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1 /* | 1 /* |
2 * Copyright (c) 2012 Google Inc. All rights reserved. | 2 * Copyright (c) 2012 Google Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions are | 5 * modification, are permitted provided that the following conditions are |
6 * met: | 6 * met: |
7 * | 7 * |
8 * * Redistributions of source code must retain the above copyright | 8 * * Redistributions of source code must retain the above copyright |
9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
10 * * Redistributions in binary form must reproduce the above | 10 * * Redistributions in binary form must reproduce the above |
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24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
29 */ | 29 */ |
30 | 30 |
31 #include "config.h" | 31 #include "config.h" |
32 #include "platform/fonts/harfbuzz/HarfBuzzFace.h" | 32 #include "platform/fonts/harfbuzz/HarfBuzzFace.h" |
33 | 33 |
| 34 #include "hb-coretext.h" |
| 35 #include "hb.h" |
34 #include "platform/fonts/FontPlatformData.h" | 36 #include "platform/fonts/FontPlatformData.h" |
35 #include "platform/fonts/SimpleFontData.h" | 37 #include "platform/fonts/SimpleFontData.h" |
36 #include "platform/fonts/harfbuzz/HarfBuzzShaper.h" | 38 #include "platform/fonts/harfbuzz/HarfBuzzShaper.h" |
37 | |
38 #include <ApplicationServices/ApplicationServices.h> | 39 #include <ApplicationServices/ApplicationServices.h> |
39 #include "hb.h" | |
40 | 40 |
41 namespace WebCore { | 41 namespace WebCore { |
42 | 42 |
43 static hb_position_t floatToHarfBuzzPosition(CGFloat value) | 43 static hb_position_t floatToHarfBuzzPosition(CGFloat value) |
44 { | 44 { |
45 return static_cast<hb_position_t>(value * (1 << 16)); | 45 return static_cast<hb_position_t>(value * (1 << 16)); |
46 } | 46 } |
47 | 47 |
48 static hb_bool_t getGlyph(hb_font_t* hbFont, void* fontData, hb_codepoint_t unic
ode, hb_codepoint_t variationSelector, hb_codepoint_t* glyph, void* userData) | 48 static hb_bool_t getGlyph(hb_font_t* hbFont, void* fontData, hb_codepoint_t unic
ode, hb_codepoint_t variationSelector, hb_codepoint_t* glyph, void* userData) |
49 { | 49 { |
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93 harfBuzzCoreTextFontFuncs = hb_font_funcs_create(); | 93 harfBuzzCoreTextFontFuncs = hb_font_funcs_create(); |
94 hb_font_funcs_set_glyph_func(harfBuzzCoreTextFontFuncs, getGlyph, 0, 0); | 94 hb_font_funcs_set_glyph_func(harfBuzzCoreTextFontFuncs, getGlyph, 0, 0); |
95 hb_font_funcs_set_glyph_h_advance_func(harfBuzzCoreTextFontFuncs, getGly
phHorizontalAdvance, 0, 0); | 95 hb_font_funcs_set_glyph_h_advance_func(harfBuzzCoreTextFontFuncs, getGly
phHorizontalAdvance, 0, 0); |
96 hb_font_funcs_set_glyph_h_origin_func(harfBuzzCoreTextFontFuncs, getGlyp
hHorizontalOrigin, 0, 0); | 96 hb_font_funcs_set_glyph_h_origin_func(harfBuzzCoreTextFontFuncs, getGlyp
hHorizontalOrigin, 0, 0); |
97 hb_font_funcs_set_glyph_extents_func(harfBuzzCoreTextFontFuncs, getGlyph
Extents, 0, 0); | 97 hb_font_funcs_set_glyph_extents_func(harfBuzzCoreTextFontFuncs, getGlyph
Extents, 0, 0); |
98 hb_font_funcs_make_immutable(harfBuzzCoreTextFontFuncs); | 98 hb_font_funcs_make_immutable(harfBuzzCoreTextFontFuncs); |
99 } | 99 } |
100 return harfBuzzCoreTextFontFuncs; | 100 return harfBuzzCoreTextFontFuncs; |
101 } | 101 } |
102 | 102 |
103 static void releaseTableData(void* userData) | |
104 { | |
105 CFDataRef cfData = reinterpret_cast<CFDataRef>(userData); | |
106 CFRelease(cfData); | |
107 } | |
108 | |
109 static hb_blob_t* harfBuzzCoreTextGetTable(hb_face_t* face, hb_tag_t tag, void*
userData) | |
110 { | |
111 CGFontRef cgFont = reinterpret_cast<CGFontRef>(userData); | |
112 CFDataRef cfData = CGFontCopyTableForTag(cgFont, tag); | |
113 if (!cfData) | |
114 return 0; | |
115 | |
116 const char* data = reinterpret_cast<const char*>(CFDataGetBytePtr(cfData)); | |
117 const size_t length = CFDataGetLength(cfData); | |
118 if (!data || !length) | |
119 return 0; | |
120 return hb_blob_create(data, length, HB_MEMORY_MODE_READONLY, reinterpret_cas
t<void*>(const_cast<__CFData*>(cfData)), releaseTableData); | |
121 } | |
122 | |
123 hb_face_t* HarfBuzzFace::createFace() | 103 hb_face_t* HarfBuzzFace::createFace() |
124 { | 104 { |
125 // It seems that CTFontCopyTable of MacOSX10.5 sdk doesn't work for | 105 hb_face_t* face = hb_coretext_face_create(m_platformData->cgFont()); |
126 // OpenType layout tables(GDEF, GSUB, GPOS). Use CGFontCopyTableForTag inste
ad. | |
127 hb_face_t* face = hb_face_create_for_tables(harfBuzzCoreTextGetTable, m_plat
formData->cgFont(), 0); | |
128 ASSERT(face); | 106 ASSERT(face); |
129 return face; | 107 return face; |
130 } | 108 } |
131 | 109 |
132 hb_font_t* HarfBuzzFace::createFont() | 110 hb_font_t* HarfBuzzFace::createFont() |
133 { | 111 { |
134 hb_font_t* font = hb_font_create(m_face); | 112 hb_font_t* font = hb_font_create(m_face); |
135 hb_font_set_funcs(font, harfBuzzCoreTextGetFontFuncs(), m_platformData, 0); | 113 hb_font_set_funcs(font, harfBuzzCoreTextGetFontFuncs(), m_platformData, 0); |
136 const float size = m_platformData->m_size; | 114 const float size = m_platformData->m_size; |
137 hb_font_set_ppem(font, size, size); | 115 hb_font_set_ppem(font, size, size); |
138 const int scale = (1 << 16) * static_cast<int>(size); | 116 const int scale = (1 << 16) * static_cast<int>(size); |
139 hb_font_set_scale(font, scale, scale); | 117 hb_font_set_scale(font, scale, scale); |
140 hb_font_make_immutable(font); | 118 hb_font_make_immutable(font); |
141 return font; | 119 return font; |
142 } | 120 } |
143 | 121 |
144 GlyphBufferAdvance HarfBuzzShaper::createGlyphBufferAdvance(float width, float h
eight) | 122 GlyphBufferAdvance HarfBuzzShaper::createGlyphBufferAdvance(float width, float h
eight) |
145 { | 123 { |
146 return CGSizeMake(width, height); | 124 return CGSizeMake(width, height); |
147 } | 125 } |
148 | 126 |
149 } // namespace WebCore | 127 } // namespace WebCore |
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