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replicant-frameworks_native/libs/gui/IGraphicBufferConsumer.cpp
Marco Nelissen 2ea926bda2 Replace IInterface::asBinder() with a static 
so we can do NULL checks again, and update calls to IInterface::asBinder()
to use the new static version.

Change-Id: Ia7b10eb38ca55b72278bfd33d3bf647f338b4e6a
2014-11-14 14:01:29 -08:00

554 lines
19 KiB
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/*
* Copyright (C) 2013 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.
*/
#include <stdint.h>
#include <sys/types.h>
#include <utils/Errors.h>
#include <utils/NativeHandle.h>
#include <binder/Parcel.h>
#include <binder/IInterface.h>
#include <gui/IConsumerListener.h>
#include <gui/IGraphicBufferConsumer.h>
#include <ui/GraphicBuffer.h>
#include <ui/Fence.h>
#include <system/window.h>
namespace android {
// ---------------------------------------------------------------------------
IGraphicBufferConsumer::BufferItem::BufferItem() :
mTransform(0),
mScalingMode(NATIVE_WINDOW_SCALING_MODE_FREEZE),
mTimestamp(0),
mIsAutoTimestamp(false),
mFrameNumber(0),
mBuf(INVALID_BUFFER_SLOT),
mIsDroppable(false),
mAcquireCalled(false),
mTransformToDisplayInverse(false) {
mCrop.makeInvalid();
}
size_t IGraphicBufferConsumer::BufferItem::getPodSize() const {
size_t c = sizeof(mCrop) +
sizeof(mTransform) +
sizeof(mScalingMode) +
sizeof(mTimestamp) +
sizeof(mIsAutoTimestamp) +
sizeof(mFrameNumber) +
sizeof(mBuf) +
sizeof(mIsDroppable) +
sizeof(mAcquireCalled) +
sizeof(mTransformToDisplayInverse);
return c;
}
size_t IGraphicBufferConsumer::BufferItem::getFlattenedSize() const {
size_t c = 0;
if (mGraphicBuffer != 0) {
c += mGraphicBuffer->getFlattenedSize();
c = FlattenableUtils::align<4>(c);
}
if (mFence != 0) {
c += mFence->getFlattenedSize();
c = FlattenableUtils::align<4>(c);
}
return sizeof(int32_t) + c + getPodSize();
}
size_t IGraphicBufferConsumer::BufferItem::getFdCount() const {
size_t c = 0;
if (mGraphicBuffer != 0) {
c += mGraphicBuffer->getFdCount();
}
if (mFence != 0) {
c += mFence->getFdCount();
}
return c;
}
static void writeBoolAsInt(void*& buffer, size_t& size, bool b) {
FlattenableUtils::write(buffer, size, static_cast<int32_t>(b));
}
static bool readBoolFromInt(void const*& buffer, size_t& size) {
int32_t i;
FlattenableUtils::read(buffer, size, i);
return static_cast<bool>(i);
}
status_t IGraphicBufferConsumer::BufferItem::flatten(
void*& buffer, size_t& size, int*& fds, size_t& count) const {
// make sure we have enough space
if (size < BufferItem::getFlattenedSize()) {
return NO_MEMORY;
}
// content flags are stored first
uint32_t& flags = *static_cast<uint32_t*>(buffer);
// advance the pointer
FlattenableUtils::advance(buffer, size, sizeof(uint32_t));
flags = 0;
if (mGraphicBuffer != 0) {
status_t err = mGraphicBuffer->flatten(buffer, size, fds, count);
if (err) return err;
size -= FlattenableUtils::align<4>(buffer);
flags |= 1;
}
if (mFence != 0) {
status_t err = mFence->flatten(buffer, size, fds, count);
if (err) return err;
size -= FlattenableUtils::align<4>(buffer);
flags |= 2;
}
// check we have enough space (in case flattening the fence/graphicbuffer lied to us)
if (size < getPodSize()) {
return NO_MEMORY;
}
FlattenableUtils::write(buffer, size, mCrop);
FlattenableUtils::write(buffer, size, mTransform);
FlattenableUtils::write(buffer, size, mScalingMode);
FlattenableUtils::write(buffer, size, mTimestamp);
writeBoolAsInt(buffer, size, mIsAutoTimestamp);
FlattenableUtils::write(buffer, size, mFrameNumber);
FlattenableUtils::write(buffer, size, mBuf);
writeBoolAsInt(buffer, size, mIsDroppable);
writeBoolAsInt(buffer, size, mAcquireCalled);
writeBoolAsInt(buffer, size, mTransformToDisplayInverse);
return NO_ERROR;
}
status_t IGraphicBufferConsumer::BufferItem::unflatten(
void const*& buffer, size_t& size, int const*& fds, size_t& count) {
if (size < sizeof(uint32_t))
return NO_MEMORY;
uint32_t flags = 0;
FlattenableUtils::read(buffer, size, flags);
if (flags & 1) {
mGraphicBuffer = new GraphicBuffer();
status_t err = mGraphicBuffer->unflatten(buffer, size, fds, count);
if (err) return err;
size -= FlattenableUtils::align<4>(buffer);
}
if (flags & 2) {
mFence = new Fence();
status_t err = mFence->unflatten(buffer, size, fds, count);
if (err) return err;
size -= FlattenableUtils::align<4>(buffer);
}
// check we have enough space
if (size < getPodSize()) {
return NO_MEMORY;
}
FlattenableUtils::read(buffer, size, mCrop);
FlattenableUtils::read(buffer, size, mTransform);
FlattenableUtils::read(buffer, size, mScalingMode);
FlattenableUtils::read(buffer, size, mTimestamp);
mIsAutoTimestamp = readBoolFromInt(buffer, size);
FlattenableUtils::read(buffer, size, mFrameNumber);
FlattenableUtils::read(buffer, size, mBuf);
mIsDroppable = readBoolFromInt(buffer, size);
mAcquireCalled = readBoolFromInt(buffer, size);
mTransformToDisplayInverse = readBoolFromInt(buffer, size);
return NO_ERROR;
}
// ---------------------------------------------------------------------------
enum {
ACQUIRE_BUFFER = IBinder::FIRST_CALL_TRANSACTION,
DETACH_BUFFER,
ATTACH_BUFFER,
RELEASE_BUFFER,
CONSUMER_CONNECT,
CONSUMER_DISCONNECT,
GET_RELEASED_BUFFERS,
SET_DEFAULT_BUFFER_SIZE,
SET_DEFAULT_MAX_BUFFER_COUNT,
DISABLE_ASYNC_BUFFER,
SET_MAX_ACQUIRED_BUFFER_COUNT,
SET_CONSUMER_NAME,
SET_DEFAULT_BUFFER_FORMAT,
SET_CONSUMER_USAGE_BITS,
SET_TRANSFORM_HINT,
GET_SIDEBAND_STREAM,
DUMP,
};
class BpGraphicBufferConsumer : public BpInterface<IGraphicBufferConsumer>
{
public:
BpGraphicBufferConsumer(const sp<IBinder>& impl)
: BpInterface<IGraphicBufferConsumer>(impl)
{
}
virtual status_t acquireBuffer(BufferItem *buffer, nsecs_t presentWhen) {
Parcel data, reply;
data.writeInterfaceToken(IGraphicBufferConsumer::getInterfaceDescriptor());
data.writeInt64(presentWhen);
status_t result = remote()->transact(ACQUIRE_BUFFER, data, &reply);
if (result != NO_ERROR) {
return result;
}
result = reply.read(*buffer);
if (result != NO_ERROR) {
return result;
}
return reply.readInt32();
}
virtual status_t detachBuffer(int slot) {
Parcel data, reply;
data.writeInterfaceToken(IGraphicBufferConsumer::getInterfaceDescriptor());
data.writeInt32(slot);
status_t result = remote()->transact(DETACH_BUFFER, data, &reply);
if (result != NO_ERROR) {
return result;
}
result = reply.readInt32();
return result;
}
virtual status_t attachBuffer(int* slot, const sp<GraphicBuffer>& buffer) {
Parcel data, reply;
data.writeInterfaceToken(IGraphicBufferConsumer::getInterfaceDescriptor());
data.write(*buffer.get());
status_t result = remote()->transact(ATTACH_BUFFER, data, &reply);
if (result != NO_ERROR) {
return result;
}
*slot = reply.readInt32();
result = reply.readInt32();
return result;
}
virtual status_t releaseBuffer(int buf, uint64_t frameNumber,
EGLDisplay display __attribute__((unused)), EGLSyncKHR fence __attribute__((unused)),
const sp<Fence>& releaseFence) {
Parcel data, reply;
data.writeInterfaceToken(IGraphicBufferConsumer::getInterfaceDescriptor());
data.writeInt32(buf);
data.writeInt64(frameNumber);
data.write(*releaseFence);
status_t result = remote()->transact(RELEASE_BUFFER, data, &reply);
if (result != NO_ERROR) {
return result;
}
return reply.readInt32();
}
virtual status_t consumerConnect(const sp<IConsumerListener>& consumer, bool controlledByApp) {
Parcel data, reply;
data.writeInterfaceToken(IGraphicBufferConsumer::getInterfaceDescriptor());
data.writeStrongBinder(IInterface::asBinder(consumer));
data.writeInt32(controlledByApp);
status_t result = remote()->transact(CONSUMER_CONNECT, data, &reply);
if (result != NO_ERROR) {
return result;
}
return reply.readInt32();
}
virtual status_t consumerDisconnect() {
Parcel data, reply;
data.writeInterfaceToken(IGraphicBufferConsumer::getInterfaceDescriptor());
status_t result = remote()->transact(CONSUMER_DISCONNECT, data, &reply);
if (result != NO_ERROR) {
return result;
}
return reply.readInt32();
}
virtual status_t getReleasedBuffers(uint64_t* slotMask) {
Parcel data, reply;
if (slotMask == NULL) {
ALOGE("getReleasedBuffers: slotMask must not be NULL");
return BAD_VALUE;
}
data.writeInterfaceToken(IGraphicBufferConsumer::getInterfaceDescriptor());
status_t result = remote()->transact(GET_RELEASED_BUFFERS, data, &reply);
if (result != NO_ERROR) {
return result;
}
*slotMask = reply.readInt64();
return reply.readInt32();
}
virtual status_t setDefaultBufferSize(uint32_t w, uint32_t h) {
Parcel data, reply;
data.writeInterfaceToken(IGraphicBufferConsumer::getInterfaceDescriptor());
data.writeInt32(w);
data.writeInt32(h);
status_t result = remote()->transact(SET_DEFAULT_BUFFER_SIZE, data, &reply);
if (result != NO_ERROR) {
return result;
}
return reply.readInt32();
}
virtual status_t setDefaultMaxBufferCount(int bufferCount) {
Parcel data, reply;
data.writeInterfaceToken(IGraphicBufferConsumer::getInterfaceDescriptor());
data.writeInt32(bufferCount);
status_t result = remote()->transact(SET_DEFAULT_MAX_BUFFER_COUNT, data, &reply);
if (result != NO_ERROR) {
return result;
}
return reply.readInt32();
}
virtual status_t disableAsyncBuffer() {
Parcel data, reply;
data.writeInterfaceToken(IGraphicBufferConsumer::getInterfaceDescriptor());
status_t result = remote()->transact(DISABLE_ASYNC_BUFFER, data, &reply);
if (result != NO_ERROR) {
return result;
}
return reply.readInt32();
}
virtual status_t setMaxAcquiredBufferCount(int maxAcquiredBuffers) {
Parcel data, reply;
data.writeInterfaceToken(IGraphicBufferConsumer::getInterfaceDescriptor());
data.writeInt32(maxAcquiredBuffers);
status_t result = remote()->transact(SET_MAX_ACQUIRED_BUFFER_COUNT, data, &reply);
if (result != NO_ERROR) {
return result;
}
return reply.readInt32();
}
virtual void setConsumerName(const String8& name) {
Parcel data, reply;
data.writeInterfaceToken(IGraphicBufferConsumer::getInterfaceDescriptor());
data.writeString8(name);
remote()->transact(SET_CONSUMER_NAME, data, &reply);
}
virtual status_t setDefaultBufferFormat(uint32_t defaultFormat) {
Parcel data, reply;
data.writeInterfaceToken(IGraphicBufferConsumer::getInterfaceDescriptor());
data.writeInt32(defaultFormat);
status_t result = remote()->transact(SET_DEFAULT_BUFFER_FORMAT, data, &reply);
if (result != NO_ERROR) {
return result;
}
return reply.readInt32();
}
virtual status_t setConsumerUsageBits(uint32_t usage) {
Parcel data, reply;
data.writeInterfaceToken(IGraphicBufferConsumer::getInterfaceDescriptor());
data.writeInt32(usage);
status_t result = remote()->transact(SET_CONSUMER_USAGE_BITS, data, &reply);
if (result != NO_ERROR) {
return result;
}
return reply.readInt32();
}
virtual status_t setTransformHint(uint32_t hint) {
Parcel data, reply;
data.writeInterfaceToken(IGraphicBufferConsumer::getInterfaceDescriptor());
data.writeInt32(hint);
status_t result = remote()->transact(SET_TRANSFORM_HINT, data, &reply);
if (result != NO_ERROR) {
return result;
}
return reply.readInt32();
}
virtual sp<NativeHandle> getSidebandStream() const {
Parcel data, reply;
status_t err;
data.writeInterfaceToken(IGraphicBufferConsumer::getInterfaceDescriptor());
if ((err = remote()->transact(GET_SIDEBAND_STREAM, data, &reply)) != NO_ERROR) {
return NULL;
}
sp<NativeHandle> stream;
if (reply.readInt32()) {
stream = NativeHandle::create(reply.readNativeHandle(), true);
}
return stream;
}
virtual void dump(String8& result, const char* prefix) const {
Parcel data, reply;
data.writeInterfaceToken(IGraphicBufferConsumer::getInterfaceDescriptor());
data.writeString8(result);
data.writeString8(String8(prefix ? prefix : ""));
remote()->transact(DUMP, data, &reply);
reply.readString8();
}
};
IMPLEMENT_META_INTERFACE(GraphicBufferConsumer, "android.gui.IGraphicBufferConsumer");
// ----------------------------------------------------------------------
status_t BnGraphicBufferConsumer::onTransact(
uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
{
switch(code) {
case ACQUIRE_BUFFER: {
CHECK_INTERFACE(IGraphicBufferConsumer, data, reply);
BufferItem item;
int64_t presentWhen = data.readInt64();
status_t result = acquireBuffer(&item, presentWhen);
status_t err = reply->write(item);
if (err) return err;
reply->writeInt32(result);
return NO_ERROR;
} break;
case DETACH_BUFFER: {
CHECK_INTERFACE(IGraphicBufferConsumer, data, reply);
int slot = data.readInt32();
int result = detachBuffer(slot);
reply->writeInt32(result);
return NO_ERROR;
} break;
case ATTACH_BUFFER: {
CHECK_INTERFACE(IGraphicBufferConsumer, data, reply);
sp<GraphicBuffer> buffer = new GraphicBuffer();
data.read(*buffer.get());
int slot;
int result = attachBuffer(&slot, buffer);
reply->writeInt32(slot);
reply->writeInt32(result);
return NO_ERROR;
} break;
case RELEASE_BUFFER: {
CHECK_INTERFACE(IGraphicBufferConsumer, data, reply);
int buf = data.readInt32();
uint64_t frameNumber = data.readInt64();
sp<Fence> releaseFence = new Fence();
status_t err = data.read(*releaseFence);
if (err) return err;
status_t result = releaseBuffer(buf, frameNumber,
EGL_NO_DISPLAY, EGL_NO_SYNC_KHR, releaseFence);
reply->writeInt32(result);
return NO_ERROR;
} break;
case CONSUMER_CONNECT: {
CHECK_INTERFACE(IGraphicBufferConsumer, data, reply);
sp<IConsumerListener> consumer = IConsumerListener::asInterface( data.readStrongBinder() );
bool controlledByApp = data.readInt32();
status_t result = consumerConnect(consumer, controlledByApp);
reply->writeInt32(result);
return NO_ERROR;
} break;
case CONSUMER_DISCONNECT: {
CHECK_INTERFACE(IGraphicBufferConsumer, data, reply);
status_t result = consumerDisconnect();
reply->writeInt32(result);
return NO_ERROR;
} break;
case GET_RELEASED_BUFFERS: {
CHECK_INTERFACE(IGraphicBufferConsumer, data, reply);
uint64_t slotMask;
status_t result = getReleasedBuffers(&slotMask);
reply->writeInt64(slotMask);
reply->writeInt32(result);
return NO_ERROR;
} break;
case SET_DEFAULT_BUFFER_SIZE: {
CHECK_INTERFACE(IGraphicBufferConsumer, data, reply);
uint32_t w = data.readInt32();
uint32_t h = data.readInt32();
status_t result = setDefaultBufferSize(w, h);
reply->writeInt32(result);
return NO_ERROR;
} break;
case SET_DEFAULT_MAX_BUFFER_COUNT: {
CHECK_INTERFACE(IGraphicBufferConsumer, data, reply);
uint32_t bufferCount = data.readInt32();
status_t result = setDefaultMaxBufferCount(bufferCount);
reply->writeInt32(result);
return NO_ERROR;
} break;
case DISABLE_ASYNC_BUFFER: {
CHECK_INTERFACE(IGraphicBufferConsumer, data, reply);
status_t result = disableAsyncBuffer();
reply->writeInt32(result);
return NO_ERROR;
} break;
case SET_MAX_ACQUIRED_BUFFER_COUNT: {
CHECK_INTERFACE(IGraphicBufferConsumer, data, reply);
uint32_t maxAcquiredBuffers = data.readInt32();
status_t result = setMaxAcquiredBufferCount(maxAcquiredBuffers);
reply->writeInt32(result);
return NO_ERROR;
} break;
case SET_CONSUMER_NAME: {
CHECK_INTERFACE(IGraphicBufferConsumer, data, reply);
setConsumerName( data.readString8() );
return NO_ERROR;
} break;
case SET_DEFAULT_BUFFER_FORMAT: {
CHECK_INTERFACE(IGraphicBufferConsumer, data, reply);
uint32_t defaultFormat = data.readInt32();
status_t result = setDefaultBufferFormat(defaultFormat);
reply->writeInt32(result);
return NO_ERROR;
} break;
case SET_CONSUMER_USAGE_BITS: {
CHECK_INTERFACE(IGraphicBufferConsumer, data, reply);
uint32_t usage = data.readInt32();
status_t result = setConsumerUsageBits(usage);
reply->writeInt32(result);
return NO_ERROR;
} break;
case SET_TRANSFORM_HINT: {
CHECK_INTERFACE(IGraphicBufferConsumer, data, reply);
uint32_t hint = data.readInt32();
status_t result = setTransformHint(hint);
reply->writeInt32(result);
return NO_ERROR;
} break;
case DUMP: {
CHECK_INTERFACE(IGraphicBufferConsumer, data, reply);
String8 result = data.readString8();
String8 prefix = data.readString8();
static_cast<IGraphicBufferConsumer*>(this)->dump(result, prefix);
reply->writeString8(result);
return NO_ERROR;
}
}
return BBinder::onTransact(code, data, reply, flags);
}
}; // namespace android
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