skia2/gm/gm_expectations.cpp
scroggo@google.com ccd7afb6fb Reland 'Add path utils, plus a test for it.'
Build SkPathJoin and SkBasename on windows also.

Previous CL did not build on Windows because the two functions were
accidentally placed inside an ifdef that did not include windows.
Move the functions to the top of the file, and add a comment by the
endif for clarity.

Previously reviewed at https://codereview.chromium.org/15747004/

Review URL: https://codereview.chromium.org/15740024

git-svn-id: http://skia.googlecode.com/svn/trunk@9295 2bbb7eff-a529-9590-31e7-b0007b416f81
2013-05-28 16:45:07 +00:00

259 lines
10 KiB
C++

/*
* Copyright 2013 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "gm_expectations.h"
#include "SkBitmapHasher.h"
#include "SkImageDecoder.h"
#define DEBUGFAIL_SEE_STDERR SkDEBUGFAIL("see stderr for message")
// These constants must be kept in sync with the JSONKEY_ constants in
// gm_json.py !
const static char kJsonKey_ActualResults[] = "actual-results";
const static char kJsonKey_ActualResults_Failed[] = "failed";
const static char kJsonKey_ActualResults_FailureIgnored[]= "failure-ignored";
const static char kJsonKey_ActualResults_NoComparison[] = "no-comparison";
const static char kJsonKey_ActualResults_Succeeded[] = "succeeded";
const static char kJsonKey_ExpectedResults[] = "expected-results";
const static char kJsonKey_ExpectedResults_AllowedDigests[] = "allowed-digests";
const static char kJsonKey_ExpectedResults_IgnoreFailure[] = "ignore-failure";
// Types of result hashes we support in the JSON file.
const static char kJsonKey_Hashtype_Bitmap_64bitMD5[] = "bitmap-64bitMD5";
namespace skiagm {
void gm_fprintf(FILE *stream, const char format[], ...) {
va_list args;
va_start(args, format);
fprintf(stream, "GM: ");
vfprintf(stream, format, args);
va_end(args);
}
Json::Value CreateJsonTree(Json::Value expectedResults,
Json::Value actualResultsFailed,
Json::Value actualResultsFailureIgnored,
Json::Value actualResultsNoComparison,
Json::Value actualResultsSucceeded) {
Json::Value actualResults;
actualResults[kJsonKey_ActualResults_Failed] = actualResultsFailed;
actualResults[kJsonKey_ActualResults_FailureIgnored] = actualResultsFailureIgnored;
actualResults[kJsonKey_ActualResults_NoComparison] = actualResultsNoComparison;
actualResults[kJsonKey_ActualResults_Succeeded] = actualResultsSucceeded;
Json::Value root;
root[kJsonKey_ActualResults] = actualResults;
root[kJsonKey_ExpectedResults] = expectedResults;
return root;
}
// GmResultDigest class...
GmResultDigest::GmResultDigest(const SkBitmap &bitmap) {
fIsValid = SkBitmapHasher::ComputeDigest(bitmap, &fHashDigest);
}
GmResultDigest::GmResultDigest(const Json::Value &jsonTypeValuePair) {
fIsValid = false;
if (!jsonTypeValuePair.isArray()) {
gm_fprintf(stderr, "found non-array json value when parsing GmResultDigest: %s\n",
jsonTypeValuePair.toStyledString().c_str());
DEBUGFAIL_SEE_STDERR;
} else if (2 != jsonTypeValuePair.size()) {
gm_fprintf(stderr, "found json array with wrong size when parsing GmResultDigest: %s\n",
jsonTypeValuePair.toStyledString().c_str());
DEBUGFAIL_SEE_STDERR;
} else {
// TODO(epoger): The current implementation assumes that the
// result digest is always of type kJsonKey_Hashtype_Bitmap_64bitMD5
Json::Value jsonHashValue = jsonTypeValuePair[1];
if (!jsonHashValue.isIntegral()) {
gm_fprintf(stderr,
"found non-integer jsonHashValue when parsing GmResultDigest: %s\n",
jsonTypeValuePair.toStyledString().c_str());
DEBUGFAIL_SEE_STDERR;
} else {
fHashDigest = jsonHashValue.asUInt64();
fIsValid = true;
}
}
}
bool GmResultDigest::isValid() const {
return fIsValid;
}
bool GmResultDigest::equals(const GmResultDigest &other) const {
// TODO(epoger): The current implementation assumes that this
// and other are always of type kJsonKey_Hashtype_Bitmap_64bitMD5
return (this->fIsValid && other.fIsValid && (this->fHashDigest == other.fHashDigest));
}
Json::Value GmResultDigest::asJsonTypeValuePair() const {
// TODO(epoger): The current implementation assumes that the
// result digest is always of type kJsonKey_Hashtype_Bitmap_64bitMD5
Json::Value jsonTypeValuePair;
if (fIsValid) {
jsonTypeValuePair.append(Json::Value(kJsonKey_Hashtype_Bitmap_64bitMD5));
jsonTypeValuePair.append(Json::UInt64(fHashDigest));
} else {
jsonTypeValuePair.append(Json::Value("INVALID"));
}
return jsonTypeValuePair;
}
// Expectations class...
Expectations::Expectations(bool ignoreFailure) {
fIgnoreFailure = ignoreFailure;
}
Expectations::Expectations(const SkBitmap& bitmap, bool ignoreFailure) {
fBitmap = bitmap;
fIgnoreFailure = ignoreFailure;
fAllowedResultDigests.push_back(GmResultDigest(bitmap));
}
Expectations::Expectations(Json::Value jsonElement) {
if (jsonElement.empty()) {
fIgnoreFailure = kDefaultIgnoreFailure;
} else {
Json::Value ignoreFailure = jsonElement[kJsonKey_ExpectedResults_IgnoreFailure];
if (ignoreFailure.isNull()) {
fIgnoreFailure = kDefaultIgnoreFailure;
} else if (!ignoreFailure.isBool()) {
gm_fprintf(stderr, "found non-boolean json value"
" for key '%s' in element '%s'\n",
kJsonKey_ExpectedResults_IgnoreFailure,
jsonElement.toStyledString().c_str());
DEBUGFAIL_SEE_STDERR;
fIgnoreFailure = kDefaultIgnoreFailure;
} else {
fIgnoreFailure = ignoreFailure.asBool();
}
Json::Value allowedDigests = jsonElement[kJsonKey_ExpectedResults_AllowedDigests];
if (allowedDigests.isNull()) {
// ok, we'll just assume there aren't any AllowedDigests to compare against
} else if (!allowedDigests.isArray()) {
gm_fprintf(stderr, "found non-array json value"
" for key '%s' in element '%s'\n",
kJsonKey_ExpectedResults_AllowedDigests,
jsonElement.toStyledString().c_str());
DEBUGFAIL_SEE_STDERR;
} else {
for (Json::ArrayIndex i=0; i<allowedDigests.size(); i++) {
fAllowedResultDigests.push_back(GmResultDigest(allowedDigests[i]));
}
}
}
}
bool Expectations::match(GmResultDigest actualGmResultDigest) const {
for (int i=0; i < this->fAllowedResultDigests.count(); i++) {
GmResultDigest allowedResultDigest = this->fAllowedResultDigests[i];
if (allowedResultDigest.equals(actualGmResultDigest)) {
return true;
}
}
return false;
}
Json::Value Expectations::asJsonValue() const {
Json::Value allowedDigestArray;
if (!this->fAllowedResultDigests.empty()) {
for (int i=0; i < this->fAllowedResultDigests.count(); i++) {
allowedDigestArray.append(this->fAllowedResultDigests[i].asJsonTypeValuePair());
}
}
Json::Value jsonExpectations;
jsonExpectations[kJsonKey_ExpectedResults_AllowedDigests] = allowedDigestArray;
jsonExpectations[kJsonKey_ExpectedResults_IgnoreFailure] = this->ignoreFailure();
return jsonExpectations;
}
// IndividualImageExpectationsSource class...
Expectations IndividualImageExpectationsSource::get(const char *testName) {
SkString path = SkOSPath::SkPathJoin(fRootDir.c_str(), testName);
SkBitmap referenceBitmap;
bool decodedReferenceBitmap =
SkImageDecoder::DecodeFile(path.c_str(), &referenceBitmap,
SkBitmap::kARGB_8888_Config,
SkImageDecoder::kDecodePixels_Mode,
NULL);
if (decodedReferenceBitmap) {
return Expectations(referenceBitmap);
} else {
return Expectations();
}
}
// JsonExpectationsSource class...
JsonExpectationsSource::JsonExpectationsSource(const char *jsonPath) {
Parse(jsonPath, &fJsonRoot);
fJsonExpectedResults = fJsonRoot[kJsonKey_ExpectedResults];
}
Expectations JsonExpectationsSource::get(const char *testName) {
return Expectations(fJsonExpectedResults[testName]);
}
/*static*/ SkData* JsonExpectationsSource::ReadIntoSkData(SkStream &stream, size_t maxBytes) {
if (0 == maxBytes) {
return SkData::NewEmpty();
}
char* bufStart = reinterpret_cast<char *>(sk_malloc_throw(maxBytes));
char* bufPtr = bufStart;
size_t bytesRemaining = maxBytes;
while (bytesRemaining > 0) {
size_t bytesReadThisTime = stream.read(bufPtr, bytesRemaining);
if (0 == bytesReadThisTime) {
break;
}
bytesRemaining -= bytesReadThisTime;
bufPtr += bytesReadThisTime;
}
return SkData::NewFromMalloc(bufStart, maxBytes - bytesRemaining);
}
/*static*/ bool JsonExpectationsSource::Parse(const char *jsonPath, Json::Value *jsonRoot) {
SkFILEStream inFile(jsonPath);
if (!inFile.isValid()) {
gm_fprintf(stderr, "unable to read JSON file %s\n", jsonPath);
DEBUGFAIL_SEE_STDERR;
return false;
}
SkAutoDataUnref dataRef(ReadFileIntoSkData(inFile));
if (NULL == dataRef.get()) {
gm_fprintf(stderr, "error reading JSON file %s\n", jsonPath);
DEBUGFAIL_SEE_STDERR;
return false;
}
const char *bytes = reinterpret_cast<const char *>(dataRef.get()->data());
size_t size = dataRef.get()->size();
Json::Reader reader;
if (!reader.parse(bytes, bytes+size, *jsonRoot)) {
gm_fprintf(stderr, "error parsing JSON file %s\n", jsonPath);
DEBUGFAIL_SEE_STDERR;
return false;
}
return true;
}
}