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snes9xgx/source/snes9x/gfx.h
dborth e7d0b3df78 initial port of snes9x 1.52 beta
2009-11-25 06:35:14 +00:00

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C
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/**********************************************************************************
Snes9x - Portable Super Nintendo Entertainment System (TM) emulator.
(c) Copyright 1996 - 2002 Gary Henderson (gary.henderson@ntlworld.com),
Jerremy Koot (jkoot@snes9x.com)
(c) Copyright 2002 - 2004 Matthew Kendora
(c) Copyright 2002 - 2005 Peter Bortas (peter@bortas.org)
(c) Copyright 2004 - 2005 Joel Yliluoma (http://iki.fi/bisqwit/)
(c) Copyright 2001 - 2006 John Weidman (jweidman@slip.net)
(c) Copyright 2002 - 2006 funkyass (funkyass@spam.shaw.ca),
Kris Bleakley (codeviolation@hotmail.com)
(c) Copyright 2002 - 2007 Brad Jorsch (anomie@users.sourceforge.net),
Nach (n-a-c-h@users.sourceforge.net),
zones (kasumitokoduck@yahoo.com)
(c) Copyright 2006 - 2007 nitsuja
BS-X C emulator code
(c) Copyright 2005 - 2006 Dreamer Nom,
zones
C4 x86 assembler and some C emulation code
(c) Copyright 2000 - 2003 _Demo_ (_demo_@zsnes.com),
Nach,
zsKnight (zsknight@zsnes.com)
C4 C++ code
(c) Copyright 2003 - 2006 Brad Jorsch,
Nach
DSP-1 emulator code
(c) Copyright 1998 - 2006 _Demo_,
Andreas Naive (andreasnaive@gmail.com)
Gary Henderson,
Ivar (ivar@snes9x.com),
John Weidman,
Kris Bleakley,
Matthew Kendora,
Nach,
neviksti (neviksti@hotmail.com)
DSP-2 emulator code
(c) Copyright 2003 John Weidman,
Kris Bleakley,
Lord Nightmare (lord_nightmare@users.sourceforge.net),
Matthew Kendora,
neviksti
DSP-3 emulator code
(c) Copyright 2003 - 2006 John Weidman,
Kris Bleakley,
Lancer,
z80 gaiden
DSP-4 emulator code
(c) Copyright 2004 - 2006 Dreamer Nom,
John Weidman,
Kris Bleakley,
Nach,
z80 gaiden
OBC1 emulator code
(c) Copyright 2001 - 2004 zsKnight,
pagefault (pagefault@zsnes.com),
Kris Bleakley,
Ported from x86 assembler to C by sanmaiwashi
SPC7110 and RTC C++ emulator code
(c) Copyright 2002 Matthew Kendora with research by
zsKnight,
John Weidman,
Dark Force
S-DD1 C emulator code
(c) Copyright 2003 Brad Jorsch with research by
Andreas Naive,
John Weidman
S-RTC C emulator code
(c) Copyright 2001-2006 byuu,
John Weidman
ST010 C++ emulator code
(c) Copyright 2003 Feather,
John Weidman,
Kris Bleakley,
Matthew Kendora
Super FX x86 assembler emulator code
(c) Copyright 1998 - 2003 _Demo_,
pagefault,
zsKnight,
Super FX C emulator code
(c) Copyright 1997 - 1999 Ivar,
Gary Henderson,
John Weidman
Sound DSP emulator code is derived from SNEeSe and OpenSPC:
(c) Copyright 1998 - 2003 Brad Martin
(c) Copyright 1998 - 2006 Charles Bilyue'
SH assembler code partly based on x86 assembler code
(c) Copyright 2002 - 2004 Marcus Comstedt (marcus@mc.pp.se)
2xSaI filter
(c) Copyright 1999 - 2001 Derek Liauw Kie Fa
HQ2x, HQ3x, HQ4x filters
(c) Copyright 2003 Maxim Stepin (maxim@hiend3d.com)
Win32 GUI code
(c) Copyright 2003 - 2006 blip,
funkyass,
Matthew Kendora,
Nach,
nitsuja
Mac OS GUI code
(c) Copyright 1998 - 2001 John Stiles
(c) Copyright 2001 - 2007 zones
Specific ports contains the works of other authors. See headers in
individual files.
Snes9x homepage: http://www.snes9x.com
Permission to use, copy, modify and/or distribute Snes9x in both binary
and source form, for non-commercial purposes, is hereby granted without
fee, providing that this license information and copyright notice appear
with all copies and any derived work.
This software is provided 'as-is', without any express or implied
warranty. In no event shall the authors be held liable for any damages
arising from the use of this software or it's derivatives.
Snes9x is freeware for PERSONAL USE only. Commercial users should
seek permission of the copyright holders first. Commercial use includes,
but is not limited to, charging money for Snes9x or software derived from
Snes9x, including Snes9x or derivatives in commercial game bundles, and/or
using Snes9x as a promotion for your commercial product.
The copyright holders request that bug fixes and improvements to the code
should be forwarded to them so everyone can benefit from the modifications
in future versions.
Super NES and Super Nintendo Entertainment System are trademarks of
Nintendo Co., Limited and its subsidiary companies.
**********************************************************************************/
#ifndef _GFX_H_
#define _GFX_H_
struct SGFX
{
uint16 *Screen;
uint16 *SubScreen;
uint8 *ZBuffer;
uint8 *SubZBuffer;
uint32 Pitch;
uint32 ScreenSize;
uint16 *S;
uint8 *DB;
uint16 *X2;
uint16 *ZERO;
uint32 RealPPL; // true PPL of Screen buffer
uint32 PPL; // number of pixels on each of Screen buffer
uint32 LinesPerTile; // number of lines in 1 tile (4 or 8 due to interlace)
uint16 *ScreenColors; // screen colors for rendering main
uint16 *RealScreenColors; // screen colors, ignoring color window clipping
uint8 Z1; // depth for comparison
uint8 Z2; // depth to save
uint32 FixedColour;
uint8 DoInterlace;
uint8 InterlaceFrame;
uint32 StartY;
uint32 EndY;
bool8 ClipColors;
uint8 OBJWidths[128];
uint8 OBJVisibleTiles[128];
struct ClipData *Clip;
struct
{
uint8 RTOFlags;
int16 Tiles;
struct
{
int8 Sprite;
uint8 Line;
} OBJ[32];
} OBJLines[SNES_HEIGHT_EXTENDED];
#ifdef GFX_MULTI_FORMAT
uint32 PixelFormat;
uint32 (*BuildPixel) (uint32, uint32, uint32);
uint32 (*BuildPixel2) (uint32, uint32, uint32);
void (*DecomposePixel) (uint32, uint32 &, uint32 &, uint32 &);
#endif
void (*DrawBackdropMath) (uint32, uint32, uint32);
void (*DrawBackdropNomath) (uint32, uint32, uint32);
void (*DrawTileMath) (uint32, uint32, uint32, uint32);
void (*DrawTileNomath) (uint32, uint32, uint32, uint32);
void (*DrawClippedTileMath) (uint32, uint32, uint32, uint32, uint32, uint32);
void (*DrawClippedTileNomath) (uint32, uint32, uint32, uint32, uint32, uint32);
void (*DrawMosaicPixelMath) (uint32, uint32, uint32, uint32, uint32, uint32);
void (*DrawMosaicPixelNomath) (uint32, uint32, uint32, uint32, uint32, uint32);
void (*DrawMode7BG1Math) (uint32, uint32, int);
void (*DrawMode7BG1Nomath) (uint32, uint32, int);
void (*DrawMode7BG2Math) (uint32, uint32, int);
void (*DrawMode7BG2Nomath) (uint32, uint32, int);
const char *InfoString;
uint32 InfoStringTimeout;
char FrameDisplayString[256];
};
struct SBG
{
uint8 (*ConvertTile) (uint8 *, uint32, uint32);
uint8 (*ConvertTileFlip) (uint8 *, uint32, uint32);
uint32 TileSizeH;
uint32 TileSizeV;
uint32 OffsetSizeH;
uint32 OffsetSizeV;
uint32 TileShift;
uint32 TileAddress;
uint32 NameSelect;
uint32 SCBase;
uint32 StartPalette;
uint32 PaletteShift;
uint32 PaletteMask;
uint8 EnableMath;
uint8 InterlaceLine;
uint8 *Buffer;
uint8 *BufferFlip;
uint8 *Buffered;
uint8 *BufferedFlip;
bool8 DirectColourMode;
};
struct SLineData
{
struct
{
uint16 VOffset;
uint16 HOffset;
} BG[4];
};
struct SLineMatrixData
{
short MatrixA;
short MatrixB;
short MatrixC;
short MatrixD;
short CentreX;
short CentreY;
short M7HOFS;
short M7VOFS;
};
extern uint16 BlackColourMap[256];
extern uint16 DirectColourMaps[8][256];
extern uint8 mul_brightness[16][32];
extern struct SBG BG;
extern struct SGFX GFX;
#define H_FLIP 0x4000
#define V_FLIP 0x8000
#define BLANK_TILE 2
#define COLOR_ADD1_2(C1, C2) \
((((((C1) & RGB_REMOVE_LOW_BITS_MASK) + \
((C2) & RGB_REMOVE_LOW_BITS_MASK)) >> 1) + \
((C1) & (C2) & RGB_LOW_BITS_MASK)) | ALPHA_BITS_MASK)
#define COLOR_ADD(C1, C2) \
(GFX.X2[((((C1) & RGB_REMOVE_LOW_BITS_MASK) + \
((C2) & RGB_REMOVE_LOW_BITS_MASK)) >> 1) + \
((C1) & (C2) & RGB_LOW_BITS_MASK)] | \
(((C1) ^ (C2)) & RGB_LOW_BITS_MASK))
#define COLOR_SUB1_2(C1, C2) \
GFX.ZERO[(((C1) | RGB_HI_BITS_MASKx2) - \
((C2) & RGB_REMOVE_LOW_BITS_MASK)) >> 1]
inline uint16 COLOR_SUB (uint16 C1, uint16 C2)
{
uint16 mC1, mC2, v = ALPHA_BITS_MASK;
mC1 = C1 & FIRST_COLOR_MASK;
mC2 = C2 & FIRST_COLOR_MASK;
if (mC1 > mC2) v += (mC1 - mC2);
mC1 = C1 & SECOND_COLOR_MASK;
mC2 = C2 & SECOND_COLOR_MASK;
if (mC1 > mC2) v += (mC1 - mC2);
mC1 = C1 & THIRD_COLOR_MASK;
mC2 = C2 & THIRD_COLOR_MASK;
if (mC1 > mC2) v += (mC1 - mC2);
return (v);
}
void S9xStartScreenRefresh (void);
void S9xEndScreenRefresh (void);
void S9xUpdateScreen (void);
void S9xBuildDirectColourMaps (void);
void RenderLine (uint8);
void S9xComputeClipWindows (void);
void S9xDisplayChar (uint16 *, uint8);
// called automatically unless Settings.AutoDisplayMessages is false
void S9xDisplayMessages (uint16 *, int, int, int, int);
#ifdef GFX_MULTI_FORMAT
bool8 S9xSetRenderPixelFormat (int);
#endif
// external port interface which must be implemented or initialised for each port
bool8 S9xGraphicsInit (void);
void S9xGraphicsDeinit (void);
bool8 S9xInitUpdate (void);
bool8 S9xDeinitUpdate (int, int);
bool8 S9xContinueUpdate (int, int);
void S9xReRefresh (void);
void S9xSetPalette (void);
void S9xSyncSpeed (void);
// called instead of S9xDisplayString if set to non-NULL
extern void (*S9xCustomDisplayString) (const char *, int, int, bool);
#endif
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