diff options
Diffstat (limited to 'src/engine/client')
| -rw-r--r-- | src/engine/client/sound.cpp | 25 |
1 files changed, 18 insertions, 7 deletions
diff --git a/src/engine/client/sound.cpp b/src/engine/client/sound.cpp index 3f3d1a5d..343fa2e8 100644 --- a/src/engine/client/sound.cpp +++ b/src/engine/client/sound.cpp @@ -1,8 +1,11 @@ /* (c) Magnus Auvinen. See licence.txt in the root of the distribution for more information. */ /* If you are missing that file, acquire a complete release at teeworlds.com. */ +#include <base/math.h> #include <base/system.h> + #include <engine/graphics.h> #include <engine/storage.h> + #include <engine/shared/config.h> #include "SDL.h" @@ -19,8 +22,6 @@ enum NUM_SAMPLES = 512, NUM_VOICES = 64, NUM_CHANNELS = 16, - - MAX_FRAMES = 1024 }; struct CSample @@ -63,7 +64,8 @@ static int m_MixingRate = 48000; static volatile int m_SoundVolume = 100; static int m_NextVoice = 0; - +static int *m_pMixBuffer = 0; // buffer only used by the thread callback function +static unsigned m_MaxFrames = 0; // TODO: there should be a faster way todo this static short Int2Short(int i) @@ -84,8 +86,9 @@ static int IntAbs(int i) static void Mix(short *pFinalOut, unsigned Frames) { - int aMixBuffer[MAX_FRAMES*2] = {0}; int MasterVol; + mem_zero(m_pMixBuffer, m_MaxFrames*2*sizeof(int)); + Frames = min(Frames, m_MaxFrames); // aquire lock while we are mixing lock_wait(m_SoundLock); @@ -98,7 +101,7 @@ static void Mix(short *pFinalOut, unsigned Frames) { // mix voice CVoice *v = &m_aVoices[i]; - int *pOut = aMixBuffer; + int *pOut = m_pMixBuffer; int Step = v->m_pSample->m_Channels; // setup input sources short *pInL = &v->m_pSample->m_pData[v->m_Tick*Step]; @@ -176,8 +179,8 @@ static void Mix(short *pFinalOut, unsigned Frames) for(unsigned i = 0; i < Frames; i++) { int j = i<<1; - int vl = ((aMixBuffer[j]*MasterVol)/101)>>8; - int vr = ((aMixBuffer[j+1]*MasterVol)/101)>>8; + int vl = ((m_pMixBuffer[j]*MasterVol)/101)>>8; + int vr = ((m_pMixBuffer[j+1]*MasterVol)/101)>>8; pFinalOut[j] = Int2Short(vl); pFinalOut[j+1] = Int2Short(vr); @@ -234,6 +237,9 @@ int CSound::Init() else dbg_msg("client/sound", "sound init successful"); + m_MaxFrames = g_Config.m_SndBufferSize*2; + m_pMixBuffer = (int *)mem_alloc(m_MaxFrames*2*sizeof(int), 1); + SDL_PauseAudio(0); m_SoundEnabled = 1; @@ -264,6 +270,11 @@ int CSound::Shutdown() SDL_CloseAudio(); SDL_QuitSubSystem(SDL_INIT_AUDIO); lock_destroy(m_SoundLock); + if(m_pMixBuffer) + { + mem_free(m_pMixBuffer); + m_pMixBuffer = 0; + } return 0; } |