src/audio/SDL_audiotypecvt.c
author Sam Lantinga <slouken@libsdl.org>
Wed, 16 Feb 2011 17:17:21 -0800
changeset 5328 f34a5f9ce9f6
parent 5262 b530ef003506
child 5535 96594ac5fd1a
permissions -rw-r--r--
Fixed bug 1122 (spinlock fails to compile with -march=armv4t)
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/* DO NOT EDIT!  This file is generated by sdlgenaudiocvt.pl */
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/*
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    SDL - Simple DirectMedia Layer
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    Copyright (C) 1997-2011 Sam Lantinga
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    This library is free software; you can redistribute it and/or
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    modify it under the terms of the GNU Lesser General Public
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    License as published by the Free Software Foundation; either
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    version 2.1 of the License, or (at your option) any later version.
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    This library is distributed in the hope that it will be useful,
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    but WITHOUT ANY WARRANTY; without even the implied warranty of
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    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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    Lesser General Public License for more details.
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    You should have received a copy of the GNU Lesser General Public
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    License along with this library; if not, write to the Free Software
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    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
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    Sam Lantinga
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    slouken@libsdl.org
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*/
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#include "SDL_config.h"
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#include "SDL_audio.h"
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#include "SDL_audio_c.h"
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#ifndef DEBUG_CONVERT
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#define DEBUG_CONVERT 0
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#endif
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/* If you can guarantee your data and need space, you can eliminate code... */
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/* Just build the arbitrary resamplers if you're saving code space. */
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#ifndef LESS_RESAMPLERS
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#define LESS_RESAMPLERS 0
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#endif
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/* Don't build any resamplers if you're REALLY saving code space. */
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#ifndef NO_RESAMPLERS
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#define NO_RESAMPLERS 0
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#endif
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/* Don't build any type converters if you're saving code space. */
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#ifndef NO_CONVERTERS
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#define NO_CONVERTERS 0
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#endif
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/* *INDENT-OFF* */
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#define DIVBY127 0.0078740157480315f
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#define DIVBY32767 3.05185094759972e-05f
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#define DIVBY2147483647 4.6566128752458e-10f
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#if !NO_CONVERTERS
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static void SDLCALL
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SDL_Convert_U8_to_S8(SDL_AudioCVT * cvt, SDL_AudioFormat format)
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{
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    int i;
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    const Uint8 *src;
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    Sint8 *dst;
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#if DEBUG_CONVERT
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    fprintf(stderr, "Converting AUDIO_U8 to AUDIO_S8.\n");
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#endif
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    src = (const Uint8 *) cvt->buf;
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    dst = (Sint8 *) cvt->buf;
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    for (i = cvt->len_cvt / sizeof (Uint8); i; --i, ++src, ++dst) {
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        const Sint8 val = ((*src) ^ 0x80);
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        *dst = ((Sint8) val);
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    }
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    if (cvt->filters[++cvt->filter_index]) {
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        cvt->filters[cvt->filter_index] (cvt, AUDIO_S8);
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    }
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}
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static void SDLCALL
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SDL_Convert_U8_to_U16LSB(SDL_AudioCVT * cvt, SDL_AudioFormat format)
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{
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    int i;
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    const Uint8 *src;
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    Uint16 *dst;
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#if DEBUG_CONVERT
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    fprintf(stderr, "Converting AUDIO_U8 to AUDIO_U16LSB.\n");
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#endif
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    src = ((const Uint8 *) (cvt->buf + cvt->len_cvt)) - 1;
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    dst = ((Uint16 *) (cvt->buf + cvt->len_cvt * 2)) - 1;
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    for (i = cvt->len_cvt / sizeof (Uint8); i; --i, --src, --dst) {
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        const Uint16 val = (((Uint16) *src) << 8);
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        *dst = SDL_SwapLE16(val);
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    }
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    cvt->len_cvt *= 2;
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    if (cvt->filters[++cvt->filter_index]) {
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        cvt->filters[cvt->filter_index] (cvt, AUDIO_U16LSB);
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    }
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}
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static void SDLCALL
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SDL_Convert_U8_to_S16LSB(SDL_AudioCVT * cvt, SDL_AudioFormat format)
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{
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    int i;
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    const Uint8 *src;
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    Sint16 *dst;
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#if DEBUG_CONVERT
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    fprintf(stderr, "Converting AUDIO_U8 to AUDIO_S16LSB.\n");
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#endif
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    src = ((const Uint8 *) (cvt->buf + cvt->len_cvt)) - 1;
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    dst = ((Sint16 *) (cvt->buf + cvt->len_cvt * 2)) - 1;
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    for (i = cvt->len_cvt / sizeof (Uint8); i; --i, --src, --dst) {
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        const Sint16 val = (((Sint16) ((*src) ^ 0x80)) << 8);
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        *dst = ((Sint16) SDL_SwapLE16(val));
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    }
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    cvt->len_cvt *= 2;
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    if (cvt->filters[++cvt->filter_index]) {
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        cvt->filters[cvt->filter_index] (cvt, AUDIO_S16LSB);
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    }
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}
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static void SDLCALL
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SDL_Convert_U8_to_U16MSB(SDL_AudioCVT * cvt, SDL_AudioFormat format)
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{
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    int i;
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    const Uint8 *src;
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    Uint16 *dst;
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#if DEBUG_CONVERT
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    fprintf(stderr, "Converting AUDIO_U8 to AUDIO_U16MSB.\n");
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#endif
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    src = ((const Uint8 *) (cvt->buf + cvt->len_cvt)) - 1;
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    dst = ((Uint16 *) (cvt->buf + cvt->len_cvt * 2)) - 1;
1982
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    for (i = cvt->len_cvt / sizeof (Uint8); i; --i, --src, --dst) {
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        const Uint16 val = (((Uint16) *src) << 8);
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        *dst = SDL_SwapBE16(val);
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    }
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    cvt->len_cvt *= 2;
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    if (cvt->filters[++cvt->filter_index]) {
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        cvt->filters[cvt->filter_index] (cvt, AUDIO_U16MSB);
1982
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    }
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}
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static void SDLCALL
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SDL_Convert_U8_to_S16MSB(SDL_AudioCVT * cvt, SDL_AudioFormat format)
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{
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    int i;
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    const Uint8 *src;
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    Sint16 *dst;
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#if DEBUG_CONVERT
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    fprintf(stderr, "Converting AUDIO_U8 to AUDIO_S16MSB.\n");
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#endif
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    src = ((const Uint8 *) (cvt->buf + cvt->len_cvt)) - 1;
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    dst = ((Sint16 *) (cvt->buf + cvt->len_cvt * 2)) - 1;
1982
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    for (i = cvt->len_cvt / sizeof (Uint8); i; --i, --src, --dst) {
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        const Sint16 val = (((Sint16) ((*src) ^ 0x80)) << 8);
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        *dst = ((Sint16) SDL_SwapBE16(val));
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    }
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    cvt->len_cvt *= 2;
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    if (cvt->filters[++cvt->filter_index]) {
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        cvt->filters[cvt->filter_index] (cvt, AUDIO_S16MSB);
1982
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    }
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}
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static void SDLCALL
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SDL_Convert_U8_to_S32LSB(SDL_AudioCVT * cvt, SDL_AudioFormat format)
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{
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    int i;
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    const Uint8 *src;
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    Sint32 *dst;
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#if DEBUG_CONVERT
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    fprintf(stderr, "Converting AUDIO_U8 to AUDIO_S32LSB.\n");
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#endif
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    src = ((const Uint8 *) (cvt->buf + cvt->len_cvt)) - 1;
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    dst = ((Sint32 *) (cvt->buf + cvt->len_cvt * 4)) - 1;
1982
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    for (i = cvt->len_cvt / sizeof (Uint8); i; --i, --src, --dst) {
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        const Sint32 val = (((Sint32) ((*src) ^ 0x80)) << 24);
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        *dst = ((Sint32) SDL_SwapLE32(val));
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   194
    }
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   196
    cvt->len_cvt *= 4;
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    if (cvt->filters[++cvt->filter_index]) {
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        cvt->filters[cvt->filter_index] (cvt, AUDIO_S32LSB);
1982
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   199
    }
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}
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static void SDLCALL
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SDL_Convert_U8_to_S32MSB(SDL_AudioCVT * cvt, SDL_AudioFormat format)
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{
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    int i;
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    const Uint8 *src;
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   207
    Sint32 *dst;
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#if DEBUG_CONVERT
1982
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   210
    fprintf(stderr, "Converting AUDIO_U8 to AUDIO_S32MSB.\n");
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#endif
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    src = ((const Uint8 *) (cvt->buf + cvt->len_cvt)) - 1;
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    dst = ((Sint32 *) (cvt->buf + cvt->len_cvt * 4)) - 1;
1982
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   215
    for (i = cvt->len_cvt / sizeof (Uint8); i; --i, --src, --dst) {
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   216
        const Sint32 val = (((Sint32) ((*src) ^ 0x80)) << 24);
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   217
        *dst = ((Sint32) SDL_SwapBE32(val));
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   218
    }
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   219
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   220
    cvt->len_cvt *= 4;
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   221
    if (cvt->filters[++cvt->filter_index]) {
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   222
        cvt->filters[cvt->filter_index] (cvt, AUDIO_S32MSB);
1982
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   223
    }
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   224
}
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   225
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static void SDLCALL
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   227
SDL_Convert_U8_to_F32LSB(SDL_AudioCVT * cvt, SDL_AudioFormat format)
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{
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   229
    int i;
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   230
    const Uint8 *src;
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   231
    float *dst;
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   232
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   233
#if DEBUG_CONVERT
1982
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   234
    fprintf(stderr, "Converting AUDIO_U8 to AUDIO_F32LSB.\n");
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#endif
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   236
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   237
    src = ((const Uint8 *) (cvt->buf + cvt->len_cvt)) - 1;
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   238
    dst = ((float *) (cvt->buf + cvt->len_cvt * 4)) - 1;
1982
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diff changeset
   239
    for (i = cvt->len_cvt / sizeof (Uint8); i; --i, --src, --dst) {
2011
b2b7154ce016 Fixed broken audio conversions between float and unsigned datatypes.
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diff changeset
   240
        const float val = ((((float) *src) * DIVBY127) - 1.0f);
1982
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   241
        *dst = SDL_SwapFloatLE(val);
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   242
    }
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   243
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   244
    cvt->len_cvt *= 4;
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   245
    if (cvt->filters[++cvt->filter_index]) {
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   246
        cvt->filters[cvt->filter_index] (cvt, AUDIO_F32LSB);
1982
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diff changeset
   247
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
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   248
}
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   249
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   250
static void SDLCALL
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   251
SDL_Convert_U8_to_F32MSB(SDL_AudioCVT * cvt, SDL_AudioFormat format)
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{
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    int i;
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    const Uint8 *src;
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    float *dst;
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#if DEBUG_CONVERT
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    fprintf(stderr, "Converting AUDIO_U8 to AUDIO_F32MSB.\n");
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#endif
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    src = ((const Uint8 *) (cvt->buf + cvt->len_cvt)) - 1;
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    dst = ((float *) (cvt->buf + cvt->len_cvt * 4)) - 1;
1982
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    for (i = cvt->len_cvt / sizeof (Uint8); i; --i, --src, --dst) {
2011
b2b7154ce016 Fixed broken audio conversions between float and unsigned datatypes.
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        const float val = ((((float) *src) * DIVBY127) - 1.0f);
1982
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        *dst = SDL_SwapFloatBE(val);
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    }
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    cvt->len_cvt *= 4;
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    if (cvt->filters[++cvt->filter_index]) {
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        cvt->filters[cvt->filter_index] (cvt, AUDIO_F32MSB);
1982
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    }
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}
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static void SDLCALL
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SDL_Convert_S8_to_U8(SDL_AudioCVT * cvt, SDL_AudioFormat format)
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{
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    int i;
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    const Uint8 *src;
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    Uint8 *dst;
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#if DEBUG_CONVERT
1982
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    fprintf(stderr, "Converting AUDIO_S8 to AUDIO_U8.\n");
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#endif
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    src = (const Uint8 *) cvt->buf;
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    dst = (Uint8 *) cvt->buf;
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    for (i = cvt->len_cvt / sizeof (Uint8); i; --i, ++src, ++dst) {
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        const Uint8 val = ((((Sint8) *src)) ^ 0x80);
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        *dst = val;
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   290
    }
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    if (cvt->filters[++cvt->filter_index]) {
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        cvt->filters[cvt->filter_index] (cvt, AUDIO_U8);
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
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   294
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
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   295
}
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static void SDLCALL
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SDL_Convert_S8_to_U16LSB(SDL_AudioCVT * cvt, SDL_AudioFormat format)
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{
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    int i;
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    const Uint8 *src;
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    Uint16 *dst;
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#if DEBUG_CONVERT
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
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   305
    fprintf(stderr, "Converting AUDIO_S8 to AUDIO_U16LSB.\n");
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#endif
3b4ce57c6215 First shot at new audio data types (int32 and float32).
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    src = ((const Uint8 *) (cvt->buf + cvt->len_cvt)) - 1;
1210d5a28e16 Fixed off-by-one in audio converters, when growing a data type's size.
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    dst = ((Uint16 *) (cvt->buf + cvt->len_cvt * 2)) - 1;
1982
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    for (i = cvt->len_cvt / sizeof (Uint8); i; --i, --src, --dst) {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
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        const Uint16 val = (((Uint16) ((((Sint8) *src)) ^ 0x80)) << 8);
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   312
        *dst = SDL_SwapLE16(val);
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   313
    }
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   314
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   315
    cvt->len_cvt *= 2;
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   316
    if (cvt->filters[++cvt->filter_index]) {
2955
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   317
        cvt->filters[cvt->filter_index] (cvt, AUDIO_U16LSB);
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
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diff changeset
   318
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
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diff changeset
   319
}
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   320
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   321
static void SDLCALL
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diff changeset
   322
SDL_Convert_S8_to_S16LSB(SDL_AudioCVT * cvt, SDL_AudioFormat format)
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   323
{
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diff changeset
   324
    int i;
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diff changeset
   325
    const Uint8 *src;
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diff changeset
   326
    Sint16 *dst;
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diff changeset
   327
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   328
#if DEBUG_CONVERT
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
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parents:
diff changeset
   329
    fprintf(stderr, "Converting AUDIO_S8 to AUDIO_S16LSB.\n");
3b4ce57c6215 First shot at new audio data types (int32 and float32).
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diff changeset
   330
#endif
3b4ce57c6215 First shot at new audio data types (int32 and float32).
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diff changeset
   331
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1210d5a28e16 Fixed off-by-one in audio converters, when growing a data type's size.
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   332
    src = ((const Uint8 *) (cvt->buf + cvt->len_cvt)) - 1;
1210d5a28e16 Fixed off-by-one in audio converters, when growing a data type's size.
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parents: 2955
diff changeset
   333
    dst = ((Sint16 *) (cvt->buf + cvt->len_cvt * 2)) - 1;
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   334
    for (i = cvt->len_cvt / sizeof (Uint8); i; --i, --src, --dst) {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
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parents:
diff changeset
   335
        const Sint16 val = (((Sint16) ((Sint8) *src)) << 8);
3b4ce57c6215 First shot at new audio data types (int32 and float32).
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parents:
diff changeset
   336
        *dst = ((Sint16) SDL_SwapLE16(val));
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   337
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
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parents:
diff changeset
   338
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   339
    cvt->len_cvt *= 2;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
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parents:
diff changeset
   340
    if (cvt->filters[++cvt->filter_index]) {
2955
2692999d5271 Avoid unnecessary assignment in generated audio type converters.
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parents: 2859
diff changeset
   341
        cvt->filters[cvt->filter_index] (cvt, AUDIO_S16LSB);
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   342
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
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parents:
diff changeset
   343
}
3b4ce57c6215 First shot at new audio data types (int32 and float32).
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diff changeset
   344
3b4ce57c6215 First shot at new audio data types (int32 and float32).
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diff changeset
   345
static void SDLCALL
3b4ce57c6215 First shot at new audio data types (int32 and float32).
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parents:
diff changeset
   346
SDL_Convert_S8_to_U16MSB(SDL_AudioCVT * cvt, SDL_AudioFormat format)
3b4ce57c6215 First shot at new audio data types (int32 and float32).
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parents:
diff changeset
   347
{
3b4ce57c6215 First shot at new audio data types (int32 and float32).
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parents:
diff changeset
   348
    int i;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
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parents:
diff changeset
   349
    const Uint8 *src;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   350
    Uint16 *dst;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
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diff changeset
   351
3032
77c3e67f0740 Fixed Visual C++ build
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diff changeset
   352
#if DEBUG_CONVERT
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   353
    fprintf(stderr, "Converting AUDIO_S8 to AUDIO_U16MSB.\n");
3b4ce57c6215 First shot at new audio data types (int32 and float32).
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parents:
diff changeset
   354
#endif
3b4ce57c6215 First shot at new audio data types (int32 and float32).
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parents:
diff changeset
   355
2956
1210d5a28e16 Fixed off-by-one in audio converters, when growing a data type's size.
Ryan C. Gordon <icculus@icculus.org>
parents: 2955
diff changeset
   356
    src = ((const Uint8 *) (cvt->buf + cvt->len_cvt)) - 1;
1210d5a28e16 Fixed off-by-one in audio converters, when growing a data type's size.
Ryan C. Gordon <icculus@icculus.org>
parents: 2955
diff changeset
   357
    dst = ((Uint16 *) (cvt->buf + cvt->len_cvt * 2)) - 1;
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   358
    for (i = cvt->len_cvt / sizeof (Uint8); i; --i, --src, --dst) {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   359
        const Uint16 val = (((Uint16) ((((Sint8) *src)) ^ 0x80)) << 8);
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   360
        *dst = SDL_SwapBE16(val);
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   361
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   362
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   363
    cvt->len_cvt *= 2;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   364
    if (cvt->filters[++cvt->filter_index]) {
2955
2692999d5271 Avoid unnecessary assignment in generated audio type converters.
Ryan C. Gordon <icculus@icculus.org>
parents: 2859
diff changeset
   365
        cvt->filters[cvt->filter_index] (cvt, AUDIO_U16MSB);
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   366
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   367
}
3b4ce57c6215 First shot at new audio data types (int32 and float32).
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parents:
diff changeset
   368
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   369
static void SDLCALL
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   370
SDL_Convert_S8_to_S16MSB(SDL_AudioCVT * cvt, SDL_AudioFormat format)
3b4ce57c6215 First shot at new audio data types (int32 and float32).
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parents:
diff changeset
   371
{
3b4ce57c6215 First shot at new audio data types (int32 and float32).
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parents:
diff changeset
   372
    int i;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   373
    const Uint8 *src;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   374
    Sint16 *dst;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   375
3032
77c3e67f0740 Fixed Visual C++ build
Sam Lantinga <slouken@libsdl.org>
parents: 3021
diff changeset
   376
#if DEBUG_CONVERT
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   377
    fprintf(stderr, "Converting AUDIO_S8 to AUDIO_S16MSB.\n");
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   378
#endif
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   379
2956
1210d5a28e16 Fixed off-by-one in audio converters, when growing a data type's size.
Ryan C. Gordon <icculus@icculus.org>
parents: 2955
diff changeset
   380
    src = ((const Uint8 *) (cvt->buf + cvt->len_cvt)) - 1;
1210d5a28e16 Fixed off-by-one in audio converters, when growing a data type's size.
Ryan C. Gordon <icculus@icculus.org>
parents: 2955
diff changeset
   381
    dst = ((Sint16 *) (cvt->buf + cvt->len_cvt * 2)) - 1;
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   382
    for (i = cvt->len_cvt / sizeof (Uint8); i; --i, --src, --dst) {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   383
        const Sint16 val = (((Sint16) ((Sint8) *src)) << 8);
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   384
        *dst = ((Sint16) SDL_SwapBE16(val));
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   385
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   386
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   387
    cvt->len_cvt *= 2;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   388
    if (cvt->filters[++cvt->filter_index]) {
2955
2692999d5271 Avoid unnecessary assignment in generated audio type converters.
Ryan C. Gordon <icculus@icculus.org>
parents: 2859
diff changeset
   389
        cvt->filters[cvt->filter_index] (cvt, AUDIO_S16MSB);
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   390
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   391
}
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   392
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   393
static void SDLCALL
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   394
SDL_Convert_S8_to_S32LSB(SDL_AudioCVT * cvt, SDL_AudioFormat format)
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   395
{
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   396
    int i;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   397
    const Uint8 *src;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   398
    Sint32 *dst;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   399
3032
77c3e67f0740 Fixed Visual C++ build
Sam Lantinga <slouken@libsdl.org>
parents: 3021
diff changeset
   400
#if DEBUG_CONVERT
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   401
    fprintf(stderr, "Converting AUDIO_S8 to AUDIO_S32LSB.\n");
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   402
#endif
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   403
2956
1210d5a28e16 Fixed off-by-one in audio converters, when growing a data type's size.
Ryan C. Gordon <icculus@icculus.org>
parents: 2955
diff changeset
   404
    src = ((const Uint8 *) (cvt->buf + cvt->len_cvt)) - 1;
1210d5a28e16 Fixed off-by-one in audio converters, when growing a data type's size.
Ryan C. Gordon <icculus@icculus.org>
parents: 2955
diff changeset
   405
    dst = ((Sint32 *) (cvt->buf + cvt->len_cvt * 4)) - 1;
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   406
    for (i = cvt->len_cvt / sizeof (Uint8); i; --i, --src, --dst) {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   407
        const Sint32 val = (((Sint32) ((Sint8) *src)) << 24);
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   408
        *dst = ((Sint32) SDL_SwapLE32(val));
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   409
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   410
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   411
    cvt->len_cvt *= 4;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   412
    if (cvt->filters[++cvt->filter_index]) {
2955
2692999d5271 Avoid unnecessary assignment in generated audio type converters.
Ryan C. Gordon <icculus@icculus.org>
parents: 2859
diff changeset
   413
        cvt->filters[cvt->filter_index] (cvt, AUDIO_S32LSB);
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   414
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   415
}
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   416
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   417
static void SDLCALL
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   418
SDL_Convert_S8_to_S32MSB(SDL_AudioCVT * cvt, SDL_AudioFormat format)
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   419
{
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   420
    int i;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   421
    const Uint8 *src;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   422
    Sint32 *dst;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   423
3032
77c3e67f0740 Fixed Visual C++ build
Sam Lantinga <slouken@libsdl.org>
parents: 3021
diff changeset
   424
#if DEBUG_CONVERT
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   425
    fprintf(stderr, "Converting AUDIO_S8 to AUDIO_S32MSB.\n");
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   426
#endif
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   427
2956
1210d5a28e16 Fixed off-by-one in audio converters, when growing a data type's size.
Ryan C. Gordon <icculus@icculus.org>
parents: 2955
diff changeset
   428
    src = ((const Uint8 *) (cvt->buf + cvt->len_cvt)) - 1;
1210d5a28e16 Fixed off-by-one in audio converters, when growing a data type's size.
Ryan C. Gordon <icculus@icculus.org>
parents: 2955
diff changeset
   429
    dst = ((Sint32 *) (cvt->buf + cvt->len_cvt * 4)) - 1;
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   430
    for (i = cvt->len_cvt / sizeof (Uint8); i; --i, --src, --dst) {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   431
        const Sint32 val = (((Sint32) ((Sint8) *src)) << 24);
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   432
        *dst = ((Sint32) SDL_SwapBE32(val));
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   433
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   434
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   435
    cvt->len_cvt *= 4;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   436
    if (cvt->filters[++cvt->filter_index]) {
2955
2692999d5271 Avoid unnecessary assignment in generated audio type converters.
Ryan C. Gordon <icculus@icculus.org>
parents: 2859
diff changeset
   437
        cvt->filters[cvt->filter_index] (cvt, AUDIO_S32MSB);
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   438
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   439
}
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   440
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   441
static void SDLCALL
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   442
SDL_Convert_S8_to_F32LSB(SDL_AudioCVT * cvt, SDL_AudioFormat format)
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   443
{
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   444
    int i;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   445
    const Uint8 *src;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   446
    float *dst;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   447
3032
77c3e67f0740 Fixed Visual C++ build
Sam Lantinga <slouken@libsdl.org>
parents: 3021
diff changeset
   448
#if DEBUG_CONVERT
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   449
    fprintf(stderr, "Converting AUDIO_S8 to AUDIO_F32LSB.\n");
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   450
#endif
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   451
2956
1210d5a28e16 Fixed off-by-one in audio converters, when growing a data type's size.
Ryan C. Gordon <icculus@icculus.org>
parents: 2955
diff changeset
   452
    src = ((const Uint8 *) (cvt->buf + cvt->len_cvt)) - 1;
1210d5a28e16 Fixed off-by-one in audio converters, when growing a data type's size.
Ryan C. Gordon <icculus@icculus.org>
parents: 2955
diff changeset
   453
    dst = ((float *) (cvt->buf + cvt->len_cvt * 4)) - 1;
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   454
    for (i = cvt->len_cvt / sizeof (Uint8); i; --i, --src, --dst) {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   455
        const float val = (((float) ((Sint8) *src)) * DIVBY127);
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   456
        *dst = SDL_SwapFloatLE(val);
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   457
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   458
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   459
    cvt->len_cvt *= 4;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   460
    if (cvt->filters[++cvt->filter_index]) {
2955
2692999d5271 Avoid unnecessary assignment in generated audio type converters.
Ryan C. Gordon <icculus@icculus.org>
parents: 2859
diff changeset
   461
        cvt->filters[cvt->filter_index] (cvt, AUDIO_F32LSB);
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   462
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   463
}
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   464
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   465
static void SDLCALL
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   466
SDL_Convert_S8_to_F32MSB(SDL_AudioCVT * cvt, SDL_AudioFormat format)
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   467
{
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   468
    int i;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   469
    const Uint8 *src;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   470
    float *dst;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   471
3032
77c3e67f0740 Fixed Visual C++ build
Sam Lantinga <slouken@libsdl.org>
parents: 3021
diff changeset
   472
#if DEBUG_CONVERT
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   473
    fprintf(stderr, "Converting AUDIO_S8 to AUDIO_F32MSB.\n");
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   474
#endif
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   475
2956
1210d5a28e16 Fixed off-by-one in audio converters, when growing a data type's size.
Ryan C. Gordon <icculus@icculus.org>
parents: 2955
diff changeset
   476
    src = ((const Uint8 *) (cvt->buf + cvt->len_cvt)) - 1;
1210d5a28e16 Fixed off-by-one in audio converters, when growing a data type's size.
Ryan C. Gordon <icculus@icculus.org>
parents: 2955
diff changeset
   477
    dst = ((float *) (cvt->buf + cvt->len_cvt * 4)) - 1;
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   478
    for (i = cvt->len_cvt / sizeof (Uint8); i; --i, --src, --dst) {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   479
        const float val = (((float) ((Sint8) *src)) * DIVBY127);
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   480
        *dst = SDL_SwapFloatBE(val);
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   481
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   482
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   483
    cvt->len_cvt *= 4;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   484
    if (cvt->filters[++cvt->filter_index]) {
2955
2692999d5271 Avoid unnecessary assignment in generated audio type converters.
Ryan C. Gordon <icculus@icculus.org>
parents: 2859
diff changeset
   485
        cvt->filters[cvt->filter_index] (cvt, AUDIO_F32MSB);
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   486
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   487
}
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   488
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   489
static void SDLCALL
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   490
SDL_Convert_U16LSB_to_U8(SDL_AudioCVT * cvt, SDL_AudioFormat format)
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   491
{
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   492
    int i;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   493
    const Uint16 *src;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   494
    Uint8 *dst;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   495
3032
77c3e67f0740 Fixed Visual C++ build
Sam Lantinga <slouken@libsdl.org>
parents: 3021
diff changeset
   496
#if DEBUG_CONVERT
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   497
    fprintf(stderr, "Converting AUDIO_U16LSB to AUDIO_U8.\n");
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   498
#endif
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   499
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   500
    src = (const Uint16 *) cvt->buf;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   501
    dst = (Uint8 *) cvt->buf;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   502
    for (i = cvt->len_cvt / sizeof (Uint16); i; --i, ++src, ++dst) {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   503
        const Uint8 val = ((Uint8) (SDL_SwapLE16(*src) >> 8));
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   504
        *dst = val;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   505
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   506
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   507
    cvt->len_cvt /= 2;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   508
    if (cvt->filters[++cvt->filter_index]) {
2955
2692999d5271 Avoid unnecessary assignment in generated audio type converters.
Ryan C. Gordon <icculus@icculus.org>
parents: 2859
diff changeset
   509
        cvt->filters[cvt->filter_index] (cvt, AUDIO_U8);
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   510
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   511
}
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   512
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   513
static void SDLCALL
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   514
SDL_Convert_U16LSB_to_S8(SDL_AudioCVT * cvt, SDL_AudioFormat format)
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   515
{
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   516
    int i;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   517
    const Uint16 *src;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   518
    Sint8 *dst;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   519
3032
77c3e67f0740 Fixed Visual C++ build
Sam Lantinga <slouken@libsdl.org>
parents: 3021
diff changeset
   520
#if DEBUG_CONVERT
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   521
    fprintf(stderr, "Converting AUDIO_U16LSB to AUDIO_S8.\n");
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   522
#endif
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   523
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   524
    src = (const Uint16 *) cvt->buf;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   525
    dst = (Sint8 *) cvt->buf;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   526
    for (i = cvt->len_cvt / sizeof (Uint16); i; --i, ++src, ++dst) {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   527
        const Sint8 val = ((Sint8) (((SDL_SwapLE16(*src)) ^ 0x8000) >> 8));
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   528
        *dst = ((Sint8) val);
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   529
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   530
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   531
    cvt->len_cvt /= 2;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   532
    if (cvt->filters[++cvt->filter_index]) {
2955
2692999d5271 Avoid unnecessary assignment in generated audio type converters.
Ryan C. Gordon <icculus@icculus.org>
parents: 2859
diff changeset
   533
        cvt->filters[cvt->filter_index] (cvt, AUDIO_S8);
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   534
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   535
}
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   536
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   537
static void SDLCALL
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   538
SDL_Convert_U16LSB_to_S16LSB(SDL_AudioCVT * cvt, SDL_AudioFormat format)
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   539
{
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   540
    int i;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   541
    const Uint16 *src;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   542
    Sint16 *dst;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   543
3032
77c3e67f0740 Fixed Visual C++ build
Sam Lantinga <slouken@libsdl.org>
parents: 3021
diff changeset
   544
#if DEBUG_CONVERT
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   545
    fprintf(stderr, "Converting AUDIO_U16LSB to AUDIO_S16LSB.\n");
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   546
#endif
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   547
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   548
    src = (const Uint16 *) cvt->buf;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   549
    dst = (Sint16 *) cvt->buf;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   550
    for (i = cvt->len_cvt / sizeof (Uint16); i; --i, ++src, ++dst) {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   551
        const Sint16 val = ((SDL_SwapLE16(*src)) ^ 0x8000);
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   552
        *dst = ((Sint16) SDL_SwapLE16(val));
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   553
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   554
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   555
    if (cvt->filters[++cvt->filter_index]) {
2955
2692999d5271 Avoid unnecessary assignment in generated audio type converters.
Ryan C. Gordon <icculus@icculus.org>
parents: 2859
diff changeset
   556
        cvt->filters[cvt->filter_index] (cvt, AUDIO_S16LSB);
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   557
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   558
}
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   559
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   560
static void SDLCALL
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   561
SDL_Convert_U16LSB_to_U16MSB(SDL_AudioCVT * cvt, SDL_AudioFormat format)
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   562
{
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   563
    int i;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   564
    const Uint16 *src;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   565
    Uint16 *dst;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   566
3032
77c3e67f0740 Fixed Visual C++ build
Sam Lantinga <slouken@libsdl.org>
parents: 3021
diff changeset
   567
#if DEBUG_CONVERT
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   568
    fprintf(stderr, "Converting AUDIO_U16LSB to AUDIO_U16MSB.\n");
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   569
#endif
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   570
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   571
    src = (const Uint16 *) cvt->buf;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   572
    dst = (Uint16 *) cvt->buf;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   573
    for (i = cvt->len_cvt / sizeof (Uint16); i; --i, ++src, ++dst) {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   574
        const Uint16 val = SDL_SwapLE16(*src);
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   575
        *dst = SDL_SwapBE16(val);
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   576
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   577
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   578
    if (cvt->filters[++cvt->filter_index]) {
2955
2692999d5271 Avoid unnecessary assignment in generated audio type converters.
Ryan C. Gordon <icculus@icculus.org>
parents: 2859
diff changeset
   579
        cvt->filters[cvt->filter_index] (cvt, AUDIO_U16MSB);
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   580
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   581
}
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   582
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   583
static void SDLCALL
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   584
SDL_Convert_U16LSB_to_S16MSB(SDL_AudioCVT * cvt, SDL_AudioFormat format)
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   585
{
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   586
    int i;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   587
    const Uint16 *src;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   588
    Sint16 *dst;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   589
3032
77c3e67f0740 Fixed Visual C++ build
Sam Lantinga <slouken@libsdl.org>
parents: 3021
diff changeset
   590
#if DEBUG_CONVERT
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   591
    fprintf(stderr, "Converting AUDIO_U16LSB to AUDIO_S16MSB.\n");
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   592
#endif
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   593
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   594
    src = (const Uint16 *) cvt->buf;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   595
    dst = (Sint16 *) cvt->buf;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   596
    for (i = cvt->len_cvt / sizeof (Uint16); i; --i, ++src, ++dst) {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   597
        const Sint16 val = ((SDL_SwapLE16(*src)) ^ 0x8000);
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   598
        *dst = ((Sint16) SDL_SwapBE16(val));
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   599
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   600
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   601
    if (cvt->filters[++cvt->filter_index]) {
2955
2692999d5271 Avoid unnecessary assignment in generated audio type converters.
Ryan C. Gordon <icculus@icculus.org>
parents: 2859
diff changeset
   602
        cvt->filters[cvt->filter_index] (cvt, AUDIO_S16MSB);
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   603
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   604
}
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   605
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   606
static void SDLCALL
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   607
SDL_Convert_U16LSB_to_S32LSB(SDL_AudioCVT * cvt, SDL_AudioFormat format)
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   608
{
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   609
    int i;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   610
    const Uint16 *src;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   611
    Sint32 *dst;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   612
3032
77c3e67f0740 Fixed Visual C++ build
Sam Lantinga <slouken@libsdl.org>
parents: 3021
diff changeset
   613
#if DEBUG_CONVERT
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   614
    fprintf(stderr, "Converting AUDIO_U16LSB to AUDIO_S32LSB.\n");
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   615
#endif
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   616
2956
1210d5a28e16 Fixed off-by-one in audio converters, when growing a data type's size.
Ryan C. Gordon <icculus@icculus.org>
parents: 2955
diff changeset
   617
    src = ((const Uint16 *) (cvt->buf + cvt->len_cvt)) - 1;
1210d5a28e16 Fixed off-by-one in audio converters, when growing a data type's size.
Ryan C. Gordon <icculus@icculus.org>
parents: 2955
diff changeset
   618
    dst = ((Sint32 *) (cvt->buf + cvt->len_cvt * 2)) - 1;
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   619
    for (i = cvt->len_cvt / sizeof (Uint16); i; --i, --src, --dst) {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   620
        const Sint32 val = (((Sint32) ((SDL_SwapLE16(*src)) ^ 0x8000)) << 16);
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   621
        *dst = ((Sint32) SDL_SwapLE32(val));
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   622
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   623
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   624
    cvt->len_cvt *= 2;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   625
    if (cvt->filters[++cvt->filter_index]) {
2955
2692999d5271 Avoid unnecessary assignment in generated audio type converters.
Ryan C. Gordon <icculus@icculus.org>
parents: 2859
diff changeset
   626
        cvt->filters[cvt->filter_index] (cvt, AUDIO_S32LSB);
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   627
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   628
}
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   629
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   630
static void SDLCALL
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   631
SDL_Convert_U16LSB_to_S32MSB(SDL_AudioCVT * cvt, SDL_AudioFormat format)
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   632
{
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   633
    int i;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   634
    const Uint16 *src;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   635
    Sint32 *dst;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   636
3032
77c3e67f0740 Fixed Visual C++ build
Sam Lantinga <slouken@libsdl.org>
parents: 3021
diff changeset
   637
#if DEBUG_CONVERT
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   638
    fprintf(stderr, "Converting AUDIO_U16LSB to AUDIO_S32MSB.\n");
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   639
#endif
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   640
2956
1210d5a28e16 Fixed off-by-one in audio converters, when growing a data type's size.
Ryan C. Gordon <icculus@icculus.org>
parents: 2955
diff changeset
   641
    src = ((const Uint16 *) (cvt->buf + cvt->len_cvt)) - 1;
1210d5a28e16 Fixed off-by-one in audio converters, when growing a data type's size.
Ryan C. Gordon <icculus@icculus.org>
parents: 2955
diff changeset
   642
    dst = ((Sint32 *) (cvt->buf + cvt->len_cvt * 2)) - 1;
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   643
    for (i = cvt->len_cvt / sizeof (Uint16); i; --i, --src, --dst) {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   644
        const Sint32 val = (((Sint32) ((SDL_SwapLE16(*src)) ^ 0x8000)) << 16);
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   645
        *dst = ((Sint32) SDL_SwapBE32(val));
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   646
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   647
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   648
    cvt->len_cvt *= 2;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   649
    if (cvt->filters[++cvt->filter_index]) {
2955
2692999d5271 Avoid unnecessary assignment in generated audio type converters.
Ryan C. Gordon <icculus@icculus.org>
parents: 2859
diff changeset
   650
        cvt->filters[cvt->filter_index] (cvt, AUDIO_S32MSB);
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   651
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   652
}
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   653
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   654
static void SDLCALL
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   655
SDL_Convert_U16LSB_to_F32LSB(SDL_AudioCVT * cvt, SDL_AudioFormat format)
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   656
{
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   657
    int i;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   658
    const Uint16 *src;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   659
    float *dst;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   660
3032
77c3e67f0740 Fixed Visual C++ build
Sam Lantinga <slouken@libsdl.org>
parents: 3021
diff changeset
   661
#if DEBUG_CONVERT
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   662
    fprintf(stderr, "Converting AUDIO_U16LSB to AUDIO_F32LSB.\n");
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   663
#endif
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   664
2956
1210d5a28e16 Fixed off-by-one in audio converters, when growing a data type's size.
Ryan C. Gordon <icculus@icculus.org>
parents: 2955
diff changeset
   665
    src = ((const Uint16 *) (cvt->buf + cvt->len_cvt)) - 1;
1210d5a28e16 Fixed off-by-one in audio converters, when growing a data type's size.
Ryan C. Gordon <icculus@icculus.org>
parents: 2955
diff changeset
   666
    dst = ((float *) (cvt->buf + cvt->len_cvt * 2)) - 1;
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   667
    for (i = cvt->len_cvt / sizeof (Uint16); i; --i, --src, --dst) {
2011
b2b7154ce016 Fixed broken audio conversions between float and unsigned datatypes.
Ryan C. Gordon <icculus@icculus.org>
parents: 1985
diff changeset
   668
        const float val = ((((float) SDL_SwapLE16(*src)) * DIVBY32767) - 1.0f);
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   669
        *dst = SDL_SwapFloatLE(val);
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   670
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   671
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   672
    cvt->len_cvt *= 2;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   673
    if (cvt->filters[++cvt->filter_index]) {
2955
2692999d5271 Avoid unnecessary assignment in generated audio type converters.
Ryan C. Gordon <icculus@icculus.org>
parents: 2859
diff changeset
   674
        cvt->filters[cvt->filter_index] (cvt, AUDIO_F32LSB);
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   675
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   676
}
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   677
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   678
static void SDLCALL
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   679
SDL_Convert_U16LSB_to_F32MSB(SDL_AudioCVT * cvt, SDL_AudioFormat format)
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   680
{
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   681
    int i;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   682
    const Uint16 *src;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   683
    float *dst;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   684
3032
77c3e67f0740 Fixed Visual C++ build
Sam Lantinga <slouken@libsdl.org>
parents: 3021
diff changeset
   685
#if DEBUG_CONVERT
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   686
    fprintf(stderr, "Converting AUDIO_U16LSB to AUDIO_F32MSB.\n");
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   687
#endif
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   688
2956
1210d5a28e16 Fixed off-by-one in audio converters, when growing a data type's size.
Ryan C. Gordon <icculus@icculus.org>
parents: 2955
diff changeset
   689
    src = ((const Uint16 *) (cvt->buf + cvt->len_cvt)) - 1;
1210d5a28e16 Fixed off-by-one in audio converters, when growing a data type's size.
Ryan C. Gordon <icculus@icculus.org>
parents: 2955
diff changeset
   690
    dst = ((float *) (cvt->buf + cvt->len_cvt * 2)) - 1;
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   691
    for (i = cvt->len_cvt / sizeof (Uint16); i; --i, --src, --dst) {
2011
b2b7154ce016 Fixed broken audio conversions between float and unsigned datatypes.
Ryan C. Gordon <icculus@icculus.org>
parents: 1985
diff changeset
   692
        const float val = ((((float) SDL_SwapLE16(*src)) * DIVBY32767) - 1.0f);
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   693
        *dst = SDL_SwapFloatBE(val);
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   694
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   695
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   696
    cvt->len_cvt *= 2;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   697
    if (cvt->filters[++cvt->filter_index]) {
2955
2692999d5271 Avoid unnecessary assignment in generated audio type converters.
Ryan C. Gordon <icculus@icculus.org>
parents: 2859
diff changeset
   698
        cvt->filters[cvt->filter_index] (cvt, AUDIO_F32MSB);
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   699
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   700
}
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   701
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   702
static void SDLCALL
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   703
SDL_Convert_S16LSB_to_U8(SDL_AudioCVT * cvt, SDL_AudioFormat format)
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   704
{
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   705
    int i;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   706
    const Uint16 *src;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   707
    Uint8 *dst;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   708
3032
77c3e67f0740 Fixed Visual C++ build
Sam Lantinga <slouken@libsdl.org>
parents: 3021
diff changeset
   709
#if DEBUG_CONVERT
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   710
    fprintf(stderr, "Converting AUDIO_S16LSB to AUDIO_U8.\n");
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   711
#endif
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   712
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   713
    src = (const Uint16 *) cvt->buf;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   714
    dst = (Uint8 *) cvt->buf;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   715
    for (i = cvt->len_cvt / sizeof (Uint16); i; --i, ++src, ++dst) {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   716
        const Uint8 val = ((Uint8) (((((Sint16) SDL_SwapLE16(*src))) ^ 0x8000) >> 8));
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   717
        *dst = val;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   718
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   719
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   720
    cvt->len_cvt /= 2;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   721
    if (cvt->filters[++cvt->filter_index]) {
2955
2692999d5271 Avoid unnecessary assignment in generated audio type converters.
Ryan C. Gordon <icculus@icculus.org>
parents: 2859
diff changeset
   722
        cvt->filters[cvt->filter_index] (cvt, AUDIO_U8);
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   723
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   724
}
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   725
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   726
static void SDLCALL
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   727
SDL_Convert_S16LSB_to_S8(SDL_AudioCVT * cvt, SDL_AudioFormat format)
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   728
{
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   729
    int i;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   730
    const Uint16 *src;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   731
    Sint8 *dst;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   732
3032
77c3e67f0740 Fixed Visual C++ build
Sam Lantinga <slouken@libsdl.org>
parents: 3021
diff changeset
   733
#if DEBUG_CONVERT
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   734
    fprintf(stderr, "Converting AUDIO_S16LSB to AUDIO_S8.\n");
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   735
#endif
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   736
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   737
    src = (const Uint16 *) cvt->buf;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   738
    dst = (Sint8 *) cvt->buf;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   739
    for (i = cvt->len_cvt / sizeof (Uint16); i; --i, ++src, ++dst) {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   740
        const Sint8 val = ((Sint8) (((Sint16) SDL_SwapLE16(*src)) >> 8));
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   741
        *dst = ((Sint8) val);
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   742
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   743
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   744
    cvt->len_cvt /= 2;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   745
    if (cvt->filters[++cvt->filter_index]) {
2955
2692999d5271 Avoid unnecessary assignment in generated audio type converters.
Ryan C. Gordon <icculus@icculus.org>
parents: 2859
diff changeset
   746
        cvt->filters[cvt->filter_index] (cvt, AUDIO_S8);
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   747
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   748
}
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   749
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   750
static void SDLCALL
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   751
SDL_Convert_S16LSB_to_U16LSB(SDL_AudioCVT * cvt, SDL_AudioFormat format)
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   752
{
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   753
    int i;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   754
    const Uint16 *src;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   755
    Uint16 *dst;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   756
3032
77c3e67f0740 Fixed Visual C++ build
Sam Lantinga <slouken@libsdl.org>
parents: 3021
diff changeset
   757
#if DEBUG_CONVERT
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   758
    fprintf(stderr, "Converting AUDIO_S16LSB to AUDIO_U16LSB.\n");
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   759
#endif
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   760
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   761
    src = (const Uint16 *) cvt->buf;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   762
    dst = (Uint16 *) cvt->buf;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   763
    for (i = cvt->len_cvt / sizeof (Uint16); i; --i, ++src, ++dst) {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   764
        const Uint16 val = ((((Sint16) SDL_SwapLE16(*src))) ^ 0x8000);
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   765
        *dst = SDL_SwapLE16(val);
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   766
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   767
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   768
    if (cvt->filters[++cvt->filter_index]) {
2955
2692999d5271 Avoid unnecessary assignment in generated audio type converters.
Ryan C. Gordon <icculus@icculus.org>
parents: 2859
diff changeset
   769
        cvt->filters[cvt->filter_index] (cvt, AUDIO_U16LSB);
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   770
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   771
}
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   772
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   773
static void SDLCALL
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   774
SDL_Convert_S16LSB_to_U16MSB(SDL_AudioCVT * cvt, SDL_AudioFormat format)
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   775
{
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   776
    int i;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   777
    const Uint16 *src;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   778
    Uint16 *dst;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   779
3032
77c3e67f0740 Fixed Visual C++ build
Sam Lantinga <slouken@libsdl.org>
parents: 3021
diff changeset
   780
#if DEBUG_CONVERT
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   781
    fprintf(stderr, "Converting AUDIO_S16LSB to AUDIO_U16MSB.\n");
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   782
#endif
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   783
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   784
    src = (const Uint16 *) cvt->buf;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   785
    dst = (Uint16 *) cvt->buf;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   786
    for (i = cvt->len_cvt / sizeof (Uint16); i; --i, ++src, ++dst) {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   787
        const Uint16 val = ((((Sint16) SDL_SwapLE16(*src))) ^ 0x8000);
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   788
        *dst = SDL_SwapBE16(val);
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   789
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   790
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   791
    if (cvt->filters[++cvt->filter_index]) {
2955
2692999d5271 Avoid unnecessary assignment in generated audio type converters.
Ryan C. Gordon <icculus@icculus.org>
parents: 2859
diff changeset
   792
        cvt->filters[cvt->filter_index] (cvt, AUDIO_U16MSB);
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   793
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   794
}
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   795
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   796
static void SDLCALL
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   797
SDL_Convert_S16LSB_to_S16MSB(SDL_AudioCVT * cvt, SDL_AudioFormat format)
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   798
{
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   799
    int i;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   800
    const Uint16 *src;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   801
    Sint16 *dst;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   802
3032
77c3e67f0740 Fixed Visual C++ build
Sam Lantinga <slouken@libsdl.org>
parents: 3021
diff changeset
   803
#if DEBUG_CONVERT
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   804
    fprintf(stderr, "Converting AUDIO_S16LSB to AUDIO_S16MSB.\n");
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   805
#endif
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   806
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   807
    src = (const Uint16 *) cvt->buf;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   808
    dst = (Sint16 *) cvt->buf;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   809
    for (i = cvt->len_cvt / sizeof (Uint16); i; --i, ++src, ++dst) {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   810
        const Sint16 val = ((Sint16) SDL_SwapLE16(*src));
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   811
        *dst = ((Sint16) SDL_SwapBE16(val));
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   812
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   813
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   814
    if (cvt->filters[++cvt->filter_index]) {
2955
2692999d5271 Avoid unnecessary assignment in generated audio type converters.
Ryan C. Gordon <icculus@icculus.org>
parents: 2859
diff changeset
   815
        cvt->filters[cvt->filter_index] (cvt, AUDIO_S16MSB);
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   816
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   817
}
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   818
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   819
static void SDLCALL
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   820
SDL_Convert_S16LSB_to_S32LSB(SDL_AudioCVT * cvt, SDL_AudioFormat format)
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   821
{
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   822
    int i;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   823
    const Uint16 *src;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   824
    Sint32 *dst;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   825
3032
77c3e67f0740 Fixed Visual C++ build
Sam Lantinga <slouken@libsdl.org>
parents: 3021
diff changeset
   826
#if DEBUG_CONVERT
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   827
    fprintf(stderr, "Converting AUDIO_S16LSB to AUDIO_S32LSB.\n");
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   828
#endif
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   829
2956
1210d5a28e16 Fixed off-by-one in audio converters, when growing a data type's size.
Ryan C. Gordon <icculus@icculus.org>
parents: 2955
diff changeset
   830
    src = ((const Uint16 *) (cvt->buf + cvt->len_cvt)) - 1;
1210d5a28e16 Fixed off-by-one in audio converters, when growing a data type's size.
Ryan C. Gordon <icculus@icculus.org>
parents: 2955
diff changeset
   831
    dst = ((Sint32 *) (cvt->buf + cvt->len_cvt * 2)) - 1;
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   832
    for (i = cvt->len_cvt / sizeof (Uint16); i; --i, --src, --dst) {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   833
        const Sint32 val = (((Sint32) ((Sint16) SDL_SwapLE16(*src))) << 16);
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   834
        *dst = ((Sint32) SDL_SwapLE32(val));
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   835
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   836
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   837
    cvt->len_cvt *= 2;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   838
    if (cvt->filters[++cvt->filter_index]) {
2955
2692999d5271 Avoid unnecessary assignment in generated audio type converters.
Ryan C. Gordon <icculus@icculus.org>
parents: 2859
diff changeset
   839
        cvt->filters[cvt->filter_index] (cvt, AUDIO_S32LSB);
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   840
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   841
}
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   842
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   843
static void SDLCALL
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   844
SDL_Convert_S16LSB_to_S32MSB(SDL_AudioCVT * cvt, SDL_AudioFormat format)
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   845
{
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   846
    int i;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   847
    const Uint16 *src;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   848
    Sint32 *dst;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   849
3032
77c3e67f0740 Fixed Visual C++ build
Sam Lantinga <slouken@libsdl.org>
parents: 3021
diff changeset
   850
#if DEBUG_CONVERT
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   851
    fprintf(stderr, "Converting AUDIO_S16LSB to AUDIO_S32MSB.\n");
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   852
#endif
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   853
2956
1210d5a28e16 Fixed off-by-one in audio converters, when growing a data type's size.
Ryan C. Gordon <icculus@icculus.org>
parents: 2955
diff changeset
   854
    src = ((const Uint16 *) (cvt->buf + cvt->len_cvt)) - 1;
1210d5a28e16 Fixed off-by-one in audio converters, when growing a data type's size.
Ryan C. Gordon <icculus@icculus.org>
parents: 2955
diff changeset
   855
    dst = ((Sint32 *) (cvt->buf + cvt->len_cvt * 2)) - 1;
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   856
    for (i = cvt->len_cvt / sizeof (Uint16); i; --i, --src, --dst) {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   857
        const Sint32 val = (((Sint32) ((Sint16) SDL_SwapLE16(*src))) << 16);
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   858
        *dst = ((Sint32) SDL_SwapBE32(val));
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   859
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   860
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   861
    cvt->len_cvt *= 2;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   862
    if (cvt->filters[++cvt->filter_index]) {
2955
2692999d5271 Avoid unnecessary assignment in generated audio type converters.
Ryan C. Gordon <icculus@icculus.org>
parents: 2859
diff changeset
   863
        cvt->filters[cvt->filter_index] (cvt, AUDIO_S32MSB);
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   864
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   865
}
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   866
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   867
static void SDLCALL
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   868
SDL_Convert_S16LSB_to_F32LSB(SDL_AudioCVT * cvt, SDL_AudioFormat format)
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   869
{
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   870
    int i;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   871
    const Uint16 *src;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   872
    float *dst;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   873
3032
77c3e67f0740 Fixed Visual C++ build
Sam Lantinga <slouken@libsdl.org>
parents: 3021
diff changeset
   874
#if DEBUG_CONVERT
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   875
    fprintf(stderr, "Converting AUDIO_S16LSB to AUDIO_F32LSB.\n");
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   876
#endif
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   877
2956
1210d5a28e16 Fixed off-by-one in audio converters, when growing a data type's size.
Ryan C. Gordon <icculus@icculus.org>
parents: 2955
diff changeset
   878
    src = ((const Uint16 *) (cvt->buf + cvt->len_cvt)) - 1;
1210d5a28e16 Fixed off-by-one in audio converters, when growing a data type's size.
Ryan C. Gordon <icculus@icculus.org>
parents: 2955
diff changeset
   879
    dst = ((float *) (cvt->buf + cvt->len_cvt * 2)) - 1;
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   880
    for (i = cvt->len_cvt / sizeof (Uint16); i; --i, --src, --dst) {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   881
        const float val = (((float) ((Sint16) SDL_SwapLE16(*src))) * DIVBY32767);
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   882
        *dst = SDL_SwapFloatLE(val);
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   883
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   884
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   885
    cvt->len_cvt *= 2;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   886
    if (cvt->filters[++cvt->filter_index]) {
2955
2692999d5271 Avoid unnecessary assignment in generated audio type converters.
Ryan C. Gordon <icculus@icculus.org>
parents: 2859
diff changeset
   887
        cvt->filters[cvt->filter_index] (cvt, AUDIO_F32LSB);
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   888
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   889
}
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   890
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   891
static void SDLCALL
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   892
SDL_Convert_S16LSB_to_F32MSB(SDL_AudioCVT * cvt, SDL_AudioFormat format)
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   893
{
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   894
    int i;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   895
    const Uint16 *src;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   896
    float *dst;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   897
3032
77c3e67f0740 Fixed Visual C++ build
Sam Lantinga <slouken@libsdl.org>
parents: 3021
diff changeset
   898
#if DEBUG_CONVERT
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   899
    fprintf(stderr, "Converting AUDIO_S16LSB to AUDIO_F32MSB.\n");
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   900
#endif
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   901
2956
1210d5a28e16 Fixed off-by-one in audio converters, when growing a data type's size.
Ryan C. Gordon <icculus@icculus.org>
parents: 2955
diff changeset
   902
    src = ((const Uint16 *) (cvt->buf + cvt->len_cvt)) - 1;
1210d5a28e16 Fixed off-by-one in audio converters, when growing a data type's size.
Ryan C. Gordon <icculus@icculus.org>
parents: 2955
diff changeset
   903
    dst = ((float *) (cvt->buf + cvt->len_cvt * 2)) - 1;
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   904
    for (i = cvt->len_cvt / sizeof (Uint16); i; --i, --src, --dst) {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   905
        const float val = (((float) ((Sint16) SDL_SwapLE16(*src))) * DIVBY32767);
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   906
        *dst = SDL_SwapFloatBE(val);
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   907
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   908
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   909
    cvt->len_cvt *= 2;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   910
    if (cvt->filters[++cvt->filter_index]) {
2955
2692999d5271 Avoid unnecessary assignment in generated audio type converters.
Ryan C. Gordon <icculus@icculus.org>
parents: 2859
diff changeset
   911
        cvt->filters[cvt->filter_index] (cvt, AUDIO_F32MSB);
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   912
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   913
}
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   914
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   915
static void SDLCALL
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   916
SDL_Convert_U16MSB_to_U8(SDL_AudioCVT * cvt, SDL_AudioFormat format)
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   917
{
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   918
    int i;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   919
    const Uint16 *src;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   920
    Uint8 *dst;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   921
3032
77c3e67f0740 Fixed Visual C++ build
Sam Lantinga <slouken@libsdl.org>
parents: 3021
diff changeset
   922
#if DEBUG_CONVERT
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   923
    fprintf(stderr, "Converting AUDIO_U16MSB to AUDIO_U8.\n");
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   924
#endif
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   925
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   926
    src = (const Uint16 *) cvt->buf;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   927
    dst = (Uint8 *) cvt->buf;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   928
    for (i = cvt->len_cvt / sizeof (Uint16); i; --i, ++src, ++dst) {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   929
        const Uint8 val = ((Uint8) (SDL_SwapBE16(*src) >> 8));
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   930
        *dst = val;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   931
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   932
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   933
    cvt->len_cvt /= 2;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   934
    if (cvt->filters[++cvt->filter_index]) {
2955
2692999d5271 Avoid unnecessary assignment in generated audio type converters.
Ryan C. Gordon <icculus@icculus.org>
parents: 2859
diff changeset
   935
        cvt->filters[cvt->filter_index] (cvt, AUDIO_U8);
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   936
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   937
}
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   938
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   939
static void SDLCALL
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   940
SDL_Convert_U16MSB_to_S8(SDL_AudioCVT * cvt, SDL_AudioFormat format)
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   941
{
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   942
    int i;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   943
    const Uint16 *src;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   944
    Sint8 *dst;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   945
3032
77c3e67f0740 Fixed Visual C++ build
Sam Lantinga <slouken@libsdl.org>
parents: 3021
diff changeset
   946
#if DEBUG_CONVERT
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   947
    fprintf(stderr, "Converting AUDIO_U16MSB to AUDIO_S8.\n");
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   948
#endif
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   949
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   950
    src = (const Uint16 *) cvt->buf;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   951
    dst = (Sint8 *) cvt->buf;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   952
    for (i = cvt->len_cvt / sizeof (Uint16); i; --i, ++src, ++dst) {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   953
        const Sint8 val = ((Sint8) (((SDL_SwapBE16(*src)) ^ 0x8000) >> 8));
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   954
        *dst = ((Sint8) val);
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   955
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   956
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   957
    cvt->len_cvt /= 2;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   958
    if (cvt->filters[++cvt->filter_index]) {
2955
2692999d5271 Avoid unnecessary assignment in generated audio type converters.
Ryan C. Gordon <icculus@icculus.org>
parents: 2859
diff changeset
   959
        cvt->filters[cvt->filter_index] (cvt, AUDIO_S8);
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   960
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   961
}
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   962
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   963
static void SDLCALL
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   964
SDL_Convert_U16MSB_to_U16LSB(SDL_AudioCVT * cvt, SDL_AudioFormat format)
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   965
{
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   966
    int i;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   967
    const Uint16 *src;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   968
    Uint16 *dst;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   969
3032
77c3e67f0740 Fixed Visual C++ build
Sam Lantinga <slouken@libsdl.org>
parents: 3021
diff changeset
   970
#if DEBUG_CONVERT
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   971
    fprintf(stderr, "Converting AUDIO_U16MSB to AUDIO_U16LSB.\n");
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   972
#endif
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   973
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   974
    src = (const Uint16 *) cvt->buf;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   975
    dst = (Uint16 *) cvt->buf;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   976
    for (i = cvt->len_cvt / sizeof (Uint16); i; --i, ++src, ++dst) {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   977
        const Uint16 val = SDL_SwapBE16(*src);
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   978
        *dst = SDL_SwapLE16(val);
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   979
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   980
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   981
    if (cvt->filters[++cvt->filter_index]) {
2955
2692999d5271 Avoid unnecessary assignment in generated audio type converters.
Ryan C. Gordon <icculus@icculus.org>
parents: 2859
diff changeset
   982
        cvt->filters[cvt->filter_index] (cvt, AUDIO_U16LSB);
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   983
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   984
}
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   985
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   986
static void SDLCALL
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   987
SDL_Convert_U16MSB_to_S16LSB(SDL_AudioCVT * cvt, SDL_AudioFormat format)
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   988
{
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   989
    int i;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   990
    const Uint16 *src;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   991
    Sint16 *dst;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   992
3032
77c3e67f0740 Fixed Visual C++ build
Sam Lantinga <slouken@libsdl.org>
parents: 3021
diff changeset
   993
#if DEBUG_CONVERT
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   994
    fprintf(stderr, "Converting AUDIO_U16MSB to AUDIO_S16LSB.\n");
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   995
#endif
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   996
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   997
    src = (const Uint16 *) cvt->buf;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   998
    dst = (Sint16 *) cvt->buf;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   999
    for (i = cvt->len_cvt / sizeof (Uint16); i; --i, ++src, ++dst) {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1000
        const Sint16 val = ((SDL_SwapBE16(*src)) ^ 0x8000);
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1001
        *dst = ((Sint16) SDL_SwapLE16(val));
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1002
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1003
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1004
    if (cvt->filters[++cvt->filter_index]) {
2955
2692999d5271 Avoid unnecessary assignment in generated audio type converters.
Ryan C. Gordon <icculus@icculus.org>
parents: 2859
diff changeset
  1005
        cvt->filters[cvt->filter_index] (cvt, AUDIO_S16LSB);
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1006
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1007
}
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1008
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1009
static void SDLCALL
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1010
SDL_Convert_U16MSB_to_S16MSB(SDL_AudioCVT * cvt, SDL_AudioFormat format)
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1011
{
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1012
    int i;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1013
    const Uint16 *src;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1014
    Sint16 *dst;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1015
3032
77c3e67f0740 Fixed Visual C++ build
Sam Lantinga <slouken@libsdl.org>
parents: 3021
diff changeset
  1016
#if DEBUG_CONVERT
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1017
    fprintf(stderr, "Converting AUDIO_U16MSB to AUDIO_S16MSB.\n");
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1018
#endif
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1019
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1020
    src = (const Uint16 *) cvt->buf;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1021
    dst = (Sint16 *) cvt->buf;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1022
    for (i = cvt->len_cvt / sizeof (Uint16); i; --i, ++src, ++dst) {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1023
        const Sint16 val = ((SDL_SwapBE16(*src)) ^ 0x8000);
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1024
        *dst = ((Sint16) SDL_SwapBE16(val));
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1025
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1026
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1027
    if (cvt->filters[++cvt->filter_index]) {
2955
2692999d5271 Avoid unnecessary assignment in generated audio type converters.
Ryan C. Gordon <icculus@icculus.org>
parents: 2859
diff changeset
  1028
        cvt->filters[cvt->filter_index] (cvt, AUDIO_S16MSB);
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1029
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1030
}
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1031
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1032
static void SDLCALL
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1033
SDL_Convert_U16MSB_to_S32LSB(SDL_AudioCVT * cvt, SDL_AudioFormat format)
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1034
{
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1035
    int i;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1036
    const Uint16 *src;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1037
    Sint32 *dst;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1038
3032
77c3e67f0740 Fixed Visual C++ build
Sam Lantinga <slouken@libsdl.org>
parents: 3021
diff changeset
  1039
#if DEBUG_CONVERT
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1040
    fprintf(stderr, "Converting AUDIO_U16MSB to AUDIO_S32LSB.\n");
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1041
#endif
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1042
2956
1210d5a28e16 Fixed off-by-one in audio converters, when growing a data type's size.
Ryan C. Gordon <icculus@icculus.org>
parents: 2955
diff changeset
  1043
    src = ((const Uint16 *) (cvt->buf + cvt->len_cvt)) - 1;
1210d5a28e16 Fixed off-by-one in audio converters, when growing a data type's size.
Ryan C. Gordon <icculus@icculus.org>
parents: 2955
diff changeset
  1044
    dst = ((Sint32 *) (cvt->buf + cvt->len_cvt * 2)) - 1;
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1045
    for (i = cvt->len_cvt / sizeof (Uint16); i; --i, --src, --dst) {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1046
        const Sint32 val = (((Sint32) ((SDL_SwapBE16(*src)) ^ 0x8000)) << 16);
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1047
        *dst = ((Sint32) SDL_SwapLE32(val));
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1048
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1049
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1050
    cvt->len_cvt *= 2;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1051
    if (cvt->filters[++cvt->filter_index]) {
2955
2692999d5271 Avoid unnecessary assignment in generated audio type converters.
Ryan C. Gordon <icculus@icculus.org>
parents: 2859
diff changeset
  1052
        cvt->filters[cvt->filter_index] (cvt, AUDIO_S32LSB);
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1053
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1054
}
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1055
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1056
static void SDLCALL
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1057
SDL_Convert_U16MSB_to_S32MSB(SDL_AudioCVT * cvt, SDL_AudioFormat format)
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1058
{
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1059
    int i;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1060
    const Uint16 *src;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1061
    Sint32 *dst;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1062
3032
77c3e67f0740 Fixed Visual C++ build
Sam Lantinga <slouken@libsdl.org>
parents: 3021
diff changeset
  1063
#if DEBUG_CONVERT
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1064
    fprintf(stderr, "Converting AUDIO_U16MSB to AUDIO_S32MSB.\n");
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1065
#endif
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1066
2956
1210d5a28e16 Fixed off-by-one in audio converters, when growing a data type's size.
Ryan C. Gordon <icculus@icculus.org>
parents: 2955
diff changeset
  1067
    src = ((const Uint16 *) (cvt->buf + cvt->len_cvt)) - 1;
1210d5a28e16 Fixed off-by-one in audio converters, when growing a data type's size.
Ryan C. Gordon <icculus@icculus.org>
parents: 2955
diff changeset
  1068
    dst = ((Sint32 *) (cvt->buf + cvt->len_cvt * 2)) - 1;
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1069
    for (i = cvt->len_cvt / sizeof (Uint16); i; --i, --src, --dst) {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1070
        const Sint32 val = (((Sint32) ((SDL_SwapBE16(*src)) ^ 0x8000)) << 16);
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1071
        *dst = ((Sint32) SDL_SwapBE32(val));
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1072
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1073
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1074
    cvt->len_cvt *= 2;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1075
    if (cvt->filters[++cvt->filter_index]) {
2955
2692999d5271 Avoid unnecessary assignment in generated audio type converters.
Ryan C. Gordon <icculus@icculus.org>
parents: 2859
diff changeset
  1076
        cvt->filters[cvt->filter_index] (cvt, AUDIO_S32MSB);
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1077
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1078
}
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1079
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1080
static void SDLCALL
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1081
SDL_Convert_U16MSB_to_F32LSB(SDL_AudioCVT * cvt, SDL_AudioFormat format)
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1082
{
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1083
    int i;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1084
    const Uint16 *src;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1085
    float *dst;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1086
3032
77c3e67f0740 Fixed Visual C++ build
Sam Lantinga <slouken@libsdl.org>
parents: 3021
diff changeset
  1087
#if DEBUG_CONVERT
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1088
    fprintf(stderr, "Converting AUDIO_U16MSB to AUDIO_F32LSB.\n");
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1089
#endif
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1090
2956
1210d5a28e16 Fixed off-by-one in audio converters, when growing a data type's size.
Ryan C. Gordon <icculus@icculus.org>
parents: 2955
diff changeset
  1091
    src = ((const Uint16 *) (cvt->buf + cvt->len_cvt)) - 1;
1210d5a28e16 Fixed off-by-one in audio converters, when growing a data type's size.
Ryan C. Gordon <icculus@icculus.org>
parents: 2955
diff changeset
  1092
    dst = ((float *) (cvt->buf + cvt->len_cvt * 2)) - 1;
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1093
    for (i = cvt->len_cvt / sizeof (Uint16); i; --i, --src, --dst) {
2011
b2b7154ce016 Fixed broken audio conversions between float and unsigned datatypes.
Ryan C. Gordon <icculus@icculus.org>
parents: 1985
diff changeset
  1094
        const float val = ((((float) SDL_SwapBE16(*src)) * DIVBY32767) - 1.0f);
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1095
        *dst = SDL_SwapFloatLE(val);
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1096
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1097
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1098
    cvt->len_cvt *= 2;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1099
    if (cvt->filters[++cvt->filter_index]) {
2955
2692999d5271 Avoid unnecessary assignment in generated audio type converters.
Ryan C. Gordon <icculus@icculus.org>
parents: 2859
diff changeset
  1100
        cvt->filters[cvt->filter_index] (cvt, AUDIO_F32LSB);
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1101
    }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1102
}
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1103
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1104
static void SDLCALL
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1105
SDL_Convert_U16MSB_to_F32MSB(SDL_AudioCVT * cvt, SDL_AudioFormat format)
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1106
{
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1107
    int i;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1108
    const Uint16 *src;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1109
    float *dst;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1110
3032
77c3e67f0740 Fixed Visual C++ build
Sam Lantinga <slouken@libsdl.org>
parents: 3021
diff changeset
  1111
#if DEBUG_CONVERT
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1112
    fprintf(stderr, "Converting AUDIO_U16MSB to AUDIO_F32MSB.\n");
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1113
#endif
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
  1114
2956
1210d5a28e16 Fixed off-by-one in audio converters, when growing a data type's size.
Ryan C. Gordon <icculus@icculus.org>
parents: 2955
diff changeset