SkFontHost_win.cpp revision fe74765f0d302669ae49e68074492bdfe0ce6e6f
1ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com 2ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com/* 3ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com * Copyright 2006 The Android Open Source Project 4ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com * 5ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com * Use of this source code is governed by a BSD-style license that can be 6ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com * found in the LICENSE file. 7ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com */ 8ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 9ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkAdvancedTypefaceMetrics.h" 10a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include "SkBase64.h" 111bfe01d06b896eca94c80d9af9a6bb30216b5e42bungeman@google.com#include "SkColorPriv.h" 12a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include "SkData.h" 13a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include "SkDescriptor.h" 14e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com#include "SkFontDescriptor.h" 15a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include "SkFontHost.h" 16bbe50131413098bffed9186660c41f047d881596bungeman@google.com#include "SkGlyph.h" 1797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com#include "SkMaskGamma.h" 18a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include "SkOTUtils.h" 1927889877c0e3c909dd4afd7b5e7b1d58cbf61ae6reed@google.com#include "SkPath.h" 20ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkStream.h" 21a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include "SkString.h" 22ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkThread.h" 23ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkTypeface_win.h" 2459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com#include "SkTypefaceCache.h" 25ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkUtils.h" 26ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 27a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include "SkTypes.h" 28a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include <tchar.h> 29a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include <usp10.h> 30a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include <objbase.h> 31ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 32f210f505ffffccc15ae5e91f8ccb9763ba7fc152reed@google.comstatic void (*gEnsureLOGFONTAccessibleProc)(const LOGFONT&); 33f210f505ffffccc15ae5e91f8ccb9763ba7fc152reed@google.com 34f210f505ffffccc15ae5e91f8ccb9763ba7fc152reed@google.comvoid SkTypeface_SetEnsureLOGFONTAccessibleProc(void (*proc)(const LOGFONT&)) { 35f210f505ffffccc15ae5e91f8ccb9763ba7fc152reed@google.com gEnsureLOGFONTAccessibleProc = proc; 36f210f505ffffccc15ae5e91f8ccb9763ba7fc152reed@google.com} 37f210f505ffffccc15ae5e91f8ccb9763ba7fc152reed@google.com 38055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.comstatic void call_ensure_accessible(const LOGFONT& lf) { 39055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com if (gEnsureLOGFONTAccessibleProc) { 40055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com gEnsureLOGFONTAccessibleProc(lf); 41055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com } 42055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com} 43055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com 44055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com/////////////////////////////////////////////////////////////////////////////// 45055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com 466f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com// always packed xxRRGGBB 476f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.comtypedef uint32_t SkGdiRGB; 486f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com 496f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.comtemplate <typename T> T* SkTAddByteOffset(T* ptr, size_t byteOffset) { 506f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com return (T*)((char*)ptr + byteOffset); 516f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com} 526f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com 53a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com// define this in your Makefile or .gyp to enforce AA requests 54a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com// which GDI ignores at small sizes. This flag guarantees AA 55a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com// for rotated text, regardless of GDI's notions. 56a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com//#define SK_ENFORCE_ROTATED_TEXT_AA_ON_WINDOWS 57a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 58ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com// client3d has to undefine this for now 59ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#define CAN_USE_LOGFONT_NAME 60ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 6182a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.comstatic bool isLCD(const SkScalerContext::Rec& rec) { 6282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com return SkMask::kLCD16_Format == rec.fMaskFormat || 6382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com SkMask::kLCD32_Format == rec.fMaskFormat; 6482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com} 6582a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 66a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.comstatic bool bothZero(SkScalar a, SkScalar b) { 67a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com return 0 == a && 0 == b; 68a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com} 69a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 70a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com// returns false if there is any non-90-rotation or skew 71a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.comstatic bool isAxisAligned(const SkScalerContext::Rec& rec) { 72a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com return 0 == rec.fPreSkewX && 73a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com (bothZero(rec.fPost2x2[0][1], rec.fPost2x2[1][0]) || 74a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com bothZero(rec.fPost2x2[0][0], rec.fPost2x2[1][1])); 75a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com} 76a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 77a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.comstatic bool needToRenderWithSkia(const SkScalerContext::Rec& rec) { 78a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com#ifdef SK_ENFORCE_ROTATED_TEXT_AA_ON_WINDOWS 79a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // What we really want to catch is when GDI will ignore the AA request and give 80a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // us BW instead. Smallish rotated text is one heuristic, so this code is just 81a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // an approximation. We shouldn't need to do this for larger sizes, but at those 82a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // sizes, the quality difference gets less and less between our general 83a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // scanconverter and GDI's. 84a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com if (SkMask::kA8_Format == rec.fMaskFormat && !isAxisAligned(rec)) { 85a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com return true; 86a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com } 87a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com#endif 88a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // false means allow GDI to generate the bits 89a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com return false; 90a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com} 91a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 92ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comusing namespace skia_advanced_typeface_metrics_utils; 93ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 94ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic const uint16_t BUFFERSIZE = (16384 - 32); 95ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic uint8_t glyphbuf[BUFFERSIZE]; 96ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 97ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com/** 985aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org * Since LOGFONT wants its textsize as an int, and we support fractional sizes, 99ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com * and since we have a cache of LOGFONTs for our tyepfaces, we always set the 100ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com * lfHeight to a canonical size, and then we use the 2x2 matrix to achieve the 101ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com * actual requested size. 102ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com */ 103ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic const int gCanonicalTextSize = 64; 104ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 105ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic void make_canonical(LOGFONT* lf) { 1065aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org lf->lfHeight = -gCanonicalTextSize; 10759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf->lfQuality = CLEARTYPE_QUALITY;//PROOF_QUALITY; 10859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf->lfCharSet = DEFAULT_CHARSET; 10982a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com// lf->lfClipPrecision = 64; 11059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com} 11159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 11290d812b77ab025d5fd01dab904287f5c5bf56228bungeman@google.comstatic SkTypeface::Style get_style(const LOGFONT& lf) { 11359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com unsigned style = 0; 11459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com if (lf.lfWeight >= FW_BOLD) { 11559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com style |= SkTypeface::kBold; 11659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } 11759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com if (lf.lfItalic) { 11859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com style |= SkTypeface::kItalic; 11959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } 12090d812b77ab025d5fd01dab904287f5c5bf56228bungeman@google.com return static_cast<SkTypeface::Style>(style); 12159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com} 12259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 12359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.comstatic void setStyle(LOGFONT* lf, SkTypeface::Style style) { 12459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf->lfWeight = (style & SkTypeface::kBold) != 0 ? FW_BOLD : FW_NORMAL ; 12559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf->lfItalic = ((style & SkTypeface::kItalic) != 0); 126ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 127ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 128ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic inline FIXED SkFixedToFIXED(SkFixed x) { 129ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return *(FIXED*)(&x); 130ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 131a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.comstatic inline SkFixed SkFIXEDToFixed(FIXED x) { 132a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com return *(SkFixed*)(&x); 133a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com} 134ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 135ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic inline FIXED SkScalarToFIXED(SkScalar x) { 136ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkFixedToFIXED(SkScalarToFixed(x)); 137ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 138ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 139a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.comstatic unsigned calculateOutlineGlyphCount(HDC hdc) { 140ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // The 'maxp' table stores the number of glyphs at offset 4, in 2 bytes. 141f4c2622a1a3489988f2d85a81fdc132b17a92bddctguil@chromium.org const DWORD maxpTag = 142f4c2622a1a3489988f2d85a81fdc132b17a92bddctguil@chromium.org SkEndian_SwapBE32(SkSetFourByteTag('m', 'a', 'x', 'p')); 143ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com uint16_t glyphs; 144ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (GetFontData(hdc, maxpTag, 4, &glyphs, sizeof(glyphs)) != GDI_ERROR) { 145ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkEndian_SwapBE16(glyphs); 146ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1475aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org 148ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Binary search for glyph count. 149ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com static const MAT2 mat2 = {{0, 1}, {0, 0}, {0, 0}, {0, 1}}; 150ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int32_t max = SK_MaxU16 + 1; 151ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int32_t min = 0; 152ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com GLYPHMETRICS gm; 153ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com while (min < max) { 154ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int32_t mid = min + ((max - min) / 2); 155ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (GetGlyphOutlineW(hdc, mid, GGO_METRICS | GGO_GLYPH_INDEX, &gm, 0, 156ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com NULL, &mat2) == GDI_ERROR) { 157ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com max = mid; 158ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 159ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com min = mid + 1; 160ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 161ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 162ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(min == max); 163ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return min; 164ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 165ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 166ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comclass LogFontTypeface : public SkTypeface { 167ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.compublic: 168cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com LogFontTypeface(SkTypeface::Style style, SkFontID fontID, const LOGFONT& lf, bool serializeAsStream = false) : 169cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com SkTypeface(style, fontID, false), fLogFont(lf), fSerializeAsStream(serializeAsStream) { 170cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com 171cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com // If the font has cubic outlines, it will not be rendered with ClearType. 172cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com HFONT font = CreateFontIndirect(&lf); 173cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com 174cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com HDC deviceContext = ::CreateCompatibleDC(NULL); 175cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com HFONT savefont = (HFONT)SelectObject(deviceContext, font); 176cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com 177cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com TEXTMETRIC textMetric; 178cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com if (0 == GetTextMetrics(deviceContext, &textMetric)) { 179055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com call_ensure_accessible(lf); 180cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com if (0 == GetTextMetrics(deviceContext, &textMetric)) { 181cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com textMetric.tmPitchAndFamily = TMPF_TRUETYPE; 182cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com } 183cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com } 184cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com if (deviceContext) { 185cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com ::SelectObject(deviceContext, savefont); 186cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com ::DeleteDC(deviceContext); 187cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com } 188cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com if (font) { 189cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com ::DeleteObject(font); 190cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com } 191cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com 192fe74765f0d302669ae49e68074492bdfe0ce6e6fbungeman@google.com // The fixed pitch bit is set if the font is *not* fixed pitch. 193fe74765f0d302669ae49e68074492bdfe0ce6e6fbungeman@google.com this->setIsFixedPitch((textMetric.tmPitchAndFamily & TMPF_FIXED_PITCH) == 0); 194fe74765f0d302669ae49e68074492bdfe0ce6e6fbungeman@google.com 195cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com // Used a logfont on a memory context, should never get a device font. 196cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com // Therefore all TMPF_DEVICE will be PostScript (cubic) fonts. 197cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com fCanBeLCD = !((textMetric.tmPitchAndFamily & TMPF_VECTOR) && 198cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com (textMetric.tmPitchAndFamily & TMPF_DEVICE)); 199cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com } 200ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 20159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LOGFONT fLogFont; 202e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com bool fSerializeAsStream; 203cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com bool fCanBeLCD; 204ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 20559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com static LogFontTypeface* Create(const LOGFONT& lf) { 20690d812b77ab025d5fd01dab904287f5c5bf56228bungeman@google.com SkTypeface::Style style = get_style(lf); 20759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com SkFontID fontID = SkTypefaceCache::NewFontID(); 20859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com return new LogFontTypeface(style, fontID, lf); 209ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 2100da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.com 211055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com static void EnsureAccessible(const SkTypeface* face) { 212055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com call_ensure_accessible(static_cast<const LogFontTypeface*>(face)->fLogFont); 213055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com } 214055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com 2150da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.comprotected: 2160042b9c2a2e6fe954cdfbcd5a5b7449cdf41a4c3reed@google.com virtual SkStream* onOpenStream(int* ttcIndex) const SK_OVERRIDE; 2170da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.com virtual SkScalerContext* onCreateScalerContext(const SkDescriptor*) const SK_OVERRIDE; 2180da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.com virtual void onFilterRec(SkScalerContextRec*) const SK_OVERRIDE; 2192689f615e364dc48ad73826564f5b13d2329179dreed@google.com virtual SkAdvancedTypefaceMetrics* onGetAdvancedTypefaceMetrics( 2202689f615e364dc48ad73826564f5b13d2329179dreed@google.com SkAdvancedTypefaceMetrics::PerGlyphInfo, 2212689f615e364dc48ad73826564f5b13d2329179dreed@google.com const uint32_t*, uint32_t) const SK_OVERRIDE; 2225526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.com virtual void onGetFontDescriptor(SkFontDescriptor*, bool*) const SK_OVERRIDE; 223ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com}; 224ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 225a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comclass FontMemResourceTypeface : public LogFontTypeface { 226a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.compublic: 227a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com /** 228a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com * Takes ownership of fontMemResource. 229a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 230a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com FontMemResourceTypeface(SkTypeface::Style style, SkFontID fontID, const LOGFONT& lf, HANDLE fontMemResource) : 231cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com LogFontTypeface(style, fontID, lf, true), fFontMemResource(fontMemResource) { 232e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com } 233a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 234a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com HANDLE fFontMemResource; 235a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 236a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com /** 237a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com * The created FontMemResourceTypeface takes ownership of fontMemResource. 238a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 239a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com static FontMemResourceTypeface* Create(const LOGFONT& lf, HANDLE fontMemResource) { 240a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com SkTypeface::Style style = get_style(lf); 241a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com SkFontID fontID = SkTypefaceCache::NewFontID(); 242a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return new FontMemResourceTypeface(style, fontID, lf, fontMemResource); 243a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 244a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 245a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comprotected: 246a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com virtual void weak_dispose() const SK_OVERRIDE { 247a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com RemoveFontMemResourceEx(fFontMemResource); 248a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com //SkTypefaceCache::Remove(this); 249a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com INHERITED::weak_dispose(); 250a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 251a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 252a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comprivate: 253a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com typedef LogFontTypeface INHERITED; 254a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com}; 255a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 256ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic const LOGFONT& get_default_font() { 257ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com static LOGFONT gDefaultFont; 258ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return gDefaultFont; 259ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 260ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 26159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.comstatic bool FindByLogFont(SkTypeface* face, SkTypeface::Style requestedStyle, void* ctx) { 262a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com LogFontTypeface* lface = static_cast<LogFontTypeface*>(face); 26359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com const LOGFONT* lf = reinterpret_cast<const LOGFONT*>(ctx); 264ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 265a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return lface && 266a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com get_style(lface->fLogFont) == requestedStyle && 26759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com !memcmp(&lface->fLogFont, lf, sizeof(LOGFONT)); 26859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com} 26959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 27059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com/** 27159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com * This guy is public. It first searches the cache, and if a match is not found, 27259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com * it creates a new face. 27359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com */ 27459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.comSkTypeface* SkCreateTypefaceFromLOGFONT(const LOGFONT& origLF) { 27559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LOGFONT lf = origLF; 27659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com make_canonical(&lf); 277ee51d1a6e43615ae640410013c36d2d9873e6aa5bungeman@google.com SkTypeface* face = SkTypefaceCache::FindByProcAndRef(FindByLogFont, &lf); 278ee51d1a6e43615ae640410013c36d2d9873e6aa5bungeman@google.com if (NULL == face) { 27959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com face = LogFontTypeface::Create(lf); 28090d812b77ab025d5fd01dab904287f5c5bf56228bungeman@google.com SkTypefaceCache::Add(face, get_style(lf)); 28159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } 28259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com return face; 283ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 284ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 285db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com/** 286a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com * The created SkTypeface takes ownership of fontMemResource. 287a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 288a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comSkTypeface* SkCreateFontMemResourceTypefaceFromLOGFONT(const LOGFONT& origLF, HANDLE fontMemResource) { 289a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com LOGFONT lf = origLF; 290a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com make_canonical(&lf); 291a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com FontMemResourceTypeface* face = FontMemResourceTypeface::Create(lf, fontMemResource); 292a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com SkTypefaceCache::Add(face, get_style(lf), false); 293a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return face; 294a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com} 295a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 296a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 297db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com * This guy is public 298db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com */ 299db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.comvoid SkLOGFONTFromTypeface(const SkTypeface* face, LOGFONT* lf) { 300db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com if (NULL == face) { 301db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com *lf = get_default_font(); 302db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com } else { 303a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com *lf = static_cast<const LogFontTypeface*>(face)->fLogFont; 304db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com } 305db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com} 306db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com 3070da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.comSkTypeface* SkFontHost::NextLogicalTypeface(SkFontID currFontID, SkFontID origFontID) { 308ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Zero means that we don't have any fallback fonts for this fontID. 309ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // This function is implemented on Android, but doesn't have much 310ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // meaning here. 3110da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.com return NULL; 312ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 313ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 31459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.comstatic void GetLogFontByID(SkFontID fontID, LOGFONT* lf) { 315a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com LogFontTypeface* face = static_cast<LogFontTypeface*>(SkTypefaceCache::FindByID(fontID)); 31659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com if (face) { 31759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com *lf = face->fLogFont; 31859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } else { 31959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com sk_bzero(lf, sizeof(LOGFONT)); 32059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } 32159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com} 32259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 3236744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// Construct Glyph to Unicode table. 3246744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// Unicode code points that require conjugate pairs in utf16 are not 3256744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// supported. 3266744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// TODO(arthurhsu): Add support for conjugate pairs. It looks like that may 3276744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// require parsing the TTF cmap table (platform 4, encoding 12) directly instead 3286744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// of calling GetFontUnicodeRange(). 3296744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.orgstatic void populate_glyph_to_unicode(HDC fontHdc, const unsigned glyphCount, 3306744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkTDArray<SkUnichar>* glyphToUnicode) { 3316744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org DWORD glyphSetBufferSize = GetFontUnicodeRanges(fontHdc, NULL); 3326744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org if (!glyphSetBufferSize) { 3336744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org return; 3346744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 3356744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 3366744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkAutoTDeleteArray<BYTE> glyphSetBuffer(new BYTE[glyphSetBufferSize]); 3376744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org GLYPHSET* glyphSet = 3386744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org reinterpret_cast<LPGLYPHSET>(glyphSetBuffer.get()); 3396744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org if (GetFontUnicodeRanges(fontHdc, glyphSet) != glyphSetBufferSize) { 3406744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org return; 3416744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 3426744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 3436744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org glyphToUnicode->setCount(glyphCount); 3446744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org memset(glyphToUnicode->begin(), 0, glyphCount * sizeof(SkUnichar)); 3456744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org for (DWORD i = 0; i < glyphSet->cRanges; ++i) { 3466744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // There is no guarantee that within a Unicode range, the corresponding 3476744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // glyph id in a font file are continuous. So, even if we have ranges, 3486744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // we can't just use the first and last entry of the range to compute 3496744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // result. We need to enumerate them one by one. 3506744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org int count = glyphSet->ranges[i].cGlyphs; 3516744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkAutoTArray<WCHAR> chars(count + 1); 3526744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org chars[count] = 0; // termintate string 3536744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkAutoTArray<WORD> glyph(count); 3546744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org for (USHORT j = 0; j < count; ++j) { 3556744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org chars[j] = glyphSet->ranges[i].wcLow + j; 3566744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 3576744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org GetGlyphIndicesW(fontHdc, chars.get(), count, glyph.get(), 3586744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org GGI_MARK_NONEXISTING_GLYPHS); 3596744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // If the glyph ID is valid, and the glyph is not mapped, then we will 3606744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // fill in the char id into the vector. If the glyph is mapped already, 3616744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // skip it. 3626744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // TODO(arthurhsu): better improve this. e.g. Get all used char ids from 3636744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // font cache, then generate this mapping table from there. It's 3646744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // unlikely to have collisions since glyph reuse happens mostly for 3656744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // different Unicode pages. 3666744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org for (USHORT j = 0; j < count; ++j) { 3676744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org if (glyph[j] != 0xffff && glyph[j] < glyphCount && 3686744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org (*glyphToUnicode)[glyph[j]] == 0) { 3696744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org (*glyphToUnicode)[glyph[j]] = chars[j]; 3706744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 3716744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 3726744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 3736744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org} 3746744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 37599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com////////////////////////////////////////////////////////////////////////////////////// 37699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 37799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.comstatic int alignTo32(int n) { 37899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com return (n + 31) & ~31; 37999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com} 38099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 38199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.comstruct MyBitmapInfo : public BITMAPINFO { 38299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com RGBQUAD fMoreSpaceForColors[1]; 38399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com}; 38499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 38599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.comclass HDCOffscreen { 38699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.compublic: 38799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HDCOffscreen() { 38899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fFont = 0; 38999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fDC = 0; 39099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fBM = 0; 39199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fBits = NULL; 39299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fWidth = fHeight = 0; 39399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fIsBW = false; 39499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 39599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 39699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com ~HDCOffscreen() { 39799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (fDC) { 39899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com DeleteDC(fDC); 39999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 40099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (fBM) { 40199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com DeleteObject(fBM); 40299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 40399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 40499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 40599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com void init(HFONT font, const XFORM& xform) { 40699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fFont = font; 40799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fXform = xform; 40899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 40999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 41097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const void* draw(const SkGlyph&, bool isBW, size_t* srcRBPtr); 41199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 41299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.comprivate: 41399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HDC fDC; 41499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HBITMAP fBM; 41599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HFONT fFont; 41699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com XFORM fXform; 41799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com void* fBits; // points into fBM 41899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com int fWidth; 41999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com int fHeight; 42099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com bool fIsBW; 421754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com 422754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com enum { 423754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com // will always trigger us to reset the color, since we 4246f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com // should only store 0 or 0x00FFFFFF or gray (0x007F7F7F) 425754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com kInvalid_Color = 12345 426754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com }; 42799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com}; 42899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 429754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.comconst void* HDCOffscreen::draw(const SkGlyph& glyph, bool isBW, 43097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com size_t* srcRBPtr) { 43199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (0 == fDC) { 43299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fDC = CreateCompatibleDC(0); 43399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (0 == fDC) { 43499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com return NULL; 43599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 43699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SetGraphicsMode(fDC, GM_ADVANCED); 43799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SetBkMode(fDC, TRANSPARENT); 43899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SetTextAlign(fDC, TA_LEFT | TA_BASELINE); 43999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SelectObject(fDC, fFont); 44097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com 44197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com COLORREF color = 0x00FFFFFF; 442b58a639b2fbe919489654bb506efdb024a308a8ebsalomon@google.com SkDEBUGCODE(COLORREF prev =) SetTextColor(fDC, color); 44397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com SkASSERT(prev != CLR_INVALID); 44499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 44599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 44699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (fBM && (fIsBW != isBW || fWidth < glyph.fWidth || fHeight < glyph.fHeight)) { 44799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com DeleteObject(fBM); 44899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fBM = 0; 44999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 450754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com fIsBW = isBW; 45199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 45299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fWidth = SkMax32(fWidth, glyph.fWidth); 45399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fHeight = SkMax32(fHeight, glyph.fHeight); 45499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 45599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com int biWidth = isBW ? alignTo32(fWidth) : fWidth; 45699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 45799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (0 == fBM) { 45899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com MyBitmapInfo info; 45999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com sk_bzero(&info, sizeof(info)); 46099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (isBW) { 46199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com RGBQUAD blackQuad = { 0, 0, 0, 0 }; 46299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com RGBQUAD whiteQuad = { 0xFF, 0xFF, 0xFF, 0 }; 46399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiColors[0] = blackQuad; 46499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiColors[1] = whiteQuad; 46599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 46699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biSize = sizeof(info.bmiHeader); 46799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biWidth = biWidth; 46899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biHeight = fHeight; 46999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biPlanes = 1; 47099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biBitCount = isBW ? 1 : 32; 47199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biCompression = BI_RGB; 47299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (isBW) { 47399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biClrUsed = 2; 47499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 47599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fBM = CreateDIBSection(fDC, &info, DIB_RGB_COLORS, &fBits, 0, 0); 47699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (0 == fBM) { 47799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com return NULL; 47899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 47999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SelectObject(fDC, fBM); 48099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 48199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 48299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com // erase 48399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com size_t srcRB = isBW ? (biWidth >> 3) : (fWidth << 2); 48499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com size_t size = fHeight * srcRB; 48597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com memset(fBits, 0, size); 48699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 48799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com XFORM xform = fXform; 48899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com xform.eDx = (float)-glyph.fLeft; 48999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com xform.eDy = (float)-glyph.fTop; 49099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SetWorldTransform(fDC, &xform); 49199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 49299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com uint16_t glyphID = glyph.getGlyphID(); 49339698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com BOOL ret = ExtTextOutW(fDC, 0, 0, ETO_GLYPH_INDEX, NULL, reinterpret_cast<LPCWSTR>(&glyphID), 1, NULL); 49499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com GdiFlush(); 49539698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (0 == ret) { 49639698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com return NULL; 49739698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 49899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com *srcRBPtr = srcRB; 49999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com // offset to the start of the image 50099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com return (const char*)fBits + (fHeight - glyph.fHeight) * srcRB; 50199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com} 50299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 503b8a5c618d2e18d71707ae4dcafbe5153d7ff427freed@google.com////////////////////////////////////////////////////////////////////////////// 50459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 505ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comclass SkScalerContext_Windows : public SkScalerContext { 506ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.compublic: 5070da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.com SkScalerContext_Windows(SkTypeface*, const SkDescriptor* desc); 508ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com virtual ~SkScalerContext_Windows(); 509ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 510ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comprotected: 51197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com virtual unsigned generateGlyphCount() SK_OVERRIDE; 51297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com virtual uint16_t generateCharToGlyph(SkUnichar uni) SK_OVERRIDE; 51397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com virtual void generateAdvance(SkGlyph* glyph) SK_OVERRIDE; 51497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com virtual void generateMetrics(SkGlyph* glyph) SK_OVERRIDE; 515a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com virtual void generateImage(const SkGlyph& glyph) SK_OVERRIDE; 51697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com virtual void generatePath(const SkGlyph& glyph, SkPath* path) SK_OVERRIDE; 517a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com virtual void generateFontMetrics(SkPaint::FontMetrics* mX, 518a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com SkPaint::FontMetrics* mY) SK_OVERRIDE; 51999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 520ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comprivate: 52199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HDCOffscreen fOffscreen; 5225aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org SkScalar fScale; // to get from canonical size to real size 523ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com MAT2 fMat22; 524ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HDC fDDC; 525ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT fSavefont; 526ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT fFont; 527ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SCRIPT_CACHE fSC; 528ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int fGlyphCount; 5291dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 5301dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com HFONT fHiResFont; 5311dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com MAT2 fMat22Identity; 5321dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com SkMatrix fHiResMatrix; 533a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com enum Type { 534a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com kTrueType_Type, kBitmap_Type, 535a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } fType; 536a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com TEXTMETRIC fTM; 537ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com}; 538ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 539ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic float mul2float(SkScalar a, SkScalar b) { 540ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkScalarToFloat(SkScalarMul(a, b)); 541ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 542ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 543ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic FIXED float2FIXED(float x) { 544ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkFixedToFIXED(SkFloatToFixed(x)); 545ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 546ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 5471771cbf43d9a1334e3d870c635b4215bb888dd98digit@google.comSK_DECLARE_STATIC_MUTEX(gFTMutex); 54859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 5491dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com#define HIRES_TEXTSIZE 2048 5501dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com#define HIRES_SHIFT 11 5511dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.comstatic inline SkFixed HiResToFixed(int value) { 5521dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com return value << (16 - HIRES_SHIFT); 5531dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com} 5541dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 5551dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.comstatic bool needHiResMetrics(const SkScalar mat[2][2]) { 5561dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com return mat[1][0] || mat[0][1]; 5571dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com} 5581dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 55982a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.comstatic BYTE compute_quality(const SkScalerContext::Rec& rec) { 56082a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com switch (rec.fMaskFormat) { 56182a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com case SkMask::kBW_Format: 56282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com return NONANTIALIASED_QUALITY; 56382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com case SkMask::kLCD16_Format: 56482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com case SkMask::kLCD32_Format: 56582a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com return CLEARTYPE_QUALITY; 56682a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com default: 5678351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com if (rec.fFlags & SkScalerContext::kGenA8FromLCD_Flag) { 5688351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com return CLEARTYPE_QUALITY; 5698351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com } else { 5708351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com return ANTIALIASED_QUALITY; 5718351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com } 57282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com } 57382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com} 57482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 575055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.comSkScalerContext_Windows::SkScalerContext_Windows(SkTypeface* rawTypeface, 5760da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.com const SkDescriptor* desc) 577055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com : SkScalerContext(rawTypeface, desc) 578055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com , fDDC(0) 579055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com , fFont(0) 580055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com , fSavefont(0) 581055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com , fSC(0) 582ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com , fGlyphCount(-1) { 583ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkAutoMutexAcquire ac(gFTMutex); 584ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 585055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com LogFontTypeface* typeface = reinterpret_cast<LogFontTypeface*>(rawTypeface); 586055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com 587ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fDDC = ::CreateCompatibleDC(NULL); 5881dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com SetGraphicsMode(fDDC, GM_ADVANCED); 589ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SetBkMode(fDDC, TRANSPARENT); 590ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 591ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Scaling by the DPI is inconsistent with how Skia draws elsewhere 592ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com //SkScalar height = -(fRec.fTextSize * GetDeviceCaps(ddc, LOGPIXELSY) / 72); 593055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com LOGFONT lf = typeface->fLogFont; 594ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com lf.lfHeight = -gCanonicalTextSize; 59582a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com lf.lfQuality = compute_quality(fRec); 596ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fFont = CreateFontIndirect(&lf); 5971dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 5981dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com // if we're rotated, or want fractional widths, create a hires font 5991dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com fHiResFont = 0; 600c84547a8d3cb04f0547db282b34e26abfbe64ec3bungeman@google.com if (needHiResMetrics(fRec.fPost2x2)) { 6011dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com lf.lfHeight = -HIRES_TEXTSIZE; 6021dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com fHiResFont = CreateFontIndirect(&lf); 6031dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 6041dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com fMat22Identity.eM11 = fMat22Identity.eM22 = SkFixedToFIXED(SK_Fixed1); 6051dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com fMat22Identity.eM12 = fMat22Identity.eM21 = SkFixedToFIXED(0); 6061dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 6071dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com // construct a matrix to go from HIRES logical units to our device units 6081dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com fRec.getSingleMatrix(&fHiResMatrix); 6091dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com SkScalar scale = SkScalarInvert(SkIntToScalar(HIRES_TEXTSIZE)); 6101dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com fHiResMatrix.preScale(scale, scale); 6111dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com } 612ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fSavefont = (HFONT)SelectObject(fDDC, fFont); 613a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 614a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (0 == GetTextMetrics(fDDC, &fTM)) { 615055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com call_ensure_accessible(lf); 616a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (0 == GetTextMetrics(fDDC, &fTM)) { 617a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fTM.tmPitchAndFamily = TMPF_TRUETYPE; 618a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 619a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 620a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com // Used a logfont on a memory context, should never get a device font. 62190b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com // Therefore all TMPF_DEVICE will be PostScript fonts. 62290b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com 62390b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com // If TMPF_VECTOR is set, one of TMPF_TRUETYPE or TMPF_DEVICE must be set, 62490b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com // otherwise we have a vector FON, which we don't support. 62590b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com // This was determined by testing with Type1 PFM/PFB and OpenTypeCFF OTF, 62690b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com // as well as looking at Wine bugs and sources. 62790b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com SkASSERT(!(fTM.tmPitchAndFamily & TMPF_VECTOR) || 62890b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com (fTM.tmPitchAndFamily & (TMPF_TRUETYPE | TMPF_DEVICE))); 62990b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com 630d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com XFORM xform; 63190b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com if (fTM.tmPitchAndFamily & TMPF_VECTOR) { 632a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com // Truetype or PostScript. 633a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com // Stroked FON also gets here (TMPF_VECTOR), but we don't handle it. 634a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fType = SkScalerContext_Windows::kTrueType_Type; 635a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fScale = fRec.fTextSize / gCanonicalTextSize; 636a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 637d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // fPost2x2 is column-major, left handed (y down). 638d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // XFORM 2x2 is row-major, left handed (y down). 639d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM11 = mul2float(fScale, fRec.fPost2x2[0][0]); 640d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM12 = mul2float(fScale, fRec.fPost2x2[1][0]); 641d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM21 = mul2float(fScale, fRec.fPost2x2[0][1]); 642d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM22 = mul2float(fScale, fRec.fPost2x2[1][1]); 643d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eDx = 0; 644d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eDy = 0; 645d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com 646d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // MAT2 is row major, right handed (y up). 647d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM11 = float2FIXED(xform.eM11); 648d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM12 = float2FIXED(-xform.eM12); 649d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM21 = float2FIXED(-xform.eM21); 650d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM22 = float2FIXED(xform.eM22); 651a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 652a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (needToRenderWithSkia(fRec)) { 653a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com this->forceGenerateImageFromPath(); 654a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 655a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 656a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } else { 657a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com // Assume bitmap 658a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fType = SkScalerContext_Windows::kBitmap_Type; 659a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fScale = SK_Scalar1; 660a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 661d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM11 = 1.0f; 662d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM12 = 0.0f; 663d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM21 = 0.0f; 664d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM22 = 1.0f; 665d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eDx = 0.0f; 666d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eDy = 0.0f; 667a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 668d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // fPost2x2 is column-major, left handed (y down). 669d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // MAT2 is row major, right handed (y up). 670a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fMat22.eM11 = SkScalarToFIXED(fRec.fPost2x2[0][0]); 671d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM12 = SkScalarToFIXED(-fRec.fPost2x2[1][0]); 672a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fMat22.eM21 = SkScalarToFIXED(-fRec.fPost2x2[0][1]); 673d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM22 = SkScalarToFIXED(fRec.fPost2x2[1][1]); 674a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 675a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com lf.lfHeight = -SkScalarCeilToInt(fRec.fTextSize); 676a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com HFONT bitmapFont = CreateFontIndirect(&lf); 677a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com SelectObject(fDDC, bitmapFont); 678a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com ::DeleteObject(fFont); 679a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fFont = bitmapFont; 680a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 681a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (0 == GetTextMetrics(fDDC, &fTM)) { 682055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com call_ensure_accessible(lf); 683a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com //if the following fails, we'll just draw at gCanonicalTextSize. 684a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com GetTextMetrics(fDDC, &fTM); 685a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 686a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com } 68799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 688d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fOffscreen.init(fFont, xform); 689ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 690ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 691ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comSkScalerContext_Windows::~SkScalerContext_Windows() { 692ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fDDC) { 693ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::SelectObject(fDDC, fSavefont); 694ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::DeleteDC(fDDC); 695ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 696ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fFont) { 697ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::DeleteObject(fFont); 698ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 6991dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com if (fHiResFont) { 7001dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com ::DeleteObject(fHiResFont); 7011dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com } 702ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fSC) { 703ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::ScriptFreeCache(&fSC); 704ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 705ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 706ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 707ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comunsigned SkScalerContext_Windows::generateGlyphCount() { 708ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fGlyphCount < 0) { 709a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (fType == SkScalerContext_Windows::kBitmap_Type) { 710a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com return fTM.tmLastChar; 711a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 712a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fGlyphCount = calculateOutlineGlyphCount(fDDC); 713ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 714ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return fGlyphCount; 715ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 716ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 717ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comuint16_t SkScalerContext_Windows::generateCharToGlyph(SkUnichar uni) { 718ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com uint16_t index = 0; 719ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com WCHAR c[2]; 720ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // TODO(ctguil): Support characters that generate more than one glyph. 721ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (SkUTF16_FromUnichar(uni, (uint16_t*)c) == 1) { 722ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Type1 fonts fail with uniscribe API. Use GetGlyphIndices for plane 0. 723ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkAssertResult(GetGlyphIndicesW(fDDC, c, 1, &index, 0)); 724ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 725ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Use uniscribe to detemine glyph index for non-BMP characters. 726ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Need to add extra item to SCRIPT_ITEM to work around a bug in older 727ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // windows versions. https://bugzilla.mozilla.org/show_bug.cgi?id=366643 728ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SCRIPT_ITEM si[2 + 1]; 729ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int items; 730ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkAssertResult( 731ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SUCCEEDED(ScriptItemize(c, 2, 2, NULL, NULL, si, &items))); 732ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 733ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com WORD log[2]; 734ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SCRIPT_VISATTR vsa; 735ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int glyphs; 736ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkAssertResult(SUCCEEDED(ScriptShape( 737ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fDDC, &fSC, c, 2, 1, &si[0].a, &index, log, &vsa, &glyphs))); 738ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 739ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return index; 740ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 741ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 742ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comvoid SkScalerContext_Windows::generateAdvance(SkGlyph* glyph) { 743ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com this->generateMetrics(glyph); 744ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 745ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 746ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comvoid SkScalerContext_Windows::generateMetrics(SkGlyph* glyph) { 747ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(fDDC); 748ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 749a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (fType == SkScalerContext_Windows::kBitmap_Type) { 750a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com SIZE size; 751a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com WORD glyphs = glyph->getGlyphID(0); 752a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (0 == GetTextExtentPointI(fDDC, &glyphs, 1, &size)) { 753a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fWidth = SkToS16(fTM.tmMaxCharWidth); 754a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } else { 755a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fWidth = SkToS16(size.cx); 756a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 757a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fHeight = SkToS16(size.cy); 758a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 759a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fTop = SkToS16(-fTM.tmAscent); 760a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fLeft = SkToS16(0); 761a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fAdvanceX = SkIntToFixed(glyph->fWidth); 762a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fAdvanceY = 0; 763a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 764d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // Apply matrix to advance. 765a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fAdvanceY = SkFixedMul(SkFIXEDToFixed(fMat22.eM21), glyph->fAdvanceX); 766a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fAdvanceX = SkFixedMul(SkFIXEDToFixed(fMat22.eM11), glyph->fAdvanceX); 767a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 768a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com return; 769a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 770a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 771d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com UINT glyphId = glyph->getGlyphID(0); 772d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com 773ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com GLYPHMETRICS gm; 7741dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com sk_bzero(&gm, sizeof(gm)); 775ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 776d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com DWORD status = GetGlyphOutlineW(fDDC, glyphId, GGO_METRICS | GGO_GLYPH_INDEX, &gm, 0, NULL, &fMat22); 777d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (GDI_ERROR == status) { 778055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com LogFontTypeface::EnsureAccessible(this->getTypeface()); 779d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com status = GetGlyphOutlineW(fDDC, glyphId, GGO_METRICS | GGO_GLYPH_INDEX, &gm, 0, NULL, &fMat22); 780d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (GDI_ERROR == status) { 781d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->zeroMetrics(); 782d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com return; 783d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 78439698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 785ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 786d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com bool empty = false; 787d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // The black box is either the embedded bitmap size or the outline extent. 788d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // It is 1x1 if nothing is to be drawn, but will also be 1x1 if something very small 789d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // is to be drawn, like a '.'. We need to outset '.' but do not wish to outset ' '. 790d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (1 == gm.gmBlackBoxX && 1 == gm.gmBlackBoxY) { 791d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // If GetGlyphOutline with GGO_NATIVE returns 0, we know there was no outline. 792d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com DWORD bufferSize = GetGlyphOutlineW(fDDC, glyphId, GGO_NATIVE | GGO_GLYPH_INDEX, &gm, 0, NULL, &fMat22); 793d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com empty = (0 == bufferSize); 794d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 7951dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 796d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fTop = SkToS16(-gm.gmptGlyphOrigin.y); 797d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fLeft = SkToS16(gm.gmptGlyphOrigin.x); 798d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (empty) { 799d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fWidth = 0; 800d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fHeight = 0; 801ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 802d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // Outset, since the image may bleed out of the black box. 803d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // For embedded bitmaps the black box should be exact. 804d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // For outlines we need to outset by 1 in all directions for bleed. 805d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // For ClearType we need to outset by 2 for bleed. 806d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fWidth = gm.gmBlackBoxX + 4; 807d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fHeight = gm.gmBlackBoxY + 4; 808d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fTop -= 2; 809d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fLeft -= 2; 810d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 811d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fAdvanceX = SkIntToFixed(gm.gmCellIncX); 812d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fAdvanceY = SkIntToFixed(gm.gmCellIncY); 813d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fRsbDelta = 0; 814d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fLsbDelta = 0; 815d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com 816d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (fHiResFont) { 817d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SelectObject(fDDC, fHiResFont); 818d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com sk_bzero(&gm, sizeof(gm)); 819d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com status = GetGlyphOutlineW(fDDC, glyphId, GGO_METRICS | GGO_GLYPH_INDEX, &gm, 0, NULL, &fMat22Identity); 820d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (GDI_ERROR != status) { 821d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkPoint advance; 822d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fHiResMatrix.mapXY(SkIntToScalar(gm.gmCellIncX), SkIntToScalar(gm.gmCellIncY), &advance); 823d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fAdvanceX = SkScalarToFixed(advance.fX); 824d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fAdvanceY = SkScalarToFixed(advance.fY); 825d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 826d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SelectObject(fDDC, fFont); 827ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 828ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 829ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 830ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comvoid SkScalerContext_Windows::generateFontMetrics(SkPaint::FontMetrics* mx, SkPaint::FontMetrics* my) { 831ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com// Note: This code was borrowed from generateLineHeight, which has a note 832ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com// stating that it may be incorrect. 833ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (!(mx || my)) 834ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return; 835ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 836ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(fDDC); 837ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 838a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (fType == SkScalerContext_Windows::kBitmap_Type) { 839a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (mx) { 840a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com mx->fTop = SkIntToScalar(-fTM.tmAscent); 841a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com mx->fAscent = SkIntToScalar(-fTM.tmAscent); 842a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com mx->fDescent = -SkIntToScalar(fTM.tmDescent); 843a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com mx->fBottom = SkIntToScalar(fTM.tmDescent); 844a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com mx->fLeading = SkIntToScalar(fTM.tmInternalLeading 845a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com + fTM.tmExternalLeading); 846a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 847a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 848a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (my) { 849a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com my->fTop = SkIntToScalar(-fTM.tmAscent); 850a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com my->fAscent = SkIntToScalar(-fTM.tmAscent); 851a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com my->fDescent = SkIntToScalar(-fTM.tmDescent); 852a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com my->fBottom = SkIntToScalar(fTM.tmDescent); 853a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com my->fLeading = SkIntToScalar(fTM.tmInternalLeading 854a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com + fTM.tmExternalLeading); 855a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 856a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com return; 857a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 858a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 859ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com OUTLINETEXTMETRIC otm; 860ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 861ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com uint32_t ret = GetOutlineTextMetrics(fDDC, sizeof(otm), &otm); 86239698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (GDI_ERROR == ret) { 863055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com LogFontTypeface::EnsureAccessible(this->getTypeface()); 86439698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com ret = GetOutlineTextMetrics(fDDC, sizeof(otm), &otm); 86539698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 866ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (sizeof(otm) != ret) { 867a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com return; 868ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 869ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 870ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (mx) { 871ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com mx->fTop = -fScale * otm.otmTextMetrics.tmAscent; 8725aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org mx->fAscent = -fScale * otm.otmAscent; 8735aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org mx->fDescent = -fScale * otm.otmDescent; 8745aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org mx->fBottom = fScale * otm.otmTextMetrics.tmDescent; 8755aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org mx->fLeading = fScale * (otm.otmTextMetrics.tmInternalLeading 8765aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org + otm.otmTextMetrics.tmExternalLeading); 877ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 878ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 879ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (my) { 8805aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org my->fTop = -fScale * otm.otmTextMetrics.tmAscent; 8815aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org my->fAscent = -fScale * otm.otmAscent; 8825aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org my->fDescent = -fScale * otm.otmDescent; 8835aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org my->fBottom = fScale * otm.otmTextMetrics.tmDescent; 8845aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org my->fLeading = fScale * (otm.otmTextMetrics.tmInternalLeading 8855aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org + otm.otmTextMetrics.tmExternalLeading); 886ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 887ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 888ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 8897430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com//////////////////////////////////////////////////////////////////////////////////////// 8907430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com 8917430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.comstatic void build_power_table(uint8_t table[], float ee) { 8927430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com for (int i = 0; i < 256; i++) { 8937430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com float x = i / 255.f; 89497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com x = sk_float_pow(x, ee); 8957430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com int xx = SkScalarRound(SkFloatToScalar(x * 255)); 8967430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com table[i] = SkToU8(xx); 8977430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com } 8987430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com} 8997430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com 90097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com/** 90197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * This will invert the gamma applied by GDI (gray-scale antialiased), so we 90297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * can get linear values. 90397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * 90497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * GDI grayscale appears to use a hard-coded gamma of 2.3. 90597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * 90697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * GDI grayscale appears to draw using the black and white rasterizer at four 90797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * times the size and then downsamples to compute the coverage mask. As a 90897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * result there are only seventeen total grays. This lack of fidelity means 90997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * that shifting into other color spaces is imprecise. 91097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com */ 91197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic const uint8_t* getInverseGammaTableGDI() { 91297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com static bool gInited; 91397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com static uint8_t gTableGdi[256]; 91497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com if (!gInited) { 91597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com build_power_table(gTableGdi, 2.3f); 91697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com gInited = true; 91797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } 91897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com return gTableGdi; 91997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com} 92097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com 92197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com/** 92297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * This will invert the gamma applied by GDI ClearType, so we can get linear 92397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * values. 92497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * 92597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * GDI ClearType uses SPI_GETFONTSMOOTHINGCONTRAST / 1000 as the gamma value. 92697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * If this value is not specified, the default is a gamma of 1.4. 92797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com */ 92897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic const uint8_t* getInverseGammaTableClearType() { 9297430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com static bool gInited; 93097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com static uint8_t gTableClearType[256]; 9317430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com if (!gInited) { 9327430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com UINT level = 0; 9337430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com if (!SystemParametersInfo(SPI_GETFONTSMOOTHINGCONTRAST, 0, &level, 0) || !level) { 9347430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com // can't get the data, so use a default 9357430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com level = 1400; 9367430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com } 93797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com build_power_table(gTableClearType, level / 1000.0f); 9387430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com gInited = true; 9397430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com } 94097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com return gTableClearType; 9417430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com} 9427430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com 943ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkColorPriv.h" 944ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 9456385314686875ecb484d95b33fcbf08890b5144dbungeman@google.com//Cannot assume that the input rgb is gray due to possible setting of kGenA8FromLCD_Flag. 94697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 94797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic inline uint8_t rgb_to_a8(SkGdiRGB rgb, const uint8_t* table8) { 9486385314686875ecb484d95b33fcbf08890b5144dbungeman@google.com U8CPU r = (rgb >> 16) & 0xFF; 9496385314686875ecb484d95b33fcbf08890b5144dbungeman@google.com U8CPU g = (rgb >> 8) & 0xFF; 9506385314686875ecb484d95b33fcbf08890b5144dbungeman@google.com U8CPU b = (rgb >> 0) & 0xFF; 9511bfe01d06b896eca94c80d9af9a6bb30216b5e42bungeman@google.com return sk_apply_lut_if<APPLY_PREBLEND>(SkComputeLuminance(r, g, b), table8); 95282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com} 95382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 95497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 95597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic inline uint16_t rgb_to_lcd16(SkGdiRGB rgb, const uint8_t* tableR, 95697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableG, 95797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableB) { 95897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU r = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 16) & 0xFF, tableR); 95997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU g = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 8) & 0xFF, tableG); 96097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU b = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 0) & 0xFF, tableB); 96197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com return SkPack888ToRGB16(r, g, b); 962ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 963ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 96497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 96597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic inline SkPMColor rgb_to_lcd32(SkGdiRGB rgb, const uint8_t* tableR, 96697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableG, 96797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableB) { 96897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU r = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 16) & 0xFF, tableR); 96997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU g = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 8) & 0xFF, tableG); 97097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU b = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 0) & 0xFF, tableB); 97197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com return SkPackARGB32(0xFF, r, g, b); 972754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com} 973754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com 97482cff020b7e055f2d01686f060a884df842306edreed@google.com// Is this GDI color neither black nor white? If so, we have to keep this 97582cff020b7e055f2d01686f060a884df842306edreed@google.com// image as is, rather than smashing it down to a BW mask. 97682cff020b7e055f2d01686f060a884df842306edreed@google.com// 97782cff020b7e055f2d01686f060a884df842306edreed@google.com// returns int instead of bool, since we don't want/have to pay to convert 97882cff020b7e055f2d01686f060a884df842306edreed@google.com// the zero/non-zero value into a bool 97982cff020b7e055f2d01686f060a884df842306edreed@google.comstatic int is_not_black_or_white(SkGdiRGB c) { 98082cff020b7e055f2d01686f060a884df842306edreed@google.com // same as (but faster than) 98182cff020b7e055f2d01686f060a884df842306edreed@google.com // c &= 0x00FFFFFF; 98282cff020b7e055f2d01686f060a884df842306edreed@google.com // return 0 == c || 0x00FFFFFF == c; 98382cff020b7e055f2d01686f060a884df842306edreed@google.com return (c + (c & 1)) & 0x00FFFFFF; 9845e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 9855e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 9865e2df64215f12660ab26b96816f40ad8e32bf16freed@google.comstatic bool is_rgb_really_bw(const SkGdiRGB* src, int width, int height, int srcRB) { 9875e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int y = 0; y < height; ++y) { 9885e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int x = 0; x < width; ++x) { 98982cff020b7e055f2d01686f060a884df842306edreed@google.com if (is_not_black_or_white(src[x])) { 9905e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com return false; 9915e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 9925e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 9936f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com src = SkTAddByteOffset(src, srcRB); 9945e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 9955e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com return true; 9965e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 9975e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 99897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com// gdi's bitmap is upside-down, so we reverse dst walking in Y 99997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com// whenever we copy it into skia's buffer 10005e2df64215f12660ab26b96816f40ad8e32bf16freed@google.comstatic void rgb_to_bw(const SkGdiRGB* SK_RESTRICT src, size_t srcRB, 100197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const SkGlyph& glyph) { 10025e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const int width = glyph.fWidth; 10035e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const size_t dstRB = (width + 7) >> 3; 10045e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com uint8_t* SK_RESTRICT dst = (uint8_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 10055e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 10065e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com int byteCount = width >> 3; 10075e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com int bitCount = width & 7; 10085e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 10095e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com // adjust srcRB to skip the values in our byteCount loop, 10105e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com // since we increment src locally there 10115e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com srcRB -= byteCount * 8 * sizeof(SkGdiRGB); 10125e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 10135e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int y = 0; y < glyph.fHeight; ++y) { 10145e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com if (byteCount > 0) { 10155e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int i = 0; i < byteCount; ++i) { 10167a230142e01c5a8cf955be12a5f287589b551634reed@google.com unsigned byte = 0; 101797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[0] & (1 << 7); 101897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[1] & (1 << 6); 101997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[2] & (1 << 5); 102097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[3] & (1 << 4); 102197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[4] & (1 << 3); 102297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[5] & (1 << 2); 102397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[6] & (1 << 1); 102497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[7] & (1 << 0); 10256a8f14d9633b330fb8051581828a0aaf4403d1a9reed@google.com dst[i] = byte; 10265e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com src += 8; 10275e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 10285e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 10295e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com if (bitCount > 0) { 10305e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com unsigned byte = 0; 10315e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com unsigned mask = 0x80; 10325e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int i = 0; i < bitCount; i++) { 103397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[i] & mask; 10345e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com mask >>= 1; 10355e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 10365e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com dst[byteCount] = byte; 10375e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 10386f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com src = SkTAddByteOffset(src, srcRB); 10395e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com dst -= dstRB; 10405e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 10415e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 10425e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 104397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 10445e2df64215f12660ab26b96816f40ad8e32bf16freed@google.comstatic void rgb_to_a8(const SkGdiRGB* SK_RESTRICT src, size_t srcRB, 104597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const SkGlyph& glyph, const uint8_t* table8) { 10465e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const size_t dstRB = glyph.rowBytes(); 10475e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const int width = glyph.fWidth; 10485e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com uint8_t* SK_RESTRICT dst = (uint8_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 10495e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 10505e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int y = 0; y < glyph.fHeight; y++) { 10515e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int i = 0; i < width; i++) { 105297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com dst[i] = rgb_to_a8<APPLY_PREBLEND>(src[i], table8); 10535e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 10546f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com src = SkTAddByteOffset(src, srcRB); 10555e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com dst -= dstRB; 10565e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 10575e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 10585e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 105997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 106097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic void rgb_to_lcd16(const SkGdiRGB* SK_RESTRICT src, size_t srcRB, const SkGlyph& glyph, 106197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableR, const uint8_t* tableG, const uint8_t* tableB) { 10625e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const size_t dstRB = glyph.rowBytes(); 10635e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const int width = glyph.fWidth; 10645e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com uint16_t* SK_RESTRICT dst = (uint16_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 10655e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 10665e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int y = 0; y < glyph.fHeight; y++) { 10675e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int i = 0; i < width; i++) { 106897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com dst[i] = rgb_to_lcd16<APPLY_PREBLEND>(src[i], tableR, tableG, tableB); 10695e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 10706f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com src = SkTAddByteOffset(src, srcRB); 10715e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com dst = (uint16_t*)((char*)dst - dstRB); 10725e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 10735e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 10745e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 107597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 107697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic void rgb_to_lcd32(const SkGdiRGB* SK_RESTRICT src, size_t srcRB, const SkGlyph& glyph, 107797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableR, const uint8_t* tableG, const uint8_t* tableB) { 1078754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com const size_t dstRB = glyph.rowBytes(); 1079754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com const int width = glyph.fWidth; 108097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com uint32_t* SK_RESTRICT dst = (uint32_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 1081754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com 1082754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com for (int y = 0; y < glyph.fHeight; y++) { 1083754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com for (int i = 0; i < width; i++) { 108497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com dst[i] = rgb_to_lcd32<APPLY_PREBLEND>(src[i], tableR, tableG, tableB); 1085754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } 10866f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com src = SkTAddByteOffset(src, srcRB); 108797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com dst = (uint32_t*)((char*)dst - dstRB); 1088754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } 1089754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com} 1090754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com 10916f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.comstatic inline unsigned clamp255(unsigned x) { 10926f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com SkASSERT(x <= 256); 10936f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com return x - (x >> 8); 10946f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com} 10956f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com 1096a76de72a6036da0a6b051b14411b80941971f881bungeman@google.comvoid SkScalerContext_Windows::generateImage(const SkGlyph& glyph) { 109797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com SkAutoMutexAcquire ac(gFTMutex); 1098ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(fDDC); 1099ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 11006271117d826098c1399cf7442f8eea2d665cb78areed@google.com const bool isBW = SkMask::kBW_Format == fRec.fMaskFormat; 110182a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com const bool isAA = !isLCD(fRec); 110282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 110399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com size_t srcRB; 110497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const void* bits = fOffscreen.draw(glyph, isBW, &srcRB); 110539698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (NULL == bits) { 1106055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com LogFontTypeface::EnsureAccessible(this->getTypeface()); 110797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com bits = fOffscreen.draw(glyph, isBW, &srcRB); 110839698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (NULL == bits) { 110939698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com sk_bzero(glyph.fImage, glyph.computeImageSize()); 111039698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com return; 111139698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 111282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com } 111382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 111497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com if (!isBW) { 11151bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com const uint8_t* table; 11161bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com //The offscreen contains a GDI blit if isAA and kGenA8FromLCD_Flag is not set. 11171bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com //Otherwise the offscreen contains a ClearType blit. 11181bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com if (isAA && !(fRec.fFlags & SkScalerContext::kGenA8FromLCD_Flag)) { 11191bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com table = getInverseGammaTableGDI(); 11201bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com } else { 11211bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com table = getInverseGammaTableClearType(); 112297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } 112397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //Note that the following cannot really be integrated into the 112497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //pre-blend, since we may not be applying the pre-blend; when we aren't 112597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //applying the pre-blend it means that a filter wants linear anyway. 112697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //Other code may also be applying the pre-blend, so we'd need another 112797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //one with this and one without. 11286f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com SkGdiRGB* addr = (SkGdiRGB*)bits; 11296f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com for (int y = 0; y < glyph.fHeight; ++y) { 11306f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com for (int x = 0; x < glyph.fWidth; ++x) { 11316f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com int r = (addr[x] >> 16) & 0xFF; 11326f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com int g = (addr[x] >> 8) & 0xFF; 11336f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com int b = (addr[x] >> 0) & 0xFF; 11347430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com addr[x] = (table[r] << 16) | (table[g] << 8) | table[b]; 11356f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com } 11366f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com addr = SkTAddByteOffset(addr, srcRB); 11376f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com } 11386f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com } 11396f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com 114082a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com int width = glyph.fWidth; 114182a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com size_t dstRB = glyph.rowBytes(); 114282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com if (isBW) { 114382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com const uint8_t* src = (const uint8_t*)bits; 114482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com uint8_t* dst = (uint8_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 114582a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com for (int y = 0; y < glyph.fHeight; y++) { 114682a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com memcpy(dst, src, dstRB); 114782a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com src += srcRB; 114882a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com dst -= dstRB; 1149ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 115082a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com } else if (isAA) { 11516f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com // since the caller may require A8 for maskfilters, we can't check for BW 11526f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com // ... until we have the caller tell us that explicitly 11535e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const SkGdiRGB* src = (const SkGdiRGB*)bits; 1154a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com if (fPreBlend.isApplicable()) { 1155a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com rgb_to_a8<true>(src, srcRB, glyph, fPreBlend.fG); 115697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } else { 1157a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com rgb_to_a8<false>(src, srcRB, glyph, fPreBlend.fG); 115897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } 115982a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com } else { // LCD16 11605e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const SkGdiRGB* src = (const SkGdiRGB*)bits; 11615e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com if (is_rgb_really_bw(src, width, glyph.fHeight, srcRB)) { 116297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com rgb_to_bw(src, srcRB, glyph); 11635e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com ((SkGlyph*)&glyph)->fMaskFormat = SkMask::kBW_Format; 11645e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } else { 1165754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com if (SkMask::kLCD16_Format == glyph.fMaskFormat) { 1166a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com if (fPreBlend.isApplicable()) { 1167a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com rgb_to_lcd16<true>(src, srcRB, glyph, 1168a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com fPreBlend.fR, fPreBlend.fG, fPreBlend.fB); 116997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } else { 1170a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com rgb_to_lcd16<false>(src, srcRB, glyph, 1171a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com fPreBlend.fR, fPreBlend.fG, fPreBlend.fB); 117297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } 1173754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } else { 1174754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com SkASSERT(SkMask::kLCD32_Format == glyph.fMaskFormat); 1175a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com if (fPreBlend.isApplicable()) { 1176a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com rgb_to_lcd32<true>(src, srcRB, glyph, 1177a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com fPreBlend.fR, fPreBlend.fG, fPreBlend.fB); 117897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } else { 1179a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com rgb_to_lcd32<false>(src, srcRB, glyph, 1180a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com fPreBlend.fR, fPreBlend.fG, fPreBlend.fB); 118197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } 1182754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } 1183ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1184ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1185ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1186ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1187ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comvoid SkScalerContext_Windows::generatePath(const SkGlyph& glyph, SkPath* path) { 1188ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1189d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkAutoMutexAcquire ac(gFTMutex); 1190ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1191ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(&glyph && path); 1192ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(fDDC); 1193ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1194ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com path->reset(); 1195ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1196ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com GLYPHMETRICS gm; 1197ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com uint32_t total_size = GetGlyphOutlineW(fDDC, glyph.fID, GGO_NATIVE | GGO_GLYPH_INDEX, &gm, BUFFERSIZE, glyphbuf, &fMat22); 119839698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (GDI_ERROR == total_size) { 1199055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com LogFontTypeface::EnsureAccessible(this->getTypeface()); 120039698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com total_size = GetGlyphOutlineW(fDDC, glyph.fID, GGO_NATIVE | GGO_GLYPH_INDEX, &gm, BUFFERSIZE, glyphbuf, &fMat22); 1201d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (GDI_ERROR == total_size) { 1202d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkASSERT(false); 1203d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com return; 1204d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 120539698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 1206ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1207d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const uint8_t* cur_glyph = glyphbuf; 1208d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const uint8_t* end_glyph = glyphbuf + total_size; 1209ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1210d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com while (cur_glyph < end_glyph) { 1211d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const TTPOLYGONHEADER* th = (TTPOLYGONHEADER*)cur_glyph; 1212ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1213d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const uint8_t* end_poly = cur_glyph + th->cb; 1214d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const uint8_t* cur_poly = cur_glyph + sizeof(TTPOLYGONHEADER); 1215ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1216d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com path->moveTo(SkFixedToScalar( SkFIXEDToFixed(th->pfxStart.x)), 1217d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(th->pfxStart.y))); 1218ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1219d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com while (cur_poly < end_poly) { 1220d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const TTPOLYCURVE* pc = (const TTPOLYCURVE*)cur_poly; 1221ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1222d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (pc->wType == TT_PRIM_LINE) { 1223d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com for (uint16_t i = 0; i < pc->cpfx; i++) { 1224d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com path->lineTo(SkFixedToScalar( SkFIXEDToFixed(pc->apfx[i].x)), 1225d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(pc->apfx[i].y))); 1226ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1227d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 1228ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1229d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (pc->wType == TT_PRIM_QSPLINE) { 1230d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com for (uint16_t u = 0; u < pc->cpfx - 1; u++) { // Walk through points in spline 1231d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com POINTFX pnt_b = pc->apfx[u]; // B is always the current point 1232d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com POINTFX pnt_c = pc->apfx[u+1]; 1233ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1234d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (u < pc->cpfx - 2) { // If not on last spline, compute C 1235d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com pnt_c.x = SkFixedToFIXED(SkFixedAve(SkFIXEDToFixed(pnt_b.x), 1236d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFIXEDToFixed(pnt_c.x))); 1237d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com pnt_c.y = SkFixedToFIXED(SkFixedAve(SkFIXEDToFixed(pnt_b.y), 1238d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFIXEDToFixed(pnt_c.y))); 1239ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1240d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com 1241d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com path->quadTo(SkFixedToScalar( SkFIXEDToFixed(pnt_b.x)), 1242d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(pnt_b.y)), 1243d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFixedToScalar( SkFIXEDToFixed(pnt_c.x)), 1244d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(pnt_c.y))); 1245ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1246ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1247d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // Advance past this TTPOLYCURVE. 1248d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com cur_poly += sizeof(WORD) * 2 + sizeof(POINTFX) * pc->cpfx; 1249ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1250d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com cur_glyph += th->cb; 1251d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com path->close(); 1252ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1253ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1254ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1255e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.comstatic void logfont_for_name(const char* familyName, LOGFONT& lf) { 1256e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com memset(&lf, 0, sizeof(LOGFONT)); 1257e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com#ifdef UNICODE 1258e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com // Get the buffer size needed first. 1259e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com size_t str_len = ::MultiByteToWideChar(CP_UTF8, 0, familyName, 1260e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com -1, NULL, 0); 1261e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com // Allocate a buffer (str_len already has terminating null 1262e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com // accounted for). 1263e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com wchar_t *wideFamilyName = new wchar_t[str_len]; 1264e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com // Now actually convert the string. 1265e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com ::MultiByteToWideChar(CP_UTF8, 0, familyName, -1, 1266e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com wideFamilyName, str_len); 1267e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com ::wcsncpy(lf.lfFaceName, wideFamilyName, LF_FACESIZE - 1); 1268e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com delete [] wideFamilyName; 1269e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com lf.lfFaceName[LF_FACESIZE-1] = L'\0'; 1270e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com#else 1271e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com ::strncpy(lf.lfFaceName, familyName, LF_FACESIZE - 1); 1272e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com lf.lfFaceName[LF_FACESIZE - 1] = '\0'; 1273e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com#endif 1274e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com} 1275e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com 12767103f182ce61280eacb35f1832df350b642a5381bungeman@google.comstatic void tchar_to_skstring(const TCHAR* t, SkString* s) { 1277e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com#ifdef UNICODE 12787103f182ce61280eacb35f1832df350b642a5381bungeman@google.com size_t sSize = WideCharToMultiByte(CP_UTF8, 0, t, -1, NULL, 0, NULL, NULL); 12797103f182ce61280eacb35f1832df350b642a5381bungeman@google.com s->resize(sSize); 12807103f182ce61280eacb35f1832df350b642a5381bungeman@google.com WideCharToMultiByte(CP_UTF8, 0, t, -1, s->writable_str(), sSize, NULL, NULL); 1281e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com#else 12827103f182ce61280eacb35f1832df350b642a5381bungeman@google.com s->set(t); 1283e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com#endif 1284e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com} 1285e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com 12865526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.comvoid LogFontTypeface::onGetFontDescriptor(SkFontDescriptor* desc, 12875526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.com bool* isLocalStream) const { 12887103f182ce61280eacb35f1832df350b642a5381bungeman@google.com // Get the actual name of the typeface. The logfont may not know this. 12895526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.com HFONT font = CreateFontIndirect(&fLogFont); 12907103f182ce61280eacb35f1832df350b642a5381bungeman@google.com 12917103f182ce61280eacb35f1832df350b642a5381bungeman@google.com HDC deviceContext = ::CreateCompatibleDC(NULL); 12927103f182ce61280eacb35f1832df350b642a5381bungeman@google.com HFONT savefont = (HFONT)SelectObject(deviceContext, font); 12937103f182ce61280eacb35f1832df350b642a5381bungeman@google.com 12947103f182ce61280eacb35f1832df350b642a5381bungeman@google.com int fontNameLen; //length of fontName in TCHARS. 12957103f182ce61280eacb35f1832df350b642a5381bungeman@google.com if (0 == (fontNameLen = GetTextFace(deviceContext, 0, NULL))) { 12965526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.com call_ensure_accessible(fLogFont); 12977103f182ce61280eacb35f1832df350b642a5381bungeman@google.com if (0 == (fontNameLen = GetTextFace(deviceContext, 0, NULL))) { 12987103f182ce61280eacb35f1832df350b642a5381bungeman@google.com fontNameLen = 0; 12997103f182ce61280eacb35f1832df350b642a5381bungeman@google.com } 13007103f182ce61280eacb35f1832df350b642a5381bungeman@google.com } 13017103f182ce61280eacb35f1832df350b642a5381bungeman@google.com 13027103f182ce61280eacb35f1832df350b642a5381bungeman@google.com SkAutoSTArray<LF_FULLFACESIZE, TCHAR> fontName(fontNameLen+1); 13037103f182ce61280eacb35f1832df350b642a5381bungeman@google.com if (0 == GetTextFace(deviceContext, fontNameLen, fontName.get())) { 13045526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.com call_ensure_accessible(fLogFont); 13057103f182ce61280eacb35f1832df350b642a5381bungeman@google.com if (0 == GetTextFace(deviceContext, fontNameLen, fontName.get())) { 13067103f182ce61280eacb35f1832df350b642a5381bungeman@google.com fontName[0] = 0; 13077103f182ce61280eacb35f1832df350b642a5381bungeman@google.com } 13087103f182ce61280eacb35f1832df350b642a5381bungeman@google.com } 13097103f182ce61280eacb35f1832df350b642a5381bungeman@google.com 13107103f182ce61280eacb35f1832df350b642a5381bungeman@google.com if (deviceContext) { 13117103f182ce61280eacb35f1832df350b642a5381bungeman@google.com ::SelectObject(deviceContext, savefont); 13127103f182ce61280eacb35f1832df350b642a5381bungeman@google.com ::DeleteDC(deviceContext); 13137103f182ce61280eacb35f1832df350b642a5381bungeman@google.com } 13147103f182ce61280eacb35f1832df350b642a5381bungeman@google.com if (font) { 13157103f182ce61280eacb35f1832df350b642a5381bungeman@google.com ::DeleteObject(font); 13167103f182ce61280eacb35f1832df350b642a5381bungeman@google.com } 13177103f182ce61280eacb35f1832df350b642a5381bungeman@google.com 1318e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com SkString familyName; 13197103f182ce61280eacb35f1832df350b642a5381bungeman@google.com tchar_to_skstring(fontName.get(), &familyName); 1320e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com 13215526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.com desc->setFamilyName(familyName.c_str()); 13225526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.com *isLocalStream = this->fSerializeAsStream; 1323ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1324ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1325ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic bool getWidthAdvance(HDC hdc, int gId, int16_t* advance) { 1326ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Initialize the MAT2 structure to the identify transformation matrix. 1327ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com static const MAT2 mat2 = {SkScalarToFIXED(1), SkScalarToFIXED(0), 1328ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkScalarToFIXED(0), SkScalarToFIXED(1)}; 1329ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int flags = GGO_METRICS | GGO_GLYPH_INDEX; 1330ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com GLYPHMETRICS gm; 1331ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (GDI_ERROR == GetGlyphOutline(hdc, gId, flags, &gm, 0, NULL, &mat2)) { 1332ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return false; 1333ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1334ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(advance); 1335ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com *advance = gm.gmCellIncX; 1336ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return true; 1337ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1338ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 13392689f615e364dc48ad73826564f5b13d2329179dreed@google.comSkAdvancedTypefaceMetrics* LogFontTypeface::onGetAdvancedTypefaceMetrics( 134037ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org SkAdvancedTypefaceMetrics::PerGlyphInfo perGlyphInfo, 134137ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org const uint32_t* glyphIDs, 13422689f615e364dc48ad73826564f5b13d2329179dreed@google.com uint32_t glyphIDsCount) const { 13432689f615e364dc48ad73826564f5b13d2329179dreed@google.com LOGFONT lf = fLogFont; 1344ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkAdvancedTypefaceMetrics* info = NULL; 1345ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1346ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HDC hdc = CreateCompatibleDC(NULL); 1347ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT font = CreateFontIndirect(&lf); 1348ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT savefont = (HFONT)SelectObject(hdc, font); 1349ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT designFont = NULL; 1350ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 135105b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com const char stem_chars[] = {'i', 'I', '!', '1'}; 135205b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com int16_t min_width; 135305b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com unsigned glyphCount; 135405b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com 1355ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // To request design units, create a logical font whose height is specified 1356ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // as unitsPerEm. 1357ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com OUTLINETEXTMETRIC otm; 135839698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com unsigned int otmRet = GetOutlineTextMetrics(hdc, sizeof(otm), &otm); 135939698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (0 == otmRet) { 1360055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com call_ensure_accessible(lf); 136139698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com otmRet = GetOutlineTextMetrics(hdc, sizeof(otm), &otm); 136239698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 136339698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (!otmRet || !GetTextFace(hdc, LF_FACESIZE, lf.lfFaceName)) { 1364ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com goto Error; 1365ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1366ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com lf.lfHeight = -SkToS32(otm.otmEMSquare); 1367ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com designFont = CreateFontIndirect(&lf); 1368ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SelectObject(hdc, designFont); 1369ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (!GetOutlineTextMetrics(hdc, sizeof(otm), &otm)) { 1370ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com goto Error; 1371ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1372a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyphCount = calculateOutlineGlyphCount(hdc); 1373ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1374ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info = new SkAdvancedTypefaceMetrics; 1375ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fEmSize = otm.otmEMSquare; 1376ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fMultiMaster = false; 1377ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fLastGlyphID = SkToU16(glyphCount - 1); 1378ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle = 0; 13797103f182ce61280eacb35f1832df350b642a5381bungeman@google.com tchar_to_skstring(lf.lfFaceName, &info->fFontName); 1380ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 13816744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org if (perGlyphInfo & SkAdvancedTypefaceMetrics::kToUnicode_PerGlyphInfo) { 13826744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org populate_glyph_to_unicode(hdc, glyphCount, &(info->fGlyphToUnicode)); 13836744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 13846744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 1385d41e70de196e78e21e1001d23a7259785cbd0835vandebo@chromium.org if (glyphCount > 0 && 1386d41e70de196e78e21e1001d23a7259785cbd0835vandebo@chromium.org (otm.otmTextMetrics.tmPitchAndFamily & TMPF_TRUETYPE)) { 1387ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fType = SkAdvancedTypefaceMetrics::kTrueType_Font; 1388ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 1389ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fType = SkAdvancedTypefaceMetrics::kOther_Font; 1390ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fItalicAngle = 0; 1391ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fAscent = 0; 1392ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fDescent = 0; 1393ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStemV = 0; 1394ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fCapHeight = 0; 1395ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fBBox = SkIRect::MakeEmpty(); 1396ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return info; 1397ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 13985aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org 1399ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // If this bit is clear the font is a fixed pitch font. 1400ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (!(otm.otmTextMetrics.tmPitchAndFamily & TMPF_FIXED_PITCH)) { 1401ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kFixedPitch_Style; 1402ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1403ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (otm.otmTextMetrics.tmItalic) { 1404ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kItalic_Style; 1405ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1406ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (otm.otmTextMetrics.tmPitchAndFamily & FF_ROMAN) { 1407ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kSerif_Style; 1408ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else if (otm.otmTextMetrics.tmPitchAndFamily & FF_SCRIPT) { 1409ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kScript_Style; 1410ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1411ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1412ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // The main italic angle of the font, in tenths of a degree counterclockwise 1413ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // from vertical. 1414ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fItalicAngle = otm.otmItalicAngle / 10; 1415ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fAscent = SkToS16(otm.otmTextMetrics.tmAscent); 1416ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fDescent = SkToS16(-otm.otmTextMetrics.tmDescent); 1417ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // TODO(ctguil): Use alternate cap height calculation. 1418ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // MSDN says otmsCapEmHeight is not support but it is returning a value on 1419ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // my Win7 box. 1420ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fCapHeight = otm.otmsCapEmHeight; 1421ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fBBox = 1422ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkIRect::MakeLTRB(otm.otmrcFontBox.left, otm.otmrcFontBox.top, 1423ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com otm.otmrcFontBox.right, otm.otmrcFontBox.bottom); 1424ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1425ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Figure out a good guess for StemV - Min width of i, I, !, 1. 1426ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // This probably isn't very good with an italic font. 142705b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com min_width = SHRT_MAX; 1428ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStemV = 0; 1429ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com for (size_t i = 0; i < SK_ARRAY_COUNT(stem_chars); i++) { 1430ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ABC abcWidths; 1431ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (GetCharABCWidths(hdc, stem_chars[i], stem_chars[i], &abcWidths)) { 1432ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int16_t width = abcWidths.abcB; 1433ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (width > 0 && width < min_width) { 1434ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com min_width = width; 1435ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStemV = min_width; 1436ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1437ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1438ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1439ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1440ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // If bit 1 is set, the font may not be embedded in a document. 1441ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // If bit 1 is clear, the font can be embedded. 1442ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // If bit 2 is set, the embedding is read-only. 1443ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (otm.otmfsType & 0x1) { 1444ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fType = SkAdvancedTypefaceMetrics::kNotEmbeddable_Font; 14450e6dc0a320985ffd31f77eed8a41e62132b9ba95ctguil@chromium.org } else if (perGlyphInfo & 14460e6dc0a320985ffd31f77eed8a41e62132b9ba95ctguil@chromium.org SkAdvancedTypefaceMetrics::kHAdvance_PerGlyphInfo) { 14475aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org if (info->fStyle & SkAdvancedTypefaceMetrics::kFixedPitch_Style) { 14485aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org appendRange(&info->fGlyphWidths, 0); 14495aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org info->fGlyphWidths->fAdvance.append(1, &min_width); 14505aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org finishRange(info->fGlyphWidths.get(), 0, 14515aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org SkAdvancedTypefaceMetrics::WidthRange::kDefault); 14525aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org } else { 14535aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org info->fGlyphWidths.reset( 145437ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org getAdvanceData(hdc, 145537ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org glyphCount, 145637ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org glyphIDs, 145737ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org glyphIDsCount, 145837ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org &getWidthAdvance)); 14595aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org } 1460ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1461ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1462ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comError: 1463ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SelectObject(hdc, savefont); 1464ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteObject(designFont); 1465ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteObject(font); 1466ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteDC(hdc); 1467ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1468ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return info; 1469ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1470ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1471a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com//Dummy representation of a Base64 encoded GUID from create_unique_font_name. 1472a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#define BASE64_GUID_ID "XXXXXXXXXXXXXXXXXXXXXXXX" 1473a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com//Length of GUID representation from create_id, including NULL terminator. 1474a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#define BASE64_GUID_ID_LEN SK_ARRAY_COUNT(BASE64_GUID_ID) 1475a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1476a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comSK_COMPILE_ASSERT(BASE64_GUID_ID_LEN < LF_FACESIZE, GUID_longer_than_facesize); 1477a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1478a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 1479a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com NameID 6 Postscript names cannot have the character '/'. 1480a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com It would be easier to hex encode the GUID, but that is 32 bytes, 1481a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com and many systems have issues with names longer than 28 bytes. 1482a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com The following need not be any standard base64 encoding. 1483a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com The encoded value is never decoded. 1484a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com*/ 1485d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.comstatic const char postscript_safe_base64_encode[] = 1486a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com "ABCDEFGHIJKLMNOPQRSTUVWXYZ" 1487a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com "abcdefghijklmnopqrstuvwxyz" 1488a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com "0123456789-_="; 1489a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1490a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 1491a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com Formats a GUID into Base64 and places it into buffer. 1492a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com buffer should have space for at least BASE64_GUID_ID_LEN characters. 1493a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com The string will always be null terminated. 1494a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com XXXXXXXXXXXXXXXXXXXXXXXX0 1495a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 1496a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comstatic void format_guid_b64(const GUID& guid, char* buffer, size_t bufferSize) { 1497a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com SkASSERT(bufferSize >= BASE64_GUID_ID_LEN); 1498a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com size_t written = SkBase64::Encode(&guid, sizeof(guid), buffer, postscript_safe_base64_encode); 1499a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com SkASSERT(written < LF_FACESIZE); 1500a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com buffer[written] = '\0'; 1501a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com} 1502a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1503a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 1504a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com Creates a Base64 encoded GUID and places it into buffer. 1505a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com buffer should have space for at least BASE64_GUID_ID_LEN characters. 1506a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com The string will always be null terminated. 1507a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com XXXXXXXXXXXXXXXXXXXXXXXX0 1508a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 1509a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comstatic HRESULT create_unique_font_name(char* buffer, size_t bufferSize) { 1510a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com GUID guid = {}; 1511a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com if (FAILED(CoCreateGuid(&guid))) { 1512a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return E_UNEXPECTED; 1513a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1514a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com format_guid_b64(guid, buffer, bufferSize); 1515a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1516a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return S_OK; 1517a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com} 1518a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1519a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 1520a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com Introduces a font to GDI. On failure will return NULL. The returned handle 1521a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com should eventually be passed to RemoveFontMemResourceEx. 1522a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com*/ 1523a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comstatic HANDLE activate_font(SkData* fontData) { 1524a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com DWORD numFonts = 0; 1525a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com //AddFontMemResourceEx just copies the data, but does not specify const. 1526a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com HANDLE fontHandle = AddFontMemResourceEx(const_cast<void*>(fontData->data()), 1527a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com fontData->size(), 1528a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 0, 1529a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com &numFonts); 1530a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1531a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com if (fontHandle != NULL && numFonts < 1) { 1532a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com RemoveFontMemResourceEx(fontHandle); 1533a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return NULL; 1534a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1535a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1536a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return fontHandle; 1537a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com} 1538a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1539ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comSkTypeface* SkFontHost::CreateTypefaceFromStream(SkStream* stream) { 1540a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Create a unique and unpredictable font name. 1541a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Avoids collisions and access from CSS. 1542a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com char familyName[BASE64_GUID_ID_LEN]; 1543a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com const int familyNameSize = SK_ARRAY_COUNT(familyName); 1544a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com if (FAILED(create_unique_font_name(familyName, familyNameSize))) { 1545a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return NULL; 1546a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1547d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com 1548a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Change the name of the font. 1549e9bbee397ce96aa6642a42823feb1d7c4a8ffd8bbungeman@google.com SkAutoTUnref<SkData> rewrittenFontData(SkOTUtils::RenameFont(stream, familyName, familyNameSize-1)); 1550e9bbee397ce96aa6642a42823feb1d7c4a8ffd8bbungeman@google.com if (NULL == rewrittenFontData.get()) { 1551a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return NULL; 1552a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1553ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1554a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Register the font with GDI. 1555e9bbee397ce96aa6642a42823feb1d7c4a8ffd8bbungeman@google.com HANDLE fontReference = activate_font(rewrittenFontData.get()); 1556a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com if (NULL == fontReference) { 1557a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return NULL; 1558a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1559a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1560a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Create the typeface. 1561a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com LOGFONT lf; 1562a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com logfont_for_name(familyName, lf); 1563a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1564a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return SkCreateFontMemResourceTypefaceFromLOGFONT(lf, fontReference); 1565ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1566ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 15670042b9c2a2e6fe954cdfbcd5a5b7449cdf41a4c3reed@google.comSkStream* LogFontTypeface::onOpenStream(int* ttcIndex) const { 15680042b9c2a2e6fe954cdfbcd5a5b7449cdf41a4c3reed@google.com *ttcIndex = 0; 15690042b9c2a2e6fe954cdfbcd5a5b7449cdf41a4c3reed@google.com 1570f4c2622a1a3489988f2d85a81fdc132b17a92bddctguil@chromium.org const DWORD kTTCTag = 1571f4c2622a1a3489988f2d85a81fdc132b17a92bddctguil@chromium.org SkEndian_SwapBE32(SkSetFourByteTag('t', 't', 'c', 'f')); 15720042b9c2a2e6fe954cdfbcd5a5b7449cdf41a4c3reed@google.com LOGFONT lf = fLogFont; 1573ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1574ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HDC hdc = ::CreateCompatibleDC(NULL); 157559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com HFONT font = CreateFontIndirect(&lf); 1576ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT savefont = (HFONT)SelectObject(hdc, font); 1577ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1578d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org SkMemoryStream* stream = NULL; 1579d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org DWORD tables[2] = {kTTCTag, 0}; 1580d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org for (int i = 0; i < SK_ARRAY_COUNT(tables); i++) { 1581d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org size_t bufferSize = GetFontData(hdc, tables[i], 0, NULL, 0); 158239698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (bufferSize == GDI_ERROR) { 1583055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com call_ensure_accessible(lf); 158439698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com bufferSize = GetFontData(hdc, tables[i], 0, NULL, 0); 158539698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 1586d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org if (bufferSize != GDI_ERROR) { 1587d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org stream = new SkMemoryStream(bufferSize); 1588d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org if (GetFontData(hdc, tables[i], 0, (void*)stream->getMemoryBase(), 1589d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org bufferSize)) { 1590d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org break; 1591d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org } else { 1592d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org delete stream; 1593d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org stream = NULL; 1594d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org } 1595d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org } 1596ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1597ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1598ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SelectObject(hdc, savefont); 1599ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteObject(font); 1600ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteDC(hdc); 1601ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1602ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return stream; 1603ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1604ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 16050da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.comSkScalerContext* LogFontTypeface::onCreateScalerContext(const SkDescriptor* desc) const { 16060da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.com return SkNEW_ARGS(SkScalerContext_Windows, (const_cast<LogFontTypeface*>(this), desc)); 1607ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1608ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1609ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com/** Return the closest matching typeface given either an existing family 1610ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com (specified by a typeface in that family) or by a familyName, and a 1611ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com requested style. 161290d812b77ab025d5fd01dab904287f5c5bf56228bungeman@google.com 1) If familyFace is null, use familyName. 161390d812b77ab025d5fd01dab904287f5c5bf56228bungeman@google.com 2) If familyName is null, use familyFace. 1614ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 3) If both are null, return the default font that best matches style 1615ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com This MUST not return NULL. 1616ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com */ 1617ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1618ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comSkTypeface* SkFontHost::CreateTypeface(const SkTypeface* familyFace, 1619ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com const char familyName[], 1620ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkTypeface::Style style) { 162159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LOGFONT lf; 1622ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (NULL == familyFace && NULL == familyName) { 162359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf = get_default_font(); 162459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } else if (familyFace) { 162559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LogFontTypeface* face = (LogFontTypeface*)familyFace; 162659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf = face->fLogFont; 1627ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 1628a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com logfont_for_name(familyName, lf); 1629ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 163059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com setStyle(&lf, style); 163159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com return SkCreateTypefaceFromLOGFONT(lf); 1632ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1633ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1634ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comSkTypeface* SkFontHost::CreateTypefaceFromFile(const char path[]) { 1635f381162e5616daacdbcc06d693aca5111aeeebe8mike@reedtribe.org SkAutoTUnref<SkStream> stream(SkStream::NewFromFile(path)); 1636f381162e5616daacdbcc06d693aca5111aeeebe8mike@reedtribe.org return stream.get() ? CreateTypefaceFromStream(stream) : NULL; 1637ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1638ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 16390da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.comvoid LogFontTypeface::onFilterRec(SkScalerContextRec* rec) const { 1640e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com unsigned flagsWeDontSupport = SkScalerContext::kDevKernText_Flag | 1641e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kAutohinting_Flag | 1642e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kEmbeddedBitmapText_Flag | 1643e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kEmbolden_Flag | 1644c84547a8d3cb04f0547db282b34e26abfbe64ec3bungeman@google.com SkScalerContext::kSubpixelPositioning_Flag | 1645e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kLCD_BGROrder_Flag | 1646e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kLCD_Vertical_Flag; 1647e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com rec->fFlags &= ~flagsWeDontSupport; 1648e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com 1649e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkPaint::Hinting h = rec->getHinting(); 1650da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com 1651da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com // I think we can support no-hinting, if we get hires outlines and just 1652da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com // use skia to rasterize into a gray-scale mask... 1653da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com#if 0 1654e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com switch (h) { 1655e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kNo_Hinting: 1656e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kSlight_Hinting: 1657e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com h = SkPaint::kNo_Hinting; 1658e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com break; 1659e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kNormal_Hinting: 1660e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kFull_Hinting: 1661e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com h = SkPaint::kNormal_Hinting; 1662e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com break; 1663e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com default: 16640c00f21fee3f5cfa3aa7e5d46ff94cb8cf340451tomhudson@google.com SkDEBUGFAIL("unknown hinting"); 1665e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com } 1666da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com#else 1667da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com h = SkPaint::kNormal_Hinting; 1668da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com#endif 1669e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com rec->setHinting(h); 1670da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com 16719181aa84aa288d2bc3ab079b6b40a79ac87d8807reed@google.com// turn this off since GDI might turn A8 into BW! Need a bigger fix. 16729181aa84aa288d2bc3ab079b6b40a79ac87d8807reed@google.com#if 0 1673da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com // Disable LCD when rotated, since GDI's output is ugly 1674da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com if (isLCD(*rec) && !isAxisAligned(*rec)) { 1675da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com rec->fMaskFormat = SkMask::kA8_Format; 1676da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com } 16779181aa84aa288d2bc3ab079b6b40a79ac87d8807reed@google.com#endif 1678754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com 16790da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.com if (!fCanBeLCD && isLCD(*rec)) { 1680cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com rec->fMaskFormat = SkMask::kA8_Format; 1681cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com rec->fFlags &= ~SkScalerContext::kGenA8FromLCD_Flag; 1682754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } 1683754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com} 1684