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378 lines
14 KiB
378 lines
14 KiB
/*
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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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#include "Test.h"
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#include "Resources.h"
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#include "SkCanvas.h"
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#include "SkCommandLineFlags.h"
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#include "SkFixed.h"
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#include "SkFont.h"
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#include "SkFontMgr_android.h"
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#include "SkFontMgr_android_parser.h"
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#include "SkOSFile.h"
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#include "SkTypeface.h"
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#include <cmath>
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#include <cstdio>
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DECLARE_bool(verboseFontMgr);
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int CountFallbacks(SkTDArray<FontFamily*> fontFamilies) {
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int countOfFallbackFonts = 0;
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for (int i = 0; i < fontFamilies.count(); i++) {
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if (fontFamilies[i]->fIsFallbackFont) {
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countOfFallbackFonts++;
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}
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}
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return countOfFallbackFonts;
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}
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//https://tools.ietf.org/html/rfc5234#appendix-B.1
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static bool isALPHA(int c) {
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return ('a' <= c && c <= 'z') || ('A' <= c && c <= 'Z');
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}
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//https://tools.ietf.org/html/rfc5234#appendix-B.1
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static bool isDIGIT(int c) {
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return ('0' <= c && c <= '9');
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}
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static void ValidateLoadedFonts(SkTDArray<FontFamily*> fontFamilies, const char* firstExpectedFile,
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skiatest::Reporter* reporter) {
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REPORTER_ASSERT(reporter, fontFamilies[0]->fNames.count() == 5);
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REPORTER_ASSERT(reporter, !strcmp(fontFamilies[0]->fNames[0].c_str(), "sans-serif"));
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REPORTER_ASSERT(reporter,
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!strcmp(fontFamilies[0]->fFonts[0].fFileName.c_str(), firstExpectedFile));
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REPORTER_ASSERT(reporter, !fontFamilies[0]->fIsFallbackFont);
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// Check that the languages are all sane.
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for (const auto& fontFamily : fontFamilies) {
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for (const auto& lang : fontFamily->fLanguages) {
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const SkString& langString = lang.getTag();
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for (size_t i = 0; i < langString.size(); ++i) {
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int c = langString[i];
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REPORTER_ASSERT(reporter, isALPHA(c) || isDIGIT(c) || '-' == c);
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}
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}
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}
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// All file names in the test configuration files start with a capital letter.
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// This is not a general requirement, but it is true of all the test configuration data.
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// Verifying ensures the filenames have been read sanely and have not been 'sliced'.
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for (int i = 0; i < fontFamilies.count(); ++i) {
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FontFamily& family = *fontFamilies[i];
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for (int j = 0; j < family.fFonts.count(); ++j) {
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FontFileInfo& file = family.fFonts[j];
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REPORTER_ASSERT(reporter, !file.fFileName.isEmpty() &&
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file.fFileName[0] >= 'A' &&
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file.fFileName[0] <= 'Z');
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}
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}
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}
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static void DumpFiles(const FontFamily& fontFamily) {
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for (int j = 0; j < fontFamily.fFonts.count(); ++j) {
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const FontFileInfo& ffi = fontFamily.fFonts[j];
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SkDebugf(" file (%d) %s#%d", ffi.fWeight, ffi.fFileName.c_str(), ffi.fIndex);
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for (const auto& coordinate : ffi.fVariationDesignPosition) {
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SkDebugf(" @'%c%c%c%c'=%f",
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(coordinate.axis >> 24) & 0xFF,
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(coordinate.axis >> 16) & 0xFF,
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(coordinate.axis >> 8) & 0xFF,
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(coordinate.axis ) & 0xFF,
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coordinate.value);
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}
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SkDebugf("\n");
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}
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}
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static void DumpLoadedFonts(SkTDArray<FontFamily*> fontFamilies, const char* label) {
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if (!FLAGS_verboseFontMgr) {
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return;
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}
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SkDebugf("\n--- Dumping %s\n", label);
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for (int i = 0; i < fontFamilies.count(); ++i) {
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SkDebugf("Family %d:\n", i);
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switch(fontFamilies[i]->fVariant) {
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case kElegant_FontVariant: SkDebugf(" elegant\n"); break;
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case kCompact_FontVariant: SkDebugf(" compact\n"); break;
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default: break;
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}
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SkDebugf(" basePath %s\n", fontFamilies[i]->fBasePath.c_str());
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if (!fontFamilies[i]->fLanguages.empty()) {
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SkDebugf(" language");
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for (const auto& lang : fontFamilies[i]->fLanguages) {
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SkDebugf(" %s", lang.getTag().c_str());
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}
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SkDebugf("\n");
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}
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for (int j = 0; j < fontFamilies[i]->fNames.count(); ++j) {
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SkDebugf(" name %s\n", fontFamilies[i]->fNames[j].c_str());
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}
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DumpFiles(*fontFamilies[i]);
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fontFamilies[i]->fallbackFamilies.foreach(
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[](SkString, std::unique_ptr<FontFamily>* fallbackFamily) {
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SkDebugf(" Fallback for: %s\n", (*fallbackFamily)->fFallbackFor.c_str());
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DumpFiles(*(*fallbackFamily).get());
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}
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);
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}
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SkDebugf("\n\n");
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}
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template <int N, typename T> static double test_parse_fixed_r(skiatest::Reporter* reporter,
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double low, double high, double inc)
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{
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double SK_FixedMax_double = nextafter(1 << (sizeof(T) * CHAR_BIT - N - 1), 0.0);
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double SK_FixedEpsilon_double = (1.0 / (1 << N));
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double maxError = 0;
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char buffer[64];
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for (double f = low; f < high; f += inc) {
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SkString s;
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// 'sprintf' formatting as expected depends on the current locale being "C".
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// We currently expect tests and tools to run in the "C" locale.
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sprintf(buffer, "%.20f", f);
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T fix;
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bool b = parse_fixed<N>(buffer, &fix);
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if (b) {
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double f2 = fix * SK_FixedEpsilon_double;
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double error = fabs(f - f2);
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REPORTER_ASSERT(reporter, error <= SK_FixedEpsilon_double);
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maxError = SkTMax(maxError, error);
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} else {
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REPORTER_ASSERT(reporter, f < -SK_FixedMax_double || SK_FixedMax_double < f);
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}
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}
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//SkDebugf("maxError: %.20f\n", maxError);
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return maxError;
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}
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static void test_parse_fixed(skiatest::Reporter* reporter) {
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test_parse_fixed_r<27, int32_t>(reporter, -8.1, -7.9, 0.000001);
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test_parse_fixed_r<27, int32_t>(reporter, -0.1, 0.1, 0.000001);
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test_parse_fixed_r<27, int32_t>(reporter, 7.9, 8.1, 0.000001);
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test_parse_fixed_r<16, int32_t>(reporter, -0.125, 0.125, 1.0 / (1 << 19));
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test_parse_fixed_r<16, int32_t>(reporter, -32768.125, -32766.875, 1.0 / (1 << 17));
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test_parse_fixed_r<16, int32_t>(reporter, 32766.875, 32768.125, 1.0 / (1 << 17));
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test_parse_fixed_r<16, int32_t>(reporter, -1.1, 1.1, 0.0001);
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SkFixed fix;
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REPORTER_ASSERT(reporter, !parse_fixed<27>("-17.1", &fix));
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REPORTER_ASSERT(reporter, !parse_fixed<16>("32768", &fix));
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REPORTER_ASSERT(reporter, !parse_fixed<16>("", &fix));
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REPORTER_ASSERT(reporter, !parse_fixed<16>(".", &fix));
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REPORTER_ASSERT(reporter, !parse_fixed<16>("123.", &fix));
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REPORTER_ASSERT(reporter, !parse_fixed<16>("a", &fix));
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REPORTER_ASSERT(reporter, !parse_fixed<16>(".123a", &fix));
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}
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DEF_TEST(FontMgrAndroidParser, reporter) {
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test_parse_fixed(reporter);
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bool resourcesMissing = false;
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SkTDArray<FontFamily*> preV17FontFamilies;
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SkFontMgr_Android_Parser::GetCustomFontFamilies(preV17FontFamilies,
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SkString("/custom/font/path/"),
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GetResourcePath("android_fonts/pre_v17/system_fonts.xml").c_str(),
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GetResourcePath("android_fonts/pre_v17/fallback_fonts.xml").c_str());
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if (preV17FontFamilies.count() > 0) {
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REPORTER_ASSERT(reporter, preV17FontFamilies.count() == 14);
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REPORTER_ASSERT(reporter, CountFallbacks(preV17FontFamilies) == 10);
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DumpLoadedFonts(preV17FontFamilies, "pre version 17");
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ValidateLoadedFonts(preV17FontFamilies, "Roboto-Regular.ttf", reporter);
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} else {
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resourcesMissing = true;
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}
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preV17FontFamilies.deleteAll();
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SkTDArray<FontFamily*> v17FontFamilies;
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SkFontMgr_Android_Parser::GetCustomFontFamilies(v17FontFamilies,
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SkString("/custom/font/path/"),
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GetResourcePath("android_fonts/v17/system_fonts.xml").c_str(),
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GetResourcePath("android_fonts/v17/fallback_fonts.xml").c_str(),
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GetResourcePath("android_fonts/v17").c_str());
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if (v17FontFamilies.count() > 0) {
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REPORTER_ASSERT(reporter, v17FontFamilies.count() == 56);
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REPORTER_ASSERT(reporter, CountFallbacks(v17FontFamilies) == 46);
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DumpLoadedFonts(v17FontFamilies, "version 17");
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ValidateLoadedFonts(v17FontFamilies, "Roboto-Regular.ttf", reporter);
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} else {
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resourcesMissing = true;
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}
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v17FontFamilies.deleteAll();
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SkTDArray<FontFamily*> v22FontFamilies;
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SkFontMgr_Android_Parser::GetCustomFontFamilies(v22FontFamilies,
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SkString("/custom/font/path/"),
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GetResourcePath("android_fonts/v22/fonts.xml").c_str(),
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nullptr);
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if (v22FontFamilies.count() > 0) {
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REPORTER_ASSERT(reporter, v22FontFamilies.count() == 54);
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REPORTER_ASSERT(reporter, CountFallbacks(v22FontFamilies) == 42);
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DumpLoadedFonts(v22FontFamilies, "version 22");
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ValidateLoadedFonts(v22FontFamilies, "Roboto-Thin.ttf", reporter);
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} else {
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resourcesMissing = true;
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}
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v22FontFamilies.deleteAll();
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if (resourcesMissing) {
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SkDebugf("---- Resource files missing for FontConfigParser test\n");
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}
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}
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DEF_TEST(FontMgrAndroidLegacyMakeTypeface, reporter) {
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constexpr char fontsXmlFilename[] = "fonts/fonts.xml";
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SkString basePath = GetResourcePath("fonts/");
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SkString fontsXml = GetResourcePath(fontsXmlFilename);
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if (!sk_exists(fontsXml.c_str())) {
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ERRORF(reporter, "file missing: %s\n", fontsXmlFilename);
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return;
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}
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SkFontMgr_Android_CustomFonts custom;
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custom.fSystemFontUse = SkFontMgr_Android_CustomFonts::kOnlyCustom;
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custom.fBasePath = basePath.c_str();
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custom.fFontsXml = fontsXml.c_str();
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custom.fFallbackFontsXml = nullptr;
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custom.fIsolated = false;
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sk_sp<SkFontMgr> fm(SkFontMgr_New_Android(&custom));
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sk_sp<SkTypeface> t(fm->legacyMakeTypeface("non-existent-font", SkFontStyle()));
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REPORTER_ASSERT(reporter, nullptr == t);
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}
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static bool bitmap_compare(const SkBitmap& ref, const SkBitmap& test) {
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for (int y = 0; y < test.height(); ++y) {
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for (int x = 0; x < test.width(); ++x) {
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SkColor testColor = test.getColor(x, y);
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SkColor refColor = ref.getColor(x, y);
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if (refColor != testColor) {
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return false;
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}
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}
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}
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return true;
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}
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DEF_TEST(FontMgrAndroidSystemVariableTypeface, reporter) {
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constexpr char fontsXmlFilename[] = "fonts/fonts.xml";
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SkString basePath = GetResourcePath("fonts/");
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SkString fontsXml = GetResourcePath(fontsXmlFilename);
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if (!sk_exists(fontsXml.c_str())) {
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ERRORF(reporter, "file missing: %s\n", fontsXmlFilename);
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return;
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}
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SkFontMgr_Android_CustomFonts custom;
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custom.fSystemFontUse = SkFontMgr_Android_CustomFonts::kOnlyCustom;
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custom.fBasePath = basePath.c_str();
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custom.fFontsXml = fontsXml.c_str();
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custom.fFallbackFontsXml = nullptr;
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custom.fIsolated = false;
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sk_sp<SkFontMgr> fontMgr(SkFontMgr_New_Android(&custom));
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// "sans-serif" in "fonts/fonts.xml" is "fonts/Distortable.ttf"
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sk_sp<SkTypeface> typeface(fontMgr->legacyMakeTypeface("sans-serif", SkFontStyle()));
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SkBitmap bitmapStream;
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bitmapStream.allocN32Pixels(64, 64);
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SkCanvas canvasStream(bitmapStream);
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canvasStream.drawColor(SK_ColorWHITE);
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SkBitmap bitmapClone;
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bitmapClone.allocN32Pixels(64, 64);
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SkCanvas canvasClone(bitmapClone);
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canvasStream.drawColor(SK_ColorWHITE);
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SkPaint paint;
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paint.setColor(SK_ColorGRAY);
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paint.setAntiAlias(true);
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constexpr float kTextSize = 20;
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std::unique_ptr<SkStreamAsset> distortableStream(
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GetResourceAsStream("fonts/Distortable.ttf"));
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if (!distortableStream) {
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return;
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}
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SkPoint point = SkPoint::Make(20.0f, 20.0f);
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SkFourByteTag tag = SkSetFourByteTag('w', 'g', 'h', 't');
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for (int i = 0; i < 10; ++i) {
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SkScalar styleValue =
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SkDoubleToScalar(0.5 + i * ((2.0 - 0.5) / 10));
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SkFontArguments::VariationPosition::Coordinate
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coordinates[] = {{tag, styleValue}};
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SkFontArguments::VariationPosition
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position = {coordinates, SK_ARRAY_COUNT(coordinates)};
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SkFont fontStream(
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fontMgr->makeFromStream(distortableStream->duplicate(),
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SkFontArguments().setVariationDesignPosition(position)),
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kTextSize);
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fontStream.setEdging(SkFont::Edging::kSubpixelAntiAlias);
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SkFont fontClone(
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typeface->makeClone(SkFontArguments().setVariationDesignPosition(position)), kTextSize);
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fontClone.setEdging(SkFont::Edging::kSubpixelAntiAlias);
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constexpr char text[] = "abc";
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canvasStream.drawColor(SK_ColorWHITE);
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canvasStream.drawString(text, point.fX, point.fY, fontStream, paint);
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canvasClone.drawColor(SK_ColorWHITE);
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canvasClone.drawString(text, point.fX, point.fY, fontClone, paint);
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bool success = bitmap_compare(bitmapStream, bitmapClone);
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REPORTER_ASSERT(reporter, success);
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}
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}
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DEF_TEST(FontMgrAndroidSystemFallbackFor, reporter) {
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constexpr char fontsXmlFilename[] = "fonts/fonts.xml";
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SkString basePath = GetResourcePath("fonts/");
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SkString fontsXml = GetResourcePath(fontsXmlFilename);
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if (!sk_exists(fontsXml.c_str())) {
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ERRORF(reporter, "file missing: %s\n", fontsXmlFilename);
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return;
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}
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SkFontMgr_Android_CustomFonts custom;
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custom.fSystemFontUse = SkFontMgr_Android_CustomFonts::kOnlyCustom;
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custom.fBasePath = basePath.c_str();
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custom.fFontsXml = fontsXml.c_str();
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custom.fFallbackFontsXml = nullptr;
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custom.fIsolated = false;
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sk_sp<SkFontMgr> fontMgr(SkFontMgr_New_Android(&custom));
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// "sans-serif" in "fonts/fonts.xml" is "fonts/Distortable.ttf", which doesn't have a '!'
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// but "TestTTC" has a bold font which does have '!' and is marked as fallback for "sans-serif"
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// and should take precedence over the same font marked as normal weight next to it.
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sk_sp<SkTypeface> typeface(fontMgr->matchFamilyStyleCharacter(
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"sans-serif", SkFontStyle(), nullptr, 0, '!'));
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REPORTER_ASSERT(reporter, typeface->fontStyle() == SkFontStyle::Bold());
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}
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