]> git.xonotic.org Git - xonotic/darkplaces.git/blobdiff - snd_mix.c
physics: fix and refactor unsticking
[xonotic/darkplaces.git] / snd_mix.c
index 4f3310bfcf1a83b3ef3eaad472b70fa7e850ceae..d8ea1dbe3764a297ead5aef44712325d5d901ee4 100644 (file)
--- a/snd_mix.c
+++ b/snd_mix.c
@@ -24,11 +24,13 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 extern cvar_t snd_softclip;
 
 static portable_sampleframe_t paintbuffer[PAINTBUFFER_SIZE];
-static portable_sampleframe_t paintbuffer_unswapped[PAINTBUFFER_SIZE];
 
 extern speakerlayout_t snd_speakerlayout; // for querying the listeners
 
-static void S_CaptureAVISound(const portable_sampleframe_t *paintbuffer, size_t length)
+#ifdef CONFIG_VIDEO_CAPTURE
+static portable_sampleframe_t paintbuffer_unswapped[PAINTBUFFER_SIZE];
+
+static void S_CaptureAVISound(const portable_sampleframe_t *sampleframes, size_t length)
 {
        size_t i;
        unsigned int j;
@@ -41,15 +43,16 @@ static void S_CaptureAVISound(const portable_sampleframe_t *paintbuffer, size_t
        {
                unsigned int j0 = snd_speakerlayout.listeners[j].channel_unswapped;
                for(i = 0; i < length; ++i)
-                       paintbuffer_unswapped[i].sample[j0] = paintbuffer[i].sample[j];
+                       paintbuffer_unswapped[i].sample[j0] = sampleframes[i].sample[j];
        }
 
        SCR_CaptureVideo_SoundFrame(paintbuffer_unswapped, length);
 }
+#endif
 
 extern cvar_t snd_softclip;
 
-static void S_SoftClipPaintBuffer(portable_sampleframe_t *painted_ptr, int nbframes, int width, int channels)
+static void S_SoftClipPaintBuffer(portable_sampleframe_t *painted_ptr, int nbframes, int width, int nchannels)
 {
        int i;
 
@@ -68,7 +71,7 @@ static void S_SoftClipPaintBuffer(portable_sampleframe_t *painted_ptr, int nbfra
                maxvol = max(1.0f, maxvol * (1.0f - nbframes / (0.4f * snd_renderbuffer->format.speed)));
 #define SOFTCLIP(x) if(fabs(x)>maxvol) maxvol=fabs(x); (x) /= maxvol;
 
-               if (channels == 8)  // 7.1 surround
+               if (nchannels == 8)  // 7.1 surround
                {
                        for (i = 0;i < nbframes;i++, p++)
                        {
@@ -82,7 +85,7 @@ static void S_SoftClipPaintBuffer(portable_sampleframe_t *painted_ptr, int nbfra
                                SOFTCLIP(p->sample[7]);
                        }
                }
-               else if (channels == 6)  // 5.1 surround
+               else if (nchannels == 6)  // 5.1 surround
                {
                        for (i = 0; i < nbframes; i++, p++)
                        {
@@ -94,7 +97,7 @@ static void S_SoftClipPaintBuffer(portable_sampleframe_t *painted_ptr, int nbfra
                                SOFTCLIP(p->sample[5]);
                        }
                }
-               else if (channels == 4)  // 4.0 surround
+               else if (nchannels == 4)  // 4.0 surround
                {
                        for (i = 0; i < nbframes; i++, p++)
                        {
@@ -104,7 +107,7 @@ static void S_SoftClipPaintBuffer(portable_sampleframe_t *painted_ptr, int nbfra
                                SOFTCLIP(p->sample[3]);
                        }
                }
-               else if (channels == 2)  // 2.0 stereo
+               else if (nchannels == 2)  // 2.0 stereo
                {
                        for (i = 0; i < nbframes; i++, p++)
                        {
@@ -112,7 +115,7 @@ static void S_SoftClipPaintBuffer(portable_sampleframe_t *painted_ptr, int nbfra
                                SOFTCLIP(p->sample[1]);
                        }
                }
-               else if (channels == 1)  // 1.0 mono
+               else if (nchannels == 1)  // 1.0 mono
                {
                        for (i = 0; i < nbframes; i++, p++)
                        {
@@ -123,16 +126,73 @@ static void S_SoftClipPaintBuffer(portable_sampleframe_t *painted_ptr, int nbfra
        }
 }
 
-static void S_ConvertPaintBuffer(portable_sampleframe_t *painted_ptr, void *rb_ptr, int nbframes, int width, int channels)
+static void S_ConvertPaintBuffer(portable_sampleframe_t *painted_ptr, void *rb_ptr, int nbframes, int width, int nchannels)
 {
-       int i, val;
+       int i;
+       float val;
+       if (width == 4)  // 32bit float
+       {
+               float *snd_out = (float*)rb_ptr;
+               if (nchannels == 8)  // 7.1 surround
+               {
+                       for (i = 0; i < nbframes; i++, painted_ptr++)
+                       {
+                               *snd_out++ = painted_ptr->sample[0];
+                               *snd_out++ = painted_ptr->sample[1];
+                               *snd_out++ = painted_ptr->sample[2];
+                               *snd_out++ = painted_ptr->sample[3];
+                               *snd_out++ = painted_ptr->sample[4];
+                               *snd_out++ = painted_ptr->sample[5];
+                               *snd_out++ = painted_ptr->sample[6];
+                               *snd_out++ = painted_ptr->sample[7];
+                       }
+               }
+               else if (nchannels == 6)  // 5.1 surround
+               {
+                       for (i = 0; i < nbframes; i++, painted_ptr++)
+                       {
+                               *snd_out++ = painted_ptr->sample[0];
+                               *snd_out++ = painted_ptr->sample[1];
+                               *snd_out++ = painted_ptr->sample[2];
+                               *snd_out++ = painted_ptr->sample[3];
+                               *snd_out++ = painted_ptr->sample[4];
+                               *snd_out++ = painted_ptr->sample[5];
+                       }
+               }
+               else if (nchannels == 4)  // 4.0 surround
+               {
+                       for (i = 0; i < nbframes; i++, painted_ptr++)
+                       {
+                               *snd_out++ = painted_ptr->sample[0];
+                               *snd_out++ = painted_ptr->sample[1];
+                               *snd_out++ = painted_ptr->sample[2];
+                               *snd_out++ = painted_ptr->sample[3];
+                       }
+               }
+               else if (nchannels == 2)  // 2.0 stereo
+               {
+                       for (i = 0; i < nbframes; i++, painted_ptr++)
+                       {
+                               *snd_out++ = painted_ptr->sample[0];
+                               *snd_out++ = painted_ptr->sample[1];
+                       }
+               }
+               else if (nchannels == 1)  // 1.0 mono
+               {
+                       for (i = 0; i < nbframes; i++, painted_ptr++)
+                       {
+                               *snd_out++ = painted_ptr->sample[0];
+                       }
+               }
 
-       // FIXME: add 24bit and 32bit float formats
-       // FIXME: optimize with SSE intrinsics?
-       if (width == 2)  // 16bit
+               // noise is really really annoying
+               if (cls.timedemo)
+                       memset(rb_ptr, 0, nbframes * nchannels * width);
+       }
+       else if (width == 2)  // 16bit
        {
                short *snd_out = (short*)rb_ptr;
-               if (channels == 8)  // 7.1 surround
+               if (nchannels == 8)  // 7.1 surround
                {
                        for (i = 0;i < nbframes;i++, painted_ptr++)
                        {
@@ -146,7 +206,7 @@ static void S_ConvertPaintBuffer(portable_sampleframe_t *painted_ptr, void *rb_p
                                val = (int)(painted_ptr->sample[7] * 32768.0f);*snd_out++ = bound(-32768, val, 32767);
                        }
                }
-               else if (channels == 6)  // 5.1 surround
+               else if (nchannels == 6)  // 5.1 surround
                {
                        for (i = 0; i < nbframes; i++, painted_ptr++)
                        {
@@ -158,7 +218,7 @@ static void S_ConvertPaintBuffer(portable_sampleframe_t *painted_ptr, void *rb_p
                                val = (int)(painted_ptr->sample[5] * 32768.0f);*snd_out++ = bound(-32768, val, 32767);
                        }
                }
-               else if (channels == 4)  // 4.0 surround
+               else if (nchannels == 4)  // 4.0 surround
                {
                        for (i = 0; i < nbframes; i++, painted_ptr++)
                        {
@@ -168,7 +228,7 @@ static void S_ConvertPaintBuffer(portable_sampleframe_t *painted_ptr, void *rb_p
                                val = (int)(painted_ptr->sample[3] * 32768.0f);*snd_out++ = bound(-32768, val, 32767);
                        }
                }
-               else if (channels == 2)  // 2.0 stereo
+               else if (nchannels == 2)  // 2.0 stereo
                {
                        for (i = 0; i < nbframes; i++, painted_ptr++)
                        {
@@ -176,7 +236,7 @@ static void S_ConvertPaintBuffer(portable_sampleframe_t *painted_ptr, void *rb_p
                                val = (int)(painted_ptr->sample[1] * 32768.0f);*snd_out++ = bound(-32768, val, 32767);
                        }
                }
-               else if (channels == 1)  // 1.0 mono
+               else if (nchannels == 1)  // 1.0 mono
                {
                        for (i = 0; i < nbframes; i++, painted_ptr++)
                        {
@@ -186,12 +246,12 @@ static void S_ConvertPaintBuffer(portable_sampleframe_t *painted_ptr, void *rb_p
 
                // noise is really really annoying
                if (cls.timedemo)
-                       memset(rb_ptr, 0, nbframes * channels * width);
+                       memset(rb_ptr, 0, nbframes * nchannels * width);
        }
        else  // 8bit
        {
                unsigned char *snd_out = (unsigned char*)rb_ptr;
-               if (channels == 8)  // 7.1 surround
+               if (nchannels == 8)  // 7.1 surround
                {
                        for (i = 0; i < nbframes; i++, painted_ptr++)
                        {
@@ -205,7 +265,7 @@ static void S_ConvertPaintBuffer(portable_sampleframe_t *painted_ptr, void *rb_p
                                val = (int)(painted_ptr->sample[7] * 128.0f) + 128; *snd_out++ = bound(0, val, 255);
                        }
                }
-               else if (channels == 6)  // 5.1 surround
+               else if (nchannels == 6)  // 5.1 surround
                {
                        for (i = 0; i < nbframes; i++, painted_ptr++)
                        {
@@ -217,7 +277,7 @@ static void S_ConvertPaintBuffer(portable_sampleframe_t *painted_ptr, void *rb_p
                                val = (int)(painted_ptr->sample[5] * 128.0f) + 128; *snd_out++ = bound(0, val, 255);
                        }
                }
-               else if (channels == 4)  // 4.0 surround
+               else if (nchannels == 4)  // 4.0 surround
                {
                        for (i = 0; i < nbframes; i++, painted_ptr++)
                        {
@@ -227,7 +287,7 @@ static void S_ConvertPaintBuffer(portable_sampleframe_t *painted_ptr, void *rb_p
                                val = (int)(painted_ptr->sample[3] * 128.0f) + 128; *snd_out++ = bound(0, val, 255);
                        }
                }
-               else if (channels == 2)  // 2.0 stereo
+               else if (nchannels == 2)  // 2.0 stereo
                {
                        for (i = 0; i < nbframes; i++, painted_ptr++)
                        {
@@ -235,7 +295,7 @@ static void S_ConvertPaintBuffer(portable_sampleframe_t *painted_ptr, void *rb_p
                                val = (int)(painted_ptr->sample[1] * 128.0f) + 128; *snd_out++ = bound(0, val, 255);
                        }
                }
-               else if (channels == 1)  // 1.0 mono
+               else if (nchannels == 1)  // 1.0 mono
                {
                        for (i = 0;i < nbframes;i++, painted_ptr++)
                        {
@@ -245,11 +305,71 @@ static void S_ConvertPaintBuffer(portable_sampleframe_t *painted_ptr, void *rb_p
 
                // noise is really really annoying
                if (cls.timedemo)
-                       memset(rb_ptr, 128, nbframes * channels);
+                       memset(rb_ptr, 128, nbframes * nchannels);
        }
 }
 
 
+
+/*
+===============================================================================
+
+UNDERWATER EFFECT
+
+Muffles the intensity of sounds when the player is underwater
+
+===============================================================================
+*/
+
+static struct
+{
+       float intensity;
+       float alpha;
+       float accum[SND_LISTENERS];
+}
+underwater = {0.f, 1.f, {0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f}};
+
+void S_SetUnderwaterIntensity(void)
+{
+       float target = cl.view_underwater ? bound(0.f, snd_waterfx.value, 2.f) : 0.f;
+
+       if (underwater.intensity < target)
+       {
+               underwater.intensity += cl.realframetime * 4.f;
+               underwater.intensity = min(underwater.intensity, target);
+       }
+       else if (underwater.intensity > target)
+       {
+               underwater.intensity -= cl.realframetime * 4.f;
+               underwater.intensity = max(underwater.intensity, target);
+       }
+
+       underwater.alpha = underwater.intensity ? exp(-underwater.intensity * log(12.f)) : 1.f;
+}
+
+static void S_UnderwaterFilter(int endtime)
+{
+       int i;
+       int sl;
+
+       if (!underwater.intensity)
+       {
+               if (endtime > 0)
+                       for (sl = 0; sl < SND_LISTENERS; sl++)
+                               underwater.accum[sl] = paintbuffer[endtime-1].sample[sl];
+               return;
+       }
+
+       for (i = 0; i < endtime; i++)
+               for (sl = 0; sl < SND_LISTENERS; sl++)
+               {
+                       underwater.accum[sl] += underwater.alpha * (paintbuffer[i].sample[sl] - underwater.accum[sl]);
+                       paintbuffer[i].sample[sl] = underwater.accum[sl];
+               }
+}
+
+
+
 /*
 ===============================================================================
 
@@ -287,8 +407,8 @@ void S_MixToBuffer(void *stream, unsigned int bufferframes)
        double posd;
        double speedd;
        float maxvol;
-       qboolean looping;
-       qboolean silent;
+       qbool looping;
+       qbool silent;
 
        // mix as many times as needed to fill the requested buffer
        while (bufferframes)
@@ -301,7 +421,7 @@ void S_MixToBuffer(void *stream, unsigned int bufferframes)
 
                // paint in the channels.
                // channels with zero volumes still advance in time but don't paint.
-               ch = channels;
+               ch = channels; // cppcheck complains here but it is wrong, channels is a channel_t[MAX_CHANNELS] and not an int
                for (channelindex = 0;channelindex < (int)total_channels;channelindex++, ch++)
                {
                        sfx = ch->sfx;
@@ -360,7 +480,6 @@ void S_MixToBuffer(void *stream, unsigned int bufferframes)
 
                        // do the actual paint now (may skip work if silent)
                        paint = paintbuffer;
-                       wantframes = totalmixframes;
                        istartframe = 0;
                        for (wantframes = totalmixframes;wantframes > 0;posd += count * speedd, wantframes -= count)
                        {
@@ -521,8 +640,13 @@ void S_MixToBuffer(void *stream, unsigned int bufferframes)
 
                S_SoftClipPaintBuffer(paintbuffer, totalmixframes, snd_renderbuffer->format.width, snd_renderbuffer->format.channels);
 
+               S_UnderwaterFilter(totalmixframes);
+
+
+#ifdef CONFIG_VIDEO_CAPTURE
                if (!snd_usethreadedmixing)
                        S_CaptureAVISound(paintbuffer, totalmixframes);
+#endif
 
                S_ConvertPaintBuffer(paintbuffer, outbytes, totalmixframes, snd_renderbuffer->format.width, snd_renderbuffer->format.channels);