--- /dev/null
+/**************************************************************************
+ *
+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+#ifndef P_COMPILER_H
+#define P_COMPILER_H
+
+#include <assert.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+
+typedef unsigned int uint;
+typedef unsigned char ubyte;
+typedef unsigned char boolean;
+typedef unsigned short ushort;
+
+
+#define TRUE 1
+#define FALSE 0
+
+/* Function inlining */
+#if defined(__GNUC__)
+# define INLINE __inline__
+#elif defined(__MSC__)
+# define INLINE __inline
+#elif defined(_MSC_VER)
+# define INLINE __inline
+#elif defined(__ICL)
+# define INLINE __inline
+#elif defined(__INTEL_COMPILER)
+# define INLINE inline
+#elif defined(__WATCOMC__) && (__WATCOMC__ >= 1100)
+# define INLINE __inline
+#else
+# define INLINE
+#endif
+
+
+#endif /* P_COMPILER_H */
--- /dev/null
+
+/*
+ * Mesa 3-D graphics library
+ * Version: 6.5.2
+ *
+ * Copyright (C) 1999-2006 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+#ifndef P_UTIL_H
+#define P_UTIL_H
+
+#include "p_compiler.h"
+
+#define CALLOC_STRUCT(T) (struct T *) calloc(1, sizeof(struct T))
+
+
+
+/** Clamp X to [MIN,MAX] */
+#define CLAMP( X, MIN, MAX ) ( (X)<(MIN) ? (MIN) : ((X)>(MAX) ? (MAX) : (X)) )
+
+/** Assign X to CLAMP(X, MIN, MAX) */
+#define CLAMP_SELF(x, mn, mx) \
+ ( (x)<(mn) ? ((x) = (mn)) : ((x)>(mx) ? ((x)=(mx)) : (x)) )
+
+/** Minimum of two values: */
+#define MIN2( A, B ) ( (A)<(B) ? (A) : (B) )
+
+/** Maximum of two values: */
+#define MAX2( A, B ) ( (A)>(B) ? (A) : (B) )
+
+
+#define Elements(x) sizeof(x)/sizeof(*(x))
+
+union fi {
+ float f;
+ int i;
+ unsigned ui;
+};
+
+#define UBYTE_TO_FLOAT( ub ) ((float)(ub) / 255.0F)
+
+#define IEEE_0996 0x3f7f0000 /* 0.996 or so */
+
+/* This function/macro is sensitive to precision. Test very carefully
+ * if you change it!
+ */
+#define UNCLAMPED_FLOAT_TO_UBYTE(UB, F) \
+ do { \
+ union fi __tmp; \
+ __tmp.f = (F); \
+ if (__tmp.i < 0) \
+ UB = (ubyte) 0; \
+ else if (__tmp.i >= IEEE_0996) \
+ UB = (ubyte) 255; \
+ else { \
+ __tmp.f = __tmp.f * (255.0F/256.0F) + 32768.0F; \
+ UB = (ubyte) __tmp.i; \
+ } \
+ } while (0)
+
+
+
+static INLINE unsigned pack_ub4( unsigned char b0,
+ unsigned char b1,
+ unsigned char b2,
+ unsigned char b3 )
+{
+ return ((((unsigned int)b0) << 0) |
+ (((unsigned int)b1) << 8) |
+ (((unsigned int)b2) << 16) |
+ (((unsigned int)b3) << 24));
+}
+
+static INLINE unsigned fui( float f )
+{
+ union fi fi;
+ fi.f = f;
+ return fi.ui;
+}
+
+static INLINE unsigned char float_to_ubyte( float f )
+{
+ unsigned char ub;
+ UNCLAMPED_FLOAT_TO_UBYTE(ub, f);
+ return ub;
+}
+
+static INLINE unsigned pack_ui32_float4( float a,
+ float b,
+ float d,
+ float c )
+{
+ return pack_ub4( float_to_ubyte(a),
+ float_to_ubyte(b),
+ float_to_ubyte(c),
+ float_to_ubyte(d) );
+}
+
+#endif
projects / mesa.git / commitdiff