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BizHawk/BizHawk.Emulation/Consoles/Nintendo/N64/mupen64plusApi.cs

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading;
namespace BizHawk.Emulation.Consoles.Nintendo.N64
{
public class mupen64plusApi : IDisposable
{
private readonly N64 bizhawkCore;
static mupen64plusApi AttachedCore = null;
bool disposed = false;
uint m64pSamplingRate;
short[] m64pAudioBuffer = new short[2];
Thread m64pEmulator;
AutoResetEvent m64pFrameComplete = new AutoResetEvent(false);
ManualResetEvent m64pStartupComplete = new ManualResetEvent(false);
[DllImport("kernel32.dll")]
public static extern IntPtr LoadLibrary(string dllToLoad);
[DllImport("kernel32.dll")]
public static extern IntPtr GetProcAddress(IntPtr hModule, string procedureName);
[DllImport("kernel32.dll")]
public static extern bool FreeLibrary(IntPtr hModule);
enum m64p_error
{
M64ERR_SUCCESS = 0,
M64ERR_NOT_INIT, /* Function is disallowed before InitMupen64Plus() is called */
M64ERR_ALREADY_INIT, /* InitMupen64Plus() was called twice */
M64ERR_INCOMPATIBLE, /* API versions between components are incompatible */
M64ERR_INPUT_ASSERT, /* Invalid parameters for function call, such as ParamValue=NULL for GetCoreParameter() */
M64ERR_INPUT_INVALID, /* Invalid input data, such as ParamValue="maybe" for SetCoreParameter() to set a BOOL-type value */
M64ERR_INPUT_NOT_FOUND, /* The input parameter(s) specified a particular item which was not found */
M64ERR_NO_MEMORY, /* Memory allocation failed */
M64ERR_FILES, /* Error opening, creating, reading, or writing to a file */
M64ERR_INTERNAL, /* Internal error (bug) */
M64ERR_INVALID_STATE, /* Current program state does not allow operation */
M64ERR_PLUGIN_FAIL, /* A plugin function returned a fatal error */
M64ERR_SYSTEM_FAIL, /* A system function call, such as an SDL or file operation, failed */
M64ERR_UNSUPPORTED, /* Function call is not supported (ie, core not built with debugger) */
M64ERR_WRONG_TYPE /* A given input type parameter cannot be used for desired operation */
};
enum m64p_plugin_type
{
M64PLUGIN_NULL = 0,
M64PLUGIN_RSP = 1,
M64PLUGIN_GFX,
M64PLUGIN_AUDIO,
M64PLUGIN_INPUT,
M64PLUGIN_CORE
};
enum m64p_command
{
M64CMD_NOP = 0,
M64CMD_ROM_OPEN,
M64CMD_ROM_CLOSE,
M64CMD_ROM_GET_HEADER,
M64CMD_ROM_GET_SETTINGS,
M64CMD_EXECUTE,
M64CMD_STOP,
M64CMD_PAUSE,
M64CMD_RESUME,
M64CMD_CORE_STATE_QUERY,
M64CMD_STATE_LOAD,
M64CMD_STATE_SAVE,
M64CMD_STATE_SET_SLOT,
M64CMD_SEND_SDL_KEYDOWN,
M64CMD_SEND_SDL_KEYUP,
M64CMD_SET_FRAME_CALLBACK,
M64CMD_TAKE_NEXT_SCREENSHOT,
M64CMD_CORE_STATE_SET,
M64CMD_READ_SCREEN,
M64CMD_RESET,
M64CMD_ADVANCE_FRAME,
M64CMD_SET_VI_CALLBACK
};
enum m64p_emu_state
{
M64EMU_STOPPED = 1,
M64EMU_RUNNING,
M64EMU_PAUSED
};
enum m64p_type
{
M64TYPE_INT = 1,
M64TYPE_FLOAT,
M64TYPE_BOOL,
M64TYPE_STRING
};
public enum N64_MEMORY : uint
{
RDRAM = 1,
PI_REG,
SI_REG,
VI_REG,
RI_REG,
AI_REG,
EEPROM = 100,
MEMPAK1,
MEMPAK2,
MEMPAK3,
MEMPAK4
}
// Core Specifc functions
/// <summary>
/// Initializes the the core DLL
/// </summary>
/// <param name="APIVersion">Specifies what API version our app is using. Just set this to 0x20001</param>
/// <param name="ConfigPath">Directory to have the DLL look for config data. "" seems to disable this</param>
/// <param name="DataPath">Directory to have the DLL look for user data. "" seems to disable this</param>
/// <param name="Context">Use "Core"</param>
/// <param name="DebugCallback">A function to use when the core wants to output debug messages</param>
/// <param name="context2">Use ""</param>
/// <param name="dummy">Use IntPtr.Zero</param>
/// <returns></returns>
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
delegate m64p_error CoreStartup(int APIVersion, string ConfigPath, string DataPath, string Context, DebugCallback DebugCallback, string context2, IntPtr dummy);
CoreStartup m64pCoreStartup;
/// <summary>
/// Cleans up the core
/// </summary>
/// <returns></returns>
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
delegate m64p_error CoreShutdown();
CoreShutdown m64pCoreShutdown;
/// <summary>
/// Connects a plugin DLL to the core DLL
/// </summary>
/// <param name="PluginType">The type of plugin that is being connected</param>
/// <param name="PluginLibHandle">The DLL handle for the plugin</param>
/// <returns></returns>
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
delegate m64p_error CoreAttachPlugin(m64p_plugin_type PluginType, IntPtr PluginLibHandle);
CoreAttachPlugin m64pCoreAttachPlugin;
/// <summary>
/// Disconnects a plugin DLL from the core DLL
/// </summary>
/// <param name="PluginType">The type of plugin to be disconnected</param>
/// <returns></returns>
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
delegate m64p_error CoreDetachPlugin(m64p_plugin_type PluginType);
CoreDetachPlugin m64pCoreDetachPlugin;
/// <summary>
/// Opens a section in the global config system
/// </summary>
/// <param name="SectionName">The name of the section to open</param>
/// <param name="ConfigSectionHandle">A pointer to the pointer to use as the section handle</param>
/// <returns></returns>
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
delegate m64p_error ConfigOpenSection(string SectionName, ref IntPtr ConfigSectionHandle);
ConfigOpenSection m64pConfigOpenSection;
/// <summary>
/// Sets a parameter in the global config system
/// </summary>
/// <param name="ConfigSectionHandle">The handle of the section to access</param>
/// <param name="ParamName">The name of the parameter to set</param>
/// <param name="ParamType">The type of the parameter</param>
/// <param name="ParamValue">A pointer to the value to use for the parameter (must be an int right now)</param>
/// <returns></returns>
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
delegate m64p_error ConfigSetParameter(IntPtr ConfigSectionHandle, string ParamName, m64p_type ParamType, ref int ParamValue);
ConfigSetParameter m64pConfigSetParameter;
/// <summary>
/// Saves the mupen64plus state to the provided buffer
/// </summary>
/// <param name="buffer">A byte array to use to save the state. Must be at least 16788288 + 1024 bytes</param>
/// <returns></returns>
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
delegate int savestates_save_bkm(byte[] buffer);
savestates_save_bkm m64pCoreSaveState;
/// <summary>
/// Loads the mupen64plus state from the provided buffer
/// </summary>
/// <param name="buffer">A byte array filled with the state to load. Must be at least 16788288 + 1024 bytes</param>
/// <returns></returns>
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
delegate int savestates_load_bkm(byte[] buffer);
savestates_load_bkm m64pCoreLoadState;
/// <summary>
/// Gets a pointer to a section of the mupen64plus core
/// </summary>
/// <param name="mem_ptr_type">The section to get a pointer for</param>
/// <returns>A pointer to the section requested</returns>
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
delegate IntPtr DebugMemGetPointer(N64_MEMORY mem_ptr_type);
DebugMemGetPointer m64pDebugMemGetPointer;
/// <summary>
/// Gets the size of the given memory area
/// </summary>
/// <param name="mem_ptr_type">The section to get the size of</param>
/// <returns>The size of the section requested</returns>
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
delegate int MemGetSize(N64_MEMORY mem_ptr_type);
MemGetSize m64pMemGetSize;
/// <summary>
/// Initializes the saveram (eeprom and 4 mempacks)
/// </summary>
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
delegate IntPtr init_saveram();
init_saveram m64pinit_saveram;
/// <summary>
/// Pulls out the saveram for bizhawk to save
/// </summary>
/// <param name="dest">A byte array to save the saveram into</param>
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
delegate IntPtr save_saveram(byte[] dest);
save_saveram m64psave_saveram;
/// <summary>
/// Restores the saveram from bizhawk
/// </summary>
/// <param name="src">A byte array containing the saveram to restore</param>
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
delegate IntPtr load_saveram(byte[] src);
load_saveram m64pload_saveram;
// The last parameter of CoreDoCommand is actually a void pointer, so instead we'll make a few delegates for the versions we want to use
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
delegate m64p_error CoreDoCommandByteArray(m64p_command Command, int ParamInt, byte[] ParamPtr);
CoreDoCommandByteArray m64pCoreDoCommandByteArray;
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
delegate m64p_error CoreDoCommandPtr(m64p_command Command, int ParamInt, IntPtr ParamPtr);
CoreDoCommandPtr m64pCoreDoCommandPtr;
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
delegate m64p_error CoreDoCommandRefInt(m64p_command Command, int ParamInt, ref int ParamPtr);
CoreDoCommandRefInt m64pCoreDoCommandRefInt;
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
delegate m64p_error CoreDoCommandFrameCallback(m64p_command Command, int ParamInt, FrameCallback ParamPtr);
CoreDoCommandFrameCallback m64pCoreDoCommandFrameCallback;
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
delegate m64p_error CoreDoCommandVICallback(m64p_command Command, int ParamInt, VICallback ParamPtr);
CoreDoCommandVICallback m64pCoreDoCommandVICallback;
// Graphics plugin specific
/// <summary>
/// Fills a provided buffer with the mupen64plus framebuffer
/// </summary>
/// <param name="framebuffer">The buffer to fill</param>
/// <param name="width">A pointer to a variable to fill with the width of the framebuffer</param>
/// <param name="height">A pointer to a variable to fill with the height of the framebuffer</param>
/// <param name="buffer">Which buffer to read: 0 = front, 1 = back</param>
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
private delegate void ReadScreen2(int[] framebuffer, ref int width, ref int height, int buffer);
ReadScreen2 GFXReadScreen2;
/// <summary>
/// Gets the width and height of the mupen64plus framebuffer
/// </summary>
/// <param name="dummy">Use IntPtr.Zero</param>
/// <param name="width">A pointer to a variable to fill with the width of the framebuffer</param>
/// <param name="height">A pointer to a variable to fill with the height of the framebuffer</param>
/// <param name="buffer">Which buffer to read: 0 = front, 1 = back</param>
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
private delegate void ReadScreen2Res(IntPtr dummy, ref int width, ref int height, int buffer);
ReadScreen2Res GFXReadScreen2Res;
// Audio plugin specific
/// <summary>
/// Gets the size of the mupen64plus audio buffer
/// </summary>
/// <returns>The size of the mupen64plus audio buffer</returns>
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
private delegate int GetBufferSize();
GetBufferSize AudGetBufferSize;
/// <summary>
/// Gets the audio buffer from mupen64plus, and then clears it
/// </summary>
/// <param name="dest">The buffer to fill with samples</param>
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
private delegate void ReadAudioBuffer(short[] dest);
ReadAudioBuffer AudReadAudioBuffer;
/// <summary>
/// Gets the current audio rate from mupen64plus
/// </summary>
/// <returns>The current audio rate</returns>
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
private delegate int GetAudioRate();
GetAudioRate AudGetAudioRate;
// Input plugin specific
/// <summary>
/// Sets the buttons for a controller
/// </summary>
/// <param name="num">The controller number to set buttons for (0-3)</param>
/// <param name="keys">The button data</param>
/// <param name="X">The value for the X axis</param>
/// <param name="Y">The value for the Y axis</param>
/// <returns></returns>
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
private delegate int SetKeys(int num, int keys, sbyte X, sbyte Y);
SetKeys InpSetKeys;
/// <summary>
/// Sets a callback to use when the mupen core wants controller buttons
/// </summary>
/// <param name="inputCallback">The delegate to use</param>
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
private delegate void SetInputCallback(InputCallback inputCallback);
SetInputCallback InpSetInputCallback;
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
public delegate void InputCallback();
InputCallback InpInputCallback;
// These are common for all four plugins
/// <summary>
/// Initializes the plugin
/// </summary>
/// <param name="CoreHandle">The DLL handle for the core DLL</param>
/// <param name="Context">Use "Video", "Audio", "Input", or "RSP" depending on the plugin</param>
/// <param name="DebugCallback">A function to use when the pluging wants to output debug messages</param>
/// <returns></returns>
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
private delegate m64p_error PluginStartup(IntPtr CoreHandle, string Context, DebugCallback DebugCallback);
/// <summary>
/// Cleans up the plugin
/// </summary>
/// <returns></returns>
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
private delegate m64p_error PluginShutdown();
PluginStartup GfxPluginStartup;
PluginStartup RspPluginStartup;
PluginStartup AudPluginStartup;
PluginStartup InpPluginStartup;
PluginShutdown GfxPluginShutdown;
PluginShutdown RspPluginShutdown;
PluginShutdown AudPluginShutdown;
PluginShutdown InpPluginShutdown;
// Callback functions
/// <summary>
/// Handles a debug message from mupen64plus
/// </summary>
/// <param name="Context"></param>
/// <param name="level"></param>
/// <param name="Message">The message to display</param>
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
public delegate void DebugCallback(IntPtr Context, int level, string Message);
/// <summary>
/// This will be called every time a new frame is finished
/// </summary>
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
public delegate void FrameCallback();
FrameCallback m64pFrameCallback;
/// <summary>
/// This will be called every time a VI occurs
/// </summary>
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
public delegate void VICallback();
VICallback m64pVICallback;
/// <summary>
/// This will be called after the emulator is setup and is ready to be used
/// </summary>
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
public delegate void StartupCallback();
// DLL handles
IntPtr CoreDll;
IntPtr GfxDll;
IntPtr RspDll;
IntPtr AudDll;
IntPtr InpDll;
public mupen64plusApi(N64 bizhawkCore, byte[] rom, VideoPluginSettings video_settings, int SaveType)
{
if (AttachedCore != null)
{
AttachedCore.Dispose();
AttachedCore = null;
}
this.bizhawkCore = bizhawkCore;
string VidDllName;
if (video_settings.PluginName == "Rice")
{
VidDllName = "mupen64plus-video-rice.dll";
}
else if (video_settings.PluginName == "Glide64")
{
VidDllName = "mupen64plus-video-glide64.dll";
}
else if (video_settings.PluginName == "Glide64mk2")
{
VidDllName = "mupen64plus-video-glide64mk2.dll";
}
else
{
throw new InvalidOperationException(string.Format("Unknown plugin \"" + video_settings.PluginName));
}
// Load each of the DLLs
CoreDll = LoadLibrary("mupen64plus.dll");
if (CoreDll == IntPtr.Zero)
throw new InvalidOperationException(string.Format("Failed to load mupen64plus.dll"));
GfxDll = LoadLibrary(VidDllName);
if (GfxDll == IntPtr.Zero)
throw new InvalidOperationException(string.Format("Failed to load " + VidDllName));
RspDll = LoadLibrary("mupen64plus-rsp-hle.dll");
if (RspDll == IntPtr.Zero)
throw new InvalidOperationException(string.Format("Failed to load mupen64plus-rsp-hle.dll"));
AudDll = LoadLibrary("mupen64plus-audio-bkm.dll");
if (AudDll == IntPtr.Zero)
throw new InvalidOperationException(string.Format("Failed to load mupen64plus-audio-bkm.dll"));
InpDll = LoadLibrary("mupen64plus-input-bkm.dll");
if (InpDll == IntPtr.Zero)
throw new InvalidOperationException(string.Format("Failed to load mupen64plus-input-bkm.dll"));
connectFunctionPointers();
// Start up the core
m64p_error result = m64pCoreStartup(0x20001, "", "", "Core", (IntPtr foo, int level, string Message) => { }, "", IntPtr.Zero);
// Set the savetype if needed
if (SaveType != 0)
{
IntPtr core_section = IntPtr.Zero;
m64pConfigOpenSection("Core", ref core_section);
m64pConfigSetParameter(core_section, "SaveType", m64p_type.M64TYPE_INT, ref SaveType);
}
// Pass the rom to the core
result = m64pCoreDoCommandByteArray(m64p_command.M64CMD_ROM_OPEN, rom.Length, rom);
// Resize the video to the size in bizhawk's settings
SetVideoSize(video_settings.Width, video_settings.Height);
// Open the general video settings section in the config system
IntPtr video_section = IntPtr.Zero;
m64pConfigOpenSection("Video-General", ref video_section);
// Set the desired width and height for mupen64plus
result = m64pConfigSetParameter(video_section, "ScreenWidth", m64p_type.M64TYPE_INT, ref video_settings.Width);
result = m64pConfigSetParameter(video_section, "ScreenHeight", m64p_type.M64TYPE_INT, ref video_settings.Height);
set_video_parameters(video_settings);
// Set up and connect the graphics plugin
result = GfxPluginStartup(CoreDll, "Video", (IntPtr foo, int level, string Message) => { });
result = m64pCoreAttachPlugin(m64p_plugin_type.M64PLUGIN_GFX, GfxDll);
// Set up our audio plugin
result = AudPluginStartup(CoreDll, "Audio", (IntPtr foo, int level, string Message) => { });
result = m64pCoreAttachPlugin(m64p_plugin_type.M64PLUGIN_AUDIO, AudDll);
// Set up our input plugin
result = AudPluginStartup(CoreDll, "Input", (IntPtr foo, int level, string Message) => { });
result = m64pCoreAttachPlugin(m64p_plugin_type.M64PLUGIN_INPUT, InpDll);
// Set up and connect the RSP plugin
result = RspPluginStartup(CoreDll, "RSP", (IntPtr foo, int level, string Message) => { });
result = m64pCoreAttachPlugin(m64p_plugin_type.M64PLUGIN_RSP, RspDll);
// Set up the frame callback function
m64pFrameCallback = new FrameCallback(Getm64pFrameBuffer);
result = m64pCoreDoCommandFrameCallback(m64p_command.M64CMD_SET_FRAME_CALLBACK, 0, m64pFrameCallback);
// Set up the VI callback function
m64pVICallback = new VICallback(VI);
result = m64pCoreDoCommandVICallback(m64p_command.M64CMD_SET_VI_CALLBACK, 0, m64pVICallback);
InitSaveram();
// Start the emulator in another thread
m64pEmulator = new Thread(ExecuteEmulator);
m64pEmulator.Start();
// Wait for the core to boot up
m64pStartupComplete.WaitOne();
// Set up the resampler
m64pSamplingRate = (uint)AudGetAudioRate();
bizhawkCore.resampler = new Sound.Utilities.SpeexResampler(6, m64pSamplingRate, 44100, m64pSamplingRate, 44100, null, null);
AttachedCore = this;
}
volatile bool emulator_running = false;
public void ExecuteEmulator()
{
emulator_running = true;
var cb = new StartupCallback(() => m64pStartupComplete.Set());
m64pCoreDoCommandPtr(m64p_command.M64CMD_EXECUTE, 0,
Marshal.GetFunctionPointerForDelegate(cb));
emulator_running = false;
cb.GetType();
}
/// <summary>
/// Look up function pointers in the dlls
/// </summary>
void connectFunctionPointers()
{
m64pCoreStartup = (CoreStartup)Marshal.GetDelegateForFunctionPointer(GetProcAddress(CoreDll, "CoreStartup"), typeof(CoreStartup));
m64pCoreShutdown = (CoreShutdown)Marshal.GetDelegateForFunctionPointer(GetProcAddress(CoreDll, "CoreShutdown"), typeof(CoreShutdown));
m64pCoreDoCommandByteArray = (CoreDoCommandByteArray)Marshal.GetDelegateForFunctionPointer(GetProcAddress(CoreDll, "CoreDoCommand"), typeof(CoreDoCommandByteArray));
m64pCoreDoCommandPtr = (CoreDoCommandPtr)Marshal.GetDelegateForFunctionPointer(GetProcAddress(CoreDll, "CoreDoCommand"), typeof(CoreDoCommandPtr));
m64pCoreDoCommandRefInt = (CoreDoCommandRefInt)Marshal.GetDelegateForFunctionPointer(GetProcAddress(CoreDll, "CoreDoCommand"), typeof(CoreDoCommandRefInt));
m64pCoreDoCommandFrameCallback = (CoreDoCommandFrameCallback)Marshal.GetDelegateForFunctionPointer(GetProcAddress(CoreDll, "CoreDoCommand"), typeof(CoreDoCommandFrameCallback));
m64pCoreDoCommandVICallback = (CoreDoCommandVICallback)Marshal.GetDelegateForFunctionPointer(GetProcAddress(CoreDll, "CoreDoCommand"), typeof(CoreDoCommandVICallback));
m64pCoreAttachPlugin = (CoreAttachPlugin)Marshal.GetDelegateForFunctionPointer(GetProcAddress(CoreDll, "CoreAttachPlugin"), typeof(CoreAttachPlugin));
m64pCoreDetachPlugin = (CoreDetachPlugin)Marshal.GetDelegateForFunctionPointer(GetProcAddress(CoreDll, "CoreDetachPlugin"), typeof(CoreDetachPlugin));
m64pConfigOpenSection = (ConfigOpenSection)Marshal.GetDelegateForFunctionPointer(GetProcAddress(CoreDll, "ConfigOpenSection"), typeof(ConfigOpenSection));
m64pConfigSetParameter = (ConfigSetParameter)Marshal.GetDelegateForFunctionPointer(GetProcAddress(CoreDll, "ConfigSetParameter"), typeof(ConfigSetParameter));
m64pCoreSaveState = (savestates_save_bkm)Marshal.GetDelegateForFunctionPointer(GetProcAddress(CoreDll, "savestates_save_bkm"), typeof(savestates_save_bkm));
m64pCoreLoadState = (savestates_load_bkm)Marshal.GetDelegateForFunctionPointer(GetProcAddress(CoreDll, "savestates_load_bkm"), typeof(savestates_load_bkm));
m64pDebugMemGetPointer = (DebugMemGetPointer)Marshal.GetDelegateForFunctionPointer(GetProcAddress(CoreDll, "DebugMemGetPointer"), typeof(DebugMemGetPointer));
m64pMemGetSize = (MemGetSize)Marshal.GetDelegateForFunctionPointer(GetProcAddress(CoreDll, "MemGetSize"), typeof(MemGetSize));
m64pinit_saveram = (init_saveram)Marshal.GetDelegateForFunctionPointer(GetProcAddress(CoreDll, "init_saveram"), typeof(init_saveram));
m64psave_saveram = (save_saveram)Marshal.GetDelegateForFunctionPointer(GetProcAddress(CoreDll, "save_saveram"), typeof(save_saveram));
m64pload_saveram = (load_saveram)Marshal.GetDelegateForFunctionPointer(GetProcAddress(CoreDll, "load_saveram"), typeof(load_saveram));
GfxPluginStartup = (PluginStartup)Marshal.GetDelegateForFunctionPointer(GetProcAddress(GfxDll, "PluginStartup"), typeof(PluginStartup));
GfxPluginShutdown = (PluginShutdown)Marshal.GetDelegateForFunctionPointer(GetProcAddress(GfxDll, "PluginShutdown"), typeof(PluginShutdown));
GFXReadScreen2 = (ReadScreen2)Marshal.GetDelegateForFunctionPointer(GetProcAddress(GfxDll, "ReadScreen2"), typeof(ReadScreen2));
GFXReadScreen2Res = (ReadScreen2Res)Marshal.GetDelegateForFunctionPointer(GetProcAddress(GfxDll, "ReadScreen2"), typeof(ReadScreen2Res));
AudPluginStartup = (PluginStartup)Marshal.GetDelegateForFunctionPointer(GetProcAddress(AudDll, "PluginStartup"), typeof(PluginStartup));
AudPluginShutdown = (PluginShutdown)Marshal.GetDelegateForFunctionPointer(GetProcAddress(AudDll, "PluginShutdown"), typeof(PluginShutdown));
AudGetBufferSize = (GetBufferSize)Marshal.GetDelegateForFunctionPointer(GetProcAddress(AudDll, "GetBufferSize"), typeof(GetBufferSize));
AudReadAudioBuffer = (ReadAudioBuffer)Marshal.GetDelegateForFunctionPointer(GetProcAddress(AudDll, "ReadAudioBuffer"), typeof(ReadAudioBuffer));
AudGetAudioRate = (GetAudioRate)Marshal.GetDelegateForFunctionPointer(GetProcAddress(AudDll, "GetAudioRate"), typeof(GetAudioRate));
InpPluginStartup = (PluginStartup)Marshal.GetDelegateForFunctionPointer(GetProcAddress(InpDll, "PluginStartup"), typeof(PluginStartup));
InpPluginShutdown = (PluginShutdown)Marshal.GetDelegateForFunctionPointer(GetProcAddress(InpDll, "PluginShutdown"), typeof(PluginShutdown));
InpSetKeys = (SetKeys)Marshal.GetDelegateForFunctionPointer(GetProcAddress(InpDll, "SetKeys"), typeof(SetKeys));
InpSetInputCallback = (SetInputCallback)Marshal.GetDelegateForFunctionPointer(GetProcAddress(InpDll, "SetInputCallback"), typeof(SetInputCallback));
RspPluginStartup = (PluginStartup)Marshal.GetDelegateForFunctionPointer(GetProcAddress(RspDll, "PluginStartup"), typeof(PluginStartup));
RspPluginShutdown = (PluginShutdown)Marshal.GetDelegateForFunctionPointer(GetProcAddress(RspDll, "PluginShutdown"), typeof(PluginShutdown));
}
public void SetVideoSize(int vidX, int vidY)
{
bizhawkCore.VirtualWidth = vidX;
bizhawkCore.BufferWidth = vidX;
bizhawkCore.BufferHeight = vidY;
bizhawkCore.frameBuffer = new int[vidX * vidY];
m64p_FrameBuffer = new int[vidX * vidY];
}
public void set_video_parameters(VideoPluginSettings video_settings)
{
IntPtr video_plugin_section = IntPtr.Zero;
if (video_settings.PluginName == "Rice")
{
m64pConfigOpenSection("Video-Rice", ref video_plugin_section);
}
else if (video_settings.PluginName == "Glide64")
{
m64pConfigOpenSection("Video-Glide64", ref video_plugin_section);
}
else if (video_settings.PluginName == "Glide64mk2")
{
m64pConfigOpenSection("Video-Glide64mk2", ref video_plugin_section);
}
else
{
return;
}
foreach (string Parameter in video_settings.Parameters.Keys)
{
int value = 0;
if (video_settings.Parameters[Parameter].GetType() == typeof(int))
{
value = (int)video_settings.Parameters[Parameter];
}
else if (video_settings.Parameters[Parameter].GetType() == typeof(bool))
{
value = (bool)video_settings.Parameters[Parameter] ? 1 : 0;
}
m64pConfigSetParameter(video_plugin_section, Parameter, m64p_type.M64TYPE_INT, ref value);
}
}
int[] m64p_FrameBuffer;
/// <summary>
/// This function will be used as the frame callback. It pulls the framebuffer from mupen64plus
/// </summary>
public void Getm64pFrameBuffer()
{
int width = 0;
int height = 0;
// Get the size of the frame buffer
GFXReadScreen2Res(IntPtr.Zero, ref width, ref height, 0);
// If it's not the same size as the current one, change the sizes
if (width != bizhawkCore.BufferWidth || height != bizhawkCore.BufferHeight)
{
SetVideoSize(width, height);
}
// Actually get the frame buffer
GFXReadScreen2(m64p_FrameBuffer, ref width, ref height, 0);
// vflip
int fromindex = bizhawkCore.BufferWidth * (bizhawkCore.BufferHeight - 1) * 4;
int toindex = 0;
for (int j = 0; j < bizhawkCore.BufferHeight; j++)
{
Buffer.BlockCopy(m64p_FrameBuffer, fromindex, bizhawkCore.frameBuffer, toindex, bizhawkCore.BufferWidth * 4);
fromindex -= bizhawkCore.BufferWidth * 4;
toindex += bizhawkCore.BufferWidth * 4;
}
}
/// <summary>
/// This function will be used as the VI callback. It checks the audio rate and updates the resampler if necessary.
/// It then polls the audio buffer for samples. It then marks the frame as complete.
/// </summary>
public void VI()
{
uint s = (uint)AudGetAudioRate();
if (s != m64pSamplingRate)
{
m64pSamplingRate = s;
bizhawkCore.resampler.ChangeRate(s, 44100, s, 44100);
//Console.WriteLine("N64 ARate Change {0}", s);
}
int m64pAudioBufferSize = AudGetBufferSize();
if (m64pAudioBuffer.Length < m64pAudioBufferSize)
m64pAudioBuffer = new short[m64pAudioBufferSize];
if (m64pAudioBufferSize > 0)
{
AudReadAudioBuffer(m64pAudioBuffer);
bizhawkCore.resampler.EnqueueSamples(m64pAudioBuffer, m64pAudioBufferSize / 2);
}
m64pFrameComplete.Set();
}
public int get_memory_size(N64_MEMORY id)
{
return m64pMemGetSize(id);
}
public IntPtr get_memory_ptr(N64_MEMORY id)
{
return m64pDebugMemGetPointer(id);
}
public void set_buttons(int num, int keys, sbyte X, sbyte Y)
{
InpSetKeys(num, keys, X, Y);
}
public void soft_reset()
{
m64pCoreDoCommandPtr(m64p_command.M64CMD_RESET, 0, IntPtr.Zero);
}
public void hard_reset()
{
m64pCoreDoCommandPtr(m64p_command.M64CMD_RESET, 1, IntPtr.Zero);
}
public void frame_advance()
{
m64pCoreDoCommandPtr(m64p_command.M64CMD_ADVANCE_FRAME, 0, IntPtr.Zero);
m64pFrameComplete.WaitOne();
}
public void SetM64PInputCallback(InputCallback inputCallback)
{
InpInputCallback = inputCallback;
InpSetInputCallback(InpInputCallback);
}
public int SaveState(byte[] buffer)
{
return m64pCoreSaveState(buffer);
}
public void LoadState(byte[] buffer)
{
// This is a dirty hack...
// When using the dynamic recompiler if a state is loaded too early some pointers are not set up yet, so mupen
// tries to access null pointers and the emulator crashes. It seems like it takes 2 frames to fully set up the recompiler,
// so if two frames haven't been run yet, run them, then load the state.
if (bizhawkCore.Frame < 2)
{
frame_advance();
frame_advance();
}
m64pCoreLoadState(buffer);
}
byte[] saveram_backup;
public void InitSaveram()
{
m64pinit_saveram();
}
public byte[] SaveSaveram()
{
if (disposed)
{
if (saveram_backup != null)
{
return saveram_backup;
}
else
{
// This shouldn't happen!!
return new byte[0x800 + 4 * 0x8000];
}
}
else
{
byte[] dest = new byte[0x800 + 4 * 0x8000];
m64psave_saveram(dest);
return dest;
}
}
public void LoadSaveram(byte[] src)
{
m64pload_saveram(src);
}
public void Dispose()
{
if (!disposed)
{
// Stop the core, and wait for it to end
while (emulator_running)
{
// Repeatedly send the stop command, because sometimes sending it just once doesn't work
m64pCoreDoCommandPtr(m64p_command.M64CMD_STOP, 0, IntPtr.Zero);
}
// Backup the saveram in case bizhawk wants to get at is after we've freed the libraries
saveram_backup = SaveSaveram();
bizhawkCore.resampler.Dispose();
bizhawkCore.resampler = null;
m64pCoreDetachPlugin(m64p_plugin_type.M64PLUGIN_GFX);
m64pCoreDetachPlugin(m64p_plugin_type.M64PLUGIN_AUDIO);
m64pCoreDetachPlugin(m64p_plugin_type.M64PLUGIN_INPUT);
m64pCoreDetachPlugin(m64p_plugin_type.M64PLUGIN_RSP);
GfxPluginShutdown();
FreeLibrary(GfxDll);
AudPluginShutdown();
FreeLibrary(AudDll);
InpPluginShutdown();
FreeLibrary(InpDll);
RspPluginShutdown();
FreeLibrary(RspDll);
m64pCoreDoCommandPtr(m64p_command.M64CMD_ROM_CLOSE, 0, IntPtr.Zero);
m64pCoreShutdown();
FreeLibrary(CoreDll);
disposed = true;
}
}
}
public class VideoPluginSettings
{
public string PluginName;
//public Dictionary<string, int> IntParameters = new Dictionary<string,int>();
//public Dictionary<string, string> StringParameters = new Dictionary<string,string>();
public Dictionary<string, object> Parameters = new Dictionary<string, object>();
public int Height;
public int Width;
public VideoPluginSettings (string Name, int Width, int Height)
{
this.PluginName = Name;
this.Width = Width;
this.Height = Height;
}
}
}
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