wine-staging/patches/dsound-EAX/0012-dsound-Add-EAX-VerbPass-stub.patch
2015-03-27 21:24:40 +00:00

82 lines
2.4 KiB
Diff

From 035fe59abb8f8e8444421198838619d532ae840e Mon Sep 17 00:00:00 2001
From: Mark Harmstone <mark@harmstone.com>
Date: Sun, 22 Mar 2015 15:38:15 +0000
Subject: [PATCH 12/18] dsound: Add EAX VerbPass stub.
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---
dlls/dsound/eax.c | 37 ++++++++++++++++++++++++++++++++++++-
1 file changed, 36 insertions(+), 1 deletion(-)
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diff --git a/dlls/dsound/eax.c b/dlls/dsound/eax.c
index d12cdd0..82b5a6a 100644
--- a/dlls/dsound/eax.c
+++ b/dlls/dsound/eax.c
@@ -92,6 +92,14 @@ static const EFXEAXREVERBPROPERTIES efx_presets[] = {
{ 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 */
};
+static void VerbPass(IDirectSoundBufferImpl* dsb, float in, float* out)
+{
+ /* stub */
+
+ /* Step all delays forward one sample. */
+ dsb->eax.Offset++;
+}
+
static unsigned int fastf2u(float f)
{
return (unsigned int)f;
@@ -99,7 +107,34 @@ static unsigned int fastf2u(float f)
void process_eax_buffer(IDirectSoundBufferImpl* dsb, float* buf, DWORD count)
{
- /* stub */
+ int i;
+ float* out;
+ float gain;
+
+ if (dsb->device->eax.volume == 0.0f)
+ return;
+
+ if (dsb->mix_channels > 1) {
+ WARN("EAX not yet supported for non-mono sources\n");
+ return;
+ }
+
+ out = HeapAlloc(GetProcessHeap(), 0, sizeof(float)*count*4);
+
+ for (i = 0; i < count; i++) {
+ VerbPass(dsb, buf[i], &out[i*4]);
+ }
+
+ if (dsb->eax.reverb_mix == EAX_REVERBMIX_USEDISTANCE)
+ gain = 1.0f; /* FIXME - should be calculated from distance */
+ else
+ gain = dsb->eax.reverb_mix;
+
+ for (i = 0; i < count; i++) {
+ buf[i] += gain * out[i*4];
+ }
+
+ HeapFree(GetProcessHeap(), 0, out);
}
static unsigned int NextPowerOf2(unsigned int value)
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