1 files changed, 101 insertions, 0 deletions
diff --git a/sc4pd/headers/plugin_interface/SC_Unit.h b/sc4pd/headers/plugin_interface/SC_Unit.h
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+++ b/sc4pd/headers/plugin_interface/SC_Unit.h
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+/*
+	SuperCollider real time audio synthesis system
+    Copyright (c) 2002 James McCartney. All rights reserved.
+	http://www.audiosynth.com
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+*/
+ 
+
+#ifndef _SC_Unit_
+#define _SC_Unit_
+
+#include "SC_Types.h"
+
+typedef void (*UnitCtorFunc)(struct Unit* inUnit);
+typedef void (*UnitDtorFunc)(struct Unit* inUnit);
+
+typedef void (*UnitCalcFunc)(struct Unit *inThing, int inNumSamples);
+
+struct Unit 
+{
+	struct World *mWorld;
+	struct UnitDef *mUnitDef;
+	struct Graph *mParent;
+	uint16 mNumInputs, mNumOutputs;
+	int16 mCalcRate;
+	int16 mSpecialIndex;		// used by unary and binary ops
+	int16 mParentIndex;
+	int16 mDone;
+	
+	struct Wire **mInput, **mOutput;
+	struct Rate *mRate;
+	struct SC_Dimension *mDimension;
+	float **mInBuf, **mOutBuf;
+	
+	UnitCalcFunc mCalcFunc;
+	int mBufLength;
+};
+typedef struct Unit Unit;
+
+enum { 
+	kUnitDef_CantAliasInputsToOutputs = 1 
+};
+
+// easy macros, the unit variable must be named 'unit'.
+#ifndef SC_WIN32
+
+// These return float* pointers to input and output buffers.
+#define IN(index)  (unit->mInBuf[index])
+#define OUT(index) (unit->mOutBuf[index])
+
+// These return a float value. Used for control rate inputs and outputs.
+#define IN0(index)  (IN(index)[0])
+#define OUT0(index) (OUT(index)[0])
+
+#else
+
+// Win32 headers (included by C std library headers) define IN and OUT macros
+// for their own purposes. To avoid problems we don't define IN and OUT here
+// but define SC_IN and SC_OUT instead. Source files that use IN and OUT need
+// to include definitions of IN, and OUT referencing SC_IN and SC_OUT after
+// all headers have been included.
+#define SC_IN(index)  (unit->mInBuf[index])
+#define SC_OUT(index) (unit->mOutBuf[index])
+#define IN0(index)  (SC_IN(index)[0])
+#define OUT0(index) (SC_OUT(index)[0])
+
+#endif
+
+// get the rate of the input.
+#define INRATE(index) (unit->mInput[index]->mCalcRate)
+
+// set the calculation function
+#define SETCALC(func) (unit->mCalcFunc = (UnitCalcFunc)&func)
+
+// calculate a slope for control rate interpolation to audio rate.
+#define CALCSLOPE(next,prev) ((next - prev) * unit->mRate->mSlopeFactor)
+
+// get useful values
+#define SAMPLERATE (unit->mRate->mSampleRate)
+#define SAMPLEDUR (unit->mRate->mSampleDur)
+#define BUFLENGTH (unit->mBufLength)
+#define BUFRATE (unit->mRate->mBufRate)
+#define BUFDUR (unit->mRate->mBufDuration)
+
+typedef void (*UnitCmdFunc)(struct Unit *unit, struct sc_msg_iter *args);
+typedef void (*PlugInCmdFunc)(World *inWorld, void* inUserData, struct sc_msg_iter *args, void *replyAddr);
+
+#endif