SkFontHost_win.cpp revision 05a729ff90f75ac013873742ee0e4ae7e5e6e415
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" 2205a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com#include "SkTemplates.h" 23ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkThread.h" 24ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkTypeface_win.h" 2559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com#include "SkTypefaceCache.h" 26ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkUtils.h" 27ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 28a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include "SkTypes.h" 29a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include <tchar.h> 30a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include <usp10.h> 31a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include <objbase.h> 32ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 33f210f505ffffccc15ae5e91f8ccb9763ba7fc152reed@google.comstatic void (*gEnsureLOGFONTAccessibleProc)(const LOGFONT&); 34f210f505ffffccc15ae5e91f8ccb9763ba7fc152reed@google.com 35f210f505ffffccc15ae5e91f8ccb9763ba7fc152reed@google.comvoid SkTypeface_SetEnsureLOGFONTAccessibleProc(void (*proc)(const LOGFONT&)) { 36f210f505ffffccc15ae5e91f8ccb9763ba7fc152reed@google.com gEnsureLOGFONTAccessibleProc = proc; 37f210f505ffffccc15ae5e91f8ccb9763ba7fc152reed@google.com} 38f210f505ffffccc15ae5e91f8ccb9763ba7fc152reed@google.com 39055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.comstatic void call_ensure_accessible(const LOGFONT& lf) { 40055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com if (gEnsureLOGFONTAccessibleProc) { 41055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com gEnsureLOGFONTAccessibleProc(lf); 42055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com } 43055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com} 44055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com 45055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com/////////////////////////////////////////////////////////////////////////////// 46055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com 476f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com// always packed xxRRGGBB 486f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.comtypedef uint32_t SkGdiRGB; 496f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com 50a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com// define this in your Makefile or .gyp to enforce AA requests 51a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com// which GDI ignores at small sizes. This flag guarantees AA 52a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com// for rotated text, regardless of GDI's notions. 53a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com//#define SK_ENFORCE_ROTATED_TEXT_AA_ON_WINDOWS 54a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 5582a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.comstatic bool isLCD(const SkScalerContext::Rec& rec) { 5682a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com return SkMask::kLCD16_Format == rec.fMaskFormat || 5782a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com SkMask::kLCD32_Format == rec.fMaskFormat; 5882a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com} 5982a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 60a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.comstatic bool bothZero(SkScalar a, SkScalar b) { 61a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com return 0 == a && 0 == b; 62a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com} 63a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 64a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com// returns false if there is any non-90-rotation or skew 65a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.comstatic bool isAxisAligned(const SkScalerContext::Rec& rec) { 66a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com return 0 == rec.fPreSkewX && 67a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com (bothZero(rec.fPost2x2[0][1], rec.fPost2x2[1][0]) || 68a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com bothZero(rec.fPost2x2[0][0], rec.fPost2x2[1][1])); 69a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com} 70a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 71a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.comstatic bool needToRenderWithSkia(const SkScalerContext::Rec& rec) { 72a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com#ifdef SK_ENFORCE_ROTATED_TEXT_AA_ON_WINDOWS 73a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // What we really want to catch is when GDI will ignore the AA request and give 74a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // us BW instead. Smallish rotated text is one heuristic, so this code is just 75a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // an approximation. We shouldn't need to do this for larger sizes, but at those 76a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // sizes, the quality difference gets less and less between our general 77a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // scanconverter and GDI's. 78a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com if (SkMask::kA8_Format == rec.fMaskFormat && !isAxisAligned(rec)) { 79a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com return true; 80a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com } 81a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com#endif 82a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // false means allow GDI to generate the bits 83a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com return false; 84a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com} 85a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 86ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comusing namespace skia_advanced_typeface_metrics_utils; 87ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 88ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com/** 895aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org * Since LOGFONT wants its textsize as an int, and we support fractional sizes, 90ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com * and since we have a cache of LOGFONTs for our tyepfaces, we always set the 91ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com * lfHeight to a canonical size, and then we use the 2x2 matrix to achieve the 92ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com * actual requested size. 9360af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com * 9460af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com * Not critical to match the font's upem, but we want it big enough to avoid 9560af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com * precision loss for GDI calls that return ints (e.g. GetOutlineFontMetrics). 96ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com */ 9760af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.comstatic const int gCanonicalTextSize = 2048; 98ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 99a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.comstatic void tchar_to_skstring(const TCHAR t[], SkString* s) { 100484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com#ifdef UNICODE 101484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com size_t sSize = WideCharToMultiByte(CP_UTF8, 0, t, -1, NULL, 0, NULL, NULL); 102484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com s->resize(sSize); 103484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com WideCharToMultiByte(CP_UTF8, 0, t, -1, s->writable_str(), sSize, NULL, NULL); 104484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com#else 105484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com s->set(t); 106484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com#endif 107484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com} 108484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 109ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic void make_canonical(LOGFONT* lf) { 1105aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org lf->lfHeight = -gCanonicalTextSize; 11159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf->lfQuality = CLEARTYPE_QUALITY;//PROOF_QUALITY; 11259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf->lfCharSet = DEFAULT_CHARSET; 11382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com// lf->lfClipPrecision = 64; 11459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com} 11559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 11690d812b77ab025d5fd01dab904287f5c5bf56228bungeman@google.comstatic SkTypeface::Style get_style(const LOGFONT& lf) { 11759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com unsigned style = 0; 11859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com if (lf.lfWeight >= FW_BOLD) { 11959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com style |= SkTypeface::kBold; 12059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } 12159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com if (lf.lfItalic) { 12259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com style |= SkTypeface::kItalic; 12359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } 12490d812b77ab025d5fd01dab904287f5c5bf56228bungeman@google.com return static_cast<SkTypeface::Style>(style); 12559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com} 12659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 12759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.comstatic void setStyle(LOGFONT* lf, SkTypeface::Style style) { 12859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf->lfWeight = (style & SkTypeface::kBold) != 0 ? FW_BOLD : FW_NORMAL ; 12959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf->lfItalic = ((style & SkTypeface::kItalic) != 0); 130ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 131ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 132ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic inline FIXED SkFixedToFIXED(SkFixed x) { 133ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return *(FIXED*)(&x); 134ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 135a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.comstatic inline SkFixed SkFIXEDToFixed(FIXED x) { 136a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com return *(SkFixed*)(&x); 137a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com} 138ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 139ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic inline FIXED SkScalarToFIXED(SkScalar x) { 140ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkFixedToFIXED(SkScalarToFixed(x)); 141ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 142ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 143a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.comstatic unsigned calculateOutlineGlyphCount(HDC hdc) { 144ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // The 'maxp' table stores the number of glyphs at offset 4, in 2 bytes. 145f4c2622a1a3489988f2d85a81fdc132b17a92bddctguil@chromium.org const DWORD maxpTag = 146f4c2622a1a3489988f2d85a81fdc132b17a92bddctguil@chromium.org SkEndian_SwapBE32(SkSetFourByteTag('m', 'a', 'x', 'p')); 147ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com uint16_t glyphs; 148ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (GetFontData(hdc, maxpTag, 4, &glyphs, sizeof(glyphs)) != GDI_ERROR) { 149ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkEndian_SwapBE16(glyphs); 150ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1515aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org 152ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Binary search for glyph count. 153ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com static const MAT2 mat2 = {{0, 1}, {0, 0}, {0, 0}, {0, 1}}; 154ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int32_t max = SK_MaxU16 + 1; 155ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int32_t min = 0; 156ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com GLYPHMETRICS gm; 157ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com while (min < max) { 158ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int32_t mid = min + ((max - min) / 2); 159ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (GetGlyphOutlineW(hdc, mid, GGO_METRICS | GGO_GLYPH_INDEX, &gm, 0, 160ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com NULL, &mat2) == GDI_ERROR) { 161ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com max = mid; 162ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 163ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com min = mid + 1; 164ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 165ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 166ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(min == max); 167ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return min; 168ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 169ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 170ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comclass LogFontTypeface : public SkTypeface { 171ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.compublic: 172cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com LogFontTypeface(SkTypeface::Style style, SkFontID fontID, const LOGFONT& lf, bool serializeAsStream = false) : 173cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com SkTypeface(style, fontID, false), fLogFont(lf), fSerializeAsStream(serializeAsStream) { 174cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com 175cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com // If the font has cubic outlines, it will not be rendered with ClearType. 176cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com HFONT font = CreateFontIndirect(&lf); 177cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com 178cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com HDC deviceContext = ::CreateCompatibleDC(NULL); 179cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com HFONT savefont = (HFONT)SelectObject(deviceContext, font); 180cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com 181cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com TEXTMETRIC textMetric; 182cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com if (0 == GetTextMetrics(deviceContext, &textMetric)) { 183055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com call_ensure_accessible(lf); 184cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com if (0 == GetTextMetrics(deviceContext, &textMetric)) { 185cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com textMetric.tmPitchAndFamily = TMPF_TRUETYPE; 186cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com } 187cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com } 188cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com if (deviceContext) { 189cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com ::SelectObject(deviceContext, savefont); 190cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com ::DeleteDC(deviceContext); 191cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com } 192cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com if (font) { 193cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com ::DeleteObject(font); 194cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com } 195cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com 196fe74765f0d302669ae49e68074492bdfe0ce6e6fbungeman@google.com // The fixed pitch bit is set if the font is *not* fixed pitch. 197fe74765f0d302669ae49e68074492bdfe0ce6e6fbungeman@google.com this->setIsFixedPitch((textMetric.tmPitchAndFamily & TMPF_FIXED_PITCH) == 0); 198fe74765f0d302669ae49e68074492bdfe0ce6e6fbungeman@google.com 199cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com // Used a logfont on a memory context, should never get a device font. 200cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com // Therefore all TMPF_DEVICE will be PostScript (cubic) fonts. 201cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com fCanBeLCD = !((textMetric.tmPitchAndFamily & TMPF_VECTOR) && 202cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com (textMetric.tmPitchAndFamily & TMPF_DEVICE)); 203cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com } 204ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 205484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com void getFamilyName(SkString* name) const { 206484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com tchar_to_skstring(fLogFont.lfFaceName, name); 207484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 208484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 20959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LOGFONT fLogFont; 210e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com bool fSerializeAsStream; 211cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com bool fCanBeLCD; 212ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 21359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com static LogFontTypeface* Create(const LOGFONT& lf) { 21490d812b77ab025d5fd01dab904287f5c5bf56228bungeman@google.com SkTypeface::Style style = get_style(lf); 21559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com SkFontID fontID = SkTypefaceCache::NewFontID(); 21659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com return new LogFontTypeface(style, fontID, lf); 217ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 2180da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.com 219055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com static void EnsureAccessible(const SkTypeface* face) { 220055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com call_ensure_accessible(static_cast<const LogFontTypeface*>(face)->fLogFont); 221055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com } 222055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com 2230da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.comprotected: 2240042b9c2a2e6fe954cdfbcd5a5b7449cdf41a4c3reed@google.com virtual SkStream* onOpenStream(int* ttcIndex) const SK_OVERRIDE; 2250da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.com virtual SkScalerContext* onCreateScalerContext(const SkDescriptor*) const SK_OVERRIDE; 2260da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.com virtual void onFilterRec(SkScalerContextRec*) const SK_OVERRIDE; 2272689f615e364dc48ad73826564f5b13d2329179dreed@google.com virtual SkAdvancedTypefaceMetrics* onGetAdvancedTypefaceMetrics( 2282689f615e364dc48ad73826564f5b13d2329179dreed@google.com SkAdvancedTypefaceMetrics::PerGlyphInfo, 2292689f615e364dc48ad73826564f5b13d2329179dreed@google.com const uint32_t*, uint32_t) const SK_OVERRIDE; 2305526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.com virtual void onGetFontDescriptor(SkFontDescriptor*, bool*) const SK_OVERRIDE; 231ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com}; 232ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 233a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comclass FontMemResourceTypeface : public LogFontTypeface { 234a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.compublic: 235a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com /** 236a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com * Takes ownership of fontMemResource. 237a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 238a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com FontMemResourceTypeface(SkTypeface::Style style, SkFontID fontID, const LOGFONT& lf, HANDLE fontMemResource) : 239cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com LogFontTypeface(style, fontID, lf, true), fFontMemResource(fontMemResource) { 240e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com } 241a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 242a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com HANDLE fFontMemResource; 243a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 244a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com /** 245a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com * The created FontMemResourceTypeface takes ownership of fontMemResource. 246a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 247a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com static FontMemResourceTypeface* Create(const LOGFONT& lf, HANDLE fontMemResource) { 248a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com SkTypeface::Style style = get_style(lf); 249a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com SkFontID fontID = SkTypefaceCache::NewFontID(); 250a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return new FontMemResourceTypeface(style, fontID, lf, fontMemResource); 251a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 252a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 253a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comprotected: 254a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com virtual void weak_dispose() const SK_OVERRIDE { 255a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com RemoveFontMemResourceEx(fFontMemResource); 256a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com //SkTypefaceCache::Remove(this); 257a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com INHERITED::weak_dispose(); 258a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 259a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 260a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comprivate: 261a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com typedef LogFontTypeface INHERITED; 262a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com}; 263a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 264ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic const LOGFONT& get_default_font() { 265ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com static LOGFONT gDefaultFont; 266ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return gDefaultFont; 267ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 268ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 26959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.comstatic bool FindByLogFont(SkTypeface* face, SkTypeface::Style requestedStyle, void* ctx) { 270a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com LogFontTypeface* lface = static_cast<LogFontTypeface*>(face); 27159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com const LOGFONT* lf = reinterpret_cast<const LOGFONT*>(ctx); 272ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 273a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return lface && 274a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com get_style(lface->fLogFont) == requestedStyle && 27559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com !memcmp(&lface->fLogFont, lf, sizeof(LOGFONT)); 27659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com} 27759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 27859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com/** 27959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com * This guy is public. It first searches the cache, and if a match is not found, 28059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com * it creates a new face. 28159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com */ 28259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.comSkTypeface* SkCreateTypefaceFromLOGFONT(const LOGFONT& origLF) { 28359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LOGFONT lf = origLF; 28459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com make_canonical(&lf); 285ee51d1a6e43615ae640410013c36d2d9873e6aa5bungeman@google.com SkTypeface* face = SkTypefaceCache::FindByProcAndRef(FindByLogFont, &lf); 286ee51d1a6e43615ae640410013c36d2d9873e6aa5bungeman@google.com if (NULL == face) { 28759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com face = LogFontTypeface::Create(lf); 28890d812b77ab025d5fd01dab904287f5c5bf56228bungeman@google.com SkTypefaceCache::Add(face, get_style(lf)); 28959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } 29059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com return face; 291ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 292ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 293db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com/** 294a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com * The created SkTypeface takes ownership of fontMemResource. 295a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 296a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comSkTypeface* SkCreateFontMemResourceTypefaceFromLOGFONT(const LOGFONT& origLF, HANDLE fontMemResource) { 297a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com LOGFONT lf = origLF; 298a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com make_canonical(&lf); 299a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com FontMemResourceTypeface* face = FontMemResourceTypeface::Create(lf, fontMemResource); 300a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com SkTypefaceCache::Add(face, get_style(lf), false); 301a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return face; 302a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com} 303a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 304a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 305db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com * This guy is public 306db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com */ 307db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.comvoid SkLOGFONTFromTypeface(const SkTypeface* face, LOGFONT* lf) { 308db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com if (NULL == face) { 309db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com *lf = get_default_font(); 310db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com } else { 311a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com *lf = static_cast<const LogFontTypeface*>(face)->fLogFont; 312db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com } 313db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com} 314db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com 31559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.comstatic void GetLogFontByID(SkFontID fontID, LOGFONT* lf) { 316a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com LogFontTypeface* face = static_cast<LogFontTypeface*>(SkTypefaceCache::FindByID(fontID)); 31759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com if (face) { 31859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com *lf = face->fLogFont; 31959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } else { 32059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com sk_bzero(lf, sizeof(LOGFONT)); 32159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } 32259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com} 32359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 3246744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// Construct Glyph to Unicode table. 3256744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// Unicode code points that require conjugate pairs in utf16 are not 3266744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// supported. 3276744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// TODO(arthurhsu): Add support for conjugate pairs. It looks like that may 3286744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// require parsing the TTF cmap table (platform 4, encoding 12) directly instead 3296744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// of calling GetFontUnicodeRange(). 3306744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.orgstatic void populate_glyph_to_unicode(HDC fontHdc, const unsigned glyphCount, 3316744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkTDArray<SkUnichar>* glyphToUnicode) { 3326744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org DWORD glyphSetBufferSize = GetFontUnicodeRanges(fontHdc, NULL); 3336744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org if (!glyphSetBufferSize) { 3346744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org return; 3356744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 3366744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 3376744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkAutoTDeleteArray<BYTE> glyphSetBuffer(new BYTE[glyphSetBufferSize]); 3386744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org GLYPHSET* glyphSet = 3396744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org reinterpret_cast<LPGLYPHSET>(glyphSetBuffer.get()); 3406744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org if (GetFontUnicodeRanges(fontHdc, glyphSet) != glyphSetBufferSize) { 3416744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org return; 3426744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 3436744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 3446744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org glyphToUnicode->setCount(glyphCount); 3456744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org memset(glyphToUnicode->begin(), 0, glyphCount * sizeof(SkUnichar)); 3466744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org for (DWORD i = 0; i < glyphSet->cRanges; ++i) { 3476744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // There is no guarantee that within a Unicode range, the corresponding 3486744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // glyph id in a font file are continuous. So, even if we have ranges, 3496744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // we can't just use the first and last entry of the range to compute 3506744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // result. We need to enumerate them one by one. 3516744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org int count = glyphSet->ranges[i].cGlyphs; 3526744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkAutoTArray<WCHAR> chars(count + 1); 3536744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org chars[count] = 0; // termintate string 3546744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkAutoTArray<WORD> glyph(count); 3556744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org for (USHORT j = 0; j < count; ++j) { 3566744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org chars[j] = glyphSet->ranges[i].wcLow + j; 3576744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 3586744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org GetGlyphIndicesW(fontHdc, chars.get(), count, glyph.get(), 3596744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org GGI_MARK_NONEXISTING_GLYPHS); 3606744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // If the glyph ID is valid, and the glyph is not mapped, then we will 3616744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // fill in the char id into the vector. If the glyph is mapped already, 3626744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // skip it. 3636744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // TODO(arthurhsu): better improve this. e.g. Get all used char ids from 3646744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // font cache, then generate this mapping table from there. It's 3656744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // unlikely to have collisions since glyph reuse happens mostly for 3666744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // different Unicode pages. 3676744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org for (USHORT j = 0; j < count; ++j) { 3686744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org if (glyph[j] != 0xffff && glyph[j] < glyphCount && 3696744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org (*glyphToUnicode)[glyph[j]] == 0) { 3706744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org (*glyphToUnicode)[glyph[j]] = chars[j]; 3716744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 3726744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 3736744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 3746744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org} 3756744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 37699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com////////////////////////////////////////////////////////////////////////////////////// 37799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 37899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.comstatic int alignTo32(int n) { 37999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com return (n + 31) & ~31; 38099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com} 38199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 38299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.comstruct MyBitmapInfo : public BITMAPINFO { 38399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com RGBQUAD fMoreSpaceForColors[1]; 38499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com}; 38599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 38699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.comclass HDCOffscreen { 38799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.compublic: 38899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HDCOffscreen() { 38999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fFont = 0; 39099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fDC = 0; 39199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fBM = 0; 39299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fBits = NULL; 39399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fWidth = fHeight = 0; 39499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fIsBW = false; 39599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 39699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 39799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com ~HDCOffscreen() { 39899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (fDC) { 39999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com DeleteDC(fDC); 40099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 40199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (fBM) { 40299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com DeleteObject(fBM); 40399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 40499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 40599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 40699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com void init(HFONT font, const XFORM& xform) { 40799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fFont = font; 40899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fXform = xform; 40999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 41099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 41197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const void* draw(const SkGlyph&, bool isBW, size_t* srcRBPtr); 41299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 41399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.comprivate: 41499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HDC fDC; 41599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HBITMAP fBM; 41699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HFONT fFont; 41799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com XFORM fXform; 41899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com void* fBits; // points into fBM 41999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com int fWidth; 42099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com int fHeight; 42199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com bool fIsBW; 422754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com 423754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com enum { 424754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com // will always trigger us to reset the color, since we 4256f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com // should only store 0 or 0x00FFFFFF or gray (0x007F7F7F) 426754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com kInvalid_Color = 12345 427754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com }; 42899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com}; 42999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 430754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.comconst void* HDCOffscreen::draw(const SkGlyph& glyph, bool isBW, 43197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com size_t* srcRBPtr) { 43299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (0 == fDC) { 43399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fDC = CreateCompatibleDC(0); 43499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (0 == fDC) { 43599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com return NULL; 43699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 43799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SetGraphicsMode(fDC, GM_ADVANCED); 43899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SetBkMode(fDC, TRANSPARENT); 43999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SetTextAlign(fDC, TA_LEFT | TA_BASELINE); 44099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SelectObject(fDC, fFont); 44197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com 44297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com COLORREF color = 0x00FFFFFF; 443b58a639b2fbe919489654bb506efdb024a308a8ebsalomon@google.com SkDEBUGCODE(COLORREF prev =) SetTextColor(fDC, color); 44497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com SkASSERT(prev != CLR_INVALID); 44599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 44699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 44799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (fBM && (fIsBW != isBW || fWidth < glyph.fWidth || fHeight < glyph.fHeight)) { 44899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com DeleteObject(fBM); 44999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fBM = 0; 45099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 451754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com fIsBW = isBW; 45299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 45399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fWidth = SkMax32(fWidth, glyph.fWidth); 45499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fHeight = SkMax32(fHeight, glyph.fHeight); 45599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 45699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com int biWidth = isBW ? alignTo32(fWidth) : fWidth; 45799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 45899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (0 == fBM) { 45999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com MyBitmapInfo info; 46099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com sk_bzero(&info, sizeof(info)); 46199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (isBW) { 46299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com RGBQUAD blackQuad = { 0, 0, 0, 0 }; 46399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com RGBQUAD whiteQuad = { 0xFF, 0xFF, 0xFF, 0 }; 46499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiColors[0] = blackQuad; 46599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiColors[1] = whiteQuad; 46699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 46799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biSize = sizeof(info.bmiHeader); 46899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biWidth = biWidth; 46999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biHeight = fHeight; 47099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biPlanes = 1; 47199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biBitCount = isBW ? 1 : 32; 47299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biCompression = BI_RGB; 47399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (isBW) { 47499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biClrUsed = 2; 47599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 47699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fBM = CreateDIBSection(fDC, &info, DIB_RGB_COLORS, &fBits, 0, 0); 47799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (0 == fBM) { 47899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com return NULL; 47999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 48099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SelectObject(fDC, fBM); 48199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 48299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 48399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com // erase 48499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com size_t srcRB = isBW ? (biWidth >> 3) : (fWidth << 2); 48599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com size_t size = fHeight * srcRB; 48697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com memset(fBits, 0, size); 48799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 48899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com XFORM xform = fXform; 48999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com xform.eDx = (float)-glyph.fLeft; 49099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com xform.eDy = (float)-glyph.fTop; 49199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SetWorldTransform(fDC, &xform); 49299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 49399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com uint16_t glyphID = glyph.getGlyphID(); 49439698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com BOOL ret = ExtTextOutW(fDC, 0, 0, ETO_GLYPH_INDEX, NULL, reinterpret_cast<LPCWSTR>(&glyphID), 1, NULL); 49599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com GdiFlush(); 49639698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (0 == ret) { 49739698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com return NULL; 49839698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 49999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com *srcRBPtr = srcRB; 50099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com // offset to the start of the image 50199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com return (const char*)fBits + (fHeight - glyph.fHeight) * srcRB; 50299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com} 50399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 504b8a5c618d2e18d71707ae4dcafbe5153d7ff427freed@google.com////////////////////////////////////////////////////////////////////////////// 50559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 506ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comclass SkScalerContext_Windows : public SkScalerContext { 507ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.compublic: 5080da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.com SkScalerContext_Windows(SkTypeface*, const SkDescriptor* desc); 509ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com virtual ~SkScalerContext_Windows(); 510ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 511ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comprotected: 51297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com virtual unsigned generateGlyphCount() SK_OVERRIDE; 51397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com virtual uint16_t generateCharToGlyph(SkUnichar uni) SK_OVERRIDE; 51497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com virtual void generateAdvance(SkGlyph* glyph) SK_OVERRIDE; 51597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com virtual void generateMetrics(SkGlyph* glyph) SK_OVERRIDE; 516a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com virtual void generateImage(const SkGlyph& glyph) SK_OVERRIDE; 51797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com virtual void generatePath(const SkGlyph& glyph, SkPath* path) SK_OVERRIDE; 518a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com virtual void generateFontMetrics(SkPaint::FontMetrics* mX, 519a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com SkPaint::FontMetrics* mY) SK_OVERRIDE; 52099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 521ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comprivate: 52299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HDCOffscreen fOffscreen; 5235aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org SkScalar fScale; // to get from canonical size to real size 524ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com MAT2 fMat22; 525ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HDC fDDC; 526ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT fSavefont; 527ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT fFont; 528ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SCRIPT_CACHE fSC; 529ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int fGlyphCount; 5301dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 5311dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com HFONT fHiResFont; 5321dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com MAT2 fMat22Identity; 5331dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com SkMatrix fHiResMatrix; 534a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com enum Type { 535a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com kTrueType_Type, kBitmap_Type, 536a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } fType; 537a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com TEXTMETRIC fTM; 538ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com}; 539ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 540ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic float mul2float(SkScalar a, SkScalar b) { 541ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkScalarToFloat(SkScalarMul(a, b)); 542ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 543ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 544ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic FIXED float2FIXED(float x) { 545ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkFixedToFIXED(SkFloatToFixed(x)); 546ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 547ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 5481dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com#define HIRES_TEXTSIZE 2048 5491dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com#define HIRES_SHIFT 11 5501dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.comstatic inline SkFixed HiResToFixed(int value) { 5511dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com return value << (16 - HIRES_SHIFT); 5521dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com} 5531dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 5541dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.comstatic bool needHiResMetrics(const SkScalar mat[2][2]) { 5551dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com return mat[1][0] || mat[0][1]; 5561dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com} 5571dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 55882a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.comstatic BYTE compute_quality(const SkScalerContext::Rec& rec) { 55982a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com switch (rec.fMaskFormat) { 56082a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com case SkMask::kBW_Format: 56182a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com return NONANTIALIASED_QUALITY; 56282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com case SkMask::kLCD16_Format: 56382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com case SkMask::kLCD32_Format: 56482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com return CLEARTYPE_QUALITY; 56582a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com default: 5668351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com if (rec.fFlags & SkScalerContext::kGenA8FromLCD_Flag) { 5678351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com return CLEARTYPE_QUALITY; 5688351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com } else { 5698351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com return ANTIALIASED_QUALITY; 5708351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com } 57182a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com } 57282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com} 57382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 574055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.comSkScalerContext_Windows::SkScalerContext_Windows(SkTypeface* rawTypeface, 5750da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.com const SkDescriptor* desc) 576055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com : SkScalerContext(rawTypeface, desc) 577055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com , fDDC(0) 578055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com , fFont(0) 579055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com , fSavefont(0) 580055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com , fSC(0) 58105a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com , fGlyphCount(-1) 58205a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com{ 583055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com LogFontTypeface* typeface = reinterpret_cast<LogFontTypeface*>(rawTypeface); 584055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com 585ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fDDC = ::CreateCompatibleDC(NULL); 5861dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com SetGraphicsMode(fDDC, GM_ADVANCED); 587ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SetBkMode(fDDC, TRANSPARENT); 588ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 589ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Scaling by the DPI is inconsistent with how Skia draws elsewhere 590ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com //SkScalar height = -(fRec.fTextSize * GetDeviceCaps(ddc, LOGPIXELSY) / 72); 591055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com LOGFONT lf = typeface->fLogFont; 592ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com lf.lfHeight = -gCanonicalTextSize; 59382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com lf.lfQuality = compute_quality(fRec); 594ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fFont = CreateFontIndirect(&lf); 5951dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 5961dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com // if we're rotated, or want fractional widths, create a hires font 5971dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com fHiResFont = 0; 598c84547a8d3cb04f0547db282b34e26abfbe64ec3bungeman@google.com if (needHiResMetrics(fRec.fPost2x2)) { 5991dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com lf.lfHeight = -HIRES_TEXTSIZE; 6001dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com fHiResFont = CreateFontIndirect(&lf); 6011dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 6021dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com fMat22Identity.eM11 = fMat22Identity.eM22 = SkFixedToFIXED(SK_Fixed1); 6031dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com fMat22Identity.eM12 = fMat22Identity.eM21 = SkFixedToFIXED(0); 6041dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 6051dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com // construct a matrix to go from HIRES logical units to our device units 6061dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com fRec.getSingleMatrix(&fHiResMatrix); 6071dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com SkScalar scale = SkScalarInvert(SkIntToScalar(HIRES_TEXTSIZE)); 6081dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com fHiResMatrix.preScale(scale, scale); 6091dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com } 610ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fSavefont = (HFONT)SelectObject(fDDC, fFont); 611a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 612a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (0 == GetTextMetrics(fDDC, &fTM)) { 613055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com call_ensure_accessible(lf); 614a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (0 == GetTextMetrics(fDDC, &fTM)) { 615a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fTM.tmPitchAndFamily = TMPF_TRUETYPE; 616a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 617a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 618a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com // Used a logfont on a memory context, should never get a device font. 61990b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com // Therefore all TMPF_DEVICE will be PostScript fonts. 62090b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com 62190b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com // If TMPF_VECTOR is set, one of TMPF_TRUETYPE or TMPF_DEVICE must be set, 62290b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com // otherwise we have a vector FON, which we don't support. 62390b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com // This was determined by testing with Type1 PFM/PFB and OpenTypeCFF OTF, 62490b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com // as well as looking at Wine bugs and sources. 62590b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com SkASSERT(!(fTM.tmPitchAndFamily & TMPF_VECTOR) || 62690b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com (fTM.tmPitchAndFamily & (TMPF_TRUETYPE | TMPF_DEVICE))); 62790b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com 628d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com XFORM xform; 62990b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com if (fTM.tmPitchAndFamily & TMPF_VECTOR) { 630a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com // Truetype or PostScript. 631a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com // Stroked FON also gets here (TMPF_VECTOR), but we don't handle it. 632a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fType = SkScalerContext_Windows::kTrueType_Type; 633a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fScale = fRec.fTextSize / gCanonicalTextSize; 634a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 635d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // fPost2x2 is column-major, left handed (y down). 636d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // XFORM 2x2 is row-major, left handed (y down). 637d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM11 = mul2float(fScale, fRec.fPost2x2[0][0]); 638d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM12 = mul2float(fScale, fRec.fPost2x2[1][0]); 639d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM21 = mul2float(fScale, fRec.fPost2x2[0][1]); 640d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM22 = mul2float(fScale, fRec.fPost2x2[1][1]); 641d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eDx = 0; 642d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eDy = 0; 643d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com 644d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // MAT2 is row major, right handed (y up). 645d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM11 = float2FIXED(xform.eM11); 646d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM12 = float2FIXED(-xform.eM12); 647d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM21 = float2FIXED(-xform.eM21); 648d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM22 = float2FIXED(xform.eM22); 649a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 650a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (needToRenderWithSkia(fRec)) { 651a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com this->forceGenerateImageFromPath(); 652a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 653a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 654a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } else { 655a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com // Assume bitmap 656a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fType = SkScalerContext_Windows::kBitmap_Type; 657a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fScale = SK_Scalar1; 658a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 659d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM11 = 1.0f; 660d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM12 = 0.0f; 661d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM21 = 0.0f; 662d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM22 = 1.0f; 663d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eDx = 0.0f; 664d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eDy = 0.0f; 665a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 666d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // fPost2x2 is column-major, left handed (y down). 667d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // MAT2 is row major, right handed (y up). 668a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fMat22.eM11 = SkScalarToFIXED(fRec.fPost2x2[0][0]); 669d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM12 = SkScalarToFIXED(-fRec.fPost2x2[1][0]); 670a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fMat22.eM21 = SkScalarToFIXED(-fRec.fPost2x2[0][1]); 671d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM22 = SkScalarToFIXED(fRec.fPost2x2[1][1]); 672a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 673a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com lf.lfHeight = -SkScalarCeilToInt(fRec.fTextSize); 674a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com HFONT bitmapFont = CreateFontIndirect(&lf); 675a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com SelectObject(fDDC, bitmapFont); 676a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com ::DeleteObject(fFont); 677a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fFont = bitmapFont; 678a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 679a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (0 == GetTextMetrics(fDDC, &fTM)) { 680055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com call_ensure_accessible(lf); 681a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com //if the following fails, we'll just draw at gCanonicalTextSize. 682a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com GetTextMetrics(fDDC, &fTM); 683a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 684a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com } 68599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 686d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fOffscreen.init(fFont, xform); 687ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 688ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 689ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comSkScalerContext_Windows::~SkScalerContext_Windows() { 690ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fDDC) { 691ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::SelectObject(fDDC, fSavefont); 692ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::DeleteDC(fDDC); 693ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 694ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fFont) { 695ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::DeleteObject(fFont); 696ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 6971dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com if (fHiResFont) { 6981dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com ::DeleteObject(fHiResFont); 6991dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com } 700ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fSC) { 701ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::ScriptFreeCache(&fSC); 702ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 703ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 704ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 705ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comunsigned SkScalerContext_Windows::generateGlyphCount() { 706ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fGlyphCount < 0) { 707a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (fType == SkScalerContext_Windows::kBitmap_Type) { 708a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com return fTM.tmLastChar; 709a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 710a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fGlyphCount = calculateOutlineGlyphCount(fDDC); 711ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 712ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return fGlyphCount; 713ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 714ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 715ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comuint16_t SkScalerContext_Windows::generateCharToGlyph(SkUnichar uni) { 716ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com uint16_t index = 0; 717ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com WCHAR c[2]; 718ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // TODO(ctguil): Support characters that generate more than one glyph. 719ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (SkUTF16_FromUnichar(uni, (uint16_t*)c) == 1) { 720ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Type1 fonts fail with uniscribe API. Use GetGlyphIndices for plane 0. 721ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkAssertResult(GetGlyphIndicesW(fDDC, c, 1, &index, 0)); 722ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 723ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Use uniscribe to detemine glyph index for non-BMP characters. 724ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Need to add extra item to SCRIPT_ITEM to work around a bug in older 725ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // windows versions. https://bugzilla.mozilla.org/show_bug.cgi?id=366643 726ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SCRIPT_ITEM si[2 + 1]; 727ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int items; 728ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkAssertResult( 729ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SUCCEEDED(ScriptItemize(c, 2, 2, NULL, NULL, si, &items))); 730ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 731ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com WORD log[2]; 732ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SCRIPT_VISATTR vsa; 733ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int glyphs; 734ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkAssertResult(SUCCEEDED(ScriptShape( 735ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fDDC, &fSC, c, 2, 1, &si[0].a, &index, log, &vsa, &glyphs))); 736ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 737ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return index; 738ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 739ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 740ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comvoid SkScalerContext_Windows::generateAdvance(SkGlyph* glyph) { 741ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com this->generateMetrics(glyph); 742ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 743ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 744ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comvoid SkScalerContext_Windows::generateMetrics(SkGlyph* glyph) { 745ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(fDDC); 746ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 747a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (fType == SkScalerContext_Windows::kBitmap_Type) { 748a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com SIZE size; 749a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com WORD glyphs = glyph->getGlyphID(0); 750a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (0 == GetTextExtentPointI(fDDC, &glyphs, 1, &size)) { 751a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fWidth = SkToS16(fTM.tmMaxCharWidth); 752a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } else { 753a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fWidth = SkToS16(size.cx); 754a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 755a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fHeight = SkToS16(size.cy); 756a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 757a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fTop = SkToS16(-fTM.tmAscent); 758a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fLeft = SkToS16(0); 759a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fAdvanceX = SkIntToFixed(glyph->fWidth); 760a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fAdvanceY = 0; 761a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 762d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // Apply matrix to advance. 763a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fAdvanceY = SkFixedMul(SkFIXEDToFixed(fMat22.eM21), glyph->fAdvanceX); 764a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fAdvanceX = SkFixedMul(SkFIXEDToFixed(fMat22.eM11), glyph->fAdvanceX); 765a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 766a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com return; 767a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 768a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 769d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com UINT glyphId = glyph->getGlyphID(0); 770d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com 771ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com GLYPHMETRICS gm; 7721dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com sk_bzero(&gm, sizeof(gm)); 773ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 774d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com DWORD status = GetGlyphOutlineW(fDDC, glyphId, GGO_METRICS | GGO_GLYPH_INDEX, &gm, 0, NULL, &fMat22); 775d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (GDI_ERROR == status) { 776055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com LogFontTypeface::EnsureAccessible(this->getTypeface()); 777d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com status = GetGlyphOutlineW(fDDC, glyphId, GGO_METRICS | GGO_GLYPH_INDEX, &gm, 0, NULL, &fMat22); 778d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (GDI_ERROR == status) { 779d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->zeroMetrics(); 780d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com return; 781d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 78239698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 783ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 784d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com bool empty = false; 785d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // The black box is either the embedded bitmap size or the outline extent. 786d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // It is 1x1 if nothing is to be drawn, but will also be 1x1 if something very small 787d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // is to be drawn, like a '.'. We need to outset '.' but do not wish to outset ' '. 788d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (1 == gm.gmBlackBoxX && 1 == gm.gmBlackBoxY) { 789d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // If GetGlyphOutline with GGO_NATIVE returns 0, we know there was no outline. 790d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com DWORD bufferSize = GetGlyphOutlineW(fDDC, glyphId, GGO_NATIVE | GGO_GLYPH_INDEX, &gm, 0, NULL, &fMat22); 791d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com empty = (0 == bufferSize); 792d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 7931dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 794d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fTop = SkToS16(-gm.gmptGlyphOrigin.y); 795d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fLeft = SkToS16(gm.gmptGlyphOrigin.x); 796d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (empty) { 797d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fWidth = 0; 798d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fHeight = 0; 799ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 800d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // Outset, since the image may bleed out of the black box. 801d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // For embedded bitmaps the black box should be exact. 802d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // For outlines we need to outset by 1 in all directions for bleed. 803d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // For ClearType we need to outset by 2 for bleed. 804d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fWidth = gm.gmBlackBoxX + 4; 805d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fHeight = gm.gmBlackBoxY + 4; 806d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fTop -= 2; 807d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fLeft -= 2; 808d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 809d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fAdvanceX = SkIntToFixed(gm.gmCellIncX); 810d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fAdvanceY = SkIntToFixed(gm.gmCellIncY); 811d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fRsbDelta = 0; 812d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fLsbDelta = 0; 813d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com 814d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (fHiResFont) { 815d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SelectObject(fDDC, fHiResFont); 816d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com sk_bzero(&gm, sizeof(gm)); 817d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com status = GetGlyphOutlineW(fDDC, glyphId, GGO_METRICS | GGO_GLYPH_INDEX, &gm, 0, NULL, &fMat22Identity); 818d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (GDI_ERROR != status) { 819d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkPoint advance; 820d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fHiResMatrix.mapXY(SkIntToScalar(gm.gmCellIncX), SkIntToScalar(gm.gmCellIncY), &advance); 821d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fAdvanceX = SkScalarToFixed(advance.fX); 822d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fAdvanceY = SkScalarToFixed(advance.fY); 823d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 824d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SelectObject(fDDC, fFont); 825ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 826ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 827ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 828ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comvoid SkScalerContext_Windows::generateFontMetrics(SkPaint::FontMetrics* mx, SkPaint::FontMetrics* my) { 82960af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com if (!(mx || my)) { 830ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return; 83160af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com } 83260af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com 83360af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com if (mx) { 83460af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com sk_bzero(mx, sizeof(*mx)); 83560af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com } 83660af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com if (my) { 83760af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com sk_bzero(my, sizeof(*my)); 83860af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com } 839ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 840ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(fDDC); 841ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 842a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (fType == SkScalerContext_Windows::kBitmap_Type) { 843a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (mx) { 844a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com mx->fTop = SkIntToScalar(-fTM.tmAscent); 845a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com mx->fAscent = SkIntToScalar(-fTM.tmAscent); 846a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com mx->fDescent = -SkIntToScalar(fTM.tmDescent); 847a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com mx->fBottom = SkIntToScalar(fTM.tmDescent); 84860af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com mx->fLeading = SkIntToScalar(fTM.tmExternalLeading); 849a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 850a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 851a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (my) { 852a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com my->fTop = SkIntToScalar(-fTM.tmAscent); 853a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com my->fAscent = SkIntToScalar(-fTM.tmAscent); 854a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com my->fDescent = SkIntToScalar(-fTM.tmDescent); 855a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com my->fBottom = SkIntToScalar(fTM.tmDescent); 85660af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com my->fLeading = SkIntToScalar(fTM.tmExternalLeading); 85760af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com my->fAvgCharWidth = SkIntToScalar(fTM.tmAveCharWidth); 858a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 859a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com return; 860a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 861a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 862ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com OUTLINETEXTMETRIC otm; 863ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 864ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com uint32_t ret = GetOutlineTextMetrics(fDDC, sizeof(otm), &otm); 86539698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (GDI_ERROR == ret) { 866055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com LogFontTypeface::EnsureAccessible(this->getTypeface()); 86739698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com ret = GetOutlineTextMetrics(fDDC, sizeof(otm), &otm); 86839698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 869ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (sizeof(otm) != ret) { 870a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com return; 871ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 872ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 873ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (mx) { 87460af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com mx->fTop = -fScale * otm.otmrcFontBox.left; 8755aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org mx->fAscent = -fScale * otm.otmAscent; 8765aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org mx->fDescent = -fScale * otm.otmDescent; 87760af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com mx->fBottom = fScale * otm.otmrcFontBox.right; 87860af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com mx->fLeading = fScale * otm.otmLineGap; 879ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 880ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 881ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (my) { 88260af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com my->fTop = -fScale * otm.otmrcFontBox.top; 8835aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org my->fAscent = -fScale * otm.otmAscent; 8845aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org my->fDescent = -fScale * otm.otmDescent; 88594b366a3e8ed7f03b4417f45999572399e6e591creed@google.com my->fBottom = -fScale * otm.otmrcFontBox.bottom; 88660af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com my->fLeading = fScale * otm.otmLineGap; 88760af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com my->fAvgCharWidth = fScale * otm.otmTextMetrics.tmAveCharWidth; 88860af92cb6de814b14ee5d40b71bfbd79227597ecreed@google.com my->fXHeight = fScale * otm.otmsXHeight; 889ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 890ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 891ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 8927430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com//////////////////////////////////////////////////////////////////////////////////////// 8937430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com 8947430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.comstatic void build_power_table(uint8_t table[], float ee) { 8957430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com for (int i = 0; i < 256; i++) { 8967430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com float x = i / 255.f; 89797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com x = sk_float_pow(x, ee); 8987430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com int xx = SkScalarRound(SkFloatToScalar(x * 255)); 8997430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com table[i] = SkToU8(xx); 9007430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com } 9017430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com} 9027430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com 90397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com/** 90497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * This will invert the gamma applied by GDI (gray-scale antialiased), so we 90597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * can get linear values. 90697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * 90797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * GDI grayscale appears to use a hard-coded gamma of 2.3. 90897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * 90997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * GDI grayscale appears to draw using the black and white rasterizer at four 91097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * times the size and then downsamples to compute the coverage mask. As a 91197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * result there are only seventeen total grays. This lack of fidelity means 91297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * that shifting into other color spaces is imprecise. 91397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com */ 91497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic const uint8_t* getInverseGammaTableGDI() { 91505a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Since build_power_table is idempotent, many threads can build gTableGdi 91605a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // simultaneously. 91705a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com 91805a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Microsoft Specific: 91905a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Making gInited volatile provides read-aquire and write-release in vc++. 92005a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // In VS2012, see compiler option /volatile:(ms|iso). 92105a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Replace with C++11 atomics when possible. 92205a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com static volatile bool gInited; 92397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com static uint8_t gTableGdi[256]; 92405a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com if (gInited) { 92505a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Need a L/L (read) barrier (full acquire not needed). If gInited is observed 92605a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // true then gTableGdi is observable, but it must be requested. 92705a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com } else { 92897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com build_power_table(gTableGdi, 2.3f); 92905a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Need a S/S (write) barrier (full release not needed) here so that this 93005a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // write to gInited becomes observable after gTableGdi. 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() { 94405a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // We don't expect SPI_GETFONTSMOOTHINGCONTRAST to ever change, so building 94505a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // gTableClearType with build_power_table is effectively idempotent. 94605a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com 94705a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Microsoft Specific: 94805a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Making gInited volatile provides read-aquire and write-release in vc++. 94905a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // In VS2012, see compiler option /volatile:(ms|iso). 95005a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Replace with C++11 atomics when possible. 95105a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com static volatile bool gInited; 95297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com static uint8_t gTableClearType[256]; 95305a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com if (gInited) { 95405a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Need a L/L (read) barrier (acquire not needed). If gInited is observed 95505a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // true then gTableClearType is observable, but it must be requested. 95605a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com } else { 9577430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com UINT level = 0; 9587430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com if (!SystemParametersInfo(SPI_GETFONTSMOOTHINGCONTRAST, 0, &level, 0) || !level) { 9597430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com // can't get the data, so use a default 9607430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com level = 1400; 9617430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com } 96297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com build_power_table(gTableClearType, level / 1000.0f); 96305a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Need a S/S (write) barrier (release not needed) here so that this 96405a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // write to gInited becomes observable after gTableClearType. 9657430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com gInited = true; 9667430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com } 96797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com return gTableClearType; 9687430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com} 9697430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com 970ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkColorPriv.h" 971ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 9726385314686875ecb484d95b33fcbf08890b5144dbungeman@google.com//Cannot assume that the input rgb is gray due to possible setting of kGenA8FromLCD_Flag. 97397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 97497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic inline uint8_t rgb_to_a8(SkGdiRGB rgb, const uint8_t* table8) { 9756385314686875ecb484d95b33fcbf08890b5144dbungeman@google.com U8CPU r = (rgb >> 16) & 0xFF; 9766385314686875ecb484d95b33fcbf08890b5144dbungeman@google.com U8CPU g = (rgb >> 8) & 0xFF; 9776385314686875ecb484d95b33fcbf08890b5144dbungeman@google.com U8CPU b = (rgb >> 0) & 0xFF; 9781bfe01d06b896eca94c80d9af9a6bb30216b5e42bungeman@google.com return sk_apply_lut_if<APPLY_PREBLEND>(SkComputeLuminance(r, g, b), table8); 97982a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com} 98082a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 98197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 98297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic inline uint16_t rgb_to_lcd16(SkGdiRGB rgb, const uint8_t* tableR, 98397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableG, 98497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableB) { 98597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU r = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 16) & 0xFF, tableR); 98697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU g = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 8) & 0xFF, tableG); 98797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU b = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 0) & 0xFF, tableB); 98897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com return SkPack888ToRGB16(r, g, b); 989ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 990ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 99197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 99297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic inline SkPMColor rgb_to_lcd32(SkGdiRGB rgb, const uint8_t* tableR, 99397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableG, 99497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableB) { 99597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU r = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 16) & 0xFF, tableR); 99697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU g = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 8) & 0xFF, tableG); 99797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU b = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 0) & 0xFF, tableB); 99897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com return SkPackARGB32(0xFF, r, g, b); 999754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com} 1000754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com 100182cff020b7e055f2d01686f060a884df842306edreed@google.com// Is this GDI color neither black nor white? If so, we have to keep this 100282cff020b7e055f2d01686f060a884df842306edreed@google.com// image as is, rather than smashing it down to a BW mask. 100382cff020b7e055f2d01686f060a884df842306edreed@google.com// 100482cff020b7e055f2d01686f060a884df842306edreed@google.com// returns int instead of bool, since we don't want/have to pay to convert 100582cff020b7e055f2d01686f060a884df842306edreed@google.com// the zero/non-zero value into a bool 100682cff020b7e055f2d01686f060a884df842306edreed@google.comstatic int is_not_black_or_white(SkGdiRGB c) { 100782cff020b7e055f2d01686f060a884df842306edreed@google.com // same as (but faster than) 100882cff020b7e055f2d01686f060a884df842306edreed@google.com // c &= 0x00FFFFFF; 100982cff020b7e055f2d01686f060a884df842306edreed@google.com // return 0 == c || 0x00FFFFFF == c; 101082cff020b7e055f2d01686f060a884df842306edreed@google.com return (c + (c & 1)) & 0x00FFFFFF; 10115e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 10125e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 10135e2df64215f12660ab26b96816f40ad8e32bf16freed@google.comstatic bool is_rgb_really_bw(const SkGdiRGB* src, int width, int height, int srcRB) { 10145e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int y = 0; y < height; ++y) { 10155e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int x = 0; x < width; ++x) { 101682cff020b7e055f2d01686f060a884df842306edreed@google.com if (is_not_black_or_white(src[x])) { 10175e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com return false; 10185e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 10195e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 102005a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com src = SkTAddOffset<const SkGdiRGB>(src, srcRB); 10215e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 10225e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com return true; 10235e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 10245e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 102597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com// gdi's bitmap is upside-down, so we reverse dst walking in Y 102697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com// whenever we copy it into skia's buffer 10275e2df64215f12660ab26b96816f40ad8e32bf16freed@google.comstatic void rgb_to_bw(const SkGdiRGB* SK_RESTRICT src, size_t srcRB, 102897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const SkGlyph& glyph) { 10295e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const int width = glyph.fWidth; 10305e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const size_t dstRB = (width + 7) >> 3; 10315e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com uint8_t* SK_RESTRICT dst = (uint8_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 10325e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 10335e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com int byteCount = width >> 3; 10345e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com int bitCount = width & 7; 10355e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 10365e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com // adjust srcRB to skip the values in our byteCount loop, 10375e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com // since we increment src locally there 10385e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com srcRB -= byteCount * 8 * sizeof(SkGdiRGB); 10395e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 10405e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int y = 0; y < glyph.fHeight; ++y) { 10415e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com if (byteCount > 0) { 10425e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int i = 0; i < byteCount; ++i) { 10437a230142e01c5a8cf955be12a5f287589b551634reed@google.com unsigned byte = 0; 104497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[0] & (1 << 7); 104597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[1] & (1 << 6); 104697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[2] & (1 << 5); 104797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[3] & (1 << 4); 104897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[4] & (1 << 3); 104997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[5] & (1 << 2); 105097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[6] & (1 << 1); 105197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[7] & (1 << 0); 10526a8f14d9633b330fb8051581828a0aaf4403d1a9reed@google.com dst[i] = byte; 10535e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com src += 8; 10545e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 10555e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 10565e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com if (bitCount > 0) { 10575e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com unsigned byte = 0; 10585e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com unsigned mask = 0x80; 10595e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int i = 0; i < bitCount; i++) { 106097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[i] & mask; 10615e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com mask >>= 1; 10625e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 10635e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com dst[byteCount] = byte; 10645e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 106505a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com src = SkTAddOffset<const SkGdiRGB>(src, srcRB); 10665e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com dst -= dstRB; 10675e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 10685e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 10695e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 107097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 10715e2df64215f12660ab26b96816f40ad8e32bf16freed@google.comstatic void rgb_to_a8(const SkGdiRGB* SK_RESTRICT src, size_t srcRB, 107297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const SkGlyph& glyph, const uint8_t* table8) { 10735e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const size_t dstRB = glyph.rowBytes(); 10745e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const int width = glyph.fWidth; 10755e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com uint8_t* SK_RESTRICT dst = (uint8_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 10765e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 10775e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int y = 0; y < glyph.fHeight; y++) { 10785e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int i = 0; i < width; i++) { 107997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com dst[i] = rgb_to_a8<APPLY_PREBLEND>(src[i], table8); 10805e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 108105a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com src = SkTAddOffset<const SkGdiRGB>(src, srcRB); 10825e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com dst -= dstRB; 10835e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 10845e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 10855e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 108697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 108797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic void rgb_to_lcd16(const SkGdiRGB* SK_RESTRICT src, size_t srcRB, const SkGlyph& glyph, 108897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableR, const uint8_t* tableG, const uint8_t* tableB) { 10895e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const size_t dstRB = glyph.rowBytes(); 10905e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const int width = glyph.fWidth; 10915e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com uint16_t* SK_RESTRICT dst = (uint16_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 10925e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 10935e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int y = 0; y < glyph.fHeight; y++) { 10945e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int i = 0; i < width; i++) { 109597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com dst[i] = rgb_to_lcd16<APPLY_PREBLEND>(src[i], tableR, tableG, tableB); 10965e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 109705a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com src = SkTAddOffset<const SkGdiRGB>(src, srcRB); 10985e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com dst = (uint16_t*)((char*)dst - dstRB); 10995e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 11005e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 11015e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 110297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 110397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic void rgb_to_lcd32(const SkGdiRGB* SK_RESTRICT src, size_t srcRB, const SkGlyph& glyph, 110497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableR, const uint8_t* tableG, const uint8_t* tableB) { 1105754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com const size_t dstRB = glyph.rowBytes(); 1106754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com const int width = glyph.fWidth; 110797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com uint32_t* SK_RESTRICT dst = (uint32_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 1108754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com 1109754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com for (int y = 0; y < glyph.fHeight; y++) { 1110754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com for (int i = 0; i < width; i++) { 111197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com dst[i] = rgb_to_lcd32<APPLY_PREBLEND>(src[i], tableR, tableG, tableB); 1112754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } 111305a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com src = SkTAddOffset<const SkGdiRGB>(src, srcRB); 111497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com dst = (uint32_t*)((char*)dst - dstRB); 1115754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } 1116754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com} 1117754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com 11186f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.comstatic inline unsigned clamp255(unsigned x) { 11196f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com SkASSERT(x <= 256); 11206f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com return x - (x >> 8); 11216f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com} 11226f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com 1123a76de72a6036da0a6b051b14411b80941971f881bungeman@google.comvoid SkScalerContext_Windows::generateImage(const SkGlyph& glyph) { 1124ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(fDDC); 1125ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 11266271117d826098c1399cf7442f8eea2d665cb78areed@google.com const bool isBW = SkMask::kBW_Format == fRec.fMaskFormat; 112782a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com const bool isAA = !isLCD(fRec); 112882a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 112999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com size_t srcRB; 113097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const void* bits = fOffscreen.draw(glyph, isBW, &srcRB); 113139698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (NULL == bits) { 1132055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com LogFontTypeface::EnsureAccessible(this->getTypeface()); 113397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com bits = fOffscreen.draw(glyph, isBW, &srcRB); 113439698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (NULL == bits) { 113539698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com sk_bzero(glyph.fImage, glyph.computeImageSize()); 113639698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com return; 113739698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 113882a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com } 113982a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 114097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com if (!isBW) { 11411bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com const uint8_t* table; 11421bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com //The offscreen contains a GDI blit if isAA and kGenA8FromLCD_Flag is not set. 11431bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com //Otherwise the offscreen contains a ClearType blit. 11441bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com if (isAA && !(fRec.fFlags & SkScalerContext::kGenA8FromLCD_Flag)) { 11451bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com table = getInverseGammaTableGDI(); 11461bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com } else { 11471bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com table = getInverseGammaTableClearType(); 114897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } 114997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //Note that the following cannot really be integrated into the 115097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //pre-blend, since we may not be applying the pre-blend; when we aren't 115197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //applying the pre-blend it means that a filter wants linear anyway. 115297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //Other code may also be applying the pre-blend, so we'd need another 115397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //one with this and one without. 11546f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com SkGdiRGB* addr = (SkGdiRGB*)bits; 11556f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com for (int y = 0; y < glyph.fHeight; ++y) { 11566f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com for (int x = 0; x < glyph.fWidth; ++x) { 11576f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com int r = (addr[x] >> 16) & 0xFF; 11586f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com int g = (addr[x] >> 8) & 0xFF; 11596f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com int b = (addr[x] >> 0) & 0xFF; 11607430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com addr[x] = (table[r] << 16) | (table[g] << 8) | table[b]; 11616f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com } 116205a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com addr = SkTAddOffset<SkGdiRGB>(addr, srcRB); 11636f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com } 11646f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com } 11656f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com 116682a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com int width = glyph.fWidth; 116782a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com size_t dstRB = glyph.rowBytes(); 116882a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com if (isBW) { 116982a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com const uint8_t* src = (const uint8_t*)bits; 117082a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com uint8_t* dst = (uint8_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 117182a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com for (int y = 0; y < glyph.fHeight; y++) { 117282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com memcpy(dst, src, dstRB); 117382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com src += srcRB; 117482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com dst -= dstRB; 1175ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 117682a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com } else if (isAA) { 11776f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com // since the caller may require A8 for maskfilters, we can't check for BW 11786f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com // ... until we have the caller tell us that explicitly 11795e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const SkGdiRGB* src = (const SkGdiRGB*)bits; 1180a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com if (fPreBlend.isApplicable()) { 1181a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com rgb_to_a8<true>(src, srcRB, glyph, fPreBlend.fG); 118297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } else { 1183a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com rgb_to_a8<false>(src, srcRB, glyph, fPreBlend.fG); 118497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } 118582a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com } else { // LCD16 11865e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const SkGdiRGB* src = (const SkGdiRGB*)bits; 11875e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com if (is_rgb_really_bw(src, width, glyph.fHeight, srcRB)) { 118897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com rgb_to_bw(src, srcRB, glyph); 11895e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com ((SkGlyph*)&glyph)->fMaskFormat = SkMask::kBW_Format; 11905e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } else { 1191754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com if (SkMask::kLCD16_Format == glyph.fMaskFormat) { 1192a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com if (fPreBlend.isApplicable()) { 1193a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com rgb_to_lcd16<true>(src, srcRB, glyph, 1194a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com fPreBlend.fR, fPreBlend.fG, fPreBlend.fB); 119597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } else { 1196a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com rgb_to_lcd16<false>(src, srcRB, glyph, 1197a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com fPreBlend.fR, fPreBlend.fG, fPreBlend.fB); 119897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } 1199754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } else { 1200754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com SkASSERT(SkMask::kLCD32_Format == glyph.fMaskFormat); 1201a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com if (fPreBlend.isApplicable()) { 1202a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com rgb_to_lcd32<true>(src, srcRB, glyph, 1203a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com fPreBlend.fR, fPreBlend.fG, fPreBlend.fB); 120497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } else { 1205a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com rgb_to_lcd32<false>(src, srcRB, glyph, 1206a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com fPreBlend.fR, fPreBlend.fG, fPreBlend.fB); 120797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } 1208754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } 1209ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1210ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1211ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1212ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1213ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comvoid SkScalerContext_Windows::generatePath(const SkGlyph& glyph, SkPath* path) { 1214ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(&glyph && path); 1215ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(fDDC); 1216ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1217ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com path->reset(); 1218ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1219ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com GLYPHMETRICS gm; 122005a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com 122105a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Out of all the fonts on a typical Windows box, 122205a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // 25% of glyphs require more than 2KB. 122305a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // 1% of glyphs require more than 4KB. 122405a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // 0.01% of glyphs require more than 8KB. 122505a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // 8KB is less than 1% of the normal 1MB stack on Windows. 122605a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // Note that some web fonts glyphs require more than 20KB. 122705a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com static const uint16_t BUFFERSIZE = (1 << 13); 122805a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com SkAutoSTMalloc<BUFFERSIZE, uint8_t> glyphbuf(BUFFERSIZE); 122905a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com 123005a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com const UINT flags = GGO_NATIVE | GGO_GLYPH_INDEX; 123105a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com DWORD total_size = GetGlyphOutlineW(fDDC, glyph.fID, flags, &gm, BUFFERSIZE, glyphbuf, &fMat22); 123239698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (GDI_ERROR == total_size) { 123305a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // GDI_ERROR because the BUFFERSIZE was too small, or because the data was not accessible. 123405a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // When the data is not accessable GetGlyphOutlineW fails rather quickly, 123505a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com // so just try to get the size. If that fails then ensure the data is accessible. 123605a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com total_size = GetGlyphOutlineW(fDDC, glyph.fID, flags, &gm, 0, NULL, &fMat22); 1237d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (GDI_ERROR == total_size) { 123805a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com LogFontTypeface::EnsureAccessible(this->getTypeface()); 123905a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com total_size = GetGlyphOutlineW(fDDC, glyph.fID, flags, &gm, 0, NULL, &fMat22); 124005a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com if (GDI_ERROR == total_size) { 124105a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com SkASSERT(false); 124205a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com return; 124305a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com } 124405a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com } 124505a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com 124605a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com glyphbuf.reset(total_size); 124705a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com 124805a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com DWORD ret = GetGlyphOutlineW(fDDC, glyph.fID, flags, &gm, total_size, glyphbuf, &fMat22); 124905a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com if (GDI_ERROR == ret) { 125005a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com LogFontTypeface::EnsureAccessible(this->getTypeface()); 125105a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com ret = GetGlyphOutlineW(fDDC, glyph.fID, flags, &gm, total_size, glyphbuf, &fMat22); 125205a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com if (GDI_ERROR == ret) { 125305a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com SkASSERT(false); 125405a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com return; 125505a729ff90f75ac013873742ee0e4ae7e5e6e415bungeman@google.com } 1256d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 125739698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 1258ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1259d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const uint8_t* cur_glyph = glyphbuf; 1260d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const uint8_t* end_glyph = glyphbuf + total_size; 1261ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1262d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com while (cur_glyph < end_glyph) { 1263d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const TTPOLYGONHEADER* th = (TTPOLYGONHEADER*)cur_glyph; 1264ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1265d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const uint8_t* end_poly = cur_glyph + th->cb; 1266d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const uint8_t* cur_poly = cur_glyph + sizeof(TTPOLYGONHEADER); 1267ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1268d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com path->moveTo(SkFixedToScalar( SkFIXEDToFixed(th->pfxStart.x)), 1269d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(th->pfxStart.y))); 1270ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1271d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com while (cur_poly < end_poly) { 1272d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const TTPOLYCURVE* pc = (const TTPOLYCURVE*)cur_poly; 1273ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1274d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (pc->wType == TT_PRIM_LINE) { 1275d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com for (uint16_t i = 0; i < pc->cpfx; i++) { 1276d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com path->lineTo(SkFixedToScalar( SkFIXEDToFixed(pc->apfx[i].x)), 1277d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(pc->apfx[i].y))); 1278ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1279d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 1280ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1281d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (pc->wType == TT_PRIM_QSPLINE) { 1282d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com for (uint16_t u = 0; u < pc->cpfx - 1; u++) { // Walk through points in spline 1283d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com POINTFX pnt_b = pc->apfx[u]; // B is always the current point 1284d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com POINTFX pnt_c = pc->apfx[u+1]; 1285ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1286d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (u < pc->cpfx - 2) { // If not on last spline, compute C 1287d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com pnt_c.x = SkFixedToFIXED(SkFixedAve(SkFIXEDToFixed(pnt_b.x), 1288d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFIXEDToFixed(pnt_c.x))); 1289d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com pnt_c.y = SkFixedToFIXED(SkFixedAve(SkFIXEDToFixed(pnt_b.y), 1290d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFIXEDToFixed(pnt_c.y))); 1291ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1292d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com 1293d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com path->quadTo(SkFixedToScalar( SkFIXEDToFixed(pnt_b.x)), 1294d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(pnt_b.y)), 1295d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFixedToScalar( SkFIXEDToFixed(pnt_c.x)), 1296d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(pnt_c.y))); 1297ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1298ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1299d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // Advance past this TTPOLYCURVE. 1300d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com cur_poly += sizeof(WORD) * 2 + sizeof(POINTFX) * pc->cpfx; 1301ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1302d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com cur_glyph += th->cb; 1303d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com path->close(); 1304ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1305ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1306ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1307484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comstatic void logfont_for_name(const char* familyName, LOGFONT* lf) { 1308484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com sk_bzero(lf, sizeof(LOGFONT)); 1309e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com#ifdef UNICODE 1310484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com // Get the buffer size needed first. 1311484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com size_t str_len = ::MultiByteToWideChar(CP_UTF8, 0, familyName, 1312484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com -1, NULL, 0); 1313484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com // Allocate a buffer (str_len already has terminating null 1314484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com // accounted for). 1315484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com wchar_t *wideFamilyName = new wchar_t[str_len]; 1316484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com // Now actually convert the string. 1317484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ::MultiByteToWideChar(CP_UTF8, 0, familyName, -1, 1318484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com wideFamilyName, str_len); 1319484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ::wcsncpy(lf->lfFaceName, wideFamilyName, LF_FACESIZE - 1); 1320484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com delete [] wideFamilyName; 1321484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com lf->lfFaceName[LF_FACESIZE-1] = L'\0'; 1322e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com#else 1323484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ::strncpy(lf->lfFaceName, familyName, LF_FACESIZE - 1); 1324484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com lf->lfFaceName[LF_FACESIZE - 1] = '\0'; 1325e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com#endif 1326e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com} 1327e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com 13285526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.comvoid LogFontTypeface::onGetFontDescriptor(SkFontDescriptor* desc, 13295526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.com bool* isLocalStream) const { 13307103f182ce61280eacb35f1832df350b642a5381bungeman@google.com // Get the actual name of the typeface. The logfont may not know this. 13315526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.com HFONT font = CreateFontIndirect(&fLogFont); 13327103f182ce61280eacb35f1832df350b642a5381bungeman@google.com 13337103f182ce61280eacb35f1832df350b642a5381bungeman@google.com HDC deviceContext = ::CreateCompatibleDC(NULL); 13347103f182ce61280eacb35f1832df350b642a5381bungeman@google.com HFONT savefont = (HFONT)SelectObject(deviceContext, font); 13357103f182ce61280eacb35f1832df350b642a5381bungeman@google.com 13367103f182ce61280eacb35f1832df350b642a5381bungeman@google.com int fontNameLen; //length of fontName in TCHARS. 13377103f182ce61280eacb35f1832df350b642a5381bungeman@google.com if (0 == (fontNameLen = GetTextFace(deviceContext, 0, NULL))) { 13385526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.com call_ensure_accessible(fLogFont); 13397103f182ce61280eacb35f1832df350b642a5381bungeman@google.com if (0 == (fontNameLen = GetTextFace(deviceContext, 0, NULL))) { 13407103f182ce61280eacb35f1832df350b642a5381bungeman@google.com fontNameLen = 0; 13417103f182ce61280eacb35f1832df350b642a5381bungeman@google.com } 13427103f182ce61280eacb35f1832df350b642a5381bungeman@google.com } 13437103f182ce61280eacb35f1832df350b642a5381bungeman@google.com 13447103f182ce61280eacb35f1832df350b642a5381bungeman@google.com SkAutoSTArray<LF_FULLFACESIZE, TCHAR> fontName(fontNameLen+1); 13457103f182ce61280eacb35f1832df350b642a5381bungeman@google.com if (0 == GetTextFace(deviceContext, fontNameLen, fontName.get())) { 13465526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.com call_ensure_accessible(fLogFont); 13477103f182ce61280eacb35f1832df350b642a5381bungeman@google.com if (0 == GetTextFace(deviceContext, fontNameLen, fontName.get())) { 13487103f182ce61280eacb35f1832df350b642a5381bungeman@google.com fontName[0] = 0; 13497103f182ce61280eacb35f1832df350b642a5381bungeman@google.com } 13507103f182ce61280eacb35f1832df350b642a5381bungeman@google.com } 13517103f182ce61280eacb35f1832df350b642a5381bungeman@google.com 13527103f182ce61280eacb35f1832df350b642a5381bungeman@google.com if (deviceContext) { 13537103f182ce61280eacb35f1832df350b642a5381bungeman@google.com ::SelectObject(deviceContext, savefont); 13547103f182ce61280eacb35f1832df350b642a5381bungeman@google.com ::DeleteDC(deviceContext); 13557103f182ce61280eacb35f1832df350b642a5381bungeman@google.com } 13567103f182ce61280eacb35f1832df350b642a5381bungeman@google.com if (font) { 13577103f182ce61280eacb35f1832df350b642a5381bungeman@google.com ::DeleteObject(font); 13587103f182ce61280eacb35f1832df350b642a5381bungeman@google.com } 13597103f182ce61280eacb35f1832df350b642a5381bungeman@google.com 1360e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com SkString familyName; 13617103f182ce61280eacb35f1832df350b642a5381bungeman@google.com tchar_to_skstring(fontName.get(), &familyName); 1362e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com 13635526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.com desc->setFamilyName(familyName.c_str()); 13645526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.com *isLocalStream = this->fSerializeAsStream; 1365ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1366ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1367ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic bool getWidthAdvance(HDC hdc, int gId, int16_t* advance) { 1368ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Initialize the MAT2 structure to the identify transformation matrix. 1369ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com static const MAT2 mat2 = {SkScalarToFIXED(1), SkScalarToFIXED(0), 1370ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkScalarToFIXED(0), SkScalarToFIXED(1)}; 1371ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int flags = GGO_METRICS | GGO_GLYPH_INDEX; 1372ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com GLYPHMETRICS gm; 1373ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (GDI_ERROR == GetGlyphOutline(hdc, gId, flags, &gm, 0, NULL, &mat2)) { 1374ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return false; 1375ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1376ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(advance); 1377ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com *advance = gm.gmCellIncX; 1378ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return true; 1379ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1380ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 13812689f615e364dc48ad73826564f5b13d2329179dreed@google.comSkAdvancedTypefaceMetrics* LogFontTypeface::onGetAdvancedTypefaceMetrics( 138237ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org SkAdvancedTypefaceMetrics::PerGlyphInfo perGlyphInfo, 138337ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org const uint32_t* glyphIDs, 13842689f615e364dc48ad73826564f5b13d2329179dreed@google.com uint32_t glyphIDsCount) const { 13852689f615e364dc48ad73826564f5b13d2329179dreed@google.com LOGFONT lf = fLogFont; 1386ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkAdvancedTypefaceMetrics* info = NULL; 1387ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1388ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HDC hdc = CreateCompatibleDC(NULL); 1389ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT font = CreateFontIndirect(&lf); 1390ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT savefont = (HFONT)SelectObject(hdc, font); 1391ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT designFont = NULL; 1392ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 139305b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com const char stem_chars[] = {'i', 'I', '!', '1'}; 139405b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com int16_t min_width; 139505b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com unsigned glyphCount; 139605b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com 1397ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // To request design units, create a logical font whose height is specified 1398ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // as unitsPerEm. 1399ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com OUTLINETEXTMETRIC otm; 140039698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com unsigned int otmRet = GetOutlineTextMetrics(hdc, sizeof(otm), &otm); 140139698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (0 == otmRet) { 1402055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com call_ensure_accessible(lf); 140339698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com otmRet = GetOutlineTextMetrics(hdc, sizeof(otm), &otm); 140439698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 140539698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (!otmRet || !GetTextFace(hdc, LF_FACESIZE, lf.lfFaceName)) { 1406ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com goto Error; 1407ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1408ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com lf.lfHeight = -SkToS32(otm.otmEMSquare); 1409ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com designFont = CreateFontIndirect(&lf); 1410ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SelectObject(hdc, designFont); 1411ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (!GetOutlineTextMetrics(hdc, sizeof(otm), &otm)) { 1412ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com goto Error; 1413ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1414a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyphCount = calculateOutlineGlyphCount(hdc); 1415ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1416ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info = new SkAdvancedTypefaceMetrics; 1417ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fEmSize = otm.otmEMSquare; 1418ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fMultiMaster = false; 1419ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fLastGlyphID = SkToU16(glyphCount - 1); 1420ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle = 0; 14217103f182ce61280eacb35f1832df350b642a5381bungeman@google.com tchar_to_skstring(lf.lfFaceName, &info->fFontName); 1422ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 14236744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org if (perGlyphInfo & SkAdvancedTypefaceMetrics::kToUnicode_PerGlyphInfo) { 14246744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org populate_glyph_to_unicode(hdc, glyphCount, &(info->fGlyphToUnicode)); 14256744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 14266744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 1427d41e70de196e78e21e1001d23a7259785cbd0835vandebo@chromium.org if (glyphCount > 0 && 1428d41e70de196e78e21e1001d23a7259785cbd0835vandebo@chromium.org (otm.otmTextMetrics.tmPitchAndFamily & TMPF_TRUETYPE)) { 1429ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fType = SkAdvancedTypefaceMetrics::kTrueType_Font; 1430ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 1431ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fType = SkAdvancedTypefaceMetrics::kOther_Font; 1432ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fItalicAngle = 0; 1433ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fAscent = 0; 1434ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fDescent = 0; 1435ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStemV = 0; 1436ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fCapHeight = 0; 1437ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fBBox = SkIRect::MakeEmpty(); 1438390c6d7a9018e233a6519397ac6c739fb21a99efedisonn@google.com goto ReturnInfo; 1439ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 14405aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org 1441ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // If this bit is clear the font is a fixed pitch font. 1442ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (!(otm.otmTextMetrics.tmPitchAndFamily & TMPF_FIXED_PITCH)) { 1443ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kFixedPitch_Style; 1444ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1445ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (otm.otmTextMetrics.tmItalic) { 1446ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kItalic_Style; 1447ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1448ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (otm.otmTextMetrics.tmPitchAndFamily & FF_ROMAN) { 1449ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kSerif_Style; 1450ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else if (otm.otmTextMetrics.tmPitchAndFamily & FF_SCRIPT) { 1451ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kScript_Style; 1452ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1453ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1454ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // The main italic angle of the font, in tenths of a degree counterclockwise 1455ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // from vertical. 1456ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fItalicAngle = otm.otmItalicAngle / 10; 1457ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fAscent = SkToS16(otm.otmTextMetrics.tmAscent); 1458ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fDescent = SkToS16(-otm.otmTextMetrics.tmDescent); 1459ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // TODO(ctguil): Use alternate cap height calculation. 1460ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // MSDN says otmsCapEmHeight is not support but it is returning a value on 1461ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // my Win7 box. 1462ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fCapHeight = otm.otmsCapEmHeight; 1463ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fBBox = 1464ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkIRect::MakeLTRB(otm.otmrcFontBox.left, otm.otmrcFontBox.top, 1465ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com otm.otmrcFontBox.right, otm.otmrcFontBox.bottom); 1466ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1467ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Figure out a good guess for StemV - Min width of i, I, !, 1. 1468ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // This probably isn't very good with an italic font. 146905b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com min_width = SHRT_MAX; 1470ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStemV = 0; 1471ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com for (size_t i = 0; i < SK_ARRAY_COUNT(stem_chars); i++) { 1472ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ABC abcWidths; 1473ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (GetCharABCWidths(hdc, stem_chars[i], stem_chars[i], &abcWidths)) { 1474ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int16_t width = abcWidths.abcB; 1475ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (width > 0 && width < min_width) { 1476ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com min_width = width; 1477ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStemV = min_width; 1478ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1479ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1480ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1481ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1482ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // If bit 1 is set, the font may not be embedded in a document. 1483ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // If bit 1 is clear, the font can be embedded. 1484ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // If bit 2 is set, the embedding is read-only. 1485ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (otm.otmfsType & 0x1) { 1486ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fType = SkAdvancedTypefaceMetrics::kNotEmbeddable_Font; 14870e6dc0a320985ffd31f77eed8a41e62132b9ba95ctguil@chromium.org } else if (perGlyphInfo & 14880e6dc0a320985ffd31f77eed8a41e62132b9ba95ctguil@chromium.org SkAdvancedTypefaceMetrics::kHAdvance_PerGlyphInfo) { 14895aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org if (info->fStyle & SkAdvancedTypefaceMetrics::kFixedPitch_Style) { 14905aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org appendRange(&info->fGlyphWidths, 0); 14915aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org info->fGlyphWidths->fAdvance.append(1, &min_width); 14925aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org finishRange(info->fGlyphWidths.get(), 0, 14935aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org SkAdvancedTypefaceMetrics::WidthRange::kDefault); 14945aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org } else { 14955aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org info->fGlyphWidths.reset( 149637ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org getAdvanceData(hdc, 149737ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org glyphCount, 149837ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org glyphIDs, 149937ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org glyphIDsCount, 150037ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org &getWidthAdvance)); 15015aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org } 1502ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1503ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1504ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comError: 1505390c6d7a9018e233a6519397ac6c739fb21a99efedisonn@google.comReturnInfo: 1506ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SelectObject(hdc, savefont); 1507ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteObject(designFont); 1508ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteObject(font); 1509ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteDC(hdc); 1510ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1511ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return info; 1512ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1513ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1514a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com//Dummy representation of a Base64 encoded GUID from create_unique_font_name. 1515a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#define BASE64_GUID_ID "XXXXXXXXXXXXXXXXXXXXXXXX" 1516a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com//Length of GUID representation from create_id, including NULL terminator. 1517a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#define BASE64_GUID_ID_LEN SK_ARRAY_COUNT(BASE64_GUID_ID) 1518a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1519a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comSK_COMPILE_ASSERT(BASE64_GUID_ID_LEN < LF_FACESIZE, GUID_longer_than_facesize); 1520a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1521a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 1522a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com NameID 6 Postscript names cannot have the character '/'. 1523a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com It would be easier to hex encode the GUID, but that is 32 bytes, 1524a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com and many systems have issues with names longer than 28 bytes. 1525a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com The following need not be any standard base64 encoding. 1526a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com The encoded value is never decoded. 1527a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com*/ 1528d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.comstatic const char postscript_safe_base64_encode[] = 1529a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com "ABCDEFGHIJKLMNOPQRSTUVWXYZ" 1530a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com "abcdefghijklmnopqrstuvwxyz" 1531a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com "0123456789-_="; 1532a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1533a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 1534a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com Formats a GUID into Base64 and places it into buffer. 1535a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com buffer should have space for at least BASE64_GUID_ID_LEN characters. 1536a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com The string will always be null terminated. 1537a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com XXXXXXXXXXXXXXXXXXXXXXXX0 1538a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 1539a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comstatic void format_guid_b64(const GUID& guid, char* buffer, size_t bufferSize) { 1540a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com SkASSERT(bufferSize >= BASE64_GUID_ID_LEN); 1541a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com size_t written = SkBase64::Encode(&guid, sizeof(guid), buffer, postscript_safe_base64_encode); 1542a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com SkASSERT(written < LF_FACESIZE); 1543a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com buffer[written] = '\0'; 1544a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com} 1545a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1546a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 1547a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com Creates a Base64 encoded GUID and places it into buffer. 1548a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com buffer should have space for at least BASE64_GUID_ID_LEN characters. 1549a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com The string will always be null terminated. 1550a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com XXXXXXXXXXXXXXXXXXXXXXXX0 1551a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 1552a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comstatic HRESULT create_unique_font_name(char* buffer, size_t bufferSize) { 1553a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com GUID guid = {}; 1554a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com if (FAILED(CoCreateGuid(&guid))) { 1555a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return E_UNEXPECTED; 1556a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1557a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com format_guid_b64(guid, buffer, bufferSize); 1558a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1559a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return S_OK; 1560a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com} 1561a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1562a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 1563a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com Introduces a font to GDI. On failure will return NULL. The returned handle 1564a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com should eventually be passed to RemoveFontMemResourceEx. 1565a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com*/ 1566a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comstatic HANDLE activate_font(SkData* fontData) { 1567a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com DWORD numFonts = 0; 1568a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com //AddFontMemResourceEx just copies the data, but does not specify const. 1569a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com HANDLE fontHandle = AddFontMemResourceEx(const_cast<void*>(fontData->data()), 1570a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com fontData->size(), 1571a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 0, 1572a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com &numFonts); 1573a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1574a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com if (fontHandle != NULL && numFonts < 1) { 1575a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com RemoveFontMemResourceEx(fontHandle); 1576a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return NULL; 1577a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1578a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1579a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return fontHandle; 1580a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com} 1581a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1582437eea160b2f605d9074106891288e85baaecfefreed@google.comstatic SkTypeface* create_from_stream(SkStream* stream) { 1583a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Create a unique and unpredictable font name. 1584a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Avoids collisions and access from CSS. 1585a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com char familyName[BASE64_GUID_ID_LEN]; 1586a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com const int familyNameSize = SK_ARRAY_COUNT(familyName); 1587a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com if (FAILED(create_unique_font_name(familyName, familyNameSize))) { 1588a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return NULL; 1589a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1590d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com 1591a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Change the name of the font. 1592e9bbee397ce96aa6642a42823feb1d7c4a8ffd8bbungeman@google.com SkAutoTUnref<SkData> rewrittenFontData(SkOTUtils::RenameFont(stream, familyName, familyNameSize-1)); 1593e9bbee397ce96aa6642a42823feb1d7c4a8ffd8bbungeman@google.com if (NULL == rewrittenFontData.get()) { 1594a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return NULL; 1595a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1596ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1597a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Register the font with GDI. 1598e9bbee397ce96aa6642a42823feb1d7c4a8ffd8bbungeman@google.com HANDLE fontReference = activate_font(rewrittenFontData.get()); 1599a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com if (NULL == fontReference) { 1600a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return NULL; 1601a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1602a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1603a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Create the typeface. 1604a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com LOGFONT lf; 1605484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com logfont_for_name(familyName, &lf); 1606a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1607a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return SkCreateFontMemResourceTypefaceFromLOGFONT(lf, fontReference); 1608ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1609ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1610437eea160b2f605d9074106891288e85baaecfefreed@google.comSkTypeface* SkFontHost::CreateTypefaceFromStream(SkStream* stream) { 1611437eea160b2f605d9074106891288e85baaecfefreed@google.com return create_from_stream(stream); 1612437eea160b2f605d9074106891288e85baaecfefreed@google.com} 1613437eea160b2f605d9074106891288e85baaecfefreed@google.com 16140042b9c2a2e6fe954cdfbcd5a5b7449cdf41a4c3reed@google.comSkStream* LogFontTypeface::onOpenStream(int* ttcIndex) const { 16150042b9c2a2e6fe954cdfbcd5a5b7449cdf41a4c3reed@google.com *ttcIndex = 0; 16160042b9c2a2e6fe954cdfbcd5a5b7449cdf41a4c3reed@google.com 1617f4c2622a1a3489988f2d85a81fdc132b17a92bddctguil@chromium.org const DWORD kTTCTag = 1618f4c2622a1a3489988f2d85a81fdc132b17a92bddctguil@chromium.org SkEndian_SwapBE32(SkSetFourByteTag('t', 't', 'c', 'f')); 16190042b9c2a2e6fe954cdfbcd5a5b7449cdf41a4c3reed@google.com LOGFONT lf = fLogFont; 1620ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1621ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HDC hdc = ::CreateCompatibleDC(NULL); 162259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com HFONT font = CreateFontIndirect(&lf); 1623ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT savefont = (HFONT)SelectObject(hdc, font); 1624ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1625d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org SkMemoryStream* stream = NULL; 1626d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org DWORD tables[2] = {kTTCTag, 0}; 1627d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org for (int i = 0; i < SK_ARRAY_COUNT(tables); i++) { 1628d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org size_t bufferSize = GetFontData(hdc, tables[i], 0, NULL, 0); 162939698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (bufferSize == GDI_ERROR) { 1630055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com call_ensure_accessible(lf); 163139698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com bufferSize = GetFontData(hdc, tables[i], 0, NULL, 0); 163239698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 1633d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org if (bufferSize != GDI_ERROR) { 1634d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org stream = new SkMemoryStream(bufferSize); 1635d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org if (GetFontData(hdc, tables[i], 0, (void*)stream->getMemoryBase(), 1636d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org bufferSize)) { 1637d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org break; 1638d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org } else { 1639d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org delete stream; 1640d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org stream = NULL; 1641d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org } 1642d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org } 1643ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1644ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1645ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SelectObject(hdc, savefont); 1646ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteObject(font); 1647ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteDC(hdc); 1648ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1649ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return stream; 1650ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1651ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 16520da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.comSkScalerContext* LogFontTypeface::onCreateScalerContext(const SkDescriptor* desc) const { 16530da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.com return SkNEW_ARGS(SkScalerContext_Windows, (const_cast<LogFontTypeface*>(this), desc)); 1654ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1655ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1656ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com/** Return the closest matching typeface given either an existing family 1657ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com (specified by a typeface in that family) or by a familyName, and a 1658ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com requested style. 165990d812b77ab025d5fd01dab904287f5c5bf56228bungeman@google.com 1) If familyFace is null, use familyName. 166090d812b77ab025d5fd01dab904287f5c5bf56228bungeman@google.com 2) If familyName is null, use familyFace. 1661ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 3) If both are null, return the default font that best matches style 1662ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com This MUST not return NULL. 1663ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com */ 1664ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1665ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comSkTypeface* SkFontHost::CreateTypeface(const SkTypeface* familyFace, 1666ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com const char familyName[], 1667ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkTypeface::Style style) { 166859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LOGFONT lf; 1669ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (NULL == familyFace && NULL == familyName) { 167059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf = get_default_font(); 167159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } else if (familyFace) { 167259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LogFontTypeface* face = (LogFontTypeface*)familyFace; 167359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf = face->fLogFont; 1674ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 1675484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com logfont_for_name(familyName, &lf); 1676ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 167759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com setStyle(&lf, style); 167859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com return SkCreateTypefaceFromLOGFONT(lf); 1679ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1680ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1681ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comSkTypeface* SkFontHost::CreateTypefaceFromFile(const char path[]) { 1682f381162e5616daacdbcc06d693aca5111aeeebe8mike@reedtribe.org SkAutoTUnref<SkStream> stream(SkStream::NewFromFile(path)); 1683f381162e5616daacdbcc06d693aca5111aeeebe8mike@reedtribe.org return stream.get() ? CreateTypefaceFromStream(stream) : NULL; 1684ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1685ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 16860da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.comvoid LogFontTypeface::onFilterRec(SkScalerContextRec* rec) const { 1687c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org if (rec->fFlags & SkScalerContext::kLCD_BGROrder_Flag || 1688c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org rec->fFlags & SkScalerContext::kLCD_Vertical_Flag) 1689c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org { 1690c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org rec->fMaskFormat = SkMask::kA8_Format; 1691c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org rec->fFlags |= SkScalerContext::kGenA8FromLCD_Flag; 1692c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org } 1693c5fd46171841711973b9433c726ff8608335940ccommit-bot@chromium.org 1694e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com unsigned flagsWeDontSupport = SkScalerContext::kDevKernText_Flag | 1695e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kAutohinting_Flag | 1696e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kEmbeddedBitmapText_Flag | 1697e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kEmbolden_Flag | 1698c84547a8d3cb04f0547db282b34e26abfbe64ec3bungeman@google.com SkScalerContext::kSubpixelPositioning_Flag | 1699e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kLCD_BGROrder_Flag | 1700e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kLCD_Vertical_Flag; 1701e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com rec->fFlags &= ~flagsWeDontSupport; 1702e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com 1703e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkPaint::Hinting h = rec->getHinting(); 1704da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com 1705da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com // I think we can support no-hinting, if we get hires outlines and just 1706da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com // use skia to rasterize into a gray-scale mask... 1707da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com#if 0 1708e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com switch (h) { 1709e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kNo_Hinting: 1710e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kSlight_Hinting: 1711e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com h = SkPaint::kNo_Hinting; 1712e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com break; 1713e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kNormal_Hinting: 1714e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kFull_Hinting: 1715e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com h = SkPaint::kNormal_Hinting; 1716e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com break; 1717e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com default: 17180c00f21fee3f5cfa3aa7e5d46ff94cb8cf340451tomhudson@google.com SkDEBUGFAIL("unknown hinting"); 1719e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com } 1720da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com#else 1721da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com h = SkPaint::kNormal_Hinting; 1722da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com#endif 1723e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com rec->setHinting(h); 1724da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com 17259181aa84aa288d2bc3ab079b6b40a79ac87d8807reed@google.com// turn this off since GDI might turn A8 into BW! Need a bigger fix. 17269181aa84aa288d2bc3ab079b6b40a79ac87d8807reed@google.com#if 0 1727da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com // Disable LCD when rotated, since GDI's output is ugly 1728da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com if (isLCD(*rec) && !isAxisAligned(*rec)) { 1729da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com rec->fMaskFormat = SkMask::kA8_Format; 1730da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com } 17319181aa84aa288d2bc3ab079b6b40a79ac87d8807reed@google.com#endif 1732754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com 17330da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.com if (!fCanBeLCD && isLCD(*rec)) { 1734cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com rec->fMaskFormat = SkMask::kA8_Format; 1735cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com rec->fFlags &= ~SkScalerContext::kGenA8FromLCD_Flag; 1736754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } 1737754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com} 1738070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.com 1739070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.com/////////////////////////////////////////////////////////////////////////////// 1740070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.com 1741070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.com#include "SkFontMgr.h" 1742484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com#include "SkDataTable.h" 1743484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 1744484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comstatic bool valid_logfont_for_enum(const LOGFONT& lf, DWORD fontType) { 1745484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return TRUETYPE_FONTTYPE == fontType 1746484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com && lf.lfFaceName[0] 1747484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com && lf.lfFaceName[0] != '@' 1748484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com && OUT_STROKE_PRECIS == lf.lfOutPrecision 1749484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com // without the chraset check, we got LOTS of dups of the same font 1750484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com // is there a better check (other than searching the array for 1751484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com // the same name? 1752484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com && 0 == lf.lfCharSet 1753484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ; 1754484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com} 1755484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 1756484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comstatic int CALLBACK enum_fonts_proc(const LOGFONT* lf, const TEXTMETRIC*, 1757484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com DWORD fontType, LPARAM builderParam) { 1758484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com if (valid_logfont_for_enum(*lf, fontType)) { 1759a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com SkTDArray<ENUMLOGFONTEX>* array = (SkTDArray<ENUMLOGFONTEX>*)builderParam; 1760a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com *array->append() = *(ENUMLOGFONTEX*)lf; 1761484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 1762484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return 1; // non-zero means continue 1763484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com} 1764484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 1765484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comstatic SkFontStyle compute_fontstyle(const LOGFONT& lf) { 1766484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return SkFontStyle(lf.lfWeight, SkFontStyle::kNormal_Width, 1767484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com lf.lfItalic ? SkFontStyle::kItalic_Slant 1768484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com : SkFontStyle::kUpright_Slant); 1769484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com} 1770484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 1771484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comclass SkFontStyleSetGDI : public SkFontStyleSet { 1772484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.compublic: 1773a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com SkFontStyleSetGDI(const TCHAR familyName[]) { 1774484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com HDC hdc = ::CreateCompatibleDC(NULL); 1775a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com ::EnumFonts(hdc, familyName, enum_fonts_proc, (LPARAM)&fArray); 1776484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ::DeleteDC(hdc); 1777484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 1778484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 1779484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual int count() SK_OVERRIDE { 1780484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return fArray.count(); 1781484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 1782484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 1783484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual void getStyle(int index, SkFontStyle* fs, SkString* styleName) SK_OVERRIDE { 1784484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com if (fs) { 1785a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com *fs = compute_fontstyle(fArray[index].elfLogFont); 1786a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com } 1787a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com if (styleName) { 1788a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com const ENUMLOGFONTEX& ref = fArray[index]; 1789a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com // For some reason, ENUMLOGFONTEX and LOGFONT disagree on their type in the 1790a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com // non-unicode version. 1791a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com // ENUMLOGFONTEX uses BYTE 1792a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com // LOGFONT uses CHAR 1793a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com // Here we assert they that the style name is logically the same (size) as 1794a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com // a TCHAR, so we can use the same converter function. 1795a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com SkASSERT(sizeof(TCHAR) == sizeof(ref.elfStyle[0])); 1796a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com tchar_to_skstring((const TCHAR*)ref.elfStyle, styleName); 1797484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 1798484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 1799484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 1800484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual SkTypeface* createTypeface(int index) SK_OVERRIDE { 1801a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com return SkCreateTypefaceFromLOGFONT(fArray[index].elfLogFont); 1802484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 1803484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 1804484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual SkTypeface* matchStyle(const SkFontStyle& pattern) SK_OVERRIDE { 1805484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com // todo: 1806a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com return SkCreateTypefaceFromLOGFONT(fArray[0].elfLogFont); 1807484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 1808484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 1809484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comprivate: 1810a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com SkTDArray<ENUMLOGFONTEX> fArray; 1811484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com}; 1812484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 1813484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comstatic int CALLBACK enum_family_proc(const LOGFONT* lf, const TEXTMETRIC* tm, 1814484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com DWORD fontType, LPARAM builderParam) { 1815484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com if (valid_logfont_for_enum(*lf, fontType)) { 1816a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com SkTDArray<ENUMLOGFONTEX>* array = (SkTDArray<ENUMLOGFONTEX>*)builderParam; 1817a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com *array->append() = *(ENUMLOGFONTEX*)lf; 1818484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com#if 0 1819484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com SkString str; 1820484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com tchar_to_skstring(lf->lfFaceName, &str); 1821484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@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", 1822484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com str.c_str(), lf->lfHeight, lf->lfWidth, lf->lfEscapement, lf->lfOrientation, 1823484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com lf->lfWeight, lf->lfItalic, lf->lfCharSet, lf->lfClipPrecision, lf->lfQuality, 1824484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com lf->lfPitchAndFamily); 1825484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com#endif 1826484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 1827484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return 1; // non-zero means continue 1828484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com} 1829484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 1830484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comclass SkFontMgrGDI : public SkFontMgr { 1831484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com void init() { 1832484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com if (!fLogFontArray.isEmpty()) { 1833484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return; 1834484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 1835484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 1836484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com LOGFONT lf; 1837484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com sk_bzero(&lf, sizeof(lf)); 1838484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com lf.lfCharSet = DEFAULT_CHARSET; 1839484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 1840484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com HDC hdc = ::CreateCompatibleDC(NULL); 1841484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ::EnumFontFamiliesEx(hdc, &lf, enum_family_proc, (LPARAM)&fLogFontArray, 0); 1842484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ::DeleteDC(hdc); 1843484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 1844484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 1845484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.compublic: 1846484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com SkFontMgrGDI() {} 1847484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 1848484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comprotected: 1849484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual int onCountFamilies() SK_OVERRIDE { 1850484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com this->init(); 1851484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return fLogFontArray.count(); 1852484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 1853484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 1854484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual void onGetFamilyName(int index, SkString* familyName) SK_OVERRIDE { 1855484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com this->init(); 1856484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com SkASSERT((unsigned)index < (unsigned)fLogFontArray.count()); 1857a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com tchar_to_skstring(fLogFontArray[index].elfLogFont.lfFaceName, familyName); 1858484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 1859484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 1860484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual SkFontStyleSet* onCreateStyleSet(int index) SK_OVERRIDE { 1861484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com this->init(); 1862484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com SkASSERT((unsigned)index < (unsigned)fLogFontArray.count()); 1863a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com return SkNEW_ARGS(SkFontStyleSetGDI, (fLogFontArray[index].elfLogFont.lfFaceName)); 1864484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 1865484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 1866484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual SkFontStyleSet* onMatchFamily(const char familyName[]) SK_OVERRIDE { 1867484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com if (NULL == familyName) { 1868484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com familyName = ""; // do we need this check??? 1869484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 1870484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com LOGFONT lf; 1871484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com logfont_for_name(familyName, &lf); 1872a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com return SkNEW_ARGS(SkFontStyleSetGDI, (lf.lfFaceName)); 1873484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 1874484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 1875484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual SkTypeface* onMatchFamilyStyle(const char familyName[], 1876484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com const SkFontStyle& fontstyle) SK_OVERRIDE { 1877437eea160b2f605d9074106891288e85baaecfefreed@google.com // could be in base impl 1878484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com SkAutoTUnref<SkFontStyleSet> sset(this->matchFamily(familyName)); 1879484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return sset->matchStyle(fontstyle); 1880484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 1881484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 1882484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual SkTypeface* onMatchFaceStyle(const SkTypeface* familyMember, 1883484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com const SkFontStyle& fontstyle) SK_OVERRIDE { 1884437eea160b2f605d9074106891288e85baaecfefreed@google.com // could be in base impl 1885484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com SkString familyName; 1886484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com ((LogFontTypeface*)familyMember)->getFamilyName(&familyName); 1887484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return this->matchFamilyStyle(familyName.c_str(), fontstyle); 1888484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 1889484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 1890437eea160b2f605d9074106891288e85baaecfefreed@google.com virtual SkTypeface* onCreateFromStream(SkStream* stream, int ttcIndex) SK_OVERRIDE { 1891437eea160b2f605d9074106891288e85baaecfefreed@google.com return create_from_stream(stream); 1892484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 1893437eea160b2f605d9074106891288e85baaecfefreed@google.com 1894437eea160b2f605d9074106891288e85baaecfefreed@google.com virtual SkTypeface* onCreateFromData(SkData* data, int ttcIndex) SK_OVERRIDE { 1895437eea160b2f605d9074106891288e85baaecfefreed@google.com // could be in base impl 1896437eea160b2f605d9074106891288e85baaecfefreed@google.com SkAutoTUnref<SkStream> stream(SkNEW_ARGS(SkMemoryStream, (data))); 1897437eea160b2f605d9074106891288e85baaecfefreed@google.com return this->createFromStream(stream); 1898484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 1899437eea160b2f605d9074106891288e85baaecfefreed@google.com 1900484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com virtual SkTypeface* onCreateFromFile(const char path[], int ttcIndex) SK_OVERRIDE { 1901437eea160b2f605d9074106891288e85baaecfefreed@google.com // could be in base impl 1902437eea160b2f605d9074106891288e85baaecfefreed@google.com SkAutoTUnref<SkStream> stream(SkStream::NewFromFile(path)); 1903437eea160b2f605d9074106891288e85baaecfefreed@google.com return this->createFromStream(stream); 1904484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com } 1905484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com 1906484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.comprivate: 1907a65a681d43a8e9f5d8726a389832e957b07ee16breed@google.com SkTDArray<ENUMLOGFONTEX> fLogFontArray; 1908484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com}; 1909070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.com 1910070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.comSkFontMgr* SkFontMgr::Factory() { 1911484f5bcf07c965e84cf021a6272aff73e2d7c1ecreed@google.com return SkNEW(SkFontMgrGDI); 1912070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.com} 1913