mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
97 lines
2.7 KiB
C++
97 lines
2.7 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
|
* vim: sw=2 ts=8 et :
|
|
*/
|
|
/* 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_layers_ShadowLayerUtilsGralloc_h
|
|
#define mozilla_layers_ShadowLayerUtilsGralloc_h
|
|
|
|
#include <unistd.h>
|
|
#include <ui/GraphicBuffer.h>
|
|
|
|
#include "base/process.h"
|
|
#include "ipc/IPCMessageUtils.h"
|
|
|
|
#define MOZ_HAVE_SURFACEDESCRIPTORGRALLOC
|
|
#define MOZ_HAVE_PLATFORM_SPECIFIC_LAYER_BUFFERS
|
|
|
|
namespace mozilla {
|
|
namespace layers {
|
|
|
|
class MaybeMagicGrallocBufferHandle;
|
|
class SurfaceDescriptor;
|
|
class TextureHost;
|
|
|
|
struct GrallocBufferRef {
|
|
base::ProcessId mOwner;
|
|
int mKey;
|
|
|
|
GrallocBufferRef()
|
|
: mOwner(0)
|
|
, mKey(-1)
|
|
{
|
|
|
|
}
|
|
|
|
bool operator== (const GrallocBufferRef rhs) const{
|
|
return mOwner == rhs.mOwner && mKey == rhs.mKey;
|
|
}
|
|
};
|
|
/**
|
|
* This class exists to share the underlying GraphicBuffer resources
|
|
* from one thread context to another. This requires going through
|
|
* slow paths in the kernel so can be somewhat expensive.
|
|
*
|
|
* This is not just platform-specific, but also
|
|
* gralloc-implementation-specific.
|
|
*/
|
|
struct MagicGrallocBufferHandle {
|
|
typedef android::GraphicBuffer GraphicBuffer;
|
|
MagicGrallocBufferHandle() {}
|
|
|
|
MagicGrallocBufferHandle(const android::sp<GraphicBuffer>& aGraphicBuffer, GrallocBufferRef ref);
|
|
|
|
// Default copy ctor and operator= are OK
|
|
|
|
bool operator==(const MagicGrallocBufferHandle& aOther) const {
|
|
return mGraphicBuffer == aOther.mGraphicBuffer;
|
|
}
|
|
|
|
android::sp<GraphicBuffer> mGraphicBuffer;
|
|
GrallocBufferRef mRef;
|
|
};
|
|
|
|
/**
|
|
* Util function to find GraphicBuffer from SurfaceDescriptor, caller of this function should check origin
|
|
* to make sure not corrupt others buffer
|
|
*/
|
|
android::sp<android::GraphicBuffer> GetGraphicBufferFrom(MaybeMagicGrallocBufferHandle aHandle);
|
|
android::sp<android::GraphicBuffer> GetGraphicBufferFromDesc(SurfaceDescriptor aDesc);
|
|
|
|
} // namespace layers
|
|
} // namespace mozilla
|
|
|
|
namespace IPC {
|
|
|
|
template <>
|
|
struct ParamTraits<mozilla::layers::MagicGrallocBufferHandle> {
|
|
typedef mozilla::layers::MagicGrallocBufferHandle paramType;
|
|
|
|
static void Write(Message* aMsg, const paramType& aParam);
|
|
static bool Read(const Message* aMsg, void** aIter, paramType* aResult);
|
|
};
|
|
|
|
template<>
|
|
struct ParamTraits<mozilla::layers::GrallocBufferRef> {
|
|
typedef mozilla::layers::GrallocBufferRef paramType;
|
|
static void Write(Message* aMsg, const paramType& aParam);
|
|
static bool Read(const Message* aMsg, void** aIter, paramType* aResult);
|
|
};
|
|
|
|
|
|
} // namespace IPC
|
|
|
|
#endif // mozilla_layers_ShadowLayerUtilsGralloc_h
|