epoger@google.com | 3726960 | 2013-01-19 04:21:27 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2013 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 | #ifndef gm_expectations_DEFINED |
| 8 | #define gm_expectations_DEFINED |
| 9 | |
| 10 | #include "gm.h" |
epoger@google.com | 84a1802 | 2013-02-01 20:39:15 +0000 | [diff] [blame] | 11 | #include "SkBitmap.h" |
epoger@google.com | 908f583 | 2013-04-12 02:23:55 +0000 | [diff] [blame] | 12 | #include "SkBitmapHasher.h" |
epoger@google.com | d271d24 | 2013-02-13 18:14:48 +0000 | [diff] [blame] | 13 | #include "SkData.h" |
epoger@google.com | 3726960 | 2013-01-19 04:21:27 +0000 | [diff] [blame] | 14 | #include "SkOSFile.h" |
| 15 | #include "SkRefCnt.h" |
epoger@google.com | d271d24 | 2013-02-13 18:14:48 +0000 | [diff] [blame] | 16 | #include "SkStream.h" |
epoger@google.com | 3726960 | 2013-01-19 04:21:27 +0000 | [diff] [blame] | 17 | #include "SkTArray.h" |
| 18 | |
| 19 | #ifdef SK_BUILD_FOR_WIN |
| 20 | // json includes xlocale which generates warning 4530 because we're compiling without |
| 21 | // exceptions; see https://code.google.com/p/skia/issues/detail?id=1067 |
| 22 | #pragma warning(push) |
| 23 | #pragma warning(disable : 4530) |
| 24 | #endif |
epoger@google.com | d271d24 | 2013-02-13 18:14:48 +0000 | [diff] [blame] | 25 | #include "json/reader.h" |
epoger@google.com | 3726960 | 2013-01-19 04:21:27 +0000 | [diff] [blame] | 26 | #include "json/value.h" |
| 27 | #ifdef SK_BUILD_FOR_WIN |
| 28 | #pragma warning(pop) |
| 29 | #endif |
| 30 | |
| 31 | namespace skiagm { |
| 32 | |
scroggo@google.com | 6843bdb | 2013-05-08 19:14:23 +0000 | [diff] [blame] | 33 | void gm_fprintf(FILE *stream, const char format[], ...); |
epoger@google.com | 5efdd0c | 2013-03-13 14:18:40 +0000 | [diff] [blame] | 34 | |
epoger@google.com | 76c913d | 2013-04-26 15:06:44 +0000 | [diff] [blame] | 35 | Json::Value CreateJsonTree(Json::Value expectedResults, |
| 36 | Json::Value actualResultsFailed, |
| 37 | Json::Value actualResultsFailureIgnored, |
| 38 | Json::Value actualResultsNoComparison, |
| 39 | Json::Value actualResultsSucceeded); |
| 40 | |
epoger@google.com | 3726960 | 2013-01-19 04:21:27 +0000 | [diff] [blame] | 41 | /** |
epoger@google.com | d4993ff | 2013-05-24 14:33:28 +0000 | [diff] [blame] | 42 | * The digest of a GM test result. |
| 43 | * |
| 44 | * Currently, this is always a uint64_t hash digest of an SkBitmap... |
| 45 | * but we will add other flavors soon. |
| 46 | */ |
| 47 | class GmResultDigest { |
| 48 | public: |
| 49 | /** |
| 50 | * Create a ResultDigest representing an actual image result. |
| 51 | */ |
| 52 | GmResultDigest(const SkBitmap &bitmap); |
| 53 | |
| 54 | /** |
| 55 | * Create a ResultDigest representing an allowed result |
| 56 | * checksum within JSON expectations file, in the form |
| 57 | * ["bitmap-64bitMD5", 12345]. |
| 58 | */ |
| 59 | GmResultDigest(const Json::Value &jsonTypeValuePair); |
| 60 | |
| 61 | /** |
| 62 | * Returns true if this GmResultDigest was fully and successfully |
| 63 | * created. |
| 64 | */ |
| 65 | bool isValid() const; |
| 66 | |
| 67 | /** |
| 68 | * Returns true if this and other GmResultDigest could |
| 69 | * represent identical results. |
| 70 | */ |
| 71 | bool equals(const GmResultDigest &other) const; |
| 72 | |
| 73 | /** |
| 74 | * Returns a JSON type/value pair representing this result, |
| 75 | * such as ["bitmap-64bitMD5", 12345]. |
| 76 | */ |
| 77 | Json::Value asJsonTypeValuePair() const; |
| 78 | |
| 79 | private: |
| 80 | bool fIsValid; // always check this first--if it's false, other fields are meaningless |
| 81 | uint64_t fHashDigest; |
| 82 | }; |
| 83 | |
| 84 | /** |
| 85 | * Test expectations (allowed image results, etc.) |
epoger@google.com | 3726960 | 2013-01-19 04:21:27 +0000 | [diff] [blame] | 86 | */ |
| 87 | class Expectations { |
| 88 | public: |
| 89 | /** |
| 90 | * No expectations at all. |
epoger@google.com | 3726960 | 2013-01-19 04:21:27 +0000 | [diff] [blame] | 91 | */ |
epoger@google.com | 76c913d | 2013-04-26 15:06:44 +0000 | [diff] [blame] | 92 | Expectations(bool ignoreFailure=kDefaultIgnoreFailure); |
epoger@google.com | 3726960 | 2013-01-19 04:21:27 +0000 | [diff] [blame] | 93 | |
| 94 | /** |
epoger@google.com | 84a1802 | 2013-02-01 20:39:15 +0000 | [diff] [blame] | 95 | * Expect exactly one image (appropriate for the case when we |
epoger@google.com | 3726960 | 2013-01-19 04:21:27 +0000 | [diff] [blame] | 96 | * are comparing against a single PNG file). |
epoger@google.com | 3726960 | 2013-01-19 04:21:27 +0000 | [diff] [blame] | 97 | */ |
epoger@google.com | 76c913d | 2013-04-26 15:06:44 +0000 | [diff] [blame] | 98 | Expectations(const SkBitmap& bitmap, bool ignoreFailure=kDefaultIgnoreFailure); |
epoger@google.com | 3726960 | 2013-01-19 04:21:27 +0000 | [diff] [blame] | 99 | |
| 100 | /** |
epoger@google.com | d271d24 | 2013-02-13 18:14:48 +0000 | [diff] [blame] | 101 | * Create Expectations from a JSON element as found within the |
| 102 | * kJsonKey_ExpectedResults section. |
| 103 | * |
| 104 | * It's fine if the jsonElement is null or empty; in that case, we just |
| 105 | * don't have any expectations. |
| 106 | */ |
epoger@google.com | 76c913d | 2013-04-26 15:06:44 +0000 | [diff] [blame] | 107 | Expectations(Json::Value jsonElement); |
epoger@google.com | d271d24 | 2013-02-13 18:14:48 +0000 | [diff] [blame] | 108 | |
| 109 | /** |
epoger@google.com | 3726960 | 2013-01-19 04:21:27 +0000 | [diff] [blame] | 110 | * Returns true iff we want to ignore failed expectations. |
| 111 | */ |
| 112 | bool ignoreFailure() const { return this->fIgnoreFailure; } |
| 113 | |
| 114 | /** |
epoger@google.com | d4993ff | 2013-05-24 14:33:28 +0000 | [diff] [blame] | 115 | * Returns true iff there are no allowed results. |
epoger@google.com | 3726960 | 2013-01-19 04:21:27 +0000 | [diff] [blame] | 116 | */ |
epoger@google.com | d4993ff | 2013-05-24 14:33:28 +0000 | [diff] [blame] | 117 | bool empty() const { return this->fAllowedResultDigests.empty(); } |
epoger@google.com | 3726960 | 2013-01-19 04:21:27 +0000 | [diff] [blame] | 118 | |
| 119 | /** |
epoger@google.com | d4993ff | 2013-05-24 14:33:28 +0000 | [diff] [blame] | 120 | * Returns true iff resultDigest matches any allowed result, |
epoger@google.com | 3726960 | 2013-01-19 04:21:27 +0000 | [diff] [blame] | 121 | * regardless of fIgnoreFailure. (The caller can check |
| 122 | * that separately.) |
| 123 | */ |
epoger@google.com | d4993ff | 2013-05-24 14:33:28 +0000 | [diff] [blame] | 124 | bool match(GmResultDigest resultDigest) const; |
epoger@google.com | 3726960 | 2013-01-19 04:21:27 +0000 | [diff] [blame] | 125 | |
| 126 | /** |
epoger@google.com | 84a1802 | 2013-02-01 20:39:15 +0000 | [diff] [blame] | 127 | * If this Expectation is based on a single SkBitmap, return a |
| 128 | * pointer to that SkBitmap. Otherwise (if the Expectation is |
| 129 | * empty, or if it was based on a list of checksums rather |
| 130 | * than a single bitmap), returns NULL. |
| 131 | */ |
| 132 | const SkBitmap *asBitmap() const { |
| 133 | return (SkBitmap::kNo_Config == fBitmap.config()) ? NULL : &fBitmap; |
| 134 | } |
| 135 | |
| 136 | /** |
epoger@google.com | 76c913d | 2013-04-26 15:06:44 +0000 | [diff] [blame] | 137 | * Return a JSON representation of the expectations. |
epoger@google.com | 3726960 | 2013-01-19 04:21:27 +0000 | [diff] [blame] | 138 | */ |
epoger@google.com | 76c913d | 2013-04-26 15:06:44 +0000 | [diff] [blame] | 139 | Json::Value asJsonValue() const; |
epoger@google.com | 3726960 | 2013-01-19 04:21:27 +0000 | [diff] [blame] | 140 | |
| 141 | private: |
epoger@google.com | d271d24 | 2013-02-13 18:14:48 +0000 | [diff] [blame] | 142 | const static bool kDefaultIgnoreFailure = false; |
| 143 | |
epoger@google.com | d4993ff | 2013-05-24 14:33:28 +0000 | [diff] [blame] | 144 | SkTArray<GmResultDigest> fAllowedResultDigests; |
epoger@google.com | 3726960 | 2013-01-19 04:21:27 +0000 | [diff] [blame] | 145 | bool fIgnoreFailure; |
epoger@google.com | 84a1802 | 2013-02-01 20:39:15 +0000 | [diff] [blame] | 146 | SkBitmap fBitmap; |
epoger@google.com | 3726960 | 2013-01-19 04:21:27 +0000 | [diff] [blame] | 147 | }; |
| 148 | |
| 149 | /** |
| 150 | * Abstract source of Expectations objects for individual tests. |
| 151 | */ |
| 152 | class ExpectationsSource : public SkRefCnt { |
| 153 | public: |
| 154 | virtual Expectations get(const char *testName) = 0; |
| 155 | }; |
| 156 | |
| 157 | /** |
| 158 | * Return Expectations based on individual image files on disk. |
| 159 | */ |
| 160 | class IndividualImageExpectationsSource : public ExpectationsSource { |
| 161 | public: |
| 162 | /** |
| 163 | * Create an ExpectationsSource that will return Expectations based on |
| 164 | * image files found within rootDir. |
| 165 | * |
| 166 | * rootDir: directory under which to look for image files |
| 167 | * (this string will be copied to storage within this object) |
epoger@google.com | 3726960 | 2013-01-19 04:21:27 +0000 | [diff] [blame] | 168 | */ |
epoger@google.com | b0f8b43 | 2013-04-10 18:46:25 +0000 | [diff] [blame] | 169 | IndividualImageExpectationsSource(const char *rootDir) : fRootDir(rootDir) {} |
epoger@google.com | 3726960 | 2013-01-19 04:21:27 +0000 | [diff] [blame] | 170 | |
epoger@google.com | 76c913d | 2013-04-26 15:06:44 +0000 | [diff] [blame] | 171 | Expectations get(const char *testName) SK_OVERRIDE ; |
epoger@google.com | 3726960 | 2013-01-19 04:21:27 +0000 | [diff] [blame] | 172 | |
| 173 | private: |
| 174 | const SkString fRootDir; |
epoger@google.com | 3726960 | 2013-01-19 04:21:27 +0000 | [diff] [blame] | 175 | }; |
| 176 | |
epoger@google.com | d271d24 | 2013-02-13 18:14:48 +0000 | [diff] [blame] | 177 | /** |
| 178 | * Return Expectations based on JSON summary file. |
| 179 | */ |
| 180 | class JsonExpectationsSource : public ExpectationsSource { |
| 181 | public: |
| 182 | /** |
| 183 | * Create an ExpectationsSource that will return Expectations based on |
| 184 | * a JSON file. |
| 185 | * |
| 186 | * jsonPath: path to JSON file to read |
| 187 | */ |
epoger@google.com | 76c913d | 2013-04-26 15:06:44 +0000 | [diff] [blame] | 188 | JsonExpectationsSource(const char *jsonPath); |
epoger@google.com | d271d24 | 2013-02-13 18:14:48 +0000 | [diff] [blame] | 189 | |
epoger@google.com | 76c913d | 2013-04-26 15:06:44 +0000 | [diff] [blame] | 190 | Expectations get(const char *testName) SK_OVERRIDE; |
epoger@google.com | d271d24 | 2013-02-13 18:14:48 +0000 | [diff] [blame] | 191 | |
| 192 | private: |
| 193 | |
| 194 | /** |
| 195 | * Read as many bytes as possible (up to maxBytes) from the stream into |
| 196 | * an SkData object. |
| 197 | * |
| 198 | * If the returned SkData contains fewer than maxBytes, then EOF has been |
| 199 | * reached and no more data would be available from subsequent calls. |
| 200 | * (If EOF has already been reached, then this call will return an empty |
| 201 | * SkData object immediately.) |
| 202 | * |
| 203 | * If there are fewer than maxBytes bytes available to read from the |
| 204 | * stream, but the stream has not been closed yet, this call will block |
| 205 | * until there are enough bytes to read or the stream has been closed. |
| 206 | * |
| 207 | * It is up to the caller to call unref() on the returned SkData object |
| 208 | * once the data is no longer needed, so that the underlying buffer will |
| 209 | * be freed. For example: |
| 210 | * |
| 211 | * { |
| 212 | * size_t maxBytes = 256; |
| 213 | * SkAutoDataUnref dataRef(readIntoSkData(stream, maxBytes)); |
| 214 | * if (NULL != dataRef.get()) { |
| 215 | * size_t bytesActuallyRead = dataRef.get()->size(); |
| 216 | * // use the data... |
| 217 | * } |
| 218 | * } |
| 219 | * // underlying buffer has been freed, thanks to auto unref |
| 220 | * |
| 221 | */ |
| 222 | // TODO(epoger): Move this, into SkStream.[cpp|h] as attempted in |
| 223 | // https://codereview.appspot.com/7300071 ? |
scroggo@google.com | 6843bdb | 2013-05-08 19:14:23 +0000 | [diff] [blame] | 224 | // And maybe ReadFileIntoSkData() also? |
| 225 | static SkData* ReadIntoSkData(SkStream &stream, size_t maxBytes); |
epoger@google.com | d271d24 | 2013-02-13 18:14:48 +0000 | [diff] [blame] | 226 | |
| 227 | /** |
scroggo@google.com | 6843bdb | 2013-05-08 19:14:23 +0000 | [diff] [blame] | 228 | * Wrapper around ReadIntoSkData for files: reads the entire file into |
epoger@google.com | d271d24 | 2013-02-13 18:14:48 +0000 | [diff] [blame] | 229 | * an SkData object. |
| 230 | */ |
scroggo@google.com | 6843bdb | 2013-05-08 19:14:23 +0000 | [diff] [blame] | 231 | static SkData* ReadFileIntoSkData(SkFILEStream &stream) { |
| 232 | return ReadIntoSkData(stream, stream.getLength()); |
epoger@google.com | d271d24 | 2013-02-13 18:14:48 +0000 | [diff] [blame] | 233 | } |
| 234 | |
| 235 | /** |
| 236 | * Read the file contents from jsonPath and parse them into jsonRoot. |
| 237 | * |
| 238 | * Returns true if successful. |
| 239 | */ |
scroggo@google.com | 6843bdb | 2013-05-08 19:14:23 +0000 | [diff] [blame] | 240 | static bool Parse(const char *jsonPath, Json::Value *jsonRoot); |
epoger@google.com | d271d24 | 2013-02-13 18:14:48 +0000 | [diff] [blame] | 241 | |
| 242 | Json::Value fJsonRoot; |
| 243 | Json::Value fJsonExpectedResults; |
| 244 | }; |
| 245 | |
epoger@google.com | 3726960 | 2013-01-19 04:21:27 +0000 | [diff] [blame] | 246 | } |
| 247 | #endif |