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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_RENDERCOMPOSITOR_SWGL_H
#define MOZILLA_GFX_RENDERCOMPOSITOR_SWGL_H
#include "mozilla/gfx/2D.h"
#include "mozilla/webrender/RenderCompositor.h"
namespace mozilla {
namespace wr {
class RenderCompositorSWGL : public RenderCompositor {
public:
static UniquePtr<RenderCompositor> Create(
const RefPtr<widget::CompositorWidget>& aWidget, nsACString& aError);
RenderCompositorSWGL(const RefPtr<widget::CompositorWidget>& aWidget,
void* aContext);
virtual ~RenderCompositorSWGL();
void* swgl() const override { return mContext; }
bool MakeCurrent() override;
bool BeginFrame() override;
void CancelFrame() override;
RenderedFrameId EndFrame(const nsTArray<DeviceIntRect>& aDirtyRects) final;
void StartCompositing(wr::ColorF aClearColor,
const wr::DeviceIntRect* aDirtyRects,
size_t aNumDirtyRects,
const wr::DeviceIntRect* aOpaqueRects,
size_t aNumOpaqueRects) override;
bool UsePartialPresent() override { return true; }
bool RequestFullRender() override;
void Pause() override;
bool Resume() override;
layers::WebRenderBackend BackendType() const override {
return layers::WebRenderBackend::SOFTWARE;
}
layers::WebRenderCompositor CompositorType() const override {
return layers::WebRenderCompositor::SOFTWARE;
}
bool SurfaceOriginIsTopLeft() override { return true; }
LayoutDeviceIntSize GetBufferSize() override;
bool SupportsExternalBufferTextures() const override { return true; }
// Interface for wr::Compositor
void GetCompositorCapabilities(CompositorCapabilities* aCaps) override;
private:
void* mContext = nullptr;
RefPtr<gfx::DrawTarget> mDT;
LayoutDeviceIntRegion mDirtyRegion;
// Keep consistent buffer size between BeginFrame and EndFrame/CancelFrame
// calls to make sure we don't change buffer size during rendering.
Maybe<LayoutDeviceIntSize> mRenderWidgetSize;
RefPtr<gfx::DataSourceSurface> mSurface;
uint8_t* mMappedData = nullptr;
int32_t mMappedStride = 0;
#ifdef MOZ_WAYLAND
// On Wayland we need to request full render if widget size is changed
// because SW rendering backend reallocates and clears target surface.
LayoutDeviceIntSize mLastRenderWidgetSize;
bool mRequestFullRender = false;
#endif
void ClearMappedBuffer();
bool AllocateMappedBuffer(const wr::DeviceIntRect* aOpaqueRects,
size_t aNumOpaqueRects);
void CommitMappedBuffer(bool aDirty = true);
};
} // namespace wr
} // namespace mozilla
#endif
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