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// Copyright 2014 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <algorithm>
#include <functional>
#include <vector>
#include "common/logging/log.h"
#include "core/hle/service/gsp/gsp_command.h"
namespace VideoCore {
class GraphicsDebugger {
public:
// Base class for all objects which need to be notified about GPU events
class DebuggerObserver {
friend class GraphicsDebugger;
public:
DebuggerObserver() = default;
virtual ~DebuggerObserver() {
if (observed) {
observed->UnregisterObserver(this);
}
}
/**
* Called when a GX command has been processed and is ready for being
* read via GraphicsDebugger::ReadGXCommandHistory.
* @param total_command_count Total number of commands in the GX history
* @note All methods in this class are called from the GSP thread
*/
virtual void GXCommandProcessed(int total_command_count) {
[[maybe_unused]] const Service::GSP::Command& cmd =
observed->ReadGXCommandHistory(total_command_count - 1);
LOG_TRACE(Debug_GPU, "Received command: id={:x}", (int)cmd.id.Value());
}
protected:
const GraphicsDebugger* GetDebugger() const {
return observed;
}
private:
GraphicsDebugger* observed{};
};
void GXCommandProcessed(Service::GSP::Command& command_data) {
if (observers.empty()) {
return;
}
gx_command_history.emplace_back(command_data);
ForEachObserver([this](DebuggerObserver* observer) {
observer->GXCommandProcessed(static_cast<int>(this->gx_command_history.size()));
});
}
const Service::GSP::Command& ReadGXCommandHistory(int index) const {
// TODO: Is this thread-safe?
return gx_command_history[index];
}
void RegisterObserver(DebuggerObserver* observer) {
// TODO: Check for duplicates
observers.push_back(observer);
observer->observed = this;
}
void UnregisterObserver(DebuggerObserver* observer) {
observers.erase(std::remove(observers.begin(), observers.end(), observer), observers.end());
observer->observed = nullptr;
}
private:
void ForEachObserver(std::function<void(DebuggerObserver*)> func) {
std::for_each(observers.begin(), observers.end(), func);
}
std::vector<DebuggerObserver*> observers;
std::vector<Service::GSP::Command> gx_command_history;
};
} // namespace VideoCore
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