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replicant-frameworks_native/libs/gui/Surface.cpp
Jamie Gennis 582270d69d SurfaceTexture: fix queues-to-composer 
This change fixes the NATIVE_WINDOW_QUEUES_TO_WINDOW_COMPOSER query of
Surface and SurfaceTextureClient.  Surface now uses the inherited
SurfaceTextureClient implementation of this query.  SurfaceTextureClient
now queries SurfaceFlinger to determine whether buffers that are queued
to its ISurfaceTexture will be sent to SurfaceFlinger (as opposed to
some other process).

Change-Id: Iff187e72f30d454229f07f896b438198978270a8
2011-08-17 18:19:00 -07:00

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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 "Surface"
#include <stdint.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <utils/CallStack.h>
#include <utils/Errors.h>
#include <utils/Log.h>
#include <utils/threads.h>
#include <binder/IPCThreadState.h>
#include <gui/SurfaceTextureClient.h>
#include <ui/DisplayInfo.h>
#include <ui/GraphicBuffer.h>
#include <ui/Rect.h>
#include <surfaceflinger/ISurface.h>
#include <surfaceflinger/ISurfaceComposer.h>
#include <surfaceflinger/Surface.h>
#include <surfaceflinger/SurfaceComposerClient.h>
namespace android {
// ============================================================================
// SurfaceControl
// ============================================================================
SurfaceControl::SurfaceControl(
const sp<SurfaceComposerClient>& client,
const sp<ISurface>& surface,
const ISurfaceComposerClient::surface_data_t& data)
: mClient(client), mSurface(surface),
mToken(data.token), mIdentity(data.identity)
{
}
SurfaceControl::~SurfaceControl()
{
destroy();
}
void SurfaceControl::destroy()
{
if (isValid()) {
mClient->destroySurface(mToken);
}
// clear all references and trigger an IPC now, to make sure things
// happen without delay, since these resources are quite heavy.
mClient.clear();
mSurface.clear();
IPCThreadState::self()->flushCommands();
}
void SurfaceControl::clear()
{
// here, the window manager tells us explicitly that we should destroy
// the surface's resource. Soon after this call, it will also release
// its last reference (which will call the dtor); however, it is possible
// that a client living in the same process still holds references which
// would delay the call to the dtor -- that is why we need this explicit
// "clear()" call.
destroy();
}
bool SurfaceControl::isSameSurface(
const sp<SurfaceControl>& lhs, const sp<SurfaceControl>& rhs)
{
if (lhs == 0 || rhs == 0)
return false;
return lhs->mSurface->asBinder() == rhs->mSurface->asBinder();
}
status_t SurfaceControl::setLayer(int32_t layer) {
status_t err = validate();
if (err < 0) return err;
const sp<SurfaceComposerClient>& client(mClient);
return client->setLayer(mToken, layer);
}
status_t SurfaceControl::setPosition(int32_t x, int32_t y) {
status_t err = validate();
if (err < 0) return err;
const sp<SurfaceComposerClient>& client(mClient);
return client->setPosition(mToken, x, y);
}
status_t SurfaceControl::setSize(uint32_t w, uint32_t h) {
status_t err = validate();
if (err < 0) return err;
const sp<SurfaceComposerClient>& client(mClient);
return client->setSize(mToken, w, h);
}
status_t SurfaceControl::hide() {
status_t err = validate();
if (err < 0) return err;
const sp<SurfaceComposerClient>& client(mClient);
return client->hide(mToken);
}
status_t SurfaceControl::show(int32_t layer) {
status_t err = validate();
if (err < 0) return err;
const sp<SurfaceComposerClient>& client(mClient);
return client->show(mToken, layer);
}
status_t SurfaceControl::freeze() {
status_t err = validate();
if (err < 0) return err;
const sp<SurfaceComposerClient>& client(mClient);
return client->freeze(mToken);
}
status_t SurfaceControl::unfreeze() {
status_t err = validate();
if (err < 0) return err;
const sp<SurfaceComposerClient>& client(mClient);
return client->unfreeze(mToken);
}
status_t SurfaceControl::setFlags(uint32_t flags, uint32_t mask) {
status_t err = validate();
if (err < 0) return err;
const sp<SurfaceComposerClient>& client(mClient);
return client->setFlags(mToken, flags, mask);
}
status_t SurfaceControl::setTransparentRegionHint(const Region& transparent) {
status_t err = validate();
if (err < 0) return err;
const sp<SurfaceComposerClient>& client(mClient);
return client->setTransparentRegionHint(mToken, transparent);
}
status_t SurfaceControl::setAlpha(float alpha) {
status_t err = validate();
if (err < 0) return err;
const sp<SurfaceComposerClient>& client(mClient);
return client->setAlpha(mToken, alpha);
}
status_t SurfaceControl::setMatrix(float dsdx, float dtdx, float dsdy, float dtdy) {
status_t err = validate();
if (err < 0) return err;
const sp<SurfaceComposerClient>& client(mClient);
return client->setMatrix(mToken, dsdx, dtdx, dsdy, dtdy);
}
status_t SurfaceControl::setFreezeTint(uint32_t tint) {
status_t err = validate();
if (err < 0) return err;
const sp<SurfaceComposerClient>& client(mClient);
return client->setFreezeTint(mToken, tint);
}
status_t SurfaceControl::validate() const
{
if (mToken<0 || mClient==0) {
LOGE("invalid token (%d, identity=%u) or client (%p)",
mToken, mIdentity, mClient.get());
return NO_INIT;
}
return NO_ERROR;
}
status_t SurfaceControl::writeSurfaceToParcel(
const sp<SurfaceControl>& control, Parcel* parcel)
{
sp<ISurface> sur;
uint32_t identity = 0;
if (SurfaceControl::isValid(control)) {
sur = control->mSurface;
identity = control->mIdentity;
}
parcel->writeStrongBinder(sur!=0 ? sur->asBinder() : NULL);
parcel->writeStrongBinder(NULL); // NULL ISurfaceTexture in this case.
parcel->writeInt32(identity);
return NO_ERROR;
}
sp<Surface> SurfaceControl::getSurface() const
{
Mutex::Autolock _l(mLock);
if (mSurfaceData == 0) {
sp<SurfaceControl> surface_control(const_cast<SurfaceControl*>(this));
mSurfaceData = new Surface(surface_control);
}
return mSurfaceData;
}
// ============================================================================
// Surface
// ============================================================================
// ---------------------------------------------------------------------------
Surface::Surface(const sp<SurfaceControl>& surface)
: SurfaceTextureClient(),
mSurface(surface->mSurface),
mIdentity(surface->mIdentity)
{
sp<ISurfaceTexture> st;
if (mSurface != NULL) {
st = mSurface->getSurfaceTexture();
}
init(st);
}
Surface::Surface(const Parcel& parcel, const sp<IBinder>& ref)
: SurfaceTextureClient()
{
mSurface = interface_cast<ISurface>(ref);
sp<IBinder> st_binder(parcel.readStrongBinder());
sp<ISurfaceTexture> st;
if (st_binder != NULL) {
st = interface_cast<ISurfaceTexture>(st_binder);
} else if (mSurface != NULL) {
st = mSurface->getSurfaceTexture();
}
mIdentity = parcel.readInt32();
init(st);
}
Surface::Surface(const sp<ISurfaceTexture>& st)
: SurfaceTextureClient(),
mSurface(NULL),
mIdentity(0)
{
init(st);
}
status_t Surface::writeToParcel(
const sp<Surface>& surface, Parcel* parcel)
{
sp<ISurface> sur;
sp<ISurfaceTexture> st;
uint32_t identity = 0;
if (Surface::isValid(surface)) {
sur = surface->mSurface;
st = surface->getISurfaceTexture();
identity = surface->mIdentity;
} else if (surface != 0 &&
(surface->mSurface != NULL ||
surface->getISurfaceTexture() != NULL)) {
LOGE("Parceling invalid surface with non-NULL ISurface/ISurfaceTexture as NULL: "
"mSurface = %p, surfaceTexture = %p, mIdentity = %d, ",
surface->mSurface.get(), surface->getISurfaceTexture().get(),
surface->mIdentity);
}
parcel->writeStrongBinder(sur != NULL ? sur->asBinder() : NULL);
parcel->writeStrongBinder(st != NULL ? st->asBinder() : NULL);
parcel->writeInt32(identity);
return NO_ERROR;
}
Mutex Surface::sCachedSurfacesLock;
DefaultKeyedVector<wp<IBinder>, wp<Surface> > Surface::sCachedSurfaces;
sp<Surface> Surface::readFromParcel(const Parcel& data) {
Mutex::Autolock _l(sCachedSurfacesLock);
sp<IBinder> binder(data.readStrongBinder());
sp<Surface> surface = sCachedSurfaces.valueFor(binder).promote();
if (surface == 0) {
surface = new Surface(data, binder);
sCachedSurfaces.add(binder, surface);
} else {
// The Surface was found in the cache, but we still should clear any
// remaining data from the parcel.
data.readStrongBinder(); // ISurfaceTexture
data.readInt32(); // identity
}
if (surface->mSurface == NULL && surface->getISurfaceTexture() == NULL) {
surface = 0;
}
cleanCachedSurfacesLocked();
return surface;
}
// Remove the stale entries from the surface cache. This should only be called
// with sCachedSurfacesLock held.
void Surface::cleanCachedSurfacesLocked() {
for (int i = sCachedSurfaces.size()-1; i >= 0; --i) {
wp<Surface> s(sCachedSurfaces.valueAt(i));
if (s == 0 || s.promote() == 0) {
sCachedSurfaces.removeItemsAt(i);
}
}
}
void Surface::init(const sp<ISurfaceTexture>& surfaceTexture)
{
if (mSurface != NULL || surfaceTexture != NULL) {
LOGE_IF(surfaceTexture==0, "got a NULL ISurfaceTexture from ISurface");
if (surfaceTexture != NULL) {
setISurfaceTexture(surfaceTexture);
setUsage(GraphicBuffer::USAGE_HW_RENDER);
}
DisplayInfo dinfo;
SurfaceComposerClient::getDisplayInfo(0, &dinfo);
const_cast<float&>(ANativeWindow::xdpi) = dinfo.xdpi;
const_cast<float&>(ANativeWindow::ydpi) = dinfo.ydpi;
const_cast<uint32_t&>(ANativeWindow::flags) = 0;
}
}
Surface::~Surface()
{
// clear all references and trigger an IPC now, to make sure things
// happen without delay, since these resources are quite heavy.
mSurface.clear();
IPCThreadState::self()->flushCommands();
}
bool Surface::isValid() {
return getISurfaceTexture() != NULL;
}
sp<ISurfaceTexture> Surface::getSurfaceTexture() {
return getISurfaceTexture();
}
sp<IBinder> Surface::asBinder() const {
return mSurface!=0 ? mSurface->asBinder() : 0;
}
// ----------------------------------------------------------------------------
int Surface::query(int what, int* value) const {
switch (what) {
case NATIVE_WINDOW_CONCRETE_TYPE:
*value = NATIVE_WINDOW_SURFACE;
return NO_ERROR;
}
return SurfaceTextureClient::query(what, value);
}
// ----------------------------------------------------------------------------
status_t Surface::lock(SurfaceInfo* other, Region* dirtyIn) {
ANativeWindow_Buffer outBuffer;
ARect temp;
ARect* inOutDirtyBounds = NULL;
if (dirtyIn) {
temp = dirtyIn->getBounds();
inOutDirtyBounds = &temp;
}
status_t err = SurfaceTextureClient::lock(&outBuffer, inOutDirtyBounds);
if (err == NO_ERROR) {
other->w = uint32_t(outBuffer.width);
other->h = uint32_t(outBuffer.height);
other->s = uint32_t(outBuffer.stride);
other->usage = GRALLOC_USAGE_SW_READ_OFTEN | GRALLOC_USAGE_SW_WRITE_OFTEN;
other->format = uint32_t(outBuffer.format);
other->bits = outBuffer.bits;
}
return err;
}
status_t Surface::unlockAndPost() {
return SurfaceTextureClient::unlockAndPost();
}
// ----------------------------------------------------------------------------
}; // namespace android
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