diff options
Diffstat (limited to 'qemu/audio/mixeng.c')
| -rw-r--r-- | qemu/audio/mixeng.c | 367 |
1 files changed, 0 insertions, 367 deletions
diff --git a/qemu/audio/mixeng.c b/qemu/audio/mixeng.c deleted file mode 100644 index 981b97a96..000000000 --- a/qemu/audio/mixeng.c +++ /dev/null @@ -1,367 +0,0 @@ -/* - * QEMU Mixing engine - * - * Copyright (c) 2004-2005 Vassili Karpov (malc) - * Copyright (c) 1998 Fabrice Bellard - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - */ -#include "qemu/osdep.h" -#include "qemu-common.h" -#include "audio.h" - -#define AUDIO_CAP "mixeng" -#include "audio_int.h" - -/* 8 bit */ -#define ENDIAN_CONVERSION natural -#define ENDIAN_CONVERT(v) (v) - -/* Signed 8 bit */ -#define BSIZE 8 -#define ITYPE int -#define IN_MIN SCHAR_MIN -#define IN_MAX SCHAR_MAX -#define SIGNED -#define SHIFT 8 -#include "mixeng_template.h" -#undef SIGNED -#undef IN_MAX -#undef IN_MIN -#undef BSIZE -#undef ITYPE -#undef SHIFT - -/* Unsigned 8 bit */ -#define BSIZE 8 -#define ITYPE uint -#define IN_MIN 0 -#define IN_MAX UCHAR_MAX -#define SHIFT 8 -#include "mixeng_template.h" -#undef IN_MAX -#undef IN_MIN -#undef BSIZE -#undef ITYPE -#undef SHIFT - -#undef ENDIAN_CONVERT -#undef ENDIAN_CONVERSION - -/* Signed 16 bit */ -#define BSIZE 16 -#define ITYPE int -#define IN_MIN SHRT_MIN -#define IN_MAX SHRT_MAX -#define SIGNED -#define SHIFT 16 -#define ENDIAN_CONVERSION natural -#define ENDIAN_CONVERT(v) (v) -#include "mixeng_template.h" -#undef ENDIAN_CONVERT -#undef ENDIAN_CONVERSION -#define ENDIAN_CONVERSION swap -#define ENDIAN_CONVERT(v) bswap16 (v) -#include "mixeng_template.h" -#undef ENDIAN_CONVERT -#undef ENDIAN_CONVERSION -#undef SIGNED -#undef IN_MAX -#undef IN_MIN -#undef BSIZE -#undef ITYPE -#undef SHIFT - -/* Unsigned 16 bit */ -#define BSIZE 16 -#define ITYPE uint -#define IN_MIN 0 -#define IN_MAX USHRT_MAX -#define SHIFT 16 -#define ENDIAN_CONVERSION natural -#define ENDIAN_CONVERT(v) (v) -#include "mixeng_template.h" -#undef ENDIAN_CONVERT -#undef ENDIAN_CONVERSION -#define ENDIAN_CONVERSION swap -#define ENDIAN_CONVERT(v) bswap16 (v) -#include "mixeng_template.h" -#undef ENDIAN_CONVERT -#undef ENDIAN_CONVERSION -#undef IN_MAX -#undef IN_MIN -#undef BSIZE -#undef ITYPE -#undef SHIFT - -/* Signed 32 bit */ -#define BSIZE 32 -#define ITYPE int -#define IN_MIN INT32_MIN -#define IN_MAX INT32_MAX -#define SIGNED -#define SHIFT 32 -#define ENDIAN_CONVERSION natural -#define ENDIAN_CONVERT(v) (v) -#include "mixeng_template.h" -#undef ENDIAN_CONVERT -#undef ENDIAN_CONVERSION -#define ENDIAN_CONVERSION swap -#define ENDIAN_CONVERT(v) bswap32 (v) -#include "mixeng_template.h" -#undef ENDIAN_CONVERT -#undef ENDIAN_CONVERSION -#undef SIGNED -#undef IN_MAX -#undef IN_MIN -#undef BSIZE -#undef ITYPE -#undef SHIFT - -/* Unsigned 32 bit */ -#define BSIZE 32 -#define ITYPE uint -#define IN_MIN 0 -#define IN_MAX UINT32_MAX -#define SHIFT 32 -#define ENDIAN_CONVERSION natural -#define ENDIAN_CONVERT(v) (v) -#include "mixeng_template.h" -#undef ENDIAN_CONVERT -#undef ENDIAN_CONVERSION -#define ENDIAN_CONVERSION swap -#define ENDIAN_CONVERT(v) bswap32 (v) -#include "mixeng_template.h" -#undef ENDIAN_CONVERT -#undef ENDIAN_CONVERSION -#undef IN_MAX -#undef IN_MIN -#undef BSIZE -#undef ITYPE -#undef SHIFT - -t_sample *mixeng_conv[2][2][2][3] = { - { - { - { - conv_natural_uint8_t_to_mono, - conv_natural_uint16_t_to_mono, - conv_natural_uint32_t_to_mono - }, - { - conv_natural_uint8_t_to_mono, - conv_swap_uint16_t_to_mono, - conv_swap_uint32_t_to_mono, - } - }, - { - { - conv_natural_int8_t_to_mono, - conv_natural_int16_t_to_mono, - conv_natural_int32_t_to_mono - }, - { - conv_natural_int8_t_to_mono, - conv_swap_int16_t_to_mono, - conv_swap_int32_t_to_mono - } - } - }, - { - { - { - conv_natural_uint8_t_to_stereo, - conv_natural_uint16_t_to_stereo, - conv_natural_uint32_t_to_stereo - }, - { - conv_natural_uint8_t_to_stereo, - conv_swap_uint16_t_to_stereo, - conv_swap_uint32_t_to_stereo - } - }, - { - { - conv_natural_int8_t_to_stereo, - conv_natural_int16_t_to_stereo, - conv_natural_int32_t_to_stereo - }, - { - conv_natural_int8_t_to_stereo, - conv_swap_int16_t_to_stereo, - conv_swap_int32_t_to_stereo, - } - } - } -}; - -f_sample *mixeng_clip[2][2][2][3] = { - { - { - { - clip_natural_uint8_t_from_mono, - clip_natural_uint16_t_from_mono, - clip_natural_uint32_t_from_mono - }, - { - clip_natural_uint8_t_from_mono, - clip_swap_uint16_t_from_mono, - clip_swap_uint32_t_from_mono - } - }, - { - { - clip_natural_int8_t_from_mono, - clip_natural_int16_t_from_mono, - clip_natural_int32_t_from_mono - }, - { - clip_natural_int8_t_from_mono, - clip_swap_int16_t_from_mono, - clip_swap_int32_t_from_mono - } - } - }, - { - { - { - clip_natural_uint8_t_from_stereo, - clip_natural_uint16_t_from_stereo, - clip_natural_uint32_t_from_stereo - }, - { - clip_natural_uint8_t_from_stereo, - clip_swap_uint16_t_from_stereo, - clip_swap_uint32_t_from_stereo - } - }, - { - { - clip_natural_int8_t_from_stereo, - clip_natural_int16_t_from_stereo, - clip_natural_int32_t_from_stereo - }, - { - clip_natural_int8_t_from_stereo, - clip_swap_int16_t_from_stereo, - clip_swap_int32_t_from_stereo - } - } - } -}; - -/* - * August 21, 1998 - * Copyright 1998 Fabrice Bellard. - * - * [Rewrote completly the code of Lance Norskog And Sundry - * Contributors with a more efficient algorithm.] - * - * This source code is freely redistributable and may be used for - * any purpose. This copyright notice must be maintained. - * Lance Norskog And Sundry Contributors are not responsible for - * the consequences of using this software. - */ - -/* - * Sound Tools rate change effect file. - */ -/* - * Linear Interpolation. - * - * The use of fractional increment allows us to use no buffer. It - * avoid the problems at the end of the buffer we had with the old - * method which stored a possibly big buffer of size - * lcm(in_rate,out_rate). - * - * Limited to 16 bit samples and sampling frequency <= 65535 Hz. If - * the input & output frequencies are equal, a delay of one sample is - * introduced. Limited to processing 32-bit count worth of samples. - * - * 1 << FRAC_BITS evaluating to zero in several places. Changed with - * an (unsigned long) cast to make it safe. MarkMLl 2/1/99 - */ - -/* Private data */ -struct rate { - uint64_t opos; - uint64_t opos_inc; - uint32_t ipos; /* position in the input stream (integer) */ - struct st_sample ilast; /* last sample in the input stream */ -}; - -/* - * Prepare processing. - */ -void *st_rate_start (int inrate, int outrate) -{ - struct rate *rate = audio_calloc (AUDIO_FUNC, 1, sizeof (*rate)); - - if (!rate) { - dolog ("Could not allocate resampler (%zu bytes)\n", sizeof (*rate)); - return NULL; - } - - rate->opos = 0; - - /* increment */ - rate->opos_inc = ((uint64_t) inrate << 32) / outrate; - - rate->ipos = 0; - rate->ilast.l = 0; - rate->ilast.r = 0; - return rate; -} - -#define NAME st_rate_flow_mix -#define OP(a, b) a += b -#include "rate_template.h" - -#define NAME st_rate_flow -#define OP(a, b) a = b -#include "rate_template.h" - -void st_rate_stop (void *opaque) -{ - g_free (opaque); -} - -void mixeng_clear (struct st_sample *buf, int len) -{ - memset (buf, 0, len * sizeof (struct st_sample)); -} - -void mixeng_volume (struct st_sample *buf, int len, struct mixeng_volume *vol) -{ - if (vol->mute) { - mixeng_clear (buf, len); - return; - } - - while (len--) { -#ifdef FLOAT_MIXENG - buf->l = buf->l * vol->l; - buf->r = buf->r * vol->r; -#else - buf->l = (buf->l * vol->l) >> 32; - buf->r = (buf->r * vol->r) >> 32; -#endif - buf += 1; - } -} |