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/* -*- 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/. */
#ifndef MOZILLA_GFX_PAINTEDLAYERMLGPU_H
#define MOZILLA_GFX_PAINTEDLAYERMLGPU_H
#include "LayerManagerMLGPU.h"
#include "mozilla/layers/ContentHost.h"
#include "mozilla/layers/LayerMLGPU.h"
#include "MLGDeviceTypes.h"
#include "nsRegionFwd.h"
#include <functional>
namespace mozilla {
namespace layers {
class TiledLayerBufferComposite;
class PaintedLayerMLGPU final : public PaintedLayer, public LayerMLGPU {
public:
explicit PaintedLayerMLGPU(LayerManagerMLGPU* aManager);
virtual ~PaintedLayerMLGPU();
// Layer
HostLayer* AsHostLayer() override { return this; }
PaintedLayerMLGPU* AsPaintedLayerMLGPU() override { return this; }
Layer* GetLayer() override { return this; }
bool SetCompositableHost(CompositableHost*) override;
CompositableHost* GetCompositableHost() override;
void Disconnect() override;
bool IsContentOpaque() override;
// PaintedLayer
void InvalidateRegion(const nsIntRegion& aRegion) override {
MOZ_CRASH("PaintedLayerMLGPU can't fill invalidated regions");
}
bool HasComponentAlpha() const { return !!mTextureOnWhite; }
TextureSource* GetTexture() const { return mTexture; }
TextureSource* GetTextureOnWhite() const {
MOZ_ASSERT(HasComponentAlpha());
return mTextureOnWhite;
}
gfx::Point GetDestOrigin() const;
SamplerMode GetSamplerMode() {
// Note that when resamping, we must break the texture coordinates into
// no-repeat rects. When we have simple integer translations we can
// simply wrap around the edge of the buffer texture.
return MayResample() ? SamplerMode::LinearClamp : SamplerMode::LinearRepeat;
}
void SetRenderRegion(LayerIntRegion&& aRegion) override;
// To avoid sampling issues with complex regions and transforms, we
// squash the visible region for PaintedLayers into a single draw
// rect. RenderPasses should use this method instead of GetRenderRegion.
const LayerIntRegion& GetDrawRects();
MOZ_LAYER_DECL_NAME("PaintedLayerMLGPU", TYPE_PAINTED)
void CleanupCachedResources();
protected:
void PrintInfo(std::stringstream& aStream, const char* aPrefix) override;
bool OnPrepareToRender(FrameBuilder* aBuilder) override;
// We override this to support tiling.
void AssignToView(FrameBuilder* aBuilder, RenderViewMLGPU* aView,
Maybe<gfx::Polygon>&& aGeometry) override;
void AssignHighResTilesToView(FrameBuilder* aBuilder, RenderViewMLGPU* aView,
TiledContentHost* aTileHost,
const Maybe<gfx::Polygon>& aGeometry);
// Helper for Assign*TilesToView.
void AssignTileBufferToView(FrameBuilder* aBuilder, RenderViewMLGPU* aView,
TiledLayerBufferComposite& aTiles,
const LayerIntRegion& aCompositeRegion,
const Maybe<gfx::Polygon>& aGeometry);
void CleanupResources();
private:
RefPtr<ContentHost> mHost;
RefPtr<TextureSource> mTexture;
RefPtr<TextureSource> mTextureOnWhite;
#ifndef MOZ_IGNORE_PAINT_WILL_RESAMPLE
LayerIntRegion mDrawRects;
#endif
gfx::IntPoint mDestOrigin;
};
} // namespace layers
} // namespace mozilla
#endif
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