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859 lines
27 KiB
859 lines
27 KiB
///////////////////////////////////////////////////////////////////////////////
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// Copyright (C) Microsoft Corporation, 1998.
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//
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// rrutil.hpp
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//
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// Direct3D Reference Rasterizer - Utilities
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//
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///////////////////////////////////////////////////////////////////////////////
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#ifndef _RRUTIL_HPP
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#define _RRUTIL_HPP
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#include <math.h>
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#ifndef FASTCALL
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#ifdef _X86_
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#define FASTCALL __fastcall
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#else
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#define FASTCALL
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#endif
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#endif
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#ifndef CDECL
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#ifdef _X86_
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#define CDECL __cdecl
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#else
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#define CDECL
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#endif
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#endif
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///////////////////////////////////////////////////////////////////////////////
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// //
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// Globals //
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// //
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///////////////////////////////////////////////////////////////////////////////
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// memory allocation callbacks
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extern LPVOID (__cdecl *g_pfnMemAlloc)( size_t size );
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extern void (__cdecl *g_pfnMemFree)( LPVOID lptr );
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extern LPVOID (__cdecl *g_pfnMemReAlloc)( LPVOID ptr, size_t size );
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// debug print controls
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extern int g_iDPFLevel;
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extern unsigned long g_uDPFMask;
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///////////////////////////////////////////////////////////////////////////////
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// //
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// Typedefs //
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// //
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///////////////////////////////////////////////////////////////////////////////
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#ifndef DllExport
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#define DllExport __declspec( dllexport )
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#endif
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// width-specific typedefs for basic types
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#ifndef _BASETSD_H_
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typedef signed char INT8, *PINT8;
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typedef short int INT16, *PINT16;
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typedef int INT32, *PINT32;
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typedef __int64 INT64, *PINT64;
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typedef unsigned char UINT8, *PUINT8;
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typedef unsigned short int UINT16, *PUINT16;
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typedef unsigned int UINT32, *PUINT32;
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typedef unsigned __int64 UINT64, *PUINT64;
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#endif
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typedef float FLOAT, *PFLOAT;
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typedef double DOUBLE, *PDOUBLE;
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typedef int BOOL;
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typedef struct _RRVECTOR4
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{
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D3DVALUE x;
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D3DVALUE y;
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D3DVALUE z;
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D3DVALUE w;
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} RRVECTOR4, *LPRRVECTOR4;
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//-----------------------------------------------------------------------------
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//
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// Private FVF flags for texgen.
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//
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//-----------------------------------------------------------------------------
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#define D3DFVFP_EYENORMAL ((UINT64)1<<32)
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#define D3DFVFP_EYEXYZ ((UINT64)1<<33)
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///////////////////////////////////////////////////////////////////////////////
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// //
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// Macros //
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// //
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///////////////////////////////////////////////////////////////////////////////
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#ifndef TRUE
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#define TRUE 1
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#endif
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#ifndef FALSE
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#define FALSE 0
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#endif
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#ifndef NULL
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#define NULL 0
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#endif
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#define MAX(a,b) (((a) > (b)) ? (a) : (b))
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#define MIN(a,b) (((a) < (b)) ? (a) : (b))
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#define ABS(a) (((a) < 0) ? (-(a)) : (a))
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// Check the return value and return if something wrong.
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// Assume hr has been declared
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#define HR_RET(exp) \
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{ \
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hr = (exp); \
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if (hr != D3D_OK) \
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{ \
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return hr; \
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} \
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}
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//-----------------------------------------------------------------------------
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//
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// macros for accessing floating point data as 32 bit integers and vice versa
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//
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// This is used primarily to do floating point to fixed point conversion with
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// the unbiased nearest-even rounding that IEEE floating point does internally
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// between operations. Adding a big number slides the mantissa down to where
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// the fixed point equivalent is aligned to the LSB. IEEE applies a nearest-
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// even round to the bits it lops off before storing. The mantissa can then
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// be grabbed by the AS_INT* operations. Note that the sign and exponent are
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// still there, so the easiest thing is to do it with doubles and grab the low
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// 32 bits.
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//
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// The snap values (i.e. the "big number") is the sum of 2**n and 2**(n-1),
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// which makes the trick return signed numbers (at least within the mantissa).
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//
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//-----------------------------------------------------------------------------
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#if 0
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// NOTE: vc5 optimizing compiler bug breaks this pointer casting technique
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#define AS_FLOAT(i) ( *(FLOAT*)&(i) )
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#define AS_INT32(f) ( *(INT32*)&(f) )
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#define AS_INT16(f) ( *(INT16*)&(f) )
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#define AS_UINT32(f) ( *(UINT32*)&(f) )
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#else
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// workaround using union
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typedef union { float f; UINT32 u; INT32 i; } VAL32;
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typedef union { double d; UINT64 u; INT64 i; } VAL64;
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inline FLOAT AS_FLOAT( long int iVal ) { VAL32 v; v.i = iVal; return v.f; }
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inline FLOAT AS_FLOAT( unsigned long int uVal ) { VAL32 v; v.u = uVal; return v.f; }
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inline INT32 AS_INT32( FLOAT fVal ) { VAL32 v; v.f = fVal; return v.i; }
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inline INT32 AS_INT32( DOUBLE dVal ) { VAL64 v; v.d = dVal; return (INT32)(v.u & 0xffffffff); }
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inline INT16 AS_INT16( FLOAT fVal ) { VAL32 v; v.f = fVal; return (INT16)(v.u & 0xffff); }
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inline INT16 AS_INT16( DOUBLE dVal ) { VAL64 v; v.d = dVal; return (INT16)(v.u & 0xffff); }
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inline INT32 AS_UINT32( FLOAT fVal ) { VAL32 v; v.f = fVal; return v.u; }
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#endif
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//-----------------------------------------------------------------------------
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//
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// Some common FP values as constants
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// point values
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//
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//-----------------------------------------------------------------------------
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#define g_fZero (0.0f)
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#define g_fOne (1.0f)
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// Integer representation of 1.0f.
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#define INT32_FLOAT_ONE 0x3f800000
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//-----------------------------------------------------------------------------
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//
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// these are handy to form 'magic' constants to snap real values to fixed
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// point values
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//
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//-----------------------------------------------------------------------------
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#define C2POW0 1
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#define C2POW1 2
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#define C2POW2 4
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#define C2POW3 8
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#define C2POW4 16
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#define C2POW5 32
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#define C2POW6 64
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#define C2POW7 128
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#define C2POW8 256
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#define C2POW9 512
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#define C2POW10 1024
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#define C2POW11 2048
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#define C2POW12 4096
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#define C2POW13 8192
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#define C2POW14 16384
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#define C2POW15 32768
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#define C2POW16 65536
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#define C2POW17 131072
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#define C2POW18 262144
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#define C2POW19 524288
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#define C2POW20 1048576
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#define C2POW21 2097152
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#define C2POW22 4194304
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#define C2POW23 8388608
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#define C2POW24 16777216
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#define C2POW25 33554432
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#define C2POW26 67108864
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#define C2POW27 134217728
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#define C2POW28 268435456
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#define C2POW29 536870912
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#define C2POW30 1073741824
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#define C2POW31 2147483648
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#define C2POW32 4294967296
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#define C2POW33 8589934592
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#define C2POW34 17179869184
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#define C2POW35 34359738368
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#define C2POW36 68719476736
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#define C2POW37 137438953472
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#define C2POW38 274877906944
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#define C2POW39 549755813888
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#define C2POW40 1099511627776
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#define C2POW41 2199023255552
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#define C2POW42 4398046511104
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#define C2POW43 8796093022208
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#define C2POW44 17592186044416
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#define C2POW45 35184372088832
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#define C2POW46 70368744177664
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#define C2POW47 140737488355328
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#define C2POW48 281474976710656
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#define C2POW49 562949953421312
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#define C2POW50 1125899906842624
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#define C2POW51 2251799813685248
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#define C2POW52 4503599627370496
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#define FLOAT_0_SNAP (FLOAT)(C2POW23+C2POW22)
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#define FLOAT_4_SNAP (FLOAT)(C2POW19+C2POW18)
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#define FLOAT_5_SNAP (FLOAT)(C2POW18+C2POW17)
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#define FLOAT_8_SNAP (FLOAT)(C2POW15+C2POW14)
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#define FLOAT_17_SNAP (FLOAT)(C2POW6 +C2POW5 )
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#define FLOAT_18_SNAP (FLOAT)(C2POW5 +C2POW4 )
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#define DOUBLE_0_SNAP (DOUBLE)(C2POW52+C2POW51)
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#define DOUBLE_4_SNAP (DOUBLE)(C2POW48+C2POW47)
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#define DOUBLE_5_SNAP (DOUBLE)(C2POW47+C2POW46)
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#define DOUBLE_8_SNAP (DOUBLE)(C2POW44+C2POW43)
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#define DOUBLE_17_SNAP (DOUBLE)(C2POW35+C2POW34)
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#define DOUBLE_18_SNAP (DOUBLE)(C2POW34+C2POW33)
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//-----------------------------------------------------------------------------
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//
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// Floating point related macros
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//
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//-----------------------------------------------------------------------------
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#define COSF(fV) ((FLOAT)cos((double)(fV)))
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#define SINF(fV) ((FLOAT)sin((double)(fV)))
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#define SQRTF(fV) ((FLOAT)sqrt((double)(fV)))
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#define POWF(fV, fE) ((FLOAT)pow((double)(fV), (double)(fE)))
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#ifdef _X86_
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#define FLOAT_CMP_POS(fa, op, fb) (AS_INT32(fa) op AS_INT32(fb))
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#define FLOAT_CMP_PONE(flt, op) (AS_INT32(flt) op INT32_FLOAT_ONE)
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__inline int FLOAT_GTZ(FLOAT f)
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{
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VAL32 fi;
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fi.f = f;
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return fi.i > 0;
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}
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__inline int FLOAT_LTZ(FLOAT f)
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{
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VAL32 fi;
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fi.f = f;
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return fi.u > 0x80000000;
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}
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__inline int FLOAT_GEZ(FLOAT f)
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{
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VAL32 fi;
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fi.f = f;
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return fi.u <= 0x80000000;
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}
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__inline int FLOAT_LEZ(FLOAT f)
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{
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VAL32 fi;
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fi.f = f;
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return fi.i <= 0;
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}
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__inline int FLOAT_EQZ(FLOAT f)
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{
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VAL32 fi;
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fi.f = f;
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return (fi.u & 0x7fffffff) == 0;
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}
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__inline int FLOAT_NEZ(FLOAT f)
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{
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VAL32 fi;
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fi.f = f;
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return (fi.u & 0x7fffffff) != 0;
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}
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// Strip sign bit in integer.
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__inline FLOAT
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ABSF(FLOAT f)
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{
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VAL32 fi;
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fi.f = f;
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fi.u &= 0x7fffffff;
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return fi.f;
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}
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// Requires chop rounding.
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__inline INT
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FTOI(FLOAT f)
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{
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LARGE_INTEGER i;
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__asm
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{
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fld f
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fistp i
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}
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return i.LowPart;
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}
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#else
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#define FLOAT_GTZ(flt) ((flt) > g_fZero)
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#define FLOAT_LTZ(flt) ((flt) < g_fZero)
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#define FLOAT_GEZ(flt) ((flt) >= g_fZero)
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#define FLOAT_LEZ(flt) ((flt) <= g_fZero)
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#define FLOAT_EQZ(flt) ((flt) == g_fZero)
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#define FLOAT_NEZ(flt) ((flt) != g_fZero)
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#define FLOAT_CMP_POS(fa, op, fb) ((fa) op (fb))
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#define FLOAT_CMP_PONE(flt, op) ((flt) op g_fOne)
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#define ABSF(f) ((FLOAT)fabs((double)(f)))
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#define FTOI(f) ((INT)(f))
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#endif // _X86_
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//-----------------------------------------------------------------------------
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//
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// macro wrappers for memory allocation - wrapped around global function ptrs
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// set by RefRastSetMemif
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//
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//-----------------------------------------------------------------------------
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#define MEMALLOC(_size) ((*g_pfnMemAlloc)(_size))
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#define MEMFREE(_ptr) { if (NULL != (_ptr)) { ((*g_pfnMemFree)(_ptr)); } }
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#define MEMREALLOC(_ptr,_size) ((*g_pfnMemReAlloc)((_ptr),(_size)))
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//////////////////////////////////////////////////////////////////////////////////
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// //
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// Utility Functions //
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// //
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//////////////////////////////////////////////////////////////////////////////////
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//-----------------------------------------------------------------------------
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//
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// debug printf support
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//
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//-----------------------------------------------------------------------------
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void RRDebugPrintfL( int iLevel, const char* pszFormat, ... );
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void RRDebugPrintf( const char* pszFormat, ... );
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#define _DPF_IF 0x0001
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#define _DPF_INPUT 0x0002
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#define _DPF_SETUP 0x0004
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#define _DPF_RAST 0x0008
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#define _DPF_TEX 0x0010
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#define _DPF_PIX 0x0020
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#define _DPF_FRAG 0x0040
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#define _DPF_STATS 0x0080
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#define _DPF_DRV 0x0100
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#define _DPF_TNL 0x0200
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#define _DPF_ANY 0xffff
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#define _DPF_TEMP 0x8000
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#ifdef DBG
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#define DPFRR RRDebugPrintfL
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#define DPFM( _level, _mask, _message) \
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if ((g_iDPFLevel >= (_level)) && (g_uDPFMask & (_DPF_##_mask))) { \
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RRDebugPrintf ## _message; \
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}
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#else
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#pragma warning(disable:4002)
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#define DPFRR()
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#define DPFM( _level, _mask, _message)
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#endif
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//-----------------------------------------------------------------------------
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//
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// assert macros and reporting functions
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//
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//-----------------------------------------------------------------------------
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// ASSERT with simple string
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#undef _ASSERT
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#define _ASSERT( value, string ) \
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if ( !(value) ) { \
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RRAssertReport( string, __FILE__, __LINE__ ); \
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}
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// ASSERT with formatted string - note extra parenthesis on report
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// usage: _ASSERTf(foo,("foo is %d",foo))
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#undef _ASSERTf
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#define _ASSERTf(value,report) \
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if (!(value)) { \
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char __sz__FILE__[] = __FILE__; \
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RRAssertReportPrefix(__sz__FILE__,__LINE__); \
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RRAssertReportMessage ## report; \
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}
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// ASSERT with action field
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#undef _ASSERTa
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#define _ASSERTa(value,string,action) \
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if (!(value)) { \
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RRAssertReport(string,__FILE__,__LINE__); \
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action \
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}
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// ASSERTf with action field
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#undef _ASSERTfa
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#define _ASSERTfa(value,report,action) \
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if (!(value)) { \
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RRAssertReportPrefix(__FILE__,__LINE__); \
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RRAssertReportMessage ## report; \
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action \
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}
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extern void RRAssertReport( const char* pszString, const char* pszFile, int iLine );
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extern void RRAssertReportPrefix( const char* pszFile, int iLine );
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extern void RRAssertReportMessage( const char* pszFormat, ... );
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//-----------------------------------------------------------------------------
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//
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// bit twiddling utilities
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//
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//-----------------------------------------------------------------------------
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extern INT32 CountSetBits( UINT32 uVal, INT32 nBits );
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extern INT32 FindFirstSetBit( UINT32 uVal, INT32 nBits );
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extern INT32 FindMostSignificantSetBit( UINT32 uVal, INT32 nBits );
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extern INT32 FindLastSetBit( UINT32 uVal, INT32 nBits );
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// TRUE if integer is a power of 2
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inline BOOL IsPowerOf2( INT32 i )
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{
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if ( i <= 0 ) return 0;
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return ( 0x0 == ( i & (i-1) ) );
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}
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//-----------------------------------------------------------------------------
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//
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// multiply/add routines & macros for unsigned 8 bit values, signed 16 bit values
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//
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// These are not currently used, but the Mult8x8Scl is an interesting routine
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// for hardware designers to look at. This does a 8x8 multiply combined with
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// a 256/255 scale which accurately solves the "0xff * value = value" issue.
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// There are refinements on this (involving half-adders) which are not easily
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// representable in C. Credits to Steve Gabriel and Jim Blinn.
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//
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//-----------------------------------------------------------------------------
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// straight 8x8 unsigned multiply returning 8 bits, tossing fractional
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// bits (no rounding)
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inline UINT8 Mult8x8( const UINT8 uA, const UINT8 uB )
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{
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UINT16 uA16 = (UINT16)uA;
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UINT16 uB16 = (UINT16)uB;
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UINT16 uRes16 = uA16*uB16;
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UINT8 uRes8 = (UINT8)(uRes16>>8);
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return uRes8;
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}
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// 8x8 unsigned multiply with ff*val = val scale adjustment (scale by (256/255))
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inline UINT8 Mult8x8Scl( const UINT8 uA, const UINT8 uB )
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{
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UINT16 uA16 = (UINT16)uA;
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UINT16 uB16 = (UINT16)uB;
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UINT16 uRes16 = uA16*uB16;
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uRes16 += 0x0080;
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uRes16 += (uRes16>>8);
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UINT8 uRes8 = (UINT8)(uRes16>>8);
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return uRes8;
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}
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// 8x8 saturated addition - result > 0xff returns 0xff
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inline UINT8 SatAdd8x8( const UINT8 uA, const UINT8 uB )
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{
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UINT16 uA16 = (UINT16)uA;
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UINT16 uB16 = (UINT16)uB;
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UINT16 uRes16 = uA16+uB16;
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UINT8 uRes8 = (uRes16 > 0xff) ? (0xff) : ((UINT8)uRes16);
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return uRes8;
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}
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//----------------------------------------------------------------------------
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//
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// IntLog2
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//
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// Do a quick, integer log2 for exact powers of 2.
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//
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//----------------------------------------------------------------------------
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inline UINT32 FASTCALL
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|
IntLog2(UINT32 x)
|
|
{
|
|
UINT32 y = 0;
|
|
|
|
x >>= 1;
|
|
while(x != 0)
|
|
{
|
|
x >>= 1;
|
|
y++;
|
|
}
|
|
|
|
return y;
|
|
}
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
// FVF related macros
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
#define FVF_TRANSFORMED(dwFVF) ((dwFVF & D3DFVF_POSITION_MASK) == D3DFVF_XYZRHW)
|
|
#define FVF_TEXCOORD_NUMBER(dwFVF) \
|
|
(((dwFVF) & D3DFVF_TEXCOUNT_MASK) >> D3DFVF_TEXCOUNT_SHIFT)
|
|
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
// State Override Macros
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
#define IS_OVERRIDE(type) ((DWORD)(type) > D3DSTATE_OVERRIDE_BIAS)
|
|
#define GET_OVERRIDE(type) ((DWORD)(type) - D3DSTATE_OVERRIDE_BIAS)
|
|
|
|
#define STATESET_MASK(set, state) \
|
|
(set).bits[((state) - 1) >> RRSTATEOVERRIDE_DWORD_SHIFT]
|
|
|
|
#define STATESET_BIT(state) (1 << (((state) - 1) & (RRSTATEOVERRIDE_DWORD_BITS - 1)))
|
|
|
|
#define STATESET_ISSET(set, state) \
|
|
STATESET_MASK(set, state) & STATESET_BIT(state)
|
|
|
|
#define STATESET_SET(set, state) \
|
|
STATESET_MASK(set, state) |= STATESET_BIT(state)
|
|
|
|
#define STATESET_CLEAR(set, state) \
|
|
STATESET_MASK(set, state) &= ~STATESET_BIT(state)
|
|
|
|
#define STATESET_INIT(set) memset(&(set), 0, sizeof(set))
|
|
|
|
//---------------------------------------------------------------------
|
|
// GetFVFVertexSize:
|
|
// Computes total vertex size in bytes for given fvf
|
|
// including the texture coordinates
|
|
//---------------------------------------------------------------------
|
|
__inline DWORD
|
|
GetFVFVertexSize( UINT64 qwFVF )
|
|
{
|
|
// Texture formats size 00 01 10 11
|
|
static DWORD dwTextureSize[4] = {2*4, 3*4, 4*4, 4};
|
|
|
|
DWORD dwSize = 3 << 2;
|
|
switch( qwFVF & D3DFVF_POSITION_MASK )
|
|
{
|
|
case D3DFVF_XYZRHW: dwSize += 4; break;
|
|
case D3DFVF_XYZB1: dwSize += 1*4; break;
|
|
case D3DFVF_XYZB2: dwSize += 2*4; break;
|
|
case D3DFVF_XYZB3: dwSize += 3*4; break;
|
|
case D3DFVF_XYZB4: dwSize += 4*4; break;
|
|
case D3DFVF_XYZB5: dwSize += 5*4; break;
|
|
}
|
|
if (qwFVF & D3DFVF_NORMAL)
|
|
dwSize += 3*4;
|
|
if (qwFVF & D3DFVF_RESERVED1)
|
|
dwSize += 4;
|
|
|
|
if (qwFVF & D3DFVF_DIFFUSE)
|
|
dwSize += 4;
|
|
if (qwFVF & D3DFVF_SPECULAR)
|
|
dwSize += 4;
|
|
|
|
// Texture coordinates
|
|
DWORD dwNumTexCoord = (DWORD)(FVF_TEXCOORD_NUMBER(qwFVF));
|
|
DWORD dwTextureFormats = (DWORD)qwFVF >> 16;
|
|
if (dwTextureFormats == 0)
|
|
{
|
|
dwSize += dwNumTexCoord * 2 * 4;
|
|
}
|
|
else
|
|
{
|
|
for (DWORD i=0; i < dwNumTexCoord; i++)
|
|
{
|
|
dwSize += dwTextureSize[dwTextureFormats & 3];
|
|
dwTextureFormats >>= 2;
|
|
}
|
|
}
|
|
|
|
if (qwFVF & D3DFVF_S)
|
|
dwSize += 4;
|
|
|
|
if (qwFVF & D3DFVFP_EYENORMAL)
|
|
dwSize += 3*4;
|
|
|
|
if (qwFVF & D3DFVFP_EYEXYZ)
|
|
dwSize += 3*4;
|
|
|
|
return dwSize;
|
|
}
|
|
|
|
HRESULT
|
|
RRFVFCheckAndStride( DWORD dwFVF, DWORD* pdwStride );
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
// Matrix and Vector routines
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
|
|
inline void
|
|
ReverseVector(const D3DVECTOR &in, D3DVECTOR &out)
|
|
{
|
|
out.x = -in.x;
|
|
out.y = -in.y;
|
|
out.z = -in.z;
|
|
}
|
|
|
|
inline void
|
|
AddVector(const D3DVECTOR &v1, const D3DVECTOR &v2, D3DVECTOR &out)
|
|
{
|
|
out.x = v1.x + v2.x;
|
|
out.y = v1.y + v2.y;
|
|
out.z = v1.z + v2.z;
|
|
}
|
|
|
|
inline void
|
|
SubtractVector(const D3DVECTOR &v1, const D3DVECTOR &v2, D3DVECTOR &out)
|
|
{
|
|
out.x = v1.x - v2.x;
|
|
out.y = v1.y - v2.y;
|
|
out.z = v1.z - v2.z;
|
|
}
|
|
|
|
inline void
|
|
SetIdentity(D3DMATRIX &m)
|
|
{
|
|
m._11 = m._22 = m._33 = m._44 = 1.0f;
|
|
m._12 = m._13 = m._14 = 0.0f;
|
|
m._21 = m._23 = m._24 = 0.0f;
|
|
m._31 = m._32 = m._34 = 0.0f;
|
|
m._41 = m._42 = m._43 = 0.0f;
|
|
}
|
|
|
|
|
|
inline void
|
|
SetNull(D3DMATRIX &m)
|
|
{
|
|
m._11 = m._22 = m._33 = m._44 = 0.0f;
|
|
m._12 = m._13 = m._14 = 0.0f;
|
|
m._21 = m._23 = m._24 = 0.0f;
|
|
m._31 = m._32 = m._34 = 0.0f;
|
|
m._41 = m._42 = m._43 = 0.0f;
|
|
}
|
|
|
|
|
|
inline void
|
|
CopyMatrix(D3DMATRIX &s, D3DMATRIX &d)
|
|
{
|
|
d._11 = s._11;
|
|
d._12 = s._12;
|
|
d._13 = s._13;
|
|
d._14 = s._14;
|
|
d._21 = s._21;
|
|
d._22 = s._22;
|
|
d._23 = s._23;
|
|
d._24 = s._24;
|
|
d._31 = s._31;
|
|
d._32 = s._32;
|
|
d._33 = s._33;
|
|
d._34 = s._34;
|
|
d._41 = s._41;
|
|
d._42 = s._42;
|
|
d._43 = s._43;
|
|
d._44 = s._44;
|
|
}
|
|
|
|
inline D3DVALUE
|
|
SquareMagnitude (const D3DVECTOR& v)
|
|
{
|
|
return v.x*v.x + v.y*v.y + v.z*v.z;
|
|
}
|
|
|
|
|
|
inline D3DVALUE
|
|
Magnitude (const D3DVECTOR& v)
|
|
{
|
|
return (D3DVALUE) sqrt(SquareMagnitude(v));
|
|
}
|
|
|
|
inline D3DVECTOR
|
|
Normalize (const D3DVECTOR& v)
|
|
{
|
|
D3DVECTOR nv = {0.0f, 0.0f, 0.0f};
|
|
D3DVALUE mag = Magnitude(v);
|
|
|
|
nv.x = v.x/mag;
|
|
nv.y = v.y/mag;
|
|
nv.z = v.z/mag;
|
|
|
|
return nv;
|
|
}
|
|
|
|
inline void
|
|
Normalize (D3DVECTOR& v)
|
|
{
|
|
D3DVALUE mag = Magnitude(v);
|
|
|
|
v.x = v.x/mag;
|
|
v.y = v.y/mag;
|
|
v.z = v.z/mag;
|
|
|
|
return;
|
|
}
|
|
|
|
inline D3DVECTOR
|
|
CrossProduct (const D3DVECTOR& v1, const D3DVECTOR& v2)
|
|
{
|
|
D3DVECTOR result;
|
|
|
|
result.x = v1.y*v2.z - v1.z*v2.y;
|
|
result.y = v1.z*v2.x - v1.x*v2.z;
|
|
result.z = v1.x*v2.y - v1.y*v2.x;
|
|
|
|
return result;
|
|
}
|
|
|
|
inline D3DVALUE
|
|
DotProduct (const D3DVECTOR& v1, const D3DVECTOR& v2)
|
|
{
|
|
return v1.x*v2.x + v1.y*v2.y + v1.z*v2.z;
|
|
}
|
|
|
|
//---------------------------------------------------------------------
|
|
// Multiplies vector (x,y,z,w) by a 4x4 matrix transposed,
|
|
// producing a homogeneous vector
|
|
//
|
|
// res and v should not be the same
|
|
//---------------------------------------------------------------------
|
|
inline void
|
|
XformPlaneBy4x4Transposed(RRVECTOR4 *v, D3DMATRIX *m, RRVECTOR4 *res)
|
|
{
|
|
res->x = v->x*m->_11 + v->y*m->_12 + v->z*m->_13 + v->w*m->_14;
|
|
res->y = v->x*m->_21 + v->y*m->_22 + v->z*m->_23 + v->w*m->_24;
|
|
res->z = v->x*m->_31 + v->y*m->_32 + v->z*m->_33 + v->w*m->_34;
|
|
res->w = v->x*m->_41 + v->y*m->_42 + v->z*m->_43 + v->w*m->_44;
|
|
}
|
|
//---------------------------------------------------------------------
|
|
// Multiplies vector (x,y,z,w) by 4x4 matrix, producing a homogeneous vector
|
|
//
|
|
// res and v should not be the same
|
|
//---------------------------------------------------------------------
|
|
inline void
|
|
XformPlaneBy4x4(RRVECTOR4 *v, D3DMATRIX *m, RRVECTOR4 *res)
|
|
{
|
|
res->x = v->x*m->_11 + v->y*m->_21 + v->z*m->_31 + v->w*m->_41;
|
|
res->y = v->x*m->_12 + v->y*m->_22 + v->z*m->_32 + v->w*m->_42;
|
|
res->z = v->x*m->_13 + v->y*m->_23 + v->z*m->_33 + v->w*m->_43;
|
|
res->w = v->x*m->_14 + v->y*m->_24 + v->z*m->_34 + v->w*m->_44;
|
|
}
|
|
//---------------------------------------------------------------------
|
|
// Multiplies vector (x,y,z,1) by 4x4 matrix, producing a homogeneous vector
|
|
//
|
|
// res and v should not be the same
|
|
//---------------------------------------------------------------------
|
|
inline void
|
|
XformBy4x4(D3DVECTOR *v, D3DMATRIX *m, RRVECTOR4 *res)
|
|
{
|
|
res->x = v->x*m->_11 + v->y*m->_21 + v->z*m->_31 + m->_41;
|
|
res->y = v->x*m->_12 + v->y*m->_22 + v->z*m->_32 + m->_42;
|
|
res->z = v->x*m->_13 + v->y*m->_23 + v->z*m->_33 + m->_43;
|
|
res->w = v->x*m->_14 + v->y*m->_24 + v->z*m->_34 + m->_44;
|
|
}
|
|
//---------------------------------------------------------------------
|
|
// Multiplies vector (x,y,z,1) by 4x3 matrix
|
|
//
|
|
// res and v should not be the same
|
|
//---------------------------------------------------------------------
|
|
inline void
|
|
XformBy4x3(D3DVECTOR *v, D3DMATRIX *m, D3DVECTOR *res)
|
|
{
|
|
res->x = v->x*m->_11 + v->y*m->_21 + v->z*m->_31 + m->_41;
|
|
res->y = v->x*m->_12 + v->y*m->_22 + v->z*m->_32 + m->_42;
|
|
res->z = v->x*m->_13 + v->y*m->_23 + v->z*m->_33 + m->_43;
|
|
}
|
|
//---------------------------------------------------------------------
|
|
// Multiplies vector (x,y,z) by 3x3 matrix
|
|
//
|
|
// res and v should not be the same
|
|
//---------------------------------------------------------------------
|
|
inline void
|
|
Xform3VecBy3x3(D3DVECTOR *v, D3DMATRIX *m, D3DVECTOR *res)
|
|
{
|
|
res->x = v->x*m->_11 + v->y*m->_21 + v->z*m->_31;
|
|
res->y = v->x*m->_12 + v->y*m->_22 + v->z*m->_32;
|
|
res->z = v->x*m->_13 + v->y*m->_23 + v->z*m->_33;
|
|
}
|
|
|
|
//---------------------------------------------------------------------
|
|
// This function uses Cramer's Rule to calculate the matrix inverse.
|
|
// See nt\private\windows\opengl\serever\soft\so_math.c
|
|
//
|
|
// Returns:
|
|
// 0 - if success
|
|
// -1 - if input matrix is singular
|
|
//---------------------------------------------------------------------
|
|
int Inverse4x4(D3DMATRIX *src, D3DMATRIX *inverse);
|
|
|
|
|
|
////////////////////////////////////////////////////////////////////////
|
|
//
|
|
// Macros used to access DDRAW surface info.
|
|
//
|
|
////////////////////////////////////////////////////////////////////////
|
|
#define DDSurf_Width(lpLcl) ( (lpLcl)->lpGbl->wWidth )
|
|
#define DDSurf_Pitch(lpLcl) ( (lpLcl)->lpGbl->lPitch )
|
|
#define DDSurf_Height(lpLcl) ( (lpLcl)->lpGbl->wHeight )
|
|
#define DDSurf_BitDepth(lpLcl) \
|
|
( (lpLcl->dwFlags & DDRAWISURF_HASPIXELFORMAT) ? \
|
|
(lpLcl->lpGbl->ddpfSurface.dwRGBBitCount) : \
|
|
(lpLcl->lpGbl->lpDD->vmiData.ddpfDisplay.dwRGBBitCount) \
|
|
)
|
|
#define DDSurf_PixFmt(lpLcl) \
|
|
( ((lpLcl)->dwFlags & DDRAWISURF_HASPIXELFORMAT) ? \
|
|
((lpLcl)->lpGbl->ddpfSurface) : \
|
|
((lpLcl)->lpGbl->lpDD->vmiData.ddpfDisplay) \
|
|
)
|
|
#define VIDEO_MEMORY(pDDSLcl) \
|
|
(!((pDDSLcl)->lpGbl->dwGlobalFlags & DDRAWISURFGBL_SYSMEMREQUESTED))
|
|
#define SURFACE_LOCKED(pDDSLcl) \
|
|
((pDDSLcl)->lpGbl->dwUsageCount > 0)
|
|
#define SURFACE_MEMORY(surfLcl) \
|
|
(LPVOID)((surfLcl)->lpGbl->fpVidMem)
|
|
|
|
//---------------------------------------------------------------------
|
|
// DDraw extern functions
|
|
//---------------------------------------------------------------------
|
|
extern "C" HRESULT WINAPI
|
|
DDInternalLock( LPDDRAWI_DDRAWSURFACE_LCL this_lcl, LPVOID* lpBits );
|
|
extern "C" HRESULT WINAPI
|
|
DDInternalUnlock( LPDDRAWI_DDRAWSURFACE_LCL this_lcl );
|
|
|
|
extern "C" HRESULT WINAPI DDGetAttachedSurfaceLcl(
|
|
LPDDRAWI_DDRAWSURFACE_LCL this_lcl,
|
|
LPDDSCAPS2 lpDDSCaps,
|
|
LPDDRAWI_DDRAWSURFACE_LCL *lplpDDAttachedSurfaceLcl);
|
|
extern "C" LPDDRAWI_DDRAWSURFACE_LCL WINAPI
|
|
GetDDSurfaceLocal( LPDDRAWI_DIRECTDRAW_LCL this_lcl, DWORD handle, BOOL* isnew );
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
#endif // _RRUTIL_HPP
|