From 804169dd621a3ad3eec1a32ce30350de667fee80 Mon Sep 17 00:00:00 2001 From: aliaspider Date: Thu, 30 Oct 2014 00:23:30 +0100 Subject: apply a facelift --- source/c4.c | 226 ++++++++++++++++++++++++++++++------------------------------ 1 file changed, 113 insertions(+), 113 deletions(-) (limited to 'source/c4.c') diff --git a/source/c4.c b/source/c4.c index cda3e11..0a48c0b 100644 --- a/source/c4.c +++ b/source/c4.c @@ -1,6 +1,6 @@ /******************************************************************************* Snes9x - Portable Super Nintendo Entertainment System (TM) emulator. - + (c) Copyright 1996 - 2002 Gary Henderson (gary.henderson@ntlworld.com) and Jerremy Koot (jkoot@snes9x.com) @@ -43,46 +43,46 @@ 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 x86 assembler emulator code + (c) Copyright 1998 - 2003 zsKnight, _Demo_, and pagefault - Super FX C emulator code + 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) + (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. *******************************************************************************/ @@ -104,85 +104,85 @@ static double tanval; static double c4x, c4y, c4z; static double c4x2, c4y2, c4z2; -void C4TransfWireFrame () +void C4TransfWireFrame() { - c4x = (double) C4WFXVal; - c4y = (double) C4WFYVal; - c4z = (double) C4WFZVal - 0x95; - - // Rotate X - tanval = -(double) C4WFX2Val * 3.14159265 * 2 / 128; - c4y2 = c4y * cos (tanval) - c4z * sin (tanval); - c4z2 = c4y * sin (tanval) + c4z * cos (tanval); - - // Rotate Y - tanval = -(double)C4WFY2Val*3.14159265*2/128; - c4x2 = c4x * cos (tanval) + c4z2 * sin (tanval); - c4z = c4x * - sin (tanval) + c4z2 * cos (tanval); - - // Rotate Z - tanval = -(double) C4WFDist * 3.14159265*2 / 128; - c4x = c4x2 * cos (tanval) - c4y2 * sin (tanval); - c4y = c4x2 * sin (tanval) + c4y2 * cos (tanval); - - // Scale - C4WFXVal = (short) (c4x*(double)C4WFScale/(0x90*(c4z+0x95))*0x95); - C4WFYVal = (short) (c4y*(double)C4WFScale/(0x90*(c4z+0x95))*0x95); + c4x = (double) C4WFXVal; + c4y = (double) C4WFYVal; + c4z = (double) C4WFZVal - 0x95; + + // Rotate X + tanval = -(double) C4WFX2Val * 3.14159265 * 2 / 128; + c4y2 = c4y * cos(tanval) - c4z * sin(tanval); + c4z2 = c4y * sin(tanval) + c4z * cos(tanval); + + // Rotate Y + tanval = -(double)C4WFY2Val * 3.14159265 * 2 / 128; + c4x2 = c4x * cos(tanval) + c4z2 * sin(tanval); + c4z = c4x * - sin(tanval) + c4z2 * cos(tanval); + + // Rotate Z + tanval = -(double) C4WFDist * 3.14159265 * 2 / 128; + c4x = c4x2 * cos(tanval) - c4y2 * sin(tanval); + c4y = c4x2 * sin(tanval) + c4y2 * cos(tanval); + + // Scale + C4WFXVal = (short)(c4x * (double)C4WFScale / (0x90 * (c4z + 0x95)) * 0x95); + C4WFYVal = (short)(c4y * (double)C4WFScale / (0x90 * (c4z + 0x95)) * 0x95); } -void C4TransfWireFrame2 () +void C4TransfWireFrame2() { - c4x = (double)C4WFXVal; - c4y = (double)C4WFYVal; - c4z = (double)C4WFZVal; - - // Rotate X - tanval = -(double) C4WFX2Val * 3.14159265 * 2 / 128; - c4y2 = c4y * cos (tanval) - c4z * sin (tanval); - c4z2 = c4y * sin (tanval) + c4z * cos (tanval); - - // Rotate Y - tanval = -(double) C4WFY2Val * 3.14159265 * 2 / 128; - c4x2 = c4x * cos (tanval) + c4z2 * sin (tanval); - c4z = c4x * -sin (tanval) + c4z2 * cos (tanval); - - // Rotate Z - tanval = -(double)C4WFDist * 3.14159265 * 2 / 128; - c4x = c4x2 * cos (tanval) - c4y2 * sin (tanval); - c4y = c4x2 * sin (tanval) + c4y2 * cos (tanval); - - // Scale - C4WFXVal =(short)(c4x * (double)C4WFScale / 0x100); - C4WFYVal =(short)(c4y * (double)C4WFScale / 0x100); + c4x = (double)C4WFXVal; + c4y = (double)C4WFYVal; + c4z = (double)C4WFZVal; + + // Rotate X + tanval = -(double) C4WFX2Val * 3.14159265 * 2 / 128; + c4y2 = c4y * cos(tanval) - c4z * sin(tanval); + c4z2 = c4y * sin(tanval) + c4z * cos(tanval); + + // Rotate Y + tanval = -(double) C4WFY2Val * 3.14159265 * 2 / 128; + c4x2 = c4x * cos(tanval) + c4z2 * sin(tanval); + c4z = c4x * -sin(tanval) + c4z2 * cos(tanval); + + // Rotate Z + tanval = -(double)C4WFDist * 3.14159265 * 2 / 128; + c4x = c4x2 * cos(tanval) - c4y2 * sin(tanval); + c4y = c4x2 * sin(tanval) + c4y2 * cos(tanval); + + // Scale + C4WFXVal = (short)(c4x * (double)C4WFScale / 0x100); + C4WFYVal = (short)(c4y * (double)C4WFScale / 0x100); } -void C4CalcWireFrame () +void C4CalcWireFrame() { - C4WFXVal = C4WFX2Val - C4WFXVal; - C4WFYVal = C4WFY2Val - C4WFYVal; - if (abs (C4WFXVal) > abs (C4WFYVal)) - { - C4WFDist = abs (C4WFXVal) + 1; - C4WFYVal = (short) (256 * (double) C4WFYVal / abs (C4WFXVal)); - if (C4WFXVal < 0) - C4WFXVal = -256; - else - C4WFXVal = 256; - } - else - { - if (C4WFYVal != 0) - { - C4WFDist = abs(C4WFYVal)+1; - C4WFXVal = (short) (256 * (double)C4WFXVal / abs (C4WFYVal)); - if (C4WFYVal < 0) - C4WFYVal = -256; - else - C4WFYVal = 256; - } - else - C4WFDist = 0; - } + C4WFXVal = C4WFX2Val - C4WFXVal; + C4WFYVal = C4WFY2Val - C4WFYVal; + if (abs(C4WFXVal) > abs(C4WFYVal)) + { + C4WFDist = abs(C4WFXVal) + 1; + C4WFYVal = (short)(256 * (double) C4WFYVal / abs(C4WFXVal)); + if (C4WFXVal < 0) + C4WFXVal = -256; + else + C4WFXVal = 256; + } + else + { + if (C4WFYVal != 0) + { + C4WFDist = abs(C4WFYVal) + 1; + C4WFXVal = (short)(256 * (double)C4WFXVal / abs(C4WFYVal)); + if (C4WFYVal < 0) + C4WFYVal = -256; + else + C4WFYVal = 256; + } + else + C4WFDist = 0; + } } short C41FXVal; @@ -191,46 +191,46 @@ short C41FAngleRes; short C41FDist; short C41FDistVal; -void C4Op1F () +void C4Op1F() { - if (C41FXVal == 0) - { - if (C41FYVal > 0) - C41FAngleRes = 0x80; - else - C41FAngleRes = 0x180; - } - else - { - tanval = (double) C41FYVal / C41FXVal; - C41FAngleRes = (short) (atan (tanval) / (3.141592675 * 2) * 512); - C41FAngleRes = C41FAngleRes; - if (C41FXVal< 0) - C41FAngleRes += 0x100; - C41FAngleRes &= 0x1FF; - } + if (C41FXVal == 0) + { + if (C41FYVal > 0) + C41FAngleRes = 0x80; + else + C41FAngleRes = 0x180; + } + else + { + tanval = (double) C41FYVal / C41FXVal; + C41FAngleRes = (short)(atan(tanval) / (3.141592675 * 2) * 512); + C41FAngleRes = C41FAngleRes; + if (C41FXVal < 0) + C41FAngleRes += 0x100; + C41FAngleRes &= 0x1FF; + } } void C4Op15() { - tanval = sqrt ((double) C41FYVal * C41FYVal + (double) C41FXVal * C41FXVal); - C41FDist = (short) tanval; + tanval = sqrt((double) C41FYVal * C41FYVal + (double) C41FXVal * C41FXVal); + C41FDist = (short) tanval; } void C4Op0D() { - tanval = sqrt ((double) C41FYVal * C41FYVal + (double) C41FXVal * C41FXVal); - tanval = C41FDistVal / tanval; - C41FYVal = (short) (C41FYVal * tanval * 0.99); - C41FXVal = (short) (C41FXVal * tanval * 0.98); + tanval = sqrt((double) C41FYVal * C41FYVal + (double) C41FXVal * C41FXVal); + tanval = C41FDistVal / tanval; + C41FYVal = (short)(C41FYVal * tanval * 0.99); + C41FXVal = (short)(C41FXVal * tanval * 0.98); } #ifdef ZSNES_C4 -void C4LoaDMem(char *C4RAM) +void C4LoaDMem(char* C4RAM) { - memmove(C4RAM+(READ_WORD(C4RAM+0x1f45)&0x1fff), - S9xGetMemPointer(READ_3WORD(C4RAM+0x1f40)), - READ_WORD(C4RAM+0x1f43)); + memmove(C4RAM + (READ_WORD(C4RAM + 0x1f45) & 0x1fff), + S9xGetMemPointer(READ_3WORD(C4RAM + 0x1f40)), + READ_WORD(C4RAM + 0x1f43)); } #endif -- cgit v1.2.3