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/*
* Copyright (C) 2008 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef ANDROID_GPU_HARDWARE_H
#define ANDROID_GPU_HARDWARE_H
#include <stdint.h>
#include <sys/types.h>
#include <utils/RefBase.h>
#include <utils/threads.h>
namespace android {
// ---------------------------------------------------------------------------
class GPUHardwareInterface : public RefBase
{
public:
virtual void revoke(int pid) = 0;
virtual sp<MemoryDealer> request(int pid) = 0;
virtual status_t request(const sp<IGPUCallback>& callback,
ISurfaceComposer::gpu_info_t* gpu) = 0;
virtual status_t friendlyRevoke() = 0;
virtual void unconditionalRevoke() = 0;
// used for debugging only...
virtual sp<SimpleBestFitAllocator> getAllocator() const = 0;
virtual pid_t getOwner() const = 0;
};
// ---------------------------------------------------------------------------
class IMemory;
class MemoryHeapPmem;
class PMemHeap;
class GPUHardware : public GPUHardwareInterface
{
public:
GPUHardware();
virtual ~GPUHardware();
virtual void revoke(int pid);
virtual sp<MemoryDealer> request(int pid);
virtual status_t request(const sp<IGPUCallback>& callback,
ISurfaceComposer::gpu_info_t* gpu);
virtual status_t friendlyRevoke();
virtual void unconditionalRevoke();
// used for debugging only...
virtual sp<SimpleBestFitAllocator> getAllocator() const;
virtual pid_t getOwner() const { return mOwner; }
private:
enum {
NO_OWNER = -1,
SURFACE_FAILED = -2
};
void requestLocked();
void releaseLocked(bool dispose = false);
void takeBackGPULocked();
class GPUPart
{
public:
bool surface;
size_t reserved;
GPUPart();
~GPUPart();
const sp<PMemHeapInterface>& getHeap() const;
const sp<MemoryHeapPmem>& getClientHeap() const;
bool isValid() const;
void clear();
void set(const sp<PMemHeapInterface>& heap);
bool promote();
sp<IMemory> map(bool clear = false);
void release(bool dispose);
private:
sp<PMemHeapInterface> mHeap;
wp<PMemHeapInterface> mHeapWeak;
sp<MemoryHeapPmem> mClientHeap;
};
mutable Mutex mLock;
GPUPart mHeap0; // SMI
GPUPart mHeap1; // EBI1
GPUPart mHeapR;
sp<MemoryDealer> mAllocator;
pid_t mOwner;
sp<IGPUCallback> mCallback;
wp<SimpleBestFitAllocator> mAllocatorDebug;
Condition mCondition;
};
// ---------------------------------------------------------------------------
}; // namespace android
#endif // ANDROID_GPU_HARDWARE_H
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