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replicant-frameworks_native/libs/gui/Surface.cpp
Mathias Agopian 8f9dbf9e13 move lock/unlock implementaion outside of Surface into SurfaceTextureClient 
This makes ANativeWindow_lock/ANativeWindow_unlockAndPost work
with ANativeWindows implemented by Surface and SurfaceTextureClient.

Also, Surface now inherits directly from SurfaceTextureClient.

Bug: 5003724
Change-Id: I9f285877c7bae9a262e9a7af91c2bae78804b2ef
2011-07-15 17:47:08 -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/IMemory.h>
#include <binder/IPCThreadState.h>
#include <gui/SurfaceTextureClient.h>
#include <ui/DisplayInfo.h>
#include <ui/GraphicBuffer.h>
#include <ui/GraphicBufferMapper.h>
#include <ui/GraphicLog.h>
#include <ui/Rect.h>
#include <surfaceflinger/ISurface.h>
#include <surfaceflinger/ISurfaceComposer.h>
#include <surfaceflinger/Surface.h>
#include <surfaceflinger/SurfaceComposerClient.h>
#include <private/surfaceflinger/LayerState.h>
namespace android {
// ============================================================================
// SurfaceControl
// ============================================================================
SurfaceControl::SurfaceControl(
const sp<SurfaceComposerClient>& client,
const sp<ISurface>& surface,
const ISurfaceComposerClient::surface_data_t& data,
uint32_t w, uint32_t h, PixelFormat format, uint32_t flags)
: mClient(client), mSurface(surface),
mToken(data.token), mIdentity(data.identity),
mWidth(data.width), mHeight(data.height), mFormat(data.format),
mFlags(flags)
{
}
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;
uint32_t width = 0;
uint32_t height = 0;
uint32_t format = 0;
uint32_t flags = 0;
if (SurfaceControl::isValid(control)) {
sur = control->mSurface;
identity = control->mIdentity;
width = control->mWidth;
height = control->mHeight;
format = control->mFormat;
flags = control->mFlags;
}
parcel->writeStrongBinder(sur!=0 ? sur->asBinder() : NULL);
parcel->writeInt32(identity);
parcel->writeInt32(width);
parcel->writeInt32(height);
parcel->writeInt32(format);
parcel->writeInt32(flags);
return NO_ERROR;
}
sp<Surface> SurfaceControl::getSurface() const
{
Mutex::Autolock _l(mLock);
if (mSurfaceData == 0) {
mSurfaceData = new Surface(const_cast<SurfaceControl*>(this));
}
return mSurfaceData;
}
// ============================================================================
// Surface
// ============================================================================
// ---------------------------------------------------------------------------
Surface::Surface(const sp<SurfaceControl>& surface)
: SurfaceTextureClient(),
mInitCheck(NO_INIT),
mSurface(surface->mSurface),
mIdentity(surface->mIdentity),
mFormat(surface->mFormat), mFlags(surface->mFlags),
mWidth(surface->mWidth), mHeight(surface->mHeight)
{
init();
}
Surface::Surface(const Parcel& parcel, const sp<IBinder>& ref)
: SurfaceTextureClient(),
mInitCheck(NO_INIT)
{
mSurface = interface_cast<ISurface>(ref);
mIdentity = parcel.readInt32();
mWidth = parcel.readInt32();
mHeight = parcel.readInt32();
mFormat = parcel.readInt32();
mFlags = parcel.readInt32();
init();
}
status_t Surface::writeToParcel(
const sp<Surface>& surface, Parcel* parcel)
{
sp<ISurface> sur;
uint32_t identity = 0;
uint32_t width = 0;
uint32_t height = 0;
uint32_t format = 0;
uint32_t flags = 0;
if (Surface::isValid(surface)) {
sur = surface->mSurface;
identity = surface->mIdentity;
width = surface->mWidth;
height = surface->mHeight;
format = surface->mFormat;
flags = surface->mFlags;
} else if (surface != 0 && surface->mSurface != 0) {
LOGW("Parceling invalid surface with non-NULL ISurface as NULL: "
"mSurface = %p, mIdentity = %d, mWidth = %d, mHeight = %d, "
"mFormat = %d, mFlags = 0x%08x, mInitCheck = %d",
surface->mSurface.get(), surface->mIdentity, surface->mWidth,
surface->mHeight, surface->mFormat, surface->mFlags,
surface->mInitCheck);
}
parcel->writeStrongBinder(sur!=0 ? sur->asBinder() : NULL);
parcel->writeInt32(identity);
parcel->writeInt32(width);
parcel->writeInt32(height);
parcel->writeInt32(format);
parcel->writeInt32(flags);
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);
}
if (surface->mSurface == 0) {
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()
{
if (mSurface != NULL) {
sp<ISurfaceTexture> surfaceTexture(mSurface->getSurfaceTexture());
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;
if (surfaceTexture != NULL) {
mInitCheck = NO_ERROR;
}
}
}
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 mInitCheck == NO_ERROR;
}
status_t Surface::validate(bool inCancelBuffer) const
{
// check that we initialized ourself properly
if (mInitCheck != NO_ERROR) {
LOGE("invalid token (identity=%u)", mIdentity);
return mInitCheck;
}
return NO_ERROR;
}
sp<ISurfaceTexture> Surface::getSurfaceTexture() {
return mSurface != NULL ? mSurface->getSurfaceTexture() : NULL;
}
sp<IBinder> Surface::asBinder() const {
return mSurface!=0 ? mSurface->asBinder() : 0;
}
// ----------------------------------------------------------------------------
int Surface::query(int what, int* value) const {
switch (what) {
case NATIVE_WINDOW_QUEUES_TO_WINDOW_COMPOSER:
// TODO: this is not needed anymore
*value = 1;
return NO_ERROR;
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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