612 lines
17 KiB
C++
612 lines
17 KiB
C++
/*
|
|
* 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/threads.h>
|
|
#include <utils/SortedVector.h>
|
|
#include <utils/Log.h>
|
|
#include <utils/Singleton.h>
|
|
|
|
#include <binder/IServiceManager.h>
|
|
#include <binder/IMemory.h>
|
|
|
|
#include <ui/DisplayInfo.h>
|
|
|
|
#include <surfaceflinger/ISurfaceComposer.h>
|
|
#include <surfaceflinger/ISurfaceComposerClient.h>
|
|
#include <surfaceflinger/ISurface.h>
|
|
#include <surfaceflinger/SurfaceComposerClient.h>
|
|
|
|
#include <private/surfaceflinger/LayerState.h>
|
|
#include <private/surfaceflinger/SharedBufferStack.h>
|
|
|
|
|
|
namespace android {
|
|
// ---------------------------------------------------------------------------
|
|
|
|
ANDROID_SINGLETON_STATIC_INSTANCE(ComposerService);
|
|
|
|
ComposerService::ComposerService()
|
|
: Singleton<ComposerService>() {
|
|
const String16 name("SurfaceFlinger");
|
|
while (getService(name, &mComposerService) != NO_ERROR) {
|
|
usleep(250000);
|
|
}
|
|
mServerCblkMemory = mComposerService->getCblk();
|
|
mServerCblk = static_cast<surface_flinger_cblk_t volatile *>(
|
|
mServerCblkMemory->getBase());
|
|
}
|
|
|
|
sp<ISurfaceComposer> ComposerService::getComposerService() {
|
|
return ComposerService::getInstance().mComposerService;
|
|
}
|
|
|
|
surface_flinger_cblk_t const volatile * ComposerService::getControlBlock() {
|
|
return ComposerService::getInstance().mServerCblk;
|
|
}
|
|
|
|
static inline sp<ISurfaceComposer> getComposerService() {
|
|
return ComposerService::getComposerService();
|
|
}
|
|
|
|
static inline surface_flinger_cblk_t const volatile * get_cblk() {
|
|
return ComposerService::getControlBlock();
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------
|
|
|
|
class Composer : public Singleton<Composer>
|
|
{
|
|
Mutex mLock;
|
|
SortedVector< wp<SurfaceComposerClient> > mActiveConnections;
|
|
SortedVector<sp<SurfaceComposerClient> > mOpenTransactions;
|
|
|
|
Composer() : Singleton<Composer>() {
|
|
}
|
|
|
|
void addClientImpl(const sp<SurfaceComposerClient>& client) {
|
|
Mutex::Autolock _l(mLock);
|
|
mActiveConnections.add(client);
|
|
}
|
|
|
|
void removeClientImpl(const sp<SurfaceComposerClient>& client) {
|
|
Mutex::Autolock _l(mLock);
|
|
mActiveConnections.remove(client);
|
|
}
|
|
|
|
void openGlobalTransactionImpl()
|
|
{
|
|
Mutex::Autolock _l(mLock);
|
|
if (mOpenTransactions.size()) {
|
|
LOGE("openGlobalTransaction() called more than once. skipping.");
|
|
return;
|
|
}
|
|
const size_t N = mActiveConnections.size();
|
|
for (size_t i=0; i<N; i++) {
|
|
sp<SurfaceComposerClient> client(mActiveConnections[i].promote());
|
|
if (client != 0 && mOpenTransactions.indexOf(client) < 0) {
|
|
if (client->openTransaction() == NO_ERROR) {
|
|
mOpenTransactions.add(client);
|
|
} else {
|
|
LOGE("openTransaction on client %p failed", client.get());
|
|
// let it go, it'll fail later when the user
|
|
// tries to do something with the transaction
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void closeGlobalTransactionImpl()
|
|
{
|
|
mLock.lock();
|
|
SortedVector< sp<SurfaceComposerClient> > clients(mOpenTransactions);
|
|
mOpenTransactions.clear();
|
|
mLock.unlock();
|
|
|
|
sp<ISurfaceComposer> sm(getComposerService());
|
|
sm->openGlobalTransaction();
|
|
const size_t N = clients.size();
|
|
for (size_t i=0; i<N; i++) {
|
|
clients[i]->closeTransaction();
|
|
}
|
|
sm->closeGlobalTransaction();
|
|
}
|
|
|
|
friend class Singleton<Composer>;
|
|
|
|
public:
|
|
static void addClient(const sp<SurfaceComposerClient>& client) {
|
|
Composer::getInstance().addClientImpl(client);
|
|
}
|
|
static void removeClient(const sp<SurfaceComposerClient>& client) {
|
|
Composer::getInstance().removeClientImpl(client);
|
|
}
|
|
static void openGlobalTransaction() {
|
|
Composer::getInstance().openGlobalTransactionImpl();
|
|
}
|
|
static void closeGlobalTransaction() {
|
|
Composer::getInstance().closeGlobalTransactionImpl();
|
|
}
|
|
};
|
|
|
|
ANDROID_SINGLETON_STATIC_INSTANCE(Composer);
|
|
|
|
// ---------------------------------------------------------------------------
|
|
|
|
static inline int compare_type( const layer_state_t& lhs,
|
|
const layer_state_t& rhs) {
|
|
if (lhs.surface < rhs.surface) return -1;
|
|
if (lhs.surface > rhs.surface) return 1;
|
|
return 0;
|
|
}
|
|
|
|
SurfaceComposerClient::SurfaceComposerClient()
|
|
: mTransactionOpen(0), mPrebuiltLayerState(0), mStatus(NO_INIT)
|
|
{
|
|
}
|
|
|
|
void SurfaceComposerClient::onFirstRef()
|
|
{
|
|
sp<ISurfaceComposer> sm(getComposerService());
|
|
if (sm != 0) {
|
|
sp<ISurfaceComposerClient> conn = sm->createConnection();
|
|
if (conn != 0) {
|
|
mClient = conn;
|
|
Composer::addClient(this);
|
|
mPrebuiltLayerState = new layer_state_t;
|
|
mStatus = NO_ERROR;
|
|
}
|
|
}
|
|
}
|
|
|
|
SurfaceComposerClient::~SurfaceComposerClient()
|
|
{
|
|
delete mPrebuiltLayerState;
|
|
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(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) {
|
|
Composer::removeClient(this);
|
|
client = mClient; // hold ref while lock is held
|
|
mClient.clear();
|
|
}
|
|
mStatus = NO_INIT;
|
|
}
|
|
|
|
status_t SurfaceComposerClient::getDisplayInfo(
|
|
DisplayID dpy, DisplayInfo* info)
|
|
{
|
|
if (uint32_t(dpy)>=SharedBufferStack::NUM_DISPLAY_MAX)
|
|
return BAD_VALUE;
|
|
|
|
volatile surface_flinger_cblk_t const * cblk = get_cblk();
|
|
volatile display_cblk_t const * dcblk = cblk->displays + dpy;
|
|
|
|
info->w = dcblk->w;
|
|
info->h = dcblk->h;
|
|
info->orientation = dcblk->orientation;
|
|
info->xdpi = dcblk->xdpi;
|
|
info->ydpi = dcblk->ydpi;
|
|
info->fps = dcblk->fps;
|
|
info->density = dcblk->density;
|
|
return getPixelFormatInfo(dcblk->format, &(info->pixelFormatInfo));
|
|
}
|
|
|
|
ssize_t SurfaceComposerClient::getDisplayWidth(DisplayID dpy)
|
|
{
|
|
if (uint32_t(dpy)>=SharedBufferStack::NUM_DISPLAY_MAX)
|
|
return BAD_VALUE;
|
|
volatile surface_flinger_cblk_t const * cblk = get_cblk();
|
|
volatile display_cblk_t const * dcblk = cblk->displays + dpy;
|
|
return dcblk->w;
|
|
}
|
|
|
|
ssize_t SurfaceComposerClient::getDisplayHeight(DisplayID dpy)
|
|
{
|
|
if (uint32_t(dpy)>=SharedBufferStack::NUM_DISPLAY_MAX)
|
|
return BAD_VALUE;
|
|
volatile surface_flinger_cblk_t const * cblk = get_cblk();
|
|
volatile display_cblk_t const * dcblk = cblk->displays + dpy;
|
|
return dcblk->h;
|
|
}
|
|
|
|
ssize_t SurfaceComposerClient::getDisplayOrientation(DisplayID dpy)
|
|
{
|
|
if (uint32_t(dpy)>=SharedBufferStack::NUM_DISPLAY_MAX)
|
|
return BAD_VALUE;
|
|
volatile surface_flinger_cblk_t const * cblk = get_cblk();
|
|
volatile display_cblk_t const * dcblk = cblk->displays + dpy;
|
|
return dcblk->orientation;
|
|
}
|
|
|
|
ssize_t SurfaceComposerClient::getNumberOfDisplays()
|
|
{
|
|
volatile surface_flinger_cblk_t const * cblk = get_cblk();
|
|
uint32_t connected = cblk->connected;
|
|
int n = 0;
|
|
while (connected) {
|
|
if (connected&1) n++;
|
|
connected >>= 1;
|
|
}
|
|
return n;
|
|
}
|
|
|
|
sp<SurfaceControl> SurfaceComposerClient::createSurface(
|
|
int pid,
|
|
DisplayID display,
|
|
uint32_t w,
|
|
uint32_t h,
|
|
PixelFormat format,
|
|
uint32_t flags)
|
|
{
|
|
String8 name;
|
|
const size_t SIZE = 128;
|
|
char buffer[SIZE];
|
|
snprintf(buffer, SIZE, "<pid_%d>", getpid());
|
|
name.append(buffer);
|
|
|
|
return SurfaceComposerClient::createSurface(pid, name, display,
|
|
w, h, format, flags);
|
|
}
|
|
|
|
sp<SurfaceControl> SurfaceComposerClient::createSurface(
|
|
int pid,
|
|
const String8& name,
|
|
DisplayID display,
|
|
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, pid, name,
|
|
display, w, h, format, flags);
|
|
if (surface != 0) {
|
|
result = new SurfaceControl(this, surface, data, w, h, format, flags);
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
status_t SurfaceComposerClient::destroySurface(SurfaceID sid)
|
|
{
|
|
if (mStatus != NO_ERROR)
|
|
return mStatus;
|
|
|
|
// it's okay to destroy a surface while a transaction is open,
|
|
// (transactions really are a client-side concept)
|
|
// however, this indicates probably a misuse of the API or a bug
|
|
// in the client code.
|
|
LOGW_IF(mTransactionOpen,
|
|
"Destroying surface while a transaction is open. "
|
|
"Client %p: destroying surface %d, mTransactionOpen=%d",
|
|
this, sid, mTransactionOpen);
|
|
|
|
status_t err = mClient->destroySurface(sid);
|
|
return err;
|
|
}
|
|
|
|
void SurfaceComposerClient::openGlobalTransaction()
|
|
{
|
|
Composer::openGlobalTransaction();
|
|
}
|
|
|
|
void SurfaceComposerClient::closeGlobalTransaction()
|
|
{
|
|
Composer::closeGlobalTransaction();
|
|
}
|
|
|
|
status_t SurfaceComposerClient::freezeDisplay(DisplayID dpy, uint32_t flags)
|
|
{
|
|
sp<ISurfaceComposer> sm(getComposerService());
|
|
return sm->freezeDisplay(dpy, flags);
|
|
}
|
|
|
|
status_t SurfaceComposerClient::unfreezeDisplay(DisplayID dpy, uint32_t flags)
|
|
{
|
|
sp<ISurfaceComposer> sm(getComposerService());
|
|
return sm->unfreezeDisplay(dpy, flags);
|
|
}
|
|
|
|
int SurfaceComposerClient::setOrientation(DisplayID dpy,
|
|
int orientation, uint32_t flags)
|
|
{
|
|
sp<ISurfaceComposer> sm(getComposerService());
|
|
return sm->setOrientation(dpy, orientation, flags);
|
|
}
|
|
|
|
status_t SurfaceComposerClient::openTransaction()
|
|
{
|
|
if (mStatus != NO_ERROR)
|
|
return mStatus;
|
|
Mutex::Autolock _l(mLock);
|
|
mTransactionOpen++;
|
|
return NO_ERROR;
|
|
}
|
|
|
|
status_t SurfaceComposerClient::closeTransaction()
|
|
{
|
|
if (mStatus != NO_ERROR)
|
|
return mStatus;
|
|
|
|
Mutex::Autolock _l(mLock);
|
|
if (mTransactionOpen <= 0) {
|
|
LOGE( "closeTransaction (client %p, mTransactionOpen=%d) "
|
|
"called more times than openTransaction()",
|
|
this, mTransactionOpen);
|
|
return INVALID_OPERATION;
|
|
}
|
|
|
|
if (mTransactionOpen >= 2) {
|
|
mTransactionOpen--;
|
|
return NO_ERROR;
|
|
}
|
|
|
|
mTransactionOpen = 0;
|
|
const ssize_t count = mStates.size();
|
|
if (count) {
|
|
mClient->setState(count, mStates.array());
|
|
mStates.clear();
|
|
}
|
|
return NO_ERROR;
|
|
}
|
|
|
|
layer_state_t* SurfaceComposerClient::get_state_l(SurfaceID index)
|
|
{
|
|
// API usage error, do nothing.
|
|
if (mTransactionOpen<=0) {
|
|
LOGE("Not in transaction (client=%p, SurfaceID=%d, mTransactionOpen=%d",
|
|
this, int(index), mTransactionOpen);
|
|
return 0;
|
|
}
|
|
|
|
// use mPrebuiltLayerState just to find out if we already have it
|
|
layer_state_t& dummy(*mPrebuiltLayerState);
|
|
dummy.surface = index;
|
|
ssize_t i = mStates.indexOf(dummy);
|
|
if (i < 0) {
|
|
// we don't have it, add an initialized layer_state to our list
|
|
i = mStates.add(dummy);
|
|
}
|
|
return mStates.editArray() + i;
|
|
}
|
|
|
|
layer_state_t* SurfaceComposerClient::lockLayerState(SurfaceID id)
|
|
{
|
|
layer_state_t* s;
|
|
mLock.lock();
|
|
s = get_state_l(id);
|
|
if (!s) mLock.unlock();
|
|
return s;
|
|
}
|
|
|
|
void SurfaceComposerClient::unlockLayerState()
|
|
{
|
|
mLock.unlock();
|
|
}
|
|
|
|
status_t SurfaceComposerClient::setPosition(SurfaceID id, int32_t x, int32_t y)
|
|
{
|
|
layer_state_t* s = lockLayerState(id);
|
|
if (!s) return BAD_INDEX;
|
|
s->what |= ISurfaceComposer::ePositionChanged;
|
|
s->x = x;
|
|
s->y = y;
|
|
unlockLayerState();
|
|
return NO_ERROR;
|
|
}
|
|
|
|
status_t SurfaceComposerClient::setSize(SurfaceID id, uint32_t w, uint32_t h)
|
|
{
|
|
layer_state_t* s = lockLayerState(id);
|
|
if (!s) return BAD_INDEX;
|
|
s->what |= ISurfaceComposer::eSizeChanged;
|
|
s->w = w;
|
|
s->h = h;
|
|
unlockLayerState();
|
|
return NO_ERROR;
|
|
}
|
|
|
|
status_t SurfaceComposerClient::setLayer(SurfaceID id, int32_t z)
|
|
{
|
|
layer_state_t* s = lockLayerState(id);
|
|
if (!s) return BAD_INDEX;
|
|
s->what |= ISurfaceComposer::eLayerChanged;
|
|
s->z = z;
|
|
unlockLayerState();
|
|
return NO_ERROR;
|
|
}
|
|
|
|
status_t SurfaceComposerClient::hide(SurfaceID id)
|
|
{
|
|
return setFlags(id, ISurfaceComposer::eLayerHidden,
|
|
ISurfaceComposer::eLayerHidden);
|
|
}
|
|
|
|
status_t SurfaceComposerClient::show(SurfaceID id, int32_t)
|
|
{
|
|
return setFlags(id, 0, ISurfaceComposer::eLayerHidden);
|
|
}
|
|
|
|
status_t SurfaceComposerClient::freeze(SurfaceID id)
|
|
{
|
|
return setFlags(id, ISurfaceComposer::eLayerFrozen,
|
|
ISurfaceComposer::eLayerFrozen);
|
|
}
|
|
|
|
status_t SurfaceComposerClient::unfreeze(SurfaceID id)
|
|
{
|
|
return setFlags(id, 0, ISurfaceComposer::eLayerFrozen);
|
|
}
|
|
|
|
status_t SurfaceComposerClient::setFlags(SurfaceID id,
|
|
uint32_t flags, uint32_t mask)
|
|
{
|
|
layer_state_t* s = lockLayerState(id);
|
|
if (!s) return BAD_INDEX;
|
|
s->what |= ISurfaceComposer::eVisibilityChanged;
|
|
s->flags &= ~mask;
|
|
s->flags |= (flags & mask);
|
|
s->mask |= mask;
|
|
unlockLayerState();
|
|
return NO_ERROR;
|
|
}
|
|
|
|
status_t SurfaceComposerClient::setTransparentRegionHint(
|
|
SurfaceID id, const Region& transparentRegion)
|
|
{
|
|
layer_state_t* s = lockLayerState(id);
|
|
if (!s) return BAD_INDEX;
|
|
s->what |= ISurfaceComposer::eTransparentRegionChanged;
|
|
s->transparentRegion = transparentRegion;
|
|
unlockLayerState();
|
|
return NO_ERROR;
|
|
}
|
|
|
|
status_t SurfaceComposerClient::setAlpha(SurfaceID id, float alpha)
|
|
{
|
|
layer_state_t* s = lockLayerState(id);
|
|
if (!s) return BAD_INDEX;
|
|
s->what |= ISurfaceComposer::eAlphaChanged;
|
|
s->alpha = alpha;
|
|
unlockLayerState();
|
|
return NO_ERROR;
|
|
}
|
|
|
|
status_t SurfaceComposerClient::setMatrix(
|
|
SurfaceID id,
|
|
float dsdx, float dtdx,
|
|
float dsdy, float dtdy )
|
|
{
|
|
layer_state_t* s = lockLayerState(id);
|
|
if (!s) return BAD_INDEX;
|
|
s->what |= ISurfaceComposer::eMatrixChanged;
|
|
layer_state_t::matrix22_t matrix;
|
|
matrix.dsdx = dsdx;
|
|
matrix.dtdx = dtdx;
|
|
matrix.dsdy = dsdy;
|
|
matrix.dtdy = dtdy;
|
|
s->matrix = matrix;
|
|
unlockLayerState();
|
|
return NO_ERROR;
|
|
}
|
|
|
|
status_t SurfaceComposerClient::setFreezeTint(SurfaceID id, uint32_t tint)
|
|
{
|
|
layer_state_t* s = lockLayerState(id);
|
|
if (!s) return BAD_INDEX;
|
|
s->what |= ISurfaceComposer::eFreezeTintChanged;
|
|
s->tint = tint;
|
|
unlockLayerState();
|
|
return NO_ERROR;
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
|
|
ScreenshotClient::ScreenshotClient()
|
|
: mWidth(0), mHeight(0), mFormat(PIXEL_FORMAT_NONE) {
|
|
}
|
|
|
|
status_t ScreenshotClient::update() {
|
|
sp<ISurfaceComposer> s(ComposerService::getComposerService());
|
|
if (s == NULL) return NO_INIT;
|
|
mHeap = 0;
|
|
return s->captureScreen(0, &mHeap,
|
|
&mWidth, &mHeight, &mFormat, 0, 0,
|
|
0, -1UL);
|
|
}
|
|
|
|
status_t ScreenshotClient::update(uint32_t reqWidth, uint32_t reqHeight) {
|
|
sp<ISurfaceComposer> s(ComposerService::getComposerService());
|
|
if (s == NULL) return NO_INIT;
|
|
mHeap = 0;
|
|
return s->captureScreen(0, &mHeap,
|
|
&mWidth, &mHeight, &mFormat, reqWidth, reqHeight,
|
|
0, -1UL);
|
|
}
|
|
|
|
status_t ScreenshotClient::update(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(0, &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
|
|
|