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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/app/android/child_process_service.h"
#include <android/native_window_jni.h>
#include <cpu-features.h>
#include "base/android/jni_array.h"
#include "base/android/library_loader/library_loader_hooks.h"
#include "base/android/memory_pressure_listener_android.h"
#include "base/logging.h"
#include "base/macros.h"
#include "base/posix/global_descriptors.h"
#include "content/child/child_thread_impl.h"
#include "content/public/common/content_descriptors.h"
#include "gpu/ipc/common/android/surface_texture_manager.h"
#include "gpu/ipc/common/android/surface_texture_peer.h"
#include "gpu/ipc/common/gpu_surface_lookup.h"
#include "ipc/ipc_descriptors.h"
#include "jni/ChildProcessService_jni.h"
#include "ui/gl/android/scoped_java_surface.h"
using base::android::AttachCurrentThread;
using base::android::CheckException;
using base::android::JavaIntArrayToIntVector;
namespace content {
namespace {
// TODO(sievers): Use two different implementations of this depending on if
// we're in a renderer or gpu process.
class SurfaceTextureManagerImpl : public gpu::SurfaceTextureManager,
public gpu::SurfaceTexturePeer,
public gpu::GpuSurfaceLookup {
public:
// |service| is the instance of
// org.chromium.content.app.ChildProcessService.
explicit SurfaceTextureManagerImpl(
const base::android::JavaRef<jobject>& service)
: service_(service) {
SurfaceTexturePeer::InitInstance(this);
gpu::GpuSurfaceLookup::InitInstance(this);
}
~SurfaceTextureManagerImpl() override {
SurfaceTexturePeer::InitInstance(NULL);
gpu::GpuSurfaceLookup::InitInstance(NULL);
}
// Overridden from SurfaceTextureManager:
void RegisterSurfaceTexture(int surface_texture_id,
int client_id,
gfx::SurfaceTexture* surface_texture) override {
JNIEnv* env = base::android::AttachCurrentThread();
Java_ChildProcessService_createSurfaceTextureSurface(
env,
service_.obj(),
surface_texture_id,
client_id,
surface_texture->j_surface_texture().obj());
}
void UnregisterSurfaceTexture(int surface_texture_id,
int client_id) override {
JNIEnv* env = base::android::AttachCurrentThread();
Java_ChildProcessService_destroySurfaceTextureSurface(
env, service_.obj(), surface_texture_id, client_id);
}
gfx::AcceleratedWidget AcquireNativeWidgetForSurfaceTexture(
int surface_texture_id) override {
JNIEnv* env = base::android::AttachCurrentThread();
gfx::ScopedJavaSurface surface(
Java_ChildProcessService_getSurfaceTextureSurface(env, service_.obj(),
surface_texture_id));
if (surface.j_surface().is_null())
return NULL;
// Note: This ensures that any local references used by
// ANativeWindow_fromSurface are released immediately. This is needed as a
// workaround for https://code.google.com/p/android/issues/detail?id=68174
base::android::ScopedJavaLocalFrame scoped_local_reference_frame(env);
ANativeWindow* native_window =
ANativeWindow_fromSurface(env, surface.j_surface().obj());
return native_window;
}
// Overridden from SurfaceTexturePeer:
void EstablishSurfaceTexturePeer(
base::ProcessHandle pid,
scoped_refptr<gfx::SurfaceTexture> surface_texture,
int primary_id,
int secondary_id) override {
JNIEnv* env = base::android::AttachCurrentThread();
content::Java_ChildProcessService_establishSurfaceTexturePeer(
env,
service_.obj(),
pid,
surface_texture->j_surface_texture().obj(),
primary_id,
secondary_id);
}
// Overridden from GpuSurfaceLookup:
gfx::AcceleratedWidget AcquireNativeWidget(int surface_id) override {
JNIEnv* env = base::android::AttachCurrentThread();
gfx::ScopedJavaSurface surface(
content::Java_ChildProcessService_getViewSurface(
env, service_.obj(), surface_id));
if (surface.j_surface().is_null())
return NULL;
// Note: This ensures that any local references used by
// ANativeWindow_fromSurface are released immediately. This is needed as a
// workaround for https://code.google.com/p/android/issues/detail?id=68174
base::android::ScopedJavaLocalFrame scoped_local_reference_frame(env);
ANativeWindow* native_window =
ANativeWindow_fromSurface(env, surface.j_surface().obj());
return native_window;
}
// Overridden from GpuSurfaceLookup:
gfx::ScopedJavaSurface AcquireJavaSurface(int surface_id) override {
JNIEnv* env = base::android::AttachCurrentThread();
return gfx::ScopedJavaSurface(
content::Java_ChildProcessService_getViewSurface(env, service_.obj(),
surface_id));
}
private:
// The instance of org.chromium.content.app.ChildProcessService.
base::android::ScopedJavaGlobalRef<jobject> service_;
DISALLOW_COPY_AND_ASSIGN(SurfaceTextureManagerImpl);
};
// Chrome actually uses the renderer code path for all of its child
// processes such as renderers, plugins, etc.
void InternalInitChildProcess(JNIEnv* env,
const JavaParamRef<jobject>& service,
jint cpu_count,
jlong cpu_features) {
// Set the CPU properties.
android_setCpu(cpu_count, cpu_features);
gpu::SurfaceTextureManager::SetInstance(
new SurfaceTextureManagerImpl(service));
base::android::MemoryPressureListenerAndroid::RegisterSystemCallback(env);
}
} // namespace <anonymous>
void RegisterGlobalFileDescriptor(JNIEnv* env,
const JavaParamRef<jclass>& clazz,
jint id,
jint fd,
jlong offset,
jlong size) {
base::MemoryMappedFile::Region region = {offset, size};
base::GlobalDescriptors::GetInstance()->Set(id, fd, region);
}
void InitChildProcess(JNIEnv* env,
const JavaParamRef<jclass>& clazz,
const JavaParamRef<jobject>& service,
jint cpu_count,
jlong cpu_features) {
InternalInitChildProcess(env, service, cpu_count, cpu_features);
}
void ExitChildProcess(JNIEnv* env, const JavaParamRef<jclass>& clazz) {
VLOG(0) << "ChildProcessService: Exiting child process.";
base::android::LibraryLoaderExitHook();
_exit(0);
}
bool RegisterChildProcessService(JNIEnv* env) {
return RegisterNativesImpl(env);
}
void ShutdownMainThread(JNIEnv* env, const JavaParamRef<jobject>& obj) {
ChildThreadImpl::ShutdownThread();
}
} // namespace content
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