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/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* 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_TEXTUREDIB_H
#define MOZILLA_GFX_TEXTUREDIB_H
#include "mozilla/layers/Compositor.h"
#include "mozilla/layers/TextureClient.h"
#include "mozilla/layers/TextureHost.h"
#include "mozilla/GfxMessageUtils.h"
#include "gfxWindowsPlatform.h"
namespace mozilla {
namespace layers {
class DIBTextureData : public TextureData
{
public:
virtual bool Lock(OpenMode) override { return true; }
virtual void Unlock() override {}
virtual void FillInfo(TextureData::Info& aInfo) const override;
virtual already_AddRefed<gfx::DrawTarget> BorrowDrawTarget() override;
static
DIBTextureData* Create(gfx::IntSize aSize, gfx::SurfaceFormat aFormat,
LayersIPCChannel* aAllocator);
protected:
DIBTextureData(gfx::IntSize aSize, gfx::SurfaceFormat aFormat,
gfxWindowsSurface* aSurface)
: mSurface(aSurface)
, mSize(aSize)
, mFormat(aFormat)
{
MOZ_ASSERT(aSurface);
}
RefPtr<gfxWindowsSurface> mSurface;
gfx::IntSize mSize;
gfx::SurfaceFormat mFormat;
};
/**
* This is meant for a texture host which does a direct upload from
* Updated to a Compositor specific DataTextureSource and therefor doesn't
* need any specific Lock/Unlock magic.
*/
class TextureHostDirectUpload : public TextureHost
{
public:
TextureHostDirectUpload(TextureFlags aFlags,
gfx::SurfaceFormat aFormat,
gfx::IntSize aSize)
: TextureHost(aFlags)
, mFormat(aFormat)
, mSize(aSize)
, mIsLocked(false)
{ }
virtual void DeallocateDeviceData() override;
virtual void SetCompositor(Compositor* aCompositor) override;
virtual Compositor* GetCompositor() override { return mCompositor; }
virtual gfx::SurfaceFormat GetFormat() const override { return mFormat; }
virtual gfx::IntSize GetSize() const override { return mSize; }
virtual bool Lock() override;
virtual void Unlock() override;
virtual bool HasIntermediateBuffer() const { return true; }
virtual bool BindTextureSource(CompositableTextureSourceRef& aTexture) override;
protected:
RefPtr<DataTextureSource> mTextureSource;
RefPtr<Compositor> mCompositor;
gfx::SurfaceFormat mFormat;
gfx::IntSize mSize;
bool mIsLocked;
};
class DIBTextureHost : public TextureHostDirectUpload
{
public:
DIBTextureHost(TextureFlags aFlags,
const SurfaceDescriptorDIB& aDescriptor);
virtual already_AddRefed<gfx::DataSourceSurface> GetAsSurface() override
{
return nullptr; // TODO: cf bug 872568
}
protected:
virtual void UpdatedInternal(const nsIntRegion* aRegion = nullptr) override;
RefPtr<gfxWindowsSurface> mSurface;
};
class TextureHostFileMapping : public TextureHostDirectUpload
{
public:
TextureHostFileMapping(TextureFlags aFlags,
const SurfaceDescriptorFileMapping& aDescriptor);
~TextureHostFileMapping();
virtual already_AddRefed<gfx::DataSourceSurface> GetAsSurface() override
{
MOZ_CRASH("GFX: TextureHostFileMapping::GetAsSurface not implemented");
// Not implemented! It would be tricky to keep track of the
// scope of the file mapping. We could do this through UserData
// on the DataSourceSurface but we don't need this right now.
}
protected:
virtual void UpdatedInternal(const nsIntRegion* aRegion = nullptr) override;
HANDLE mFileMapping;
};
}
}
#endif /* MOZILLA_GFX_TEXTUREDIB_H */
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