SkFontHost_win.cpp revision b8113780c3cfed640016b263194b7f1531d43312
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" 131bfe01d06b896eca94c80d9af9a6bb30216b5e42bungeman@google.com#include "SkColorPriv.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" 1997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com#include "SkMaskGamma.h" 20d3fbd34099a530b5415c95b1f2f8149ac417b9b3bungeman@google.com#include "SkMatrix22.h" 217bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com#include "SkOTTable_maxp.h" 22a980269c2498836101146adc729ef780fb89824ebungeman@google.com#include "SkOTTable_name.h" 23a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include "SkOTUtils.h" 2427889877c0e3c909dd4afd7b5e7b1d58cbf61ae6reed@google.com#include "SkPath.h" 25b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com#include "SkSFNTHeader.h" 26ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkStream.h" 27a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include "SkString.h" 2805a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com#include "SkTemplates.h" 29ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkTypeface_win.h" 3059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com#include "SkTypefaceCache.h" 31ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkUtils.h" 32ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 33a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include "SkTypes.h" 34a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include <tchar.h> 35a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include <usp10.h> 36a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include <objbase.h> 37ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 38f210f505ffffccc15ae5e91f8ccb9763ba7fc152reed@google.comstatic void (*gEnsureLOGFONTAccessibleProc)(const LOGFONT&); 39f210f505ffffccc15ae5e91f8ccb9763ba7fc152reed@google.com 40f210f505ffffccc15ae5e91f8ccb9763ba7fc152reed@google.comvoid SkTypeface_SetEnsureLOGFONTAccessibleProc(void (*proc)(const LOGFONT&)) { 41f210f505ffffccc15ae5e91f8ccb9763ba7fc152reed@google.com gEnsureLOGFONTAccessibleProc = proc; 42f210f505ffffccc15ae5e91f8ccb9763ba7fc152reed@google.com} 43f210f505ffffccc15ae5e91f8ccb9763ba7fc152reed@google.com 44055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.comstatic void call_ensure_accessible(const LOGFONT& lf) { 45055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com if (gEnsureLOGFONTAccessibleProc) { 46055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com gEnsureLOGFONTAccessibleProc(lf); 47055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com } 48055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com} 49055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com 50055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com/////////////////////////////////////////////////////////////////////////////// 51055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com 526f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com// always packed xxRRGGBB 536f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.comtypedef uint32_t SkGdiRGB; 546f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com 55a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com// define this in your Makefile or .gyp to enforce AA requests 56a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com// which GDI ignores at small sizes. This flag guarantees AA 57a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com// for rotated text, regardless of GDI's notions. 58a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com//#define SK_ENFORCE_ROTATED_TEXT_AA_ON_WINDOWS 59a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 6082a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.comstatic bool isLCD(const SkScalerContext::Rec& rec) { 61d54d3fc82456f8789b3e4dff40faeb7b670bcf4breed return SkMask::kLCD16_Format == rec.fMaskFormat; 6282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com} 6382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 64a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.comstatic bool bothZero(SkScalar a, SkScalar b) { 65a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com return 0 == a && 0 == b; 66a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com} 67a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 68a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com// returns false if there is any non-90-rotation or skew 69a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.comstatic bool isAxisAligned(const SkScalerContext::Rec& rec) { 70a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com return 0 == rec.fPreSkewX && 71a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com (bothZero(rec.fPost2x2[0][1], rec.fPost2x2[1][0]) || 72a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com bothZero(rec.fPost2x2[0][0], rec.fPost2x2[1][1])); 73a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com} 74a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 75a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.comstatic bool needToRenderWithSkia(const SkScalerContext::Rec& rec) { 76a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com#ifdef SK_ENFORCE_ROTATED_TEXT_AA_ON_WINDOWS 77a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // What we really want to catch is when GDI will ignore the AA request and give 78a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // us BW instead. Smallish rotated text is one heuristic, so this code is just 79a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // an approximation. We shouldn't need to do this for larger sizes, but at those 80a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // sizes, the quality difference gets less and less between our general 81a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // scanconverter and GDI's. 82a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com if (SkMask::kA8_Format == rec.fMaskFormat && !isAxisAligned(rec)) { 83a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com return true; 84a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com } 85a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com#endif 860abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return rec.getHinting() == SkPaint::kNo_Hinting || rec.getHinting() == SkPaint::kSlight_Hinting; 87a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com} 88a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 89a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.comstatic void tchar_to_skstring(const TCHAR t[], SkString* s) { 90484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com#ifdef UNICODE 9196fcdcc219d2a0d3579719b84b28bede76efba64halcanary size_t sSize = WideCharToMultiByte(CP_UTF8, 0, t, -1, nullptr, 0, nullptr, nullptr); 92484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com s->resize(sSize); 9396fcdcc219d2a0d3579719b84b28bede76efba64halcanary WideCharToMultiByte(CP_UTF8, 0, t, -1, s->writable_str(), sSize, nullptr, nullptr); 94484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com#else 95484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com s->set(t); 96484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com#endif 97484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com} 98484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 99a980269c2498836101146adc729ef780fb89824ebungeman@google.comstatic void dcfontname_to_skstring(HDC deviceContext, const LOGFONT& lf, SkString* familyName) { 100a980269c2498836101146adc729ef780fb89824ebungeman@google.com int fontNameLen; //length of fontName in TCHARS. 10196fcdcc219d2a0d3579719b84b28bede76efba64halcanary if (0 == (fontNameLen = GetTextFace(deviceContext, 0, nullptr))) { 102a980269c2498836101146adc729ef780fb89824ebungeman@google.com call_ensure_accessible(lf); 10396fcdcc219d2a0d3579719b84b28bede76efba64halcanary if (0 == (fontNameLen = GetTextFace(deviceContext, 0, nullptr))) { 104a980269c2498836101146adc729ef780fb89824ebungeman@google.com fontNameLen = 0; 105a980269c2498836101146adc729ef780fb89824ebungeman@google.com } 106a980269c2498836101146adc729ef780fb89824ebungeman@google.com } 107a980269c2498836101146adc729ef780fb89824ebungeman@google.com 108a980269c2498836101146adc729ef780fb89824ebungeman@google.com SkAutoSTArray<LF_FULLFACESIZE, TCHAR> fontName(fontNameLen+1); 109a980269c2498836101146adc729ef780fb89824ebungeman@google.com if (0 == GetTextFace(deviceContext, fontNameLen, fontName.get())) { 110a980269c2498836101146adc729ef780fb89824ebungeman@google.com call_ensure_accessible(lf); 111a980269c2498836101146adc729ef780fb89824ebungeman@google.com if (0 == GetTextFace(deviceContext, fontNameLen, fontName.get())) { 112a980269c2498836101146adc729ef780fb89824ebungeman@google.com fontName[0] = 0; 113a980269c2498836101146adc729ef780fb89824ebungeman@google.com } 114a980269c2498836101146adc729ef780fb89824ebungeman@google.com } 115a980269c2498836101146adc729ef780fb89824ebungeman@google.com 116a980269c2498836101146adc729ef780fb89824ebungeman@google.com tchar_to_skstring(fontName.get(), familyName); 117a980269c2498836101146adc729ef780fb89824ebungeman@google.com} 118a980269c2498836101146adc729ef780fb89824ebungeman@google.com 119ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic void make_canonical(LOGFONT* lf) { 12053cbb0baac09e60e7633c15301a29a83afb1a8debungeman@google.com lf->lfHeight = -64; 12159f093d5d832a83b409879de287745e99f75ebfebungeman lf->lfWidth = 0; // lfWidth is related to lfHeight, not to the OS/2::usWidthClass. 12259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf->lfQuality = CLEARTYPE_QUALITY;//PROOF_QUALITY; 12359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf->lfCharSet = DEFAULT_CHARSET; 12482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com// lf->lfClipPrecision = 64; 12559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com} 12659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 127a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungemanstatic SkFontStyle get_style(const LOGFONT& lf) { 128a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungeman return SkFontStyle(lf.lfWeight, 12959f093d5d832a83b409879de287745e99f75ebfebungeman SkFontStyle::kNormal_Width, 130a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungeman lf.lfItalic ? SkFontStyle::kItalic_Slant : SkFontStyle::kUpright_Slant); 131ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 132ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 133ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic inline FIXED SkFixedToFIXED(SkFixed x) { 134ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return *(FIXED*)(&x); 135ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 136a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.comstatic inline SkFixed SkFIXEDToFixed(FIXED x) { 137a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com return *(SkFixed*)(&x); 138a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com} 139ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 140ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic inline FIXED SkScalarToFIXED(SkScalar x) { 141ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkFixedToFIXED(SkScalarToFixed(x)); 142ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 143ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1444732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.comstatic inline SkScalar SkFIXEDToScalar(FIXED x) { 1454732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com return SkFixedToScalar(SkFIXEDToFixed(x)); 1464732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com} 1474732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com 1487bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.comstatic unsigned calculateGlyphCount(HDC hdc, const LOGFONT& lf) { 1497bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com TEXTMETRIC textMetric; 1507bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com if (0 == GetTextMetrics(hdc, &textMetric)) { 1517bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com textMetric.tmPitchAndFamily = TMPF_VECTOR; 1527bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com call_ensure_accessible(lf); 1537bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com GetTextMetrics(hdc, &textMetric); 1547bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com } 1557bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 1567bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com if (!(textMetric.tmPitchAndFamily & TMPF_VECTOR)) { 1577bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com return textMetric.tmLastChar; 1587bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com } 1597bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 160ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // The 'maxp' table stores the number of glyphs at offset 4, in 2 bytes. 161ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com uint16_t glyphs; 1627bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com if (GDI_ERROR != GetFontData(hdc, SkOTTableMaximumProfile::TAG, 4, &glyphs, sizeof(glyphs))) { 163ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkEndian_SwapBE16(glyphs); 164ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1655aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org 166ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Binary search for glyph count. 167ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com static const MAT2 mat2 = {{0, 1}, {0, 0}, {0, 0}, {0, 1}}; 168ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int32_t max = SK_MaxU16 + 1; 169ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int32_t min = 0; 170ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com GLYPHMETRICS gm; 171ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com while (min < max) { 172ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int32_t mid = min + ((max - min) / 2); 173ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (GetGlyphOutlineW(hdc, mid, GGO_METRICS | GGO_GLYPH_INDEX, &gm, 0, 17496fcdcc219d2a0d3579719b84b28bede76efba64halcanary nullptr, &mat2) == GDI_ERROR) { 175ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com max = mid; 176ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 177ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com min = mid + 1; 178ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 179ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 180ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(min == max); 181ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return min; 182ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 183ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1847bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.comstatic unsigned calculateUPEM(HDC hdc, const LOGFONT& lf) { 1857bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com TEXTMETRIC textMetric; 1867bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com if (0 == GetTextMetrics(hdc, &textMetric)) { 1877bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com textMetric.tmPitchAndFamily = TMPF_VECTOR; 1887bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com call_ensure_accessible(lf); 1897bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com GetTextMetrics(hdc, &textMetric); 1907bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com } 1917bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 1927bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com if (!(textMetric.tmPitchAndFamily & TMPF_VECTOR)) { 1937bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com return textMetric.tmMaxCharWidth; 1947bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com } 1957bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 1967bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com OUTLINETEXTMETRIC otm; 1977bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com unsigned int otmRet = GetOutlineTextMetrics(hdc, sizeof(otm), &otm); 1987bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com if (0 == otmRet) { 1997bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com call_ensure_accessible(lf); 2007bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com otmRet = GetOutlineTextMetrics(hdc, sizeof(otm), &otm); 2017bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com } 2027bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 2037bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com return (0 == otmRet) ? 0 : otm.otmEMSquare; 2047bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com} 2057bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 206ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comclass LogFontTypeface : public SkTypeface { 207ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.compublic: 208a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungeman LogFontTypeface(const SkFontStyle& style, const LOGFONT& lf, bool serializeAsStream) 209e3aea10428d1597838fd563c92340beaf969a9b4bungeman : SkTypeface(style, false) 210a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungeman , fLogFont(lf) 211a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungeman , fSerializeAsStream(serializeAsStream) 212a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungeman { 213cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com HFONT font = CreateFontIndirect(&lf); 214cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com 21596fcdcc219d2a0d3579719b84b28bede76efba64halcanary HDC deviceContext = ::CreateCompatibleDC(nullptr); 216cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com HFONT savefont = (HFONT)SelectObject(deviceContext, font); 217cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com 218cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com TEXTMETRIC textMetric; 219cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com if (0 == GetTextMetrics(deviceContext, &textMetric)) { 220055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com call_ensure_accessible(lf); 221cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com if (0 == GetTextMetrics(deviceContext, &textMetric)) { 222cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com textMetric.tmPitchAndFamily = TMPF_TRUETYPE; 223cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com } 224cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com } 225cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com if (deviceContext) { 226cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com ::SelectObject(deviceContext, savefont); 227cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com ::DeleteDC(deviceContext); 228cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com } 229cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com if (font) { 230cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com ::DeleteObject(font); 231cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com } 232cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com 233fe74765f0d302669ae49e68074492bdfe0ce6e6fbungeman@google.com // The fixed pitch bit is set if the font is *not* fixed pitch. 234fe74765f0d302669ae49e68074492bdfe0ce6e6fbungeman@google.com this->setIsFixedPitch((textMetric.tmPitchAndFamily & TMPF_FIXED_PITCH) == 0); 2356e45bda29edef867468cbdd7c062d0d99e884656bungeman this->setFontStyle(SkFontStyle(textMetric.tmWeight, style.width(), style.slant())); 236fe74765f0d302669ae49e68074492bdfe0ce6e6fbungeman@google.com 237cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com // Used a logfont on a memory context, should never get a device font. 238cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com // Therefore all TMPF_DEVICE will be PostScript (cubic) fonts. 2396e45bda29edef867468cbdd7c062d0d99e884656bungeman // If the font has cubic outlines, it will not be rendered with ClearType. 240cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com fCanBeLCD = !((textMetric.tmPitchAndFamily & TMPF_VECTOR) && 241cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com (textMetric.tmPitchAndFamily & TMPF_DEVICE)); 242cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com } 243ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 24459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LOGFONT fLogFont; 245e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com bool fSerializeAsStream; 246cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com bool fCanBeLCD; 247ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 24859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com static LogFontTypeface* Create(const LOGFONT& lf) { 249a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungeman return new LogFontTypeface(get_style(lf), lf, false); 250ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 2510da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.com 252055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com static void EnsureAccessible(const SkTypeface* face) { 253055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com call_ensure_accessible(static_cast<const LogFontTypeface*>(face)->fLogFont); 254055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com } 255055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com 2560da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.comprotected: 25736352bf5e38f45a70ee4f4fc132a38048d38206dmtklein SkStreamAsset* onOpenStream(int* ttcIndex) const override; 258a9322c2d86aaef1085c267dfc43cf0747f170a86reed SkScalerContext* onCreateScalerContext(const SkScalerContextEffects&, 259a9322c2d86aaef1085c267dfc43cf0747f170a86reed const SkDescriptor*) const override; 26036352bf5e38f45a70ee4f4fc132a38048d38206dmtklein void onFilterRec(SkScalerContextRec*) const override; 26139a9a5069b25aa8b9529118cfd0ece5f412fb56breed SkAdvancedTypefaceMetrics* onGetAdvancedTypefaceMetrics( 26239a9a5069b25aa8b9529118cfd0ece5f412fb56breed PerGlyphInfo, const uint32_t*, uint32_t) const override; 26336352bf5e38f45a70ee4f4fc132a38048d38206dmtklein void onGetFontDescriptor(SkFontDescriptor*, bool*) const override; 2643c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com virtual int onCharsToGlyphs(const void* chars, Encoding encoding, 26536352bf5e38f45a70ee4f4fc132a38048d38206dmtklein 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; 27036352bf5e38f45a70ee4f4fc132a38048d38206dmtklein int onGetTableTags(SkFontTableTag tags[]) const override; 271b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com virtual size_t onGetTableData(SkFontTableTag, size_t offset, 27236352bf5e38f45a70ee4f4fc132a38048d38206dmtklein size_t length, void* data) const override; 273ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com}; 274ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 275a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comclass FontMemResourceTypeface : public LogFontTypeface { 276a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.compublic: 277a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com /** 278a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com * The created FontMemResourceTypeface takes ownership of fontMemResource. 279a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 280a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com static FontMemResourceTypeface* Create(const LOGFONT& lf, HANDLE fontMemResource) { 281a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungeman return new FontMemResourceTypeface(get_style(lf), lf, fontMemResource); 282a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 283a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 284a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comprotected: 28536352bf5e38f45a70ee4f4fc132a38048d38206dmtklein void weak_dispose() const override { 286a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com RemoveFontMemResourceEx(fFontMemResource); 287a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com //SkTypefaceCache::Remove(this); 288a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com INHERITED::weak_dispose(); 289a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 290a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 291a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comprivate: 29272cf4fcafa54cfa04c5ec7cb8eaa3acb144712ddbungeman@google.com /** 29372cf4fcafa54cfa04c5ec7cb8eaa3acb144712ddbungeman@google.com * Takes ownership of fontMemResource. 29472cf4fcafa54cfa04c5ec7cb8eaa3acb144712ddbungeman@google.com */ 295a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungeman FontMemResourceTypeface(const SkFontStyle& style, const LOGFONT& lf, HANDLE fontMemResource) 296a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungeman : LogFontTypeface(style, lf, true), fFontMemResource(fontMemResource) 297a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungeman { } 29872cf4fcafa54cfa04c5ec7cb8eaa3acb144712ddbungeman@google.com 29972cf4fcafa54cfa04c5ec7cb8eaa3acb144712ddbungeman@google.com HANDLE fFontMemResource; 30072cf4fcafa54cfa04c5ec7cb8eaa3acb144712ddbungeman@google.com 301a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com typedef LogFontTypeface INHERITED; 302a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com}; 303a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 304ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic const LOGFONT& get_default_font() { 305ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com static LOGFONT gDefaultFont; 306ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return gDefaultFont; 307ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 308ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 30982a455f0e9a7a50a399a58be906b48c24aeec056bungemanstatic bool FindByLogFont(SkTypeface* face, void* ctx) { 310a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com LogFontTypeface* lface = static_cast<LogFontTypeface*>(face); 31159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com const LOGFONT* lf = reinterpret_cast<const LOGFONT*>(ctx); 312ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 31382a455f0e9a7a50a399a58be906b48c24aeec056bungeman return !memcmp(&lface->fLogFont, lf, sizeof(LOGFONT)); 31459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com} 31559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 31659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com/** 31759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com * This guy is public. It first searches the cache, and if a match is not found, 31859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com * it creates a new face. 31959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com */ 32059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.comSkTypeface* SkCreateTypefaceFromLOGFONT(const LOGFONT& origLF) { 32159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LOGFONT lf = origLF; 32259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com make_canonical(&lf); 323ee51d1a6e43615ae640410013c36d2d9873e6aa5bungeman@google.com SkTypeface* face = SkTypefaceCache::FindByProcAndRef(FindByLogFont, &lf); 32496fcdcc219d2a0d3579719b84b28bede76efba64halcanary if (nullptr == face) { 32559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com face = LogFontTypeface::Create(lf); 32682a455f0e9a7a50a399a58be906b48c24aeec056bungeman SkTypefaceCache::Add(face); 32759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } 32859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com return face; 329ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 330ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 331db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com/** 332a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com * The created SkTypeface takes ownership of fontMemResource. 333a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 334a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comSkTypeface* SkCreateFontMemResourceTypefaceFromLOGFONT(const LOGFONT& origLF, HANDLE fontMemResource) { 335a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com LOGFONT lf = origLF; 336a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com make_canonical(&lf); 33760b6e9dbbc492f987a5b887dff60aec107ab70d0mtklein // We'll never get a cache hit, so no point in putting this in SkTypefaceCache. 33860b6e9dbbc492f987a5b887dff60aec107ab70d0mtklein return FontMemResourceTypeface::Create(lf, fontMemResource); 339a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com} 340a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 341a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 342db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com * This guy is public 343db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com */ 344db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.comvoid SkLOGFONTFromTypeface(const SkTypeface* face, LOGFONT* lf) { 34596fcdcc219d2a0d3579719b84b28bede76efba64halcanary if (nullptr == face) { 346db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com *lf = get_default_font(); 347db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com } else { 348a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com *lf = static_cast<const LogFontTypeface*>(face)->fLogFont; 349db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com } 350db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com} 351db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com 3526744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// Construct Glyph to Unicode table. 3536744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// Unicode code points that require conjugate pairs in utf16 are not 3546744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// supported. 3556744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// TODO(arthurhsu): Add support for conjugate pairs. It looks like that may 3566744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// require parsing the TTF cmap table (platform 4, encoding 12) directly instead 3576744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// of calling GetFontUnicodeRange(). 3586744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.orgstatic void populate_glyph_to_unicode(HDC fontHdc, const unsigned glyphCount, 3596744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkTDArray<SkUnichar>* glyphToUnicode) { 36096fcdcc219d2a0d3579719b84b28bede76efba64halcanary DWORD glyphSetBufferSize = GetFontUnicodeRanges(fontHdc, nullptr); 3616744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org if (!glyphSetBufferSize) { 3626744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org return; 3636744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 3646744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 3656744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkAutoTDeleteArray<BYTE> glyphSetBuffer(new BYTE[glyphSetBufferSize]); 3666744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org GLYPHSET* glyphSet = 3676744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org reinterpret_cast<LPGLYPHSET>(glyphSetBuffer.get()); 3686744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org if (GetFontUnicodeRanges(fontHdc, glyphSet) != glyphSetBufferSize) { 3696744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org return; 3706744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 3716744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 3726744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org glyphToUnicode->setCount(glyphCount); 3736744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org memset(glyphToUnicode->begin(), 0, glyphCount * sizeof(SkUnichar)); 3746744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org for (DWORD i = 0; i < glyphSet->cRanges; ++i) { 3756744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // There is no guarantee that within a Unicode range, the corresponding 3766744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // glyph id in a font file are continuous. So, even if we have ranges, 3776744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // we can't just use the first and last entry of the range to compute 3786744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // result. We need to enumerate them one by one. 3796744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org int count = glyphSet->ranges[i].cGlyphs; 3806744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkAutoTArray<WCHAR> chars(count + 1); 3816744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org chars[count] = 0; // termintate string 3826744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkAutoTArray<WORD> glyph(count); 3836744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org for (USHORT j = 0; j < count; ++j) { 3846744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org chars[j] = glyphSet->ranges[i].wcLow + j; 3856744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 3866744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org GetGlyphIndicesW(fontHdc, chars.get(), count, glyph.get(), 3876744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org GGI_MARK_NONEXISTING_GLYPHS); 3886744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // If the glyph ID is valid, and the glyph is not mapped, then we will 3896744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // fill in the char id into the vector. If the glyph is mapped already, 3906744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // skip it. 3916744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // TODO(arthurhsu): better improve this. e.g. Get all used char ids from 3926744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // font cache, then generate this mapping table from there. It's 3936744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // unlikely to have collisions since glyph reuse happens mostly for 3946744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // different Unicode pages. 3956744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org for (USHORT j = 0; j < count; ++j) { 3966744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org if (glyph[j] != 0xffff && glyph[j] < glyphCount && 3976744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org (*glyphToUnicode)[glyph[j]] == 0) { 3986744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org (*glyphToUnicode)[glyph[j]] = chars[j]; 3996744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 4006744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 4016744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 4026744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org} 4036744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 40499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com////////////////////////////////////////////////////////////////////////////////////// 40599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 40699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.comstatic int alignTo32(int n) { 40799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com return (n + 31) & ~31; 40899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com} 40999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 41099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.comstruct MyBitmapInfo : public BITMAPINFO { 41199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com RGBQUAD fMoreSpaceForColors[1]; 41299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com}; 41399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 41499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.comclass HDCOffscreen { 41599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.compublic: 41699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HDCOffscreen() { 41799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fFont = 0; 41899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fDC = 0; 41999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fBM = 0; 42096fcdcc219d2a0d3579719b84b28bede76efba64halcanary fBits = nullptr; 42199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fWidth = fHeight = 0; 42299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fIsBW = false; 42399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 42499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 42599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com ~HDCOffscreen() { 42699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (fDC) { 42799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com DeleteDC(fDC); 42899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 42999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (fBM) { 43099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com DeleteObject(fBM); 43199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 43299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 43399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 43499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com void init(HFONT font, const XFORM& xform) { 43599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fFont = font; 43699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fXform = xform; 43799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 43899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 43997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const void* draw(const SkGlyph&, bool isBW, size_t* srcRBPtr); 44099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 44199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.comprivate: 44299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HDC fDC; 44399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HBITMAP fBM; 44499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HFONT fFont; 44599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com XFORM fXform; 44699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com void* fBits; // points into fBM 44799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com int fWidth; 44899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com int fHeight; 44999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com bool fIsBW; 45099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com}; 45199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 452754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.comconst void* HDCOffscreen::draw(const SkGlyph& glyph, bool isBW, 45397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com size_t* srcRBPtr) { 45484e22d847fc84727bc220947162363ee1fe068fcreed@google.com // Can we share the scalercontext's fDDC, so we don't need to create 45584e22d847fc84727bc220947162363ee1fe068fcreed@google.com // a separate fDC here? 45699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (0 == fDC) { 45799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fDC = CreateCompatibleDC(0); 45899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (0 == fDC) { 45996fcdcc219d2a0d3579719b84b28bede76efba64halcanary return nullptr; 46099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 46199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SetGraphicsMode(fDC, GM_ADVANCED); 46299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SetBkMode(fDC, TRANSPARENT); 46399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SetTextAlign(fDC, TA_LEFT | TA_BASELINE); 46499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SelectObject(fDC, fFont); 46597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com 46697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com COLORREF color = 0x00FFFFFF; 467b58a639b2fbe919489654bb506efdb024a308a8ebsalomon@google.com SkDEBUGCODE(COLORREF prev =) SetTextColor(fDC, color); 46897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com SkASSERT(prev != CLR_INVALID); 46999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 47099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 47199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (fBM && (fIsBW != isBW || fWidth < glyph.fWidth || fHeight < glyph.fHeight)) { 47299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com DeleteObject(fBM); 47399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fBM = 0; 47499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 475754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com fIsBW = isBW; 47699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 47799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fWidth = SkMax32(fWidth, glyph.fWidth); 47899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fHeight = SkMax32(fHeight, glyph.fHeight); 47999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 48099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com int biWidth = isBW ? alignTo32(fWidth) : fWidth; 48199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 48299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (0 == fBM) { 48399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com MyBitmapInfo info; 48499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com sk_bzero(&info, sizeof(info)); 48599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (isBW) { 48699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com RGBQUAD blackQuad = { 0, 0, 0, 0 }; 48799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com RGBQUAD whiteQuad = { 0xFF, 0xFF, 0xFF, 0 }; 48899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiColors[0] = blackQuad; 48999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiColors[1] = whiteQuad; 49099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 49199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biSize = sizeof(info.bmiHeader); 49299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biWidth = biWidth; 49399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biHeight = fHeight; 49499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biPlanes = 1; 49599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biBitCount = isBW ? 1 : 32; 49699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biCompression = BI_RGB; 49799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (isBW) { 49899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biClrUsed = 2; 49999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 50099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fBM = CreateDIBSection(fDC, &info, DIB_RGB_COLORS, &fBits, 0, 0); 50199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (0 == fBM) { 50296fcdcc219d2a0d3579719b84b28bede76efba64halcanary return nullptr; 50399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 50499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SelectObject(fDC, fBM); 50599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 50699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 50799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com // erase 50899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com size_t srcRB = isBW ? (biWidth >> 3) : (fWidth << 2); 50999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com size_t size = fHeight * srcRB; 51097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com memset(fBits, 0, size); 51199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 51299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com XFORM xform = fXform; 51399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com xform.eDx = (float)-glyph.fLeft; 51499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com xform.eDy = (float)-glyph.fTop; 51599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SetWorldTransform(fDC, &xform); 51699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 51799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com uint16_t glyphID = glyph.getGlyphID(); 51896fcdcc219d2a0d3579719b84b28bede76efba64halcanary BOOL ret = ExtTextOutW(fDC, 0, 0, ETO_GLYPH_INDEX, nullptr, reinterpret_cast<LPCWSTR>(&glyphID), 1, nullptr); 51999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com GdiFlush(); 52039698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (0 == ret) { 52196fcdcc219d2a0d3579719b84b28bede76efba64halcanary return nullptr; 52239698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 52399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com *srcRBPtr = srcRB; 52499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com // offset to the start of the image 52599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com return (const char*)fBits + (fHeight - glyph.fHeight) * srcRB; 52699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com} 52799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 528b8a5c618d2e18d71707ae4dcafbe5153d7ff427freed@google.com////////////////////////////////////////////////////////////////////////////// 5290abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#define BUFFERSIZE (1 << 13) 53059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 53130ddd615c447fed73286151b463af20d309c85f1reed@google.comclass SkScalerContext_GDI : public SkScalerContext { 532ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.compublic: 533a9322c2d86aaef1085c267dfc43cf0747f170a86reed SkScalerContext_GDI(SkTypeface*, const SkScalerContextEffects&, const SkDescriptor* desc); 53430ddd615c447fed73286151b463af20d309c85f1reed@google.com virtual ~SkScalerContext_GDI(); 535ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 53684e22d847fc84727bc220947162363ee1fe068fcreed@google.com // Returns true if the constructor was able to complete all of its 53784e22d847fc84727bc220947162363ee1fe068fcreed@google.com // initializations (which may include calling GDI). 53884e22d847fc84727bc220947162363ee1fe068fcreed@google.com bool isValid() const; 53984e22d847fc84727bc220947162363ee1fe068fcreed@google.com 540ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comprotected: 54136352bf5e38f45a70ee4f4fc132a38048d38206dmtklein unsigned generateGlyphCount() override; 54236352bf5e38f45a70ee4f4fc132a38048d38206dmtklein uint16_t generateCharToGlyph(SkUnichar uni) override; 54336352bf5e38f45a70ee4f4fc132a38048d38206dmtklein void generateAdvance(SkGlyph* glyph) override; 54436352bf5e38f45a70ee4f4fc132a38048d38206dmtklein void generateMetrics(SkGlyph* glyph) override; 54536352bf5e38f45a70ee4f4fc132a38048d38206dmtklein void generateImage(const SkGlyph& glyph) override; 54636352bf5e38f45a70ee4f4fc132a38048d38206dmtklein void generatePath(const SkGlyph& glyph, SkPath* path) override; 54736352bf5e38f45a70ee4f4fc132a38048d38206dmtklein void generateFontMetrics(SkPaint::FontMetrics*) override; 54899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 549ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comprivate: 5500abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com DWORD getGDIGlyphPath(const SkGlyph& glyph, UINT flags, 5510abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkAutoSTMalloc<BUFFERSIZE, uint8_t>* glyphbuf); 5520abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 55399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HDCOffscreen fOffscreen; 5540abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com /** fGsA is the non-rotational part of total matrix without the text height scale. 5550abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com * Used to find the magnitude of advances. 5560abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com */ 5570abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com MAT2 fGsA; 5586a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com /** The total matrix without the textSize. */ 559ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com MAT2 fMat22; 5606a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com /** Scales font to EM size. */ 5616a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com MAT2 fHighResMat22; 562ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HDC fDDC; 563ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT fSavefont; 564ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT fFont; 565ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SCRIPT_CACHE fSC; 566ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int fGlyphCount; 5671dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 5686a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com /** The total matrix which also removes EM scale. */ 5691dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com SkMatrix fHiResMatrix; 5700abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com /** fG_inv is the inverse of the rotational part of the total matrix. 5710abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com * Used to set the direction of advances. 5720abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com */ 5730abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkMatrix fG_inv; 574a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com enum Type { 5754732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com kTrueType_Type, kBitmap_Type, kLine_Type 576a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } fType; 577a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com TEXTMETRIC fTM; 578ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com}; 579ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 580ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic FIXED float2FIXED(float x) { 581ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkFixedToFIXED(SkFloatToFixed(x)); 582ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 583ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 5846b3eacb0dfaeb3374d410c8c041bd39cd066e1eabenjaminwagnerstatic inline float FIXED2float(FIXED x) { 5856b3eacb0dfaeb3374d410c8c041bd39cd066e1eabenjaminwagner return SkFixedToFloat(SkFIXEDToFixed(x)); 5866b3eacb0dfaeb3374d410c8c041bd39cd066e1eabenjaminwagner} 5876b3eacb0dfaeb3374d410c8c041bd39cd066e1eabenjaminwagner 58882a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.comstatic BYTE compute_quality(const SkScalerContext::Rec& rec) { 58982a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com switch (rec.fMaskFormat) { 59082a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com case SkMask::kBW_Format: 59182a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com return NONANTIALIASED_QUALITY; 59282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com case SkMask::kLCD16_Format: 59382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com return CLEARTYPE_QUALITY; 59482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com default: 5958351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com if (rec.fFlags & SkScalerContext::kGenA8FromLCD_Flag) { 5968351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com return CLEARTYPE_QUALITY; 5978351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com } else { 5988351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com return ANTIALIASED_QUALITY; 5998351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com } 60082a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com } 60182a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com} 60282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 60330ddd615c447fed73286151b463af20d309c85f1reed@google.comSkScalerContext_GDI::SkScalerContext_GDI(SkTypeface* rawTypeface, 604a9322c2d86aaef1085c267dfc43cf0747f170a86reed const SkScalerContextEffects& effects, 605a9322c2d86aaef1085c267dfc43cf0747f170a86reed const SkDescriptor* desc) 606a9322c2d86aaef1085c267dfc43cf0747f170a86reed : SkScalerContext(rawTypeface, effects, desc) 607055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com , fDDC(0) 608055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com , fSavefont(0) 60984e22d847fc84727bc220947162363ee1fe068fcreed@google.com , fFont(0) 610055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com , fSC(0) 61105a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com , fGlyphCount(-1) 61205a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com{ 613055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com LogFontTypeface* typeface = reinterpret_cast<LogFontTypeface*>(rawTypeface); 614055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com 61596fcdcc219d2a0d3579719b84b28bede76efba64halcanary fDDC = ::CreateCompatibleDC(nullptr); 61684e22d847fc84727bc220947162363ee1fe068fcreed@google.com if (!fDDC) { 61784e22d847fc84727bc220947162363ee1fe068fcreed@google.com return; 61884e22d847fc84727bc220947162363ee1fe068fcreed@google.com } 6191dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com SetGraphicsMode(fDDC, GM_ADVANCED); 620ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SetBkMode(fDDC, TRANSPARENT); 62127e21fe577211c1c40cbf40d0385b02c69d04522skia.committer@gmail.com 6226f94076da504a9e292c7f6173b039d2692d47c51bungeman // When GDI hinting, remove the entire Y scale from sA and GsA. (Prevents 'linear' metrics.) 6236f94076da504a9e292c7f6173b039d2692d47c51bungeman // When not hinting, remove only the integer Y scale from sA and GsA. (Applied by GDI.) 6245f14c5e038a16c80d50c2f87ae7c8775f977456cbungeman SkScalerContextRec::PreMatrixScale scaleConstraints = 6255f14c5e038a16c80d50c2f87ae7c8775f977456cbungeman (fRec.getHinting() == SkPaint::kNo_Hinting || fRec.getHinting() == SkPaint::kSlight_Hinting) 6265f14c5e038a16c80d50c2f87ae7c8775f977456cbungeman ? SkScalerContextRec::kVerticalInteger_PreMatrixScale 6275f14c5e038a16c80d50c2f87ae7c8775f977456cbungeman : SkScalerContextRec::kVertical_PreMatrixScale; 6285f14c5e038a16c80d50c2f87ae7c8775f977456cbungeman SkVector scale; 6295f14c5e038a16c80d50c2f87ae7c8775f977456cbungeman SkMatrix sA; 6305f14c5e038a16c80d50c2f87ae7c8775f977456cbungeman SkMatrix GsA; 6315f14c5e038a16c80d50c2f87ae7c8775f977456cbungeman SkMatrix A; 6325f14c5e038a16c80d50c2f87ae7c8775f977456cbungeman fRec.computeMatrices(scaleConstraints, &scale, &sA, &GsA, &fG_inv, &A); 6330abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 6340abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fGsA.eM11 = SkScalarToFIXED(GsA.get(SkMatrix::kMScaleX)); 6350abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fGsA.eM12 = SkScalarToFIXED(-GsA.get(SkMatrix::kMSkewY)); // This should be ~0. 6360abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fGsA.eM21 = SkScalarToFIXED(-GsA.get(SkMatrix::kMSkewX)); 6370abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fGsA.eM22 = SkScalarToFIXED(GsA.get(SkMatrix::kMScaleY)); 6380abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 6396f94076da504a9e292c7f6173b039d2692d47c51bungeman // When not hinting, scale was computed with kVerticalInteger, so is already an integer. 6406f94076da504a9e292c7f6173b039d2692d47c51bungeman // The sA and GsA transforms will be used to create 'linear' metrics. 6416f94076da504a9e292c7f6173b039d2692d47c51bungeman 6426f94076da504a9e292c7f6173b039d2692d47c51bungeman // When hinting, scale was computed with kVertical, stating that our port can handle 6436f94076da504a9e292c7f6173b039d2692d47c51bungeman // non-integer scales. This is done so that sA and GsA are computed without any 'residual' 6446f94076da504a9e292c7f6173b039d2692d47c51bungeman // scale in them, preventing 'linear' metrics. However, GDI cannot actually handle non-integer 6456f94076da504a9e292c7f6173b039d2692d47c51bungeman // scales so we need to round in this case. This is fine, since all of the scale has been 6466f94076da504a9e292c7f6173b039d2692d47c51bungeman // removed from sA and GsA, so GDI will be handling the scale completely. 6476f94076da504a9e292c7f6173b039d2692d47c51bungeman SkScalar gdiTextSize = SkScalarRoundToScalar(scale.fY); 6486f94076da504a9e292c7f6173b039d2692d47c51bungeman 6496f94076da504a9e292c7f6173b039d2692d47c51bungeman // GDI will not accept a size of zero, so round the range [0, 1] to 1. 6506f94076da504a9e292c7f6173b039d2692d47c51bungeman // If the size was non-zero, the scale factors will also be non-zero and 1px tall text is drawn. 6516f94076da504a9e292c7f6173b039d2692d47c51bungeman // If the size actually was zero, the scale factors will also be zero, so GDI will draw nothing. 6525f14c5e038a16c80d50c2f87ae7c8775f977456cbungeman if (gdiTextSize == 0) { 6535f14c5e038a16c80d50c2f87ae7c8775f977456cbungeman gdiTextSize = SK_Scalar1; 6545f14c5e038a16c80d50c2f87ae7c8775f977456cbungeman } 655ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 656055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com LOGFONT lf = typeface->fLogFont; 65711ba3199f3edc7883ada4fd941d231f8f4883720bungeman@google.com lf.lfHeight = -SkScalarTruncToInt(gdiTextSize); 65882a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com lf.lfQuality = compute_quality(fRec); 659ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fFont = CreateFontIndirect(&lf); 66084e22d847fc84727bc220947162363ee1fe068fcreed@google.com if (!fFont) { 66184e22d847fc84727bc220947162363ee1fe068fcreed@google.com return; 66284e22d847fc84727bc220947162363ee1fe068fcreed@google.com } 6631dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 664ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fSavefont = (HFONT)SelectObject(fDDC, fFont); 665a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 666a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (0 == GetTextMetrics(fDDC, &fTM)) { 667055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com call_ensure_accessible(lf); 668a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (0 == GetTextMetrics(fDDC, &fTM)) { 669a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fTM.tmPitchAndFamily = TMPF_TRUETYPE; 670a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 671a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 67290b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com 673d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com XFORM xform; 67490b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com if (fTM.tmPitchAndFamily & TMPF_VECTOR) { 6754732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com // Used a logfont on a memory context, should never get a device font. 6764732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com // Therefore all TMPF_DEVICE will be PostScript fonts. 6774732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com 6784732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com // If TMPF_VECTOR is set, one of TMPF_TRUETYPE or TMPF_DEVICE means that 6794732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com // we have an outline font. Otherwise we have a vector FON, which is 6804732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com // scalable, but not an outline font. 6814732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com // This was determined by testing with Type1 PFM/PFB and 6824732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com // OpenTypeCFF OTF, as well as looking at Wine bugs and sources. 6834732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com if (fTM.tmPitchAndFamily & (TMPF_TRUETYPE | TMPF_DEVICE)) { 6844732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com // Truetype or PostScript. 6854732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com fType = SkScalerContext_GDI::kTrueType_Type; 6864732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com } else { 6874732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com // Stroked FON. 6884732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com fType = SkScalerContext_GDI::kLine_Type; 6894732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com } 690a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 691d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // fPost2x2 is column-major, left handed (y down). 692d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // XFORM 2x2 is row-major, left handed (y down). 6930abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com xform.eM11 = SkScalarToFloat(sA.get(SkMatrix::kMScaleX)); 6940abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com xform.eM12 = SkScalarToFloat(sA.get(SkMatrix::kMSkewY)); 6950abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com xform.eM21 = SkScalarToFloat(sA.get(SkMatrix::kMSkewX)); 6960abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com xform.eM22 = SkScalarToFloat(sA.get(SkMatrix::kMScaleY)); 697d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eDx = 0; 698d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eDy = 0; 699d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com 700d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // MAT2 is row major, right handed (y up). 701d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM11 = float2FIXED(xform.eM11); 702d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM12 = float2FIXED(-xform.eM12); 703d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM21 = float2FIXED(-xform.eM21); 704d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM22 = float2FIXED(xform.eM22); 705a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 706a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (needToRenderWithSkia(fRec)) { 707a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com this->forceGenerateImageFromPath(); 708a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 709a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 71011ba3199f3edc7883ada4fd941d231f8f4883720bungeman@google.com // Create a hires matrix if we need linear metrics. 7110abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (this->isSubpixel()) { 7120abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com OUTLINETEXTMETRIC otm; 7130abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com UINT success = GetOutlineTextMetrics(fDDC, sizeof(otm), &otm); 7140abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (0 == success) { 7150abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com call_ensure_accessible(lf); 7160abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com success = GetOutlineTextMetrics(fDDC, sizeof(otm), &otm); 7170abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 7180abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (0 != success) { 71911ba3199f3edc7883ada4fd941d231f8f4883720bungeman@google.com SkScalar upem = SkIntToScalar(otm.otmEMSquare); 7206a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com 72111ba3199f3edc7883ada4fd941d231f8f4883720bungeman@google.com SkScalar gdiTextSizeToEMScale = upem / gdiTextSize; 72211ba3199f3edc7883ada4fd941d231f8f4883720bungeman@google.com fHighResMat22.eM11 = float2FIXED(gdiTextSizeToEMScale); 7236a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com fHighResMat22.eM12 = float2FIXED(0); 7246a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com fHighResMat22.eM21 = float2FIXED(0); 72511ba3199f3edc7883ada4fd941d231f8f4883720bungeman@google.com fHighResMat22.eM22 = float2FIXED(gdiTextSizeToEMScale); 7266a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com 72711ba3199f3edc7883ada4fd941d231f8f4883720bungeman@google.com SkScalar removeEMScale = SkScalarInvert(upem); 7286a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com fHiResMatrix = A; 72911ba3199f3edc7883ada4fd941d231f8f4883720bungeman@google.com fHiResMatrix.preScale(removeEMScale, removeEMScale); 7300abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 7310abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 7320abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 733a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } else { 734a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com // Assume bitmap 73530ddd615c447fed73286151b463af20d309c85f1reed@google.com fType = SkScalerContext_GDI::kBitmap_Type; 736a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 737d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM11 = 1.0f; 738d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM12 = 0.0f; 739d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM21 = 0.0f; 740d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM22 = 1.0f; 741d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eDx = 0.0f; 742d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eDy = 0.0f; 743a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 744d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // fPost2x2 is column-major, left handed (y down). 745d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // MAT2 is row major, right handed (y up). 746a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fMat22.eM11 = SkScalarToFIXED(fRec.fPost2x2[0][0]); 747d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM12 = SkScalarToFIXED(-fRec.fPost2x2[1][0]); 748a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fMat22.eM21 = SkScalarToFIXED(-fRec.fPost2x2[0][1]); 749d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM22 = SkScalarToFIXED(fRec.fPost2x2[1][1]); 750a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com } 75199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 752d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fOffscreen.init(fFont, xform); 753ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 754ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 75530ddd615c447fed73286151b463af20d309c85f1reed@google.comSkScalerContext_GDI::~SkScalerContext_GDI() { 756ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fDDC) { 757ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::SelectObject(fDDC, fSavefont); 758ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::DeleteDC(fDDC); 759ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 760ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fFont) { 761ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::DeleteObject(fFont); 762ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 763ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fSC) { 764ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::ScriptFreeCache(&fSC); 765ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 766ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 767ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 76830ddd615c447fed73286151b463af20d309c85f1reed@google.combool SkScalerContext_GDI::isValid() const { 76984e22d847fc84727bc220947162363ee1fe068fcreed@google.com return fDDC && fFont; 77084e22d847fc84727bc220947162363ee1fe068fcreed@google.com} 77184e22d847fc84727bc220947162363ee1fe068fcreed@google.com 77230ddd615c447fed73286151b463af20d309c85f1reed@google.comunsigned SkScalerContext_GDI::generateGlyphCount() { 773ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fGlyphCount < 0) { 7747bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com fGlyphCount = calculateGlyphCount( 7757bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com fDDC, static_cast<const LogFontTypeface*>(this->getTypeface())->fLogFont); 776ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 777ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return fGlyphCount; 778ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 779ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 78033346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.comuint16_t SkScalerContext_GDI::generateCharToGlyph(SkUnichar utf32) { 781ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com uint16_t index = 0; 78233346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com WCHAR utf16[2]; 783ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // TODO(ctguil): Support characters that generate more than one glyph. 78433346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com if (SkUTF16_FromUnichar(utf32, (uint16_t*)utf16) == 1) { 785ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Type1 fonts fail with uniscribe API. Use GetGlyphIndices for plane 0. 7867bd141dce43ea3405bc60c9c84e6f910b851b079skia.committer@gmail.com 78733346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com /** Real documentation for GetGlyphIndiciesW: 78833346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com * 78933346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com * When GGI_MARK_NONEXISTING_GLYPHS is not specified and a character does not map to a 79033346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com * glyph, then the 'default character's glyph is returned instead. The 'default character' 7914732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com * is available in fTM.tmDefaultChar. FON fonts have a default character, and there exists 7924732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com * a usDefaultChar in the 'OS/2' table, version 2 and later. If there is no 79333346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com * 'default character' specified by the font, then often the first character found is used. 79433346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com * 79533346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com * When GGI_MARK_NONEXISTING_GLYPHS is specified and a character does not map to a glyph, 79633346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com * then the glyph 0xFFFF is used. In Windows XP and earlier, Bitmap/Vector FON usually use 79733346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com * glyph 0x1F instead ('Terminal' appears to be special, returning 0xFFFF). 79833346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com * Type1 PFM/PFB, TT, OT TT, OT CFF all appear to use 0xFFFF, even on XP. 79933346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com */ 80033346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com DWORD result = GetGlyphIndicesW(fDDC, utf16, 1, &index, GGI_MARK_NONEXISTING_GLYPHS); 80133346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com if (result == GDI_ERROR 80233346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com || 0xFFFF == index 8034732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com || (0x1F == index && 8044732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com (fType == SkScalerContext_GDI::kBitmap_Type || 8054732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com fType == SkScalerContext_GDI::kLine_Type) 8064732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com /*&& winVer < Vista */) 8074732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com ) 80833346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com { 80933346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com index = 0; 81033346487cbb64134d7204abe32d9318c1b511aa8bungeman@google.com } 811ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 812ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Use uniscribe to detemine glyph index for non-BMP characters. 81327f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com static const int numWCHAR = 2; 81427f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com static const int maxItems = 2; 81596fcdcc219d2a0d3579719b84b28bede76efba64halcanary // MSDN states that this can be nullptr, but some things don't work then. 81627f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com SCRIPT_CONTROL sc = { 0 }; 81727f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com // Add extra item to SCRIPT_ITEM to work around a bug (now documented). 81827f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com // https://bugzilla.mozilla.org/show_bug.cgi?id=366643 81927f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com SCRIPT_ITEM si[maxItems + 1]; 82027f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com int numItems; 82196fcdcc219d2a0d3579719b84b28bede76efba64halcanary HRZM(ScriptItemize(utf16, numWCHAR, maxItems, &sc, nullptr, si, &numItems), 82227f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com "Could not itemize character."); 82327f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com 82427f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com // Sometimes ScriptShape cannot find a glyph for a non-BMP and returns 2 space glyphs. 82527f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com static const int maxGlyphs = 2; 82627f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com SCRIPT_VISATTR vsa[maxGlyphs]; 82727f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com WORD outGlyphs[maxGlyphs]; 82827f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com WORD logClust[numWCHAR]; 82927f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com int numGlyphs; 83027f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com HRZM(ScriptShape(fDDC, &fSC, utf16, numWCHAR, maxGlyphs, &si[0].a, 83127f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com outGlyphs, logClust, vsa, &numGlyphs), 83227f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com "Could not shape character."); 83327f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com if (1 == numGlyphs) { 83427f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com index = outGlyphs[0]; 83527f74aab32123e6f021359061149966fa4ca5a62bungeman@google.com } 836ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 837ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return index; 838ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 839ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 84030ddd615c447fed73286151b463af20d309c85f1reed@google.comvoid SkScalerContext_GDI::generateAdvance(SkGlyph* glyph) { 841ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com this->generateMetrics(glyph); 842ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 843ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 84430ddd615c447fed73286151b463af20d309c85f1reed@google.comvoid SkScalerContext_GDI::generateMetrics(SkGlyph* glyph) { 845ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(fDDC); 846ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 8474732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com if (fType == SkScalerContext_GDI::kBitmap_Type || fType == SkScalerContext_GDI::kLine_Type) { 848a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com SIZE size; 8491b27704eba15be4e9d1997faac42038493a30be5djsollen WORD glyphs = glyph->getGlyphID(); 850a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (0 == GetTextExtentPointI(fDDC, &glyphs, 1, &size)) { 851a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fWidth = SkToS16(fTM.tmMaxCharWidth); 852a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } else { 853a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fWidth = SkToS16(size.cx); 854a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 855a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fHeight = SkToS16(size.cy); 856a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 857a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fTop = SkToS16(-fTM.tmAscent); 8584732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com // Bitmap FON cannot underhang, but vector FON may. 8594732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com // There appears no means of determining underhang of vector FON. 860a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fLeft = SkToS16(0); 8616b3eacb0dfaeb3374d410c8c041bd39cd066e1eabenjaminwagner glyph->fAdvanceX = glyph->fWidth; 862a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fAdvanceY = 0; 863a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 8644732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com // Vector FON will transform nicely, but bitmap FON do not. 8654732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com if (fType == SkScalerContext_GDI::kLine_Type) { 8664732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com SkRect bounds = SkRect::MakeXYWH(glyph->fLeft, glyph->fTop, 8674732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com glyph->fWidth, glyph->fHeight); 8684732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com SkMatrix m; 8694732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com m.setAll(SkFIXEDToScalar(fMat22.eM11), -SkFIXEDToScalar(fMat22.eM21), 0, 8704732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com -SkFIXEDToScalar(fMat22.eM12), SkFIXEDToScalar(fMat22.eM22), 0, 8713f43f8ab9cd3ba0ea83f5ae0659c21f101dfca7areed 0, 0, 1); 8724732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com m.mapRect(&bounds); 873d02cf2664d0e453a6ec57cddc7f09bfc07fd91dbreed bounds.roundOut(&bounds); 8744732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com glyph->fLeft = SkScalarTruncToInt(bounds.fLeft); 8754732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com glyph->fTop = SkScalarTruncToInt(bounds.fTop); 8764732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com glyph->fWidth = SkScalarTruncToInt(bounds.width()); 8774732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com glyph->fHeight = SkScalarTruncToInt(bounds.height()); 8784732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com } 8794732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com 880d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // Apply matrix to advance. 8816b3eacb0dfaeb3374d410c8c041bd39cd066e1eabenjaminwagner glyph->fAdvanceY = -FIXED2float(fMat22.eM12) * glyph->fAdvanceX; 8826b3eacb0dfaeb3374d410c8c041bd39cd066e1eabenjaminwagner glyph->fAdvanceX *= FIXED2float(fMat22.eM11); 883a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 884a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com return; 885a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 886a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 8871b27704eba15be4e9d1997faac42038493a30be5djsollen UINT glyphId = glyph->getGlyphID(); 888d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com 889ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com GLYPHMETRICS gm; 8901dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com sk_bzero(&gm, sizeof(gm)); 891ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 89296fcdcc219d2a0d3579719b84b28bede76efba64halcanary DWORD status = GetGlyphOutlineW(fDDC, glyphId, GGO_METRICS | GGO_GLYPH_INDEX, &gm, 0, nullptr, &fMat22); 893d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (GDI_ERROR == status) { 894055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com LogFontTypeface::EnsureAccessible(this->getTypeface()); 89596fcdcc219d2a0d3579719b84b28bede76efba64halcanary status = GetGlyphOutlineW(fDDC, glyphId, GGO_METRICS | GGO_GLYPH_INDEX, &gm, 0, nullptr, &fMat22); 896d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (GDI_ERROR == status) { 897d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->zeroMetrics(); 898d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com return; 899d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 90039698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 901ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 902d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com bool empty = false; 903d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // The black box is either the embedded bitmap size or the outline extent. 904d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // It is 1x1 if nothing is to be drawn, but will also be 1x1 if something very small 905d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // is to be drawn, like a '.'. We need to outset '.' but do not wish to outset ' '. 906d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (1 == gm.gmBlackBoxX && 1 == gm.gmBlackBoxY) { 907d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // If GetGlyphOutline with GGO_NATIVE returns 0, we know there was no outline. 90896fcdcc219d2a0d3579719b84b28bede76efba64halcanary DWORD bufferSize = GetGlyphOutlineW(fDDC, glyphId, GGO_NATIVE | GGO_GLYPH_INDEX, &gm, 0, nullptr, &fMat22); 909d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com empty = (0 == bufferSize); 910d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 9111dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 912d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fTop = SkToS16(-gm.gmptGlyphOrigin.y); 913d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fLeft = SkToS16(gm.gmptGlyphOrigin.x); 914d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (empty) { 915d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fWidth = 0; 916d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fHeight = 0; 917ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 918d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // Outset, since the image may bleed out of the black box. 919d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // For embedded bitmaps the black box should be exact. 920d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // For outlines we need to outset by 1 in all directions for bleed. 921d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // For ClearType we need to outset by 2 for bleed. 922d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fWidth = gm.gmBlackBoxX + 4; 923d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fHeight = gm.gmBlackBoxY + 4; 924d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fTop -= 2; 925d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fLeft -= 2; 926d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 9276b3eacb0dfaeb3374d410c8c041bd39cd066e1eabenjaminwagner // TODO(benjaminwagner): What is the type of gm.gmCellInc[XY]? 9286b3eacb0dfaeb3374d410c8c041bd39cd066e1eabenjaminwagner glyph->fAdvanceX = (float)((int)gm.gmCellIncX); 9296b3eacb0dfaeb3374d410c8c041bd39cd066e1eabenjaminwagner glyph->fAdvanceY = (float)((int)gm.gmCellIncY); 930d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fRsbDelta = 0; 931d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fLsbDelta = 0; 932d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com 9336a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com if (this->isSubpixel()) { 934d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com sk_bzero(&gm, sizeof(gm)); 93596fcdcc219d2a0d3579719b84b28bede76efba64halcanary status = GetGlyphOutlineW(fDDC, glyphId, GGO_METRICS | GGO_GLYPH_INDEX, &gm, 0, nullptr, &fHighResMat22); 936d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (GDI_ERROR != status) { 937d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkPoint advance; 938d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fHiResMatrix.mapXY(SkIntToScalar(gm.gmCellIncX), SkIntToScalar(gm.gmCellIncY), &advance); 9396b3eacb0dfaeb3374d410c8c041bd39cd066e1eabenjaminwagner glyph->fAdvanceX = SkScalarToFloat(advance.fX); 9406b3eacb0dfaeb3374d410c8c041bd39cd066e1eabenjaminwagner glyph->fAdvanceY = SkScalarToFloat(advance.fY); 941d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 9420abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } else if (!isAxisAligned(this->fRec)) { 94396fcdcc219d2a0d3579719b84b28bede76efba64halcanary status = GetGlyphOutlineW(fDDC, glyphId, GGO_METRICS | GGO_GLYPH_INDEX, &gm, 0, nullptr, &fGsA); 9440abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (GDI_ERROR != status) { 9450abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkPoint advance; 9460abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fG_inv.mapXY(SkIntToScalar(gm.gmCellIncX), SkIntToScalar(gm.gmCellIncY), &advance); 9476b3eacb0dfaeb3374d410c8c041bd39cd066e1eabenjaminwagner glyph->fAdvanceX = SkScalarToFloat(advance.fX); 9486b3eacb0dfaeb3374d410c8c041bd39cd066e1eabenjaminwagner glyph->fAdvanceY = SkScalarToFloat(advance.fY); 9490abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 950ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 951ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 952ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 9536a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.comstatic const MAT2 gMat2Identity = {{0, 1}, {0, 0}, {0, 0}, {0, 1}}; 954410780677af260e32948b02c0725ef6ad761260cbungemanvoid SkScalerContext_GDI::generateFontMetrics(SkPaint::FontMetrics* metrics) { 95596fcdcc219d2a0d3579719b84b28bede76efba64halcanary if (nullptr == metrics) { 956410780677af260e32948b02c0725ef6ad761260cbungeman return; 95760af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com } 958410780677af260e32948b02c0725ef6ad761260cbungeman sk_bzero(metrics, sizeof(*metrics)); 959ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 960ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(fDDC); 961ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 962e9d831957602e3fa46fc4b609ae6d2da46654915bungeman@google.com#ifndef SK_GDI_ALWAYS_USE_TEXTMETRICS_FOR_FONT_METRICS 9634732df69415fbece99b3d4c033dc3bebe73d0117bungeman@google.com if (fType == SkScalerContext_GDI::kBitmap_Type || fType == SkScalerContext_GDI::kLine_Type) { 964e9d831957602e3fa46fc4b609ae6d2da46654915bungeman@google.com#endif 965410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fTop = SkIntToScalar(-fTM.tmAscent); 966410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fAscent = SkIntToScalar(-fTM.tmAscent); 967410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fDescent = SkIntToScalar(fTM.tmDescent); 968410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fBottom = SkIntToScalar(fTM.tmDescent); 969410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fLeading = SkIntToScalar(fTM.tmExternalLeading); 970410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fAvgCharWidth = SkIntToScalar(fTM.tmAveCharWidth); 971410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fMaxCharWidth = SkIntToScalar(fTM.tmMaxCharWidth); 972410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fXMin = 0; 973410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fXMax = metrics->fMaxCharWidth; 974410780677af260e32948b02c0725ef6ad761260cbungeman //metrics->fXHeight = 0; 975e9d831957602e3fa46fc4b609ae6d2da46654915bungeman@google.com#ifndef SK_GDI_ALWAYS_USE_TEXTMETRICS_FOR_FONT_METRICS 976a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com return; 977a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 978e9d831957602e3fa46fc4b609ae6d2da46654915bungeman@google.com#endif 979a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 980ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com OUTLINETEXTMETRIC otm; 981ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 982ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com uint32_t ret = GetOutlineTextMetrics(fDDC, sizeof(otm), &otm); 9830abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (0 == ret) { 984055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com LogFontTypeface::EnsureAccessible(this->getTypeface()); 98539698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com ret = GetOutlineTextMetrics(fDDC, sizeof(otm), &otm); 98639698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 9870abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (0 == ret) { 988a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com return; 989ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 990ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 991e9d831957602e3fa46fc4b609ae6d2da46654915bungeman@google.com#ifndef SK_GDI_ALWAYS_USE_TEXTMETRICS_FOR_FONT_METRICS 992410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fTop = SkIntToScalar(-otm.otmrcFontBox.top); 993410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fAscent = SkIntToScalar(-otm.otmAscent); 994410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fDescent = SkIntToScalar(-otm.otmDescent); 995410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fBottom = SkIntToScalar(-otm.otmrcFontBox.bottom); 996410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fLeading = SkIntToScalar(otm.otmLineGap); 997410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fAvgCharWidth = SkIntToScalar(otm.otmTextMetrics.tmAveCharWidth); 998410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fMaxCharWidth = SkIntToScalar(otm.otmTextMetrics.tmMaxCharWidth); 999410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fXMin = SkIntToScalar(otm.otmrcFontBox.left); 1000410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fXMax = SkIntToScalar(otm.otmrcFontBox.right); 1001d3031aa5ae90b796593a04c0da062024198e4769commit-bot@chromium.org#endif 1002410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fUnderlineThickness = SkIntToScalar(otm.otmsUnderscoreSize); 1003410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fUnderlinePosition = -SkIntToScalar(otm.otmsUnderscorePosition); 10044a867a6356e05a09186a16c1c8ffc3f2cafbbe59bungeman@google.com 1005410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fFlags |= SkPaint::FontMetrics::kUnderlineThinknessIsValid_Flag; 1006410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fFlags |= SkPaint::FontMetrics::kUnderlinePositionIsValid_Flag; 10070abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 1008410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fXHeight = SkIntToScalar(otm.otmsXHeight); 1009410780677af260e32948b02c0725ef6ad761260cbungeman GLYPHMETRICS gm; 1010410780677af260e32948b02c0725ef6ad761260cbungeman sk_bzero(&gm, sizeof(gm)); 1011410780677af260e32948b02c0725ef6ad761260cbungeman DWORD len = GetGlyphOutlineW(fDDC, 'x', GGO_METRICS, &gm, 0, 0, &gMat2Identity); 1012410780677af260e32948b02c0725ef6ad761260cbungeman if (len != GDI_ERROR && gm.gmBlackBoxY > 0) { 1013410780677af260e32948b02c0725ef6ad761260cbungeman metrics->fXHeight = SkIntToScalar(gm.gmBlackBoxY); 1014ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1015ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1016ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 10177430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com//////////////////////////////////////////////////////////////////////////////////////// 10187430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com 10190abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#define SK_SHOW_TEXT_BLIT_COVERAGE 0 10200abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 10217430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.comstatic void build_power_table(uint8_t table[], float ee) { 10227430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com for (int i = 0; i < 256; i++) { 10237430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com float x = i / 255.f; 102497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com x = sk_float_pow(x, ee); 1025e1ca705cac4b946993f6cbf798e2a0ba27e739f3reed@google.com int xx = SkScalarRoundToInt(x * 255); 10267430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com table[i] = SkToU8(xx); 10277430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com } 10287430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com} 10297430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com 103097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com/** 103197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * This will invert the gamma applied by GDI (gray-scale antialiased), so we 103297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * can get linear values. 103397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * 103497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * GDI grayscale appears to use a hard-coded gamma of 2.3. 103597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * 103697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * GDI grayscale appears to draw using the black and white rasterizer at four 103797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * times the size and then downsamples to compute the coverage mask. As a 103897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * result there are only seventeen total grays. This lack of fidelity means 103997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * that shifting into other color spaces is imprecise. 104097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com */ 104197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic const uint8_t* getInverseGammaTableGDI() { 104205a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Since build_power_table is idempotent, many threads can build gTableGdi 104305a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // simultaneously. 104405a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com 104505a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Microsoft Specific: 104605a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Making gInited volatile provides read-aquire and write-release in vc++. 104705a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // In VS2012, see compiler option /volatile:(ms|iso). 104805a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Replace with C++11 atomics when possible. 104905a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com static volatile bool gInited; 105097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com static uint8_t gTableGdi[256]; 105105a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com if (gInited) { 105205a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Need a L/L (read) barrier (full acquire not needed). If gInited is observed 105305a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // true then gTableGdi is observable, but it must be requested. 105405a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com } else { 105597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com build_power_table(gTableGdi, 2.3f); 105605a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Need a S/S (write) barrier (full release not needed) here so that this 105705a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // write to gInited becomes observable after gTableGdi. 105897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com gInited = true; 105997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } 106097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com return gTableGdi; 106197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com} 106297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com 106397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com/** 106497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * This will invert the gamma applied by GDI ClearType, so we can get linear 106597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * values. 106697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * 106797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * GDI ClearType uses SPI_GETFONTSMOOTHINGCONTRAST / 1000 as the gamma value. 106897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * If this value is not specified, the default is a gamma of 1.4. 106997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com */ 107097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic const uint8_t* getInverseGammaTableClearType() { 107105a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // We don't expect SPI_GETFONTSMOOTHINGCONTRAST to ever change, so building 107205a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // gTableClearType with build_power_table is effectively idempotent. 107305a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com 107405a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Microsoft Specific: 107505a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Making gInited volatile provides read-aquire and write-release in vc++. 107605a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // In VS2012, see compiler option /volatile:(ms|iso). 107705a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Replace with C++11 atomics when possible. 107805a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com static volatile bool gInited; 107997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com static uint8_t gTableClearType[256]; 108005a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com if (gInited) { 108105a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Need a L/L (read) barrier (acquire not needed). If gInited is observed 108205a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // true then gTableClearType is observable, but it must be requested. 108305a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com } else { 10847430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com UINT level = 0; 10857430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com if (!SystemParametersInfo(SPI_GETFONTSMOOTHINGCONTRAST, 0, &level, 0) || !level) { 10867430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com // can't get the data, so use a default 10877430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com level = 1400; 10887430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com } 108997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com build_power_table(gTableClearType, level / 1000.0f); 109005a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Need a S/S (write) barrier (release not needed) here so that this 109105a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // write to gInited becomes observable after gTableClearType. 10927430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com gInited = true; 10937430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com } 109497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com return gTableClearType; 10957430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com} 10967430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com 1097ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkColorPriv.h" 1098ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 10996385314686875ecb484d95b33fcbf08890b5144dbungeman@google.com//Cannot assume that the input rgb is gray due to possible setting of kGenA8FromLCD_Flag. 110097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 110197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic inline uint8_t rgb_to_a8(SkGdiRGB rgb, const uint8_t* table8) { 11026385314686875ecb484d95b33fcbf08890b5144dbungeman@google.com U8CPU r = (rgb >> 16) & 0xFF; 11036385314686875ecb484d95b33fcbf08890b5144dbungeman@google.com U8CPU g = (rgb >> 8) & 0xFF; 11046385314686875ecb484d95b33fcbf08890b5144dbungeman@google.com U8CPU b = (rgb >> 0) & 0xFF; 11051bfe01d06b896eca94c80d9af9a6bb30216b5e42bungeman@google.com return sk_apply_lut_if<APPLY_PREBLEND>(SkComputeLuminance(r, g, b), table8); 110682a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com} 110782a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 110897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 110997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic inline uint16_t rgb_to_lcd16(SkGdiRGB rgb, const uint8_t* tableR, 111097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableG, 111197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableB) { 111297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU r = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 16) & 0xFF, tableR); 111397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU g = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 8) & 0xFF, tableG); 111497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU b = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 0) & 0xFF, tableB); 11150abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#if SK_SHOW_TEXT_BLIT_COVERAGE 11160abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com r = SkMax32(r, 10); g = SkMax32(g, 10); b = SkMax32(b, 10); 11170abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#endif 111897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com return SkPack888ToRGB16(r, g, b); 1119ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1120ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 112182cff020b7e055f2d01686f060a884df842306edreed@google.com// Is this GDI color neither black nor white? If so, we have to keep this 112282cff020b7e055f2d01686f060a884df842306edreed@google.com// image as is, rather than smashing it down to a BW mask. 112382cff020b7e055f2d01686f060a884df842306edreed@google.com// 112482cff020b7e055f2d01686f060a884df842306edreed@google.com// returns int instead of bool, since we don't want/have to pay to convert 112582cff020b7e055f2d01686f060a884df842306edreed@google.com// the zero/non-zero value into a bool 112682cff020b7e055f2d01686f060a884df842306edreed@google.comstatic int is_not_black_or_white(SkGdiRGB c) { 112782cff020b7e055f2d01686f060a884df842306edreed@google.com // same as (but faster than) 112882cff020b7e055f2d01686f060a884df842306edreed@google.com // c &= 0x00FFFFFF; 112982cff020b7e055f2d01686f060a884df842306edreed@google.com // return 0 == c || 0x00FFFFFF == c; 113082cff020b7e055f2d01686f060a884df842306edreed@google.com return (c + (c & 1)) & 0x00FFFFFF; 11315e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 11325e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 11334b18f5767ab1df7fedf0ff2e3a9eac7f7c500c36bungeman@google.comstatic bool is_rgb_really_bw(const SkGdiRGB* src, int width, int height, size_t srcRB) { 11345e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int y = 0; y < height; ++y) { 11355e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int x = 0; x < width; ++x) { 113682cff020b7e055f2d01686f060a884df842306edreed@google.com if (is_not_black_or_white(src[x])) { 11375e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com return false; 11385e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 11395e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 114005a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com src = SkTAddOffset<const SkGdiRGB>(src, srcRB); 11415e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 11425e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com return true; 11435e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 11445e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 114597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com// gdi's bitmap is upside-down, so we reverse dst walking in Y 114697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com// whenever we copy it into skia's buffer 11475e2df64215f12660ab26b96816f40ad8e32bf16freed@google.comstatic void rgb_to_bw(const SkGdiRGB* SK_RESTRICT src, size_t srcRB, 114897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const SkGlyph& glyph) { 11495e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const int width = glyph.fWidth; 11505e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const size_t dstRB = (width + 7) >> 3; 11515e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com uint8_t* SK_RESTRICT dst = (uint8_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 11525e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 11535e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com int byteCount = width >> 3; 11545e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com int bitCount = width & 7; 11555e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 11565e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com // adjust srcRB to skip the values in our byteCount loop, 11575e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com // since we increment src locally there 11585e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com srcRB -= byteCount * 8 * sizeof(SkGdiRGB); 11595e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 11605e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int y = 0; y < glyph.fHeight; ++y) { 11615e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com if (byteCount > 0) { 11625e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int i = 0; i < byteCount; ++i) { 11637a230142e01c5a8cf955be12a5f287589b551634reed@google.com unsigned byte = 0; 116497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[0] & (1 << 7); 116597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[1] & (1 << 6); 116697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[2] & (1 << 5); 116797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[3] & (1 << 4); 116897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[4] & (1 << 3); 116997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[5] & (1 << 2); 117097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[6] & (1 << 1); 117197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[7] & (1 << 0); 11726a8f14d9633b330fb8051581828a0aaf4403d1a9reed@google.com dst[i] = byte; 11735e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com src += 8; 11745e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 11755e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 11765e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com if (bitCount > 0) { 11775e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com unsigned byte = 0; 11785e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com unsigned mask = 0x80; 11795e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int i = 0; i < bitCount; i++) { 118097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[i] & mask; 11815e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com mask >>= 1; 11825e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 11835e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com dst[byteCount] = byte; 11845e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 118505a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com src = SkTAddOffset<const SkGdiRGB>(src, srcRB); 11865e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com dst -= dstRB; 11875e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 11880abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#if SK_SHOW_TEXT_BLIT_COVERAGE 11890abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (glyph.fWidth > 0 && glyph.fHeight > 0) { 11900abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com uint8_t* first = (uint8_t*)glyph.fImage; 11910abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com uint8_t* last = (uint8_t*)((char*)glyph.fImage + glyph.fHeight * dstRB - 1); 11920abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com *first |= 1 << 7; 11930abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com *last |= bitCount == 0 ? 1 : 1 << (8 - bitCount); 11940abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 11950abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#endif 11965e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 11975e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 119897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 11995e2df64215f12660ab26b96816f40ad8e32bf16freed@google.comstatic void rgb_to_a8(const SkGdiRGB* SK_RESTRICT src, size_t srcRB, 120097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const SkGlyph& glyph, const uint8_t* table8) { 12015e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const size_t dstRB = glyph.rowBytes(); 12025e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const int width = glyph.fWidth; 12035e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com uint8_t* SK_RESTRICT dst = (uint8_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 12045e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 12055e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int y = 0; y < glyph.fHeight; y++) { 12065e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int i = 0; i < width; i++) { 120797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com dst[i] = rgb_to_a8<APPLY_PREBLEND>(src[i], table8); 12080abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#if SK_SHOW_TEXT_BLIT_COVERAGE 12090abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com dst[i] = SkMax32(dst[i], 10); 12100abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#endif 12115e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 121205a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com src = SkTAddOffset<const SkGdiRGB>(src, srcRB); 12135e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com dst -= dstRB; 12145e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 12155e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 12165e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 121797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 121897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic void rgb_to_lcd16(const SkGdiRGB* SK_RESTRICT src, size_t srcRB, const SkGlyph& glyph, 121997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableR, const uint8_t* tableG, const uint8_t* tableB) { 12205e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const size_t dstRB = glyph.rowBytes(); 12215e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const int width = glyph.fWidth; 12225e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com uint16_t* SK_RESTRICT dst = (uint16_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 12235e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 12245e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int y = 0; y < glyph.fHeight; y++) { 12255e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int i = 0; i < width; i++) { 122697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com dst[i] = rgb_to_lcd16<APPLY_PREBLEND>(src[i], tableR, tableG, tableB); 12275e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 122805a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com src = SkTAddOffset<const SkGdiRGB>(src, srcRB); 12295e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com dst = (uint16_t*)((char*)dst - dstRB); 12305e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 12315e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 12325e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 123330ddd615c447fed73286151b463af20d309c85f1reed@google.comvoid SkScalerContext_GDI::generateImage(const SkGlyph& glyph) { 1234ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(fDDC); 1235ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 12366271117d826098c1399cf7442f8eea2d665cb78areed@google.com const bool isBW = SkMask::kBW_Format == fRec.fMaskFormat; 123782a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com const bool isAA = !isLCD(fRec); 123882a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 123999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com size_t srcRB; 124097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const void* bits = fOffscreen.draw(glyph, isBW, &srcRB); 124196fcdcc219d2a0d3579719b84b28bede76efba64halcanary if (nullptr == bits) { 1242055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com LogFontTypeface::EnsureAccessible(this->getTypeface()); 124397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com bits = fOffscreen.draw(glyph, isBW, &srcRB); 124496fcdcc219d2a0d3579719b84b28bede76efba64halcanary if (nullptr == bits) { 124539698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com sk_bzero(glyph.fImage, glyph.computeImageSize()); 124639698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com return; 124739698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 124882a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com } 124982a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 125097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com if (!isBW) { 12511bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com const uint8_t* table; 12521bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com //The offscreen contains a GDI blit if isAA and kGenA8FromLCD_Flag is not set. 12531bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com //Otherwise the offscreen contains a ClearType blit. 12541bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com if (isAA && !(fRec.fFlags & SkScalerContext::kGenA8FromLCD_Flag)) { 12551bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com table = getInverseGammaTableGDI(); 12561bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com } else { 12571bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com table = getInverseGammaTableClearType(); 125897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } 125997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //Note that the following cannot really be integrated into the 126097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //pre-blend, since we may not be applying the pre-blend; when we aren't 126197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //applying the pre-blend it means that a filter wants linear anyway. 126297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //Other code may also be applying the pre-blend, so we'd need another 126397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //one with this and one without. 12646f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com SkGdiRGB* addr = (SkGdiRGB*)bits; 12656f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com for (int y = 0; y < glyph.fHeight; ++y) { 12666f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com for (int x = 0; x < glyph.fWidth; ++x) { 12676f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com int r = (addr[x] >> 16) & 0xFF; 12686f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com int g = (addr[x] >> 8) & 0xFF; 12696f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com int b = (addr[x] >> 0) & 0xFF; 12707430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com addr[x] = (table[r] << 16) | (table[g] << 8) | table[b]; 12716f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com } 127205a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com addr = SkTAddOffset<SkGdiRGB>(addr, srcRB); 12736f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com } 12746f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com } 12756f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com 127682a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com int width = glyph.fWidth; 127782a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com size_t dstRB = glyph.rowBytes(); 127882a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com if (isBW) { 127982a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com const uint8_t* src = (const uint8_t*)bits; 128082a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com uint8_t* dst = (uint8_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 128182a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com for (int y = 0; y < glyph.fHeight; y++) { 128282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com memcpy(dst, src, dstRB); 128382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com src += srcRB; 128482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com dst -= dstRB; 1285ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 12860abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#if SK_SHOW_TEXT_BLIT_COVERAGE 12870abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (glyph.fWidth > 0 && glyph.fHeight > 0) { 12880abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com int bitCount = width & 7; 12890abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com uint8_t* first = (uint8_t*)glyph.fImage; 12900abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com uint8_t* last = (uint8_t*)((char*)glyph.fImage + glyph.fHeight * dstRB - 1); 12910abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com *first |= 1 << 7; 12920abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com *last |= bitCount == 0 ? 1 : 1 << (8 - bitCount); 12930abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 12940abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#endif 129582a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com } else if (isAA) { 12966f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com // since the caller may require A8 for maskfilters, we can't check for BW 12976f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com // ... until we have the caller tell us that explicitly 12985e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const SkGdiRGB* src = (const SkGdiRGB*)bits; 1299a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com if (fPreBlend.isApplicable()) { 1300a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com rgb_to_a8<true>(src, srcRB, glyph, fPreBlend.fG); 130197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } else { 1302a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com rgb_to_a8<false>(src, srcRB, glyph, fPreBlend.fG); 130397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } 130482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com } else { // LCD16 13055e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const SkGdiRGB* src = (const SkGdiRGB*)bits; 13065e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com if (is_rgb_really_bw(src, width, glyph.fHeight, srcRB)) { 130797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com rgb_to_bw(src, srcRB, glyph); 13085e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com ((SkGlyph*)&glyph)->fMaskFormat = SkMask::kBW_Format; 13095e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } else { 1310d54d3fc82456f8789b3e4dff40faeb7b670bcf4breed SkASSERT(SkMask::kLCD16_Format == glyph.fMaskFormat); 1311d54d3fc82456f8789b3e4dff40faeb7b670bcf4breed if (fPreBlend.isApplicable()) { 1312d54d3fc82456f8789b3e4dff40faeb7b670bcf4breed rgb_to_lcd16<true>(src, srcRB, glyph, 1313d54d3fc82456f8789b3e4dff40faeb7b670bcf4breed fPreBlend.fR, fPreBlend.fG, fPreBlend.fB); 1314754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } else { 1315d54d3fc82456f8789b3e4dff40faeb7b670bcf4breed rgb_to_lcd16<false>(src, srcRB, glyph, 1316d54d3fc82456f8789b3e4dff40faeb7b670bcf4breed fPreBlend.fR, fPreBlend.fG, fPreBlend.fB); 1317754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } 1318ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1319ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1320ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1321ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 13220abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.comclass GDIGlyphbufferPointIter { 13230abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.compublic: 132427e21fe577211c1c40cbf40d0385b02c69d04522skia.committer@gmail.com GDIGlyphbufferPointIter(const uint8_t* glyphbuf, DWORD total_size) 13250abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com : fHeaderIter(glyphbuf, total_size), fCurveIter(), fPointIter() 13260abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com { } 13270abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 1328dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com POINTFX const * next() { 13290abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.comnextHeader: 13300abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (!fCurveIter.isSet()) { 13310abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYGONHEADER* header = fHeaderIter.next(); 133296fcdcc219d2a0d3579719b84b28bede76efba64halcanary if (nullptr == header) { 133396fcdcc219d2a0d3579719b84b28bede76efba64halcanary return nullptr; 1334dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com } 13350abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fCurveIter.set(header); 13360abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYCURVE* curve = fCurveIter.next(); 133796fcdcc219d2a0d3579719b84b28bede76efba64halcanary if (nullptr == curve) { 133896fcdcc219d2a0d3579719b84b28bede76efba64halcanary return nullptr; 1339dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com } 13400abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fPointIter.set(curve); 1341dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com return &header->pfxStart; 13420abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 1343ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 13440abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const POINTFX* nextPoint = fPointIter.next(); 134596fcdcc219d2a0d3579719b84b28bede76efba64halcanary if (nullptr == nextPoint) { 13460abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYCURVE* curve = fCurveIter.next(); 134796fcdcc219d2a0d3579719b84b28bede76efba64halcanary if (nullptr == curve) { 13480abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fCurveIter.set(); 13490abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com goto nextHeader; 13500abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } else { 13510abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fPointIter.set(curve); 13520abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 13530abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com nextPoint = fPointIter.next(); 13540abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 1355dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com return nextPoint; 13560abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 1357ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 13580abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com WORD currentCurveType() { 13590abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return fPointIter.fCurveType; 13600abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 136105a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com 13620abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.comprivate: 13630abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com /** Iterates over all of the polygon headers in a glyphbuf. */ 13640abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com class GDIPolygonHeaderIter { 13650abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com public: 136627e21fe577211c1c40cbf40d0385b02c69d04522skia.committer@gmail.com GDIPolygonHeaderIter(const uint8_t* glyphbuf, DWORD total_size) 13670abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com : fCurPolygon(reinterpret_cast<const TTPOLYGONHEADER*>(glyphbuf)) 13680abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com , fEndPolygon(SkTAddOffset<const TTPOLYGONHEADER>(glyphbuf, total_size)) 13690abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com { } 13700abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 13710abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYGONHEADER* next() { 13720abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (fCurPolygon >= fEndPolygon) { 137396fcdcc219d2a0d3579719b84b28bede76efba64halcanary return nullptr; 13740abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 13750abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYGONHEADER* thisPolygon = fCurPolygon; 13760abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fCurPolygon = SkTAddOffset<const TTPOLYGONHEADER>(fCurPolygon, fCurPolygon->cb); 13770abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return thisPolygon; 13780abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 13790abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com private: 13800abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYGONHEADER* fCurPolygon; 13810abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYGONHEADER* fEndPolygon; 13820abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com }; 138305a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com 13840abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com /** Iterates over all of the polygon curves in a polygon header. */ 13850abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com class GDIPolygonCurveIter { 13860abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com public: 138796fcdcc219d2a0d3579719b84b28bede76efba64halcanary GDIPolygonCurveIter() : fCurCurve(nullptr), fEndCurve(nullptr) { } 13880abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 13890abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GDIPolygonCurveIter(const TTPOLYGONHEADER* curPolygon) 13900abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com : fCurCurve(SkTAddOffset<const TTPOLYCURVE>(curPolygon, sizeof(TTPOLYGONHEADER))) 13910abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com , fEndCurve(SkTAddOffset<const TTPOLYCURVE>(curPolygon, curPolygon->cb)) 13920abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com { } 13930abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 139496fcdcc219d2a0d3579719b84b28bede76efba64halcanary bool isSet() { return fCurCurve != nullptr; } 13950abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 13960abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com void set(const TTPOLYGONHEADER* curPolygon) { 13970abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fCurCurve = SkTAddOffset<const TTPOLYCURVE>(curPolygon, sizeof(TTPOLYGONHEADER)); 13980abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fEndCurve = SkTAddOffset<const TTPOLYCURVE>(curPolygon, curPolygon->cb); 13990abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 14000abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com void set() { 140196fcdcc219d2a0d3579719b84b28bede76efba64halcanary fCurCurve = nullptr; 140296fcdcc219d2a0d3579719b84b28bede76efba64halcanary fEndCurve = nullptr; 14030abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 14040abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 14050abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYCURVE* next() { 14060abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (fCurCurve >= fEndCurve) { 140796fcdcc219d2a0d3579719b84b28bede76efba64halcanary return nullptr; 140805a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com } 14090abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYCURVE* thisCurve = fCurCurve; 14100abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fCurCurve = SkTAddOffset<const TTPOLYCURVE>(fCurCurve, size_of_TTPOLYCURVE(*fCurCurve)); 14110abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return thisCurve; 14120abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 14130abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com private: 14140abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com size_t size_of_TTPOLYCURVE(const TTPOLYCURVE& curve) { 14150abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return 2*sizeof(WORD) + curve.cpfx*sizeof(POINTFX); 141605a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com } 14170abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYCURVE* fCurCurve; 14180abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYCURVE* fEndCurve; 14190abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com }; 142005a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com 14210abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com /** Iterates over all of the polygon points in a polygon curve. */ 14220abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com class GDIPolygonCurvePointIter { 14230abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com public: 142496fcdcc219d2a0d3579719b84b28bede76efba64halcanary GDIPolygonCurvePointIter() : fCurveType(0), fCurPoint(nullptr), fEndPoint(nullptr) { } 142505a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com 14260abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GDIPolygonCurvePointIter(const TTPOLYCURVE* curPolygon) 14270abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com : fCurveType(curPolygon->wType) 14280abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com , fCurPoint(&curPolygon->apfx[0]) 14290abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com , fEndPoint(&curPolygon->apfx[curPolygon->cpfx]) 14300abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com { } 14310abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 143296fcdcc219d2a0d3579719b84b28bede76efba64halcanary bool isSet() { return fCurPoint != nullptr; } 14330abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 14340abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com void set(const TTPOLYCURVE* curPolygon) { 14350abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fCurveType = curPolygon->wType; 14360abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fCurPoint = &curPolygon->apfx[0]; 14370abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fEndPoint = &curPolygon->apfx[curPolygon->cpfx]; 14380abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 14390abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com void set() { 144096fcdcc219d2a0d3579719b84b28bede76efba64halcanary fCurPoint = nullptr; 144196fcdcc219d2a0d3579719b84b28bede76efba64halcanary fEndPoint = nullptr; 14420abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 14430abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 14440abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const POINTFX* next() { 14450abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (fCurPoint >= fEndPoint) { 144696fcdcc219d2a0d3579719b84b28bede76efba64halcanary return nullptr; 144705a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com } 14480abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const POINTFX* thisPoint = fCurPoint; 14490abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com ++fCurPoint; 14500abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return thisPoint; 1451d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 1452ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 14530abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com WORD fCurveType; 14540abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com private: 14550abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const POINTFX* fCurPoint; 14560abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const POINTFX* fEndPoint; 14570abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com }; 14580abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 14590abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GDIPolygonHeaderIter fHeaderIter; 14600abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GDIPolygonCurveIter fCurveIter; 14610abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GDIPolygonCurvePointIter fPointIter; 14620abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com}; 14630abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 14640abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.comstatic void sk_path_from_gdi_path(SkPath* path, const uint8_t* glyphbuf, DWORD total_size) { 1465d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const uint8_t* cur_glyph = glyphbuf; 1466d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const uint8_t* end_glyph = glyphbuf + total_size; 1467ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1468d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com while (cur_glyph < end_glyph) { 1469d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const TTPOLYGONHEADER* th = (TTPOLYGONHEADER*)cur_glyph; 1470ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1471d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const uint8_t* end_poly = cur_glyph + th->cb; 1472d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const uint8_t* cur_poly = cur_glyph + sizeof(TTPOLYGONHEADER); 1473ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1474d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com path->moveTo(SkFixedToScalar( SkFIXEDToFixed(th->pfxStart.x)), 1475d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(th->pfxStart.y))); 1476ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1477d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com while (cur_poly < end_poly) { 1478d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const TTPOLYCURVE* pc = (const TTPOLYCURVE*)cur_poly; 1479ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1480d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (pc->wType == TT_PRIM_LINE) { 1481d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com for (uint16_t i = 0; i < pc->cpfx; i++) { 1482d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com path->lineTo(SkFixedToScalar( SkFIXEDToFixed(pc->apfx[i].x)), 1483d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(pc->apfx[i].y))); 1484ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1485d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 1486ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1487d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (pc->wType == TT_PRIM_QSPLINE) { 1488d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com for (uint16_t u = 0; u < pc->cpfx - 1; u++) { // Walk through points in spline 1489d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com POINTFX pnt_b = pc->apfx[u]; // B is always the current point 1490d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com POINTFX pnt_c = pc->apfx[u+1]; 1491ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1492d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (u < pc->cpfx - 2) { // If not on last spline, compute C 1493d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com pnt_c.x = SkFixedToFIXED(SkFixedAve(SkFIXEDToFixed(pnt_b.x), 1494d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFIXEDToFixed(pnt_c.x))); 1495d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com pnt_c.y = SkFixedToFIXED(SkFixedAve(SkFIXEDToFixed(pnt_b.y), 1496d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFIXEDToFixed(pnt_c.y))); 1497ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1498d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com 1499d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com path->quadTo(SkFixedToScalar( SkFIXEDToFixed(pnt_b.x)), 1500d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(pnt_b.y)), 1501d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFixedToScalar( SkFIXEDToFixed(pnt_c.x)), 1502d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(pnt_c.y))); 1503ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1504ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1505d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // Advance past this TTPOLYCURVE. 1506d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com cur_poly += sizeof(WORD) * 2 + sizeof(POINTFX) * pc->cpfx; 1507ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1508d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com cur_glyph += th->cb; 1509d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com path->close(); 1510ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1511ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1512ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1513dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com#define move_next_expected_hinted_point(iter, pElem) do {\ 1514dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com pElem = iter.next(); \ 151596fcdcc219d2a0d3579719b84b28bede76efba64halcanary if (nullptr == pElem) return false; \ 1516dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com} while(0) 1517dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com 1518dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com// It is possible for the hinted and unhinted versions of the same path to have 1519dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com// a different number of points due to GDI's handling of flipped points. 1520dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com// If this is detected, this will return false. 1521dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.comstatic bool sk_path_from_gdi_paths(SkPath* path, const uint8_t* glyphbuf, DWORD total_size, 15220abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GDIGlyphbufferPointIter hintedYs) { 15230abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const uint8_t* cur_glyph = glyphbuf; 15240abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const uint8_t* end_glyph = glyphbuf + total_size; 15250abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 1526dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com POINTFX const * hintedPoint; 1527dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com 15280abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com while (cur_glyph < end_glyph) { 15290abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYGONHEADER* th = (TTPOLYGONHEADER*)cur_glyph; 15300abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 15310abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const uint8_t* end_poly = cur_glyph + th->cb; 15320abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const uint8_t* cur_poly = cur_glyph + sizeof(TTPOLYGONHEADER); 15330abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 1534dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com move_next_expected_hinted_point(hintedYs, hintedPoint); 15350abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com path->moveTo(SkFixedToScalar( SkFIXEDToFixed(th->pfxStart.x)), 1536dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(hintedPoint->y))); 15370abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 15380abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com while (cur_poly < end_poly) { 15390abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYCURVE* pc = (const TTPOLYCURVE*)cur_poly; 15400abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 15410abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (pc->wType == TT_PRIM_LINE) { 15420abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com for (uint16_t i = 0; i < pc->cpfx; i++) { 1543dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com move_next_expected_hinted_point(hintedYs, hintedPoint); 15440abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com path->lineTo(SkFixedToScalar( SkFIXEDToFixed(pc->apfx[i].x)), 1545dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(hintedPoint->y))); 15460abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 15470abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 15480abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 15490abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (pc->wType == TT_PRIM_QSPLINE) { 15500abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com POINTFX currentPoint = pc->apfx[0]; 1551dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com move_next_expected_hinted_point(hintedYs, hintedPoint); 15520abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // only take the hinted y if it wasn't flipped 15530abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (hintedYs.currentCurveType() == TT_PRIM_QSPLINE) { 1554dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com currentPoint.y = hintedPoint->y; 15550abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 15560abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com for (uint16_t u = 0; u < pc->cpfx - 1; u++) { // Walk through points in spline 15570abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com POINTFX pnt_b = currentPoint;//pc->apfx[u]; // B is always the current point 15580abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com POINTFX pnt_c = pc->apfx[u+1]; 1559dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com move_next_expected_hinted_point(hintedYs, hintedPoint); 15600abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // only take the hinted y if it wasn't flipped 15610abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (hintedYs.currentCurveType() == TT_PRIM_QSPLINE) { 1562dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com pnt_c.y = hintedPoint->y; 15630abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 15640abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com currentPoint.x = pnt_c.x; 15650abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com currentPoint.y = pnt_c.y; 15660abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 15670abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (u < pc->cpfx - 2) { // If not on last spline, compute C 15680abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com pnt_c.x = SkFixedToFIXED(SkFixedAve(SkFIXEDToFixed(pnt_b.x), 15690abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkFIXEDToFixed(pnt_c.x))); 15700abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com pnt_c.y = SkFixedToFIXED(SkFixedAve(SkFIXEDToFixed(pnt_b.y), 15710abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkFIXEDToFixed(pnt_c.y))); 15720abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 15730abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 15740abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com path->quadTo(SkFixedToScalar( SkFIXEDToFixed(pnt_b.x)), 15750abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(pnt_b.y)), 15760abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkFixedToScalar( SkFIXEDToFixed(pnt_c.x)), 15770abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(pnt_c.y))); 15780abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 15790abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 15800abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // Advance past this TTPOLYCURVE. 15810abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com cur_poly += sizeof(WORD) * 2 + sizeof(POINTFX) * pc->cpfx; 15820abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 15830abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com cur_glyph += th->cb; 15840abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com path->close(); 15850abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 1586dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com return true; 15870abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com} 15880abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 158930ddd615c447fed73286151b463af20d309c85f1reed@google.comDWORD SkScalerContext_GDI::getGDIGlyphPath(const SkGlyph& glyph, UINT flags, 15900abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkAutoSTMalloc<BUFFERSIZE, uint8_t>* glyphbuf) 15910abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com{ 15920abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GLYPHMETRICS gm; 15930abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 1594b69d0e0ac45e13f667bc11a937dcb547072bc93dherb DWORD total_size = GetGlyphOutlineW(fDDC, glyph.getGlyphID(), flags, &gm, BUFFERSIZE, glyphbuf->get(), &fMat22); 15950abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // Sometimes GetGlyphOutlineW returns a number larger than BUFFERSIZE even if BUFFERSIZE > 0. 15960abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // It has been verified that this does not involve a buffer overrun. 15970abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (GDI_ERROR == total_size || total_size > BUFFERSIZE) { 15980abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // GDI_ERROR because the BUFFERSIZE was too small, or because the data was not accessible. 15990abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // When the data is not accessable GetGlyphOutlineW fails rather quickly, 16000abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // so just try to get the size. If that fails then ensure the data is accessible. 160196fcdcc219d2a0d3579719b84b28bede76efba64halcanary total_size = GetGlyphOutlineW(fDDC, glyph.getGlyphID(), flags, &gm, 0, nullptr, &fMat22); 16020abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (GDI_ERROR == total_size) { 16030abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com LogFontTypeface::EnsureAccessible(this->getTypeface()); 160496fcdcc219d2a0d3579719b84b28bede76efba64halcanary total_size = GetGlyphOutlineW(fDDC, glyph.getGlyphID(), flags, &gm, 0, nullptr, &fMat22); 16050abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (GDI_ERROR == total_size) { 1606c6cb56f36c4aad8ed45486a3bb4de614bb822f1bkkinnunen // GetGlyphOutlineW is known to fail for some characters, such as spaces. 1607c6cb56f36c4aad8ed45486a3bb4de614bb822f1bkkinnunen // In these cases, just return that the glyph does not have a shape. 16080abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return 0; 16090abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16100abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16110abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 16120abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com glyphbuf->reset(total_size); 16130abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 1614b69d0e0ac45e13f667bc11a937dcb547072bc93dherb DWORD ret = GetGlyphOutlineW(fDDC, glyph.getGlyphID(), flags, &gm, total_size, glyphbuf->get(), &fMat22); 16150abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (GDI_ERROR == ret) { 16160abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com LogFontTypeface::EnsureAccessible(this->getTypeface()); 1617b69d0e0ac45e13f667bc11a937dcb547072bc93dherb ret = GetGlyphOutlineW(fDDC, glyph.getGlyphID(), flags, &gm, total_size, glyphbuf->get(), &fMat22); 16180abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (GDI_ERROR == ret) { 16190abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkASSERT(false); 16200abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return 0; 16210abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16220abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16230abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16240abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return total_size; 16250abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com} 16260abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 162730ddd615c447fed73286151b463af20d309c85f1reed@google.comvoid SkScalerContext_GDI::generatePath(const SkGlyph& glyph, SkPath* path) { 16283ba043f460a5d60a7fd733f4109132fa79148559dcheng SkASSERT(path); 16290abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkASSERT(fDDC); 16300abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 16310abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com path->reset(); 16320abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 16330abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // Out of all the fonts on a typical Windows box, 16340abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // 25% of glyphs require more than 2KB. 16350abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // 1% of glyphs require more than 4KB. 16360abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // 0.01% of glyphs require more than 8KB. 16370abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // 8KB is less than 1% of the normal 1MB stack on Windows. 16380abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // Note that some web fonts glyphs require more than 20KB. 16390abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com //static const DWORD BUFFERSIZE = (1 << 13); 16400abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 16410abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com //GDI only uses hinted outlines when axis aligned. 16420abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com UINT format = GGO_NATIVE | GGO_GLYPH_INDEX; 16430abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (fRec.getHinting() == SkPaint::kNo_Hinting || fRec.getHinting() == SkPaint::kSlight_Hinting){ 16440abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com format |= GGO_UNHINTED; 16450abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16460abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkAutoSTMalloc<BUFFERSIZE, uint8_t> glyphbuf(BUFFERSIZE); 16470abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com DWORD total_size = getGDIGlyphPath(glyph, format, &glyphbuf); 16480abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (0 == total_size) { 16490abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return; 16500abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16510abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 16520abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (fRec.getHinting() != SkPaint::kSlight_Hinting) { 16530abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com sk_path_from_gdi_path(path, glyphbuf, total_size); 16540abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } else { 16550abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com //GDI only uses hinted outlines when axis aligned. 16560abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com UINT format = GGO_NATIVE | GGO_GLYPH_INDEX; 16570abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 16580abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkAutoSTMalloc<BUFFERSIZE, uint8_t> hintedGlyphbuf(BUFFERSIZE); 16590abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com DWORD hinted_total_size = getGDIGlyphPath(glyph, format, &hintedGlyphbuf); 16600abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (0 == hinted_total_size) { 16610abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return; 16620abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16630abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 1664dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com if (!sk_path_from_gdi_paths(path, glyphbuf, total_size, 1665dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com GDIGlyphbufferPointIter(hintedGlyphbuf, hinted_total_size))) 1666dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com { 1667dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com path->reset(); 1668dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com sk_path_from_gdi_path(path, glyphbuf, total_size); 1669dd88eccb22bd2cafcf0c0facf674a8aaaacca7febungeman@google.com } 16700abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16710abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com} 16720abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 1673484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comstatic void logfont_for_name(const char* familyName, LOGFONT* lf) { 1674484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com sk_bzero(lf, sizeof(LOGFONT)); 1675e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com#ifdef UNICODE 1676484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com // Get the buffer size needed first. 1677484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com size_t str_len = ::MultiByteToWideChar(CP_UTF8, 0, familyName, 167896fcdcc219d2a0d3579719b84b28bede76efba64halcanary -1, nullptr, 0); 1679484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com // Allocate a buffer (str_len already has terminating null 1680484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com // accounted for). 1681484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com wchar_t *wideFamilyName = new wchar_t[str_len]; 1682484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com // Now actually convert the string. 1683484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ::MultiByteToWideChar(CP_UTF8, 0, familyName, -1, 1684484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com wideFamilyName, str_len); 1685484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ::wcsncpy(lf->lfFaceName, wideFamilyName, LF_FACESIZE - 1); 1686484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com delete [] wideFamilyName; 1687484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com lf->lfFaceName[LF_FACESIZE-1] = L'\0'; 1688e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com#else 1689484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ::strncpy(lf->lfFaceName, familyName, LF_FACESIZE - 1); 1690484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com lf->lfFaceName[LF_FACESIZE - 1] = '\0'; 1691e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com#endif 1692e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com} 1693e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com 1694b374d6a62c0259387d90cad74753d8bad9ee1beabungemanvoid LogFontTypeface::onGetFamilyName(SkString* familyName) const { 16957103f182ce61280eacb35f1832df350b642a5381bungeman@google.com // Get the actual name of the typeface. The logfont may not know this. 16965526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.com HFONT font = CreateFontIndirect(&fLogFont); 16977103f182ce61280eacb35f1832df350b642a5381bungeman@google.com 169896fcdcc219d2a0d3579719b84b28bede76efba64halcanary HDC deviceContext = ::CreateCompatibleDC(nullptr); 16997103f182ce61280eacb35f1832df350b642a5381bungeman@google.com HFONT savefont = (HFONT)SelectObject(deviceContext, font); 17007103f182ce61280eacb35f1832df350b642a5381bungeman@google.com 1701b374d6a62c0259387d90cad74753d8bad9ee1beabungeman dcfontname_to_skstring(deviceContext, fLogFont, familyName); 17027103f182ce61280eacb35f1832df350b642a5381bungeman@google.com 17037103f182ce61280eacb35f1832df350b642a5381bungeman@google.com if (deviceContext) { 17047103f182ce61280eacb35f1832df350b642a5381bungeman@google.com ::SelectObject(deviceContext, savefont); 17057103f182ce61280eacb35f1832df350b642a5381bungeman@google.com ::DeleteDC(deviceContext); 17067103f182ce61280eacb35f1832df350b642a5381bungeman@google.com } 17077103f182ce61280eacb35f1832df350b642a5381bungeman@google.com if (font) { 17087103f182ce61280eacb35f1832df350b642a5381bungeman@google.com ::DeleteObject(font); 17097103f182ce61280eacb35f1832df350b642a5381bungeman@google.com } 1710b374d6a62c0259387d90cad74753d8bad9ee1beabungeman} 17117103f182ce61280eacb35f1832df350b642a5381bungeman@google.com 1712b374d6a62c0259387d90cad74753d8bad9ee1beabungemanvoid LogFontTypeface::onGetFontDescriptor(SkFontDescriptor* desc, 1713b374d6a62c0259387d90cad74753d8bad9ee1beabungeman bool* isLocalStream) const { 1714b374d6a62c0259387d90cad74753d8bad9ee1beabungeman SkString familyName; 1715b374d6a62c0259387d90cad74753d8bad9ee1beabungeman this->onGetFamilyName(&familyName); 17165526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.com desc->setFamilyName(familyName.c_str()); 1717b8113780c3cfed640016b263194b7f1531d43312bungeman desc->setStyle(this->fontStyle()); 17185526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.com *isLocalStream = this->fSerializeAsStream; 1719ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1720ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 17212689f615e364dc48ad73826564f5b13d2329179dreed@google.comSkAdvancedTypefaceMetrics* LogFontTypeface::onGetAdvancedTypefaceMetrics( 172239a9a5069b25aa8b9529118cfd0ece5f412fb56breed PerGlyphInfo perGlyphInfo, 172337ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org const uint32_t* glyphIDs, 17242689f615e364dc48ad73826564f5b13d2329179dreed@google.com uint32_t glyphIDsCount) const { 17252689f615e364dc48ad73826564f5b13d2329179dreed@google.com LOGFONT lf = fLogFont; 172696fcdcc219d2a0d3579719b84b28bede76efba64halcanary SkAdvancedTypefaceMetrics* info = nullptr; 1727ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 172896fcdcc219d2a0d3579719b84b28bede76efba64halcanary HDC hdc = CreateCompatibleDC(nullptr); 1729ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT font = CreateFontIndirect(&lf); 1730ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT savefont = (HFONT)SelectObject(hdc, font); 173196fcdcc219d2a0d3579719b84b28bede76efba64halcanary HFONT designFont = nullptr; 1732ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 173305b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com const char stem_chars[] = {'i', 'I', '!', '1'}; 173405b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com int16_t min_width; 173505b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com unsigned glyphCount; 173605b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com 1737ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // To request design units, create a logical font whose height is specified 1738ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // as unitsPerEm. 1739ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com OUTLINETEXTMETRIC otm; 174039698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com unsigned int otmRet = GetOutlineTextMetrics(hdc, sizeof(otm), &otm); 174139698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (0 == otmRet) { 1742055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com call_ensure_accessible(lf); 174339698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com otmRet = GetOutlineTextMetrics(hdc, sizeof(otm), &otm); 174439698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 174539698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (!otmRet || !GetTextFace(hdc, LF_FACESIZE, lf.lfFaceName)) { 1746ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com goto Error; 1747ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1748ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com lf.lfHeight = -SkToS32(otm.otmEMSquare); 1749ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com designFont = CreateFontIndirect(&lf); 1750ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SelectObject(hdc, designFont); 1751ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (!GetOutlineTextMetrics(hdc, sizeof(otm), &otm)) { 1752ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com goto Error; 1753ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 17547bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com glyphCount = calculateGlyphCount(hdc, fLogFont); 1755ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1756ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info = new SkAdvancedTypefaceMetrics; 1757ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fEmSize = otm.otmEMSquare; 1758ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fLastGlyphID = SkToU16(glyphCount - 1); 17597103f182ce61280eacb35f1832df350b642a5381bungeman@google.com tchar_to_skstring(lf.lfFaceName, &info->fFontName); 17600f9bad01b0e7ad592ffb342dcf1d238b15329be1vandebo // If bit 1 is set, the font may not be embedded in a document. 17610f9bad01b0e7ad592ffb342dcf1d238b15329be1vandebo // If bit 1 is clear, the font can be embedded. 17620f9bad01b0e7ad592ffb342dcf1d238b15329be1vandebo // If bit 2 is set, the embedding is read-only. 17630f9bad01b0e7ad592ffb342dcf1d238b15329be1vandebo if (otm.otmfsType & 0x1) { 17640f9bad01b0e7ad592ffb342dcf1d238b15329be1vandebo info->fFlags = SkTBitOr<SkAdvancedTypefaceMetrics::FontFlags>( 17650f9bad01b0e7ad592ffb342dcf1d238b15329be1vandebo info->fFlags, 17660f9bad01b0e7ad592ffb342dcf1d238b15329be1vandebo SkAdvancedTypefaceMetrics::kNotEmbeddable_FontFlag); 17670f9bad01b0e7ad592ffb342dcf1d238b15329be1vandebo } 1768ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 176939a9a5069b25aa8b9529118cfd0ece5f412fb56breed if (perGlyphInfo & kToUnicode_PerGlyphInfo) { 17706744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org populate_glyph_to_unicode(hdc, glyphCount, &(info->fGlyphToUnicode)); 17716744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 17726744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 1773d41e70de196e78e21e1001d23a7259785cbd0835vandebo@chromium.org if (glyphCount > 0 && 1774d41e70de196e78e21e1001d23a7259785cbd0835vandebo@chromium.org (otm.otmTextMetrics.tmPitchAndFamily & TMPF_TRUETYPE)) { 1775ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fType = SkAdvancedTypefaceMetrics::kTrueType_Font; 1776ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 1777390c6d7a9018e233a6519397ac6c739fb21a99efedisonn@google.com goto ReturnInfo; 1778ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 17795aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org 1780ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // If this bit is clear the font is a fixed pitch font. 1781ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (!(otm.otmTextMetrics.tmPitchAndFamily & TMPF_FIXED_PITCH)) { 1782ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kFixedPitch_Style; 1783ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1784ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (otm.otmTextMetrics.tmItalic) { 1785ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kItalic_Style; 1786ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1787ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (otm.otmTextMetrics.tmPitchAndFamily & FF_ROMAN) { 1788ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kSerif_Style; 1789ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else if (otm.otmTextMetrics.tmPitchAndFamily & FF_SCRIPT) { 1790ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kScript_Style; 1791ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1792ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1793ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // The main italic angle of the font, in tenths of a degree counterclockwise 1794ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // from vertical. 1795ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fItalicAngle = otm.otmItalicAngle / 10; 1796ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fAscent = SkToS16(otm.otmTextMetrics.tmAscent); 1797ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fDescent = SkToS16(-otm.otmTextMetrics.tmDescent); 1798ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // TODO(ctguil): Use alternate cap height calculation. 1799ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // MSDN says otmsCapEmHeight is not support but it is returning a value on 1800ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // my Win7 box. 1801ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fCapHeight = otm.otmsCapEmHeight; 1802ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fBBox = 1803ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkIRect::MakeLTRB(otm.otmrcFontBox.left, otm.otmrcFontBox.top, 1804ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com otm.otmrcFontBox.right, otm.otmrcFontBox.bottom); 1805ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1806ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Figure out a good guess for StemV - Min width of i, I, !, 1. 1807ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // This probably isn't very good with an italic font. 180805b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com min_width = SHRT_MAX; 1809ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStemV = 0; 1810ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com for (size_t i = 0; i < SK_ARRAY_COUNT(stem_chars); i++) { 1811ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ABC abcWidths; 1812ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (GetCharABCWidths(hdc, stem_chars[i], stem_chars[i], &abcWidths)) { 1813ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int16_t width = abcWidths.abcB; 1814ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (width > 0 && width < min_width) { 1815ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com min_width = width; 1816ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStemV = min_width; 1817ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1818ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1819ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1820ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 182139a9a5069b25aa8b9529118cfd0ece5f412fb56breed if (perGlyphInfo & kHAdvance_PerGlyphInfo) { 1822f1491693527a70919de5d624a049cae38384474ebungeman info->setGlyphWidths( 1823f1491693527a70919de5d624a049cae38384474ebungeman glyphCount, 1824f1491693527a70919de5d624a049cae38384474ebungeman glyphIDs, 1825f1491693527a70919de5d624a049cae38384474ebungeman glyphIDsCount, 1826f1491693527a70919de5d624a049cae38384474ebungeman SkAdvancedTypefaceMetrics::GetAdvance([hdc](int gId, int16_t* advance) { 1827f1491693527a70919de5d624a049cae38384474ebungeman // Initialize the MAT2 structure to 1828f1491693527a70919de5d624a049cae38384474ebungeman // the identify transformation matrix. 1829f1491693527a70919de5d624a049cae38384474ebungeman static const MAT2 mat2 = { 1830f1491693527a70919de5d624a049cae38384474ebungeman SkScalarToFIXED(1), SkScalarToFIXED(0), 1831f1491693527a70919de5d624a049cae38384474ebungeman SkScalarToFIXED(0), SkScalarToFIXED(1)}; 1832f1491693527a70919de5d624a049cae38384474ebungeman int flags = GGO_METRICS | GGO_GLYPH_INDEX; 1833f1491693527a70919de5d624a049cae38384474ebungeman GLYPHMETRICS gm; 1834f1491693527a70919de5d624a049cae38384474ebungeman if (GDI_ERROR == GetGlyphOutline(hdc, gId, flags, &gm, 0, nullptr, &mat2)) { 1835f1491693527a70919de5d624a049cae38384474ebungeman return false; 1836f1491693527a70919de5d624a049cae38384474ebungeman } 1837f1491693527a70919de5d624a049cae38384474ebungeman SkASSERT(advance); 1838f1491693527a70919de5d624a049cae38384474ebungeman *advance = gm.gmCellIncX; 1839f1491693527a70919de5d624a049cae38384474ebungeman return true; 1840f1491693527a70919de5d624a049cae38384474ebungeman }) 1841f1491693527a70919de5d624a049cae38384474ebungeman ); 1842ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1843ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1844ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comError: 1845390c6d7a9018e233a6519397ac6c739fb21a99efedisonn@google.comReturnInfo: 1846ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SelectObject(hdc, savefont); 1847ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteObject(designFont); 1848ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteObject(font); 1849ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteDC(hdc); 1850ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1851ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return info; 1852ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1853ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1854a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com//Dummy representation of a Base64 encoded GUID from create_unique_font_name. 1855a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#define BASE64_GUID_ID "XXXXXXXXXXXXXXXXXXXXXXXX" 185696fcdcc219d2a0d3579719b84b28bede76efba64halcanary//Length of GUID representation from create_id, including nullptr terminator. 1857a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#define BASE64_GUID_ID_LEN SK_ARRAY_COUNT(BASE64_GUID_ID) 1858a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 185999fe82260633fcf5d92cca38d12ef0937ecca61cbungemanstatic_assert(BASE64_GUID_ID_LEN < LF_FACESIZE, "GUID_longer_than_facesize"); 1860a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1861a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 1862a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com NameID 6 Postscript names cannot have the character '/'. 1863a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com It would be easier to hex encode the GUID, but that is 32 bytes, 1864a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com and many systems have issues with names longer than 28 bytes. 1865a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com The following need not be any standard base64 encoding. 1866a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com The encoded value is never decoded. 1867a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com*/ 1868d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.comstatic const char postscript_safe_base64_encode[] = 1869a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com "ABCDEFGHIJKLMNOPQRSTUVWXYZ" 1870a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com "abcdefghijklmnopqrstuvwxyz" 1871a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com "0123456789-_="; 1872a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1873a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 1874a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com Formats a GUID into Base64 and places it into buffer. 1875a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com buffer should have space for at least BASE64_GUID_ID_LEN characters. 1876a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com The string will always be null terminated. 1877a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com XXXXXXXXXXXXXXXXXXXXXXXX0 1878a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 1879a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comstatic void format_guid_b64(const GUID& guid, char* buffer, size_t bufferSize) { 1880a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com SkASSERT(bufferSize >= BASE64_GUID_ID_LEN); 1881a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com size_t written = SkBase64::Encode(&guid, sizeof(guid), buffer, postscript_safe_base64_encode); 1882a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com SkASSERT(written < LF_FACESIZE); 1883a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com buffer[written] = '\0'; 1884a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com} 1885a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1886a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 1887a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com Creates a Base64 encoded GUID and places it into buffer. 1888a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com buffer should have space for at least BASE64_GUID_ID_LEN characters. 1889a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com The string will always be null terminated. 1890a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com XXXXXXXXXXXXXXXXXXXXXXXX0 1891a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 1892a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comstatic HRESULT create_unique_font_name(char* buffer, size_t bufferSize) { 1893a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com GUID guid = {}; 1894a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com if (FAILED(CoCreateGuid(&guid))) { 1895a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return E_UNEXPECTED; 1896a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1897a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com format_guid_b64(guid, buffer, bufferSize); 1898a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1899a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return S_OK; 1900a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com} 1901a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1902a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 190396fcdcc219d2a0d3579719b84b28bede76efba64halcanary Introduces a font to GDI. On failure will return nullptr. The returned handle 1904a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com should eventually be passed to RemoveFontMemResourceEx. 1905a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com*/ 1906a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comstatic HANDLE activate_font(SkData* fontData) { 1907a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com DWORD numFonts = 0; 1908a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com //AddFontMemResourceEx just copies the data, but does not specify const. 1909a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com HANDLE fontHandle = AddFontMemResourceEx(const_cast<void*>(fontData->data()), 19104b18f5767ab1df7fedf0ff2e3a9eac7f7c500c36bungeman@google.com static_cast<DWORD>(fontData->size()), 1911a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 0, 1912a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com &numFonts); 1913a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 191496fcdcc219d2a0d3579719b84b28bede76efba64halcanary if (fontHandle != nullptr && numFonts < 1) { 1915a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com RemoveFontMemResourceEx(fontHandle); 191696fcdcc219d2a0d3579719b84b28bede76efba64halcanary return nullptr; 1917a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1918a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1919a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return fontHandle; 1920a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com} 1921a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1922a1193e4b0e34a7e4e1bd33e9708d7341679f8321scroggo// Does not affect ownership of stream. 19235f213d9627d2eefa7da81cd97f36754f75eb4ae9bungemanstatic SkTypeface* create_from_stream(SkStreamAsset* stream) { 1924a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Create a unique and unpredictable font name. 1925a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Avoids collisions and access from CSS. 1926a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com char familyName[BASE64_GUID_ID_LEN]; 1927a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com const int familyNameSize = SK_ARRAY_COUNT(familyName); 1928a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com if (FAILED(create_unique_font_name(familyName, familyNameSize))) { 192996fcdcc219d2a0d3579719b84b28bede76efba64halcanary return nullptr; 1930a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1931d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com 1932a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Change the name of the font. 1933e9bbee397ce96aa6642a42823feb1d7c4a8ffd8bbungeman@google.com SkAutoTUnref<SkData> rewrittenFontData(SkOTUtils::RenameFont(stream, familyName, familyNameSize-1)); 193496fcdcc219d2a0d3579719b84b28bede76efba64halcanary if (nullptr == rewrittenFontData.get()) { 193596fcdcc219d2a0d3579719b84b28bede76efba64halcanary return nullptr; 1936a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1937ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1938a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Register the font with GDI. 1939e9bbee397ce96aa6642a42823feb1d7c4a8ffd8bbungeman@google.com HANDLE fontReference = activate_font(rewrittenFontData.get()); 194096fcdcc219d2a0d3579719b84b28bede76efba64halcanary if (nullptr == fontReference) { 194196fcdcc219d2a0d3579719b84b28bede76efba64halcanary return nullptr; 1942a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1943a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1944a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Create the typeface. 1945a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com LOGFONT lf; 1946484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com logfont_for_name(familyName, &lf); 1947a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1948a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return SkCreateFontMemResourceTypefaceFromLOGFONT(lf, fontReference); 1949ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1950ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 19515f213d9627d2eefa7da81cd97f36754f75eb4ae9bungemanSkStreamAsset* LogFontTypeface::onOpenStream(int* ttcIndex) const { 19520042b9c2a2e6fe954cdfbcd5a5b7449cdf41a4c3reed@google.com *ttcIndex = 0; 19530042b9c2a2e6fe954cdfbcd5a5b7449cdf41a4c3reed@google.com 1954f4c2622a1a3489988f2d85a81fdc132b17a92bddctguil@chromium.org const DWORD kTTCTag = 1955f4c2622a1a3489988f2d85a81fdc132b17a92bddctguil@chromium.org SkEndian_SwapBE32(SkSetFourByteTag('t', 't', 'c', 'f')); 19560042b9c2a2e6fe954cdfbcd5a5b7449cdf41a4c3reed@google.com LOGFONT lf = fLogFont; 1957ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 195896fcdcc219d2a0d3579719b84b28bede76efba64halcanary HDC hdc = ::CreateCompatibleDC(nullptr); 195959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com HFONT font = CreateFontIndirect(&lf); 1960ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT savefont = (HFONT)SelectObject(hdc, font); 1961ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 196296fcdcc219d2a0d3579719b84b28bede76efba64halcanary SkMemoryStream* stream = nullptr; 1963d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org DWORD tables[2] = {kTTCTag, 0}; 1964d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org for (int i = 0; i < SK_ARRAY_COUNT(tables); i++) { 196596fcdcc219d2a0d3579719b84b28bede76efba64halcanary DWORD bufferSize = GetFontData(hdc, tables[i], 0, nullptr, 0); 196639698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (bufferSize == GDI_ERROR) { 1967055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com call_ensure_accessible(lf); 196896fcdcc219d2a0d3579719b84b28bede76efba64halcanary bufferSize = GetFontData(hdc, tables[i], 0, nullptr, 0); 196939698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 1970d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org if (bufferSize != GDI_ERROR) { 1971d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org stream = new SkMemoryStream(bufferSize); 19724b18f5767ab1df7fedf0ff2e3a9eac7f7c500c36bungeman@google.com if (GetFontData(hdc, tables[i], 0, (void*)stream->getMemoryBase(), bufferSize)) { 1973d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org break; 1974d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org } else { 1975d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org delete stream; 197696fcdcc219d2a0d3579719b84b28bede76efba64halcanary stream = nullptr; 1977d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org } 1978d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org } 1979ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1980ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1981ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SelectObject(hdc, savefont); 1982ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteObject(font); 1983ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteDC(hdc); 1984ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1985ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return stream; 1986ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1987ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 19883c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.comstatic void bmpCharsToGlyphs(HDC hdc, const WCHAR* bmpChars, int count, uint16_t* glyphs, 19893c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com bool Ox1FHack) 19903c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com{ 19913c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com DWORD result = GetGlyphIndicesW(hdc, bmpChars, count, glyphs, GGI_MARK_NONEXISTING_GLYPHS); 19923c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (GDI_ERROR == result) { 19933c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com for (int i = 0; i < count; ++i) { 19943c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com glyphs[i] = 0; 19953c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 19963c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com return; 19973c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 19983c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 19993c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (Ox1FHack) { 20003c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com for (int i = 0; i < count; ++i) { 20013c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (0xFFFF == glyphs[i] || 0x1F == glyphs[i]) { 20023c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com glyphs[i] = 0; 20033c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 20043c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 20053c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } else { 20063c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com for (int i = 0; i < count; ++i) { 20073c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (0xFFFF == glyphs[i]){ 20083c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com glyphs[i] = 0; 20093c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 20103c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 20113c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 20123c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com} 20133c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 20143c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.comstatic uint16_t nonBmpCharToGlyph(HDC hdc, SCRIPT_CACHE* scriptCache, const WCHAR utf16[2]) { 20153c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com uint16_t index = 0; 20163c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com // Use uniscribe to detemine glyph index for non-BMP characters. 20173c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com static const int numWCHAR = 2; 20183c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com static const int maxItems = 2; 201996fcdcc219d2a0d3579719b84b28bede76efba64halcanary // MSDN states that this can be nullptr, but some things don't work then. 20203c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com SCRIPT_CONTROL scriptControl = { 0 }; 20213c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com // Add extra item to SCRIPT_ITEM to work around a bug (now documented). 20223c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com // https://bugzilla.mozilla.org/show_bug.cgi?id=366643 20233c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com SCRIPT_ITEM si[maxItems + 1]; 20243c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com int numItems; 202596fcdcc219d2a0d3579719b84b28bede76efba64halcanary HRZM(ScriptItemize(utf16, numWCHAR, maxItems, &scriptControl, nullptr, si, &numItems), 20263c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com "Could not itemize character."); 20273c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 20283c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com // Sometimes ScriptShape cannot find a glyph for a non-BMP and returns 2 space glyphs. 20293c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com static const int maxGlyphs = 2; 20303c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com SCRIPT_VISATTR vsa[maxGlyphs]; 20313c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com WORD outGlyphs[maxGlyphs]; 20323c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com WORD logClust[numWCHAR]; 20333c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com int numGlyphs; 20343c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com HRZM(ScriptShape(hdc, scriptCache, utf16, numWCHAR, maxGlyphs, &si[0].a, 20353c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com outGlyphs, logClust, vsa, &numGlyphs), 20363c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com "Could not shape character."); 20373c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (1 == numGlyphs) { 20383c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com index = outGlyphs[0]; 20393c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 20403c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com return index; 20413c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com} 20423c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 20433c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.comclass SkAutoHDC { 20443c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.compublic: 20453c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com SkAutoHDC(const LOGFONT& lf) 204696fcdcc219d2a0d3579719b84b28bede76efba64halcanary : fHdc(::CreateCompatibleDC(nullptr)) 20473c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com , fFont(::CreateFontIndirect(&lf)) 20483c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com , fSavefont((HFONT)SelectObject(fHdc, fFont)) 20493c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com { } 20503c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com ~SkAutoHDC() { 20513c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com SelectObject(fHdc, fSavefont); 20523c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com DeleteObject(fFont); 20533c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com DeleteDC(fHdc); 20543c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 20553c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com operator HDC() { return fHdc; } 20563c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.comprivate: 20573c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com HDC fHdc; 20583c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com HFONT fFont; 20593c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com HFONT fSavefont; 20603c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com}; 2061e61a86cfa00ea393ecc4a71fca94e1d476a37ecccommit-bot@chromium.org#define SkAutoHDC(...) SK_REQUIRE_LOCAL_VAR(SkAutoHDC) 20623c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 20633c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.comint LogFontTypeface::onCharsToGlyphs(const void* chars, Encoding encoding, 20643c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com uint16_t userGlyphs[], int glyphCount) const 20653c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com{ 20663c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com SkAutoHDC hdc(fLogFont); 20673c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 20683c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com TEXTMETRIC tm; 20693c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (0 == GetTextMetrics(hdc, &tm)) { 20703c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com call_ensure_accessible(fLogFont); 20713c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (0 == GetTextMetrics(hdc, &tm)) { 20723c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com tm.tmPitchAndFamily = TMPF_TRUETYPE; 20733c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 20743c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 20753c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com bool Ox1FHack = !(tm.tmPitchAndFamily & TMPF_VECTOR) /*&& winVer < Vista */; 20763c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 20773c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com SkAutoSTMalloc<256, uint16_t> scratchGlyphs; 20783c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com uint16_t* glyphs; 207996fcdcc219d2a0d3579719b84b28bede76efba64halcanary if (userGlyphs != nullptr) { 20803c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com glyphs = userGlyphs; 20813c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } else { 20823c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com glyphs = scratchGlyphs.reset(glyphCount); 20833c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 20843c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 20853c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com SCRIPT_CACHE sc = 0; 20863c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com switch (encoding) { 20873c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com case SkTypeface::kUTF8_Encoding: { 20883c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com static const int scratchCount = 256; 20893c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com WCHAR scratch[scratchCount]; 20903c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com int glyphIndex = 0; 20913c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com const char* currentUtf8 = reinterpret_cast<const char*>(chars); 20923c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com SkUnichar currentChar; 20933c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (glyphCount) { 20943c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com currentChar = SkUTF8_NextUnichar(¤tUtf8); 20953c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 20963c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com while (glyphIndex < glyphCount) { 20973c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com // Try a run of bmp. 20983c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com int glyphsLeft = SkTMin(glyphCount - glyphIndex, scratchCount); 20993c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com int runLength = 0; 21003c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com while (runLength < glyphsLeft && currentChar <= 0xFFFF) { 21013c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com scratch[runLength] = static_cast<WCHAR>(currentChar); 21023c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com ++runLength; 21033c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (runLength < glyphsLeft) { 21043c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com currentChar = SkUTF8_NextUnichar(¤tUtf8); 21053c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21063c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21073c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (runLength) { 21083c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com bmpCharsToGlyphs(hdc, scratch, runLength, &glyphs[glyphIndex], Ox1FHack); 21093c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com glyphIndex += runLength; 21103c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21113c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 21123c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com // Try a run of non-bmp. 21133c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com while (glyphIndex < glyphCount && currentChar > 0xFFFF) { 21143c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com SkUTF16_FromUnichar(currentChar, reinterpret_cast<uint16_t*>(scratch)); 21153c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com glyphs[glyphIndex] = nonBmpCharToGlyph(hdc, &sc, scratch); 21163c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com ++glyphIndex; 21173c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (glyphIndex < glyphCount) { 21183c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com currentChar = SkUTF8_NextUnichar(¤tUtf8); 21193c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21203c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21213c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21223c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com break; 21233c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21243c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com case SkTypeface::kUTF16_Encoding: { 21253c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com int glyphIndex = 0; 21263c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com const WCHAR* currentUtf16 = reinterpret_cast<const WCHAR*>(chars); 21273c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com while (glyphIndex < glyphCount) { 21283c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com // Try a run of bmp. 21293c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com int glyphsLeft = glyphCount - glyphIndex; 21303c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com int runLength = 0; 21313c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com while (runLength < glyphsLeft && !SkUTF16_IsHighSurrogate(currentUtf16[runLength])) { 21323c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com ++runLength; 21333c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21343c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (runLength) { 21353c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com bmpCharsToGlyphs(hdc, currentUtf16, runLength, &glyphs[glyphIndex], Ox1FHack); 21363c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com glyphIndex += runLength; 21373c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com currentUtf16 += runLength; 21383c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21393c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 21403c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com // Try a run of non-bmp. 21413c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com while (glyphIndex < glyphCount && SkUTF16_IsHighSurrogate(*currentUtf16)) { 21423c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com glyphs[glyphIndex] = nonBmpCharToGlyph(hdc, &sc, currentUtf16); 21433c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com ++glyphIndex; 21443c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com currentUtf16 += 2; 21453c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21463c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21473c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com break; 21483c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21493c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com case SkTypeface::kUTF32_Encoding: { 21503c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com static const int scratchCount = 256; 21513c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com WCHAR scratch[scratchCount]; 21523c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com int glyphIndex = 0; 21533c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com const uint32_t* utf32 = reinterpret_cast<const uint32_t*>(chars); 21543c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com while (glyphIndex < glyphCount) { 21553c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com // Try a run of bmp. 21563c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com int glyphsLeft = SkTMin(glyphCount - glyphIndex, scratchCount); 21573c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com int runLength = 0; 21583c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com while (runLength < glyphsLeft && utf32[glyphIndex + runLength] <= 0xFFFF) { 21593c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com scratch[runLength] = static_cast<WCHAR>(utf32[glyphIndex + runLength]); 21603c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com ++runLength; 21613c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21623c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (runLength) { 21633c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com bmpCharsToGlyphs(hdc, scratch, runLength, &glyphs[glyphIndex], Ox1FHack); 21643c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com glyphIndex += runLength; 21653c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21663c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 21673c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com // Try a run of non-bmp. 21683c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com while (glyphIndex < glyphCount && utf32[glyphIndex] > 0xFFFF) { 21693c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com SkUTF16_FromUnichar(utf32[glyphIndex], reinterpret_cast<uint16_t*>(scratch)); 21703c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com glyphs[glyphIndex] = nonBmpCharToGlyph(hdc, &sc, scratch); 21713c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com ++glyphIndex; 21723c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21733c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21743c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com break; 21753c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21763c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com default: 2177f2b340fc885ad2a12d2d73974eff9c8f4c94192cdjsollen SK_ABORT("Invalid Text Encoding"); 21783c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21793c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 21803c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (sc) { 21813c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com ::ScriptFreeCache(&sc); 21823c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21833c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 21843c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com for (int i = 0; i < glyphCount; ++i) { 21853c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com if (0 == glyphs[i]) { 21863c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com return i; 21873c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21883c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com } 21893c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com return glyphCount; 21903c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com} 21913c996f8a15e5d8fada9550d978e9b5344b81d276bungeman@google.com 21927bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.comint LogFontTypeface::onCountGlyphs() const { 219396fcdcc219d2a0d3579719b84b28bede76efba64halcanary HDC hdc = ::CreateCompatibleDC(nullptr); 21947bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com HFONT font = CreateFontIndirect(&fLogFont); 21957bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com HFONT savefont = (HFONT)SelectObject(hdc, font); 21967bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 21977bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com unsigned int glyphCount = calculateGlyphCount(hdc, fLogFont); 21987bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 21997bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com SelectObject(hdc, savefont); 22007bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com DeleteObject(font); 22017bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com DeleteDC(hdc); 22027bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 22037bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com return glyphCount; 22047bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com} 22057bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 22067bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.comint LogFontTypeface::onGetUPEM() const { 220796fcdcc219d2a0d3579719b84b28bede76efba64halcanary HDC hdc = ::CreateCompatibleDC(nullptr); 22087bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com HFONT font = CreateFontIndirect(&fLogFont); 22097bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com HFONT savefont = (HFONT)SelectObject(hdc, font); 22107bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 22117bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com unsigned int upem = calculateUPEM(hdc, fLogFont); 22127bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 22137bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com SelectObject(hdc, savefont); 22147bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com DeleteObject(font); 22157bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com DeleteDC(hdc); 22167bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 22177bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com return upem; 22187bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com} 22197bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 2220839702b61934914118ec557dd641be322eba3b5fbungeman@google.comSkTypeface::LocalizedStrings* LogFontTypeface::onCreateFamilyNameIterator() const { 2221a980269c2498836101146adc729ef780fb89824ebungeman@google.com SkTypeface::LocalizedStrings* nameIter = 2222a980269c2498836101146adc729ef780fb89824ebungeman@google.com SkOTUtils::LocalizedStrings_NameTable::CreateForFamilyNames(*this); 222396fcdcc219d2a0d3579719b84b28bede76efba64halcanary if (nullptr == nameIter) { 2224a980269c2498836101146adc729ef780fb89824ebungeman@google.com SkString familyName; 2225a980269c2498836101146adc729ef780fb89824ebungeman@google.com this->getFamilyName(&familyName); 2226a980269c2498836101146adc729ef780fb89824ebungeman@google.com SkString language("und"); //undetermined 2227a980269c2498836101146adc729ef780fb89824ebungeman@google.com nameIter = new SkOTUtils::LocalizedStrings_SingleName(familyName, language); 2228a980269c2498836101146adc729ef780fb89824ebungeman@google.com } 2229a980269c2498836101146adc729ef780fb89824ebungeman@google.com return nameIter; 2230a980269c2498836101146adc729ef780fb89824ebungeman@google.com} 2231a980269c2498836101146adc729ef780fb89824ebungeman@google.com 2232b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.comint LogFontTypeface::onGetTableTags(SkFontTableTag tags[]) const { 2233b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com SkSFNTHeader header; 2234b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com if (sizeof(header) != this->onGetTableData(0, 0, sizeof(header), &header)) { 2235b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com return 0; 2236b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com } 2237b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com 2238b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com int numTables = SkEndian_SwapBE16(header.numTables); 2239b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com 2240b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com if (tags) { 2241b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com size_t size = numTables * sizeof(SkSFNTHeader::TableDirectoryEntry); 2242b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com SkAutoSTMalloc<0x20, SkSFNTHeader::TableDirectoryEntry> dir(numTables); 2243b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com if (size != this->onGetTableData(0, sizeof(header), size, dir.get())) { 2244b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com return 0; 2245b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com } 2246b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com 2247b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com for (int i = 0; i < numTables; ++i) { 2248b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com tags[i] = SkEndian_SwapBE32(dir[i].tag); 2249b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com } 2250b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com } 2251b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com return numTables; 2252b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com} 2253b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com 2254b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.comsize_t LogFontTypeface::onGetTableData(SkFontTableTag tag, size_t offset, 2255b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com size_t length, void* data) const 2256b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com{ 2257b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com LOGFONT lf = fLogFont; 2258b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com 225996fcdcc219d2a0d3579719b84b28bede76efba64halcanary HDC hdc = ::CreateCompatibleDC(nullptr); 2260b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com HFONT font = CreateFontIndirect(&lf); 2261b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com HFONT savefont = (HFONT)SelectObject(hdc, font); 2262b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com 2263b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com tag = SkEndian_SwapBE32(tag); 226496fcdcc219d2a0d3579719b84b28bede76efba64halcanary if (nullptr == data) { 2265b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com length = 0; 2266b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com } 22678b169311b59ab84e8ca6f3630a1e960cc1be751erobertphillips@google.com DWORD bufferSize = GetFontData(hdc, tag, (DWORD) offset, data, (DWORD) length); 2268b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com if (bufferSize == GDI_ERROR) { 2269b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com call_ensure_accessible(lf); 22708b169311b59ab84e8ca6f3630a1e960cc1be751erobertphillips@google.com bufferSize = GetFontData(hdc, tag, (DWORD) offset, data, (DWORD) length); 2271b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com } 2272b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com 2273b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com SelectObject(hdc, savefont); 2274b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com DeleteObject(font); 2275b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com DeleteDC(hdc); 2276b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com 2277b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com return bufferSize == GDI_ERROR ? 0 : bufferSize; 2278b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com} 2279b10b51f64dbd1cf44571a1eedb412378702d8cd4bungeman@google.com 2280a9322c2d86aaef1085c267dfc43cf0747f170a86reedSkScalerContext* LogFontTypeface::onCreateScalerContext(const SkScalerContextEffects& effects, 2281a9322c2d86aaef1085c267dfc43cf0747f170a86reed const SkDescriptor* desc) const { 2282a9322c2d86aaef1085c267dfc43cf0747f170a86reed SkScalerContext_GDI* ctx = new SkScalerContext_GDI(const_cast<LogFontTypeface*>(this), 2283a9322c2d86aaef1085c267dfc43cf0747f170a86reed effects, desc); 228484e22d847fc84727bc220947162363ee1fe068fcreed@google.com if (!ctx->isValid()) { 2285385fe4d4b62d7d1dd76116dd570df3290a2f487bhalcanary delete ctx; 228696fcdcc219d2a0d3579719b84b28bede76efba64halcanary ctx = nullptr; 228784e22d847fc84727bc220947162363ee1fe068fcreed@google.com } 228884e22d847fc84727bc220947162363ee1fe068fcreed@google.com return ctx; 2289ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 2290ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 22910da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.comvoid LogFontTypeface::onFilterRec(SkScalerContextRec* rec) const { 2292c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org if (rec->fFlags & SkScalerContext::kLCD_BGROrder_Flag || 2293c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org rec->fFlags & SkScalerContext::kLCD_Vertical_Flag) 2294c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org { 2295c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org rec->fMaskFormat = SkMask::kA8_Format; 2296c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org rec->fFlags |= SkScalerContext::kGenA8FromLCD_Flag; 2297c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org } 2298c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org 2299410780677af260e32948b02c0725ef6ad761260cbungeman unsigned flagsWeDontSupport = SkScalerContext::kVertical_Flag | 2300410780677af260e32948b02c0725ef6ad761260cbungeman SkScalerContext::kDevKernText_Flag | 2301f6f56878bc96386882721b15ba610984185d3dc9bungeman@google.com SkScalerContext::kForceAutohinting_Flag | 2302e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kEmbeddedBitmapText_Flag | 2303e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kEmbolden_Flag | 2304e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kLCD_BGROrder_Flag | 2305e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kLCD_Vertical_Flag; 2306e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com rec->fFlags &= ~flagsWeDontSupport; 2307e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com 2308e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkPaint::Hinting h = rec->getHinting(); 2309e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com switch (h) { 2310e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kNo_Hinting: 23110abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com break; 2312e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kSlight_Hinting: 23130abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // Only do slight hinting when axis aligned. 23147c86d8eb3a61eae188bc8af2cd0363858eaea07ebungeman@google.com // TODO: re-enable slight hinting when FontHostTest can pass. 23157c86d8eb3a61eae188bc8af2cd0363858eaea07ebungeman@google.com //if (!isAxisAligned(*rec)) { 23160abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com h = SkPaint::kNo_Hinting; 23177c86d8eb3a61eae188bc8af2cd0363858eaea07ebungeman@google.com //} 2318e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com break; 2319e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kNormal_Hinting: 2320e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kFull_Hinting: 23210abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // TODO: need to be able to distinguish subpixel positioned glyphs 23220abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // and linear metrics. 23230abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com //rec->fFlags &= ~SkScalerContext::kSubpixelPositioning_Flag; 2324e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com h = SkPaint::kNormal_Hinting; 2325e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com break; 2326e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com default: 23270c00f21fee3f5cfa3aa7e5d46ff94cb8cf340451tomhudson@google.com SkDEBUGFAIL("unknown hinting"); 2328e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com } 23290abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com //TODO: if this is a bitmap font, squash hinting and subpixel. 2330e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com rec->setHinting(h); 2331da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com 23329181aa84aa288d2bc3ab079b6b40a79ac87d8807reed@google.com// turn this off since GDI might turn A8 into BW! Need a bigger fix. 23339181aa84aa288d2bc3ab079b6b40a79ac87d8807reed@google.com#if 0 2334da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com // Disable LCD when rotated, since GDI's output is ugly 2335da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com if (isLCD(*rec) && !isAxisAligned(*rec)) { 2336da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com rec->fMaskFormat = SkMask::kA8_Format; 2337da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com } 23389181aa84aa288d2bc3ab079b6b40a79ac87d8807reed@google.com#endif 2339754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com 23400da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.com if (!fCanBeLCD && isLCD(*rec)) { 2341cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com rec->fMaskFormat = SkMask::kA8_Format; 2342cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com rec->fFlags &= ~SkScalerContext::kGenA8FromLCD_Flag; 2343754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } 2344754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com} 2345070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.com 2346070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.com/////////////////////////////////////////////////////////////////////////////// 2347070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.com 2348070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.com#include "SkFontMgr.h" 2349484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com#include "SkDataTable.h" 2350484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2351a980269c2498836101146adc729ef780fb89824ebungeman@google.comstatic bool valid_logfont_for_enum(const LOGFONT& lf) { 2352a980269c2498836101146adc729ef780fb89824ebungeman@google.com // TODO: Vector FON is unsupported and should not be listed. 2353a980269c2498836101146adc729ef780fb89824ebungeman@google.com return 2354a980269c2498836101146adc729ef780fb89824ebungeman@google.com // Ignore implicit vertical variants. 2355a980269c2498836101146adc729ef780fb89824ebungeman@google.com lf.lfFaceName[0] && lf.lfFaceName[0] != '@' 2356a980269c2498836101146adc729ef780fb89824ebungeman@google.com 2357a980269c2498836101146adc729ef780fb89824ebungeman@google.com // DEFAULT_CHARSET is used to get all fonts, but also implies all 2358a980269c2498836101146adc729ef780fb89824ebungeman@google.com // character sets. Filter assuming all fonts support ANSI_CHARSET. 2359a980269c2498836101146adc729ef780fb89824ebungeman@google.com && ANSI_CHARSET == lf.lfCharSet 2360a980269c2498836101146adc729ef780fb89824ebungeman@google.com ; 2361a980269c2498836101146adc729ef780fb89824ebungeman@google.com} 2362a980269c2498836101146adc729ef780fb89824ebungeman@google.com 2363a980269c2498836101146adc729ef780fb89824ebungeman@google.com/** An EnumFontFamExProc implementation which interprets builderParam as 2364a980269c2498836101146adc729ef780fb89824ebungeman@google.com * an SkTDArray<ENUMLOGFONTEX>* and appends logfonts which 2365a980269c2498836101146adc729ef780fb89824ebungeman@google.com * pass the valid_logfont_for_enum predicate. 2366a980269c2498836101146adc729ef780fb89824ebungeman@google.com */ 2367a980269c2498836101146adc729ef780fb89824ebungeman@google.comstatic int CALLBACK enum_family_proc(const LOGFONT* lf, const TEXTMETRIC*, 2368a980269c2498836101146adc729ef780fb89824ebungeman@google.com DWORD fontType, LPARAM builderParam) { 2369a980269c2498836101146adc729ef780fb89824ebungeman@google.com if (valid_logfont_for_enum(*lf)) { 2370a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com SkTDArray<ENUMLOGFONTEX>* array = (SkTDArray<ENUMLOGFONTEX>*)builderParam; 2371a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com *array->append() = *(ENUMLOGFONTEX*)lf; 2372484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2373484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return 1; // non-zero means continue 2374484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com} 2375484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2376484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comclass SkFontStyleSetGDI : public SkFontStyleSet { 2377484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.compublic: 2378a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com SkFontStyleSetGDI(const TCHAR familyName[]) { 2379a980269c2498836101146adc729ef780fb89824ebungeman@google.com LOGFONT lf; 2380a980269c2498836101146adc729ef780fb89824ebungeman@google.com sk_bzero(&lf, sizeof(lf)); 2381a980269c2498836101146adc729ef780fb89824ebungeman@google.com lf.lfCharSet = DEFAULT_CHARSET; 2382a980269c2498836101146adc729ef780fb89824ebungeman@google.com _tcscpy_s(lf.lfFaceName, familyName); 2383a980269c2498836101146adc729ef780fb89824ebungeman@google.com 238496fcdcc219d2a0d3579719b84b28bede76efba64halcanary HDC hdc = ::CreateCompatibleDC(nullptr); 2385a980269c2498836101146adc729ef780fb89824ebungeman@google.com ::EnumFontFamiliesEx(hdc, &lf, enum_family_proc, (LPARAM)&fArray, 0); 2386484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ::DeleteDC(hdc); 2387484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2388484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 238936352bf5e38f45a70ee4f4fc132a38048d38206dmtklein int count() override { 2390484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return fArray.count(); 2391484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2392484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 239336352bf5e38f45a70ee4f4fc132a38048d38206dmtklein void getStyle(int index, SkFontStyle* fs, SkString* styleName) override { 2394484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com if (fs) { 2395a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungeman *fs = get_style(fArray[index].elfLogFont); 2396a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com } 2397a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com if (styleName) { 2398a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com const ENUMLOGFONTEX& ref = fArray[index]; 2399a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com // For some reason, ENUMLOGFONTEX and LOGFONT disagree on their type in the 2400a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com // non-unicode version. 2401a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com // ENUMLOGFONTEX uses BYTE 2402a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com // LOGFONT uses CHAR 2403a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com // Here we assert they that the style name is logically the same (size) as 2404a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com // a TCHAR, so we can use the same converter function. 2405a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com SkASSERT(sizeof(TCHAR) == sizeof(ref.elfStyle[0])); 2406a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com tchar_to_skstring((const TCHAR*)ref.elfStyle, styleName); 2407484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2408484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2409484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 241036352bf5e38f45a70ee4f4fc132a38048d38206dmtklein SkTypeface* createTypeface(int index) override { 2411a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com return SkCreateTypefaceFromLOGFONT(fArray[index].elfLogFont); 2412484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2413484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 241436352bf5e38f45a70ee4f4fc132a38048d38206dmtklein SkTypeface* matchStyle(const SkFontStyle& pattern) override { 2415147ea2fb7ad9adeeb52fe5549f7ba20953296f6fbungeman return this->matchStyleCSS3(pattern); 2416484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2417484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2418484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comprivate: 2419a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com SkTDArray<ENUMLOGFONTEX> fArray; 2420484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com}; 2421484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2422484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comclass SkFontMgrGDI : public SkFontMgr { 2423a980269c2498836101146adc729ef780fb89824ebungeman@google.compublic: 2424a980269c2498836101146adc729ef780fb89824ebungeman@google.com SkFontMgrGDI() { 2425484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com LOGFONT lf; 2426484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com sk_bzero(&lf, sizeof(lf)); 2427484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com lf.lfCharSet = DEFAULT_CHARSET; 2428484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 242996fcdcc219d2a0d3579719b84b28bede76efba64halcanary HDC hdc = ::CreateCompatibleDC(nullptr); 2430484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ::EnumFontFamiliesEx(hdc, &lf, enum_family_proc, (LPARAM)&fLogFontArray, 0); 2431484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ::DeleteDC(hdc); 2432484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2433484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2434484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comprotected: 243536352bf5e38f45a70ee4f4fc132a38048d38206dmtklein int onCountFamilies() const override { 2436484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return fLogFontArray.count(); 2437484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2438484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 243936352bf5e38f45a70ee4f4fc132a38048d38206dmtklein void onGetFamilyName(int index, SkString* familyName) const override { 2440484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com SkASSERT((unsigned)index < (unsigned)fLogFontArray.count()); 2441a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com tchar_to_skstring(fLogFontArray[index].elfLogFont.lfFaceName, familyName); 2442484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2443484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 244436352bf5e38f45a70ee4f4fc132a38048d38206dmtklein SkFontStyleSet* onCreateStyleSet(int index) const override { 2445484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com SkASSERT((unsigned)index < (unsigned)fLogFontArray.count()); 2446385fe4d4b62d7d1dd76116dd570df3290a2f487bhalcanary return new SkFontStyleSetGDI(fLogFontArray[index].elfLogFont.lfFaceName); 2447484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2448484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 244936352bf5e38f45a70ee4f4fc132a38048d38206dmtklein SkFontStyleSet* onMatchFamily(const char familyName[]) const override { 245096fcdcc219d2a0d3579719b84b28bede76efba64halcanary if (nullptr == familyName) { 2451484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com familyName = ""; // do we need this check??? 2452484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2453484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com LOGFONT lf; 2454484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com logfont_for_name(familyName, &lf); 2455385fe4d4b62d7d1dd76116dd570df3290a2f487bhalcanary return new SkFontStyleSetGDI(lf.lfFaceName); 2456484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2457484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2458484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual SkTypeface* onMatchFamilyStyle(const char familyName[], 245936352bf5e38f45a70ee4f4fc132a38048d38206dmtklein const SkFontStyle& fontstyle) const override { 2460437eea160b2f605d9074106891288e85baaecfefreed@google.com // could be in base impl 2461484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com SkAutoTUnref<SkFontStyleSet> sset(this->matchFamily(familyName)); 2462484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return sset->matchStyle(fontstyle); 2463484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2464484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 246533068c19f1b8c18f000c18935ad11f1082534b5adjsollen virtual SkTypeface* onMatchFamilyStyleCharacter(const char familyName[], const SkFontStyle&, 246633068c19f1b8c18f000c18935ad11f1082534b5adjsollen const char* bcp47[], int bcp47Count, 246736352bf5e38f45a70ee4f4fc132a38048d38206dmtklein SkUnichar character) const override { 246896fcdcc219d2a0d3579719b84b28bede76efba64halcanary return nullptr; 246933068c19f1b8c18f000c18935ad11f1082534b5adjsollen } 247033068c19f1b8c18f000c18935ad11f1082534b5adjsollen 2471484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual SkTypeface* onMatchFaceStyle(const SkTypeface* familyMember, 247236352bf5e38f45a70ee4f4fc132a38048d38206dmtklein const SkFontStyle& fontstyle) const override { 2473437eea160b2f605d9074106891288e85baaecfefreed@google.com // could be in base impl 2474484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com SkString familyName; 2475484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ((LogFontTypeface*)familyMember)->getFamilyName(&familyName); 2476484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return this->matchFamilyStyle(familyName.c_str(), fontstyle); 2477484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2478484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 247936352bf5e38f45a70ee4f4fc132a38048d38206dmtklein SkTypeface* onCreateFromStream(SkStreamAsset* bareStream, int ttcIndex) const override { 24805f213d9627d2eefa7da81cd97f36754f75eb4ae9bungeman SkAutoTDelete<SkStreamAsset> stream(bareStream); 2481437eea160b2f605d9074106891288e85baaecfefreed@google.com return create_from_stream(stream); 2482484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2483437eea160b2f605d9074106891288e85baaecfefreed@google.com 248436352bf5e38f45a70ee4f4fc132a38048d38206dmtklein SkTypeface* onCreateFromData(SkData* data, int ttcIndex) const override { 2485437eea160b2f605d9074106891288e85baaecfefreed@google.com // could be in base impl 2486385fe4d4b62d7d1dd76116dd570df3290a2f487bhalcanary return this->createFromStream(new SkMemoryStream(data)); 2487484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2488437eea160b2f605d9074106891288e85baaecfefreed@google.com 248936352bf5e38f45a70ee4f4fc132a38048d38206dmtklein SkTypeface* onCreateFromFile(const char path[], int ttcIndex) const override { 2490437eea160b2f605d9074106891288e85baaecfefreed@google.com // could be in base impl 2491a1193e4b0e34a7e4e1bd33e9708d7341679f8321scroggo return this->createFromStream(SkStream::NewFromFile(path)); 2492484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2493484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 249411a77c6e0634e2feb6fe4e74806db2fdd2a799ecbungeman SkTypeface* onLegacyCreateTypeface(const char familyName[], SkFontStyle style) const override { 2495f7159bba8efc13f6b3a9a86e92b48451b6aa8073bungeman@google.com LOGFONT lf; 249696fcdcc219d2a0d3579719b84b28bede76efba64halcanary if (nullptr == familyName) { 2497f7159bba8efc13f6b3a9a86e92b48451b6aa8073bungeman@google.com lf = get_default_font(); 2498f7159bba8efc13f6b3a9a86e92b48451b6aa8073bungeman@google.com } else { 2499f7159bba8efc13f6b3a9a86e92b48451b6aa8073bungeman@google.com logfont_for_name(familyName, &lf); 2500f7159bba8efc13f6b3a9a86e92b48451b6aa8073bungeman@google.com } 2501a4c4a2d8cd65abb1e5ac20813831cdb9ace6c7eebungeman 250211a77c6e0634e2feb6fe4e74806db2fdd2a799ecbungeman lf.lfWeight = style.weight(); 2503b4bb7d825566042ed64697be49457dbac060e6c4bungeman lf.lfItalic = style.slant() == SkFontStyle::kUpright_Slant ? FALSE : TRUE; 2504f7159bba8efc13f6b3a9a86e92b48451b6aa8073bungeman@google.com return SkCreateTypefaceFromLOGFONT(lf); 250530ddd615c447fed73286151b463af20d309c85f1reed@google.com } 250630ddd615c447fed73286151b463af20d309c85f1reed@google.com 2507484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comprivate: 2508a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com SkTDArray<ENUMLOGFONTEX> fLogFontArray; 2509484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com}; 2510070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.com 251130ddd615c447fed73286151b463af20d309c85f1reed@google.com/////////////////////////////////////////////////////////////////////////////// 251230ddd615c447fed73286151b463af20d309c85f1reed@google.com 2513385fe4d4b62d7d1dd76116dd570df3290a2f487bhalcanarySkFontMgr* SkFontMgr_New_GDI() { return new SkFontMgrGDI; } 25141ee76510f5dbf632d30975fc3509ef4f609156d2mtklein 25151ee76510f5dbf632d30975fc3509ef4f609156d2mtklein#endif//defined(SK_BUILD_FOR_WIN32) 2516