SkFontHost_win.cpp revision 592273965a7fc7fc403252e420d15f6555b8f25d
1ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com/* 2ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com * Copyright 2006 The Android Open Source Project 3ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com * 4ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com * Use of this source code is governed by a BSD-style license that can be 5ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com * found in the LICENSE file. 6ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com */ 7ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 81ee76510f5dbf632d30975fc3509ef4f609156d2mtklein#include "SkTypes.h" 91ee76510f5dbf632d30975fc3509ef4f609156d2mtklein#if defined(SK_BUILD_FOR_WIN32) 101ee76510f5dbf632d30975fc3509ef4f609156d2mtklein 11ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkAdvancedTypefaceMetrics.h" 12a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include "SkBase64.h" 13a4083c97d48e8a4f88e2797d7363f141e3d42553Cary Clark#include "SkColorData.h" 14a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include "SkData.h" 15a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include "SkDescriptor.h" 16e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com#include "SkFontDescriptor.h" 17bbe50131413098bffed9186660c41f047d881596bungeman@google.com#include "SkGlyph.h" 1827f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com#include "SkHRESULT.h" 197cfd46aebda7b7d2b88e73621ed0d1be7244c2cabungeman#include "SkMakeUnique.h" 2097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com#include "SkMaskGamma.h" 21d3fbd34099a530b5415c95b1f2f8149ac417b9b3bungeman@google.com#include "SkMatrix22.h" 227bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com#include "SkOTTable_maxp.h" 23a980269c2498836101146adc729ef780fb89824ebungeman@google.com#include "SkOTTable_name.h" 24a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include "SkOTUtils.h" 2527889877c0e3c909dd4afd7b5e7b1d58cbf61ae6reed@google.com#include "SkPath.h" 26b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com#include "SkSFNTHeader.h" 27ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkStream.h" 28a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include "SkString.h" 2905a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com#include "SkTemplates.h" 30ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkTypeface_win.h" 3159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com#include "SkTypefaceCache.h" 32ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkUtils.h" 33ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 34a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include "SkTypes.h" 35a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include <tchar.h> 36a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include <usp10.h> 37a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include <objbase.h> 38ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 39f210f505ffffccc15ae5e91f8ccb9763ba7fc152reed@google.comstatic void (*gEnsureLOGFONTAccessibleProc)(const LOGFONT&); 40f210f505ffffccc15ae5e91f8ccb9763ba7fc152reed@google.com 41f210f505ffffccc15ae5e91f8ccb9763ba7fc152reed@google.comvoid SkTypeface_SetEnsureLOGFONTAccessibleProc(void (*proc)(const LOGFONT&)) { 42f210f505ffffccc15ae5e91f8ccb9763ba7fc152reed@google.com gEnsureLOGFONTAccessibleProc = proc; 43f210f505ffffccc15ae5e91f8ccb9763ba7fc152reed@google.com} 44f210f505ffffccc15ae5e91f8ccb9763ba7fc152reed@google.com 45055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.comstatic void call_ensure_accessible(const LOGFONT& lf) { 46055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com if (gEnsureLOGFONTAccessibleProc) { 47055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com gEnsureLOGFONTAccessibleProc(lf); 48055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com } 49055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com} 50055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com 51055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com/////////////////////////////////////////////////////////////////////////////// 52055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com 536f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com// always packed xxRRGGBB 546f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.comtypedef uint32_t SkGdiRGB; 556f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com 56a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com// define this in your Makefile or .gyp to enforce AA requests 57a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com// which GDI ignores at small sizes. This flag guarantees AA 58a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com// for rotated text, regardless of GDI's notions. 59a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com//#define SK_ENFORCE_ROTATED_TEXT_AA_ON_WINDOWS 60a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 6182a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.comstatic bool isLCD(const SkScalerContext::Rec& rec) { 62d54d3fc82456f8789b3e4dff40faeb7b670bcf4breed return SkMask::kLCD16_Format == rec.fMaskFormat; 6382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com} 6482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 65a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.comstatic bool bothZero(SkScalar a, SkScalar b) { 66a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com return 0 == a && 0 == b; 67a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com} 68a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 69a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com// returns false if there is any non-90-rotation or skew 70a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.comstatic bool isAxisAligned(const SkScalerContext::Rec& rec) { 71a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com return 0 == rec.fPreSkewX && 72a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com (bothZero(rec.fPost2x2[0][1], rec.fPost2x2[1][0]) || 73a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com bothZero(rec.fPost2x2[0][0], rec.fPost2x2[1][1])); 74a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com} 75a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 76a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.comstatic bool needToRenderWithSkia(const SkScalerContext::Rec& rec) { 77a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com#ifdef SK_ENFORCE_ROTATED_TEXT_AA_ON_WINDOWS 78a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // What we really want to catch is when GDI will ignore the AA request and give 79a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // us BW instead. Smallish rotated text is one heuristic, so this code is just 80a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // an approximation. We shouldn't need to do this for larger sizes, but at those 81a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // sizes, the quality difference gets less and less between our general 82a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // scanconverter and GDI's. 83a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com if (SkMask::kA8_Format == rec.fMaskFormat && !isAxisAligned(rec)) { 84a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com return true; 85a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com } 86a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com#endif 870abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return rec.getHinting() == SkPaint::kNo_Hinting || rec.getHinting() == SkPaint::kSlight_Hinting; 88a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com} 89a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 90a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.comstatic void tchar_to_skstring(const TCHAR t[], SkString* s) { 91484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com#ifdef UNICODE 9296fcdcc219d2a0d3579719b84b28bede76efba64halcanary size_t sSize = WideCharToMultiByte(CP_UTF8, 0, t, -1, nullptr, 0, nullptr, nullptr); 93484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com s->resize(sSize); 9496fcdcc219d2a0d3579719b84b28bede76efba64halcanary WideCharToMultiByte(CP_UTF8, 0, t, -1, s->writable_str(), sSize, nullptr, nullptr); 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. 10296fcdcc219d2a0d3579719b84b28bede76efba64halcanary if (0 == (fontNameLen = GetTextFace(deviceContext, 0, nullptr))) { 103a980269c2498836101146adc729ef780fb89824ebungeman@google.com call_ensure_accessible(lf); 10496fcdcc219d2a0d3579719b84b28bede76efba64halcanary if (0 == (fontNameLen = GetTextFace(deviceContext, 0, nullptr))) { 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) { 12153cbb0baac09e60e7633c15301a29a83afb1a8debungeman@google.com lf->lfHeight = -64; 12259f093d5d832a83b409879de287745e99f75ebfebungeman lf->lfWidth = 0; // lfWidth is related to lfHeight, not to the OS/2::usWidthClass. 12359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf->lfQuality = CLEARTYPE_QUALITY;//PROOF_QUALITY; 12459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf->lfCharSet = DEFAULT_CHARSET; 12582a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com// lf->lfClipPrecision = 64; 12659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com} 12759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 128a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungemanstatic SkFontStyle get_style(const LOGFONT& lf) { 129a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungeman return SkFontStyle(lf.lfWeight, 13059f093d5d832a83b409879de287745e99f75ebfebungeman SkFontStyle::kNormal_Width, 131a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungeman lf.lfItalic ? SkFontStyle::kItalic_Slant : SkFontStyle::kUpright_Slant); 132ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 133ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 134ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic inline FIXED SkFixedToFIXED(SkFixed x) { 135ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return *(FIXED*)(&x); 136ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 137a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.comstatic inline SkFixed SkFIXEDToFixed(FIXED x) { 138a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com return *(SkFixed*)(&x); 139a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com} 140ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 141ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic inline FIXED SkScalarToFIXED(SkScalar x) { 142ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkFixedToFIXED(SkScalarToFixed(x)); 143ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 144ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1454732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.comstatic inline SkScalar SkFIXEDToScalar(FIXED x) { 1464732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com return SkFixedToScalar(SkFIXEDToFixed(x)); 1474732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com} 1484732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com 1497bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.comstatic unsigned calculateGlyphCount(HDC hdc, const LOGFONT& lf) { 1507bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com TEXTMETRIC textMetric; 1517bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com if (0 == GetTextMetrics(hdc, &textMetric)) { 1527bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com textMetric.tmPitchAndFamily = TMPF_VECTOR; 1537bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com call_ensure_accessible(lf); 1547bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com GetTextMetrics(hdc, &textMetric); 1557bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com } 1567bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 1577bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com if (!(textMetric.tmPitchAndFamily & TMPF_VECTOR)) { 1587bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com return textMetric.tmLastChar; 1597bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com } 1607bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 161ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // The 'maxp' table stores the number of glyphs at offset 4, in 2 bytes. 162ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com uint16_t glyphs; 1637bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com if (GDI_ERROR != GetFontData(hdc, SkOTTableMaximumProfile::TAG, 4, &glyphs, sizeof(glyphs))) { 164ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkEndian_SwapBE16(glyphs); 165ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1665aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org 167ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Binary search for glyph count. 168ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com static const MAT2 mat2 = {{0, 1}, {0, 0}, {0, 0}, {0, 1}}; 169ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int32_t max = SK_MaxU16 + 1; 170ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int32_t min = 0; 171ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com GLYPHMETRICS gm; 172ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com while (min < max) { 173ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int32_t mid = min + ((max - min) / 2); 174ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (GetGlyphOutlineW(hdc, mid, GGO_METRICS | GGO_GLYPH_INDEX, &gm, 0, 17596fcdcc219d2a0d3579719b84b28bede76efba64halcanary nullptr, &mat2) == GDI_ERROR) { 176ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com max = mid; 177ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 178ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com min = mid + 1; 179ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 180ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 181ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(min == max); 182ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return min; 183ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 184ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1857bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.comstatic unsigned calculateUPEM(HDC hdc, const LOGFONT& lf) { 1867bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com TEXTMETRIC textMetric; 1877bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com if (0 == GetTextMetrics(hdc, &textMetric)) { 1887bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com textMetric.tmPitchAndFamily = TMPF_VECTOR; 1897bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com call_ensure_accessible(lf); 1907bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com GetTextMetrics(hdc, &textMetric); 1917bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com } 1927bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 1937bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com if (!(textMetric.tmPitchAndFamily & TMPF_VECTOR)) { 1947bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com return textMetric.tmMaxCharWidth; 1957bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com } 1967bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 1977bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com OUTLINETEXTMETRIC otm; 1987bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com unsigned int otmRet = GetOutlineTextMetrics(hdc, sizeof(otm), &otm); 1997bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com if (0 == otmRet) { 2007bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com call_ensure_accessible(lf); 2017bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com otmRet = GetOutlineTextMetrics(hdc, sizeof(otm), &otm); 2027bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com } 2037bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 2047bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com return (0 == otmRet) ? 0 : otm.otmEMSquare; 2057bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com} 2067bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 207ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comclass LogFontTypeface : public SkTypeface { 208ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.compublic: 209a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungeman LogFontTypeface(const SkFontStyle& style, const LOGFONT& lf, bool serializeAsStream) 210e3aea10428d1597838fd563c92340beaf969a9b4bungeman : SkTypeface(style, false) 211a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungeman , fLogFont(lf) 212a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungeman , fSerializeAsStream(serializeAsStream) 213a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungeman { 214cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com HFONT font = CreateFontIndirect(&lf); 215cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com 21696fcdcc219d2a0d3579719b84b28bede76efba64halcanary HDC deviceContext = ::CreateCompatibleDC(nullptr); 217cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com HFONT savefont = (HFONT)SelectObject(deviceContext, font); 218cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com 219cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com TEXTMETRIC textMetric; 220cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com if (0 == GetTextMetrics(deviceContext, &textMetric)) { 221055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com call_ensure_accessible(lf); 222cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com if (0 == GetTextMetrics(deviceContext, &textMetric)) { 223cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com textMetric.tmPitchAndFamily = TMPF_TRUETYPE; 224cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com } 225cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com } 226cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com if (deviceContext) { 227cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com ::SelectObject(deviceContext, savefont); 228cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com ::DeleteDC(deviceContext); 229cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com } 230cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com if (font) { 231cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com ::DeleteObject(font); 232cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com } 233cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com 234fe74765f0d302669ae49e68074492bdfe0ce6e6fbungeman@google.com // The fixed pitch bit is set if the font is *not* fixed pitch. 235fe74765f0d302669ae49e68074492bdfe0ce6e6fbungeman@google.com this->setIsFixedPitch((textMetric.tmPitchAndFamily & TMPF_FIXED_PITCH) == 0); 2366e45bda29edef867468cbdd7c062d0d99e884656bungeman this->setFontStyle(SkFontStyle(textMetric.tmWeight, style.width(), style.slant())); 237fe74765f0d302669ae49e68074492bdfe0ce6e6fbungeman@google.com 238cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com // Used a logfont on a memory context, should never get a device font. 239cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com // Therefore all TMPF_DEVICE will be PostScript (cubic) fonts. 2406e45bda29edef867468cbdd7c062d0d99e884656bungeman // If the font has cubic outlines, it will not be rendered with ClearType. 241cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com fCanBeLCD = !((textMetric.tmPitchAndFamily & TMPF_VECTOR) && 242cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com (textMetric.tmPitchAndFamily & TMPF_DEVICE)); 243cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com } 244ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 24559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LOGFONT fLogFont; 246e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com bool fSerializeAsStream; 247cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com bool fCanBeLCD; 248ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 24959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com static LogFontTypeface* Create(const LOGFONT& lf) { 250a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungeman return new LogFontTypeface(get_style(lf), lf, false); 251ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 2520da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.com 253055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com static void EnsureAccessible(const SkTypeface* face) { 254055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com call_ensure_accessible(static_cast<const LogFontTypeface*>(face)->fLogFont); 255055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com } 256055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com 2570da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.comprotected: 25836352bf5e38f45a70ee4f4fc132a38048d38206dmtklein SkStreamAsset* onOpenStream(int* ttcIndex) const override; 259a9322c2d86aaef1085c267dfc43cf0747f170a86reed SkScalerContext* onCreateScalerContext(const SkScalerContextEffects&, 260a9322c2d86aaef1085c267dfc43cf0747f170a86reed const SkDescriptor*) const override; 26136352bf5e38f45a70ee4f4fc132a38048d38206dmtklein void onFilterRec(SkScalerContextRec*) const override; 262209e4b1b70a5e9c2f504de15f038999ed9ee4ae5Hal Canary std::unique_ptr<SkAdvancedTypefaceMetrics> onGetAdvancedMetrics() const override; 26336352bf5e38f45a70ee4f4fc132a38048d38206dmtklein void onGetFontDescriptor(SkFontDescriptor*, bool*) const override; 264fc497343cbcbd526f77da913ae2feca0e1b1b866Ben Wagner int onCharsToGlyphs(const void* chars, Encoding encoding, 265fc497343cbcbd526f77da913ae2feca0e1b1b866Ben Wagner uint16_t glyphs[], int glyphCount) const override; 26636352bf5e38f45a70ee4f4fc132a38048d38206dmtklein int onCountGlyphs() const override; 26736352bf5e38f45a70ee4f4fc132a38048d38206dmtklein int onGetUPEM() const override; 26836352bf5e38f45a70ee4f4fc132a38048d38206dmtklein void onGetFamilyName(SkString* familyName) const override; 26936352bf5e38f45a70ee4f4fc132a38048d38206dmtklein SkTypeface::LocalizedStrings* onCreateFamilyNameIterator() const override; 270fc497343cbcbd526f77da913ae2feca0e1b1b866Ben Wagner int onGetVariationDesignPosition(SkFontArguments::VariationPosition::Coordinate coordinates[], 271fc497343cbcbd526f77da913ae2feca0e1b1b866Ben Wagner int coordinateCount) const override 272fc497343cbcbd526f77da913ae2feca0e1b1b866Ben Wagner { 273fc497343cbcbd526f77da913ae2feca0e1b1b866Ben Wagner return -1; 274fc497343cbcbd526f77da913ae2feca0e1b1b866Ben Wagner } 27536352bf5e38f45a70ee4f4fc132a38048d38206dmtklein int onGetTableTags(SkFontTableTag tags[]) const override; 276fc497343cbcbd526f77da913ae2feca0e1b1b866Ben Wagner size_t onGetTableData(SkFontTableTag, size_t offset, size_t length, void* data) const override; 277ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com}; 278ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 279a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comclass FontMemResourceTypeface : public LogFontTypeface { 280a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.compublic: 281a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com /** 282a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com * The created FontMemResourceTypeface takes ownership of fontMemResource. 283a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 284a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com static FontMemResourceTypeface* Create(const LOGFONT& lf, HANDLE fontMemResource) { 285a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungeman return new FontMemResourceTypeface(get_style(lf), lf, fontMemResource); 286a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 287a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 288a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comprotected: 28936352bf5e38f45a70ee4f4fc132a38048d38206dmtklein void weak_dispose() const override { 290a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com RemoveFontMemResourceEx(fFontMemResource); 291a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com //SkTypefaceCache::Remove(this); 292a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com INHERITED::weak_dispose(); 293a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 294a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 295a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comprivate: 29672cf4fcafa54cfa04c5ec7cb8eaa3acb144712ddbungeman@google.com /** 29772cf4fcafa54cfa04c5ec7cb8eaa3acb144712ddbungeman@google.com * Takes ownership of fontMemResource. 29872cf4fcafa54cfa04c5ec7cb8eaa3acb144712ddbungeman@google.com */ 299a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungeman FontMemResourceTypeface(const SkFontStyle& style, const LOGFONT& lf, HANDLE fontMemResource) 300a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungeman : LogFontTypeface(style, lf, true), fFontMemResource(fontMemResource) 301a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungeman { } 30272cf4fcafa54cfa04c5ec7cb8eaa3acb144712ddbungeman@google.com 30372cf4fcafa54cfa04c5ec7cb8eaa3acb144712ddbungeman@google.com HANDLE fFontMemResource; 30472cf4fcafa54cfa04c5ec7cb8eaa3acb144712ddbungeman@google.com 305a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com typedef LogFontTypeface INHERITED; 306a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com}; 307a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 308ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic const LOGFONT& get_default_font() { 309ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com static LOGFONT gDefaultFont; 310ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return gDefaultFont; 311ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 312ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 31382a455f0e9a7a50a399a58be906b48c24aeec056bungemanstatic bool FindByLogFont(SkTypeface* face, void* ctx) { 314a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com LogFontTypeface* lface = static_cast<LogFontTypeface*>(face); 31559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com const LOGFONT* lf = reinterpret_cast<const LOGFONT*>(ctx); 316ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 31782a455f0e9a7a50a399a58be906b48c24aeec056bungeman return !memcmp(&lface->fLogFont, lf, sizeof(LOGFONT)); 31859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com} 31959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 32059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com/** 32159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com * This guy is public. It first searches the cache, and if a match is not found, 32259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com * it creates a new face. 32359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com */ 32459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.comSkTypeface* SkCreateTypefaceFromLOGFONT(const LOGFONT& origLF) { 32559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LOGFONT lf = origLF; 32659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com make_canonical(&lf); 327ee51d1a6e43615ae640410013c36d2d9873e6aa5bungeman@google.com SkTypeface* face = SkTypefaceCache::FindByProcAndRef(FindByLogFont, &lf); 32896fcdcc219d2a0d3579719b84b28bede76efba64halcanary if (nullptr == face) { 32959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com face = LogFontTypeface::Create(lf); 33082a455f0e9a7a50a399a58be906b48c24aeec056bungeman SkTypefaceCache::Add(face); 33159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } 33259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com return face; 333ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 334ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 335db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com/** 336a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com * The created SkTypeface takes ownership of fontMemResource. 337a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 338a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comSkTypeface* SkCreateFontMemResourceTypefaceFromLOGFONT(const LOGFONT& origLF, HANDLE fontMemResource) { 339a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com LOGFONT lf = origLF; 340a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com make_canonical(&lf); 34160b6e9dbbc492f987a5b887dff60aec107ab70d0mtklein // We'll never get a cache hit, so no point in putting this in SkTypefaceCache. 34260b6e9dbbc492f987a5b887dff60aec107ab70d0mtklein return FontMemResourceTypeface::Create(lf, fontMemResource); 343a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com} 344a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 345a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 346db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com * This guy is public 347db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com */ 348db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.comvoid SkLOGFONTFromTypeface(const SkTypeface* face, LOGFONT* lf) { 34996fcdcc219d2a0d3579719b84b28bede76efba64halcanary if (nullptr == face) { 350db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com *lf = get_default_font(); 351db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com } else { 352a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com *lf = static_cast<const LogFontTypeface*>(face)->fLogFont; 353db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com } 354db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com} 355db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com 3566744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// Construct Glyph to Unicode table. 3576744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// Unicode code points that require conjugate pairs in utf16 are not 3586744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// supported. 3596744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// TODO(arthurhsu): Add support for conjugate pairs. It looks like that may 3606744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// require parsing the TTF cmap table (platform 4, encoding 12) directly instead 3616744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// of calling GetFontUnicodeRange(). 3626744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.orgstatic void populate_glyph_to_unicode(HDC fontHdc, const unsigned glyphCount, 3636744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkTDArray<SkUnichar>* glyphToUnicode) { 36496fcdcc219d2a0d3579719b84b28bede76efba64halcanary DWORD glyphSetBufferSize = GetFontUnicodeRanges(fontHdc, nullptr); 3656744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org if (!glyphSetBufferSize) { 3666744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org return; 3676744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 3686744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 3697ecc59610de72043e9b7ebaf1ef45c43425e54fcBen Wagner std::unique_ptr<BYTE[]> glyphSetBuffer(new BYTE[glyphSetBufferSize]); 3706744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org GLYPHSET* glyphSet = 3716744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org reinterpret_cast<LPGLYPHSET>(glyphSetBuffer.get()); 3726744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org if (GetFontUnicodeRanges(fontHdc, glyphSet) != glyphSetBufferSize) { 3736744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org return; 3746744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 3756744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 3766744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org glyphToUnicode->setCount(glyphCount); 3776744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org memset(glyphToUnicode->begin(), 0, glyphCount * sizeof(SkUnichar)); 3786744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org for (DWORD i = 0; i < glyphSet->cRanges; ++i) { 3796744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // There is no guarantee that within a Unicode range, the corresponding 3806744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // glyph id in a font file are continuous. So, even if we have ranges, 3816744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // we can't just use the first and last entry of the range to compute 3826744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // result. We need to enumerate them one by one. 3836744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org int count = glyphSet->ranges[i].cGlyphs; 3846744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkAutoTArray<WCHAR> chars(count + 1); 3856744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org chars[count] = 0; // termintate string 3866744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkAutoTArray<WORD> glyph(count); 3876744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org for (USHORT j = 0; j < count; ++j) { 3886744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org chars[j] = glyphSet->ranges[i].wcLow + j; 3896744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 3906744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org GetGlyphIndicesW(fontHdc, chars.get(), count, glyph.get(), 3916744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org GGI_MARK_NONEXISTING_GLYPHS); 3926744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // If the glyph ID is valid, and the glyph is not mapped, then we will 3936744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // fill in the char id into the vector. If the glyph is mapped already, 3946744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // skip it. 3956744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // TODO(arthurhsu): better improve this. e.g. Get all used char ids from 3966744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // font cache, then generate this mapping table from there. It's 3976744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // unlikely to have collisions since glyph reuse happens mostly for 3986744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // different Unicode pages. 3996744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org for (USHORT j = 0; j < count; ++j) { 4006744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org if (glyph[j] != 0xffff && glyph[j] < glyphCount && 4016744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org (*glyphToUnicode)[glyph[j]] == 0) { 4026744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org (*glyphToUnicode)[glyph[j]] = chars[j]; 4036744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 4046744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 4056744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 4066744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org} 4076744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 40899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com////////////////////////////////////////////////////////////////////////////////////// 40999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 41099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.comstatic int alignTo32(int n) { 41199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com return (n + 31) & ~31; 41299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com} 41399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 41499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.comstruct MyBitmapInfo : public BITMAPINFO { 41599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com RGBQUAD fMoreSpaceForColors[1]; 41699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com}; 41799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 41899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.comclass HDCOffscreen { 41999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.compublic: 42099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HDCOffscreen() { 42199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fFont = 0; 42299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fDC = 0; 42399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fBM = 0; 42496fcdcc219d2a0d3579719b84b28bede76efba64halcanary fBits = nullptr; 42599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fWidth = fHeight = 0; 42699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fIsBW = false; 42799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 42899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 42999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com ~HDCOffscreen() { 43099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (fDC) { 43199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com DeleteDC(fDC); 43299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 43399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (fBM) { 43499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com DeleteObject(fBM); 43599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 43699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 43799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 43899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com void init(HFONT font, const XFORM& xform) { 43999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fFont = font; 44099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fXform = xform; 44199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 44299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 44397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const void* draw(const SkGlyph&, bool isBW, size_t* srcRBPtr); 44499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 44599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.comprivate: 44699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HDC fDC; 44799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HBITMAP fBM; 44899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HFONT fFont; 44999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com XFORM fXform; 45099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com void* fBits; // points into fBM 45199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com int fWidth; 45299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com int fHeight; 45399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com bool fIsBW; 45499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com}; 45599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 456754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.comconst void* HDCOffscreen::draw(const SkGlyph& glyph, bool isBW, 45797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com size_t* srcRBPtr) { 45884e22d847fc84727bc220947162363ee1fe068fcreed@google.com // Can we share the scalercontext's fDDC, so we don't need to create 45984e22d847fc84727bc220947162363ee1fe068fcreed@google.com // a separate fDC here? 46099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (0 == fDC) { 46199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fDC = CreateCompatibleDC(0); 46299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (0 == fDC) { 46396fcdcc219d2a0d3579719b84b28bede76efba64halcanary return nullptr; 46499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 46599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SetGraphicsMode(fDC, GM_ADVANCED); 46699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SetBkMode(fDC, TRANSPARENT); 46799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SetTextAlign(fDC, TA_LEFT | TA_BASELINE); 46899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SelectObject(fDC, fFont); 46997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com 47097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com COLORREF color = 0x00FFFFFF; 471b58a639b2fbe919489654bb506efdb024a308a8ebsalomon@google.com SkDEBUGCODE(COLORREF prev =) SetTextColor(fDC, color); 47297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com SkASSERT(prev != CLR_INVALID); 47399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 47499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 47599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (fBM && (fIsBW != isBW || fWidth < glyph.fWidth || fHeight < glyph.fHeight)) { 47699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com DeleteObject(fBM); 47799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fBM = 0; 47899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 479754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com fIsBW = isBW; 48099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 48199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fWidth = SkMax32(fWidth, glyph.fWidth); 48299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fHeight = SkMax32(fHeight, glyph.fHeight); 48399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 48499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com int biWidth = isBW ? alignTo32(fWidth) : fWidth; 48599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 48699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (0 == fBM) { 48799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com MyBitmapInfo info; 48899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com sk_bzero(&info, sizeof(info)); 48999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (isBW) { 49099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com RGBQUAD blackQuad = { 0, 0, 0, 0 }; 49199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com RGBQUAD whiteQuad = { 0xFF, 0xFF, 0xFF, 0 }; 49299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiColors[0] = blackQuad; 49399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiColors[1] = whiteQuad; 49499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 49599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biSize = sizeof(info.bmiHeader); 49699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biWidth = biWidth; 49799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biHeight = fHeight; 49899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biPlanes = 1; 49999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biBitCount = isBW ? 1 : 32; 50099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biCompression = BI_RGB; 50199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (isBW) { 50299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biClrUsed = 2; 50399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 50499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fBM = CreateDIBSection(fDC, &info, DIB_RGB_COLORS, &fBits, 0, 0); 50599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (0 == fBM) { 50696fcdcc219d2a0d3579719b84b28bede76efba64halcanary return nullptr; 50799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 50899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SelectObject(fDC, fBM); 50999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 51099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 51199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com // erase 51299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com size_t srcRB = isBW ? (biWidth >> 3) : (fWidth << 2); 51399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com size_t size = fHeight * srcRB; 51497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com memset(fBits, 0, size); 51599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 51699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com XFORM xform = fXform; 51799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com xform.eDx = (float)-glyph.fLeft; 51899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com xform.eDy = (float)-glyph.fTop; 51999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SetWorldTransform(fDC, &xform); 52099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 52199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com uint16_t glyphID = glyph.getGlyphID(); 52296fcdcc219d2a0d3579719b84b28bede76efba64halcanary BOOL ret = ExtTextOutW(fDC, 0, 0, ETO_GLYPH_INDEX, nullptr, reinterpret_cast<LPCWSTR>(&glyphID), 1, nullptr); 52399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com GdiFlush(); 52439698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (0 == ret) { 52596fcdcc219d2a0d3579719b84b28bede76efba64halcanary return nullptr; 52639698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 52799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com *srcRBPtr = srcRB; 52899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com // offset to the start of the image 52999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com return (const char*)fBits + (fHeight - glyph.fHeight) * srcRB; 53099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com} 53199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 532b8a5c618d2e18d71707ae4dcafbe5153d7ff427freed@google.com////////////////////////////////////////////////////////////////////////////// 5330abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#define BUFFERSIZE (1 << 13) 53459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 53530ddd615c447fed73286151b463af20d309c85f1reed@google.comclass SkScalerContext_GDI : public SkScalerContext { 536ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.compublic: 5377cfd46aebda7b7d2b88e73621ed0d1be7244c2cabungeman SkScalerContext_GDI(sk_sp<LogFontTypeface>, 5387cfd46aebda7b7d2b88e73621ed0d1be7244c2cabungeman const SkScalerContextEffects&, 5397cfd46aebda7b7d2b88e73621ed0d1be7244c2cabungeman const SkDescriptor* desc); 54030ddd615c447fed73286151b463af20d309c85f1reed@google.com virtual ~SkScalerContext_GDI(); 541ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 54284e22d847fc84727bc220947162363ee1fe068fcreed@google.com // Returns true if the constructor was able to complete all of its 54384e22d847fc84727bc220947162363ee1fe068fcreed@google.com // initializations (which may include calling GDI). 54484e22d847fc84727bc220947162363ee1fe068fcreed@google.com bool isValid() const; 54584e22d847fc84727bc220947162363ee1fe068fcreed@google.com 546ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comprotected: 54736352bf5e38f45a70ee4f4fc132a38048d38206dmtklein unsigned generateGlyphCount() override; 54836352bf5e38f45a70ee4f4fc132a38048d38206dmtklein uint16_t generateCharToGlyph(SkUnichar uni) override; 54936352bf5e38f45a70ee4f4fc132a38048d38206dmtklein void generateAdvance(SkGlyph* glyph) override; 55036352bf5e38f45a70ee4f4fc132a38048d38206dmtklein void generateMetrics(SkGlyph* glyph) override; 55136352bf5e38f45a70ee4f4fc132a38048d38206dmtklein void generateImage(const SkGlyph& glyph) override; 5526e9ac12495f3b64b6ea8860bb9f99c43cd33aa08Ben Wagner void generatePath(SkGlyphID glyph, SkPath* path) override; 55336352bf5e38f45a70ee4f4fc132a38048d38206dmtklein void generateFontMetrics(SkPaint::FontMetrics*) override; 55499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 555ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comprivate: 5566e9ac12495f3b64b6ea8860bb9f99c43cd33aa08Ben Wagner DWORD getGDIGlyphPath(SkGlyphID glyph, UINT flags, 5570abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkAutoSTMalloc<BUFFERSIZE, uint8_t>* glyphbuf); 5580abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 55999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HDCOffscreen fOffscreen; 5600abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com /** fGsA is the non-rotational part of total matrix without the text height scale. 5610abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com * Used to find the magnitude of advances. 5620abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com */ 5630abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com MAT2 fGsA; 5646a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com /** The total matrix without the textSize. */ 565ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com MAT2 fMat22; 5666a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com /** Scales font to EM size. */ 5676a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com MAT2 fHighResMat22; 568ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HDC fDDC; 569ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT fSavefont; 570ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT fFont; 571ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SCRIPT_CACHE fSC; 572ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int fGlyphCount; 5731dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 5746a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com /** The total matrix which also removes EM scale. */ 5751dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com SkMatrix fHiResMatrix; 5760abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com /** fG_inv is the inverse of the rotational part of the total matrix. 5770abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com * Used to set the direction of advances. 5780abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com */ 5790abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkMatrix fG_inv; 580a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com enum Type { 5814732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com kTrueType_Type, kBitmap_Type, kLine_Type 582a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } fType; 583a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com TEXTMETRIC fTM; 584ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com}; 585ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 586ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic FIXED float2FIXED(float x) { 587ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkFixedToFIXED(SkFloatToFixed(x)); 588ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 589ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 5906b3eacb0dfaeb3374d410c8c041bd39cd066e1eabenjaminwagnerstatic inline float FIXED2float(FIXED x) { 5916b3eacb0dfaeb3374d410c8c041bd39cd066e1eabenjaminwagner return SkFixedToFloat(SkFIXEDToFixed(x)); 5926b3eacb0dfaeb3374d410c8c041bd39cd066e1eabenjaminwagner} 5936b3eacb0dfaeb3374d410c8c041bd39cd066e1eabenjaminwagner 59482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.comstatic BYTE compute_quality(const SkScalerContext::Rec& rec) { 59582a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com switch (rec.fMaskFormat) { 59682a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com case SkMask::kBW_Format: 59782a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com return NONANTIALIASED_QUALITY; 59882a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com case SkMask::kLCD16_Format: 59982a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com return CLEARTYPE_QUALITY; 60082a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com default: 6018351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com if (rec.fFlags & SkScalerContext::kGenA8FromLCD_Flag) { 6028351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com return CLEARTYPE_QUALITY; 6038351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com } else { 6048351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com return ANTIALIASED_QUALITY; 6058351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com } 60682a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com } 60782a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com} 60882a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 6097cfd46aebda7b7d2b88e73621ed0d1be7244c2cabungemanSkScalerContext_GDI::SkScalerContext_GDI(sk_sp<LogFontTypeface> rawTypeface, 610a9322c2d86aaef1085c267dfc43cf0747f170a86reed const SkScalerContextEffects& effects, 611a9322c2d86aaef1085c267dfc43cf0747f170a86reed const SkDescriptor* desc) 6127cfd46aebda7b7d2b88e73621ed0d1be7244c2cabungeman : SkScalerContext(std::move(rawTypeface), effects, desc) 613055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com , fDDC(0) 614055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com , fSavefont(0) 61584e22d847fc84727bc220947162363ee1fe068fcreed@google.com , fFont(0) 616055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com , fSC(0) 61705a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com , fGlyphCount(-1) 61805a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com{ 6197cfd46aebda7b7d2b88e73621ed0d1be7244c2cabungeman LogFontTypeface* typeface = static_cast<LogFontTypeface*>(this->getTypeface()); 620055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com 62196fcdcc219d2a0d3579719b84b28bede76efba64halcanary fDDC = ::CreateCompatibleDC(nullptr); 62284e22d847fc84727bc220947162363ee1fe068fcreed@google.com if (!fDDC) { 62384e22d847fc84727bc220947162363ee1fe068fcreed@google.com return; 62484e22d847fc84727bc220947162363ee1fe068fcreed@google.com } 6251dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com SetGraphicsMode(fDDC, GM_ADVANCED); 626ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SetBkMode(fDDC, TRANSPARENT); 62727e21fe577211c1c40cbf40d0385b02c69d04522skia.committer@gmail.com 6286f94076da504a9e292c7f6173b039d2692d47c51bungeman // When GDI hinting, remove the entire Y scale from sA and GsA. (Prevents 'linear' metrics.) 6296f94076da504a9e292c7f6173b039d2692d47c51bungeman // When not hinting, remove only the integer Y scale from sA and GsA. (Applied by GDI.) 6305f14c5e038a16c80d50c2f87ae7c8775f977456cbungeman SkScalerContextRec::PreMatrixScale scaleConstraints = 6315f14c5e038a16c80d50c2f87ae7c8775f977456cbungeman (fRec.getHinting() == SkPaint::kNo_Hinting || fRec.getHinting() == SkPaint::kSlight_Hinting) 6325f14c5e038a16c80d50c2f87ae7c8775f977456cbungeman ? SkScalerContextRec::kVerticalInteger_PreMatrixScale 6335f14c5e038a16c80d50c2f87ae7c8775f977456cbungeman : SkScalerContextRec::kVertical_PreMatrixScale; 6345f14c5e038a16c80d50c2f87ae7c8775f977456cbungeman SkVector scale; 6355f14c5e038a16c80d50c2f87ae7c8775f977456cbungeman SkMatrix sA; 6365f14c5e038a16c80d50c2f87ae7c8775f977456cbungeman SkMatrix GsA; 6375f14c5e038a16c80d50c2f87ae7c8775f977456cbungeman SkMatrix A; 6385f14c5e038a16c80d50c2f87ae7c8775f977456cbungeman fRec.computeMatrices(scaleConstraints, &scale, &sA, &GsA, &fG_inv, &A); 6390abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 6400abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fGsA.eM11 = SkScalarToFIXED(GsA.get(SkMatrix::kMScaleX)); 6410abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fGsA.eM12 = SkScalarToFIXED(-GsA.get(SkMatrix::kMSkewY)); // This should be ~0. 6420abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fGsA.eM21 = SkScalarToFIXED(-GsA.get(SkMatrix::kMSkewX)); 6430abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fGsA.eM22 = SkScalarToFIXED(GsA.get(SkMatrix::kMScaleY)); 6440abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 6456f94076da504a9e292c7f6173b039d2692d47c51bungeman // When not hinting, scale was computed with kVerticalInteger, so is already an integer. 6466f94076da504a9e292c7f6173b039d2692d47c51bungeman // The sA and GsA transforms will be used to create 'linear' metrics. 6476f94076da504a9e292c7f6173b039d2692d47c51bungeman 6486f94076da504a9e292c7f6173b039d2692d47c51bungeman // When hinting, scale was computed with kVertical, stating that our port can handle 6496f94076da504a9e292c7f6173b039d2692d47c51bungeman // non-integer scales. This is done so that sA and GsA are computed without any 'residual' 6506f94076da504a9e292c7f6173b039d2692d47c51bungeman // scale in them, preventing 'linear' metrics. However, GDI cannot actually handle non-integer 6516f94076da504a9e292c7f6173b039d2692d47c51bungeman // scales so we need to round in this case. This is fine, since all of the scale has been 6526f94076da504a9e292c7f6173b039d2692d47c51bungeman // removed from sA and GsA, so GDI will be handling the scale completely. 6536f94076da504a9e292c7f6173b039d2692d47c51bungeman SkScalar gdiTextSize = SkScalarRoundToScalar(scale.fY); 6546f94076da504a9e292c7f6173b039d2692d47c51bungeman 6556f94076da504a9e292c7f6173b039d2692d47c51bungeman // GDI will not accept a size of zero, so round the range [0, 1] to 1. 6566f94076da504a9e292c7f6173b039d2692d47c51bungeman // If the size was non-zero, the scale factors will also be non-zero and 1px tall text is drawn. 6576f94076da504a9e292c7f6173b039d2692d47c51bungeman // If the size actually was zero, the scale factors will also be zero, so GDI will draw nothing. 6585f14c5e038a16c80d50c2f87ae7c8775f977456cbungeman if (gdiTextSize == 0) { 6595f14c5e038a16c80d50c2f87ae7c8775f977456cbungeman gdiTextSize = SK_Scalar1; 6605f14c5e038a16c80d50c2f87ae7c8775f977456cbungeman } 661ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 662055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com LOGFONT lf = typeface->fLogFont; 66311ba3199f3edc7883ada4fd941d231f8f4883720bungeman@google.com lf.lfHeight = -SkScalarTruncToInt(gdiTextSize); 66482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com lf.lfQuality = compute_quality(fRec); 665ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fFont = CreateFontIndirect(&lf); 66684e22d847fc84727bc220947162363ee1fe068fcreed@google.com if (!fFont) { 66784e22d847fc84727bc220947162363ee1fe068fcreed@google.com return; 66884e22d847fc84727bc220947162363ee1fe068fcreed@google.com } 6691dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 670ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fSavefont = (HFONT)SelectObject(fDDC, fFont); 671a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 672a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (0 == GetTextMetrics(fDDC, &fTM)) { 673055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com call_ensure_accessible(lf); 674a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (0 == GetTextMetrics(fDDC, &fTM)) { 675a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fTM.tmPitchAndFamily = TMPF_TRUETYPE; 676a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 677a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 67890b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com 679d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com XFORM xform; 68090b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com if (fTM.tmPitchAndFamily & TMPF_VECTOR) { 6814732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com // Used a logfont on a memory context, should never get a device font. 6824732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com // Therefore all TMPF_DEVICE will be PostScript fonts. 6834732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com 6844732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com // If TMPF_VECTOR is set, one of TMPF_TRUETYPE or TMPF_DEVICE means that 6854732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com // we have an outline font. Otherwise we have a vector FON, which is 6864732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com // scalable, but not an outline font. 6874732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com // This was determined by testing with Type1 PFM/PFB and 6884732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com // OpenTypeCFF OTF, as well as looking at Wine bugs and sources. 6894732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com if (fTM.tmPitchAndFamily & (TMPF_TRUETYPE | TMPF_DEVICE)) { 6904732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com // Truetype or PostScript. 6914732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com fType = SkScalerContext_GDI::kTrueType_Type; 6924732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com } else { 6934732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com // Stroked FON. 6944732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com fType = SkScalerContext_GDI::kLine_Type; 6954732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com } 696a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 697d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // fPost2x2 is column-major, left handed (y down). 698d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // XFORM 2x2 is row-major, left handed (y down). 6990abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com xform.eM11 = SkScalarToFloat(sA.get(SkMatrix::kMScaleX)); 7000abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com xform.eM12 = SkScalarToFloat(sA.get(SkMatrix::kMSkewY)); 7010abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com xform.eM21 = SkScalarToFloat(sA.get(SkMatrix::kMSkewX)); 7020abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com xform.eM22 = SkScalarToFloat(sA.get(SkMatrix::kMScaleY)); 703d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eDx = 0; 704d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eDy = 0; 705d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com 706d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // MAT2 is row major, right handed (y up). 707d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM11 = float2FIXED(xform.eM11); 708d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM12 = float2FIXED(-xform.eM12); 709d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM21 = float2FIXED(-xform.eM21); 710d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM22 = float2FIXED(xform.eM22); 711a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 712a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (needToRenderWithSkia(fRec)) { 713a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com this->forceGenerateImageFromPath(); 714a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 715a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 71611ba3199f3edc7883ada4fd941d231f8f4883720bungeman@google.com // Create a hires matrix if we need linear metrics. 7170abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (this->isSubpixel()) { 7180abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com OUTLINETEXTMETRIC otm; 7190abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com UINT success = GetOutlineTextMetrics(fDDC, sizeof(otm), &otm); 7200abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (0 == success) { 7210abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com call_ensure_accessible(lf); 7220abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com success = GetOutlineTextMetrics(fDDC, sizeof(otm), &otm); 7230abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 7240abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (0 != success) { 72511ba3199f3edc7883ada4fd941d231f8f4883720bungeman@google.com SkScalar upem = SkIntToScalar(otm.otmEMSquare); 7266a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com 72711ba3199f3edc7883ada4fd941d231f8f4883720bungeman@google.com SkScalar gdiTextSizeToEMScale = upem / gdiTextSize; 72811ba3199f3edc7883ada4fd941d231f8f4883720bungeman@google.com fHighResMat22.eM11 = float2FIXED(gdiTextSizeToEMScale); 7296a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com fHighResMat22.eM12 = float2FIXED(0); 7306a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com fHighResMat22.eM21 = float2FIXED(0); 73111ba3199f3edc7883ada4fd941d231f8f4883720bungeman@google.com fHighResMat22.eM22 = float2FIXED(gdiTextSizeToEMScale); 7326a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com 73311ba3199f3edc7883ada4fd941d231f8f4883720bungeman@google.com SkScalar removeEMScale = SkScalarInvert(upem); 7346a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com fHiResMatrix = A; 73511ba3199f3edc7883ada4fd941d231f8f4883720bungeman@google.com fHiResMatrix.preScale(removeEMScale, removeEMScale); 7360abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 7370abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 7380abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 739a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } else { 740a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com // Assume bitmap 74130ddd615c447fed73286151b463af20d309c85f1reed@google.com fType = SkScalerContext_GDI::kBitmap_Type; 742a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 743d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM11 = 1.0f; 744d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM12 = 0.0f; 745d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM21 = 0.0f; 746d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM22 = 1.0f; 747d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eDx = 0.0f; 748d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eDy = 0.0f; 749a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 750d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // fPost2x2 is column-major, left handed (y down). 751d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // MAT2 is row major, right handed (y up). 752a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fMat22.eM11 = SkScalarToFIXED(fRec.fPost2x2[0][0]); 753d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM12 = SkScalarToFIXED(-fRec.fPost2x2[1][0]); 754a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fMat22.eM21 = SkScalarToFIXED(-fRec.fPost2x2[0][1]); 755d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM22 = SkScalarToFIXED(fRec.fPost2x2[1][1]); 756a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com } 75799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 758d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fOffscreen.init(fFont, xform); 759ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 760ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 76130ddd615c447fed73286151b463af20d309c85f1reed@google.comSkScalerContext_GDI::~SkScalerContext_GDI() { 762ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fDDC) { 763ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::SelectObject(fDDC, fSavefont); 764ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::DeleteDC(fDDC); 765ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 766ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fFont) { 767ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::DeleteObject(fFont); 768ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 769ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fSC) { 770ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::ScriptFreeCache(&fSC); 771ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 772ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 773ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 77430ddd615c447fed73286151b463af20d309c85f1reed@google.combool SkScalerContext_GDI::isValid() const { 77584e22d847fc84727bc220947162363ee1fe068fcreed@google.com return fDDC && fFont; 77684e22d847fc84727bc220947162363ee1fe068fcreed@google.com} 77784e22d847fc84727bc220947162363ee1fe068fcreed@google.com 77830ddd615c447fed73286151b463af20d309c85f1reed@google.comunsigned SkScalerContext_GDI::generateGlyphCount() { 779ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fGlyphCount < 0) { 7807bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com fGlyphCount = calculateGlyphCount( 7817bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com fDDC, static_cast<const LogFontTypeface*>(this->getTypeface())->fLogFont); 782ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 783ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return fGlyphCount; 784ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 785ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 78633346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.comuint16_t SkScalerContext_GDI::generateCharToGlyph(SkUnichar utf32) { 787ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com uint16_t index = 0; 78833346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com WCHAR utf16[2]; 789ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // TODO(ctguil): Support characters that generate more than one glyph. 79033346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com if (SkUTF16_FromUnichar(utf32, (uint16_t*)utf16) == 1) { 791ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Type1 fonts fail with uniscribe API. Use GetGlyphIndices for plane 0. 7927bd141dce43ea3405bc60c9c84e6f910b851b079skia.committer@gmail.com 79333346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com /** Real documentation for GetGlyphIndiciesW: 79433346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com * 79533346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com * When GGI_MARK_NONEXISTING_GLYPHS is not specified and a character does not map to a 79633346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com * glyph, then the 'default character's glyph is returned instead. The 'default character' 7974732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com * is available in fTM.tmDefaultChar. FON fonts have a default character, and there exists 7984732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com * a usDefaultChar in the 'OS/2' table, version 2 and later. If there is no 79933346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com * 'default character' specified by the font, then often the first character found is used. 80033346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com * 80133346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com * When GGI_MARK_NONEXISTING_GLYPHS is specified and a character does not map to a glyph, 80233346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com * then the glyph 0xFFFF is used. In Windows XP and earlier, Bitmap/Vector FON usually use 80333346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com * glyph 0x1F instead ('Terminal' appears to be special, returning 0xFFFF). 80433346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com * Type1 PFM/PFB, TT, OT TT, OT CFF all appear to use 0xFFFF, even on XP. 80533346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com */ 80633346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com DWORD result = GetGlyphIndicesW(fDDC, utf16, 1, &index, GGI_MARK_NONEXISTING_GLYPHS); 80733346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com if (result == GDI_ERROR 80833346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com || 0xFFFF == index 8094732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com || (0x1F == index && 8104732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com (fType == SkScalerContext_GDI::kBitmap_Type || 8114732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com fType == SkScalerContext_GDI::kLine_Type) 8124732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com /*&& winVer < Vista */) 8134732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com ) 81433346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com { 81533346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com index = 0; 81633346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com } 817ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 818ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Use uniscribe to detemine glyph index for non-BMP characters. 81927f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com static const int numWCHAR = 2; 82027f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com static const int maxItems = 2; 82196fcdcc219d2a0d3579719b84b28bede76efba64halcanary // MSDN states that this can be nullptr, but some things don't work then. 82227f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com SCRIPT_CONTROL sc = { 0 }; 82327f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com // Add extra item to SCRIPT_ITEM to work around a bug (now documented). 82427f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com // https://bugzilla.mozilla.org/show_bug.cgi?id=366643 82527f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com SCRIPT_ITEM si[maxItems + 1]; 82627f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com int numItems; 82796fcdcc219d2a0d3579719b84b28bede76efba64halcanary HRZM(ScriptItemize(utf16, numWCHAR, maxItems, &sc, nullptr, si, &numItems), 82827f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com "Could not itemize character."); 82927f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com 83027f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com // Sometimes ScriptShape cannot find a glyph for a non-BMP and returns 2 space glyphs. 83127f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com static const int maxGlyphs = 2; 83227f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com SCRIPT_VISATTR vsa[maxGlyphs]; 83327f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com WORD outGlyphs[maxGlyphs]; 83427f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com WORD logClust[numWCHAR]; 83527f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com int numGlyphs; 83627f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com HRZM(ScriptShape(fDDC, &fSC, utf16, numWCHAR, maxGlyphs, &si[0].a, 83727f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com outGlyphs, logClust, vsa, &numGlyphs), 83827f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com "Could not shape character."); 83927f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com if (1 == numGlyphs) { 84027f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com index = outGlyphs[0]; 84127f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com } 842ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 843ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return index; 844ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 845ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 84630ddd615c447fed73286151b463af20d309c85f1reed@google.comvoid SkScalerContext_GDI::generateAdvance(SkGlyph* glyph) { 847ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com this->generateMetrics(glyph); 848ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 849ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 85030ddd615c447fed73286151b463af20d309c85f1reed@google.comvoid SkScalerContext_GDI::generateMetrics(SkGlyph* glyph) { 851ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(fDDC); 852ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 8534732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com if (fType == SkScalerContext_GDI::kBitmap_Type || fType == SkScalerContext_GDI::kLine_Type) { 854a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com SIZE size; 8551b27704eba15be4e9d1997faac42038493a30be5djsollen WORD glyphs = glyph->getGlyphID(); 856a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (0 == GetTextExtentPointI(fDDC, &glyphs, 1, &size)) { 857a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fWidth = SkToS16(fTM.tmMaxCharWidth); 858a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } else { 859a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fWidth = SkToS16(size.cx); 860a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 861a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fHeight = SkToS16(size.cy); 862a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 863a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fTop = SkToS16(-fTM.tmAscent); 8644732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com // Bitmap FON cannot underhang, but vector FON may. 8654732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com // There appears no means of determining underhang of vector FON. 866a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fLeft = SkToS16(0); 8676b3eacb0dfaeb3374d410c8c041bd39cd066e1eabenjaminwagner glyph->fAdvanceX = glyph->fWidth; 868a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fAdvanceY = 0; 869a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 8704732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com // Vector FON will transform nicely, but bitmap FON do not. 8714732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com if (fType == SkScalerContext_GDI::kLine_Type) { 8724732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com SkRect bounds = SkRect::MakeXYWH(glyph->fLeft, glyph->fTop, 8734732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com glyph->fWidth, glyph->fHeight); 8744732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com SkMatrix m; 8754732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com m.setAll(SkFIXEDToScalar(fMat22.eM11), -SkFIXEDToScalar(fMat22.eM21), 0, 8764732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com -SkFIXEDToScalar(fMat22.eM12), SkFIXEDToScalar(fMat22.eM22), 0, 8773f43f8ab9cd3ba0ea83f5ae0659c21f101dfca7areed 0, 0, 1); 8784732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com m.mapRect(&bounds); 879d02cf2664d0e453a6ec57cddc7f09bfc07fd91dbreed bounds.roundOut(&bounds); 8804732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com glyph->fLeft = SkScalarTruncToInt(bounds.fLeft); 8814732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com glyph->fTop = SkScalarTruncToInt(bounds.fTop); 8824732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com glyph->fWidth = SkScalarTruncToInt(bounds.width()); 8834732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com glyph->fHeight = SkScalarTruncToInt(bounds.height()); 8844732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com } 8854732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com 886d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // Apply matrix to advance. 8876b3eacb0dfaeb3374d410c8c041bd39cd066e1eabenjaminwagner glyph->fAdvanceY = -FIXED2float(fMat22.eM12) * glyph->fAdvanceX; 8886b3eacb0dfaeb3374d410c8c041bd39cd066e1eabenjaminwagner glyph->fAdvanceX *= FIXED2float(fMat22.eM11); 889a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 890a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com return; 891a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 892a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 8931b27704eba15be4e9d1997faac42038493a30be5djsollen UINT glyphId = glyph->getGlyphID(); 894d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com 895ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com GLYPHMETRICS gm; 8961dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com sk_bzero(&gm, sizeof(gm)); 897ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 89896fcdcc219d2a0d3579719b84b28bede76efba64halcanary DWORD status = GetGlyphOutlineW(fDDC, glyphId, GGO_METRICS | GGO_GLYPH_INDEX, &gm, 0, nullptr, &fMat22); 899d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (GDI_ERROR == status) { 900055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com LogFontTypeface::EnsureAccessible(this->getTypeface()); 90196fcdcc219d2a0d3579719b84b28bede76efba64halcanary status = GetGlyphOutlineW(fDDC, glyphId, GGO_METRICS | GGO_GLYPH_INDEX, &gm, 0, nullptr, &fMat22); 902d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (GDI_ERROR == status) { 903d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->zeroMetrics(); 904d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com return; 905d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 90639698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 907ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 908d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com bool empty = false; 909d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // The black box is either the embedded bitmap size or the outline extent. 910d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // It is 1x1 if nothing is to be drawn, but will also be 1x1 if something very small 911d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // is to be drawn, like a '.'. We need to outset '.' but do not wish to outset ' '. 912d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (1 == gm.gmBlackBoxX && 1 == gm.gmBlackBoxY) { 913d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // If GetGlyphOutline with GGO_NATIVE returns 0, we know there was no outline. 91496fcdcc219d2a0d3579719b84b28bede76efba64halcanary DWORD bufferSize = GetGlyphOutlineW(fDDC, glyphId, GGO_NATIVE | GGO_GLYPH_INDEX, &gm, 0, nullptr, &fMat22); 915d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com empty = (0 == bufferSize); 916d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 9171dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 918d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fTop = SkToS16(-gm.gmptGlyphOrigin.y); 919d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fLeft = SkToS16(gm.gmptGlyphOrigin.x); 920d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (empty) { 921d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fWidth = 0; 922d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fHeight = 0; 923ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 924d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // Outset, since the image may bleed out of the black box. 925d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // For embedded bitmaps the black box should be exact. 926d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // For outlines we need to outset by 1 in all directions for bleed. 927d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // For ClearType we need to outset by 2 for bleed. 928d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fWidth = gm.gmBlackBoxX + 4; 929d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fHeight = gm.gmBlackBoxY + 4; 930d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fTop -= 2; 931d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fLeft -= 2; 932d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 9336b3eacb0dfaeb3374d410c8c041bd39cd066e1eabenjaminwagner // TODO(benjaminwagner): What is the type of gm.gmCellInc[XY]? 9346b3eacb0dfaeb3374d410c8c041bd39cd066e1eabenjaminwagner glyph->fAdvanceX = (float)((int)gm.gmCellIncX); 9356b3eacb0dfaeb3374d410c8c041bd39cd066e1eabenjaminwagner glyph->fAdvanceY = (float)((int)gm.gmCellIncY); 936d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fRsbDelta = 0; 937d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fLsbDelta = 0; 938d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com 9396a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com if (this->isSubpixel()) { 940d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com sk_bzero(&gm, sizeof(gm)); 94196fcdcc219d2a0d3579719b84b28bede76efba64halcanary status = GetGlyphOutlineW(fDDC, glyphId, GGO_METRICS | GGO_GLYPH_INDEX, &gm, 0, nullptr, &fHighResMat22); 942d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (GDI_ERROR != status) { 943d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkPoint advance; 944d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fHiResMatrix.mapXY(SkIntToScalar(gm.gmCellIncX), SkIntToScalar(gm.gmCellIncY), &advance); 9456b3eacb0dfaeb3374d410c8c041bd39cd066e1eabenjaminwagner glyph->fAdvanceX = SkScalarToFloat(advance.fX); 9466b3eacb0dfaeb3374d410c8c041bd39cd066e1eabenjaminwagner glyph->fAdvanceY = SkScalarToFloat(advance.fY); 947d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 9480abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } else if (!isAxisAligned(this->fRec)) { 94996fcdcc219d2a0d3579719b84b28bede76efba64halcanary status = GetGlyphOutlineW(fDDC, glyphId, GGO_METRICS | GGO_GLYPH_INDEX, &gm, 0, nullptr, &fGsA); 9500abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (GDI_ERROR != status) { 9510abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkPoint advance; 9520abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fG_inv.mapXY(SkIntToScalar(gm.gmCellIncX), SkIntToScalar(gm.gmCellIncY), &advance); 9536b3eacb0dfaeb3374d410c8c041bd39cd066e1eabenjaminwagner glyph->fAdvanceX = SkScalarToFloat(advance.fX); 9546b3eacb0dfaeb3374d410c8c041bd39cd066e1eabenjaminwagner glyph->fAdvanceY = SkScalarToFloat(advance.fY); 9550abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 956ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 957ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 958ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 9596a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.comstatic const MAT2 gMat2Identity = {{0, 1}, {0, 0}, {0, 0}, {0, 1}}; 960410780677af260e32948b02c0725ef6ad761260cbungemanvoid SkScalerContext_GDI::generateFontMetrics(SkPaint::FontMetrics* metrics) { 96196fcdcc219d2a0d3579719b84b28bede76efba64halcanary if (nullptr == metrics) { 962410780677af260e32948b02c0725ef6ad761260cbungeman return; 96360af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com } 964410780677af260e32948b02c0725ef6ad761260cbungeman sk_bzero(metrics, sizeof(*metrics)); 965ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 966ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(fDDC); 967ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 968e9d831957602e3fa46fc4b609ae6d2da46654915bungeman@google.com#ifndef SK_GDI_ALWAYS_USE_TEXTMETRICS_FOR_FONT_METRICS 9694732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com if (fType == SkScalerContext_GDI::kBitmap_Type || fType == SkScalerContext_GDI::kLine_Type) { 970e9d831957602e3fa46fc4b609ae6d2da46654915bungeman@google.com#endif 971410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fTop = SkIntToScalar(-fTM.tmAscent); 972410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fAscent = SkIntToScalar(-fTM.tmAscent); 973410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fDescent = SkIntToScalar(fTM.tmDescent); 974410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fBottom = SkIntToScalar(fTM.tmDescent); 975410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fLeading = SkIntToScalar(fTM.tmExternalLeading); 976410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fAvgCharWidth = SkIntToScalar(fTM.tmAveCharWidth); 977410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fMaxCharWidth = SkIntToScalar(fTM.tmMaxCharWidth); 978410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fXMin = 0; 979410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fXMax = metrics->fMaxCharWidth; 980410780677af260e32948b02c0725ef6ad761260cbungeman //metrics->fXHeight = 0; 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 997e9d831957602e3fa46fc4b609ae6d2da46654915bungeman@google.com#ifndef SK_GDI_ALWAYS_USE_TEXTMETRICS_FOR_FONT_METRICS 998410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fTop = SkIntToScalar(-otm.otmrcFontBox.top); 999410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fAscent = SkIntToScalar(-otm.otmAscent); 1000410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fDescent = SkIntToScalar(-otm.otmDescent); 1001410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fBottom = SkIntToScalar(-otm.otmrcFontBox.bottom); 1002410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fLeading = SkIntToScalar(otm.otmLineGap); 1003410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fAvgCharWidth = SkIntToScalar(otm.otmTextMetrics.tmAveCharWidth); 1004410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fMaxCharWidth = SkIntToScalar(otm.otmTextMetrics.tmMaxCharWidth); 1005410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fXMin = SkIntToScalar(otm.otmrcFontBox.left); 1006410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fXMax = SkIntToScalar(otm.otmrcFontBox.right); 1007d3031aa5ae90b796593a04c0da062024198e4769commit-bot@chromium.org#endif 1008410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fUnderlineThickness = SkIntToScalar(otm.otmsUnderscoreSize); 1009410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fUnderlinePosition = -SkIntToScalar(otm.otmsUnderscorePosition); 10104a867a6356e05a09186a16c1c8ffc3f2cafbbe59bungeman@google.com 10113318da5d1aa19533dd034f90d4bc29a2d2e86b66Ben Wagner metrics->fFlags |= SkPaint::FontMetrics::kUnderlineThicknessIsValid_Flag; 1012410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fFlags |= SkPaint::FontMetrics::kUnderlinePositionIsValid_Flag; 10130abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 1014410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fXHeight = SkIntToScalar(otm.otmsXHeight); 1015410780677af260e32948b02c0725ef6ad761260cbungeman GLYPHMETRICS gm; 1016410780677af260e32948b02c0725ef6ad761260cbungeman sk_bzero(&gm, sizeof(gm)); 1017410780677af260e32948b02c0725ef6ad761260cbungeman DWORD len = GetGlyphOutlineW(fDDC, 'x', GGO_METRICS, &gm, 0, 0, &gMat2Identity); 1018410780677af260e32948b02c0725ef6ad761260cbungeman if (len != GDI_ERROR && gm.gmBlackBoxY > 0) { 1019410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fXHeight = SkIntToScalar(gm.gmBlackBoxY); 1020ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1021ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1022ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 10237430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com//////////////////////////////////////////////////////////////////////////////////////// 10247430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com 10250abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#define SK_SHOW_TEXT_BLIT_COVERAGE 0 10260abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 10277430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.comstatic void build_power_table(uint8_t table[], float ee) { 10287430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com for (int i = 0; i < 256; i++) { 10297430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com float x = i / 255.f; 103097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com x = sk_float_pow(x, ee); 1031e1ca705cac4b946993f6cbf798e2a0ba27e739f3reed@google.com int xx = SkScalarRoundToInt(x * 255); 10327430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com table[i] = SkToU8(xx); 10337430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com } 10347430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com} 10357430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com 103697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com/** 103797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * This will invert the gamma applied by GDI (gray-scale antialiased), so we 103897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * can get linear values. 103997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * 104097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * GDI grayscale appears to use a hard-coded gamma of 2.3. 104197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * 104297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * GDI grayscale appears to draw using the black and white rasterizer at four 104397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * times the size and then downsamples to compute the coverage mask. As a 104497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * result there are only seventeen total grays. This lack of fidelity means 104597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * that shifting into other color spaces is imprecise. 104697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com */ 104797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic const uint8_t* getInverseGammaTableGDI() { 104805a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Since build_power_table is idempotent, many threads can build gTableGdi 104905a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // simultaneously. 105005a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com 105105a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Microsoft Specific: 105205a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Making gInited volatile provides read-aquire and write-release in vc++. 105305a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // In VS2012, see compiler option /volatile:(ms|iso). 105405a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Replace with C++11 atomics when possible. 105505a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com static volatile bool gInited; 105697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com static uint8_t gTableGdi[256]; 105705a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com if (gInited) { 105805a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Need a L/L (read) barrier (full acquire not needed). If gInited is observed 105905a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // true then gTableGdi is observable, but it must be requested. 106005a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com } else { 106197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com build_power_table(gTableGdi, 2.3f); 106205a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Need a S/S (write) barrier (full release not needed) here so that this 106305a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // write to gInited becomes observable after gTableGdi. 106497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com gInited = true; 106597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } 106697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com return gTableGdi; 106797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com} 106897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com 106997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com/** 107097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * This will invert the gamma applied by GDI ClearType, so we can get linear 107197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * values. 107297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * 107397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * GDI ClearType uses SPI_GETFONTSMOOTHINGCONTRAST / 1000 as the gamma value. 107497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * If this value is not specified, the default is a gamma of 1.4. 107597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com */ 107697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic const uint8_t* getInverseGammaTableClearType() { 107705a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // We don't expect SPI_GETFONTSMOOTHINGCONTRAST to ever change, so building 107805a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // gTableClearType with build_power_table is effectively idempotent. 107905a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com 108005a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Microsoft Specific: 108105a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Making gInited volatile provides read-aquire and write-release in vc++. 108205a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // In VS2012, see compiler option /volatile:(ms|iso). 108305a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Replace with C++11 atomics when possible. 108405a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com static volatile bool gInited; 108597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com static uint8_t gTableClearType[256]; 108605a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com if (gInited) { 108705a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Need a L/L (read) barrier (acquire not needed). If gInited is observed 108805a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // true then gTableClearType is observable, but it must be requested. 108905a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com } else { 10907430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com UINT level = 0; 10917430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com if (!SystemParametersInfo(SPI_GETFONTSMOOTHINGCONTRAST, 0, &level, 0) || !level) { 10927430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com // can't get the data, so use a default 10937430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com level = 1400; 10947430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com } 109597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com build_power_table(gTableClearType, level / 1000.0f); 109605a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Need a S/S (write) barrier (release not needed) here so that this 109705a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // write to gInited becomes observable after gTableClearType. 10987430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com gInited = true; 10997430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com } 110097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com return gTableClearType; 11017430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com} 11027430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com 1103a4083c97d48e8a4f88e2797d7363f141e3d42553Cary Clark#include "SkColorData.h" 1104ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 11056385314686875ecb484d95b33fcbf08890b5144dbungeman@google.com//Cannot assume that the input rgb is gray due to possible setting of kGenA8FromLCD_Flag. 110697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 110797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic inline uint8_t rgb_to_a8(SkGdiRGB rgb, const uint8_t* table8) { 11086385314686875ecb484d95b33fcbf08890b5144dbungeman@google.com U8CPU r = (rgb >> 16) & 0xFF; 11096385314686875ecb484d95b33fcbf08890b5144dbungeman@google.com U8CPU g = (rgb >> 8) & 0xFF; 11106385314686875ecb484d95b33fcbf08890b5144dbungeman@google.com U8CPU b = (rgb >> 0) & 0xFF; 11111bfe01d06b896eca94c80d9af9a6bb30216b5e42bungeman@google.com return sk_apply_lut_if<APPLY_PREBLEND>(SkComputeLuminance(r, g, b), table8); 111282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com} 111382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 111497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 111597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic inline uint16_t rgb_to_lcd16(SkGdiRGB rgb, const uint8_t* tableR, 111697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableG, 111797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableB) { 111897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU r = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 16) & 0xFF, tableR); 111997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU g = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 8) & 0xFF, tableG); 112097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU b = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 0) & 0xFF, tableB); 11210abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#if SK_SHOW_TEXT_BLIT_COVERAGE 11220abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com r = SkMax32(r, 10); g = SkMax32(g, 10); b = SkMax32(b, 10); 11230abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#endif 112497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com return SkPack888ToRGB16(r, g, b); 1125ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1126ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 112782cff020b7e055f2d01686f060a884df842306edreed@google.com// Is this GDI color neither black nor white? If so, we have to keep this 112882cff020b7e055f2d01686f060a884df842306edreed@google.com// image as is, rather than smashing it down to a BW mask. 112982cff020b7e055f2d01686f060a884df842306edreed@google.com// 113082cff020b7e055f2d01686f060a884df842306edreed@google.com// returns int instead of bool, since we don't want/have to pay to convert 113182cff020b7e055f2d01686f060a884df842306edreed@google.com// the zero/non-zero value into a bool 113282cff020b7e055f2d01686f060a884df842306edreed@google.comstatic int is_not_black_or_white(SkGdiRGB c) { 113382cff020b7e055f2d01686f060a884df842306edreed@google.com // same as (but faster than) 113482cff020b7e055f2d01686f060a884df842306edreed@google.com // c &= 0x00FFFFFF; 113582cff020b7e055f2d01686f060a884df842306edreed@google.com // return 0 == c || 0x00FFFFFF == c; 113682cff020b7e055f2d01686f060a884df842306edreed@google.com return (c + (c & 1)) & 0x00FFFFFF; 11375e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 11385e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 11394b18f5767ab1df7fedf0ff2e3a9eac7f7c500c36bungeman@google.comstatic bool is_rgb_really_bw(const SkGdiRGB* src, int width, int height, size_t srcRB) { 11405e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int y = 0; y < height; ++y) { 11415e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int x = 0; x < width; ++x) { 114282cff020b7e055f2d01686f060a884df842306edreed@google.com if (is_not_black_or_white(src[x])) { 11435e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com return false; 11445e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 11455e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 114605a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com src = SkTAddOffset<const SkGdiRGB>(src, srcRB); 11475e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 11485e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com return true; 11495e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 11505e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 115197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com// gdi's bitmap is upside-down, so we reverse dst walking in Y 115297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com// whenever we copy it into skia's buffer 11535e2df64215f12660ab26b96816f40ad8e32bf16freed@google.comstatic void rgb_to_bw(const SkGdiRGB* SK_RESTRICT src, size_t srcRB, 115497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const SkGlyph& glyph) { 11555e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const int width = glyph.fWidth; 11565e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const size_t dstRB = (width + 7) >> 3; 11575e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com uint8_t* SK_RESTRICT dst = (uint8_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 11585e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 11595e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com int byteCount = width >> 3; 11605e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com int bitCount = width & 7; 11615e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 11625e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com // adjust srcRB to skip the values in our byteCount loop, 11635e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com // since we increment src locally there 11645e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com srcRB -= byteCount * 8 * sizeof(SkGdiRGB); 11655e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 11665e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int y = 0; y < glyph.fHeight; ++y) { 11675e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com if (byteCount > 0) { 11685e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int i = 0; i < byteCount; ++i) { 11697a230142e01c5a8cf955be12a5f287589b551634reed@google.com unsigned byte = 0; 117097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[0] & (1 << 7); 117197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[1] & (1 << 6); 117297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[2] & (1 << 5); 117397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[3] & (1 << 4); 117497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[4] & (1 << 3); 117597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[5] & (1 << 2); 117697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[6] & (1 << 1); 117797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[7] & (1 << 0); 11786a8f14d9633b330fb8051581828a0aaf4403d1a9reed@google.com dst[i] = byte; 11795e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com src += 8; 11805e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 11815e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 11825e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com if (bitCount > 0) { 11835e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com unsigned byte = 0; 11845e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com unsigned mask = 0x80; 11855e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int i = 0; i < bitCount; i++) { 118697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[i] & mask; 11875e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com mask >>= 1; 11885e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 11895e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com dst[byteCount] = byte; 11905e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 119105a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com src = SkTAddOffset<const SkGdiRGB>(src, srcRB); 11925e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com dst -= dstRB; 11935e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 11940abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#if SK_SHOW_TEXT_BLIT_COVERAGE 11950abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (glyph.fWidth > 0 && glyph.fHeight > 0) { 11960abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com uint8_t* first = (uint8_t*)glyph.fImage; 11970abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com uint8_t* last = (uint8_t*)((char*)glyph.fImage + glyph.fHeight * dstRB - 1); 11980abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com *first |= 1 << 7; 11990abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com *last |= bitCount == 0 ? 1 : 1 << (8 - bitCount); 12000abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 12010abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#endif 12025e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 12035e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 120497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 12055e2df64215f12660ab26b96816f40ad8e32bf16freed@google.comstatic void rgb_to_a8(const SkGdiRGB* SK_RESTRICT src, size_t srcRB, 120697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const SkGlyph& glyph, const uint8_t* table8) { 12075e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const size_t dstRB = glyph.rowBytes(); 12085e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const int width = glyph.fWidth; 12095e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com uint8_t* SK_RESTRICT dst = (uint8_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 12105e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 12115e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int y = 0; y < glyph.fHeight; y++) { 12125e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int i = 0; i < width; i++) { 121397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com dst[i] = rgb_to_a8<APPLY_PREBLEND>(src[i], table8); 12140abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#if SK_SHOW_TEXT_BLIT_COVERAGE 12150abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com dst[i] = SkMax32(dst[i], 10); 12160abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#endif 12175e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 121805a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com src = SkTAddOffset<const SkGdiRGB>(src, srcRB); 12195e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com dst -= dstRB; 12205e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 12215e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 12225e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 122397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 122497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic void rgb_to_lcd16(const SkGdiRGB* SK_RESTRICT src, size_t srcRB, const SkGlyph& glyph, 122597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableR, const uint8_t* tableG, const uint8_t* tableB) { 12265e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const size_t dstRB = glyph.rowBytes(); 12275e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const int width = glyph.fWidth; 12285e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com uint16_t* SK_RESTRICT dst = (uint16_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 12295e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 12305e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int y = 0; y < glyph.fHeight; y++) { 12315e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int i = 0; i < width; i++) { 123297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com dst[i] = rgb_to_lcd16<APPLY_PREBLEND>(src[i], tableR, tableG, tableB); 12335e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 123405a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com src = SkTAddOffset<const SkGdiRGB>(src, srcRB); 12355e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com dst = (uint16_t*)((char*)dst - dstRB); 12365e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 12375e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 12385e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 123930ddd615c447fed73286151b463af20d309c85f1reed@google.comvoid SkScalerContext_GDI::generateImage(const SkGlyph& glyph) { 1240ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(fDDC); 1241ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 12426271117d826098c1399cf7442f8eea2d665cb78areed@google.com const bool isBW = SkMask::kBW_Format == fRec.fMaskFormat; 124382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com const bool isAA = !isLCD(fRec); 124482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 124599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com size_t srcRB; 124697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const void* bits = fOffscreen.draw(glyph, isBW, &srcRB); 124796fcdcc219d2a0d3579719b84b28bede76efba64halcanary if (nullptr == bits) { 1248055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com LogFontTypeface::EnsureAccessible(this->getTypeface()); 124997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com bits = fOffscreen.draw(glyph, isBW, &srcRB); 125096fcdcc219d2a0d3579719b84b28bede76efba64halcanary if (nullptr == bits) { 125139698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com sk_bzero(glyph.fImage, glyph.computeImageSize()); 125239698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com return; 125339698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 125482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com } 125582a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 125697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com if (!isBW) { 12571bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com const uint8_t* table; 12581bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com //The offscreen contains a GDI blit if isAA and kGenA8FromLCD_Flag is not set. 12591bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com //Otherwise the offscreen contains a ClearType blit. 12601bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com if (isAA && !(fRec.fFlags & SkScalerContext::kGenA8FromLCD_Flag)) { 12611bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com table = getInverseGammaTableGDI(); 12621bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com } else { 12631bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com table = getInverseGammaTableClearType(); 126497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } 126597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //Note that the following cannot really be integrated into the 126697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //pre-blend, since we may not be applying the pre-blend; when we aren't 126797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //applying the pre-blend it means that a filter wants linear anyway. 126897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //Other code may also be applying the pre-blend, so we'd need another 126997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //one with this and one without. 12706f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com SkGdiRGB* addr = (SkGdiRGB*)bits; 12716f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com for (int y = 0; y < glyph.fHeight; ++y) { 12726f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com for (int x = 0; x < glyph.fWidth; ++x) { 12736f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com int r = (addr[x] >> 16) & 0xFF; 12746f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com int g = (addr[x] >> 8) & 0xFF; 12756f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com int b = (addr[x] >> 0) & 0xFF; 12767430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com addr[x] = (table[r] << 16) | (table[g] << 8) | table[b]; 12776f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com } 127805a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com addr = SkTAddOffset<SkGdiRGB>(addr, srcRB); 12796f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com } 12806f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com } 12816f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com 128282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com int width = glyph.fWidth; 128382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com size_t dstRB = glyph.rowBytes(); 128482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com if (isBW) { 128582a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com const uint8_t* src = (const uint8_t*)bits; 128682a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com uint8_t* dst = (uint8_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 128782a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com for (int y = 0; y < glyph.fHeight; y++) { 128882a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com memcpy(dst, src, dstRB); 128982a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com src += srcRB; 129082a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com dst -= dstRB; 1291ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 12920abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#if SK_SHOW_TEXT_BLIT_COVERAGE 12930abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (glyph.fWidth > 0 && glyph.fHeight > 0) { 12940abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com int bitCount = width & 7; 12950abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com uint8_t* first = (uint8_t*)glyph.fImage; 12960abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com uint8_t* last = (uint8_t*)((char*)glyph.fImage + glyph.fHeight * dstRB - 1); 12970abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com *first |= 1 << 7; 12980abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com *last |= bitCount == 0 ? 1 : 1 << (8 - bitCount); 12990abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 13000abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#endif 130182a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com } else if (isAA) { 13026f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com // since the caller may require A8 for maskfilters, we can't check for BW 13036f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com // ... until we have the caller tell us that explicitly 13045e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const SkGdiRGB* src = (const SkGdiRGB*)bits; 1305a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com if (fPreBlend.isApplicable()) { 1306a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com rgb_to_a8<true>(src, srcRB, glyph, fPreBlend.fG); 130797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } else { 1308a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com rgb_to_a8<false>(src, srcRB, glyph, fPreBlend.fG); 130997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } 131082a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com } else { // LCD16 13115e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const SkGdiRGB* src = (const SkGdiRGB*)bits; 13125e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com if (is_rgb_really_bw(src, width, glyph.fHeight, srcRB)) { 131397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com rgb_to_bw(src, srcRB, glyph); 13145e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com ((SkGlyph*)&glyph)->fMaskFormat = SkMask::kBW_Format; 13155e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } else { 1316d54d3fc82456f8789b3e4dff40faeb7b670bcf4breed SkASSERT(SkMask::kLCD16_Format == glyph.fMaskFormat); 1317d54d3fc82456f8789b3e4dff40faeb7b670bcf4breed if (fPreBlend.isApplicable()) { 1318d54d3fc82456f8789b3e4dff40faeb7b670bcf4breed rgb_to_lcd16<true>(src, srcRB, glyph, 1319d54d3fc82456f8789b3e4dff40faeb7b670bcf4breed fPreBlend.fR, fPreBlend.fG, fPreBlend.fB); 1320754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } else { 1321d54d3fc82456f8789b3e4dff40faeb7b670bcf4breed rgb_to_lcd16<false>(src, srcRB, glyph, 1322d54d3fc82456f8789b3e4dff40faeb7b670bcf4breed fPreBlend.fR, fPreBlend.fG, fPreBlend.fB); 1323754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } 1324ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1325ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1326ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1327ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 13280abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.comclass GDIGlyphbufferPointIter { 13290abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.compublic: 133027e21fe577211c1c40cbf40d0385b02c69d04522skia.committer@gmail.com GDIGlyphbufferPointIter(const uint8_t* glyphbuf, DWORD total_size) 13310abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com : fHeaderIter(glyphbuf, total_size), fCurveIter(), fPointIter() 13320abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com { } 13330abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 1334dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com POINTFX const * next() { 13350abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.comnextHeader: 13360abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (!fCurveIter.isSet()) { 13370abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYGONHEADER* header = fHeaderIter.next(); 133896fcdcc219d2a0d3579719b84b28bede76efba64halcanary if (nullptr == header) { 133996fcdcc219d2a0d3579719b84b28bede76efba64halcanary return nullptr; 1340dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com } 13410abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fCurveIter.set(header); 13420abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYCURVE* curve = fCurveIter.next(); 134396fcdcc219d2a0d3579719b84b28bede76efba64halcanary if (nullptr == curve) { 134496fcdcc219d2a0d3579719b84b28bede76efba64halcanary return nullptr; 1345dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com } 13460abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fPointIter.set(curve); 1347dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com return &header->pfxStart; 13480abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 1349ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 13500abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const POINTFX* nextPoint = fPointIter.next(); 135196fcdcc219d2a0d3579719b84b28bede76efba64halcanary if (nullptr == nextPoint) { 13520abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYCURVE* curve = fCurveIter.next(); 135396fcdcc219d2a0d3579719b84b28bede76efba64halcanary if (nullptr == curve) { 13540abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fCurveIter.set(); 13550abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com goto nextHeader; 13560abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } else { 13570abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fPointIter.set(curve); 13580abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 13590abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com nextPoint = fPointIter.next(); 13600abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 1361dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com return nextPoint; 13620abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 1363ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 13640abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com WORD currentCurveType() { 13650abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return fPointIter.fCurveType; 13660abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 136705a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com 13680abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.comprivate: 13690abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com /** Iterates over all of the polygon headers in a glyphbuf. */ 13700abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com class GDIPolygonHeaderIter { 13710abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com public: 137227e21fe577211c1c40cbf40d0385b02c69d04522skia.committer@gmail.com GDIPolygonHeaderIter(const uint8_t* glyphbuf, DWORD total_size) 13730abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com : fCurPolygon(reinterpret_cast<const TTPOLYGONHEADER*>(glyphbuf)) 13740abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com , fEndPolygon(SkTAddOffset<const TTPOLYGONHEADER>(glyphbuf, total_size)) 13750abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com { } 13760abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 13770abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYGONHEADER* next() { 13780abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (fCurPolygon >= fEndPolygon) { 137996fcdcc219d2a0d3579719b84b28bede76efba64halcanary return nullptr; 13800abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 13810abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYGONHEADER* thisPolygon = fCurPolygon; 13820abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fCurPolygon = SkTAddOffset<const TTPOLYGONHEADER>(fCurPolygon, fCurPolygon->cb); 13830abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return thisPolygon; 13840abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 13850abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com private: 13860abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYGONHEADER* fCurPolygon; 13870abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYGONHEADER* fEndPolygon; 13880abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com }; 138905a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com 13900abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com /** Iterates over all of the polygon curves in a polygon header. */ 13910abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com class GDIPolygonCurveIter { 13920abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com public: 139396fcdcc219d2a0d3579719b84b28bede76efba64halcanary GDIPolygonCurveIter() : fCurCurve(nullptr), fEndCurve(nullptr) { } 13940abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 13950abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GDIPolygonCurveIter(const TTPOLYGONHEADER* curPolygon) 13960abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com : fCurCurve(SkTAddOffset<const TTPOLYCURVE>(curPolygon, sizeof(TTPOLYGONHEADER))) 13970abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com , fEndCurve(SkTAddOffset<const TTPOLYCURVE>(curPolygon, curPolygon->cb)) 13980abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com { } 13990abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 140096fcdcc219d2a0d3579719b84b28bede76efba64halcanary bool isSet() { return fCurCurve != nullptr; } 14010abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 14020abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com void set(const TTPOLYGONHEADER* curPolygon) { 14030abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fCurCurve = SkTAddOffset<const TTPOLYCURVE>(curPolygon, sizeof(TTPOLYGONHEADER)); 14040abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fEndCurve = SkTAddOffset<const TTPOLYCURVE>(curPolygon, curPolygon->cb); 14050abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 14060abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com void set() { 140796fcdcc219d2a0d3579719b84b28bede76efba64halcanary fCurCurve = nullptr; 140896fcdcc219d2a0d3579719b84b28bede76efba64halcanary fEndCurve = nullptr; 14090abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 14100abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 14110abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYCURVE* next() { 14120abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (fCurCurve >= fEndCurve) { 141396fcdcc219d2a0d3579719b84b28bede76efba64halcanary return nullptr; 141405a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com } 14150abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYCURVE* thisCurve = fCurCurve; 14160abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fCurCurve = SkTAddOffset<const TTPOLYCURVE>(fCurCurve, size_of_TTPOLYCURVE(*fCurCurve)); 14170abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return thisCurve; 14180abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 14190abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com private: 14200abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com size_t size_of_TTPOLYCURVE(const TTPOLYCURVE& curve) { 14210abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return 2*sizeof(WORD) + curve.cpfx*sizeof(POINTFX); 142205a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com } 14230abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYCURVE* fCurCurve; 14240abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYCURVE* fEndCurve; 14250abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com }; 142605a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com 14270abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com /** Iterates over all of the polygon points in a polygon curve. */ 14280abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com class GDIPolygonCurvePointIter { 14290abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com public: 143096fcdcc219d2a0d3579719b84b28bede76efba64halcanary GDIPolygonCurvePointIter() : fCurveType(0), fCurPoint(nullptr), fEndPoint(nullptr) { } 143105a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com 14320abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GDIPolygonCurvePointIter(const TTPOLYCURVE* curPolygon) 14330abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com : fCurveType(curPolygon->wType) 14340abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com , fCurPoint(&curPolygon->apfx[0]) 14350abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com , fEndPoint(&curPolygon->apfx[curPolygon->cpfx]) 14360abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com { } 14370abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 143896fcdcc219d2a0d3579719b84b28bede76efba64halcanary bool isSet() { return fCurPoint != nullptr; } 14390abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 14400abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com void set(const TTPOLYCURVE* curPolygon) { 14410abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fCurveType = curPolygon->wType; 14420abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fCurPoint = &curPolygon->apfx[0]; 14430abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fEndPoint = &curPolygon->apfx[curPolygon->cpfx]; 14440abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 14450abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com void set() { 144696fcdcc219d2a0d3579719b84b28bede76efba64halcanary fCurPoint = nullptr; 144796fcdcc219d2a0d3579719b84b28bede76efba64halcanary fEndPoint = nullptr; 14480abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 14490abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 14500abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const POINTFX* next() { 14510abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (fCurPoint >= fEndPoint) { 145296fcdcc219d2a0d3579719b84b28bede76efba64halcanary return nullptr; 145305a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com } 14540abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const POINTFX* thisPoint = fCurPoint; 14550abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com ++fCurPoint; 14560abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return thisPoint; 1457d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 1458ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 14590abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com WORD fCurveType; 14600abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com private: 14610abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const POINTFX* fCurPoint; 14620abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const POINTFX* fEndPoint; 14630abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com }; 14640abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 14650abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GDIPolygonHeaderIter fHeaderIter; 14660abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GDIPolygonCurveIter fCurveIter; 14670abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GDIPolygonCurvePointIter fPointIter; 14680abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com}; 14690abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 14700abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.comstatic void sk_path_from_gdi_path(SkPath* path, const uint8_t* glyphbuf, DWORD total_size) { 1471d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const uint8_t* cur_glyph = glyphbuf; 1472d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const uint8_t* end_glyph = glyphbuf + total_size; 1473ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1474d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com while (cur_glyph < end_glyph) { 1475d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const TTPOLYGONHEADER* th = (TTPOLYGONHEADER*)cur_glyph; 1476ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1477d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const uint8_t* end_poly = cur_glyph + th->cb; 1478d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const uint8_t* cur_poly = cur_glyph + sizeof(TTPOLYGONHEADER); 1479ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1480d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com path->moveTo(SkFixedToScalar( SkFIXEDToFixed(th->pfxStart.x)), 1481d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(th->pfxStart.y))); 1482ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1483d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com while (cur_poly < end_poly) { 1484d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const TTPOLYCURVE* pc = (const TTPOLYCURVE*)cur_poly; 1485ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1486d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (pc->wType == TT_PRIM_LINE) { 1487d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com for (uint16_t i = 0; i < pc->cpfx; i++) { 1488d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com path->lineTo(SkFixedToScalar( SkFIXEDToFixed(pc->apfx[i].x)), 1489d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(pc->apfx[i].y))); 1490ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1491d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 1492ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1493d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (pc->wType == TT_PRIM_QSPLINE) { 1494d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com for (uint16_t u = 0; u < pc->cpfx - 1; u++) { // Walk through points in spline 1495d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com POINTFX pnt_b = pc->apfx[u]; // B is always the current point 1496d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com POINTFX pnt_c = pc->apfx[u+1]; 1497ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1498d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (u < pc->cpfx - 2) { // If not on last spline, compute C 1499d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com pnt_c.x = SkFixedToFIXED(SkFixedAve(SkFIXEDToFixed(pnt_b.x), 1500d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFIXEDToFixed(pnt_c.x))); 1501d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com pnt_c.y = SkFixedToFIXED(SkFixedAve(SkFIXEDToFixed(pnt_b.y), 1502d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFIXEDToFixed(pnt_c.y))); 1503ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1504d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com 1505d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com path->quadTo(SkFixedToScalar( SkFIXEDToFixed(pnt_b.x)), 1506d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(pnt_b.y)), 1507d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFixedToScalar( SkFIXEDToFixed(pnt_c.x)), 1508d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(pnt_c.y))); 1509ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1510ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1511d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // Advance past this TTPOLYCURVE. 1512d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com cur_poly += sizeof(WORD) * 2 + sizeof(POINTFX) * pc->cpfx; 1513ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1514d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com cur_glyph += th->cb; 1515d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com path->close(); 1516ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1517ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1518ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1519dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com#define move_next_expected_hinted_point(iter, pElem) do {\ 1520dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com pElem = iter.next(); \ 152196fcdcc219d2a0d3579719b84b28bede76efba64halcanary if (nullptr == pElem) return false; \ 1522dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com} while(0) 1523dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com 1524dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com// It is possible for the hinted and unhinted versions of the same path to have 1525dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com// a different number of points due to GDI's handling of flipped points. 1526dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com// If this is detected, this will return false. 1527dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.comstatic bool sk_path_from_gdi_paths(SkPath* path, const uint8_t* glyphbuf, DWORD total_size, 15280abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GDIGlyphbufferPointIter hintedYs) { 15290abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const uint8_t* cur_glyph = glyphbuf; 15300abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const uint8_t* end_glyph = glyphbuf + total_size; 15310abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 1532dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com POINTFX const * hintedPoint; 1533dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com 15340abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com while (cur_glyph < end_glyph) { 15350abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYGONHEADER* th = (TTPOLYGONHEADER*)cur_glyph; 15360abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 15370abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const uint8_t* end_poly = cur_glyph + th->cb; 15380abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const uint8_t* cur_poly = cur_glyph + sizeof(TTPOLYGONHEADER); 15390abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 1540dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com move_next_expected_hinted_point(hintedYs, hintedPoint); 15410abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com path->moveTo(SkFixedToScalar( SkFIXEDToFixed(th->pfxStart.x)), 1542dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(hintedPoint->y))); 15430abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 15440abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com while (cur_poly < end_poly) { 15450abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYCURVE* pc = (const TTPOLYCURVE*)cur_poly; 15460abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 15470abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (pc->wType == TT_PRIM_LINE) { 15480abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com for (uint16_t i = 0; i < pc->cpfx; i++) { 1549dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com move_next_expected_hinted_point(hintedYs, hintedPoint); 15500abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com path->lineTo(SkFixedToScalar( SkFIXEDToFixed(pc->apfx[i].x)), 1551dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(hintedPoint->y))); 15520abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 15530abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 15540abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 15550abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (pc->wType == TT_PRIM_QSPLINE) { 15560abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com POINTFX currentPoint = pc->apfx[0]; 1557dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com move_next_expected_hinted_point(hintedYs, hintedPoint); 15580abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // only take the hinted y if it wasn't flipped 15590abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (hintedYs.currentCurveType() == TT_PRIM_QSPLINE) { 1560dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com currentPoint.y = hintedPoint->y; 15610abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 15620abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com for (uint16_t u = 0; u < pc->cpfx - 1; u++) { // Walk through points in spline 15630abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com POINTFX pnt_b = currentPoint;//pc->apfx[u]; // B is always the current point 15640abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com POINTFX pnt_c = pc->apfx[u+1]; 1565dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com move_next_expected_hinted_point(hintedYs, hintedPoint); 15660abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // only take the hinted y if it wasn't flipped 15670abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (hintedYs.currentCurveType() == TT_PRIM_QSPLINE) { 1568dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com pnt_c.y = hintedPoint->y; 15690abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 15700abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com currentPoint.x = pnt_c.x; 15710abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com currentPoint.y = pnt_c.y; 15720abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 15730abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (u < pc->cpfx - 2) { // If not on last spline, compute C 15740abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com pnt_c.x = SkFixedToFIXED(SkFixedAve(SkFIXEDToFixed(pnt_b.x), 15750abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkFIXEDToFixed(pnt_c.x))); 15760abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com pnt_c.y = SkFixedToFIXED(SkFixedAve(SkFIXEDToFixed(pnt_b.y), 15770abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkFIXEDToFixed(pnt_c.y))); 15780abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 15790abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 15800abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com path->quadTo(SkFixedToScalar( SkFIXEDToFixed(pnt_b.x)), 15810abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(pnt_b.y)), 15820abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkFixedToScalar( SkFIXEDToFixed(pnt_c.x)), 15830abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(pnt_c.y))); 15840abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 15850abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 15860abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // Advance past this TTPOLYCURVE. 15870abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com cur_poly += sizeof(WORD) * 2 + sizeof(POINTFX) * pc->cpfx; 15880abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 15890abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com cur_glyph += th->cb; 15900abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com path->close(); 15910abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 1592dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com return true; 15930abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com} 15940abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 15956e9ac12495f3b64b6ea8860bb9f99c43cd33aa08Ben WagnerDWORD SkScalerContext_GDI::getGDIGlyphPath(SkGlyphID glyph, UINT flags, 15966e9ac12495f3b64b6ea8860bb9f99c43cd33aa08Ben Wagner SkAutoSTMalloc<BUFFERSIZE, uint8_t>* glyphbuf) 15970abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com{ 15980abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GLYPHMETRICS gm; 15990abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 16006e9ac12495f3b64b6ea8860bb9f99c43cd33aa08Ben Wagner DWORD total_size = GetGlyphOutlineW(fDDC, glyph, flags, &gm, BUFFERSIZE, glyphbuf->get(), &fMat22); 16010abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // Sometimes GetGlyphOutlineW returns a number larger than BUFFERSIZE even if BUFFERSIZE > 0. 16020abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // It has been verified that this does not involve a buffer overrun. 16030abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (GDI_ERROR == total_size || total_size > BUFFERSIZE) { 16040abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // GDI_ERROR because the BUFFERSIZE was too small, or because the data was not accessible. 16050abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // When the data is not accessable GetGlyphOutlineW fails rather quickly, 16060abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // so just try to get the size. If that fails then ensure the data is accessible. 16076e9ac12495f3b64b6ea8860bb9f99c43cd33aa08Ben Wagner total_size = GetGlyphOutlineW(fDDC, glyph, flags, &gm, 0, nullptr, &fMat22); 16080abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (GDI_ERROR == total_size) { 16090abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com LogFontTypeface::EnsureAccessible(this->getTypeface()); 16106e9ac12495f3b64b6ea8860bb9f99c43cd33aa08Ben Wagner total_size = GetGlyphOutlineW(fDDC, glyph, flags, &gm, 0, nullptr, &fMat22); 16110abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (GDI_ERROR == total_size) { 1612c6cb56f36c4aad8ed45486a3bb4de614bb822f1bkkinnunen // GetGlyphOutlineW is known to fail for some characters, such as spaces. 1613c6cb56f36c4aad8ed45486a3bb4de614bb822f1bkkinnunen // In these cases, just return that the glyph does not have a shape. 16140abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return 0; 16150abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16160abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16170abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 16180abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com glyphbuf->reset(total_size); 16190abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 16206e9ac12495f3b64b6ea8860bb9f99c43cd33aa08Ben Wagner DWORD ret = GetGlyphOutlineW(fDDC, glyph, flags, &gm, total_size, glyphbuf->get(), &fMat22); 16210abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (GDI_ERROR == ret) { 16220abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com LogFontTypeface::EnsureAccessible(this->getTypeface()); 16236e9ac12495f3b64b6ea8860bb9f99c43cd33aa08Ben Wagner ret = GetGlyphOutlineW(fDDC, glyph, flags, &gm, total_size, glyphbuf->get(), &fMat22); 16240abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (GDI_ERROR == ret) { 16250abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkASSERT(false); 16260abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return 0; 16270abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16280abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16290abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16300abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return total_size; 16310abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com} 16320abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 16336e9ac12495f3b64b6ea8860bb9f99c43cd33aa08Ben Wagnervoid SkScalerContext_GDI::generatePath(SkGlyphID glyph, SkPath* path) { 16343ba043f460a5d60a7fd733f4109132fa79148559dcheng SkASSERT(path); 16350abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkASSERT(fDDC); 16360abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 16370abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com path->reset(); 16380abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 16390abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // Out of all the fonts on a typical Windows box, 16400abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // 25% of glyphs require more than 2KB. 16410abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // 1% of glyphs require more than 4KB. 16420abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // 0.01% of glyphs require more than 8KB. 16430abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // 8KB is less than 1% of the normal 1MB stack on Windows. 16440abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // Note that some web fonts glyphs require more than 20KB. 16450abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com //static const DWORD BUFFERSIZE = (1 << 13); 16460abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 16470abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com //GDI only uses hinted outlines when axis aligned. 16480abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com UINT format = GGO_NATIVE | GGO_GLYPH_INDEX; 16490abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (fRec.getHinting() == SkPaint::kNo_Hinting || fRec.getHinting() == SkPaint::kSlight_Hinting){ 16500abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com format |= GGO_UNHINTED; 16510abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16520abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkAutoSTMalloc<BUFFERSIZE, uint8_t> glyphbuf(BUFFERSIZE); 16530abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com DWORD total_size = getGDIGlyphPath(glyph, format, &glyphbuf); 16540abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (0 == total_size) { 16550abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return; 16560abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16570abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 16580abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (fRec.getHinting() != SkPaint::kSlight_Hinting) { 16590abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com sk_path_from_gdi_path(path, glyphbuf, total_size); 16600abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } else { 16610abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com //GDI only uses hinted outlines when axis aligned. 16620abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com UINT format = GGO_NATIVE | GGO_GLYPH_INDEX; 16630abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 16640abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkAutoSTMalloc<BUFFERSIZE, uint8_t> hintedGlyphbuf(BUFFERSIZE); 16650abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com DWORD hinted_total_size = getGDIGlyphPath(glyph, format, &hintedGlyphbuf); 16660abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (0 == hinted_total_size) { 16670abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return; 16680abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16690abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 1670dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com if (!sk_path_from_gdi_paths(path, glyphbuf, total_size, 1671dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com GDIGlyphbufferPointIter(hintedGlyphbuf, hinted_total_size))) 1672dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com { 1673dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com path->reset(); 1674dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com sk_path_from_gdi_path(path, glyphbuf, total_size); 1675dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com } 16760abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16770abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com} 16780abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 1679484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comstatic void logfont_for_name(const char* familyName, LOGFONT* lf) { 1680484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com sk_bzero(lf, sizeof(LOGFONT)); 1681e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com#ifdef UNICODE 1682484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com // Get the buffer size needed first. 1683484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com size_t str_len = ::MultiByteToWideChar(CP_UTF8, 0, familyName, 168496fcdcc219d2a0d3579719b84b28bede76efba64halcanary -1, nullptr, 0); 1685484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com // Allocate a buffer (str_len already has terminating null 1686484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com // accounted for). 1687484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com wchar_t *wideFamilyName = new wchar_t[str_len]; 1688484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com // Now actually convert the string. 1689484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ::MultiByteToWideChar(CP_UTF8, 0, familyName, -1, 1690484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com wideFamilyName, str_len); 1691484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ::wcsncpy(lf->lfFaceName, wideFamilyName, LF_FACESIZE - 1); 1692484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com delete [] wideFamilyName; 1693484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com lf->lfFaceName[LF_FACESIZE-1] = L'\0'; 1694e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com#else 1695484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ::strncpy(lf->lfFaceName, familyName, LF_FACESIZE - 1); 1696484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com lf->lfFaceName[LF_FACESIZE - 1] = '\0'; 1697e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com#endif 1698e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com} 1699e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com 1700b374d6a62c0259387d90cad74753d8bad9ee1beabungemanvoid LogFontTypeface::onGetFamilyName(SkString* familyName) const { 17017103f182ce61280eacb35f1832df350b642a5381bungeman@google.com // Get the actual name of the typeface. The logfont may not know this. 17025526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.com HFONT font = CreateFontIndirect(&fLogFont); 17037103f182ce61280eacb35f1832df350b642a5381bungeman@google.com 170496fcdcc219d2a0d3579719b84b28bede76efba64halcanary HDC deviceContext = ::CreateCompatibleDC(nullptr); 17057103f182ce61280eacb35f1832df350b642a5381bungeman@google.com HFONT savefont = (HFONT)SelectObject(deviceContext, font); 17067103f182ce61280eacb35f1832df350b642a5381bungeman@google.com 1707b374d6a62c0259387d90cad74753d8bad9ee1beabungeman dcfontname_to_skstring(deviceContext, fLogFont, familyName); 17087103f182ce61280eacb35f1832df350b642a5381bungeman@google.com 17097103f182ce61280eacb35f1832df350b642a5381bungeman@google.com if (deviceContext) { 17107103f182ce61280eacb35f1832df350b642a5381bungeman@google.com ::SelectObject(deviceContext, savefont); 17117103f182ce61280eacb35f1832df350b642a5381bungeman@google.com ::DeleteDC(deviceContext); 17127103f182ce61280eacb35f1832df350b642a5381bungeman@google.com } 17137103f182ce61280eacb35f1832df350b642a5381bungeman@google.com if (font) { 17147103f182ce61280eacb35f1832df350b642a5381bungeman@google.com ::DeleteObject(font); 17157103f182ce61280eacb35f1832df350b642a5381bungeman@google.com } 1716b374d6a62c0259387d90cad74753d8bad9ee1beabungeman} 17177103f182ce61280eacb35f1832df350b642a5381bungeman@google.com 1718b374d6a62c0259387d90cad74753d8bad9ee1beabungemanvoid LogFontTypeface::onGetFontDescriptor(SkFontDescriptor* desc, 1719b374d6a62c0259387d90cad74753d8bad9ee1beabungeman bool* isLocalStream) const { 1720b374d6a62c0259387d90cad74753d8bad9ee1beabungeman SkString familyName; 1721b374d6a62c0259387d90cad74753d8bad9ee1beabungeman this->onGetFamilyName(&familyName); 17225526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.com desc->setFamilyName(familyName.c_str()); 1723b8113780c3cfed640016b263194b7f1531d43312bungeman desc->setStyle(this->fontStyle()); 17245526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.com *isLocalStream = this->fSerializeAsStream; 1725ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1726ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1727209e4b1b70a5e9c2f504de15f038999ed9ee4ae5Hal Canarystd::unique_ptr<SkAdvancedTypefaceMetrics> LogFontTypeface::onGetAdvancedMetrics() const { 17282689f615e364dc48ad73826564f5b13d2329179dreed@google.com LOGFONT lf = fLogFont; 1729209e4b1b70a5e9c2f504de15f038999ed9ee4ae5Hal Canary std::unique_ptr<SkAdvancedTypefaceMetrics> info(nullptr); 1730ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 173196fcdcc219d2a0d3579719b84b28bede76efba64halcanary HDC hdc = CreateCompatibleDC(nullptr); 1732ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT font = CreateFontIndirect(&lf); 1733ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT savefont = (HFONT)SelectObject(hdc, font); 173496fcdcc219d2a0d3579719b84b28bede76efba64halcanary HFONT designFont = nullptr; 1735ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 173605b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com const char stem_chars[] = {'i', 'I', '!', '1'}; 173705b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com int16_t min_width; 173805b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com unsigned glyphCount; 173905b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com 1740ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // To request design units, create a logical font whose height is specified 1741ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // as unitsPerEm. 1742ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com OUTLINETEXTMETRIC otm; 174339698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com unsigned int otmRet = GetOutlineTextMetrics(hdc, sizeof(otm), &otm); 174439698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (0 == otmRet) { 1745055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com call_ensure_accessible(lf); 174639698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com otmRet = GetOutlineTextMetrics(hdc, sizeof(otm), &otm); 174739698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 174839698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (!otmRet || !GetTextFace(hdc, LF_FACESIZE, lf.lfFaceName)) { 1749ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com goto Error; 1750ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1751ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com lf.lfHeight = -SkToS32(otm.otmEMSquare); 1752ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com designFont = CreateFontIndirect(&lf); 1753ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SelectObject(hdc, designFont); 1754ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (!GetOutlineTextMetrics(hdc, sizeof(otm), &otm)) { 1755ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com goto Error; 1756ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 17577bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com glyphCount = calculateGlyphCount(hdc, fLogFont); 1758ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1759209e4b1b70a5e9c2f504de15f038999ed9ee4ae5Hal Canary info.reset(new SkAdvancedTypefaceMetrics); 17607103f182ce61280eacb35f1832df350b642a5381bungeman@google.com tchar_to_skstring(lf.lfFaceName, &info->fFontName); 17610f9bad01b0e7ad592ffb342dcf1d238b15329be1vandebo // If bit 1 is set, the font may not be embedded in a document. 17620f9bad01b0e7ad592ffb342dcf1d238b15329be1vandebo // If bit 1 is clear, the font can be embedded. 17630f9bad01b0e7ad592ffb342dcf1d238b15329be1vandebo // If bit 2 is set, the embedding is read-only. 17640f9bad01b0e7ad592ffb342dcf1d238b15329be1vandebo if (otm.otmfsType & 0x1) { 17653287588a467ee579c3947fe13c6add5048b14aa9halcanary info->fFlags |= SkAdvancedTypefaceMetrics::kNotEmbeddable_FontFlag; 17660f9bad01b0e7ad592ffb342dcf1d238b15329be1vandebo } 1767ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1768209e4b1b70a5e9c2f504de15f038999ed9ee4ae5Hal Canary populate_glyph_to_unicode(hdc, glyphCount, &(info->fGlyphToUnicode)); 17696744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 1770d41e70de196e78e21e1001d23a7259785cbd0835vandebo@chromium.org if (glyphCount > 0 && 1771d41e70de196e78e21e1001d23a7259785cbd0835vandebo@chromium.org (otm.otmTextMetrics.tmPitchAndFamily & TMPF_TRUETYPE)) { 1772ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fType = SkAdvancedTypefaceMetrics::kTrueType_Font; 1773ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 1774390c6d7a9018e233a6519397ac6c739fb21a99efedisonn@google.com goto ReturnInfo; 1775ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 17765aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org 1777ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // If this bit is clear the font is a fixed pitch font. 1778ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (!(otm.otmTextMetrics.tmPitchAndFamily & TMPF_FIXED_PITCH)) { 1779ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kFixedPitch_Style; 1780ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1781ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (otm.otmTextMetrics.tmItalic) { 1782ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kItalic_Style; 1783ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1784ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (otm.otmTextMetrics.tmPitchAndFamily & FF_ROMAN) { 1785ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kSerif_Style; 1786ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else if (otm.otmTextMetrics.tmPitchAndFamily & FF_SCRIPT) { 1787ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kScript_Style; 1788ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1789ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1790ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // The main italic angle of the font, in tenths of a degree counterclockwise 1791ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // from vertical. 1792ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fItalicAngle = otm.otmItalicAngle / 10; 1793ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fAscent = SkToS16(otm.otmTextMetrics.tmAscent); 1794ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fDescent = SkToS16(-otm.otmTextMetrics.tmDescent); 1795ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // TODO(ctguil): Use alternate cap height calculation. 1796ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // MSDN says otmsCapEmHeight is not support but it is returning a value on 1797ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // my Win7 box. 1798ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fCapHeight = otm.otmsCapEmHeight; 1799ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fBBox = 1800ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkIRect::MakeLTRB(otm.otmrcFontBox.left, otm.otmrcFontBox.top, 1801ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com otm.otmrcFontBox.right, otm.otmrcFontBox.bottom); 1802ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1803ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Figure out a good guess for StemV - Min width of i, I, !, 1. 1804ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // This probably isn't very good with an italic font. 180505b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com min_width = SHRT_MAX; 1806ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStemV = 0; 1807ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com for (size_t i = 0; i < SK_ARRAY_COUNT(stem_chars); i++) { 1808ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ABC abcWidths; 1809ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (GetCharABCWidths(hdc, stem_chars[i], stem_chars[i], &abcWidths)) { 1810ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int16_t width = abcWidths.abcB; 1811ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (width > 0 && width < min_width) { 1812ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com min_width = width; 1813ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStemV = min_width; 1814ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1815ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1816ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1817ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1818ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comError: 1819390c6d7a9018e233a6519397ac6c739fb21a99efedisonn@google.comReturnInfo: 1820ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SelectObject(hdc, savefont); 1821ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteObject(designFont); 1822ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteObject(font); 1823ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteDC(hdc); 1824ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1825ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return info; 1826ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1827ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1828a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com//Dummy representation of a Base64 encoded GUID from create_unique_font_name. 1829a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#define BASE64_GUID_ID "XXXXXXXXXXXXXXXXXXXXXXXX" 183096fcdcc219d2a0d3579719b84b28bede76efba64halcanary//Length of GUID representation from create_id, including nullptr terminator. 1831a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#define BASE64_GUID_ID_LEN SK_ARRAY_COUNT(BASE64_GUID_ID) 1832a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 183399fe82260633fcf5d92cca38d12ef0937ecca61cbungemanstatic_assert(BASE64_GUID_ID_LEN < LF_FACESIZE, "GUID_longer_than_facesize"); 1834a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1835a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 1836a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com NameID 6 Postscript names cannot have the character '/'. 1837a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com It would be easier to hex encode the GUID, but that is 32 bytes, 1838a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com and many systems have issues with names longer than 28 bytes. 1839a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com The following need not be any standard base64 encoding. 1840a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com The encoded value is never decoded. 1841a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com*/ 1842d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.comstatic const char postscript_safe_base64_encode[] = 1843a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com "ABCDEFGHIJKLMNOPQRSTUVWXYZ" 1844a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com "abcdefghijklmnopqrstuvwxyz" 1845a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com "0123456789-_="; 1846a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1847a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 1848a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com Formats a GUID into Base64 and places it into buffer. 1849a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com buffer should have space for at least BASE64_GUID_ID_LEN characters. 1850a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com The string will always be null terminated. 1851a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com XXXXXXXXXXXXXXXXXXXXXXXX0 1852a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 1853a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comstatic void format_guid_b64(const GUID& guid, char* buffer, size_t bufferSize) { 1854a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com SkASSERT(bufferSize >= BASE64_GUID_ID_LEN); 1855a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com size_t written = SkBase64::Encode(&guid, sizeof(guid), buffer, postscript_safe_base64_encode); 1856a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com SkASSERT(written < LF_FACESIZE); 1857a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com buffer[written] = '\0'; 1858a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com} 1859a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1860a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 1861a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com Creates a Base64 encoded GUID and places it into buffer. 1862a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com buffer should have space for at least BASE64_GUID_ID_LEN characters. 1863a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com The string will always be null terminated. 1864a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com XXXXXXXXXXXXXXXXXXXXXXXX0 1865a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 1866a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comstatic HRESULT create_unique_font_name(char* buffer, size_t bufferSize) { 1867a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com GUID guid = {}; 1868a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com if (FAILED(CoCreateGuid(&guid))) { 1869a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return E_UNEXPECTED; 1870a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1871a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com format_guid_b64(guid, buffer, bufferSize); 1872a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1873a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return S_OK; 1874a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com} 1875a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1876a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 187796fcdcc219d2a0d3579719b84b28bede76efba64halcanary Introduces a font to GDI. On failure will return nullptr. The returned handle 1878a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com should eventually be passed to RemoveFontMemResourceEx. 1879a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com*/ 1880a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comstatic HANDLE activate_font(SkData* fontData) { 1881a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com DWORD numFonts = 0; 1882a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com //AddFontMemResourceEx just copies the data, but does not specify const. 1883a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com HANDLE fontHandle = AddFontMemResourceEx(const_cast<void*>(fontData->data()), 18844b18f5767ab1df7fedf0ff2e3a9eac7f7c500c36bungeman@google.com static_cast<DWORD>(fontData->size()), 1885a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 0, 1886a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com &numFonts); 1887a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 188896fcdcc219d2a0d3579719b84b28bede76efba64halcanary if (fontHandle != nullptr && numFonts < 1) { 1889a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com RemoveFontMemResourceEx(fontHandle); 189096fcdcc219d2a0d3579719b84b28bede76efba64halcanary return nullptr; 1891a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1892a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1893a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return fontHandle; 1894a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com} 1895a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1896a1193e4b0e34a7e4e1bd33e9708d7341679f8321scroggo// Does not affect ownership of stream. 1897592273965a7fc7fc403252e420d15f6555b8f25dMike Reedstatic sk_sp<SkTypeface> create_from_stream(std::unique_ptr<SkStreamAsset> stream) { 1898a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Create a unique and unpredictable font name. 1899a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Avoids collisions and access from CSS. 1900a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com char familyName[BASE64_GUID_ID_LEN]; 1901a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com const int familyNameSize = SK_ARRAY_COUNT(familyName); 1902a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com if (FAILED(create_unique_font_name(familyName, familyNameSize))) { 190396fcdcc219d2a0d3579719b84b28bede76efba64halcanary return nullptr; 1904a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1905d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com 1906a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Change the name of the font. 1907592273965a7fc7fc403252e420d15f6555b8f25dMike Reed sk_sp<SkData> rewrittenFontData(SkOTUtils::RenameFont(stream.get(), familyName, familyNameSize-1)); 190896fcdcc219d2a0d3579719b84b28bede76efba64halcanary if (nullptr == rewrittenFontData.get()) { 190996fcdcc219d2a0d3579719b84b28bede76efba64halcanary return nullptr; 1910a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1911ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1912a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Register the font with GDI. 1913e9bbee397ce96aa6642a42823feb1d7c4a8ffd8bbungeman@google.com HANDLE fontReference = activate_font(rewrittenFontData.get()); 191496fcdcc219d2a0d3579719b84b28bede76efba64halcanary if (nullptr == fontReference) { 191596fcdcc219d2a0d3579719b84b28bede76efba64halcanary return nullptr; 1916a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1917a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1918a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Create the typeface. 1919a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com LOGFONT lf; 1920484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com logfont_for_name(familyName, &lf); 1921a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1922592273965a7fc7fc403252e420d15f6555b8f25dMike Reed return sk_sp<SkTypeface>(SkCreateFontMemResourceTypefaceFromLOGFONT(lf, fontReference)); 1923ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1924ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 19255f213d9627d2eefa7da81cd97f36754f75eb4ae9bungemanSkStreamAsset* LogFontTypeface::onOpenStream(int* ttcIndex) const { 19260042b9c2a2e6fe954cdfbcd5a5b7449cdf41a4c3reed@google.com *ttcIndex = 0; 19270042b9c2a2e6fe954cdfbcd5a5b7449cdf41a4c3reed@google.com 1928f4c2622a1a3489988f2d85a81fdc132b17a92bddctguil@chromium.org const DWORD kTTCTag = 1929f4c2622a1a3489988f2d85a81fdc132b17a92bddctguil@chromium.org SkEndian_SwapBE32(SkSetFourByteTag('t', 't', 'c', 'f')); 19300042b9c2a2e6fe954cdfbcd5a5b7449cdf41a4c3reed@google.com LOGFONT lf = fLogFont; 1931ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 193296fcdcc219d2a0d3579719b84b28bede76efba64halcanary HDC hdc = ::CreateCompatibleDC(nullptr); 193359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com HFONT font = CreateFontIndirect(&lf); 1934ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT savefont = (HFONT)SelectObject(hdc, font); 1935ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 193696fcdcc219d2a0d3579719b84b28bede76efba64halcanary SkMemoryStream* stream = nullptr; 1937d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org DWORD tables[2] = {kTTCTag, 0}; 1938d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org for (int i = 0; i < SK_ARRAY_COUNT(tables); i++) { 193996fcdcc219d2a0d3579719b84b28bede76efba64halcanary DWORD bufferSize = GetFontData(hdc, tables[i], 0, nullptr, 0); 194039698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (bufferSize == GDI_ERROR) { 1941055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com call_ensure_accessible(lf); 194296fcdcc219d2a0d3579719b84b28bede76efba64halcanary bufferSize = GetFontData(hdc, tables[i], 0, nullptr, 0); 194339698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 1944d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org if (bufferSize != GDI_ERROR) { 1945d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org stream = new SkMemoryStream(bufferSize); 19464b18f5767ab1df7fedf0ff2e3a9eac7f7c500c36bungeman@google.com if (GetFontData(hdc, tables[i], 0, (void*)stream->getMemoryBase(), bufferSize)) { 1947d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org break; 1948d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org } else { 1949d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org delete stream; 195096fcdcc219d2a0d3579719b84b28bede76efba64halcanary stream = nullptr; 1951d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org } 1952d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org } 1953ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1954ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1955ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SelectObject(hdc, savefont); 1956ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteObject(font); 1957ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteDC(hdc); 1958ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1959ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return stream; 1960ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1961ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 19623c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.comstatic void bmpCharsToGlyphs(HDC hdc, const WCHAR* bmpChars, int count, uint16_t* glyphs, 19633c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com bool Ox1FHack) 19643c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com{ 19653c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com DWORD result = GetGlyphIndicesW(hdc, bmpChars, count, glyphs, GGI_MARK_NONEXISTING_GLYPHS); 19663c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (GDI_ERROR == result) { 19673c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com for (int i = 0; i < count; ++i) { 19683c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com glyphs[i] = 0; 19693c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 19703c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com return; 19713c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 19723c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 19733c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (Ox1FHack) { 19743c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com for (int i = 0; i < count; ++i) { 19753c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (0xFFFF == glyphs[i] || 0x1F == glyphs[i]) { 19763c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com glyphs[i] = 0; 19773c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 19783c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 19793c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } else { 19803c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com for (int i = 0; i < count; ++i) { 19813c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (0xFFFF == glyphs[i]){ 19823c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com glyphs[i] = 0; 19833c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 19843c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 19853c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 19863c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com} 19873c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 19883c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.comstatic uint16_t nonBmpCharToGlyph(HDC hdc, SCRIPT_CACHE* scriptCache, const WCHAR utf16[2]) { 19893c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com uint16_t index = 0; 19903c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com // Use uniscribe to detemine glyph index for non-BMP characters. 19913c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com static const int numWCHAR = 2; 19923c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com static const int maxItems = 2; 199396fcdcc219d2a0d3579719b84b28bede76efba64halcanary // MSDN states that this can be nullptr, but some things don't work then. 19943c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com SCRIPT_CONTROL scriptControl = { 0 }; 19953c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com // Add extra item to SCRIPT_ITEM to work around a bug (now documented). 19963c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com // https://bugzilla.mozilla.org/show_bug.cgi?id=366643 19973c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com SCRIPT_ITEM si[maxItems + 1]; 19983c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com int numItems; 199996fcdcc219d2a0d3579719b84b28bede76efba64halcanary HRZM(ScriptItemize(utf16, numWCHAR, maxItems, &scriptControl, nullptr, si, &numItems), 20003c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com "Could not itemize character."); 20013c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 20023c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com // Sometimes ScriptShape cannot find a glyph for a non-BMP and returns 2 space glyphs. 20033c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com static const int maxGlyphs = 2; 20043c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com SCRIPT_VISATTR vsa[maxGlyphs]; 20053c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com WORD outGlyphs[maxGlyphs]; 20063c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com WORD logClust[numWCHAR]; 20073c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com int numGlyphs; 20083c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com HRZM(ScriptShape(hdc, scriptCache, utf16, numWCHAR, maxGlyphs, &si[0].a, 20093c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com outGlyphs, logClust, vsa, &numGlyphs), 20103c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com "Could not shape character."); 20113c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (1 == numGlyphs) { 20123c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com index = outGlyphs[0]; 20133c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 20143c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com return index; 20153c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com} 20163c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 20173c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.comclass SkAutoHDC { 20183c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.compublic: 20193c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com SkAutoHDC(const LOGFONT& lf) 202096fcdcc219d2a0d3579719b84b28bede76efba64halcanary : fHdc(::CreateCompatibleDC(nullptr)) 20213c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com , fFont(::CreateFontIndirect(&lf)) 20223c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com , fSavefont((HFONT)SelectObject(fHdc, fFont)) 20233c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com { } 20243c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com ~SkAutoHDC() { 20253c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com SelectObject(fHdc, fSavefont); 20263c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com DeleteObject(fFont); 20273c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com DeleteDC(fHdc); 20283c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 20293c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com operator HDC() { return fHdc; } 20303c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.comprivate: 20313c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com HDC fHdc; 20323c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com HFONT fFont; 20333c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com HFONT fSavefont; 20343c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com}; 2035e61a86cfa00ea393ecc4a71fca94e1d476a37ecccommit-bot@chromium.org#define SkAutoHDC(...) SK_REQUIRE_LOCAL_VAR(SkAutoHDC) 20363c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 20373c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.comint LogFontTypeface::onCharsToGlyphs(const void* chars, Encoding encoding, 20383c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com uint16_t userGlyphs[], int glyphCount) const 20393c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com{ 20403c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com SkAutoHDC hdc(fLogFont); 20413c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 20423c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com TEXTMETRIC tm; 20433c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (0 == GetTextMetrics(hdc, &tm)) { 20443c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com call_ensure_accessible(fLogFont); 20453c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (0 == GetTextMetrics(hdc, &tm)) { 20463c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com tm.tmPitchAndFamily = TMPF_TRUETYPE; 20473c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 20483c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 20493c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com bool Ox1FHack = !(tm.tmPitchAndFamily & TMPF_VECTOR) /*&& winVer < Vista */; 20503c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 20513c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com SkAutoSTMalloc<256, uint16_t> scratchGlyphs; 20523c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com uint16_t* glyphs; 205396fcdcc219d2a0d3579719b84b28bede76efba64halcanary if (userGlyphs != nullptr) { 20543c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com glyphs = userGlyphs; 20553c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } else { 20563c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com glyphs = scratchGlyphs.reset(glyphCount); 20573c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 20583c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 20593c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com SCRIPT_CACHE sc = 0; 20603c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com switch (encoding) { 20613c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com case SkTypeface::kUTF8_Encoding: { 20623c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com static const int scratchCount = 256; 20633c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com WCHAR scratch[scratchCount]; 20643c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com int glyphIndex = 0; 20653c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com const char* currentUtf8 = reinterpret_cast<const char*>(chars); 20663c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com SkUnichar currentChar; 20673c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (glyphCount) { 20683c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com currentChar = SkUTF8_NextUnichar(¤tUtf8); 20693c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 20703c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com while (glyphIndex < glyphCount) { 20713c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com // Try a run of bmp. 20723c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com int glyphsLeft = SkTMin(glyphCount - glyphIndex, scratchCount); 20733c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com int runLength = 0; 20743c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com while (runLength < glyphsLeft && currentChar <= 0xFFFF) { 20753c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com scratch[runLength] = static_cast<WCHAR>(currentChar); 20763c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com ++runLength; 20773c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (runLength < glyphsLeft) { 20783c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com currentChar = SkUTF8_NextUnichar(¤tUtf8); 20793c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 20803c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 20813c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (runLength) { 20823c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com bmpCharsToGlyphs(hdc, scratch, runLength, &glyphs[glyphIndex], Ox1FHack); 20833c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com glyphIndex += runLength; 20843c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 20853c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 20863c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com // Try a run of non-bmp. 20873c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com while (glyphIndex < glyphCount && currentChar > 0xFFFF) { 20883c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com SkUTF16_FromUnichar(currentChar, reinterpret_cast<uint16_t*>(scratch)); 20893c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com glyphs[glyphIndex] = nonBmpCharToGlyph(hdc, &sc, scratch); 20903c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com ++glyphIndex; 20913c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (glyphIndex < glyphCount) { 20923c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com currentChar = SkUTF8_NextUnichar(¤tUtf8); 20933c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 20943c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 20953c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 20963c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com break; 20973c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 20983c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com case SkTypeface::kUTF16_Encoding: { 20993c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com int glyphIndex = 0; 21003c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com const WCHAR* currentUtf16 = reinterpret_cast<const WCHAR*>(chars); 21013c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com while (glyphIndex < glyphCount) { 21023c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com // Try a run of bmp. 21033c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com int glyphsLeft = glyphCount - glyphIndex; 21043c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com int runLength = 0; 21053c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com while (runLength < glyphsLeft && !SkUTF16_IsHighSurrogate(currentUtf16[runLength])) { 21063c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com ++runLength; 21073c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21083c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (runLength) { 21093c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com bmpCharsToGlyphs(hdc, currentUtf16, runLength, &glyphs[glyphIndex], Ox1FHack); 21103c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com glyphIndex += runLength; 21113c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com currentUtf16 += runLength; 21123c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21133c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 21143c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com // Try a run of non-bmp. 21153c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com while (glyphIndex < glyphCount && SkUTF16_IsHighSurrogate(*currentUtf16)) { 21163c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com glyphs[glyphIndex] = nonBmpCharToGlyph(hdc, &sc, currentUtf16); 21173c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com ++glyphIndex; 21183c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com currentUtf16 += 2; 21193c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21203c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21213c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com break; 21223c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21233c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com case SkTypeface::kUTF32_Encoding: { 21243c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com static const int scratchCount = 256; 21253c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com WCHAR scratch[scratchCount]; 21263c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com int glyphIndex = 0; 21273c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com const uint32_t* utf32 = reinterpret_cast<const uint32_t*>(chars); 21283c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com while (glyphIndex < glyphCount) { 21293c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com // Try a run of bmp. 21303c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com int glyphsLeft = SkTMin(glyphCount - glyphIndex, scratchCount); 21313c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com int runLength = 0; 21323c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com while (runLength < glyphsLeft && utf32[glyphIndex + runLength] <= 0xFFFF) { 21333c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com scratch[runLength] = static_cast<WCHAR>(utf32[glyphIndex + runLength]); 21343c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com ++runLength; 21353c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21363c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (runLength) { 21373c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com bmpCharsToGlyphs(hdc, scratch, runLength, &glyphs[glyphIndex], Ox1FHack); 21383c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com glyphIndex += runLength; 21393c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21403c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 21413c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com // Try a run of non-bmp. 21423c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com while (glyphIndex < glyphCount && utf32[glyphIndex] > 0xFFFF) { 21433c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com SkUTF16_FromUnichar(utf32[glyphIndex], reinterpret_cast<uint16_t*>(scratch)); 21443c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com glyphs[glyphIndex] = nonBmpCharToGlyph(hdc, &sc, scratch); 21453c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com ++glyphIndex; 21463c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21473c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21483c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com break; 21493c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21503c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com default: 2151f2b340fc885ad2a12d2d73974eff9c8f4c94192cdjsollen SK_ABORT("Invalid Text Encoding"); 21523c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21533c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 21543c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (sc) { 21553c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com ::ScriptFreeCache(&sc); 21563c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21573c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 21583c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com for (int i = 0; i < glyphCount; ++i) { 21593c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (0 == glyphs[i]) { 21603c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com return i; 21613c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21623c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21633c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com return glyphCount; 21643c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com} 21653c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 21667bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.comint LogFontTypeface::onCountGlyphs() const { 216796fcdcc219d2a0d3579719b84b28bede76efba64halcanary HDC hdc = ::CreateCompatibleDC(nullptr); 21687bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com HFONT font = CreateFontIndirect(&fLogFont); 21697bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com HFONT savefont = (HFONT)SelectObject(hdc, font); 21707bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 21717bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com unsigned int glyphCount = calculateGlyphCount(hdc, fLogFont); 21727bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 21737bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com SelectObject(hdc, savefont); 21747bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com DeleteObject(font); 21757bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com DeleteDC(hdc); 21767bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 21777bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com return glyphCount; 21787bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com} 21797bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 21807bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.comint LogFontTypeface::onGetUPEM() const { 218196fcdcc219d2a0d3579719b84b28bede76efba64halcanary HDC hdc = ::CreateCompatibleDC(nullptr); 21827bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com HFONT font = CreateFontIndirect(&fLogFont); 21837bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com HFONT savefont = (HFONT)SelectObject(hdc, font); 21847bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 21857bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com unsigned int upem = calculateUPEM(hdc, fLogFont); 21867bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 21877bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com SelectObject(hdc, savefont); 21887bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com DeleteObject(font); 21897bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com DeleteDC(hdc); 21907bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 21917bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com return upem; 21927bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com} 21937bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 2194839702b61934914118ec557dd641be322eba3b5fbungeman@google.comSkTypeface::LocalizedStrings* LogFontTypeface::onCreateFamilyNameIterator() const { 2195a980269c2498836101146adc729ef780fb89824ebungeman@google.com SkTypeface::LocalizedStrings* nameIter = 2196a980269c2498836101146adc729ef780fb89824ebungeman@google.com SkOTUtils::LocalizedStrings_NameTable::CreateForFamilyNames(*this); 219796fcdcc219d2a0d3579719b84b28bede76efba64halcanary if (nullptr == nameIter) { 2198a980269c2498836101146adc729ef780fb89824ebungeman@google.com SkString familyName; 2199a980269c2498836101146adc729ef780fb89824ebungeman@google.com this->getFamilyName(&familyName); 2200a980269c2498836101146adc729ef780fb89824ebungeman@google.com SkString language("und"); //undetermined 2201a980269c2498836101146adc729ef780fb89824ebungeman@google.com nameIter = new SkOTUtils::LocalizedStrings_SingleName(familyName, language); 2202a980269c2498836101146adc729ef780fb89824ebungeman@google.com } 2203a980269c2498836101146adc729ef780fb89824ebungeman@google.com return nameIter; 2204a980269c2498836101146adc729ef780fb89824ebungeman@google.com} 2205a980269c2498836101146adc729ef780fb89824ebungeman@google.com 2206b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.comint LogFontTypeface::onGetTableTags(SkFontTableTag tags[]) const { 2207b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com SkSFNTHeader header; 2208b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com if (sizeof(header) != this->onGetTableData(0, 0, sizeof(header), &header)) { 2209b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com return 0; 2210b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com } 2211b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com 2212b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com int numTables = SkEndian_SwapBE16(header.numTables); 2213b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com 2214b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com if (tags) { 2215b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com size_t size = numTables * sizeof(SkSFNTHeader::TableDirectoryEntry); 2216b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com SkAutoSTMalloc<0x20, SkSFNTHeader::TableDirectoryEntry> dir(numTables); 2217b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com if (size != this->onGetTableData(0, sizeof(header), size, dir.get())) { 2218b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com return 0; 2219b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com } 2220b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com 2221b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com for (int i = 0; i < numTables; ++i) { 2222b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com tags[i] = SkEndian_SwapBE32(dir[i].tag); 2223b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com } 2224b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com } 2225b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com return numTables; 2226b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com} 2227b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com 2228b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.comsize_t LogFontTypeface::onGetTableData(SkFontTableTag tag, size_t offset, 2229b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com size_t length, void* data) const 2230b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com{ 2231b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com LOGFONT lf = fLogFont; 2232b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com 223396fcdcc219d2a0d3579719b84b28bede76efba64halcanary HDC hdc = ::CreateCompatibleDC(nullptr); 2234b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com HFONT font = CreateFontIndirect(&lf); 2235b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com HFONT savefont = (HFONT)SelectObject(hdc, font); 2236b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com 2237b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com tag = SkEndian_SwapBE32(tag); 223896fcdcc219d2a0d3579719b84b28bede76efba64halcanary if (nullptr == data) { 2239b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com length = 0; 2240b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com } 22418b169311b59ab84e8ca6f3630a1e960cc1be751erobertphillips@google.com DWORD bufferSize = GetFontData(hdc, tag, (DWORD) offset, data, (DWORD) length); 2242b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com if (bufferSize == GDI_ERROR) { 2243b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com call_ensure_accessible(lf); 22448b169311b59ab84e8ca6f3630a1e960cc1be751erobertphillips@google.com bufferSize = GetFontData(hdc, tag, (DWORD) offset, data, (DWORD) length); 2245b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com } 2246b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com 2247b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com SelectObject(hdc, savefont); 2248b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com DeleteObject(font); 2249b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com DeleteDC(hdc); 2250b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com 2251b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com return bufferSize == GDI_ERROR ? 0 : bufferSize; 2252b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com} 2253b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com 2254a9322c2d86aaef1085c267dfc43cf0747f170a86reedSkScalerContext* LogFontTypeface::onCreateScalerContext(const SkScalerContextEffects& effects, 2255a9322c2d86aaef1085c267dfc43cf0747f170a86reed const SkDescriptor* desc) const { 22567cfd46aebda7b7d2b88e73621ed0d1be7244c2cabungeman auto ctx = skstd::make_unique<SkScalerContext_GDI>( 22577cfd46aebda7b7d2b88e73621ed0d1be7244c2cabungeman sk_ref_sp(const_cast<LogFontTypeface*>(this)), effects, desc); 225884e22d847fc84727bc220947162363ee1fe068fcreed@google.com if (!ctx->isValid()) { 2259c05b2bf3d2523b6feb2fc1f08bfe6acf917fb03eBen Wagner return nullptr; 226084e22d847fc84727bc220947162363ee1fe068fcreed@google.com } 22617cfd46aebda7b7d2b88e73621ed0d1be7244c2cabungeman return ctx.release(); 2262ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 2263ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 22640da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.comvoid LogFontTypeface::onFilterRec(SkScalerContextRec* rec) const { 2265c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org if (rec->fFlags & SkScalerContext::kLCD_BGROrder_Flag || 2266c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org rec->fFlags & SkScalerContext::kLCD_Vertical_Flag) 2267c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org { 2268c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org rec->fMaskFormat = SkMask::kA8_Format; 2269c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org rec->fFlags |= SkScalerContext::kGenA8FromLCD_Flag; 2270c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org } 2271c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org 2272410780677af260e32948b02c0725ef6ad761260cbungeman unsigned flagsWeDontSupport = SkScalerContext::kVertical_Flag | 2273410780677af260e32948b02c0725ef6ad761260cbungeman SkScalerContext::kDevKernText_Flag | 2274f6f56878bc96386882721b15ba610984185d3dc9bungeman@google.com SkScalerContext::kForceAutohinting_Flag | 2275e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kEmbeddedBitmapText_Flag | 2276e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kEmbolden_Flag | 2277e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kLCD_BGROrder_Flag | 2278e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kLCD_Vertical_Flag; 2279e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com rec->fFlags &= ~flagsWeDontSupport; 2280e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com 2281e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkPaint::Hinting h = rec->getHinting(); 2282e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com switch (h) { 2283e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kNo_Hinting: 22840abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com break; 2285e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kSlight_Hinting: 22860abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // Only do slight hinting when axis aligned. 22877c86d8eb3a61eae188bc8af2cd0363858eaea07ebungeman@google.com // TODO: re-enable slight hinting when FontHostTest can pass. 22887c86d8eb3a61eae188bc8af2cd0363858eaea07ebungeman@google.com //if (!isAxisAligned(*rec)) { 22890abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com h = SkPaint::kNo_Hinting; 22907c86d8eb3a61eae188bc8af2cd0363858eaea07ebungeman@google.com //} 2291e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com break; 2292e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kNormal_Hinting: 2293e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kFull_Hinting: 22940abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // TODO: need to be able to distinguish subpixel positioned glyphs 22950abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // and linear metrics. 22960abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com //rec->fFlags &= ~SkScalerContext::kSubpixelPositioning_Flag; 2297e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com h = SkPaint::kNormal_Hinting; 2298e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com break; 2299e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com default: 23000c00f21fee3f5cfa3aa7e5d46ff94cb8cf340451tomhudson@google.com SkDEBUGFAIL("unknown hinting"); 2301e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com } 23020abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com //TODO: if this is a bitmap font, squash hinting and subpixel. 2303e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com rec->setHinting(h); 2304da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com 23059181aa84aa288d2bc3ab079b6b40a79ac87d8807reed@google.com// turn this off since GDI might turn A8 into BW! Need a bigger fix. 23069181aa84aa288d2bc3ab079b6b40a79ac87d8807reed@google.com#if 0 2307da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com // Disable LCD when rotated, since GDI's output is ugly 2308da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com if (isLCD(*rec) && !isAxisAligned(*rec)) { 2309da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com rec->fMaskFormat = SkMask::kA8_Format; 2310da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com } 23119181aa84aa288d2bc3ab079b6b40a79ac87d8807reed@google.com#endif 2312754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com 23130da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.com if (!fCanBeLCD && isLCD(*rec)) { 2314cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com rec->fMaskFormat = SkMask::kA8_Format; 2315cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com rec->fFlags &= ~SkScalerContext::kGenA8FromLCD_Flag; 2316754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } 2317754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com} 2318070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.com 2319070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.com/////////////////////////////////////////////////////////////////////////////// 2320070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.com 2321070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.com#include "SkFontMgr.h" 2322484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com#include "SkDataTable.h" 2323484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2324a980269c2498836101146adc729ef780fb89824ebungeman@google.comstatic bool valid_logfont_for_enum(const LOGFONT& lf) { 2325a980269c2498836101146adc729ef780fb89824ebungeman@google.com // TODO: Vector FON is unsupported and should not be listed. 2326a980269c2498836101146adc729ef780fb89824ebungeman@google.com return 2327a980269c2498836101146adc729ef780fb89824ebungeman@google.com // Ignore implicit vertical variants. 2328a980269c2498836101146adc729ef780fb89824ebungeman@google.com lf.lfFaceName[0] && lf.lfFaceName[0] != '@' 2329a980269c2498836101146adc729ef780fb89824ebungeman@google.com 2330a980269c2498836101146adc729ef780fb89824ebungeman@google.com // DEFAULT_CHARSET is used to get all fonts, but also implies all 2331a980269c2498836101146adc729ef780fb89824ebungeman@google.com // character sets. Filter assuming all fonts support ANSI_CHARSET. 2332a980269c2498836101146adc729ef780fb89824ebungeman@google.com && ANSI_CHARSET == lf.lfCharSet 2333a980269c2498836101146adc729ef780fb89824ebungeman@google.com ; 2334a980269c2498836101146adc729ef780fb89824ebungeman@google.com} 2335a980269c2498836101146adc729ef780fb89824ebungeman@google.com 2336a980269c2498836101146adc729ef780fb89824ebungeman@google.com/** An EnumFontFamExProc implementation which interprets builderParam as 2337a980269c2498836101146adc729ef780fb89824ebungeman@google.com * an SkTDArray<ENUMLOGFONTEX>* and appends logfonts which 2338a980269c2498836101146adc729ef780fb89824ebungeman@google.com * pass the valid_logfont_for_enum predicate. 2339a980269c2498836101146adc729ef780fb89824ebungeman@google.com */ 2340a980269c2498836101146adc729ef780fb89824ebungeman@google.comstatic int CALLBACK enum_family_proc(const LOGFONT* lf, const TEXTMETRIC*, 2341a980269c2498836101146adc729ef780fb89824ebungeman@google.com DWORD fontType, LPARAM builderParam) { 2342a980269c2498836101146adc729ef780fb89824ebungeman@google.com if (valid_logfont_for_enum(*lf)) { 2343a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com SkTDArray<ENUMLOGFONTEX>* array = (SkTDArray<ENUMLOGFONTEX>*)builderParam; 2344a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com *array->append() = *(ENUMLOGFONTEX*)lf; 2345484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2346484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return 1; // non-zero means continue 2347484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com} 2348484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2349484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comclass SkFontStyleSetGDI : public SkFontStyleSet { 2350484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.compublic: 2351a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com SkFontStyleSetGDI(const TCHAR familyName[]) { 2352a980269c2498836101146adc729ef780fb89824ebungeman@google.com LOGFONT lf; 2353a980269c2498836101146adc729ef780fb89824ebungeman@google.com sk_bzero(&lf, sizeof(lf)); 2354a980269c2498836101146adc729ef780fb89824ebungeman@google.com lf.lfCharSet = DEFAULT_CHARSET; 2355a980269c2498836101146adc729ef780fb89824ebungeman@google.com _tcscpy_s(lf.lfFaceName, familyName); 2356a980269c2498836101146adc729ef780fb89824ebungeman@google.com 235796fcdcc219d2a0d3579719b84b28bede76efba64halcanary HDC hdc = ::CreateCompatibleDC(nullptr); 2358a980269c2498836101146adc729ef780fb89824ebungeman@google.com ::EnumFontFamiliesEx(hdc, &lf, enum_family_proc, (LPARAM)&fArray, 0); 2359484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ::DeleteDC(hdc); 2360484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2361484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 236236352bf5e38f45a70ee4f4fc132a38048d38206dmtklein int count() override { 2363484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return fArray.count(); 2364484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2365484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 236636352bf5e38f45a70ee4f4fc132a38048d38206dmtklein void getStyle(int index, SkFontStyle* fs, SkString* styleName) override { 2367484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com if (fs) { 2368a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungeman *fs = get_style(fArray[index].elfLogFont); 2369a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com } 2370a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com if (styleName) { 2371a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com const ENUMLOGFONTEX& ref = fArray[index]; 2372a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com // For some reason, ENUMLOGFONTEX and LOGFONT disagree on their type in the 2373a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com // non-unicode version. 2374a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com // ENUMLOGFONTEX uses BYTE 2375a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com // LOGFONT uses CHAR 2376a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com // Here we assert they that the style name is logically the same (size) as 2377a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com // a TCHAR, so we can use the same converter function. 2378a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com SkASSERT(sizeof(TCHAR) == sizeof(ref.elfStyle[0])); 2379a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com tchar_to_skstring((const TCHAR*)ref.elfStyle, styleName); 2380484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2381484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2382484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 238336352bf5e38f45a70ee4f4fc132a38048d38206dmtklein SkTypeface* createTypeface(int index) override { 2384a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com return SkCreateTypefaceFromLOGFONT(fArray[index].elfLogFont); 2385484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2386484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 238736352bf5e38f45a70ee4f4fc132a38048d38206dmtklein SkTypeface* matchStyle(const SkFontStyle& pattern) override { 2388147ea2fb7ad9adeeb52fe5549f7ba20953296f6fbungeman return this->matchStyleCSS3(pattern); 2389484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2390484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2391484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comprivate: 2392a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com SkTDArray<ENUMLOGFONTEX> fArray; 2393484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com}; 2394484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2395484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comclass SkFontMgrGDI : public SkFontMgr { 2396a980269c2498836101146adc729ef780fb89824ebungeman@google.compublic: 2397a980269c2498836101146adc729ef780fb89824ebungeman@google.com SkFontMgrGDI() { 2398484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com LOGFONT lf; 2399484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com sk_bzero(&lf, sizeof(lf)); 2400484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com lf.lfCharSet = DEFAULT_CHARSET; 2401484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 240296fcdcc219d2a0d3579719b84b28bede76efba64halcanary HDC hdc = ::CreateCompatibleDC(nullptr); 2403484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ::EnumFontFamiliesEx(hdc, &lf, enum_family_proc, (LPARAM)&fLogFontArray, 0); 2404484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ::DeleteDC(hdc); 2405484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2406484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2407484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comprotected: 240836352bf5e38f45a70ee4f4fc132a38048d38206dmtklein int onCountFamilies() const override { 2409484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return fLogFontArray.count(); 2410484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2411484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 241236352bf5e38f45a70ee4f4fc132a38048d38206dmtklein void onGetFamilyName(int index, SkString* familyName) const override { 2413484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com SkASSERT((unsigned)index < (unsigned)fLogFontArray.count()); 2414a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com tchar_to_skstring(fLogFontArray[index].elfLogFont.lfFaceName, familyName); 2415484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2416484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 241736352bf5e38f45a70ee4f4fc132a38048d38206dmtklein SkFontStyleSet* onCreateStyleSet(int index) const override { 2418484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com SkASSERT((unsigned)index < (unsigned)fLogFontArray.count()); 2419385fe4d4b62d7d1dd76116dd570df3290a2f487bhalcanary return new SkFontStyleSetGDI(fLogFontArray[index].elfLogFont.lfFaceName); 2420484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2421484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 242236352bf5e38f45a70ee4f4fc132a38048d38206dmtklein SkFontStyleSet* onMatchFamily(const char familyName[]) const override { 242396fcdcc219d2a0d3579719b84b28bede76efba64halcanary if (nullptr == familyName) { 2424484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com familyName = ""; // do we need this check??? 2425484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2426484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com LOGFONT lf; 2427484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com logfont_for_name(familyName, &lf); 2428385fe4d4b62d7d1dd76116dd570df3290a2f487bhalcanary return new SkFontStyleSetGDI(lf.lfFaceName); 2429484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2430484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2431484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual SkTypeface* onMatchFamilyStyle(const char familyName[], 243236352bf5e38f45a70ee4f4fc132a38048d38206dmtklein const SkFontStyle& fontstyle) const override { 2433437eea160b2f605d9074106891288e85baaecfefreed@google.com // could be in base impl 243467b39de70fb5d10caebfc75f418754186e5226c3Hal Canary sk_sp<SkFontStyleSet> sset(this->matchFamily(familyName)); 2435484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return sset->matchStyle(fontstyle); 2436484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2437484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 243833068c19f1b8c18f000c18935ad11f1082534b5adjsollen virtual SkTypeface* onMatchFamilyStyleCharacter(const char familyName[], const SkFontStyle&, 243933068c19f1b8c18f000c18935ad11f1082534b5adjsollen const char* bcp47[], int bcp47Count, 244036352bf5e38f45a70ee4f4fc132a38048d38206dmtklein SkUnichar character) const override { 244196fcdcc219d2a0d3579719b84b28bede76efba64halcanary return nullptr; 244233068c19f1b8c18f000c18935ad11f1082534b5adjsollen } 244333068c19f1b8c18f000c18935ad11f1082534b5adjsollen 2444484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual SkTypeface* onMatchFaceStyle(const SkTypeface* familyMember, 244536352bf5e38f45a70ee4f4fc132a38048d38206dmtklein const SkFontStyle& fontstyle) const override { 2446437eea160b2f605d9074106891288e85baaecfefreed@google.com // could be in base impl 2447484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com SkString familyName; 2448484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ((LogFontTypeface*)familyMember)->getFamilyName(&familyName); 2449484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return this->matchFamilyStyle(familyName.c_str(), fontstyle); 2450484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2451484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2452592273965a7fc7fc403252e420d15f6555b8f25dMike Reed sk_sp<SkTypeface> onMakeFromStreamIndex(std::unique_ptr<SkStreamAsset> stream, 2453592273965a7fc7fc403252e420d15f6555b8f25dMike Reed int ttcIndex) const override { 2454fc497343cbcbd526f77da913ae2feca0e1b1b866Ben Wagner if (ttcIndex != 0) { 2455fc497343cbcbd526f77da913ae2feca0e1b1b866Ben Wagner return nullptr; 2456fc497343cbcbd526f77da913ae2feca0e1b1b866Ben Wagner } 2457592273965a7fc7fc403252e420d15f6555b8f25dMike Reed return create_from_stream(std::move(stream)); 2458484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2459437eea160b2f605d9074106891288e85baaecfefreed@google.com 2460592273965a7fc7fc403252e420d15f6555b8f25dMike Reed sk_sp<SkTypeface> onMakeFromData(sk_sp<SkData> data, int ttcIndex) const override { 2461437eea160b2f605d9074106891288e85baaecfefreed@google.com // could be in base impl 2462592273965a7fc7fc403252e420d15f6555b8f25dMike Reed return this->makeFromStream(std::unique_ptr<SkStreamAsset>(new SkMemoryStream(std::move(data))), 2463592273965a7fc7fc403252e420d15f6555b8f25dMike Reed ttcIndex); 2464484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2465437eea160b2f605d9074106891288e85baaecfefreed@google.com 2466592273965a7fc7fc403252e420d15f6555b8f25dMike Reed sk_sp<SkTypeface> onMakeFromFile(const char path[], int ttcIndex) const override { 2467437eea160b2f605d9074106891288e85baaecfefreed@google.com // could be in base impl 2468592273965a7fc7fc403252e420d15f6555b8f25dMike Reed auto stream = SkStream::MakeFromFile(path); 2469592273965a7fc7fc403252e420d15f6555b8f25dMike Reed return stream ? this->makeFromStream(std::move(stream), ttcIndex) : nullptr; 2470484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2471484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2472592273965a7fc7fc403252e420d15f6555b8f25dMike Reed sk_sp<SkTypeface> onLegacyMakeTypeface(const char familyName[], SkFontStyle style) const override { 2473f7159bba8efc13f6b3a9a86e92b48451b6aa8073bungeman@google.com LOGFONT lf; 247496fcdcc219d2a0d3579719b84b28bede76efba64halcanary if (nullptr == familyName) { 2475f7159bba8efc13f6b3a9a86e92b48451b6aa8073bungeman@google.com lf = get_default_font(); 2476f7159bba8efc13f6b3a9a86e92b48451b6aa8073bungeman@google.com } else { 2477f7159bba8efc13f6b3a9a86e92b48451b6aa8073bungeman@google.com logfont_for_name(familyName, &lf); 2478f7159bba8efc13f6b3a9a86e92b48451b6aa8073bungeman@google.com } 2479a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungeman 248011a77c6e0634e2feb6fe4e74806db2fdd2a799ecbungeman lf.lfWeight = style.weight(); 2481b4bb7d825566042ed64697be49457dbac060e6c4bungeman lf.lfItalic = style.slant() == SkFontStyle::kUpright_Slant ? FALSE : TRUE; 2482592273965a7fc7fc403252e420d15f6555b8f25dMike Reed return sk_sp<SkTypeface>(SkCreateTypefaceFromLOGFONT(lf)); 248330ddd615c447fed73286151b463af20d309c85f1reed@google.com } 248430ddd615c447fed73286151b463af20d309c85f1reed@google.com 2485484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comprivate: 2486a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com SkTDArray<ENUMLOGFONTEX> fLogFontArray; 2487484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com}; 2488070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.com 248930ddd615c447fed73286151b463af20d309c85f1reed@google.com/////////////////////////////////////////////////////////////////////////////// 249030ddd615c447fed73286151b463af20d309c85f1reed@google.com 24913546ff10c2e1e91f5afe1efaab4e5e14f71689d1Ben Wagnersk_sp<SkFontMgr> SkFontMgr_New_GDI() { return sk_make_sp<SkFontMgrGDI>(); } 24921ee76510f5dbf632d30975fc3509ef4f609156d2mtklein 24931ee76510f5dbf632d30975fc3509ef4f609156d2mtklein#endif//defined(SK_BUILD_FOR_WIN32) 2494