SkFontHost_win.cpp revision 97efada074e4806479f1350ab1508939c2fdcb53
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" 13e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com#include "SkFontDescriptor.h" 14a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include "SkFontHost.h" 15bbe50131413098bffed9186660c41f047d881596bungeman@google.com#include "SkGlyph.h" 1697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com#include "SkMaskGamma.h" 17a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include "SkOTUtils.h" 18ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkStream.h" 19a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include "SkString.h" 20ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkThread.h" 21ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkTypeface_win.h" 2259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com#include "SkTypefaceCache.h" 23ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkUtils.h" 24ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 25a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include "SkTypes.h" 26a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include <tchar.h> 27a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include <usp10.h> 28a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#include <objbase.h> 29ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 3081275391b157e21249dec04e7c8443331d5ccf3ereed@google.comstatic bool compute_bounds_outset(const LOGFONT& lf, SkIRect* outset) { 315a121add5e7bb191148a4e07f5ad7a1c6773ec24reed@google.com 32b8a5c618d2e18d71707ae4dcafbe5153d7ff427freed@google.com static const struct { 335a121add5e7bb191148a4e07f5ad7a1c6773ec24reed@google.com const char* fUCName; // UTF8 encoded, ascii is upper-case 3481275391b157e21249dec04e7c8443331d5ccf3ereed@google.com SkIRect fOutset; // these are deltas for the glyph's bounds 35b8a5c618d2e18d71707ae4dcafbe5153d7ff427freed@google.com } gData[] = { 365a121add5e7bb191148a4e07f5ad7a1c6773ec24reed@google.com // http://code.google.com/p/chromium/issues/detail?id=130842 3781275391b157e21249dec04e7c8443331d5ccf3ereed@google.com { "DOTUM", { 0, 0, 0, 1 } }, 3881275391b157e21249dec04e7c8443331d5ccf3ereed@google.com { "DOTUMCHE", { 0, 0, 0, 1 } }, 3981275391b157e21249dec04e7c8443331d5ccf3ereed@google.com { "\xEB\x8F\x8B\xEC\x9B\x80", { 0, 0, 0, 1 } }, 4081275391b157e21249dec04e7c8443331d5ccf3ereed@google.com { "\xEB\x8F\x8B\xEC\x9B\x80\xEC\xB2\xB4", { 0, 0, 0, 1 } }, 4181275391b157e21249dec04e7c8443331d5ccf3ereed@google.com { "MS UI GOTHIC", { 1, 0, 0, 0 } }, 42b8a5c618d2e18d71707ae4dcafbe5153d7ff427freed@google.com }; 43b8a5c618d2e18d71707ae4dcafbe5153d7ff427freed@google.com 445a121add5e7bb191148a4e07f5ad7a1c6773ec24reed@google.com /** 455a121add5e7bb191148a4e07f5ad7a1c6773ec24reed@google.com * We convert the target name into upper-case (for ascii chars) UTF8. 465a121add5e7bb191148a4e07f5ad7a1c6773ec24reed@google.com * Our database is already stored in this fashion, and it allows us to 475a121add5e7bb191148a4e07f5ad7a1c6773ec24reed@google.com * search it with straight memcmp, since everyone is in this canonical 485a121add5e7bb191148a4e07f5ad7a1c6773ec24reed@google.com * form. 495a121add5e7bb191148a4e07f5ad7a1c6773ec24reed@google.com */ 50b8a5c618d2e18d71707ae4dcafbe5153d7ff427freed@google.com 515a121add5e7bb191148a4e07f5ad7a1c6773ec24reed@google.com // temp storage is max # TCHARs * max expantion for UTF8 + null 525a121add5e7bb191148a4e07f5ad7a1c6773ec24reed@google.com char name[kMaxBytesInUTF8Sequence * LF_FACESIZE + 1]; 535a121add5e7bb191148a4e07f5ad7a1c6773ec24reed@google.com int index = 0; 545a121add5e7bb191148a4e07f5ad7a1c6773ec24reed@google.com for (int i = 0; i < LF_FACESIZE; ++i) { 555a121add5e7bb191148a4e07f5ad7a1c6773ec24reed@google.com uint16_t c = lf.lfFaceName[i]; 56b8a5c618d2e18d71707ae4dcafbe5153d7ff427freed@google.com if (c >= 'a' && c <= 'z') { 57b8a5c618d2e18d71707ae4dcafbe5153d7ff427freed@google.com c = c - 'a' + 'A'; 58b8a5c618d2e18d71707ae4dcafbe5153d7ff427freed@google.com } 595a121add5e7bb191148a4e07f5ad7a1c6773ec24reed@google.com size_t n = SkUTF16_ToUTF8(&c, 1, &name[index]); 605a121add5e7bb191148a4e07f5ad7a1c6773ec24reed@google.com index += n; 61b8a5c618d2e18d71707ae4dcafbe5153d7ff427freed@google.com if (0 == c) { 62b8a5c618d2e18d71707ae4dcafbe5153d7ff427freed@google.com break; 63b8a5c618d2e18d71707ae4dcafbe5153d7ff427freed@google.com } 64b8a5c618d2e18d71707ae4dcafbe5153d7ff427freed@google.com } 65b8a5c618d2e18d71707ae4dcafbe5153d7ff427freed@google.com 66b8a5c618d2e18d71707ae4dcafbe5153d7ff427freed@google.com for (size_t j = 0; j < SK_ARRAY_COUNT(gData); ++j) { 67b8a5c618d2e18d71707ae4dcafbe5153d7ff427freed@google.com if (!strcmp(gData[j].fUCName, name)) { 6881275391b157e21249dec04e7c8443331d5ccf3ereed@google.com *outset = gData[j].fOutset; 6981275391b157e21249dec04e7c8443331d5ccf3ereed@google.com return true; 70b8a5c618d2e18d71707ae4dcafbe5153d7ff427freed@google.com } 71b8a5c618d2e18d71707ae4dcafbe5153d7ff427freed@google.com } 7281275391b157e21249dec04e7c8443331d5ccf3ereed@google.com return false; 7381275391b157e21249dec04e7c8443331d5ccf3ereed@google.com} 7481275391b157e21249dec04e7c8443331d5ccf3ereed@google.com 7581275391b157e21249dec04e7c8443331d5ccf3ereed@google.com// outset isn't really a rect, but 4 (non-negative) values to outset the 7681275391b157e21249dec04e7c8443331d5ccf3ereed@google.com// glyph's metrics by. For "normal" fonts, all these values should be 0. 7781275391b157e21249dec04e7c8443331d5ccf3ereed@google.comstatic void apply_outset(SkGlyph* glyph, const SkIRect& outset) { 7881275391b157e21249dec04e7c8443331d5ccf3ereed@google.com SkASSERT(outset.fLeft >= 0); 7981275391b157e21249dec04e7c8443331d5ccf3ereed@google.com SkASSERT(outset.fTop >= 0); 8081275391b157e21249dec04e7c8443331d5ccf3ereed@google.com SkASSERT(outset.fRight >= 0); 8181275391b157e21249dec04e7c8443331d5ccf3ereed@google.com SkASSERT(outset.fBottom >= 0); 8281275391b157e21249dec04e7c8443331d5ccf3ereed@google.com 8381275391b157e21249dec04e7c8443331d5ccf3ereed@google.com glyph->fLeft -= outset.fLeft; 8481275391b157e21249dec04e7c8443331d5ccf3ereed@google.com glyph->fTop -= outset.fTop; 8581275391b157e21249dec04e7c8443331d5ccf3ereed@google.com glyph->fWidth += outset.fLeft + outset.fRight; 8681275391b157e21249dec04e7c8443331d5ccf3ereed@google.com glyph->fHeight += outset.fTop + outset.fBottom; 87b8a5c618d2e18d71707ae4dcafbe5153d7ff427freed@google.com} 88b8a5c618d2e18d71707ae4dcafbe5153d7ff427freed@google.com 896f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com// always packed xxRRGGBB 906f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.comtypedef uint32_t SkGdiRGB; 916f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com 926f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.comtemplate <typename T> T* SkTAddByteOffset(T* ptr, size_t byteOffset) { 936f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com return (T*)((char*)ptr + byteOffset); 946f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com} 956f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com 96a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com// define this in your Makefile or .gyp to enforce AA requests 97a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com// which GDI ignores at small sizes. This flag guarantees AA 98a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com// for rotated text, regardless of GDI's notions. 99a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com//#define SK_ENFORCE_ROTATED_TEXT_AA_ON_WINDOWS 100a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 101ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com// client3d has to undefine this for now 102ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#define CAN_USE_LOGFONT_NAME 103ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 10482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.comstatic bool isLCD(const SkScalerContext::Rec& rec) { 10582a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com return SkMask::kLCD16_Format == rec.fMaskFormat || 10682a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com SkMask::kLCD32_Format == rec.fMaskFormat; 10782a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com} 10882a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 109a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.comstatic bool bothZero(SkScalar a, SkScalar b) { 110a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com return 0 == a && 0 == b; 111a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com} 112a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 113a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com// returns false if there is any non-90-rotation or skew 114a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.comstatic bool isAxisAligned(const SkScalerContext::Rec& rec) { 115a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com return 0 == rec.fPreSkewX && 116a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com (bothZero(rec.fPost2x2[0][1], rec.fPost2x2[1][0]) || 117a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com bothZero(rec.fPost2x2[0][0], rec.fPost2x2[1][1])); 118a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com} 119a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 120a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.comstatic bool needToRenderWithSkia(const SkScalerContext::Rec& rec) { 121a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com#ifdef SK_ENFORCE_ROTATED_TEXT_AA_ON_WINDOWS 122a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // What we really want to catch is when GDI will ignore the AA request and give 123a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // us BW instead. Smallish rotated text is one heuristic, so this code is just 124a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // an approximation. We shouldn't need to do this for larger sizes, but at those 125a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // sizes, the quality difference gets less and less between our general 126a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // scanconverter and GDI's. 127a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com if (SkMask::kA8_Format == rec.fMaskFormat && !isAxisAligned(rec)) { 128a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com return true; 129a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com } 130a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com#endif 131a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com // false means allow GDI to generate the bits 132a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com return false; 133a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com} 134a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 135ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comusing namespace skia_advanced_typeface_metrics_utils; 136ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 137ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic const uint16_t BUFFERSIZE = (16384 - 32); 138ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic uint8_t glyphbuf[BUFFERSIZE]; 139ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 140ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com/** 1415aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org * Since LOGFONT wants its textsize as an int, and we support fractional sizes, 142ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com * and since we have a cache of LOGFONTs for our tyepfaces, we always set the 143ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com * lfHeight to a canonical size, and then we use the 2x2 matrix to achieve the 144ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com * actual requested size. 145ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com */ 146ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic const int gCanonicalTextSize = 64; 147ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 148ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic void make_canonical(LOGFONT* lf) { 1495aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org lf->lfHeight = -gCanonicalTextSize; 15059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf->lfQuality = CLEARTYPE_QUALITY;//PROOF_QUALITY; 15159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf->lfCharSet = DEFAULT_CHARSET; 15282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com// lf->lfClipPrecision = 64; 15359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com} 15459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 15590d812b77ab025d5fd01dab904287f5c5bf56228bungeman@google.comstatic SkTypeface::Style get_style(const LOGFONT& lf) { 15659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com unsigned style = 0; 15759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com if (lf.lfWeight >= FW_BOLD) { 15859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com style |= SkTypeface::kBold; 15959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } 16059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com if (lf.lfItalic) { 16159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com style |= SkTypeface::kItalic; 16259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } 16390d812b77ab025d5fd01dab904287f5c5bf56228bungeman@google.com return static_cast<SkTypeface::Style>(style); 16459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com} 16559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 16659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.comstatic void setStyle(LOGFONT* lf, SkTypeface::Style style) { 16759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf->lfWeight = (style & SkTypeface::kBold) != 0 ? FW_BOLD : FW_NORMAL ; 16859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf->lfItalic = ((style & SkTypeface::kItalic) != 0); 169ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 170ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 171ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic inline FIXED SkFixedToFIXED(SkFixed x) { 172ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return *(FIXED*)(&x); 173ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 174a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.comstatic inline SkFixed SkFIXEDToFixed(FIXED x) { 175a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com return *(SkFixed*)(&x); 176a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com} 177ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 178ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic inline FIXED SkScalarToFIXED(SkScalar x) { 179ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkFixedToFIXED(SkScalarToFixed(x)); 180ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 181ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 182a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.comstatic unsigned calculateOutlineGlyphCount(HDC hdc) { 183ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // The 'maxp' table stores the number of glyphs at offset 4, in 2 bytes. 184f4c2622a1a3489988f2d85a81fdc132b17a92bddctguil@chromium.org const DWORD maxpTag = 185f4c2622a1a3489988f2d85a81fdc132b17a92bddctguil@chromium.org SkEndian_SwapBE32(SkSetFourByteTag('m', 'a', 'x', 'p')); 186ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com uint16_t glyphs; 187ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (GetFontData(hdc, maxpTag, 4, &glyphs, sizeof(glyphs)) != GDI_ERROR) { 188ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkEndian_SwapBE16(glyphs); 189ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1905aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org 191ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Binary search for glyph count. 192ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com static const MAT2 mat2 = {{0, 1}, {0, 0}, {0, 0}, {0, 1}}; 193ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int32_t max = SK_MaxU16 + 1; 194ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int32_t min = 0; 195ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com GLYPHMETRICS gm; 196ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com while (min < max) { 197ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int32_t mid = min + ((max - min) / 2); 198ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (GetGlyphOutlineW(hdc, mid, GGO_METRICS | GGO_GLYPH_INDEX, &gm, 0, 199ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com NULL, &mat2) == GDI_ERROR) { 200ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com max = mid; 201ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 202ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com min = mid + 1; 203ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 204ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 205ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(min == max); 206ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return min; 207ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 208ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 209ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comclass LogFontTypeface : public SkTypeface { 210ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.compublic: 21159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LogFontTypeface(SkTypeface::Style style, SkFontID fontID, const LOGFONT& lf) : 212e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com SkTypeface(style, fontID, false), fLogFont(lf), fSerializeAsStream(false) {} 213ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 21459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LOGFONT fLogFont; 215e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com bool fSerializeAsStream; 216ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 21759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com static LogFontTypeface* Create(const LOGFONT& lf) { 21890d812b77ab025d5fd01dab904287f5c5bf56228bungeman@google.com SkTypeface::Style style = get_style(lf); 21959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com SkFontID fontID = SkTypefaceCache::NewFontID(); 22059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com return new LogFontTypeface(style, fontID, lf); 221ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 222ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com}; 223ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 224a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comclass FontMemResourceTypeface : public LogFontTypeface { 225a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.compublic: 226a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com /** 227a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com * Takes ownership of fontMemResource. 228a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 229a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com FontMemResourceTypeface(SkTypeface::Style style, SkFontID fontID, const LOGFONT& lf, HANDLE fontMemResource) : 230e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com LogFontTypeface(style, fontID, lf), fFontMemResource(fontMemResource) { 231e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com fSerializeAsStream = true; 232e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com } 233a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 234a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com HANDLE fFontMemResource; 235a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 236a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com /** 237a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com * The created FontMemResourceTypeface takes ownership of fontMemResource. 238a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 239a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com static FontMemResourceTypeface* Create(const LOGFONT& lf, HANDLE fontMemResource) { 240a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com SkTypeface::Style style = get_style(lf); 241a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com SkFontID fontID = SkTypefaceCache::NewFontID(); 242a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return new FontMemResourceTypeface(style, fontID, lf, fontMemResource); 243a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 244a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 245a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comprotected: 246a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com virtual void weak_dispose() const SK_OVERRIDE { 247a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com RemoveFontMemResourceEx(fFontMemResource); 248a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com //SkTypefaceCache::Remove(this); 249a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com INHERITED::weak_dispose(); 250a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 251a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 252a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comprivate: 253a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com typedef LogFontTypeface INHERITED; 254a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com}; 255a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 256ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic const LOGFONT& get_default_font() { 257ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com static LOGFONT gDefaultFont; 258ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return gDefaultFont; 259ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 260ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 26159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.comstatic bool FindByLogFont(SkTypeface* face, SkTypeface::Style requestedStyle, void* ctx) { 262a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com LogFontTypeface* lface = static_cast<LogFontTypeface*>(face); 26359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com const LOGFONT* lf = reinterpret_cast<const LOGFONT*>(ctx); 264ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 265a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return lface && 266a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com get_style(lface->fLogFont) == requestedStyle && 26759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com !memcmp(&lface->fLogFont, lf, sizeof(LOGFONT)); 26859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com} 26959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 27059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com/** 27159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com * This guy is public. It first searches the cache, and if a match is not found, 27259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com * it creates a new face. 27359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com */ 27459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.comSkTypeface* SkCreateTypefaceFromLOGFONT(const LOGFONT& origLF) { 27559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LOGFONT lf = origLF; 27659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com make_canonical(&lf); 277ee51d1a6e43615ae640410013c36d2d9873e6aa5bungeman@google.com SkTypeface* face = SkTypefaceCache::FindByProcAndRef(FindByLogFont, &lf); 278ee51d1a6e43615ae640410013c36d2d9873e6aa5bungeman@google.com if (NULL == face) { 27959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com face = LogFontTypeface::Create(lf); 28090d812b77ab025d5fd01dab904287f5c5bf56228bungeman@google.com SkTypefaceCache::Add(face, get_style(lf)); 28159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } 28259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com return face; 283ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 284ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 285db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com/** 286a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com * The created SkTypeface takes ownership of fontMemResource. 287a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 288a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comSkTypeface* SkCreateFontMemResourceTypefaceFromLOGFONT(const LOGFONT& origLF, HANDLE fontMemResource) { 289a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com LOGFONT lf = origLF; 290a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com make_canonical(&lf); 291a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com FontMemResourceTypeface* face = FontMemResourceTypeface::Create(lf, fontMemResource); 292a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com SkTypefaceCache::Add(face, get_style(lf), false); 293a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return face; 294a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com} 295a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 296a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 297db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com * This guy is public 298db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com */ 299db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.comvoid SkLOGFONTFromTypeface(const SkTypeface* face, LOGFONT* lf) { 300db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com if (NULL == face) { 301db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com *lf = get_default_font(); 302db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com } else { 303a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com *lf = static_cast<const LogFontTypeface*>(face)->fLogFont; 304db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com } 305db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com} 306db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com 3077d26c590f6bc431a5ecf5c25619b64d058613a4dreed@google.comSkFontID SkFontHost::NextLogicalFont(SkFontID currFontID, SkFontID origFontID) { 308ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Zero means that we don't have any fallback fonts for this fontID. 309ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // This function is implemented on Android, but doesn't have much 310ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // meaning here. 311ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return 0; 312ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 313ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 31439698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.comstatic void ensure_typeface_accessible(SkFontID fontID) { 315a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com LogFontTypeface* face = static_cast<LogFontTypeface*>(SkTypefaceCache::FindByID(fontID)); 316ee51d1a6e43615ae640410013c36d2d9873e6aa5bungeman@google.com if (face) { 317ee51d1a6e43615ae640410013c36d2d9873e6aa5bungeman@google.com SkFontHost::EnsureTypefaceAccessible(*face); 318ee51d1a6e43615ae640410013c36d2d9873e6aa5bungeman@google.com } 31939698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com} 32039698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com 32159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.comstatic void GetLogFontByID(SkFontID fontID, LOGFONT* lf) { 322a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com LogFontTypeface* face = static_cast<LogFontTypeface*>(SkTypefaceCache::FindByID(fontID)); 32359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com if (face) { 32459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com *lf = face->fLogFont; 32559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } else { 32659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com sk_bzero(lf, sizeof(LOGFONT)); 32759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } 32859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com} 32959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 3306744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// Construct Glyph to Unicode table. 3316744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// Unicode code points that require conjugate pairs in utf16 are not 3326744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// supported. 3336744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// TODO(arthurhsu): Add support for conjugate pairs. It looks like that may 3346744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// require parsing the TTF cmap table (platform 4, encoding 12) directly instead 3356744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// of calling GetFontUnicodeRange(). 3366744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.orgstatic void populate_glyph_to_unicode(HDC fontHdc, const unsigned glyphCount, 3376744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkTDArray<SkUnichar>* glyphToUnicode) { 3386744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org DWORD glyphSetBufferSize = GetFontUnicodeRanges(fontHdc, NULL); 3396744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org if (!glyphSetBufferSize) { 3406744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org return; 3416744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 3426744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 3436744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkAutoTDeleteArray<BYTE> glyphSetBuffer(new BYTE[glyphSetBufferSize]); 3446744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org GLYPHSET* glyphSet = 3456744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org reinterpret_cast<LPGLYPHSET>(glyphSetBuffer.get()); 3466744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org if (GetFontUnicodeRanges(fontHdc, glyphSet) != glyphSetBufferSize) { 3476744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org return; 3486744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 3496744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 3506744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org glyphToUnicode->setCount(glyphCount); 3516744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org memset(glyphToUnicode->begin(), 0, glyphCount * sizeof(SkUnichar)); 3526744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org for (DWORD i = 0; i < glyphSet->cRanges; ++i) { 3536744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // There is no guarantee that within a Unicode range, the corresponding 3546744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // glyph id in a font file are continuous. So, even if we have ranges, 3556744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // we can't just use the first and last entry of the range to compute 3566744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // result. We need to enumerate them one by one. 3576744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org int count = glyphSet->ranges[i].cGlyphs; 3586744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkAutoTArray<WCHAR> chars(count + 1); 3596744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org chars[count] = 0; // termintate string 3606744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkAutoTArray<WORD> glyph(count); 3616744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org for (USHORT j = 0; j < count; ++j) { 3626744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org chars[j] = glyphSet->ranges[i].wcLow + j; 3636744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 3646744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org GetGlyphIndicesW(fontHdc, chars.get(), count, glyph.get(), 3656744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org GGI_MARK_NONEXISTING_GLYPHS); 3666744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // If the glyph ID is valid, and the glyph is not mapped, then we will 3676744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // fill in the char id into the vector. If the glyph is mapped already, 3686744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // skip it. 3696744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // TODO(arthurhsu): better improve this. e.g. Get all used char ids from 3706744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // font cache, then generate this mapping table from there. It's 3716744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // unlikely to have collisions since glyph reuse happens mostly for 3726744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // different Unicode pages. 3736744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org for (USHORT j = 0; j < count; ++j) { 3746744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org if (glyph[j] != 0xffff && glyph[j] < glyphCount && 3756744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org (*glyphToUnicode)[glyph[j]] == 0) { 3766744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org (*glyphToUnicode)[glyph[j]] = chars[j]; 3776744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 3786744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 3796744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 3806744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org} 3816744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 38299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com////////////////////////////////////////////////////////////////////////////////////// 38399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 38499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.comstatic int alignTo32(int n) { 38599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com return (n + 31) & ~31; 38699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com} 38799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 38899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.comstruct MyBitmapInfo : public BITMAPINFO { 38999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com RGBQUAD fMoreSpaceForColors[1]; 39099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com}; 39199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 39299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.comclass HDCOffscreen { 39399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.compublic: 39499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HDCOffscreen() { 39599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fFont = 0; 39699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fDC = 0; 39799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fBM = 0; 39899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fBits = NULL; 39999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fWidth = fHeight = 0; 40099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fIsBW = false; 40199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 40299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 40399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com ~HDCOffscreen() { 40499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (fDC) { 40599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com DeleteDC(fDC); 40699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 40799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (fBM) { 40899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com DeleteObject(fBM); 40999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 41099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 41199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 41299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com void init(HFONT font, const XFORM& xform) { 41399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fFont = font; 41499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fXform = xform; 41599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 41699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 41797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const void* draw(const SkGlyph&, bool isBW, size_t* srcRBPtr); 41899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 41999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.comprivate: 42099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HDC fDC; 42199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HBITMAP fBM; 42299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HFONT fFont; 42399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com XFORM fXform; 42499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com void* fBits; // points into fBM 42599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com int fWidth; 42699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com int fHeight; 42799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com bool fIsBW; 428754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com 429754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com enum { 430754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com // will always trigger us to reset the color, since we 4316f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com // should only store 0 or 0x00FFFFFF or gray (0x007F7F7F) 432754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com kInvalid_Color = 12345 433754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com }; 43499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com}; 43599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 436754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.comconst void* HDCOffscreen::draw(const SkGlyph& glyph, bool isBW, 43797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com size_t* srcRBPtr) { 43899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (0 == fDC) { 43999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fDC = CreateCompatibleDC(0); 44099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (0 == fDC) { 44199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com return NULL; 44299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 44399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SetGraphicsMode(fDC, GM_ADVANCED); 44499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SetBkMode(fDC, TRANSPARENT); 44599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SetTextAlign(fDC, TA_LEFT | TA_BASELINE); 44699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SelectObject(fDC, fFont); 44797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com 44897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com COLORREF color = 0x00FFFFFF; 44997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com COLORREF prev = SetTextColor(fDC, color); 45097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com SkASSERT(prev != CLR_INVALID); 45199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 45299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 45399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (fBM && (fIsBW != isBW || fWidth < glyph.fWidth || fHeight < glyph.fHeight)) { 45499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com DeleteObject(fBM); 45599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fBM = 0; 45699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 457754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com fIsBW = isBW; 45899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 45999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fWidth = SkMax32(fWidth, glyph.fWidth); 46099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fHeight = SkMax32(fHeight, glyph.fHeight); 46199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 46299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com int biWidth = isBW ? alignTo32(fWidth) : fWidth; 46399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 46499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (0 == fBM) { 46599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com MyBitmapInfo info; 46699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com sk_bzero(&info, sizeof(info)); 46799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (isBW) { 46899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com RGBQUAD blackQuad = { 0, 0, 0, 0 }; 46999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com RGBQUAD whiteQuad = { 0xFF, 0xFF, 0xFF, 0 }; 47099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiColors[0] = blackQuad; 47199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiColors[1] = whiteQuad; 47299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 47399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biSize = sizeof(info.bmiHeader); 47499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biWidth = biWidth; 47599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biHeight = fHeight; 47699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biPlanes = 1; 47799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biBitCount = isBW ? 1 : 32; 47899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biCompression = BI_RGB; 47999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (isBW) { 48099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com info.bmiHeader.biClrUsed = 2; 48199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 48299edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fBM = CreateDIBSection(fDC, &info, DIB_RGB_COLORS, &fBits, 0, 0); 48399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com if (0 == fBM) { 48499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com return NULL; 48599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 48699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SelectObject(fDC, fBM); 48799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com } 48899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 48999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com // erase 49099edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com size_t srcRB = isBW ? (biWidth >> 3) : (fWidth << 2); 49199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com size_t size = fHeight * srcRB; 49297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com memset(fBits, 0, size); 49399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 49499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com XFORM xform = fXform; 49599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com xform.eDx = (float)-glyph.fLeft; 49699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com xform.eDy = (float)-glyph.fTop; 49799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com SetWorldTransform(fDC, &xform); 49899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 49999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com uint16_t glyphID = glyph.getGlyphID(); 50039698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com BOOL ret = ExtTextOutW(fDC, 0, 0, ETO_GLYPH_INDEX, NULL, reinterpret_cast<LPCWSTR>(&glyphID), 1, NULL); 50199edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com GdiFlush(); 50239698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (0 == ret) { 50339698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com return NULL; 50439698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 50599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com *srcRBPtr = srcRB; 50699edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com // offset to the start of the image 50799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com return (const char*)fBits + (fHeight - glyph.fHeight) * srcRB; 50899edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com} 50999edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 510b8a5c618d2e18d71707ae4dcafbe5153d7ff427freed@google.com////////////////////////////////////////////////////////////////////////////// 51159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 512ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comclass SkScalerContext_Windows : public SkScalerContext { 513ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.compublic: 514ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkScalerContext_Windows(const SkDescriptor* desc); 515ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com virtual ~SkScalerContext_Windows(); 516ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 517ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comprotected: 51897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com virtual unsigned generateGlyphCount() SK_OVERRIDE; 51997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com virtual uint16_t generateCharToGlyph(SkUnichar uni) SK_OVERRIDE; 52097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com virtual void generateAdvance(SkGlyph* glyph) SK_OVERRIDE; 52197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com virtual void generateMetrics(SkGlyph* glyph) SK_OVERRIDE; 52297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com virtual void generateImage(const SkGlyph& glyph, SkMaskGamma::PreBlend* maskPreBlend) SK_OVERRIDE; 52397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com virtual void generatePath(const SkGlyph& glyph, SkPath* path) SK_OVERRIDE; 52497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com virtual void generateFontMetrics(SkPaint::FontMetrics* mX, SkPaint::FontMetrics* mY) SK_OVERRIDE; 52599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 526ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comprivate: 52799edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com HDCOffscreen fOffscreen; 5285aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org SkScalar fScale; // to get from canonical size to real size 529ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com MAT2 fMat22; 530ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com XFORM fXform; 531ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HDC fDDC; 532ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT fSavefont; 533ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT fFont; 534ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SCRIPT_CACHE fSC; 535ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int fGlyphCount; 5361dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 537b8a5c618d2e18d71707ae4dcafbe5153d7ff427freed@google.com /** 538b8a5c618d2e18d71707ae4dcafbe5153d7ff427freed@google.com * Some fonts need extra pixels added to avoid clipping, as the bounds 539b8a5c618d2e18d71707ae4dcafbe5153d7ff427freed@google.com * returned by getOutlineMetrics does not match what GDI draws. Since 540b8a5c618d2e18d71707ae4dcafbe5153d7ff427freed@google.com * this costs more RAM and therefore slower blits, we have a table to 541b8a5c618d2e18d71707ae4dcafbe5153d7ff427freed@google.com * only do this for known "bad" fonts. 542b8a5c618d2e18d71707ae4dcafbe5153d7ff427freed@google.com */ 54381275391b157e21249dec04e7c8443331d5ccf3ereed@google.com SkIRect fOutset; 544b8a5c618d2e18d71707ae4dcafbe5153d7ff427freed@google.com 5451dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com HFONT fHiResFont; 5461dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com MAT2 fMat22Identity; 5471dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com SkMatrix fHiResMatrix; 548a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com enum Type { 549a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com kTrueType_Type, kBitmap_Type, 550a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } fType; 551a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com TEXTMETRIC fTM; 552ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com}; 553ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 554ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic float mul2float(SkScalar a, SkScalar b) { 555ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkScalarToFloat(SkScalarMul(a, b)); 556ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 557ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 558ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic FIXED float2FIXED(float x) { 559ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkFixedToFIXED(SkFloatToFixed(x)); 560ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 561ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 5621771cbf43d9a1334e3d870c635b4215bb888dd98digit@google.comSK_DECLARE_STATIC_MUTEX(gFTMutex); 56359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 5641dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com#define HIRES_TEXTSIZE 2048 5651dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com#define HIRES_SHIFT 11 5661dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.comstatic inline SkFixed HiResToFixed(int value) { 5671dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com return value << (16 - HIRES_SHIFT); 5681dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com} 5691dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 5701dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.comstatic bool needHiResMetrics(const SkScalar mat[2][2]) { 5711dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com return mat[1][0] || mat[0][1]; 5721dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com} 5731dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 57482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.comstatic BYTE compute_quality(const SkScalerContext::Rec& rec) { 57582a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com switch (rec.fMaskFormat) { 57682a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com case SkMask::kBW_Format: 57782a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com return NONANTIALIASED_QUALITY; 57882a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com case SkMask::kLCD16_Format: 57982a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com case SkMask::kLCD32_Format: 58082a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com return CLEARTYPE_QUALITY; 58182a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com default: 5828351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com if (rec.fFlags & SkScalerContext::kGenA8FromLCD_Flag) { 5838351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com return CLEARTYPE_QUALITY; 5848351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com } else { 5858351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com return ANTIALIASED_QUALITY; 5868351aabbfe82a76a698fa2bde00d33c1174518cdreed@google.com } 58782a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com } 58882a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com} 58982a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 590ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comSkScalerContext_Windows::SkScalerContext_Windows(const SkDescriptor* desc) 591ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com : SkScalerContext(desc), fDDC(0), fFont(0), fSavefont(0), fSC(0) 592ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com , fGlyphCount(-1) { 593ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkAutoMutexAcquire ac(gFTMutex); 594ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 595ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fDDC = ::CreateCompatibleDC(NULL); 5961dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com SetGraphicsMode(fDDC, GM_ADVANCED); 597ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SetBkMode(fDDC, TRANSPARENT); 598ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 599ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Scaling by the DPI is inconsistent with how Skia draws elsewhere 600ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com //SkScalar height = -(fRec.fTextSize * GetDeviceCaps(ddc, LOGPIXELSY) / 72); 60159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LOGFONT lf; 60259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com GetLogFontByID(fRec.fFontID, &lf); 603ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com lf.lfHeight = -gCanonicalTextSize; 60482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com lf.lfQuality = compute_quality(fRec); 605ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fFont = CreateFontIndirect(&lf); 6061dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 60781275391b157e21249dec04e7c8443331d5ccf3ereed@google.com if (!compute_bounds_outset(lf, &fOutset)) { 60881275391b157e21249dec04e7c8443331d5ccf3ereed@google.com fOutset.setEmpty(); 60981275391b157e21249dec04e7c8443331d5ccf3ereed@google.com } 610b8a5c618d2e18d71707ae4dcafbe5153d7ff427freed@google.com 6111dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com // if we're rotated, or want fractional widths, create a hires font 6121dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com fHiResFont = 0; 613c84547a8d3cb04f0547db282b34e26abfbe64ec3bungeman@google.com if (needHiResMetrics(fRec.fPost2x2)) { 6141dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com lf.lfHeight = -HIRES_TEXTSIZE; 6151dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com fHiResFont = CreateFontIndirect(&lf); 6161dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 6171dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com fMat22Identity.eM11 = fMat22Identity.eM22 = SkFixedToFIXED(SK_Fixed1); 6181dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com fMat22Identity.eM12 = fMat22Identity.eM21 = SkFixedToFIXED(0); 6191dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 6201dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com // construct a matrix to go from HIRES logical units to our device units 6211dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com fRec.getSingleMatrix(&fHiResMatrix); 6221dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com SkScalar scale = SkScalarInvert(SkIntToScalar(HIRES_TEXTSIZE)); 6231dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com fHiResMatrix.preScale(scale, scale); 6241dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com } 625ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fSavefont = (HFONT)SelectObject(fDDC, fFont); 626a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com 627a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (0 == GetTextMetrics(fDDC, &fTM)) { 628a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com ensure_typeface_accessible(fRec.fFontID); 629a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (0 == GetTextMetrics(fDDC, &fTM)) { 630a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fTM.tmPitchAndFamily = TMPF_TRUETYPE; 631a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 632a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 633a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com // Used a logfont on a memory context, should never get a device font. 63490b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com // Therefore all TMPF_DEVICE will be PostScript fonts. 63590b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com 63690b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com // If TMPF_VECTOR is set, one of TMPF_TRUETYPE or TMPF_DEVICE must be set, 63790b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com // otherwise we have a vector FON, which we don't support. 63890b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com // This was determined by testing with Type1 PFM/PFB and OpenTypeCFF OTF, 63990b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com // as well as looking at Wine bugs and sources. 64090b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com SkASSERT(!(fTM.tmPitchAndFamily & TMPF_VECTOR) || 64190b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com (fTM.tmPitchAndFamily & (TMPF_TRUETYPE | TMPF_DEVICE))); 64290b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com 64390b7e386cab251db78152f18adfd54e019b8dc10bungeman@google.com if (fTM.tmPitchAndFamily & TMPF_VECTOR) { 644a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com // Truetype or PostScript. 645a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com // Stroked FON also gets here (TMPF_VECTOR), but we don't handle it. 646a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fType = SkScalerContext_Windows::kTrueType_Type; 647a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fScale = fRec.fTextSize / gCanonicalTextSize; 648a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 649a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fXform.eM11 = mul2float(fScale, fRec.fPost2x2[0][0]); 650a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fXform.eM12 = mul2float(fScale, fRec.fPost2x2[1][0]); 651a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fXform.eM21 = mul2float(fScale, fRec.fPost2x2[0][1]); 652a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fXform.eM22 = mul2float(fScale, fRec.fPost2x2[1][1]); 653a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fXform.eDx = 0; 654a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fXform.eDy = 0; 655a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 656a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fMat22.eM11 = float2FIXED(fXform.eM11); 657a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fMat22.eM12 = float2FIXED(fXform.eM12); 658a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fMat22.eM21 = float2FIXED(-fXform.eM21); 659a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fMat22.eM22 = float2FIXED(-fXform.eM22); 660a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 661a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (needToRenderWithSkia(fRec)) { 662a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com this->forceGenerateImageFromPath(); 663a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 664a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 665a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } else { 666a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com // Assume bitmap 667a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fType = SkScalerContext_Windows::kBitmap_Type; 668a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fScale = SK_Scalar1; 669a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 670a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fXform.eM11 = 1.0f; 671a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fXform.eM12 = 0.0f; 672a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fXform.eM21 = 0.0f; 673a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fXform.eM22 = 1.0f; 674a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fXform.eDx = 0.0f; 675a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fXform.eDy = 0.0f; 676a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 677a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fMat22.eM11 = SkScalarToFIXED(fRec.fPost2x2[0][0]); 678a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fMat22.eM12 = SkScalarToFIXED(fRec.fPost2x2[1][0]); 679a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fMat22.eM21 = SkScalarToFIXED(-fRec.fPost2x2[0][1]); 680a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fMat22.eM22 = SkScalarToFIXED(-fRec.fPost2x2[1][1]); 681a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 682a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com lf.lfHeight = -SkScalarCeilToInt(fRec.fTextSize); 683a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com HFONT bitmapFont = CreateFontIndirect(&lf); 684a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com SelectObject(fDDC, bitmapFont); 685a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com ::DeleteObject(fFont); 686a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fFont = bitmapFont; 687a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 688a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (0 == GetTextMetrics(fDDC, &fTM)) { 689a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com ensure_typeface_accessible(fRec.fFontID); 690a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com //if the following fails, we'll just draw at gCanonicalTextSize. 691a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com GetTextMetrics(fDDC, &fTM); 692a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 693a767fa06ca28be9df1ff6e08a299e0bec839a2dcreed@google.com } 69499edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com 69599edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com fOffscreen.init(fFont, fXform); 696ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 697ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 698ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comSkScalerContext_Windows::~SkScalerContext_Windows() { 699ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fDDC) { 700ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::SelectObject(fDDC, fSavefont); 701ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::DeleteDC(fDDC); 702ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 703ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fFont) { 704ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::DeleteObject(fFont); 705ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 7061dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com if (fHiResFont) { 7071dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com ::DeleteObject(fHiResFont); 7081dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com } 709ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fSC) { 710ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::ScriptFreeCache(&fSC); 711ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 712ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 713ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 714ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comunsigned SkScalerContext_Windows::generateGlyphCount() { 715ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fGlyphCount < 0) { 716a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (fType == SkScalerContext_Windows::kBitmap_Type) { 717a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com return fTM.tmLastChar; 718a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 719a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com fGlyphCount = calculateOutlineGlyphCount(fDDC); 720ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 721ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return fGlyphCount; 722ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 723ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 724ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comuint16_t SkScalerContext_Windows::generateCharToGlyph(SkUnichar uni) { 725ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com uint16_t index = 0; 726ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com WCHAR c[2]; 727ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // TODO(ctguil): Support characters that generate more than one glyph. 728ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (SkUTF16_FromUnichar(uni, (uint16_t*)c) == 1) { 729ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Type1 fonts fail with uniscribe API. Use GetGlyphIndices for plane 0. 730ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkAssertResult(GetGlyphIndicesW(fDDC, c, 1, &index, 0)); 731ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 732ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Use uniscribe to detemine glyph index for non-BMP characters. 733ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Need to add extra item to SCRIPT_ITEM to work around a bug in older 734ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // windows versions. https://bugzilla.mozilla.org/show_bug.cgi?id=366643 735ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SCRIPT_ITEM si[2 + 1]; 736ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int items; 737ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkAssertResult( 738ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SUCCEEDED(ScriptItemize(c, 2, 2, NULL, NULL, si, &items))); 739ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 740ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com WORD log[2]; 741ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SCRIPT_VISATTR vsa; 742ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int glyphs; 743ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkAssertResult(SUCCEEDED(ScriptShape( 744ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fDDC, &fSC, c, 2, 1, &si[0].a, &index, log, &vsa, &glyphs))); 745ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 746ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return index; 747ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 748ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 749ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comvoid SkScalerContext_Windows::generateAdvance(SkGlyph* glyph) { 750ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com this->generateMetrics(glyph); 751ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 752ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 753ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comvoid SkScalerContext_Windows::generateMetrics(SkGlyph* glyph) { 754ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 755ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(fDDC); 756ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 757a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (fType == SkScalerContext_Windows::kBitmap_Type) { 758a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com SIZE size; 759a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com WORD glyphs = glyph->getGlyphID(0); 760a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (0 == GetTextExtentPointI(fDDC, &glyphs, 1, &size)) { 761a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fWidth = SkToS16(fTM.tmMaxCharWidth); 762a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } else { 763a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fWidth = SkToS16(size.cx); 764a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 765a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fHeight = SkToS16(size.cy); 766a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 767a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fTop = SkToS16(-fTM.tmAscent); 768a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fLeft = SkToS16(0); 769a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fAdvanceX = SkIntToFixed(glyph->fWidth); 770a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fAdvanceY = 0; 771a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 772a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com //Apply matrix to values. 773a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fAdvanceY = SkFixedMul(SkFIXEDToFixed(fMat22.eM21), glyph->fAdvanceX); 774a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->fAdvanceX = SkFixedMul(SkFIXEDToFixed(fMat22.eM11), glyph->fAdvanceX); 775a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 77681275391b157e21249dec04e7c8443331d5ccf3ereed@google.com apply_outset(glyph, fOutset); 777a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com return; 778a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 779a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 780ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com GLYPHMETRICS gm; 7811dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com sk_bzero(&gm, sizeof(gm)); 782ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 783ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com glyph->fRsbDelta = 0; 784ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com glyph->fLsbDelta = 0; 785ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 786ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Note: need to use GGO_GRAY8_BITMAP instead of GGO_METRICS because GGO_METRICS returns a smaller 787ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // BlackBlox; we need the bigger one in case we need the image. fAdvance is the same. 788ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com uint32_t ret = GetGlyphOutlineW(fDDC, glyph->getGlyphID(0), GGO_GRAY8_BITMAP | GGO_GLYPH_INDEX, &gm, 0, NULL, &fMat22); 78939698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (GDI_ERROR == ret) { 79039698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com ensure_typeface_accessible(fRec.fFontID); 79139698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com ret = GetGlyphOutlineW(fDDC, glyph->getGlyphID(0), GGO_GRAY8_BITMAP | GGO_GLYPH_INDEX, &gm, 0, NULL, &fMat22); 79239698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 793ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 794ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (GDI_ERROR != ret) { 795ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (ret == 0) { 796ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // for white space, ret is zero and gmBlackBoxX, gmBlackBoxY are 1 incorrectly! 797ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com gm.gmBlackBoxX = gm.gmBlackBoxY = 0; 798ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 799ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com glyph->fWidth = gm.gmBlackBoxX; 800ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com glyph->fHeight = gm.gmBlackBoxY; 801ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com glyph->fTop = SkToS16(gm.gmptGlyphOrigin.y - gm.gmBlackBoxY); 802ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com glyph->fLeft = SkToS16(gm.gmptGlyphOrigin.x); 803ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com glyph->fAdvanceX = SkIntToFixed(gm.gmCellIncX); 804ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com glyph->fAdvanceY = -SkIntToFixed(gm.gmCellIncY); 805ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 806f8cead5e08fe3298ba09da5a15c2d835747c567dreed@google.com // we outset in all dimensions, since the image may bleed outside 807ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // of the computed bounds returned by GetGlyphOutline. 808ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // This was deduced by trial and error for small text (e.g. 8pt), so there 809ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // maybe a more precise way to make this adjustment... 810f8cead5e08fe3298ba09da5a15c2d835747c567dreed@google.com // 811f8cead5e08fe3298ba09da5a15c2d835747c567dreed@google.com // This test shows us clipping the tops of some of the CJK fonts unless we 812f8cead5e08fe3298ba09da5a15c2d835747c567dreed@google.com // increase the top of the box by 2, hence the height by 4. This seems to 813f8cead5e08fe3298ba09da5a15c2d835747c567dreed@google.com // correspond to an embedded bitmap font, but not sure. 814f8cead5e08fe3298ba09da5a15c2d835747c567dreed@google.com // LayoutTests/fast/text/backslash-to-yen-sign-euc.html 815f8cead5e08fe3298ba09da5a15c2d835747c567dreed@google.com // 8165e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com if (glyph->fWidth) { // don't outset an empty glyph 8175e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com glyph->fWidth += 4; 8185e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com glyph->fHeight += 4; 8195e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com glyph->fTop -= 2; 8205e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com glyph->fLeft -= 2; 821b8a5c618d2e18d71707ae4dcafbe5153d7ff427freed@google.com 82281275391b157e21249dec04e7c8443331d5ccf3ereed@google.com apply_outset(glyph, fOutset); 8235e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 8241dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 8251dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com if (fHiResFont) { 8261dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com SelectObject(fDDC, fHiResFont); 8271dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com sk_bzero(&gm, sizeof(gm)); 8281dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com ret = GetGlyphOutlineW(fDDC, glyph->getGlyphID(0), GGO_METRICS | GGO_GLYPH_INDEX, &gm, 0, NULL, &fMat22Identity); 8291dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com if (GDI_ERROR != ret) { 8301dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com SkPoint advance; 8311dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com fHiResMatrix.mapXY(SkIntToScalar(gm.gmCellIncX), SkIntToScalar(gm.gmCellIncY), &advance); 8321dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com glyph->fAdvanceX = SkScalarToFixed(advance.fX); 8331dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com glyph->fAdvanceY = SkScalarToFixed(advance.fY); 8341dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com } 8351dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com SelectObject(fDDC, fFont); 8361dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com } 837ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 838a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyph->zeroMetrics(); 839ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 840ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 841ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 842ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comvoid SkScalerContext_Windows::generateFontMetrics(SkPaint::FontMetrics* mx, SkPaint::FontMetrics* my) { 843ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com// Note: This code was borrowed from generateLineHeight, which has a note 844ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com// stating that it may be incorrect. 845ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (!(mx || my)) 846ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return; 847ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 848ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(fDDC); 849ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 850a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (fType == SkScalerContext_Windows::kBitmap_Type) { 851a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (mx) { 852a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com mx->fTop = SkIntToScalar(-fTM.tmAscent); 853a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com mx->fAscent = SkIntToScalar(-fTM.tmAscent); 854a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com mx->fDescent = -SkIntToScalar(fTM.tmDescent); 855a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com mx->fBottom = SkIntToScalar(fTM.tmDescent); 856a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com mx->fLeading = SkIntToScalar(fTM.tmInternalLeading 857a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com + fTM.tmExternalLeading); 858a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 859a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 860a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com if (my) { 861a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com my->fTop = SkIntToScalar(-fTM.tmAscent); 862a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com my->fAscent = SkIntToScalar(-fTM.tmAscent); 863a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com my->fDescent = SkIntToScalar(-fTM.tmDescent); 864a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com my->fBottom = SkIntToScalar(fTM.tmDescent); 865a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com my->fLeading = SkIntToScalar(fTM.tmInternalLeading 866a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com + fTM.tmExternalLeading); 867a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 868a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com return; 869a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com } 870a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com 871ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com OUTLINETEXTMETRIC otm; 872ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 873ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com uint32_t ret = GetOutlineTextMetrics(fDDC, sizeof(otm), &otm); 87439698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (GDI_ERROR == ret) { 87539698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com ensure_typeface_accessible(fRec.fFontID); 87639698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com ret = GetOutlineTextMetrics(fDDC, sizeof(otm), &otm); 87739698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 878ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (sizeof(otm) != ret) { 879a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com return; 880ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 881ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 882ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (mx) { 883ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com mx->fTop = -fScale * otm.otmTextMetrics.tmAscent; 8845aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org mx->fAscent = -fScale * otm.otmAscent; 8855aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org mx->fDescent = -fScale * otm.otmDescent; 8865aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org mx->fBottom = fScale * otm.otmTextMetrics.tmDescent; 8875aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org mx->fLeading = fScale * (otm.otmTextMetrics.tmInternalLeading 8885aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org + otm.otmTextMetrics.tmExternalLeading); 889ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 890ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 891ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (my) { 8925aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org my->fTop = -fScale * otm.otmTextMetrics.tmAscent; 8935aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org my->fAscent = -fScale * otm.otmAscent; 8945aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org my->fDescent = -fScale * otm.otmDescent; 8955aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org my->fBottom = fScale * otm.otmTextMetrics.tmDescent; 8965aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org my->fLeading = fScale * (otm.otmTextMetrics.tmInternalLeading 8975aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org + otm.otmTextMetrics.tmExternalLeading); 898ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 899ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 900ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 9017430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com//////////////////////////////////////////////////////////////////////////////////////// 9027430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com 9037430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.comstatic void build_power_table(uint8_t table[], float ee) { 9047430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com for (int i = 0; i < 256; i++) { 9057430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com float x = i / 255.f; 90697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com x = sk_float_pow(x, ee); 9077430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com int xx = SkScalarRound(SkFloatToScalar(x * 255)); 9087430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com table[i] = SkToU8(xx); 9097430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com } 9107430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com} 9117430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com 91297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com/** 91397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * This will invert the gamma applied by GDI (gray-scale antialiased), so we 91497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * can get linear values. 91597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * 91697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * GDI grayscale appears to use a hard-coded gamma of 2.3. 91797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * 91897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * GDI grayscale appears to draw using the black and white rasterizer at four 91997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * times the size and then downsamples to compute the coverage mask. As a 92097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * result there are only seventeen total grays. This lack of fidelity means 92197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * that shifting into other color spaces is imprecise. 92297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com */ 92397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic const uint8_t* getInverseGammaTableGDI() { 92497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com static bool gInited; 92597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com static uint8_t gTableGdi[256]; 92697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com if (!gInited) { 92797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com build_power_table(gTableGdi, 2.3f); 92897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com gInited = true; 92997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } 93097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com return gTableGdi; 93197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com} 93297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com 93397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com/** 93497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * This will invert the gamma applied by GDI ClearType, so we can get linear 93597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * values. 93697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * 93797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * GDI ClearType uses SPI_GETFONTSMOOTHINGCONTRAST / 1000 as the gamma value. 93897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com * If this value is not specified, the default is a gamma of 1.4. 93997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com */ 94097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic const uint8_t* getInverseGammaTableClearType() { 9417430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com static bool gInited; 94297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com static uint8_t gTableClearType[256]; 9437430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com if (!gInited) { 9447430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com UINT level = 0; 9457430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com if (!SystemParametersInfo(SPI_GETFONTSMOOTHINGCONTRAST, 0, &level, 0) || !level) { 9467430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com // can't get the data, so use a default 9477430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com level = 1400; 9487430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com } 94997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com build_power_table(gTableClearType, level / 1000.0f); 9507430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com gInited = true; 9517430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com } 95297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com return gTableClearType; 9537430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com} 9547430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com 955ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkColorPriv.h" 956ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 95797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 95897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic inline uint8_t rgb_to_a8(SkGdiRGB rgb, const uint8_t* table8) { 95997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com SkASSERT( ((rgb >> 16) & 0xFF) == ((rgb >> 8) & 0xFF) && 96097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com ((rgb >> 16) & 0xFF) == ((rgb >> 0) & 0xFF) ); 96197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com return sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 16) & 0xFF, table8); 96282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com} 96382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 96497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 96597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic inline uint16_t rgb_to_lcd16(SkGdiRGB rgb, const uint8_t* tableR, 96697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableG, 96797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableB) { 96897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU r = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 16) & 0xFF, tableR); 96997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU g = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 8) & 0xFF, tableG); 97097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU b = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 0) & 0xFF, tableB); 97197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com return SkPack888ToRGB16(r, g, b); 972ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 973ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 97497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 97597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic inline SkPMColor rgb_to_lcd32(SkGdiRGB rgb, const uint8_t* tableR, 97697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableG, 97797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableB) { 97897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU r = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 16) & 0xFF, tableR); 97997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU g = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 8) & 0xFF, tableG); 98097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com U8CPU b = sk_apply_lut_if<APPLY_PREBLEND>((rgb >> 0) & 0xFF, tableB); 98197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com return SkPackARGB32(0xFF, r, g, b); 982754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com} 983754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com 98482cff020b7e055f2d01686f060a884df842306edreed@google.com// Is this GDI color neither black nor white? If so, we have to keep this 98582cff020b7e055f2d01686f060a884df842306edreed@google.com// image as is, rather than smashing it down to a BW mask. 98682cff020b7e055f2d01686f060a884df842306edreed@google.com// 98782cff020b7e055f2d01686f060a884df842306edreed@google.com// returns int instead of bool, since we don't want/have to pay to convert 98882cff020b7e055f2d01686f060a884df842306edreed@google.com// the zero/non-zero value into a bool 98982cff020b7e055f2d01686f060a884df842306edreed@google.comstatic int is_not_black_or_white(SkGdiRGB c) { 99082cff020b7e055f2d01686f060a884df842306edreed@google.com // same as (but faster than) 99182cff020b7e055f2d01686f060a884df842306edreed@google.com // c &= 0x00FFFFFF; 99282cff020b7e055f2d01686f060a884df842306edreed@google.com // return 0 == c || 0x00FFFFFF == c; 99382cff020b7e055f2d01686f060a884df842306edreed@google.com return (c + (c & 1)) & 0x00FFFFFF; 9945e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 9955e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 9965e2df64215f12660ab26b96816f40ad8e32bf16freed@google.comstatic bool is_rgb_really_bw(const SkGdiRGB* src, int width, int height, int srcRB) { 9975e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int y = 0; y < height; ++y) { 9985e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int x = 0; x < width; ++x) { 99982cff020b7e055f2d01686f060a884df842306edreed@google.com if (is_not_black_or_white(src[x])) { 10005e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com return false; 10015e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 10025e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 10036f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com src = SkTAddByteOffset(src, srcRB); 10045e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 10055e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com return true; 10065e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 10075e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 100897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com// gdi's bitmap is upside-down, so we reverse dst walking in Y 100997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com// whenever we copy it into skia's buffer 10105e2df64215f12660ab26b96816f40ad8e32bf16freed@google.comstatic void rgb_to_bw(const SkGdiRGB* SK_RESTRICT src, size_t srcRB, 101197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const SkGlyph& glyph) { 10125e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const int width = glyph.fWidth; 10135e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const size_t dstRB = (width + 7) >> 3; 10145e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com uint8_t* SK_RESTRICT dst = (uint8_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 10155e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 10165e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com int byteCount = width >> 3; 10175e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com int bitCount = width & 7; 10185e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 10195e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com // adjust srcRB to skip the values in our byteCount loop, 10205e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com // since we increment src locally there 10215e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com srcRB -= byteCount * 8 * sizeof(SkGdiRGB); 10225e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 10235e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int y = 0; y < glyph.fHeight; ++y) { 10245e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com if (byteCount > 0) { 10255e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int i = 0; i < byteCount; ++i) { 10267a230142e01c5a8cf955be12a5f287589b551634reed@google.com unsigned byte = 0; 102797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[0] & (1 << 7); 102897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[1] & (1 << 6); 102997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[2] & (1 << 5); 103097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[3] & (1 << 4); 103197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[4] & (1 << 3); 103297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[5] & (1 << 2); 103397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[6] & (1 << 1); 103497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[7] & (1 << 0); 10356a8f14d9633b330fb8051581828a0aaf4403d1a9reed@google.com dst[i] = byte; 10365e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com src += 8; 10375e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 10385e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 10395e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com if (bitCount > 0) { 10405e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com unsigned byte = 0; 10415e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com unsigned mask = 0x80; 10425e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int i = 0; i < bitCount; i++) { 104397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com byte |= src[i] & mask; 10445e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com mask >>= 1; 10455e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 10465e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com dst[byteCount] = byte; 10475e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 10486f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com src = SkTAddByteOffset(src, srcRB); 10495e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com dst -= dstRB; 10505e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 10515e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 10525e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 105397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 10545e2df64215f12660ab26b96816f40ad8e32bf16freed@google.comstatic void rgb_to_a8(const SkGdiRGB* SK_RESTRICT src, size_t srcRB, 105597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const SkGlyph& glyph, const uint8_t* table8) { 10565e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const size_t dstRB = glyph.rowBytes(); 10575e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const int width = glyph.fWidth; 10585e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com uint8_t* SK_RESTRICT dst = (uint8_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 10595e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 10605e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int y = 0; y < glyph.fHeight; y++) { 10615e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int i = 0; i < width; i++) { 106297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com dst[i] = rgb_to_a8<APPLY_PREBLEND>(src[i], table8); 10635e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 10646f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com src = SkTAddByteOffset(src, srcRB); 10655e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com dst -= dstRB; 10665e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 10675e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 10685e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 106997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 107097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic void rgb_to_lcd16(const SkGdiRGB* SK_RESTRICT src, size_t srcRB, const SkGlyph& glyph, 107197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableR, const uint8_t* tableG, const uint8_t* tableB) { 10725e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const size_t dstRB = glyph.rowBytes(); 10735e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const int width = glyph.fWidth; 10745e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com uint16_t* SK_RESTRICT dst = (uint16_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 10755e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 10765e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int y = 0; y < glyph.fHeight; y++) { 10775e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com for (int i = 0; i < width; i++) { 107897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com dst[i] = rgb_to_lcd16<APPLY_PREBLEND>(src[i], tableR, tableG, tableB); 10795e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 10806f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com src = SkTAddByteOffset(src, srcRB); 10815e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com dst = (uint16_t*)((char*)dst - dstRB); 10825e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } 10835e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com} 10845e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com 108597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comtemplate<bool APPLY_PREBLEND> 108697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comstatic void rgb_to_lcd32(const SkGdiRGB* SK_RESTRICT src, size_t srcRB, const SkGlyph& glyph, 108797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableR, const uint8_t* tableG, const uint8_t* tableB) { 1088754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com const size_t dstRB = glyph.rowBytes(); 1089754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com const int width = glyph.fWidth; 109097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com uint32_t* SK_RESTRICT dst = (uint32_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 1091754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com 1092754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com for (int y = 0; y < glyph.fHeight; y++) { 1093754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com for (int i = 0; i < width; i++) { 109497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com dst[i] = rgb_to_lcd32<APPLY_PREBLEND>(src[i], tableR, tableG, tableB); 1095754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } 10966f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com src = SkTAddByteOffset(src, srcRB); 109797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com dst = (uint32_t*)((char*)dst - dstRB); 1098754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } 1099754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com} 1100754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com 11016f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.comstatic inline unsigned clamp255(unsigned x) { 11026f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com SkASSERT(x <= 256); 11036f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com return x - (x >> 8); 11046f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com} 11056f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com 110697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.comvoid SkScalerContext_Windows::generateImage(const SkGlyph& glyph, SkMaskGamma::PreBlend* maskPreBlend) { 110797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com SkAutoMutexAcquire ac(gFTMutex); 1108ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(fDDC); 1109ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 111097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //Must be careful not to use these if maskPreBlend == NULL 111197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableR = NULL; 111297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableG = NULL; 111397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* tableB = NULL; 111497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com if (maskPreBlend) { 111597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com tableR = maskPreBlend->fR; 111697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com tableG = maskPreBlend->fG; 111797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com tableB = maskPreBlend->fB; 111897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } 111997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com 11206271117d826098c1399cf7442f8eea2d665cb78areed@google.com const bool isBW = SkMask::kBW_Format == fRec.fMaskFormat; 112182a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com const bool isAA = !isLCD(fRec); 112282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 112399edd43813b7f1a8f02146cbd8c783d3c82be4abreed@google.com size_t srcRB; 112497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const void* bits = fOffscreen.draw(glyph, isBW, &srcRB); 112539698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (NULL == bits) { 112639698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com ensure_typeface_accessible(fRec.fFontID); 112797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com bits = fOffscreen.draw(glyph, isBW, &srcRB); 112839698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (NULL == bits) { 112939698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com sk_bzero(glyph.fImage, glyph.computeImageSize()); 113039698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com return; 113139698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 113282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com } 113382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 113497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com if (!isBW) { 113597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com const uint8_t* table = getInverseGammaTableClearType(); 113697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com if (isAA) { 113797efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com table = getInverseGammaTableGDI(); 113897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } 113997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //Note that the following cannot really be integrated into the 114097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //pre-blend, since we may not be applying the pre-blend; when we aren't 114197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //applying the pre-blend it means that a filter wants linear anyway. 114297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //Other code may also be applying the pre-blend, so we'd need another 114397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com //one with this and one without. 11446f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com SkGdiRGB* addr = (SkGdiRGB*)bits; 11456f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com for (int y = 0; y < glyph.fHeight; ++y) { 11466f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com for (int x = 0; x < glyph.fWidth; ++x) { 11476f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com int r = (addr[x] >> 16) & 0xFF; 11486f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com int g = (addr[x] >> 8) & 0xFF; 11496f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com int b = (addr[x] >> 0) & 0xFF; 11507430a3376c0f4e0c2809fedecd12765034f9e3a8reed@google.com addr[x] = (table[r] << 16) | (table[g] << 8) | table[b]; 11516f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com } 11526f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com addr = SkTAddByteOffset(addr, srcRB); 11536f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com } 11546f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com } 11556f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com 115682a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com int width = glyph.fWidth; 115782a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com size_t dstRB = glyph.rowBytes(); 115882a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com if (isBW) { 115982a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com const uint8_t* src = (const uint8_t*)bits; 116082a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com uint8_t* dst = (uint8_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 116182a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com for (int y = 0; y < glyph.fHeight; y++) { 116282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com memcpy(dst, src, dstRB); 116382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com src += srcRB; 116482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com dst -= dstRB; 1165ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 116682a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com } else if (isAA) { 11676f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com // since the caller may require A8 for maskfilters, we can't check for BW 11686f5df48c1d07295b75c1955a69142fb5e66b8647reed@google.com // ... until we have the caller tell us that explicitly 11695e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const SkGdiRGB* src = (const SkGdiRGB*)bits; 117097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com if (maskPreBlend) { 117197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com rgb_to_a8<true>(src, srcRB, glyph, tableG); 117297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } else { 117397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com rgb_to_a8<false>(src, srcRB, glyph, tableG); 117497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } 117582a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com } else { // LCD16 11765e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com const SkGdiRGB* src = (const SkGdiRGB*)bits; 11775e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com if (is_rgb_really_bw(src, width, glyph.fHeight, srcRB)) { 117897efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com rgb_to_bw(src, srcRB, glyph); 11795e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com ((SkGlyph*)&glyph)->fMaskFormat = SkMask::kBW_Format; 11805e2df64215f12660ab26b96816f40ad8e32bf16freed@google.com } else { 1181754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com if (SkMask::kLCD16_Format == glyph.fMaskFormat) { 118297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com if (maskPreBlend) { 118397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com rgb_to_lcd16<true>(src, srcRB, glyph, tableR, tableG, tableB); 118497efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } else { 118597efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com rgb_to_lcd16<false>(src, srcRB, glyph, tableR, tableG, tableB); 118697efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } 1187754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } else { 1188754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com SkASSERT(SkMask::kLCD32_Format == glyph.fMaskFormat); 118997efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com if (maskPreBlend) { 119097efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com rgb_to_lcd32<true>(src, srcRB, glyph, tableR, tableG, tableB); 119197efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } else { 119297efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com rgb_to_lcd32<false>(src, srcRB, glyph, tableR, tableG, tableB); 119397efada074e4806479f1350ab1508939c2fdcb53bungeman@google.com } 1194754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } 1195ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1196ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1197ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1198ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1199ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comvoid SkScalerContext_Windows::generatePath(const SkGlyph& glyph, SkPath* path) { 1200ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1201ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkAutoMutexAcquire ac(gFTMutex); 1202ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1203ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(&glyph && path); 1204ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(fDDC); 1205ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1206ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com path->reset(); 1207ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1208ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#if 0 1209ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com char buf[1024]; 1210ac6b97972d3c5a8e10b79c1409818756310e0f12reed@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); 1211ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com OutputDebugString(buf); 1212ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#endif 1213ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1214ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com GLYPHMETRICS gm; 1215ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com uint32_t total_size = GetGlyphOutlineW(fDDC, glyph.fID, GGO_NATIVE | GGO_GLYPH_INDEX, &gm, BUFFERSIZE, glyphbuf, &fMat22); 121639698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (GDI_ERROR == total_size) { 121739698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com ensure_typeface_accessible(fRec.fFontID); 121839698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com total_size = GetGlyphOutlineW(fDDC, glyph.fID, GGO_NATIVE | GGO_GLYPH_INDEX, &gm, BUFFERSIZE, glyphbuf, &fMat22); 121939698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 1220ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1221ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (GDI_ERROR != total_size) { 1222ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1223ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com const uint8_t* cur_glyph = glyphbuf; 1224ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com const uint8_t* end_glyph = glyphbuf + total_size; 1225ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1226ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com while(cur_glyph < end_glyph) { 1227ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com const TTPOLYGONHEADER* th = (TTPOLYGONHEADER*)cur_glyph; 1228ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1229ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com const uint8_t* end_poly = cur_glyph + th->cb; 1230ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com const uint8_t* cur_poly = cur_glyph + sizeof(TTPOLYGONHEADER); 1231ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1232ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com path->moveTo(SkFixedToScalar(*(SkFixed*)(&th->pfxStart.x)), SkFixedToScalar(*(SkFixed*)(&th->pfxStart.y))); 1233ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1234ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com while(cur_poly < end_poly) { 1235ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com const TTPOLYCURVE* pc = (const TTPOLYCURVE*)cur_poly; 1236ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1237ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (pc->wType == TT_PRIM_LINE) { 1238ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com for (uint16_t i = 0; i < pc->cpfx; i++) { 1239ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com path->lineTo(SkFixedToScalar(*(SkFixed*)(&pc->apfx[i].x)), SkFixedToScalar(*(SkFixed*)(&pc->apfx[i].y))); 1240ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1241ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1242ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1243ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (pc->wType == TT_PRIM_QSPLINE) { 1244ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com for (uint16_t u = 0; u < pc->cpfx - 1; u++) { // Walk through points in spline 1245ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com POINTFX pnt_b = pc->apfx[u]; // B is always the current point 1246ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com POINTFX pnt_c = pc->apfx[u+1]; 1247ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1248ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (u < pc->cpfx - 2) { // If not on last spline, compute C 1249ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com pnt_c.x = SkFixedToFIXED(SkFixedAve(*(SkFixed*)(&pnt_b.x), *(SkFixed*)(&pnt_c.x))); 1250ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com pnt_c.y = SkFixedToFIXED(SkFixedAve(*(SkFixed*)(&pnt_b.y), *(SkFixed*)(&pnt_c.y))); 1251ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1252ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1253ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com path->quadTo(SkFixedToScalar(*(SkFixed*)(&pnt_b.x)), SkFixedToScalar(*(SkFixed*)(&pnt_b.y)), SkFixedToScalar(*(SkFixed*)(&pnt_c.x)), SkFixedToScalar(*(SkFixed*)(&pnt_c.y))); 1254ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1255ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1256ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com cur_poly += sizeof(uint16_t) * 2 + sizeof(POINTFX) * pc->cpfx; 1257ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1258ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com cur_glyph += th->cb; 1259ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com path->close(); 1260ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1261ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1262ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com else { 1263ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(false); 1264ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1265ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com //char buf[1024]; 1266ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com //sprintf(buf, "generatePath: count:%d\n", count); 1267ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com //OutputDebugString(buf); 1268ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1269ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1270e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.comstatic void logfont_for_name(const char* familyName, LOGFONT& lf) { 1271e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com memset(&lf, 0, sizeof(LOGFONT)); 1272e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com#ifdef UNICODE 1273e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com // Get the buffer size needed first. 1274e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com size_t str_len = ::MultiByteToWideChar(CP_UTF8, 0, familyName, 1275e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com -1, NULL, 0); 1276e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com // Allocate a buffer (str_len already has terminating null 1277e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com // accounted for). 1278e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com wchar_t *wideFamilyName = new wchar_t[str_len]; 1279e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com // Now actually convert the string. 1280e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com ::MultiByteToWideChar(CP_UTF8, 0, familyName, -1, 1281e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com wideFamilyName, str_len); 1282e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com ::wcsncpy(lf.lfFaceName, wideFamilyName, LF_FACESIZE - 1); 1283e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com delete [] wideFamilyName; 1284e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com lf.lfFaceName[LF_FACESIZE-1] = L'\0'; 1285e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com#else 1286e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com ::strncpy(lf.lfFaceName, familyName, LF_FACESIZE - 1); 1287e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com lf.lfFaceName[LF_FACESIZE - 1] = '\0'; 1288e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com#endif 1289e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com} 1290e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com 1291e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.comstatic void logfont_to_name(const LOGFONT& lf, SkString* s) { 1292e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com#ifdef UNICODE 1293e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com // Get the buffer size needed first. 1294e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com size_t str_len = WideCharToMultiByte(CP_UTF8, 0, lf.lfFaceName, -1, NULL, 1295e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com 0, NULL, NULL); 1296e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com // Allocate a buffer (str_len already has terminating null accounted for). 1297e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com s->resize(str_len); 1298e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com // Now actually convert the string. 1299e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com WideCharToMultiByte(CP_UTF8, 0, lf.lfFaceName, -1, 1300e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com s->writable_str(), str_len, 1301e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com NULL, NULL); 1302e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com#else 1303e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com s->set(lf.lfFaceName); 1304e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com#endif 1305e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com} 1306e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com 1307e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.comvoid SkFontHost::Serialize(const SkTypeface* rawFace, SkWStream* stream) { 1308e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com const LogFontTypeface* face = static_cast<const LogFontTypeface*>(rawFace); 1309e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com SkFontDescriptor descriptor(face->style()); 1310e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com 1311e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com SkString familyName; 1312e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com logfont_to_name(face->fLogFont, &familyName); 1313e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com descriptor.setFamilyName(familyName.c_str()); 1314e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com //TODO: FileName and PostScriptName currently unsupported. 1315e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com 1316e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com descriptor.serialize(stream); 1317e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com 1318e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com if (face->fSerializeAsStream) { 1319e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com // store the entire font in the fontData 1320e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com SkAutoTUnref<SkStream> fontStream(SkFontHost::OpenStream(face->uniqueID())); 1321e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com const uint32_t length = fontStream->getLength(); 1322e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com 1323e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com stream->writePackedUInt(length); 1324e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com stream->writeStream(fontStream, length); 1325e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com } else { 1326e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com stream->writePackedUInt(0); 1327e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com } 1328ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1329ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1330ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comSkTypeface* SkFontHost::Deserialize(SkStream* stream) { 1331e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com SkFontDescriptor descriptor(stream); 1332e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com 1333e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com const uint32_t customFontDataLength = stream->readPackedUInt(); 1334e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com if (customFontDataLength > 0) { 1335e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com // generate a new stream to store the custom typeface 1336e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com SkAutoTUnref<SkMemoryStream> fontStream(SkNEW_ARGS(SkMemoryStream, (customFontDataLength - 1))); 1337e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com stream->read((void*)fontStream->getMemoryBase(), customFontDataLength - 1); 1338e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com 1339e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com return CreateTypefaceFromStream(fontStream.get()); 1340e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com } 1341e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com 1342e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com return SkFontHost::CreateTypeface(NULL, descriptor.getFamilyName(), descriptor.getStyle()); 1343ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1344ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1345ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic bool getWidthAdvance(HDC hdc, int gId, int16_t* advance) { 1346ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Initialize the MAT2 structure to the identify transformation matrix. 1347ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com static const MAT2 mat2 = {SkScalarToFIXED(1), SkScalarToFIXED(0), 1348ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkScalarToFIXED(0), SkScalarToFIXED(1)}; 1349ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int flags = GGO_METRICS | GGO_GLYPH_INDEX; 1350ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com GLYPHMETRICS gm; 1351ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (GDI_ERROR == GetGlyphOutline(hdc, gId, flags, &gm, 0, NULL, &mat2)) { 1352ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return false; 1353ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1354ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(advance); 1355ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com *advance = gm.gmCellIncX; 1356ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return true; 1357ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1358ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1359ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com// static 1360ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comSkAdvancedTypefaceMetrics* SkFontHost::GetAdvancedTypefaceMetrics( 1361325cb9aa17b94258b362082eb3a799524f4345f3vandebo@chromium.org uint32_t fontID, 136237ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org SkAdvancedTypefaceMetrics::PerGlyphInfo perGlyphInfo, 136337ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org const uint32_t* glyphIDs, 136437ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org uint32_t glyphIDsCount) { 136559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LOGFONT lf; 136659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com GetLogFontByID(fontID, &lf); 1367ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkAdvancedTypefaceMetrics* info = NULL; 1368ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1369ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HDC hdc = CreateCompatibleDC(NULL); 1370ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT font = CreateFontIndirect(&lf); 1371ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT savefont = (HFONT)SelectObject(hdc, font); 1372ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT designFont = NULL; 1373ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 137405b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com const char stem_chars[] = {'i', 'I', '!', '1'}; 137505b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com int16_t min_width; 137605b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com unsigned glyphCount; 137705b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com 1378ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // To request design units, create a logical font whose height is specified 1379ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // as unitsPerEm. 1380ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com OUTLINETEXTMETRIC otm; 138139698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com unsigned int otmRet = GetOutlineTextMetrics(hdc, sizeof(otm), &otm); 138239698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (0 == otmRet) { 138339698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com ensure_typeface_accessible(fontID); 138439698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com otmRet = GetOutlineTextMetrics(hdc, sizeof(otm), &otm); 138539698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 138639698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (!otmRet || !GetTextFace(hdc, LF_FACESIZE, lf.lfFaceName)) { 1387ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com goto Error; 1388ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1389ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com lf.lfHeight = -SkToS32(otm.otmEMSquare); 1390ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com designFont = CreateFontIndirect(&lf); 1391ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SelectObject(hdc, designFont); 1392ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (!GetOutlineTextMetrics(hdc, sizeof(otm), &otm)) { 1393ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com goto Error; 1394ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1395a0319f6d071bb8298e56ace043ea6c623fb358f7bungeman@google.com glyphCount = calculateOutlineGlyphCount(hdc); 1396ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1397ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info = new SkAdvancedTypefaceMetrics; 1398ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fEmSize = otm.otmEMSquare; 1399ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fMultiMaster = false; 1400ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fLastGlyphID = SkToU16(glyphCount - 1); 1401ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle = 0; 1402e70f798ebca1a66f0b568fa46065ebbad9a13b2fbungeman@google.com logfont_to_name(lf, &info->fFontName); 1403ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 14046744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org if (perGlyphInfo & SkAdvancedTypefaceMetrics::kToUnicode_PerGlyphInfo) { 14056744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org populate_glyph_to_unicode(hdc, glyphCount, &(info->fGlyphToUnicode)); 14066744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 14076744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 1408d41e70de196e78e21e1001d23a7259785cbd0835vandebo@chromium.org if (glyphCount > 0 && 1409d41e70de196e78e21e1001d23a7259785cbd0835vandebo@chromium.org (otm.otmTextMetrics.tmPitchAndFamily & TMPF_TRUETYPE)) { 1410ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fType = SkAdvancedTypefaceMetrics::kTrueType_Font; 1411ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 1412ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fType = SkAdvancedTypefaceMetrics::kOther_Font; 1413ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fItalicAngle = 0; 1414ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fAscent = 0; 1415ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fDescent = 0; 1416ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStemV = 0; 1417ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fCapHeight = 0; 1418ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fBBox = SkIRect::MakeEmpty(); 1419ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return info; 1420ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 14215aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org 1422ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // If this bit is clear the font is a fixed pitch font. 1423ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (!(otm.otmTextMetrics.tmPitchAndFamily & TMPF_FIXED_PITCH)) { 1424ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kFixedPitch_Style; 1425ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1426ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (otm.otmTextMetrics.tmItalic) { 1427ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kItalic_Style; 1428ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1429ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Setting symbolic style by default for now. 1430ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kSymbolic_Style; 1431ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (otm.otmTextMetrics.tmPitchAndFamily & FF_ROMAN) { 1432ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kSerif_Style; 1433ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else if (otm.otmTextMetrics.tmPitchAndFamily & FF_SCRIPT) { 1434ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kScript_Style; 1435ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1436ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1437ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // The main italic angle of the font, in tenths of a degree counterclockwise 1438ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // from vertical. 1439ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fItalicAngle = otm.otmItalicAngle / 10; 1440ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fAscent = SkToS16(otm.otmTextMetrics.tmAscent); 1441ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fDescent = SkToS16(-otm.otmTextMetrics.tmDescent); 1442ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // TODO(ctguil): Use alternate cap height calculation. 1443ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // MSDN says otmsCapEmHeight is not support but it is returning a value on 1444ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // my Win7 box. 1445ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fCapHeight = otm.otmsCapEmHeight; 1446ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fBBox = 1447ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkIRect::MakeLTRB(otm.otmrcFontBox.left, otm.otmrcFontBox.top, 1448ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com otm.otmrcFontBox.right, otm.otmrcFontBox.bottom); 1449ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1450ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Figure out a good guess for StemV - Min width of i, I, !, 1. 1451ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // This probably isn't very good with an italic font. 145205b6f3a5a94de475d3a9dcfdd1833e24d933f207reed@google.com min_width = SHRT_MAX; 1453ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStemV = 0; 1454ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com for (size_t i = 0; i < SK_ARRAY_COUNT(stem_chars); i++) { 1455ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ABC abcWidths; 1456ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (GetCharABCWidths(hdc, stem_chars[i], stem_chars[i], &abcWidths)) { 1457ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int16_t width = abcWidths.abcB; 1458ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (width > 0 && width < min_width) { 1459ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com min_width = width; 1460ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStemV = min_width; 1461ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1462ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1463ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1464ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1465ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // If bit 1 is set, the font may not be embedded in a document. 1466ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // If bit 1 is clear, the font can be embedded. 1467ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // If bit 2 is set, the embedding is read-only. 1468ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (otm.otmfsType & 0x1) { 1469ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fType = SkAdvancedTypefaceMetrics::kNotEmbeddable_Font; 14700e6dc0a320985ffd31f77eed8a41e62132b9ba95ctguil@chromium.org } else if (perGlyphInfo & 14710e6dc0a320985ffd31f77eed8a41e62132b9ba95ctguil@chromium.org SkAdvancedTypefaceMetrics::kHAdvance_PerGlyphInfo) { 14725aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org if (info->fStyle & SkAdvancedTypefaceMetrics::kFixedPitch_Style) { 14735aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org appendRange(&info->fGlyphWidths, 0); 14745aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org info->fGlyphWidths->fAdvance.append(1, &min_width); 14755aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org finishRange(info->fGlyphWidths.get(), 0, 14765aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org SkAdvancedTypefaceMetrics::WidthRange::kDefault); 14775aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org } else { 14785aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org info->fGlyphWidths.reset( 147937ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org getAdvanceData(hdc, 148037ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org glyphCount, 148137ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org glyphIDs, 148237ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org glyphIDsCount, 148337ad8fb72ff1b3faac93b01ead2c79e1a06fc172vandebo@chromium.org &getWidthAdvance)); 14845aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org } 1485ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1486ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1487ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comError: 1488ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SelectObject(hdc, savefont); 1489ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteObject(designFont); 1490ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteObject(font); 1491ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteDC(hdc); 1492ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1493ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return info; 1494ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1495ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1496a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com//Dummy representation of a Base64 encoded GUID from create_unique_font_name. 1497a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#define BASE64_GUID_ID "XXXXXXXXXXXXXXXXXXXXXXXX" 1498a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com//Length of GUID representation from create_id, including NULL terminator. 1499a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com#define BASE64_GUID_ID_LEN SK_ARRAY_COUNT(BASE64_GUID_ID) 1500a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1501a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comSK_COMPILE_ASSERT(BASE64_GUID_ID_LEN < LF_FACESIZE, GUID_longer_than_facesize); 1502a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1503a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 1504a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com NameID 6 Postscript names cannot have the character '/'. 1505a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com It would be easier to hex encode the GUID, but that is 32 bytes, 1506a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com and many systems have issues with names longer than 28 bytes. 1507a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com The following need not be any standard base64 encoding. 1508a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com The encoded value is never decoded. 1509a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com*/ 1510a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comstatic const char postscript_safe_base64_encode[] = 1511a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com "ABCDEFGHIJKLMNOPQRSTUVWXYZ" 1512a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com "abcdefghijklmnopqrstuvwxyz" 1513a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com "0123456789-_="; 1514a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1515a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 1516a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com Formats a GUID into Base64 and places it into buffer. 1517a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com buffer should have space for at least BASE64_GUID_ID_LEN characters. 1518a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com The string will always be null terminated. 1519a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com XXXXXXXXXXXXXXXXXXXXXXXX0 1520a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 1521a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comstatic void format_guid_b64(const GUID& guid, char* buffer, size_t bufferSize) { 1522a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com SkASSERT(bufferSize >= BASE64_GUID_ID_LEN); 1523a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com size_t written = SkBase64::Encode(&guid, sizeof(guid), buffer, postscript_safe_base64_encode); 1524a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com SkASSERT(written < LF_FACESIZE); 1525a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com buffer[written] = '\0'; 1526a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com} 1527a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1528a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 1529a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com Creates a Base64 encoded GUID and places it into buffer. 1530a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com buffer should have space for at least BASE64_GUID_ID_LEN characters. 1531a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com The string will always be null terminated. 1532a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com XXXXXXXXXXXXXXXXXXXXXXXX0 1533a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com */ 1534a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comstatic HRESULT create_unique_font_name(char* buffer, size_t bufferSize) { 1535a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com GUID guid = {}; 1536a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com if (FAILED(CoCreateGuid(&guid))) { 1537a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return E_UNEXPECTED; 1538a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1539a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com format_guid_b64(guid, buffer, bufferSize); 1540a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1541a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return S_OK; 1542a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com} 1543a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1544a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com/** 1545a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com Introduces a font to GDI. On failure will return NULL. The returned handle 1546a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com should eventually be passed to RemoveFontMemResourceEx. 1547a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com*/ 1548a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.comstatic HANDLE activate_font(SkData* fontData) { 1549a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com DWORD numFonts = 0; 1550a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com //AddFontMemResourceEx just copies the data, but does not specify const. 1551a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com HANDLE fontHandle = AddFontMemResourceEx(const_cast<void*>(fontData->data()), 1552a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com fontData->size(), 1553a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 0, 1554a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com &numFonts); 1555a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1556a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com if (fontHandle != NULL && numFonts < 1) { 1557a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com RemoveFontMemResourceEx(fontHandle); 1558a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return NULL; 1559a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1560a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1561a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return fontHandle; 1562a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com} 1563a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1564ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comSkTypeface* SkFontHost::CreateTypefaceFromStream(SkStream* stream) { 1565a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Create a unique and unpredictable font name. 1566a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Avoids collisions and access from CSS. 1567a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com char familyName[BASE64_GUID_ID_LEN]; 1568a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com const int familyNameSize = SK_ARRAY_COUNT(familyName); 1569a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com if (FAILED(create_unique_font_name(familyName, familyNameSize))) { 1570a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return NULL; 1571a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1572a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1573a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Change the name of the font. 1574e9bbee397ce96aa6642a42823feb1d7c4a8ffd8bbungeman@google.com SkAutoTUnref<SkData> rewrittenFontData(SkOTUtils::RenameFont(stream, familyName, familyNameSize-1)); 1575e9bbee397ce96aa6642a42823feb1d7c4a8ffd8bbungeman@google.com if (NULL == rewrittenFontData.get()) { 1576a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return NULL; 1577a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1578ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1579a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Register the font with GDI. 1580e9bbee397ce96aa6642a42823feb1d7c4a8ffd8bbungeman@google.com HANDLE fontReference = activate_font(rewrittenFontData.get()); 1581a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com if (NULL == fontReference) { 1582a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return NULL; 1583a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com } 1584a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1585a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com // Create the typeface. 1586a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com LOGFONT lf; 1587a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com logfont_for_name(familyName, lf); 1588a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com 1589a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com return SkCreateFontMemResourceTypefaceFromLOGFONT(lf, fontReference); 1590ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1591ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1592ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comSkStream* SkFontHost::OpenStream(SkFontID uniqueID) { 1593f4c2622a1a3489988f2d85a81fdc132b17a92bddctguil@chromium.org const DWORD kTTCTag = 1594f4c2622a1a3489988f2d85a81fdc132b17a92bddctguil@chromium.org SkEndian_SwapBE32(SkSetFourByteTag('t', 't', 'c', 'f')); 159559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LOGFONT lf; 159659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com GetLogFontByID(uniqueID, &lf); 1597ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1598ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HDC hdc = ::CreateCompatibleDC(NULL); 159959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com HFONT font = CreateFontIndirect(&lf); 1600ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT savefont = (HFONT)SelectObject(hdc, font); 1601ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1602d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org SkMemoryStream* stream = NULL; 1603d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org DWORD tables[2] = {kTTCTag, 0}; 1604d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org for (int i = 0; i < SK_ARRAY_COUNT(tables); i++) { 1605d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org size_t bufferSize = GetFontData(hdc, tables[i], 0, NULL, 0); 160639698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com if (bufferSize == GDI_ERROR) { 160739698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com ensure_typeface_accessible(uniqueID); 160839698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com bufferSize = GetFontData(hdc, tables[i], 0, NULL, 0); 160939698b1bd71fd54c7c44ae8d7224afdaf93c0ddabungeman@google.com } 1610d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org if (bufferSize != GDI_ERROR) { 1611d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org stream = new SkMemoryStream(bufferSize); 1612d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org if (GetFontData(hdc, tables[i], 0, (void*)stream->getMemoryBase(), 1613d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org bufferSize)) { 1614d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org break; 1615d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org } else { 1616d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org delete stream; 1617d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org stream = NULL; 1618d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org } 1619d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org } 1620ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 1621ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1622ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SelectObject(hdc, savefont); 1623ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteObject(font); 1624ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteDC(hdc); 1625ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1626ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return stream; 1627ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1628ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1629ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comSkScalerContext* SkFontHost::CreateScalerContext(const SkDescriptor* desc) { 1630ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkNEW_ARGS(SkScalerContext_Windows, (desc)); 1631ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1632ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1633ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com/** Return the closest matching typeface given either an existing family 1634ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com (specified by a typeface in that family) or by a familyName, and a 1635ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com requested style. 163690d812b77ab025d5fd01dab904287f5c5bf56228bungeman@google.com 1) If familyFace is null, use familyName. 163790d812b77ab025d5fd01dab904287f5c5bf56228bungeman@google.com 2) If familyName is null, use familyFace. 1638ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 3) If both are null, return the default font that best matches style 1639ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com This MUST not return NULL. 1640ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com */ 1641ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1642ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comSkTypeface* SkFontHost::CreateTypeface(const SkTypeface* familyFace, 1643ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com const char familyName[], 1644ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkTypeface::Style style) { 164559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LOGFONT lf; 1646ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (NULL == familyFace && NULL == familyName) { 164759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf = get_default_font(); 164859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } else if (familyFace) { 164959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LogFontTypeface* face = (LogFontTypeface*)familyFace; 165059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf = face->fLogFont; 1651ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 1652a550199c6f37e1b05a386ea57eee4c40cc91d84dbungeman@google.com logfont_for_name(familyName, lf); 1653ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 165459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com setStyle(&lf, style); 165559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com return SkCreateTypefaceFromLOGFONT(lf); 1656ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1657ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1658ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comSkTypeface* SkFontHost::CreateTypefaceFromFile(const char path[]) { 1659ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com printf("SkFontHost::CreateTypefaceFromFile unimplemented"); 1660ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return NULL; 1661ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1662ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1663ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comvoid SkFontHost::FilterRec(SkScalerContext::Rec* rec) { 1664e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com unsigned flagsWeDontSupport = SkScalerContext::kDevKernText_Flag | 1665e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kAutohinting_Flag | 1666e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kEmbeddedBitmapText_Flag | 1667e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kEmbolden_Flag | 1668c84547a8d3cb04f0547db282b34e26abfbe64ec3bungeman@google.com SkScalerContext::kSubpixelPositioning_Flag | 1669e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kLCD_BGROrder_Flag | 1670e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kLCD_Vertical_Flag; 1671e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com rec->fFlags &= ~flagsWeDontSupport; 1672e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com 1673e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkPaint::Hinting h = rec->getHinting(); 1674da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com 1675da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com // I think we can support no-hinting, if we get hires outlines and just 1676da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com // use skia to rasterize into a gray-scale mask... 1677da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com#if 0 1678e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com switch (h) { 1679e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kNo_Hinting: 1680e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kSlight_Hinting: 1681e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com h = SkPaint::kNo_Hinting; 1682e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com break; 1683e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kNormal_Hinting: 1684e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kFull_Hinting: 1685e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com h = SkPaint::kNormal_Hinting; 1686e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com break; 1687e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com default: 16880c00f21fee3f5cfa3aa7e5d46ff94cb8cf340451tomhudson@google.com SkDEBUGFAIL("unknown hinting"); 1689e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com } 1690da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com#else 1691da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com h = SkPaint::kNormal_Hinting; 1692da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com#endif 1693e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com rec->setHinting(h); 1694da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com 16959181aa84aa288d2bc3ab079b6b40a79ac87d8807reed@google.com// turn this off since GDI might turn A8 into BW! Need a bigger fix. 16969181aa84aa288d2bc3ab079b6b40a79ac87d8807reed@google.com#if 0 1697da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com // Disable LCD when rotated, since GDI's output is ugly 1698da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com if (isLCD(*rec) && !isAxisAligned(*rec)) { 1699da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com rec->fMaskFormat = SkMask::kA8_Format; 1700da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com } 17019181aa84aa288d2bc3ab079b6b40a79ac87d8807reed@google.com#endif 1702754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com 1703754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com#if 0 1704754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com if (SkMask::kLCD16_Format == rec->fMaskFormat) { 1705754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com rec->fMaskFormat = SkMask::kLCD32_Format; 1706754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com } 1707754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com#endif 1708754e4ebd10d7353ce55be7dfe0a417e502ef4047reed@google.com} 1709