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- /* Copyright (C) 1999 Aladdin Enterprises. All rights reserved.
-
- This file is part of AFPL Ghostscript.
-
- AFPL 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 Free Public License (the
- "License") for full details.
-
- Every copy of AFPL 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 AFPL 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.
- */
-
- /*$Id: gdevmrun.h,v 1.2 2000/09/19 19:00:14 lpd Exp $ */
- /* Definition of run-length encoded memory device */
-
- #ifndef gdevmrun_INCLUDED
- # define gdevmrun_INCLUDED
-
- /*
- * This memory device stores full-size pixels with run-length
- * encoding if possible, switching to the standard uncompressed
- * representation if necessary.
- */
-
- #include "gxdevmem.h"
-
- /*
- * Define the device, built on a memory device.
- */
- typedef struct gx_device_run_s {
- gx_device_memory md; /* must be first */
- uint runs_per_line;
- int umin, umax1; /* some range of uninitialized lines */
- int smin, smax1; /* some range in standard (not run) form */
- /*
- * Save memory device procedures that we replace with run-oriented
- * ones, for use with the uncompressed representation.
- */
- struct sp_ {
- dev_proc_copy_mono((*copy_mono));
- dev_proc_copy_color((*copy_color));
- dev_proc_fill_rectangle((*fill_rectangle));
- dev_proc_copy_alpha((*copy_alpha));
- dev_proc_strip_tile_rectangle((*strip_tile_rectangle));
- dev_proc_strip_copy_rop((*strip_copy_rop));
- dev_proc_get_bits_rectangle((*get_bits_rectangle));
- } save_procs;
- } gx_device_run;
-
- /*
- * Convert a memory device to run-length form. The mdev argument should be
- * const, but it isn't because we need to call gx_device_white.
- */
- int gdev_run_from_mem(P2(gx_device_run *rdev, gx_device_memory *mdev));
-
- #endif /* gdevmrun_INCLUDED */
-