static cvar_t snd_noextraupdate = {0, "snd_noextraupdate", "0", "disables extra sound mixer calls that are meant to reduce the chance of sound breakup at very low framerates"};
static cvar_t snd_show = {0, "snd_show", "0", "shows some statistics about sound mixing"};
-// Default sound format is 48KHz, 16-bit, stereo
+// Default sound format is 48KHz, 32bit float, stereo
// (48KHz because a lot of onboard sound cards sucks at any other speed)
static cvar_t snd_speed = {CVAR_SAVE, "snd_speed", "48000", "sound output frequency, in hertz"};
-static cvar_t snd_width = {CVAR_SAVE, "snd_width", "2", "sound output precision, in bytes (1 and 2 supported)"};
+static cvar_t snd_width = {CVAR_SAVE, "snd_width", "4", "sound output precision, in bytes - 1 = 8bit, 2 = 16bit, 4 = 32bit float"};
static cvar_t snd_channels = {CVAR_SAVE, "snd_channels", "2", "number of channels for the sound output (2 for stereo; up to 8 supported for 3D sound)"};
static cvar_t snd_startloopingsounds = {0, "snd_startloopingsounds", "1", "whether to start sounds that would loop (you want this to be 1); existing sounds are not affected"};
}
-static qboolean S_ChooseCheaperFormat (snd_format_t* format, qboolean fixed_speed, qboolean fixed_width, qboolean fixed_channels)
-{
- static const snd_format_t thresholds [] =
- {
- // speed width channels
- { SND_MIN_SPEED, SND_MIN_WIDTH, SND_MIN_CHANNELS },
- { 11025, 1, 2 },
- { 22050, 2, 2 },
- { 44100, 2, 2 },
- { 48000, 2, 6 },
- { 96000, 2, 6 },
- { SND_MAX_SPEED, SND_MAX_WIDTH, SND_MAX_CHANNELS },
- };
- const unsigned int nb_thresholds = sizeof(thresholds) / sizeof(thresholds[0]);
- unsigned int speed_level, width_level, channels_level;
-
- // If we have reached the minimum values, there's nothing more we can do
- if ((format->speed == thresholds[0].speed || fixed_speed) &&
- (format->width == thresholds[0].width || fixed_width) &&
- (format->channels == thresholds[0].channels || fixed_channels))
- return false;
-
- // Check the min and max values
- #define CHECK_BOUNDARIES(param) \
- if (format->param < thresholds[0].param) \
- { \
- format->param = thresholds[0].param; \
- return true; \
- } \
- if (format->param > thresholds[nb_thresholds - 1].param) \
- { \
- format->param = thresholds[nb_thresholds - 1].param; \
- return true; \
- }
- CHECK_BOUNDARIES(speed);
- CHECK_BOUNDARIES(width);
- CHECK_BOUNDARIES(channels);
- #undef CHECK_BOUNDARIES
-
- // Find the level of each parameter
- #define FIND_LEVEL(param) \
- param##_level = 0; \
- while (param##_level < nb_thresholds - 1) \
- { \
- if (format->param <= thresholds[param##_level].param) \
- break; \
- \
- param##_level++; \
- }
- FIND_LEVEL(speed);
- FIND_LEVEL(width);
- FIND_LEVEL(channels);
- #undef FIND_LEVEL
-
- // Decrease the parameter with the highest level to the previous level
- if (channels_level >= speed_level && channels_level >= width_level && !fixed_channels)
- {
- format->channels = thresholds[channels_level - 1].channels;
- return true;
- }
- if (speed_level >= width_level && !fixed_speed)
- {
- format->speed = thresholds[speed_level - 1].speed;
- return true;
- }
-
- format->width = thresholds[width_level - 1].width;
- return true;
-}
-
-
#define SWAP_LISTENERS(l1, l2, tmpl) { tmpl = (l1); (l1) = (l2); (l2) = tmpl; }
static void S_SetChannelLayout (void)
chosen_fmt.speed = atoi (com_argv[i + 1]);
fixed_speed = true;
}
-// COMMANDLINEOPTION: Sound: -sndbits <bits> chooses 8 bit or 16 bit sound output
+// COMMANDLINEOPTION: Sound: -sndbits <bits> chooses 8 bit or 16 bit or 32bit float sound output
i = COM_CheckParm ("-sndbits");
if (0 < i && i < com_argc - 1)
{
chosen_fmt.width = SND_MIN_WIDTH;
fixed_width = false;
}
+ else if (chosen_fmt.width == 3)
+ {
+ chosen_fmt.width = 4;
+ fixed_width = false;
+ }
else if (chosen_fmt.width > SND_MAX_WIDTH)
{
chosen_fmt.width = SND_MAX_WIDTH;
// create the sound buffer used for sumitting the samples to the plaform-dependent module
if (!simsound)
{
- snd_format_t suggest_fmt;
- qboolean accepted;
-
- accepted = false;
- do
- {
- Con_Printf("S_Startup: initializing sound output format: %dHz, %d bit, %d channels...\n",
- chosen_fmt.speed, chosen_fmt.width * 8,
- chosen_fmt.channels);
-
- memset(&suggest_fmt, 0, sizeof(suggest_fmt));
- accepted = SndSys_Init(&chosen_fmt, &suggest_fmt);
-
- if (!accepted)
- {
- Con_Printf("S_Startup: sound output initialization FAILED\n");
-
- // If the module is suggesting another one
- if (suggest_fmt.speed != 0)
- {
- memcpy(&chosen_fmt, &suggest_fmt, sizeof(chosen_fmt));
- Con_Printf (" Driver has suggested %dHz, %d bit, %d channels. Retrying...\n",
- suggest_fmt.speed, suggest_fmt.width * 8,
- suggest_fmt.channels);
- }
- // Else, try to find a less resource-demanding format
- else if (!S_ChooseCheaperFormat (&chosen_fmt, fixed_speed, fixed_width, fixed_channels))
- break;
- }
- } while (!accepted);
+ Con_Printf("S_Startup: initializing sound output format: %dHz, %d bit, %d channels...\n",
+ chosen_fmt.speed,
+ chosen_fmt.width,
+ chosen_fmt.channels);
- // If we haven't found a suitable format
- if (!accepted)
+ if (!SndSys_Init(&chosen_fmt))
{
Con_Print("S_Startup: SndSys_Init failed.\n");
sound_spatialized = false;
projects / xonotic / darkplaces.git / blobdiff