replicant-frameworks_native/libs/gui/SurfaceComposerClient.cpp

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/*
* Copyright (C) 2007 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 "SurfaceComposerClient"
#include <stdint.h>
#include <sys/types.h>
#include <utils/Errors.h>
#include <utils/Log.h>
#include <utils/Singleton.h>
#include <utils/SortedVector.h>
#include <utils/String8.h>
#include <utils/threads.h>
#include <binder/IMemory.h>
#include <binder/IServiceManager.h>
#include <ui/DisplayInfo.h>
#include <gui/ISurface.h>
#include <gui/ISurfaceComposer.h>
#include <gui/ISurfaceComposerClient.h>
#include <gui/SurfaceComposerClient.h>
#include <private/gui/ComposerService.h>
#include <private/gui/LayerState.h>
namespace android {
// ---------------------------------------------------------------------------
ANDROID_SINGLETON_STATIC_INSTANCE(ComposerService);
ComposerService::ComposerService()
: Singleton<ComposerService>() {
Mutex::Autolock _l(mLock);
connectLocked();
}
void ComposerService::connectLocked() {
const String16 name("SurfaceFlinger");
while (getService(name, &mComposerService) != NO_ERROR) {
usleep(250000);
}
assert(mComposerService != NULL);
// Create the death listener.
class DeathObserver : public IBinder::DeathRecipient {
ComposerService& mComposerService;
virtual void binderDied(const wp<IBinder>& who) {
ALOGW("ComposerService remote (surfaceflinger) died [%p]",
who.unsafe_get());
mComposerService.composerServiceDied();
}
public:
DeathObserver(ComposerService& mgr) : mComposerService(mgr) { }
};
mDeathObserver = new DeathObserver(*const_cast<ComposerService*>(this));
mComposerService->asBinder()->linkToDeath(mDeathObserver);
}
/*static*/ sp<ISurfaceComposer> ComposerService::getComposerService() {
ComposerService& instance = ComposerService::getInstance();
Mutex::Autolock _l(instance.mLock);
if (instance.mComposerService == NULL) {
ComposerService::getInstance().connectLocked();
assert(instance.mComposerService != NULL);
ALOGD("ComposerService reconnected");
}
return instance.mComposerService;
}
void ComposerService::composerServiceDied()
{
Mutex::Autolock _l(mLock);
mComposerService = NULL;
mDeathObserver = NULL;
}
// ---------------------------------------------------------------------------
static inline
int compare_type(const ComposerState& lhs, const ComposerState& rhs) {
if (lhs.client < rhs.client) return -1;
if (lhs.client > rhs.client) return 1;
if (lhs.state.surface < rhs.state.surface) return -1;
if (lhs.state.surface > rhs.state.surface) return 1;
return 0;
}
static inline
int compare_type(const DisplayState& lhs, const DisplayState& rhs) {
return compare_type(lhs.token, rhs.token);
}
class Composer : public Singleton<Composer>
{
friend class Singleton<Composer>;
mutable Mutex mLock;
SortedVector<ComposerState> mComposerStates;
SortedVector<DisplayState > mDisplayStates;
uint32_t mForceSynchronous;
Composer() : Singleton<Composer>(),
mForceSynchronous(0)
{ }
void closeGlobalTransactionImpl(bool synchronous);
layer_state_t* getLayerStateLocked(
const sp<SurfaceComposerClient>& client, SurfaceID id);
DisplayState& getDisplayStateLocked(const sp<IBinder>& token);
public:
sp<IBinder> createDisplay(const String8& displayName);
sp<IBinder> getBuiltInDisplay(int32_t id);
status_t setPosition(const sp<SurfaceComposerClient>& client, SurfaceID id,
float x, float y);
status_t setSize(const sp<SurfaceComposerClient>& client, SurfaceID id,
uint32_t w, uint32_t h);
status_t setLayer(const sp<SurfaceComposerClient>& client, SurfaceID id,
int32_t z);
status_t setFlags(const sp<SurfaceComposerClient>& client, SurfaceID id,
uint32_t flags, uint32_t mask);
status_t setTransparentRegionHint(
const sp<SurfaceComposerClient>& client, SurfaceID id,
const Region& transparentRegion);
status_t setAlpha(const sp<SurfaceComposerClient>& client, SurfaceID id,
float alpha);
status_t setMatrix(const sp<SurfaceComposerClient>& client, SurfaceID id,
float dsdx, float dtdx, float dsdy, float dtdy);
status_t setOrientation(int orientation);
status_t setCrop(const sp<SurfaceComposerClient>& client, SurfaceID id,
const Rect& crop);
status_t setLayerStack(const sp<SurfaceComposerClient>& client,
SurfaceID id, uint32_t layerStack);
void setDisplaySurface(const sp<IBinder>& token, const sp<ISurfaceTexture>& surface);
void setDisplayLayerStack(const sp<IBinder>& token, uint32_t layerStack);
void setDisplayProjection(const sp<IBinder>& token,
uint32_t orientation,
const Rect& layerStackRect,
const Rect& displayRect);
static void closeGlobalTransaction(bool synchronous) {
Composer::getInstance().closeGlobalTransactionImpl(synchronous);
}
};
ANDROID_SINGLETON_STATIC_INSTANCE(Composer);
// ---------------------------------------------------------------------------
sp<IBinder> Composer::createDisplay(const String8& displayName) {
return ComposerService::getComposerService()->createDisplay(displayName);
}
sp<IBinder> Composer::getBuiltInDisplay(int32_t id) {
return ComposerService::getComposerService()->getBuiltInDisplay(id);
}
void Composer::closeGlobalTransactionImpl(bool synchronous) {
sp<ISurfaceComposer> sm(ComposerService::getComposerService());
Vector<ComposerState> transaction;
Vector<DisplayState> displayTransaction;
uint32_t flags = 0;
{ // scope for the lock
Mutex::Autolock _l(mLock);
transaction = mComposerStates;
mComposerStates.clear();
displayTransaction = mDisplayStates;
mDisplayStates.clear();
if (synchronous || mForceSynchronous) {
flags |= ISurfaceComposer::eSynchronous;
}
mForceSynchronous = false;
}
sm->setTransactionState(transaction, displayTransaction, flags);
}
layer_state_t* Composer::getLayerStateLocked(
const sp<SurfaceComposerClient>& client, SurfaceID id) {
ComposerState s;
s.client = client->mClient;
s.state.surface = id;
ssize_t index = mComposerStates.indexOf(s);
if (index < 0) {
// we don't have it, add an initialized layer_state to our list
index = mComposerStates.add(s);
}
ComposerState* const out = mComposerStates.editArray();
return &(out[index].state);
}
status_t Composer::setPosition(const sp<SurfaceComposerClient>& client,
SurfaceID id, float x, float y) {
Mutex::Autolock _l(mLock);
layer_state_t* s = getLayerStateLocked(client, id);
if (!s)
return BAD_INDEX;
s->what |= layer_state_t::ePositionChanged;
s->x = x;
s->y = y;
return NO_ERROR;
}
status_t Composer::setSize(const sp<SurfaceComposerClient>& client,
SurfaceID id, uint32_t w, uint32_t h) {
Mutex::Autolock _l(mLock);
layer_state_t* s = getLayerStateLocked(client, id);
if (!s)
return BAD_INDEX;
s->what |= layer_state_t::eSizeChanged;
s->w = w;
s->h = h;
// Resizing a surface makes the transaction synchronous.
mForceSynchronous = true;
return NO_ERROR;
}
status_t Composer::setLayer(const sp<SurfaceComposerClient>& client,
SurfaceID id, int32_t z) {
Mutex::Autolock _l(mLock);
layer_state_t* s = getLayerStateLocked(client, id);
if (!s)
return BAD_INDEX;
s->what |= layer_state_t::eLayerChanged;
s->z = z;
return NO_ERROR;
}
status_t Composer::setFlags(const sp<SurfaceComposerClient>& client,
SurfaceID id, uint32_t flags,
uint32_t mask) {
Mutex::Autolock _l(mLock);
layer_state_t* s = getLayerStateLocked(client, id);
if (!s)
return BAD_INDEX;
s->what |= layer_state_t::eVisibilityChanged;
s->flags &= ~mask;
s->flags |= (flags & mask);
s->mask |= mask;
return NO_ERROR;
}
status_t Composer::setTransparentRegionHint(
const sp<SurfaceComposerClient>& client, SurfaceID id,
const Region& transparentRegion) {
Mutex::Autolock _l(mLock);
layer_state_t* s = getLayerStateLocked(client, id);
if (!s)
return BAD_INDEX;
s->what |= layer_state_t::eTransparentRegionChanged;
s->transparentRegion = transparentRegion;
return NO_ERROR;
}
status_t Composer::setAlpha(const sp<SurfaceComposerClient>& client,
SurfaceID id, float alpha) {
Mutex::Autolock _l(mLock);
layer_state_t* s = getLayerStateLocked(client, id);
if (!s)
return BAD_INDEX;
s->what |= layer_state_t::eAlphaChanged;
s->alpha = alpha;
return NO_ERROR;
}
status_t Composer::setLayerStack(const sp<SurfaceComposerClient>& client,
SurfaceID id, uint32_t layerStack) {
Mutex::Autolock _l(mLock);
layer_state_t* s = getLayerStateLocked(client, id);
if (!s)
return BAD_INDEX;
s->what |= layer_state_t::eLayerStackChanged;
s->layerStack = layerStack;
return NO_ERROR;
}
status_t Composer::setMatrix(const sp<SurfaceComposerClient>& client,
SurfaceID id, float dsdx, float dtdx,
float dsdy, float dtdy) {
Mutex::Autolock _l(mLock);
layer_state_t* s = getLayerStateLocked(client, id);
if (!s)
return BAD_INDEX;
s->what |= layer_state_t::eMatrixChanged;
layer_state_t::matrix22_t matrix;
matrix.dsdx = dsdx;
matrix.dtdx = dtdx;
matrix.dsdy = dsdy;
matrix.dtdy = dtdy;
s->matrix = matrix;
return NO_ERROR;
}
status_t Composer::setCrop(const sp<SurfaceComposerClient>& client,
SurfaceID id, const Rect& crop) {
Mutex::Autolock _l(mLock);
layer_state_t* s = getLayerStateLocked(client, id);
if (!s)
return BAD_INDEX;
s->what |= layer_state_t::eCropChanged;
s->crop = crop;
return NO_ERROR;
}
// ---------------------------------------------------------------------------
DisplayState& Composer::getDisplayStateLocked(const sp<IBinder>& token) {
DisplayState s;
s.token = token;
ssize_t index = mDisplayStates.indexOf(s);
if (index < 0) {
// we don't have it, add an initialized layer_state to our list
s.what = 0;
index = mDisplayStates.add(s);
}
return mDisplayStates.editItemAt(index);
}
void Composer::setDisplaySurface(const sp<IBinder>& token,
const sp<ISurfaceTexture>& surface) {
Mutex::Autolock _l(mLock);
DisplayState& s(getDisplayStateLocked(token));
s.surface = surface;
s.what |= DisplayState::eSurfaceChanged;
}
void Composer::setDisplayLayerStack(const sp<IBinder>& token,
uint32_t layerStack) {
Mutex::Autolock _l(mLock);
DisplayState& s(getDisplayStateLocked(token));
s.layerStack = layerStack;
s.what |= DisplayState::eLayerStackChanged;
}
void Composer::setDisplayProjection(const sp<IBinder>& token,
uint32_t orientation,
const Rect& layerStackRect,
const Rect& displayRect) {
Mutex::Autolock _l(mLock);
DisplayState& s(getDisplayStateLocked(token));
s.orientation = orientation;
s.viewport = layerStackRect;
s.frame = displayRect;
s.what |= DisplayState::eDisplayProjectionChanged;
mForceSynchronous = true; // TODO: do we actually still need this?
}
// ---------------------------------------------------------------------------
SurfaceComposerClient::SurfaceComposerClient()
: mStatus(NO_INIT), mComposer(Composer::getInstance())
{
}
void SurfaceComposerClient::onFirstRef() {
sp<ISurfaceComposer> sm(ComposerService::getComposerService());
if (sm != 0) {
sp<ISurfaceComposerClient> conn = sm->createConnection();
if (conn != 0) {
mClient = conn;
mStatus = NO_ERROR;
}
}
}
SurfaceComposerClient::~SurfaceComposerClient() {
dispose();
}
status_t SurfaceComposerClient::initCheck() const {
return mStatus;
}
sp<IBinder> SurfaceComposerClient::connection() const {
return (mClient != 0) ? mClient->asBinder() : 0;
}
status_t SurfaceComposerClient::linkToComposerDeath(
const sp<IBinder::DeathRecipient>& recipient,
void* cookie, uint32_t flags) {
sp<ISurfaceComposer> sm(ComposerService::getComposerService());
return sm->asBinder()->linkToDeath(recipient, cookie, flags);
}
void SurfaceComposerClient::dispose() {
// this can be called more than once.
sp<ISurfaceComposerClient> client;
Mutex::Autolock _lm(mLock);
if (mClient != 0) {
client = mClient; // hold ref while lock is held
mClient.clear();
}
mStatus = NO_INIT;
}
sp<SurfaceControl> SurfaceComposerClient::createSurface(
const String8& name,
uint32_t w,
uint32_t h,
PixelFormat format,
uint32_t flags)
{
sp<SurfaceControl> result;
if (mStatus == NO_ERROR) {
ISurfaceComposerClient::surface_data_t data;
sp<ISurface> surface = mClient->createSurface(&data, name,
w, h, format, flags);
if (surface != 0) {
result = new SurfaceControl(this, surface, data);
}
}
return result;
}
sp<IBinder> SurfaceComposerClient::createDisplay(const String8& displayName) {
return Composer::getInstance().createDisplay(displayName);
}
sp<IBinder> SurfaceComposerClient::getBuiltInDisplay(int32_t id) {
return Composer::getInstance().getBuiltInDisplay(id);
}
status_t SurfaceComposerClient::destroySurface(SurfaceID sid) {
if (mStatus != NO_ERROR)
return mStatus;
status_t err = mClient->destroySurface(sid);
return err;
}
inline Composer& SurfaceComposerClient::getComposer() {
return mComposer;
}
// ----------------------------------------------------------------------------
void SurfaceComposerClient::openGlobalTransaction() {
// Currently a no-op
}
void SurfaceComposerClient::closeGlobalTransaction(bool synchronous) {
Composer::closeGlobalTransaction(synchronous);
}
// ----------------------------------------------------------------------------
status_t SurfaceComposerClient::setCrop(SurfaceID id, const Rect& crop) {
return getComposer().setCrop(this, id, crop);
}
status_t SurfaceComposerClient::setPosition(SurfaceID id, float x, float y) {
return getComposer().setPosition(this, id, x, y);
}
status_t SurfaceComposerClient::setSize(SurfaceID id, uint32_t w, uint32_t h) {
return getComposer().setSize(this, id, w, h);
}
status_t SurfaceComposerClient::setLayer(SurfaceID id, int32_t z) {
return getComposer().setLayer(this, id, z);
}
status_t SurfaceComposerClient::hide(SurfaceID id) {
return getComposer().setFlags(this, id,
layer_state_t::eLayerHidden,
layer_state_t::eLayerHidden);
}
status_t SurfaceComposerClient::show(SurfaceID id) {
return getComposer().setFlags(this, id,
0,
layer_state_t::eLayerHidden);
}
status_t SurfaceComposerClient::setFlags(SurfaceID id, uint32_t flags,
uint32_t mask) {
return getComposer().setFlags(this, id, flags, mask);
}
status_t SurfaceComposerClient::setTransparentRegionHint(SurfaceID id,
const Region& transparentRegion) {
return getComposer().setTransparentRegionHint(this, id, transparentRegion);
}
status_t SurfaceComposerClient::setAlpha(SurfaceID id, float alpha) {
return getComposer().setAlpha(this, id, alpha);
}
status_t SurfaceComposerClient::setLayerStack(SurfaceID id, uint32_t layerStack) {
return getComposer().setLayerStack(this, id, layerStack);
}
status_t SurfaceComposerClient::setMatrix(SurfaceID id, float dsdx, float dtdx,
float dsdy, float dtdy) {
return getComposer().setMatrix(this, id, dsdx, dtdx, dsdy, dtdy);
}
// ----------------------------------------------------------------------------
void SurfaceComposerClient::setDisplaySurface(const sp<IBinder>& token,
const sp<ISurfaceTexture>& surface) {
Composer::getInstance().setDisplaySurface(token, surface);
}
void SurfaceComposerClient::setDisplayLayerStack(const sp<IBinder>& token,
uint32_t layerStack) {
Composer::getInstance().setDisplayLayerStack(token, layerStack);
}
void SurfaceComposerClient::setDisplayProjection(const sp<IBinder>& token,
uint32_t orientation,
const Rect& layerStackRect,
const Rect& displayRect) {
Composer::getInstance().setDisplayProjection(token, orientation,
layerStackRect, displayRect);
}
// ----------------------------------------------------------------------------
status_t SurfaceComposerClient::getDisplayInfo(
const sp<IBinder>& display, DisplayInfo* info)
{
return ComposerService::getComposerService()->getDisplayInfo(display, info);
}
// ----------------------------------------------------------------------------
ScreenshotClient::ScreenshotClient()
: mWidth(0), mHeight(0), mFormat(PIXEL_FORMAT_NONE) {
}
status_t ScreenshotClient::update(const sp<IBinder>& display) {
sp<ISurfaceComposer> s(ComposerService::getComposerService());
if (s == NULL) return NO_INIT;
mHeap = 0;
return s->captureScreen(display, &mHeap,
&mWidth, &mHeight, &mFormat, 0, 0,
0, -1UL);
}
status_t ScreenshotClient::update(const sp<IBinder>& display,
uint32_t reqWidth, uint32_t reqHeight) {
sp<ISurfaceComposer> s(ComposerService::getComposerService());
if (s == NULL) return NO_INIT;
mHeap = 0;
return s->captureScreen(display, &mHeap,
&mWidth, &mHeight, &mFormat, reqWidth, reqHeight,
0, -1UL);
}
status_t ScreenshotClient::update(const sp<IBinder>& display,
uint32_t reqWidth, uint32_t reqHeight,
uint32_t minLayerZ, uint32_t maxLayerZ) {
sp<ISurfaceComposer> s(ComposerService::getComposerService());
if (s == NULL) return NO_INIT;
mHeap = 0;
return s->captureScreen(display, &mHeap,
&mWidth, &mHeight, &mFormat, reqWidth, reqHeight,
minLayerZ, maxLayerZ);
}
void ScreenshotClient::release() {
mHeap = 0;
}
void const* ScreenshotClient::getPixels() const {
return mHeap->getBase();
}
uint32_t ScreenshotClient::getWidth() const {
return mWidth;
}
uint32_t ScreenshotClient::getHeight() const {
return mHeight;
}
PixelFormat ScreenshotClient::getFormat() const {
return mFormat;
}
uint32_t ScreenshotClient::getStride() const {
return mWidth;
}
size_t ScreenshotClient::getSize() const {
return mHeap->getSize();
}
// ----------------------------------------------------------------------------
}; // namespace android