1 files changed, 93 insertions, 0 deletions
diff --git a/imdi/imdi.h b/imdi/imdi.h
new file mode 100644
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--- /dev/null
+++ b/imdi/imdi.h
@@ -0,0 +1,93 @@
+#ifndef IMDI_H
+#define IMDI_H
+
+/* Integer Multi-Dimensional Interpolation */
+
+/*
+ * Copyright 2000 - 2007 Graeme W. Gill
+ * All rights reserved.
+ *
+ * This material is licenced under the GNU AFFERO GENERAL PUBLIC LICENSE Version 3 :-
+ * see the License.txt file for licencing details.
+ */
+
+/*
+ * This file provides the common definitions for IMDI, and
+ * in particular, the runtime conversion object. 
+ * Actual runtime details are kept opaque.
+ */
+
+#include "imdi_utl.h"
+#include "imdi_arch.h"
+#include "imdi_gen.h"
+
+/* IMDI Object */
+struct _imdi {
+	void *impl;			/* Opaque pointer to implementation information (type imdi_imp *) */
+
+	/* Do the interpolation. */
+
+	/* Each pointer corresponds to the colors plane for plane interleaved. */
+	/* pointer[0] is used for pixel interleave. */
+	
+	/* Stride is only obeyed if the appropriate option flag was set */
+	/* in new_imdi, and is in pixel components, and effectively defaults */
+	/* to 1 for plane interleaved, and id and od (adjusted for skip) for pixel interleave, */
+	/* so stride is in color components (NOT bytes) */
+	/* Output pointers and data must only reference non-skipped output channels. */
+
+	/* Note that once an imdi is created, multiple can call interp() without */
+	/* interfering with each other, allowing parallel execution. */
+	void (*interp)(struct _imdi *s, void **outp, int outst,		/* Ouput pointers and stride */
+	                                void **inp, int inst,		/* Input pointers and stride */
+	                                unsigned int npixels);		/* Number of pixels */
+
+	/* Return some information about the imdi */
+	void (*info)(struct _imdi *s, unsigned long *size, int *gres, int *sres);
+
+	/* Get the per output channel check flags (bit is indexed by callback channel) */
+	/* Flag gets set if output != checkv */
+	unsigned int (*get_check)(struct _imdi *s);
+	
+	/* Reset the output check flags (flag is not reset by interp) */
+	void (*reset_check)(struct _imdi *s);
+
+	/* Delete this object */
+	void (*del)(struct _imdi *s);
+
+}; typedef struct _imdi imdi;
+
+/* Create a new imdi. */
+/* Return NULL if request is not supported */
+imdi *new_imdi(
+	int id,				  /* Number of input dimensions */
+	int od,				  /* Number of output lookup dimensions */
+	                      /* Number of output channels written = od - no. of oopt skip flags */
+	imdi_pixrep in,		  /* Input pixel representation */
+	int in_signed,		  /* Bit flag per channel, NZ if treat as signed */
+	int *inm,			  /* Input raster channel to callback channel mapping, NULL for none. */
+	imdi_iprec iprec,	  /* Internal processing precision */
+	imdi_pixrep out,	  /* Output pixel representation */
+	int out_signed,		  /* Bit flag per channel, NZ if treat as signed */
+	int *outm,			  /* Output raster channel to callback channel mapping, NULL for none. */
+	                      /* Mapping must include skipped channels. */
+	int res,			  /* Desired table resolution */
+	imdi_ooptions oopt,   /* Output per channel options (by callback channel) */
+	unsigned int *checkv, /* Output channel check values (by callback channel, NULL == 0) */
+	imdi_options opt,	  /* Direction and stride options */
+
+	/* Callbacks to lookup the imdi table values. */
+	/* (Skip output channels are looked up) */
+	void (*input_curves) (void *cntx, double *out_vals, double *in_vals),
+	void (*md_table)     (void *cntx, double *out_vals, double *in_vals),
+	void (*output_curves)(void *cntx, double *out_vals, double *in_vals),
+	void *cntx		/* Context to callbacks */
+);
+
+#endif /* IMDI_H */
+
+
+
+
+
+