rename gpu_senquack to gpu_unai

[pcsx_rearmed.git] / plugins / gpu_senquack / gpu_fixedpoint.h

diff --git a/plugins/gpu_senquack/gpu_fixedpoint.h b/plugins/gpu_senquack/gpu_fixedpoint.h
deleted file mode 100644 (file)
index 5df42cf..0000000
--- a/plugins/gpu_senquack/gpu_fixedpoint.h
+++ /dev/null
@@ -1,134 +0,0 @@
-/***************************************************************************
- *   Copyright (C) 2010 PCSX4ALL Team                                      *
- *   Copyright (C) 2010 Unai                                               *
- *                                                                         *
- *   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.                                   *
- *                                                                         *
- *   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.,                                       *
- *   51 Franklin Street, Fifth Floor, Boston, MA 02111-1307 USA.           *
- ***************************************************************************/
-
-#ifndef FIXED_H
-#define FIXED_H
-
-typedef s32 fixed;
-
-//senquack - The gpu_drhell poly routines I adapted use 22.10 fixed point,
-//           while original Unai used 16.16: (see README_senquack.txt)
-//#define FIXED_BITS 16
-#define FIXED_BITS 10
-
-#define fixed_ZERO ((fixed)0)
-#define fixed_ONE  ((fixed)1<<FIXED_BITS)
-#define fixed_TWO  ((fixed)2<<FIXED_BITS)
-#define fixed_HALF ((fixed)((1<<FIXED_BITS)>>1))
-
-#define fixed_LOMASK ((fixed)((1<<FIXED_BITS)-1))
-#define fixed_HIMASK ((fixed)(~fixed_LOMASK))
-
-// int<->fixed conversions:
-#define i2x(x) ((x)<<FIXED_BITS)
-#define x2i(x) ((x)>>FIXED_BITS)
-
-INLINE fixed FixedCeil(const fixed x)
-{
-       return (x + (fixed_ONE - 1)) & fixed_HIMASK;
-}
-
-INLINE s32 FixedCeilToInt(const fixed x)
-{
-       return (x + (fixed_ONE - 1)) >> FIXED_BITS;
-}
-
-//senquack - float<->fixed conversions:
-#define f2x(x) ((s32)((x) * (float)(1<<FIXED_BITS)))
-#define x2f(x) ((float)(x) / (float)(1<<FIXED_BITS))
-
-//senquack - floating point reciprocal:
-//NOTE: These assume x is always != 0 !!!
-#ifdef GPU_UNAI_USE_FLOATMATH
-#if defined(_MIPS_ARCH_MIPS32R2) || (__mips == 64)
-INLINE float FloatInv(const float x)
-{
-       float res;
-       asm("recip.s %0,%1" : "=f" (res) : "f" (x));
-       return res;
-}
-#else
-INLINE float FloatInv(const float x)
-{
-       return (1.0f / x);
-}
-#endif
-#endif
-
-///////////////////////////////////////////////////////////////////////////
-// --- BEGIN INVERSE APPROXIMATION SECTION ---
-///////////////////////////////////////////////////////////////////////////
-#ifdef GPU_UNAI_USE_INT_DIV_MULTINV
-
-//  big precision inverse table.
-#define TABLE_BITS 16
-s32 s_invTable[(1<<TABLE_BITS)];
-
-//senquack - MIPS32 happens to have same instruction/format:
-#if defined(__arm__) || (__mips == 32)
-INLINE u32 Log2(u32 x) { u32 res; asm("clz %0,%1" : "=r" (res) : "r" (x)); return 32-res; }
-#else
-INLINE u32 Log2(u32 x) { u32 i = 0; for ( ; x > 0; ++i, x >>= 1); return i - 1; }
-#endif
-
-INLINE  void  xInv (const fixed _b, s32& iFactor_, s32& iShift_)
-{
-  u32 uD = (_b<0) ? -_b : _b;
-  if(uD>1)
-  {
-       u32 uLog = Log2(uD);
-    uLog = uLog>(TABLE_BITS-1) ? uLog-(TABLE_BITS-1) : 0;
-    u32 uDen = (uD>>uLog);
-    iFactor_ = s_invTable[uDen];
-    iFactor_ = (_b<0) ? -iFactor_ :iFactor_;
-    //senquack - Adapted to 22.10 fixed point (originally 16.16):
-    //iShift_  = 15+uLog;
-    iShift_  = 21+uLog;
-  }
-  else
-  {
-    iFactor_=_b;
-    iShift_ = 0;
-  }
-}
-
-INLINE  fixed xInvMulx  (const fixed _a, const s32 _iFact, const s32 _iShift)
-{
-       #ifdef __arm__
-               s64 res;
-               asm ("smull %Q0, %R0, %1, %2" : "=&r" (res) : "r"(_a) , "r"(_iFact));
-               return fixed(res>>_iShift);
-       #else
-               return fixed( ((s64)(_a)*(s64)(_iFact))>>(_iShift) );
-       #endif
-}
-
-INLINE  fixed xLoDivx   (const fixed _a, const fixed _b)
-{
-  s32 iFact, iShift;
-  xInv(_b, iFact, iShift);
-  return xInvMulx(_a, iFact, iShift);
-}
-#endif // GPU_UNAI_USE_INT_DIV_MULTINV
-///////////////////////////////////////////////////////////////////////////
-// --- END INVERSE APPROXIMATION SECTION ---
-///////////////////////////////////////////////////////////////////////////
-
-#endif  //FIXED_H