include/server/ReadWriteMacros.h

   1 /*
   2         SuperCollider real time audio synthesis system
   3     Copyright (c) 2002 James McCartney. All rights reserved.
   4         http://www.audiosynth.com
   5
   6     This program is free software; you can redistribute it and/or modify
   7     it under the terms of the GNU General Public License as published by
   8     the Free Software Foundation; either version 2 of the License, or
   9     (at your option) any later version.
  10
  11     This program is distributed in the hope that it will be useful,
  12     but WITHOUT ANY WARRANTY; without even the implied warranty of
  13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14     GNU General Public License for more details.
  15
  16     You should have received a copy of the GNU General Public License
  17     along with this program; if not, write to the Free Software
  18     Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA
  19 */
  20
  21
  22 #ifndef _ReadWriteMacros_
  23 #define _ReadWriteMacros_
  24
  25 #include "SC_Types.h"
  26 #include <stdio.h>
  27 #include <string.h>
  28 #include <stdexcept>
  29
  30 inline int32 readInt8(FILE *file)
  31 {
  32         int32 res = fgetc(file);
  33
  34         return res;
  35 }
  36
  37 inline uint32 readUInt8(FILE *file)
  38 {
  39     uint8 res = (uint8)fgetc(file);
  40     return (uint32)res;
  41 }
  42
  43 inline int32 readInt16_be(FILE *file)
  44 {
  45         int32 c = fgetc(file);
  46         int32 d = fgetc(file);
  47
  48         int32 res = ((c & 255) << 8) | (d & 255);
  49         return res;
  50 }
  51
  52 inline int32 readInt32_be(FILE *file)
  53 {
  54         int32 a = fgetc(file);
  55         int32 b = fgetc(file);
  56         int32 c = fgetc(file);
  57         int32 d = fgetc(file);
  58
  59         int32 res = ((a & 255) << 24) | ((b & 255) << 16) | ((c & 255) << 8) | (d & 255);
  60         return res;
  61 }
  62
  63 inline float readFloat_be(FILE *file)
  64 {
  65         union {
  66                 float f;
  67                 int32 i;
  68         } u;
  69         u.i = readInt32_be(file);
  70         //post("readFloat %g\n", u.f);
  71         return u.f;
  72 }
  73
  74 inline void readData(FILE *file, char *outData, size_t inLength)
  75 {
  76         size_t read = fread(outData, 1, inLength, file);
  77         if (read != inLength)
  78                 throw std::runtime_error("readData: read != inLength");
  79 }
  80
  81 inline int32 readInt8(char *&buf)
  82 {
  83         int32 res = *buf++;
  84         return res;
  85 }
  86
  87 inline uint32 readUInt8(char *&buf)
  88 {
  89     uint8 res = (uint8)*buf++;
  90     return (uint32)res;
  91 }
  92
  93 inline int32 readInt16_be(char *&buf)
  94 {
  95         int32 c = readInt8(buf);
  96         int32 d = readInt8(buf);
  97
  98         int32 res = ((c & 255) << 8) | (d & 255);
  99         return res;
 100 }
 101
 102 inline int32 readInt32_be(char *&buf)
 103 {
 104         int32 a = readInt8(buf);
 105         int32 b = readInt8(buf);
 106         int32 c = readInt8(buf);
 107         int32 d = readInt8(buf);
 108
 109         int32 res = ((a & 255) << 24) | ((b & 255) << 16) | ((c & 255) << 8) | (d & 255);
 110         return res;
 111 }
 112
 113 inline float readFloat_be(char *&buf)
 114 {
 115         union {
 116                 float f;
 117                 int32 i;
 118         } u;
 119         u.i = readInt32_be(buf);
 120         //post("readFloat %g\n", u.f);
 121         return u.f;
 122 }
 123
 124 inline void readData(char *&buf, char *outData, size_t inLength)
 125 {
 126         memcpy(outData, buf, inLength);
 127         buf += inLength;
 128 }
 129
 130
 131 #endif