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// SPDX-FileCopyrightText: Copyright 2019 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include <algorithm>
#include <utility>
#include <fmt/format.h>
#include "common/assert.h"
#include "core/core.h"
#include "core/hle/kernel/k_event.h"
#include "core/hle/kernel/k_readable_event.h"
#include "core/hle/kernel/k_writable_event.h"
#include "core/hle/service/kernel_helpers.h"
#include "core/hle/service/nvflinger/buffer_item_consumer.h"
#include "core/hle/service/nvflinger/buffer_queue_consumer.h"
#include "core/hle/service/nvflinger/buffer_queue_core.h"
#include "core/hle/service/nvflinger/buffer_queue_producer.h"
#include "core/hle/service/nvflinger/hos_binder_driver_server.h"
#include "core/hle/service/vi/display/vi_display.h"
#include "core/hle/service/vi/layer/vi_layer.h"
namespace Service::VI {
struct BufferQueue {
std::shared_ptr<android::BufferQueueCore> core;
std::unique_ptr<android::BufferQueueProducer> producer;
std::unique_ptr<android::BufferQueueConsumer> consumer;
};
static BufferQueue CreateBufferQueue(KernelHelpers::ServiceContext& service_context) {
auto buffer_queue_core = std::make_shared<android::BufferQueueCore>();
return {buffer_queue_core,
std::make_unique<android::BufferQueueProducer>(service_context, buffer_queue_core),
std::make_unique<android::BufferQueueConsumer>(buffer_queue_core)};
}
Display::Display(u64 id, std::string name_,
NVFlinger::HosBinderDriverServer& hos_binder_driver_server_,
KernelHelpers::ServiceContext& service_context_, Core::System& system_)
: display_id{id}, name{std::move(name_)}, hos_binder_driver_server{hos_binder_driver_server_},
service_context{service_context_} {
vsync_event = service_context.CreateEvent(fmt::format("Display VSync Event {}", id));
}
Display::~Display() {
service_context.CloseEvent(vsync_event);
}
Layer& Display::GetLayer(std::size_t index) {
return *layers.at(index);
}
const Layer& Display::GetLayer(std::size_t index) const {
return *layers.at(index);
}
Kernel::KReadableEvent& Display::GetVSyncEvent() {
return vsync_event->GetReadableEvent();
}
void Display::SignalVSyncEvent() {
vsync_event->GetWritableEvent().Signal();
}
void Display::CreateLayer(u64 layer_id, u32 binder_id) {
ASSERT_MSG(layers.empty(), "Only one layer is supported per display at the moment");
auto [core, producer, consumer] = CreateBufferQueue(service_context);
auto buffer_item_consumer = std::make_shared<android::BufferItemConsumer>(std::move(consumer));
buffer_item_consumer->Connect(false);
layers.emplace_back(std::make_unique<Layer>(layer_id, binder_id, *core, *producer,
std::move(buffer_item_consumer)));
hos_binder_driver_server.RegisterProducer(std::move(producer));
}
void Display::CloseLayer(u64 layer_id) {
std::erase_if(layers,
[layer_id](const auto& layer) { return layer->GetLayerId() == layer_id; });
}
Layer* Display::FindLayer(u64 layer_id) {
const auto itr =
std::find_if(layers.begin(), layers.end(), [layer_id](const std::unique_ptr<Layer>& layer) {
return layer->GetLayerId() == layer_id;
});
if (itr == layers.end()) {
return nullptr;
}
return itr->get();
}
const Layer* Display::FindLayer(u64 layer_id) const {
const auto itr =
std::find_if(layers.begin(), layers.end(), [layer_id](const std::unique_ptr<Layer>& layer) {
return layer->GetLayerId() == layer_id;
});
if (itr == layers.end()) {
return nullptr;
}
return itr->get();
}
} // namespace Service::VI
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