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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_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:
bool Lock(OpenMode) override { return true; }
void Unlock() override {}
void FillInfo(TextureData::Info& aInfo) const override;
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) {}
void DeallocateDeviceData() override;
void SetTextureSourceProvider(TextureSourceProvider* aProvider) override;
gfx::SurfaceFormat GetFormat() const override { return mFormat; }
gfx::IntSize GetSize() const override { return mSize; }
bool Lock() override;
void Unlock() override;
bool HasIntermediateBuffer() const { return true; }
bool BindTextureSource(CompositableTextureSourceRef& aTexture) override;
bool AcquireTextureSource(CompositableTextureSourceRef& aTexture) override;
protected:
RefPtr<TextureSourceProvider> mProvider;
RefPtr<DataTextureSource> mTextureSource;
gfx::SurfaceFormat mFormat;
gfx::IntSize mSize;
bool mIsLocked;
};
class DIBTextureHost : public TextureHostDirectUpload {
public:
DIBTextureHost(TextureFlags aFlags, const SurfaceDescriptorDIB& aDescriptor);
already_AddRefed<gfx::DataSourceSurface> GetAsSurface() override {
return nullptr; // TODO: cf bug 872568
}
protected:
void UpdatedInternal(const nsIntRegion* aRegion = nullptr) override;
RefPtr<gfxWindowsSurface> mSurface;
};
class TextureHostFileMapping : public TextureHostDirectUpload {
public:
TextureHostFileMapping(TextureFlags aFlags,
const SurfaceDescriptorFileMapping& aDescriptor);
~TextureHostFileMapping();
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:
void UpdatedInternal(const nsIntRegion* aRegion = nullptr) override;
HANDLE mFileMapping;
};
} // namespace layers
} // namespace mozilla
#endif /* MOZILLA_GFX_TEXTUREDIB_H */
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