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author | peter1138 <peter1138@openttd.org> | 2006-09-27 18:17:01 +0000 |
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committer | peter1138 <peter1138@openttd.org> | 2006-09-27 18:17:01 +0000 |
commit | 653e7fa54843b4427908b47d2e7da8ee48071a18 (patch) | |
tree | 89f67db5c4825d95a0c5687363b43db1311ffae7 /newgrf_sound.c | |
parent | 3ded010d91a755f3f719d5bfe91cda6d161ef2d0 (diff) | |
download | openttd-653e7fa54843b4427908b47d2e7da8ee48071a18.tar.xz |
(svn r6532) - Feature: Add support for NewGRF sound effects. Currently sound priority isn't supported.
Diffstat (limited to 'newgrf_sound.c')
-rw-r--r-- | newgrf_sound.c | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/newgrf_sound.c b/newgrf_sound.c new file mode 100644 index 000000000..7d746f712 --- /dev/null +++ b/newgrf_sound.c @@ -0,0 +1,73 @@ +/* $Id$ */ + +#include "stdafx.h" +#include "openttd.h" +#include "pool.h" +#include "sound.h" +#include "engine.h" +#include "vehicle.h" +#include "newgrf_callbacks.h" +#include "newgrf_engine.h" +#include "newgrf_sound.h" + +enum { + SOUND_POOL_BLOCK_SIZE_BITS = 3, /* (1 << 3) == 8 items */ + SOUND_POOL_MAX_BLOCKS = 1000, +}; + +static uint _sound_count = 0; +static MemoryPool _sound_pool = { "Sound", SOUND_POOL_MAX_BLOCKS, SOUND_POOL_BLOCK_SIZE_BITS, sizeof(FileEntry), NULL, NULL, 0, 0, NULL }; + + +/* Allocate a new FileEntry */ +FileEntry *AllocateFileEntry(void) +{ + if (_sound_count == _sound_pool.total_items) { + if (!AddBlockToPool(&_sound_pool)) return NULL; + } + + return (FileEntry*)GetItemFromPool(&_sound_pool, _sound_count++); +} + + +void InitializeSoundPool(void) +{ + CleanPool(&_sound_pool); + _sound_count = 0; + + /* Copy original sound data to the pool */ + SndCopyToPool(); +} + + +FileEntry *GetSound(uint index) +{ + if (index >= _sound_count) return NULL; + return (FileEntry*)GetItemFromPool(&_sound_pool, index); +} + + +uint GetNumSounds(void) +{ + return _sound_count; +} + + +bool PlayVehicleSound(const Vehicle *v, VehicleSoundEvent event) +{ + const GRFFile *file = GetEngineGRF(v->engine_type); + uint16 callback; + + /* If the engine has no GRF ID associated it can't ever play any new sounds */ + if (file == NULL) return false; + + /* Check that the vehicle type uses the sound effect callback */ + if (!HASBIT(EngInfo(v->engine_type)->callbackmask, CBM_SOUND_EFFECT)) return false; + + callback = GetVehicleCallback(CBID_VEHICLE_SOUND_EFFECT, event, 0, v->engine_type, v); + if (callback == CALLBACK_FAILED) return false; + if (callback >= GetNumOriginalSounds()) callback += file->sound_offset - GetNumOriginalSounds(); + + SndPlayVehicleFx(callback, v); + return true; +} |