home *** CD-ROM | disk | FTP | other *** search
- /* Copyright (C) 1993, 1996 Aladdin Enterprises. All rights reserved.
-
- This file is part of Aladdin Ghostscript.
-
- Aladdin Ghostscript is distributed with NO WARRANTY OF ANY KIND. No author
- or distributor accepts any responsibility for the consequences of using it,
- or for whether it serves any particular purpose or works at all, unless he
- or she says so in writing. Refer to the Aladdin Ghostscript Free Public
- License (the "License") for full details.
-
- Every copy of Aladdin Ghostscript must include a copy of the License,
- normally in a plain ASCII text file named PUBLIC. The License grants you
- the right to copy, modify and redistribute Aladdin Ghostscript, but only
- under certain conditions described in the License. Among other things, the
- License requires that the copyright notice and this notice be preserved on
- all copies.
- */
-
- /* gxclip2.h */
- /* Mask clipping device and interface */
- /* Requires gxdevice.h, gxdevmem.h */
-
- /*
- * Patterns that don't completely fill their bounding boxes require
- * the ability to clip against a tiled mask. For now, we only support
- * tiling parallel to the axes.
- */
-
- #define tile_clip_buffer_request 300
- #define tile_clip_buffer_size\
- ((tile_clip_buffer_request / arch_sizeof_long) * arch_sizeof_long)
- typedef struct gx_device_tile_clip_s {
- gx_device_forward_common; /* target is set by client */
- gx_strip_bitmap tiles;
- gx_device_memory mdev; /* for tile buffer for copy_mono */
- gs_int_point phase; /* device space origin relative */
- /* to tile (backwards from gstate phase) */
- /* Ensure that the buffer is long-aligned. */
- union _b {
- byte bytes[tile_clip_buffer_size];
- ulong longs[tile_clip_buffer_size / arch_sizeof_long];
- } buffer;
- } gx_device_tile_clip;
- #define private_st_device_tile_clip() /* in gxclip2.c */\
- gs_private_st_simple(st_device_tile_clip, gx_device_tile_clip,\
- "gx_device_tile_clip")
-
- /* Initialize a tile clipping device from a mask. */
- /* We supply an explicit phase. */
- int tile_clip_initialize(P5(gx_device_tile_clip *, const gx_strip_bitmap *,
- gx_device *, int, int));
-
- /* Set the phase of the tile -- used in the tiling loop when */
- /* the tile doesn't simply fill the plane. */
- void tile_clip_set_phase(P3(gx_device_tile_clip *, int, int));
-