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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/service/kernel_helpers.h"
#include "core/hle/service/nvdrv/core/container.h"
#include "core/hle/service/nvnflinger/buffer_item_consumer.h"
#include "core/hle/service/nvnflinger/buffer_queue_consumer.h"
#include "core/hle/service/nvnflinger/buffer_queue_core.h"
#include "core/hle/service/nvnflinger/buffer_queue_producer.h"
#include "core/hle/service/nvnflinger/hardware_composer.h"
#include "core/hle/service/nvnflinger/hos_binder_driver_server.h"
#include "core/hle/service/vi/display/vi_display.h"
#include "core/hle/service/vi/layer/vi_layer.h"
#include "core/hle/service/vi/vi_results.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,
Service::Nvidia::NvCore::NvMap& nvmap) {
auto buffer_queue_core = std::make_shared<android::BufferQueueCore>();
return {
buffer_queue_core,
std::make_unique<android::BufferQueueProducer>(service_context, buffer_queue_core, nvmap),
std::make_unique<android::BufferQueueConsumer>(buffer_queue_core)};
}
Display::Display(u64 id, std::string name_,
Nvnflinger::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_} {
hardware_composer = std::make_unique<Nvnflinger::HardwareComposer>();
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) {
size_t i = 0;
for (auto& layer : layers) {
if (!layer->IsOpen() || !layer->IsVisible()) {
continue;
}
if (i == index) {
return *layer;
}
i++;
}
UNREACHABLE();
}
size_t Display::GetNumLayers() const {
return std::ranges::count_if(layers, [](auto& l) { return l->IsOpen() && l->IsVisible(); });
}
Kernel::KReadableEvent* Display::GetVSyncEvent() {
return &vsync_event->GetReadableEvent();
}
void Display::SignalVSyncEvent() {
vsync_event->Signal();
}
void Display::CreateLayer(u64 layer_id, u32 binder_id,
Service::Nvidia::NvCore::Container& nv_core) {
auto [core, producer, consumer] = CreateBufferQueue(service_context, nv_core.GetNvMapFile());
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)));
if (is_abandoned) {
this->FindLayer(layer_id)->GetConsumer().Abandon();
}
hos_binder_driver_server.RegisterProducer(std::move(producer));
}
void Display::DestroyLayer(u64 layer_id) {
if (auto* layer = this->FindLayer(layer_id); layer != nullptr) {
layer->GetConsumer().Abandon();
}
std::erase_if(layers,
[layer_id](const auto& layer) { return layer->GetLayerId() == layer_id; });
}
void Display::Abandon() {
for (auto& layer : layers) {
layer->GetConsumer().Abandon();
}
is_abandoned = true;
}
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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