xref: /plan9/sys/src/cmd/gs/src/gdevpdfc.h (revision 593dc095aefb2a85c828727bbfa9da139a49bdf4)
1 /* Copyright (C) 2001 Aladdin Enterprises.  All rights reserved.
2 
3   This software is provided AS-IS with no warranty, either express or
4   implied.
5 
6   This software is distributed under license and may not be copied,
7   modified or distributed except as expressly authorized under the terms
8   of the license contained in the file LICENSE in this distribution.
9 
10   For more information about licensing, please refer to
11   http://www.ghostscript.com/licensing/. For information on
12   commercial licensing, go to http://www.artifex.com/licensing/ or
13   contact Artifex Software, Inc., 101 Lucas Valley Road #110,
14   San Rafael, CA  94903, U.S.A., +1(415)492-9861.
15 */
16 
17 /* $Id: gdevpdfc.h,v 1.4 2002/05/07 19:56:46 lpd Exp $ */
18 /* Internal color space writing interfaces for pdfwrite driver. */
19 
20 #ifndef gdevpdfc_INCLUDED
21 #  define gdevpdfc_INCLUDED
22 
23 /* ------ Exported by gdevpdfc.c for gdevpdfk.c ------ */
24 
25 /* Define the special cases for CIEBased spaces. */
26 typedef enum {
27     ONE_STEP_NOT,		/* not one-step */
28     ONE_STEP_LMN,		/* DecodeLMN (scalar cache) + matrix */
29     ONE_STEP_ABC		/* DecodeABC (vector cache) + matrix */
30 } cie_cache_one_step_t;
31 
32 /*
33  * Finish creating a CIE-based color space (Calxxx or Lab.)
34  */
35 int pdf_finish_cie_space(cos_array_t *pca, cos_dict_t *pcd,
36 			 const gs_cie_common *pciec);
37 
38 /* ------ Exported by gdevpdfk.c for gdevpdfc.c ------ */
39 
40 /*
41  * Create an ICCBased color space.  This is a single-use procedure,
42  * broken out only for readability.
43  */
44 int pdf_iccbased_color_space(gx_device_pdf *pdev, cos_value_t *pvalue,
45 			     const gs_color_space *pcs, cos_array_t *pca);
46 
47 /*
48  * Convert a CIEBased space to Lab or ICCBased.
49  */
50 int pdf_convert_cie_space(gx_device_pdf *pdev, cos_array_t *pca,
51 			  const gs_color_space *pcs, const char *dcsname,
52 			  const gs_cie_common *pciec, const gs_range *prange,
53 			  cie_cache_one_step_t one_step,
54 			  const gs_matrix3 *pmat, const gs_range_t **pprange);
55 
56 /*
57  * Create a Lab color space object.
58  */
59 int pdf_put_lab_color_space(cos_array_t *pca, cos_dict_t *pcd,
60 			    const gs_range ranges[3] /* only [1] and [2] used */);
61 
62 #endif /* gdevpdfc_INCLUDED */
63