From d40ae99422e118188a7f48055dc340c6aca022aa Mon Sep 17 00:00:00 2001 From: Kitty Draper Date: Sat, 5 Mar 2011 21:39:25 -0500 Subject: first commit --- source/gfx.h | 318 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 318 insertions(+) create mode 100644 source/gfx.h (limited to 'source/gfx.h') diff --git a/source/gfx.h b/source/gfx.h new file mode 100644 index 0000000..b145f49 --- /dev/null +++ b/source/gfx.h @@ -0,0 +1,318 @@ +/******************************************************************************* + Snes9x - Portable Super Nintendo Entertainment System (TM) emulator. + + (c) Copyright 1996 - 2002 Gary Henderson (gary.henderson@ntlworld.com) and + Jerremy Koot (jkoot@snes9x.com) + + (c) Copyright 2001 - 2004 John Weidman (jweidman@slip.net) + + (c) Copyright 2002 - 2004 Brad Jorsch (anomie@users.sourceforge.net), + funkyass (funkyass@spam.shaw.ca), + Joel Yliluoma (http://iki.fi/bisqwit/) + Kris Bleakley (codeviolation@hotmail.com), + Matthew Kendora, + Nach (n-a-c-h@users.sourceforge.net), + Peter Bortas (peter@bortas.org) and + zones (kasumitokoduck@yahoo.com) + + C4 x86 assembler and some C emulation code + (c) Copyright 2000 - 2003 zsKnight (zsknight@zsnes.com), + _Demo_ (_demo_@zsnes.com), and Nach + + C4 C++ code + (c) Copyright 2003 Brad Jorsch + + DSP-1 emulator code + (c) Copyright 1998 - 2004 Ivar (ivar@snes9x.com), _Demo_, Gary Henderson, + John Weidman, neviksti (neviksti@hotmail.com), + Kris Bleakley, Andreas Naive + + DSP-2 emulator code + (c) Copyright 2003 Kris Bleakley, John Weidman, neviksti, Matthew Kendora, and + Lord Nightmare (lord_nightmare@users.sourceforge.net + + OBC1 emulator code + (c) Copyright 2001 - 2004 zsKnight, pagefault (pagefault@zsnes.com) and + 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, and Dark Force + + S-DD1 C emulator code + (c) Copyright 2003 Brad Jorsch with research by + Andreas Naive and John Weidman + + S-RTC C emulator code + (c) Copyright 2001 John Weidman + + ST010 C++ emulator code + (c) Copyright 2003 Feather, Kris Bleakley, John Weidman and Matthew Kendora + + Super FX x86 assembler emulator code + (c) Copyright 1998 - 2003 zsKnight, _Demo_, and pagefault + + Super FX C emulator code + (c) Copyright 1997 - 1999 Ivar, Gary Henderson and John Weidman + + + SH assembler code partly based on x86 assembler code + (c) Copyright 2002 - 2004 Marcus Comstedt (marcus@mc.pp.se) + + + 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 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. + + Snes9x is freeware for PERSONAL USE only. Commercial users should + seek permission of the copyright holders first. Commercial use includes + charging money for Snes9x or software derived from Snes9x. + + 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_ + +#include "port.h" +#include "snes9x.h" + +struct SGFX{ + // Initialize these variables + uint8 *Screen; + uint8 *SubScreen; + uint8 *ZBuffer; + uint8 *SubZBuffer; + uint32 Pitch; + + // Setup in call to S9xGraphicsInit() + int Delta; + uint16 *X2; + uint16 *ZERO_OR_X2; + uint16 *ZERO; + uint32 RealPitch; // True pitch of Screen buffer. + uint32 Pitch2; // Same as RealPitch except while using speed up hack for Glide. + uint32 ZPitch; // Pitch of ZBuffer + uint32 PPL; // Number of pixels on each of Screen buffer + uint32 PPLx2; + uint32 PixSize; + uint8 *S; + uint8 *DB; + uint16 *ScreenColors; + uint32 DepthDelta; + uint8 Z1; // Depth for comparison + uint8 Z2; // Depth to save + uint8 ZSprite; // Used to ensure only 1st sprite is drawn per pixel + uint32 FixedColour; + const char *InfoString; + uint32 InfoStringTimeout; + uint32 StartY; + uint32 EndY; + struct ClipData *pCurrentClip; + uint32 Mode7Mask; + uint32 Mode7PriorityMask; + uint8 OBJWidths[128]; + uint8 OBJVisibleTiles[128]; + struct { + uint8 RTOFlags; + int16 Tiles; + struct { + int8 Sprite; + uint8 Line; + } OBJ[32]; + } OBJLines [SNES_HEIGHT_EXTENDED]; + + uint8 r212c; + uint8 r212d; + uint8 r2130; + uint8 r2131; + bool8 Pseudo; + +#ifdef GFX_MULTI_FORMAT + uint32 PixelFormat; + uint32 (*BuildPixel) (uint32 R, uint32 G, uint32 B); + uint32 (*BuildPixel2) (uint32 R, uint32 G, uint32 B); + void (*DecomposePixel) (uint32 Pixel, uint32 &R, uint32 &G, uint32 &B); +#endif +}; + +struct SLineData { + struct { + uint16 VOffset; + uint16 HOffset; + } BG [4]; +}; + +#define H_FLIP 0x4000 +#define V_FLIP 0x8000 +#define BLANK_TILE 2 + +struct SBG +{ + uint32 TileSize; + uint32 BitShift; + uint32 TileShift; + uint32 TileAddress; + uint32 NameSelect; + uint32 SCBase; + + uint32 StartPalette; + uint32 PaletteShift; + uint32 PaletteMask; + + uint8 *Buffer; + uint8 *Buffered; + bool8 DirectColourMode; +}; + +struct SLineMatrixData +{ + short MatrixA; + short MatrixB; + short MatrixC; + short MatrixD; + short CentreX; + short CentreY; +}; + +extern uint32 odd_high [4][16]; +extern uint32 odd_low [4][16]; +extern uint32 even_high [4][16]; +extern uint32 even_low [4][16]; +extern SBG BG; +extern uint16 DirectColourMaps [8][256]; + +extern uint8 add32_32 [32][32]; +extern uint8 add32_32_half [32][32]; +extern uint8 sub32_32 [32][32]; +extern uint8 sub32_32_half [32][32]; +extern uint8 mul_brightness [16][32]; + +// Could use BSWAP instruction on Intel port... +#define SWAP_DWORD(dw) dw = ((dw & 0xff) << 24) | ((dw & 0xff00) << 8) | \ + ((dw & 0xff0000) >> 8) | ((dw & 0xff000000) >> 24) + +#ifdef FAST_LSB_WORD_ACCESS +#define READ_2BYTES(s) (*(uint16 *) (s)) +#define WRITE_2BYTES(s, d) *(uint16 *) (s) = (d) +#else +#ifdef LSB_FIRST +#define READ_2BYTES(s) (*(uint8 *) (s) | (*((uint8 *) (s) + 1) << 8)) +#define WRITE_2BYTES(s, d) *(uint8 *) (s) = (d), \ + *((uint8 *) (s) + 1) = (d) >> 8 +#else // else MSB_FISRT +#define READ_2BYTES(s) (*(uint8 *) (s) | (*((uint8 *) (s) + 1) << 8)) +#define WRITE_2BYTES(s, d) *(uint8 *) (s) = (d), \ + *((uint8 *) (s) + 1) = (d) >> 8 +#endif // LSB_FIRST +#endif // i386 + +#define SUB_SCREEN_DEPTH 0 +#define MAIN_SCREEN_DEPTH 32 + +#if defined(OLD_COLOUR_BLENDING) +#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)] +#else +#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)) +#endif + +#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) + +#if defined(OLD_COLOUR_BLENDING) +#define COLOR_SUB(C1, C2) \ +GFX.ZERO_OR_X2 [(((C1) | RGB_HI_BITS_MASKx2) - \ + ((C2) & RGB_REMOVE_LOW_BITS_MASK)) >> 1] +#elif !defined(NEW_COLOUR_BLENDING) +#define COLOR_SUB(C1, C2) \ +(GFX.ZERO_OR_X2 [(((C1) | RGB_HI_BITS_MASKx2) - \ + ((C2) & RGB_REMOVE_LOW_BITS_MASK)) >> 1] + \ +((C1) & RGB_LOW_BITS_MASK) - ((C2) & RGB_LOW_BITS_MASK)) +#else +inline uint16 COLOR_SUB(uint16, uint16); + +inline uint16 COLOR_SUB(uint16 C1, uint16 C2) +{ + uint16 mC1, mC2, v = 0; + + 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; +} +#endif + +#define COLOR_SUB1_2(C1, C2) \ +GFX.ZERO [(((C1) | RGB_HI_BITS_MASKx2) - \ + ((C2) & RGB_REMOVE_LOW_BITS_MASK)) >> 1] + +typedef void (*NormalTileRenderer) (uint32 Tile, uint32 Offset, + uint32 StartLine, uint32 LineCount); +typedef void (*ClippedTileRenderer) (uint32 Tile, uint32 Offset, + uint32 StartPixel, uint32 Width, + uint32 StartLine, uint32 LineCount); +typedef void (*LargePixelRenderer) (uint32 Tile, uint32 Offset, + uint32 StartPixel, uint32 Pixels, + uint32 StartLine, uint32 LineCount); + +START_EXTERN_C +void S9xStartScreenRefresh (); +void S9xDrawScanLine (uint8 Line); +void S9xEndScreenRefresh (); +void S9xSetupOBJ (); +void S9xUpdateScreen (); +void RenderLine (uint8 line); +void S9xBuildDirectColourMaps (); + +// External port interface which must be implemented or initialised for each +// port. +extern struct SGFX GFX; + +bool8 S9xGraphicsInit (); +void S9xGraphicsDeinit(); +bool8 S9xInitUpdate (void); +bool8 S9xDeinitUpdate (int Width, int Height, bool8 sixteen_bit); +void S9xSyncSpeed (); + +#ifdef GFX_MULTI_FORMAT +bool8 S9xSetRenderPixelFormat (int format); +#endif + +END_EXTERN_C + +#endif + -- cgit v1.2.3