Move some sources to a separate directory

To begin separating the ALC interfaces from internal ones.

1 files changed, 103 insertions, 0 deletions

diff --git a/core/devformat.h b/core/devformat.h
new file mode 100644
index 00000000..bcd42539
--- /dev/null
+++ b/core/devformat.h
@@ -0,0 +1,103 @@
+#ifndef CORE_DEVFORMAT_H
+#define CORE_DEVFORMAT_H
+
+#include <cstdint>
+
+
+using uint = unsigned int;
+
+enum Channel {
+    FrontLeft = 0,
+    FrontRight,
+    FrontCenter,
+    LFE,
+    BackLeft,
+    BackRight,
+    BackCenter,
+    SideLeft,
+    SideRight,
+
+    TopFrontLeft,
+    TopFrontCenter,
+    TopFrontRight,
+    TopCenter,
+    TopBackLeft,
+    TopBackCenter,
+    TopBackRight,
+
+    MaxChannels
+};
+
+
+/* Device formats */
+enum DevFmtType : unsigned char {
+    DevFmtByte,
+    DevFmtUByte,
+    DevFmtShort,
+    DevFmtUShort,
+    DevFmtInt,
+    DevFmtUInt,
+    DevFmtFloat,
+
+    DevFmtTypeDefault = DevFmtFloat
+};
+enum DevFmtChannels : unsigned char {
+    DevFmtMono,
+    DevFmtStereo,
+    DevFmtQuad,
+    DevFmtX51,
+    DevFmtX61,
+    DevFmtX71,
+    DevFmtAmbi3D,
+
+    /* Similar to 5.1, except using rear channels instead of sides */
+    DevFmtX51Rear,
+
+    DevFmtChannelsDefault = DevFmtStereo
+};
+#define MAX_OUTPUT_CHANNELS  16
+
+/* DevFmtType traits, providing the type, etc given a DevFmtType. */
+template<DevFmtType T>
+struct DevFmtTypeTraits { };
+
+template<>
+struct DevFmtTypeTraits<DevFmtByte> { using Type = int8_t; };
+template<>
+struct DevFmtTypeTraits<DevFmtUByte> { using Type = uint8_t; };
+template<>
+struct DevFmtTypeTraits<DevFmtShort> { using Type = int16_t; };
+template<>
+struct DevFmtTypeTraits<DevFmtUShort> { using Type = uint16_t; };
+template<>
+struct DevFmtTypeTraits<DevFmtInt> { using Type = int32_t; };
+template<>
+struct DevFmtTypeTraits<DevFmtUInt> { using Type = uint32_t; };
+template<>
+struct DevFmtTypeTraits<DevFmtFloat> { using Type = float; };
+
+
+uint BytesFromDevFmt(DevFmtType type) noexcept;
+uint ChannelsFromDevFmt(DevFmtChannels chans, uint ambiorder) noexcept;
+inline uint FrameSizeFromDevFmt(DevFmtChannels chans, DevFmtType type, uint ambiorder) noexcept
+{ return ChannelsFromDevFmt(chans, ambiorder) * BytesFromDevFmt(type); }
+
+const char *DevFmtTypeString(DevFmtType type) noexcept;
+const char *DevFmtChannelsString(DevFmtChannels chans) noexcept;
+
+enum class DevAmbiLayout : bool {
+    FuMa,
+    ACN,
+
+    Default = ACN
+};
+
+enum class DevAmbiScaling : unsigned char {
+    FuMa,
+    SN3D,
+    N3D,
+
+    Default = SN3D
+};
+
+#endif /* CORE_DEVFORMAT_H */