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/* Copyright (C) 1994, 2000 Aladdin Enterprises. All rights reserved.
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This software is provided AS-IS with no warranty, either express or
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implied.
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This software is distributed under license and may not be copied,
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modified or distributed except as expressly authorized under the terms
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of the license contained in the file LICENSE in this distribution.
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For more information about licensing, please refer to
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http://www.ghostscript.com/licensing/. For information on
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commercial licensing, go to http://www.artifex.com/licensing/ or
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contact Artifex Software, Inc., 101 Lucas Valley Road #110,
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San Rafael, CA 94903, U.S.A., +1(415)492-9861.
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*/
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/* $Id: gsdevice.h,v 1.6 2002/06/16 08:45:42 lpd Exp $ */
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/* Device and page control API */
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#ifndef gsdevice_INCLUDED
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# define gsdevice_INCLUDED
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#ifndef gx_device_DEFINED
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# define gx_device_DEFINED
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typedef struct gx_device_s gx_device;
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#endif
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#ifndef gx_device_memory_DEFINED
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# define gx_device_memory_DEFINED
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typedef struct gx_device_memory_s gx_device_memory;
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#endif
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#ifndef gs_matrix_DEFINED
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# define gs_matrix_DEFINED
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typedef struct gs_matrix_s gs_matrix;
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#endif
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#ifndef gs_param_list_DEFINED
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# define gs_param_list_DEFINED
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typedef struct gs_param_list_s gs_param_list;
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#endif
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/* Device procedures not involving a graphics state. */
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int gs_opendevice(gx_device *);
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int gs_copyscanlines(gx_device *, int, byte *, uint, int *, uint *);
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const gx_device *gs_getdevice(int);
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int gs_copydevice(gx_device **, const gx_device *, gs_memory_t *);
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/*
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* If keep_open is true and dev->is_open is true, the copy *may* have
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* is_open = true; otherwise, the copy will have is_open = false.
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* copydevice is equivalent to copydevice2 with keep_open = false.
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*/
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int gs_copydevice2(gx_device **pnew_dev, const gx_device *dev,
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bool keep_open, gs_memory_t *mem);
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#define gs_makeimagedevice(pdev, pmat, w, h, colors, colors_size, mem)\
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gs_makewordimagedevice(pdev, pmat, w, h, colors, colors_size, false, true, mem)
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int gs_makewordimagedevice(gx_device ** pnew_dev, const gs_matrix * pmat,
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uint width, uint height,
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const byte * colors, int num_colors,
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bool word_oriented, bool page_device,
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gs_memory_t * mem);
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#define gs_initialize_imagedevice(mdev, pmat, w, h, colors, colors_size, mem)\
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gs_initialize_wordimagedevice(mdev, pmat, w, h, colors, color_size, false, true, mem)
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int gs_initialize_wordimagedevice(gx_device_memory * new_dev,
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const gs_matrix * pmat,
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uint width, uint height,
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const byte * colors, int colors_size,
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bool word_oriented, bool page_device,
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gs_memory_t * mem);
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const char *gs_devicename(const gx_device *);
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void gs_deviceinitialmatrix(gx_device *, gs_matrix *);
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/* VMS limits identifiers to 31 characters. */
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int gs_get_device_or_hw_params(gx_device *, gs_param_list *, bool);
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#define gs_getdeviceparams(dev, plist)\
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gs_get_device_or_hw_params(dev, plist, false)
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#define gs_gethardwareparams(dev, plist)\
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gs_get_device_or_hw_params(dev, plist, true)
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/* BACKWARD COMPATIBILITY */
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#define gs_get_device_or_hardware_params gs_get_device_or_hw_params
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int gs_putdeviceparams(gx_device *, gs_param_list *);
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int gs_closedevice(gx_device *);
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/* Device procedures involving an imager state. */
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#ifndef gs_imager_state_DEFINED
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# define gs_imager_state_DEFINED
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typedef struct gs_imager_state_s gs_imager_state;
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#endif
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int gs_imager_putdeviceparams(gs_imager_state *pis, gx_device *dev,
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gs_param_list *plist);
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/* Device procedures involving a graphics state. */
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#ifndef gs_state_DEFINED
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# define gs_state_DEFINED
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typedef struct gs_state_s gs_state;
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#endif
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int gs_flushpage(gs_state *);
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int gs_copypage(gs_state *);
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int gs_output_page(gs_state *, int, int);
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int gs_nulldevice(gs_state *);
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int gs_setdevice(gs_state *, gx_device *);
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int gs_setdevice_no_erase(gs_state *, gx_device *); /* returns 1 */
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/* if erasepage required */
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int gs_setdevice_no_init(gs_state *, gx_device *);
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gx_device *gs_currentdevice(const gs_state *);
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/* gzstate.h redefines the following: */
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#ifndef gs_currentdevice_inline
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# define gs_currentdevice_inline(pgs) gs_currentdevice(pgs)
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#endif
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int gs_state_putdeviceparams(gs_state *pgs, gs_param_list *plist);
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#endif /* gsdevice_INCLUDED */
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