| /* | |
| * 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_data.cpp | |
| // which is read by ./tools/sk_tool_utils_font.cpp | |
| #include "Resources.h" | |
| #include "SkOSFile.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" | |
| static struct FontDesc { | |
| const char* fName; | |
| SkTypeface::Style fStyle; | |
| const char* fFont; | |
| const char* fFile; | |
| int fFontIndex; | |
| } gFonts[] = { | |
| {"monospace", SkTypeface::kNormal, "Liberation Mono", "LiberationMono-Regular.ttf", -1}, | |
| {"monospace", SkTypeface::kBold, "Liberation Mono", "LiberationMono-Bold.ttf", -1}, | |
| {"monospace", SkTypeface::kItalic, "Liberation Mono", "LiberationMono-Italic.ttf", -1}, | |
| {"monospace", SkTypeface::kBoldItalic, "Liberation Mono", "LiberationMono-BoldItalic.ttf", -1}, | |
| {"sans-serif", SkTypeface::kNormal, "Liberation Sans", "LiberationSans-Regular.ttf", -1}, | |
| {"sans-serif", SkTypeface::kBold, "Liberation Sans", "LiberationSans-Bold.ttf", -1}, | |
| {"sans-serif", SkTypeface::kItalic, "Liberation Sans", "LiberationSans-Italic.ttf", -1}, | |
| {"sans-serif", SkTypeface::kBoldItalic, "Liberation Sans", "LiberationSans-BoldItalic.ttf", -1}, | |
| {"serif", SkTypeface::kNormal, "Liberation Serif", "LiberationSerif-Regular.ttf", -1}, | |
| {"serif", SkTypeface::kBold, "Liberation Serif", "LiberationSerif-Bold.ttf", -1}, | |
| {"serif", SkTypeface::kItalic, "Liberation Serif", "LiberationSerif-Italic.ttf", -1}, | |
| {"serif", SkTypeface::kBoldItalic, "Liberation Serif", "LiberationSerif-BoldItalic.ttf", -1}, | |
| }; | |
| const int gFontsCount = (int) SK_ARRAY_COUNT(gFonts); | |
| const char* gStyleName[] = { | |
| "Normal", | |
| "Bold", | |
| "Italic", | |
| "BoldItalic", | |
| }; | |
| 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 "; | |
| 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(".cpp"); | |
| 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 (char ch = 0x20; 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; | |
| } | |
| } | |
| 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(SkTypeface* face, const char* name, SkTypeface::Style 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); | |
| SkSafeUnref(paint.setTypeface(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", gStyleName[style]); | |
| 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"); | |
| // FIXME: all fonts are now 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); | |
| metricsStr = strip_final(metricsStr); | |
| fprintf(out, "%s\n};\n\n", metricsStr.c_str()); | |
| } | |
| struct FontWritten { | |
| const char* fName; | |
| SkTypeface::Style fStyle; | |
| }; | |
| 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.fFont, writ.fName) && fontDesc.fStyle == writ.fStyle) { | |
| return index; | |
| } | |
| } | |
| return -1; | |
| } | |
| static void generate_fonts() { | |
| FILE* out = NULL; | |
| for (int index = 0; index < gFontsCount; ++index) { | |
| FontDesc& fontDesc = gFonts[index]; | |
| if ((index & 3) == 0) { | |
| out = font_header(fontDesc.fName); | |
| } | |
| int fontIndex = written_index(fontDesc); | |
| if (fontIndex >= 0) { | |
| fontDesc.fFontIndex = fontIndex; | |
| continue; | |
| } | |
| SkTypeface* systemTypeface = SkTypeface::CreateFromName(fontDesc.fFont, fontDesc.fStyle); | |
| SkASSERT(systemTypeface); | |
| SkString filepath("/Library/Fonts/"); | |
| filepath.append(fontDesc.fFile); | |
| SkASSERT(sk_exists(filepath.c_str())); | |
| SkTypeface* resourceTypeface = SkTypeface::CreateFromFile(filepath.c_str()); | |
| SkASSERT(resourceTypeface); | |
| output_font(resourceTypeface, fontDesc.fFont, fontDesc.fStyle, out); | |
| fontDesc.fFontIndex = gWritten.count(); | |
| FontWritten* writ = gWritten.append(); | |
| writ->fName = fontDesc.fFont; | |
| writ->fStyle = fontDesc.fStyle; | |
| if ((index & 3) == 3) { | |
| fclose(out); | |
| } | |
| } | |
| } | |
| static void generate_index(const char* defaultName) { | |
| int fontCount = gWritten.count(); | |
| FILE* out = font_header("index"); | |
| int fontIndex; | |
| #if 0 | |
| // currently generated files are inlined one after the other. | |
| // if the inlining is undesirable, generate externs using the code below | |
| // (additional code required to add include files) | |
| for (fontIndex = 0; fontIndex < fontCount; ++fontIndex) { | |
| const FontWritten& writ = gWritten[fontIndex]; | |
| const char* name = writ.fName; | |
| SkString strippedStr = strip_spaces(SkString(name)); | |
| strippedStr.appendf("%s", gStyleName[writ.fStyle]); | |
| const char* strip = strippedStr.c_str(); | |
| fprintf(out, | |
| "extern const SkScalar %sPoints[];\n" | |
| "extern const unsigned char %sVerbs[];\n" | |
| "extern const unsigned %sCharCodes[];\n" | |
| "extern const int %sCharCodesCount;\n" | |
| "extern const SkFixed %sWidths[];\n" | |
| "extern const SkPaint::FontMetrics %sMetrics;\n", | |
| strip, strip, strip, strip, strip, strip); | |
| } | |
| fprintf(out, "\n"); | |
| #endif | |
| fprintf(out, "static SkTestFontData gTestFonts[] = {\n"); | |
| for (fontIndex = 0; fontIndex < fontCount; ++fontIndex) { | |
| const FontWritten& writ = gWritten[fontIndex]; | |
| const char* name = writ.fName; | |
| SkString strippedStr = strip_spaces(SkString(name)); | |
| strippedStr.appendf("%s", gStyleName[writ.fStyle]); | |
| const char* strip = strippedStr.c_str(); | |
| fprintf(out, | |
| " { %sPoints, %sVerbs, %sCharCodes,\n" | |
| " %sCharCodesCount, %sWidths,\n" | |
| " %sMetrics, \"Toy %s\", SkTypeface::k%s, NULL\n" | |
| " },\n", | |
| strip, strip, strip, strip, strip, strip, name, gStyleName[writ.fStyle]); | |
| } | |
| 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" | |
| " SkTypeface::Style 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.fName)) { | |
| defaultIndex = subIndex; | |
| } | |
| fprintf(out, | |
| " { \"%s\", SkTypeface::k%s, gTestFonts[%d], \"%s\" },\n", desc.fName, | |
| gStyleName[desc.fStyle], desc.fFontIndex, desc.fFile); | |
| } | |
| for (int subIndex = 0; subIndex < gFontsCount; subIndex++) { | |
| const FontDesc& desc = gFonts[subIndex]; | |
| fprintf(out, | |
| " { \"Toy %s\", SkTypeface::k%s, gTestFonts[%d], \"%s\" },\n", desc.fFont, | |
| 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); | |
| fclose(out); | |
| } | |
| int main(int , char * const []) { | |
| #ifndef SK_BUILD_FOR_MAC | |
| #error "use fonts installed on Mac" | |
| #endif | |
| generate_fonts(); | |
| generate_index(DEFAULT_FONT_NAME); | |
| return 0; | |
| } |