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/***************************************************************************
gpu.h - description
-------------------
begin : Sun Oct 28 2001
copyright : (C) 2001 by Pete Bernert
email : BlackDove@addcom.de
***************************************************************************/
/***************************************************************************
* *
* 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 *
* (at your option) any later version. See also the license.txt file for *
* additional informations. *
* *
***************************************************************************/
#ifndef _PSX_GPU_
#define _PSX_GPU_
#define INFO_TW 0
#define INFO_DRAWSTART 1
#define INFO_DRAWEND 2
#define INFO_DRAWOFF 3
#define SHADETEXBIT(x) ((x>>24) & 0x1)
#define SEMITRANSBIT(x) ((x>>25) & 0x1)
#define PSXRGB(r,g,b) ((g<<10)|(b<<5)|r)
#define DATAREGISTERMODES unsigned short
#define DR_NORMAL 0
#define DR_VRAMTRANSFER 1
#define GPUSTATUS_ODDLINES 0x80000000
#define GPUSTATUS_DMABITS 0x60000000 // Two bits
#define GPUSTATUS_READYFORCOMMANDS 0x10000000
#define GPUSTATUS_READYFORVRAM 0x08000000
#define GPUSTATUS_IDLE 0x04000000
#define GPUSTATUS_DISPLAYDISABLED 0x00800000
#define GPUSTATUS_INTERLACED 0x00400000
#define GPUSTATUS_RGB24 0x00200000
#define GPUSTATUS_PAL 0x00100000
#define GPUSTATUS_DOUBLEHEIGHT 0x00080000
#define GPUSTATUS_WIDTHBITS 0x00070000 // Three bits
#define GPUSTATUS_MASKENABLED 0x00001000
#define GPUSTATUS_MASKDRAWN 0x00000800
#define GPUSTATUS_DRAWINGALLOWED 0x00000400
#define GPUSTATUS_DITHER 0x00000200
#define GPUIsBusy (lGPUstatusRet &= ~GPUSTATUS_IDLE)
#define GPUIsIdle (lGPUstatusRet |= GPUSTATUS_IDLE)
#define GPUIsNotReadyForCommands (lGPUstatusRet &= ~GPUSTATUS_READYFORCOMMANDS)
#define GPUIsReadyForCommands (lGPUstatusRet |= GPUSTATUS_READYFORCOMMANDS)
#define CALLBACK
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/time.h>
#include <math.h>
#include <stdint.h>
#include <unistd.h>
/////////////////////////////////////////////////////////////////////////////
// byteswappings
#define SWAP16(x) ({ uint16_t y=(x); (((y)>>8 & 0xff) | ((y)<<8 & 0xff00)); })
#define SWAP32(x) ({ uint32_t y=(x); (((y)>>24 & 0xfful) | ((y)>>8 & 0xff00ul) | ((y)<<8 & 0xff0000ul) | ((y)<<24 & 0xff000000ul)); })
#ifdef __BIG_ENDIAN__
// big endian config
#define HOST2LE32(x) SWAP32(x)
#define HOST2BE32(x) (x)
#define LE2HOST32(x) SWAP32(x)
#define BE2HOST32(x) (x)
#define HOST2LE16(x) SWAP16(x)
#define HOST2BE16(x) (x)
#define LE2HOST16(x) SWAP16(x)
#define BE2HOST16(x) (x)
#else
// little endian config
#define HOST2LE32(x) (x)
#define HOST2BE32(x) SWAP32(x)
#define LE2HOST32(x) (x)
#define BE2HOST32(x) SWAP32(x)
#define HOST2LE16(x) (x)
#define HOST2BE16(x) SWAP16(x)
#define LE2HOST16(x) (x)
#define BE2HOST16(x) SWAP16(x)
#endif
#define GETLEs16(X) ((int16_t)GETLE16((uint16_t *)X))
#define GETLEs32(X) ((int16_t)GETLE32((uint16_t *)X))
#define GETLE16(X) LE2HOST16(*(uint16_t *)X)
#define GETLE32_(X) LE2HOST32(*(uint32_t *)X)
#define GETLE16D(X) ({uint32_t val = GETLE32(X); (val<<16 | val >> 16);})
#define PUTLE16(X, Y) do{*((uint16_t *)X)=HOST2LE16((uint16_t)Y);}while(0)
#define PUTLE32_(X, Y) do{*((uint32_t *)X)=HOST2LE16((uint32_t)Y);}while(0)
#ifdef __arm__
#define GETLE32(X) (*(uint16_t *)(X)|(((uint16_t *)(X))[1]<<16))
#define PUTLE32(X, Y) do{uint16_t *p_=(uint16_t *)(X);uint32_t y_=Y;p_[0]=y_;p_[1]=y_>>16;}while(0)
#else
#define GETLE32 GETLE32_
#define PUTLE32 PUTLE32_
#endif
/////////////////////////////////////////////////////////////////////////////
typedef struct VRAMLOADTTAG
{
short x;
short y;
short Width;
short Height;
short RowsRemaining;
short ColsRemaining;
unsigned short *ImagePtr;
} VRAMLoad_t;
/////////////////////////////////////////////////////////////////////////////
typedef struct PSXPOINTTAG
{
int32_t x;
int32_t y;
} PSXPoint_t;
typedef struct PSXSPOINTTAG
{
short x;
short y;
} PSXSPoint_t;
typedef struct PSXRECTTAG
{
short x0;
short x1;
short y0;
short y1;
} PSXRect_t;
// linux defines for some windows stuff
#define FALSE 0
#define TRUE 1
#define BOOL unsigned short
#define LOWORD(l) ((unsigned short)(l))
#define HIWORD(l) ((unsigned short)(((uint32_t)(l) >> 16) & 0xFFFF))
#define max(a,b) (((a) > (b)) ? (a) : (b))
#define min(a,b) (((a) < (b)) ? (a) : (b))
#define DWORD uint32_t
#ifndef __int64
#define __int64 long long int
#endif
typedef struct RECTTAG
{
int left;
int top;
int right;
int bottom;
}RECT;
/////////////////////////////////////////////////////////////////////////////
typedef struct TWINTAG
{
PSXRect_t Position;
int xmask, ymask;
} TWin_t;
/////////////////////////////////////////////////////////////////////////////
typedef struct PSXDISPLAYTAG
{
PSXPoint_t DisplayModeNew;
PSXPoint_t DisplayMode;
PSXPoint_t DisplayPosition;
PSXPoint_t DisplayEnd;
int32_t Double;
int32_t Height;
int32_t PAL;
int32_t InterlacedNew;
int32_t Interlaced;
int32_t RGB24New;
int32_t RGB24;
PSXSPoint_t DrawOffset;
int32_t Disabled;
PSXRect_t Range;
} PSXDisplay_t;
/////////////////////////////////////////////////////////////////////////////
// draw.c
extern int32_t GlobalTextAddrX,GlobalTextAddrY,GlobalTextTP;
extern int32_t GlobalTextABR,GlobalTextPAGE;
extern short ly0,lx0,ly1,lx1,ly2,lx2,ly3,lx3;
extern long lLowerpart;
extern BOOL bCheckMask;
extern unsigned short sSetMask;
extern unsigned long lSetMask;
extern short g_m1;
extern short g_m2;
extern short g_m3;
extern short DrawSemiTrans;
// prim.c
extern BOOL bUsingTWin;
extern TWin_t TWin;
extern void (*primTableJ[256])(unsigned char *);
extern void (*primTableSkip[256])(unsigned char *);
extern unsigned short usMirror;
extern int iDither;
extern uint32_t dwCfgFixes;
extern uint32_t dwActFixes;
extern int iUseFixes;
extern int iUseDither;
extern BOOL bDoVSyncUpdate;
extern int32_t drawX;
extern int32_t drawY;
extern int32_t drawW;
extern int32_t drawH;
// gpu.h
#define OPAQUEON 10
#define OPAQUEOFF 11
#define KEY_RESETTEXSTORE 1
#define KEY_SHOWFPS 2
#define KEY_RESETOPAQUE 4
#define KEY_RESETDITHER 8
#define KEY_RESETFILTER 16
#define KEY_RESETADVBLEND 32
#define KEY_BADTEXTURES 128
#define KEY_CHECKTHISOUT 256
#if !defined(__BIG_ENDIAN__) || defined(__x86_64__) || defined(__i386__)
#ifndef __LITTLE_ENDIAN__
#define __LITTLE_ENDIAN__
#endif
#endif
#ifdef __LITTLE_ENDIAN__
#define RED(x) (x & 0xff)
#define BLUE(x) ((x>>16) & 0xff)
#define GREEN(x) ((x>>8) & 0xff)
#define COLOR(x) (x & 0xffffff)
#elif defined __BIG_ENDIAN__
#define RED(x) ((x>>24) & 0xff)
#define BLUE(x) ((x>>8) & 0xff)
#define GREEN(x) ((x>>16) & 0xff)
#define COLOR(x) SWAP32(x & 0xffffff)
#endif
// gpu.c
extern VRAMLoad_t VRAMWrite;
extern VRAMLoad_t VRAMRead;
extern DATAREGISTERMODES DataWriteMode;
extern DATAREGISTERMODES DataReadMode;
extern short sDispWidths[];
extern BOOL bDebugText;
extern PSXDisplay_t PSXDisplay;
extern PSXDisplay_t PreviousPSXDisplay;
extern BOOL bSkipNextFrame;
extern long lGPUstatusRet;
extern unsigned char * psxVSecure;
extern unsigned char * psxVub;
extern signed char * psxVsb;
extern unsigned short * psxVuw;
extern signed short * psxVsw;
extern uint32_t * psxVul;
extern int32_t * psxVsl;
extern unsigned short * psxVuw_eom;
extern BOOL bChangeWinMode;
extern long lSelectedSlot;
extern BOOL bInitCap;
extern DWORD dwLaceCnt;
extern uint32_t lGPUInfoVals[];
extern uint32_t ulStatusControl[];
// fps.c
extern int UseFrameLimit;
extern int UseFrameSkip;
extern float fFrameRate;
extern int iFrameLimit;
extern float fFrameRateHz;
extern float fps_skip;
extern float fps_cur;
// draw.c
void DoBufferSwap(void);
void DoClearScreenBuffer(void);
void DoClearFrontBuffer(void);
unsigned long ulInitDisplay(void);
void CloseDisplay(void);
#endif
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