(IDWriteTypography**) DECLSPEC_HIDDEN;
  98 extern HRESULT get_gdiinterop(IDWriteGdiInterop**) DECLSPEC_HIDDEN;
  99 extern HRESULT create_localizedstrings(IDWriteLocalizedStrings**) DECLSPEC_HIDDEN;
 100 extern HRESULT add_localizedstring(IDWriteLocalizedStrings*,const WCHAR*,const WCHAR*) DECLSPEC_HIDDEN;
 101 extern HRESULT clone_localizedstring(IDWriteLocalizedStrings *iface, IDWriteLocalizedStrings **strings) DECLSPEC_HIDDEN;
 102 extern HRESULT get_system_fontcollection(IDWriteFontCollection**) DECLSPEC_HIDDEN;
 103 extern HRESULT get_textanalyzer(IDWriteTextAnalyzer**) DECLSPEC_HIDDEN;
 104 extern HRESULT create_font_file(IDWriteFontFileLoader *loader, const void *reference_key, UINT32 key_size, IDWriteFontFile **font_file) DECLSPEC_HIDDEN;
 105 extern HRESULT create_localfontfileloader(IDWriteLocalFontFileLoader** iface) DECLSPEC_HIDDEN;
 106 extern HRESULT font_create_fontface(IDWriteFactory *iface, DWRITE_FONT_FACE_TYPE facetype, UINT32 files_number, IDWriteFontFile* const* font_files, UINT32 index, DWRITE_FONT_SIMULATIONS sim_flags, IDWriteFontFace **font_face) DECLSPEC_HIDDEN;
 107
 108 /* Opentype font table functions */
 109 extern HRESULT opentype_analyze_font(IDWriteFontFileStream*,UINT32*,DWRITE_FONT_FILE_TYPE*,DWRITE_FONT_FACE_TYPE*,BOOL*) DECLSPEC_HIDDEN;
 110 extern HRESULT opentype_get_font_table(IDWriteFontFileStream*,DWRITE_FONT_FACE_TYPE,UINT32,UINT32,const void**,void**,UINT32*,BOOL*) DECLSPEC_HIDDEN;
 111 extern VOID OpenType_CMAP_GetGlyphIndex(LPVOID data, DWORD utf32c, LPWORD pgi, DWORD flags) DECLSPEC_HIDDEN;
 112 extern VOID get_font_properties(LPCVOID os2, LPCVOID head, LPCVOID post, DWRITE_FONT_METRICS *metrics, DWRITE_FONT_STRETCH *stretch, DWRITE_FONT_WEIGHT *weight, DWRITE_FONT_STYLE *style) DECLSPEC_HIDDEN;
 113
 114 extern HRESULT bidi_computelevels(const WCHAR*,UINT32,UINT8,UINT8*,UINT8*);
 115 extern WCHAR bidi_get_mirrored_char(WCHAR);
 116
 117 /* Glyph shaping */
 118 enum SCRIPT_JUSTIFY
 119 {
 120     SCRIPT_JUSTIFY_NONE,
 121     SCRIPT_JUSTIFY_ARABIC_BLANK,
 122     SCRIPT_JUSTIFY_CHARACTER,
 123     SCRIPT_JUSTIFY_RESERVED1,
 124     SCRIPT_JUSTIFY_BLANK,
 125     SCRIPT_JUSTIFY_RESERVED2,
 126     SCRIPT_JUSTIFY_RESERVED3,
 127     SCRIPT_JUSTIFY_ARABIC_NORMAL,
 128     SCRIPT_JUSTIFY_ARABIC_KASHIDA,
 129     SCRIPT_JUSTIFY_ARABIC_ALEF,
 130     SCRIPT_JUSTIFY_ARABIC_HA,
 131     SCRIPT_JUSTIFY_ARABIC_RA,
 132     SCRIPT_JUSTIFY_ARABIC_BA,
 133     SCRIPT_JUSTIFY_ARABIC_BARA,
 134     SCRIPT_JUSTIFY_ARABIC_SEEN,
 135     SCRIPT_JUSTIFY_ARABIC_SEEN_M
 136 };
 137
 138 struct scriptshaping_cache;
 139 extern HRESULT create_scriptshaping_cache(IDWriteFontFace*,const WCHAR*,struct scriptshaping_cache**) DECLSPEC_HIDDEN;
 140 extern void release_scriptshaping_cache(struct scriptshaping_cache*) DECLSPEC_HIDDEN;
 141
 142 struct scriptshaping_ops
 143 {
 144     HRESULT (*contextual_shaping)(struct scriptshaping_cache *cache, BOOL is_rtl, const WCHAR *text, UINT32 len, UINT32 max_glyph_count,
 145                                   UINT16 *clustermap, UINT16 *glyph_indices, UINT32* actual_glyph_count);
 146     HRESULT (*set_text_glyphs_props)(struct scriptshaping_cache *cache, const WCHAR *text, UINT32 len, UINT16 *clustermap, UINT16 *glyph_indices,
 147                                      UINT32 glyphcount, DWRITE_SHAPING_TEXT_PROPERTIES *text_props, DWRITE_SHAPING_GLYPH_PROPERTIES *glyph_props);
 148 };
 149
 150 extern const struct scriptshaping_ops default_shaping_ops DECLSPEC_HIDDEN;
 151 extern const struct scriptshaping_ops latn_shaping_ops DECLSPEC_HIDDEN;