src/content/browser/android/content_view_render_view.cc

   1 // Copyright (c) 2012 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/content_view_render_view.h"
   6
   7 #include "base/android/jni_android.h"
   8 #include "base/android/jni_string.h"
   9 #include "base/android/scoped_java_ref.h"
  10 #include "base/bind.h"
  11 #include "base/lazy_instance.h"
  12 #include "base/memory/scoped_ptr.h"
  13 #include "base/message_loop/message_loop.h"
  14 #include "cc/layers/layer.h"
  15 #include "content/browser/android/content_view_core_impl.h"
  16 #include "content/public/browser/android/compositor.h"
  17 #include "content/public/browser/android/content_view_layer_renderer.h"
  18 #include "jni/ContentViewRenderView_jni.h"
  19 #include "ui/gfx/android/java_bitmap.h"
  20 #include "ui/gfx/size.h"
  21
  22 #include <android/bitmap.h>
  23 #include <android/native_window_jni.h>
  24
  25 using base::android::ScopedJavaLocalRef;
  26
  27 namespace content {
  28
  29 // static
  30 bool ContentViewRenderView::RegisterContentViewRenderView(JNIEnv* env) {
  31   return RegisterNativesImpl(env);
  32 }
  33
  34 ContentViewRenderView::ContentViewRenderView(JNIEnv* env,
  35                                              jobject obj,
  36                                              gfx::NativeWindow root_window)
  37     : buffers_swapped_during_composite_(false),
  38       root_window_(root_window) {
  39   java_obj_.Reset(env, obj);
  40 }
  41
  42 ContentViewRenderView::~ContentViewRenderView() {
  43 }
  44
  45 // static
  46 static jlong Init(JNIEnv* env, jobject obj, jlong native_root_window) {
  47   gfx::NativeWindow root_window =
  48       reinterpret_cast<gfx::NativeWindow>(native_root_window);
  49   ContentViewRenderView* content_view_render_view =
  50       new ContentViewRenderView(env, obj, root_window);
  51   return reinterpret_cast<intptr_t>(content_view_render_view);
  52 }
  53
  54 void ContentViewRenderView::Destroy(JNIEnv* env, jobject obj) {
  55   delete this;
  56 }
  57
  58 void ContentViewRenderView::SetCurrentContentView(
  59     JNIEnv* env, jobject obj, int native_content_view) {
  60   InitCompositor();
  61   ContentViewCoreImpl* content_view =
  62       reinterpret_cast<ContentViewCoreImpl*>(native_content_view);
  63   if (content_view)
  64     compositor_->SetRootLayer(content_view->GetLayer());
  65   else
  66     compositor_->SetRootLayer(cc::Layer::Create());
  67 }
  68
  69 void ContentViewRenderView::SurfaceCreated(
  70     JNIEnv* env, jobject obj, jobject jsurface) {
  71   InitCompositor();
  72   compositor_->SetSurface(jsurface);
  73 }
  74
  75 void ContentViewRenderView::SurfaceDestroyed(JNIEnv* env, jobject obj) {
  76   compositor_->SetSurface(NULL);
  77 }
  78
  79 void ContentViewRenderView::SurfaceSetSize(
  80     JNIEnv* env, jobject obj, jint width, jint height) {
  81   compositor_->SetWindowBounds(gfx::Size(width, height));
  82 }
  83
  84 jboolean ContentViewRenderView::Composite(JNIEnv* env, jobject obj) {
  85   if (!compositor_)
  86     return false;
  87
  88   buffers_swapped_during_composite_ = false;
  89   compositor_->Composite();
  90   return buffers_swapped_during_composite_;
  91 }
  92
  93 jboolean ContentViewRenderView::CompositeToBitmap(JNIEnv* env, jobject obj,
  94                                                   jobject java_bitmap) {
  95   gfx::JavaBitmap bitmap(java_bitmap);
  96   if (!compositor_ || bitmap.format() != ANDROID_BITMAP_FORMAT_RGBA_8888)
  97     return false;
  98   return compositor_->CompositeAndReadback(bitmap.pixels(),
  99                                            gfx::Rect(bitmap.size()));
 100 }
 101
 102 void ContentViewRenderView::SetOverlayVideoMode(
 103     JNIEnv* env, jobject obj, bool enabled) {
 104   compositor_->SetHasTransparentBackground(enabled);
 105   Java_ContentViewRenderView_requestRender(env, obj);
 106 }
 107
 108 void ContentViewRenderView::ScheduleComposite() {
 109   JNIEnv* env = base::android::AttachCurrentThread();
 110   Java_ContentViewRenderView_requestRender(env, java_obj_.obj());
 111 }
 112
 113 void ContentViewRenderView::OnSwapBuffersPosted() {
 114   buffers_swapped_during_composite_ = true;
 115 }
 116
 117 void ContentViewRenderView::OnSwapBuffersCompleted() {
 118   JNIEnv* env = base::android::AttachCurrentThread();
 119   Java_ContentViewRenderView_onSwapBuffersCompleted(env, java_obj_.obj());
 120 }
 121
 122 void ContentViewRenderView::InitCompositor() {
 123   if (!compositor_)
 124     compositor_.reset(Compositor::Create(this, root_window_));
 125 }
 126
 127 }  // namespace content