Mercurial > sdl-ios-xcode
annotate include/SDL_timer.h @ 3099:82e60908fab1
Date: Mon, 23 Mar 2009 09:17:24 +0200
From: "Mike Gorchak"
Subject: New QNX patches
Please apply patch qnx4.diff, which is attached. What has been done:
1)Added back OpenGL ES renderer for QNX target. Added few corrections to
OpenGL ES renderer to let it work under QNX. OpenGL ES renderer do not
support textures under QNX, so I think some additional work must be done.
2) Added GL_OES_query_matrix extension to SDL_opengles.h header file, which
required by OpenGL ES 1.1 specification.
3) Added attribute clearing at the entrance of function
SDL_GL_GetAttribure(). Added error checking into the function
SDL_GL_GetAttribure(), because some attributes can't be obtained in OpenGL
ES 1.0.
4) Porting testdyngles to OpenGL ES 1.0 (1.1 has glColor4ub() and
glColor4f() functions, but 1.0 has glColor4f() only).
5) Added error checking after obtaining attributes using
SDL_GL_GetAttribute() function to the testgl2 and testgles.
6) Small correction to testmultiaudio with printing errors.
7) Added software and accelerated OpenGL ES 1.0 support into the QNX GF
driver.
Please remove ./src/audio/nto directory - it will not be used anymore.
Please create ./src/audio/qsa directory and add content of the archive
qsa.tar.gz into this directory. I rewrote some sound code, added support for
multiple audio cards, enumeration, etc. Added initial support for capture.
As far as I can understand SDL 1.3 is not supporting audio capture right now
? Sam, Am I right ? Or audio capture must be supported through the
PlayDevice routine ?
And last, please put file SDL_gf_opengles.c to the ./src/video/qnxgf
directory. It is OpenGL ES 1.1 emulation layer for some functions, which are
not supported by OpenGL ES 1.0.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Tue, 24 Mar 2009 10:33:12 +0000 |
| parents | 99210400e8b9 |
| children | d3baf5ac4e37 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
| 2859 | 3 Copyright (C) 1997-2009 Sam Lantinga |
| 0 | 4 |
| 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 Lesser General Public |
| 0 | 7 License as published by the Free Software Foundation; either |
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8 version 2.1 of the License, or (at your option) any later version. |
| 0 | 9 |
| 10 This library is distributed in the hope that it will be useful, | |
| 11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
|
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13 Lesser General Public License for more details. |
| 0 | 14 |
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15 You should have received a copy of the GNU Lesser General Public |
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16 License along with this library; if not, write to the Free Software |
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 0 | 18 |
| 19 Sam Lantinga | |
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20 slouken@libsdl.org |
| 0 | 21 */ |
| 22 | |
| 23 #ifndef _SDL_timer_h | |
| 24 #define _SDL_timer_h | |
| 25 | |
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26 /** |
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27 * \file SDL_timer.h |
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28 * |
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29 * Header for the SDL time management routines |
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30 */ |
| 0 | 31 |
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32 #include "SDL_stdinc.h" |
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33 #include "SDL_error.h" |
| 0 | 34 |
| 35 #include "begin_code.h" | |
| 36 /* Set up for C function definitions, even when using C++ */ | |
| 37 #ifdef __cplusplus | |
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38 /* *INDENT-OFF* */ |
| 0 | 39 extern "C" { |
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40 /* *INDENT-ON* */ |
| 0 | 41 #endif |
| 42 | |
| 43 /* This is the OS scheduler timeslice, in milliseconds */ | |
| 44 #define SDL_TIMESLICE 10 | |
| 45 | |
| 46 /* This is the maximum resolution of the SDL timer on all platforms */ | |
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47 #define TIMER_RESOLUTION 10 /* Experimentally determined */ |
| 0 | 48 |
| 49 /* Get the number of milliseconds since the SDL library initialization. | |
| 50 * Note that this value wraps if the program runs for more than ~49 days. | |
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51 */ |
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52 extern DECLSPEC Uint32 SDLCALL SDL_GetTicks(void); |
| 0 | 53 |
| 54 /* Wait a specified number of milliseconds before returning */ | |
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55 extern DECLSPEC void SDLCALL SDL_Delay(Uint32 ms); |
| 0 | 56 |
| 57 /* Function prototype for the timer callback function */ | |
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58 typedef Uint32(SDLCALL * SDL_TimerCallback) (Uint32 interval); |
| 0 | 59 |
| 60 /* Set a callback to run after the specified number of milliseconds has | |
| 61 * elapsed. The callback function is passed the current timer interval | |
| 62 * and returns the next timer interval. If the returned value is the | |
| 63 * same as the one passed in, the periodic alarm continues, otherwise a | |
| 64 * new alarm is scheduled. If the callback returns 0, the periodic alarm | |
| 65 * is cancelled. | |
| 66 * | |
| 67 * To cancel a currently running timer, call SDL_SetTimer(0, NULL); | |
| 68 * | |
| 69 * The timer callback function may run in a different thread than your | |
| 70 * main code, and so shouldn't call any functions from within itself. | |
| 71 * | |
| 72 * The maximum resolution of this timer is 10 ms, which means that if | |
| 73 * you request a 16 ms timer, your callback will run approximately 20 ms | |
| 74 * later on an unloaded system. If you wanted to set a flag signaling | |
| 75 * a frame update at 30 frames per second (every 33 ms), you might set a | |
| 76 * timer for 30 ms: | |
| 77 * SDL_SetTimer((33/10)*10, flag_update); | |
| 78 * | |
| 79 * If you use this function, you need to pass SDL_INIT_TIMER to SDL_Init(). | |
| 80 * | |
| 81 * Under UNIX, you should not use raise or use SIGALRM and this function | |
| 82 * in the same program, as it is implemented using setitimer(). You also | |
| 83 * should not use this function in multi-threaded applications as signals | |
| 84 * to multi-threaded apps have undefined behavior in some implementations. | |
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85 * |
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86 * This function returns 0 if successful, or -1 if there was an error. |
| 0 | 87 */ |
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88 extern DECLSPEC int SDLCALL SDL_SetTimer(Uint32 interval, |
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89 SDL_TimerCallback callback); |
| 0 | 90 |
| 91 /* New timer API, supports multiple timers | |
| 92 * Written by Stephane Peter <megastep@lokigames.com> | |
| 93 */ | |
| 94 | |
| 95 /* Function prototype for the new timer callback function. | |
| 96 * The callback function is passed the current timer interval and returns | |
| 97 * the next timer interval. If the returned value is the same as the one | |
| 98 * passed in, the periodic alarm continues, otherwise a new alarm is | |
| 99 * scheduled. If the callback returns 0, the periodic alarm is cancelled. | |
| 100 */ | |
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101 typedef Uint32(SDLCALL * SDL_NewTimerCallback) (Uint32 interval, void *param); |
| 0 | 102 |
| 103 /* Definition of the timer ID type */ | |
| 104 typedef struct _SDL_TimerID *SDL_TimerID; | |
| 105 | |
| 106 /* Add a new timer to the pool of timers already running. | |
| 107 Returns a timer ID, or NULL when an error occurs. | |
| 108 */ | |
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109 extern DECLSPEC SDL_TimerID SDLCALL SDL_AddTimer(Uint32 interval, |
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110 SDL_NewTimerCallback |
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111 callback, void *param); |
| 0 | 112 |
| 113 /* Remove one of the multiple timers knowing its ID. | |
| 114 * Returns a boolean value indicating success. | |
| 115 */ | |
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116 extern DECLSPEC SDL_bool SDLCALL SDL_RemoveTimer(SDL_TimerID t); |
| 0 | 117 |
| 118 /* Ends C function definitions when using C++ */ | |
| 119 #ifdef __cplusplus | |
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120 /* *INDENT-OFF* */ |
| 0 | 121 } |
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122 /* *INDENT-ON* */ |
| 0 | 123 #endif |
| 124 #include "close_code.h" | |
| 125 | |
| 126 #endif /* _SDL_timer_h */ | |
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127 |
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128 /* vi: set ts=4 sw=4 expandtab: */ |