SkFontHost_win.cpp revision 070da5edcb1c6e9b9507f06a5e2c270e1c1fd796
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 30759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.comstatic void GetLogFontByID(SkFontID fontID, LOGFONT* lf) { 308a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com LogFontTypeface* face = static_cast<LogFontTypeface*>(SkTypefaceCache::FindByID(fontID)); 30959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com if (face) { 31059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com *lf = face->fLogFont; 31159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } else { 31259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com sk_bzero(lf, sizeof(LOGFONT)); 31359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } 31459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com} 31559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 3166744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// Construct Glyph to Unicode table. 3176744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// Unicode code points that require conjugate pairs in utf16 are not 3186744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// supported. 3196744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// TODO(arthurhsu): Add support for conjugate pairs. It looks like that may 3206744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// require parsing the TTF cmap table (platform 4, encoding 12) directly instead 3216744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// of calling GetFontUnicodeRange(). 3226744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.orgstatic void populate_glyph_to_unicode(HDC fontHdc, const unsigned glyphCount, 3236744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkTDArray<SkUnichar>* glyphToUnicode) { 3246744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org DWORD glyphSetBufferSize = GetFontUnicodeRanges(fontHdc, NULL); 3256744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org if (!glyphSetBufferSize) { 3266744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org return; 3276744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 3286744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 3296744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkAutoTDeleteArray<BYTE> glyphSetBuffer(new BYTE[glyphSetBufferSize]); 3306744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org GLYPHSET* glyphSet = 3316744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org reinterpret_cast<LPGLYPHSET>(glyphSetBuffer.get()); 3326744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org if (GetFontUnicodeRanges(fontHdc, glyphSet) != glyphSetBufferSize) { 3336744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org return; 3346744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 3356744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 3366744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org glyphToUnicode->setCount(glyphCount); 3376744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org memset(glyphToUnicode->begin(), 0, glyphCount * sizeof(SkUnichar)); 3386744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org for (DWORD i = 0; i < glyphSet->cRanges; ++i) { 3396744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // There is no guarantee that within a Unicode range, the corresponding 3406744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // glyph id in a font file are continuous. So, even if we have ranges, 3416744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // we can't just use the first and last entry of the range to compute 3426744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // result. We need to enumerate them one by one. 3436744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org int count = glyphSet->ranges[i].cGlyphs; 3446744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkAutoTArray<WCHAR> chars(count + 1); 3456744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org chars[count] = 0; // termintate string 3466744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkAutoTArray<WORD> glyph(count); 3476744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org for (USHORT j = 0; j < count; ++j) { 3486744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org chars[j] = glyphSet->ranges[i].wcLow + j; 3496744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 3506744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org GetGlyphIndicesW(fontHdc, chars.get(), count, glyph.get(), 3516744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org GGI_MARK_NONEXISTING_GLYPHS); 3526744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // If the glyph ID is valid, and the glyph is not mapped, then we will 3536744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // fill in the char id into the vector. If the glyph is mapped already, 3546744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // skip it. 3556744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // TODO(arthurhsu): better improve this. e.g. Get all used char ids from 3566744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // font cache, then generate this mapping table from there. It's 3576744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // unlikely to have collisions since glyph reuse happens mostly for 3586744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // different Unicode pages. 3596744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org for (USHORT j = 0; j < count; ++j) { 3606744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org if (glyph[j] != 0xffff && glyph[j] < glyphCount && 3616744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org (*glyphToUnicode)[glyph[j]] == 0) { 3626744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org (*glyphToUnicode)[glyph[j]] = chars[j]; 3636744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 3646744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 3656744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 3666744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org} 3676744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 36899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com////////////////////////////////////////////////////////////////////////////////////// 36999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 37099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.comstatic int alignTo32(int n) { 37199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com return (n + 31) & ~31; 37299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com} 37399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 37499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.comstruct MyBitmapInfo : public BITMAPINFO { 37599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com RGBQUAD fMoreSpaceForColors[1]; 37699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com}; 37799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 37899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.comclass HDCOffscreen { 37999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.compublic: 38099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HDCOffscreen() { 38199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fFont = 0; 38299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fDC = 0; 38399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fBM = 0; 38499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fBits = NULL; 38599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fWidth = fHeight = 0; 38699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fIsBW = false; 38799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 38899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 38999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com ~HDCOffscreen() { 39099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (fDC) { 39199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com DeleteDC(fDC); 39299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 39399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (fBM) { 39499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com DeleteObject(fBM); 39599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 39699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 39799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 39899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com void init(HFONT font, const XFORM& xform) { 39999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fFont = font; 40099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fXform = xform; 40199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 40299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 40397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const void* draw(const SkGlyph&, bool isBW, size_t* srcRBPtr); 40499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 40599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.comprivate: 40699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HDC fDC; 40799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HBITMAP fBM; 40899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HFONT fFont; 40999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com XFORM fXform; 41099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com void* fBits; // points into fBM 41199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com int fWidth; 41299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com int fHeight; 41399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com bool fIsBW; 414754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com 415754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com enum { 416754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com // will always trigger us to reset the color, since we 4176f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com // should only store 0 or 0x00FFFFFF or gray (0x007F7F7F) 418754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com kInvalid_Color = 12345 419754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com }; 42099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com}; 42199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 422754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.comconst void* HDCOffscreen::draw(const SkGlyph& glyph, bool isBW, 42397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com size_t* srcRBPtr) { 42499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (0 == fDC) { 42599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fDC = CreateCompatibleDC(0); 42699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (0 == fDC) { 42799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com return NULL; 42899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 42999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SetGraphicsMode(fDC, GM_ADVANCED); 43099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SetBkMode(fDC, TRANSPARENT); 43199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SetTextAlign(fDC, TA_LEFT | TA_BASELINE); 43299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SelectObject(fDC, fFont); 43397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com 43497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com COLORREF color = 0x00FFFFFF; 435b58a639b2fbe919489654bb506efdb024a308a8ebsalomon@google.com SkDEBUGCODE(COLORREF prev =) SetTextColor(fDC, color); 43697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com SkASSERT(prev != CLR_INVALID); 43799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 43899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 43999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (fBM && (fIsBW != isBW || fWidth < glyph.fWidth || fHeight < glyph.fHeight)) { 44099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com DeleteObject(fBM); 44199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fBM = 0; 44299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 443754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com fIsBW = isBW; 44499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 44599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fWidth = SkMax32(fWidth, glyph.fWidth); 44699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fHeight = SkMax32(fHeight, glyph.fHeight); 44799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 44899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com int biWidth = isBW ? alignTo32(fWidth) : fWidth; 44999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 45099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (0 == fBM) { 45199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com MyBitmapInfo info; 45299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com sk_bzero(&info, sizeof(info)); 45399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (isBW) { 45499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com RGBQUAD blackQuad = { 0, 0, 0, 0 }; 45599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com RGBQUAD whiteQuad = { 0xFF, 0xFF, 0xFF, 0 }; 45699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiColors[0] = blackQuad; 45799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiColors[1] = whiteQuad; 45899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 45999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biSize = sizeof(info.bmiHeader); 46099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biWidth = biWidth; 46199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biHeight = fHeight; 46299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biPlanes = 1; 46399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biBitCount = isBW ? 1 : 32; 46499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biCompression = BI_RGB; 46599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (isBW) { 46699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biClrUsed = 2; 46799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 46899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fBM = CreateDIBSection(fDC, &info, DIB_RGB_COLORS, &fBits, 0, 0); 46999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (0 == fBM) { 47099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com return NULL; 47199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 47299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SelectObject(fDC, fBM); 47399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 47499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 47599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com // erase 47699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com size_t srcRB = isBW ? (biWidth >> 3) : (fWidth << 2); 47799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com size_t size = fHeight * srcRB; 47897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com memset(fBits, 0, size); 47999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 48099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com XFORM xform = fXform; 48199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com xform.eDx = (float)-glyph.fLeft; 48299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com xform.eDy = (float)-glyph.fTop; 48399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SetWorldTransform(fDC, &xform); 48499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 48599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com uint16_t glyphID = glyph.getGlyphID(); 48639698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com BOOL ret = ExtTextOutW(fDC, 0, 0, ETO_GLYPH_INDEX, NULL, reinterpret_cast<LPCWSTR>(&glyphID), 1, NULL); 48799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com GdiFlush(); 48839698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (0 == ret) { 48939698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com return NULL; 49039698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 49199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com *srcRBPtr = srcRB; 49299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com // offset to the start of the image 49399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com return (const char*)fBits + (fHeight - glyph.fHeight) * srcRB; 49499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com} 49599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 496b8a5c618d2e18d71707ae4dcafbe5153d7ff427freed@google.com////////////////////////////////////////////////////////////////////////////// 49759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 498ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comclass SkScalerContext_Windows : public SkScalerContext { 499ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.compublic: 5000da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.com SkScalerContext_Windows(SkTypeface*, const SkDescriptor* desc); 501ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com virtual ~SkScalerContext_Windows(); 502ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 503ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comprotected: 50497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com virtual unsigned generateGlyphCount() SK_OVERRIDE; 50597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com virtual uint16_t generateCharToGlyph(SkUnichar uni) SK_OVERRIDE; 50697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com virtual void generateAdvance(SkGlyph* glyph) SK_OVERRIDE; 50797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com virtual void generateMetrics(SkGlyph* glyph) SK_OVERRIDE; 508a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com virtual void generateImage(const SkGlyph& glyph) SK_OVERRIDE; 50997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com virtual void generatePath(const SkGlyph& glyph, SkPath* path) SK_OVERRIDE; 510a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com virtual void generateFontMetrics(SkPaint::FontMetrics* mX, 511a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com SkPaint::FontMetrics* mY) SK_OVERRIDE; 51299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 513ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comprivate: 51499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HDCOffscreen fOffscreen; 5155aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org SkScalar fScale; // to get from canonical size to real size 516ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com MAT2 fMat22; 517ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HDC fDDC; 518ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT fSavefont; 519ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT fFont; 520ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SCRIPT_CACHE fSC; 521ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int fGlyphCount; 5221dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 5231dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com HFONT fHiResFont; 5241dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com MAT2 fMat22Identity; 5251dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com SkMatrix fHiResMatrix; 526a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com enum Type { 527a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com kTrueType_Type, kBitmap_Type, 528a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } fType; 529a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com TEXTMETRIC fTM; 530ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com}; 531ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 532ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic float mul2float(SkScalar a, SkScalar b) { 533ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkScalarToFloat(SkScalarMul(a, b)); 534ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 535ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 536ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic FIXED float2FIXED(float x) { 537ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkFixedToFIXED(SkFloatToFixed(x)); 538ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 539ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 5401771cbf43d9a1334e3d870c635b4215bb888dd98digit@google.comSK_DECLARE_STATIC_MUTEX(gFTMutex); 54159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 5421dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com#define HIRES_TEXTSIZE 2048 5431dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com#define HIRES_SHIFT 11 5441dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.comstatic inline SkFixed HiResToFixed(int value) { 5451dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com return value << (16 - HIRES_SHIFT); 5461dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com} 5471dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 5481dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.comstatic bool needHiResMetrics(const SkScalar mat[2][2]) { 5491dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com return mat[1][0] || mat[0][1]; 5501dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com} 5511dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 55282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.comstatic BYTE compute_quality(const SkScalerContext::Rec& rec) { 55382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com switch (rec.fMaskFormat) { 55482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com case SkMask::kBW_Format: 55582a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com return NONANTIALIASED_QUALITY; 55682a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com case SkMask::kLCD16_Format: 55782a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com case SkMask::kLCD32_Format: 55882a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com return CLEARTYPE_QUALITY; 55982a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com default: 5608351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com if (rec.fFlags & SkScalerContext::kGenA8FromLCD_Flag) { 5618351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com return CLEARTYPE_QUALITY; 5628351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com } else { 5638351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com return ANTIALIASED_QUALITY; 5648351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com } 56582a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com } 56682a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com} 56782a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 568055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.comSkScalerContext_Windows::SkScalerContext_Windows(SkTypeface* rawTypeface, 5690da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.com const SkDescriptor* desc) 570055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com : SkScalerContext(rawTypeface, desc) 571055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com , fDDC(0) 572055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com , fFont(0) 573055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com , fSavefont(0) 574055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com , fSC(0) 575ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com , fGlyphCount(-1) { 576ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkAutoMutexAcquire ac(gFTMutex); 577ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 578055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com LogFontTypeface* typeface = reinterpret_cast<LogFontTypeface*>(rawTypeface); 579055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com 580ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fDDC = ::CreateCompatibleDC(NULL); 5811dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com SetGraphicsMode(fDDC, GM_ADVANCED); 582ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SetBkMode(fDDC, TRANSPARENT); 583ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 584ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Scaling by the DPI is inconsistent with how Skia draws elsewhere 585ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com //SkScalar height = -(fRec.fTextSize * GetDeviceCaps(ddc, LOGPIXELSY) / 72); 586055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com LOGFONT lf = typeface->fLogFont; 587ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com lf.lfHeight = -gCanonicalTextSize; 58882a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com lf.lfQuality = compute_quality(fRec); 589ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fFont = CreateFontIndirect(&lf); 5901dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 5911dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com // if we're rotated, or want fractional widths, create a hires font 5921dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com fHiResFont = 0; 593c84547a8d3cb04f0547db282b34e26abfbe64ec3bungeman@google.com if (needHiResMetrics(fRec.fPost2x2)) { 5941dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com lf.lfHeight = -HIRES_TEXTSIZE; 5951dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com fHiResFont = CreateFontIndirect(&lf); 5961dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 5971dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com fMat22Identity.eM11 = fMat22Identity.eM22 = SkFixedToFIXED(SK_Fixed1); 5981dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com fMat22Identity.eM12 = fMat22Identity.eM21 = SkFixedToFIXED(0); 5991dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 6001dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com // construct a matrix to go from HIRES logical units to our device units 6011dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com fRec.getSingleMatrix(&fHiResMatrix); 6021dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com SkScalar scale = SkScalarInvert(SkIntToScalar(HIRES_TEXTSIZE)); 6031dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com fHiResMatrix.preScale(scale, scale); 6041dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com } 605ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fSavefont = (HFONT)SelectObject(fDDC, fFont); 606a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 607a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (0 == GetTextMetrics(fDDC, &fTM)) { 608055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com call_ensure_accessible(lf); 609a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (0 == GetTextMetrics(fDDC, &fTM)) { 610a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fTM.tmPitchAndFamily = TMPF_TRUETYPE; 611a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 612a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 613a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com // Used a logfont on a memory context, should never get a device font. 61490b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com // Therefore all TMPF_DEVICE will be PostScript fonts. 61590b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com 61690b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com // If TMPF_VECTOR is set, one of TMPF_TRUETYPE or TMPF_DEVICE must be set, 61790b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com // otherwise we have a vector FON, which we don't support. 61890b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com // This was determined by testing with Type1 PFM/PFB and OpenTypeCFF OTF, 61990b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com // as well as looking at Wine bugs and sources. 62090b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com SkASSERT(!(fTM.tmPitchAndFamily & TMPF_VECTOR) || 62190b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com (fTM.tmPitchAndFamily & (TMPF_TRUETYPE | TMPF_DEVICE))); 62290b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com 623d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com XFORM xform; 62490b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com if (fTM.tmPitchAndFamily & TMPF_VECTOR) { 625a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com // Truetype or PostScript. 626a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com // Stroked FON also gets here (TMPF_VECTOR), but we don't handle it. 627a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fType = SkScalerContext_Windows::kTrueType_Type; 628a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fScale = fRec.fTextSize / gCanonicalTextSize; 629a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 630d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // fPost2x2 is column-major, left handed (y down). 631d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // XFORM 2x2 is row-major, left handed (y down). 632d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM11 = mul2float(fScale, fRec.fPost2x2[0][0]); 633d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM12 = mul2float(fScale, fRec.fPost2x2[1][0]); 634d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM21 = mul2float(fScale, fRec.fPost2x2[0][1]); 635d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM22 = mul2float(fScale, fRec.fPost2x2[1][1]); 636d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eDx = 0; 637d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eDy = 0; 638d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com 639d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // MAT2 is row major, right handed (y up). 640d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM11 = float2FIXED(xform.eM11); 641d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM12 = float2FIXED(-xform.eM12); 642d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM21 = float2FIXED(-xform.eM21); 643d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM22 = float2FIXED(xform.eM22); 644a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 645a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (needToRenderWithSkia(fRec)) { 646a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com this->forceGenerateImageFromPath(); 647a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 648a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 649a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } else { 650a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com // Assume bitmap 651a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fType = SkScalerContext_Windows::kBitmap_Type; 652a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fScale = SK_Scalar1; 653a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 654d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM11 = 1.0f; 655d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM12 = 0.0f; 656d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM21 = 0.0f; 657d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM22 = 1.0f; 658d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eDx = 0.0f; 659d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eDy = 0.0f; 660a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 661d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // fPost2x2 is column-major, left handed (y down). 662d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // MAT2 is row major, right handed (y up). 663a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fMat22.eM11 = SkScalarToFIXED(fRec.fPost2x2[0][0]); 664d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM12 = SkScalarToFIXED(-fRec.fPost2x2[1][0]); 665a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fMat22.eM21 = SkScalarToFIXED(-fRec.fPost2x2[0][1]); 666d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM22 = SkScalarToFIXED(fRec.fPost2x2[1][1]); 667a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 668a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com lf.lfHeight = -SkScalarCeilToInt(fRec.fTextSize); 669a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com HFONT bitmapFont = CreateFontIndirect(&lf); 670a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com SelectObject(fDDC, bitmapFont); 671a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com ::DeleteObject(fFont); 672a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fFont = bitmapFont; 673a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 674a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (0 == GetTextMetrics(fDDC, &fTM)) { 675055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com call_ensure_accessible(lf); 676a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com //if the following fails, we'll just draw at gCanonicalTextSize. 677a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com GetTextMetrics(fDDC, &fTM); 678a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 679a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com } 68099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 681d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fOffscreen.init(fFont, xform); 682ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 683ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 684ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comSkScalerContext_Windows::~SkScalerContext_Windows() { 685ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fDDC) { 686ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::SelectObject(fDDC, fSavefont); 687ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::DeleteDC(fDDC); 688ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 689ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fFont) { 690ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::DeleteObject(fFont); 691ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 6921dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com if (fHiResFont) { 6931dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com ::DeleteObject(fHiResFont); 6941dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com } 695ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fSC) { 696ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::ScriptFreeCache(&fSC); 697ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 698ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 699ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 700ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comunsigned SkScalerContext_Windows::generateGlyphCount() { 701ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fGlyphCount < 0) { 702a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (fType == SkScalerContext_Windows::kBitmap_Type) { 703a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com return fTM.tmLastChar; 704a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 705a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fGlyphCount = calculateOutlineGlyphCount(fDDC); 706ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 707ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return fGlyphCount; 708ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 709ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 710ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comuint16_t SkScalerContext_Windows::generateCharToGlyph(SkUnichar uni) { 711ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com uint16_t index = 0; 712ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com WCHAR c[2]; 713ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // TODO(ctguil): Support characters that generate more than one glyph. 714ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (SkUTF16_FromUnichar(uni, (uint16_t*)c) == 1) { 715ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Type1 fonts fail with uniscribe API. Use GetGlyphIndices for plane 0. 716ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkAssertResult(GetGlyphIndicesW(fDDC, c, 1, &index, 0)); 717ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 718ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Use uniscribe to detemine glyph index for non-BMP characters. 719ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Need to add extra item to SCRIPT_ITEM to work around a bug in older 720ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // windows versions. https://bugzilla.mozilla.org/show_bug.cgi?id=366643 721ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SCRIPT_ITEM si[2 + 1]; 722ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int items; 723ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkAssertResult( 724ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SUCCEEDED(ScriptItemize(c, 2, 2, NULL, NULL, si, &items))); 725ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 726ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com WORD log[2]; 727ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SCRIPT_VISATTR vsa; 728ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int glyphs; 729ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkAssertResult(SUCCEEDED(ScriptShape( 730ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fDDC, &fSC, c, 2, 1, &si[0].a, &index, log, &vsa, &glyphs))); 731ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 732ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return index; 733ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 734ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 735ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comvoid SkScalerContext_Windows::generateAdvance(SkGlyph* glyph) { 736ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com this->generateMetrics(glyph); 737ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 738ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 739ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comvoid SkScalerContext_Windows::generateMetrics(SkGlyph* glyph) { 740ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(fDDC); 741ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 742a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (fType == SkScalerContext_Windows::kBitmap_Type) { 743a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com SIZE size; 744a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com WORD glyphs = glyph->getGlyphID(0); 745a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (0 == GetTextExtentPointI(fDDC, &glyphs, 1, &size)) { 746a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fWidth = SkToS16(fTM.tmMaxCharWidth); 747a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } else { 748a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fWidth = SkToS16(size.cx); 749a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 750a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fHeight = SkToS16(size.cy); 751a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 752a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fTop = SkToS16(-fTM.tmAscent); 753a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fLeft = SkToS16(0); 754a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fAdvanceX = SkIntToFixed(glyph->fWidth); 755a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fAdvanceY = 0; 756a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 757d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // Apply matrix to advance. 758a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fAdvanceY = SkFixedMul(SkFIXEDToFixed(fMat22.eM21), glyph->fAdvanceX); 759a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fAdvanceX = SkFixedMul(SkFIXEDToFixed(fMat22.eM11), glyph->fAdvanceX); 760a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 761a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com return; 762a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 763a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 764d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com UINT glyphId = glyph->getGlyphID(0); 765d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com 766ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com GLYPHMETRICS gm; 7671dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com sk_bzero(&gm, sizeof(gm)); 768ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 769d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com DWORD status = GetGlyphOutlineW(fDDC, glyphId, GGO_METRICS | GGO_GLYPH_INDEX, &gm, 0, NULL, &fMat22); 770d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (GDI_ERROR == status) { 771055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com LogFontTypeface::EnsureAccessible(this->getTypeface()); 772d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com status = GetGlyphOutlineW(fDDC, glyphId, GGO_METRICS | GGO_GLYPH_INDEX, &gm, 0, NULL, &fMat22); 773d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (GDI_ERROR == status) { 774d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->zeroMetrics(); 775d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com return; 776d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 77739698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 778ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 779d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com bool empty = false; 780d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // The black box is either the embedded bitmap size or the outline extent. 781d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // It is 1x1 if nothing is to be drawn, but will also be 1x1 if something very small 782d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // is to be drawn, like a '.'. We need to outset '.' but do not wish to outset ' '. 783d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (1 == gm.gmBlackBoxX && 1 == gm.gmBlackBoxY) { 784d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // If GetGlyphOutline with GGO_NATIVE returns 0, we know there was no outline. 785d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com DWORD bufferSize = GetGlyphOutlineW(fDDC, glyphId, GGO_NATIVE | GGO_GLYPH_INDEX, &gm, 0, NULL, &fMat22); 786d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com empty = (0 == bufferSize); 787d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 7881dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 789d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fTop = SkToS16(-gm.gmptGlyphOrigin.y); 790d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fLeft = SkToS16(gm.gmptGlyphOrigin.x); 791d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (empty) { 792d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fWidth = 0; 793d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fHeight = 0; 794ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 795d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // Outset, since the image may bleed out of the black box. 796d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // For embedded bitmaps the black box should be exact. 797d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // For outlines we need to outset by 1 in all directions for bleed. 798d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // For ClearType we need to outset by 2 for bleed. 799d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fWidth = gm.gmBlackBoxX + 4; 800d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fHeight = gm.gmBlackBoxY + 4; 801d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fTop -= 2; 802d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fLeft -= 2; 803d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 804d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fAdvanceX = SkIntToFixed(gm.gmCellIncX); 805d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fAdvanceY = SkIntToFixed(gm.gmCellIncY); 806d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fRsbDelta = 0; 807d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fLsbDelta = 0; 808d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com 809d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (fHiResFont) { 810d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SelectObject(fDDC, fHiResFont); 811d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com sk_bzero(&gm, sizeof(gm)); 812d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com status = GetGlyphOutlineW(fDDC, glyphId, GGO_METRICS | GGO_GLYPH_INDEX, &gm, 0, NULL, &fMat22Identity); 813d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (GDI_ERROR != status) { 814d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkPoint advance; 815d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fHiResMatrix.mapXY(SkIntToScalar(gm.gmCellIncX), SkIntToScalar(gm.gmCellIncY), &advance); 816d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fAdvanceX = SkScalarToFixed(advance.fX); 817d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fAdvanceY = SkScalarToFixed(advance.fY); 818d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 819d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SelectObject(fDDC, fFont); 820ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 821ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 822ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 823ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comvoid SkScalerContext_Windows::generateFontMetrics(SkPaint::FontMetrics* mx, SkPaint::FontMetrics* my) { 824ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com// Note: This code was borrowed from generateLineHeight, which has a note 825ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com// stating that it may be incorrect. 826ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (!(mx || my)) 827ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return; 828ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 829ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(fDDC); 830ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 831a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (fType == SkScalerContext_Windows::kBitmap_Type) { 832a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (mx) { 833a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com mx->fTop = SkIntToScalar(-fTM.tmAscent); 834a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com mx->fAscent = SkIntToScalar(-fTM.tmAscent); 835a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com mx->fDescent = -SkIntToScalar(fTM.tmDescent); 836a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com mx->fBottom = SkIntToScalar(fTM.tmDescent); 837a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com mx->fLeading = SkIntToScalar(fTM.tmInternalLeading 838a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com + fTM.tmExternalLeading); 839a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 840a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 841a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (my) { 842a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com my->fTop = SkIntToScalar(-fTM.tmAscent); 843a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com my->fAscent = SkIntToScalar(-fTM.tmAscent); 844a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com my->fDescent = SkIntToScalar(-fTM.tmDescent); 845a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com my->fBottom = SkIntToScalar(fTM.tmDescent); 846a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com my->fLeading = SkIntToScalar(fTM.tmInternalLeading 847a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com + fTM.tmExternalLeading); 848a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 849a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com return; 850a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 851a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 852ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com OUTLINETEXTMETRIC otm; 853ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 854ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com uint32_t ret = GetOutlineTextMetrics(fDDC, sizeof(otm), &otm); 85539698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (GDI_ERROR == ret) { 856055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com LogFontTypeface::EnsureAccessible(this->getTypeface()); 85739698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com ret = GetOutlineTextMetrics(fDDC, sizeof(otm), &otm); 85839698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 859ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (sizeof(otm) != ret) { 860a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com return; 861ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 862ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 863ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (mx) { 864ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com mx->fTop = -fScale * otm.otmTextMetrics.tmAscent; 8655aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org mx->fAscent = -fScale * otm.otmAscent; 8665aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org mx->fDescent = -fScale * otm.otmDescent; 8675aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org mx->fBottom = fScale * otm.otmTextMetrics.tmDescent; 8685aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org mx->fLeading = fScale * (otm.otmTextMetrics.tmInternalLeading 8695aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org + otm.otmTextMetrics.tmExternalLeading); 870ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 871ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 872ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (my) { 8735aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org my->fTop = -fScale * otm.otmTextMetrics.tmAscent; 8745aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org my->fAscent = -fScale * otm.otmAscent; 8755aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org my->fDescent = -fScale * otm.otmDescent; 8765aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org my->fBottom = fScale * otm.otmTextMetrics.tmDescent; 8775aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org my->fLeading = fScale * (otm.otmTextMetrics.tmInternalLeading 8785aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org + otm.otmTextMetrics.tmExternalLeading); 879ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 880ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 881ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 8827430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com//////////////////////////////////////////////////////////////////////////////////////// 8837430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com 8847430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.comstatic void build_power_table(uint8_t table[], float ee) { 8857430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com for (int i = 0; i < 256; i++) { 8867430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com float x = i / 255.f; 88797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com x = sk_float_pow(x, ee); 8887430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com int xx = SkScalarRound(SkFloatToScalar(x * 255)); 8897430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com table[i] = SkToU8(xx); 8907430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com } 8917430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com} 8927430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com 89397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com/** 89497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * This will invert the gamma applied by GDI (gray-scale antialiased), so we 89597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * can get linear values. 89697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * 89797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * GDI grayscale appears to use a hard-coded gamma of 2.3. 89897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * 89997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * GDI grayscale appears to draw using the black and white rasterizer at four 90097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * times the size and then downsamples to compute the coverage mask. As a 90197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * result there are only seventeen total grays. This lack of fidelity means 90297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * that shifting into other color spaces is imprecise. 90397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com */ 90497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic const uint8_t* getInverseGammaTableGDI() { 90597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com static bool gInited; 90697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com static uint8_t gTableGdi[256]; 90797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com if (!gInited) { 90897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com build_power_table(gTableGdi, 2.3f); 90997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com gInited = true; 91097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } 91197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com return gTableGdi; 91297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com} 91397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com 91497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com/** 91597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * This will invert the gamma applied by GDI ClearType, so we can get linear 91697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * values. 91797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * 91897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * GDI ClearType uses SPI_GETFONTSMOOTHINGCONTRAST / 1000 as the gamma value. 91997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * If this value is not specified, the default is a gamma of 1.4. 92097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com */ 92197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic const uint8_t* getInverseGammaTableClearType() { 9227430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com static bool gInited; 92397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com static uint8_t gTableClearType[256]; 9247430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com if (!gInited) { 9257430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com UINT level = 0; 9267430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com if (!SystemParametersInfo(SPI_GETFONTSMOOTHINGCONTRAST, 0, &level, 0) || !level) { 9277430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com // can't get the data, so use a default 9287430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com level = 1400; 9297430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com } 93097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com build_power_table(gTableClearType, level / 1000.0f); 9317430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com gInited = true; 9327430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com } 93397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com return gTableClearType; 9347430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com} 9357430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com 936ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkColorPriv.h" 937ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 9386385314686875ecb484d95b33fcbf08890b5144dbungeman@google.com//Cannot assume that the input rgb is gray due to possible setting of kGenA8FromLCD_Flag. 93997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 94097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic inline uint8_t rgb_to_a8(SkGdiRGB rgb, const uint8_t* table8) { 9416385314686875ecb484d95b33fcbf08890b5144dbungeman@google.com U8CPU r = (rgb >> 16) & 0xFF; 9426385314686875ecb484d95b33fcbf08890b5144dbungeman@google.com U8CPU g = (rgb >> 8) & 0xFF; 9436385314686875ecb484d95b33fcbf08890b5144dbungeman@google.com U8CPU b = (rgb >> 0) & 0xFF; 9441bfe01d06b896eca94c80d9af9a6bb30216b5e42bungeman@google.com return sk_apply_lut_if<APPLY_PREBLEND>(SkComputeLuminance(r, g, b), table8); 94582a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com} 94682a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 94797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 94897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic inline uint16_t rgb_to_lcd16(SkGdiRGB rgb, const uint8_t* tableR, 94997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableG, 95097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableB) { 95197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU r = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 16) & 0xFF, tableR); 95297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU g = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 8) & 0xFF, tableG); 95397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU b = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 0) & 0xFF, tableB); 95497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com return SkPack888ToRGB16(r, g, b); 955ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 956ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 95797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 95897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic inline SkPMColor rgb_to_lcd32(SkGdiRGB rgb, const uint8_t* tableR, 95997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableG, 96097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableB) { 96197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU r = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 16) & 0xFF, tableR); 96297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU g = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 8) & 0xFF, tableG); 96397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU b = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 0) & 0xFF, tableB); 96497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com return SkPackARGB32(0xFF, r, g, b); 965754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com} 966754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com 96782cff020b7e055f2d01686f060a884df842306edreed@google.com// Is this GDI color neither black nor white? If so, we have to keep this 96882cff020b7e055f2d01686f060a884df842306edreed@google.com// image as is, rather than smashing it down to a BW mask. 96982cff020b7e055f2d01686f060a884df842306edreed@google.com// 97082cff020b7e055f2d01686f060a884df842306edreed@google.com// returns int instead of bool, since we don't want/have to pay to convert 97182cff020b7e055f2d01686f060a884df842306edreed@google.com// the zero/non-zero value into a bool 97282cff020b7e055f2d01686f060a884df842306edreed@google.comstatic int is_not_black_or_white(SkGdiRGB c) { 97382cff020b7e055f2d01686f060a884df842306edreed@google.com // same as (but faster than) 97482cff020b7e055f2d01686f060a884df842306edreed@google.com // c &= 0x00FFFFFF; 97582cff020b7e055f2d01686f060a884df842306edreed@google.com // return 0 == c || 0x00FFFFFF == c; 97682cff020b7e055f2d01686f060a884df842306edreed@google.com return (c + (c & 1)) & 0x00FFFFFF; 9775e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 9785e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 9795e2df64215f12660ab26b96816f40ad8e32bf16freed@google.comstatic bool is_rgb_really_bw(const SkGdiRGB* src, int width, int height, int srcRB) { 9805e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int y = 0; y < height; ++y) { 9815e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int x = 0; x < width; ++x) { 98282cff020b7e055f2d01686f060a884df842306edreed@google.com if (is_not_black_or_white(src[x])) { 9835e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com return false; 9845e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 9855e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 9866f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com src = SkTAddByteOffset(src, srcRB); 9875e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 9885e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com return true; 9895e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 9905e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 99197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com// gdi's bitmap is upside-down, so we reverse dst walking in Y 99297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com// whenever we copy it into skia's buffer 9935e2df64215f12660ab26b96816f40ad8e32bf16freed@google.comstatic void rgb_to_bw(const SkGdiRGB* SK_RESTRICT src, size_t srcRB, 99497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const SkGlyph& glyph) { 9955e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const int width = glyph.fWidth; 9965e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const size_t dstRB = (width + 7) >> 3; 9975e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com uint8_t* SK_RESTRICT dst = (uint8_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 9985e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 9995e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com int byteCount = width >> 3; 10005e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com int bitCount = width & 7; 10015e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 10025e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com // adjust srcRB to skip the values in our byteCount loop, 10035e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com // since we increment src locally there 10045e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com srcRB -= byteCount * 8 * sizeof(SkGdiRGB); 10055e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 10065e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int y = 0; y < glyph.fHeight; ++y) { 10075e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com if (byteCount > 0) { 10085e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int i = 0; i < byteCount; ++i) { 10097a230142e01c5a8cf955be12a5f287589b551634reed@google.com unsigned byte = 0; 101097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[0] & (1 << 7); 101197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[1] & (1 << 6); 101297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[2] & (1 << 5); 101397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[3] & (1 << 4); 101497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[4] & (1 << 3); 101597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[5] & (1 << 2); 101697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[6] & (1 << 1); 101797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[7] & (1 << 0); 10186a8f14d9633b330fb8051581828a0aaf4403d1a9reed@google.com dst[i] = byte; 10195e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com src += 8; 10205e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 10215e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 10225e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com if (bitCount > 0) { 10235e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com unsigned byte = 0; 10245e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com unsigned mask = 0x80; 10255e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int i = 0; i < bitCount; i++) { 102697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[i] & mask; 10275e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com mask >>= 1; 10285e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 10295e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com dst[byteCount] = byte; 10305e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 10316f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com src = SkTAddByteOffset(src, srcRB); 10325e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com dst -= dstRB; 10335e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 10345e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 10355e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 103697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 10375e2df64215f12660ab26b96816f40ad8e32bf16freed@google.comstatic void rgb_to_a8(const SkGdiRGB* SK_RESTRICT src, size_t srcRB, 103897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const SkGlyph& glyph, const uint8_t* table8) { 10395e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const size_t dstRB = glyph.rowBytes(); 10405e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const int width = glyph.fWidth; 10415e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com uint8_t* SK_RESTRICT dst = (uint8_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 10425e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 10435e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int y = 0; y < glyph.fHeight; y++) { 10445e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int i = 0; i < width; i++) { 104597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com dst[i] = rgb_to_a8<APPLY_PREBLEND>(src[i], table8); 10465e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 10476f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com src = SkTAddByteOffset(src, srcRB); 10485e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com dst -= dstRB; 10495e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 10505e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 10515e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 105297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 105397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic void rgb_to_lcd16(const SkGdiRGB* SK_RESTRICT src, size_t srcRB, const SkGlyph& glyph, 105497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableR, const uint8_t* tableG, const uint8_t* tableB) { 10555e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const size_t dstRB = glyph.rowBytes(); 10565e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const int width = glyph.fWidth; 10575e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com uint16_t* SK_RESTRICT dst = (uint16_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 10585e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 10595e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int y = 0; y < glyph.fHeight; y++) { 10605e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int i = 0; i < width; i++) { 106197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com dst[i] = rgb_to_lcd16<APPLY_PREBLEND>(src[i], tableR, tableG, tableB); 10625e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 10636f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com src = SkTAddByteOffset(src, srcRB); 10645e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com dst = (uint16_t*)((char*)dst - dstRB); 10655e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 10665e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 10675e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 106897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 106997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic void rgb_to_lcd32(const SkGdiRGB* SK_RESTRICT src, size_t srcRB, const SkGlyph& glyph, 107097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableR, const uint8_t* tableG, const uint8_t* tableB) { 1071754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com const size_t dstRB = glyph.rowBytes(); 1072754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com const int width = glyph.fWidth; 107397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com uint32_t* SK_RESTRICT dst = (uint32_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 1074754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com 1075754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com for (int y = 0; y < glyph.fHeight; y++) { 1076754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com for (int i = 0; i < width; i++) { 107797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com dst[i] = rgb_to_lcd32<APPLY_PREBLEND>(src[i], tableR, tableG, tableB); 1078754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } 10796f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com src = SkTAddByteOffset(src, srcRB); 108097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com dst = (uint32_t*)((char*)dst - dstRB); 1081754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } 1082754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com} 1083754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com 10846f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.comstatic inline unsigned clamp255(unsigned x) { 10856f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com SkASSERT(x <= 256); 10866f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com return x - (x >> 8); 10876f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com} 10886f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com 1089a76de72a6036da0a6b051b14411b80941971f881bungeman@google.comvoid SkScalerContext_Windows::generateImage(const SkGlyph& glyph) { 109097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com SkAutoMutexAcquire ac(gFTMutex); 1091ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(fDDC); 1092ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 10936271117d826098c1399cf7442f8eea2d665cb78areed@google.com const bool isBW = SkMask::kBW_Format == fRec.fMaskFormat; 109482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com const bool isAA = !isLCD(fRec); 109582a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 109699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com size_t srcRB; 109797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const void* bits = fOffscreen.draw(glyph, isBW, &srcRB); 109839698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (NULL == bits) { 1099055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com LogFontTypeface::EnsureAccessible(this->getTypeface()); 110097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com bits = fOffscreen.draw(glyph, isBW, &srcRB); 110139698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (NULL == bits) { 110239698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com sk_bzero(glyph.fImage, glyph.computeImageSize()); 110339698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com return; 110439698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 110582a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com } 110682a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 110797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com if (!isBW) { 11081bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com const uint8_t* table; 11091bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com //The offscreen contains a GDI blit if isAA and kGenA8FromLCD_Flag is not set. 11101bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com //Otherwise the offscreen contains a ClearType blit. 11111bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com if (isAA && !(fRec.fFlags & SkScalerContext::kGenA8FromLCD_Flag)) { 11121bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com table = getInverseGammaTableGDI(); 11131bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com } else { 11141bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com table = getInverseGammaTableClearType(); 111597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } 111697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //Note that the following cannot really be integrated into the 111797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //pre-blend, since we may not be applying the pre-blend; when we aren't 111897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //applying the pre-blend it means that a filter wants linear anyway. 111997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //Other code may also be applying the pre-blend, so we'd need another 112097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //one with this and one without. 11216f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com SkGdiRGB* addr = (SkGdiRGB*)bits; 11226f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com for (int y = 0; y < glyph.fHeight; ++y) { 11236f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com for (int x = 0; x < glyph.fWidth; ++x) { 11246f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com int r = (addr[x] >> 16) & 0xFF; 11256f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com int g = (addr[x] >> 8) & 0xFF; 11266f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com int b = (addr[x] >> 0) & 0xFF; 11277430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com addr[x] = (table[r] << 16) | (table[g] << 8) | table[b]; 11286f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com } 11296f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com addr = SkTAddByteOffset(addr, srcRB); 11306f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com } 11316f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com } 11326f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com 113382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com int width = glyph.fWidth; 113482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com size_t dstRB = glyph.rowBytes(); 113582a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com if (isBW) { 113682a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com const uint8_t* src = (const uint8_t*)bits; 113782a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com uint8_t* dst = (uint8_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 113882a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com for (int y = 0; y < glyph.fHeight; y++) { 113982a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com memcpy(dst, src, dstRB); 114082a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com src += srcRB; 114182a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com dst -= dstRB; 1142ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 114382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com } else if (isAA) { 11446f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com // since the caller may require A8 for maskfilters, we can't check for BW 11456f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com // ... until we have the caller tell us that explicitly 11465e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const SkGdiRGB* src = (const SkGdiRGB*)bits; 1147a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com if (fPreBlend.isApplicable()) { 1148a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com rgb_to_a8<true>(src, srcRB, glyph, fPreBlend.fG); 114997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } else { 1150a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com rgb_to_a8<false>(src, srcRB, glyph, fPreBlend.fG); 115197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } 115282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com } else { // LCD16 11535e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const SkGdiRGB* src = (const SkGdiRGB*)bits; 11545e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com if (is_rgb_really_bw(src, width, glyph.fHeight, srcRB)) { 115597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com rgb_to_bw(src, srcRB, glyph); 11565e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com ((SkGlyph*)&glyph)->fMaskFormat = SkMask::kBW_Format; 11575e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } else { 1158754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com if (SkMask::kLCD16_Format == glyph.fMaskFormat) { 1159a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com if (fPreBlend.isApplicable()) { 1160a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com rgb_to_lcd16<true>(src, srcRB, glyph, 1161a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com fPreBlend.fR, fPreBlend.fG, fPreBlend.fB); 116297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } else { 1163a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com rgb_to_lcd16<false>(src, srcRB, glyph, 1164a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com fPreBlend.fR, fPreBlend.fG, fPreBlend.fB); 116597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } 1166754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } else { 1167754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com SkASSERT(SkMask::kLCD32_Format == glyph.fMaskFormat); 1168a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com if (fPreBlend.isApplicable()) { 1169a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com rgb_to_lcd32<true>(src, srcRB, glyph, 1170a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com fPreBlend.fR, fPreBlend.fG, fPreBlend.fB); 117197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } else { 1172a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com rgb_to_lcd32<false>(src, srcRB, glyph, 1173a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com fPreBlend.fR, fPreBlend.fG, fPreBlend.fB); 117497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } 1175754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } 1176ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1177ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1178ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1179ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1180ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comvoid SkScalerContext_Windows::generatePath(const SkGlyph& glyph, SkPath* path) { 1181ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1182d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkAutoMutexAcquire ac(gFTMutex); 1183ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1184ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(&glyph && path); 1185ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(fDDC); 1186ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1187ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com path->reset(); 1188ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1189ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com GLYPHMETRICS gm; 1190ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com uint32_t total_size = GetGlyphOutlineW(fDDC, glyph.fID, GGO_NATIVE | GGO_GLYPH_INDEX, &gm, BUFFERSIZE, glyphbuf, &fMat22); 119139698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (GDI_ERROR == total_size) { 1192055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com LogFontTypeface::EnsureAccessible(this->getTypeface()); 119339698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com total_size = GetGlyphOutlineW(fDDC, glyph.fID, GGO_NATIVE | GGO_GLYPH_INDEX, &gm, BUFFERSIZE, glyphbuf, &fMat22); 1194d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (GDI_ERROR == total_size) { 1195d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkASSERT(false); 1196d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com return; 1197d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 119839698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 1199ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1200d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const uint8_t* cur_glyph = glyphbuf; 1201d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const uint8_t* end_glyph = glyphbuf + total_size; 1202ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1203d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com while (cur_glyph < end_glyph) { 1204d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const TTPOLYGONHEADER* th = (TTPOLYGONHEADER*)cur_glyph; 1205ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1206d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const uint8_t* end_poly = cur_glyph + th->cb; 1207d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const uint8_t* cur_poly = cur_glyph + sizeof(TTPOLYGONHEADER); 1208ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1209d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com path->moveTo(SkFixedToScalar( SkFIXEDToFixed(th->pfxStart.x)), 1210d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(th->pfxStart.y))); 1211ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1212d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com while (cur_poly < end_poly) { 1213d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const TTPOLYCURVE* pc = (const TTPOLYCURVE*)cur_poly; 1214ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1215d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (pc->wType == TT_PRIM_LINE) { 1216d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com for (uint16_t i = 0; i < pc->cpfx; i++) { 1217d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com path->lineTo(SkFixedToScalar( SkFIXEDToFixed(pc->apfx[i].x)), 1218d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(pc->apfx[i].y))); 1219ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1220d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 1221ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1222d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (pc->wType == TT_PRIM_QSPLINE) { 1223d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com for (uint16_t u = 0; u < pc->cpfx - 1; u++) { // Walk through points in spline 1224d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com POINTFX pnt_b = pc->apfx[u]; // B is always the current point 1225d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com POINTFX pnt_c = pc->apfx[u+1]; 1226ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1227d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (u < pc->cpfx - 2) { // If not on last spline, compute C 1228d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com pnt_c.x = SkFixedToFIXED(SkFixedAve(SkFIXEDToFixed(pnt_b.x), 1229d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFIXEDToFixed(pnt_c.x))); 1230d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com pnt_c.y = SkFixedToFIXED(SkFixedAve(SkFIXEDToFixed(pnt_b.y), 1231d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFIXEDToFixed(pnt_c.y))); 1232ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1233d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com 1234d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com path->quadTo(SkFixedToScalar( SkFIXEDToFixed(pnt_b.x)), 1235d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(pnt_b.y)), 1236d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFixedToScalar( SkFIXEDToFixed(pnt_c.x)), 1237d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(pnt_c.y))); 1238ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1239ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1240d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // Advance past this TTPOLYCURVE. 1241d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com cur_poly += sizeof(WORD) * 2 + sizeof(POINTFX) * pc->cpfx; 1242ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1243d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com cur_glyph += th->cb; 1244d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com path->close(); 1245ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1246ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1247ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1248e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.comstatic void logfont_for_name(const char* familyName, LOGFONT& lf) { 1249e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com memset(&lf, 0, sizeof(LOGFONT)); 1250e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com#ifdef UNICODE 1251e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com // Get the buffer size needed first. 1252e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com size_t str_len = ::MultiByteToWideChar(CP_UTF8, 0, familyName, 1253e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com -1, NULL, 0); 1254e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com // Allocate a buffer (str_len already has terminating null 1255e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com // accounted for). 1256e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com wchar_t *wideFamilyName = new wchar_t[str_len]; 1257e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com // Now actually convert the string. 1258e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com ::MultiByteToWideChar(CP_UTF8, 0, familyName, -1, 1259e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com wideFamilyName, str_len); 1260e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com ::wcsncpy(lf.lfFaceName, wideFamilyName, LF_FACESIZE - 1); 1261e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com delete [] wideFamilyName; 1262e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com lf.lfFaceName[LF_FACESIZE-1] = L'\0'; 1263e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com#else 1264e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com ::strncpy(lf.lfFaceName, familyName, LF_FACESIZE - 1); 1265e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com lf.lfFaceName[LF_FACESIZE - 1] = '\0'; 1266e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com#endif 1267e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com} 1268e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com 12697103f182ce61280eacb35f1832df350b642a5381bungeman@google.comstatic void tchar_to_skstring(const TCHAR* t, SkString* s) { 1270e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com#ifdef UNICODE 12717103f182ce61280eacb35f1832df350b642a5381bungeman@google.com size_t sSize = WideCharToMultiByte(CP_UTF8, 0, t, -1, NULL, 0, NULL, NULL); 12727103f182ce61280eacb35f1832df350b642a5381bungeman@google.com s->resize(sSize); 12737103f182ce61280eacb35f1832df350b642a5381bungeman@google.com WideCharToMultiByte(CP_UTF8, 0, t, -1, s->writable_str(), sSize, NULL, NULL); 1274e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com#else 12757103f182ce61280eacb35f1832df350b642a5381bungeman@google.com s->set(t); 1276e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com#endif 1277e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com} 1278e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com 12795526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.comvoid LogFontTypeface::onGetFontDescriptor(SkFontDescriptor* desc, 12805526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.com bool* isLocalStream) const { 12817103f182ce61280eacb35f1832df350b642a5381bungeman@google.com // Get the actual name of the typeface. The logfont may not know this. 12825526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.com HFONT font = CreateFontIndirect(&fLogFont); 12837103f182ce61280eacb35f1832df350b642a5381bungeman@google.com 12847103f182ce61280eacb35f1832df350b642a5381bungeman@google.com HDC deviceContext = ::CreateCompatibleDC(NULL); 12857103f182ce61280eacb35f1832df350b642a5381bungeman@google.com HFONT savefont = (HFONT)SelectObject(deviceContext, font); 12867103f182ce61280eacb35f1832df350b642a5381bungeman@google.com 12877103f182ce61280eacb35f1832df350b642a5381bungeman@google.com int fontNameLen; //length of fontName in TCHARS. 12887103f182ce61280eacb35f1832df350b642a5381bungeman@google.com if (0 == (fontNameLen = GetTextFace(deviceContext, 0, NULL))) { 12895526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.com call_ensure_accessible(fLogFont); 12907103f182ce61280eacb35f1832df350b642a5381bungeman@google.com if (0 == (fontNameLen = GetTextFace(deviceContext, 0, NULL))) { 12917103f182ce61280eacb35f1832df350b642a5381bungeman@google.com fontNameLen = 0; 12927103f182ce61280eacb35f1832df350b642a5381bungeman@google.com } 12937103f182ce61280eacb35f1832df350b642a5381bungeman@google.com } 12947103f182ce61280eacb35f1832df350b642a5381bungeman@google.com 12957103f182ce61280eacb35f1832df350b642a5381bungeman@google.com SkAutoSTArray<LF_FULLFACESIZE, TCHAR> fontName(fontNameLen+1); 12967103f182ce61280eacb35f1832df350b642a5381bungeman@google.com if (0 == GetTextFace(deviceContext, fontNameLen, fontName.get())) { 12975526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.com call_ensure_accessible(fLogFont); 12987103f182ce61280eacb35f1832df350b642a5381bungeman@google.com if (0 == GetTextFace(deviceContext, fontNameLen, fontName.get())) { 12997103f182ce61280eacb35f1832df350b642a5381bungeman@google.com fontName[0] = 0; 13007103f182ce61280eacb35f1832df350b642a5381bungeman@google.com } 13017103f182ce61280eacb35f1832df350b642a5381bungeman@google.com } 13027103f182ce61280eacb35f1832df350b642a5381bungeman@google.com 13037103f182ce61280eacb35f1832df350b642a5381bungeman@google.com if (deviceContext) { 13047103f182ce61280eacb35f1832df350b642a5381bungeman@google.com ::SelectObject(deviceContext, savefont); 13057103f182ce61280eacb35f1832df350b642a5381bungeman@google.com ::DeleteDC(deviceContext); 13067103f182ce61280eacb35f1832df350b642a5381bungeman@google.com } 13077103f182ce61280eacb35f1832df350b642a5381bungeman@google.com if (font) { 13087103f182ce61280eacb35f1832df350b642a5381bungeman@google.com ::DeleteObject(font); 13097103f182ce61280eacb35f1832df350b642a5381bungeman@google.com } 13107103f182ce61280eacb35f1832df350b642a5381bungeman@google.com 1311e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com SkString familyName; 13127103f182ce61280eacb35f1832df350b642a5381bungeman@google.com tchar_to_skstring(fontName.get(), &familyName); 1313e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com 13145526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.com desc->setFamilyName(familyName.c_str()); 13155526ede94a2fc58bcf6b578b12a29f6addad776dreed@google.com *isLocalStream = this->fSerializeAsStream; 1316ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1317ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1318ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic bool getWidthAdvance(HDC hdc, int gId, int16_t* advance) { 1319ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Initialize the MAT2 structure to the identify transformation matrix. 1320ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com static const MAT2 mat2 = {SkScalarToFIXED(1), SkScalarToFIXED(0), 1321ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkScalarToFIXED(0), SkScalarToFIXED(1)}; 1322ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int flags = GGO_METRICS | GGO_GLYPH_INDEX; 1323ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com GLYPHMETRICS gm; 1324ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (GDI_ERROR == GetGlyphOutline(hdc, gId, flags, &gm, 0, NULL, &mat2)) { 1325ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return false; 1326ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1327ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(advance); 1328ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com *advance = gm.gmCellIncX; 1329ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return true; 1330ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1331ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 13322689f615e364dc48ad73826564f5b13d2329179dreed@google.comSkAdvancedTypefaceMetrics* LogFontTypeface::onGetAdvancedTypefaceMetrics( 133337ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org SkAdvancedTypefaceMetrics::PerGlyphInfo perGlyphInfo, 133437ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org const uint32_t* glyphIDs, 13352689f615e364dc48ad73826564f5b13d2329179dreed@google.com uint32_t glyphIDsCount) const { 13362689f615e364dc48ad73826564f5b13d2329179dreed@google.com LOGFONT lf = fLogFont; 1337ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkAdvancedTypefaceMetrics* info = NULL; 1338ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1339ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HDC hdc = CreateCompatibleDC(NULL); 1340ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT font = CreateFontIndirect(&lf); 1341ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT savefont = (HFONT)SelectObject(hdc, font); 1342ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT designFont = NULL; 1343ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 134405b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com const char stem_chars[] = {'i', 'I', '!', '1'}; 134505b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com int16_t min_width; 134605b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com unsigned glyphCount; 134705b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com 1348ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // To request design units, create a logical font whose height is specified 1349ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // as unitsPerEm. 1350ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com OUTLINETEXTMETRIC otm; 135139698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com unsigned int otmRet = GetOutlineTextMetrics(hdc, sizeof(otm), &otm); 135239698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (0 == otmRet) { 1353055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com call_ensure_accessible(lf); 135439698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com otmRet = GetOutlineTextMetrics(hdc, sizeof(otm), &otm); 135539698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 135639698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (!otmRet || !GetTextFace(hdc, LF_FACESIZE, lf.lfFaceName)) { 1357ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com goto Error; 1358ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1359ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com lf.lfHeight = -SkToS32(otm.otmEMSquare); 1360ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com designFont = CreateFontIndirect(&lf); 1361ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SelectObject(hdc, designFont); 1362ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (!GetOutlineTextMetrics(hdc, sizeof(otm), &otm)) { 1363ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com goto Error; 1364ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1365a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyphCount = calculateOutlineGlyphCount(hdc); 1366ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1367ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info = new SkAdvancedTypefaceMetrics; 1368ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fEmSize = otm.otmEMSquare; 1369ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fMultiMaster = false; 1370ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fLastGlyphID = SkToU16(glyphCount - 1); 1371ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle = 0; 13727103f182ce61280eacb35f1832df350b642a5381bungeman@google.com tchar_to_skstring(lf.lfFaceName, &info->fFontName); 1373ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 13746744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org if (perGlyphInfo & SkAdvancedTypefaceMetrics::kToUnicode_PerGlyphInfo) { 13756744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org populate_glyph_to_unicode(hdc, glyphCount, &(info->fGlyphToUnicode)); 13766744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 13776744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 1378d41e70de196e78e21e1001d23a7259785cbd0835vandebo@chromium.org if (glyphCount > 0 && 1379d41e70de196e78e21e1001d23a7259785cbd0835vandebo@chromium.org (otm.otmTextMetrics.tmPitchAndFamily & TMPF_TRUETYPE)) { 1380ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fType = SkAdvancedTypefaceMetrics::kTrueType_Font; 1381ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 1382ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fType = SkAdvancedTypefaceMetrics::kOther_Font; 1383ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fItalicAngle = 0; 1384ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fAscent = 0; 1385ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fDescent = 0; 1386ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStemV = 0; 1387ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fCapHeight = 0; 1388ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fBBox = SkIRect::MakeEmpty(); 1389ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return info; 1390ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 13915aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org 1392ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // If this bit is clear the font is a fixed pitch font. 1393ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (!(otm.otmTextMetrics.tmPitchAndFamily & TMPF_FIXED_PITCH)) { 1394ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kFixedPitch_Style; 1395ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1396ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (otm.otmTextMetrics.tmItalic) { 1397ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kItalic_Style; 1398ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1399ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (otm.otmTextMetrics.tmPitchAndFamily & FF_ROMAN) { 1400ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kSerif_Style; 1401ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else if (otm.otmTextMetrics.tmPitchAndFamily & FF_SCRIPT) { 1402ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kScript_Style; 1403ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1404ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1405ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // The main italic angle of the font, in tenths of a degree counterclockwise 1406ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // from vertical. 1407ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fItalicAngle = otm.otmItalicAngle / 10; 1408ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fAscent = SkToS16(otm.otmTextMetrics.tmAscent); 1409ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fDescent = SkToS16(-otm.otmTextMetrics.tmDescent); 1410ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // TODO(ctguil): Use alternate cap height calculation. 1411ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // MSDN says otmsCapEmHeight is not support but it is returning a value on 1412ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // my Win7 box. 1413ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fCapHeight = otm.otmsCapEmHeight; 1414ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fBBox = 1415ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkIRect::MakeLTRB(otm.otmrcFontBox.left, otm.otmrcFontBox.top, 1416ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com otm.otmrcFontBox.right, otm.otmrcFontBox.bottom); 1417ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1418ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Figure out a good guess for StemV - Min width of i, I, !, 1. 1419ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // This probably isn't very good with an italic font. 142005b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com min_width = SHRT_MAX; 1421ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStemV = 0; 1422ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com for (size_t i = 0; i < SK_ARRAY_COUNT(stem_chars); i++) { 1423ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ABC abcWidths; 1424ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (GetCharABCWidths(hdc, stem_chars[i], stem_chars[i], &abcWidths)) { 1425ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int16_t width = abcWidths.abcB; 1426ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (width > 0 && width < min_width) { 1427ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com min_width = width; 1428ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStemV = min_width; 1429ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1430ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1431ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1432ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1433ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // If bit 1 is set, the font may not be embedded in a document. 1434ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // If bit 1 is clear, the font can be embedded. 1435ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // If bit 2 is set, the embedding is read-only. 1436ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (otm.otmfsType & 0x1) { 1437ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fType = SkAdvancedTypefaceMetrics::kNotEmbeddable_Font; 14380e6dc0a320985ffd31f77eed8a41e62132b9ba95ctguil@chromium.org } else if (perGlyphInfo & 14390e6dc0a320985ffd31f77eed8a41e62132b9ba95ctguil@chromium.org SkAdvancedTypefaceMetrics::kHAdvance_PerGlyphInfo) { 14405aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org if (info->fStyle & SkAdvancedTypefaceMetrics::kFixedPitch_Style) { 14415aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org appendRange(&info->fGlyphWidths, 0); 14425aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org info->fGlyphWidths->fAdvance.append(1, &min_width); 14435aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org finishRange(info->fGlyphWidths.get(), 0, 14445aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org SkAdvancedTypefaceMetrics::WidthRange::kDefault); 14455aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org } else { 14465aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org info->fGlyphWidths.reset( 144737ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org getAdvanceData(hdc, 144837ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org glyphCount, 144937ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org glyphIDs, 145037ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org glyphIDsCount, 145137ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org &getWidthAdvance)); 14525aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org } 1453ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1454ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1455ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comError: 1456ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SelectObject(hdc, savefont); 1457ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteObject(designFont); 1458ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteObject(font); 1459ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteDC(hdc); 1460ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1461ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return info; 1462ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1463ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1464a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com//Dummy representation of a Base64 encoded GUID from create_unique_font_name. 1465a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#define BASE64_GUID_ID "XXXXXXXXXXXXXXXXXXXXXXXX" 1466a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com//Length of GUID representation from create_id, including NULL terminator. 1467a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#define BASE64_GUID_ID_LEN SK_ARRAY_COUNT(BASE64_GUID_ID) 1468a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1469a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comSK_COMPILE_ASSERT(BASE64_GUID_ID_LEN < LF_FACESIZE, GUID_longer_than_facesize); 1470a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1471a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 1472a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com NameID 6 Postscript names cannot have the character '/'. 1473a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com It would be easier to hex encode the GUID, but that is 32 bytes, 1474a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com and many systems have issues with names longer than 28 bytes. 1475a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com The following need not be any standard base64 encoding. 1476a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com The encoded value is never decoded. 1477a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com*/ 1478d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.comstatic const char postscript_safe_base64_encode[] = 1479a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com "ABCDEFGHIJKLMNOPQRSTUVWXYZ" 1480a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com "abcdefghijklmnopqrstuvwxyz" 1481a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com "0123456789-_="; 1482a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1483a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 1484a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com Formats a GUID into Base64 and places it into buffer. 1485a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com buffer should have space for at least BASE64_GUID_ID_LEN characters. 1486a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com The string will always be null terminated. 1487a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com XXXXXXXXXXXXXXXXXXXXXXXX0 1488a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 1489a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comstatic void format_guid_b64(const GUID& guid, char* buffer, size_t bufferSize) { 1490a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com SkASSERT(bufferSize >= BASE64_GUID_ID_LEN); 1491a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com size_t written = SkBase64::Encode(&guid, sizeof(guid), buffer, postscript_safe_base64_encode); 1492a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com SkASSERT(written < LF_FACESIZE); 1493a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com buffer[written] = '\0'; 1494a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com} 1495a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1496a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 1497a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com Creates a Base64 encoded GUID and places it into buffer. 1498a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com buffer should have space for at least BASE64_GUID_ID_LEN characters. 1499a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com The string will always be null terminated. 1500a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com XXXXXXXXXXXXXXXXXXXXXXXX0 1501a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 1502a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comstatic HRESULT create_unique_font_name(char* buffer, size_t bufferSize) { 1503a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com GUID guid = {}; 1504a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com if (FAILED(CoCreateGuid(&guid))) { 1505a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return E_UNEXPECTED; 1506a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1507a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com format_guid_b64(guid, buffer, bufferSize); 1508a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1509a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return S_OK; 1510a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com} 1511a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1512a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 1513a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com Introduces a font to GDI. On failure will return NULL. The returned handle 1514a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com should eventually be passed to RemoveFontMemResourceEx. 1515a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com*/ 1516a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comstatic HANDLE activate_font(SkData* fontData) { 1517a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com DWORD numFonts = 0; 1518a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com //AddFontMemResourceEx just copies the data, but does not specify const. 1519a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com HANDLE fontHandle = AddFontMemResourceEx(const_cast<void*>(fontData->data()), 1520a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com fontData->size(), 1521a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 0, 1522a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com &numFonts); 1523a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1524a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com if (fontHandle != NULL && numFonts < 1) { 1525a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com RemoveFontMemResourceEx(fontHandle); 1526a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return NULL; 1527a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1528a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1529a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return fontHandle; 1530a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com} 1531a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1532ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comSkTypeface* SkFontHost::CreateTypefaceFromStream(SkStream* stream) { 1533a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Create a unique and unpredictable font name. 1534a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Avoids collisions and access from CSS. 1535a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com char familyName[BASE64_GUID_ID_LEN]; 1536a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com const int familyNameSize = SK_ARRAY_COUNT(familyName); 1537a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com if (FAILED(create_unique_font_name(familyName, familyNameSize))) { 1538a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return NULL; 1539a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1540d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com 1541a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Change the name of the font. 1542e9bbee397ce96aa6642a42823feb1d7c4a8ffd8bbungeman@google.com SkAutoTUnref<SkData> rewrittenFontData(SkOTUtils::RenameFont(stream, familyName, familyNameSize-1)); 1543e9bbee397ce96aa6642a42823feb1d7c4a8ffd8bbungeman@google.com if (NULL == rewrittenFontData.get()) { 1544a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return NULL; 1545a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1546ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1547a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Register the font with GDI. 1548e9bbee397ce96aa6642a42823feb1d7c4a8ffd8bbungeman@google.com HANDLE fontReference = activate_font(rewrittenFontData.get()); 1549a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com if (NULL == fontReference) { 1550a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return NULL; 1551a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1552a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1553a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Create the typeface. 1554a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com LOGFONT lf; 1555a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com logfont_for_name(familyName, lf); 1556a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1557a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return SkCreateFontMemResourceTypefaceFromLOGFONT(lf, fontReference); 1558ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1559ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 15600042b9c2a2e6fe954cdfbcd5a5b7449cdf41a4c3reed@google.comSkStream* LogFontTypeface::onOpenStream(int* ttcIndex) const { 15610042b9c2a2e6fe954cdfbcd5a5b7449cdf41a4c3reed@google.com *ttcIndex = 0; 15620042b9c2a2e6fe954cdfbcd5a5b7449cdf41a4c3reed@google.com 1563f4c2622a1a3489988f2d85a81fdc132b17a92bddctguil@chromium.org const DWORD kTTCTag = 1564f4c2622a1a3489988f2d85a81fdc132b17a92bddctguil@chromium.org SkEndian_SwapBE32(SkSetFourByteTag('t', 't', 'c', 'f')); 15650042b9c2a2e6fe954cdfbcd5a5b7449cdf41a4c3reed@google.com LOGFONT lf = fLogFont; 1566ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1567ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HDC hdc = ::CreateCompatibleDC(NULL); 156859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com HFONT font = CreateFontIndirect(&lf); 1569ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT savefont = (HFONT)SelectObject(hdc, font); 1570ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1571d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org SkMemoryStream* stream = NULL; 1572d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org DWORD tables[2] = {kTTCTag, 0}; 1573d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org for (int i = 0; i < SK_ARRAY_COUNT(tables); i++) { 1574d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org size_t bufferSize = GetFontData(hdc, tables[i], 0, NULL, 0); 157539698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (bufferSize == GDI_ERROR) { 1576055180cb9c47c87e5ee8c9fa6d3f6a6079ad6f35reed@google.com call_ensure_accessible(lf); 157739698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com bufferSize = GetFontData(hdc, tables[i], 0, NULL, 0); 157839698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 1579d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org if (bufferSize != GDI_ERROR) { 1580d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org stream = new SkMemoryStream(bufferSize); 1581d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org if (GetFontData(hdc, tables[i], 0, (void*)stream->getMemoryBase(), 1582d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org bufferSize)) { 1583d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org break; 1584d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org } else { 1585d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org delete stream; 1586d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org stream = NULL; 1587d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org } 1588d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org } 1589ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1590ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1591ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SelectObject(hdc, savefont); 1592ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteObject(font); 1593ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteDC(hdc); 1594ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1595ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return stream; 1596ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1597ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 15980da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.comSkScalerContext* LogFontTypeface::onCreateScalerContext(const SkDescriptor* desc) const { 15990da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.com return SkNEW_ARGS(SkScalerContext_Windows, (const_cast<LogFontTypeface*>(this), desc)); 1600ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1601ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1602ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com/** Return the closest matching typeface given either an existing family 1603ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com (specified by a typeface in that family) or by a familyName, and a 1604ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com requested style. 160590d812b77ab025d5fd01dab904287f5c5bf56228bungeman@google.com 1) If familyFace is null, use familyName. 160690d812b77ab025d5fd01dab904287f5c5bf56228bungeman@google.com 2) If familyName is null, use familyFace. 1607ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 3) If both are null, return the default font that best matches style 1608ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com This MUST not return NULL. 1609ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com */ 1610ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1611ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comSkTypeface* SkFontHost::CreateTypeface(const SkTypeface* familyFace, 1612ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com const char familyName[], 1613ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkTypeface::Style style) { 161459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LOGFONT lf; 1615ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (NULL == familyFace && NULL == familyName) { 161659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf = get_default_font(); 161759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } else if (familyFace) { 161859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LogFontTypeface* face = (LogFontTypeface*)familyFace; 161959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf = face->fLogFont; 1620ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 1621a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com logfont_for_name(familyName, lf); 1622ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 162359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com setStyle(&lf, style); 162459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com return SkCreateTypefaceFromLOGFONT(lf); 1625ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1626ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1627ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comSkTypeface* SkFontHost::CreateTypefaceFromFile(const char path[]) { 1628f381162e5616daacdbcc06d693aca5111aeeebe8mike@reedtribe.org SkAutoTUnref<SkStream> stream(SkStream::NewFromFile(path)); 1629f381162e5616daacdbcc06d693aca5111aeeebe8mike@reedtribe.org return stream.get() ? CreateTypefaceFromStream(stream) : NULL; 1630ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1631ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 16320da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.comvoid LogFontTypeface::onFilterRec(SkScalerContextRec* rec) const { 1633e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com unsigned flagsWeDontSupport = SkScalerContext::kDevKernText_Flag | 1634e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kAutohinting_Flag | 1635e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kEmbeddedBitmapText_Flag | 1636e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kEmbolden_Flag | 1637c84547a8d3cb04f0547db282b34e26abfbe64ec3bungeman@google.com SkScalerContext::kSubpixelPositioning_Flag | 1638e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kLCD_BGROrder_Flag | 1639e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kLCD_Vertical_Flag; 1640e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com rec->fFlags &= ~flagsWeDontSupport; 1641e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com 1642e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkPaint::Hinting h = rec->getHinting(); 1643da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com 1644da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com // I think we can support no-hinting, if we get hires outlines and just 1645da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com // use skia to rasterize into a gray-scale mask... 1646da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com#if 0 1647e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com switch (h) { 1648e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kNo_Hinting: 1649e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kSlight_Hinting: 1650e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com h = SkPaint::kNo_Hinting; 1651e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com break; 1652e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kNormal_Hinting: 1653e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kFull_Hinting: 1654e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com h = SkPaint::kNormal_Hinting; 1655e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com break; 1656e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com default: 16570c00f21fee3f5cfa3aa7e5d46ff94cb8cf340451tomhudson@google.com SkDEBUGFAIL("unknown hinting"); 1658e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com } 1659da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com#else 1660da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com h = SkPaint::kNormal_Hinting; 1661da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com#endif 1662e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com rec->setHinting(h); 1663da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com 16649181aa84aa288d2bc3ab079b6b40a79ac87d8807reed@google.com// turn this off since GDI might turn A8 into BW! Need a bigger fix. 16659181aa84aa288d2bc3ab079b6b40a79ac87d8807reed@google.com#if 0 1666da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com // Disable LCD when rotated, since GDI's output is ugly 1667da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com if (isLCD(*rec) && !isAxisAligned(*rec)) { 1668da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com rec->fMaskFormat = SkMask::kA8_Format; 1669da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com } 16709181aa84aa288d2bc3ab079b6b40a79ac87d8807reed@google.com#endif 1671754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com 16720da48618a758ef46c2174bdc1eaeb6dd8a693a2ereed@google.com if (!fCanBeLCD && isLCD(*rec)) { 1673cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com rec->fMaskFormat = SkMask::kA8_Format; 1674cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com rec->fFlags &= ~SkScalerContext::kGenA8FromLCD_Flag; 1675754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } 1676754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com} 1677070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.com 1678070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.com/////////////////////////////////////////////////////////////////////////////// 1679070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.com 1680070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.com#include "SkFontMgr.h" 1681070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.com 1682070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.comSkFontMgr* SkFontMgr::Factory() { 1683070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.com // todo 1684070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.com return NULL; 1685070da5edcb1c6e9b9507f06a5e2c270e1c1fd796reed@google.com} 1686