Move some declarations to more appropriate headers

alc/alcmain.h

@@ -29,6 +29,7 @@
 #include "hrtf.h"
 #include "inprogext.h"
 #include "intrusive_ptr.h"
+#include "mixer/defs.h"
 #include "vector.h"
 
 class BFormatDec;
@@ -154,12 +155,6 @@ struct BFChannelConfig {
     ALuint Index;
 };
 
-/* Maximum number of samples to pad on the ends of a buffer for resampling.
- * Note that the padding is symmetric (half at the beginning and half at the
- * end)!
- */
-#define MAX_RESAMPLER_PADDING 48
-
 
 struct MixParams {
     /* Coefficient channel mapping for mixing to the buffer. */

alc/alu.h

@@ -6,13 +6,15 @@
 #include <cstddef>
 #include <type_traits>
 
-#include "AL/al.h"
-
-#include "alcmain.h"
 #include "alspan.h"
+#include "ambidefs.h"
+#include "core/bufferline.h"
+#include "core/devformat.h"
 
 struct ALCcontext;
+struct ALCdevice;
 struct ALeffectslot;
+struct MixParams;
 
 
 #define MAX_PITCH  10
@@ -37,11 +39,6 @@ constexpr float AirAbsorbGainHF{0.99426f}; /* -0.05dB */
 constexpr float ReverbDecayGain{0.001f}; /* -60 dB */
 
 
-constexpr int MixerFracBits{12};
-constexpr int MixerFracOne{1 << MixerFracBits};
-constexpr int MixerFracMask{MixerFracOne - 1};
-
-
 inline float lerp(float val1, float val2, float mu) noexcept
 { return val1 + (val2-val1)*mu; }
 inline float cubic(float val1, float val2, float val3, float val4, float mu) noexcept

alc/mixer/defs.h

@@ -1,15 +1,29 @@
 #ifndef MIXER_DEFS_H
 #define MIXER_DEFS_H
 
-#include "alcmain.h"
-#include "alspan.h"
-#include "alu.h"
-#include "hrtf.h"
+#include <array>
 
+#include "alspan.h"
+#include "core/bufferline.h"
+
+struct DirectHrtfState;
+struct HrtfFilter;
 union InterpState;
 struct MixHrtfFilter;
 
 using uint = unsigned int;
+using float2 = std::array<float,2>;
+
+
+constexpr int MixerFracBits{12};
+constexpr int MixerFracOne{1 << MixerFracBits};
+constexpr int MixerFracMask{MixerFracOne - 1};
+
+/* Maximum number of samples to pad on the ends of a buffer for resampling.
+ * Note that the padding is symmetric (half at the beginning and half at the
+ * end)!
+ */
+#define MAX_RESAMPLER_PADDING 48
 
 
 template<typename TypeTag, typename InstTag>

alc/voice.h

@@ -12,6 +12,7 @@
 #include "filters/nfc.h"
 #include "filters/splitter.h"
 #include "hrtf.h"
+#include "mixer/defs.h"
 
 struct EffectSlot;
 struct BufferlistItem;