auto import from //depot/cupcake/@135843

2 files changed, 0 insertions, 644 deletions

diff --git a/libs/surfaceflinger/GPUHardware/GPUHardware.cpp b/libs/surfaceflinger/GPUHardware/GPUHardware.cpp
deleted file mode 100644
index eb75f99..0000000
--- a/libs/surfaceflinger/GPUHardware/GPUHardware.cpp
+++ /dev/null
@@ -1,581 +0,0 @@
-/*
- * 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.
- */
-
-#define LOG_TAG "SurfaceFlinger"
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <stdint.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <math.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/ioctl.h>
-
-#include <cutils/log.h>
-#include <cutils/properties.h>
-
-#include <utils/IBinder.h>
-#include <utils/MemoryDealer.h>
-#include <utils/MemoryBase.h>
-#include <utils/MemoryHeapPmem.h>
-#include <utils/MemoryHeapBase.h>
-#include <utils/IPCThreadState.h>
-#include <utils/StopWatch.h>
-
-#include <ui/ISurfaceComposer.h>
-
-#include "VRamHeap.h"
-#include "GPUHardware.h"
-
-#if HAVE_ANDROID_OS
-#include <linux/android_pmem.h>
-#endif
-
-#include "GPUHardware/GPUHardware.h"
-
-
-/* 
- * Manage the GPU. This implementation is very specific to the G1.
- * There are no abstraction here. 
- * 
- * All this code will soon go-away and be replaced by a new architecture
- * for managing graphics accelerators.
- * 
- * In the meantime, it is conceptually possible to instantiate a
- * GPUHardwareInterface for another GPU (see GPUFactory at the bottom
- * of this file); practically... doubtful.
- * 
- */
-
-namespace android {
-
-// ---------------------------------------------------------------------------
-
-class GPUClientHeap;
-class GPUAreaHeap;
-
-class GPUHardware : public GPUHardwareInterface, public IBinder::DeathRecipient
-{
-public:
-    static const int GPU_RESERVED_SIZE;
-    static const int GPUR_SIZE;
-
-            GPUHardware();
-    virtual ~GPUHardware();
-    
-    virtual void revoke(int pid);
-    virtual sp<MemoryDealer> request(int pid);
-    virtual status_t request(int pid, 
-            const sp<IGPUCallback>& callback,
-            ISurfaceComposer::gpu_info_t* gpu);
-
-    virtual status_t friendlyRevoke();
-    virtual void unconditionalRevoke();
-    
-    virtual pid_t getOwner() const { return mOwner; }
-
-    // used for debugging only...
-    virtual sp<SimpleBestFitAllocator> getAllocator() const;
-
-private:
-    
-    
-    enum {
-        NO_OWNER = -1,
-    };
-        
-    struct GPUArea {
-        sp<GPUAreaHeap>     heap;
-        sp<MemoryHeapPmem>  clientHeap;
-        sp<IMemory> map();
-    };
-    
-    struct Client {
-        pid_t       pid;
-        GPUArea     smi;
-        GPUArea     ebi;
-        GPUArea     reg;
-        void createClientHeaps();
-        void revokeAllHeaps();
-    };
-    
-    Client& getClientLocked(pid_t pid);
-    status_t requestLocked(int pid);
-    void releaseLocked();
-    void takeBackGPULocked();
-    void registerCallbackLocked(const sp<IGPUCallback>& callback,
-            Client& client);
-
-    virtual void binderDied(const wp<IBinder>& who);
-
-    mutable Mutex           mLock;
-    sp<GPUAreaHeap>         mSMIHeap;
-    sp<GPUAreaHeap>         mEBIHeap;
-    sp<GPUAreaHeap>         mREGHeap;
-
-    KeyedVector<pid_t, Client> mClients;
-    DefaultKeyedVector< wp<IBinder>, pid_t > mRegisteredClients;
-    
-    pid_t                   mOwner;
-
-    sp<MemoryDealer>        mCurrentAllocator;
-    sp<IGPUCallback>        mCallback;
-    
-    sp<SimpleBestFitAllocator>  mAllocator;
-
-    Condition               mCondition;
-};
-
-// size reserved for GPU surfaces
-// 1200 KB fits exactly:
-//  - two 320*480 16-bits double-buffered surfaces
-//  - one 320*480 32-bits double-buffered surface
-//  - one 320*240 16-bits double-buffered, 4x anti-aliased surface
-const int GPUHardware::GPU_RESERVED_SIZE  = 1200 * 1024;
-const int GPUHardware::GPUR_SIZE          = 1 * 1024 * 1024;
-
-// ---------------------------------------------------------------------------
-
-/* 
- * GPUHandle is a special IMemory given to the client. It represents their
- * handle to the GPU. Once they give it up, they loose GPU access, or if
- * they explicitly revoke their access through the binder code 1000.
- * In both cases, this triggers a callback to revoke()
- * first, and then actually powers down the chip.
- * 
- * In the case of a misbehaving app, GPUHardware can ask for an immediate
- * release of the GPU to the target process which should answer by calling
- * code 1000 on GPUHandle. If it doesn't in a timely manner, the GPU will
- * be revoked from under their feet.
- * 
- * We should never hold a strong reference on GPUHandle. In practice this
- * shouldn't be a big issue though because clients should use code 1000 and
- * not rely on the dtor being called.
- * 
- */
-
-class GPUClientHeap : public MemoryHeapPmem
-{
-public:
-    GPUClientHeap(const wp<GPUHardware>& gpu, 
-            const sp<MemoryHeapBase>& heap)
-        :  MemoryHeapPmem(heap), mGPU(gpu) { }
-protected:
-    wp<GPUHardware> mGPU;
-};
-
-class GPUAreaHeap : public MemoryHeapBase
-{
-public:
-    GPUAreaHeap(const wp<GPUHardware>& gpu,
-            const char* const vram, size_t size=0, size_t reserved=0)
-    : MemoryHeapBase(vram, size), mGPU(gpu) { 
-        if (base() != MAP_FAILED) {
-            if (reserved == 0)
-                reserved = virtualSize();
-            mAllocator = new SimpleBestFitAllocator(reserved);
-        }
-    }
-    virtual sp<MemoryHeapPmem> createClientHeap() {
-        sp<MemoryHeapBase> parentHeap(this);
-        return new GPUClientHeap(mGPU, parentHeap);
-    }
-    virtual const sp<SimpleBestFitAllocator>& getAllocator() const {
-        return mAllocator; 
-    }
-private:
-    sp<SimpleBestFitAllocator>  mAllocator;
-protected:
-    wp<GPUHardware> mGPU;
-};
-
-class GPURegisterHeap : public GPUAreaHeap
-{
-public:
-    GPURegisterHeap(const sp<GPUHardware>& gpu)
-        : GPUAreaHeap(gpu, "/dev/hw3d", GPUHardware::GPUR_SIZE) { }
-    virtual sp<MemoryHeapPmem> createClientHeap() {
-        sp<MemoryHeapBase> parentHeap(this);
-        return new MemoryHeapRegs(mGPU, parentHeap);
-    }
-private:
-    class MemoryHeapRegs : public GPUClientHeap  {
-    public:
-        MemoryHeapRegs(const wp<GPUHardware>& gpu, 
-             const sp<MemoryHeapBase>& heap)
-            : GPUClientHeap(gpu, heap) { }
-        sp<MemoryHeapPmem::MemoryPmem> createMemory(size_t offset, size_t size);
-        virtual void revoke();
-    private:
-        class GPUHandle : public MemoryHeapPmem::MemoryPmem {
-        public:
-            GPUHandle(const sp<GPUHardware>& gpu,
-                    const sp<MemoryHeapPmem>& heap)
-                : MemoryHeapPmem::MemoryPmem(heap), 
-                  mGPU(gpu), mOwner(gpu->getOwner()) { }
-            virtual ~GPUHandle();
-            virtual sp<IMemoryHeap> getMemory(
-                    ssize_t* offset, size_t* size) const;
-            virtual void revoke() { };
-            virtual status_t onTransact(
-                    uint32_t code, const Parcel& data, 
-                    Parcel* reply, uint32_t flags);
-        private:
-            void revokeNotification();
-            wp<GPUHardware> mGPU;
-            pid_t mOwner;
-        };
-    };
-};
-
-GPURegisterHeap::MemoryHeapRegs::GPUHandle::~GPUHandle() { 
-    //LOGD("GPUHandle %p released, revoking GPU", this);
-    revokeNotification(); 
-}
-void GPURegisterHeap::MemoryHeapRegs::GPUHandle::revokeNotification()  {
-    sp<GPUHardware> hw(mGPU.promote());
-    if (hw != 0) {
-        hw->revoke(mOwner);
-    }
-}
-sp<IMemoryHeap> GPURegisterHeap::MemoryHeapRegs::GPUHandle::getMemory(
-        ssize_t* offset, size_t* size) const
-{
-    sp<MemoryHeapPmem> heap = getHeap();
-    if (offset) *offset = 0;
-    if (size)   *size = heap !=0 ? heap->virtualSize() : 0;
-    return heap;
-}
-status_t GPURegisterHeap::MemoryHeapRegs::GPUHandle::onTransact(
-        uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
-{
-    status_t err = BnMemory::onTransact(code, data, reply, flags);
-    if (err == UNKNOWN_TRANSACTION && code == 1000) {
-        int callingPid = IPCThreadState::self()->getCallingPid();
-        //LOGD("pid %d voluntarily revoking gpu", callingPid);
-        if (callingPid == mOwner) {
-            revokeNotification();
-            // we've revoked the GPU, don't do it again later when we
-            // are destroyed.
-            mGPU.clear();
-        } else {
-            LOGW("%d revoking someone else's gpu? (owner=%d)",
-                    callingPid, mOwner);            
-        }
-        err = NO_ERROR;
-    }
-    return err;
-}
-
-// ---------------------------------------------------------------------------
-
-
-sp<MemoryHeapPmem::MemoryPmem> GPURegisterHeap::MemoryHeapRegs::createMemory(
-        size_t offset, size_t size)
-{
-    sp<GPUHandle> memory;
-    sp<GPUHardware> gpu = mGPU.promote();
-    if (heapID()>0 && gpu!=0) {
-#if HAVE_ANDROID_OS
-        /* this is where the GPU is powered on and the registers are mapped
-         * in the client */
-        //LOGD("ioctl(HW3D_GRANT_GPU)");
-        int err = ioctl(heapID(), HW3D_GRANT_GPU, base());
-        if (err) {
-            // it can happen if the master heap has been closed already
-            // in which case the GPU already is revoked (app crash for
-            // instance).
-            LOGW("HW3D_GRANT_GPU failed (%s), mFD=%d, base=%p",
-                    strerror(errno), heapID(), base());
-        }
-        memory = new GPUHandle(gpu, this);
-#endif
-    }
-    return memory;
-}
-
-void GPURegisterHeap::MemoryHeapRegs::revoke() 
-{
-    MemoryHeapPmem::revoke();
-#if HAVE_ANDROID_OS
-    if (heapID() > 0) {
-        //LOGD("ioctl(HW3D_REVOKE_GPU)");
-        int err = ioctl(heapID(), HW3D_REVOKE_GPU, base());
-        LOGE_IF(err, "HW3D_REVOKE_GPU failed (%s), mFD=%d, base=%p",
-                strerror(errno), heapID(), base());
-    }
-#endif
-}
-
-/*****************************************************************************/
-
-GPUHardware::GPUHardware()
-    : mOwner(NO_OWNER)
-{
-}
-
-GPUHardware::~GPUHardware()
-{
-}
-
-status_t GPUHardware::requestLocked(int pid)
-{
-    const int self_pid = getpid();
-    if (pid == self_pid) {
-        // can't use GPU from surfaceflinger's process
-        return PERMISSION_DENIED;
-    }
-
-    if (mOwner != pid) {
-        if (mREGHeap != 0) {
-            if (mOwner != NO_OWNER) {
-                // someone already has the gpu.
-                takeBackGPULocked();
-                releaseLocked();
-            }
-        } else {
-            // first time, initialize the stuff.
-            if (mSMIHeap == 0)
-                mSMIHeap = new GPUAreaHeap(this, "/dev/pmem_gpu0");
-            if (mEBIHeap == 0)
-                mEBIHeap = new GPUAreaHeap(this, 
-                        "/dev/pmem_gpu1", 0, GPU_RESERVED_SIZE);
-            mREGHeap = new GPURegisterHeap(this);
-            mAllocator = mEBIHeap->getAllocator();
-            if (mAllocator == NULL) {
-                // something went terribly wrong.
-                mSMIHeap.clear();
-                mEBIHeap.clear();
-                mREGHeap.clear();
-                return INVALID_OPERATION;
-            }
-        }
-        Client& client = getClientLocked(pid);
-        mCurrentAllocator = new MemoryDealer(client.ebi.clientHeap, mAllocator);
-        mOwner = pid;
-    }
-    return NO_ERROR;
-}
-
-sp<MemoryDealer> GPUHardware::request(int pid)
-{
-    sp<MemoryDealer> dealer;
-    Mutex::Autolock _l(mLock);
-    Client* client;
-    LOGD("pid %d requesting gpu surface (current owner = %d)", pid, mOwner);
-    if (requestLocked(pid) == NO_ERROR) {
-        dealer = mCurrentAllocator;
-        LOGD_IF(dealer!=0, "gpu surface granted to pid %d", mOwner);
-    }
-    return dealer;
-}
-
-status_t GPUHardware::request(int pid, const sp<IGPUCallback>& callback,
-        ISurfaceComposer::gpu_info_t* gpu)
-{
-    if (callback == 0)
-        return BAD_VALUE;
-
-    sp<IMemory> gpuHandle;
-    LOGD("pid %d requesting gpu core (owner = %d)", pid, mOwner);
-    Mutex::Autolock _l(mLock);
-    status_t err = requestLocked(pid);
-    if (err == NO_ERROR) {
-        // it's guaranteed to be there, be construction
-        Client& client = mClients.editValueFor(pid);
-        registerCallbackLocked(callback, client);
-        gpu->count = 2;
-        gpu->regions[0].region = client.smi.map();
-        gpu->regions[1].region = client.ebi.map();
-        gpu->regs              = client.reg.map();
-        gpu->regions[0].reserved = 0;
-        gpu->regions[1].reserved = GPU_RESERVED_SIZE;
-        if (gpu->regs != 0) {
-            //LOGD("gpu core granted to pid %d, handle base=%p",
-            //        mOwner, gpu->regs->pointer());
-        }
-        mCallback = callback;
-    } else {
-        LOGW("couldn't grant gpu core to pid %d", pid);
-    }
-    return err;
-}
-
-void GPUHardware::revoke(int pid)
-{
-    Mutex::Autolock _l(mLock);
-    if (mOwner > 0) {
-        if (pid != mOwner) {
-            LOGW("GPU owned by %d, revoke from %d", mOwner, pid);
-            return;
-        }
-        //LOGD("revoke pid=%d, owner=%d", pid, mOwner);
-        // mOwner could be <0 if the same process acquired the GPU
-        // several times without releasing it first.
-        mCondition.signal();
-        releaseLocked();
-    }
-}
-
-status_t GPUHardware::friendlyRevoke()
-{
-    Mutex::Autolock _l(mLock);
-    //LOGD("friendlyRevoke owner=%d", mOwner);
-    takeBackGPULocked();
-    releaseLocked();
-    return NO_ERROR;
-}
-
-void GPUHardware::takeBackGPULocked()
-{
-    sp<IGPUCallback> callback = mCallback;
-    mCallback.clear();
-    if (callback != 0) {
-        callback->gpuLost(); // one-way
-        mCondition.waitRelative(mLock, ms2ns(250));
-    }
-}
-
-void GPUHardware::releaseLocked()
-{
-    //LOGD("revoking gpu from pid %d", mOwner);
-    if (mOwner != NO_OWNER) {
-        // this may fail because the client might have died, and have
-        // been removed from the list.
-        ssize_t index = mClients.indexOfKey(mOwner);
-        if (index >= 0) {
-            Client& client(mClients.editValueAt(index));
-            client.revokeAllHeaps();
-        }
-        mOwner = NO_OWNER;
-        mCurrentAllocator.clear();
-        mCallback.clear();
-    }
-}
-
-GPUHardware::Client& GPUHardware::getClientLocked(pid_t pid)
-{
-    ssize_t index = mClients.indexOfKey(pid);
-    if (index < 0) {
-        Client client;
-        client.pid = pid;
-        client.smi.heap = mSMIHeap;
-        client.ebi.heap = mEBIHeap;
-        client.reg.heap = mREGHeap;
-        index = mClients.add(pid, client);
-    }
-    Client& client(mClients.editValueAt(index));
-    client.createClientHeaps();
-    return client;
-}
-
-// ----------------------------------------------------------------------------
-// for debugging / testing ...
-
-sp<SimpleBestFitAllocator> GPUHardware::getAllocator() const {
-    Mutex::Autolock _l(mLock);
-    return mAllocator;
-}
-
-void GPUHardware::unconditionalRevoke()
-{
-    Mutex::Autolock _l(mLock);
-    releaseLocked();
-}
-
-// ---------------------------------------------------------------------------
-
-sp<IMemory> GPUHardware::GPUArea::map() {
-    sp<IMemory> memory;
-    if (clientHeap != 0 && heap != 0) {
-        memory = clientHeap->mapMemory(0, heap->virtualSize());
-    }
-    return memory;
-}
-
-void GPUHardware::Client::createClientHeaps() 
-{
-    if (smi.clientHeap == 0)
-        smi.clientHeap = smi.heap->createClientHeap();
-    if (ebi.clientHeap == 0)
-        ebi.clientHeap = ebi.heap->createClientHeap();
-    if (reg.clientHeap == 0)
-        reg.clientHeap = reg.heap->createClientHeap();
-}
-
-void GPUHardware::Client::revokeAllHeaps() 
-{
-    if (smi.clientHeap != 0)
-        smi.clientHeap->revoke();
-    if (ebi.clientHeap != 0)
-        ebi.clientHeap->revoke();
-    if (reg.clientHeap != 0)
-        reg.clientHeap->revoke();
-}
-
-void GPUHardware::registerCallbackLocked(const sp<IGPUCallback>& callback,
-        Client& client)
-{
-    sp<IBinder> binder = callback->asBinder();
-    if (mRegisteredClients.add(binder, client.pid) >= 0) {
-        binder->linkToDeath(this);
-    }
-}
-
-void GPUHardware::binderDied(const wp<IBinder>& who)
-{
-    Mutex::Autolock _l(mLock);
-    pid_t pid = mRegisteredClients.valueFor(who);
-    if (pid != 0) {
-        ssize_t index = mClients.indexOfKey(pid);
-        if (index >= 0) {
-            //LOGD("*** removing client at %d", index);
-            Client& client(mClients.editValueAt(index));
-            client.revokeAllHeaps(); // not really needed in theory
-            mClients.removeItemsAt(index);
-            if (mClients.size() == 0) {
-                //LOGD("*** was last client closing everything");
-                mCallback.clear();
-                mAllocator.clear();
-                mCurrentAllocator.clear();
-                mSMIHeap.clear();
-                mREGHeap.clear();
-                
-                // NOTE: we cannot clear the EBI heap because surfaceflinger
-                // itself may be using it, since this is where surfaces
-                // are allocated. if we're in the middle of compositing 
-                // a surface (even if its process just died), we cannot
-                // rip the heap under our feet.
-                
-                mOwner = NO_OWNER;
-            }
-        }
-    }
-}
-
-// ---------------------------------------------------------------------------
-
-sp<GPUHardwareInterface> GPUFactory::getGPU()
-{
-    return new GPUHardware();
-}
-
-// ---------------------------------------------------------------------------
-}; // namespace android
-
diff --git a/libs/surfaceflinger/GPUHardware/GPUHardware.h b/libs/surfaceflinger/GPUHardware/GPUHardware.h
deleted file mode 100644
index 3354528..0000000
--- a/libs/surfaceflinger/GPUHardware/GPUHardware.h
+++ /dev/null
@@ -1,63 +0,0 @@
-/*
- * 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>
-#include <utils/KeyedVector.h>
-
-#include <ui/ISurfaceComposer.h>
-
-namespace android {
-
-// ---------------------------------------------------------------------------
-
-class IGPUCallback;
-
-class GPUHardwareInterface : public virtual RefBase
-{
-public:
-    virtual void                revoke(int pid) = 0;
-    virtual sp<MemoryDealer>    request(int pid) = 0;
-    virtual status_t            request(int pid, const sp<IGPUCallback>& callback,
-            ISurfaceComposer::gpu_info_t* gpu) = 0;
-
-    virtual status_t            friendlyRevoke() = 0;
-    
-    // used for debugging only...
-    virtual sp<SimpleBestFitAllocator> getAllocator() const  = 0;
-    virtual pid_t getOwner() const = 0;
-    virtual void unconditionalRevoke() = 0;
-};
-
-// ---------------------------------------------------------------------------
-
-class GPUFactory
-{    
-public:
-    // the gpu factory
-    static sp<GPUHardwareInterface> getGPU();
-};
-
-// ---------------------------------------------------------------------------
-}; // namespace android
-
-#endif // ANDROID_GPU_HARDWARE_H