Recognize algorithm `disabled'.
(cross_disabled_images): New variable.
(COLOR_INTENSITY): New macro.
(x_detect_edges): Use COLOR_INTENSITY.
(x_disable_image): New function.
(syms_of_xfns): DEFVAR_BOOL cross_disabled_images.
disabled state, don't apply an image transformation algorithm if
the user specified an image for the disabled state. Use
`:algorthm disabled' for creating a disabled item's image if the
user hasn't specified an image.
allocation functions with the XPM lib.
(struct xpm_cached_color) [ALLOC_XPM_COLORS]: New structure.
(XPM_COLOR_CACHE_BUCKETS) [ALLOC_XPM_COLORS]: New macro.
(xpm_color_cache) [ALLOC_XPM_COLORS]: New variable.
(xpm_init_color_cache, xpm_free_color_cache, xpm_lookup_color)
(xpm_alloc_color, xpm_free_colors) [ALLOC_XPM_COLORS]: New
functions.
(xpm_load) [ALLOC_XPM_COLORS]: Use Emacs' own color allocation
functions, if possible, because these handle color allocation
failure more gracefully.
(Fimage_mask_p): New function.
conditional compilation on REL_ALLOC_MMAP to USE_MMAP_FOR_BUFFERS.
(mmap_alloc, mmap_free, mmap_realloc) [REL_ALLOC_MMAP]: Renamed
from former r_alloc_* functions in ralloc.c.
(mmap_page_size, mmap_initialized_p) [REL_ALLOC_MMAP]: New
variables.
(MEM_ALIGN) [REL_ALLOC_MMAP]: New macro.
(mmap_init) [REL_ALLOC_MMAP]: New function.
(alloc_buffer_text, enlarge_buffer_text, free_buffer_text): New
functions replacing macros BUFFER_ALLOC, BUFFER_REALLOC, and
BUFFER_FREE.
(MAX_MAP_SET_LEVEL): Increased to 30.
(PUSH_MAPPING_STACK): Enclose with do-while block.
(POP_MAPPING_STACK): Likewise.
(stack_idx_of_map_multiple): New variable.
(CCL_CALL_FOR_MAP_INSTRUCTION): New macro.
(ccl_driver) <CCL_IterateMultipleMap>: If the content is a symbol,
call the corresponding CCL program by
CCL_CALL_FOR_MAP_INSTRUCTION.
(ccl_driver) <CCL_MapSingle>: Likewise.
(ccl_driver) <CCL_MapMultiple>: Rewritten to fix many bugs, deal
with the case where looking up process reaches to the end of
map-set, and call CCL programs as the above change.
read-only in a dumped Emacs.
(mmap_fd_1): New variable.
(mmap_set_vars): Remove local `fd'. Save mmap_fd in mmap_fd_1,
restore it from there.
(r_alloc, r_re_alloc, r_alloc_free): Call r_alloc_init
unconditionally so that mmap_fd can be initialized there.
(r_alloc_init_fd): Open-coded in r_alloc_init; function removed.
(r_alloc_init) [REL_ALLOC_MMAP && !MAP_ANON]: Open /dev/zero.
(r_alloc_init) [REL_ALLOC_MMAP && MAP_ANON]: Set mmap_fd to -1.
