SkFontHost_win.cpp revision f6f56878bc96386882721b15ba610984185d3dc9
1ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com 2ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com/* 3ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com * Copyright 2006 The Android Open Source Project 4ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com * 5ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com * Use of this source code is governed by a BSD-style license that can be 6ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com * found in the LICENSE file. 7ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com */ 8ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 9ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkAdvancedTypefaceMetrics.h" 10a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include "SkBase64.h" 111bfe01d06b896eca94c80d9af9a6bb30216b5e42bungeman@google.com#include "SkColorPriv.h" 12a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include "SkData.h" 13a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include "SkDescriptor.h" 14e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com#include "SkFontDescriptor.h" 15a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include "SkFontHost.h" 16bbe50131413098bffed9186660c41f047d881596bungeman@google.com#include "SkGlyph.h" 1727f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com#include "SkHRESULT.h" 1897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com#include "SkMaskGamma.h" 197bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com#include "SkOTTable_maxp.h" 20a980269c2498836101146adc729ef780fb89824ebungeman@google.com#include "SkOTTable_name.h" 21a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include "SkOTUtils.h" 2227889877c0e3c909dd4afd7b5e7b1d58cbf61ae6reed@google.com#include "SkPath.h" 23b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com#include "SkSFNTHeader.h" 24ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkStream.h" 25a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include "SkString.h" 2605a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com#include "SkTemplates.h" 27ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkThread.h" 28ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkTypeface_win.h" 2959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com#include "SkTypefaceCache.h" 30ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkUtils.h" 31ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 32a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include "SkTypes.h" 33a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include <tchar.h> 34a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include <usp10.h> 35a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include <objbase.h> 36ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 37f210f505ffffccc15ae5e91f8ccb9763ba7fc152reed@google.comstatic void (*gEnsureLOGFONTAccessibleProc)(const LOGFONT&); 38f210f505ffffccc15ae5e91f8ccb9763ba7fc152reed@google.com 39f210f505ffffccc15ae5e91f8ccb9763ba7fc152reed@google.comvoid SkTypeface_SetEnsureLOGFONTAccessibleProc(void (*proc)(const LOGFONT&)) { 40f210f505ffffccc15ae5e91f8ccb9763ba7fc152reed@google.com gEnsureLOGFONTAccessibleProc = proc; 41f210f505ffffccc15ae5e91f8ccb9763ba7fc152reed@google.com} 42f210f505ffffccc15ae5e91f8ccb9763ba7fc152reed@google.com 43055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.comstatic void call_ensure_accessible(const LOGFONT& lf) { 44055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com if (gEnsureLOGFONTAccessibleProc) { 45055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com gEnsureLOGFONTAccessibleProc(lf); 46055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com } 47055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com} 48055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com 49055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com/////////////////////////////////////////////////////////////////////////////// 50055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com 516f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com// always packed xxRRGGBB 526f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.comtypedef uint32_t SkGdiRGB; 536f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com 54a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com// define this in your Makefile or .gyp to enforce AA requests 55a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com// which GDI ignores at small sizes. This flag guarantees AA 56a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com// for rotated text, regardless of GDI's notions. 57a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com//#define SK_ENFORCE_ROTATED_TEXT_AA_ON_WINDOWS 58a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 5982a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.comstatic bool isLCD(const SkScalerContext::Rec& rec) { 6082a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com return SkMask::kLCD16_Format == rec.fMaskFormat || 6182a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com SkMask::kLCD32_Format == rec.fMaskFormat; 6282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com} 6382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 64a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.comstatic bool bothZero(SkScalar a, SkScalar b) { 65a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com return 0 == a && 0 == b; 66a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com} 67a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 68a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com// returns false if there is any non-90-rotation or skew 69a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.comstatic bool isAxisAligned(const SkScalerContext::Rec& rec) { 70a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com return 0 == rec.fPreSkewX && 71a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com (bothZero(rec.fPost2x2[0][1], rec.fPost2x2[1][0]) || 72a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com bothZero(rec.fPost2x2[0][0], rec.fPost2x2[1][1])); 73a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com} 74a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 75a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.comstatic bool needToRenderWithSkia(const SkScalerContext::Rec& rec) { 76a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com#ifdef SK_ENFORCE_ROTATED_TEXT_AA_ON_WINDOWS 77a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // What we really want to catch is when GDI will ignore the AA request and give 78a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // us BW instead. Smallish rotated text is one heuristic, so this code is just 79a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // an approximation. We shouldn't need to do this for larger sizes, but at those 80a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // sizes, the quality difference gets less and less between our general 81a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // scanconverter and GDI's. 82a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com if (SkMask::kA8_Format == rec.fMaskFormat && !isAxisAligned(rec)) { 83a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com return true; 84a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com } 85a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com#endif 860abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return rec.getHinting() == SkPaint::kNo_Hinting || rec.getHinting() == SkPaint::kSlight_Hinting; 87a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com} 88a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 89ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comusing namespace skia_advanced_typeface_metrics_utils; 90ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 91a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.comstatic void tchar_to_skstring(const TCHAR t[], SkString* s) { 92484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com#ifdef UNICODE 93484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com size_t sSize = WideCharToMultiByte(CP_UTF8, 0, t, -1, NULL, 0, NULL, NULL); 94484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com s->resize(sSize); 95484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com WideCharToMultiByte(CP_UTF8, 0, t, -1, s->writable_str(), sSize, NULL, NULL); 96484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com#else 97484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com s->set(t); 98484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com#endif 99484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com} 100484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 101a980269c2498836101146adc729ef780fb89824ebungeman@google.comstatic void dcfontname_to_skstring(HDC deviceContext, const LOGFONT& lf, SkString* familyName) { 102a980269c2498836101146adc729ef780fb89824ebungeman@google.com int fontNameLen; //length of fontName in TCHARS. 103a980269c2498836101146adc729ef780fb89824ebungeman@google.com if (0 == (fontNameLen = GetTextFace(deviceContext, 0, NULL))) { 104a980269c2498836101146adc729ef780fb89824ebungeman@google.com call_ensure_accessible(lf); 105a980269c2498836101146adc729ef780fb89824ebungeman@google.com if (0 == (fontNameLen = GetTextFace(deviceContext, 0, NULL))) { 106a980269c2498836101146adc729ef780fb89824ebungeman@google.com fontNameLen = 0; 107a980269c2498836101146adc729ef780fb89824ebungeman@google.com } 108a980269c2498836101146adc729ef780fb89824ebungeman@google.com } 109a980269c2498836101146adc729ef780fb89824ebungeman@google.com 110a980269c2498836101146adc729ef780fb89824ebungeman@google.com SkAutoSTArray<LF_FULLFACESIZE, TCHAR> fontName(fontNameLen+1); 111a980269c2498836101146adc729ef780fb89824ebungeman@google.com if (0 == GetTextFace(deviceContext, fontNameLen, fontName.get())) { 112a980269c2498836101146adc729ef780fb89824ebungeman@google.com call_ensure_accessible(lf); 113a980269c2498836101146adc729ef780fb89824ebungeman@google.com if (0 == GetTextFace(deviceContext, fontNameLen, fontName.get())) { 114a980269c2498836101146adc729ef780fb89824ebungeman@google.com fontName[0] = 0; 115a980269c2498836101146adc729ef780fb89824ebungeman@google.com } 116a980269c2498836101146adc729ef780fb89824ebungeman@google.com } 117a980269c2498836101146adc729ef780fb89824ebungeman@google.com 118a980269c2498836101146adc729ef780fb89824ebungeman@google.com tchar_to_skstring(fontName.get(), familyName); 119a980269c2498836101146adc729ef780fb89824ebungeman@google.com} 120a980269c2498836101146adc729ef780fb89824ebungeman@google.com 121ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic void make_canonical(LOGFONT* lf) { 12253cbb0baac09e60e7633c15301a29a83afb1a8debungeman@google.com lf->lfHeight = -64; 12359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf->lfQuality = CLEARTYPE_QUALITY;//PROOF_QUALITY; 12459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf->lfCharSet = DEFAULT_CHARSET; 12582a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com// lf->lfClipPrecision = 64; 12659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com} 12759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 12890d812b77ab025d5fd01dab904287f5c5bf56228bungeman@google.comstatic SkTypeface::Style get_style(const LOGFONT& lf) { 12959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com unsigned style = 0; 13059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com if (lf.lfWeight >= FW_BOLD) { 13159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com style |= SkTypeface::kBold; 13259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } 13359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com if (lf.lfItalic) { 13459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com style |= SkTypeface::kItalic; 13559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } 13690d812b77ab025d5fd01dab904287f5c5bf56228bungeman@google.com return static_cast<SkTypeface::Style>(style); 13759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com} 13859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 13959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.comstatic void setStyle(LOGFONT* lf, SkTypeface::Style style) { 14059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf->lfWeight = (style & SkTypeface::kBold) != 0 ? FW_BOLD : FW_NORMAL ; 14159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf->lfItalic = ((style & SkTypeface::kItalic) != 0); 142ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 143ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 144ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic inline FIXED SkFixedToFIXED(SkFixed x) { 145ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return *(FIXED*)(&x); 146ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 147a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.comstatic inline SkFixed SkFIXEDToFixed(FIXED x) { 148a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com return *(SkFixed*)(&x); 149a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com} 150ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 151ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic inline FIXED SkScalarToFIXED(SkScalar x) { 152ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkFixedToFIXED(SkScalarToFixed(x)); 153ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 154ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1554732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.comstatic inline SkScalar SkFIXEDToScalar(FIXED x) { 1564732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com return SkFixedToScalar(SkFIXEDToFixed(x)); 1574732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com} 1584732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com 1597bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.comstatic unsigned calculateGlyphCount(HDC hdc, const LOGFONT& lf) { 1607bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com TEXTMETRIC textMetric; 1617bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com if (0 == GetTextMetrics(hdc, &textMetric)) { 1627bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com textMetric.tmPitchAndFamily = TMPF_VECTOR; 1637bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com call_ensure_accessible(lf); 1647bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com GetTextMetrics(hdc, &textMetric); 1657bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com } 1667bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 1677bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com if (!(textMetric.tmPitchAndFamily & TMPF_VECTOR)) { 1687bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com return textMetric.tmLastChar; 1697bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com } 1707bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 171ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // The 'maxp' table stores the number of glyphs at offset 4, in 2 bytes. 172ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com uint16_t glyphs; 1737bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com if (GDI_ERROR != GetFontData(hdc, SkOTTableMaximumProfile::TAG, 4, &glyphs, sizeof(glyphs))) { 174ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkEndian_SwapBE16(glyphs); 175ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1765aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org 177ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Binary search for glyph count. 178ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com static const MAT2 mat2 = {{0, 1}, {0, 0}, {0, 0}, {0, 1}}; 179ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int32_t max = SK_MaxU16 + 1; 180ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int32_t min = 0; 181ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com GLYPHMETRICS gm; 182ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com while (min < max) { 183ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int32_t mid = min + ((max - min) / 2); 184ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (GetGlyphOutlineW(hdc, mid, GGO_METRICS | GGO_GLYPH_INDEX, &gm, 0, 185ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com NULL, &mat2) == GDI_ERROR) { 186ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com max = mid; 187ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 188ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com min = mid + 1; 189ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 190ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 191ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(min == max); 192ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return min; 193ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 194ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1957bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.comstatic unsigned calculateUPEM(HDC hdc, const LOGFONT& lf) { 1967bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com TEXTMETRIC textMetric; 1977bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com if (0 == GetTextMetrics(hdc, &textMetric)) { 1987bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com textMetric.tmPitchAndFamily = TMPF_VECTOR; 1997bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com call_ensure_accessible(lf); 2007bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com GetTextMetrics(hdc, &textMetric); 2017bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com } 2027bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 2037bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com if (!(textMetric.tmPitchAndFamily & TMPF_VECTOR)) { 2047bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com return textMetric.tmMaxCharWidth; 2057bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com } 2067bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 2077bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com OUTLINETEXTMETRIC otm; 2087bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com unsigned int otmRet = GetOutlineTextMetrics(hdc, sizeof(otm), &otm); 2097bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com if (0 == otmRet) { 2107bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com call_ensure_accessible(lf); 2117bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com otmRet = GetOutlineTextMetrics(hdc, sizeof(otm), &otm); 2127bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com } 2137bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 2147bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com return (0 == otmRet) ? 0 : otm.otmEMSquare; 2157bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com} 2167bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 217ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comclass LogFontTypeface : public SkTypeface { 218ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.compublic: 219cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com LogFontTypeface(SkTypeface::Style style, SkFontID fontID, const LOGFONT& lf, bool serializeAsStream = false) : 220cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com SkTypeface(style, fontID, false), fLogFont(lf), fSerializeAsStream(serializeAsStream) { 221cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com 222cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com // If the font has cubic outlines, it will not be rendered with ClearType. 223cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com HFONT font = CreateFontIndirect(&lf); 224cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com 225cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com HDC deviceContext = ::CreateCompatibleDC(NULL); 226cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com HFONT savefont = (HFONT)SelectObject(deviceContext, font); 227cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com 228cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com TEXTMETRIC textMetric; 229cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com if (0 == GetTextMetrics(deviceContext, &textMetric)) { 230055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com call_ensure_accessible(lf); 231cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com if (0 == GetTextMetrics(deviceContext, &textMetric)) { 232cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com textMetric.tmPitchAndFamily = TMPF_TRUETYPE; 233cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com } 234cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com } 235cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com if (deviceContext) { 236cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com ::SelectObject(deviceContext, savefont); 237cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com ::DeleteDC(deviceContext); 238cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com } 239cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com if (font) { 240cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com ::DeleteObject(font); 241cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com } 242cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com 243fe74765f0d302669ae49e68074492bdfe0ce6e6fbungeman@google.com // The fixed pitch bit is set if the font is *not* fixed pitch. 244fe74765f0d302669ae49e68074492bdfe0ce6e6fbungeman@google.com this->setIsFixedPitch((textMetric.tmPitchAndFamily & TMPF_FIXED_PITCH) == 0); 245fe74765f0d302669ae49e68074492bdfe0ce6e6fbungeman@google.com 246cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com // Used a logfont on a memory context, should never get a device font. 247cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com // Therefore all TMPF_DEVICE will be PostScript (cubic) fonts. 248cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com fCanBeLCD = !((textMetric.tmPitchAndFamily & TMPF_VECTOR) && 249cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com (textMetric.tmPitchAndFamily & TMPF_DEVICE)); 250cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com } 251ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 25259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LOGFONT fLogFont; 253e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com bool fSerializeAsStream; 254cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com bool fCanBeLCD; 255ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 25659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com static LogFontTypeface* Create(const LOGFONT& lf) { 25790d812b77ab025d5fd01dab904287f5c5bf56228bungeman@google.com SkTypeface::Style style = get_style(lf); 25859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com SkFontID fontID = SkTypefaceCache::NewFontID(); 25959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com return new LogFontTypeface(style, fontID, lf); 260ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 2610da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.com 262055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com static void EnsureAccessible(const SkTypeface* face) { 263055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com call_ensure_accessible(static_cast<const LogFontTypeface*>(face)->fLogFont); 264055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com } 265055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com 2660da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.comprotected: 2670042b9c2a2e6fe954cdfbcd5a5b7449cdf41a4c3reed@google.com virtual SkStream* onOpenStream(int* ttcIndex) const SK_OVERRIDE; 2680da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.com virtual SkScalerContext* onCreateScalerContext(const SkDescriptor*) const SK_OVERRIDE; 2690da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.com virtual void onFilterRec(SkScalerContextRec*) const SK_OVERRIDE; 2702689f615e364dc48ad73826564f5b13d2329179dreed@google.com virtual SkAdvancedTypefaceMetrics* onGetAdvancedTypefaceMetrics( 2712689f615e364dc48ad73826564f5b13d2329179dreed@google.com SkAdvancedTypefaceMetrics::PerGlyphInfo, 2722689f615e364dc48ad73826564f5b13d2329179dreed@google.com const uint32_t*, uint32_t) const SK_OVERRIDE; 2735526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.com virtual void onGetFontDescriptor(SkFontDescriptor*, bool*) const SK_OVERRIDE; 2743c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com virtual int onCharsToGlyphs(const void* chars, Encoding encoding, 2753c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com uint16_t glyphs[], int glyphCount) const SK_OVERRIDE; 2767bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com virtual int onCountGlyphs() const SK_OVERRIDE; 2777bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com virtual int onGetUPEM() const SK_OVERRIDE; 278839702b61934914118ec557dd641be322eba3b5fbungeman@google.com virtual SkTypeface::LocalizedStrings* onCreateFamilyNameIterator() const SK_OVERRIDE; 279b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com virtual int onGetTableTags(SkFontTableTag tags[]) const SK_OVERRIDE; 280b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com virtual size_t onGetTableData(SkFontTableTag, size_t offset, 281b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com size_t length, void* data) const SK_OVERRIDE; 282ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com}; 283ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 284a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comclass FontMemResourceTypeface : public LogFontTypeface { 285a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.compublic: 286a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com /** 287a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com * Takes ownership of fontMemResource. 288a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 289a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com FontMemResourceTypeface(SkTypeface::Style style, SkFontID fontID, const LOGFONT& lf, HANDLE fontMemResource) : 290cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com LogFontTypeface(style, fontID, lf, true), fFontMemResource(fontMemResource) { 291e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com } 292a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 293a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com HANDLE fFontMemResource; 294a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 295a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com /** 296a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com * The created FontMemResourceTypeface takes ownership of fontMemResource. 297a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 298a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com static FontMemResourceTypeface* Create(const LOGFONT& lf, HANDLE fontMemResource) { 299a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com SkTypeface::Style style = get_style(lf); 300a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com SkFontID fontID = SkTypefaceCache::NewFontID(); 301a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return new FontMemResourceTypeface(style, fontID, lf, fontMemResource); 302a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 303a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 304a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comprotected: 305a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com virtual void weak_dispose() const SK_OVERRIDE { 306a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com RemoveFontMemResourceEx(fFontMemResource); 307a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com //SkTypefaceCache::Remove(this); 308a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com INHERITED::weak_dispose(); 309a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 310a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 311a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comprivate: 312a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com typedef LogFontTypeface INHERITED; 313a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com}; 314a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 315ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic const LOGFONT& get_default_font() { 316ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com static LOGFONT gDefaultFont; 317ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return gDefaultFont; 318ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 319ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 32059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.comstatic bool FindByLogFont(SkTypeface* face, SkTypeface::Style requestedStyle, void* ctx) { 321a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com LogFontTypeface* lface = static_cast<LogFontTypeface*>(face); 32259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com const LOGFONT* lf = reinterpret_cast<const LOGFONT*>(ctx); 323ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 324a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return lface && 325a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com get_style(lface->fLogFont) == requestedStyle && 32659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com !memcmp(&lface->fLogFont, lf, sizeof(LOGFONT)); 32759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com} 32859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 32959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com/** 33059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com * This guy is public. It first searches the cache, and if a match is not found, 33159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com * it creates a new face. 33259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com */ 33359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.comSkTypeface* SkCreateTypefaceFromLOGFONT(const LOGFONT& origLF) { 33459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LOGFONT lf = origLF; 33559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com make_canonical(&lf); 336ee51d1a6e43615ae640410013c36d2d9873e6aa5bungeman@google.com SkTypeface* face = SkTypefaceCache::FindByProcAndRef(FindByLogFont, &lf); 337ee51d1a6e43615ae640410013c36d2d9873e6aa5bungeman@google.com if (NULL == face) { 33859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com face = LogFontTypeface::Create(lf); 33990d812b77ab025d5fd01dab904287f5c5bf56228bungeman@google.com SkTypefaceCache::Add(face, get_style(lf)); 34059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } 34159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com return face; 342ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 343ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 344db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com/** 345a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com * The created SkTypeface takes ownership of fontMemResource. 346a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 347a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comSkTypeface* SkCreateFontMemResourceTypefaceFromLOGFONT(const LOGFONT& origLF, HANDLE fontMemResource) { 348a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com LOGFONT lf = origLF; 349a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com make_canonical(&lf); 350a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com FontMemResourceTypeface* face = FontMemResourceTypeface::Create(lf, fontMemResource); 351a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com SkTypefaceCache::Add(face, get_style(lf), false); 352a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return face; 353a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com} 354a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 355a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 356db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com * This guy is public 357db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com */ 358db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.comvoid SkLOGFONTFromTypeface(const SkTypeface* face, LOGFONT* lf) { 359db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com if (NULL == face) { 360db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com *lf = get_default_font(); 361db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com } else { 362a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com *lf = static_cast<const LogFontTypeface*>(face)->fLogFont; 363db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com } 364db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com} 365db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com 3666744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// Construct Glyph to Unicode table. 3676744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// Unicode code points that require conjugate pairs in utf16 are not 3686744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// supported. 3696744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// TODO(arthurhsu): Add support for conjugate pairs. It looks like that may 3706744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// require parsing the TTF cmap table (platform 4, encoding 12) directly instead 3716744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// of calling GetFontUnicodeRange(). 3726744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.orgstatic void populate_glyph_to_unicode(HDC fontHdc, const unsigned glyphCount, 3736744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkTDArray<SkUnichar>* glyphToUnicode) { 3746744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org DWORD glyphSetBufferSize = GetFontUnicodeRanges(fontHdc, NULL); 3756744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org if (!glyphSetBufferSize) { 3766744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org return; 3776744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 3786744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 3796744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkAutoTDeleteArray<BYTE> glyphSetBuffer(new BYTE[glyphSetBufferSize]); 3806744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org GLYPHSET* glyphSet = 3816744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org reinterpret_cast<LPGLYPHSET>(glyphSetBuffer.get()); 3826744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org if (GetFontUnicodeRanges(fontHdc, glyphSet) != glyphSetBufferSize) { 3836744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org return; 3846744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 3856744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 3866744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org glyphToUnicode->setCount(glyphCount); 3876744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org memset(glyphToUnicode->begin(), 0, glyphCount * sizeof(SkUnichar)); 3886744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org for (DWORD i = 0; i < glyphSet->cRanges; ++i) { 3896744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // There is no guarantee that within a Unicode range, the corresponding 3906744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // glyph id in a font file are continuous. So, even if we have ranges, 3916744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // we can't just use the first and last entry of the range to compute 3926744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // result. We need to enumerate them one by one. 3936744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org int count = glyphSet->ranges[i].cGlyphs; 3946744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkAutoTArray<WCHAR> chars(count + 1); 3956744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org chars[count] = 0; // termintate string 3966744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkAutoTArray<WORD> glyph(count); 3976744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org for (USHORT j = 0; j < count; ++j) { 3986744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org chars[j] = glyphSet->ranges[i].wcLow + j; 3996744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 4006744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org GetGlyphIndicesW(fontHdc, chars.get(), count, glyph.get(), 4016744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org GGI_MARK_NONEXISTING_GLYPHS); 4026744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // If the glyph ID is valid, and the glyph is not mapped, then we will 4036744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // fill in the char id into the vector. If the glyph is mapped already, 4046744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // skip it. 4056744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // TODO(arthurhsu): better improve this. e.g. Get all used char ids from 4066744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // font cache, then generate this mapping table from there. It's 4076744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // unlikely to have collisions since glyph reuse happens mostly for 4086744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // different Unicode pages. 4096744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org for (USHORT j = 0; j < count; ++j) { 4106744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org if (glyph[j] != 0xffff && glyph[j] < glyphCount && 4116744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org (*glyphToUnicode)[glyph[j]] == 0) { 4126744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org (*glyphToUnicode)[glyph[j]] = chars[j]; 4136744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 4146744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 4156744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 4166744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org} 4176744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 41899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com////////////////////////////////////////////////////////////////////////////////////// 41999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 42099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.comstatic int alignTo32(int n) { 42199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com return (n + 31) & ~31; 42299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com} 42399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 42499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.comstruct MyBitmapInfo : public BITMAPINFO { 42599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com RGBQUAD fMoreSpaceForColors[1]; 42699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com}; 42799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 42899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.comclass HDCOffscreen { 42999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.compublic: 43099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HDCOffscreen() { 43199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fFont = 0; 43299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fDC = 0; 43399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fBM = 0; 43499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fBits = NULL; 43599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fWidth = fHeight = 0; 43699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fIsBW = false; 43799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 43899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 43999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com ~HDCOffscreen() { 44099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (fDC) { 44199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com DeleteDC(fDC); 44299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 44399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (fBM) { 44499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com DeleteObject(fBM); 44599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 44699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 44799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 44899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com void init(HFONT font, const XFORM& xform) { 44999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fFont = font; 45099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fXform = xform; 45199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 45299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 45397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const void* draw(const SkGlyph&, bool isBW, size_t* srcRBPtr); 45499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 45599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.comprivate: 45699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HDC fDC; 45799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HBITMAP fBM; 45899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HFONT fFont; 45999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com XFORM fXform; 46099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com void* fBits; // points into fBM 46199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com int fWidth; 46299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com int fHeight; 46399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com bool fIsBW; 46499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com}; 46599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 466754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.comconst void* HDCOffscreen::draw(const SkGlyph& glyph, bool isBW, 46797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com size_t* srcRBPtr) { 46884e22d847fc84727bc220947162363ee1fe068fcreed@google.com // Can we share the scalercontext's fDDC, so we don't need to create 46984e22d847fc84727bc220947162363ee1fe068fcreed@google.com // a separate fDC here? 47099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (0 == fDC) { 47199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fDC = CreateCompatibleDC(0); 47299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (0 == fDC) { 47399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com return NULL; 47499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 47599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SetGraphicsMode(fDC, GM_ADVANCED); 47699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SetBkMode(fDC, TRANSPARENT); 47799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SetTextAlign(fDC, TA_LEFT | TA_BASELINE); 47899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SelectObject(fDC, fFont); 47997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com 48097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com COLORREF color = 0x00FFFFFF; 481b58a639b2fbe919489654bb506efdb024a308a8ebsalomon@google.com SkDEBUGCODE(COLORREF prev =) SetTextColor(fDC, color); 48297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com SkASSERT(prev != CLR_INVALID); 48399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 48499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 48599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (fBM && (fIsBW != isBW || fWidth < glyph.fWidth || fHeight < glyph.fHeight)) { 48699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com DeleteObject(fBM); 48799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fBM = 0; 48899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 489754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com fIsBW = isBW; 49099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 49199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fWidth = SkMax32(fWidth, glyph.fWidth); 49299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fHeight = SkMax32(fHeight, glyph.fHeight); 49399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 49499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com int biWidth = isBW ? alignTo32(fWidth) : fWidth; 49599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 49699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (0 == fBM) { 49799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com MyBitmapInfo info; 49899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com sk_bzero(&info, sizeof(info)); 49999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (isBW) { 50099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com RGBQUAD blackQuad = { 0, 0, 0, 0 }; 50199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com RGBQUAD whiteQuad = { 0xFF, 0xFF, 0xFF, 0 }; 50299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiColors[0] = blackQuad; 50399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiColors[1] = whiteQuad; 50499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 50599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biSize = sizeof(info.bmiHeader); 50699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biWidth = biWidth; 50799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biHeight = fHeight; 50899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biPlanes = 1; 50999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biBitCount = isBW ? 1 : 32; 51099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biCompression = BI_RGB; 51199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (isBW) { 51299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biClrUsed = 2; 51399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 51499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fBM = CreateDIBSection(fDC, &info, DIB_RGB_COLORS, &fBits, 0, 0); 51599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (0 == fBM) { 51699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com return NULL; 51799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 51899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SelectObject(fDC, fBM); 51999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 52099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 52199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com // erase 52299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com size_t srcRB = isBW ? (biWidth >> 3) : (fWidth << 2); 52399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com size_t size = fHeight * srcRB; 52497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com memset(fBits, 0, size); 52599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 52699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com XFORM xform = fXform; 52799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com xform.eDx = (float)-glyph.fLeft; 52899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com xform.eDy = (float)-glyph.fTop; 52999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SetWorldTransform(fDC, &xform); 53099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 53199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com uint16_t glyphID = glyph.getGlyphID(); 53239698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com BOOL ret = ExtTextOutW(fDC, 0, 0, ETO_GLYPH_INDEX, NULL, reinterpret_cast<LPCWSTR>(&glyphID), 1, NULL); 53399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com GdiFlush(); 53439698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (0 == ret) { 53539698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com return NULL; 53639698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 53799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com *srcRBPtr = srcRB; 53899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com // offset to the start of the image 53999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com return (const char*)fBits + (fHeight - glyph.fHeight) * srcRB; 54099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com} 54199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 542b8a5c618d2e18d71707ae4dcafbe5153d7ff427freed@google.com////////////////////////////////////////////////////////////////////////////// 5430abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#define BUFFERSIZE (1 << 13) 54459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 54530ddd615c447fed73286151b463af20d309c85f1reed@google.comclass SkScalerContext_GDI : public SkScalerContext { 546ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.compublic: 54730ddd615c447fed73286151b463af20d309c85f1reed@google.com SkScalerContext_GDI(SkTypeface*, const SkDescriptor* desc); 54830ddd615c447fed73286151b463af20d309c85f1reed@google.com virtual ~SkScalerContext_GDI(); 549ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 55084e22d847fc84727bc220947162363ee1fe068fcreed@google.com // Returns true if the constructor was able to complete all of its 55184e22d847fc84727bc220947162363ee1fe068fcreed@google.com // initializations (which may include calling GDI). 55284e22d847fc84727bc220947162363ee1fe068fcreed@google.com bool isValid() const; 55384e22d847fc84727bc220947162363ee1fe068fcreed@google.com 554ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comprotected: 55597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com virtual unsigned generateGlyphCount() SK_OVERRIDE; 55697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com virtual uint16_t generateCharToGlyph(SkUnichar uni) SK_OVERRIDE; 55797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com virtual void generateAdvance(SkGlyph* glyph) SK_OVERRIDE; 55897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com virtual void generateMetrics(SkGlyph* glyph) SK_OVERRIDE; 559a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com virtual void generateImage(const SkGlyph& glyph) SK_OVERRIDE; 56097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com virtual void generatePath(const SkGlyph& glyph, SkPath* path) SK_OVERRIDE; 561a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com virtual void generateFontMetrics(SkPaint::FontMetrics* mX, 562a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com SkPaint::FontMetrics* mY) SK_OVERRIDE; 56399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 564ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comprivate: 5650abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com DWORD getGDIGlyphPath(const SkGlyph& glyph, UINT flags, 5660abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkAutoSTMalloc<BUFFERSIZE, uint8_t>* glyphbuf); 5670abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 56899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HDCOffscreen fOffscreen; 5690abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com /** fGsA is the non-rotational part of total matrix without the text height scale. 5700abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com * Used to find the magnitude of advances. 5710abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com */ 5720abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com MAT2 fGsA; 5736a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com /** The total matrix without the textSize. */ 574ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com MAT2 fMat22; 5756a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com /** Scales font to EM size. */ 5766a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com MAT2 fHighResMat22; 577ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HDC fDDC; 578ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT fSavefont; 579ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT fFont; 580ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SCRIPT_CACHE fSC; 581ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int fGlyphCount; 5821dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 5836a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com /** The total matrix which also removes EM scale. */ 5841dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com SkMatrix fHiResMatrix; 5850abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com /** fG_inv is the inverse of the rotational part of the total matrix. 5860abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com * Used to set the direction of advances. 5870abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com */ 5880abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkMatrix fG_inv; 589a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com enum Type { 5904732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com kTrueType_Type, kBitmap_Type, kLine_Type 591a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } fType; 592a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com TEXTMETRIC fTM; 593ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com}; 594ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 595ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic FIXED float2FIXED(float x) { 596ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkFixedToFIXED(SkFloatToFixed(x)); 597ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 598ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 59982a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.comstatic BYTE compute_quality(const SkScalerContext::Rec& rec) { 60082a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com switch (rec.fMaskFormat) { 60182a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com case SkMask::kBW_Format: 60282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com return NONANTIALIASED_QUALITY; 60382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com case SkMask::kLCD16_Format: 60482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com case SkMask::kLCD32_Format: 60582a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com return CLEARTYPE_QUALITY; 60682a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com default: 6078351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com if (rec.fFlags & SkScalerContext::kGenA8FromLCD_Flag) { 6088351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com return CLEARTYPE_QUALITY; 6098351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com } else { 6108351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com return ANTIALIASED_QUALITY; 6118351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com } 61282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com } 61382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com} 61482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 61530ddd615c447fed73286151b463af20d309c85f1reed@google.comSkScalerContext_GDI::SkScalerContext_GDI(SkTypeface* rawTypeface, 6160da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.com const SkDescriptor* desc) 617055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com : SkScalerContext(rawTypeface, desc) 618055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com , fDDC(0) 619055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com , fSavefont(0) 62084e22d847fc84727bc220947162363ee1fe068fcreed@google.com , fFont(0) 621055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com , fSC(0) 62205a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com , fGlyphCount(-1) 62305a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com{ 624055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com LogFontTypeface* typeface = reinterpret_cast<LogFontTypeface*>(rawTypeface); 625055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com 626ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fDDC = ::CreateCompatibleDC(NULL); 62784e22d847fc84727bc220947162363ee1fe068fcreed@google.com if (!fDDC) { 62884e22d847fc84727bc220947162363ee1fe068fcreed@google.com return; 62984e22d847fc84727bc220947162363ee1fe068fcreed@google.com } 6301dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com SetGraphicsMode(fDDC, GM_ADVANCED); 631ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SetBkMode(fDDC, TRANSPARENT); 63227e21fe577211c1c40cbf40d0385b02c69d04522skia.committer@gmail.com 6330abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkPoint h = SkPoint::Make(SK_Scalar1, 0); 6340abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // A is the total matrix. 6350abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkMatrix A; 6360abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fRec.getSingleMatrix(&A); 6370abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com A.mapPoints(&h, 1); 6380abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 6390abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // Find the Given's matrix [[c, -s],[s, c]] which rotates the baseline vector h 6400abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // (where the baseline is mapped to) to the positive horizontal axis. 6410abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const SkScalar& a = h.fX; 6420abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const SkScalar& b = h.fY; 6430abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkScalar c, s; 6440abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (0 == b) { 6450abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com c = SkDoubleToScalar(_copysign(SK_Scalar1, a)); 6460abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com s = 0; 6470abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } else if (0 == a) { 6480abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com c = 0; 6490abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com s = SkDoubleToScalar(-_copysign(SK_Scalar1, b)); 6500abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } else if (SkScalarAbs(b) > SkScalarAbs(a)) { 6510abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkScalar t = a / b; 6520abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkScalar u = SkDoubleToScalar(_copysign(SkScalarSqrt(SK_Scalar1 + t*t), b)); 6530abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com s = -1 / u; 6540abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com c = -s * t; 6550abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } else { 6560abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkScalar t = b / a; 6570abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkScalar u = SkDoubleToScalar(_copysign(SkScalarSqrt(SK_Scalar1 + t*t), a)); 6580abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com c = 1 / u; 6590abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com s = -c * t; 6600abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 6610abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 6620abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // G is the Given's Matrix for A (rotational matrix such that GA[0][1] == 0). 6630abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkMatrix G; 6640abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com G.setAll(c, -s, 0, 6650abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com s, c, 0, 6660abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 0, 0, SkScalarToPersp(SK_Scalar1)); 6670abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 6680abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // GA is the matrix A with rotation removed. 6690abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkMatrix GA(G); 6700abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GA.preConcat(A); 6710abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 67211ba3199f3edc7883ada4fd941d231f8f4883720bungeman@google.com // realTextSize is the actual device size we want (as opposed to the size the user requested). 67311ba3199f3edc7883ada4fd941d231f8f4883720bungeman@google.com // gdiTextSide is the size we request from GDI. 6740abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // If the scale is negative, this means the matrix will do the flip anyway. 67511ba3199f3edc7883ada4fd941d231f8f4883720bungeman@google.com SkScalar realTextSize = SkScalarAbs(GA.get(SkMatrix::kMScaleY)); 67611ba3199f3edc7883ada4fd941d231f8f4883720bungeman@google.com SkScalar gdiTextSize = SkScalarRoundToScalar(realTextSize); 67711ba3199f3edc7883ada4fd941d231f8f4883720bungeman@google.com if (gdiTextSize == 0) { 67811ba3199f3edc7883ada4fd941d231f8f4883720bungeman@google.com gdiTextSize = SK_Scalar1; 6790abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 6800abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 68111ba3199f3edc7883ada4fd941d231f8f4883720bungeman@google.com // When not hinting, remove only the gdiTextSize scale which will be applied by GDI. 68211ba3199f3edc7883ada4fd941d231f8f4883720bungeman@google.com // When GDI hinting, remove the entire Y scale to prevent 'subpixel' metrics. 68311ba3199f3edc7883ada4fd941d231f8f4883720bungeman@google.com SkScalar scale = (fRec.getHinting() == SkPaint::kNo_Hinting || 68411ba3199f3edc7883ada4fd941d231f8f4883720bungeman@google.com fRec.getHinting() == SkPaint::kSlight_Hinting) 68511ba3199f3edc7883ada4fd941d231f8f4883720bungeman@google.com ? SkScalarInvert(gdiTextSize) 68611ba3199f3edc7883ada4fd941d231f8f4883720bungeman@google.com : SkScalarInvert(realTextSize); 68711ba3199f3edc7883ada4fd941d231f8f4883720bungeman@google.com 6880abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // sA is the total matrix A without the textSize (so GDI knows the text size separately). 6890abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // When this matrix is used with GetGlyphOutline, no further processing is needed. 6900abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkMatrix sA(A); 6910abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com sA.preScale(scale, scale); //remove text size 6920abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 6930abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // GsA is the non-rotational part of A without the text height scale. 6940abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // This is what is used to find the magnitude of advances. 6950abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkMatrix GsA(GA); 6960abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GsA.preScale(scale, scale); //remove text size, G is rotational so reorders with the scale. 6970abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 6980abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fGsA.eM11 = SkScalarToFIXED(GsA.get(SkMatrix::kMScaleX)); 6990abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fGsA.eM12 = SkScalarToFIXED(-GsA.get(SkMatrix::kMSkewY)); // This should be ~0. 7000abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fGsA.eM21 = SkScalarToFIXED(-GsA.get(SkMatrix::kMSkewX)); 7010abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fGsA.eM22 = SkScalarToFIXED(GsA.get(SkMatrix::kMScaleY)); 7020abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 7030abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // fG_inv is G inverse, which is fairly simple since G is 2x2 rotational. 7040abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fG_inv.setAll(G.get(SkMatrix::kMScaleX), -G.get(SkMatrix::kMSkewX), G.get(SkMatrix::kMTransX), 7050abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com -G.get(SkMatrix::kMSkewY), G.get(SkMatrix::kMScaleY), G.get(SkMatrix::kMTransY), 7060abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com G.get(SkMatrix::kMPersp0), G.get(SkMatrix::kMPersp1), G.get(SkMatrix::kMPersp2)); 707ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 708055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com LOGFONT lf = typeface->fLogFont; 70911ba3199f3edc7883ada4fd941d231f8f4883720bungeman@google.com lf.lfHeight = -SkScalarTruncToInt(gdiTextSize); 71082a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com lf.lfQuality = compute_quality(fRec); 711ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fFont = CreateFontIndirect(&lf); 71284e22d847fc84727bc220947162363ee1fe068fcreed@google.com if (!fFont) { 71384e22d847fc84727bc220947162363ee1fe068fcreed@google.com return; 71484e22d847fc84727bc220947162363ee1fe068fcreed@google.com } 7151dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 716ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fSavefont = (HFONT)SelectObject(fDDC, fFont); 717a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 718a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (0 == GetTextMetrics(fDDC, &fTM)) { 719055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com call_ensure_accessible(lf); 720a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (0 == GetTextMetrics(fDDC, &fTM)) { 721a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fTM.tmPitchAndFamily = TMPF_TRUETYPE; 722a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 723a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 72490b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com 725d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com XFORM xform; 72690b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com if (fTM.tmPitchAndFamily & TMPF_VECTOR) { 7274732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com // Used a logfont on a memory context, should never get a device font. 7284732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com // Therefore all TMPF_DEVICE will be PostScript fonts. 7294732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com 7304732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com // If TMPF_VECTOR is set, one of TMPF_TRUETYPE or TMPF_DEVICE means that 7314732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com // we have an outline font. Otherwise we have a vector FON, which is 7324732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com // scalable, but not an outline font. 7334732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com // This was determined by testing with Type1 PFM/PFB and 7344732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com // OpenTypeCFF OTF, as well as looking at Wine bugs and sources. 7354732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com if (fTM.tmPitchAndFamily & (TMPF_TRUETYPE | TMPF_DEVICE)) { 7364732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com // Truetype or PostScript. 7374732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com fType = SkScalerContext_GDI::kTrueType_Type; 7384732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com } else { 7394732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com // Stroked FON. 7404732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com fType = SkScalerContext_GDI::kLine_Type; 7414732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com } 742a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 743d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // fPost2x2 is column-major, left handed (y down). 744d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // XFORM 2x2 is row-major, left handed (y down). 7450abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com xform.eM11 = SkScalarToFloat(sA.get(SkMatrix::kMScaleX)); 7460abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com xform.eM12 = SkScalarToFloat(sA.get(SkMatrix::kMSkewY)); 7470abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com xform.eM21 = SkScalarToFloat(sA.get(SkMatrix::kMSkewX)); 7480abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com xform.eM22 = SkScalarToFloat(sA.get(SkMatrix::kMScaleY)); 749d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eDx = 0; 750d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eDy = 0; 751d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com 752d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // MAT2 is row major, right handed (y up). 753d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM11 = float2FIXED(xform.eM11); 754d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM12 = float2FIXED(-xform.eM12); 755d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM21 = float2FIXED(-xform.eM21); 756d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM22 = float2FIXED(xform.eM22); 757a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 758a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (needToRenderWithSkia(fRec)) { 759a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com this->forceGenerateImageFromPath(); 760a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 761a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 76211ba3199f3edc7883ada4fd941d231f8f4883720bungeman@google.com // Create a hires matrix if we need linear metrics. 7630abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (this->isSubpixel()) { 7640abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com OUTLINETEXTMETRIC otm; 7650abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com UINT success = GetOutlineTextMetrics(fDDC, sizeof(otm), &otm); 7660abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (0 == success) { 7670abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com call_ensure_accessible(lf); 7680abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com success = GetOutlineTextMetrics(fDDC, sizeof(otm), &otm); 7690abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 7700abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (0 != success) { 77111ba3199f3edc7883ada4fd941d231f8f4883720bungeman@google.com SkScalar upem = SkIntToScalar(otm.otmEMSquare); 7726a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com 77311ba3199f3edc7883ada4fd941d231f8f4883720bungeman@google.com SkScalar gdiTextSizeToEMScale = upem / gdiTextSize; 77411ba3199f3edc7883ada4fd941d231f8f4883720bungeman@google.com fHighResMat22.eM11 = float2FIXED(gdiTextSizeToEMScale); 7756a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com fHighResMat22.eM12 = float2FIXED(0); 7766a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com fHighResMat22.eM21 = float2FIXED(0); 77711ba3199f3edc7883ada4fd941d231f8f4883720bungeman@google.com fHighResMat22.eM22 = float2FIXED(gdiTextSizeToEMScale); 7786a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com 77911ba3199f3edc7883ada4fd941d231f8f4883720bungeman@google.com SkScalar removeEMScale = SkScalarInvert(upem); 7806a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com fHiResMatrix = A; 78111ba3199f3edc7883ada4fd941d231f8f4883720bungeman@google.com fHiResMatrix.preScale(removeEMScale, removeEMScale); 7820abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 7830abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 7840abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 785a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } else { 786a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com // Assume bitmap 78730ddd615c447fed73286151b463af20d309c85f1reed@google.com fType = SkScalerContext_GDI::kBitmap_Type; 788a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 789d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM11 = 1.0f; 790d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM12 = 0.0f; 791d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM21 = 0.0f; 792d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM22 = 1.0f; 793d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eDx = 0.0f; 794d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eDy = 0.0f; 795a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 796d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // fPost2x2 is column-major, left handed (y down). 797d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // MAT2 is row major, right handed (y up). 798a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fMat22.eM11 = SkScalarToFIXED(fRec.fPost2x2[0][0]); 799d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM12 = SkScalarToFIXED(-fRec.fPost2x2[1][0]); 800a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fMat22.eM21 = SkScalarToFIXED(-fRec.fPost2x2[0][1]); 801d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM22 = SkScalarToFIXED(fRec.fPost2x2[1][1]); 802a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com } 80399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 804d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fOffscreen.init(fFont, xform); 805ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 806ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 80730ddd615c447fed73286151b463af20d309c85f1reed@google.comSkScalerContext_GDI::~SkScalerContext_GDI() { 808ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fDDC) { 809ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::SelectObject(fDDC, fSavefont); 810ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::DeleteDC(fDDC); 811ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 812ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fFont) { 813ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::DeleteObject(fFont); 814ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 815ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fSC) { 816ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::ScriptFreeCache(&fSC); 817ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 818ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 819ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 82030ddd615c447fed73286151b463af20d309c85f1reed@google.combool SkScalerContext_GDI::isValid() const { 82184e22d847fc84727bc220947162363ee1fe068fcreed@google.com return fDDC && fFont; 82284e22d847fc84727bc220947162363ee1fe068fcreed@google.com} 82384e22d847fc84727bc220947162363ee1fe068fcreed@google.com 82430ddd615c447fed73286151b463af20d309c85f1reed@google.comunsigned SkScalerContext_GDI::generateGlyphCount() { 825ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fGlyphCount < 0) { 8267bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com fGlyphCount = calculateGlyphCount( 8277bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com fDDC, static_cast<const LogFontTypeface*>(this->getTypeface())->fLogFont); 828ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 829ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return fGlyphCount; 830ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 831ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 83233346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.comuint16_t SkScalerContext_GDI::generateCharToGlyph(SkUnichar utf32) { 833ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com uint16_t index = 0; 83433346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com WCHAR utf16[2]; 835ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // TODO(ctguil): Support characters that generate more than one glyph. 83633346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com if (SkUTF16_FromUnichar(utf32, (uint16_t*)utf16) == 1) { 837ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Type1 fonts fail with uniscribe API. Use GetGlyphIndices for plane 0. 8387bd141dce43ea3405bc60c9c84e6f910b851b079skia.committer@gmail.com 83933346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com /** Real documentation for GetGlyphIndiciesW: 84033346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com * 84133346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com * When GGI_MARK_NONEXISTING_GLYPHS is not specified and a character does not map to a 84233346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com * glyph, then the 'default character's glyph is returned instead. The 'default character' 8434732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com * is available in fTM.tmDefaultChar. FON fonts have a default character, and there exists 8444732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com * a usDefaultChar in the 'OS/2' table, version 2 and later. If there is no 84533346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com * 'default character' specified by the font, then often the first character found is used. 84633346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com * 84733346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com * When GGI_MARK_NONEXISTING_GLYPHS is specified and a character does not map to a glyph, 84833346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com * then the glyph 0xFFFF is used. In Windows XP and earlier, Bitmap/Vector FON usually use 84933346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com * glyph 0x1F instead ('Terminal' appears to be special, returning 0xFFFF). 85033346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com * Type1 PFM/PFB, TT, OT TT, OT CFF all appear to use 0xFFFF, even on XP. 85133346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com */ 85233346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com DWORD result = GetGlyphIndicesW(fDDC, utf16, 1, &index, GGI_MARK_NONEXISTING_GLYPHS); 85333346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com if (result == GDI_ERROR 85433346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com || 0xFFFF == index 8554732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com || (0x1F == index && 8564732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com (fType == SkScalerContext_GDI::kBitmap_Type || 8574732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com fType == SkScalerContext_GDI::kLine_Type) 8584732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com /*&& winVer < Vista */) 8594732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com ) 86033346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com { 86133346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com index = 0; 86233346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com } 863ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 864ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Use uniscribe to detemine glyph index for non-BMP characters. 86527f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com static const int numWCHAR = 2; 86627f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com static const int maxItems = 2; 86727f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com // MSDN states that this can be NULL, but some things don't work then. 86827f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com SCRIPT_CONTROL sc = { 0 }; 86927f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com // Add extra item to SCRIPT_ITEM to work around a bug (now documented). 87027f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com // https://bugzilla.mozilla.org/show_bug.cgi?id=366643 87127f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com SCRIPT_ITEM si[maxItems + 1]; 87227f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com int numItems; 87327f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com HRZM(ScriptItemize(utf16, numWCHAR, maxItems, &sc, NULL, si, &numItems), 87427f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com "Could not itemize character."); 87527f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com 87627f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com // Sometimes ScriptShape cannot find a glyph for a non-BMP and returns 2 space glyphs. 87727f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com static const int maxGlyphs = 2; 87827f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com SCRIPT_VISATTR vsa[maxGlyphs]; 87927f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com WORD outGlyphs[maxGlyphs]; 88027f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com WORD logClust[numWCHAR]; 88127f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com int numGlyphs; 88227f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com HRZM(ScriptShape(fDDC, &fSC, utf16, numWCHAR, maxGlyphs, &si[0].a, 88327f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com outGlyphs, logClust, vsa, &numGlyphs), 88427f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com "Could not shape character."); 88527f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com if (1 == numGlyphs) { 88627f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com index = outGlyphs[0]; 88727f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com } 888ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 889ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return index; 890ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 891ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 89230ddd615c447fed73286151b463af20d309c85f1reed@google.comvoid SkScalerContext_GDI::generateAdvance(SkGlyph* glyph) { 893ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com this->generateMetrics(glyph); 894ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 895ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 89630ddd615c447fed73286151b463af20d309c85f1reed@google.comvoid SkScalerContext_GDI::generateMetrics(SkGlyph* glyph) { 897ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(fDDC); 898ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 8994732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com if (fType == SkScalerContext_GDI::kBitmap_Type || fType == SkScalerContext_GDI::kLine_Type) { 900a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com SIZE size; 901a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com WORD glyphs = glyph->getGlyphID(0); 902a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (0 == GetTextExtentPointI(fDDC, &glyphs, 1, &size)) { 903a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fWidth = SkToS16(fTM.tmMaxCharWidth); 904a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } else { 905a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fWidth = SkToS16(size.cx); 906a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 907a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fHeight = SkToS16(size.cy); 908a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 909a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fTop = SkToS16(-fTM.tmAscent); 9104732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com // Bitmap FON cannot underhang, but vector FON may. 9114732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com // There appears no means of determining underhang of vector FON. 912a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fLeft = SkToS16(0); 913a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fAdvanceX = SkIntToFixed(glyph->fWidth); 914a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fAdvanceY = 0; 915a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 9164732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com // Vector FON will transform nicely, but bitmap FON do not. 9174732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com if (fType == SkScalerContext_GDI::kLine_Type) { 9184732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com SkRect bounds = SkRect::MakeXYWH(glyph->fLeft, glyph->fTop, 9194732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com glyph->fWidth, glyph->fHeight); 9204732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com SkMatrix m; 9214732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com m.setAll(SkFIXEDToScalar(fMat22.eM11), -SkFIXEDToScalar(fMat22.eM21), 0, 9224732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com -SkFIXEDToScalar(fMat22.eM12), SkFIXEDToScalar(fMat22.eM22), 0, 9234732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com 0, 0, SkScalarToPersp(SK_Scalar1)); 9244732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com m.mapRect(&bounds); 9254732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com bounds.roundOut(); 9264732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com glyph->fLeft = SkScalarTruncToInt(bounds.fLeft); 9274732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com glyph->fTop = SkScalarTruncToInt(bounds.fTop); 9284732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com glyph->fWidth = SkScalarTruncToInt(bounds.width()); 9294732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com glyph->fHeight = SkScalarTruncToInt(bounds.height()); 9304732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com } 9314732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com 932d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // Apply matrix to advance. 9334732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com glyph->fAdvanceY = SkFixedMul(-SkFIXEDToFixed(fMat22.eM12), glyph->fAdvanceX); 934a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fAdvanceX = SkFixedMul(SkFIXEDToFixed(fMat22.eM11), glyph->fAdvanceX); 935a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 936a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com return; 937a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 938a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 939d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com UINT glyphId = glyph->getGlyphID(0); 940d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com 941ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com GLYPHMETRICS gm; 9421dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com sk_bzero(&gm, sizeof(gm)); 943ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 944d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com DWORD status = GetGlyphOutlineW(fDDC, glyphId, GGO_METRICS | GGO_GLYPH_INDEX, &gm, 0, NULL, &fMat22); 945d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (GDI_ERROR == status) { 946055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com LogFontTypeface::EnsureAccessible(this->getTypeface()); 947d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com status = GetGlyphOutlineW(fDDC, glyphId, GGO_METRICS | GGO_GLYPH_INDEX, &gm, 0, NULL, &fMat22); 948d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (GDI_ERROR == status) { 949d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->zeroMetrics(); 950d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com return; 951d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 95239698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 953ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 954d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com bool empty = false; 955d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // The black box is either the embedded bitmap size or the outline extent. 956d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // It is 1x1 if nothing is to be drawn, but will also be 1x1 if something very small 957d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // is to be drawn, like a '.'. We need to outset '.' but do not wish to outset ' '. 958d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (1 == gm.gmBlackBoxX && 1 == gm.gmBlackBoxY) { 959d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // If GetGlyphOutline with GGO_NATIVE returns 0, we know there was no outline. 960d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com DWORD bufferSize = GetGlyphOutlineW(fDDC, glyphId, GGO_NATIVE | GGO_GLYPH_INDEX, &gm, 0, NULL, &fMat22); 961d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com empty = (0 == bufferSize); 962d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 9631dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 964d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fTop = SkToS16(-gm.gmptGlyphOrigin.y); 965d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fLeft = SkToS16(gm.gmptGlyphOrigin.x); 966d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (empty) { 967d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fWidth = 0; 968d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fHeight = 0; 969ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 970d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // Outset, since the image may bleed out of the black box. 971d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // For embedded bitmaps the black box should be exact. 972d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // For outlines we need to outset by 1 in all directions for bleed. 973d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // For ClearType we need to outset by 2 for bleed. 974d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fWidth = gm.gmBlackBoxX + 4; 975d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fHeight = gm.gmBlackBoxY + 4; 976d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fTop -= 2; 977d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fLeft -= 2; 978d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 979d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fAdvanceX = SkIntToFixed(gm.gmCellIncX); 980d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fAdvanceY = SkIntToFixed(gm.gmCellIncY); 981d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fRsbDelta = 0; 982d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fLsbDelta = 0; 983d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com 9846a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com if (this->isSubpixel()) { 985d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com sk_bzero(&gm, sizeof(gm)); 9866a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com status = GetGlyphOutlineW(fDDC, glyphId, GGO_METRICS | GGO_GLYPH_INDEX, &gm, 0, NULL, &fHighResMat22); 987d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (GDI_ERROR != status) { 988d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkPoint advance; 989d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fHiResMatrix.mapXY(SkIntToScalar(gm.gmCellIncX), SkIntToScalar(gm.gmCellIncY), &advance); 990d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fAdvanceX = SkScalarToFixed(advance.fX); 991d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fAdvanceY = SkScalarToFixed(advance.fY); 992d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 9930abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } else if (!isAxisAligned(this->fRec)) { 9940abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com status = GetGlyphOutlineW(fDDC, glyphId, GGO_METRICS | GGO_GLYPH_INDEX, &gm, 0, NULL, &fGsA); 9950abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (GDI_ERROR != status) { 9960abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkPoint advance; 9970abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fG_inv.mapXY(SkIntToScalar(gm.gmCellIncX), SkIntToScalar(gm.gmCellIncY), &advance); 9980abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com glyph->fAdvanceX = SkScalarToFixed(advance.fX); 9990abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com glyph->fAdvanceY = SkScalarToFixed(advance.fY); 10000abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 1001ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1002ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1003ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 10046a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.comstatic const MAT2 gMat2Identity = {{0, 1}, {0, 0}, {0, 0}, {0, 1}}; 100530ddd615c447fed73286151b463af20d309c85f1reed@google.comvoid SkScalerContext_GDI::generateFontMetrics(SkPaint::FontMetrics* mx, SkPaint::FontMetrics* my) { 100660af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com if (!(mx || my)) { 1007ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return; 100860af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com } 100960af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com 101060af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com if (mx) { 101160af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com sk_bzero(mx, sizeof(*mx)); 101260af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com } 101360af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com if (my) { 101460af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com sk_bzero(my, sizeof(*my)); 101560af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com } 1016ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1017ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(fDDC); 1018ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1019e9d831957602e3fa46fc4b609ae6d2da46654915bungeman@google.com#ifndef SK_GDI_ALWAYS_USE_TEXTMETRICS_FOR_FONT_METRICS 10204732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com if (fType == SkScalerContext_GDI::kBitmap_Type || fType == SkScalerContext_GDI::kLine_Type) { 1021e9d831957602e3fa46fc4b609ae6d2da46654915bungeman@google.com#endif 1022a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (mx) { 1023a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com mx->fTop = SkIntToScalar(-fTM.tmAscent); 1024a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com mx->fAscent = SkIntToScalar(-fTM.tmAscent); 10250abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com mx->fDescent = SkIntToScalar(fTM.tmDescent); 1026a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com mx->fBottom = SkIntToScalar(fTM.tmDescent); 102760af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com mx->fLeading = SkIntToScalar(fTM.tmExternalLeading); 1028a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 1029a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 1030a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (my) { 1031a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com my->fTop = SkIntToScalar(-fTM.tmAscent); 1032a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com my->fAscent = SkIntToScalar(-fTM.tmAscent); 10330abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com my->fDescent = SkIntToScalar(fTM.tmDescent); 1034a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com my->fBottom = SkIntToScalar(fTM.tmDescent); 103560af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com my->fLeading = SkIntToScalar(fTM.tmExternalLeading); 103660af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com my->fAvgCharWidth = SkIntToScalar(fTM.tmAveCharWidth); 1037e9d831957602e3fa46fc4b609ae6d2da46654915bungeman@google.com my->fMaxCharWidth = SkIntToScalar(fTM.tmMaxCharWidth); 1038e9d831957602e3fa46fc4b609ae6d2da46654915bungeman@google.com my->fXMin = 0; 1039e9d831957602e3fa46fc4b609ae6d2da46654915bungeman@google.com my->fXMax = my->fMaxCharWidth; 1040e9d831957602e3fa46fc4b609ae6d2da46654915bungeman@google.com //my->fXHeight = 0; 1041a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 1042e9d831957602e3fa46fc4b609ae6d2da46654915bungeman@google.com#ifndef SK_GDI_ALWAYS_USE_TEXTMETRICS_FOR_FONT_METRICS 1043a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com return; 1044a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 1045e9d831957602e3fa46fc4b609ae6d2da46654915bungeman@google.com#endif 1046a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 1047ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com OUTLINETEXTMETRIC otm; 1048ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1049ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com uint32_t ret = GetOutlineTextMetrics(fDDC, sizeof(otm), &otm); 10500abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (0 == ret) { 1051055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com LogFontTypeface::EnsureAccessible(this->getTypeface()); 105239698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com ret = GetOutlineTextMetrics(fDDC, sizeof(otm), &otm); 105339698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 10540abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (0 == ret) { 1055a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com return; 1056ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1057ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1058ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (mx) { 10590abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com mx->fTop = SkIntToScalar(-otm.otmrcFontBox.left); 10600abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com mx->fAscent = SkIntToScalar(-otm.otmAscent); 10610abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com mx->fDescent = SkIntToScalar(-otm.otmDescent); 10620abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com mx->fBottom = SkIntToScalar(otm.otmrcFontBox.right); 10630abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com mx->fLeading = SkIntToScalar(otm.otmLineGap); 1064ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1065ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1066ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (my) { 1067e9d831957602e3fa46fc4b609ae6d2da46654915bungeman@google.com#ifndef SK_GDI_ALWAYS_USE_TEXTMETRICS_FOR_FONT_METRICS 10680abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com my->fTop = SkIntToScalar(-otm.otmrcFontBox.top); 10690abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com my->fAscent = SkIntToScalar(-otm.otmAscent); 10700abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com my->fDescent = SkIntToScalar(-otm.otmDescent); 10710abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com my->fBottom = SkIntToScalar(-otm.otmrcFontBox.bottom); 10720abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com my->fLeading = SkIntToScalar(otm.otmLineGap); 10730abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com my->fAvgCharWidth = SkIntToScalar(otm.otmTextMetrics.tmAveCharWidth); 10740abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com my->fMaxCharWidth = SkIntToScalar(otm.otmTextMetrics.tmMaxCharWidth); 10750abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com my->fXMin = SkIntToScalar(otm.otmrcFontBox.left); 10760abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com my->fXMax = SkIntToScalar(otm.otmrcFontBox.right); 1077e9d831957602e3fa46fc4b609ae6d2da46654915bungeman@google.com#endif 10780abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com my->fXHeight = SkIntToScalar(otm.otmsXHeight); 10790abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 10800abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GLYPHMETRICS gm; 10810abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com sk_bzero(&gm, sizeof(gm)); 10820abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com DWORD len = GetGlyphOutlineW(fDDC, 'x', GGO_METRICS, &gm, 0, 0, &gMat2Identity); 10830abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (len != GDI_ERROR && gm.gmBlackBoxY > 0) { 10840abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com my->fXHeight = SkIntToScalar(gm.gmBlackBoxY); 10850abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 1086ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1087ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1088ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 10897430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com//////////////////////////////////////////////////////////////////////////////////////// 10907430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com 10910abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#define SK_SHOW_TEXT_BLIT_COVERAGE 0 10920abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 10937430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.comstatic void build_power_table(uint8_t table[], float ee) { 10947430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com for (int i = 0; i < 256; i++) { 10957430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com float x = i / 255.f; 109697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com x = sk_float_pow(x, ee); 1097e1ca705cac4b946993f6cbf798e2a0ba27e739f3reed@google.com int xx = SkScalarRoundToInt(x * 255); 10987430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com table[i] = SkToU8(xx); 10997430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com } 11007430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com} 11017430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com 110297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com/** 110397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * This will invert the gamma applied by GDI (gray-scale antialiased), so we 110497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * can get linear values. 110597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * 110697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * GDI grayscale appears to use a hard-coded gamma of 2.3. 110797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * 110897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * GDI grayscale appears to draw using the black and white rasterizer at four 110997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * times the size and then downsamples to compute the coverage mask. As a 111097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * result there are only seventeen total grays. This lack of fidelity means 111197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * that shifting into other color spaces is imprecise. 111297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com */ 111397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic const uint8_t* getInverseGammaTableGDI() { 111405a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Since build_power_table is idempotent, many threads can build gTableGdi 111505a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // simultaneously. 111605a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com 111705a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Microsoft Specific: 111805a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Making gInited volatile provides read-aquire and write-release in vc++. 111905a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // In VS2012, see compiler option /volatile:(ms|iso). 112005a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Replace with C++11 atomics when possible. 112105a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com static volatile bool gInited; 112297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com static uint8_t gTableGdi[256]; 112305a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com if (gInited) { 112405a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Need a L/L (read) barrier (full acquire not needed). If gInited is observed 112505a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // true then gTableGdi is observable, but it must be requested. 112605a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com } else { 112797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com build_power_table(gTableGdi, 2.3f); 112805a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Need a S/S (write) barrier (full release not needed) here so that this 112905a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // write to gInited becomes observable after gTableGdi. 113097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com gInited = true; 113197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } 113297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com return gTableGdi; 113397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com} 113497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com 113597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com/** 113697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * This will invert the gamma applied by GDI ClearType, so we can get linear 113797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * values. 113897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * 113997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * GDI ClearType uses SPI_GETFONTSMOOTHINGCONTRAST / 1000 as the gamma value. 114097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * If this value is not specified, the default is a gamma of 1.4. 114197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com */ 114297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic const uint8_t* getInverseGammaTableClearType() { 114305a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // We don't expect SPI_GETFONTSMOOTHINGCONTRAST to ever change, so building 114405a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // gTableClearType with build_power_table is effectively idempotent. 114505a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com 114605a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Microsoft Specific: 114705a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Making gInited volatile provides read-aquire and write-release in vc++. 114805a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // In VS2012, see compiler option /volatile:(ms|iso). 114905a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Replace with C++11 atomics when possible. 115005a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com static volatile bool gInited; 115197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com static uint8_t gTableClearType[256]; 115205a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com if (gInited) { 115305a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Need a L/L (read) barrier (acquire not needed). If gInited is observed 115405a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // true then gTableClearType is observable, but it must be requested. 115505a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com } else { 11567430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com UINT level = 0; 11577430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com if (!SystemParametersInfo(SPI_GETFONTSMOOTHINGCONTRAST, 0, &level, 0) || !level) { 11587430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com // can't get the data, so use a default 11597430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com level = 1400; 11607430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com } 116197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com build_power_table(gTableClearType, level / 1000.0f); 116205a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Need a S/S (write) barrier (release not needed) here so that this 116305a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // write to gInited becomes observable after gTableClearType. 11647430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com gInited = true; 11657430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com } 116697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com return gTableClearType; 11677430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com} 11687430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com 1169ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkColorPriv.h" 1170ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 11716385314686875ecb484d95b33fcbf08890b5144dbungeman@google.com//Cannot assume that the input rgb is gray due to possible setting of kGenA8FromLCD_Flag. 117297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 117397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic inline uint8_t rgb_to_a8(SkGdiRGB rgb, const uint8_t* table8) { 11746385314686875ecb484d95b33fcbf08890b5144dbungeman@google.com U8CPU r = (rgb >> 16) & 0xFF; 11756385314686875ecb484d95b33fcbf08890b5144dbungeman@google.com U8CPU g = (rgb >> 8) & 0xFF; 11766385314686875ecb484d95b33fcbf08890b5144dbungeman@google.com U8CPU b = (rgb >> 0) & 0xFF; 11771bfe01d06b896eca94c80d9af9a6bb30216b5e42bungeman@google.com return sk_apply_lut_if<APPLY_PREBLEND>(SkComputeLuminance(r, g, b), table8); 117882a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com} 117982a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 118097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 118197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic inline uint16_t rgb_to_lcd16(SkGdiRGB rgb, const uint8_t* tableR, 118297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableG, 118397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableB) { 118497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU r = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 16) & 0xFF, tableR); 118597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU g = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 8) & 0xFF, tableG); 118697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU b = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 0) & 0xFF, tableB); 11870abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#if SK_SHOW_TEXT_BLIT_COVERAGE 11880abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com r = SkMax32(r, 10); g = SkMax32(g, 10); b = SkMax32(b, 10); 11890abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#endif 119097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com return SkPack888ToRGB16(r, g, b); 1191ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1192ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 119397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 119497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic inline SkPMColor rgb_to_lcd32(SkGdiRGB rgb, const uint8_t* tableR, 119597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableG, 119697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableB) { 119797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU r = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 16) & 0xFF, tableR); 119897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU g = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 8) & 0xFF, tableG); 119997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU b = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 0) & 0xFF, tableB); 12000abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#if SK_SHOW_TEXT_BLIT_COVERAGE 12010abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com r = SkMax32(r, 10); g = SkMax32(g, 10); b = SkMax32(b, 10); 12020abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#endif 120397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com return SkPackARGB32(0xFF, r, g, b); 1204754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com} 1205754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com 120682cff020b7e055f2d01686f060a884df842306edreed@google.com// Is this GDI color neither black nor white? If so, we have to keep this 120782cff020b7e055f2d01686f060a884df842306edreed@google.com// image as is, rather than smashing it down to a BW mask. 120882cff020b7e055f2d01686f060a884df842306edreed@google.com// 120982cff020b7e055f2d01686f060a884df842306edreed@google.com// returns int instead of bool, since we don't want/have to pay to convert 121082cff020b7e055f2d01686f060a884df842306edreed@google.com// the zero/non-zero value into a bool 121182cff020b7e055f2d01686f060a884df842306edreed@google.comstatic int is_not_black_or_white(SkGdiRGB c) { 121282cff020b7e055f2d01686f060a884df842306edreed@google.com // same as (but faster than) 121382cff020b7e055f2d01686f060a884df842306edreed@google.com // c &= 0x00FFFFFF; 121482cff020b7e055f2d01686f060a884df842306edreed@google.com // return 0 == c || 0x00FFFFFF == c; 121582cff020b7e055f2d01686f060a884df842306edreed@google.com return (c + (c & 1)) & 0x00FFFFFF; 12165e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 12175e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 12184b18f5767ab1df7fedf0ff2e3a9eac7f7c500c36bungeman@google.comstatic bool is_rgb_really_bw(const SkGdiRGB* src, int width, int height, size_t srcRB) { 12195e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int y = 0; y < height; ++y) { 12205e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int x = 0; x < width; ++x) { 122182cff020b7e055f2d01686f060a884df842306edreed@google.com if (is_not_black_or_white(src[x])) { 12225e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com return false; 12235e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 12245e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 122505a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com src = SkTAddOffset<const SkGdiRGB>(src, srcRB); 12265e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 12275e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com return true; 12285e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 12295e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 123097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com// gdi's bitmap is upside-down, so we reverse dst walking in Y 123197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com// whenever we copy it into skia's buffer 12325e2df64215f12660ab26b96816f40ad8e32bf16freed@google.comstatic void rgb_to_bw(const SkGdiRGB* SK_RESTRICT src, size_t srcRB, 123397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const SkGlyph& glyph) { 12345e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const int width = glyph.fWidth; 12355e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const size_t dstRB = (width + 7) >> 3; 12365e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com uint8_t* SK_RESTRICT dst = (uint8_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 12375e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 12385e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com int byteCount = width >> 3; 12395e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com int bitCount = width & 7; 12405e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 12415e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com // adjust srcRB to skip the values in our byteCount loop, 12425e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com // since we increment src locally there 12435e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com srcRB -= byteCount * 8 * sizeof(SkGdiRGB); 12445e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 12455e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int y = 0; y < glyph.fHeight; ++y) { 12465e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com if (byteCount > 0) { 12475e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int i = 0; i < byteCount; ++i) { 12487a230142e01c5a8cf955be12a5f287589b551634reed@google.com unsigned byte = 0; 124997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[0] & (1 << 7); 125097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[1] & (1 << 6); 125197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[2] & (1 << 5); 125297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[3] & (1 << 4); 125397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[4] & (1 << 3); 125497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[5] & (1 << 2); 125597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[6] & (1 << 1); 125697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[7] & (1 << 0); 12576a8f14d9633b330fb8051581828a0aaf4403d1a9reed@google.com dst[i] = byte; 12585e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com src += 8; 12595e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 12605e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 12615e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com if (bitCount > 0) { 12625e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com unsigned byte = 0; 12635e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com unsigned mask = 0x80; 12645e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int i = 0; i < bitCount; i++) { 126597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[i] & mask; 12665e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com mask >>= 1; 12675e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 12685e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com dst[byteCount] = byte; 12695e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 127005a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com src = SkTAddOffset<const SkGdiRGB>(src, srcRB); 12715e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com dst -= dstRB; 12725e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 12730abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#if SK_SHOW_TEXT_BLIT_COVERAGE 12740abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (glyph.fWidth > 0 && glyph.fHeight > 0) { 12750abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com uint8_t* first = (uint8_t*)glyph.fImage; 12760abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com uint8_t* last = (uint8_t*)((char*)glyph.fImage + glyph.fHeight * dstRB - 1); 12770abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com *first |= 1 << 7; 12780abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com *last |= bitCount == 0 ? 1 : 1 << (8 - bitCount); 12790abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 12800abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#endif 12815e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 12825e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 128397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 12845e2df64215f12660ab26b96816f40ad8e32bf16freed@google.comstatic void rgb_to_a8(const SkGdiRGB* SK_RESTRICT src, size_t srcRB, 128597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const SkGlyph& glyph, const uint8_t* table8) { 12865e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const size_t dstRB = glyph.rowBytes(); 12875e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const int width = glyph.fWidth; 12885e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com uint8_t* SK_RESTRICT dst = (uint8_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 12895e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 12905e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int y = 0; y < glyph.fHeight; y++) { 12915e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int i = 0; i < width; i++) { 129297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com dst[i] = rgb_to_a8<APPLY_PREBLEND>(src[i], table8); 12930abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#if SK_SHOW_TEXT_BLIT_COVERAGE 12940abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com dst[i] = SkMax32(dst[i], 10); 12950abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#endif 12965e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 129705a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com src = SkTAddOffset<const SkGdiRGB>(src, srcRB); 12985e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com dst -= dstRB; 12995e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 13005e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 13015e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 130297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 130397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic void rgb_to_lcd16(const SkGdiRGB* SK_RESTRICT src, size_t srcRB, const SkGlyph& glyph, 130497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableR, const uint8_t* tableG, const uint8_t* tableB) { 13055e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const size_t dstRB = glyph.rowBytes(); 13065e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const int width = glyph.fWidth; 13075e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com uint16_t* SK_RESTRICT dst = (uint16_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 13085e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 13095e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int y = 0; y < glyph.fHeight; y++) { 13105e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int i = 0; i < width; i++) { 131197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com dst[i] = rgb_to_lcd16<APPLY_PREBLEND>(src[i], tableR, tableG, tableB); 13125e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 131305a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com src = SkTAddOffset<const SkGdiRGB>(src, srcRB); 13145e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com dst = (uint16_t*)((char*)dst - dstRB); 13155e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 13165e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 13175e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 131897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 131997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic void rgb_to_lcd32(const SkGdiRGB* SK_RESTRICT src, size_t srcRB, const SkGlyph& glyph, 132097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableR, const uint8_t* tableG, const uint8_t* tableB) { 1321754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com const size_t dstRB = glyph.rowBytes(); 1322754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com const int width = glyph.fWidth; 132397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com uint32_t* SK_RESTRICT dst = (uint32_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 1324754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com 1325754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com for (int y = 0; y < glyph.fHeight; y++) { 1326754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com for (int i = 0; i < width; i++) { 132797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com dst[i] = rgb_to_lcd32<APPLY_PREBLEND>(src[i], tableR, tableG, tableB); 1328754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } 132905a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com src = SkTAddOffset<const SkGdiRGB>(src, srcRB); 133097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com dst = (uint32_t*)((char*)dst - dstRB); 1331754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } 1332754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com} 1333754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com 13346f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.comstatic inline unsigned clamp255(unsigned x) { 13356f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com SkASSERT(x <= 256); 13366f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com return x - (x >> 8); 13376f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com} 13386f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com 133930ddd615c447fed73286151b463af20d309c85f1reed@google.comvoid SkScalerContext_GDI::generateImage(const SkGlyph& glyph) { 1340ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(fDDC); 1341ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 13426271117d826098c1399cf7442f8eea2d665cb78areed@google.com const bool isBW = SkMask::kBW_Format == fRec.fMaskFormat; 134382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com const bool isAA = !isLCD(fRec); 134482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 134599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com size_t srcRB; 134697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const void* bits = fOffscreen.draw(glyph, isBW, &srcRB); 134739698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (NULL == bits) { 1348055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com LogFontTypeface::EnsureAccessible(this->getTypeface()); 134997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com bits = fOffscreen.draw(glyph, isBW, &srcRB); 135039698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (NULL == bits) { 135139698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com sk_bzero(glyph.fImage, glyph.computeImageSize()); 135239698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com return; 135339698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 135482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com } 135582a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 135697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com if (!isBW) { 13571bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com const uint8_t* table; 13581bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com //The offscreen contains a GDI blit if isAA and kGenA8FromLCD_Flag is not set. 13591bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com //Otherwise the offscreen contains a ClearType blit. 13601bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com if (isAA && !(fRec.fFlags & SkScalerContext::kGenA8FromLCD_Flag)) { 13611bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com table = getInverseGammaTableGDI(); 13621bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com } else { 13631bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com table = getInverseGammaTableClearType(); 136497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } 136597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //Note that the following cannot really be integrated into the 136697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //pre-blend, since we may not be applying the pre-blend; when we aren't 136797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //applying the pre-blend it means that a filter wants linear anyway. 136897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //Other code may also be applying the pre-blend, so we'd need another 136997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //one with this and one without. 13706f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com SkGdiRGB* addr = (SkGdiRGB*)bits; 13716f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com for (int y = 0; y < glyph.fHeight; ++y) { 13726f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com for (int x = 0; x < glyph.fWidth; ++x) { 13736f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com int r = (addr[x] >> 16) & 0xFF; 13746f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com int g = (addr[x] >> 8) & 0xFF; 13756f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com int b = (addr[x] >> 0) & 0xFF; 13767430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com addr[x] = (table[r] << 16) | (table[g] << 8) | table[b]; 13776f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com } 137805a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com addr = SkTAddOffset<SkGdiRGB>(addr, srcRB); 13796f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com } 13806f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com } 13816f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com 138282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com int width = glyph.fWidth; 138382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com size_t dstRB = glyph.rowBytes(); 138482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com if (isBW) { 138582a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com const uint8_t* src = (const uint8_t*)bits; 138682a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com uint8_t* dst = (uint8_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 138782a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com for (int y = 0; y < glyph.fHeight; y++) { 138882a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com memcpy(dst, src, dstRB); 138982a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com src += srcRB; 139082a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com dst -= dstRB; 1391ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 13920abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#if SK_SHOW_TEXT_BLIT_COVERAGE 13930abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (glyph.fWidth > 0 && glyph.fHeight > 0) { 13940abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com int bitCount = width & 7; 13950abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com uint8_t* first = (uint8_t*)glyph.fImage; 13960abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com uint8_t* last = (uint8_t*)((char*)glyph.fImage + glyph.fHeight * dstRB - 1); 13970abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com *first |= 1 << 7; 13980abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com *last |= bitCount == 0 ? 1 : 1 << (8 - bitCount); 13990abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 14000abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#endif 140182a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com } else if (isAA) { 14026f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com // since the caller may require A8 for maskfilters, we can't check for BW 14036f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com // ... until we have the caller tell us that explicitly 14045e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const SkGdiRGB* src = (const SkGdiRGB*)bits; 1405a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com if (fPreBlend.isApplicable()) { 1406a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com rgb_to_a8<true>(src, srcRB, glyph, fPreBlend.fG); 140797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } else { 1408a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com rgb_to_a8<false>(src, srcRB, glyph, fPreBlend.fG); 140997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } 141082a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com } else { // LCD16 14115e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const SkGdiRGB* src = (const SkGdiRGB*)bits; 14125e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com if (is_rgb_really_bw(src, width, glyph.fHeight, srcRB)) { 141397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com rgb_to_bw(src, srcRB, glyph); 14145e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com ((SkGlyph*)&glyph)->fMaskFormat = SkMask::kBW_Format; 14155e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } else { 1416754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com if (SkMask::kLCD16_Format == glyph.fMaskFormat) { 1417a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com if (fPreBlend.isApplicable()) { 1418a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com rgb_to_lcd16<true>(src, srcRB, glyph, 1419a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com fPreBlend.fR, fPreBlend.fG, fPreBlend.fB); 142097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } else { 1421a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com rgb_to_lcd16<false>(src, srcRB, glyph, 1422a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com fPreBlend.fR, fPreBlend.fG, fPreBlend.fB); 142397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } 1424754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } else { 1425754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com SkASSERT(SkMask::kLCD32_Format == glyph.fMaskFormat); 1426a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com if (fPreBlend.isApplicable()) { 1427a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com rgb_to_lcd32<true>(src, srcRB, glyph, 1428a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com fPreBlend.fR, fPreBlend.fG, fPreBlend.fB); 142997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } else { 1430a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com rgb_to_lcd32<false>(src, srcRB, glyph, 1431a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com fPreBlend.fR, fPreBlend.fG, fPreBlend.fB); 143297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } 1433754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } 1434ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1435ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1436ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1437ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 14380abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.comclass GDIGlyphbufferPointIter { 14390abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.compublic: 144027e21fe577211c1c40cbf40d0385b02c69d04522skia.committer@gmail.com GDIGlyphbufferPointIter(const uint8_t* glyphbuf, DWORD total_size) 14410abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com : fHeaderIter(glyphbuf, total_size), fCurveIter(), fPointIter() 14420abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com { } 14430abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 1444dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com POINTFX const * next() { 14450abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.comnextHeader: 14460abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (!fCurveIter.isSet()) { 14470abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYGONHEADER* header = fHeaderIter.next(); 1448dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com if (NULL == header) { 1449dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com return NULL; 1450dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com } 14510abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fCurveIter.set(header); 14520abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYCURVE* curve = fCurveIter.next(); 1453dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com if (NULL == curve) { 1454dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com return NULL; 1455dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com } 14560abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fPointIter.set(curve); 1457dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com return &header->pfxStart; 14580abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 1459ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 14600abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const POINTFX* nextPoint = fPointIter.next(); 14610abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (NULL == nextPoint) { 14620abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYCURVE* curve = fCurveIter.next(); 14630abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (NULL == curve) { 14640abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fCurveIter.set(); 14650abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com goto nextHeader; 14660abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } else { 14670abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fPointIter.set(curve); 14680abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 14690abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com nextPoint = fPointIter.next(); 14700abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 1471dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com return nextPoint; 14720abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 1473ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 14740abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com WORD currentCurveType() { 14750abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return fPointIter.fCurveType; 14760abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 147705a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com 14780abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.comprivate: 14790abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com /** Iterates over all of the polygon headers in a glyphbuf. */ 14800abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com class GDIPolygonHeaderIter { 14810abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com public: 148227e21fe577211c1c40cbf40d0385b02c69d04522skia.committer@gmail.com GDIPolygonHeaderIter(const uint8_t* glyphbuf, DWORD total_size) 14830abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com : fCurPolygon(reinterpret_cast<const TTPOLYGONHEADER*>(glyphbuf)) 14840abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com , fEndPolygon(SkTAddOffset<const TTPOLYGONHEADER>(glyphbuf, total_size)) 14850abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com { } 14860abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 14870abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYGONHEADER* next() { 14880abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (fCurPolygon >= fEndPolygon) { 14890abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return NULL; 14900abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 14910abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYGONHEADER* thisPolygon = fCurPolygon; 14920abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fCurPolygon = SkTAddOffset<const TTPOLYGONHEADER>(fCurPolygon, fCurPolygon->cb); 14930abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return thisPolygon; 14940abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 14950abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com private: 14960abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYGONHEADER* fCurPolygon; 14970abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYGONHEADER* fEndPolygon; 14980abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com }; 149905a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com 15000abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com /** Iterates over all of the polygon curves in a polygon header. */ 15010abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com class GDIPolygonCurveIter { 15020abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com public: 15030abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GDIPolygonCurveIter() : fCurCurve(NULL), fEndCurve(NULL) { } 15040abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 15050abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GDIPolygonCurveIter(const TTPOLYGONHEADER* curPolygon) 15060abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com : fCurCurve(SkTAddOffset<const TTPOLYCURVE>(curPolygon, sizeof(TTPOLYGONHEADER))) 15070abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com , fEndCurve(SkTAddOffset<const TTPOLYCURVE>(curPolygon, curPolygon->cb)) 15080abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com { } 15090abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 15100abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com bool isSet() { return fCurCurve != NULL; } 15110abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 15120abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com void set(const TTPOLYGONHEADER* curPolygon) { 15130abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fCurCurve = SkTAddOffset<const TTPOLYCURVE>(curPolygon, sizeof(TTPOLYGONHEADER)); 15140abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fEndCurve = SkTAddOffset<const TTPOLYCURVE>(curPolygon, curPolygon->cb); 15150abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 15160abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com void set() { 15170abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fCurCurve = NULL; 15180abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fEndCurve = NULL; 15190abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 15200abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 15210abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYCURVE* next() { 15220abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (fCurCurve >= fEndCurve) { 15230abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return NULL; 152405a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com } 15250abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYCURVE* thisCurve = fCurCurve; 15260abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fCurCurve = SkTAddOffset<const TTPOLYCURVE>(fCurCurve, size_of_TTPOLYCURVE(*fCurCurve)); 15270abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return thisCurve; 15280abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 15290abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com private: 15300abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com size_t size_of_TTPOLYCURVE(const TTPOLYCURVE& curve) { 15310abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return 2*sizeof(WORD) + curve.cpfx*sizeof(POINTFX); 153205a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com } 15330abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYCURVE* fCurCurve; 15340abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYCURVE* fEndCurve; 15350abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com }; 153605a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com 15370abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com /** Iterates over all of the polygon points in a polygon curve. */ 15380abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com class GDIPolygonCurvePointIter { 15390abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com public: 15400abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GDIPolygonCurvePointIter() : fCurveType(0), fCurPoint(NULL), fEndPoint(NULL) { } 154105a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com 15420abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GDIPolygonCurvePointIter(const TTPOLYCURVE* curPolygon) 15430abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com : fCurveType(curPolygon->wType) 15440abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com , fCurPoint(&curPolygon->apfx[0]) 15450abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com , fEndPoint(&curPolygon->apfx[curPolygon->cpfx]) 15460abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com { } 15470abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 15480abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com bool isSet() { return fCurPoint != NULL; } 15490abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 15500abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com void set(const TTPOLYCURVE* curPolygon) { 15510abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fCurveType = curPolygon->wType; 15520abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fCurPoint = &curPolygon->apfx[0]; 15530abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fEndPoint = &curPolygon->apfx[curPolygon->cpfx]; 15540abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 15550abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com void set() { 15560abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fCurPoint = NULL; 15570abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fEndPoint = NULL; 15580abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 15590abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 15600abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const POINTFX* next() { 15610abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (fCurPoint >= fEndPoint) { 15620abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return NULL; 156305a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com } 15640abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const POINTFX* thisPoint = fCurPoint; 15650abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com ++fCurPoint; 15660abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return thisPoint; 1567d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 1568ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 15690abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com WORD fCurveType; 15700abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com private: 15710abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const POINTFX* fCurPoint; 15720abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const POINTFX* fEndPoint; 15730abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com }; 15740abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 15750abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GDIPolygonHeaderIter fHeaderIter; 15760abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GDIPolygonCurveIter fCurveIter; 15770abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GDIPolygonCurvePointIter fPointIter; 15780abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com}; 15790abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 15800abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.comstatic void sk_path_from_gdi_path(SkPath* path, const uint8_t* glyphbuf, DWORD total_size) { 1581d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const uint8_t* cur_glyph = glyphbuf; 1582d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const uint8_t* end_glyph = glyphbuf + total_size; 1583ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1584d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com while (cur_glyph < end_glyph) { 1585d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const TTPOLYGONHEADER* th = (TTPOLYGONHEADER*)cur_glyph; 1586ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1587d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const uint8_t* end_poly = cur_glyph + th->cb; 1588d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const uint8_t* cur_poly = cur_glyph + sizeof(TTPOLYGONHEADER); 1589ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1590d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com path->moveTo(SkFixedToScalar( SkFIXEDToFixed(th->pfxStart.x)), 1591d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(th->pfxStart.y))); 1592ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1593d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com while (cur_poly < end_poly) { 1594d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const TTPOLYCURVE* pc = (const TTPOLYCURVE*)cur_poly; 1595ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1596d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (pc->wType == TT_PRIM_LINE) { 1597d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com for (uint16_t i = 0; i < pc->cpfx; i++) { 1598d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com path->lineTo(SkFixedToScalar( SkFIXEDToFixed(pc->apfx[i].x)), 1599d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(pc->apfx[i].y))); 1600ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1601d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 1602ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1603d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (pc->wType == TT_PRIM_QSPLINE) { 1604d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com for (uint16_t u = 0; u < pc->cpfx - 1; u++) { // Walk through points in spline 1605d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com POINTFX pnt_b = pc->apfx[u]; // B is always the current point 1606d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com POINTFX pnt_c = pc->apfx[u+1]; 1607ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1608d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (u < pc->cpfx - 2) { // If not on last spline, compute C 1609d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com pnt_c.x = SkFixedToFIXED(SkFixedAve(SkFIXEDToFixed(pnt_b.x), 1610d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFIXEDToFixed(pnt_c.x))); 1611d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com pnt_c.y = SkFixedToFIXED(SkFixedAve(SkFIXEDToFixed(pnt_b.y), 1612d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFIXEDToFixed(pnt_c.y))); 1613ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1614d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com 1615d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com path->quadTo(SkFixedToScalar( SkFIXEDToFixed(pnt_b.x)), 1616d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(pnt_b.y)), 1617d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFixedToScalar( SkFIXEDToFixed(pnt_c.x)), 1618d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(pnt_c.y))); 1619ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1620ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1621d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // Advance past this TTPOLYCURVE. 1622d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com cur_poly += sizeof(WORD) * 2 + sizeof(POINTFX) * pc->cpfx; 1623ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1624d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com cur_glyph += th->cb; 1625d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com path->close(); 1626ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1627ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1628ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1629dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com#define move_next_expected_hinted_point(iter, pElem) do {\ 1630dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com pElem = iter.next(); \ 1631dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com if (NULL == pElem) return false; \ 1632dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com} while(0) 1633dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com 1634dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com// It is possible for the hinted and unhinted versions of the same path to have 1635dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com// a different number of points due to GDI's handling of flipped points. 1636dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com// If this is detected, this will return false. 1637dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.comstatic bool sk_path_from_gdi_paths(SkPath* path, const uint8_t* glyphbuf, DWORD total_size, 16380abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GDIGlyphbufferPointIter hintedYs) { 16390abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const uint8_t* cur_glyph = glyphbuf; 16400abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const uint8_t* end_glyph = glyphbuf + total_size; 16410abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 1642dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com POINTFX const * hintedPoint; 1643dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com 16440abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com while (cur_glyph < end_glyph) { 16450abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYGONHEADER* th = (TTPOLYGONHEADER*)cur_glyph; 16460abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 16470abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const uint8_t* end_poly = cur_glyph + th->cb; 16480abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const uint8_t* cur_poly = cur_glyph + sizeof(TTPOLYGONHEADER); 16490abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 1650dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com move_next_expected_hinted_point(hintedYs, hintedPoint); 16510abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com path->moveTo(SkFixedToScalar( SkFIXEDToFixed(th->pfxStart.x)), 1652dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(hintedPoint->y))); 16530abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 16540abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com while (cur_poly < end_poly) { 16550abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYCURVE* pc = (const TTPOLYCURVE*)cur_poly; 16560abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 16570abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (pc->wType == TT_PRIM_LINE) { 16580abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com for (uint16_t i = 0; i < pc->cpfx; i++) { 1659dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com move_next_expected_hinted_point(hintedYs, hintedPoint); 16600abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com path->lineTo(SkFixedToScalar( SkFIXEDToFixed(pc->apfx[i].x)), 1661dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(hintedPoint->y))); 16620abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16630abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16640abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 16650abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (pc->wType == TT_PRIM_QSPLINE) { 16660abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com POINTFX currentPoint = pc->apfx[0]; 1667dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com move_next_expected_hinted_point(hintedYs, hintedPoint); 16680abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // only take the hinted y if it wasn't flipped 16690abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (hintedYs.currentCurveType() == TT_PRIM_QSPLINE) { 1670dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com currentPoint.y = hintedPoint->y; 16710abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16720abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com for (uint16_t u = 0; u < pc->cpfx - 1; u++) { // Walk through points in spline 16730abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com POINTFX pnt_b = currentPoint;//pc->apfx[u]; // B is always the current point 16740abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com POINTFX pnt_c = pc->apfx[u+1]; 1675dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com move_next_expected_hinted_point(hintedYs, hintedPoint); 16760abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // only take the hinted y if it wasn't flipped 16770abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (hintedYs.currentCurveType() == TT_PRIM_QSPLINE) { 1678dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com pnt_c.y = hintedPoint->y; 16790abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16800abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com currentPoint.x = pnt_c.x; 16810abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com currentPoint.y = pnt_c.y; 16820abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 16830abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (u < pc->cpfx - 2) { // If not on last spline, compute C 16840abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com pnt_c.x = SkFixedToFIXED(SkFixedAve(SkFIXEDToFixed(pnt_b.x), 16850abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkFIXEDToFixed(pnt_c.x))); 16860abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com pnt_c.y = SkFixedToFIXED(SkFixedAve(SkFIXEDToFixed(pnt_b.y), 16870abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkFIXEDToFixed(pnt_c.y))); 16880abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16890abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 16900abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com path->quadTo(SkFixedToScalar( SkFIXEDToFixed(pnt_b.x)), 16910abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(pnt_b.y)), 16920abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkFixedToScalar( SkFIXEDToFixed(pnt_c.x)), 16930abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(pnt_c.y))); 16940abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16950abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16960abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // Advance past this TTPOLYCURVE. 16970abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com cur_poly += sizeof(WORD) * 2 + sizeof(POINTFX) * pc->cpfx; 16980abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16990abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com cur_glyph += th->cb; 17000abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com path->close(); 17010abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 1702dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com return true; 17030abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com} 17040abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 170530ddd615c447fed73286151b463af20d309c85f1reed@google.comDWORD SkScalerContext_GDI::getGDIGlyphPath(const SkGlyph& glyph, UINT flags, 17060abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkAutoSTMalloc<BUFFERSIZE, uint8_t>* glyphbuf) 17070abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com{ 17080abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GLYPHMETRICS gm; 17090abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 17100abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com DWORD total_size = GetGlyphOutlineW(fDDC, glyph.fID, flags, &gm, BUFFERSIZE, glyphbuf->get(), &fMat22); 17110abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // Sometimes GetGlyphOutlineW returns a number larger than BUFFERSIZE even if BUFFERSIZE > 0. 17120abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // It has been verified that this does not involve a buffer overrun. 17130abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (GDI_ERROR == total_size || total_size > BUFFERSIZE) { 17140abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // GDI_ERROR because the BUFFERSIZE was too small, or because the data was not accessible. 17150abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // When the data is not accessable GetGlyphOutlineW fails rather quickly, 17160abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // so just try to get the size. If that fails then ensure the data is accessible. 17170abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com total_size = GetGlyphOutlineW(fDDC, glyph.fID, flags, &gm, 0, NULL, &fMat22); 17180abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (GDI_ERROR == total_size) { 17190abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com LogFontTypeface::EnsureAccessible(this->getTypeface()); 17200abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com total_size = GetGlyphOutlineW(fDDC, glyph.fID, flags, &gm, 0, NULL, &fMat22); 17210abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (GDI_ERROR == total_size) { 17220abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkASSERT(false); 17230abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return 0; 17240abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 17250abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 17260abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 17270abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com glyphbuf->reset(total_size); 17280abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 17290abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com DWORD ret = GetGlyphOutlineW(fDDC, glyph.fID, flags, &gm, total_size, glyphbuf->get(), &fMat22); 17300abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (GDI_ERROR == ret) { 17310abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com LogFontTypeface::EnsureAccessible(this->getTypeface()); 17320abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com ret = GetGlyphOutlineW(fDDC, glyph.fID, flags, &gm, total_size, glyphbuf->get(), &fMat22); 17330abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (GDI_ERROR == ret) { 17340abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkASSERT(false); 17350abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return 0; 17360abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 17370abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 17380abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 17390abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return total_size; 17400abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com} 17410abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 174230ddd615c447fed73286151b463af20d309c85f1reed@google.comvoid SkScalerContext_GDI::generatePath(const SkGlyph& glyph, SkPath* path) { 17430abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkASSERT(&glyph && path); 17440abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkASSERT(fDDC); 17450abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 17460abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com path->reset(); 17470abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 17480abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // Out of all the fonts on a typical Windows box, 17490abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // 25% of glyphs require more than 2KB. 17500abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // 1% of glyphs require more than 4KB. 17510abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // 0.01% of glyphs require more than 8KB. 17520abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // 8KB is less than 1% of the normal 1MB stack on Windows. 17530abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // Note that some web fonts glyphs require more than 20KB. 17540abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com //static const DWORD BUFFERSIZE = (1 << 13); 17550abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 17560abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com //GDI only uses hinted outlines when axis aligned. 17570abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com UINT format = GGO_NATIVE | GGO_GLYPH_INDEX; 17580abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (fRec.getHinting() == SkPaint::kNo_Hinting || fRec.getHinting() == SkPaint::kSlight_Hinting){ 17590abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com format |= GGO_UNHINTED; 17600abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 17610abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkAutoSTMalloc<BUFFERSIZE, uint8_t> glyphbuf(BUFFERSIZE); 17620abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com DWORD total_size = getGDIGlyphPath(glyph, format, &glyphbuf); 17630abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (0 == total_size) { 17640abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return; 17650abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 17660abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 17670abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (fRec.getHinting() != SkPaint::kSlight_Hinting) { 17680abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com sk_path_from_gdi_path(path, glyphbuf, total_size); 17690abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } else { 17700abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com //GDI only uses hinted outlines when axis aligned. 17710abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com UINT format = GGO_NATIVE | GGO_GLYPH_INDEX; 17720abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 17730abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkAutoSTMalloc<BUFFERSIZE, uint8_t> hintedGlyphbuf(BUFFERSIZE); 17740abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com DWORD hinted_total_size = getGDIGlyphPath(glyph, format, &hintedGlyphbuf); 17750abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (0 == hinted_total_size) { 17760abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return; 17770abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 17780abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 1779dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com if (!sk_path_from_gdi_paths(path, glyphbuf, total_size, 1780dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com GDIGlyphbufferPointIter(hintedGlyphbuf, hinted_total_size))) 1781dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com { 1782dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com path->reset(); 1783dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com sk_path_from_gdi_path(path, glyphbuf, total_size); 1784dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com } 17850abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 17860abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com} 17870abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 1788484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comstatic void logfont_for_name(const char* familyName, LOGFONT* lf) { 1789484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com sk_bzero(lf, sizeof(LOGFONT)); 1790e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com#ifdef UNICODE 1791484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com // Get the buffer size needed first. 1792484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com size_t str_len = ::MultiByteToWideChar(CP_UTF8, 0, familyName, 1793484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com -1, NULL, 0); 1794484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com // Allocate a buffer (str_len already has terminating null 1795484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com // accounted for). 1796484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com wchar_t *wideFamilyName = new wchar_t[str_len]; 1797484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com // Now actually convert the string. 1798484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ::MultiByteToWideChar(CP_UTF8, 0, familyName, -1, 1799484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com wideFamilyName, str_len); 1800484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ::wcsncpy(lf->lfFaceName, wideFamilyName, LF_FACESIZE - 1); 1801484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com delete [] wideFamilyName; 1802484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com lf->lfFaceName[LF_FACESIZE-1] = L'\0'; 1803e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com#else 1804484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ::strncpy(lf->lfFaceName, familyName, LF_FACESIZE - 1); 1805484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com lf->lfFaceName[LF_FACESIZE - 1] = '\0'; 1806e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com#endif 1807e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com} 1808e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com 18095526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.comvoid LogFontTypeface::onGetFontDescriptor(SkFontDescriptor* desc, 18105526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.com bool* isLocalStream) const { 18117103f182ce61280eacb35f1832df350b642a5381bungeman@google.com // Get the actual name of the typeface. The logfont may not know this. 18125526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.com HFONT font = CreateFontIndirect(&fLogFont); 18137103f182ce61280eacb35f1832df350b642a5381bungeman@google.com 18147103f182ce61280eacb35f1832df350b642a5381bungeman@google.com HDC deviceContext = ::CreateCompatibleDC(NULL); 18157103f182ce61280eacb35f1832df350b642a5381bungeman@google.com HFONT savefont = (HFONT)SelectObject(deviceContext, font); 18167103f182ce61280eacb35f1832df350b642a5381bungeman@google.com 1817a980269c2498836101146adc729ef780fb89824ebungeman@google.com SkString familyName; 1818a980269c2498836101146adc729ef780fb89824ebungeman@google.com dcfontname_to_skstring(deviceContext, fLogFont, &familyName); 18197103f182ce61280eacb35f1832df350b642a5381bungeman@google.com 18207103f182ce61280eacb35f1832df350b642a5381bungeman@google.com if (deviceContext) { 18217103f182ce61280eacb35f1832df350b642a5381bungeman@google.com ::SelectObject(deviceContext, savefont); 18227103f182ce61280eacb35f1832df350b642a5381bungeman@google.com ::DeleteDC(deviceContext); 18237103f182ce61280eacb35f1832df350b642a5381bungeman@google.com } 18247103f182ce61280eacb35f1832df350b642a5381bungeman@google.com if (font) { 18257103f182ce61280eacb35f1832df350b642a5381bungeman@google.com ::DeleteObject(font); 18267103f182ce61280eacb35f1832df350b642a5381bungeman@google.com } 18277103f182ce61280eacb35f1832df350b642a5381bungeman@google.com 18285526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.com desc->setFamilyName(familyName.c_str()); 18295526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.com *isLocalStream = this->fSerializeAsStream; 1830ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1831ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1832ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic bool getWidthAdvance(HDC hdc, int gId, int16_t* advance) { 1833ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Initialize the MAT2 structure to the identify transformation matrix. 1834ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com static const MAT2 mat2 = {SkScalarToFIXED(1), SkScalarToFIXED(0), 1835ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkScalarToFIXED(0), SkScalarToFIXED(1)}; 1836ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int flags = GGO_METRICS | GGO_GLYPH_INDEX; 1837ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com GLYPHMETRICS gm; 1838ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (GDI_ERROR == GetGlyphOutline(hdc, gId, flags, &gm, 0, NULL, &mat2)) { 1839ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return false; 1840ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1841ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(advance); 1842ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com *advance = gm.gmCellIncX; 1843ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return true; 1844ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1845ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 18462689f615e364dc48ad73826564f5b13d2329179dreed@google.comSkAdvancedTypefaceMetrics* LogFontTypeface::onGetAdvancedTypefaceMetrics( 184737ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org SkAdvancedTypefaceMetrics::PerGlyphInfo perGlyphInfo, 184837ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org const uint32_t* glyphIDs, 18492689f615e364dc48ad73826564f5b13d2329179dreed@google.com uint32_t glyphIDsCount) const { 18502689f615e364dc48ad73826564f5b13d2329179dreed@google.com LOGFONT lf = fLogFont; 1851ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkAdvancedTypefaceMetrics* info = NULL; 1852ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1853ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HDC hdc = CreateCompatibleDC(NULL); 1854ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT font = CreateFontIndirect(&lf); 1855ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT savefont = (HFONT)SelectObject(hdc, font); 1856ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT designFont = NULL; 1857ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 185805b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com const char stem_chars[] = {'i', 'I', '!', '1'}; 185905b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com int16_t min_width; 186005b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com unsigned glyphCount; 186105b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com 1862ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // To request design units, create a logical font whose height is specified 1863ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // as unitsPerEm. 1864ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com OUTLINETEXTMETRIC otm; 186539698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com unsigned int otmRet = GetOutlineTextMetrics(hdc, sizeof(otm), &otm); 186639698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (0 == otmRet) { 1867055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com call_ensure_accessible(lf); 186839698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com otmRet = GetOutlineTextMetrics(hdc, sizeof(otm), &otm); 186939698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 187039698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (!otmRet || !GetTextFace(hdc, LF_FACESIZE, lf.lfFaceName)) { 1871ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com goto Error; 1872ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1873ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com lf.lfHeight = -SkToS32(otm.otmEMSquare); 1874ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com designFont = CreateFontIndirect(&lf); 1875ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SelectObject(hdc, designFont); 1876ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (!GetOutlineTextMetrics(hdc, sizeof(otm), &otm)) { 1877ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com goto Error; 1878ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 18797bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com glyphCount = calculateGlyphCount(hdc, fLogFont); 1880ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1881ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info = new SkAdvancedTypefaceMetrics; 1882ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fEmSize = otm.otmEMSquare; 18835f209e64057e607e260c9bb4fee02d16c5f35f98vandebo@chromium.org info->fMultiMaster = false; 1884ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fLastGlyphID = SkToU16(glyphCount - 1); 1885ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle = 0; 18867103f182ce61280eacb35f1832df350b642a5381bungeman@google.com tchar_to_skstring(lf.lfFaceName, &info->fFontName); 1887ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 18886744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org if (perGlyphInfo & SkAdvancedTypefaceMetrics::kToUnicode_PerGlyphInfo) { 18896744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org populate_glyph_to_unicode(hdc, glyphCount, &(info->fGlyphToUnicode)); 18906744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 18916744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 1892d41e70de196e78e21e1001d23a7259785cbd0835vandebo@chromium.org if (glyphCount > 0 && 1893d41e70de196e78e21e1001d23a7259785cbd0835vandebo@chromium.org (otm.otmTextMetrics.tmPitchAndFamily & TMPF_TRUETYPE)) { 1894ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fType = SkAdvancedTypefaceMetrics::kTrueType_Font; 1895ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 1896ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fType = SkAdvancedTypefaceMetrics::kOther_Font; 1897ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fItalicAngle = 0; 1898ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fAscent = 0; 1899ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fDescent = 0; 1900ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStemV = 0; 1901ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fCapHeight = 0; 1902ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fBBox = SkIRect::MakeEmpty(); 1903390c6d7a9018e233a6519397ac6c739fb21a99efedisonn@google.com goto ReturnInfo; 1904ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 19055aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org 1906ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // If this bit is clear the font is a fixed pitch font. 1907ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (!(otm.otmTextMetrics.tmPitchAndFamily & TMPF_FIXED_PITCH)) { 1908ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kFixedPitch_Style; 1909ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1910ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (otm.otmTextMetrics.tmItalic) { 1911ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kItalic_Style; 1912ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1913ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (otm.otmTextMetrics.tmPitchAndFamily & FF_ROMAN) { 1914ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kSerif_Style; 1915ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else if (otm.otmTextMetrics.tmPitchAndFamily & FF_SCRIPT) { 1916ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kScript_Style; 1917ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1918ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1919ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // The main italic angle of the font, in tenths of a degree counterclockwise 1920ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // from vertical. 1921ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fItalicAngle = otm.otmItalicAngle / 10; 1922ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fAscent = SkToS16(otm.otmTextMetrics.tmAscent); 1923ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fDescent = SkToS16(-otm.otmTextMetrics.tmDescent); 1924ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // TODO(ctguil): Use alternate cap height calculation. 1925ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // MSDN says otmsCapEmHeight is not support but it is returning a value on 1926ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // my Win7 box. 1927ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fCapHeight = otm.otmsCapEmHeight; 1928ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fBBox = 1929ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkIRect::MakeLTRB(otm.otmrcFontBox.left, otm.otmrcFontBox.top, 1930ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com otm.otmrcFontBox.right, otm.otmrcFontBox.bottom); 1931ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1932ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Figure out a good guess for StemV - Min width of i, I, !, 1. 1933ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // This probably isn't very good with an italic font. 193405b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com min_width = SHRT_MAX; 1935ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStemV = 0; 1936ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com for (size_t i = 0; i < SK_ARRAY_COUNT(stem_chars); i++) { 1937ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ABC abcWidths; 1938ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (GetCharABCWidths(hdc, stem_chars[i], stem_chars[i], &abcWidths)) { 1939ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int16_t width = abcWidths.abcB; 1940ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (width > 0 && width < min_width) { 1941ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com min_width = width; 1942ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStemV = min_width; 1943ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1944ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1945ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1946ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 19475f209e64057e607e260c9bb4fee02d16c5f35f98vandebo@chromium.org // If bit 1 is set, the font may not be embedded in a document. 19485f209e64057e607e260c9bb4fee02d16c5f35f98vandebo@chromium.org // If bit 1 is clear, the font can be embedded. 19495f209e64057e607e260c9bb4fee02d16c5f35f98vandebo@chromium.org // If bit 2 is set, the embedding is read-only. 19505f209e64057e607e260c9bb4fee02d16c5f35f98vandebo@chromium.org if (otm.otmfsType & 0x1) { 19515f209e64057e607e260c9bb4fee02d16c5f35f98vandebo@chromium.org info->fType = SkAdvancedTypefaceMetrics::kNotEmbeddable_Font; 19525f209e64057e607e260c9bb4fee02d16c5f35f98vandebo@chromium.org } else if (perGlyphInfo & 19535f209e64057e607e260c9bb4fee02d16c5f35f98vandebo@chromium.org SkAdvancedTypefaceMetrics::kHAdvance_PerGlyphInfo) { 19545aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org if (info->fStyle & SkAdvancedTypefaceMetrics::kFixedPitch_Style) { 19555aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org appendRange(&info->fGlyphWidths, 0); 19565aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org info->fGlyphWidths->fAdvance.append(1, &min_width); 19575aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org finishRange(info->fGlyphWidths.get(), 0, 19585aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org SkAdvancedTypefaceMetrics::WidthRange::kDefault); 19595aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org } else { 19605aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org info->fGlyphWidths.reset( 196137ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org getAdvanceData(hdc, 196237ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org glyphCount, 196337ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org glyphIDs, 196437ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org glyphIDsCount, 196537ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org &getWidthAdvance)); 19665aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org } 1967ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1968ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1969ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comError: 1970390c6d7a9018e233a6519397ac6c739fb21a99efedisonn@google.comReturnInfo: 1971ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SelectObject(hdc, savefont); 1972ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteObject(designFont); 1973ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteObject(font); 1974ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteDC(hdc); 1975ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1976ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return info; 1977ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1978ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1979a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com//Dummy representation of a Base64 encoded GUID from create_unique_font_name. 1980a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#define BASE64_GUID_ID "XXXXXXXXXXXXXXXXXXXXXXXX" 1981a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com//Length of GUID representation from create_id, including NULL terminator. 1982a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#define BASE64_GUID_ID_LEN SK_ARRAY_COUNT(BASE64_GUID_ID) 1983a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1984a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comSK_COMPILE_ASSERT(BASE64_GUID_ID_LEN < LF_FACESIZE, GUID_longer_than_facesize); 1985a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1986a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 1987a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com NameID 6 Postscript names cannot have the character '/'. 1988a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com It would be easier to hex encode the GUID, but that is 32 bytes, 1989a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com and many systems have issues with names longer than 28 bytes. 1990a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com The following need not be any standard base64 encoding. 1991a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com The encoded value is never decoded. 1992a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com*/ 1993d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.comstatic const char postscript_safe_base64_encode[] = 1994a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com "ABCDEFGHIJKLMNOPQRSTUVWXYZ" 1995a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com "abcdefghijklmnopqrstuvwxyz" 1996a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com "0123456789-_="; 1997a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1998a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 1999a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com Formats a GUID into Base64 and places it into buffer. 2000a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com buffer should have space for at least BASE64_GUID_ID_LEN characters. 2001a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com The string will always be null terminated. 2002a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com XXXXXXXXXXXXXXXXXXXXXXXX0 2003a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 2004a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comstatic void format_guid_b64(const GUID& guid, char* buffer, size_t bufferSize) { 2005a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com SkASSERT(bufferSize >= BASE64_GUID_ID_LEN); 2006a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com size_t written = SkBase64::Encode(&guid, sizeof(guid), buffer, postscript_safe_base64_encode); 2007a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com SkASSERT(written < LF_FACESIZE); 2008a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com buffer[written] = '\0'; 2009a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com} 2010a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 2011a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 2012a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com Creates a Base64 encoded GUID and places it into buffer. 2013a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com buffer should have space for at least BASE64_GUID_ID_LEN characters. 2014a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com The string will always be null terminated. 2015a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com XXXXXXXXXXXXXXXXXXXXXXXX0 2016a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 2017a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comstatic HRESULT create_unique_font_name(char* buffer, size_t bufferSize) { 2018a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com GUID guid = {}; 2019a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com if (FAILED(CoCreateGuid(&guid))) { 2020a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return E_UNEXPECTED; 2021a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 2022a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com format_guid_b64(guid, buffer, bufferSize); 2023a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 2024a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return S_OK; 2025a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com} 2026a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 2027a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 2028a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com Introduces a font to GDI. On failure will return NULL. The returned handle 2029a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com should eventually be passed to RemoveFontMemResourceEx. 2030a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com*/ 2031a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comstatic HANDLE activate_font(SkData* fontData) { 2032a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com DWORD numFonts = 0; 2033a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com //AddFontMemResourceEx just copies the data, but does not specify const. 2034a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com HANDLE fontHandle = AddFontMemResourceEx(const_cast<void*>(fontData->data()), 20354b18f5767ab1df7fedf0ff2e3a9eac7f7c500c36bungeman@google.com static_cast<DWORD>(fontData->size()), 2036a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 0, 2037a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com &numFonts); 2038a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 2039a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com if (fontHandle != NULL && numFonts < 1) { 2040a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com RemoveFontMemResourceEx(fontHandle); 2041a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return NULL; 2042a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 2043a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 2044a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return fontHandle; 2045a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com} 2046a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 2047437eea160b2f605d9074106891288e85baaecfefreed@google.comstatic SkTypeface* create_from_stream(SkStream* stream) { 2048a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Create a unique and unpredictable font name. 2049a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Avoids collisions and access from CSS. 2050a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com char familyName[BASE64_GUID_ID_LEN]; 2051a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com const int familyNameSize = SK_ARRAY_COUNT(familyName); 2052a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com if (FAILED(create_unique_font_name(familyName, familyNameSize))) { 2053a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return NULL; 2054a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 2055d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com 2056a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Change the name of the font. 2057e9bbee397ce96aa6642a42823feb1d7c4a8ffd8bbungeman@google.com SkAutoTUnref<SkData> rewrittenFontData(SkOTUtils::RenameFont(stream, familyName, familyNameSize-1)); 2058e9bbee397ce96aa6642a42823feb1d7c4a8ffd8bbungeman@google.com if (NULL == rewrittenFontData.get()) { 2059a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return NULL; 2060a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 2061ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 2062a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Register the font with GDI. 2063e9bbee397ce96aa6642a42823feb1d7c4a8ffd8bbungeman@google.com HANDLE fontReference = activate_font(rewrittenFontData.get()); 2064a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com if (NULL == fontReference) { 2065a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return NULL; 2066a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 2067a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 2068a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Create the typeface. 2069a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com LOGFONT lf; 2070484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com logfont_for_name(familyName, &lf); 2071a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 2072a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return SkCreateFontMemResourceTypefaceFromLOGFONT(lf, fontReference); 2073ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 2074ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 20750042b9c2a2e6fe954cdfbcd5a5b7449cdf41a4c3reed@google.comSkStream* LogFontTypeface::onOpenStream(int* ttcIndex) const { 20760042b9c2a2e6fe954cdfbcd5a5b7449cdf41a4c3reed@google.com *ttcIndex = 0; 20770042b9c2a2e6fe954cdfbcd5a5b7449cdf41a4c3reed@google.com 2078f4c2622a1a3489988f2d85a81fdc132b17a92bddctguil@chromium.org const DWORD kTTCTag = 2079f4c2622a1a3489988f2d85a81fdc132b17a92bddctguil@chromium.org SkEndian_SwapBE32(SkSetFourByteTag('t', 't', 'c', 'f')); 20800042b9c2a2e6fe954cdfbcd5a5b7449cdf41a4c3reed@google.com LOGFONT lf = fLogFont; 2081ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 2082ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HDC hdc = ::CreateCompatibleDC(NULL); 208359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com HFONT font = CreateFontIndirect(&lf); 2084ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT savefont = (HFONT)SelectObject(hdc, font); 2085ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 2086d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org SkMemoryStream* stream = NULL; 2087d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org DWORD tables[2] = {kTTCTag, 0}; 2088d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org for (int i = 0; i < SK_ARRAY_COUNT(tables); i++) { 20894b18f5767ab1df7fedf0ff2e3a9eac7f7c500c36bungeman@google.com DWORD bufferSize = GetFontData(hdc, tables[i], 0, NULL, 0); 209039698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (bufferSize == GDI_ERROR) { 2091055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com call_ensure_accessible(lf); 209239698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com bufferSize = GetFontData(hdc, tables[i], 0, NULL, 0); 209339698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 2094d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org if (bufferSize != GDI_ERROR) { 2095d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org stream = new SkMemoryStream(bufferSize); 20964b18f5767ab1df7fedf0ff2e3a9eac7f7c500c36bungeman@google.com if (GetFontData(hdc, tables[i], 0, (void*)stream->getMemoryBase(), bufferSize)) { 2097d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org break; 2098d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org } else { 2099d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org delete stream; 2100d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org stream = NULL; 2101d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org } 2102d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org } 2103ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 2104ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 2105ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SelectObject(hdc, savefont); 2106ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteObject(font); 2107ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteDC(hdc); 2108ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 2109ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return stream; 2110ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 2111ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 21123c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.comstatic void bmpCharsToGlyphs(HDC hdc, const WCHAR* bmpChars, int count, uint16_t* glyphs, 21133c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com bool Ox1FHack) 21143c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com{ 21153c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com DWORD result = GetGlyphIndicesW(hdc, bmpChars, count, glyphs, GGI_MARK_NONEXISTING_GLYPHS); 21163c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (GDI_ERROR == result) { 21173c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com for (int i = 0; i < count; ++i) { 21183c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com glyphs[i] = 0; 21193c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21203c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com return; 21213c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21223c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 21233c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (Ox1FHack) { 21243c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com for (int i = 0; i < count; ++i) { 21253c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (0xFFFF == glyphs[i] || 0x1F == glyphs[i]) { 21263c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com glyphs[i] = 0; 21273c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21283c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21293c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } else { 21303c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com for (int i = 0; i < count; ++i) { 21313c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (0xFFFF == glyphs[i]){ 21323c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com glyphs[i] = 0; 21333c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21343c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21353c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21363c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com} 21373c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 21383c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.comstatic uint16_t nonBmpCharToGlyph(HDC hdc, SCRIPT_CACHE* scriptCache, const WCHAR utf16[2]) { 21393c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com uint16_t index = 0; 21403c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com // Use uniscribe to detemine glyph index for non-BMP characters. 21413c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com static const int numWCHAR = 2; 21423c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com static const int maxItems = 2; 21433c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com // MSDN states that this can be NULL, but some things don't work then. 21443c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com SCRIPT_CONTROL scriptControl = { 0 }; 21453c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com // Add extra item to SCRIPT_ITEM to work around a bug (now documented). 21463c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com // https://bugzilla.mozilla.org/show_bug.cgi?id=366643 21473c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com SCRIPT_ITEM si[maxItems + 1]; 21483c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com int numItems; 21493c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com HRZM(ScriptItemize(utf16, numWCHAR, maxItems, &scriptControl, NULL, si, &numItems), 21503c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com "Could not itemize character."); 21513c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 21523c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com // Sometimes ScriptShape cannot find a glyph for a non-BMP and returns 2 space glyphs. 21533c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com static const int maxGlyphs = 2; 21543c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com SCRIPT_VISATTR vsa[maxGlyphs]; 21553c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com WORD outGlyphs[maxGlyphs]; 21563c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com WORD logClust[numWCHAR]; 21573c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com int numGlyphs; 21583c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com HRZM(ScriptShape(hdc, scriptCache, utf16, numWCHAR, maxGlyphs, &si[0].a, 21593c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com outGlyphs, logClust, vsa, &numGlyphs), 21603c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com "Could not shape character."); 21613c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (1 == numGlyphs) { 21623c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com index = outGlyphs[0]; 21633c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21643c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com return index; 21653c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com} 21663c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 21673c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.comclass SkAutoHDC { 21683c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.compublic: 21693c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com SkAutoHDC(const LOGFONT& lf) 21703c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com : fHdc(::CreateCompatibleDC(NULL)) 21713c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com , fFont(::CreateFontIndirect(&lf)) 21723c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com , fSavefont((HFONT)SelectObject(fHdc, fFont)) 21733c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com { } 21743c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com ~SkAutoHDC() { 21753c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com SelectObject(fHdc, fSavefont); 21763c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com DeleteObject(fFont); 21773c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com DeleteDC(fHdc); 21783c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21793c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com operator HDC() { return fHdc; } 21803c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.comprivate: 21813c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com HDC fHdc; 21823c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com HFONT fFont; 21833c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com HFONT fSavefont; 21843c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com}; 2185e61a86cfa00ea393ecc4a71fca94e1d476a37ecccommit-bot@chromium.org#define SkAutoHDC(...) SK_REQUIRE_LOCAL_VAR(SkAutoHDC) 21863c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 21873c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.comint LogFontTypeface::onCharsToGlyphs(const void* chars, Encoding encoding, 21883c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com uint16_t userGlyphs[], int glyphCount) const 21893c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com{ 21903c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com SkAutoHDC hdc(fLogFont); 21913c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 21923c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com TEXTMETRIC tm; 21933c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (0 == GetTextMetrics(hdc, &tm)) { 21943c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com call_ensure_accessible(fLogFont); 21953c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (0 == GetTextMetrics(hdc, &tm)) { 21963c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com tm.tmPitchAndFamily = TMPF_TRUETYPE; 21973c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21983c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21993c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com bool Ox1FHack = !(tm.tmPitchAndFamily & TMPF_VECTOR) /*&& winVer < Vista */; 22003c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 22013c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com SkAutoSTMalloc<256, uint16_t> scratchGlyphs; 22023c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com uint16_t* glyphs; 22033c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (userGlyphs != NULL) { 22043c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com glyphs = userGlyphs; 22053c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } else { 22063c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com glyphs = scratchGlyphs.reset(glyphCount); 22073c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 22083c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 22093c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com SCRIPT_CACHE sc = 0; 22103c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com switch (encoding) { 22113c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com case SkTypeface::kUTF8_Encoding: { 22123c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com static const int scratchCount = 256; 22133c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com WCHAR scratch[scratchCount]; 22143c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com int glyphIndex = 0; 22153c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com const char* currentUtf8 = reinterpret_cast<const char*>(chars); 22163c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com SkUnichar currentChar; 22173c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (glyphCount) { 22183c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com currentChar = SkUTF8_NextUnichar(¤tUtf8); 22193c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 22203c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com while (glyphIndex < glyphCount) { 22213c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com // Try a run of bmp. 22223c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com int glyphsLeft = SkTMin(glyphCount - glyphIndex, scratchCount); 22233c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com int runLength = 0; 22243c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com while (runLength < glyphsLeft && currentChar <= 0xFFFF) { 22253c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com scratch[runLength] = static_cast<WCHAR>(currentChar); 22263c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com ++runLength; 22273c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (runLength < glyphsLeft) { 22283c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com currentChar = SkUTF8_NextUnichar(¤tUtf8); 22293c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 22303c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 22313c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (runLength) { 22323c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com bmpCharsToGlyphs(hdc, scratch, runLength, &glyphs[glyphIndex], Ox1FHack); 22333c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com glyphIndex += runLength; 22343c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 22353c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 22363c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com // Try a run of non-bmp. 22373c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com while (glyphIndex < glyphCount && currentChar > 0xFFFF) { 22383c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com SkUTF16_FromUnichar(currentChar, reinterpret_cast<uint16_t*>(scratch)); 22393c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com glyphs[glyphIndex] = nonBmpCharToGlyph(hdc, &sc, scratch); 22403c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com ++glyphIndex; 22413c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (glyphIndex < glyphCount) { 22423c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com currentChar = SkUTF8_NextUnichar(¤tUtf8); 22433c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 22443c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 22453c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 22463c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com break; 22473c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 22483c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com case SkTypeface::kUTF16_Encoding: { 22493c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com int glyphIndex = 0; 22503c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com const WCHAR* currentUtf16 = reinterpret_cast<const WCHAR*>(chars); 22513c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com while (glyphIndex < glyphCount) { 22523c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com // Try a run of bmp. 22533c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com int glyphsLeft = glyphCount - glyphIndex; 22543c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com int runLength = 0; 22553c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com while (runLength < glyphsLeft && !SkUTF16_IsHighSurrogate(currentUtf16[runLength])) { 22563c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com ++runLength; 22573c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 22583c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (runLength) { 22593c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com bmpCharsToGlyphs(hdc, currentUtf16, runLength, &glyphs[glyphIndex], Ox1FHack); 22603c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com glyphIndex += runLength; 22613c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com currentUtf16 += runLength; 22623c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 22633c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 22643c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com // Try a run of non-bmp. 22653c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com while (glyphIndex < glyphCount && SkUTF16_IsHighSurrogate(*currentUtf16)) { 22663c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com glyphs[glyphIndex] = nonBmpCharToGlyph(hdc, &sc, currentUtf16); 22673c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com ++glyphIndex; 22683c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com currentUtf16 += 2; 22693c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 22703c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 22713c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com break; 22723c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 22733c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com case SkTypeface::kUTF32_Encoding: { 22743c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com static const int scratchCount = 256; 22753c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com WCHAR scratch[scratchCount]; 22763c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com int glyphIndex = 0; 22773c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com const uint32_t* utf32 = reinterpret_cast<const uint32_t*>(chars); 22783c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com while (glyphIndex < glyphCount) { 22793c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com // Try a run of bmp. 22803c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com int glyphsLeft = SkTMin(glyphCount - glyphIndex, scratchCount); 22813c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com int runLength = 0; 22823c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com while (runLength < glyphsLeft && utf32[glyphIndex + runLength] <= 0xFFFF) { 22833c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com scratch[runLength] = static_cast<WCHAR>(utf32[glyphIndex + runLength]); 22843c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com ++runLength; 22853c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 22863c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (runLength) { 22873c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com bmpCharsToGlyphs(hdc, scratch, runLength, &glyphs[glyphIndex], Ox1FHack); 22883c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com glyphIndex += runLength; 22893c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 22903c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 22913c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com // Try a run of non-bmp. 22923c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com while (glyphIndex < glyphCount && utf32[glyphIndex] > 0xFFFF) { 22933c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com SkUTF16_FromUnichar(utf32[glyphIndex], reinterpret_cast<uint16_t*>(scratch)); 22943c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com glyphs[glyphIndex] = nonBmpCharToGlyph(hdc, &sc, scratch); 22953c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com ++glyphIndex; 22963c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 22973c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 22983c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com break; 22993c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 23003c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com default: 23013c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com SK_CRASH(); 23023c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 23033c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 23043c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (sc) { 23053c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com ::ScriptFreeCache(&sc); 23063c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 23073c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 23083c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com for (int i = 0; i < glyphCount; ++i) { 23093c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (0 == glyphs[i]) { 23103c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com return i; 23113c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 23123c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 23133c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com return glyphCount; 23143c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com} 23153c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 23167bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.comint LogFontTypeface::onCountGlyphs() const { 23177bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com HDC hdc = ::CreateCompatibleDC(NULL); 23187bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com HFONT font = CreateFontIndirect(&fLogFont); 23197bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com HFONT savefont = (HFONT)SelectObject(hdc, font); 23207bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 23217bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com unsigned int glyphCount = calculateGlyphCount(hdc, fLogFont); 23227bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 23237bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com SelectObject(hdc, savefont); 23247bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com DeleteObject(font); 23257bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com DeleteDC(hdc); 23267bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 23277bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com return glyphCount; 23287bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com} 23297bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 23307bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.comint LogFontTypeface::onGetUPEM() const { 23317bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com HDC hdc = ::CreateCompatibleDC(NULL); 23327bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com HFONT font = CreateFontIndirect(&fLogFont); 23337bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com HFONT savefont = (HFONT)SelectObject(hdc, font); 23347bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 23357bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com unsigned int upem = calculateUPEM(hdc, fLogFont); 23367bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 23377bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com SelectObject(hdc, savefont); 23387bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com DeleteObject(font); 23397bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com DeleteDC(hdc); 23407bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 23417bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com return upem; 23427bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com} 23437bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 2344839702b61934914118ec557dd641be322eba3b5fbungeman@google.comSkTypeface::LocalizedStrings* LogFontTypeface::onCreateFamilyNameIterator() const { 2345a980269c2498836101146adc729ef780fb89824ebungeman@google.com SkTypeface::LocalizedStrings* nameIter = 2346a980269c2498836101146adc729ef780fb89824ebungeman@google.com SkOTUtils::LocalizedStrings_NameTable::CreateForFamilyNames(*this); 2347a980269c2498836101146adc729ef780fb89824ebungeman@google.com if (NULL == nameIter) { 2348a980269c2498836101146adc729ef780fb89824ebungeman@google.com SkString familyName; 2349a980269c2498836101146adc729ef780fb89824ebungeman@google.com this->getFamilyName(&familyName); 2350a980269c2498836101146adc729ef780fb89824ebungeman@google.com SkString language("und"); //undetermined 2351a980269c2498836101146adc729ef780fb89824ebungeman@google.com nameIter = new SkOTUtils::LocalizedStrings_SingleName(familyName, language); 2352a980269c2498836101146adc729ef780fb89824ebungeman@google.com } 2353a980269c2498836101146adc729ef780fb89824ebungeman@google.com return nameIter; 2354a980269c2498836101146adc729ef780fb89824ebungeman@google.com} 2355a980269c2498836101146adc729ef780fb89824ebungeman@google.com 2356b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.comint LogFontTypeface::onGetTableTags(SkFontTableTag tags[]) const { 2357b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com SkSFNTHeader header; 2358b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com if (sizeof(header) != this->onGetTableData(0, 0, sizeof(header), &header)) { 2359b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com return 0; 2360b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com } 2361b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com 2362b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com int numTables = SkEndian_SwapBE16(header.numTables); 2363b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com 2364b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com if (tags) { 2365b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com size_t size = numTables * sizeof(SkSFNTHeader::TableDirectoryEntry); 2366b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com SkAutoSTMalloc<0x20, SkSFNTHeader::TableDirectoryEntry> dir(numTables); 2367b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com if (size != this->onGetTableData(0, sizeof(header), size, dir.get())) { 2368b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com return 0; 2369b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com } 2370b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com 2371b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com for (int i = 0; i < numTables; ++i) { 2372b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com tags[i] = SkEndian_SwapBE32(dir[i].tag); 2373b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com } 2374b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com } 2375b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com return numTables; 2376b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com} 2377b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com 2378b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.comsize_t LogFontTypeface::onGetTableData(SkFontTableTag tag, size_t offset, 2379b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com size_t length, void* data) const 2380b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com{ 2381b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com LOGFONT lf = fLogFont; 2382b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com 2383b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com HDC hdc = ::CreateCompatibleDC(NULL); 2384b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com HFONT font = CreateFontIndirect(&lf); 2385b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com HFONT savefont = (HFONT)SelectObject(hdc, font); 2386b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com 2387b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com tag = SkEndian_SwapBE32(tag); 2388b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com if (NULL == data) { 2389b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com length = 0; 2390b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com } 23918b169311b59ab84e8ca6f3630a1e960cc1be751erobertphillips@google.com DWORD bufferSize = GetFontData(hdc, tag, (DWORD) offset, data, (DWORD) length); 2392b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com if (bufferSize == GDI_ERROR) { 2393b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com call_ensure_accessible(lf); 23948b169311b59ab84e8ca6f3630a1e960cc1be751erobertphillips@google.com bufferSize = GetFontData(hdc, tag, (DWORD) offset, data, (DWORD) length); 2395b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com } 2396b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com 2397b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com SelectObject(hdc, savefont); 2398b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com DeleteObject(font); 2399b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com DeleteDC(hdc); 2400b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com 2401b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com return bufferSize == GDI_ERROR ? 0 : bufferSize; 2402b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com} 2403b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com 24040da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.comSkScalerContext* LogFontTypeface::onCreateScalerContext(const SkDescriptor* desc) const { 240530ddd615c447fed73286151b463af20d309c85f1reed@google.com SkScalerContext_GDI* ctx = SkNEW_ARGS(SkScalerContext_GDI, 240684e22d847fc84727bc220947162363ee1fe068fcreed@google.com (const_cast<LogFontTypeface*>(this), desc)); 240784e22d847fc84727bc220947162363ee1fe068fcreed@google.com if (!ctx->isValid()) { 240884e22d847fc84727bc220947162363ee1fe068fcreed@google.com SkDELETE(ctx); 240984e22d847fc84727bc220947162363ee1fe068fcreed@google.com ctx = NULL; 241084e22d847fc84727bc220947162363ee1fe068fcreed@google.com } 241184e22d847fc84727bc220947162363ee1fe068fcreed@google.com return ctx; 2412ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 2413ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 24140da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.comvoid LogFontTypeface::onFilterRec(SkScalerContextRec* rec) const { 2415c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org if (rec->fFlags & SkScalerContext::kLCD_BGROrder_Flag || 2416c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org rec->fFlags & SkScalerContext::kLCD_Vertical_Flag) 2417c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org { 2418c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org rec->fMaskFormat = SkMask::kA8_Format; 2419c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org rec->fFlags |= SkScalerContext::kGenA8FromLCD_Flag; 2420c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org } 2421c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org 2422e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com unsigned flagsWeDontSupport = SkScalerContext::kDevKernText_Flag | 2423f6f56878bc96386882721b15ba610984185d3dc9bungeman@google.com SkScalerContext::kForceAutohinting_Flag | 2424e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kEmbeddedBitmapText_Flag | 2425e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kEmbolden_Flag | 2426e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kLCD_BGROrder_Flag | 2427e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kLCD_Vertical_Flag; 2428e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com rec->fFlags &= ~flagsWeDontSupport; 2429e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com 2430e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkPaint::Hinting h = rec->getHinting(); 2431e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com switch (h) { 2432e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kNo_Hinting: 24330abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com break; 2434e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kSlight_Hinting: 24350abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // Only do slight hinting when axis aligned. 24367c86d8eb3a61eae188bc8af2cd0363858eaea07ebungeman@google.com // TODO: re-enable slight hinting when FontHostTest can pass. 24377c86d8eb3a61eae188bc8af2cd0363858eaea07ebungeman@google.com //if (!isAxisAligned(*rec)) { 24380abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com h = SkPaint::kNo_Hinting; 24397c86d8eb3a61eae188bc8af2cd0363858eaea07ebungeman@google.com //} 2440e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com break; 2441e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kNormal_Hinting: 2442e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kFull_Hinting: 24430abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // TODO: need to be able to distinguish subpixel positioned glyphs 24440abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // and linear metrics. 24450abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com //rec->fFlags &= ~SkScalerContext::kSubpixelPositioning_Flag; 2446e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com h = SkPaint::kNormal_Hinting; 2447e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com break; 2448e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com default: 24490c00f21fee3f5cfa3aa7e5d46ff94cb8cf340451tomhudson@google.com SkDEBUGFAIL("unknown hinting"); 2450e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com } 24510abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com //TODO: if this is a bitmap font, squash hinting and subpixel. 2452e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com rec->setHinting(h); 2453da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com 24549181aa84aa288d2bc3ab079b6b40a79ac87d8807reed@google.com// turn this off since GDI might turn A8 into BW! Need a bigger fix. 24559181aa84aa288d2bc3ab079b6b40a79ac87d8807reed@google.com#if 0 2456da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com // Disable LCD when rotated, since GDI's output is ugly 2457da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com if (isLCD(*rec) && !isAxisAligned(*rec)) { 2458da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com rec->fMaskFormat = SkMask::kA8_Format; 2459da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com } 24609181aa84aa288d2bc3ab079b6b40a79ac87d8807reed@google.com#endif 2461754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com 24620da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.com if (!fCanBeLCD && isLCD(*rec)) { 2463cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com rec->fMaskFormat = SkMask::kA8_Format; 2464cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com rec->fFlags &= ~SkScalerContext::kGenA8FromLCD_Flag; 2465754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } 2466754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com} 2467070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.com 2468070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.com/////////////////////////////////////////////////////////////////////////////// 2469070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.com 2470070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.com#include "SkFontMgr.h" 2471484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com#include "SkDataTable.h" 2472484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2473a980269c2498836101146adc729ef780fb89824ebungeman@google.comstatic bool valid_logfont_for_enum(const LOGFONT& lf) { 2474a980269c2498836101146adc729ef780fb89824ebungeman@google.com // TODO: Vector FON is unsupported and should not be listed. 2475a980269c2498836101146adc729ef780fb89824ebungeman@google.com return 2476a980269c2498836101146adc729ef780fb89824ebungeman@google.com // Ignore implicit vertical variants. 2477a980269c2498836101146adc729ef780fb89824ebungeman@google.com lf.lfFaceName[0] && lf.lfFaceName[0] != '@' 2478a980269c2498836101146adc729ef780fb89824ebungeman@google.com 2479a980269c2498836101146adc729ef780fb89824ebungeman@google.com // DEFAULT_CHARSET is used to get all fonts, but also implies all 2480a980269c2498836101146adc729ef780fb89824ebungeman@google.com // character sets. Filter assuming all fonts support ANSI_CHARSET. 2481a980269c2498836101146adc729ef780fb89824ebungeman@google.com && ANSI_CHARSET == lf.lfCharSet 2482a980269c2498836101146adc729ef780fb89824ebungeman@google.com ; 2483a980269c2498836101146adc729ef780fb89824ebungeman@google.com} 2484a980269c2498836101146adc729ef780fb89824ebungeman@google.com 2485a980269c2498836101146adc729ef780fb89824ebungeman@google.com/** An EnumFontFamExProc implementation which interprets builderParam as 2486a980269c2498836101146adc729ef780fb89824ebungeman@google.com * an SkTDArray<ENUMLOGFONTEX>* and appends logfonts which 2487a980269c2498836101146adc729ef780fb89824ebungeman@google.com * pass the valid_logfont_for_enum predicate. 2488a980269c2498836101146adc729ef780fb89824ebungeman@google.com */ 2489a980269c2498836101146adc729ef780fb89824ebungeman@google.comstatic int CALLBACK enum_family_proc(const LOGFONT* lf, const TEXTMETRIC*, 2490a980269c2498836101146adc729ef780fb89824ebungeman@google.com DWORD fontType, LPARAM builderParam) { 2491a980269c2498836101146adc729ef780fb89824ebungeman@google.com if (valid_logfont_for_enum(*lf)) { 2492a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com SkTDArray<ENUMLOGFONTEX>* array = (SkTDArray<ENUMLOGFONTEX>*)builderParam; 2493a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com *array->append() = *(ENUMLOGFONTEX*)lf; 2494484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2495484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return 1; // non-zero means continue 2496484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com} 2497484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2498484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comstatic SkFontStyle compute_fontstyle(const LOGFONT& lf) { 2499484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return SkFontStyle(lf.lfWeight, SkFontStyle::kNormal_Width, 2500484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com lf.lfItalic ? SkFontStyle::kItalic_Slant 2501484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com : SkFontStyle::kUpright_Slant); 2502484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com} 2503484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2504484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comclass SkFontStyleSetGDI : public SkFontStyleSet { 2505484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.compublic: 2506a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com SkFontStyleSetGDI(const TCHAR familyName[]) { 2507a980269c2498836101146adc729ef780fb89824ebungeman@google.com LOGFONT lf; 2508a980269c2498836101146adc729ef780fb89824ebungeman@google.com sk_bzero(&lf, sizeof(lf)); 2509a980269c2498836101146adc729ef780fb89824ebungeman@google.com lf.lfCharSet = DEFAULT_CHARSET; 2510a980269c2498836101146adc729ef780fb89824ebungeman@google.com _tcscpy_s(lf.lfFaceName, familyName); 2511a980269c2498836101146adc729ef780fb89824ebungeman@google.com 2512484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com HDC hdc = ::CreateCompatibleDC(NULL); 2513a980269c2498836101146adc729ef780fb89824ebungeman@google.com ::EnumFontFamiliesEx(hdc, &lf, enum_family_proc, (LPARAM)&fArray, 0); 2514484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ::DeleteDC(hdc); 2515484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2516484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2517484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual int count() SK_OVERRIDE { 2518484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return fArray.count(); 2519484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2520484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2521484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual void getStyle(int index, SkFontStyle* fs, SkString* styleName) SK_OVERRIDE { 2522484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com if (fs) { 2523a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com *fs = compute_fontstyle(fArray[index].elfLogFont); 2524a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com } 2525a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com if (styleName) { 2526a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com const ENUMLOGFONTEX& ref = fArray[index]; 2527a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com // For some reason, ENUMLOGFONTEX and LOGFONT disagree on their type in the 2528a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com // non-unicode version. 2529a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com // ENUMLOGFONTEX uses BYTE 2530a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com // LOGFONT uses CHAR 2531a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com // Here we assert they that the style name is logically the same (size) as 2532a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com // a TCHAR, so we can use the same converter function. 2533a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com SkASSERT(sizeof(TCHAR) == sizeof(ref.elfStyle[0])); 2534a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com tchar_to_skstring((const TCHAR*)ref.elfStyle, styleName); 2535484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2536484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2537484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2538484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual SkTypeface* createTypeface(int index) SK_OVERRIDE { 2539a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com return SkCreateTypefaceFromLOGFONT(fArray[index].elfLogFont); 2540484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2541484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2542484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual SkTypeface* matchStyle(const SkFontStyle& pattern) SK_OVERRIDE { 2543484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com // todo: 2544a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com return SkCreateTypefaceFromLOGFONT(fArray[0].elfLogFont); 2545484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2546484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2547484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comprivate: 2548a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com SkTDArray<ENUMLOGFONTEX> fArray; 2549484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com}; 2550484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2551484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comclass SkFontMgrGDI : public SkFontMgr { 2552a980269c2498836101146adc729ef780fb89824ebungeman@google.compublic: 2553a980269c2498836101146adc729ef780fb89824ebungeman@google.com SkFontMgrGDI() { 2554484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com LOGFONT lf; 2555484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com sk_bzero(&lf, sizeof(lf)); 2556484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com lf.lfCharSet = DEFAULT_CHARSET; 2557484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2558484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com HDC hdc = ::CreateCompatibleDC(NULL); 2559484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ::EnumFontFamiliesEx(hdc, &lf, enum_family_proc, (LPARAM)&fLogFontArray, 0); 2560484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ::DeleteDC(hdc); 2561484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2562484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2563484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comprotected: 2564484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual int onCountFamilies() SK_OVERRIDE { 2565484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return fLogFontArray.count(); 2566484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2567484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2568484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual void onGetFamilyName(int index, SkString* familyName) SK_OVERRIDE { 2569484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com SkASSERT((unsigned)index < (unsigned)fLogFontArray.count()); 2570a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com tchar_to_skstring(fLogFontArray[index].elfLogFont.lfFaceName, familyName); 2571484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2572484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2573484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual SkFontStyleSet* onCreateStyleSet(int index) SK_OVERRIDE { 2574484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com SkASSERT((unsigned)index < (unsigned)fLogFontArray.count()); 2575a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com return SkNEW_ARGS(SkFontStyleSetGDI, (fLogFontArray[index].elfLogFont.lfFaceName)); 2576484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2577484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2578484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual SkFontStyleSet* onMatchFamily(const char familyName[]) SK_OVERRIDE { 2579484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com if (NULL == familyName) { 2580484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com familyName = ""; // do we need this check??? 2581484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2582484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com LOGFONT lf; 2583484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com logfont_for_name(familyName, &lf); 2584a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com return SkNEW_ARGS(SkFontStyleSetGDI, (lf.lfFaceName)); 2585484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2586484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2587484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual SkTypeface* onMatchFamilyStyle(const char familyName[], 2588484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com const SkFontStyle& fontstyle) SK_OVERRIDE { 2589437eea160b2f605d9074106891288e85baaecfefreed@google.com // could be in base impl 2590484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com SkAutoTUnref<SkFontStyleSet> sset(this->matchFamily(familyName)); 2591484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return sset->matchStyle(fontstyle); 2592484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2593484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2594484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual SkTypeface* onMatchFaceStyle(const SkTypeface* familyMember, 2595484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com const SkFontStyle& fontstyle) SK_OVERRIDE { 2596437eea160b2f605d9074106891288e85baaecfefreed@google.com // could be in base impl 2597484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com SkString familyName; 2598484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ((LogFontTypeface*)familyMember)->getFamilyName(&familyName); 2599484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return this->matchFamilyStyle(familyName.c_str(), fontstyle); 2600484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2601484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2602437eea160b2f605d9074106891288e85baaecfefreed@google.com virtual SkTypeface* onCreateFromStream(SkStream* stream, int ttcIndex) SK_OVERRIDE { 2603437eea160b2f605d9074106891288e85baaecfefreed@google.com return create_from_stream(stream); 2604484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2605437eea160b2f605d9074106891288e85baaecfefreed@google.com 2606437eea160b2f605d9074106891288e85baaecfefreed@google.com virtual SkTypeface* onCreateFromData(SkData* data, int ttcIndex) SK_OVERRIDE { 2607437eea160b2f605d9074106891288e85baaecfefreed@google.com // could be in base impl 2608437eea160b2f605d9074106891288e85baaecfefreed@google.com SkAutoTUnref<SkStream> stream(SkNEW_ARGS(SkMemoryStream, (data))); 2609437eea160b2f605d9074106891288e85baaecfefreed@google.com return this->createFromStream(stream); 2610484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2611437eea160b2f605d9074106891288e85baaecfefreed@google.com 2612484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual SkTypeface* onCreateFromFile(const char path[], int ttcIndex) SK_OVERRIDE { 2613437eea160b2f605d9074106891288e85baaecfefreed@google.com // could be in base impl 2614437eea160b2f605d9074106891288e85baaecfefreed@google.com SkAutoTUnref<SkStream> stream(SkStream::NewFromFile(path)); 2615437eea160b2f605d9074106891288e85baaecfefreed@google.com return this->createFromStream(stream); 2616484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2617484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 261830ddd615c447fed73286151b463af20d309c85f1reed@google.com virtual SkTypeface* onLegacyCreateTypeface(const char familyName[], 261930ddd615c447fed73286151b463af20d309c85f1reed@google.com unsigned styleBits) SK_OVERRIDE { 2620f7159bba8efc13f6b3a9a86e92b48451b6aa8073bungeman@google.com LOGFONT lf; 2621f7159bba8efc13f6b3a9a86e92b48451b6aa8073bungeman@google.com if (NULL == familyName) { 2622f7159bba8efc13f6b3a9a86e92b48451b6aa8073bungeman@google.com lf = get_default_font(); 2623f7159bba8efc13f6b3a9a86e92b48451b6aa8073bungeman@google.com } else { 2624f7159bba8efc13f6b3a9a86e92b48451b6aa8073bungeman@google.com logfont_for_name(familyName, &lf); 2625f7159bba8efc13f6b3a9a86e92b48451b6aa8073bungeman@google.com } 2626f7159bba8efc13f6b3a9a86e92b48451b6aa8073bungeman@google.com setStyle(&lf, (SkTypeface::Style)styleBits); 2627f7159bba8efc13f6b3a9a86e92b48451b6aa8073bungeman@google.com return SkCreateTypefaceFromLOGFONT(lf); 262830ddd615c447fed73286151b463af20d309c85f1reed@google.com } 262930ddd615c447fed73286151b463af20d309c85f1reed@google.com 2630484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comprivate: 2631a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com SkTDArray<ENUMLOGFONTEX> fLogFontArray; 2632484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com}; 2633070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.com 263430ddd615c447fed73286151b463af20d309c85f1reed@google.com/////////////////////////////////////////////////////////////////////////////// 263530ddd615c447fed73286151b463af20d309c85f1reed@google.com 2636bfc6cc4b6c41e99d3887d268fbf798aa3abc9a27bungeman@google.comSkFontMgr* SkFontMgr_New_GDI() { 2637484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return SkNEW(SkFontMgrGDI); 2638070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.com} 2639