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// SPDX-License-Identifier: GPL-3.0-or-later
// Copyright 2021 yuzu Emulator Project
// Copyright 2010 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/libs/gui/ConsumerBase.cpp
#include "common/assert.h"
#include "common/logging/log.h"
#include "core/hle/service/nvflinger/buffer_item.h"
#include "core/hle/service/nvflinger/buffer_queue_consumer.h"
#include "core/hle/service/nvflinger/buffer_queue_core.h"
#include "core/hle/service/nvflinger/consumer_base.h"
#include "core/hle/service/nvflinger/ui/graphic_buffer.h"
namespace Service::android {
ConsumerBase::ConsumerBase(std::unique_ptr<BufferQueueConsumer> consumer_)
: consumer{std::move(consumer_)} {}
ConsumerBase::~ConsumerBase() {
std::unique_lock lock(mutex);
ASSERT_MSG(is_abandoned, "consumer is not abandoned!");
}
void ConsumerBase::Connect(bool controlled_by_app) {
consumer->Connect(shared_from_this(), controlled_by_app);
}
void ConsumerBase::FreeBufferLocked(s32 slot_index) {
LOG_DEBUG(Service_NVFlinger, "slot_index={}", slot_index);
slots[slot_index].graphic_buffer = nullptr;
slots[slot_index].fence = Fence::NoFence();
slots[slot_index].frame_number = 0;
}
void ConsumerBase::OnFrameAvailable(const BufferItem& item) {
std::unique_lock lock(mutex);
LOG_DEBUG(Service_NVFlinger, "called");
}
void ConsumerBase::OnFrameReplaced(const BufferItem& item) {
std::unique_lock lock(mutex);
LOG_DEBUG(Service_NVFlinger, "called");
}
void ConsumerBase::OnBuffersReleased() {
std::unique_lock lock(mutex);
LOG_DEBUG(Service_NVFlinger, "called");
}
void ConsumerBase::OnSidebandStreamChanged() {}
Status ConsumerBase::AcquireBufferLocked(BufferItem* item, std::chrono::nanoseconds present_when,
u64 max_frame_number) {
if (is_abandoned) {
LOG_ERROR(Service_NVFlinger, "consumer is abandoned!");
return Status::NoInit;
}
Status err = consumer->AcquireBuffer(item, present_when, max_frame_number);
if (err != Status::NoError) {
return err;
}
if (item->graphic_buffer != nullptr) {
if (slots[item->slot].graphic_buffer != nullptr) {
FreeBufferLocked(item->slot);
}
slots[item->slot].graphic_buffer = item->graphic_buffer;
}
slots[item->slot].frame_number = item->frame_number;
slots[item->slot].fence = item->fence;
LOG_DEBUG(Service_NVFlinger, "slot={}", item->slot);
return Status::NoError;
}
Status ConsumerBase::AddReleaseFenceLocked(s32 slot,
const std::shared_ptr<GraphicBuffer> graphic_buffer,
const Fence& fence) {
LOG_DEBUG(Service_NVFlinger, "slot={}", slot);
// If consumer no longer tracks this graphic_buffer, we can safely
// drop this fence, as it will never be received by the producer.
if (!StillTracking(slot, graphic_buffer)) {
return Status::NoError;
}
slots[slot].fence = fence;
return Status::NoError;
}
Status ConsumerBase::ReleaseBufferLocked(s32 slot,
const std::shared_ptr<GraphicBuffer> graphic_buffer) {
// If consumer no longer tracks this graphic_buffer (we received a new
// buffer on the same slot), the buffer producer is definitely no longer
// tracking it.
if (!StillTracking(slot, graphic_buffer)) {
return Status::NoError;
}
LOG_DEBUG(Service_NVFlinger, "slot={}", slot);
Status err = consumer->ReleaseBuffer(slot, slots[slot].frame_number, slots[slot].fence);
if (err == Status::StaleBufferSlot) {
FreeBufferLocked(slot);
}
slots[slot].fence = Fence::NoFence();
return err;
}
bool ConsumerBase::StillTracking(s32 slot, const std::shared_ptr<GraphicBuffer> graphic_buffer) {
if (slot < 0 || slot >= BufferQueueDefs::NUM_BUFFER_SLOTS) {
return false;
}
return (slots[slot].graphic_buffer != nullptr &&
slots[slot].graphic_buffer->Handle() == graphic_buffer->Handle());
}
} // namespace Service::android
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