Home | History | Annotate | Download | only in tests
      1 /*
      2  * Copyright 2015 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 #ifndef RecordTestUtils_DEFINED
      9 #define RecordTestUtils_DEFINED
     10 
     11 #include "SkRecord.h"
     12 #include "SkRecords.h"
     13 #include "Test.h"
     14 
     15 // If the command we're reading is a U, set ptr to it, otherwise set it to nullptr.
     16 template <typename U>
     17 struct ReadAs {
     18     ReadAs() : ptr(nullptr), type(SkRecords::Type(~0)) {}
     19 
     20     const U* ptr;
     21     SkRecords::Type type;
     22 
     23     void operator()(const U& r) { ptr = &r; type = U::kType; }
     24 
     25     template <typename T>
     26     void operator()(const T&) { type = U::kType; }
     27 };
     28 
     29 // Assert that the ith command in record is of type T, and return it.
     30 template <typename T>
     31 static const T* assert_type(skiatest::Reporter* r, const SkRecord& record, int index) {
     32     ReadAs<T> reader;
     33     record.visit(index, reader);
     34     REPORTER_ASSERT(r, T::kType == reader.type);
     35     REPORTER_ASSERT(r, SkToBool(reader.ptr));
     36     return reader.ptr;
     37 }
     38 
     39 template <typename DrawT> struct MatchType {
     40     template <typename T> int operator()(const T&) { return 0; }
     41     int operator()(const DrawT&) { return 1; }
     42 };
     43 
     44 template <typename DrawT> int count_instances_of_type(const SkRecord& record) {
     45     MatchType<DrawT> matcher;
     46     int counter = 0;
     47     for (int i = 0; i < record.count(); i++) {
     48         counter += record.visit(i, matcher);
     49     }
     50     return counter;
     51 }
     52 
     53 template <typename DrawT> int find_first_instances_of_type(const SkRecord& record) {
     54     MatchType<DrawT> matcher;
     55     for (int i = 0; i < record.count(); i++) {
     56         if (record.visit(i, matcher)) {
     57             return i;
     58         }
     59     }
     60     return -1;
     61 }
     62 
     63 #endif//RecordTestUtils_DEFINED
     64