SkFontHost_win.cpp revision 6a774a1f266070f304199ee31b8d1f4c0138b6cf
1ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com 2ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com/* 3ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com * Copyright 2006 The Android Open Source Project 4ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com * 5ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com * Use of this source code is governed by a BSD-style license that can be 6ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com * found in the LICENSE file. 7ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com */ 8ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 9ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkAdvancedTypefaceMetrics.h" 10a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include "SkBase64.h" 111bfe01d06b896eca94c80d9af9a6bb30216b5e42bungeman@google.com#include "SkColorPriv.h" 12a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include "SkData.h" 13a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include "SkDescriptor.h" 14e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com#include "SkFontDescriptor.h" 15a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include "SkFontHost.h" 16bbe50131413098bffed9186660c41f047d881596bungeman@google.com#include "SkGlyph.h" 1797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com#include "SkMaskGamma.h" 187bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com#include "SkOTTable_maxp.h" 19a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include "SkOTUtils.h" 2027889877c0e3c909dd4afd7b5e7b1d58cbf61ae6reed@google.com#include "SkPath.h" 21ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkStream.h" 22a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include "SkString.h" 2305a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com#include "SkTemplates.h" 24ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkThread.h" 25ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkTypeface_win.h" 2659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com#include "SkTypefaceCache.h" 27ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkUtils.h" 28ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 29a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include "SkTypes.h" 30a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include <tchar.h> 31a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include <usp10.h> 32a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include <objbase.h> 33ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 34f210f505ffffccc15ae5e91f8ccb9763ba7fc152reed@google.comstatic void (*gEnsureLOGFONTAccessibleProc)(const LOGFONT&); 35f210f505ffffccc15ae5e91f8ccb9763ba7fc152reed@google.com 36f210f505ffffccc15ae5e91f8ccb9763ba7fc152reed@google.comvoid SkTypeface_SetEnsureLOGFONTAccessibleProc(void (*proc)(const LOGFONT&)) { 37f210f505ffffccc15ae5e91f8ccb9763ba7fc152reed@google.com gEnsureLOGFONTAccessibleProc = proc; 38f210f505ffffccc15ae5e91f8ccb9763ba7fc152reed@google.com} 39f210f505ffffccc15ae5e91f8ccb9763ba7fc152reed@google.com 40055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.comstatic void call_ensure_accessible(const LOGFONT& lf) { 41055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com if (gEnsureLOGFONTAccessibleProc) { 42055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com gEnsureLOGFONTAccessibleProc(lf); 43055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com } 44055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com} 45055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com 46055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com/////////////////////////////////////////////////////////////////////////////// 47055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com 486f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com// always packed xxRRGGBB 496f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.comtypedef uint32_t SkGdiRGB; 506f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com 51a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com// define this in your Makefile or .gyp to enforce AA requests 52a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com// which GDI ignores at small sizes. This flag guarantees AA 53a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com// for rotated text, regardless of GDI's notions. 54a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com//#define SK_ENFORCE_ROTATED_TEXT_AA_ON_WINDOWS 55a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 5682a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.comstatic bool isLCD(const SkScalerContext::Rec& rec) { 5782a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com return SkMask::kLCD16_Format == rec.fMaskFormat || 5882a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com SkMask::kLCD32_Format == rec.fMaskFormat; 5982a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com} 6082a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 61a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.comstatic bool bothZero(SkScalar a, SkScalar b) { 62a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com return 0 == a && 0 == b; 63a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com} 64a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 65a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com// returns false if there is any non-90-rotation or skew 66a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.comstatic bool isAxisAligned(const SkScalerContext::Rec& rec) { 67a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com return 0 == rec.fPreSkewX && 68a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com (bothZero(rec.fPost2x2[0][1], rec.fPost2x2[1][0]) || 69a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com bothZero(rec.fPost2x2[0][0], rec.fPost2x2[1][1])); 70a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com} 71a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 72a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.comstatic bool needToRenderWithSkia(const SkScalerContext::Rec& rec) { 73a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com#ifdef SK_ENFORCE_ROTATED_TEXT_AA_ON_WINDOWS 74a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // What we really want to catch is when GDI will ignore the AA request and give 75a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // us BW instead. Smallish rotated text is one heuristic, so this code is just 76a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // an approximation. We shouldn't need to do this for larger sizes, but at those 77a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // sizes, the quality difference gets less and less between our general 78a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // scanconverter and GDI's. 79a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com if (SkMask::kA8_Format == rec.fMaskFormat && !isAxisAligned(rec)) { 80a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com return true; 81a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com } 82a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com#endif 830abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return rec.getHinting() == SkPaint::kNo_Hinting || rec.getHinting() == SkPaint::kSlight_Hinting; 84a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com} 85a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 86ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comusing namespace skia_advanced_typeface_metrics_utils; 87ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 88a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.comstatic void tchar_to_skstring(const TCHAR t[], SkString* s) { 89484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com#ifdef UNICODE 90484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com size_t sSize = WideCharToMultiByte(CP_UTF8, 0, t, -1, NULL, 0, NULL, NULL); 91484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com s->resize(sSize); 92484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com WideCharToMultiByte(CP_UTF8, 0, t, -1, s->writable_str(), sSize, NULL, NULL); 93484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com#else 94484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com s->set(t); 95484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com#endif 96484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com} 97484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 98ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic void make_canonical(LOGFONT* lf) { 990abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com lf->lfHeight = -2048; 10059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf->lfQuality = CLEARTYPE_QUALITY;//PROOF_QUALITY; 10159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf->lfCharSet = DEFAULT_CHARSET; 10282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com// lf->lfClipPrecision = 64; 10359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com} 10459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 10590d812b77ab025d5fd01dab904287f5c5bf56228bungeman@google.comstatic SkTypeface::Style get_style(const LOGFONT& lf) { 10659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com unsigned style = 0; 10759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com if (lf.lfWeight >= FW_BOLD) { 10859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com style |= SkTypeface::kBold; 10959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } 11059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com if (lf.lfItalic) { 11159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com style |= SkTypeface::kItalic; 11259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } 11390d812b77ab025d5fd01dab904287f5c5bf56228bungeman@google.com return static_cast<SkTypeface::Style>(style); 11459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com} 11559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 11659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.comstatic void setStyle(LOGFONT* lf, SkTypeface::Style style) { 11759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf->lfWeight = (style & SkTypeface::kBold) != 0 ? FW_BOLD : FW_NORMAL ; 11859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf->lfItalic = ((style & SkTypeface::kItalic) != 0); 119ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 120ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 121ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic inline FIXED SkFixedToFIXED(SkFixed x) { 122ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return *(FIXED*)(&x); 123ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 124a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.comstatic inline SkFixed SkFIXEDToFixed(FIXED x) { 125a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com return *(SkFixed*)(&x); 126a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com} 127ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 128ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic inline FIXED SkScalarToFIXED(SkScalar x) { 129ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkFixedToFIXED(SkScalarToFixed(x)); 130ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 131ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1327bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.comstatic unsigned calculateGlyphCount(HDC hdc, const LOGFONT& lf) { 1337bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com TEXTMETRIC textMetric; 1347bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com if (0 == GetTextMetrics(hdc, &textMetric)) { 1357bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com textMetric.tmPitchAndFamily = TMPF_VECTOR; 1367bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com call_ensure_accessible(lf); 1377bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com GetTextMetrics(hdc, &textMetric); 1387bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com } 1397bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 1407bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com if (!(textMetric.tmPitchAndFamily & TMPF_VECTOR)) { 1417bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com return textMetric.tmLastChar; 1427bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com } 1437bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 144ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // The 'maxp' table stores the number of glyphs at offset 4, in 2 bytes. 145ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com uint16_t glyphs; 1467bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com if (GDI_ERROR != GetFontData(hdc, SkOTTableMaximumProfile::TAG, 4, &glyphs, sizeof(glyphs))) { 147ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkEndian_SwapBE16(glyphs); 148ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1495aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org 150ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Binary search for glyph count. 151ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com static const MAT2 mat2 = {{0, 1}, {0, 0}, {0, 0}, {0, 1}}; 152ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int32_t max = SK_MaxU16 + 1; 153ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int32_t min = 0; 154ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com GLYPHMETRICS gm; 155ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com while (min < max) { 156ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int32_t mid = min + ((max - min) / 2); 157ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (GetGlyphOutlineW(hdc, mid, GGO_METRICS | GGO_GLYPH_INDEX, &gm, 0, 158ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com NULL, &mat2) == GDI_ERROR) { 159ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com max = mid; 160ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 161ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com min = mid + 1; 162ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 163ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 164ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(min == max); 165ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return min; 166ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 167ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1687bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.comstatic unsigned calculateUPEM(HDC hdc, const LOGFONT& lf) { 1697bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com TEXTMETRIC textMetric; 1707bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com if (0 == GetTextMetrics(hdc, &textMetric)) { 1717bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com textMetric.tmPitchAndFamily = TMPF_VECTOR; 1727bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com call_ensure_accessible(lf); 1737bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com GetTextMetrics(hdc, &textMetric); 1747bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com } 1757bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 1767bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com if (!(textMetric.tmPitchAndFamily & TMPF_VECTOR)) { 1777bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com return textMetric.tmMaxCharWidth; 1787bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com } 1797bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 1807bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com OUTLINETEXTMETRIC otm; 1817bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com unsigned int otmRet = GetOutlineTextMetrics(hdc, sizeof(otm), &otm); 1827bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com if (0 == otmRet) { 1837bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com call_ensure_accessible(lf); 1847bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com otmRet = GetOutlineTextMetrics(hdc, sizeof(otm), &otm); 1857bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com } 1867bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 1877bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com return (0 == otmRet) ? 0 : otm.otmEMSquare; 1887bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com} 1897bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 190ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comclass LogFontTypeface : public SkTypeface { 191ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.compublic: 192cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com LogFontTypeface(SkTypeface::Style style, SkFontID fontID, const LOGFONT& lf, bool serializeAsStream = false) : 193cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com SkTypeface(style, fontID, false), fLogFont(lf), fSerializeAsStream(serializeAsStream) { 194cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com 195cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com // If the font has cubic outlines, it will not be rendered with ClearType. 196cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com HFONT font = CreateFontIndirect(&lf); 197cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com 198cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com HDC deviceContext = ::CreateCompatibleDC(NULL); 199cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com HFONT savefont = (HFONT)SelectObject(deviceContext, font); 200cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com 201cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com TEXTMETRIC textMetric; 202cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com if (0 == GetTextMetrics(deviceContext, &textMetric)) { 203055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com call_ensure_accessible(lf); 204cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com if (0 == GetTextMetrics(deviceContext, &textMetric)) { 205cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com textMetric.tmPitchAndFamily = TMPF_TRUETYPE; 206cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com } 207cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com } 208cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com if (deviceContext) { 209cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com ::SelectObject(deviceContext, savefont); 210cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com ::DeleteDC(deviceContext); 211cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com } 212cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com if (font) { 213cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com ::DeleteObject(font); 214cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com } 215cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com 216fe74765f0d302669ae49e68074492bdfe0ce6e6fbungeman@google.com // The fixed pitch bit is set if the font is *not* fixed pitch. 217fe74765f0d302669ae49e68074492bdfe0ce6e6fbungeman@google.com this->setIsFixedPitch((textMetric.tmPitchAndFamily & TMPF_FIXED_PITCH) == 0); 218fe74765f0d302669ae49e68074492bdfe0ce6e6fbungeman@google.com 219cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com // Used a logfont on a memory context, should never get a device font. 220cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com // Therefore all TMPF_DEVICE will be PostScript (cubic) fonts. 221cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com fCanBeLCD = !((textMetric.tmPitchAndFamily & TMPF_VECTOR) && 222cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com (textMetric.tmPitchAndFamily & TMPF_DEVICE)); 223cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com } 224ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 225484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com void getFamilyName(SkString* name) const { 226484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com tchar_to_skstring(fLogFont.lfFaceName, name); 227484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 228484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 22959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LOGFONT fLogFont; 230e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com bool fSerializeAsStream; 231cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com bool fCanBeLCD; 232ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 23359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com static LogFontTypeface* Create(const LOGFONT& lf) { 23490d812b77ab025d5fd01dab904287f5c5bf56228bungeman@google.com SkTypeface::Style style = get_style(lf); 23559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com SkFontID fontID = SkTypefaceCache::NewFontID(); 23659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com return new LogFontTypeface(style, fontID, lf); 237ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 2380da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.com 239055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com static void EnsureAccessible(const SkTypeface* face) { 240055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com call_ensure_accessible(static_cast<const LogFontTypeface*>(face)->fLogFont); 241055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com } 242055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com 2430da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.comprotected: 2440042b9c2a2e6fe954cdfbcd5a5b7449cdf41a4c3reed@google.com virtual SkStream* onOpenStream(int* ttcIndex) const SK_OVERRIDE; 2450da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.com virtual SkScalerContext* onCreateScalerContext(const SkDescriptor*) const SK_OVERRIDE; 2460da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.com virtual void onFilterRec(SkScalerContextRec*) const SK_OVERRIDE; 2472689f615e364dc48ad73826564f5b13d2329179dreed@google.com virtual SkAdvancedTypefaceMetrics* onGetAdvancedTypefaceMetrics( 2482689f615e364dc48ad73826564f5b13d2329179dreed@google.com SkAdvancedTypefaceMetrics::PerGlyphInfo, 2492689f615e364dc48ad73826564f5b13d2329179dreed@google.com const uint32_t*, uint32_t) const SK_OVERRIDE; 2505526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.com virtual void onGetFontDescriptor(SkFontDescriptor*, bool*) const SK_OVERRIDE; 2517bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com virtual int onCountGlyphs() const SK_OVERRIDE; 2527bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com virtual int onGetUPEM() const SK_OVERRIDE; 253ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com}; 254ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 255a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comclass FontMemResourceTypeface : public LogFontTypeface { 256a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.compublic: 257a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com /** 258a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com * Takes ownership of fontMemResource. 259a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 260a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com FontMemResourceTypeface(SkTypeface::Style style, SkFontID fontID, const LOGFONT& lf, HANDLE fontMemResource) : 261cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com LogFontTypeface(style, fontID, lf, true), fFontMemResource(fontMemResource) { 262e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com } 263a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 264a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com HANDLE fFontMemResource; 265a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 266a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com /** 267a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com * The created FontMemResourceTypeface takes ownership of fontMemResource. 268a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 269a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com static FontMemResourceTypeface* Create(const LOGFONT& lf, HANDLE fontMemResource) { 270a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com SkTypeface::Style style = get_style(lf); 271a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com SkFontID fontID = SkTypefaceCache::NewFontID(); 272a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return new FontMemResourceTypeface(style, fontID, lf, fontMemResource); 273a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 274a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 275a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comprotected: 276a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com virtual void weak_dispose() const SK_OVERRIDE { 277a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com RemoveFontMemResourceEx(fFontMemResource); 278a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com //SkTypefaceCache::Remove(this); 279a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com INHERITED::weak_dispose(); 280a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 281a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 282a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comprivate: 283a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com typedef LogFontTypeface INHERITED; 284a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com}; 285a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 286ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic const LOGFONT& get_default_font() { 287ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com static LOGFONT gDefaultFont; 288ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return gDefaultFont; 289ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 290ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 29159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.comstatic bool FindByLogFont(SkTypeface* face, SkTypeface::Style requestedStyle, void* ctx) { 292a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com LogFontTypeface* lface = static_cast<LogFontTypeface*>(face); 29359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com const LOGFONT* lf = reinterpret_cast<const LOGFONT*>(ctx); 294ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 295a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return lface && 296a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com get_style(lface->fLogFont) == requestedStyle && 29759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com !memcmp(&lface->fLogFont, lf, sizeof(LOGFONT)); 29859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com} 29959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 30059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com/** 30159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com * This guy is public. It first searches the cache, and if a match is not found, 30259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com * it creates a new face. 30359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com */ 30459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.comSkTypeface* SkCreateTypefaceFromLOGFONT(const LOGFONT& origLF) { 30559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LOGFONT lf = origLF; 30659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com make_canonical(&lf); 307ee51d1a6e43615ae640410013c36d2d9873e6aa5bungeman@google.com SkTypeface* face = SkTypefaceCache::FindByProcAndRef(FindByLogFont, &lf); 308ee51d1a6e43615ae640410013c36d2d9873e6aa5bungeman@google.com if (NULL == face) { 30959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com face = LogFontTypeface::Create(lf); 31090d812b77ab025d5fd01dab904287f5c5bf56228bungeman@google.com SkTypefaceCache::Add(face, get_style(lf)); 31159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } 31259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com return face; 313ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 314ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 315db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com/** 316a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com * The created SkTypeface takes ownership of fontMemResource. 317a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 318a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comSkTypeface* SkCreateFontMemResourceTypefaceFromLOGFONT(const LOGFONT& origLF, HANDLE fontMemResource) { 319a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com LOGFONT lf = origLF; 320a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com make_canonical(&lf); 321a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com FontMemResourceTypeface* face = FontMemResourceTypeface::Create(lf, fontMemResource); 322a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com SkTypefaceCache::Add(face, get_style(lf), false); 323a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return face; 324a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com} 325a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 326a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 327db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com * This guy is public 328db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com */ 329db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.comvoid SkLOGFONTFromTypeface(const SkTypeface* face, LOGFONT* lf) { 330db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com if (NULL == face) { 331db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com *lf = get_default_font(); 332db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com } else { 333a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com *lf = static_cast<const LogFontTypeface*>(face)->fLogFont; 334db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com } 335db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com} 336db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com 33759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.comstatic void GetLogFontByID(SkFontID fontID, LOGFONT* lf) { 338a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com LogFontTypeface* face = static_cast<LogFontTypeface*>(SkTypefaceCache::FindByID(fontID)); 33959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com if (face) { 34059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com *lf = face->fLogFont; 34159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } else { 34259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com sk_bzero(lf, sizeof(LOGFONT)); 34359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } 34459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com} 34559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 3466744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// Construct Glyph to Unicode table. 3476744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// Unicode code points that require conjugate pairs in utf16 are not 3486744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// supported. 3496744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// TODO(arthurhsu): Add support for conjugate pairs. It looks like that may 3506744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// require parsing the TTF cmap table (platform 4, encoding 12) directly instead 3516744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// of calling GetFontUnicodeRange(). 3526744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.orgstatic void populate_glyph_to_unicode(HDC fontHdc, const unsigned glyphCount, 3536744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkTDArray<SkUnichar>* glyphToUnicode) { 3546744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org DWORD glyphSetBufferSize = GetFontUnicodeRanges(fontHdc, NULL); 3556744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org if (!glyphSetBufferSize) { 3566744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org return; 3576744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 3586744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 3596744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkAutoTDeleteArray<BYTE> glyphSetBuffer(new BYTE[glyphSetBufferSize]); 3606744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org GLYPHSET* glyphSet = 3616744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org reinterpret_cast<LPGLYPHSET>(glyphSetBuffer.get()); 3626744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org if (GetFontUnicodeRanges(fontHdc, glyphSet) != glyphSetBufferSize) { 3636744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org return; 3646744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 3656744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 3666744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org glyphToUnicode->setCount(glyphCount); 3676744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org memset(glyphToUnicode->begin(), 0, glyphCount * sizeof(SkUnichar)); 3686744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org for (DWORD i = 0; i < glyphSet->cRanges; ++i) { 3696744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // There is no guarantee that within a Unicode range, the corresponding 3706744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // glyph id in a font file are continuous. So, even if we have ranges, 3716744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // we can't just use the first and last entry of the range to compute 3726744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // result. We need to enumerate them one by one. 3736744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org int count = glyphSet->ranges[i].cGlyphs; 3746744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkAutoTArray<WCHAR> chars(count + 1); 3756744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org chars[count] = 0; // termintate string 3766744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkAutoTArray<WORD> glyph(count); 3776744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org for (USHORT j = 0; j < count; ++j) { 3786744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org chars[j] = glyphSet->ranges[i].wcLow + j; 3796744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 3806744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org GetGlyphIndicesW(fontHdc, chars.get(), count, glyph.get(), 3816744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org GGI_MARK_NONEXISTING_GLYPHS); 3826744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // If the glyph ID is valid, and the glyph is not mapped, then we will 3836744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // fill in the char id into the vector. If the glyph is mapped already, 3846744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // skip it. 3856744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // TODO(arthurhsu): better improve this. e.g. Get all used char ids from 3866744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // font cache, then generate this mapping table from there. It's 3876744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // unlikely to have collisions since glyph reuse happens mostly for 3886744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // different Unicode pages. 3896744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org for (USHORT j = 0; j < count; ++j) { 3906744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org if (glyph[j] != 0xffff && glyph[j] < glyphCount && 3916744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org (*glyphToUnicode)[glyph[j]] == 0) { 3926744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org (*glyphToUnicode)[glyph[j]] = chars[j]; 3936744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 3946744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 3956744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 3966744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org} 3976744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 39899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com////////////////////////////////////////////////////////////////////////////////////// 39999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 40099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.comstatic int alignTo32(int n) { 40199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com return (n + 31) & ~31; 40299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com} 40399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 40499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.comstruct MyBitmapInfo : public BITMAPINFO { 40599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com RGBQUAD fMoreSpaceForColors[1]; 40699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com}; 40799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 40899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.comclass HDCOffscreen { 40999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.compublic: 41099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HDCOffscreen() { 41199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fFont = 0; 41299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fDC = 0; 41399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fBM = 0; 41499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fBits = NULL; 41599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fWidth = fHeight = 0; 41699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fIsBW = false; 41799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 41899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 41999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com ~HDCOffscreen() { 42099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (fDC) { 42199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com DeleteDC(fDC); 42299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 42399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (fBM) { 42499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com DeleteObject(fBM); 42599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 42699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 42799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 42899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com void init(HFONT font, const XFORM& xform) { 42999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fFont = font; 43099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fXform = xform; 43199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 43299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 43397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const void* draw(const SkGlyph&, bool isBW, size_t* srcRBPtr); 43499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 43599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.comprivate: 43699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HDC fDC; 43799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HBITMAP fBM; 43899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HFONT fFont; 43999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com XFORM fXform; 44099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com void* fBits; // points into fBM 44199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com int fWidth; 44299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com int fHeight; 44399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com bool fIsBW; 44499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com}; 44599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 446754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.comconst void* HDCOffscreen::draw(const SkGlyph& glyph, bool isBW, 44797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com size_t* srcRBPtr) { 44884e22d847fc84727bc220947162363ee1fe068fcreed@google.com // Can we share the scalercontext's fDDC, so we don't need to create 44984e22d847fc84727bc220947162363ee1fe068fcreed@google.com // a separate fDC here? 45099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (0 == fDC) { 45199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fDC = CreateCompatibleDC(0); 45299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (0 == fDC) { 45399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com return NULL; 45499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 45599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SetGraphicsMode(fDC, GM_ADVANCED); 45699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SetBkMode(fDC, TRANSPARENT); 45799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SetTextAlign(fDC, TA_LEFT | TA_BASELINE); 45899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SelectObject(fDC, fFont); 45997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com 46097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com COLORREF color = 0x00FFFFFF; 461b58a639b2fbe919489654bb506efdb024a308a8ebsalomon@google.com SkDEBUGCODE(COLORREF prev =) SetTextColor(fDC, color); 46297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com SkASSERT(prev != CLR_INVALID); 46399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 46499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 46599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (fBM && (fIsBW != isBW || fWidth < glyph.fWidth || fHeight < glyph.fHeight)) { 46699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com DeleteObject(fBM); 46799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fBM = 0; 46899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 469754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com fIsBW = isBW; 47099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 47199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fWidth = SkMax32(fWidth, glyph.fWidth); 47299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fHeight = SkMax32(fHeight, glyph.fHeight); 47399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 47499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com int biWidth = isBW ? alignTo32(fWidth) : fWidth; 47599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 47699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (0 == fBM) { 47799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com MyBitmapInfo info; 47899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com sk_bzero(&info, sizeof(info)); 47999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (isBW) { 48099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com RGBQUAD blackQuad = { 0, 0, 0, 0 }; 48199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com RGBQUAD whiteQuad = { 0xFF, 0xFF, 0xFF, 0 }; 48299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiColors[0] = blackQuad; 48399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiColors[1] = whiteQuad; 48499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 48599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biSize = sizeof(info.bmiHeader); 48699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biWidth = biWidth; 48799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biHeight = fHeight; 48899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biPlanes = 1; 48999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biBitCount = isBW ? 1 : 32; 49099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biCompression = BI_RGB; 49199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (isBW) { 49299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biClrUsed = 2; 49399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 49499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fBM = CreateDIBSection(fDC, &info, DIB_RGB_COLORS, &fBits, 0, 0); 49599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (0 == fBM) { 49699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com return NULL; 49799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 49899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SelectObject(fDC, fBM); 49999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 50099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 50199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com // erase 50299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com size_t srcRB = isBW ? (biWidth >> 3) : (fWidth << 2); 50399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com size_t size = fHeight * srcRB; 50497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com memset(fBits, 0, size); 50599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 50699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com XFORM xform = fXform; 50799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com xform.eDx = (float)-glyph.fLeft; 50899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com xform.eDy = (float)-glyph.fTop; 50999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SetWorldTransform(fDC, &xform); 51099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 51199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com uint16_t glyphID = glyph.getGlyphID(); 51239698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com BOOL ret = ExtTextOutW(fDC, 0, 0, ETO_GLYPH_INDEX, NULL, reinterpret_cast<LPCWSTR>(&glyphID), 1, NULL); 51399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com GdiFlush(); 51439698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (0 == ret) { 51539698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com return NULL; 51639698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 51799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com *srcRBPtr = srcRB; 51899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com // offset to the start of the image 51999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com return (const char*)fBits + (fHeight - glyph.fHeight) * srcRB; 52099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com} 52199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 522b8a5c618d2e18d71707ae4dcafbe5153d7ff427freed@google.com////////////////////////////////////////////////////////////////////////////// 5230abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#define BUFFERSIZE (1 << 13) 52459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 525ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comclass SkScalerContext_Windows : public SkScalerContext { 526ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.compublic: 5270da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.com SkScalerContext_Windows(SkTypeface*, const SkDescriptor* desc); 528ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com virtual ~SkScalerContext_Windows(); 529ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 53084e22d847fc84727bc220947162363ee1fe068fcreed@google.com // Returns true if the constructor was able to complete all of its 53184e22d847fc84727bc220947162363ee1fe068fcreed@google.com // initializations (which may include calling GDI). 53284e22d847fc84727bc220947162363ee1fe068fcreed@google.com bool isValid() const; 53384e22d847fc84727bc220947162363ee1fe068fcreed@google.com 534ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comprotected: 53597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com virtual unsigned generateGlyphCount() SK_OVERRIDE; 53697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com virtual uint16_t generateCharToGlyph(SkUnichar uni) SK_OVERRIDE; 53797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com virtual void generateAdvance(SkGlyph* glyph) SK_OVERRIDE; 53897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com virtual void generateMetrics(SkGlyph* glyph) SK_OVERRIDE; 539a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com virtual void generateImage(const SkGlyph& glyph) SK_OVERRIDE; 54097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com virtual void generatePath(const SkGlyph& glyph, SkPath* path) SK_OVERRIDE; 541a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com virtual void generateFontMetrics(SkPaint::FontMetrics* mX, 542a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com SkPaint::FontMetrics* mY) SK_OVERRIDE; 54399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 544ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comprivate: 5450abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com DWORD getGDIGlyphPath(const SkGlyph& glyph, UINT flags, 5460abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkAutoSTMalloc<BUFFERSIZE, uint8_t>* glyphbuf); 5470abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 54899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HDCOffscreen fOffscreen; 5490abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com /** fGsA is the non-rotational part of total matrix without the text height scale. 5500abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com * Used to find the magnitude of advances. 5510abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com */ 5520abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com MAT2 fGsA; 5536a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com /** The total matrix without the textSize. */ 554ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com MAT2 fMat22; 5556a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com /** Scales font to EM size. */ 5566a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com MAT2 fHighResMat22; 557ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HDC fDDC; 558ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT fSavefont; 559ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT fFont; 560ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SCRIPT_CACHE fSC; 561ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int fGlyphCount; 5621dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 5636a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com /** The total matrix which also removes EM scale. */ 5641dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com SkMatrix fHiResMatrix; 5650abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com /** fG_inv is the inverse of the rotational part of the total matrix. 5660abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com * Used to set the direction of advances. 5670abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com */ 5680abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkMatrix fG_inv; 569a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com enum Type { 570a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com kTrueType_Type, kBitmap_Type, 571a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } fType; 572a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com TEXTMETRIC fTM; 573ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com}; 574ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 575ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic FIXED float2FIXED(float x) { 576ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkFixedToFIXED(SkFloatToFixed(x)); 577ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 578ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 57982a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.comstatic BYTE compute_quality(const SkScalerContext::Rec& rec) { 58082a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com switch (rec.fMaskFormat) { 58182a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com case SkMask::kBW_Format: 58282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com return NONANTIALIASED_QUALITY; 58382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com case SkMask::kLCD16_Format: 58482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com case SkMask::kLCD32_Format: 58582a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com return CLEARTYPE_QUALITY; 58682a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com default: 5878351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com if (rec.fFlags & SkScalerContext::kGenA8FromLCD_Flag) { 5888351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com return CLEARTYPE_QUALITY; 5898351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com } else { 5908351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com return ANTIALIASED_QUALITY; 5918351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com } 59282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com } 59382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com} 59482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 595055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.comSkScalerContext_Windows::SkScalerContext_Windows(SkTypeface* rawTypeface, 5960da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.com const SkDescriptor* desc) 597055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com : SkScalerContext(rawTypeface, desc) 598055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com , fDDC(0) 599055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com , fSavefont(0) 60084e22d847fc84727bc220947162363ee1fe068fcreed@google.com , fFont(0) 601055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com , fSC(0) 60205a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com , fGlyphCount(-1) 60305a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com{ 604055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com LogFontTypeface* typeface = reinterpret_cast<LogFontTypeface*>(rawTypeface); 605055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com 606ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fDDC = ::CreateCompatibleDC(NULL); 60784e22d847fc84727bc220947162363ee1fe068fcreed@google.com if (!fDDC) { 60884e22d847fc84727bc220947162363ee1fe068fcreed@google.com return; 60984e22d847fc84727bc220947162363ee1fe068fcreed@google.com } 6101dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com SetGraphicsMode(fDDC, GM_ADVANCED); 611ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SetBkMode(fDDC, TRANSPARENT); 61227e21fe577211c1c40cbf40d0385b02c69d04522skia.committer@gmail.com 6130abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkPoint h = SkPoint::Make(SK_Scalar1, 0); 6140abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // A is the total matrix. 6150abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkMatrix A; 6160abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fRec.getSingleMatrix(&A); 6170abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com A.mapPoints(&h, 1); 6180abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 6190abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // Find the Given's matrix [[c, -s],[s, c]] which rotates the baseline vector h 6200abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // (where the baseline is mapped to) to the positive horizontal axis. 6210abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const SkScalar& a = h.fX; 6220abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const SkScalar& b = h.fY; 6230abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkScalar c, s; 6240abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (0 == b) { 6250abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com c = SkDoubleToScalar(_copysign(SK_Scalar1, a)); 6260abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com s = 0; 6270abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } else if (0 == a) { 6280abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com c = 0; 6290abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com s = SkDoubleToScalar(-_copysign(SK_Scalar1, b)); 6300abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } else if (SkScalarAbs(b) > SkScalarAbs(a)) { 6310abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkScalar t = a / b; 6320abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkScalar u = SkDoubleToScalar(_copysign(SkScalarSqrt(SK_Scalar1 + t*t), b)); 6330abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com s = -1 / u; 6340abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com c = -s * t; 6350abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } else { 6360abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkScalar t = b / a; 6370abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkScalar u = SkDoubleToScalar(_copysign(SkScalarSqrt(SK_Scalar1 + t*t), a)); 6380abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com c = 1 / u; 6390abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com s = -c * t; 6400abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 6410abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 6420abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // G is the Given's Matrix for A (rotational matrix such that GA[0][1] == 0). 6430abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkMatrix G; 6440abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com G.setAll(c, -s, 0, 6450abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com s, c, 0, 6460abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 0, 0, SkScalarToPersp(SK_Scalar1)); 6470abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 6480abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // GA is the matrix A with rotation removed. 6490abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkMatrix GA(G); 6500abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GA.preConcat(A); 6510abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 6520abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // textSize is the actual device size we want (as opposed to the size the user requested). 6530abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // If the scale is negative, this means the matrix will do the flip anyway. 6540abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkScalar textSize = SkScalarAbs(SkScalarRoundToScalar(GA.get(SkMatrix::kMScaleY))); 6550abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (textSize == 0) { 6560abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com textSize = SK_Scalar1; 6570abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 6580abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 6590abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // sA is the total matrix A without the textSize (so GDI knows the text size separately). 6600abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // When this matrix is used with GetGlyphOutline, no further processing is needed. 6610abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkMatrix sA(A); 6620abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkScalar scale = SkScalarInvert(textSize); 6630abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com sA.preScale(scale, scale); //remove text size 6640abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 6650abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // GsA is the non-rotational part of A without the text height scale. 6660abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // This is what is used to find the magnitude of advances. 6670abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkMatrix GsA(GA); 6680abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GsA.preScale(scale, scale); //remove text size, G is rotational so reorders with the scale. 6690abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 6700abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fGsA.eM11 = SkScalarToFIXED(GsA.get(SkMatrix::kMScaleX)); 6710abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fGsA.eM12 = SkScalarToFIXED(-GsA.get(SkMatrix::kMSkewY)); // This should be ~0. 6720abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fGsA.eM21 = SkScalarToFIXED(-GsA.get(SkMatrix::kMSkewX)); 6730abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fGsA.eM22 = SkScalarToFIXED(GsA.get(SkMatrix::kMScaleY)); 6740abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 6750abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // fG_inv is G inverse, which is fairly simple since G is 2x2 rotational. 6760abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fG_inv.setAll(G.get(SkMatrix::kMScaleX), -G.get(SkMatrix::kMSkewX), G.get(SkMatrix::kMTransX), 6770abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com -G.get(SkMatrix::kMSkewY), G.get(SkMatrix::kMScaleY), G.get(SkMatrix::kMTransY), 6780abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com G.get(SkMatrix::kMPersp0), G.get(SkMatrix::kMPersp1), G.get(SkMatrix::kMPersp2)); 679ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 680055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com LOGFONT lf = typeface->fLogFont; 6810abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com lf.lfHeight = -SkScalarTruncToInt(textSize); 68282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com lf.lfQuality = compute_quality(fRec); 683ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fFont = CreateFontIndirect(&lf); 68484e22d847fc84727bc220947162363ee1fe068fcreed@google.com if (!fFont) { 68584e22d847fc84727bc220947162363ee1fe068fcreed@google.com return; 68684e22d847fc84727bc220947162363ee1fe068fcreed@google.com } 6871dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 688ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fSavefont = (HFONT)SelectObject(fDDC, fFont); 689a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 690a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (0 == GetTextMetrics(fDDC, &fTM)) { 691055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com call_ensure_accessible(lf); 692a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (0 == GetTextMetrics(fDDC, &fTM)) { 693a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fTM.tmPitchAndFamily = TMPF_TRUETYPE; 694a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 695a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 696a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com // Used a logfont on a memory context, should never get a device font. 69790b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com // Therefore all TMPF_DEVICE will be PostScript fonts. 69890b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com 69990b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com // If TMPF_VECTOR is set, one of TMPF_TRUETYPE or TMPF_DEVICE must be set, 70090b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com // otherwise we have a vector FON, which we don't support. 70190b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com // This was determined by testing with Type1 PFM/PFB and OpenTypeCFF OTF, 70290b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com // as well as looking at Wine bugs and sources. 70390b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com SkASSERT(!(fTM.tmPitchAndFamily & TMPF_VECTOR) || 70490b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com (fTM.tmPitchAndFamily & (TMPF_TRUETYPE | TMPF_DEVICE))); 70590b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com 706d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com XFORM xform; 70790b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com if (fTM.tmPitchAndFamily & TMPF_VECTOR) { 708a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com // Truetype or PostScript. 709a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com // Stroked FON also gets here (TMPF_VECTOR), but we don't handle it. 710a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fType = SkScalerContext_Windows::kTrueType_Type; 711a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 712d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // fPost2x2 is column-major, left handed (y down). 713d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // XFORM 2x2 is row-major, left handed (y down). 7140abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com xform.eM11 = SkScalarToFloat(sA.get(SkMatrix::kMScaleX)); 7150abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com xform.eM12 = SkScalarToFloat(sA.get(SkMatrix::kMSkewY)); 7160abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com xform.eM21 = SkScalarToFloat(sA.get(SkMatrix::kMSkewX)); 7170abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com xform.eM22 = SkScalarToFloat(sA.get(SkMatrix::kMScaleY)); 718d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eDx = 0; 719d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eDy = 0; 720d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com 721d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // MAT2 is row major, right handed (y up). 722d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM11 = float2FIXED(xform.eM11); 723d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM12 = float2FIXED(-xform.eM12); 724d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM21 = float2FIXED(-xform.eM21); 725d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM22 = float2FIXED(xform.eM22); 726a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 727a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (needToRenderWithSkia(fRec)) { 728a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com this->forceGenerateImageFromPath(); 729a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 730a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 7310abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // Create a hires font if we need linear metrics. 7320abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (this->isSubpixel()) { 7330abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com OUTLINETEXTMETRIC otm; 7340abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com UINT success = GetOutlineTextMetrics(fDDC, sizeof(otm), &otm); 7350abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (0 == success) { 7360abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com call_ensure_accessible(lf); 7370abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com success = GetOutlineTextMetrics(fDDC, sizeof(otm), &otm); 7380abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 7390abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (0 != success) { 7406a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com SkScalar scale = SkIntToScalar(otm.otmEMSquare); 7416a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com 7426a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com SkScalar textScale = scale / textSize; 7436a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com fHighResMat22.eM11 = float2FIXED(textScale); 7446a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com fHighResMat22.eM12 = float2FIXED(0); 7456a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com fHighResMat22.eM21 = float2FIXED(0); 7466a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com fHighResMat22.eM22 = float2FIXED(textScale); 7476a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com 7486a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com SkScalar invScale = SkScalarInvert(scale); 7496a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com fHiResMatrix = A; 7506a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com fHiResMatrix.preScale(invScale, invScale); 7510abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 7520abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 7530abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 754a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } else { 755a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com // Assume bitmap 756a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fType = SkScalerContext_Windows::kBitmap_Type; 757a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 758d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM11 = 1.0f; 759d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM12 = 0.0f; 760d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM21 = 0.0f; 761d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM22 = 1.0f; 762d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eDx = 0.0f; 763d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eDy = 0.0f; 764a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 765d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // fPost2x2 is column-major, left handed (y down). 766d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // MAT2 is row major, right handed (y up). 767a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fMat22.eM11 = SkScalarToFIXED(fRec.fPost2x2[0][0]); 768d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM12 = SkScalarToFIXED(-fRec.fPost2x2[1][0]); 769a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fMat22.eM21 = SkScalarToFIXED(-fRec.fPost2x2[0][1]); 770d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM22 = SkScalarToFIXED(fRec.fPost2x2[1][1]); 771a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com } 77299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 773d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fOffscreen.init(fFont, xform); 774ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 775ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 776ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comSkScalerContext_Windows::~SkScalerContext_Windows() { 777ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fDDC) { 778ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::SelectObject(fDDC, fSavefont); 779ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::DeleteDC(fDDC); 780ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 781ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fFont) { 782ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::DeleteObject(fFont); 783ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 784ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fSC) { 785ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::ScriptFreeCache(&fSC); 786ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 787ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 788ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 78984e22d847fc84727bc220947162363ee1fe068fcreed@google.combool SkScalerContext_Windows::isValid() const { 79084e22d847fc84727bc220947162363ee1fe068fcreed@google.com return fDDC && fFont; 79184e22d847fc84727bc220947162363ee1fe068fcreed@google.com} 79284e22d847fc84727bc220947162363ee1fe068fcreed@google.com 793ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comunsigned SkScalerContext_Windows::generateGlyphCount() { 794ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fGlyphCount < 0) { 7957bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com fGlyphCount = calculateGlyphCount( 7967bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com fDDC, static_cast<const LogFontTypeface*>(this->getTypeface())->fLogFont); 797ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 798ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return fGlyphCount; 799ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 800ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 801ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comuint16_t SkScalerContext_Windows::generateCharToGlyph(SkUnichar uni) { 802ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com uint16_t index = 0; 803ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com WCHAR c[2]; 804ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // TODO(ctguil): Support characters that generate more than one glyph. 805ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (SkUTF16_FromUnichar(uni, (uint16_t*)c) == 1) { 806ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Type1 fonts fail with uniscribe API. Use GetGlyphIndices for plane 0. 807ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkAssertResult(GetGlyphIndicesW(fDDC, c, 1, &index, 0)); 808ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 809ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Use uniscribe to detemine glyph index for non-BMP characters. 810ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Need to add extra item to SCRIPT_ITEM to work around a bug in older 811ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // windows versions. https://bugzilla.mozilla.org/show_bug.cgi?id=366643 812ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SCRIPT_ITEM si[2 + 1]; 813ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int items; 814ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkAssertResult( 815ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SUCCEEDED(ScriptItemize(c, 2, 2, NULL, NULL, si, &items))); 816ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 817ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com WORD log[2]; 818ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SCRIPT_VISATTR vsa; 819ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int glyphs; 820ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkAssertResult(SUCCEEDED(ScriptShape( 821ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fDDC, &fSC, c, 2, 1, &si[0].a, &index, log, &vsa, &glyphs))); 822ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 823ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return index; 824ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 825ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 826ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comvoid SkScalerContext_Windows::generateAdvance(SkGlyph* glyph) { 827ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com this->generateMetrics(glyph); 828ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 829ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 830ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comvoid SkScalerContext_Windows::generateMetrics(SkGlyph* glyph) { 831ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(fDDC); 832ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 833a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (fType == SkScalerContext_Windows::kBitmap_Type) { 834a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com SIZE size; 835a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com WORD glyphs = glyph->getGlyphID(0); 836a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (0 == GetTextExtentPointI(fDDC, &glyphs, 1, &size)) { 837a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fWidth = SkToS16(fTM.tmMaxCharWidth); 838a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } else { 839a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fWidth = SkToS16(size.cx); 840a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 841a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fHeight = SkToS16(size.cy); 842a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 843a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fTop = SkToS16(-fTM.tmAscent); 844a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fLeft = SkToS16(0); 845a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fAdvanceX = SkIntToFixed(glyph->fWidth); 846a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fAdvanceY = 0; 847a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 848d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // Apply matrix to advance. 849a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fAdvanceY = SkFixedMul(SkFIXEDToFixed(fMat22.eM21), glyph->fAdvanceX); 850a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fAdvanceX = SkFixedMul(SkFIXEDToFixed(fMat22.eM11), glyph->fAdvanceX); 851a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 852a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com return; 853a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 854a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 855d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com UINT glyphId = glyph->getGlyphID(0); 856d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com 857ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com GLYPHMETRICS gm; 8581dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com sk_bzero(&gm, sizeof(gm)); 859ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 860d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com DWORD status = GetGlyphOutlineW(fDDC, glyphId, GGO_METRICS | GGO_GLYPH_INDEX, &gm, 0, NULL, &fMat22); 861d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (GDI_ERROR == status) { 862055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com LogFontTypeface::EnsureAccessible(this->getTypeface()); 863d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com status = GetGlyphOutlineW(fDDC, glyphId, GGO_METRICS | GGO_GLYPH_INDEX, &gm, 0, NULL, &fMat22); 864d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (GDI_ERROR == status) { 865d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->zeroMetrics(); 866d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com return; 867d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 86839698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 869ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 870d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com bool empty = false; 871d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // The black box is either the embedded bitmap size or the outline extent. 872d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // It is 1x1 if nothing is to be drawn, but will also be 1x1 if something very small 873d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // is to be drawn, like a '.'. We need to outset '.' but do not wish to outset ' '. 874d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (1 == gm.gmBlackBoxX && 1 == gm.gmBlackBoxY) { 875d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // If GetGlyphOutline with GGO_NATIVE returns 0, we know there was no outline. 876d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com DWORD bufferSize = GetGlyphOutlineW(fDDC, glyphId, GGO_NATIVE | GGO_GLYPH_INDEX, &gm, 0, NULL, &fMat22); 877d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com empty = (0 == bufferSize); 878d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 8791dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 880d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fTop = SkToS16(-gm.gmptGlyphOrigin.y); 881d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fLeft = SkToS16(gm.gmptGlyphOrigin.x); 882d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (empty) { 883d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fWidth = 0; 884d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fHeight = 0; 885ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 886d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // Outset, since the image may bleed out of the black box. 887d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // For embedded bitmaps the black box should be exact. 888d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // For outlines we need to outset by 1 in all directions for bleed. 889d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // For ClearType we need to outset by 2 for bleed. 890d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fWidth = gm.gmBlackBoxX + 4; 891d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fHeight = gm.gmBlackBoxY + 4; 892d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fTop -= 2; 893d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fLeft -= 2; 894d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 895d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fAdvanceX = SkIntToFixed(gm.gmCellIncX); 896d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fAdvanceY = SkIntToFixed(gm.gmCellIncY); 897d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fRsbDelta = 0; 898d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fLsbDelta = 0; 899d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com 9006a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com if (this->isSubpixel()) { 901d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com sk_bzero(&gm, sizeof(gm)); 9026a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.com status = GetGlyphOutlineW(fDDC, glyphId, GGO_METRICS | GGO_GLYPH_INDEX, &gm, 0, NULL, &fHighResMat22); 903d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (GDI_ERROR != status) { 904d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkPoint advance; 905d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fHiResMatrix.mapXY(SkIntToScalar(gm.gmCellIncX), SkIntToScalar(gm.gmCellIncY), &advance); 906d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fAdvanceX = SkScalarToFixed(advance.fX); 907d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fAdvanceY = SkScalarToFixed(advance.fY); 908d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 9090abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } else if (!isAxisAligned(this->fRec)) { 9100abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com status = GetGlyphOutlineW(fDDC, glyphId, GGO_METRICS | GGO_GLYPH_INDEX, &gm, 0, NULL, &fGsA); 9110abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (GDI_ERROR != status) { 9120abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkPoint advance; 9130abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fG_inv.mapXY(SkIntToScalar(gm.gmCellIncX), SkIntToScalar(gm.gmCellIncY), &advance); 9140abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com glyph->fAdvanceX = SkScalarToFixed(advance.fX); 9150abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com glyph->fAdvanceY = SkScalarToFixed(advance.fY); 9160abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 917ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 918ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 919ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 9206a774a1f266070f304199ee31b8d1f4c0138b6cfbungeman@google.comstatic const MAT2 gMat2Identity = {{0, 1}, {0, 0}, {0, 0}, {0, 1}}; 921ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comvoid SkScalerContext_Windows::generateFontMetrics(SkPaint::FontMetrics* mx, SkPaint::FontMetrics* my) { 92260af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com if (!(mx || my)) { 923ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return; 92460af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com } 92560af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com 92660af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com if (mx) { 92760af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com sk_bzero(mx, sizeof(*mx)); 92860af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com } 92960af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com if (my) { 93060af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com sk_bzero(my, sizeof(*my)); 93160af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com } 932ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 933ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(fDDC); 934ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 935e9d831957602e3fa46fc4b609ae6d2da46654915bungeman@google.com#ifndef SK_GDI_ALWAYS_USE_TEXTMETRICS_FOR_FONT_METRICS 936a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (fType == SkScalerContext_Windows::kBitmap_Type) { 937e9d831957602e3fa46fc4b609ae6d2da46654915bungeman@google.com#endif 938a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (mx) { 939a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com mx->fTop = SkIntToScalar(-fTM.tmAscent); 940a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com mx->fAscent = SkIntToScalar(-fTM.tmAscent); 9410abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com mx->fDescent = SkIntToScalar(fTM.tmDescent); 942a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com mx->fBottom = SkIntToScalar(fTM.tmDescent); 94360af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com mx->fLeading = SkIntToScalar(fTM.tmExternalLeading); 944a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 945a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 946a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (my) { 947a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com my->fTop = SkIntToScalar(-fTM.tmAscent); 948a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com my->fAscent = SkIntToScalar(-fTM.tmAscent); 9490abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com my->fDescent = SkIntToScalar(fTM.tmDescent); 950a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com my->fBottom = SkIntToScalar(fTM.tmDescent); 95160af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com my->fLeading = SkIntToScalar(fTM.tmExternalLeading); 95260af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com my->fAvgCharWidth = SkIntToScalar(fTM.tmAveCharWidth); 953e9d831957602e3fa46fc4b609ae6d2da46654915bungeman@google.com my->fMaxCharWidth = SkIntToScalar(fTM.tmMaxCharWidth); 954e9d831957602e3fa46fc4b609ae6d2da46654915bungeman@google.com my->fXMin = 0; 955e9d831957602e3fa46fc4b609ae6d2da46654915bungeman@google.com my->fXMax = my->fMaxCharWidth; 956e9d831957602e3fa46fc4b609ae6d2da46654915bungeman@google.com //my->fXHeight = 0; 957a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 958e9d831957602e3fa46fc4b609ae6d2da46654915bungeman@google.com#ifndef SK_GDI_ALWAYS_USE_TEXTMETRICS_FOR_FONT_METRICS 959a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com return; 960a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 961e9d831957602e3fa46fc4b609ae6d2da46654915bungeman@google.com#endif 962a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 963ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com OUTLINETEXTMETRIC otm; 964ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 965ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com uint32_t ret = GetOutlineTextMetrics(fDDC, sizeof(otm), &otm); 9660abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (0 == ret) { 967055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com LogFontTypeface::EnsureAccessible(this->getTypeface()); 96839698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com ret = GetOutlineTextMetrics(fDDC, sizeof(otm), &otm); 96939698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 9700abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (0 == ret) { 971a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com return; 972ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 973ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 974ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (mx) { 9750abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com mx->fTop = SkIntToScalar(-otm.otmrcFontBox.left); 9760abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com mx->fAscent = SkIntToScalar(-otm.otmAscent); 9770abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com mx->fDescent = SkIntToScalar(-otm.otmDescent); 9780abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com mx->fBottom = SkIntToScalar(otm.otmrcFontBox.right); 9790abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com mx->fLeading = SkIntToScalar(otm.otmLineGap); 980ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 981ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 982ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (my) { 983e9d831957602e3fa46fc4b609ae6d2da46654915bungeman@google.com#ifndef SK_GDI_ALWAYS_USE_TEXTMETRICS_FOR_FONT_METRICS 9840abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com my->fTop = SkIntToScalar(-otm.otmrcFontBox.top); 9850abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com my->fAscent = SkIntToScalar(-otm.otmAscent); 9860abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com my->fDescent = SkIntToScalar(-otm.otmDescent); 9870abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com my->fBottom = SkIntToScalar(-otm.otmrcFontBox.bottom); 9880abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com my->fLeading = SkIntToScalar(otm.otmLineGap); 9890abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com my->fAvgCharWidth = SkIntToScalar(otm.otmTextMetrics.tmAveCharWidth); 9900abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com my->fMaxCharWidth = SkIntToScalar(otm.otmTextMetrics.tmMaxCharWidth); 9910abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com my->fXMin = SkIntToScalar(otm.otmrcFontBox.left); 9920abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com my->fXMax = SkIntToScalar(otm.otmrcFontBox.right); 993e9d831957602e3fa46fc4b609ae6d2da46654915bungeman@google.com#endif 9940abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com my->fXHeight = SkIntToScalar(otm.otmsXHeight); 9950abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 9960abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GLYPHMETRICS gm; 9970abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com sk_bzero(&gm, sizeof(gm)); 9980abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com DWORD len = GetGlyphOutlineW(fDDC, 'x', GGO_METRICS, &gm, 0, 0, &gMat2Identity); 9990abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (len != GDI_ERROR && gm.gmBlackBoxY > 0) { 10000abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com my->fXHeight = SkIntToScalar(gm.gmBlackBoxY); 10010abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 1002ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1003ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1004ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 10057430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com//////////////////////////////////////////////////////////////////////////////////////// 10067430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com 10070abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#define SK_SHOW_TEXT_BLIT_COVERAGE 0 10080abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 10097430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.comstatic void build_power_table(uint8_t table[], float ee) { 10107430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com for (int i = 0; i < 256; i++) { 10117430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com float x = i / 255.f; 101297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com x = sk_float_pow(x, ee); 10137430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com int xx = SkScalarRound(SkFloatToScalar(x * 255)); 10147430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com table[i] = SkToU8(xx); 10157430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com } 10167430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com} 10177430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com 101897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com/** 101997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * This will invert the gamma applied by GDI (gray-scale antialiased), so we 102097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * can get linear values. 102197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * 102297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * GDI grayscale appears to use a hard-coded gamma of 2.3. 102397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * 102497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * GDI grayscale appears to draw using the black and white rasterizer at four 102597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * times the size and then downsamples to compute the coverage mask. As a 102697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * result there are only seventeen total grays. This lack of fidelity means 102797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * that shifting into other color spaces is imprecise. 102897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com */ 102997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic const uint8_t* getInverseGammaTableGDI() { 103005a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Since build_power_table is idempotent, many threads can build gTableGdi 103105a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // simultaneously. 103205a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com 103305a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Microsoft Specific: 103405a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Making gInited volatile provides read-aquire and write-release in vc++. 103505a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // In VS2012, see compiler option /volatile:(ms|iso). 103605a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Replace with C++11 atomics when possible. 103705a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com static volatile bool gInited; 103897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com static uint8_t gTableGdi[256]; 103905a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com if (gInited) { 104005a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Need a L/L (read) barrier (full acquire not needed). If gInited is observed 104105a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // true then gTableGdi is observable, but it must be requested. 104205a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com } else { 104397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com build_power_table(gTableGdi, 2.3f); 104405a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Need a S/S (write) barrier (full release not needed) here so that this 104505a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // write to gInited becomes observable after gTableGdi. 104697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com gInited = true; 104797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } 104897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com return gTableGdi; 104997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com} 105097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com 105197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com/** 105297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * This will invert the gamma applied by GDI ClearType, so we can get linear 105397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * values. 105497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * 105597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * GDI ClearType uses SPI_GETFONTSMOOTHINGCONTRAST / 1000 as the gamma value. 105697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * If this value is not specified, the default is a gamma of 1.4. 105797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com */ 105897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic const uint8_t* getInverseGammaTableClearType() { 105905a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // We don't expect SPI_GETFONTSMOOTHINGCONTRAST to ever change, so building 106005a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // gTableClearType with build_power_table is effectively idempotent. 106105a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com 106205a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Microsoft Specific: 106305a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Making gInited volatile provides read-aquire and write-release in vc++. 106405a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // In VS2012, see compiler option /volatile:(ms|iso). 106505a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Replace with C++11 atomics when possible. 106605a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com static volatile bool gInited; 106797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com static uint8_t gTableClearType[256]; 106805a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com if (gInited) { 106905a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Need a L/L (read) barrier (acquire not needed). If gInited is observed 107005a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // true then gTableClearType is observable, but it must be requested. 107105a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com } else { 10727430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com UINT level = 0; 10737430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com if (!SystemParametersInfo(SPI_GETFONTSMOOTHINGCONTRAST, 0, &level, 0) || !level) { 10747430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com // can't get the data, so use a default 10757430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com level = 1400; 10767430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com } 107797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com build_power_table(gTableClearType, level / 1000.0f); 107805a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Need a S/S (write) barrier (release not needed) here so that this 107905a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // write to gInited becomes observable after gTableClearType. 10807430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com gInited = true; 10817430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com } 108297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com return gTableClearType; 10837430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com} 10847430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com 1085ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkColorPriv.h" 1086ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 10876385314686875ecb484d95b33fcbf08890b5144dbungeman@google.com//Cannot assume that the input rgb is gray due to possible setting of kGenA8FromLCD_Flag. 108897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 108997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic inline uint8_t rgb_to_a8(SkGdiRGB rgb, const uint8_t* table8) { 10906385314686875ecb484d95b33fcbf08890b5144dbungeman@google.com U8CPU r = (rgb >> 16) & 0xFF; 10916385314686875ecb484d95b33fcbf08890b5144dbungeman@google.com U8CPU g = (rgb >> 8) & 0xFF; 10926385314686875ecb484d95b33fcbf08890b5144dbungeman@google.com U8CPU b = (rgb >> 0) & 0xFF; 10931bfe01d06b896eca94c80d9af9a6bb30216b5e42bungeman@google.com return sk_apply_lut_if<APPLY_PREBLEND>(SkComputeLuminance(r, g, b), table8); 109482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com} 109582a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 109697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 109797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic inline uint16_t rgb_to_lcd16(SkGdiRGB rgb, const uint8_t* tableR, 109897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableG, 109997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableB) { 110097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU r = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 16) & 0xFF, tableR); 110197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU g = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 8) & 0xFF, tableG); 110297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU b = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 0) & 0xFF, tableB); 11030abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#if SK_SHOW_TEXT_BLIT_COVERAGE 11040abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com r = SkMax32(r, 10); g = SkMax32(g, 10); b = SkMax32(b, 10); 11050abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#endif 110697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com return SkPack888ToRGB16(r, g, b); 1107ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1108ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 110997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 111097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic inline SkPMColor rgb_to_lcd32(SkGdiRGB rgb, const uint8_t* tableR, 111197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableG, 111297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableB) { 111397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU r = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 16) & 0xFF, tableR); 111497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU g = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 8) & 0xFF, tableG); 111597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU b = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 0) & 0xFF, tableB); 11160abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#if SK_SHOW_TEXT_BLIT_COVERAGE 11170abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com r = SkMax32(r, 10); g = SkMax32(g, 10); b = SkMax32(b, 10); 11180abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#endif 111997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com return SkPackARGB32(0xFF, r, g, b); 1120754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com} 1121754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com 112282cff020b7e055f2d01686f060a884df842306edreed@google.com// Is this GDI color neither black nor white? If so, we have to keep this 112382cff020b7e055f2d01686f060a884df842306edreed@google.com// image as is, rather than smashing it down to a BW mask. 112482cff020b7e055f2d01686f060a884df842306edreed@google.com// 112582cff020b7e055f2d01686f060a884df842306edreed@google.com// returns int instead of bool, since we don't want/have to pay to convert 112682cff020b7e055f2d01686f060a884df842306edreed@google.com// the zero/non-zero value into a bool 112782cff020b7e055f2d01686f060a884df842306edreed@google.comstatic int is_not_black_or_white(SkGdiRGB c) { 112882cff020b7e055f2d01686f060a884df842306edreed@google.com // same as (but faster than) 112982cff020b7e055f2d01686f060a884df842306edreed@google.com // c &= 0x00FFFFFF; 113082cff020b7e055f2d01686f060a884df842306edreed@google.com // return 0 == c || 0x00FFFFFF == c; 113182cff020b7e055f2d01686f060a884df842306edreed@google.com return (c + (c & 1)) & 0x00FFFFFF; 11325e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 11335e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 11344b18f5767ab1df7fedf0ff2e3a9eac7f7c500c36bungeman@google.comstatic bool is_rgb_really_bw(const SkGdiRGB* src, int width, int height, size_t srcRB) { 11355e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int y = 0; y < height; ++y) { 11365e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int x = 0; x < width; ++x) { 113782cff020b7e055f2d01686f060a884df842306edreed@google.com if (is_not_black_or_white(src[x])) { 11385e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com return false; 11395e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 11405e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 114105a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com src = SkTAddOffset<const SkGdiRGB>(src, srcRB); 11425e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 11435e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com return true; 11445e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 11455e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 114697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com// gdi's bitmap is upside-down, so we reverse dst walking in Y 114797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com// whenever we copy it into skia's buffer 11485e2df64215f12660ab26b96816f40ad8e32bf16freed@google.comstatic void rgb_to_bw(const SkGdiRGB* SK_RESTRICT src, size_t srcRB, 114997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const SkGlyph& glyph) { 11505e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const int width = glyph.fWidth; 11515e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const size_t dstRB = (width + 7) >> 3; 11525e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com uint8_t* SK_RESTRICT dst = (uint8_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 11535e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 11545e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com int byteCount = width >> 3; 11555e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com int bitCount = width & 7; 11565e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 11575e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com // adjust srcRB to skip the values in our byteCount loop, 11585e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com // since we increment src locally there 11595e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com srcRB -= byteCount * 8 * sizeof(SkGdiRGB); 11605e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 11615e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int y = 0; y < glyph.fHeight; ++y) { 11625e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com if (byteCount > 0) { 11635e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int i = 0; i < byteCount; ++i) { 11647a230142e01c5a8cf955be12a5f287589b551634reed@google.com unsigned byte = 0; 116597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[0] & (1 << 7); 116697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[1] & (1 << 6); 116797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[2] & (1 << 5); 116897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[3] & (1 << 4); 116997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[4] & (1 << 3); 117097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[5] & (1 << 2); 117197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[6] & (1 << 1); 117297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[7] & (1 << 0); 11736a8f14d9633b330fb8051581828a0aaf4403d1a9reed@google.com dst[i] = byte; 11745e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com src += 8; 11755e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 11765e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 11775e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com if (bitCount > 0) { 11785e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com unsigned byte = 0; 11795e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com unsigned mask = 0x80; 11805e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int i = 0; i < bitCount; i++) { 118197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[i] & mask; 11825e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com mask >>= 1; 11835e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 11845e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com dst[byteCount] = byte; 11855e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 118605a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com src = SkTAddOffset<const SkGdiRGB>(src, srcRB); 11875e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com dst -= dstRB; 11885e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 11890abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#if SK_SHOW_TEXT_BLIT_COVERAGE 11900abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (glyph.fWidth > 0 && glyph.fHeight > 0) { 11910abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com uint8_t* first = (uint8_t*)glyph.fImage; 11920abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com uint8_t* last = (uint8_t*)((char*)glyph.fImage + glyph.fHeight * dstRB - 1); 11930abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com *first |= 1 << 7; 11940abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com *last |= bitCount == 0 ? 1 : 1 << (8 - bitCount); 11950abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 11960abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#endif 11975e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 11985e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 119997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 12005e2df64215f12660ab26b96816f40ad8e32bf16freed@google.comstatic void rgb_to_a8(const SkGdiRGB* SK_RESTRICT src, size_t srcRB, 120197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const SkGlyph& glyph, const uint8_t* table8) { 12025e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const size_t dstRB = glyph.rowBytes(); 12035e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const int width = glyph.fWidth; 12045e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com uint8_t* SK_RESTRICT dst = (uint8_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 12055e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 12065e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int y = 0; y < glyph.fHeight; y++) { 12075e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int i = 0; i < width; i++) { 120897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com dst[i] = rgb_to_a8<APPLY_PREBLEND>(src[i], table8); 12090abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#if SK_SHOW_TEXT_BLIT_COVERAGE 12100abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com dst[i] = SkMax32(dst[i], 10); 12110abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#endif 12125e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 121305a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com src = SkTAddOffset<const SkGdiRGB>(src, srcRB); 12145e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com dst -= dstRB; 12155e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 12165e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 12175e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 121897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 121997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic void rgb_to_lcd16(const SkGdiRGB* SK_RESTRICT src, size_t srcRB, const SkGlyph& glyph, 122097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableR, const uint8_t* tableG, const uint8_t* tableB) { 12215e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const size_t dstRB = glyph.rowBytes(); 12225e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const int width = glyph.fWidth; 12235e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com uint16_t* SK_RESTRICT dst = (uint16_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 12245e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 12255e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int y = 0; y < glyph.fHeight; y++) { 12265e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int i = 0; i < width; i++) { 122797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com dst[i] = rgb_to_lcd16<APPLY_PREBLEND>(src[i], tableR, tableG, tableB); 12285e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 122905a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com src = SkTAddOffset<const SkGdiRGB>(src, srcRB); 12305e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com dst = (uint16_t*)((char*)dst - dstRB); 12315e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 12325e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 12335e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 123497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 123597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic void rgb_to_lcd32(const SkGdiRGB* SK_RESTRICT src, size_t srcRB, const SkGlyph& glyph, 123697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableR, const uint8_t* tableG, const uint8_t* tableB) { 1237754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com const size_t dstRB = glyph.rowBytes(); 1238754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com const int width = glyph.fWidth; 123997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com uint32_t* SK_RESTRICT dst = (uint32_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 1240754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com 1241754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com for (int y = 0; y < glyph.fHeight; y++) { 1242754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com for (int i = 0; i < width; i++) { 124397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com dst[i] = rgb_to_lcd32<APPLY_PREBLEND>(src[i], tableR, tableG, tableB); 1244754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } 124505a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com src = SkTAddOffset<const SkGdiRGB>(src, srcRB); 124697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com dst = (uint32_t*)((char*)dst - dstRB); 1247754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } 1248754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com} 1249754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com 12506f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.comstatic inline unsigned clamp255(unsigned x) { 12516f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com SkASSERT(x <= 256); 12526f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com return x - (x >> 8); 12536f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com} 12546f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com 1255a76de72a6036da0a6b051b14411b80941971f881bungeman@google.comvoid SkScalerContext_Windows::generateImage(const SkGlyph& glyph) { 1256ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(fDDC); 1257ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 12586271117d826098c1399cf7442f8eea2d665cb78areed@google.com const bool isBW = SkMask::kBW_Format == fRec.fMaskFormat; 125982a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com const bool isAA = !isLCD(fRec); 126082a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 126199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com size_t srcRB; 126297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const void* bits = fOffscreen.draw(glyph, isBW, &srcRB); 126339698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (NULL == bits) { 1264055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com LogFontTypeface::EnsureAccessible(this->getTypeface()); 126597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com bits = fOffscreen.draw(glyph, isBW, &srcRB); 126639698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (NULL == bits) { 126739698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com sk_bzero(glyph.fImage, glyph.computeImageSize()); 126839698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com return; 126939698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 127082a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com } 127182a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 127297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com if (!isBW) { 12731bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com const uint8_t* table; 12741bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com //The offscreen contains a GDI blit if isAA and kGenA8FromLCD_Flag is not set. 12751bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com //Otherwise the offscreen contains a ClearType blit. 12761bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com if (isAA && !(fRec.fFlags & SkScalerContext::kGenA8FromLCD_Flag)) { 12771bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com table = getInverseGammaTableGDI(); 12781bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com } else { 12791bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com table = getInverseGammaTableClearType(); 128097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } 128197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //Note that the following cannot really be integrated into the 128297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //pre-blend, since we may not be applying the pre-blend; when we aren't 128397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //applying the pre-blend it means that a filter wants linear anyway. 128497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //Other code may also be applying the pre-blend, so we'd need another 128597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //one with this and one without. 12866f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com SkGdiRGB* addr = (SkGdiRGB*)bits; 12876f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com for (int y = 0; y < glyph.fHeight; ++y) { 12886f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com for (int x = 0; x < glyph.fWidth; ++x) { 12896f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com int r = (addr[x] >> 16) & 0xFF; 12906f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com int g = (addr[x] >> 8) & 0xFF; 12916f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com int b = (addr[x] >> 0) & 0xFF; 12927430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com addr[x] = (table[r] << 16) | (table[g] << 8) | table[b]; 12936f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com } 129405a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com addr = SkTAddOffset<SkGdiRGB>(addr, srcRB); 12956f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com } 12966f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com } 12976f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com 129882a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com int width = glyph.fWidth; 129982a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com size_t dstRB = glyph.rowBytes(); 130082a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com if (isBW) { 130182a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com const uint8_t* src = (const uint8_t*)bits; 130282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com uint8_t* dst = (uint8_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 130382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com for (int y = 0; y < glyph.fHeight; y++) { 130482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com memcpy(dst, src, dstRB); 130582a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com src += srcRB; 130682a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com dst -= dstRB; 1307ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 13080abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#if SK_SHOW_TEXT_BLIT_COVERAGE 13090abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (glyph.fWidth > 0 && glyph.fHeight > 0) { 13100abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com int bitCount = width & 7; 13110abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com uint8_t* first = (uint8_t*)glyph.fImage; 13120abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com uint8_t* last = (uint8_t*)((char*)glyph.fImage + glyph.fHeight * dstRB - 1); 13130abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com *first |= 1 << 7; 13140abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com *last |= bitCount == 0 ? 1 : 1 << (8 - bitCount); 13150abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 13160abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com#endif 131782a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com } else if (isAA) { 13186f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com // since the caller may require A8 for maskfilters, we can't check for BW 13196f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com // ... until we have the caller tell us that explicitly 13205e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const SkGdiRGB* src = (const SkGdiRGB*)bits; 1321a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com if (fPreBlend.isApplicable()) { 1322a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com rgb_to_a8<true>(src, srcRB, glyph, fPreBlend.fG); 132397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } else { 1324a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com rgb_to_a8<false>(src, srcRB, glyph, fPreBlend.fG); 132597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } 132682a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com } else { // LCD16 13275e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const SkGdiRGB* src = (const SkGdiRGB*)bits; 13285e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com if (is_rgb_really_bw(src, width, glyph.fHeight, srcRB)) { 132997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com rgb_to_bw(src, srcRB, glyph); 13305e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com ((SkGlyph*)&glyph)->fMaskFormat = SkMask::kBW_Format; 13315e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } else { 1332754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com if (SkMask::kLCD16_Format == glyph.fMaskFormat) { 1333a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com if (fPreBlend.isApplicable()) { 1334a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com rgb_to_lcd16<true>(src, srcRB, glyph, 1335a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com fPreBlend.fR, fPreBlend.fG, fPreBlend.fB); 133697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } else { 1337a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com rgb_to_lcd16<false>(src, srcRB, glyph, 1338a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com fPreBlend.fR, fPreBlend.fG, fPreBlend.fB); 133997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } 1340754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } else { 1341754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com SkASSERT(SkMask::kLCD32_Format == glyph.fMaskFormat); 1342a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com if (fPreBlend.isApplicable()) { 1343a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com rgb_to_lcd32<true>(src, srcRB, glyph, 1344a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com fPreBlend.fR, fPreBlend.fG, fPreBlend.fB); 134597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } else { 1346a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com rgb_to_lcd32<false>(src, srcRB, glyph, 1347a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com fPreBlend.fR, fPreBlend.fG, fPreBlend.fB); 134897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } 1349754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } 1350ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1351ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1352ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1353ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 13540abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.comclass GDIGlyphbufferPointIter { 13550abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.compublic: 135627e21fe577211c1c40cbf40d0385b02c69d04522skia.committer@gmail.com GDIGlyphbufferPointIter(const uint8_t* glyphbuf, DWORD total_size) 13570abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com : fHeaderIter(glyphbuf, total_size), fCurveIter(), fPointIter() 13580abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com { } 13590abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 13600abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com POINTFX next() { 13610abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.comnextHeader: 13620abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (!fCurveIter.isSet()) { 13630abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYGONHEADER* header = fHeaderIter.next(); 13640abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkASSERT(header); 13650abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fCurveIter.set(header); 13660abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYCURVE* curve = fCurveIter.next(); 13670abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkASSERT(curve); 13680abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fPointIter.set(curve); 13690abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return header->pfxStart; 13700abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 1371ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 13720abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const POINTFX* nextPoint = fPointIter.next(); 13730abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (NULL == nextPoint) { 13740abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYCURVE* curve = fCurveIter.next(); 13750abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (NULL == curve) { 13760abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fCurveIter.set(); 13770abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com goto nextHeader; 13780abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } else { 13790abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fPointIter.set(curve); 13800abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 13810abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com nextPoint = fPointIter.next(); 13820abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkASSERT(nextPoint); 13830abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 13840abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return *nextPoint; 13850abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 1386ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 13870abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com WORD currentCurveType() { 13880abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return fPointIter.fCurveType; 13890abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 139005a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com 13910abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.comprivate: 13920abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com /** Iterates over all of the polygon headers in a glyphbuf. */ 13930abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com class GDIPolygonHeaderIter { 13940abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com public: 139527e21fe577211c1c40cbf40d0385b02c69d04522skia.committer@gmail.com GDIPolygonHeaderIter(const uint8_t* glyphbuf, DWORD total_size) 13960abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com : fCurPolygon(reinterpret_cast<const TTPOLYGONHEADER*>(glyphbuf)) 13970abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com , fEndPolygon(SkTAddOffset<const TTPOLYGONHEADER>(glyphbuf, total_size)) 13980abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com { } 13990abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 14000abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYGONHEADER* next() { 14010abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (fCurPolygon >= fEndPolygon) { 14020abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return NULL; 14030abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 14040abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYGONHEADER* thisPolygon = fCurPolygon; 14050abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fCurPolygon = SkTAddOffset<const TTPOLYGONHEADER>(fCurPolygon, fCurPolygon->cb); 14060abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return thisPolygon; 14070abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 14080abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com private: 14090abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYGONHEADER* fCurPolygon; 14100abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYGONHEADER* fEndPolygon; 14110abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com }; 141205a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com 14130abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com /** Iterates over all of the polygon curves in a polygon header. */ 14140abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com class GDIPolygonCurveIter { 14150abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com public: 14160abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GDIPolygonCurveIter() : fCurCurve(NULL), fEndCurve(NULL) { } 14170abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 14180abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GDIPolygonCurveIter(const TTPOLYGONHEADER* curPolygon) 14190abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com : fCurCurve(SkTAddOffset<const TTPOLYCURVE>(curPolygon, sizeof(TTPOLYGONHEADER))) 14200abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com , fEndCurve(SkTAddOffset<const TTPOLYCURVE>(curPolygon, curPolygon->cb)) 14210abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com { } 14220abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 14230abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com bool isSet() { return fCurCurve != NULL; } 14240abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 14250abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com void set(const TTPOLYGONHEADER* curPolygon) { 14260abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fCurCurve = SkTAddOffset<const TTPOLYCURVE>(curPolygon, sizeof(TTPOLYGONHEADER)); 14270abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fEndCurve = SkTAddOffset<const TTPOLYCURVE>(curPolygon, curPolygon->cb); 14280abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 14290abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com void set() { 14300abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fCurCurve = NULL; 14310abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fEndCurve = NULL; 14320abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 14330abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 14340abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYCURVE* next() { 14350abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (fCurCurve >= fEndCurve) { 14360abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return NULL; 143705a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com } 14380abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYCURVE* thisCurve = fCurCurve; 14390abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fCurCurve = SkTAddOffset<const TTPOLYCURVE>(fCurCurve, size_of_TTPOLYCURVE(*fCurCurve)); 14400abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return thisCurve; 14410abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 14420abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com private: 14430abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com size_t size_of_TTPOLYCURVE(const TTPOLYCURVE& curve) { 14440abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return 2*sizeof(WORD) + curve.cpfx*sizeof(POINTFX); 144505a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com } 14460abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYCURVE* fCurCurve; 14470abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYCURVE* fEndCurve; 14480abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com }; 144905a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com 14500abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com /** Iterates over all of the polygon points in a polygon curve. */ 14510abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com class GDIPolygonCurvePointIter { 14520abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com public: 14530abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GDIPolygonCurvePointIter() : fCurveType(0), fCurPoint(NULL), fEndPoint(NULL) { } 145405a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com 14550abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GDIPolygonCurvePointIter(const TTPOLYCURVE* curPolygon) 14560abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com : fCurveType(curPolygon->wType) 14570abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com , fCurPoint(&curPolygon->apfx[0]) 14580abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com , fEndPoint(&curPolygon->apfx[curPolygon->cpfx]) 14590abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com { } 14600abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 14610abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com bool isSet() { return fCurPoint != NULL; } 14620abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 14630abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com void set(const TTPOLYCURVE* curPolygon) { 14640abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fCurveType = curPolygon->wType; 14650abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fCurPoint = &curPolygon->apfx[0]; 14660abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fEndPoint = &curPolygon->apfx[curPolygon->cpfx]; 14670abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 14680abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com void set() { 14690abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fCurPoint = NULL; 14700abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com fEndPoint = NULL; 14710abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 14720abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 14730abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const POINTFX* next() { 14740abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (fCurPoint >= fEndPoint) { 14750abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return NULL; 147605a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com } 14770abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const POINTFX* thisPoint = fCurPoint; 14780abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com ++fCurPoint; 14790abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return thisPoint; 1480d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 1481ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 14820abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com WORD fCurveType; 14830abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com private: 14840abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const POINTFX* fCurPoint; 14850abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const POINTFX* fEndPoint; 14860abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com }; 14870abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 14880abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GDIPolygonHeaderIter fHeaderIter; 14890abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GDIPolygonCurveIter fCurveIter; 14900abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GDIPolygonCurvePointIter fPointIter; 14910abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com}; 14920abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 14930abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.comstatic void sk_path_from_gdi_path(SkPath* path, const uint8_t* glyphbuf, DWORD total_size) { 1494d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const uint8_t* cur_glyph = glyphbuf; 1495d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const uint8_t* end_glyph = glyphbuf + total_size; 1496ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1497d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com while (cur_glyph < end_glyph) { 1498d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const TTPOLYGONHEADER* th = (TTPOLYGONHEADER*)cur_glyph; 1499ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1500d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const uint8_t* end_poly = cur_glyph + th->cb; 1501d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const uint8_t* cur_poly = cur_glyph + sizeof(TTPOLYGONHEADER); 1502ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1503d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com path->moveTo(SkFixedToScalar( SkFIXEDToFixed(th->pfxStart.x)), 1504d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(th->pfxStart.y))); 1505ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1506d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com while (cur_poly < end_poly) { 1507d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const TTPOLYCURVE* pc = (const TTPOLYCURVE*)cur_poly; 1508ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1509d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (pc->wType == TT_PRIM_LINE) { 1510d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com for (uint16_t i = 0; i < pc->cpfx; i++) { 1511d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com path->lineTo(SkFixedToScalar( SkFIXEDToFixed(pc->apfx[i].x)), 1512d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(pc->apfx[i].y))); 1513ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1514d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 1515ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1516d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (pc->wType == TT_PRIM_QSPLINE) { 1517d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com for (uint16_t u = 0; u < pc->cpfx - 1; u++) { // Walk through points in spline 1518d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com POINTFX pnt_b = pc->apfx[u]; // B is always the current point 1519d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com POINTFX pnt_c = pc->apfx[u+1]; 1520ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1521d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (u < pc->cpfx - 2) { // If not on last spline, compute C 1522d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com pnt_c.x = SkFixedToFIXED(SkFixedAve(SkFIXEDToFixed(pnt_b.x), 1523d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFIXEDToFixed(pnt_c.x))); 1524d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com pnt_c.y = SkFixedToFIXED(SkFixedAve(SkFIXEDToFixed(pnt_b.y), 1525d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFIXEDToFixed(pnt_c.y))); 1526ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1527d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com 1528d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com path->quadTo(SkFixedToScalar( SkFIXEDToFixed(pnt_b.x)), 1529d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(pnt_b.y)), 1530d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFixedToScalar( SkFIXEDToFixed(pnt_c.x)), 1531d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(pnt_c.y))); 1532ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1533ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1534d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // Advance past this TTPOLYCURVE. 1535d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com cur_poly += sizeof(WORD) * 2 + sizeof(POINTFX) * pc->cpfx; 1536ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1537d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com cur_glyph += th->cb; 1538d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com path->close(); 1539ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1540ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1541ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 15420abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.comstatic void sk_path_from_gdi_paths(SkPath* path, const uint8_t* glyphbuf, DWORD total_size, 15430abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GDIGlyphbufferPointIter hintedYs) { 15440abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const uint8_t* cur_glyph = glyphbuf; 15450abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const uint8_t* end_glyph = glyphbuf + total_size; 15460abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 15470abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com while (cur_glyph < end_glyph) { 15480abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYGONHEADER* th = (TTPOLYGONHEADER*)cur_glyph; 15490abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 15500abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const uint8_t* end_poly = cur_glyph + th->cb; 15510abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const uint8_t* cur_poly = cur_glyph + sizeof(TTPOLYGONHEADER); 15520abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 15530abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com path->moveTo(SkFixedToScalar( SkFIXEDToFixed(th->pfxStart.x)), 15540abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(hintedYs.next().y))); 15550abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 15560abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com while (cur_poly < end_poly) { 15570abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com const TTPOLYCURVE* pc = (const TTPOLYCURVE*)cur_poly; 15580abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 15590abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (pc->wType == TT_PRIM_LINE) { 15600abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com for (uint16_t i = 0; i < pc->cpfx; i++) { 15610abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com path->lineTo(SkFixedToScalar( SkFIXEDToFixed(pc->apfx[i].x)), 15620abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(hintedYs.next().y))); 15630abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 15640abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 15650abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 15660abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (pc->wType == TT_PRIM_QSPLINE) { 15670abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com POINTFX currentPoint = pc->apfx[0]; 15680abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com POINTFX hintedY = hintedYs.next(); 15690abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // only take the hinted y if it wasn't flipped 15700abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (hintedYs.currentCurveType() == TT_PRIM_QSPLINE) { 15710abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com currentPoint.y = hintedY.y; 15720abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 15730abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com for (uint16_t u = 0; u < pc->cpfx - 1; u++) { // Walk through points in spline 15740abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com POINTFX pnt_b = currentPoint;//pc->apfx[u]; // B is always the current point 15750abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com POINTFX pnt_c = pc->apfx[u+1]; 15760abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com POINTFX hintedY = hintedYs.next(); 15770abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // only take the hinted y if it wasn't flipped 15780abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (hintedYs.currentCurveType() == TT_PRIM_QSPLINE) { 15790abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com pnt_c.y = hintedY.y; 15800abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 15810abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com currentPoint.x = pnt_c.x; 15820abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com currentPoint.y = pnt_c.y; 15830abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 15840abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (u < pc->cpfx - 2) { // If not on last spline, compute C 15850abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com pnt_c.x = SkFixedToFIXED(SkFixedAve(SkFIXEDToFixed(pnt_b.x), 15860abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkFIXEDToFixed(pnt_c.x))); 15870abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com pnt_c.y = SkFixedToFIXED(SkFixedAve(SkFIXEDToFixed(pnt_b.y), 15880abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkFIXEDToFixed(pnt_c.y))); 15890abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 15900abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 15910abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com path->quadTo(SkFixedToScalar( SkFIXEDToFixed(pnt_b.x)), 15920abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(pnt_b.y)), 15930abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkFixedToScalar( SkFIXEDToFixed(pnt_c.x)), 15940abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(pnt_c.y))); 15950abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 15960abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 15970abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // Advance past this TTPOLYCURVE. 15980abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com cur_poly += sizeof(WORD) * 2 + sizeof(POINTFX) * pc->cpfx; 15990abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16000abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com cur_glyph += th->cb; 16010abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com path->close(); 16020abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16030abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com} 16040abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 16050abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.comDWORD SkScalerContext_Windows::getGDIGlyphPath(const SkGlyph& glyph, UINT flags, 16060abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkAutoSTMalloc<BUFFERSIZE, uint8_t>* glyphbuf) 16070abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com{ 16080abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GLYPHMETRICS gm; 16090abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 16100abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com DWORD total_size = GetGlyphOutlineW(fDDC, glyph.fID, flags, &gm, BUFFERSIZE, glyphbuf->get(), &fMat22); 16110abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // Sometimes GetGlyphOutlineW returns a number larger than BUFFERSIZE even if BUFFERSIZE > 0. 16120abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // It has been verified that this does not involve a buffer overrun. 16130abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (GDI_ERROR == total_size || total_size > BUFFERSIZE) { 16140abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // GDI_ERROR because the BUFFERSIZE was too small, or because the data was not accessible. 16150abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // When the data is not accessable GetGlyphOutlineW fails rather quickly, 16160abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // so just try to get the size. If that fails then ensure the data is accessible. 16170abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com total_size = GetGlyphOutlineW(fDDC, glyph.fID, flags, &gm, 0, NULL, &fMat22); 16180abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (GDI_ERROR == total_size) { 16190abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com LogFontTypeface::EnsureAccessible(this->getTypeface()); 16200abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com total_size = GetGlyphOutlineW(fDDC, glyph.fID, flags, &gm, 0, NULL, &fMat22); 16210abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (GDI_ERROR == total_size) { 16220abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkASSERT(false); 16230abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return 0; 16240abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16250abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16260abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 16270abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com glyphbuf->reset(total_size); 16280abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 16290abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com DWORD ret = GetGlyphOutlineW(fDDC, glyph.fID, flags, &gm, total_size, glyphbuf->get(), &fMat22); 16300abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (GDI_ERROR == ret) { 16310abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com LogFontTypeface::EnsureAccessible(this->getTypeface()); 16320abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com ret = GetGlyphOutlineW(fDDC, glyph.fID, flags, &gm, total_size, glyphbuf->get(), &fMat22); 16330abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (GDI_ERROR == ret) { 16340abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkASSERT(false); 16350abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return 0; 16360abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16370abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16380abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16390abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return total_size; 16400abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com} 16410abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 16420abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.comvoid SkScalerContext_Windows::generatePath(const SkGlyph& glyph, SkPath* path) { 16430abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkASSERT(&glyph && path); 16440abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkASSERT(fDDC); 16450abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 16460abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com path->reset(); 16470abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 16480abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // Out of all the fonts on a typical Windows box, 16490abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // 25% of glyphs require more than 2KB. 16500abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // 1% of glyphs require more than 4KB. 16510abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // 0.01% of glyphs require more than 8KB. 16520abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // 8KB is less than 1% of the normal 1MB stack on Windows. 16530abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // Note that some web fonts glyphs require more than 20KB. 16540abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com //static const DWORD BUFFERSIZE = (1 << 13); 16550abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 16560abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com //GDI only uses hinted outlines when axis aligned. 16570abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com UINT format = GGO_NATIVE | GGO_GLYPH_INDEX; 16580abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (fRec.getHinting() == SkPaint::kNo_Hinting || fRec.getHinting() == SkPaint::kSlight_Hinting){ 16590abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com format |= GGO_UNHINTED; 16600abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16610abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkAutoSTMalloc<BUFFERSIZE, uint8_t> glyphbuf(BUFFERSIZE); 16620abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com DWORD total_size = getGDIGlyphPath(glyph, format, &glyphbuf); 16630abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (0 == total_size) { 16640abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return; 16650abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16660abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 16670abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (fRec.getHinting() != SkPaint::kSlight_Hinting) { 16680abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com sk_path_from_gdi_path(path, glyphbuf, total_size); 16690abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } else { 16700abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com //GDI only uses hinted outlines when axis aligned. 16710abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com UINT format = GGO_NATIVE | GGO_GLYPH_INDEX; 16720abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 16730abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com SkAutoSTMalloc<BUFFERSIZE, uint8_t> hintedGlyphbuf(BUFFERSIZE); 16740abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com DWORD hinted_total_size = getGDIGlyphPath(glyph, format, &hintedGlyphbuf); 16750abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com if (0 == hinted_total_size) { 16760abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com return; 16770abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16780abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 16790abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com sk_path_from_gdi_paths(path, glyphbuf, total_size, 16800abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com GDIGlyphbufferPointIter(hintedGlyphbuf, hinted_total_size)); 16810abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com } 16820abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com} 16830abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com 1684484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comstatic void logfont_for_name(const char* familyName, LOGFONT* lf) { 1685484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com sk_bzero(lf, sizeof(LOGFONT)); 1686e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com#ifdef UNICODE 1687484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com // Get the buffer size needed first. 1688484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com size_t str_len = ::MultiByteToWideChar(CP_UTF8, 0, familyName, 1689484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com -1, NULL, 0); 1690484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com // Allocate a buffer (str_len already has terminating null 1691484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com // accounted for). 1692484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com wchar_t *wideFamilyName = new wchar_t[str_len]; 1693484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com // Now actually convert the string. 1694484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ::MultiByteToWideChar(CP_UTF8, 0, familyName, -1, 1695484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com wideFamilyName, str_len); 1696484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ::wcsncpy(lf->lfFaceName, wideFamilyName, LF_FACESIZE - 1); 1697484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com delete [] wideFamilyName; 1698484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com lf->lfFaceName[LF_FACESIZE-1] = L'\0'; 1699e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com#else 1700484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ::strncpy(lf->lfFaceName, familyName, LF_FACESIZE - 1); 1701484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com lf->lfFaceName[LF_FACESIZE - 1] = '\0'; 1702e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com#endif 1703e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com} 1704e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com 17055526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.comvoid LogFontTypeface::onGetFontDescriptor(SkFontDescriptor* desc, 17065526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.com bool* isLocalStream) const { 17077103f182ce61280eacb35f1832df350b642a5381bungeman@google.com // Get the actual name of the typeface. The logfont may not know this. 17085526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.com HFONT font = CreateFontIndirect(&fLogFont); 17097103f182ce61280eacb35f1832df350b642a5381bungeman@google.com 17107103f182ce61280eacb35f1832df350b642a5381bungeman@google.com HDC deviceContext = ::CreateCompatibleDC(NULL); 17117103f182ce61280eacb35f1832df350b642a5381bungeman@google.com HFONT savefont = (HFONT)SelectObject(deviceContext, font); 17127103f182ce61280eacb35f1832df350b642a5381bungeman@google.com 17137103f182ce61280eacb35f1832df350b642a5381bungeman@google.com int fontNameLen; //length of fontName in TCHARS. 17147103f182ce61280eacb35f1832df350b642a5381bungeman@google.com if (0 == (fontNameLen = GetTextFace(deviceContext, 0, NULL))) { 17155526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.com call_ensure_accessible(fLogFont); 17167103f182ce61280eacb35f1832df350b642a5381bungeman@google.com if (0 == (fontNameLen = GetTextFace(deviceContext, 0, NULL))) { 17177103f182ce61280eacb35f1832df350b642a5381bungeman@google.com fontNameLen = 0; 17187103f182ce61280eacb35f1832df350b642a5381bungeman@google.com } 17197103f182ce61280eacb35f1832df350b642a5381bungeman@google.com } 17207103f182ce61280eacb35f1832df350b642a5381bungeman@google.com 17217103f182ce61280eacb35f1832df350b642a5381bungeman@google.com SkAutoSTArray<LF_FULLFACESIZE, TCHAR> fontName(fontNameLen+1); 17227103f182ce61280eacb35f1832df350b642a5381bungeman@google.com if (0 == GetTextFace(deviceContext, fontNameLen, fontName.get())) { 17235526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.com call_ensure_accessible(fLogFont); 17247103f182ce61280eacb35f1832df350b642a5381bungeman@google.com if (0 == GetTextFace(deviceContext, fontNameLen, fontName.get())) { 17257103f182ce61280eacb35f1832df350b642a5381bungeman@google.com fontName[0] = 0; 17267103f182ce61280eacb35f1832df350b642a5381bungeman@google.com } 17277103f182ce61280eacb35f1832df350b642a5381bungeman@google.com } 17287103f182ce61280eacb35f1832df350b642a5381bungeman@google.com 17297103f182ce61280eacb35f1832df350b642a5381bungeman@google.com if (deviceContext) { 17307103f182ce61280eacb35f1832df350b642a5381bungeman@google.com ::SelectObject(deviceContext, savefont); 17317103f182ce61280eacb35f1832df350b642a5381bungeman@google.com ::DeleteDC(deviceContext); 17327103f182ce61280eacb35f1832df350b642a5381bungeman@google.com } 17337103f182ce61280eacb35f1832df350b642a5381bungeman@google.com if (font) { 17347103f182ce61280eacb35f1832df350b642a5381bungeman@google.com ::DeleteObject(font); 17357103f182ce61280eacb35f1832df350b642a5381bungeman@google.com } 17367103f182ce61280eacb35f1832df350b642a5381bungeman@google.com 1737e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com SkString familyName; 17387103f182ce61280eacb35f1832df350b642a5381bungeman@google.com tchar_to_skstring(fontName.get(), &familyName); 1739e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com 17405526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.com desc->setFamilyName(familyName.c_str()); 17415526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.com *isLocalStream = this->fSerializeAsStream; 1742ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1743ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1744ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic bool getWidthAdvance(HDC hdc, int gId, int16_t* advance) { 1745ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Initialize the MAT2 structure to the identify transformation matrix. 1746ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com static const MAT2 mat2 = {SkScalarToFIXED(1), SkScalarToFIXED(0), 1747ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkScalarToFIXED(0), SkScalarToFIXED(1)}; 1748ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int flags = GGO_METRICS | GGO_GLYPH_INDEX; 1749ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com GLYPHMETRICS gm; 1750ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (GDI_ERROR == GetGlyphOutline(hdc, gId, flags, &gm, 0, NULL, &mat2)) { 1751ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return false; 1752ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1753ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(advance); 1754ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com *advance = gm.gmCellIncX; 1755ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return true; 1756ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1757ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 17582689f615e364dc48ad73826564f5b13d2329179dreed@google.comSkAdvancedTypefaceMetrics* LogFontTypeface::onGetAdvancedTypefaceMetrics( 175937ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org SkAdvancedTypefaceMetrics::PerGlyphInfo perGlyphInfo, 176037ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org const uint32_t* glyphIDs, 17612689f615e364dc48ad73826564f5b13d2329179dreed@google.com uint32_t glyphIDsCount) const { 17622689f615e364dc48ad73826564f5b13d2329179dreed@google.com LOGFONT lf = fLogFont; 1763ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkAdvancedTypefaceMetrics* info = NULL; 1764ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1765ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HDC hdc = CreateCompatibleDC(NULL); 1766ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT font = CreateFontIndirect(&lf); 1767ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT savefont = (HFONT)SelectObject(hdc, font); 1768ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT designFont = NULL; 1769ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 177005b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com const char stem_chars[] = {'i', 'I', '!', '1'}; 177105b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com int16_t min_width; 177205b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com unsigned glyphCount; 177305b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com 1774ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // To request design units, create a logical font whose height is specified 1775ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // as unitsPerEm. 1776ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com OUTLINETEXTMETRIC otm; 177739698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com unsigned int otmRet = GetOutlineTextMetrics(hdc, sizeof(otm), &otm); 177839698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (0 == otmRet) { 1779055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com call_ensure_accessible(lf); 178039698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com otmRet = GetOutlineTextMetrics(hdc, sizeof(otm), &otm); 178139698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 178239698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (!otmRet || !GetTextFace(hdc, LF_FACESIZE, lf.lfFaceName)) { 1783ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com goto Error; 1784ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1785ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com lf.lfHeight = -SkToS32(otm.otmEMSquare); 1786ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com designFont = CreateFontIndirect(&lf); 1787ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SelectObject(hdc, designFont); 1788ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (!GetOutlineTextMetrics(hdc, sizeof(otm), &otm)) { 1789ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com goto Error; 1790ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 17917bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com glyphCount = calculateGlyphCount(hdc, fLogFont); 1792ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1793ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info = new SkAdvancedTypefaceMetrics; 1794ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fEmSize = otm.otmEMSquare; 1795ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fMultiMaster = false; 1796ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fLastGlyphID = SkToU16(glyphCount - 1); 1797ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle = 0; 17987103f182ce61280eacb35f1832df350b642a5381bungeman@google.com tchar_to_skstring(lf.lfFaceName, &info->fFontName); 1799ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 18006744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org if (perGlyphInfo & SkAdvancedTypefaceMetrics::kToUnicode_PerGlyphInfo) { 18016744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org populate_glyph_to_unicode(hdc, glyphCount, &(info->fGlyphToUnicode)); 18026744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 18036744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 1804d41e70de196e78e21e1001d23a7259785cbd0835vandebo@chromium.org if (glyphCount > 0 && 1805d41e70de196e78e21e1001d23a7259785cbd0835vandebo@chromium.org (otm.otmTextMetrics.tmPitchAndFamily & TMPF_TRUETYPE)) { 1806ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fType = SkAdvancedTypefaceMetrics::kTrueType_Font; 1807ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 1808ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fType = SkAdvancedTypefaceMetrics::kOther_Font; 1809ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fItalicAngle = 0; 1810ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fAscent = 0; 1811ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fDescent = 0; 1812ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStemV = 0; 1813ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fCapHeight = 0; 1814ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fBBox = SkIRect::MakeEmpty(); 1815390c6d7a9018e233a6519397ac6c739fb21a99efedisonn@google.com goto ReturnInfo; 1816ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 18175aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org 1818ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // If this bit is clear the font is a fixed pitch font. 1819ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (!(otm.otmTextMetrics.tmPitchAndFamily & TMPF_FIXED_PITCH)) { 1820ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kFixedPitch_Style; 1821ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1822ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (otm.otmTextMetrics.tmItalic) { 1823ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kItalic_Style; 1824ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1825ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (otm.otmTextMetrics.tmPitchAndFamily & FF_ROMAN) { 1826ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kSerif_Style; 1827ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else if (otm.otmTextMetrics.tmPitchAndFamily & FF_SCRIPT) { 1828ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kScript_Style; 1829ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1830ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1831ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // The main italic angle of the font, in tenths of a degree counterclockwise 1832ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // from vertical. 1833ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fItalicAngle = otm.otmItalicAngle / 10; 1834ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fAscent = SkToS16(otm.otmTextMetrics.tmAscent); 1835ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fDescent = SkToS16(-otm.otmTextMetrics.tmDescent); 1836ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // TODO(ctguil): Use alternate cap height calculation. 1837ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // MSDN says otmsCapEmHeight is not support but it is returning a value on 1838ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // my Win7 box. 1839ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fCapHeight = otm.otmsCapEmHeight; 1840ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fBBox = 1841ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkIRect::MakeLTRB(otm.otmrcFontBox.left, otm.otmrcFontBox.top, 1842ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com otm.otmrcFontBox.right, otm.otmrcFontBox.bottom); 1843ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1844ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Figure out a good guess for StemV - Min width of i, I, !, 1. 1845ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // This probably isn't very good with an italic font. 184605b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com min_width = SHRT_MAX; 1847ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStemV = 0; 1848ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com for (size_t i = 0; i < SK_ARRAY_COUNT(stem_chars); i++) { 1849ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ABC abcWidths; 1850ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (GetCharABCWidths(hdc, stem_chars[i], stem_chars[i], &abcWidths)) { 1851ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int16_t width = abcWidths.abcB; 1852ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (width > 0 && width < min_width) { 1853ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com min_width = width; 1854ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStemV = min_width; 1855ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1856ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1857ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1858ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1859ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // If bit 1 is set, the font may not be embedded in a document. 1860ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // If bit 1 is clear, the font can be embedded. 1861ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // If bit 2 is set, the embedding is read-only. 1862ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (otm.otmfsType & 0x1) { 1863ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fType = SkAdvancedTypefaceMetrics::kNotEmbeddable_Font; 18640e6dc0a320985ffd31f77eed8a41e62132b9ba95ctguil@chromium.org } else if (perGlyphInfo & 18650e6dc0a320985ffd31f77eed8a41e62132b9ba95ctguil@chromium.org SkAdvancedTypefaceMetrics::kHAdvance_PerGlyphInfo) { 18665aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org if (info->fStyle & SkAdvancedTypefaceMetrics::kFixedPitch_Style) { 18675aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org appendRange(&info->fGlyphWidths, 0); 18685aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org info->fGlyphWidths->fAdvance.append(1, &min_width); 18695aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org finishRange(info->fGlyphWidths.get(), 0, 18705aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org SkAdvancedTypefaceMetrics::WidthRange::kDefault); 18715aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org } else { 18725aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org info->fGlyphWidths.reset( 187337ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org getAdvanceData(hdc, 187437ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org glyphCount, 187537ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org glyphIDs, 187637ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org glyphIDsCount, 187737ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org &getWidthAdvance)); 18785aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org } 1879ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1880ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1881ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comError: 1882390c6d7a9018e233a6519397ac6c739fb21a99efedisonn@google.comReturnInfo: 1883ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SelectObject(hdc, savefont); 1884ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteObject(designFont); 1885ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteObject(font); 1886ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteDC(hdc); 1887ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1888ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return info; 1889ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1890ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1891a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com//Dummy representation of a Base64 encoded GUID from create_unique_font_name. 1892a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#define BASE64_GUID_ID "XXXXXXXXXXXXXXXXXXXXXXXX" 1893a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com//Length of GUID representation from create_id, including NULL terminator. 1894a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#define BASE64_GUID_ID_LEN SK_ARRAY_COUNT(BASE64_GUID_ID) 1895a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1896a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comSK_COMPILE_ASSERT(BASE64_GUID_ID_LEN < LF_FACESIZE, GUID_longer_than_facesize); 1897a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1898a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 1899a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com NameID 6 Postscript names cannot have the character '/'. 1900a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com It would be easier to hex encode the GUID, but that is 32 bytes, 1901a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com and many systems have issues with names longer than 28 bytes. 1902a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com The following need not be any standard base64 encoding. 1903a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com The encoded value is never decoded. 1904a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com*/ 1905d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.comstatic const char postscript_safe_base64_encode[] = 1906a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com "ABCDEFGHIJKLMNOPQRSTUVWXYZ" 1907a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com "abcdefghijklmnopqrstuvwxyz" 1908a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com "0123456789-_="; 1909a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1910a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 1911a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com Formats a GUID into Base64 and places it into buffer. 1912a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com buffer should have space for at least BASE64_GUID_ID_LEN characters. 1913a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com The string will always be null terminated. 1914a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com XXXXXXXXXXXXXXXXXXXXXXXX0 1915a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 1916a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comstatic void format_guid_b64(const GUID& guid, char* buffer, size_t bufferSize) { 1917a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com SkASSERT(bufferSize >= BASE64_GUID_ID_LEN); 1918a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com size_t written = SkBase64::Encode(&guid, sizeof(guid), buffer, postscript_safe_base64_encode); 1919a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com SkASSERT(written < LF_FACESIZE); 1920a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com buffer[written] = '\0'; 1921a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com} 1922a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1923a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 1924a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com Creates a Base64 encoded GUID and places it into buffer. 1925a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com buffer should have space for at least BASE64_GUID_ID_LEN characters. 1926a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com The string will always be null terminated. 1927a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com XXXXXXXXXXXXXXXXXXXXXXXX0 1928a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 1929a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comstatic HRESULT create_unique_font_name(char* buffer, size_t bufferSize) { 1930a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com GUID guid = {}; 1931a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com if (FAILED(CoCreateGuid(&guid))) { 1932a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return E_UNEXPECTED; 1933a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1934a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com format_guid_b64(guid, buffer, bufferSize); 1935a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1936a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return S_OK; 1937a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com} 1938a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1939a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 1940a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com Introduces a font to GDI. On failure will return NULL. The returned handle 1941a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com should eventually be passed to RemoveFontMemResourceEx. 1942a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com*/ 1943a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comstatic HANDLE activate_font(SkData* fontData) { 1944a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com DWORD numFonts = 0; 1945a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com //AddFontMemResourceEx just copies the data, but does not specify const. 1946a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com HANDLE fontHandle = AddFontMemResourceEx(const_cast<void*>(fontData->data()), 19474b18f5767ab1df7fedf0ff2e3a9eac7f7c500c36bungeman@google.com static_cast<DWORD>(fontData->size()), 1948a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 0, 1949a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com &numFonts); 1950a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1951a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com if (fontHandle != NULL && numFonts < 1) { 1952a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com RemoveFontMemResourceEx(fontHandle); 1953a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return NULL; 1954a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1955a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1956a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return fontHandle; 1957a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com} 1958a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1959437eea160b2f605d9074106891288e85baaecfefreed@google.comstatic SkTypeface* create_from_stream(SkStream* stream) { 1960a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Create a unique and unpredictable font name. 1961a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Avoids collisions and access from CSS. 1962a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com char familyName[BASE64_GUID_ID_LEN]; 1963a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com const int familyNameSize = SK_ARRAY_COUNT(familyName); 1964a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com if (FAILED(create_unique_font_name(familyName, familyNameSize))) { 1965a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return NULL; 1966a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1967d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com 1968a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Change the name of the font. 1969e9bbee397ce96aa6642a42823feb1d7c4a8ffd8bbungeman@google.com SkAutoTUnref<SkData> rewrittenFontData(SkOTUtils::RenameFont(stream, familyName, familyNameSize-1)); 1970e9bbee397ce96aa6642a42823feb1d7c4a8ffd8bbungeman@google.com if (NULL == rewrittenFontData.get()) { 1971a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return NULL; 1972a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1973ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1974a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Register the font with GDI. 1975e9bbee397ce96aa6642a42823feb1d7c4a8ffd8bbungeman@google.com HANDLE fontReference = activate_font(rewrittenFontData.get()); 1976a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com if (NULL == fontReference) { 1977a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return NULL; 1978a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1979a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1980a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Create the typeface. 1981a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com LOGFONT lf; 1982484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com logfont_for_name(familyName, &lf); 1983a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1984a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return SkCreateFontMemResourceTypefaceFromLOGFONT(lf, fontReference); 1985ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1986ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1987437eea160b2f605d9074106891288e85baaecfefreed@google.comSkTypeface* SkFontHost::CreateTypefaceFromStream(SkStream* stream) { 1988437eea160b2f605d9074106891288e85baaecfefreed@google.com return create_from_stream(stream); 1989437eea160b2f605d9074106891288e85baaecfefreed@google.com} 1990437eea160b2f605d9074106891288e85baaecfefreed@google.com 19910042b9c2a2e6fe954cdfbcd5a5b7449cdf41a4c3reed@google.comSkStream* LogFontTypeface::onOpenStream(int* ttcIndex) const { 19920042b9c2a2e6fe954cdfbcd5a5b7449cdf41a4c3reed@google.com *ttcIndex = 0; 19930042b9c2a2e6fe954cdfbcd5a5b7449cdf41a4c3reed@google.com 1994f4c2622a1a3489988f2d85a81fdc132b17a92bddctguil@chromium.org const DWORD kTTCTag = 1995f4c2622a1a3489988f2d85a81fdc132b17a92bddctguil@chromium.org SkEndian_SwapBE32(SkSetFourByteTag('t', 't', 'c', 'f')); 19960042b9c2a2e6fe954cdfbcd5a5b7449cdf41a4c3reed@google.com LOGFONT lf = fLogFont; 1997ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1998ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HDC hdc = ::CreateCompatibleDC(NULL); 199959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com HFONT font = CreateFontIndirect(&lf); 2000ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT savefont = (HFONT)SelectObject(hdc, font); 2001ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 2002d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org SkMemoryStream* stream = NULL; 2003d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org DWORD tables[2] = {kTTCTag, 0}; 2004d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org for (int i = 0; i < SK_ARRAY_COUNT(tables); i++) { 20054b18f5767ab1df7fedf0ff2e3a9eac7f7c500c36bungeman@google.com DWORD bufferSize = GetFontData(hdc, tables[i], 0, NULL, 0); 200639698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (bufferSize == GDI_ERROR) { 2007055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com call_ensure_accessible(lf); 200839698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com bufferSize = GetFontData(hdc, tables[i], 0, NULL, 0); 200939698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 2010d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org if (bufferSize != GDI_ERROR) { 2011d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org stream = new SkMemoryStream(bufferSize); 20124b18f5767ab1df7fedf0ff2e3a9eac7f7c500c36bungeman@google.com if (GetFontData(hdc, tables[i], 0, (void*)stream->getMemoryBase(), bufferSize)) { 2013d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org break; 2014d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org } else { 2015d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org delete stream; 2016d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org stream = NULL; 2017d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org } 2018d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org } 2019ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 2020ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 2021ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SelectObject(hdc, savefont); 2022ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteObject(font); 2023ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteDC(hdc); 2024ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 2025ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return stream; 2026ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 2027ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 20287bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.comint LogFontTypeface::onCountGlyphs() const { 20297bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com HDC hdc = ::CreateCompatibleDC(NULL); 20307bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com HFONT font = CreateFontIndirect(&fLogFont); 20317bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com HFONT savefont = (HFONT)SelectObject(hdc, font); 20327bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 20337bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com unsigned int glyphCount = calculateGlyphCount(hdc, fLogFont); 20347bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 20357bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com SelectObject(hdc, savefont); 20367bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com DeleteObject(font); 20377bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com DeleteDC(hdc); 20387bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 20397bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com return glyphCount; 20407bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com} 20417bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 20427bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.comint LogFontTypeface::onGetUPEM() const { 20437bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com HDC hdc = ::CreateCompatibleDC(NULL); 20447bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com HFONT font = CreateFontIndirect(&fLogFont); 20457bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com HFONT savefont = (HFONT)SelectObject(hdc, font); 20467bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 20477bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com unsigned int upem = calculateUPEM(hdc, fLogFont); 20487bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 20497bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com SelectObject(hdc, savefont); 20507bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com DeleteObject(font); 20517bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com DeleteDC(hdc); 20527bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 20537bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com return upem; 20547bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com} 20557bdd614a1940935d3badeb54f7aae75d76ea830dbungeman@google.com 20560da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.comSkScalerContext* LogFontTypeface::onCreateScalerContext(const SkDescriptor* desc) const { 205784e22d847fc84727bc220947162363ee1fe068fcreed@google.com SkScalerContext_Windows* ctx = SkNEW_ARGS(SkScalerContext_Windows, 205884e22d847fc84727bc220947162363ee1fe068fcreed@google.com (const_cast<LogFontTypeface*>(this), desc)); 205984e22d847fc84727bc220947162363ee1fe068fcreed@google.com if (!ctx->isValid()) { 206084e22d847fc84727bc220947162363ee1fe068fcreed@google.com SkDELETE(ctx); 206184e22d847fc84727bc220947162363ee1fe068fcreed@google.com ctx = NULL; 206284e22d847fc84727bc220947162363ee1fe068fcreed@google.com } 206384e22d847fc84727bc220947162363ee1fe068fcreed@google.com return ctx; 2064ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 2065ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 2066ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com/** Return the closest matching typeface given either an existing family 2067ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com (specified by a typeface in that family) or by a familyName, and a 2068ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com requested style. 206990d812b77ab025d5fd01dab904287f5c5bf56228bungeman@google.com 1) If familyFace is null, use familyName. 207090d812b77ab025d5fd01dab904287f5c5bf56228bungeman@google.com 2) If familyName is null, use familyFace. 2071ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 3) If both are null, return the default font that best matches style 2072ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com This MUST not return NULL. 2073ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com */ 2074ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 2075ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comSkTypeface* SkFontHost::CreateTypeface(const SkTypeface* familyFace, 2076ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com const char familyName[], 2077ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkTypeface::Style style) { 207859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LOGFONT lf; 2079ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (NULL == familyFace && NULL == familyName) { 208059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf = get_default_font(); 208159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } else if (familyFace) { 208259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LogFontTypeface* face = (LogFontTypeface*)familyFace; 208359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf = face->fLogFont; 2084ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 2085484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com logfont_for_name(familyName, &lf); 2086ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 208759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com setStyle(&lf, style); 208859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com return SkCreateTypefaceFromLOGFONT(lf); 2089ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 2090ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 2091ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comSkTypeface* SkFontHost::CreateTypefaceFromFile(const char path[]) { 2092f381162e5616daacdbcc06d693aca5111aeeebe8mike@reedtribe.org SkAutoTUnref<SkStream> stream(SkStream::NewFromFile(path)); 2093f381162e5616daacdbcc06d693aca5111aeeebe8mike@reedtribe.org return stream.get() ? CreateTypefaceFromStream(stream) : NULL; 2094ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 2095ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 20960da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.comvoid LogFontTypeface::onFilterRec(SkScalerContextRec* rec) const { 2097c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org if (rec->fFlags & SkScalerContext::kLCD_BGROrder_Flag || 2098c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org rec->fFlags & SkScalerContext::kLCD_Vertical_Flag) 2099c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org { 2100c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org rec->fMaskFormat = SkMask::kA8_Format; 2101c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org rec->fFlags |= SkScalerContext::kGenA8FromLCD_Flag; 2102c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org } 2103c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org 2104e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com unsigned flagsWeDontSupport = SkScalerContext::kDevKernText_Flag | 2105e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kAutohinting_Flag | 2106e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kEmbeddedBitmapText_Flag | 2107e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kEmbolden_Flag | 2108e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kLCD_BGROrder_Flag | 2109e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kLCD_Vertical_Flag; 2110e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com rec->fFlags &= ~flagsWeDontSupport; 2111e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com 2112e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkPaint::Hinting h = rec->getHinting(); 2113e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com switch (h) { 2114e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kNo_Hinting: 21150abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com break; 2116e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kSlight_Hinting: 21170abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // Only do slight hinting when axis aligned. 21187c86d8eb3a61eae188bc8af2cd0363858eaea07ebungeman@google.com // TODO: re-enable slight hinting when FontHostTest can pass. 21197c86d8eb3a61eae188bc8af2cd0363858eaea07ebungeman@google.com //if (!isAxisAligned(*rec)) { 21200abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com h = SkPaint::kNo_Hinting; 21217c86d8eb3a61eae188bc8af2cd0363858eaea07ebungeman@google.com //} 2122e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com break; 2123e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kNormal_Hinting: 2124e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kFull_Hinting: 21250abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // TODO: need to be able to distinguish subpixel positioned glyphs 21260abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com // and linear metrics. 21270abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com //rec->fFlags &= ~SkScalerContext::kSubpixelPositioning_Flag; 2128e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com h = SkPaint::kNormal_Hinting; 2129e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com break; 2130e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com default: 21310c00f21fee3f5cfa3aa7e5d46ff94cb8cf340451tomhudson@google.com SkDEBUGFAIL("unknown hinting"); 2132e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com } 21330abbff9987b9452fd30cce198bea34fdb210ac41bungeman@google.com //TODO: if this is a bitmap font, squash hinting and subpixel. 2134e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com rec->setHinting(h); 2135da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com 21369181aa84aa288d2bc3ab079b6b40a79ac87d8807reed@google.com// turn this off since GDI might turn A8 into BW! Need a bigger fix. 21379181aa84aa288d2bc3ab079b6b40a79ac87d8807reed@google.com#if 0 2138da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com // Disable LCD when rotated, since GDI's output is ugly 2139da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com if (isLCD(*rec) && !isAxisAligned(*rec)) { 2140da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com rec->fMaskFormat = SkMask::kA8_Format; 2141da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com } 21429181aa84aa288d2bc3ab079b6b40a79ac87d8807reed@google.com#endif 2143754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com 21440da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.com if (!fCanBeLCD && isLCD(*rec)) { 2145cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com rec->fMaskFormat = SkMask::kA8_Format; 2146cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com rec->fFlags &= ~SkScalerContext::kGenA8FromLCD_Flag; 2147754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } 2148754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com} 2149070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.com 2150070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.com/////////////////////////////////////////////////////////////////////////////// 2151070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.com 2152070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.com#include "SkFontMgr.h" 2153484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com#include "SkDataTable.h" 2154484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2155484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comstatic bool valid_logfont_for_enum(const LOGFONT& lf, DWORD fontType) { 2156484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return TRUETYPE_FONTTYPE == fontType 2157484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com && lf.lfFaceName[0] 2158484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com && lf.lfFaceName[0] != '@' 2159484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com && OUT_STROKE_PRECIS == lf.lfOutPrecision 2160484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com // without the chraset check, we got LOTS of dups of the same font 2161484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com // is there a better check (other than searching the array for 2162484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com // the same name? 2163484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com && 0 == lf.lfCharSet 2164484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ; 2165484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com} 2166484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2167484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comstatic int CALLBACK enum_fonts_proc(const LOGFONT* lf, const TEXTMETRIC*, 2168484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com DWORD fontType, LPARAM builderParam) { 2169484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com if (valid_logfont_for_enum(*lf, fontType)) { 2170a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com SkTDArray<ENUMLOGFONTEX>* array = (SkTDArray<ENUMLOGFONTEX>*)builderParam; 2171a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com *array->append() = *(ENUMLOGFONTEX*)lf; 2172484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2173484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return 1; // non-zero means continue 2174484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com} 2175484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2176484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comstatic SkFontStyle compute_fontstyle(const LOGFONT& lf) { 2177484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return SkFontStyle(lf.lfWeight, SkFontStyle::kNormal_Width, 2178484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com lf.lfItalic ? SkFontStyle::kItalic_Slant 2179484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com : SkFontStyle::kUpright_Slant); 2180484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com} 2181484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2182484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comclass SkFontStyleSetGDI : public SkFontStyleSet { 2183484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.compublic: 2184a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com SkFontStyleSetGDI(const TCHAR familyName[]) { 2185484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com HDC hdc = ::CreateCompatibleDC(NULL); 2186a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com ::EnumFonts(hdc, familyName, enum_fonts_proc, (LPARAM)&fArray); 2187484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ::DeleteDC(hdc); 2188484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2189484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2190484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual int count() SK_OVERRIDE { 2191484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return fArray.count(); 2192484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2193484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2194484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual void getStyle(int index, SkFontStyle* fs, SkString* styleName) SK_OVERRIDE { 2195484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com if (fs) { 2196a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com *fs = compute_fontstyle(fArray[index].elfLogFont); 2197a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com } 2198a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com if (styleName) { 2199a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com const ENUMLOGFONTEX& ref = fArray[index]; 2200a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com // For some reason, ENUMLOGFONTEX and LOGFONT disagree on their type in the 2201a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com // non-unicode version. 2202a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com // ENUMLOGFONTEX uses BYTE 2203a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com // LOGFONT uses CHAR 2204a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com // Here we assert they that the style name is logically the same (size) as 2205a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com // a TCHAR, so we can use the same converter function. 2206a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com SkASSERT(sizeof(TCHAR) == sizeof(ref.elfStyle[0])); 2207a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com tchar_to_skstring((const TCHAR*)ref.elfStyle, styleName); 2208484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2209484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2210484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2211484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual SkTypeface* createTypeface(int index) SK_OVERRIDE { 2212a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com return SkCreateTypefaceFromLOGFONT(fArray[index].elfLogFont); 2213484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2214484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2215484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual SkTypeface* matchStyle(const SkFontStyle& pattern) SK_OVERRIDE { 2216484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com // todo: 2217a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com return SkCreateTypefaceFromLOGFONT(fArray[0].elfLogFont); 2218484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2219484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2220484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comprivate: 2221a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com SkTDArray<ENUMLOGFONTEX> fArray; 2222484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com}; 2223484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2224484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comstatic int CALLBACK enum_family_proc(const LOGFONT* lf, const TEXTMETRIC* tm, 2225484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com DWORD fontType, LPARAM builderParam) { 2226484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com if (valid_logfont_for_enum(*lf, fontType)) { 2227a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com SkTDArray<ENUMLOGFONTEX>* array = (SkTDArray<ENUMLOGFONTEX>*)builderParam; 2228a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com *array->append() = *(ENUMLOGFONTEX*)lf; 2229484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com#if 0 2230484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com SkString str; 2231484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com tchar_to_skstring(lf->lfFaceName, &str); 2232484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com SkDebugf("fam:%s height:%d width:%d esc:%d orien:%d weight:%d ital:%d char:%d clip:%d qual:%d pitch:%d\n", 2233484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com str.c_str(), lf->lfHeight, lf->lfWidth, lf->lfEscapement, lf->lfOrientation, 2234484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com lf->lfWeight, lf->lfItalic, lf->lfCharSet, lf->lfClipPrecision, lf->lfQuality, 2235484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com lf->lfPitchAndFamily); 2236484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com#endif 2237484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2238484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return 1; // non-zero means continue 2239484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com} 2240484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2241484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comclass SkFontMgrGDI : public SkFontMgr { 2242484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com void init() { 2243484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com if (!fLogFontArray.isEmpty()) { 2244484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return; 2245484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2246484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2247484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com LOGFONT lf; 2248484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com sk_bzero(&lf, sizeof(lf)); 2249484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com lf.lfCharSet = DEFAULT_CHARSET; 2250484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2251484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com HDC hdc = ::CreateCompatibleDC(NULL); 2252484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ::EnumFontFamiliesEx(hdc, &lf, enum_family_proc, (LPARAM)&fLogFontArray, 0); 2253484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ::DeleteDC(hdc); 2254484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2255484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2256484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.compublic: 2257484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com SkFontMgrGDI() {} 2258484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2259484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comprotected: 2260484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual int onCountFamilies() SK_OVERRIDE { 2261484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com this->init(); 2262484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return fLogFontArray.count(); 2263484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2264484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2265484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual void onGetFamilyName(int index, SkString* familyName) SK_OVERRIDE { 2266484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com this->init(); 2267484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com SkASSERT((unsigned)index < (unsigned)fLogFontArray.count()); 2268a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com tchar_to_skstring(fLogFontArray[index].elfLogFont.lfFaceName, familyName); 2269484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2270484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2271484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual SkFontStyleSet* onCreateStyleSet(int index) SK_OVERRIDE { 2272484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com this->init(); 2273484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com SkASSERT((unsigned)index < (unsigned)fLogFontArray.count()); 2274a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com return SkNEW_ARGS(SkFontStyleSetGDI, (fLogFontArray[index].elfLogFont.lfFaceName)); 2275484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2276484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2277484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual SkFontStyleSet* onMatchFamily(const char familyName[]) SK_OVERRIDE { 2278484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com if (NULL == familyName) { 2279484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com familyName = ""; // do we need this check??? 2280484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2281484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com LOGFONT lf; 2282484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com logfont_for_name(familyName, &lf); 2283a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com return SkNEW_ARGS(SkFontStyleSetGDI, (lf.lfFaceName)); 2284484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2285484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2286484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual SkTypeface* onMatchFamilyStyle(const char familyName[], 2287484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com const SkFontStyle& fontstyle) SK_OVERRIDE { 2288437eea160b2f605d9074106891288e85baaecfefreed@google.com // could be in base impl 2289484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com SkAutoTUnref<SkFontStyleSet> sset(this->matchFamily(familyName)); 2290484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return sset->matchStyle(fontstyle); 2291484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2292484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2293484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual SkTypeface* onMatchFaceStyle(const SkTypeface* familyMember, 2294484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com const SkFontStyle& fontstyle) SK_OVERRIDE { 2295437eea160b2f605d9074106891288e85baaecfefreed@google.com // could be in base impl 2296484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com SkString familyName; 2297484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ((LogFontTypeface*)familyMember)->getFamilyName(&familyName); 2298484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return this->matchFamilyStyle(familyName.c_str(), fontstyle); 2299484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2300484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2301437eea160b2f605d9074106891288e85baaecfefreed@google.com virtual SkTypeface* onCreateFromStream(SkStream* stream, int ttcIndex) SK_OVERRIDE { 2302437eea160b2f605d9074106891288e85baaecfefreed@google.com return create_from_stream(stream); 2303484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2304437eea160b2f605d9074106891288e85baaecfefreed@google.com 2305437eea160b2f605d9074106891288e85baaecfefreed@google.com virtual SkTypeface* onCreateFromData(SkData* data, int ttcIndex) SK_OVERRIDE { 2306437eea160b2f605d9074106891288e85baaecfefreed@google.com // could be in base impl 2307437eea160b2f605d9074106891288e85baaecfefreed@google.com SkAutoTUnref<SkStream> stream(SkNEW_ARGS(SkMemoryStream, (data))); 2308437eea160b2f605d9074106891288e85baaecfefreed@google.com return this->createFromStream(stream); 2309484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2310437eea160b2f605d9074106891288e85baaecfefreed@google.com 2311484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual SkTypeface* onCreateFromFile(const char path[], int ttcIndex) SK_OVERRIDE { 2312437eea160b2f605d9074106891288e85baaecfefreed@google.com // could be in base impl 2313437eea160b2f605d9074106891288e85baaecfefreed@google.com SkAutoTUnref<SkStream> stream(SkStream::NewFromFile(path)); 2314437eea160b2f605d9074106891288e85baaecfefreed@google.com return this->createFromStream(stream); 2315484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 2316484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 2317484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comprivate: 2318a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com SkTDArray<ENUMLOGFONTEX> fLogFontArray; 2319484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com}; 2320070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.com 2321070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.comSkFontMgr* SkFontMgr::Factory() { 2322484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return SkNEW(SkFontMgrGDI); 2323070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.com} 2324