DXR is a code search and navigation tool aimed at making sense of large projects. It supports full-text and regex searches as well as structural queries.

Header

Mercurial (71042f6bc4f6)

VCS Links

Line Code
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "LayerManagerMLGPU.h"
#include "RenderPassMLGPU.h"
#include "RenderViewMLGPU.h"
#include "FrameBuilder.h"
#include "mozilla/layers/ImageHost.h"
#include "mozilla/layers/LayerManagerComposite.h"

namespace mozilla {
namespace layers {

using namespace gfx;

uint64_t LayerMLGPU::sFrameKey = 0;

LayerMLGPU::~LayerMLGPU() = default;

LayerMLGPU::LayerMLGPU(LayerManagerMLGPU* aManager)
    : HostLayer(aManager),
      mFrameKey(0),
      mComputedOpacity(0.0),
      mPrepared(false) {}

/* static */
void LayerMLGPU::BeginFrame() { sFrameKey++; }

LayerManagerMLGPU* LayerMLGPU::GetManager() {
  return static_cast<LayerManagerMLGPU*>(mCompositorManager);
}

bool LayerMLGPU::PrepareToRender(FrameBuilder* aBuilder,
                                 const RenderTargetIntRect& aClipRect) {
  if (mFrameKey == sFrameKey) {
    return mPrepared;
  }
  mFrameKey = sFrameKey;
  mPrepared = false;

  Layer* layer = GetLayer();

  // Only container layers may have mixed blend modes.
  MOZ_ASSERT_IF(layer->GetMixBlendMode() != CompositionOp::OP_OVER,
                layer->GetType() == Layer::TYPE_CONTAINER);

  mComputedClipRect = aClipRect;
  mComputedOpacity = layer->GetEffectiveOpacity();

  if (layer->HasMaskLayers()) {
    mMask = aBuilder->AddMaskOperation(this);
    // If the mask has no texture, the pixel shader can't read any non-zero
    // values for the mask, so we can consider the whole thing invisible.
    if (mMask && mMask->IsEmpty()) {
      mComputedOpacity = 0.0f;
    }
  } else {
    mMask = nullptr;
  }

  if (!OnPrepareToRender(aBuilder)) {
    return false;
  }

  mPrepared = true;
  return true;
}

void LayerMLGPU::AssignToView(FrameBuilder* aBuilder, RenderViewMLGPU* aView,
                              Maybe<gfx::Polygon>&& aGeometry) {
  AddBoundsToView(aBuilder, aView, std::move(aGeometry));
}

void LayerMLGPU::AddBoundsToView(FrameBuilder* aBuilder, RenderViewMLGPU* aView,
                                 Maybe<gfx::Polygon>&& aGeometry) {
  IntRect bounds = GetClippedBoundingBox(aView, aGeometry);
  aView->AddItem(this, bounds, std::move(aGeometry));
}

IntRect LayerMLGPU::GetClippedBoundingBox(
    RenderViewMLGPU* aView, const Maybe<gfx::Polygon>& aGeometry) {
  MOZ_ASSERT(IsPrepared());

  Layer* layer = GetLayer();
  const Matrix4x4& transform = layer->GetEffectiveTransform();

  Rect rect =
      aGeometry
          ? aGeometry->BoundingBox()
          : Rect(layer->GetLocalVisibleRegion().GetBounds().ToUnknownRect());
  rect = transform.TransformBounds(rect);
  rect.MoveBy(-aView->GetTargetOffset());
  rect = rect.Intersect(Rect(mComputedClipRect.ToUnknownRect()));

  IntRect bounds;
  rect.RoundOut();
  rect.ToIntRect(&bounds);
  return bounds;
}

void LayerMLGPU::MarkPrepared() {
  mFrameKey = sFrameKey;
  mPrepared = true;
}

bool LayerMLGPU::IsContentOpaque() { return GetLayer()->IsOpaque(); }

void LayerMLGPU::SetRenderRegion(LayerIntRegion&& aRegion) {
  mRenderRegion = std::move(aRegion);
}

void LayerMLGPU::SetLayerManager(HostLayerManager* aManager) {
  LayerManagerMLGPU* manager = aManager->AsLayerManagerMLGPU();
  MOZ_RELEASE_ASSERT(manager);

  HostLayer::SetLayerManager(aManager);
  GetLayer()->SetManager(manager, this);

  if (CompositableHost* host = GetCompositableHost()) {
    host->SetTextureSourceProvider(manager->GetTextureSourceProvider());
  }

  OnLayerManagerChange(manager);
}

RefLayerMLGPU::RefLayerMLGPU(LayerManagerMLGPU* aManager)
    : RefLayer(aManager, static_cast<HostLayer*>(this)), LayerMLGPU(aManager) {}

RefLayerMLGPU::~RefLayerMLGPU() = default;

ColorLayerMLGPU::ColorLayerMLGPU(LayerManagerMLGPU* aManager)
    : ColorLayer(aManager, static_cast<HostLayer*>(this)),
      LayerMLGPU(aManager) {}

ColorLayerMLGPU::~ColorLayerMLGPU() = default;

}  // namespace layers
}  // namespace mozilla