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annotate include/SDL_cpuinfo.h @ 1180:bdcb8bb4c831

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From: Tyler Montbriand <tsm@accesscomm.ca> To: sdl@libsdl.org Date: Fri, 30 Sep 2005 02:24:50 -0600 Subject: [SDL] WinCE timers, continued Here's a strange timer for Windows CE that doesn't ignore time across suspends. It uses GetSystemTime to keep the time continuous, and GetTicks to get finer-grained readings than 1 second. It detects the difference between the GetTicks time and GetSystemTime time on power-on to keep the error within one second max. It's not a patch on the current win32 timer code -- took one look at that and figured it had more than enough #ifdefs already. It's windows-ce specific. Another thing I've noticed is that the Windows CE 4.0 and newer API has functions warn processes about suspends. This is something SDL REALLY needs for audio in particular, because turning it off while it's playing causes anything that uses audio to hardlock the system on power-on. Unfortunately I don't have 4.0 to play with. :(
author Ryan C. Gordon <icculus@icculus.org>
date Tue, 22 Nov 2005 07:10:07 +0000
parents ca06a994f03c
children c9b51268668f
rev   line source
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22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2004 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Library General Public
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7 License as published by the Free Software Foundation; either
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8 version 2 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Library General Public License for more details.
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14
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15 You should have received a copy of the GNU Library General Public
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16 License along with this library; if not, write to the Free
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17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22
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23 #ifdef SAVE_RCSID
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24 static char rcsid =
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25 "@(#) $Id$";
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26 #endif
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27
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28 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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29 /* CPU feature detection for SDL */
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30
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31 #ifndef _SDL_cpuinfo_h
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32 #define _SDL_cpuinfo_h
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33
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34 #include "begin_code.h"
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35 /* Set up for C function definitions, even when using C++ */
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36 #ifdef __cplusplus
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37 extern "C" {
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38 #endif
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39
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40 /* This function returns true if the CPU has the RDTSC instruction
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41 */
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42 extern DECLSPEC SDL_bool SDLCALL SDL_HasRDTSC();
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43
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44 /* This function returns true if the CPU has MMX features
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45 */
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46 extern DECLSPEC SDL_bool SDLCALL SDL_HasMMX();
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47
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48 /* This function returns true if the CPU has MMX Ext. features
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49 */
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50 extern DECLSPEC SDL_bool SDLCALL SDL_HasMMXExt();
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51
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52 /* This function returns true if the CPU has 3DNow features
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53 */
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54 extern DECLSPEC SDL_bool SDLCALL SDL_Has3DNow();
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55
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56 /* This function returns true if the CPU has 3DNow! Ext. features
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57 */
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58 extern DECLSPEC SDL_bool SDLCALL SDL_Has3DNowExt();
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59
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60 /* This function returns true if the CPU has SSE features
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61 */
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62 extern DECLSPEC SDL_bool SDLCALL SDL_HasSSE();
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63
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64 /* This function returns true if the CPU has SSE2 features
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65 */
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66 extern DECLSPEC SDL_bool SDLCALL SDL_HasSSE2();
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67
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68 /* This function returns true if the CPU has AltiVec features
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69 */
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70 extern DECLSPEC SDL_bool SDLCALL SDL_HasAltiVec();
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71
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72 /* Ends C function definitions when using C++ */
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73 #ifdef __cplusplus
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74 }
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75 #endif
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76 #include "close_code.h"
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78 #endif /* _SDL_cpuinfo_h */