content/browser/android/browser_surface_texture_manager.cc

   1 // Copyright 2014 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 "content/browser/android/browser_surface_texture_manager.h"
   6
   7 #include <android/native_window_jni.h>
   8
   9 #include "base/android/jni_android.h"
  10 #include "content/browser/android/child_process_launcher_android.h"
  11 #include "content/browser/frame_host/render_frame_host_impl.h"
  12 #include "content/browser/gpu/browser_gpu_channel_host_factory.h"
  13 #include "content/browser/media/android/browser_media_player_manager.h"
  14 #include "content/public/browser/browser_thread.h"
  15 #include "ui/gl/android/scoped_java_surface.h"
  16 #include "ui/gl/android/surface_texture.h"
  17
  18 namespace content {
  19
  20 // static
  21 BrowserSurfaceTextureManager* BrowserSurfaceTextureManager::GetInstance() {
  22   return Singleton<BrowserSurfaceTextureManager,
  23                    LeakySingletonTraits<BrowserSurfaceTextureManager>>::get();
  24 }
  25
  26 void BrowserSurfaceTextureManager::RegisterSurfaceTexture(
  27     int surface_texture_id,
  28     int client_id,
  29     gfx::SurfaceTexture* surface_texture) {
  30   content::CreateSurfaceTextureSurface(
  31       surface_texture_id, client_id, surface_texture);
  32 }
  33
  34 void BrowserSurfaceTextureManager::UnregisterSurfaceTexture(
  35     int surface_texture_id,
  36     int client_id) {
  37   content::DestroySurfaceTextureSurface(surface_texture_id, client_id);
  38 }
  39
  40 gfx::AcceleratedWidget
  41 BrowserSurfaceTextureManager::AcquireNativeWidgetForSurfaceTexture(
  42     int surface_texture_id) {
  43   gfx::ScopedJavaSurface surface(
  44       content::GetSurfaceTextureSurface(
  45           surface_texture_id,
  46           BrowserGpuChannelHostFactory::instance()->GetGpuChannelId()));
  47   if (surface.j_surface().is_null())
  48     return NULL;
  49
  50   JNIEnv* env = base::android::AttachCurrentThread();
  51   // Note: This ensures that any local references used by
  52   // ANativeWindow_fromSurface are released immediately. This is needed as a
  53   // workaround for https://code.google.com/p/android/issues/detail?id=68174
  54   base::android::ScopedJavaLocalFrame scoped_local_reference_frame(env);
  55   ANativeWindow* native_window =
  56       ANativeWindow_fromSurface(env, surface.j_surface().obj());
  57
  58   return native_window;
  59 }
  60
  61 void BrowserSurfaceTextureManager::EstablishSurfaceTexturePeer(
  62     base::ProcessHandle render_process_handle,
  63     scoped_refptr<gfx::SurfaceTexture> surface_texture,
  64     int render_frame_id,
  65     int player_id) {
  66   if (!surface_texture.get())
  67     return;
  68
  69   BrowserThread::PostTask(
  70       BrowserThread::UI, FROM_HERE,
  71       base::Bind(&BrowserMediaPlayerManager::SetSurfacePeer, surface_texture,
  72                  render_process_handle, render_frame_id, player_id));
  73 }
  74
  75 BrowserSurfaceTextureManager::BrowserSurfaceTextureManager() {
  76   SurfaceTexturePeer::InitInstance(this);
  77 }
  78
  79 BrowserSurfaceTextureManager::~BrowserSurfaceTextureManager() {
  80   SurfaceTexturePeer::InitInstance(nullptr);
  81 }
  82
  83 }  // namespace content