void
nsShmImage::Put(Display* aDisplay, Drawable aWindow,
const LayoutDeviceIntRegion& aRegion)
{
GC gc = XCreateGC(aDisplay, aWindow, 0, nullptr);
LayoutDeviceIntRegion bounded;
bounded.And(aRegion,
LayoutDeviceIntRect(0, 0, mImage->width, mImage->height));
LayoutDeviceIntRegion::RectIterator iter(bounded);
for (const LayoutDeviceIntRect *r = iter.Next(); r; r = iter.Next()) {
XShmPutImage(aDisplay, aWindow, gc, mImage,
r->x, r->y,
r->x, r->y,
r->width, r->height,
False);
}
XFreeGC(aDisplay, gc);
// FIXME/bug 597336: we need to ensure that the shm image isn't
// scribbled over before all its pending XShmPutImage()s complete.
// However, XSync() is an unnecessarily heavyweight
// synchronization mechanism; other options are possible. If this
// XSync is shown to hurt responsiveness, we need to explore the
// other options.
XSync(aDisplay, False);
}
nsresult
PuppetWidget::Paint()
{
MOZ_ASSERT(!mDirtyRegion.IsEmpty(), "paint event logic messed up");
if (!GetCurrentWidgetListener())
return NS_OK;
LayoutDeviceIntRegion region = mDirtyRegion;
// reset repaint tracking
mDirtyRegion.SetEmpty();
mPaintTask.Revoke();
RefPtr<PuppetWidget> strongThis(this);
GetCurrentWidgetListener()->WillPaintWindow(this);
if (GetCurrentWidgetListener()) {
#ifdef DEBUG
debug_DumpPaintEvent(stderr, this, region.ToUnknownRegion(),
"PuppetWidget", 0);
#endif
if (mozilla::layers::LayersBackend::LAYERS_CLIENT == mLayerManager->GetBackendType()) {
// Do nothing, the compositor will handle drawing
if (mTabChild) {
mTabChild->NotifyPainted();
}
} else if (mozilla::layers::LayersBackend::LAYERS_BASIC == mLayerManager->GetBackendType()) {
RefPtr<gfxContext> ctx = gfxContext::CreateOrNull(mDrawTarget);
if (!ctx) {
gfxDevCrash(LogReason::InvalidContext) << "PuppetWidget context problem " << gfx::hexa(mDrawTarget);
return NS_ERROR_FAILURE;
}
ctx->Rectangle(gfxRect(0,0,0,0));
ctx->Clip();
AutoLayerManagerSetup setupLayerManager(this, ctx,
BufferMode::BUFFER_NONE);
GetCurrentWidgetListener()->PaintWindow(this, region);
if (mTabChild) {
mTabChild->NotifyPainted();
}
}
}
if (GetCurrentWidgetListener()) {
GetCurrentWidgetListener()->DidPaintWindow();
}
return NS_OK;
}
static void CalculatePluginClip(const LayoutDeviceIntRect& aBounds,
const nsTArray<LayoutDeviceIntRect>& aPluginClipRects,
const LayoutDeviceIntPoint& aContentOffset,
const LayoutDeviceIntRegion& aParentLayerVisibleRegion,
nsTArray<LayoutDeviceIntRect>& aResult,
LayoutDeviceIntRect& aVisibleBounds,
bool& aPluginIsVisible)
{
aPluginIsVisible = true;
LayoutDeviceIntRegion contentVisibleRegion;
// aPluginClipRects (plugin widget origin) - contains *visible* rects
for (uint32_t idx = 0; idx < aPluginClipRects.Length(); idx++) {
LayoutDeviceIntRect rect = aPluginClipRects[idx];
// shift to content origin
rect.MoveBy(aBounds.x, aBounds.y);
// accumulate visible rects
contentVisibleRegion.OrWith(rect);
}
// apply layers clip (window origin)
LayoutDeviceIntRegion region = aParentLayerVisibleRegion;
region.MoveBy(-aContentOffset.x, -aContentOffset.y);
contentVisibleRegion.AndWith(region);
if (contentVisibleRegion.IsEmpty()) {
aPluginIsVisible = false;
return;
}
// shift to plugin widget origin
contentVisibleRegion.MoveBy(-aBounds.x, -aBounds.y);
for (auto iter = contentVisibleRegion.RectIter(); !iter.Done(); iter.Next()) {
const LayoutDeviceIntRect& rect = iter.Get();
aResult.AppendElement(rect);
aVisibleBounds.UnionRect(aVisibleBounds, rect);
}
}
static void
InvalidateRegion(nsIWidget* aWidget, const LayoutDeviceIntRegion& aRegion)
{
for (auto iter = aRegion.RectIter(); !iter.Done(); iter.Next()) {
aWidget->Invalidate(iter.Get());
}
}
nsresult
PuppetWidget::Paint()
{
MOZ_ASSERT(!mDirtyRegion.IsEmpty(), "paint event logic messed up");
if (!GetCurrentWidgetListener())
return NS_OK;
LayoutDeviceIntRegion region = mDirtyRegion;
// reset repaint tracking
mDirtyRegion.SetEmpty();
mPaintTask.Revoke();
GetCurrentWidgetListener()->WillPaintWindow(this);
if (GetCurrentWidgetListener()) {
#ifdef DEBUG
debug_DumpPaintEvent(stderr, this, region.ToUnknownRegion(),
nsAutoCString("PuppetWidget"), 0);
#endif
if (mozilla::layers::LayersBackend::LAYERS_CLIENT == mLayerManager->GetBackendType()) {
// Do nothing, the compositor will handle drawing
if (mTabChild) {
mTabChild->NotifyPainted();
}
} else {
RefPtr<gfxContext> ctx = new gfxContext(mDrawTarget);
ctx->Rectangle(gfxRect(0,0,0,0));
ctx->Clip();
AutoLayerManagerSetup setupLayerManager(this, ctx,
BufferMode::BUFFER_NONE);
GetCurrentWidgetListener()->PaintWindow(this, region);
if (mTabChild) {
mTabChild->NotifyPainted();
}
}
}
if (GetCurrentWidgetListener()) {
GetCurrentWidgetListener()->DidPaintWindow();
}
return NS_OK;
}
bool nsViewManager::PaintWindow(nsIWidget* aWidget,
LayoutDeviceIntRegion aRegion)
{
if (!aWidget || !mContext)
return false;
NS_ASSERTION(IsPaintingAllowed(),
"shouldn't be receiving paint events while painting is disallowed!");
// Get the view pointer here since NS_WILL_PAINT might have
// destroyed it during CallWillPaintOnObservers (bug 378273).
nsView* view = nsView::GetViewFor(aWidget);
if (view && !aRegion.IsEmpty()) {
Refresh(view, aRegion);
}
return true;
}
/**
aRegion is given in device coordinates!!
aContext may be null, in which case layers should be used for
rendering.
*/
void nsViewManager::Refresh(nsView* aView, const LayoutDeviceIntRegion& aRegion)
{
NS_ASSERTION(aView->GetViewManager() == this, "wrong view manager");
if (mPresShell && mPresShell->IsNeverPainting()) {
return;
}
// damageRegion is the damaged area, in twips, relative to the view origin
nsRegion damageRegion = aRegion.ToAppUnits(AppUnitsPerDevPixel());
// move region from widget coordinates into view coordinates
damageRegion.MoveBy(-aView->ViewToWidgetOffset());
if (damageRegion.IsEmpty()) {
#ifdef DEBUG_roc
nsRect viewRect = aView->GetDimensions();
nsRect damageRect = damageRegion.GetBounds();
printf_stderr("XXX Damage rectangle (%d,%d,%d,%d) does not intersect the widget's view (%d,%d,%d,%d)!\n",
damageRect.x, damageRect.y, damageRect.width, damageRect.height,
viewRect.x, viewRect.y, viewRect.width, viewRect.height);
#endif
return;
}
nsIWidget *widget = aView->GetWidget();
if (!widget) {
return;
}
NS_ASSERTION(!IsPainting(), "recursive painting not permitted");
if (IsPainting()) {
RootViewManager()->mRecursiveRefreshPending = true;
return;
}
{
nsAutoScriptBlocker scriptBlocker;
SetPainting(true);
NS_ASSERTION(GetDisplayRootFor(aView) == aView,
"Widgets that we paint must all be display roots");
if (mPresShell) {
#ifdef MOZ_DUMP_PAINTING
if (nsLayoutUtils::InvalidationDebuggingIsEnabled()) {
printf_stderr("--COMPOSITE-- %p\n", mPresShell);
}
#endif
uint32_t paintFlags = nsIPresShell::PAINT_COMPOSITE;
LayerManager *manager = widget->GetLayerManager();
if (!manager->NeedsWidgetInvalidation()) {
manager->FlushRendering();
} else {
mPresShell->Paint(aView, damageRegion,
paintFlags);
}
#ifdef MOZ_DUMP_PAINTING
if (nsLayoutUtils::InvalidationDebuggingIsEnabled()) {
printf_stderr("--ENDCOMPOSITE--\n");
}
#endif
mozilla::StartupTimeline::RecordOnce(mozilla::StartupTimeline::FIRST_PAINT);
}
SetPainting(false);
}
if (RootViewManager()->mRecursiveRefreshPending) {
RootViewManager()->mRecursiveRefreshPending = false;
InvalidateAllViews();
}
}
void
BasicCompositor::BeginFrame(const nsIntRegion& aInvalidRegion,
const gfx::Rect *aClipRectIn,
const gfx::Rect& aRenderBounds,
gfx::Rect *aClipRectOut /* = nullptr */,
gfx::Rect *aRenderBoundsOut /* = nullptr */)
{
LayoutDeviceIntRect intRect(LayoutDeviceIntPoint(), mWidget->GetClientSize());
Rect rect = Rect(0, 0, intRect.width, intRect.height);
LayoutDeviceIntRegion invalidRegionSafe;
if (mDidExternalComposition) {
// We do not know rendered region during external composition, just redraw
// whole widget.
invalidRegionSafe = intRect;
mDidExternalComposition = false;
} else {
// Sometimes the invalid region is larger than we want to draw.
invalidRegionSafe.And(
LayoutDeviceIntRegion::FromUnknownRegion(aInvalidRegion), intRect);
}
mInvalidRegion = invalidRegionSafe;
mInvalidRect = mInvalidRegion.GetBounds();
if (aRenderBoundsOut) {
*aRenderBoundsOut = Rect();
}
BufferMode bufferMode = BufferMode::BUFFERED;
if (mTarget) {
// If we have a copy target, then we don't have a widget-provided mDrawTarget (currently). Use a dummy
// placeholder so that CreateRenderTarget() works.
mDrawTarget = gfxPlatform::GetPlatform()->ScreenReferenceDrawTarget();
} else {
// StartRemoteDrawingInRegion can mutate mInvalidRegion.
mDrawTarget = mWidget->StartRemoteDrawingInRegion(mInvalidRegion, &bufferMode);
if (!mDrawTarget) {
return;
}
mInvalidRect = mInvalidRegion.GetBounds();
if (mInvalidRect.IsEmpty()) {
mWidget->EndRemoteDrawingInRegion(mDrawTarget, mInvalidRegion);
return;
}
}
if (!mDrawTarget || mInvalidRect.IsEmpty()) {
return;
}
// Setup an intermediate render target to buffer all compositing. We will
// copy this into mDrawTarget (the widget), and/or mTarget in EndFrame()
RefPtr<CompositingRenderTarget> target =
CreateRenderTargetForWindow(mInvalidRect.ToUnknownRect(), INIT_MODE_CLEAR, bufferMode);
if (!target) {
if (!mTarget) {
mWidget->EndRemoteDrawingInRegion(mDrawTarget, mInvalidRegion);
}
return;
}
SetRenderTarget(target);
// We only allocate a surface sized to the invalidated region, so we need to
// translate future coordinates.
mRenderTarget->mDrawTarget->SetTransform(Matrix::Translation(-mRenderTarget->GetOrigin()));
gfxUtils::ClipToRegion(mRenderTarget->mDrawTarget,
mInvalidRegion.ToUnknownRegion());
if (aRenderBoundsOut) {
*aRenderBoundsOut = rect;
}
if (aClipRectIn) {
mRenderTarget->mDrawTarget->PushClipRect(*aClipRectIn);
} else {
mRenderTarget->mDrawTarget->PushClipRect(rect);
if (aClipRectOut) {
*aClipRectOut = rect;
}
}
}
