/* Functions for image support on window system.
- Copyright (C) 1989, 1992-2012 Free Software Foundation, Inc.
+
+Copyright (C) 1989, 1992-2012 Free Software Foundation, Inc.
This file is part of GNU Emacs.
#include <config.h>
#include <stdio.h>
-#include <math.h>
-#include <ctype.h>
#include <unistd.h>
#ifdef HAVE_PNG
#include <setjmp.h>
+#include <c-ctype.h>
+
/* This makes the fields of a Display accessible, in Xlib header files. */
#define XLIB_ILLEGAL_ACCESS
#include "termhooks.h"
#include "font.h"
-#ifdef HAVE_X_WINDOWS
-#include "xterm.h"
-#include <sys/types.h>
+#ifdef HAVE_SYS_STAT_H
#include <sys/stat.h>
+#endif /* HAVE_SYS_STAT_H */
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif /* HAVE_SYS_TYPES_H */
+
+#ifdef HAVE_WINDOW_SYSTEM
+#include TERM_HEADER
+#endif /* HAVE_WINDOW_SYSTEM */
+
+#ifdef HAVE_X_WINDOWS
#define COLOR_TABLE_SUPPORT 1
typedef struct x_bitmap_record Bitmap_Record;
#define PIX_MASK_DRAW 1
#endif /* HAVE_X_WINDOWS */
-
#ifdef HAVE_NTGUI
#include "w32.h"
-#include "w32term.h"
-
/* W32_TODO : Color tables on W32. */
#undef COLOR_TABLE_SUPPORT
#define PIX_MASK_RETAIN 0
#define PIX_MASK_DRAW 1
-#define FRAME_X_VISUAL(f) FRAME_X_DISPLAY_INFO (f)->visual
#define x_defined_color w32_defined_color
#define DefaultDepthOfScreen(screen) (one_w32_display_info.n_cbits)
-/* Functions from w32term.c that depend on XColor (so can't go in w32term.h
- without modifying lots of files). */
-extern void x_query_colors (struct frame *f, XColor *colors, int ncolors);
-extern void x_query_color (struct frame *f, XColor *color);
-
/* Version of libpng that we were compiled with, or -1 if no PNG
support was compiled in. This is tested by w32-win.el to correctly
set up the alist used to search for PNG libraries. */
#endif /* HAVE_NTGUI */
#ifdef HAVE_NS
-#include "nsterm.h"
-#include <sys/types.h>
-#include <sys/stat.h>
-
#undef COLOR_TABLE_SUPPORT
typedef struct ns_bitmap_record Bitmap_Record;
#define PIX_MASK_RETAIN 0
#define PIX_MASK_DRAW 1
-#define FRAME_X_VISUAL FRAME_NS_DISPLAY_INFO (f)->visual
#define x_defined_color(f, name, color_def, alloc) \
ns_defined_color (f, name, color_def, alloc, 0)
-#define FRAME_X_SCREEN(f) 0
#define DefaultDepthOfScreen(screen) x_display_list->n_planes
#endif /* HAVE_NS */
static void free_color_table (void);
static unsigned long *colors_in_color_table (int *n);
#endif
-static Lisp_Object Finit_image_library (Lisp_Object, Lisp_Object);
/* Code to deal with bitmaps. Bitmaps are referenced by their bitmap
id, which is just an int that this section returns. Bitmaps are
id = x_allocate_bitmap_record (f);
dpyinfo->bitmaps[id - 1].img = bitmap;
dpyinfo->bitmaps[id - 1].refcount = 1;
- dpyinfo->bitmaps[id - 1].file = (char *) xmalloc (SBYTES (file) + 1);
+ dpyinfo->bitmaps[id - 1].file = xmalloc (SBYTES (file) + 1);
dpyinfo->bitmaps[id - 1].depth = 1;
dpyinfo->bitmaps[id - 1].height = ns_image_width (bitmap);
dpyinfo->bitmaps[id - 1].width = ns_image_height (bitmap);
- strcpy (dpyinfo->bitmaps[id - 1].file, SDATA (file));
+ strcpy (dpyinfo->bitmaps[id - 1].file, SSDATA (file));
return id;
#endif
dpyinfo->bitmaps[id - 1].pixmap = bitmap;
dpyinfo->bitmaps[id - 1].have_mask = 0;
dpyinfo->bitmaps[id - 1].refcount = 1;
- dpyinfo->bitmaps[id - 1].file = (char *) xmalloc (SBYTES (file) + 1);
+ dpyinfo->bitmaps[id - 1].file = xmalloc (SBYTES (file) + 1);
dpyinfo->bitmaps[id - 1].depth = 1;
dpyinfo->bitmaps[id - 1].height = height;
dpyinfo->bitmaps[id - 1].width = width;
if (--bm->refcount == 0)
{
- BLOCK_INPUT;
+ block_input ();
free_bitmap_record (dpyinfo, bm);
- UNBLOCK_INPUT;
+ unblock_input ();
}
}
}
width = x_bitmap_width (f, id);
height = x_bitmap_height (f, id);
- BLOCK_INPUT;
+ block_input ();
ximg = XGetImage (FRAME_X_DISPLAY (f), pixmap, 0, 0, width, height,
~0, ZPixmap);
if (!ximg)
{
- UNBLOCK_INPUT;
+ unblock_input ();
return -1;
}
result = x_create_x_image_and_pixmap (f, width, height, 1, &mask_img, &mask);
- UNBLOCK_INPUT;
+ unblock_input ();
if (!result)
{
XDestroyImage (ximg);
}
}
- xassert (interrupt_input_blocked);
+ eassert (input_blocked_p ());
gc = XCreateGC (FRAME_X_DISPLAY (f), mask, 0, NULL);
XPutImage (FRAME_X_DISPLAY (f), mask, gc, mask_img, 0, 0, 0, 0,
width, height);
/* Function prototypes. */
-static Lisp_Object define_image_type (struct image_type *type, int loaded);
-static struct image_type *lookup_image_type (Lisp_Object symbol);
+static struct image_type *define_image_type (struct image_type *);
+static struct image_type *lookup_image_type (Lisp_Object);
static void image_error (const char *format, Lisp_Object, Lisp_Object);
static void x_laplace (struct frame *, struct image *);
static void x_emboss (struct frame *, struct image *);
/* Define a new image type from TYPE. This adds a copy of TYPE to
image_types and caches the loading status of TYPE. */
-static Lisp_Object
-define_image_type (struct image_type *type, int loaded)
+static struct image_type *
+define_image_type (struct image_type *type)
{
- Lisp_Object success;
+ struct image_type *p = NULL;
+ Lisp_Object target_type = *type->type;
+ int type_valid = 1;
- if (!loaded)
- success = Qnil;
- else
+ block_input ();
+
+ for (p = image_types; p; p = p->next)
+ if (EQ (*p->type, target_type))
+ goto done;
+
+ if (type->init)
+ {
+#ifdef HAVE_NTGUI
+ /* If we failed to load the library before, don't try again. */
+ Lisp_Object tested = Fassq (target_type, Vlibrary_cache);
+ if (CONSP (tested) && NILP (XCDR (tested)))
+ type_valid = 0;
+ else
+#endif
+ {
+ type_valid = type->init ();
+ CACHE_IMAGE_TYPE (target_type, type_valid ? Qt : Qnil);
+ }
+ }
+
+ if (type_valid)
{
/* Make a copy of TYPE to avoid a bus error in a dumped Emacs.
The initialized data segment is read-only. */
- struct image_type *p = (struct image_type *) xmalloc (sizeof *p);
- memcpy (p, type, sizeof *p);
+ p = xmalloc (sizeof *p);
+ *p = *type;
p->next = image_types;
image_types = p;
- success = Qt;
}
- CACHE_IMAGE_TYPE (*type->type, success);
- return success;
-}
-
-
-/* Look up image type SYMBOL, and return a pointer to its image_type
- structure. Value is null if SYMBOL is not a known image type. */
-
-static inline struct image_type *
-lookup_image_type (Lisp_Object symbol)
-{
- struct image_type *type;
-
- /* We must initialize the image-type if it hasn't been already. */
- if (NILP (Finit_image_library (symbol, Vdynamic_library_alist)))
- return 0; /* unimplemented */
-
- for (type = image_types; type; type = type->next)
- if (EQ (symbol, *type->type))
- break;
-
- return type;
+ done:
+ unblock_input ();
+ return p;
}
/* Record that we recognized the keyword. If a keywords
was found more than once, it's an error. */
keywords[i].value = value;
- ++keywords[i].count;
-
if (keywords[i].count > 1)
return 0;
+ ++keywords[i].count;
/* Check type of value against allowed type. */
switch (keywords[i].type)
break;
default:
- abort ();
+ emacs_abort ();
break;
}
{
Lisp_Object tail;
- xassert (valid_image_p (spec));
+ eassert (valid_image_p (spec));
for (tail = XCDR (spec);
CONSP (tail) && CONSP (XCDR (tail));
static void free_image (struct frame *f, struct image *img);
-#define MAX_IMAGE_SIZE 6.0
+#define MAX_IMAGE_SIZE 10.0
/* Allocate and return a new image structure for image specification
SPEC. SPEC has a hash value of HASH. */
static struct image *
make_image (Lisp_Object spec, EMACS_UINT hash)
{
- struct image *img = (struct image *) xmalloc (sizeof *img);
+ struct image *img = xzalloc (sizeof *img);
Lisp_Object file = image_spec_value (spec, QCfile, NULL);
- xassert (valid_image_p (spec));
- memset (img, 0, sizeof *img);
+ eassert (valid_image_p (spec));
img->dependencies = NILP (file) ? Qnil : list1 (file);
img->type = lookup_image_type (image_spec_value (spec, QCtype, NULL));
- xassert (img->type != NULL);
+ eassert (img->type != NULL);
img->spec = spec;
img->lisp_data = Qnil;
img->ascent = DEFAULT_IMAGE_ASCENT;
void
prepare_image_for_display (struct frame *f, struct image *img)
{
- EMACS_TIME t;
-
/* We're about to display IMG, so set its timestamp to `now'. */
- EMACS_GET_TIME (t);
- img->timestamp = EMACS_SECS (t);
+ img->timestamp = current_emacs_time ();
/* If IMG doesn't have a pixmap yet, load it now, using the image
type dependent loader function. */
static void
x_clear_image (struct frame *f, struct image *img)
{
- BLOCK_INPUT;
+ block_input ();
x_clear_image_1 (f, img, 1, 1, 1);
- UNBLOCK_INPUT;
+ unblock_input ();
}
XColor color;
unsigned long result;
- xassert (STRINGP (color_name));
+ eassert (STRINGP (color_name));
if (x_defined_color (f, SSDATA (color_name), &color, 1)
&& img->ncolors < min (min (PTRDIFF_MAX, SIZE_MAX) / sizeof *img->colors,
/* This isn't called frequently so we get away with simply
reallocating the color vector to the needed size, here. */
ptrdiff_t ncolors = img->ncolors + 1;
- img->colors =
- (unsigned long *) xrealloc (img->colors,
- ncolors * sizeof *img->colors);
+ img->colors = xrealloc (img->colors, ncolors * sizeof *img->colors);
img->colors[ncolors - 1] = color.pixel;
img->ncolors = ncolors;
result = color.pixel;
struct image_cache *
make_image_cache (void)
{
- struct image_cache *c = (struct image_cache *) xmalloc (sizeof *c);
+ struct image_cache *c = xzalloc (sizeof *c);
int size;
- memset (c, 0, sizeof *c);
size = 50;
- c->images = (struct image **) xmalloc (size * sizeof *c->images);
+ c->images = xmalloc (size * sizeof *c->images);
c->size = size;
size = IMAGE_CACHE_BUCKETS_SIZE * sizeof *c->buckets;
- c->buckets = (struct image **) xmalloc (size);
- memset (c->buckets, 0, size);
+ c->buckets = xzalloc (size);
return c;
}
ptrdiff_t i;
/* Cache should not be referenced by any frame when freed. */
- xassert (c->refcount == 0);
+ eassert (c->refcount == 0);
for (i = 0; i < c->used; ++i)
free_image (f, c->images[i]);
/* Block input so that we won't be interrupted by a SIGIO
while being in an inconsistent state. */
- BLOCK_INPUT;
+ block_input ();
if (!NILP (filter))
{
else if (INTEGERP (Vimage_cache_eviction_delay))
{
/* Free cache based on timestamp. */
- EMACS_TIME t;
- double old, delay;
+ EMACS_TIME old, t;
+ double delay;
ptrdiff_t nimages = 0;
for (i = 0; i < c->used; ++i)
delay = 1600 * delay / nimages / nimages;
delay = max (delay, 1);
- EMACS_GET_TIME (t);
- old = EMACS_SECS (t) - delay;
+ t = current_emacs_time ();
+ old = sub_emacs_time (t, EMACS_TIME_FROM_DOUBLE (delay));
for (i = 0; i < c->used; ++i)
{
struct image *img = c->images[i];
- if (img && img->timestamp < old)
+ if (img && EMACS_TIME_LT (img->timestamp, old))
{
free_image (f, img);
++nfreed;
++windows_or_buffers_changed;
}
- UNBLOCK_INPUT;
+ unblock_input ();
}
}
{
struct image *img;
EMACS_UINT hash;
- EMACS_TIME now;
/* F must be a window-system frame, and SPEC must be a valid image
specification. */
- xassert (FRAME_WINDOW_P (f));
- xassert (valid_image_p (spec));
+ eassert (FRAME_WINDOW_P (f));
+ eassert (valid_image_p (spec));
/* Look up SPEC in the hash table of the image cache. */
hash = sxhash (spec, 0);
/* If not found, create a new image and cache it. */
if (img == NULL)
{
- BLOCK_INPUT;
+ block_input ();
img = make_image (spec, hash);
cache_image (f, img);
img->load_failed_p = img->type->load (f, img) == 0;
`:ascent ASCENT', `:margin MARGIN', `:relief RELIEF',
`:background COLOR'. */
Lisp_Object ascent, margin, relief, bg;
+ int relief_bound;
ascent = image_spec_value (spec, QCascent, NULL);
if (INTEGERP (ascent))
}
relief = image_spec_value (spec, QCrelief, NULL);
- if (INTEGERP (relief))
+ relief_bound = INT_MAX - max (img->hmargin, img->vmargin);
+ if (RANGED_INTEGERP (- relief_bound, relief, relief_bound))
{
img->relief = XINT (relief);
img->hmargin += eabs (img->relief);
postprocess_image (f, img);
}
- UNBLOCK_INPUT;
+ unblock_input ();
}
/* We're using IMG, so set its timestamp to `now'. */
- EMACS_GET_TIME (now);
- img->timestamp = EMACS_SECS (now);
+ img->timestamp = current_emacs_time ();
/* Value is the image id. */
return img->id;
Window window = FRAME_X_WINDOW (f);
Screen *screen = FRAME_X_SCREEN (f);
- xassert (interrupt_input_blocked);
+ eassert (input_blocked_p ());
if (depth <= 0)
depth = DefaultDepthOfScreen (screen);
}
/* Allocate image raster. */
- (*ximg)->data = (char *) xmalloc ((*ximg)->bytes_per_line * height);
+ (*ximg)->data = xmalloc ((*ximg)->bytes_per_line * height);
/* Allocate a pixmap of the same size. */
*pixmap = XCreatePixmap (display, window, width, height, depth);
static void
x_destroy_x_image (XImagePtr ximg)
{
- xassert (interrupt_input_blocked);
+ eassert (input_blocked_p ());
if (ximg)
{
#ifdef HAVE_X_WINDOWS
#ifdef HAVE_X_WINDOWS
GC gc;
- xassert (interrupt_input_blocked);
+ eassert (input_blocked_p ());
gc = XCreateGC (FRAME_X_DISPLAY (f), pixmap, 0, NULL);
XPutImage (FRAME_X_DISPLAY (f), pixmap, gc, ximg, 0, 0, 0, 0, width, height);
XFreeGC (FRAME_X_DISPLAY (f), gc);
#endif /* HAVE_NTGUI */
#ifdef HAVE_NS
- xassert (ximg == pixmap);
+ eassert (ximg == pixmap);
ns_retain_object (ximg);
#endif
}
if (stat (file, &st) == 0
&& (fp = fopen (file, "rb")) != NULL
&& 0 <= st.st_size && st.st_size <= min (PTRDIFF_MAX, SIZE_MAX)
- && (buf = (unsigned char *) xmalloc (st.st_size),
+ && (buf = xmalloc (st.st_size),
fread (buf, 1, st.st_size, fp) == st.st_size))
{
*size = st.st_size;
xbm_image_p,
xbm_load,
x_clear_image,
+ NULL,
NULL
};
if (!parse_image_spec (object, kw, XBM_LAST, Qxbm))
return 0;
- xassert (EQ (kw[XBM_TYPE].value, Qxbm));
+ eassert (EQ (kw[XBM_TYPE].value, Qxbm));
if (kw[XBM_FILE].count)
{
for one line of the image. */
for (i = 0; i < height; ++i)
{
- Lisp_Object elt = XVECTOR (data)->contents[i];
+ Lisp_Object elt = AREF (data, i);
if (STRINGP (elt))
{
loop:
/* Skip white space. */
- while (*s < end && (c = *(*s)++, isspace (c)))
+ while (*s < end && (c = *(*s)++, c_isspace (c)))
;
if (*s >= end)
c = 0;
- else if (isdigit (c))
+ else if (c_isdigit (c))
{
int value = 0, digit;
while (*s < end)
{
c = *(*s)++;
- if (isdigit (c))
+ if (c_isdigit (c))
digit = c - '0';
else if (c >= 'a' && c <= 'f')
digit = c - 'a' + 10;
value = 16 * value + digit;
}
}
- else if (isdigit (c))
+ else if (c_isdigit (c))
{
value = c - '0';
while (*s < end
- && (c = *(*s)++, isdigit (c)))
+ && (c = *(*s)++, c_isdigit (c)))
value = 8 * value + c - '0';
}
}
{
value = c - '0';
while (*s < end
- && (c = *(*s)++, isdigit (c)))
+ && (c = *(*s)++, c_isdigit (c)))
value = 10 * value + c - '0';
}
*ival = value;
c = XBM_TK_NUMBER;
}
- else if (isalpha (c) || c == '_')
+ else if (c_isalpha (c) || c == '_')
{
*sval++ = c;
while (*s < end
- && (c = *(*s)++, (isalnum (c) || c == '_')))
+ && (c = *(*s)++, (c_isalnum (c) || c == '_')))
*sval++ = c;
*sval = 0;
if (*s < end)
w1 = (width + 7) / 8; /* nb of 8bits elt in X bitmap */
w2 = ((width + 15) / 16) * 2; /* nb of 16bits elt in W32 bitmap */
- bits = (unsigned char *) alloca (height * w2);
+ bits = alloca (height * w2);
memset (bits, 0, height * w2);
for (i = 0; i < height; i++)
{
}
bytes_per_line = (*width + 7) / 8 + padding_p;
nbytes = bytes_per_line * *height;
- p = *data = (char *) xmalloc (nbytes);
+ p = *data = xmalloc (nbytes);
if (v10)
{
int non_default_colors = 0;
Lisp_Object value;
- xassert (img->width > 0 && img->height > 0);
+ eassert (img->width > 0 && img->height > 0);
/* Get foreground and background colors, maybe allocate colors. */
value = image_spec_value (img->spec, QCforeground, NULL);
int success_p = 0;
Lisp_Object file_name;
- xassert (xbm_image_p (img->spec));
+ eassert (xbm_image_p (img->spec));
/* If IMG->spec specifies a file name, create a non-file spec from it. */
file_name = image_spec_value (img->spec, QCfile, NULL);
memcpy (fmt, xbm_format, sizeof fmt);
parsed_p = parse_image_spec (img->spec, fmt, XBM_LAST, Qxbm);
(void) parsed_p;
- xassert (parsed_p);
+ eassert (parsed_p);
/* Get specified width, and height. */
if (!in_memory_file_p)
{
img->width = XFASTINT (fmt[XBM_WIDTH].value);
img->height = XFASTINT (fmt[XBM_HEIGHT].value);
- xassert (img->width > 0 && img->height > 0);
+ eassert (img->width > 0 && img->height > 0);
if (!check_image_size (f, img->width, img->height))
{
image_error ("Invalid image size (see `max-image-size')",
char *p;
int nbytes = (img->width + BITS_PER_CHAR - 1) / BITS_PER_CHAR;
- p = bits = (char *) alloca (nbytes * img->height);
+ p = bits = alloca (nbytes * img->height);
for (i = 0; i < img->height; ++i, p += nbytes)
{
- Lisp_Object line = XVECTOR (data)->contents[i];
+ Lisp_Object line = AREF (data, i);
if (STRINGP (line))
memcpy (p, SDATA (line), nbytes);
else
invertedBits = bits;
nbytes = (img->width + BITS_PER_CHAR - 1) / BITS_PER_CHAR
* img->height;
- bits = (char *) alloca (nbytes);
+ bits = alloca (nbytes);
for (i = 0; i < nbytes; i++)
bits[i] = XBM_BIT_SHUFFLE (invertedBits[i]);
}
{":background", IMAGE_STRING_OR_NIL_VALUE, 0}
};
+#ifdef HAVE_NTGUI
+static int init_xpm_functions (void);
+#else
+#define init_xpm_functions NULL
+#endif
+
/* Structure describing the image type XPM. */
static struct image_type xpm_type =
xpm_image_p,
xpm_load,
x_clear_image,
+ init_xpm_functions,
NULL
};
xpm_init_color_cache (struct frame *f, XpmAttributes *attrs)
{
size_t nbytes = XPM_COLOR_CACHE_BUCKETS * sizeof *xpm_color_cache;
- xpm_color_cache = (struct xpm_cached_color **) xmalloc (nbytes);
- memset (xpm_color_cache, 0, nbytes);
+ xpm_color_cache = xzalloc (nbytes);
init_color_table ();
if (attrs->valuemask & XpmColorSymbols)
bucket = xpm_color_bucket (color_name);
nbytes = offsetof (struct xpm_cached_color, name) + strlen (color_name) + 1;
- p = (struct xpm_cached_color *) xmalloc (nbytes);
+ p = xmalloc (nbytes);
strcpy (p->name, color_name);
p->color = *color;
p->next = xpm_color_cache[bucket];
DEF_IMGLIB_FN (void, XImageFree, (xpm_XImage *));
static int
-init_xpm_functions (Lisp_Object libraries)
+init_xpm_functions (void)
{
HMODULE library;
- if (!(library = w32_delayed_load (libraries, Qxpm)))
+ if (!(library = w32_delayed_load (Qxpm)))
return 0;
LOAD_IMGLIB_FN (library, XpmFreeAttributes);
/* Allocate an XpmColorSymbol array. */
size = attrs.numsymbols * sizeof *xpm_syms;
- xpm_syms = (XpmColorSymbol *) alloca (size);
+ xpm_syms = alloca (size);
memset (xpm_syms, 0, size);
attrs.colorsymbols = xpm_syms;
color = XCDR (XCAR (tail));
if (STRINGP (name))
{
- xpm_syms[i].name = (char *) alloca (SCHARS (name) + 1);
+ xpm_syms[i].name = alloca (SCHARS (name) + 1);
strcpy (xpm_syms[i].name, SSDATA (name));
}
else
xpm_syms[i].name = empty_string;
if (STRINGP (color))
{
- xpm_syms[i].value = (char *) alloca (SCHARS (color) + 1);
+ xpm_syms[i].value = alloca (SCHARS (color) + 1);
strcpy (xpm_syms[i].value, SSDATA (color));
}
else
img->width = attrs.width;
img->height = attrs.height;
- xassert (img->width > 0 && img->height > 0);
+ eassert (img->width > 0 && img->height > 0);
/* The call to XpmFreeAttributes below frees attrs.alloc_pixels. */
#ifdef HAVE_NTGUI
while (*s < end)
{
/* Skip white-space. */
- while (*s < end && (c = *(*s)++, isspace (c)))
+ while (*s < end && (c = *(*s)++, c_isspace (c)))
;
/* gnus-pointer.xpm uses '-' in its identifier.
sb-dir-plus.xpm uses '+' in its identifier. */
- if (isalpha (c) || c == '_' || c == '-' || c == '+')
+ if (c_isalpha (c) || c == '_' || c == '-' || c == '+')
{
*beg = *s - 1;
while (*s < end
- && (c = **s, isalnum (c) || c == '_' || c == '-' || c == '+'))
+ && (c = **s, c_isalnum (c)
+ || c == '_' || c == '-' || c == '+'))
++*s;
*len = *s - *beg;
return XPM_TK_IDENT;
int chars_len,
Lisp_Object color)
{
- XVECTOR (color_table)->contents[*chars_start] = color;
+ ASET (color_table, *chars_start, color);
}
static Lisp_Object
const unsigned char *chars_start,
int chars_len)
{
- return XVECTOR (color_table)->contents[*chars_start];
+ return AREF (color_table, *chars_start);
}
static Lisp_Object
{
if (xstrcasecmp (SSDATA (XCDR (specified_color)), "None") == 0)
color_val = Qt;
- else if (x_defined_color (f, SDATA (XCDR (specified_color)),
+ else if (x_defined_color (f, SSDATA (XCDR (specified_color)),
&cdef, 0))
color_val = make_number (cdef.pixel);
}
failure:
image_error ("Invalid XPM file (%s)", img->spec, Qnil);
- error:
x_destroy_x_image (ximg);
x_destroy_x_image (mask_img);
x_clear_image (f, img);
return 0;
}
- contents = slurp_file (SDATA (file), &size);
+ contents = slurp_file (SSDATA (file), &size);
if (contents == NULL)
{
image_error ("Error loading XPM image `%s'", img->spec, Qnil);
init_color_table (void)
{
int size = CT_SIZE * sizeof (*ct_table);
- ct_table = (struct ct_color **) xmalloc (size);
- memset (ct_table, 0, size);
+ ct_table = xzalloc (size);
ct_colors_allocated = 0;
}
if (rc)
{
++ct_colors_allocated;
- p = (struct ct_color *) xmalloc (sizeof *p);
+ p = xmalloc (sizeof *p);
p->r = r;
p->g = g;
p->b = b;
color = RGB_TO_ULONG (r, g, b);
#endif /* HAVE_NTGUI */
++ct_colors_allocated;
- p = (struct ct_color *) xmalloc (sizeof *p);
+ p = xmalloc (sizeof *p);
p->r = r;
p->g = g;
p->b = b;
x_query_color (f, &color);
rc = x_alloc_nearest_color (f, cmap, &color);
#else
- BLOCK_INPUT;
+ block_input ();
cmap = DefaultColormapOfScreen (FRAME_X_SCREEN (f));
color.pixel = pixel;
XQueryColor (NULL, cmap, &color);
rc = x_alloc_nearest_color (f, cmap, &color);
- UNBLOCK_INPUT;
+ unblock_input ();
#endif /* HAVE_X_WINDOWS */
if (rc)
{
++ct_colors_allocated;
- p = (struct ct_color *) xmalloc (sizeof *p);
+ p = xmalloc (sizeof *p);
p->r = color.red;
p->g = color.green;
p->b = color.blue;
}
else
{
- colors = (unsigned long *) xmalloc (ct_colors_allocated
- * sizeof *colors);
+ colors = xmalloc (ct_colors_allocated * sizeof *colors);
*n = ct_colors_allocated;
for (i = j = 0; i < CT_SIZE; ++i)
if (min (PTRDIFF_MAX, SIZE_MAX) / sizeof *colors / img->width < img->height)
memory_full (SIZE_MAX);
- colors = (XColor *) xmalloc (sizeof *colors * img->width * img->height);
+ colors = xmalloc (sizeof *colors * img->width * img->height);
#ifndef HAVE_NTGUI
/* Get the X image IMG->pixmap. */
p = colors;
for (y = 0; y < img->height; ++y)
{
- XColor *row = p;
-
#if defined (HAVE_X_WINDOWS) || defined (HAVE_NTGUI)
+ XColor *row = p;
for (x = 0; x < img->width; ++x, ++p)
p->pixel = GET_PIXEL (ximg, x, y);
if (rgb_p)
if (min (PTRDIFF_MAX, SIZE_MAX) / sizeof *new / img->width < img->height)
memory_full (SIZE_MAX);
- new = (XColor *) xmalloc (sizeof *new * img->width * img->height);
+ new = xmalloc (sizeof *new * img->width * img->height);
for (y = 0; y < img->height; ++y)
{
if (n_planes < 2 || cross_disabled_images)
{
#ifndef HAVE_NTGUI
- Display *dpy = FRAME_X_DISPLAY (f);
- GC gc;
-
#ifndef HAVE_NS /* TODO: NS support, however this not needed for toolbars */
#define MaskForeground(f) WHITE_PIX_DEFAULT (f)
- gc = XCreateGC (dpy, img->pixmap, 0, NULL);
+ Display *dpy = FRAME_X_DISPLAY (f);
+ GC gc = XCreateGC (dpy, img->pixmap, 0, NULL);
XSetForeground (dpy, gc, BLACK_PIX_DEFAULT (f));
XDrawLine (dpy, img->pixmap, gc, 0, 0,
img->width - 1, img->height - 1);
#else
/* Create the bit array serving as mask. */
row_width = (img->width + 7) / 8;
- mask_img = xmalloc (row_width * img->height);
- memset (mask_img, 0, row_width * img->height);
+ mask_img = xzalloc (row_width * img->height);
/* Create a memory device context for IMG->pixmap. */
frame_dc = get_frame_dc (f);
pbm_image_p,
pbm_load,
x_clear_image,
+ NULL,
NULL
};
while (*s < end)
{
/* Skip white-space. */
- while (*s < end && (c = *(*s)++, isspace (c)))
+ while (*s < end && (c = *(*s)++, c_isspace (c)))
;
if (c == '#')
while (*s < end && (c = *(*s)++, c != '\n'))
;
}
- else if (isdigit (c))
+ else if (c_isdigit (c))
{
/* Read decimal number. */
val = c - '0';
- while (*s < end && (c = *(*s)++, isdigit (c)))
+ while (*s < end && (c = *(*s)++, c_isdigit (c)))
val = 10 * val + c - '0';
break;
}
if (stat (SDATA (file), &st) == 0
&& (fp = fopen (SDATA (file), "rb")) != NULL
&& 0 <= st.st_size && st.st_size <= min (PTRDIFF_MAX, SIZE_MAX)
- && (buf = (char *) xmalloc (st.st_size),
+ && (buf = xmalloc (st.st_size),
fread (buf, 1, st.st_size, fp) == st.st_size))
{
*size = st.st_size;
{":background", IMAGE_STRING_OR_NIL_VALUE, 0}
};
+#ifdef HAVE_NTGUI
+static int init_png_functions (void);
+#else
+#define init_png_functions NULL
+#endif
+
/* Structure describing the image type `png'. */
static struct image_type png_type =
png_image_p,
png_load,
x_clear_image,
+ init_png_functions,
NULL
};
#endif /* libpng version >= 1.5 */
static int
-init_png_functions (Lisp_Object libraries)
+init_png_functions (void)
{
HMODULE library;
- if (!(library = w32_delayed_load (libraries, Qpng)))
+ if (!(library = w32_delayed_load (Qpng)))
return 0;
LOAD_IMGLIB_FN (library, png_get_io_ptr);
#endif /* HAVE_NTGUI */
+/* Possibly inefficient/inexact substitutes for _setjmp and _longjmp.
+ Do not use sys_setjmp, as PNG supports only jmp_buf. The _longjmp
+ substitute may munge the signal mask, but that should be OK here.
+ MinGW (MS-Windows) uses _setjmp and defines setjmp to _setjmp in
+ the system header setjmp.h; don't mess up that. */
+#ifndef HAVE__SETJMP
+# define _setjmp(j) setjmp (j)
+# define _longjmp longjmp
+#endif
#if (PNG_LIBPNG_VER < 10500)
-#define PNG_LONGJMP(ptr) (longjmp ((ptr)->jmpbuf, 1))
+#define PNG_LONGJMP(ptr) (_longjmp ((ptr)->jmpbuf, 1))
#define PNG_JMPBUF(ptr) ((ptr)->jmpbuf)
#else
/* In libpng version 1.5, the jmpbuf member is hidden. (Bug#7908) */
#define PNG_LONGJMP(ptr) (fn_png_longjmp ((ptr), 1))
#define PNG_JMPBUF(ptr) \
- (*fn_png_set_longjmp_fn ((ptr), longjmp, sizeof (jmp_buf)))
+ (*fn_png_set_longjmp_fn ((ptr), _longjmp, sizeof (jmp_buf)))
#endif
/* Error and warning handlers installed when the PNG library
is initialized. */
-static void my_png_error (png_struct *, const char *) NO_RETURN;
-static void
+static _Noreturn void
my_png_error (png_struct *png_ptr, const char *msg)
{
- xassert (png_ptr != NULL);
+ eassert (png_ptr != NULL);
/* Avoid compiler warning about deprecated direct access to
png_ptr's fields in libpng versions 1.4.x. */
image_error ("PNG error: %s", build_string (msg), Qnil);
static void
my_png_warning (png_struct *png_ptr, const char *msg)
{
- xassert (png_ptr != NULL);
+ eassert (png_ptr != NULL);
image_error ("PNG warning: %s", build_string (msg), Qnil);
}
/* Load PNG image IMG for use on frame F. Value is non-zero if
successful. */
+struct png_load_context
+{
+ /* These are members so that longjmp doesn't munge local variables. */
+ png_struct *png_ptr;
+ png_info *info_ptr;
+ png_info *end_info;
+ FILE *fp;
+ png_byte *pixels;
+ png_byte **rows;
+};
+
static int
-png_load (struct frame *f, struct image *img)
+png_load_body (struct frame *f, struct image *img, struct png_load_context *c)
{
Lisp_Object file, specified_file;
Lisp_Object specified_data;
int x, y;
ptrdiff_t i;
XImagePtr ximg, mask_img = NULL;
- png_struct *png_ptr = NULL;
+ png_struct *png_ptr;
png_info *info_ptr = NULL, *end_info = NULL;
- FILE *volatile fp = NULL;
+ FILE *fp = NULL;
png_byte sig[8];
- png_byte * volatile pixels = NULL;
- png_byte ** volatile rows = NULL;
+ png_byte *pixels = NULL;
+ png_byte **rows = NULL;
png_uint_32 width, height;
int bit_depth, color_type, interlace_type;
png_byte channels;
png_ptr = fn_png_create_read_struct (PNG_LIBPNG_VER_STRING,
NULL, my_png_error,
my_png_warning);
- if (!png_ptr)
+ if (png_ptr)
{
- if (fp) fclose (fp);
- return 0;
+ info_ptr = fn_png_create_info_struct (png_ptr);
+ end_info = fn_png_create_info_struct (png_ptr);
}
- info_ptr = fn_png_create_info_struct (png_ptr);
- if (!info_ptr)
+ c->png_ptr = png_ptr;
+ c->info_ptr = info_ptr;
+ c->end_info = end_info;
+ c->fp = fp;
+ c->pixels = pixels;
+ c->rows = rows;
+
+ if (! (info_ptr && end_info))
{
- fn_png_destroy_read_struct (&png_ptr, NULL, NULL);
- if (fp) fclose (fp);
- return 0;
+ fn_png_destroy_read_struct (&c->png_ptr, &c->info_ptr, &c->end_info);
+ png_ptr = 0;
}
-
- end_info = fn_png_create_info_struct (png_ptr);
- if (!end_info)
+ if (! png_ptr)
{
- fn_png_destroy_read_struct (&png_ptr, &info_ptr, NULL);
if (fp) fclose (fp);
return 0;
}
/* Set error jump-back. We come back here when the PNG library
detects an error. */
- if (setjmp (PNG_JMPBUF (png_ptr)))
+ if (_setjmp (PNG_JMPBUF (png_ptr)))
{
error:
- if (png_ptr)
- fn_png_destroy_read_struct (&png_ptr, &info_ptr, &end_info);
- xfree (pixels);
- xfree (rows);
- if (fp) fclose (fp);
+ if (c->png_ptr)
+ fn_png_destroy_read_struct (&c->png_ptr, &c->info_ptr, &c->end_info);
+ xfree (c->pixels);
+ xfree (c->rows);
+ if (c->fp)
+ fclose (c->fp);
return 0;
}
+ /* Silence a bogus diagnostic; see GCC bug 54561. */
+ IF_LINT (fp = c->fp);
+
/* Read image info. */
if (!NILP (specified_data))
fn_png_set_read_fn (png_ptr, (void *) &tbr, png_read_from_memory);
images with alpha channel, i.e. RGBA. If conversions above were
sufficient we should only have 3 or 4 channels here. */
channels = fn_png_get_channels (png_ptr, info_ptr);
- xassert (channels == 3 || channels == 4);
+ eassert (channels == 3 || channels == 4);
/* Number of bytes needed for one row of the image. */
row_bytes = fn_png_get_rowbytes (png_ptr, info_ptr);
if (min (PTRDIFF_MAX, SIZE_MAX) / sizeof *rows < height
|| min (PTRDIFF_MAX, SIZE_MAX) / sizeof *pixels / height < row_bytes)
memory_full (SIZE_MAX);
- pixels = (png_byte *) xmalloc (sizeof *pixels * row_bytes * height);
- rows = (png_byte **) xmalloc (height * sizeof *rows);
+ c->pixels = pixels = xmalloc (sizeof *pixels * row_bytes * height);
+ c->rows = rows = xmalloc (height * sizeof *rows);
for (i = 0; i < height; ++i)
rows[i] = pixels + i * row_bytes;
if (fp)
{
fclose (fp);
- fp = NULL;
+ c->fp = NULL;
}
/* Create an image and pixmap serving as mask if the PNG image
#endif /* COLOR_TABLE_SUPPORT */
/* Clean up. */
- fn_png_destroy_read_struct (&png_ptr, &info_ptr, &end_info);
+ fn_png_destroy_read_struct (&c->png_ptr, &c->info_ptr, &c->end_info);
xfree (rows);
xfree (pixels);
return 1;
}
+static int
+png_load (struct frame *f, struct image *img)
+{
+ struct png_load_context c;
+ return png_load_body (f, img, &c);
+}
+
#else /* HAVE_PNG */
#ifdef HAVE_NS
{":background", IMAGE_STRING_OR_NIL_VALUE, 0}
};
+#ifdef HAVE_NTGUI
+static int init_jpeg_functions (void);
+#else
+#define init_jpeg_functions NULL
+#endif
+
/* Structure describing the image type `jpeg'. */
static struct image_type jpeg_type =
jpeg_image_p,
jpeg_load,
x_clear_image,
+ init_jpeg_functions,
NULL
};
DEF_IMGLIB_FN (boolean, jpeg_resync_to_restart, (j_decompress_ptr, int));
static int
-init_jpeg_functions (Lisp_Object libraries)
+init_jpeg_functions (void)
{
HMODULE library;
- if (!(library = w32_delayed_load (libraries, Qjpeg)))
+ if (!(library = w32_delayed_load (Qjpeg)))
return 0;
LOAD_IMGLIB_FN (library, jpeg_finish_decompress);
struct my_jpeg_error_mgr
{
struct jpeg_error_mgr pub;
- jmp_buf setjmp_buffer;
+ sys_jmp_buf setjmp_buffer;
+
+ /* The remaining members are so that longjmp doesn't munge local
+ variables. */
+ struct jpeg_decompress_struct cinfo;
+ enum
+ {
+ MY_JPEG_ERROR_EXIT,
+ MY_JPEG_INVALID_IMAGE_SIZE,
+ MY_JPEG_CANNOT_CREATE_X
+ } failure_code;
+#ifdef lint
+ FILE *fp;
+#endif
};
-static void my_error_exit (j_common_ptr) NO_RETURN;
-static void
+static _Noreturn void
my_error_exit (j_common_ptr cinfo)
{
struct my_jpeg_error_mgr *mgr = (struct my_jpeg_error_mgr *) cinfo->err;
- longjmp (mgr->setjmp_buffer, 1);
+ mgr->failure_code = MY_JPEG_ERROR_EXIT;
+ sys_longjmp (mgr->setjmp_buffer, 1);
}
reading the image. */
static void
-jpeg_memory_src (j_decompress_ptr cinfo, JOCTET *data, unsigned int len)
+jpeg_memory_src (j_decompress_ptr cinfo, JOCTET *data, ptrdiff_t len)
{
struct jpeg_source_mgr *src;
from the JPEG lib. */
static int
-jpeg_load (struct frame *f, struct image *img)
+jpeg_load_body (struct frame *f, struct image *img,
+ struct my_jpeg_error_mgr *mgr)
{
- struct jpeg_decompress_struct cinfo;
- struct my_jpeg_error_mgr mgr;
Lisp_Object file, specified_file;
Lisp_Object specified_data;
- FILE * volatile fp = NULL;
+ FILE *fp = NULL;
JSAMPARRAY buffer;
int row_stride, x, y;
XImagePtr ximg = NULL;
- int rc;
unsigned long *colors;
int width, height;
return 0;
}
+ IF_LINT (mgr->fp = fp);
+
/* Customize libjpeg's error handling to call my_error_exit when an
error is detected. This function will perform a longjmp. */
- cinfo.err = fn_jpeg_std_error (&mgr.pub);
- mgr.pub.error_exit = my_error_exit;
-
- if ((rc = setjmp (mgr.setjmp_buffer)) != 0)
+ mgr->cinfo.err = fn_jpeg_std_error (&mgr->pub);
+ mgr->pub.error_exit = my_error_exit;
+ if (sys_setjmp (mgr->setjmp_buffer))
{
- if (rc == 1)
+ switch (mgr->failure_code)
{
- /* Called from my_error_exit. Display a JPEG error. */
- char buf[JMSG_LENGTH_MAX];
- cinfo.err->format_message ((j_common_ptr) &cinfo, buf);
- image_error ("Error reading JPEG image `%s': %s", img->spec,
- build_string (buf));
+ case MY_JPEG_ERROR_EXIT:
+ {
+ char buf[JMSG_LENGTH_MAX];
+ mgr->cinfo.err->format_message ((j_common_ptr) &mgr->cinfo, buf);
+ image_error ("Error reading JPEG image `%s': %s", img->spec,
+ build_string (buf));
+ break;
+ }
+
+ case MY_JPEG_INVALID_IMAGE_SIZE:
+ image_error ("Invalid image size (see `max-image-size')", Qnil, Qnil);
+ break;
+
+ case MY_JPEG_CANNOT_CREATE_X:
+ break;
}
/* Close the input file and destroy the JPEG object. */
if (fp)
- fclose ((FILE *) fp);
- fn_jpeg_destroy_decompress (&cinfo);
+ fclose (fp);
+ fn_jpeg_destroy_decompress (&mgr->cinfo);
/* If we already have an XImage, free that. */
x_destroy_x_image (ximg);
return 0;
}
+ /* Silence a bogus diagnostic; see GCC bug 54561. */
+ IF_LINT (fp = mgr->fp);
+
/* Create the JPEG decompression object. Let it read from fp.
Read the JPEG image header. */
- fn_jpeg_CreateDecompress (&cinfo, JPEG_LIB_VERSION, sizeof (cinfo));
+ fn_jpeg_CreateDecompress (&mgr->cinfo, JPEG_LIB_VERSION, sizeof *&mgr->cinfo);
if (NILP (specified_data))
- jpeg_file_src (&cinfo, (FILE *) fp);
+ jpeg_file_src (&mgr->cinfo, fp);
else
- jpeg_memory_src (&cinfo, SDATA (specified_data),
+ jpeg_memory_src (&mgr->cinfo, SDATA (specified_data),
SBYTES (specified_data));
- fn_jpeg_read_header (&cinfo, 1);
+ fn_jpeg_read_header (&mgr->cinfo, 1);
/* Customize decompression so that color quantization will be used.
Start decompression. */
- cinfo.quantize_colors = 1;
- fn_jpeg_start_decompress (&cinfo);
- width = img->width = cinfo.output_width;
- height = img->height = cinfo.output_height;
+ mgr->cinfo.quantize_colors = 1;
+ fn_jpeg_start_decompress (&mgr->cinfo);
+ width = img->width = mgr->cinfo.output_width;
+ height = img->height = mgr->cinfo.output_height;
if (!check_image_size (f, width, height))
{
- image_error ("Invalid image size (see `max-image-size')", Qnil, Qnil);
- longjmp (mgr.setjmp_buffer, 2);
+ mgr->failure_code = MY_JPEG_INVALID_IMAGE_SIZE;
+ sys_longjmp (mgr->setjmp_buffer, 1);
}
/* Create X image and pixmap. */
if (!x_create_x_image_and_pixmap (f, width, height, 0, &ximg, &img->pixmap))
- longjmp (mgr.setjmp_buffer, 2);
+ {
+ mgr->failure_code = MY_JPEG_CANNOT_CREATE_X;
+ sys_longjmp (mgr->setjmp_buffer, 1);
+ }
/* Allocate colors. When color quantization is used,
- cinfo.actual_number_of_colors has been set with the number of
- colors generated, and cinfo.colormap is a two-dimensional array
- of color indices in the range 0..cinfo.actual_number_of_colors.
+ mgr->cinfo.actual_number_of_colors has been set with the number of
+ colors generated, and mgr->cinfo.colormap is a two-dimensional array
+ of color indices in the range 0..mgr->cinfo.actual_number_of_colors.
No more than 255 colors will be generated. */
{
int i, ir, ig, ib;
- if (cinfo.out_color_components > 2)
+ if (mgr->cinfo.out_color_components > 2)
ir = 0, ig = 1, ib = 2;
- else if (cinfo.out_color_components > 1)
+ else if (mgr->cinfo.out_color_components > 1)
ir = 0, ig = 1, ib = 0;
else
ir = 0, ig = 0, ib = 0;
a default color, and we don't have to care about which colors
can be freed safely, and which can't. */
init_color_table ();
- colors = (unsigned long *) alloca (cinfo.actual_number_of_colors
- * sizeof *colors);
+ colors = alloca (mgr->cinfo.actual_number_of_colors * sizeof *colors);
- for (i = 0; i < cinfo.actual_number_of_colors; ++i)
+ for (i = 0; i < mgr->cinfo.actual_number_of_colors; ++i)
{
/* Multiply RGB values with 255 because X expects RGB values
in the range 0..0xffff. */
- int r = cinfo.colormap[ir][i] << 8;
- int g = cinfo.colormap[ig][i] << 8;
- int b = cinfo.colormap[ib][i] << 8;
+ int r = mgr->cinfo.colormap[ir][i] << 8;
+ int g = mgr->cinfo.colormap[ig][i] << 8;
+ int b = mgr->cinfo.colormap[ib][i] << 8;
colors[i] = lookup_rgb_color (f, r, g, b);
}
}
/* Read pixels. */
- row_stride = width * cinfo.output_components;
- buffer = cinfo.mem->alloc_sarray ((j_common_ptr) &cinfo, JPOOL_IMAGE,
- row_stride, 1);
+ row_stride = width * mgr->cinfo.output_components;
+ buffer = mgr->cinfo.mem->alloc_sarray ((j_common_ptr) &mgr->cinfo,
+ JPOOL_IMAGE, row_stride, 1);
for (y = 0; y < height; ++y)
{
- fn_jpeg_read_scanlines (&cinfo, buffer, 1);
- for (x = 0; x < cinfo.output_width; ++x)
+ fn_jpeg_read_scanlines (&mgr->cinfo, buffer, 1);
+ for (x = 0; x < mgr->cinfo.output_width; ++x)
XPutPixel (ximg, x, y, colors[buffer[0][x]]);
}
/* Clean up. */
- fn_jpeg_finish_decompress (&cinfo);
- fn_jpeg_destroy_decompress (&cinfo);
+ fn_jpeg_finish_decompress (&mgr->cinfo);
+ fn_jpeg_destroy_decompress (&mgr->cinfo);
if (fp)
- fclose ((FILE *) fp);
+ fclose (fp);
/* Maybe fill in the background field while we have ximg handy. */
if (NILP (image_spec_value (img->spec, QCbackground, NULL)))
return 1;
}
+static int
+jpeg_load (struct frame *f, struct image *img)
+{
+ struct my_jpeg_error_mgr mgr;
+ return jpeg_load_body (f, img, &mgr);
+}
+
#else /* HAVE_JPEG */
#ifdef HAVE_NS
{":index", IMAGE_NON_NEGATIVE_INTEGER_VALUE, 0}
};
+#ifdef HAVE_NTGUI
+static int init_tiff_functions (void);
+#else
+#define init_tiff_functions NULL
+#endif
+
/* Structure describing the image type `tiff'. */
static struct image_type tiff_type =
tiff_image_p,
tiff_load,
x_clear_image,
+ init_tiff_functions,
NULL
};
DEF_IMGLIB_FN (int, TIFFSetDirectory, (TIFF *, tdir_t));
static int
-init_tiff_functions (Lisp_Object libraries)
+init_tiff_functions (void)
{
HMODULE library;
- if (!(library = w32_delayed_load (libraries, Qtiff)))
+ if (!(library = w32_delayed_load (Qtiff)))
return 0;
LOAD_IMGLIB_FN (library, TIFFSetErrorHandler);
return 0;
}
- buf = (uint32 *) xmalloc (sizeof *buf * width * height);
+ buf = xmalloc (sizeof *buf * width * height);
rc = fn_TIFFReadRGBAImage (tiff, width, height, buf, 0);
{":background", IMAGE_STRING_OR_NIL_VALUE, 0}
};
+#ifdef HAVE_NTGUI
+static int init_gif_functions (void);
+#else
+#define init_gif_functions NULL
+#endif
+
/* Structure describing the image type `gif'. */
static struct image_type gif_type =
gif_image_p,
gif_load,
gif_clear_image,
+ init_gif_functions,
NULL
};
DEF_IMGLIB_FN (GifFileType *, DGifOpenFileName, (const char *));
static int
-init_gif_functions (Lisp_Object libraries)
+init_gif_functions (void)
{
HMODULE library;
- if (!(library = w32_delayed_load (libraries, Qgif)))
+ if (!(library = w32_delayed_load (Qgif)))
return 0;
LOAD_IMGLIB_FN (library, DGifCloseFile);
{":crop", IMAGE_DONT_CHECK_VALUE_TYPE, 0}
};
+#ifdef HAVE_NTGUI
+static int init_imagemagick_functions (void);
+#else
+#define init_imagemagick_functions NULL
+#endif
+
/* Structure describing the image type for any image handled via
ImageMagick. */
imagemagick_image_p,
imagemagick_load,
imagemagick_clear_image,
+ init_imagemagick_functions,
NULL
};
description = MagickGetException (wand, &severity);
image_error ("ImageMagick error: %s",
- make_string (description, strlen (description)),
+ build_string (description),
Qnil);
description = (char *) MagickRelinquishMemory (description);
}
unsigned char *contents, unsigned int size,
char *filename)
{
- size_t width;
- size_t height;
-
+ size_t width, height;
MagickBooleanType status;
-
XImagePtr ximg;
- int x;
- int y;
-
- MagickWand *image_wand;
- MagickWand *ping_wand;
+ int x, y;
+ MagickWand *image_wand;
+ MagickWand *ping_wand;
PixelIterator *iterator;
- PixelWand **pixels;
+ PixelWand **pixels, *bg_wand = NULL;
MagickPixelPacket pixel;
Lisp_Object image;
Lisp_Object value;
EMACS_INT ino;
int desired_width, desired_height;
double rotation;
- EMACS_INT imagemagick_rendermethod;
int pixelwidth;
- ImageInfo *image_info;
- ExceptionInfo *exception;
- Image * im_image;
-
/* Handle image index for image types who can contain more than one image.
Interface :index is same as for GIF. First we "ping" the image to see how
ping_wand = NewMagickWand ();
/* MagickSetResolution (ping_wand, 2, 2); (Bug#10112) */
- if (filename != NULL)
- {
- status = MagickPingImage (ping_wand, filename);
- }
- else
- {
- status = MagickPingImageBlob (ping_wand, contents, size);
- }
+ status = filename
+ ? MagickPingImage (ping_wand, filename)
+ : MagickPingImageBlob (ping_wand, contents, size);
if (status == MagickFalse)
{
return 0;
}
- if (! (0 <= ino && ino < MagickGetNumberImages (ping_wand)))
+ if (ino < 0 || ino >= MagickGetNumberImages (ping_wand))
{
image_error ("Invalid image number `%s' in image `%s'",
image, img->spec);
DestroyMagickWand (ping_wand);
/* Now we know how many images are inside the file. If it's not a
- bundle, the number is one. */
+ bundle, the number is one. Load the image data. */
- if (filename != NULL)
- {
- image_info = CloneImageInfo ((ImageInfo *) NULL);
- (void) strcpy (image_info->filename, filename);
- image_info->number_scenes = 1;
- image_info->scene = ino;
- exception = AcquireExceptionInfo ();
-
- im_image = ReadImage (image_info, exception);
- DestroyExceptionInfo (exception);
+ image_wand = NewMagickWand ();
- if (im_image == NULL)
- goto imagemagick_no_wand;
- image_wand = NewMagickWandFromImage (im_image);
- DestroyImage (im_image);
- }
- else
+ if ((filename
+ ? MagickReadImage (image_wand, filename)
+ : MagickReadImageBlob (image_wand, contents, size))
+ == MagickFalse)
{
- image_wand = NewMagickWand ();
- if (MagickReadImageBlob (image_wand, contents, size) == MagickFalse)
- {
- imagemagick_error (image_wand);
- goto imagemagick_error;
- }
+ imagemagick_error (image_wand);
+ goto imagemagick_error;
}
+ /* Retrieve the frame's background color, for use later. */
+ {
+ XColor bgcolor;
+ Lisp_Object specified_bg;
+
+ specified_bg = image_spec_value (img->spec, QCbackground, NULL);
+ if (!STRINGP (specified_bg)
+ || !x_defined_color (f, SSDATA (specified_bg), &bgcolor, 0))
+ {
+#ifndef HAVE_NS
+ bgcolor.pixel = FRAME_BACKGROUND_PIXEL (f);
+ x_query_color (f, &bgcolor);
+#else
+ ns_query_color (FRAME_BACKGROUND_COLOR (f), &bgcolor, 1);
+#endif
+ }
+
+ bg_wand = NewPixelWand ();
+ PixelSetRed (bg_wand, (double) bgcolor.red / 65535);
+ PixelSetGreen (bg_wand, (double) bgcolor.green / 65535);
+ PixelSetBlue (bg_wand, (double) bgcolor.blue / 65535);
+ }
+
/* If width and/or height is set in the display spec assume we want
to scale to those values. If either h or w is unspecified, the
unspecified should be calculated from the specified to preserve
aspect ratio. */
-
value = image_spec_value (img->spec, QCwidth, NULL);
desired_width = (INTEGERP (value) ? XFASTINT (value) : -1);
value = image_spec_value (img->spec, QCheight, NULL);
value = image_spec_value (img->spec, QCrotation, NULL);
if (FLOATP (value))
{
- PixelWand* background = NewPixelWand ();
- PixelSetColor (background, "#ffffff");/*TODO remove hardcode*/
-
rotation = extract_float (value);
-
- status = MagickRotateImage (image_wand, background, rotation);
- DestroyPixelWand (background);
+ status = MagickRotateImage (image_wand, bg_wand, rotation);
if (status == MagickFalse)
{
image_error ("Imagemagick image rotate failed", Qnil, Qnil);
height = MagickGetImageHeight (image_wand);
width = MagickGetImageWidth (image_wand);
+ /* Set the canvas background color to the frame or specified
+ background, and flatten the image. Note: as of ImageMagick
+ 6.6.0, SVG image transparency is not handled properly
+ (e.g. etc/images/splash.svg shows a white background always). */
+ {
+ MagickWand *new_wand;
+ MagickSetImageBackgroundColor (image_wand, bg_wand);
+#ifdef HAVE_MAGICKMERGEIMAGELAYERS
+ new_wand = MagickMergeImageLayers (image_wand, MergeLayer);
+#else
+ new_wand = MagickFlattenImages (image_wand);
+#endif
+ DestroyMagickWand (image_wand);
+ image_wand = new_wand;
+ }
+
if (! (width <= INT_MAX && height <= INT_MAX
&& check_image_size (f, width, height)))
{
went ok. */
init_color_table ();
- imagemagick_rendermethod = (INTEGERP (Vimagemagick_render_type)
- ? XINT (Vimagemagick_render_type) : 0);
- if (imagemagick_rendermethod == 0)
+
+#ifdef HAVE_MAGICKEXPORTIMAGEPIXELS
+ if (imagemagick_render_type != 0)
+ {
+ /* Magicexportimage is normally faster than pixelpushing. This
+ method is also well tested. Some aspects of this method are
+ ad-hoc and needs to be more researched. */
+ int imagedepth = 24; /*MagickGetImageDepth(image_wand);*/
+ const char *exportdepth = imagedepth <= 8 ? "I" : "BGRP"; /*"RGBP";*/
+ /* Try to create a x pixmap to hold the imagemagick pixmap. */
+ if (!x_create_x_image_and_pixmap (f, width, height, imagedepth,
+ &ximg, &img->pixmap))
+ {
+#ifdef COLOR_TABLE_SUPPORT
+ free_color_table ();
+#endif
+ image_error ("Imagemagick X bitmap allocation failure", Qnil, Qnil);
+ goto imagemagick_error;
+ }
+
+ /* Oddly, the below code doesn't seem to work:*/
+ /* switch(ximg->bitmap_unit){ */
+ /* case 8: */
+ /* pixelwidth=CharPixel; */
+ /* break; */
+ /* case 16: */
+ /* pixelwidth=ShortPixel; */
+ /* break; */
+ /* case 32: */
+ /* pixelwidth=LongPixel; */
+ /* break; */
+ /* } */
+ /*
+ Here im just guessing the format of the bitmap.
+ happens to work fine for:
+ - bw djvu images
+ on rgb display.
+ seems about 3 times as fast as pixel pushing(not carefully measured)
+ */
+ pixelwidth = CharPixel; /*??? TODO figure out*/
+ MagickExportImagePixels (image_wand, 0, 0, width, height,
+ exportdepth, pixelwidth, ximg->data);
+ }
+ else
+#endif /* HAVE_MAGICKEXPORTIMAGEPIXELS */
{
size_t image_height;
DestroyPixelIterator (iterator);
}
- if (imagemagick_rendermethod == 1)
- {
- /* Magicexportimage is normally faster than pixelpushing. This
- method is also well tested. Some aspects of this method are
- ad-hoc and needs to be more researched. */
- int imagedepth = 24;/*MagickGetImageDepth(image_wand);*/
- const char *exportdepth = imagedepth <= 8 ? "I" : "BGRP";/*"RGBP";*/
- /* Try to create a x pixmap to hold the imagemagick pixmap. */
- if (!x_create_x_image_and_pixmap (f, width, height, imagedepth,
- &ximg, &img->pixmap))
- {
-#ifdef COLOR_TABLE_SUPPORT
- free_color_table ();
-#endif
- image_error ("Imagemagick X bitmap allocation failure", Qnil, Qnil);
- goto imagemagick_error;
- }
-
-
- /* Oddly, the below code doesn't seem to work:*/
- /* switch(ximg->bitmap_unit){ */
- /* case 8: */
- /* pixelwidth=CharPixel; */
- /* break; */
- /* case 16: */
- /* pixelwidth=ShortPixel; */
- /* break; */
- /* case 32: */
- /* pixelwidth=LongPixel; */
- /* break; */
- /* } */
- /*
- Here im just guessing the format of the bitmap.
- happens to work fine for:
- - bw djvu images
- on rgb display.
- seems about 3 times as fast as pixel pushing(not carefully measured)
- */
- pixelwidth = CharPixel;/*??? TODO figure out*/
-#ifdef HAVE_MAGICKEXPORTIMAGEPIXELS
- MagickExportImagePixels (image_wand,
- 0, 0,
- width, height,
- exportdepth,
- pixelwidth,
- /*&(img->pixmap));*/
- ximg->data);
-#else
- image_error ("You don't have MagickExportImagePixels, upgrade ImageMagick!",
- Qnil, Qnil);
-#endif
- }
-
-
#ifdef COLOR_TABLE_SUPPORT
/* Remember colors allocated for this image. */
img->colors = colors_in_color_table (&img->ncolors);
free_color_table ();
#endif /* COLOR_TABLE_SUPPORT */
-
img->width = width;
img->height = height;
x_put_x_image (f, ximg, img->pixmap, width, height);
x_destroy_x_image (ximg);
-
/* Final cleanup. image_wand should be the only resource left. */
DestroyMagickWand (image_wand);
+ if (bg_wand) DestroyPixelWand (bg_wand);
+
/* `MagickWandTerminus' terminates the imagemagick environment. */
MagickWandTerminus ();
imagemagick_error:
DestroyMagickWand (image_wand);
- imagemagick_no_wand:
+ if (bg_wand) DestroyPixelWand (bg_wand);
+
MagickWandTerminus ();
/* TODO more cleanup. */
image_error ("Error parsing IMAGEMAGICK image `%s'", img->spec, Qnil);
Each entry in this list is a symbol named after an ImageMagick format
tag. See the ImageMagick manual for a list of ImageMagick formats and
their descriptions (http://www.imagemagick.org/script/formats.php).
+You can also try the shell command: `identify -list format'.
Note that ImageMagick recognizes many file-types that Emacs does not
-recognize as images, such as C. See `imagemagick-types-inhibit'. */)
+recognize as images, such as C. See `imagemagick-types-enable'
+and `imagemagick-types-inhibit'. */)
(void)
{
Lisp_Object typelist = Qnil;
size_t numf = 0;
ExceptionInfo ex;
- char **imtypes = GetMagickList ("*", &numf, &ex);
+ char **imtypes;
size_t i;
Lisp_Object Qimagemagicktype;
+
+ GetExceptionInfo(&ex);
+ imtypes = GetMagickList ("*", &numf, &ex);
+ DestroyExceptionInfo(&ex);
+
for (i = 0; i < numf; i++)
{
Qimagemagicktype = intern (imtypes[i]);
{":background", IMAGE_STRING_OR_NIL_VALUE, 0}
};
+#ifdef HAVE_NTGUI
+static int init_svg_functions (void);
+#else
+#define init_svg_functions NULL
+#endif
+
/* Structure describing the image type `svg'. Its the same type of
structure defined for all image formats, handled by emacs image
functions. See struct image_type in dispextern.h. */
static struct image_type svg_type =
{
- /* An identifier showing that this is an image structure for the SVG format. */
&Qsvg,
- /* Handle to a function that can be used to identify a SVG file. */
svg_image_p,
- /* Handle to function used to load a SVG file. */
svg_load,
- /* Handle to function to free sresources for SVG. */
x_clear_image,
- /* An internal field to link to the next image type in a list of
- image types, will be filled in when registering the format. */
+ init_svg_functions,
NULL
};
Lisp_Object Qgdk_pixbuf, Qglib, Qgobject;
static int
-init_svg_functions (Lisp_Object libraries)
+init_svg_functions (void)
{
HMODULE library, gdklib, glib, gobject;
- if (!(glib = w32_delayed_load (libraries, Qglib))
- || !(gobject = w32_delayed_load (libraries, Qgobject))
- || !(gdklib = w32_delayed_load (libraries, Qgdk_pixbuf))
- || !(library = w32_delayed_load (libraries, Qsvg)))
+ if (!(glib = w32_delayed_load (Qglib))
+ || !(gobject = w32_delayed_load (Qgobject))
+ || !(gdklib = w32_delayed_load (Qgdk_pixbuf))
+ || !(library = w32_delayed_load (Qsvg)))
return 0;
LOAD_IMGLIB_FN (library, rsvg_handle_new);
gs_image_p,
gs_load,
gs_clear_image,
+ NULL,
NULL
};
if (ASIZE (tem) != 4)
return 0;
for (i = 0; i < 4; ++i)
- if (!INTEGERP (XVECTOR (tem)->contents[i]))
+ if (!INTEGERP (AREF (tem, i)))
return 0;
}
else
img->height = in_height;
/* Create the pixmap. */
- xassert (img->pixmap == NO_PIXMAP);
+ eassert (img->pixmap == NO_PIXMAP);
if (x_check_image_size (0, img->width, img->height))
{
/* Only W32 version did BLOCK_INPUT here. ++kfs */
- BLOCK_INPUT;
+ block_input ();
img->pixmap = XCreatePixmap (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f),
img->width, img->height,
DefaultDepthOfScreen (FRAME_X_SCREEN (f)));
- UNBLOCK_INPUT;
+ unblock_input ();
}
if (!img->pixmap)
don't either. Let the Lisp loader use `unwind-protect' instead. */
printnum1 = FRAME_X_WINDOW (f);
printnum2 = img->pixmap;
- sprintf (buffer, "%"pMu" %"pMu, printnum1, printnum2);
- window_and_pixmap_id = build_string (buffer);
+ window_and_pixmap_id
+ = make_formatted_string (buffer, "%"pMu" %"pMu, printnum1, printnum2);
printnum1 = FRAME_FOREGROUND_PIXEL (f);
printnum2 = FRAME_BACKGROUND_PIXEL (f);
- sprintf (buffer, "%"pMu" %"pMu, printnum1, printnum2);
- pixel_colors = build_string (buffer);
+ pixel_colors
+ = make_formatted_string (buffer, "%"pMu" %"pMu, printnum1, printnum2);
XSETFRAME (frame, f);
loader = image_spec_value (img->spec, QCloader, NULL);
/* Kill the GS process. We should have found PIXMAP in the image
cache and its image should contain a process object. */
img = c->images[i];
- xassert (PROCESSP (img->lisp_data));
+ eassert (PROCESSP (img->lisp_data));
Fkill_process (img->lisp_data, Qnil);
img->lisp_data = Qnil;
{
XImagePtr ximg;
- BLOCK_INPUT;
+ block_input ();
/* Try to get an XImage for img->pixmep. */
ximg = XGetImage (FRAME_X_DISPLAY (f), img->pixmap,
image_error ("Cannot get X image of `%s'; colors will not be freed",
img->spec, Qnil);
- UNBLOCK_INPUT;
+ unblock_input ();
}
#endif /* HAVE_X_WINDOWS */
/* Now that we have the pixmap, compute mask and transform the
image if requested. */
- BLOCK_INPUT;
+ block_input ();
postprocess_image (f, img);
- UNBLOCK_INPUT;
+ unblock_input ();
}
#endif /* HAVE_GHOSTSCRIPT */
Tests
***********************************************************************/
-#if GLYPH_DEBUG
+#ifdef GLYPH_DEBUG
DEFUN ("imagep", Fimagep, Simagep, 1, 1, 0,
doc: /* Value is non-nil if SPEC is a valid image specification. */)
return make_number (id);
}
-#endif /* GLYPH_DEBUG != 0 */
+#endif /* GLYPH_DEBUG */
/***********************************************************************
Initialization
***********************************************************************/
-#ifdef HAVE_NTGUI
-/* Image types that rely on external libraries are loaded dynamically
- if the library is available. */
-#define CHECK_LIB_AVAILABLE(image_type, init_lib_fn, libraries) \
- define_image_type (image_type, init_lib_fn (libraries))
-#else
-#define CHECK_LIB_AVAILABLE(image_type, init_lib_fn, libraries) \
- define_image_type (image_type, 1)
-#endif /* HAVE_NTGUI */
-
-DEFUN ("init-image-library", Finit_image_library, Sinit_image_library, 2, 2, 0,
+DEFUN ("init-image-library", Finit_image_library, Sinit_image_library, 1, 1, 0,
doc: /* Initialize image library implementing image type TYPE.
Return non-nil if TYPE is a supported image type.
-Image types pbm and xbm are prebuilt; other types are loaded here.
-Libraries to load are specified in alist LIBRARIES (usually, the value
-of `dynamic-library-alist', which see). */)
- (Lisp_Object type, Lisp_Object libraries)
+If image libraries are loaded dynamically (currently only the case on
+MS-Windows), load the library for TYPE if it is not yet loaded, using
+the library file(s) specified by `dynamic-library-alist'. */)
+ (Lisp_Object type)
{
-#ifdef HAVE_NTGUI
- /* Don't try to reload the library. */
- Lisp_Object tested = Fassq (type, Vlibrary_cache);
- if (CONSP (tested))
- return XCDR (tested);
-#endif
+ return lookup_image_type (type) ? Qt : Qnil;
+}
+/* Look up image type TYPE, and return a pointer to its image_type
+ structure. Return 0 if TYPE is not a known image type. */
+
+static struct image_type *
+lookup_image_type (Lisp_Object type)
+{
/* Types pbm and xbm are built-in and always available. */
- if (EQ (type, Qpbm) || EQ (type, Qxbm))
- return Qt;
+ if (EQ (type, Qpbm))
+ return define_image_type (&pbm_type);
+
+ if (EQ (type, Qxbm))
+ return define_image_type (&xbm_type);
#if defined (HAVE_XPM) || defined (HAVE_NS)
if (EQ (type, Qxpm))
- return CHECK_LIB_AVAILABLE (&xpm_type, init_xpm_functions, libraries);
+ return define_image_type (&xpm_type);
#endif
#if defined (HAVE_JPEG) || defined (HAVE_NS)
if (EQ (type, Qjpeg))
- return CHECK_LIB_AVAILABLE (&jpeg_type, init_jpeg_functions, libraries);
+ return define_image_type (&jpeg_type);
#endif
#if defined (HAVE_TIFF) || defined (HAVE_NS)
if (EQ (type, Qtiff))
- return CHECK_LIB_AVAILABLE (&tiff_type, init_tiff_functions, libraries);
+ return define_image_type (&tiff_type);
#endif
#if defined (HAVE_GIF) || defined (HAVE_NS)
if (EQ (type, Qgif))
- return CHECK_LIB_AVAILABLE (&gif_type, init_gif_functions, libraries);
+ return define_image_type (&gif_type);
#endif
#if defined (HAVE_PNG) || defined (HAVE_NS)
if (EQ (type, Qpng))
- return CHECK_LIB_AVAILABLE (&png_type, init_png_functions, libraries);
+ return define_image_type (&png_type);
#endif
#if defined (HAVE_RSVG)
if (EQ (type, Qsvg))
- return CHECK_LIB_AVAILABLE (&svg_type, init_svg_functions, libraries);
+ return define_image_type (&svg_type);
#endif
#if defined (HAVE_IMAGEMAGICK)
if (EQ (type, Qimagemagick))
- return CHECK_LIB_AVAILABLE (&imagemagick_type, init_imagemagick_functions,
- libraries);
+ return define_image_type (&imagemagick_type);
#endif
#ifdef HAVE_GHOSTSCRIPT
if (EQ (type, Qpostscript))
- return CHECK_LIB_AVAILABLE (&gs_type, init_gs_functions, libraries);
+ return define_image_type (&gs_type);
#endif
- /* If the type is not recognized, avoid testing it ever again. */
- CACHE_IMAGE_TYPE (type, Qnil);
- return Qnil;
+ return NULL;
}
void
non-numeric, there is no explicit limit on the size of images. */);
Vmax_image_size = make_float (MAX_IMAGE_SIZE);
- DEFSYM (Qpbm, "pbm");
- ADD_IMAGE_TYPE (Qpbm);
-
- DEFSYM (Qxbm, "xbm");
- ADD_IMAGE_TYPE (Qxbm);
-
- define_image_type (&xbm_type, 1);
- define_image_type (&pbm_type, 1);
-
DEFSYM (Qcount, "count");
DEFSYM (Qextension_data, "extension-data");
DEFSYM (Qdelay, "delay");
);
#endif
+ DEFSYM (Qpbm, "pbm");
+ ADD_IMAGE_TYPE (Qpbm);
+
+ DEFSYM (Qxbm, "xbm");
+ ADD_IMAGE_TYPE (Qxbm);
+
#if defined (HAVE_XPM) || defined (HAVE_NS)
DEFSYM (Qxpm, "xpm");
ADD_IMAGE_TYPE (Qxpm);
defsubr (&Simage_mask_p);
defsubr (&Simage_metadata);
-#if GLYPH_DEBUG
+#ifdef GLYPH_DEBUG
defsubr (&Simagep);
defsubr (&Slookup_image);
#endif
The function `clear-image-cache' disregards this variable. */);
Vimage_cache_eviction_delay = make_number (300);
#ifdef HAVE_IMAGEMAGICK
- DEFVAR_LISP ("imagemagick-render-type", Vimagemagick_render_type,
- doc: /* Choose between ImageMagick render methods. */);
+ DEFVAR_INT ("imagemagick-render-type", imagemagick_render_type,
+ doc: /* Integer indicating which ImageMagick rendering method to use.
+The options are:
+ 0 -- the default method (pixel pushing)
+ 1 -- a newer method ("MagickExportImagePixels") that may perform
+ better (speed etc) in some cases, but has not been as thoroughly
+ tested with Emacs as the default method. This method requires
+ ImageMagick version 6.4.6 (approximately) or later.
+*/);
+ /* MagickExportImagePixels is in 6.4.6-9, but not 6.4.4-10. */
+ imagemagick_render_type = 0;
#endif
}
-
-void
-init_image (void)
-{
-}