c7a84fa10a
BUG=skia:3080 R=reed@google.com Review URL: https://codereview.chromium.org/884873007
451 lines
17 KiB
C++
451 lines
17 KiB
C++
/*
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* Copyright 2014 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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// running create_test_font generates ./tools/test_font_data.cpp
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// which is read by ./tools/sk_tool_utils_font.cpp
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#include "Resources.h"
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#include "SkOSFile.h"
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#include "SkPaint.h"
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#include "SkPath.h"
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#include "SkStream.h"
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#include "SkTArray.h"
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#include "SkTSort.h"
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#include "SkTypeface.h"
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#include "SkUtils.h"
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#include <stdio.h>
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// the folllowing include is generated by running dm with
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// --portableFonts --reportUsedChars
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#include "test_font_data_chars.cpp"
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#define DEFAULT_FONT_NAME "Liberation Sans"
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static struct FontDesc {
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const char* fName;
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SkTypeface::Style fStyle;
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const char* fFont;
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const char* fFile;
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const char* fCharsUsed;
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int fFontIndex;
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} gFonts[] = {
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{"Courier New", SkTypeface::kNormal, "Courier New", "Courier New.ttf",
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gCourierNew, -1},
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{"Courier New", SkTypeface::kBold, "Courier New", "Courier New Bold.ttf",
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gCourierNew_Bold, -1},
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{"Courier New", SkTypeface::kItalic, "Courier New", "Courier New Italic.ttf",
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gCourierNew_Italic, -1},
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{"Courier New", SkTypeface::kBoldItalic, "Courier New", "Courier New Bold Italic.ttf",
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gCourierNew_BoldItalic, -1},
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{"Helvetica", SkTypeface::kNormal, "Liberation Sans", "LiberationSans-Regular.ttf",
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gLiberationSans, -1},
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{"Helvetica", SkTypeface::kBold, "Liberation Sans", "LiberationSans-Bold.ttf",
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gLiberationSans_Bold, -1},
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{"Helvetica", SkTypeface::kItalic, "Liberation Sans", "LiberationSans-Italic.ttf",
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gLiberationSans_Italic, -1},
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{"Helvetica", SkTypeface::kBoldItalic, "Liberation Sans", "LiberationSans-BoldItalic.ttf",
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gLiberationSans_BoldItalic, -1},
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{"Hiragino Maru Gothic Pro", SkTypeface::kNormal, "Hiragino Maru Gothic Pro", "Pro W4.otf",
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gHiraginoMaruGothicPro, -1},
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{"Liberation Sans", SkTypeface::kNormal, "Liberation Sans", "LiberationSans-Regular.ttf",
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gLiberationSans, -1},
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{"Liberation Sans", SkTypeface::kBold, "Liberation Sans", "LiberationSans-Bold.ttf",
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gLiberationSans_Bold, -1},
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{"Liberation Sans", SkTypeface::kItalic, "Liberation Sans", "LiberationSans-Italic.ttf",
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gLiberationSans_Italic, -1},
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{"Liberation Sans", SkTypeface::kBoldItalic, "Liberation Sans", "LiberationSans-BoldItalic.ttf",
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gLiberationSans_BoldItalic, -1},
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{"monospace", SkTypeface::kNormal, "Courier New", "Courier New.ttf",
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gCourierNew, -1},
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{"monospace", SkTypeface::kBold, "Courier New", "Courier New Bold.ttf",
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gCourierNew_Bold, -1},
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{"monospace", SkTypeface::kItalic, "Courier New", "Courier New Italic.ttf",
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gCourierNew_Italic, -1},
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{"monospace", SkTypeface::kBoldItalic, "Courier New", "Courier New Bold Italic.ttf",
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gCourierNew_BoldItalic, -1},
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{"Papyrus", SkTypeface::kNormal, "Papyrus", "Papyrus.ttc",
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gPapyrus, -1},
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{"sans-serif", SkTypeface::kNormal, "Liberation Sans", "LiberationSans-Regular.ttf",
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gLiberationSans, -1},
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{"sans-serif", SkTypeface::kBold, "Liberation Sans", "LiberationSans-Bold.ttf",
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gLiberationSans_Bold, -1},
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{"sans-serif", SkTypeface::kItalic, "Liberation Sans", "LiberationSans-Italic.ttf",
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gLiberationSans_Italic, -1},
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{"sans-serif", SkTypeface::kBoldItalic, "Liberation Sans", "LiberationSans-BoldItalic.ttf",
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gLiberationSans_BoldItalic, -1},
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{"serif", SkTypeface::kNormal, "Times New Roman", "Times New Roman.ttf",
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gTimesNewRoman, -1},
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{"serif", SkTypeface::kBold, "Times New Roman", "Times New Roman Bold.ttf",
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gTimesNewRoman_Bold, -1},
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{"serif", SkTypeface::kItalic, "Times New Roman", "Times New Roman Italic.ttf",
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gTimesNewRoman_Italic, -1},
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{"serif", SkTypeface::kBoldItalic, "Times New Roman", "Times New Roman Bold Italic.ttf",
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gTimesNewRoman_BoldItalic, -1},
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{"Times", SkTypeface::kNormal, "Times New Roman", "Times New Roman.ttf",
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gTimesNewRoman, -1},
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{"Times", SkTypeface::kBold, "Times New Roman", "Times New Roman Bold.ttf",
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gTimesNewRoman_Bold, -1},
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{"Times", SkTypeface::kItalic, "Times New Roman", "Times New Roman Italic.ttf",
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gTimesNewRoman_Italic, -1},
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{"Times", SkTypeface::kBoldItalic, "Times New Roman", "Times New Roman Bold Italic.ttf",
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gTimesNewRoman_BoldItalic, -1},
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{"Times New Roman", SkTypeface::kNormal, "Times New Roman", "Times New Roman.ttf",
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gTimesNewRoman, -1},
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{"Times New Roman", SkTypeface::kBold, "Times New Roman", "Times New Roman Bold.ttf",
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gTimesNewRoman_Bold, -1},
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{"Times New Roman", SkTypeface::kItalic, "Times New Roman", "Times New Roman Italic.ttf",
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gTimesNewRoman_Italic, -1},
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{"Times New Roman", SkTypeface::kBoldItalic, "Times New Roman", "Times New Roman Bold Italic.ttf",
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gTimesNewRoman_BoldItalic, -1},
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{"Times Roman", SkTypeface::kNormal, "Liberation Sans", "LiberationSans-Regular.ttf",
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gLiberationSans, -1},
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};
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const int gFontsCount = (int) SK_ARRAY_COUNT(gFonts);
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const char* gStyleName[] = {
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"kNormal",
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"kBold",
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"kItalic",
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"kBoldItalic",
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};
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const char gHeader[] =
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"/*\n"
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" * Copyright 2014 Google Inc.\n"
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" *\n"
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" * Use of this source code is governed by a BSD-style license that can be\n"
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" * found in the LICENSE file.\n"
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" */\n"
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"\n"
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"// Auto-generated by ";
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static FILE* font_header() {
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SkString outPath(SkOSPath::Join(".", "tools"));
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outPath = SkOSPath::Join(outPath.c_str(), "test_font_data.cpp");
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FILE* out = fopen(outPath.c_str(), "w");
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fprintf(out, "%s%s\n\n", gHeader, SkOSPath::Basename(__FILE__).c_str());
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return out;
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}
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enum {
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kMaxLineLength = 80,
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};
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static ptrdiff_t last_line_length(const SkString& str) {
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const char* first = str.c_str();
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const char* last = first + str.size();
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const char* ptr = last;
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while (ptr > first && *--ptr != '\n')
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;
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return last - ptr - 1;
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}
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static void output_fixed(SkScalar num, int emSize, SkString* out) {
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int hex = (int) (num * 65536 / emSize);
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out->appendf("0x%08x,", hex);
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*out += (int) last_line_length(*out) >= kMaxLineLength ? '\n' : ' ';
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}
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static void output_scalar(SkScalar num, int emSize, SkString* out) {
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num /= emSize;
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if (num == (int) num) {
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out->appendS32((int) num);
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} else {
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SkString str;
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str.printf("%1.6g", num);
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int width = (int) str.size();
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const char* cStr = str.c_str();
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while (cStr[width - 1] == '0') {
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--width;
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}
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str.remove(width, str.size() - width);
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out->appendf("%sf", str.c_str());
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}
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*out += ',';
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*out += (int) last_line_length(*out) >= kMaxLineLength ? '\n' : ' ';
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}
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static int output_points(const SkPoint* pts, int emSize, int count, SkString* ptsOut) {
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for (int index = 0; index < count; ++index) {
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// SkASSERT(floor(pts[index].fX) == pts[index].fX);
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output_scalar(pts[index].fX, emSize, ptsOut);
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// SkASSERT(floor(pts[index].fY) == pts[index].fY);
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output_scalar(pts[index].fY, emSize, ptsOut);
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}
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return count;
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}
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static void output_path_data(const SkPaint& paint, const char* used,
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int emSize, SkString* ptsOut, SkTDArray<SkPath::Verb>* verbs,
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SkTDArray<unsigned>* charCodes, SkTDArray<SkScalar>* widths) {
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while (*used) {
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SkUnichar index = SkUTF8_NextUnichar(&used);
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SkPath path;
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paint.getTextPath((const void*) &index, 2, 0, 0, &path);
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SkPath::RawIter iter(path);
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SkPath::Verb verb;
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SkPoint pts[4];
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while ((verb = iter.next(pts)) != SkPath::kDone_Verb) {
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*verbs->append() = verb;
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switch (verb) {
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case SkPath::kMove_Verb:
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output_points(&pts[0], emSize, 1, ptsOut);
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break;
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case SkPath::kLine_Verb:
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output_points(&pts[1], emSize, 1, ptsOut);
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break;
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case SkPath::kQuad_Verb:
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output_points(&pts[1], emSize, 2, ptsOut);
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break;
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case SkPath::kCubic_Verb:
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output_points(&pts[1], emSize, 3, ptsOut);
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break;
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case SkPath::kClose_Verb:
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break;
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default:
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SkDEBUGFAIL("bad verb");
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SkASSERT(0);
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}
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}
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*verbs->append() = SkPath::kDone_Verb;
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*charCodes->append() = index;
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SkScalar width;
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SkDEBUGCODE(int charCount =) paint.getTextWidths((const void*) &index, 2, &width);
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SkASSERT(charCount == 1);
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// SkASSERT(floor(width) == width); // not true for Hiragino Maru Gothic Pro
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*widths->append() = width;
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}
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}
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static int offset_str_len(unsigned num) {
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if (num == (unsigned) -1) {
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return 10;
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}
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unsigned result = 1;
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unsigned ref = 10;
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while (ref <= num) {
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++result;
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ref *= 10;
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}
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return result;
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}
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static SkString strip_spaces(const SkString& str) {
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SkString result;
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int count = (int) str.size();
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for (int index = 0; index < count; ++index) {
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char c = str[index];
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if (c != ' ' && c != '-') {
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result += c;
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}
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}
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return result;
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}
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static SkString strip_final(const SkString& str) {
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SkString result(str);
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if (result.endsWith("\n")) {
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result.remove(result.size() - 1, 1);
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}
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if (result.endsWith(" ")) {
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result.remove(result.size() - 1, 1);
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}
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if (result.endsWith(",")) {
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result.remove(result.size() - 1, 1);
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}
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return result;
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}
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static void output_font(SkTypeface* face, const char* name, SkTypeface::Style style,
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const char* used, FILE* out) {
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int emSize = face->getUnitsPerEm() * 2;
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SkPaint paint;
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paint.setAntiAlias(true);
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paint.setTextAlign(SkPaint::kLeft_Align);
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paint.setTextEncoding(SkPaint::kUTF16_TextEncoding);
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paint.setTextSize(emSize);
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SkSafeUnref(paint.setTypeface(face));
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SkTDArray<SkPath::Verb> verbs;
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SkTDArray<unsigned> charCodes;
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SkTDArray<SkScalar> widths;
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SkString ptsOut;
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output_path_data(paint, used, emSize, &ptsOut, &verbs, &charCodes, &widths);
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SkString fontnameStr(name);
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SkString strippedStr = strip_spaces(fontnameStr);
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strippedStr.appendf("%s", gStyleName[style]);
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const char* fontname = strippedStr.c_str();
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fprintf(out, "const SkScalar %sPoints[] = {\n", fontname);
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ptsOut = strip_final(ptsOut);
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fprintf(out, "%s", ptsOut.c_str());
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fprintf(out, "\n};\n\n");
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fprintf(out, "const unsigned char %sVerbs[] = {\n", fontname);
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int verbCount = verbs.count();
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int outChCount = 0;
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for (int index = 0; index < verbCount;) {
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SkPath::Verb verb = verbs[index];
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SkASSERT(verb >= SkPath::kMove_Verb && verb <= SkPath::kDone_Verb);
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SkASSERT((unsigned) verb == (unsigned char) verb);
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fprintf(out, "%u", verb);
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if (++index < verbCount) {
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outChCount += 3;
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fprintf(out, "%c", ',');
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if (outChCount >= kMaxLineLength) {
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outChCount = 0;
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fprintf(out, "%c", '\n');
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} else {
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fprintf(out, "%c", ' ');
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}
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}
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}
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fprintf(out, "\n};\n\n");
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fprintf(out, "const unsigned %sCharCodes[] = {\n", fontname);
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int offsetCount = charCodes.count();
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for (int index = 0; index < offsetCount;) {
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unsigned offset = charCodes[index];
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fprintf(out, "%u", offset);
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if (++index < offsetCount) {
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outChCount += offset_str_len(offset) + 2;
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fprintf(out, "%c", ',');
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if (outChCount >= kMaxLineLength) {
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outChCount = 0;
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fprintf(out, "%c", '\n');
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} else {
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fprintf(out, "%c", ' ');
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}
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}
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}
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fprintf(out, "\n};\n\n");
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SkString widthsStr;
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fprintf(out, "const SkFixed %sWidths[] = {\n", fontname);
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for (int index = 0; index < offsetCount; ++index) {
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output_fixed(widths[index], emSize, &widthsStr);
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}
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widthsStr = strip_final(widthsStr);
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fprintf(out, "%s\n};\n\n", widthsStr.c_str());
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fprintf(out, "const int %sCharCodesCount = (int) SK_ARRAY_COUNT(%sCharCodes);\n\n",
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fontname, fontname);
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SkPaint::FontMetrics metrics;
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paint.getFontMetrics(&metrics);
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fprintf(out, "const SkPaint::FontMetrics %sMetrics = {\n", fontname);
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SkString metricsStr;
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metricsStr.printf("0x%08x, ", metrics.fFlags);
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output_scalar(metrics.fTop, emSize, &metricsStr);
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output_scalar(metrics.fAscent, emSize, &metricsStr);
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output_scalar(metrics.fDescent, emSize, &metricsStr);
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output_scalar(metrics.fBottom, emSize, &metricsStr);
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output_scalar(metrics.fLeading, emSize, &metricsStr);
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output_scalar(metrics.fAvgCharWidth, emSize, &metricsStr);
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output_scalar(metrics.fMaxCharWidth, emSize, &metricsStr);
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output_scalar(metrics.fXMin, emSize, &metricsStr);
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output_scalar(metrics.fXMax, emSize, &metricsStr);
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output_scalar(metrics.fXHeight, emSize, &metricsStr);
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output_scalar(metrics.fCapHeight, emSize, &metricsStr);
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output_scalar(metrics.fUnderlineThickness, emSize, &metricsStr);
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output_scalar(metrics.fUnderlinePosition, emSize, &metricsStr);
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metricsStr = strip_final(metricsStr);
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fprintf(out, "%s\n};\n\n", metricsStr.c_str());
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}
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struct FontWritten {
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const char* fName;
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SkTypeface::Style fStyle;
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};
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static SkTDArray<FontWritten> gWritten;
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static int written_index(const FontDesc& fontDesc) {
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for (int index = 0; index < gWritten.count(); ++index) {
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const FontWritten& writ = gWritten[index];
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if (!strcmp(fontDesc.fFont, writ.fName) && fontDesc.fStyle == writ.fStyle) {
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return index;
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}
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}
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return -1;
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}
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static void generate_fonts(FILE* out) {
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for (int index = 0; index < gFontsCount; ++index) {
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FontDesc& fontDesc = gFonts[index];
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int fontIndex = written_index(fontDesc);
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if (fontIndex >= 0) {
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fontDesc.fFontIndex = fontIndex;
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continue;
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}
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SkTypeface* systemTypeface = SkTypeface::CreateFromName(fontDesc.fFont, fontDesc.fStyle);
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SkASSERT(systemTypeface);
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SkString filepath(GetResourcePath(fontDesc.fFile));
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SkASSERT(sk_exists(filepath.c_str()));
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SkTypeface* resourceTypeface = SkTypeface::CreateFromFile(filepath.c_str());
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SkASSERT(resourceTypeface);
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output_font(resourceTypeface, fontDesc.fFont, fontDesc.fStyle, fontDesc.fCharsUsed, out);
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fontDesc.fFontIndex = gWritten.count();
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FontWritten* writ = gWritten.append();
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writ->fName = fontDesc.fFont;
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writ->fStyle = fontDesc.fStyle;
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}
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}
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static void generate_index(const char* defaultName, FILE* out) {
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int fontCount = gWritten.count();
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fprintf(out,
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"static SkTestFontData gTestFonts[] = {\n");
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int fontIndex;
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for (fontIndex = 0; fontIndex < fontCount; ++fontIndex) {
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const FontWritten& writ = gWritten[fontIndex];
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const char* name = writ.fName;
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SkString strippedStr = strip_spaces(SkString(name));
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strippedStr.appendf("%s", gStyleName[writ.fStyle]);
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const char* strip = strippedStr.c_str();
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fprintf(out,
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" { %sPoints, %sVerbs, %sCharCodes,\n"
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" %sCharCodesCount, %sWidths,\n"
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" %sMetrics, \"%s\", SkTypeface::%s, NULL\n"
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" },\n",
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strip, strip, strip, strip, strip, strip, name, gStyleName[writ.fStyle]);
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}
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fprintf(out, "};\n\n");
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fprintf(out, "const int gTestFontsCount = (int) SK_ARRAY_COUNT(gTestFonts);\n\n");
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fprintf(out,
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"struct SubFont {\n"
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" const char* fName;\n"
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" SkTypeface::Style fStyle;\n"
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" SkTestFontData& fFont;\n"
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" const char* fFile;\n"
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"};\n\n"
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"const SubFont gSubFonts[] = {\n");
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int defaultIndex = -1;
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for (int subIndex = 0; subIndex < gFontsCount; subIndex++) {
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const FontDesc& desc = gFonts[subIndex];
|
|
if (!strcmp(defaultName, desc.fName)) {
|
|
defaultIndex = subIndex;
|
|
}
|
|
fprintf(out,
|
|
" { \"%s\", SkTypeface::%s, gTestFonts[%d], \"%s\"},\n", desc.fName,
|
|
gStyleName[desc.fStyle], desc.fFontIndex, desc.fFile);
|
|
}
|
|
fprintf(out, "};\n\n");
|
|
fprintf(out, "const int gSubFontsCount = (int) SK_ARRAY_COUNT(gSubFonts);\n\n");
|
|
SkASSERT(defaultIndex >= 0);
|
|
fprintf(out, "const int gDefaultFontIndex = %d;\n", defaultIndex);
|
|
}
|
|
|
|
int main(int , char * const []) {
|
|
#ifndef SK_BUILD_FOR_MAC
|
|
#error "use fonts installed on Mac"
|
|
#endif
|
|
FILE* out = font_header();
|
|
generate_fonts(out);
|
|
generate_index(DEFAULT_FONT_NAME, out);
|
|
fclose(out);
|
|
return 0;
|
|
}
|