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68 lines
1.9 KiB
Diff
68 lines
1.9 KiB
Diff
From de72257b18ac1a07ed770f20bede6b42e5baa99b Mon Sep 17 00:00:00 2001
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From: Mark Harmstone <mark@harmstone.com>
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Date: Sun, 22 Mar 2015 15:38:15 +0000
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Subject: dsound: Add EAX VerbPass stub.
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---
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dlls/dsound/eax.c | 37 ++++++++++++++++++++++++++++++++++++-
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1 file changed, 36 insertions(+), 1 deletion(-)
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diff --git a/dlls/dsound/eax.c b/dlls/dsound/eax.c
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index babc2a7..6ac4cdf 100644
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--- a/dlls/dsound/eax.c
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+++ b/dlls/dsound/eax.c
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@@ -92,6 +92,14 @@ static const EFXEAXREVERBPROPERTIES efx_presets[] = {
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{ 0.0625f, 0.5000f, 0.3162f, 0.8404f, 1.0000f, 7.5600f, 0.9100f, 1.0000f, 0.4864f, 0.0200f, { 0.0000f, 0.0000f, 0.0000f }, 2.4378f, 0.0300f, { 0.0000f, 0.0000f, 0.0000f }, 0.2500f, 0.0000f, 4.0000f, 1.0000f, 0.9943f, 5000.0000f, 250.0000f, 0.0000f, 0x0 } /* psychotic */
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};
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+static void VerbPass(IDirectSoundBufferImpl* dsb, float in, float* out)
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+{
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+ /* stub */
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+
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+ /* Step all delays forward one sample. */
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+ dsb->eax.Offset++;
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+}
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+
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static unsigned int fastf2u(float f)
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{
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return (unsigned int)f;
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@@ -99,7 +107,34 @@ static unsigned int fastf2u(float f)
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void process_eax_buffer(IDirectSoundBufferImpl *dsb, float *buf, DWORD count)
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{
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- /* stub */
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+ int i;
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+ float* out;
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+ float gain;
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+
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+ if (dsb->device->eax.volume == 0.0f)
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+ return;
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+
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+ if (dsb->mix_channels > 1) {
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+ WARN("EAX not yet supported for non-mono sources\n");
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+ return;
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+ }
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+
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+ out = HeapAlloc(GetProcessHeap(), 0, sizeof(float)*count*4);
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+
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+ for (i = 0; i < count; i++) {
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+ VerbPass(dsb, buf[i], &out[i*4]);
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+ }
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+
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+ if (dsb->eax.reverb_mix == EAX_REVERBMIX_USEDISTANCE)
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+ gain = 1.0f; /* FIXME - should be calculated from distance */
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+ else
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+ gain = dsb->eax.reverb_mix;
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+
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+ for (i = 0; i < count; i++) {
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+ buf[i] += gain * out[i*4];
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+ }
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+
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+ HeapFree(GetProcessHeap(), 0, out);
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}
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static unsigned int NextPowerOf2(unsigned int value)
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--
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2.3.3
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