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/* Copyright (C) 1993, 1995, 1996, 1997, 1998 Aladdin Enterprises. All rights reserved.
This software is licensed to a single customer by Artifex Software Inc.
under the terms of a specific OEM agreement.
*/
/*$RCSfile$ $Revision$ */
/* Device color representation for Ghostscript */
#ifndef gxdcolor_INCLUDED
# define gxdcolor_INCLUDED
#include "gscsel.h"
#include "gsdcolor.h"
#include "gsropt.h"
#include "gsstruct.h" /* for extern_st, GC procs */
/* Define opaque types. */
#ifndef gx_device_DEFINED
# define gx_device_DEFINED
typedef struct gx_device_s gx_device;
#endif
/*
* Define a source structure for RasterOp.
*/
typedef struct gx_rop_source_s {
const byte *sdata;
int sourcex;
uint sraster;
gx_bitmap_id id;
gx_color_index scolors[2];
bool use_scolors;
} gx_rop_source_t;
/*
* Note that the following definition depends on the gx_color_index for
* black, which may not be 0. Clients must check this and construct
* a different null source if necessary.
*/
#define gx_rop_no_source_body(black_pixel)\
NULL, 0, 0, gx_no_bitmap_id, {black_pixel, black_pixel}, true
#define gx_rop_source_set_color(prs, pixel)\
((prs)->scolors[0] = (prs)->scolors[1] = (pixel))
void gx_set_rop_no_source(P3(const gx_rop_source_t **psource,
gx_rop_source_t *pno_source, gx_device *dev));
#define set_rop_no_source(source, no_source, dev)\
gx_set_rop_no_source(&(source), &(no_source), dev)
/*
* Define the device color structure per se.
*/
/* The typedef is in gsdcolor.h. */
/*typedef struct gx_device_color_type_s gx_device_color_type_t; */
struct gx_device_color_type_s {
/*
* In order to simplify memory management, we use a union, but since
* different variants may have different pointer tracing procedures,
* we have to define a separate GC structure type for each variant.
*/
gs_memory_type_ptr_t stype;
/*
* If necessary and possible, load the halftone or Pattern cache
* with the rendering of this color.
*/
#define dev_color_proc_load(proc)\
int proc(P4(gx_device_color *pdevc, const gs_imager_state *pis,\
gx_device *dev, gs_color_select_t select))
dev_color_proc_load((*load));
/*
* Fill a rectangle with the color.
* We pass the device separately so that pattern fills can
* substitute a tiled mask clipping device.
*/
#define dev_color_proc_fill_rectangle(proc)\
int proc(P8(const gx_device_color *pdevc, int x, int y, int w, int h,\
gx_device *dev, gs_logical_operation_t lop, const gx_rop_source_t *source))
dev_color_proc_fill_rectangle((*fill_rectangle));
/*
* Fill a masked region with a color. Nearly all device colors
* use the default implementation, which simply parses the mask
* into rectangles and calls fill_rectangle. Note that in this
* case there is no RasterOp source: the mask is the source.
*/
#define dev_color_proc_fill_masked(proc)\
int proc(P12(const gx_device_color *pdevc, const byte *data, int data_x,\
int raster, gx_bitmap_id id, int x, int y, int w, int h,\
gx_device *dev, gs_logical_operation_t lop, bool invert))
dev_color_proc_fill_masked((*fill_masked));
/*
* Test whether this color is equal to another.
*/
#define dev_color_proc_equal(proc)\
bool proc(P2(const gx_device_color *pdevc1, const gx_device_color *pdevc2))
dev_color_proc_equal((*equal));
};
/* Define the default implementation of fill_masked. */
dev_color_proc_fill_masked(gx_dc_default_fill_masked);
extern_st(st_device_color);
/* public_st_device_color() is defined in gsdcolor.h */
/* Define the standard device color types. */
/* See gsdcolor.h for details. */
extern const gx_device_color_type_t
#define gx_dc_type_none (&gx_dc_type_data_none)
gx_dc_type_data_none, /* gxdcolor.c */
#define gx_dc_type_null (&gx_dc_type_data_null)
gx_dc_type_data_null, /* gxdcolor.c */
#define gx_dc_type_pure (&gx_dc_type_data_pure)
gx_dc_type_data_pure, /* gxdcolor.c */
/*#define gx_dc_type_pattern (&gx_dc_type_data_pattern) */
/*gx_dc_type_data_pattern, *//* gspcolor.c */
#define gx_dc_type_ht_binary (&gx_dc_type_data_ht_binary)
gx_dc_type_data_ht_binary, /* gxht.c */
#define gx_dc_type_ht_colored (&gx_dc_type_data_ht_colored)
gx_dc_type_data_ht_colored; /* gxcht.c */
#define gs_color_writes_pure(pgs)\
color_writes_pure((pgs)->dev_color, (pgs)->log_op)
/* Set up device color 1 for writing into a mask cache */
/* (e.g., the character cache). */
void gx_set_device_color_1(P1(gs_state * pgs));
/* Remap the color if necessary. */
int gx_remap_color(P1(gs_state *));
#define gx_set_dev_color(pgs)\
if ( !color_is_set((pgs)->dev_color) )\
{ int code_dc = gx_remap_color(pgs);\
if ( code_dc != 0 ) return code_dc;\
}
/* Indicate that the device color needs remapping. */
#define gx_unset_dev_color(pgs)\
color_unset((pgs)->dev_color)
/* Load the halftone cache in preparation for drawing. */
#define gx_color_load_select(pdevc, pis, dev, select)\
(*(pdevc)->type->load)(pdevc, pis, dev, select)
#define gx_color_load(pdevc, pis, dev)\
gx_color_load_select(pdevc, pis, dev, gs_color_select_texture)
#define gs_state_color_load(pgs)\
gx_color_load((pgs)->dev_color, (const gs_imager_state *)(pgs),\
(pgs)->device)
/* Fill a rectangle with a color. */
#define gx_device_color_fill_rectangle(pdevc, x, y, w, h, dev, lop, source)\
(*(pdevc)->type->fill_rectangle)(pdevc, x, y, w, h, dev, lop, source)
#define gx_fill_rectangle_device_rop(x, y, w, h, pdevc, dev, lop)\
gx_device_color_fill_rectangle(pdevc, x, y, w, h, dev, lop, NULL)
#define gx_fill_rectangle_rop(x, y, w, h, pdevc, lop, pgs)\
gx_fill_rectangle_device_rop(x, y, w, h, pdevc, (pgs)->device, lop)
#define gx_fill_rectangle(x, y, w, h, pdevc, pgs)\
gx_fill_rectangle_rop(x, y, w, h, pdevc, (pgs)->log_op, pgs)
/* Test device colors for equality. */
#define gx_device_color_equal(pdevc1, pdevc2)\
(((pdevc1)->type->equal)(pdevc1, pdevc2))
#endif /* gxdcolor_INCLUDED */
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