SkFontHost_win.cpp revision 5aa937b300475c956bfad0c34a6daa71d166f6fa
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 9ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com 10ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkString.h" 11ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkEndian.h" 12ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkFontHost.h" 13ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkDescriptor.h" 14ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkAdvancedTypefaceMetrics.h" 15ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkStream.h" 16ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkThread.h" 17ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkTypeface_win.h" 1859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com#include "SkTypefaceCache.h" 19ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkUtils.h" 20ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 21ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#ifdef WIN32 22ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "windows.h" 23ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "tchar.h" 24ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "Usp10.h" 25ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 26ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com// client3d has to undefine this for now 27ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#define CAN_USE_LOGFONT_NAME 28ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 2982a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.comstatic bool isLCD(const SkScalerContext::Rec& rec) { 3082a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com return SkMask::kLCD16_Format == rec.fMaskFormat || 3182a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com SkMask::kLCD32_Format == rec.fMaskFormat; 3282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com} 3382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 34ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comusing namespace skia_advanced_typeface_metrics_utils; 35ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 36ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic const uint16_t BUFFERSIZE = (16384 - 32); 37ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic uint8_t glyphbuf[BUFFERSIZE]; 38ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 39ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com// Give 1MB font cache budget 40ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#define FONT_CACHE_MEMORY_BUDGET (1024 * 1024) 41ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 42ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com/** 435aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org * Since LOGFONT wants its textsize as an int, and we support fractional sizes, 44ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com * and since we have a cache of LOGFONTs for our tyepfaces, we always set the 45ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com * lfHeight to a canonical size, and then we use the 2x2 matrix to achieve the 46ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com * actual requested size. 47ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com */ 48ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic const int gCanonicalTextSize = 64; 49ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 50ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic void make_canonical(LOGFONT* lf) { 515aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org lf->lfHeight = -gCanonicalTextSize; 5259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf->lfQuality = CLEARTYPE_QUALITY;//PROOF_QUALITY; 5359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf->lfCharSet = DEFAULT_CHARSET; 5482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com// lf->lfClipPrecision = 64; 5559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com} 5659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 5759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.comstatic SkTypeface::Style getStyle(const LOGFONT& lf) { 5859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com unsigned style = 0; 5959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com if (lf.lfWeight >= FW_BOLD) { 6059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com style |= SkTypeface::kBold; 6159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } 6259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com if (lf.lfItalic) { 6359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com style |= SkTypeface::kItalic; 6459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } 6559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com return (SkTypeface::Style)style; 6659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com} 6759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 6859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.comstatic void setStyle(LOGFONT* lf, SkTypeface::Style style) { 6959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf->lfWeight = (style & SkTypeface::kBold) != 0 ? FW_BOLD : FW_NORMAL ; 7059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf->lfItalic = ((style & SkTypeface::kItalic) != 0); 71ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 72ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 73ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic inline FIXED SkFixedToFIXED(SkFixed x) { 74ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return *(FIXED*)(&x); 75ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 76ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 77ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic inline FIXED SkScalarToFIXED(SkScalar x) { 78ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkFixedToFIXED(SkScalarToFixed(x)); 79ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 80ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 81ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic unsigned calculateGlyphCount(HDC hdc) { 82ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // The 'maxp' table stores the number of glyphs at offset 4, in 2 bytes. 83f4c2622a1a3489988f2d85a81fdc132b17a92bddctguil@chromium.org const DWORD maxpTag = 84f4c2622a1a3489988f2d85a81fdc132b17a92bddctguil@chromium.org SkEndian_SwapBE32(SkSetFourByteTag('m', 'a', 'x', 'p')); 85ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com uint16_t glyphs; 86ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (GetFontData(hdc, maxpTag, 4, &glyphs, sizeof(glyphs)) != GDI_ERROR) { 87ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkEndian_SwapBE16(glyphs); 88ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 895aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org 90ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Binary search for glyph count. 91ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com static const MAT2 mat2 = {{0, 1}, {0, 0}, {0, 0}, {0, 1}}; 92ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int32_t max = SK_MaxU16 + 1; 93ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int32_t min = 0; 94ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com GLYPHMETRICS gm; 95ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com while (min < max) { 96ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int32_t mid = min + ((max - min) / 2); 97ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (GetGlyphOutlineW(hdc, mid, GGO_METRICS | GGO_GLYPH_INDEX, &gm, 0, 98ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com NULL, &mat2) == GDI_ERROR) { 99ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com max = mid; 100ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 101ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com min = mid + 1; 102ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 103ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 104ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(min == max); 105ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return min; 106ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 107ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 108ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic SkTypeface::Style GetFontStyle(const LOGFONT& lf) { 109ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int style = SkTypeface::kNormal; 110ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (lf.lfWeight == FW_SEMIBOLD || lf.lfWeight == FW_DEMIBOLD || lf.lfWeight == FW_BOLD) 111ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com style |= SkTypeface::kBold; 112ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (lf.lfItalic) 113ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com style |= SkTypeface::kItalic; 114ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 115ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return (SkTypeface::Style)style; 116ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 117ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 118ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comclass LogFontTypeface : public SkTypeface { 119ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.compublic: 12059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LogFontTypeface(SkTypeface::Style style, SkFontID fontID, const LOGFONT& lf) : 12159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com SkTypeface(style, fontID, false), fLogFont(lf) {} 122ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 12359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LOGFONT fLogFont; 124ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 12559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com static LogFontTypeface* Create(const LOGFONT& lf) { 12659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com SkTypeface::Style style = GetFontStyle(lf); 12759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com SkFontID fontID = SkTypefaceCache::NewFontID(); 12859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com return new LogFontTypeface(style, fontID, lf); 129ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 130ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com}; 131ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 132ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic const LOGFONT& get_default_font() { 133ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com static LOGFONT gDefaultFont; 134ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return gDefaultFont; 135ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 136ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 13759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.comstatic bool FindByLogFont(SkTypeface* face, SkTypeface::Style requestedStyle, void* ctx) { 13859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LogFontTypeface* lface = reinterpret_cast<LogFontTypeface*>(face); 13959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com const LOGFONT* lf = reinterpret_cast<const LOGFONT*>(ctx); 140ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 14159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com return getStyle(lface->fLogFont) == requestedStyle && 14259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com !memcmp(&lface->fLogFont, lf, sizeof(LOGFONT)); 14359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com} 14459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 14559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com/** 14659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com * This guy is public. It first searches the cache, and if a match is not found, 14759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com * it creates a new face. 14859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com */ 14959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.comSkTypeface* SkCreateTypefaceFromLOGFONT(const LOGFONT& origLF) { 15059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LOGFONT lf = origLF; 15159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com make_canonical(&lf); 15259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com SkTypeface* face = SkTypefaceCache::FindByProc(FindByLogFont, &lf); 15359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com if (face) { 15459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com face->ref(); 155ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 15659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com face = LogFontTypeface::Create(lf); 15759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com SkTypefaceCache::Add(face, getStyle(lf)); 15859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } 15959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com return face; 160ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 161ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 162db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com/** 163db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com * This guy is public 164db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com */ 165db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.comvoid SkLOGFONTFromTypeface(const SkTypeface* face, LOGFONT* lf) { 166db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com if (NULL == face) { 167db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com *lf = get_default_font(); 168db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com } else { 169db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com *lf = ((const LogFontTypeface*)face)->fLogFont; 170db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com } 171db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com} 172db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com 1737d26c590f6bc431a5ecf5c25619b64d058613a4dreed@google.comSkFontID SkFontHost::NextLogicalFont(SkFontID currFontID, SkFontID origFontID) { 174ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Zero means that we don't have any fallback fonts for this fontID. 175ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // This function is implemented on Android, but doesn't have much 176ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // meaning here. 177ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return 0; 178ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 179ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 18059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.comstatic void GetLogFontByID(SkFontID fontID, LOGFONT* lf) { 18159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LogFontTypeface* face = (LogFontTypeface*)SkTypefaceCache::FindByID(fontID); 18259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com if (face) { 18359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com *lf = face->fLogFont; 18459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } else { 18559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com sk_bzero(lf, sizeof(LOGFONT)); 18659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } 18759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com} 18859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 1896744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// Construct Glyph to Unicode table. 1906744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// Unicode code points that require conjugate pairs in utf16 are not 1916744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// supported. 1926744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// TODO(arthurhsu): Add support for conjugate pairs. It looks like that may 1936744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// require parsing the TTF cmap table (platform 4, encoding 12) directly instead 1946744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// of calling GetFontUnicodeRange(). 1956744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.orgstatic void populate_glyph_to_unicode(HDC fontHdc, const unsigned glyphCount, 1966744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkTDArray<SkUnichar>* glyphToUnicode) { 1976744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org DWORD glyphSetBufferSize = GetFontUnicodeRanges(fontHdc, NULL); 1986744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org if (!glyphSetBufferSize) { 1996744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org return; 2006744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 2016744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 2026744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkAutoTDeleteArray<BYTE> glyphSetBuffer(new BYTE[glyphSetBufferSize]); 2036744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org GLYPHSET* glyphSet = 2046744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org reinterpret_cast<LPGLYPHSET>(glyphSetBuffer.get()); 2056744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org if (GetFontUnicodeRanges(fontHdc, glyphSet) != glyphSetBufferSize) { 2066744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org return; 2076744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 2086744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 2096744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org glyphToUnicode->setCount(glyphCount); 2106744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org memset(glyphToUnicode->begin(), 0, glyphCount * sizeof(SkUnichar)); 2116744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org for (DWORD i = 0; i < glyphSet->cRanges; ++i) { 2126744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // There is no guarantee that within a Unicode range, the corresponding 2136744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // glyph id in a font file are continuous. So, even if we have ranges, 2146744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // we can't just use the first and last entry of the range to compute 2156744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // result. We need to enumerate them one by one. 2166744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org int count = glyphSet->ranges[i].cGlyphs; 2176744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkAutoTArray<WCHAR> chars(count + 1); 2186744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org chars[count] = 0; // termintate string 2196744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkAutoTArray<WORD> glyph(count); 2206744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org for (USHORT j = 0; j < count; ++j) { 2216744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org chars[j] = glyphSet->ranges[i].wcLow + j; 2226744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 2236744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org GetGlyphIndicesW(fontHdc, chars.get(), count, glyph.get(), 2246744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org GGI_MARK_NONEXISTING_GLYPHS); 2256744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // If the glyph ID is valid, and the glyph is not mapped, then we will 2266744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // fill in the char id into the vector. If the glyph is mapped already, 2276744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // skip it. 2286744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // TODO(arthurhsu): better improve this. e.g. Get all used char ids from 2296744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // font cache, then generate this mapping table from there. It's 2306744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // unlikely to have collisions since glyph reuse happens mostly for 2316744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // different Unicode pages. 2326744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org for (USHORT j = 0; j < count; ++j) { 2336744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org if (glyph[j] != 0xffff && glyph[j] < glyphCount && 2346744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org (*glyphToUnicode)[glyph[j]] == 0) { 2356744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org (*glyphToUnicode)[glyph[j]] = chars[j]; 2366744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 2376744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 2386744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 2396744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org} 2406744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 24159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com////////////////////////////////////////////////////////////////////////////////////////////// 24259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 243ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comclass SkScalerContext_Windows : public SkScalerContext { 244ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.compublic: 245ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkScalerContext_Windows(const SkDescriptor* desc); 246ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com virtual ~SkScalerContext_Windows(); 247ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 248ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comprotected: 249ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com virtual unsigned generateGlyphCount(); 250ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com virtual uint16_t generateCharToGlyph(SkUnichar uni); 251ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com virtual void generateAdvance(SkGlyph* glyph); 252ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com virtual void generateMetrics(SkGlyph* glyph); 253ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com virtual void generateImage(const SkGlyph& glyph); 254ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com virtual void generatePath(const SkGlyph& glyph, SkPath* path); 255ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com virtual void generateFontMetrics(SkPaint::FontMetrics* mX, SkPaint::FontMetrics* mY); 256ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com //virtual SkDeviceContext getDC() {return ddc;} 257ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comprivate: 2585aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org SkScalar fScale; // to get from canonical size to real size 259ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com MAT2 fMat22; 260ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com XFORM fXform; 261ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HDC fDDC; 262ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT fSavefont; 263ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT fFont; 264ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SCRIPT_CACHE fSC; 265ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int fGlyphCount; 2661dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 2671dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com HFONT fHiResFont; 2681dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com MAT2 fMat22Identity; 2691dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com SkMatrix fHiResMatrix; 270ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com}; 271ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 272ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic float mul2float(SkScalar a, SkScalar b) { 273ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkScalarToFloat(SkScalarMul(a, b)); 274ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 275ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 276ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic FIXED float2FIXED(float x) { 277ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkFixedToFIXED(SkFloatToFixed(x)); 278ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 279ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 28059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.comstatic SkMutex gFTMutex; 28159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 2821dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com#define HIRES_TEXTSIZE 2048 2831dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com#define HIRES_SHIFT 11 2841dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.comstatic inline SkFixed HiResToFixed(int value) { 2851dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com return value << (16 - HIRES_SHIFT); 2861dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com} 2871dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 2881dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.comstatic bool needHiResMetrics(const SkScalar mat[2][2]) { 2891dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com return mat[1][0] || mat[0][1]; 2901dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com} 2911dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 29282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.comstatic BYTE compute_quality(const SkScalerContext::Rec& rec) { 29382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com switch (rec.fMaskFormat) { 29482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com case SkMask::kBW_Format: 29582a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com return NONANTIALIASED_QUALITY; 29682a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com case SkMask::kLCD16_Format: 29782a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com case SkMask::kLCD32_Format: 29882a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com return CLEARTYPE_QUALITY; 29982a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com default: 30082a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com return ANTIALIASED_QUALITY; 30182a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com } 30282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com} 30382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 304ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comSkScalerContext_Windows::SkScalerContext_Windows(const SkDescriptor* desc) 305ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com : SkScalerContext(desc), fDDC(0), fFont(0), fSavefont(0), fSC(0) 306ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com , fGlyphCount(-1) { 307ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkAutoMutexAcquire ac(gFTMutex); 308ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 3095aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org fScale = fRec.fTextSize / gCanonicalTextSize; 310ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 311ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fXform.eM11 = mul2float(fScale, fRec.fPost2x2[0][0]); 312ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fXform.eM12 = mul2float(fScale, fRec.fPost2x2[1][0]); 313ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fXform.eM21 = mul2float(fScale, fRec.fPost2x2[0][1]); 314ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fXform.eM22 = mul2float(fScale, fRec.fPost2x2[1][1]); 315ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fXform.eDx = 0; 316ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fXform.eDy = 0; 317ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 318ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fMat22.eM11 = float2FIXED(fXform.eM11); 319ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fMat22.eM12 = float2FIXED(fXform.eM12); 320ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fMat22.eM21 = float2FIXED(-fXform.eM21); 321ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fMat22.eM22 = float2FIXED(-fXform.eM22); 322ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 323ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fDDC = ::CreateCompatibleDC(NULL); 3241dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com SetGraphicsMode(fDDC, GM_ADVANCED); 325ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SetBkMode(fDDC, TRANSPARENT); 326ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 327ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Scaling by the DPI is inconsistent with how Skia draws elsewhere 328ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com //SkScalar height = -(fRec.fTextSize * GetDeviceCaps(ddc, LOGPIXELSY) / 72); 32959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LOGFONT lf; 33059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com GetLogFontByID(fRec.fFontID, &lf); 331ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com lf.lfHeight = -gCanonicalTextSize; 33282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com lf.lfQuality = compute_quality(fRec); 333ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fFont = CreateFontIndirect(&lf); 3341dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 3351dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com // if we're rotated, or want fractional widths, create a hires font 3361dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com fHiResFont = 0; 3371dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com if (needHiResMetrics(fRec.fPost2x2) || (fRec.fFlags & kSubpixelPositioning_Flag)) { 3381dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com lf.lfHeight = -HIRES_TEXTSIZE; 3391dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com fHiResFont = CreateFontIndirect(&lf); 3401dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 3411dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com fMat22Identity.eM11 = fMat22Identity.eM22 = SkFixedToFIXED(SK_Fixed1); 3421dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com fMat22Identity.eM12 = fMat22Identity.eM21 = SkFixedToFIXED(0); 3431dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 3441dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com // construct a matrix to go from HIRES logical units to our device units 3451dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com fRec.getSingleMatrix(&fHiResMatrix); 3461dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com SkScalar scale = SkScalarInvert(SkIntToScalar(HIRES_TEXTSIZE)); 3471dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com fHiResMatrix.preScale(scale, scale); 3481dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com } 349ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fSavefont = (HFONT)SelectObject(fDDC, fFont); 350ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 351ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 352ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comSkScalerContext_Windows::~SkScalerContext_Windows() { 353ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fDDC) { 354ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::SelectObject(fDDC, fSavefont); 355ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::DeleteDC(fDDC); 356ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 357ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fFont) { 358ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::DeleteObject(fFont); 359ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 3601dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com if (fHiResFont) { 3611dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com ::DeleteObject(fHiResFont); 3621dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com } 363ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fSC) { 364ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::ScriptFreeCache(&fSC); 365ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 366ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 367ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 368ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comunsigned SkScalerContext_Windows::generateGlyphCount() { 369ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fGlyphCount < 0) { 370ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fGlyphCount = calculateGlyphCount(fDDC); 371ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 372ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return fGlyphCount; 373ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 374ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 375ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comuint16_t SkScalerContext_Windows::generateCharToGlyph(SkUnichar uni) { 376ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com uint16_t index = 0; 377ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com WCHAR c[2]; 378ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // TODO(ctguil): Support characters that generate more than one glyph. 379ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (SkUTF16_FromUnichar(uni, (uint16_t*)c) == 1) { 380ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Type1 fonts fail with uniscribe API. Use GetGlyphIndices for plane 0. 381ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkAssertResult(GetGlyphIndicesW(fDDC, c, 1, &index, 0)); 382ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 383ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Use uniscribe to detemine glyph index for non-BMP characters. 384ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Need to add extra item to SCRIPT_ITEM to work around a bug in older 385ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // windows versions. https://bugzilla.mozilla.org/show_bug.cgi?id=366643 386ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SCRIPT_ITEM si[2 + 1]; 387ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int items; 388ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkAssertResult( 389ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SUCCEEDED(ScriptItemize(c, 2, 2, NULL, NULL, si, &items))); 390ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 391ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com WORD log[2]; 392ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SCRIPT_VISATTR vsa; 393ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int glyphs; 394ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkAssertResult(SUCCEEDED(ScriptShape( 395ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fDDC, &fSC, c, 2, 1, &si[0].a, &index, log, &vsa, &glyphs))); 396ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 397ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return index; 398ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 399ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 400ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comvoid SkScalerContext_Windows::generateAdvance(SkGlyph* glyph) { 401ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com this->generateMetrics(glyph); 402ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 403ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 404ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comvoid SkScalerContext_Windows::generateMetrics(SkGlyph* glyph) { 405ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 406ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(fDDC); 407ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 408ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com GLYPHMETRICS gm; 4091dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com sk_bzero(&gm, sizeof(gm)); 410ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 411ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com glyph->fRsbDelta = 0; 412ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com glyph->fLsbDelta = 0; 413ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 414ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Note: need to use GGO_GRAY8_BITMAP instead of GGO_METRICS because GGO_METRICS returns a smaller 415ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // BlackBlox; we need the bigger one in case we need the image. fAdvance is the same. 416ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com uint32_t ret = GetGlyphOutlineW(fDDC, glyph->getGlyphID(0), GGO_GRAY8_BITMAP | GGO_GLYPH_INDEX, &gm, 0, NULL, &fMat22); 417ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 418ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (GDI_ERROR != ret) { 419ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (ret == 0) { 420ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // for white space, ret is zero and gmBlackBoxX, gmBlackBoxY are 1 incorrectly! 421ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com gm.gmBlackBoxX = gm.gmBlackBoxY = 0; 422ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 423ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com glyph->fWidth = gm.gmBlackBoxX; 424ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com glyph->fHeight = gm.gmBlackBoxY; 425ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com glyph->fTop = SkToS16(gm.gmptGlyphOrigin.y - gm.gmBlackBoxY); 426ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com glyph->fLeft = SkToS16(gm.gmptGlyphOrigin.x); 427ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com glyph->fAdvanceX = SkIntToFixed(gm.gmCellIncX); 428ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com glyph->fAdvanceY = -SkIntToFixed(gm.gmCellIncY); 429ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 43082a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com // we outset by 1 in all dimensions, since the image may bleed outside 431ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // of the computed bounds returned by GetGlyphOutline. 432ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // This was deduced by trial and error for small text (e.g. 8pt), so there 433ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // maybe a more precise way to make this adjustment... 43482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com glyph->fWidth += 2; 43582a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com glyph->fHeight += 2; 43682a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com glyph->fTop -= 1; 43782a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com glyph->fLeft -= 1; 4381dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 4391dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com if (fHiResFont) { 4401dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com SelectObject(fDDC, fHiResFont); 4411dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com sk_bzero(&gm, sizeof(gm)); 4421dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com ret = GetGlyphOutlineW(fDDC, glyph->getGlyphID(0), GGO_METRICS | GGO_GLYPH_INDEX, &gm, 0, NULL, &fMat22Identity); 4431dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com if (GDI_ERROR != ret) { 4441dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com SkPoint advance; 4451dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com fHiResMatrix.mapXY(SkIntToScalar(gm.gmCellIncX), SkIntToScalar(gm.gmCellIncY), &advance); 4461dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com glyph->fAdvanceX = SkScalarToFixed(advance.fX); 4471dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com glyph->fAdvanceY = SkScalarToFixed(advance.fY); 4481dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com } 4491dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com SelectObject(fDDC, fFont); 4501dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com } 451ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 452ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com glyph->fWidth = 0; 453ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 454ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 455ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 456ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comvoid SkScalerContext_Windows::generateFontMetrics(SkPaint::FontMetrics* mx, SkPaint::FontMetrics* my) { 457ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com// Note: This code was borrowed from generateLineHeight, which has a note 458ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com// stating that it may be incorrect. 459ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (!(mx || my)) 460ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return; 461ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 462ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(fDDC); 463ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 464ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com OUTLINETEXTMETRIC otm; 465ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 466ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com uint32_t ret = GetOutlineTextMetrics(fDDC, sizeof(otm), &otm); 467ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (sizeof(otm) != ret) { 468ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return; 469ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 470ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 471ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (mx) { 472ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com mx->fTop = -fScale * otm.otmTextMetrics.tmAscent; 4735aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org mx->fAscent = -fScale * otm.otmAscent; 4745aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org mx->fDescent = -fScale * otm.otmDescent; 4755aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org mx->fBottom = fScale * otm.otmTextMetrics.tmDescent; 4765aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org mx->fLeading = fScale * (otm.otmTextMetrics.tmInternalLeading 4775aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org + otm.otmTextMetrics.tmExternalLeading); 478ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 479ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 480ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (my) { 4815aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org my->fTop = -fScale * otm.otmTextMetrics.tmAscent; 4825aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org my->fAscent = -fScale * otm.otmAscent; 4835aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org my->fDescent = -fScale * otm.otmDescent; 4845aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org my->fBottom = fScale * otm.otmTextMetrics.tmDescent; 4855aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org my->fLeading = fScale * (otm.otmTextMetrics.tmInternalLeading 4865aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org + otm.otmTextMetrics.tmExternalLeading); 487ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 488ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 489ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 490ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkColorPriv.h" 491ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 49282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.comstatic inline uint8_t rgb_to_a8(uint32_t rgb) { 49382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com // can pick any component, since we're grayscale 49482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com int r = (rgb >> 16) & 0xFF; 49582a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com // invert, since we draw black-on-white, but we want the original 49682a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com // src mask values. 49782a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com return 255 - r; 49882a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com} 49982a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 500ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic inline uint16_t rgb_to_lcd16(uint32_t rgb) { 501ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int r = (rgb >> 16) & 0xFF; 502ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int g = (rgb >> 8) & 0xFF; 503ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int b = (rgb >> 0) & 0xFF; 504ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 505ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // invert, since we draw black-on-white, but we want the original 506ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // src mask values. 507ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com r = 255 - r; 508ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com g = 255 - g; 509ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com b = 255 - b; 510ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkPackRGB16(SkR32ToR16(r), SkG32ToG16(g), SkB32ToB16(b)); 511ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 512ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 5136271117d826098c1399cf7442f8eea2d665cb78areed@google.comstatic int alignTo32(int n) { 5146271117d826098c1399cf7442f8eea2d665cb78areed@google.com return (n + 31) & ~31; 5156271117d826098c1399cf7442f8eea2d665cb78areed@google.com} 5166271117d826098c1399cf7442f8eea2d665cb78areed@google.com 5176271117d826098c1399cf7442f8eea2d665cb78areed@google.comstruct MyBitmapInfo : public BITMAPINFO { 5186271117d826098c1399cf7442f8eea2d665cb78areed@google.com RGBQUAD fMoreSpaceForColors[1]; 5196271117d826098c1399cf7442f8eea2d665cb78areed@google.com}; 5206271117d826098c1399cf7442f8eea2d665cb78areed@google.com 521ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comvoid SkScalerContext_Windows::generateImage(const SkGlyph& glyph) { 522ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 523ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkAutoMutexAcquire ac(gFTMutex); 524ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 525ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(fDDC); 526ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 5276271117d826098c1399cf7442f8eea2d665cb78areed@google.com const bool isBW = SkMask::kBW_Format == fRec.fMaskFormat; 52882a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com const bool isAA = !isLCD(fRec); 52982a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com HDC dc = CreateCompatibleDC(0); 53082a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com void* bits = 0; 53182a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com int biWidth = isBW ? alignTo32(glyph.fWidth) : glyph.fWidth; 53282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 53382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com MyBitmapInfo info; 53482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com sk_bzero(&info, sizeof(info)); 53582a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com if (isBW) { 53682a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com RGBQUAD blackQuad = { 0, 0, 0, 0 }; 53782a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com RGBQUAD whiteQuad = { 0xFF, 0xFF, 0xFF, 0 }; 53882a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com info.bmiColors[0] = blackQuad; 53982a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com info.bmiColors[1] = whiteQuad; 54082a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com } 54182a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com info.bmiHeader.biSize = sizeof(info.bmiHeader); 54282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com info.bmiHeader.biWidth = biWidth; 54382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com info.bmiHeader.biHeight = glyph.fHeight; 54482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com info.bmiHeader.biPlanes = 1; 54582a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com info.bmiHeader.biBitCount = isBW ? 1 : 32; 54682a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com info.bmiHeader.biCompression = BI_RGB; 54782a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com if (isBW) { 54882a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com info.bmiHeader.biClrUsed = 2; 54982a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com } 55082a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com HBITMAP bm = CreateDIBSection(dc, &info, DIB_RGB_COLORS, &bits, 0, 0); 55182a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com SelectObject(dc, bm); 55282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 55382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com // erase to white 55482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com size_t srcRB = isBW ? (biWidth >> 3) : (glyph.fWidth << 2); 55582a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com size_t size = glyph.fHeight * srcRB; 55682a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com memset(bits, isBW ? 0 : 0xFF, size); 55782a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 55882a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com SetGraphicsMode(dc, GM_ADVANCED); 55982a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com SetBkMode(dc, TRANSPARENT); 56082a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com SetTextAlign(dc, TA_LEFT | TA_BASELINE); 56182a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 56282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com XFORM xform = fXform; 56382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com xform.eDx = (float)-glyph.fLeft; 56482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com xform.eDy = (float)-glyph.fTop; 56582a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com SetWorldTransform(dc, &xform); 56682a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 56782a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com HGDIOBJ prevFont = SelectObject(dc, fFont); 56882a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com COLORREF color = SetTextColor(dc, isBW ? 0xFFFFFF : 0); 56982a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com SkASSERT(color != CLR_INVALID); 57082a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com uint16_t glyphID = glyph.getGlyphID(); 571c8ad63e5e42637c65c6b4e0adfacce55730b722dbsalomon@google.com#if defined(UNICODE) 57282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com ExtTextOut(dc, 0, 0, ETO_GLYPH_INDEX, NULL, (LPCWSTR)&glyphID, 1, NULL); 573c8ad63e5e42637c65c6b4e0adfacce55730b722dbsalomon@google.com#else 57482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com ExtTextOut(dc, 0, 0, ETO_GLYPH_INDEX, NULL, (LPCSTR)&glyphID, 1, NULL); 575c8ad63e5e42637c65c6b4e0adfacce55730b722dbsalomon@google.com#endif 57682a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com GdiFlush(); 57782a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 57882a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com // downsample from rgba to rgb565 57982a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com int width = glyph.fWidth; 58082a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com size_t dstRB = glyph.rowBytes(); 58182a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com if (isBW) { 58282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com const uint8_t* src = (const uint8_t*)bits; 58382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com // gdi's bitmap is upside-down, so we reverse dst walking in Y 58482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com uint8_t* dst = (uint8_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 58582a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com for (int y = 0; y < glyph.fHeight; y++) { 58682a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com memcpy(dst, src, dstRB); 58782a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com src += srcRB; 58882a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com dst -= dstRB; 589ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 59082a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com } else if (isAA) { 59182a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com const uint32_t* src = (const uint32_t*)bits; 59282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com // gdi's bitmap is upside-down, so we reverse dst walking in Y 59382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com uint8_t* dst = (uint8_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 59482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com for (int y = 0; y < glyph.fHeight; y++) { 59582a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com for (int i = 0; i < width; i++) { 59682a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com dst[i] = rgb_to_a8(src[i]); 59782a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com } 59882a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com src = (const uint32_t*)((const char*)src + srcRB); 59982a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com dst -= dstRB; 600e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com } 60182a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com } else { // LCD16 60282a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com const uint32_t* src = (const uint32_t*)bits; 60382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com // gdi's bitmap is upside-down, so we reverse dst walking in Y 60482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com uint16_t* dst = (uint16_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 60582a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com for (int y = 0; y < glyph.fHeight; y++) { 60682a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com for (int i = 0; i < width; i++) { 60782a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com dst[i] = rgb_to_lcd16(src[i]); 608ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 60982a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com src = (const uint32_t*)((const char*)src + srcRB); 61082a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com dst = (uint16_t*)((char*)dst - dstRB); 611ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 612ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 61382a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com 61482a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com DeleteDC(dc); 61582a34d83f646d069ef2d1d7b649d0a0b1829d62freed@google.com DeleteObject(bm); 616ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 617ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 618ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comvoid SkScalerContext_Windows::generatePath(const SkGlyph& glyph, SkPath* path) { 619ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 620ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkAutoMutexAcquire ac(gFTMutex); 621ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 622ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(&glyph && path); 623ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(fDDC); 624ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 625ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com path->reset(); 626ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 627ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#if 0 628ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com char buf[1024]; 629ac6b97972d3c5a8e10b79c1409818756310e0f12reed@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); 630ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com OutputDebugString(buf); 631ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#endif 632ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 633ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com GLYPHMETRICS gm; 634ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com uint32_t total_size = GetGlyphOutlineW(fDDC, glyph.fID, GGO_NATIVE | GGO_GLYPH_INDEX, &gm, BUFFERSIZE, glyphbuf, &fMat22); 635ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 636ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (GDI_ERROR != total_size) { 637ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 638ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com const uint8_t* cur_glyph = glyphbuf; 639ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com const uint8_t* end_glyph = glyphbuf + total_size; 640ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 641ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com while(cur_glyph < end_glyph) { 642ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com const TTPOLYGONHEADER* th = (TTPOLYGONHEADER*)cur_glyph; 643ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 644ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com const uint8_t* end_poly = cur_glyph + th->cb; 645ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com const uint8_t* cur_poly = cur_glyph + sizeof(TTPOLYGONHEADER); 646ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 647ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com path->moveTo(SkFixedToScalar(*(SkFixed*)(&th->pfxStart.x)), SkFixedToScalar(*(SkFixed*)(&th->pfxStart.y))); 648ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 649ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com while(cur_poly < end_poly) { 650ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com const TTPOLYCURVE* pc = (const TTPOLYCURVE*)cur_poly; 651ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 652ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (pc->wType == TT_PRIM_LINE) { 653ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com for (uint16_t i = 0; i < pc->cpfx; i++) { 654ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com path->lineTo(SkFixedToScalar(*(SkFixed*)(&pc->apfx[i].x)), SkFixedToScalar(*(SkFixed*)(&pc->apfx[i].y))); 655ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 656ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 657ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 658ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (pc->wType == TT_PRIM_QSPLINE) { 659ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com for (uint16_t u = 0; u < pc->cpfx - 1; u++) { // Walk through points in spline 660ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com POINTFX pnt_b = pc->apfx[u]; // B is always the current point 661ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com POINTFX pnt_c = pc->apfx[u+1]; 662ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 663ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (u < pc->cpfx - 2) { // If not on last spline, compute C 664ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com pnt_c.x = SkFixedToFIXED(SkFixedAve(*(SkFixed*)(&pnt_b.x), *(SkFixed*)(&pnt_c.x))); 665ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com pnt_c.y = SkFixedToFIXED(SkFixedAve(*(SkFixed*)(&pnt_b.y), *(SkFixed*)(&pnt_c.y))); 666ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 667ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 668ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com path->quadTo(SkFixedToScalar(*(SkFixed*)(&pnt_b.x)), SkFixedToScalar(*(SkFixed*)(&pnt_b.y)), SkFixedToScalar(*(SkFixed*)(&pnt_c.x)), SkFixedToScalar(*(SkFixed*)(&pnt_c.y))); 669ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 670ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 671ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com cur_poly += sizeof(uint16_t) * 2 + sizeof(POINTFX) * pc->cpfx; 672ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 673ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com cur_glyph += th->cb; 674ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com path->close(); 675ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 676ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 677ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com else { 678ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(false); 679ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 680ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com //char buf[1024]; 681ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com //sprintf(buf, "generatePath: count:%d\n", count); 682ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com //OutputDebugString(buf); 683ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 684ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 685ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comvoid SkFontHost::Serialize(const SkTypeface* face, SkWStream* stream) { 686ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(!"SkFontHost::Serialize unimplemented"); 687ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 688ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 689ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comSkTypeface* SkFontHost::Deserialize(SkStream* stream) { 690ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(!"SkFontHost::Deserialize unimplemented"); 691ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return NULL; 692ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 693ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 694ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic bool getWidthAdvance(HDC hdc, int gId, int16_t* advance) { 695ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Initialize the MAT2 structure to the identify transformation matrix. 696ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com static const MAT2 mat2 = {SkScalarToFIXED(1), SkScalarToFIXED(0), 697ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkScalarToFIXED(0), SkScalarToFIXED(1)}; 698ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int flags = GGO_METRICS | GGO_GLYPH_INDEX; 699ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com GLYPHMETRICS gm; 700ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (GDI_ERROR == GetGlyphOutline(hdc, gId, flags, &gm, 0, NULL, &mat2)) { 701ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return false; 702ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 703ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(advance); 704ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com *advance = gm.gmCellIncX; 705ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return true; 706ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 707ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 708ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com// static 709ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comSkAdvancedTypefaceMetrics* SkFontHost::GetAdvancedTypefaceMetrics( 710325cb9aa17b94258b362082eb3a799524f4345f3vandebo@chromium.org uint32_t fontID, 711325cb9aa17b94258b362082eb3a799524f4345f3vandebo@chromium.org SkAdvancedTypefaceMetrics::PerGlyphInfo perGlyphInfo) { 71259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LOGFONT lf; 71359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com GetLogFontByID(fontID, &lf); 714ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkAdvancedTypefaceMetrics* info = NULL; 715ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 716ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HDC hdc = CreateCompatibleDC(NULL); 717ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT font = CreateFontIndirect(&lf); 718ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT savefont = (HFONT)SelectObject(hdc, font); 719ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT designFont = NULL; 720ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 721ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // To request design units, create a logical font whose height is specified 722ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // as unitsPerEm. 723ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com OUTLINETEXTMETRIC otm; 724ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (!GetOutlineTextMetrics(hdc, sizeof(otm), &otm) || 725ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com !GetTextFace(hdc, LF_FACESIZE, lf.lfFaceName)) { 726ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com goto Error; 727ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 728ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com lf.lfHeight = -SkToS32(otm.otmEMSquare); 729ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com designFont = CreateFontIndirect(&lf); 730ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SelectObject(hdc, designFont); 731ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (!GetOutlineTextMetrics(hdc, sizeof(otm), &otm)) { 732ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com goto Error; 733ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 734ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com const unsigned glyphCount = calculateGlyphCount(hdc); 735ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 736ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info = new SkAdvancedTypefaceMetrics; 737ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fEmSize = otm.otmEMSquare; 738ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fMultiMaster = false; 739ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fLastGlyphID = SkToU16(glyphCount - 1); 740ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle = 0; 741ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#ifdef UNICODE 742ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Get the buffer size needed first. 743ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com size_t str_len = WideCharToMultiByte(CP_UTF8, 0, lf.lfFaceName, -1, NULL, 744ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 0, NULL, NULL); 745ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Allocate a buffer (str_len already has terminating null accounted for). 746ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com char *familyName = new char[str_len]; 747ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Now actually convert the string. 748ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com WideCharToMultiByte(CP_UTF8, 0, lf.lfFaceName, -1, familyName, str_len, 749ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com NULL, NULL); 750ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fFontName.set(familyName); 751ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com delete [] familyName; 752ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#else 753ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fFontName.set(lf.lfFaceName); 754ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#endif 755ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 7566744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org if (perGlyphInfo & SkAdvancedTypefaceMetrics::kToUnicode_PerGlyphInfo) { 7576744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org populate_glyph_to_unicode(hdc, glyphCount, &(info->fGlyphToUnicode)); 7586744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 7596744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 760ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (otm.otmTextMetrics.tmPitchAndFamily & TMPF_TRUETYPE) { 761ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fType = SkAdvancedTypefaceMetrics::kTrueType_Font; 762ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 763ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fType = SkAdvancedTypefaceMetrics::kOther_Font; 764ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fItalicAngle = 0; 765ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fAscent = 0; 766ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fDescent = 0; 767ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStemV = 0; 768ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fCapHeight = 0; 769ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fBBox = SkIRect::MakeEmpty(); 770ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return info; 771ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 7725aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org 773ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // If this bit is clear the font is a fixed pitch font. 774ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (!(otm.otmTextMetrics.tmPitchAndFamily & TMPF_FIXED_PITCH)) { 775ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kFixedPitch_Style; 776ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 777ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (otm.otmTextMetrics.tmItalic) { 778ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kItalic_Style; 779ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 780ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Setting symbolic style by default for now. 781ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kSymbolic_Style; 782ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (otm.otmTextMetrics.tmPitchAndFamily & FF_ROMAN) { 783ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kSerif_Style; 784ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else if (otm.otmTextMetrics.tmPitchAndFamily & FF_SCRIPT) { 785ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kScript_Style; 786ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 787ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 788ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // The main italic angle of the font, in tenths of a degree counterclockwise 789ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // from vertical. 790ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fItalicAngle = otm.otmItalicAngle / 10; 791ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fAscent = SkToS16(otm.otmTextMetrics.tmAscent); 792ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fDescent = SkToS16(-otm.otmTextMetrics.tmDescent); 793ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // TODO(ctguil): Use alternate cap height calculation. 794ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // MSDN says otmsCapEmHeight is not support but it is returning a value on 795ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // my Win7 box. 796ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fCapHeight = otm.otmsCapEmHeight; 797ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fBBox = 798ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkIRect::MakeLTRB(otm.otmrcFontBox.left, otm.otmrcFontBox.top, 799ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com otm.otmrcFontBox.right, otm.otmrcFontBox.bottom); 800ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 801ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Figure out a good guess for StemV - Min width of i, I, !, 1. 802ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // This probably isn't very good with an italic font. 803ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int16_t min_width = SHRT_MAX; 804ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStemV = 0; 805ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com char stem_chars[] = {'i', 'I', '!', '1'}; 806ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com for (size_t i = 0; i < SK_ARRAY_COUNT(stem_chars); i++) { 807ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ABC abcWidths; 808ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (GetCharABCWidths(hdc, stem_chars[i], stem_chars[i], &abcWidths)) { 809ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int16_t width = abcWidths.abcB; 810ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (width > 0 && width < min_width) { 811ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com min_width = width; 812ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStemV = min_width; 813ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 814ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 815ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 816ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 817ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // If bit 1 is set, the font may not be embedded in a document. 818ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // If bit 1 is clear, the font can be embedded. 819ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // If bit 2 is set, the embedding is read-only. 820ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (otm.otmfsType & 0x1) { 821ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fType = SkAdvancedTypefaceMetrics::kNotEmbeddable_Font; 8220e6dc0a320985ffd31f77eed8a41e62132b9ba95ctguil@chromium.org } else if (perGlyphInfo & 8230e6dc0a320985ffd31f77eed8a41e62132b9ba95ctguil@chromium.org SkAdvancedTypefaceMetrics::kHAdvance_PerGlyphInfo) { 8245aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org if (info->fStyle & SkAdvancedTypefaceMetrics::kFixedPitch_Style) { 8255aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org appendRange(&info->fGlyphWidths, 0); 8265aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org info->fGlyphWidths->fAdvance.append(1, &min_width); 8275aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org finishRange(info->fGlyphWidths.get(), 0, 8285aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org SkAdvancedTypefaceMetrics::WidthRange::kDefault); 8295aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org } else { 8305aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org info->fGlyphWidths.reset( 8315aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org getAdvanceData(hdc, glyphCount, &getWidthAdvance)); 8325aa937b300475c956bfad0c34a6daa71d166f6factguil@chromium.org } 833ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 834ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 835ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comError: 836ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SelectObject(hdc, savefont); 837ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteObject(designFont); 838ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteObject(font); 839ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteDC(hdc); 840ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 841ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return info; 842ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 843ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 844ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comSkTypeface* SkFontHost::CreateTypefaceFromStream(SkStream* stream) { 845ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 846ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com //Should not be used on Windows, keep linker happy 847ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(false); 848ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkCreateTypefaceFromLOGFONT(get_default_font()); 849ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 850ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 851ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comSkStream* SkFontHost::OpenStream(SkFontID uniqueID) { 852f4c2622a1a3489988f2d85a81fdc132b17a92bddctguil@chromium.org const DWORD kTTCTag = 853f4c2622a1a3489988f2d85a81fdc132b17a92bddctguil@chromium.org SkEndian_SwapBE32(SkSetFourByteTag('t', 't', 'c', 'f')); 85459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LOGFONT lf; 85559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com GetLogFontByID(uniqueID, &lf); 856ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 857ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HDC hdc = ::CreateCompatibleDC(NULL); 85859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com HFONT font = CreateFontIndirect(&lf); 859ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT savefont = (HFONT)SelectObject(hdc, font); 860ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 861d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org SkMemoryStream* stream = NULL; 862d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org DWORD tables[2] = {kTTCTag, 0}; 863d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org for (int i = 0; i < SK_ARRAY_COUNT(tables); i++) { 864d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org size_t bufferSize = GetFontData(hdc, tables[i], 0, NULL, 0); 865d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org if (bufferSize != GDI_ERROR) { 866d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org stream = new SkMemoryStream(bufferSize); 867d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org if (GetFontData(hdc, tables[i], 0, (void*)stream->getMemoryBase(), 868d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org bufferSize)) { 869d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org break; 870d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org } else { 871d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org delete stream; 872d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org stream = NULL; 873d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org } 874d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org } 875ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 876ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 877ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SelectObject(hdc, savefont); 878ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteObject(font); 879ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteDC(hdc); 880ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 881ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return stream; 882ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 883ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 884ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comSkScalerContext* SkFontHost::CreateScalerContext(const SkDescriptor* desc) { 885ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkNEW_ARGS(SkScalerContext_Windows, (desc)); 886ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 887ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 888ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com/** Return the closest matching typeface given either an existing family 889ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com (specified by a typeface in that family) or by a familyName, and a 890ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com requested style. 891ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1) If familyFace is null, use famillyName. 892ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 2) If famillyName is null, use familyFace. 893ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 3) If both are null, return the default font that best matches style 894ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com This MUST not return NULL. 895ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com */ 896ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 897ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comSkTypeface* SkFontHost::CreateTypeface(const SkTypeface* familyFace, 898ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com const char familyName[], 899ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com const void* data, size_t bytelength, 900ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkTypeface::Style style) { 90159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LOGFONT lf; 902ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (NULL == familyFace && NULL == familyName) { 90359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf = get_default_font(); 90459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } else if (familyFace) { 90559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LogFontTypeface* face = (LogFontTypeface*)familyFace; 90659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf = face->fLogFont; 907ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 90859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com memset(&lf, 0, sizeof(LOGFONT)); 909ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#ifdef UNICODE 91059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com // Get the buffer size needed first. 91159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com size_t str_len = ::MultiByteToWideChar(CP_UTF8, 0, familyName, 91259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com -1, NULL, 0); 91359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com // Allocate a buffer (str_len already has terminating null 91459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com // accounted for). 91559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com wchar_t *wideFamilyName = new wchar_t[str_len]; 91659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com // Now actually convert the string. 91759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com ::MultiByteToWideChar(CP_UTF8, 0, familyName, -1, 91859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com wideFamilyName, str_len); 91959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com ::wcsncpy(lf.lfFaceName, wideFamilyName, LF_FACESIZE); 92059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com delete [] wideFamilyName; 921ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#else 92259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com ::strncpy(lf.lfFaceName, familyName, LF_FACESIZE); 923ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#endif 92459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf.lfFaceName[LF_FACESIZE-1] = '\0'; 925ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 92659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com setStyle(&lf, style); 92759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com return SkCreateTypefaceFromLOGFONT(lf); 928ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 929ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 930ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comsize_t SkFontHost::ShouldPurgeFontCache(size_t sizeAllocatedSoFar) { 931ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (sizeAllocatedSoFar > FONT_CACHE_MEMORY_BUDGET) 932ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return sizeAllocatedSoFar - FONT_CACHE_MEMORY_BUDGET; 933ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com else 934ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return 0; // nothing to do 935ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 936ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 937ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comint SkFontHost::ComputeGammaFlag(const SkPaint& paint) { 938ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return 0; 939ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 940ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 941ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comvoid SkFontHost::GetGammaTables(const uint8_t* tables[2]) { 942ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com tables[0] = NULL; // black gamma (e.g. exp=1.4) 943ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com tables[1] = NULL; // white gamma (e.g. exp= 1/1.4) 944ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 945ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 946ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comSkTypeface* SkFontHost::CreateTypefaceFromFile(const char path[]) { 947ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com printf("SkFontHost::CreateTypefaceFromFile unimplemented"); 948ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return NULL; 949ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 950ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 951da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.comstatic bool bothZero(SkScalar a, SkScalar b) { 952da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com return 0 == a && 0 == b; 953da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com} 954da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com 955da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com// returns false if there is any non-90-rotation or skew 956da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.comstatic bool isAxisAligned(const SkScalerContext::Rec& rec) { 957da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com return 0 == rec.fPreSkewX && 958da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com (bothZero(rec.fPost2x2[0][1], rec.fPost2x2[1][0]) || 959da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com bothZero(rec.fPost2x2[0][0], rec.fPost2x2[1][1])); 960da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com} 961da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com 962ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comvoid SkFontHost::FilterRec(SkScalerContext::Rec* rec) { 963e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com unsigned flagsWeDontSupport = SkScalerContext::kDevKernText_Flag | 964e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kAutohinting_Flag | 965e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kEmbeddedBitmapText_Flag | 966e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kEmbolden_Flag | 967e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kLCD_BGROrder_Flag | 968e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kLCD_Vertical_Flag; 969e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com rec->fFlags &= ~flagsWeDontSupport; 970e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com 971e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkPaint::Hinting h = rec->getHinting(); 972da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com 973da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com // I think we can support no-hinting, if we get hires outlines and just 974da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com // use skia to rasterize into a gray-scale mask... 975da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com#if 0 976e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com switch (h) { 977e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kNo_Hinting: 978e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kSlight_Hinting: 979e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com h = SkPaint::kNo_Hinting; 980e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com break; 981e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kNormal_Hinting: 982e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kFull_Hinting: 983e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com h = SkPaint::kNormal_Hinting; 984e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com break; 985e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com default: 986e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkASSERT(!"unknown hinting"); 987e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com } 988da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com#else 989da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com h = SkPaint::kNormal_Hinting; 990da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com#endif 991e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com rec->setHinting(h); 992da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com 993da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com // Disable LCD when rotated, since GDI's output is ugly 994da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com if (isLCD(*rec) && !isAxisAligned(*rec)) { 995da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com rec->fMaskFormat = SkMask::kA8_Format; 996da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com } 997ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 998ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 999ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#endif // WIN32 1000