/* Copyright (C) 1995, 2000 artofcode LLC.  All rights reserved.
  
  This program is free software; you can redistribute it and/or modify it
  under the terms of the GNU General Public License as published by the
  Free Software Foundation; either version 2 of the License, or (at your
  option) any later version.

  This program is distributed in the hope that it will be useful, but
  WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  General Public License for more details.

  You should have received a copy of the GNU General Public License along
  with this program; if not, write to the Free Software Foundation, Inc.,
  59 Temple Place, Suite 330, Boston, MA, 02111-1307.

*/

/*$Id: gslib.c,v 1.5.2.1.2.1 2003/01/17 00:49:02 giles Exp $ */
/* Test program for Ghostscript library */
/* Capture stdin/out/err before gsio.h redefines them. */
#include "stdio_.h"
static FILE *real_stdin, *real_stdout, *real_stderr;
static void
get_real(void)
{
    real_stdin = stdin, real_stdout = stdout, real_stderr = stderr;
}
#include "math_.h"
#include "string_.h"
#include "gx.h"
#include "gp.h"
#include "gsalloc.h"
#include "gscdefs.h"
#include "gserrors.h"
#include "gslib.h"
#include "gsmatrix.h"
#include "gsstate.h"
#include "gscspace.h"
#include "gscssub.h"
#include "gscolor2.h"
#include "gscoord.h"
#include "gscie.h"
#include "gscrd.h"
#include "gsiparm3.h"
#include "gsiparm4.h"
#include "gsparam.h"
#include "gspaint.h"
#include "gspath.h"
#include "gspath2.h"
#include "gsrop.h"
#include "gsstruct.h"
#include "gsutil.h"
#include "gxalloc.h"
#include "gxdcolor.h"		/* for gx_device_white/black */
#include "gxdevice.h"
#include "gxht.h"		/* for gs_halftone */
#include "gdevbbox.h"
#include "gdevcmap.h"
#include "gshtx.h"

/* Define whether we are processing captured data. */
/*#define CAPTURE */

/* Test programs */
private int test1(P2(gs_state *, gs_memory_t *));	/* kaleidoscope */
private int test2(P2(gs_state *, gs_memory_t *));	/* pattern fill */
private int test3(P2(gs_state *, gs_memory_t *));	/* RasterOp */
private int test4(P2(gs_state *, gs_memory_t *));	/* set resolution */
private int test5(P2(gs_state *, gs_memory_t *));	/* images */
private int test6(P2(gs_state *, gs_memory_t *));	/* CIE API, snapping */
private int test7(P2(gs_state *, gs_memory_t *));	/* non-monot HT */
private int test8(P2(gs_state *, gs_memory_t *));	/* transp patterns */

#ifdef CAPTURE
#include "k/capture.c"
private int test10(P2(gs_state *, gs_memory_t *));	/* captured data */

#endif
private int (*tests[]) (P2(gs_state *, gs_memory_t *)) =
{
    test1, test2, test3, test4, test5,
	test6, test7, test8, 0
#ifdef CAPTURE
	test10
#endif
};

/* Include the extern for the device list. */
extern_gs_lib_device_list();

/* Forward references */
private float odsf(P2(floatp, floatp));

/* Provide a single point for all "C" stdout and stderr.
 * Eventually these will always be referenced through an instance structure. 
 */

int outwrite(const char *str, int len)
{
    return fwrite(str, 1, len, gs_stdout);
}

int errwrite(const char *str, int len)
{
    return fwrite(str, 1, len, gs_stderr);
}

void outflush()
{
    fflush(gs_stdout);
}

void errflush()
{
    fflush(gs_stderr);
}


int
main(int argc, const char *argv[])
{
    char achar;
    gs_ref_memory_t *imem;

#define mem ((gs_memory_t *)imem)
    gs_state *pgs;
    const gx_device *const *list;
    gx_device *dev;
    gx_device_bbox *bbdev;
    int code;

    gp_init();
    get_real();
    gs_stdin = real_stdin;
    gs_stdout = real_stdout;
    gs_stderr = real_stderr;
    gs_lib_init(stdout);
    if (argc < 2 || (achar = argv[1][0]) < '1' ||
	achar > '0' + countof(tests)
	) {
	lprintf1("Usage: gslib 1..%c\n", '0' + countof(tests));
	exit(1);
    }
    gs_debug['@'] = 1;
    gs_debug['?'] = 1;
/*gs_debug['B'] = 1; *//****** PATCH ******/
/*gs_debug['L'] = 1; *//****** PATCH ******/
    imem = ialloc_alloc_state(&gs_memory_default, 20000);
    imem->space = 0;
    /*
     * gs_iodev_init must be called after the rest of the inits, for
     * obscure reasons that really should be documented!
     */
    gs_iodev_init(mem);
/****** WRONG ******/
    gs_lib_device_list(&list, NULL);
    gs_copydevice(&dev, list[0], mem);
    gx_device_fill_in_procs(dev);
    bbdev =
	gs_alloc_struct_immovable(mem, gx_device_bbox, &st_device_bbox,
				  "bbox");
    gx_device_bbox_init(bbdev, dev);
    /* Print out the device name just to test the gsparam.c API. */
    {
	gs_c_param_list list;
	gs_param_string nstr;

	gs_c_param_list_write(&list, mem);
	code = gs_getdeviceparams(dev, (gs_param_list *) & list);
	if (code < 0) {
	    lprintf1("getdeviceparams failed! code = %d\n", code);
	    exit(1);
	}
	gs_c_param_list_read(&list);
	code = param_read_string((gs_param_list *) & list, "Name", &nstr);
	if (code < 0) {
	    lprintf1("reading Name failed! code = %d\n", code);
	    exit(1);
	}
	dputs("Device name = ");
	debug_print_string(nstr.data, nstr.size);
	dputs("\n");
	gs_c_param_list_release(&list);
    }
    /*
     * If this is a device that takes an OutputFile, set the OutputFile
     * to "-" in the copy.
     */
    {
	gs_c_param_list list;
	gs_param_string nstr;

	gs_c_param_list_write(&list, mem);
	param_string_from_string(nstr, "-");
	code = param_write_string((gs_param_list *)&list, "OutputFile", &nstr);
	if (code < 0) {
	    lprintf1("writing OutputFile failed! code = %d\n", code);
	    exit(1);
	}
	gs_c_param_list_read(&list);
	code = gs_putdeviceparams(dev, (gs_param_list *)&list);
	gs_c_param_list_release(&list);
	if (code < 0 && code != gs_error_undefined) {
	    lprintf1("putdeviceparams failed! code = %d\n", code);
	    exit(1);
	}
    }
    dev = (gx_device *) bbdev;
    pgs = gs_state_alloc(mem);
    gs_setdevice_no_erase(pgs, dev);	/* can't erase yet */
    {
	gs_point dpi;
	gs_screen_halftone ht;

	gs_dtransform(pgs, 72.0, 72.0, &dpi);
	ht.frequency = min(fabs(dpi.x), fabs(dpi.y)) / 16.001;
	ht.angle = 0;
	ht.spot_function = odsf;
	gs_setscreen(pgs, &ht);
    }
    /* gsave and grestore (among other places) assume that */
    /* there are at least 2 gstates on the graphics stack. */
    /* Ensure that now. */
    gs_gsave(pgs);
    gs_erasepage(pgs);

    code = (*tests[achar - '1']) (pgs, mem);
    gs_output_page(pgs, 1, 1);
    {
	gs_rect bbox;

	gx_device_bbox_bbox(bbdev, &bbox);
	dprintf4("Bounding box: [%g %g %g %g]\n",
		 bbox.p.x, bbox.p.y, bbox.q.x, bbox.q.y);
    }
    if (code)
	dprintf1("**** Test returned code = %d.\n", code);
    dputs("Done.  Press <enter> to exit.");
    fgetc(gs_stdin);
    gs_lib_finit(0, 0);
    return 0;
#undef mem
}
/* Ordered dither spot function */
private float
odsf(floatp x, floatp y)
{
    static const byte dither[256] =
    {
	0x0E, 0x8E, 0x2E, 0xAE, 0x06, 0x86, 0x26, 0xA6, 0x0C, 0x8C, 0x2C, 0xAC, 0x04, 0x84, 0x24, 0xA4,
	0xCE, 0x4E, 0xEE, 0x6E, 0xC6, 0x46, 0xE6, 0x66, 0xCC, 0x4C, 0xEC, 0x6C, 0xC4, 0x44, 0xE4, 0x64,
	0x3E, 0xBE, 0x1E, 0x9E, 0x36, 0xB6, 0x16, 0x96, 0x3C, 0xBC, 0x1C, 0x9C, 0x34, 0xB4, 0x14, 0x94,
	0xFE, 0x7E, 0xDE, 0x5E, 0xF6, 0x76, 0xD6, 0x56, 0xFC, 0x7C, 0xDC, 0x5C, 0xF4, 0x74, 0xD4, 0x54,
	0x01, 0x81, 0x21, 0xA1, 0x09, 0x89, 0x29, 0xA9, 0x03, 0x83, 0x23, 0xA3, 0x0B, 0x8B, 0x2B, 0xAB,
	0xC1, 0x41, 0xE1, 0x61, 0xC9, 0x49, 0xE9, 0x69, 0xC3, 0x43, 0xE3, 0x63, 0xCB, 0x4B, 0xEB, 0x6B,
	0x31, 0xB1, 0x11, 0x91, 0x39, 0xB9, 0x19, 0x99, 0x33, 0xB3, 0x13, 0x93, 0x3B, 0xBB, 0x1B, 0x9B,
	0xF1, 0x71, 0xD1, 0x51, 0xF9, 0x79, 0xD9, 0x59, 0xF3, 0x73, 0xD3, 0x53, 0xFB, 0x7B, 0xDB, 0x5B,
	0x0D, 0x8D, 0x2D, 0xAD, 0x05, 0x85, 0x25, 0xA5, 0x0F, 0x8F, 0x2F, 0xAF, 0x07, 0x87, 0x27, 0xA7,
	0xCD, 0x4D, 0xED, 0x6D, 0xC5, 0x45, 0xE5, 0x65, 0xCF, 0x4F, 0xEF, 0x6F, 0xC7, 0x47, 0xE7, 0x67,
	0x3D, 0xBD, 0x1D, 0x9D, 0x35, 0xB5, 0x15, 0x95, 0x3F, 0xBF, 0x1F, 0x9F, 0x37, 0xB7, 0x17, 0x97,
	0xFD, 0x7D, 0xDD, 0x5D, 0xF5, 0x75, 0xD5, 0x55, 0xFF, 0x7F, 0xDF, 0x5F, 0xF7, 0x77, 0xD7, 0x57,
	0x02, 0x82, 0x22, 0xA2, 0x0A, 0x8A, 0x2A, 0xAA, 0x00, 0x80, 0x20, 0xA0, 0x08, 0x88, 0x28, 0xA8,
	0xC2, 0x42, 0xE2, 0x62, 0xCA, 0x4A, 0xEA, 0x6A, 0xC0, 0x40, 0xE0, 0x60, 0xC8, 0x48, 0xE8, 0x68,
	0x32, 0xB2, 0x12, 0x92, 0x3A, 0xBA, 0x1A, 0x9A, 0x30, 0xB0, 0x10, 0x90, 0x38, 0xB8, 0x18, 0x98,
	0xF2, 0x72, 0xD2, 0x52, 0xFA, 0x7A, 0xDA, 0x5A, 0xF0, 0x70, 0xD0, 0x50, 0xF8, 0x78, 0xD8, 0x58
    };
    int i = (int)((x + 1) * 7.9999);
    int j = (int)((y + 1) * 7.9999);

    return dither[16 * i + j] / 256.0;
}

/* Fill a rectangle. */
private int
fill_rect1(gs_state * pgs, floatp x, floatp y, floatp w, floatp h)
{
    gs_rect r;

    r.q.x = (r.p.x = x) + w;
    r.q.y = (r.p.y = y) + h;
    return gs_rectfill(pgs, &r, 1);
}

/* Stubs for GC */
const gs_ptr_procs_t ptr_struct_procs =
{NULL, NULL, NULL};
const gs_ptr_procs_t ptr_string_procs =
{NULL, NULL, NULL};
const gs_ptr_procs_t ptr_const_string_procs =
{NULL, NULL, NULL};
void *				/* obj_header_t * */
gs_reloc_struct_ptr(const void * /* obj_header_t * */ obj, gc_state_t * gcst)
{
    return (void *)obj;
}
void
gs_reloc_string(gs_string * sptr, gc_state_t * gcst)
{
}
void
gs_reloc_const_string(gs_const_string * sptr, gc_state_t * gcst)
{
}

/* Other stubs */
void
gs_exit(int exit_status)
{
    gs_lib_finit(exit_status, 0);
    exit(exit_status);
}


/* Return the number with the magnitude of x and the sign of y. */
/* This is a BSD addition to libm; not all compilers have it. */
private double
gs_copysign(floatp x, floatp y)
{
   return ( y >= 0  ? fabs(x) : -fabs(x) );
}


/* ---------------- Test program 1 ---------------- */
/* Draw a colored kaleidoscope. */

/* Random number generator */
private long rand_state = 1;
private long
rand(void)
{
#define A 16807
#define M 0x7fffffff
#define Q 127773		/* M / A */
#define R 2836			/* M % A */
    rand_state = A * (rand_state % Q) - R * (rand_state / Q);
    /* Note that rand_state cannot be 0 here. */
    if (rand_state <= 0)
	rand_state += M;
#undef A
#undef M
#undef Q
#undef R
    return rand_state;
}
private int
test1(gs_state * pgs, gs_memory_t * mem)
{
    int n;

    gs_scale(pgs, 72.0, 72.0);
    gs_translate(pgs, 4.25, 5.5);
    gs_scale(pgs, 4.0, 4.0);
    gs_newpath(pgs);
    for (n = 200; --n >= 0;) {
	int j;

#define rf() (rand() / (1.0 * 0x10000 * 0x8000))
	double r = rf(), g = rf(), b = rf();
	double x0 = rf(), y0 = rf(), x1 = rf(), y1 = rf(), x2 = rf(), y2 = rf();

	gs_setrgbcolor(pgs, r, g, b);
	for (j = 0; j < 6; j++) {
	    gs_gsave(pgs);
	    gs_rotate(pgs, 60.0 * j);
	    gs_moveto(pgs, x0, y0);
	    gs_lineto(pgs, x1, y1);
	    gs_lineto(pgs, x2, y2);
	    gs_fill(pgs);
	    gs_grestore(pgs);
	}
    }
#undef mem
    return 0;
}

/* ---------------- Test program 2 ---------------- */
/* Fill an area with a pattern. */

private int
test2(gs_state * pgs, gs_memory_t * mem)
{
    gs_client_color cc;
    gx_tile_bitmap tile;
    /*const */ byte tpdata[] =
    {
    /* Define a pattern that looks like this:
       ..xxxx
       .....x
       .....x
       ..xxxx
       .x....
       x.....
     */
	0x3c, 0, 0, 0, 0x04, 0, 0, 0, 0x04, 0, 0, 0, 0x3c, 0, 0, 0,
	0x40, 0, 0, 0, 0x80, 0, 0, 0
    };

    gs_newpath(pgs);
    gs_moveto(pgs, 100.0, 300.0);
    gs_lineto(pgs, 500.0, 500.0);
    gs_lineto(pgs, 200.0, 100.0);
    gs_lineto(pgs, 300.0, 500.0);
    gs_lineto(pgs, 500.0, 200.0);
    gs_closepath(pgs);
    gs_setrgbcolor(pgs, 0.0, 0.0, 0.0);
    gs_gsave(pgs);
    gs_fill(pgs);
    gs_grestore(pgs);
    tile.data = tpdata;
    tile.raster = 4;
    tile.size.x = tile.rep_width = 6;
    tile.size.y = tile.rep_height = 6;
    tile.id = gx_no_bitmap_id;
    gs_makebitmappattern(&cc, &tile, true, pgs, NULL);
    /* Note: color space is DeviceRGB */
    cc.paint.values[0] = 0.0;
    cc.paint.values[1] = 1.0;
    cc.paint.values[2] = 1.0;
    gs_setpattern(pgs, &cc);
    gs_eofill(pgs);
    gs_makebitmappattern(&cc, &tile, false, pgs, NULL);
    gs_setcolor(pgs, &cc);
    gs_moveto(pgs, 50.0, 50.0);
    gs_lineto(pgs, 300.0, 50.0);
    gs_lineto(pgs, 50.0, 300.0);
    gs_closepath(pgs);
    gs_setrgbcolor(pgs, 1.0, 0.0, 0.0);
    gs_gsave(pgs);
    gs_fill(pgs);
    gs_grestore(pgs);
    gs_setpattern(pgs, &cc);
    gs_eofill(pgs);
    return 0;
}

/* ---------------- Test program 3 ---------------- */
/* Exercise RasterOp a little. */
/* Currently, this only works with monobit devices. */

private int
test3(gs_state * pgs, gs_memory_t * mem)
{
    gx_device *dev = gs_currentdevice(pgs);
    gx_color_index black = gx_device_black(dev);
    gx_color_index white = gx_device_white(dev);
    gx_color_index black2[2];
    gx_color_index black_white[2];
    gx_color_index white_black[2];
    long pattern[max(align_bitmap_mod / sizeof(long), 1) * 4];

#define pbytes ((byte *)pattern)
    gx_tile_bitmap tile;

    black2[0] = black2[1] = black;
    black_white[0] = white_black[1] = black;
    black_white[1] = white_black[0] = white;
    pbytes[0] = 0xf0;
    pbytes[align_bitmap_mod] = 0x90;
    pbytes[align_bitmap_mod * 2] = 0x90;
    pbytes[align_bitmap_mod * 3] = 0xf0;
    tile.data = pbytes;
    tile.raster = align_bitmap_mod;
    tile.size.x = tile.size.y = 4;
    tile.id = gs_next_ids(1);
    tile.rep_width = tile.rep_height = 4;
    (*dev_proc(dev, copy_rop))
	(dev, NULL, 0, 0, gx_no_bitmap_id, black2,
	 &tile, white_black, 100, 100, 150, 150, 0, 0, rop3_T);
    (*dev_proc(dev, copy_rop))
	(dev, NULL, 0, 0, gx_no_bitmap_id, black2,
	 NULL, NULL, 120, 120, 110, 110, 0, 0, ~rop3_S & rop3_1);
    (*dev_proc(dev, copy_rop))
	(dev, NULL, 0, 0, gx_no_bitmap_id, black2,
	 &tile, white_black, 110, 110, 130, 130, 0, 0, rop3_T ^ rop3_D);
#undef pbytes
    return 0;
}

/* ---------------- Test program 4 ---------------- */
/* Set the resolution dynamically. */

private int
test4(gs_state * pgs, gs_memory_t * mem)
{
    gs_c_param_list list;
    float resv[2];
    gs_param_float_array ares;
    int code;
    gx_device *dev = gs_currentdevice(pgs);

    gs_c_param_list_write(&list, mem);
    resv[0] = resv[1] = 100;
    ares.data = resv;
    ares.size = 2;
    ares.persistent = true;
    code = param_write_float_array((gs_param_list *) & list,
				   "HWResolution", &ares);
    if (code < 0) {
	lprintf1("Writing HWResolution failed: %d\n", code);
	exit(1);
    }
    gs_c_param_list_read(&list);
    code = gs_putdeviceparams(dev, (gs_param_list *) & list);
    gs_c_param_list_release(&list);
    if (code < 0) {
	lprintf1("Setting HWResolution failed: %d\n", code);
	exit(1);
    }
    gs_initmatrix(pgs);
    gs_initclip(pgs);
    if (code == 1) {
	code = (*dev_proc(dev, open_device)) (dev);
	if (code < 0) {
	    lprintf1("Reopening device failed: %d\n", code);
	    exit(1);
	}
    }
    gs_moveto(pgs, 0.0, 72.0);
    gs_rlineto(pgs, 72.0, 0.0);
    gs_rlineto(pgs, 0.0, 72.0);
    gs_closepath(pgs);
    gs_stroke(pgs);
    return 0;
}

/* ---------------- Test program 5 ---------------- */
/* Test masked (and non-masked) images. */

private int
test5(gs_state * pgs, gs_memory_t * mem)
{
    gx_device *dev = gs_currentdevice(pgs);
    gx_image_enum_common_t *info;
    gx_image_plane_t planes[5];
    gx_drawing_color dcolor;
    int code;
    static const byte data3[] =
    {
	0x00, 0x44, 0x88, 0xcc,
	0x44, 0x88, 0xcc, 0x00,
	0x88, 0xcc, 0x00, 0x44,
	0xcc, 0x00, 0x44, 0x88
    };

    /*
     * Neither ImageType 3 nor 4 needs a current color,
     * but some intermediate code assumes it's valid.
     */
    color_set_pure(&dcolor, 0);

    /* Scale everything up, and fill the background. */
    {
	gs_matrix mat;

	gs_currentmatrix(pgs, &mat);
	mat.xx = gs_copysign(98.6, mat.xx);
	mat.yy = gs_copysign(98.6, mat.yy);
	mat.tx = floor(mat.tx) + 0.499;
	mat.ty = floor(mat.ty) + 0.499;
	gs_setmatrix(pgs, &mat);
    }
    gs_setrgbcolor(pgs, 1.0, 0.9, 0.9);
    fill_rect1(pgs, 0.25, 0.25, 4.0, 6.0);
    gs_setrgbcolor(pgs, 0.5, 1.0, 0.5);

#if 0
    /* Make things a little more interesting.... */
    gs_translate(pgs, 1.0, 1.0);
    gs_rotate(pgs, 10.0);
    gs_scale(pgs, 1.3, 0.9);
#endif

#define do_image(image, idata)\
  BEGIN\
  code = gx_device_begin_typed_image(dev, (gs_imager_state *)pgs, NULL,\
     (gs_image_common_t *)&image, NULL, &dcolor, NULL, mem, &info);\
  /****** TEST code >= 0 ******/\
  planes[0].data = idata;\
  planes[0].data_x = 0;\
  planes[0].raster = (image.Height * image.BitsPerComponent + 7) >> 3;\
  code = gx_image_plane_data(info, planes, image.Height);\
  /****** TEST code == 1 ******/\
  code = gx_image_end(info, true);\
  /****** TEST code >= 0 ******/\
  END

#define W 4
#define H 4

    /* Test an unmasked image. */
    gs_gsave(pgs);
    {
	gs_image1_t image1;
	void *info1;

	gs_image_t_init_gray(&image1, (const gs_imager_state *)pgs);
	/* image */
	image1.ImageMatrix.xx = W;
	image1.ImageMatrix.yy = -H;
	image1.ImageMatrix.ty = H;
	/* data_image */
	image1.Width = W;
	image1.Height = H;
	image1.BitsPerComponent = 8;

	gs_translate(pgs, 0.5, 4.0);
	code = gx_device_begin_image(dev, (gs_imager_state *) pgs,
				     &image1, gs_image_format_chunky,
				     NULL, &dcolor, NULL, mem, &info1);
/****** TEST code >= 0 ******/
	planes[0].data = data3;
	planes[0].data_x = 0;
	planes[0].raster =
	    (image1.Height * image1.BitsPerComponent + 7) >> 3;
	/* Use the old image_data API. */
	code = gx_image_data(info1, &planes[0].data, 0,
			     planes[0].raster, image1.Height);
/****** TEST code == 1 ******/
	code = gx_image_end(info1, true);
/****** TEST code >= 0 ******/
    }
    gs_grestore(pgs);

    /* Test an explicitly masked image. */
    gs_gsave(pgs);
    {
	gs_image3_t image3;
	static const byte data3mask[] =
	{
	    0x60,
	    0x90,
	    0x90,
	    0x60
	};
	static const byte data3x2mask[] =
	{
	    0x66,
	    0x99,
	    0x99,
	    0x66,
	    0x66,
	    0x99,
	    0x99,
	    0x66
	};

	gs_image3_t_init(&image3, gs_current_DeviceGray_space(pgs),
			 interleave_scan_lines);
	/* image */
	image3.ImageMatrix.xx = W;
	image3.ImageMatrix.yy = -H;
	image3.ImageMatrix.ty = H;
	/* data_image */
	image3.Width = W;
	image3.Height = H;
	image3.BitsPerComponent = 8;
	/* MaskDict */
	image3.MaskDict.ImageMatrix = image3.ImageMatrix;
	image3.MaskDict.Width = image3.Width;
	image3.MaskDict.Height = image3.Height;

	/* Display with 1-for-1 mask and image. */
	gs_translate(pgs, 0.5, 2.0);
	code = gx_device_begin_typed_image(dev, (gs_imager_state *) pgs,
				       NULL, (gs_image_common_t *) & image3,
					   NULL, &dcolor, NULL, mem, &info);
/****** TEST code >= 0 ******/
	planes[0].data = data3mask;
	planes[0].data_x = 0;
	planes[0].raster = (image3.MaskDict.Height + 7) >> 3;
	planes[1].data = data3;
	planes[1].data_x = 0;
	planes[1].raster =
	    (image3.Height * image3.BitsPerComponent + 7) >> 3;
	code = gx_image_plane_data(info, planes, image3.Height);
/****** TEST code == 1 ******/
	code = gx_image_end(info, true);
/****** TEST code >= 0 ******/

	/* Display with 2-for-1 mask and image. */
	image3.MaskDict.ImageMatrix.xx *= 2;
	image3.MaskDict.ImageMatrix.yy *= 2;
	image3.MaskDict.ImageMatrix.ty *= 2;
	image3.MaskDict.Width *= 2;
	image3.MaskDict.Height *= 2;
	gs_translate(pgs, 1.5, 0.0);
	code = gx_device_begin_typed_image(dev, (gs_imager_state *) pgs,
				       NULL, (gs_image_common_t *) & image3,
					   NULL, &dcolor, NULL, mem, &info);
/****** TEST code >= 0 ******/
	planes[0].data = data3x2mask;
	planes[0].raster = (image3.MaskDict.Width + 7) >> 3;
	{
	    int i;

	    for (i = 0; i < H; ++i) {
		planes[1].data = 0;
		code = gx_image_plane_data(info, planes, 1);
		planes[0].data += planes[0].raster;
/****** TEST code == 0 ******/
		planes[1].data = data3 + i * planes[1].raster;
		code = gx_image_plane_data(info, planes, 1);
		planes[0].data += planes[0].raster;
/****** TEST code >= 0 ******/
	    }
	}
/****** TEST code == 1 ******/
	code = gx_image_end(info, true);
/****** TEST code >= 0 ******/
    }
    gs_grestore(pgs);

    /* Test a chroma-keyed masked image. */
    gs_gsave(pgs);
    {
	gs_image4_t image4;
	const byte *data4 = data3;

	gs_image4_t_init(&image4, gs_current_DeviceGray_space(pgs));
	/* image */
	image4.ImageMatrix.xx = W;
	image4.ImageMatrix.yy = -H;
	image4.ImageMatrix.ty = H;
	/* data_image */
	image4.Width = W;
	image4.Height = H;
	image4.BitsPerComponent = 8;

	/* Display with a single mask color. */
	gs_translate(pgs, 0.5, 0.5);
	image4.MaskColor_is_range = false;
	image4.MaskColor[0] = 0xcc;
	do_image(image4, data4);

	/* Display a second time with a color range. */
	gs_translate(pgs, 1.5, 0.0);
	image4.MaskColor_is_range = true;
	image4.MaskColor[0] = 0x40;
	image4.MaskColor[1] = 0x90;
	do_image(image4, data4);
    }
    gs_grestore(pgs);

#undef W
#undef H
#undef do_image
    return 0;
}

/* ---------------- Test program 6 ---------------- */
/* Test the C API for CIE CRDs, and color snapping. */

private void
spectrum(gs_state * pgs, int n)
{
    float den = n;
    float den1 = n - 1;
    float den2 = (n * 2 - 1) * n;
    int a, b, c;

    for (a = 0; a < n; ++a)
	for (b = 0; b < n; ++b)
	    for (c = 0; c < n; ++c) {
		double size = (n * 2 - c * 2 - 1) / den2;
		gs_client_color cc;

		cc.paint.values[0] = a / den1;
		cc.paint.values[1] = b / den1;
		cc.paint.values[2] = c / den1;
		gs_setcolor(pgs, &cc);
		fill_rect1(pgs,
			   a / den + c / den2, b / den + c / den2,
			   size, size);
	    }
}
private float
render_abc(floatp v, const gs_cie_render * ignore_crd)
{
    return v / 2;
}
private int
set_cmap_method(gx_device_cmap *cmdev, gx_device_color_mapping_method_t method,
		gs_state *pgs, gs_memory_t *mem)
{
    gs_c_param_list list;
    int cmm = method;

    gs_c_param_list_write(&list, mem);
    param_write_int((gs_param_list *)&list, "ColorMappingMethod", &cmm);
    gs_c_param_list_read(&list);
    gs_putdeviceparams((gx_device *)cmdev, (gs_param_list *)&list);
    gs_c_param_list_release(&list);
    gs_setdevice_no_init(pgs, (gx_device *)cmdev);
    return 0;
}
private int
test6(gs_state * pgs, gs_memory_t * mem)
{
    gs_color_space *pcs;
    gs_cie_abc *pabc;
    gs_cie_render *pcrd;
    static const gs_vector3 white_point =
    {1, 1, 1};
    static const gs_cie_render_proc3 encode_abc =
    {
	{render_abc, render_abc, render_abc}
    };
    gx_device_cmap *cmdev;
    int code;

    gs_scale(pgs, 150.0, 150.0);
    gs_translate(pgs, 0.5, 0.5);
    gs_setcolorspace(pgs, gs_current_DeviceRGB_space(pgs));
    spectrum(pgs, 5);
    gs_translate(pgs, 1.2, 0.0);
    /* We must set the CRD before the color space. */
    code = gs_cie_render1_build(&pcrd, mem, "test6");
    if (code < 0)
	return code;
    gs_cie_render1_initialize(pcrd, NULL, &white_point, NULL,
			      NULL, NULL, NULL,
			      NULL, NULL, NULL,
			      NULL, &encode_abc, NULL,
			      NULL);
    gs_setcolorrendering(pgs, pcrd);
    gs_cspace_build_CIEABC(&pcs, NULL, mem);
    /* There should be an API for initializing CIE color spaces too.... */
    pabc = pcs->params.abc;
    pabc->common.points.WhitePoint = white_point;
    gs_cie_abc_complete(pabc);
    /* End of initializing the color space. */
    gs_setcolorspace(pgs, pcs);
    spectrum(pgs, 5);
    /* Now test color snapping. */
    cmdev =
	gs_alloc_struct_immovable(mem, gx_device_cmap, &st_device_cmap,
				  "cmap device");
    gdev_cmap_init(cmdev, gs_currentdevice(pgs),
		   device_cmap_snap_to_primaries);
    gs_setdevice_no_init(pgs, (gx_device *) cmdev);
    gs_setrgbcolor(pgs, 0.0, 0.0, 0.0);		/* back to DeviceRGB space */
    gs_translate(pgs, -1.2, 1.2);
    spectrum(pgs, 5);
    gs_translate(pgs, 1.2, 0.0);
    set_cmap_method(cmdev, device_cmap_monochrome, pgs, mem);
    spectrum(pgs, 5);
    gs_translate(pgs, -1.2, 1.2);
    set_cmap_method(cmdev, device_cmap_color_to_black_over_white, pgs, mem);
    spectrum(pgs, 5);
    return 0;
}

/* ---------------- Test program 7 ---------------- */
/* Test the C API for non-monotonic halftones. */

private int
test7(gs_state * pgs, gs_memory_t * mem)
{
    /* Define a non-monotonic 4 x 4 halftone with 4 gray levels. */
    static const byte masks[1 * 4 * 4] =
    {
    /* 0% */
	0x00, 0x00, 0x00, 0x00,
    /* 25% */
	0x80, 0x40, 0x20, 0x10,
    /* 50% */
	0xa0, 0xa0, 0x50, 0x50,
    /* 75% */
	0xd0, 0xe0, 0x70, 0xb0
    };
    gs_ht *pht;
    int code;
    int i;

    /* Fabricate a Type 5 halftone. */
    code = gs_ht_build(&pht, 1, mem);
    dprintf1("ht build code = %d\n", code);
    code = gs_ht_set_mask_comp(pht, 0, gs_ht_separation_Default,
			       4, 4, 4, masks, NULL, NULL);
    dprintf1("set mask code = %d\n", code);
    code = gs_sethalftone(pgs, pht);
    dprintf1("sethalftone code = %d\n", code);
    for (i = 0; i <= 4; ++i) {
	gs_setgray(pgs, i / 4.0);
	fill_rect1(pgs, 100 + i * 100, 100, 50, 50);
    }
    return 0;
}

/* ---------------- Test program 8 ---------------- */
/* Test partially transparent patterns */

private int
test8(gs_state * pgs, gs_memory_t * mem)
{
    /*
     * Define a 16 x 16 pattern using a 4-entry palette
     * (white, red, green, black).
     */
    static const byte pdata[] =
    {
	0x7f, 0xff, 0x00, 0x03,
	0x7f, 0xff, 0x00, 0x0c,
	0x50, 0x00, 0x00, 0x30,
	0x50, 0x00, 0x00, 0xc0,
	0x50, 0x00, 0x03, 0x00,
	0x50, 0x00, 0x0c, 0x00,
	0x50, 0x00, 0x30, 0x00,
	0x50, 0x00, 0xc0, 0x00,
	0xf0, 0x00, 0xc0, 0x00,
	0xf0, 0x00, 0x30, 0x00,
	0xf0, 0x00, 0x0c, 0x00,
	0xf0, 0x00, 0x03, 0x00,
	0xf0, 0x00, 0x00, 0xc0,
	0xf0, 0x00, 0x00, 0x30,
	0xea, 0x55, 0xaa, 0x5c,
	0xea, 0x55, 0xaa, 0x57,
    };
    gs_depth_bitmap ptile;
    gs_const_string table;
    gs_color_space *pcs;
    gs_client_color ccolor;

    table.data =
	(const byte *)"\377\377\377\377\000\000\000\377\000\000\000\000";
    table.size = 12;
    gs_cspace_build_Indexed(&pcs,
			    gs_current_DeviceRGB_space(pgs),
			    4,
			    &table,
			    mem);
    ptile.data = pdata;
    ptile.raster = 4;
    ptile.size.x = ptile.size.y = 16;
    ptile.id = gs_no_bitmap_id;
    ptile.pix_depth = 2;
    ptile.num_comps = 1;
    gs_makepixmappattern(&ccolor, &ptile, false /*mask */ , NULL /*pmat */ ,
			 gs_no_id, pcs, 0 /*white_index */ , pgs, mem);
    {
	gs_rect r;

	r.p.x = 100;
	r.p.y = 100;
	r.q.x = 200;
	r.q.y = 200;
	gs_setrgbcolor(pgs, 1.0, 1.0, 0.0);
	gs_rectfill(pgs, &r, 1);
	gs_setpattern(pgs, &ccolor);
	gs_settexturetransparent(pgs, true);
	gs_rectfill(pgs, &r, 1);
	r.p.x += 150;
	r.q.x += 150;
	gs_setrgbcolor(pgs, 1.0, 1.0, 0.0);
	gs_rectfill(pgs, &r, 1);
	gs_setpattern(pgs, &ccolor);
	gs_settexturetransparent(pgs, false);
	gs_rectfill(pgs, &r, 1);
    }
    return 0;
}


#ifdef CAPTURE

/* ---------------- Test program 10 ---------------- */
/* Replay captured data for printer output. */

private const char outfile[] = "t.pbm";
private const float ypage_wid = 11.0;
private const float xpage_len = 17.0;
private const int rotate_value = 0;
private const float scale_x = 0.45;
private const float scale_y = 0.45;
private const float xmove_origin = 0.0;
private const float ymove_origin = 0.0;

private int
test10(gs_state * pgs, gs_memory_t * mem)
{
    gs_c_param_list list;
    gs_param_string nstr, OFstr;
    gs_param_float_array PSa;
    gs_param_float_array HWRa;
    gs_param_int_array HWSa;
    int HWSize[2];
    float HWResolution[2], PageSize[2];
    long MaxBitmap;
    int code;
    gx_device *dev = gs_currentdevice(pgs);
    float xlate_x, xlate_y;
    gs_rect cliprect;

    gs_c_param_list_write(&list, mem);
    code = gs_getdeviceparams(dev, (gs_param_list *) & list);
    if (code < 0) {
	lprintf1("getdeviceparams failed! code = %d\n", code);
	exit(1);
    }
    gs_c_param_list_read(&list);
    code = param_read_string((gs_param_list *) & list, "Name", &nstr);
    if (code < 0) {
	lprintf1("reading Name failed! code = %d\n", code);
	exit(1);
    }
    code = param_read_int_array((gs_param_list *) & list,
				"HWSize", &HWSa);
    if (code < 0) {
	lprintf1("reading HWSize failed! code = %d\n", code);
	exit(1);
    }
    eprintf3("HWSize[%d] = [ %d, %d ]\n", HWSa.size,
	     HWSa.data[0], HWSa.data[1]);
    code = param_read_float_array((gs_param_list *) & list,
				  "HWResolution", &HWRa);
    if (code < 0) {
	lprintf1("reading Resolution failed! code = %d\n", code);
	exit(1);
    }
    eprintf3("HWResolution[%d] = [ %f, %f ]\n", HWRa.size,
	     HWRa.data[0], HWRa.data[1]);
    code = param_read_float_array((gs_param_list *) & list,
				  "PageSize", &PSa);
    if (code < 0) {
	lprintf1("reading PageSize failed! code = %d\n", code);
	exit(1);
    }
    eprintf3("PageSize[%d] = [ %f, %f ]\n", PSa.size,
	     PSa.data[0], PSa.data[1]);
    code = param_read_long((gs_param_list *) & list,
			   "MaxBitmap", &MaxBitmap);
    if (code < 0) {
	lprintf1("reading MaxBitmap failed! code = %d\n", code);
	exit(1);
    }
    eprintf1("MaxBitmap = %ld\n", MaxBitmap);
    /* Switch to param list functions to "write" */
    gs_c_param_list_write(&list, mem);
    /* Always set the PageSize. */
    PageSize[0] = 72.0 * ypage_wid;
    PageSize[1] = 72.0 * xpage_len;
    PSa.data = PageSize;
    code = param_write_float_array((gs_param_list *) & list,
				   "PageSize", &PSa);
    if (nstr.data[0] != 'v') {
	/* Set the OutputFile string file name */
	OFstr.persistent = false;
	OFstr.data = outfile;
	OFstr.size = strlen(outfile);
	code = param_write_string((gs_param_list *) & list,
				  "OutputFile", &OFstr);
	if (code < 0) {
	    lprintf1("setting OutputFile name failed, code=%d\n",
		     code);
	    exit(1);
	}
	if (nstr.data[0] == 'x') {
	    HWResolution[0] = HWResolution[1] = 72.0;
	} else {
	    HWResolution[0] = HWResolution[1] = 360.0;
	}
	HWRa.data = HWResolution;
	HWSize[0] = (int)(HWResolution[0] * ypage_wid);
	HWSize[1] = (int)(HWResolution[1] * xpage_len);
	eprintf3("	HWSize = [%d,%d], HWResolution = %f dpi\n",
		 HWSize[0], HWSize[1], HWResolution[0]);
	HWSa.data = HWSize;
	code = param_write_float_array((gs_param_list *) & list,
				       "HWResolution", &HWRa);
	code = param_write_int_array((gs_param_list *) & list,
				     "HWSize", &HWSa);
	MaxBitmap = 1000000L;
	code = param_write_long((gs_param_list *) & list,
				"MaxBitmap", &MaxBitmap);
    }
    gs_c_param_list_read(&list);
    code = gs_putdeviceparams(dev, (gs_param_list *) & list);
    eprintf1("putdeviceparams: code=%d\n", code);
    gs_c_param_list_release(&list);

    gs_erasepage(pgs);
    gs_initgraphics(pgs);
    gs_clippath(pgs);
    gs_pathbbox(pgs, &cliprect);
    eprintf4("	cliprect = [[%g,%g],[%g,%g]]\n",
	     cliprect.p.x, cliprect.p.y, cliprect.q.x, cliprect.q.y);
    gs_newpath(pgs);

    switch (((rotate_value + 270) / 90) & 3) {
	default:
	case 0:		/* 0 = 360 degrees in PS == 90 degrees in printer */
	    xlate_x = cliprect.p.x;
	    xlate_y = cliprect.p.y;
	    break;
	case 1:		/* 90 degrees in PS = 180 degrees printer */
	    xlate_x = cliprect.q.x;
	    xlate_y = cliprect.p.y;
	    break;
	case 2:		/* 180 degrees in PS == 270 degrees in printer */
	    xlate_x = cliprect.q.x;
	    xlate_y = cliprect.q.y;
	    break;
	case 3:		/* 270 degrees in PS == 0 degrees in printer */
	    xlate_x = cliprect.p.x;
	    xlate_y = cliprect.q.y;
	    break;
    }
    eprintf2("translate origin to [ %f, %f ]\n", xlate_x, xlate_y);
    gs_translate(pgs, xlate_x, xlate_y);

    /* further move (before rotate) by user requested amount */
    gs_translate(pgs, 72.0 * (float)xmove_origin, 72.0 * (float)ymove_origin);

    gs_rotate(pgs, (float)rotate_value + 270.0);
    gs_scale(pgs, scale_x * 72.0 / 2032.0,
	     scale_y * 72.0 / 2032.0);
    gs_setlinecap(pgs, gs_cap_butt);
    gs_setlinejoin(pgs, gs_join_bevel);
    gs_setfilladjust(pgs, 0.0, 0.0);

    capture_exec(pgs);
    return 0;
}

#endif /* CAPTURE */