| /* |
| * Copyright (C) 2010 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" |
| #define ATRACE_TAG ATRACE_TAG_GRAPHICS |
| //#define LOG_NDEBUG 0 |
| |
| #include <android/native_window.h> |
| |
| #include <binder/Parcel.h> |
| |
| #include <utils/Log.h> |
| #include <utils/Trace.h> |
| #include <utils/NativeHandle.h> |
| |
| #include <ui/Fence.h> |
| #include <ui/Region.h> |
| |
| #include <gui/IProducerListener.h> |
| #include <gui/ISurfaceComposer.h> |
| #include <gui/SurfaceComposerClient.h> |
| #include <gui/GLConsumer.h> |
| #include <gui/Surface.h> |
| |
| #include <private/gui/ComposerService.h> |
| |
| namespace android { |
| |
| Surface::Surface( |
| const sp<IGraphicBufferProducer>& bufferProducer, |
| bool controlledByApp) |
| : mGraphicBufferProducer(bufferProducer), |
| mCrop(Rect::EMPTY_RECT), |
| mGenerationNumber(0), |
| mSharedBufferMode(false), |
| mAutoRefresh(false), |
| mSharedBufferSlot(BufferItem::INVALID_BUFFER_SLOT), |
| mSharedBufferHasBeenQueued(false) |
| { |
| // Initialize the ANativeWindow function pointers. |
| ANativeWindow::setSwapInterval = hook_setSwapInterval; |
| ANativeWindow::dequeueBuffer = hook_dequeueBuffer; |
| ANativeWindow::cancelBuffer = hook_cancelBuffer; |
| ANativeWindow::queueBuffer = hook_queueBuffer; |
| ANativeWindow::query = hook_query; |
| ANativeWindow::perform = hook_perform; |
| |
| ANativeWindow::dequeueBuffer_DEPRECATED = hook_dequeueBuffer_DEPRECATED; |
| ANativeWindow::cancelBuffer_DEPRECATED = hook_cancelBuffer_DEPRECATED; |
| ANativeWindow::lockBuffer_DEPRECATED = hook_lockBuffer_DEPRECATED; |
| ANativeWindow::queueBuffer_DEPRECATED = hook_queueBuffer_DEPRECATED; |
| |
| const_cast<int&>(ANativeWindow::minSwapInterval) = 0; |
| const_cast<int&>(ANativeWindow::maxSwapInterval) = 1; |
| |
| mReqWidth = 0; |
| mReqHeight = 0; |
| mReqFormat = 0; |
| mReqUsage = 0; |
| mTimestamp = NATIVE_WINDOW_TIMESTAMP_AUTO; |
| mDataSpace = HAL_DATASPACE_UNKNOWN; |
| mScalingMode = NATIVE_WINDOW_SCALING_MODE_FREEZE; |
| mTransform = 0; |
| mStickyTransform = 0; |
| mDefaultWidth = 0; |
| mDefaultHeight = 0; |
| mUserWidth = 0; |
| mUserHeight = 0; |
| mTransformHint = 0; |
| mConsumerRunningBehind = false; |
| mConnectedToCpu = false; |
| mProducerControlledByApp = controlledByApp; |
| mSwapIntervalZero = false; |
| } |
| |
| Surface::~Surface() { |
| if (mConnectedToCpu) { |
| Surface::disconnect(NATIVE_WINDOW_API_CPU); |
| } |
| } |
| |
| sp<IGraphicBufferProducer> Surface::getIGraphicBufferProducer() const { |
| return mGraphicBufferProducer; |
| } |
| |
| void Surface::setSidebandStream(const sp<NativeHandle>& stream) { |
| mGraphicBufferProducer->setSidebandStream(stream); |
| } |
| |
| void Surface::allocateBuffers() { |
| uint32_t reqWidth = mReqWidth ? mReqWidth : mUserWidth; |
| uint32_t reqHeight = mReqHeight ? mReqHeight : mUserHeight; |
| mGraphicBufferProducer->allocateBuffers(reqWidth, reqHeight, |
| mReqFormat, mReqUsage); |
| } |
| |
| status_t Surface::setGenerationNumber(uint32_t generation) { |
| status_t result = mGraphicBufferProducer->setGenerationNumber(generation); |
| if (result == NO_ERROR) { |
| mGenerationNumber = generation; |
| } |
| return result; |
| } |
| |
| uint64_t Surface::getNextFrameNumber() const { |
| return mGraphicBufferProducer->getNextFrameNumber(); |
| } |
| |
| String8 Surface::getConsumerName() const { |
| return mGraphicBufferProducer->getConsumerName(); |
| } |
| |
| status_t Surface::setDequeueTimeout(nsecs_t timeout) { |
| return mGraphicBufferProducer->setDequeueTimeout(timeout); |
| } |
| |
| status_t Surface::getLastQueuedBuffer(sp<GraphicBuffer>* outBuffer, |
| sp<Fence>* outFence, float outTransformMatrix[16]) { |
| return mGraphicBufferProducer->getLastQueuedBuffer(outBuffer, outFence, |
| outTransformMatrix); |
| } |
| |
| int Surface::hook_setSwapInterval(ANativeWindow* window, int interval) { |
| Surface* c = getSelf(window); |
| return c->setSwapInterval(interval); |
| } |
| |
| int Surface::hook_dequeueBuffer(ANativeWindow* window, |
| ANativeWindowBuffer** buffer, int* fenceFd) { |
| Surface* c = getSelf(window); |
| return c->dequeueBuffer(buffer, fenceFd); |
| } |
| |
| int Surface::hook_cancelBuffer(ANativeWindow* window, |
| ANativeWindowBuffer* buffer, int fenceFd) { |
| Surface* c = getSelf(window); |
| return c->cancelBuffer(buffer, fenceFd); |
| } |
| |
| int Surface::hook_queueBuffer(ANativeWindow* window, |
| ANativeWindowBuffer* buffer, int fenceFd) { |
| Surface* c = getSelf(window); |
| return c->queueBuffer(buffer, fenceFd); |
| } |
| |
| int Surface::hook_dequeueBuffer_DEPRECATED(ANativeWindow* window, |
| ANativeWindowBuffer** buffer) { |
| Surface* c = getSelf(window); |
| ANativeWindowBuffer* buf; |
| int fenceFd = -1; |
| int result = c->dequeueBuffer(&buf, &fenceFd); |
| if (result != OK) { |
| return result; |
| } |
| sp<Fence> fence(new Fence(fenceFd)); |
| int waitResult = fence->waitForever("dequeueBuffer_DEPRECATED"); |
| if (waitResult != OK) { |
| ALOGE("dequeueBuffer_DEPRECATED: Fence::wait returned an error: %d", |
| waitResult); |
| c->cancelBuffer(buf, -1); |
| return waitResult; |
| } |
| *buffer = buf; |
| return result; |
| } |
| |
| int Surface::hook_cancelBuffer_DEPRECATED(ANativeWindow* window, |
| ANativeWindowBuffer* buffer) { |
| Surface* c = getSelf(window); |
| return c->cancelBuffer(buffer, -1); |
| } |
| |
| int Surface::hook_lockBuffer_DEPRECATED(ANativeWindow* window, |
| ANativeWindowBuffer* buffer) { |
| Surface* c = getSelf(window); |
| return c->lockBuffer_DEPRECATED(buffer); |
| } |
| |
| int Surface::hook_queueBuffer_DEPRECATED(ANativeWindow* window, |
| ANativeWindowBuffer* buffer) { |
| Surface* c = getSelf(window); |
| return c->queueBuffer(buffer, -1); |
| } |
| |
| int Surface::hook_query(const ANativeWindow* window, |
| int what, int* value) { |
| const Surface* c = getSelf(window); |
| return c->query(what, value); |
| } |
| |
| int Surface::hook_perform(ANativeWindow* window, int operation, ...) { |
| va_list args; |
| va_start(args, operation); |
| Surface* c = getSelf(window); |
| int result = c->perform(operation, args); |
| va_end(args); |
| return result; |
| } |
| |
| int Surface::setSwapInterval(int interval) { |
| ATRACE_CALL(); |
| // EGL specification states: |
| // interval is silently clamped to minimum and maximum implementation |
| // dependent values before being stored. |
| |
| if (interval < minSwapInterval) |
| interval = minSwapInterval; |
| |
| if (interval > maxSwapInterval) |
| interval = maxSwapInterval; |
| |
| mSwapIntervalZero = (interval == 0); |
| mGraphicBufferProducer->setAsyncMode(mSwapIntervalZero); |
| |
| return NO_ERROR; |
| } |
| |
| int Surface::dequeueBuffer(android_native_buffer_t** buffer, int* fenceFd) { |
| ATRACE_CALL(); |
| ALOGV("Surface::dequeueBuffer"); |
| |
| uint32_t reqWidth; |
| uint32_t reqHeight; |
| PixelFormat reqFormat; |
| uint32_t reqUsage; |
| |
| { |
| Mutex::Autolock lock(mMutex); |
| |
| reqWidth = mReqWidth ? mReqWidth : mUserWidth; |
| reqHeight = mReqHeight ? mReqHeight : mUserHeight; |
| |
| reqFormat = mReqFormat; |
| reqUsage = mReqUsage; |
| |
| if (mSharedBufferMode && mAutoRefresh && mSharedBufferSlot != |
| BufferItem::INVALID_BUFFER_SLOT) { |
| sp<GraphicBuffer>& gbuf(mSlots[mSharedBufferSlot].buffer); |
| if (gbuf != NULL) { |
| *buffer = gbuf.get(); |
| *fenceFd = -1; |
| return OK; |
| } |
| } |
| } // Drop the lock so that we can still touch the Surface while blocking in IGBP::dequeueBuffer |
| |
| int buf = -1; |
| sp<Fence> fence; |
| status_t result = mGraphicBufferProducer->dequeueBuffer(&buf, &fence, |
| reqWidth, reqHeight, reqFormat, reqUsage); |
| |
| if (result < 0) { |
| ALOGV("dequeueBuffer: IGraphicBufferProducer::dequeueBuffer" |
| "(%d, %d, %d, %d) failed: %d", reqWidth, reqHeight, reqFormat, |
| reqUsage, result); |
| return result; |
| } |
| |
| Mutex::Autolock lock(mMutex); |
| |
| sp<GraphicBuffer>& gbuf(mSlots[buf].buffer); |
| |
| // this should never happen |
| ALOGE_IF(fence == NULL, "Surface::dequeueBuffer: received null Fence! buf=%d", buf); |
| |
| if (result & IGraphicBufferProducer::RELEASE_ALL_BUFFERS) { |
| freeAllBuffers(); |
| } |
| |
| if ((result & IGraphicBufferProducer::BUFFER_NEEDS_REALLOCATION) || gbuf == 0) { |
| result = mGraphicBufferProducer->requestBuffer(buf, &gbuf); |
| if (result != NO_ERROR) { |
| ALOGE("dequeueBuffer: IGraphicBufferProducer::requestBuffer failed: %d", result); |
| mGraphicBufferProducer->cancelBuffer(buf, fence); |
| return result; |
| } |
| } |
| |
| if (fence->isValid()) { |
| *fenceFd = fence->dup(); |
| if (*fenceFd == -1) { |
| ALOGE("dequeueBuffer: error duping fence: %d", errno); |
| // dup() should never fail; something is badly wrong. Soldier on |
| // and hope for the best; the worst that should happen is some |
| // visible corruption that lasts until the next frame. |
| } |
| } else { |
| *fenceFd = -1; |
| } |
| |
| *buffer = gbuf.get(); |
| |
| if (mSharedBufferMode && mAutoRefresh) { |
| mSharedBufferSlot = buf; |
| mSharedBufferHasBeenQueued = false; |
| } else if (mSharedBufferSlot == buf) { |
| mSharedBufferSlot = BufferItem::INVALID_BUFFER_SLOT; |
| mSharedBufferHasBeenQueued = false; |
| } |
| |
| return OK; |
| } |
| |
| int Surface::cancelBuffer(android_native_buffer_t* buffer, |
| int fenceFd) { |
| ATRACE_CALL(); |
| ALOGV("Surface::cancelBuffer"); |
| Mutex::Autolock lock(mMutex); |
| int i = getSlotFromBufferLocked(buffer); |
| if (i < 0) { |
| if (fenceFd >= 0) { |
| close(fenceFd); |
| } |
| return i; |
| } |
| if (mSharedBufferSlot == i && mSharedBufferHasBeenQueued) { |
| if (fenceFd >= 0) { |
| close(fenceFd); |
| } |
| return OK; |
| } |
| sp<Fence> fence(fenceFd >= 0 ? new Fence(fenceFd) : Fence::NO_FENCE); |
| mGraphicBufferProducer->cancelBuffer(i, fence); |
| |
| if (mSharedBufferMode && mAutoRefresh && mSharedBufferSlot == i) { |
| mSharedBufferHasBeenQueued = true; |
| } |
| |
| return OK; |
| } |
| |
| int Surface::getSlotFromBufferLocked( |
| android_native_buffer_t* buffer) const { |
| for (int i = 0; i < NUM_BUFFER_SLOTS; i++) { |
| if (mSlots[i].buffer != NULL && |
| mSlots[i].buffer->handle == buffer->handle) { |
| return i; |
| } |
| } |
| ALOGE("getSlotFromBufferLocked: unknown buffer: %p", buffer->handle); |
| return BAD_VALUE; |
| } |
| |
| int Surface::lockBuffer_DEPRECATED(android_native_buffer_t* buffer __attribute__((unused))) { |
| ALOGV("Surface::lockBuffer"); |
| Mutex::Autolock lock(mMutex); |
| return OK; |
| } |
| |
| int Surface::queueBuffer(android_native_buffer_t* buffer, int fenceFd) { |
| ATRACE_CALL(); |
| ALOGV("Surface::queueBuffer"); |
| Mutex::Autolock lock(mMutex); |
| int64_t timestamp; |
| bool isAutoTimestamp = false; |
| |
| if (mTimestamp == NATIVE_WINDOW_TIMESTAMP_AUTO) { |
| timestamp = systemTime(SYSTEM_TIME_MONOTONIC); |
| isAutoTimestamp = true; |
| ALOGV("Surface::queueBuffer making up timestamp: %.2f ms", |
| timestamp / 1000000.f); |
| } else { |
| timestamp = mTimestamp; |
| } |
| int i = getSlotFromBufferLocked(buffer); |
| if (i < 0) { |
| if (fenceFd >= 0) { |
| close(fenceFd); |
| } |
| return i; |
| } |
| if (mSharedBufferSlot == i && mSharedBufferHasBeenQueued) { |
| if (fenceFd >= 0) { |
| close(fenceFd); |
| } |
| return OK; |
| } |
| |
| |
| // Make sure the crop rectangle is entirely inside the buffer. |
| Rect crop(Rect::EMPTY_RECT); |
| mCrop.intersect(Rect(buffer->width, buffer->height), &crop); |
| |
| sp<Fence> fence(fenceFd >= 0 ? new Fence(fenceFd) : Fence::NO_FENCE); |
| IGraphicBufferProducer::QueueBufferOutput output; |
| IGraphicBufferProducer::QueueBufferInput input(timestamp, isAutoTimestamp, |
| mDataSpace, crop, mScalingMode, mTransform ^ mStickyTransform, |
| fence, mStickyTransform); |
| |
| if (mConnectedToCpu || mDirtyRegion.bounds() == Rect::INVALID_RECT) { |
| input.setSurfaceDamage(Region::INVALID_REGION); |
| } else { |
| // Here we do two things: |
| // 1) The surface damage was specified using the OpenGL ES convention of |
| // the origin being in the bottom-left corner. Here we flip to the |
| // convention that the rest of the system uses (top-left corner) by |
| // subtracting all top/bottom coordinates from the buffer height. |
| // 2) If the buffer is coming in rotated (for example, because the EGL |
| // implementation is reacting to the transform hint coming back from |
| // SurfaceFlinger), the surface damage needs to be rotated the |
| // opposite direction, since it was generated assuming an unrotated |
| // buffer (the app doesn't know that the EGL implementation is |
| // reacting to the transform hint behind its back). The |
| // transformations in the switch statement below apply those |
| // complementary rotations (e.g., if 90 degrees, rotate 270 degrees). |
| |
| int width = buffer->width; |
| int height = buffer->height; |
| bool rotated90 = (mTransform ^ mStickyTransform) & |
| NATIVE_WINDOW_TRANSFORM_ROT_90; |
| if (rotated90) { |
| std::swap(width, height); |
| } |
| |
| Region flippedRegion; |
| for (auto rect : mDirtyRegion) { |
| int left = rect.left; |
| int right = rect.right; |
| int top = height - rect.bottom; // Flip from OpenGL convention |
| int bottom = height - rect.top; // Flip from OpenGL convention |
| switch (mTransform ^ mStickyTransform) { |
| case NATIVE_WINDOW_TRANSFORM_ROT_90: { |
| // Rotate 270 degrees |
| Rect flippedRect{top, width - right, bottom, width - left}; |
| flippedRegion.orSelf(flippedRect); |
| break; |
| } |
| case NATIVE_WINDOW_TRANSFORM_ROT_180: { |
| // Rotate 180 degrees |
| Rect flippedRect{width - right, height - bottom, |
| width - left, height - top}; |
| flippedRegion.orSelf(flippedRect); |
| break; |
| } |
| case NATIVE_WINDOW_TRANSFORM_ROT_270: { |
| // Rotate 90 degrees |
| Rect flippedRect{height - bottom, left, |
| height - top, right}; |
| flippedRegion.orSelf(flippedRect); |
| break; |
| } |
| default: { |
| Rect flippedRect{left, top, right, bottom}; |
| flippedRegion.orSelf(flippedRect); |
| break; |
| } |
| } |
| } |
| |
| input.setSurfaceDamage(flippedRegion); |
| } |
| |
| status_t err = mGraphicBufferProducer->queueBuffer(i, input, &output); |
| if (err != OK) { |
| ALOGE("queueBuffer: error queuing buffer to SurfaceTexture, %d", err); |
| } |
| |
| uint32_t numPendingBuffers = 0; |
| uint32_t hint = 0; |
| output.deflate(&mDefaultWidth, &mDefaultHeight, &hint, |
| &numPendingBuffers); |
| |
| // Disable transform hint if sticky transform is set. |
| if (mStickyTransform == 0) { |
| mTransformHint = hint; |
| } |
| |
| mConsumerRunningBehind = (numPendingBuffers >= 2); |
| |
| if (!mConnectedToCpu) { |
| // Clear surface damage back to full-buffer |
| mDirtyRegion = Region::INVALID_REGION; |
| } |
| |
| if (mSharedBufferMode && mAutoRefresh && mSharedBufferSlot == i) { |
| mSharedBufferHasBeenQueued = true; |
| } |
| |
| mQueueBufferCondition.broadcast(); |
| |
| return err; |
| } |
| |
| int Surface::query(int what, int* value) const { |
| ATRACE_CALL(); |
| ALOGV("Surface::query"); |
| { // scope for the lock |
| Mutex::Autolock lock(mMutex); |
| switch (what) { |
| case NATIVE_WINDOW_FORMAT: |
| if (mReqFormat) { |
| *value = static_cast<int>(mReqFormat); |
| return NO_ERROR; |
| } |
| break; |
| case NATIVE_WINDOW_QUEUES_TO_WINDOW_COMPOSER: { |
| sp<ISurfaceComposer> composer( |
| ComposerService::getComposerService()); |
| if (composer->authenticateSurfaceTexture(mGraphicBufferProducer)) { |
| *value = 1; |
| } else { |
| *value = 0; |
| } |
| return NO_ERROR; |
| } |
| case NATIVE_WINDOW_CONCRETE_TYPE: |
| *value = NATIVE_WINDOW_SURFACE; |
| return NO_ERROR; |
| case NATIVE_WINDOW_DEFAULT_WIDTH: |
| *value = static_cast<int>( |
| mUserWidth ? mUserWidth : mDefaultWidth); |
| return NO_ERROR; |
| case NATIVE_WINDOW_DEFAULT_HEIGHT: |
| *value = static_cast<int>( |
| mUserHeight ? mUserHeight : mDefaultHeight); |
| return NO_ERROR; |
| case NATIVE_WINDOW_TRANSFORM_HINT: |
| *value = static_cast<int>(mTransformHint); |
| return NO_ERROR; |
| case NATIVE_WINDOW_CONSUMER_RUNNING_BEHIND: { |
| status_t err = NO_ERROR; |
| if (!mConsumerRunningBehind) { |
| *value = 0; |
| } else { |
| err = mGraphicBufferProducer->query(what, value); |
| if (err == NO_ERROR) { |
| mConsumerRunningBehind = *value; |
| } |
| } |
| return err; |
| } |
| } |
| } |
| return mGraphicBufferProducer->query(what, value); |
| } |
| |
| int Surface::perform(int operation, va_list args) |
| { |
| int res = NO_ERROR; |
| switch (operation) { |
| case NATIVE_WINDOW_CONNECT: |
| // deprecated. must return NO_ERROR. |
| break; |
| case NATIVE_WINDOW_DISCONNECT: |
| // deprecated. must return NO_ERROR. |
| break; |
| case NATIVE_WINDOW_SET_USAGE: |
| res = dispatchSetUsage(args); |
| break; |
| case NATIVE_WINDOW_SET_CROP: |
| res = dispatchSetCrop(args); |
| break; |
| case NATIVE_WINDOW_SET_BUFFER_COUNT: |
| res = dispatchSetBufferCount(args); |
| break; |
| case NATIVE_WINDOW_SET_BUFFERS_GEOMETRY: |
| res = dispatchSetBuffersGeometry(args); |
| break; |
| case NATIVE_WINDOW_SET_BUFFERS_TRANSFORM: |
| res = dispatchSetBuffersTransform(args); |
| break; |
| case NATIVE_WINDOW_SET_BUFFERS_STICKY_TRANSFORM: |
| res = dispatchSetBuffersStickyTransform(args); |
| break; |
| case NATIVE_WINDOW_SET_BUFFERS_TIMESTAMP: |
| res = dispatchSetBuffersTimestamp(args); |
| break; |
| case NATIVE_WINDOW_SET_BUFFERS_DIMENSIONS: |
| res = dispatchSetBuffersDimensions(args); |
| break; |
| case NATIVE_WINDOW_SET_BUFFERS_USER_DIMENSIONS: |
| res = dispatchSetBuffersUserDimensions(args); |
| break; |
| case NATIVE_WINDOW_SET_BUFFERS_FORMAT: |
| res = dispatchSetBuffersFormat(args); |
| break; |
| case NATIVE_WINDOW_LOCK: |
| res = dispatchLock(args); |
| break; |
| case NATIVE_WINDOW_UNLOCK_AND_POST: |
| res = dispatchUnlockAndPost(args); |
| break; |
| case NATIVE_WINDOW_SET_SCALING_MODE: |
| res = dispatchSetScalingMode(args); |
| break; |
| case NATIVE_WINDOW_API_CONNECT: |
| res = dispatchConnect(args); |
| break; |
| case NATIVE_WINDOW_API_DISCONNECT: |
| res = dispatchDisconnect(args); |
| break; |
| case NATIVE_WINDOW_SET_SIDEBAND_STREAM: |
| res = dispatchSetSidebandStream(args); |
| break; |
| case NATIVE_WINDOW_SET_BUFFERS_DATASPACE: |
| res = dispatchSetBuffersDataSpace(args); |
| break; |
| case NATIVE_WINDOW_SET_SURFACE_DAMAGE: |
| res = dispatchSetSurfaceDamage(args); |
| break; |
| case NATIVE_WINDOW_SET_SHARED_BUFFER_MODE: |
| res = dispatchSetSharedBufferMode(args); |
| break; |
| case NATIVE_WINDOW_SET_AUTO_REFRESH: |
| res = dispatchSetAutoRefresh(args); |
| break; |
| default: |
| res = NAME_NOT_FOUND; |
| break; |
| } |
| return res; |
| } |
| |
| int Surface::dispatchConnect(va_list args) { |
| int api = va_arg(args, int); |
| return connect(api); |
| } |
| |
| int Surface::dispatchDisconnect(va_list args) { |
| int api = va_arg(args, int); |
| return disconnect(api); |
| } |
| |
| int Surface::dispatchSetUsage(va_list args) { |
| int usage = va_arg(args, int); |
| return setUsage(static_cast<uint32_t>(usage)); |
| } |
| |
| int Surface::dispatchSetCrop(va_list args) { |
| android_native_rect_t const* rect = va_arg(args, android_native_rect_t*); |
| return setCrop(reinterpret_cast<Rect const*>(rect)); |
| } |
| |
| int Surface::dispatchSetBufferCount(va_list args) { |
| size_t bufferCount = va_arg(args, size_t); |
| return setBufferCount(static_cast<int32_t>(bufferCount)); |
| } |
| |
| int Surface::dispatchSetBuffersGeometry(va_list args) { |
| uint32_t width = va_arg(args, uint32_t); |
| uint32_t height = va_arg(args, uint32_t); |
| PixelFormat format = va_arg(args, PixelFormat); |
| int err = setBuffersDimensions(width, height); |
| if (err != 0) { |
| return err; |
| } |
| return setBuffersFormat(format); |
| } |
| |
| int Surface::dispatchSetBuffersDimensions(va_list args) { |
| uint32_t width = va_arg(args, uint32_t); |
| uint32_t height = va_arg(args, uint32_t); |
| return setBuffersDimensions(width, height); |
| } |
| |
| int Surface::dispatchSetBuffersUserDimensions(va_list args) { |
| uint32_t width = va_arg(args, uint32_t); |
| uint32_t height = va_arg(args, uint32_t); |
| return setBuffersUserDimensions(width, height); |
| } |
| |
| int Surface::dispatchSetBuffersFormat(va_list args) { |
| PixelFormat format = va_arg(args, PixelFormat); |
| return setBuffersFormat(format); |
| } |
| |
| int Surface::dispatchSetScalingMode(va_list args) { |
| int mode = va_arg(args, int); |
| return setScalingMode(mode); |
| } |
| |
| int Surface::dispatchSetBuffersTransform(va_list args) { |
| uint32_t transform = va_arg(args, uint32_t); |
| return setBuffersTransform(transform); |
| } |
| |
| int Surface::dispatchSetBuffersStickyTransform(va_list args) { |
| uint32_t transform = va_arg(args, uint32_t); |
| return setBuffersStickyTransform(transform); |
| } |
| |
| int Surface::dispatchSetBuffersTimestamp(va_list args) { |
| int64_t timestamp = va_arg(args, int64_t); |
| return setBuffersTimestamp(timestamp); |
| } |
| |
| int Surface::dispatchLock(va_list args) { |
| ANativeWindow_Buffer* outBuffer = va_arg(args, ANativeWindow_Buffer*); |
| ARect* inOutDirtyBounds = va_arg(args, ARect*); |
| return lock(outBuffer, inOutDirtyBounds); |
| } |
| |
| int Surface::dispatchUnlockAndPost(va_list args __attribute__((unused))) { |
| return unlockAndPost(); |
| } |
| |
| int Surface::dispatchSetSidebandStream(va_list args) { |
| native_handle_t* sH = va_arg(args, native_handle_t*); |
| sp<NativeHandle> sidebandHandle = NativeHandle::create(sH, false); |
| setSidebandStream(sidebandHandle); |
| return OK; |
| } |
| |
| int Surface::dispatchSetBuffersDataSpace(va_list args) { |
| android_dataspace dataspace = |
| static_cast<android_dataspace>(va_arg(args, int)); |
| return setBuffersDataSpace(dataspace); |
| } |
| |
| int Surface::dispatchSetSurfaceDamage(va_list args) { |
| android_native_rect_t* rects = va_arg(args, android_native_rect_t*); |
| size_t numRects = va_arg(args, size_t); |
| setSurfaceDamage(rects, numRects); |
| return NO_ERROR; |
| } |
| |
| int Surface::dispatchSetSharedBufferMode(va_list args) { |
| bool sharedBufferMode = va_arg(args, int); |
| return setSharedBufferMode(sharedBufferMode); |
| } |
| |
| int Surface::dispatchSetAutoRefresh(va_list args) { |
| bool autoRefresh = va_arg(args, int); |
| return setAutoRefresh(autoRefresh); |
| } |
| |
| int Surface::connect(int api) { |
| static sp<IProducerListener> listener = new DummyProducerListener(); |
| return connect(api, listener); |
| } |
| |
| int Surface::connect(int api, const sp<IProducerListener>& listener) { |
| ATRACE_CALL(); |
| ALOGV("Surface::connect"); |
| Mutex::Autolock lock(mMutex); |
| IGraphicBufferProducer::QueueBufferOutput output; |
| int err = mGraphicBufferProducer->connect(listener, api, mProducerControlledByApp, &output); |
| if (err == NO_ERROR) { |
| uint32_t numPendingBuffers = 0; |
| uint32_t hint = 0; |
| output.deflate(&mDefaultWidth, &mDefaultHeight, &hint, |
| &numPendingBuffers); |
| |
| // Disable transform hint if sticky transform is set. |
| if (mStickyTransform == 0) { |
| mTransformHint = hint; |
| } |
| |
| mConsumerRunningBehind = (numPendingBuffers >= 2); |
| } |
| if (!err && api == NATIVE_WINDOW_API_CPU) { |
| mConnectedToCpu = true; |
| // Clear the dirty region in case we're switching from a non-CPU API |
| mDirtyRegion.clear(); |
| } else if (!err) { |
| // Initialize the dirty region for tracking surface damage |
| mDirtyRegion = Region::INVALID_REGION; |
| } |
| |
| return err; |
| } |
| |
| |
| int Surface::disconnect(int api) { |
| ATRACE_CALL(); |
| ALOGV("Surface::disconnect"); |
| Mutex::Autolock lock(mMutex); |
| mSharedBufferSlot = BufferItem::INVALID_BUFFER_SLOT; |
| mSharedBufferHasBeenQueued = false; |
| freeAllBuffers(); |
| int err = mGraphicBufferProducer->disconnect(api); |
| if (!err) { |
| mReqFormat = 0; |
| mReqWidth = 0; |
| mReqHeight = 0; |
| mReqUsage = 0; |
| mCrop.clear(); |
| mScalingMode = NATIVE_WINDOW_SCALING_MODE_FREEZE; |
| mTransform = 0; |
| mStickyTransform = 0; |
| |
| if (api == NATIVE_WINDOW_API_CPU) { |
| mConnectedToCpu = false; |
| } |
| } |
| return err; |
| } |
| |
| int Surface::detachNextBuffer(sp<GraphicBuffer>* outBuffer, |
| sp<Fence>* outFence) { |
| ATRACE_CALL(); |
| ALOGV("Surface::detachNextBuffer"); |
| |
| if (outBuffer == NULL || outFence == NULL) { |
| return BAD_VALUE; |
| } |
| |
| Mutex::Autolock lock(mMutex); |
| |
| sp<GraphicBuffer> buffer(NULL); |
| sp<Fence> fence(NULL); |
| status_t result = mGraphicBufferProducer->detachNextBuffer( |
| &buffer, &fence); |
| if (result != NO_ERROR) { |
| return result; |
| } |
| |
| *outBuffer = buffer; |
| if (fence != NULL && fence->isValid()) { |
| *outFence = fence; |
| } else { |
| *outFence = Fence::NO_FENCE; |
| } |
| |
| for (int i = 0; i < NUM_BUFFER_SLOTS; i++) { |
| if (mSlots[i].buffer != NULL && |
| mSlots[i].buffer->handle == buffer->handle) { |
| mSlots[i].buffer = NULL; |
| } |
| } |
| |
| return NO_ERROR; |
| } |
| |
| int Surface::attachBuffer(ANativeWindowBuffer* buffer) |
| { |
| ATRACE_CALL(); |
| ALOGV("Surface::attachBuffer"); |
| |
| Mutex::Autolock lock(mMutex); |
| |
| sp<GraphicBuffer> graphicBuffer(static_cast<GraphicBuffer*>(buffer)); |
| uint32_t priorGeneration = graphicBuffer->mGenerationNumber; |
| graphicBuffer->mGenerationNumber = mGenerationNumber; |
| int32_t attachedSlot = -1; |
| status_t result = mGraphicBufferProducer->attachBuffer( |
| &attachedSlot, graphicBuffer); |
| if (result != NO_ERROR) { |
| ALOGE("attachBuffer: IGraphicBufferProducer call failed (%d)", result); |
| graphicBuffer->mGenerationNumber = priorGeneration; |
| return result; |
| } |
| mSlots[attachedSlot].buffer = graphicBuffer; |
| |
| return NO_ERROR; |
| } |
| |
| int Surface::setUsage(uint32_t reqUsage) |
| { |
| ALOGV("Surface::setUsage"); |
| Mutex::Autolock lock(mMutex); |
| if (reqUsage != mReqUsage) { |
| mSharedBufferSlot = BufferItem::INVALID_BUFFER_SLOT; |
| } |
| mReqUsage = reqUsage; |
| return OK; |
| } |
| |
| int Surface::setCrop(Rect const* rect) |
| { |
| ATRACE_CALL(); |
| |
| Rect realRect(Rect::EMPTY_RECT); |
| if (rect == NULL || rect->isEmpty()) { |
| realRect.clear(); |
| } else { |
| realRect = *rect; |
| } |
| |
| ALOGV("Surface::setCrop rect=[%d %d %d %d]", |
| realRect.left, realRect.top, realRect.right, realRect.bottom); |
| |
| Mutex::Autolock lock(mMutex); |
| mCrop = realRect; |
| return NO_ERROR; |
| } |
| |
| int Surface::setBufferCount(int bufferCount) |
| { |
| ATRACE_CALL(); |
| ALOGV("Surface::setBufferCount"); |
| Mutex::Autolock lock(mMutex); |
| |
| status_t err = NO_ERROR; |
| if (bufferCount == 0) { |
| err = mGraphicBufferProducer->setMaxDequeuedBufferCount(1); |
| } else { |
| int minUndequeuedBuffers = 0; |
| err = mGraphicBufferProducer->query( |
| NATIVE_WINDOW_MIN_UNDEQUEUED_BUFFERS, &minUndequeuedBuffers); |
| if (err == NO_ERROR) { |
| err = mGraphicBufferProducer->setMaxDequeuedBufferCount( |
| bufferCount - minUndequeuedBuffers); |
| } |
| } |
| |
| ALOGE_IF(err, "IGraphicBufferProducer::setBufferCount(%d) returned %s", |
| bufferCount, strerror(-err)); |
| |
| return err; |
| } |
| |
| int Surface::setMaxDequeuedBufferCount(int maxDequeuedBuffers) { |
| ATRACE_CALL(); |
| ALOGV("Surface::setMaxDequeuedBufferCount"); |
| Mutex::Autolock lock(mMutex); |
| |
| status_t err = mGraphicBufferProducer->setMaxDequeuedBufferCount( |
| maxDequeuedBuffers); |
| ALOGE_IF(err, "IGraphicBufferProducer::setMaxDequeuedBufferCount(%d) " |
| "returned %s", maxDequeuedBuffers, strerror(-err)); |
| |
| return err; |
| } |
| |
| int Surface::setAsyncMode(bool async) { |
| ATRACE_CALL(); |
| ALOGV("Surface::setAsyncMode"); |
| Mutex::Autolock lock(mMutex); |
| |
| status_t err = mGraphicBufferProducer->setAsyncMode(async); |
| ALOGE_IF(err, "IGraphicBufferProducer::setAsyncMode(%d) returned %s", |
| async, strerror(-err)); |
| |
| return err; |
| } |
| |
| int Surface::setSharedBufferMode(bool sharedBufferMode) { |
| ATRACE_CALL(); |
| ALOGV("Surface::setSharedBufferMode (%d)", sharedBufferMode); |
| Mutex::Autolock lock(mMutex); |
| |
| status_t err = mGraphicBufferProducer->setSharedBufferMode( |
| sharedBufferMode); |
| if (err == NO_ERROR) { |
| mSharedBufferMode = sharedBufferMode; |
| } |
| ALOGE_IF(err, "IGraphicBufferProducer::setSharedBufferMode(%d) returned" |
| "%s", sharedBufferMode, strerror(-err)); |
| |
| return err; |
| } |
| |
| int Surface::setAutoRefresh(bool autoRefresh) { |
| ATRACE_CALL(); |
| ALOGV("Surface::setAutoRefresh (%d)", autoRefresh); |
| Mutex::Autolock lock(mMutex); |
| |
| status_t err = mGraphicBufferProducer->setAutoRefresh(autoRefresh); |
| if (err == NO_ERROR) { |
| mAutoRefresh = autoRefresh; |
| } |
| ALOGE_IF(err, "IGraphicBufferProducer::setAutoRefresh(%d) returned %s", |
| autoRefresh, strerror(-err)); |
| return err; |
| } |
| |
| int Surface::setBuffersDimensions(uint32_t width, uint32_t height) |
| { |
| ATRACE_CALL(); |
| ALOGV("Surface::setBuffersDimensions"); |
| |
| if ((width && !height) || (!width && height)) |
| return BAD_VALUE; |
| |
| Mutex::Autolock lock(mMutex); |
| if (width != mReqWidth || height != mReqHeight) { |
| mSharedBufferSlot = BufferItem::INVALID_BUFFER_SLOT; |
| } |
| mReqWidth = width; |
| mReqHeight = height; |
| return NO_ERROR; |
| } |
| |
| int Surface::setBuffersUserDimensions(uint32_t width, uint32_t height) |
| { |
| ATRACE_CALL(); |
| ALOGV("Surface::setBuffersUserDimensions"); |
| |
| if ((width && !height) || (!width && height)) |
| return BAD_VALUE; |
| |
| Mutex::Autolock lock(mMutex); |
| if (width != mUserWidth || height != mUserHeight) { |
| mSharedBufferSlot = BufferItem::INVALID_BUFFER_SLOT; |
| } |
| mUserWidth = width; |
| mUserHeight = height; |
| return NO_ERROR; |
| } |
| |
| int Surface::setBuffersFormat(PixelFormat format) |
| { |
| ALOGV("Surface::setBuffersFormat"); |
| |
| Mutex::Autolock lock(mMutex); |
| if (format != mReqFormat) { |
| mSharedBufferSlot = BufferItem::INVALID_BUFFER_SLOT; |
| } |
| mReqFormat = format; |
| return NO_ERROR; |
| } |
| |
| int Surface::setScalingMode(int mode) |
| { |
| ATRACE_CALL(); |
| ALOGV("Surface::setScalingMode(%d)", mode); |
| |
| switch (mode) { |
| case NATIVE_WINDOW_SCALING_MODE_FREEZE: |
| case NATIVE_WINDOW_SCALING_MODE_SCALE_TO_WINDOW: |
| case NATIVE_WINDOW_SCALING_MODE_SCALE_CROP: |
| case NATIVE_WINDOW_SCALING_MODE_NO_SCALE_CROP: |
| break; |
| default: |
| ALOGE("unknown scaling mode: %d", mode); |
| return BAD_VALUE; |
| } |
| |
| Mutex::Autolock lock(mMutex); |
| mScalingMode = mode; |
| return NO_ERROR; |
| } |
| |
| int Surface::setBuffersTransform(uint32_t transform) |
| { |
| ATRACE_CALL(); |
| ALOGV("Surface::setBuffersTransform"); |
| Mutex::Autolock lock(mMutex); |
| mTransform = transform; |
| return NO_ERROR; |
| } |
| |
| int Surface::setBuffersStickyTransform(uint32_t transform) |
| { |
| ATRACE_CALL(); |
| ALOGV("Surface::setBuffersStickyTransform"); |
| Mutex::Autolock lock(mMutex); |
| mStickyTransform = transform; |
| return NO_ERROR; |
| } |
| |
| int Surface::setBuffersTimestamp(int64_t timestamp) |
| { |
| ALOGV("Surface::setBuffersTimestamp"); |
| Mutex::Autolock lock(mMutex); |
| mTimestamp = timestamp; |
| return NO_ERROR; |
| } |
| |
| int Surface::setBuffersDataSpace(android_dataspace dataSpace) |
| { |
| ALOGV("Surface::setBuffersDataSpace"); |
| Mutex::Autolock lock(mMutex); |
| mDataSpace = dataSpace; |
| return NO_ERROR; |
| } |
| |
| void Surface::freeAllBuffers() { |
| for (int i = 0; i < NUM_BUFFER_SLOTS; i++) { |
| mSlots[i].buffer = 0; |
| } |
| } |
| |
| void Surface::setSurfaceDamage(android_native_rect_t* rects, size_t numRects) { |
| ATRACE_CALL(); |
| ALOGV("Surface::setSurfaceDamage"); |
| Mutex::Autolock lock(mMutex); |
| |
| if (mConnectedToCpu || numRects == 0) { |
| mDirtyRegion = Region::INVALID_REGION; |
| return; |
| } |
| |
| mDirtyRegion.clear(); |
| for (size_t r = 0; r < numRects; ++r) { |
| // We intentionally flip top and bottom here, since because they're |
| // specified with a bottom-left origin, top > bottom, which fails |
| // validation in the Region class. We will fix this up when we flip to a |
| // top-left origin in queueBuffer. |
| Rect rect(rects[r].left, rects[r].bottom, rects[r].right, rects[r].top); |
| mDirtyRegion.orSelf(rect); |
| } |
| } |
| |
| // ---------------------------------------------------------------------- |
| // the lock/unlock APIs must be used from the same thread |
| |
| static status_t copyBlt( |
| const sp<GraphicBuffer>& dst, |
| const sp<GraphicBuffer>& src, |
| const Region& reg) |
| { |
| // src and dst with, height and format must be identical. no verification |
| // is done here. |
| status_t err; |
| uint8_t* src_bits = NULL; |
| err = src->lock(GRALLOC_USAGE_SW_READ_OFTEN, reg.bounds(), |
| reinterpret_cast<void**>(&src_bits)); |
| ALOGE_IF(err, "error locking src buffer %s", strerror(-err)); |
| |
| uint8_t* dst_bits = NULL; |
| err = dst->lock(GRALLOC_USAGE_SW_WRITE_OFTEN, reg.bounds(), |
| reinterpret_cast<void**>(&dst_bits)); |
| ALOGE_IF(err, "error locking dst buffer %s", strerror(-err)); |
| |
| Region::const_iterator head(reg.begin()); |
| Region::const_iterator tail(reg.end()); |
| if (head != tail && src_bits && dst_bits) { |
| const size_t bpp = bytesPerPixel(src->format); |
| const size_t dbpr = static_cast<uint32_t>(dst->stride) * bpp; |
| const size_t sbpr = static_cast<uint32_t>(src->stride) * bpp; |
| |
| while (head != tail) { |
| const Rect& r(*head++); |
| int32_t h = r.height(); |
| if (h <= 0) continue; |
| size_t size = static_cast<uint32_t>(r.width()) * bpp; |
| uint8_t const * s = src_bits + |
| static_cast<uint32_t>(r.left + src->stride * r.top) * bpp; |
| uint8_t * d = dst_bits + |
| static_cast<uint32_t>(r.left + dst->stride * r.top) * bpp; |
| if (dbpr==sbpr && size==sbpr) { |
| size *= static_cast<size_t>(h); |
| h = 1; |
| } |
| do { |
| memcpy(d, s, size); |
| d += dbpr; |
| s += sbpr; |
| } while (--h > 0); |
| } |
| } |
| |
| if (src_bits) |
| src->unlock(); |
| |
| if (dst_bits) |
| dst->unlock(); |
| |
| return err; |
| } |
| |
| // ---------------------------------------------------------------------------- |
| |
| status_t Surface::lock( |
| ANativeWindow_Buffer* outBuffer, ARect* inOutDirtyBounds) |
| { |
| if (mLockedBuffer != 0) { |
| ALOGE("Surface::lock failed, already locked"); |
| return INVALID_OPERATION; |
| } |
| |
| if (!mConnectedToCpu) { |
| int err = Surface::connect(NATIVE_WINDOW_API_CPU); |
| if (err) { |
| return err; |
| } |
| // we're intending to do software rendering from this point |
| setUsage(GRALLOC_USAGE_SW_READ_OFTEN | GRALLOC_USAGE_SW_WRITE_OFTEN); |
| } |
| |
| ANativeWindowBuffer* out; |
| int fenceFd = -1; |
| status_t err = dequeueBuffer(&out, &fenceFd); |
| ALOGE_IF(err, "dequeueBuffer failed (%s)", strerror(-err)); |
| if (err == NO_ERROR) { |
| sp<GraphicBuffer> backBuffer(GraphicBuffer::getSelf(out)); |
| const Rect bounds(backBuffer->width, backBuffer->height); |
| |
| Region newDirtyRegion; |
| if (inOutDirtyBounds) { |
| newDirtyRegion.set(static_cast<Rect const&>(*inOutDirtyBounds)); |
| newDirtyRegion.andSelf(bounds); |
| } else { |
| newDirtyRegion.set(bounds); |
| } |
| |
| // figure out if we can copy the frontbuffer back |
| const sp<GraphicBuffer>& frontBuffer(mPostedBuffer); |
| const bool canCopyBack = (frontBuffer != 0 && |
| backBuffer->width == frontBuffer->width && |
| backBuffer->height == frontBuffer->height && |
| backBuffer->format == frontBuffer->format); |
| |
| if (canCopyBack) { |
| // copy the area that is invalid and not repainted this round |
| const Region copyback(mDirtyRegion.subtract(newDirtyRegion)); |
| if (!copyback.isEmpty()) |
| copyBlt(backBuffer, frontBuffer, copyback); |
| } else { |
| // if we can't copy-back anything, modify the user's dirty |
| // region to make sure they redraw the whole buffer |
| newDirtyRegion.set(bounds); |
| mDirtyRegion.clear(); |
| Mutex::Autolock lock(mMutex); |
| for (size_t i=0 ; i<NUM_BUFFER_SLOTS ; i++) { |
| mSlots[i].dirtyRegion.clear(); |
| } |
| } |
| |
| |
| { // scope for the lock |
| Mutex::Autolock lock(mMutex); |
| int backBufferSlot(getSlotFromBufferLocked(backBuffer.get())); |
| if (backBufferSlot >= 0) { |
| Region& dirtyRegion(mSlots[backBufferSlot].dirtyRegion); |
| mDirtyRegion.subtract(dirtyRegion); |
| dirtyRegion = newDirtyRegion; |
| } |
| } |
| |
| mDirtyRegion.orSelf(newDirtyRegion); |
| if (inOutDirtyBounds) { |
| *inOutDirtyBounds = newDirtyRegion.getBounds(); |
| } |
| |
| void* vaddr; |
| status_t res = backBuffer->lockAsync( |
| GRALLOC_USAGE_SW_READ_OFTEN | GRALLOC_USAGE_SW_WRITE_OFTEN, |
| newDirtyRegion.bounds(), &vaddr, fenceFd); |
| |
| ALOGW_IF(res, "failed locking buffer (handle = %p)", |
| backBuffer->handle); |
| |
| if (res != 0) { |
| err = INVALID_OPERATION; |
| } else { |
| mLockedBuffer = backBuffer; |
| outBuffer->width = backBuffer->width; |
| outBuffer->height = backBuffer->height; |
| outBuffer->stride = backBuffer->stride; |
| outBuffer->format = backBuffer->format; |
| outBuffer->bits = vaddr; |
| } |
| } |
| return err; |
| } |
| |
| status_t Surface::unlockAndPost() |
| { |
| if (mLockedBuffer == 0) { |
| ALOGE("Surface::unlockAndPost failed, no locked buffer"); |
| return INVALID_OPERATION; |
| } |
| |
| int fd = -1; |
| status_t err = mLockedBuffer->unlockAsync(&fd); |
| ALOGE_IF(err, "failed unlocking buffer (%p)", mLockedBuffer->handle); |
| |
| err = queueBuffer(mLockedBuffer.get(), fd); |
| ALOGE_IF(err, "queueBuffer (handle=%p) failed (%s)", |
| mLockedBuffer->handle, strerror(-err)); |
| |
| mPostedBuffer = mLockedBuffer; |
| mLockedBuffer = 0; |
| return err; |
| } |
| |
| bool Surface::waitForNextFrame(uint64_t lastFrame, nsecs_t timeout) { |
| Mutex::Autolock lock(mMutex); |
| uint64_t currentFrame = mGraphicBufferProducer->getNextFrameNumber(); |
| if (currentFrame > lastFrame) { |
| return true; |
| } |
| return mQueueBufferCondition.waitRelative(mMutex, timeout) == OK; |
| } |
| |
| status_t Surface::getUniqueId(uint64_t* outId) const { |
| Mutex::Autolock lock(mMutex); |
| return mGraphicBufferProducer->getUniqueId(outId); |
| } |
| |
| namespace view { |
| |
| status_t Surface::writeToParcel(Parcel* parcel) const { |
| return writeToParcel(parcel, false); |
| } |
| |
| status_t Surface::writeToParcel(Parcel* parcel, bool nameAlreadyWritten) const { |
| if (parcel == nullptr) return BAD_VALUE; |
| |
| status_t res = OK; |
| |
| if (!nameAlreadyWritten) res = parcel->writeString16(name); |
| |
| if (res == OK) { |
| res = parcel->writeStrongBinder( |
| IGraphicBufferProducer::asBinder(graphicBufferProducer)); |
| } |
| return res; |
| } |
| |
| status_t Surface::readFromParcel(const Parcel* parcel) { |
| return readFromParcel(parcel, false); |
| } |
| |
| status_t Surface::readFromParcel(const Parcel* parcel, bool nameAlreadyRead) { |
| if (parcel == nullptr) return BAD_VALUE; |
| |
| if (!nameAlreadyRead) { |
| name = readMaybeEmptyString16(parcel); |
| } |
| |
| sp<IBinder> binder; |
| |
| status_t res = parcel->readStrongBinder(&binder); |
| if (res != OK) return res; |
| |
| graphicBufferProducer = interface_cast<IGraphicBufferProducer>(binder); |
| |
| return OK; |
| } |
| |
| String16 Surface::readMaybeEmptyString16(const Parcel* parcel) { |
| size_t len; |
| const char16_t* str = parcel->readString16Inplace(&len); |
| if (str != nullptr) { |
| return String16(str, len); |
| } else { |
| return String16(); |
| } |
| } |
| |
| } // namespace view |
| |
| }; // namespace android |