1/*
2 * Copyright 2011 Google Inc.
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
7
8#include "Test.h"
9
10// Include the implementation so we can make an appropriate template instance.
11#include "SkAdvancedTypefaceMetrics.h"
12
13using namespace skia_advanced_typeface_metrics_utils;
14
15// Negative values and zeros in a range plus trailing zeros.
16//                        0  1   2  3  4  5  6  7  8  9 10 11 12 13 14
17static const int16_t data1[] = {-1, 0, -3, 4, 5, 6, 7, 0, 0, 0, 8, 0, 0, 0, 0};
18static const char* expected1 = "0[-1 0 -3 4 5 6 7 0 0 0 8]";
19
20// Run with leading and trailing zeros.
21// Test rules: d         0  1  2    3    4    5    6    7    8    9 10 11
22static const int16_t data2[] = {0, 0, 0, 100, 100, 100, 100, 100, 100, 100, 0, 0};
23static const char* expected2 = "3 9 100";
24
25// Removing 0's from a range.
26// Test rules: a         0  1  2  3  4  5  6  7  8  9 10 11
27static const int16_t data3[] = {1, 2, 0, 0, 0, 3, 4, 0, 0, 0, 0, 5};
28static const char* expected3 = "0[1 2 0 0 0 3 4] 11[5]";
29
30// Removing 0's from a run/range and between runs.
31// Test rules: a, b      0  1  2  3  4  5  6  7  8  9 10 11 12 14 15
32static const int16_t data4[] = {1, 0, 0, 0, 1, 2, 2, 2, 3, 0, 0, 0, 0, 3, 4};
33static const char* expected4 = "0[1 0 0 0 1] 5 7 2 8[3] 13[3 4]";
34
35// Runs that starts outside a range.
36// Test rules: a, e      0  1  2  3  4  5  6  7  8  9 10 11 12 13 14 15 16 17
37static const int16_t data5[] = {1, 1, 2, 3, 0, 0, 0, 0, 5, 5, 6, 7, 0, 0, 0, 0, 8, 0};
38static const char* expected5 = "0 1 1 2[2 3] 8 9 5 10[6 7] 16[8]";
39
40// Zeros and runs that should be broken out.
41// Test rules: a, b, e   0  1  2  3  4  5  6  7  8  9 10 11 12 13
42static const int16_t data6[] = {1, 0, 0, 0, 0, 1, 2, 3, 3, 4, 5, 5, 5, 6};
43static const char* expected6 = "0[1] 5[1 2 3 3 4] 10 12 5 13[6]";
44
45// Don't cares that aren't enough to break out a run.
46// Test rules: c         0  1   2   3  4  5
47static const int16_t data7[] = {1, 2, 10, 11, 2, 3};
48static const char* expected7 = "0[1 2 10 11 2 3]";
49static const uint32_t subset7[] = {0, 1, 4, 5};
50static const char* expectedSubset7 = "0[1 2 0 0 2 3]";
51
52// Don't cares that are enough to break out a run.
53// Test rules: c         0  1   2   3  4   5  6
54static const int16_t data8[] = {1, 2, 10, 11, 12, 2, 3};
55static const char* expected8 = "0[1 2 10 11 12 2 3]";
56static const uint32_t subset8[] = {0, 1, 5, 6};
57static const char* expectedSubset8 = "0[1] 1 5 2 6[3]";
58
59// Leading don't cares.
60// Test rules: d         0  1   2  3  4
61static const int16_t data9[] = {1, 1, 10, 2, 3};
62static const char* expected9 = "0 1 1 2[10 2 3]";
63static const uint32_t subset9[] = {0, 1, 3, 4};
64static const char* expectedSubset9 = "0 1 1 3[2 3]";
65
66// Almost run of don't cares inside a range.
67// Test rules: c          0  1   2   3   4  5
68static const int16_t data10[] = {1, 2, 10, 11, 12, 3};
69static const char* expected10 = "0[1 2 10 11 12 3]";
70static const uint32_t subset10[] = {0, 1, 5};
71static const char* expectedSubset10 = "0[1 2 0 0 0 3]";
72
73// Run of don't cares inside a range.
74// Test rules: c          0  1   2   3   4   5  6
75static const int16_t data11[] = {1, 2, 10, 11, 12, 13, 3};
76static const char* expected11 = "0[1 2 10 11 12 13 3]";
77static const uint32_t subset11[] = {0, 1, 6};
78static const char* expectedSubset11 = "0[1 2] 6[3]";
79
80// Almost run within a range with leading don't cares.
81// Test rules: c          0   1   2  3   4   5  6
82static const int16_t data12[] = {1, 10, 11, 2, 12, 13, 3};
83static const char* expected12 = "0[1 10 11 2 12 13 3]";
84static const uint32_t subset12[] = {0, 3, 6};
85static const char* expectedSubset12 = "0[1 0 0 2 0 0 3]";
86
87// Run within a range with leading don't cares.
88// Test rules: c          0   1   2  3  4   5   6  7
89static const int16_t data13[] = {1, 10, 11, 2, 2, 12, 13, 3};
90static const char* expected13 = "0[1 10 11 2 2 12 13 3]";
91static const uint32_t subset13[] = {0, 3, 4, 7};
92static const char* expectedSubset13 = "0[1] 1 6 2 7[3]";
93
94// Enough don't cares to breakup something.
95// Test rules: a          0  1  2  3  4  5
96static const int16_t data14[] = {1, 0, 0, 0, 0, 2};
97static const char* expected14 = "0[1] 5[2]";
98static const uint32_t subset14[] = {0, 5};
99static const char* expectedSubset14 = "0[1] 5[2]";
100
101static SkString stringify_advance_data(SkAdvancedTypefaceMetrics::AdvanceMetric<int16_t>* data) {
102    SkString result;
103    bool leadingSpace = false;
104    while (data != NULL) {
105      if (leadingSpace) {
106        result.append(" ");
107      } else {
108        leadingSpace = true;
109      }
110      switch(data->fType) {
111        case SkAdvancedTypefaceMetrics::AdvanceMetric<int16_t>::kRun:
112          result.appendf("%d %d %d", data->fStartId, data->fEndId, data->fAdvance[0]);
113          break;
114        case SkAdvancedTypefaceMetrics::AdvanceMetric<int16_t>::kRange:
115          result.appendf("%d[", data->fStartId);
116          for (int i = 0; i < data->fAdvance.count(); ++i) {
117            if (i > 0) {
118              result.append(" ");
119            }
120            result.appendf("%d", data->fAdvance[i]);
121          }
122          result.append("]");
123          break;
124        case SkAdvancedTypefaceMetrics::AdvanceMetric<int16_t>::kDefault:
125          result.appendf("<Default=%d>", data->fAdvance[0]);
126          break;
127      }
128      data = data->fNext.get();
129    }
130    return result;
131}
132
133class TestWData {
134  public:
135    TestWData(skiatest::Reporter* reporter,
136              const int16_t advances[], int advanceLen,
137              const uint32_t subset[], int subsetLen,
138              const char* expected)
139            : fAdvances(advances)
140            , fAdvancesLen(advanceLen)
141            , fSubset(subset)
142            , fSubsetLen(subsetLen)
143            , fExpected(expected) {
144        REPORTER_ASSERT(reporter, RunTest());
145    }
146
147  private:
148    const int16_t* fAdvances;
149    const int fAdvancesLen;
150    const uint32_t* fSubset;
151    const int fSubsetLen;
152    const char* fExpected;
153
154    static bool getAdvance(void* tc, int gId, int16_t* advance) {
155        TestWData* testCase = (TestWData*)tc;
156        if (gId >= 0 && gId < testCase->fAdvancesLen) {
157            *advance = testCase->fAdvances[gId];
158            return true;
159        }
160        return false;
161    }
162
163    bool RunTest() {
164        SkAutoTDelete<SkAdvancedTypefaceMetrics::AdvanceMetric<int16_t> > result;
165        result.reset(getAdvanceData((void*)this, fAdvancesLen, fSubset, fSubsetLen, getAdvance));
166
167        SkString stringResult = stringify_advance_data(result.get());
168        if (!stringResult.equals(fExpected)) {
169            SkDebugf("Expected: %s\n  Result: %s\n", fExpected, stringResult.c_str());
170            return false;
171        }
172        return true;
173    }
174};
175
176DEF_TEST(WArray, reporter) {
177    TestWData(reporter, data1, SK_ARRAY_COUNT(data1), NULL, 0, expected1);
178    TestWData(reporter, data2, SK_ARRAY_COUNT(data2), NULL, 0, expected2);
179    TestWData(reporter, data3, SK_ARRAY_COUNT(data3), NULL, 0, expected3);
180    TestWData(reporter, data4, SK_ARRAY_COUNT(data4), NULL, 0, expected4);
181    TestWData(reporter, data5, SK_ARRAY_COUNT(data5), NULL, 0, expected5);
182    TestWData(reporter, data6, SK_ARRAY_COUNT(data6), NULL, 0, expected6);
183    TestWData(reporter, data7, SK_ARRAY_COUNT(data7), NULL, 0, expected7);
184    TestWData(reporter, data7, SK_ARRAY_COUNT(data7), subset7,
185              SK_ARRAY_COUNT(subset7), expectedSubset7);
186    TestWData(reporter, data8, SK_ARRAY_COUNT(data8), NULL, 0, expected8);
187    TestWData(reporter, data8, SK_ARRAY_COUNT(data8), subset8,
188              SK_ARRAY_COUNT(subset8), expectedSubset8);
189    TestWData(reporter, data9, SK_ARRAY_COUNT(data9), NULL, 0, expected9);
190    TestWData(reporter, data9, SK_ARRAY_COUNT(data9), subset9,
191              SK_ARRAY_COUNT(subset9), expectedSubset9);
192    TestWData(reporter, data10, SK_ARRAY_COUNT(data10), NULL, 0, expected10);
193    TestWData(reporter, data10, SK_ARRAY_COUNT(data10), subset10,
194              SK_ARRAY_COUNT(subset10), expectedSubset10);
195    TestWData(reporter, data11, SK_ARRAY_COUNT(data11), NULL, 0, expected11);
196    TestWData(reporter, data11, SK_ARRAY_COUNT(data11), subset11,
197              SK_ARRAY_COUNT(subset11), expectedSubset11);
198    TestWData(reporter, data12, SK_ARRAY_COUNT(data12), NULL, 0, expected12);
199    TestWData(reporter, data12, SK_ARRAY_COUNT(data12), subset12,
200              SK_ARRAY_COUNT(subset12), expectedSubset12);
201    TestWData(reporter, data13, SK_ARRAY_COUNT(data13), NULL, 0, expected13);
202    TestWData(reporter, data13, SK_ARRAY_COUNT(data13), subset13,
203              SK_ARRAY_COUNT(subset13), expectedSubset13);
204    TestWData(reporter, data14, SK_ARRAY_COUNT(data14), NULL, 0, expected14);
205    TestWData(reporter, data14, SK_ARRAY_COUNT(data14), subset14,
206              SK_ARRAY_COUNT(subset14), expectedSubset14);
207}
208