1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "ui/gl/android/scoped_java_surface.h" 6 7 #include "base/logging.h" 8 #include "jni/Surface_jni.h" 9 #include "ui/gl/android/surface_texture.h" 10 11 namespace { 12 13 bool g_jni_initialized = false; 14 RegisterNativesIfNeeded(JNIEnv * env)15void RegisterNativesIfNeeded(JNIEnv* env) { 16 if (!g_jni_initialized) { 17 JNI_Surface::RegisterNativesImpl(env); 18 g_jni_initialized = true; 19 } 20 } 21 22 } // anonymous namespace 23 24 namespace gfx { 25 ScopedJavaSurface()26ScopedJavaSurface::ScopedJavaSurface() { 27 } 28 ScopedJavaSurface(const base::android::JavaRef<jobject> & surface)29ScopedJavaSurface::ScopedJavaSurface( 30 const base::android::JavaRef<jobject>& surface) 31 : auto_release_(true), 32 is_protected_(false) { 33 JNIEnv* env = base::android::AttachCurrentThread(); 34 RegisterNativesIfNeeded(env); 35 DCHECK(env->IsInstanceOf(surface.obj(), g_Surface_clazz)); 36 j_surface_.Reset(surface); 37 } 38 ScopedJavaSurface(const SurfaceTexture * surface_texture)39ScopedJavaSurface::ScopedJavaSurface( 40 const SurfaceTexture* surface_texture) 41 : auto_release_(true), 42 is_protected_(false) { 43 JNIEnv* env = base::android::AttachCurrentThread(); 44 RegisterNativesIfNeeded(env); 45 ScopedJavaLocalRef<jobject> tmp(JNI_Surface::Java_Surface_Constructor( 46 env, surface_texture->j_surface_texture().obj())); 47 DCHECK(!tmp.is_null()); 48 j_surface_.Reset(tmp); 49 } 50 ScopedJavaSurface(RValue rvalue)51ScopedJavaSurface::ScopedJavaSurface(RValue rvalue) { 52 MoveFrom(*rvalue.object); 53 } 54 operator =(RValue rhs)55ScopedJavaSurface& ScopedJavaSurface::operator=(RValue rhs) { 56 MoveFrom(*rhs.object); 57 return *this; 58 } 59 ~ScopedJavaSurface()60ScopedJavaSurface::~ScopedJavaSurface() { 61 if (auto_release_ && !j_surface_.is_null()) { 62 JNIEnv* env = base::android::AttachCurrentThread(); 63 JNI_Surface::Java_Surface_release(env, j_surface_.obj()); 64 } 65 } 66 MoveFrom(ScopedJavaSurface & other)67void ScopedJavaSurface::MoveFrom(ScopedJavaSurface& other) { 68 JNIEnv* env = base::android::AttachCurrentThread(); 69 j_surface_.Reset(env, other.j_surface_.Release()); 70 auto_release_ = other.auto_release_; 71 is_protected_ = other.is_protected_; 72 } 73 IsEmpty() const74bool ScopedJavaSurface::IsEmpty() const { 75 return j_surface_.is_null(); 76 } 77 78 // static AcquireExternalSurface(jobject surface)79ScopedJavaSurface ScopedJavaSurface::AcquireExternalSurface(jobject surface) { 80 JNIEnv* env = base::android::AttachCurrentThread(); 81 ScopedJavaLocalRef<jobject> surface_ref; 82 surface_ref.Reset(env, surface); 83 gfx::ScopedJavaSurface scoped_surface(surface_ref); 84 scoped_surface.auto_release_ = false; 85 scoped_surface.is_protected_ = true; 86 return scoped_surface; 87 } 88 89 } // namespace gfx 90