/*
* Glide64 - Glide video plugin for Nintendo 64 emulators.
* Copyright (c) 2002  Dave2001
* Copyright (c) 2003-2009  Sergey 'Gonetz' Lipski
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/

//****************************************************************
//
// Glide64 - Glide Plugin for Nintendo 64 emulators
// Project started on December 29th, 2001
//
// Authors:
// Dave2001, original author, founded the project in 2001, left it in 2002
// Gugaman, joined the project in 2002, left it in 2002
// Sergey 'Gonetz' Lipski, joined the project in 2002, main author since fall of 2002
// Hiroshi 'KoolSmoky' Morii, joined the project in 2007
//
//****************************************************************
//
// To modify Glide64:
// * Write your name and (optional)email, commented by your work, so I know who did it, and so that you can find which parts you modified when it comes time to send it to me.
// * Do NOT send me the whole project or file that you modified.  Take out your modified code sections, and tell me where to put them.  If people sent the whole thing, I would have many different versions, but no idea how to combine them all.
//
//****************************************************************

/**********************************************************************************
Common gfx plugin spec, version #1.3 maintained by zilmar (zilmar@emulation64.com)

All questions or suggestions should go through the mailing list.
http://www.egroups.com/group/Plugin64-Dev
***********************************************************************************

Notes:
------

Setting the approprate bits in the MI_INTR_REG and calling CheckInterrupts which
are both passed to the DLL in InitiateGFX will generate an Interrupt from with in
the plugin.

The Setting of the RSP flags and generating an SP interrupt  should not be done in
the plugin

**********************************************************************************/

// THIS FILE IS A PRECOMPILED HEADER TO DECREASE BUILD TIME.  INCLUDE ALL STANDARD
//  .H FILES HERE

#ifndef _GFX_H_INCLUDED__
#define _GFX_H_INCLUDED__

#include "winlnxdefs.h"
#include "m64p.h"

#include <stdio.h>
#include <SDL_mutex.h>
#include <fstream>
#include <stdlib.h>
#include <stddef.h>		// offsetof
#include <string.h>
#include <stdarg.h>
#include <glide.h>
#include "GlideExtensions.h"
#include "rdp.h"
#include "Keys.h"

#include <iostream>
#include <fstream>

#if defined __VISUALC__
#define GLIDE64_TRY __try
#define GLIDE64_CATCH __except (EXCEPTION_EXECUTE_HANDLER)
#else
#define GLIDE64_TRY try
#define GLIDE64_CATCH catch (...)
#endif

#ifndef _WIN32
typedef int HWND;
#endif


#if defined(__cplusplus)
extern "C" {
#endif

#define _ENDUSER_RELEASE_

//********
// Logging

// ********************************
// ** TAKE OUT BEFORE RELEASE!!! **
//#define LOGGING			// log of spec functions called
//#define LOG_KEY			// says "Key!!!" in the log when space bar is pressed

//#define LOG_UCODE

//#define ALTTAB_FIX

//#define EXTREME_LOGGING		// lots of logging
							//  note that some of these things are inserted/removed
							//  from within the code & may not be changed by this define.

//#define TLUT_LOGGING		// log every entry of the TLUT?
// ********************************

#define FPS					// fps counter able? (not enabled necessarily)

#define LOGNOTKEY			 // Log if not pressing:
#define LOGKEY		0x11 // this key (CONTROL)

//#define LOG_COMMANDS		// log the whole 64-bit command as (0x........, 0x........)

#define CATCH_EXCEPTIONS	// catch exceptions so it doesn't freeze and will report
							// "The gfx plugin has caused an exception" instead.

#define FLUSH				// flush the file buffer. slower logging, but makes sure
							//  the command is logged before continuing (in case of
							//  crash or exception, the log will not be cut short)
#ifndef _ENDUSER_RELEASE_
#define RDP_LOGGING			// Allow logging (will not log unless checked, but allows the option)
							//  Logging functions will not be compiled if this is not present.
//#define RDP_ERROR_LOG
#endif

#define FPS_FRAMES	10		// Number of frames in which to make an FPS count

//#define SHOW_FULL_TEXVIEWER	// shows the entire contents of the texture in the cache viewer,
								// usually used to debug clamping issues.


// Usually enabled
#define LARGE_TEXTURE_HANDLING	// allow large-textured objects to be split?

#ifdef ALTTAB_FIX
extern HHOOK hhkLowLevelKybd;
extern LRESULT CALLBACK LowLevelKeyboardProc(int nCode,
   WPARAM wParam, LPARAM lParam);
#endif

// Simulations
//#define SIMULATE_VOODOO1
//#define SIMULATE_BANSHEE
//********

#ifdef EXT_LOGGING
extern std::ofstream extlog;
#define EXT(x) extlog.open("ext.txt",std::ios::app); extlog << x; extlog.close();
#else
#define EXT(x)
#endif

#ifndef _ENDUSER_RELEASE_
#define UNIMP_LOG			// Keep enabled, option in dialog
#define BRIGHT_RED			// Keep enabled, option in dialog
#endif

#define COLORED_DEBUGGER	// ;) pretty colors

#ifdef FPS
extern LARGE_INTEGER fps_last;
extern LARGE_INTEGER fps_next;
extern float		  fps;
extern wxUint32	  fps_count;
#endif

// macros for accessing bytes and shorts in sequential order on both
// big-endian and little-endian machines. On little-endian computers,
// the 32-bit words in the emulated RAM and ROM are byte-swapped for
// fast word access. This forces us to read bytes in reverse order.
#if defined(M64P_BIG_ENDIAN)
    #define     BYTEADDR(x)  (x)
    #define     SHORTADDR(x) (x)
#else
    #define     BYTEADDR(x)  ((x)^3)
    #define     SHORTADDR(x) ((x)^1)
#endif

// rdram mask at 0x400000 bytes (bah, not right for majora's mask)
//#define BMASK	0x7FFFFF
extern unsigned long BMASK;
#define WMASK	0x3FFFFF
#define DMASK	0x1FFFFF

extern wxUint32 update_screen_count;
extern wxUint32 resolutions[0x18][2];

int CheckKeyPressed(int key, int mask);

//#define PERFORMANCE
#ifdef PERFORMANCE
extern int64 perf_cur;
extern int64 perf_next;
#endif

#define LOG(...) WriteLog(M64MSG_INFO, __VA_ARGS__)
#define VLOG(...) WriteLog(M64MSG_VERBOSE, __VA_ARGS__)
#define WARNLOG(...) WriteLog(M64MSG_WARNING, __VA_ARGS__)
#define ERRLOG(...) WriteLog(M64MSG_ERROR, __VA_ARGS__)


#ifdef RDP_LOGGING
extern int log_open;
extern std::ofstream rdp_log;
#define OPEN_RDP_LOG() EXT("OPEN_RDP_LOG ()\n"); if (settings.logging && !log_open) { rdp_log.open ("rdp.txt"); log_open=TRUE; }
#define CLOSE_RDP_LOG() EXT("CLOSE_RDP_LOG ()\n"); if (settings.logging && log_open) { rdp_log.close (); log_open=FALSE; }

#ifdef LOGNOTKEY
#define LRDP(x) EXT("RDP (...)\n"); if (settings.logging && log_open) { if (!CheckKeyPressed(LOGKEY,0x8000)) { rdp_log << x; rdp_log.flush(); } }
#else
#define LRDP(x) EXT("RDP (...)\n"); if (settings.logging && log_open) { rdp_log << x; rdp_log.flush(); }
#endif

#else
#define OPEN_RDP_LOG()
#define CLOSE_RDP_LOG()
#define LRDP(x)
#endif


#ifdef RDP_ERROR_LOG
extern int elog_open;
extern std::ofstream rdp_err;
#define OPEN_RDP_E_LOG() EXT("OPEN_RDP_E_LOG ()\n"); if (settings.elogging && !elog_open) { rdp_err.open ("rdp_e.txt"); elog_open=TRUE; }
#define CLOSE_RDP_E_LOG() EXT("CLOSE_RDP_LOG ()\n"); if (settings.elogging && elog_open) { rdp_err.close (); elog_open=FALSE; }
#define RDP_E(x) if (settings.elogging) { FRDP_E (x); }
#else
#define OPEN_RDP_E_LOG()
#define CLOSE_RDP_E_LOG()
#define RDP_E(x)
#endif

__inline void FRDP (const char *fmt, ...) ATTR_FMT(1,2);
__inline void FRDP_E (const char *fmt, ...) ATTR_FMT(1,2);

void FRDP (const char *fmt, ...)
{
#ifdef RDP_LOGGING
	if (!settings.logging || !log_open) return;

#ifdef LOGNOTKEY
	if (CheckKeyPressed(LOGKEY,0x8000)) return;
#endif

	va_list ap;
	va_start(ap, fmt);
	vsprintf(out_buf, fmt, ap);
	LRDP (out_buf);
	va_end(ap);
#endif
}

void FRDP_E (const char *fmt, ...)
{
#ifdef RDP_ERROR_LOG
	if (!settings.elogging || !elog_open) return;

#ifdef LOGNOTKEY
	if (CheckKeyPressed(LOGKEY,0x8000)) return;
#endif

	sprintf (out_buf, "%08lx: (%08lx, %08lx) ", rdp.pc[rdp.pc_i]-8, rdp.cmd0, rdp.cmd1);
	rdp_err << out_buf;

	va_list ap2;
	va_start(ap2, fmt);
	vsprintf(out_buf, fmt, ap2);
	rdp_err << out_buf;
	rdp_err.flush();
	va_end(ap2);
#endif
}

extern int fullscreen;
extern int romopen;
extern int to_fullscreen;
extern int debugging;

extern int evoodoo;
extern int ev_fullscreen;

extern SDL_sem *mutexProcessDList;
extern int exception;

// extern wxMutex *mutexProcessDList;

int InitGfx (int);
void ReleaseGfx ();

// The highest 8 bits are the segment # (1-16), and the lower 24 bits are the offset to
// add to it.
__inline wxUint32 segoffset (wxUint32 so)
{
	return (rdp.segment[(so>>24)&0x0f] + (so&BMASK))&BMASK;
}

/* Plugin types */
#define PLUGIN_TYPE_GFX				2

/***** Structures *****/
typedef struct {
	wxUint16 Version;        /* Set to 0x0103 */
	wxUint16 Type;           /* Set to PLUGIN_TYPE_GFX */
	char Name[100];      /* Name of the DLL */

	/* If DLL supports memory these memory options then set them to TRUE or FALSE
	   if it does not support it */
	int NormalMemory;    /* a normal wxUint8 array */
	int MemoryBswaped;  /* a normal wxUint8 array where the memory has been pre
	                          bswap on a dword (32 bits) boundry */
} PLUGIN_INFO;

/*
typedef struct {
// <removed, already defined in API>
} GFX_INFO;
*/
extern GFX_INFO gfx;
// extern wxWindow * GFXWindow;
extern bool no_dlist;

typedef GrContext_t (FX_CALL *GRWINOPENEXT)( FxU32                   hWnd,
                                             GrScreenResolution_t    resolution,
                                             GrScreenRefresh_t       refresh,
                                             GrColorFormat_t         format,
                                             GrOriginLocation_t      origin,
                                             GrPixelFormat_t         pixelformat,
                                             int                     nColBuffers,
                                             int                     nAuxBuffers) ;

typedef void (FX_CALL *GRTEXBUFFEREXT)( GrChipID_t  		tmu,
										FxU32 				startAddress,
										GrLOD_t 			lodmin,
										GrLOD_t 			lodmax,
										GrAspectRatio_t 	aspect,
										GrTextureFormat_t 	fmt,
										FxU32 				evenOdd) ;

typedef void (FX_CALL *GRAUXBUFFEREXT)( GrBuffer_t buffer ) ;

typedef void (FX_CALL *GRCOLORCOMBINEEXT) (GrCCUColor_t     a,
                                        GrCombineMode_t  a_mode,
                                        GrCCUColor_t     b,
                                        GrCombineMode_t  b_mode,
                                        GrCCUColor_t     c,
                                        FxBool           c_invert,
                                        GrCCUColor_t     d,
                                        FxBool           d_invert,
                                        FxU32            shift,
                                        FxBool           invert) ;

typedef void (FX_CALL *GRTEXCOLORCOMBINEEXT) (GrChipID_t       tmu,
                                           GrTCCUColor_t    a,
                                           GrCombineMode_t  a_mode,
                                           GrTCCUColor_t    b,
                                           GrCombineMode_t  b_mode,
                                           GrTCCUColor_t    c,
                                           FxBool           c_invert,
                                           GrTCCUColor_t    d,
                                           FxBool           d_invert,
                                           FxU32            shift,
                                           FxBool           invert);

typedef void (FX_CALL *GRCONSTANTCOLORVALUEEXT)
          (GrChipID_t       tmu,
           GrColor_t        value);

typedef void (FX_CALL *GRSTIPPLE)( FxI32 mode) ;

typedef void (FX_CALL *GRCONFIGWRAPPEREXT)(FxI32, FxI32, FxBool, FxBool);

typedef GrScreenResolution_t (FX_CALL *GRWRAPPERFULLSCREENRESOLUTIONEXT)(wxUint32*, wxUint32*);

typedef char ** (FX_CALL *GRQUERYRESOLUTIONSEXT)(FxI32*);

typedef int (*GETTEXADDR)(int tmu, int texsize);

extern GRTEXBUFFEREXT       grTextureBufferExt;
extern GRTEXBUFFEREXT       grTextureAuxBufferExt;
extern GRAUXBUFFEREXT       grAuxBufferExt;
extern GRSTIPPLE            grStippleModeExt;
extern GRSTIPPLE            grStipplePatternExt;
extern GETTEXADDR           GetTexAddr;

#ifndef GR_STIPPLE_DISABLE
#define GR_STIPPLE_DISABLE	0x0
#define GR_STIPPLE_PATTERN	0x1
#define GR_STIPPLE_ROTATE	0x2
#endif

void ReadSettings ();
void ReadSpecialSettings (const char * name);
void WriteSettings (bool saveEmulationSettings = false);

#if 0
//TODO: remove
/******************************************************************
  Function: CaptureScreen
  Purpose:  This function dumps the current frame to a file
  input:    pointer to the directory to save the file to
  output:   none
*******************************************************************/
EXPORT void CALL CaptureScreen ( char * Directory );

/******************************************************************
  Function: ChangeWindow
  Purpose:  to change the window between fullscreen and window
            mode. If the window was in fullscreen this should
			change the screen to window mode and vice vesa.
  input:    none
  output:   none
*******************************************************************/
EXPORT void CALL ChangeWindow (void);

/******************************************************************
  Function: CloseDLL
  Purpose:  This function is called when the emulator is closing
            down allowing the dll to de-initialise.
  input:    none
  output:   none
*******************************************************************/
EXPORT void CALL CloseDLL (void);

/******************************************************************
  Function: DllAbout
  Purpose:  This function is optional function that is provided
            to give further information about the DLL.
  input:    a handle to the window that calls this function
  output:   none
*******************************************************************/
EXPORT void CALL DllAbout ( HWND hParent );

/******************************************************************
  Function: DllConfig
  Purpose:  This function is optional function that is provided
            to allow the user to configure the dll
  input:    a handle to the window that calls this function
  output:   none
*******************************************************************/
EXPORT void CALL DllConfig ( HWND hParent );

/******************************************************************
  Function: DllTest
  Purpose:  This function is optional function that is provided
            to allow the user to test the dll
  input:    a handle to the window that calls this function
  output:   none
*******************************************************************/
EXPORT void CALL DllTest ( HWND hParent );


EXPORT void CALL ReadScreen(void **dest, int *width, int *height);

/******************************************************************
  Function: DrawScreen
  Purpose:  This function is called when the emulator receives a
            WM_PAINT message. This allows the gfx to fit in when
			it is being used in the desktop.
  input:    none
  output:   none
*******************************************************************/
EXPORT void CALL DrawScreen (void);

/******************************************************************
  Function: GetDllInfo
  Purpose:  This function allows the emulator to gather information
            about the dll by filling in the PluginInfo structure.
  input:    a pointer to a PLUGIN_INFO stucture that needs to be
            filled by the function. (see def above)
  output:   none
*******************************************************************/
EXPORT void CALL GetDllInfo ( PLUGIN_INFO * PluginInfo );

/******************************************************************
  Function: InitiateGFX
  Purpose:  This function is called when the DLL is started to give
            information from the emulator that the n64 graphics
			uses. This is not called from the emulation thread.
  Input:    Gfx_Info is passed to this function which is defined
            above.
  Output:   TRUE on success
            FALSE on failure to initialise

  ** note on interrupts **:
  To generate an interrupt set the appropriate bit in MI_INTR_REG
  and then call the function CheckInterrupts to tell the emulator
  that there is a waiting interrupt.
*******************************************************************/
EXPORT int CALL InitiateGFX (GFX_INFO Gfx_Info);

/******************************************************************
  Function: MoveScreen
  Purpose:  This function is called in response to the emulator
            receiving a WM_MOVE passing the xpos and ypos passed
			from that message.
  input:    xpos - the x-coordinate of the upper-left corner of the
            client area of the window.
			ypos - y-coordinate of the upper-left corner of the
			client area of the window.
  output:   none
*******************************************************************/
EXPORT void CALL MoveScreen (int xpos, int ypos);

/******************************************************************
  Function: ProcessDList
  Purpose:  This function is called when there is a Dlist to be
            processed. (High level GFX list)
  input:    none
  output:   none
*******************************************************************/
EXPORT void CALL ProcessDList(void);

/******************************************************************
  Function: ProcessRDPList
  Purpose:  This function is called when there is a Dlist to be
            processed. (Low level GFX list)
  input:    none
  output:   none
*******************************************************************/
EXPORT void CALL ProcessRDPList(void);

/******************************************************************
  Function: RomClosed
  Purpose:  This function is called when a rom is closed.
  input:    none
  output:   none
*******************************************************************/
EXPORT void CALL RomClosed (void);

/******************************************************************
  Function: RomOpen
  Purpose:  This function is called when a rom is open. (from the
            emulation thread)
  input:    none
  output:   none
*******************************************************************/
EXPORT void CALL RomOpen (void);

/******************************************************************
  Function: ShowCFB
  Purpose:  Useally once Dlists are started being displayed, cfb is
            ignored. This function tells the dll to start displaying
			them again.
  input:    none
  output:   none
*******************************************************************/
EXPORT void CALL ShowCFB (void);

/******************************************************************
  Function: UpdateScreen
  Purpose:  This function is called in response to a vsync of the
            screen were the VI bit in MI_INTR_REG has already been
			set
  input:    none
  output:   none
*******************************************************************/
EXPORT void CALL UpdateScreen (void);

/******************************************************************
  Function: ViStatusChanged
  Purpose:  This function is called to notify the dll that the
            ViStatus registers value has been changed.
  input:    none
  output:   none
*******************************************************************/
EXPORT void CALL ViStatusChanged (void);

/******************************************************************
  Function: ViWidthChanged
  Purpose:  This function is called to notify the dll that the
            ViWidth registers value has been changed.
  input:    none
  output:   none
*******************************************************************/
EXPORT void CALL ViWidthChanged (void);


/******************************************************************
  Function: FrameBufferWrite
  Purpose:  This function is called to notify the dll that the
            frame buffer has been modified by CPU at the given address.
  input:    addr		rdram address
			val			val
			size		1 = wxUint8, 2 = wxUint16, 4 = wxUint32
  output:   none
*******************************************************************/
EXPORT void CALL FBWrite(wxUint32, wxUint32);

typedef struct
{
	wxUint32 addr;
	wxUint32 val;
	wxUint32 size;				// 1 = wxUint8, 2 = wxUint16, 4=wxUint32
} FrameBufferModifyEntry;

/******************************************************************
  Function: FrameBufferWriteList
  Purpose:  This function is called to notify the dll that the
            frame buffer has been modified by CPU at the given address.
  input:    FrameBufferModifyEntry *plist
			size = size of the plist, max = 1024
  output:   none
*******************************************************************/
EXPORT void CALL FBWList(FrameBufferModifyEntry *plist, wxUint32 size);

/******************************************************************
  Function: FrameBufferRead
  Purpose:  This function is called to notify the dll that the
            frame buffer memory is beening read at the given address.
			DLL should copy content from its render buffer to the frame buffer
			in N64 RDRAM
			DLL is responsible to maintain its own frame buffer memory addr list
			DLL should copy 4KB block content back to RDRAM frame buffer.
			Emulator should not call this function again if other memory
			is read within the same 4KB range
  input:    addr		rdram address
			val			val
			size		1 = wxUint8, 2 = wxUint16, 4 = wxUint32
  output:   none
*******************************************************************/
EXPORT void CALL FBRead(wxUint32 addr);

/************************************************************************
Function: FBGetFrameBufferInfo
Purpose:  This function is called by the emulator core to retrieve depth
buffer information from the video plugin in order to be able
to notify the video plugin about CPU depth buffer read/write
operations

size:
= 1		byte
= 2		word (16 bit) <-- this is N64 default depth buffer format
= 4		dword (32 bit)

when depth buffer information is not available yet, set all values
in the FrameBufferInfo structure to 0

input:    FrameBufferInfo *pinfo
pinfo is pointed to a FrameBufferInfo structure which to be
filled in by this function
output:   Values are return in the FrameBufferInfo structure
************************************************************************/
EXPORT void CALL FBGetFrameBufferInfo(void *pinfo);

/******************************************************************
   NOTE: THIS HAS BEEN ADDED FOR MUPEN64PLUS AND IS NOT PART OF THE
         ORIGINAL SPEC
  Function: SetConfigDir
  Purpose:  To pass the location where config files should be read/
            written to.
  input:    path to config directory
  output:   none
*******************************************************************/
EXPORT void CALL SetConfigDir(char *configDir);
#endif

#if defined(__cplusplus)
}
#endif
#endif //_GFX_H_INCLUDED__
