TileHost
TiledLayerBufferComposite::ValidateTile(TileHost aTile,
const nsIntPoint& aTileOrigin,
const nsIntRegion& aDirtyRect)
{
if (aTile.IsPlaceholderTile()) {
NS_WARNING("Placeholder tile encountered in painted region");
return aTile;
}
#ifdef GFX_TILEDLAYER_PREF_WARNINGS
printf_stderr("Upload tile %i, %i\n", aTileOrigin.x, aTileOrigin.y);
long start = PR_IntervalNow();
#endif
MOZ_ASSERT(aTile.mTextureHost->GetFlags() & TextureFlags::IMMEDIATE_UPLOAD);
#ifdef MOZ_GFX_OPTIMIZE_MOBILE
MOZ_ASSERT(!aTile.mTextureHostOnWhite);
// We possibly upload the entire texture contents here. This is a purposeful
// decision, as sub-image upload can often be slow and/or unreliable, but
// we may want to reevaluate this in the future.
// For !HasInternalBuffer() textures, this is likely a no-op.
aTile.mTextureHost->Updated(nullptr);
#else
nsIntRegion tileUpdated = aDirtyRect.MovedBy(-aTileOrigin);
aTile.mTextureHost->Updated(&tileUpdated);
if (aTile.mTextureHostOnWhite) {
aTile.mTextureHostOnWhite->Updated(&tileUpdated);
}
#endif
#ifdef GFX_TILEDLAYER_PREF_WARNINGS
if (PR_IntervalNow() - start > 1) {
printf_stderr("Tile Time to upload %i\n", PR_IntervalNow() - start);
}
#endif
return aTile;
}
void ClientSingleTiledLayerBuffer::PaintThebes(
const nsIntRegion& aNewValidRegion, const nsIntRegion& aPaintRegion,
const nsIntRegion& aDirtyRegion,
LayerManager::DrawPaintedLayerCallback aCallback, void* aCallbackData,
TilePaintFlags aFlags) {
mWasLastPaintProgressive = !!(aFlags & TilePaintFlags::Progressive);
bool asyncPaint = !!(aFlags & TilePaintFlags::Async);
// Compare layer valid region size to current backbuffer size, discard if not
// matching.
gfx::IntSize size = aNewValidRegion.GetBounds().Size();
gfx::IntPoint origin = aNewValidRegion.GetBounds().TopLeft();
nsIntRegion paintRegion = aPaintRegion;
RefPtr<TextureClient> discardedFrontBuffer = nullptr;
RefPtr<TextureClient> discardedFrontBufferOnWhite = nullptr;
nsIntRegion discardedValidRegion;
if (mSize != size || mTilingOrigin != origin) {
discardedFrontBuffer = mTile.mFrontBuffer;
discardedFrontBufferOnWhite = mTile.mFrontBufferOnWhite;
discardedValidRegion = mValidRegion;
TILING_LOG(
"TILING %p: Single-tile valid region changed. Discarding buffers.\n",
&mPaintedLayer);
ResetPaintedAndValidState();
mSize = size;
mTilingOrigin = origin;
paintRegion = aNewValidRegion;
}
SurfaceMode mode;
gfxContentType content = GetContentType(&mode);
mFormat = gfxPlatform::GetPlatform()->OptimalFormatForContent(content);
if (mTile.IsPlaceholderTile()) {
mTile.SetTextureAllocator(this);
}
if (mManager->AsShadowForwarder()->SupportsTextureDirectMapping()) {
AutoTArray<uint64_t, 2> syncTextureSerials;
mTile.GetSyncTextureSerials(mode, syncTextureSerials);
if (syncTextureSerials.Length() > 0) {
mManager->AsShadowForwarder()->SyncTextures(syncTextureSerials);
}
}
// The dirty region relative to the top-left of the tile.
nsIntRegion tileVisibleRegion = aNewValidRegion.MovedBy(-mTilingOrigin);
nsIntRegion tileDirtyRegion = paintRegion.MovedBy(-mTilingOrigin);
Maybe<AcquiredBackBuffer> backBuffer =
mTile.AcquireBackBuffer(mCompositableClient, tileDirtyRegion,
tileVisibleRegion, content, mode, aFlags);
if (!backBuffer) {
return;
}
// Mark the area we need to paint in the back buffer as invalid in the
// front buffer as they will become out of sync.
mTile.mInvalidFront.OrWith(tileDirtyRegion);
// Add backbuffer's invalid region to the dirty region to be painted.
// This will be empty if we were able to copy from the front in to the back.
nsIntRegion tileInvalidRegion = mTile.mInvalidBack;
tileInvalidRegion.AndWith(tileVisibleRegion);
paintRegion.OrWith(tileInvalidRegion.MovedBy(mTilingOrigin));
tileDirtyRegion.OrWith(tileInvalidRegion);
// Mark the region we will be painting and the region we copied from the front
// buffer as needing to be uploaded to the compositor
mTile.mUpdateRect =
tileDirtyRegion.GetBounds().Union(backBuffer->mUpdatedRect);
// If the old frontbuffer was discarded then attempt to copy what we
// can from it to the new backbuffer.
if (discardedFrontBuffer) {
nsIntRegion copyableRegion;
copyableRegion.And(aNewValidRegion, discardedValidRegion);
copyableRegion.SubOut(aDirtyRegion);
OpenMode readMode =
asyncPaint ? OpenMode::OPEN_READ_ASYNC : OpenMode::OPEN_READ;
DualTextureClientAutoLock discardedBuffer(
discardedFrontBuffer, discardedFrontBufferOnWhite, readMode);
if (discardedBuffer.Succeeded()) {
RefPtr<gfx::SourceSurface> discardedSurface = discardedBuffer->Snapshot();
for (auto iter = copyableRegion.RectIter(); !iter.Done(); iter.Next()) {
const gfx::IntRect src =
iter.Get() - discardedValidRegion.GetBounds().TopLeft();
const gfx::IntPoint dest = iter.Get().TopLeft() - mTilingOrigin;
backBuffer->mTarget->CopySurface(discardedSurface, src, dest);
}
TILING_LOG("TILING %p: Region copied from discarded frontbuffer %s\n",
&mPaintedLayer, Stringify(copyableRegion).c_str());
// We don't need to repaint valid content that was just copied.
paintRegion.SubOut(copyableRegion);
copyableRegion.MoveBy(-mTilingOrigin);
tileDirtyRegion.SubOut(copyableRegion);
} else {
gfxWarning() << "[Tiling:Client] Failed to aquire the discarded front "
"buffer's draw target";
}
}
if (mode != SurfaceMode::SURFACE_OPAQUE) {
for (auto iter = tileDirtyRegion.RectIter(); !iter.Done(); iter.Next()) {
const gfx::Rect drawRect(iter.Get().X(), iter.Get().Y(),
iter.Get().Width(), iter.Get().Height());
backBuffer->mTarget->ClearRect(drawRect);
}
}
// Paint into the target
{
RefPtr<gfxContext> ctx = gfxContext::CreateOrNull(backBuffer->mTarget);
if (!ctx) {
gfxDevCrash(gfx::LogReason::InvalidContext)
<< "SingleTiledContextClient context problem "
<< gfx::hexa(backBuffer->mTarget);
return;
}
ctx->SetMatrix(
ctx->CurrentMatrix().PreTranslate(-mTilingOrigin.x, -mTilingOrigin.y));
aCallback(&mPaintedLayer, ctx, paintRegion, paintRegion,
DrawRegionClip::DRAW, nsIntRegion(), aCallbackData);
}
if (asyncPaint) {
if (!backBuffer->mCapture->IsEmpty()) {
UniquePtr<PaintTask> task(new PaintTask());
task->mCapture = backBuffer->mCapture;
task->mTarget = backBuffer->mBackBuffer;
task->mClients = std::move(backBuffer->mTextureClients);
if (discardedFrontBuffer) {
task->mClients.AppendElement(discardedFrontBuffer);
}
if (discardedFrontBufferOnWhite) {
task->mClients.AppendElement(discardedFrontBufferOnWhite);
}
// The target is an alias for the capture, and the paint thread expects
// to be the only one with a reference to the capture
backBuffer->mTarget = nullptr;
backBuffer->mCapture = nullptr;
PaintThread::Get()->QueuePaintTask(std::move(task));
mManager->SetQueuedAsyncPaints();
}
} else {
MOZ_ASSERT(backBuffer->mTarget == backBuffer->mBackBuffer);
MOZ_ASSERT(!backBuffer->mCapture);
}
// The new buffer is now validated, remove the dirty region from it.
mTile.mInvalidBack.SubOut(tileDirtyRegion);
backBuffer = Nothing();
mTile.Flip();
UnlockTile(mTile);
mValidRegion = aNewValidRegion;
mLastPaintSurfaceMode = mode;
mLastPaintContentType = content;
}
TileClient
ClientTiledLayerBuffer::ValidateTile(TileClient aTile,
const nsIntPoint& aTileOrigin,
const nsIntRegion& aDirtyRegion)
{
PROFILER_LABEL("ClientTiledLayerBuffer", "ValidateTile");
#ifdef GFX_TILEDLAYER_PREF_WARNINGS
if (aDirtyRegion.IsComplex()) {
printf_stderr("Complex region\n");
}
#endif
if (aTile.IsPlaceholderTile()) {
aTile.SetLayerManager(mManager);
}
// Discard our front and backbuffers if our contents changed. In this case
// the calling code will already have taken care of invalidating the entire
// layer.
if (HasFormatChanged()) {
aTile.DiscardBackBuffer();
aTile.DiscardFrontBuffer();
}
bool createdTextureClient = false;
nsIntRegion offsetDirtyRegion = aDirtyRegion.MovedBy(-aTileOrigin);
bool usingSinglePaintBuffer = !!mSinglePaintDrawTarget;
RefPtr<TextureClient> backBuffer =
aTile.GetBackBuffer(offsetDirtyRegion,
mManager->GetTexturePool(gfxPlatform::GetPlatform()->Optimal2DFormatForContent(GetContentType())),
&createdTextureClient, !usingSinglePaintBuffer);
if (!backBuffer->Lock(OPEN_READ_WRITE)) {
NS_WARNING("Failed to lock tile TextureClient for updating.");
aTile.DiscardFrontBuffer();
return aTile;
}
// We must not keep a reference to the DrawTarget after it has been unlocked,
// make sure these are null'd before unlocking as destruction of the context
// may cause the target to be flushed.
RefPtr<DrawTarget> drawTarget = backBuffer->AsTextureClientDrawTarget()->GetAsDrawTarget();
drawTarget->SetTransform(Matrix());
RefPtr<gfxContext> ctxt = new gfxContext(drawTarget);
if (usingSinglePaintBuffer) {
// XXX Perhaps we should just copy the bounding rectangle here?
RefPtr<gfx::SourceSurface> source = mSinglePaintDrawTarget->Snapshot();
nsIntRegionRectIterator it(aDirtyRegion);
for (const nsIntRect* dirtyRect = it.Next(); dirtyRect != nullptr; dirtyRect = it.Next()) {
#ifdef GFX_TILEDLAYER_PREF_WARNINGS
printf_stderr(" break into subdirtyRect %i, %i, %i, %i\n",
dirtyRect->x, dirtyRect->y, dirtyRect->width, dirtyRect->height);
#endif
gfx::Rect drawRect(dirtyRect->x - aTileOrigin.x,
dirtyRect->y - aTileOrigin.y,
dirtyRect->width,
dirtyRect->height);
drawRect.Scale(mResolution);
gfx::IntRect copyRect(NS_roundf((dirtyRect->x - mSinglePaintBufferOffset.x) * mResolution),
NS_roundf((dirtyRect->y - mSinglePaintBufferOffset.y) * mResolution),
drawRect.width,
drawRect.height);
gfx::IntPoint copyTarget(NS_roundf(drawRect.x), NS_roundf(drawRect.y));
drawTarget->CopySurface(source, copyRect, copyTarget);
// Mark the newly updated area as invalid in the front buffer
aTile.mInvalidFront.Or(aTile.mInvalidFront, nsIntRect(copyTarget.x, copyTarget.y, copyRect.width, copyRect.height));
}
// The new buffer is now validated, remove the dirty region from it.
aTile.mInvalidBack.Sub(nsIntRect(0, 0, TILEDLAYERBUFFER_TILE_SIZE, TILEDLAYERBUFFER_TILE_SIZE),
offsetDirtyRegion);
} else {
// Area of the full tile...
nsIntRegion tileRegion = nsIntRect(aTileOrigin.x, aTileOrigin.y, TILEDLAYERBUFFER_TILE_SIZE, TILEDLAYERBUFFER_TILE_SIZE);
// Intersect this area with the portion that's dirty.
tileRegion = tileRegion.Intersect(aDirtyRegion);
// Move invalid areas into layer space.
aTile.mInvalidFront.MoveBy(aTileOrigin);
aTile.mInvalidBack.MoveBy(aTileOrigin);
// Add the area that's going to be redrawn to the invalid area of the
// front region.
aTile.mInvalidFront.Or(aTile.mInvalidFront, tileRegion);
// Add invalid areas of the backbuffer to the area to redraw.
tileRegion.Or(tileRegion, aTile.mInvalidBack);
// Move invalid areas back into tile space.
aTile.mInvalidFront.MoveBy(-aTileOrigin);
// This will be validated now.
aTile.mInvalidBack.SetEmpty();
nsIntRect bounds = tileRegion.GetBounds();
bounds.ScaleRoundOut(mResolution, mResolution);
bounds.MoveBy(-aTileOrigin);
if (GetContentType() != gfxContentType::COLOR) {
drawTarget->ClearRect(Rect(bounds.x, bounds.y, bounds.width, bounds.height));
}
ctxt->NewPath();
ctxt->Clip(gfxRect(bounds.x, bounds.y, bounds.width, bounds.height));
ctxt->Scale(mResolution, mResolution);
ctxt->Translate(gfxPoint(-aTileOrigin.x, -aTileOrigin.y));
mCallback(mThebesLayer, ctxt,
tileRegion.GetBounds(),
DrawRegionClip::CLIP_NONE,
nsIntRegion(), mCallbackData);
}
#ifdef GFX_TILEDLAYER_DEBUG_OVERLAY
DrawDebugOverlay(drawTarget, aTileOrigin.x * mResolution,
aTileOrigin.y * mResolution, GetTileLength(), GetTileLength());
#endif
ctxt = nullptr;
drawTarget = nullptr;
backBuffer->Unlock();
aTile.Flip();
if (createdTextureClient) {
if (!mCompositableClient->AddTextureClient(backBuffer)) {
NS_WARNING("Failed to add tile TextureClient.");
aTile.DiscardFrontBuffer();
aTile.DiscardBackBuffer();
return aTile;
}
}
// Note, we don't call UpdatedTexture. The Updated function is called manually
// by the TiledContentHost before composition.
if (backBuffer->HasInternalBuffer()) {
// If our new buffer has an internal buffer, we don't want to keep another
// TextureClient around unnecessarily, so discard the back-buffer.
aTile.DiscardBackBuffer();
}
return aTile;
}