dlls/dwrite/dwrite_private.h - wine - Git at Google


            
            /*

            
             * Copyright 2012 Nikolay Sivov for CodeWeavers

            
             *

            
             * This library is free software; you can redistribute it and/or

            
             * modify it under the terms of the GNU Lesser General Public

            
             * License as published by the Free Software Foundation; either

            
             * version 2.1 of the License, or (at your option) any later version.

            
             *

            
             * This library is distributed in the hope that it will be useful,

            
             * but WITHOUT ANY WARRANTY; without even the implied warranty of

            
             * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

            
             * Lesser General Public License for more details.

            
             *

            
             * You should have received a copy of the GNU Lesser General Public

            
             * License along with this library; if not, write to the Free Software

            
             * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA

            
             */


            #include "dwrite_3.h"

            
            #include "d2d1.h"


            #include "wine/debug.h"

            
            #include "wine/list.h"

            
            #include "wine/unicode.h"


            static const DWRITE_MATRIX identity =

            
            {

            
                1.0f, 0.0f,

            
                0.0f, 1.0f,

            
                0.0f, 0.0f

            
            };


            static inline void* __WINE_ALLOC_SIZE(1) heap_alloc(size_t size)

            
            {

            
                return HeapAlloc(GetProcessHeap(), 0, size);

            
            }


            static inline void* __WINE_ALLOC_SIZE(1) heap_alloc_zero(size_t size)

            
            {

            
                return HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, size);

            
            }


            static inline void* __WINE_ALLOC_SIZE(2) heap_realloc(void *mem, size_t size)

            
            {

            
                return HeapReAlloc(GetProcessHeap(), 0, mem, size);

            
            }


            static inline void* __WINE_ALLOC_SIZE(2) heap_realloc_zero(void *mem, size_t size)

            
            {

            
                return HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, mem, size);

            
            }


            static inline BOOL heap_free(void *mem)

            
            {

            
                return HeapFree(GetProcessHeap(), 0, mem);

            
            }


            static inline LPWSTR heap_strdupW(const WCHAR *str)

            
            {

            
                LPWSTR ret = NULL;


                if(str) {

            
                    DWORD size;


                    size = (strlenW(str)+1)*sizeof(WCHAR);

            
                    ret = heap_alloc(size);

            
                    if(ret)

            
                        memcpy(ret, str, size);

            
                }


                return ret;

            
            }


            static inline LPWSTR heap_strdupnW(const WCHAR *str, UINT32 len)

            
            {

            
                WCHAR *ret = NULL;


                if (len)

            
                {

            
                    ret = heap_alloc((len+1)*sizeof(WCHAR));

            
                    if(ret)

            
                    {

            
                        memcpy(ret, str, len*sizeof(WCHAR));

            
                        ret[len] = 0;

            
                    }

            
                }


                return ret;

            
            }


            static inline const char *debugstr_range(const DWRITE_TEXT_RANGE *range)

            
            {

            
                return wine_dbg_sprintf("%u:%u", range->startPosition, range->length);

            
            }


            static inline const char *debugstr_matrix(const DWRITE_MATRIX *m)

            
            {

            
                if (!m) return "(null)";

            
                return wine_dbg_sprintf("{%.2f,%.2f,%.2f,%.2f,%.2f,%.2f}", m->m11, m->m12, m->m21, m->m22,

            
                    m->dx, m->dy);

            
            }


            const char *debugstr_sa_script(UINT16) DECLSPEC_HIDDEN;


            static inline unsigned short get_table_entry(const unsigned short *table, WCHAR ch)

            
            {

            
                return table[table[table[ch >> 8] + ((ch >> 4) & 0x0f)] + (ch & 0xf)];

            
            }


            static inline FLOAT get_scaled_advance_width(INT32 advance, FLOAT emSize, const DWRITE_FONT_METRICS *metrics)

            
            {

            
                return (FLOAT)advance * emSize / (FLOAT)metrics->designUnitsPerEm;

            
            }


            static inline BOOL is_simulation_valid(DWRITE_FONT_SIMULATIONS simulations)

            
            {

            
                return (simulations & ~(DWRITE_FONT_SIMULATIONS_NONE | DWRITE_FONT_SIMULATIONS_BOLD |

            
                    DWRITE_FONT_SIMULATIONS_OBLIQUE)) == 0;

            
            }


            struct textlayout_desc

            
            {

            
                IDWriteFactory5 *factory;

            
                const WCHAR *string;

            
                UINT32 length;

            
                IDWriteTextFormat *format;

            
                FLOAT max_width;

            
                FLOAT max_height;

            
                BOOL is_gdi_compatible;

            
                /* fields below are only meaningful for gdi-compatible layout */

            
                FLOAT ppdip;

            
                const DWRITE_MATRIX *transform;

            
                BOOL use_gdi_natural;

            
            };


            struct glyphrunanalysis_desc

            
            {

            
                const DWRITE_GLYPH_RUN *run;

            
                const DWRITE_MATRIX *transform;

            
                DWRITE_RENDERING_MODE1 rendering_mode;

            
                DWRITE_MEASURING_MODE measuring_mode;

            
                DWRITE_GRID_FIT_MODE gridfit_mode;

            
                DWRITE_TEXT_ANTIALIAS_MODE aa_mode;

            
                FLOAT origin_x;

            
                FLOAT origin_y;

            
                FLOAT ppdip;

            
            };


            struct fontface_desc

            
            {

            
                IDWriteFactory5 *factory;

            
                DWRITE_FONT_FACE_TYPE face_type;

            
                IDWriteFontFile * const *files;

            
                UINT32 files_number;

            
                UINT32 index;

            
                DWRITE_FONT_SIMULATIONS simulations;

            
                struct dwrite_font_data *font_data; /* could be NULL when face is created directly with IDWriteFactory::CreateFontFace() */

            
            };


            struct fontfacecached

            
            {

            
                struct list entry;

            
                IDWriteFontFace4 *fontface;

            
            };


            extern HRESULT create_numbersubstitution(DWRITE_NUMBER_SUBSTITUTION_METHOD,const WCHAR *locale,BOOL,IDWriteNumberSubstitution**) DECLSPEC_HIDDEN;

            
            extern HRESULT create_textformat(const WCHAR*,IDWriteFontCollection*,DWRITE_FONT_WEIGHT,DWRITE_FONT_STYLE,DWRITE_FONT_STRETCH,

            
                                             FLOAT,const WCHAR*,IDWriteTextFormat**) DECLSPEC_HIDDEN;

            
            extern HRESULT create_textlayout(const struct textlayout_desc*,IDWriteTextLayout**) DECLSPEC_HIDDEN;

            
            extern HRESULT create_trimmingsign(IDWriteFactory5*,IDWriteTextFormat*,IDWriteInlineObject**) DECLSPEC_HIDDEN;

            
            extern HRESULT create_typography(IDWriteTypography**) DECLSPEC_HIDDEN;

            
            extern HRESULT create_localizedstrings(IDWriteLocalizedStrings**) DECLSPEC_HIDDEN;

            
            extern HRESULT add_localizedstring(IDWriteLocalizedStrings*,const WCHAR*,const WCHAR*) DECLSPEC_HIDDEN;

            
            extern HRESULT clone_localizedstring(IDWriteLocalizedStrings *iface, IDWriteLocalizedStrings **strings) DECLSPEC_HIDDEN;

            
            extern void    set_en_localizedstring(IDWriteLocalizedStrings*,const WCHAR*) DECLSPEC_HIDDEN;

            
            extern HRESULT get_system_fontcollection(IDWriteFactory5*,IDWriteFontCollection1**) DECLSPEC_HIDDEN;

            
            extern HRESULT get_eudc_fontcollection(IDWriteFactory5*,IDWriteFontCollection1**) DECLSPEC_HIDDEN;

            
            extern IDWriteTextAnalyzer *get_text_analyzer(void) DECLSPEC_HIDDEN;

            
            extern HRESULT create_font_file(IDWriteFontFileLoader *loader, const void *reference_key, UINT32 key_size, IDWriteFontFile **font_file) DECLSPEC_HIDDEN;

            
            extern void    init_local_fontfile_loader(void) DECLSPEC_HIDDEN;

            
            extern IDWriteFontFileLoader *get_local_fontfile_loader(void) DECLSPEC_HIDDEN;

            
            extern HRESULT create_fontface(const struct fontface_desc*,struct list*,IDWriteFontFace4**) DECLSPEC_HIDDEN;

            
            extern HRESULT create_font_collection(IDWriteFactory5*,IDWriteFontFileEnumerator*,BOOL,IDWriteFontCollection1**) DECLSPEC_HIDDEN;

            
            extern HRESULT create_glyphrunanalysis(const struct glyphrunanalysis_desc*,IDWriteGlyphRunAnalysis**) DECLSPEC_HIDDEN;

            
            extern BOOL    is_system_collection(IDWriteFontCollection*) DECLSPEC_HIDDEN;

            
            extern HRESULT get_local_refkey(const WCHAR*,const FILETIME*,void**,UINT32*) DECLSPEC_HIDDEN;

            
            extern HRESULT get_filestream_from_file(IDWriteFontFile*,IDWriteFontFileStream**) DECLSPEC_HIDDEN;

            
            extern BOOL    is_face_type_supported(DWRITE_FONT_FACE_TYPE) DECLSPEC_HIDDEN;

            
            extern HRESULT get_family_names_from_stream(IDWriteFontFileStream*,UINT32,DWRITE_FONT_FACE_TYPE,IDWriteLocalizedStrings**) DECLSPEC_HIDDEN;

            
            extern HRESULT create_colorglyphenum(FLOAT,FLOAT,const DWRITE_GLYPH_RUN*,const DWRITE_GLYPH_RUN_DESCRIPTION*,DWRITE_MEASURING_MODE,

            
                const DWRITE_MATRIX*,UINT32,IDWriteColorGlyphRunEnumerator**) DECLSPEC_HIDDEN;

            
            extern BOOL lb_is_newline_char(WCHAR) DECLSPEC_HIDDEN;

            
            extern HRESULT create_system_fontfallback(IDWriteFactory5*,IDWriteFontFallback**) DECLSPEC_HIDDEN;

            
            extern void    release_system_fontfallback(IDWriteFontFallback*) DECLSPEC_HIDDEN;

            
            extern HRESULT create_fontfallback_builder(IDWriteFactory5*,IDWriteFontFallbackBuilder**) DECLSPEC_HIDDEN;

            
            extern HRESULT create_matching_font(IDWriteFontCollection*,const WCHAR*,DWRITE_FONT_WEIGHT,DWRITE_FONT_STYLE,DWRITE_FONT_STRETCH,

            
                IDWriteFont**) DECLSPEC_HIDDEN;

            
            extern HRESULT create_fontfacereference(IDWriteFactory5*,IDWriteFontFile*,UINT32,DWRITE_FONT_SIMULATIONS,

            
                IDWriteFontFaceReference**) DECLSPEC_HIDDEN;

            
            extern HRESULT factory_get_cached_fontface(IDWriteFactory5*,IDWriteFontFile*const*,UINT32,DWRITE_FONT_SIMULATIONS,

            
                    struct list**,REFIID,void**) DECLSPEC_HIDDEN;

            
            extern void factory_detach_fontcollection(IDWriteFactory5*,IDWriteFontCollection1*) DECLSPEC_HIDDEN;

            
            extern void factory_detach_gdiinterop(IDWriteFactory5*,IDWriteGdiInterop1*) DECLSPEC_HIDDEN;

            
            extern struct fontfacecached *factory_cache_fontface(IDWriteFactory5*,struct list*,IDWriteFontFace4*) DECLSPEC_HIDDEN;

            
            extern void    get_logfont_from_font(IDWriteFont*,LOGFONTW*) DECLSPEC_HIDDEN;

            
            extern void    get_logfont_from_fontface(IDWriteFontFace*,LOGFONTW*) DECLSPEC_HIDDEN;

            
            extern HRESULT get_fontsig_from_font(IDWriteFont*,FONTSIGNATURE*) DECLSPEC_HIDDEN;

            
            extern HRESULT get_fontsig_from_fontface(IDWriteFontFace*,FONTSIGNATURE*) DECLSPEC_HIDDEN;

            
            extern HRESULT create_gdiinterop(IDWriteFactory5*,IDWriteGdiInterop1**) DECLSPEC_HIDDEN;

            
            extern void fontface_detach_from_cache(IDWriteFontFace4*) DECLSPEC_HIDDEN;

            
            extern void factory_lock(IDWriteFactory5*) DECLSPEC_HIDDEN;

            
            extern void factory_unlock(IDWriteFactory5*) DECLSPEC_HIDDEN;


            /* Opentype font table functions */

            
            struct dwrite_font_props {

            
                DWRITE_FONT_STYLE style;

            
                DWRITE_FONT_STRETCH stretch;

            
                DWRITE_FONT_WEIGHT weight;

            
                DWRITE_PANOSE panose;

            
                FONTSIGNATURE fontsig;

            
                LOGFONTW lf;

            
            };


            struct file_stream_desc {

            
                IDWriteFontFileStream *stream;

            
                DWRITE_FONT_FACE_TYPE face_type;

            
                UINT32 face_index;

            
            };


            extern HRESULT opentype_analyze_font(IDWriteFontFileStream*,UINT32*,DWRITE_FONT_FILE_TYPE*,DWRITE_FONT_FACE_TYPE*,BOOL*) DECLSPEC_HIDDEN;

            
            extern HRESULT opentype_get_font_table(struct file_stream_desc*,UINT32,const void**,void**,UINT32*,BOOL*) DECLSPEC_HIDDEN;

            
            extern HRESULT opentype_cmap_get_unicode_ranges(void*,UINT32,DWRITE_UNICODE_RANGE*,UINT32*) DECLSPEC_HIDDEN;

            
            extern void opentype_get_font_properties(struct file_stream_desc*,struct dwrite_font_props*) DECLSPEC_HIDDEN;

            
            extern void opentype_get_font_metrics(struct file_stream_desc*,DWRITE_FONT_METRICS1*,DWRITE_CARET_METRICS*) DECLSPEC_HIDDEN;

            
            extern HRESULT opentype_get_font_info_strings(const void*,DWRITE_INFORMATIONAL_STRING_ID,IDWriteLocalizedStrings**) DECLSPEC_HIDDEN;

            
            extern HRESULT opentype_get_font_familyname(struct file_stream_desc*,IDWriteLocalizedStrings**) DECLSPEC_HIDDEN;

            
            extern HRESULT opentype_get_font_facename(struct file_stream_desc*,WCHAR*,IDWriteLocalizedStrings**) DECLSPEC_HIDDEN;

            
            extern HRESULT opentype_get_typographic_features(IDWriteFontFace*,UINT32,UINT32,UINT32,UINT32*,DWRITE_FONT_FEATURE_TAG*) DECLSPEC_HIDDEN;

            
            extern BOOL opentype_get_vdmx_size(const void*,INT,UINT16*,UINT16*) DECLSPEC_HIDDEN;

            
            extern UINT32 opentype_get_cpal_palettecount(const void*) DECLSPEC_HIDDEN;

            
            extern UINT32 opentype_get_cpal_paletteentrycount(const void*) DECLSPEC_HIDDEN;

            
            extern HRESULT opentype_get_cpal_entries(const void*,UINT32,UINT32,UINT32,DWRITE_COLOR_F*) DECLSPEC_HIDDEN;

            
            extern BOOL opentype_has_vertical_variants(IDWriteFontFace4*) DECLSPEC_HIDDEN;

            
            extern UINT32 opentype_get_glyph_image_formats(IDWriteFontFace4*) DECLSPEC_HIDDEN;


            struct dwrite_colorglyph {

            
                USHORT layer; /* [0, num_layers) index indicating current layer */

            
                /* base glyph record data, set once on initialization */

            
                USHORT first_layer;

            
                USHORT num_layers;

            
                /* current layer record data, updated every time glyph is switched to next layer */

            
                UINT16 glyph;

            
                UINT16 palette_index;

            
            };


            extern HRESULT opentype_get_colr_glyph(const void*,UINT16,struct dwrite_colorglyph*) DECLSPEC_HIDDEN;

            
            extern void opentype_colr_next_glyph(const void*,struct dwrite_colorglyph*) DECLSPEC_HIDDEN;


            enum gasp_flags {

            
                GASP_GRIDFIT             = 0x0001,

            
                GASP_DOGRAY              = 0x0002,

            
                GASP_SYMMETRIC_GRIDFIT   = 0x0004,

            
                GASP_SYMMETRIC_SMOOTHING = 0x0008,

            
            };


            extern WORD opentype_get_gasp_flags(const WORD*,UINT32,INT) DECLSPEC_HIDDEN;


            /* BiDi helpers */

            
            extern HRESULT bidi_computelevels(const WCHAR*,UINT32,UINT8,UINT8*,UINT8*) DECLSPEC_HIDDEN;

            
            extern WCHAR bidi_get_mirrored_char(WCHAR) DECLSPEC_HIDDEN;


            /* FreeType integration */

            
            struct dwrite_glyphbitmap {

            
                IDWriteFontFace4 *fontface;

            
                DWORD simulations;

            
                FLOAT emsize;

            
                BOOL nohint;

            
                BOOL aliased;

            
                UINT16 index;

            
                INT pitch;

            
                RECT bbox;

            
                BYTE *buf;

            
                DWRITE_MATRIX *m;

            
            };


            extern BOOL init_freetype(void) DECLSPEC_HIDDEN;

            
            extern void release_freetype(void) DECLSPEC_HIDDEN;

            
            extern HRESULT freetype_get_design_glyph_metrics(IDWriteFontFace4*,UINT16,UINT16,DWRITE_GLYPH_METRICS*) DECLSPEC_HIDDEN;

            
            extern void freetype_notify_cacheremove(IDWriteFontFace4*) DECLSPEC_HIDDEN;

            
            extern BOOL freetype_is_monospaced(IDWriteFontFace4*) DECLSPEC_HIDDEN;

            
            extern HRESULT freetype_get_glyphrun_outline(IDWriteFontFace4*,FLOAT,UINT16 const*,FLOAT const*, DWRITE_GLYPH_OFFSET const*,

            
                UINT32,BOOL,IDWriteGeometrySink*) DECLSPEC_HIDDEN;

            
            extern UINT16 freetype_get_glyphcount(IDWriteFontFace4*) DECLSPEC_HIDDEN;

            
            extern void freetype_get_glyphs(IDWriteFontFace4*,INT,UINT32 const*,UINT32,UINT16*) DECLSPEC_HIDDEN;

            
            extern BOOL freetype_has_kerning_pairs(IDWriteFontFace4*) DECLSPEC_HIDDEN;

            
            extern INT32 freetype_get_kerning_pair_adjustment(IDWriteFontFace4*,UINT16,UINT16) DECLSPEC_HIDDEN;

            
            extern void freetype_get_glyph_bbox(struct dwrite_glyphbitmap*) DECLSPEC_HIDDEN;

            
            extern BOOL freetype_get_glyph_bitmap(struct dwrite_glyphbitmap*) DECLSPEC_HIDDEN;

            
            extern INT freetype_get_charmap_index(IDWriteFontFace4*,BOOL*) DECLSPEC_HIDDEN;

            
            extern INT32 freetype_get_glyph_advance(IDWriteFontFace4*,FLOAT,UINT16,DWRITE_MEASURING_MODE,BOOL*) DECLSPEC_HIDDEN;

            
            extern void freetype_get_design_glyph_bbox(IDWriteFontFace4*,UINT16,UINT16,RECT*) DECLSPEC_HIDDEN;


            /* Glyph shaping */

            
            enum SCRIPT_JUSTIFY

            
            {

            
                SCRIPT_JUSTIFY_NONE,

            
                SCRIPT_JUSTIFY_ARABIC_BLANK,

            
                SCRIPT_JUSTIFY_CHARACTER,

            
                SCRIPT_JUSTIFY_RESERVED1,

            
                SCRIPT_JUSTIFY_BLANK,

            
                SCRIPT_JUSTIFY_RESERVED2,

            
                SCRIPT_JUSTIFY_RESERVED3,

            
                SCRIPT_JUSTIFY_ARABIC_NORMAL,

            
                SCRIPT_JUSTIFY_ARABIC_KASHIDA,

            
                SCRIPT_JUSTIFY_ARABIC_ALEF,

            
                SCRIPT_JUSTIFY_ARABIC_HA,

            
                SCRIPT_JUSTIFY_ARABIC_RA,

            
                SCRIPT_JUSTIFY_ARABIC_BA,

            
                SCRIPT_JUSTIFY_ARABIC_BARA,

            
                SCRIPT_JUSTIFY_ARABIC_SEEN,

            
                SCRIPT_JUSTIFY_ARABIC_SEEN_M

            
            };


            struct scriptshaping_cache;


            struct scriptshaping_context

            
            {

            
                struct scriptshaping_cache *cache;

            
                UINT32 language_tag;


                const WCHAR *text;

            
                UINT32 length;

            
                BOOL is_rtl;


                UINT32 max_glyph_count;

            
            };


            extern HRESULT create_scriptshaping_cache(IDWriteFontFace*,struct scriptshaping_cache**) DECLSPEC_HIDDEN;

            
            extern void release_scriptshaping_cache(struct scriptshaping_cache*) DECLSPEC_HIDDEN;


            struct scriptshaping_ops

            
            {

            
                HRESULT (*contextual_shaping)(struct scriptshaping_context *context, UINT16 *clustermap, UINT16 *glyph_indices, UINT32* actual_glyph_count);

            
                HRESULT (*set_text_glyphs_props)(struct scriptshaping_context *context, UINT16 *clustermap, UINT16 *glyph_indices,

            
                                                 UINT32 glyphcount, DWRITE_SHAPING_TEXT_PROPERTIES *text_props, DWRITE_SHAPING_GLYPH_PROPERTIES *glyph_props);

            
            };


            extern const struct scriptshaping_ops default_shaping_ops DECLSPEC_HIDDEN;

            
            extern const struct scriptshaping_ops latn_shaping_ops DECLSPEC_HIDDEN;
	/*
	* Copyright 2012 Nikolay Sivov for CodeWeavers
	*
	* This library is free software; you can redistribute it and/or
	* modify it under the terms of the GNU Lesser General Public
	* License as published by the Free Software Foundation; either
	* version 2.1 of the License, or (at your option) any later version.
	*
	* This library is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	* Lesser General Public License for more details.
	*
	* You should have received a copy of the GNU Lesser General Public
	* License along with this library; if not, write to the Free Software
	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
	*/

	#include "dwrite_3.h"
	#include "d2d1.h"

	#include "wine/debug.h"
	#include "wine/list.h"
	#include "wine/unicode.h"

	static const DWRITE_MATRIX identity =
	{
	1.0f, 0.0f,
	0.0f, 1.0f,
	0.0f, 0.0f
	};

	static inline void* __WINE_ALLOC_SIZE(1) heap_alloc(size_t size)
	{
	return HeapAlloc(GetProcessHeap(), 0, size);
	}

	static inline void* __WINE_ALLOC_SIZE(1) heap_alloc_zero(size_t size)
	{
	return HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, size);
	}

	static inline void* __WINE_ALLOC_SIZE(2) heap_realloc(void *mem, size_t size)
	{
	return HeapReAlloc(GetProcessHeap(), 0, mem, size);
	}

	static inline void* __WINE_ALLOC_SIZE(2) heap_realloc_zero(void *mem, size_t size)
	{
	return HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, mem, size);
	}

	static inline BOOL heap_free(void *mem)
	{
	return HeapFree(GetProcessHeap(), 0, mem);
	}

	static inline LPWSTR heap_strdupW(const WCHAR *str)
	{
	LPWSTR ret = NULL;

	if(str) {
	DWORD size;

	size = (strlenW(str)+1)*sizeof(WCHAR);
	ret = heap_alloc(size);
	if(ret)
	memcpy(ret, str, size);
	}

	return ret;
	}

	static inline LPWSTR heap_strdupnW(const WCHAR *str, UINT32 len)
	{
	WCHAR *ret = NULL;

	if (len)
	{
	ret = heap_alloc((len+1)*sizeof(WCHAR));
	if(ret)
	{
	memcpy(ret, str, len*sizeof(WCHAR));
	ret[len] = 0;
	}
	}

	return ret;
	}

	static inline const char debugstr_range(const DWRITE_TEXT_RANGE range)
	{
	return wine_dbg_sprintf("%u:%u", range->startPosition, range->length);
	}

	static inline const char debugstr_matrix(const DWRITE_MATRIX m)
	{
	if (!m) return "(null)";
	return wine_dbg_sprintf("{%.2f,%.2f,%.2f,%.2f,%.2f,%.2f}", m->m11, m->m12, m->m21, m->m22,
	m->dx, m->dy);
	}

	const char *debugstr_sa_script(UINT16) DECLSPEC_HIDDEN;

	static inline unsigned short get_table_entry(const unsigned short *table, WCHAR ch)
	{
	return table[table[table[ch >> 8] + ((ch >> 4) & 0x0f)] + (ch & 0xf)];
	}

	static inline FLOAT get_scaled_advance_width(INT32 advance, FLOAT emSize, const DWRITE_FONT_METRICS *metrics)
	{
	return (FLOAT)advance * emSize / (FLOAT)metrics->designUnitsPerEm;
	}

	static inline BOOL is_simulation_valid(DWRITE_FONT_SIMULATIONS simulations)
	{
	return (simulations & ~(DWRITE_FONT_SIMULATIONS_NONE \| DWRITE_FONT_SIMULATIONS_BOLD \|
	DWRITE_FONT_SIMULATIONS_OBLIQUE)) == 0;
	}

	struct textlayout_desc
	{
	IDWriteFactory5 *factory;
	const WCHAR *string;
	UINT32 length;
	IDWriteTextFormat *format;
	FLOAT max_width;
	FLOAT max_height;
	BOOL is_gdi_compatible;
	/* fields below are only meaningful for gdi-compatible layout */
	FLOAT ppdip;
	const DWRITE_MATRIX *transform;
	BOOL use_gdi_natural;
	};

	struct glyphrunanalysis_desc
	{
	const DWRITE_GLYPH_RUN *run;
	const DWRITE_MATRIX *transform;
	DWRITE_RENDERING_MODE1 rendering_mode;
	DWRITE_MEASURING_MODE measuring_mode;
	DWRITE_GRID_FIT_MODE gridfit_mode;
	DWRITE_TEXT_ANTIALIAS_MODE aa_mode;
	FLOAT origin_x;
	FLOAT origin_y;
	FLOAT ppdip;
	};

	struct fontface_desc
	{
	IDWriteFactory5 *factory;
	DWRITE_FONT_FACE_TYPE face_type;
	IDWriteFontFile * const *files;
	UINT32 files_number;
	UINT32 index;
	DWRITE_FONT_SIMULATIONS simulations;
	struct dwrite_font_data font_data; / could be NULL when face is created directly with IDWriteFactory::CreateFontFace() */
	};

	struct fontfacecached
	{
	struct list entry;
	IDWriteFontFace4 *fontface;
	};

	extern HRESULT create_numbersubstitution(DWRITE_NUMBER_SUBSTITUTION_METHOD,const WCHAR locale,BOOL,IDWriteNumberSubstitution*) DECLSPEC_HIDDEN;
	extern HRESULT create_textformat(const WCHAR,IDWriteFontCollection,DWRITE_FONT_WEIGHT,DWRITE_FONT_STYLE,DWRITE_FONT_STRETCH,
	FLOAT,const WCHAR,IDWriteTextFormat*) DECLSPEC_HIDDEN;
	extern HRESULT create_textlayout(const struct textlayout_desc,IDWriteTextLayout*) DECLSPEC_HIDDEN;
	extern HRESULT create_trimmingsign(IDWriteFactory5,IDWriteTextFormat,IDWriteInlineObject**) DECLSPEC_HIDDEN;
	extern HRESULT create_typography(IDWriteTypography**) DECLSPEC_HIDDEN;
	extern HRESULT create_localizedstrings(IDWriteLocalizedStrings**) DECLSPEC_HIDDEN;
	extern HRESULT add_localizedstring(IDWriteLocalizedStrings,const WCHAR,const WCHAR*) DECLSPEC_HIDDEN;
	extern HRESULT clone_localizedstring(IDWriteLocalizedStrings iface, IDWriteLocalizedStrings *strings) DECLSPEC_HIDDEN;
	extern void set_en_localizedstring(IDWriteLocalizedStrings,const WCHAR) DECLSPEC_HIDDEN;
	extern HRESULT get_system_fontcollection(IDWriteFactory5,IDWriteFontCollection1*) DECLSPEC_HIDDEN;
	extern HRESULT get_eudc_fontcollection(IDWriteFactory5,IDWriteFontCollection1*) DECLSPEC_HIDDEN;
	extern IDWriteTextAnalyzer *get_text_analyzer(void) DECLSPEC_HIDDEN;
	extern HRESULT create_font_file(IDWriteFontFileLoader loader, const void reference_key, UINT32 key_size, IDWriteFontFile **font_file) DECLSPEC_HIDDEN;
	extern void init_local_fontfile_loader(void) DECLSPEC_HIDDEN;
	extern IDWriteFontFileLoader *get_local_fontfile_loader(void) DECLSPEC_HIDDEN;
	extern HRESULT create_fontface(const struct fontface_desc,struct list,IDWriteFontFace4**) DECLSPEC_HIDDEN;
	extern HRESULT create_font_collection(IDWriteFactory5,IDWriteFontFileEnumerator,BOOL,IDWriteFontCollection1**) DECLSPEC_HIDDEN;
	extern HRESULT create_glyphrunanalysis(const struct glyphrunanalysis_desc,IDWriteGlyphRunAnalysis*) DECLSPEC_HIDDEN;
	extern BOOL is_system_collection(IDWriteFontCollection*) DECLSPEC_HIDDEN;
	extern HRESULT get_local_refkey(const WCHAR,const FILETIME,void*,UINT32) DECLSPEC_HIDDEN;
	extern HRESULT get_filestream_from_file(IDWriteFontFile,IDWriteFontFileStream*) DECLSPEC_HIDDEN;
	extern BOOL is_face_type_supported(DWRITE_FONT_FACE_TYPE) DECLSPEC_HIDDEN;
	extern HRESULT get_family_names_from_stream(IDWriteFontFileStream,UINT32,DWRITE_FONT_FACE_TYPE,IDWriteLocalizedStrings*) DECLSPEC_HIDDEN;
	extern HRESULT create_colorglyphenum(FLOAT,FLOAT,const DWRITE_GLYPH_RUN,const DWRITE_GLYPH_RUN_DESCRIPTION,DWRITE_MEASURING_MODE,
	const DWRITE_MATRIX,UINT32,IDWriteColorGlyphRunEnumerator*) DECLSPEC_HIDDEN;
	extern BOOL lb_is_newline_char(WCHAR) DECLSPEC_HIDDEN;
	extern HRESULT create_system_fontfallback(IDWriteFactory5,IDWriteFontFallback*) DECLSPEC_HIDDEN;
	extern void release_system_fontfallback(IDWriteFontFallback*) DECLSPEC_HIDDEN;
	extern HRESULT create_fontfallback_builder(IDWriteFactory5,IDWriteFontFallbackBuilder*) DECLSPEC_HIDDEN;
	extern HRESULT create_matching_font(IDWriteFontCollection,const WCHAR,DWRITE_FONT_WEIGHT,DWRITE_FONT_STYLE,DWRITE_FONT_STRETCH,
	IDWriteFont**) DECLSPEC_HIDDEN;
	extern HRESULT create_fontfacereference(IDWriteFactory5,IDWriteFontFile,UINT32,DWRITE_FONT_SIMULATIONS,
	IDWriteFontFaceReference**) DECLSPEC_HIDDEN;
	extern HRESULT factory_get_cached_fontface(IDWriteFactory5,IDWriteFontFileconst*,UINT32,DWRITE_FONT_SIMULATIONS,
	struct list,REFIID,void) DECLSPEC_HIDDEN;
	extern void factory_detach_fontcollection(IDWriteFactory5,IDWriteFontCollection1) DECLSPEC_HIDDEN;
	extern void factory_detach_gdiinterop(IDWriteFactory5,IDWriteGdiInterop1) DECLSPEC_HIDDEN;
	extern struct fontfacecached factory_cache_fontface(IDWriteFactory5,struct list,IDWriteFontFace4) DECLSPEC_HIDDEN;
	extern void get_logfont_from_font(IDWriteFont,LOGFONTW) DECLSPEC_HIDDEN;
	extern void get_logfont_from_fontface(IDWriteFontFace,LOGFONTW) DECLSPEC_HIDDEN;
	extern HRESULT get_fontsig_from_font(IDWriteFont,FONTSIGNATURE) DECLSPEC_HIDDEN;
	extern HRESULT get_fontsig_from_fontface(IDWriteFontFace,FONTSIGNATURE) DECLSPEC_HIDDEN;
	extern HRESULT create_gdiinterop(IDWriteFactory5,IDWriteGdiInterop1*) DECLSPEC_HIDDEN;
	extern void fontface_detach_from_cache(IDWriteFontFace4*) DECLSPEC_HIDDEN;
	extern void factory_lock(IDWriteFactory5*) DECLSPEC_HIDDEN;
	extern void factory_unlock(IDWriteFactory5*) DECLSPEC_HIDDEN;

	/* Opentype font table functions */
	struct dwrite_font_props {
	DWRITE_FONT_STYLE style;
	DWRITE_FONT_STRETCH stretch;
	DWRITE_FONT_WEIGHT weight;
	DWRITE_PANOSE panose;
	FONTSIGNATURE fontsig;
	LOGFONTW lf;
	};

	struct file_stream_desc {
	IDWriteFontFileStream *stream;
	DWRITE_FONT_FACE_TYPE face_type;
	UINT32 face_index;
	};

	extern HRESULT opentype_analyze_font(IDWriteFontFileStream,UINT32,DWRITE_FONT_FILE_TYPE,DWRITE_FONT_FACE_TYPE,BOOL*) DECLSPEC_HIDDEN;
	extern HRESULT opentype_get_font_table(struct file_stream_desc,UINT32,const void,void,UINT32,BOOL*) DECLSPEC_HIDDEN;
	extern HRESULT opentype_cmap_get_unicode_ranges(void,UINT32,DWRITE_UNICODE_RANGE,UINT32*) DECLSPEC_HIDDEN;
	extern void opentype_get_font_properties(struct file_stream_desc,struct dwrite_font_props) DECLSPEC_HIDDEN;
	extern void opentype_get_font_metrics(struct file_stream_desc,DWRITE_FONT_METRICS1,DWRITE_CARET_METRICS*) DECLSPEC_HIDDEN;
	extern HRESULT opentype_get_font_info_strings(const void,DWRITE_INFORMATIONAL_STRING_ID,IDWriteLocalizedStrings*) DECLSPEC_HIDDEN;
	extern HRESULT opentype_get_font_familyname(struct file_stream_desc,IDWriteLocalizedStrings*) DECLSPEC_HIDDEN;
	extern HRESULT opentype_get_font_facename(struct file_stream_desc,WCHAR,IDWriteLocalizedStrings**) DECLSPEC_HIDDEN;
	extern HRESULT opentype_get_typographic_features(IDWriteFontFace,UINT32,UINT32,UINT32,UINT32,DWRITE_FONT_FEATURE_TAG*) DECLSPEC_HIDDEN;
	extern BOOL opentype_get_vdmx_size(const void,INT,UINT16,UINT16*) DECLSPEC_HIDDEN;
	extern UINT32 opentype_get_cpal_palettecount(const void*) DECLSPEC_HIDDEN;
	extern UINT32 opentype_get_cpal_paletteentrycount(const void*) DECLSPEC_HIDDEN;
	extern HRESULT opentype_get_cpal_entries(const void,UINT32,UINT32,UINT32,DWRITE_COLOR_F) DECLSPEC_HIDDEN;
	extern BOOL opentype_has_vertical_variants(IDWriteFontFace4*) DECLSPEC_HIDDEN;
	extern UINT32 opentype_get_glyph_image_formats(IDWriteFontFace4*) DECLSPEC_HIDDEN;

	struct dwrite_colorglyph {
	USHORT layer; /* [0, num_layers) index indicating current layer */
	/* base glyph record data, set once on initialization */
	USHORT first_layer;
	USHORT num_layers;
	/* current layer record data, updated every time glyph is switched to next layer */
	UINT16 glyph;
	UINT16 palette_index;
	};

	extern HRESULT opentype_get_colr_glyph(const void,UINT16,struct dwrite_colorglyph) DECLSPEC_HIDDEN;
	extern void opentype_colr_next_glyph(const void,struct dwrite_colorglyph) DECLSPEC_HIDDEN;

	enum gasp_flags {
	GASP_GRIDFIT = 0x0001,
	GASP_DOGRAY = 0x0002,
	GASP_SYMMETRIC_GRIDFIT = 0x0004,
	GASP_SYMMETRIC_SMOOTHING = 0x0008,
	};

	extern WORD opentype_get_gasp_flags(const WORD*,UINT32,INT) DECLSPEC_HIDDEN;

	/* BiDi helpers */
	extern HRESULT bidi_computelevels(const WCHAR,UINT32,UINT8,UINT8,UINT8*) DECLSPEC_HIDDEN;
	extern WCHAR bidi_get_mirrored_char(WCHAR) DECLSPEC_HIDDEN;

	/* FreeType integration */
	struct dwrite_glyphbitmap {
	IDWriteFontFace4 *fontface;
	DWORD simulations;
	FLOAT emsize;
	BOOL nohint;
	BOOL aliased;
	UINT16 index;
	INT pitch;
	RECT bbox;
	BYTE *buf;
	DWRITE_MATRIX *m;
	};

	extern BOOL init_freetype(void) DECLSPEC_HIDDEN;
	extern void release_freetype(void) DECLSPEC_HIDDEN;
	extern HRESULT freetype_get_design_glyph_metrics(IDWriteFontFace4,UINT16,UINT16,DWRITE_GLYPH_METRICS) DECLSPEC_HIDDEN;
	extern void freetype_notify_cacheremove(IDWriteFontFace4*) DECLSPEC_HIDDEN;
	extern BOOL freetype_is_monospaced(IDWriteFontFace4*) DECLSPEC_HIDDEN;
	extern HRESULT freetype_get_glyphrun_outline(IDWriteFontFace4,FLOAT,UINT16 const,FLOAT const, DWRITE_GLYPH_OFFSET const,
	UINT32,BOOL,IDWriteGeometrySink*) DECLSPEC_HIDDEN;
	extern UINT16 freetype_get_glyphcount(IDWriteFontFace4*) DECLSPEC_HIDDEN;
	extern void freetype_get_glyphs(IDWriteFontFace4,INT,UINT32 const,UINT32,UINT16*) DECLSPEC_HIDDEN;
	extern BOOL freetype_has_kerning_pairs(IDWriteFontFace4*) DECLSPEC_HIDDEN;
	extern INT32 freetype_get_kerning_pair_adjustment(IDWriteFontFace4*,UINT16,UINT16) DECLSPEC_HIDDEN;
	extern void freetype_get_glyph_bbox(struct dwrite_glyphbitmap*) DECLSPEC_HIDDEN;
	extern BOOL freetype_get_glyph_bitmap(struct dwrite_glyphbitmap*) DECLSPEC_HIDDEN;
	extern INT freetype_get_charmap_index(IDWriteFontFace4,BOOL) DECLSPEC_HIDDEN;
	extern INT32 freetype_get_glyph_advance(IDWriteFontFace4,FLOAT,UINT16,DWRITE_MEASURING_MODE,BOOL) DECLSPEC_HIDDEN;
	extern void freetype_get_design_glyph_bbox(IDWriteFontFace4,UINT16,UINT16,RECT) DECLSPEC_HIDDEN;

	/* Glyph shaping */
	enum SCRIPT_JUSTIFY
	{
	SCRIPT_JUSTIFY_NONE,
	SCRIPT_JUSTIFY_ARABIC_BLANK,
	SCRIPT_JUSTIFY_CHARACTER,
	SCRIPT_JUSTIFY_RESERVED1,
	SCRIPT_JUSTIFY_BLANK,
	SCRIPT_JUSTIFY_RESERVED2,
	SCRIPT_JUSTIFY_RESERVED3,
	SCRIPT_JUSTIFY_ARABIC_NORMAL,
	SCRIPT_JUSTIFY_ARABIC_KASHIDA,
	SCRIPT_JUSTIFY_ARABIC_ALEF,
	SCRIPT_JUSTIFY_ARABIC_HA,
	SCRIPT_JUSTIFY_ARABIC_RA,
	SCRIPT_JUSTIFY_ARABIC_BA,
	SCRIPT_JUSTIFY_ARABIC_BARA,
	SCRIPT_JUSTIFY_ARABIC_SEEN,
	SCRIPT_JUSTIFY_ARABIC_SEEN_M
	};

	struct scriptshaping_cache;

	struct scriptshaping_context
	{
	struct scriptshaping_cache *cache;
	UINT32 language_tag;

	const WCHAR *text;
	UINT32 length;
	BOOL is_rtl;

	UINT32 max_glyph_count;
	};

	extern HRESULT create_scriptshaping_cache(IDWriteFontFace,struct scriptshaping_cache*) DECLSPEC_HIDDEN;
	extern void release_scriptshaping_cache(struct scriptshaping_cache*) DECLSPEC_HIDDEN;

	struct scriptshaping_ops
	{
	HRESULT (contextual_shaping)(struct scriptshaping_context context, UINT16 clustermap, UINT16 glyph_indices, UINT32* actual_glyph_count);
	HRESULT (set_text_glyphs_props)(struct scriptshaping_context context, UINT16 clustermap, UINT16 glyph_indices,
	UINT32 glyphcount, DWRITE_SHAPING_TEXT_PROPERTIES text_props, DWRITE_SHAPING_GLYPH_PROPERTIES glyph_props);
	};

	extern const struct scriptshaping_ops default_shaping_ops DECLSPEC_HIDDEN;
	extern const struct scriptshaping_ops latn_shaping_ops DECLSPEC_HIDDEN;