palSystemEvent.h

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/**
***********************************************************************************************************************
* @file  palSystemEvent.h
* @brief Defines PAL system event functionality.
***********************************************************************************************************************
*/

#pragma once

//Include AutoGenerated header with definitions of SystemEventID and Reasons
//These are needed by the client to be able to call an event
//Currently only works with DX build will have else for other builds eventually

#include "palUtil.h"
#include "palDbgPrint.h"
#include "palAssert.h"
#include <stdarg.h>

namespace Util
{
/// Specifies the event log mode: disabled, print to debugger, or emit OS event
enum class SystemEventMode : uint32
{
    Disable,  ///< System event is ignored.
    Print,    ///< System event is routed to the debug window or stdout.
    OsEvent   ///< System event is routed to OS event output.
};

/// The SystemEventClientId is the 8 bit value used for clientId in SystemEventId below.
/// This is used to identify which event group/pool the event is from.
/// PAL and PAL clients will have different IDs.
/// For example, clientId = SystemEventClientId::Pal and eventId = 1 may be a
/// completely different event (name and payload)
/// than clientId = SystemEventClientId::Vulkan and eventId = 1.
enum class SystemEventClientId : uint8
{
    Pal = 0,
    Reserved,
    Llpc,
    Vulkan,
    Dxcp,
    Dx9p,
    Dxxp,
    Ocl,
    Reserved2,
    Count,
};

/// Sets the System event log mode (output to debugger, emit OS event, or disabled).
///
/// Probably controlled by a setting and set during initialization.
///
/// @param [in] clientId  Client ID to apply the output mode to. From SystemEventClientId enum.
/// @param [in] mode      New mode to be used for this event (print to file, etc.).
extern void SetSystemEventOutputMode(
    SystemEventClientId  clientId,
    SystemEventMode      mode);

/// The SystemEventId is used to specify which client ID and event ID to be emitted when logging an event.
/// For example, clientId = SystemEventClientId::Pal and eventId = 1 may be a completely different event (name
/// and payload) than clientId = SystemEventClientId::Vulkan and eventId = 1.
union SystemEventId
{
    struct
    {
        SystemEventClientId clientId : 8;   ///< Client ID
        uint32              eventId : 24;  ///< Event ID that is client ID relative.
    };
    uint32 u32All;  ///< packed 32-bits containing clientId and eventId.
};

/// Log system Event function to be used when the caller want to control
/// if the output is routed to debug print or OS event.
/// Clients should use the PAL_LOG_EVENT macro instead of calling this
/// function directly.
/// This function has one OS independent implementation.
/// This function basically checks the output mode and either drops the event,
/// prints the event via Util::DbgPrintf(),
/// or calls EmitOsSystemEvent() to emit the event in an OS specific form.
/// When printing, it will get the DPF format string,
/// from a script generated table.
///
///
/// @param [in] clientID is used to specify which client to be emitted when logging an event.
/// @param [in] eventId is used to specify which event to be emitted when logging an event.
/// @param [in] ap is the list of payload params logged to the event.
extern void LogSystemEventVaList(
    SystemEventClientId clientId,
    uint32              eventId,
    va_list             ap);

/// Log system Event function with variable arg list. This function will expand the variable
/// args into a va_list and call into LogSystemEventVaList function. LogSystemEventVaList is
/// auto generated
///
///
/// @param [in] clientID is used to specify which client to be emitted when logging an event.
/// @param [in] eventId is used to specify which event to be emitted when logging an event.
extern void LogSystemEvent(
    SystemEventClientId clientId,
    uint32              eventId,
    ...);

} // Util

  /// System event macro.
#define PAL_LOG_EVENT(...)     ((void)0)