From 0480c925192df4f60416f3676ff4a295e2bc9e27 Mon Sep 17 00:00:00 2001
From: Simon Howard
Date: Thu, 14 Jun 2007 21:45:50 +0000
Subject: Add configuration file variable to change the sound sample rate
 (snd_samplerate)

Subversion-branch: /trunk/chocolate-doom
Subversion-revision: 906
---
 setup/configfile.c | 1 +
 setup/sound.c      | 2 ++
 setup/sound.h      | 2 ++
 src/i_sound.c      | 4 +++-
 src/m_misc.c       | 2 ++
 5 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/setup/configfile.c b/setup/configfile.c
index 96f8bdd3..0a1e9e5f 100644
--- a/setup/configfile.c
+++ b/setup/configfile.c
@@ -258,6 +258,7 @@ static default_t extra_defaults_list[] =
     {"novert",                      &novert, DEFAULT_INT, 0, 0},
     {"mouse_acceleration",          &mouse_acceleration, DEFAULT_FLOAT, 0, 0},
     {"mouse_threshold",             &mouse_threshold, DEFAULT_INT, 0, 0},
+    {"snd_samplerate",              &snd_samplerate, DEFAULT_INT, 0, 0},
     {"show_endoom",                 &show_endoom, DEFAULT_INT, 0, 0},
     {"vanilla_savegame_limit",      &vanilla_savegame_limit, DEFAULT_INT, 0, 0},
     {"vanilla_demo_limit",          &vanilla_demo_limit, DEFAULT_INT, 0, 0},
diff --git a/setup/sound.c b/setup/sound.c
index 6cc3970d..6b427d58 100644
--- a/setup/sound.c
+++ b/setup/sound.c
@@ -72,6 +72,8 @@ int sfxVolume = 15;
 int snd_musicdevice = DEFAULT_MUSIC_DEVICE;
 int musicVolume = 15;
 
+int snd_samplerate = 22050;
+
 static int snd_sfxmode;
 static int snd_musicenabled;
 
diff --git a/setup/sound.h b/setup/sound.h
index 8a039f68..5ef0702e 100644
--- a/setup/sound.h
+++ b/setup/sound.h
@@ -29,6 +29,8 @@ extern int sfxVolume;
 extern int snd_musicdevice;
 extern int musicVolume;
 
+extern int snd_samplerate;
+
 void ConfigSound(void);
 
 #endif /* #ifndef SETUP_SOUND_H */
diff --git a/src/i_sound.c b/src/i_sound.c
index a6e5995f..0eb64980 100644
--- a/src/i_sound.c
+++ b/src/i_sound.c
@@ -67,6 +67,8 @@ static int mixer_freq;
 static Uint16 mixer_format;
 static int mixer_channels;
 
+int snd_samplerate = MIX_DEFAULT_FREQUENCY;
+
 // When a sound stops, check if it is still playing.  If it is not, 
 // we can mark the sound data as CACHE to be freed back for other
 // means.
@@ -570,7 +572,7 @@ I_InitSound()
         return;
     }
 
-    if (Mix_OpenAudio(22050, AUDIO_S16SYS, 2, 1024) < 0)
+    if (Mix_OpenAudio(snd_samplerate, AUDIO_S16SYS, 2, 1024) < 0)
     {
         fprintf(stderr, "Error initialising SDL_mixer: %s\n", Mix_GetError());
         return;
diff --git a/src/m_misc.c b/src/m_misc.c
index ee3aae95..2d59675e 100644
--- a/src/m_misc.c
+++ b/src/m_misc.c
@@ -284,6 +284,7 @@ extern int      vanilla_demo_limit;
 
 extern int snd_musicdevice;
 extern int snd_sfxdevice;
+extern int snd_samplerate;
 
 // dos specific options: these are unused but should be maintained
 // so that the config file can be shared between chocolate
@@ -406,6 +407,7 @@ static default_t extra_defaults_list[] =
     {"novert",                      &novert, DEFAULT_INT, 0, 0},
     {"mouse_acceleration",          &mouse_acceleration, DEFAULT_FLOAT, 0, 0},
     {"mouse_threshold",             &mouse_threshold, DEFAULT_INT, 0, 0},
+    {"snd_samplerate",              &snd_samplerate, DEFAULT_INT, 0, 0},
     {"show_endoom",                 &show_endoom, DEFAULT_INT, 0, 0},
     {"vanilla_savegame_limit",      &vanilla_savegame_limit, DEFAULT_INT, 0, 0},
     {"vanilla_demo_limit",          &vanilla_demo_limit, DEFAULT_INT, 0, 0},
-- 
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