Binderize the consumer side of BufferQueue
While currently untested, this should allow to move the
BuffereQueue in the consumer process and have everything
work as usual.
Bug: 9265647
Change-Id: I9ca8f099f7c65b9a27b7e7a3643b46d1b58eacfc
diff --git a/libs/gui/IGraphicBufferConsumer.cpp b/libs/gui/IGraphicBufferConsumer.cpp
new file mode 100644
index 0000000..5263281
--- /dev/null
+++ b/libs/gui/IGraphicBufferConsumer.cpp
@@ -0,0 +1,459 @@
+/*
+ * 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.
+ */
+
+#define EGL_EGLEXT_PROTOTYPES
+
+#include <EGL/egl.h>
+#include <EGL/eglext.h>
+
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <utils/Errors.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),
+ mFrameNumber(0),
+ mBuf(INVALID_BUFFER_SLOT),
+ mIsDroppable(false),
+ mAcquireCalled(false) {
+ mCrop.makeInvalid();
+}
+
+size_t IGraphicBufferConsumer::BufferItem::getPodSize() const {
+ size_t c = sizeof(mCrop) +
+ sizeof(mTransform) +
+ sizeof(mScalingMode) +
+ sizeof(mTimestamp) +
+ sizeof(mFrameNumber) +
+ sizeof(mBuf) +
+ sizeof(mIsDroppable) +
+ sizeof(mAcquireCalled);
+ return c;
+}
+
+size_t IGraphicBufferConsumer::BufferItem::getFlattenedSize() const {
+ size_t c = 0;
+ if (mGraphicBuffer != 0) {
+ c += mGraphicBuffer->getFlattenedSize();
+ FlattenableUtils::align<4>(c);
+ }
+ if (mFence != 0) {
+ c += mFence->getFlattenedSize();
+ 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;
+}
+
+status_t IGraphicBufferConsumer::BufferItem::flatten(
+ void*& buffer, size_t& size, int*& fds, size_t& count) const {
+
+ // make sure we have enough space
+ if (count < 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);
+ FlattenableUtils::write(buffer, size, mFrameNumber);
+ FlattenableUtils::write(buffer, size, mBuf);
+ FlattenableUtils::write(buffer, size, mIsDroppable);
+ FlattenableUtils::write(buffer, size, mAcquireCalled);
+
+ 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);
+ FlattenableUtils::read(buffer, size, mFrameNumber);
+ FlattenableUtils::read(buffer, size, mBuf);
+ FlattenableUtils::read(buffer, size, mIsDroppable);
+ FlattenableUtils::read(buffer, size, mAcquireCalled);
+
+ return NO_ERROR;
+}
+
+// ---------------------------------------------------------------------------
+
+enum {
+ ACQUIRE_BUFFER = IBinder::FIRST_CALL_TRANSACTION,
+ 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
+};
+
+
+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 releaseBuffer(int buf, uint64_t frameNumber,
+ EGLDisplay display, EGLSyncKHR fence,
+ 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(consumer->asBinder());
+ 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(uint32_t* slotMask) {
+ Parcel data, reply;
+ data.writeInterfaceToken(IGraphicBufferConsumer::getInterfaceDescriptor());
+ status_t result = remote()->transact(GET_RELEASED_BUFFERS, data, &reply);
+ if (result != NO_ERROR) {
+ return result;
+ }
+ *slotMask = reply.readInt32();
+ 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();
+ }
+};
+
+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 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);
+ uint32_t slotMask;
+ status_t result = getReleasedBuffers(&slotMask);
+ reply->writeInt32(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;
+ }
+ return BBinder::onTransact(code, data, reply, flags);
+}
+
+}; // namespace android