src/kits/midi/MidiSettings.cpp

   1 /*
   2  * Copyright 2015 Haiku, Inc. All rights reserved.
   3  * Distributed under the terms of the MIT License.
   4  */
   5
   6 #include <MidiSettings.h>
   7
   8 #include <File.h>
   9 #include <FindDirectory.h>
  10 #include <Path.h>
  11
  12 #include <driver_settings.h>
  13
  14 #include <stdio.h>
  15 #include <stdlib.h>
  16 #include <string.h>
  17
  18 #define SETTINGS_FILE "Media/midi_settings"
  19
  20 namespace BPrivate {
  21
  22 status_t
  23 read_midi_settings(struct midi_settings* settings)
  24 {
  25         if (settings == NULL)
  26                 return B_ERROR;
  27
  28         BPath path;
  29         status_t status = find_directory(B_USER_SETTINGS_DIRECTORY, &path);
  30         if (status != B_OK)
  31                 return status;
  32
  33         path.Append(SETTINGS_FILE);
  34         void* handle = load_driver_settings(path.Path());
  35         if (handle == NULL)
  36                 return B_ERROR;
  37
  38         const char* soundfont = get_driver_parameter(handle, "soundfont", NULL,
  39                 NULL);
  40         if (soundfont == NULL) {
  41                 unload_driver_settings(handle);
  42                 return B_ERROR;
  43         }
  44         strlcpy(settings->soundfont_file, soundfont,
  45                 sizeof(settings->soundfont_file));
  46
  47         unload_driver_settings(handle);
  48         return B_OK;
  49 }
  50
  51
  52 status_t
  53 write_midi_settings(struct midi_settings settings)
  54 {
  55         BPath path;
  56         status_t status = find_directory(B_USER_SETTINGS_DIRECTORY, &path);
  57         if (status != B_OK)
  58                 return status;
  59
  60         path.Append(SETTINGS_FILE);
  61
  62         BFile file;
  63         if (file.SetTo(path.Path(), B_WRITE_ONLY | B_CREATE_FILE | B_ERASE_FILE)
  64                 != B_OK)
  65                 return B_ERROR;
  66
  67         char buffer[B_FILE_NAME_LENGTH + 128];
  68         snprintf(buffer, sizeof(buffer), "# Midi\n\tsoundfont \"%s\"\n",
  69                         settings.soundfont_file);
  70
  71         size_t bufferSize = strlen(buffer);
  72         if (file.InitCheck() != B_OK
  73                 || file.Write(buffer, bufferSize) != (ssize_t)bufferSize)
  74                 return B_ERROR;
  75
  76         return B_OK;
  77 }
  78
  79 }