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/surface_texture_bridge.h" 6 7 #include <android/native_window_jni.h> 8 9 // TODO(boliu): Remove this include when we move off ICS. 10 #include "base/android/build_info.h" 11 #include "base/android/jni_android.h" 12 #include "base/logging.h" 13 #include "jni/SurfaceTextureBridge_jni.h" 14 #include "ui/gl/android/scoped_java_surface.h" 15 #include "ui/gl/android/surface_texture_listener.h" 16 #include "ui/gl/gl_bindings.h" 17 18 // TODO(boliu): Remove this method when when we move off ICS. See 19 // http://crbug.com/161864. 20 bool GlContextMethodsAvailable() { 21 bool available = base::android::BuildInfo::GetInstance()->sdk_int() >= 16; 22 if (!available) 23 LOG(WARNING) << "Running on unsupported device: rendering may not work"; 24 return available; 25 } 26 27 namespace gfx { 28 29 SurfaceTextureBridge::SurfaceTextureBridge(int texture_id) { 30 JNIEnv* env = base::android::AttachCurrentThread(); 31 j_surface_texture_.Reset(Java_SurfaceTextureBridge_create(env, texture_id)); 32 } 33 34 SurfaceTextureBridge::~SurfaceTextureBridge() { 35 JNIEnv* env = base::android::AttachCurrentThread(); 36 Java_SurfaceTextureBridge_destroy(env, j_surface_texture_.obj()); 37 } 38 39 void SurfaceTextureBridge::SetFrameAvailableCallback( 40 const base::Closure& callback) { 41 JNIEnv* env = base::android::AttachCurrentThread(); 42 Java_SurfaceTextureBridge_setFrameAvailableCallback( 43 env, 44 j_surface_texture_.obj(), 45 reinterpret_cast<int>(new SurfaceTextureListener(callback))); 46 } 47 48 void SurfaceTextureBridge::UpdateTexImage() { 49 JNIEnv* env = base::android::AttachCurrentThread(); 50 Java_SurfaceTextureBridge_updateTexImage(env, j_surface_texture_.obj()); 51 } 52 53 void SurfaceTextureBridge::GetTransformMatrix(float mtx[16]) { 54 JNIEnv* env = base::android::AttachCurrentThread(); 55 56 base::android::ScopedJavaLocalRef<jfloatArray> jmatrix( 57 env, env->NewFloatArray(16)); 58 Java_SurfaceTextureBridge_getTransformMatrix( 59 env, j_surface_texture_.obj(), jmatrix.obj()); 60 61 jboolean is_copy; 62 jfloat* elements = env->GetFloatArrayElements(jmatrix.obj(), &is_copy); 63 for (int i = 0; i < 16; ++i) { 64 mtx[i] = static_cast<float>(elements[i]); 65 } 66 env->ReleaseFloatArrayElements(jmatrix.obj(), elements, JNI_ABORT); 67 } 68 69 void SurfaceTextureBridge::SetDefaultBufferSize(int width, int height) { 70 JNIEnv* env = base::android::AttachCurrentThread(); 71 72 if (width > 0 && height > 0) { 73 Java_SurfaceTextureBridge_setDefaultBufferSize( 74 env, j_surface_texture_.obj(), static_cast<jint>(width), 75 static_cast<jint>(height)); 76 } else { 77 LOG(WARNING) << "Not setting surface texture buffer size - " 78 "width or height is 0"; 79 } 80 } 81 82 void SurfaceTextureBridge::AttachToGLContext() { 83 if (GlContextMethodsAvailable()) { 84 int texture_id; 85 glGetIntegerv(GL_TEXTURE_BINDING_EXTERNAL_OES, &texture_id); 86 DCHECK(texture_id); 87 JNIEnv* env = base::android::AttachCurrentThread(); 88 Java_SurfaceTextureBridge_attachToGLContext( 89 env, j_surface_texture_.obj(), texture_id); 90 } 91 } 92 93 void SurfaceTextureBridge::DetachFromGLContext() { 94 if (GlContextMethodsAvailable()) { 95 JNIEnv* env = base::android::AttachCurrentThread(); 96 Java_SurfaceTextureBridge_detachFromGLContext( 97 env, j_surface_texture_.obj()); 98 } 99 } 100 101 ANativeWindow* SurfaceTextureBridge::CreateSurface() { 102 JNIEnv* env = base::android::AttachCurrentThread(); 103 ScopedJavaSurface surface(this); 104 ANativeWindow* native_window = ANativeWindow_fromSurface( 105 env, surface.j_surface().obj()); 106 return native_window; 107 } 108 109 // static 110 bool SurfaceTextureBridge::RegisterSurfaceTextureBridge(JNIEnv* env) { 111 return RegisterNativesImpl(env); 112 } 113 114 } // namespace gfx 115