/[svn]/linuxsampler/trunk/src/common/global_private.h
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Contents of /linuxsampler/trunk/src/common/global_private.h

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Revision 1913 - (show annotations) (download) (as text)
Sun Jun 7 16:24:55 2009 UTC (14 years, 10 months ago) by senoner
File MIME type: text/x-c++hdr
File size: 4205 byte(s)
* AudioChannel.cpp: added GCC vector extensions code for the functions
* copyTo() and MixTo() , gives 300% speedup
* should reduce CPU usage with large FX sends setups

1 /***************************************************************************
2 * *
3 * LinuxSampler - modular, streaming capable sampler *
4 * *
5 * Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck *
6 * Copyright (C) 2005 - 2008 Christian Schoenebeck *
7 * *
8 * This program is free software; you can redistribute it and/or modify *
9 * it under the terms of the GNU General Public License as published by *
10 * the Free Software Foundation; either version 2 of the License, or *
11 * (at your option) any later version. *
12 * *
13 * This program is distributed in the hope that it will be useful, *
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
16 * GNU General Public License for more details. *
17 * *
18 * You should have received a copy of the GNU General Public License *
19 * along with this program; if not, write to the Free Software *
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, *
21 * MA 02111-1307 USA *
22 ***************************************************************************/
23
24 // All application global declarations, that are not going to be exposed to
25 // the C++ API are defined here.
26
27 #ifndef __LS_GLOBAL_PRIVATE_H__
28 #define __LS_GLOBAL_PRIVATE_H__
29
30 #include "global.h"
31 #include "Exception.h"
32 #include <sstream>
33
34 #if HAVE_CONFIG_H
35 # include <config.h>
36 #endif
37
38 #if CONFIG_DEBUG_LEVEL > 0
39 # define dmsg(debuglevel,x) if (CONFIG_DEBUG_LEVEL >= debuglevel) {printf x; fflush(stdout);}
40 #else
41 # define dmsg(debuglevel,x)
42 #endif // CONFIG_DEBUG_LEVEL > 0
43
44 #define EMMS __asm__ __volatile__ ("emms" ::: "st", "st(1)", "st(2)", "st(3)", "st(4)", "st(5)", "st(6)", "st(7)", "mm0", "mm1", "mm2", "mm3", "mm4", "mm5", "mm6", "mm7")
45
46 /// defines globally the bit depth of used samples
47 typedef int16_t sample_t;
48
49 // macro to check for a certain version (or newer) of GCC
50 #define GNUC_VERSION_PREREQ(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
51 // macro which checks if GCC vector extensions are avialable
52 #define HAVE_GCC_VECTOR_EXTENSIONS ( GNUC_VERSION_PREREQ(3,3) && ( defined(__i386__) || defined(__x86_64__) || defined(_ARCH_PPC) ) )
53 // v4sf is used by some routines that make use of GCC vector extensions (ie AudioChannel.cpp)
54 typedef float v4sf __attribute__ ((vector_size(16)));
55
56 /**
57 * Whether a function / method call was successful, or if warnings or even an
58 * error occured.
59 */
60 enum result_type_t {
61 result_type_success,
62 result_type_warning,
63 result_type_error
64 };
65
66 /**
67 * Used whenever a detailed description of the result of a function / method
68 * call is needed.
69 */
70 struct result_t {
71 result_type_t type; ///< success, warning or error
72 int code; ///< warning or error code
73 String message; ///< detailed warning or error message
74 };
75
76 template<class T> inline String ToString(T o) {
77 std::stringstream ss;
78 ss << o;
79 return ss.str();
80 }
81
82 inline int ToInt(const std::string& s) throw(LinuxSampler::Exception) {
83 int i;
84 std::istringstream iss(s);
85 if(!(iss >> i)) throw LinuxSampler::Exception("Not an integer");
86 return i;
87 }
88
89 class Runnable {
90 public:
91 virtual ~Runnable() { }
92 virtual void Run() = 0;
93 };
94
95 extern double GLOBAL_VOLUME;
96 extern int GLOBAL_MAX_VOICES;
97 extern int GLOBAL_MAX_STREAMS;
98
99 // I read with some Linux kernel versions (between 2.4.18 and 2.4.21)
100 // sscanf() might be buggy regarding parsing of hex characters, so ...
101 int hexToNumber(char hex_digit);
102 int hexsToNumber(char hex_digit0, char hex_digit1 = '0');
103
104 #endif // __LS_GLOBAL_PRIVATE_H__

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