SkFontHost_win.cpp revision a980269c2498836101146adc729ef780fb89824e
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" 1797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com#include "SkMaskGamma.h" 187bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com#include "SkOTTable_maxp.h" 19a980269c2498836101146adc729ef780fb89824ebungeman@google.com#include "SkOTTable_name.h" 20a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include "SkOTUtils.h" 2127889877c0e3c909dd4afd7b5e7b1d58cbf61ae6reed@google.com#include "SkPath.h" 22b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com#include "SkSFNTHeader.h" 23ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkStream.h" 24a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include "SkString.h" 2505a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com#include "SkTemplates.h" 26ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkThread.h" 27ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkTypeface_win.h" 2859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com#include "SkTypefaceCache.h" 29ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkUtils.h" 30ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 31a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include "SkTypes.h" 32a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include <tchar.h> 33a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include <usp10.h> 34a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include <objbase.h> 35ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 36f210f505ffffccc15ae5e91f8ccb9763ba7fc152reed@google.comstatic void (*gEnsureLOGFONTAccessibleProc)(const LOGFONT&); 37f210f505ffffccc15ae5e91f8ccb9763ba7fc152reed@google.com 38f210f505ffffccc15ae5e91f8ccb9763ba7fc152reed@google.comvoid SkTypeface_SetEnsureLOGFONTAccessibleProc(void (*proc)(const LOGFONT&)) { 39f210f505ffffccc15ae5e91f8ccb9763ba7fc152reed@google.com gEnsureLOGFONTAccessibleProc = proc; 40f210f505ffffccc15ae5e91f8ccb9763ba7fc152reed@google.com} 41f210f505ffffccc15ae5e91f8ccb9763ba7fc152reed@google.com 42055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.comstatic void call_ensure_accessible(const LOGFONT& lf) { 43055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com if (gEnsureLOGFONTAccessibleProc) { 44055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com gEnsureLOGFONTAccessibleProc(lf); 45055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com } 46055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com} 47055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com 48055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com/////////////////////////////////////////////////////////////////////////////// 49055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com 506f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com// always packed xxRRGGBB 516f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.comtypedef uint32_t SkGdiRGB; 526f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com 53a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com// define this in your Makefile or .gyp to enforce AA requests 54a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com// which GDI ignores at small sizes. This flag guarantees AA 55a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com// for rotated text, regardless of GDI's notions. 56a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com//#define SK_ENFORCE_ROTATED_TEXT_AA_ON_WINDOWS 57a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 5882a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.comstatic bool isLCD(const SkScalerContext::Rec& rec) { 5982a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com return SkMask::kLCD16_Format == rec.fMaskFormat || 6082a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com SkMask::kLCD32_Format == rec.fMaskFormat; 6182a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com} 6282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 63a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.comstatic bool bothZero(SkScalar a, SkScalar b) { 64a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com return 0 == a && 0 == b; 65a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com} 66a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 67a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com// returns false if there is any non-90-rotation or skew 68a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.comstatic bool isAxisAligned(const SkScalerContext::Rec& rec) { 69a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com return 0 == rec.fPreSkewX && 70a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com (bothZero(rec.fPost2x2[0][1], rec.fPost2x2[1][0]) || 71a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com bothZero(rec.fPost2x2[0][0], rec.fPost2x2[1][1])); 72a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com} 73a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 74a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.comstatic bool needToRenderWithSkia(const SkScalerContext::Rec& rec) { 75a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com#ifdef SK_ENFORCE_ROTATED_TEXT_AA_ON_WINDOWS 76a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // What we really want to catch is when GDI will ignore the AA request and give 77a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // us BW instead. Smallish rotated text is one heuristic, so this code is just 78a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // an approximation. We shouldn't need to do this for larger sizes, but at those 79a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // sizes, the quality difference gets less and less between our general 80a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // scanconverter and GDI's. 81a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com if (SkMask::kA8_Format == rec.fMaskFormat && !isAxisAligned(rec)) { 82a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com return true; 83a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com } 84a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com#endif 850abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return rec.getHinting() == SkPaint::kNo_Hinting || rec.getHinting() == SkPaint::kSlight_Hinting; 86a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com} 87a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 88ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comusing namespace skia_advanced_typeface_metrics_utils; 89ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 90a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.comstatic void tchar_to_skstring(const TCHAR t[], SkString* s) { 91484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com#ifdef UNICODE 92484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com size_t sSize = WideCharToMultiByte(CP_UTF8, 0, t, -1, NULL, 0, NULL, NULL); 93484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com s->resize(sSize); 94484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com WideCharToMultiByte(CP_UTF8, 0, t, -1, s->writable_str(), sSize, NULL, NULL); 95484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com#else 96484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com s->set(t); 97484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com#endif 98484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com} 99484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 100a980269c2498836101146adc729ef780fb89824ebungeman@google.comstatic void dcfontname_to_skstring(HDC deviceContext, const LOGFONT& lf, SkString* familyName) { 101a980269c2498836101146adc729ef780fb89824ebungeman@google.com int fontNameLen; //length of fontName in TCHARS. 102a980269c2498836101146adc729ef780fb89824ebungeman@google.com if (0 == (fontNameLen = GetTextFace(deviceContext, 0, NULL))) { 103a980269c2498836101146adc729ef780fb89824ebungeman@google.com call_ensure_accessible(lf); 104a980269c2498836101146adc729ef780fb89824ebungeman@google.com if (0 == (fontNameLen = GetTextFace(deviceContext, 0, NULL))) { 105a980269c2498836101146adc729ef780fb89824ebungeman@google.com fontNameLen = 0; 106a980269c2498836101146adc729ef780fb89824ebungeman@google.com } 107a980269c2498836101146adc729ef780fb89824ebungeman@google.com } 108a980269c2498836101146adc729ef780fb89824ebungeman@google.com 109a980269c2498836101146adc729ef780fb89824ebungeman@google.com SkAutoSTArray<LF_FULLFACESIZE, TCHAR> fontName(fontNameLen+1); 110a980269c2498836101146adc729ef780fb89824ebungeman@google.com if (0 == GetTextFace(deviceContext, fontNameLen, fontName.get())) { 111a980269c2498836101146adc729ef780fb89824ebungeman@google.com call_ensure_accessible(lf); 112a980269c2498836101146adc729ef780fb89824ebungeman@google.com if (0 == GetTextFace(deviceContext, fontNameLen, fontName.get())) { 113a980269c2498836101146adc729ef780fb89824ebungeman@google.com fontName[0] = 0; 114a980269c2498836101146adc729ef780fb89824ebungeman@google.com } 115a980269c2498836101146adc729ef780fb89824ebungeman@google.com } 116a980269c2498836101146adc729ef780fb89824ebungeman@google.com 117a980269c2498836101146adc729ef780fb89824ebungeman@google.com tchar_to_skstring(fontName.get(), familyName); 118a980269c2498836101146adc729ef780fb89824ebungeman@google.com} 119a980269c2498836101146adc729ef780fb89824ebungeman@google.com 120ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic void make_canonical(LOGFONT* lf) { 1210abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com lf->lfHeight = -2048; 12259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf->lfQuality = CLEARTYPE_QUALITY;//PROOF_QUALITY; 12359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf->lfCharSet = DEFAULT_CHARSET; 12482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com// lf->lfClipPrecision = 64; 12559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com} 12659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 12790d812b77ab025d5fd01dab904287f5c5bf56228bungeman@google.comstatic SkTypeface::Style get_style(const LOGFONT& lf) { 12859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com unsigned style = 0; 12959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com if (lf.lfWeight >= FW_BOLD) { 13059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com style |= SkTypeface::kBold; 13159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } 13259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com if (lf.lfItalic) { 13359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com style |= SkTypeface::kItalic; 13459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } 13590d812b77ab025d5fd01dab904287f5c5bf56228bungeman@google.com return static_cast<SkTypeface::Style>(style); 13659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com} 13759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 13859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.comstatic void setStyle(LOGFONT* lf, SkTypeface::Style style) { 13959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf->lfWeight = (style & SkTypeface::kBold) != 0 ? FW_BOLD : FW_NORMAL ; 14059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf->lfItalic = ((style & SkTypeface::kItalic) != 0); 141ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 142ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 143ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic inline FIXED SkFixedToFIXED(SkFixed x) { 144ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return *(FIXED*)(&x); 145ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 146a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.comstatic inline SkFixed SkFIXEDToFixed(FIXED x) { 147a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com return *(SkFixed*)(&x); 148a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com} 149ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 150ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic inline FIXED SkScalarToFIXED(SkScalar x) { 151ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkFixedToFIXED(SkScalarToFixed(x)); 152ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 153ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1547bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.comstatic unsigned calculateGlyphCount(HDC hdc, const LOGFONT& lf) { 1557bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com TEXTMETRIC textMetric; 1567bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com if (0 == GetTextMetrics(hdc, &textMetric)) { 1577bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com textMetric.tmPitchAndFamily = TMPF_VECTOR; 1587bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com call_ensure_accessible(lf); 1597bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com GetTextMetrics(hdc, &textMetric); 1607bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com } 1617bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 1627bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com if (!(textMetric.tmPitchAndFamily & TMPF_VECTOR)) { 1637bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com return textMetric.tmLastChar; 1647bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com } 1657bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 166ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // The 'maxp' table stores the number of glyphs at offset 4, in 2 bytes. 167ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com uint16_t glyphs; 1687bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com if (GDI_ERROR != GetFontData(hdc, SkOTTableMaximumProfile::TAG, 4, &glyphs, sizeof(glyphs))) { 169ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkEndian_SwapBE16(glyphs); 170ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1715aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org 172ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Binary search for glyph count. 173ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com static const MAT2 mat2 = {{0, 1}, {0, 0}, {0, 0}, {0, 1}}; 174ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int32_t max = SK_MaxU16 + 1; 175ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int32_t min = 0; 176ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com GLYPHMETRICS gm; 177ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com while (min < max) { 178ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int32_t mid = min + ((max - min) / 2); 179ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (GetGlyphOutlineW(hdc, mid, GGO_METRICS | GGO_GLYPH_INDEX, &gm, 0, 180ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com NULL, &mat2) == GDI_ERROR) { 181ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com max = mid; 182ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 183ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com min = mid + 1; 184ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 185ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 186ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(min == max); 187ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return min; 188ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 189ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1907bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.comstatic unsigned calculateUPEM(HDC hdc, const LOGFONT& lf) { 1917bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com TEXTMETRIC textMetric; 1927bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com if (0 == GetTextMetrics(hdc, &textMetric)) { 1937bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com textMetric.tmPitchAndFamily = TMPF_VECTOR; 1947bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com call_ensure_accessible(lf); 1957bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com GetTextMetrics(hdc, &textMetric); 1967bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com } 1977bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 1987bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com if (!(textMetric.tmPitchAndFamily & TMPF_VECTOR)) { 1997bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com return textMetric.tmMaxCharWidth; 2007bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com } 2017bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 2027bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com OUTLINETEXTMETRIC otm; 2037bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com unsigned int otmRet = GetOutlineTextMetrics(hdc, sizeof(otm), &otm); 2047bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com if (0 == otmRet) { 2057bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com call_ensure_accessible(lf); 2067bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com otmRet = GetOutlineTextMetrics(hdc, sizeof(otm), &otm); 2077bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com } 2087bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 2097bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com return (0 == otmRet) ? 0 : otm.otmEMSquare; 2107bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com} 2117bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 212ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comclass LogFontTypeface : public SkTypeface { 213ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.compublic: 214cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com LogFontTypeface(SkTypeface::Style style, SkFontID fontID, const LOGFONT& lf, bool serializeAsStream = false) : 215cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com SkTypeface(style, fontID, false), fLogFont(lf), fSerializeAsStream(serializeAsStream) { 216cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com 217cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com // If the font has cubic outlines, it will not be rendered with ClearType. 218cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com HFONT font = CreateFontIndirect(&lf); 219cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com 220cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com HDC deviceContext = ::CreateCompatibleDC(NULL); 221cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com HFONT savefont = (HFONT)SelectObject(deviceContext, font); 222cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com 223cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com TEXTMETRIC textMetric; 224cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com if (0 == GetTextMetrics(deviceContext, &textMetric)) { 225055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com call_ensure_accessible(lf); 226cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com if (0 == GetTextMetrics(deviceContext, &textMetric)) { 227cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com textMetric.tmPitchAndFamily = TMPF_TRUETYPE; 228cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com } 229cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com } 230cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com if (deviceContext) { 231cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com ::SelectObject(deviceContext, savefont); 232cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com ::DeleteDC(deviceContext); 233cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com } 234cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com if (font) { 235cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com ::DeleteObject(font); 236cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com } 237cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com 238fe74765f0d302669ae49e68074492bdfe0ce6e6fbungeman@google.com // The fixed pitch bit is set if the font is *not* fixed pitch. 239fe74765f0d302669ae49e68074492bdfe0ce6e6fbungeman@google.com this->setIsFixedPitch((textMetric.tmPitchAndFamily & TMPF_FIXED_PITCH) == 0); 240fe74765f0d302669ae49e68074492bdfe0ce6e6fbungeman@google.com 241cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com // Used a logfont on a memory context, should never get a device font. 242cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com // Therefore all TMPF_DEVICE will be PostScript (cubic) fonts. 243cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com fCanBeLCD = !((textMetric.tmPitchAndFamily & TMPF_VECTOR) && 244cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com (textMetric.tmPitchAndFamily & TMPF_DEVICE)); 245cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com } 246ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 24759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LOGFONT fLogFont; 248e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com bool fSerializeAsStream; 249cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com bool fCanBeLCD; 250ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 25159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com static LogFontTypeface* Create(const LOGFONT& lf) { 25290d812b77ab025d5fd01dab904287f5c5bf56228bungeman@google.com SkTypeface::Style style = get_style(lf); 25359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com SkFontID fontID = SkTypefaceCache::NewFontID(); 25459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com return new LogFontTypeface(style, fontID, lf); 255ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 2560da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.com 257055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com static void EnsureAccessible(const SkTypeface* face) { 258055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com call_ensure_accessible(static_cast<const LogFontTypeface*>(face)->fLogFont); 259055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com } 260055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com 2610da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.comprotected: 2620042b9c2a2e6fe954cdfbcd5a5b7449cdf41a4c3reed@google.com virtual SkStream* onOpenStream(int* ttcIndex) const SK_OVERRIDE; 2630da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.com virtual SkScalerContext* onCreateScalerContext(const SkDescriptor*) const SK_OVERRIDE; 2640da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.com virtual void onFilterRec(SkScalerContextRec*) const SK_OVERRIDE; 2652689f615e364dc48ad73826564f5b13d2329179dreed@google.com virtual SkAdvancedTypefaceMetrics* onGetAdvancedTypefaceMetrics( 2662689f615e364dc48ad73826564f5b13d2329179dreed@google.com SkAdvancedTypefaceMetrics::PerGlyphInfo, 2672689f615e364dc48ad73826564f5b13d2329179dreed@google.com const uint32_t*, uint32_t) const SK_OVERRIDE; 2685526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.com virtual void onGetFontDescriptor(SkFontDescriptor*, bool*) const SK_OVERRIDE; 2697bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com virtual int onCountGlyphs() const SK_OVERRIDE; 2707bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com virtual int onGetUPEM() const SK_OVERRIDE; 271a980269c2498836101146adc729ef780fb89824ebungeman@google.com virtual SkTypeface::LocalizedStrings* onGetFamilyNames() const SK_OVERRIDE; 272b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com virtual int onGetTableTags(SkFontTableTag tags[]) const SK_OVERRIDE; 273b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com virtual size_t onGetTableData(SkFontTableTag, size_t offset, 274b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com size_t length, void* data) const SK_OVERRIDE; 27530ddd615c447fed73286151b463af20d309c85f1reed@google.com virtual SkTypeface* onRefMatchingStyle(Style) const SK_OVERRIDE; 276ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com}; 277ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 278a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comclass FontMemResourceTypeface : public LogFontTypeface { 279a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.compublic: 280a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com /** 281a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com * Takes ownership of fontMemResource. 282a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 283a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com FontMemResourceTypeface(SkTypeface::Style style, SkFontID fontID, const LOGFONT& lf, HANDLE fontMemResource) : 284cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com LogFontTypeface(style, fontID, lf, true), fFontMemResource(fontMemResource) { 285e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com } 286a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 287a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com HANDLE fFontMemResource; 288a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 289a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com /** 290a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com * The created FontMemResourceTypeface takes ownership of fontMemResource. 291a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 292a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com static FontMemResourceTypeface* Create(const LOGFONT& lf, HANDLE fontMemResource) { 293a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com SkTypeface::Style style = get_style(lf); 294a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com SkFontID fontID = SkTypefaceCache::NewFontID(); 295a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return new FontMemResourceTypeface(style, fontID, lf, fontMemResource); 296a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 297a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 298a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comprotected: 299a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com virtual void weak_dispose() const SK_OVERRIDE { 300a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com RemoveFontMemResourceEx(fFontMemResource); 301a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com //SkTypefaceCache::Remove(this); 302a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com INHERITED::weak_dispose(); 303a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 304a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 305a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comprivate: 306a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com typedef LogFontTypeface INHERITED; 307a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com}; 308a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 309ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic const LOGFONT& get_default_font() { 310ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com static LOGFONT gDefaultFont; 311ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return gDefaultFont; 312ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 313ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 31459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.comstatic bool FindByLogFont(SkTypeface* face, SkTypeface::Style requestedStyle, void* ctx) { 315a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com LogFontTypeface* lface = static_cast<LogFontTypeface*>(face); 31659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com const LOGFONT* lf = reinterpret_cast<const LOGFONT*>(ctx); 317ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 318a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return lface && 319a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com get_style(lface->fLogFont) == requestedStyle && 32059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com !memcmp(&lface->fLogFont, lf, sizeof(LOGFONT)); 32159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com} 32259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 32359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com/** 32459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com * This guy is public. It first searches the cache, and if a match is not found, 32559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com * it creates a new face. 32659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com */ 32759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.comSkTypeface* SkCreateTypefaceFromLOGFONT(const LOGFONT& origLF) { 32859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LOGFONT lf = origLF; 32959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com make_canonical(&lf); 330ee51d1a6e43615ae640410013c36d2d9873e6aa5bungeman@google.com SkTypeface* face = SkTypefaceCache::FindByProcAndRef(FindByLogFont, &lf); 331ee51d1a6e43615ae640410013c36d2d9873e6aa5bungeman@google.com if (NULL == face) { 33259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com face = LogFontTypeface::Create(lf); 33390d812b77ab025d5fd01dab904287f5c5bf56228bungeman@google.com SkTypefaceCache::Add(face, get_style(lf)); 33459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } 33559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com return face; 336ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 337ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 338db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com/** 339a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com * The created SkTypeface takes ownership of fontMemResource. 340a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 341a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comSkTypeface* SkCreateFontMemResourceTypefaceFromLOGFONT(const LOGFONT& origLF, HANDLE fontMemResource) { 342a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com LOGFONT lf = origLF; 343a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com make_canonical(&lf); 344a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com FontMemResourceTypeface* face = FontMemResourceTypeface::Create(lf, fontMemResource); 345a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com SkTypefaceCache::Add(face, get_style(lf), false); 346a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return face; 347a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com} 348a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 349a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 350db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com * This guy is public 351db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com */ 352db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.comvoid SkLOGFONTFromTypeface(const SkTypeface* face, LOGFONT* lf) { 353db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com if (NULL == face) { 354db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com *lf = get_default_font(); 355db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com } else { 356a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com *lf = static_cast<const LogFontTypeface*>(face)->fLogFont; 357db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com } 358db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com} 359db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com 36059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.comstatic void GetLogFontByID(SkFontID fontID, LOGFONT* lf) { 361a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com LogFontTypeface* face = static_cast<LogFontTypeface*>(SkTypefaceCache::FindByID(fontID)); 36259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com if (face) { 36359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com *lf = face->fLogFont; 36459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } else { 36559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com sk_bzero(lf, sizeof(LOGFONT)); 36659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } 36759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com} 36859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 3696744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// Construct Glyph to Unicode table. 3706744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// Unicode code points that require conjugate pairs in utf16 are not 3716744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// supported. 3726744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// TODO(arthurhsu): Add support for conjugate pairs. It looks like that may 3736744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// require parsing the TTF cmap table (platform 4, encoding 12) directly instead 3746744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// of calling GetFontUnicodeRange(). 3756744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.orgstatic void populate_glyph_to_unicode(HDC fontHdc, const unsigned glyphCount, 3766744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkTDArray<SkUnichar>* glyphToUnicode) { 3776744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org DWORD glyphSetBufferSize = GetFontUnicodeRanges(fontHdc, NULL); 3786744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org if (!glyphSetBufferSize) { 3796744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org return; 3806744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 3816744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 3826744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkAutoTDeleteArray<BYTE> glyphSetBuffer(new BYTE[glyphSetBufferSize]); 3836744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org GLYPHSET* glyphSet = 3846744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org reinterpret_cast<LPGLYPHSET>(glyphSetBuffer.get()); 3856744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org if (GetFontUnicodeRanges(fontHdc, glyphSet) != glyphSetBufferSize) { 3866744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org return; 3876744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 3886744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 3896744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org glyphToUnicode->setCount(glyphCount); 3906744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org memset(glyphToUnicode->begin(), 0, glyphCount * sizeof(SkUnichar)); 3916744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org for (DWORD i = 0; i < glyphSet->cRanges; ++i) { 3926744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // There is no guarantee that within a Unicode range, the corresponding 3936744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // glyph id in a font file are continuous. So, even if we have ranges, 3946744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // we can't just use the first and last entry of the range to compute 3956744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // result. We need to enumerate them one by one. 3966744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org int count = glyphSet->ranges[i].cGlyphs; 3976744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkAutoTArray<WCHAR> chars(count + 1); 3986744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org chars[count] = 0; // termintate string 3996744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkAutoTArray<WORD> glyph(count); 4006744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org for (USHORT j = 0; j < count; ++j) { 4016744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org chars[j] = glyphSet->ranges[i].wcLow + j; 4026744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 4036744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org GetGlyphIndicesW(fontHdc, chars.get(), count, glyph.get(), 4046744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org GGI_MARK_NONEXISTING_GLYPHS); 4056744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // If the glyph ID is valid, and the glyph is not mapped, then we will 4066744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // fill in the char id into the vector. If the glyph is mapped already, 4076744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // skip it. 4086744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // TODO(arthurhsu): better improve this. e.g. Get all used char ids from 4096744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // font cache, then generate this mapping table from there. It's 4106744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // unlikely to have collisions since glyph reuse happens mostly for 4116744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // different Unicode pages. 4126744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org for (USHORT j = 0; j < count; ++j) { 4136744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org if (glyph[j] != 0xffff && glyph[j] < glyphCount && 4146744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org (*glyphToUnicode)[glyph[j]] == 0) { 4156744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org (*glyphToUnicode)[glyph[j]] = chars[j]; 4166744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 4176744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 4186744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 4196744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org} 4206744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 42199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com////////////////////////////////////////////////////////////////////////////////////// 42299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 42399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.comstatic int alignTo32(int n) { 42499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com return (n + 31) & ~31; 42599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com} 42699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 42799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.comstruct MyBitmapInfo : public BITMAPINFO { 42899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com RGBQUAD fMoreSpaceForColors[1]; 42999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com}; 43099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 43199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.comclass HDCOffscreen { 43299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.compublic: 43399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HDCOffscreen() { 43499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fFont = 0; 43599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fDC = 0; 43699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fBM = 0; 43799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fBits = NULL; 43899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fWidth = fHeight = 0; 43999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fIsBW = false; 44099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 44199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 44299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com ~HDCOffscreen() { 44399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (fDC) { 44499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com DeleteDC(fDC); 44599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 44699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (fBM) { 44799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com DeleteObject(fBM); 44899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 44999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 45099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 45199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com void init(HFONT font, const XFORM& xform) { 45299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fFont = font; 45399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fXform = xform; 45499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 45599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 45697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const void* draw(const SkGlyph&, bool isBW, size_t* srcRBPtr); 45799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 45899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.comprivate: 45999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HDC fDC; 46099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HBITMAP fBM; 46199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HFONT fFont; 46299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com XFORM fXform; 46399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com void* fBits; // points into fBM 46499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com int fWidth; 46599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com int fHeight; 46699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com bool fIsBW; 46799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com}; 46899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 469754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.comconst void* HDCOffscreen::draw(const SkGlyph& glyph, bool isBW, 47097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com size_t* srcRBPtr) { 47184e22d847fc84727bc220947162363ee1fe068fcreed@google.com // Can we share the scalercontext's fDDC, so we don't need to create 47284e22d847fc84727bc220947162363ee1fe068fcreed@google.com // a separate fDC here? 47399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (0 == fDC) { 47499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fDC = CreateCompatibleDC(0); 47599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (0 == fDC) { 47699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com return NULL; 47799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 47899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SetGraphicsMode(fDC, GM_ADVANCED); 47999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SetBkMode(fDC, TRANSPARENT); 48099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SetTextAlign(fDC, TA_LEFT | TA_BASELINE); 48199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SelectObject(fDC, fFont); 48297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com 48397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com COLORREF color = 0x00FFFFFF; 484b58a639b2fbe919489654bb506efdb024a308a8ebsalomon@google.com SkDEBUGCODE(COLORREF prev =) SetTextColor(fDC, color); 48597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com SkASSERT(prev != CLR_INVALID); 48699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 48799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 48899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (fBM && (fIsBW != isBW || fWidth < glyph.fWidth || fHeight < glyph.fHeight)) { 48999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com DeleteObject(fBM); 49099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fBM = 0; 49199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 492754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com fIsBW = isBW; 49399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 49499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fWidth = SkMax32(fWidth, glyph.fWidth); 49599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fHeight = SkMax32(fHeight, glyph.fHeight); 49699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 49799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com int biWidth = isBW ? alignTo32(fWidth) : fWidth; 49899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 49999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (0 == fBM) { 50099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com MyBitmapInfo info; 50199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com sk_bzero(&info, sizeof(info)); 50299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (isBW) { 50399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com RGBQUAD blackQuad = { 0, 0, 0, 0 }; 50499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com RGBQUAD whiteQuad = { 0xFF, 0xFF, 0xFF, 0 }; 50599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiColors[0] = blackQuad; 50699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiColors[1] = whiteQuad; 50799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 50899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biSize = sizeof(info.bmiHeader); 50999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biWidth = biWidth; 51099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biHeight = fHeight; 51199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biPlanes = 1; 51299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biBitCount = isBW ? 1 : 32; 51399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biCompression = BI_RGB; 51499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (isBW) { 51599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biClrUsed = 2; 51699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 51799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fBM = CreateDIBSection(fDC, &info, DIB_RGB_COLORS, &fBits, 0, 0); 51899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (0 == fBM) { 51999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com return NULL; 52099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 52199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SelectObject(fDC, fBM); 52299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 52399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 52499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com // erase 52599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com size_t srcRB = isBW ? (biWidth >> 3) : (fWidth << 2); 52699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com size_t size = fHeight * srcRB; 52797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com memset(fBits, 0, size); 52899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 52999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com XFORM xform = fXform; 53099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com xform.eDx = (float)-glyph.fLeft; 53199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com xform.eDy = (float)-glyph.fTop; 53299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SetWorldTransform(fDC, &xform); 53399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 53499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com uint16_t glyphID = glyph.getGlyphID(); 53539698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com BOOL ret = ExtTextOutW(fDC, 0, 0, ETO_GLYPH_INDEX, NULL, reinterpret_cast<LPCWSTR>(&glyphID), 1, NULL); 53699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com GdiFlush(); 53739698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (0 == ret) { 53839698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com return NULL; 53939698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 54099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com *srcRBPtr = srcRB; 54199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com // offset to the start of the image 54299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com return (const char*)fBits + (fHeight - glyph.fHeight) * srcRB; 54399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com} 54499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 545b8a5c618d2e18d71707ae4dcafbe5153d7ff427freed@google.com////////////////////////////////////////////////////////////////////////////// 5460abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#define BUFFERSIZE (1 << 13) 54759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 54830ddd615c447fed73286151b463af20d309c85f1reed@google.comclass SkScalerContext_GDI : public SkScalerContext { 549ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.compublic: 55030ddd615c447fed73286151b463af20d309c85f1reed@google.com SkScalerContext_GDI(SkTypeface*, const SkDescriptor* desc); 55130ddd615c447fed73286151b463af20d309c85f1reed@google.com virtual ~SkScalerContext_GDI(); 552ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 55384e22d847fc84727bc220947162363ee1fe068fcreed@google.com // Returns true if the constructor was able to complete all of its 55484e22d847fc84727bc220947162363ee1fe068fcreed@google.com // initializations (which may include calling GDI). 55584e22d847fc84727bc220947162363ee1fe068fcreed@google.com bool isValid() const; 55684e22d847fc84727bc220947162363ee1fe068fcreed@google.com 557ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comprotected: 55897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com virtual unsigned generateGlyphCount() SK_OVERRIDE; 55997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com virtual uint16_t generateCharToGlyph(SkUnichar uni) SK_OVERRIDE; 56097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com virtual void generateAdvance(SkGlyph* glyph) SK_OVERRIDE; 56197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com virtual void generateMetrics(SkGlyph* glyph) SK_OVERRIDE; 562a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com virtual void generateImage(const SkGlyph& glyph) SK_OVERRIDE; 56397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com virtual void generatePath(const SkGlyph& glyph, SkPath* path) SK_OVERRIDE; 564a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com virtual void generateFontMetrics(SkPaint::FontMetrics* mX, 565a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com SkPaint::FontMetrics* mY) SK_OVERRIDE; 56699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 567ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comprivate: 5680abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com DWORD getGDIGlyphPath(const SkGlyph& glyph, UINT flags, 5690abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkAutoSTMalloc<BUFFERSIZE, uint8_t>* glyphbuf); 5700abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 57199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HDCOffscreen fOffscreen; 5720abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com /** fGsA is the non-rotational part of total matrix without the text height scale. 5730abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com * Used to find the magnitude of advances. 5740abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com */ 5750abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com MAT2 fGsA; 5766a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com /** The total matrix without the textSize. */ 577ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com MAT2 fMat22; 5786a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com /** Scales font to EM size. */ 5796a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com MAT2 fHighResMat22; 580ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HDC fDDC; 581ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT fSavefont; 582ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT fFont; 583ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SCRIPT_CACHE fSC; 584ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int fGlyphCount; 5851dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 5866a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com /** The total matrix which also removes EM scale. */ 5871dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com SkMatrix fHiResMatrix; 5880abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com /** fG_inv is the inverse of the rotational part of the total matrix. 5890abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com * Used to set the direction of advances. 5900abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com */ 5910abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkMatrix fG_inv; 592a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com enum Type { 593a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com kTrueType_Type, kBitmap_Type, 594a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } fType; 595a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com TEXTMETRIC fTM; 596ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com}; 597ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 598ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic FIXED float2FIXED(float x) { 599ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkFixedToFIXED(SkFloatToFixed(x)); 600ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 601ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 60282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.comstatic BYTE compute_quality(const SkScalerContext::Rec& rec) { 60382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com switch (rec.fMaskFormat) { 60482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com case SkMask::kBW_Format: 60582a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com return NONANTIALIASED_QUALITY; 60682a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com case SkMask::kLCD16_Format: 60782a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com case SkMask::kLCD32_Format: 60882a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com return CLEARTYPE_QUALITY; 60982a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com default: 6108351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com if (rec.fFlags & SkScalerContext::kGenA8FromLCD_Flag) { 6118351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com return CLEARTYPE_QUALITY; 6128351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com } else { 6138351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com return ANTIALIASED_QUALITY; 6148351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com } 61582a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com } 61682a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com} 61782a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 61830ddd615c447fed73286151b463af20d309c85f1reed@google.comSkScalerContext_GDI::SkScalerContext_GDI(SkTypeface* rawTypeface, 6190da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.com const SkDescriptor* desc) 620055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com : SkScalerContext(rawTypeface, desc) 621055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com , fDDC(0) 622055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com , fSavefont(0) 62384e22d847fc84727bc220947162363ee1fe068fcreed@google.com , fFont(0) 624055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com , fSC(0) 62505a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com , fGlyphCount(-1) 62605a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com{ 627055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com LogFontTypeface* typeface = reinterpret_cast<LogFontTypeface*>(rawTypeface); 628055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com 629ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fDDC = ::CreateCompatibleDC(NULL); 63084e22d847fc84727bc220947162363ee1fe068fcreed@google.com if (!fDDC) { 63184e22d847fc84727bc220947162363ee1fe068fcreed@google.com return; 63284e22d847fc84727bc220947162363ee1fe068fcreed@google.com } 6331dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com SetGraphicsMode(fDDC, GM_ADVANCED); 634ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SetBkMode(fDDC, TRANSPARENT); 63527e21fe577211c1c40cbf40d0385b02c69d04522skia.committer@gmail.com 6360abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkPoint h = SkPoint::Make(SK_Scalar1, 0); 6370abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // A is the total matrix. 6380abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkMatrix A; 6390abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fRec.getSingleMatrix(&A); 6400abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com A.mapPoints(&h, 1); 6410abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 6420abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // Find the Given's matrix [[c, -s],[s, c]] which rotates the baseline vector h 6430abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // (where the baseline is mapped to) to the positive horizontal axis. 6440abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const SkScalar& a = h.fX; 6450abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const SkScalar& b = h.fY; 6460abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkScalar c, s; 6470abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (0 == b) { 6480abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com c = SkDoubleToScalar(_copysign(SK_Scalar1, a)); 6490abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com s = 0; 6500abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } else if (0 == a) { 6510abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com c = 0; 6520abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com s = SkDoubleToScalar(-_copysign(SK_Scalar1, b)); 6530abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } else if (SkScalarAbs(b) > SkScalarAbs(a)) { 6540abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkScalar t = a / b; 6550abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkScalar u = SkDoubleToScalar(_copysign(SkScalarSqrt(SK_Scalar1 + t*t), b)); 6560abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com s = -1 / u; 6570abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com c = -s * t; 6580abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } else { 6590abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkScalar t = b / a; 6600abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkScalar u = SkDoubleToScalar(_copysign(SkScalarSqrt(SK_Scalar1 + t*t), a)); 6610abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com c = 1 / u; 6620abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com s = -c * t; 6630abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 6640abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 6650abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // G is the Given's Matrix for A (rotational matrix such that GA[0][1] == 0). 6660abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkMatrix G; 6670abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com G.setAll(c, -s, 0, 6680abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com s, c, 0, 6690abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 0, 0, SkScalarToPersp(SK_Scalar1)); 6700abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 6710abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // GA is the matrix A with rotation removed. 6720abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkMatrix GA(G); 6730abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GA.preConcat(A); 6740abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 6750abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // textSize is the actual device size we want (as opposed to the size the user requested). 6760abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // If the scale is negative, this means the matrix will do the flip anyway. 6770abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkScalar textSize = SkScalarAbs(SkScalarRoundToScalar(GA.get(SkMatrix::kMScaleY))); 6780abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (textSize == 0) { 6790abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com textSize = SK_Scalar1; 6800abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 6810abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 6820abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // sA is the total matrix A without the textSize (so GDI knows the text size separately). 6830abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // When this matrix is used with GetGlyphOutline, no further processing is needed. 6840abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkMatrix sA(A); 6850abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkScalar scale = SkScalarInvert(textSize); 6860abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com sA.preScale(scale, scale); //remove text size 6870abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 6880abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // GsA is the non-rotational part of A without the text height scale. 6890abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // This is what is used to find the magnitude of advances. 6900abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkMatrix GsA(GA); 6910abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GsA.preScale(scale, scale); //remove text size, G is rotational so reorders with the scale. 6920abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 6930abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fGsA.eM11 = SkScalarToFIXED(GsA.get(SkMatrix::kMScaleX)); 6940abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fGsA.eM12 = SkScalarToFIXED(-GsA.get(SkMatrix::kMSkewY)); // This should be ~0. 6950abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fGsA.eM21 = SkScalarToFIXED(-GsA.get(SkMatrix::kMSkewX)); 6960abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fGsA.eM22 = SkScalarToFIXED(GsA.get(SkMatrix::kMScaleY)); 6970abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 6980abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // fG_inv is G inverse, which is fairly simple since G is 2x2 rotational. 6990abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fG_inv.setAll(G.get(SkMatrix::kMScaleX), -G.get(SkMatrix::kMSkewX), G.get(SkMatrix::kMTransX), 7000abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com -G.get(SkMatrix::kMSkewY), G.get(SkMatrix::kMScaleY), G.get(SkMatrix::kMTransY), 7010abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com G.get(SkMatrix::kMPersp0), G.get(SkMatrix::kMPersp1), G.get(SkMatrix::kMPersp2)); 702ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 703055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com LOGFONT lf = typeface->fLogFont; 7040abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com lf.lfHeight = -SkScalarTruncToInt(textSize); 70582a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com lf.lfQuality = compute_quality(fRec); 706ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fFont = CreateFontIndirect(&lf); 70784e22d847fc84727bc220947162363ee1fe068fcreed@google.com if (!fFont) { 70884e22d847fc84727bc220947162363ee1fe068fcreed@google.com return; 70984e22d847fc84727bc220947162363ee1fe068fcreed@google.com } 7101dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 711ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fSavefont = (HFONT)SelectObject(fDDC, fFont); 712a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 713a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (0 == GetTextMetrics(fDDC, &fTM)) { 714055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com call_ensure_accessible(lf); 715a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (0 == GetTextMetrics(fDDC, &fTM)) { 716a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fTM.tmPitchAndFamily = TMPF_TRUETYPE; 717a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 718a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 719a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com // Used a logfont on a memory context, should never get a device font. 72090b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com // Therefore all TMPF_DEVICE will be PostScript fonts. 72190b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com 72290b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com // If TMPF_VECTOR is set, one of TMPF_TRUETYPE or TMPF_DEVICE must be set, 72390b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com // otherwise we have a vector FON, which we don't support. 72490b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com // This was determined by testing with Type1 PFM/PFB and OpenTypeCFF OTF, 72590b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com // as well as looking at Wine bugs and sources. 72690b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com SkASSERT(!(fTM.tmPitchAndFamily & TMPF_VECTOR) || 72790b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com (fTM.tmPitchAndFamily & (TMPF_TRUETYPE | TMPF_DEVICE))); 72890b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com 729d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com XFORM xform; 73090b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com if (fTM.tmPitchAndFamily & TMPF_VECTOR) { 731a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com // Truetype or PostScript. 732a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com // Stroked FON also gets here (TMPF_VECTOR), but we don't handle it. 73330ddd615c447fed73286151b463af20d309c85f1reed@google.com fType = SkScalerContext_GDI::kTrueType_Type; 734a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 735d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // fPost2x2 is column-major, left handed (y down). 736d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // XFORM 2x2 is row-major, left handed (y down). 7370abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com xform.eM11 = SkScalarToFloat(sA.get(SkMatrix::kMScaleX)); 7380abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com xform.eM12 = SkScalarToFloat(sA.get(SkMatrix::kMSkewY)); 7390abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com xform.eM21 = SkScalarToFloat(sA.get(SkMatrix::kMSkewX)); 7400abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com xform.eM22 = SkScalarToFloat(sA.get(SkMatrix::kMScaleY)); 741d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eDx = 0; 742d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eDy = 0; 743d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com 744d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // MAT2 is row major, right handed (y up). 745d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM11 = float2FIXED(xform.eM11); 746d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM12 = float2FIXED(-xform.eM12); 747d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM21 = float2FIXED(-xform.eM21); 748d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM22 = float2FIXED(xform.eM22); 749a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 750a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (needToRenderWithSkia(fRec)) { 751a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com this->forceGenerateImageFromPath(); 752a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 753a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 7540abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // Create a hires font if we need linear metrics. 7550abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (this->isSubpixel()) { 7560abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com OUTLINETEXTMETRIC otm; 7570abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com UINT success = GetOutlineTextMetrics(fDDC, sizeof(otm), &otm); 7580abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (0 == success) { 7590abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com call_ensure_accessible(lf); 7600abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com success = GetOutlineTextMetrics(fDDC, sizeof(otm), &otm); 7610abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 7620abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (0 != success) { 7636a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com SkScalar scale = SkIntToScalar(otm.otmEMSquare); 7646a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com 7656a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com SkScalar textScale = scale / textSize; 7666a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com fHighResMat22.eM11 = float2FIXED(textScale); 7676a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com fHighResMat22.eM12 = float2FIXED(0); 7686a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com fHighResMat22.eM21 = float2FIXED(0); 7696a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com fHighResMat22.eM22 = float2FIXED(textScale); 7706a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com 7716a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com SkScalar invScale = SkScalarInvert(scale); 7726a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com fHiResMatrix = A; 7736a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com fHiResMatrix.preScale(invScale, invScale); 7740abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 7750abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 7760abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 777a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } else { 778a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com // Assume bitmap 77930ddd615c447fed73286151b463af20d309c85f1reed@google.com fType = SkScalerContext_GDI::kBitmap_Type; 780a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 781d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM11 = 1.0f; 782d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM12 = 0.0f; 783d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM21 = 0.0f; 784d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM22 = 1.0f; 785d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eDx = 0.0f; 786d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eDy = 0.0f; 787a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 788d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // fPost2x2 is column-major, left handed (y down). 789d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // MAT2 is row major, right handed (y up). 790a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fMat22.eM11 = SkScalarToFIXED(fRec.fPost2x2[0][0]); 791d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM12 = SkScalarToFIXED(-fRec.fPost2x2[1][0]); 792a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fMat22.eM21 = SkScalarToFIXED(-fRec.fPost2x2[0][1]); 793d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM22 = SkScalarToFIXED(fRec.fPost2x2[1][1]); 794a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com } 79599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 796d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fOffscreen.init(fFont, xform); 797ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 798ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 79930ddd615c447fed73286151b463af20d309c85f1reed@google.comSkScalerContext_GDI::~SkScalerContext_GDI() { 800ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fDDC) { 801ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::SelectObject(fDDC, fSavefont); 802ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::DeleteDC(fDDC); 803ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 804ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fFont) { 805ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::DeleteObject(fFont); 806ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 807ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fSC) { 808ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::ScriptFreeCache(&fSC); 809ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 810ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 811ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 81230ddd615c447fed73286151b463af20d309c85f1reed@google.combool SkScalerContext_GDI::isValid() const { 81384e22d847fc84727bc220947162363ee1fe068fcreed@google.com return fDDC && fFont; 81484e22d847fc84727bc220947162363ee1fe068fcreed@google.com} 81584e22d847fc84727bc220947162363ee1fe068fcreed@google.com 81630ddd615c447fed73286151b463af20d309c85f1reed@google.comunsigned SkScalerContext_GDI::generateGlyphCount() { 817ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fGlyphCount < 0) { 8187bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com fGlyphCount = calculateGlyphCount( 8197bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com fDDC, static_cast<const LogFontTypeface*>(this->getTypeface())->fLogFont); 820ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 821ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return fGlyphCount; 822ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 823ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 82430ddd615c447fed73286151b463af20d309c85f1reed@google.comuint16_t SkScalerContext_GDI::generateCharToGlyph(SkUnichar uni) { 825ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com uint16_t index = 0; 826ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com WCHAR c[2]; 827ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // TODO(ctguil): Support characters that generate more than one glyph. 828ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (SkUTF16_FromUnichar(uni, (uint16_t*)c) == 1) { 829ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Type1 fonts fail with uniscribe API. Use GetGlyphIndices for plane 0. 830ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkAssertResult(GetGlyphIndicesW(fDDC, c, 1, &index, 0)); 831ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 832ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Use uniscribe to detemine glyph index for non-BMP characters. 833ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Need to add extra item to SCRIPT_ITEM to work around a bug in older 834ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // windows versions. https://bugzilla.mozilla.org/show_bug.cgi?id=366643 835ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SCRIPT_ITEM si[2 + 1]; 836ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int items; 837ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkAssertResult( 838ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SUCCEEDED(ScriptItemize(c, 2, 2, NULL, NULL, si, &items))); 839ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 840ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com WORD log[2]; 841ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SCRIPT_VISATTR vsa; 842ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int glyphs; 843ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkAssertResult(SUCCEEDED(ScriptShape( 844ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fDDC, &fSC, c, 2, 1, &si[0].a, &index, log, &vsa, &glyphs))); 845ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 846ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return index; 847ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 848ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 84930ddd615c447fed73286151b463af20d309c85f1reed@google.comvoid SkScalerContext_GDI::generateAdvance(SkGlyph* glyph) { 850ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com this->generateMetrics(glyph); 851ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 852ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 85330ddd615c447fed73286151b463af20d309c85f1reed@google.comvoid SkScalerContext_GDI::generateMetrics(SkGlyph* glyph) { 854ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(fDDC); 855ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 85630ddd615c447fed73286151b463af20d309c85f1reed@google.com if (fType == SkScalerContext_GDI::kBitmap_Type) { 857a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com SIZE size; 858a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com WORD glyphs = glyph->getGlyphID(0); 859a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (0 == GetTextExtentPointI(fDDC, &glyphs, 1, &size)) { 860a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fWidth = SkToS16(fTM.tmMaxCharWidth); 861a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } else { 862a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fWidth = SkToS16(size.cx); 863a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 864a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fHeight = SkToS16(size.cy); 865a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 866a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fTop = SkToS16(-fTM.tmAscent); 867a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fLeft = SkToS16(0); 868a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fAdvanceX = SkIntToFixed(glyph->fWidth); 869a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fAdvanceY = 0; 870a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 871d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // Apply matrix to advance. 872a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fAdvanceY = SkFixedMul(SkFIXEDToFixed(fMat22.eM21), glyph->fAdvanceX); 873a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fAdvanceX = SkFixedMul(SkFIXEDToFixed(fMat22.eM11), glyph->fAdvanceX); 874a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 875a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com return; 876a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 877a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 878d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com UINT glyphId = glyph->getGlyphID(0); 879d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com 880ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com GLYPHMETRICS gm; 8811dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com sk_bzero(&gm, sizeof(gm)); 882ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 883d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com DWORD status = GetGlyphOutlineW(fDDC, glyphId, GGO_METRICS | GGO_GLYPH_INDEX, &gm, 0, NULL, &fMat22); 884d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (GDI_ERROR == status) { 885055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com LogFontTypeface::EnsureAccessible(this->getTypeface()); 886d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com status = GetGlyphOutlineW(fDDC, glyphId, GGO_METRICS | GGO_GLYPH_INDEX, &gm, 0, NULL, &fMat22); 887d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (GDI_ERROR == status) { 888d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->zeroMetrics(); 889d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com return; 890d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 89139698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 892ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 893d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com bool empty = false; 894d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // The black box is either the embedded bitmap size or the outline extent. 895d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // It is 1x1 if nothing is to be drawn, but will also be 1x1 if something very small 896d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // is to be drawn, like a '.'. We need to outset '.' but do not wish to outset ' '. 897d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (1 == gm.gmBlackBoxX && 1 == gm.gmBlackBoxY) { 898d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // If GetGlyphOutline with GGO_NATIVE returns 0, we know there was no outline. 899d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com DWORD bufferSize = GetGlyphOutlineW(fDDC, glyphId, GGO_NATIVE | GGO_GLYPH_INDEX, &gm, 0, NULL, &fMat22); 900d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com empty = (0 == bufferSize); 901d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 9021dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 903d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fTop = SkToS16(-gm.gmptGlyphOrigin.y); 904d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fLeft = SkToS16(gm.gmptGlyphOrigin.x); 905d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (empty) { 906d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fWidth = 0; 907d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fHeight = 0; 908ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 909d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // Outset, since the image may bleed out of the black box. 910d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // For embedded bitmaps the black box should be exact. 911d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // For outlines we need to outset by 1 in all directions for bleed. 912d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // For ClearType we need to outset by 2 for bleed. 913d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fWidth = gm.gmBlackBoxX + 4; 914d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fHeight = gm.gmBlackBoxY + 4; 915d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fTop -= 2; 916d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fLeft -= 2; 917d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 918d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fAdvanceX = SkIntToFixed(gm.gmCellIncX); 919d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fAdvanceY = SkIntToFixed(gm.gmCellIncY); 920d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fRsbDelta = 0; 921d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fLsbDelta = 0; 922d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com 9236a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com if (this->isSubpixel()) { 924d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com sk_bzero(&gm, sizeof(gm)); 9256a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com status = GetGlyphOutlineW(fDDC, glyphId, GGO_METRICS | GGO_GLYPH_INDEX, &gm, 0, NULL, &fHighResMat22); 926d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (GDI_ERROR != status) { 927d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkPoint advance; 928d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fHiResMatrix.mapXY(SkIntToScalar(gm.gmCellIncX), SkIntToScalar(gm.gmCellIncY), &advance); 929d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fAdvanceX = SkScalarToFixed(advance.fX); 930d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fAdvanceY = SkScalarToFixed(advance.fY); 931d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 9320abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } else if (!isAxisAligned(this->fRec)) { 9330abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com status = GetGlyphOutlineW(fDDC, glyphId, GGO_METRICS | GGO_GLYPH_INDEX, &gm, 0, NULL, &fGsA); 9340abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (GDI_ERROR != status) { 9350abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkPoint advance; 9360abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fG_inv.mapXY(SkIntToScalar(gm.gmCellIncX), SkIntToScalar(gm.gmCellIncY), &advance); 9370abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com glyph->fAdvanceX = SkScalarToFixed(advance.fX); 9380abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com glyph->fAdvanceY = SkScalarToFixed(advance.fY); 9390abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 940ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 941ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 942ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 9436a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.comstatic const MAT2 gMat2Identity = {{0, 1}, {0, 0}, {0, 0}, {0, 1}}; 94430ddd615c447fed73286151b463af20d309c85f1reed@google.comvoid SkScalerContext_GDI::generateFontMetrics(SkPaint::FontMetrics* mx, SkPaint::FontMetrics* my) { 94560af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com if (!(mx || my)) { 946ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return; 94760af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com } 94860af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com 94960af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com if (mx) { 95060af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com sk_bzero(mx, sizeof(*mx)); 95160af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com } 95260af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com if (my) { 95360af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com sk_bzero(my, sizeof(*my)); 95460af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com } 955ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 956ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(fDDC); 957ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 958e9d831957602e3fa46fc4b609ae6d2da46654915bungeman@google.com#ifndef SK_GDI_ALWAYS_USE_TEXTMETRICS_FOR_FONT_METRICS 95930ddd615c447fed73286151b463af20d309c85f1reed@google.com if (fType == SkScalerContext_GDI::kBitmap_Type) { 960e9d831957602e3fa46fc4b609ae6d2da46654915bungeman@google.com#endif 961a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (mx) { 962a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com mx->fTop = SkIntToScalar(-fTM.tmAscent); 963a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com mx->fAscent = SkIntToScalar(-fTM.tmAscent); 9640abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com mx->fDescent = SkIntToScalar(fTM.tmDescent); 965a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com mx->fBottom = SkIntToScalar(fTM.tmDescent); 96660af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com mx->fLeading = SkIntToScalar(fTM.tmExternalLeading); 967a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 968a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 969a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (my) { 970a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com my->fTop = SkIntToScalar(-fTM.tmAscent); 971a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com my->fAscent = SkIntToScalar(-fTM.tmAscent); 9720abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com my->fDescent = SkIntToScalar(fTM.tmDescent); 973a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com my->fBottom = SkIntToScalar(fTM.tmDescent); 97460af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com my->fLeading = SkIntToScalar(fTM.tmExternalLeading); 97560af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com my->fAvgCharWidth = SkIntToScalar(fTM.tmAveCharWidth); 976e9d831957602e3fa46fc4b609ae6d2da46654915bungeman@google.com my->fMaxCharWidth = SkIntToScalar(fTM.tmMaxCharWidth); 977e9d831957602e3fa46fc4b609ae6d2da46654915bungeman@google.com my->fXMin = 0; 978e9d831957602e3fa46fc4b609ae6d2da46654915bungeman@google.com my->fXMax = my->fMaxCharWidth; 979e9d831957602e3fa46fc4b609ae6d2da46654915bungeman@google.com //my->fXHeight = 0; 980a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 981e9d831957602e3fa46fc4b609ae6d2da46654915bungeman@google.com#ifndef SK_GDI_ALWAYS_USE_TEXTMETRICS_FOR_FONT_METRICS 982a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com return; 983a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 984e9d831957602e3fa46fc4b609ae6d2da46654915bungeman@google.com#endif 985a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 986ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com OUTLINETEXTMETRIC otm; 987ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 988ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com uint32_t ret = GetOutlineTextMetrics(fDDC, sizeof(otm), &otm); 9890abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (0 == ret) { 990055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com LogFontTypeface::EnsureAccessible(this->getTypeface()); 99139698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com ret = GetOutlineTextMetrics(fDDC, sizeof(otm), &otm); 99239698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 9930abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (0 == ret) { 994a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com return; 995ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 996ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 997ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (mx) { 9980abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com mx->fTop = SkIntToScalar(-otm.otmrcFontBox.left); 9990abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com mx->fAscent = SkIntToScalar(-otm.otmAscent); 10000abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com mx->fDescent = SkIntToScalar(-otm.otmDescent); 10010abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com mx->fBottom = SkIntToScalar(otm.otmrcFontBox.right); 10020abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com mx->fLeading = SkIntToScalar(otm.otmLineGap); 1003ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1004ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1005ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (my) { 1006e9d831957602e3fa46fc4b609ae6d2da46654915bungeman@google.com#ifndef SK_GDI_ALWAYS_USE_TEXTMETRICS_FOR_FONT_METRICS 10070abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com my->fTop = SkIntToScalar(-otm.otmrcFontBox.top); 10080abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com my->fAscent = SkIntToScalar(-otm.otmAscent); 10090abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com my->fDescent = SkIntToScalar(-otm.otmDescent); 10100abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com my->fBottom = SkIntToScalar(-otm.otmrcFontBox.bottom); 10110abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com my->fLeading = SkIntToScalar(otm.otmLineGap); 10120abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com my->fAvgCharWidth = SkIntToScalar(otm.otmTextMetrics.tmAveCharWidth); 10130abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com my->fMaxCharWidth = SkIntToScalar(otm.otmTextMetrics.tmMaxCharWidth); 10140abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com my->fXMin = SkIntToScalar(otm.otmrcFontBox.left); 10150abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com my->fXMax = SkIntToScalar(otm.otmrcFontBox.right); 1016e9d831957602e3fa46fc4b609ae6d2da46654915bungeman@google.com#endif 10170abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com my->fXHeight = SkIntToScalar(otm.otmsXHeight); 10180abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 10190abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GLYPHMETRICS gm; 10200abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com sk_bzero(&gm, sizeof(gm)); 10210abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com DWORD len = GetGlyphOutlineW(fDDC, 'x', GGO_METRICS, &gm, 0, 0, &gMat2Identity); 10220abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (len != GDI_ERROR && gm.gmBlackBoxY > 0) { 10230abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com my->fXHeight = SkIntToScalar(gm.gmBlackBoxY); 10240abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 1025ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1026ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1027ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 10287430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com//////////////////////////////////////////////////////////////////////////////////////// 10297430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com 10300abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#define SK_SHOW_TEXT_BLIT_COVERAGE 0 10310abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 10327430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.comstatic void build_power_table(uint8_t table[], float ee) { 10337430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com for (int i = 0; i < 256; i++) { 10347430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com float x = i / 255.f; 103597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com x = sk_float_pow(x, ee); 10367430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com int xx = SkScalarRound(SkFloatToScalar(x * 255)); 10377430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com table[i] = SkToU8(xx); 10387430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com } 10397430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com} 10407430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com 104197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com/** 104297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * This will invert the gamma applied by GDI (gray-scale antialiased), so we 104397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * can get linear values. 104497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * 104597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * GDI grayscale appears to use a hard-coded gamma of 2.3. 104697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * 104797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * GDI grayscale appears to draw using the black and white rasterizer at four 104897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * times the size and then downsamples to compute the coverage mask. As a 104997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * result there are only seventeen total grays. This lack of fidelity means 105097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * that shifting into other color spaces is imprecise. 105197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com */ 105297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic const uint8_t* getInverseGammaTableGDI() { 105305a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Since build_power_table is idempotent, many threads can build gTableGdi 105405a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // simultaneously. 105505a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com 105605a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Microsoft Specific: 105705a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Making gInited volatile provides read-aquire and write-release in vc++. 105805a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // In VS2012, see compiler option /volatile:(ms|iso). 105905a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Replace with C++11 atomics when possible. 106005a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com static volatile bool gInited; 106197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com static uint8_t gTableGdi[256]; 106205a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com if (gInited) { 106305a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Need a L/L (read) barrier (full acquire not needed). If gInited is observed 106405a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // true then gTableGdi is observable, but it must be requested. 106505a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com } else { 106697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com build_power_table(gTableGdi, 2.3f); 106705a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Need a S/S (write) barrier (full release not needed) here so that this 106805a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // write to gInited becomes observable after gTableGdi. 106997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com gInited = true; 107097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } 107197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com return gTableGdi; 107297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com} 107397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com 107497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com/** 107597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * This will invert the gamma applied by GDI ClearType, so we can get linear 107697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * values. 107797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * 107897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * GDI ClearType uses SPI_GETFONTSMOOTHINGCONTRAST / 1000 as the gamma value. 107997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * If this value is not specified, the default is a gamma of 1.4. 108097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com */ 108197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic const uint8_t* getInverseGammaTableClearType() { 108205a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // We don't expect SPI_GETFONTSMOOTHINGCONTRAST to ever change, so building 108305a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // gTableClearType with build_power_table is effectively idempotent. 108405a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com 108505a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Microsoft Specific: 108605a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Making gInited volatile provides read-aquire and write-release in vc++. 108705a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // In VS2012, see compiler option /volatile:(ms|iso). 108805a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Replace with C++11 atomics when possible. 108905a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com static volatile bool gInited; 109097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com static uint8_t gTableClearType[256]; 109105a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com if (gInited) { 109205a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Need a L/L (read) barrier (acquire not needed). If gInited is observed 109305a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // true then gTableClearType is observable, but it must be requested. 109405a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com } else { 10957430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com UINT level = 0; 10967430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com if (!SystemParametersInfo(SPI_GETFONTSMOOTHINGCONTRAST, 0, &level, 0) || !level) { 10977430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com // can't get the data, so use a default 10987430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com level = 1400; 10997430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com } 110097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com build_power_table(gTableClearType, level / 1000.0f); 110105a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Need a S/S (write) barrier (release not needed) here so that this 110205a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // write to gInited becomes observable after gTableClearType. 11037430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com gInited = true; 11047430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com } 110597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com return gTableClearType; 11067430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com} 11077430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com 1108ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkColorPriv.h" 1109ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 11106385314686875ecb484d95b33fcbf08890b5144dbungeman@google.com//Cannot assume that the input rgb is gray due to possible setting of kGenA8FromLCD_Flag. 111197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 111297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic inline uint8_t rgb_to_a8(SkGdiRGB rgb, const uint8_t* table8) { 11136385314686875ecb484d95b33fcbf08890b5144dbungeman@google.com U8CPU r = (rgb >> 16) & 0xFF; 11146385314686875ecb484d95b33fcbf08890b5144dbungeman@google.com U8CPU g = (rgb >> 8) & 0xFF; 11156385314686875ecb484d95b33fcbf08890b5144dbungeman@google.com U8CPU b = (rgb >> 0) & 0xFF; 11161bfe01d06b896eca94c80d9af9a6bb30216b5e42bungeman@google.com return sk_apply_lut_if<APPLY_PREBLEND>(SkComputeLuminance(r, g, b), table8); 111782a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com} 111882a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 111997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 112097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic inline uint16_t rgb_to_lcd16(SkGdiRGB rgb, const uint8_t* tableR, 112197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableG, 112297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableB) { 112397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU r = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 16) & 0xFF, tableR); 112497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU g = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 8) & 0xFF, tableG); 112597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU b = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 0) & 0xFF, tableB); 11260abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#if SK_SHOW_TEXT_BLIT_COVERAGE 11270abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com r = SkMax32(r, 10); g = SkMax32(g, 10); b = SkMax32(b, 10); 11280abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#endif 112997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com return SkPack888ToRGB16(r, g, b); 1130ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1131ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 113297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 113397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic inline SkPMColor rgb_to_lcd32(SkGdiRGB rgb, const uint8_t* tableR, 113497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableG, 113597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableB) { 113697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU r = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 16) & 0xFF, tableR); 113797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU g = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 8) & 0xFF, tableG); 113897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU b = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 0) & 0xFF, tableB); 11390abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#if SK_SHOW_TEXT_BLIT_COVERAGE 11400abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com r = SkMax32(r, 10); g = SkMax32(g, 10); b = SkMax32(b, 10); 11410abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#endif 114297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com return SkPackARGB32(0xFF, r, g, b); 1143754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com} 1144754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com 114582cff020b7e055f2d01686f060a884df842306edreed@google.com// Is this GDI color neither black nor white? If so, we have to keep this 114682cff020b7e055f2d01686f060a884df842306edreed@google.com// image as is, rather than smashing it down to a BW mask. 114782cff020b7e055f2d01686f060a884df842306edreed@google.com// 114882cff020b7e055f2d01686f060a884df842306edreed@google.com// returns int instead of bool, since we don't want/have to pay to convert 114982cff020b7e055f2d01686f060a884df842306edreed@google.com// the zero/non-zero value into a bool 115082cff020b7e055f2d01686f060a884df842306edreed@google.comstatic int is_not_black_or_white(SkGdiRGB c) { 115182cff020b7e055f2d01686f060a884df842306edreed@google.com // same as (but faster than) 115282cff020b7e055f2d01686f060a884df842306edreed@google.com // c &= 0x00FFFFFF; 115382cff020b7e055f2d01686f060a884df842306edreed@google.com // return 0 == c || 0x00FFFFFF == c; 115482cff020b7e055f2d01686f060a884df842306edreed@google.com return (c + (c & 1)) & 0x00FFFFFF; 11555e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 11565e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 11574b18f5767ab1df7fedf0ff2e3a9eac7f7c500c36bungeman@google.comstatic bool is_rgb_really_bw(const SkGdiRGB* src, int width, int height, size_t srcRB) { 11585e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int y = 0; y < height; ++y) { 11595e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int x = 0; x < width; ++x) { 116082cff020b7e055f2d01686f060a884df842306edreed@google.com if (is_not_black_or_white(src[x])) { 11615e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com return false; 11625e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 11635e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 116405a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com src = SkTAddOffset<const SkGdiRGB>(src, srcRB); 11655e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 11665e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com return true; 11675e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 11685e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 116997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com// gdi's bitmap is upside-down, so we reverse dst walking in Y 117097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com// whenever we copy it into skia's buffer 11715e2df64215f12660ab26b96816f40ad8e32bf16freed@google.comstatic void rgb_to_bw(const SkGdiRGB* SK_RESTRICT src, size_t srcRB, 117297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const SkGlyph& glyph) { 11735e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const int width = glyph.fWidth; 11745e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const size_t dstRB = (width + 7) >> 3; 11755e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com uint8_t* SK_RESTRICT dst = (uint8_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 11765e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 11775e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com int byteCount = width >> 3; 11785e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com int bitCount = width & 7; 11795e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 11805e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com // adjust srcRB to skip the values in our byteCount loop, 11815e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com // since we increment src locally there 11825e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com srcRB -= byteCount * 8 * sizeof(SkGdiRGB); 11835e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 11845e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int y = 0; y < glyph.fHeight; ++y) { 11855e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com if (byteCount > 0) { 11865e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int i = 0; i < byteCount; ++i) { 11877a230142e01c5a8cf955be12a5f287589b551634reed@google.com unsigned byte = 0; 118897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[0] & (1 << 7); 118997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[1] & (1 << 6); 119097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[2] & (1 << 5); 119197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[3] & (1 << 4); 119297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[4] & (1 << 3); 119397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[5] & (1 << 2); 119497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[6] & (1 << 1); 119597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[7] & (1 << 0); 11966a8f14d9633b330fb8051581828a0aaf4403d1a9reed@google.com dst[i] = byte; 11975e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com src += 8; 11985e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 11995e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 12005e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com if (bitCount > 0) { 12015e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com unsigned byte = 0; 12025e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com unsigned mask = 0x80; 12035e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int i = 0; i < bitCount; i++) { 120497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[i] & mask; 12055e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com mask >>= 1; 12065e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 12075e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com dst[byteCount] = byte; 12085e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 120905a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com src = SkTAddOffset<const SkGdiRGB>(src, srcRB); 12105e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com dst -= dstRB; 12115e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 12120abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#if SK_SHOW_TEXT_BLIT_COVERAGE 12130abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (glyph.fWidth > 0 && glyph.fHeight > 0) { 12140abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com uint8_t* first = (uint8_t*)glyph.fImage; 12150abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com uint8_t* last = (uint8_t*)((char*)glyph.fImage + glyph.fHeight * dstRB - 1); 12160abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com *first |= 1 << 7; 12170abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com *last |= bitCount == 0 ? 1 : 1 << (8 - bitCount); 12180abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 12190abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#endif 12205e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 12215e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 122297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 12235e2df64215f12660ab26b96816f40ad8e32bf16freed@google.comstatic void rgb_to_a8(const SkGdiRGB* SK_RESTRICT src, size_t srcRB, 122497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const SkGlyph& glyph, const uint8_t* table8) { 12255e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const size_t dstRB = glyph.rowBytes(); 12265e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const int width = glyph.fWidth; 12275e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com uint8_t* SK_RESTRICT dst = (uint8_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 12285e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 12295e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int y = 0; y < glyph.fHeight; y++) { 12305e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int i = 0; i < width; i++) { 123197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com dst[i] = rgb_to_a8<APPLY_PREBLEND>(src[i], table8); 12320abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#if SK_SHOW_TEXT_BLIT_COVERAGE 12330abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com dst[i] = SkMax32(dst[i], 10); 12340abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#endif 12355e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 123605a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com src = SkTAddOffset<const SkGdiRGB>(src, srcRB); 12375e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com dst -= dstRB; 12385e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 12395e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 12405e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 124197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 124297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic void rgb_to_lcd16(const SkGdiRGB* SK_RESTRICT src, size_t srcRB, const SkGlyph& glyph, 124397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableR, const uint8_t* tableG, const uint8_t* tableB) { 12445e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const size_t dstRB = glyph.rowBytes(); 12455e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const int width = glyph.fWidth; 12465e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com uint16_t* SK_RESTRICT dst = (uint16_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 12475e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 12485e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int y = 0; y < glyph.fHeight; y++) { 12495e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int i = 0; i < width; i++) { 125097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com dst[i] = rgb_to_lcd16<APPLY_PREBLEND>(src[i], tableR, tableG, tableB); 12515e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 125205a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com src = SkTAddOffset<const SkGdiRGB>(src, srcRB); 12535e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com dst = (uint16_t*)((char*)dst - dstRB); 12545e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 12555e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 12565e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 125797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 125897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic void rgb_to_lcd32(const SkGdiRGB* SK_RESTRICT src, size_t srcRB, const SkGlyph& glyph, 125997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableR, const uint8_t* tableG, const uint8_t* tableB) { 1260754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com const size_t dstRB = glyph.rowBytes(); 1261754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com const int width = glyph.fWidth; 126297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com uint32_t* SK_RESTRICT dst = (uint32_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 1263754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com 1264754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com for (int y = 0; y < glyph.fHeight; y++) { 1265754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com for (int i = 0; i < width; i++) { 126697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com dst[i] = rgb_to_lcd32<APPLY_PREBLEND>(src[i], tableR, tableG, tableB); 1267754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } 126805a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com src = SkTAddOffset<const SkGdiRGB>(src, srcRB); 126997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com dst = (uint32_t*)((char*)dst - dstRB); 1270754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } 1271754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com} 1272754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com 12736f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.comstatic inline unsigned clamp255(unsigned x) { 12746f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com SkASSERT(x <= 256); 12756f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com return x - (x >> 8); 12766f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com} 12776f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com 127830ddd615c447fed73286151b463af20d309c85f1reed@google.comvoid SkScalerContext_GDI::generateImage(const SkGlyph& glyph) { 1279ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(fDDC); 1280ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 12816271117d826098c1399cf7442f8eea2d665cb78areed@google.com const bool isBW = SkMask::kBW_Format == fRec.fMaskFormat; 128282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com const bool isAA = !isLCD(fRec); 128382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 128499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com size_t srcRB; 128597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const void* bits = fOffscreen.draw(glyph, isBW, &srcRB); 128639698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (NULL == bits) { 1287055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com LogFontTypeface::EnsureAccessible(this->getTypeface()); 128897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com bits = fOffscreen.draw(glyph, isBW, &srcRB); 128939698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (NULL == bits) { 129039698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com sk_bzero(glyph.fImage, glyph.computeImageSize()); 129139698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com return; 129239698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 129382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com } 129482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 129597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com if (!isBW) { 12961bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com const uint8_t* table; 12971bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com //The offscreen contains a GDI blit if isAA and kGenA8FromLCD_Flag is not set. 12981bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com //Otherwise the offscreen contains a ClearType blit. 12991bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com if (isAA && !(fRec.fFlags & SkScalerContext::kGenA8FromLCD_Flag)) { 13001bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com table = getInverseGammaTableGDI(); 13011bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com } else { 13021bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com table = getInverseGammaTableClearType(); 130397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } 130497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //Note that the following cannot really be integrated into the 130597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //pre-blend, since we may not be applying the pre-blend; when we aren't 130697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //applying the pre-blend it means that a filter wants linear anyway. 130797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //Other code may also be applying the pre-blend, so we'd need another 130897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //one with this and one without. 13096f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com SkGdiRGB* addr = (SkGdiRGB*)bits; 13106f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com for (int y = 0; y < glyph.fHeight; ++y) { 13116f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com for (int x = 0; x < glyph.fWidth; ++x) { 13126f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com int r = (addr[x] >> 16) & 0xFF; 13136f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com int g = (addr[x] >> 8) & 0xFF; 13146f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com int b = (addr[x] >> 0) & 0xFF; 13157430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com addr[x] = (table[r] << 16) | (table[g] << 8) | table[b]; 13166f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com } 131705a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com addr = SkTAddOffset<SkGdiRGB>(addr, srcRB); 13186f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com } 13196f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com } 13206f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com 132182a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com int width = glyph.fWidth; 132282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com size_t dstRB = glyph.rowBytes(); 132382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com if (isBW) { 132482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com const uint8_t* src = (const uint8_t*)bits; 132582a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com uint8_t* dst = (uint8_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 132682a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com for (int y = 0; y < glyph.fHeight; y++) { 132782a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com memcpy(dst, src, dstRB); 132882a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com src += srcRB; 132982a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com dst -= dstRB; 1330ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 13310abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#if SK_SHOW_TEXT_BLIT_COVERAGE 13320abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (glyph.fWidth > 0 && glyph.fHeight > 0) { 13330abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com int bitCount = width & 7; 13340abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com uint8_t* first = (uint8_t*)glyph.fImage; 13350abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com uint8_t* last = (uint8_t*)((char*)glyph.fImage + glyph.fHeight * dstRB - 1); 13360abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com *first |= 1 << 7; 13370abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com *last |= bitCount == 0 ? 1 : 1 << (8 - bitCount); 13380abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 13390abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#endif 134082a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com } else if (isAA) { 13416f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com // since the caller may require A8 for maskfilters, we can't check for BW 13426f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com // ... until we have the caller tell us that explicitly 13435e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const SkGdiRGB* src = (const SkGdiRGB*)bits; 1344a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com if (fPreBlend.isApplicable()) { 1345a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com rgb_to_a8<true>(src, srcRB, glyph, fPreBlend.fG); 134697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } else { 1347a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com rgb_to_a8<false>(src, srcRB, glyph, fPreBlend.fG); 134897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } 134982a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com } else { // LCD16 13505e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const SkGdiRGB* src = (const SkGdiRGB*)bits; 13515e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com if (is_rgb_really_bw(src, width, glyph.fHeight, srcRB)) { 135297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com rgb_to_bw(src, srcRB, glyph); 13535e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com ((SkGlyph*)&glyph)->fMaskFormat = SkMask::kBW_Format; 13545e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } else { 1355754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com if (SkMask::kLCD16_Format == glyph.fMaskFormat) { 1356a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com if (fPreBlend.isApplicable()) { 1357a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com rgb_to_lcd16<true>(src, srcRB, glyph, 1358a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com fPreBlend.fR, fPreBlend.fG, fPreBlend.fB); 135997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } else { 1360a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com rgb_to_lcd16<false>(src, srcRB, glyph, 1361a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com fPreBlend.fR, fPreBlend.fG, fPreBlend.fB); 136297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } 1363754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } else { 1364754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com SkASSERT(SkMask::kLCD32_Format == glyph.fMaskFormat); 1365a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com if (fPreBlend.isApplicable()) { 1366a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com rgb_to_lcd32<true>(src, srcRB, glyph, 1367a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com fPreBlend.fR, fPreBlend.fG, fPreBlend.fB); 136897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } else { 1369a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com rgb_to_lcd32<false>(src, srcRB, glyph, 1370a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com fPreBlend.fR, fPreBlend.fG, fPreBlend.fB); 137197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } 1372754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } 1373ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1374ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1375ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1376ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 13770abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.comclass GDIGlyphbufferPointIter { 13780abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.compublic: 137927e21fe577211c1c40cbf40d0385b02c69d04522skia.committer@gmail.com GDIGlyphbufferPointIter(const uint8_t* glyphbuf, DWORD total_size) 13800abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com : fHeaderIter(glyphbuf, total_size), fCurveIter(), fPointIter() 13810abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com { } 13820abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 13830abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com POINTFX next() { 13840abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.comnextHeader: 13850abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (!fCurveIter.isSet()) { 13860abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYGONHEADER* header = fHeaderIter.next(); 13870abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkASSERT(header); 13880abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fCurveIter.set(header); 13890abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYCURVE* curve = fCurveIter.next(); 13900abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkASSERT(curve); 13910abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fPointIter.set(curve); 13920abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return header->pfxStart; 13930abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 1394ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 13950abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const POINTFX* nextPoint = fPointIter.next(); 13960abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (NULL == nextPoint) { 13970abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYCURVE* curve = fCurveIter.next(); 13980abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (NULL == curve) { 13990abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fCurveIter.set(); 14000abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com goto nextHeader; 14010abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } else { 14020abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fPointIter.set(curve); 14030abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 14040abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com nextPoint = fPointIter.next(); 14050abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkASSERT(nextPoint); 14060abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 14070abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return *nextPoint; 14080abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 1409ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 14100abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com WORD currentCurveType() { 14110abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return fPointIter.fCurveType; 14120abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 141305a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com 14140abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.comprivate: 14150abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com /** Iterates over all of the polygon headers in a glyphbuf. */ 14160abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com class GDIPolygonHeaderIter { 14170abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com public: 141827e21fe577211c1c40cbf40d0385b02c69d04522skia.committer@gmail.com GDIPolygonHeaderIter(const uint8_t* glyphbuf, DWORD total_size) 14190abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com : fCurPolygon(reinterpret_cast<const TTPOLYGONHEADER*>(glyphbuf)) 14200abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com , fEndPolygon(SkTAddOffset<const TTPOLYGONHEADER>(glyphbuf, total_size)) 14210abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com { } 14220abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 14230abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYGONHEADER* next() { 14240abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (fCurPolygon >= fEndPolygon) { 14250abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return NULL; 14260abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 14270abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYGONHEADER* thisPolygon = fCurPolygon; 14280abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fCurPolygon = SkTAddOffset<const TTPOLYGONHEADER>(fCurPolygon, fCurPolygon->cb); 14290abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return thisPolygon; 14300abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 14310abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com private: 14320abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYGONHEADER* fCurPolygon; 14330abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYGONHEADER* fEndPolygon; 14340abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com }; 143505a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com 14360abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com /** Iterates over all of the polygon curves in a polygon header. */ 14370abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com class GDIPolygonCurveIter { 14380abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com public: 14390abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GDIPolygonCurveIter() : fCurCurve(NULL), fEndCurve(NULL) { } 14400abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 14410abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GDIPolygonCurveIter(const TTPOLYGONHEADER* curPolygon) 14420abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com : fCurCurve(SkTAddOffset<const TTPOLYCURVE>(curPolygon, sizeof(TTPOLYGONHEADER))) 14430abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com , fEndCurve(SkTAddOffset<const TTPOLYCURVE>(curPolygon, curPolygon->cb)) 14440abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com { } 14450abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 14460abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com bool isSet() { return fCurCurve != NULL; } 14470abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 14480abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com void set(const TTPOLYGONHEADER* curPolygon) { 14490abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fCurCurve = SkTAddOffset<const TTPOLYCURVE>(curPolygon, sizeof(TTPOLYGONHEADER)); 14500abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fEndCurve = SkTAddOffset<const TTPOLYCURVE>(curPolygon, curPolygon->cb); 14510abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 14520abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com void set() { 14530abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fCurCurve = NULL; 14540abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fEndCurve = NULL; 14550abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 14560abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 14570abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYCURVE* next() { 14580abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (fCurCurve >= fEndCurve) { 14590abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return NULL; 146005a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com } 14610abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYCURVE* thisCurve = fCurCurve; 14620abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fCurCurve = SkTAddOffset<const TTPOLYCURVE>(fCurCurve, size_of_TTPOLYCURVE(*fCurCurve)); 14630abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return thisCurve; 14640abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 14650abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com private: 14660abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com size_t size_of_TTPOLYCURVE(const TTPOLYCURVE& curve) { 14670abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return 2*sizeof(WORD) + curve.cpfx*sizeof(POINTFX); 146805a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com } 14690abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYCURVE* fCurCurve; 14700abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYCURVE* fEndCurve; 14710abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com }; 147205a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com 14730abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com /** Iterates over all of the polygon points in a polygon curve. */ 14740abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com class GDIPolygonCurvePointIter { 14750abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com public: 14760abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GDIPolygonCurvePointIter() : fCurveType(0), fCurPoint(NULL), fEndPoint(NULL) { } 147705a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com 14780abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GDIPolygonCurvePointIter(const TTPOLYCURVE* curPolygon) 14790abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com : fCurveType(curPolygon->wType) 14800abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com , fCurPoint(&curPolygon->apfx[0]) 14810abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com , fEndPoint(&curPolygon->apfx[curPolygon->cpfx]) 14820abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com { } 14830abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 14840abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com bool isSet() { return fCurPoint != NULL; } 14850abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 14860abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com void set(const TTPOLYCURVE* curPolygon) { 14870abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fCurveType = curPolygon->wType; 14880abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fCurPoint = &curPolygon->apfx[0]; 14890abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fEndPoint = &curPolygon->apfx[curPolygon->cpfx]; 14900abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 14910abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com void set() { 14920abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fCurPoint = NULL; 14930abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fEndPoint = NULL; 14940abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 14950abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 14960abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const POINTFX* next() { 14970abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (fCurPoint >= fEndPoint) { 14980abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return NULL; 149905a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com } 15000abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const POINTFX* thisPoint = fCurPoint; 15010abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com ++fCurPoint; 15020abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return thisPoint; 1503d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 1504ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 15050abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com WORD fCurveType; 15060abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com private: 15070abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const POINTFX* fCurPoint; 15080abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const POINTFX* fEndPoint; 15090abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com }; 15100abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 15110abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GDIPolygonHeaderIter fHeaderIter; 15120abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GDIPolygonCurveIter fCurveIter; 15130abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GDIPolygonCurvePointIter fPointIter; 15140abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com}; 15150abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 15160abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.comstatic void sk_path_from_gdi_path(SkPath* path, const uint8_t* glyphbuf, DWORD total_size) { 1517d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const uint8_t* cur_glyph = glyphbuf; 1518d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const uint8_t* end_glyph = glyphbuf + total_size; 1519ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1520d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com while (cur_glyph < end_glyph) { 1521d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const TTPOLYGONHEADER* th = (TTPOLYGONHEADER*)cur_glyph; 1522ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1523d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const uint8_t* end_poly = cur_glyph + th->cb; 1524d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const uint8_t* cur_poly = cur_glyph + sizeof(TTPOLYGONHEADER); 1525ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1526d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com path->moveTo(SkFixedToScalar( SkFIXEDToFixed(th->pfxStart.x)), 1527d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(th->pfxStart.y))); 1528ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1529d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com while (cur_poly < end_poly) { 1530d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const TTPOLYCURVE* pc = (const TTPOLYCURVE*)cur_poly; 1531ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1532d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (pc->wType == TT_PRIM_LINE) { 1533d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com for (uint16_t i = 0; i < pc->cpfx; i++) { 1534d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com path->lineTo(SkFixedToScalar( SkFIXEDToFixed(pc->apfx[i].x)), 1535d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(pc->apfx[i].y))); 1536ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1537d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 1538ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1539d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (pc->wType == TT_PRIM_QSPLINE) { 1540d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com for (uint16_t u = 0; u < pc->cpfx - 1; u++) { // Walk through points in spline 1541d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com POINTFX pnt_b = pc->apfx[u]; // B is always the current point 1542d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com POINTFX pnt_c = pc->apfx[u+1]; 1543ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1544d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (u < pc->cpfx - 2) { // If not on last spline, compute C 1545d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com pnt_c.x = SkFixedToFIXED(SkFixedAve(SkFIXEDToFixed(pnt_b.x), 1546d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFIXEDToFixed(pnt_c.x))); 1547d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com pnt_c.y = SkFixedToFIXED(SkFixedAve(SkFIXEDToFixed(pnt_b.y), 1548d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFIXEDToFixed(pnt_c.y))); 1549ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1550d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com 1551d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com path->quadTo(SkFixedToScalar( SkFIXEDToFixed(pnt_b.x)), 1552d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(pnt_b.y)), 1553d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFixedToScalar( SkFIXEDToFixed(pnt_c.x)), 1554d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(pnt_c.y))); 1555ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1556ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1557d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // Advance past this TTPOLYCURVE. 1558d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com cur_poly += sizeof(WORD) * 2 + sizeof(POINTFX) * pc->cpfx; 1559ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1560d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com cur_glyph += th->cb; 1561d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com path->close(); 1562ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1563ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1564ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 15650abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.comstatic void sk_path_from_gdi_paths(SkPath* path, const uint8_t* glyphbuf, DWORD total_size, 15660abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GDIGlyphbufferPointIter hintedYs) { 15670abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const uint8_t* cur_glyph = glyphbuf; 15680abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const uint8_t* end_glyph = glyphbuf + total_size; 15690abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 15700abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com while (cur_glyph < end_glyph) { 15710abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYGONHEADER* th = (TTPOLYGONHEADER*)cur_glyph; 15720abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 15730abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const uint8_t* end_poly = cur_glyph + th->cb; 15740abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const uint8_t* cur_poly = cur_glyph + sizeof(TTPOLYGONHEADER); 15750abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 15760abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com path->moveTo(SkFixedToScalar( SkFIXEDToFixed(th->pfxStart.x)), 15770abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(hintedYs.next().y))); 15780abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 15790abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com while (cur_poly < end_poly) { 15800abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYCURVE* pc = (const TTPOLYCURVE*)cur_poly; 15810abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 15820abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (pc->wType == TT_PRIM_LINE) { 15830abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com for (uint16_t i = 0; i < pc->cpfx; i++) { 15840abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com path->lineTo(SkFixedToScalar( SkFIXEDToFixed(pc->apfx[i].x)), 15850abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(hintedYs.next().y))); 15860abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 15870abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 15880abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 15890abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (pc->wType == TT_PRIM_QSPLINE) { 15900abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com POINTFX currentPoint = pc->apfx[0]; 15910abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com POINTFX hintedY = hintedYs.next(); 15920abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // only take the hinted y if it wasn't flipped 15930abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (hintedYs.currentCurveType() == TT_PRIM_QSPLINE) { 15940abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com currentPoint.y = hintedY.y; 15950abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 15960abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com for (uint16_t u = 0; u < pc->cpfx - 1; u++) { // Walk through points in spline 15970abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com POINTFX pnt_b = currentPoint;//pc->apfx[u]; // B is always the current point 15980abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com POINTFX pnt_c = pc->apfx[u+1]; 15990abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com POINTFX hintedY = hintedYs.next(); 16000abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // only take the hinted y if it wasn't flipped 16010abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (hintedYs.currentCurveType() == TT_PRIM_QSPLINE) { 16020abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com pnt_c.y = hintedY.y; 16030abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16040abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com currentPoint.x = pnt_c.x; 16050abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com currentPoint.y = pnt_c.y; 16060abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 16070abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (u < pc->cpfx - 2) { // If not on last spline, compute C 16080abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com pnt_c.x = SkFixedToFIXED(SkFixedAve(SkFIXEDToFixed(pnt_b.x), 16090abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkFIXEDToFixed(pnt_c.x))); 16100abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com pnt_c.y = SkFixedToFIXED(SkFixedAve(SkFIXEDToFixed(pnt_b.y), 16110abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkFIXEDToFixed(pnt_c.y))); 16120abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16130abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 16140abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com path->quadTo(SkFixedToScalar( SkFIXEDToFixed(pnt_b.x)), 16150abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(pnt_b.y)), 16160abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkFixedToScalar( SkFIXEDToFixed(pnt_c.x)), 16170abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(pnt_c.y))); 16180abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16190abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16200abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // Advance past this TTPOLYCURVE. 16210abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com cur_poly += sizeof(WORD) * 2 + sizeof(POINTFX) * pc->cpfx; 16220abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16230abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com cur_glyph += th->cb; 16240abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com path->close(); 16250abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16260abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com} 16270abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 162830ddd615c447fed73286151b463af20d309c85f1reed@google.comDWORD SkScalerContext_GDI::getGDIGlyphPath(const SkGlyph& glyph, UINT flags, 16290abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkAutoSTMalloc<BUFFERSIZE, uint8_t>* glyphbuf) 16300abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com{ 16310abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GLYPHMETRICS gm; 16320abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 16330abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com DWORD total_size = GetGlyphOutlineW(fDDC, glyph.fID, flags, &gm, BUFFERSIZE, glyphbuf->get(), &fMat22); 16340abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // Sometimes GetGlyphOutlineW returns a number larger than BUFFERSIZE even if BUFFERSIZE > 0. 16350abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // It has been verified that this does not involve a buffer overrun. 16360abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (GDI_ERROR == total_size || total_size > BUFFERSIZE) { 16370abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // GDI_ERROR because the BUFFERSIZE was too small, or because the data was not accessible. 16380abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // When the data is not accessable GetGlyphOutlineW fails rather quickly, 16390abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // so just try to get the size. If that fails then ensure the data is accessible. 16400abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com total_size = GetGlyphOutlineW(fDDC, glyph.fID, flags, &gm, 0, NULL, &fMat22); 16410abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (GDI_ERROR == total_size) { 16420abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com LogFontTypeface::EnsureAccessible(this->getTypeface()); 16430abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com total_size = GetGlyphOutlineW(fDDC, glyph.fID, flags, &gm, 0, NULL, &fMat22); 16440abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (GDI_ERROR == total_size) { 16450abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkASSERT(false); 16460abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return 0; 16470abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16480abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16490abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 16500abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com glyphbuf->reset(total_size); 16510abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 16520abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com DWORD ret = GetGlyphOutlineW(fDDC, glyph.fID, flags, &gm, total_size, glyphbuf->get(), &fMat22); 16530abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (GDI_ERROR == ret) { 16540abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com LogFontTypeface::EnsureAccessible(this->getTypeface()); 16550abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com ret = GetGlyphOutlineW(fDDC, glyph.fID, flags, &gm, total_size, glyphbuf->get(), &fMat22); 16560abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (GDI_ERROR == ret) { 16570abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkASSERT(false); 16580abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return 0; 16590abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16600abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16610abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16620abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return total_size; 16630abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com} 16640abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 166530ddd615c447fed73286151b463af20d309c85f1reed@google.comvoid SkScalerContext_GDI::generatePath(const SkGlyph& glyph, SkPath* path) { 16660abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkASSERT(&glyph && path); 16670abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkASSERT(fDDC); 16680abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 16690abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com path->reset(); 16700abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 16710abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // Out of all the fonts on a typical Windows box, 16720abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // 25% of glyphs require more than 2KB. 16730abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // 1% of glyphs require more than 4KB. 16740abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // 0.01% of glyphs require more than 8KB. 16750abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // 8KB is less than 1% of the normal 1MB stack on Windows. 16760abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // Note that some web fonts glyphs require more than 20KB. 16770abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com //static const DWORD BUFFERSIZE = (1 << 13); 16780abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 16790abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com //GDI only uses hinted outlines when axis aligned. 16800abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com UINT format = GGO_NATIVE | GGO_GLYPH_INDEX; 16810abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (fRec.getHinting() == SkPaint::kNo_Hinting || fRec.getHinting() == SkPaint::kSlight_Hinting){ 16820abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com format |= GGO_UNHINTED; 16830abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16840abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkAutoSTMalloc<BUFFERSIZE, uint8_t> glyphbuf(BUFFERSIZE); 16850abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com DWORD total_size = getGDIGlyphPath(glyph, format, &glyphbuf); 16860abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (0 == total_size) { 16870abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return; 16880abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16890abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 16900abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (fRec.getHinting() != SkPaint::kSlight_Hinting) { 16910abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com sk_path_from_gdi_path(path, glyphbuf, total_size); 16920abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } else { 16930abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com //GDI only uses hinted outlines when axis aligned. 16940abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com UINT format = GGO_NATIVE | GGO_GLYPH_INDEX; 16950abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 16960abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkAutoSTMalloc<BUFFERSIZE, uint8_t> hintedGlyphbuf(BUFFERSIZE); 16970abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com DWORD hinted_total_size = getGDIGlyphPath(glyph, format, &hintedGlyphbuf); 16980abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (0 == hinted_total_size) { 16990abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return; 17000abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 17010abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 17020abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com sk_path_from_gdi_paths(path, glyphbuf, total_size, 17030abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GDIGlyphbufferPointIter(hintedGlyphbuf, hinted_total_size)); 17040abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 17050abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com} 17060abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 1707484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comstatic void logfont_for_name(const char* familyName, LOGFONT* lf) { 1708484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com sk_bzero(lf, sizeof(LOGFONT)); 1709e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com#ifdef UNICODE 1710484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com // Get the buffer size needed first. 1711484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com size_t str_len = ::MultiByteToWideChar(CP_UTF8, 0, familyName, 1712484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com -1, NULL, 0); 1713484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com // Allocate a buffer (str_len already has terminating null 1714484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com // accounted for). 1715484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com wchar_t *wideFamilyName = new wchar_t[str_len]; 1716484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com // Now actually convert the string. 1717484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ::MultiByteToWideChar(CP_UTF8, 0, familyName, -1, 1718484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com wideFamilyName, str_len); 1719484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ::wcsncpy(lf->lfFaceName, wideFamilyName, LF_FACESIZE - 1); 1720484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com delete [] wideFamilyName; 1721484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com lf->lfFaceName[LF_FACESIZE-1] = L'\0'; 1722e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com#else 1723484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ::strncpy(lf->lfFaceName, familyName, LF_FACESIZE - 1); 1724484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com lf->lfFaceName[LF_FACESIZE - 1] = '\0'; 1725e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com#endif 1726e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com} 1727e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com 17285526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.comvoid LogFontTypeface::onGetFontDescriptor(SkFontDescriptor* desc, 17295526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.com bool* isLocalStream) const { 17307103f182ce61280eacb35f1832df350b642a5381bungeman@google.com // Get the actual name of the typeface. The logfont may not know this. 17315526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.com HFONT font = CreateFontIndirect(&fLogFont); 17327103f182ce61280eacb35f1832df350b642a5381bungeman@google.com 17337103f182ce61280eacb35f1832df350b642a5381bungeman@google.com HDC deviceContext = ::CreateCompatibleDC(NULL); 17347103f182ce61280eacb35f1832df350b642a5381bungeman@google.com HFONT savefont = (HFONT)SelectObject(deviceContext, font); 17357103f182ce61280eacb35f1832df350b642a5381bungeman@google.com 1736a980269c2498836101146adc729ef780fb89824ebungeman@google.com SkString familyName; 1737a980269c2498836101146adc729ef780fb89824ebungeman@google.com dcfontname_to_skstring(deviceContext, fLogFont, &familyName); 17387103f182ce61280eacb35f1832df350b642a5381bungeman@google.com 17397103f182ce61280eacb35f1832df350b642a5381bungeman@google.com if (deviceContext) { 17407103f182ce61280eacb35f1832df350b642a5381bungeman@google.com ::SelectObject(deviceContext, savefont); 17417103f182ce61280eacb35f1832df350b642a5381bungeman@google.com ::DeleteDC(deviceContext); 17427103f182ce61280eacb35f1832df350b642a5381bungeman@google.com } 17437103f182ce61280eacb35f1832df350b642a5381bungeman@google.com if (font) { 17447103f182ce61280eacb35f1832df350b642a5381bungeman@google.com ::DeleteObject(font); 17457103f182ce61280eacb35f1832df350b642a5381bungeman@google.com } 17467103f182ce61280eacb35f1832df350b642a5381bungeman@google.com 17475526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.com desc->setFamilyName(familyName.c_str()); 17485526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.com *isLocalStream = this->fSerializeAsStream; 1749ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1750ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1751ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic bool getWidthAdvance(HDC hdc, int gId, int16_t* advance) { 1752ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Initialize the MAT2 structure to the identify transformation matrix. 1753ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com static const MAT2 mat2 = {SkScalarToFIXED(1), SkScalarToFIXED(0), 1754ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkScalarToFIXED(0), SkScalarToFIXED(1)}; 1755ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int flags = GGO_METRICS | GGO_GLYPH_INDEX; 1756ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com GLYPHMETRICS gm; 1757ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (GDI_ERROR == GetGlyphOutline(hdc, gId, flags, &gm, 0, NULL, &mat2)) { 1758ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return false; 1759ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1760ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(advance); 1761ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com *advance = gm.gmCellIncX; 1762ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return true; 1763ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1764ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 17652689f615e364dc48ad73826564f5b13d2329179dreed@google.comSkAdvancedTypefaceMetrics* LogFontTypeface::onGetAdvancedTypefaceMetrics( 176637ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org SkAdvancedTypefaceMetrics::PerGlyphInfo perGlyphInfo, 176737ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org const uint32_t* glyphIDs, 17682689f615e364dc48ad73826564f5b13d2329179dreed@google.com uint32_t glyphIDsCount) const { 17692689f615e364dc48ad73826564f5b13d2329179dreed@google.com LOGFONT lf = fLogFont; 1770ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkAdvancedTypefaceMetrics* info = NULL; 1771ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1772ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HDC hdc = CreateCompatibleDC(NULL); 1773ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT font = CreateFontIndirect(&lf); 1774ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT savefont = (HFONT)SelectObject(hdc, font); 1775ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT designFont = NULL; 1776ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 177705b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com const char stem_chars[] = {'i', 'I', '!', '1'}; 177805b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com int16_t min_width; 177905b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com unsigned glyphCount; 178005b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com 1781ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // To request design units, create a logical font whose height is specified 1782ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // as unitsPerEm. 1783ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com OUTLINETEXTMETRIC otm; 178439698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com unsigned int otmRet = GetOutlineTextMetrics(hdc, sizeof(otm), &otm); 178539698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (0 == otmRet) { 1786055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com call_ensure_accessible(lf); 178739698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com otmRet = GetOutlineTextMetrics(hdc, sizeof(otm), &otm); 178839698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 178939698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (!otmRet || !GetTextFace(hdc, LF_FACESIZE, lf.lfFaceName)) { 1790ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com goto Error; 1791ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1792ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com lf.lfHeight = -SkToS32(otm.otmEMSquare); 1793ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com designFont = CreateFontIndirect(&lf); 1794ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SelectObject(hdc, designFont); 1795ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (!GetOutlineTextMetrics(hdc, sizeof(otm), &otm)) { 1796ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com goto Error; 1797ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 17987bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com glyphCount = calculateGlyphCount(hdc, fLogFont); 1799ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1800ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info = new SkAdvancedTypefaceMetrics; 1801ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fEmSize = otm.otmEMSquare; 1802ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fMultiMaster = false; 1803ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fLastGlyphID = SkToU16(glyphCount - 1); 1804ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle = 0; 18057103f182ce61280eacb35f1832df350b642a5381bungeman@google.com tchar_to_skstring(lf.lfFaceName, &info->fFontName); 1806ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 18076744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org if (perGlyphInfo & SkAdvancedTypefaceMetrics::kToUnicode_PerGlyphInfo) { 18086744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org populate_glyph_to_unicode(hdc, glyphCount, &(info->fGlyphToUnicode)); 18096744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 18106744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 1811d41e70de196e78e21e1001d23a7259785cbd0835vandebo@chromium.org if (glyphCount > 0 && 1812d41e70de196e78e21e1001d23a7259785cbd0835vandebo@chromium.org (otm.otmTextMetrics.tmPitchAndFamily & TMPF_TRUETYPE)) { 1813ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fType = SkAdvancedTypefaceMetrics::kTrueType_Font; 1814ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 1815ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fType = SkAdvancedTypefaceMetrics::kOther_Font; 1816ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fItalicAngle = 0; 1817ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fAscent = 0; 1818ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fDescent = 0; 1819ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStemV = 0; 1820ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fCapHeight = 0; 1821ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fBBox = SkIRect::MakeEmpty(); 1822390c6d7a9018e233a6519397ac6c739fb21a99efedisonn@google.com goto ReturnInfo; 1823ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 18245aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org 1825ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // If this bit is clear the font is a fixed pitch font. 1826ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (!(otm.otmTextMetrics.tmPitchAndFamily & TMPF_FIXED_PITCH)) { 1827ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kFixedPitch_Style; 1828ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1829ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (otm.otmTextMetrics.tmItalic) { 1830ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kItalic_Style; 1831ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1832ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (otm.otmTextMetrics.tmPitchAndFamily & FF_ROMAN) { 1833ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kSerif_Style; 1834ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else if (otm.otmTextMetrics.tmPitchAndFamily & FF_SCRIPT) { 1835ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kScript_Style; 1836ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1837ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1838ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // The main italic angle of the font, in tenths of a degree counterclockwise 1839ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // from vertical. 1840ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fItalicAngle = otm.otmItalicAngle / 10; 1841ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fAscent = SkToS16(otm.otmTextMetrics.tmAscent); 1842ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fDescent = SkToS16(-otm.otmTextMetrics.tmDescent); 1843ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // TODO(ctguil): Use alternate cap height calculation. 1844ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // MSDN says otmsCapEmHeight is not support but it is returning a value on 1845ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // my Win7 box. 1846ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fCapHeight = otm.otmsCapEmHeight; 1847ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fBBox = 1848ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkIRect::MakeLTRB(otm.otmrcFontBox.left, otm.otmrcFontBox.top, 1849ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com otm.otmrcFontBox.right, otm.otmrcFontBox.bottom); 1850ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1851ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Figure out a good guess for StemV - Min width of i, I, !, 1. 1852ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // This probably isn't very good with an italic font. 185305b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com min_width = SHRT_MAX; 1854ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStemV = 0; 1855ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com for (size_t i = 0; i < SK_ARRAY_COUNT(stem_chars); i++) { 1856ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ABC abcWidths; 1857ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (GetCharABCWidths(hdc, stem_chars[i], stem_chars[i], &abcWidths)) { 1858ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int16_t width = abcWidths.abcB; 1859ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (width > 0 && width < min_width) { 1860ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com min_width = width; 1861ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStemV = min_width; 1862ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1863ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1864ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1865ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1866ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // If bit 1 is set, the font may not be embedded in a document. 1867ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // If bit 1 is clear, the font can be embedded. 1868ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // If bit 2 is set, the embedding is read-only. 1869ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (otm.otmfsType & 0x1) { 1870ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fType = SkAdvancedTypefaceMetrics::kNotEmbeddable_Font; 18710e6dc0a320985ffd31f77eed8a41e62132b9ba95ctguil@chromium.org } else if (perGlyphInfo & 18720e6dc0a320985ffd31f77eed8a41e62132b9ba95ctguil@chromium.org SkAdvancedTypefaceMetrics::kHAdvance_PerGlyphInfo) { 18735aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org if (info->fStyle & SkAdvancedTypefaceMetrics::kFixedPitch_Style) { 18745aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org appendRange(&info->fGlyphWidths, 0); 18755aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org info->fGlyphWidths->fAdvance.append(1, &min_width); 18765aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org finishRange(info->fGlyphWidths.get(), 0, 18775aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org SkAdvancedTypefaceMetrics::WidthRange::kDefault); 18785aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org } else { 18795aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org info->fGlyphWidths.reset( 188037ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org getAdvanceData(hdc, 188137ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org glyphCount, 188237ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org glyphIDs, 188337ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org glyphIDsCount, 188437ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org &getWidthAdvance)); 18855aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org } 1886ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1887ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1888ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comError: 1889390c6d7a9018e233a6519397ac6c739fb21a99efedisonn@google.comReturnInfo: 1890ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SelectObject(hdc, savefont); 1891ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteObject(designFont); 1892ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteObject(font); 1893ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteDC(hdc); 1894ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1895ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return info; 1896ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1897ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1898a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com//Dummy representation of a Base64 encoded GUID from create_unique_font_name. 1899a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#define BASE64_GUID_ID "XXXXXXXXXXXXXXXXXXXXXXXX" 1900a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com//Length of GUID representation from create_id, including NULL terminator. 1901a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#define BASE64_GUID_ID_LEN SK_ARRAY_COUNT(BASE64_GUID_ID) 1902a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1903a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comSK_COMPILE_ASSERT(BASE64_GUID_ID_LEN < LF_FACESIZE, GUID_longer_than_facesize); 1904a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1905a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 1906a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com NameID 6 Postscript names cannot have the character '/'. 1907a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com It would be easier to hex encode the GUID, but that is 32 bytes, 1908a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com and many systems have issues with names longer than 28 bytes. 1909a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com The following need not be any standard base64 encoding. 1910a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com The encoded value is never decoded. 1911a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com*/ 1912d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.comstatic const char postscript_safe_base64_encode[] = 1913a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com "ABCDEFGHIJKLMNOPQRSTUVWXYZ" 1914a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com "abcdefghijklmnopqrstuvwxyz" 1915a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com "0123456789-_="; 1916a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1917a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 1918a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com Formats a GUID into Base64 and places it into buffer. 1919a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com buffer should have space for at least BASE64_GUID_ID_LEN characters. 1920a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com The string will always be null terminated. 1921a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com XXXXXXXXXXXXXXXXXXXXXXXX0 1922a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 1923a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comstatic void format_guid_b64(const GUID& guid, char* buffer, size_t bufferSize) { 1924a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com SkASSERT(bufferSize >= BASE64_GUID_ID_LEN); 1925a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com size_t written = SkBase64::Encode(&guid, sizeof(guid), buffer, postscript_safe_base64_encode); 1926a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com SkASSERT(written < LF_FACESIZE); 1927a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com buffer[written] = '\0'; 1928a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com} 1929a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1930a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 1931a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com Creates a Base64 encoded GUID and places it into buffer. 1932a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com buffer should have space for at least BASE64_GUID_ID_LEN characters. 1933a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com The string will always be null terminated. 1934a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com XXXXXXXXXXXXXXXXXXXXXXXX0 1935a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 1936a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comstatic HRESULT create_unique_font_name(char* buffer, size_t bufferSize) { 1937a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com GUID guid = {}; 1938a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com if (FAILED(CoCreateGuid(&guid))) { 1939a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return E_UNEXPECTED; 1940a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1941a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com format_guid_b64(guid, buffer, bufferSize); 1942a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1943a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return S_OK; 1944a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com} 1945a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1946a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 1947a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com Introduces a font to GDI. On failure will return NULL. The returned handle 1948a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com should eventually be passed to RemoveFontMemResourceEx. 1949a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com*/ 1950a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comstatic HANDLE activate_font(SkData* fontData) { 1951a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com DWORD numFonts = 0; 1952a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com //AddFontMemResourceEx just copies the data, but does not specify const. 1953a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com HANDLE fontHandle = AddFontMemResourceEx(const_cast<void*>(fontData->data()), 19544b18f5767ab1df7fedf0ff2e3a9eac7f7c500c36bungeman@google.com static_cast<DWORD>(fontData->size()), 1955a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 0, 1956a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com &numFonts); 1957a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1958a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com if (fontHandle != NULL && numFonts < 1) { 1959a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com RemoveFontMemResourceEx(fontHandle); 1960a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return NULL; 1961a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1962a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1963a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return fontHandle; 1964a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com} 1965a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1966437eea160b2f605d9074106891288e85baaecfefreed@google.comstatic SkTypeface* create_from_stream(SkStream* stream) { 1967a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Create a unique and unpredictable font name. 1968a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Avoids collisions and access from CSS. 1969a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com char familyName[BASE64_GUID_ID_LEN]; 1970a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com const int familyNameSize = SK_ARRAY_COUNT(familyName); 1971a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com if (FAILED(create_unique_font_name(familyName, familyNameSize))) { 1972a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return NULL; 1973a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1974d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com 1975a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Change the name of the font. 1976e9bbee397ce96aa6642a42823feb1d7c4a8ffd8bbungeman@google.com SkAutoTUnref<SkData> rewrittenFontData(SkOTUtils::RenameFont(stream, familyName, familyNameSize-1)); 1977e9bbee397ce96aa6642a42823feb1d7c4a8ffd8bbungeman@google.com if (NULL == rewrittenFontData.get()) { 1978a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return NULL; 1979a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1980ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1981a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Register the font with GDI. 1982e9bbee397ce96aa6642a42823feb1d7c4a8ffd8bbungeman@google.com HANDLE fontReference = activate_font(rewrittenFontData.get()); 1983a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com if (NULL == fontReference) { 1984a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return NULL; 1985a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1986a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1987a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Create the typeface. 1988a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com LOGFONT lf; 1989484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com logfont_for_name(familyName, &lf); 1990a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1991a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return SkCreateFontMemResourceTypefaceFromLOGFONT(lf, fontReference); 1992ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1993ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 19940042b9c2a2e6fe954cdfbcd5a5b7449cdf41a4c3reed@google.comSkStream* LogFontTypeface::onOpenStream(int* ttcIndex) const { 19950042b9c2a2e6fe954cdfbcd5a5b7449cdf41a4c3reed@google.com *ttcIndex = 0; 19960042b9c2a2e6fe954cdfbcd5a5b7449cdf41a4c3reed@google.com 1997f4c2622a1a3489988f2d85a81fdc132b17a92bddctguil@chromium.org const DWORD kTTCTag = 1998f4c2622a1a3489988f2d85a81fdc132b17a92bddctguil@chromium.org SkEndian_SwapBE32(SkSetFourByteTag('t', 't', 'c', 'f')); 19990042b9c2a2e6fe954cdfbcd5a5b7449cdf41a4c3reed@google.com LOGFONT lf = fLogFont; 2000ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 2001ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HDC hdc = ::CreateCompatibleDC(NULL); 200259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com HFONT font = CreateFontIndirect(&lf); 2003ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT savefont = (HFONT)SelectObject(hdc, font); 2004ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 2005d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org SkMemoryStream* stream = NULL; 2006d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org DWORD tables[2] = {kTTCTag, 0}; 2007d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org for (int i = 0; i < SK_ARRAY_COUNT(tables); i++) { 20084b18f5767ab1df7fedf0ff2e3a9eac7f7c500c36bungeman@google.com DWORD bufferSize = GetFontData(hdc, tables[i], 0, NULL, 0); 200939698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (bufferSize == GDI_ERROR) { 2010055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com call_ensure_accessible(lf); 201139698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com bufferSize = GetFontData(hdc, tables[i], 0, NULL, 0); 201239698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 2013d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org if (bufferSize != GDI_ERROR) { 2014d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org stream = new SkMemoryStream(bufferSize); 20154b18f5767ab1df7fedf0ff2e3a9eac7f7c500c36bungeman@google.com if (GetFontData(hdc, tables[i], 0, (void*)stream->getMemoryBase(), bufferSize)) { 2016d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org break; 2017d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org } else { 2018d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org delete stream; 2019d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org stream = NULL; 2020d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org } 2021d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org } 2022ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 2023ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 2024ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SelectObject(hdc, savefont); 2025ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteObject(font); 2026ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteDC(hdc); 2027ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 2028ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return stream; 2029ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 2030ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 20317bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.comint LogFontTypeface::onCountGlyphs() const { 20327bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com HDC hdc = ::CreateCompatibleDC(NULL); 20337bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com HFONT font = CreateFontIndirect(&fLogFont); 20347bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com HFONT savefont = (HFONT)SelectObject(hdc, font); 20357bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 20367bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com unsigned int glyphCount = calculateGlyphCount(hdc, fLogFont); 20377bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 20387bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com SelectObject(hdc, savefont); 20397bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com DeleteObject(font); 20407bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com DeleteDC(hdc); 20417bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 20427bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com return glyphCount; 20437bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com} 20447bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 20457bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.comint LogFontTypeface::onGetUPEM() const { 20467bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com HDC hdc = ::CreateCompatibleDC(NULL); 20477bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com HFONT font = CreateFontIndirect(&fLogFont); 20487bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com HFONT savefont = (HFONT)SelectObject(hdc, font); 20497bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 20507bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com unsigned int upem = calculateUPEM(hdc, fLogFont); 20517bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 20527bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com SelectObject(hdc, savefont); 20537bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com DeleteObject(font); 20547bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com DeleteDC(hdc); 20557bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 20567bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com return upem; 20577bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com} 20587bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 2059a980269c2498836101146adc729ef780fb89824ebungeman@google.comSkTypeface::LocalizedStrings* LogFontTypeface::onGetFamilyNames() const { 2060a980269c2498836101146adc729ef780fb89824ebungeman@google.com SkTypeface::LocalizedStrings* nameIter = 2061a980269c2498836101146adc729ef780fb89824ebungeman@google.com SkOTUtils::LocalizedStrings_NameTable::CreateForFamilyNames(*this); 2062a980269c2498836101146adc729ef780fb89824ebungeman@google.com if (NULL == nameIter) { 2063a980269c2498836101146adc729ef780fb89824ebungeman@google.com SkString familyName; 2064a980269c2498836101146adc729ef780fb89824ebungeman@google.com this->getFamilyName(&familyName); 2065a980269c2498836101146adc729ef780fb89824ebungeman@google.com SkString language("und"); //undetermined 2066a980269c2498836101146adc729ef780fb89824ebungeman@google.com nameIter = new SkOTUtils::LocalizedStrings_SingleName(familyName, language); 2067a980269c2498836101146adc729ef780fb89824ebungeman@google.com } 2068a980269c2498836101146adc729ef780fb89824ebungeman@google.com return nameIter; 2069a980269c2498836101146adc729ef780fb89824ebungeman@google.com} 2070a980269c2498836101146adc729ef780fb89824ebungeman@google.com 2071b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.comint LogFontTypeface::onGetTableTags(SkFontTableTag tags[]) const { 2072b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com SkSFNTHeader header; 2073b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com if (sizeof(header) != this->onGetTableData(0, 0, sizeof(header), &header)) { 2074b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com return 0; 2075b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com } 2076b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com 2077b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com int numTables = SkEndian_SwapBE16(header.numTables); 2078b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com 2079b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com if (tags) { 2080b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com size_t size = numTables * sizeof(SkSFNTHeader::TableDirectoryEntry); 2081b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com SkAutoSTMalloc<0x20, SkSFNTHeader::TableDirectoryEntry> dir(numTables); 2082b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com if (size != this->onGetTableData(0, sizeof(header), size, dir.get())) { 2083b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com return 0; 2084b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com } 2085b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com 2086b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com for (int i = 0; i < numTables; ++i) { 2087b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com tags[i] = SkEndian_SwapBE32(dir[i].tag); 2088b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com } 2089b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com } 2090b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com return numTables; 2091b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com} 2092b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com 2093b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.comsize_t LogFontTypeface::onGetTableData(SkFontTableTag tag, size_t offset, 2094b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com size_t length, void* data) const 2095b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com{ 2096b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com LOGFONT lf = fLogFont; 2097b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com 2098b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com HDC hdc = ::CreateCompatibleDC(NULL); 2099b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com HFONT font = CreateFontIndirect(&lf); 2100b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com HFONT savefont = (HFONT)SelectObject(hdc, font); 2101b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com 2102b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com tag = SkEndian_SwapBE32(tag); 2103b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com if (NULL == data) { 2104b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com length = 0; 2105b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com } 2106b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com DWORD bufferSize = GetFontData(hdc, tag, offset, data, length); 2107b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com if (bufferSize == GDI_ERROR) { 2108b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com call_ensure_accessible(lf); 2109b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com bufferSize = GetFontData(hdc, tag, offset, data, length); 2110b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com } 2111b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com 2112b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com SelectObject(hdc, savefont); 2113b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com DeleteObject(font); 2114b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com DeleteDC(hdc); 2115b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com 2116b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com return bufferSize == GDI_ERROR ? 0 : bufferSize; 2117b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com} 2118b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com 21190da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.comSkScalerContext* LogFontTypeface::onCreateScalerContext(const SkDescriptor* desc) const { 212030ddd615c447fed73286151b463af20d309c85f1reed@google.com SkScalerContext_GDI* ctx = SkNEW_ARGS(SkScalerContext_GDI, 212184e22d847fc84727bc220947162363ee1fe068fcreed@google.com (const_cast<LogFontTypeface*>(this), desc)); 212284e22d847fc84727bc220947162363ee1fe068fcreed@google.com if (!ctx->isValid()) { 212384e22d847fc84727bc220947162363ee1fe068fcreed@google.com SkDELETE(ctx); 212484e22d847fc84727bc220947162363ee1fe068fcreed@google.com ctx = NULL; 212584e22d847fc84727bc220947162363ee1fe068fcreed@google.com } 212684e22d847fc84727bc220947162363ee1fe068fcreed@google.com return ctx; 2127ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 2128ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 21290da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.comvoid LogFontTypeface::onFilterRec(SkScalerContextRec* rec) const { 2130c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org if (rec->fFlags & SkScalerContext::kLCD_BGROrder_Flag || 2131c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org rec->fFlags & SkScalerContext::kLCD_Vertical_Flag) 2132c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org { 2133c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org rec->fMaskFormat = SkMask::kA8_Format; 2134c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org rec->fFlags |= SkScalerContext::kGenA8FromLCD_Flag; 2135c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org } 2136c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org 2137e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com unsigned flagsWeDontSupport = SkScalerContext::kDevKernText_Flag | 2138e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kAutohinting_Flag | 2139e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kEmbeddedBitmapText_Flag | 2140e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kEmbolden_Flag | 2141e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kLCD_BGROrder_Flag | 2142e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kLCD_Vertical_Flag; 2143e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com rec->fFlags &= ~flagsWeDontSupport; 2144e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com 2145e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkPaint::Hinting h = rec->getHinting(); 2146e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com switch (h) { 2147e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kNo_Hinting: 21480abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com break; 2149e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kSlight_Hinting: 21500abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // Only do slight hinting when axis aligned. 21517c86d8eb3a61eae188bc8af2cd0363858eaea07ebungeman@google.com // TODO: re-enable slight hinting when FontHostTest can pass. 21527c86d8eb3a61eae188bc8af2cd0363858eaea07ebungeman@google.com //if (!isAxisAligned(*rec)) { 21530abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com h = SkPaint::kNo_Hinting; 21547c86d8eb3a61eae188bc8af2cd0363858eaea07ebungeman@google.com //} 2155e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com break; 2156e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kNormal_Hinting: 2157e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kFull_Hinting: 21580abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // TODO: need to be able to distinguish subpixel positioned glyphs 21590abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // and linear metrics. 21600abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com //rec->fFlags &= ~SkScalerContext::kSubpixelPositioning_Flag; 2161e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com h = SkPaint::kNormal_Hinting; 2162e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com break; 2163e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com default: 21640c00f21fee3f5cfa3aa7e5d46ff94cb8cf340451tomhudson@google.com SkDEBUGFAIL("unknown hinting"); 2165e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com } 21660abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com //TODO: if this is a bitmap font, squash hinting and subpixel. 2167e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com rec->setHinting(h); 2168da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com 21699181aa84aa288d2bc3ab079b6b40a79ac87d8807reed@google.com// turn this off since GDI might turn A8 into BW! Need a bigger fix. 21709181aa84aa288d2bc3ab079b6b40a79ac87d8807reed@google.com#if 0 2171da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com // Disable LCD when rotated, since GDI's output is ugly 2172da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com if (isLCD(*rec) && !isAxisAligned(*rec)) { 2173da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com rec->fMaskFormat = SkMask::kA8_Format; 2174da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com } 21759181aa84aa288d2bc3ab079b6b40a79ac87d8807reed@google.com#endif 2176754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com 21770da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.com if (!fCanBeLCD && isLCD(*rec)) { 2178cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com rec->fMaskFormat = SkMask::kA8_Format; 2179cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com rec->fFlags &= ~SkScalerContext::kGenA8FromLCD_Flag; 2180754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } 2181754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com} 2182070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.com 218330ddd615c447fed73286151b463af20d309c85f1reed@google.comstatic SkTypeface* create_typeface(const SkTypeface* familyFace, 218430ddd615c447fed73286151b463af20d309c85f1reed@google.com const char familyName[], 218530ddd615c447fed73286151b463af20d309c85f1reed@google.com unsigned styleBits) { 218630ddd615c447fed73286151b463af20d309c85f1reed@google.com LOGFONT lf; 218730ddd615c447fed73286151b463af20d309c85f1reed@google.com if (NULL == familyFace && NULL == familyName) { 218830ddd615c447fed73286151b463af20d309c85f1reed@google.com lf = get_default_font(); 218930ddd615c447fed73286151b463af20d309c85f1reed@google.com } else if (familyFace) { 219030ddd615c447fed73286151b463af20d309c85f1reed@google.com LogFontTypeface* face = (LogFontTypeface*)familyFace; 219130ddd615c447fed73286151b463af20d309c85f1reed@google.com lf = face->fLogFont; 219230ddd615c447fed73286151b463af20d309c85f1reed@google.com } else { 219330ddd615c447fed73286151b463af20d309c85f1reed@google.com logfont_for_name(familyName, &lf); 219430ddd615c447fed73286151b463af20d309c85f1reed@google.com } 219530ddd615c447fed73286151b463af20d309c85f1reed@google.com setStyle(&lf, (SkTypeface::Style)styleBits); 219630ddd615c447fed73286151b463af20d309c85f1reed@google.com return SkCreateTypefaceFromLOGFONT(lf); 219730ddd615c447fed73286151b463af20d309c85f1reed@google.com} 219830ddd615c447fed73286151b463af20d309c85f1reed@google.com 219930ddd615c447fed73286151b463af20d309c85f1reed@google.comSkTypeface* LogFontTypeface::onRefMatchingStyle(Style style) const { 220030ddd615c447fed73286151b463af20d309c85f1reed@google.com return create_typeface(this, NULL, style); 220130ddd615c447fed73286151b463af20d309c85f1reed@google.com} 220230ddd615c447fed73286151b463af20d309c85f1reed@google.com 2203070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.com/////////////////////////////////////////////////////////////////////////////// 2204070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.com 2205070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.com#include "SkFontMgr.h" 2206484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com#include "SkDataTable.h" 2207484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2208a980269c2498836101146adc729ef780fb89824ebungeman@google.comstatic bool valid_logfont_for_enum(const LOGFONT& lf) { 2209a980269c2498836101146adc729ef780fb89824ebungeman@google.com // TODO: Vector FON is unsupported and should not be listed. 2210a980269c2498836101146adc729ef780fb89824ebungeman@google.com return 2211a980269c2498836101146adc729ef780fb89824ebungeman@google.com // Ignore implicit vertical variants. 2212a980269c2498836101146adc729ef780fb89824ebungeman@google.com lf.lfFaceName[0] && lf.lfFaceName[0] != '@' 2213a980269c2498836101146adc729ef780fb89824ebungeman@google.com 2214a980269c2498836101146adc729ef780fb89824ebungeman@google.com // DEFAULT_CHARSET is used to get all fonts, but also implies all 2215a980269c2498836101146adc729ef780fb89824ebungeman@google.com // character sets. Filter assuming all fonts support ANSI_CHARSET. 2216a980269c2498836101146adc729ef780fb89824ebungeman@google.com && ANSI_CHARSET == lf.lfCharSet 2217a980269c2498836101146adc729ef780fb89824ebungeman@google.com ; 2218a980269c2498836101146adc729ef780fb89824ebungeman@google.com} 2219a980269c2498836101146adc729ef780fb89824ebungeman@google.com 2220a980269c2498836101146adc729ef780fb89824ebungeman@google.com/** An EnumFontFamExProc implementation which interprets builderParam as 2221a980269c2498836101146adc729ef780fb89824ebungeman@google.com * an SkTDArray<ENUMLOGFONTEX>* and appends logfonts which 2222a980269c2498836101146adc729ef780fb89824ebungeman@google.com * pass the valid_logfont_for_enum predicate. 2223a980269c2498836101146adc729ef780fb89824ebungeman@google.com */ 2224a980269c2498836101146adc729ef780fb89824ebungeman@google.comstatic int CALLBACK enum_family_proc(const LOGFONT* lf, const TEXTMETRIC*, 2225a980269c2498836101146adc729ef780fb89824ebungeman@google.com DWORD fontType, LPARAM builderParam) { 2226a980269c2498836101146adc729ef780fb89824ebungeman@google.com if (valid_logfont_for_enum(*lf)) { 2227a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com SkTDArray<ENUMLOGFONTEX>* array = (SkTDArray<ENUMLOGFONTEX>*)builderParam; 2228a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com *array->append() = *(ENUMLOGFONTEX*)lf; 2229484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2230484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return 1; // non-zero means continue 2231484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com} 2232484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2233484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comstatic SkFontStyle compute_fontstyle(const LOGFONT& lf) { 2234484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return SkFontStyle(lf.lfWeight, SkFontStyle::kNormal_Width, 2235484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com lf.lfItalic ? SkFontStyle::kItalic_Slant 2236484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com : SkFontStyle::kUpright_Slant); 2237484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com} 2238484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2239484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comclass SkFontStyleSetGDI : public SkFontStyleSet { 2240484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.compublic: 2241a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com SkFontStyleSetGDI(const TCHAR familyName[]) { 2242a980269c2498836101146adc729ef780fb89824ebungeman@google.com LOGFONT lf; 2243a980269c2498836101146adc729ef780fb89824ebungeman@google.com sk_bzero(&lf, sizeof(lf)); 2244a980269c2498836101146adc729ef780fb89824ebungeman@google.com lf.lfCharSet = DEFAULT_CHARSET; 2245a980269c2498836101146adc729ef780fb89824ebungeman@google.com _tcscpy_s(lf.lfFaceName, familyName); 2246a980269c2498836101146adc729ef780fb89824ebungeman@google.com 2247484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com HDC hdc = ::CreateCompatibleDC(NULL); 2248a980269c2498836101146adc729ef780fb89824ebungeman@google.com ::EnumFontFamiliesEx(hdc, &lf, enum_family_proc, (LPARAM)&fArray, 0); 2249484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ::DeleteDC(hdc); 2250484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2251484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2252484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual int count() SK_OVERRIDE { 2253484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return fArray.count(); 2254484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2255484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2256484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual void getStyle(int index, SkFontStyle* fs, SkString* styleName) SK_OVERRIDE { 2257484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com if (fs) { 2258a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com *fs = compute_fontstyle(fArray[index].elfLogFont); 2259a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com } 2260a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com if (styleName) { 2261a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com const ENUMLOGFONTEX& ref = fArray[index]; 2262a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com // For some reason, ENUMLOGFONTEX and LOGFONT disagree on their type in the 2263a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com // non-unicode version. 2264a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com // ENUMLOGFONTEX uses BYTE 2265a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com // LOGFONT uses CHAR 2266a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com // Here we assert they that the style name is logically the same (size) as 2267a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com // a TCHAR, so we can use the same converter function. 2268a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com SkASSERT(sizeof(TCHAR) == sizeof(ref.elfStyle[0])); 2269a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com tchar_to_skstring((const TCHAR*)ref.elfStyle, styleName); 2270484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2271484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2272484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2273484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual SkTypeface* createTypeface(int index) SK_OVERRIDE { 2274a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com return SkCreateTypefaceFromLOGFONT(fArray[index].elfLogFont); 2275484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2276484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2277484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual SkTypeface* matchStyle(const SkFontStyle& pattern) SK_OVERRIDE { 2278484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com // todo: 2279a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com return SkCreateTypefaceFromLOGFONT(fArray[0].elfLogFont); 2280484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2281484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2282484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comprivate: 2283a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com SkTDArray<ENUMLOGFONTEX> fArray; 2284484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com}; 2285484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2286484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comclass SkFontMgrGDI : public SkFontMgr { 2287a980269c2498836101146adc729ef780fb89824ebungeman@google.compublic: 2288a980269c2498836101146adc729ef780fb89824ebungeman@google.com SkFontMgrGDI() { 2289484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com LOGFONT lf; 2290484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com sk_bzero(&lf, sizeof(lf)); 2291484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com lf.lfCharSet = DEFAULT_CHARSET; 2292484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2293484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com HDC hdc = ::CreateCompatibleDC(NULL); 2294484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ::EnumFontFamiliesEx(hdc, &lf, enum_family_proc, (LPARAM)&fLogFontArray, 0); 2295484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ::DeleteDC(hdc); 2296484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2297484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2298484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comprotected: 2299484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual int onCountFamilies() SK_OVERRIDE { 2300484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return fLogFontArray.count(); 2301484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2302484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2303484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual void onGetFamilyName(int index, SkString* familyName) SK_OVERRIDE { 2304484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com SkASSERT((unsigned)index < (unsigned)fLogFontArray.count()); 2305a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com tchar_to_skstring(fLogFontArray[index].elfLogFont.lfFaceName, familyName); 2306484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2307484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2308484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual SkFontStyleSet* onCreateStyleSet(int index) SK_OVERRIDE { 2309484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com SkASSERT((unsigned)index < (unsigned)fLogFontArray.count()); 2310a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com return SkNEW_ARGS(SkFontStyleSetGDI, (fLogFontArray[index].elfLogFont.lfFaceName)); 2311484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2312484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2313484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual SkFontStyleSet* onMatchFamily(const char familyName[]) SK_OVERRIDE { 2314484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com if (NULL == familyName) { 2315484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com familyName = ""; // do we need this check??? 2316484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2317484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com LOGFONT lf; 2318484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com logfont_for_name(familyName, &lf); 2319a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com return SkNEW_ARGS(SkFontStyleSetGDI, (lf.lfFaceName)); 2320484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2321484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2322484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual SkTypeface* onMatchFamilyStyle(const char familyName[], 2323484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com const SkFontStyle& fontstyle) SK_OVERRIDE { 2324437eea160b2f605d9074106891288e85baaecfefreed@google.com // could be in base impl 2325484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com SkAutoTUnref<SkFontStyleSet> sset(this->matchFamily(familyName)); 2326484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return sset->matchStyle(fontstyle); 2327484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2328484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2329484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual SkTypeface* onMatchFaceStyle(const SkTypeface* familyMember, 2330484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com const SkFontStyle& fontstyle) SK_OVERRIDE { 2331437eea160b2f605d9074106891288e85baaecfefreed@google.com // could be in base impl 2332484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com SkString familyName; 2333484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ((LogFontTypeface*)familyMember)->getFamilyName(&familyName); 2334484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return this->matchFamilyStyle(familyName.c_str(), fontstyle); 2335484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2336484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2337437eea160b2f605d9074106891288e85baaecfefreed@google.com virtual SkTypeface* onCreateFromStream(SkStream* stream, int ttcIndex) SK_OVERRIDE { 2338437eea160b2f605d9074106891288e85baaecfefreed@google.com return create_from_stream(stream); 2339484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2340437eea160b2f605d9074106891288e85baaecfefreed@google.com 2341437eea160b2f605d9074106891288e85baaecfefreed@google.com virtual SkTypeface* onCreateFromData(SkData* data, int ttcIndex) SK_OVERRIDE { 2342437eea160b2f605d9074106891288e85baaecfefreed@google.com // could be in base impl 2343437eea160b2f605d9074106891288e85baaecfefreed@google.com SkAutoTUnref<SkStream> stream(SkNEW_ARGS(SkMemoryStream, (data))); 2344437eea160b2f605d9074106891288e85baaecfefreed@google.com return this->createFromStream(stream); 2345484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2346437eea160b2f605d9074106891288e85baaecfefreed@google.com 2347484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual SkTypeface* onCreateFromFile(const char path[], int ttcIndex) SK_OVERRIDE { 2348437eea160b2f605d9074106891288e85baaecfefreed@google.com // could be in base impl 2349437eea160b2f605d9074106891288e85baaecfefreed@google.com SkAutoTUnref<SkStream> stream(SkStream::NewFromFile(path)); 2350437eea160b2f605d9074106891288e85baaecfefreed@google.com return this->createFromStream(stream); 2351484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2352484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 235330ddd615c447fed73286151b463af20d309c85f1reed@google.com virtual SkTypeface* onLegacyCreateTypeface(const char familyName[], 235430ddd615c447fed73286151b463af20d309c85f1reed@google.com unsigned styleBits) SK_OVERRIDE { 235530ddd615c447fed73286151b463af20d309c85f1reed@google.com return create_typeface(NULL, familyName, styleBits); 235630ddd615c447fed73286151b463af20d309c85f1reed@google.com } 235730ddd615c447fed73286151b463af20d309c85f1reed@google.com 2358484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comprivate: 2359a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com SkTDArray<ENUMLOGFONTEX> fLogFontArray; 2360484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com}; 2361070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.com 236230ddd615c447fed73286151b463af20d309c85f1reed@google.com/////////////////////////////////////////////////////////////////////////////// 236330ddd615c447fed73286151b463af20d309c85f1reed@google.com 236430ddd615c447fed73286151b463af20d309c85f1reed@google.com#ifndef SK_FONTHOST_USES_FONTMGR 236530ddd615c447fed73286151b463af20d309c85f1reed@google.com 236630ddd615c447fed73286151b463af20d309c85f1reed@google.comSkTypeface* SkFontHost::CreateTypeface(const SkTypeface* familyFace, 236730ddd615c447fed73286151b463af20d309c85f1reed@google.com const char familyName[], 236830ddd615c447fed73286151b463af20d309c85f1reed@google.com SkTypeface::Style styleBits) { 236930ddd615c447fed73286151b463af20d309c85f1reed@google.com return create_typeface(familyFace, familyName, styleBits); 237030ddd615c447fed73286151b463af20d309c85f1reed@google.com} 237130ddd615c447fed73286151b463af20d309c85f1reed@google.com 237230ddd615c447fed73286151b463af20d309c85f1reed@google.comSkTypeface* SkFontHost::CreateTypefaceFromFile(const char path[]) { 237330ddd615c447fed73286151b463af20d309c85f1reed@google.com SkAutoTUnref<SkStream> stream(SkStream::NewFromFile(path)); 237430ddd615c447fed73286151b463af20d309c85f1reed@google.com return stream.get() ? CreateTypefaceFromStream(stream) : NULL; 237530ddd615c447fed73286151b463af20d309c85f1reed@google.com} 237630ddd615c447fed73286151b463af20d309c85f1reed@google.com 237730ddd615c447fed73286151b463af20d309c85f1reed@google.comSkTypeface* SkFontHost::CreateTypefaceFromStream(SkStream* stream) { 237830ddd615c447fed73286151b463af20d309c85f1reed@google.com return create_from_stream(stream); 237930ddd615c447fed73286151b463af20d309c85f1reed@google.com} 238030ddd615c447fed73286151b463af20d309c85f1reed@google.com 238130ddd615c447fed73286151b463af20d309c85f1reed@google.com#endif 238230ddd615c447fed73286151b463af20d309c85f1reed@google.com 2383070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.comSkFontMgr* SkFontMgr::Factory() { 2384484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return SkNEW(SkFontMgrGDI); 2385070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.com} 2386