project64/Source/GlideHQ/tc-1.1+/internal.h

147 lines
3.8 KiB
C

/*
* Texture compression
* Version: 1.0
*
* Copyright (C) 2004 Daniel Borca All Rights Reserved.
*
* this 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, or (at your option)
* any later version.
*
* this 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 GNU Make; see the file COPYING. If not, write to
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef INTERNAL_H_included
#define INTERNAL_H_included
/*****************************************************************************\
* Texture compression stuff
\*****************************************************************************/
#define RADEON
#define YUV
#define ARGB
/*****************************************************************************\
* DLL stuff
\*****************************************************************************/
#ifdef __WIN32__
#define TAPI __declspec(dllexport)
#define TAPIENTRY /*__stdcall*/
#else
#define TAPI
#define TAPIENTRY
#endif
/*****************************************************************************\
* 64bit types on 32bit machine
\*****************************************************************************/
#if (defined(__GNUC__) && !defined(__cplusplus)) || defined(WIN32)
typedef unsigned long long qword;
#define Q_MOV32(a, b) a = b
#define Q_OR32(a, b) a |= b
#define Q_SHL(a, c) a <<= c
#else /* !__GNUC__ */
typedef struct {
dword lo, hi;
} qword;
#define Q_MOV32(a, b) a.lo = b
#define Q_OR32(a, b) a.lo |= b
#define Q_SHL(a, c) \
do { \
if ((c) >= 32) { \
a.hi = a.lo << ((c) - 32); \
a.lo = 0; \
} else { \
a.hi = (a.hi << (c)) | (a.lo >> (32 - (c)));\
a.lo <<= c; \
} \
} while (0)
#endif /* !__GNUC__ */
/*****************************************************************************\
* Config
\*****************************************************************************/
#define RCOMP 0
#define GCOMP 1
#define BCOMP 2
#define ACOMP 3
/*****************************************************************************\
* Metric
\*****************************************************************************/
#define F(i) (float)1 /* can be used to obtain an oblong metric: 0.30 / 0.59 / 0.11 */
#define SAFECDOT 1 /* for paranoids */
#define MAKEIVEC(NV, NC, IV, B, V0, V1) \
do { \
/* compute interpolation vector */\
float d2 = 0.0F; \
float rd2; \
\
for (i = 0; i < NC; i++) { \
IV[i] = (V1[i] - V0[i]) * F(i);\
d2 += IV[i] * IV[i]; \
} \
rd2 = (float)NV / d2; \
B = 0; \
for (i = 0; i < NC; i++) { \
IV[i] *= F(i); \
B -= IV[i] * V0[i]; \
IV[i] *= rd2; \
} \
B = B * rd2 + 0.5F; \
} while (0)
#define CALCCDOT(TEXEL, NV, NC, IV, B, V)\
do { \
float dot = 0.0F; \
for (i = 0; i < NC; i++) { \
dot += V[i] * IV[i]; \
} \
TEXEL = (int)(dot + B); \
if (SAFECDOT) { \
if (TEXEL < 0) { \
TEXEL = 0; \
} else if (TEXEL > NV) { \
TEXEL = NV; \
} \
} \
} while (0)
/*****************************************************************************\
* Utility functions
\*****************************************************************************/
void
_mesa_upscale_teximage2d (unsigned int inWidth, unsigned int inHeight,
unsigned int outWidth, unsigned int outHeight,
unsigned int comps,
const byte *src, int srcRowStride,
unsigned char *dest);
#endif