Mercurial > sdl-ios-xcode
annotate test/testcdrom.c @ 638:b0108e9dea53
Date: Sun, 11 May 2003 19:59:06 +0300
From: Pasi K?rkk?inen
Subject: [PATCH] fix SDL OpenGL segfault with DRI/Mesa drivers and Glew
Hello!
The attached patch fixes a bug in SDL which causes SDL to crash in
X11_GL_Shutdown() if you are using DRI/Mesa drivers AND glew
(http://glew.sf.net).
The bug is caused by a namespace collision affecting dlsym() to fetch wrong
pointer for glXReleaseBuffersMESA() (uninitialized pointer from glew because
the extension is NOT supported by the driver) and then SDL calling it in
X11_GL_Shutdown().
SDL should check if the glXReleaseBuffersMESA() is really supported by the
driver (from the extensions string) before calling it.
Attached patch adds extension string parsing to check if
glXReleaseBuffersMESA() is really supported (and this way
prevents the segfault).
Availability of the extensions should be _always_ checked from the
extensions string rather than using dlsym()!
Please add it to the next version of SDL.
Thanks to gltron and author of glew to help fixing this.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sat, 28 Jun 2003 17:27:33 +0000 |
| parents | 9c6717a1c66f |
| children | be9c9c8f6d53 |
| rev | line source |
|---|---|
| 0 | 1 |
| 2 /* Test the SDL CD-ROM audio functions */ | |
| 3 | |
| 4 #include <stdlib.h> | |
| 5 #include <stdio.h> | |
| 6 #include <ctype.h> | |
| 7 | |
| 8 #include "SDL.h" | |
| 9 | |
| 10 | |
| 11 static void PrintStatus(int driveindex, SDL_CD *cdrom) | |
| 12 { | |
| 13 CDstatus status; | |
| 14 char *status_str; | |
| 15 | |
| 16 status = SDL_CDStatus(cdrom); | |
| 17 switch (status) { | |
| 18 case CD_TRAYEMPTY: | |
| 19 status_str = "tray empty"; | |
| 20 break; | |
| 21 case CD_STOPPED: | |
| 22 status_str = "stopped"; | |
| 23 break; | |
| 24 case CD_PLAYING: | |
| 25 status_str = "playing"; | |
| 26 break; | |
| 27 case CD_PAUSED: | |
| 28 status_str = "paused"; | |
| 29 break; | |
| 30 case CD_ERROR: | |
| 31 status_str = "error state"; | |
| 32 break; | |
| 33 } | |
| 34 printf("Drive %d status: %s\n", driveindex, status_str); | |
| 35 if ( status >= CD_PLAYING ) { | |
| 36 int m, s, f; | |
| 37 FRAMES_TO_MSF(cdrom->cur_frame, &m, &s, &f); | |
| 38 printf("Currently playing track %d, %d:%2.2d\n", | |
| 39 cdrom->track[cdrom->cur_track].id, m, s); | |
| 40 } | |
| 41 } | |
| 42 | |
| 43 static void ListTracks(SDL_CD *cdrom) | |
| 44 { | |
| 45 int i; | |
| 46 int m, s, f; | |
|
568
0cd6b268193b
Date: Thu, 16 Jan 2003 13:48:31 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
0
diff
changeset
|
47 char* trtype; |
| 0 | 48 |
| 49 SDL_CDStatus(cdrom); | |
| 50 printf("Drive tracks: %d\n", cdrom->numtracks); | |
| 51 for ( i=0; i<cdrom->numtracks; ++i ) { | |
| 52 FRAMES_TO_MSF(cdrom->track[i].length, &m, &s, &f); | |
| 53 if ( f > 0 ) | |
| 54 ++s; | |
|
568
0cd6b268193b
Date: Thu, 16 Jan 2003 13:48:31 +0200
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parents:
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diff
changeset
|
55 switch(cdrom->track[i].type) |
|
0cd6b268193b
Date: Thu, 16 Jan 2003 13:48:31 +0200
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parents:
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diff
changeset
|
56 { |
|
0cd6b268193b
Date: Thu, 16 Jan 2003 13:48:31 +0200
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parents:
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57 case SDL_AUDIO_TRACK: |
|
0cd6b268193b
Date: Thu, 16 Jan 2003 13:48:31 +0200
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parents:
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diff
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58 trtype="audio"; |
|
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Date: Thu, 16 Jan 2003 13:48:31 +0200
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59 break; |
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Date: Thu, 16 Jan 2003 13:48:31 +0200
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parents:
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60 case SDL_DATA_TRACK: |
|
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Date: Thu, 16 Jan 2003 13:48:31 +0200
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parents:
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61 trtype="data"; |
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Date: Thu, 16 Jan 2003 13:48:31 +0200
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62 break; |
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Date: Thu, 16 Jan 2003 13:48:31 +0200
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63 default: |
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0cd6b268193b
Date: Thu, 16 Jan 2003 13:48:31 +0200
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parents:
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64 trtype="unknown"; |
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0cd6b268193b
Date: Thu, 16 Jan 2003 13:48:31 +0200
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parents:
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65 break; |
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0cd6b268193b
Date: Thu, 16 Jan 2003 13:48:31 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
0
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66 } |
|
613
9c6717a1c66f
Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
568
diff
changeset
|
67 printf("\tTrack (index %d) %d: %d:%2.2d / %d [%s track]\n", i, |
|
9c6717a1c66f
Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
568
diff
changeset
|
68 cdrom->track[i].id, m, s, cdrom->track[i].length, trtype); |
| 0 | 69 } |
| 70 } | |
| 71 | |
| 72 static void PrintUsage(char *argv0) | |
| 73 { | |
| 74 fprintf(stderr, "Usage: %s [drive#] [command] [command] ...\n", argv0); | |
| 75 fprintf(stderr, "Where 'command' is one of:\n"); | |
| 76 fprintf(stderr, " -status\n"); | |
| 77 fprintf(stderr, " -list\n"); | |
| 78 fprintf(stderr, " -play [first_track] [first_frame] [num_tracks] [num_frames]\n"); | |
| 79 fprintf(stderr, " -pause\n"); | |
| 80 fprintf(stderr, " -resume\n"); | |
| 81 fprintf(stderr, " -stop\n"); | |
| 82 fprintf(stderr, " -eject\n"); | |
| 83 fprintf(stderr, " -sleep <milliseconds>\n"); | |
| 84 } | |
| 85 | |
| 86 int main(int argc, char *argv[]) | |
| 87 { | |
| 88 int drive; | |
| 89 int i; | |
| 90 SDL_CD *cdrom; | |
| 91 | |
| 92 /* Initialize SDL first */ | |
| 93 if ( SDL_Init(SDL_INIT_CDROM) < 0 ) { | |
| 94 fprintf(stderr, "Couldn't initialize SDL: %s\n",SDL_GetError()); | |
| 95 exit(1); | |
| 96 } | |
| 97 atexit(SDL_Quit); | |
| 98 | |
| 99 /* Find out how many CD-ROM drives are connected to the system */ | |
| 100 if ( SDL_CDNumDrives() == 0 ) { | |
| 101 printf("No CD-ROM devices detected\n"); | |
| 102 exit(0); | |
| 103 } | |
| 104 printf("Drives available: %d\n", SDL_CDNumDrives()); | |
| 105 for ( i=0; i<SDL_CDNumDrives(); ++i ) { | |
| 106 printf("Drive %d: \"%s\"\n", i, SDL_CDName(i)); | |
| 107 } | |
| 108 | |
| 109 /* Open the CD-ROM */ | |
| 110 drive = 0; | |
| 111 i=1; | |
| 112 if ( argv[i] && isdigit(argv[i][0]) ) { | |
| 113 drive = atoi(argv[i++]); | |
| 114 } | |
| 115 cdrom = SDL_CDOpen(drive); | |
| 116 if ( cdrom == NULL ) { | |
| 117 fprintf(stderr, "Couldn't open drive %d: %s\n", drive, | |
| 118 SDL_GetError()); | |
| 119 exit(2); | |
| 120 } | |
| 121 #ifdef TEST_NULLCD | |
| 122 cdrom = NULL; | |
| 123 #endif | |
| 124 | |
| 125 /* Find out which function to perform */ | |
| 126 for ( ; argv[i]; ++i ) { | |
| 127 if ( strcmp(argv[i], "-status") == 0 ) { | |
| 128 /* PrintStatus(drive, cdrom); */ | |
| 129 } else | |
| 130 if ( strcmp(argv[i], "-list") == 0 ) { | |
| 131 ListTracks(cdrom); | |
| 132 } else | |
| 133 if ( strcmp(argv[i], "-play") == 0 ) { | |
| 134 int strack, sframe; | |
| 135 int ntrack, nframe; | |
| 136 | |
| 137 strack = 0; | |
| 138 if ( argv[i+1] && isdigit(argv[i+1][0]) ) { | |
| 139 strack = atoi(argv[++i]); | |
| 140 } | |
| 141 sframe = 0; | |
| 142 if ( argv[i+1] && isdigit(argv[i+1][0]) ) { | |
| 143 sframe = atoi(argv[++i]); | |
| 144 } | |
| 145 ntrack = 0; | |
| 146 if ( argv[i+1] && isdigit(argv[i+1][0]) ) { | |
| 147 ntrack = atoi(argv[++i]); | |
| 148 } | |
| 149 nframe = 0; | |
| 150 if ( argv[i+1] && isdigit(argv[i+1][0]) ) { | |
| 151 nframe = atoi(argv[++i]); | |
| 152 } | |
| 153 if ( CD_INDRIVE(SDL_CDStatus(cdrom)) ) { | |
| 154 if ( SDL_CDPlayTracks(cdrom, strack, sframe, | |
| 155 ntrack, nframe) < 0 ) { | |
| 156 fprintf(stderr, | |
| 157 "Couldn't play tracks %d/%d for %d/%d: %s\n", | |
| 158 strack, sframe, ntrack, nframe, SDL_GetError()); | |
| 159 } | |
| 160 } else { | |
| 161 fprintf(stderr, "No CD in drive!\n"); | |
| 162 } | |
| 163 } else | |
| 164 if ( strcmp(argv[i], "-pause") == 0 ) { | |
| 165 if ( SDL_CDPause(cdrom) < 0 ) { | |
| 166 fprintf(stderr, "Couldn't pause CD: %s\n", | |
| 167 SDL_GetError()); | |
| 168 } | |
| 169 } else | |
| 170 if ( strcmp(argv[i], "-resume") == 0 ) { | |
| 171 if ( SDL_CDResume(cdrom) < 0 ) { | |
| 172 fprintf(stderr, "Couldn't resume CD: %s\n", | |
| 173 SDL_GetError()); | |
| 174 } | |
| 175 } else | |
| 176 if ( strcmp(argv[i], "-stop") == 0 ) { | |
| 177 if ( SDL_CDStop(cdrom) < 0 ) { | |
| 178 fprintf(stderr, "Couldn't eject CD: %s\n", | |
| 179 SDL_GetError()); | |
| 180 } | |
| 181 } else | |
| 182 if ( strcmp(argv[i], "-eject") == 0 ) { | |
| 183 if ( SDL_CDEject(cdrom) < 0 ) { | |
| 184 fprintf(stderr, "Couldn't eject CD: %s\n", | |
| 185 SDL_GetError()); | |
| 186 } | |
| 187 } else | |
| 188 if ( (strcmp(argv[i], "-sleep") == 0) && | |
| 189 (argv[i+1] && isdigit(argv[i+1][0])) ) { | |
| 190 SDL_Delay(atoi(argv[++i])); | |
| 191 printf("Delayed %d milliseconds\n", atoi(argv[i])); | |
| 192 } else { | |
| 193 PrintUsage(argv[0]); | |
| 194 SDL_CDClose(cdrom); | |
| 195 exit(1); | |
| 196 } | |
| 197 } | |
| 198 PrintStatus(drive, cdrom); | |
| 199 SDL_CDClose(cdrom); | |
| 200 | |
| 201 return(0); | |
| 202 } |