sdl-ios-xcode: test/loopwave.c annotate

annotate test/loopwave.c @ 1675:d33dcfc3fde7 SDL-1.3

Overlay functions are being replaced by YUV textures. If the driver doesn't support YUV textures, they can be emulated by backing the texture with an RGB texture and using the software conversion routines. Note that it doesn't make sense to lock a portion of a YV12 texture, since you'd need to return three pixel pointers and pitch values instead of the one that's available through the API. I'm guessing that's one of the reasons DirectX 9 doesn't support this format at all.

author	Sam Lantinga <slouken@libsdl.org>
date	Sun, 11 Jun 2006 07:30:16 +0000
parents	4da1ee79c9af
children

rev	line source
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2 /* Program to load a wave file and loop playing it using SDL sound */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	3
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	4 /* loopwaves.c is much more robust in handling WAVE files --
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	5 This is only for simple WAVEs
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	6 */
1463 0394f8ebc42d * empty log message * Sam Lantinga <slouken@libsdl.org> parents: 1151 diff changeset	7 #include "SDL_config.h"
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	8
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	9 #include <stdio.h>
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	10 #include <stdlib.h>
1463 0394f8ebc42d * empty log message * Sam Lantinga <slouken@libsdl.org> parents: 1151 diff changeset	11
0394f8ebc42d * empty log message * Sam Lantinga <slouken@libsdl.org> parents: 1151 diff changeset	12 #if HAVE_SIGNAL_H
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	13 #include <signal.h>
1463 0394f8ebc42d * empty log message * Sam Lantinga <slouken@libsdl.org> parents: 1151 diff changeset	14 #endif
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	15
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	16 #include "SDL.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	17 #include "SDL_audio.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	18
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1660 diff changeset	19 struct
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1660 diff changeset	20 {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1660 diff changeset	21 SDL_AudioSpec spec;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1660 diff changeset	22 Uint8 sound; / Pointer to wave data */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1660 diff changeset	23 Uint32 soundlen; /* Length of wave data */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1660 diff changeset	24 int soundpos; /* Current play position */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	25 } wave;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	26
1151 be9c9c8f6d53 Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe Ryan C. Gordon <icculus@icculus.org> parents: 0 diff changeset	27
be9c9c8f6d53 Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe Ryan C. Gordon <icculus@icculus.org> parents: 0 diff changeset	28 /* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1660 diff changeset	29 static void
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	30 quit(int rc)
1151 be9c9c8f6d53 Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe Ryan C. Gordon <icculus@icculus.org> parents: 0 diff changeset	31 {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	32 SDL_Quit();
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	33 exit(rc);
1151 be9c9c8f6d53 Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe Ryan C. Gordon <icculus@icculus.org> parents: 0 diff changeset	34 }
be9c9c8f6d53 Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe Ryan C. Gordon <icculus@icculus.org> parents: 0 diff changeset	35
be9c9c8f6d53 Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe Ryan C. Gordon <icculus@icculus.org> parents: 0 diff changeset	36
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1660 diff changeset	37 void SDLCALL
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	38 fillerup(void unused, Uint8 stream, int len)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	39 {
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1660 diff changeset	40 Uint8 *waveptr;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1660 diff changeset	41 int waveleft;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	42
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1660 diff changeset	43 /* Set up the pointers */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1660 diff changeset	44 waveptr = wave.sound + wave.soundpos;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1660 diff changeset	45 waveleft = wave.soundlen - wave.soundpos;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	46
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1660 diff changeset	47 /* Go! */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1660 diff changeset	48 while (waveleft <= len) {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	49 SDL_MixAudio(stream, waveptr, waveleft, SDL_MIX_MAXVOLUME);
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1660 diff changeset	50 stream += waveleft;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1660 diff changeset	51 len -= waveleft;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1660 diff changeset	52 waveptr = wave.sound;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1660 diff changeset	53 waveleft = wave.soundlen;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1660 diff changeset	54 wave.soundpos = 0;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1660 diff changeset	55 }
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	56 SDL_MixAudio(stream, waveptr, len, SDL_MIX_MAXVOLUME);
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1660 diff changeset	57 wave.soundpos += len;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	58 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	59
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	60 static int done = 0;
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1660 diff changeset	61 void
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	62 poked(int sig)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	63 {
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1660 diff changeset	64 done = 1;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	65 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	66
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1660 diff changeset	67 int
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	68 main(int argc, char *argv[])
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	69 {
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1660 diff changeset	70 int i, n;
1660 8b9d79e7eacf Added API requested in bug #43: Sam Lantinga <slouken@libsdl.org> parents: 1659 diff changeset	71
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1660 diff changeset	72 /* Print available audio drivers */
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	73 n = SDL_GetNumAudioDrivers();
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1660 diff changeset	74 if (n == 0) {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	75 printf("No built-in audio drivers\n");
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1660 diff changeset	76 } else {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	77 printf("Built-in audio drivers:");
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1660 diff changeset	78 for (i = 0; i < n; ++i) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1660 diff changeset	79 if (i > 0) {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	80 printf(",");
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1660 diff changeset	81 }
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	82 printf(" %s", SDL_GetAudioDriver(i));
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1660 diff changeset	83 }
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	84 printf("\n");
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1660 diff changeset	85 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	86
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1660 diff changeset	87 /* Load the SDL library */
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	88 if (SDL_Init(SDL_INIT_AUDIO) < 0) {
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	89 fprintf(stderr, "Couldn't initialize SDL: %s\n", SDL_GetError());
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1660 diff changeset	90 return (1);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1660 diff changeset	91 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1660 diff changeset	92 if (argv[1] == NULL) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1660 diff changeset	93 argv[1] = "sample.wav";
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1660 diff changeset	94 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1660 diff changeset	95 /* Load the wave file into memory */
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	96 if (SDL_LoadWAV(argv[1], &wave.spec, &wave.sound, &wave.soundlen) == NULL) {
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	97 fprintf(stderr, "Couldn't load %s: %s\n", argv[1], SDL_GetError());
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	98 quit(1);
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1660 diff changeset	99 }
1463 0394f8ebc42d * empty log message * Sam Lantinga <slouken@libsdl.org> parents: 1151 diff changeset	100
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1660 diff changeset	101 wave.spec.callback = fillerup;
1463 0394f8ebc42d * empty log message * Sam Lantinga <slouken@libsdl.org> parents: 1151 diff changeset	102 #if HAVE_SIGNAL_H
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1660 diff changeset	103 /* Set the signals */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	104 #ifdef SIGHUP
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	105 signal(SIGHUP, poked);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	106 #endif
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	107 signal(SIGINT, poked);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	108 #ifdef SIGQUIT
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	109 signal(SIGQUIT, poked);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	110 #endif
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	111 signal(SIGTERM, poked);
1463 0394f8ebc42d * empty log message * Sam Lantinga <slouken@libsdl.org> parents: 1151 diff changeset	112 #endif /* HAVE_SIGNAL_H */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	113
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1660 diff changeset	114 /* Initialize fillerup() variables */
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	115 if (SDL_OpenAudio(&wave.spec, NULL) < 0) {
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	116 fprintf(stderr, "Couldn't open audio: %s\n", SDL_GetError());
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	117 SDL_FreeWAV(wave.sound);
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	118 quit(2);
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1660 diff changeset	119 }
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	120 SDL_PauseAudio(0);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	121
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1660 diff changeset	122 /* Let the audio run */
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	123 printf("Using audio driver: %s\n", SDL_GetCurrentAudioDriver());
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	124 while (!done && (SDL_GetAudioStatus() == SDL_AUDIO_PLAYING))
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	125 SDL_Delay(1000);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	126
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1660 diff changeset	127 /* Clean up on signal */
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	128 SDL_CloseAudio();
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	129 SDL_FreeWAV(wave.sound);
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	130 SDL_Quit();
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1660 diff changeset	131 return (0);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	132 }

Mercurial > sdl-ios-xcode

annotate test/loopwave.c @ 1675:d33dcfc3fde7 SDL-1.3