apps/plugins/pdbox/pdbox.h

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2009 Wincent Balin
  11  *
  12  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License
  14  * as published by the Free Software Foundation; either version 2
  15  * of the License, or (at your option) any later version.
  16  *
  17  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  18  * KIND, either express or implied.
  19  *
  20  ****************************************************************************/
  21
  22 #ifndef PDBOX_H
  23 #define PDBOX_H
  24
  25 /* Use dbestfit. */
  26 #include "bmalloc.h"
  27 #include "dmalloc.h"
  28
  29 /* Pure Data */
  30 #include "m_pd.h"
  31
  32
  33 /* dbestfit declarations. */
  34
  35 /* Minimal memory size. */
  36 #define MIN_MEM_SIZE (4 * 1024 * 1024)
  37
  38
  39 /* Audio declarations. */
  40 #define PD_SAMPLERATE 32000
  41 #define PD_SAMPLES_QUOT (PD_SAMPLERATE / HZ)
  42 #define PD_SAMPLES_REM  (PD_SAMPLERATE % HZ)
  43 #if PD_SAMPLES_REM == 0
  44   #define PD_SAMPLES_PER_HZ (PD_SAMPLES_QUOT)
  45 #else
  46   #define PD_SAMPLES_PER_HZ (PD_SAMPLES_QUOT + 1)
  47 #endif
  48
  49 /* Audio data types. */
  50 #define PD_AUDIO_BLOCK_SIZE PD_SAMPLES_PER_HZ
  51 struct pdbox_audio_block
  52 {
  53     unsigned int fill;
  54     int32_t data[PD_AUDIO_BLOCK_SIZE];
  55 };
  56
  57
  58 /* Additional functions. */
  59 char *rb_strncat(char *s, const char *t, size_t n);
  60 double rb_strtod(const char*, char**);
  61 double rb_atof(const char*);
  62 void rb_ftoan(float, char*, int);
  63 float rb_floor(float);
  64 long rb_atol(const char* s);
  65 float rb_sin(float rad);
  66 float rb_cos(float rad);
  67 int rb_fscanf_f(int fd, float* f);
  68 int rb_fprintf_f(int fd, float f);
  69 float rb_log10(float);
  70 float rb_log(float);
  71 float rb_exp(float);
  72 float rb_pow(float, float);
  73 float rb_sqrt(float);
  74 float rb_fabs(float);
  75 float rb_atan(float);
  76 float rb_atan2(float, float);
  77 float rb_sinh(float);
  78 float rb_tan(float);
  79 typedef struct
  80 {
  81     int quot;
  82     int rem;
  83 }
  84 div_t;
  85 div_t div(int x, int y);
  86 void sys_findlibdir(const char* filename);
  87 int sys_startgui(const char *guidir);
  88
  89
  90 /* Network declarations. */
  91
  92 /* Maximal size of the datagram. */
  93 #define MAX_DATAGRAM_SIZE 255
  94
  95 /* This structure replaces a UDP datagram. */
  96 struct datagram
  97 {
  98     bool used;
  99     uint8_t size;
 100     char data[MAX_DATAGRAM_SIZE];
 101 };
 102
 103 /* Prototypes of network functions. */
 104 void net_init(void);
 105 void net_destroy(void);
 106 bool send_datagram(struct event_queue* route, int port,
 107                    char* data, size_t size);
 108 bool receive_datagram(struct event_queue* route, int port,
 109                       struct datagram* buffer);
 110
 111 /* Network message queues. */
 112 extern struct event_queue gui_to_core;
 113 extern struct event_queue core_to_gui;
 114
 115 /* UDP ports of the original software. */
 116 #define PD_CORE_PORT 3333
 117 #define PD_GUI_PORT 3334
 118
 119 /* Convinience macros. */
 120 #define SEND_TO_CORE(data) \
 121     send_datagram(&gui_to_core, PD_CORE_PORT, data, strlen(data))
 122 #define RECEIVE_TO_CORE(buffer) \
 123     receive_datagram(&gui_to_core, PD_CORE_PORT, buffer)
 124 #define SEND_FROM_CORE(data) \
 125     send_datagram(&core_to_gui, PD_GUI_PORT, data, strlen(data))
 126 #define RECEIVE_FROM_CORE(buffer) \
 127     receive_datagram(&core_to_gui, PD_GUI_PORT, buffer)
 128
 129 /* PD core message callback. */
 130 void rockbox_receive_callback(struct datagram* dg);
 131
 132
 133 /* Pure Data declarations. */
 134
 135 /* Pure Data function prototypes. */
 136 void pd_init(void);
 137
 138
 139 /* Redefinitons of ANSI C functions. */
 140 #include "lib/wrappers.h"
 141
 142 #define strncat rb_strncat
 143 #define floor rb_floor
 144 #define atof rb_atof
 145 #define atol rb_atol
 146 #define ftoan rb_ftoan
 147 #define sin rb_sin
 148 #define cos rb_cos
 149 #define log10 rb_log10
 150 #define log rb_log
 151 #define exp rb_exp
 152 #define pow rb_pow
 153 #define sqrt rb_sqrt
 154 #define fabs rb_fabs
 155 #define atan rb_atan
 156 #define atan2 rb_atan2
 157 #define sinh rb_sinh
 158 #define tan rb_tan
 159
 160 #endif