bunnei
4 years ago
3 changed files with 1021 additions and 2 deletions
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4src/core/CMakeLists.txt
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936src/core/hle/service/nvflinger/buffer_queue_producer.cpp
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83src/core/hle/service/nvflinger/buffer_queue_producer.h
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// SPDX-License-Identifier: GPL-3.0-or-later
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// Copyright 2021 yuzu Emulator Project
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// Copyright 2014 The Android Open Source Project
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// Parts of this implementation were base on:
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// https://cs.android.com/android/platform/superproject/+/android-5.1.1_r38:frameworks/native/libs/gui/BufferQueueProducer.cpp
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#include "common/assert.h"
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#include "common/logging/log.h"
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#include "common/settings.h"
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#include "core/core.h"
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#include "core/hle/kernel/hle_ipc.h"
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#include "core/hle/kernel/k_event.h"
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#include "core/hle/kernel/k_readable_event.h"
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#include "core/hle/kernel/k_writable_event.h"
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#include "core/hle/kernel/kernel.h"
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#include "core/hle/service/kernel_helpers.h"
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#include "core/hle/service/nvdrv/nvdrv.h"
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#include "core/hle/service/nvflinger/buffer_queue_core.h"
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#include "core/hle/service/nvflinger/buffer_queue_producer.h"
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#include "core/hle/service/nvflinger/consumer_listener.h"
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#include "core/hle/service/nvflinger/parcel.h"
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#include "core/hle/service/nvflinger/ui/graphic_buffer.h"
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#include "core/hle/service/nvflinger/window.h"
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#include "core/hle/service/vi/vi.h"
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namespace android { |
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BufferQueueProducer::BufferQueueProducer(Service::KernelHelpers::ServiceContext& service_context_, |
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std::shared_ptr<BufferQueueCore> buffer_queue_core_) |
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: service_context{service_context_}, core{std::move(buffer_queue_core_)}, slots(core->slots) { |
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buffer_wait_event = service_context.CreateEvent("BufferQueue:WaitEvent"); |
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} |
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BufferQueueProducer::~BufferQueueProducer() { |
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service_context.CloseEvent(buffer_wait_event); |
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} |
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Status BufferQueueProducer::RequestBuffer(s32 slot, std::shared_ptr<GraphicBuffer>* buf) { |
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LOG_DEBUG(Service_NVFlinger, "slot {}", slot); |
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BufferQueueCore::AutoLock lock(core); |
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if (core->is_abandoned) { |
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LOG_ERROR(Service_NVFlinger, "BufferQueue has been abandoned"); |
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return Status::NoInit; |
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} |
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if (slot < 0 || slot >= BufferQueueDefs::NUM_BUFFER_SLOTS) { |
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LOG_ERROR(Service_NVFlinger, "slot index {} out of range [0, {})", slot, |
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BufferQueueDefs::NUM_BUFFER_SLOTS); |
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return Status::BadValue; |
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} else if (slots[slot].buffer_state != BufferState::Dequeued) { |
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LOG_ERROR(Service_NVFlinger, "slot {} is not owned by the producer (state = {})", slot, |
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slots[slot].buffer_state); |
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return Status::BadValue; |
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} |
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slots[slot].request_buffer_called = true; |
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*buf = slots[slot].graphic_buffer; |
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return Status::NoError; |
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} |
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Status BufferQueueProducer::SetBufferCount(s32 buffer_count) { |
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LOG_DEBUG(Service_NVFlinger, "count = {}", buffer_count); |
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std::shared_ptr<IConsumerListener> listener; |
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{ |
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BufferQueueCore::AutoLock lock(core); |
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core->WaitWhileAllocatingLocked(); |
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if (core->is_abandoned) { |
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LOG_ERROR(Service_NVFlinger, "BufferQueue has been abandoned"); |
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return Status::NoInit; |
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} |
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if (buffer_count > BufferQueueDefs::NUM_BUFFER_SLOTS) { |
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LOG_ERROR(Service_NVFlinger, "buffer_count {} too large (max {})", buffer_count, |
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BufferQueueDefs::NUM_BUFFER_SLOTS); |
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return Status::BadValue; |
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} |
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// There must be no dequeued buffers when changing the buffer count.
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for (s32 s{}; s < BufferQueueDefs::NUM_BUFFER_SLOTS; ++s) { |
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if (slots[s].buffer_state == BufferState::Dequeued) { |
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LOG_ERROR(Service_NVFlinger, "buffer owned by producer"); |
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return Status::BadValue; |
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} |
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} |
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if (buffer_count == 0) { |
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core->override_max_buffer_count = 0; |
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core->SignalDequeueCondition(); |
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return Status::NoError; |
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} |
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const s32 min_buffer_slots = core->GetMinMaxBufferCountLocked(false); |
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if (buffer_count < min_buffer_slots) { |
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LOG_ERROR(Service_NVFlinger, "requested buffer count {} is less than minimum {}", |
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buffer_count, min_buffer_slots); |
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return Status::BadValue; |
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} |
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// Here we are guaranteed that the producer doesn't have any dequeued buffers and will
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// release all of its buffer references.
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if (core->GetPreallocatedBufferCountLocked() <= 0) { |
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core->FreeAllBuffersLocked(); |
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} |
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core->override_max_buffer_count = buffer_count; |
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core->SignalDequeueCondition(); |
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buffer_wait_event->GetWritableEvent().Signal(); |
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listener = core->consumer_listener; |
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} |
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// Call back without lock held
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if (listener != nullptr) { |
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listener->OnBuffersReleased(); |
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} |
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return Status::NoError; |
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} |
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Status BufferQueueProducer::WaitForFreeSlotThenRelock(bool async, s32* found, |
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Status* returnFlags) const { |
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bool try_again = true; |
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while (try_again) { |
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if (core->is_abandoned) { |
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LOG_ERROR(Service_NVFlinger, "BufferQueue has been abandoned"); |
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return Status::NoInit; |
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} |
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const s32 max_buffer_count = core->GetMaxBufferCountLocked(async); |
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if (async && core->override_max_buffer_count) { |
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if (core->override_max_buffer_count < max_buffer_count) { |
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LOG_ERROR(Service_NVFlinger, "async mode is invalid with buffer count override"); |
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return Status::BadValue; |
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} |
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} |
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// Free up any buffers that are in slots beyond the max buffer count
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for (s32 s = max_buffer_count; s < BufferQueueDefs::NUM_BUFFER_SLOTS; ++s) { |
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ASSERT(slots[s].buffer_state == BufferState::Free); |
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if (slots[s].graphic_buffer != nullptr) { |
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core->FreeBufferLocked(s); |
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*returnFlags |= Status::ReleaseAllBuffers; |
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} |
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} |
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s32 dequeued_count{}; |
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s32 acquired_count{}; |
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for (s32 s{}; s < max_buffer_count; ++s) { |
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switch (slots[s].buffer_state) { |
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case BufferState::Dequeued: |
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++dequeued_count; |
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break; |
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case BufferState::Acquired: |
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++acquired_count; |
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break; |
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default: |
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break; |
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} |
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} |
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// Producers are not allowed to dequeue more than one buffer if they did not set a buffer
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// count
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if (!core->override_max_buffer_count && dequeued_count) { |
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LOG_ERROR(Service_NVFlinger, |
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"can't dequeue multiple buffers without setting the buffer count"); |
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return Status::InvalidOperation; |
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} |
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// See whether a buffer has been queued since the last SetBufferCount so we know whether to
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// perform the min undequeued buffers check below
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if (core->buffer_has_been_queued) { |
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// Make sure the producer is not trying to dequeue more buffers than allowed
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const s32 new_undequeued_count = max_buffer_count - (dequeued_count + 1); |
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const s32 min_undequeued_count = core->GetMinUndequeuedBufferCountLocked(async); |
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if (new_undequeued_count < min_undequeued_count) { |
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LOG_ERROR(Service_NVFlinger, |
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"min undequeued buffer count({}) exceeded (dequeued={} undequeued={})", |
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min_undequeued_count, dequeued_count, new_undequeued_count); |
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return Status::InvalidOperation; |
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} |
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} |
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*found = BufferQueueCore::INVALID_BUFFER_SLOT; |
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// If we disconnect and reconnect quickly, we can be in a state where our slots are empty
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// but we have many buffers in the queue. This can cause us to run out of memory if we
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// outrun the consumer. Wait here if it looks like we have too many buffers queued up.
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const bool too_many_buffers = core->queue.size() > static_cast<size_t>(max_buffer_count); |
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if (too_many_buffers) { |
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LOG_ERROR(Service_NVFlinger, "queue size is {}, waiting", core->queue.size()); |
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} else { |
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if (!core->free_buffers.empty()) { |
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auto slot = core->free_buffers.begin(); |
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*found = *slot; |
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core->free_buffers.erase(slot); |
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} else if (core->allow_allocation && !core->free_slots.empty()) { |
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auto slot = core->free_slots.begin(); |
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// Only return free slots up to the max buffer count
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if (*slot < max_buffer_count) { |
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*found = *slot; |
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core->free_slots.erase(slot); |
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} |
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} |
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} |
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// If no buffer is found, or if the queue has too many buffers outstanding, wait for a
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// buffer to be acquired or released, or for the max buffer count to change.
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try_again = (*found == BufferQueueCore::INVALID_BUFFER_SLOT) || too_many_buffers; |
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if (try_again) { |
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// Return an error if we're in non-blocking mode (producer and consumer are controlled
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// by the application).
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if (core->dequeue_buffer_cannot_block && |
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(acquired_count <= core->max_acquired_buffer_count)) { |
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return Status::WouldBlock; |
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} |
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if (!core->WaitForDequeueCondition()) { |
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// We are no longer running
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return Status::NoError; |
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} |
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} |
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} |
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return Status::NoError; |
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} |
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Status BufferQueueProducer::DequeueBuffer(s32* out_slot, Fence* out_fence, bool async, u32 width, |
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u32 height, PixelFormat format, u32 usage) { |
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{ BufferQueueCore::AutoLock lock(core); } |
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LOG_DEBUG(Service_NVFlinger, "async={} w={} h={} format={}, usage={}", async ? "true" : "false", |
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width, height, format, usage); |
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if ((width && !height) || (!width && height)) { |
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LOG_ERROR(Service_NVFlinger, "invalid size: w={} h={}", width, height); |
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return Status::BadValue; |
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} |
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Status return_flags = Status::NoError; |
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bool attached_by_consumer = false; |
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{ |
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BufferQueueCore::AutoLock lock(core); |
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core->WaitWhileAllocatingLocked(); |
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if (format == PixelFormat::NoFormat) { |
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format = core->default_buffer_format; |
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} |
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// Enable the usage bits the consumer requested
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usage |= core->consumer_usage_bit; |
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const bool use_default_size = !width && !height; |
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if (use_default_size) { |
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width = core->default_width; |
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height = core->default_height; |
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} |
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s32 found = BufferItem::INVALID_BUFFER_SLOT; |
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while (found == BufferItem::INVALID_BUFFER_SLOT) { |
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Status status = WaitForFreeSlotThenRelock(async, &found, &return_flags); |
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if (status != Status::NoError) { |
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return status; |
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} |
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// This should not happen
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if (found == BufferQueueCore::INVALID_BUFFER_SLOT) { |
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LOG_DEBUG(Service_NVFlinger, "no available buffer slots"); |
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return Status::Busy; |
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} |
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const std::shared_ptr<GraphicBuffer>& buffer(slots[found].graphic_buffer); |
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// If we are not allowed to allocate new buffers, WaitForFreeSlotThenRelock must have
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// returned a slot containing a buffer. If this buffer would require reallocation to
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// meet the requested attributes, we free it and attempt to get another one.
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if (!core->allow_allocation) { |
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if (buffer->NeedsReallocation(width, height, format, usage)) { |
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core->FreeBufferLocked(found); |
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found = BufferItem::INVALID_BUFFER_SLOT; |
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continue; |
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} |
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} |
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} |
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*out_slot = found; |
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attached_by_consumer = slots[found].attached_by_consumer; |
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slots[found].buffer_state = BufferState::Dequeued; |
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const std::shared_ptr<GraphicBuffer>& buffer(slots[found].graphic_buffer); |
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if ((buffer == nullptr) || buffer->NeedsReallocation(width, height, format, usage)) { |
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slots[found].acquire_called = false; |
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slots[found].graphic_buffer = nullptr; |
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slots[found].request_buffer_called = false; |
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slots[found].fence = Fence::NoFence(); |
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core->buffer_age = 0; |
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return_flags |= Status::BufferNeedsReallocation; |
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} else { |
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// We add 1 because that will be the frame number when this buffer
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// is queued
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core->buffer_age = core->frame_counter + 1 - slots[found].frame_number; |
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} |
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LOG_DEBUG(Service_NVFlinger, "setting buffer age to {}", core->buffer_age); |
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*out_fence = slots[found].fence; |
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slots[found].fence = Fence::NoFence(); |
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} |
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if ((return_flags & Status::BufferNeedsReallocation) != Status::None) { |
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LOG_DEBUG(Service_NVFlinger, "allocating a new buffer for slot {}", *out_slot); |
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auto graphic_buffer = std::make_shared<GraphicBuffer>(width, height, format, usage); |
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if (graphic_buffer == nullptr) { |
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LOG_ERROR(Service_NVFlinger, "creating GraphicBuffer failed"); |
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return Status::NoMemory; |
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} |
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{ |
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BufferQueueCore::AutoLock lock(core); |
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if (core->is_abandoned) { |
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LOG_ERROR(Service_NVFlinger, "BufferQueue has been abandoned"); |
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return Status::NoInit; |
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} |
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slots[*out_slot].graphic_buffer = graphic_buffer; |
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} |
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} |
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if (attached_by_consumer) { |
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return_flags |= Status::BufferNeedsReallocation; |
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} |
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LOG_DEBUG(Service_NVFlinger, "returning slot={} frame={}, flags={}", *out_slot, |
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slots[*out_slot].frame_number, return_flags); |
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return return_flags; |
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} |
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Status BufferQueueProducer::DetachBuffer(s32 slot) { |
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LOG_DEBUG(Service_NVFlinger, "slot {}", slot); |
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BufferQueueCore::AutoLock lock(core); |
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if (core->is_abandoned) { |
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LOG_ERROR(Service_NVFlinger, "BufferQueue has been abandoned"); |
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return Status::NoInit; |
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} |
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if (slot < 0 || slot >= BufferQueueDefs::NUM_BUFFER_SLOTS) { |
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LOG_ERROR(Service_NVFlinger, "slot {} out of range [0, {})", slot, |
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BufferQueueDefs::NUM_BUFFER_SLOTS); |
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return Status::BadValue; |
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} else if (slots[slot].buffer_state != BufferState::Dequeued) { |
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LOG_ERROR(Service_NVFlinger, "slot {} is not owned by the producer (state = {})", slot, |
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slots[slot].buffer_state); |
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return Status::BadValue; |
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} else if (!slots[slot].request_buffer_called) { |
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LOG_ERROR(Service_NVFlinger, "buffer in slot {} has not been requested", slot); |
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return Status::BadValue; |
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} |
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core->FreeBufferLocked(slot); |
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core->SignalDequeueCondition(); |
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return Status::NoError; |
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} |
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Status BufferQueueProducer::DetachNextBuffer(std::shared_ptr<GraphicBuffer>* out_buffer, |
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Fence* out_fence) { |
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if (out_buffer == nullptr) { |
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LOG_ERROR(Service_NVFlinger, "out_buffer must not be nullptr"); |
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return Status::BadValue; |
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} else if (out_fence == nullptr) { |
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LOG_ERROR(Service_NVFlinger, "out_fence must not be nullptr"); |
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return Status::BadValue; |
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} |
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BufferQueueCore::AutoLock lock(core); |
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core->WaitWhileAllocatingLocked(); |
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if (core->is_abandoned) { |
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LOG_ERROR(Service_NVFlinger, "BufferQueue has been abandoned"); |
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return Status::NoInit; |
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} |
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if (core->free_buffers.empty()) { |
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return Status::NoMemory; |
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} |
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const s32 found = core->free_buffers.front(); |
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core->free_buffers.remove(found); |
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LOG_DEBUG(Service_NVFlinger, "Detached slot {}", found); |
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*out_buffer = slots[found].graphic_buffer; |
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*out_fence = slots[found].fence; |
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core->FreeBufferLocked(found); |
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return Status::NoError; |
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} |
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Status BufferQueueProducer::AttachBuffer(s32* out_slot, |
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const std::shared_ptr<GraphicBuffer>& buffer) { |
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if (out_slot == nullptr) { |
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LOG_ERROR(Service_NVFlinger, "out_slot must not be nullptr"); |
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return Status::BadValue; |
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} else if (buffer == nullptr) { |
||||
|
LOG_ERROR(Service_NVFlinger, "Cannot attach nullptr buffer"); |
||||
|
return Status::BadValue; |
||||
|
} |
||||
|
|
||||
|
BufferQueueCore::AutoLock lock(core); |
||||
|
core->WaitWhileAllocatingLocked(); |
||||
|
|
||||
|
Status return_flags = Status::NoError; |
||||
|
s32 found{}; |
||||
|
|
||||
|
const auto status = WaitForFreeSlotThenRelock(false, &found, &return_flags); |
||||
|
if (status != Status::NoError) { |
||||
|
return status; |
||||
|
} |
||||
|
|
||||
|
if (found == BufferQueueCore::INVALID_BUFFER_SLOT) { |
||||
|
LOG_ERROR(Service_NVFlinger, "No available buffer slots"); |
||||
|
return Status::Busy; |
||||
|
} |
||||
|
|
||||
|
*out_slot = found; |
||||
|
|
||||
|
LOG_DEBUG(Service_NVFlinger, "Returning slot {} flags={}", *out_slot, return_flags); |
||||
|
|
||||
|
slots[*out_slot].graphic_buffer = buffer; |
||||
|
slots[*out_slot].buffer_state = BufferState::Dequeued; |
||||
|
slots[*out_slot].fence = Fence::NoFence(); |
||||
|
slots[*out_slot].request_buffer_called = true; |
||||
|
|
||||
|
return return_flags; |
||||
|
} |
||||
|
|
||||
|
Status BufferQueueProducer::QueueBuffer(s32 slot, const QueueBufferInput& input, |
||||
|
QueueBufferOutput* output) { |
||||
|
s64 timestamp{}; |
||||
|
bool is_auto_timestamp{}; |
||||
|
Rect crop; |
||||
|
NativeWindowScalingMode scaling_mode{}; |
||||
|
NativeWindowTransform transform; |
||||
|
u32 sticky_transform_{}; |
||||
|
bool async{}; |
||||
|
s32 swap_interval{}; |
||||
|
Fence fence{}; |
||||
|
|
||||
|
input.Deflate(×tamp, &is_auto_timestamp, &crop, &scaling_mode, &transform, |
||||
|
&sticky_transform_, &async, &swap_interval, &fence); |
||||
|
|
||||
|
switch (scaling_mode) { |
||||
|
case NativeWindowScalingMode::Freeze: |
||||
|
case NativeWindowScalingMode::ScaleToWindow: |
||||
|
case NativeWindowScalingMode::ScaleCrop: |
||||
|
case NativeWindowScalingMode::NoScaleCrop: |
||||
|
break; |
||||
|
default: |
||||
|
LOG_ERROR(Service_NVFlinger, "unknown scaling mode {}", scaling_mode); |
||||
|
return Status::BadValue; |
||||
|
} |
||||
|
|
||||
|
std::shared_ptr<IConsumerListener> frameAvailableListener; |
||||
|
std::shared_ptr<IConsumerListener> frameReplacedListener; |
||||
|
s32 callback_ticket{}; |
||||
|
BufferItem item; |
||||
|
|
||||
|
{ |
||||
|
BufferQueueCore::AutoLock lock(core); |
||||
|
|
||||
|
if (core->is_abandoned) { |
||||
|
LOG_ERROR(Service_NVFlinger, "BufferQueue has been abandoned"); |
||||
|
return Status::NoInit; |
||||
|
} |
||||
|
|
||||
|
const s32 max_buffer_count = core->GetMaxBufferCountLocked(async); |
||||
|
if (async && core->override_max_buffer_count) { |
||||
|
if (core->override_max_buffer_count < max_buffer_count) { |
||||
|
LOG_ERROR(Service_NVFlinger, "async mode is invalid with " |
||||
|
"buffer count override"); |
||||
|
return Status::BadValue; |
||||
|
} |
||||
|
} |
||||
|
|
||||
|
if (slot < 0 || slot >= max_buffer_count) { |
||||
|
LOG_ERROR(Service_NVFlinger, "slot index {} out of range [0, {})", slot, |
||||
|
max_buffer_count); |
||||
|
return Status::BadValue; |
||||
|
} else if (slots[slot].buffer_state != BufferState::Dequeued) { |
||||
|
LOG_ERROR(Service_NVFlinger, |
||||
|
"slot {} is not owned by the producer " |
||||
|
"(state = {})", |
||||
|
slot, slots[slot].buffer_state); |
||||
|
return Status::BadValue; |
||||
|
} else if (!slots[slot].request_buffer_called) { |
||||
|
LOG_ERROR(Service_NVFlinger, |
||||
|
"slot {} was queued without requesting " |
||||
|
"a buffer", |
||||
|
slot); |
||||
|
return Status::BadValue; |
||||
|
} |
||||
|
|
||||
|
LOG_DEBUG(Service_NVFlinger, |
||||
|
"slot={} frame={} time={} crop=[{},{},{},{}] transform={} scale={}", slot, |
||||
|
core->frame_counter + 1, timestamp, crop.Left(), crop.Top(), crop.Right(), |
||||
|
crop.Bottom(), transform, scaling_mode); |
||||
|
|
||||
|
const std::shared_ptr<GraphicBuffer>& graphic_buffer(slots[slot].graphic_buffer); |
||||
|
Rect buffer_rect(graphic_buffer->Width(), graphic_buffer->Height()); |
||||
|
Rect cropped_rect; |
||||
|
crop.Intersect(buffer_rect, &cropped_rect); |
||||
|
|
||||
|
if (cropped_rect != crop) { |
||||
|
LOG_ERROR(Service_NVFlinger, "crop rect is not contained within the buffer in slot {}", |
||||
|
slot); |
||||
|
return Status::BadValue; |
||||
|
} |
||||
|
|
||||
|
slots[slot].fence = fence; |
||||
|
slots[slot].buffer_state = BufferState::Queued; |
||||
|
++core->frame_counter; |
||||
|
slots[slot].frame_number = core->frame_counter; |
||||
|
|
||||
|
item.acquire_called = slots[slot].acquire_called; |
||||
|
item.graphic_buffer = slots[slot].graphic_buffer; |
||||
|
item.crop = crop; |
||||
|
item.transform = transform & ~NativeWindowTransform::InverseDisplay; |
||||
|
item.transform_to_display_inverse = |
||||
|
(transform & NativeWindowTransform::InverseDisplay) != NativeWindowTransform::None; |
||||
|
item.scaling_mode = static_cast<u32>(scaling_mode); |
||||
|
item.timestamp = timestamp; |
||||
|
item.is_auto_timestamp = is_auto_timestamp; |
||||
|
item.frame_number = core->frame_counter; |
||||
|
item.slot = slot; |
||||
|
item.fence = fence; |
||||
|
item.is_droppable = core->dequeue_buffer_cannot_block || async; |
||||
|
item.swap_interval = swap_interval; |
||||
|
sticky_transform = sticky_transform_; |
||||
|
|
||||
|
if (core->queue.empty()) { |
||||
|
// When the queue is empty, we can simply queue this buffer
|
||||
|
core->queue.push_back(item); |
||||
|
frameAvailableListener = core->consumer_listener; |
||||
|
} else { |
||||
|
// When the queue is not empty, we need to look at the front buffer
|
||||
|
// state to see if we need to replace it
|
||||
|
auto front(core->queue.begin()); |
||||
|
|
||||
|
if (front->is_droppable) { |
||||
|
// If the front queued buffer is still being tracked, we first
|
||||
|
// mark it as freed
|
||||
|
if (core->StillTracking(&*front)) { |
||||
|
slots[front->slot].buffer_state = BufferState::Free; |
||||
|
core->free_buffers.push_front(front->slot); |
||||
|
} |
||||
|
// Overwrite the droppable buffer with the incoming one
|
||||
|
*front = item; |
||||
|
frameReplacedListener = core->consumer_listener; |
||||
|
} else { |
||||
|
core->queue.push_back(item); |
||||
|
frameAvailableListener = core->consumer_listener; |
||||
|
} |
||||
|
} |
||||
|
|
||||
|
core->buffer_has_been_queued = true; |
||||
|
core->SignalDequeueCondition(); |
||||
|
output->Inflate(core->default_width, core->default_height, core->transform_hint, |
||||
|
static_cast<u32>(core->queue.size())); |
||||
|
|
||||
|
// Take a ticket for the callback functions
|
||||
|
callback_ticket = next_callback_ticket++; |
||||
|
} |
||||
|
|
||||
|
// Don't send the GraphicBuffer through the callback, and don't send the slot number, since the
|
||||
|
// consumer shouldn't need it
|
||||
|
item.graphic_buffer.reset(); |
||||
|
item.slot = BufferItem::INVALID_BUFFER_SLOT; |
||||
|
|
||||
|
// Call back without the main BufferQueue lock held, but with the callback lock held so we can
|
||||
|
// ensure that callbacks occur in order
|
||||
|
{ |
||||
|
std::unique_lock lock(callback_mutex); |
||||
|
while (callback_ticket != current_callback_ticket) { |
||||
|
std::unique_lock<std::mutex> lk(callback_mutex); |
||||
|
callback_condition.wait(lk); |
||||
|
} |
||||
|
|
||||
|
if (frameAvailableListener != nullptr) { |
||||
|
frameAvailableListener->OnFrameAvailable(item); |
||||
|
} else if (frameReplacedListener != nullptr) { |
||||
|
frameReplacedListener->OnFrameReplaced(item); |
||||
|
} |
||||
|
|
||||
|
++current_callback_ticket; |
||||
|
callback_condition.notify_all(); |
||||
|
} |
||||
|
|
||||
|
return Status::NoError; |
||||
|
} |
||||
|
|
||||
|
void BufferQueueProducer::CancelBuffer(s32 slot, const Fence& fence) { |
||||
|
LOG_DEBUG(Service_NVFlinger, "slot {}", slot); |
||||
|
|
||||
|
BufferQueueCore::AutoLock lock(core); |
||||
|
|
||||
|
if (core->is_abandoned) { |
||||
|
LOG_ERROR(Service_NVFlinger, "BufferQueue has been abandoned"); |
||||
|
return; |
||||
|
} |
||||
|
|
||||
|
if (slot < 0 || slot >= BufferQueueDefs::NUM_BUFFER_SLOTS) { |
||||
|
LOG_ERROR(Service_NVFlinger, "slot index {} out of range [0, {})", slot, |
||||
|
BufferQueueDefs::NUM_BUFFER_SLOTS); |
||||
|
return; |
||||
|
} else if (slots[slot].buffer_state != BufferState::Dequeued) { |
||||
|
LOG_ERROR(Service_NVFlinger, "slot {} is not owned by the producer (state = {})", slot, |
||||
|
slots[slot].buffer_state); |
||||
|
return; |
||||
|
} |
||||
|
|
||||
|
core->free_buffers.push_front(slot); |
||||
|
slots[slot].buffer_state = BufferState::Free; |
||||
|
slots[slot].fence = fence; |
||||
|
|
||||
|
core->SignalDequeueCondition(); |
||||
|
buffer_wait_event->GetWritableEvent().Signal(); |
||||
|
} |
||||
|
|
||||
|
Status BufferQueueProducer::Query(NativeWindow what, s32* out_value) { |
||||
|
BufferQueueCore::AutoLock lock(core); |
||||
|
|
||||
|
if (out_value == nullptr) { |
||||
|
LOG_ERROR(Service_NVFlinger, "outValue was nullptr"); |
||||
|
return Status::BadValue; |
||||
|
} |
||||
|
|
||||
|
if (core->is_abandoned) { |
||||
|
LOG_ERROR(Service_NVFlinger, "BufferQueue has been abandoned"); |
||||
|
return Status::NoInit; |
||||
|
} |
||||
|
|
||||
|
s32 value{}; |
||||
|
switch (what) { |
||||
|
case NativeWindow::Width: |
||||
|
value = static_cast<s32>(core->default_width); |
||||
|
break; |
||||
|
case NativeWindow::Height: |
||||
|
value = static_cast<s32>(core->default_height); |
||||
|
break; |
||||
|
case NativeWindow::Format: |
||||
|
value = static_cast<s32>(core->default_buffer_format); |
||||
|
break; |
||||
|
case NativeWindow::MinUndequeedBuffers: |
||||
|
value = core->GetMinUndequeuedBufferCountLocked(false); |
||||
|
break; |
||||
|
case NativeWindow::StickyTransform: |
||||
|
value = static_cast<s32>(sticky_transform); |
||||
|
break; |
||||
|
case NativeWindow::ConsumerRunningBehind: |
||||
|
value = (core->queue.size() > 1); |
||||
|
break; |
||||
|
case NativeWindow::ConsumerUsageBits: |
||||
|
value = static_cast<s32>(core->consumer_usage_bit); |
||||
|
break; |
||||
|
case NativeWindow::BufferAge: |
||||
|
if (core->buffer_age > INT32_MAX) { |
||||
|
value = 0; |
||||
|
} else { |
||||
|
value = static_cast<s32>(core->buffer_age); |
||||
|
} |
||||
|
break; |
||||
|
default: |
||||
|
UNREACHABLE(); |
||||
|
return Status::BadValue; |
||||
|
} |
||||
|
|
||||
|
LOG_DEBUG(Service_NVFlinger, "what = {}, value = {}", what, value); |
||||
|
|
||||
|
*out_value = value; |
||||
|
|
||||
|
return Status::NoError; |
||||
|
} |
||||
|
|
||||
|
Status BufferQueueProducer::Connect(const std::shared_ptr<IProducerListener>& listener, |
||||
|
NativeWindowApi api, bool producer_controlled_by_app, |
||||
|
QueueBufferOutput* output) { |
||||
|
BufferQueueCore::AutoLock lock(core); |
||||
|
|
||||
|
LOG_DEBUG(Service_NVFlinger, "api = {} producer_controlled_by_app = {}", api, |
||||
|
producer_controlled_by_app); |
||||
|
|
||||
|
if (core->is_abandoned) { |
||||
|
LOG_ERROR(Service_NVFlinger, "BufferQueue has been abandoned"); |
||||
|
return Status::NoInit; |
||||
|
} |
||||
|
|
||||
|
if (core->consumer_listener == nullptr) { |
||||
|
LOG_ERROR(Service_NVFlinger, "BufferQueue has no consumer"); |
||||
|
return Status::NoInit; |
||||
|
} |
||||
|
|
||||
|
if (output == nullptr) { |
||||
|
LOG_ERROR(Service_NVFlinger, "output was nullptr"); |
||||
|
return Status::BadValue; |
||||
|
} |
||||
|
|
||||
|
if (core->connected_api != NativeWindowApi::NoConnectedApi) { |
||||
|
LOG_ERROR(Service_NVFlinger, "already connected (cur = {} req = {})", core->connected_api, |
||||
|
api); |
||||
|
return Status::BadValue; |
||||
|
} |
||||
|
|
||||
|
Status status = Status::NoError; |
||||
|
switch (api) { |
||||
|
case NativeWindowApi::Egl: |
||||
|
case NativeWindowApi::Cpu: |
||||
|
case NativeWindowApi::Media: |
||||
|
case NativeWindowApi::Camera: |
||||
|
core->connected_api = api; |
||||
|
output->Inflate(core->default_width, core->default_height, core->transform_hint, |
||||
|
static_cast<u32>(core->queue.size())); |
||||
|
core->connected_producer_listener = listener; |
||||
|
break; |
||||
|
default: |
||||
|
LOG_ERROR(Service_NVFlinger, "unknown api = {}", api); |
||||
|
status = Status::BadValue; |
||||
|
break; |
||||
|
} |
||||
|
|
||||
|
core->buffer_has_been_queued = false; |
||||
|
core->dequeue_buffer_cannot_block = |
||||
|
core->consumer_controlled_by_app && producer_controlled_by_app; |
||||
|
core->allow_allocation = true; |
||||
|
|
||||
|
return status; |
||||
|
} |
||||
|
|
||||
|
Status BufferQueueProducer::Disconnect(NativeWindowApi api) { |
||||
|
LOG_DEBUG(Service_NVFlinger, "api = {}", api); |
||||
|
|
||||
|
Status status = Status::NoError; |
||||
|
std::shared_ptr<IConsumerListener> listener; |
||||
|
|
||||
|
{ |
||||
|
BufferQueueCore::AutoLock lock(core); |
||||
|
|
||||
|
core->WaitWhileAllocatingLocked(); |
||||
|
|
||||
|
if (core->is_abandoned) { |
||||
|
// Disconnecting after the surface has been abandoned is a no-op.
|
||||
|
return Status::NoError; |
||||
|
} |
||||
|
|
||||
|
switch (api) { |
||||
|
case NativeWindowApi::Egl: |
||||
|
case NativeWindowApi::Cpu: |
||||
|
case NativeWindowApi::Media: |
||||
|
case NativeWindowApi::Camera: |
||||
|
if (core->connected_api == api) { |
||||
|
core->FreeAllBuffersLocked(); |
||||
|
core->connected_producer_listener = nullptr; |
||||
|
core->connected_api = NativeWindowApi::NoConnectedApi; |
||||
|
core->SignalDequeueCondition(); |
||||
|
buffer_wait_event->GetWritableEvent().Signal(); |
||||
|
listener = core->consumer_listener; |
||||
|
} else if (core->connected_api != NativeWindowApi::NoConnectedApi) { |
||||
|
LOG_ERROR(Service_NVFlinger, "still connected to another api (cur = {} req = {})", |
||||
|
core->connected_api, api); |
||||
|
status = Status::BadValue; |
||||
|
} |
||||
|
break; |
||||
|
default: |
||||
|
LOG_ERROR(Service_NVFlinger, "unknown api = {}", api); |
||||
|
status = Status::BadValue; |
||||
|
break; |
||||
|
} |
||||
|
} |
||||
|
|
||||
|
// Call back without lock held
|
||||
|
if (listener != nullptr) { |
||||
|
listener->OnBuffersReleased(); |
||||
|
} |
||||
|
|
||||
|
return status; |
||||
|
} |
||||
|
|
||||
|
Status BufferQueueProducer::SetPreallocatedBuffer(s32 slot, |
||||
|
const std::shared_ptr<GraphicBuffer>& buffer) { |
||||
|
LOG_DEBUG(Service_NVFlinger, "slot {}", slot); |
||||
|
|
||||
|
UNIMPLEMENTED_IF_MSG(!buffer, "buffer must be valid!"); |
||||
|
|
||||
|
if (slot < 0 || slot >= BufferQueueDefs::NUM_BUFFER_SLOTS) { |
||||
|
return Status::BadValue; |
||||
|
} |
||||
|
|
||||
|
BufferQueueCore::AutoLock lock(core); |
||||
|
|
||||
|
slots[slot] = {}; |
||||
|
slots[slot].is_preallocated = true; |
||||
|
slots[slot].graphic_buffer = buffer; |
||||
|
|
||||
|
core->override_max_buffer_count = core->GetPreallocatedBufferCountLocked(); |
||||
|
core->default_width = buffer->Width(); |
||||
|
core->default_height = buffer->Height(); |
||||
|
core->default_buffer_format = buffer->Format(); |
||||
|
|
||||
|
core->SignalDequeueCondition(); |
||||
|
buffer_wait_event->GetWritableEvent().Signal(); |
||||
|
|
||||
|
return Status::NoError; |
||||
|
} |
||||
|
|
||||
|
void BufferQueueProducer::Transact(Kernel::HLERequestContext& ctx, TransactionId code, u32 flags) { |
||||
|
Status status{Status::NoError}; |
||||
|
Parcel parcel_in{ctx.ReadBuffer()}; |
||||
|
Parcel parcel_out{}; |
||||
|
|
||||
|
switch (code) { |
||||
|
case TransactionId::Connect: { |
||||
|
const auto enable_listener = parcel_in.Read<bool>(); |
||||
|
const auto api = parcel_in.Read<NativeWindowApi>(); |
||||
|
const auto producer_controlled_by_app = parcel_in.Read<bool>(); |
||||
|
|
||||
|
UNIMPLEMENTED_IF_MSG(enable_listener, "Listener is unimplemented!"); |
||||
|
|
||||
|
std::shared_ptr<IProducerListener> listener; |
||||
|
QueueBufferOutput output{}; |
||||
|
|
||||
|
status = Connect(listener, api, producer_controlled_by_app, &output); |
||||
|
|
||||
|
parcel_out.Write(output); |
||||
|
break; |
||||
|
} |
||||
|
case TransactionId::SetPreallocatedBuffer: { |
||||
|
const auto slot = parcel_in.Read<s32>(); |
||||
|
const auto buffer = parcel_in.ReadObject<GraphicBuffer>(); |
||||
|
|
||||
|
status = SetPreallocatedBuffer(slot, buffer); |
||||
|
break; |
||||
|
} |
||||
|
case TransactionId::DequeueBuffer: { |
||||
|
const auto is_async = parcel_in.Read<bool>(); |
||||
|
const auto width = parcel_in.Read<u32>(); |
||||
|
const auto height = parcel_in.Read<u32>(); |
||||
|
const auto pixel_format = parcel_in.Read<PixelFormat>(); |
||||
|
const auto usage = parcel_in.Read<u32>(); |
||||
|
|
||||
|
s32 slot{}; |
||||
|
Fence fence{}; |
||||
|
|
||||
|
status = DequeueBuffer(&slot, &fence, is_async, width, height, pixel_format, usage); |
||||
|
|
||||
|
parcel_out.Write(slot); |
||||
|
parcel_out.WriteObject(&fence); |
||||
|
break; |
||||
|
} |
||||
|
case TransactionId::RequestBuffer: { |
||||
|
const auto slot = parcel_in.Read<s32>(); |
||||
|
|
||||
|
std::shared_ptr<GraphicBuffer> buf; |
||||
|
|
||||
|
status = RequestBuffer(slot, &buf); |
||||
|
|
||||
|
parcel_out.WriteObject(buf); |
||||
|
break; |
||||
|
} |
||||
|
case TransactionId::QueueBuffer: { |
||||
|
const auto slot = parcel_in.Read<s32>(); |
||||
|
|
||||
|
QueueBufferInput input{parcel_in}; |
||||
|
QueueBufferOutput output; |
||||
|
|
||||
|
status = QueueBuffer(slot, input, &output); |
||||
|
|
||||
|
parcel_out.Write(output); |
||||
|
break; |
||||
|
} |
||||
|
case TransactionId::Query: { |
||||
|
const auto what = parcel_in.Read<NativeWindow>(); |
||||
|
|
||||
|
s32 value{}; |
||||
|
|
||||
|
status = Query(what, &value); |
||||
|
|
||||
|
parcel_out.Write(value); |
||||
|
break; |
||||
|
} |
||||
|
case TransactionId::CancelBuffer: { |
||||
|
const auto slot = parcel_in.Read<s32>(); |
||||
|
const auto fence = parcel_in.ReadFlattened<Fence>(); |
||||
|
|
||||
|
CancelBuffer(slot, fence); |
||||
|
break; |
||||
|
} |
||||
|
case TransactionId::Disconnect: { |
||||
|
const auto api = parcel_in.Read<NativeWindowApi>(); |
||||
|
|
||||
|
status = Disconnect(api); |
||||
|
break; |
||||
|
} |
||||
|
case TransactionId::DetachBuffer: { |
||||
|
const auto slot = parcel_in.Read<s32>(); |
||||
|
|
||||
|
status = DetachBuffer(slot); |
||||
|
break; |
||||
|
} |
||||
|
case TransactionId::SetBufferCount: { |
||||
|
const auto buffer_count = parcel_in.Read<s32>(); |
||||
|
|
||||
|
status = SetBufferCount(buffer_count); |
||||
|
break; |
||||
|
} |
||||
|
case TransactionId::GetBufferHistory: { |
||||
|
LOG_WARNING(Service_NVFlinger, "(STUBBED) called, transaction=GetBufferHistory"); |
||||
|
break; |
||||
|
} |
||||
|
default: |
||||
|
ASSERT_MSG(false, "Unimplemented"); |
||||
|
} |
||||
|
|
||||
|
parcel_out.Write(status); |
||||
|
|
||||
|
ctx.WriteBuffer(parcel_out.Serialize()); |
||||
|
} |
||||
|
|
||||
|
Kernel::KReadableEvent& BufferQueueProducer::GetNativeHandle() { |
||||
|
return buffer_wait_event->GetReadableEvent(); |
||||
|
} |
||||
|
|
||||
|
} // namespace android
|
||||
@ -0,0 +1,83 @@ |
|||||
|
// SPDX-License-Identifier: GPL-3.0-or-later |
||||
|
// Copyright 2021 yuzu Emulator Project |
||||
|
// Copyright 2014 The Android Open Source Project |
||||
|
// Parts of this implementation were base on: |
||||
|
// https://cs.android.com/android/platform/superproject/+/android-5.1.1_r38:frameworks/native/include/gui/BufferQueueProducer.h |
||||
|
|
||||
|
#pragma once |
||||
|
|
||||
|
#include <condition_variable> |
||||
|
#include <memory> |
||||
|
#include <mutex> |
||||
|
|
||||
|
#include "common/common_funcs.h" |
||||
|
#include "core/hle/service/nvdrv/nvdata.h" |
||||
|
#include "core/hle/service/nvflinger/binder.h" |
||||
|
#include "core/hle/service/nvflinger/buffer_queue_defs.h" |
||||
|
#include "core/hle/service/nvflinger/buffer_slot.h" |
||||
|
#include "core/hle/service/nvflinger/graphic_buffer_producer.h" |
||||
|
#include "core/hle/service/nvflinger/pixel_format.h" |
||||
|
#include "core/hle/service/nvflinger/status.h" |
||||
|
#include "core/hle/service/nvflinger/window.h" |
||||
|
|
||||
|
namespace Kernel { |
||||
|
class KernelCore; |
||||
|
class KEvent; |
||||
|
class KReadableEvent; |
||||
|
class KWritableEvent; |
||||
|
} // namespace Kernel |
||||
|
|
||||
|
namespace Service::KernelHelpers { |
||||
|
class ServiceContext; |
||||
|
} // namespace Service::KernelHelpers |
||||
|
|
||||
|
namespace android { |
||||
|
|
||||
|
class BufferQueueCore; |
||||
|
class IProducerListener; |
||||
|
|
||||
|
class BufferQueueProducer final : public IBinder { |
||||
|
public: |
||||
|
explicit BufferQueueProducer(Service::KernelHelpers::ServiceContext& service_context_, |
||||
|
std::shared_ptr<BufferQueueCore> buffer_queue_core_); |
||||
|
~BufferQueueProducer(); |
||||
|
|
||||
|
void Transact(Kernel::HLERequestContext& ctx, android::TransactionId code, u32 flags) override; |
||||
|
|
||||
|
Kernel::KReadableEvent& GetNativeHandle() override; |
||||
|
|
||||
|
public: |
||||
|
Status RequestBuffer(s32 slot, std::shared_ptr<GraphicBuffer>* buf); |
||||
|
Status SetBufferCount(s32 buffer_count); |
||||
|
Status DequeueBuffer(s32* out_slot, android::Fence* out_fence, bool async, u32 width, |
||||
|
u32 height, PixelFormat format, u32 usage); |
||||
|
Status DetachBuffer(s32 slot); |
||||
|
Status DetachNextBuffer(std::shared_ptr<GraphicBuffer>* out_buffer, Fence* out_fence); |
||||
|
Status AttachBuffer(s32* outSlot, const std::shared_ptr<GraphicBuffer>& buffer); |
||||
|
Status QueueBuffer(s32 slot, const QueueBufferInput& input, QueueBufferOutput* output); |
||||
|
void CancelBuffer(s32 slot, const Fence& fence); |
||||
|
Status Query(NativeWindow what, s32* out_value); |
||||
|
Status Connect(const std::shared_ptr<IProducerListener>& listener, NativeWindowApi api, |
||||
|
bool producer_controlled_by_app, QueueBufferOutput* output); |
||||
|
|
||||
|
Status Disconnect(NativeWindowApi api); |
||||
|
Status SetPreallocatedBuffer(s32 slot, const std::shared_ptr<GraphicBuffer>& buffer); |
||||
|
|
||||
|
private: |
||||
|
BufferQueueProducer(const BufferQueueProducer&) = delete; |
||||
|
|
||||
|
Status WaitForFreeSlotThenRelock(bool async, s32* found, Status* returnFlags) const; |
||||
|
|
||||
|
Kernel::KEvent* buffer_wait_event{}; |
||||
|
Service::KernelHelpers::ServiceContext& service_context; |
||||
|
|
||||
|
std::shared_ptr<BufferQueueCore> core; |
||||
|
BufferQueueDefs::SlotsType& slots; |
||||
|
u32 sticky_transform{}; |
||||
|
std::mutex callback_mutex; |
||||
|
s32 next_callback_ticket{}; |
||||
|
s32 current_callback_ticket{}; |
||||
|
std::condition_variable callback_condition; |
||||
|
}; |
||||
|
|
||||
|
} // namespace android |
||||
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