994 lines
29 KiB
C
994 lines
29 KiB
C
/*
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* FreeType integration
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*
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* Copyright 2014-2017 Nikolay Sivov for CodeWeavers
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#define COBJMACROS
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#include "config.h"
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#include "wine/port.h"
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#ifdef HAVE_FT2BUILD_H
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#include <ft2build.h>
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#include FT_CACHE_H
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#include FT_FREETYPE_H
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#include FT_OUTLINE_H
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#include FT_TRUETYPE_TABLES_H
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#endif /* HAVE_FT2BUILD_H */
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#include "windef.h"
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#include "wine/library.h"
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#include "wine/debug.h"
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#include "dwrite_private.h"
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WINE_DEFAULT_DEBUG_CHANNEL(dwrite);
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#ifdef HAVE_FREETYPE
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static CRITICAL_SECTION freetype_cs;
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static CRITICAL_SECTION_DEBUG critsect_debug =
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{
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0, 0, &freetype_cs,
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{ &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
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0, 0, { (DWORD_PTR)(__FILE__ ": freetype_cs") }
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};
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static CRITICAL_SECTION freetype_cs = { &critsect_debug, -1, 0, 0, 0, 0 };
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static void *ft_handle = NULL;
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static FT_Library library = 0;
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static FTC_Manager cache_manager = 0;
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static FTC_CMapCache cmap_cache = 0;
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static FTC_ImageCache image_cache = 0;
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typedef struct
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{
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FT_Int major;
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FT_Int minor;
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FT_Int patch;
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} FT_Version_t;
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#define MAKE_FUNCPTR(f) static typeof(f) * p##f = NULL
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MAKE_FUNCPTR(FT_Done_FreeType);
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MAKE_FUNCPTR(FT_Done_Glyph);
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MAKE_FUNCPTR(FT_Get_First_Char);
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MAKE_FUNCPTR(FT_Get_Kerning);
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MAKE_FUNCPTR(FT_Get_Sfnt_Table);
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MAKE_FUNCPTR(FT_Glyph_Copy);
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MAKE_FUNCPTR(FT_Glyph_Get_CBox);
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MAKE_FUNCPTR(FT_Glyph_Transform);
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MAKE_FUNCPTR(FT_Init_FreeType);
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MAKE_FUNCPTR(FT_Library_Version);
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MAKE_FUNCPTR(FT_Load_Glyph);
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MAKE_FUNCPTR(FT_Matrix_Multiply);
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MAKE_FUNCPTR(FT_New_Memory_Face);
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MAKE_FUNCPTR(FT_Outline_Copy);
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MAKE_FUNCPTR(FT_Outline_Decompose);
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MAKE_FUNCPTR(FT_Outline_Done);
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MAKE_FUNCPTR(FT_Outline_Embolden);
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MAKE_FUNCPTR(FT_Outline_Get_Bitmap);
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MAKE_FUNCPTR(FT_Outline_New);
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MAKE_FUNCPTR(FT_Outline_Transform);
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MAKE_FUNCPTR(FT_Outline_Translate);
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MAKE_FUNCPTR(FTC_CMapCache_Lookup);
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MAKE_FUNCPTR(FTC_CMapCache_New);
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MAKE_FUNCPTR(FTC_ImageCache_Lookup);
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MAKE_FUNCPTR(FTC_ImageCache_New);
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MAKE_FUNCPTR(FTC_Manager_New);
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MAKE_FUNCPTR(FTC_Manager_Done);
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MAKE_FUNCPTR(FTC_Manager_LookupFace);
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MAKE_FUNCPTR(FTC_Manager_LookupSize);
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MAKE_FUNCPTR(FTC_Manager_RemoveFaceID);
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#undef MAKE_FUNCPTR
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static FT_Error (*pFT_Outline_EmboldenXY)(FT_Outline *, FT_Pos, FT_Pos);
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struct face_finalizer_data
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{
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IDWriteFontFileStream *stream;
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void *context;
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};
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static void face_finalizer(void *object)
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{
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FT_Face face = object;
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struct face_finalizer_data *data = (struct face_finalizer_data *)face->generic.data;
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IDWriteFontFileStream_ReleaseFileFragment(data->stream, data->context);
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IDWriteFontFileStream_Release(data->stream);
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heap_free(data);
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}
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static FT_Error face_requester(FTC_FaceID face_id, FT_Library library, FT_Pointer request_data, FT_Face *face)
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{
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IDWriteFontFace *fontface = (IDWriteFontFace*)face_id;
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IDWriteFontFileStream *stream;
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IDWriteFontFile *file;
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const void *data_ptr;
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UINT32 index, count;
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FT_Error fterror;
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UINT64 data_size;
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void *context;
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HRESULT hr;
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*face = NULL;
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if (!fontface) {
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WARN("NULL fontface requested.\n");
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return FT_Err_Ok;
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}
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count = 1;
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hr = IDWriteFontFace_GetFiles(fontface, &count, &file);
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if (FAILED(hr))
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return FT_Err_Ok;
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hr = get_filestream_from_file(file, &stream);
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IDWriteFontFile_Release(file);
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if (FAILED(hr))
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return FT_Err_Ok;
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hr = IDWriteFontFileStream_GetFileSize(stream, &data_size);
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if (FAILED(hr)) {
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fterror = FT_Err_Invalid_Stream_Read;
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goto fail;
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}
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hr = IDWriteFontFileStream_ReadFileFragment(stream, &data_ptr, 0, data_size, &context);
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if (FAILED(hr)) {
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fterror = FT_Err_Invalid_Stream_Read;
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goto fail;
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}
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index = IDWriteFontFace_GetIndex(fontface);
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fterror = pFT_New_Memory_Face(library, data_ptr, data_size, index, face);
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if (fterror == FT_Err_Ok) {
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struct face_finalizer_data *data;
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data = heap_alloc(sizeof(*data));
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data->stream = stream;
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data->context = context;
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(*face)->generic.data = data;
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(*face)->generic.finalizer = face_finalizer;
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return fterror;
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}
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else
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IDWriteFontFileStream_ReleaseFileFragment(stream, context);
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fail:
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IDWriteFontFileStream_Release(stream);
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return fterror;
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}
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BOOL init_freetype(void)
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{
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FT_Version_t FT_Version;
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ft_handle = wine_dlopen(SONAME_LIBFREETYPE, RTLD_NOW, NULL, 0);
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if (!ft_handle) {
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WINE_MESSAGE("Wine cannot find the FreeType font library.\n");
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return FALSE;
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}
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#define LOAD_FUNCPTR(f) if((p##f = wine_dlsym(ft_handle, #f, NULL, 0)) == NULL){WARN("Can't find symbol %s\n", #f); goto sym_not_found;}
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LOAD_FUNCPTR(FT_Done_FreeType)
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LOAD_FUNCPTR(FT_Done_Glyph)
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LOAD_FUNCPTR(FT_Get_First_Char)
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LOAD_FUNCPTR(FT_Get_Kerning)
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LOAD_FUNCPTR(FT_Get_Sfnt_Table)
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LOAD_FUNCPTR(FT_Glyph_Copy)
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LOAD_FUNCPTR(FT_Glyph_Get_CBox)
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LOAD_FUNCPTR(FT_Glyph_Transform)
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LOAD_FUNCPTR(FT_Init_FreeType)
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LOAD_FUNCPTR(FT_Library_Version)
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LOAD_FUNCPTR(FT_Load_Glyph)
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LOAD_FUNCPTR(FT_Matrix_Multiply)
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LOAD_FUNCPTR(FT_New_Memory_Face)
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LOAD_FUNCPTR(FT_Outline_Copy)
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LOAD_FUNCPTR(FT_Outline_Decompose)
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LOAD_FUNCPTR(FT_Outline_Done)
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LOAD_FUNCPTR(FT_Outline_Embolden)
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LOAD_FUNCPTR(FT_Outline_Get_Bitmap)
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LOAD_FUNCPTR(FT_Outline_New)
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LOAD_FUNCPTR(FT_Outline_Transform)
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LOAD_FUNCPTR(FT_Outline_Translate)
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LOAD_FUNCPTR(FTC_CMapCache_Lookup)
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LOAD_FUNCPTR(FTC_CMapCache_New)
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LOAD_FUNCPTR(FTC_ImageCache_Lookup)
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LOAD_FUNCPTR(FTC_ImageCache_New)
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LOAD_FUNCPTR(FTC_Manager_New)
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LOAD_FUNCPTR(FTC_Manager_Done)
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LOAD_FUNCPTR(FTC_Manager_LookupFace)
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LOAD_FUNCPTR(FTC_Manager_LookupSize)
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LOAD_FUNCPTR(FTC_Manager_RemoveFaceID)
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#undef LOAD_FUNCPTR
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pFT_Outline_EmboldenXY = wine_dlsym(ft_handle, "FT_Outline_EmboldenXY", NULL, 0);
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if (pFT_Init_FreeType(&library) != 0) {
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ERR("Can't init FreeType library\n");
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wine_dlclose(ft_handle, NULL, 0);
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ft_handle = NULL;
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return FALSE;
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}
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pFT_Library_Version(library, &FT_Version.major, &FT_Version.minor, &FT_Version.patch);
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/* init cache manager */
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if (pFTC_Manager_New(library, 0, 0, 0, &face_requester, NULL, &cache_manager) != 0 ||
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pFTC_CMapCache_New(cache_manager, &cmap_cache) != 0 ||
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pFTC_ImageCache_New(cache_manager, &image_cache) != 0) {
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ERR("Failed to init FreeType cache\n");
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pFTC_Manager_Done(cache_manager);
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pFT_Done_FreeType(library);
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wine_dlclose(ft_handle, NULL, 0);
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ft_handle = NULL;
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return FALSE;
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}
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TRACE("FreeType version is %d.%d.%d\n", FT_Version.major, FT_Version.minor, FT_Version.patch);
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return TRUE;
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sym_not_found:
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WINE_MESSAGE("Wine cannot find certain functions that it needs from FreeType library.\n");
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wine_dlclose(ft_handle, NULL, 0);
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ft_handle = NULL;
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return FALSE;
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}
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void release_freetype(void)
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{
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pFTC_Manager_Done(cache_manager);
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pFT_Done_FreeType(library);
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}
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void freetype_notify_cacheremove(IDWriteFontFace4 *fontface)
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{
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EnterCriticalSection(&freetype_cs);
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pFTC_Manager_RemoveFaceID(cache_manager, fontface);
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LeaveCriticalSection(&freetype_cs);
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}
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HRESULT freetype_get_design_glyph_metrics(IDWriteFontFace4 *fontface, UINT16 unitsperEm, UINT16 glyph, DWRITE_GLYPH_METRICS *ret)
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{
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FTC_ScalerRec scaler;
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FT_Size size;
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scaler.face_id = fontface;
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scaler.width = unitsperEm;
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scaler.height = unitsperEm;
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scaler.pixel = 1;
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scaler.x_res = 0;
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scaler.y_res = 0;
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EnterCriticalSection(&freetype_cs);
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if (pFTC_Manager_LookupSize(cache_manager, &scaler, &size) == 0) {
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if (pFT_Load_Glyph(size->face, glyph, FT_LOAD_NO_SCALE) == 0) {
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USHORT simulations = IDWriteFontFace4_GetSimulations(fontface);
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FT_Glyph_Metrics *metrics = &size->face->glyph->metrics;
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ret->leftSideBearing = metrics->horiBearingX;
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ret->advanceWidth = metrics->horiAdvance;
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ret->rightSideBearing = metrics->horiAdvance - metrics->horiBearingX - metrics->width;
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ret->topSideBearing = metrics->vertBearingY;
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ret->advanceHeight = metrics->vertAdvance;
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ret->bottomSideBearing = metrics->vertAdvance - metrics->vertBearingY - metrics->height;
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ret->verticalOriginY = metrics->height + metrics->vertBearingY;
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/* Adjust in case of bold simulation, glyphs without contours are ignored. */
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if (simulations & DWRITE_FONT_SIMULATIONS_BOLD && size->face->glyph->format == FT_GLYPH_FORMAT_OUTLINE &&
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size->face->glyph->outline.n_contours != 0) {
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if (ret->advanceWidth)
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ret->advanceWidth += (unitsperEm + 49) / 50;
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}
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}
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}
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LeaveCriticalSection(&freetype_cs);
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return S_OK;
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}
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BOOL freetype_is_monospaced(IDWriteFontFace4 *fontface)
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{
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BOOL is_monospaced = FALSE;
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FT_Face face;
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EnterCriticalSection(&freetype_cs);
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if (pFTC_Manager_LookupFace(cache_manager, fontface, &face) == 0)
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is_monospaced = !!FT_IS_FIXED_WIDTH(face);
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LeaveCriticalSection(&freetype_cs);
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return is_monospaced;
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}
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struct decompose_context {
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IDWriteGeometrySink *sink;
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D2D1_POINT_2F offset;
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BOOL figure_started;
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BOOL move_to; /* last call was 'move_to' */
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FT_Vector origin; /* 'pen' position from last call */
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};
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static inline void ft_vector_to_d2d_point(const FT_Vector *v, D2D1_POINT_2F offset, D2D1_POINT_2F *p)
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{
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p->x = (v->x / 64.0f) + offset.x;
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p->y = (v->y / 64.0f) + offset.y;
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}
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static void decompose_beginfigure(struct decompose_context *ctxt)
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{
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D2D1_POINT_2F point;
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if (!ctxt->move_to)
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return;
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ft_vector_to_d2d_point(&ctxt->origin, ctxt->offset, &point);
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ID2D1SimplifiedGeometrySink_BeginFigure(ctxt->sink, point, D2D1_FIGURE_BEGIN_FILLED);
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ctxt->figure_started = TRUE;
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ctxt->move_to = FALSE;
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}
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static int decompose_move_to(const FT_Vector *to, void *user)
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{
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struct decompose_context *ctxt = (struct decompose_context*)user;
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if (ctxt->figure_started) {
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ID2D1SimplifiedGeometrySink_EndFigure(ctxt->sink, D2D1_FIGURE_END_CLOSED);
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ctxt->figure_started = FALSE;
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}
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ctxt->move_to = TRUE;
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ctxt->origin = *to;
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return 0;
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}
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static int decompose_line_to(const FT_Vector *to, void *user)
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{
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struct decompose_context *ctxt = (struct decompose_context*)user;
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D2D1_POINT_2F point;
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/* Special case for empty contours, in a way freetype returns them. */
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if (ctxt->move_to && !memcmp(to, &ctxt->origin, sizeof(*to)))
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return 0;
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decompose_beginfigure(ctxt);
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ft_vector_to_d2d_point(to, ctxt->offset, &point);
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ID2D1SimplifiedGeometrySink_AddLines(ctxt->sink, &point, 1);
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ctxt->origin = *to;
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return 0;
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}
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static int decompose_conic_to(const FT_Vector *control, const FT_Vector *to, void *user)
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{
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struct decompose_context *ctxt = (struct decompose_context*)user;
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D2D1_POINT_2F points[3];
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FT_Vector cubic[3];
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decompose_beginfigure(ctxt);
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/* convert from quadratic to cubic */
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/*
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The parametric eqn for a cubic Bezier is, from PLRM:
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r(t) = at^3 + bt^2 + ct + r0
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with the control points:
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r1 = r0 + c/3
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r2 = r1 + (c + b)/3
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r3 = r0 + c + b + a
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A quadratic Bezier has the form:
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p(t) = (1-t)^2 p0 + 2(1-t)t p1 + t^2 p2
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So equating powers of t leads to:
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r1 = 2/3 p1 + 1/3 p0
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r2 = 2/3 p1 + 1/3 p2
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and of course r0 = p0, r3 = p2
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*/
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/* r1 = 1/3 p0 + 2/3 p1
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r2 = 1/3 p2 + 2/3 p1 */
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cubic[0].x = (2 * control->x + 1) / 3;
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cubic[0].y = (2 * control->y + 1) / 3;
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cubic[1] = cubic[0];
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cubic[0].x += (ctxt->origin.x + 1) / 3;
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cubic[0].y += (ctxt->origin.y + 1) / 3;
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cubic[1].x += (to->x + 1) / 3;
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cubic[1].y += (to->y + 1) / 3;
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cubic[2] = *to;
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ft_vector_to_d2d_point(cubic, ctxt->offset, points);
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ft_vector_to_d2d_point(cubic + 1, ctxt->offset, points + 1);
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ft_vector_to_d2d_point(cubic + 2, ctxt->offset, points + 2);
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ID2D1SimplifiedGeometrySink_AddBeziers(ctxt->sink, (D2D1_BEZIER_SEGMENT*)points, 1);
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ctxt->origin = *to;
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return 0;
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}
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static int decompose_cubic_to(const FT_Vector *control1, const FT_Vector *control2,
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const FT_Vector *to, void *user)
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{
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struct decompose_context *ctxt = (struct decompose_context*)user;
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D2D1_POINT_2F points[3];
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decompose_beginfigure(ctxt);
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ft_vector_to_d2d_point(control1, ctxt->offset, points);
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ft_vector_to_d2d_point(control2, ctxt->offset, points + 1);
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ft_vector_to_d2d_point(to, ctxt->offset, points + 2);
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ID2D1SimplifiedGeometrySink_AddBeziers(ctxt->sink, (D2D1_BEZIER_SEGMENT*)points, 1);
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ctxt->origin = *to;
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return 0;
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}
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static void decompose_outline(FT_Outline *outline, D2D1_POINT_2F offset, IDWriteGeometrySink *sink)
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{
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static const FT_Outline_Funcs decompose_funcs = {
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decompose_move_to,
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decompose_line_to,
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decompose_conic_to,
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decompose_cubic_to,
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0,
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0
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};
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struct decompose_context context;
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context.sink = sink;
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context.offset = offset;
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context.figure_started = FALSE;
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context.move_to = FALSE;
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context.origin.x = 0;
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context.origin.y = 0;
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pFT_Outline_Decompose(outline, &decompose_funcs, &context);
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if (context.figure_started)
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ID2D1SimplifiedGeometrySink_EndFigure(sink, D2D1_FIGURE_END_CLOSED);
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}
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static void embolden_glyph_outline(FT_Outline *outline, FLOAT emsize)
|
|
{
|
|
FT_Pos strength;
|
|
|
|
strength = MulDiv(emsize, 1 << 6, 24);
|
|
if (pFT_Outline_EmboldenXY)
|
|
pFT_Outline_EmboldenXY(outline, strength, 0);
|
|
else
|
|
pFT_Outline_Embolden(outline, strength);
|
|
}
|
|
|
|
static void embolden_glyph(FT_Glyph glyph, FLOAT emsize)
|
|
{
|
|
FT_OutlineGlyph outline_glyph = (FT_OutlineGlyph)glyph;
|
|
|
|
if (glyph->format != FT_GLYPH_FORMAT_OUTLINE)
|
|
return;
|
|
|
|
embolden_glyph_outline(&outline_glyph->outline, emsize);
|
|
}
|
|
|
|
HRESULT freetype_get_glyphrun_outline(IDWriteFontFace4 *fontface, float emSize, UINT16 const *glyphs,
|
|
float const *advances, DWRITE_GLYPH_OFFSET const *offsets, unsigned int count, BOOL is_rtl,
|
|
IDWriteGeometrySink *sink)
|
|
{
|
|
FTC_ScalerRec scaler;
|
|
USHORT simulations;
|
|
HRESULT hr = S_OK;
|
|
FT_Size size;
|
|
|
|
if (!count)
|
|
return S_OK;
|
|
|
|
ID2D1SimplifiedGeometrySink_SetFillMode(sink, D2D1_FILL_MODE_WINDING);
|
|
|
|
simulations = IDWriteFontFace4_GetSimulations(fontface);
|
|
|
|
scaler.face_id = fontface;
|
|
scaler.width = emSize;
|
|
scaler.height = emSize;
|
|
scaler.pixel = 1;
|
|
scaler.x_res = 0;
|
|
scaler.y_res = 0;
|
|
|
|
EnterCriticalSection(&freetype_cs);
|
|
if (pFTC_Manager_LookupSize(cache_manager, &scaler, &size) == 0) {
|
|
float rtl_factor = is_rtl ? -1.0f : 1.0f;
|
|
D2D1_POINT_2F origin;
|
|
unsigned int i;
|
|
|
|
origin.x = origin.y = 0.0f;
|
|
for (i = 0; i < count; ++i)
|
|
{
|
|
if (pFT_Load_Glyph(size->face, glyphs[i], FT_LOAD_NO_BITMAP) == 0)
|
|
{
|
|
FLOAT ft_advance = size->face->glyph->metrics.horiAdvance >> 6;
|
|
FT_Outline *outline = &size->face->glyph->outline;
|
|
D2D1_POINT_2F glyph_origin;
|
|
float advance;
|
|
FT_Matrix m;
|
|
|
|
if (simulations & DWRITE_FONT_SIMULATIONS_BOLD)
|
|
embolden_glyph_outline(outline, emSize);
|
|
|
|
m.xx = 1 << 16;
|
|
m.xy = simulations & DWRITE_FONT_SIMULATIONS_OBLIQUE ? (1 << 16) / 3 : 0;
|
|
m.yx = 0;
|
|
m.yy = -(1 << 16); /* flip Y axis */
|
|
|
|
pFT_Outline_Transform(outline, &m);
|
|
|
|
if (advances)
|
|
advance = rtl_factor * advances[i];
|
|
else
|
|
advance = rtl_factor * ft_advance;
|
|
|
|
glyph_origin = origin;
|
|
if (is_rtl)
|
|
glyph_origin.x += advance;
|
|
|
|
/* glyph offsets act as current glyph adjustment */
|
|
if (offsets)
|
|
{
|
|
glyph_origin.x += rtl_factor * offsets[i].advanceOffset;
|
|
glyph_origin.y -= offsets[i].ascenderOffset;
|
|
}
|
|
|
|
decompose_outline(outline, glyph_origin, sink);
|
|
|
|
origin.x += advance;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
hr = E_FAIL;
|
|
LeaveCriticalSection(&freetype_cs);
|
|
|
|
return hr;
|
|
}
|
|
|
|
UINT16 freetype_get_glyphcount(IDWriteFontFace4 *fontface)
|
|
{
|
|
UINT16 count = 0;
|
|
FT_Face face;
|
|
|
|
EnterCriticalSection(&freetype_cs);
|
|
if (pFTC_Manager_LookupFace(cache_manager, fontface, &face) == 0)
|
|
count = face->num_glyphs;
|
|
LeaveCriticalSection(&freetype_cs);
|
|
|
|
return count;
|
|
}
|
|
|
|
void freetype_get_glyphs(IDWriteFontFace4 *fontface, INT charmap, UINT32 const *codepoints, UINT32 count,
|
|
UINT16 *glyphs)
|
|
{
|
|
UINT32 i;
|
|
|
|
EnterCriticalSection(&freetype_cs);
|
|
for (i = 0; i < count; i++) {
|
|
if (charmap == -1)
|
|
glyphs[i] = pFTC_CMapCache_Lookup(cmap_cache, fontface, charmap, codepoints[i]);
|
|
else {
|
|
UINT32 codepoint = codepoints[i];
|
|
/* special handling for symbol fonts */
|
|
if (codepoint < 0x100) codepoint += 0xf000;
|
|
glyphs[i] = pFTC_CMapCache_Lookup(cmap_cache, fontface, charmap, codepoint);
|
|
if (!glyphs[i])
|
|
glyphs[i] = pFTC_CMapCache_Lookup(cmap_cache, fontface, charmap, codepoint - 0xf000);
|
|
}
|
|
}
|
|
LeaveCriticalSection(&freetype_cs);
|
|
}
|
|
|
|
BOOL freetype_has_kerning_pairs(IDWriteFontFace4 *fontface)
|
|
{
|
|
BOOL has_kerning_pairs = FALSE;
|
|
FT_Face face;
|
|
|
|
EnterCriticalSection(&freetype_cs);
|
|
if (pFTC_Manager_LookupFace(cache_manager, fontface, &face) == 0)
|
|
has_kerning_pairs = !!FT_HAS_KERNING(face);
|
|
LeaveCriticalSection(&freetype_cs);
|
|
|
|
return has_kerning_pairs;
|
|
}
|
|
|
|
INT32 freetype_get_kerning_pair_adjustment(IDWriteFontFace4 *fontface, UINT16 left, UINT16 right)
|
|
{
|
|
INT32 adjustment = 0;
|
|
FT_Face face;
|
|
|
|
EnterCriticalSection(&freetype_cs);
|
|
if (pFTC_Manager_LookupFace(cache_manager, fontface, &face) == 0) {
|
|
FT_Vector kern;
|
|
if (FT_HAS_KERNING(face)) {
|
|
pFT_Get_Kerning(face, left, right, FT_KERNING_UNSCALED, &kern);
|
|
adjustment = kern.x;
|
|
}
|
|
}
|
|
LeaveCriticalSection(&freetype_cs);
|
|
|
|
return adjustment;
|
|
}
|
|
|
|
static inline void ft_matrix_from_dwrite_matrix(const DWRITE_MATRIX *m, FT_Matrix *ft_matrix)
|
|
{
|
|
ft_matrix->xx = m->m11 * 0x10000;
|
|
ft_matrix->xy = -m->m21 * 0x10000;
|
|
ft_matrix->yx = -m->m12 * 0x10000;
|
|
ft_matrix->yy = m->m22 * 0x10000;
|
|
}
|
|
|
|
/* Should be used only while holding 'freetype_cs' */
|
|
static BOOL is_face_scalable(IDWriteFontFace4 *fontface)
|
|
{
|
|
FT_Face face;
|
|
if (pFTC_Manager_LookupFace(cache_manager, fontface, &face) == 0)
|
|
return FT_IS_SCALABLE(face);
|
|
else
|
|
return FALSE;
|
|
}
|
|
|
|
static BOOL get_glyph_transform(struct dwrite_glyphbitmap *bitmap, FT_Matrix *ret)
|
|
{
|
|
FT_Matrix m;
|
|
|
|
ret->xx = 1 << 16;
|
|
ret->xy = 0;
|
|
ret->yx = 0;
|
|
ret->yy = 1 << 16;
|
|
|
|
/* Some fonts provide mostly bitmaps and very few outlines, for example for .notdef.
|
|
Disable transform if that's the case. */
|
|
if (!is_face_scalable(bitmap->fontface) || (!bitmap->m && bitmap->simulations == 0))
|
|
return FALSE;
|
|
|
|
if (bitmap->simulations & DWRITE_FONT_SIMULATIONS_OBLIQUE) {
|
|
m.xx = 1 << 16;
|
|
m.xy = (1 << 16) / 3;
|
|
m.yx = 0;
|
|
m.yy = 1 << 16;
|
|
pFT_Matrix_Multiply(&m, ret);
|
|
}
|
|
|
|
if (bitmap->m) {
|
|
ft_matrix_from_dwrite_matrix(bitmap->m, &m);
|
|
pFT_Matrix_Multiply(&m, ret);
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
void freetype_get_glyph_bbox(struct dwrite_glyphbitmap *bitmap)
|
|
{
|
|
FTC_ImageTypeRec imagetype;
|
|
FT_BBox bbox = { 0 };
|
|
BOOL needs_transform;
|
|
FT_Glyph glyph;
|
|
FT_Matrix m;
|
|
|
|
EnterCriticalSection(&freetype_cs);
|
|
|
|
needs_transform = get_glyph_transform(bitmap, &m);
|
|
|
|
imagetype.face_id = bitmap->fontface;
|
|
imagetype.width = 0;
|
|
imagetype.height = bitmap->emsize;
|
|
imagetype.flags = needs_transform ? FT_LOAD_NO_BITMAP : FT_LOAD_DEFAULT;
|
|
|
|
if (pFTC_ImageCache_Lookup(image_cache, &imagetype, bitmap->glyph, &glyph, NULL) == 0) {
|
|
if (needs_transform) {
|
|
FT_Glyph glyph_copy;
|
|
|
|
if (pFT_Glyph_Copy(glyph, &glyph_copy) == 0) {
|
|
if (bitmap->simulations & DWRITE_FONT_SIMULATIONS_BOLD)
|
|
embolden_glyph(glyph_copy, bitmap->emsize);
|
|
|
|
/* Includes oblique and user transform. */
|
|
pFT_Glyph_Transform(glyph_copy, &m, NULL);
|
|
pFT_Glyph_Get_CBox(glyph_copy, FT_GLYPH_BBOX_PIXELS, &bbox);
|
|
pFT_Done_Glyph(glyph_copy);
|
|
}
|
|
}
|
|
else
|
|
pFT_Glyph_Get_CBox(glyph, FT_GLYPH_BBOX_PIXELS, &bbox);
|
|
}
|
|
|
|
LeaveCriticalSection(&freetype_cs);
|
|
|
|
/* flip Y axis */
|
|
SetRect(&bitmap->bbox, bbox.xMin, -bbox.yMax, bbox.xMax, -bbox.yMin);
|
|
}
|
|
|
|
static BOOL freetype_get_aliased_glyph_bitmap(struct dwrite_glyphbitmap *bitmap, FT_Glyph glyph)
|
|
{
|
|
const RECT *bbox = &bitmap->bbox;
|
|
int width = bbox->right - bbox->left;
|
|
int height = bbox->bottom - bbox->top;
|
|
|
|
if (glyph->format == FT_GLYPH_FORMAT_OUTLINE) {
|
|
FT_OutlineGlyph outline = (FT_OutlineGlyph)glyph;
|
|
const FT_Outline *src = &outline->outline;
|
|
FT_Bitmap ft_bitmap;
|
|
FT_Outline copy;
|
|
|
|
ft_bitmap.width = width;
|
|
ft_bitmap.rows = height;
|
|
ft_bitmap.pitch = bitmap->pitch;
|
|
ft_bitmap.pixel_mode = FT_PIXEL_MODE_MONO;
|
|
ft_bitmap.buffer = bitmap->buf;
|
|
|
|
/* Note: FreeType will only set 'black' bits for us. */
|
|
if (pFT_Outline_New(library, src->n_points, src->n_contours, ©) == 0) {
|
|
pFT_Outline_Copy(src, ©);
|
|
pFT_Outline_Translate(©, -bbox->left << 6, bbox->bottom << 6);
|
|
pFT_Outline_Get_Bitmap(library, ©, &ft_bitmap);
|
|
pFT_Outline_Done(library, ©);
|
|
}
|
|
}
|
|
else if (glyph->format == FT_GLYPH_FORMAT_BITMAP) {
|
|
FT_Bitmap *ft_bitmap = &((FT_BitmapGlyph)glyph)->bitmap;
|
|
BYTE *src = ft_bitmap->buffer, *dst = bitmap->buf;
|
|
int w = min(bitmap->pitch, (ft_bitmap->width + 7) >> 3);
|
|
int h = min(height, ft_bitmap->rows);
|
|
|
|
while (h--) {
|
|
memcpy(dst, src, w);
|
|
src += ft_bitmap->pitch;
|
|
dst += bitmap->pitch;
|
|
}
|
|
}
|
|
else
|
|
FIXME("format %x not handled\n", glyph->format);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static BOOL freetype_get_aa_glyph_bitmap(struct dwrite_glyphbitmap *bitmap, FT_Glyph glyph)
|
|
{
|
|
const RECT *bbox = &bitmap->bbox;
|
|
int width = bbox->right - bbox->left;
|
|
int height = bbox->bottom - bbox->top;
|
|
BOOL ret = FALSE;
|
|
|
|
if (glyph->format == FT_GLYPH_FORMAT_OUTLINE) {
|
|
FT_OutlineGlyph outline = (FT_OutlineGlyph)glyph;
|
|
const FT_Outline *src = &outline->outline;
|
|
FT_Bitmap ft_bitmap;
|
|
FT_Outline copy;
|
|
|
|
ft_bitmap.width = width;
|
|
ft_bitmap.rows = height;
|
|
ft_bitmap.pitch = bitmap->pitch;
|
|
ft_bitmap.pixel_mode = FT_PIXEL_MODE_GRAY;
|
|
ft_bitmap.buffer = bitmap->buf;
|
|
|
|
/* Note: FreeType will only set 'black' bits for us. */
|
|
if (pFT_Outline_New(library, src->n_points, src->n_contours, ©) == 0) {
|
|
pFT_Outline_Copy(src, ©);
|
|
pFT_Outline_Translate(©, -bbox->left << 6, bbox->bottom << 6);
|
|
pFT_Outline_Get_Bitmap(library, ©, &ft_bitmap);
|
|
pFT_Outline_Done(library, ©);
|
|
}
|
|
}
|
|
else if (glyph->format == FT_GLYPH_FORMAT_BITMAP) {
|
|
FT_Bitmap *ft_bitmap = &((FT_BitmapGlyph)glyph)->bitmap;
|
|
BYTE *src = ft_bitmap->buffer, *dst = bitmap->buf;
|
|
int w = min(bitmap->pitch, (ft_bitmap->width + 7) >> 3);
|
|
int h = min(height, ft_bitmap->rows);
|
|
|
|
while (h--) {
|
|
memcpy(dst, src, w);
|
|
src += ft_bitmap->pitch;
|
|
dst += bitmap->pitch;
|
|
}
|
|
|
|
ret = TRUE;
|
|
}
|
|
else
|
|
FIXME("format %x not handled\n", glyph->format);
|
|
|
|
return ret;
|
|
}
|
|
|
|
BOOL freetype_get_glyph_bitmap(struct dwrite_glyphbitmap *bitmap)
|
|
{
|
|
FTC_ImageTypeRec imagetype;
|
|
BOOL needs_transform;
|
|
BOOL ret = FALSE;
|
|
FT_Glyph glyph;
|
|
FT_Matrix m;
|
|
|
|
EnterCriticalSection(&freetype_cs);
|
|
|
|
needs_transform = get_glyph_transform(bitmap, &m);
|
|
|
|
imagetype.face_id = bitmap->fontface;
|
|
imagetype.width = 0;
|
|
imagetype.height = bitmap->emsize;
|
|
imagetype.flags = needs_transform ? FT_LOAD_NO_BITMAP : FT_LOAD_DEFAULT;
|
|
|
|
if (pFTC_ImageCache_Lookup(image_cache, &imagetype, bitmap->glyph, &glyph, NULL) == 0) {
|
|
FT_Glyph glyph_copy;
|
|
|
|
if (needs_transform) {
|
|
if (pFT_Glyph_Copy(glyph, &glyph_copy) == 0) {
|
|
if (bitmap->simulations & DWRITE_FONT_SIMULATIONS_BOLD)
|
|
embolden_glyph(glyph_copy, bitmap->emsize);
|
|
|
|
/* Includes oblique and user transform. */
|
|
pFT_Glyph_Transform(glyph_copy, &m, NULL);
|
|
glyph = glyph_copy;
|
|
}
|
|
}
|
|
else
|
|
glyph_copy = NULL;
|
|
|
|
if (bitmap->aliased)
|
|
ret = freetype_get_aliased_glyph_bitmap(bitmap, glyph);
|
|
else
|
|
ret = freetype_get_aa_glyph_bitmap(bitmap, glyph);
|
|
|
|
if (glyph_copy)
|
|
pFT_Done_Glyph(glyph_copy);
|
|
}
|
|
|
|
LeaveCriticalSection(&freetype_cs);
|
|
|
|
return ret;
|
|
}
|
|
|
|
INT freetype_get_charmap_index(IDWriteFontFace4 *fontface, BOOL *is_symbol)
|
|
{
|
|
INT charmap_index = -1;
|
|
FT_Face face;
|
|
|
|
*is_symbol = FALSE;
|
|
|
|
EnterCriticalSection(&freetype_cs);
|
|
if (pFTC_Manager_LookupFace(cache_manager, fontface, &face) == 0) {
|
|
TT_OS2 *os2 = pFT_Get_Sfnt_Table(face, ft_sfnt_os2);
|
|
FT_Int i;
|
|
|
|
if (os2) {
|
|
FT_UInt dummy;
|
|
if (os2->version == 0)
|
|
*is_symbol = pFT_Get_First_Char(face, &dummy) >= 0x100;
|
|
else
|
|
*is_symbol = !!(os2->ulCodePageRange1 & FS_SYMBOL);
|
|
}
|
|
|
|
for (i = 0; i < face->num_charmaps; i++)
|
|
if (face->charmaps[i]->encoding == FT_ENCODING_MS_SYMBOL) {
|
|
*is_symbol = TRUE;
|
|
charmap_index = i;
|
|
break;
|
|
}
|
|
}
|
|
LeaveCriticalSection(&freetype_cs);
|
|
|
|
return charmap_index;
|
|
}
|
|
|
|
INT32 freetype_get_glyph_advance(IDWriteFontFace4 *fontface, FLOAT emSize, UINT16 index, DWRITE_MEASURING_MODE mode,
|
|
BOOL *has_contours)
|
|
{
|
|
FTC_ImageTypeRec imagetype;
|
|
FT_Glyph glyph;
|
|
INT32 advance;
|
|
|
|
imagetype.face_id = fontface;
|
|
imagetype.width = 0;
|
|
imagetype.height = emSize;
|
|
imagetype.flags = FT_LOAD_DEFAULT;
|
|
if (mode == DWRITE_MEASURING_MODE_NATURAL)
|
|
imagetype.flags |= FT_LOAD_NO_HINTING;
|
|
|
|
EnterCriticalSection(&freetype_cs);
|
|
if (pFTC_ImageCache_Lookup(image_cache, &imagetype, index, &glyph, NULL) == 0) {
|
|
*has_contours = glyph->format == FT_GLYPH_FORMAT_OUTLINE && ((FT_OutlineGlyph)glyph)->outline.n_contours;
|
|
advance = glyph->advance.x >> 16;
|
|
}
|
|
else {
|
|
*has_contours = FALSE;
|
|
advance = 0;
|
|
}
|
|
LeaveCriticalSection(&freetype_cs);
|
|
|
|
return advance;
|
|
}
|
|
|
|
#else /* HAVE_FREETYPE */
|
|
|
|
BOOL init_freetype(void)
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
void release_freetype(void)
|
|
{
|
|
}
|
|
|
|
void freetype_notify_cacheremove(IDWriteFontFace4 *fontface)
|
|
{
|
|
}
|
|
|
|
HRESULT freetype_get_design_glyph_metrics(IDWriteFontFace4 *fontface, UINT16 unitsperEm, UINT16 glyph, DWRITE_GLYPH_METRICS *ret)
|
|
{
|
|
return E_NOTIMPL;
|
|
}
|
|
|
|
BOOL freetype_is_monospaced(IDWriteFontFace4 *fontface)
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
HRESULT freetype_get_glyphrun_outline(IDWriteFontFace4 *fontface, float emSize, UINT16 const *glyphs,
|
|
float const *advances, DWRITE_GLYPH_OFFSET const *offsets, unsigned int count, BOOL is_rtl,
|
|
IDWriteGeometrySink *sink)
|
|
{
|
|
return E_NOTIMPL;
|
|
}
|
|
|
|
UINT16 freetype_get_glyphcount(IDWriteFontFace4 *fontface)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
void freetype_get_glyphs(IDWriteFontFace4 *fontface, INT charmap, UINT32 const *codepoints, UINT32 count,
|
|
UINT16 *glyphs)
|
|
{
|
|
memset(glyphs, 0, count * sizeof(*glyphs));
|
|
}
|
|
|
|
BOOL freetype_has_kerning_pairs(IDWriteFontFace4 *fontface)
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
INT32 freetype_get_kerning_pair_adjustment(IDWriteFontFace4 *fontface, UINT16 left, UINT16 right)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
void freetype_get_glyph_bbox(struct dwrite_glyphbitmap *bitmap)
|
|
{
|
|
SetRectEmpty(&bitmap->bbox);
|
|
}
|
|
|
|
BOOL freetype_get_glyph_bitmap(struct dwrite_glyphbitmap *bitmap)
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
INT freetype_get_charmap_index(IDWriteFontFace4 *fontface, BOOL *is_symbol)
|
|
{
|
|
*is_symbol = FALSE;
|
|
return -1;
|
|
}
|
|
|
|
INT32 freetype_get_glyph_advance(IDWriteFontFace4 *fontface, FLOAT emSize, UINT16 index, DWRITE_MEASURING_MODE mode,
|
|
BOOL *has_contours)
|
|
{
|
|
*has_contours = FALSE;
|
|
return 0;
|
|
}
|
|
|
|
#endif /* HAVE_FREETYPE */
|