diff options
author | Robert Jonsson <spamatica@gmail.com> | 2011-09-15 12:14:55 +0000 |
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committer | Robert Jonsson <spamatica@gmail.com> | 2011-09-15 12:14:55 +0000 |
commit | b0546e5e7f7044019892543c6c82029db8d564a7 (patch) | |
tree | 1b96a6260900f3fbf3513fb48a5a72aa89052dc8 /attic/muse2-oom/muse2/al/dsp.h | |
parent | 583c73d1a07154d3d2672d65d8cce6495f490454 (diff) |
moved attic to a branch of it's own
Diffstat (limited to 'attic/muse2-oom/muse2/al/dsp.h')
-rw-r--r-- | attic/muse2-oom/muse2/al/dsp.h | 107 |
1 files changed, 0 insertions, 107 deletions
diff --git a/attic/muse2-oom/muse2/al/dsp.h b/attic/muse2-oom/muse2/al/dsp.h deleted file mode 100644 index f88a0122..00000000 --- a/attic/muse2-oom/muse2/al/dsp.h +++ /dev/null @@ -1,107 +0,0 @@ -//============================================================================= -// AL -// Audio Utility Library -// $Id: dsp.h,v 1.1.2.1 2009/12/06 01:39:33 terminator356 Exp $ -// -// Copyright (C) 2002-2006 by Werner Schweer and others -// -// This program is free software; you can redistribute it and/or modify -// it under the terms of the GNU General Public License version 2. -// -// This program is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -// GNU General Public License for more details. -// -// You should have received a copy of the GNU General Public License -// along with this program; if not, write to the Free Software -// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. -//============================================================================= - -#ifndef __DSP_H__ -#define __DSP_H__ - -#include <string.h> -#include <math.h> - -namespace AL { - -//--------------------------------------------------------- -// f_max -//--------------------------------------------------------- - -static inline float f_max(float x, float a) - { - x -= a; - x += fabsf(x); - x *= 0.5f; - x += a; - return x; - } - -//--------------------------------------------------------- -// Dsp -// standard version of all dsp routines without any -// hw acceleration -//--------------------------------------------------------- - -class Dsp { - public: - Dsp() {} - virtual ~Dsp() {} - - virtual float peak(float* buf, unsigned n, float current) { - for (unsigned i = 0; i < n; ++i) - current = f_max(current, fabsf(buf[i])); - return current; - } - virtual void applyGainToBuffer(float* buf, unsigned n, float gain) { - for (unsigned i = 0; i < n; ++i) - buf[i] *= gain; - } - virtual void mixWithGain(float* dst, float* src, unsigned n, float gain) { - for (unsigned i = 0; i < n; ++i) - dst[i] += src[i] * gain; - } - virtual void mix(float* dst, float* src, unsigned n) { - for (unsigned i = 0; i < n; ++i) - dst[i] += src[i]; - } - virtual void cpy(float* dst, float* src, unsigned n); -/* - { -// Changed by T356. Not defined. Where are these??? -//#if defined(ARCH_X86) || defined(ARCH_X86_64) -#if defined(__i386__) || defined(__x86_64__) - printf("Dsp: using asm cpy\n"); - // Changed by T356. Get To and From not declared in scope compile errors. - register unsigned long int dummy; - //__asm__ __volatile__ ("rep; movsl" :"=&D"(dst), "=&S"(src), "=&c"(dummy) :"0" (to), "1" (from),"2" (n) : "memory"); - // From http://www.ibiblio.org/gferg/ldp/GCC-Inline-Assembly-HOWTO.html - __asm__ __volatile__ ( \ - "cld\n\t" \ - "rep\n\t" \ - "movsl" \ - : \ - : "S" (src), "D" (dst), "c" (n) \ - : "memory" - ); - - //: "%ecx", "%esi", "%edi", "memory" -#else - printf("Dsp: using memcpy\n"); - memcpy(dst, src, sizeof(float) * n); -#endif - } -*/ - - }; - -extern void initDsp(); -extern void exitDsp(); -extern Dsp* dsp; - -} - -#endif - |