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- /* Copyright (C) 1997, 1998 Aladdin Enterprises. All rights reserved.
-
- This software is provided AS-IS with no warranty, either express or
- implied.
-
- This software is distributed under license and may not be copied,
- modified or distributed except as expressly authorized under the terms
- of the license contained in the file LICENSE in this distribution.
-
- For more information about licensing, please refer to
- http://www.ghostscript.com/licensing/. For information on
- commercial licensing, go to http://www.artifex.com/licensing/ or
- contact Artifex Software, Inc., 101 Lucas Valley Road #110,
- San Rafael, CA 94903, U.S.A., +1(415)492-9861.
- */
- /* $Id: gsfunc3.h,v 1.5 2002/06/16 08:45:42 lpd Exp $ */
- /* Definitions for LL3 Functions */
- #ifndef gsfunc3_INCLUDED
- # define gsfunc3_INCLUDED
- #include "gsfunc.h"
- #include "gsdsrc.h"
- /* ---------------- Types and structures ---------------- */
- /*
- * Define the Function types.
- * See gsfunc.h for why gs_function_type_t can't be an enum type.
- */
- enum {
- function_type_ExponentialInterpolation = 2,
- function_type_1InputStitching = 3,
- /* For internal use only */
- function_type_ArrayedOutput = -1
- };
- /* Define Exponential Interpolation functions. */
- typedef struct gs_function_ElIn_params_s {
- gs_function_params_common;
- const float *C0; /* n, optional */
- const float *C1; /* n, optional */
- float N;
- } gs_function_ElIn_params_t;
- #define private_st_function_ElIn() /* in gsfunc.c */\
- gs_private_st_suffix_add2(st_function_ElIn, gs_function_ElIn_t,\
- "gs_function_ElIn_t", function_ElIn_enum_ptrs, function_ElIn_reloc_ptrs,\
- st_function, params.C0, params.C1)
- /* Define 1-Input Stitching functions. */
- typedef struct gs_function_1ItSg_params_s {
- gs_function_params_common;
- int k;
- const gs_function_t *const *Functions; /* k */
- const float *Bounds; /* k - 1 */
- const float *Encode; /* 2 x k */
- } gs_function_1ItSg_params_t;
- #define private_st_function_1ItSg() /* in gsfunc.c */\
- gs_private_st_suffix_add3(st_function_1ItSg, gs_function_1ItSg_t,\
- "gs_function_1ItSg_t", function_1ItSg_enum_ptrs, function_1ItSg_reloc_ptrs,\
- st_function, params.Functions, params.Bounds, params.Encode)
- /*
- * Define Arrayed Output functions. These consist of n m x 1 functions
- * whose outputs are assembled into the output of the arrayed function.
- * We use them to handle certain PostScript constructs that can accept
- * either a single n-output function or n 1-output functions.
- *
- * Note that for this type, and only this type, both Domain and Range
- * are ignored (0).
- */
- typedef struct gs_function_AdOt_params_s {
- gs_function_params_common;
- const gs_function_t *const *Functions; /* n */
- } gs_function_AdOt_params_t;
- #define private_st_function_AdOt() /* in gsfunc.c */\
- gs_private_st_suffix_add1(st_function_AdOt, gs_function_AdOt_t,\
- "gs_function_AdOt_t", function_AdOt_enum_ptrs, function_AdOt_reloc_ptrs,\
- st_function, params.Functions)
- /* ---------------- Procedures ---------------- */
- /* Allocate and initialize functions of specific types. */
- int gs_function_ElIn_init(gs_function_t ** ppfn,
- const gs_function_ElIn_params_t * params,
- gs_memory_t * mem);
- int gs_function_1ItSg_init(gs_function_t ** ppfn,
- const gs_function_1ItSg_params_t * params,
- gs_memory_t * mem);
- int gs_function_AdOt_init(gs_function_t ** ppfn,
- const gs_function_AdOt_params_t * params,
- gs_memory_t * mem);
- /* Free parameters of specific types. */
- void gs_function_ElIn_free_params(gs_function_ElIn_params_t * params,
- gs_memory_t * mem);
- void gs_function_1ItSg_free_params(gs_function_1ItSg_params_t * params,
- gs_memory_t * mem);
- void gs_function_AdOt_free_params(gs_function_AdOt_params_t * params,
- gs_memory_t * mem);
- #endif /* gsfunc3_INCLUDED */
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