SkFontHost_win.cpp revision e9bbee397ce96aa6642a42823feb1d7c4a8ffd8b
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" 11a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include "SkData.h" 12a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include "SkDescriptor.h" 13a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include "SkFontHost.h" 14a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include "SkOTUtils.h" 15ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkStream.h" 16a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include "SkString.h" 17ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkThread.h" 18ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkTypeface_win.h" 1959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com#include "SkTypefaceCache.h" 20ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkUtils.h" 21ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 22a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include "SkTypes.h" 23a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include <tchar.h> 24a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include <usp10.h> 25a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include <objbase.h> 26ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 276f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com// always packed xxRRGGBB 286f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.comtypedef uint32_t SkGdiRGB; 296f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com 306f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.comtemplate <typename T> T* SkTAddByteOffset(T* ptr, size_t byteOffset) { 316f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com return (T*)((char*)ptr + byteOffset); 326f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com} 336f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com 34a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com// define this in your Makefile or .gyp to enforce AA requests 35a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com// which GDI ignores at small sizes. This flag guarantees AA 36a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com// for rotated text, regardless of GDI's notions. 37a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com//#define SK_ENFORCE_ROTATED_TEXT_AA_ON_WINDOWS 38a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 39ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com// client3d has to undefine this for now 40ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#define CAN_USE_LOGFONT_NAME 41ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 4282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.comstatic bool isLCD(const SkScalerContext::Rec& rec) { 4382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com return SkMask::kLCD16_Format == rec.fMaskFormat || 4482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com SkMask::kLCD32_Format == rec.fMaskFormat; 4582a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com} 4682a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 47a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.comstatic bool bothZero(SkScalar a, SkScalar b) { 48a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com return 0 == a && 0 == b; 49a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com} 50a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 51a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com// returns false if there is any non-90-rotation or skew 52a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.comstatic bool isAxisAligned(const SkScalerContext::Rec& rec) { 53a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com return 0 == rec.fPreSkewX && 54a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com (bothZero(rec.fPost2x2[0][1], rec.fPost2x2[1][0]) || 55a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com bothZero(rec.fPost2x2[0][0], rec.fPost2x2[1][1])); 56a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com} 57a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 58a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.comstatic bool needToRenderWithSkia(const SkScalerContext::Rec& rec) { 59a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com#ifdef SK_ENFORCE_ROTATED_TEXT_AA_ON_WINDOWS 60a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // What we really want to catch is when GDI will ignore the AA request and give 61a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // us BW instead. Smallish rotated text is one heuristic, so this code is just 62a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // an approximation. We shouldn't need to do this for larger sizes, but at those 63a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // sizes, the quality difference gets less and less between our general 64a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // scanconverter and GDI's. 65a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com if (SkMask::kA8_Format == rec.fMaskFormat && !isAxisAligned(rec)) { 66a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com return true; 67a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com } 68a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com#endif 69a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // false means allow GDI to generate the bits 70a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com return false; 71a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com} 72a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 73ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comusing namespace skia_advanced_typeface_metrics_utils; 74ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 75ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic const uint16_t BUFFERSIZE = (16384 - 32); 76ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic uint8_t glyphbuf[BUFFERSIZE]; 77ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 78ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com/** 795aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org * Since LOGFONT wants its textsize as an int, and we support fractional sizes, 80ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com * and since we have a cache of LOGFONTs for our tyepfaces, we always set the 81ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com * lfHeight to a canonical size, and then we use the 2x2 matrix to achieve the 82ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com * actual requested size. 83ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com */ 84ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic const int gCanonicalTextSize = 64; 85ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 86ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic void make_canonical(LOGFONT* lf) { 875aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org lf->lfHeight = -gCanonicalTextSize; 8859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf->lfQuality = CLEARTYPE_QUALITY;//PROOF_QUALITY; 8959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf->lfCharSet = DEFAULT_CHARSET; 9082a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com// lf->lfClipPrecision = 64; 9159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com} 9259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 9390d812b77ab025d5fd01dab904287f5c5bf56228bungeman@google.comstatic SkTypeface::Style get_style(const LOGFONT& lf) { 9459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com unsigned style = 0; 9559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com if (lf.lfWeight >= FW_BOLD) { 9659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com style |= SkTypeface::kBold; 9759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } 9859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com if (lf.lfItalic) { 9959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com style |= SkTypeface::kItalic; 10059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } 10190d812b77ab025d5fd01dab904287f5c5bf56228bungeman@google.com return static_cast<SkTypeface::Style>(style); 10259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com} 10359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 10459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.comstatic void setStyle(LOGFONT* lf, SkTypeface::Style style) { 10559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf->lfWeight = (style & SkTypeface::kBold) != 0 ? FW_BOLD : FW_NORMAL ; 10659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf->lfItalic = ((style & SkTypeface::kItalic) != 0); 107ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 108ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 109ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic inline FIXED SkFixedToFIXED(SkFixed x) { 110ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return *(FIXED*)(&x); 111ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 112a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.comstatic inline SkFixed SkFIXEDToFixed(FIXED x) { 113a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com return *(SkFixed*)(&x); 114a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com} 115ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 116ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic inline FIXED SkScalarToFIXED(SkScalar x) { 117ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkFixedToFIXED(SkScalarToFixed(x)); 118ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 119ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 120a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.comstatic unsigned calculateOutlineGlyphCount(HDC hdc) { 121ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // The 'maxp' table stores the number of glyphs at offset 4, in 2 bytes. 122f4c2622a1a3489988f2d85a81fdc132b17a92bddctguil@chromium.org const DWORD maxpTag = 123f4c2622a1a3489988f2d85a81fdc132b17a92bddctguil@chromium.org SkEndian_SwapBE32(SkSetFourByteTag('m', 'a', 'x', 'p')); 124ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com uint16_t glyphs; 125ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (GetFontData(hdc, maxpTag, 4, &glyphs, sizeof(glyphs)) != GDI_ERROR) { 126ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkEndian_SwapBE16(glyphs); 127ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1285aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org 129ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Binary search for glyph count. 130ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com static const MAT2 mat2 = {{0, 1}, {0, 0}, {0, 0}, {0, 1}}; 131ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int32_t max = SK_MaxU16 + 1; 132ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int32_t min = 0; 133ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com GLYPHMETRICS gm; 134ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com while (min < max) { 135ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int32_t mid = min + ((max - min) / 2); 136ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (GetGlyphOutlineW(hdc, mid, GGO_METRICS | GGO_GLYPH_INDEX, &gm, 0, 137ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com NULL, &mat2) == GDI_ERROR) { 138ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com max = mid; 139ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 140ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com min = mid + 1; 141ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 142ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 143ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(min == max); 144ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return min; 145ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 146ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 147ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comclass LogFontTypeface : public SkTypeface { 148ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.compublic: 14959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LogFontTypeface(SkTypeface::Style style, SkFontID fontID, const LOGFONT& lf) : 15059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com SkTypeface(style, fontID, false), fLogFont(lf) {} 151ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 15259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LOGFONT fLogFont; 153ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 15459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com static LogFontTypeface* Create(const LOGFONT& lf) { 15590d812b77ab025d5fd01dab904287f5c5bf56228bungeman@google.com SkTypeface::Style style = get_style(lf); 15659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com SkFontID fontID = SkTypefaceCache::NewFontID(); 15759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com return new LogFontTypeface(style, fontID, lf); 158ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 159ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com}; 160ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 161a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comclass FontMemResourceTypeface : public LogFontTypeface { 162a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.compublic: 163a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com /** 164a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com * Takes ownership of fontMemResource. 165a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 166a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com FontMemResourceTypeface(SkTypeface::Style style, SkFontID fontID, const LOGFONT& lf, HANDLE fontMemResource) : 167a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com LogFontTypeface(style, fontID, lf), fFontMemResource(fontMemResource) {} 168a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 169a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com HANDLE fFontMemResource; 170a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 171a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com /** 172a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com * The created FontMemResourceTypeface takes ownership of fontMemResource. 173a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 174a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com static FontMemResourceTypeface* Create(const LOGFONT& lf, HANDLE fontMemResource) { 175a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com SkTypeface::Style style = get_style(lf); 176a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com SkFontID fontID = SkTypefaceCache::NewFontID(); 177a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return new FontMemResourceTypeface(style, fontID, lf, fontMemResource); 178a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 179a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 180a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comprotected: 181a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com virtual void weak_dispose() const SK_OVERRIDE { 182a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com RemoveFontMemResourceEx(fFontMemResource); 183a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com //SkTypefaceCache::Remove(this); 184a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com INHERITED::weak_dispose(); 185a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 186a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 187a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comprivate: 188a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com typedef LogFontTypeface INHERITED; 189a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com}; 190a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 191ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic const LOGFONT& get_default_font() { 192ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com static LOGFONT gDefaultFont; 193ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return gDefaultFont; 194ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 195ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 19659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.comstatic bool FindByLogFont(SkTypeface* face, SkTypeface::Style requestedStyle, void* ctx) { 197a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com LogFontTypeface* lface = static_cast<LogFontTypeface*>(face); 19859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com const LOGFONT* lf = reinterpret_cast<const LOGFONT*>(ctx); 199ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 200a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return lface && 201a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com get_style(lface->fLogFont) == requestedStyle && 20259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com !memcmp(&lface->fLogFont, lf, sizeof(LOGFONT)); 20359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com} 20459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 20559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com/** 20659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com * This guy is public. It first searches the cache, and if a match is not found, 20759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com * it creates a new face. 20859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com */ 20959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.comSkTypeface* SkCreateTypefaceFromLOGFONT(const LOGFONT& origLF) { 21059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LOGFONT lf = origLF; 21159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com make_canonical(&lf); 212ee51d1a6e43615ae640410013c36d2d9873e6aa5bungeman@google.com SkTypeface* face = SkTypefaceCache::FindByProcAndRef(FindByLogFont, &lf); 213ee51d1a6e43615ae640410013c36d2d9873e6aa5bungeman@google.com if (NULL == face) { 21459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com face = LogFontTypeface::Create(lf); 21590d812b77ab025d5fd01dab904287f5c5bf56228bungeman@google.com SkTypefaceCache::Add(face, get_style(lf)); 21659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } 21759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com return face; 218ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 219ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 220db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com/** 221a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com * The created SkTypeface takes ownership of fontMemResource. 222a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 223a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comSkTypeface* SkCreateFontMemResourceTypefaceFromLOGFONT(const LOGFONT& origLF, HANDLE fontMemResource) { 224a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com LOGFONT lf = origLF; 225a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com make_canonical(&lf); 226a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com FontMemResourceTypeface* face = FontMemResourceTypeface::Create(lf, fontMemResource); 227a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com SkTypefaceCache::Add(face, get_style(lf), false); 228a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return face; 229a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com} 230a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 231a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 232db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com * This guy is public 233db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com */ 234db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.comvoid SkLOGFONTFromTypeface(const SkTypeface* face, LOGFONT* lf) { 235db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com if (NULL == face) { 236db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com *lf = get_default_font(); 237db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com } else { 238a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com *lf = static_cast<const LogFontTypeface*>(face)->fLogFont; 239db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com } 240db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com} 241db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com 2427d26c590f6bc431a5ecf5c25619b64d058613a4dreed@google.comSkFontID SkFontHost::NextLogicalFont(SkFontID currFontID, SkFontID origFontID) { 243ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Zero means that we don't have any fallback fonts for this fontID. 244ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // This function is implemented on Android, but doesn't have much 245ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // meaning here. 246ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return 0; 247ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 248ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 24939698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.comstatic void ensure_typeface_accessible(SkFontID fontID) { 250a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com LogFontTypeface* face = static_cast<LogFontTypeface*>(SkTypefaceCache::FindByID(fontID)); 251ee51d1a6e43615ae640410013c36d2d9873e6aa5bungeman@google.com if (face) { 252ee51d1a6e43615ae640410013c36d2d9873e6aa5bungeman@google.com SkFontHost::EnsureTypefaceAccessible(*face); 253ee51d1a6e43615ae640410013c36d2d9873e6aa5bungeman@google.com } 25439698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com} 25539698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com 25659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.comstatic void GetLogFontByID(SkFontID fontID, LOGFONT* lf) { 257a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com LogFontTypeface* face = static_cast<LogFontTypeface*>(SkTypefaceCache::FindByID(fontID)); 25859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com if (face) { 25959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com *lf = face->fLogFont; 26059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } else { 26159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com sk_bzero(lf, sizeof(LOGFONT)); 26259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } 26359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com} 26459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 2656744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// Construct Glyph to Unicode table. 2666744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// Unicode code points that require conjugate pairs in utf16 are not 2676744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// supported. 2686744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// TODO(arthurhsu): Add support for conjugate pairs. It looks like that may 2696744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// require parsing the TTF cmap table (platform 4, encoding 12) directly instead 2706744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// of calling GetFontUnicodeRange(). 2716744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.orgstatic void populate_glyph_to_unicode(HDC fontHdc, const unsigned glyphCount, 2726744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkTDArray<SkUnichar>* glyphToUnicode) { 2736744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org DWORD glyphSetBufferSize = GetFontUnicodeRanges(fontHdc, NULL); 2746744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org if (!glyphSetBufferSize) { 2756744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org return; 2766744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 2776744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 2786744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkAutoTDeleteArray<BYTE> glyphSetBuffer(new BYTE[glyphSetBufferSize]); 2796744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org GLYPHSET* glyphSet = 2806744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org reinterpret_cast<LPGLYPHSET>(glyphSetBuffer.get()); 2816744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org if (GetFontUnicodeRanges(fontHdc, glyphSet) != glyphSetBufferSize) { 2826744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org return; 2836744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 2846744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 2856744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org glyphToUnicode->setCount(glyphCount); 2866744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org memset(glyphToUnicode->begin(), 0, glyphCount * sizeof(SkUnichar)); 2876744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org for (DWORD i = 0; i < glyphSet->cRanges; ++i) { 2886744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // There is no guarantee that within a Unicode range, the corresponding 2896744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // glyph id in a font file are continuous. So, even if we have ranges, 2906744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // we can't just use the first and last entry of the range to compute 2916744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // result. We need to enumerate them one by one. 2926744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org int count = glyphSet->ranges[i].cGlyphs; 2936744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkAutoTArray<WCHAR> chars(count + 1); 2946744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org chars[count] = 0; // termintate string 2956744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkAutoTArray<WORD> glyph(count); 2966744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org for (USHORT j = 0; j < count; ++j) { 2976744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org chars[j] = glyphSet->ranges[i].wcLow + j; 2986744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 2996744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org GetGlyphIndicesW(fontHdc, chars.get(), count, glyph.get(), 3006744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org GGI_MARK_NONEXISTING_GLYPHS); 3016744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // If the glyph ID is valid, and the glyph is not mapped, then we will 3026744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // fill in the char id into the vector. If the glyph is mapped already, 3036744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // skip it. 3046744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // TODO(arthurhsu): better improve this. e.g. Get all used char ids from 3056744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // font cache, then generate this mapping table from there. It's 3066744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // unlikely to have collisions since glyph reuse happens mostly for 3076744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // different Unicode pages. 3086744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org for (USHORT j = 0; j < count; ++j) { 3096744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org if (glyph[j] != 0xffff && glyph[j] < glyphCount && 3106744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org (*glyphToUnicode)[glyph[j]] == 0) { 3116744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org (*glyphToUnicode)[glyph[j]] = chars[j]; 3126744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 3136744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 3146744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 3156744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org} 3166744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 31799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com////////////////////////////////////////////////////////////////////////////////////// 31899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 31999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.comstatic int alignTo32(int n) { 32099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com return (n + 31) & ~31; 32199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com} 32299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 32399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.comstruct MyBitmapInfo : public BITMAPINFO { 32499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com RGBQUAD fMoreSpaceForColors[1]; 32599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com}; 32699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 32799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.comclass HDCOffscreen { 32899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.compublic: 32999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HDCOffscreen() { 33099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fFont = 0; 33199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fDC = 0; 33299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fBM = 0; 33399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fBits = NULL; 33499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fWidth = fHeight = 0; 33599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fIsBW = false; 336754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com fColor = kInvalid_Color; 33799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 33899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 33999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com ~HDCOffscreen() { 34099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (fDC) { 34199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com DeleteDC(fDC); 34299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 34399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (fBM) { 34499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com DeleteObject(fBM); 34599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 34699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 34799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 34899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com void init(HFONT font, const XFORM& xform) { 34999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fFont = font; 35099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fXform = xform; 35199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 35299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 3536f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com const void* draw(const SkGlyph&, bool isBW, SkGdiRGB fgColor, 354754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com size_t* srcRBPtr); 35599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 35699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.comprivate: 35799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HDC fDC; 35899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HBITMAP fBM; 35999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HFONT fFont; 36099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com XFORM fXform; 36199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com void* fBits; // points into fBM 362754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com COLORREF fColor; 36399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com int fWidth; 36499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com int fHeight; 36599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com bool fIsBW; 366754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com 367754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com enum { 368754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com // will always trigger us to reset the color, since we 3696f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com // should only store 0 or 0x00FFFFFF or gray (0x007F7F7F) 370754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com kInvalid_Color = 12345 371754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com }; 37299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com}; 37399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 374754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.comconst void* HDCOffscreen::draw(const SkGlyph& glyph, bool isBW, 3756f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com SkGdiRGB fgColor, size_t* srcRBPtr) { 37699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (0 == fDC) { 37799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fDC = CreateCompatibleDC(0); 37899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (0 == fDC) { 37999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com return NULL; 38099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 38199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SetGraphicsMode(fDC, GM_ADVANCED); 38299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SetBkMode(fDC, TRANSPARENT); 38399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SetTextAlign(fDC, TA_LEFT | TA_BASELINE); 38499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SelectObject(fDC, fFont); 385754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com fColor = kInvalid_Color; 38699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 38799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 38899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (fBM && (fIsBW != isBW || fWidth < glyph.fWidth || fHeight < glyph.fHeight)) { 38999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com DeleteObject(fBM); 39099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fBM = 0; 39199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 392754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com fIsBW = isBW; 39399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 3946f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com COLORREF color = fgColor; 3956f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com if (fIsBW) { 396754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com color = 0xFFFFFF; 397754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } 398754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com if (fColor != color) { 399754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com fColor = color; 400754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com COLORREF prev = SetTextColor(fDC, color); 401754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com SkASSERT(prev != CLR_INVALID); 40299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 403754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com 40499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fWidth = SkMax32(fWidth, glyph.fWidth); 40599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fHeight = SkMax32(fHeight, glyph.fHeight); 40699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 40799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com int biWidth = isBW ? alignTo32(fWidth) : fWidth; 40899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 40999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (0 == fBM) { 41099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com MyBitmapInfo info; 41199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com sk_bzero(&info, sizeof(info)); 41299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (isBW) { 41399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com RGBQUAD blackQuad = { 0, 0, 0, 0 }; 41499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com RGBQUAD whiteQuad = { 0xFF, 0xFF, 0xFF, 0 }; 41599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiColors[0] = blackQuad; 41699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiColors[1] = whiteQuad; 41799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 41899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biSize = sizeof(info.bmiHeader); 41999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biWidth = biWidth; 42099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biHeight = fHeight; 42199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biPlanes = 1; 42299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biBitCount = isBW ? 1 : 32; 42399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biCompression = BI_RGB; 42499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (isBW) { 42599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biClrUsed = 2; 42699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 42799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fBM = CreateDIBSection(fDC, &info, DIB_RGB_COLORS, &fBits, 0, 0); 42899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (0 == fBM) { 42999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com return NULL; 43099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 43199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SelectObject(fDC, fBM); 43299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 43399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 43499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com // erase 43599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com size_t srcRB = isBW ? (biWidth >> 3) : (fWidth << 2); 43699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com size_t size = fHeight * srcRB; 4376f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com unsigned bg = (0 == color) ? 0xFF : 0; 4386f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com memset(fBits, bg, size); 43999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 44099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com XFORM xform = fXform; 44199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com xform.eDx = (float)-glyph.fLeft; 44299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com xform.eDy = (float)-glyph.fTop; 44399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SetWorldTransform(fDC, &xform); 44499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 44599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com uint16_t glyphID = glyph.getGlyphID(); 44639698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com BOOL ret = ExtTextOutW(fDC, 0, 0, ETO_GLYPH_INDEX, NULL, reinterpret_cast<LPCWSTR>(&glyphID), 1, NULL); 44799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com GdiFlush(); 44839698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (0 == ret) { 44939698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com return NULL; 45039698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 45199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com *srcRBPtr = srcRB; 45299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com // offset to the start of the image 45399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com return (const char*)fBits + (fHeight - glyph.fHeight) * srcRB; 45499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com} 45599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 45699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com////////////////////////////////////////////////////////////////////////////////////// 45759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 458ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comclass SkScalerContext_Windows : public SkScalerContext { 459ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.compublic: 460ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkScalerContext_Windows(const SkDescriptor* desc); 461ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com virtual ~SkScalerContext_Windows(); 462ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 463ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comprotected: 464ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com virtual unsigned generateGlyphCount(); 465ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com virtual uint16_t generateCharToGlyph(SkUnichar uni); 466ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com virtual void generateAdvance(SkGlyph* glyph); 467ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com virtual void generateMetrics(SkGlyph* glyph); 468ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com virtual void generateImage(const SkGlyph& glyph); 469ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com virtual void generatePath(const SkGlyph& glyph, SkPath* path); 470ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com virtual void generateFontMetrics(SkPaint::FontMetrics* mX, SkPaint::FontMetrics* mY); 47199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 472ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comprivate: 47399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HDCOffscreen fOffscreen; 4745aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org SkScalar fScale; // to get from canonical size to real size 475ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com MAT2 fMat22; 476ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com XFORM fXform; 477ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HDC fDDC; 478ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT fSavefont; 479ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT fFont; 480ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SCRIPT_CACHE fSC; 481ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int fGlyphCount; 4821dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 4831dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com HFONT fHiResFont; 4841dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com MAT2 fMat22Identity; 4851dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com SkMatrix fHiResMatrix; 486a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com enum Type { 487a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com kTrueType_Type, kBitmap_Type, 488a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } fType; 489a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com TEXTMETRIC fTM; 490ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com}; 491ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 492ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic float mul2float(SkScalar a, SkScalar b) { 493ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkScalarToFloat(SkScalarMul(a, b)); 494ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 495ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 496ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic FIXED float2FIXED(float x) { 497ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkFixedToFIXED(SkFloatToFixed(x)); 498ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 499ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 5001771cbf43d9a1334e3d870c635b4215bb888dd98digit@google.comSK_DECLARE_STATIC_MUTEX(gFTMutex); 50159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 5021dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com#define HIRES_TEXTSIZE 2048 5031dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com#define HIRES_SHIFT 11 5041dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.comstatic inline SkFixed HiResToFixed(int value) { 5051dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com return value << (16 - HIRES_SHIFT); 5061dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com} 5071dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 5081dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.comstatic bool needHiResMetrics(const SkScalar mat[2][2]) { 5091dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com return mat[1][0] || mat[0][1]; 5101dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com} 5111dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 51282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.comstatic BYTE compute_quality(const SkScalerContext::Rec& rec) { 51382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com switch (rec.fMaskFormat) { 51482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com case SkMask::kBW_Format: 51582a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com return NONANTIALIASED_QUALITY; 51682a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com case SkMask::kLCD16_Format: 51782a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com case SkMask::kLCD32_Format: 51882a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com return CLEARTYPE_QUALITY; 51982a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com default: 5208351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com if (rec.fFlags & SkScalerContext::kGenA8FromLCD_Flag) { 5218351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com return CLEARTYPE_QUALITY; 5228351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com } else { 5238351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com return ANTIALIASED_QUALITY; 5248351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com } 52582a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com } 52682a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com} 52782a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 528ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comSkScalerContext_Windows::SkScalerContext_Windows(const SkDescriptor* desc) 529ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com : SkScalerContext(desc), fDDC(0), fFont(0), fSavefont(0), fSC(0) 530ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com , fGlyphCount(-1) { 531ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkAutoMutexAcquire ac(gFTMutex); 532ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 533ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fDDC = ::CreateCompatibleDC(NULL); 5341dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com SetGraphicsMode(fDDC, GM_ADVANCED); 535ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SetBkMode(fDDC, TRANSPARENT); 536ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 537ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Scaling by the DPI is inconsistent with how Skia draws elsewhere 538ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com //SkScalar height = -(fRec.fTextSize * GetDeviceCaps(ddc, LOGPIXELSY) / 72); 53959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LOGFONT lf; 54059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com GetLogFontByID(fRec.fFontID, &lf); 541ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com lf.lfHeight = -gCanonicalTextSize; 54282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com lf.lfQuality = compute_quality(fRec); 543ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fFont = CreateFontIndirect(&lf); 5441dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 5451dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com // if we're rotated, or want fractional widths, create a hires font 5461dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com fHiResFont = 0; 547c84547a8d3cb04f0547db282b34e26abfbe64ec3bungeman@google.com if (needHiResMetrics(fRec.fPost2x2)) { 5481dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com lf.lfHeight = -HIRES_TEXTSIZE; 5491dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com fHiResFont = CreateFontIndirect(&lf); 5501dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 5511dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com fMat22Identity.eM11 = fMat22Identity.eM22 = SkFixedToFIXED(SK_Fixed1); 5521dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com fMat22Identity.eM12 = fMat22Identity.eM21 = SkFixedToFIXED(0); 5531dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 5541dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com // construct a matrix to go from HIRES logical units to our device units 5551dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com fRec.getSingleMatrix(&fHiResMatrix); 5561dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com SkScalar scale = SkScalarInvert(SkIntToScalar(HIRES_TEXTSIZE)); 5571dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com fHiResMatrix.preScale(scale, scale); 5581dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com } 559ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fSavefont = (HFONT)SelectObject(fDDC, fFont); 560a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 561a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (0 == GetTextMetrics(fDDC, &fTM)) { 562a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com ensure_typeface_accessible(fRec.fFontID); 563a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (0 == GetTextMetrics(fDDC, &fTM)) { 564a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fTM.tmPitchAndFamily = TMPF_TRUETYPE; 565a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 566a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 567a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com // Used a logfont on a memory context, should never get a device font. 56890b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com // Therefore all TMPF_DEVICE will be PostScript fonts. 56990b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com 57090b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com // If TMPF_VECTOR is set, one of TMPF_TRUETYPE or TMPF_DEVICE must be set, 57190b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com // otherwise we have a vector FON, which we don't support. 57290b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com // This was determined by testing with Type1 PFM/PFB and OpenTypeCFF OTF, 57390b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com // as well as looking at Wine bugs and sources. 57490b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com SkASSERT(!(fTM.tmPitchAndFamily & TMPF_VECTOR) || 57590b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com (fTM.tmPitchAndFamily & (TMPF_TRUETYPE | TMPF_DEVICE))); 57690b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com 57790b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com if (fTM.tmPitchAndFamily & TMPF_VECTOR) { 578a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com // Truetype or PostScript. 579a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com // Stroked FON also gets here (TMPF_VECTOR), but we don't handle it. 580a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fType = SkScalerContext_Windows::kTrueType_Type; 581a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fScale = fRec.fTextSize / gCanonicalTextSize; 582a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 583a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fXform.eM11 = mul2float(fScale, fRec.fPost2x2[0][0]); 584a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fXform.eM12 = mul2float(fScale, fRec.fPost2x2[1][0]); 585a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fXform.eM21 = mul2float(fScale, fRec.fPost2x2[0][1]); 586a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fXform.eM22 = mul2float(fScale, fRec.fPost2x2[1][1]); 587a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fXform.eDx = 0; 588a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fXform.eDy = 0; 589a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 590a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fMat22.eM11 = float2FIXED(fXform.eM11); 591a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fMat22.eM12 = float2FIXED(fXform.eM12); 592a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fMat22.eM21 = float2FIXED(-fXform.eM21); 593a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fMat22.eM22 = float2FIXED(-fXform.eM22); 594a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 595a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (needToRenderWithSkia(fRec)) { 596a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com this->forceGenerateImageFromPath(); 597a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 598a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 599a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } else { 600a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com // Assume bitmap 601a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fType = SkScalerContext_Windows::kBitmap_Type; 602a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fScale = SK_Scalar1; 603a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 604a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fXform.eM11 = 1.0f; 605a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fXform.eM12 = 0.0f; 606a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fXform.eM21 = 0.0f; 607a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fXform.eM22 = 1.0f; 608a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fXform.eDx = 0.0f; 609a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fXform.eDy = 0.0f; 610a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 611a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fMat22.eM11 = SkScalarToFIXED(fRec.fPost2x2[0][0]); 612a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fMat22.eM12 = SkScalarToFIXED(fRec.fPost2x2[1][0]); 613a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fMat22.eM21 = SkScalarToFIXED(-fRec.fPost2x2[0][1]); 614a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fMat22.eM22 = SkScalarToFIXED(-fRec.fPost2x2[1][1]); 615a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 616a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com lf.lfHeight = -SkScalarCeilToInt(fRec.fTextSize); 617a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com HFONT bitmapFont = CreateFontIndirect(&lf); 618a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com SelectObject(fDDC, bitmapFont); 619a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com ::DeleteObject(fFont); 620a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fFont = bitmapFont; 621a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 622a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (0 == GetTextMetrics(fDDC, &fTM)) { 623a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com ensure_typeface_accessible(fRec.fFontID); 624a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com //if the following fails, we'll just draw at gCanonicalTextSize. 625a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com GetTextMetrics(fDDC, &fTM); 626a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 627a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com } 62899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 62999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fOffscreen.init(fFont, fXform); 630ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 631ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 632ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comSkScalerContext_Windows::~SkScalerContext_Windows() { 633ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fDDC) { 634ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::SelectObject(fDDC, fSavefont); 635ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::DeleteDC(fDDC); 636ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 637ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fFont) { 638ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::DeleteObject(fFont); 639ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 6401dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com if (fHiResFont) { 6411dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com ::DeleteObject(fHiResFont); 6421dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com } 643ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fSC) { 644ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::ScriptFreeCache(&fSC); 645ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 646ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 647ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 648ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comunsigned SkScalerContext_Windows::generateGlyphCount() { 649ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fGlyphCount < 0) { 650a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (fType == SkScalerContext_Windows::kBitmap_Type) { 651a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com return fTM.tmLastChar; 652a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 653a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fGlyphCount = calculateOutlineGlyphCount(fDDC); 654ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 655ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return fGlyphCount; 656ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 657ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 658ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comuint16_t SkScalerContext_Windows::generateCharToGlyph(SkUnichar uni) { 659ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com uint16_t index = 0; 660ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com WCHAR c[2]; 661ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // TODO(ctguil): Support characters that generate more than one glyph. 662ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (SkUTF16_FromUnichar(uni, (uint16_t*)c) == 1) { 663ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Type1 fonts fail with uniscribe API. Use GetGlyphIndices for plane 0. 664ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkAssertResult(GetGlyphIndicesW(fDDC, c, 1, &index, 0)); 665ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 666ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Use uniscribe to detemine glyph index for non-BMP characters. 667ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Need to add extra item to SCRIPT_ITEM to work around a bug in older 668ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // windows versions. https://bugzilla.mozilla.org/show_bug.cgi?id=366643 669ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SCRIPT_ITEM si[2 + 1]; 670ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int items; 671ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkAssertResult( 672ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SUCCEEDED(ScriptItemize(c, 2, 2, NULL, NULL, si, &items))); 673ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 674ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com WORD log[2]; 675ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SCRIPT_VISATTR vsa; 676ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int glyphs; 677ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkAssertResult(SUCCEEDED(ScriptShape( 678ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fDDC, &fSC, c, 2, 1, &si[0].a, &index, log, &vsa, &glyphs))); 679ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 680ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return index; 681ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 682ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 683ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comvoid SkScalerContext_Windows::generateAdvance(SkGlyph* glyph) { 684ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com this->generateMetrics(glyph); 685ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 686ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 687ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comvoid SkScalerContext_Windows::generateMetrics(SkGlyph* glyph) { 688ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 689ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(fDDC); 690ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 691a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (fType == SkScalerContext_Windows::kBitmap_Type) { 692a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com SIZE size; 693a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com WORD glyphs = glyph->getGlyphID(0); 694a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (0 == GetTextExtentPointI(fDDC, &glyphs, 1, &size)) { 695a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fWidth = SkToS16(fTM.tmMaxCharWidth); 696a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } else { 697a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fWidth = SkToS16(size.cx); 698a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 699a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fHeight = SkToS16(size.cy); 700a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 701a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fTop = SkToS16(-fTM.tmAscent); 702a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fLeft = SkToS16(0); 703a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fAdvanceX = SkIntToFixed(glyph->fWidth); 704a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fAdvanceY = 0; 705a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 706a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com //Apply matrix to values. 707a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fAdvanceY = SkFixedMul(SkFIXEDToFixed(fMat22.eM21), glyph->fAdvanceX); 708a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fAdvanceX = SkFixedMul(SkFIXEDToFixed(fMat22.eM11), glyph->fAdvanceX); 709a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 710a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com return; 711a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 712a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 713ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com GLYPHMETRICS gm; 7141dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com sk_bzero(&gm, sizeof(gm)); 715ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 716ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com glyph->fRsbDelta = 0; 717ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com glyph->fLsbDelta = 0; 718ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 719ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Note: need to use GGO_GRAY8_BITMAP instead of GGO_METRICS because GGO_METRICS returns a smaller 720ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // BlackBlox; we need the bigger one in case we need the image. fAdvance is the same. 721ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com uint32_t ret = GetGlyphOutlineW(fDDC, glyph->getGlyphID(0), GGO_GRAY8_BITMAP | GGO_GLYPH_INDEX, &gm, 0, NULL, &fMat22); 72239698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (GDI_ERROR == ret) { 72339698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com ensure_typeface_accessible(fRec.fFontID); 72439698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com ret = GetGlyphOutlineW(fDDC, glyph->getGlyphID(0), GGO_GRAY8_BITMAP | GGO_GLYPH_INDEX, &gm, 0, NULL, &fMat22); 72539698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 726ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 727ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (GDI_ERROR != ret) { 728ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (ret == 0) { 729ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // for white space, ret is zero and gmBlackBoxX, gmBlackBoxY are 1 incorrectly! 730ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com gm.gmBlackBoxX = gm.gmBlackBoxY = 0; 731ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 732ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com glyph->fWidth = gm.gmBlackBoxX; 733ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com glyph->fHeight = gm.gmBlackBoxY; 734ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com glyph->fTop = SkToS16(gm.gmptGlyphOrigin.y - gm.gmBlackBoxY); 735ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com glyph->fLeft = SkToS16(gm.gmptGlyphOrigin.x); 736ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com glyph->fAdvanceX = SkIntToFixed(gm.gmCellIncX); 737ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com glyph->fAdvanceY = -SkIntToFixed(gm.gmCellIncY); 738ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 739f8cead5e08fe3298ba09da5a15c2d835747c567dreed@google.com // we outset in all dimensions, since the image may bleed outside 740ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // of the computed bounds returned by GetGlyphOutline. 741ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // This was deduced by trial and error for small text (e.g. 8pt), so there 742ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // maybe a more precise way to make this adjustment... 743f8cead5e08fe3298ba09da5a15c2d835747c567dreed@google.com // 744f8cead5e08fe3298ba09da5a15c2d835747c567dreed@google.com // This test shows us clipping the tops of some of the CJK fonts unless we 745f8cead5e08fe3298ba09da5a15c2d835747c567dreed@google.com // increase the top of the box by 2, hence the height by 4. This seems to 746f8cead5e08fe3298ba09da5a15c2d835747c567dreed@google.com // correspond to an embedded bitmap font, but not sure. 747f8cead5e08fe3298ba09da5a15c2d835747c567dreed@google.com // LayoutTests/fast/text/backslash-to-yen-sign-euc.html 748f8cead5e08fe3298ba09da5a15c2d835747c567dreed@google.com // 7495e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com if (glyph->fWidth) { // don't outset an empty glyph 7505e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com glyph->fWidth += 4; 7515e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com glyph->fHeight += 4; 7525e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com glyph->fTop -= 2; 7535e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com glyph->fLeft -= 2; 7545e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 7551dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 7561dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com if (fHiResFont) { 7571dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com SelectObject(fDDC, fHiResFont); 7581dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com sk_bzero(&gm, sizeof(gm)); 7591dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com ret = GetGlyphOutlineW(fDDC, glyph->getGlyphID(0), GGO_METRICS | GGO_GLYPH_INDEX, &gm, 0, NULL, &fMat22Identity); 7601dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com if (GDI_ERROR != ret) { 7611dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com SkPoint advance; 7621dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com fHiResMatrix.mapXY(SkIntToScalar(gm.gmCellIncX), SkIntToScalar(gm.gmCellIncY), &advance); 7631dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com glyph->fAdvanceX = SkScalarToFixed(advance.fX); 7641dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com glyph->fAdvanceY = SkScalarToFixed(advance.fY); 7651dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com } 7661dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com SelectObject(fDDC, fFont); 7671dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com } 768ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 769a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->zeroMetrics(); 770ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 771ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 772ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 773ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comvoid SkScalerContext_Windows::generateFontMetrics(SkPaint::FontMetrics* mx, SkPaint::FontMetrics* my) { 774ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com// Note: This code was borrowed from generateLineHeight, which has a note 775ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com// stating that it may be incorrect. 776ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (!(mx || my)) 777ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return; 778ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 779ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(fDDC); 780ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 781a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (fType == SkScalerContext_Windows::kBitmap_Type) { 782a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (mx) { 783a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com mx->fTop = SkIntToScalar(-fTM.tmAscent); 784a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com mx->fAscent = SkIntToScalar(-fTM.tmAscent); 785a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com mx->fDescent = -SkIntToScalar(fTM.tmDescent); 786a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com mx->fBottom = SkIntToScalar(fTM.tmDescent); 787a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com mx->fLeading = SkIntToScalar(fTM.tmInternalLeading 788a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com + fTM.tmExternalLeading); 789a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 790a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 791a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (my) { 792a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com my->fTop = SkIntToScalar(-fTM.tmAscent); 793a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com my->fAscent = SkIntToScalar(-fTM.tmAscent); 794a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com my->fDescent = SkIntToScalar(-fTM.tmDescent); 795a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com my->fBottom = SkIntToScalar(fTM.tmDescent); 796a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com my->fLeading = SkIntToScalar(fTM.tmInternalLeading 797a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com + fTM.tmExternalLeading); 798a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 799a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com return; 800a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 801a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 802ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com OUTLINETEXTMETRIC otm; 803ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 804ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com uint32_t ret = GetOutlineTextMetrics(fDDC, sizeof(otm), &otm); 80539698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (GDI_ERROR == ret) { 80639698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com ensure_typeface_accessible(fRec.fFontID); 80739698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com ret = GetOutlineTextMetrics(fDDC, sizeof(otm), &otm); 80839698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 809ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (sizeof(otm) != ret) { 810a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com return; 811ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 812ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 813ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (mx) { 814ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com mx->fTop = -fScale * otm.otmTextMetrics.tmAscent; 8155aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org mx->fAscent = -fScale * otm.otmAscent; 8165aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org mx->fDescent = -fScale * otm.otmDescent; 8175aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org mx->fBottom = fScale * otm.otmTextMetrics.tmDescent; 8185aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org mx->fLeading = fScale * (otm.otmTextMetrics.tmInternalLeading 8195aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org + otm.otmTextMetrics.tmExternalLeading); 820ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 821ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 822ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (my) { 8235aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org my->fTop = -fScale * otm.otmTextMetrics.tmAscent; 8245aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org my->fAscent = -fScale * otm.otmAscent; 8255aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org my->fDescent = -fScale * otm.otmDescent; 8265aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org my->fBottom = fScale * otm.otmTextMetrics.tmDescent; 8275aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org my->fLeading = fScale * (otm.otmTextMetrics.tmInternalLeading 8285aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org + otm.otmTextMetrics.tmExternalLeading); 829ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 830ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 831ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 8327430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com//////////////////////////////////////////////////////////////////////////////////////// 8337430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com 8347430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.comstatic void build_power_table(uint8_t table[], float ee) { 8357430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com for (int i = 0; i < 256; i++) { 8367430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com float x = i / 255.f; 8377430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com x = powf(x, ee); 8387430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com int xx = SkScalarRound(SkFloatToScalar(x * 255)); 8397430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com table[i] = SkToU8(xx); 8407430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com } 8417430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com} 8427430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com 8437430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com// This will invert the gamma applied by GDI, so we can sort-of get linear values. 8447430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com// Needed when we draw non-black, non-white text, and don't know how to bias it. 8457430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.comstatic const uint8_t* getInverseGammaTable() { 8467430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com static bool gInited; 8477430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com static uint8_t gTable[256]; 8487430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com if (!gInited) { 8497430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com UINT level = 0; 8507430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com if (!SystemParametersInfo(SPI_GETFONTSMOOTHINGCONTRAST, 0, &level, 0) || !level) { 8517430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com // can't get the data, so use a default 8527430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com level = 1400; 8537430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com } 8547430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com build_power_table(gTable, level / 1000.0f); 8557430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com gInited = true; 8567430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com } 8577430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com return gTable; 8587430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com} 8597430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com 860ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkColorPriv.h" 861ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 8625e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com// gdi's bitmap is upside-down, so we reverse dst walking in Y 8635e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com// whenever we copy it into skia's buffer 8645e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 8658351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.comstatic int compute_luminance(int r, int g, int b) { 8668351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com// return (r * 2 + g * 5 + b) >> 3; 8678351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com return (r * 27 + g * 92 + b * 9) >> 7; 8688351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com} 8698351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com 8705e2df64215f12660ab26b96816f40ad8e32bf16freed@google.comstatic inline uint8_t rgb_to_a8(SkGdiRGB rgb) { 8716f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com int r = (rgb >> 16) & 0xFF; 8726f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com int g = (rgb >> 8) & 0xFF; 8736f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com int b = (rgb >> 0) & 0xFF; 8748351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com return compute_luminance(r, g, b); 87582a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com} 87682a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 8775e2df64215f12660ab26b96816f40ad8e32bf16freed@google.comstatic inline uint16_t rgb_to_lcd16(SkGdiRGB rgb) { 878ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int r = (rgb >> 16) & 0xFF; 879ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int g = (rgb >> 8) & 0xFF; 880ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int b = (rgb >> 0) & 0xFF; 881ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkPackRGB16(SkR32ToR16(r), SkG32ToG16(g), SkB32ToB16(b)); 882ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 883ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 884754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.comstatic inline SkPMColor rgb_to_lcd32(SkGdiRGB rgb) { 885754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com int r = (rgb >> 16) & 0xFF; 886754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com int g = (rgb >> 8) & 0xFF; 887754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com int b = (rgb >> 0) & 0xFF; 888754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com int a = SkMax32(r, SkMax32(g, b)); 889754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com return SkPackARGB32(a, r, g, b); 890754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com} 891754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com 89282cff020b7e055f2d01686f060a884df842306edreed@google.com// Is this GDI color neither black nor white? If so, we have to keep this 89382cff020b7e055f2d01686f060a884df842306edreed@google.com// image as is, rather than smashing it down to a BW mask. 89482cff020b7e055f2d01686f060a884df842306edreed@google.com// 89582cff020b7e055f2d01686f060a884df842306edreed@google.com// returns int instead of bool, since we don't want/have to pay to convert 89682cff020b7e055f2d01686f060a884df842306edreed@google.com// the zero/non-zero value into a bool 89782cff020b7e055f2d01686f060a884df842306edreed@google.comstatic int is_not_black_or_white(SkGdiRGB c) { 89882cff020b7e055f2d01686f060a884df842306edreed@google.com // same as (but faster than) 89982cff020b7e055f2d01686f060a884df842306edreed@google.com // c &= 0x00FFFFFF; 90082cff020b7e055f2d01686f060a884df842306edreed@google.com // return 0 == c || 0x00FFFFFF == c; 90182cff020b7e055f2d01686f060a884df842306edreed@google.com return (c + (c & 1)) & 0x00FFFFFF; 9025e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 9035e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 9045e2df64215f12660ab26b96816f40ad8e32bf16freed@google.comstatic bool is_rgb_really_bw(const SkGdiRGB* src, int width, int height, int srcRB) { 9055e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int y = 0; y < height; ++y) { 9065e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int x = 0; x < width; ++x) { 90782cff020b7e055f2d01686f060a884df842306edreed@google.com if (is_not_black_or_white(src[x])) { 9085e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com return false; 9095e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 9105e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 9116f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com src = SkTAddByteOffset(src, srcRB); 9125e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 9135e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com return true; 9145e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 9155e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 9165e2df64215f12660ab26b96816f40ad8e32bf16freed@google.comstatic void rgb_to_bw(const SkGdiRGB* SK_RESTRICT src, size_t srcRB, 917754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com const SkGlyph& glyph, int32_t xorMask) { 9185e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const int width = glyph.fWidth; 9195e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const size_t dstRB = (width + 7) >> 3; 9205e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com uint8_t* SK_RESTRICT dst = (uint8_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 9215e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 9225e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com int byteCount = width >> 3; 9235e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com int bitCount = width & 7; 9245e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 9255e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com // adjust srcRB to skip the values in our byteCount loop, 9265e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com // since we increment src locally there 9275e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com srcRB -= byteCount * 8 * sizeof(SkGdiRGB); 9285e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 9295e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int y = 0; y < glyph.fHeight; ++y) { 9305e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com if (byteCount > 0) { 9315e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int i = 0; i < byteCount; ++i) { 9327a230142e01c5a8cf955be12a5f287589b551634reed@google.com unsigned byte = 0; 933754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com byte |= (src[0] ^ xorMask) & (1 << 7); 934754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com byte |= (src[1] ^ xorMask) & (1 << 6); 935754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com byte |= (src[2] ^ xorMask) & (1 << 5); 936754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com byte |= (src[3] ^ xorMask) & (1 << 4); 937754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com byte |= (src[4] ^ xorMask) & (1 << 3); 938754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com byte |= (src[5] ^ xorMask) & (1 << 2); 939754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com byte |= (src[6] ^ xorMask) & (1 << 1); 940754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com byte |= (src[7] ^ xorMask) & (1 << 0); 9416a8f14d9633b330fb8051581828a0aaf4403d1a9reed@google.com dst[i] = byte; 9425e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com src += 8; 9435e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 9445e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 9455e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com if (bitCount > 0) { 9465e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com unsigned byte = 0; 9475e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com unsigned mask = 0x80; 9485e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int i = 0; i < bitCount; i++) { 9496a8f14d9633b330fb8051581828a0aaf4403d1a9reed@google.com byte |= (src[i] ^ xorMask) & mask; 9505e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com mask >>= 1; 9515e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 9525e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com dst[byteCount] = byte; 9535e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 9546f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com src = SkTAddByteOffset(src, srcRB); 9555e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com dst -= dstRB; 9565e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 9575e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 9585e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 9595e2df64215f12660ab26b96816f40ad8e32bf16freed@google.comstatic void rgb_to_a8(const SkGdiRGB* SK_RESTRICT src, size_t srcRB, 960754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com const SkGlyph& glyph, int32_t xorMask) { 9615e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const size_t dstRB = glyph.rowBytes(); 9625e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const int width = glyph.fWidth; 9635e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com uint8_t* SK_RESTRICT dst = (uint8_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 9645e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 9655e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int y = 0; y < glyph.fHeight; y++) { 9665e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int i = 0; i < width; i++) { 967754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com dst[i] = rgb_to_a8(src[i] ^ xorMask); 9685e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 9696f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com src = SkTAddByteOffset(src, srcRB); 9705e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com dst -= dstRB; 9715e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 9725e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 9735e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 9745e2df64215f12660ab26b96816f40ad8e32bf16freed@google.comstatic void rgb_to_lcd16(const SkGdiRGB* SK_RESTRICT src, size_t srcRB, 975754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com const SkGlyph& glyph, int32_t xorMask) { 9765e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const size_t dstRB = glyph.rowBytes(); 9775e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const int width = glyph.fWidth; 9785e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com uint16_t* SK_RESTRICT dst = (uint16_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 9795e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 9805e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int y = 0; y < glyph.fHeight; y++) { 9815e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int i = 0; i < width; i++) { 982754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com dst[i] = rgb_to_lcd16(src[i] ^ xorMask); 9835e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 9846f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com src = SkTAddByteOffset(src, srcRB); 9855e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com dst = (uint16_t*)((char*)dst - dstRB); 9865e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 9875e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 9885e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 989754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.comstatic void rgb_to_lcd32(const SkGdiRGB* SK_RESTRICT src, size_t srcRB, 990754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com const SkGlyph& glyph, int32_t xorMask) { 991754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com const size_t dstRB = glyph.rowBytes(); 992754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com const int width = glyph.fWidth; 993754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com SkPMColor* SK_RESTRICT dst = (SkPMColor*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 994754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com 995754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com for (int y = 0; y < glyph.fHeight; y++) { 996754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com for (int i = 0; i < width; i++) { 997754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com dst[i] = rgb_to_lcd32(src[i] ^ xorMask); 998754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } 9996f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com src = SkTAddByteOffset(src, srcRB); 1000754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com dst = (SkPMColor*)((char*)dst - dstRB); 1001754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } 1002754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com} 1003754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com 10046f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.comstatic inline unsigned clamp255(unsigned x) { 10056f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com SkASSERT(x <= 256); 10066f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com return x - (x >> 8); 10076f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com} 10086f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com 1009ffe49f5380dd5062073efeda70f2f91682c828careed@google.com#define WHITE_LUMINANCE_LIMIT 0xA0 1010ffe49f5380dd5062073efeda70f2f91682c828careed@google.com#define BLACK_LUMINANCE_LIMIT 0x40 1011ffe49f5380dd5062073efeda70f2f91682c828careed@google.com 1012ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comvoid SkScalerContext_Windows::generateImage(const SkGlyph& glyph) { 1013ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkAutoMutexAcquire ac(gFTMutex); 1014ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1015ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(fDDC); 1016ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 10176271117d826098c1399cf7442f8eea2d665cb78areed@google.com const bool isBW = SkMask::kBW_Format == fRec.fMaskFormat; 101882a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com const bool isAA = !isLCD(fRec); 1019ffe49f5380dd5062073efeda70f2f91682c828careed@google.com bool isWhite = fRec.getLuminanceByte() >= WHITE_LUMINANCE_LIMIT; 1020ffe49f5380dd5062073efeda70f2f91682c828careed@google.com bool isBlack = fRec.getLuminanceByte() <= BLACK_LUMINANCE_LIMIT; 10216f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com 10226f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com SkGdiRGB fgColor; 10236f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com uint32_t rgbXOR; 10247430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com const uint8_t* table = NULL; 10256f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com if (isBW || isWhite) { 10266f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com fgColor = 0x00FFFFFF; 10276f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com rgbXOR = 0; 10286f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com } else if (isBlack) { 10296f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com fgColor = 0; 10306f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com rgbXOR = ~0; 10316f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com } else { 10327430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com table = getInverseGammaTable(); 10337430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com fgColor = 0x00FFFFFF; 10346f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com rgbXOR = 0; 10356f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com } 103682a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 103799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com size_t srcRB; 10386f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com const void* bits = fOffscreen.draw(glyph, isBW, fgColor, &srcRB); 103939698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (NULL == bits) { 104039698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com ensure_typeface_accessible(fRec.fFontID); 104139698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com bits = fOffscreen.draw(glyph, isBW, fgColor, &srcRB); 104239698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (NULL == bits) { 104339698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com sk_bzero(glyph.fImage, glyph.computeImageSize()); 104439698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com return; 104539698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 104682a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com } 104782a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 10487430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com if (table) { 10496f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com SkGdiRGB* addr = (SkGdiRGB*)bits; 10506f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com for (int y = 0; y < glyph.fHeight; ++y) { 10516f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com for (int x = 0; x < glyph.fWidth; ++x) { 10526f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com int r = (addr[x] >> 16) & 0xFF; 10536f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com int g = (addr[x] >> 8) & 0xFF; 10546f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com int b = (addr[x] >> 0) & 0xFF; 10557430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com addr[x] = (table[r] << 16) | (table[g] << 8) | table[b]; 10566f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com } 10576f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com addr = SkTAddByteOffset(addr, srcRB); 10586f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com } 10596f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com } 10606f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com 106182a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com int width = glyph.fWidth; 106282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com size_t dstRB = glyph.rowBytes(); 106382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com if (isBW) { 106482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com const uint8_t* src = (const uint8_t*)bits; 106582a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com uint8_t* dst = (uint8_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 106682a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com for (int y = 0; y < glyph.fHeight; y++) { 106782a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com memcpy(dst, src, dstRB); 106882a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com src += srcRB; 106982a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com dst -= dstRB; 1070ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 107182a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com } else if (isAA) { 10726f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com // since the caller may require A8 for maskfilters, we can't check for BW 10736f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com // ... until we have the caller tell us that explicitly 10745e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const SkGdiRGB* src = (const SkGdiRGB*)bits; 10756f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com rgb_to_a8(src, srcRB, glyph, rgbXOR); 107682a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com } else { // LCD16 10775e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const SkGdiRGB* src = (const SkGdiRGB*)bits; 10785e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com if (is_rgb_really_bw(src, width, glyph.fHeight, srcRB)) { 1079754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com rgb_to_bw(src, srcRB, glyph, rgbXOR); 10805e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com ((SkGlyph*)&glyph)->fMaskFormat = SkMask::kBW_Format; 10815e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } else { 1082754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com if (SkMask::kLCD16_Format == glyph.fMaskFormat) { 1083754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com rgb_to_lcd16(src, srcRB, glyph, rgbXOR); 1084754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } else { 1085754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com SkASSERT(SkMask::kLCD32_Format == glyph.fMaskFormat); 1086754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com rgb_to_lcd32(src, srcRB, glyph, rgbXOR); 1087754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } 1088ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1089ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1090ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1091ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1092ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comvoid SkScalerContext_Windows::generatePath(const SkGlyph& glyph, SkPath* path) { 1093ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1094ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkAutoMutexAcquire ac(gFTMutex); 1095ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1096ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(&glyph && path); 1097ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(fDDC); 1098ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1099ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com path->reset(); 1100ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1101ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#if 0 1102ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com char buf[1024]; 1103ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com sprintf(buf, "generatePath: id:%d, w=%d, h=%d, font:%s,fh:%d\n", glyph.fID, glyph.fWidth, glyph.fHeight, lf.lfFaceName, lf.lfHeight); 1104ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com OutputDebugString(buf); 1105ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#endif 1106ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1107ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com GLYPHMETRICS gm; 1108ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com uint32_t total_size = GetGlyphOutlineW(fDDC, glyph.fID, GGO_NATIVE | GGO_GLYPH_INDEX, &gm, BUFFERSIZE, glyphbuf, &fMat22); 110939698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (GDI_ERROR == total_size) { 111039698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com ensure_typeface_accessible(fRec.fFontID); 111139698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com total_size = GetGlyphOutlineW(fDDC, glyph.fID, GGO_NATIVE | GGO_GLYPH_INDEX, &gm, BUFFERSIZE, glyphbuf, &fMat22); 111239698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 1113ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1114ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (GDI_ERROR != total_size) { 1115ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1116ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com const uint8_t* cur_glyph = glyphbuf; 1117ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com const uint8_t* end_glyph = glyphbuf + total_size; 1118ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1119ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com while(cur_glyph < end_glyph) { 1120ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com const TTPOLYGONHEADER* th = (TTPOLYGONHEADER*)cur_glyph; 1121ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1122ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com const uint8_t* end_poly = cur_glyph + th->cb; 1123ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com const uint8_t* cur_poly = cur_glyph + sizeof(TTPOLYGONHEADER); 1124ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1125ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com path->moveTo(SkFixedToScalar(*(SkFixed*)(&th->pfxStart.x)), SkFixedToScalar(*(SkFixed*)(&th->pfxStart.y))); 1126ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1127ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com while(cur_poly < end_poly) { 1128ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com const TTPOLYCURVE* pc = (const TTPOLYCURVE*)cur_poly; 1129ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1130ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (pc->wType == TT_PRIM_LINE) { 1131ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com for (uint16_t i = 0; i < pc->cpfx; i++) { 1132ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com path->lineTo(SkFixedToScalar(*(SkFixed*)(&pc->apfx[i].x)), SkFixedToScalar(*(SkFixed*)(&pc->apfx[i].y))); 1133ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1134ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1135ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1136ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (pc->wType == TT_PRIM_QSPLINE) { 1137ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com for (uint16_t u = 0; u < pc->cpfx - 1; u++) { // Walk through points in spline 1138ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com POINTFX pnt_b = pc->apfx[u]; // B is always the current point 1139ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com POINTFX pnt_c = pc->apfx[u+1]; 1140ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1141ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (u < pc->cpfx - 2) { // If not on last spline, compute C 1142ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com pnt_c.x = SkFixedToFIXED(SkFixedAve(*(SkFixed*)(&pnt_b.x), *(SkFixed*)(&pnt_c.x))); 1143ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com pnt_c.y = SkFixedToFIXED(SkFixedAve(*(SkFixed*)(&pnt_b.y), *(SkFixed*)(&pnt_c.y))); 1144ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1145ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1146ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com path->quadTo(SkFixedToScalar(*(SkFixed*)(&pnt_b.x)), SkFixedToScalar(*(SkFixed*)(&pnt_b.y)), SkFixedToScalar(*(SkFixed*)(&pnt_c.x)), SkFixedToScalar(*(SkFixed*)(&pnt_c.y))); 1147ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1148ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1149ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com cur_poly += sizeof(uint16_t) * 2 + sizeof(POINTFX) * pc->cpfx; 1150ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1151ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com cur_glyph += th->cb; 1152ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com path->close(); 1153ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1154ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1155ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com else { 1156ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(false); 1157ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1158ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com //char buf[1024]; 1159ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com //sprintf(buf, "generatePath: count:%d\n", count); 1160ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com //OutputDebugString(buf); 1161ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1162ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1163ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comvoid SkFontHost::Serialize(const SkTypeface* face, SkWStream* stream) { 11640c00f21fee3f5cfa3aa7e5d46ff94cb8cf340451tomhudson@google.com SkDEBUGFAIL("SkFontHost::Serialize unimplemented"); 1165ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1166ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1167ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comSkTypeface* SkFontHost::Deserialize(SkStream* stream) { 11680c00f21fee3f5cfa3aa7e5d46ff94cb8cf340451tomhudson@google.com SkDEBUGFAIL("SkFontHost::Deserialize unimplemented"); 1169ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return NULL; 1170ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1171ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1172ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic bool getWidthAdvance(HDC hdc, int gId, int16_t* advance) { 1173ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Initialize the MAT2 structure to the identify transformation matrix. 1174ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com static const MAT2 mat2 = {SkScalarToFIXED(1), SkScalarToFIXED(0), 1175ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkScalarToFIXED(0), SkScalarToFIXED(1)}; 1176ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int flags = GGO_METRICS | GGO_GLYPH_INDEX; 1177ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com GLYPHMETRICS gm; 1178ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (GDI_ERROR == GetGlyphOutline(hdc, gId, flags, &gm, 0, NULL, &mat2)) { 1179ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return false; 1180ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1181ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(advance); 1182ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com *advance = gm.gmCellIncX; 1183ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return true; 1184ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1185ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1186ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com// static 1187ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comSkAdvancedTypefaceMetrics* SkFontHost::GetAdvancedTypefaceMetrics( 1188325cb9aa17b94258b362082eb3a799524f4345f3vandebo@chromium.org uint32_t fontID, 118937ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org SkAdvancedTypefaceMetrics::PerGlyphInfo perGlyphInfo, 119037ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org const uint32_t* glyphIDs, 119137ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org uint32_t glyphIDsCount) { 119259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LOGFONT lf; 119359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com GetLogFontByID(fontID, &lf); 1194ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkAdvancedTypefaceMetrics* info = NULL; 1195ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1196ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HDC hdc = CreateCompatibleDC(NULL); 1197ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT font = CreateFontIndirect(&lf); 1198ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT savefont = (HFONT)SelectObject(hdc, font); 1199ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT designFont = NULL; 1200ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 120105b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com const char stem_chars[] = {'i', 'I', '!', '1'}; 120205b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com int16_t min_width; 120305b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com unsigned glyphCount; 120405b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com 1205ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // To request design units, create a logical font whose height is specified 1206ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // as unitsPerEm. 1207ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com OUTLINETEXTMETRIC otm; 120839698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com unsigned int otmRet = GetOutlineTextMetrics(hdc, sizeof(otm), &otm); 120939698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (0 == otmRet) { 121039698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com ensure_typeface_accessible(fontID); 121139698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com otmRet = GetOutlineTextMetrics(hdc, sizeof(otm), &otm); 121239698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 121339698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (!otmRet || !GetTextFace(hdc, LF_FACESIZE, lf.lfFaceName)) { 1214ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com goto Error; 1215ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1216ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com lf.lfHeight = -SkToS32(otm.otmEMSquare); 1217ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com designFont = CreateFontIndirect(&lf); 1218ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SelectObject(hdc, designFont); 1219ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (!GetOutlineTextMetrics(hdc, sizeof(otm), &otm)) { 1220ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com goto Error; 1221ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1222a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyphCount = calculateOutlineGlyphCount(hdc); 1223ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1224ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info = new SkAdvancedTypefaceMetrics; 1225ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fEmSize = otm.otmEMSquare; 1226ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fMultiMaster = false; 1227ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fLastGlyphID = SkToU16(glyphCount - 1); 1228ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle = 0; 1229ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#ifdef UNICODE 1230ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Get the buffer size needed first. 1231ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com size_t str_len = WideCharToMultiByte(CP_UTF8, 0, lf.lfFaceName, -1, NULL, 1232ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 0, NULL, NULL); 1233ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Allocate a buffer (str_len already has terminating null accounted for). 1234ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com char *familyName = new char[str_len]; 1235ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Now actually convert the string. 1236ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com WideCharToMultiByte(CP_UTF8, 0, lf.lfFaceName, -1, familyName, str_len, 1237ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com NULL, NULL); 1238ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fFontName.set(familyName); 1239ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com delete [] familyName; 1240ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#else 1241ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fFontName.set(lf.lfFaceName); 1242ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#endif 1243ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 12446744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org if (perGlyphInfo & SkAdvancedTypefaceMetrics::kToUnicode_PerGlyphInfo) { 12456744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org populate_glyph_to_unicode(hdc, glyphCount, &(info->fGlyphToUnicode)); 12466744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 12476744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 1248d41e70de196e78e21e1001d23a7259785cbd0835vandebo@chromium.org if (glyphCount > 0 && 1249d41e70de196e78e21e1001d23a7259785cbd0835vandebo@chromium.org (otm.otmTextMetrics.tmPitchAndFamily & TMPF_TRUETYPE)) { 1250ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fType = SkAdvancedTypefaceMetrics::kTrueType_Font; 1251ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 1252ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fType = SkAdvancedTypefaceMetrics::kOther_Font; 1253ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fItalicAngle = 0; 1254ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fAscent = 0; 1255ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fDescent = 0; 1256ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStemV = 0; 1257ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fCapHeight = 0; 1258ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fBBox = SkIRect::MakeEmpty(); 1259ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return info; 1260ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 12615aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org 1262ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // If this bit is clear the font is a fixed pitch font. 1263ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (!(otm.otmTextMetrics.tmPitchAndFamily & TMPF_FIXED_PITCH)) { 1264ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kFixedPitch_Style; 1265ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1266ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (otm.otmTextMetrics.tmItalic) { 1267ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kItalic_Style; 1268ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1269ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Setting symbolic style by default for now. 1270ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kSymbolic_Style; 1271ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (otm.otmTextMetrics.tmPitchAndFamily & FF_ROMAN) { 1272ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kSerif_Style; 1273ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else if (otm.otmTextMetrics.tmPitchAndFamily & FF_SCRIPT) { 1274ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kScript_Style; 1275ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1276ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1277ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // The main italic angle of the font, in tenths of a degree counterclockwise 1278ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // from vertical. 1279ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fItalicAngle = otm.otmItalicAngle / 10; 1280ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fAscent = SkToS16(otm.otmTextMetrics.tmAscent); 1281ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fDescent = SkToS16(-otm.otmTextMetrics.tmDescent); 1282ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // TODO(ctguil): Use alternate cap height calculation. 1283ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // MSDN says otmsCapEmHeight is not support but it is returning a value on 1284ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // my Win7 box. 1285ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fCapHeight = otm.otmsCapEmHeight; 1286ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fBBox = 1287ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkIRect::MakeLTRB(otm.otmrcFontBox.left, otm.otmrcFontBox.top, 1288ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com otm.otmrcFontBox.right, otm.otmrcFontBox.bottom); 1289ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1290ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Figure out a good guess for StemV - Min width of i, I, !, 1. 1291ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // This probably isn't very good with an italic font. 129205b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com min_width = SHRT_MAX; 1293ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStemV = 0; 1294ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com for (size_t i = 0; i < SK_ARRAY_COUNT(stem_chars); i++) { 1295ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ABC abcWidths; 1296ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (GetCharABCWidths(hdc, stem_chars[i], stem_chars[i], &abcWidths)) { 1297ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int16_t width = abcWidths.abcB; 1298ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (width > 0 && width < min_width) { 1299ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com min_width = width; 1300ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStemV = min_width; 1301ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1302ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1303ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1304ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1305ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // If bit 1 is set, the font may not be embedded in a document. 1306ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // If bit 1 is clear, the font can be embedded. 1307ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // If bit 2 is set, the embedding is read-only. 1308ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (otm.otmfsType & 0x1) { 1309ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fType = SkAdvancedTypefaceMetrics::kNotEmbeddable_Font; 13100e6dc0a320985ffd31f77eed8a41e62132b9ba95ctguil@chromium.org } else if (perGlyphInfo & 13110e6dc0a320985ffd31f77eed8a41e62132b9ba95ctguil@chromium.org SkAdvancedTypefaceMetrics::kHAdvance_PerGlyphInfo) { 13125aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org if (info->fStyle & SkAdvancedTypefaceMetrics::kFixedPitch_Style) { 13135aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org appendRange(&info->fGlyphWidths, 0); 13145aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org info->fGlyphWidths->fAdvance.append(1, &min_width); 13155aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org finishRange(info->fGlyphWidths.get(), 0, 13165aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org SkAdvancedTypefaceMetrics::WidthRange::kDefault); 13175aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org } else { 13185aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org info->fGlyphWidths.reset( 131937ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org getAdvanceData(hdc, 132037ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org glyphCount, 132137ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org glyphIDs, 132237ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org glyphIDsCount, 132337ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org &getWidthAdvance)); 13245aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org } 1325ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1326ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1327ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comError: 1328ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SelectObject(hdc, savefont); 1329ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteObject(designFont); 1330ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteObject(font); 1331ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteDC(hdc); 1332ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1333ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return info; 1334ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1335ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1336a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com//Dummy representation of a Base64 encoded GUID from create_unique_font_name. 1337a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#define BASE64_GUID_ID "XXXXXXXXXXXXXXXXXXXXXXXX" 1338a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com//Length of GUID representation from create_id, including NULL terminator. 1339a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#define BASE64_GUID_ID_LEN SK_ARRAY_COUNT(BASE64_GUID_ID) 1340a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1341a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comSK_COMPILE_ASSERT(BASE64_GUID_ID_LEN < LF_FACESIZE, GUID_longer_than_facesize); 1342a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1343a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 1344a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com NameID 6 Postscript names cannot have the character '/'. 1345a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com It would be easier to hex encode the GUID, but that is 32 bytes, 1346a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com and many systems have issues with names longer than 28 bytes. 1347a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com The following need not be any standard base64 encoding. 1348a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com The encoded value is never decoded. 1349a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com*/ 1350a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comstatic const char postscript_safe_base64_encode[] = 1351a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com "ABCDEFGHIJKLMNOPQRSTUVWXYZ" 1352a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com "abcdefghijklmnopqrstuvwxyz" 1353a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com "0123456789-_="; 1354a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1355a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 1356a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com Formats a GUID into Base64 and places it into buffer. 1357a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com buffer should have space for at least BASE64_GUID_ID_LEN characters. 1358a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com The string will always be null terminated. 1359a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com XXXXXXXXXXXXXXXXXXXXXXXX0 1360a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 1361a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comstatic void format_guid_b64(const GUID& guid, char* buffer, size_t bufferSize) { 1362a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com SkASSERT(bufferSize >= BASE64_GUID_ID_LEN); 1363a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com size_t written = SkBase64::Encode(&guid, sizeof(guid), buffer, postscript_safe_base64_encode); 1364a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com SkASSERT(written < LF_FACESIZE); 1365a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com buffer[written] = '\0'; 1366a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com} 1367a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1368a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 1369a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com Creates a Base64 encoded GUID and places it into buffer. 1370a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com buffer should have space for at least BASE64_GUID_ID_LEN characters. 1371a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com The string will always be null terminated. 1372a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com XXXXXXXXXXXXXXXXXXXXXXXX0 1373a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 1374a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comstatic HRESULT create_unique_font_name(char* buffer, size_t bufferSize) { 1375a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com GUID guid = {}; 1376a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com if (FAILED(CoCreateGuid(&guid))) { 1377a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return E_UNEXPECTED; 1378a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1379a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com format_guid_b64(guid, buffer, bufferSize); 1380a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1381a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return S_OK; 1382a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com} 1383a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1384a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 1385a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com Introduces a font to GDI. On failure will return NULL. The returned handle 1386a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com should eventually be passed to RemoveFontMemResourceEx. 1387a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com*/ 1388a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comstatic HANDLE activate_font(SkData* fontData) { 1389a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com DWORD numFonts = 0; 1390a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com //AddFontMemResourceEx just copies the data, but does not specify const. 1391a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com HANDLE fontHandle = AddFontMemResourceEx(const_cast<void*>(fontData->data()), 1392a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com fontData->size(), 1393a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 0, 1394a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com &numFonts); 1395a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1396a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com if (fontHandle != NULL && numFonts < 1) { 1397a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com RemoveFontMemResourceEx(fontHandle); 1398a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return NULL; 1399a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1400a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1401a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return fontHandle; 1402a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com} 1403a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1404a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comstatic void logfont_for_name(const char* familyName, LOGFONT& lf) { 1405a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com memset(&lf, 0, sizeof(LOGFONT)); 1406a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#ifdef UNICODE 1407a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Get the buffer size needed first. 1408a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com size_t str_len = ::MultiByteToWideChar(CP_UTF8, 0, familyName, 1409a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com -1, NULL, 0); 1410a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Allocate a buffer (str_len already has terminating null 1411a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // accounted for). 1412a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com wchar_t *wideFamilyName = new wchar_t[str_len]; 1413a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Now actually convert the string. 1414a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com ::MultiByteToWideChar(CP_UTF8, 0, familyName, -1, 1415a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com wideFamilyName, str_len); 1416a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com ::wcsncpy(lf.lfFaceName, wideFamilyName, LF_FACESIZE); 1417a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com delete [] wideFamilyName; 1418a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com lf.lfFaceName[LF_FACESIZE-1] = L'\0'; 1419a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#else 1420a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com ::strncpy(lf.lfFaceName, familyName, LF_FACESIZE); 1421a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com lf.lfFaceName[LF_FACESIZE-1] = '\0'; 1422a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#endif 1423a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com} 1424a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1425ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comSkTypeface* SkFontHost::CreateTypefaceFromStream(SkStream* stream) { 1426a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Create a unique and unpredictable font name. 1427a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Avoids collisions and access from CSS. 1428a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com char familyName[BASE64_GUID_ID_LEN]; 1429a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com const int familyNameSize = SK_ARRAY_COUNT(familyName); 1430a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com if (FAILED(create_unique_font_name(familyName, familyNameSize))) { 1431a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return NULL; 1432a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1433a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1434a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Change the name of the font. 1435e9bbee397ce96aa6642a42823feb1d7c4a8ffd8bbungeman@google.com SkAutoTUnref<SkData> rewrittenFontData(SkOTUtils::RenameFont(stream, familyName, familyNameSize-1)); 1436e9bbee397ce96aa6642a42823feb1d7c4a8ffd8bbungeman@google.com if (NULL == rewrittenFontData.get()) { 1437a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return NULL; 1438a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1439ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1440a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Register the font with GDI. 1441e9bbee397ce96aa6642a42823feb1d7c4a8ffd8bbungeman@google.com HANDLE fontReference = activate_font(rewrittenFontData.get()); 1442a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com if (NULL == fontReference) { 1443a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return NULL; 1444a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1445a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1446a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Create the typeface. 1447a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com LOGFONT lf; 1448a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com logfont_for_name(familyName, lf); 1449a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1450a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return SkCreateFontMemResourceTypefaceFromLOGFONT(lf, fontReference); 1451ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1452ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1453ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comSkStream* SkFontHost::OpenStream(SkFontID uniqueID) { 1454f4c2622a1a3489988f2d85a81fdc132b17a92bddctguil@chromium.org const DWORD kTTCTag = 1455f4c2622a1a3489988f2d85a81fdc132b17a92bddctguil@chromium.org SkEndian_SwapBE32(SkSetFourByteTag('t', 't', 'c', 'f')); 145659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LOGFONT lf; 145759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com GetLogFontByID(uniqueID, &lf); 1458ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1459ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HDC hdc = ::CreateCompatibleDC(NULL); 146059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com HFONT font = CreateFontIndirect(&lf); 1461ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT savefont = (HFONT)SelectObject(hdc, font); 1462ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1463d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org SkMemoryStream* stream = NULL; 1464d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org DWORD tables[2] = {kTTCTag, 0}; 1465d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org for (int i = 0; i < SK_ARRAY_COUNT(tables); i++) { 1466d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org size_t bufferSize = GetFontData(hdc, tables[i], 0, NULL, 0); 146739698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (bufferSize == GDI_ERROR) { 146839698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com ensure_typeface_accessible(uniqueID); 146939698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com bufferSize = GetFontData(hdc, tables[i], 0, NULL, 0); 147039698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 1471d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org if (bufferSize != GDI_ERROR) { 1472d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org stream = new SkMemoryStream(bufferSize); 1473d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org if (GetFontData(hdc, tables[i], 0, (void*)stream->getMemoryBase(), 1474d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org bufferSize)) { 1475d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org break; 1476d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org } else { 1477d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org delete stream; 1478d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org stream = NULL; 1479d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org } 1480d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org } 1481ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1482ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1483ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SelectObject(hdc, savefont); 1484ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteObject(font); 1485ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteDC(hdc); 1486ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1487ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return stream; 1488ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1489ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1490ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comSkScalerContext* SkFontHost::CreateScalerContext(const SkDescriptor* desc) { 1491ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkNEW_ARGS(SkScalerContext_Windows, (desc)); 1492ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1493ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1494ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com/** Return the closest matching typeface given either an existing family 1495ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com (specified by a typeface in that family) or by a familyName, and a 1496ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com requested style. 149790d812b77ab025d5fd01dab904287f5c5bf56228bungeman@google.com 1) If familyFace is null, use familyName. 149890d812b77ab025d5fd01dab904287f5c5bf56228bungeman@google.com 2) If familyName is null, use familyFace. 1499ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 3) If both are null, return the default font that best matches style 1500ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com This MUST not return NULL. 1501ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com */ 1502ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1503ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comSkTypeface* SkFontHost::CreateTypeface(const SkTypeface* familyFace, 1504ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com const char familyName[], 1505ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkTypeface::Style style) { 150659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LOGFONT lf; 1507ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (NULL == familyFace && NULL == familyName) { 150859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf = get_default_font(); 150959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } else if (familyFace) { 151059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LogFontTypeface* face = (LogFontTypeface*)familyFace; 151159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf = face->fLogFont; 1512ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 1513a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com logfont_for_name(familyName, lf); 1514ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 151559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com setStyle(&lf, style); 151659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com return SkCreateTypefaceFromLOGFONT(lf); 1517ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1518ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1519ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comSkTypeface* SkFontHost::CreateTypefaceFromFile(const char path[]) { 1520ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com printf("SkFontHost::CreateTypefaceFromFile unimplemented"); 1521ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return NULL; 1522ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1523ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1524ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comvoid SkFontHost::FilterRec(SkScalerContext::Rec* rec) { 1525e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com unsigned flagsWeDontSupport = SkScalerContext::kDevKernText_Flag | 1526e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kAutohinting_Flag | 1527e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kEmbeddedBitmapText_Flag | 1528e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kEmbolden_Flag | 1529c84547a8d3cb04f0547db282b34e26abfbe64ec3bungeman@google.com SkScalerContext::kSubpixelPositioning_Flag | 1530e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kLCD_BGROrder_Flag | 1531e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kLCD_Vertical_Flag; 1532e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com rec->fFlags &= ~flagsWeDontSupport; 1533e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com 1534e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkPaint::Hinting h = rec->getHinting(); 1535da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com 1536da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com // I think we can support no-hinting, if we get hires outlines and just 1537da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com // use skia to rasterize into a gray-scale mask... 1538da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com#if 0 1539e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com switch (h) { 1540e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kNo_Hinting: 1541e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kSlight_Hinting: 1542e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com h = SkPaint::kNo_Hinting; 1543e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com break; 1544e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kNormal_Hinting: 1545e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kFull_Hinting: 1546e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com h = SkPaint::kNormal_Hinting; 1547e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com break; 1548e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com default: 15490c00f21fee3f5cfa3aa7e5d46ff94cb8cf340451tomhudson@google.com SkDEBUGFAIL("unknown hinting"); 1550e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com } 1551da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com#else 1552da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com h = SkPaint::kNormal_Hinting; 1553da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com#endif 1554e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com rec->setHinting(h); 1555da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com 1556ffe49f5380dd5062073efeda70f2f91682c828careed@google.com // for compatibility at the moment, discretize luminance to 3 settings 1557ffe49f5380dd5062073efeda70f2f91682c828careed@google.com // black, white, gray. This helps with fontcache utilization, since we 1558ffe49f5380dd5062073efeda70f2f91682c828careed@google.com // won't create multiple entries that in the end map to the same results. 1559ffe49f5380dd5062073efeda70f2f91682c828careed@google.com { 1560ffe49f5380dd5062073efeda70f2f91682c828careed@google.com unsigned lum = rec->getLuminanceByte(); 1561ffe49f5380dd5062073efeda70f2f91682c828careed@google.com if (lum <= BLACK_LUMINANCE_LIMIT) { 1562ffe49f5380dd5062073efeda70f2f91682c828careed@google.com lum = 0; 1563ffe49f5380dd5062073efeda70f2f91682c828careed@google.com } else if (lum >= WHITE_LUMINANCE_LIMIT) { 1564ffe49f5380dd5062073efeda70f2f91682c828careed@google.com lum = SkScalerContext::kLuminance_Max; 1565ffe49f5380dd5062073efeda70f2f91682c828careed@google.com } else { 1566ffe49f5380dd5062073efeda70f2f91682c828careed@google.com lum = SkScalerContext::kLuminance_Max >> 1; 1567ffe49f5380dd5062073efeda70f2f91682c828careed@google.com } 1568ffe49f5380dd5062073efeda70f2f91682c828careed@google.com rec->setLuminanceBits(lum); 1569ffe49f5380dd5062073efeda70f2f91682c828careed@google.com } 1570ffe49f5380dd5062073efeda70f2f91682c828careed@google.com 15719181aa84aa288d2bc3ab079b6b40a79ac87d8807reed@google.com// turn this off since GDI might turn A8 into BW! Need a bigger fix. 15729181aa84aa288d2bc3ab079b6b40a79ac87d8807reed@google.com#if 0 1573da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com // Disable LCD when rotated, since GDI's output is ugly 1574da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com if (isLCD(*rec) && !isAxisAligned(*rec)) { 1575da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com rec->fMaskFormat = SkMask::kA8_Format; 1576da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com } 15779181aa84aa288d2bc3ab079b6b40a79ac87d8807reed@google.com#endif 1578754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com 1579754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com#if 0 1580754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com if (SkMask::kLCD16_Format == rec->fMaskFormat) { 1581754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com rec->fMaskFormat = SkMask::kLCD32_Format; 1582754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } 1583754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com#endif 1584754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com} 1585