[PDF] Optimize W-array generation with respect to subsetted fonts and add test.
Testing framework originally from http://codereview.appspot.com/4916044
Review URL: http://codereview.appspot.com/5379041
git-svn-id: http://skia.googlecode.com/svn/trunk@2667 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/tests/WArrayTest.cpp b/tests/WArrayTest.cpp
new file mode 100644
index 0000000..428ca5f
--- /dev/null
+++ b/tests/WArrayTest.cpp
@@ -0,0 +1,219 @@
+/*
+ * Copyright 2011 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include "Test.h"
+
+// Include the implementation so we can make an appropriate template instance.
+#include "SkAdvancedTypefaceMetrics.cpp"
+
+using namespace skia_advanced_typeface_metrics_utils;
+
+namespace {
+
+// Negative values and zeros in a range plus trailing zeros.
+// 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14
+const int16_t data1[] = {-1, 0, -3, 4, 5, 6, 7, 0, 0, 0, 8, 0, 0, 0, 0};
+const char* expected1 = "0[-1 0 -3 4 5 6 7 0 0 0 8]";
+
+// Run with leading and trailing zeros.
+// Test rules: d 0 1 2 3 4 5 6 7 8 9 10 11
+const int16_t data2[] = {0, 0, 0, 100, 100, 100, 100, 100, 100, 100, 0, 0};
+const char* expected2 = "3 9 100";
+
+// Removing 0's from a range.
+// Test rules: a 0 1 2 3 4 5 6 7 8 9 10 11
+const int16_t data3[] = {1, 2, 0, 0, 0, 3, 4, 0, 0, 0, 0, 5};
+const char* expected3 = "0[1 2 0 0 0 3 4] 11[5]";
+
+// Removing 0's from a run/range and between runs.
+// Test rules: a, b 0 1 2 3 4 5 6 7 8 9 10 11 12 14 15
+const int16_t data4[] = {1, 0, 0, 0, 1, 2, 2, 2, 3, 0, 0, 0, 0, 3, 4};
+const char* expected4 = "0[1 0 0 0 1] 5 7 2 8[3] 13[3 4]";
+
+// Runs that starts outside a range.
+// Test rules: a, e 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
+const int16_t data5[] = {1, 1, 2, 3, 0, 0, 0, 0, 5, 5, 6, 7, 0, 0, 0, 0, 8, 0};
+const char* expected5 = "0 1 1 2[2 3] 8 9 5 10[6 7] 16[8]";
+
+// Zeros and runs that should be broken out.
+// Test rules: a, b, e 0 1 2 3 4 5 6 7 8 9 10 11 12 13
+const int16_t data6[] = {1, 0, 0, 0, 0, 1, 2, 3, 3, 4, 5, 5, 5, 6};
+const char* expected6 = "0[1] 5[1 2 3 3 4] 10 12 5 13[6]";
+
+// Don't cares that aren't enough to break out a run.
+// Test rules: c 0 1 2 3 4 5
+const int16_t data7[] = {1, 2, 10, 11, 2, 3};
+const char* expected7 = "0[1 2 10 11 2 3]";
+const uint32_t subset7[] = {0, 1, 4, 5};
+const char* expectedSubset7 = "0[1 2 0 0 2 3]";
+
+// Don't cares that are enough to break out a run.
+// Test rules: c 0 1 2 3 4 5 6
+const int16_t data8[] = {1, 2, 10, 11, 12, 2, 3};
+const char* expected8 = "0[1 2 10 11 12 2 3]";
+const uint32_t subset8[] = {0, 1, 5, 6};
+const char* expectedSubset8 = "0[1] 1 5 2 6[3]";
+
+// Leading don't cares.
+// Test rules: d 0 1 2 3 4
+const int16_t data9[] = {1, 1, 10, 2, 3};
+const char* expected9 = "0 1 1 2[10 2 3]";
+const uint32_t subset9[] = {0, 1, 3, 4};
+const char* expectedSubset9 = "0 1 1 3[2 3]";
+
+// Almost run of don't cares inside a range.
+// Test rules: c 0 1 2 3 4 5
+const int16_t data10[] = {1, 2, 10, 11, 12, 3};
+const char* expected10 = "0[1 2 10 11 12 3]";
+const uint32_t subset10[] = {0, 1, 5};
+const char* expectedSubset10 = "0[1 2 0 0 0 3]";
+
+// Run of don't cares inside a range.
+// Test rules: c 0 1 2 3 4 5 6
+const int16_t data11[] = {1, 2, 10, 11, 12, 13, 3};
+const char* expected11 = "0[1 2 10 11 12 13 3]";
+const uint32_t subset11[] = {0, 1, 6};
+const char* expectedSubset11 = "0[1 2] 6[3]";
+
+// Almost run within a range with leading don't cares.
+// Test rules: c 0 1 2 3 4 5 6
+const int16_t data12[] = {1, 10, 11, 2, 12, 13, 3};
+const char* expected12 = "0[1 10 11 2 12 13 3]";
+const uint32_t subset12[] = {0, 3, 6};
+const char* expectedSubset12 = "0[1 0 0 2 0 0 3]";
+
+// Run within a range with leading don't cares.
+// Test rules: c 0 1 2 3 4 5 6 7
+const int16_t data13[] = {1, 10, 11, 2, 2, 12, 13, 3};
+const char* expected13 = "0[1 10 11 2 2 12 13 3]";
+const uint32_t subset13[] = {0, 3, 4, 7};
+const char* expectedSubset13 = "0[1] 1 6 2 7[3]";
+
+// Enough don't cares to breakup something.
+// Test rules: a 0 1 2 3 4 5
+const int16_t data14[] = {1, 0, 0, 0, 0, 2};
+const char* expected14 = "0[1] 5[2]";
+const uint32_t subset14[] = {0, 5};
+const char* expectedSubset14 = "0[1] 5[2]";
+
+}
+
+static SkString stringify_advance_data(
+ SkAdvancedTypefaceMetrics::AdvanceMetric<int16_t>* data) {
+ SkString result;
+ bool leadingSpace = false;
+ while (data != NULL) {
+ if (leadingSpace) {
+ result.appendf(" ");
+ } else {
+ leadingSpace = true;
+ }
+ switch(data->fType) {
+ case SkAdvancedTypefaceMetrics::AdvanceMetric<int16_t>::kRun:
+ result.appendf("%d %d %d", data->fStartId, data->fEndId,
+ data->fAdvance[0]);
+ break;
+ case SkAdvancedTypefaceMetrics::AdvanceMetric<int16_t>::kRange:
+ result.appendf("%d[", data->fStartId);
+ for (int i = 0; i < data->fAdvance.count(); ++i) {
+ if (i > 0) {
+ result.appendf(" ");
+ }
+ result.appendf("%d", data->fAdvance[i]);
+ }
+ result.appendf("]");
+ break;
+ case SkAdvancedTypefaceMetrics::AdvanceMetric<int16_t>::kDefault:
+ result.appendf("<Default=%d>", data->fAdvance[0]);
+ break;
+ }
+ data = data->fNext.get();
+ }
+ return result;
+}
+
+class TestWData {
+ public:
+ TestWData(skiatest::Reporter* reporter,
+ const int16_t advances[],
+ int advanceLen,
+ const uint32_t subset[],
+ int subsetLen,
+ const char* expected)
+ : fAdvances(advances)
+ , fAdvancesLen(advanceLen)
+ , fSubset(subset)
+ , fSubsetLen(subsetLen)
+ , fExpected(expected) {
+ REPORTER_ASSERT(reporter, RunTest());
+ }
+
+ private:
+ const int16_t* fAdvances;
+ const int fAdvancesLen;
+ const uint32_t* fSubset;
+ const int fSubsetLen;
+ const char* fExpected;
+
+ static bool getAdvance(TestWData* testCase, int gId, int16_t* advance) {
+ if (gId >= 0 && gId < testCase->fAdvancesLen) {
+ *advance = testCase->fAdvances[gId];
+ return true;
+ }
+ return false;
+ }
+
+ bool RunTest() {
+ SkTScopedPtr<SkAdvancedTypefaceMetrics::AdvanceMetric<int16_t> > result;
+ result.reset(getAdvanceData(this, fAdvancesLen, fSubset, fSubsetLen,
+ getAdvance));
+
+ SkString stringResult = stringify_advance_data(result.get());
+ if (!stringResult.equals(fExpected)) {
+ printf("Expected: %s\n Result: %s\n", fExpected,
+ stringResult.c_str());
+ return false;
+ }
+ return true;
+ }
+};
+
+static void TestWArray(skiatest::Reporter* reporter) {
+ TestWData(reporter, data1, SK_ARRAY_COUNT(data1), NULL, 0, expected1);
+ TestWData(reporter, data2, SK_ARRAY_COUNT(data2), NULL, 0, expected2);
+ TestWData(reporter, data3, SK_ARRAY_COUNT(data3), NULL, 0, expected3);
+ TestWData(reporter, data4, SK_ARRAY_COUNT(data4), NULL, 0, expected4);
+ TestWData(reporter, data5, SK_ARRAY_COUNT(data5), NULL, 0, expected5);
+ TestWData(reporter, data6, SK_ARRAY_COUNT(data6), NULL, 0, expected6);
+ TestWData(reporter, data7, SK_ARRAY_COUNT(data7), NULL, 0, expected7);
+ TestWData(reporter, data7, SK_ARRAY_COUNT(data7), subset7,
+ SK_ARRAY_COUNT(subset7), expectedSubset7);
+ TestWData(reporter, data8, SK_ARRAY_COUNT(data8), NULL, 0, expected8);
+ TestWData(reporter, data8, SK_ARRAY_COUNT(data8), subset8,
+ SK_ARRAY_COUNT(subset8), expectedSubset8);
+ TestWData(reporter, data9, SK_ARRAY_COUNT(data9), NULL, 0, expected9);
+ TestWData(reporter, data9, SK_ARRAY_COUNT(data9), subset9,
+ SK_ARRAY_COUNT(subset9), expectedSubset9);
+ TestWData(reporter, data10, SK_ARRAY_COUNT(data10), NULL, 0, expected10);
+ TestWData(reporter, data10, SK_ARRAY_COUNT(data10), subset10,
+ SK_ARRAY_COUNT(subset10), expectedSubset10);
+ TestWData(reporter, data11, SK_ARRAY_COUNT(data11), NULL, 0, expected11);
+ TestWData(reporter, data11, SK_ARRAY_COUNT(data11), subset11,
+ SK_ARRAY_COUNT(subset11), expectedSubset11);
+ TestWData(reporter, data12, SK_ARRAY_COUNT(data12), NULL, 0, expected12);
+ TestWData(reporter, data12, SK_ARRAY_COUNT(data12), subset12,
+ SK_ARRAY_COUNT(subset12), expectedSubset12);
+ TestWData(reporter, data13, SK_ARRAY_COUNT(data13), NULL, 0, expected13);
+ TestWData(reporter, data13, SK_ARRAY_COUNT(data13), subset13,
+ SK_ARRAY_COUNT(subset13), expectedSubset13);
+ TestWData(reporter, data14, SK_ARRAY_COUNT(data14), NULL, 0, expected14);
+ TestWData(reporter, data14, SK_ARRAY_COUNT(data14), subset14,
+ SK_ARRAY_COUNT(subset14), expectedSubset14);
+}
+
+#include "TestClassDef.h"
+DEFINE_TESTCLASS("WArray", WArrayTest, TestWArray)