181 lines
4.8 KiB
C
181 lines
4.8 KiB
C
/*
|
|
* Copyright (c) 2007 Ivan Leben
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* This library 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
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library in the file COPYING;
|
|
* if not, write to the Free Software Foundation, Inc.,
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*
|
|
*/
|
|
|
|
#ifndef __SHDEFS_H
|
|
#define __SHDEFS_H
|
|
|
|
/* Standard headers */
|
|
|
|
#include "shConfig.h"
|
|
|
|
#ifdef VG_API_WINDOWS
|
|
# include <windows.h>
|
|
#endif
|
|
|
|
#include <stdlib.h>
|
|
#include <assert.h>
|
|
#include <math.h>
|
|
#include <float.h>
|
|
|
|
#if !defined(VG_API_MACOSX) && !defined(__FreeBSD__) && !defined(__OpenBSD__)
|
|
# include <malloc.h>
|
|
#endif
|
|
|
|
/* Disable VGHandle-pointer conversion warnings since we
|
|
do deal with it by defining VGHandle properly */
|
|
|
|
#if defined(_MSC_VER)
|
|
# pragma warning(disable:4311)
|
|
# pragma warning(disable:4312)
|
|
# define ALIGN16 __declspec(align(16))
|
|
# define ALIGN16C
|
|
#elif defined(__GNUC__)
|
|
# define ALIGN16
|
|
# define ALIGN16C __attribute__((aligned(16)))
|
|
#endif
|
|
|
|
/* Type definitions */
|
|
|
|
#if HAVE_INTTYPES_H
|
|
|
|
#include <inttypes.h>
|
|
|
|
#else
|
|
|
|
#define int8_t char
|
|
#define uint8_t unsigned char
|
|
#define int16_t short
|
|
#define uint16_t unsigned short
|
|
#define int32_t int
|
|
#define uint32_t unsigned int
|
|
#define int64_t long long
|
|
#define uint64_t unsigned long long
|
|
|
|
#endif
|
|
|
|
typedef int8_t SHint8;
|
|
typedef uint8_t SHuint8;
|
|
typedef int16_t SHint16;
|
|
typedef uint16_t SHuint16;
|
|
typedef int32_t SHint32;
|
|
typedef uint32_t SHuint32;
|
|
typedef float SHfloat32;
|
|
|
|
#define SHint SHint32
|
|
#define SHuint SHuint32
|
|
#define SHfloat SHfloat32
|
|
|
|
/* Maximum / minimum values */
|
|
|
|
#define SH_MAX_INT (0x7fffffff)
|
|
#define SH_MIN_INT (-0x7fffffff-1)
|
|
|
|
#define SH_MANTISSA_BITS 23
|
|
#define SH_EXPONENT_BITS 8
|
|
|
|
/* all 1s in exponent yields NaN in IEEE 754 so we take
|
|
1 less then maximum representable with exponent bits */
|
|
#define SH_MAX_EXPONENT ((1 << SH_EXPONENT_BITS) - 2)
|
|
/* maximum representable with mantissa bits */
|
|
#define SH_MAX_MANTISSA ((1 << SH_MANTISSA_BITS) - 1)
|
|
/* compose into IEEE754 floating point bit value */
|
|
#define SH_MAX_FLOAT_BITS (SH_MAX_EXPONENT << SH_MANTISSA_BITS) | SH_MAX_MANTISSA
|
|
|
|
typedef union {
|
|
float f;
|
|
unsigned int i;
|
|
} SHfloatint;
|
|
|
|
SHfloat getMaxFloat();
|
|
|
|
/* Portable function definitions */
|
|
|
|
#define SH_SQRT (float)sqrt
|
|
#define SH_COS (float)cos
|
|
#define SH_SIN (float)sin
|
|
#define SH_ACOS (float)acos
|
|
#define SH_ASIN (float)asin
|
|
#define SH_ATAN (float)atan
|
|
#define SH_FLOOR (float)floor
|
|
#define SH_CEIL (float)ceil
|
|
#define SH_ASSERT assert
|
|
|
|
#if defined(__isnan) || (defined(__APPLE__) && (__GNUC__ == 3))
|
|
# define SH_ISNAN __isnan
|
|
#elif defined(_isnan) || defined(WIN32)
|
|
# define SH_ISNAN _isnan
|
|
#else
|
|
# define SH_ISNAN isnan
|
|
#endif
|
|
|
|
|
|
/* Helper macros */
|
|
|
|
#define PI 3.141592654f
|
|
#define SH_DEG2RAD(a) (a * PI / 180.0f)
|
|
#define SH_RAD2DEG(a) (a * 180.0f / PI)
|
|
#define SH_ABS(a) ((a < 0.0f) ? -a : a)
|
|
#define SH_MAX(a,b) ((a > b) ? a : b)
|
|
#define SH_MIN(a,b) ((a < b) ? a : b)
|
|
#define SH_NEARZERO(a) (a >= -0.0001 && a < 0.0001)
|
|
#define SH_SWAP(a,b) {SHfloat t=a; a=b; b=t;}
|
|
#define SH_CLAMP(a,min,max) {if (a<min) a=min; if (a>max) a=max; }
|
|
|
|
#define SH_NEWOBJ(type,obj) { obj = (type*)malloc(sizeof(type)); if(obj) type ## _ctor(obj); }
|
|
#define SH_INITOBJ(type,obj){ type ## _ctor(&obj); }
|
|
#define SH_DEINITOBJ(type,obj) { type ## _dtor(&obj); }
|
|
#define SH_DELETEOBJ(type,obj) { if(obj) type ## _dtor(obj); free(obj); }
|
|
|
|
/* Implementation limits */
|
|
|
|
#define SH_MAX_SCISSOR_RECTS 1
|
|
#define SH_MAX_DASH_COUNT VG_MAXINT
|
|
#define SH_MAX_IMAGE_WIDTH VG_MAXINT
|
|
#define SH_MAX_IMAGE_HEIGHT VG_MAXINT
|
|
#define SH_MAX_IMAGE_PIXELS VG_MAXINT
|
|
#define SH_MAX_IMAGE_BYTES VG_MAXINT
|
|
#define SH_MAX_COLOR_RAMP_STOPS 256
|
|
|
|
#define SH_MAX_VERTICES 999999999
|
|
#define SH_MAX_RECURSE_DEPTH 16
|
|
|
|
#define SH_GRADIENT_TEX_SIZE 1024
|
|
#define SH_GRADIENT_TEX_COORDSIZE 4096 /* 1024 * RGBA */
|
|
|
|
/* OpenGL headers */
|
|
|
|
#if defined(VG_API_LINUX) || defined(VG_API_FREEBSD) || defined(VG_API_OPENBSD)
|
|
#include <GL/gl.h>
|
|
#include <GL/glx.h>
|
|
#elif defined(VG_API_MACOSX)
|
|
#include <OpenGL/gl.h>
|
|
#elif defined(VG_API_WINDOWS)
|
|
#include <GL/gl.h>
|
|
#else
|
|
#define GL_GLEXT_LEGACY /* don't include glext.h */
|
|
#include <GL/gl.h>
|
|
#include <GL/glx.h>
|
|
#endif
|
|
|
|
#include "shExtensions.h"
|
|
|
|
|
|
#endif /* __SHDEFS_H */
|