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 base::Singleton<
  23       BrowserSurfaceTextureManager,
  24       base::LeakySingletonTraits<BrowserSurfaceTextureManager>>::get();
  25 }
  26
  27 void BrowserSurfaceTextureManager::RegisterSurfaceTexture(
  28     int surface_texture_id,
  29     int client_id,
  30     gfx::SurfaceTexture* surface_texture) {
  31   content::CreateSurfaceTextureSurface(
  32       surface_texture_id, client_id, surface_texture);
  33 }
  34
  35 void BrowserSurfaceTextureManager::UnregisterSurfaceTexture(
  36     int surface_texture_id,
  37     int client_id) {
  38   content::DestroySurfaceTextureSurface(surface_texture_id, client_id);
  39 }
  40
  41 gfx::AcceleratedWidget
  42 BrowserSurfaceTextureManager::AcquireNativeWidgetForSurfaceTexture(
  43     int surface_texture_id) {
  44   gfx::ScopedJavaSurface surface(
  45       content::GetSurfaceTextureSurface(
  46           surface_texture_id,
  47           BrowserGpuChannelHostFactory::instance()->GetGpuChannelId()));
  48   if (surface.j_surface().is_null())
  49     return NULL;
  50
  51   JNIEnv* env = base::android::AttachCurrentThread();
  52   // Note: This ensures that any local references used by
  53   // ANativeWindow_fromSurface are released immediately. This is needed as a
  54   // workaround for https://code.google.com/p/android/issues/detail?id=68174
  55   base::android::ScopedJavaLocalFrame scoped_local_reference_frame(env);
  56   ANativeWindow* native_window =
  57       ANativeWindow_fromSurface(env, surface.j_surface().obj());
  58
  59   return native_window;
  60 }
  61
  62 void BrowserSurfaceTextureManager::EstablishSurfaceTexturePeer(
  63     base::ProcessHandle render_process_handle,
  64     scoped_refptr<gfx::SurfaceTexture> surface_texture,
  65     int render_frame_id,
  66     int player_id) {
  67   if (!surface_texture.get())
  68     return;
  69
  70   BrowserThread::PostTask(
  71       BrowserThread::UI, FROM_HERE,
  72       base::Bind(&BrowserMediaPlayerManager::SetSurfacePeer, surface_texture,
  73                  render_process_handle, render_frame_id, player_id));
  74 }
  75
  76 BrowserSurfaceTextureManager::BrowserSurfaceTextureManager() {
  77   SurfaceTexturePeer::InitInstance(this);
  78 }
  79
  80 BrowserSurfaceTextureManager::~BrowserSurfaceTextureManager() {
  81   SurfaceTexturePeer::InitInstance(nullptr);
  82 }
  83
  84 }  // namespace content