Files
KytyPS5/src/graphics/host_gpu/objects/label.cpp
T
2026-07-21 07:37:52 +02:00

349 lines
9.1 KiB
C++

#include "graphics/host_gpu/objects/label.h"
#include "common/assert.h"
#include "common/threads.h"
#include "graphics/host_gpu/graphicContext.h"
#include "graphics/host_gpu/renderer/render.h"
#include "graphics/host_gpu/renderer/renderContext.h"
#include "graphics/host_gpu/vulkanCommon.h"
#include <algorithm>
#include <memory>
#include <vector>
namespace Libs::Graphics {
enum LabelStatus {
New,
Active,
ActiveDeleted,
NotActive,
};
struct LabelCallbacks {
LabelCallback callback_1 = nullptr;
LabelCallback callback_2 = nullptr;
uint64_t args[LABEL_ARGS_MAX] = {};
};
struct LabelEvent final {
vk::Device device = nullptr;
vk::Event event = nullptr;
~LabelEvent() {
if (event != nullptr) {
device.destroyEvent(event, nullptr);
}
}
};
struct LabelSubmission {
std::shared_ptr<LabelEvent> completion;
LabelCallbacks callbacks;
};
struct Label {
vk::Device device = nullptr;
LabelStatus status = LabelStatus::New;
LabelCallbacks callbacks;
std::vector<LabelSubmission> submissions;
};
class LabelManager {
public:
LabelManager() {
EXIT_NOT_IMPLEMENTED(!Common::Thread::IsMainThread());
Common::Thread t(ThreadRun, this);
t.Detach();
}
~LabelManager() { KYTY_NOT_IMPLEMENTED; }
KYTY_CLASS_NO_COPY(LabelManager);
Label* Create(LabelCallback callback_1, LabelCallback callback_2, const uint64_t* args);
void Delete(Label& label);
void Set(CommandBuffer& buffer, Label& label);
void Drain();
private:
static void ThreadRun(void* data);
bool Remove(Label& label);
static void Destroy(Label& label);
Common::Mutex m_mutex;
Common::CondVar m_cond_var;
std::vector<Label*> m_labels;
uint64_t m_callbacks_in_flight = 0;
};
static LabelManager* g_label_manager = nullptr;
static thread_local bool g_in_label_callback = false;
class LabelCallbackScope final {
public:
LabelCallbackScope() {
if (g_in_label_callback) {
EXIT("recursive GPU label callback\n");
}
g_in_label_callback = true;
}
~LabelCallbackScope() {
if (!g_in_label_callback) {
EXIT("GPU label callback scope is not active\n");
}
g_in_label_callback = false;
}
};
void LabelManager::ThreadRun(void* data) {
auto* manager = static_cast<LabelManager*>(data);
for (;;) {
manager->m_mutex.Lock();
uint64_t active_count = 0;
std::vector<Label*> deleted_labels;
std::vector<LabelCallbacks> fired_labels;
std::vector<LabelSubmission> finished_submissions;
deleted_labels.reserve(manager->m_labels.size());
for (auto& label: manager->m_labels) {
for (auto it = label->submissions.begin(); it != label->submissions.end();) {
active_count++;
if (it->completion == nullptr || it->completion->device == nullptr ||
it->completion->event == nullptr) {
EXIT("GPU label submission has no completion event\n");
}
const auto status = it->completion->device.getEventStatus(it->completion->event);
switch (status) {
case vk::Result::eEventSet:
fired_labels.push_back(it->callbacks);
finished_submissions.push_back(*it);
it = label->submissions.erase(it);
break;
case vk::Result::eEventReset: ++it; break;
default: EXIT("vkGetEventStatus returned an unexpected result\n");
}
}
if (label->submissions.empty()) {
switch (label->status) {
case LabelStatus::ActiveDeleted: deleted_labels.push_back(label); break;
case LabelStatus::Active: label->status = LabelStatus::NotActive; break;
default: break;
}
}
}
if (active_count == 0) {
manager->m_cond_var.Wait(&manager->m_mutex);
}
if (fired_labels.size() > UINT64_MAX - manager->m_callbacks_in_flight) {
EXIT("GPU label callback count overflow\n");
}
manager->m_callbacks_in_flight += fired_labels.size();
for (auto& label: deleted_labels) {
bool removed = manager->Remove(*label);
EXIT_NOT_IMPLEMENTED(!removed);
}
manager->m_mutex.Unlock();
// Each completion event is shared with the recording command buffer's fence retainer.
// The event is destroyed only after both the label thread observed it and that command
// buffer completed, even when either side wins the race.
(void)finished_submissions;
for (auto& label: deleted_labels) {
Destroy(*label);
}
for (auto& label: fired_labels) {
LabelCallbackScope callback_scope;
if (label.callback_1 != nullptr) {
(void)label.callback_1(label.args);
}
if (label.callback_2 != nullptr) {
label.callback_2(label.args);
}
}
if (!fired_labels.empty()) {
Common::LockGuard lock(manager->m_mutex);
if (manager->m_callbacks_in_flight < fired_labels.size()) {
EXIT("GPU label callback count underflow\n");
}
manager->m_callbacks_in_flight -= fired_labels.size();
manager->m_cond_var.SignalAll();
}
Common::Thread::SleepMicro(100);
}
}
Label* LabelManager::Create(LabelCallback callback_1, LabelCallback callback_2,
const uint64_t* args) {
Common::LockGuard lock(m_mutex);
auto* label = new Label;
label->status = LabelStatus::New;
label->device = GetRenderContext().GetGraphics().device;
label->callbacks.callback_1 = callback_1;
label->callbacks.callback_2 = callback_2;
if (args != nullptr) {
for (int i = 0; i < LABEL_ARGS_MAX; i++) {
label->callbacks.args[i] = args[i];
}
}
m_labels.push_back(label);
return label;
}
bool LabelManager::Remove(Label& label) {
EXIT_IF(label.device == nullptr);
Common::LockGuard lock(m_mutex);
const auto it = std::find(m_labels.begin(), m_labels.end(), &label);
EXIT_NOT_IMPLEMENTED(it == m_labels.end());
EXIT_NOT_IMPLEMENTED(label.status != LabelStatus::NotActive &&
label.status != LabelStatus::Active &&
label.status != LabelStatus::ActiveDeleted);
if (!label.submissions.empty()) {
label.status = LabelStatus::ActiveDeleted;
return false;
}
m_labels.erase(it);
return true;
}
void LabelManager::Destroy(Label& label) {
EXIT_IF(label.device == nullptr);
EXIT_NOT_IMPLEMENTED(!label.submissions.empty());
delete &label;
}
void LabelManager::Delete(Label& label) {
if (Remove(label)) {
Destroy(label);
}
}
void LabelManager::Set(CommandBuffer& buffer, Label& label) {
EXIT_IF(buffer.IsInvalid());
EXIT_IF(label.device == nullptr);
Common::LockGuard lock(m_mutex);
const auto it = std::find(m_labels.begin(), m_labels.end(), &label);
EXIT_NOT_IMPLEMENTED(it == m_labels.end());
EXIT_NOT_IMPLEMENTED(label.status != LabelStatus::New &&
label.status != LabelStatus::NotActive &&
label.status != LabelStatus::Active);
label.status = LabelStatus::Active;
LabelSubmission submission {};
submission.callbacks = label.callbacks;
submission.completion = std::make_shared<LabelEvent>();
submission.completion->device = label.device;
auto vk_buffer = buffer.Handle();
EXIT_NOT_IMPLEMENTED(vk_buffer == nullptr);
vk::EventCreateInfo create_info {};
create_info.sType = vk::StructureType::eEventCreateInfo;
create_info.pNext = nullptr;
create_info.flags = {};
const auto create_result =
label.device.createEvent(&create_info, nullptr, &submission.completion->event);
if (create_result != vk::Result::eSuccess || submission.completion->event == nullptr) {
EXIT("failed to create label event: %s (%d)\n", VulkanToString(create_result).c_str(),
static_cast<int>(create_result));
}
buffer.RetainResourceUntilFence(submission.completion);
// Labels can be reused before an earlier end-of-pipe event has been
// observed by the polling thread. Capture a separate Vulkan event and
// callback snapshot for each set so older writes are not lost.
const auto reset_result = label.device.resetEvent(submission.completion->event);
if (reset_result != vk::Result::eSuccess) {
EXIT("failed to reset label event: %s (%d)\n", VulkanToString(reset_result).c_str(),
static_cast<int>(reset_result));
}
vk_buffer.setEvent(submission.completion->event, vk::PipelineStageFlagBits::eBottomOfPipe);
label.submissions.push_back(submission);
m_cond_var.SignalAll();
}
void LabelManager::Drain() {
m_mutex.Lock();
for (;;) {
const bool pending = std::any_of(m_labels.begin(), m_labels.end(), [](const Label* label) {
return !label->submissions.empty();
});
if (!pending && m_callbacks_in_flight == 0) {
m_mutex.Unlock();
return;
}
m_cond_var.SignalAll();
m_cond_var.Wait(&m_mutex);
}
}
void LabelInit() {
EXIT_IF(g_label_manager != nullptr);
g_label_manager = new LabelManager;
}
Label* LabelCreate(LabelCallback callback_1, LabelCallback callback_2, const uint64_t* args) {
EXIT_IF(g_label_manager == nullptr);
return g_label_manager->Create(callback_1, callback_2, args);
}
void LabelDelete(Label& label) {
EXIT_IF(g_label_manager == nullptr);
g_label_manager->Delete(label);
}
void LabelSet(CommandBuffer& buffer, Label& label) {
EXIT_IF(g_label_manager == nullptr);
g_label_manager->Set(buffer, label);
}
void LabelDrain() {
EXIT_IF(g_label_manager == nullptr);
g_label_manager->Drain();
}
bool LabelInCallback() noexcept {
return g_in_label_callback;
}
} // namespace Libs::Graphics