SkFontHost_win.cpp revision 99fe82260633fcf5d92cca38d12ef0937ecca61c
1ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com/* 2ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com * Copyright 2006 The Android Open Source Project 3ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com * 4ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com * Use of this source code is governed by a BSD-style license that can be 5ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com * found in the LICENSE file. 6ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com */ 7ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 8ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkAdvancedTypefaceMetrics.h" 9a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include "SkBase64.h" 101bfe01d06b896eca94c80d9af9a6bb30216b5e42bungeman@google.com#include "SkColorPriv.h" 11a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include "SkData.h" 12a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include "SkDescriptor.h" 13e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com#include "SkFontDescriptor.h" 14bbe50131413098bffed9186660c41f047d881596bungeman@google.com#include "SkGlyph.h" 1527f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com#include "SkHRESULT.h" 1697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com#include "SkMaskGamma.h" 17d3fbd34099a530b5415c95b1f2f8149ac417b9b3bungeman@google.com#include "SkMatrix22.h" 187bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com#include "SkOTTable_maxp.h" 19a980269c2498836101146adc729ef780fb89824ebungeman@google.com#include "SkOTTable_name.h" 20a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include "SkOTUtils.h" 2127889877c0e3c909dd4afd7b5e7b1d58cbf61ae6reed@google.com#include "SkPath.h" 22b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com#include "SkSFNTHeader.h" 23ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkStream.h" 24a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include "SkString.h" 2505a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com#include "SkTemplates.h" 26ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkTypeface_win.h" 2759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com#include "SkTypefaceCache.h" 28ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkUtils.h" 29ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 30a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include "SkTypes.h" 31a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include <tchar.h> 32a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include <usp10.h> 33a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include <objbase.h> 34ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 35f210f505ffffccc15ae5e91f8ccb9763ba7fc152reed@google.comstatic void (*gEnsureLOGFONTAccessibleProc)(const LOGFONT&); 36f210f505ffffccc15ae5e91f8ccb9763ba7fc152reed@google.com 37f210f505ffffccc15ae5e91f8ccb9763ba7fc152reed@google.comvoid SkTypeface_SetEnsureLOGFONTAccessibleProc(void (*proc)(const LOGFONT&)) { 38f210f505ffffccc15ae5e91f8ccb9763ba7fc152reed@google.com gEnsureLOGFONTAccessibleProc = proc; 39f210f505ffffccc15ae5e91f8ccb9763ba7fc152reed@google.com} 40f210f505ffffccc15ae5e91f8ccb9763ba7fc152reed@google.com 41055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.comstatic void call_ensure_accessible(const LOGFONT& lf) { 42055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com if (gEnsureLOGFONTAccessibleProc) { 43055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com gEnsureLOGFONTAccessibleProc(lf); 44055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com } 45055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com} 46055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com 47055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com/////////////////////////////////////////////////////////////////////////////// 48055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com 496f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com// always packed xxRRGGBB 506f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.comtypedef uint32_t SkGdiRGB; 516f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com 52a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com// define this in your Makefile or .gyp to enforce AA requests 53a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com// which GDI ignores at small sizes. This flag guarantees AA 54a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com// for rotated text, regardless of GDI's notions. 55a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com//#define SK_ENFORCE_ROTATED_TEXT_AA_ON_WINDOWS 56a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 5782a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.comstatic bool isLCD(const SkScalerContext::Rec& rec) { 58d54d3fc82456f8789b3e4dff40faeb7b670bcf4breed return SkMask::kLCD16_Format == rec.fMaskFormat; 5982a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com} 6082a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 61a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.comstatic bool bothZero(SkScalar a, SkScalar b) { 62a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com return 0 == a && 0 == b; 63a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com} 64a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 65a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com// returns false if there is any non-90-rotation or skew 66a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.comstatic bool isAxisAligned(const SkScalerContext::Rec& rec) { 67a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com return 0 == rec.fPreSkewX && 68a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com (bothZero(rec.fPost2x2[0][1], rec.fPost2x2[1][0]) || 69a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com bothZero(rec.fPost2x2[0][0], rec.fPost2x2[1][1])); 70a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com} 71a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 72a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.comstatic bool needToRenderWithSkia(const SkScalerContext::Rec& rec) { 73a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com#ifdef SK_ENFORCE_ROTATED_TEXT_AA_ON_WINDOWS 74a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // What we really want to catch is when GDI will ignore the AA request and give 75a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // us BW instead. Smallish rotated text is one heuristic, so this code is just 76a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // an approximation. We shouldn't need to do this for larger sizes, but at those 77a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // sizes, the quality difference gets less and less between our general 78a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // scanconverter and GDI's. 79a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com if (SkMask::kA8_Format == rec.fMaskFormat && !isAxisAligned(rec)) { 80a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com return true; 81a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com } 82a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com#endif 830abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return rec.getHinting() == SkPaint::kNo_Hinting || rec.getHinting() == SkPaint::kSlight_Hinting; 84a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com} 85a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 86ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comusing namespace skia_advanced_typeface_metrics_utils; 87ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 88a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.comstatic void tchar_to_skstring(const TCHAR t[], SkString* s) { 89484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com#ifdef UNICODE 90484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com size_t sSize = WideCharToMultiByte(CP_UTF8, 0, t, -1, NULL, 0, NULL, NULL); 91484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com s->resize(sSize); 92484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com WideCharToMultiByte(CP_UTF8, 0, t, -1, s->writable_str(), sSize, NULL, NULL); 93484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com#else 94484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com s->set(t); 95484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com#endif 96484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com} 97484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 98a980269c2498836101146adc729ef780fb89824ebungeman@google.comstatic void dcfontname_to_skstring(HDC deviceContext, const LOGFONT& lf, SkString* familyName) { 99a980269c2498836101146adc729ef780fb89824ebungeman@google.com int fontNameLen; //length of fontName in TCHARS. 100a980269c2498836101146adc729ef780fb89824ebungeman@google.com if (0 == (fontNameLen = GetTextFace(deviceContext, 0, NULL))) { 101a980269c2498836101146adc729ef780fb89824ebungeman@google.com call_ensure_accessible(lf); 102a980269c2498836101146adc729ef780fb89824ebungeman@google.com if (0 == (fontNameLen = GetTextFace(deviceContext, 0, NULL))) { 103a980269c2498836101146adc729ef780fb89824ebungeman@google.com fontNameLen = 0; 104a980269c2498836101146adc729ef780fb89824ebungeman@google.com } 105a980269c2498836101146adc729ef780fb89824ebungeman@google.com } 106a980269c2498836101146adc729ef780fb89824ebungeman@google.com 107a980269c2498836101146adc729ef780fb89824ebungeman@google.com SkAutoSTArray<LF_FULLFACESIZE, TCHAR> fontName(fontNameLen+1); 108a980269c2498836101146adc729ef780fb89824ebungeman@google.com if (0 == GetTextFace(deviceContext, fontNameLen, fontName.get())) { 109a980269c2498836101146adc729ef780fb89824ebungeman@google.com call_ensure_accessible(lf); 110a980269c2498836101146adc729ef780fb89824ebungeman@google.com if (0 == GetTextFace(deviceContext, fontNameLen, fontName.get())) { 111a980269c2498836101146adc729ef780fb89824ebungeman@google.com fontName[0] = 0; 112a980269c2498836101146adc729ef780fb89824ebungeman@google.com } 113a980269c2498836101146adc729ef780fb89824ebungeman@google.com } 114a980269c2498836101146adc729ef780fb89824ebungeman@google.com 115a980269c2498836101146adc729ef780fb89824ebungeman@google.com tchar_to_skstring(fontName.get(), familyName); 116a980269c2498836101146adc729ef780fb89824ebungeman@google.com} 117a980269c2498836101146adc729ef780fb89824ebungeman@google.com 118ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic void make_canonical(LOGFONT* lf) { 11953cbb0baac09e60e7633c15301a29a83afb1a8debungeman@google.com lf->lfHeight = -64; 12059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf->lfQuality = CLEARTYPE_QUALITY;//PROOF_QUALITY; 12159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf->lfCharSet = DEFAULT_CHARSET; 12282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com// lf->lfClipPrecision = 64; 12359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com} 12459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 125a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungemanstatic SkFontStyle get_style(const LOGFONT& lf) { 126a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungeman return SkFontStyle(lf.lfWeight, 127a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungeman lf.lfWidth, 128a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungeman lf.lfItalic ? SkFontStyle::kItalic_Slant : SkFontStyle::kUpright_Slant); 129ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 130ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 131ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic inline FIXED SkFixedToFIXED(SkFixed x) { 132ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return *(FIXED*)(&x); 133ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 134a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.comstatic inline SkFixed SkFIXEDToFixed(FIXED x) { 135a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com return *(SkFixed*)(&x); 136a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com} 137ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 138ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic inline FIXED SkScalarToFIXED(SkScalar x) { 139ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkFixedToFIXED(SkScalarToFixed(x)); 140ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 141ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1424732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.comstatic inline SkScalar SkFIXEDToScalar(FIXED x) { 1434732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com return SkFixedToScalar(SkFIXEDToFixed(x)); 1444732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com} 1454732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com 1467bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.comstatic unsigned calculateGlyphCount(HDC hdc, const LOGFONT& lf) { 1477bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com TEXTMETRIC textMetric; 1487bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com if (0 == GetTextMetrics(hdc, &textMetric)) { 1497bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com textMetric.tmPitchAndFamily = TMPF_VECTOR; 1507bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com call_ensure_accessible(lf); 1517bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com GetTextMetrics(hdc, &textMetric); 1527bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com } 1537bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 1547bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com if (!(textMetric.tmPitchAndFamily & TMPF_VECTOR)) { 1557bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com return textMetric.tmLastChar; 1567bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com } 1577bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 158ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // The 'maxp' table stores the number of glyphs at offset 4, in 2 bytes. 159ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com uint16_t glyphs; 1607bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com if (GDI_ERROR != GetFontData(hdc, SkOTTableMaximumProfile::TAG, 4, &glyphs, sizeof(glyphs))) { 161ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkEndian_SwapBE16(glyphs); 162ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1635aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org 164ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Binary search for glyph count. 165ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com static const MAT2 mat2 = {{0, 1}, {0, 0}, {0, 0}, {0, 1}}; 166ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int32_t max = SK_MaxU16 + 1; 167ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int32_t min = 0; 168ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com GLYPHMETRICS gm; 169ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com while (min < max) { 170ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int32_t mid = min + ((max - min) / 2); 171ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (GetGlyphOutlineW(hdc, mid, GGO_METRICS | GGO_GLYPH_INDEX, &gm, 0, 172ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com NULL, &mat2) == GDI_ERROR) { 173ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com max = mid; 174ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 175ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com min = mid + 1; 176ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 177ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 178ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(min == max); 179ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return min; 180ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 181ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1827bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.comstatic unsigned calculateUPEM(HDC hdc, const LOGFONT& lf) { 1837bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com TEXTMETRIC textMetric; 1847bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com if (0 == GetTextMetrics(hdc, &textMetric)) { 1857bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com textMetric.tmPitchAndFamily = TMPF_VECTOR; 1867bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com call_ensure_accessible(lf); 1877bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com GetTextMetrics(hdc, &textMetric); 1887bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com } 1897bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 1907bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com if (!(textMetric.tmPitchAndFamily & TMPF_VECTOR)) { 1917bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com return textMetric.tmMaxCharWidth; 1927bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com } 1937bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 1947bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com OUTLINETEXTMETRIC otm; 1957bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com unsigned int otmRet = GetOutlineTextMetrics(hdc, sizeof(otm), &otm); 1967bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com if (0 == otmRet) { 1977bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com call_ensure_accessible(lf); 1987bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com otmRet = GetOutlineTextMetrics(hdc, sizeof(otm), &otm); 1997bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com } 2007bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 2017bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com return (0 == otmRet) ? 0 : otm.otmEMSquare; 2027bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com} 2037bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 204ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comclass LogFontTypeface : public SkTypeface { 205ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.compublic: 206a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungeman LogFontTypeface(const SkFontStyle& style, const LOGFONT& lf, bool serializeAsStream) 207a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungeman : SkTypeface(style, SkTypefaceCache::NewFontID(), false) 208a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungeman , fLogFont(lf) 209a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungeman , fSerializeAsStream(serializeAsStream) 210a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungeman { 211cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com 212cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com // If the font has cubic outlines, it will not be rendered with ClearType. 213cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com HFONT font = CreateFontIndirect(&lf); 214cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com 215cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com HDC deviceContext = ::CreateCompatibleDC(NULL); 216cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com HFONT savefont = (HFONT)SelectObject(deviceContext, font); 217cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com 218cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com TEXTMETRIC textMetric; 219cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com if (0 == GetTextMetrics(deviceContext, &textMetric)) { 220055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com call_ensure_accessible(lf); 221cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com if (0 == GetTextMetrics(deviceContext, &textMetric)) { 222cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com textMetric.tmPitchAndFamily = TMPF_TRUETYPE; 223cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com } 224cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com } 225cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com if (deviceContext) { 226cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com ::SelectObject(deviceContext, savefont); 227cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com ::DeleteDC(deviceContext); 228cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com } 229cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com if (font) { 230cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com ::DeleteObject(font); 231cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com } 232cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com 233fe74765f0d302669ae49e68074492bdfe0ce6e6fbungeman@google.com // The fixed pitch bit is set if the font is *not* fixed pitch. 234fe74765f0d302669ae49e68074492bdfe0ce6e6fbungeman@google.com this->setIsFixedPitch((textMetric.tmPitchAndFamily & TMPF_FIXED_PITCH) == 0); 235fe74765f0d302669ae49e68074492bdfe0ce6e6fbungeman@google.com 236cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com // Used a logfont on a memory context, should never get a device font. 237cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com // Therefore all TMPF_DEVICE will be PostScript (cubic) fonts. 238cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com fCanBeLCD = !((textMetric.tmPitchAndFamily & TMPF_VECTOR) && 239cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com (textMetric.tmPitchAndFamily & TMPF_DEVICE)); 240cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com } 241ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 24259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LOGFONT fLogFont; 243e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com bool fSerializeAsStream; 244cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com bool fCanBeLCD; 245ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 24659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com static LogFontTypeface* Create(const LOGFONT& lf) { 247a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungeman return new LogFontTypeface(get_style(lf), lf, false); 248ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 2490da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.com 250055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com static void EnsureAccessible(const SkTypeface* face) { 251055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com call_ensure_accessible(static_cast<const LogFontTypeface*>(face)->fLogFont); 252055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com } 253055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com 2540da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.comprotected: 25536352bf5e38f45a70ee4f4fc132a38048d38206dmtklein SkStreamAsset* onOpenStream(int* ttcIndex) const override; 25636352bf5e38f45a70ee4f4fc132a38048d38206dmtklein SkScalerContext* onCreateScalerContext(const SkDescriptor*) const override; 25736352bf5e38f45a70ee4f4fc132a38048d38206dmtklein void onFilterRec(SkScalerContextRec*) const override; 25839a9a5069b25aa8b9529118cfd0ece5f412fb56breed SkAdvancedTypefaceMetrics* onGetAdvancedTypefaceMetrics( 25939a9a5069b25aa8b9529118cfd0ece5f412fb56breed PerGlyphInfo, const uint32_t*, uint32_t) const override; 26036352bf5e38f45a70ee4f4fc132a38048d38206dmtklein void onGetFontDescriptor(SkFontDescriptor*, bool*) const override; 2613c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com virtual int onCharsToGlyphs(const void* chars, Encoding encoding, 26236352bf5e38f45a70ee4f4fc132a38048d38206dmtklein uint16_t glyphs[], int glyphCount) const override; 26336352bf5e38f45a70ee4f4fc132a38048d38206dmtklein int onCountGlyphs() const override; 26436352bf5e38f45a70ee4f4fc132a38048d38206dmtklein int onGetUPEM() const override; 26536352bf5e38f45a70ee4f4fc132a38048d38206dmtklein void onGetFamilyName(SkString* familyName) const override; 26636352bf5e38f45a70ee4f4fc132a38048d38206dmtklein SkTypeface::LocalizedStrings* onCreateFamilyNameIterator() const override; 26736352bf5e38f45a70ee4f4fc132a38048d38206dmtklein int onGetTableTags(SkFontTableTag tags[]) const override; 268b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com virtual size_t onGetTableData(SkFontTableTag, size_t offset, 26936352bf5e38f45a70ee4f4fc132a38048d38206dmtklein size_t length, void* data) const override; 270ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com}; 271ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 272a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comclass FontMemResourceTypeface : public LogFontTypeface { 273a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.compublic: 274a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com /** 275a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com * The created FontMemResourceTypeface takes ownership of fontMemResource. 276a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 277a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com static FontMemResourceTypeface* Create(const LOGFONT& lf, HANDLE fontMemResource) { 278a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungeman return new FontMemResourceTypeface(get_style(lf), lf, fontMemResource); 279a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 280a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 281a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comprotected: 28236352bf5e38f45a70ee4f4fc132a38048d38206dmtklein void weak_dispose() const override { 283a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com RemoveFontMemResourceEx(fFontMemResource); 284a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com //SkTypefaceCache::Remove(this); 285a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com INHERITED::weak_dispose(); 286a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 287a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 288a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comprivate: 28972cf4fcafa54cfa04c5ec7cb8eaa3acb144712ddbungeman@google.com /** 29072cf4fcafa54cfa04c5ec7cb8eaa3acb144712ddbungeman@google.com * Takes ownership of fontMemResource. 29172cf4fcafa54cfa04c5ec7cb8eaa3acb144712ddbungeman@google.com */ 292a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungeman FontMemResourceTypeface(const SkFontStyle& style, const LOGFONT& lf, HANDLE fontMemResource) 293a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungeman : LogFontTypeface(style, lf, true), fFontMemResource(fontMemResource) 294a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungeman { } 29572cf4fcafa54cfa04c5ec7cb8eaa3acb144712ddbungeman@google.com 29672cf4fcafa54cfa04c5ec7cb8eaa3acb144712ddbungeman@google.com HANDLE fFontMemResource; 29772cf4fcafa54cfa04c5ec7cb8eaa3acb144712ddbungeman@google.com 298a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com typedef LogFontTypeface INHERITED; 299a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com}; 300a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 301ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic const LOGFONT& get_default_font() { 302ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com static LOGFONT gDefaultFont; 303ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return gDefaultFont; 304ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 305ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 306a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungemanstatic bool FindByLogFont(SkTypeface* face, const SkFontStyle& requestedStyle, void* ctx) { 307a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com LogFontTypeface* lface = static_cast<LogFontTypeface*>(face); 30859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com const LOGFONT* lf = reinterpret_cast<const LOGFONT*>(ctx); 309ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 310a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return lface && 311a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com get_style(lface->fLogFont) == requestedStyle && 31259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com !memcmp(&lface->fLogFont, lf, sizeof(LOGFONT)); 31359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com} 31459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 31559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com/** 31659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com * This guy is public. It first searches the cache, and if a match is not found, 31759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com * it creates a new face. 31859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com */ 31959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.comSkTypeface* SkCreateTypefaceFromLOGFONT(const LOGFONT& origLF) { 32059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LOGFONT lf = origLF; 32159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com make_canonical(&lf); 322ee51d1a6e43615ae640410013c36d2d9873e6aa5bungeman@google.com SkTypeface* face = SkTypefaceCache::FindByProcAndRef(FindByLogFont, &lf); 323ee51d1a6e43615ae640410013c36d2d9873e6aa5bungeman@google.com if (NULL == face) { 32459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com face = LogFontTypeface::Create(lf); 32590d812b77ab025d5fd01dab904287f5c5bf56228bungeman@google.com SkTypefaceCache::Add(face, get_style(lf)); 32659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } 32759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com return face; 328ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 329ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 330db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com/** 331a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com * The created SkTypeface takes ownership of fontMemResource. 332a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 333a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comSkTypeface* SkCreateFontMemResourceTypefaceFromLOGFONT(const LOGFONT& origLF, HANDLE fontMemResource) { 334a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com LOGFONT lf = origLF; 335a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com make_canonical(&lf); 33660b6e9dbbc492f987a5b887dff60aec107ab70d0mtklein // We'll never get a cache hit, so no point in putting this in SkTypefaceCache. 33760b6e9dbbc492f987a5b887dff60aec107ab70d0mtklein return FontMemResourceTypeface::Create(lf, fontMemResource); 338a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com} 339a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 340a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 341db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com * This guy is public 342db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com */ 343db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.comvoid SkLOGFONTFromTypeface(const SkTypeface* face, LOGFONT* lf) { 344db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com if (NULL == face) { 345db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com *lf = get_default_font(); 346db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com } else { 347a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com *lf = static_cast<const LogFontTypeface*>(face)->fLogFont; 348db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com } 349db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com} 350db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com 3516744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// Construct Glyph to Unicode table. 3526744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// Unicode code points that require conjugate pairs in utf16 are not 3536744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// supported. 3546744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// TODO(arthurhsu): Add support for conjugate pairs. It looks like that may 3556744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// require parsing the TTF cmap table (platform 4, encoding 12) directly instead 3566744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// of calling GetFontUnicodeRange(). 3576744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.orgstatic void populate_glyph_to_unicode(HDC fontHdc, const unsigned glyphCount, 3586744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkTDArray<SkUnichar>* glyphToUnicode) { 3596744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org DWORD glyphSetBufferSize = GetFontUnicodeRanges(fontHdc, NULL); 3606744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org if (!glyphSetBufferSize) { 3616744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org return; 3626744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 3636744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 3646744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkAutoTDeleteArray<BYTE> glyphSetBuffer(new BYTE[glyphSetBufferSize]); 3656744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org GLYPHSET* glyphSet = 3666744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org reinterpret_cast<LPGLYPHSET>(glyphSetBuffer.get()); 3676744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org if (GetFontUnicodeRanges(fontHdc, glyphSet) != glyphSetBufferSize) { 3686744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org return; 3696744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 3706744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 3716744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org glyphToUnicode->setCount(glyphCount); 3726744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org memset(glyphToUnicode->begin(), 0, glyphCount * sizeof(SkUnichar)); 3736744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org for (DWORD i = 0; i < glyphSet->cRanges; ++i) { 3746744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // There is no guarantee that within a Unicode range, the corresponding 3756744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // glyph id in a font file are continuous. So, even if we have ranges, 3766744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // we can't just use the first and last entry of the range to compute 3776744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // result. We need to enumerate them one by one. 3786744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org int count = glyphSet->ranges[i].cGlyphs; 3796744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkAutoTArray<WCHAR> chars(count + 1); 3806744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org chars[count] = 0; // termintate string 3816744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkAutoTArray<WORD> glyph(count); 3826744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org for (USHORT j = 0; j < count; ++j) { 3836744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org chars[j] = glyphSet->ranges[i].wcLow + j; 3846744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 3856744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org GetGlyphIndicesW(fontHdc, chars.get(), count, glyph.get(), 3866744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org GGI_MARK_NONEXISTING_GLYPHS); 3876744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // If the glyph ID is valid, and the glyph is not mapped, then we will 3886744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // fill in the char id into the vector. If the glyph is mapped already, 3896744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // skip it. 3906744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // TODO(arthurhsu): better improve this. e.g. Get all used char ids from 3916744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // font cache, then generate this mapping table from there. It's 3926744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // unlikely to have collisions since glyph reuse happens mostly for 3936744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // different Unicode pages. 3946744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org for (USHORT j = 0; j < count; ++j) { 3956744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org if (glyph[j] != 0xffff && glyph[j] < glyphCount && 3966744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org (*glyphToUnicode)[glyph[j]] == 0) { 3976744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org (*glyphToUnicode)[glyph[j]] = chars[j]; 3986744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 3996744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 4006744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 4016744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org} 4026744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 40399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com////////////////////////////////////////////////////////////////////////////////////// 40499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 40599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.comstatic int alignTo32(int n) { 40699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com return (n + 31) & ~31; 40799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com} 40899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 40999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.comstruct MyBitmapInfo : public BITMAPINFO { 41099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com RGBQUAD fMoreSpaceForColors[1]; 41199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com}; 41299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 41399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.comclass HDCOffscreen { 41499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.compublic: 41599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HDCOffscreen() { 41699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fFont = 0; 41799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fDC = 0; 41899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fBM = 0; 41999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fBits = NULL; 42099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fWidth = fHeight = 0; 42199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fIsBW = false; 42299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 42399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 42499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com ~HDCOffscreen() { 42599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (fDC) { 42699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com DeleteDC(fDC); 42799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 42899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (fBM) { 42999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com DeleteObject(fBM); 43099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 43199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 43299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 43399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com void init(HFONT font, const XFORM& xform) { 43499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fFont = font; 43599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fXform = xform; 43699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 43799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 43897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const void* draw(const SkGlyph&, bool isBW, size_t* srcRBPtr); 43999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 44099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.comprivate: 44199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HDC fDC; 44299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HBITMAP fBM; 44399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HFONT fFont; 44499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com XFORM fXform; 44599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com void* fBits; // points into fBM 44699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com int fWidth; 44799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com int fHeight; 44899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com bool fIsBW; 44999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com}; 45099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 451754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.comconst void* HDCOffscreen::draw(const SkGlyph& glyph, bool isBW, 45297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com size_t* srcRBPtr) { 45384e22d847fc84727bc220947162363ee1fe068fcreed@google.com // Can we share the scalercontext's fDDC, so we don't need to create 45484e22d847fc84727bc220947162363ee1fe068fcreed@google.com // a separate fDC here? 45599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (0 == fDC) { 45699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fDC = CreateCompatibleDC(0); 45799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (0 == fDC) { 45899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com return NULL; 45999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 46099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SetGraphicsMode(fDC, GM_ADVANCED); 46199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SetBkMode(fDC, TRANSPARENT); 46299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SetTextAlign(fDC, TA_LEFT | TA_BASELINE); 46399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SelectObject(fDC, fFont); 46497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com 46597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com COLORREF color = 0x00FFFFFF; 466b58a639b2fbe919489654bb506efdb024a308a8ebsalomon@google.com SkDEBUGCODE(COLORREF prev =) SetTextColor(fDC, color); 46797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com SkASSERT(prev != CLR_INVALID); 46899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 46999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 47099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (fBM && (fIsBW != isBW || fWidth < glyph.fWidth || fHeight < glyph.fHeight)) { 47199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com DeleteObject(fBM); 47299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fBM = 0; 47399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 474754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com fIsBW = isBW; 47599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 47699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fWidth = SkMax32(fWidth, glyph.fWidth); 47799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fHeight = SkMax32(fHeight, glyph.fHeight); 47899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 47999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com int biWidth = isBW ? alignTo32(fWidth) : fWidth; 48099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 48199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (0 == fBM) { 48299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com MyBitmapInfo info; 48399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com sk_bzero(&info, sizeof(info)); 48499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (isBW) { 48599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com RGBQUAD blackQuad = { 0, 0, 0, 0 }; 48699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com RGBQUAD whiteQuad = { 0xFF, 0xFF, 0xFF, 0 }; 48799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiColors[0] = blackQuad; 48899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiColors[1] = whiteQuad; 48999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 49099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biSize = sizeof(info.bmiHeader); 49199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biWidth = biWidth; 49299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biHeight = fHeight; 49399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biPlanes = 1; 49499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biBitCount = isBW ? 1 : 32; 49599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biCompression = BI_RGB; 49699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (isBW) { 49799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biClrUsed = 2; 49899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 49999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fBM = CreateDIBSection(fDC, &info, DIB_RGB_COLORS, &fBits, 0, 0); 50099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (0 == fBM) { 50199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com return NULL; 50299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 50399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SelectObject(fDC, fBM); 50499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 50599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 50699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com // erase 50799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com size_t srcRB = isBW ? (biWidth >> 3) : (fWidth << 2); 50899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com size_t size = fHeight * srcRB; 50997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com memset(fBits, 0, size); 51099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 51199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com XFORM xform = fXform; 51299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com xform.eDx = (float)-glyph.fLeft; 51399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com xform.eDy = (float)-glyph.fTop; 51499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SetWorldTransform(fDC, &xform); 51599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 51699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com uint16_t glyphID = glyph.getGlyphID(); 51739698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com BOOL ret = ExtTextOutW(fDC, 0, 0, ETO_GLYPH_INDEX, NULL, reinterpret_cast<LPCWSTR>(&glyphID), 1, NULL); 51899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com GdiFlush(); 51939698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (0 == ret) { 52039698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com return NULL; 52139698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 52299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com *srcRBPtr = srcRB; 52399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com // offset to the start of the image 52499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com return (const char*)fBits + (fHeight - glyph.fHeight) * srcRB; 52599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com} 52699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 527b8a5c618d2e18d71707ae4dcafbe5153d7ff427freed@google.com////////////////////////////////////////////////////////////////////////////// 5280abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#define BUFFERSIZE (1 << 13) 52959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 53030ddd615c447fed73286151b463af20d309c85f1reed@google.comclass SkScalerContext_GDI : public SkScalerContext { 531ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.compublic: 53230ddd615c447fed73286151b463af20d309c85f1reed@google.com SkScalerContext_GDI(SkTypeface*, const SkDescriptor* desc); 53330ddd615c447fed73286151b463af20d309c85f1reed@google.com virtual ~SkScalerContext_GDI(); 534ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 53584e22d847fc84727bc220947162363ee1fe068fcreed@google.com // Returns true if the constructor was able to complete all of its 53684e22d847fc84727bc220947162363ee1fe068fcreed@google.com // initializations (which may include calling GDI). 53784e22d847fc84727bc220947162363ee1fe068fcreed@google.com bool isValid() const; 53884e22d847fc84727bc220947162363ee1fe068fcreed@google.com 539ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comprotected: 54036352bf5e38f45a70ee4f4fc132a38048d38206dmtklein unsigned generateGlyphCount() override; 54136352bf5e38f45a70ee4f4fc132a38048d38206dmtklein uint16_t generateCharToGlyph(SkUnichar uni) override; 54236352bf5e38f45a70ee4f4fc132a38048d38206dmtklein void generateAdvance(SkGlyph* glyph) override; 54336352bf5e38f45a70ee4f4fc132a38048d38206dmtklein void generateMetrics(SkGlyph* glyph) override; 54436352bf5e38f45a70ee4f4fc132a38048d38206dmtklein void generateImage(const SkGlyph& glyph) override; 54536352bf5e38f45a70ee4f4fc132a38048d38206dmtklein void generatePath(const SkGlyph& glyph, SkPath* path) override; 54636352bf5e38f45a70ee4f4fc132a38048d38206dmtklein void generateFontMetrics(SkPaint::FontMetrics*) override; 54799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 548ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comprivate: 5490abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com DWORD getGDIGlyphPath(const SkGlyph& glyph, UINT flags, 5500abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkAutoSTMalloc<BUFFERSIZE, uint8_t>* glyphbuf); 5510abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 55299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HDCOffscreen fOffscreen; 5530abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com /** fGsA is the non-rotational part of total matrix without the text height scale. 5540abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com * Used to find the magnitude of advances. 5550abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com */ 5560abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com MAT2 fGsA; 5576a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com /** The total matrix without the textSize. */ 558ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com MAT2 fMat22; 5596a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com /** Scales font to EM size. */ 5606a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com MAT2 fHighResMat22; 561ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HDC fDDC; 562ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT fSavefont; 563ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT fFont; 564ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SCRIPT_CACHE fSC; 565ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int fGlyphCount; 5661dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 5676a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com /** The total matrix which also removes EM scale. */ 5681dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com SkMatrix fHiResMatrix; 5690abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com /** fG_inv is the inverse of the rotational part of the total matrix. 5700abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com * Used to set the direction of advances. 5710abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com */ 5720abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkMatrix fG_inv; 573a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com enum Type { 5744732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com kTrueType_Type, kBitmap_Type, kLine_Type 575a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } fType; 576a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com TEXTMETRIC fTM; 577ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com}; 578ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 579ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic FIXED float2FIXED(float x) { 580ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkFixedToFIXED(SkFloatToFixed(x)); 581ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 582ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 58382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.comstatic BYTE compute_quality(const SkScalerContext::Rec& rec) { 58482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com switch (rec.fMaskFormat) { 58582a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com case SkMask::kBW_Format: 58682a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com return NONANTIALIASED_QUALITY; 58782a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com case SkMask::kLCD16_Format: 58882a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com return CLEARTYPE_QUALITY; 58982a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com default: 5908351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com if (rec.fFlags & SkScalerContext::kGenA8FromLCD_Flag) { 5918351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com return CLEARTYPE_QUALITY; 5928351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com } else { 5938351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com return ANTIALIASED_QUALITY; 5948351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com } 59582a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com } 59682a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com} 59782a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 59830ddd615c447fed73286151b463af20d309c85f1reed@google.comSkScalerContext_GDI::SkScalerContext_GDI(SkTypeface* rawTypeface, 5990da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.com const SkDescriptor* desc) 600055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com : SkScalerContext(rawTypeface, desc) 601055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com , fDDC(0) 602055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com , fSavefont(0) 60384e22d847fc84727bc220947162363ee1fe068fcreed@google.com , fFont(0) 604055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com , fSC(0) 60505a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com , fGlyphCount(-1) 60605a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com{ 607055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com LogFontTypeface* typeface = reinterpret_cast<LogFontTypeface*>(rawTypeface); 608055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com 609ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fDDC = ::CreateCompatibleDC(NULL); 61084e22d847fc84727bc220947162363ee1fe068fcreed@google.com if (!fDDC) { 61184e22d847fc84727bc220947162363ee1fe068fcreed@google.com return; 61284e22d847fc84727bc220947162363ee1fe068fcreed@google.com } 6131dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com SetGraphicsMode(fDDC, GM_ADVANCED); 614ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SetBkMode(fDDC, TRANSPARENT); 61527e21fe577211c1c40cbf40d0385b02c69d04522skia.committer@gmail.com 6166f94076da504a9e292c7f6173b039d2692d47c51bungeman // When GDI hinting, remove the entire Y scale from sA and GsA. (Prevents 'linear' metrics.) 6176f94076da504a9e292c7f6173b039d2692d47c51bungeman // When not hinting, remove only the integer Y scale from sA and GsA. (Applied by GDI.) 6185f14c5e038a16c80d50c2f87ae7c8775f977456cbungeman SkScalerContextRec::PreMatrixScale scaleConstraints = 6195f14c5e038a16c80d50c2f87ae7c8775f977456cbungeman (fRec.getHinting() == SkPaint::kNo_Hinting || fRec.getHinting() == SkPaint::kSlight_Hinting) 6205f14c5e038a16c80d50c2f87ae7c8775f977456cbungeman ? SkScalerContextRec::kVerticalInteger_PreMatrixScale 6215f14c5e038a16c80d50c2f87ae7c8775f977456cbungeman : SkScalerContextRec::kVertical_PreMatrixScale; 6225f14c5e038a16c80d50c2f87ae7c8775f977456cbungeman SkVector scale; 6235f14c5e038a16c80d50c2f87ae7c8775f977456cbungeman SkMatrix sA; 6245f14c5e038a16c80d50c2f87ae7c8775f977456cbungeman SkMatrix GsA; 6255f14c5e038a16c80d50c2f87ae7c8775f977456cbungeman SkMatrix A; 6265f14c5e038a16c80d50c2f87ae7c8775f977456cbungeman fRec.computeMatrices(scaleConstraints, &scale, &sA, &GsA, &fG_inv, &A); 6270abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 6280abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fGsA.eM11 = SkScalarToFIXED(GsA.get(SkMatrix::kMScaleX)); 6290abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fGsA.eM12 = SkScalarToFIXED(-GsA.get(SkMatrix::kMSkewY)); // This should be ~0. 6300abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fGsA.eM21 = SkScalarToFIXED(-GsA.get(SkMatrix::kMSkewX)); 6310abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fGsA.eM22 = SkScalarToFIXED(GsA.get(SkMatrix::kMScaleY)); 6320abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 6336f94076da504a9e292c7f6173b039d2692d47c51bungeman // When not hinting, scale was computed with kVerticalInteger, so is already an integer. 6346f94076da504a9e292c7f6173b039d2692d47c51bungeman // The sA and GsA transforms will be used to create 'linear' metrics. 6356f94076da504a9e292c7f6173b039d2692d47c51bungeman 6366f94076da504a9e292c7f6173b039d2692d47c51bungeman // When hinting, scale was computed with kVertical, stating that our port can handle 6376f94076da504a9e292c7f6173b039d2692d47c51bungeman // non-integer scales. This is done so that sA and GsA are computed without any 'residual' 6386f94076da504a9e292c7f6173b039d2692d47c51bungeman // scale in them, preventing 'linear' metrics. However, GDI cannot actually handle non-integer 6396f94076da504a9e292c7f6173b039d2692d47c51bungeman // scales so we need to round in this case. This is fine, since all of the scale has been 6406f94076da504a9e292c7f6173b039d2692d47c51bungeman // removed from sA and GsA, so GDI will be handling the scale completely. 6416f94076da504a9e292c7f6173b039d2692d47c51bungeman SkScalar gdiTextSize = SkScalarRoundToScalar(scale.fY); 6426f94076da504a9e292c7f6173b039d2692d47c51bungeman 6436f94076da504a9e292c7f6173b039d2692d47c51bungeman // GDI will not accept a size of zero, so round the range [0, 1] to 1. 6446f94076da504a9e292c7f6173b039d2692d47c51bungeman // If the size was non-zero, the scale factors will also be non-zero and 1px tall text is drawn. 6456f94076da504a9e292c7f6173b039d2692d47c51bungeman // If the size actually was zero, the scale factors will also be zero, so GDI will draw nothing. 6465f14c5e038a16c80d50c2f87ae7c8775f977456cbungeman if (gdiTextSize == 0) { 6475f14c5e038a16c80d50c2f87ae7c8775f977456cbungeman gdiTextSize = SK_Scalar1; 6485f14c5e038a16c80d50c2f87ae7c8775f977456cbungeman } 649ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 650055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com LOGFONT lf = typeface->fLogFont; 65111ba3199f3edc7883ada4fd941d231f8f4883720bungeman@google.com lf.lfHeight = -SkScalarTruncToInt(gdiTextSize); 65282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com lf.lfQuality = compute_quality(fRec); 653ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fFont = CreateFontIndirect(&lf); 65484e22d847fc84727bc220947162363ee1fe068fcreed@google.com if (!fFont) { 65584e22d847fc84727bc220947162363ee1fe068fcreed@google.com return; 65684e22d847fc84727bc220947162363ee1fe068fcreed@google.com } 6571dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 658ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fSavefont = (HFONT)SelectObject(fDDC, fFont); 659a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 660a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (0 == GetTextMetrics(fDDC, &fTM)) { 661055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com call_ensure_accessible(lf); 662a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (0 == GetTextMetrics(fDDC, &fTM)) { 663a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fTM.tmPitchAndFamily = TMPF_TRUETYPE; 664a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 665a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 66690b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com 667d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com XFORM xform; 66890b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com if (fTM.tmPitchAndFamily & TMPF_VECTOR) { 6694732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com // Used a logfont on a memory context, should never get a device font. 6704732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com // Therefore all TMPF_DEVICE will be PostScript fonts. 6714732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com 6724732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com // If TMPF_VECTOR is set, one of TMPF_TRUETYPE or TMPF_DEVICE means that 6734732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com // we have an outline font. Otherwise we have a vector FON, which is 6744732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com // scalable, but not an outline font. 6754732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com // This was determined by testing with Type1 PFM/PFB and 6764732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com // OpenTypeCFF OTF, as well as looking at Wine bugs and sources. 6774732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com if (fTM.tmPitchAndFamily & (TMPF_TRUETYPE | TMPF_DEVICE)) { 6784732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com // Truetype or PostScript. 6794732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com fType = SkScalerContext_GDI::kTrueType_Type; 6804732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com } else { 6814732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com // Stroked FON. 6824732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com fType = SkScalerContext_GDI::kLine_Type; 6834732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com } 684a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 685d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // fPost2x2 is column-major, left handed (y down). 686d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // XFORM 2x2 is row-major, left handed (y down). 6870abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com xform.eM11 = SkScalarToFloat(sA.get(SkMatrix::kMScaleX)); 6880abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com xform.eM12 = SkScalarToFloat(sA.get(SkMatrix::kMSkewY)); 6890abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com xform.eM21 = SkScalarToFloat(sA.get(SkMatrix::kMSkewX)); 6900abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com xform.eM22 = SkScalarToFloat(sA.get(SkMatrix::kMScaleY)); 691d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eDx = 0; 692d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eDy = 0; 693d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com 694d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // MAT2 is row major, right handed (y up). 695d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM11 = float2FIXED(xform.eM11); 696d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM12 = float2FIXED(-xform.eM12); 697d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM21 = float2FIXED(-xform.eM21); 698d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM22 = float2FIXED(xform.eM22); 699a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 700a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (needToRenderWithSkia(fRec)) { 701a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com this->forceGenerateImageFromPath(); 702a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 703a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 70411ba3199f3edc7883ada4fd941d231f8f4883720bungeman@google.com // Create a hires matrix if we need linear metrics. 7050abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (this->isSubpixel()) { 7060abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com OUTLINETEXTMETRIC otm; 7070abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com UINT success = GetOutlineTextMetrics(fDDC, sizeof(otm), &otm); 7080abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (0 == success) { 7090abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com call_ensure_accessible(lf); 7100abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com success = GetOutlineTextMetrics(fDDC, sizeof(otm), &otm); 7110abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 7120abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (0 != success) { 71311ba3199f3edc7883ada4fd941d231f8f4883720bungeman@google.com SkScalar upem = SkIntToScalar(otm.otmEMSquare); 7146a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com 71511ba3199f3edc7883ada4fd941d231f8f4883720bungeman@google.com SkScalar gdiTextSizeToEMScale = upem / gdiTextSize; 71611ba3199f3edc7883ada4fd941d231f8f4883720bungeman@google.com fHighResMat22.eM11 = float2FIXED(gdiTextSizeToEMScale); 7176a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com fHighResMat22.eM12 = float2FIXED(0); 7186a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com fHighResMat22.eM21 = float2FIXED(0); 71911ba3199f3edc7883ada4fd941d231f8f4883720bungeman@google.com fHighResMat22.eM22 = float2FIXED(gdiTextSizeToEMScale); 7206a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com 72111ba3199f3edc7883ada4fd941d231f8f4883720bungeman@google.com SkScalar removeEMScale = SkScalarInvert(upem); 7226a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com fHiResMatrix = A; 72311ba3199f3edc7883ada4fd941d231f8f4883720bungeman@google.com fHiResMatrix.preScale(removeEMScale, removeEMScale); 7240abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 7250abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 7260abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 727a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } else { 728a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com // Assume bitmap 72930ddd615c447fed73286151b463af20d309c85f1reed@google.com fType = SkScalerContext_GDI::kBitmap_Type; 730a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 731d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM11 = 1.0f; 732d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM12 = 0.0f; 733d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM21 = 0.0f; 734d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM22 = 1.0f; 735d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eDx = 0.0f; 736d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eDy = 0.0f; 737a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 738d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // fPost2x2 is column-major, left handed (y down). 739d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // MAT2 is row major, right handed (y up). 740a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fMat22.eM11 = SkScalarToFIXED(fRec.fPost2x2[0][0]); 741d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM12 = SkScalarToFIXED(-fRec.fPost2x2[1][0]); 742a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fMat22.eM21 = SkScalarToFIXED(-fRec.fPost2x2[0][1]); 743d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM22 = SkScalarToFIXED(fRec.fPost2x2[1][1]); 744a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com } 74599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 746d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fOffscreen.init(fFont, xform); 747ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 748ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 74930ddd615c447fed73286151b463af20d309c85f1reed@google.comSkScalerContext_GDI::~SkScalerContext_GDI() { 750ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fDDC) { 751ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::SelectObject(fDDC, fSavefont); 752ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::DeleteDC(fDDC); 753ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 754ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fFont) { 755ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::DeleteObject(fFont); 756ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 757ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fSC) { 758ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::ScriptFreeCache(&fSC); 759ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 760ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 761ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 76230ddd615c447fed73286151b463af20d309c85f1reed@google.combool SkScalerContext_GDI::isValid() const { 76384e22d847fc84727bc220947162363ee1fe068fcreed@google.com return fDDC && fFont; 76484e22d847fc84727bc220947162363ee1fe068fcreed@google.com} 76584e22d847fc84727bc220947162363ee1fe068fcreed@google.com 76630ddd615c447fed73286151b463af20d309c85f1reed@google.comunsigned SkScalerContext_GDI::generateGlyphCount() { 767ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fGlyphCount < 0) { 7687bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com fGlyphCount = calculateGlyphCount( 7697bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com fDDC, static_cast<const LogFontTypeface*>(this->getTypeface())->fLogFont); 770ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 771ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return fGlyphCount; 772ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 773ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 77433346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.comuint16_t SkScalerContext_GDI::generateCharToGlyph(SkUnichar utf32) { 775ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com uint16_t index = 0; 77633346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com WCHAR utf16[2]; 777ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // TODO(ctguil): Support characters that generate more than one glyph. 77833346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com if (SkUTF16_FromUnichar(utf32, (uint16_t*)utf16) == 1) { 779ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Type1 fonts fail with uniscribe API. Use GetGlyphIndices for plane 0. 7807bd141dce43ea3405bc60c9c84e6f910b851b079skia.committer@gmail.com 78133346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com /** Real documentation for GetGlyphIndiciesW: 78233346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com * 78333346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com * When GGI_MARK_NONEXISTING_GLYPHS is not specified and a character does not map to a 78433346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com * glyph, then the 'default character's glyph is returned instead. The 'default character' 7854732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com * is available in fTM.tmDefaultChar. FON fonts have a default character, and there exists 7864732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com * a usDefaultChar in the 'OS/2' table, version 2 and later. If there is no 78733346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com * 'default character' specified by the font, then often the first character found is used. 78833346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com * 78933346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com * When GGI_MARK_NONEXISTING_GLYPHS is specified and a character does not map to a glyph, 79033346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com * then the glyph 0xFFFF is used. In Windows XP and earlier, Bitmap/Vector FON usually use 79133346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com * glyph 0x1F instead ('Terminal' appears to be special, returning 0xFFFF). 79233346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com * Type1 PFM/PFB, TT, OT TT, OT CFF all appear to use 0xFFFF, even on XP. 79333346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com */ 79433346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com DWORD result = GetGlyphIndicesW(fDDC, utf16, 1, &index, GGI_MARK_NONEXISTING_GLYPHS); 79533346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com if (result == GDI_ERROR 79633346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com || 0xFFFF == index 7974732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com || (0x1F == index && 7984732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com (fType == SkScalerContext_GDI::kBitmap_Type || 7994732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com fType == SkScalerContext_GDI::kLine_Type) 8004732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com /*&& winVer < Vista */) 8014732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com ) 80233346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com { 80333346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com index = 0; 80433346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com } 805ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 806ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Use uniscribe to detemine glyph index for non-BMP characters. 80727f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com static const int numWCHAR = 2; 80827f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com static const int maxItems = 2; 80927f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com // MSDN states that this can be NULL, but some things don't work then. 81027f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com SCRIPT_CONTROL sc = { 0 }; 81127f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com // Add extra item to SCRIPT_ITEM to work around a bug (now documented). 81227f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com // https://bugzilla.mozilla.org/show_bug.cgi?id=366643 81327f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com SCRIPT_ITEM si[maxItems + 1]; 81427f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com int numItems; 81527f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com HRZM(ScriptItemize(utf16, numWCHAR, maxItems, &sc, NULL, si, &numItems), 81627f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com "Could not itemize character."); 81727f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com 81827f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com // Sometimes ScriptShape cannot find a glyph for a non-BMP and returns 2 space glyphs. 81927f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com static const int maxGlyphs = 2; 82027f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com SCRIPT_VISATTR vsa[maxGlyphs]; 82127f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com WORD outGlyphs[maxGlyphs]; 82227f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com WORD logClust[numWCHAR]; 82327f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com int numGlyphs; 82427f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com HRZM(ScriptShape(fDDC, &fSC, utf16, numWCHAR, maxGlyphs, &si[0].a, 82527f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com outGlyphs, logClust, vsa, &numGlyphs), 82627f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com "Could not shape character."); 82727f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com if (1 == numGlyphs) { 82827f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com index = outGlyphs[0]; 82927f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com } 830ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 831ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return index; 832ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 833ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 83430ddd615c447fed73286151b463af20d309c85f1reed@google.comvoid SkScalerContext_GDI::generateAdvance(SkGlyph* glyph) { 835ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com this->generateMetrics(glyph); 836ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 837ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 83830ddd615c447fed73286151b463af20d309c85f1reed@google.comvoid SkScalerContext_GDI::generateMetrics(SkGlyph* glyph) { 839ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(fDDC); 840ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 8414732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com if (fType == SkScalerContext_GDI::kBitmap_Type || fType == SkScalerContext_GDI::kLine_Type) { 842a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com SIZE size; 8431b27704eba15be4e9d1997faac42038493a30be5djsollen WORD glyphs = glyph->getGlyphID(); 844a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (0 == GetTextExtentPointI(fDDC, &glyphs, 1, &size)) { 845a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fWidth = SkToS16(fTM.tmMaxCharWidth); 846a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } else { 847a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fWidth = SkToS16(size.cx); 848a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 849a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fHeight = SkToS16(size.cy); 850a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 851a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fTop = SkToS16(-fTM.tmAscent); 8524732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com // Bitmap FON cannot underhang, but vector FON may. 8534732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com // There appears no means of determining underhang of vector FON. 854a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fLeft = SkToS16(0); 855a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fAdvanceX = SkIntToFixed(glyph->fWidth); 856a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fAdvanceY = 0; 857a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 8584732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com // Vector FON will transform nicely, but bitmap FON do not. 8594732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com if (fType == SkScalerContext_GDI::kLine_Type) { 8604732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com SkRect bounds = SkRect::MakeXYWH(glyph->fLeft, glyph->fTop, 8614732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com glyph->fWidth, glyph->fHeight); 8624732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com SkMatrix m; 8634732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com m.setAll(SkFIXEDToScalar(fMat22.eM11), -SkFIXEDToScalar(fMat22.eM21), 0, 8644732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com -SkFIXEDToScalar(fMat22.eM12), SkFIXEDToScalar(fMat22.eM22), 0, 8653f43f8ab9cd3ba0ea83f5ae0659c21f101dfca7areed 0, 0, 1); 8664732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com m.mapRect(&bounds); 867d02cf2664d0e453a6ec57cddc7f09bfc07fd91dbreed bounds.roundOut(&bounds); 8684732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com glyph->fLeft = SkScalarTruncToInt(bounds.fLeft); 8694732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com glyph->fTop = SkScalarTruncToInt(bounds.fTop); 8704732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com glyph->fWidth = SkScalarTruncToInt(bounds.width()); 8714732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com glyph->fHeight = SkScalarTruncToInt(bounds.height()); 8724732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com } 8734732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com 874d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // Apply matrix to advance. 8754732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com glyph->fAdvanceY = SkFixedMul(-SkFIXEDToFixed(fMat22.eM12), glyph->fAdvanceX); 876a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fAdvanceX = SkFixedMul(SkFIXEDToFixed(fMat22.eM11), glyph->fAdvanceX); 877a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 878a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com return; 879a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 880a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 8811b27704eba15be4e9d1997faac42038493a30be5djsollen UINT glyphId = glyph->getGlyphID(); 882d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com 883ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com GLYPHMETRICS gm; 8841dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com sk_bzero(&gm, sizeof(gm)); 885ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 886d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com DWORD status = GetGlyphOutlineW(fDDC, glyphId, GGO_METRICS | GGO_GLYPH_INDEX, &gm, 0, NULL, &fMat22); 887d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (GDI_ERROR == status) { 888055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com LogFontTypeface::EnsureAccessible(this->getTypeface()); 889d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com status = GetGlyphOutlineW(fDDC, glyphId, GGO_METRICS | GGO_GLYPH_INDEX, &gm, 0, NULL, &fMat22); 890d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (GDI_ERROR == status) { 891d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->zeroMetrics(); 892d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com return; 893d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 89439698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 895ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 896d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com bool empty = false; 897d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // The black box is either the embedded bitmap size or the outline extent. 898d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // It is 1x1 if nothing is to be drawn, but will also be 1x1 if something very small 899d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // is to be drawn, like a '.'. We need to outset '.' but do not wish to outset ' '. 900d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (1 == gm.gmBlackBoxX && 1 == gm.gmBlackBoxY) { 901d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // If GetGlyphOutline with GGO_NATIVE returns 0, we know there was no outline. 902d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com DWORD bufferSize = GetGlyphOutlineW(fDDC, glyphId, GGO_NATIVE | GGO_GLYPH_INDEX, &gm, 0, NULL, &fMat22); 903d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com empty = (0 == bufferSize); 904d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 9051dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 906d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fTop = SkToS16(-gm.gmptGlyphOrigin.y); 907d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fLeft = SkToS16(gm.gmptGlyphOrigin.x); 908d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (empty) { 909d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fWidth = 0; 910d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fHeight = 0; 911ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 912d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // Outset, since the image may bleed out of the black box. 913d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // For embedded bitmaps the black box should be exact. 914d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // For outlines we need to outset by 1 in all directions for bleed. 915d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // For ClearType we need to outset by 2 for bleed. 916d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fWidth = gm.gmBlackBoxX + 4; 917d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fHeight = gm.gmBlackBoxY + 4; 918d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fTop -= 2; 919d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fLeft -= 2; 920d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 921d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fAdvanceX = SkIntToFixed(gm.gmCellIncX); 922d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fAdvanceY = SkIntToFixed(gm.gmCellIncY); 923d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fRsbDelta = 0; 924d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fLsbDelta = 0; 925d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com 9266a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com if (this->isSubpixel()) { 927d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com sk_bzero(&gm, sizeof(gm)); 9286a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com status = GetGlyphOutlineW(fDDC, glyphId, GGO_METRICS | GGO_GLYPH_INDEX, &gm, 0, NULL, &fHighResMat22); 929d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (GDI_ERROR != status) { 930d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkPoint advance; 931d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fHiResMatrix.mapXY(SkIntToScalar(gm.gmCellIncX), SkIntToScalar(gm.gmCellIncY), &advance); 932d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fAdvanceX = SkScalarToFixed(advance.fX); 933d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fAdvanceY = SkScalarToFixed(advance.fY); 934d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 9350abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } else if (!isAxisAligned(this->fRec)) { 9360abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com status = GetGlyphOutlineW(fDDC, glyphId, GGO_METRICS | GGO_GLYPH_INDEX, &gm, 0, NULL, &fGsA); 9370abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (GDI_ERROR != status) { 9380abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkPoint advance; 9390abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fG_inv.mapXY(SkIntToScalar(gm.gmCellIncX), SkIntToScalar(gm.gmCellIncY), &advance); 9400abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com glyph->fAdvanceX = SkScalarToFixed(advance.fX); 9410abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com glyph->fAdvanceY = SkScalarToFixed(advance.fY); 9420abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 943ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 944ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 945ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 9466a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.comstatic const MAT2 gMat2Identity = {{0, 1}, {0, 0}, {0, 0}, {0, 1}}; 947410780677af260e32948b02c0725ef6ad761260cbungemanvoid SkScalerContext_GDI::generateFontMetrics(SkPaint::FontMetrics* metrics) { 948410780677af260e32948b02c0725ef6ad761260cbungeman if (NULL == metrics) { 949410780677af260e32948b02c0725ef6ad761260cbungeman return; 95060af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com } 951410780677af260e32948b02c0725ef6ad761260cbungeman sk_bzero(metrics, sizeof(*metrics)); 952ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 953ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(fDDC); 954ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 955e9d831957602e3fa46fc4b609ae6d2da46654915bungeman@google.com#ifndef SK_GDI_ALWAYS_USE_TEXTMETRICS_FOR_FONT_METRICS 9564732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com if (fType == SkScalerContext_GDI::kBitmap_Type || fType == SkScalerContext_GDI::kLine_Type) { 957e9d831957602e3fa46fc4b609ae6d2da46654915bungeman@google.com#endif 958410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fTop = SkIntToScalar(-fTM.tmAscent); 959410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fAscent = SkIntToScalar(-fTM.tmAscent); 960410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fDescent = SkIntToScalar(fTM.tmDescent); 961410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fBottom = SkIntToScalar(fTM.tmDescent); 962410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fLeading = SkIntToScalar(fTM.tmExternalLeading); 963410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fAvgCharWidth = SkIntToScalar(fTM.tmAveCharWidth); 964410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fMaxCharWidth = SkIntToScalar(fTM.tmMaxCharWidth); 965410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fXMin = 0; 966410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fXMax = metrics->fMaxCharWidth; 967410780677af260e32948b02c0725ef6ad761260cbungeman //metrics->fXHeight = 0; 968e9d831957602e3fa46fc4b609ae6d2da46654915bungeman@google.com#ifndef SK_GDI_ALWAYS_USE_TEXTMETRICS_FOR_FONT_METRICS 969a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com return; 970a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 971e9d831957602e3fa46fc4b609ae6d2da46654915bungeman@google.com#endif 972a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 973ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com OUTLINETEXTMETRIC otm; 974ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 975ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com uint32_t ret = GetOutlineTextMetrics(fDDC, sizeof(otm), &otm); 9760abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (0 == ret) { 977055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com LogFontTypeface::EnsureAccessible(this->getTypeface()); 97839698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com ret = GetOutlineTextMetrics(fDDC, sizeof(otm), &otm); 97939698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 9800abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (0 == ret) { 981a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com return; 982ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 983ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 984e9d831957602e3fa46fc4b609ae6d2da46654915bungeman@google.com#ifndef SK_GDI_ALWAYS_USE_TEXTMETRICS_FOR_FONT_METRICS 985410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fTop = SkIntToScalar(-otm.otmrcFontBox.top); 986410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fAscent = SkIntToScalar(-otm.otmAscent); 987410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fDescent = SkIntToScalar(-otm.otmDescent); 988410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fBottom = SkIntToScalar(-otm.otmrcFontBox.bottom); 989410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fLeading = SkIntToScalar(otm.otmLineGap); 990410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fAvgCharWidth = SkIntToScalar(otm.otmTextMetrics.tmAveCharWidth); 991410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fMaxCharWidth = SkIntToScalar(otm.otmTextMetrics.tmMaxCharWidth); 992410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fXMin = SkIntToScalar(otm.otmrcFontBox.left); 993410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fXMax = SkIntToScalar(otm.otmrcFontBox.right); 994d3031aa5ae90b796593a04c0da062024198e4769commit-bot@chromium.org#endif 995410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fUnderlineThickness = SkIntToScalar(otm.otmsUnderscoreSize); 996410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fUnderlinePosition = -SkIntToScalar(otm.otmsUnderscorePosition); 9974a867a6356e05a09186a16c1c8ffc3f2cafbbe59bungeman@google.com 998410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fFlags |= SkPaint::FontMetrics::kUnderlineThinknessIsValid_Flag; 999410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fFlags |= SkPaint::FontMetrics::kUnderlinePositionIsValid_Flag; 10000abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 1001410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fXHeight = SkIntToScalar(otm.otmsXHeight); 1002410780677af260e32948b02c0725ef6ad761260cbungeman GLYPHMETRICS gm; 1003410780677af260e32948b02c0725ef6ad761260cbungeman sk_bzero(&gm, sizeof(gm)); 1004410780677af260e32948b02c0725ef6ad761260cbungeman DWORD len = GetGlyphOutlineW(fDDC, 'x', GGO_METRICS, &gm, 0, 0, &gMat2Identity); 1005410780677af260e32948b02c0725ef6ad761260cbungeman if (len != GDI_ERROR && gm.gmBlackBoxY > 0) { 1006410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fXHeight = SkIntToScalar(gm.gmBlackBoxY); 1007ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1008ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1009ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 10107430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com//////////////////////////////////////////////////////////////////////////////////////// 10117430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com 10120abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#define SK_SHOW_TEXT_BLIT_COVERAGE 0 10130abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 10147430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.comstatic void build_power_table(uint8_t table[], float ee) { 10157430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com for (int i = 0; i < 256; i++) { 10167430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com float x = i / 255.f; 101797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com x = sk_float_pow(x, ee); 1018e1ca705cac4b946993f6cbf798e2a0ba27e739f3reed@google.com int xx = SkScalarRoundToInt(x * 255); 10197430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com table[i] = SkToU8(xx); 10207430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com } 10217430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com} 10227430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com 102397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com/** 102497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * This will invert the gamma applied by GDI (gray-scale antialiased), so we 102597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * can get linear values. 102697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * 102797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * GDI grayscale appears to use a hard-coded gamma of 2.3. 102897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * 102997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * GDI grayscale appears to draw using the black and white rasterizer at four 103097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * times the size and then downsamples to compute the coverage mask. As a 103197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * result there are only seventeen total grays. This lack of fidelity means 103297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * that shifting into other color spaces is imprecise. 103397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com */ 103497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic const uint8_t* getInverseGammaTableGDI() { 103505a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Since build_power_table is idempotent, many threads can build gTableGdi 103605a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // simultaneously. 103705a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com 103805a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Microsoft Specific: 103905a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Making gInited volatile provides read-aquire and write-release in vc++. 104005a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // In VS2012, see compiler option /volatile:(ms|iso). 104105a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Replace with C++11 atomics when possible. 104205a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com static volatile bool gInited; 104397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com static uint8_t gTableGdi[256]; 104405a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com if (gInited) { 104505a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Need a L/L (read) barrier (full acquire not needed). If gInited is observed 104605a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // true then gTableGdi is observable, but it must be requested. 104705a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com } else { 104897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com build_power_table(gTableGdi, 2.3f); 104905a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Need a S/S (write) barrier (full release not needed) here so that this 105005a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // write to gInited becomes observable after gTableGdi. 105197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com gInited = true; 105297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } 105397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com return gTableGdi; 105497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com} 105597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com 105697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com/** 105797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * This will invert the gamma applied by GDI ClearType, so we can get linear 105897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * values. 105997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * 106097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * GDI ClearType uses SPI_GETFONTSMOOTHINGCONTRAST / 1000 as the gamma value. 106197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * If this value is not specified, the default is a gamma of 1.4. 106297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com */ 106397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic const uint8_t* getInverseGammaTableClearType() { 106405a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // We don't expect SPI_GETFONTSMOOTHINGCONTRAST to ever change, so building 106505a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // gTableClearType with build_power_table is effectively idempotent. 106605a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com 106705a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Microsoft Specific: 106805a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Making gInited volatile provides read-aquire and write-release in vc++. 106905a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // In VS2012, see compiler option /volatile:(ms|iso). 107005a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Replace with C++11 atomics when possible. 107105a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com static volatile bool gInited; 107297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com static uint8_t gTableClearType[256]; 107305a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com if (gInited) { 107405a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Need a L/L (read) barrier (acquire not needed). If gInited is observed 107505a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // true then gTableClearType is observable, but it must be requested. 107605a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com } else { 10777430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com UINT level = 0; 10787430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com if (!SystemParametersInfo(SPI_GETFONTSMOOTHINGCONTRAST, 0, &level, 0) || !level) { 10797430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com // can't get the data, so use a default 10807430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com level = 1400; 10817430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com } 108297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com build_power_table(gTableClearType, level / 1000.0f); 108305a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Need a S/S (write) barrier (release not needed) here so that this 108405a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // write to gInited becomes observable after gTableClearType. 10857430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com gInited = true; 10867430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com } 108797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com return gTableClearType; 10887430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com} 10897430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com 1090ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkColorPriv.h" 1091ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 10926385314686875ecb484d95b33fcbf08890b5144dbungeman@google.com//Cannot assume that the input rgb is gray due to possible setting of kGenA8FromLCD_Flag. 109397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 109497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic inline uint8_t rgb_to_a8(SkGdiRGB rgb, const uint8_t* table8) { 10956385314686875ecb484d95b33fcbf08890b5144dbungeman@google.com U8CPU r = (rgb >> 16) & 0xFF; 10966385314686875ecb484d95b33fcbf08890b5144dbungeman@google.com U8CPU g = (rgb >> 8) & 0xFF; 10976385314686875ecb484d95b33fcbf08890b5144dbungeman@google.com U8CPU b = (rgb >> 0) & 0xFF; 10981bfe01d06b896eca94c80d9af9a6bb30216b5e42bungeman@google.com return sk_apply_lut_if<APPLY_PREBLEND>(SkComputeLuminance(r, g, b), table8); 109982a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com} 110082a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 110197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 110297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic inline uint16_t rgb_to_lcd16(SkGdiRGB rgb, const uint8_t* tableR, 110397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableG, 110497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableB) { 110597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU r = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 16) & 0xFF, tableR); 110697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU g = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 8) & 0xFF, tableG); 110797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU b = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 0) & 0xFF, tableB); 11080abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#if SK_SHOW_TEXT_BLIT_COVERAGE 11090abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com r = SkMax32(r, 10); g = SkMax32(g, 10); b = SkMax32(b, 10); 11100abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#endif 111197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com return SkPack888ToRGB16(r, g, b); 1112ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1113ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 111482cff020b7e055f2d01686f060a884df842306edreed@google.com// Is this GDI color neither black nor white? If so, we have to keep this 111582cff020b7e055f2d01686f060a884df842306edreed@google.com// image as is, rather than smashing it down to a BW mask. 111682cff020b7e055f2d01686f060a884df842306edreed@google.com// 111782cff020b7e055f2d01686f060a884df842306edreed@google.com// returns int instead of bool, since we don't want/have to pay to convert 111882cff020b7e055f2d01686f060a884df842306edreed@google.com// the zero/non-zero value into a bool 111982cff020b7e055f2d01686f060a884df842306edreed@google.comstatic int is_not_black_or_white(SkGdiRGB c) { 112082cff020b7e055f2d01686f060a884df842306edreed@google.com // same as (but faster than) 112182cff020b7e055f2d01686f060a884df842306edreed@google.com // c &= 0x00FFFFFF; 112282cff020b7e055f2d01686f060a884df842306edreed@google.com // return 0 == c || 0x00FFFFFF == c; 112382cff020b7e055f2d01686f060a884df842306edreed@google.com return (c + (c & 1)) & 0x00FFFFFF; 11245e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 11255e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 11264b18f5767ab1df7fedf0ff2e3a9eac7f7c500c36bungeman@google.comstatic bool is_rgb_really_bw(const SkGdiRGB* src, int width, int height, size_t srcRB) { 11275e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int y = 0; y < height; ++y) { 11285e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int x = 0; x < width; ++x) { 112982cff020b7e055f2d01686f060a884df842306edreed@google.com if (is_not_black_or_white(src[x])) { 11305e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com return false; 11315e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 11325e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 113305a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com src = SkTAddOffset<const SkGdiRGB>(src, srcRB); 11345e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 11355e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com return true; 11365e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 11375e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 113897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com// gdi's bitmap is upside-down, so we reverse dst walking in Y 113997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com// whenever we copy it into skia's buffer 11405e2df64215f12660ab26b96816f40ad8e32bf16freed@google.comstatic void rgb_to_bw(const SkGdiRGB* SK_RESTRICT src, size_t srcRB, 114197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const SkGlyph& glyph) { 11425e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const int width = glyph.fWidth; 11435e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const size_t dstRB = (width + 7) >> 3; 11445e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com uint8_t* SK_RESTRICT dst = (uint8_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 11455e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 11465e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com int byteCount = width >> 3; 11475e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com int bitCount = width & 7; 11485e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 11495e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com // adjust srcRB to skip the values in our byteCount loop, 11505e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com // since we increment src locally there 11515e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com srcRB -= byteCount * 8 * sizeof(SkGdiRGB); 11525e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 11535e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int y = 0; y < glyph.fHeight; ++y) { 11545e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com if (byteCount > 0) { 11555e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int i = 0; i < byteCount; ++i) { 11567a230142e01c5a8cf955be12a5f287589b551634reed@google.com unsigned byte = 0; 115797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[0] & (1 << 7); 115897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[1] & (1 << 6); 115997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[2] & (1 << 5); 116097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[3] & (1 << 4); 116197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[4] & (1 << 3); 116297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[5] & (1 << 2); 116397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[6] & (1 << 1); 116497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[7] & (1 << 0); 11656a8f14d9633b330fb8051581828a0aaf4403d1a9reed@google.com dst[i] = byte; 11665e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com src += 8; 11675e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 11685e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 11695e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com if (bitCount > 0) { 11705e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com unsigned byte = 0; 11715e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com unsigned mask = 0x80; 11725e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int i = 0; i < bitCount; i++) { 117397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[i] & mask; 11745e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com mask >>= 1; 11755e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 11765e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com dst[byteCount] = byte; 11775e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 117805a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com src = SkTAddOffset<const SkGdiRGB>(src, srcRB); 11795e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com dst -= dstRB; 11805e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 11810abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#if SK_SHOW_TEXT_BLIT_COVERAGE 11820abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (glyph.fWidth > 0 && glyph.fHeight > 0) { 11830abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com uint8_t* first = (uint8_t*)glyph.fImage; 11840abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com uint8_t* last = (uint8_t*)((char*)glyph.fImage + glyph.fHeight * dstRB - 1); 11850abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com *first |= 1 << 7; 11860abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com *last |= bitCount == 0 ? 1 : 1 << (8 - bitCount); 11870abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 11880abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#endif 11895e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 11905e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 119197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 11925e2df64215f12660ab26b96816f40ad8e32bf16freed@google.comstatic void rgb_to_a8(const SkGdiRGB* SK_RESTRICT src, size_t srcRB, 119397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const SkGlyph& glyph, const uint8_t* table8) { 11945e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const size_t dstRB = glyph.rowBytes(); 11955e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const int width = glyph.fWidth; 11965e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com uint8_t* SK_RESTRICT dst = (uint8_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 11975e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 11985e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int y = 0; y < glyph.fHeight; y++) { 11995e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int i = 0; i < width; i++) { 120097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com dst[i] = rgb_to_a8<APPLY_PREBLEND>(src[i], table8); 12010abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#if SK_SHOW_TEXT_BLIT_COVERAGE 12020abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com dst[i] = SkMax32(dst[i], 10); 12030abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#endif 12045e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 120505a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com src = SkTAddOffset<const SkGdiRGB>(src, srcRB); 12065e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com dst -= dstRB; 12075e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 12085e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 12095e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 121097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 121197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic void rgb_to_lcd16(const SkGdiRGB* SK_RESTRICT src, size_t srcRB, const SkGlyph& glyph, 121297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableR, const uint8_t* tableG, const uint8_t* tableB) { 12135e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const size_t dstRB = glyph.rowBytes(); 12145e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const int width = glyph.fWidth; 12155e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com uint16_t* SK_RESTRICT dst = (uint16_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 12165e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 12175e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int y = 0; y < glyph.fHeight; y++) { 12185e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int i = 0; i < width; i++) { 121997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com dst[i] = rgb_to_lcd16<APPLY_PREBLEND>(src[i], tableR, tableG, tableB); 12205e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 122105a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com src = SkTAddOffset<const SkGdiRGB>(src, srcRB); 12225e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com dst = (uint16_t*)((char*)dst - dstRB); 12235e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 12245e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 12255e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 122630ddd615c447fed73286151b463af20d309c85f1reed@google.comvoid SkScalerContext_GDI::generateImage(const SkGlyph& glyph) { 1227ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(fDDC); 1228ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 12296271117d826098c1399cf7442f8eea2d665cb78areed@google.com const bool isBW = SkMask::kBW_Format == fRec.fMaskFormat; 123082a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com const bool isAA = !isLCD(fRec); 123182a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 123299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com size_t srcRB; 123397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const void* bits = fOffscreen.draw(glyph, isBW, &srcRB); 123439698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (NULL == bits) { 1235055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com LogFontTypeface::EnsureAccessible(this->getTypeface()); 123697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com bits = fOffscreen.draw(glyph, isBW, &srcRB); 123739698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (NULL == bits) { 123839698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com sk_bzero(glyph.fImage, glyph.computeImageSize()); 123939698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com return; 124039698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 124182a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com } 124282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 124397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com if (!isBW) { 12441bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com const uint8_t* table; 12451bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com //The offscreen contains a GDI blit if isAA and kGenA8FromLCD_Flag is not set. 12461bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com //Otherwise the offscreen contains a ClearType blit. 12471bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com if (isAA && !(fRec.fFlags & SkScalerContext::kGenA8FromLCD_Flag)) { 12481bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com table = getInverseGammaTableGDI(); 12491bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com } else { 12501bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com table = getInverseGammaTableClearType(); 125197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } 125297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //Note that the following cannot really be integrated into the 125397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //pre-blend, since we may not be applying the pre-blend; when we aren't 125497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //applying the pre-blend it means that a filter wants linear anyway. 125597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //Other code may also be applying the pre-blend, so we'd need another 125697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //one with this and one without. 12576f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com SkGdiRGB* addr = (SkGdiRGB*)bits; 12586f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com for (int y = 0; y < glyph.fHeight; ++y) { 12596f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com for (int x = 0; x < glyph.fWidth; ++x) { 12606f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com int r = (addr[x] >> 16) & 0xFF; 12616f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com int g = (addr[x] >> 8) & 0xFF; 12626f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com int b = (addr[x] >> 0) & 0xFF; 12637430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com addr[x] = (table[r] << 16) | (table[g] << 8) | table[b]; 12646f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com } 126505a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com addr = SkTAddOffset<SkGdiRGB>(addr, srcRB); 12666f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com } 12676f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com } 12686f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com 126982a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com int width = glyph.fWidth; 127082a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com size_t dstRB = glyph.rowBytes(); 127182a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com if (isBW) { 127282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com const uint8_t* src = (const uint8_t*)bits; 127382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com uint8_t* dst = (uint8_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 127482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com for (int y = 0; y < glyph.fHeight; y++) { 127582a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com memcpy(dst, src, dstRB); 127682a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com src += srcRB; 127782a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com dst -= dstRB; 1278ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 12790abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#if SK_SHOW_TEXT_BLIT_COVERAGE 12800abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (glyph.fWidth > 0 && glyph.fHeight > 0) { 12810abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com int bitCount = width & 7; 12820abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com uint8_t* first = (uint8_t*)glyph.fImage; 12830abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com uint8_t* last = (uint8_t*)((char*)glyph.fImage + glyph.fHeight * dstRB - 1); 12840abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com *first |= 1 << 7; 12850abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com *last |= bitCount == 0 ? 1 : 1 << (8 - bitCount); 12860abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 12870abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#endif 128882a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com } else if (isAA) { 12896f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com // since the caller may require A8 for maskfilters, we can't check for BW 12906f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com // ... until we have the caller tell us that explicitly 12915e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const SkGdiRGB* src = (const SkGdiRGB*)bits; 1292a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com if (fPreBlend.isApplicable()) { 1293a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com rgb_to_a8<true>(src, srcRB, glyph, fPreBlend.fG); 129497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } else { 1295a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com rgb_to_a8<false>(src, srcRB, glyph, fPreBlend.fG); 129697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } 129782a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com } else { // LCD16 12985e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const SkGdiRGB* src = (const SkGdiRGB*)bits; 12995e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com if (is_rgb_really_bw(src, width, glyph.fHeight, srcRB)) { 130097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com rgb_to_bw(src, srcRB, glyph); 13015e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com ((SkGlyph*)&glyph)->fMaskFormat = SkMask::kBW_Format; 13025e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } else { 1303d54d3fc82456f8789b3e4dff40faeb7b670bcf4breed SkASSERT(SkMask::kLCD16_Format == glyph.fMaskFormat); 1304d54d3fc82456f8789b3e4dff40faeb7b670bcf4breed if (fPreBlend.isApplicable()) { 1305d54d3fc82456f8789b3e4dff40faeb7b670bcf4breed rgb_to_lcd16<true>(src, srcRB, glyph, 1306d54d3fc82456f8789b3e4dff40faeb7b670bcf4breed fPreBlend.fR, fPreBlend.fG, fPreBlend.fB); 1307754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } else { 1308d54d3fc82456f8789b3e4dff40faeb7b670bcf4breed rgb_to_lcd16<false>(src, srcRB, glyph, 1309d54d3fc82456f8789b3e4dff40faeb7b670bcf4breed fPreBlend.fR, fPreBlend.fG, fPreBlend.fB); 1310754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } 1311ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1312ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1313ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1314ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 13150abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.comclass GDIGlyphbufferPointIter { 13160abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.compublic: 131727e21fe577211c1c40cbf40d0385b02c69d04522skia.committer@gmail.com GDIGlyphbufferPointIter(const uint8_t* glyphbuf, DWORD total_size) 13180abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com : fHeaderIter(glyphbuf, total_size), fCurveIter(), fPointIter() 13190abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com { } 13200abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 1321dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com POINTFX const * next() { 13220abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.comnextHeader: 13230abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (!fCurveIter.isSet()) { 13240abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYGONHEADER* header = fHeaderIter.next(); 1325dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com if (NULL == header) { 1326dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com return NULL; 1327dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com } 13280abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fCurveIter.set(header); 13290abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYCURVE* curve = fCurveIter.next(); 1330dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com if (NULL == curve) { 1331dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com return NULL; 1332dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com } 13330abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fPointIter.set(curve); 1334dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com return &header->pfxStart; 13350abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 1336ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 13370abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const POINTFX* nextPoint = fPointIter.next(); 13380abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (NULL == nextPoint) { 13390abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYCURVE* curve = fCurveIter.next(); 13400abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (NULL == curve) { 13410abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fCurveIter.set(); 13420abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com goto nextHeader; 13430abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } else { 13440abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fPointIter.set(curve); 13450abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 13460abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com nextPoint = fPointIter.next(); 13470abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 1348dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com return nextPoint; 13490abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 1350ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 13510abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com WORD currentCurveType() { 13520abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return fPointIter.fCurveType; 13530abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 135405a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com 13550abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.comprivate: 13560abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com /** Iterates over all of the polygon headers in a glyphbuf. */ 13570abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com class GDIPolygonHeaderIter { 13580abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com public: 135927e21fe577211c1c40cbf40d0385b02c69d04522skia.committer@gmail.com GDIPolygonHeaderIter(const uint8_t* glyphbuf, DWORD total_size) 13600abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com : fCurPolygon(reinterpret_cast<const TTPOLYGONHEADER*>(glyphbuf)) 13610abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com , fEndPolygon(SkTAddOffset<const TTPOLYGONHEADER>(glyphbuf, total_size)) 13620abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com { } 13630abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 13640abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYGONHEADER* next() { 13650abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (fCurPolygon >= fEndPolygon) { 13660abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return NULL; 13670abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 13680abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYGONHEADER* thisPolygon = fCurPolygon; 13690abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fCurPolygon = SkTAddOffset<const TTPOLYGONHEADER>(fCurPolygon, fCurPolygon->cb); 13700abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return thisPolygon; 13710abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 13720abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com private: 13730abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYGONHEADER* fCurPolygon; 13740abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYGONHEADER* fEndPolygon; 13750abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com }; 137605a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com 13770abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com /** Iterates over all of the polygon curves in a polygon header. */ 13780abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com class GDIPolygonCurveIter { 13790abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com public: 13800abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GDIPolygonCurveIter() : fCurCurve(NULL), fEndCurve(NULL) { } 13810abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 13820abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GDIPolygonCurveIter(const TTPOLYGONHEADER* curPolygon) 13830abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com : fCurCurve(SkTAddOffset<const TTPOLYCURVE>(curPolygon, sizeof(TTPOLYGONHEADER))) 13840abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com , fEndCurve(SkTAddOffset<const TTPOLYCURVE>(curPolygon, curPolygon->cb)) 13850abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com { } 13860abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 13870abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com bool isSet() { return fCurCurve != NULL; } 13880abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 13890abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com void set(const TTPOLYGONHEADER* curPolygon) { 13900abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fCurCurve = SkTAddOffset<const TTPOLYCURVE>(curPolygon, sizeof(TTPOLYGONHEADER)); 13910abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fEndCurve = SkTAddOffset<const TTPOLYCURVE>(curPolygon, curPolygon->cb); 13920abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 13930abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com void set() { 13940abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fCurCurve = NULL; 13950abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fEndCurve = NULL; 13960abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 13970abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 13980abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYCURVE* next() { 13990abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (fCurCurve >= fEndCurve) { 14000abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return NULL; 140105a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com } 14020abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYCURVE* thisCurve = fCurCurve; 14030abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fCurCurve = SkTAddOffset<const TTPOLYCURVE>(fCurCurve, size_of_TTPOLYCURVE(*fCurCurve)); 14040abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return thisCurve; 14050abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 14060abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com private: 14070abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com size_t size_of_TTPOLYCURVE(const TTPOLYCURVE& curve) { 14080abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return 2*sizeof(WORD) + curve.cpfx*sizeof(POINTFX); 140905a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com } 14100abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYCURVE* fCurCurve; 14110abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYCURVE* fEndCurve; 14120abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com }; 141305a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com 14140abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com /** Iterates over all of the polygon points in a polygon curve. */ 14150abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com class GDIPolygonCurvePointIter { 14160abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com public: 14170abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GDIPolygonCurvePointIter() : fCurveType(0), fCurPoint(NULL), fEndPoint(NULL) { } 141805a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com 14190abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GDIPolygonCurvePointIter(const TTPOLYCURVE* curPolygon) 14200abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com : fCurveType(curPolygon->wType) 14210abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com , fCurPoint(&curPolygon->apfx[0]) 14220abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com , fEndPoint(&curPolygon->apfx[curPolygon->cpfx]) 14230abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com { } 14240abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 14250abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com bool isSet() { return fCurPoint != NULL; } 14260abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 14270abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com void set(const TTPOLYCURVE* curPolygon) { 14280abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fCurveType = curPolygon->wType; 14290abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fCurPoint = &curPolygon->apfx[0]; 14300abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fEndPoint = &curPolygon->apfx[curPolygon->cpfx]; 14310abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 14320abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com void set() { 14330abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fCurPoint = NULL; 14340abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fEndPoint = NULL; 14350abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 14360abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 14370abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const POINTFX* next() { 14380abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (fCurPoint >= fEndPoint) { 14390abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return NULL; 144005a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com } 14410abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const POINTFX* thisPoint = fCurPoint; 14420abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com ++fCurPoint; 14430abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return thisPoint; 1444d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 1445ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 14460abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com WORD fCurveType; 14470abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com private: 14480abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const POINTFX* fCurPoint; 14490abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const POINTFX* fEndPoint; 14500abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com }; 14510abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 14520abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GDIPolygonHeaderIter fHeaderIter; 14530abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GDIPolygonCurveIter fCurveIter; 14540abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GDIPolygonCurvePointIter fPointIter; 14550abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com}; 14560abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 14570abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.comstatic void sk_path_from_gdi_path(SkPath* path, const uint8_t* glyphbuf, DWORD total_size) { 1458d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const uint8_t* cur_glyph = glyphbuf; 1459d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const uint8_t* end_glyph = glyphbuf + total_size; 1460ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1461d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com while (cur_glyph < end_glyph) { 1462d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const TTPOLYGONHEADER* th = (TTPOLYGONHEADER*)cur_glyph; 1463ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1464d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const uint8_t* end_poly = cur_glyph + th->cb; 1465d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const uint8_t* cur_poly = cur_glyph + sizeof(TTPOLYGONHEADER); 1466ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1467d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com path->moveTo(SkFixedToScalar( SkFIXEDToFixed(th->pfxStart.x)), 1468d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(th->pfxStart.y))); 1469ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1470d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com while (cur_poly < end_poly) { 1471d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const TTPOLYCURVE* pc = (const TTPOLYCURVE*)cur_poly; 1472ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1473d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (pc->wType == TT_PRIM_LINE) { 1474d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com for (uint16_t i = 0; i < pc->cpfx; i++) { 1475d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com path->lineTo(SkFixedToScalar( SkFIXEDToFixed(pc->apfx[i].x)), 1476d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(pc->apfx[i].y))); 1477ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1478d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 1479ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1480d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (pc->wType == TT_PRIM_QSPLINE) { 1481d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com for (uint16_t u = 0; u < pc->cpfx - 1; u++) { // Walk through points in spline 1482d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com POINTFX pnt_b = pc->apfx[u]; // B is always the current point 1483d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com POINTFX pnt_c = pc->apfx[u+1]; 1484ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1485d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (u < pc->cpfx - 2) { // If not on last spline, compute C 1486d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com pnt_c.x = SkFixedToFIXED(SkFixedAve(SkFIXEDToFixed(pnt_b.x), 1487d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFIXEDToFixed(pnt_c.x))); 1488d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com pnt_c.y = SkFixedToFIXED(SkFixedAve(SkFIXEDToFixed(pnt_b.y), 1489d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFIXEDToFixed(pnt_c.y))); 1490ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1491d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com 1492d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com path->quadTo(SkFixedToScalar( SkFIXEDToFixed(pnt_b.x)), 1493d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(pnt_b.y)), 1494d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFixedToScalar( SkFIXEDToFixed(pnt_c.x)), 1495d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(pnt_c.y))); 1496ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1497ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1498d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // Advance past this TTPOLYCURVE. 1499d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com cur_poly += sizeof(WORD) * 2 + sizeof(POINTFX) * pc->cpfx; 1500ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1501d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com cur_glyph += th->cb; 1502d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com path->close(); 1503ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1504ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1505ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1506dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com#define move_next_expected_hinted_point(iter, pElem) do {\ 1507dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com pElem = iter.next(); \ 1508dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com if (NULL == pElem) return false; \ 1509dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com} while(0) 1510dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com 1511dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com// It is possible for the hinted and unhinted versions of the same path to have 1512dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com// a different number of points due to GDI's handling of flipped points. 1513dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com// If this is detected, this will return false. 1514dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.comstatic bool sk_path_from_gdi_paths(SkPath* path, const uint8_t* glyphbuf, DWORD total_size, 15150abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GDIGlyphbufferPointIter hintedYs) { 15160abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const uint8_t* cur_glyph = glyphbuf; 15170abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const uint8_t* end_glyph = glyphbuf + total_size; 15180abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 1519dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com POINTFX const * hintedPoint; 1520dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com 15210abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com while (cur_glyph < end_glyph) { 15220abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYGONHEADER* th = (TTPOLYGONHEADER*)cur_glyph; 15230abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 15240abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const uint8_t* end_poly = cur_glyph + th->cb; 15250abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const uint8_t* cur_poly = cur_glyph + sizeof(TTPOLYGONHEADER); 15260abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 1527dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com move_next_expected_hinted_point(hintedYs, hintedPoint); 15280abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com path->moveTo(SkFixedToScalar( SkFIXEDToFixed(th->pfxStart.x)), 1529dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(hintedPoint->y))); 15300abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 15310abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com while (cur_poly < end_poly) { 15320abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYCURVE* pc = (const TTPOLYCURVE*)cur_poly; 15330abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 15340abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (pc->wType == TT_PRIM_LINE) { 15350abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com for (uint16_t i = 0; i < pc->cpfx; i++) { 1536dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com move_next_expected_hinted_point(hintedYs, hintedPoint); 15370abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com path->lineTo(SkFixedToScalar( SkFIXEDToFixed(pc->apfx[i].x)), 1538dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(hintedPoint->y))); 15390abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 15400abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 15410abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 15420abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (pc->wType == TT_PRIM_QSPLINE) { 15430abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com POINTFX currentPoint = pc->apfx[0]; 1544dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com move_next_expected_hinted_point(hintedYs, hintedPoint); 15450abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // only take the hinted y if it wasn't flipped 15460abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (hintedYs.currentCurveType() == TT_PRIM_QSPLINE) { 1547dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com currentPoint.y = hintedPoint->y; 15480abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 15490abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com for (uint16_t u = 0; u < pc->cpfx - 1; u++) { // Walk through points in spline 15500abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com POINTFX pnt_b = currentPoint;//pc->apfx[u]; // B is always the current point 15510abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com POINTFX pnt_c = pc->apfx[u+1]; 1552dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com move_next_expected_hinted_point(hintedYs, hintedPoint); 15530abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // only take the hinted y if it wasn't flipped 15540abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (hintedYs.currentCurveType() == TT_PRIM_QSPLINE) { 1555dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com pnt_c.y = hintedPoint->y; 15560abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 15570abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com currentPoint.x = pnt_c.x; 15580abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com currentPoint.y = pnt_c.y; 15590abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 15600abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (u < pc->cpfx - 2) { // If not on last spline, compute C 15610abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com pnt_c.x = SkFixedToFIXED(SkFixedAve(SkFIXEDToFixed(pnt_b.x), 15620abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkFIXEDToFixed(pnt_c.x))); 15630abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com pnt_c.y = SkFixedToFIXED(SkFixedAve(SkFIXEDToFixed(pnt_b.y), 15640abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkFIXEDToFixed(pnt_c.y))); 15650abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 15660abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 15670abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com path->quadTo(SkFixedToScalar( SkFIXEDToFixed(pnt_b.x)), 15680abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(pnt_b.y)), 15690abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkFixedToScalar( SkFIXEDToFixed(pnt_c.x)), 15700abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(pnt_c.y))); 15710abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 15720abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 15730abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // Advance past this TTPOLYCURVE. 15740abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com cur_poly += sizeof(WORD) * 2 + sizeof(POINTFX) * pc->cpfx; 15750abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 15760abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com cur_glyph += th->cb; 15770abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com path->close(); 15780abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 1579dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com return true; 15800abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com} 15810abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 158230ddd615c447fed73286151b463af20d309c85f1reed@google.comDWORD SkScalerContext_GDI::getGDIGlyphPath(const SkGlyph& glyph, UINT flags, 15830abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkAutoSTMalloc<BUFFERSIZE, uint8_t>* glyphbuf) 15840abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com{ 15850abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GLYPHMETRICS gm; 15860abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 1587b69d0e0ac45e13f667bc11a937dcb547072bc93dherb DWORD total_size = GetGlyphOutlineW(fDDC, glyph.getGlyphID(), flags, &gm, BUFFERSIZE, glyphbuf->get(), &fMat22); 15880abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // Sometimes GetGlyphOutlineW returns a number larger than BUFFERSIZE even if BUFFERSIZE > 0. 15890abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // It has been verified that this does not involve a buffer overrun. 15900abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (GDI_ERROR == total_size || total_size > BUFFERSIZE) { 15910abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // GDI_ERROR because the BUFFERSIZE was too small, or because the data was not accessible. 15920abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // When the data is not accessable GetGlyphOutlineW fails rather quickly, 15930abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // so just try to get the size. If that fails then ensure the data is accessible. 1594b69d0e0ac45e13f667bc11a937dcb547072bc93dherb total_size = GetGlyphOutlineW(fDDC, glyph.getGlyphID(), flags, &gm, 0, NULL, &fMat22); 15950abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (GDI_ERROR == total_size) { 15960abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com LogFontTypeface::EnsureAccessible(this->getTypeface()); 1597b69d0e0ac45e13f667bc11a937dcb547072bc93dherb total_size = GetGlyphOutlineW(fDDC, glyph.getGlyphID(), flags, &gm, 0, NULL, &fMat22); 15980abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (GDI_ERROR == total_size) { 1599c6cb56f36c4aad8ed45486a3bb4de614bb822f1bkkinnunen // GetGlyphOutlineW is known to fail for some characters, such as spaces. 1600c6cb56f36c4aad8ed45486a3bb4de614bb822f1bkkinnunen // In these cases, just return that the glyph does not have a shape. 16010abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return 0; 16020abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16030abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16040abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 16050abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com glyphbuf->reset(total_size); 16060abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 1607b69d0e0ac45e13f667bc11a937dcb547072bc93dherb DWORD ret = GetGlyphOutlineW(fDDC, glyph.getGlyphID(), flags, &gm, total_size, glyphbuf->get(), &fMat22); 16080abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (GDI_ERROR == ret) { 16090abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com LogFontTypeface::EnsureAccessible(this->getTypeface()); 1610b69d0e0ac45e13f667bc11a937dcb547072bc93dherb ret = GetGlyphOutlineW(fDDC, glyph.getGlyphID(), flags, &gm, total_size, glyphbuf->get(), &fMat22); 16110abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (GDI_ERROR == ret) { 16120abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkASSERT(false); 16130abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return 0; 16140abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16150abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16160abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16170abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return total_size; 16180abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com} 16190abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 162030ddd615c447fed73286151b463af20d309c85f1reed@google.comvoid SkScalerContext_GDI::generatePath(const SkGlyph& glyph, SkPath* path) { 16213ba043f460a5d60a7fd733f4109132fa79148559dcheng SkASSERT(path); 16220abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkASSERT(fDDC); 16230abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 16240abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com path->reset(); 16250abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 16260abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // Out of all the fonts on a typical Windows box, 16270abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // 25% of glyphs require more than 2KB. 16280abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // 1% of glyphs require more than 4KB. 16290abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // 0.01% of glyphs require more than 8KB. 16300abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // 8KB is less than 1% of the normal 1MB stack on Windows. 16310abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // Note that some web fonts glyphs require more than 20KB. 16320abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com //static const DWORD BUFFERSIZE = (1 << 13); 16330abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 16340abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com //GDI only uses hinted outlines when axis aligned. 16350abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com UINT format = GGO_NATIVE | GGO_GLYPH_INDEX; 16360abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (fRec.getHinting() == SkPaint::kNo_Hinting || fRec.getHinting() == SkPaint::kSlight_Hinting){ 16370abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com format |= GGO_UNHINTED; 16380abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16390abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkAutoSTMalloc<BUFFERSIZE, uint8_t> glyphbuf(BUFFERSIZE); 16400abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com DWORD total_size = getGDIGlyphPath(glyph, format, &glyphbuf); 16410abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (0 == total_size) { 16420abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return; 16430abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16440abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 16450abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (fRec.getHinting() != SkPaint::kSlight_Hinting) { 16460abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com sk_path_from_gdi_path(path, glyphbuf, total_size); 16470abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } else { 16480abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com //GDI only uses hinted outlines when axis aligned. 16490abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com UINT format = GGO_NATIVE | GGO_GLYPH_INDEX; 16500abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 16510abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkAutoSTMalloc<BUFFERSIZE, uint8_t> hintedGlyphbuf(BUFFERSIZE); 16520abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com DWORD hinted_total_size = getGDIGlyphPath(glyph, format, &hintedGlyphbuf); 16530abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (0 == hinted_total_size) { 16540abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return; 16550abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16560abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 1657dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com if (!sk_path_from_gdi_paths(path, glyphbuf, total_size, 1658dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com GDIGlyphbufferPointIter(hintedGlyphbuf, hinted_total_size))) 1659dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com { 1660dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com path->reset(); 1661dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com sk_path_from_gdi_path(path, glyphbuf, total_size); 1662dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com } 16630abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16640abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com} 16650abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 1666484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comstatic void logfont_for_name(const char* familyName, LOGFONT* lf) { 1667484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com sk_bzero(lf, sizeof(LOGFONT)); 1668e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com#ifdef UNICODE 1669484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com // Get the buffer size needed first. 1670484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com size_t str_len = ::MultiByteToWideChar(CP_UTF8, 0, familyName, 1671484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com -1, NULL, 0); 1672484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com // Allocate a buffer (str_len already has terminating null 1673484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com // accounted for). 1674484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com wchar_t *wideFamilyName = new wchar_t[str_len]; 1675484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com // Now actually convert the string. 1676484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ::MultiByteToWideChar(CP_UTF8, 0, familyName, -1, 1677484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com wideFamilyName, str_len); 1678484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ::wcsncpy(lf->lfFaceName, wideFamilyName, LF_FACESIZE - 1); 1679484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com delete [] wideFamilyName; 1680484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com lf->lfFaceName[LF_FACESIZE-1] = L'\0'; 1681e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com#else 1682484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ::strncpy(lf->lfFaceName, familyName, LF_FACESIZE - 1); 1683484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com lf->lfFaceName[LF_FACESIZE - 1] = '\0'; 1684e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com#endif 1685e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com} 1686e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com 1687b374d6a62c0259387d90cad74753d8bad9ee1beabungemanvoid LogFontTypeface::onGetFamilyName(SkString* familyName) const { 16887103f182ce61280eacb35f1832df350b642a5381bungeman@google.com // Get the actual name of the typeface. The logfont may not know this. 16895526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.com HFONT font = CreateFontIndirect(&fLogFont); 16907103f182ce61280eacb35f1832df350b642a5381bungeman@google.com 16917103f182ce61280eacb35f1832df350b642a5381bungeman@google.com HDC deviceContext = ::CreateCompatibleDC(NULL); 16927103f182ce61280eacb35f1832df350b642a5381bungeman@google.com HFONT savefont = (HFONT)SelectObject(deviceContext, font); 16937103f182ce61280eacb35f1832df350b642a5381bungeman@google.com 1694b374d6a62c0259387d90cad74753d8bad9ee1beabungeman dcfontname_to_skstring(deviceContext, fLogFont, familyName); 16957103f182ce61280eacb35f1832df350b642a5381bungeman@google.com 16967103f182ce61280eacb35f1832df350b642a5381bungeman@google.com if (deviceContext) { 16977103f182ce61280eacb35f1832df350b642a5381bungeman@google.com ::SelectObject(deviceContext, savefont); 16987103f182ce61280eacb35f1832df350b642a5381bungeman@google.com ::DeleteDC(deviceContext); 16997103f182ce61280eacb35f1832df350b642a5381bungeman@google.com } 17007103f182ce61280eacb35f1832df350b642a5381bungeman@google.com if (font) { 17017103f182ce61280eacb35f1832df350b642a5381bungeman@google.com ::DeleteObject(font); 17027103f182ce61280eacb35f1832df350b642a5381bungeman@google.com } 1703b374d6a62c0259387d90cad74753d8bad9ee1beabungeman} 17047103f182ce61280eacb35f1832df350b642a5381bungeman@google.com 1705b374d6a62c0259387d90cad74753d8bad9ee1beabungemanvoid LogFontTypeface::onGetFontDescriptor(SkFontDescriptor* desc, 1706b374d6a62c0259387d90cad74753d8bad9ee1beabungeman bool* isLocalStream) const { 1707b374d6a62c0259387d90cad74753d8bad9ee1beabungeman SkString familyName; 1708b374d6a62c0259387d90cad74753d8bad9ee1beabungeman this->onGetFamilyName(&familyName); 17095526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.com desc->setFamilyName(familyName.c_str()); 17105526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.com *isLocalStream = this->fSerializeAsStream; 1711ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1712ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1713ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic bool getWidthAdvance(HDC hdc, int gId, int16_t* advance) { 1714ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Initialize the MAT2 structure to the identify transformation matrix. 1715ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com static const MAT2 mat2 = {SkScalarToFIXED(1), SkScalarToFIXED(0), 1716ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkScalarToFIXED(0), SkScalarToFIXED(1)}; 1717ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int flags = GGO_METRICS | GGO_GLYPH_INDEX; 1718ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com GLYPHMETRICS gm; 1719ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (GDI_ERROR == GetGlyphOutline(hdc, gId, flags, &gm, 0, NULL, &mat2)) { 1720ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return false; 1721ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1722ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(advance); 1723ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com *advance = gm.gmCellIncX; 1724ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return true; 1725ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1726ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 17272689f615e364dc48ad73826564f5b13d2329179dreed@google.comSkAdvancedTypefaceMetrics* LogFontTypeface::onGetAdvancedTypefaceMetrics( 172839a9a5069b25aa8b9529118cfd0ece5f412fb56breed PerGlyphInfo perGlyphInfo, 172937ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org const uint32_t* glyphIDs, 17302689f615e364dc48ad73826564f5b13d2329179dreed@google.com uint32_t glyphIDsCount) const { 17312689f615e364dc48ad73826564f5b13d2329179dreed@google.com LOGFONT lf = fLogFont; 1732ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkAdvancedTypefaceMetrics* info = NULL; 1733ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1734ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HDC hdc = CreateCompatibleDC(NULL); 1735ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT font = CreateFontIndirect(&lf); 1736ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT savefont = (HFONT)SelectObject(hdc, font); 1737ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT designFont = NULL; 1738ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 173905b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com const char stem_chars[] = {'i', 'I', '!', '1'}; 174005b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com int16_t min_width; 174105b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com unsigned glyphCount; 174205b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com 1743ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // To request design units, create a logical font whose height is specified 1744ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // as unitsPerEm. 1745ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com OUTLINETEXTMETRIC otm; 174639698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com unsigned int otmRet = GetOutlineTextMetrics(hdc, sizeof(otm), &otm); 174739698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (0 == otmRet) { 1748055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com call_ensure_accessible(lf); 174939698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com otmRet = GetOutlineTextMetrics(hdc, sizeof(otm), &otm); 175039698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 175139698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (!otmRet || !GetTextFace(hdc, LF_FACESIZE, lf.lfFaceName)) { 1752ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com goto Error; 1753ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1754ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com lf.lfHeight = -SkToS32(otm.otmEMSquare); 1755ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com designFont = CreateFontIndirect(&lf); 1756ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SelectObject(hdc, designFont); 1757ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (!GetOutlineTextMetrics(hdc, sizeof(otm), &otm)) { 1758ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com goto Error; 1759ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 17607bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com glyphCount = calculateGlyphCount(hdc, fLogFont); 1761ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1762ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info = new SkAdvancedTypefaceMetrics; 1763ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fEmSize = otm.otmEMSquare; 1764ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fLastGlyphID = SkToU16(glyphCount - 1); 17657103f182ce61280eacb35f1832df350b642a5381bungeman@google.com tchar_to_skstring(lf.lfFaceName, &info->fFontName); 17660f9bad01b0e7ad592ffb342dcf1d238b15329be1vandebo // If bit 1 is set, the font may not be embedded in a document. 17670f9bad01b0e7ad592ffb342dcf1d238b15329be1vandebo // If bit 1 is clear, the font can be embedded. 17680f9bad01b0e7ad592ffb342dcf1d238b15329be1vandebo // If bit 2 is set, the embedding is read-only. 17690f9bad01b0e7ad592ffb342dcf1d238b15329be1vandebo if (otm.otmfsType & 0x1) { 17700f9bad01b0e7ad592ffb342dcf1d238b15329be1vandebo info->fFlags = SkTBitOr<SkAdvancedTypefaceMetrics::FontFlags>( 17710f9bad01b0e7ad592ffb342dcf1d238b15329be1vandebo info->fFlags, 17720f9bad01b0e7ad592ffb342dcf1d238b15329be1vandebo SkAdvancedTypefaceMetrics::kNotEmbeddable_FontFlag); 17730f9bad01b0e7ad592ffb342dcf1d238b15329be1vandebo } 1774ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 177539a9a5069b25aa8b9529118cfd0ece5f412fb56breed if (perGlyphInfo & kToUnicode_PerGlyphInfo) { 17766744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org populate_glyph_to_unicode(hdc, glyphCount, &(info->fGlyphToUnicode)); 17776744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 17786744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 1779d41e70de196e78e21e1001d23a7259785cbd0835vandebo@chromium.org if (glyphCount > 0 && 1780d41e70de196e78e21e1001d23a7259785cbd0835vandebo@chromium.org (otm.otmTextMetrics.tmPitchAndFamily & TMPF_TRUETYPE)) { 1781ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fType = SkAdvancedTypefaceMetrics::kTrueType_Font; 1782ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 1783390c6d7a9018e233a6519397ac6c739fb21a99efedisonn@google.com goto ReturnInfo; 1784ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 17855aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org 1786ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // If this bit is clear the font is a fixed pitch font. 1787ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (!(otm.otmTextMetrics.tmPitchAndFamily & TMPF_FIXED_PITCH)) { 1788ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kFixedPitch_Style; 1789ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1790ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (otm.otmTextMetrics.tmItalic) { 1791ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kItalic_Style; 1792ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1793ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (otm.otmTextMetrics.tmPitchAndFamily & FF_ROMAN) { 1794ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kSerif_Style; 1795ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else if (otm.otmTextMetrics.tmPitchAndFamily & FF_SCRIPT) { 1796ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kScript_Style; 1797ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1798ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1799ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // The main italic angle of the font, in tenths of a degree counterclockwise 1800ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // from vertical. 1801ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fItalicAngle = otm.otmItalicAngle / 10; 1802ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fAscent = SkToS16(otm.otmTextMetrics.tmAscent); 1803ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fDescent = SkToS16(-otm.otmTextMetrics.tmDescent); 1804ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // TODO(ctguil): Use alternate cap height calculation. 1805ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // MSDN says otmsCapEmHeight is not support but it is returning a value on 1806ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // my Win7 box. 1807ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fCapHeight = otm.otmsCapEmHeight; 1808ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fBBox = 1809ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkIRect::MakeLTRB(otm.otmrcFontBox.left, otm.otmrcFontBox.top, 1810ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com otm.otmrcFontBox.right, otm.otmrcFontBox.bottom); 1811ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1812ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Figure out a good guess for StemV - Min width of i, I, !, 1. 1813ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // This probably isn't very good with an italic font. 181405b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com min_width = SHRT_MAX; 1815ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStemV = 0; 1816ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com for (size_t i = 0; i < SK_ARRAY_COUNT(stem_chars); i++) { 1817ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ABC abcWidths; 1818ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (GetCharABCWidths(hdc, stem_chars[i], stem_chars[i], &abcWidths)) { 1819ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int16_t width = abcWidths.abcB; 1820ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (width > 0 && width < min_width) { 1821ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com min_width = width; 1822ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStemV = min_width; 1823ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1824ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1825ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1826ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 182739a9a5069b25aa8b9529118cfd0ece5f412fb56breed if (perGlyphInfo & kHAdvance_PerGlyphInfo) { 18285aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org if (info->fStyle & SkAdvancedTypefaceMetrics::kFixedPitch_Style) { 18295aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org appendRange(&info->fGlyphWidths, 0); 18305aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org info->fGlyphWidths->fAdvance.append(1, &min_width); 18315aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org finishRange(info->fGlyphWidths.get(), 0, 18325aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org SkAdvancedTypefaceMetrics::WidthRange::kDefault); 18335aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org } else { 18345aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org info->fGlyphWidths.reset( 183537ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org getAdvanceData(hdc, 183637ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org glyphCount, 183737ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org glyphIDs, 183837ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org glyphIDsCount, 183937ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org &getWidthAdvance)); 18405aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org } 1841ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1842ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1843ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comError: 1844390c6d7a9018e233a6519397ac6c739fb21a99efedisonn@google.comReturnInfo: 1845ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SelectObject(hdc, savefont); 1846ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteObject(designFont); 1847ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteObject(font); 1848ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteDC(hdc); 1849ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1850ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return info; 1851ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1852ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1853a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com//Dummy representation of a Base64 encoded GUID from create_unique_font_name. 1854a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#define BASE64_GUID_ID "XXXXXXXXXXXXXXXXXXXXXXXX" 1855a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com//Length of GUID representation from create_id, including NULL terminator. 1856a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#define BASE64_GUID_ID_LEN SK_ARRAY_COUNT(BASE64_GUID_ID) 1857a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 185899fe82260633fcf5d92cca38d12ef0937ecca61cbungemanstatic_assert(BASE64_GUID_ID_LEN < LF_FACESIZE, "GUID_longer_than_facesize"); 1859a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1860a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 1861a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com NameID 6 Postscript names cannot have the character '/'. 1862a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com It would be easier to hex encode the GUID, but that is 32 bytes, 1863a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com and many systems have issues with names longer than 28 bytes. 1864a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com The following need not be any standard base64 encoding. 1865a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com The encoded value is never decoded. 1866a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com*/ 1867d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.comstatic const char postscript_safe_base64_encode[] = 1868a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com "ABCDEFGHIJKLMNOPQRSTUVWXYZ" 1869a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com "abcdefghijklmnopqrstuvwxyz" 1870a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com "0123456789-_="; 1871a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1872a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 1873a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com Formats a GUID into Base64 and places it into buffer. 1874a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com buffer should have space for at least BASE64_GUID_ID_LEN characters. 1875a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com The string will always be null terminated. 1876a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com XXXXXXXXXXXXXXXXXXXXXXXX0 1877a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 1878a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comstatic void format_guid_b64(const GUID& guid, char* buffer, size_t bufferSize) { 1879a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com SkASSERT(bufferSize >= BASE64_GUID_ID_LEN); 1880a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com size_t written = SkBase64::Encode(&guid, sizeof(guid), buffer, postscript_safe_base64_encode); 1881a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com SkASSERT(written < LF_FACESIZE); 1882a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com buffer[written] = '\0'; 1883a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com} 1884a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1885a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 1886a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com Creates a Base64 encoded GUID and places it into buffer. 1887a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com buffer should have space for at least BASE64_GUID_ID_LEN characters. 1888a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com The string will always be null terminated. 1889a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com XXXXXXXXXXXXXXXXXXXXXXXX0 1890a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 1891a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comstatic HRESULT create_unique_font_name(char* buffer, size_t bufferSize) { 1892a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com GUID guid = {}; 1893a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com if (FAILED(CoCreateGuid(&guid))) { 1894a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return E_UNEXPECTED; 1895a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1896a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com format_guid_b64(guid, buffer, bufferSize); 1897a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1898a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return S_OK; 1899a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com} 1900a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1901a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 1902a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com Introduces a font to GDI. On failure will return NULL. The returned handle 1903a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com should eventually be passed to RemoveFontMemResourceEx. 1904a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com*/ 1905a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comstatic HANDLE activate_font(SkData* fontData) { 1906a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com DWORD numFonts = 0; 1907a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com //AddFontMemResourceEx just copies the data, but does not specify const. 1908a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com HANDLE fontHandle = AddFontMemResourceEx(const_cast<void*>(fontData->data()), 19094b18f5767ab1df7fedf0ff2e3a9eac7f7c500c36bungeman@google.com static_cast<DWORD>(fontData->size()), 1910a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 0, 1911a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com &numFonts); 1912a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1913a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com if (fontHandle != NULL && numFonts < 1) { 1914a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com RemoveFontMemResourceEx(fontHandle); 1915a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return NULL; 1916a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1917a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1918a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return fontHandle; 1919a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com} 1920a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1921a1193e4b0e34a7e4e1bd33e9708d7341679f8321scroggo// Does not affect ownership of stream. 19225f213d9627d2eefa7da81cd97f36754f75eb4ae9bungemanstatic SkTypeface* create_from_stream(SkStreamAsset* stream) { 1923a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Create a unique and unpredictable font name. 1924a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Avoids collisions and access from CSS. 1925a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com char familyName[BASE64_GUID_ID_LEN]; 1926a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com const int familyNameSize = SK_ARRAY_COUNT(familyName); 1927a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com if (FAILED(create_unique_font_name(familyName, familyNameSize))) { 1928a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return NULL; 1929a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1930d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com 1931a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Change the name of the font. 1932e9bbee397ce96aa6642a42823feb1d7c4a8ffd8bbungeman@google.com SkAutoTUnref<SkData> rewrittenFontData(SkOTUtils::RenameFont(stream, familyName, familyNameSize-1)); 1933e9bbee397ce96aa6642a42823feb1d7c4a8ffd8bbungeman@google.com if (NULL == rewrittenFontData.get()) { 1934a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return NULL; 1935a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1936ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1937a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Register the font with GDI. 1938e9bbee397ce96aa6642a42823feb1d7c4a8ffd8bbungeman@google.com HANDLE fontReference = activate_font(rewrittenFontData.get()); 1939a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com if (NULL == fontReference) { 1940a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return NULL; 1941a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1942a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1943a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Create the typeface. 1944a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com LOGFONT lf; 1945484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com logfont_for_name(familyName, &lf); 1946a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1947a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return SkCreateFontMemResourceTypefaceFromLOGFONT(lf, fontReference); 1948ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1949ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 19505f213d9627d2eefa7da81cd97f36754f75eb4ae9bungemanSkStreamAsset* LogFontTypeface::onOpenStream(int* ttcIndex) const { 19510042b9c2a2e6fe954cdfbcd5a5b7449cdf41a4c3reed@google.com *ttcIndex = 0; 19520042b9c2a2e6fe954cdfbcd5a5b7449cdf41a4c3reed@google.com 1953f4c2622a1a3489988f2d85a81fdc132b17a92bddctguil@chromium.org const DWORD kTTCTag = 1954f4c2622a1a3489988f2d85a81fdc132b17a92bddctguil@chromium.org SkEndian_SwapBE32(SkSetFourByteTag('t', 't', 'c', 'f')); 19550042b9c2a2e6fe954cdfbcd5a5b7449cdf41a4c3reed@google.com LOGFONT lf = fLogFont; 1956ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1957ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HDC hdc = ::CreateCompatibleDC(NULL); 195859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com HFONT font = CreateFontIndirect(&lf); 1959ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT savefont = (HFONT)SelectObject(hdc, font); 1960ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1961d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org SkMemoryStream* stream = NULL; 1962d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org DWORD tables[2] = {kTTCTag, 0}; 1963d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org for (int i = 0; i < SK_ARRAY_COUNT(tables); i++) { 19644b18f5767ab1df7fedf0ff2e3a9eac7f7c500c36bungeman@google.com DWORD bufferSize = GetFontData(hdc, tables[i], 0, NULL, 0); 196539698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (bufferSize == GDI_ERROR) { 1966055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com call_ensure_accessible(lf); 196739698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com bufferSize = GetFontData(hdc, tables[i], 0, NULL, 0); 196839698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 1969d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org if (bufferSize != GDI_ERROR) { 1970d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org stream = new SkMemoryStream(bufferSize); 19714b18f5767ab1df7fedf0ff2e3a9eac7f7c500c36bungeman@google.com if (GetFontData(hdc, tables[i], 0, (void*)stream->getMemoryBase(), bufferSize)) { 1972d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org break; 1973d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org } else { 1974d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org delete stream; 1975d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org stream = NULL; 1976d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org } 1977d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org } 1978ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1979ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1980ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SelectObject(hdc, savefont); 1981ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteObject(font); 1982ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteDC(hdc); 1983ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1984ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return stream; 1985ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1986ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 19873c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.comstatic void bmpCharsToGlyphs(HDC hdc, const WCHAR* bmpChars, int count, uint16_t* glyphs, 19883c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com bool Ox1FHack) 19893c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com{ 19903c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com DWORD result = GetGlyphIndicesW(hdc, bmpChars, count, glyphs, GGI_MARK_NONEXISTING_GLYPHS); 19913c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (GDI_ERROR == result) { 19923c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com for (int i = 0; i < count; ++i) { 19933c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com glyphs[i] = 0; 19943c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 19953c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com return; 19963c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 19973c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 19983c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (Ox1FHack) { 19993c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com for (int i = 0; i < count; ++i) { 20003c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (0xFFFF == glyphs[i] || 0x1F == glyphs[i]) { 20013c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com glyphs[i] = 0; 20023c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 20033c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 20043c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } else { 20053c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com for (int i = 0; i < count; ++i) { 20063c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (0xFFFF == glyphs[i]){ 20073c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com glyphs[i] = 0; 20083c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 20093c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 20103c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 20113c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com} 20123c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 20133c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.comstatic uint16_t nonBmpCharToGlyph(HDC hdc, SCRIPT_CACHE* scriptCache, const WCHAR utf16[2]) { 20143c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com uint16_t index = 0; 20153c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com // Use uniscribe to detemine glyph index for non-BMP characters. 20163c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com static const int numWCHAR = 2; 20173c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com static const int maxItems = 2; 20183c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com // MSDN states that this can be NULL, but some things don't work then. 20193c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com SCRIPT_CONTROL scriptControl = { 0 }; 20203c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com // Add extra item to SCRIPT_ITEM to work around a bug (now documented). 20213c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com // https://bugzilla.mozilla.org/show_bug.cgi?id=366643 20223c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com SCRIPT_ITEM si[maxItems + 1]; 20233c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com int numItems; 20243c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com HRZM(ScriptItemize(utf16, numWCHAR, maxItems, &scriptControl, NULL, si, &numItems), 20253c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com "Could not itemize character."); 20263c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 20273c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com // Sometimes ScriptShape cannot find a glyph for a non-BMP and returns 2 space glyphs. 20283c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com static const int maxGlyphs = 2; 20293c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com SCRIPT_VISATTR vsa[maxGlyphs]; 20303c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com WORD outGlyphs[maxGlyphs]; 20313c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com WORD logClust[numWCHAR]; 20323c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com int numGlyphs; 20333c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com HRZM(ScriptShape(hdc, scriptCache, utf16, numWCHAR, maxGlyphs, &si[0].a, 20343c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com outGlyphs, logClust, vsa, &numGlyphs), 20353c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com "Could not shape character."); 20363c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (1 == numGlyphs) { 20373c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com index = outGlyphs[0]; 20383c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 20393c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com return index; 20403c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com} 20413c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 20423c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.comclass SkAutoHDC { 20433c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.compublic: 20443c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com SkAutoHDC(const LOGFONT& lf) 20453c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com : fHdc(::CreateCompatibleDC(NULL)) 20463c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com , fFont(::CreateFontIndirect(&lf)) 20473c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com , fSavefont((HFONT)SelectObject(fHdc, fFont)) 20483c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com { } 20493c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com ~SkAutoHDC() { 20503c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com SelectObject(fHdc, fSavefont); 20513c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com DeleteObject(fFont); 20523c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com DeleteDC(fHdc); 20533c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 20543c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com operator HDC() { return fHdc; } 20553c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.comprivate: 20563c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com HDC fHdc; 20573c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com HFONT fFont; 20583c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com HFONT fSavefont; 20593c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com}; 2060e61a86cfa00ea393ecc4a71fca94e1d476a37ecccommit-bot@chromium.org#define SkAutoHDC(...) SK_REQUIRE_LOCAL_VAR(SkAutoHDC) 20613c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 20623c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.comint LogFontTypeface::onCharsToGlyphs(const void* chars, Encoding encoding, 20633c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com uint16_t userGlyphs[], int glyphCount) const 20643c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com{ 20653c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com SkAutoHDC hdc(fLogFont); 20663c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 20673c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com TEXTMETRIC tm; 20683c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (0 == GetTextMetrics(hdc, &tm)) { 20693c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com call_ensure_accessible(fLogFont); 20703c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (0 == GetTextMetrics(hdc, &tm)) { 20713c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com tm.tmPitchAndFamily = TMPF_TRUETYPE; 20723c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 20733c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 20743c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com bool Ox1FHack = !(tm.tmPitchAndFamily & TMPF_VECTOR) /*&& winVer < Vista */; 20753c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 20763c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com SkAutoSTMalloc<256, uint16_t> scratchGlyphs; 20773c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com uint16_t* glyphs; 20783c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (userGlyphs != NULL) { 20793c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com glyphs = userGlyphs; 20803c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } else { 20813c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com glyphs = scratchGlyphs.reset(glyphCount); 20823c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 20833c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 20843c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com SCRIPT_CACHE sc = 0; 20853c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com switch (encoding) { 20863c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com case SkTypeface::kUTF8_Encoding: { 20873c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com static const int scratchCount = 256; 20883c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com WCHAR scratch[scratchCount]; 20893c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com int glyphIndex = 0; 20903c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com const char* currentUtf8 = reinterpret_cast<const char*>(chars); 20913c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com SkUnichar currentChar; 20923c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (glyphCount) { 20933c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com currentChar = SkUTF8_NextUnichar(¤tUtf8); 20943c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 20953c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com while (glyphIndex < glyphCount) { 20963c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com // Try a run of bmp. 20973c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com int glyphsLeft = SkTMin(glyphCount - glyphIndex, scratchCount); 20983c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com int runLength = 0; 20993c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com while (runLength < glyphsLeft && currentChar <= 0xFFFF) { 21003c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com scratch[runLength] = static_cast<WCHAR>(currentChar); 21013c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com ++runLength; 21023c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (runLength < glyphsLeft) { 21033c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com currentChar = SkUTF8_NextUnichar(¤tUtf8); 21043c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21053c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21063c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (runLength) { 21073c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com bmpCharsToGlyphs(hdc, scratch, runLength, &glyphs[glyphIndex], Ox1FHack); 21083c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com glyphIndex += runLength; 21093c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21103c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 21113c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com // Try a run of non-bmp. 21123c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com while (glyphIndex < glyphCount && currentChar > 0xFFFF) { 21133c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com SkUTF16_FromUnichar(currentChar, reinterpret_cast<uint16_t*>(scratch)); 21143c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com glyphs[glyphIndex] = nonBmpCharToGlyph(hdc, &sc, scratch); 21153c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com ++glyphIndex; 21163c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (glyphIndex < glyphCount) { 21173c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com currentChar = SkUTF8_NextUnichar(¤tUtf8); 21183c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21193c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21203c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21213c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com break; 21223c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21233c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com case SkTypeface::kUTF16_Encoding: { 21243c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com int glyphIndex = 0; 21253c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com const WCHAR* currentUtf16 = reinterpret_cast<const WCHAR*>(chars); 21263c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com while (glyphIndex < glyphCount) { 21273c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com // Try a run of bmp. 21283c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com int glyphsLeft = glyphCount - glyphIndex; 21293c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com int runLength = 0; 21303c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com while (runLength < glyphsLeft && !SkUTF16_IsHighSurrogate(currentUtf16[runLength])) { 21313c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com ++runLength; 21323c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21333c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (runLength) { 21343c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com bmpCharsToGlyphs(hdc, currentUtf16, runLength, &glyphs[glyphIndex], Ox1FHack); 21353c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com glyphIndex += runLength; 21363c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com currentUtf16 += runLength; 21373c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21383c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 21393c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com // Try a run of non-bmp. 21403c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com while (glyphIndex < glyphCount && SkUTF16_IsHighSurrogate(*currentUtf16)) { 21413c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com glyphs[glyphIndex] = nonBmpCharToGlyph(hdc, &sc, currentUtf16); 21423c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com ++glyphIndex; 21433c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com currentUtf16 += 2; 21443c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21453c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21463c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com break; 21473c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21483c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com case SkTypeface::kUTF32_Encoding: { 21493c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com static const int scratchCount = 256; 21503c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com WCHAR scratch[scratchCount]; 21513c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com int glyphIndex = 0; 21523c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com const uint32_t* utf32 = reinterpret_cast<const uint32_t*>(chars); 21533c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com while (glyphIndex < glyphCount) { 21543c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com // Try a run of bmp. 21553c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com int glyphsLeft = SkTMin(glyphCount - glyphIndex, scratchCount); 21563c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com int runLength = 0; 21573c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com while (runLength < glyphsLeft && utf32[glyphIndex + runLength] <= 0xFFFF) { 21583c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com scratch[runLength] = static_cast<WCHAR>(utf32[glyphIndex + runLength]); 21593c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com ++runLength; 21603c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21613c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (runLength) { 21623c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com bmpCharsToGlyphs(hdc, scratch, runLength, &glyphs[glyphIndex], Ox1FHack); 21633c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com glyphIndex += runLength; 21643c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21653c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 21663c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com // Try a run of non-bmp. 21673c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com while (glyphIndex < glyphCount && utf32[glyphIndex] > 0xFFFF) { 21683c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com SkUTF16_FromUnichar(utf32[glyphIndex], reinterpret_cast<uint16_t*>(scratch)); 21693c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com glyphs[glyphIndex] = nonBmpCharToGlyph(hdc, &sc, scratch); 21703c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com ++glyphIndex; 21713c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21723c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21733c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com break; 21743c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21753c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com default: 21763c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com SK_CRASH(); 21773c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21783c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 21793c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (sc) { 21803c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com ::ScriptFreeCache(&sc); 21813c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21823c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 21833c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com for (int i = 0; i < glyphCount; ++i) { 21843c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (0 == glyphs[i]) { 21853c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com return i; 21863c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21873c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21883c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com return glyphCount; 21893c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com} 21903c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 21917bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.comint LogFontTypeface::onCountGlyphs() const { 21927bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com HDC hdc = ::CreateCompatibleDC(NULL); 21937bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com HFONT font = CreateFontIndirect(&fLogFont); 21947bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com HFONT savefont = (HFONT)SelectObject(hdc, font); 21957bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 21967bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com unsigned int glyphCount = calculateGlyphCount(hdc, fLogFont); 21977bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 21987bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com SelectObject(hdc, savefont); 21997bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com DeleteObject(font); 22007bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com DeleteDC(hdc); 22017bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 22027bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com return glyphCount; 22037bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com} 22047bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 22057bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.comint LogFontTypeface::onGetUPEM() const { 22067bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com HDC hdc = ::CreateCompatibleDC(NULL); 22077bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com HFONT font = CreateFontIndirect(&fLogFont); 22087bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com HFONT savefont = (HFONT)SelectObject(hdc, font); 22097bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 22107bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com unsigned int upem = calculateUPEM(hdc, fLogFont); 22117bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 22127bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com SelectObject(hdc, savefont); 22137bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com DeleteObject(font); 22147bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com DeleteDC(hdc); 22157bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 22167bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com return upem; 22177bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com} 22187bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 2219839702b61934914118ec557dd641be322eba3b5fbungeman@google.comSkTypeface::LocalizedStrings* LogFontTypeface::onCreateFamilyNameIterator() const { 2220a980269c2498836101146adc729ef780fb89824ebungeman@google.com SkTypeface::LocalizedStrings* nameIter = 2221a980269c2498836101146adc729ef780fb89824ebungeman@google.com SkOTUtils::LocalizedStrings_NameTable::CreateForFamilyNames(*this); 2222a980269c2498836101146adc729ef780fb89824ebungeman@google.com if (NULL == nameIter) { 2223a980269c2498836101146adc729ef780fb89824ebungeman@google.com SkString familyName; 2224a980269c2498836101146adc729ef780fb89824ebungeman@google.com this->getFamilyName(&familyName); 2225a980269c2498836101146adc729ef780fb89824ebungeman@google.com SkString language("und"); //undetermined 2226a980269c2498836101146adc729ef780fb89824ebungeman@google.com nameIter = new SkOTUtils::LocalizedStrings_SingleName(familyName, language); 2227a980269c2498836101146adc729ef780fb89824ebungeman@google.com } 2228a980269c2498836101146adc729ef780fb89824ebungeman@google.com return nameIter; 2229a980269c2498836101146adc729ef780fb89824ebungeman@google.com} 2230a980269c2498836101146adc729ef780fb89824ebungeman@google.com 2231b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.comint LogFontTypeface::onGetTableTags(SkFontTableTag tags[]) const { 2232b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com SkSFNTHeader header; 2233b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com if (sizeof(header) != this->onGetTableData(0, 0, sizeof(header), &header)) { 2234b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com return 0; 2235b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com } 2236b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com 2237b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com int numTables = SkEndian_SwapBE16(header.numTables); 2238b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com 2239b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com if (tags) { 2240b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com size_t size = numTables * sizeof(SkSFNTHeader::TableDirectoryEntry); 2241b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com SkAutoSTMalloc<0x20, SkSFNTHeader::TableDirectoryEntry> dir(numTables); 2242b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com if (size != this->onGetTableData(0, sizeof(header), size, dir.get())) { 2243b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com return 0; 2244b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com } 2245b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com 2246b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com for (int i = 0; i < numTables; ++i) { 2247b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com tags[i] = SkEndian_SwapBE32(dir[i].tag); 2248b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com } 2249b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com } 2250b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com return numTables; 2251b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com} 2252b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com 2253b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.comsize_t LogFontTypeface::onGetTableData(SkFontTableTag tag, size_t offset, 2254b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com size_t length, void* data) const 2255b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com{ 2256b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com LOGFONT lf = fLogFont; 2257b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com 2258b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com HDC hdc = ::CreateCompatibleDC(NULL); 2259b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com HFONT font = CreateFontIndirect(&lf); 2260b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com HFONT savefont = (HFONT)SelectObject(hdc, font); 2261b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com 2262b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com tag = SkEndian_SwapBE32(tag); 2263b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com if (NULL == data) { 2264b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com length = 0; 2265b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com } 22668b169311b59ab84e8ca6f3630a1e960cc1be751erobertphillips@google.com DWORD bufferSize = GetFontData(hdc, tag, (DWORD) offset, data, (DWORD) length); 2267b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com if (bufferSize == GDI_ERROR) { 2268b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com call_ensure_accessible(lf); 22698b169311b59ab84e8ca6f3630a1e960cc1be751erobertphillips@google.com bufferSize = GetFontData(hdc, tag, (DWORD) offset, data, (DWORD) length); 2270b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com } 2271b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com 2272b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com SelectObject(hdc, savefont); 2273b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com DeleteObject(font); 2274b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com DeleteDC(hdc); 2275b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com 2276b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com return bufferSize == GDI_ERROR ? 0 : bufferSize; 2277b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com} 2278b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com 22790da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.comSkScalerContext* LogFontTypeface::onCreateScalerContext(const SkDescriptor* desc) const { 228030ddd615c447fed73286151b463af20d309c85f1reed@google.com SkScalerContext_GDI* ctx = SkNEW_ARGS(SkScalerContext_GDI, 228184e22d847fc84727bc220947162363ee1fe068fcreed@google.com (const_cast<LogFontTypeface*>(this), desc)); 228284e22d847fc84727bc220947162363ee1fe068fcreed@google.com if (!ctx->isValid()) { 228384e22d847fc84727bc220947162363ee1fe068fcreed@google.com SkDELETE(ctx); 228484e22d847fc84727bc220947162363ee1fe068fcreed@google.com ctx = NULL; 228584e22d847fc84727bc220947162363ee1fe068fcreed@google.com } 228684e22d847fc84727bc220947162363ee1fe068fcreed@google.com return ctx; 2287ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 2288ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 22890da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.comvoid LogFontTypeface::onFilterRec(SkScalerContextRec* rec) const { 2290c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org if (rec->fFlags & SkScalerContext::kLCD_BGROrder_Flag || 2291c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org rec->fFlags & SkScalerContext::kLCD_Vertical_Flag) 2292c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org { 2293c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org rec->fMaskFormat = SkMask::kA8_Format; 2294c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org rec->fFlags |= SkScalerContext::kGenA8FromLCD_Flag; 2295c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org } 2296c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org 2297410780677af260e32948b02c0725ef6ad761260cbungeman unsigned flagsWeDontSupport = SkScalerContext::kVertical_Flag | 2298410780677af260e32948b02c0725ef6ad761260cbungeman SkScalerContext::kDevKernText_Flag | 2299f6f56878bc96386882721b15ba610984185d3dc9bungeman@google.com SkScalerContext::kForceAutohinting_Flag | 2300e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kEmbeddedBitmapText_Flag | 2301e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kEmbolden_Flag | 2302e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kLCD_BGROrder_Flag | 2303e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kLCD_Vertical_Flag; 2304e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com rec->fFlags &= ~flagsWeDontSupport; 2305e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com 2306e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkPaint::Hinting h = rec->getHinting(); 2307e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com switch (h) { 2308e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kNo_Hinting: 23090abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com break; 2310e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kSlight_Hinting: 23110abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // Only do slight hinting when axis aligned. 23127c86d8eb3a61eae188bc8af2cd0363858eaea07ebungeman@google.com // TODO: re-enable slight hinting when FontHostTest can pass. 23137c86d8eb3a61eae188bc8af2cd0363858eaea07ebungeman@google.com //if (!isAxisAligned(*rec)) { 23140abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com h = SkPaint::kNo_Hinting; 23157c86d8eb3a61eae188bc8af2cd0363858eaea07ebungeman@google.com //} 2316e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com break; 2317e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kNormal_Hinting: 2318e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kFull_Hinting: 23190abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // TODO: need to be able to distinguish subpixel positioned glyphs 23200abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // and linear metrics. 23210abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com //rec->fFlags &= ~SkScalerContext::kSubpixelPositioning_Flag; 2322e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com h = SkPaint::kNormal_Hinting; 2323e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com break; 2324e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com default: 23250c00f21fee3f5cfa3aa7e5d46ff94cb8cf340451tomhudson@google.com SkDEBUGFAIL("unknown hinting"); 2326e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com } 23270abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com //TODO: if this is a bitmap font, squash hinting and subpixel. 2328e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com rec->setHinting(h); 2329da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com 23309181aa84aa288d2bc3ab079b6b40a79ac87d8807reed@google.com// turn this off since GDI might turn A8 into BW! Need a bigger fix. 23319181aa84aa288d2bc3ab079b6b40a79ac87d8807reed@google.com#if 0 2332da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com // Disable LCD when rotated, since GDI's output is ugly 2333da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com if (isLCD(*rec) && !isAxisAligned(*rec)) { 2334da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com rec->fMaskFormat = SkMask::kA8_Format; 2335da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com } 23369181aa84aa288d2bc3ab079b6b40a79ac87d8807reed@google.com#endif 2337754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com 23380da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.com if (!fCanBeLCD && isLCD(*rec)) { 2339cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com rec->fMaskFormat = SkMask::kA8_Format; 2340cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com rec->fFlags &= ~SkScalerContext::kGenA8FromLCD_Flag; 2341754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } 2342754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com} 2343070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.com 2344070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.com/////////////////////////////////////////////////////////////////////////////// 2345070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.com 2346070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.com#include "SkFontMgr.h" 2347484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com#include "SkDataTable.h" 2348484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2349a980269c2498836101146adc729ef780fb89824ebungeman@google.comstatic bool valid_logfont_for_enum(const LOGFONT& lf) { 2350a980269c2498836101146adc729ef780fb89824ebungeman@google.com // TODO: Vector FON is unsupported and should not be listed. 2351a980269c2498836101146adc729ef780fb89824ebungeman@google.com return 2352a980269c2498836101146adc729ef780fb89824ebungeman@google.com // Ignore implicit vertical variants. 2353a980269c2498836101146adc729ef780fb89824ebungeman@google.com lf.lfFaceName[0] && lf.lfFaceName[0] != '@' 2354a980269c2498836101146adc729ef780fb89824ebungeman@google.com 2355a980269c2498836101146adc729ef780fb89824ebungeman@google.com // DEFAULT_CHARSET is used to get all fonts, but also implies all 2356a980269c2498836101146adc729ef780fb89824ebungeman@google.com // character sets. Filter assuming all fonts support ANSI_CHARSET. 2357a980269c2498836101146adc729ef780fb89824ebungeman@google.com && ANSI_CHARSET == lf.lfCharSet 2358a980269c2498836101146adc729ef780fb89824ebungeman@google.com ; 2359a980269c2498836101146adc729ef780fb89824ebungeman@google.com} 2360a980269c2498836101146adc729ef780fb89824ebungeman@google.com 2361a980269c2498836101146adc729ef780fb89824ebungeman@google.com/** An EnumFontFamExProc implementation which interprets builderParam as 2362a980269c2498836101146adc729ef780fb89824ebungeman@google.com * an SkTDArray<ENUMLOGFONTEX>* and appends logfonts which 2363a980269c2498836101146adc729ef780fb89824ebungeman@google.com * pass the valid_logfont_for_enum predicate. 2364a980269c2498836101146adc729ef780fb89824ebungeman@google.com */ 2365a980269c2498836101146adc729ef780fb89824ebungeman@google.comstatic int CALLBACK enum_family_proc(const LOGFONT* lf, const TEXTMETRIC*, 2366a980269c2498836101146adc729ef780fb89824ebungeman@google.com DWORD fontType, LPARAM builderParam) { 2367a980269c2498836101146adc729ef780fb89824ebungeman@google.com if (valid_logfont_for_enum(*lf)) { 2368a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com SkTDArray<ENUMLOGFONTEX>* array = (SkTDArray<ENUMLOGFONTEX>*)builderParam; 2369a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com *array->append() = *(ENUMLOGFONTEX*)lf; 2370484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2371484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return 1; // non-zero means continue 2372484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com} 2373484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2374484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comclass SkFontStyleSetGDI : public SkFontStyleSet { 2375484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.compublic: 2376a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com SkFontStyleSetGDI(const TCHAR familyName[]) { 2377a980269c2498836101146adc729ef780fb89824ebungeman@google.com LOGFONT lf; 2378a980269c2498836101146adc729ef780fb89824ebungeman@google.com sk_bzero(&lf, sizeof(lf)); 2379a980269c2498836101146adc729ef780fb89824ebungeman@google.com lf.lfCharSet = DEFAULT_CHARSET; 2380a980269c2498836101146adc729ef780fb89824ebungeman@google.com _tcscpy_s(lf.lfFaceName, familyName); 2381a980269c2498836101146adc729ef780fb89824ebungeman@google.com 2382484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com HDC hdc = ::CreateCompatibleDC(NULL); 2383a980269c2498836101146adc729ef780fb89824ebungeman@google.com ::EnumFontFamiliesEx(hdc, &lf, enum_family_proc, (LPARAM)&fArray, 0); 2384484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ::DeleteDC(hdc); 2385484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2386484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 238736352bf5e38f45a70ee4f4fc132a38048d38206dmtklein int count() override { 2388484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return fArray.count(); 2389484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2390484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 239136352bf5e38f45a70ee4f4fc132a38048d38206dmtklein void getStyle(int index, SkFontStyle* fs, SkString* styleName) override { 2392484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com if (fs) { 2393a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungeman *fs = get_style(fArray[index].elfLogFont); 2394a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com } 2395a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com if (styleName) { 2396a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com const ENUMLOGFONTEX& ref = fArray[index]; 2397a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com // For some reason, ENUMLOGFONTEX and LOGFONT disagree on their type in the 2398a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com // non-unicode version. 2399a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com // ENUMLOGFONTEX uses BYTE 2400a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com // LOGFONT uses CHAR 2401a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com // Here we assert they that the style name is logically the same (size) as 2402a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com // a TCHAR, so we can use the same converter function. 2403a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com SkASSERT(sizeof(TCHAR) == sizeof(ref.elfStyle[0])); 2404a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com tchar_to_skstring((const TCHAR*)ref.elfStyle, styleName); 2405484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2406484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2407484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 240836352bf5e38f45a70ee4f4fc132a38048d38206dmtklein SkTypeface* createTypeface(int index) override { 2409a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com return SkCreateTypefaceFromLOGFONT(fArray[index].elfLogFont); 2410484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2411484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 241236352bf5e38f45a70ee4f4fc132a38048d38206dmtklein SkTypeface* matchStyle(const SkFontStyle& pattern) override { 2413484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com // todo: 2414a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com return SkCreateTypefaceFromLOGFONT(fArray[0].elfLogFont); 2415484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2416484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2417484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comprivate: 2418a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com SkTDArray<ENUMLOGFONTEX> fArray; 2419484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com}; 2420484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2421484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comclass SkFontMgrGDI : public SkFontMgr { 2422a980269c2498836101146adc729ef780fb89824ebungeman@google.compublic: 2423a980269c2498836101146adc729ef780fb89824ebungeman@google.com SkFontMgrGDI() { 2424484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com LOGFONT lf; 2425484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com sk_bzero(&lf, sizeof(lf)); 2426484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com lf.lfCharSet = DEFAULT_CHARSET; 2427484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2428484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com HDC hdc = ::CreateCompatibleDC(NULL); 2429484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ::EnumFontFamiliesEx(hdc, &lf, enum_family_proc, (LPARAM)&fLogFontArray, 0); 2430484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ::DeleteDC(hdc); 2431484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2432484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2433484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comprotected: 243436352bf5e38f45a70ee4f4fc132a38048d38206dmtklein int onCountFamilies() const override { 2435484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return fLogFontArray.count(); 2436484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2437484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 243836352bf5e38f45a70ee4f4fc132a38048d38206dmtklein void onGetFamilyName(int index, SkString* familyName) const override { 2439484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com SkASSERT((unsigned)index < (unsigned)fLogFontArray.count()); 2440a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com tchar_to_skstring(fLogFontArray[index].elfLogFont.lfFaceName, familyName); 2441484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2442484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 244336352bf5e38f45a70ee4f4fc132a38048d38206dmtklein SkFontStyleSet* onCreateStyleSet(int index) const override { 2444484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com SkASSERT((unsigned)index < (unsigned)fLogFontArray.count()); 2445a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com return SkNEW_ARGS(SkFontStyleSetGDI, (fLogFontArray[index].elfLogFont.lfFaceName)); 2446484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2447484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 244836352bf5e38f45a70ee4f4fc132a38048d38206dmtklein SkFontStyleSet* onMatchFamily(const char familyName[]) const override { 2449484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com if (NULL == familyName) { 2450484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com familyName = ""; // do we need this check??? 2451484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2452484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com LOGFONT lf; 2453484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com logfont_for_name(familyName, &lf); 2454a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com return SkNEW_ARGS(SkFontStyleSetGDI, (lf.lfFaceName)); 2455484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2456484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2457484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual SkTypeface* onMatchFamilyStyle(const char familyName[], 245836352bf5e38f45a70ee4f4fc132a38048d38206dmtklein const SkFontStyle& fontstyle) const override { 2459437eea160b2f605d9074106891288e85baaecfefreed@google.com // could be in base impl 2460484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com SkAutoTUnref<SkFontStyleSet> sset(this->matchFamily(familyName)); 2461484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return sset->matchStyle(fontstyle); 2462484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2463484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 246433068c19f1b8c18f000c18935ad11f1082534b5adjsollen virtual SkTypeface* onMatchFamilyStyleCharacter(const char familyName[], const SkFontStyle&, 246533068c19f1b8c18f000c18935ad11f1082534b5adjsollen const char* bcp47[], int bcp47Count, 246636352bf5e38f45a70ee4f4fc132a38048d38206dmtklein SkUnichar character) const override { 246733068c19f1b8c18f000c18935ad11f1082534b5adjsollen return NULL; 246833068c19f1b8c18f000c18935ad11f1082534b5adjsollen } 246933068c19f1b8c18f000c18935ad11f1082534b5adjsollen 2470484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual SkTypeface* onMatchFaceStyle(const SkTypeface* familyMember, 247136352bf5e38f45a70ee4f4fc132a38048d38206dmtklein const SkFontStyle& fontstyle) const override { 2472437eea160b2f605d9074106891288e85baaecfefreed@google.com // could be in base impl 2473484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com SkString familyName; 2474484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ((LogFontTypeface*)familyMember)->getFamilyName(&familyName); 2475484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return this->matchFamilyStyle(familyName.c_str(), fontstyle); 2476484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2477484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 247836352bf5e38f45a70ee4f4fc132a38048d38206dmtklein SkTypeface* onCreateFromStream(SkStreamAsset* bareStream, int ttcIndex) const override { 24795f213d9627d2eefa7da81cd97f36754f75eb4ae9bungeman SkAutoTDelete<SkStreamAsset> stream(bareStream); 2480437eea160b2f605d9074106891288e85baaecfefreed@google.com return create_from_stream(stream); 2481484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2482437eea160b2f605d9074106891288e85baaecfefreed@google.com 248336352bf5e38f45a70ee4f4fc132a38048d38206dmtklein SkTypeface* onCreateFromData(SkData* data, int ttcIndex) const override { 2484437eea160b2f605d9074106891288e85baaecfefreed@google.com // could be in base impl 2485a1193e4b0e34a7e4e1bd33e9708d7341679f8321scroggo return this->createFromStream(SkNEW_ARGS(SkMemoryStream, (data))); 2486484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2487437eea160b2f605d9074106891288e85baaecfefreed@google.com 248836352bf5e38f45a70ee4f4fc132a38048d38206dmtklein SkTypeface* onCreateFromFile(const char path[], int ttcIndex) const override { 2489437eea160b2f605d9074106891288e85baaecfefreed@google.com // could be in base impl 2490a1193e4b0e34a7e4e1bd33e9708d7341679f8321scroggo return this->createFromStream(SkStream::NewFromFile(path)); 2491484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2492484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 249330ddd615c447fed73286151b463af20d309c85f1reed@google.com virtual SkTypeface* onLegacyCreateTypeface(const char familyName[], 249436352bf5e38f45a70ee4f4fc132a38048d38206dmtklein unsigned styleBits) const override { 2495f7159bba8efc13f6b3a9a86e92b48451b6aa8073bungeman@google.com LOGFONT lf; 2496f7159bba8efc13f6b3a9a86e92b48451b6aa8073bungeman@google.com if (NULL == familyName) { 2497f7159bba8efc13f6b3a9a86e92b48451b6aa8073bungeman@google.com lf = get_default_font(); 2498f7159bba8efc13f6b3a9a86e92b48451b6aa8073bungeman@google.com } else { 2499f7159bba8efc13f6b3a9a86e92b48451b6aa8073bungeman@google.com logfont_for_name(familyName, &lf); 2500f7159bba8efc13f6b3a9a86e92b48451b6aa8073bungeman@google.com } 2501a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungeman 2502a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungeman SkTypeface::Style style = (SkTypeface::Style)styleBits; 2503a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungeman lf.lfWeight = (style & SkTypeface::kBold) != 0 ? FW_BOLD : FW_NORMAL; 2504a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungeman lf.lfItalic = ((style & SkTypeface::kItalic) != 0); 2505f7159bba8efc13f6b3a9a86e92b48451b6aa8073bungeman@google.com return SkCreateTypefaceFromLOGFONT(lf); 250630ddd615c447fed73286151b463af20d309c85f1reed@google.com } 250730ddd615c447fed73286151b463af20d309c85f1reed@google.com 2508484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comprivate: 2509a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com SkTDArray<ENUMLOGFONTEX> fLogFontArray; 2510484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com}; 2511070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.com 251230ddd615c447fed73286151b463af20d309c85f1reed@google.com/////////////////////////////////////////////////////////////////////////////// 251330ddd615c447fed73286151b463af20d309c85f1reed@google.com 2514bfc6cc4b6c41e99d3887d268fbf798aa3abc9a27bungeman@google.comSkFontMgr* SkFontMgr_New_GDI() { 2515484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return SkNEW(SkFontMgrGDI); 2516070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.com} 2517