From 471f905fbd5f665148d2e9f40aca7ee6b1bead7b Mon Sep 17 00:00:00 2001
From: Chris Robinson <chris.kcat@gmail.com>
Date: Wed, 31 Jul 2019 10:09:43 -0700
Subject: Use enums for the resampler and mixer template tags

---
 alc/mixer/defs.h | 56 +++++++++++++++++++++++++++-----------------------------
 1 file changed, 27 insertions(+), 29 deletions(-)

diff --git a/alc/mixer/defs.h b/alc/mixer/defs.h
index 3e5d1125..0cd4162a 100644
--- a/alc/mixer/defs.h
+++ b/alc/mixer/defs.h
@@ -1,46 +1,44 @@
 #ifndef MIXER_DEFS_H
 #define MIXER_DEFS_H
 
-#include "AL/alc.h"
 #include "AL/al.h"
 
 #include "alcmain.h"
-#include "alu.h"
 #include "alspan.h"
-
-
-struct MixGains;
-struct MixHrtfFilter;
-struct HrtfState;
-struct DirectHrtfState;
-
-
-struct CTag { };
-struct SSETag { };
-struct SSE2Tag { };
-struct SSE3Tag { };
-struct SSE4Tag { };
-struct NEONTag { };
-
-struct CopyTag { };
-struct PointTag { };
-struct LerpTag { };
-struct CubicTag { };
-struct BSincTag { };
-
-template<typename TypeTag, typename InstTag>
+#include "alu.h"
+#include "hrtf.h"
+
+
+enum InstSetType {
+    CTag,
+    SSETag,
+    SSE2Tag,
+    SSE3Tag,
+    SSE4Tag,
+    NEONTag
+};
+
+enum ResampleType {
+    CopyTag,
+    PointTag,
+    LerpTag,
+    CubicTag,
+    BSincTag
+};
+
+template<ResampleType TypeTag, InstSetType InstTag>
 const ALfloat *Resample_(const InterpState *state, const ALfloat *RESTRICT src, ALsizei frac, ALint increment, ALfloat *RESTRICT dst, ALsizei dstlen);
 
-template<typename InstTag>
+template<InstSetType InstTag>
 void Mix_(const ALfloat *data, const al::span<FloatBufferLine> OutBuffer, ALfloat *CurrentGains, const ALfloat *TargetGains, const ALsizei Counter, const ALsizei OutPos, const ALsizei BufferSize);
-template<typename InstTag>
+template<InstSetType InstTag>
 void MixRow_(FloatBufferLine &OutBuffer, const ALfloat *Gains, const al::span<const FloatBufferLine> InSamples, const ALsizei InPos, const ALsizei BufferSize);
 
-template<typename InstTag>
+template<InstSetType InstTag>
 void MixHrtf_(FloatBufferLine &LeftOut, FloatBufferLine &RightOut, const ALfloat *InSamples, float2 *AccumSamples, const ALsizei OutPos, const ALsizei IrSize, MixHrtfFilter *hrtfparams, const ALsizei BufferSize);
-template<typename InstTag>
+template<InstSetType InstTag>
 void MixHrtfBlend_(FloatBufferLine &LeftOut, FloatBufferLine &RightOut, const ALfloat *InSamples, float2 *AccumSamples, const ALsizei OutPos, const ALsizei IrSize, const HrtfFilter *oldparams, MixHrtfFilter *newparams, const ALsizei BufferSize);
-template<typename InstTag>
+template<InstSetType InstTag>
 void MixDirectHrtf_(FloatBufferLine &LeftOut, FloatBufferLine &RightOut, const al::span<const FloatBufferLine> InSamples, float2 *AccumSamples, DirectHrtfState *State, const ALsizei BufferSize);
 
 /* Vectorized resampler helpers */
-- 
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