widget/android/AndroidCompositorWidget.cpp

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set sw=2 ts=2 et tw=80 : */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #include "AndroidCompositorWidget.h"
   8
   9 #include "mozilla/gfx/Logging.h"
  10 #include "mozilla/widget/PlatformWidgetTypes.h"
  11 #include "nsWindow.h"
  12
  13 namespace mozilla {
  14 namespace widget {
  15
  16 AndroidCompositorWidget::AndroidCompositorWidget(
  17     const AndroidCompositorWidgetInitData& aInitData,
  18     const layers::CompositorOptions& aOptions)
  19     : CompositorWidget(aOptions),
  20       mWidgetId(aInitData.widgetId()),
  21       mNativeWindow(nullptr),
  22       mFormat(WINDOW_FORMAT_RGBA_8888),
  23       mClientSize(aInitData.clientSize()) {}
  24
  25 AndroidCompositorWidget::~AndroidCompositorWidget() {
  26   if (mNativeWindow) {
  27     ANativeWindow_release(mNativeWindow);
  28   }
  29 }
  30
  31 already_AddRefed<gfx::DrawTarget>
  32 AndroidCompositorWidget::StartRemoteDrawingInRegion(
  33     const LayoutDeviceIntRegion& aInvalidRegion,
  34     layers::BufferMode* aBufferMode) {
  35   if (!mNativeWindow) {
  36     EGLNativeWindowType window = GetEGLNativeWindow();
  37     JNIEnv* const env = jni::GetEnvForThread();
  38     mNativeWindow =
  39         ANativeWindow_fromSurface(env, reinterpret_cast<jobject>(window));
  40     if (mNativeWindow) {
  41       mFormat = ANativeWindow_getFormat(mNativeWindow);
  42       ANativeWindow_acquire(mNativeWindow);
  43     } else {
  44       return nullptr;
  45     }
  46   }
  47
  48   if (mFormat != WINDOW_FORMAT_RGBA_8888 &&
  49       mFormat != WINDOW_FORMAT_RGBX_8888) {
  50     gfxCriticalNoteOnce << "Non supported format: " << mFormat;
  51     return nullptr;
  52   }
  53
  54   // XXX Handle inOutDirtyBounds
  55   if (ANativeWindow_lock(mNativeWindow, &mBuffer, nullptr) != 0) {
  56     return nullptr;
  57   }
  58
  59   const int bpp = 4;
  60   gfx::SurfaceFormat format = gfx::SurfaceFormat::R8G8B8A8;
  61   if (mFormat == WINDOW_FORMAT_RGBX_8888) {
  62     format = gfx::SurfaceFormat::R8G8B8X8;
  63   }
  64
  65   RefPtr<gfx::DrawTarget> dt = gfx::Factory::CreateDrawTargetForData(
  66       gfx::BackendType::SKIA, static_cast<unsigned char*>(mBuffer.bits),
  67       gfx::IntSize(mBuffer.width, mBuffer.height), mBuffer.stride * bpp, format,
  68       true);
  69
  70   return dt.forget();
  71 }
  72
  73 void AndroidCompositorWidget::EndRemoteDrawingInRegion(
  74     gfx::DrawTarget* aDrawTarget, const LayoutDeviceIntRegion& aInvalidRegion) {
  75   ANativeWindow_unlockAndPost(mNativeWindow);
  76 }
  77
  78 bool AndroidCompositorWidget::OnResumeComposition() {
  79   OnCompositorSurfaceChanged();
  80
  81   if (!mSurface) {
  82     gfxCriticalError() << "OnResumeComposition called with null Surface";
  83     return false;
  84   }
  85
  86   return true;
  87 }
  88
  89 EGLNativeWindowType AndroidCompositorWidget::GetEGLNativeWindow() {
  90   return (EGLNativeWindowType)mSurface.Get();
  91 }
  92
  93 LayoutDeviceIntSize AndroidCompositorWidget::GetClientSize() {
  94   return mClientSize;
  95 }
  96
  97 void AndroidCompositorWidget::NotifyClientSizeChanged(
  98     const LayoutDeviceIntSize& aClientSize) {
  99   mClientSize =
 100       LayoutDeviceIntSize(std::min(aClientSize.width, MOZ_WIDGET_MAX_SIZE),
 101                           std::min(aClientSize.height, MOZ_WIDGET_MAX_SIZE));
 102 }
 103
 104 }  // namespace widget
 105 }  // namespace mozilla