MultiSource/Benchmarks/MallocBench/gs/gximage.h

/* Copyright (C) 1989, 1990 Aladdin Enterprises.  All rights reserved.
   Distributed by Free Software Foundation, Inc.

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to the Ghostscript General Public License for full details.

Everyone is granted permission to copy, modify and redistribute
Ghostscript, but only under the conditions described in the Ghostscript
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copies.  */

/* gximage.h */
/* Internal definitions for image rendering */
/* Requires gzcolor.h */

/* Imaging state structure */
/* The Unix C compiler can't handle typedefs for procedure */
/* (as opposed to pointer-to-procedure) types, */
/* so we have to do it with a macro instead: */
#define iunpack_proc_args\
	P4(gs_image_enum *, byte *, byte *, uint)
#define irender_proc_args\
	P4(gs_image_enum *, byte *, uint, int)
struct gs_image_enum_s {
	/* Following are set at structure initialization */
	int width;
	int height;
	int log2_bps;			/* log2(bits per sample), [0..3] */
	int spp;			/* samples per pixel, 1, 3, or 4 */
	int spread;			/* spp if colors are separated, */
					/* 1 otherwise */
	fixed fxx, fxy, fyx, fyy;	/* fixed version of matrix */
	void (*unpack)(iunpack_proc_args);
	int (*render)(irender_proc_args);
	gs_state *pgs;
	byte *buffer;			/* for expanding to 8 bits/sample */
	uint buffer_size;
	uint bytes_per_row;		/* # of input bytes per row */
					/* (per plane, if spp == 1 and */
					/* spread > 1) */
	int never_clip;			/* true if entire image fits */
	int skewed;			/* true if image is skewed */
					/* or rotated */
	int slow_loop;			/* true if !never_clip, skewed, */
					/* or imagemask with a halftone */
	/* Following are updated dynamically */
	byte *planes[4];		/* separated color data */
	int plane_index;		/* current plane index, [0..spp) */
	uint plane_size;		/* size of data in each plane */
	uint byte_in_row;		/* current input byte position in row */
	fixed xcur, ycur;		/* device x, y of current row */
	int y;
	/* Entries 0 and 255 of the following are set at initialization, */
	/* other entries are updated dynamically */
	gx_device_color dev_colors[256];
#define icolor0 dev_colors[0].color1
#define icolor1 dev_colors[255].color1
};