| /* |
| * FreeType integration |
| * |
| * Copyright 2014-2015 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 |
| */ |
| |
| #define COBJMACROS |
| |
| #include "config.h" |
| #include "wine/port.h" |
| |
| #ifdef HAVE_FT2BUILD_H |
| #include <ft2build.h> |
| #include FT_CACHE_H |
| #include FT_FREETYPE_H |
| #include FT_OUTLINE_H |
| #include FT_TRUETYPE_TABLES_H |
| #endif /* HAVE_FT2BUILD_H */ |
| |
| #include "windef.h" |
| #include "wine/library.h" |
| #include "wine/debug.h" |
| |
| #include "dwrite_private.h" |
| |
| WINE_DEFAULT_DEBUG_CHANNEL(dwrite); |
| |
| #ifdef HAVE_FREETYPE |
| |
| static CRITICAL_SECTION freetype_cs; |
| static CRITICAL_SECTION_DEBUG critsect_debug = |
| { |
| 0, 0, &freetype_cs, |
| { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList }, |
| 0, 0, { (DWORD_PTR)(__FILE__ ": freetype_cs") } |
| }; |
| static CRITICAL_SECTION freetype_cs = { &critsect_debug, -1, 0, 0, 0, 0 }; |
| |
| static void *ft_handle = NULL; |
| static FT_Library library = 0; |
| static FTC_Manager cache_manager = 0; |
| static FTC_CMapCache cmap_cache = 0; |
| static FTC_ImageCache image_cache = 0; |
| typedef struct |
| { |
| FT_Int major; |
| FT_Int minor; |
| FT_Int patch; |
| } FT_Version_t; |
| |
| #define MAKE_FUNCPTR(f) static typeof(f) * p##f = NULL |
| MAKE_FUNCPTR(FT_Done_FreeType); |
| MAKE_FUNCPTR(FT_Done_Glyph); |
| MAKE_FUNCPTR(FT_Get_First_Char); |
| MAKE_FUNCPTR(FT_Get_Kerning); |
| MAKE_FUNCPTR(FT_Get_Sfnt_Table); |
| MAKE_FUNCPTR(FT_Glyph_Copy); |
| MAKE_FUNCPTR(FT_Glyph_Get_CBox); |
| MAKE_FUNCPTR(FT_Glyph_Transform); |
| MAKE_FUNCPTR(FT_Init_FreeType); |
| MAKE_FUNCPTR(FT_Library_Version); |
| MAKE_FUNCPTR(FT_Load_Glyph); |
| MAKE_FUNCPTR(FT_New_Memory_Face); |
| MAKE_FUNCPTR(FT_Outline_Copy); |
| MAKE_FUNCPTR(FT_Outline_Decompose); |
| MAKE_FUNCPTR(FT_Outline_Done); |
| MAKE_FUNCPTR(FT_Outline_Get_Bitmap); |
| MAKE_FUNCPTR(FT_Outline_New); |
| MAKE_FUNCPTR(FT_Outline_Transform); |
| MAKE_FUNCPTR(FT_Outline_Translate); |
| MAKE_FUNCPTR(FTC_CMapCache_Lookup); |
| MAKE_FUNCPTR(FTC_CMapCache_New); |
| MAKE_FUNCPTR(FTC_ImageCache_Lookup); |
| MAKE_FUNCPTR(FTC_ImageCache_New); |
| MAKE_FUNCPTR(FTC_Manager_New); |
| MAKE_FUNCPTR(FTC_Manager_Done); |
| MAKE_FUNCPTR(FTC_Manager_LookupFace); |
| MAKE_FUNCPTR(FTC_Manager_LookupSize); |
| MAKE_FUNCPTR(FTC_Manager_RemoveFaceID); |
| #undef MAKE_FUNCPTR |
| |
| static FT_Error face_requester(FTC_FaceID face_id, FT_Library library, FT_Pointer request_data, FT_Face *face) |
| { |
| IDWriteFontFace *fontface = (IDWriteFontFace*)face_id; |
| IDWriteFontFileStream *stream; |
| IDWriteFontFile *file; |
| const void *data_ptr; |
| UINT32 index, count; |
| FT_Error fterror; |
| UINT64 data_size; |
| void *context; |
| HRESULT hr; |
| |
| *face = NULL; |
| |
| count = 1; |
| hr = IDWriteFontFace_GetFiles(fontface, &count, &file); |
| if (FAILED(hr)) |
| return FT_Err_Ok; |
| |
| hr = get_filestream_from_file(file, &stream); |
| IDWriteFontFile_Release(file); |
| if (FAILED(hr)) |
| return FT_Err_Ok; |
| |
| hr = IDWriteFontFileStream_GetFileSize(stream, &data_size); |
| if (FAILED(hr)) { |
| fterror = FT_Err_Invalid_Stream_Read; |
| goto fail; |
| } |
| |
| hr = IDWriteFontFileStream_ReadFileFragment(stream, &data_ptr, 0, data_size, &context); |
| if (FAILED(hr)) { |
| fterror = FT_Err_Invalid_Stream_Read; |
| goto fail; |
| } |
| |
| index = IDWriteFontFace_GetIndex(fontface); |
| fterror = pFT_New_Memory_Face(library, data_ptr, data_size, index, face); |
| IDWriteFontFileStream_ReleaseFileFragment(stream, context); |
| |
| fail: |
| IDWriteFontFileStream_Release(stream); |
| |
| return fterror; |
| } |
| |
| BOOL init_freetype(void) |
| { |
| FT_Version_t FT_Version; |
| |
| ft_handle = wine_dlopen(SONAME_LIBFREETYPE, RTLD_NOW, NULL, 0); |
| if (!ft_handle) { |
| WINE_MESSAGE("Wine cannot find the FreeType font library.\n"); |
| return FALSE; |
| } |
| |
| #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;} |
| LOAD_FUNCPTR(FT_Done_FreeType) |
| LOAD_FUNCPTR(FT_Done_Glyph) |
| LOAD_FUNCPTR(FT_Get_First_Char) |
| LOAD_FUNCPTR(FT_Get_Kerning) |
| LOAD_FUNCPTR(FT_Get_Sfnt_Table) |
| LOAD_FUNCPTR(FT_Glyph_Copy) |
| LOAD_FUNCPTR(FT_Glyph_Get_CBox) |
| LOAD_FUNCPTR(FT_Glyph_Transform) |
| LOAD_FUNCPTR(FT_Init_FreeType) |
| LOAD_FUNCPTR(FT_Library_Version) |
| LOAD_FUNCPTR(FT_Load_Glyph) |
| LOAD_FUNCPTR(FT_New_Memory_Face) |
| LOAD_FUNCPTR(FT_Outline_Copy) |
| LOAD_FUNCPTR(FT_Outline_Decompose) |
| LOAD_FUNCPTR(FT_Outline_Done) |
| LOAD_FUNCPTR(FT_Outline_Get_Bitmap) |
| LOAD_FUNCPTR(FT_Outline_New) |
| LOAD_FUNCPTR(FT_Outline_Transform) |
| LOAD_FUNCPTR(FT_Outline_Translate) |
| LOAD_FUNCPTR(FTC_CMapCache_Lookup) |
| LOAD_FUNCPTR(FTC_CMapCache_New) |
| LOAD_FUNCPTR(FTC_ImageCache_Lookup) |
| LOAD_FUNCPTR(FTC_ImageCache_New) |
| LOAD_FUNCPTR(FTC_Manager_New) |
| LOAD_FUNCPTR(FTC_Manager_Done) |
| LOAD_FUNCPTR(FTC_Manager_LookupFace) |
| LOAD_FUNCPTR(FTC_Manager_LookupSize) |
| LOAD_FUNCPTR(FTC_Manager_RemoveFaceID) |
| #undef LOAD_FUNCPTR |
| |
| if (pFT_Init_FreeType(&library) != 0) { |
| ERR("Can't init FreeType library\n"); |
| wine_dlclose(ft_handle, NULL, 0); |
| ft_handle = NULL; |
| return FALSE; |
| } |
| pFT_Library_Version(library, &FT_Version.major, &FT_Version.minor, &FT_Version.patch); |
| |
| /* init cache manager */ |
| if (pFTC_Manager_New(library, 0, 0, 0, &face_requester, NULL, &cache_manager) != 0 || |
| pFTC_CMapCache_New(cache_manager, &cmap_cache) != 0 || |
| pFTC_ImageCache_New(cache_manager, &image_cache) != 0) { |
| |
| ERR("Failed to init FreeType cache\n"); |
| pFTC_Manager_Done(cache_manager); |
| pFT_Done_FreeType(library); |
| wine_dlclose(ft_handle, NULL, 0); |
| ft_handle = NULL; |
| return FALSE; |
| } |
| |
| TRACE("FreeType version is %d.%d.%d\n", FT_Version.major, FT_Version.minor, FT_Version.patch); |
| return TRUE; |
| |
| sym_not_found: |
| WINE_MESSAGE("Wine cannot find certain functions that it needs from FreeType library.\n"); |
| wine_dlclose(ft_handle, NULL, 0); |
| ft_handle = NULL; |
| return FALSE; |
| } |
| |
| void release_freetype(void) |
| { |
| pFTC_Manager_Done(cache_manager); |
| pFT_Done_FreeType(library); |
| } |
| |
| void freetype_notify_cacheremove(IDWriteFontFace3 *fontface) |
| { |
| EnterCriticalSection(&freetype_cs); |
| pFTC_Manager_RemoveFaceID(cache_manager, fontface); |
| LeaveCriticalSection(&freetype_cs); |
| } |
| |
| HRESULT freetype_get_design_glyph_metrics(IDWriteFontFace3 *fontface, UINT16 unitsperEm, UINT16 glyph, DWRITE_GLYPH_METRICS *ret) |
| { |
| FTC_ScalerRec scaler; |
| FT_Size size; |
| |
| scaler.face_id = fontface; |
| scaler.width = unitsperEm; |
| scaler.height = unitsperEm; |
| scaler.pixel = 1; |
| scaler.x_res = 0; |
| scaler.y_res = 0; |
| |
| EnterCriticalSection(&freetype_cs); |
| if (pFTC_Manager_LookupSize(cache_manager, &scaler, &size) == 0) { |
| if (pFT_Load_Glyph(size->face, glyph, FT_LOAD_NO_SCALE) == 0) { |
| FT_Glyph_Metrics *metrics = &size->face->glyph->metrics; |
| |
| ret->leftSideBearing = metrics->horiBearingX; |
| ret->advanceWidth = metrics->horiAdvance; |
| ret->rightSideBearing = metrics->horiAdvance - metrics->horiBearingX - metrics->width; |
| ret->topSideBearing = metrics->vertBearingY; |
| ret->advanceHeight = metrics->vertAdvance; |
| ret->bottomSideBearing = metrics->vertAdvance - metrics->vertBearingY - metrics->height; |
| ret->verticalOriginY = metrics->height + metrics->vertBearingY; |
| } |
| } |
| LeaveCriticalSection(&freetype_cs); |
| |
| return S_OK; |
| } |
| |
| BOOL freetype_is_monospaced(IDWriteFontFace3 *fontface) |
| { |
| BOOL is_monospaced = FALSE; |
| FT_Face face; |
| |
| EnterCriticalSection(&freetype_cs); |
| if (pFTC_Manager_LookupFace(cache_manager, fontface, &face) == 0) |
| is_monospaced = !!FT_IS_FIXED_WIDTH(face); |
| LeaveCriticalSection(&freetype_cs); |
| |
| return is_monospaced; |
| } |
| |
| struct decompose_context { |
| IDWriteGeometrySink *sink; |
| FLOAT xoffset; |
| FLOAT yoffset; |
| BOOL figure_started; |
| BOOL figure_closed; |
| BOOL move_to; /* last call was 'move_to' */ |
| FT_Vector origin; /* 'pen' position from last call */ |
| }; |
| |
| static inline void ft_vector_to_d2d_point(const FT_Vector *v, FLOAT xoffset, FLOAT yoffset, D2D1_POINT_2F *p) |
| { |
| p->x = (v->x / 64.0f) + xoffset; |
| p->y = (v->y / 64.0f) + yoffset; |
| } |
| |
| static int decompose_move_to(const FT_Vector *to, void *user) |
| { |
| struct decompose_context *ctxt = (struct decompose_context*)user; |
| D2D1_POINT_2F point; |
| |
| if (ctxt->figure_started) { |
| ID2D1SimplifiedGeometrySink_EndFigure(ctxt->sink, D2D1_FIGURE_END_CLOSED); |
| ctxt->figure_closed = TRUE; |
| } |
| else |
| ctxt->figure_closed = FALSE; |
| ctxt->figure_started = TRUE; |
| |
| ft_vector_to_d2d_point(to, ctxt->xoffset, ctxt->yoffset, &point); |
| ID2D1SimplifiedGeometrySink_BeginFigure(ctxt->sink, point, D2D1_FIGURE_BEGIN_FILLED); |
| ctxt->move_to = TRUE; |
| ctxt->origin = *to; |
| return 0; |
| } |
| |
| static int decompose_line_to(const FT_Vector *to, void *user) |
| { |
| struct decompose_context *ctxt = (struct decompose_context*)user; |
| /* special case for empty contours, in a way freetype returns them */ |
| if (ctxt->move_to && !memcmp(to, &ctxt->origin, sizeof(*to))) { |
| ID2D1SimplifiedGeometrySink_EndFigure(ctxt->sink, D2D1_FIGURE_END_CLOSED); |
| ctxt->figure_closed = TRUE; |
| } |
| else { |
| D2D1_POINT_2F point; |
| ft_vector_to_d2d_point(to, ctxt->xoffset, ctxt->yoffset, &point); |
| ID2D1SimplifiedGeometrySink_AddLines(ctxt->sink, &point, 1); |
| ctxt->figure_closed = FALSE; |
| } |
| ctxt->move_to = FALSE; |
| ctxt->origin = *to; |
| return 0; |
| } |
| |
| static int decompose_conic_to(const FT_Vector *control, const FT_Vector *to, void *user) |
| { |
| struct decompose_context *ctxt = (struct decompose_context*)user; |
| D2D1_POINT_2F points[3]; |
| FT_Vector cubic[3]; |
| |
| /* convert from quadratic to cubic */ |
| |
| /* |
| The parametric eqn for a cubic Bezier is, from PLRM: |
| r(t) = at^3 + bt^2 + ct + r0 |
| with the control points: |
| r1 = r0 + c/3 |
| r2 = r1 + (c + b)/3 |
| r3 = r0 + c + b + a |
| |
| A quadratic Bezier has the form: |
| p(t) = (1-t)^2 p0 + 2(1-t)t p1 + t^2 p2 |
| |
| So equating powers of t leads to: |
| r1 = 2/3 p1 + 1/3 p0 |
| r2 = 2/3 p1 + 1/3 p2 |
| and of course r0 = p0, r3 = p2 |
| */ |
| |
| /* r1 = 1/3 p0 + 2/3 p1 |
| r2 = 1/3 p2 + 2/3 p1 */ |
| cubic[0].x = (2 * control->x + 1) / 3; |
| cubic[0].y = (2 * control->y + 1) / 3; |
| cubic[1] = cubic[0]; |
| cubic[0].x += (ctxt->origin.x + 1) / 3; |
| cubic[0].y += (ctxt->origin.y + 1) / 3; |
| cubic[1].x += (to->x + 1) / 3; |
| cubic[1].y += (to->y + 1) / 3; |
| cubic[2] = *to; |
| |
| ft_vector_to_d2d_point(cubic, ctxt->xoffset, ctxt->yoffset, points); |
| ft_vector_to_d2d_point(cubic + 1, ctxt->xoffset, ctxt->yoffset, points + 1); |
| ft_vector_to_d2d_point(cubic + 2, ctxt->xoffset, ctxt->yoffset, points + 2); |
| ID2D1SimplifiedGeometrySink_AddBeziers(ctxt->sink, (D2D1_BEZIER_SEGMENT*)points, 1); |
| ctxt->figure_closed = FALSE; |
| ctxt->move_to = FALSE; |
| ctxt->origin = *to; |
| return 0; |
| } |
| |
| static int decompose_cubic_to(const FT_Vector *control1, const FT_Vector *control2, |
| const FT_Vector *to, void *user) |
| { |
| struct decompose_context *ctxt = (struct decompose_context*)user; |
| D2D1_POINT_2F points[3]; |
| |
| ft_vector_to_d2d_point(control1, ctxt->xoffset, ctxt->yoffset, points); |
| ft_vector_to_d2d_point(control2, ctxt->xoffset, ctxt->yoffset, points + 1); |
| ft_vector_to_d2d_point(to, ctxt->xoffset, ctxt->yoffset, points + 2); |
| ID2D1SimplifiedGeometrySink_AddBeziers(ctxt->sink, (D2D1_BEZIER_SEGMENT*)points, 1); |
| ctxt->figure_closed = FALSE; |
| ctxt->move_to = FALSE; |
| ctxt->origin = *to; |
| return 0; |
| } |
| |
| static void decompose_outline(FT_Outline *outline, FLOAT xoffset, FLOAT yoffset, IDWriteGeometrySink *sink) |
| { |
| static const FT_Outline_Funcs decompose_funcs = { |
| decompose_move_to, |
| decompose_line_to, |
| decompose_conic_to, |
| decompose_cubic_to, |
| 0, |
| 0 |
| }; |
| struct decompose_context context; |
| |
| context.sink = sink; |
| context.xoffset = xoffset; |
| context.yoffset = yoffset; |
| context.figure_started = FALSE; |
| context.figure_closed = FALSE; |
| context.move_to = FALSE; |
| context.origin.x = 0; |
| context.origin.y = 0; |
| |
| pFT_Outline_Decompose(outline, &decompose_funcs, &context); |
| |
| if (!context.figure_closed && outline->n_points) |
| ID2D1SimplifiedGeometrySink_EndFigure(sink, D2D1_FIGURE_END_CLOSED); |
| } |
| |
| HRESULT freetype_get_glyphrun_outline(IDWriteFontFace3 *fontface, FLOAT emSize, UINT16 const *glyphs, FLOAT const *advances, |
| DWRITE_GLYPH_OFFSET const *offsets, UINT32 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 = IDWriteFontFace3_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 advance = 0.0f; |
| UINT32 g; |
| |
| for (g = 0; g < count; g++) { |
| if (pFT_Load_Glyph(size->face, glyphs[g], FT_LOAD_NO_BITMAP) == 0) { |
| FLOAT ft_advance = size->face->glyph->metrics.horiAdvance >> 6; |
| FT_Outline *outline = &size->face->glyph->outline; |
| FLOAT xoffset = 0.0f, yoffset = 0.0f; |
| FT_Matrix m; |
| |
| 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); |
| |
| /* glyph offsets act as current glyph adjustment */ |
| if (offsets) { |
| xoffset += is_rtl ? -offsets[g].advanceOffset : offsets[g].advanceOffset; |
| yoffset -= offsets[g].ascenderOffset; |
| } |
| |
| if (g == 0 && is_rtl) |
| advance = advances ? -advances[g] : -ft_advance; |
| |
| xoffset += advance; |
| decompose_outline(outline, xoffset, yoffset, sink); |
| |
| /* update advance to next glyph */ |
| if (advances) |
| advance += is_rtl ? -advances[g] : advances[g]; |
| else |
| advance += is_rtl ? -ft_advance : ft_advance; |
| } |
| } |
| } |
| else |
| hr = E_FAIL; |
| LeaveCriticalSection(&freetype_cs); |
| |
| return hr; |
| } |
| |
| UINT16 freetype_get_glyphcount(IDWriteFontFace3 *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(IDWriteFontFace3 *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(IDWriteFontFace3 *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(IDWriteFontFace3 *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(IDWriteFontFace3 *fontface) |
| { |
| FT_Face face; |
| if (pFTC_Manager_LookupFace(cache_manager, fontface, &face) == 0) |
| return FT_IS_SCALABLE(face); |
| else |
| return FALSE; |
| } |
| |
| void freetype_get_glyph_bbox(struct dwrite_glyphbitmap *bitmap) |
| { |
| FTC_ImageTypeRec imagetype; |
| FT_BBox bbox = { 0 }; |
| FT_Glyph glyph; |
| |
| EnterCriticalSection(&freetype_cs); |
| |
| /* Some fonts provide mostly bitmaps and very few outlines, for example for .notdef, |
| disable transform if that's the case. */ |
| if (bitmap->m) { |
| if (!is_face_scalable(bitmap->fontface)) |
| bitmap->m = NULL; |
| } |
| |
| imagetype.face_id = bitmap->fontface; |
| imagetype.width = 0; |
| imagetype.height = bitmap->emsize; |
| imagetype.flags = bitmap->m ? FT_LOAD_NO_BITMAP : FT_LOAD_DEFAULT; |
| |
| if (pFTC_ImageCache_Lookup(image_cache, &imagetype, bitmap->index, &glyph, NULL) == 0) { |
| if (bitmap->m) { |
| FT_Glyph glyph_copy; |
| |
| if (pFT_Glyph_Copy(glyph, &glyph_copy) == 0) { |
| FT_Matrix ft_matrix; |
| |
| ft_matrix_from_dwrite_matrix(bitmap->m, &ft_matrix); |
| pFT_Glyph_Transform(glyph_copy, &ft_matrix, 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 */ |
| bitmap->bbox.left = bbox.xMin; |
| bitmap->bbox.right = bbox.xMax; |
| bitmap->bbox.top = -bbox.yMax; |
| bitmap->bbox.bottom = -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 ret = FALSE; |
| FT_Glyph glyph; |
| |
| EnterCriticalSection(&freetype_cs); |
| |
| if (bitmap->m) { |
| if (!is_face_scalable(bitmap->fontface)) |
| bitmap->m = NULL; |
| } |
| |
| imagetype.face_id = bitmap->fontface; |
| imagetype.width = 0; |
| imagetype.height = bitmap->emsize; |
| imagetype.flags = bitmap->m ? FT_LOAD_NO_BITMAP : FT_LOAD_DEFAULT; |
| |
| if (pFTC_ImageCache_Lookup(image_cache, &imagetype, bitmap->index, &glyph, NULL) == 0) { |
| FT_Glyph glyph_copy; |
| |
| if (bitmap->m) { |
| if (pFT_Glyph_Copy(glyph, &glyph_copy) == 0) { |
| FT_Matrix ft_matrix; |
| |
| ft_matrix_from_dwrite_matrix(bitmap->m, &ft_matrix); |
| pFT_Glyph_Transform(glyph_copy, &ft_matrix, NULL); |
| glyph = glyph_copy; |
| } |
| } |
| else |
| glyph_copy = NULL; |
| |
| if (bitmap->type == DWRITE_TEXTURE_CLEARTYPE_3x1) |
| ret = freetype_get_aa_glyph_bitmap(bitmap, glyph); |
| else |
| ret = freetype_get_aliased_glyph_bitmap(bitmap, glyph); |
| |
| if (glyph_copy) |
| pFT_Done_Glyph(glyph_copy); |
| } |
| |
| LeaveCriticalSection(&freetype_cs); |
| |
| return ret; |
| } |
| |
| INT freetype_get_charmap_index(IDWriteFontFace3 *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(IDWriteFontFace3 *fontface, FLOAT emSize, UINT16 index, DWRITE_MEASURING_MODE mode) |
| { |
| 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) |
| advance = glyph->advance.x >> 16; |
| else |
| advance = 0; |
| LeaveCriticalSection(&freetype_cs); |
| |
| return advance; |
| } |
| |
| #else /* HAVE_FREETYPE */ |
| |
| BOOL init_freetype(void) |
| { |
| return FALSE; |
| } |
| |
| void release_freetype(void) |
| { |
| } |
| |
| void freetype_notify_cacheremove(IDWriteFontFace3 *fontface) |
| { |
| } |
| |
| HRESULT freetype_get_design_glyph_metrics(IDWriteFontFace3 *fontface, UINT16 unitsperEm, UINT16 glyph, DWRITE_GLYPH_METRICS *ret) |
| { |
| return E_NOTIMPL; |
| } |
| |
| BOOL freetype_is_monospaced(IDWriteFontFace3 *fontface) |
| { |
| return FALSE; |
| } |
| |
| HRESULT freetype_get_glyphrun_outline(IDWriteFontFace3 *fontface, FLOAT emSize, UINT16 const *glyphs, FLOAT const *advances, |
| DWRITE_GLYPH_OFFSET const *offsets, UINT32 count, BOOL is_rtl, IDWriteGeometrySink *sink) |
| { |
| return E_NOTIMPL; |
| } |
| |
| UINT16 freetype_get_glyphcount(IDWriteFontFace3 *fontface) |
| { |
| return 0; |
| } |
| |
| void freetype_get_glyphs(IDWriteFontFace3 *fontface, INT charmap, UINT32 const *codepoints, UINT32 count, |
| UINT16 *glyphs) |
| { |
| memset(glyphs, 0, count * sizeof(*glyphs)); |
| } |
| |
| BOOL freetype_has_kerning_pairs(IDWriteFontFace3 *fontface) |
| { |
| return FALSE; |
| } |
| |
| INT32 freetype_get_kerning_pair_adjustment(IDWriteFontFace3 *fontface, UINT16 left, UINT16 right) |
| { |
| return 0; |
| } |
| |
| void freetype_get_glyph_bbox(struct dwrite_glyphbitmap *bitmap) |
| { |
| memset(&bitmap->bbox, 0, sizeof(bitmap->bbox)); |
| } |
| |
| BOOL freetype_get_glyph_bitmap(struct dwrite_glyphbitmap *bitmap) |
| { |
| return FALSE; |
| } |
| |
| INT freetype_get_charmap_index(IDWriteFontFace3 *fontface, BOOL *is_symbol) |
| { |
| *is_symbol = FALSE; |
| return -1; |
| } |
| |
| INT32 freetype_get_glyph_advance(IDWriteFontFace3 *fontface, FLOAT emSize, UINT16 index, DWRITE_MEASURING_MODE mode) |
| { |
| return 0; |
| } |
| |
| #endif /* HAVE_FREETYPE */ |