SkFontHost_win.cpp revision 94b366a3e8ed7f03b4417f45999572399e6e591c
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" 18a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include "SkOTUtils.h" 1927889877c0e3c909dd4afd7b5e7b1d58cbf61ae6reed@google.com#include "SkPath.h" 20ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkStream.h" 21a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include "SkString.h" 22ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkThread.h" 23ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkTypeface_win.h" 2459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com#include "SkTypefaceCache.h" 25ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkUtils.h" 26ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 27a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include "SkTypes.h" 28a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include <tchar.h> 29a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include <usp10.h> 30a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include <objbase.h> 31ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 32f210f505ffffccc15ae5e91f8ccb9763ba7fc152reed@google.comstatic void (*gEnsureLOGFONTAccessibleProc)(const LOGFONT&); 33f210f505ffffccc15ae5e91f8ccb9763ba7fc152reed@google.com 34f210f505ffffccc15ae5e91f8ccb9763ba7fc152reed@google.comvoid SkTypeface_SetEnsureLOGFONTAccessibleProc(void (*proc)(const LOGFONT&)) { 35f210f505ffffccc15ae5e91f8ccb9763ba7fc152reed@google.com gEnsureLOGFONTAccessibleProc = proc; 36f210f505ffffccc15ae5e91f8ccb9763ba7fc152reed@google.com} 37f210f505ffffccc15ae5e91f8ccb9763ba7fc152reed@google.com 38055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.comstatic void call_ensure_accessible(const LOGFONT& lf) { 39055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com if (gEnsureLOGFONTAccessibleProc) { 40055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com gEnsureLOGFONTAccessibleProc(lf); 41055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com } 42055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com} 43055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com 44055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com/////////////////////////////////////////////////////////////////////////////// 45055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com 466f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com// always packed xxRRGGBB 476f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.comtypedef uint32_t SkGdiRGB; 486f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com 496f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.comtemplate <typename T> T* SkTAddByteOffset(T* ptr, size_t byteOffset) { 506f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com return (T*)((char*)ptr + byteOffset); 516f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com} 526f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com 53a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com// define this in your Makefile or .gyp to enforce AA requests 54a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com// which GDI ignores at small sizes. This flag guarantees AA 55a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com// for rotated text, regardless of GDI's notions. 56a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com//#define SK_ENFORCE_ROTATED_TEXT_AA_ON_WINDOWS 57a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 58ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com// client3d has to undefine this for now 59ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#define CAN_USE_LOGFONT_NAME 60ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 6182a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.comstatic bool isLCD(const SkScalerContext::Rec& rec) { 6282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com return SkMask::kLCD16_Format == rec.fMaskFormat || 6382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com SkMask::kLCD32_Format == rec.fMaskFormat; 6482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com} 6582a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 66a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.comstatic bool bothZero(SkScalar a, SkScalar b) { 67a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com return 0 == a && 0 == b; 68a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com} 69a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 70a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com// returns false if there is any non-90-rotation or skew 71a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.comstatic bool isAxisAligned(const SkScalerContext::Rec& rec) { 72a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com return 0 == rec.fPreSkewX && 73a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com (bothZero(rec.fPost2x2[0][1], rec.fPost2x2[1][0]) || 74a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com bothZero(rec.fPost2x2[0][0], rec.fPost2x2[1][1])); 75a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com} 76a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 77a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.comstatic bool needToRenderWithSkia(const SkScalerContext::Rec& rec) { 78a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com#ifdef SK_ENFORCE_ROTATED_TEXT_AA_ON_WINDOWS 79a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // What we really want to catch is when GDI will ignore the AA request and give 80a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // us BW instead. Smallish rotated text is one heuristic, so this code is just 81a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // an approximation. We shouldn't need to do this for larger sizes, but at those 82a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // sizes, the quality difference gets less and less between our general 83a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // scanconverter and GDI's. 84a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com if (SkMask::kA8_Format == rec.fMaskFormat && !isAxisAligned(rec)) { 85a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com return true; 86a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com } 87a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com#endif 88a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // false means allow GDI to generate the bits 89a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com return false; 90a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com} 91a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 92ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comusing namespace skia_advanced_typeface_metrics_utils; 93ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 94ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic const uint16_t BUFFERSIZE = (16384 - 32); 95ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic uint8_t glyphbuf[BUFFERSIZE]; 96ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 97ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com/** 985aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org * Since LOGFONT wants its textsize as an int, and we support fractional sizes, 99ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com * and since we have a cache of LOGFONTs for our tyepfaces, we always set the 100ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com * lfHeight to a canonical size, and then we use the 2x2 matrix to achieve the 101ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com * actual requested size. 10260af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com * 10360af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com * Not critical to match the font's upem, but we want it big enough to avoid 10460af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com * precision loss for GDI calls that return ints (e.g. GetOutlineFontMetrics). 105ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com */ 10660af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.comstatic const int gCanonicalTextSize = 2048; 107ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 108a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.comstatic void tchar_to_skstring(const TCHAR t[], SkString* s) { 109484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com#ifdef UNICODE 110484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com size_t sSize = WideCharToMultiByte(CP_UTF8, 0, t, -1, NULL, 0, NULL, NULL); 111484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com s->resize(sSize); 112484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com WideCharToMultiByte(CP_UTF8, 0, t, -1, s->writable_str(), sSize, NULL, NULL); 113484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com#else 114484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com s->set(t); 115484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com#endif 116484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com} 117484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 118ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic void make_canonical(LOGFONT* lf) { 1195aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org lf->lfHeight = -gCanonicalTextSize; 12059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf->lfQuality = CLEARTYPE_QUALITY;//PROOF_QUALITY; 12159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf->lfCharSet = DEFAULT_CHARSET; 12282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com// lf->lfClipPrecision = 64; 12359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com} 12459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 12590d812b77ab025d5fd01dab904287f5c5bf56228bungeman@google.comstatic SkTypeface::Style get_style(const LOGFONT& lf) { 12659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com unsigned style = 0; 12759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com if (lf.lfWeight >= FW_BOLD) { 12859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com style |= SkTypeface::kBold; 12959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } 13059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com if (lf.lfItalic) { 13159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com style |= SkTypeface::kItalic; 13259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } 13390d812b77ab025d5fd01dab904287f5c5bf56228bungeman@google.com return static_cast<SkTypeface::Style>(style); 13459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com} 13559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 13659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.comstatic void setStyle(LOGFONT* lf, SkTypeface::Style style) { 13759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf->lfWeight = (style & SkTypeface::kBold) != 0 ? FW_BOLD : FW_NORMAL ; 13859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf->lfItalic = ((style & SkTypeface::kItalic) != 0); 139ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 140ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 141ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic inline FIXED SkFixedToFIXED(SkFixed x) { 142ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return *(FIXED*)(&x); 143ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 144a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.comstatic inline SkFixed SkFIXEDToFixed(FIXED x) { 145a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com return *(SkFixed*)(&x); 146a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com} 147ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 148ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic inline FIXED SkScalarToFIXED(SkScalar x) { 149ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkFixedToFIXED(SkScalarToFixed(x)); 150ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 151ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 152a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.comstatic unsigned calculateOutlineGlyphCount(HDC hdc) { 153ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // The 'maxp' table stores the number of glyphs at offset 4, in 2 bytes. 154f4c2622a1a3489988f2d85a81fdc132b17a92bddctguil@chromium.org const DWORD maxpTag = 155f4c2622a1a3489988f2d85a81fdc132b17a92bddctguil@chromium.org SkEndian_SwapBE32(SkSetFourByteTag('m', 'a', 'x', 'p')); 156ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com uint16_t glyphs; 157ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (GetFontData(hdc, maxpTag, 4, &glyphs, sizeof(glyphs)) != GDI_ERROR) { 158ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkEndian_SwapBE16(glyphs); 159ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1605aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org 161ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Binary search for glyph count. 162ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com static const MAT2 mat2 = {{0, 1}, {0, 0}, {0, 0}, {0, 1}}; 163ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int32_t max = SK_MaxU16 + 1; 164ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int32_t min = 0; 165ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com GLYPHMETRICS gm; 166ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com while (min < max) { 167ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int32_t mid = min + ((max - min) / 2); 168ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (GetGlyphOutlineW(hdc, mid, GGO_METRICS | GGO_GLYPH_INDEX, &gm, 0, 169ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com NULL, &mat2) == GDI_ERROR) { 170ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com max = mid; 171ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 172ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com min = mid + 1; 173ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 174ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 175ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(min == max); 176ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return min; 177ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 178ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 179ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comclass LogFontTypeface : public SkTypeface { 180ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.compublic: 181cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com LogFontTypeface(SkTypeface::Style style, SkFontID fontID, const LOGFONT& lf, bool serializeAsStream = false) : 182cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com SkTypeface(style, fontID, false), fLogFont(lf), fSerializeAsStream(serializeAsStream) { 183cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com 184cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com // If the font has cubic outlines, it will not be rendered with ClearType. 185cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com HFONT font = CreateFontIndirect(&lf); 186cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com 187cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com HDC deviceContext = ::CreateCompatibleDC(NULL); 188cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com HFONT savefont = (HFONT)SelectObject(deviceContext, font); 189cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com 190cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com TEXTMETRIC textMetric; 191cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com if (0 == GetTextMetrics(deviceContext, &textMetric)) { 192055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com call_ensure_accessible(lf); 193cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com if (0 == GetTextMetrics(deviceContext, &textMetric)) { 194cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com textMetric.tmPitchAndFamily = TMPF_TRUETYPE; 195cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com } 196cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com } 197cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com if (deviceContext) { 198cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com ::SelectObject(deviceContext, savefont); 199cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com ::DeleteDC(deviceContext); 200cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com } 201cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com if (font) { 202cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com ::DeleteObject(font); 203cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com } 204cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com 205fe74765f0d302669ae49e68074492bdfe0ce6e6fbungeman@google.com // The fixed pitch bit is set if the font is *not* fixed pitch. 206fe74765f0d302669ae49e68074492bdfe0ce6e6fbungeman@google.com this->setIsFixedPitch((textMetric.tmPitchAndFamily & TMPF_FIXED_PITCH) == 0); 207fe74765f0d302669ae49e68074492bdfe0ce6e6fbungeman@google.com 208cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com // Used a logfont on a memory context, should never get a device font. 209cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com // Therefore all TMPF_DEVICE will be PostScript (cubic) fonts. 210cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com fCanBeLCD = !((textMetric.tmPitchAndFamily & TMPF_VECTOR) && 211cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com (textMetric.tmPitchAndFamily & TMPF_DEVICE)); 212cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com } 213ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 214484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com void getFamilyName(SkString* name) const { 215484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com tchar_to_skstring(fLogFont.lfFaceName, name); 216484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 217484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 21859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LOGFONT fLogFont; 219e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com bool fSerializeAsStream; 220cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com bool fCanBeLCD; 221ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 22259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com static LogFontTypeface* Create(const LOGFONT& lf) { 22390d812b77ab025d5fd01dab904287f5c5bf56228bungeman@google.com SkTypeface::Style style = get_style(lf); 22459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com SkFontID fontID = SkTypefaceCache::NewFontID(); 22559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com return new LogFontTypeface(style, fontID, lf); 226ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 2270da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.com 228055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com static void EnsureAccessible(const SkTypeface* face) { 229055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com call_ensure_accessible(static_cast<const LogFontTypeface*>(face)->fLogFont); 230055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com } 231055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com 2320da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.comprotected: 2330042b9c2a2e6fe954cdfbcd5a5b7449cdf41a4c3reed@google.com virtual SkStream* onOpenStream(int* ttcIndex) const SK_OVERRIDE; 2340da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.com virtual SkScalerContext* onCreateScalerContext(const SkDescriptor*) const SK_OVERRIDE; 2350da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.com virtual void onFilterRec(SkScalerContextRec*) const SK_OVERRIDE; 2362689f615e364dc48ad73826564f5b13d2329179dreed@google.com virtual SkAdvancedTypefaceMetrics* onGetAdvancedTypefaceMetrics( 2372689f615e364dc48ad73826564f5b13d2329179dreed@google.com SkAdvancedTypefaceMetrics::PerGlyphInfo, 2382689f615e364dc48ad73826564f5b13d2329179dreed@google.com const uint32_t*, uint32_t) const SK_OVERRIDE; 2395526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.com virtual void onGetFontDescriptor(SkFontDescriptor*, bool*) const SK_OVERRIDE; 240ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com}; 241ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 242a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comclass FontMemResourceTypeface : public LogFontTypeface { 243a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.compublic: 244a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com /** 245a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com * Takes ownership of fontMemResource. 246a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 247a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com FontMemResourceTypeface(SkTypeface::Style style, SkFontID fontID, const LOGFONT& lf, HANDLE fontMemResource) : 248cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com LogFontTypeface(style, fontID, lf, true), fFontMemResource(fontMemResource) { 249e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com } 250a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 251a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com HANDLE fFontMemResource; 252a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 253a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com /** 254a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com * The created FontMemResourceTypeface takes ownership of fontMemResource. 255a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 256a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com static FontMemResourceTypeface* Create(const LOGFONT& lf, HANDLE fontMemResource) { 257a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com SkTypeface::Style style = get_style(lf); 258a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com SkFontID fontID = SkTypefaceCache::NewFontID(); 259a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return new FontMemResourceTypeface(style, fontID, lf, fontMemResource); 260a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 261a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 262a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comprotected: 263a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com virtual void weak_dispose() const SK_OVERRIDE { 264a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com RemoveFontMemResourceEx(fFontMemResource); 265a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com //SkTypefaceCache::Remove(this); 266a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com INHERITED::weak_dispose(); 267a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 268a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 269a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comprivate: 270a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com typedef LogFontTypeface INHERITED; 271a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com}; 272a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 273ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic const LOGFONT& get_default_font() { 274ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com static LOGFONT gDefaultFont; 275ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return gDefaultFont; 276ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 277ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 27859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.comstatic bool FindByLogFont(SkTypeface* face, SkTypeface::Style requestedStyle, void* ctx) { 279a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com LogFontTypeface* lface = static_cast<LogFontTypeface*>(face); 28059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com const LOGFONT* lf = reinterpret_cast<const LOGFONT*>(ctx); 281ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 282a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return lface && 283a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com get_style(lface->fLogFont) == requestedStyle && 28459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com !memcmp(&lface->fLogFont, lf, sizeof(LOGFONT)); 28559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com} 28659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 28759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com/** 28859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com * This guy is public. It first searches the cache, and if a match is not found, 28959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com * it creates a new face. 29059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com */ 29159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.comSkTypeface* SkCreateTypefaceFromLOGFONT(const LOGFONT& origLF) { 29259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LOGFONT lf = origLF; 29359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com make_canonical(&lf); 294ee51d1a6e43615ae640410013c36d2d9873e6aa5bungeman@google.com SkTypeface* face = SkTypefaceCache::FindByProcAndRef(FindByLogFont, &lf); 295ee51d1a6e43615ae640410013c36d2d9873e6aa5bungeman@google.com if (NULL == face) { 29659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com face = LogFontTypeface::Create(lf); 29790d812b77ab025d5fd01dab904287f5c5bf56228bungeman@google.com SkTypefaceCache::Add(face, get_style(lf)); 29859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } 29959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com return face; 300ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 301ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 302db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com/** 303a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com * The created SkTypeface takes ownership of fontMemResource. 304a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 305a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comSkTypeface* SkCreateFontMemResourceTypefaceFromLOGFONT(const LOGFONT& origLF, HANDLE fontMemResource) { 306a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com LOGFONT lf = origLF; 307a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com make_canonical(&lf); 308a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com FontMemResourceTypeface* face = FontMemResourceTypeface::Create(lf, fontMemResource); 309a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com SkTypefaceCache::Add(face, get_style(lf), false); 310a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return face; 311a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com} 312a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 313a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 314db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com * This guy is public 315db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com */ 316db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.comvoid SkLOGFONTFromTypeface(const SkTypeface* face, LOGFONT* lf) { 317db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com if (NULL == face) { 318db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com *lf = get_default_font(); 319db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com } else { 320a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com *lf = static_cast<const LogFontTypeface*>(face)->fLogFont; 321db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com } 322db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com} 323db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com 32459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.comstatic void GetLogFontByID(SkFontID fontID, LOGFONT* lf) { 325a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com LogFontTypeface* face = static_cast<LogFontTypeface*>(SkTypefaceCache::FindByID(fontID)); 32659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com if (face) { 32759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com *lf = face->fLogFont; 32859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } else { 32959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com sk_bzero(lf, sizeof(LOGFONT)); 33059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } 33159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com} 33259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 3336744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// Construct Glyph to Unicode table. 3346744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// Unicode code points that require conjugate pairs in utf16 are not 3356744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// supported. 3366744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// TODO(arthurhsu): Add support for conjugate pairs. It looks like that may 3376744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// require parsing the TTF cmap table (platform 4, encoding 12) directly instead 3386744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// of calling GetFontUnicodeRange(). 3396744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.orgstatic void populate_glyph_to_unicode(HDC fontHdc, const unsigned glyphCount, 3406744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkTDArray<SkUnichar>* glyphToUnicode) { 3416744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org DWORD glyphSetBufferSize = GetFontUnicodeRanges(fontHdc, NULL); 3426744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org if (!glyphSetBufferSize) { 3436744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org return; 3446744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 3456744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 3466744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkAutoTDeleteArray<BYTE> glyphSetBuffer(new BYTE[glyphSetBufferSize]); 3476744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org GLYPHSET* glyphSet = 3486744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org reinterpret_cast<LPGLYPHSET>(glyphSetBuffer.get()); 3496744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org if (GetFontUnicodeRanges(fontHdc, glyphSet) != glyphSetBufferSize) { 3506744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org return; 3516744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 3526744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 3536744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org glyphToUnicode->setCount(glyphCount); 3546744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org memset(glyphToUnicode->begin(), 0, glyphCount * sizeof(SkUnichar)); 3556744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org for (DWORD i = 0; i < glyphSet->cRanges; ++i) { 3566744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // There is no guarantee that within a Unicode range, the corresponding 3576744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // glyph id in a font file are continuous. So, even if we have ranges, 3586744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // we can't just use the first and last entry of the range to compute 3596744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // result. We need to enumerate them one by one. 3606744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org int count = glyphSet->ranges[i].cGlyphs; 3616744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkAutoTArray<WCHAR> chars(count + 1); 3626744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org chars[count] = 0; // termintate string 3636744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkAutoTArray<WORD> glyph(count); 3646744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org for (USHORT j = 0; j < count; ++j) { 3656744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org chars[j] = glyphSet->ranges[i].wcLow + j; 3666744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 3676744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org GetGlyphIndicesW(fontHdc, chars.get(), count, glyph.get(), 3686744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org GGI_MARK_NONEXISTING_GLYPHS); 3696744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // If the glyph ID is valid, and the glyph is not mapped, then we will 3706744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // fill in the char id into the vector. If the glyph is mapped already, 3716744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // skip it. 3726744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // TODO(arthurhsu): better improve this. e.g. Get all used char ids from 3736744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // font cache, then generate this mapping table from there. It's 3746744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // unlikely to have collisions since glyph reuse happens mostly for 3756744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // different Unicode pages. 3766744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org for (USHORT j = 0; j < count; ++j) { 3776744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org if (glyph[j] != 0xffff && glyph[j] < glyphCount && 3786744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org (*glyphToUnicode)[glyph[j]] == 0) { 3796744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org (*glyphToUnicode)[glyph[j]] = chars[j]; 3806744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 3816744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 3826744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 3836744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org} 3846744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 38599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com////////////////////////////////////////////////////////////////////////////////////// 38699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 38799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.comstatic int alignTo32(int n) { 38899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com return (n + 31) & ~31; 38999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com} 39099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 39199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.comstruct MyBitmapInfo : public BITMAPINFO { 39299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com RGBQUAD fMoreSpaceForColors[1]; 39399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com}; 39499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 39599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.comclass HDCOffscreen { 39699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.compublic: 39799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HDCOffscreen() { 39899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fFont = 0; 39999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fDC = 0; 40099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fBM = 0; 40199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fBits = NULL; 40299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fWidth = fHeight = 0; 40399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fIsBW = false; 40499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 40599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 40699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com ~HDCOffscreen() { 40799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (fDC) { 40899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com DeleteDC(fDC); 40999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 41099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (fBM) { 41199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com DeleteObject(fBM); 41299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 41399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 41499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 41599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com void init(HFONT font, const XFORM& xform) { 41699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fFont = font; 41799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fXform = xform; 41899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 41999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 42097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const void* draw(const SkGlyph&, bool isBW, size_t* srcRBPtr); 42199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 42299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.comprivate: 42399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HDC fDC; 42499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HBITMAP fBM; 42599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HFONT fFont; 42699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com XFORM fXform; 42799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com void* fBits; // points into fBM 42899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com int fWidth; 42999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com int fHeight; 43099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com bool fIsBW; 431754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com 432754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com enum { 433754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com // will always trigger us to reset the color, since we 4346f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com // should only store 0 or 0x00FFFFFF or gray (0x007F7F7F) 435754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com kInvalid_Color = 12345 436754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com }; 43799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com}; 43899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 439754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.comconst void* HDCOffscreen::draw(const SkGlyph& glyph, bool isBW, 44097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com size_t* srcRBPtr) { 44199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (0 == fDC) { 44299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fDC = CreateCompatibleDC(0); 44399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (0 == fDC) { 44499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com return NULL; 44599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 44699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SetGraphicsMode(fDC, GM_ADVANCED); 44799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SetBkMode(fDC, TRANSPARENT); 44899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SetTextAlign(fDC, TA_LEFT | TA_BASELINE); 44999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SelectObject(fDC, fFont); 45097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com 45197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com COLORREF color = 0x00FFFFFF; 452b58a639b2fbe919489654bb506efdb024a308a8ebsalomon@google.com SkDEBUGCODE(COLORREF prev =) SetTextColor(fDC, color); 45397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com SkASSERT(prev != CLR_INVALID); 45499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 45599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 45699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (fBM && (fIsBW != isBW || fWidth < glyph.fWidth || fHeight < glyph.fHeight)) { 45799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com DeleteObject(fBM); 45899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fBM = 0; 45999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 460754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com fIsBW = isBW; 46199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 46299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fWidth = SkMax32(fWidth, glyph.fWidth); 46399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fHeight = SkMax32(fHeight, glyph.fHeight); 46499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 46599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com int biWidth = isBW ? alignTo32(fWidth) : fWidth; 46699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 46799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (0 == fBM) { 46899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com MyBitmapInfo info; 46999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com sk_bzero(&info, sizeof(info)); 47099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (isBW) { 47199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com RGBQUAD blackQuad = { 0, 0, 0, 0 }; 47299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com RGBQUAD whiteQuad = { 0xFF, 0xFF, 0xFF, 0 }; 47399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiColors[0] = blackQuad; 47499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiColors[1] = whiteQuad; 47599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 47699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biSize = sizeof(info.bmiHeader); 47799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biWidth = biWidth; 47899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biHeight = fHeight; 47999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biPlanes = 1; 48099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biBitCount = isBW ? 1 : 32; 48199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biCompression = BI_RGB; 48299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (isBW) { 48399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biClrUsed = 2; 48499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 48599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fBM = CreateDIBSection(fDC, &info, DIB_RGB_COLORS, &fBits, 0, 0); 48699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (0 == fBM) { 48799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com return NULL; 48899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 48999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SelectObject(fDC, fBM); 49099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 49199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 49299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com // erase 49399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com size_t srcRB = isBW ? (biWidth >> 3) : (fWidth << 2); 49499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com size_t size = fHeight * srcRB; 49597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com memset(fBits, 0, size); 49699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 49799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com XFORM xform = fXform; 49899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com xform.eDx = (float)-glyph.fLeft; 49999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com xform.eDy = (float)-glyph.fTop; 50099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SetWorldTransform(fDC, &xform); 50199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 50299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com uint16_t glyphID = glyph.getGlyphID(); 50339698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com BOOL ret = ExtTextOutW(fDC, 0, 0, ETO_GLYPH_INDEX, NULL, reinterpret_cast<LPCWSTR>(&glyphID), 1, NULL); 50499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com GdiFlush(); 50539698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (0 == ret) { 50639698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com return NULL; 50739698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 50899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com *srcRBPtr = srcRB; 50999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com // offset to the start of the image 51099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com return (const char*)fBits + (fHeight - glyph.fHeight) * srcRB; 51199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com} 51299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 513b8a5c618d2e18d71707ae4dcafbe5153d7ff427freed@google.com////////////////////////////////////////////////////////////////////////////// 51459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 515ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comclass SkScalerContext_Windows : public SkScalerContext { 516ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.compublic: 5170da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.com SkScalerContext_Windows(SkTypeface*, const SkDescriptor* desc); 518ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com virtual ~SkScalerContext_Windows(); 519ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 520ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comprotected: 52197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com virtual unsigned generateGlyphCount() SK_OVERRIDE; 52297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com virtual uint16_t generateCharToGlyph(SkUnichar uni) SK_OVERRIDE; 52397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com virtual void generateAdvance(SkGlyph* glyph) SK_OVERRIDE; 52497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com virtual void generateMetrics(SkGlyph* glyph) SK_OVERRIDE; 525a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com virtual void generateImage(const SkGlyph& glyph) SK_OVERRIDE; 52697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com virtual void generatePath(const SkGlyph& glyph, SkPath* path) SK_OVERRIDE; 527a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com virtual void generateFontMetrics(SkPaint::FontMetrics* mX, 528a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com SkPaint::FontMetrics* mY) SK_OVERRIDE; 52999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 530ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comprivate: 53199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HDCOffscreen fOffscreen; 5325aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org SkScalar fScale; // to get from canonical size to real size 533ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com MAT2 fMat22; 534ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HDC fDDC; 535ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT fSavefont; 536ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT fFont; 537ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SCRIPT_CACHE fSC; 538ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int fGlyphCount; 5391dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 5401dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com HFONT fHiResFont; 5411dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com MAT2 fMat22Identity; 5421dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com SkMatrix fHiResMatrix; 543a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com enum Type { 544a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com kTrueType_Type, kBitmap_Type, 545a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } fType; 546a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com TEXTMETRIC fTM; 547ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com}; 548ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 549ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic float mul2float(SkScalar a, SkScalar b) { 550ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkScalarToFloat(SkScalarMul(a, b)); 551ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 552ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 553ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic FIXED float2FIXED(float x) { 554ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkFixedToFIXED(SkFloatToFixed(x)); 555ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 556ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 5571771cbf43d9a1334e3d870c635b4215bb888dd98digit@google.comSK_DECLARE_STATIC_MUTEX(gFTMutex); 55859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 5591dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com#define HIRES_TEXTSIZE 2048 5601dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com#define HIRES_SHIFT 11 5611dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.comstatic inline SkFixed HiResToFixed(int value) { 5621dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com return value << (16 - HIRES_SHIFT); 5631dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com} 5641dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 5651dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.comstatic bool needHiResMetrics(const SkScalar mat[2][2]) { 5661dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com return mat[1][0] || mat[0][1]; 5671dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com} 5681dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 56982a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.comstatic BYTE compute_quality(const SkScalerContext::Rec& rec) { 57082a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com switch (rec.fMaskFormat) { 57182a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com case SkMask::kBW_Format: 57282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com return NONANTIALIASED_QUALITY; 57382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com case SkMask::kLCD16_Format: 57482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com case SkMask::kLCD32_Format: 57582a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com return CLEARTYPE_QUALITY; 57682a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com default: 5778351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com if (rec.fFlags & SkScalerContext::kGenA8FromLCD_Flag) { 5788351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com return CLEARTYPE_QUALITY; 5798351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com } else { 5808351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com return ANTIALIASED_QUALITY; 5818351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com } 58282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com } 58382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com} 58482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 585055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.comSkScalerContext_Windows::SkScalerContext_Windows(SkTypeface* rawTypeface, 5860da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.com const SkDescriptor* desc) 587055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com : SkScalerContext(rawTypeface, desc) 588055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com , fDDC(0) 589055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com , fFont(0) 590055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com , fSavefont(0) 591055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com , fSC(0) 592ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com , fGlyphCount(-1) { 593ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkAutoMutexAcquire ac(gFTMutex); 594ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 595055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com LogFontTypeface* typeface = reinterpret_cast<LogFontTypeface*>(rawTypeface); 596055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com 597ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fDDC = ::CreateCompatibleDC(NULL); 5981dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com SetGraphicsMode(fDDC, GM_ADVANCED); 599ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SetBkMode(fDDC, TRANSPARENT); 600ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 601ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Scaling by the DPI is inconsistent with how Skia draws elsewhere 602ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com //SkScalar height = -(fRec.fTextSize * GetDeviceCaps(ddc, LOGPIXELSY) / 72); 603055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com LOGFONT lf = typeface->fLogFont; 604ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com lf.lfHeight = -gCanonicalTextSize; 60582a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com lf.lfQuality = compute_quality(fRec); 606ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fFont = CreateFontIndirect(&lf); 6071dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 6081dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com // if we're rotated, or want fractional widths, create a hires font 6091dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com fHiResFont = 0; 610c84547a8d3cb04f0547db282b34e26abfbe64ec3bungeman@google.com if (needHiResMetrics(fRec.fPost2x2)) { 6111dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com lf.lfHeight = -HIRES_TEXTSIZE; 6121dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com fHiResFont = CreateFontIndirect(&lf); 6131dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 6141dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com fMat22Identity.eM11 = fMat22Identity.eM22 = SkFixedToFIXED(SK_Fixed1); 6151dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com fMat22Identity.eM12 = fMat22Identity.eM21 = SkFixedToFIXED(0); 6161dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 6171dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com // construct a matrix to go from HIRES logical units to our device units 6181dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com fRec.getSingleMatrix(&fHiResMatrix); 6191dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com SkScalar scale = SkScalarInvert(SkIntToScalar(HIRES_TEXTSIZE)); 6201dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com fHiResMatrix.preScale(scale, scale); 6211dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com } 622ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fSavefont = (HFONT)SelectObject(fDDC, fFont); 623a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 624a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (0 == GetTextMetrics(fDDC, &fTM)) { 625055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com call_ensure_accessible(lf); 626a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (0 == GetTextMetrics(fDDC, &fTM)) { 627a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fTM.tmPitchAndFamily = TMPF_TRUETYPE; 628a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 629a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 630a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com // Used a logfont on a memory context, should never get a device font. 63190b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com // Therefore all TMPF_DEVICE will be PostScript fonts. 63290b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com 63390b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com // If TMPF_VECTOR is set, one of TMPF_TRUETYPE or TMPF_DEVICE must be set, 63490b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com // otherwise we have a vector FON, which we don't support. 63590b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com // This was determined by testing with Type1 PFM/PFB and OpenTypeCFF OTF, 63690b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com // as well as looking at Wine bugs and sources. 63790b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com SkASSERT(!(fTM.tmPitchAndFamily & TMPF_VECTOR) || 63890b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com (fTM.tmPitchAndFamily & (TMPF_TRUETYPE | TMPF_DEVICE))); 63990b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com 640d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com XFORM xform; 64190b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com if (fTM.tmPitchAndFamily & TMPF_VECTOR) { 642a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com // Truetype or PostScript. 643a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com // Stroked FON also gets here (TMPF_VECTOR), but we don't handle it. 644a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fType = SkScalerContext_Windows::kTrueType_Type; 645a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fScale = fRec.fTextSize / gCanonicalTextSize; 646a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 647d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // fPost2x2 is column-major, left handed (y down). 648d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // XFORM 2x2 is row-major, left handed (y down). 649d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM11 = mul2float(fScale, fRec.fPost2x2[0][0]); 650d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM12 = mul2float(fScale, fRec.fPost2x2[1][0]); 651d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM21 = mul2float(fScale, fRec.fPost2x2[0][1]); 652d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM22 = mul2float(fScale, fRec.fPost2x2[1][1]); 653d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eDx = 0; 654d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eDy = 0; 655d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com 656d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // MAT2 is row major, right handed (y up). 657d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM11 = float2FIXED(xform.eM11); 658d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM12 = float2FIXED(-xform.eM12); 659d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM21 = float2FIXED(-xform.eM21); 660d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM22 = float2FIXED(xform.eM22); 661a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 662a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (needToRenderWithSkia(fRec)) { 663a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com this->forceGenerateImageFromPath(); 664a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 665a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 666a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } else { 667a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com // Assume bitmap 668a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fType = SkScalerContext_Windows::kBitmap_Type; 669a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fScale = SK_Scalar1; 670a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 671d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM11 = 1.0f; 672d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM12 = 0.0f; 673d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM21 = 0.0f; 674d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM22 = 1.0f; 675d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eDx = 0.0f; 676d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eDy = 0.0f; 677a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 678d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // fPost2x2 is column-major, left handed (y down). 679d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // MAT2 is row major, right handed (y up). 680a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fMat22.eM11 = SkScalarToFIXED(fRec.fPost2x2[0][0]); 681d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM12 = SkScalarToFIXED(-fRec.fPost2x2[1][0]); 682a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fMat22.eM21 = SkScalarToFIXED(-fRec.fPost2x2[0][1]); 683d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM22 = SkScalarToFIXED(fRec.fPost2x2[1][1]); 684a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 685a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com lf.lfHeight = -SkScalarCeilToInt(fRec.fTextSize); 686a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com HFONT bitmapFont = CreateFontIndirect(&lf); 687a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com SelectObject(fDDC, bitmapFont); 688a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com ::DeleteObject(fFont); 689a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fFont = bitmapFont; 690a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 691a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (0 == GetTextMetrics(fDDC, &fTM)) { 692055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com call_ensure_accessible(lf); 693a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com //if the following fails, we'll just draw at gCanonicalTextSize. 694a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com GetTextMetrics(fDDC, &fTM); 695a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 696a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com } 69799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 698d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fOffscreen.init(fFont, xform); 699ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 700ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 701ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comSkScalerContext_Windows::~SkScalerContext_Windows() { 702ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fDDC) { 703ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::SelectObject(fDDC, fSavefont); 704ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::DeleteDC(fDDC); 705ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 706ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fFont) { 707ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::DeleteObject(fFont); 708ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 7091dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com if (fHiResFont) { 7101dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com ::DeleteObject(fHiResFont); 7111dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com } 712ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fSC) { 713ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::ScriptFreeCache(&fSC); 714ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 715ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 716ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 717ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comunsigned SkScalerContext_Windows::generateGlyphCount() { 718ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fGlyphCount < 0) { 719a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (fType == SkScalerContext_Windows::kBitmap_Type) { 720a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com return fTM.tmLastChar; 721a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 722a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fGlyphCount = calculateOutlineGlyphCount(fDDC); 723ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 724ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return fGlyphCount; 725ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 726ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 727ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comuint16_t SkScalerContext_Windows::generateCharToGlyph(SkUnichar uni) { 728ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com uint16_t index = 0; 729ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com WCHAR c[2]; 730ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // TODO(ctguil): Support characters that generate more than one glyph. 731ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (SkUTF16_FromUnichar(uni, (uint16_t*)c) == 1) { 732ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Type1 fonts fail with uniscribe API. Use GetGlyphIndices for plane 0. 733ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkAssertResult(GetGlyphIndicesW(fDDC, c, 1, &index, 0)); 734ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 735ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Use uniscribe to detemine glyph index for non-BMP characters. 736ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Need to add extra item to SCRIPT_ITEM to work around a bug in older 737ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // windows versions. https://bugzilla.mozilla.org/show_bug.cgi?id=366643 738ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SCRIPT_ITEM si[2 + 1]; 739ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int items; 740ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkAssertResult( 741ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SUCCEEDED(ScriptItemize(c, 2, 2, NULL, NULL, si, &items))); 742ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 743ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com WORD log[2]; 744ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SCRIPT_VISATTR vsa; 745ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int glyphs; 746ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkAssertResult(SUCCEEDED(ScriptShape( 747ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fDDC, &fSC, c, 2, 1, &si[0].a, &index, log, &vsa, &glyphs))); 748ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 749ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return index; 750ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 751ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 752ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comvoid SkScalerContext_Windows::generateAdvance(SkGlyph* glyph) { 753ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com this->generateMetrics(glyph); 754ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 755ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 756ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comvoid SkScalerContext_Windows::generateMetrics(SkGlyph* glyph) { 757ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(fDDC); 758ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 759a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (fType == SkScalerContext_Windows::kBitmap_Type) { 760a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com SIZE size; 761a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com WORD glyphs = glyph->getGlyphID(0); 762a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (0 == GetTextExtentPointI(fDDC, &glyphs, 1, &size)) { 763a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fWidth = SkToS16(fTM.tmMaxCharWidth); 764a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } else { 765a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fWidth = SkToS16(size.cx); 766a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 767a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fHeight = SkToS16(size.cy); 768a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 769a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fTop = SkToS16(-fTM.tmAscent); 770a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fLeft = SkToS16(0); 771a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fAdvanceX = SkIntToFixed(glyph->fWidth); 772a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fAdvanceY = 0; 773a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 774d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // Apply matrix to advance. 775a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fAdvanceY = SkFixedMul(SkFIXEDToFixed(fMat22.eM21), glyph->fAdvanceX); 776a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fAdvanceX = SkFixedMul(SkFIXEDToFixed(fMat22.eM11), glyph->fAdvanceX); 777a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 778a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com return; 779a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 780a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 781d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com UINT glyphId = glyph->getGlyphID(0); 782d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com 783ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com GLYPHMETRICS gm; 7841dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com sk_bzero(&gm, sizeof(gm)); 785ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 786d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com DWORD status = GetGlyphOutlineW(fDDC, glyphId, GGO_METRICS | GGO_GLYPH_INDEX, &gm, 0, NULL, &fMat22); 787d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (GDI_ERROR == status) { 788055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com LogFontTypeface::EnsureAccessible(this->getTypeface()); 789d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com status = GetGlyphOutlineW(fDDC, glyphId, GGO_METRICS | GGO_GLYPH_INDEX, &gm, 0, NULL, &fMat22); 790d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (GDI_ERROR == status) { 791d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->zeroMetrics(); 792d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com return; 793d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 79439698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 795ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 796d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com bool empty = false; 797d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // The black box is either the embedded bitmap size or the outline extent. 798d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // It is 1x1 if nothing is to be drawn, but will also be 1x1 if something very small 799d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // is to be drawn, like a '.'. We need to outset '.' but do not wish to outset ' '. 800d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (1 == gm.gmBlackBoxX && 1 == gm.gmBlackBoxY) { 801d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // If GetGlyphOutline with GGO_NATIVE returns 0, we know there was no outline. 802d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com DWORD bufferSize = GetGlyphOutlineW(fDDC, glyphId, GGO_NATIVE | GGO_GLYPH_INDEX, &gm, 0, NULL, &fMat22); 803d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com empty = (0 == bufferSize); 804d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 8051dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 806d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fTop = SkToS16(-gm.gmptGlyphOrigin.y); 807d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fLeft = SkToS16(gm.gmptGlyphOrigin.x); 808d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (empty) { 809d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fWidth = 0; 810d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fHeight = 0; 811ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 812d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // Outset, since the image may bleed out of the black box. 813d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // For embedded bitmaps the black box should be exact. 814d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // For outlines we need to outset by 1 in all directions for bleed. 815d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // For ClearType we need to outset by 2 for bleed. 816d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fWidth = gm.gmBlackBoxX + 4; 817d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fHeight = gm.gmBlackBoxY + 4; 818d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fTop -= 2; 819d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fLeft -= 2; 820d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 821d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fAdvanceX = SkIntToFixed(gm.gmCellIncX); 822d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fAdvanceY = SkIntToFixed(gm.gmCellIncY); 823d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fRsbDelta = 0; 824d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fLsbDelta = 0; 825d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com 826d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (fHiResFont) { 827d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SelectObject(fDDC, fHiResFont); 828d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com sk_bzero(&gm, sizeof(gm)); 829d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com status = GetGlyphOutlineW(fDDC, glyphId, GGO_METRICS | GGO_GLYPH_INDEX, &gm, 0, NULL, &fMat22Identity); 830d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (GDI_ERROR != status) { 831d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkPoint advance; 832d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fHiResMatrix.mapXY(SkIntToScalar(gm.gmCellIncX), SkIntToScalar(gm.gmCellIncY), &advance); 833d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fAdvanceX = SkScalarToFixed(advance.fX); 834d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fAdvanceY = SkScalarToFixed(advance.fY); 835d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 836d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SelectObject(fDDC, fFont); 837ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 838ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 839ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 840ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comvoid SkScalerContext_Windows::generateFontMetrics(SkPaint::FontMetrics* mx, SkPaint::FontMetrics* my) { 84160af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com if (!(mx || my)) { 842ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return; 84360af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com } 84460af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com 84560af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com if (mx) { 84660af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com sk_bzero(mx, sizeof(*mx)); 84760af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com } 84860af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com if (my) { 84960af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com sk_bzero(my, sizeof(*my)); 85060af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com } 851ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 852ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(fDDC); 853ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 854a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (fType == SkScalerContext_Windows::kBitmap_Type) { 855a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (mx) { 856a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com mx->fTop = SkIntToScalar(-fTM.tmAscent); 857a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com mx->fAscent = SkIntToScalar(-fTM.tmAscent); 858a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com mx->fDescent = -SkIntToScalar(fTM.tmDescent); 859a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com mx->fBottom = SkIntToScalar(fTM.tmDescent); 86060af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com mx->fLeading = SkIntToScalar(fTM.tmExternalLeading); 861a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 862a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 863a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (my) { 864a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com my->fTop = SkIntToScalar(-fTM.tmAscent); 865a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com my->fAscent = SkIntToScalar(-fTM.tmAscent); 866a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com my->fDescent = SkIntToScalar(-fTM.tmDescent); 867a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com my->fBottom = SkIntToScalar(fTM.tmDescent); 86860af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com my->fLeading = SkIntToScalar(fTM.tmExternalLeading); 86960af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com my->fAvgCharWidth = SkIntToScalar(fTM.tmAveCharWidth); 870a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 871a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com return; 872a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 873a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 874ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com OUTLINETEXTMETRIC otm; 875ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 876ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com uint32_t ret = GetOutlineTextMetrics(fDDC, sizeof(otm), &otm); 87739698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (GDI_ERROR == ret) { 878055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com LogFontTypeface::EnsureAccessible(this->getTypeface()); 87939698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com ret = GetOutlineTextMetrics(fDDC, sizeof(otm), &otm); 88039698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 881ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (sizeof(otm) != ret) { 882a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com return; 883ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 884ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 885ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (mx) { 88660af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com mx->fTop = -fScale * otm.otmrcFontBox.left; 8875aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org mx->fAscent = -fScale * otm.otmAscent; 8885aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org mx->fDescent = -fScale * otm.otmDescent; 88960af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com mx->fBottom = fScale * otm.otmrcFontBox.right; 89060af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com mx->fLeading = fScale * otm.otmLineGap; 891ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 892ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 893ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (my) { 89460af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com my->fTop = -fScale * otm.otmrcFontBox.top; 8955aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org my->fAscent = -fScale * otm.otmAscent; 8965aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org my->fDescent = -fScale * otm.otmDescent; 89794b366a3e8ed7f03b4417f45999572399e6e591creed@google.com my->fBottom = -fScale * otm.otmrcFontBox.bottom; 89860af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com my->fLeading = fScale * otm.otmLineGap; 89960af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com my->fAvgCharWidth = fScale * otm.otmTextMetrics.tmAveCharWidth; 90060af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com my->fXHeight = fScale * otm.otmsXHeight; 901ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 902ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 903ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 9047430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com//////////////////////////////////////////////////////////////////////////////////////// 9057430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com 9067430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.comstatic void build_power_table(uint8_t table[], float ee) { 9077430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com for (int i = 0; i < 256; i++) { 9087430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com float x = i / 255.f; 90997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com x = sk_float_pow(x, ee); 9107430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com int xx = SkScalarRound(SkFloatToScalar(x * 255)); 9117430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com table[i] = SkToU8(xx); 9127430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com } 9137430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com} 9147430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com 91597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com/** 91697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * This will invert the gamma applied by GDI (gray-scale antialiased), so we 91797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * can get linear values. 91897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * 91997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * GDI grayscale appears to use a hard-coded gamma of 2.3. 92097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * 92197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * GDI grayscale appears to draw using the black and white rasterizer at four 92297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * times the size and then downsamples to compute the coverage mask. As a 92397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * result there are only seventeen total grays. This lack of fidelity means 92497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * that shifting into other color spaces is imprecise. 92597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com */ 92697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic const uint8_t* getInverseGammaTableGDI() { 92797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com static bool gInited; 92897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com static uint8_t gTableGdi[256]; 92997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com if (!gInited) { 93097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com build_power_table(gTableGdi, 2.3f); 93197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com gInited = true; 93297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } 93397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com return gTableGdi; 93497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com} 93597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com 93697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com/** 93797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * This will invert the gamma applied by GDI ClearType, so we can get linear 93897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * values. 93997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * 94097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * GDI ClearType uses SPI_GETFONTSMOOTHINGCONTRAST / 1000 as the gamma value. 94197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * If this value is not specified, the default is a gamma of 1.4. 94297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com */ 94397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic const uint8_t* getInverseGammaTableClearType() { 9447430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com static bool gInited; 94597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com static uint8_t gTableClearType[256]; 9467430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com if (!gInited) { 9477430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com UINT level = 0; 9487430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com if (!SystemParametersInfo(SPI_GETFONTSMOOTHINGCONTRAST, 0, &level, 0) || !level) { 9497430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com // can't get the data, so use a default 9507430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com level = 1400; 9517430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com } 95297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com build_power_table(gTableClearType, level / 1000.0f); 9537430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com gInited = true; 9547430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com } 95597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com return gTableClearType; 9567430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com} 9577430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com 958ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkColorPriv.h" 959ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 9606385314686875ecb484d95b33fcbf08890b5144dbungeman@google.com//Cannot assume that the input rgb is gray due to possible setting of kGenA8FromLCD_Flag. 96197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 96297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic inline uint8_t rgb_to_a8(SkGdiRGB rgb, const uint8_t* table8) { 9636385314686875ecb484d95b33fcbf08890b5144dbungeman@google.com U8CPU r = (rgb >> 16) & 0xFF; 9646385314686875ecb484d95b33fcbf08890b5144dbungeman@google.com U8CPU g = (rgb >> 8) & 0xFF; 9656385314686875ecb484d95b33fcbf08890b5144dbungeman@google.com U8CPU b = (rgb >> 0) & 0xFF; 9661bfe01d06b896eca94c80d9af9a6bb30216b5e42bungeman@google.com return sk_apply_lut_if<APPLY_PREBLEND>(SkComputeLuminance(r, g, b), table8); 96782a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com} 96882a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 96997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 97097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic inline uint16_t rgb_to_lcd16(SkGdiRGB rgb, const uint8_t* tableR, 97197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableG, 97297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableB) { 97397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU r = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 16) & 0xFF, tableR); 97497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU g = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 8) & 0xFF, tableG); 97597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU b = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 0) & 0xFF, tableB); 97697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com return SkPack888ToRGB16(r, g, b); 977ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 978ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 97997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 98097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic inline SkPMColor rgb_to_lcd32(SkGdiRGB rgb, const uint8_t* tableR, 98197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableG, 98297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableB) { 98397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU r = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 16) & 0xFF, tableR); 98497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU g = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 8) & 0xFF, tableG); 98597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU b = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 0) & 0xFF, tableB); 98697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com return SkPackARGB32(0xFF, r, g, b); 987754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com} 988754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com 98982cff020b7e055f2d01686f060a884df842306edreed@google.com// Is this GDI color neither black nor white? If so, we have to keep this 99082cff020b7e055f2d01686f060a884df842306edreed@google.com// image as is, rather than smashing it down to a BW mask. 99182cff020b7e055f2d01686f060a884df842306edreed@google.com// 99282cff020b7e055f2d01686f060a884df842306edreed@google.com// returns int instead of bool, since we don't want/have to pay to convert 99382cff020b7e055f2d01686f060a884df842306edreed@google.com// the zero/non-zero value into a bool 99482cff020b7e055f2d01686f060a884df842306edreed@google.comstatic int is_not_black_or_white(SkGdiRGB c) { 99582cff020b7e055f2d01686f060a884df842306edreed@google.com // same as (but faster than) 99682cff020b7e055f2d01686f060a884df842306edreed@google.com // c &= 0x00FFFFFF; 99782cff020b7e055f2d01686f060a884df842306edreed@google.com // return 0 == c || 0x00FFFFFF == c; 99882cff020b7e055f2d01686f060a884df842306edreed@google.com return (c + (c & 1)) & 0x00FFFFFF; 9995e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 10005e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 10015e2df64215f12660ab26b96816f40ad8e32bf16freed@google.comstatic bool is_rgb_really_bw(const SkGdiRGB* src, int width, int height, int srcRB) { 10025e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int y = 0; y < height; ++y) { 10035e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int x = 0; x < width; ++x) { 100482cff020b7e055f2d01686f060a884df842306edreed@google.com if (is_not_black_or_white(src[x])) { 10055e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com return false; 10065e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 10075e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 10086f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com src = SkTAddByteOffset(src, srcRB); 10095e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 10105e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com return true; 10115e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 10125e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 101397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com// gdi's bitmap is upside-down, so we reverse dst walking in Y 101497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com// whenever we copy it into skia's buffer 10155e2df64215f12660ab26b96816f40ad8e32bf16freed@google.comstatic void rgb_to_bw(const SkGdiRGB* SK_RESTRICT src, size_t srcRB, 101697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const SkGlyph& glyph) { 10175e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const int width = glyph.fWidth; 10185e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const size_t dstRB = (width + 7) >> 3; 10195e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com uint8_t* SK_RESTRICT dst = (uint8_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 10205e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 10215e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com int byteCount = width >> 3; 10225e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com int bitCount = width & 7; 10235e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 10245e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com // adjust srcRB to skip the values in our byteCount loop, 10255e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com // since we increment src locally there 10265e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com srcRB -= byteCount * 8 * sizeof(SkGdiRGB); 10275e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 10285e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int y = 0; y < glyph.fHeight; ++y) { 10295e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com if (byteCount > 0) { 10305e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int i = 0; i < byteCount; ++i) { 10317a230142e01c5a8cf955be12a5f287589b551634reed@google.com unsigned byte = 0; 103297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[0] & (1 << 7); 103397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[1] & (1 << 6); 103497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[2] & (1 << 5); 103597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[3] & (1 << 4); 103697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[4] & (1 << 3); 103797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[5] & (1 << 2); 103897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[6] & (1 << 1); 103997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[7] & (1 << 0); 10406a8f14d9633b330fb8051581828a0aaf4403d1a9reed@google.com dst[i] = byte; 10415e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com src += 8; 10425e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 10435e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 10445e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com if (bitCount > 0) { 10455e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com unsigned byte = 0; 10465e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com unsigned mask = 0x80; 10475e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int i = 0; i < bitCount; i++) { 104897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[i] & mask; 10495e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com mask >>= 1; 10505e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 10515e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com dst[byteCount] = byte; 10525e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 10536f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com src = SkTAddByteOffset(src, srcRB); 10545e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com dst -= dstRB; 10555e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 10565e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 10575e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 105897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 10595e2df64215f12660ab26b96816f40ad8e32bf16freed@google.comstatic void rgb_to_a8(const SkGdiRGB* SK_RESTRICT src, size_t srcRB, 106097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const SkGlyph& glyph, const uint8_t* table8) { 10615e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const size_t dstRB = glyph.rowBytes(); 10625e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const int width = glyph.fWidth; 10635e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com uint8_t* SK_RESTRICT dst = (uint8_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 10645e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 10655e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int y = 0; y < glyph.fHeight; y++) { 10665e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int i = 0; i < width; i++) { 106797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com dst[i] = rgb_to_a8<APPLY_PREBLEND>(src[i], table8); 10685e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 10696f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com src = SkTAddByteOffset(src, srcRB); 10705e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com dst -= dstRB; 10715e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 10725e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 10735e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 107497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 107597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic void rgb_to_lcd16(const SkGdiRGB* SK_RESTRICT src, size_t srcRB, const SkGlyph& glyph, 107697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableR, const uint8_t* tableG, const uint8_t* tableB) { 10775e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const size_t dstRB = glyph.rowBytes(); 10785e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const int width = glyph.fWidth; 10795e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com uint16_t* SK_RESTRICT dst = (uint16_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 10805e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 10815e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int y = 0; y < glyph.fHeight; y++) { 10825e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int i = 0; i < width; i++) { 108397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com dst[i] = rgb_to_lcd16<APPLY_PREBLEND>(src[i], tableR, tableG, tableB); 10845e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 10856f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com src = SkTAddByteOffset(src, srcRB); 10865e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com dst = (uint16_t*)((char*)dst - dstRB); 10875e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 10885e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 10895e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 109097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 109197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic void rgb_to_lcd32(const SkGdiRGB* SK_RESTRICT src, size_t srcRB, const SkGlyph& glyph, 109297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableR, const uint8_t* tableG, const uint8_t* tableB) { 1093754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com const size_t dstRB = glyph.rowBytes(); 1094754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com const int width = glyph.fWidth; 109597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com uint32_t* SK_RESTRICT dst = (uint32_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 1096754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com 1097754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com for (int y = 0; y < glyph.fHeight; y++) { 1098754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com for (int i = 0; i < width; i++) { 109997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com dst[i] = rgb_to_lcd32<APPLY_PREBLEND>(src[i], tableR, tableG, tableB); 1100754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } 11016f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com src = SkTAddByteOffset(src, srcRB); 110297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com dst = (uint32_t*)((char*)dst - dstRB); 1103754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } 1104754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com} 1105754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com 11066f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.comstatic inline unsigned clamp255(unsigned x) { 11076f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com SkASSERT(x <= 256); 11086f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com return x - (x >> 8); 11096f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com} 11106f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com 1111a76de72a6036da0a6b051b14411b80941971f881bungeman@google.comvoid SkScalerContext_Windows::generateImage(const SkGlyph& glyph) { 111297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com SkAutoMutexAcquire ac(gFTMutex); 1113ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(fDDC); 1114ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 11156271117d826098c1399cf7442f8eea2d665cb78areed@google.com const bool isBW = SkMask::kBW_Format == fRec.fMaskFormat; 111682a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com const bool isAA = !isLCD(fRec); 111782a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 111899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com size_t srcRB; 111997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const void* bits = fOffscreen.draw(glyph, isBW, &srcRB); 112039698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (NULL == bits) { 1121055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com LogFontTypeface::EnsureAccessible(this->getTypeface()); 112297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com bits = fOffscreen.draw(glyph, isBW, &srcRB); 112339698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (NULL == bits) { 112439698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com sk_bzero(glyph.fImage, glyph.computeImageSize()); 112539698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com return; 112639698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 112782a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com } 112882a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 112997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com if (!isBW) { 11301bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com const uint8_t* table; 11311bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com //The offscreen contains a GDI blit if isAA and kGenA8FromLCD_Flag is not set. 11321bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com //Otherwise the offscreen contains a ClearType blit. 11331bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com if (isAA && !(fRec.fFlags & SkScalerContext::kGenA8FromLCD_Flag)) { 11341bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com table = getInverseGammaTableGDI(); 11351bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com } else { 11361bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com table = getInverseGammaTableClearType(); 113797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } 113897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //Note that the following cannot really be integrated into the 113997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //pre-blend, since we may not be applying the pre-blend; when we aren't 114097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //applying the pre-blend it means that a filter wants linear anyway. 114197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //Other code may also be applying the pre-blend, so we'd need another 114297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //one with this and one without. 11436f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com SkGdiRGB* addr = (SkGdiRGB*)bits; 11446f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com for (int y = 0; y < glyph.fHeight; ++y) { 11456f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com for (int x = 0; x < glyph.fWidth; ++x) { 11466f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com int r = (addr[x] >> 16) & 0xFF; 11476f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com int g = (addr[x] >> 8) & 0xFF; 11486f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com int b = (addr[x] >> 0) & 0xFF; 11497430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com addr[x] = (table[r] << 16) | (table[g] << 8) | table[b]; 11506f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com } 11516f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com addr = SkTAddByteOffset(addr, srcRB); 11526f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com } 11536f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com } 11546f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com 115582a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com int width = glyph.fWidth; 115682a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com size_t dstRB = glyph.rowBytes(); 115782a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com if (isBW) { 115882a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com const uint8_t* src = (const uint8_t*)bits; 115982a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com uint8_t* dst = (uint8_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 116082a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com for (int y = 0; y < glyph.fHeight; y++) { 116182a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com memcpy(dst, src, dstRB); 116282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com src += srcRB; 116382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com dst -= dstRB; 1164ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 116582a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com } else if (isAA) { 11666f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com // since the caller may require A8 for maskfilters, we can't check for BW 11676f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com // ... until we have the caller tell us that explicitly 11685e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const SkGdiRGB* src = (const SkGdiRGB*)bits; 1169a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com if (fPreBlend.isApplicable()) { 1170a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com rgb_to_a8<true>(src, srcRB, glyph, fPreBlend.fG); 117197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } else { 1172a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com rgb_to_a8<false>(src, srcRB, glyph, fPreBlend.fG); 117397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } 117482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com } else { // LCD16 11755e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const SkGdiRGB* src = (const SkGdiRGB*)bits; 11765e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com if (is_rgb_really_bw(src, width, glyph.fHeight, srcRB)) { 117797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com rgb_to_bw(src, srcRB, glyph); 11785e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com ((SkGlyph*)&glyph)->fMaskFormat = SkMask::kBW_Format; 11795e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } else { 1180754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com if (SkMask::kLCD16_Format == glyph.fMaskFormat) { 1181a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com if (fPreBlend.isApplicable()) { 1182a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com rgb_to_lcd16<true>(src, srcRB, glyph, 1183a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com fPreBlend.fR, fPreBlend.fG, fPreBlend.fB); 118497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } else { 1185a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com rgb_to_lcd16<false>(src, srcRB, glyph, 1186a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com fPreBlend.fR, fPreBlend.fG, fPreBlend.fB); 118797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } 1188754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } else { 1189754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com SkASSERT(SkMask::kLCD32_Format == glyph.fMaskFormat); 1190a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com if (fPreBlend.isApplicable()) { 1191a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com rgb_to_lcd32<true>(src, srcRB, glyph, 1192a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com fPreBlend.fR, fPreBlend.fG, fPreBlend.fB); 119397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } else { 1194a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com rgb_to_lcd32<false>(src, srcRB, glyph, 1195a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com fPreBlend.fR, fPreBlend.fG, fPreBlend.fB); 119697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } 1197754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } 1198ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1199ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1200ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1201ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1202ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comvoid SkScalerContext_Windows::generatePath(const SkGlyph& glyph, SkPath* path) { 1203ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1204d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkAutoMutexAcquire ac(gFTMutex); 1205ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1206ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(&glyph && path); 1207ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(fDDC); 1208ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1209ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com path->reset(); 1210ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1211ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com GLYPHMETRICS gm; 1212ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com uint32_t total_size = GetGlyphOutlineW(fDDC, glyph.fID, GGO_NATIVE | GGO_GLYPH_INDEX, &gm, BUFFERSIZE, glyphbuf, &fMat22); 121339698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (GDI_ERROR == total_size) { 1214055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com LogFontTypeface::EnsureAccessible(this->getTypeface()); 121539698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com total_size = GetGlyphOutlineW(fDDC, glyph.fID, GGO_NATIVE | GGO_GLYPH_INDEX, &gm, BUFFERSIZE, glyphbuf, &fMat22); 1216d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (GDI_ERROR == total_size) { 1217d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkASSERT(false); 1218d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com return; 1219d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 122039698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 1221ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1222d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const uint8_t* cur_glyph = glyphbuf; 1223d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const uint8_t* end_glyph = glyphbuf + total_size; 1224ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1225d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com while (cur_glyph < end_glyph) { 1226d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const TTPOLYGONHEADER* th = (TTPOLYGONHEADER*)cur_glyph; 1227ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1228d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const uint8_t* end_poly = cur_glyph + th->cb; 1229d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const uint8_t* cur_poly = cur_glyph + sizeof(TTPOLYGONHEADER); 1230ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1231d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com path->moveTo(SkFixedToScalar( SkFIXEDToFixed(th->pfxStart.x)), 1232d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(th->pfxStart.y))); 1233ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1234d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com while (cur_poly < end_poly) { 1235d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const TTPOLYCURVE* pc = (const TTPOLYCURVE*)cur_poly; 1236ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1237d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (pc->wType == TT_PRIM_LINE) { 1238d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com for (uint16_t i = 0; i < pc->cpfx; i++) { 1239d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com path->lineTo(SkFixedToScalar( SkFIXEDToFixed(pc->apfx[i].x)), 1240d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(pc->apfx[i].y))); 1241ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1242d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 1243ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1244d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (pc->wType == TT_PRIM_QSPLINE) { 1245d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com for (uint16_t u = 0; u < pc->cpfx - 1; u++) { // Walk through points in spline 1246d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com POINTFX pnt_b = pc->apfx[u]; // B is always the current point 1247d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com POINTFX pnt_c = pc->apfx[u+1]; 1248ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1249d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (u < pc->cpfx - 2) { // If not on last spline, compute C 1250d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com pnt_c.x = SkFixedToFIXED(SkFixedAve(SkFIXEDToFixed(pnt_b.x), 1251d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFIXEDToFixed(pnt_c.x))); 1252d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com pnt_c.y = SkFixedToFIXED(SkFixedAve(SkFIXEDToFixed(pnt_b.y), 1253d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFIXEDToFixed(pnt_c.y))); 1254ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1255d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com 1256d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com path->quadTo(SkFixedToScalar( SkFIXEDToFixed(pnt_b.x)), 1257d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(pnt_b.y)), 1258d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFixedToScalar( SkFIXEDToFixed(pnt_c.x)), 1259d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(pnt_c.y))); 1260ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1261ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1262d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // Advance past this TTPOLYCURVE. 1263d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com cur_poly += sizeof(WORD) * 2 + sizeof(POINTFX) * pc->cpfx; 1264ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1265d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com cur_glyph += th->cb; 1266d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com path->close(); 1267ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1268ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1269ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1270484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comstatic void logfont_for_name(const char* familyName, LOGFONT* lf) { 1271484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com sk_bzero(lf, sizeof(LOGFONT)); 1272e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com#ifdef UNICODE 1273484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com // Get the buffer size needed first. 1274484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com size_t str_len = ::MultiByteToWideChar(CP_UTF8, 0, familyName, 1275484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com -1, NULL, 0); 1276484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com // Allocate a buffer (str_len already has terminating null 1277484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com // accounted for). 1278484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com wchar_t *wideFamilyName = new wchar_t[str_len]; 1279484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com // Now actually convert the string. 1280484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ::MultiByteToWideChar(CP_UTF8, 0, familyName, -1, 1281484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com wideFamilyName, str_len); 1282484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ::wcsncpy(lf->lfFaceName, wideFamilyName, LF_FACESIZE - 1); 1283484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com delete [] wideFamilyName; 1284484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com lf->lfFaceName[LF_FACESIZE-1] = L'\0'; 1285e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com#else 1286484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ::strncpy(lf->lfFaceName, familyName, LF_FACESIZE - 1); 1287484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com lf->lfFaceName[LF_FACESIZE - 1] = '\0'; 1288e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com#endif 1289e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com} 1290e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com 12915526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.comvoid LogFontTypeface::onGetFontDescriptor(SkFontDescriptor* desc, 12925526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.com bool* isLocalStream) const { 12937103f182ce61280eacb35f1832df350b642a5381bungeman@google.com // Get the actual name of the typeface. The logfont may not know this. 12945526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.com HFONT font = CreateFontIndirect(&fLogFont); 12957103f182ce61280eacb35f1832df350b642a5381bungeman@google.com 12967103f182ce61280eacb35f1832df350b642a5381bungeman@google.com HDC deviceContext = ::CreateCompatibleDC(NULL); 12977103f182ce61280eacb35f1832df350b642a5381bungeman@google.com HFONT savefont = (HFONT)SelectObject(deviceContext, font); 12987103f182ce61280eacb35f1832df350b642a5381bungeman@google.com 12997103f182ce61280eacb35f1832df350b642a5381bungeman@google.com int fontNameLen; //length of fontName in TCHARS. 13007103f182ce61280eacb35f1832df350b642a5381bungeman@google.com if (0 == (fontNameLen = GetTextFace(deviceContext, 0, NULL))) { 13015526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.com call_ensure_accessible(fLogFont); 13027103f182ce61280eacb35f1832df350b642a5381bungeman@google.com if (0 == (fontNameLen = GetTextFace(deviceContext, 0, NULL))) { 13037103f182ce61280eacb35f1832df350b642a5381bungeman@google.com fontNameLen = 0; 13047103f182ce61280eacb35f1832df350b642a5381bungeman@google.com } 13057103f182ce61280eacb35f1832df350b642a5381bungeman@google.com } 13067103f182ce61280eacb35f1832df350b642a5381bungeman@google.com 13077103f182ce61280eacb35f1832df350b642a5381bungeman@google.com SkAutoSTArray<LF_FULLFACESIZE, TCHAR> fontName(fontNameLen+1); 13087103f182ce61280eacb35f1832df350b642a5381bungeman@google.com if (0 == GetTextFace(deviceContext, fontNameLen, fontName.get())) { 13095526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.com call_ensure_accessible(fLogFont); 13107103f182ce61280eacb35f1832df350b642a5381bungeman@google.com if (0 == GetTextFace(deviceContext, fontNameLen, fontName.get())) { 13117103f182ce61280eacb35f1832df350b642a5381bungeman@google.com fontName[0] = 0; 13127103f182ce61280eacb35f1832df350b642a5381bungeman@google.com } 13137103f182ce61280eacb35f1832df350b642a5381bungeman@google.com } 13147103f182ce61280eacb35f1832df350b642a5381bungeman@google.com 13157103f182ce61280eacb35f1832df350b642a5381bungeman@google.com if (deviceContext) { 13167103f182ce61280eacb35f1832df350b642a5381bungeman@google.com ::SelectObject(deviceContext, savefont); 13177103f182ce61280eacb35f1832df350b642a5381bungeman@google.com ::DeleteDC(deviceContext); 13187103f182ce61280eacb35f1832df350b642a5381bungeman@google.com } 13197103f182ce61280eacb35f1832df350b642a5381bungeman@google.com if (font) { 13207103f182ce61280eacb35f1832df350b642a5381bungeman@google.com ::DeleteObject(font); 13217103f182ce61280eacb35f1832df350b642a5381bungeman@google.com } 13227103f182ce61280eacb35f1832df350b642a5381bungeman@google.com 1323e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com SkString familyName; 13247103f182ce61280eacb35f1832df350b642a5381bungeman@google.com tchar_to_skstring(fontName.get(), &familyName); 1325e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com 13265526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.com desc->setFamilyName(familyName.c_str()); 13275526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.com *isLocalStream = this->fSerializeAsStream; 1328ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1329ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1330ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic bool getWidthAdvance(HDC hdc, int gId, int16_t* advance) { 1331ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Initialize the MAT2 structure to the identify transformation matrix. 1332ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com static const MAT2 mat2 = {SkScalarToFIXED(1), SkScalarToFIXED(0), 1333ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkScalarToFIXED(0), SkScalarToFIXED(1)}; 1334ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int flags = GGO_METRICS | GGO_GLYPH_INDEX; 1335ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com GLYPHMETRICS gm; 1336ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (GDI_ERROR == GetGlyphOutline(hdc, gId, flags, &gm, 0, NULL, &mat2)) { 1337ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return false; 1338ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1339ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(advance); 1340ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com *advance = gm.gmCellIncX; 1341ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return true; 1342ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1343ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 13442689f615e364dc48ad73826564f5b13d2329179dreed@google.comSkAdvancedTypefaceMetrics* LogFontTypeface::onGetAdvancedTypefaceMetrics( 134537ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org SkAdvancedTypefaceMetrics::PerGlyphInfo perGlyphInfo, 134637ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org const uint32_t* glyphIDs, 13472689f615e364dc48ad73826564f5b13d2329179dreed@google.com uint32_t glyphIDsCount) const { 13482689f615e364dc48ad73826564f5b13d2329179dreed@google.com LOGFONT lf = fLogFont; 1349ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkAdvancedTypefaceMetrics* info = NULL; 1350ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1351ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HDC hdc = CreateCompatibleDC(NULL); 1352ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT font = CreateFontIndirect(&lf); 1353ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT savefont = (HFONT)SelectObject(hdc, font); 1354ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT designFont = NULL; 1355ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 135605b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com const char stem_chars[] = {'i', 'I', '!', '1'}; 135705b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com int16_t min_width; 135805b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com unsigned glyphCount; 135905b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com 1360ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // To request design units, create a logical font whose height is specified 1361ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // as unitsPerEm. 1362ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com OUTLINETEXTMETRIC otm; 136339698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com unsigned int otmRet = GetOutlineTextMetrics(hdc, sizeof(otm), &otm); 136439698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (0 == otmRet) { 1365055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com call_ensure_accessible(lf); 136639698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com otmRet = GetOutlineTextMetrics(hdc, sizeof(otm), &otm); 136739698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 136839698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (!otmRet || !GetTextFace(hdc, LF_FACESIZE, lf.lfFaceName)) { 1369ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com goto Error; 1370ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1371ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com lf.lfHeight = -SkToS32(otm.otmEMSquare); 1372ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com designFont = CreateFontIndirect(&lf); 1373ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SelectObject(hdc, designFont); 1374ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (!GetOutlineTextMetrics(hdc, sizeof(otm), &otm)) { 1375ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com goto Error; 1376ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1377a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyphCount = calculateOutlineGlyphCount(hdc); 1378ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1379ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info = new SkAdvancedTypefaceMetrics; 1380ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fEmSize = otm.otmEMSquare; 1381ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fMultiMaster = false; 1382ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fLastGlyphID = SkToU16(glyphCount - 1); 1383ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle = 0; 13847103f182ce61280eacb35f1832df350b642a5381bungeman@google.com tchar_to_skstring(lf.lfFaceName, &info->fFontName); 1385ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 13866744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org if (perGlyphInfo & SkAdvancedTypefaceMetrics::kToUnicode_PerGlyphInfo) { 13876744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org populate_glyph_to_unicode(hdc, glyphCount, &(info->fGlyphToUnicode)); 13886744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 13896744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 1390d41e70de196e78e21e1001d23a7259785cbd0835vandebo@chromium.org if (glyphCount > 0 && 1391d41e70de196e78e21e1001d23a7259785cbd0835vandebo@chromium.org (otm.otmTextMetrics.tmPitchAndFamily & TMPF_TRUETYPE)) { 1392ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fType = SkAdvancedTypefaceMetrics::kTrueType_Font; 1393ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 1394ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fType = SkAdvancedTypefaceMetrics::kOther_Font; 1395ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fItalicAngle = 0; 1396ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fAscent = 0; 1397ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fDescent = 0; 1398ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStemV = 0; 1399ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fCapHeight = 0; 1400ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fBBox = SkIRect::MakeEmpty(); 1401390c6d7a9018e233a6519397ac6c739fb21a99efedisonn@google.com goto ReturnInfo; 1402ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 14035aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org 1404ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // If this bit is clear the font is a fixed pitch font. 1405ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (!(otm.otmTextMetrics.tmPitchAndFamily & TMPF_FIXED_PITCH)) { 1406ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kFixedPitch_Style; 1407ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1408ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (otm.otmTextMetrics.tmItalic) { 1409ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kItalic_Style; 1410ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1411ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (otm.otmTextMetrics.tmPitchAndFamily & FF_ROMAN) { 1412ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kSerif_Style; 1413ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else if (otm.otmTextMetrics.tmPitchAndFamily & FF_SCRIPT) { 1414ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kScript_Style; 1415ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1416ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1417ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // The main italic angle of the font, in tenths of a degree counterclockwise 1418ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // from vertical. 1419ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fItalicAngle = otm.otmItalicAngle / 10; 1420ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fAscent = SkToS16(otm.otmTextMetrics.tmAscent); 1421ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fDescent = SkToS16(-otm.otmTextMetrics.tmDescent); 1422ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // TODO(ctguil): Use alternate cap height calculation. 1423ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // MSDN says otmsCapEmHeight is not support but it is returning a value on 1424ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // my Win7 box. 1425ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fCapHeight = otm.otmsCapEmHeight; 1426ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fBBox = 1427ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkIRect::MakeLTRB(otm.otmrcFontBox.left, otm.otmrcFontBox.top, 1428ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com otm.otmrcFontBox.right, otm.otmrcFontBox.bottom); 1429ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1430ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Figure out a good guess for StemV - Min width of i, I, !, 1. 1431ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // This probably isn't very good with an italic font. 143205b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com min_width = SHRT_MAX; 1433ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStemV = 0; 1434ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com for (size_t i = 0; i < SK_ARRAY_COUNT(stem_chars); i++) { 1435ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ABC abcWidths; 1436ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (GetCharABCWidths(hdc, stem_chars[i], stem_chars[i], &abcWidths)) { 1437ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int16_t width = abcWidths.abcB; 1438ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (width > 0 && width < min_width) { 1439ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com min_width = width; 1440ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStemV = min_width; 1441ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1442ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1443ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1444ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1445ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // If bit 1 is set, the font may not be embedded in a document. 1446ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // If bit 1 is clear, the font can be embedded. 1447ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // If bit 2 is set, the embedding is read-only. 1448ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (otm.otmfsType & 0x1) { 1449ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fType = SkAdvancedTypefaceMetrics::kNotEmbeddable_Font; 14500e6dc0a320985ffd31f77eed8a41e62132b9ba95ctguil@chromium.org } else if (perGlyphInfo & 14510e6dc0a320985ffd31f77eed8a41e62132b9ba95ctguil@chromium.org SkAdvancedTypefaceMetrics::kHAdvance_PerGlyphInfo) { 14525aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org if (info->fStyle & SkAdvancedTypefaceMetrics::kFixedPitch_Style) { 14535aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org appendRange(&info->fGlyphWidths, 0); 14545aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org info->fGlyphWidths->fAdvance.append(1, &min_width); 14555aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org finishRange(info->fGlyphWidths.get(), 0, 14565aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org SkAdvancedTypefaceMetrics::WidthRange::kDefault); 14575aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org } else { 14585aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org info->fGlyphWidths.reset( 145937ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org getAdvanceData(hdc, 146037ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org glyphCount, 146137ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org glyphIDs, 146237ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org glyphIDsCount, 146337ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org &getWidthAdvance)); 14645aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org } 1465ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1466ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1467ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comError: 1468390c6d7a9018e233a6519397ac6c739fb21a99efedisonn@google.comReturnInfo: 1469ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SelectObject(hdc, savefont); 1470ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteObject(designFont); 1471ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteObject(font); 1472ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteDC(hdc); 1473ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1474ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return info; 1475ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1476ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1477a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com//Dummy representation of a Base64 encoded GUID from create_unique_font_name. 1478a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#define BASE64_GUID_ID "XXXXXXXXXXXXXXXXXXXXXXXX" 1479a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com//Length of GUID representation from create_id, including NULL terminator. 1480a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#define BASE64_GUID_ID_LEN SK_ARRAY_COUNT(BASE64_GUID_ID) 1481a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1482a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comSK_COMPILE_ASSERT(BASE64_GUID_ID_LEN < LF_FACESIZE, GUID_longer_than_facesize); 1483a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1484a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 1485a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com NameID 6 Postscript names cannot have the character '/'. 1486a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com It would be easier to hex encode the GUID, but that is 32 bytes, 1487a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com and many systems have issues with names longer than 28 bytes. 1488a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com The following need not be any standard base64 encoding. 1489a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com The encoded value is never decoded. 1490a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com*/ 1491d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.comstatic const char postscript_safe_base64_encode[] = 1492a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com "ABCDEFGHIJKLMNOPQRSTUVWXYZ" 1493a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com "abcdefghijklmnopqrstuvwxyz" 1494a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com "0123456789-_="; 1495a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1496a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 1497a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com Formats a GUID into Base64 and places it into buffer. 1498a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com buffer should have space for at least BASE64_GUID_ID_LEN characters. 1499a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com The string will always be null terminated. 1500a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com XXXXXXXXXXXXXXXXXXXXXXXX0 1501a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 1502a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comstatic void format_guid_b64(const GUID& guid, char* buffer, size_t bufferSize) { 1503a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com SkASSERT(bufferSize >= BASE64_GUID_ID_LEN); 1504a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com size_t written = SkBase64::Encode(&guid, sizeof(guid), buffer, postscript_safe_base64_encode); 1505a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com SkASSERT(written < LF_FACESIZE); 1506a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com buffer[written] = '\0'; 1507a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com} 1508a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1509a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 1510a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com Creates a Base64 encoded GUID and places it into buffer. 1511a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com buffer should have space for at least BASE64_GUID_ID_LEN characters. 1512a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com The string will always be null terminated. 1513a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com XXXXXXXXXXXXXXXXXXXXXXXX0 1514a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 1515a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comstatic HRESULT create_unique_font_name(char* buffer, size_t bufferSize) { 1516a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com GUID guid = {}; 1517a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com if (FAILED(CoCreateGuid(&guid))) { 1518a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return E_UNEXPECTED; 1519a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1520a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com format_guid_b64(guid, buffer, bufferSize); 1521a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1522a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return S_OK; 1523a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com} 1524a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1525a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 1526a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com Introduces a font to GDI. On failure will return NULL. The returned handle 1527a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com should eventually be passed to RemoveFontMemResourceEx. 1528a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com*/ 1529a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comstatic HANDLE activate_font(SkData* fontData) { 1530a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com DWORD numFonts = 0; 1531a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com //AddFontMemResourceEx just copies the data, but does not specify const. 1532a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com HANDLE fontHandle = AddFontMemResourceEx(const_cast<void*>(fontData->data()), 1533a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com fontData->size(), 1534a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 0, 1535a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com &numFonts); 1536a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1537a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com if (fontHandle != NULL && numFonts < 1) { 1538a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com RemoveFontMemResourceEx(fontHandle); 1539a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return NULL; 1540a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1541a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1542a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return fontHandle; 1543a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com} 1544a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1545437eea160b2f605d9074106891288e85baaecfefreed@google.comstatic SkTypeface* create_from_stream(SkStream* stream) { 1546a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Create a unique and unpredictable font name. 1547a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Avoids collisions and access from CSS. 1548a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com char familyName[BASE64_GUID_ID_LEN]; 1549a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com const int familyNameSize = SK_ARRAY_COUNT(familyName); 1550a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com if (FAILED(create_unique_font_name(familyName, familyNameSize))) { 1551a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return NULL; 1552a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1553d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com 1554a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Change the name of the font. 1555e9bbee397ce96aa6642a42823feb1d7c4a8ffd8bbungeman@google.com SkAutoTUnref<SkData> rewrittenFontData(SkOTUtils::RenameFont(stream, familyName, familyNameSize-1)); 1556e9bbee397ce96aa6642a42823feb1d7c4a8ffd8bbungeman@google.com if (NULL == rewrittenFontData.get()) { 1557a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return NULL; 1558a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1559ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1560a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Register the font with GDI. 1561e9bbee397ce96aa6642a42823feb1d7c4a8ffd8bbungeman@google.com HANDLE fontReference = activate_font(rewrittenFontData.get()); 1562a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com if (NULL == fontReference) { 1563a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return NULL; 1564a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1565a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1566a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Create the typeface. 1567a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com LOGFONT lf; 1568484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com logfont_for_name(familyName, &lf); 1569a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1570a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return SkCreateFontMemResourceTypefaceFromLOGFONT(lf, fontReference); 1571ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1572ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1573437eea160b2f605d9074106891288e85baaecfefreed@google.comSkTypeface* SkFontHost::CreateTypefaceFromStream(SkStream* stream) { 1574437eea160b2f605d9074106891288e85baaecfefreed@google.com return create_from_stream(stream); 1575437eea160b2f605d9074106891288e85baaecfefreed@google.com} 1576437eea160b2f605d9074106891288e85baaecfefreed@google.com 15770042b9c2a2e6fe954cdfbcd5a5b7449cdf41a4c3reed@google.comSkStream* LogFontTypeface::onOpenStream(int* ttcIndex) const { 15780042b9c2a2e6fe954cdfbcd5a5b7449cdf41a4c3reed@google.com *ttcIndex = 0; 15790042b9c2a2e6fe954cdfbcd5a5b7449cdf41a4c3reed@google.com 1580f4c2622a1a3489988f2d85a81fdc132b17a92bddctguil@chromium.org const DWORD kTTCTag = 1581f4c2622a1a3489988f2d85a81fdc132b17a92bddctguil@chromium.org SkEndian_SwapBE32(SkSetFourByteTag('t', 't', 'c', 'f')); 15820042b9c2a2e6fe954cdfbcd5a5b7449cdf41a4c3reed@google.com LOGFONT lf = fLogFont; 1583ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1584ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HDC hdc = ::CreateCompatibleDC(NULL); 158559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com HFONT font = CreateFontIndirect(&lf); 1586ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT savefont = (HFONT)SelectObject(hdc, font); 1587ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1588d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org SkMemoryStream* stream = NULL; 1589d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org DWORD tables[2] = {kTTCTag, 0}; 1590d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org for (int i = 0; i < SK_ARRAY_COUNT(tables); i++) { 1591d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org size_t bufferSize = GetFontData(hdc, tables[i], 0, NULL, 0); 159239698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (bufferSize == GDI_ERROR) { 1593055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com call_ensure_accessible(lf); 159439698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com bufferSize = GetFontData(hdc, tables[i], 0, NULL, 0); 159539698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 1596d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org if (bufferSize != GDI_ERROR) { 1597d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org stream = new SkMemoryStream(bufferSize); 1598d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org if (GetFontData(hdc, tables[i], 0, (void*)stream->getMemoryBase(), 1599d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org bufferSize)) { 1600d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org break; 1601d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org } else { 1602d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org delete stream; 1603d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org stream = NULL; 1604d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org } 1605d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org } 1606ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1607ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1608ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SelectObject(hdc, savefont); 1609ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteObject(font); 1610ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteDC(hdc); 1611ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1612ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return stream; 1613ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1614ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 16150da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.comSkScalerContext* LogFontTypeface::onCreateScalerContext(const SkDescriptor* desc) const { 16160da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.com return SkNEW_ARGS(SkScalerContext_Windows, (const_cast<LogFontTypeface*>(this), desc)); 1617ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1618ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1619ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com/** Return the closest matching typeface given either an existing family 1620ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com (specified by a typeface in that family) or by a familyName, and a 1621ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com requested style. 162290d812b77ab025d5fd01dab904287f5c5bf56228bungeman@google.com 1) If familyFace is null, use familyName. 162390d812b77ab025d5fd01dab904287f5c5bf56228bungeman@google.com 2) If familyName is null, use familyFace. 1624ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 3) If both are null, return the default font that best matches style 1625ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com This MUST not return NULL. 1626ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com */ 1627ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1628ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comSkTypeface* SkFontHost::CreateTypeface(const SkTypeface* familyFace, 1629ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com const char familyName[], 1630ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkTypeface::Style style) { 163159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LOGFONT lf; 1632ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (NULL == familyFace && NULL == familyName) { 163359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf = get_default_font(); 163459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } else if (familyFace) { 163559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LogFontTypeface* face = (LogFontTypeface*)familyFace; 163659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf = face->fLogFont; 1637ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 1638484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com logfont_for_name(familyName, &lf); 1639ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 164059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com setStyle(&lf, style); 164159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com return SkCreateTypefaceFromLOGFONT(lf); 1642ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1643ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1644ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comSkTypeface* SkFontHost::CreateTypefaceFromFile(const char path[]) { 1645f381162e5616daacdbcc06d693aca5111aeeebe8mike@reedtribe.org SkAutoTUnref<SkStream> stream(SkStream::NewFromFile(path)); 1646f381162e5616daacdbcc06d693aca5111aeeebe8mike@reedtribe.org return stream.get() ? CreateTypefaceFromStream(stream) : NULL; 1647ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1648ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 16490da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.comvoid LogFontTypeface::onFilterRec(SkScalerContextRec* rec) const { 1650c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org if (rec->fFlags & SkScalerContext::kLCD_BGROrder_Flag || 1651c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org rec->fFlags & SkScalerContext::kLCD_Vertical_Flag) 1652c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org { 1653c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org rec->fMaskFormat = SkMask::kA8_Format; 1654c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org rec->fFlags |= SkScalerContext::kGenA8FromLCD_Flag; 1655c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org } 1656c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org 1657e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com unsigned flagsWeDontSupport = SkScalerContext::kDevKernText_Flag | 1658e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kAutohinting_Flag | 1659e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kEmbeddedBitmapText_Flag | 1660e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kEmbolden_Flag | 1661c84547a8d3cb04f0547db282b34e26abfbe64ec3bungeman@google.com SkScalerContext::kSubpixelPositioning_Flag | 1662e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kLCD_BGROrder_Flag | 1663e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kLCD_Vertical_Flag; 1664e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com rec->fFlags &= ~flagsWeDontSupport; 1665e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com 1666e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkPaint::Hinting h = rec->getHinting(); 1667da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com 1668da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com // I think we can support no-hinting, if we get hires outlines and just 1669da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com // use skia to rasterize into a gray-scale mask... 1670da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com#if 0 1671e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com switch (h) { 1672e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kNo_Hinting: 1673e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kSlight_Hinting: 1674e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com h = SkPaint::kNo_Hinting; 1675e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com break; 1676e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kNormal_Hinting: 1677e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kFull_Hinting: 1678e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com h = SkPaint::kNormal_Hinting; 1679e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com break; 1680e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com default: 16810c00f21fee3f5cfa3aa7e5d46ff94cb8cf340451tomhudson@google.com SkDEBUGFAIL("unknown hinting"); 1682e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com } 1683da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com#else 1684da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com h = SkPaint::kNormal_Hinting; 1685da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com#endif 1686e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com rec->setHinting(h); 1687da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com 16889181aa84aa288d2bc3ab079b6b40a79ac87d8807reed@google.com// turn this off since GDI might turn A8 into BW! Need a bigger fix. 16899181aa84aa288d2bc3ab079b6b40a79ac87d8807reed@google.com#if 0 1690da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com // Disable LCD when rotated, since GDI's output is ugly 1691da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com if (isLCD(*rec) && !isAxisAligned(*rec)) { 1692da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com rec->fMaskFormat = SkMask::kA8_Format; 1693da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com } 16949181aa84aa288d2bc3ab079b6b40a79ac87d8807reed@google.com#endif 1695754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com 16960da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.com if (!fCanBeLCD && isLCD(*rec)) { 1697cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com rec->fMaskFormat = SkMask::kA8_Format; 1698cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com rec->fFlags &= ~SkScalerContext::kGenA8FromLCD_Flag; 1699754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } 1700754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com} 1701070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.com 1702070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.com/////////////////////////////////////////////////////////////////////////////// 1703070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.com 1704070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.com#include "SkFontMgr.h" 1705484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com#include "SkDataTable.h" 1706484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 1707484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comstatic bool valid_logfont_for_enum(const LOGFONT& lf, DWORD fontType) { 1708484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return TRUETYPE_FONTTYPE == fontType 1709484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com && lf.lfFaceName[0] 1710484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com && lf.lfFaceName[0] != '@' 1711484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com && OUT_STROKE_PRECIS == lf.lfOutPrecision 1712484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com // without the chraset check, we got LOTS of dups of the same font 1713484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com // is there a better check (other than searching the array for 1714484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com // the same name? 1715484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com && 0 == lf.lfCharSet 1716484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ; 1717484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com} 1718484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 1719484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comstatic int CALLBACK enum_fonts_proc(const LOGFONT* lf, const TEXTMETRIC*, 1720484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com DWORD fontType, LPARAM builderParam) { 1721484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com if (valid_logfont_for_enum(*lf, fontType)) { 1722a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com SkTDArray<ENUMLOGFONTEX>* array = (SkTDArray<ENUMLOGFONTEX>*)builderParam; 1723a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com *array->append() = *(ENUMLOGFONTEX*)lf; 1724484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 1725484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return 1; // non-zero means continue 1726484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com} 1727484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 1728484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comstatic SkFontStyle compute_fontstyle(const LOGFONT& lf) { 1729484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return SkFontStyle(lf.lfWeight, SkFontStyle::kNormal_Width, 1730484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com lf.lfItalic ? SkFontStyle::kItalic_Slant 1731484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com : SkFontStyle::kUpright_Slant); 1732484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com} 1733484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 1734484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comclass SkFontStyleSetGDI : public SkFontStyleSet { 1735484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.compublic: 1736a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com SkFontStyleSetGDI(const TCHAR familyName[]) { 1737484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com HDC hdc = ::CreateCompatibleDC(NULL); 1738a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com ::EnumFonts(hdc, familyName, enum_fonts_proc, (LPARAM)&fArray); 1739484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ::DeleteDC(hdc); 1740484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 1741484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 1742484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual int count() SK_OVERRIDE { 1743484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return fArray.count(); 1744484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 1745484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 1746484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual void getStyle(int index, SkFontStyle* fs, SkString* styleName) SK_OVERRIDE { 1747484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com if (fs) { 1748a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com *fs = compute_fontstyle(fArray[index].elfLogFont); 1749a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com } 1750a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com if (styleName) { 1751a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com const ENUMLOGFONTEX& ref = fArray[index]; 1752a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com // For some reason, ENUMLOGFONTEX and LOGFONT disagree on their type in the 1753a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com // non-unicode version. 1754a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com // ENUMLOGFONTEX uses BYTE 1755a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com // LOGFONT uses CHAR 1756a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com // Here we assert they that the style name is logically the same (size) as 1757a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com // a TCHAR, so we can use the same converter function. 1758a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com SkASSERT(sizeof(TCHAR) == sizeof(ref.elfStyle[0])); 1759a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com tchar_to_skstring((const TCHAR*)ref.elfStyle, styleName); 1760484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 1761484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 1762484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 1763484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual SkTypeface* createTypeface(int index) SK_OVERRIDE { 1764a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com return SkCreateTypefaceFromLOGFONT(fArray[index].elfLogFont); 1765484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 1766484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 1767484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual SkTypeface* matchStyle(const SkFontStyle& pattern) SK_OVERRIDE { 1768484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com // todo: 1769a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com return SkCreateTypefaceFromLOGFONT(fArray[0].elfLogFont); 1770484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 1771484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 1772484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comprivate: 1773a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com SkTDArray<ENUMLOGFONTEX> fArray; 1774484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com}; 1775484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 1776484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comstatic int CALLBACK enum_family_proc(const LOGFONT* lf, const TEXTMETRIC* tm, 1777484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com DWORD fontType, LPARAM builderParam) { 1778484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com if (valid_logfont_for_enum(*lf, fontType)) { 1779a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com SkTDArray<ENUMLOGFONTEX>* array = (SkTDArray<ENUMLOGFONTEX>*)builderParam; 1780a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com *array->append() = *(ENUMLOGFONTEX*)lf; 1781484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com#if 0 1782484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com SkString str; 1783484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com tchar_to_skstring(lf->lfFaceName, &str); 1784484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@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", 1785484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com str.c_str(), lf->lfHeight, lf->lfWidth, lf->lfEscapement, lf->lfOrientation, 1786484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com lf->lfWeight, lf->lfItalic, lf->lfCharSet, lf->lfClipPrecision, lf->lfQuality, 1787484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com lf->lfPitchAndFamily); 1788484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com#endif 1789484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 1790484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return 1; // non-zero means continue 1791484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com} 1792484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 1793484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comclass SkFontMgrGDI : public SkFontMgr { 1794484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com void init() { 1795484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com if (!fLogFontArray.isEmpty()) { 1796484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return; 1797484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 1798484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 1799484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com LOGFONT lf; 1800484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com sk_bzero(&lf, sizeof(lf)); 1801484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com lf.lfCharSet = DEFAULT_CHARSET; 1802484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 1803484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com HDC hdc = ::CreateCompatibleDC(NULL); 1804484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ::EnumFontFamiliesEx(hdc, &lf, enum_family_proc, (LPARAM)&fLogFontArray, 0); 1805484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ::DeleteDC(hdc); 1806484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 1807484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 1808484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.compublic: 1809484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com SkFontMgrGDI() {} 1810484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 1811484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comprotected: 1812484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual int onCountFamilies() SK_OVERRIDE { 1813484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com this->init(); 1814484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return fLogFontArray.count(); 1815484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 1816484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 1817484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual void onGetFamilyName(int index, SkString* familyName) SK_OVERRIDE { 1818484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com this->init(); 1819484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com SkASSERT((unsigned)index < (unsigned)fLogFontArray.count()); 1820a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com tchar_to_skstring(fLogFontArray[index].elfLogFont.lfFaceName, familyName); 1821484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 1822484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 1823484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual SkFontStyleSet* onCreateStyleSet(int index) SK_OVERRIDE { 1824484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com this->init(); 1825484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com SkASSERT((unsigned)index < (unsigned)fLogFontArray.count()); 1826a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com return SkNEW_ARGS(SkFontStyleSetGDI, (fLogFontArray[index].elfLogFont.lfFaceName)); 1827484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 1828484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 1829484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual SkFontStyleSet* onMatchFamily(const char familyName[]) SK_OVERRIDE { 1830484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com if (NULL == familyName) { 1831484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com familyName = ""; // do we need this check??? 1832484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 1833484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com LOGFONT lf; 1834484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com logfont_for_name(familyName, &lf); 1835a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com return SkNEW_ARGS(SkFontStyleSetGDI, (lf.lfFaceName)); 1836484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 1837484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 1838484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual SkTypeface* onMatchFamilyStyle(const char familyName[], 1839484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com const SkFontStyle& fontstyle) SK_OVERRIDE { 1840437eea160b2f605d9074106891288e85baaecfefreed@google.com // could be in base impl 1841484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com SkAutoTUnref<SkFontStyleSet> sset(this->matchFamily(familyName)); 1842484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return sset->matchStyle(fontstyle); 1843484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 1844484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 1845484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual SkTypeface* onMatchFaceStyle(const SkTypeface* familyMember, 1846484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com const SkFontStyle& fontstyle) SK_OVERRIDE { 1847437eea160b2f605d9074106891288e85baaecfefreed@google.com // could be in base impl 1848484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com SkString familyName; 1849484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ((LogFontTypeface*)familyMember)->getFamilyName(&familyName); 1850484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return this->matchFamilyStyle(familyName.c_str(), fontstyle); 1851484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 1852484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 1853437eea160b2f605d9074106891288e85baaecfefreed@google.com virtual SkTypeface* onCreateFromStream(SkStream* stream, int ttcIndex) SK_OVERRIDE { 1854437eea160b2f605d9074106891288e85baaecfefreed@google.com return create_from_stream(stream); 1855484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 1856437eea160b2f605d9074106891288e85baaecfefreed@google.com 1857437eea160b2f605d9074106891288e85baaecfefreed@google.com virtual SkTypeface* onCreateFromData(SkData* data, int ttcIndex) SK_OVERRIDE { 1858437eea160b2f605d9074106891288e85baaecfefreed@google.com // could be in base impl 1859437eea160b2f605d9074106891288e85baaecfefreed@google.com SkAutoTUnref<SkStream> stream(SkNEW_ARGS(SkMemoryStream, (data))); 1860437eea160b2f605d9074106891288e85baaecfefreed@google.com return this->createFromStream(stream); 1861484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 1862437eea160b2f605d9074106891288e85baaecfefreed@google.com 1863484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual SkTypeface* onCreateFromFile(const char path[], int ttcIndex) SK_OVERRIDE { 1864437eea160b2f605d9074106891288e85baaecfefreed@google.com // could be in base impl 1865437eea160b2f605d9074106891288e85baaecfefreed@google.com SkAutoTUnref<SkStream> stream(SkStream::NewFromFile(path)); 1866437eea160b2f605d9074106891288e85baaecfefreed@google.com return this->createFromStream(stream); 1867484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 1868484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 1869484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comprivate: 1870a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com SkTDArray<ENUMLOGFONTEX> fLogFontArray; 1871484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com}; 1872070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.com 1873070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.comSkFontMgr* SkFontMgr::Factory() { 1874484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return SkNEW(SkFontMgrGDI); 1875070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.com} 1876