OgrePlatformInformation.h
Go to the documentation of this file.
1/*
2-----------------------------------------------------------------------------
3This source file is part of OGRE
4 (Object-oriented Graphics Rendering Engine)
5For the latest info, see http://www.ogre3d.org/
6
7Copyright (c) 2000-2013 Torus Knot Software Ltd
8
9Permission is hereby granted, free of charge, to any person obtaining a copy
10of this software and associated documentation files (the "Software"), to deal
11in the Software without restriction, including without limitation the rights
12to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
13copies of the Software, and to permit persons to whom the Software is
14furnished to do so, subject to the following conditions:
15
16The above copyright notice and this permission notice shall be included in
17all copies or substantial portions of the Software.
18
19THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
20IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
22AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
23LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
24OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
25THE SOFTWARE.
26-----------------------------------------------------------------------------
27*/
28#ifndef __PlatformInformation_H__
29#define __PlatformInformation_H__
30
31#include "OgrePrerequisites.h"
32
33namespace Ogre {
34//
35// TODO: Puts following macros into OgrePlatform.h?
36//
37
38/* Initial CPU stuff to set.
39*/
40#define OGRE_CPU_UNKNOWN 0
41#define OGRE_CPU_X86 1
42#define OGRE_CPU_PPC 2
43#define OGRE_CPU_ARM 3
44#define OGRE_CPU_MIPS 4
45
46/* Find CPU type
47*/
48#if (defined(_MSC_VER) && (defined(_M_IX86) || defined(_M_X64))) || \
49 (defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__)))
50# define OGRE_CPU OGRE_CPU_X86
51
52#elif OGRE_PLATFORM == OGRE_PLATFORM_APPLE && defined(__BIG_ENDIAN__)
53# define OGRE_CPU OGRE_CPU_PPC
54#elif OGRE_PLATFORM == OGRE_PLATFORM_APPLE
55# define OGRE_CPU OGRE_CPU_X86
56#elif OGRE_PLATFORM == OGRE_PLATFORM_APPLE_IOS && (defined(__i386__) || defined(__x86_64__))
57# define OGRE_CPU OGRE_CPU_X86
58#elif defined(__arm__) || defined(_M_ARM) || defined(__arm64__) || defined(_aarch64_)
59# define OGRE_CPU OGRE_CPU_ARM
60#elif defined(__mips64) || defined(__mips64_)
61# define OGRE_CPU OGRE_CPU_MIPS
62#else
63# define OGRE_CPU OGRE_CPU_UNKNOWN
64#endif
65
66/* Find how to declare aligned variable.
67*/
68#if OGRE_COMPILER == OGRE_COMPILER_MSVC
69# define OGRE_ALIGNED_DECL(type, var, alignment) __declspec(align(alignment)) type var
70
71#elif (OGRE_COMPILER == OGRE_COMPILER_GNUC) || (OGRE_COMPILER == OGRE_COMPILER_CLANG)
72# define OGRE_ALIGNED_DECL(type, var, alignment) type var __attribute__((__aligned__(alignment)))
73
74#else
75# define OGRE_ALIGNED_DECL(type, var, alignment) type var
76#endif
77
80#if OGRE_CPU == OGRE_CPU_X86
81# define OGRE_SIMD_ALIGNMENT 16
82
83#else
84# define OGRE_SIMD_ALIGNMENT 16
85#endif
86
87/* Declare variable aligned to SIMD alignment.
88*/
89#define OGRE_SIMD_ALIGNED_DECL(type, var) OGRE_ALIGNED_DECL(type, var, OGRE_SIMD_ALIGNMENT)
90
91/* Define whether or not Ogre compiled with SSE supports.
92*/
93#if OGRE_DOUBLE_PRECISION == 0 && OGRE_CPU == OGRE_CPU_X86 && OGRE_COMPILER == OGRE_COMPILER_MSVC && \
94 OGRE_PLATFORM != OGRE_PLATFORM_NACL
95# define __OGRE_HAVE_SSE 1
96#elif OGRE_DOUBLE_PRECISION == 0 && OGRE_CPU == OGRE_CPU_X86 && (OGRE_COMPILER == OGRE_COMPILER_GNUC || OGRE_COMPILER == OGRE_COMPILER_CLANG) && \
97 OGRE_PLATFORM != OGRE_PLATFORM_APPLE_IOS && OGRE_PLATFORM != OGRE_PLATFORM_NACL
98# define __OGRE_HAVE_SSE 1
99#endif
100
101/* Define whether or not Ogre compiled with VFP support.
102 */
103#if OGRE_DOUBLE_PRECISION == 0 && OGRE_CPU == OGRE_CPU_ARM && (OGRE_COMPILER == OGRE_COMPILER_GNUC || OGRE_COMPILER == OGRE_COMPILER_CLANG) && defined(__ARM_ARCH_6K__) && defined(__VFP_FP__)
104# define __OGRE_HAVE_VFP 1
105#endif
106
107/* Define whether or not Ogre compiled with NEON support.
108 */
109#if OGRE_DOUBLE_PRECISION == 0 && OGRE_CPU == OGRE_CPU_ARM && (OGRE_COMPILER == OGRE_COMPILER_GNUC || OGRE_COMPILER == OGRE_COMPILER_CLANG) && defined(__ARM_ARCH_7A__) && defined(__ARM_NEON__)
110# define __OGRE_HAVE_NEON 1
111#endif
112
113/* Define whether or not Ogre compiled with MSA support.
114 */
115#if OGRE_DOUBLE_PRECISION == 0 && OGRE_CPU == OGRE_CPU_MIPS && (OGRE_COMPILER == OGRE_COMPILER_GNUC || OGRE_COMPILER == OGRE_COMPILER_CLANG) && defined(__mips_msa)
116# define __OGRE_HAVE_MSA 1
117#endif
118
119#ifndef __OGRE_HAVE_SSE
120# define __OGRE_HAVE_SSE 0
121#endif
122
123#ifndef __OGRE_HAVE_VFP
124# define __OGRE_HAVE_VFP 0
125#endif
126
127#ifndef __OGRE_HAVE_NEON
128# define __OGRE_HAVE_NEON 0
129#endif
130
131#ifndef __OGRE_HAVE_MSA
132# define __OGRE_HAVE_MSA 0
133#endif
134
157 {
158 public:
159
162 {
163#if OGRE_CPU == OGRE_CPU_X86
164 CPU_FEATURE_SSE = 1 << 0,
165 CPU_FEATURE_SSE2 = 1 << 1,
166 CPU_FEATURE_SSE3 = 1 << 2,
167 CPU_FEATURE_MMX = 1 << 3,
168 CPU_FEATURE_MMXEXT = 1 << 4,
169 CPU_FEATURE_3DNOW = 1 << 5,
170 CPU_FEATURE_3DNOWEXT = 1 << 6,
171 CPU_FEATURE_CMOV = 1 << 7,
172 CPU_FEATURE_TSC = 1 << 8,
173 CPU_FEATURE_FPU = 1 << 9,
174 CPU_FEATURE_PRO = 1 << 10,
175 CPU_FEATURE_HTT = 1 << 11,
176#elif OGRE_CPU == OGRE_CPU_ARM
177 CPU_FEATURE_VFP = 1 << 12,
178 CPU_FEATURE_NEON = 1 << 13,
179#elif OGRE_CPU == OGRE_CPU_MIPS
180 CPU_FEATURE_MSA = 1 << 14,
181#endif
182
183 CPU_FEATURE_NONE = 0
184 };
185
191 static const String& getCpuIdentifier(void);
192
198 static uint getCpuFeatures(void);
199
206
207
209 static void log(Log* pLog);
210
211 };
215}
216
217#endif // __PlatformInformation_H__
#define _OgreExport
Class which provides the run-time platform information Ogre runs on.
static const String & getCpuIdentifier(void)
Gets a string of the CPU identifier.
static uint getCpuFeatures(void)
Gets a or-masked of enum CpuFeatures that are supported by the CPU.
static bool hasCpuFeature(CpuFeatures feature)
Gets whether a specific feature is supported by the CPU.
static void log(Log *pLog)
Write the CPU information to the passed in Log.
CpuFeatures
Enum describing the different CPU features we want to check for, platform-dependent.
Reference-counted shared pointer, used for objects where implicit destruction is required.
_StringBase String

Copyright © 2012 Torus Knot Software Ltd
Creative Commons License
This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License.