| /* |
| * Copyright 2014 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| // running create_test_font generates ./tools/test_font_index.inc |
| // and ./tools/test_font_<generic name>.inc which are read by ./tools/sk_tool_utils_font.cpp |
| |
| #include "Resources.h" |
| #include "SkFontStyle.h" |
| #include "SkOSFile.h" |
| #include "SkOSPath.h" |
| #include "SkPaint.h" |
| #include "SkPath.h" |
| #include "SkStream.h" |
| #include "SkTArray.h" |
| #include "SkTSort.h" |
| #include "SkTypeface.h" |
| #include "SkUtils.h" |
| #include <stdio.h> |
| |
| #define DEFAULT_FONT_NAME "sans-serif" |
| |
| namespace { |
| |
| struct NamedFontStyle { |
| const char* fName; |
| SkFontStyle fStyle; |
| }; |
| constexpr NamedFontStyle normal = {"Normal", SkFontStyle::Normal() }; |
| constexpr NamedFontStyle bold = {"Bold", SkFontStyle::Bold() }; |
| constexpr NamedFontStyle italic = {"Italic", SkFontStyle::Italic() }; |
| constexpr NamedFontStyle bolditalic = {"BoldItalic", SkFontStyle::BoldItalic()}; |
| |
| struct FontDesc { |
| char const * const fGenericName; |
| NamedFontStyle const fNamedStyle; |
| char const * const fFontName; |
| char const * const fFile; |
| // fFontIndex is mutable and will be set later. |
| int fFontIndex; |
| } gFonts[] = { |
| {"monospace", normal, "Liberation Mono", "LiberationMono-Regular.ttf", -1}, |
| {"monospace", bold, "Liberation Mono", "LiberationMono-Bold.ttf", -1}, |
| {"monospace", italic, "Liberation Mono", "LiberationMono-Italic.ttf", -1}, |
| {"monospace", bolditalic, "Liberation Mono", "LiberationMono-BoldItalic.ttf", -1}, |
| {"sans-serif", normal, "Liberation Sans", "LiberationSans-Regular.ttf", -1}, |
| {"sans-serif", bold, "Liberation Sans", "LiberationSans-Bold.ttf", -1}, |
| {"sans-serif", italic, "Liberation Sans", "LiberationSans-Italic.ttf", -1}, |
| {"sans-serif", bolditalic, "Liberation Sans", "LiberationSans-BoldItalic.ttf", -1}, |
| {"serif", normal, "Liberation Serif", "LiberationSerif-Regular.ttf", -1}, |
| {"serif", bold, "Liberation Serif", "LiberationSerif-Bold.ttf", -1}, |
| {"serif", italic, "Liberation Serif", "LiberationSerif-Italic.ttf", -1}, |
| {"serif", bolditalic, "Liberation Serif", "LiberationSerif-BoldItalic.ttf", -1}, |
| }; |
| |
| const int gFontsCount = (int) SK_ARRAY_COUNT(gFonts); |
| |
| const char gHeader[] = |
| "/*\n" |
| " * Copyright 2015 Google Inc.\n" |
| " *\n" |
| " * Use of this source code is governed by a BSD-style license that can be\n" |
| " * found in the LICENSE file.\n" |
| " */\n" |
| "\n" |
| "// Auto-generated by "; |
| |
| } // namespace |
| |
| static FILE* font_header(const char* family) { |
| SkString outPath(SkOSPath::Join(".", "tools")); |
| outPath = SkOSPath::Join(outPath.c_str(), "test_font_"); |
| SkString fam(family); |
| do { |
| int dashIndex = fam.find("-"); |
| if (dashIndex < 0) { |
| break; |
| } |
| fam.writable_str()[dashIndex] = '_'; |
| } while (true); |
| outPath.append(fam); |
| outPath.append(".inc"); |
| FILE* out = fopen(outPath.c_str(), "w"); |
| fprintf(out, "%s%s\n\n", gHeader, SkOSPath::Basename(__FILE__).c_str()); |
| return out; |
| } |
| |
| enum { |
| kMaxLineLength = 80, |
| }; |
| |
| static ptrdiff_t last_line_length(const SkString& str) { |
| const char* first = str.c_str(); |
| const char* last = first + str.size(); |
| const char* ptr = last; |
| while (ptr > first && *--ptr != '\n') |
| ; |
| return last - ptr - 1; |
| } |
| |
| static void output_fixed(SkScalar num, int emSize, SkString* out) { |
| int hex = (int) (num * 65536 / emSize); |
| out->appendf("0x%08x,", hex); |
| *out += (int) last_line_length(*out) >= kMaxLineLength ? '\n' : ' '; |
| } |
| |
| static void output_scalar(SkScalar num, int emSize, SkString* out) { |
| num /= emSize; |
| if (num == (int) num) { |
| out->appendS32((int) num); |
| } else { |
| SkString str; |
| str.printf("%1.6g", num); |
| int width = (int) str.size(); |
| const char* cStr = str.c_str(); |
| while (cStr[width - 1] == '0') { |
| --width; |
| } |
| str.remove(width, str.size() - width); |
| out->appendf("%sf", str.c_str()); |
| } |
| *out += ','; |
| *out += (int) last_line_length(*out) >= kMaxLineLength ? '\n' : ' '; |
| } |
| |
| static int output_points(const SkPoint* pts, int emSize, int count, SkString* ptsOut) { |
| for (int index = 0; index < count; ++index) { |
| // SkASSERT(floor(pts[index].fX) == pts[index].fX); |
| output_scalar(pts[index].fX, emSize, ptsOut); |
| // SkASSERT(floor(pts[index].fY) == pts[index].fY); |
| output_scalar(pts[index].fY, emSize, ptsOut); |
| } |
| return count; |
| } |
| |
| static void output_path_data(const SkPaint& paint, |
| int emSize, SkString* ptsOut, SkTDArray<SkPath::Verb>* verbs, |
| SkTDArray<unsigned>* charCodes, SkTDArray<SkScalar>* widths) { |
| for (int ch = 0x00; ch < 0x7f; ++ch) { |
| char str[1]; |
| str[0] = ch; |
| const char* used = str; |
| SkUnichar index = SkUTF8_NextUnichar(&used); |
| SkPath path; |
| paint.getTextPath((const void*) &index, 2, 0, 0, &path); |
| SkPath::RawIter iter(path); |
| SkPath::Verb verb; |
| SkPoint pts[4]; |
| while ((verb = iter.next(pts)) != SkPath::kDone_Verb) { |
| *verbs->append() = verb; |
| switch (verb) { |
| case SkPath::kMove_Verb: |
| output_points(&pts[0], emSize, 1, ptsOut); |
| break; |
| case SkPath::kLine_Verb: |
| output_points(&pts[1], emSize, 1, ptsOut); |
| break; |
| case SkPath::kQuad_Verb: |
| output_points(&pts[1], emSize, 2, ptsOut); |
| break; |
| case SkPath::kCubic_Verb: |
| output_points(&pts[1], emSize, 3, ptsOut); |
| break; |
| case SkPath::kClose_Verb: |
| break; |
| default: |
| SkDEBUGFAIL("bad verb"); |
| SkASSERT(0); |
| } |
| } |
| *verbs->append() = SkPath::kDone_Verb; |
| *charCodes->append() = index; |
| SkScalar width; |
| SkDEBUGCODE(int charCount =) paint.getTextWidths((const void*) &index, 2, &width); |
| SkASSERT(charCount == 1); |
| // SkASSERT(floor(width) == width); // not true for Hiragino Maru Gothic Pro |
| *widths->append() = width; |
| if (!ch) { |
| ch = 0x1f; // skip the rest of the control codes |
| } |
| } |
| } |
| |
| static int offset_str_len(unsigned num) { |
| if (num == (unsigned) -1) { |
| return 10; |
| } |
| unsigned result = 1; |
| unsigned ref = 10; |
| while (ref <= num) { |
| ++result; |
| ref *= 10; |
| } |
| return result; |
| } |
| |
| static SkString strip_spaces(const SkString& str) { |
| SkString result; |
| int count = (int) str.size(); |
| for (int index = 0; index < count; ++index) { |
| char c = str[index]; |
| if (c != ' ' && c != '-') { |
| result += c; |
| } |
| } |
| return result; |
| } |
| |
| static SkString strip_final(const SkString& str) { |
| SkString result(str); |
| if (result.endsWith("\n")) { |
| result.remove(result.size() - 1, 1); |
| } |
| if (result.endsWith(" ")) { |
| result.remove(result.size() - 1, 1); |
| } |
| if (result.endsWith(",")) { |
| result.remove(result.size() - 1, 1); |
| } |
| return result; |
| } |
| |
| static void output_font(sk_sp<SkTypeface> face, const char* name, NamedFontStyle style, FILE* out) { |
| int emSize = face->getUnitsPerEm() * 2; |
| SkPaint paint; |
| paint.setAntiAlias(true); |
| paint.setTextAlign(SkPaint::kLeft_Align); |
| paint.setTextEncoding(SkPaint::kUTF16_TextEncoding); |
| paint.setTextSize(emSize); |
| paint.setTypeface(std::move(face)); |
| SkTDArray<SkPath::Verb> verbs; |
| SkTDArray<unsigned> charCodes; |
| SkTDArray<SkScalar> widths; |
| SkString ptsOut; |
| output_path_data(paint, emSize, &ptsOut, &verbs, &charCodes, &widths); |
| SkString fontnameStr(name); |
| SkString strippedStr = strip_spaces(fontnameStr); |
| strippedStr.appendf("%s", style.fName); |
| const char* fontname = strippedStr.c_str(); |
| fprintf(out, "const SkScalar %sPoints[] = {\n", fontname); |
| ptsOut = strip_final(ptsOut); |
| fprintf(out, "%s", ptsOut.c_str()); |
| fprintf(out, "\n};\n\n"); |
| fprintf(out, "const unsigned char %sVerbs[] = {\n", fontname); |
| int verbCount = verbs.count(); |
| int outChCount = 0; |
| for (int index = 0; index < verbCount;) { |
| SkPath::Verb verb = verbs[index]; |
| SkASSERT(verb >= SkPath::kMove_Verb && verb <= SkPath::kDone_Verb); |
| SkASSERT((unsigned) verb == (unsigned char) verb); |
| fprintf(out, "%u", verb); |
| if (++index < verbCount) { |
| outChCount += 3; |
| fprintf(out, "%c", ','); |
| if (outChCount >= kMaxLineLength) { |
| outChCount = 0; |
| fprintf(out, "%c", '\n'); |
| } else { |
| fprintf(out, "%c", ' '); |
| } |
| } |
| } |
| fprintf(out, "\n};\n\n"); |
| |
| // all fonts are now 0x00, 0x20 - 0xFE |
| // don't need to generate or output character codes? |
| fprintf(out, "const unsigned %sCharCodes[] = {\n", fontname); |
| int offsetCount = charCodes.count(); |
| for (int index = 0; index < offsetCount;) { |
| unsigned offset = charCodes[index]; |
| fprintf(out, "%u", offset); |
| if (++index < offsetCount) { |
| outChCount += offset_str_len(offset) + 2; |
| fprintf(out, "%c", ','); |
| if (outChCount >= kMaxLineLength) { |
| outChCount = 0; |
| fprintf(out, "%c", '\n'); |
| } else { |
| fprintf(out, "%c", ' '); |
| } |
| } |
| } |
| fprintf(out, "\n};\n\n"); |
| |
| SkString widthsStr; |
| fprintf(out, "const SkFixed %sWidths[] = {\n", fontname); |
| for (int index = 0; index < offsetCount; ++index) { |
| output_fixed(widths[index], emSize, &widthsStr); |
| } |
| widthsStr = strip_final(widthsStr); |
| fprintf(out, "%s\n};\n\n", widthsStr.c_str()); |
| |
| fprintf(out, "const int %sCharCodesCount = (int) SK_ARRAY_COUNT(%sCharCodes);\n\n", |
| fontname, fontname); |
| |
| SkPaint::FontMetrics metrics; |
| paint.getFontMetrics(&metrics); |
| fprintf(out, "const SkPaint::FontMetrics %sMetrics = {\n", fontname); |
| SkString metricsStr; |
| metricsStr.printf("0x%08x, ", metrics.fFlags); |
| output_scalar(metrics.fTop, emSize, &metricsStr); |
| output_scalar(metrics.fAscent, emSize, &metricsStr); |
| output_scalar(metrics.fDescent, emSize, &metricsStr); |
| output_scalar(metrics.fBottom, emSize, &metricsStr); |
| output_scalar(metrics.fLeading, emSize, &metricsStr); |
| output_scalar(metrics.fAvgCharWidth, emSize, &metricsStr); |
| output_scalar(metrics.fMaxCharWidth, emSize, &metricsStr); |
| output_scalar(metrics.fXMin, emSize, &metricsStr); |
| output_scalar(metrics.fXMax, emSize, &metricsStr); |
| output_scalar(metrics.fXHeight, emSize, &metricsStr); |
| output_scalar(metrics.fCapHeight, emSize, &metricsStr); |
| output_scalar(metrics.fUnderlineThickness, emSize, &metricsStr); |
| output_scalar(metrics.fUnderlinePosition, emSize, &metricsStr); |
| output_scalar(metrics.fStrikeoutThickness, emSize, &metricsStr); |
| output_scalar(metrics.fStrikeoutPosition, emSize, &metricsStr); |
| metricsStr = strip_final(metricsStr); |
| fprintf(out, "%s\n};\n\n", metricsStr.c_str()); |
| } |
| |
| struct FontWritten { |
| const char* fFontName; |
| NamedFontStyle fNamedStyle; |
| }; |
| |
| static SkTDArray<FontWritten> gWritten; |
| |
| static int written_index(const FontDesc& fontDesc) { |
| for (int index = 0; index < gWritten.count(); ++index) { |
| const FontWritten& writ = gWritten[index]; |
| if (!strcmp(fontDesc.fFontName, writ.fFontName) && |
| fontDesc.fNamedStyle.fStyle == writ.fNamedStyle.fStyle) |
| { |
| return index; |
| } |
| } |
| return -1; |
| } |
| |
| static void generate_fonts(const char* basepath) { |
| FILE* out = nullptr; |
| for (int index = 0; index < gFontsCount; ++index) { |
| FontDesc& fontDesc = gFonts[index]; |
| if ((index & 3) == 0) { |
| out = font_header(fontDesc.fGenericName); |
| } |
| int fontIndex = written_index(fontDesc); |
| if (fontIndex >= 0) { |
| fontDesc.fFontIndex = fontIndex; |
| continue; |
| } |
| SkString filepath(SkOSPath::Join(basepath, fontDesc.fFile)); |
| SkASSERTF(sk_exists(filepath.c_str()), "The file %s does not exist.", filepath.c_str()); |
| sk_sp<SkTypeface> resourceTypeface = SkTypeface::MakeFromFile(filepath.c_str()); |
| SkASSERTF(resourceTypeface, "The file %s is not a font.", filepath.c_str()); |
| output_font(std::move(resourceTypeface), fontDesc.fFontName, fontDesc.fNamedStyle, out); |
| fontDesc.fFontIndex = gWritten.count(); |
| FontWritten* writ = gWritten.append(); |
| writ->fFontName = fontDesc.fFontName; |
| writ->fNamedStyle = fontDesc.fNamedStyle; |
| if ((index & 3) == 3) { |
| fclose(out); |
| } |
| } |
| } |
| |
| static const char* slant_to_string(SkFontStyle::Slant slant) { |
| switch (slant) { |
| case SkFontStyle::kUpright_Slant: return "SkFontStyle::kUpright_Slant"; |
| case SkFontStyle::kItalic_Slant : return "SkFontStyle::kItalic_Slant" ; |
| case SkFontStyle::kOblique_Slant: return "SkFontStyle::kOblique_Slant"; |
| default: SK_ABORT("Unknown slant"); return ""; |
| } |
| } |
| |
| static void generate_index(const char* defaultName) { |
| FILE* out = font_header("index"); |
| fprintf(out, "static SkTestFontData gTestFonts[] = {\n"); |
| for (const FontWritten& writ : gWritten) { |
| const char* name = writ.fFontName; |
| SkString strippedStr = strip_spaces(SkString(name)); |
| strippedStr.appendf("%s", writ.fNamedStyle.fName); |
| const char* strip = strippedStr.c_str(); |
| fprintf(out, |
| " { %sPoints, %sVerbs, %sCharCodes,\n" |
| " %sCharCodesCount, %sWidths,\n" |
| " %sMetrics, \"Toy %s\", SkFontStyle(%d,%d,%s), nullptr\n" |
| " },\n", |
| strip, strip, strip, strip, strip, strip, name, |
| writ.fNamedStyle.fStyle.weight(), writ.fNamedStyle.fStyle.width(), |
| slant_to_string(writ.fNamedStyle.fStyle.slant())); |
| } |
| fprintf(out, "};\n\n"); |
| fprintf(out, "const int gTestFontsCount = (int) SK_ARRAY_COUNT(gTestFonts);\n\n"); |
| fprintf(out, |
| "struct SubFont {\n" |
| " const char* fName;\n" |
| " SkFontStyle fStyle;\n" |
| " SkTestFontData& fFont;\n" |
| " const char* fFile;\n" |
| "};\n\n" |
| "const SubFont gSubFonts[] = {\n"); |
| int defaultIndex = -1; |
| for (int subIndex = 0; subIndex < gFontsCount; subIndex++) { |
| const FontDesc& desc = gFonts[subIndex]; |
| if (defaultIndex < 0 && !strcmp(defaultName, desc.fGenericName)) { |
| defaultIndex = subIndex; |
| } |
| fprintf(out, |
| " { \"%s\", SkFontStyle(%d,%d,%s), gTestFonts[%d], \"%s\" },\n", |
| desc.fGenericName, |
| desc.fNamedStyle.fStyle.weight(), desc.fNamedStyle.fStyle.width(), |
| slant_to_string(desc.fNamedStyle.fStyle.slant()), desc.fFontIndex, desc.fFile); |
| } |
| for (int subIndex = 0; subIndex < gFontsCount; subIndex++) { |
| const FontDesc& desc = gFonts[subIndex]; |
| fprintf(out, |
| " { \"Toy %s\", SkFontStyle(%d,%d,%s), gTestFonts[%d], \"%s\" },\n", |
| desc.fFontName, |
| desc.fNamedStyle.fStyle.weight(), desc.fNamedStyle.fStyle.width(), |
| slant_to_string(desc.fNamedStyle.fStyle.slant()), 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); |
| fclose(out); |
| } |
| |
| int main(int , char * const []) { |
| generate_fonts("/Library/Fonts/"); |
| generate_index(DEFAULT_FONT_NAME); |
| return 0; |
| } |
