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gecko/widget/gonk/nsWindow.cpp
Nathan Froyd bb51644dac Bug 1160485 - remove implicit conversion from RefPtr<T> to TemporaryRef<T>; r=ehsan 
Having this implicit conversion means that we can silently do extra
refcounting when it's completely unnecessary.  It's also an obstacle to
making RefPtr more nsRefPtr-like, so let's get rid of it.
2015-05-01 09:14:16 -04:00

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/* Copyright 2012 Mozilla Foundation and Mozilla contributors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "mozilla/DebugOnly.h"
#include <fcntl.h>
#include "android/log.h"
#include "mozilla/dom/TabParent.h"
#include "mozilla/Hal.h"
#include "mozilla/Preferences.h"
#include "mozilla/ProcessPriorityManager.h"
#include "mozilla/Services.h"
#include "mozilla/FileUtils.h"
#include "mozilla/ClearOnShutdown.h"
#include "gfxContext.h"
#include "gfxPlatform.h"
#include "gfxUtils.h"
#include "GLContextProvider.h"
#include "GLContext.h"
#include "GLContextEGL.h"
#include "nsAutoPtr.h"
#include "nsAppShell.h"
#include "nsIdleService.h"
#include "nsIObserverService.h"
#include "nsScreenManagerGonk.h"
#include "nsTArray.h"
#include "nsWindow.h"
#include "nsIWidgetListener.h"
#include "cutils/properties.h"
#include "ClientLayerManager.h"
#include "BasicLayers.h"
#include "libdisplay/GonkDisplay.h"
#include "pixelflinger/format.h"
#include "mozilla/TextEvents.h"
#include "mozilla/gfx/2D.h"
#include "mozilla/gfx/Logging.h"
#include "mozilla/layers/APZCTreeManager.h"
#include "mozilla/layers/APZThreadUtils.h"
#include "mozilla/layers/CompositorParent.h"
#include "mozilla/layers/InputAPZContext.h"
#include "mozilla/MouseEvents.h"
#include "mozilla/TouchEvents.h"
#include "nsThreadUtils.h"
#include "HwcComposer2D.h"
#include "VsyncSource.h"
#define LOG(args...) __android_log_print(ANDROID_LOG_INFO, "Gonk" , ## args)
#define LOGW(args...) __android_log_print(ANDROID_LOG_WARN, "Gonk", ## args)
#define LOGE(args...) __android_log_print(ANDROID_LOG_ERROR, "Gonk", ## args)
#define IS_TOPLEVEL() (mWindowType == eWindowType_toplevel || mWindowType == eWindowType_dialog)
using namespace mozilla;
using namespace mozilla::dom;
using namespace mozilla::hal;
using namespace mozilla::gfx;
using namespace mozilla::gl;
using namespace mozilla::layers;
using namespace mozilla::widget;
static nsWindow *gFocusedWindow = nullptr;
namespace {
class ScreenOnOffEvent : public nsRunnable {
public:
ScreenOnOffEvent(bool on)
: mIsOn(on)
{}
NS_IMETHOD Run() {
// Notify observers that the screen state has just changed.
nsCOMPtr<nsIObserverService> observerService = mozilla::services::GetObserverService();
if (observerService) {
observerService->NotifyObservers(
nullptr, "screen-state-changed",
mIsOn ? MOZ_UTF16("on") : MOZ_UTF16("off")
);
}
nsRefPtr<nsScreenGonk> screen = nsScreenManagerGonk::GetPrimaryScreen();
const nsTArray<nsWindow*>& windows = screen->GetTopWindows();
for (uint32_t i = 0; i < windows.Length(); i++) {
nsWindow *win = windows[i];
if (nsIWidgetListener* listener = win->GetWidgetListener()) {
listener->SizeModeChanged(mIsOn ? nsSizeMode_Fullscreen : nsSizeMode_Minimized);
}
}
return NS_OK;
}
private:
bool mIsOn;
};
static void
displayEnabledCallback(bool enabled)
{
nsRefPtr<nsScreenManagerGonk> screenManager = nsScreenManagerGonk::GetInstance();
screenManager->DisplayEnabled(enabled);
}
} // anonymous namespace
NS_IMPL_ISUPPORTS_INHERITED0(nsWindow, nsBaseWidget)
nsWindow::nsWindow()
{
mFramebuffer = nullptr;
nsRefPtr<nsScreenManagerGonk> screenManager = nsScreenManagerGonk::GetInstance();
screenManager->Initialize();
// This is a hack to force initialization of the compositor
// resources, if we're going to use omtc.
//
// NB: GetPlatform() will create the gfxPlatform, which wants
// to know the color depth, which asks our native window.
// This has to happen after other init has finished.
gfxPlatform::GetPlatform();
if (!ShouldUseOffMainThreadCompositing()) {
MOZ_CRASH("How can we render apps, then?");
}
}
nsWindow::~nsWindow()
{
if (mScreen->IsPrimaryScreen()) {
HwcComposer2D::GetInstance()->SetCompositorParent(nullptr);
}
}
void
nsWindow::DoDraw(void)
{
if (!hal::GetScreenEnabled()) {
gDrawRequest = true;
return;
}
nsRefPtr<nsScreenGonk> screen = nsScreenManagerGonk::GetPrimaryScreen();
const nsTArray<nsWindow*>& windows = screen->GetTopWindows();
if (windows.IsEmpty()) {
LOG(" no window to draw, bailing");
return;
}
nsWindow *targetWindow = (nsWindow *)windows[0];
while (targetWindow->GetLastChild()) {
targetWindow = (nsWindow *)targetWindow->GetLastChild();
}
nsIWidgetListener* listener = targetWindow->GetWidgetListener();
if (listener) {
listener->WillPaintWindow(targetWindow);
}
LayerManager* lm = targetWindow->GetLayerManager();
if (mozilla::layers::LayersBackend::LAYERS_CLIENT == lm->GetBackendType()) {
// No need to do anything, the compositor will handle drawing
} else {
NS_RUNTIMEABORT("Unexpected layer manager type");
}
listener = targetWindow->GetWidgetListener();
if (listener) {
listener->DidPaintWindow();
}
}
void
nsWindow::ConfigureAPZControllerThread()
{
APZThreadUtils::SetControllerThread(CompositorParent::CompositorLoop());
}
/*static*/ nsEventStatus
nsWindow::DispatchKeyInput(WidgetKeyboardEvent& aEvent)
{
if (!gFocusedWindow) {
return nsEventStatus_eIgnore;
}
gFocusedWindow->UserActivity();
nsEventStatus status;
aEvent.widget = gFocusedWindow;
gFocusedWindow->DispatchEvent(&aEvent, status);
return status;
}
/*static*/ void
nsWindow::DispatchTouchInput(MultiTouchInput& aInput)
{
APZThreadUtils::AssertOnControllerThread();
if (!gFocusedWindow) {
return;
}
gFocusedWindow->DispatchTouchInputViaAPZ(aInput);
}
class DispatchTouchInputOnMainThread : public nsRunnable
{
public:
DispatchTouchInputOnMainThread(const MultiTouchInput& aInput,
const ScrollableLayerGuid& aGuid,
const uint64_t& aInputBlockId,
nsEventStatus aApzResponse)
: mInput(aInput)
, mGuid(aGuid)
, mInputBlockId(aInputBlockId)
, mApzResponse(aApzResponse)
{}
NS_IMETHOD Run() {
if (gFocusedWindow) {
gFocusedWindow->DispatchTouchEventForAPZ(mInput, mGuid, mInputBlockId, mApzResponse);
}
return NS_OK;
}
private:
MultiTouchInput mInput;
ScrollableLayerGuid mGuid;
uint64_t mInputBlockId;
nsEventStatus mApzResponse;
};
void
nsWindow::DispatchTouchInputViaAPZ(MultiTouchInput& aInput)
{
APZThreadUtils::AssertOnControllerThread();
if (!mAPZC) {
// In general mAPZC should not be null, but during initial setup
// it might be, so we handle that case by ignoring touch input there.
return;
}
// First send it through the APZ code
mozilla::layers::ScrollableLayerGuid guid;
uint64_t inputBlockId;
nsEventStatus result = mAPZC->ReceiveInputEvent(aInput, &guid, &inputBlockId);
// If the APZ says to drop it, then we drop it
if (result == nsEventStatus_eConsumeNoDefault) {
return;
}
// Can't use NS_NewRunnableMethod because it only takes up to one arg and
// we need more. Also we can't pass in |this| to the task because nsWindow
// refcounting is not threadsafe. Instead we just use the gFocusedWindow
// static ptr inside the task.
NS_DispatchToMainThread(new DispatchTouchInputOnMainThread(
aInput, guid, inputBlockId, result));
}
void
nsWindow::DispatchTouchEventForAPZ(const MultiTouchInput& aInput,
const ScrollableLayerGuid& aGuid,
const uint64_t aInputBlockId,
nsEventStatus aApzResponse)
{
MOZ_ASSERT(NS_IsMainThread());
UserActivity();
// Convert it to an event we can send to Gecko
WidgetTouchEvent event = aInput.ToWidgetTouchEvent(this);
// Dispatch the event into the gecko root process for "normal" flow.
// The event might get sent to a child process,
// but if it doesn't we need to notify the APZ of various things.
// All of that happens in ProcessUntransformedAPZEvent
ProcessUntransformedAPZEvent(&event, aGuid, aInputBlockId, aApzResponse);
}
class DispatchTouchInputOnControllerThread : public Task
{
public:
DispatchTouchInputOnControllerThread(const MultiTouchInput& aInput)
: Task()
, mInput(aInput)
{}
virtual void Run() override {
if (gFocusedWindow) {
gFocusedWindow->DispatchTouchInputViaAPZ(mInput);
}
}
private:
MultiTouchInput mInput;
};
nsresult
nsWindow::SynthesizeNativeTouchPoint(uint32_t aPointerId,
TouchPointerState aPointerState,
nsIntPoint aPointerScreenPoint,
double aPointerPressure,
uint32_t aPointerOrientation,
nsIObserver* aObserver)
{
AutoObserverNotifier notifier(aObserver, "touchpoint");
if (aPointerState == TOUCH_HOVER) {
return NS_ERROR_UNEXPECTED;
}
if (!mSynthesizedTouchInput) {
mSynthesizedTouchInput = new MultiTouchInput();
}
// We can't dispatch mSynthesizedTouchInput directly because (a) dispatching
// it might inadvertently modify it and (b) in the case of touchend or
// touchcancel events mSynthesizedTouchInput will hold the touches that are
// still down whereas the input dispatched needs to hold the removed
// touch(es). We use |inputToDispatch| for this purpose.
MultiTouchInput inputToDispatch;
inputToDispatch.mInputType = MULTITOUCH_INPUT;
int32_t index = mSynthesizedTouchInput->IndexOfTouch((int32_t)aPointerId);
if (aPointerState == TOUCH_CONTACT) {
if (index >= 0) {
// found an existing touch point, update it
SingleTouchData& point = mSynthesizedTouchInput->mTouches[index];
point.mScreenPoint = ScreenIntPoint::FromUntyped(aPointerScreenPoint);
point.mRotationAngle = (float)aPointerOrientation;
point.mForce = (float)aPointerPressure;
inputToDispatch.mType = MultiTouchInput::MULTITOUCH_MOVE;
} else {
// new touch point, add it
mSynthesizedTouchInput->mTouches.AppendElement(SingleTouchData(
(int32_t)aPointerId,
ScreenIntPoint::FromUntyped(aPointerScreenPoint),
ScreenSize(0, 0),
(float)aPointerOrientation,
(float)aPointerPressure));
inputToDispatch.mType = MultiTouchInput::MULTITOUCH_START;
}
inputToDispatch.mTouches = mSynthesizedTouchInput->mTouches;
} else {
MOZ_ASSERT(aPointerState == TOUCH_REMOVE || aPointerState == TOUCH_CANCEL);
// a touch point is being lifted, so remove it from the stored list
if (index >= 0) {
mSynthesizedTouchInput->mTouches.RemoveElementAt(index);
}
inputToDispatch.mType = (aPointerState == TOUCH_REMOVE
? MultiTouchInput::MULTITOUCH_END
: MultiTouchInput::MULTITOUCH_CANCEL);
inputToDispatch.mTouches.AppendElement(SingleTouchData(
(int32_t)aPointerId,
ScreenIntPoint::FromUntyped(aPointerScreenPoint),
ScreenSize(0, 0),
(float)aPointerOrientation,
(float)aPointerPressure));
}
// Can't use NewRunnableMethod here because that will pass a const-ref
// argument to DispatchTouchInputViaAPZ whereas that function takes a
// non-const ref. At this callsite we don't care about the mutations that
// the function performs so this is fine. Also we can't pass |this| to the
// task because nsWindow refcounting is not threadsafe. Instead we just use
// the gFocusedWindow static ptr instead the task.
APZThreadUtils::RunOnControllerThread(new DispatchTouchInputOnControllerThread(inputToDispatch));
return NS_OK;
}
NS_IMETHODIMP
nsWindow::Create(nsIWidget *aParent,
void *aNativeParent,
const nsIntRect &aRect,
nsWidgetInitData *aInitData)
{
BaseCreate(aParent, aRect, aInitData);
nsCOMPtr<nsIScreen> screen;
uint32_t screenId = aParent ? ((nsWindow*)aParent)->mScreen->GetId() :
aInitData->mScreenId;
nsRefPtr<nsScreenManagerGonk> screenManager = nsScreenManagerGonk::GetInstance();
screenManager->ScreenForId(screenId, getter_AddRefs(screen));
mScreen = static_cast<nsScreenGonk*>(screen.get());
mBounds = aRect;
mParent = (nsWindow *)aParent;
mVisible = false;
if (!aParent) {
mBounds = mScreen->GetRect();
}
if (!IS_TOPLEVEL()) {
return NS_OK;
}
mScreen->RegisterWindow(this);
Resize(0, 0, mBounds.width, mBounds.height, false);
return NS_OK;
}
NS_IMETHODIMP
nsWindow::Destroy(void)
{
mOnDestroyCalled = true;
mScreen->UnregisterWindow(this);
if (this == gFocusedWindow) {
gFocusedWindow = nullptr;
}
nsBaseWidget::OnDestroy();
return NS_OK;
}
NS_IMETHODIMP
nsWindow::Show(bool aState)
{
if (mWindowType == eWindowType_invisible) {
return NS_OK;
}
if (mVisible == aState) {
return NS_OK;
}
mVisible = aState;
if (!IS_TOPLEVEL()) {
return mParent ? mParent->Show(aState) : NS_OK;
}
if (aState) {
BringToTop();
} else {
const nsTArray<nsWindow*>& windows =
mScreen->GetTopWindows();
for (unsigned int i = 0; i < windows.Length(); i++) {
nsWindow *win = windows[i];
if (!win->mVisible) {
continue;
}
win->BringToTop();
break;
}
}
return NS_OK;
}
bool
nsWindow::IsVisible() const
{
return mVisible;
}
NS_IMETHODIMP
nsWindow::ConstrainPosition(bool aAllowSlop,
int32_t *aX,
int32_t *aY)
{
return NS_OK;
}
NS_IMETHODIMP
nsWindow::Move(double aX,
double aY)
{
return NS_OK;
}
NS_IMETHODIMP
nsWindow::Resize(double aWidth,
double aHeight,
bool aRepaint)
{
return Resize(0, 0, aWidth, aHeight, aRepaint);
}
NS_IMETHODIMP
nsWindow::Resize(double aX,
double aY,
double aWidth,
double aHeight,
bool aRepaint)
{
mBounds = nsIntRect(NSToIntRound(aX), NSToIntRound(aY),
NSToIntRound(aWidth), NSToIntRound(aHeight));
if (mWidgetListener) {
mWidgetListener->WindowResized(this, mBounds.width, mBounds.height);
}
if (aRepaint) {
Invalidate(mBounds);
}
return NS_OK;
}
NS_IMETHODIMP
nsWindow::Enable(bool aState)
{
return NS_OK;
}
bool
nsWindow::IsEnabled() const
{
return true;
}
NS_IMETHODIMP
nsWindow::SetFocus(bool aRaise)
{
if (aRaise) {
BringToTop();
}
if (!IS_TOPLEVEL() && mScreen->IsPrimaryScreen()) {
// We should only set focused window on non-toplevel primary window.
gFocusedWindow = this;
}
return NS_OK;
}
NS_IMETHODIMP
nsWindow::ConfigureChildren(const nsTArray<nsIWidget::Configuration>&)
{
return NS_OK;
}
NS_IMETHODIMP
nsWindow::Invalidate(const nsIntRect &aRect)
{
nsWindow *top = mParent;
while (top && top->mParent) {
top = top->mParent;
}
const nsTArray<nsWindow*>& windows = mScreen->GetTopWindows();
if (top != windows[0] && this != windows[0]) {
return NS_OK;
}
gDrawRequest = true;
mozilla::NotifyEvent();
return NS_OK;
}
LayoutDeviceIntPoint
nsWindow::WidgetToScreenOffset()
{
LayoutDeviceIntPoint p(0, 0);
nsWindow *w = this;
while (w && w->mParent) {
p.x += w->mBounds.x;
p.y += w->mBounds.y;
w = w->mParent;
}
return p;
}
void*
nsWindow::GetNativeData(uint32_t aDataType)
{
switch (aDataType) {
case NS_NATIVE_WINDOW:
// Called before primary display's EGLSurface creation.
return mScreen->GetNativeWindow();
}
return nullptr;
}
void
nsWindow::SetNativeData(uint32_t aDataType, uintptr_t aVal)
{
switch (aDataType) {
case NS_NATIVE_OPENGL_CONTEXT:
// Called after primary display's GLContextEGL creation.
GLContext* context = reinterpret_cast<GLContext*>(aVal);
HwcComposer2D* hwc = HwcComposer2D::GetInstance();
hwc->SetEGLInfo(GLContextEGL::Cast(context)->GetEGLDisplay(),
GLContextEGL::Cast(context)->GetEGLSurface(),
context);
return;
}
}
NS_IMETHODIMP
nsWindow::DispatchEvent(WidgetGUIEvent* aEvent, nsEventStatus& aStatus)
{
if (mWidgetListener) {
aStatus = mWidgetListener->HandleEvent(aEvent, mUseAttachedEvents);
}
return NS_OK;
}
NS_IMETHODIMP_(void)
nsWindow::SetInputContext(const InputContext& aContext,
const InputContextAction& aAction)
{
mInputContext = aContext;
}
NS_IMETHODIMP_(InputContext)
nsWindow::GetInputContext()
{
// There is only one IME context on Gonk.
mInputContext.mNativeIMEContext = nullptr;
return mInputContext;
}
NS_IMETHODIMP
nsWindow::ReparentNativeWidget(nsIWidget* aNewParent)
{
return NS_OK;
}
NS_IMETHODIMP
nsWindow::MakeFullScreen(bool aFullScreen, nsIScreen*)
{
if (mWindowType != eWindowType_toplevel) {
// Ignore fullscreen request for non-toplevel windows.
NS_WARNING("MakeFullScreen() on a dialog or child widget?");
return nsBaseWidget::MakeFullScreen(aFullScreen);
}
if (aFullScreen) {
// Fullscreen is "sticky" for toplevel widgets on gonk: we
// must paint the entire screen, and should only have one
// toplevel widget, so it doesn't make sense to ever "exit"
// fullscreen. If we do, we can leave parts of the screen
// unpainted.
nsIntRect virtualBounds;
mScreen->GetRect(&virtualBounds.x, &virtualBounds.y,
&virtualBounds.width, &virtualBounds.height);
Resize(virtualBounds.x, virtualBounds.y,
virtualBounds.width, virtualBounds.height,
/*repaint*/true);
}
return NS_OK;
}
static gralloc_module_t const*
gralloc_module()
{
hw_module_t const *module;
if (hw_get_module(GRALLOC_HARDWARE_MODULE_ID, &module)) {
return nullptr;
}
return reinterpret_cast<gralloc_module_t const*>(module);
}
static SurfaceFormat
HalFormatToSurfaceFormat(int aHalFormat, int* bytepp)
{
switch (aHalFormat) {
case HAL_PIXEL_FORMAT_RGBA_8888:
*bytepp = 4;
return SurfaceFormat::R8G8B8A8;
case HAL_PIXEL_FORMAT_RGBX_8888:
*bytepp = 4;
return SurfaceFormat::R8G8B8X8;
case HAL_PIXEL_FORMAT_BGRA_8888:
*bytepp = 4;
return SurfaceFormat::B8G8R8A8;
case HAL_PIXEL_FORMAT_RGB_565:
*bytepp = 2;
return SurfaceFormat::R5G6B5;
default:
MOZ_CRASH("Unhandled HAL pixel format");
return SurfaceFormat::UNKNOWN; // not reached
}
}
TemporaryRef<DrawTarget>
nsWindow::StartRemoteDrawing()
{
GonkDisplay* display = GetGonkDisplay();
mFramebuffer = display->DequeueBuffer();
int width = mFramebuffer->width, height = mFramebuffer->height;
void *vaddr;
if (gralloc_module()->lock(gralloc_module(), mFramebuffer->handle,
GRALLOC_USAGE_SW_READ_NEVER |
GRALLOC_USAGE_SW_WRITE_OFTEN |
GRALLOC_USAGE_HW_FB,
0, 0, width, height, &vaddr)) {
EndRemoteDrawing();
return nullptr;
}
int bytepp;
SurfaceFormat format = HalFormatToSurfaceFormat(display->surfaceformat,
&bytepp);
mFramebufferTarget = Factory::CreateDrawTargetForData(
BackendType::CAIRO, (uint8_t*)vaddr,
IntSize(width, height), mFramebuffer->stride * bytepp, format);
if (!mFramebufferTarget) {
MOZ_CRASH("nsWindow::StartRemoteDrawing failed in CreateDrawTargetForData");
}
if (!mBackBuffer ||
mBackBuffer->GetSize() != mFramebufferTarget->GetSize() ||
mBackBuffer->GetFormat() != mFramebufferTarget->GetFormat()) {
mBackBuffer = mFramebufferTarget->CreateSimilarDrawTarget(
mFramebufferTarget->GetSize(), mFramebufferTarget->GetFormat());
}
RefPtr<DrawTarget> buffer(mBackBuffer);
return buffer.forget();
}
void
nsWindow::EndRemoteDrawing()
{
if (mFramebufferTarget) {
IntSize size = mFramebufferTarget->GetSize();
Rect rect(0, 0, size.width, size.height);
RefPtr<SourceSurface> source = mBackBuffer->Snapshot();
mFramebufferTarget->DrawSurface(source, rect, rect);
gralloc_module()->unlock(gralloc_module(), mFramebuffer->handle);
}
if (mFramebuffer) {
GetGonkDisplay()->QueueBuffer(mFramebuffer);
}
mFramebuffer = nullptr;
mFramebufferTarget = nullptr;
}
float
nsWindow::GetDPI()
{
return mScreen->GetDpi();
}
double
nsWindow::GetDefaultScaleInternal()
{
float dpi = GetDPI();
// The mean pixel density for mdpi devices is 160dpi, 240dpi for hdpi,
// and 320dpi for xhdpi, respectively.
// We'll take the mid-value between these three numbers as the boundary.
if (dpi < 200.0) {
return 1.0; // mdpi devices.
}
if (dpi < 300.0) {
return 1.5; // hdpi devices.
}
// xhdpi devices and beyond.
return floor(dpi / 150.0 + 0.5);
}
LayerManager *
nsWindow::GetLayerManager(PLayerTransactionChild* aShadowManager,
LayersBackend aBackendHint,
LayerManagerPersistence aPersistence,
bool* aAllowRetaining)
{
if (aAllowRetaining) {
*aAllowRetaining = true;
}
if (mLayerManager) {
// This layer manager might be used for painting outside of DoDraw(), so we need
// to set the correct rotation on it.
if (mLayerManager->GetBackendType() == LayersBackend::LAYERS_CLIENT) {
ClientLayerManager* manager =
static_cast<ClientLayerManager*>(mLayerManager.get());
uint32_t rotation = mScreen->EffectiveScreenRotation();
manager->SetDefaultTargetConfiguration(mozilla::layers::BufferMode::BUFFER_NONE,
ScreenRotation(rotation));
}
return mLayerManager;
}
// Set mUseLayersAcceleration here to make it consistent with
// nsBaseWidget::GetLayerManager
mUseLayersAcceleration = ComputeShouldAccelerate(mUseLayersAcceleration);
const nsTArray<nsWindow*>& windows = mScreen->GetTopWindows();
nsWindow *topWindow = windows[0];
if (!topWindow) {
LOGW(" -- no topwindow\n");
return nullptr;
}
CreateCompositor();
if (mCompositorParent && mScreen->IsPrimaryScreen()) {
HwcComposer2D::GetInstance()->SetCompositorParent(mCompositorParent);
}
MOZ_ASSERT(mLayerManager);
return mLayerManager;
}
void
nsWindow::BringToTop()
{
const nsTArray<nsWindow*>& windows = mScreen->GetTopWindows();
if (!windows.IsEmpty()) {
if (nsIWidgetListener* listener = windows[0]->GetWidgetListener()) {
listener->WindowDeactivated();
}
}
mScreen->BringToTop(this);
if (mWidgetListener) {
mWidgetListener->WindowActivated();
}
Invalidate(mBounds);
}
void
nsWindow::UserActivity()
{
if (!mIdleService) {
mIdleService = do_GetService("@mozilla.org/widget/idleservice;1");
}
if (mIdleService) {
mIdleService->ResetIdleTimeOut(0);
}
}
uint32_t
nsWindow::GetGLFrameBufferFormat()
{
if (mLayerManager &&
mLayerManager->GetBackendType() == mozilla::layers::LayersBackend::LAYERS_OPENGL) {
// We directly map the hardware fb on Gonk. The hardware fb
// has RGB format.
return LOCAL_GL_RGB;
}
return LOCAL_GL_NONE;
}
nsIntRect
nsWindow::GetNaturalBounds()
{
return mScreen->GetNaturalBounds();
}
bool
nsWindow::NeedsPaint()
{
if (!mLayerManager) {
return false;
}
return nsIWidget::NeedsPaint();
}
Composer2D*
nsWindow::GetComposer2D()
{
if (!mScreen->IsPrimaryScreen()) {
return nullptr;
}
return HwcComposer2D::GetInstance();
}
static uint32_t
SurfaceFormatToColorDepth(int32_t aSurfaceFormat)
{
switch (aSurfaceFormat) {
case GGL_PIXEL_FORMAT_RGB_565:
return 16;
case GGL_PIXEL_FORMAT_RGBA_8888:
return 32;
}
return 24; // GGL_PIXEL_FORMAT_RGBX_8888
}
// nsScreenGonk.cpp
nsScreenGonk::nsScreenGonk(uint32_t aId, ANativeWindow* aNativeWindow)
: mId(aId)
, mNativeWindow(aNativeWindow)
, mScreenRotation(nsIScreen::ROTATION_0_DEG)
, mPhysicalScreenRotation(nsIScreen::ROTATION_0_DEG)
{
int surfaceFormat;
if (mNativeWindow->query(mNativeWindow.get(), NATIVE_WINDOW_WIDTH, &mVirtualBounds.width) ||
mNativeWindow->query(mNativeWindow.get(), NATIVE_WINDOW_HEIGHT, &mVirtualBounds.height) ||
mNativeWindow->query(mNativeWindow.get(), NATIVE_WINDOW_FORMAT, &surfaceFormat)) {
NS_RUNTIMEABORT("Failed to get native window size, aborting...");
}
mNaturalBounds = mVirtualBounds;
if (IsPrimaryScreen()) {
char propValue[PROPERTY_VALUE_MAX];
property_get("ro.sf.hwrotation", propValue, "0");
mPhysicalScreenRotation = atoi(propValue) / 90;
}
mDpi = GetGonkDisplay()->xdpi;
mColorDepth = SurfaceFormatToColorDepth(surfaceFormat);
}
nsScreenGonk::~nsScreenGonk()
{
}
bool
nsScreenGonk::IsPrimaryScreen()
{
return nsScreenManagerGonk::PRIMARY_SCREEN_ID == mId;
}
NS_IMETHODIMP
nsScreenGonk::GetId(uint32_t *outId)
{
*outId = mId;
return NS_OK;
}
uint32_t
nsScreenGonk::GetId()
{
return mId;
}
NS_IMETHODIMP
nsScreenGonk::GetRect(int32_t *outLeft, int32_t *outTop,
int32_t *outWidth, int32_t *outHeight)
{
*outLeft = mVirtualBounds.x;
*outTop = mVirtualBounds.y;
*outWidth = mVirtualBounds.width;
*outHeight = mVirtualBounds.height;
return NS_OK;
}
nsIntRect
nsScreenGonk::GetRect()
{
return mVirtualBounds;
}
NS_IMETHODIMP
nsScreenGonk::GetAvailRect(int32_t *outLeft, int32_t *outTop,
int32_t *outWidth, int32_t *outHeight)
{
return GetRect(outLeft, outTop, outWidth, outHeight);
}
NS_IMETHODIMP
nsScreenGonk::GetPixelDepth(int32_t *aPixelDepth)
{
// XXX: this should actually return 32 when we're using 24-bit
// color, because we use RGBX.
*aPixelDepth = mColorDepth;
return NS_OK;
}
NS_IMETHODIMP
nsScreenGonk::GetColorDepth(int32_t *aColorDepth)
{
*aColorDepth = mColorDepth;
return NS_OK;
}
NS_IMETHODIMP
nsScreenGonk::GetRotation(uint32_t* aRotation)
{
*aRotation = mScreenRotation;
return NS_OK;
}
float
nsScreenGonk::GetDpi()
{
return mDpi;
}
ANativeWindow*
nsScreenGonk::GetNativeWindow()
{
return mNativeWindow.get();
}
NS_IMETHODIMP
nsScreenGonk::SetRotation(uint32_t aRotation)
{
if (!(aRotation <= ROTATION_270_DEG)) {
return NS_ERROR_ILLEGAL_VALUE;
}
if (mScreenRotation == aRotation) {
return NS_OK;
}
mScreenRotation = aRotation;
uint32_t rotation = EffectiveScreenRotation();
if (rotation == nsIScreen::ROTATION_90_DEG ||
rotation == nsIScreen::ROTATION_270_DEG) {
mVirtualBounds = nsIntRect(0, 0,
mNaturalBounds.height,
mNaturalBounds.width);
} else {
mVirtualBounds = mNaturalBounds;
}
nsAppShell::NotifyScreenRotation();
for (unsigned int i = 0; i < mTopWindows.Length(); i++) {
mTopWindows[i]->Resize(mVirtualBounds.width,
mVirtualBounds.height,
true);
}
return NS_OK;
}
nsIntRect
nsScreenGonk::GetNaturalBounds()
{
return mNaturalBounds;
}
uint32_t
nsScreenGonk::EffectiveScreenRotation()
{
return (mScreenRotation + mPhysicalScreenRotation) % (360 / 90);
}
// NB: This isn't gonk-specific, but gonk is the only widget backend
// that does this calculation itself, currently.
static ScreenOrientation
ComputeOrientation(uint32_t aRotation, const nsIntSize& aScreenSize)
{
bool naturallyPortrait = (aScreenSize.height > aScreenSize.width);
switch (aRotation) {
case nsIScreen::ROTATION_0_DEG:
return (naturallyPortrait ? eScreenOrientation_PortraitPrimary :
eScreenOrientation_LandscapePrimary);
case nsIScreen::ROTATION_90_DEG:
// Arbitrarily choosing 90deg to be primary "unnatural"
// rotation.
return (naturallyPortrait ? eScreenOrientation_LandscapePrimary :
eScreenOrientation_PortraitPrimary);
case nsIScreen::ROTATION_180_DEG:
return (naturallyPortrait ? eScreenOrientation_PortraitSecondary :
eScreenOrientation_LandscapeSecondary);
case nsIScreen::ROTATION_270_DEG:
return (naturallyPortrait ? eScreenOrientation_LandscapeSecondary :
eScreenOrientation_PortraitSecondary);
default:
MOZ_CRASH("Gonk screen must always have a known rotation");
}
}
ScreenConfiguration
nsScreenGonk::GetConfiguration()
{
ScreenOrientation orientation = ComputeOrientation(mScreenRotation,
mNaturalBounds.Size());
// NB: perpetuating colorDepth == pixelDepth illusion here, for
// consistency.
return ScreenConfiguration(mVirtualBounds, orientation,
mColorDepth, mColorDepth);
}
void
nsScreenGonk::RegisterWindow(nsWindow* aWindow)
{
mTopWindows.AppendElement(aWindow);
}
void
nsScreenGonk::UnregisterWindow(nsWindow* aWindow)
{
mTopWindows.RemoveElement(aWindow);
}
void
nsScreenGonk::BringToTop(nsWindow* aWindow)
{
mTopWindows.RemoveElement(aWindow);
mTopWindows.InsertElementAt(0, aWindow);
}
NS_IMPL_ISUPPORTS(nsScreenManagerGonk, nsIScreenManager)
nsScreenManagerGonk::nsScreenManagerGonk()
: mInitialized(false)
{
}
nsScreenManagerGonk::~nsScreenManagerGonk()
{
}
/* static */ already_AddRefed<nsScreenManagerGonk>
nsScreenManagerGonk::GetInstance()
{
nsCOMPtr<nsIScreenManager> manager;
manager = do_GetService("@mozilla.org/gfx/screenmanager;1");
MOZ_ASSERT(manager);
return already_AddRefed<nsScreenManagerGonk>(
static_cast<nsScreenManagerGonk*>(manager.forget().take()));
}
/* static */ already_AddRefed< nsScreenGonk>
nsScreenManagerGonk::GetPrimaryScreen()
{
nsRefPtr<nsScreenManagerGonk> manager = nsScreenManagerGonk::GetInstance();
nsCOMPtr<nsIScreen> screen;
manager->GetPrimaryScreen(getter_AddRefs(screen));
MOZ_ASSERT(screen);
return already_AddRefed<nsScreenGonk>(
static_cast<nsScreenGonk*>(screen.forget().take()));
}
void
nsScreenManagerGonk::Initialize()
{
if (mInitialized) {
return;
}
mScreenOnEvent = new ScreenOnOffEvent(true);
mScreenOffEvent = new ScreenOnOffEvent(false);
GetGonkDisplay()->OnEnabled(displayEnabledCallback);
AddScreen(PRIMARY_SCREEN_TYPE);
nsAppShell::NotifyScreenInitialized();
mInitialized = true;
}
void
nsScreenManagerGonk::DisplayEnabled(bool aEnabled)
{
if (gfxPrefs::HardwareVsyncEnabled()) {
VsyncControl(aEnabled);
}
NS_DispatchToMainThread(aEnabled ? mScreenOnEvent : mScreenOffEvent);
}
NS_IMETHODIMP
nsScreenManagerGonk::GetPrimaryScreen(nsIScreen **outScreen)
{
NS_IF_ADDREF(*outScreen = mScreens[0].get());
return NS_OK;
}
NS_IMETHODIMP
nsScreenManagerGonk::ScreenForId(uint32_t aId,
nsIScreen **outScreen)
{
for (size_t i = 0; i < mScreens.Length(); i++) {
if (mScreens[i]->GetId() == aId) {
NS_IF_ADDREF(*outScreen = mScreens[i].get());
return NS_OK;
}
}
*outScreen = nullptr;
return NS_OK;
}
NS_IMETHODIMP
nsScreenManagerGonk::ScreenForRect(int32_t inLeft,
int32_t inTop,
int32_t inWidth,
int32_t inHeight,
nsIScreen **outScreen)
{
// Since all screens have independent coordinate system, we could
// only return the primary screen no matter what rect is given.
return GetPrimaryScreen(outScreen);
}
NS_IMETHODIMP
nsScreenManagerGonk::ScreenForNativeWidget(void *aWidget, nsIScreen **outScreen)
{
for (size_t i = 0; i < mScreens.Length(); i++) {
if (aWidget == mScreens[i]->GetNativeWindow()) {
NS_IF_ADDREF(*outScreen = mScreens[i].get());
return NS_OK;
}
}
*outScreen = nullptr;
return NS_OK;
}
NS_IMETHODIMP
nsScreenManagerGonk::GetNumberOfScreens(uint32_t *aNumberOfScreens)
{
*aNumberOfScreens = mScreens.Length();
return NS_OK;
}
NS_IMETHODIMP
nsScreenManagerGonk::GetSystemDefaultScale(float *aDefaultScale)
{
*aDefaultScale = 1.0f;
return NS_OK;
}
void
nsScreenManagerGonk::VsyncControl(bool aEnabled)
{
MOZ_ASSERT(gfxPrefs::HardwareVsyncEnabled());
if (!NS_IsMainThread()) {
NS_DispatchToMainThread(
NS_NewRunnableMethodWithArgs<bool>(this,
&nsScreenManagerGonk::VsyncControl,
aEnabled));
return;
}
MOZ_ASSERT(NS_IsMainThread());
VsyncSource::Display &display = gfxPlatform::GetPlatform()->GetHardwareVsync()->GetGlobalDisplay();
if (aEnabled) {
display.EnableVsync();
} else {
display.DisableVsync();
}
}
uint32_t
nsScreenManagerGonk::GetIdFromType(uint32_t aDisplayType)
{
// This is the only place where we make the assumption that
// display type is equivalent to screen id.
// Bug 1138287 will address the conversion from type to id.
return aDisplayType;
}
void
nsScreenManagerGonk::AddScreen(uint32_t aDisplayType)
{
// We currently only support adding primary screen.
MOZ_ASSERT(PRIMARY_SCREEN_TYPE == aDisplayType);
uint32_t id = GetIdFromType(aDisplayType);
ANativeWindow* win = GetGonkDisplay()->GetNativeWindow();
nsScreenGonk* screen = new nsScreenGonk(id, win);
mScreens.AppendElement(screen);
}
void
nsScreenManagerGonk::RemoveScreen(uint32_t aDisplayType)
{
uint32_t screenId = GetIdFromType(aDisplayType);
for (size_t i = 0; i < mScreens.Length(); i++) {
if (mScreens[i]->GetId() == screenId) {
mScreens.RemoveElementAt(i);
break;
}
}
}
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