SkFontHost_win.cpp revision d1c7f71ee371738a8c7896a4f06d28b32e3c713e
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 326f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com// always packed xxRRGGBB 336f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.comtypedef uint32_t SkGdiRGB; 346f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com 356f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.comtemplate <typename T> T* SkTAddByteOffset(T* ptr, size_t byteOffset) { 366f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com return (T*)((char*)ptr + byteOffset); 376f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com} 386f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com 39a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com// define this in your Makefile or .gyp to enforce AA requests 40a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com// which GDI ignores at small sizes. This flag guarantees AA 41a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com// for rotated text, regardless of GDI's notions. 42a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com//#define SK_ENFORCE_ROTATED_TEXT_AA_ON_WINDOWS 43a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 44ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com// client3d has to undefine this for now 45ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#define CAN_USE_LOGFONT_NAME 46ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 4782a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.comstatic bool isLCD(const SkScalerContext::Rec& rec) { 4882a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com return SkMask::kLCD16_Format == rec.fMaskFormat || 4982a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com SkMask::kLCD32_Format == rec.fMaskFormat; 5082a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com} 5182a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 52a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.comstatic bool bothZero(SkScalar a, SkScalar b) { 53a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com return 0 == a && 0 == b; 54a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com} 55a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 56a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com// returns false if there is any non-90-rotation or skew 57a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.comstatic bool isAxisAligned(const SkScalerContext::Rec& rec) { 58a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com return 0 == rec.fPreSkewX && 59a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com (bothZero(rec.fPost2x2[0][1], rec.fPost2x2[1][0]) || 60a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com bothZero(rec.fPost2x2[0][0], rec.fPost2x2[1][1])); 61a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com} 62a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 63a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.comstatic bool needToRenderWithSkia(const SkScalerContext::Rec& rec) { 64a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com#ifdef SK_ENFORCE_ROTATED_TEXT_AA_ON_WINDOWS 65a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // What we really want to catch is when GDI will ignore the AA request and give 66a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // us BW instead. Smallish rotated text is one heuristic, so this code is just 67a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // an approximation. We shouldn't need to do this for larger sizes, but at those 68a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // sizes, the quality difference gets less and less between our general 69a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // scanconverter and GDI's. 70a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com if (SkMask::kA8_Format == rec.fMaskFormat && !isAxisAligned(rec)) { 71a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com return true; 72a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com } 73a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com#endif 74a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // false means allow GDI to generate the bits 75a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com return false; 76a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com} 77a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 78ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comusing namespace skia_advanced_typeface_metrics_utils; 79ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 80ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic const uint16_t BUFFERSIZE = (16384 - 32); 81ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic uint8_t glyphbuf[BUFFERSIZE]; 82ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 83ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com/** 845aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org * Since LOGFONT wants its textsize as an int, and we support fractional sizes, 85ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com * and since we have a cache of LOGFONTs for our tyepfaces, we always set the 86ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com * lfHeight to a canonical size, and then we use the 2x2 matrix to achieve the 87ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com * actual requested size. 88ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com */ 89ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic const int gCanonicalTextSize = 64; 90ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 91ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic void make_canonical(LOGFONT* lf) { 925aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org lf->lfHeight = -gCanonicalTextSize; 9359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf->lfQuality = CLEARTYPE_QUALITY;//PROOF_QUALITY; 9459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf->lfCharSet = DEFAULT_CHARSET; 9582a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com// lf->lfClipPrecision = 64; 9659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com} 9759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 9890d812b77ab025d5fd01dab904287f5c5bf56228bungeman@google.comstatic SkTypeface::Style get_style(const LOGFONT& lf) { 9959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com unsigned style = 0; 10059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com if (lf.lfWeight >= FW_BOLD) { 10159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com style |= SkTypeface::kBold; 10259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } 10359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com if (lf.lfItalic) { 10459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com style |= SkTypeface::kItalic; 10559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } 10690d812b77ab025d5fd01dab904287f5c5bf56228bungeman@google.com return static_cast<SkTypeface::Style>(style); 10759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com} 10859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 10959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.comstatic void setStyle(LOGFONT* lf, SkTypeface::Style style) { 11059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf->lfWeight = (style & SkTypeface::kBold) != 0 ? FW_BOLD : FW_NORMAL ; 11159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf->lfItalic = ((style & SkTypeface::kItalic) != 0); 112ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 113ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 114ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic inline FIXED SkFixedToFIXED(SkFixed x) { 115ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return *(FIXED*)(&x); 116ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 117a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.comstatic inline SkFixed SkFIXEDToFixed(FIXED x) { 118a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com return *(SkFixed*)(&x); 119a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com} 120ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 121ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic inline FIXED SkScalarToFIXED(SkScalar x) { 122ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkFixedToFIXED(SkScalarToFixed(x)); 123ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 124ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 125a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.comstatic unsigned calculateOutlineGlyphCount(HDC hdc) { 126ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // The 'maxp' table stores the number of glyphs at offset 4, in 2 bytes. 127f4c2622a1a3489988f2d85a81fdc132b17a92bddctguil@chromium.org const DWORD maxpTag = 128f4c2622a1a3489988f2d85a81fdc132b17a92bddctguil@chromium.org SkEndian_SwapBE32(SkSetFourByteTag('m', 'a', 'x', 'p')); 129ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com uint16_t glyphs; 130ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (GetFontData(hdc, maxpTag, 4, &glyphs, sizeof(glyphs)) != GDI_ERROR) { 131ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkEndian_SwapBE16(glyphs); 132ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1335aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org 134ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Binary search for glyph count. 135ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com static const MAT2 mat2 = {{0, 1}, {0, 0}, {0, 0}, {0, 1}}; 136ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int32_t max = SK_MaxU16 + 1; 137ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int32_t min = 0; 138ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com GLYPHMETRICS gm; 139ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com while (min < max) { 140ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int32_t mid = min + ((max - min) / 2); 141ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (GetGlyphOutlineW(hdc, mid, GGO_METRICS | GGO_GLYPH_INDEX, &gm, 0, 142ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com NULL, &mat2) == GDI_ERROR) { 143ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com max = mid; 144ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 145ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com min = mid + 1; 146ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 147ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 148ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(min == max); 149ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return min; 150ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 151ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 152ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comclass LogFontTypeface : public SkTypeface { 153ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.compublic: 154cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com LogFontTypeface(SkTypeface::Style style, SkFontID fontID, const LOGFONT& lf, bool serializeAsStream = false) : 155cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com SkTypeface(style, fontID, false), fLogFont(lf), fSerializeAsStream(serializeAsStream) { 156cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com 157cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com // If the font has cubic outlines, it will not be rendered with ClearType. 158cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com HFONT font = CreateFontIndirect(&lf); 159cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com 160cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com HDC deviceContext = ::CreateCompatibleDC(NULL); 161cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com HFONT savefont = (HFONT)SelectObject(deviceContext, font); 162cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com 163cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com TEXTMETRIC textMetric; 164cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com if (0 == GetTextMetrics(deviceContext, &textMetric)) { 165cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com SkFontHost::EnsureTypefaceAccessible(*this); 166cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com if (0 == GetTextMetrics(deviceContext, &textMetric)) { 167cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com textMetric.tmPitchAndFamily = TMPF_TRUETYPE; 168cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com } 169cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com } 170cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com if (deviceContext) { 171cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com ::SelectObject(deviceContext, savefont); 172cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com ::DeleteDC(deviceContext); 173cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com } 174cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com if (font) { 175cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com ::DeleteObject(font); 176cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com } 177cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com 178cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com // Used a logfont on a memory context, should never get a device font. 179cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com // Therefore all TMPF_DEVICE will be PostScript (cubic) fonts. 180cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com fCanBeLCD = !((textMetric.tmPitchAndFamily & TMPF_VECTOR) && 181cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com (textMetric.tmPitchAndFamily & TMPF_DEVICE)); 182cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com } 183ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 18459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LOGFONT fLogFont; 185e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com bool fSerializeAsStream; 186cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com bool fCanBeLCD; 187ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 18859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com static LogFontTypeface* Create(const LOGFONT& lf) { 18990d812b77ab025d5fd01dab904287f5c5bf56228bungeman@google.com SkTypeface::Style style = get_style(lf); 19059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com SkFontID fontID = SkTypefaceCache::NewFontID(); 19159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com return new LogFontTypeface(style, fontID, lf); 192ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 193ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com}; 194ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 195a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comclass FontMemResourceTypeface : public LogFontTypeface { 196a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.compublic: 197a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com /** 198a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com * Takes ownership of fontMemResource. 199a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 200a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com FontMemResourceTypeface(SkTypeface::Style style, SkFontID fontID, const LOGFONT& lf, HANDLE fontMemResource) : 201cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com LogFontTypeface(style, fontID, lf, true), fFontMemResource(fontMemResource) { 202e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com } 203a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 204a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com HANDLE fFontMemResource; 205a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 206a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com /** 207a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com * The created FontMemResourceTypeface takes ownership of fontMemResource. 208a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 209a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com static FontMemResourceTypeface* Create(const LOGFONT& lf, HANDLE fontMemResource) { 210a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com SkTypeface::Style style = get_style(lf); 211a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com SkFontID fontID = SkTypefaceCache::NewFontID(); 212a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return new FontMemResourceTypeface(style, fontID, lf, fontMemResource); 213a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 214a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 215a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comprotected: 216a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com virtual void weak_dispose() const SK_OVERRIDE { 217a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com RemoveFontMemResourceEx(fFontMemResource); 218a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com //SkTypefaceCache::Remove(this); 219a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com INHERITED::weak_dispose(); 220a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 221a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 222a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comprivate: 223a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com typedef LogFontTypeface INHERITED; 224a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com}; 225a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 226ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic const LOGFONT& get_default_font() { 227ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com static LOGFONT gDefaultFont; 228ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return gDefaultFont; 229ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 230ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 23159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.comstatic bool FindByLogFont(SkTypeface* face, SkTypeface::Style requestedStyle, void* ctx) { 232a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com LogFontTypeface* lface = static_cast<LogFontTypeface*>(face); 23359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com const LOGFONT* lf = reinterpret_cast<const LOGFONT*>(ctx); 234ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 235a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return lface && 236a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com get_style(lface->fLogFont) == requestedStyle && 23759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com !memcmp(&lface->fLogFont, lf, sizeof(LOGFONT)); 23859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com} 23959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 24059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com/** 24159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com * This guy is public. It first searches the cache, and if a match is not found, 24259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com * it creates a new face. 24359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com */ 24459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.comSkTypeface* SkCreateTypefaceFromLOGFONT(const LOGFONT& origLF) { 24559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LOGFONT lf = origLF; 24659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com make_canonical(&lf); 247ee51d1a6e43615ae640410013c36d2d9873e6aa5bungeman@google.com SkTypeface* face = SkTypefaceCache::FindByProcAndRef(FindByLogFont, &lf); 248ee51d1a6e43615ae640410013c36d2d9873e6aa5bungeman@google.com if (NULL == face) { 24959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com face = LogFontTypeface::Create(lf); 25090d812b77ab025d5fd01dab904287f5c5bf56228bungeman@google.com SkTypefaceCache::Add(face, get_style(lf)); 25159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } 25259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com return face; 253ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 254ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 255db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com/** 256a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com * The created SkTypeface takes ownership of fontMemResource. 257a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 258a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comSkTypeface* SkCreateFontMemResourceTypefaceFromLOGFONT(const LOGFONT& origLF, HANDLE fontMemResource) { 259a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com LOGFONT lf = origLF; 260a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com make_canonical(&lf); 261a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com FontMemResourceTypeface* face = FontMemResourceTypeface::Create(lf, fontMemResource); 262a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com SkTypefaceCache::Add(face, get_style(lf), false); 263a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return face; 264a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com} 265a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 266a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 267db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com * This guy is public 268db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com */ 269db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.comvoid SkLOGFONTFromTypeface(const SkTypeface* face, LOGFONT* lf) { 270db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com if (NULL == face) { 271db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com *lf = get_default_font(); 272db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com } else { 273a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com *lf = static_cast<const LogFontTypeface*>(face)->fLogFont; 274db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com } 275db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com} 276db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com 2777d26c590f6bc431a5ecf5c25619b64d058613a4dreed@google.comSkFontID SkFontHost::NextLogicalFont(SkFontID currFontID, SkFontID origFontID) { 278ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Zero means that we don't have any fallback fonts for this fontID. 279ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // This function is implemented on Android, but doesn't have much 280ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // meaning here. 281ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return 0; 282ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 283ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 28439698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.comstatic void ensure_typeface_accessible(SkFontID fontID) { 285a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com LogFontTypeface* face = static_cast<LogFontTypeface*>(SkTypefaceCache::FindByID(fontID)); 286ee51d1a6e43615ae640410013c36d2d9873e6aa5bungeman@google.com if (face) { 287ee51d1a6e43615ae640410013c36d2d9873e6aa5bungeman@google.com SkFontHost::EnsureTypefaceAccessible(*face); 288ee51d1a6e43615ae640410013c36d2d9873e6aa5bungeman@google.com } 28939698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com} 29039698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com 29159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.comstatic void GetLogFontByID(SkFontID fontID, LOGFONT* lf) { 292a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com LogFontTypeface* face = static_cast<LogFontTypeface*>(SkTypefaceCache::FindByID(fontID)); 29359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com if (face) { 29459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com *lf = face->fLogFont; 29559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } else { 29659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com sk_bzero(lf, sizeof(LOGFONT)); 29759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } 29859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com} 29959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 3006744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// Construct Glyph to Unicode table. 3016744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// Unicode code points that require conjugate pairs in utf16 are not 3026744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// supported. 3036744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// TODO(arthurhsu): Add support for conjugate pairs. It looks like that may 3046744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// require parsing the TTF cmap table (platform 4, encoding 12) directly instead 3056744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// of calling GetFontUnicodeRange(). 3066744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.orgstatic void populate_glyph_to_unicode(HDC fontHdc, const unsigned glyphCount, 3076744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkTDArray<SkUnichar>* glyphToUnicode) { 3086744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org DWORD glyphSetBufferSize = GetFontUnicodeRanges(fontHdc, NULL); 3096744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org if (!glyphSetBufferSize) { 3106744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org return; 3116744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 3126744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 3136744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkAutoTDeleteArray<BYTE> glyphSetBuffer(new BYTE[glyphSetBufferSize]); 3146744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org GLYPHSET* glyphSet = 3156744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org reinterpret_cast<LPGLYPHSET>(glyphSetBuffer.get()); 3166744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org if (GetFontUnicodeRanges(fontHdc, glyphSet) != glyphSetBufferSize) { 3176744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org return; 3186744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 3196744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 3206744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org glyphToUnicode->setCount(glyphCount); 3216744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org memset(glyphToUnicode->begin(), 0, glyphCount * sizeof(SkUnichar)); 3226744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org for (DWORD i = 0; i < glyphSet->cRanges; ++i) { 3236744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // There is no guarantee that within a Unicode range, the corresponding 3246744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // glyph id in a font file are continuous. So, even if we have ranges, 3256744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // we can't just use the first and last entry of the range to compute 3266744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // result. We need to enumerate them one by one. 3276744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org int count = glyphSet->ranges[i].cGlyphs; 3286744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkAutoTArray<WCHAR> chars(count + 1); 3296744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org chars[count] = 0; // termintate string 3306744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkAutoTArray<WORD> glyph(count); 3316744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org for (USHORT j = 0; j < count; ++j) { 3326744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org chars[j] = glyphSet->ranges[i].wcLow + j; 3336744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 3346744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org GetGlyphIndicesW(fontHdc, chars.get(), count, glyph.get(), 3356744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org GGI_MARK_NONEXISTING_GLYPHS); 3366744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // If the glyph ID is valid, and the glyph is not mapped, then we will 3376744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // fill in the char id into the vector. If the glyph is mapped already, 3386744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // skip it. 3396744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // TODO(arthurhsu): better improve this. e.g. Get all used char ids from 3406744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // font cache, then generate this mapping table from there. It's 3416744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // unlikely to have collisions since glyph reuse happens mostly for 3426744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // different Unicode pages. 3436744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org for (USHORT j = 0; j < count; ++j) { 3446744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org if (glyph[j] != 0xffff && glyph[j] < glyphCount && 3456744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org (*glyphToUnicode)[glyph[j]] == 0) { 3466744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org (*glyphToUnicode)[glyph[j]] = chars[j]; 3476744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 3486744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 3496744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 3506744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org} 3516744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 35299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com////////////////////////////////////////////////////////////////////////////////////// 35399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 35499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.comstatic int alignTo32(int n) { 35599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com return (n + 31) & ~31; 35699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com} 35799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 35899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.comstruct MyBitmapInfo : public BITMAPINFO { 35999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com RGBQUAD fMoreSpaceForColors[1]; 36099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com}; 36199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 36299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.comclass HDCOffscreen { 36399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.compublic: 36499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HDCOffscreen() { 36599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fFont = 0; 36699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fDC = 0; 36799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fBM = 0; 36899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fBits = NULL; 36999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fWidth = fHeight = 0; 37099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fIsBW = false; 37199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 37299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 37399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com ~HDCOffscreen() { 37499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (fDC) { 37599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com DeleteDC(fDC); 37699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 37799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (fBM) { 37899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com DeleteObject(fBM); 37999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 38099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 38199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 38299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com void init(HFONT font, const XFORM& xform) { 38399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fFont = font; 38499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fXform = xform; 38599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 38699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 38797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const void* draw(const SkGlyph&, bool isBW, size_t* srcRBPtr); 38899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 38999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.comprivate: 39099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HDC fDC; 39199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HBITMAP fBM; 39299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HFONT fFont; 39399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com XFORM fXform; 39499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com void* fBits; // points into fBM 39599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com int fWidth; 39699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com int fHeight; 39799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com bool fIsBW; 398754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com 399754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com enum { 400754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com // will always trigger us to reset the color, since we 4016f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com // should only store 0 or 0x00FFFFFF or gray (0x007F7F7F) 402754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com kInvalid_Color = 12345 403754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com }; 40499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com}; 40599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 406754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.comconst void* HDCOffscreen::draw(const SkGlyph& glyph, bool isBW, 40797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com size_t* srcRBPtr) { 40899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (0 == fDC) { 40999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fDC = CreateCompatibleDC(0); 41099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (0 == fDC) { 41199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com return NULL; 41299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 41399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SetGraphicsMode(fDC, GM_ADVANCED); 41499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SetBkMode(fDC, TRANSPARENT); 41599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SetTextAlign(fDC, TA_LEFT | TA_BASELINE); 41699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SelectObject(fDC, fFont); 41797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com 41897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com COLORREF color = 0x00FFFFFF; 41997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com COLORREF prev = SetTextColor(fDC, color); 42097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com SkASSERT(prev != CLR_INVALID); 42199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 42299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 42399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (fBM && (fIsBW != isBW || fWidth < glyph.fWidth || fHeight < glyph.fHeight)) { 42499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com DeleteObject(fBM); 42599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fBM = 0; 42699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 427754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com fIsBW = isBW; 42899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 42999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fWidth = SkMax32(fWidth, glyph.fWidth); 43099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fHeight = SkMax32(fHeight, glyph.fHeight); 43199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 43299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com int biWidth = isBW ? alignTo32(fWidth) : fWidth; 43399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 43499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (0 == fBM) { 43599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com MyBitmapInfo info; 43699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com sk_bzero(&info, sizeof(info)); 43799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (isBW) { 43899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com RGBQUAD blackQuad = { 0, 0, 0, 0 }; 43999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com RGBQUAD whiteQuad = { 0xFF, 0xFF, 0xFF, 0 }; 44099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiColors[0] = blackQuad; 44199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiColors[1] = whiteQuad; 44299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 44399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biSize = sizeof(info.bmiHeader); 44499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biWidth = biWidth; 44599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biHeight = fHeight; 44699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biPlanes = 1; 44799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biBitCount = isBW ? 1 : 32; 44899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biCompression = BI_RGB; 44999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (isBW) { 45099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biClrUsed = 2; 45199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 45299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fBM = CreateDIBSection(fDC, &info, DIB_RGB_COLORS, &fBits, 0, 0); 45399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (0 == fBM) { 45499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com return NULL; 45599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 45699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SelectObject(fDC, fBM); 45799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 45899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 45999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com // erase 46099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com size_t srcRB = isBW ? (biWidth >> 3) : (fWidth << 2); 46199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com size_t size = fHeight * srcRB; 46297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com memset(fBits, 0, size); 46399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 46499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com XFORM xform = fXform; 46599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com xform.eDx = (float)-glyph.fLeft; 46699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com xform.eDy = (float)-glyph.fTop; 46799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SetWorldTransform(fDC, &xform); 46899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 46999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com uint16_t glyphID = glyph.getGlyphID(); 47039698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com BOOL ret = ExtTextOutW(fDC, 0, 0, ETO_GLYPH_INDEX, NULL, reinterpret_cast<LPCWSTR>(&glyphID), 1, NULL); 47199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com GdiFlush(); 47239698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (0 == ret) { 47339698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com return NULL; 47439698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 47599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com *srcRBPtr = srcRB; 47699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com // offset to the start of the image 47799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com return (const char*)fBits + (fHeight - glyph.fHeight) * srcRB; 47899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com} 47999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 480b8a5c618d2e18d71707ae4dcafbe5153d7ff427freed@google.com////////////////////////////////////////////////////////////////////////////// 48159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 482ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comclass SkScalerContext_Windows : public SkScalerContext { 483ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.compublic: 484ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkScalerContext_Windows(const SkDescriptor* desc); 485ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com virtual ~SkScalerContext_Windows(); 486ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 487ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comprotected: 48897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com virtual unsigned generateGlyphCount() SK_OVERRIDE; 48997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com virtual uint16_t generateCharToGlyph(SkUnichar uni) SK_OVERRIDE; 49097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com virtual void generateAdvance(SkGlyph* glyph) SK_OVERRIDE; 49197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com virtual void generateMetrics(SkGlyph* glyph) SK_OVERRIDE; 492a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com virtual void generateImage(const SkGlyph& glyph) SK_OVERRIDE; 49397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com virtual void generatePath(const SkGlyph& glyph, SkPath* path) SK_OVERRIDE; 494a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com virtual void generateFontMetrics(SkPaint::FontMetrics* mX, 495a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com SkPaint::FontMetrics* mY) SK_OVERRIDE; 49699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 497ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comprivate: 49899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HDCOffscreen fOffscreen; 4995aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org SkScalar fScale; // to get from canonical size to real size 500ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com MAT2 fMat22; 501ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HDC fDDC; 502ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT fSavefont; 503ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT fFont; 504ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SCRIPT_CACHE fSC; 505ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int fGlyphCount; 5061dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 5071dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com HFONT fHiResFont; 5081dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com MAT2 fMat22Identity; 5091dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com SkMatrix fHiResMatrix; 510a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com enum Type { 511a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com kTrueType_Type, kBitmap_Type, 512a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } fType; 513a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com TEXTMETRIC fTM; 514ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com}; 515ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 516ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic float mul2float(SkScalar a, SkScalar b) { 517ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkScalarToFloat(SkScalarMul(a, b)); 518ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 519ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 520ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic FIXED float2FIXED(float x) { 521ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkFixedToFIXED(SkFloatToFixed(x)); 522ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 523ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 5241771cbf43d9a1334e3d870c635b4215bb888dd98digit@google.comSK_DECLARE_STATIC_MUTEX(gFTMutex); 52559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 5261dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com#define HIRES_TEXTSIZE 2048 5271dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com#define HIRES_SHIFT 11 5281dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.comstatic inline SkFixed HiResToFixed(int value) { 5291dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com return value << (16 - HIRES_SHIFT); 5301dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com} 5311dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 5321dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.comstatic bool needHiResMetrics(const SkScalar mat[2][2]) { 5331dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com return mat[1][0] || mat[0][1]; 5341dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com} 5351dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 53682a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.comstatic BYTE compute_quality(const SkScalerContext::Rec& rec) { 53782a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com switch (rec.fMaskFormat) { 53882a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com case SkMask::kBW_Format: 53982a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com return NONANTIALIASED_QUALITY; 54082a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com case SkMask::kLCD16_Format: 54182a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com case SkMask::kLCD32_Format: 54282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com return CLEARTYPE_QUALITY; 54382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com default: 5448351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com if (rec.fFlags & SkScalerContext::kGenA8FromLCD_Flag) { 5458351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com return CLEARTYPE_QUALITY; 5468351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com } else { 5478351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com return ANTIALIASED_QUALITY; 5488351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com } 54982a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com } 55082a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com} 55182a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 552ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comSkScalerContext_Windows::SkScalerContext_Windows(const SkDescriptor* desc) 553ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com : SkScalerContext(desc), fDDC(0), fFont(0), fSavefont(0), fSC(0) 554ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com , fGlyphCount(-1) { 555ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkAutoMutexAcquire ac(gFTMutex); 556ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 557ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fDDC = ::CreateCompatibleDC(NULL); 5581dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com SetGraphicsMode(fDDC, GM_ADVANCED); 559ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SetBkMode(fDDC, TRANSPARENT); 560ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 561ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Scaling by the DPI is inconsistent with how Skia draws elsewhere 562ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com //SkScalar height = -(fRec.fTextSize * GetDeviceCaps(ddc, LOGPIXELSY) / 72); 56359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LOGFONT lf; 56459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com GetLogFontByID(fRec.fFontID, &lf); 565ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com lf.lfHeight = -gCanonicalTextSize; 56682a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com lf.lfQuality = compute_quality(fRec); 567ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fFont = CreateFontIndirect(&lf); 5681dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 5691dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com // if we're rotated, or want fractional widths, create a hires font 5701dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com fHiResFont = 0; 571c84547a8d3cb04f0547db282b34e26abfbe64ec3bungeman@google.com if (needHiResMetrics(fRec.fPost2x2)) { 5721dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com lf.lfHeight = -HIRES_TEXTSIZE; 5731dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com fHiResFont = CreateFontIndirect(&lf); 5741dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 5751dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com fMat22Identity.eM11 = fMat22Identity.eM22 = SkFixedToFIXED(SK_Fixed1); 5761dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com fMat22Identity.eM12 = fMat22Identity.eM21 = SkFixedToFIXED(0); 5771dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 5781dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com // construct a matrix to go from HIRES logical units to our device units 5791dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com fRec.getSingleMatrix(&fHiResMatrix); 5801dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com SkScalar scale = SkScalarInvert(SkIntToScalar(HIRES_TEXTSIZE)); 5811dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com fHiResMatrix.preScale(scale, scale); 5821dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com } 583ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fSavefont = (HFONT)SelectObject(fDDC, fFont); 584a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 585a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (0 == GetTextMetrics(fDDC, &fTM)) { 586a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com ensure_typeface_accessible(fRec.fFontID); 587a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (0 == GetTextMetrics(fDDC, &fTM)) { 588a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fTM.tmPitchAndFamily = TMPF_TRUETYPE; 589a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 590a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 591a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com // Used a logfont on a memory context, should never get a device font. 59290b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com // Therefore all TMPF_DEVICE will be PostScript fonts. 59390b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com 59490b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com // If TMPF_VECTOR is set, one of TMPF_TRUETYPE or TMPF_DEVICE must be set, 59590b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com // otherwise we have a vector FON, which we don't support. 59690b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com // This was determined by testing with Type1 PFM/PFB and OpenTypeCFF OTF, 59790b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com // as well as looking at Wine bugs and sources. 59890b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com SkASSERT(!(fTM.tmPitchAndFamily & TMPF_VECTOR) || 59990b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com (fTM.tmPitchAndFamily & (TMPF_TRUETYPE | TMPF_DEVICE))); 60090b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com 601d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com XFORM xform; 60290b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com if (fTM.tmPitchAndFamily & TMPF_VECTOR) { 603a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com // Truetype or PostScript. 604a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com // Stroked FON also gets here (TMPF_VECTOR), but we don't handle it. 605a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fType = SkScalerContext_Windows::kTrueType_Type; 606a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fScale = fRec.fTextSize / gCanonicalTextSize; 607a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 608d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // fPost2x2 is column-major, left handed (y down). 609d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // XFORM 2x2 is row-major, left handed (y down). 610d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM11 = mul2float(fScale, fRec.fPost2x2[0][0]); 611d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM12 = mul2float(fScale, fRec.fPost2x2[1][0]); 612d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM21 = mul2float(fScale, fRec.fPost2x2[0][1]); 613d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM22 = mul2float(fScale, fRec.fPost2x2[1][1]); 614d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eDx = 0; 615d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eDy = 0; 616d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com 617d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // MAT2 is row major, right handed (y up). 618d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM11 = float2FIXED(xform.eM11); 619d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM12 = float2FIXED(-xform.eM12); 620d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM21 = float2FIXED(-xform.eM21); 621d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM22 = float2FIXED(xform.eM22); 622a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 623a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (needToRenderWithSkia(fRec)) { 624a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com this->forceGenerateImageFromPath(); 625a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 626a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 627a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } else { 628a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com // Assume bitmap 629a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fType = SkScalerContext_Windows::kBitmap_Type; 630a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fScale = SK_Scalar1; 631a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 632d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM11 = 1.0f; 633d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM12 = 0.0f; 634d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM21 = 0.0f; 635d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eM22 = 1.0f; 636d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eDx = 0.0f; 637d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com xform.eDy = 0.0f; 638a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 639d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // fPost2x2 is column-major, left handed (y down). 640d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // MAT2 is row major, right handed (y up). 641a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fMat22.eM11 = SkScalarToFIXED(fRec.fPost2x2[0][0]); 642d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM12 = SkScalarToFIXED(-fRec.fPost2x2[1][0]); 643a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fMat22.eM21 = SkScalarToFIXED(-fRec.fPost2x2[0][1]); 644d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fMat22.eM22 = SkScalarToFIXED(fRec.fPost2x2[1][1]); 645a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 646a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com lf.lfHeight = -SkScalarCeilToInt(fRec.fTextSize); 647a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com HFONT bitmapFont = CreateFontIndirect(&lf); 648a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com SelectObject(fDDC, bitmapFont); 649a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com ::DeleteObject(fFont); 650a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fFont = bitmapFont; 651a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 652a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (0 == GetTextMetrics(fDDC, &fTM)) { 653a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com ensure_typeface_accessible(fRec.fFontID); 654a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com //if the following fails, we'll just draw at gCanonicalTextSize. 655a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com GetTextMetrics(fDDC, &fTM); 656a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 657a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com } 65899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 659d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fOffscreen.init(fFont, xform); 660ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 661ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 662ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comSkScalerContext_Windows::~SkScalerContext_Windows() { 663ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fDDC) { 664ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::SelectObject(fDDC, fSavefont); 665ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::DeleteDC(fDDC); 666ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 667ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fFont) { 668ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::DeleteObject(fFont); 669ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 6701dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com if (fHiResFont) { 6711dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com ::DeleteObject(fHiResFont); 6721dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com } 673ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fSC) { 674ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::ScriptFreeCache(&fSC); 675ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 676ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 677ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 678ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comunsigned SkScalerContext_Windows::generateGlyphCount() { 679ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fGlyphCount < 0) { 680a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (fType == SkScalerContext_Windows::kBitmap_Type) { 681a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com return fTM.tmLastChar; 682a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 683a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fGlyphCount = calculateOutlineGlyphCount(fDDC); 684ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 685ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return fGlyphCount; 686ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 687ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 688ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comuint16_t SkScalerContext_Windows::generateCharToGlyph(SkUnichar uni) { 689ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com uint16_t index = 0; 690ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com WCHAR c[2]; 691ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // TODO(ctguil): Support characters that generate more than one glyph. 692ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (SkUTF16_FromUnichar(uni, (uint16_t*)c) == 1) { 693ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Type1 fonts fail with uniscribe API. Use GetGlyphIndices for plane 0. 694ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkAssertResult(GetGlyphIndicesW(fDDC, c, 1, &index, 0)); 695ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 696ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Use uniscribe to detemine glyph index for non-BMP characters. 697ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Need to add extra item to SCRIPT_ITEM to work around a bug in older 698ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // windows versions. https://bugzilla.mozilla.org/show_bug.cgi?id=366643 699ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SCRIPT_ITEM si[2 + 1]; 700ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int items; 701ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkAssertResult( 702ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SUCCEEDED(ScriptItemize(c, 2, 2, NULL, NULL, si, &items))); 703ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 704ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com WORD log[2]; 705ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SCRIPT_VISATTR vsa; 706ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int glyphs; 707ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkAssertResult(SUCCEEDED(ScriptShape( 708ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fDDC, &fSC, c, 2, 1, &si[0].a, &index, log, &vsa, &glyphs))); 709ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 710ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return index; 711ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 712ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 713ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comvoid SkScalerContext_Windows::generateAdvance(SkGlyph* glyph) { 714ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com this->generateMetrics(glyph); 715ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 716ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 717ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comvoid SkScalerContext_Windows::generateMetrics(SkGlyph* glyph) { 718ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(fDDC); 719ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 720a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (fType == SkScalerContext_Windows::kBitmap_Type) { 721a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com SIZE size; 722a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com WORD glyphs = glyph->getGlyphID(0); 723a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (0 == GetTextExtentPointI(fDDC, &glyphs, 1, &size)) { 724a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fWidth = SkToS16(fTM.tmMaxCharWidth); 725a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } else { 726a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fWidth = SkToS16(size.cx); 727a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 728a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fHeight = SkToS16(size.cy); 729a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 730a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fTop = SkToS16(-fTM.tmAscent); 731a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fLeft = SkToS16(0); 732a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fAdvanceX = SkIntToFixed(glyph->fWidth); 733a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fAdvanceY = 0; 734a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 735d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // Apply matrix to advance. 736a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fAdvanceY = SkFixedMul(SkFIXEDToFixed(fMat22.eM21), glyph->fAdvanceX); 737a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fAdvanceX = SkFixedMul(SkFIXEDToFixed(fMat22.eM11), glyph->fAdvanceX); 738a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 739a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com return; 740a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 741a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 742d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com UINT glyphId = glyph->getGlyphID(0); 743d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com 744ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com GLYPHMETRICS gm; 7451dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com sk_bzero(&gm, sizeof(gm)); 746ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 747d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com DWORD status = GetGlyphOutlineW(fDDC, glyphId, GGO_METRICS | GGO_GLYPH_INDEX, &gm, 0, NULL, &fMat22); 748d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (GDI_ERROR == status) { 74939698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com ensure_typeface_accessible(fRec.fFontID); 750d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com status = GetGlyphOutlineW(fDDC, glyphId, GGO_METRICS | GGO_GLYPH_INDEX, &gm, 0, NULL, &fMat22); 751d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (GDI_ERROR == status) { 752d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->zeroMetrics(); 753d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com return; 754d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 75539698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 756ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 757d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com bool empty = false; 758d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // The black box is either the embedded bitmap size or the outline extent. 759d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // It is 1x1 if nothing is to be drawn, but will also be 1x1 if something very small 760d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // is to be drawn, like a '.'. We need to outset '.' but do not wish to outset ' '. 761d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (1 == gm.gmBlackBoxX && 1 == gm.gmBlackBoxY) { 762d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // If GetGlyphOutline with GGO_NATIVE returns 0, we know there was no outline. 763d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com DWORD bufferSize = GetGlyphOutlineW(fDDC, glyphId, GGO_NATIVE | GGO_GLYPH_INDEX, &gm, 0, NULL, &fMat22); 764d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com empty = (0 == bufferSize); 765d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 7661dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 767d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fTop = SkToS16(-gm.gmptGlyphOrigin.y); 768d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fLeft = SkToS16(gm.gmptGlyphOrigin.x); 769d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (empty) { 770d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fWidth = 0; 771d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fHeight = 0; 772ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 773d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // Outset, since the image may bleed out of the black box. 774d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // For embedded bitmaps the black box should be exact. 775d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // For outlines we need to outset by 1 in all directions for bleed. 776d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // For ClearType we need to outset by 2 for bleed. 777d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fWidth = gm.gmBlackBoxX + 4; 778d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fHeight = gm.gmBlackBoxY + 4; 779d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fTop -= 2; 780d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fLeft -= 2; 781d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 782d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fAdvanceX = SkIntToFixed(gm.gmCellIncX); 783d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fAdvanceY = SkIntToFixed(gm.gmCellIncY); 784d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fRsbDelta = 0; 785d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fLsbDelta = 0; 786d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com 787d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (fHiResFont) { 788d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SelectObject(fDDC, fHiResFont); 789d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com sk_bzero(&gm, sizeof(gm)); 790d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com status = GetGlyphOutlineW(fDDC, glyphId, GGO_METRICS | GGO_GLYPH_INDEX, &gm, 0, NULL, &fMat22Identity); 791d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (GDI_ERROR != status) { 792d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkPoint advance; 793d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com fHiResMatrix.mapXY(SkIntToScalar(gm.gmCellIncX), SkIntToScalar(gm.gmCellIncY), &advance); 794d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fAdvanceX = SkScalarToFixed(advance.fX); 795d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com glyph->fAdvanceY = SkScalarToFixed(advance.fY); 796d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 797d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SelectObject(fDDC, fFont); 798ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 799ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 800ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 801ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comvoid SkScalerContext_Windows::generateFontMetrics(SkPaint::FontMetrics* mx, SkPaint::FontMetrics* my) { 802ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com// Note: This code was borrowed from generateLineHeight, which has a note 803ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com// stating that it may be incorrect. 804ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (!(mx || my)) 805ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return; 806ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 807ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(fDDC); 808ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 809a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (fType == SkScalerContext_Windows::kBitmap_Type) { 810a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (mx) { 811a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com mx->fTop = SkIntToScalar(-fTM.tmAscent); 812a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com mx->fAscent = SkIntToScalar(-fTM.tmAscent); 813a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com mx->fDescent = -SkIntToScalar(fTM.tmDescent); 814a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com mx->fBottom = SkIntToScalar(fTM.tmDescent); 815a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com mx->fLeading = SkIntToScalar(fTM.tmInternalLeading 816a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com + fTM.tmExternalLeading); 817a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 818a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 819a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (my) { 820a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com my->fTop = SkIntToScalar(-fTM.tmAscent); 821a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com my->fAscent = SkIntToScalar(-fTM.tmAscent); 822a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com my->fDescent = SkIntToScalar(-fTM.tmDescent); 823a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com my->fBottom = SkIntToScalar(fTM.tmDescent); 824a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com my->fLeading = SkIntToScalar(fTM.tmInternalLeading 825a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com + fTM.tmExternalLeading); 826a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 827a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com return; 828a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 829a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 830ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com OUTLINETEXTMETRIC otm; 831ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 832ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com uint32_t ret = GetOutlineTextMetrics(fDDC, sizeof(otm), &otm); 83339698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (GDI_ERROR == ret) { 83439698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com ensure_typeface_accessible(fRec.fFontID); 83539698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com ret = GetOutlineTextMetrics(fDDC, sizeof(otm), &otm); 83639698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 837ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (sizeof(otm) != ret) { 838a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com return; 839ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 840ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 841ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (mx) { 842ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com mx->fTop = -fScale * otm.otmTextMetrics.tmAscent; 8435aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org mx->fAscent = -fScale * otm.otmAscent; 8445aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org mx->fDescent = -fScale * otm.otmDescent; 8455aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org mx->fBottom = fScale * otm.otmTextMetrics.tmDescent; 8465aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org mx->fLeading = fScale * (otm.otmTextMetrics.tmInternalLeading 8475aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org + otm.otmTextMetrics.tmExternalLeading); 848ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 849ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 850ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (my) { 8515aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org my->fTop = -fScale * otm.otmTextMetrics.tmAscent; 8525aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org my->fAscent = -fScale * otm.otmAscent; 8535aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org my->fDescent = -fScale * otm.otmDescent; 8545aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org my->fBottom = fScale * otm.otmTextMetrics.tmDescent; 8555aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org my->fLeading = fScale * (otm.otmTextMetrics.tmInternalLeading 8565aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org + otm.otmTextMetrics.tmExternalLeading); 857ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 858ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 859ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 8607430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com//////////////////////////////////////////////////////////////////////////////////////// 8617430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com 8627430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.comstatic void build_power_table(uint8_t table[], float ee) { 8637430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com for (int i = 0; i < 256; i++) { 8647430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com float x = i / 255.f; 86597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com x = sk_float_pow(x, ee); 8667430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com int xx = SkScalarRound(SkFloatToScalar(x * 255)); 8677430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com table[i] = SkToU8(xx); 8687430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com } 8697430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com} 8707430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com 87197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com/** 87297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * This will invert the gamma applied by GDI (gray-scale antialiased), so we 87397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * can get linear values. 87497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * 87597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * GDI grayscale appears to use a hard-coded gamma of 2.3. 87697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * 87797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * GDI grayscale appears to draw using the black and white rasterizer at four 87897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * times the size and then downsamples to compute the coverage mask. As a 87997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * result there are only seventeen total grays. This lack of fidelity means 88097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * that shifting into other color spaces is imprecise. 88197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com */ 88297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic const uint8_t* getInverseGammaTableGDI() { 88397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com static bool gInited; 88497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com static uint8_t gTableGdi[256]; 88597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com if (!gInited) { 88697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com build_power_table(gTableGdi, 2.3f); 88797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com gInited = true; 88897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } 88997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com return gTableGdi; 89097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com} 89197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com 89297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com/** 89397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * This will invert the gamma applied by GDI ClearType, so we can get linear 89497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * values. 89597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * 89697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * GDI ClearType uses SPI_GETFONTSMOOTHINGCONTRAST / 1000 as the gamma value. 89797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * If this value is not specified, the default is a gamma of 1.4. 89897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com */ 89997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic const uint8_t* getInverseGammaTableClearType() { 9007430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com static bool gInited; 90197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com static uint8_t gTableClearType[256]; 9027430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com if (!gInited) { 9037430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com UINT level = 0; 9047430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com if (!SystemParametersInfo(SPI_GETFONTSMOOTHINGCONTRAST, 0, &level, 0) || !level) { 9057430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com // can't get the data, so use a default 9067430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com level = 1400; 9077430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com } 90897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com build_power_table(gTableClearType, level / 1000.0f); 9097430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com gInited = true; 9107430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com } 91197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com return gTableClearType; 9127430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com} 9137430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com 914ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkColorPriv.h" 915ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 9166385314686875ecb484d95b33fcbf08890b5144dbungeman@google.com//Cannot assume that the input rgb is gray due to possible setting of kGenA8FromLCD_Flag. 91797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 91897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic inline uint8_t rgb_to_a8(SkGdiRGB rgb, const uint8_t* table8) { 9196385314686875ecb484d95b33fcbf08890b5144dbungeman@google.com U8CPU r = (rgb >> 16) & 0xFF; 9206385314686875ecb484d95b33fcbf08890b5144dbungeman@google.com U8CPU g = (rgb >> 8) & 0xFF; 9216385314686875ecb484d95b33fcbf08890b5144dbungeman@google.com U8CPU b = (rgb >> 0) & 0xFF; 9221bfe01d06b896eca94c80d9af9a6bb30216b5e42bungeman@google.com return sk_apply_lut_if<APPLY_PREBLEND>(SkComputeLuminance(r, g, b), table8); 92382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com} 92482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 92597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 92697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic inline uint16_t rgb_to_lcd16(SkGdiRGB rgb, const uint8_t* tableR, 92797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableG, 92897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableB) { 92997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU r = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 16) & 0xFF, tableR); 93097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU g = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 8) & 0xFF, tableG); 93197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU b = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 0) & 0xFF, tableB); 93297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com return SkPack888ToRGB16(r, g, b); 933ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 934ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 93597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 93697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic inline SkPMColor rgb_to_lcd32(SkGdiRGB rgb, const uint8_t* tableR, 93797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableG, 93897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableB) { 93997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU r = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 16) & 0xFF, tableR); 94097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU g = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 8) & 0xFF, tableG); 94197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU b = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 0) & 0xFF, tableB); 94297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com return SkPackARGB32(0xFF, r, g, b); 943754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com} 944754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com 94582cff020b7e055f2d01686f060a884df842306edreed@google.com// Is this GDI color neither black nor white? If so, we have to keep this 94682cff020b7e055f2d01686f060a884df842306edreed@google.com// image as is, rather than smashing it down to a BW mask. 94782cff020b7e055f2d01686f060a884df842306edreed@google.com// 94882cff020b7e055f2d01686f060a884df842306edreed@google.com// returns int instead of bool, since we don't want/have to pay to convert 94982cff020b7e055f2d01686f060a884df842306edreed@google.com// the zero/non-zero value into a bool 95082cff020b7e055f2d01686f060a884df842306edreed@google.comstatic int is_not_black_or_white(SkGdiRGB c) { 95182cff020b7e055f2d01686f060a884df842306edreed@google.com // same as (but faster than) 95282cff020b7e055f2d01686f060a884df842306edreed@google.com // c &= 0x00FFFFFF; 95382cff020b7e055f2d01686f060a884df842306edreed@google.com // return 0 == c || 0x00FFFFFF == c; 95482cff020b7e055f2d01686f060a884df842306edreed@google.com return (c + (c & 1)) & 0x00FFFFFF; 9555e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 9565e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 9575e2df64215f12660ab26b96816f40ad8e32bf16freed@google.comstatic bool is_rgb_really_bw(const SkGdiRGB* src, int width, int height, int srcRB) { 9585e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int y = 0; y < height; ++y) { 9595e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int x = 0; x < width; ++x) { 96082cff020b7e055f2d01686f060a884df842306edreed@google.com if (is_not_black_or_white(src[x])) { 9615e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com return false; 9625e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 9635e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 9646f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com src = SkTAddByteOffset(src, srcRB); 9655e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 9665e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com return true; 9675e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 9685e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 96997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com// gdi's bitmap is upside-down, so we reverse dst walking in Y 97097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com// whenever we copy it into skia's buffer 9715e2df64215f12660ab26b96816f40ad8e32bf16freed@google.comstatic void rgb_to_bw(const SkGdiRGB* SK_RESTRICT src, size_t srcRB, 97297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const SkGlyph& glyph) { 9735e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const int width = glyph.fWidth; 9745e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const size_t dstRB = (width + 7) >> 3; 9755e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com uint8_t* SK_RESTRICT dst = (uint8_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 9765e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 9775e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com int byteCount = width >> 3; 9785e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com int bitCount = width & 7; 9795e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 9805e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com // adjust srcRB to skip the values in our byteCount loop, 9815e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com // since we increment src locally there 9825e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com srcRB -= byteCount * 8 * sizeof(SkGdiRGB); 9835e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 9845e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int y = 0; y < glyph.fHeight; ++y) { 9855e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com if (byteCount > 0) { 9865e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int i = 0; i < byteCount; ++i) { 9877a230142e01c5a8cf955be12a5f287589b551634reed@google.com unsigned byte = 0; 98897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[0] & (1 << 7); 98997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[1] & (1 << 6); 99097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[2] & (1 << 5); 99197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[3] & (1 << 4); 99297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[4] & (1 << 3); 99397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[5] & (1 << 2); 99497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[6] & (1 << 1); 99597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[7] & (1 << 0); 9966a8f14d9633b330fb8051581828a0aaf4403d1a9reed@google.com dst[i] = byte; 9975e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com src += 8; 9985e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 9995e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 10005e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com if (bitCount > 0) { 10015e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com unsigned byte = 0; 10025e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com unsigned mask = 0x80; 10035e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int i = 0; i < bitCount; i++) { 100497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[i] & mask; 10055e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com mask >>= 1; 10065e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 10075e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com dst[byteCount] = byte; 10085e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 10096f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com src = SkTAddByteOffset(src, srcRB); 10105e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com dst -= dstRB; 10115e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 10125e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 10135e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 101497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 10155e2df64215f12660ab26b96816f40ad8e32bf16freed@google.comstatic void rgb_to_a8(const SkGdiRGB* SK_RESTRICT src, size_t srcRB, 101697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const SkGlyph& glyph, const uint8_t* table8) { 10175e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const size_t dstRB = glyph.rowBytes(); 10185e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const int width = glyph.fWidth; 10195e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com uint8_t* SK_RESTRICT dst = (uint8_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 10205e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 10215e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int y = 0; y < glyph.fHeight; y++) { 10225e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int i = 0; i < width; i++) { 102397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com dst[i] = rgb_to_a8<APPLY_PREBLEND>(src[i], table8); 10245e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 10256f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com src = SkTAddByteOffset(src, srcRB); 10265e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com dst -= dstRB; 10275e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 10285e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 10295e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 103097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 103197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic void rgb_to_lcd16(const SkGdiRGB* SK_RESTRICT src, size_t srcRB, const SkGlyph& glyph, 103297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableR, const uint8_t* tableG, const uint8_t* tableB) { 10335e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const size_t dstRB = glyph.rowBytes(); 10345e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const int width = glyph.fWidth; 10355e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com uint16_t* SK_RESTRICT dst = (uint16_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 10365e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 10375e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int y = 0; y < glyph.fHeight; y++) { 10385e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int i = 0; i < width; i++) { 103997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com dst[i] = rgb_to_lcd16<APPLY_PREBLEND>(src[i], tableR, tableG, tableB); 10405e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 10416f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com src = SkTAddByteOffset(src, srcRB); 10425e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com dst = (uint16_t*)((char*)dst - dstRB); 10435e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 10445e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 10455e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 104697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 104797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic void rgb_to_lcd32(const SkGdiRGB* SK_RESTRICT src, size_t srcRB, const SkGlyph& glyph, 104897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableR, const uint8_t* tableG, const uint8_t* tableB) { 1049754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com const size_t dstRB = glyph.rowBytes(); 1050754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com const int width = glyph.fWidth; 105197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com uint32_t* SK_RESTRICT dst = (uint32_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 1052754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com 1053754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com for (int y = 0; y < glyph.fHeight; y++) { 1054754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com for (int i = 0; i < width; i++) { 105597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com dst[i] = rgb_to_lcd32<APPLY_PREBLEND>(src[i], tableR, tableG, tableB); 1056754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } 10576f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com src = SkTAddByteOffset(src, srcRB); 105897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com dst = (uint32_t*)((char*)dst - dstRB); 1059754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } 1060754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com} 1061754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com 10626f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.comstatic inline unsigned clamp255(unsigned x) { 10636f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com SkASSERT(x <= 256); 10646f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com return x - (x >> 8); 10656f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com} 10666f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com 1067a76de72a6036da0a6b051b14411b80941971f881bungeman@google.comvoid SkScalerContext_Windows::generateImage(const SkGlyph& glyph) { 106897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com SkAutoMutexAcquire ac(gFTMutex); 1069ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(fDDC); 1070ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 10716271117d826098c1399cf7442f8eea2d665cb78areed@google.com const bool isBW = SkMask::kBW_Format == fRec.fMaskFormat; 107282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com const bool isAA = !isLCD(fRec); 107382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 107499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com size_t srcRB; 107597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const void* bits = fOffscreen.draw(glyph, isBW, &srcRB); 107639698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (NULL == bits) { 107739698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com ensure_typeface_accessible(fRec.fFontID); 107897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com bits = fOffscreen.draw(glyph, isBW, &srcRB); 107939698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (NULL == bits) { 108039698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com sk_bzero(glyph.fImage, glyph.computeImageSize()); 108139698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com return; 108239698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 108382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com } 108482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 108597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com if (!isBW) { 10861bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com const uint8_t* table; 10871bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com //The offscreen contains a GDI blit if isAA and kGenA8FromLCD_Flag is not set. 10881bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com //Otherwise the offscreen contains a ClearType blit. 10891bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com if (isAA && !(fRec.fFlags & SkScalerContext::kGenA8FromLCD_Flag)) { 10901bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com table = getInverseGammaTableGDI(); 10911bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com } else { 10921bd2d67702a5c14011f02e23b3724965f82c4780bungeman@google.com table = getInverseGammaTableClearType(); 109397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } 109497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //Note that the following cannot really be integrated into the 109597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //pre-blend, since we may not be applying the pre-blend; when we aren't 109697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //applying the pre-blend it means that a filter wants linear anyway. 109797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //Other code may also be applying the pre-blend, so we'd need another 109897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //one with this and one without. 10996f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com SkGdiRGB* addr = (SkGdiRGB*)bits; 11006f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com for (int y = 0; y < glyph.fHeight; ++y) { 11016f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com for (int x = 0; x < glyph.fWidth; ++x) { 11026f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com int r = (addr[x] >> 16) & 0xFF; 11036f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com int g = (addr[x] >> 8) & 0xFF; 11046f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com int b = (addr[x] >> 0) & 0xFF; 11057430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com addr[x] = (table[r] << 16) | (table[g] << 8) | table[b]; 11066f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com } 11076f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com addr = SkTAddByteOffset(addr, srcRB); 11086f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com } 11096f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com } 11106f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com 111182a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com int width = glyph.fWidth; 111282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com size_t dstRB = glyph.rowBytes(); 111382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com if (isBW) { 111482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com const uint8_t* src = (const uint8_t*)bits; 111582a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com uint8_t* dst = (uint8_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 111682a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com for (int y = 0; y < glyph.fHeight; y++) { 111782a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com memcpy(dst, src, dstRB); 111882a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com src += srcRB; 111982a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com dst -= dstRB; 1120ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 112182a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com } else if (isAA) { 11226f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com // since the caller may require A8 for maskfilters, we can't check for BW 11236f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com // ... until we have the caller tell us that explicitly 11245e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const SkGdiRGB* src = (const SkGdiRGB*)bits; 1125a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com if (fPreBlend.isApplicable()) { 1126a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com rgb_to_a8<true>(src, srcRB, glyph, fPreBlend.fG); 112797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } else { 1128a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com rgb_to_a8<false>(src, srcRB, glyph, fPreBlend.fG); 112997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } 113082a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com } else { // LCD16 11315e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const SkGdiRGB* src = (const SkGdiRGB*)bits; 11325e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com if (is_rgb_really_bw(src, width, glyph.fHeight, srcRB)) { 113397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com rgb_to_bw(src, srcRB, glyph); 11345e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com ((SkGlyph*)&glyph)->fMaskFormat = SkMask::kBW_Format; 11355e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } else { 1136754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com if (SkMask::kLCD16_Format == glyph.fMaskFormat) { 1137a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com if (fPreBlend.isApplicable()) { 1138a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com rgb_to_lcd16<true>(src, srcRB, glyph, 1139a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com fPreBlend.fR, fPreBlend.fG, fPreBlend.fB); 114097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } else { 1141a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com rgb_to_lcd16<false>(src, srcRB, glyph, 1142a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com fPreBlend.fR, fPreBlend.fG, fPreBlend.fB); 114397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } 1144754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } else { 1145754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com SkASSERT(SkMask::kLCD32_Format == glyph.fMaskFormat); 1146a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com if (fPreBlend.isApplicable()) { 1147a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com rgb_to_lcd32<true>(src, srcRB, glyph, 1148a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com fPreBlend.fR, fPreBlend.fG, fPreBlend.fB); 114997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } else { 1150a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com rgb_to_lcd32<false>(src, srcRB, glyph, 1151a76de72a6036da0a6b051b14411b80941971f881bungeman@google.com fPreBlend.fR, fPreBlend.fG, fPreBlend.fB); 115297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } 1153754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } 1154ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1155ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1156ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1157ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1158ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comvoid SkScalerContext_Windows::generatePath(const SkGlyph& glyph, SkPath* path) { 1159ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1160d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkAutoMutexAcquire ac(gFTMutex); 1161ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1162ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(&glyph && path); 1163ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(fDDC); 1164ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1165ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com path->reset(); 1166ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1167ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com GLYPHMETRICS gm; 1168ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com uint32_t total_size = GetGlyphOutlineW(fDDC, glyph.fID, GGO_NATIVE | GGO_GLYPH_INDEX, &gm, BUFFERSIZE, glyphbuf, &fMat22); 116939698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (GDI_ERROR == total_size) { 117039698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com ensure_typeface_accessible(fRec.fFontID); 117139698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com total_size = GetGlyphOutlineW(fDDC, glyph.fID, GGO_NATIVE | GGO_GLYPH_INDEX, &gm, BUFFERSIZE, glyphbuf, &fMat22); 1172d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (GDI_ERROR == total_size) { 1173d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkASSERT(false); 1174d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com return; 1175d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 117639698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 1177ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1178d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const uint8_t* cur_glyph = glyphbuf; 1179d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const uint8_t* end_glyph = glyphbuf + total_size; 1180ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1181d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com while (cur_glyph < end_glyph) { 1182d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const TTPOLYGONHEADER* th = (TTPOLYGONHEADER*)cur_glyph; 1183ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1184d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const uint8_t* end_poly = cur_glyph + th->cb; 1185d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const uint8_t* cur_poly = cur_glyph + sizeof(TTPOLYGONHEADER); 1186ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1187d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com path->moveTo(SkFixedToScalar( SkFIXEDToFixed(th->pfxStart.x)), 1188d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(th->pfxStart.y))); 1189ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1190d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com while (cur_poly < end_poly) { 1191d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com const TTPOLYCURVE* pc = (const TTPOLYCURVE*)cur_poly; 1192ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1193d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (pc->wType == TT_PRIM_LINE) { 1194d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com for (uint16_t i = 0; i < pc->cpfx; i++) { 1195d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com path->lineTo(SkFixedToScalar( SkFIXEDToFixed(pc->apfx[i].x)), 1196d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(pc->apfx[i].y))); 1197ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1198d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com } 1199ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1200d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (pc->wType == TT_PRIM_QSPLINE) { 1201d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com for (uint16_t u = 0; u < pc->cpfx - 1; u++) { // Walk through points in spline 1202d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com POINTFX pnt_b = pc->apfx[u]; // B is always the current point 1203d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com POINTFX pnt_c = pc->apfx[u+1]; 1204ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1205d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com if (u < pc->cpfx - 2) { // If not on last spline, compute C 1206d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com pnt_c.x = SkFixedToFIXED(SkFixedAve(SkFIXEDToFixed(pnt_b.x), 1207d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFIXEDToFixed(pnt_c.x))); 1208d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com pnt_c.y = SkFixedToFIXED(SkFixedAve(SkFIXEDToFixed(pnt_b.y), 1209d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFIXEDToFixed(pnt_c.y))); 1210ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1211d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com 1212d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com path->quadTo(SkFixedToScalar( SkFIXEDToFixed(pnt_b.x)), 1213d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(pnt_b.y)), 1214d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFixedToScalar( SkFIXEDToFixed(pnt_c.x)), 1215d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com SkFixedToScalar(-SkFIXEDToFixed(pnt_c.y))); 1216ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1217ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1218d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com // Advance past this TTPOLYCURVE. 1219d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com cur_poly += sizeof(WORD) * 2 + sizeof(POINTFX) * pc->cpfx; 1220ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1221d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com cur_glyph += th->cb; 1222d1c7f71ee371738a8c7896a4f06d28b32e3c713ebungeman@google.com path->close(); 1223ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1224ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1225ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1226e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.comstatic void logfont_for_name(const char* familyName, LOGFONT& lf) { 1227e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com memset(&lf, 0, sizeof(LOGFONT)); 1228e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com#ifdef UNICODE 1229e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com // Get the buffer size needed first. 1230e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com size_t str_len = ::MultiByteToWideChar(CP_UTF8, 0, familyName, 1231e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com -1, NULL, 0); 1232e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com // Allocate a buffer (str_len already has terminating null 1233e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com // accounted for). 1234e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com wchar_t *wideFamilyName = new wchar_t[str_len]; 1235e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com // Now actually convert the string. 1236e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com ::MultiByteToWideChar(CP_UTF8, 0, familyName, -1, 1237e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com wideFamilyName, str_len); 1238e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com ::wcsncpy(lf.lfFaceName, wideFamilyName, LF_FACESIZE - 1); 1239e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com delete [] wideFamilyName; 1240e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com lf.lfFaceName[LF_FACESIZE-1] = L'\0'; 1241e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com#else 1242e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com ::strncpy(lf.lfFaceName, familyName, LF_FACESIZE - 1); 1243e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com lf.lfFaceName[LF_FACESIZE - 1] = '\0'; 1244e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com#endif 1245e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com} 1246e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com 12477103f182ce61280eacb35f1832df350b642a5381bungeman@google.comstatic void tchar_to_skstring(const TCHAR* t, SkString* s) { 1248e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com#ifdef UNICODE 12497103f182ce61280eacb35f1832df350b642a5381bungeman@google.com size_t sSize = WideCharToMultiByte(CP_UTF8, 0, t, -1, NULL, 0, NULL, NULL); 12507103f182ce61280eacb35f1832df350b642a5381bungeman@google.com s->resize(sSize); 12517103f182ce61280eacb35f1832df350b642a5381bungeman@google.com WideCharToMultiByte(CP_UTF8, 0, t, -1, s->writable_str(), sSize, NULL, NULL); 1252e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com#else 12537103f182ce61280eacb35f1832df350b642a5381bungeman@google.com s->set(t); 1254e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com#endif 1255e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com} 1256e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com 1257e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.comvoid SkFontHost::Serialize(const SkTypeface* rawFace, SkWStream* stream) { 1258e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com const LogFontTypeface* face = static_cast<const LogFontTypeface*>(rawFace); 1259e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com SkFontDescriptor descriptor(face->style()); 1260e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com 12617103f182ce61280eacb35f1832df350b642a5381bungeman@google.com // Get the actual name of the typeface. The logfont may not know this. 12627103f182ce61280eacb35f1832df350b642a5381bungeman@google.com HFONT font = CreateFontIndirect(&face->fLogFont); 12637103f182ce61280eacb35f1832df350b642a5381bungeman@google.com 12647103f182ce61280eacb35f1832df350b642a5381bungeman@google.com HDC deviceContext = ::CreateCompatibleDC(NULL); 12657103f182ce61280eacb35f1832df350b642a5381bungeman@google.com HFONT savefont = (HFONT)SelectObject(deviceContext, font); 12667103f182ce61280eacb35f1832df350b642a5381bungeman@google.com 12677103f182ce61280eacb35f1832df350b642a5381bungeman@google.com int fontNameLen; //length of fontName in TCHARS. 12687103f182ce61280eacb35f1832df350b642a5381bungeman@google.com if (0 == (fontNameLen = GetTextFace(deviceContext, 0, NULL))) { 12697103f182ce61280eacb35f1832df350b642a5381bungeman@google.com SkFontHost::EnsureTypefaceAccessible(*rawFace); 12707103f182ce61280eacb35f1832df350b642a5381bungeman@google.com if (0 == (fontNameLen = GetTextFace(deviceContext, 0, NULL))) { 12717103f182ce61280eacb35f1832df350b642a5381bungeman@google.com fontNameLen = 0; 12727103f182ce61280eacb35f1832df350b642a5381bungeman@google.com } 12737103f182ce61280eacb35f1832df350b642a5381bungeman@google.com } 12747103f182ce61280eacb35f1832df350b642a5381bungeman@google.com 12757103f182ce61280eacb35f1832df350b642a5381bungeman@google.com SkAutoSTArray<LF_FULLFACESIZE, TCHAR> fontName(fontNameLen+1); 12767103f182ce61280eacb35f1832df350b642a5381bungeman@google.com if (0 == GetTextFace(deviceContext, fontNameLen, fontName.get())) { 12777103f182ce61280eacb35f1832df350b642a5381bungeman@google.com SkFontHost::EnsureTypefaceAccessible(*rawFace); 12787103f182ce61280eacb35f1832df350b642a5381bungeman@google.com if (0 == GetTextFace(deviceContext, fontNameLen, fontName.get())) { 12797103f182ce61280eacb35f1832df350b642a5381bungeman@google.com fontName[0] = 0; 12807103f182ce61280eacb35f1832df350b642a5381bungeman@google.com } 12817103f182ce61280eacb35f1832df350b642a5381bungeman@google.com } 12827103f182ce61280eacb35f1832df350b642a5381bungeman@google.com 12837103f182ce61280eacb35f1832df350b642a5381bungeman@google.com if (deviceContext) { 12847103f182ce61280eacb35f1832df350b642a5381bungeman@google.com ::SelectObject(deviceContext, savefont); 12857103f182ce61280eacb35f1832df350b642a5381bungeman@google.com ::DeleteDC(deviceContext); 12867103f182ce61280eacb35f1832df350b642a5381bungeman@google.com } 12877103f182ce61280eacb35f1832df350b642a5381bungeman@google.com if (font) { 12887103f182ce61280eacb35f1832df350b642a5381bungeman@google.com ::DeleteObject(font); 12897103f182ce61280eacb35f1832df350b642a5381bungeman@google.com } 12907103f182ce61280eacb35f1832df350b642a5381bungeman@google.com 1291e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com SkString familyName; 12927103f182ce61280eacb35f1832df350b642a5381bungeman@google.com tchar_to_skstring(fontName.get(), &familyName); 1293e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com descriptor.setFamilyName(familyName.c_str()); 1294e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com //TODO: FileName and PostScriptName currently unsupported. 1295e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com 1296e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com descriptor.serialize(stream); 1297e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com 1298e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com if (face->fSerializeAsStream) { 1299e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com // store the entire font in the fontData 1300e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com SkAutoTUnref<SkStream> fontStream(SkFontHost::OpenStream(face->uniqueID())); 1301e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com const uint32_t length = fontStream->getLength(); 1302e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com 1303e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com stream->writePackedUInt(length); 1304e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com stream->writeStream(fontStream, length); 1305e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com } else { 1306e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com stream->writePackedUInt(0); 1307e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com } 1308ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1309ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1310ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comSkTypeface* SkFontHost::Deserialize(SkStream* stream) { 1311e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com SkFontDescriptor descriptor(stream); 1312e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com 1313e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com const uint32_t customFontDataLength = stream->readPackedUInt(); 1314e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com if (customFontDataLength > 0) { 1315e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com // generate a new stream to store the custom typeface 1316e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com SkAutoTUnref<SkMemoryStream> fontStream(SkNEW_ARGS(SkMemoryStream, (customFontDataLength - 1))); 1317e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com stream->read((void*)fontStream->getMemoryBase(), customFontDataLength - 1); 1318e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com 1319e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com return CreateTypefaceFromStream(fontStream.get()); 1320e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com } 1321e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com 1322e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com return SkFontHost::CreateTypeface(NULL, descriptor.getFamilyName(), descriptor.getStyle()); 1323ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1324ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1325ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic bool getWidthAdvance(HDC hdc, int gId, int16_t* advance) { 1326ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Initialize the MAT2 structure to the identify transformation matrix. 1327ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com static const MAT2 mat2 = {SkScalarToFIXED(1), SkScalarToFIXED(0), 1328ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkScalarToFIXED(0), SkScalarToFIXED(1)}; 1329ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int flags = GGO_METRICS | GGO_GLYPH_INDEX; 1330ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com GLYPHMETRICS gm; 1331ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (GDI_ERROR == GetGlyphOutline(hdc, gId, flags, &gm, 0, NULL, &mat2)) { 1332ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return false; 1333ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1334ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(advance); 1335ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com *advance = gm.gmCellIncX; 1336ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return true; 1337ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1338ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1339ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com// static 1340ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comSkAdvancedTypefaceMetrics* SkFontHost::GetAdvancedTypefaceMetrics( 1341325cb9aa17b94258b362082eb3a799524f4345f3vandebo@chromium.org uint32_t fontID, 134237ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org SkAdvancedTypefaceMetrics::PerGlyphInfo perGlyphInfo, 134337ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org const uint32_t* glyphIDs, 134437ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org uint32_t glyphIDsCount) { 134559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LOGFONT lf; 134659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com GetLogFontByID(fontID, &lf); 1347ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkAdvancedTypefaceMetrics* info = NULL; 1348ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1349ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HDC hdc = CreateCompatibleDC(NULL); 1350ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT font = CreateFontIndirect(&lf); 1351ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT savefont = (HFONT)SelectObject(hdc, font); 1352ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT designFont = NULL; 1353ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 135405b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com const char stem_chars[] = {'i', 'I', '!', '1'}; 135505b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com int16_t min_width; 135605b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com unsigned glyphCount; 135705b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com 1358ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // To request design units, create a logical font whose height is specified 1359ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // as unitsPerEm. 1360ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com OUTLINETEXTMETRIC otm; 136139698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com unsigned int otmRet = GetOutlineTextMetrics(hdc, sizeof(otm), &otm); 136239698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (0 == otmRet) { 136339698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com ensure_typeface_accessible(fontID); 136439698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com otmRet = GetOutlineTextMetrics(hdc, sizeof(otm), &otm); 136539698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 136639698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (!otmRet || !GetTextFace(hdc, LF_FACESIZE, lf.lfFaceName)) { 1367ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com goto Error; 1368ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1369ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com lf.lfHeight = -SkToS32(otm.otmEMSquare); 1370ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com designFont = CreateFontIndirect(&lf); 1371ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SelectObject(hdc, designFont); 1372ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (!GetOutlineTextMetrics(hdc, sizeof(otm), &otm)) { 1373ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com goto Error; 1374ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1375a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyphCount = calculateOutlineGlyphCount(hdc); 1376ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1377ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info = new SkAdvancedTypefaceMetrics; 1378ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fEmSize = otm.otmEMSquare; 1379ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fMultiMaster = false; 1380ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fLastGlyphID = SkToU16(glyphCount - 1); 1381ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle = 0; 13827103f182ce61280eacb35f1832df350b642a5381bungeman@google.com tchar_to_skstring(lf.lfFaceName, &info->fFontName); 1383ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 13846744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org if (perGlyphInfo & SkAdvancedTypefaceMetrics::kToUnicode_PerGlyphInfo) { 13856744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org populate_glyph_to_unicode(hdc, glyphCount, &(info->fGlyphToUnicode)); 13866744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 13876744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 1388d41e70de196e78e21e1001d23a7259785cbd0835vandebo@chromium.org if (glyphCount > 0 && 1389d41e70de196e78e21e1001d23a7259785cbd0835vandebo@chromium.org (otm.otmTextMetrics.tmPitchAndFamily & TMPF_TRUETYPE)) { 1390ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fType = SkAdvancedTypefaceMetrics::kTrueType_Font; 1391ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 1392ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fType = SkAdvancedTypefaceMetrics::kOther_Font; 1393ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fItalicAngle = 0; 1394ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fAscent = 0; 1395ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fDescent = 0; 1396ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStemV = 0; 1397ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fCapHeight = 0; 1398ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fBBox = SkIRect::MakeEmpty(); 1399ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return info; 1400ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 14015aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org 1402ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // If this bit is clear the font is a fixed pitch font. 1403ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (!(otm.otmTextMetrics.tmPitchAndFamily & TMPF_FIXED_PITCH)) { 1404ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kFixedPitch_Style; 1405ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1406ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (otm.otmTextMetrics.tmItalic) { 1407ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kItalic_Style; 1408ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1409ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Setting symbolic style by default for now. 1410ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kSymbolic_Style; 1411ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (otm.otmTextMetrics.tmPitchAndFamily & FF_ROMAN) { 1412ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kSerif_Style; 1413ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else if (otm.otmTextMetrics.tmPitchAndFamily & FF_SCRIPT) { 1414ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kScript_Style; 1415ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1416ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1417ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // The main italic angle of the font, in tenths of a degree counterclockwise 1418ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // from vertical. 1419ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fItalicAngle = otm.otmItalicAngle / 10; 1420ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fAscent = SkToS16(otm.otmTextMetrics.tmAscent); 1421ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fDescent = SkToS16(-otm.otmTextMetrics.tmDescent); 1422ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // TODO(ctguil): Use alternate cap height calculation. 1423ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // MSDN says otmsCapEmHeight is not support but it is returning a value on 1424ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // my Win7 box. 1425ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fCapHeight = otm.otmsCapEmHeight; 1426ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fBBox = 1427ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkIRect::MakeLTRB(otm.otmrcFontBox.left, otm.otmrcFontBox.top, 1428ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com otm.otmrcFontBox.right, otm.otmrcFontBox.bottom); 1429ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1430ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Figure out a good guess for StemV - Min width of i, I, !, 1. 1431ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // This probably isn't very good with an italic font. 143205b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com min_width = SHRT_MAX; 1433ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStemV = 0; 1434ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com for (size_t i = 0; i < SK_ARRAY_COUNT(stem_chars); i++) { 1435ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ABC abcWidths; 1436ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (GetCharABCWidths(hdc, stem_chars[i], stem_chars[i], &abcWidths)) { 1437ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int16_t width = abcWidths.abcB; 1438ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (width > 0 && width < min_width) { 1439ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com min_width = width; 1440ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStemV = min_width; 1441ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1442ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1443ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1444ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1445ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // If bit 1 is set, the font may not be embedded in a document. 1446ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // If bit 1 is clear, the font can be embedded. 1447ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // If bit 2 is set, the embedding is read-only. 1448ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (otm.otmfsType & 0x1) { 1449ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fType = SkAdvancedTypefaceMetrics::kNotEmbeddable_Font; 14500e6dc0a320985ffd31f77eed8a41e62132b9ba95ctguil@chromium.org } else if (perGlyphInfo & 14510e6dc0a320985ffd31f77eed8a41e62132b9ba95ctguil@chromium.org SkAdvancedTypefaceMetrics::kHAdvance_PerGlyphInfo) { 14525aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org if (info->fStyle & SkAdvancedTypefaceMetrics::kFixedPitch_Style) { 14535aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org appendRange(&info->fGlyphWidths, 0); 14545aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org info->fGlyphWidths->fAdvance.append(1, &min_width); 14555aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org finishRange(info->fGlyphWidths.get(), 0, 14565aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org SkAdvancedTypefaceMetrics::WidthRange::kDefault); 14575aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org } else { 14585aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org info->fGlyphWidths.reset( 145937ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org getAdvanceData(hdc, 146037ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org glyphCount, 146137ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org glyphIDs, 146237ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org glyphIDsCount, 146337ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org &getWidthAdvance)); 14645aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org } 1465ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1466ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1467ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comError: 1468ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SelectObject(hdc, savefont); 1469ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteObject(designFont); 1470ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteObject(font); 1471ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteDC(hdc); 1472ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1473ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return info; 1474ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1475ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1476a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com//Dummy representation of a Base64 encoded GUID from create_unique_font_name. 1477a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#define BASE64_GUID_ID "XXXXXXXXXXXXXXXXXXXXXXXX" 1478a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com//Length of GUID representation from create_id, including NULL terminator. 1479a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#define BASE64_GUID_ID_LEN SK_ARRAY_COUNT(BASE64_GUID_ID) 1480a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1481a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comSK_COMPILE_ASSERT(BASE64_GUID_ID_LEN < LF_FACESIZE, GUID_longer_than_facesize); 1482a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1483a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 1484a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com NameID 6 Postscript names cannot have the character '/'. 1485a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com It would be easier to hex encode the GUID, but that is 32 bytes, 1486a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com and many systems have issues with names longer than 28 bytes. 1487a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com The following need not be any standard base64 encoding. 1488a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com The encoded value is never decoded. 1489a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com*/ 1490d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.comstatic const char postscript_safe_base64_encode[] = 1491a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com "ABCDEFGHIJKLMNOPQRSTUVWXYZ" 1492a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com "abcdefghijklmnopqrstuvwxyz" 1493a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com "0123456789-_="; 1494a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1495a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 1496a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com Formats a GUID into Base64 and places it into buffer. 1497a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com buffer should have space for at least BASE64_GUID_ID_LEN characters. 1498a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com The string will always be null terminated. 1499a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com XXXXXXXXXXXXXXXXXXXXXXXX0 1500a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 1501a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comstatic void format_guid_b64(const GUID& guid, char* buffer, size_t bufferSize) { 1502a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com SkASSERT(bufferSize >= BASE64_GUID_ID_LEN); 1503a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com size_t written = SkBase64::Encode(&guid, sizeof(guid), buffer, postscript_safe_base64_encode); 1504a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com SkASSERT(written < LF_FACESIZE); 1505a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com buffer[written] = '\0'; 1506a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com} 1507a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1508a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 1509a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com Creates a Base64 encoded GUID and places it into buffer. 1510a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com buffer should have space for at least BASE64_GUID_ID_LEN characters. 1511a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com The string will always be null terminated. 1512a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com XXXXXXXXXXXXXXXXXXXXXXXX0 1513a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 1514a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comstatic HRESULT create_unique_font_name(char* buffer, size_t bufferSize) { 1515a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com GUID guid = {}; 1516a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com if (FAILED(CoCreateGuid(&guid))) { 1517a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return E_UNEXPECTED; 1518a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1519a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com format_guid_b64(guid, buffer, bufferSize); 1520a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1521a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return S_OK; 1522a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com} 1523a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1524a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 1525a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com Introduces a font to GDI. On failure will return NULL. The returned handle 1526a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com should eventually be passed to RemoveFontMemResourceEx. 1527a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com*/ 1528a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comstatic HANDLE activate_font(SkData* fontData) { 1529a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com DWORD numFonts = 0; 1530a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com //AddFontMemResourceEx just copies the data, but does not specify const. 1531a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com HANDLE fontHandle = AddFontMemResourceEx(const_cast<void*>(fontData->data()), 1532a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com fontData->size(), 1533a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 0, 1534a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com &numFonts); 1535a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1536a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com if (fontHandle != NULL && numFonts < 1) { 1537a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com RemoveFontMemResourceEx(fontHandle); 1538a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return NULL; 1539a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1540a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1541a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return fontHandle; 1542a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com} 1543a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1544ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comSkTypeface* SkFontHost::CreateTypefaceFromStream(SkStream* stream) { 1545a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Create a unique and unpredictable font name. 1546a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Avoids collisions and access from CSS. 1547a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com char familyName[BASE64_GUID_ID_LEN]; 1548a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com const int familyNameSize = SK_ARRAY_COUNT(familyName); 1549a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com if (FAILED(create_unique_font_name(familyName, familyNameSize))) { 1550a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return NULL; 1551a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1552d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com 1553a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Change the name of the font. 1554e9bbee397ce96aa6642a42823feb1d7c4a8ffd8bbungeman@google.com SkAutoTUnref<SkData> rewrittenFontData(SkOTUtils::RenameFont(stream, familyName, familyNameSize-1)); 1555e9bbee397ce96aa6642a42823feb1d7c4a8ffd8bbungeman@google.com if (NULL == rewrittenFontData.get()) { 1556a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return NULL; 1557a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1558ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1559a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Register the font with GDI. 1560e9bbee397ce96aa6642a42823feb1d7c4a8ffd8bbungeman@google.com HANDLE fontReference = activate_font(rewrittenFontData.get()); 1561a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com if (NULL == fontReference) { 1562a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return NULL; 1563a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1564a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1565a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Create the typeface. 1566a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com LOGFONT lf; 1567a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com logfont_for_name(familyName, lf); 1568a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1569a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return SkCreateFontMemResourceTypefaceFromLOGFONT(lf, fontReference); 1570ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1571ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1572ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comSkStream* SkFontHost::OpenStream(SkFontID uniqueID) { 1573f4c2622a1a3489988f2d85a81fdc132b17a92bddctguil@chromium.org const DWORD kTTCTag = 1574f4c2622a1a3489988f2d85a81fdc132b17a92bddctguil@chromium.org SkEndian_SwapBE32(SkSetFourByteTag('t', 't', 'c', 'f')); 157559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LOGFONT lf; 157659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com GetLogFontByID(uniqueID, &lf); 1577ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1578ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HDC hdc = ::CreateCompatibleDC(NULL); 157959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com HFONT font = CreateFontIndirect(&lf); 1580ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT savefont = (HFONT)SelectObject(hdc, font); 1581ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1582d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org SkMemoryStream* stream = NULL; 1583d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org DWORD tables[2] = {kTTCTag, 0}; 1584d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org for (int i = 0; i < SK_ARRAY_COUNT(tables); i++) { 1585d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org size_t bufferSize = GetFontData(hdc, tables[i], 0, NULL, 0); 158639698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (bufferSize == GDI_ERROR) { 158739698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com ensure_typeface_accessible(uniqueID); 158839698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com bufferSize = GetFontData(hdc, tables[i], 0, NULL, 0); 158939698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 1590d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org if (bufferSize != GDI_ERROR) { 1591d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org stream = new SkMemoryStream(bufferSize); 1592d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org if (GetFontData(hdc, tables[i], 0, (void*)stream->getMemoryBase(), 1593d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org bufferSize)) { 1594d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org break; 1595d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org } else { 1596d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org delete stream; 1597d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org stream = NULL; 1598d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org } 1599d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org } 1600ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1601ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1602ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SelectObject(hdc, savefont); 1603ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteObject(font); 1604ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteDC(hdc); 1605ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1606ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return stream; 1607ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1608ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1609ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comSkScalerContext* SkFontHost::CreateScalerContext(const SkDescriptor* desc) { 1610ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkNEW_ARGS(SkScalerContext_Windows, (desc)); 1611ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1612ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1613ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com/** Return the closest matching typeface given either an existing family 1614ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com (specified by a typeface in that family) or by a familyName, and a 1615ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com requested style. 161690d812b77ab025d5fd01dab904287f5c5bf56228bungeman@google.com 1) If familyFace is null, use familyName. 161790d812b77ab025d5fd01dab904287f5c5bf56228bungeman@google.com 2) If familyName is null, use familyFace. 1618ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 3) If both are null, return the default font that best matches style 1619ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com This MUST not return NULL. 1620ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com */ 1621ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1622ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comSkTypeface* SkFontHost::CreateTypeface(const SkTypeface* familyFace, 1623ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com const char familyName[], 1624ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkTypeface::Style style) { 162559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LOGFONT lf; 1626ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (NULL == familyFace && NULL == familyName) { 162759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf = get_default_font(); 162859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } else if (familyFace) { 162959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LogFontTypeface* face = (LogFontTypeface*)familyFace; 163059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf = face->fLogFont; 1631ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 1632a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com logfont_for_name(familyName, lf); 1633ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 163459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com setStyle(&lf, style); 163559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com return SkCreateTypefaceFromLOGFONT(lf); 1636ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1637ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1638ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comSkTypeface* SkFontHost::CreateTypefaceFromFile(const char path[]) { 1639515899eb2f6fbcea05b68ff13ff412c20e9e06f4bungeman@google.com SkTypeface* face = NULL; 1640515899eb2f6fbcea05b68ff13ff412c20e9e06f4bungeman@google.com SkAutoTUnref<SkFILEStream> stream(SkNEW_ARGS(SkFILEStream, (path))); 1641515899eb2f6fbcea05b68ff13ff412c20e9e06f4bungeman@google.com 1642515899eb2f6fbcea05b68ff13ff412c20e9e06f4bungeman@google.com if (stream->isValid()) { 1643515899eb2f6fbcea05b68ff13ff412c20e9e06f4bungeman@google.com face = CreateTypefaceFromStream(stream); 1644515899eb2f6fbcea05b68ff13ff412c20e9e06f4bungeman@google.com } 1645515899eb2f6fbcea05b68ff13ff412c20e9e06f4bungeman@google.com return face; 1646ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1647ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1648cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.comvoid SkFontHost::FilterRec(SkScalerContext::Rec* rec, SkTypeface* typeface) { 1649e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com unsigned flagsWeDontSupport = SkScalerContext::kDevKernText_Flag | 1650e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kAutohinting_Flag | 1651e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kEmbeddedBitmapText_Flag | 1652e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kEmbolden_Flag | 1653c84547a8d3cb04f0547db282b34e26abfbe64ec3bungeman@google.com SkScalerContext::kSubpixelPositioning_Flag | 1654e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kLCD_BGROrder_Flag | 1655e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kLCD_Vertical_Flag; 1656e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com rec->fFlags &= ~flagsWeDontSupport; 1657e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com 1658e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkPaint::Hinting h = rec->getHinting(); 1659da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com 1660da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com // I think we can support no-hinting, if we get hires outlines and just 1661da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com // use skia to rasterize into a gray-scale mask... 1662da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com#if 0 1663e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com switch (h) { 1664e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kNo_Hinting: 1665e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kSlight_Hinting: 1666e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com h = SkPaint::kNo_Hinting; 1667e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com break; 1668e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kNormal_Hinting: 1669e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kFull_Hinting: 1670e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com h = SkPaint::kNormal_Hinting; 1671e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com break; 1672e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com default: 16730c00f21fee3f5cfa3aa7e5d46ff94cb8cf340451tomhudson@google.com SkDEBUGFAIL("unknown hinting"); 1674e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com } 1675da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com#else 1676da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com h = SkPaint::kNormal_Hinting; 1677da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com#endif 1678e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com rec->setHinting(h); 1679da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com 16809181aa84aa288d2bc3ab079b6b40a79ac87d8807reed@google.com// turn this off since GDI might turn A8 into BW! Need a bigger fix. 16819181aa84aa288d2bc3ab079b6b40a79ac87d8807reed@google.com#if 0 1682da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com // Disable LCD when rotated, since GDI's output is ugly 1683da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com if (isLCD(*rec) && !isAxisAligned(*rec)) { 1684da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com rec->fMaskFormat = SkMask::kA8_Format; 1685da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com } 16869181aa84aa288d2bc3ab079b6b40a79ac87d8807reed@google.com#endif 1687754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com 1688cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com LogFontTypeface* logfontTypeface = static_cast<LogFontTypeface*>(typeface); 1689cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com if (!logfontTypeface->fCanBeLCD && isLCD(*rec)) { 1690cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com rec->fMaskFormat = SkMask::kA8_Format; 1691cb1bbb375aa4fdd099dc60302ca1712f04607782bungeman@google.com rec->fFlags &= ~SkScalerContext::kGenA8FromLCD_Flag; 1692754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } 1693754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com} 1694