+++ /dev/null
-/*
- Copyright (C) 2003-2005 Mathieu Olivier
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License
- as published by the Free Software Foundation; either version 2
- of the License, or (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-
- See the GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to:
-
- Free Software Foundation, Inc.
- 59 Temple Place - Suite 330
- Boston, MA 02111-1307, USA
-
-*/
-
-
-#include "quakedef.h"
-#include "snd_main.h"
-#include "snd_modplug.h"
-
-#ifdef LINK_TO_LIBMODPLUG
-
-#include <libmodplug/modplug.h>
-qboolean ModPlug_OpenLibrary (void)
-{
- return true; // statically linked
-}
-void ModPlug_CloseLibrary (void)
-{
-}
-#define modplug_dll 1
-#define qModPlug_Load ModPlug_Load
-#define qModPlug_Unload ModPlug_Unload
-#define qModPlug_Read ModPlug_Read
-#define qModPlug_Seek ModPlug_Seek
-#define qModPlug_GetSettings ModPlug_GetSettings
-#define qModPlug_SetSettings ModPlug_SetSettings
-#define qModPlug_SetMasterVolume ModPlug_SetMasterVolume
-
-#else
-// BEGIN SECTION FROM modplug.h
-
- /*
- * This source code is public domain.
- *
- * Authors: Kenton Varda <temporal@gauge3d.org> (C interface wrapper)
- */
-
- enum _ModPlug_Flags
- {
- MODPLUG_ENABLE_OVERSAMPLING = 1 << 0, /* Enable oversampling (*highly* recommended) */
- MODPLUG_ENABLE_NOISE_REDUCTION = 1 << 1, /* Enable noise reduction */
- MODPLUG_ENABLE_REVERB = 1 << 2, /* Enable reverb */
- MODPLUG_ENABLE_MEGABASS = 1 << 3, /* Enable megabass */
- MODPLUG_ENABLE_SURROUND = 1 << 4 /* Enable surround sound. */
- };
-
- enum _ModPlug_ResamplingMode
- {
- MODPLUG_RESAMPLE_NEAREST = 0, /* No interpolation (very fast, extremely bad sound quality) */
- MODPLUG_RESAMPLE_LINEAR = 1, /* Linear interpolation (fast, good quality) */
- MODPLUG_RESAMPLE_SPLINE = 2, /* Cubic spline interpolation (high quality) */
- MODPLUG_RESAMPLE_FIR = 3 /* 8-tap fir filter (extremely high quality) */
- };
-
- typedef struct _ModPlug_Settings
- {
- int mFlags; /* One or more of the MODPLUG_ENABLE_* flags above, bitwise-OR'ed */
-
- /* Note that ModPlug always decodes sound at 44100kHz, 32 bit, stereo and then
- * down-mixes to the settings you choose. */
- int mChannels; /* Number of channels - 1 for mono or 2 for stereo */
- int mBits; /* Bits per sample - 8, 16, or 32 */
- int mFrequency; /* Sampling rate - 11025, 22050, or 44100 */
- int mResamplingMode; /* One of MODPLUG_RESAMPLE_*, above */
-
- int mStereoSeparation; /* Stereo separation, 1 - 256 */
- int mMaxMixChannels; /* Maximum number of mixing channels (polyphony), 32 - 256 */
-
- int mReverbDepth; /* Reverb level 0(quiet)-100(loud) */
- int mReverbDelay; /* Reverb delay in ms, usually 40-200ms */
- int mBassAmount; /* XBass level 0(quiet)-100(loud) */
- int mBassRange; /* XBass cutoff in Hz 10-100 */
- int mSurroundDepth; /* Surround level 0(quiet)-100(heavy) */
- int mSurroundDelay; /* Surround delay in ms, usually 5-40ms */
- int mLoopCount; /* Number of times to loop. Zero prevents looping.
- -1 loops forever. */
- } ModPlug_Settings;
-
- struct _ModPlugFile;
- typedef struct _ModPlugFile ModPlugFile;
-
-// END SECTION FROM modplug.h
-
-static ModPlugFile* (*qModPlug_Load) (const void* data, int size);
-static void (*qModPlug_Unload) (ModPlugFile* file);
-static int (*qModPlug_Read) (ModPlugFile* file, void* buffer, int size);
-static void (*qModPlug_Seek) (ModPlugFile* file, int millisecond);
-static void (*qModPlug_GetSettings) (ModPlug_Settings* settings);
-static void (*qModPlug_SetSettings) (const ModPlug_Settings* settings);
-typedef void (ModPlug_SetMasterVolume_t) (ModPlugFile* file,unsigned int cvol) ;
-ModPlug_SetMasterVolume_t *qModPlug_SetMasterVolume;
-
-
-static dllfunction_t modplugfuncs[] =
-{
- {"ModPlug_Load", (void **) &qModPlug_Load},
- {"ModPlug_Unload", (void **) &qModPlug_Unload},
- {"ModPlug_Read", (void **) &qModPlug_Read},
- {"ModPlug_Seek", (void **) &qModPlug_Seek},
- {"ModPlug_GetSettings", (void **) &qModPlug_GetSettings},
- {"ModPlug_SetSettings", (void **) &qModPlug_SetSettings},
- {NULL, NULL}
-};
-
-// Handles for the modplug and modplugfile DLLs
-static dllhandle_t modplug_dll = NULL;
-
-/*
-=================================================================
-
- DLL load & unload
-
-=================================================================
-*/
-
-/*
-====================
-ModPlug_OpenLibrary
-
-Try to load the modplugFile DLL
-====================
-*/
-qboolean ModPlug_OpenLibrary (void)
-{
- const char* dllnames_modplug [] =
- {
-#if defined(WIN32)
- "libmodplug-1.dll",
- "modplug.dll",
-#elif defined(MACOSX)
- "libmodplug.dylib",
-#else
- "libmodplug.so.1",
- "libmodplug.so",
-#endif
- NULL
- };
-
- // Already loaded?
- if (modplug_dll)
- return true;
-
-// COMMANDLINEOPTION: Sound: -nomodplug disables modplug sound support
- if (COM_CheckParm("-nomodplug"))
- return false;
-
-#ifdef __ANDROID__
- Con_Print("Warning: no modplug support in Android yet.\n");
- return false;
-#endif
-
- // Load the DLLs
- // We need to load both by hand because some OSes seem to not load
- // the modplug DLL automatically when loading the modplugFile DLL
- if(Sys_LoadLibrary (dllnames_modplug, &modplug_dll, modplugfuncs))
- {
- qModPlug_SetMasterVolume = (ModPlug_SetMasterVolume_t *) Sys_GetProcAddress(modplug_dll, "ModPlug_SetMasterVolume");
- if(!qModPlug_SetMasterVolume)
- Con_Print("Warning: modplug volume control not supported. Try getting a newer version of libmodplug.\n");
- return true;
- }
- else
- return false;
-}
-
-
-/*
-====================
-ModPlug_CloseLibrary
-
-Unload the modplugFile DLL
-====================
-*/
-void ModPlug_CloseLibrary (void)
-{
- Sys_UnloadLibrary (&modplug_dll);
-}
-#endif
-
-
-/*
-=================================================================
-
- modplug decoding
-
-=================================================================
-*/
-
-// Per-sfx data structure
-typedef struct
-{
- unsigned char *file;
- size_t filesize;
-} modplug_stream_persfx_t;
-
-// Per-channel data structure
-typedef struct
-{
- ModPlugFile *mf;
- int bs;
- int buffer_firstframe;
- int buffer_numframes;
- unsigned char buffer[STREAM_BUFFERSIZE*4];
-} modplug_stream_perchannel_t;
-
-
-/*
-====================
-ModPlug_GetSamplesFloat
-====================
-*/
-static void ModPlug_GetSamplesFloat(channel_t *ch, sfx_t *sfx, int firstsampleframe, int numsampleframes, float *outsamplesfloat)
-{
- modplug_stream_perchannel_t* per_ch = (modplug_stream_perchannel_t *)ch->fetcher_data;
- modplug_stream_persfx_t* per_sfx = (modplug_stream_persfx_t *)sfx->fetcher_data;
- int newlength, done, ret;
- int f = sfx->format.width * sfx->format.channels; // bytes per frame
- short *buf;
- int i, len;
-
- // If there's no fetcher structure attached to the channel yet
- if (per_ch == NULL)
- {
- per_ch = (modplug_stream_perchannel_t *)Mem_Alloc(snd_mempool, sizeof(*per_ch));
-
- // Open it with the modplugFile API
- per_ch->mf = qModPlug_Load(per_sfx->file, per_sfx->filesize);
- if (!per_ch->mf)
- {
- // we can't call Con_Printf here, not thread safe
-// Con_Printf("error while reading ModPlug stream \"%s\"\n", per_sfx->name);
- Mem_Free(per_ch);
- return;
- }
-
-#ifndef LINK_TO_LIBMODPLUG
- if(qModPlug_SetMasterVolume)
-#endif
- qModPlug_SetMasterVolume(per_ch->mf, 512); // max volume, DP scales down!
-
- per_ch->bs = 0;
-
- per_ch->buffer_firstframe = 0;
- per_ch->buffer_numframes = 0;
- ch->fetcher_data = per_ch;
- }
-
- // if the request is too large for our buffer, loop...
- while (numsampleframes * f > (int)sizeof(per_ch->buffer))
- {
- done = sizeof(per_ch->buffer) / f;
- ModPlug_GetSamplesFloat(ch, sfx, firstsampleframe, done, outsamplesfloat);
- firstsampleframe += done;
- numsampleframes -= done;
- outsamplesfloat += done * sfx->format.channels;
- }
-
- // seek if the request is before the current buffer (loop back)
- // seek if the request starts beyond the current buffer by at least one frame (channel was zero volume for a while)
- // do not seek if the request overlaps the buffer end at all (expected behavior)
- if (per_ch->buffer_firstframe > firstsampleframe || per_ch->buffer_firstframe + per_ch->buffer_numframes < firstsampleframe)
- {
- // we expect to decode forward from here so this will be our new buffer start
- per_ch->buffer_firstframe = firstsampleframe;
- per_ch->buffer_numframes = 0;
- // we don't actually seek - we don't care much about timing on silent mod music streams and looping never happens
- //qModPlug_Seek(per_ch->mf, firstsampleframe * 1000.0 / sfx->format.speed);
- }
-
- // decompress the file as needed
- if (firstsampleframe + numsampleframes > per_ch->buffer_firstframe + per_ch->buffer_numframes)
- {
- // first slide the buffer back, discarding any data preceding the range we care about
- int offset = firstsampleframe - per_ch->buffer_firstframe;
- int keeplength = per_ch->buffer_numframes - offset;
- if (keeplength > 0)
- memmove(per_ch->buffer, per_ch->buffer + offset * sfx->format.width * sfx->format.channels, keeplength * sfx->format.width * sfx->format.channels);
- per_ch->buffer_firstframe = firstsampleframe;
- per_ch->buffer_numframes -= offset;
- // decompress as much as we can fit in the buffer
- newlength = sizeof(per_ch->buffer) - per_ch->buffer_numframes * f;
- done = 0;
- while (newlength > done && (ret = qModPlug_Read(per_ch->mf, (void *)((unsigned char *)per_ch->buffer + done), (int)(newlength - done))) > 0)
- done += ret;
- // clear the missing space if any
- if (done < newlength)
- {
- memset(per_ch->buffer + done, 0, newlength - done);
- // Argh. We didn't get as many samples as we wanted. Probably
- // libmodplug forgot what mLoopCount==-1 means... basically, this means
- // we can't loop like this. Try to let DP fix it later...
- sfx->total_length = firstsampleframe + done / f;
- sfx->loopstart = 0;
- // can't Con_Printf from this thread
- //if (newlength != done)
- // Con_DPrintf("ModPlug_Fetch: wanted: %d, got: %d\n", newlength, done);
- }
- // we now have more data in the buffer
- per_ch->buffer_numframes += done / f;
- }
-
- // convert the sample format for the caller
- buf = (short *)(per_ch->buffer + (firstsampleframe - per_ch->buffer_firstframe) * f);
- len = numsampleframes * sfx->format.channels;
- for (i = 0;i < len;i++)
- outsamplesfloat[i] = buf[i] * (1.0f / 32768.0f);
-}
-
-
-/*
-====================
-ModPlug_StopChannel
-====================
-*/
-static void ModPlug_StopChannel(channel_t *ch)
-{
- modplug_stream_perchannel_t *per_ch = (modplug_stream_perchannel_t *)ch->fetcher_data;
-
- if (per_ch != NULL)
- {
- // Free the modplug decoder
- qModPlug_Unload(per_ch->mf);
-
- Mem_Free(per_ch);
- }
-}
-
-
-/*
-====================
-ModPlug_FreeSfx
-====================
-*/
-static void ModPlug_FreeSfx (sfx_t *sfx)
-{
- modplug_stream_persfx_t* per_sfx = (modplug_stream_persfx_t *)sfx->fetcher_data;
-
- // Free the modplug file
- Mem_Free(per_sfx->file);
-
- // Free the stream structure
- Mem_Free(per_sfx);
-}
-
-
-static const snd_fetcher_t modplug_fetcher = { ModPlug_GetSamplesFloat, ModPlug_StopChannel, ModPlug_FreeSfx };
-
-
-/*
-====================
-ModPlug_LoadmodplugFile
-
-Load an modplug file into memory
-====================
-*/
-qboolean ModPlug_LoadModPlugFile (const char *filename, sfx_t *sfx)
-{
- unsigned char *data;
- fs_offset_t filesize;
- ModPlugFile *mf;
- modplug_stream_persfx_t* per_sfx;
- ModPlug_Settings s;
-
- if (!modplug_dll)
- return false;
-
- // Already loaded?
- if (sfx->fetcher != NULL)
- return true;
-
- // Load the file
- data = FS_LoadFile (filename, snd_mempool, false, &filesize);
- if (data == NULL)
- return false;
-
- if (developer_loading.integer >= 2)
- Con_Printf ("Loading ModPlug file \"%s\"\n", filename);
-
- qModPlug_GetSettings(&s);
- s.mFlags = MODPLUG_ENABLE_OVERSAMPLING | MODPLUG_ENABLE_NOISE_REDUCTION | MODPLUG_ENABLE_REVERB;
- s.mChannels = 2;
- s.mBits = 16;
- s.mFrequency = 44100;
- s.mResamplingMode = MODPLUG_RESAMPLE_SPLINE;
- s.mLoopCount = -1;
- qModPlug_SetSettings(&s);
-
- // Open it with the modplugFile API
- if (!(mf = qModPlug_Load (data, filesize)))
- {
- Con_Printf ("error while opening ModPlug file \"%s\"\n", filename);
- Mem_Free(data);
- return false;
- }
-
-#ifndef LINK_TO_LIBMODPLUG
- if(qModPlug_SetMasterVolume)
-#endif
- qModPlug_SetMasterVolume(mf, 512); // max volume, DP scales down!
-
- if (developer_loading.integer >= 2)
- Con_Printf ("\"%s\" will be streamed\n", filename);
- per_sfx = (modplug_stream_persfx_t *)Mem_Alloc (snd_mempool, sizeof (*per_sfx));
- per_sfx->file = data;
- per_sfx->filesize = filesize;
- sfx->memsize += sizeof(*per_sfx);
- sfx->memsize += filesize;
- sfx->format.speed = 44100; // modplug always works at that rate
- sfx->format.width = 2; // We always work with 16 bits samples
- sfx->format.channels = 2; // stereo rulez ;) (MAYBE default to mono because Amiga MODs sound better then?)
- sfx->fetcher_data = per_sfx;
- sfx->fetcher = &modplug_fetcher;
- sfx->flags |= SFXFLAG_STREAMED;
- sfx->total_length = 1<<30; // 2147384647; // they always loop (FIXME this breaks after 6 hours, we need support for a real "infinite" value!)
- sfx->loopstart = sfx->total_length; // modplug does it
-
- return true;
-}
projects / xonotic / darkplaces.git / blobdiff