SkFontHost_win.cpp revision db77a6a9a9bef7033aca9dffa99d52be1f51f8d9
1ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com/* 2ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ** Copyright 2006, The Android Open Source Project 3ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ** 4ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ** Licensed under the Apache License, Version 2.0 (the "License"); 5ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ** you may not use this file except in compliance with the License. 6ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ** You may obtain a copy of the License at 7ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ** 8ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ** http://www.apache.org/licenses/LICENSE-2.0 9ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ** 10ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ** Unless required by applicable law or agreed to in writing, software 11ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ** distributed under the License is distributed on an "AS IS" BASIS, 12ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ** See the License for the specific language governing permissions and 14ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ** limitations under the License. 15ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com */ 16ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 17ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkString.h" 18ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkEndian.h" 19ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkFontHost.h" 20ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkDescriptor.h" 21ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkAdvancedTypefaceMetrics.h" 22ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkStream.h" 23ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkThread.h" 24ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkTypeface_win.h" 2559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com#include "SkTypefaceCache.h" 26ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkUtils.h" 27ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 28ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#ifdef WIN32 29ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "windows.h" 30ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "tchar.h" 31ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "Usp10.h" 32ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 33ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com// client3d has to undefine this for now 34ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#define CAN_USE_LOGFONT_NAME 35ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 36ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comusing namespace skia_advanced_typeface_metrics_utils; 37ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 38ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic const uint16_t BUFFERSIZE = (16384 - 32); 39ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic uint8_t glyphbuf[BUFFERSIZE]; 40ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 41ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com// Give 1MB font cache budget 42ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#define FONT_CACHE_MEMORY_BUDGET (1024 * 1024) 43ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 44ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com/** 45ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com * Since LOGFONT wants its textsize as an int, and we support fractional sizes, 46ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com * and since we have a cache of LOGFONTs for our tyepfaces, we always set the 47ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com * lfHeight to a canonical size, and then we use the 2x2 matrix to achieve the 48ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com * actual requested size. 49ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com */ 50ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic const int gCanonicalTextSize = 64; 51ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 52ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic void make_canonical(LOGFONT* lf) { 53ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com lf->lfHeight = -gCanonicalTextSize; 5459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf->lfQuality = CLEARTYPE_QUALITY;//PROOF_QUALITY; 5559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf->lfCharSet = DEFAULT_CHARSET; 5659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com} 5759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 5859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.comstatic SkTypeface::Style getStyle(const LOGFONT& lf) { 5959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com unsigned style = 0; 6059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com if (lf.lfWeight >= FW_BOLD) { 6159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com style |= SkTypeface::kBold; 6259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } 6359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com if (lf.lfItalic) { 6459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com style |= SkTypeface::kItalic; 6559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } 6659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com return (SkTypeface::Style)style; 6759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com} 6859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 6959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.comstatic void setStyle(LOGFONT* lf, SkTypeface::Style style) { 7059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf->lfWeight = (style & SkTypeface::kBold) != 0 ? FW_BOLD : FW_NORMAL ; 7159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf->lfItalic = ((style & SkTypeface::kItalic) != 0); 72ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 73ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 74ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic inline FIXED SkFixedToFIXED(SkFixed x) { 75ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return *(FIXED*)(&x); 76ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 77ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 78ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic inline FIXED SkScalarToFIXED(SkScalar x) { 79ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkFixedToFIXED(SkScalarToFixed(x)); 80ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 81ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 82ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic unsigned calculateGlyphCount(HDC hdc) { 83ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // The 'maxp' table stores the number of glyphs at offset 4, in 2 bytes. 84f4c2622a1a3489988f2d85a81fdc132b17a92bddctguil@chromium.org const DWORD maxpTag = 85f4c2622a1a3489988f2d85a81fdc132b17a92bddctguil@chromium.org SkEndian_SwapBE32(SkSetFourByteTag('m', 'a', 'x', 'p')); 86ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com uint16_t glyphs; 87ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (GetFontData(hdc, maxpTag, 4, &glyphs, sizeof(glyphs)) != GDI_ERROR) { 88ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkEndian_SwapBE16(glyphs); 89ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 90ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 91ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Binary search for glyph count. 92ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com static const MAT2 mat2 = {{0, 1}, {0, 0}, {0, 0}, {0, 1}}; 93ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int32_t max = SK_MaxU16 + 1; 94ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int32_t min = 0; 95ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com GLYPHMETRICS gm; 96ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com while (min < max) { 97ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int32_t mid = min + ((max - min) / 2); 98ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (GetGlyphOutlineW(hdc, mid, GGO_METRICS | GGO_GLYPH_INDEX, &gm, 0, 99ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com NULL, &mat2) == GDI_ERROR) { 100ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com max = mid; 101ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 102ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com min = mid + 1; 103ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 104ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 105ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(min == max); 106ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return min; 107ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 108ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 109ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic SkTypeface::Style GetFontStyle(const LOGFONT& lf) { 110ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int style = SkTypeface::kNormal; 111ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (lf.lfWeight == FW_SEMIBOLD || lf.lfWeight == FW_DEMIBOLD || lf.lfWeight == FW_BOLD) 112ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com style |= SkTypeface::kBold; 113ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (lf.lfItalic) 114ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com style |= SkTypeface::kItalic; 115ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 116ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return (SkTypeface::Style)style; 117ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 118ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 119ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comclass LogFontTypeface : public SkTypeface { 120ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.compublic: 12159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LogFontTypeface(SkTypeface::Style style, SkFontID fontID, const LOGFONT& lf) : 12259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com SkTypeface(style, fontID, false), fLogFont(lf) {} 123ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 12459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LOGFONT fLogFont; 125ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 12659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com static LogFontTypeface* Create(const LOGFONT& lf) { 12759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com SkTypeface::Style style = GetFontStyle(lf); 12859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com SkFontID fontID = SkTypefaceCache::NewFontID(); 12959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com return new LogFontTypeface(style, fontID, lf); 130ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 131ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com}; 132ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 133ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic const LOGFONT& get_default_font() { 134ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com static LOGFONT gDefaultFont; 135ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return gDefaultFont; 136ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 137ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 13859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.comstatic bool FindByLogFont(SkTypeface* face, SkTypeface::Style requestedStyle, void* ctx) { 13959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LogFontTypeface* lface = reinterpret_cast<LogFontTypeface*>(face); 14059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com const LOGFONT* lf = reinterpret_cast<const LOGFONT*>(ctx); 141ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 14259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com return getStyle(lface->fLogFont) == requestedStyle && 14359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com !memcmp(&lface->fLogFont, lf, sizeof(LOGFONT)); 14459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com} 14559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 14659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com/** 14759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com * This guy is public. It first searches the cache, and if a match is not found, 14859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com * it creates a new face. 14959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com */ 15059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.comSkTypeface* SkCreateTypefaceFromLOGFONT(const LOGFONT& origLF) { 15159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LOGFONT lf = origLF; 15259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com make_canonical(&lf); 15359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com SkTypeface* face = SkTypefaceCache::FindByProc(FindByLogFont, &lf); 15459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com if (face) { 15559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com face->ref(); 156ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 15759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com face = LogFontTypeface::Create(lf); 15859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com SkTypefaceCache::Add(face, getStyle(lf)); 15959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } 16059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com return face; 161ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 162ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 163db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com/** 164db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com * This guy is public 165db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com */ 166db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.comvoid SkLOGFONTFromTypeface(const SkTypeface* face, LOGFONT* lf) { 167db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com if (NULL == face) { 168db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com *lf = get_default_font(); 169db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com } else { 170db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com *lf = ((const LogFontTypeface*)face)->fLogFont; 171db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com } 172db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com} 173db77a6a9a9bef7033aca9dffa99d52be1f51f8d9reed@google.com 1747d26c590f6bc431a5ecf5c25619b64d058613a4dreed@google.comSkFontID SkFontHost::NextLogicalFont(SkFontID currFontID, SkFontID origFontID) { 175ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Zero means that we don't have any fallback fonts for this fontID. 176ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // This function is implemented on Android, but doesn't have much 177ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // meaning here. 178ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return 0; 179ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 180ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 18159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.comstatic void GetLogFontByID(SkFontID fontID, LOGFONT* lf) { 18259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LogFontTypeface* face = (LogFontTypeface*)SkTypefaceCache::FindByID(fontID); 18359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com if (face) { 18459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com *lf = face->fLogFont; 18559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } else { 18659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com sk_bzero(lf, sizeof(LOGFONT)); 18759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } 18859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com} 18959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 1906744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// Construct Glyph to Unicode table. 1916744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// Unicode code points that require conjugate pairs in utf16 are not 1926744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// supported. 1936744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// TODO(arthurhsu): Add support for conjugate pairs. It looks like that may 1946744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// require parsing the TTF cmap table (platform 4, encoding 12) directly instead 1956744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org// of calling GetFontUnicodeRange(). 1966744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.orgstatic void populate_glyph_to_unicode(HDC fontHdc, const unsigned glyphCount, 1976744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkTDArray<SkUnichar>* glyphToUnicode) { 1986744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org DWORD glyphSetBufferSize = GetFontUnicodeRanges(fontHdc, NULL); 1996744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org if (!glyphSetBufferSize) { 2006744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org return; 2016744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 2026744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 2036744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkAutoTDeleteArray<BYTE> glyphSetBuffer(new BYTE[glyphSetBufferSize]); 2046744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org GLYPHSET* glyphSet = 2056744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org reinterpret_cast<LPGLYPHSET>(glyphSetBuffer.get()); 2066744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org if (GetFontUnicodeRanges(fontHdc, glyphSet) != glyphSetBufferSize) { 2076744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org return; 2086744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 2096744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 2106744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org glyphToUnicode->setCount(glyphCount); 2116744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org memset(glyphToUnicode->begin(), 0, glyphCount * sizeof(SkUnichar)); 2126744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org for (DWORD i = 0; i < glyphSet->cRanges; ++i) { 2136744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // There is no guarantee that within a Unicode range, the corresponding 2146744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // glyph id in a font file are continuous. So, even if we have ranges, 2156744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // we can't just use the first and last entry of the range to compute 2166744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // result. We need to enumerate them one by one. 2176744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org int count = glyphSet->ranges[i].cGlyphs; 2186744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkAutoTArray<WCHAR> chars(count + 1); 2196744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org chars[count] = 0; // termintate string 2206744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org SkAutoTArray<WORD> glyph(count); 2216744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org for (USHORT j = 0; j < count; ++j) { 2226744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org chars[j] = glyphSet->ranges[i].wcLow + j; 2236744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 2246744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org GetGlyphIndicesW(fontHdc, chars.get(), count, glyph.get(), 2256744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org GGI_MARK_NONEXISTING_GLYPHS); 2266744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // If the glyph ID is valid, and the glyph is not mapped, then we will 2276744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // fill in the char id into the vector. If the glyph is mapped already, 2286744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // skip it. 2296744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // TODO(arthurhsu): better improve this. e.g. Get all used char ids from 2306744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // font cache, then generate this mapping table from there. It's 2316744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // unlikely to have collisions since glyph reuse happens mostly for 2326744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org // different Unicode pages. 2336744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org for (USHORT j = 0; j < count; ++j) { 2346744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org if (glyph[j] != 0xffff && glyph[j] < glyphCount && 2356744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org (*glyphToUnicode)[glyph[j]] == 0) { 2366744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org (*glyphToUnicode)[glyph[j]] = chars[j]; 2376744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 2386744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 2396744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 2406744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org} 2416744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 24259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com////////////////////////////////////////////////////////////////////////////////////////////// 24359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 244ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comclass SkScalerContext_Windows : public SkScalerContext { 245ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.compublic: 246ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkScalerContext_Windows(const SkDescriptor* desc); 247ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com virtual ~SkScalerContext_Windows(); 248ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 249ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comprotected: 250ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com virtual unsigned generateGlyphCount(); 251ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com virtual uint16_t generateCharToGlyph(SkUnichar uni); 252ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com virtual void generateAdvance(SkGlyph* glyph); 253ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com virtual void generateMetrics(SkGlyph* glyph); 254ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com virtual void generateImage(const SkGlyph& glyph); 255ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com virtual void generatePath(const SkGlyph& glyph, SkPath* path); 256ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com virtual void generateFontMetrics(SkPaint::FontMetrics* mX, SkPaint::FontMetrics* mY); 257ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com //virtual SkDeviceContext getDC() {return ddc;} 258ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comprivate: 259ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkScalar fScale; // to get from canonical size to real size 260ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com MAT2 fMat22; 261ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com XFORM fXform; 262ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HDC fDDC; 263ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT fSavefont; 264ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT fFont; 265ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SCRIPT_CACHE fSC; 266ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int fGlyphCount; 2671dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 2681dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com HFONT fHiResFont; 2691dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com MAT2 fMat22Identity; 2701dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com SkMatrix fHiResMatrix; 271ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com}; 272ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 273ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic float mul2float(SkScalar a, SkScalar b) { 274ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkScalarToFloat(SkScalarMul(a, b)); 275ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 276ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 277ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic FIXED float2FIXED(float x) { 278ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkFixedToFIXED(SkFloatToFixed(x)); 279ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 280ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 28159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.comstatic SkMutex gFTMutex; 28259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com 2831dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com#define HIRES_TEXTSIZE 2048 2841dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com#define HIRES_SHIFT 11 2851dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.comstatic inline SkFixed HiResToFixed(int value) { 2861dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com return value << (16 - HIRES_SHIFT); 2871dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com} 2881dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 2891dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.comstatic bool needHiResMetrics(const SkScalar mat[2][2]) { 2901dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com return mat[1][0] || mat[0][1]; 2911dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com} 2921dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 293ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comSkScalerContext_Windows::SkScalerContext_Windows(const SkDescriptor* desc) 294ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com : SkScalerContext(desc), fDDC(0), fFont(0), fSavefont(0), fSC(0) 295ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com , fGlyphCount(-1) { 296ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkAutoMutexAcquire ac(gFTMutex); 297ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 298ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fScale = fRec.fTextSize / gCanonicalTextSize; 299ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 300ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fXform.eM11 = mul2float(fScale, fRec.fPost2x2[0][0]); 301ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fXform.eM12 = mul2float(fScale, fRec.fPost2x2[1][0]); 302ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fXform.eM21 = mul2float(fScale, fRec.fPost2x2[0][1]); 303ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fXform.eM22 = mul2float(fScale, fRec.fPost2x2[1][1]); 304ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fXform.eDx = 0; 305ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fXform.eDy = 0; 306ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 307ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fMat22.eM11 = float2FIXED(fXform.eM11); 308ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fMat22.eM12 = float2FIXED(fXform.eM12); 309ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fMat22.eM21 = float2FIXED(-fXform.eM21); 310ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fMat22.eM22 = float2FIXED(-fXform.eM22); 311ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 312ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fDDC = ::CreateCompatibleDC(NULL); 3131dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com SetGraphicsMode(fDDC, GM_ADVANCED); 314ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SetBkMode(fDDC, TRANSPARENT); 315ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 316ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Scaling by the DPI is inconsistent with how Skia draws elsewhere 317ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com //SkScalar height = -(fRec.fTextSize * GetDeviceCaps(ddc, LOGPIXELSY) / 72); 31859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LOGFONT lf; 31959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com GetLogFontByID(fRec.fFontID, &lf); 320ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com lf.lfHeight = -gCanonicalTextSize; 321ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fFont = CreateFontIndirect(&lf); 3221dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 3231dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com // if we're rotated, or want fractional widths, create a hires font 3241dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com fHiResFont = 0; 3251dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com if (needHiResMetrics(fRec.fPost2x2) || (fRec.fFlags & kSubpixelPositioning_Flag)) { 3261dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com lf.lfHeight = -HIRES_TEXTSIZE; 3271dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com fHiResFont = CreateFontIndirect(&lf); 3281dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 3291dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com fMat22Identity.eM11 = fMat22Identity.eM22 = SkFixedToFIXED(SK_Fixed1); 3301dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com fMat22Identity.eM12 = fMat22Identity.eM21 = SkFixedToFIXED(0); 3311dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 3321dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com // construct a matrix to go from HIRES logical units to our device units 3331dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com fRec.getSingleMatrix(&fHiResMatrix); 3341dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com SkScalar scale = SkScalarInvert(SkIntToScalar(HIRES_TEXTSIZE)); 3351dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com fHiResMatrix.preScale(scale, scale); 3361dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com } 337ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fSavefont = (HFONT)SelectObject(fDDC, fFont); 338ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 339ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 340ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comSkScalerContext_Windows::~SkScalerContext_Windows() { 341ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fDDC) { 342ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::SelectObject(fDDC, fSavefont); 343ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::DeleteDC(fDDC); 344ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 345ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fFont) { 346ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::DeleteObject(fFont); 347ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 3481dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com if (fHiResFont) { 3491dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com ::DeleteObject(fHiResFont); 3501dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com } 351ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fSC) { 352ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ::ScriptFreeCache(&fSC); 353ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 354ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 355ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 356ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comunsigned SkScalerContext_Windows::generateGlyphCount() { 357ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (fGlyphCount < 0) { 358ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fGlyphCount = calculateGlyphCount(fDDC); 359ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 360ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return fGlyphCount; 361ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 362ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 363ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comuint16_t SkScalerContext_Windows::generateCharToGlyph(SkUnichar uni) { 364ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com uint16_t index = 0; 365ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com WCHAR c[2]; 366ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // TODO(ctguil): Support characters that generate more than one glyph. 367ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (SkUTF16_FromUnichar(uni, (uint16_t*)c) == 1) { 368ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Type1 fonts fail with uniscribe API. Use GetGlyphIndices for plane 0. 369ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkAssertResult(GetGlyphIndicesW(fDDC, c, 1, &index, 0)); 370ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 371ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Use uniscribe to detemine glyph index for non-BMP characters. 372ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Need to add extra item to SCRIPT_ITEM to work around a bug in older 373ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // windows versions. https://bugzilla.mozilla.org/show_bug.cgi?id=366643 374ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SCRIPT_ITEM si[2 + 1]; 375ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int items; 376ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkAssertResult( 377ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SUCCEEDED(ScriptItemize(c, 2, 2, NULL, NULL, si, &items))); 378ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 379ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com WORD log[2]; 380ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SCRIPT_VISATTR vsa; 381ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int glyphs; 382ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkAssertResult(SUCCEEDED(ScriptShape( 383ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com fDDC, &fSC, c, 2, 1, &si[0].a, &index, log, &vsa, &glyphs))); 384ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 385ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return index; 386ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 387ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 388ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comvoid SkScalerContext_Windows::generateAdvance(SkGlyph* glyph) { 389ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com this->generateMetrics(glyph); 390ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 391ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 392ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comvoid SkScalerContext_Windows::generateMetrics(SkGlyph* glyph) { 393ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 394ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(fDDC); 395ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 396ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com GLYPHMETRICS gm; 3971dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com sk_bzero(&gm, sizeof(gm)); 398ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 399ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com glyph->fRsbDelta = 0; 400ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com glyph->fLsbDelta = 0; 401ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 402ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Note: need to use GGO_GRAY8_BITMAP instead of GGO_METRICS because GGO_METRICS returns a smaller 403ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // BlackBlox; we need the bigger one in case we need the image. fAdvance is the same. 404ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com uint32_t ret = GetGlyphOutlineW(fDDC, glyph->getGlyphID(0), GGO_GRAY8_BITMAP | GGO_GLYPH_INDEX, &gm, 0, NULL, &fMat22); 405ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 406ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (GDI_ERROR != ret) { 407ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (ret == 0) { 408ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // for white space, ret is zero and gmBlackBoxX, gmBlackBoxY are 1 incorrectly! 409ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com gm.gmBlackBoxX = gm.gmBlackBoxY = 0; 410ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 411ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com glyph->fWidth = gm.gmBlackBoxX; 412ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com glyph->fHeight = gm.gmBlackBoxY; 413ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com glyph->fTop = SkToS16(gm.gmptGlyphOrigin.y - gm.gmBlackBoxY); 414ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com glyph->fLeft = SkToS16(gm.gmptGlyphOrigin.x); 415ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com glyph->fAdvanceX = SkIntToFixed(gm.gmCellIncX); 416ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com glyph->fAdvanceY = -SkIntToFixed(gm.gmCellIncY); 417ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 418ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // we outset by 1 in all dimensions, since the lcd image may bleed outside 419ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // of the computed bounds returned by GetGlyphOutline. 420ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // This was deduced by trial and error for small text (e.g. 8pt), so there 421ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // maybe a more precise way to make this adjustment... 422ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (SkMask::kLCD16_Format == fRec.fMaskFormat) { 423ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com glyph->fWidth += 2; 424ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com glyph->fHeight += 2; 425ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com glyph->fTop -= 1; 426ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com glyph->fLeft -= 1; 427ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 4281dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com 4291dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com if (fHiResFont) { 4301dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com SelectObject(fDDC, fHiResFont); 4311dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com sk_bzero(&gm, sizeof(gm)); 4321dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com ret = GetGlyphOutlineW(fDDC, glyph->getGlyphID(0), GGO_METRICS | GGO_GLYPH_INDEX, &gm, 0, NULL, &fMat22Identity); 4331dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com if (GDI_ERROR != ret) { 4341dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com SkPoint advance; 4351dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com fHiResMatrix.mapXY(SkIntToScalar(gm.gmCellIncX), SkIntToScalar(gm.gmCellIncY), &advance); 4361dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com glyph->fAdvanceX = SkScalarToFixed(advance.fX); 4371dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com glyph->fAdvanceY = SkScalarToFixed(advance.fY); 4381dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com } 4391dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com SelectObject(fDDC, fFont); 4401dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com } 441ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 442ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com glyph->fWidth = 0; 443ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 444ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 445ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 446ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comvoid SkScalerContext_Windows::generateFontMetrics(SkPaint::FontMetrics* mx, SkPaint::FontMetrics* my) { 447ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com// Note: This code was borrowed from generateLineHeight, which has a note 448ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com// stating that it may be incorrect. 449ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (!(mx || my)) 450ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return; 451ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 452ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(fDDC); 453ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 454ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com OUTLINETEXTMETRIC otm; 455ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 456ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com uint32_t ret = GetOutlineTextMetrics(fDDC, sizeof(otm), &otm); 457ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (sizeof(otm) != ret) { 458ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return; 459ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 460ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 461ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (mx) { 462ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com mx->fTop = -fScale * otm.otmTextMetrics.tmAscent; 463ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com mx->fAscent = -fScale * otm.otmAscent; 464ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com mx->fDescent = -fScale * otm.otmDescent; 465ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com mx->fBottom = fScale * otm.otmTextMetrics.tmDescent; 466ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com mx->fLeading = fScale * (otm.otmTextMetrics.tmInternalLeading 467ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com + otm.otmTextMetrics.tmExternalLeading); 468ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 469ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 470ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (my) { 471ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com my->fTop = -fScale * otm.otmTextMetrics.tmAscent; 472ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com my->fAscent = -fScale * otm.otmAscent; 473ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com my->fDescent = -fScale * otm.otmDescent; 474ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com my->fBottom = fScale * otm.otmTextMetrics.tmDescent; 475ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com my->fLeading = fScale * (otm.otmTextMetrics.tmInternalLeading 476ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com + otm.otmTextMetrics.tmExternalLeading); 477ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 478ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 479ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 480ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#include "SkColorPriv.h" 481ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 482ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic inline uint16_t rgb_to_lcd16(uint32_t rgb) { 483ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int r = (rgb >> 16) & 0xFF; 484ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int g = (rgb >> 8) & 0xFF; 485ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int b = (rgb >> 0) & 0xFF; 486ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 487ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // invert, since we draw black-on-white, but we want the original 488ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // src mask values. 489ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com r = 255 - r; 490ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com g = 255 - g; 491ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com b = 255 - b; 492ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkPackRGB16(SkR32ToR16(r), SkG32ToG16(g), SkB32ToB16(b)); 493ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 494ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 4956271117d826098c1399cf7442f8eea2d665cb78areed@google.comstatic int alignTo32(int n) { 4966271117d826098c1399cf7442f8eea2d665cb78areed@google.com return (n + 31) & ~31; 4976271117d826098c1399cf7442f8eea2d665cb78areed@google.com} 4986271117d826098c1399cf7442f8eea2d665cb78areed@google.com 4996271117d826098c1399cf7442f8eea2d665cb78areed@google.comstruct MyBitmapInfo : public BITMAPINFO { 5006271117d826098c1399cf7442f8eea2d665cb78areed@google.com RGBQUAD fMoreSpaceForColors[1]; 5016271117d826098c1399cf7442f8eea2d665cb78areed@google.com}; 5026271117d826098c1399cf7442f8eea2d665cb78areed@google.com 503ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comvoid SkScalerContext_Windows::generateImage(const SkGlyph& glyph) { 504ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 505ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkAutoMutexAcquire ac(gFTMutex); 506ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 507ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(fDDC); 508ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 5096271117d826098c1399cf7442f8eea2d665cb78areed@google.com const bool isBW = SkMask::kBW_Format == fRec.fMaskFormat; 5106271117d826098c1399cf7442f8eea2d665cb78areed@google.com if ((SkMask::kLCD16_Format == fRec.fMaskFormat) || isBW) { 511ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HDC dc = CreateCompatibleDC(0); 512ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com void* bits = 0; 5136271117d826098c1399cf7442f8eea2d665cb78areed@google.com int biWidth = isBW ? alignTo32(glyph.fWidth) : glyph.fWidth; 5146271117d826098c1399cf7442f8eea2d665cb78areed@google.com MyBitmapInfo info; 515ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com sk_bzero(&info, sizeof(info)); 5166271117d826098c1399cf7442f8eea2d665cb78areed@google.com if (isBW) { 5176271117d826098c1399cf7442f8eea2d665cb78areed@google.com RGBQUAD blackQuad = { 0, 0, 0, 0 }; 5186271117d826098c1399cf7442f8eea2d665cb78areed@google.com RGBQUAD whiteQuad = { 0xFF, 0xFF, 0xFF, 0 }; 5196271117d826098c1399cf7442f8eea2d665cb78areed@google.com info.bmiColors[0] = blackQuad; 5206271117d826098c1399cf7442f8eea2d665cb78areed@google.com info.bmiColors[1] = whiteQuad; 5216271117d826098c1399cf7442f8eea2d665cb78areed@google.com } 522ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info.bmiHeader.biSize = sizeof(info.bmiHeader); 5236271117d826098c1399cf7442f8eea2d665cb78areed@google.com info.bmiHeader.biWidth = biWidth; 524ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info.bmiHeader.biHeight = glyph.fHeight; 525ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info.bmiHeader.biPlanes = 1; 5266271117d826098c1399cf7442f8eea2d665cb78areed@google.com info.bmiHeader.biBitCount = isBW ? 1 : 32; 527ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info.bmiHeader.biCompression = BI_RGB; 5286271117d826098c1399cf7442f8eea2d665cb78areed@google.com if (isBW) { 5296271117d826098c1399cf7442f8eea2d665cb78areed@google.com info.bmiHeader.biClrUsed = 2; 5306271117d826098c1399cf7442f8eea2d665cb78areed@google.com } 531ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HBITMAP bm = CreateDIBSection(dc, &info, DIB_RGB_COLORS, &bits, 0, 0); 532ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SelectObject(dc, bm); 533ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 534ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // erase to white 5356271117d826098c1399cf7442f8eea2d665cb78areed@google.com size_t srcRB = isBW ? (biWidth >> 3) : (glyph.fWidth << 2); 536ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com size_t size = glyph.fHeight * srcRB; 5376271117d826098c1399cf7442f8eea2d665cb78areed@google.com memset(bits, isBW ? 0 : 0xFF, size); 538ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 5391dd17a133f4fa5c5a0c752e6b9a6f7af6f329fb8reed@google.com SetGraphicsMode(dc, GM_ADVANCED); 540ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SetBkMode(dc, TRANSPARENT); 541ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SetTextAlign(dc, TA_LEFT | TA_BASELINE); 542ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 543ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com XFORM xform = fXform; 544ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com xform.eDx = (float)-glyph.fLeft; 545ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com xform.eDy = (float)-glyph.fTop; 546ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SetWorldTransform(dc, &xform); 547ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 548ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HGDIOBJ prevFont = SelectObject(dc, fFont); 5496271117d826098c1399cf7442f8eea2d665cb78areed@google.com COLORREF color = SetTextColor(dc, isBW ? 0xFFFFFF : 0); 550ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(color != CLR_INVALID); 551ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com uint16_t glyphID = glyph.getGlyphID(); 552c8ad63e5e42637c65c6b4e0adfacce55730b722dbsalomon@google.com#if defined(UNICODE) 553ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ExtTextOut(dc, 0, 0, ETO_GLYPH_INDEX, NULL, (LPCWSTR)&glyphID, 1, NULL); 554c8ad63e5e42637c65c6b4e0adfacce55730b722dbsalomon@google.com#else 555c8ad63e5e42637c65c6b4e0adfacce55730b722dbsalomon@google.com ExtTextOut(dc, 0, 0, ETO_GLYPH_INDEX, NULL, (LPCSTR)&glyphID, 1, NULL); 556c8ad63e5e42637c65c6b4e0adfacce55730b722dbsalomon@google.com#endif 557ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com GdiFlush(); 558ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 559ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // downsample from rgba to rgb565 560ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int width = glyph.fWidth; 561ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com size_t dstRB = glyph.rowBytes(); 5626271117d826098c1399cf7442f8eea2d665cb78areed@google.com if (isBW) { 5636271117d826098c1399cf7442f8eea2d665cb78areed@google.com const uint8_t* src = (const uint8_t*)bits; 5646271117d826098c1399cf7442f8eea2d665cb78areed@google.com // gdi's bitmap is upside-down, so we reverse dst walking in Y 5656271117d826098c1399cf7442f8eea2d665cb78areed@google.com uint8_t* dst = (uint8_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 5666271117d826098c1399cf7442f8eea2d665cb78areed@google.com for (int y = 0; y < glyph.fHeight; y++) { 5676271117d826098c1399cf7442f8eea2d665cb78areed@google.com memcpy(dst, src, dstRB); 5686271117d826098c1399cf7442f8eea2d665cb78areed@google.com src += srcRB; 5696271117d826098c1399cf7442f8eea2d665cb78areed@google.com dst -= dstRB; 5706271117d826098c1399cf7442f8eea2d665cb78areed@google.com } 5716271117d826098c1399cf7442f8eea2d665cb78areed@google.com } else { // LCD16 5726271117d826098c1399cf7442f8eea2d665cb78areed@google.com const uint32_t* src = (const uint32_t*)bits; 5736271117d826098c1399cf7442f8eea2d665cb78areed@google.com // gdi's bitmap is upside-down, so we reverse dst walking in Y 5746271117d826098c1399cf7442f8eea2d665cb78areed@google.com uint16_t* dst = (uint16_t*)((char*)glyph.fImage + (glyph.fHeight - 1) * dstRB); 5756271117d826098c1399cf7442f8eea2d665cb78areed@google.com for (int y = 0; y < glyph.fHeight; y++) { 5766271117d826098c1399cf7442f8eea2d665cb78areed@google.com for (int i = 0; i < width; i++) { 5776271117d826098c1399cf7442f8eea2d665cb78areed@google.com dst[i] = rgb_to_lcd16(src[i]); 5786271117d826098c1399cf7442f8eea2d665cb78areed@google.com } 5796271117d826098c1399cf7442f8eea2d665cb78areed@google.com src = (const uint32_t*)((const char*)src + srcRB); 5806271117d826098c1399cf7442f8eea2d665cb78areed@google.com dst = (uint16_t*)((char*)dst - dstRB); 581ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 582ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 583ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 584ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteDC(dc); 585ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteObject(bm); 586ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return; 587ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 588ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 589ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com GLYPHMETRICS gm; 590ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com memset(&gm, 0, sizeof(gm)); 591ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com uint32_t bytecount = 0; 592ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com uint32_t total_size = GetGlyphOutlineW(fDDC, glyph.fID, GGO_GRAY8_BITMAP | GGO_GLYPH_INDEX, &gm, 0, NULL, &fMat22); 593ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (GDI_ERROR != total_size && total_size > 0) { 594e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkAutoSMalloc<1024> storage(total_size); 595e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com uint8_t *pBuff = (uint8_t*)storage.get(); 596e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com total_size = GetGlyphOutlineW(fDDC, glyph.fID, GGO_GRAY8_BITMAP | GGO_GLYPH_INDEX, &gm, total_size, pBuff, &fMat22); 597e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkASSERT(total_size != GDI_ERROR); 598e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkASSERT(glyph.fWidth == gm.gmBlackBoxX); 599e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkASSERT(glyph.fHeight == gm.gmBlackBoxY); 600e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com 601e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com uint8_t* dst = (uint8_t*)glyph.fImage; 602e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com uint32_t pitch = (gm.gmBlackBoxX + 3) & ~0x3; 603e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com if (pitch != glyph.rowBytes()) { 604e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkASSERT(false); // glyph.fImage has different rowsize!? 605e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com } 606ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 607e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com for (int32_t y = gm.gmBlackBoxY - 1; y >= 0; y--) { 608e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com const uint8_t* src = pBuff + pitch * y; 609ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 610e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com for (uint32_t x = 0; x < gm.gmBlackBoxX; x++) { 611e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com if (*src > 63) { 612e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com *dst = 0xFF; 613e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com } else { 614e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com *dst = *src << 2; // scale to 0-255 615ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 616e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com dst++; 617e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com src++; 618e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com bytecount++; 619ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 620e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com memset(dst, 0, glyph.rowBytes() - glyph.fWidth); 621e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com dst += glyph.rowBytes() - glyph.fWidth; 622ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 623ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 624ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(GDI_ERROR != total_size && total_size >= 0); 625ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 626ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 627ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comvoid SkScalerContext_Windows::generatePath(const SkGlyph& glyph, SkPath* path) { 628ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 629ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkAutoMutexAcquire ac(gFTMutex); 630ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 631ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(&glyph && path); 632ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(fDDC); 633ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 634ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com path->reset(); 635ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 636ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#if 0 637ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com char buf[1024]; 638ac6b97972d3c5a8e10b79c1409818756310e0f12reed@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); 639ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com OutputDebugString(buf); 640ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#endif 641ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 642ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com GLYPHMETRICS gm; 643ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com uint32_t total_size = GetGlyphOutlineW(fDDC, glyph.fID, GGO_NATIVE | GGO_GLYPH_INDEX, &gm, BUFFERSIZE, glyphbuf, &fMat22); 644ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 645ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (GDI_ERROR != total_size) { 646ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 647ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com const uint8_t* cur_glyph = glyphbuf; 648ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com const uint8_t* end_glyph = glyphbuf + total_size; 649ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 650ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com while(cur_glyph < end_glyph) { 651ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com const TTPOLYGONHEADER* th = (TTPOLYGONHEADER*)cur_glyph; 652ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 653ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com const uint8_t* end_poly = cur_glyph + th->cb; 654ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com const uint8_t* cur_poly = cur_glyph + sizeof(TTPOLYGONHEADER); 655ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 656ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com path->moveTo(SkFixedToScalar(*(SkFixed*)(&th->pfxStart.x)), SkFixedToScalar(*(SkFixed*)(&th->pfxStart.y))); 657ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 658ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com while(cur_poly < end_poly) { 659ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com const TTPOLYCURVE* pc = (const TTPOLYCURVE*)cur_poly; 660ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 661ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (pc->wType == TT_PRIM_LINE) { 662ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com for (uint16_t i = 0; i < pc->cpfx; i++) { 663ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com path->lineTo(SkFixedToScalar(*(SkFixed*)(&pc->apfx[i].x)), SkFixedToScalar(*(SkFixed*)(&pc->apfx[i].y))); 664ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 665ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 666ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 667ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (pc->wType == TT_PRIM_QSPLINE) { 668ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com for (uint16_t u = 0; u < pc->cpfx - 1; u++) { // Walk through points in spline 669ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com POINTFX pnt_b = pc->apfx[u]; // B is always the current point 670ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com POINTFX pnt_c = pc->apfx[u+1]; 671ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 672ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (u < pc->cpfx - 2) { // If not on last spline, compute C 673ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com pnt_c.x = SkFixedToFIXED(SkFixedAve(*(SkFixed*)(&pnt_b.x), *(SkFixed*)(&pnt_c.x))); 674ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com pnt_c.y = SkFixedToFIXED(SkFixedAve(*(SkFixed*)(&pnt_b.y), *(SkFixed*)(&pnt_c.y))); 675ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 676ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 677ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com path->quadTo(SkFixedToScalar(*(SkFixed*)(&pnt_b.x)), SkFixedToScalar(*(SkFixed*)(&pnt_b.y)), SkFixedToScalar(*(SkFixed*)(&pnt_c.x)), SkFixedToScalar(*(SkFixed*)(&pnt_c.y))); 678ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 679ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 680ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com cur_poly += sizeof(uint16_t) * 2 + sizeof(POINTFX) * pc->cpfx; 681ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 682ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com cur_glyph += th->cb; 683ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com path->close(); 684ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 685ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 686ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com else { 687ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(false); 688ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 689ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com //char buf[1024]; 690ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com //sprintf(buf, "generatePath: count:%d\n", count); 691ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com //OutputDebugString(buf); 692ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 693ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 694ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comvoid SkFontHost::Serialize(const SkTypeface* face, SkWStream* stream) { 695ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(!"SkFontHost::Serialize unimplemented"); 696ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 697ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 698ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comSkTypeface* SkFontHost::Deserialize(SkStream* stream) { 699ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(!"SkFontHost::Deserialize unimplemented"); 700ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return NULL; 701ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 702ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 703ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comstatic bool getWidthAdvance(HDC hdc, int gId, int16_t* advance) { 704ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Initialize the MAT2 structure to the identify transformation matrix. 705ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com static const MAT2 mat2 = {SkScalarToFIXED(1), SkScalarToFIXED(0), 706ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkScalarToFIXED(0), SkScalarToFIXED(1)}; 707ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int flags = GGO_METRICS | GGO_GLYPH_INDEX; 708ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com GLYPHMETRICS gm; 709ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (GDI_ERROR == GetGlyphOutline(hdc, gId, flags, &gm, 0, NULL, &mat2)) { 710ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return false; 711ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 712ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(advance); 713ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com *advance = gm.gmCellIncX; 714ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return true; 715ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 716ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 717ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com// static 718ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comSkAdvancedTypefaceMetrics* SkFontHost::GetAdvancedTypefaceMetrics( 719325cb9aa17b94258b362082eb3a799524f4345f3vandebo@chromium.org uint32_t fontID, 720325cb9aa17b94258b362082eb3a799524f4345f3vandebo@chromium.org SkAdvancedTypefaceMetrics::PerGlyphInfo perGlyphInfo) { 72159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LOGFONT lf; 72259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com GetLogFontByID(fontID, &lf); 723ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkAdvancedTypefaceMetrics* info = NULL; 724ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 725ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HDC hdc = CreateCompatibleDC(NULL); 726ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT font = CreateFontIndirect(&lf); 727ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT savefont = (HFONT)SelectObject(hdc, font); 728ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT designFont = NULL; 729ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 730ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // To request design units, create a logical font whose height is specified 731ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // as unitsPerEm. 732ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com OUTLINETEXTMETRIC otm; 733ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (!GetOutlineTextMetrics(hdc, sizeof(otm), &otm) || 734ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com !GetTextFace(hdc, LF_FACESIZE, lf.lfFaceName)) { 735ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com goto Error; 736ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 737ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com lf.lfHeight = -SkToS32(otm.otmEMSquare); 738ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com designFont = CreateFontIndirect(&lf); 739ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SelectObject(hdc, designFont); 740ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (!GetOutlineTextMetrics(hdc, sizeof(otm), &otm)) { 741ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com goto Error; 742ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 743ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com const unsigned glyphCount = calculateGlyphCount(hdc); 744ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 745ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info = new SkAdvancedTypefaceMetrics; 746ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fEmSize = otm.otmEMSquare; 747ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fMultiMaster = false; 748ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fLastGlyphID = SkToU16(glyphCount - 1); 749ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle = 0; 750ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#ifdef UNICODE 751ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Get the buffer size needed first. 752ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com size_t str_len = WideCharToMultiByte(CP_UTF8, 0, lf.lfFaceName, -1, NULL, 753ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 0, NULL, NULL); 754ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Allocate a buffer (str_len already has terminating null accounted for). 755ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com char *familyName = new char[str_len]; 756ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Now actually convert the string. 757ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com WideCharToMultiByte(CP_UTF8, 0, lf.lfFaceName, -1, familyName, str_len, 758ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com NULL, NULL); 759ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fFontName.set(familyName); 760ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com delete [] familyName; 761ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#else 762ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fFontName.set(lf.lfFaceName); 763ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#endif 764ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 7656744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org if (perGlyphInfo & SkAdvancedTypefaceMetrics::kToUnicode_PerGlyphInfo) { 7666744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org populate_glyph_to_unicode(hdc, glyphCount, &(info->fGlyphToUnicode)); 7676744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org } 7686744d498fcbbbcf503ec80c4d43dd8f118a88597vandebo@chromium.org 769ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (otm.otmTextMetrics.tmPitchAndFamily & TMPF_TRUETYPE) { 770ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fType = SkAdvancedTypefaceMetrics::kTrueType_Font; 771ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 772ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fType = SkAdvancedTypefaceMetrics::kOther_Font; 773ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fItalicAngle = 0; 774ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fAscent = 0; 775ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fDescent = 0; 776ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStemV = 0; 777ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fCapHeight = 0; 778ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fBBox = SkIRect::MakeEmpty(); 779ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return info; 780ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 781ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 782ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // If this bit is clear the font is a fixed pitch font. 783ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (!(otm.otmTextMetrics.tmPitchAndFamily & TMPF_FIXED_PITCH)) { 784ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kFixedPitch_Style; 785ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 786ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (otm.otmTextMetrics.tmItalic) { 787ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kItalic_Style; 788ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 789ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Setting symbolic style by default for now. 790ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kSymbolic_Style; 791ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (otm.otmTextMetrics.tmPitchAndFamily & FF_ROMAN) { 792ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kSerif_Style; 793ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else if (otm.otmTextMetrics.tmPitchAndFamily & FF_SCRIPT) { 794ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStyle |= SkAdvancedTypefaceMetrics::kScript_Style; 795ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 796ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 797ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // The main italic angle of the font, in tenths of a degree counterclockwise 798ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // from vertical. 799ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fItalicAngle = otm.otmItalicAngle / 10; 800ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fAscent = SkToS16(otm.otmTextMetrics.tmAscent); 801ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fDescent = SkToS16(-otm.otmTextMetrics.tmDescent); 802ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // TODO(ctguil): Use alternate cap height calculation. 803ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // MSDN says otmsCapEmHeight is not support but it is returning a value on 804ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // my Win7 box. 805ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fCapHeight = otm.otmsCapEmHeight; 806ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fBBox = 807ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkIRect::MakeLTRB(otm.otmrcFontBox.left, otm.otmrcFontBox.top, 808ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com otm.otmrcFontBox.right, otm.otmrcFontBox.bottom); 809ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 810ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // Figure out a good guess for StemV - Min width of i, I, !, 1. 811ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // This probably isn't very good with an italic font. 812ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int16_t min_width = SHRT_MAX; 813ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStemV = 0; 814ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com char stem_chars[] = {'i', 'I', '!', '1'}; 815ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com for (size_t i = 0; i < SK_ARRAY_COUNT(stem_chars); i++) { 816ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com ABC abcWidths; 817ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (GetCharABCWidths(hdc, stem_chars[i], stem_chars[i], &abcWidths)) { 818ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com int16_t width = abcWidths.abcB; 819ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (width > 0 && width < min_width) { 820ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com min_width = width; 821ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fStemV = min_width; 822ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 823ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 824ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 825ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 826ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // If bit 1 is set, the font may not be embedded in a document. 827ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // If bit 1 is clear, the font can be embedded. 828ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com // If bit 2 is set, the embedding is read-only. 829ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (otm.otmfsType & 0x1) { 830ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fType = SkAdvancedTypefaceMetrics::kNotEmbeddable_Font; 8310e6dc0a320985ffd31f77eed8a41e62132b9ba95ctguil@chromium.org } else if (perGlyphInfo & 8320e6dc0a320985ffd31f77eed8a41e62132b9ba95ctguil@chromium.org SkAdvancedTypefaceMetrics::kHAdvance_PerGlyphInfo) { 833ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com info->fGlyphWidths.reset( 834ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com getAdvanceData(hdc, glyphCount, &getWidthAdvance)); 835ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 836ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 837ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comError: 838ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SelectObject(hdc, savefont); 839ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteObject(designFont); 840ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteObject(font); 841ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteDC(hdc); 842ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 843ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return info; 844ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 845ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 846ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comSkTypeface* SkFontHost::CreateTypefaceFromStream(SkStream* stream) { 847ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 848ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com //Should not be used on Windows, keep linker happy 849ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkASSERT(false); 850ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkCreateTypefaceFromLOGFONT(get_default_font()); 851ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 852ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 853ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comSkStream* SkFontHost::OpenStream(SkFontID uniqueID) { 854f4c2622a1a3489988f2d85a81fdc132b17a92bddctguil@chromium.org const DWORD kTTCTag = 855f4c2622a1a3489988f2d85a81fdc132b17a92bddctguil@chromium.org SkEndian_SwapBE32(SkSetFourByteTag('t', 't', 'c', 'f')); 85659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LOGFONT lf; 85759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com GetLogFontByID(uniqueID, &lf); 858ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 859ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HDC hdc = ::CreateCompatibleDC(NULL); 86059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com HFONT font = CreateFontIndirect(&lf); 861ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com HFONT savefont = (HFONT)SelectObject(hdc, font); 862ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 863d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org SkMemoryStream* stream = NULL; 864d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org DWORD tables[2] = {kTTCTag, 0}; 865d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org for (int i = 0; i < SK_ARRAY_COUNT(tables); i++) { 866d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org size_t bufferSize = GetFontData(hdc, tables[i], 0, NULL, 0); 867d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org if (bufferSize != GDI_ERROR) { 868d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org stream = new SkMemoryStream(bufferSize); 869d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org if (GetFontData(hdc, tables[i], 0, (void*)stream->getMemoryBase(), 870d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org bufferSize)) { 871d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org break; 872d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org } else { 873d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org delete stream; 874d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org stream = NULL; 875d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org } 876d604481f7a2587f5b400d2a0a68a6491a0d584c7vandebo@chromium.org } 877ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 878ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 879ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SelectObject(hdc, savefont); 880ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteObject(font); 881ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com DeleteDC(hdc); 882ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 883ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return stream; 884ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 885ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 886ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comSkScalerContext* SkFontHost::CreateScalerContext(const SkDescriptor* desc) { 887ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return SkNEW_ARGS(SkScalerContext_Windows, (desc)); 888ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 889ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 890ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com/** Return the closest matching typeface given either an existing family 891ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com (specified by a typeface in that family) or by a familyName, and a 892ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com requested style. 893ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1) If familyFace is null, use famillyName. 894ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 2) If famillyName is null, use familyFace. 895ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 3) If both are null, return the default font that best matches style 896ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com This MUST not return NULL. 897ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com */ 898ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 899ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comSkTypeface* SkFontHost::CreateTypeface(const SkTypeface* familyFace, 900ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com const char familyName[], 901ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com const void* data, size_t bytelength, 902ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com SkTypeface::Style style) { 90359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LOGFONT lf; 904ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (NULL == familyFace && NULL == familyName) { 90559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf = get_default_font(); 90659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com } else if (familyFace) { 90759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com LogFontTypeface* face = (LogFontTypeface*)familyFace; 90859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf = face->fLogFont; 909ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } else { 91059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com memset(&lf, 0, sizeof(LOGFONT)); 911ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#ifdef UNICODE 91259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com // Get the buffer size needed first. 91359d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com size_t str_len = ::MultiByteToWideChar(CP_UTF8, 0, familyName, 91459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com -1, NULL, 0); 91559d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com // Allocate a buffer (str_len already has terminating null 91659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com // accounted for). 91759d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com wchar_t *wideFamilyName = new wchar_t[str_len]; 91859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com // Now actually convert the string. 91959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com ::MultiByteToWideChar(CP_UTF8, 0, familyName, -1, 92059d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com wideFamilyName, str_len); 92159d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com ::wcsncpy(lf.lfFaceName, wideFamilyName, LF_FACESIZE); 92259d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com delete [] wideFamilyName; 923ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#else 92459d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com ::strncpy(lf.lfFaceName, familyName, LF_FACESIZE); 925ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#endif 92659d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com lf.lfFaceName[LF_FACESIZE-1] = '\0'; 927ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com } 92859d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com setStyle(&lf, style); 92959d2f63583512b47df579e80f1ae39c74fad5f3ereed@google.com return SkCreateTypefaceFromLOGFONT(lf); 930ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 931ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 932ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comsize_t SkFontHost::ShouldPurgeFontCache(size_t sizeAllocatedSoFar) { 933ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com if (sizeAllocatedSoFar > FONT_CACHE_MEMORY_BUDGET) 934ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return sizeAllocatedSoFar - FONT_CACHE_MEMORY_BUDGET; 935ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com else 936ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return 0; // nothing to do 937ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 938ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 939ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comint SkFontHost::ComputeGammaFlag(const SkPaint& paint) { 940ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return 0; 941ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 942ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 943ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comvoid SkFontHost::GetGammaTables(const uint8_t* tables[2]) { 944ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com tables[0] = NULL; // black gamma (e.g. exp=1.4) 945ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com tables[1] = NULL; // white gamma (e.g. exp= 1/1.4) 946ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 947ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 948ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comSkTypeface* SkFontHost::CreateTypefaceFromFile(const char path[]) { 949ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com printf("SkFontHost::CreateTypefaceFromFile unimplemented"); 950ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com return NULL; 951ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 952ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 953da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.comstatic bool isLCD(const SkScalerContext::Rec& rec) { 954da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com return SkMask::kLCD16_Format == rec.fMaskFormat || 955da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com SkMask::kLCD32_Format == rec.fMaskFormat; 956da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com} 957da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com 958da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.comstatic bool bothZero(SkScalar a, SkScalar b) { 959da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com return 0 == a && 0 == b; 960da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com} 961da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com 962da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com// returns false if there is any non-90-rotation or skew 963da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.comstatic bool isAxisAligned(const SkScalerContext::Rec& rec) { 964da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com return 0 == rec.fPreSkewX && 965da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com (bothZero(rec.fPost2x2[0][1], rec.fPost2x2[1][0]) || 966da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com bothZero(rec.fPost2x2[0][0], rec.fPost2x2[1][1])); 967da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com} 968da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com 969ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.comvoid SkFontHost::FilterRec(SkScalerContext::Rec* rec) { 970e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com unsigned flagsWeDontSupport = SkScalerContext::kDevKernText_Flag | 971e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kAutohinting_Flag | 972e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kEmbeddedBitmapText_Flag | 973e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kEmbolden_Flag | 974e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kLCD_BGROrder_Flag | 975e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkScalerContext::kLCD_Vertical_Flag; 976e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com rec->fFlags &= ~flagsWeDontSupport; 977e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com 978e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkPaint::Hinting h = rec->getHinting(); 979da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com 980da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com // I think we can support no-hinting, if we get hires outlines and just 981da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com // use skia to rasterize into a gray-scale mask... 982da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com#if 0 983e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com switch (h) { 984e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kNo_Hinting: 985e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kSlight_Hinting: 986e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com h = SkPaint::kNo_Hinting; 987e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com break; 988e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kNormal_Hinting: 989e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com case SkPaint::kFull_Hinting: 990e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com h = SkPaint::kNormal_Hinting; 991e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com break; 992e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com default: 993e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com SkASSERT(!"unknown hinting"); 994e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com } 995da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com#else 996da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com h = SkPaint::kNormal_Hinting; 997da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com#endif 998e8fab0111d11316a027bc6ae60c62cc6575cdc05reed@google.com rec->setHinting(h); 999da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com 1000da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com // Disable LCD when rotated, since GDI's output is ugly 1001da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com if (isLCD(*rec) && !isAxisAligned(*rec)) { 1002da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com rec->fMaskFormat = SkMask::kA8_Format; 1003da44067ec97fddd3bab52da34e2fc5ddc5241c34reed@google.com } 1004ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com} 1005ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com 1006ac6b97972d3c5a8e10b79c1409818756310e0f12reed@google.com#endif // WIN32 1007