tracy_wrapper.h

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// Luanti
// SPDX-License-Identifier: LGPL-2.1-or-later
// Copyright (C) 2024 DS
 
/*
 * Wrapper for <tracy/Tracy.hpp>, so that we can use Tracy's macros without
 * having it as mandatory dependency.
 *
 * For annotations that you don't intend to upstream, you can also include
 * <tracy/Tracy.hpp> directly (which also works in irr/).
 */
 
#pragma once
 
#include "config.h"
#include "util/basic_macros.h"
 
#if BUILD_WITH_TRACY
 
#include <tracy/Tracy.hpp> // IWYU pragma: export
 
#else
 
// Copied from Tracy.hpp
 
#define TracyNoop
 
#define ZoneNamed(x,y)
#define ZoneNamedN(x,y,z)
#define ZoneNamedC(x,y,z)
#define ZoneNamedNC(x,y,z,w)
 
#define ZoneTransient(x,y)
#define ZoneTransientN(x,y,z)
 
#define ZoneScoped
#define ZoneScopedN(x)
#define ZoneScopedC(x)
#define ZoneScopedNC(x,y)
 
#define ZoneText(x,y)
#define ZoneTextV(x,y,z)
#define ZoneTextF(x,...)
#define ZoneTextVF(x,y,...)
#define ZoneName(x,y)
#define ZoneNameV(x,y,z)
#define ZoneNameF(x,...)
#define ZoneNameVF(x,y,...)
#define ZoneColor(x)
#define ZoneColorV(x,y)
#define ZoneValue(x)
#define ZoneValueV(x,y)
#define ZoneIsActive false
#define ZoneIsActiveV(x) false
 
#define FrameMark
#define FrameMarkNamed(x)
#define FrameMarkStart(x)
#define FrameMarkEnd(x)
 
#define FrameImage(x,y,z,w,a)
 
#define TracyLockable( type, varname ) type varname
#define TracyLockableN( type, varname, desc ) type varname
#define TracySharedLockable( type, varname ) type varname
#define TracySharedLockableN( type, varname, desc ) type varname
#define LockableBase( type ) type
#define SharedLockableBase( type ) type
#define LockMark(x) (void)x
#define LockableName(x,y,z)
 
#define TracyPlot(x,y)
#define TracyPlotConfig(x,y,z,w,a)
 
#define TracyMessage(x,y)
#define TracyMessageL(x)
#define TracyMessageC(x,y,z)
#define TracyMessageLC(x,y)
#define TracyAppInfo(x,y)
 
#define TracyAlloc(x,y)
#define TracyFree(x)
#define TracySecureAlloc(x,y)
#define TracySecureFree(x)
 
#define TracyAllocN(x,y,z)
#define TracyFreeN(x,y)
#define TracySecureAllocN(x,y,z)
#define TracySecureFreeN(x,y)
 
#define ZoneNamedS(x,y,z)
#define ZoneNamedNS(x,y,z,w)
#define ZoneNamedCS(x,y,z,w)
#define ZoneNamedNCS(x,y,z,w,a)
 
#define ZoneTransientS(x,y,z)
#define ZoneTransientNS(x,y,z,w)
 
#define ZoneScopedS(x)
#define ZoneScopedNS(x,y)
#define ZoneScopedCS(x,y)
#define ZoneScopedNCS(x,y,z)
 
#define TracyAllocS(x,y,z)
#define TracyFreeS(x,y)
#define TracySecureAllocS(x,y,z)
#define TracySecureFreeS(x,y)
 
#define TracyAllocNS(x,y,z,w)
#define TracyFreeNS(x,y,z)
#define TracySecureAllocNS(x,y,z,w)
#define TracySecureFreeNS(x,y,z)
 
#define TracyMessageS(x,y,z)
#define TracyMessageLS(x,y)
#define TracyMessageCS(x,y,z,w)
#define TracyMessageLCS(x,y,z)
 
#define TracySourceCallbackRegister(x,y)
#define TracyParameterRegister(x,y)
#define TracyParameterSetup(x,y,z,w)
#define TracyIsConnected false
#define TracyIsStarted false
#define TracySetProgramName(x)
 
#define TracyFiberEnter(x)
#define TracyFiberEnterHint(x,y)
#define TracyFiberLeave
 
#endif
 
 
// Helper for making sure frames end in all possible control flow path
class FrameMarker
{
        const char *m_name;
        bool m_started = false;
 
public:
        FrameMarker(const char *name) : m_name(name) {}
 
        ~FrameMarker() { end(); }
 
        DISABLE_CLASS_COPY(FrameMarker)
 
        FrameMarker(FrameMarker &&other) noexcept :
                m_name(other.m_name), m_started(other.m_started)
        {
                other.m_started = false;
        }
 
        FrameMarker &operator=(FrameMarker &&other) noexcept
        {
                if (&other != this) {
                        end();
                        m_name = other.m_name;
                        m_started = other.m_started;
                        other.m_started = false;
                }
                return *this;
        }
 
        FrameMarker &&started() &&
        {
                if (!m_started) {
                        FrameMarkStart(m_name);
                        m_started = true;
                }
                return std::move(*this);
        }
 
        void start()
        {
                // no move happens, because we drop the reference
                (void)std::move(*this).started();
        }
 
        void end()
        {
                if (m_started) {
                        m_started = false;
                        FrameMarkEnd(m_name);
                }
        }
};