зеркало из https://github.com/mozilla/gecko-dev.git
106 строки
3.2 KiB
C++
106 строки
3.2 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
|
* 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_layers_mlgpu_TexturedLayerMLGPU_h
|
|
#define mozilla_gfx_layers_mlgpu_TexturedLayerMLGPU_h
|
|
|
|
#include "LayerMLGPU.h"
|
|
#include "ImageLayers.h"
|
|
#include "mozilla/layers/ImageHost.h"
|
|
|
|
namespace mozilla {
|
|
namespace layers {
|
|
|
|
// This is the base class for canvas and image layers.
|
|
class TexturedLayerMLGPU : public LayerMLGPU
|
|
{
|
|
public:
|
|
TexturedLayerMLGPU* AsTexturedLayerMLGPU() override { return this; }
|
|
|
|
virtual gfx::SamplingFilter GetSamplingFilter() = 0;
|
|
|
|
bool SetCompositableHost(CompositableHost* aHost) override;
|
|
CompositableHost* GetCompositableHost() override;
|
|
|
|
void AssignToView(FrameBuilder* aBuilder,
|
|
RenderViewMLGPU* aView,
|
|
Maybe<gfx::Polygon>&& aGeometry) override;
|
|
|
|
TextureSource* GetTexture() const {
|
|
return mTexture;
|
|
}
|
|
ImageHost* GetImageHost() const {
|
|
return mHost;
|
|
}
|
|
|
|
// Return the scale factor from the texture source to the picture rect.
|
|
virtual Maybe<gfx::Size> GetPictureScale() const {
|
|
return Nothing();
|
|
}
|
|
|
|
// Mask layers aren't prepared like normal layers. They are bound as
|
|
// mask operations are built. Mask layers are never tiled (they are
|
|
// scaled to a lower resolution if too big), so this pathway returns
|
|
// a TextureSource.
|
|
RefPtr<TextureSource> BindAndGetTexture();
|
|
|
|
protected:
|
|
explicit TexturedLayerMLGPU(LayerManagerMLGPU* aManager);
|
|
virtual ~TexturedLayerMLGPU() override;
|
|
|
|
void AssignBigImage(FrameBuilder* aBuilder,
|
|
RenderViewMLGPU* aView,
|
|
BigImageIterator* aIter,
|
|
const Maybe<gfx::Polygon>& aGeometry);
|
|
|
|
bool OnPrepareToRender(FrameBuilder* aBuilder) override;
|
|
|
|
protected:
|
|
RefPtr<ImageHost> mHost;
|
|
RefPtr<TextureSource> mTexture;
|
|
RefPtr<TextureSource> mBigImageTexture;
|
|
gfx::IntRect mPictureRect;
|
|
};
|
|
|
|
// This is a pseudo layer that wraps a tile in an ImageLayer backed by a
|
|
// BigImage. Without this, we wouldn't have anything sensible to add to
|
|
// RenderPasses. In the future we could potentially consume the source
|
|
// layer more intelligently instead (for example, having it compute
|
|
// which textures are relevant for a given tile).
|
|
class TempImageLayerMLGPU final : public ImageLayer,
|
|
public TexturedLayerMLGPU
|
|
{
|
|
public:
|
|
explicit TempImageLayerMLGPU(LayerManagerMLGPU* aManager);
|
|
|
|
// Layer
|
|
HostLayer* AsHostLayer() override { return this; }
|
|
gfx::SamplingFilter GetSamplingFilter() override {
|
|
return mFilter;
|
|
}
|
|
bool IsContentOpaque() override {
|
|
return mIsOpaque;
|
|
}
|
|
|
|
void Init(TexturedLayerMLGPU* aSource,
|
|
const RefPtr<TextureSource>& aTexture,
|
|
const gfx::IntRect& aPictureRect);
|
|
|
|
// HostLayer
|
|
Layer* GetLayer() override { return this; }
|
|
|
|
protected:
|
|
~TempImageLayerMLGPU() override;
|
|
|
|
private:
|
|
gfx::SamplingFilter mFilter;
|
|
bool mIsOpaque;
|
|
};
|
|
|
|
} // namespace layers
|
|
} // namespace mozilla
|
|
|
|
#endif // mozilla_gfx_layers_mlgpu_TexturedLayerMLGPU_h
|