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/*
* Copyright 2017 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include <mutex>
#include <vector>
#include <android/asset_manager.h>
#include <android/asset_manager_jni.h>
#include <jni.h>
#include <sys/stat.h>
#include "ResourceFactory.h"
#include "SkOSPath.h"
#include "SkStream.h"
#include "SkTo.h"
#include "gm_knowledge.h"
#include "gm_runner.h"
#include "skqp_asset_manager.h"
////////////////////////////////////////////////////////////////////////////////
extern "C" {
JNIEXPORT void JNICALL Java_org_skia_skqp_SkQP_nInit(JNIEnv*, jobject, jobject, jstring, jboolean);
JNIEXPORT jfloat JNICALL Java_org_skia_skqp_SkQP_nExecuteGM(JNIEnv*, jobject, jint, jint);
JNIEXPORT jobjectArray JNICALL Java_org_skia_skqp_SkQP_nExecuteUnitTest(JNIEnv*, jobject,
jint);
JNIEXPORT void JNICALL Java_org_skia_skqp_SkQP_nMakeReport(JNIEnv*, jobject);
} // extern "C"
////////////////////////////////////////////////////////////////////////////////
namespace {
struct AndroidAssetManager : public skqp::AssetManager {
AAssetManager* fMgr = nullptr;
std::unique_ptr<SkStreamAsset> open(const char* path) override {
struct AAStrm : public SkStreamAsset {
AAssetManager* fMgr;
std::string fPath;
AAsset* fAsset;
AAStrm(AAssetManager* m, std::string p, AAsset* a)
: fMgr(m), fPath(std::move(p)), fAsset(a) {}
~AAStrm() override { AAsset_close(fAsset); }
size_t read(void* buffer, size_t size) override {
size_t r = SkTMin(size, SkToSizeT(AAsset_getRemainingLength(fAsset)));
if (buffer) {
return SkToSizeT(AAsset_read(fAsset, buffer, r));
} else {
this->move(SkTo<long>(r));
return r;
}
}
size_t getLength() const override { return SkToSizeT(AAsset_getLength(fAsset)); }
size_t peek(void* buffer, size_t size) const override {
size_t r = const_cast<AAStrm*>(this)->read(buffer, size);
const_cast<AAStrm*>(this)->move(-(long)r);
return r;
}
bool isAtEnd() const override { return 0 == AAsset_getRemainingLength(fAsset); }
bool rewind() override { return this->seek(0); }
size_t getPosition() const override {
return SkToSizeT(AAsset_seek(fAsset, 0, SEEK_CUR));
}
bool seek(size_t position) override {
return -1 != AAsset_seek(fAsset, SkTo<off_t>(position), SEEK_SET);
}
bool move(long offset) override {
return -1 != AAsset_seek(fAsset, SkTo<off_t>(offset), SEEK_CUR);
}
SkStreamAsset* onDuplicate() const override {
AAsset* dupAsset = AndroidAssetManager::OpenAsset(fMgr, fPath.c_str());
return dupAsset ? new AAStrm(fMgr, fPath, dupAsset) : nullptr;
}
SkStreamAsset* onFork() const override {
SkStreamAsset* dup = this->onDuplicate();
if (dup) { (void)dup->seek(this->getPosition()); }
return dup;
}
};
// SkDebugf("AndroidAssetManager::open(\"%s\");", path);
AAsset* asset = AndroidAssetManager::OpenAsset(fMgr, path);
return asset ? std::unique_ptr<SkStreamAsset>(new AAStrm(fMgr, std::string(path), asset))
: nullptr;
}
static AAsset* OpenAsset(AAssetManager* mgr, const char* path) {
return mgr ? AAssetManager_open(mgr, path, AASSET_MODE_STREAMING) : nullptr;
}
};
}
static void set_string_array_element(JNIEnv* env, jobjectArray a, const char* s, unsigned i) {
jstring jstr = env->NewStringUTF(s);
env->SetObjectArrayElement(a, (jsize)i, jstr);
env->DeleteLocalRef(jstr);
}
#define jassert(env, cond) do { if (!(cond)) { \
(env)->ThrowNew((env)->FindClass("java/lang/Exception"), \
__FILE__ ": assert(" #cond ") failed."); } } while (0)
////////////////////////////////////////////////////////////////////////////////
static std::mutex gMutex;
static std::vector<gm_runner::SkiaBackend> gBackends;
static std::vector<gm_runner::GMFactory> gGMs;
static std::vector<gm_runner::UnitTest> gUnitTests;
static AndroidAssetManager gAssetManager;
static std::string gReportDirectory;
static jclass gStringClass = nullptr;
////////////////////////////////////////////////////////////////////////////////
sk_sp<SkData> get_resource(const char* resource) {
AAssetManager* mgr = gAssetManager.fMgr;
if (!mgr) {
return nullptr;
}
SkString path = SkOSPath::Join("resources", resource);
AAsset* asset = AAssetManager_open(mgr, path.c_str(), AASSET_MODE_STREAMING);
if (!asset) {
return nullptr;
}
size_t size = SkToSizeT(AAsset_getLength(asset));
sk_sp<SkData> data = SkData::MakeUninitialized(size);
(void)AAsset_read(asset, data->writable_data(), size);
AAsset_close(asset);
return data;
}
////////////////////////////////////////////////////////////////////////////////
template <typename T, typename F>
jobjectArray to_java_string_array(JNIEnv* env,
const std::vector<T>& array,
F toString) {
jobjectArray jarray = env->NewObjectArray((jint)array.size(), gStringClass, nullptr);
for (unsigned i = 0; i < array.size(); ++i) {
set_string_array_element(env, jarray, std::string(toString(array[i])).c_str(), i);
}
return jarray;
}
void Java_org_skia_skqp_SkQP_nInit(JNIEnv* env, jobject object, jobject assetManager,
jstring dataDir, jboolean experimentalMode) {
jclass clazz = env->GetObjectClass(object);
jassert(env, assetManager);
std::lock_guard<std::mutex> lock(gMutex);
gAssetManager.fMgr = AAssetManager_fromJava(env, assetManager);
jassert(env, gAssetManager.fMgr);
gm_runner::InitSkia(experimentalMode ? gm_runner::Mode::kExperimentalMode
: gm_runner::Mode::kCompatibilityTestMode,
&gAssetManager);
gResourceFactory = &get_resource;
const char* dataDirString = env->GetStringUTFChars(dataDir, nullptr);
jassert(env, dataDirString && dataDirString[0]);
gReportDirectory = std::string(dataDirString) + "/skqp_report";
int mkdirRetval = mkdir(gReportDirectory.c_str(), 0777);
SkASSERT_RELEASE(0 == mkdirRetval);
env->ReleaseStringUTFChars(dataDir, dataDirString);
gBackends = gm_runner::GetSupportedBackends();
jassert(env, gBackends.size() > 0);
gGMs = gm_runner::GetGMFactories(&gAssetManager);
jassert(env, gGMs.size() > 0);
gUnitTests = gm_runner::GetUnitTests();
jassert(env, gUnitTests.size() > 0);
gStringClass = env->FindClass("java/lang/String");
jassert(env, gStringClass);
constexpr char stringArrayType[] = "[Ljava/lang/String;";
env->SetObjectField(object, env->GetFieldID(clazz, "mBackends", stringArrayType),
to_java_string_array(env, gBackends, gm_runner::GetBackendName));
env->SetObjectField(object, env->GetFieldID(clazz, "mUnitTests", stringArrayType),
to_java_string_array(env, gUnitTests, gm_runner::GetUnitTestName));
env->SetObjectField(object, env->GetFieldID(clazz, "mGMs", stringArrayType),
to_java_string_array(env, gGMs, gm_runner::GetGMName));
}
jfloat Java_org_skia_skqp_SkQP_nExecuteGM(JNIEnv* env,
jobject object,
jint gmIndex,
jint backendIndex) {
jassert(env, gmIndex < (jint)gGMs.size());
jassert(env, backendIndex < (jint)gBackends.size());
gm_runner::GMFactory gm;
gm_runner::SkiaBackend backend;
std::string reportDirectoryPath;
{
std::lock_guard<std::mutex> lock(gMutex);
backend = gBackends[backendIndex];
gm = gGMs[gmIndex];
reportDirectoryPath = gReportDirectory;
}
float result;
gm_runner::Error error;
std::tie(result, error) = gm_runner::EvaluateGM(backend, gm, &gAssetManager,
reportDirectoryPath.c_str());
if (error != gm_runner::Error::None) {
(void)env->ThrowNew(env->FindClass("org/skia/skqp/SkQPException"),
gm_runner::GetErrorString(error));
}
return result;
}
jobjectArray Java_org_skia_skqp_SkQP_nExecuteUnitTest(JNIEnv* env,
jobject object,
jint index) {
jassert(env, index < (jint)gUnitTests.size());
gm_runner::UnitTest test;
{
std::lock_guard<std::mutex> lock(gMutex);
test = gUnitTests[index];
}
std::vector<std::string> errors = gm_runner::ExecuteTest(test);
if (errors.size() == 0) {
return nullptr;
}
jclass stringClass = env->FindClass("java/lang/String");
jassert(env, stringClass);
jobjectArray array = env->NewObjectArray(errors.size(), stringClass, nullptr);
for (unsigned i = 0; i < errors.size(); ++i) {
set_string_array_element(env, array, errors[i].c_str(), i);
}
return (jobjectArray)env->NewGlobalRef(array);
}
void Java_org_skia_skqp_SkQP_nMakeReport(JNIEnv*, jobject) {
std::string reportDirectoryPath;
{
std::lock_guard<std::mutex> lock(gMutex);
reportDirectoryPath = gReportDirectory;
}
(void)gmkb::MakeReport(reportDirectoryPath.c_str());
}
////////////////////////////////////////////////////////////////////////////////
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