diff options
Diffstat (limited to 'qemu/audio/mixeng_template.h')
| -rw-r--r-- | qemu/audio/mixeng_template.h | 154 |
1 files changed, 0 insertions, 154 deletions
diff --git a/qemu/audio/mixeng_template.h b/qemu/audio/mixeng_template.h deleted file mode 100644 index 77cc89b9e..000000000 --- a/qemu/audio/mixeng_template.h +++ /dev/null @@ -1,154 +0,0 @@ -/* - * QEMU Mixing engine - * - * Copyright (c) 2004-2005 Vassili Karpov (malc) - * - * 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. - */ - -/* - * Tusen tack till Mike Nordell - * dec++'ified by Dscho - */ - -#ifndef SIGNED -#define HALF (IN_MAX >> 1) -#endif - -#define ET glue (ENDIAN_CONVERSION, glue (glue (glue (_, ITYPE), BSIZE), _t)) -#define IN_T glue (glue (ITYPE, BSIZE), _t) - -#ifdef FLOAT_MIXENG -static inline mixeng_real glue (conv_, ET) (IN_T v) -{ - IN_T nv = ENDIAN_CONVERT (v); - -#ifdef RECIPROCAL -#ifdef SIGNED - return nv * (1.f / (mixeng_real) (IN_MAX - IN_MIN)); -#else - return (nv - HALF) * (1.f / (mixeng_real) IN_MAX); -#endif -#else /* !RECIPROCAL */ -#ifdef SIGNED - return nv / (mixeng_real) ((mixeng_real) IN_MAX - IN_MIN); -#else - return (nv - HALF) / (mixeng_real) IN_MAX; -#endif -#endif -} - -static inline IN_T glue (clip_, ET) (mixeng_real v) -{ - if (v >= 0.5) { - return IN_MAX; - } - else if (v < -0.5) { - return IN_MIN; - } - -#ifdef SIGNED - return ENDIAN_CONVERT ((IN_T) (v * ((mixeng_real) IN_MAX - IN_MIN))); -#else - return ENDIAN_CONVERT ((IN_T) ((v * IN_MAX) + HALF)); -#endif -} - -#else /* !FLOAT_MIXENG */ - -static inline int64_t glue (conv_, ET) (IN_T v) -{ - IN_T nv = ENDIAN_CONVERT (v); -#ifdef SIGNED - return ((int64_t) nv) << (32 - SHIFT); -#else - return ((int64_t) nv - HALF) << (32 - SHIFT); -#endif -} - -static inline IN_T glue (clip_, ET) (int64_t v) -{ - if (v >= 0x7f000000) { - return IN_MAX; - } - else if (v < -2147483648LL) { - return IN_MIN; - } - -#ifdef SIGNED - return ENDIAN_CONVERT ((IN_T) (v >> (32 - SHIFT))); -#else - return ENDIAN_CONVERT ((IN_T) ((v >> (32 - SHIFT)) + HALF)); -#endif -} -#endif - -static void glue (glue (conv_, ET), _to_stereo) - (struct st_sample *dst, const void *src, int samples) -{ - struct st_sample *out = dst; - IN_T *in = (IN_T *) src; - - while (samples--) { - out->l = glue (conv_, ET) (*in++); - out->r = glue (conv_, ET) (*in++); - out += 1; - } -} - -static void glue (glue (conv_, ET), _to_mono) - (struct st_sample *dst, const void *src, int samples) -{ - struct st_sample *out = dst; - IN_T *in = (IN_T *) src; - - while (samples--) { - out->l = glue (conv_, ET) (in[0]); - out->r = out->l; - out += 1; - in += 1; - } -} - -static void glue (glue (clip_, ET), _from_stereo) - (void *dst, const struct st_sample *src, int samples) -{ - const struct st_sample *in = src; - IN_T *out = (IN_T *) dst; - while (samples--) { - *out++ = glue (clip_, ET) (in->l); - *out++ = glue (clip_, ET) (in->r); - in += 1; - } -} - -static void glue (glue (clip_, ET), _from_mono) - (void *dst, const struct st_sample *src, int samples) -{ - const struct st_sample *in = src; - IN_T *out = (IN_T *) dst; - while (samples--) { - *out++ = glue (clip_, ET) (in->l + in->r); - in += 1; - } -} - -#undef ET -#undef HALF -#undef IN_T |