Mercurial > sdl-ios-xcode
view test/testcdrom.c @ 615:7ec821f3cbd0
Date: Thu, 17 Apr 2003 23:27:34 -0400
From: Darrell Walisser
Subject: Yet another OS X cursor bug
The synopsis:
1. Call SDL_ShowCursor(0);
2. Call SDL_SetVideoMode();
3. Call SDL_GetEvent();
3. Call SDL_ShowCursor(1);
The result: Sometimes the cursor doesn't come back! Ack! Oddly enough,
it does come back when mousing over the dock or clicking in the menu
bar. But that's besides the point.
The reason why this is happening is a flaw in the handling of
activation/deactivation events. The short explanation is that the
HideCursor() and ShowCursor() calls must be balanced, but if the cursor
was initially hidden, HideCursor() was called again on the activate
event - so now the next ShowCursor() fails (as does the next, and the
next, for some reason).
So, here's the patch. All it does is keep track of the
HideCursor()/ShowCursor() calls so that they will always be balanced.
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Sun, 20 Apr 2003 05:41:16 +0000 |
parents | 9c6717a1c66f |
children | be9c9c8f6d53 |
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line source
/* Test the SDL CD-ROM audio functions */ #include <stdlib.h> #include <stdio.h> #include <ctype.h> #include "SDL.h" static void PrintStatus(int driveindex, SDL_CD *cdrom) { CDstatus status; char *status_str; status = SDL_CDStatus(cdrom); switch (status) { case CD_TRAYEMPTY: status_str = "tray empty"; break; case CD_STOPPED: status_str = "stopped"; break; case CD_PLAYING: status_str = "playing"; break; case CD_PAUSED: status_str = "paused"; break; case CD_ERROR: status_str = "error state"; break; } printf("Drive %d status: %s\n", driveindex, status_str); if ( status >= CD_PLAYING ) { int m, s, f; FRAMES_TO_MSF(cdrom->cur_frame, &m, &s, &f); printf("Currently playing track %d, %d:%2.2d\n", cdrom->track[cdrom->cur_track].id, m, s); } } static void ListTracks(SDL_CD *cdrom) { int i; int m, s, f; char* trtype; SDL_CDStatus(cdrom); printf("Drive tracks: %d\n", cdrom->numtracks); for ( i=0; i<cdrom->numtracks; ++i ) { FRAMES_TO_MSF(cdrom->track[i].length, &m, &s, &f); if ( f > 0 ) ++s; switch(cdrom->track[i].type) { case SDL_AUDIO_TRACK: trtype="audio"; break; case SDL_DATA_TRACK: trtype="data"; break; default: trtype="unknown"; break; } printf("\tTrack (index %d) %d: %d:%2.2d / %d [%s track]\n", i, cdrom->track[i].id, m, s, cdrom->track[i].length, trtype); } } static void PrintUsage(char *argv0) { fprintf(stderr, "Usage: %s [drive#] [command] [command] ...\n", argv0); fprintf(stderr, "Where 'command' is one of:\n"); fprintf(stderr, " -status\n"); fprintf(stderr, " -list\n"); fprintf(stderr, " -play [first_track] [first_frame] [num_tracks] [num_frames]\n"); fprintf(stderr, " -pause\n"); fprintf(stderr, " -resume\n"); fprintf(stderr, " -stop\n"); fprintf(stderr, " -eject\n"); fprintf(stderr, " -sleep <milliseconds>\n"); } int main(int argc, char *argv[]) { int drive; int i; SDL_CD *cdrom; /* Initialize SDL first */ if ( SDL_Init(SDL_INIT_CDROM) < 0 ) { fprintf(stderr, "Couldn't initialize SDL: %s\n",SDL_GetError()); exit(1); } atexit(SDL_Quit); /* Find out how many CD-ROM drives are connected to the system */ if ( SDL_CDNumDrives() == 0 ) { printf("No CD-ROM devices detected\n"); exit(0); } printf("Drives available: %d\n", SDL_CDNumDrives()); for ( i=0; i<SDL_CDNumDrives(); ++i ) { printf("Drive %d: \"%s\"\n", i, SDL_CDName(i)); } /* Open the CD-ROM */ drive = 0; i=1; if ( argv[i] && isdigit(argv[i][0]) ) { drive = atoi(argv[i++]); } cdrom = SDL_CDOpen(drive); if ( cdrom == NULL ) { fprintf(stderr, "Couldn't open drive %d: %s\n", drive, SDL_GetError()); exit(2); } #ifdef TEST_NULLCD cdrom = NULL; #endif /* Find out which function to perform */ for ( ; argv[i]; ++i ) { if ( strcmp(argv[i], "-status") == 0 ) { /* PrintStatus(drive, cdrom); */ } else if ( strcmp(argv[i], "-list") == 0 ) { ListTracks(cdrom); } else if ( strcmp(argv[i], "-play") == 0 ) { int strack, sframe; int ntrack, nframe; strack = 0; if ( argv[i+1] && isdigit(argv[i+1][0]) ) { strack = atoi(argv[++i]); } sframe = 0; if ( argv[i+1] && isdigit(argv[i+1][0]) ) { sframe = atoi(argv[++i]); } ntrack = 0; if ( argv[i+1] && isdigit(argv[i+1][0]) ) { ntrack = atoi(argv[++i]); } nframe = 0; if ( argv[i+1] && isdigit(argv[i+1][0]) ) { nframe = atoi(argv[++i]); } if ( CD_INDRIVE(SDL_CDStatus(cdrom)) ) { if ( SDL_CDPlayTracks(cdrom, strack, sframe, ntrack, nframe) < 0 ) { fprintf(stderr, "Couldn't play tracks %d/%d for %d/%d: %s\n", strack, sframe, ntrack, nframe, SDL_GetError()); } } else { fprintf(stderr, "No CD in drive!\n"); } } else if ( strcmp(argv[i], "-pause") == 0 ) { if ( SDL_CDPause(cdrom) < 0 ) { fprintf(stderr, "Couldn't pause CD: %s\n", SDL_GetError()); } } else if ( strcmp(argv[i], "-resume") == 0 ) { if ( SDL_CDResume(cdrom) < 0 ) { fprintf(stderr, "Couldn't resume CD: %s\n", SDL_GetError()); } } else if ( strcmp(argv[i], "-stop") == 0 ) { if ( SDL_CDStop(cdrom) < 0 ) { fprintf(stderr, "Couldn't eject CD: %s\n", SDL_GetError()); } } else if ( strcmp(argv[i], "-eject") == 0 ) { if ( SDL_CDEject(cdrom) < 0 ) { fprintf(stderr, "Couldn't eject CD: %s\n", SDL_GetError()); } } else if ( (strcmp(argv[i], "-sleep") == 0) && (argv[i+1] && isdigit(argv[i+1][0])) ) { SDL_Delay(atoi(argv[++i])); printf("Delayed %d milliseconds\n", atoi(argv[i])); } else { PrintUsage(argv[0]); SDL_CDClose(cdrom); exit(1); } } PrintStatus(drive, cdrom); SDL_CDClose(cdrom); return(0); }