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 "dwrite_2.h"
  20
  21 #include "wine/debug.h"
  22 #include "wine/unicode.h"
  23
  24 static inline void *heap_alloc(size_t len)
  25 {
  26     return HeapAlloc(GetProcessHeap(), 0, len);
  27 }
  28
  29 static inline void *heap_alloc_zero(size_t len)
  30 {
  31     return HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, len);
  32 }
  33
  34 static inline void *heap_realloc(void *mem, size_t len)
  35 {
  36     return HeapReAlloc(GetProcessHeap(), 0, mem, len);
  37 }
  38
  39 static inline void *heap_realloc_zero(void *mem, size_t len)
  40 {
  41     return HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, mem, len);
  42 }
  43
  44 static inline BOOL heap_free(void *mem)
  45 {
  46     return HeapFree(GetProcessHeap(), 0, mem);
  47 }
  48
  49 static inline LPWSTR heap_strdupW(const WCHAR *str)
  50 {
  51     LPWSTR ret = NULL;
  52
  53     if(str) {
  54         DWORD size;
  55
  56         size = (strlenW(str)+1)*sizeof(WCHAR);
  57         ret = heap_alloc(size);
  58         if(ret)
  59             memcpy(ret, str, size);
  60     }
  61
  62     return ret;
  63 }
  64
  65 static inline LPWSTR heap_strdupnW(const WCHAR *str, UINT32 len)
  66 {
  67     WCHAR *ret = NULL;
  68
  69     if (len)
  70     {
  71         ret = heap_alloc((len+1)*sizeof(WCHAR));
  72         if(ret)
  73         {
  74             memcpy(ret, str, len*sizeof(WCHAR));
  75             ret[len] = 0;
  76         }
  77     }
  78
  79     return ret;
  80 }
  81
  82 static inline const char *debugstr_range(const DWRITE_TEXT_RANGE *range)
  83 {
  84     return wine_dbg_sprintf("%u:%u", range->startPosition, range->length);
  85 }
  86
  87 static inline unsigned short get_table_entry(const unsigned short *table, WCHAR ch)
  88 {
  89     return table[table[table[ch >> 8] + ((ch >> 4) & 0x0f)] + (ch & 0xf)];
  90 }
  91
  92 extern HRESULT convert_fontface_to_logfont(IDWriteFontFace*, LOGFONTW*) DECLSPEC_HIDDEN;
  93 extern HRESULT create_numbersubstitution(DWRITE_NUMBER_SUBSTITUTION_METHOD,const WCHAR *locale,BOOL,IDWriteNumberSubstitution**) DECLSPEC_HIDDEN;
  94 extern HRESULT create_textformat(const WCHAR*,IDWriteFontCollection*,DWRITE_FONT_WEIGHT,DWRITE_FONT_STYLE,DWRITE_FONT_STRETCH,
  95                                  FLOAT,const WCHAR*,IDWriteTextFormat**) DECLSPEC_HIDDEN;
  96 extern HRESULT create_textlayout(const WCHAR*,UINT32,IDWriteTextFormat*,FLOAT,FLOAT,IDWriteTextLayout**) DECLSPEC_HIDDEN;
  97 extern HRESULT create_trimmingsign(IDWriteInlineObject**) DECLSPEC_HIDDEN;
  98 extern HRESULT create_typography(IDWriteTypography**) DECLSPEC_HIDDEN;
  99 extern HRESULT create_gdiinterop(IDWriteFactory*,IDWriteGdiInterop**) DECLSPEC_HIDDEN;
 100 extern void    release_gdiinterop(IDWriteGdiInterop*) DECLSPEC_HIDDEN;
 101 extern HRESULT create_localizedstrings(IDWriteLocalizedStrings**) DECLSPEC_HIDDEN;
 102 extern HRESULT add_localizedstring(IDWriteLocalizedStrings*,const WCHAR*,const WCHAR*) DECLSPEC_HIDDEN;
 103 extern HRESULT clone_localizedstring(IDWriteLocalizedStrings *iface, IDWriteLocalizedStrings **strings) DECLSPEC_HIDDEN;
 104 extern HRESULT get_system_fontcollection(IDWriteFontCollection**) DECLSPEC_HIDDEN;
 105 extern HRESULT get_textanalyzer(IDWriteTextAnalyzer**) DECLSPEC_HIDDEN;
 106 extern HRESULT create_font_file(IDWriteFontFileLoader *loader, const void *reference_key, UINT32 key_size, IDWriteFontFile **font_file) DECLSPEC_HIDDEN;
 107 extern HRESULT create_localfontfileloader(IDWriteLocalFontFileLoader** iface) DECLSPEC_HIDDEN;
 108 extern HRESULT create_fontface(DWRITE_FONT_FACE_TYPE,UINT32,IDWriteFontFile* const*,UINT32,DWRITE_FONT_SIMULATIONS,IDWriteFontFace2**) DECLSPEC_HIDDEN;
 109
 110 /* Opentype font table functions */
 111 extern HRESULT opentype_analyze_font(IDWriteFontFileStream*,UINT32*,DWRITE_FONT_FILE_TYPE*,DWRITE_FONT_FACE_TYPE*,BOOL*) DECLSPEC_HIDDEN;
 112 extern HRESULT opentype_get_font_table(IDWriteFontFileStream*,DWRITE_FONT_FACE_TYPE,UINT32,UINT32,const void**,void**,UINT32*,BOOL*) DECLSPEC_HIDDEN;
 113 extern void opentype_cmap_get_glyphindex(void*,UINT32,UINT16*) DECLSPEC_HIDDEN;
 114 extern HRESULT opentype_cmap_get_unicode_ranges(void*,UINT32,DWRITE_UNICODE_RANGE*,UINT32*) DECLSPEC_HIDDEN;
 115 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;
 116 extern HRESULT opentype_get_font_strings_from_id(IDWriteFontFace2*,DWRITE_INFORMATIONAL_STRING_ID,IDWriteLocalizedStrings**) DECLSPEC_HIDDEN;
 117
 118 extern HRESULT bidi_computelevels(const WCHAR*,UINT32,UINT8,UINT8*,UINT8*) DECLSPEC_HIDDEN;
 119 extern WCHAR bidi_get_mirrored_char(WCHAR) DECLSPEC_HIDDEN;
 120
 121 /* Glyph shaping */
 122 enum SCRIPT_JUSTIFY
 123 {
 124     SCRIPT_JUSTIFY_NONE,
 125     SCRIPT_JUSTIFY_ARABIC_BLANK,
 126     SCRIPT_JUSTIFY_CHARACTER,
 127     SCRIPT_JUSTIFY_RESERVED1,
 128     SCRIPT_JUSTIFY_BLANK,
 129     SCRIPT_JUSTIFY_RESERVED2,
 130     SCRIPT_JUSTIFY_RESERVED3,
 131     SCRIPT_JUSTIFY_ARABIC_NORMAL,
 132     SCRIPT_JUSTIFY_ARABIC_KASHIDA,
 133     SCRIPT_JUSTIFY_ARABIC_ALEF,
 134     SCRIPT_JUSTIFY_ARABIC_HA,
 135     SCRIPT_JUSTIFY_ARABIC_RA,
 136     SCRIPT_JUSTIFY_ARABIC_BA,
 137     SCRIPT_JUSTIFY_ARABIC_BARA,
 138     SCRIPT_JUSTIFY_ARABIC_SEEN,
 139     SCRIPT_JUSTIFY_ARABIC_SEEN_M
 140 };
 141
 142 struct scriptshaping_cache;
 143 extern HRESULT create_scriptshaping_cache(IDWriteFontFace*,const WCHAR*,struct scriptshaping_cache**) DECLSPEC_HIDDEN;
 144 extern void release_scriptshaping_cache(struct scriptshaping_cache*) DECLSPEC_HIDDEN;
 145
 146 struct scriptshaping_ops
 147 {
 148     HRESULT (*contextual_shaping)(struct scriptshaping_cache *cache, BOOL is_rtl, const WCHAR *text, UINT32 len, UINT32 max_glyph_count,
 149                                   UINT16 *clustermap, UINT16 *glyph_indices, UINT32* actual_glyph_count);
 150     HRESULT (*set_text_glyphs_props)(struct scriptshaping_cache *cache, const WCHAR *text, UINT32 len, UINT16 *clustermap, UINT16 *glyph_indices,
 151                                      UINT32 glyphcount, DWRITE_SHAPING_TEXT_PROPERTIES *text_props, DWRITE_SHAPING_GLYPH_PROPERTIES *glyph_props);
 152 };
 153
 154 extern const struct scriptshaping_ops default_shaping_ops DECLSPEC_HIDDEN;
 155 extern const struct scriptshaping_ops latn_shaping_ops DECLSPEC_HIDDEN;