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- /* Copyright (C) 1995, 2000 Aladdin Enterprises. All rights reserved.
-
- This software is provided AS-IS with no warranty, either express or
- implied.
-
- This software is distributed under license and may not be copied,
- modified or distributed except as expressly authorized under the terms
- of the license contained in the file LICENSE in this distribution.
-
- For more information about licensing, please refer to
- http://www.ghostscript.com/licensing/. For information on
- commercial licensing, go to http://www.artifex.com/licensing/ or
- contact Artifex Software, Inc., 101 Lucas Valley Road #110,
- San Rafael, CA 94903, U.S.A., +1(415)492-9861.
- */
- /* $Id: gdevmrop.h,v 1.6 2002/06/16 07:25:26 lpd Exp $ */
- /* Definitions for device RasterOp implementations. */
- /* Requires gxdevmem.h, gsropt.h */
- #ifndef gdevmrop_INCLUDED
- # define gdevmrop_INCLUDED
- /*
- * Compute the effective RasterOp for the 1-bit case,
- * taking transparency into account.
- */
- gs_rop3_t gs_transparent_rop(gs_logical_operation_t lop);
- #ifdef DEBUG
- /* Trace a [strip_]copy_rop call. */
- void trace_copy_rop(const char *cname, gx_device * dev,
- const byte * sdata, int sourcex, uint sraster,
- gx_bitmap_id id, const gx_color_index * scolors,
- const gx_strip_bitmap * textures,
- const gx_color_index * tcolors,
- int x, int y, int width, int height,
- int phase_x, int phase_y, gs_logical_operation_t lop);
- #endif
- /*
- * PostScript colors normally act as the texture for RasterOp, with a null
- * (all zeros) source. For images with CombineWithColor = true, we need
- * a way to use the image data as the source. We implement this with a
- * device that applies RasterOp with a specified texture to drawing
- * operations, treating the drawing color as source rather than texture.
- * The texture is a gx_device_color; it may be any type of color, even a
- * pattern.
- */
- #ifndef gx_device_color_DEFINED
- # define gx_device_color_DEFINED
- typedef struct gx_device_color_s gx_device_color;
- #endif
- #ifndef gx_device_rop_texture_DEFINED
- # define gx_device_rop_texture_DEFINED
- typedef struct gx_device_rop_texture_s gx_device_rop_texture;
- #endif
- struct gx_device_rop_texture_s {
- gx_device_forward_common;
- gs_logical_operation_t log_op;
- gx_device_color texture;
- };
- #define private_st_device_rop_texture() /* in gdevrops.c */\
- gs_private_st_composite_use_final(st_device_rop_texture,\
- gx_device_rop_texture, "gx_device_rop_texture",\
- device_rop_texture_enum_ptrs, device_rop_texture_reloc_ptrs,\
- gx_device_finalize)
- /* Create a RasterOp source device. */
- int gx_alloc_rop_texture_device(gx_device_rop_texture ** prsdev,
- gs_memory_t * mem,
- client_name_t cname);
- /* Initialize a RasterOp source device. */
- void gx_make_rop_texture_device(gx_device_rop_texture * rsdev,
- gx_device * target,
- gs_logical_operation_t lop,
- const gx_device_color * texture);
- #endif /* gdevmrop_INCLUDED */
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