зеркало из https://github.com/mozilla/gecko-dev.git
1606 строки
57 KiB
C++
1606 строки
57 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/layers/TiledContentClient.h"
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#include <math.h> // for ceil, ceilf, floor
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#include <algorithm>
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#include "ClientTiledPaintedLayer.h" // for ClientTiledPaintedLayer
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#include "GeckoProfiler.h" // for PROFILER_LABEL
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#include "ClientLayerManager.h" // for ClientLayerManager
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#include "gfxContext.h" // for gfxContext, etc
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#include "gfxPlatform.h" // for gfxPlatform
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#include "gfxPrefs.h" // for gfxPrefs
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#include "gfxRect.h" // for gfxRect
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#include "mozilla/MathAlgorithms.h" // for Abs
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#include "mozilla/gfx/Point.h" // for IntSize
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#include "mozilla/gfx/Rect.h" // for Rect
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#include "mozilla/gfx/Tools.h" // for BytesPerPixel
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#include "mozilla/layers/CompositableForwarder.h"
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#include "mozilla/layers/CompositorChild.h" // for CompositorChild
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#include "mozilla/layers/LayerMetricsWrapper.h"
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#include "mozilla/layers/ShadowLayers.h" // for ShadowLayerForwarder
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#include "TextureClientPool.h"
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#include "nsDebug.h" // for NS_ASSERTION
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#include "nsISupportsImpl.h" // for gfxContext::AddRef, etc
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#include "nsSize.h" // for nsIntSize
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#include "gfxReusableSharedImageSurfaceWrapper.h"
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#include "nsExpirationTracker.h" // for nsExpirationTracker
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#include "nsMathUtils.h" // for NS_lroundf
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#include "gfx2DGlue.h"
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#include "LayersLogging.h"
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#include "UnitTransforms.h" // for TransformTo
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#include "mozilla/UniquePtr.h"
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// This is the minimum area that we deem reasonable to copy from the front buffer to the
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// back buffer on tile updates. If the valid region is smaller than this, we just
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// redraw it and save on the copy (and requisite surface-locking involved).
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#define MINIMUM_TILE_COPY_AREA (1.f/16.f)
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#ifdef GFX_TILEDLAYER_DEBUG_OVERLAY
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#include "cairo.h"
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#include <sstream>
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using mozilla::layers::Layer;
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static void DrawDebugOverlay(mozilla::gfx::DrawTarget* dt, int x, int y, int width, int height)
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{
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gfxContext c(dt);
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// Draw border
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c.NewPath();
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c.SetDeviceColor(gfxRGBA(0.0, 0.0, 0.0, 1.0));
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c.Rectangle(gfxRect(0, 0, width, height));
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c.Stroke();
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// Build tile description
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std::stringstream ss;
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ss << x << ", " << y;
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// Draw text using cairo toy text API
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cairo_t* cr = c.GetCairo();
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cairo_set_font_size(cr, 25);
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cairo_text_extents_t extents;
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cairo_text_extents(cr, ss.str().c_str(), &extents);
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int textWidth = extents.width + 6;
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c.NewPath();
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c.SetDeviceColor(gfxRGBA(0.0, 0.0, 0.0, 1.0));
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c.Rectangle(gfxRect(gfxPoint(2,2),gfxSize(textWidth, 30)));
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c.Fill();
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c.NewPath();
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c.SetDeviceColor(gfxRGBA(1.0, 0.0, 0.0, 1.0));
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c.Rectangle(gfxRect(gfxPoint(2,2),gfxSize(textWidth, 30)));
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c.Stroke();
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c.NewPath();
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cairo_move_to(cr, 4, 28);
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cairo_show_text(cr, ss.str().c_str());
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}
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#endif
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namespace mozilla {
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using namespace gfx;
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namespace layers {
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TiledContentClient::TiledContentClient(ClientTiledPaintedLayer* aPaintedLayer,
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ClientLayerManager* aManager)
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: CompositableClient(aManager->AsShadowForwarder())
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{
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MOZ_COUNT_CTOR(TiledContentClient);
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mTiledBuffer = ClientTiledLayerBuffer(aPaintedLayer, this, aManager,
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&mSharedFrameMetricsHelper);
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mLowPrecisionTiledBuffer = ClientTiledLayerBuffer(aPaintedLayer, this, aManager,
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&mSharedFrameMetricsHelper);
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mLowPrecisionTiledBuffer.SetResolution(gfxPrefs::LowPrecisionResolution());
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}
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void
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TiledContentClient::ClearCachedResources()
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{
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CompositableClient::ClearCachedResources();
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mTiledBuffer.DiscardBuffers();
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mLowPrecisionTiledBuffer.DiscardBuffers();
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}
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void
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TiledContentClient::UseTiledLayerBuffer(TiledBufferType aType)
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{
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ClientTiledLayerBuffer* buffer = aType == LOW_PRECISION_TILED_BUFFER
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? &mLowPrecisionTiledBuffer
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: &mTiledBuffer;
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// Take a ReadLock on behalf of the TiledContentHost. This
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// reference will be adopted when the descriptor is opened in
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// TiledLayerBufferComposite.
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buffer->ReadLock();
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mForwarder->UseTiledLayerBuffer(this, buffer->GetSurfaceDescriptorTiles());
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buffer->ClearPaintedRegion();
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}
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SharedFrameMetricsHelper::SharedFrameMetricsHelper()
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: mLastProgressiveUpdateWasLowPrecision(false)
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, mProgressiveUpdateWasInDanger(false)
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{
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MOZ_COUNT_CTOR(SharedFrameMetricsHelper);
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}
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SharedFrameMetricsHelper::~SharedFrameMetricsHelper()
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{
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MOZ_COUNT_DTOR(SharedFrameMetricsHelper);
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}
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static inline bool
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FuzzyEquals(float a, float b) {
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return (fabsf(a - b) < 1e-6);
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}
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static ViewTransform
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ComputeViewTransform(const FrameMetrics& aContentMetrics, const FrameMetrics& aCompositorMetrics)
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{
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// This is basically the same code as AsyncPanZoomController::GetCurrentAsyncTransform
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// but with aContentMetrics used in place of mLastContentPaintMetrics, because they
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// should be equivalent, modulo race conditions while transactions are inflight.
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ParentLayerPoint translation = (aCompositorMetrics.GetScrollOffset() - aContentMetrics.GetScrollOffset())
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* aCompositorMetrics.GetZoom();
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return ViewTransform(aCompositorMetrics.GetAsyncZoom(), -translation);
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}
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bool
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SharedFrameMetricsHelper::UpdateFromCompositorFrameMetrics(
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const LayerMetricsWrapper& aLayer,
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bool aHasPendingNewThebesContent,
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bool aLowPrecision,
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ViewTransform& aViewTransform)
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{
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MOZ_ASSERT(aLayer);
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CompositorChild* compositor = nullptr;
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if (aLayer.Manager() &&
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aLayer.Manager()->AsClientLayerManager()) {
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compositor = aLayer.Manager()->AsClientLayerManager()->GetCompositorChild();
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}
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if (!compositor) {
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return false;
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}
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const FrameMetrics& contentMetrics = aLayer.Metrics();
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FrameMetrics compositorMetrics;
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if (!compositor->LookupCompositorFrameMetrics(contentMetrics.GetScrollId(),
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compositorMetrics)) {
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return false;
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}
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aViewTransform = ComputeViewTransform(contentMetrics, compositorMetrics);
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// Reset the checkerboard risk flag when switching to low precision
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// rendering.
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if (aLowPrecision && !mLastProgressiveUpdateWasLowPrecision) {
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// Skip low precision rendering until we're at risk of checkerboarding.
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if (!mProgressiveUpdateWasInDanger) {
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TILING_LOG("TILING: Aborting low-precision rendering because not at risk of checkerboarding\n");
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return true;
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}
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mProgressiveUpdateWasInDanger = false;
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}
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mLastProgressiveUpdateWasLowPrecision = aLowPrecision;
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// Always abort updates if the resolution has changed. There's no use
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// in drawing at the incorrect resolution.
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if (!FuzzyEquals(compositorMetrics.GetZoom().scale, contentMetrics.GetZoom().scale)) {
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TILING_LOG("TILING: Aborting because resolution changed from %f to %f\n",
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contentMetrics.GetZoom().scale, compositorMetrics.GetZoom().scale);
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return true;
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}
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// Never abort drawing if we can't be sure we've sent a more recent
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// display-port. If we abort updating when we shouldn't, we can end up
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// with blank regions on the screen and we open up the risk of entering
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// an endless updating cycle.
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if (fabsf(contentMetrics.GetScrollOffset().x - compositorMetrics.GetScrollOffset().x) <= 2 &&
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fabsf(contentMetrics.GetScrollOffset().y - compositorMetrics.GetScrollOffset().y) <= 2 &&
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fabsf(contentMetrics.GetDisplayPort().x - compositorMetrics.GetDisplayPort().x) <= 2 &&
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fabsf(contentMetrics.GetDisplayPort().y - compositorMetrics.GetDisplayPort().y) <= 2 &&
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fabsf(contentMetrics.GetDisplayPort().width - compositorMetrics.GetDisplayPort().width) <= 2 &&
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fabsf(contentMetrics.GetDisplayPort().height - compositorMetrics.GetDisplayPort().height) <= 2) {
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return false;
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}
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// When not a low precision pass and the page is in danger of checker boarding
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// abort update.
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if (!aLowPrecision && !mProgressiveUpdateWasInDanger) {
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bool scrollUpdatePending = contentMetrics.GetScrollOffsetUpdated() &&
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contentMetrics.GetScrollGeneration() != compositorMetrics.GetScrollGeneration();
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// If scrollUpdatePending is true, then that means the content-side
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// metrics has a new scroll offset that is going to be forced into the
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// compositor but it hasn't gotten there yet.
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// Even though right now comparing the metrics might indicate we're
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// about to checkerboard (and that's true), the checkerboarding will
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// disappear as soon as the new scroll offset update is processed
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// on the compositor side. To avoid leaving things in a low-precision
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// paint, we need to detect and handle this case (bug 1026756).
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if (!scrollUpdatePending && AboutToCheckerboard(contentMetrics, compositorMetrics)) {
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mProgressiveUpdateWasInDanger = true;
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return true;
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}
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}
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// Abort drawing stale low-precision content if there's a more recent
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// display-port in the pipeline.
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if (aLowPrecision && !aHasPendingNewThebesContent) {
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TILING_LOG("TILING: Aborting low-precision because of new pending content\n");
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return true;
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}
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return false;
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}
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bool
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SharedFrameMetricsHelper::AboutToCheckerboard(const FrameMetrics& aContentMetrics,
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const FrameMetrics& aCompositorMetrics)
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{
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// The size of the painted area is originally computed in layer pixels in layout, but then
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// converted to app units and then back to CSS pixels before being put in the FrameMetrics.
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// This process can introduce some rounding error, so we inflate the rect by one app unit
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// to account for that.
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CSSRect painted = (aContentMetrics.GetCriticalDisplayPort().IsEmpty()
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? aContentMetrics.GetDisplayPort()
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: aContentMetrics.GetCriticalDisplayPort())
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+ aContentMetrics.GetScrollOffset();
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painted.Inflate(CSSMargin::FromAppUnits(nsMargin(1, 1, 1, 1)));
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// Inflate the rect by the danger zone. See the description of the danger zone prefs
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// in AsyncPanZoomController.cpp for an explanation of this.
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CSSRect showing = CSSRect(aCompositorMetrics.GetScrollOffset(),
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aCompositorMetrics.CalculateBoundedCompositedSizeInCssPixels());
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showing.Inflate(LayerSize(gfxPrefs::APZDangerZoneX(), gfxPrefs::APZDangerZoneY())
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/ aCompositorMetrics.LayersPixelsPerCSSPixel());
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// Clamp both rects to the scrollable rect, because having either of those
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// exceed the scrollable rect doesn't make sense, and could lead to false
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// positives.
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painted = painted.Intersect(aContentMetrics.GetScrollableRect());
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showing = showing.Intersect(aContentMetrics.GetScrollableRect());
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if (!painted.Contains(showing)) {
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TILING_LOG("TILING: About to checkerboard; content %s\n", Stringify(aContentMetrics).c_str());
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TILING_LOG("TILING: About to checkerboard; painted %s\n", Stringify(painted).c_str());
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TILING_LOG("TILING: About to checkerboard; compositor %s\n", Stringify(aCompositorMetrics).c_str());
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TILING_LOG("TILING: About to checkerboard; showing %s\n", Stringify(showing).c_str());
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return true;
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}
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return false;
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}
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ClientTiledLayerBuffer::ClientTiledLayerBuffer(ClientTiledPaintedLayer* aPaintedLayer,
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CompositableClient* aCompositableClient,
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ClientLayerManager* aManager,
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SharedFrameMetricsHelper* aHelper)
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: mPaintedLayer(aPaintedLayer)
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, mCompositableClient(aCompositableClient)
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, mManager(aManager)
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, mLastPaintContentType(gfxContentType::COLOR)
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, mLastPaintSurfaceMode(SurfaceMode::SURFACE_OPAQUE)
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, mSharedFrameMetricsHelper(aHelper)
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{
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}
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bool
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ClientTiledLayerBuffer::HasFormatChanged() const
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{
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SurfaceMode mode;
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gfxContentType content = GetContentType(&mode);
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return content != mLastPaintContentType ||
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mode != mLastPaintSurfaceMode;
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}
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gfxContentType
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ClientTiledLayerBuffer::GetContentType(SurfaceMode* aMode) const
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{
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gfxContentType content =
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mPaintedLayer->CanUseOpaqueSurface() ? gfxContentType::COLOR :
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gfxContentType::COLOR_ALPHA;
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SurfaceMode mode = mPaintedLayer->GetSurfaceMode();
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if (mode == SurfaceMode::SURFACE_COMPONENT_ALPHA) {
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#if defined(MOZ_GFX_OPTIMIZE_MOBILE) || defined(MOZ_WIDGET_GONK)
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mode = SurfaceMode::SURFACE_SINGLE_CHANNEL_ALPHA;
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}
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#else
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if (!mPaintedLayer->GetParent() ||
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!mPaintedLayer->GetParent()->SupportsComponentAlphaChildren() ||
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!gfxPrefs::TiledDrawTargetEnabled()) {
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mode = SurfaceMode::SURFACE_SINGLE_CHANNEL_ALPHA;
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} else {
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content = gfxContentType::COLOR;
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}
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} else if (mode == SurfaceMode::SURFACE_OPAQUE) {
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if (mPaintedLayer->MayResample()) {
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mode = SurfaceMode::SURFACE_SINGLE_CHANNEL_ALPHA;
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content = gfxContentType::COLOR_ALPHA;
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}
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}
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#endif
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if (aMode) {
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*aMode = mode;
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}
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return content;
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}
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gfxMemorySharedReadLock::gfxMemorySharedReadLock()
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: mReadCount(1)
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{
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MOZ_COUNT_CTOR(gfxMemorySharedReadLock);
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}
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gfxMemorySharedReadLock::~gfxMemorySharedReadLock()
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{
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MOZ_ASSERT(mReadCount == 0);
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MOZ_COUNT_DTOR(gfxMemorySharedReadLock);
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}
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int32_t
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gfxMemorySharedReadLock::ReadLock()
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{
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NS_ASSERT_OWNINGTHREAD(gfxMemorySharedReadLock);
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return PR_ATOMIC_INCREMENT(&mReadCount);
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}
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int32_t
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gfxMemorySharedReadLock::ReadUnlock()
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{
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int32_t readCount = PR_ATOMIC_DECREMENT(&mReadCount);
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NS_ASSERTION(readCount >= 0, "ReadUnlock called without ReadLock.");
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return readCount;
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}
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int32_t
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gfxMemorySharedReadLock::GetReadCount()
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{
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NS_ASSERT_OWNINGTHREAD(gfxMemorySharedReadLock);
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return mReadCount;
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}
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gfxShmSharedReadLock::gfxShmSharedReadLock(ISurfaceAllocator* aAllocator)
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: mAllocator(aAllocator)
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, mAllocSuccess(false)
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{
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MOZ_COUNT_CTOR(gfxShmSharedReadLock);
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MOZ_ASSERT(mAllocator);
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if (mAllocator) {
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#define MOZ_ALIGN_WORD(x) (((x) + 3) & ~3)
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if (mAllocator->AllocShmemSection(MOZ_ALIGN_WORD(sizeof(ShmReadLockInfo)), &mShmemSection)) {
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ShmReadLockInfo* info = GetShmReadLockInfoPtr();
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info->readCount = 1;
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mAllocSuccess = true;
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}
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}
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}
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gfxShmSharedReadLock::~gfxShmSharedReadLock()
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{
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MOZ_COUNT_DTOR(gfxShmSharedReadLock);
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}
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int32_t
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gfxShmSharedReadLock::ReadLock() {
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NS_ASSERT_OWNINGTHREAD(gfxShmSharedReadLock);
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if (!mAllocSuccess) {
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return 0;
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}
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ShmReadLockInfo* info = GetShmReadLockInfoPtr();
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return PR_ATOMIC_INCREMENT(&info->readCount);
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}
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int32_t
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gfxShmSharedReadLock::ReadUnlock() {
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if (!mAllocSuccess) {
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return 0;
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}
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ShmReadLockInfo* info = GetShmReadLockInfoPtr();
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int32_t readCount = PR_ATOMIC_DECREMENT(&info->readCount);
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NS_ASSERTION(readCount >= 0, "ReadUnlock called without a ReadLock.");
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if (readCount <= 0) {
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mAllocator->FreeShmemSection(mShmemSection);
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}
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return readCount;
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}
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int32_t
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gfxShmSharedReadLock::GetReadCount() {
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NS_ASSERT_OWNINGTHREAD(gfxShmSharedReadLock);
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if (!mAllocSuccess) {
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return 0;
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}
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ShmReadLockInfo* info = GetShmReadLockInfoPtr();
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return info->readCount;
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}
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class TileExpiry MOZ_FINAL : public nsExpirationTracker<TileClient, 3>
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{
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public:
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TileExpiry() : nsExpirationTracker<TileClient, 3>(1000) {}
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static void AddTile(TileClient* aTile)
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{
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if (!sTileExpiry) {
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sTileExpiry = MakeUnique<TileExpiry>();
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}
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sTileExpiry->AddObject(aTile);
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}
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static void RemoveTile(TileClient* aTile)
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{
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MOZ_ASSERT(sTileExpiry);
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sTileExpiry->RemoveObject(aTile);
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}
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static void Shutdown() {
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sTileExpiry = nullptr;
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}
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private:
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virtual void NotifyExpired(TileClient* aTile) MOZ_OVERRIDE
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{
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aTile->DiscardBackBuffer();
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}
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static UniquePtr<TileExpiry> sTileExpiry;
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};
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UniquePtr<TileExpiry> TileExpiry::sTileExpiry;
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void ShutdownTileCache()
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{
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TileExpiry::Shutdown();
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}
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void
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TileClient::PrivateProtector::Set(TileClient * const aContainer, RefPtr<TextureClient> aNewValue)
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{
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if (mBuffer) {
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TileExpiry::RemoveTile(aContainer);
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}
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mBuffer = aNewValue;
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if (mBuffer) {
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TileExpiry::AddTile(aContainer);
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}
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}
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void
|
|
TileClient::PrivateProtector::Set(TileClient * const aContainer, TextureClient* aNewValue)
|
|
{
|
|
Set(aContainer, RefPtr<TextureClient>(aNewValue));
|
|
}
|
|
|
|
// Placeholder
|
|
TileClient::TileClient()
|
|
: mCompositableClient(nullptr)
|
|
{
|
|
}
|
|
|
|
TileClient::~TileClient()
|
|
{
|
|
if (mExpirationState.IsTracked()) {
|
|
MOZ_ASSERT(mBackBuffer);
|
|
TileExpiry::RemoveTile(this);
|
|
}
|
|
}
|
|
|
|
TileClient::TileClient(const TileClient& o)
|
|
{
|
|
mBackBuffer.Set(this, o.mBackBuffer);
|
|
mBackBufferOnWhite = o.mBackBufferOnWhite;
|
|
mFrontBuffer = o.mFrontBuffer;
|
|
mFrontBufferOnWhite = o.mFrontBufferOnWhite;
|
|
mBackLock = o.mBackLock;
|
|
mFrontLock = o.mFrontLock;
|
|
mCompositableClient = o.mCompositableClient;
|
|
#ifdef GFX_TILEDLAYER_DEBUG_OVERLAY
|
|
mLastUpdate = o.mLastUpdate;
|
|
#endif
|
|
mManager = o.mManager;
|
|
mInvalidFront = o.mInvalidFront;
|
|
mInvalidBack = o.mInvalidBack;
|
|
}
|
|
|
|
TileClient&
|
|
TileClient::operator=(const TileClient& o)
|
|
{
|
|
if (this == &o) return *this;
|
|
mBackBuffer.Set(this, o.mBackBuffer);
|
|
mBackBufferOnWhite = o.mBackBufferOnWhite;
|
|
mFrontBuffer = o.mFrontBuffer;
|
|
mFrontBufferOnWhite = o.mFrontBufferOnWhite;
|
|
mBackLock = o.mBackLock;
|
|
mFrontLock = o.mFrontLock;
|
|
mCompositableClient = o.mCompositableClient;
|
|
#ifdef GFX_TILEDLAYER_DEBUG_OVERLAY
|
|
mLastUpdate = o.mLastUpdate;
|
|
#endif
|
|
mManager = o.mManager;
|
|
mInvalidFront = o.mInvalidFront;
|
|
mInvalidBack = o.mInvalidBack;
|
|
return *this;
|
|
}
|
|
|
|
|
|
void
|
|
TileClient::Flip()
|
|
{
|
|
#if defined(MOZ_WIDGET_GONK) && ANDROID_VERSION >= 17
|
|
if (mFrontBuffer && mFrontBuffer->GetIPDLActor() &&
|
|
mCompositableClient && mCompositableClient->GetIPDLActor()) {
|
|
// remove old buffer from CompositableHost
|
|
RefPtr<AsyncTransactionTracker> tracker = new RemoveTextureFromCompositableTracker();
|
|
// Hold TextureClient until transaction complete.
|
|
tracker->SetTextureClient(mFrontBuffer);
|
|
mFrontBuffer->SetRemoveFromCompositableTracker(tracker);
|
|
// RemoveTextureFromCompositableAsync() expects CompositorChild's presence.
|
|
mManager->AsShadowForwarder()->RemoveTextureFromCompositableAsync(tracker,
|
|
mCompositableClient,
|
|
mFrontBuffer);
|
|
}
|
|
#endif
|
|
RefPtr<TextureClient> frontBuffer = mFrontBuffer;
|
|
RefPtr<TextureClient> frontBufferOnWhite = mFrontBufferOnWhite;
|
|
mFrontBuffer = mBackBuffer;
|
|
mFrontBufferOnWhite = mBackBufferOnWhite;
|
|
mBackBuffer.Set(this, frontBuffer);
|
|
mBackBufferOnWhite = frontBufferOnWhite;
|
|
RefPtr<gfxSharedReadLock> frontLock = mFrontLock;
|
|
mFrontLock = mBackLock;
|
|
mBackLock = frontLock;
|
|
nsIntRegion invalidFront = mInvalidFront;
|
|
mInvalidFront = mInvalidBack;
|
|
mInvalidBack = invalidFront;
|
|
}
|
|
|
|
static bool
|
|
CopyFrontToBack(TextureClient* aFront,
|
|
TextureClient* aBack,
|
|
const gfx::IntRect& aRectToCopy)
|
|
{
|
|
if (!aFront->Lock(OpenMode::OPEN_READ)) {
|
|
NS_WARNING("Failed to lock the tile's front buffer");
|
|
return false;
|
|
}
|
|
|
|
if (!aBack->Lock(OpenMode::OPEN_READ_WRITE)) {
|
|
NS_WARNING("Failed to lock the tile's back buffer");
|
|
return false;
|
|
}
|
|
|
|
gfx::IntPoint rectToCopyTopLeft = aRectToCopy.TopLeft();
|
|
aFront->CopyToTextureClient(aBack, &aRectToCopy, &rectToCopyTopLeft);
|
|
return true;
|
|
}
|
|
|
|
void
|
|
TileClient::ValidateBackBufferFromFront(const nsIntRegion& aDirtyRegion,
|
|
nsIntRegion& aAddPaintedRegion)
|
|
{
|
|
if (mBackBuffer && mFrontBuffer) {
|
|
gfx::IntSize tileSize = mFrontBuffer->GetSize();
|
|
const nsIntRect tileRect = nsIntRect(0, 0, tileSize.width, tileSize.height);
|
|
|
|
if (aDirtyRegion.Contains(tileRect)) {
|
|
// The dirty region means that we no longer need the front buffer, so
|
|
// discard it.
|
|
DiscardFrontBuffer();
|
|
} else {
|
|
// Region that needs copying.
|
|
nsIntRegion regionToCopy = mInvalidBack;
|
|
|
|
regionToCopy.Sub(regionToCopy, aDirtyRegion);
|
|
|
|
aAddPaintedRegion = regionToCopy;
|
|
|
|
if (regionToCopy.IsEmpty()) {
|
|
// Just redraw it all.
|
|
return;
|
|
}
|
|
|
|
// Copy the bounding rect of regionToCopy. As tiles are quite small, it
|
|
// is unlikely that we'd save much by copying each individual rect of the
|
|
// region, but we can reevaluate this if it becomes an issue.
|
|
const nsIntRect rectToCopy = regionToCopy.GetBounds();
|
|
gfx::IntRect gfxRectToCopy(rectToCopy.x, rectToCopy.y, rectToCopy.width, rectToCopy.height);
|
|
CopyFrontToBack(mFrontBuffer, mBackBuffer, gfxRectToCopy);
|
|
|
|
if (mBackBufferOnWhite) {
|
|
MOZ_ASSERT(mFrontBufferOnWhite);
|
|
CopyFrontToBack(mFrontBufferOnWhite, mBackBufferOnWhite, gfxRectToCopy);
|
|
}
|
|
|
|
mInvalidBack.SetEmpty();
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
TileClient::DiscardFrontBuffer()
|
|
{
|
|
if (mFrontBuffer) {
|
|
MOZ_ASSERT(mFrontLock);
|
|
#if defined(MOZ_WIDGET_GONK) && ANDROID_VERSION >= 17
|
|
MOZ_ASSERT(!mFrontBufferOnWhite);
|
|
if (mFrontBuffer->GetIPDLActor() &&
|
|
mCompositableClient && mCompositableClient->GetIPDLActor()) {
|
|
// remove old buffer from CompositableHost
|
|
RefPtr<AsyncTransactionTracker> tracker = new RemoveTextureFromCompositableTracker();
|
|
// Hold TextureClient until transaction complete.
|
|
tracker->SetTextureClient(mFrontBuffer);
|
|
mFrontBuffer->SetRemoveFromCompositableTracker(tracker);
|
|
// RemoveTextureFromCompositableAsync() expects CompositorChild's presence.
|
|
mManager->AsShadowForwarder()->RemoveTextureFromCompositableAsync(tracker,
|
|
mCompositableClient,
|
|
mFrontBuffer);
|
|
}
|
|
#endif
|
|
mManager->ReturnTextureClientDeferred(*mFrontBuffer);
|
|
if (mFrontBufferOnWhite) {
|
|
mManager->ReturnTextureClientDeferred(*mFrontBufferOnWhite);
|
|
}
|
|
mFrontLock->ReadUnlock();
|
|
if (mFrontBuffer->IsLocked()) {
|
|
mFrontBuffer->Unlock();
|
|
}
|
|
if (mFrontBufferOnWhite && mFrontBufferOnWhite->IsLocked()) {
|
|
mFrontBufferOnWhite->Unlock();
|
|
}
|
|
mFrontBuffer = nullptr;
|
|
mFrontBufferOnWhite = nullptr;
|
|
mFrontLock = nullptr;
|
|
}
|
|
}
|
|
|
|
void
|
|
TileClient::DiscardBackBuffer()
|
|
{
|
|
if (mBackBuffer) {
|
|
MOZ_ASSERT(mBackLock);
|
|
if (!mBackBuffer->ImplementsLocking() && mBackLock->GetReadCount() > 1) {
|
|
// Our current back-buffer is still locked by the compositor. This can occur
|
|
// when the client is producing faster than the compositor can consume. In
|
|
// this case we just want to drop it and not return it to the pool.
|
|
mManager->ReportClientLost(*mBackBuffer);
|
|
if (mBackBufferOnWhite) {
|
|
mManager->ReportClientLost(*mBackBufferOnWhite);
|
|
}
|
|
} else {
|
|
mManager->ReturnTextureClient(*mBackBuffer);
|
|
if (mBackBufferOnWhite) {
|
|
mManager->ReturnTextureClient(*mBackBufferOnWhite);
|
|
}
|
|
}
|
|
mBackLock->ReadUnlock();
|
|
if (mBackBuffer->IsLocked()) {
|
|
mBackBuffer->Unlock();
|
|
}
|
|
if (mBackBufferOnWhite && mBackBufferOnWhite->IsLocked()) {
|
|
mBackBufferOnWhite->Unlock();
|
|
}
|
|
mBackBuffer.Set(this, nullptr);
|
|
mBackBufferOnWhite = nullptr;
|
|
mBackLock = nullptr;
|
|
}
|
|
}
|
|
|
|
TextureClient*
|
|
TileClient::GetBackBuffer(const nsIntRegion& aDirtyRegion,
|
|
gfxContentType aContent,
|
|
SurfaceMode aMode,
|
|
bool *aCreatedTextureClient,
|
|
nsIntRegion& aAddPaintedRegion,
|
|
RefPtr<TextureClient>* aBackBufferOnWhite)
|
|
{
|
|
// Try to re-use the front-buffer if possible
|
|
if (mFrontBuffer &&
|
|
mFrontBuffer->HasInternalBuffer() &&
|
|
mFrontLock->GetReadCount() == 1 &&
|
|
!(aMode == SurfaceMode::SURFACE_COMPONENT_ALPHA && !mFrontBufferOnWhite)) {
|
|
// If we had a backbuffer we no longer care about it since we'll
|
|
// re-use the front buffer.
|
|
DiscardBackBuffer();
|
|
Flip();
|
|
*aBackBufferOnWhite = mBackBufferOnWhite;
|
|
return mBackBuffer;
|
|
}
|
|
|
|
if (!mBackBuffer ||
|
|
mBackLock->GetReadCount() > 1) {
|
|
|
|
if (mBackLock) {
|
|
// Before we Replacing the lock by another one we need to unlock it!
|
|
mBackLock->ReadUnlock();
|
|
}
|
|
|
|
if (mBackBuffer) {
|
|
// Our current back-buffer is still locked by the compositor. This can occur
|
|
// when the client is producing faster than the compositor can consume. In
|
|
// this case we just want to drop it and not return it to the pool.
|
|
mManager->ReportClientLost(*mBackBuffer);
|
|
}
|
|
if (mBackBufferOnWhite) {
|
|
mManager->ReportClientLost(*mBackBufferOnWhite);
|
|
mBackBufferOnWhite = nullptr;
|
|
}
|
|
|
|
TextureClientPool *pool =
|
|
mManager->GetTexturePool(gfxPlatform::GetPlatform()->Optimal2DFormatForContent(aContent));
|
|
mBackBuffer.Set(this, pool->GetTextureClient());
|
|
if (!mBackBuffer) {
|
|
return nullptr;
|
|
}
|
|
|
|
if (aMode == SurfaceMode::SURFACE_COMPONENT_ALPHA) {
|
|
mBackBufferOnWhite = pool->GetTextureClient();
|
|
if (!mBackBufferOnWhite) {
|
|
mBackBuffer.Set(this, nullptr);
|
|
return nullptr;
|
|
}
|
|
}
|
|
|
|
// Create a lock for our newly created back-buffer.
|
|
if (mManager->AsShadowForwarder()->IsSameProcess()) {
|
|
// If our compositor is in the same process, we can save some cycles by not
|
|
// using shared memory.
|
|
mBackLock = new gfxMemorySharedReadLock();
|
|
} else {
|
|
mBackLock = new gfxShmSharedReadLock(mManager->AsShadowForwarder());
|
|
}
|
|
|
|
MOZ_ASSERT(mBackLock->IsValid());
|
|
|
|
*aCreatedTextureClient = true;
|
|
mInvalidBack = nsIntRect(0, 0, mBackBuffer->GetSize().width, mBackBuffer->GetSize().height);
|
|
}
|
|
|
|
ValidateBackBufferFromFront(aDirtyRegion, aAddPaintedRegion);
|
|
|
|
*aBackBufferOnWhite = mBackBufferOnWhite;
|
|
return mBackBuffer;
|
|
}
|
|
|
|
TileDescriptor
|
|
TileClient::GetTileDescriptor()
|
|
{
|
|
if (IsPlaceholderTile()) {
|
|
return PlaceholderTileDescriptor();
|
|
}
|
|
MOZ_ASSERT(mFrontLock);
|
|
if (mFrontLock->GetType() == gfxSharedReadLock::TYPE_MEMORY) {
|
|
// AddRef here and Release when receiving on the host side to make sure the
|
|
// reference count doesn't go to zero before the host receives the message.
|
|
// see TiledLayerBufferComposite::TiledLayerBufferComposite
|
|
mFrontLock.get()->AddRef();
|
|
}
|
|
|
|
if (mFrontLock->GetType() == gfxSharedReadLock::TYPE_MEMORY) {
|
|
return TexturedTileDescriptor(nullptr, mFrontBuffer->GetIPDLActor(),
|
|
mFrontBufferOnWhite ? MaybeTexture(mFrontBufferOnWhite->GetIPDLActor()) : MaybeTexture(null_t()),
|
|
TileLock(uintptr_t(mFrontLock.get())));
|
|
} else {
|
|
gfxShmSharedReadLock *lock = static_cast<gfxShmSharedReadLock*>(mFrontLock.get());
|
|
return TexturedTileDescriptor(nullptr, mFrontBuffer->GetIPDLActor(),
|
|
mFrontBufferOnWhite ? MaybeTexture(mFrontBufferOnWhite->GetIPDLActor()) : MaybeTexture(null_t()),
|
|
TileLock(lock->GetShmemSection()));
|
|
}
|
|
}
|
|
|
|
void
|
|
ClientTiledLayerBuffer::ReadUnlock() {
|
|
for (size_t i = 0; i < mRetainedTiles.Length(); i++) {
|
|
if (mRetainedTiles[i].IsPlaceholderTile()) continue;
|
|
mRetainedTiles[i].ReadUnlock();
|
|
}
|
|
}
|
|
|
|
void
|
|
ClientTiledLayerBuffer::ReadLock() {
|
|
for (size_t i = 0; i < mRetainedTiles.Length(); i++) {
|
|
if (mRetainedTiles[i].IsPlaceholderTile()) continue;
|
|
mRetainedTiles[i].ReadLock();
|
|
}
|
|
}
|
|
|
|
void
|
|
ClientTiledLayerBuffer::Release()
|
|
{
|
|
for (size_t i = 0; i < mRetainedTiles.Length(); i++) {
|
|
if (mRetainedTiles[i].IsPlaceholderTile()) continue;
|
|
mRetainedTiles[i].Release();
|
|
}
|
|
}
|
|
|
|
void
|
|
ClientTiledLayerBuffer::DiscardBuffers()
|
|
{
|
|
for (size_t i = 0; i < mRetainedTiles.Length(); i++) {
|
|
if (mRetainedTiles[i].IsPlaceholderTile()) continue;
|
|
mRetainedTiles[i].DiscardFrontBuffer();
|
|
mRetainedTiles[i].DiscardBackBuffer();
|
|
}
|
|
}
|
|
|
|
SurfaceDescriptorTiles
|
|
ClientTiledLayerBuffer::GetSurfaceDescriptorTiles()
|
|
{
|
|
InfallibleTArray<TileDescriptor> tiles;
|
|
|
|
for (size_t i = 0; i < mRetainedTiles.Length(); i++) {
|
|
TileDescriptor tileDesc;
|
|
if (mRetainedTiles.SafeElementAt(i, GetPlaceholderTile()) == GetPlaceholderTile()) {
|
|
tileDesc = PlaceholderTileDescriptor();
|
|
} else {
|
|
tileDesc = mRetainedTiles[i].GetTileDescriptor();
|
|
}
|
|
tiles.AppendElement(tileDesc);
|
|
}
|
|
return SurfaceDescriptorTiles(mValidRegion, mPaintedRegion,
|
|
tiles, mRetainedWidth, mRetainedHeight,
|
|
mResolution, mFrameResolution.scale);
|
|
}
|
|
|
|
void
|
|
ClientTiledLayerBuffer::PaintThebes(const nsIntRegion& aNewValidRegion,
|
|
const nsIntRegion& aPaintRegion,
|
|
LayerManager::DrawPaintedLayerCallback aCallback,
|
|
void* aCallbackData)
|
|
{
|
|
TILING_LOG("TILING %p: PaintThebes painting region %s\n", mPaintedLayer, Stringify(aPaintRegion).c_str());
|
|
TILING_LOG("TILING %p: PaintThebes new valid region %s\n", mPaintedLayer, Stringify(aNewValidRegion).c_str());
|
|
|
|
mCallback = aCallback;
|
|
mCallbackData = aCallbackData;
|
|
|
|
#ifdef GFX_TILEDLAYER_PREF_WARNINGS
|
|
long start = PR_IntervalNow();
|
|
#endif
|
|
|
|
// If this region is empty XMost() - 1 will give us a negative value.
|
|
NS_ASSERTION(!aPaintRegion.GetBounds().IsEmpty(), "Empty paint region\n");
|
|
|
|
if (!gfxPrefs::TiledDrawTargetEnabled()) {
|
|
nsRefPtr<gfxContext> ctxt;
|
|
|
|
const nsIntRect bounds = aPaintRegion.GetBounds();
|
|
{
|
|
PROFILER_LABEL("ClientTiledLayerBuffer", "PaintThebesSingleBufferAlloc",
|
|
js::ProfileEntry::Category::GRAPHICS);
|
|
|
|
gfxImageFormat format =
|
|
gfxPlatform::GetPlatform()->OptimalFormatForContent(
|
|
GetContentType());
|
|
|
|
mSinglePaintDrawTarget =
|
|
gfxPlatform::GetPlatform()->CreateOffscreenContentDrawTarget(
|
|
gfx::IntSize(ceilf(bounds.width * mResolution),
|
|
ceilf(bounds.height * mResolution)),
|
|
gfx::ImageFormatToSurfaceFormat(format));
|
|
|
|
if (!mSinglePaintDrawTarget) {
|
|
return;
|
|
}
|
|
|
|
ctxt = new gfxContext(mSinglePaintDrawTarget);
|
|
|
|
mSinglePaintBufferOffset = nsIntPoint(bounds.x, bounds.y);
|
|
}
|
|
ctxt->NewPath();
|
|
ctxt->SetMatrix(
|
|
ctxt->CurrentMatrix().Scale(mResolution, mResolution).
|
|
Translate(-bounds.x, -bounds.y));
|
|
#ifdef GFX_TILEDLAYER_PREF_WARNINGS
|
|
if (PR_IntervalNow() - start > 3) {
|
|
printf_stderr("Slow alloc %i\n", PR_IntervalNow() - start);
|
|
}
|
|
start = PR_IntervalNow();
|
|
#endif
|
|
PROFILER_LABEL("ClientTiledLayerBuffer", "PaintThebesSingleBufferDraw",
|
|
js::ProfileEntry::Category::GRAPHICS);
|
|
|
|
mCallback(mPaintedLayer, ctxt, aPaintRegion, DrawRegionClip::NONE, nsIntRegion(), mCallbackData);
|
|
}
|
|
|
|
#ifdef GFX_TILEDLAYER_PREF_WARNINGS
|
|
if (PR_IntervalNow() - start > 30) {
|
|
const nsIntRect bounds = aPaintRegion.GetBounds();
|
|
printf_stderr("Time to draw %i: %i, %i, %i, %i\n", PR_IntervalNow() - start, bounds.x, bounds.y, bounds.width, bounds.height);
|
|
if (aPaintRegion.IsComplex()) {
|
|
printf_stderr("Complex region\n");
|
|
nsIntRegionRectIterator it(aPaintRegion);
|
|
for (const nsIntRect* rect = it.Next(); rect != nullptr; rect = it.Next()) {
|
|
printf_stderr(" rect %i, %i, %i, %i\n", rect->x, rect->y, rect->width, rect->height);
|
|
}
|
|
}
|
|
}
|
|
start = PR_IntervalNow();
|
|
#endif
|
|
|
|
PROFILER_LABEL("ClientTiledLayerBuffer", "PaintThebesUpdate",
|
|
js::ProfileEntry::Category::GRAPHICS);
|
|
|
|
mNewValidRegion = aNewValidRegion;
|
|
Update(aNewValidRegion, aPaintRegion);
|
|
|
|
#ifdef GFX_TILEDLAYER_PREF_WARNINGS
|
|
if (PR_IntervalNow() - start > 10) {
|
|
const nsIntRect bounds = aPaintRegion.GetBounds();
|
|
printf_stderr("Time to tile %i: %i, %i, %i, %i\n", PR_IntervalNow() - start, bounds.x, bounds.y, bounds.width, bounds.height);
|
|
}
|
|
#endif
|
|
|
|
mLastPaintContentType = GetContentType(&mLastPaintSurfaceMode);
|
|
mCallback = nullptr;
|
|
mCallbackData = nullptr;
|
|
mSinglePaintDrawTarget = nullptr;
|
|
}
|
|
|
|
void PadDrawTargetOutFromRegion(RefPtr<DrawTarget> drawTarget, nsIntRegion ®ion)
|
|
{
|
|
struct LockedBits {
|
|
uint8_t *data;
|
|
IntSize size;
|
|
int32_t stride;
|
|
SurfaceFormat format;
|
|
static int clamp(int x, int min, int max)
|
|
{
|
|
if (x < min)
|
|
x = min;
|
|
if (x > max)
|
|
x = max;
|
|
return x;
|
|
}
|
|
|
|
static void ensure_memcpy(uint8_t *dst, uint8_t *src, size_t n, uint8_t *bitmap, int stride, int height)
|
|
{
|
|
if (src + n > bitmap + stride*height) {
|
|
MOZ_CRASH("long src memcpy");
|
|
}
|
|
if (src < bitmap) {
|
|
MOZ_CRASH("short src memcpy");
|
|
}
|
|
if (dst + n > bitmap + stride*height) {
|
|
MOZ_CRASH("long dst mempcy");
|
|
}
|
|
if (dst < bitmap) {
|
|
MOZ_CRASH("short dst mempcy");
|
|
}
|
|
}
|
|
|
|
static void visitor(void *closure, VisitSide side, int x1, int y1, int x2, int y2) {
|
|
LockedBits *lb = static_cast<LockedBits*>(closure);
|
|
uint8_t *bitmap = lb->data;
|
|
const int bpp = gfx::BytesPerPixel(lb->format);
|
|
const int stride = lb->stride;
|
|
const int width = lb->size.width;
|
|
const int height = lb->size.height;
|
|
|
|
if (side == VisitSide::TOP) {
|
|
if (y1 > 0) {
|
|
x1 = clamp(x1, 0, width - 1);
|
|
x2 = clamp(x2, 0, width - 1);
|
|
ensure_memcpy(&bitmap[x1*bpp + (y1-1) * stride], &bitmap[x1*bpp + y1 * stride], (x2 - x1) * bpp, bitmap, stride, height);
|
|
memcpy(&bitmap[x1*bpp + (y1-1) * stride], &bitmap[x1*bpp + y1 * stride], (x2 - x1) * bpp);
|
|
}
|
|
} else if (side == VisitSide::BOTTOM) {
|
|
if (y1 < height) {
|
|
x1 = clamp(x1, 0, width - 1);
|
|
x2 = clamp(x2, 0, width - 1);
|
|
ensure_memcpy(&bitmap[x1*bpp + y1 * stride], &bitmap[x1*bpp + (y1-1) * stride], (x2 - x1) * bpp, bitmap, stride, height);
|
|
memcpy(&bitmap[x1*bpp + y1 * stride], &bitmap[x1*bpp + (y1-1) * stride], (x2 - x1) * bpp);
|
|
}
|
|
} else if (side == VisitSide::LEFT) {
|
|
if (x1 > 0) {
|
|
while (y1 != y2) {
|
|
memcpy(&bitmap[(x1-1)*bpp + y1 * stride], &bitmap[x1*bpp + y1*stride], bpp);
|
|
y1++;
|
|
}
|
|
}
|
|
} else if (side == VisitSide::RIGHT) {
|
|
if (x1 < width) {
|
|
while (y1 != y2) {
|
|
memcpy(&bitmap[x1*bpp + y1 * stride], &bitmap[(x1-1)*bpp + y1*stride], bpp);
|
|
y1++;
|
|
}
|
|
}
|
|
}
|
|
|
|
}
|
|
} lb;
|
|
|
|
if (drawTarget->LockBits(&lb.data, &lb.size, &lb.stride, &lb.format)) {
|
|
// we can only pad software targets so if we can't lock the bits don't pad
|
|
region.VisitEdges(lb.visitor, &lb);
|
|
drawTarget->ReleaseBits(lb.data);
|
|
}
|
|
}
|
|
|
|
void
|
|
ClientTiledLayerBuffer::PostValidate(const nsIntRegion& aPaintRegion)
|
|
{
|
|
if (gfxPrefs::TiledDrawTargetEnabled() && mMoz2DTiles.size() > 0) {
|
|
gfx::TileSet tileset;
|
|
for (size_t i = 0; i < mMoz2DTiles.size(); ++i) {
|
|
mMoz2DTiles[i].mTileOrigin -= mTilingOrigin;
|
|
}
|
|
tileset.mTiles = &mMoz2DTiles[0];
|
|
tileset.mTileCount = mMoz2DTiles.size();
|
|
RefPtr<DrawTarget> drawTarget = gfx::Factory::CreateTiledDrawTarget(tileset);
|
|
drawTarget->SetTransform(Matrix());
|
|
|
|
RefPtr<gfxContext> ctx = new gfxContext(drawTarget);
|
|
ctx->SetMatrix(
|
|
ctx->CurrentMatrix().Scale(mResolution, mResolution).Translate(ThebesPoint(-mTilingOrigin)));
|
|
|
|
mCallback(mPaintedLayer, ctx, aPaintRegion, DrawRegionClip::DRAW, nsIntRegion(), mCallbackData);
|
|
mMoz2DTiles.clear();
|
|
// Reset:
|
|
mTilingOrigin = IntPoint(std::numeric_limits<int32_t>::max(),
|
|
std::numeric_limits<int32_t>::max());
|
|
}
|
|
}
|
|
|
|
void
|
|
ClientTiledLayerBuffer::UnlockTile(TileClient aTile)
|
|
{
|
|
// We locked the back buffer, and flipped so we now need to unlock the front
|
|
if (aTile.mFrontBuffer && aTile.mFrontBuffer->IsLocked()) {
|
|
aTile.mFrontBuffer->Unlock();
|
|
aTile.mFrontBuffer->SyncWithObject(mCompositableClient->GetForwarder()->GetSyncObject());
|
|
}
|
|
if (aTile.mFrontBufferOnWhite && aTile.mFrontBufferOnWhite->IsLocked()) {
|
|
aTile.mFrontBufferOnWhite->Unlock();
|
|
aTile.mFrontBufferOnWhite->SyncWithObject(mCompositableClient->GetForwarder()->GetSyncObject());
|
|
}
|
|
if (aTile.mBackBuffer && aTile.mBackBuffer->IsLocked()) {
|
|
aTile.mBackBuffer->Unlock();
|
|
}
|
|
if (aTile.mBackBufferOnWhite && aTile.mBackBufferOnWhite->IsLocked()) {
|
|
aTile.mBackBufferOnWhite->Unlock();
|
|
}
|
|
}
|
|
|
|
TileClient
|
|
ClientTiledLayerBuffer::ValidateTile(TileClient aTile,
|
|
const nsIntPoint& aTileOrigin,
|
|
const nsIntRegion& aDirtyRegion)
|
|
{
|
|
PROFILER_LABEL("ClientTiledLayerBuffer", "ValidateTile",
|
|
js::ProfileEntry::Category::GRAPHICS);
|
|
|
|
#ifdef GFX_TILEDLAYER_PREF_WARNINGS
|
|
if (aDirtyRegion.IsComplex()) {
|
|
printf_stderr("Complex region\n");
|
|
}
|
|
#endif
|
|
|
|
if (aTile.IsPlaceholderTile()) {
|
|
aTile.SetLayerManager(mManager);
|
|
}
|
|
aTile.SetCompositableClient(mCompositableClient);
|
|
|
|
bool createdTextureClient = false;
|
|
nsIntRegion offsetScaledDirtyRegion = aDirtyRegion.MovedBy(-aTileOrigin);
|
|
offsetScaledDirtyRegion.ScaleRoundOut(mResolution, mResolution);
|
|
|
|
bool usingTiledDrawTarget = gfxPrefs::TiledDrawTargetEnabled();
|
|
MOZ_ASSERT(usingTiledDrawTarget || !!mSinglePaintDrawTarget);
|
|
|
|
SurfaceMode mode;
|
|
gfxContentType content = GetContentType(&mode);
|
|
nsIntRegion extraPainted;
|
|
RefPtr<TextureClient> backBufferOnWhite;
|
|
RefPtr<TextureClient> backBuffer =
|
|
aTile.GetBackBuffer(offsetScaledDirtyRegion,
|
|
content, mode,
|
|
&createdTextureClient, extraPainted,
|
|
&backBufferOnWhite);
|
|
|
|
extraPainted.MoveBy(aTileOrigin);
|
|
extraPainted.And(extraPainted, mNewValidRegion);
|
|
mPaintedRegion.Or(mPaintedRegion, extraPainted);
|
|
|
|
if (!backBuffer) {
|
|
NS_WARNING("Failed to allocate a tile TextureClient");
|
|
aTile.DiscardBackBuffer();
|
|
aTile.DiscardFrontBuffer();
|
|
return TileClient();
|
|
}
|
|
|
|
// the back buffer may have been already locked in ValidateBackBufferFromFront
|
|
if (!backBuffer->IsLocked()) {
|
|
if (!backBuffer->Lock(OpenMode::OPEN_READ_WRITE)) {
|
|
NS_WARNING("Failed to lock a tile TextureClient");
|
|
aTile.DiscardBackBuffer();
|
|
aTile.DiscardFrontBuffer();
|
|
return TileClient();
|
|
}
|
|
}
|
|
|
|
if (backBufferOnWhite && !backBufferOnWhite->IsLocked()) {
|
|
if (!backBufferOnWhite->Lock(OpenMode::OPEN_READ_WRITE)) {
|
|
NS_WARNING("Failed to lock tile TextureClient for updating.");
|
|
aTile.DiscardBackBuffer();
|
|
aTile.DiscardFrontBuffer();
|
|
return TileClient();
|
|
}
|
|
}
|
|
|
|
if (usingTiledDrawTarget) {
|
|
if (createdTextureClient) {
|
|
if (!mCompositableClient->AddTextureClient(backBuffer)) {
|
|
NS_WARNING("Failed to add tile TextureClient.");
|
|
aTile.DiscardFrontBuffer();
|
|
aTile.DiscardBackBuffer();
|
|
return aTile;
|
|
}
|
|
if (backBufferOnWhite && !mCompositableClient->AddTextureClient(backBufferOnWhite)) {
|
|
NS_WARNING("Failed to add tile TextureClient.");
|
|
aTile.DiscardFrontBuffer();
|
|
aTile.DiscardBackBuffer();
|
|
return aTile;
|
|
}
|
|
}
|
|
|
|
// prepare an array of Moz2D tiles that will be painted into in PostValidate
|
|
gfx::Tile moz2DTile;
|
|
RefPtr<DrawTarget> dt = backBuffer->BorrowDrawTarget();
|
|
RefPtr<DrawTarget> dtOnWhite;
|
|
if (backBufferOnWhite) {
|
|
dtOnWhite = backBufferOnWhite->BorrowDrawTarget();
|
|
moz2DTile.mDrawTarget = Factory::CreateDualDrawTarget(dt, dtOnWhite);
|
|
} else {
|
|
moz2DTile.mDrawTarget = dt;
|
|
}
|
|
moz2DTile.mTileOrigin = gfx::IntPoint(aTileOrigin.x, aTileOrigin.y);
|
|
if (!dt || (backBufferOnWhite && !dtOnWhite)) {
|
|
aTile.DiscardFrontBuffer();
|
|
aTile.DiscardBackBuffer();
|
|
return aTile;
|
|
}
|
|
|
|
mMoz2DTiles.push_back(moz2DTile);
|
|
mTilingOrigin.x = std::min(mTilingOrigin.x, moz2DTile.mTileOrigin.x);
|
|
mTilingOrigin.y = std::min(mTilingOrigin.y, moz2DTile.mTileOrigin.y);
|
|
|
|
nsIntRegionRectIterator it(aDirtyRegion);
|
|
for (const nsIntRect* dirtyRect = it.Next(); dirtyRect != nullptr; dirtyRect = it.Next()) {
|
|
gfx::Rect drawRect(dirtyRect->x - aTileOrigin.x,
|
|
dirtyRect->y - aTileOrigin.y,
|
|
dirtyRect->width,
|
|
dirtyRect->height);
|
|
drawRect.Scale(mResolution);
|
|
|
|
// Mark the newly updated area as invalid in the front buffer
|
|
aTile.mInvalidFront.Or(aTile.mInvalidFront,
|
|
nsIntRect(NS_lroundf(drawRect.x), NS_lroundf(drawRect.y),
|
|
drawRect.width, drawRect.height));
|
|
|
|
if (mode == SurfaceMode::SURFACE_COMPONENT_ALPHA) {
|
|
dt->FillRect(drawRect, ColorPattern(Color(0.0, 0.0, 0.0, 1.0)));
|
|
dtOnWhite->FillRect(drawRect, ColorPattern(Color(1.0, 1.0, 1.0, 1.0)));
|
|
} else if (content == gfxContentType::COLOR_ALPHA) {
|
|
dt->ClearRect(drawRect);
|
|
}
|
|
}
|
|
|
|
// The new buffer is now validated, remove the dirty region from it.
|
|
aTile.mInvalidBack.SubOut(offsetScaledDirtyRegion);
|
|
|
|
aTile.Flip();
|
|
|
|
return aTile;
|
|
}
|
|
|
|
// Single paint buffer case:
|
|
|
|
MOZ_ASSERT(!backBufferOnWhite, "Component alpha only supported with TiledDrawTarget");
|
|
|
|
// 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->BorrowDrawTarget();
|
|
drawTarget->SetTransform(Matrix());
|
|
|
|
RefPtr<gfxContext> ctxt = new gfxContext(drawTarget);
|
|
|
|
// 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_lroundf((dirtyRect->x - mSinglePaintBufferOffset.x) * mResolution),
|
|
NS_lroundf((dirtyRect->y - mSinglePaintBufferOffset.y) * mResolution),
|
|
drawRect.width,
|
|
drawRect.height);
|
|
gfx::IntPoint copyTarget(NS_lroundf(drawRect.x), NS_lroundf(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));
|
|
}
|
|
|
|
// only worry about padding when not doing low-res
|
|
// because it simplifies the math and the artifacts
|
|
// won't be noticable
|
|
if (mResolution == 1) {
|
|
nsIntRect unscaledTile = nsIntRect(aTileOrigin.x,
|
|
aTileOrigin.y,
|
|
GetTileSize().width,
|
|
GetTileSize().height);
|
|
|
|
nsIntRegion tileValidRegion = GetValidRegion();
|
|
tileValidRegion.Or(tileValidRegion, aDirtyRegion);
|
|
// We only need to pad out if the tile has area that's not valid
|
|
if (!tileValidRegion.Contains(unscaledTile)) {
|
|
tileValidRegion = tileValidRegion.Intersect(unscaledTile);
|
|
// translate the region into tile space and pad
|
|
tileValidRegion.MoveBy(-nsIntPoint(unscaledTile.x, unscaledTile.y));
|
|
PadDrawTargetOutFromRegion(drawTarget, tileValidRegion);
|
|
}
|
|
}
|
|
|
|
// The new buffer is now validated, remove the dirty region from it.
|
|
aTile.mInvalidBack.SubOut(offsetScaledDirtyRegion);
|
|
|
|
#ifdef GFX_TILEDLAYER_DEBUG_OVERLAY
|
|
DrawDebugOverlay(drawTarget, aTileOrigin.x * mResolution,
|
|
aTileOrigin.y * GetPresShellResolution(), GetTileLength(), GetTileLength());
|
|
#endif
|
|
|
|
ctxt = nullptr;
|
|
drawTarget = nullptr;
|
|
|
|
nsIntRegion tileRegion =
|
|
nsIntRect(aTileOrigin.x, aTileOrigin.y,
|
|
GetScaledTileSize().width, GetScaledTileSize().height);
|
|
// Intersect this area with the portion that's invalid.
|
|
tileRegion.SubOut(GetValidRegion());
|
|
tileRegion.SubOut(aDirtyRegion); // Has now been validated
|
|
|
|
backBuffer->Unlock();
|
|
backBuffer->SetWaste(tileRegion.Area() * mResolution * mResolution);
|
|
|
|
if (createdTextureClient) {
|
|
if (!mCompositableClient->AddTextureClient(backBuffer)) {
|
|
NS_WARNING("Failed to add tile TextureClient.");
|
|
aTile.DiscardFrontBuffer();
|
|
aTile.DiscardBackBuffer();
|
|
return aTile;
|
|
}
|
|
}
|
|
|
|
aTile.Flip();
|
|
|
|
// 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;
|
|
}
|
|
|
|
/**
|
|
* This function takes the transform stored in aTransformToCompBounds
|
|
* (which was generated in GetTransformToAncestorsParentLayer), and
|
|
* modifies it with the ViewTransform from the compositor side so that
|
|
* it reflects what the compositor is actually rendering. This operation
|
|
* basically adds in the layer's async transform.
|
|
* This function then returns the scroll ancestor's composition bounds,
|
|
* transformed into the painted layer's LayerPixel coordinates, accounting
|
|
* for the compositor state.
|
|
*/
|
|
static LayerRect
|
|
GetCompositorSideCompositionBounds(const LayerMetricsWrapper& aScrollAncestor,
|
|
const Matrix4x4& aTransformToCompBounds,
|
|
const ViewTransform& aAPZTransform)
|
|
{
|
|
Matrix4x4 transform = aTransformToCompBounds * Matrix4x4(aAPZTransform);
|
|
return TransformTo<LayerPixel>(transform.Inverse(),
|
|
aScrollAncestor.Metrics().mCompositionBounds);
|
|
}
|
|
|
|
bool
|
|
ClientTiledLayerBuffer::ComputeProgressiveUpdateRegion(const nsIntRegion& aInvalidRegion,
|
|
const nsIntRegion& aOldValidRegion,
|
|
nsIntRegion& aRegionToPaint,
|
|
BasicTiledLayerPaintData* aPaintData,
|
|
bool aIsRepeated)
|
|
{
|
|
aRegionToPaint = aInvalidRegion;
|
|
|
|
// If the composition bounds rect is empty, we can't make any sensible
|
|
// decision about how to update coherently. In this case, just update
|
|
// everything in one transaction.
|
|
if (aPaintData->mCompositionBounds.IsEmpty()) {
|
|
aPaintData->mPaintFinished = true;
|
|
return false;
|
|
}
|
|
|
|
// If this is a low precision buffer, we force progressive updates. The
|
|
// assumption is that the contents is less important, so visual coherency
|
|
// is lower priority than speed.
|
|
bool drawingLowPrecision = IsLowPrecision();
|
|
|
|
// Find out if we have any non-stale content to update.
|
|
nsIntRegion staleRegion;
|
|
staleRegion.And(aInvalidRegion, aOldValidRegion);
|
|
|
|
TILING_LOG("TILING %p: Progressive update stale region %s\n", mPaintedLayer, Stringify(staleRegion).c_str());
|
|
|
|
LayerMetricsWrapper scrollAncestor;
|
|
mPaintedLayer->GetAncestorLayers(&scrollAncestor, nullptr);
|
|
|
|
// Find out the current view transform to determine which tiles to draw
|
|
// first, and see if we should just abort this paint. Aborting is usually
|
|
// caused by there being an incoming, more relevant paint.
|
|
ViewTransform viewTransform;
|
|
#if defined(MOZ_WIDGET_ANDROID) && !defined(MOZ_ANDROID_APZ)
|
|
FrameMetrics contentMetrics = scrollAncestor.Metrics();
|
|
bool abortPaint = false;
|
|
// On Android, only the primary scrollable layer is async-scrolled, and the only one
|
|
// that the Java-side code can provide details about. If we're tiling some other layer
|
|
// then we already have all the information we need about it.
|
|
if (contentMetrics.GetScrollId() == mManager->GetRootScrollableLayerId()) {
|
|
FrameMetrics compositorMetrics = contentMetrics;
|
|
// The ProgressiveUpdateCallback updates the compositorMetrics
|
|
abortPaint = mManager->ProgressiveUpdateCallback(!staleRegion.Contains(aInvalidRegion),
|
|
compositorMetrics,
|
|
!drawingLowPrecision);
|
|
viewTransform = ComputeViewTransform(contentMetrics, compositorMetrics);
|
|
}
|
|
#else
|
|
MOZ_ASSERT(mSharedFrameMetricsHelper);
|
|
|
|
bool abortPaint =
|
|
mSharedFrameMetricsHelper->UpdateFromCompositorFrameMetrics(
|
|
scrollAncestor,
|
|
!staleRegion.Contains(aInvalidRegion),
|
|
drawingLowPrecision,
|
|
viewTransform);
|
|
#endif
|
|
|
|
TILING_LOG("TILING %p: Progressive update view transform %s zoom %f abort %d\n",
|
|
mPaintedLayer, ToString(viewTransform.mTranslation).c_str(), viewTransform.mScale.scale, abortPaint);
|
|
|
|
if (abortPaint) {
|
|
// We ignore if front-end wants to abort if this is the first,
|
|
// non-low-precision paint, as in that situation, we're about to override
|
|
// front-end's page/viewport metrics.
|
|
if (!aPaintData->mFirstPaint || drawingLowPrecision) {
|
|
PROFILER_LABEL("ClientTiledLayerBuffer", "ComputeProgressiveUpdateRegion",
|
|
js::ProfileEntry::Category::GRAPHICS);
|
|
|
|
aRegionToPaint.SetEmpty();
|
|
return aIsRepeated;
|
|
}
|
|
}
|
|
|
|
LayerRect transformedCompositionBounds =
|
|
GetCompositorSideCompositionBounds(scrollAncestor,
|
|
aPaintData->mTransformToCompBounds,
|
|
viewTransform);
|
|
|
|
TILING_LOG("TILING %p: Progressive update transformed compositor bounds %s\n", mPaintedLayer, Stringify(transformedCompositionBounds).c_str());
|
|
|
|
// Compute a "coherent update rect" that we should paint all at once in a
|
|
// single transaction. This is to avoid rendering glitches on animated
|
|
// page content, and when layers change size/shape.
|
|
// On Fennec uploads are more expensive because we're not using gralloc, so
|
|
// we use a coherent update rect that is intersected with the screen at the
|
|
// time of issuing the draw command. This will paint faster but also potentially
|
|
// make the progressive paint more visible to the user while scrolling.
|
|
// On B2G uploads are cheaper and we value coherency more, especially outside
|
|
// the browser, so we always use the entire user-visible area.
|
|
nsIntRect coherentUpdateRect(LayerIntRect::ToUntyped(RoundedOut(
|
|
#ifdef MOZ_WIDGET_ANDROID
|
|
transformedCompositionBounds.Intersect(aPaintData->mCompositionBounds)
|
|
#else
|
|
transformedCompositionBounds
|
|
#endif
|
|
)));
|
|
|
|
TILING_LOG("TILING %p: Progressive update final coherency rect %s\n", mPaintedLayer, Stringify(coherentUpdateRect).c_str());
|
|
|
|
aRegionToPaint.And(aInvalidRegion, coherentUpdateRect);
|
|
aRegionToPaint.Or(aRegionToPaint, staleRegion);
|
|
bool drawingStale = !aRegionToPaint.IsEmpty();
|
|
if (!drawingStale) {
|
|
aRegionToPaint = aInvalidRegion;
|
|
}
|
|
|
|
// Prioritise tiles that are currently visible on the screen.
|
|
bool paintingVisible = false;
|
|
if (aRegionToPaint.Intersects(coherentUpdateRect)) {
|
|
aRegionToPaint.And(aRegionToPaint, coherentUpdateRect);
|
|
paintingVisible = true;
|
|
}
|
|
|
|
TILING_LOG("TILING %p: Progressive update final paint region %s\n", mPaintedLayer, Stringify(aRegionToPaint).c_str());
|
|
|
|
// Paint area that's visible and overlaps previously valid content to avoid
|
|
// visible glitches in animated elements, such as gifs.
|
|
bool paintInSingleTransaction = paintingVisible && (drawingStale || aPaintData->mFirstPaint);
|
|
|
|
TILING_LOG("TILING %p: paintingVisible %d drawingStale %d firstPaint %d singleTransaction %d\n",
|
|
mPaintedLayer, paintingVisible, drawingStale, aPaintData->mFirstPaint, paintInSingleTransaction);
|
|
|
|
// The following code decides what order to draw tiles in, based on the
|
|
// current scroll direction of the primary scrollable layer.
|
|
NS_ASSERTION(!aRegionToPaint.IsEmpty(), "Unexpectedly empty paint region!");
|
|
nsIntRect paintBounds = aRegionToPaint.GetBounds();
|
|
|
|
int startX, incX, startY, incY;
|
|
gfx::IntSize scaledTileSize = GetScaledTileSize();
|
|
if (aPaintData->mScrollOffset.x >= aPaintData->mLastScrollOffset.x) {
|
|
startX = RoundDownToTileEdge(paintBounds.x, scaledTileSize.width);
|
|
incX = scaledTileSize.width;
|
|
} else {
|
|
startX = RoundDownToTileEdge(paintBounds.XMost() - 1, scaledTileSize.width);
|
|
incX = -scaledTileSize.width;
|
|
}
|
|
|
|
if (aPaintData->mScrollOffset.y >= aPaintData->mLastScrollOffset.y) {
|
|
startY = RoundDownToTileEdge(paintBounds.y, scaledTileSize.height);
|
|
incY = scaledTileSize.height;
|
|
} else {
|
|
startY = RoundDownToTileEdge(paintBounds.YMost() - 1, scaledTileSize.height);
|
|
incY = -scaledTileSize.height;
|
|
}
|
|
|
|
// Find a tile to draw.
|
|
nsIntRect tileBounds(startX, startY, scaledTileSize.width, scaledTileSize.height);
|
|
int32_t scrollDiffX = aPaintData->mScrollOffset.x - aPaintData->mLastScrollOffset.x;
|
|
int32_t scrollDiffY = aPaintData->mScrollOffset.y - aPaintData->mLastScrollOffset.y;
|
|
// This loop will always terminate, as there is at least one tile area
|
|
// along the first/last row/column intersecting with regionToPaint, or its
|
|
// bounds would have been smaller.
|
|
while (true) {
|
|
aRegionToPaint.And(aInvalidRegion, tileBounds);
|
|
if (!aRegionToPaint.IsEmpty()) {
|
|
if (mResolution != 1) {
|
|
// Paint the entire tile for low-res. This is aimed to fixing low-res resampling
|
|
// and to avoid doing costly region accurate painting for a small area.
|
|
aRegionToPaint = tileBounds;
|
|
}
|
|
break;
|
|
}
|
|
if (Abs(scrollDiffY) >= Abs(scrollDiffX)) {
|
|
tileBounds.x += incX;
|
|
} else {
|
|
tileBounds.y += incY;
|
|
}
|
|
}
|
|
|
|
if (!aRegionToPaint.Contains(aInvalidRegion)) {
|
|
// The region needed to paint is larger then our progressive chunk size
|
|
// therefore update what we want to paint and ask for a new paint transaction.
|
|
|
|
// If we need to draw more than one tile to maintain coherency, make
|
|
// sure it happens in the same transaction by requesting this work be
|
|
// repeated immediately.
|
|
// If this is unnecessary, the remaining work will be done tile-by-tile in
|
|
// subsequent transactions. The caller code is responsible for scheduling
|
|
// the subsequent transactions as long as we don't set the mPaintFinished
|
|
// flag to true.
|
|
return (!drawingLowPrecision && paintInSingleTransaction);
|
|
}
|
|
|
|
// We're not repeating painting and we've not requested a repeat transaction,
|
|
// so the paint is finished. If there's still a separate low precision
|
|
// paint to do, it will get marked as unfinished later.
|
|
aPaintData->mPaintFinished = true;
|
|
return false;
|
|
}
|
|
|
|
bool
|
|
ClientTiledLayerBuffer::ProgressiveUpdate(nsIntRegion& aValidRegion,
|
|
nsIntRegion& aInvalidRegion,
|
|
const nsIntRegion& aOldValidRegion,
|
|
BasicTiledLayerPaintData* aPaintData,
|
|
LayerManager::DrawPaintedLayerCallback aCallback,
|
|
void* aCallbackData)
|
|
{
|
|
TILING_LOG("TILING %p: Progressive update valid region %s\n", mPaintedLayer, Stringify(aValidRegion).c_str());
|
|
TILING_LOG("TILING %p: Progressive update invalid region %s\n", mPaintedLayer, Stringify(aInvalidRegion).c_str());
|
|
TILING_LOG("TILING %p: Progressive update old valid region %s\n", mPaintedLayer, Stringify(aOldValidRegion).c_str());
|
|
|
|
bool repeat = false;
|
|
bool isBufferChanged = false;
|
|
do {
|
|
// Compute the region that should be updated. Repeat as many times as
|
|
// is required.
|
|
nsIntRegion regionToPaint;
|
|
repeat = ComputeProgressiveUpdateRegion(aInvalidRegion,
|
|
aOldValidRegion,
|
|
regionToPaint,
|
|
aPaintData,
|
|
repeat);
|
|
|
|
TILING_LOG("TILING %p: Progressive update computed paint region %s repeat %d\n", mPaintedLayer, Stringify(regionToPaint).c_str(), repeat);
|
|
|
|
// There's no further work to be done.
|
|
if (regionToPaint.IsEmpty()) {
|
|
break;
|
|
}
|
|
|
|
isBufferChanged = true;
|
|
|
|
// Keep track of what we're about to refresh.
|
|
aValidRegion.Or(aValidRegion, regionToPaint);
|
|
|
|
// aValidRegion may have been altered by InvalidateRegion, but we still
|
|
// want to display stale content until it gets progressively updated.
|
|
// Create a region that includes stale content.
|
|
nsIntRegion validOrStale;
|
|
validOrStale.Or(aValidRegion, aOldValidRegion);
|
|
|
|
// Paint the computed region and subtract it from the invalid region.
|
|
PaintThebes(validOrStale, regionToPaint, aCallback, aCallbackData);
|
|
aInvalidRegion.Sub(aInvalidRegion, regionToPaint);
|
|
} while (repeat);
|
|
|
|
TILING_LOG("TILING %p: Progressive update final valid region %s buffer changed %d\n", mPaintedLayer, Stringify(aValidRegion).c_str(), isBufferChanged);
|
|
TILING_LOG("TILING %p: Progressive update final invalid region %s\n", mPaintedLayer, Stringify(aInvalidRegion).c_str());
|
|
|
|
// Return false if nothing has been drawn, or give what has been drawn
|
|
// to the shadow layer to upload.
|
|
return isBufferChanged;
|
|
}
|
|
|
|
void
|
|
TiledContentClient::PrintInfo(std::stringstream& aStream, const char* aPrefix)
|
|
{
|
|
aStream << aPrefix;
|
|
aStream << nsPrintfCString("TiledContentClient (0x%p)", this).get();
|
|
|
|
if (profiler_feature_active("displaylistdump")) {
|
|
nsAutoCString pfx(aPrefix);
|
|
pfx += " ";
|
|
|
|
Dump(aStream, pfx.get(), false);
|
|
}
|
|
}
|
|
|
|
void
|
|
TiledContentClient::Dump(std::stringstream& aStream,
|
|
const char* aPrefix,
|
|
bool aDumpHtml)
|
|
{
|
|
mTiledBuffer.Dump(aStream, aPrefix, aDumpHtml);
|
|
}
|
|
|
|
}
|
|
}
|