Mercurial > sdl-ios-xcode
annotate test/testresample.c @ 5004:0c72ae7b7cb2
Added native atomic operations for Windows, Mac OS X, and gcc compiler intrinsics.
Changed the CAS return value to bool, so it's efficient with OSAtomicCompareAndSwap32Barrier()
Added an atomic test adapted from code by Michael Davidsaver
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sun, 16 Jan 2011 15:16:39 -0800 |
| parents | 62d4992e5a92 |
| children |
| rev | line source |
|---|---|
| 3017 | 1 #include <stdio.h> |
| 2 #include "SDL.h" | |
| 3 | |
| 3040 | 4 int |
| 5 main(int argc, char **argv) | |
| 3017 | 6 { |
| 7 SDL_AudioSpec spec; | |
| 8 SDL_AudioCVT cvt; | |
| 9 Uint32 len = 0; | |
| 10 Uint8 *data = NULL; | |
| 11 int cvtfreq = 0; | |
| 12 int bitsize = 0; | |
| 13 int blockalign = 0; | |
| 14 int avgbytes = 0; | |
| 15 SDL_RWops *io = NULL; | |
| 16 | |
| 3040 | 17 if (argc != 4) { |
| 3017 | 18 fprintf(stderr, "USAGE: %s in.wav out.wav newfreq\n", argv[0]); |
| 19 return 1; | |
| 20 } | |
| 21 | |
| 22 cvtfreq = atoi(argv[3]); | |
| 23 | |
| 3040 | 24 if (SDL_Init(SDL_INIT_AUDIO) == -1) { |
| 3017 | 25 fprintf(stderr, "SDL_Init() failed: %s\n", SDL_GetError()); |
| 26 return 2; | |
| 27 } | |
| 28 | |
| 3040 | 29 if (SDL_LoadWAV(argv[1], &spec, &data, &len) == NULL) { |
| 3017 | 30 fprintf(stderr, "failed to load %s: %s\n", argv[1], SDL_GetError()); |
| 31 SDL_Quit(); | |
| 32 return 3; | |
| 33 } | |
| 34 | |
| 35 if (SDL_BuildAudioCVT(&cvt, spec.format, spec.channels, spec.freq, | |
| 3040 | 36 spec.format, spec.channels, cvtfreq) == -1) { |
| 3017 | 37 fprintf(stderr, "failed to build CVT: %s\n", SDL_GetError()); |
| 38 SDL_FreeWAV(data); | |
| 39 SDL_Quit(); | |
| 40 return 4; | |
| 41 } | |
| 42 | |
| 43 cvt.len = len; | |
| 44 cvt.buf = (Uint8 *) malloc(len * cvt.len_mult); | |
| 3040 | 45 if (cvt.buf == NULL) { |
| 3017 | 46 fprintf(stderr, "Out of memory.\n"); |
| 47 SDL_FreeWAV(data); | |
| 48 SDL_Quit(); | |
| 49 return 5; | |
| 50 } | |
| 51 memcpy(cvt.buf, data, len); | |
| 52 | |
| 3040 | 53 if (SDL_ConvertAudio(&cvt) == -1) { |
| 3017 | 54 fprintf(stderr, "Conversion failed: %s\n", SDL_GetError()); |
| 55 free(cvt.buf); | |
| 56 SDL_FreeWAV(data); | |
| 57 SDL_Quit(); | |
| 58 return 6; | |
| 59 } | |
| 60 | |
| 61 /* write out a WAV header... */ | |
| 62 io = SDL_RWFromFile(argv[2], "wb"); | |
| 3040 | 63 if (io == NULL) { |
| 3017 | 64 fprintf(stderr, "fopen('%s') failed: %s\n", argv[2], SDL_GetError()); |
| 65 free(cvt.buf); | |
| 66 SDL_FreeWAV(data); | |
| 67 SDL_Quit(); | |
| 68 return 7; | |
| 69 } | |
| 70 | |
| 71 bitsize = SDL_AUDIO_BITSIZE(spec.format); | |
| 72 blockalign = (bitsize / 8) * spec.channels; | |
| 73 avgbytes = cvtfreq * blockalign; | |
| 74 | |
| 3040 | 75 SDL_WriteLE32(io, 0x46464952); /* RIFF */ |
| 3017 | 76 SDL_WriteLE32(io, len * cvt.len_mult + 36); |
| 3040 | 77 SDL_WriteLE32(io, 0x45564157); /* WAVE */ |
| 78 SDL_WriteLE32(io, 0x20746D66); /* fmt */ | |
| 79 SDL_WriteLE32(io, 16); /* chunk size */ | |
| 80 SDL_WriteLE16(io, 1); /* uncompressed */ | |
| 81 SDL_WriteLE16(io, spec.channels); /* channels */ | |
| 82 SDL_WriteLE32(io, cvtfreq); /* sample rate */ | |
| 83 SDL_WriteLE32(io, avgbytes); /* average bytes per second */ | |
| 84 SDL_WriteLE16(io, blockalign); /* block align */ | |
| 85 SDL_WriteLE16(io, bitsize); /* significant bits per sample */ | |
| 86 SDL_WriteLE32(io, 0x61746164); /* data */ | |
| 87 SDL_WriteLE32(io, cvt.len_cvt); /* size */ | |
|
3018
d706d3170d7d
testresample.c: Write out correct size for resampled buffer.
Ryan C. Gordon <icculus@icculus.org>
parents:
3017
diff
changeset
|
88 SDL_RWwrite(io, cvt.buf, cvt.len_cvt, 1); |
| 3017 | 89 |
| 3040 | 90 if (SDL_RWclose(io) == -1) { |
| 3017 | 91 fprintf(stderr, "fclose('%s') failed: %s\n", argv[2], SDL_GetError()); |
| 92 free(cvt.buf); | |
| 93 SDL_FreeWAV(data); | |
| 94 SDL_Quit(); | |
| 95 return 8; | |
| 3040 | 96 } // if |
| 3017 | 97 |
| 98 free(cvt.buf); | |
| 99 SDL_FreeWAV(data); | |
| 100 SDL_Quit(); | |
| 101 return 0; | |
| 3040 | 102 } // main |
| 3017 | 103 |
| 104 // end of resample_test.c ... |