SkFontHost_win.cpp revision 3f43f8ab9cd3ba0ea83f5ae0659c21f101dfca7a
1ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com 2ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com/* 3ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com * Copyright 2006 The Android Open Source Project 4ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com * 5ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com * Use of this source code is governed by a BSD-style license that can be 6ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com * found in the LICENSE file. 7ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com */ 8ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 9ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkAdvancedTypefaceMetrics.h" 10a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include "SkBase64.h" 111bfe01d06b896eca94c80d9af9a6bb30216b5e42bungeman@google.com#include "SkColorPriv.h" 12a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include "SkData.h" 13a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include "SkDescriptor.h" 14e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com#include "SkFontDescriptor.h" 15a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include "SkFontHost.h" 16bbe50131413098bffed9186660c41f047d881596bungeman@google.com#include "SkGlyph.h" 1727f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com#include "SkHRESULT.h" 1897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com#include "SkMaskGamma.h" 19d3fbd34099a530b5415c95b1f2f8149ac417b9b3bungeman@google.com#include "SkMatrix22.h" 207bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com#include "SkOTTable_maxp.h" 21a980269c2498836101146adc729ef780fb89824ebungeman@google.com#include "SkOTTable_name.h" 22a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include "SkOTUtils.h" 2327889877c0e3c909dd4afd7b5e7b1d58cbf61ae6reed@google.com#include "SkPath.h" 24b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com#include "SkSFNTHeader.h" 25ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkStream.h" 26a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include "SkString.h" 2705a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com#include "SkTemplates.h" 28ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkThread.h" 29ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkTypeface_win.h" 3059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com#include "SkTypefaceCache.h" 31ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkUtils.h" 32ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 33a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include "SkTypes.h" 34a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include <tchar.h> 35a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include <usp10.h> 36a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include <objbase.h> 37ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 38f210f505ffffccc15ae5e91f8ccb9763ba7fc152reed@google.comstatic void (*gEnsureLOGFONTAccessibleProc)(const LOGFONT&); 39f210f505ffffccc15ae5e91f8ccb9763ba7fc152reed@google.com 40f210f505ffffccc15ae5e91f8ccb9763ba7fc152reed@google.comvoid SkTypeface_SetEnsureLOGFONTAccessibleProc(void (*proc)(const LOGFONT&)) { 41f210f505ffffccc15ae5e91f8ccb9763ba7fc152reed@google.com gEnsureLOGFONTAccessibleProc = proc; 42f210f505ffffccc15ae5e91f8ccb9763ba7fc152reed@google.com} 43f210f505ffffccc15ae5e91f8ccb9763ba7fc152reed@google.com 44055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.comstatic void call_ensure_accessible(const LOGFONT& lf) { 45055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com if (gEnsureLOGFONTAccessibleProc) { 46055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com gEnsureLOGFONTAccessibleProc(lf); 47055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com } 48055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com} 49055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com 50055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com/////////////////////////////////////////////////////////////////////////////// 51055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com 526f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com// always packed xxRRGGBB 536f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.comtypedef uint32_t SkGdiRGB; 546f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com 55a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com// define this in your Makefile or .gyp to enforce AA requests 56a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com// which GDI ignores at small sizes. This flag guarantees AA 57a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com// for rotated text, regardless of GDI's notions. 58a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com//#define SK_ENFORCE_ROTATED_TEXT_AA_ON_WINDOWS 59a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 6082a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.comstatic bool isLCD(const SkScalerContext::Rec& rec) { 61d54d3fc82456f8789b3e4dff40faeb7b670bcf4breed return SkMask::kLCD16_Format == rec.fMaskFormat; 6282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com} 6382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 64a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.comstatic bool bothZero(SkScalar a, SkScalar b) { 65a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com return 0 == a && 0 == b; 66a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com} 67a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 68a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com// returns false if there is any non-90-rotation or skew 69a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.comstatic bool isAxisAligned(const SkScalerContext::Rec& rec) { 70a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com return 0 == rec.fPreSkewX && 71a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com (bothZero(rec.fPost2x2[0][1], rec.fPost2x2[1][0]) || 72a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com bothZero(rec.fPost2x2[0][0], rec.fPost2x2[1][1])); 73a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com} 74a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 75a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.comstatic bool needToRenderWithSkia(const SkScalerContext::Rec& rec) { 76a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com#ifdef SK_ENFORCE_ROTATED_TEXT_AA_ON_WINDOWS 77a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // What we really want to catch is when GDI will ignore the AA request and give 78a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // us BW instead. Smallish rotated text is one heuristic, so this code is just 79a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // an approximation. We shouldn't need to do this for larger sizes, but at those 80a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // sizes, the quality difference gets less and less between our general 81a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // scanconverter and GDI's. 82a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com if (SkMask::kA8_Format == rec.fMaskFormat && !isAxisAligned(rec)) { 83a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com return true; 84a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com } 85a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com#endif 860abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return rec.getHinting() == SkPaint::kNo_Hinting || rec.getHinting() == SkPaint::kSlight_Hinting; 87a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com} 88a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 89ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comusing namespace skia_advanced_typeface_metrics_utils; 90ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 91a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.comstatic void tchar_to_skstring(const TCHAR t[], SkString* s) { 92484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com#ifdef UNICODE 93484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com size_t sSize = WideCharToMultiByte(CP_UTF8, 0, t, -1, NULL, 0, NULL, NULL); 94484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com s->resize(sSize); 95484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com WideCharToMultiByte(CP_UTF8, 0, t, -1, s->writable_str(), sSize, NULL, NULL); 96484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com#else 97484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com s->set(t); 98484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com#endif 99484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com} 100484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 101a980269c2498836101146adc729ef780fb89824ebungeman@google.comstatic void dcfontname_to_skstring(HDC deviceContext, const LOGFONT& lf, SkString* familyName) { 102a980269c2498836101146adc729ef780fb89824ebungeman@google.com int fontNameLen; //length of fontName in TCHARS. 103a980269c2498836101146adc729ef780fb89824ebungeman@google.com if (0 == (fontNameLen = GetTextFace(deviceContext, 0, NULL))) { 104a980269c2498836101146adc729ef780fb89824ebungeman@google.com call_ensure_accessible(lf); 105a980269c2498836101146adc729ef780fb89824ebungeman@google.com if (0 == (fontNameLen = GetTextFace(deviceContext, 0, NULL))) { 106a980269c2498836101146adc729ef780fb89824ebungeman@google.com fontNameLen = 0; 107a980269c2498836101146adc729ef780fb89824ebungeman@google.com } 108a980269c2498836101146adc729ef780fb89824ebungeman@google.com } 109a980269c2498836101146adc729ef780fb89824ebungeman@google.com 110a980269c2498836101146adc729ef780fb89824ebungeman@google.com SkAutoSTArray<LF_FULLFACESIZE, TCHAR> fontName(fontNameLen+1); 111a980269c2498836101146adc729ef780fb89824ebungeman@google.com if (0 == GetTextFace(deviceContext, fontNameLen, fontName.get())) { 112a980269c2498836101146adc729ef780fb89824ebungeman@google.com call_ensure_accessible(lf); 113a980269c2498836101146adc729ef780fb89824ebungeman@google.com if (0 == GetTextFace(deviceContext, fontNameLen, fontName.get())) { 114a980269c2498836101146adc729ef780fb89824ebungeman@google.com fontName[0] = 0; 115a980269c2498836101146adc729ef780fb89824ebungeman@google.com } 116a980269c2498836101146adc729ef780fb89824ebungeman@google.com } 117a980269c2498836101146adc729ef780fb89824ebungeman@google.com 118a980269c2498836101146adc729ef780fb89824ebungeman@google.com tchar_to_skstring(fontName.get(), familyName); 119a980269c2498836101146adc729ef780fb89824ebungeman@google.com} 120a980269c2498836101146adc729ef780fb89824ebungeman@google.com 121ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic void make_canonical(LOGFONT* lf) { 12253cbb0baac09e60e7633c15301a29a83afb1a8debungeman@google.com lf->lfHeight = -64; 12359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf->lfQuality = CLEARTYPE_QUALITY;//PROOF_QUALITY; 12459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf->lfCharSet = DEFAULT_CHARSET; 12582a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com// lf->lfClipPrecision = 64; 12659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com} 12759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 128a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungemanstatic SkFontStyle get_style(const LOGFONT& lf) { 129a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungeman return SkFontStyle(lf.lfWeight, 130a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungeman lf.lfWidth, 131a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungeman lf.lfItalic ? SkFontStyle::kItalic_Slant : SkFontStyle::kUpright_Slant); 132ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 133ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 134ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic inline FIXED SkFixedToFIXED(SkFixed x) { 135ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return *(FIXED*)(&x); 136ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 137a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.comstatic inline SkFixed SkFIXEDToFixed(FIXED x) { 138a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com return *(SkFixed*)(&x); 139a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com} 140ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 141ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic inline FIXED SkScalarToFIXED(SkScalar x) { 142ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkFixedToFIXED(SkScalarToFixed(x)); 143ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 144ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1454732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.comstatic inline SkScalar SkFIXEDToScalar(FIXED x) { 1464732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com return SkFixedToScalar(SkFIXEDToFixed(x)); 1474732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com} 1484732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com 1497bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.comstatic unsigned calculateGlyphCount(HDC hdc, const LOGFONT& lf) { 1507bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com TEXTMETRIC textMetric; 1517bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com if (0 == GetTextMetrics(hdc, &textMetric)) { 1527bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com textMetric.tmPitchAndFamily = TMPF_VECTOR; 1537bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com call_ensure_accessible(lf); 1547bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com GetTextMetrics(hdc, &textMetric); 1557bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com } 1567bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 1577bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com if (!(textMetric.tmPitchAndFamily & TMPF_VECTOR)) { 1587bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com return textMetric.tmLastChar; 1597bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com } 1607bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 161ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // The 'maxp' table stores the number of glyphs at offset 4, in 2 bytes. 162ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com uint16_t glyphs; 1637bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com if (GDI_ERROR != GetFontData(hdc, SkOTTableMaximumProfile::TAG, 4, &glyphs, sizeof(glyphs))) { 164ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkEndian_SwapBE16(glyphs); 165ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1665aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org 167ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Binary search for glyph count. 168ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com static const MAT2 mat2 = {{0, 1}, {0, 0}, {0, 0}, {0, 1}}; 169ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int32_t max = SK_MaxU16 + 1; 170ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int32_t min = 0; 171ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com GLYPHMETRICS gm; 172ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com while (min < max) { 173ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int32_t mid = min + ((max - min) / 2); 174ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (GetGlyphOutlineW(hdc, mid, GGO_METRICS | GGO_GLYPH_INDEX, &gm, 0, 175ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com NULL, &mat2) == GDI_ERROR) { 176ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com max = mid; 177ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 178ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com min = mid + 1; 179ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 180ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 181ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(min == max); 182ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return min; 183ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 184ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1857bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.comstatic unsigned calculateUPEM(HDC hdc, const LOGFONT& lf) { 1867bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com TEXTMETRIC textMetric; 1877bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com if (0 == GetTextMetrics(hdc, &textMetric)) { 1887bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com textMetric.tmPitchAndFamily = TMPF_VECTOR; 1897bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com call_ensure_accessible(lf); 1907bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com GetTextMetrics(hdc, &textMetric); 1917bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com } 1927bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 1937bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com if (!(textMetric.tmPitchAndFamily & TMPF_VECTOR)) { 1947bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com return textMetric.tmMaxCharWidth; 1957bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com } 1967bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 1977bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com OUTLINETEXTMETRIC otm; 1987bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com unsigned int otmRet = GetOutlineTextMetrics(hdc, sizeof(otm), &otm); 1997bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com if (0 == otmRet) { 2007bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com call_ensure_accessible(lf); 2017bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com otmRet = GetOutlineTextMetrics(hdc, sizeof(otm), &otm); 2027bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com } 2037bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 2047bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com return (0 == otmRet) ? 0 : otm.otmEMSquare; 2057bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com} 2067bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 207ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comclass LogFontTypeface : public SkTypeface { 208ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.compublic: 209a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungeman LogFontTypeface(const SkFontStyle& style, const LOGFONT& lf, bool serializeAsStream) 210a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungeman : SkTypeface(style, SkTypefaceCache::NewFontID(), false) 211a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungeman , fLogFont(lf) 212a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungeman , fSerializeAsStream(serializeAsStream) 213a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungeman { 214cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com 215cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com // If the font has cubic outlines, it will not be rendered with ClearType. 216cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com HFONT font = CreateFontIndirect(&lf); 217cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com 218cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com HDC deviceContext = ::CreateCompatibleDC(NULL); 219cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com HFONT savefont = (HFONT)SelectObject(deviceContext, font); 220cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com 221cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com TEXTMETRIC textMetric; 222cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com if (0 == GetTextMetrics(deviceContext, &textMetric)) { 223055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com call_ensure_accessible(lf); 224cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com if (0 == GetTextMetrics(deviceContext, &textMetric)) { 225cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com textMetric.tmPitchAndFamily = TMPF_TRUETYPE; 226cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com } 227cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com } 228cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com if (deviceContext) { 229cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com ::SelectObject(deviceContext, savefont); 230cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com ::DeleteDC(deviceContext); 231cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com } 232cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com if (font) { 233cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com ::DeleteObject(font); 234cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com } 235cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com 236fe74765f0d302669ae49e68074492bdfe0ce6e6fbungeman@google.com // The fixed pitch bit is set if the font is *not* fixed pitch. 237fe74765f0d302669ae49e68074492bdfe0ce6e6fbungeman@google.com this->setIsFixedPitch((textMetric.tmPitchAndFamily & TMPF_FIXED_PITCH) == 0); 238fe74765f0d302669ae49e68074492bdfe0ce6e6fbungeman@google.com 239cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com // Used a logfont on a memory context, should never get a device font. 240cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com // Therefore all TMPF_DEVICE will be PostScript (cubic) fonts. 241cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com fCanBeLCD = !((textMetric.tmPitchAndFamily & TMPF_VECTOR) && 242cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com (textMetric.tmPitchAndFamily & TMPF_DEVICE)); 243cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com } 244ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 24559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LOGFONT fLogFont; 246e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com bool fSerializeAsStream; 247cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com bool fCanBeLCD; 248ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 24959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com static LogFontTypeface* Create(const LOGFONT& lf) { 250a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungeman return new LogFontTypeface(get_style(lf), lf, false); 251ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 2520da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.com 253055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com static void EnsureAccessible(const SkTypeface* face) { 254055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com call_ensure_accessible(static_cast<const LogFontTypeface*>(face)->fLogFont); 255055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com } 256055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com 2570da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.comprotected: 25872c9faab45124e08c85f70ca38536914862d947cmtklein SkStream* onOpenStream(int* ttcIndex) const SK_OVERRIDE; 25972c9faab45124e08c85f70ca38536914862d947cmtklein SkScalerContext* onCreateScalerContext(const SkDescriptor*) const SK_OVERRIDE; 26072c9faab45124e08c85f70ca38536914862d947cmtklein void onFilterRec(SkScalerContextRec*) const SK_OVERRIDE; 2612689f615e364dc48ad73826564f5b13d2329179dreed@google.com virtual SkAdvancedTypefaceMetrics* onGetAdvancedTypefaceMetrics( 2622689f615e364dc48ad73826564f5b13d2329179dreed@google.com SkAdvancedTypefaceMetrics::PerGlyphInfo, 2632689f615e364dc48ad73826564f5b13d2329179dreed@google.com const uint32_t*, uint32_t) const SK_OVERRIDE; 26472c9faab45124e08c85f70ca38536914862d947cmtklein void onGetFontDescriptor(SkFontDescriptor*, bool*) const SK_OVERRIDE; 2653c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com virtual int onCharsToGlyphs(const void* chars, Encoding encoding, 2663c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com uint16_t glyphs[], int glyphCount) const SK_OVERRIDE; 26772c9faab45124e08c85f70ca38536914862d947cmtklein int onCountGlyphs() const SK_OVERRIDE; 26872c9faab45124e08c85f70ca38536914862d947cmtklein int onGetUPEM() const SK_OVERRIDE; 26972c9faab45124e08c85f70ca38536914862d947cmtklein void onGetFamilyName(SkString* familyName) const SK_OVERRIDE; 27072c9faab45124e08c85f70ca38536914862d947cmtklein SkTypeface::LocalizedStrings* onCreateFamilyNameIterator() const SK_OVERRIDE; 27172c9faab45124e08c85f70ca38536914862d947cmtklein int onGetTableTags(SkFontTableTag tags[]) const SK_OVERRIDE; 272b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com virtual size_t onGetTableData(SkFontTableTag, size_t offset, 273b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com size_t length, void* data) const SK_OVERRIDE; 274ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com}; 275ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 276a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comclass FontMemResourceTypeface : public LogFontTypeface { 277a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.compublic: 278a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com /** 279a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com * The created FontMemResourceTypeface takes ownership of fontMemResource. 280a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 281a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com static FontMemResourceTypeface* Create(const LOGFONT& lf, HANDLE fontMemResource) { 282a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungeman return new FontMemResourceTypeface(get_style(lf), lf, fontMemResource); 283a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 284a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 285a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comprotected: 28672c9faab45124e08c85f70ca38536914862d947cmtklein void weak_dispose() const SK_OVERRIDE { 287a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com RemoveFontMemResourceEx(fFontMemResource); 288a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com //SkTypefaceCache::Remove(this); 289a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com INHERITED::weak_dispose(); 290a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 291a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 292a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comprivate: 29372cf4fcafa54cfa04c5ec7cb8eaa3acb144712ddbungeman@google.com /** 29472cf4fcafa54cfa04c5ec7cb8eaa3acb144712ddbungeman@google.com * Takes ownership of fontMemResource. 29572cf4fcafa54cfa04c5ec7cb8eaa3acb144712ddbungeman@google.com */ 296a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungeman FontMemResourceTypeface(const SkFontStyle& style, const LOGFONT& lf, HANDLE fontMemResource) 297a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungeman : LogFontTypeface(style, lf, true), fFontMemResource(fontMemResource) 298a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungeman { } 29972cf4fcafa54cfa04c5ec7cb8eaa3acb144712ddbungeman@google.com 30072cf4fcafa54cfa04c5ec7cb8eaa3acb144712ddbungeman@google.com HANDLE fFontMemResource; 30172cf4fcafa54cfa04c5ec7cb8eaa3acb144712ddbungeman@google.com 302a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com typedef LogFontTypeface INHERITED; 303a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com}; 304a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 305ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic const LOGFONT& get_default_font() { 306ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com static LOGFONT gDefaultFont; 307ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return gDefaultFont; 308ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 309ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 310a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungemanstatic bool FindByLogFont(SkTypeface* face, const SkFontStyle& requestedStyle, void* ctx) { 311a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com LogFontTypeface* lface = static_cast<LogFontTypeface*>(face); 31259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com const LOGFONT* lf = reinterpret_cast<const LOGFONT*>(ctx); 313ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 314a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return lface && 315a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com get_style(lface->fLogFont) == requestedStyle && 31659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com !memcmp(&lface->fLogFont, lf, sizeof(LOGFONT)); 31759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com} 31859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 31959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com/** 32059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com * This guy is public. It first searches the cache, and if a match is not found, 32159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com * it creates a new face. 32259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com */ 32359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.comSkTypeface* SkCreateTypefaceFromLOGFONT(const LOGFONT& origLF) { 32459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LOGFONT lf = origLF; 32559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com make_canonical(&lf); 326ee51d1a6e43615ae640410013c36d2d9873e6aa5bungeman@google.com SkTypeface* face = SkTypefaceCache::FindByProcAndRef(FindByLogFont, &lf); 327ee51d1a6e43615ae640410013c36d2d9873e6aa5bungeman@google.com if (NULL == face) { 32859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com face = LogFontTypeface::Create(lf); 32990d812b77ab025d5fd01dab904287f5c5bf56228bungeman@google.com SkTypefaceCache::Add(face, get_style(lf)); 33059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } 33159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com return face; 332ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 333ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 334db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com/** 335a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com * The created SkTypeface takes ownership of fontMemResource. 336a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 337a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comSkTypeface* SkCreateFontMemResourceTypefaceFromLOGFONT(const LOGFONT& origLF, HANDLE fontMemResource) { 338a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com LOGFONT lf = origLF; 339a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com make_canonical(&lf); 34060b6e9dbbc492f987a5b887dff60aec107ab70d0mtklein // We'll never get a cache hit, so no point in putting this in SkTypefaceCache. 34160b6e9dbbc492f987a5b887dff60aec107ab70d0mtklein return FontMemResourceTypeface::Create(lf, fontMemResource); 342a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com} 343a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 344a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 345db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com * This guy is public 346db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com */ 347db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.comvoid SkLOGFONTFromTypeface(const SkTypeface* face, LOGFONT* lf) { 348db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com if (NULL == face) { 349db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com *lf = get_default_font(); 350db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com } else { 351a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com *lf = static_cast<const LogFontTypeface*>(face)->fLogFont; 352db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com } 353db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com} 354db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com 3556744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// Construct Glyph to Unicode table. 3566744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// Unicode code points that require conjugate pairs in utf16 are not 3576744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// supported. 3586744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// TODO(arthurhsu): Add support for conjugate pairs. It looks like that may 3596744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// require parsing the TTF cmap table (platform 4, encoding 12) directly instead 3606744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// of calling GetFontUnicodeRange(). 3616744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.orgstatic void populate_glyph_to_unicode(HDC fontHdc, const unsigned glyphCount, 3626744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkTDArray<SkUnichar>* glyphToUnicode) { 3636744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org DWORD glyphSetBufferSize = GetFontUnicodeRanges(fontHdc, NULL); 3646744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org if (!glyphSetBufferSize) { 3656744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org return; 3666744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 3676744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 3686744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkAutoTDeleteArray<BYTE> glyphSetBuffer(new BYTE[glyphSetBufferSize]); 3696744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org GLYPHSET* glyphSet = 3706744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org reinterpret_cast<LPGLYPHSET>(glyphSetBuffer.get()); 3716744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org if (GetFontUnicodeRanges(fontHdc, glyphSet) != glyphSetBufferSize) { 3726744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org return; 3736744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 3746744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 3756744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org glyphToUnicode->setCount(glyphCount); 3766744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org memset(glyphToUnicode->begin(), 0, glyphCount * sizeof(SkUnichar)); 3776744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org for (DWORD i = 0; i < glyphSet->cRanges; ++i) { 3786744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // There is no guarantee that within a Unicode range, the corresponding 3796744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // glyph id in a font file are continuous. So, even if we have ranges, 3806744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // we can't just use the first and last entry of the range to compute 3816744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // result. We need to enumerate them one by one. 3826744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org int count = glyphSet->ranges[i].cGlyphs; 3836744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkAutoTArray<WCHAR> chars(count + 1); 3846744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org chars[count] = 0; // termintate string 3856744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkAutoTArray<WORD> glyph(count); 3866744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org for (USHORT j = 0; j < count; ++j) { 3876744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org chars[j] = glyphSet->ranges[i].wcLow + j; 3886744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 3896744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org GetGlyphIndicesW(fontHdc, chars.get(), count, glyph.get(), 3906744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org GGI_MARK_NONEXISTING_GLYPHS); 3916744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // If the glyph ID is valid, and the glyph is not mapped, then we will 3926744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // fill in the char id into the vector. If the glyph is mapped already, 3936744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // skip it. 3946744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // TODO(arthurhsu): better improve this. e.g. Get all used char ids from 3956744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // font cache, then generate this mapping table from there. It's 3966744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // unlikely to have collisions since glyph reuse happens mostly for 3976744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // different Unicode pages. 3986744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org for (USHORT j = 0; j < count; ++j) { 3996744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org if (glyph[j] != 0xffff && glyph[j] < glyphCount && 4006744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org (*glyphToUnicode)[glyph[j]] == 0) { 4016744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org (*glyphToUnicode)[glyph[j]] = chars[j]; 4026744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 4036744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 4046744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 4056744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org} 4066744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 40799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com////////////////////////////////////////////////////////////////////////////////////// 40899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 40999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.comstatic int alignTo32(int n) { 41099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com return (n + 31) & ~31; 41199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com} 41299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 41399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.comstruct MyBitmapInfo : public BITMAPINFO { 41499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com RGBQUAD fMoreSpaceForColors[1]; 41599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com}; 41699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 41799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.comclass HDCOffscreen { 41899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.compublic: 41999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HDCOffscreen() { 42099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fFont = 0; 42199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fDC = 0; 42299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fBM = 0; 42399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fBits = NULL; 42499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fWidth = fHeight = 0; 42599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fIsBW = false; 42699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 42799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 42899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com ~HDCOffscreen() { 42999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (fDC) { 43099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com DeleteDC(fDC); 43199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 43299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (fBM) { 43399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com DeleteObject(fBM); 43499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 43599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 43699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 43799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com void init(HFONT font, const XFORM& xform) { 43899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fFont = font; 43999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fXform = xform; 44099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 44199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 44297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const void* draw(const SkGlyph&, bool isBW, size_t* srcRBPtr); 44399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 44499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.comprivate: 44599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HDC fDC; 44699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HBITMAP fBM; 44799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HFONT fFont; 44899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com XFORM fXform; 44999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com void* fBits; // points into fBM 45099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com int fWidth; 45199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com int fHeight; 45299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com bool fIsBW; 45399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com}; 45499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 455754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.comconst void* HDCOffscreen::draw(const SkGlyph& glyph, bool isBW, 45697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com size_t* srcRBPtr) { 45784e22d847fc84727bc220947162363ee1fe068fcreed@google.com // Can we share the scalercontext's fDDC, so we don't need to create 45884e22d847fc84727bc220947162363ee1fe068fcreed@google.com // a separate fDC here? 45999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (0 == fDC) { 46099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fDC = CreateCompatibleDC(0); 46199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (0 == fDC) { 46299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com return NULL; 46399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 46499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SetGraphicsMode(fDC, GM_ADVANCED); 46599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SetBkMode(fDC, TRANSPARENT); 46699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SetTextAlign(fDC, TA_LEFT | TA_BASELINE); 46799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SelectObject(fDC, fFont); 46897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com 46997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com COLORREF color = 0x00FFFFFF; 470b58a639b2fbe919489654bb506efdb024a308a8ebsalomon@google.com SkDEBUGCODE(COLORREF prev =) SetTextColor(fDC, color); 47197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com SkASSERT(prev != CLR_INVALID); 47299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 47399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 47499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (fBM && (fIsBW != isBW || fWidth < glyph.fWidth || fHeight < glyph.fHeight)) { 47599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com DeleteObject(fBM); 47699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fBM = 0; 47799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 478754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com fIsBW = isBW; 47999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 48099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fWidth = SkMax32(fWidth, glyph.fWidth); 48199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fHeight = SkMax32(fHeight, glyph.fHeight); 48299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 48399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com int biWidth = isBW ? alignTo32(fWidth) : fWidth; 48499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 48599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (0 == fBM) { 48699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com MyBitmapInfo info; 48799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com sk_bzero(&info, sizeof(info)); 48899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (isBW) { 48999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com RGBQUAD blackQuad = { 0, 0, 0, 0 }; 49099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com RGBQUAD whiteQuad = { 0xFF, 0xFF, 0xFF, 0 }; 49199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiColors[0] = blackQuad; 49299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiColors[1] = whiteQuad; 49399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 49499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biSize = sizeof(info.bmiHeader); 49599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biWidth = biWidth; 49699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biHeight = fHeight; 49799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biPlanes = 1; 49899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biBitCount = isBW ? 1 : 32; 49999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biCompression = BI_RGB; 50099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (isBW) { 50199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biClrUsed = 2; 50299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 50399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fBM = CreateDIBSection(fDC, &info, DIB_RGB_COLORS, &fBits, 0, 0); 50499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (0 == fBM) { 50599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com return NULL; 50699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 50799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SelectObject(fDC, fBM); 50899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 50999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 51099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com // erase 51199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com size_t srcRB = isBW ? (biWidth >> 3) : (fWidth << 2); 51299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com size_t size = fHeight * srcRB; 51397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com memset(fBits, 0, size); 51499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 51599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com XFORM xform = fXform; 51699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com xform.eDx = (float)-glyph.fLeft; 51799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com xform.eDy = (float)-glyph.fTop; 51899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SetWorldTransform(fDC, &xform); 51999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 52099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com uint16_t glyphID = glyph.getGlyphID(); 52139698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com BOOL ret = ExtTextOutW(fDC, 0, 0, ETO_GLYPH_INDEX, NULL, reinterpret_cast<LPCWSTR>(&glyphID), 1, NULL); 52299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com GdiFlush(); 52339698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (0 == ret) { 52439698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com return NULL; 52539698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 52699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com *srcRBPtr = srcRB; 52799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com // offset to the start of the image 52899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com return (const char*)fBits + (fHeight - glyph.fHeight) * srcRB; 52999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com} 53099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 531b8a5c618d2e18d71707ae4dcafbe5153d7ff427freed@google.com////////////////////////////////////////////////////////////////////////////// 5320abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#define BUFFERSIZE (1 << 13) 53359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 53430ddd615c447fed73286151b463af20d309c85f1reed@google.comclass SkScalerContext_GDI : public SkScalerContext { 535ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.compublic: 53630ddd615c447fed73286151b463af20d309c85f1reed@google.com SkScalerContext_GDI(SkTypeface*, const SkDescriptor* desc); 53730ddd615c447fed73286151b463af20d309c85f1reed@google.com virtual ~SkScalerContext_GDI(); 538ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 53984e22d847fc84727bc220947162363ee1fe068fcreed@google.com // Returns true if the constructor was able to complete all of its 54084e22d847fc84727bc220947162363ee1fe068fcreed@google.com // initializations (which may include calling GDI). 54184e22d847fc84727bc220947162363ee1fe068fcreed@google.com bool isValid() const; 54284e22d847fc84727bc220947162363ee1fe068fcreed@google.com 543ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comprotected: 54472c9faab45124e08c85f70ca38536914862d947cmtklein unsigned generateGlyphCount() SK_OVERRIDE; 54572c9faab45124e08c85f70ca38536914862d947cmtklein uint16_t generateCharToGlyph(SkUnichar uni) SK_OVERRIDE; 54672c9faab45124e08c85f70ca38536914862d947cmtklein void generateAdvance(SkGlyph* glyph) SK_OVERRIDE; 54772c9faab45124e08c85f70ca38536914862d947cmtklein void generateMetrics(SkGlyph* glyph) SK_OVERRIDE; 54872c9faab45124e08c85f70ca38536914862d947cmtklein void generateImage(const SkGlyph& glyph) SK_OVERRIDE; 54972c9faab45124e08c85f70ca38536914862d947cmtklein void generatePath(const SkGlyph& glyph, SkPath* path) SK_OVERRIDE; 55072c9faab45124e08c85f70ca38536914862d947cmtklein void generateFontMetrics(SkPaint::FontMetrics*) SK_OVERRIDE; 55199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 552ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comprivate: 5530abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com DWORD getGDIGlyphPath(const SkGlyph& glyph, UINT flags, 5540abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkAutoSTMalloc<BUFFERSIZE, uint8_t>* glyphbuf); 5550abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 55699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HDCOffscreen fOffscreen; 5570abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com /** fGsA is the non-rotational part of total matrix without the text height scale. 5580abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com * Used to find the magnitude of advances. 5590abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com */ 5600abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com MAT2 fGsA; 5616a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com /** The total matrix without the textSize. */ 562ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com MAT2 fMat22; 5636a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com /** Scales font to EM size. */ 5646a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com MAT2 fHighResMat22; 565ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HDC fDDC; 566ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT fSavefont; 567ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT fFont; 568ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SCRIPT_CACHE fSC; 569ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int fGlyphCount; 5701dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 5716a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com /** The total matrix which also removes EM scale. */ 5721dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com SkMatrix fHiResMatrix; 5730abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com /** fG_inv is the inverse of the rotational part of the total matrix. 5740abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com * Used to set the direction of advances. 5750abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com */ 5760abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkMatrix fG_inv; 577a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com enum Type { 5784732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com kTrueType_Type, kBitmap_Type, kLine_Type 579a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } fType; 580a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com TEXTMETRIC fTM; 581ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com}; 582ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 583ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic FIXED float2FIXED(float x) { 584ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkFixedToFIXED(SkFloatToFixed(x)); 585ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 586ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 58782a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.comstatic BYTE compute_quality(const SkScalerContext::Rec& rec) { 58882a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com switch (rec.fMaskFormat) { 58982a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com case SkMask::kBW_Format: 59082a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com return NONANTIALIASED_QUALITY; 59182a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com case SkMask::kLCD16_Format: 59282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com return CLEARTYPE_QUALITY; 59382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com default: 5948351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com if (rec.fFlags & SkScalerContext::kGenA8FromLCD_Flag) { 5958351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com return CLEARTYPE_QUALITY; 5968351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com } else { 5978351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com return ANTIALIASED_QUALITY; 5988351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com } 59982a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com } 60082a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com} 60182a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 60230ddd615c447fed73286151b463af20d309c85f1reed@google.comSkScalerContext_GDI::SkScalerContext_GDI(SkTypeface* rawTypeface, 6030da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.com const SkDescriptor* desc) 604055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com : SkScalerContext(rawTypeface, desc) 605055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com , fDDC(0) 606055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com , fSavefont(0) 60784e22d847fc84727bc220947162363ee1fe068fcreed@google.com , fFont(0) 608055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com , fSC(0) 60905a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com , fGlyphCount(-1) 61005a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com{ 611055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com LogFontTypeface* typeface = reinterpret_cast<LogFontTypeface*>(rawTypeface); 612055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com 613ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fDDC = ::CreateCompatibleDC(NULL); 61484e22d847fc84727bc220947162363ee1fe068fcreed@google.com if (!fDDC) { 61584e22d847fc84727bc220947162363ee1fe068fcreed@google.com return; 61684e22d847fc84727bc220947162363ee1fe068fcreed@google.com } 6171dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com SetGraphicsMode(fDDC, GM_ADVANCED); 618ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SetBkMode(fDDC, TRANSPARENT); 61927e21fe577211c1c40cbf40d0385b02c69d04522skia.committer@gmail.com 62011ba3199f3edc7883ada4fd941d231f8f4883720bungeman@google.com // When GDI hinting, remove the entire Y scale to prevent 'subpixel' metrics. 6215f14c5e038a16c80d50c2f87ae7c8775f977456cbungeman // When not hinting, remove only the gdiTextSize scale which will be applied by GDI. 6225f14c5e038a16c80d50c2f87ae7c8775f977456cbungeman SkScalerContextRec::PreMatrixScale scaleConstraints = 6235f14c5e038a16c80d50c2f87ae7c8775f977456cbungeman (fRec.getHinting() == SkPaint::kNo_Hinting || fRec.getHinting() == SkPaint::kSlight_Hinting) 6245f14c5e038a16c80d50c2f87ae7c8775f977456cbungeman ? SkScalerContextRec::kVerticalInteger_PreMatrixScale 6255f14c5e038a16c80d50c2f87ae7c8775f977456cbungeman : SkScalerContextRec::kVertical_PreMatrixScale; 6265f14c5e038a16c80d50c2f87ae7c8775f977456cbungeman SkVector scale; 6275f14c5e038a16c80d50c2f87ae7c8775f977456cbungeman SkMatrix sA; 6285f14c5e038a16c80d50c2f87ae7c8775f977456cbungeman SkMatrix GsA; 6295f14c5e038a16c80d50c2f87ae7c8775f977456cbungeman SkMatrix A; 6305f14c5e038a16c80d50c2f87ae7c8775f977456cbungeman fRec.computeMatrices(scaleConstraints, &scale, &sA, &GsA, &fG_inv, &A); 6310abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 6320abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fGsA.eM11 = SkScalarToFIXED(GsA.get(SkMatrix::kMScaleX)); 6330abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fGsA.eM12 = SkScalarToFIXED(-GsA.get(SkMatrix::kMSkewY)); // This should be ~0. 6340abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fGsA.eM21 = SkScalarToFIXED(-GsA.get(SkMatrix::kMSkewX)); 6350abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fGsA.eM22 = SkScalarToFIXED(GsA.get(SkMatrix::kMScaleY)); 6360abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 6375f14c5e038a16c80d50c2f87ae7c8775f977456cbungeman SkScalar gdiTextSize = scale.fY; 6385f14c5e038a16c80d50c2f87ae7c8775f977456cbungeman if (gdiTextSize == 0) { 6395f14c5e038a16c80d50c2f87ae7c8775f977456cbungeman gdiTextSize = SK_Scalar1; 6405f14c5e038a16c80d50c2f87ae7c8775f977456cbungeman } 641ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 642055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com LOGFONT lf = typeface->fLogFont; 64311ba3199f3edc7883ada4fd941d231f8f4883720bungeman@google.com lf.lfHeight = -SkScalarTruncToInt(gdiTextSize); 64482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com lf.lfQuality = compute_quality(fRec); 645ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fFont = CreateFontIndirect(&lf); 64684e22d847fc84727bc220947162363ee1fe068fcreed@google.com if (!fFont) { 64784e22d847fc84727bc220947162363ee1fe068fcreed@google.com return; 64884e22d847fc84727bc220947162363ee1fe068fcreed@google.com } 6491dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 650ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fSavefont = (HFONT)SelectObject(fDDC, fFont); 651a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 652a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (0 == GetTextMetrics(fDDC, &fTM)) { 653055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com call_ensure_accessible(lf); 654a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (0 == GetTextMetrics(fDDC, &fTM)) { 655a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fTM.tmPitchAndFamily = TMPF_TRUETYPE; 656a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 657a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 65890b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com 659d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com XFORM xform; 66090b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com if (fTM.tmPitchAndFamily & TMPF_VECTOR) { 6614732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com // Used a logfont on a memory context, should never get a device font. 6624732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com // Therefore all TMPF_DEVICE will be PostScript fonts. 6634732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com 6644732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com // If TMPF_VECTOR is set, one of TMPF_TRUETYPE or TMPF_DEVICE means that 6654732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com // we have an outline font. Otherwise we have a vector FON, which is 6664732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com // scalable, but not an outline font. 6674732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com // This was determined by testing with Type1 PFM/PFB and 6684732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com // OpenTypeCFF OTF, as well as looking at Wine bugs and sources. 6694732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com if (fTM.tmPitchAndFamily & (TMPF_TRUETYPE | TMPF_DEVICE)) { 6704732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com // Truetype or PostScript. 6714732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com fType = SkScalerContext_GDI::kTrueType_Type; 6724732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com } else { 6734732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com // Stroked FON. 6744732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com fType = SkScalerContext_GDI::kLine_Type; 6754732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com } 676a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 677d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // fPost2x2 is column-major, left handed (y down). 678d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // XFORM 2x2 is row-major, left handed (y down). 6790abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com xform.eM11 = SkScalarToFloat(sA.get(SkMatrix::kMScaleX)); 6800abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com xform.eM12 = SkScalarToFloat(sA.get(SkMatrix::kMSkewY)); 6810abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com xform.eM21 = SkScalarToFloat(sA.get(SkMatrix::kMSkewX)); 6820abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com xform.eM22 = SkScalarToFloat(sA.get(SkMatrix::kMScaleY)); 683d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eDx = 0; 684d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eDy = 0; 685d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com 686d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // MAT2 is row major, right handed (y up). 687d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM11 = float2FIXED(xform.eM11); 688d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM12 = float2FIXED(-xform.eM12); 689d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM21 = float2FIXED(-xform.eM21); 690d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM22 = float2FIXED(xform.eM22); 691a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 692a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (needToRenderWithSkia(fRec)) { 693a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com this->forceGenerateImageFromPath(); 694a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 695a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 69611ba3199f3edc7883ada4fd941d231f8f4883720bungeman@google.com // Create a hires matrix if we need linear metrics. 6970abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (this->isSubpixel()) { 6980abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com OUTLINETEXTMETRIC otm; 6990abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com UINT success = GetOutlineTextMetrics(fDDC, sizeof(otm), &otm); 7000abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (0 == success) { 7010abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com call_ensure_accessible(lf); 7020abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com success = GetOutlineTextMetrics(fDDC, sizeof(otm), &otm); 7030abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 7040abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (0 != success) { 70511ba3199f3edc7883ada4fd941d231f8f4883720bungeman@google.com SkScalar upem = SkIntToScalar(otm.otmEMSquare); 7066a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com 70711ba3199f3edc7883ada4fd941d231f8f4883720bungeman@google.com SkScalar gdiTextSizeToEMScale = upem / gdiTextSize; 70811ba3199f3edc7883ada4fd941d231f8f4883720bungeman@google.com fHighResMat22.eM11 = float2FIXED(gdiTextSizeToEMScale); 7096a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com fHighResMat22.eM12 = float2FIXED(0); 7106a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com fHighResMat22.eM21 = float2FIXED(0); 71111ba3199f3edc7883ada4fd941d231f8f4883720bungeman@google.com fHighResMat22.eM22 = float2FIXED(gdiTextSizeToEMScale); 7126a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com 71311ba3199f3edc7883ada4fd941d231f8f4883720bungeman@google.com SkScalar removeEMScale = SkScalarInvert(upem); 7146a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com fHiResMatrix = A; 71511ba3199f3edc7883ada4fd941d231f8f4883720bungeman@google.com fHiResMatrix.preScale(removeEMScale, removeEMScale); 7160abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 7170abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 7180abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 719a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } else { 720a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com // Assume bitmap 72130ddd615c447fed73286151b463af20d309c85f1reed@google.com fType = SkScalerContext_GDI::kBitmap_Type; 722a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 723d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM11 = 1.0f; 724d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM12 = 0.0f; 725d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM21 = 0.0f; 726d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM22 = 1.0f; 727d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eDx = 0.0f; 728d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eDy = 0.0f; 729a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 730d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // fPost2x2 is column-major, left handed (y down). 731d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // MAT2 is row major, right handed (y up). 732a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fMat22.eM11 = SkScalarToFIXED(fRec.fPost2x2[0][0]); 733d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM12 = SkScalarToFIXED(-fRec.fPost2x2[1][0]); 734a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fMat22.eM21 = SkScalarToFIXED(-fRec.fPost2x2[0][1]); 735d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM22 = SkScalarToFIXED(fRec.fPost2x2[1][1]); 736a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com } 73799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 738d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fOffscreen.init(fFont, xform); 739ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 740ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 74130ddd615c447fed73286151b463af20d309c85f1reed@google.comSkScalerContext_GDI::~SkScalerContext_GDI() { 742ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fDDC) { 743ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::SelectObject(fDDC, fSavefont); 744ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::DeleteDC(fDDC); 745ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 746ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fFont) { 747ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::DeleteObject(fFont); 748ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 749ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fSC) { 750ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::ScriptFreeCache(&fSC); 751ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 752ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 753ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 75430ddd615c447fed73286151b463af20d309c85f1reed@google.combool SkScalerContext_GDI::isValid() const { 75584e22d847fc84727bc220947162363ee1fe068fcreed@google.com return fDDC && fFont; 75684e22d847fc84727bc220947162363ee1fe068fcreed@google.com} 75784e22d847fc84727bc220947162363ee1fe068fcreed@google.com 75830ddd615c447fed73286151b463af20d309c85f1reed@google.comunsigned SkScalerContext_GDI::generateGlyphCount() { 759ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fGlyphCount < 0) { 7607bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com fGlyphCount = calculateGlyphCount( 7617bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com fDDC, static_cast<const LogFontTypeface*>(this->getTypeface())->fLogFont); 762ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 763ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return fGlyphCount; 764ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 765ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 76633346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.comuint16_t SkScalerContext_GDI::generateCharToGlyph(SkUnichar utf32) { 767ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com uint16_t index = 0; 76833346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com WCHAR utf16[2]; 769ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // TODO(ctguil): Support characters that generate more than one glyph. 77033346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com if (SkUTF16_FromUnichar(utf32, (uint16_t*)utf16) == 1) { 771ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Type1 fonts fail with uniscribe API. Use GetGlyphIndices for plane 0. 7727bd141dce43ea3405bc60c9c84e6f910b851b079skia.committer@gmail.com 77333346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com /** Real documentation for GetGlyphIndiciesW: 77433346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com * 77533346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com * When GGI_MARK_NONEXISTING_GLYPHS is not specified and a character does not map to a 77633346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com * glyph, then the 'default character's glyph is returned instead. The 'default character' 7774732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com * is available in fTM.tmDefaultChar. FON fonts have a default character, and there exists 7784732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com * a usDefaultChar in the 'OS/2' table, version 2 and later. If there is no 77933346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com * 'default character' specified by the font, then often the first character found is used. 78033346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com * 78133346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com * When GGI_MARK_NONEXISTING_GLYPHS is specified and a character does not map to a glyph, 78233346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com * then the glyph 0xFFFF is used. In Windows XP and earlier, Bitmap/Vector FON usually use 78333346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com * glyph 0x1F instead ('Terminal' appears to be special, returning 0xFFFF). 78433346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com * Type1 PFM/PFB, TT, OT TT, OT CFF all appear to use 0xFFFF, even on XP. 78533346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com */ 78633346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com DWORD result = GetGlyphIndicesW(fDDC, utf16, 1, &index, GGI_MARK_NONEXISTING_GLYPHS); 78733346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com if (result == GDI_ERROR 78833346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com || 0xFFFF == index 7894732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com || (0x1F == index && 7904732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com (fType == SkScalerContext_GDI::kBitmap_Type || 7914732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com fType == SkScalerContext_GDI::kLine_Type) 7924732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com /*&& winVer < Vista */) 7934732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com ) 79433346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com { 79533346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com index = 0; 79633346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com } 797ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 798ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Use uniscribe to detemine glyph index for non-BMP characters. 79927f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com static const int numWCHAR = 2; 80027f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com static const int maxItems = 2; 80127f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com // MSDN states that this can be NULL, but some things don't work then. 80227f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com SCRIPT_CONTROL sc = { 0 }; 80327f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com // Add extra item to SCRIPT_ITEM to work around a bug (now documented). 80427f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com // https://bugzilla.mozilla.org/show_bug.cgi?id=366643 80527f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com SCRIPT_ITEM si[maxItems + 1]; 80627f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com int numItems; 80727f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com HRZM(ScriptItemize(utf16, numWCHAR, maxItems, &sc, NULL, si, &numItems), 80827f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com "Could not itemize character."); 80927f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com 81027f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com // Sometimes ScriptShape cannot find a glyph for a non-BMP and returns 2 space glyphs. 81127f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com static const int maxGlyphs = 2; 81227f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com SCRIPT_VISATTR vsa[maxGlyphs]; 81327f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com WORD outGlyphs[maxGlyphs]; 81427f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com WORD logClust[numWCHAR]; 81527f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com int numGlyphs; 81627f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com HRZM(ScriptShape(fDDC, &fSC, utf16, numWCHAR, maxGlyphs, &si[0].a, 81727f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com outGlyphs, logClust, vsa, &numGlyphs), 81827f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com "Could not shape character."); 81927f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com if (1 == numGlyphs) { 82027f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com index = outGlyphs[0]; 82127f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com } 822ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 823ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return index; 824ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 825ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 82630ddd615c447fed73286151b463af20d309c85f1reed@google.comvoid SkScalerContext_GDI::generateAdvance(SkGlyph* glyph) { 827ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com this->generateMetrics(glyph); 828ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 829ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 83030ddd615c447fed73286151b463af20d309c85f1reed@google.comvoid SkScalerContext_GDI::generateMetrics(SkGlyph* glyph) { 831ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(fDDC); 832ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 8334732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com if (fType == SkScalerContext_GDI::kBitmap_Type || fType == SkScalerContext_GDI::kLine_Type) { 834a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com SIZE size; 8351b27704eba15be4e9d1997faac42038493a30be5djsollen WORD glyphs = glyph->getGlyphID(); 836a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (0 == GetTextExtentPointI(fDDC, &glyphs, 1, &size)) { 837a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fWidth = SkToS16(fTM.tmMaxCharWidth); 838a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } else { 839a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fWidth = SkToS16(size.cx); 840a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 841a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fHeight = SkToS16(size.cy); 842a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 843a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fTop = SkToS16(-fTM.tmAscent); 8444732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com // Bitmap FON cannot underhang, but vector FON may. 8454732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com // There appears no means of determining underhang of vector FON. 846a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fLeft = SkToS16(0); 847a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fAdvanceX = SkIntToFixed(glyph->fWidth); 848a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fAdvanceY = 0; 849a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 8504732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com // Vector FON will transform nicely, but bitmap FON do not. 8514732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com if (fType == SkScalerContext_GDI::kLine_Type) { 8524732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com SkRect bounds = SkRect::MakeXYWH(glyph->fLeft, glyph->fTop, 8534732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com glyph->fWidth, glyph->fHeight); 8544732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com SkMatrix m; 8554732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com m.setAll(SkFIXEDToScalar(fMat22.eM11), -SkFIXEDToScalar(fMat22.eM21), 0, 8564732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com -SkFIXEDToScalar(fMat22.eM12), SkFIXEDToScalar(fMat22.eM22), 0, 8573f43f8ab9cd3ba0ea83f5ae0659c21f101dfca7areed 0, 0, 1); 8584732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com m.mapRect(&bounds); 859d02cf2664d0e453a6ec57cddc7f09bfc07fd91dbreed bounds.roundOut(&bounds); 8604732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com glyph->fLeft = SkScalarTruncToInt(bounds.fLeft); 8614732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com glyph->fTop = SkScalarTruncToInt(bounds.fTop); 8624732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com glyph->fWidth = SkScalarTruncToInt(bounds.width()); 8634732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com glyph->fHeight = SkScalarTruncToInt(bounds.height()); 8644732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com } 8654732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com 866d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // Apply matrix to advance. 8674732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com glyph->fAdvanceY = SkFixedMul(-SkFIXEDToFixed(fMat22.eM12), glyph->fAdvanceX); 868a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fAdvanceX = SkFixedMul(SkFIXEDToFixed(fMat22.eM11), glyph->fAdvanceX); 869a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 870a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com return; 871a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 872a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 8731b27704eba15be4e9d1997faac42038493a30be5djsollen UINT glyphId = glyph->getGlyphID(); 874d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com 875ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com GLYPHMETRICS gm; 8761dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com sk_bzero(&gm, sizeof(gm)); 877ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 878d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com DWORD status = GetGlyphOutlineW(fDDC, glyphId, GGO_METRICS | GGO_GLYPH_INDEX, &gm, 0, NULL, &fMat22); 879d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (GDI_ERROR == status) { 880055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com LogFontTypeface::EnsureAccessible(this->getTypeface()); 881d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com status = GetGlyphOutlineW(fDDC, glyphId, GGO_METRICS | GGO_GLYPH_INDEX, &gm, 0, NULL, &fMat22); 882d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (GDI_ERROR == status) { 883d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->zeroMetrics(); 884d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com return; 885d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 88639698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 887ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 888d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com bool empty = false; 889d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // The black box is either the embedded bitmap size or the outline extent. 890d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // It is 1x1 if nothing is to be drawn, but will also be 1x1 if something very small 891d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // is to be drawn, like a '.'. We need to outset '.' but do not wish to outset ' '. 892d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (1 == gm.gmBlackBoxX && 1 == gm.gmBlackBoxY) { 893d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // If GetGlyphOutline with GGO_NATIVE returns 0, we know there was no outline. 894d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com DWORD bufferSize = GetGlyphOutlineW(fDDC, glyphId, GGO_NATIVE | GGO_GLYPH_INDEX, &gm, 0, NULL, &fMat22); 895d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com empty = (0 == bufferSize); 896d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 8971dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 898d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fTop = SkToS16(-gm.gmptGlyphOrigin.y); 899d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fLeft = SkToS16(gm.gmptGlyphOrigin.x); 900d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (empty) { 901d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fWidth = 0; 902d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fHeight = 0; 903ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 904d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // Outset, since the image may bleed out of the black box. 905d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // For embedded bitmaps the black box should be exact. 906d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // For outlines we need to outset by 1 in all directions for bleed. 907d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // For ClearType we need to outset by 2 for bleed. 908d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fWidth = gm.gmBlackBoxX + 4; 909d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fHeight = gm.gmBlackBoxY + 4; 910d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fTop -= 2; 911d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fLeft -= 2; 912d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 913d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fAdvanceX = SkIntToFixed(gm.gmCellIncX); 914d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fAdvanceY = SkIntToFixed(gm.gmCellIncY); 915d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fRsbDelta = 0; 916d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fLsbDelta = 0; 917d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com 9186a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com if (this->isSubpixel()) { 919d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com sk_bzero(&gm, sizeof(gm)); 9206a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com status = GetGlyphOutlineW(fDDC, glyphId, GGO_METRICS | GGO_GLYPH_INDEX, &gm, 0, NULL, &fHighResMat22); 921d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (GDI_ERROR != status) { 922d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkPoint advance; 923d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fHiResMatrix.mapXY(SkIntToScalar(gm.gmCellIncX), SkIntToScalar(gm.gmCellIncY), &advance); 924d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fAdvanceX = SkScalarToFixed(advance.fX); 925d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fAdvanceY = SkScalarToFixed(advance.fY); 926d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 9270abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } else if (!isAxisAligned(this->fRec)) { 9280abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com status = GetGlyphOutlineW(fDDC, glyphId, GGO_METRICS | GGO_GLYPH_INDEX, &gm, 0, NULL, &fGsA); 9290abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (GDI_ERROR != status) { 9300abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkPoint advance; 9310abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fG_inv.mapXY(SkIntToScalar(gm.gmCellIncX), SkIntToScalar(gm.gmCellIncY), &advance); 9320abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com glyph->fAdvanceX = SkScalarToFixed(advance.fX); 9330abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com glyph->fAdvanceY = SkScalarToFixed(advance.fY); 9340abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 935ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 936ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 937ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 9386a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.comstatic const MAT2 gMat2Identity = {{0, 1}, {0, 0}, {0, 0}, {0, 1}}; 939410780677af260e32948b02c0725ef6ad761260cbungemanvoid SkScalerContext_GDI::generateFontMetrics(SkPaint::FontMetrics* metrics) { 940410780677af260e32948b02c0725ef6ad761260cbungeman if (NULL == metrics) { 941410780677af260e32948b02c0725ef6ad761260cbungeman return; 94260af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com } 943410780677af260e32948b02c0725ef6ad761260cbungeman sk_bzero(metrics, sizeof(*metrics)); 944ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 945ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(fDDC); 946ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 947e9d831957602e3fa46fc4b609ae6d2da46654915bungeman@google.com#ifndef SK_GDI_ALWAYS_USE_TEXTMETRICS_FOR_FONT_METRICS 9484732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com if (fType == SkScalerContext_GDI::kBitmap_Type || fType == SkScalerContext_GDI::kLine_Type) { 949e9d831957602e3fa46fc4b609ae6d2da46654915bungeman@google.com#endif 950410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fTop = SkIntToScalar(-fTM.tmAscent); 951410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fAscent = SkIntToScalar(-fTM.tmAscent); 952410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fDescent = SkIntToScalar(fTM.tmDescent); 953410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fBottom = SkIntToScalar(fTM.tmDescent); 954410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fLeading = SkIntToScalar(fTM.tmExternalLeading); 955410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fAvgCharWidth = SkIntToScalar(fTM.tmAveCharWidth); 956410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fMaxCharWidth = SkIntToScalar(fTM.tmMaxCharWidth); 957410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fXMin = 0; 958410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fXMax = metrics->fMaxCharWidth; 959410780677af260e32948b02c0725ef6ad761260cbungeman //metrics->fXHeight = 0; 960e9d831957602e3fa46fc4b609ae6d2da46654915bungeman@google.com#ifndef SK_GDI_ALWAYS_USE_TEXTMETRICS_FOR_FONT_METRICS 961a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com return; 962a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 963e9d831957602e3fa46fc4b609ae6d2da46654915bungeman@google.com#endif 964a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 965ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com OUTLINETEXTMETRIC otm; 966ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 967ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com uint32_t ret = GetOutlineTextMetrics(fDDC, sizeof(otm), &otm); 9680abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (0 == ret) { 969055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com LogFontTypeface::EnsureAccessible(this->getTypeface()); 97039698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com ret = GetOutlineTextMetrics(fDDC, sizeof(otm), &otm); 97139698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 9720abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (0 == ret) { 973a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com return; 974ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 975ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 976e9d831957602e3fa46fc4b609ae6d2da46654915bungeman@google.com#ifndef SK_GDI_ALWAYS_USE_TEXTMETRICS_FOR_FONT_METRICS 977410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fTop = SkIntToScalar(-otm.otmrcFontBox.top); 978410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fAscent = SkIntToScalar(-otm.otmAscent); 979410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fDescent = SkIntToScalar(-otm.otmDescent); 980410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fBottom = SkIntToScalar(-otm.otmrcFontBox.bottom); 981410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fLeading = SkIntToScalar(otm.otmLineGap); 982410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fAvgCharWidth = SkIntToScalar(otm.otmTextMetrics.tmAveCharWidth); 983410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fMaxCharWidth = SkIntToScalar(otm.otmTextMetrics.tmMaxCharWidth); 984410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fXMin = SkIntToScalar(otm.otmrcFontBox.left); 985410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fXMax = SkIntToScalar(otm.otmrcFontBox.right); 986d3031aa5ae90b796593a04c0da062024198e4769commit-bot@chromium.org#endif 987410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fUnderlineThickness = SkIntToScalar(otm.otmsUnderscoreSize); 988410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fUnderlinePosition = -SkIntToScalar(otm.otmsUnderscorePosition); 9894a867a6356e05a09186a16c1c8ffc3f2cafbbe59bungeman@google.com 990410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fFlags |= SkPaint::FontMetrics::kUnderlineThinknessIsValid_Flag; 991410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fFlags |= SkPaint::FontMetrics::kUnderlinePositionIsValid_Flag; 9920abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 993410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fXHeight = SkIntToScalar(otm.otmsXHeight); 994410780677af260e32948b02c0725ef6ad761260cbungeman GLYPHMETRICS gm; 995410780677af260e32948b02c0725ef6ad761260cbungeman sk_bzero(&gm, sizeof(gm)); 996410780677af260e32948b02c0725ef6ad761260cbungeman DWORD len = GetGlyphOutlineW(fDDC, 'x', GGO_METRICS, &gm, 0, 0, &gMat2Identity); 997410780677af260e32948b02c0725ef6ad761260cbungeman if (len != GDI_ERROR && gm.gmBlackBoxY > 0) { 998410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fXHeight = SkIntToScalar(gm.gmBlackBoxY); 999ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1000ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1001ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 10027430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com//////////////////////////////////////////////////////////////////////////////////////// 10037430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com 10040abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#define SK_SHOW_TEXT_BLIT_COVERAGE 0 10050abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 10067430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.comstatic void build_power_table(uint8_t table[], float ee) { 10077430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com for (int i = 0; i < 256; i++) { 10087430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com float x = i / 255.f; 100997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com x = sk_float_pow(x, ee); 1010e1ca705cac4b946993f6cbf798e2a0ba27e739f3reed@google.com int xx = SkScalarRoundToInt(x * 255); 10117430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com table[i] = SkToU8(xx); 10127430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com } 10137430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com} 10147430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com 101597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com/** 101697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * This will invert the gamma applied by GDI (gray-scale antialiased), so we 101797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * can get linear values. 101897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * 101997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * GDI grayscale appears to use a hard-coded gamma of 2.3. 102097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * 102197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * GDI grayscale appears to draw using the black and white rasterizer at four 102297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * times the size and then downsamples to compute the coverage mask. As a 102397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * result there are only seventeen total grays. This lack of fidelity means 102497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * that shifting into other color spaces is imprecise. 102597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com */ 102697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic const uint8_t* getInverseGammaTableGDI() { 102705a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Since build_power_table is idempotent, many threads can build gTableGdi 102805a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // simultaneously. 102905a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com 103005a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Microsoft Specific: 103105a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Making gInited volatile provides read-aquire and write-release in vc++. 103205a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // In VS2012, see compiler option /volatile:(ms|iso). 103305a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Replace with C++11 atomics when possible. 103405a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com static volatile bool gInited; 103597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com static uint8_t gTableGdi[256]; 103605a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com if (gInited) { 103705a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Need a L/L (read) barrier (full acquire not needed). If gInited is observed 103805a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // true then gTableGdi is observable, but it must be requested. 103905a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com } else { 104097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com build_power_table(gTableGdi, 2.3f); 104105a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Need a S/S (write) barrier (full release not needed) here so that this 104205a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // write to gInited becomes observable after gTableGdi. 104397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com gInited = true; 104497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } 104597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com return gTableGdi; 104697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com} 104797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com 104897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com/** 104997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * This will invert the gamma applied by GDI ClearType, so we can get linear 105097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * values. 105197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * 105297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * GDI ClearType uses SPI_GETFONTSMOOTHINGCONTRAST / 1000 as the gamma value. 105397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * If this value is not specified, the default is a gamma of 1.4. 105497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com */ 105597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic const uint8_t* getInverseGammaTableClearType() { 105605a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // We don't expect SPI_GETFONTSMOOTHINGCONTRAST to ever change, so building 105705a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // gTableClearType with build_power_table is effectively idempotent. 105805a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com 105905a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Microsoft Specific: 106005a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Making gInited volatile provides read-aquire and write-release in vc++. 106105a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // In VS2012, see compiler option /volatile:(ms|iso). 106205a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Replace with C++11 atomics when possible. 106305a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com static volatile bool gInited; 106497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com static uint8_t gTableClearType[256]; 106505a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com if (gInited) { 106605a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Need a L/L (read) barrier (acquire not needed). If gInited is observed 106705a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // true then gTableClearType is observable, but it must be requested. 106805a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com } else { 10697430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com UINT level = 0; 10707430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com if (!SystemParametersInfo(SPI_GETFONTSMOOTHINGCONTRAST, 0, &level, 0) || !level) { 10717430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com // can't get the data, so use a default 10727430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com level = 1400; 10737430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com } 107497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com build_power_table(gTableClearType, level / 1000.0f); 107505a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Need a S/S (write) barrier (release not needed) here so that this 107605a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // write to gInited becomes observable after gTableClearType. 10777430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com gInited = true; 10787430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com } 107997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com return gTableClearType; 10807430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com} 10817430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com 1082ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkColorPriv.h" 1083ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 10846385314686875ecb484d95b33fcbf08890b5144dbungeman@google.com//Cannot assume that the input rgb is gray due to possible setting of kGenA8FromLCD_Flag. 108597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 108697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic inline uint8_t rgb_to_a8(SkGdiRGB rgb, const uint8_t* table8) { 10876385314686875ecb484d95b33fcbf08890b5144dbungeman@google.com U8CPU r = (rgb >> 16) & 0xFF; 10886385314686875ecb484d95b33fcbf08890b5144dbungeman@google.com U8CPU g = (rgb >> 8) & 0xFF; 10896385314686875ecb484d95b33fcbf08890b5144dbungeman@google.com U8CPU b = (rgb >> 0) & 0xFF; 10901bfe01d06b896eca94c80d9af9a6bb30216b5e42bungeman@google.com return sk_apply_lut_if<APPLY_PREBLEND>(SkComputeLuminance(r, g, b), table8); 109182a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com} 109282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 109397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 109497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic inline uint16_t rgb_to_lcd16(SkGdiRGB rgb, const uint8_t* tableR, 109597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableG, 109697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableB) { 109797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU r = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 16) & 0xFF, tableR); 109897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU g = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 8) & 0xFF, tableG); 109997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU b = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 0) & 0xFF, tableB); 11000abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#if SK_SHOW_TEXT_BLIT_COVERAGE 11010abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com r = SkMax32(r, 10); g = SkMax32(g, 10); b = SkMax32(b, 10); 11020abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#endif 110397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com return SkPack888ToRGB16(r, g, b); 1104ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1105ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 110682cff020b7e055f2d01686f060a884df842306edreed@google.com// Is this GDI color neither black nor white? If so, we have to keep this 110782cff020b7e055f2d01686f060a884df842306edreed@google.com// image as is, rather than smashing it down to a BW mask. 110882cff020b7e055f2d01686f060a884df842306edreed@google.com// 110982cff020b7e055f2d01686f060a884df842306edreed@google.com// returns int instead of bool, since we don't want/have to pay to convert 111082cff020b7e055f2d01686f060a884df842306edreed@google.com// the zero/non-zero value into a bool 111182cff020b7e055f2d01686f060a884df842306edreed@google.comstatic int is_not_black_or_white(SkGdiRGB c) { 111282cff020b7e055f2d01686f060a884df842306edreed@google.com // same as (but faster than) 111382cff020b7e055f2d01686f060a884df842306edreed@google.com // c &= 0x00FFFFFF; 111482cff020b7e055f2d01686f060a884df842306edreed@google.com // return 0 == c || 0x00FFFFFF == c; 111582cff020b7e055f2d01686f060a884df842306edreed@google.com return (c + (c & 1)) & 0x00FFFFFF; 11165e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 11175e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 11184b18f5767ab1df7fedf0ff2e3a9eac7f7c500c36bungeman@google.comstatic bool is_rgb_really_bw(const SkGdiRGB* src, int width, int height, size_t srcRB) { 11195e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int y = 0; y < height; ++y) { 11205e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int x = 0; x < width; ++x) { 112182cff020b7e055f2d01686f060a884df842306edreed@google.com if (is_not_black_or_white(src[x])) { 11225e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com return false; 11235e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 11245e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 112505a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com src = SkTAddOffset<const SkGdiRGB>(src, srcRB); 11265e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 11275e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com return true; 11285e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 11295e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 113097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com// gdi's bitmap is upside-down, so we reverse dst walking in Y 113197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com// whenever we copy it into skia's buffer 11325e2df64215f12660ab26b96816f40ad8e32bf16freed@google.comstatic void rgb_to_bw(const SkGdiRGB* SK_RESTRICT src, size_t srcRB, 113397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const SkGlyph& glyph) { 11345e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const int width = glyph.fWidth; 11355e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const size_t dstRB = (width + 7) >> 3; 11365e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com uint8_t* SK_RESTRICT dst = (uint8_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 11375e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 11385e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com int byteCount = width >> 3; 11395e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com int bitCount = width & 7; 11405e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 11415e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com // adjust srcRB to skip the values in our byteCount loop, 11425e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com // since we increment src locally there 11435e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com srcRB -= byteCount * 8 * sizeof(SkGdiRGB); 11445e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 11455e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int y = 0; y < glyph.fHeight; ++y) { 11465e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com if (byteCount > 0) { 11475e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int i = 0; i < byteCount; ++i) { 11487a230142e01c5a8cf955be12a5f287589b551634reed@google.com unsigned byte = 0; 114997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[0] & (1 << 7); 115097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[1] & (1 << 6); 115197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[2] & (1 << 5); 115297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[3] & (1 << 4); 115397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[4] & (1 << 3); 115497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[5] & (1 << 2); 115597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[6] & (1 << 1); 115697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[7] & (1 << 0); 11576a8f14d9633b330fb8051581828a0aaf4403d1a9reed@google.com dst[i] = byte; 11585e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com src += 8; 11595e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 11605e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 11615e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com if (bitCount > 0) { 11625e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com unsigned byte = 0; 11635e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com unsigned mask = 0x80; 11645e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int i = 0; i < bitCount; i++) { 116597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[i] & mask; 11665e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com mask >>= 1; 11675e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 11685e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com dst[byteCount] = byte; 11695e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 117005a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com src = SkTAddOffset<const SkGdiRGB>(src, srcRB); 11715e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com dst -= dstRB; 11725e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 11730abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#if SK_SHOW_TEXT_BLIT_COVERAGE 11740abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (glyph.fWidth > 0 && glyph.fHeight > 0) { 11750abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com uint8_t* first = (uint8_t*)glyph.fImage; 11760abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com uint8_t* last = (uint8_t*)((char*)glyph.fImage + glyph.fHeight * dstRB - 1); 11770abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com *first |= 1 << 7; 11780abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com *last |= bitCount == 0 ? 1 : 1 << (8 - bitCount); 11790abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 11800abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#endif 11815e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 11825e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 118397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 11845e2df64215f12660ab26b96816f40ad8e32bf16freed@google.comstatic void rgb_to_a8(const SkGdiRGB* SK_RESTRICT src, size_t srcRB, 118597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const SkGlyph& glyph, const uint8_t* table8) { 11865e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const size_t dstRB = glyph.rowBytes(); 11875e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const int width = glyph.fWidth; 11885e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com uint8_t* SK_RESTRICT dst = (uint8_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 11895e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 11905e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int y = 0; y < glyph.fHeight; y++) { 11915e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int i = 0; i < width; i++) { 119297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com dst[i] = rgb_to_a8<APPLY_PREBLEND>(src[i], table8); 11930abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#if SK_SHOW_TEXT_BLIT_COVERAGE 11940abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com dst[i] = SkMax32(dst[i], 10); 11950abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#endif 11965e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 119705a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com src = SkTAddOffset<const SkGdiRGB>(src, srcRB); 11985e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com dst -= dstRB; 11995e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 12005e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 12015e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 120297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 120397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic void rgb_to_lcd16(const SkGdiRGB* SK_RESTRICT src, size_t srcRB, const SkGlyph& glyph, 120497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableR, const uint8_t* tableG, const uint8_t* tableB) { 12055e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const size_t dstRB = glyph.rowBytes(); 12065e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const int width = glyph.fWidth; 12075e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com uint16_t* SK_RESTRICT dst = (uint16_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 12085e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 12095e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int y = 0; y < glyph.fHeight; y++) { 12105e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int i = 0; i < width; i++) { 121197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com dst[i] = rgb_to_lcd16<APPLY_PREBLEND>(src[i], tableR, tableG, tableB); 12125e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 121305a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com src = SkTAddOffset<const SkGdiRGB>(src, srcRB); 12145e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com dst = (uint16_t*)((char*)dst - dstRB); 12155e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 12165e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 12175e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 12186f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.comstatic inline unsigned clamp255(unsigned x) { 12196f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com SkASSERT(x <= 256); 12206f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com return x - (x >> 8); 12216f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com} 12226f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com 122330ddd615c447fed73286151b463af20d309c85f1reed@google.comvoid SkScalerContext_GDI::generateImage(const SkGlyph& glyph) { 1224ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(fDDC); 1225ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 12266271117d826098c1399cf7442f8eea2d665cb78areed@google.com const bool isBW = SkMask::kBW_Format == fRec.fMaskFormat; 122782a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com const bool isAA = !isLCD(fRec); 122882a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 122999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com size_t srcRB; 123097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const void* bits = fOffscreen.draw(glyph, isBW, &srcRB); 123139698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (NULL == bits) { 1232055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com LogFontTypeface::EnsureAccessible(this->getTypeface()); 123397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com bits = fOffscreen.draw(glyph, isBW, &srcRB); 123439698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (NULL == bits) { 123539698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com sk_bzero(glyph.fImage, glyph.computeImageSize()); 123639698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com return; 123739698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 123882a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com } 123982a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 124097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com if (!isBW) { 12411bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com const uint8_t* table; 12421bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com //The offscreen contains a GDI blit if isAA and kGenA8FromLCD_Flag is not set. 12431bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com //Otherwise the offscreen contains a ClearType blit. 12441bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com if (isAA && !(fRec.fFlags & SkScalerContext::kGenA8FromLCD_Flag)) { 12451bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com table = getInverseGammaTableGDI(); 12461bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com } else { 12471bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com table = getInverseGammaTableClearType(); 124897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } 124997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //Note that the following cannot really be integrated into the 125097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //pre-blend, since we may not be applying the pre-blend; when we aren't 125197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //applying the pre-blend it means that a filter wants linear anyway. 125297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //Other code may also be applying the pre-blend, so we'd need another 125397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //one with this and one without. 12546f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com SkGdiRGB* addr = (SkGdiRGB*)bits; 12556f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com for (int y = 0; y < glyph.fHeight; ++y) { 12566f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com for (int x = 0; x < glyph.fWidth; ++x) { 12576f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com int r = (addr[x] >> 16) & 0xFF; 12586f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com int g = (addr[x] >> 8) & 0xFF; 12596f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com int b = (addr[x] >> 0) & 0xFF; 12607430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com addr[x] = (table[r] << 16) | (table[g] << 8) | table[b]; 12616f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com } 126205a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com addr = SkTAddOffset<SkGdiRGB>(addr, srcRB); 12636f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com } 12646f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com } 12656f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com 126682a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com int width = glyph.fWidth; 126782a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com size_t dstRB = glyph.rowBytes(); 126882a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com if (isBW) { 126982a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com const uint8_t* src = (const uint8_t*)bits; 127082a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com uint8_t* dst = (uint8_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 127182a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com for (int y = 0; y < glyph.fHeight; y++) { 127282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com memcpy(dst, src, dstRB); 127382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com src += srcRB; 127482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com dst -= dstRB; 1275ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 12760abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#if SK_SHOW_TEXT_BLIT_COVERAGE 12770abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (glyph.fWidth > 0 && glyph.fHeight > 0) { 12780abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com int bitCount = width & 7; 12790abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com uint8_t* first = (uint8_t*)glyph.fImage; 12800abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com uint8_t* last = (uint8_t*)((char*)glyph.fImage + glyph.fHeight * dstRB - 1); 12810abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com *first |= 1 << 7; 12820abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com *last |= bitCount == 0 ? 1 : 1 << (8 - bitCount); 12830abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 12840abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#endif 128582a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com } else if (isAA) { 12866f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com // since the caller may require A8 for maskfilters, we can't check for BW 12876f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com // ... until we have the caller tell us that explicitly 12885e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const SkGdiRGB* src = (const SkGdiRGB*)bits; 1289a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com if (fPreBlend.isApplicable()) { 1290a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com rgb_to_a8<true>(src, srcRB, glyph, fPreBlend.fG); 129197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } else { 1292a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com rgb_to_a8<false>(src, srcRB, glyph, fPreBlend.fG); 129397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } 129482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com } else { // LCD16 12955e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const SkGdiRGB* src = (const SkGdiRGB*)bits; 12965e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com if (is_rgb_really_bw(src, width, glyph.fHeight, srcRB)) { 129797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com rgb_to_bw(src, srcRB, glyph); 12985e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com ((SkGlyph*)&glyph)->fMaskFormat = SkMask::kBW_Format; 12995e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } else { 1300d54d3fc82456f8789b3e4dff40faeb7b670bcf4breed SkASSERT(SkMask::kLCD16_Format == glyph.fMaskFormat); 1301d54d3fc82456f8789b3e4dff40faeb7b670bcf4breed if (fPreBlend.isApplicable()) { 1302d54d3fc82456f8789b3e4dff40faeb7b670bcf4breed rgb_to_lcd16<true>(src, srcRB, glyph, 1303d54d3fc82456f8789b3e4dff40faeb7b670bcf4breed fPreBlend.fR, fPreBlend.fG, fPreBlend.fB); 1304754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } else { 1305d54d3fc82456f8789b3e4dff40faeb7b670bcf4breed rgb_to_lcd16<false>(src, srcRB, glyph, 1306d54d3fc82456f8789b3e4dff40faeb7b670bcf4breed fPreBlend.fR, fPreBlend.fG, fPreBlend.fB); 1307754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } 1308ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1309ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1310ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1311ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 13120abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.comclass GDIGlyphbufferPointIter { 13130abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.compublic: 131427e21fe577211c1c40cbf40d0385b02c69d04522skia.committer@gmail.com GDIGlyphbufferPointIter(const uint8_t* glyphbuf, DWORD total_size) 13150abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com : fHeaderIter(glyphbuf, total_size), fCurveIter(), fPointIter() 13160abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com { } 13170abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 1318dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com POINTFX const * next() { 13190abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.comnextHeader: 13200abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (!fCurveIter.isSet()) { 13210abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYGONHEADER* header = fHeaderIter.next(); 1322dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com if (NULL == header) { 1323dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com return NULL; 1324dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com } 13250abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fCurveIter.set(header); 13260abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYCURVE* curve = fCurveIter.next(); 1327dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com if (NULL == curve) { 1328dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com return NULL; 1329dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com } 13300abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fPointIter.set(curve); 1331dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com return &header->pfxStart; 13320abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 1333ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 13340abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const POINTFX* nextPoint = fPointIter.next(); 13350abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (NULL == nextPoint) { 13360abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYCURVE* curve = fCurveIter.next(); 13370abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (NULL == curve) { 13380abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fCurveIter.set(); 13390abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com goto nextHeader; 13400abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } else { 13410abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fPointIter.set(curve); 13420abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 13430abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com nextPoint = fPointIter.next(); 13440abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 1345dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com return nextPoint; 13460abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 1347ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 13480abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com WORD currentCurveType() { 13490abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return fPointIter.fCurveType; 13500abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 135105a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com 13520abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.comprivate: 13530abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com /** Iterates over all of the polygon headers in a glyphbuf. */ 13540abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com class GDIPolygonHeaderIter { 13550abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com public: 135627e21fe577211c1c40cbf40d0385b02c69d04522skia.committer@gmail.com GDIPolygonHeaderIter(const uint8_t* glyphbuf, DWORD total_size) 13570abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com : fCurPolygon(reinterpret_cast<const TTPOLYGONHEADER*>(glyphbuf)) 13580abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com , fEndPolygon(SkTAddOffset<const TTPOLYGONHEADER>(glyphbuf, total_size)) 13590abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com { } 13600abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 13610abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYGONHEADER* next() { 13620abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (fCurPolygon >= fEndPolygon) { 13630abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return NULL; 13640abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 13650abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYGONHEADER* thisPolygon = fCurPolygon; 13660abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fCurPolygon = SkTAddOffset<const TTPOLYGONHEADER>(fCurPolygon, fCurPolygon->cb); 13670abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return thisPolygon; 13680abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 13690abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com private: 13700abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYGONHEADER* fCurPolygon; 13710abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYGONHEADER* fEndPolygon; 13720abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com }; 137305a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com 13740abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com /** Iterates over all of the polygon curves in a polygon header. */ 13750abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com class GDIPolygonCurveIter { 13760abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com public: 13770abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GDIPolygonCurveIter() : fCurCurve(NULL), fEndCurve(NULL) { } 13780abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 13790abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GDIPolygonCurveIter(const TTPOLYGONHEADER* curPolygon) 13800abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com : fCurCurve(SkTAddOffset<const TTPOLYCURVE>(curPolygon, sizeof(TTPOLYGONHEADER))) 13810abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com , fEndCurve(SkTAddOffset<const TTPOLYCURVE>(curPolygon, curPolygon->cb)) 13820abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com { } 13830abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 13840abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com bool isSet() { return fCurCurve != NULL; } 13850abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 13860abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com void set(const TTPOLYGONHEADER* curPolygon) { 13870abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fCurCurve = SkTAddOffset<const TTPOLYCURVE>(curPolygon, sizeof(TTPOLYGONHEADER)); 13880abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fEndCurve = SkTAddOffset<const TTPOLYCURVE>(curPolygon, curPolygon->cb); 13890abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 13900abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com void set() { 13910abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fCurCurve = NULL; 13920abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fEndCurve = NULL; 13930abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 13940abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 13950abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYCURVE* next() { 13960abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (fCurCurve >= fEndCurve) { 13970abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return NULL; 139805a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com } 13990abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYCURVE* thisCurve = fCurCurve; 14000abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fCurCurve = SkTAddOffset<const TTPOLYCURVE>(fCurCurve, size_of_TTPOLYCURVE(*fCurCurve)); 14010abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return thisCurve; 14020abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 14030abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com private: 14040abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com size_t size_of_TTPOLYCURVE(const TTPOLYCURVE& curve) { 14050abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return 2*sizeof(WORD) + curve.cpfx*sizeof(POINTFX); 140605a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com } 14070abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYCURVE* fCurCurve; 14080abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYCURVE* fEndCurve; 14090abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com }; 141005a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com 14110abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com /** Iterates over all of the polygon points in a polygon curve. */ 14120abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com class GDIPolygonCurvePointIter { 14130abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com public: 14140abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GDIPolygonCurvePointIter() : fCurveType(0), fCurPoint(NULL), fEndPoint(NULL) { } 141505a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com 14160abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GDIPolygonCurvePointIter(const TTPOLYCURVE* curPolygon) 14170abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com : fCurveType(curPolygon->wType) 14180abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com , fCurPoint(&curPolygon->apfx[0]) 14190abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com , fEndPoint(&curPolygon->apfx[curPolygon->cpfx]) 14200abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com { } 14210abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 14220abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com bool isSet() { return fCurPoint != NULL; } 14230abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 14240abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com void set(const TTPOLYCURVE* curPolygon) { 14250abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fCurveType = curPolygon->wType; 14260abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fCurPoint = &curPolygon->apfx[0]; 14270abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fEndPoint = &curPolygon->apfx[curPolygon->cpfx]; 14280abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 14290abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com void set() { 14300abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fCurPoint = NULL; 14310abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fEndPoint = NULL; 14320abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 14330abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 14340abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const POINTFX* next() { 14350abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (fCurPoint >= fEndPoint) { 14360abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return NULL; 143705a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com } 14380abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const POINTFX* thisPoint = fCurPoint; 14390abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com ++fCurPoint; 14400abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return thisPoint; 1441d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 1442ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 14430abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com WORD fCurveType; 14440abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com private: 14450abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const POINTFX* fCurPoint; 14460abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const POINTFX* fEndPoint; 14470abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com }; 14480abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 14490abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GDIPolygonHeaderIter fHeaderIter; 14500abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GDIPolygonCurveIter fCurveIter; 14510abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GDIPolygonCurvePointIter fPointIter; 14520abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com}; 14530abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 14540abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.comstatic void sk_path_from_gdi_path(SkPath* path, const uint8_t* glyphbuf, DWORD total_size) { 1455d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const uint8_t* cur_glyph = glyphbuf; 1456d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const uint8_t* end_glyph = glyphbuf + total_size; 1457ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1458d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com while (cur_glyph < end_glyph) { 1459d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const TTPOLYGONHEADER* th = (TTPOLYGONHEADER*)cur_glyph; 1460ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1461d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const uint8_t* end_poly = cur_glyph + th->cb; 1462d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const uint8_t* cur_poly = cur_glyph + sizeof(TTPOLYGONHEADER); 1463ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1464d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com path->moveTo(SkFixedToScalar( SkFIXEDToFixed(th->pfxStart.x)), 1465d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(th->pfxStart.y))); 1466ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1467d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com while (cur_poly < end_poly) { 1468d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const TTPOLYCURVE* pc = (const TTPOLYCURVE*)cur_poly; 1469ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1470d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (pc->wType == TT_PRIM_LINE) { 1471d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com for (uint16_t i = 0; i < pc->cpfx; i++) { 1472d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com path->lineTo(SkFixedToScalar( SkFIXEDToFixed(pc->apfx[i].x)), 1473d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(pc->apfx[i].y))); 1474ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1475d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 1476ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1477d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (pc->wType == TT_PRIM_QSPLINE) { 1478d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com for (uint16_t u = 0; u < pc->cpfx - 1; u++) { // Walk through points in spline 1479d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com POINTFX pnt_b = pc->apfx[u]; // B is always the current point 1480d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com POINTFX pnt_c = pc->apfx[u+1]; 1481ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1482d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (u < pc->cpfx - 2) { // If not on last spline, compute C 1483d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com pnt_c.x = SkFixedToFIXED(SkFixedAve(SkFIXEDToFixed(pnt_b.x), 1484d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFIXEDToFixed(pnt_c.x))); 1485d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com pnt_c.y = SkFixedToFIXED(SkFixedAve(SkFIXEDToFixed(pnt_b.y), 1486d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFIXEDToFixed(pnt_c.y))); 1487ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1488d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com 1489d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com path->quadTo(SkFixedToScalar( SkFIXEDToFixed(pnt_b.x)), 1490d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(pnt_b.y)), 1491d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFixedToScalar( SkFIXEDToFixed(pnt_c.x)), 1492d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(pnt_c.y))); 1493ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1494ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1495d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // Advance past this TTPOLYCURVE. 1496d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com cur_poly += sizeof(WORD) * 2 + sizeof(POINTFX) * pc->cpfx; 1497ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1498d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com cur_glyph += th->cb; 1499d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com path->close(); 1500ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1501ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1502ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1503dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com#define move_next_expected_hinted_point(iter, pElem) do {\ 1504dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com pElem = iter.next(); \ 1505dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com if (NULL == pElem) return false; \ 1506dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com} while(0) 1507dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com 1508dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com// It is possible for the hinted and unhinted versions of the same path to have 1509dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com// a different number of points due to GDI's handling of flipped points. 1510dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com// If this is detected, this will return false. 1511dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.comstatic bool sk_path_from_gdi_paths(SkPath* path, const uint8_t* glyphbuf, DWORD total_size, 15120abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GDIGlyphbufferPointIter hintedYs) { 15130abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const uint8_t* cur_glyph = glyphbuf; 15140abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const uint8_t* end_glyph = glyphbuf + total_size; 15150abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 1516dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com POINTFX const * hintedPoint; 1517dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com 15180abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com while (cur_glyph < end_glyph) { 15190abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYGONHEADER* th = (TTPOLYGONHEADER*)cur_glyph; 15200abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 15210abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const uint8_t* end_poly = cur_glyph + th->cb; 15220abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const uint8_t* cur_poly = cur_glyph + sizeof(TTPOLYGONHEADER); 15230abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 1524dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com move_next_expected_hinted_point(hintedYs, hintedPoint); 15250abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com path->moveTo(SkFixedToScalar( SkFIXEDToFixed(th->pfxStart.x)), 1526dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(hintedPoint->y))); 15270abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 15280abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com while (cur_poly < end_poly) { 15290abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYCURVE* pc = (const TTPOLYCURVE*)cur_poly; 15300abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 15310abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (pc->wType == TT_PRIM_LINE) { 15320abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com for (uint16_t i = 0; i < pc->cpfx; i++) { 1533dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com move_next_expected_hinted_point(hintedYs, hintedPoint); 15340abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com path->lineTo(SkFixedToScalar( SkFIXEDToFixed(pc->apfx[i].x)), 1535dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(hintedPoint->y))); 15360abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 15370abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 15380abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 15390abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (pc->wType == TT_PRIM_QSPLINE) { 15400abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com POINTFX currentPoint = pc->apfx[0]; 1541dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com move_next_expected_hinted_point(hintedYs, hintedPoint); 15420abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // only take the hinted y if it wasn't flipped 15430abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (hintedYs.currentCurveType() == TT_PRIM_QSPLINE) { 1544dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com currentPoint.y = hintedPoint->y; 15450abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 15460abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com for (uint16_t u = 0; u < pc->cpfx - 1; u++) { // Walk through points in spline 15470abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com POINTFX pnt_b = currentPoint;//pc->apfx[u]; // B is always the current point 15480abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com POINTFX pnt_c = pc->apfx[u+1]; 1549dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com move_next_expected_hinted_point(hintedYs, hintedPoint); 15500abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // only take the hinted y if it wasn't flipped 15510abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (hintedYs.currentCurveType() == TT_PRIM_QSPLINE) { 1552dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com pnt_c.y = hintedPoint->y; 15530abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 15540abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com currentPoint.x = pnt_c.x; 15550abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com currentPoint.y = pnt_c.y; 15560abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 15570abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (u < pc->cpfx - 2) { // If not on last spline, compute C 15580abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com pnt_c.x = SkFixedToFIXED(SkFixedAve(SkFIXEDToFixed(pnt_b.x), 15590abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkFIXEDToFixed(pnt_c.x))); 15600abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com pnt_c.y = SkFixedToFIXED(SkFixedAve(SkFIXEDToFixed(pnt_b.y), 15610abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkFIXEDToFixed(pnt_c.y))); 15620abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 15630abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 15640abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com path->quadTo(SkFixedToScalar( SkFIXEDToFixed(pnt_b.x)), 15650abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(pnt_b.y)), 15660abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkFixedToScalar( SkFIXEDToFixed(pnt_c.x)), 15670abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(pnt_c.y))); 15680abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 15690abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 15700abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // Advance past this TTPOLYCURVE. 15710abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com cur_poly += sizeof(WORD) * 2 + sizeof(POINTFX) * pc->cpfx; 15720abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 15730abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com cur_glyph += th->cb; 15740abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com path->close(); 15750abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 1576dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com return true; 15770abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com} 15780abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 157930ddd615c447fed73286151b463af20d309c85f1reed@google.comDWORD SkScalerContext_GDI::getGDIGlyphPath(const SkGlyph& glyph, UINT flags, 15800abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkAutoSTMalloc<BUFFERSIZE, uint8_t>* glyphbuf) 15810abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com{ 15820abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GLYPHMETRICS gm; 15830abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 15840abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com DWORD total_size = GetGlyphOutlineW(fDDC, glyph.fID, flags, &gm, BUFFERSIZE, glyphbuf->get(), &fMat22); 15850abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // Sometimes GetGlyphOutlineW returns a number larger than BUFFERSIZE even if BUFFERSIZE > 0. 15860abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // It has been verified that this does not involve a buffer overrun. 15870abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (GDI_ERROR == total_size || total_size > BUFFERSIZE) { 15880abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // GDI_ERROR because the BUFFERSIZE was too small, or because the data was not accessible. 15890abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // When the data is not accessable GetGlyphOutlineW fails rather quickly, 15900abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // so just try to get the size. If that fails then ensure the data is accessible. 15910abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com total_size = GetGlyphOutlineW(fDDC, glyph.fID, flags, &gm, 0, NULL, &fMat22); 15920abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (GDI_ERROR == total_size) { 15930abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com LogFontTypeface::EnsureAccessible(this->getTypeface()); 15940abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com total_size = GetGlyphOutlineW(fDDC, glyph.fID, flags, &gm, 0, NULL, &fMat22); 15950abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (GDI_ERROR == total_size) { 1596c6cb56f36c4aad8ed45486a3bb4de614bb822f1bkkinnunen // GetGlyphOutlineW is known to fail for some characters, such as spaces. 1597c6cb56f36c4aad8ed45486a3bb4de614bb822f1bkkinnunen // In these cases, just return that the glyph does not have a shape. 15980abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return 0; 15990abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16000abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16010abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 16020abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com glyphbuf->reset(total_size); 16030abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 16040abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com DWORD ret = GetGlyphOutlineW(fDDC, glyph.fID, flags, &gm, total_size, glyphbuf->get(), &fMat22); 16050abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (GDI_ERROR == ret) { 16060abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com LogFontTypeface::EnsureAccessible(this->getTypeface()); 16070abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com ret = GetGlyphOutlineW(fDDC, glyph.fID, flags, &gm, total_size, glyphbuf->get(), &fMat22); 16080abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (GDI_ERROR == ret) { 16090abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkASSERT(false); 16100abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return 0; 16110abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16120abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16130abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16140abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return total_size; 16150abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com} 16160abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 161730ddd615c447fed73286151b463af20d309c85f1reed@google.comvoid SkScalerContext_GDI::generatePath(const SkGlyph& glyph, SkPath* path) { 16180abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkASSERT(&glyph && path); 16190abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkASSERT(fDDC); 16200abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 16210abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com path->reset(); 16220abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 16230abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // Out of all the fonts on a typical Windows box, 16240abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // 25% of glyphs require more than 2KB. 16250abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // 1% of glyphs require more than 4KB. 16260abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // 0.01% of glyphs require more than 8KB. 16270abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // 8KB is less than 1% of the normal 1MB stack on Windows. 16280abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // Note that some web fonts glyphs require more than 20KB. 16290abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com //static const DWORD BUFFERSIZE = (1 << 13); 16300abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 16310abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com //GDI only uses hinted outlines when axis aligned. 16320abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com UINT format = GGO_NATIVE | GGO_GLYPH_INDEX; 16330abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (fRec.getHinting() == SkPaint::kNo_Hinting || fRec.getHinting() == SkPaint::kSlight_Hinting){ 16340abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com format |= GGO_UNHINTED; 16350abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16360abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkAutoSTMalloc<BUFFERSIZE, uint8_t> glyphbuf(BUFFERSIZE); 16370abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com DWORD total_size = getGDIGlyphPath(glyph, format, &glyphbuf); 16380abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (0 == total_size) { 16390abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return; 16400abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16410abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 16420abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (fRec.getHinting() != SkPaint::kSlight_Hinting) { 16430abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com sk_path_from_gdi_path(path, glyphbuf, total_size); 16440abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } else { 16450abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com //GDI only uses hinted outlines when axis aligned. 16460abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com UINT format = GGO_NATIVE | GGO_GLYPH_INDEX; 16470abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 16480abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkAutoSTMalloc<BUFFERSIZE, uint8_t> hintedGlyphbuf(BUFFERSIZE); 16490abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com DWORD hinted_total_size = getGDIGlyphPath(glyph, format, &hintedGlyphbuf); 16500abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (0 == hinted_total_size) { 16510abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return; 16520abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16530abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 1654dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com if (!sk_path_from_gdi_paths(path, glyphbuf, total_size, 1655dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com GDIGlyphbufferPointIter(hintedGlyphbuf, hinted_total_size))) 1656dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com { 1657dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com path->reset(); 1658dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com sk_path_from_gdi_path(path, glyphbuf, total_size); 1659dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com } 16600abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16610abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com} 16620abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 1663484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comstatic void logfont_for_name(const char* familyName, LOGFONT* lf) { 1664484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com sk_bzero(lf, sizeof(LOGFONT)); 1665e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com#ifdef UNICODE 1666484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com // Get the buffer size needed first. 1667484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com size_t str_len = ::MultiByteToWideChar(CP_UTF8, 0, familyName, 1668484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com -1, NULL, 0); 1669484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com // Allocate a buffer (str_len already has terminating null 1670484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com // accounted for). 1671484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com wchar_t *wideFamilyName = new wchar_t[str_len]; 1672484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com // Now actually convert the string. 1673484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ::MultiByteToWideChar(CP_UTF8, 0, familyName, -1, 1674484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com wideFamilyName, str_len); 1675484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ::wcsncpy(lf->lfFaceName, wideFamilyName, LF_FACESIZE - 1); 1676484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com delete [] wideFamilyName; 1677484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com lf->lfFaceName[LF_FACESIZE-1] = L'\0'; 1678e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com#else 1679484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ::strncpy(lf->lfFaceName, familyName, LF_FACESIZE - 1); 1680484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com lf->lfFaceName[LF_FACESIZE - 1] = '\0'; 1681e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com#endif 1682e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com} 1683e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com 1684b374d6a62c0259387d90cad74753d8bad9ee1beabungemanvoid LogFontTypeface::onGetFamilyName(SkString* familyName) const { 16857103f182ce61280eacb35f1832df350b642a5381bungeman@google.com // Get the actual name of the typeface. The logfont may not know this. 16865526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.com HFONT font = CreateFontIndirect(&fLogFont); 16877103f182ce61280eacb35f1832df350b642a5381bungeman@google.com 16887103f182ce61280eacb35f1832df350b642a5381bungeman@google.com HDC deviceContext = ::CreateCompatibleDC(NULL); 16897103f182ce61280eacb35f1832df350b642a5381bungeman@google.com HFONT savefont = (HFONT)SelectObject(deviceContext, font); 16907103f182ce61280eacb35f1832df350b642a5381bungeman@google.com 1691b374d6a62c0259387d90cad74753d8bad9ee1beabungeman dcfontname_to_skstring(deviceContext, fLogFont, familyName); 16927103f182ce61280eacb35f1832df350b642a5381bungeman@google.com 16937103f182ce61280eacb35f1832df350b642a5381bungeman@google.com if (deviceContext) { 16947103f182ce61280eacb35f1832df350b642a5381bungeman@google.com ::SelectObject(deviceContext, savefont); 16957103f182ce61280eacb35f1832df350b642a5381bungeman@google.com ::DeleteDC(deviceContext); 16967103f182ce61280eacb35f1832df350b642a5381bungeman@google.com } 16977103f182ce61280eacb35f1832df350b642a5381bungeman@google.com if (font) { 16987103f182ce61280eacb35f1832df350b642a5381bungeman@google.com ::DeleteObject(font); 16997103f182ce61280eacb35f1832df350b642a5381bungeman@google.com } 1700b374d6a62c0259387d90cad74753d8bad9ee1beabungeman} 17017103f182ce61280eacb35f1832df350b642a5381bungeman@google.com 1702b374d6a62c0259387d90cad74753d8bad9ee1beabungemanvoid LogFontTypeface::onGetFontDescriptor(SkFontDescriptor* desc, 1703b374d6a62c0259387d90cad74753d8bad9ee1beabungeman bool* isLocalStream) const { 1704b374d6a62c0259387d90cad74753d8bad9ee1beabungeman SkString familyName; 1705b374d6a62c0259387d90cad74753d8bad9ee1beabungeman this->onGetFamilyName(&familyName); 17065526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.com desc->setFamilyName(familyName.c_str()); 17075526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.com *isLocalStream = this->fSerializeAsStream; 1708ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1709ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1710ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic bool getWidthAdvance(HDC hdc, int gId, int16_t* advance) { 1711ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Initialize the MAT2 structure to the identify transformation matrix. 1712ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com static const MAT2 mat2 = {SkScalarToFIXED(1), SkScalarToFIXED(0), 1713ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkScalarToFIXED(0), SkScalarToFIXED(1)}; 1714ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int flags = GGO_METRICS | GGO_GLYPH_INDEX; 1715ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com GLYPHMETRICS gm; 1716ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (GDI_ERROR == GetGlyphOutline(hdc, gId, flags, &gm, 0, NULL, &mat2)) { 1717ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return false; 1718ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1719ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(advance); 1720ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com *advance = gm.gmCellIncX; 1721ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return true; 1722ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1723ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 17242689f615e364dc48ad73826564f5b13d2329179dreed@google.comSkAdvancedTypefaceMetrics* LogFontTypeface::onGetAdvancedTypefaceMetrics( 172537ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org SkAdvancedTypefaceMetrics::PerGlyphInfo perGlyphInfo, 172637ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org const uint32_t* glyphIDs, 17272689f615e364dc48ad73826564f5b13d2329179dreed@google.com uint32_t glyphIDsCount) const { 17282689f615e364dc48ad73826564f5b13d2329179dreed@google.com LOGFONT lf = fLogFont; 1729ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkAdvancedTypefaceMetrics* info = NULL; 1730ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1731ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HDC hdc = CreateCompatibleDC(NULL); 1732ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT font = CreateFontIndirect(&lf); 1733ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT savefont = (HFONT)SelectObject(hdc, font); 1734ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT designFont = NULL; 1735ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 173605b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com const char stem_chars[] = {'i', 'I', '!', '1'}; 173705b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com int16_t min_width; 173805b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com unsigned glyphCount; 173905b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com 1740ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // To request design units, create a logical font whose height is specified 1741ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // as unitsPerEm. 1742ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com OUTLINETEXTMETRIC otm; 174339698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com unsigned int otmRet = GetOutlineTextMetrics(hdc, sizeof(otm), &otm); 174439698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (0 == otmRet) { 1745055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com call_ensure_accessible(lf); 174639698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com otmRet = GetOutlineTextMetrics(hdc, sizeof(otm), &otm); 174739698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 174839698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (!otmRet || !GetTextFace(hdc, LF_FACESIZE, lf.lfFaceName)) { 1749ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com goto Error; 1750ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1751ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com lf.lfHeight = -SkToS32(otm.otmEMSquare); 1752ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com designFont = CreateFontIndirect(&lf); 1753ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SelectObject(hdc, designFont); 1754ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (!GetOutlineTextMetrics(hdc, sizeof(otm), &otm)) { 1755ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com goto Error; 1756ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 17577bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com glyphCount = calculateGlyphCount(hdc, fLogFont); 1758ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1759ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info = new SkAdvancedTypefaceMetrics; 1760ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fEmSize = otm.otmEMSquare; 1761ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fLastGlyphID = SkToU16(glyphCount - 1); 1762ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle = 0; 17637103f182ce61280eacb35f1832df350b642a5381bungeman@google.com tchar_to_skstring(lf.lfFaceName, &info->fFontName); 17640f9bad01b0e7ad592ffb342dcf1d238b15329be1vandebo info->fFlags = SkAdvancedTypefaceMetrics::kEmpty_FontFlag; 17650f9bad01b0e7ad592ffb342dcf1d238b15329be1vandebo // If bit 1 is set, the font may not be embedded in a document. 17660f9bad01b0e7ad592ffb342dcf1d238b15329be1vandebo // If bit 1 is clear, the font can be embedded. 17670f9bad01b0e7ad592ffb342dcf1d238b15329be1vandebo // If bit 2 is set, the embedding is read-only. 17680f9bad01b0e7ad592ffb342dcf1d238b15329be1vandebo if (otm.otmfsType & 0x1) { 17690f9bad01b0e7ad592ffb342dcf1d238b15329be1vandebo info->fFlags = SkTBitOr<SkAdvancedTypefaceMetrics::FontFlags>( 17700f9bad01b0e7ad592ffb342dcf1d238b15329be1vandebo info->fFlags, 17710f9bad01b0e7ad592ffb342dcf1d238b15329be1vandebo SkAdvancedTypefaceMetrics::kNotEmbeddable_FontFlag); 17720f9bad01b0e7ad592ffb342dcf1d238b15329be1vandebo } 1773ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 17746744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org if (perGlyphInfo & SkAdvancedTypefaceMetrics::kToUnicode_PerGlyphInfo) { 17756744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org populate_glyph_to_unicode(hdc, glyphCount, &(info->fGlyphToUnicode)); 17766744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 17776744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 1778d41e70de196e78e21e1001d23a7259785cbd0835vandebo@chromium.org if (glyphCount > 0 && 1779d41e70de196e78e21e1001d23a7259785cbd0835vandebo@chromium.org (otm.otmTextMetrics.tmPitchAndFamily & TMPF_TRUETYPE)) { 1780ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fType = SkAdvancedTypefaceMetrics::kTrueType_Font; 1781ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 1782ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fType = SkAdvancedTypefaceMetrics::kOther_Font; 1783ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fItalicAngle = 0; 1784ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fAscent = 0; 1785ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fDescent = 0; 1786ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStemV = 0; 1787ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fCapHeight = 0; 1788ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fBBox = SkIRect::MakeEmpty(); 1789390c6d7a9018e233a6519397ac6c739fb21a99efedisonn@google.com goto ReturnInfo; 1790ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 17915aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org 1792ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // If this bit is clear the font is a fixed pitch font. 1793ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (!(otm.otmTextMetrics.tmPitchAndFamily & TMPF_FIXED_PITCH)) { 1794ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kFixedPitch_Style; 1795ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1796ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (otm.otmTextMetrics.tmItalic) { 1797ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kItalic_Style; 1798ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1799ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (otm.otmTextMetrics.tmPitchAndFamily & FF_ROMAN) { 1800ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kSerif_Style; 1801ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else if (otm.otmTextMetrics.tmPitchAndFamily & FF_SCRIPT) { 1802ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kScript_Style; 1803ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1804ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1805ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // The main italic angle of the font, in tenths of a degree counterclockwise 1806ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // from vertical. 1807ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fItalicAngle = otm.otmItalicAngle / 10; 1808ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fAscent = SkToS16(otm.otmTextMetrics.tmAscent); 1809ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fDescent = SkToS16(-otm.otmTextMetrics.tmDescent); 1810ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // TODO(ctguil): Use alternate cap height calculation. 1811ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // MSDN says otmsCapEmHeight is not support but it is returning a value on 1812ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // my Win7 box. 1813ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fCapHeight = otm.otmsCapEmHeight; 1814ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fBBox = 1815ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkIRect::MakeLTRB(otm.otmrcFontBox.left, otm.otmrcFontBox.top, 1816ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com otm.otmrcFontBox.right, otm.otmrcFontBox.bottom); 1817ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1818ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Figure out a good guess for StemV - Min width of i, I, !, 1. 1819ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // This probably isn't very good with an italic font. 182005b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com min_width = SHRT_MAX; 1821ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStemV = 0; 1822ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com for (size_t i = 0; i < SK_ARRAY_COUNT(stem_chars); i++) { 1823ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ABC abcWidths; 1824ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (GetCharABCWidths(hdc, stem_chars[i], stem_chars[i], &abcWidths)) { 1825ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int16_t width = abcWidths.abcB; 1826ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (width > 0 && width < min_width) { 1827ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com min_width = width; 1828ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStemV = min_width; 1829ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1830ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1831ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1832ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 18330f9bad01b0e7ad592ffb342dcf1d238b15329be1vandebo if (perGlyphInfo & SkAdvancedTypefaceMetrics::kHAdvance_PerGlyphInfo) { 18345aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org if (info->fStyle & SkAdvancedTypefaceMetrics::kFixedPitch_Style) { 18355aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org appendRange(&info->fGlyphWidths, 0); 18365aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org info->fGlyphWidths->fAdvance.append(1, &min_width); 18375aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org finishRange(info->fGlyphWidths.get(), 0, 18385aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org SkAdvancedTypefaceMetrics::WidthRange::kDefault); 18395aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org } else { 18405aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org info->fGlyphWidths.reset( 184137ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org getAdvanceData(hdc, 184237ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org glyphCount, 184337ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org glyphIDs, 184437ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org glyphIDsCount, 184537ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org &getWidthAdvance)); 18465aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org } 1847ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1848ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1849ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comError: 1850390c6d7a9018e233a6519397ac6c739fb21a99efedisonn@google.comReturnInfo: 1851ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SelectObject(hdc, savefont); 1852ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteObject(designFont); 1853ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteObject(font); 1854ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteDC(hdc); 1855ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1856ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return info; 1857ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1858ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1859a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com//Dummy representation of a Base64 encoded GUID from create_unique_font_name. 1860a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#define BASE64_GUID_ID "XXXXXXXXXXXXXXXXXXXXXXXX" 1861a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com//Length of GUID representation from create_id, including NULL terminator. 1862a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#define BASE64_GUID_ID_LEN SK_ARRAY_COUNT(BASE64_GUID_ID) 1863a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1864a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comSK_COMPILE_ASSERT(BASE64_GUID_ID_LEN < LF_FACESIZE, GUID_longer_than_facesize); 1865a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1866a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 1867a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com NameID 6 Postscript names cannot have the character '/'. 1868a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com It would be easier to hex encode the GUID, but that is 32 bytes, 1869a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com and many systems have issues with names longer than 28 bytes. 1870a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com The following need not be any standard base64 encoding. 1871a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com The encoded value is never decoded. 1872a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com*/ 1873d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.comstatic const char postscript_safe_base64_encode[] = 1874a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com "ABCDEFGHIJKLMNOPQRSTUVWXYZ" 1875a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com "abcdefghijklmnopqrstuvwxyz" 1876a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com "0123456789-_="; 1877a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1878a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 1879a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com Formats a GUID into Base64 and places it into buffer. 1880a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com buffer should have space for at least BASE64_GUID_ID_LEN characters. 1881a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com The string will always be null terminated. 1882a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com XXXXXXXXXXXXXXXXXXXXXXXX0 1883a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 1884a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comstatic void format_guid_b64(const GUID& guid, char* buffer, size_t bufferSize) { 1885a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com SkASSERT(bufferSize >= BASE64_GUID_ID_LEN); 1886a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com size_t written = SkBase64::Encode(&guid, sizeof(guid), buffer, postscript_safe_base64_encode); 1887a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com SkASSERT(written < LF_FACESIZE); 1888a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com buffer[written] = '\0'; 1889a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com} 1890a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1891a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 1892a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com Creates a Base64 encoded GUID and places it into buffer. 1893a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com buffer should have space for at least BASE64_GUID_ID_LEN characters. 1894a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com The string will always be null terminated. 1895a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com XXXXXXXXXXXXXXXXXXXXXXXX0 1896a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 1897a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comstatic HRESULT create_unique_font_name(char* buffer, size_t bufferSize) { 1898a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com GUID guid = {}; 1899a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com if (FAILED(CoCreateGuid(&guid))) { 1900a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return E_UNEXPECTED; 1901a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1902a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com format_guid_b64(guid, buffer, bufferSize); 1903a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1904a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return S_OK; 1905a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com} 1906a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1907a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 1908a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com Introduces a font to GDI. On failure will return NULL. The returned handle 1909a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com should eventually be passed to RemoveFontMemResourceEx. 1910a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com*/ 1911a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comstatic HANDLE activate_font(SkData* fontData) { 1912a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com DWORD numFonts = 0; 1913a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com //AddFontMemResourceEx just copies the data, but does not specify const. 1914a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com HANDLE fontHandle = AddFontMemResourceEx(const_cast<void*>(fontData->data()), 19154b18f5767ab1df7fedf0ff2e3a9eac7f7c500c36bungeman@google.com static_cast<DWORD>(fontData->size()), 1916a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 0, 1917a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com &numFonts); 1918a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1919a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com if (fontHandle != NULL && numFonts < 1) { 1920a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com RemoveFontMemResourceEx(fontHandle); 1921a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return NULL; 1922a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1923a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1924a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return fontHandle; 1925a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com} 1926a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1927437eea160b2f605d9074106891288e85baaecfefreed@google.comstatic SkTypeface* create_from_stream(SkStream* stream) { 1928a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Create a unique and unpredictable font name. 1929a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Avoids collisions and access from CSS. 1930a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com char familyName[BASE64_GUID_ID_LEN]; 1931a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com const int familyNameSize = SK_ARRAY_COUNT(familyName); 1932a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com if (FAILED(create_unique_font_name(familyName, familyNameSize))) { 1933a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return NULL; 1934a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1935d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com 1936a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Change the name of the font. 1937e9bbee397ce96aa6642a42823feb1d7c4a8ffd8bbungeman@google.com SkAutoTUnref<SkData> rewrittenFontData(SkOTUtils::RenameFont(stream, familyName, familyNameSize-1)); 1938e9bbee397ce96aa6642a42823feb1d7c4a8ffd8bbungeman@google.com if (NULL == rewrittenFontData.get()) { 1939a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return NULL; 1940a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1941ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1942a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Register the font with GDI. 1943e9bbee397ce96aa6642a42823feb1d7c4a8ffd8bbungeman@google.com HANDLE fontReference = activate_font(rewrittenFontData.get()); 1944a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com if (NULL == fontReference) { 1945a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return NULL; 1946a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1947a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1948a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Create the typeface. 1949a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com LOGFONT lf; 1950484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com logfont_for_name(familyName, &lf); 1951a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1952a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return SkCreateFontMemResourceTypefaceFromLOGFONT(lf, fontReference); 1953ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1954ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 19550042b9c2a2e6fe954cdfbcd5a5b7449cdf41a4c3reed@google.comSkStream* LogFontTypeface::onOpenStream(int* ttcIndex) const { 19560042b9c2a2e6fe954cdfbcd5a5b7449cdf41a4c3reed@google.com *ttcIndex = 0; 19570042b9c2a2e6fe954cdfbcd5a5b7449cdf41a4c3reed@google.com 1958f4c2622a1a3489988f2d85a81fdc132b17a92bddctguil@chromium.org const DWORD kTTCTag = 1959f4c2622a1a3489988f2d85a81fdc132b17a92bddctguil@chromium.org SkEndian_SwapBE32(SkSetFourByteTag('t', 't', 'c', 'f')); 19600042b9c2a2e6fe954cdfbcd5a5b7449cdf41a4c3reed@google.com LOGFONT lf = fLogFont; 1961ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1962ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HDC hdc = ::CreateCompatibleDC(NULL); 196359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com HFONT font = CreateFontIndirect(&lf); 1964ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT savefont = (HFONT)SelectObject(hdc, font); 1965ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1966d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org SkMemoryStream* stream = NULL; 1967d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org DWORD tables[2] = {kTTCTag, 0}; 1968d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org for (int i = 0; i < SK_ARRAY_COUNT(tables); i++) { 19694b18f5767ab1df7fedf0ff2e3a9eac7f7c500c36bungeman@google.com DWORD bufferSize = GetFontData(hdc, tables[i], 0, NULL, 0); 197039698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (bufferSize == GDI_ERROR) { 1971055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com call_ensure_accessible(lf); 197239698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com bufferSize = GetFontData(hdc, tables[i], 0, NULL, 0); 197339698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 1974d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org if (bufferSize != GDI_ERROR) { 1975d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org stream = new SkMemoryStream(bufferSize); 19764b18f5767ab1df7fedf0ff2e3a9eac7f7c500c36bungeman@google.com if (GetFontData(hdc, tables[i], 0, (void*)stream->getMemoryBase(), bufferSize)) { 1977d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org break; 1978d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org } else { 1979d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org delete stream; 1980d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org stream = NULL; 1981d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org } 1982d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org } 1983ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1984ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1985ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SelectObject(hdc, savefont); 1986ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteObject(font); 1987ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteDC(hdc); 1988ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1989ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return stream; 1990ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1991ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 19923c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.comstatic void bmpCharsToGlyphs(HDC hdc, const WCHAR* bmpChars, int count, uint16_t* glyphs, 19933c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com bool Ox1FHack) 19943c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com{ 19953c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com DWORD result = GetGlyphIndicesW(hdc, bmpChars, count, glyphs, GGI_MARK_NONEXISTING_GLYPHS); 19963c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (GDI_ERROR == result) { 19973c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com for (int i = 0; i < count; ++i) { 19983c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com glyphs[i] = 0; 19993c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 20003c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com return; 20013c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 20023c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 20033c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (Ox1FHack) { 20043c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com for (int i = 0; i < count; ++i) { 20053c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (0xFFFF == glyphs[i] || 0x1F == glyphs[i]) { 20063c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com glyphs[i] = 0; 20073c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 20083c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 20093c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } else { 20103c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com for (int i = 0; i < count; ++i) { 20113c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (0xFFFF == glyphs[i]){ 20123c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com glyphs[i] = 0; 20133c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 20143c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 20153c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 20163c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com} 20173c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 20183c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.comstatic uint16_t nonBmpCharToGlyph(HDC hdc, SCRIPT_CACHE* scriptCache, const WCHAR utf16[2]) { 20193c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com uint16_t index = 0; 20203c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com // Use uniscribe to detemine glyph index for non-BMP characters. 20213c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com static const int numWCHAR = 2; 20223c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com static const int maxItems = 2; 20233c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com // MSDN states that this can be NULL, but some things don't work then. 20243c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com SCRIPT_CONTROL scriptControl = { 0 }; 20253c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com // Add extra item to SCRIPT_ITEM to work around a bug (now documented). 20263c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com // https://bugzilla.mozilla.org/show_bug.cgi?id=366643 20273c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com SCRIPT_ITEM si[maxItems + 1]; 20283c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com int numItems; 20293c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com HRZM(ScriptItemize(utf16, numWCHAR, maxItems, &scriptControl, NULL, si, &numItems), 20303c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com "Could not itemize character."); 20313c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 20323c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com // Sometimes ScriptShape cannot find a glyph for a non-BMP and returns 2 space glyphs. 20333c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com static const int maxGlyphs = 2; 20343c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com SCRIPT_VISATTR vsa[maxGlyphs]; 20353c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com WORD outGlyphs[maxGlyphs]; 20363c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com WORD logClust[numWCHAR]; 20373c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com int numGlyphs; 20383c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com HRZM(ScriptShape(hdc, scriptCache, utf16, numWCHAR, maxGlyphs, &si[0].a, 20393c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com outGlyphs, logClust, vsa, &numGlyphs), 20403c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com "Could not shape character."); 20413c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (1 == numGlyphs) { 20423c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com index = outGlyphs[0]; 20433c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 20443c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com return index; 20453c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com} 20463c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 20473c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.comclass SkAutoHDC { 20483c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.compublic: 20493c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com SkAutoHDC(const LOGFONT& lf) 20503c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com : fHdc(::CreateCompatibleDC(NULL)) 20513c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com , fFont(::CreateFontIndirect(&lf)) 20523c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com , fSavefont((HFONT)SelectObject(fHdc, fFont)) 20533c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com { } 20543c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com ~SkAutoHDC() { 20553c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com SelectObject(fHdc, fSavefont); 20563c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com DeleteObject(fFont); 20573c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com DeleteDC(fHdc); 20583c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 20593c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com operator HDC() { return fHdc; } 20603c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.comprivate: 20613c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com HDC fHdc; 20623c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com HFONT fFont; 20633c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com HFONT fSavefont; 20643c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com}; 2065e61a86cfa00ea393ecc4a71fca94e1d476a37ecccommit-bot@chromium.org#define SkAutoHDC(...) SK_REQUIRE_LOCAL_VAR(SkAutoHDC) 20663c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 20673c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.comint LogFontTypeface::onCharsToGlyphs(const void* chars, Encoding encoding, 20683c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com uint16_t userGlyphs[], int glyphCount) const 20693c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com{ 20703c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com SkAutoHDC hdc(fLogFont); 20713c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 20723c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com TEXTMETRIC tm; 20733c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (0 == GetTextMetrics(hdc, &tm)) { 20743c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com call_ensure_accessible(fLogFont); 20753c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (0 == GetTextMetrics(hdc, &tm)) { 20763c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com tm.tmPitchAndFamily = TMPF_TRUETYPE; 20773c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 20783c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 20793c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com bool Ox1FHack = !(tm.tmPitchAndFamily & TMPF_VECTOR) /*&& winVer < Vista */; 20803c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 20813c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com SkAutoSTMalloc<256, uint16_t> scratchGlyphs; 20823c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com uint16_t* glyphs; 20833c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (userGlyphs != NULL) { 20843c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com glyphs = userGlyphs; 20853c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } else { 20863c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com glyphs = scratchGlyphs.reset(glyphCount); 20873c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 20883c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 20893c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com SCRIPT_CACHE sc = 0; 20903c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com switch (encoding) { 20913c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com case SkTypeface::kUTF8_Encoding: { 20923c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com static const int scratchCount = 256; 20933c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com WCHAR scratch[scratchCount]; 20943c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com int glyphIndex = 0; 20953c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com const char* currentUtf8 = reinterpret_cast<const char*>(chars); 20963c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com SkUnichar currentChar; 20973c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (glyphCount) { 20983c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com currentChar = SkUTF8_NextUnichar(¤tUtf8); 20993c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21003c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com while (glyphIndex < glyphCount) { 21013c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com // Try a run of bmp. 21023c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com int glyphsLeft = SkTMin(glyphCount - glyphIndex, scratchCount); 21033c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com int runLength = 0; 21043c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com while (runLength < glyphsLeft && currentChar <= 0xFFFF) { 21053c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com scratch[runLength] = static_cast<WCHAR>(currentChar); 21063c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com ++runLength; 21073c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (runLength < glyphsLeft) { 21083c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com currentChar = SkUTF8_NextUnichar(¤tUtf8); 21093c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21103c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21113c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (runLength) { 21123c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com bmpCharsToGlyphs(hdc, scratch, runLength, &glyphs[glyphIndex], Ox1FHack); 21133c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com glyphIndex += runLength; 21143c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21153c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 21163c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com // Try a run of non-bmp. 21173c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com while (glyphIndex < glyphCount && currentChar > 0xFFFF) { 21183c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com SkUTF16_FromUnichar(currentChar, reinterpret_cast<uint16_t*>(scratch)); 21193c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com glyphs[glyphIndex] = nonBmpCharToGlyph(hdc, &sc, scratch); 21203c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com ++glyphIndex; 21213c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (glyphIndex < glyphCount) { 21223c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com currentChar = SkUTF8_NextUnichar(¤tUtf8); 21233c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21243c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21253c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21263c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com break; 21273c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21283c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com case SkTypeface::kUTF16_Encoding: { 21293c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com int glyphIndex = 0; 21303c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com const WCHAR* currentUtf16 = reinterpret_cast<const WCHAR*>(chars); 21313c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com while (glyphIndex < glyphCount) { 21323c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com // Try a run of bmp. 21333c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com int glyphsLeft = glyphCount - glyphIndex; 21343c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com int runLength = 0; 21353c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com while (runLength < glyphsLeft && !SkUTF16_IsHighSurrogate(currentUtf16[runLength])) { 21363c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com ++runLength; 21373c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21383c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (runLength) { 21393c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com bmpCharsToGlyphs(hdc, currentUtf16, runLength, &glyphs[glyphIndex], Ox1FHack); 21403c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com glyphIndex += runLength; 21413c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com currentUtf16 += runLength; 21423c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21433c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 21443c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com // Try a run of non-bmp. 21453c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com while (glyphIndex < glyphCount && SkUTF16_IsHighSurrogate(*currentUtf16)) { 21463c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com glyphs[glyphIndex] = nonBmpCharToGlyph(hdc, &sc, currentUtf16); 21473c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com ++glyphIndex; 21483c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com currentUtf16 += 2; 21493c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21503c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21513c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com break; 21523c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21533c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com case SkTypeface::kUTF32_Encoding: { 21543c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com static const int scratchCount = 256; 21553c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com WCHAR scratch[scratchCount]; 21563c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com int glyphIndex = 0; 21573c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com const uint32_t* utf32 = reinterpret_cast<const uint32_t*>(chars); 21583c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com while (glyphIndex < glyphCount) { 21593c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com // Try a run of bmp. 21603c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com int glyphsLeft = SkTMin(glyphCount - glyphIndex, scratchCount); 21613c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com int runLength = 0; 21623c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com while (runLength < glyphsLeft && utf32[glyphIndex + runLength] <= 0xFFFF) { 21633c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com scratch[runLength] = static_cast<WCHAR>(utf32[glyphIndex + runLength]); 21643c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com ++runLength; 21653c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21663c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (runLength) { 21673c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com bmpCharsToGlyphs(hdc, scratch, runLength, &glyphs[glyphIndex], Ox1FHack); 21683c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com glyphIndex += runLength; 21693c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21703c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 21713c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com // Try a run of non-bmp. 21723c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com while (glyphIndex < glyphCount && utf32[glyphIndex] > 0xFFFF) { 21733c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com SkUTF16_FromUnichar(utf32[glyphIndex], reinterpret_cast<uint16_t*>(scratch)); 21743c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com glyphs[glyphIndex] = nonBmpCharToGlyph(hdc, &sc, scratch); 21753c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com ++glyphIndex; 21763c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21773c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21783c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com break; 21793c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21803c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com default: 21813c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com SK_CRASH(); 21823c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21833c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 21843c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (sc) { 21853c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com ::ScriptFreeCache(&sc); 21863c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21873c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 21883c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com for (int i = 0; i < glyphCount; ++i) { 21893c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (0 == glyphs[i]) { 21903c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com return i; 21913c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21923c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21933c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com return glyphCount; 21943c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com} 21953c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 21967bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.comint LogFontTypeface::onCountGlyphs() const { 21977bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com HDC hdc = ::CreateCompatibleDC(NULL); 21987bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com HFONT font = CreateFontIndirect(&fLogFont); 21997bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com HFONT savefont = (HFONT)SelectObject(hdc, font); 22007bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 22017bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com unsigned int glyphCount = calculateGlyphCount(hdc, fLogFont); 22027bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 22037bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com SelectObject(hdc, savefont); 22047bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com DeleteObject(font); 22057bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com DeleteDC(hdc); 22067bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 22077bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com return glyphCount; 22087bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com} 22097bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 22107bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.comint LogFontTypeface::onGetUPEM() const { 22117bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com HDC hdc = ::CreateCompatibleDC(NULL); 22127bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com HFONT font = CreateFontIndirect(&fLogFont); 22137bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com HFONT savefont = (HFONT)SelectObject(hdc, font); 22147bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 22157bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com unsigned int upem = calculateUPEM(hdc, fLogFont); 22167bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 22177bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com SelectObject(hdc, savefont); 22187bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com DeleteObject(font); 22197bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com DeleteDC(hdc); 22207bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 22217bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com return upem; 22227bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com} 22237bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 2224839702b61934914118ec557dd641be322eba3b5fbungeman@google.comSkTypeface::LocalizedStrings* LogFontTypeface::onCreateFamilyNameIterator() const { 2225a980269c2498836101146adc729ef780fb89824ebungeman@google.com SkTypeface::LocalizedStrings* nameIter = 2226a980269c2498836101146adc729ef780fb89824ebungeman@google.com SkOTUtils::LocalizedStrings_NameTable::CreateForFamilyNames(*this); 2227a980269c2498836101146adc729ef780fb89824ebungeman@google.com if (NULL == nameIter) { 2228a980269c2498836101146adc729ef780fb89824ebungeman@google.com SkString familyName; 2229a980269c2498836101146adc729ef780fb89824ebungeman@google.com this->getFamilyName(&familyName); 2230a980269c2498836101146adc729ef780fb89824ebungeman@google.com SkString language("und"); //undetermined 2231a980269c2498836101146adc729ef780fb89824ebungeman@google.com nameIter = new SkOTUtils::LocalizedStrings_SingleName(familyName, language); 2232a980269c2498836101146adc729ef780fb89824ebungeman@google.com } 2233a980269c2498836101146adc729ef780fb89824ebungeman@google.com return nameIter; 2234a980269c2498836101146adc729ef780fb89824ebungeman@google.com} 2235a980269c2498836101146adc729ef780fb89824ebungeman@google.com 2236b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.comint LogFontTypeface::onGetTableTags(SkFontTableTag tags[]) const { 2237b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com SkSFNTHeader header; 2238b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com if (sizeof(header) != this->onGetTableData(0, 0, sizeof(header), &header)) { 2239b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com return 0; 2240b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com } 2241b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com 2242b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com int numTables = SkEndian_SwapBE16(header.numTables); 2243b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com 2244b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com if (tags) { 2245b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com size_t size = numTables * sizeof(SkSFNTHeader::TableDirectoryEntry); 2246b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com SkAutoSTMalloc<0x20, SkSFNTHeader::TableDirectoryEntry> dir(numTables); 2247b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com if (size != this->onGetTableData(0, sizeof(header), size, dir.get())) { 2248b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com return 0; 2249b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com } 2250b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com 2251b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com for (int i = 0; i < numTables; ++i) { 2252b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com tags[i] = SkEndian_SwapBE32(dir[i].tag); 2253b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com } 2254b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com } 2255b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com return numTables; 2256b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com} 2257b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com 2258b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.comsize_t LogFontTypeface::onGetTableData(SkFontTableTag tag, size_t offset, 2259b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com size_t length, void* data) const 2260b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com{ 2261b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com LOGFONT lf = fLogFont; 2262b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com 2263b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com HDC hdc = ::CreateCompatibleDC(NULL); 2264b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com HFONT font = CreateFontIndirect(&lf); 2265b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com HFONT savefont = (HFONT)SelectObject(hdc, font); 2266b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com 2267b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com tag = SkEndian_SwapBE32(tag); 2268b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com if (NULL == data) { 2269b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com length = 0; 2270b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com } 22718b169311b59ab84e8ca6f3630a1e960cc1be751erobertphillips@google.com DWORD bufferSize = GetFontData(hdc, tag, (DWORD) offset, data, (DWORD) length); 2272b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com if (bufferSize == GDI_ERROR) { 2273b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com call_ensure_accessible(lf); 22748b169311b59ab84e8ca6f3630a1e960cc1be751erobertphillips@google.com bufferSize = GetFontData(hdc, tag, (DWORD) offset, data, (DWORD) length); 2275b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com } 2276b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com 2277b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com SelectObject(hdc, savefont); 2278b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com DeleteObject(font); 2279b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com DeleteDC(hdc); 2280b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com 2281b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com return bufferSize == GDI_ERROR ? 0 : bufferSize; 2282b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com} 2283b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com 22840da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.comSkScalerContext* LogFontTypeface::onCreateScalerContext(const SkDescriptor* desc) const { 228530ddd615c447fed73286151b463af20d309c85f1reed@google.com SkScalerContext_GDI* ctx = SkNEW_ARGS(SkScalerContext_GDI, 228684e22d847fc84727bc220947162363ee1fe068fcreed@google.com (const_cast<LogFontTypeface*>(this), desc)); 228784e22d847fc84727bc220947162363ee1fe068fcreed@google.com if (!ctx->isValid()) { 228884e22d847fc84727bc220947162363ee1fe068fcreed@google.com SkDELETE(ctx); 228984e22d847fc84727bc220947162363ee1fe068fcreed@google.com ctx = NULL; 229084e22d847fc84727bc220947162363ee1fe068fcreed@google.com } 229184e22d847fc84727bc220947162363ee1fe068fcreed@google.com return ctx; 2292ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 2293ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 22940da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.comvoid LogFontTypeface::onFilterRec(SkScalerContextRec* rec) const { 2295c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org if (rec->fFlags & SkScalerContext::kLCD_BGROrder_Flag || 2296c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org rec->fFlags & SkScalerContext::kLCD_Vertical_Flag) 2297c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org { 2298c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org rec->fMaskFormat = SkMask::kA8_Format; 2299c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org rec->fFlags |= SkScalerContext::kGenA8FromLCD_Flag; 2300c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org } 2301c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org 2302410780677af260e32948b02c0725ef6ad761260cbungeman unsigned flagsWeDontSupport = SkScalerContext::kVertical_Flag | 2303410780677af260e32948b02c0725ef6ad761260cbungeman SkScalerContext::kDevKernText_Flag | 2304f6f56878bc96386882721b15ba610984185d3dc9bungeman@google.com SkScalerContext::kForceAutohinting_Flag | 2305e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kEmbeddedBitmapText_Flag | 2306e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kEmbolden_Flag | 2307e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kLCD_BGROrder_Flag | 2308e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kLCD_Vertical_Flag; 2309e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com rec->fFlags &= ~flagsWeDontSupport; 2310e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com 2311e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkPaint::Hinting h = rec->getHinting(); 2312e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com switch (h) { 2313e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kNo_Hinting: 23140abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com break; 2315e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kSlight_Hinting: 23160abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // Only do slight hinting when axis aligned. 23177c86d8eb3a61eae188bc8af2cd0363858eaea07ebungeman@google.com // TODO: re-enable slight hinting when FontHostTest can pass. 23187c86d8eb3a61eae188bc8af2cd0363858eaea07ebungeman@google.com //if (!isAxisAligned(*rec)) { 23190abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com h = SkPaint::kNo_Hinting; 23207c86d8eb3a61eae188bc8af2cd0363858eaea07ebungeman@google.com //} 2321e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com break; 2322e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kNormal_Hinting: 2323e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kFull_Hinting: 23240abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // TODO: need to be able to distinguish subpixel positioned glyphs 23250abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // and linear metrics. 23260abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com //rec->fFlags &= ~SkScalerContext::kSubpixelPositioning_Flag; 2327e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com h = SkPaint::kNormal_Hinting; 2328e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com break; 2329e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com default: 23300c00f21fee3f5cfa3aa7e5d46ff94cb8cf340451tomhudson@google.com SkDEBUGFAIL("unknown hinting"); 2331e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com } 23320abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com //TODO: if this is a bitmap font, squash hinting and subpixel. 2333e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com rec->setHinting(h); 2334da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com 23359181aa84aa288d2bc3ab079b6b40a79ac87d8807reed@google.com// turn this off since GDI might turn A8 into BW! Need a bigger fix. 23369181aa84aa288d2bc3ab079b6b40a79ac87d8807reed@google.com#if 0 2337da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com // Disable LCD when rotated, since GDI's output is ugly 2338da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com if (isLCD(*rec) && !isAxisAligned(*rec)) { 2339da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com rec->fMaskFormat = SkMask::kA8_Format; 2340da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com } 23419181aa84aa288d2bc3ab079b6b40a79ac87d8807reed@google.com#endif 2342754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com 23430da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.com if (!fCanBeLCD && isLCD(*rec)) { 2344cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com rec->fMaskFormat = SkMask::kA8_Format; 2345cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com rec->fFlags &= ~SkScalerContext::kGenA8FromLCD_Flag; 2346754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } 2347754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com} 2348070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.com 2349070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.com/////////////////////////////////////////////////////////////////////////////// 2350070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.com 2351070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.com#include "SkFontMgr.h" 2352484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com#include "SkDataTable.h" 2353484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2354a980269c2498836101146adc729ef780fb89824ebungeman@google.comstatic bool valid_logfont_for_enum(const LOGFONT& lf) { 2355a980269c2498836101146adc729ef780fb89824ebungeman@google.com // TODO: Vector FON is unsupported and should not be listed. 2356a980269c2498836101146adc729ef780fb89824ebungeman@google.com return 2357a980269c2498836101146adc729ef780fb89824ebungeman@google.com // Ignore implicit vertical variants. 2358a980269c2498836101146adc729ef780fb89824ebungeman@google.com lf.lfFaceName[0] && lf.lfFaceName[0] != '@' 2359a980269c2498836101146adc729ef780fb89824ebungeman@google.com 2360a980269c2498836101146adc729ef780fb89824ebungeman@google.com // DEFAULT_CHARSET is used to get all fonts, but also implies all 2361a980269c2498836101146adc729ef780fb89824ebungeman@google.com // character sets. Filter assuming all fonts support ANSI_CHARSET. 2362a980269c2498836101146adc729ef780fb89824ebungeman@google.com && ANSI_CHARSET == lf.lfCharSet 2363a980269c2498836101146adc729ef780fb89824ebungeman@google.com ; 2364a980269c2498836101146adc729ef780fb89824ebungeman@google.com} 2365a980269c2498836101146adc729ef780fb89824ebungeman@google.com 2366a980269c2498836101146adc729ef780fb89824ebungeman@google.com/** An EnumFontFamExProc implementation which interprets builderParam as 2367a980269c2498836101146adc729ef780fb89824ebungeman@google.com * an SkTDArray<ENUMLOGFONTEX>* and appends logfonts which 2368a980269c2498836101146adc729ef780fb89824ebungeman@google.com * pass the valid_logfont_for_enum predicate. 2369a980269c2498836101146adc729ef780fb89824ebungeman@google.com */ 2370a980269c2498836101146adc729ef780fb89824ebungeman@google.comstatic int CALLBACK enum_family_proc(const LOGFONT* lf, const TEXTMETRIC*, 2371a980269c2498836101146adc729ef780fb89824ebungeman@google.com DWORD fontType, LPARAM builderParam) { 2372a980269c2498836101146adc729ef780fb89824ebungeman@google.com if (valid_logfont_for_enum(*lf)) { 2373a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com SkTDArray<ENUMLOGFONTEX>* array = (SkTDArray<ENUMLOGFONTEX>*)builderParam; 2374a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com *array->append() = *(ENUMLOGFONTEX*)lf; 2375484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2376484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return 1; // non-zero means continue 2377484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com} 2378484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2379484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comclass SkFontStyleSetGDI : public SkFontStyleSet { 2380484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.compublic: 2381a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com SkFontStyleSetGDI(const TCHAR familyName[]) { 2382a980269c2498836101146adc729ef780fb89824ebungeman@google.com LOGFONT lf; 2383a980269c2498836101146adc729ef780fb89824ebungeman@google.com sk_bzero(&lf, sizeof(lf)); 2384a980269c2498836101146adc729ef780fb89824ebungeman@google.com lf.lfCharSet = DEFAULT_CHARSET; 2385a980269c2498836101146adc729ef780fb89824ebungeman@google.com _tcscpy_s(lf.lfFaceName, familyName); 2386a980269c2498836101146adc729ef780fb89824ebungeman@google.com 2387484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com HDC hdc = ::CreateCompatibleDC(NULL); 2388a980269c2498836101146adc729ef780fb89824ebungeman@google.com ::EnumFontFamiliesEx(hdc, &lf, enum_family_proc, (LPARAM)&fArray, 0); 2389484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ::DeleteDC(hdc); 2390484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2391484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 239272c9faab45124e08c85f70ca38536914862d947cmtklein int count() SK_OVERRIDE { 2393484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return fArray.count(); 2394484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2395484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 239672c9faab45124e08c85f70ca38536914862d947cmtklein void getStyle(int index, SkFontStyle* fs, SkString* styleName) SK_OVERRIDE { 2397484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com if (fs) { 2398a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungeman *fs = get_style(fArray[index].elfLogFont); 2399a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com } 2400a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com if (styleName) { 2401a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com const ENUMLOGFONTEX& ref = fArray[index]; 2402a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com // For some reason, ENUMLOGFONTEX and LOGFONT disagree on their type in the 2403a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com // non-unicode version. 2404a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com // ENUMLOGFONTEX uses BYTE 2405a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com // LOGFONT uses CHAR 2406a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com // Here we assert they that the style name is logically the same (size) as 2407a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com // a TCHAR, so we can use the same converter function. 2408a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com SkASSERT(sizeof(TCHAR) == sizeof(ref.elfStyle[0])); 2409a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com tchar_to_skstring((const TCHAR*)ref.elfStyle, styleName); 2410484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2411484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2412484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 241372c9faab45124e08c85f70ca38536914862d947cmtklein SkTypeface* createTypeface(int index) SK_OVERRIDE { 2414a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com return SkCreateTypefaceFromLOGFONT(fArray[index].elfLogFont); 2415484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2416484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 241772c9faab45124e08c85f70ca38536914862d947cmtklein SkTypeface* matchStyle(const SkFontStyle& pattern) SK_OVERRIDE { 2418484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com // todo: 2419a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com return SkCreateTypefaceFromLOGFONT(fArray[0].elfLogFont); 2420484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2421484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2422484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comprivate: 2423a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com SkTDArray<ENUMLOGFONTEX> fArray; 2424484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com}; 2425484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2426484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comclass SkFontMgrGDI : public SkFontMgr { 2427a980269c2498836101146adc729ef780fb89824ebungeman@google.compublic: 2428a980269c2498836101146adc729ef780fb89824ebungeman@google.com SkFontMgrGDI() { 2429484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com LOGFONT lf; 2430484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com sk_bzero(&lf, sizeof(lf)); 2431484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com lf.lfCharSet = DEFAULT_CHARSET; 2432484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2433484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com HDC hdc = ::CreateCompatibleDC(NULL); 2434484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ::EnumFontFamiliesEx(hdc, &lf, enum_family_proc, (LPARAM)&fLogFontArray, 0); 2435484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ::DeleteDC(hdc); 2436484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2437484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2438484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comprotected: 243972c9faab45124e08c85f70ca38536914862d947cmtklein int onCountFamilies() const SK_OVERRIDE { 2440484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return fLogFontArray.count(); 2441484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2442484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 244372c9faab45124e08c85f70ca38536914862d947cmtklein void onGetFamilyName(int index, SkString* familyName) const SK_OVERRIDE { 2444484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com SkASSERT((unsigned)index < (unsigned)fLogFontArray.count()); 2445a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com tchar_to_skstring(fLogFontArray[index].elfLogFont.lfFaceName, familyName); 2446484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2447484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 244872c9faab45124e08c85f70ca38536914862d947cmtklein SkFontStyleSet* onCreateStyleSet(int index) const SK_OVERRIDE { 2449484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com SkASSERT((unsigned)index < (unsigned)fLogFontArray.count()); 2450a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com return SkNEW_ARGS(SkFontStyleSetGDI, (fLogFontArray[index].elfLogFont.lfFaceName)); 2451484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2452484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 245372c9faab45124e08c85f70ca38536914862d947cmtklein SkFontStyleSet* onMatchFamily(const char familyName[]) const SK_OVERRIDE { 2454484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com if (NULL == familyName) { 2455484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com familyName = ""; // do we need this check??? 2456484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2457484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com LOGFONT lf; 2458484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com logfont_for_name(familyName, &lf); 2459a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com return SkNEW_ARGS(SkFontStyleSetGDI, (lf.lfFaceName)); 2460484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2461484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2462484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual SkTypeface* onMatchFamilyStyle(const char familyName[], 2463967dee32ef540b7c0fed6d0cd518d42b9b345c78commit-bot@chromium.org const SkFontStyle& fontstyle) const SK_OVERRIDE { 2464437eea160b2f605d9074106891288e85baaecfefreed@google.com // could be in base impl 2465484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com SkAutoTUnref<SkFontStyleSet> sset(this->matchFamily(familyName)); 2466484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return sset->matchStyle(fontstyle); 2467484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2468484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 246933068c19f1b8c18f000c18935ad11f1082534b5adjsollen virtual SkTypeface* onMatchFamilyStyleCharacter(const char familyName[], const SkFontStyle&, 247033068c19f1b8c18f000c18935ad11f1082534b5adjsollen const char* bcp47[], int bcp47Count, 247133068c19f1b8c18f000c18935ad11f1082534b5adjsollen SkUnichar character) const SK_OVERRIDE { 247233068c19f1b8c18f000c18935ad11f1082534b5adjsollen return NULL; 247333068c19f1b8c18f000c18935ad11f1082534b5adjsollen } 247433068c19f1b8c18f000c18935ad11f1082534b5adjsollen 2475484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual SkTypeface* onMatchFaceStyle(const SkTypeface* familyMember, 2476967dee32ef540b7c0fed6d0cd518d42b9b345c78commit-bot@chromium.org const SkFontStyle& fontstyle) const SK_OVERRIDE { 2477437eea160b2f605d9074106891288e85baaecfefreed@google.com // could be in base impl 2478484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com SkString familyName; 2479484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ((LogFontTypeface*)familyMember)->getFamilyName(&familyName); 2480484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return this->matchFamilyStyle(familyName.c_str(), fontstyle); 2481484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2482484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 248372c9faab45124e08c85f70ca38536914862d947cmtklein SkTypeface* onCreateFromStream(SkStream* stream, int ttcIndex) const SK_OVERRIDE { 2484437eea160b2f605d9074106891288e85baaecfefreed@google.com return create_from_stream(stream); 2485484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2486437eea160b2f605d9074106891288e85baaecfefreed@google.com 248772c9faab45124e08c85f70ca38536914862d947cmtklein SkTypeface* onCreateFromData(SkData* data, int ttcIndex) const SK_OVERRIDE { 2488437eea160b2f605d9074106891288e85baaecfefreed@google.com // could be in base impl 2489437eea160b2f605d9074106891288e85baaecfefreed@google.com SkAutoTUnref<SkStream> stream(SkNEW_ARGS(SkMemoryStream, (data))); 2490437eea160b2f605d9074106891288e85baaecfefreed@google.com return this->createFromStream(stream); 2491484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2492437eea160b2f605d9074106891288e85baaecfefreed@google.com 249372c9faab45124e08c85f70ca38536914862d947cmtklein SkTypeface* onCreateFromFile(const char path[], int ttcIndex) const SK_OVERRIDE { 2494437eea160b2f605d9074106891288e85baaecfefreed@google.com // could be in base impl 2495437eea160b2f605d9074106891288e85baaecfefreed@google.com SkAutoTUnref<SkStream> stream(SkStream::NewFromFile(path)); 2496437eea160b2f605d9074106891288e85baaecfefreed@google.com return this->createFromStream(stream); 2497484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2498484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 249930ddd615c447fed73286151b463af20d309c85f1reed@google.com virtual SkTypeface* onLegacyCreateTypeface(const char familyName[], 2500967dee32ef540b7c0fed6d0cd518d42b9b345c78commit-bot@chromium.org unsigned styleBits) const SK_OVERRIDE { 2501f7159bba8efc13f6b3a9a86e92b48451b6aa8073bungeman@google.com LOGFONT lf; 2502f7159bba8efc13f6b3a9a86e92b48451b6aa8073bungeman@google.com if (NULL == familyName) { 2503f7159bba8efc13f6b3a9a86e92b48451b6aa8073bungeman@google.com lf = get_default_font(); 2504f7159bba8efc13f6b3a9a86e92b48451b6aa8073bungeman@google.com } else { 2505f7159bba8efc13f6b3a9a86e92b48451b6aa8073bungeman@google.com logfont_for_name(familyName, &lf); 2506f7159bba8efc13f6b3a9a86e92b48451b6aa8073bungeman@google.com } 2507a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungeman 2508a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungeman SkTypeface::Style style = (SkTypeface::Style)styleBits; 2509a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungeman lf.lfWeight = (style & SkTypeface::kBold) != 0 ? FW_BOLD : FW_NORMAL; 2510a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungeman lf.lfItalic = ((style & SkTypeface::kItalic) != 0); 2511f7159bba8efc13f6b3a9a86e92b48451b6aa8073bungeman@google.com return SkCreateTypefaceFromLOGFONT(lf); 251230ddd615c447fed73286151b463af20d309c85f1reed@google.com } 251330ddd615c447fed73286151b463af20d309c85f1reed@google.com 2514484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comprivate: 2515a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com SkTDArray<ENUMLOGFONTEX> fLogFontArray; 2516484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com}; 2517070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.com 251830ddd615c447fed73286151b463af20d309c85f1reed@google.com/////////////////////////////////////////////////////////////////////////////// 251930ddd615c447fed73286151b463af20d309c85f1reed@google.com 2520bfc6cc4b6c41e99d3887d268fbf798aa3abc9a27bungeman@google.comSkFontMgr* SkFontMgr_New_GDI() { 2521484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return SkNEW(SkFontMgrGDI); 2522070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.com} 2523