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

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Revision 1913 - (hide 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 schoenebeck 1424 /***************************************************************************
2     * *
3     * LinuxSampler - modular, streaming capable sampler *
4     * *
5     * Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck *
6 schoenebeck 1800 * Copyright (C) 2005 - 2008 Christian Schoenebeck *
7 schoenebeck 1424 * *
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 iliev 1832 #include "Exception.h"
32 schoenebeck 1424 #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 senoner 1913 // 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 schoenebeck 1424 /**
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 iliev 1832 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 schoenebeck 1424 class Runnable {
90     public:
91     virtual ~Runnable() { }
92     virtual void Run() = 0;
93     };
94    
95     extern double GLOBAL_VOLUME;
96 schoenebeck 1800 extern int GLOBAL_MAX_VOICES;
97     extern int GLOBAL_MAX_STREAMS;
98 schoenebeck 1424
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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