Lisp_Object Vx_bitmap_file_path;
+/* The symbol `postscript' identifying images of this type. */
+
+Lisp_Object Qpostscript;
static void x_disable_image (struct frame *, struct image *);
static void x_edge_detection (struct frame *, struct image *, Lisp_Object,
/* Keywords. */
-extern Lisp_Object QCwidth, QCheight, QCforeground, QCbackground, QCfile;
-extern Lisp_Object QCdata, QCtype;
-extern Lisp_Object Qcenter;
Lisp_Object QCascent, QCmargin, QCrelief, Qcount, Qextension_data;
Lisp_Object QCconversion, QCcolor_symbols, QCheuristic_mask;
-Lisp_Object QCindex, QCmatrix, QCcolor_adjustment, QCmask;
+Lisp_Object QCindex, QCmatrix, QCcolor_adjustment, QCmask, QCgeometry, QCcrop, QCrotation;
/* Other symbols. */
static Lisp_Object define_image_type (struct image_type *type, int loaded);
static struct image_type *lookup_image_type (Lisp_Object symbol);
-static void image_error (char *format, Lisp_Object, 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 *);
static int x_build_heuristic_mask (struct frame *, struct image *,
therefore simply displays a message. */
static void
-image_error (char *format, Lisp_Object arg1, Lisp_Object arg2)
+image_error (const char *format, Lisp_Object arg1, Lisp_Object arg2)
{
add_to_log (format, arg1, arg2);
}
struct image_keyword
{
/* Name of keyword. */
- char *name;
+ const char *name;
/* The type of value allowed. */
enum image_value_type type;
struct image_cache *c;
struct image *img;
unsigned hash;
- struct gcpro gcpro1;
EMACS_TIME now;
/* F must be a window-system frame, and SPEC must be a valid image
c = FRAME_IMAGE_CACHE (f);
- GCPRO1 (spec);
-
/* Look up SPEC in the hash table of the image cache. */
hash = sxhash (spec, 0);
img = search_image_cache (f, spec, hash);
/* If not found, create a new image and cache it. */
if (img == NULL)
{
- extern Lisp_Object Qpostscript;
-
BLOCK_INPUT;
img = make_image (spec, hash);
cache_image (f, img);
EMACS_GET_TIME (now);
img->timestamp = EMACS_SECS (now);
- UNGCPRO;
-
/* Value is the image id. */
return img->id;
}
x_find_image_file (Lisp_Object file)
{
Lisp_Object file_found, search_path;
- struct gcpro gcpro1, gcpro2;
int fd;
- file_found = Qnil;
/* TODO I think this should use something like image-load-path
instead. Unfortunately, that can contain non-string elements. */
search_path = Fcons (Fexpand_file_name (build_string ("images"),
Vdata_directory),
Vx_bitmap_file_path);
- GCPRO2 (file_found, search_path);
/* Try to find FILE in data-directory/images, then x-bitmap-file-path. */
fd = openp (search_path, file, Qnil, &file_found, Qnil);
close (fd);
}
- UNGCPRO;
return file_found;
}
}
static void
-convert_mono_to_color_image (f, img, foreground, background)
- struct frame *f;
- struct image *img;
- COLORREF foreground, background;
+convert_mono_to_color_image (struct frame *f, struct image *img,
+ COLORREF foreground, COLORREF background)
{
HDC hdc, old_img_dc, new_img_dc;
HGDIOBJ old_prev, new_prev;
Lisp_Object file;
unsigned char *contents;
int size;
- struct gcpro gcpro1;
file = x_find_image_file (file_name);
- GCPRO1 (file);
if (!STRINGP (file))
{
image_error ("Cannot find image file `%s'", file_name, Qnil);
- UNGCPRO;
return 0;
}
if (contents == NULL)
{
image_error ("Error loading XBM image `%s'", img->spec, Qnil);
- UNGCPRO;
return 0;
}
success_p = xbm_load_image (f, img, contents, contents + size);
- UNGCPRO;
}
else
{
CONSP (tail);
++i, tail = XCDR (tail))
{
- Lisp_Object name = XCAR (XCAR (tail));
- Lisp_Object color = XCDR (XCAR (tail));
- xpm_syms[i].name = (char *) alloca (SCHARS (name) + 1);
- strcpy (xpm_syms[i].name, SDATA (name));
- xpm_syms[i].value = (char *) alloca (SCHARS (color) + 1);
- strcpy (xpm_syms[i].value, SDATA (color));
+ Lisp_Object name;
+ Lisp_Object color;
+
+ if (!CONSP (XCAR (tail)))
+ {
+ xpm_syms[i].name = "";
+ xpm_syms[i].value = "";
+ continue;
+ }
+ name = XCAR (XCAR (tail));
+ color = XCDR (XCAR (tail));
+ if (STRINGP (name))
+ {
+ xpm_syms[i].name = (char *) alloca (SCHARS (name) + 1);
+ strcpy (xpm_syms[i].name, SDATA (name));
+ }
+ else
+ xpm_syms[i].name = "";
+ if (STRINGP (color))
+ {
+ xpm_syms[i].value = (char *) alloca (SCHARS (color) + 1);
+ strcpy (xpm_syms[i].value, SDATA (color));
+ }
+ else
+ xpm_syms[i].value = "";
}
}
if (!STRINGP (file))
{
image_error ("Cannot find image file `%s'", specified_file, Qnil);
+#ifdef ALLOC_XPM_COLORS
+ xpm_free_color_cache ();
+#endif
return 0;
}
else
{
Lisp_Object buffer = image_spec_value (img->spec, QCdata, NULL);
+ if (!STRINGP (buffer))
+ {
+ image_error ("Invalid image data `%s'", buffer, Qnil);
+#ifdef ALLOC_XPM_COLORS
+ xpm_free_color_cache ();
+#endif
+ return 0;
+ }
#ifdef HAVE_NTGUI
/* XpmCreatePixmapFromBuffer is not available in the Windows port
of libxpm. But XpmCreateImageFromBuffer almost does what we want. */
length of the corresponding token, respectively. */
static int
-xpm_scan (s, end, beg, len)
- const unsigned char **s, *end, **beg;
- int *len;
+xpm_scan (const unsigned char **s,
+ const unsigned char *end,
+ const unsigned char **beg,
+ int *len)
{
int c;
hash table is used. */
static Lisp_Object
-xpm_make_color_table_v (put_func, get_func)
- void (**put_func) (Lisp_Object, const unsigned char *, int, Lisp_Object);
- Lisp_Object (**get_func) (Lisp_Object, const unsigned char *, int);
+xpm_make_color_table_v (void (**put_func) (Lisp_Object,
+ const unsigned char *,
+ int,
+ Lisp_Object),
+ Lisp_Object (**get_func) (Lisp_Object,
+ const unsigned char *,
+ int))
{
*put_func = xpm_put_color_table_v;
*get_func = xpm_get_color_table_v;
}
static void
-xpm_put_color_table_v (color_table, chars_start, chars_len, color)
- Lisp_Object color_table;
- const unsigned char *chars_start;
- int chars_len;
- Lisp_Object color;
+xpm_put_color_table_v (Lisp_Object color_table,
+ const unsigned char *chars_start,
+ int chars_len,
+ Lisp_Object color)
{
XVECTOR (color_table)->contents[*chars_start] = color;
}
static Lisp_Object
-xpm_get_color_table_v (color_table, chars_start, chars_len)
- Lisp_Object color_table;
- const unsigned char *chars_start;
- int chars_len;
+xpm_get_color_table_v (Lisp_Object color_table,
+ const unsigned char *chars_start,
+ int chars_len)
{
return XVECTOR (color_table)->contents[*chars_start];
}
static Lisp_Object
-xpm_make_color_table_h (put_func, get_func)
- void (**put_func) (Lisp_Object, const unsigned char *, int, Lisp_Object);
- Lisp_Object (**get_func) (Lisp_Object, const unsigned char *, int);
+xpm_make_color_table_h (void (**put_func) (Lisp_Object,
+ const unsigned char *,
+ int,
+ Lisp_Object),
+ Lisp_Object (**get_func) (Lisp_Object,
+ const unsigned char *,
+ int))
{
*put_func = xpm_put_color_table_h;
*get_func = xpm_get_color_table_h;
}
static void
-xpm_put_color_table_h (color_table, chars_start, chars_len, color)
- Lisp_Object color_table;
- const unsigned char *chars_start;
- int chars_len;
- Lisp_Object color;
+xpm_put_color_table_h (Lisp_Object color_table,
+ const unsigned char *chars_start,
+ int chars_len,
+ Lisp_Object color)
{
struct Lisp_Hash_Table *table = XHASH_TABLE (color_table);
unsigned hash_code;
}
static Lisp_Object
-xpm_get_color_table_h (color_table, chars_start, chars_len)
- Lisp_Object color_table;
- const unsigned char *chars_start;
- int chars_len;
+xpm_get_color_table_h (Lisp_Object color_table,
+ const unsigned char *chars_start,
+ int chars_len)
{
struct Lisp_Hash_Table *table = XHASH_TABLE (color_table);
int i = hash_lookup (table, make_unibyte_string (chars_start, chars_len),
static const char xpm_color_key_strings[][4] = {"s", "m", "g4", "g", "c"};
static int
-xpm_str_to_color_key (s)
- const char *s;
+xpm_str_to_color_key (const char *s)
{
int i;
}
static int
-xpm_load_image (f, img, contents, end)
- struct frame *f;
- struct image *img;
- const unsigned char *contents, *end;
+xpm_load_image (struct frame *f,
+ struct image *img,
+ const unsigned char *contents,
+ const unsigned char *end)
{
const unsigned char *s = contents, *beg, *str;
unsigned char buffer[BUFSIZ];
}
static int
-xpm_load (f, img)
- struct frame *f;
- struct image *img;
+xpm_load (struct frame *f,
+ struct image *img)
{
int success_p = 0;
Lisp_Object file_name;
Lisp_Object file;
unsigned char *contents;
int size;
- struct gcpro gcpro1;
file = x_find_image_file (file_name);
- GCPRO1 (file);
if (!STRINGP (file))
{
image_error ("Cannot find image file `%s'", file_name, Qnil);
- UNGCPRO;
return 0;
}
if (contents == NULL)
{
image_error ("Error loading XPM image `%s'", img->spec, Qnil);
- UNGCPRO;
return 0;
}
success_p = xpm_load_image (f, img, contents, contents + size);
xfree (contents);
- UNGCPRO;
}
else
{
Lisp_Object data;
data = image_spec_value (img->spec, QCdata, NULL);
+ if (!STRINGP (data))
+ {
+ image_error ("Invalid image data `%s'", data, Qnil);
+ return 0;
+ }
success_p = xpm_load_image (f, img, SDATA (data),
SDATA (data) + SBYTES (data));
}
#else /* COLOR_TABLE_SUPPORT */
static unsigned long
-lookup_rgb_color (f, r, g, b)
- struct frame *f;
- int r, g, b;
+lookup_rgb_color (struct frame *f, int r, int g, int b)
{
unsigned long pixel;
}
static void
-init_color_table ()
+init_color_table (void)
{
}
#endif /* COLOR_TABLE_SUPPORT */
stored in ximg->data. */
static void
-XPutPixel (ximg, x, y, color)
- XImagePtr ximg;
- int x, y;
- COLORREF color;
+XPutPixel (XImagePtr ximg, int x, int y, COLORREF color)
{
int width = ximg->info.bmiHeader.biWidth;
int height = ximg->info.bmiHeader.biHeight;
XImagePtr ximg;
Lisp_Object file, specified_file;
enum {PBM_MONO, PBM_GRAY, PBM_COLOR} type;
- struct gcpro gcpro1;
unsigned char *contents = NULL;
unsigned char *end, *p;
int size;
specified_file = image_spec_value (img->spec, QCfile, NULL);
- file = Qnil;
- GCPRO1 (file);
if (STRINGP (specified_file))
{
if (!STRINGP (file))
{
image_error ("Cannot find image file `%s'", specified_file, Qnil);
- UNGCPRO;
return 0;
}
if (contents == NULL)
{
image_error ("Error reading `%s'", file, Qnil);
- UNGCPRO;
return 0;
}
{
Lisp_Object data;
data = image_spec_value (img->spec, QCdata, NULL);
+ if (!STRINGP (data))
+ {
+ image_error ("Invalid image data `%s'", data, Qnil);
+ return 0;
+ }
p = SDATA (data);
end = p + SBYTES (data);
}
image_error ("Not a PBM image: `%s'", img->spec, Qnil);
error:
xfree (contents);
- UNGCPRO;
return 0;
}
img->width = width;
img->height = height; */
- UNGCPRO;
xfree (contents);
return 1;
}
Lisp_Object specified_data;
int x, y, i;
XImagePtr ximg, mask_img = NULL;
- struct gcpro gcpro1;
png_struct *png_ptr = NULL;
png_info *info_ptr = NULL, *end_info = NULL;
FILE *volatile fp = NULL;
/* Find out what file to load. */
specified_file = image_spec_value (img->spec, QCfile, NULL);
specified_data = image_spec_value (img->spec, QCdata, NULL);
- file = Qnil;
- GCPRO1 (file);
if (NILP (specified_data))
{
if (!STRINGP (file))
{
image_error ("Cannot find image file `%s'", specified_file, Qnil);
- UNGCPRO;
return 0;
}
if (!fp)
{
image_error ("Cannot open image file `%s'", file, Qnil);
- UNGCPRO;
return 0;
}
|| fn_png_sig_cmp (sig, 0, sizeof sig))
{
image_error ("Not a PNG file: `%s'", file, Qnil);
- UNGCPRO;
fclose (fp);
return 0;
}
}
else
{
+ if (!STRINGP (specified_data))
+ {
+ image_error ("Invalid image data `%s'", specified_data, Qnil);
+ return 0;
+ }
+
/* Read from memory. */
tbr.bytes = SDATA (specified_data);
tbr.len = SBYTES (specified_data);
|| fn_png_sig_cmp (tbr.bytes, 0, sizeof sig))
{
image_error ("Not a PNG image: `%s'", img->spec, Qnil);
- UNGCPRO;
return 0;
}
if (!png_ptr)
{
if (fp) fclose (fp);
- UNGCPRO;
return 0;
}
{
fn_png_destroy_read_struct (&png_ptr, NULL, NULL);
if (fp) fclose (fp);
- UNGCPRO;
return 0;
}
{
fn_png_destroy_read_struct (&png_ptr, &info_ptr, NULL);
if (fp) fclose (fp);
- UNGCPRO;
return 0;
}
xfree (pixels);
xfree (rows);
if (fp) fclose (fp);
- UNGCPRO;
return 0;
}
x_destroy_x_image (mask_img);
}
- UNGCPRO;
return 1;
}
/* Wrapper since we can't directly assign the function pointer
to another function pointer that was declared more completely easily. */
static boolean
-jpeg_resync_to_restart_wrapper (cinfo, desired)
- j_decompress_ptr cinfo;
- int desired;
+jpeg_resync_to_restart_wrapper (j_decompress_ptr cinfo, int desired)
{
return fn_jpeg_resync_to_restart (cinfo, desired);
}
int rc;
unsigned long *colors;
int width, height;
- struct gcpro gcpro1;
/* Open the JPEG file. */
specified_file = image_spec_value (img->spec, QCfile, NULL);
specified_data = image_spec_value (img->spec, QCdata, NULL);
- file = Qnil;
- GCPRO1 (file);
if (NILP (specified_data))
{
if (!STRINGP (file))
{
image_error ("Cannot find image file `%s'", specified_file, Qnil);
- UNGCPRO;
return 0;
}
if (fp == NULL)
{
image_error ("Cannot open `%s'", file, Qnil);
- UNGCPRO;
return 0;
}
}
+ else if (!STRINGP (specified_data))
+ {
+ image_error ("Invalid image data `%s'", specified_data, Qnil);
+ return 0;
+ }
/* Customize libjpeg's error handling to call my_error_exit when an
error is detected. This function will perform a longjmp.
/* Free pixmap and colors. */
x_clear_image (f, img);
-
- UNGCPRO;
return 0;
}
/* Put the image into the pixmap. */
x_put_x_image (f, ximg, img->pixmap, width, height);
x_destroy_x_image (ximg);
- UNGCPRO;
return 1;
}
uint32 *buf;
int rc, rc2;
XImagePtr ximg;
- struct gcpro gcpro1;
tiff_memory_source memsrc;
Lisp_Object image;
specified_file = image_spec_value (img->spec, QCfile, NULL);
specified_data = image_spec_value (img->spec, QCdata, NULL);
- file = Qnil;
- GCPRO1 (file);
fn_TIFFSetErrorHandler (tiff_error_handler);
fn_TIFFSetWarningHandler (tiff_warning_handler);
if (!STRINGP (file))
{
image_error ("Cannot find image file `%s'", specified_file, Qnil);
- UNGCPRO;
return 0;
}
if (tiff == NULL)
{
image_error ("Cannot open `%s'", file, Qnil);
- UNGCPRO;
return 0;
}
}
else
{
+ if (!STRINGP (specified_data))
+ {
+ image_error ("Invalid image data `%s'", specified_data, Qnil);
+ return 0;
+ }
+
/* Memory source! */
memsrc.bytes = SDATA (specified_data);
memsrc.len = SBYTES (specified_data);
if (!tiff)
{
image_error ("Cannot open memory source for `%s'", img->spec, Qnil);
- UNGCPRO;
return 0;
}
}
image_error ("Invalid image number `%s' in image `%s'",
image, img->spec);
fn_TIFFClose (tiff);
- UNGCPRO;
return 0;
}
}
{
image_error ("Invalid image size (see `max-image-size')", Qnil, Qnil);
fn_TIFFClose (tiff);
- UNGCPRO;
return 0;
}
{
image_error ("Error reading TIFF image `%s'", img->spec, Qnil);
xfree (buf);
- UNGCPRO;
return 0;
}
if (!x_create_x_image_and_pixmap (f, width, height, 0, &ximg, &img->pixmap))
{
xfree (buf);
- UNGCPRO;
return 0;
}
x_destroy_x_image (ximg);
xfree (buf);
- UNGCPRO;
return 1;
}
ColorMapObject *gif_color_map;
unsigned long pixel_colors[256];
GifFileType *gif;
- struct gcpro gcpro1;
Lisp_Object image;
int ino, image_height, image_width;
gif_memory_source memsrc;
specified_file = image_spec_value (img->spec, QCfile, NULL);
specified_data = image_spec_value (img->spec, QCdata, NULL);
- file = Qnil;
- GCPRO1 (file);
if (NILP (specified_data))
{
if (!STRINGP (file))
{
image_error ("Cannot find image file `%s'", specified_file, Qnil);
- UNGCPRO;
return 0;
}
if (gif == NULL)
{
image_error ("Cannot open `%s'", file, Qnil);
- UNGCPRO;
return 0;
}
}
else
{
+ if (!STRINGP (specified_data))
+ {
+ image_error ("Invalid image data `%s'", specified_data, Qnil);
+ return 0;
+ }
+
/* Read from memory! */
current_gif_memory_src = &memsrc;
memsrc.bytes = SDATA (specified_data);
if (!gif)
{
image_error ("Cannot open memory source `%s'", img->spec, Qnil);
- UNGCPRO;
return 0;
}
}
{
image_error ("Invalid image size (see `max-image-size')", Qnil, Qnil);
fn_DGifCloseFile (gif);
- UNGCPRO;
return 0;
}
{
image_error ("Error reading `%s'", img->spec, Qnil);
fn_DGifCloseFile (gif);
- UNGCPRO;
return 0;
}
image_error ("Invalid image number `%s' in image `%s'",
image, img->spec);
fn_DGifCloseFile (gif);
- UNGCPRO;
return 0;
}
{
image_error ("Invalid image size (see `max-image-size')", Qnil, Qnil);
fn_DGifCloseFile (gif);
- UNGCPRO;
return 0;
}
if (!x_create_x_image_and_pixmap (f, width, height, 0, &ximg, &img->pixmap))
{
fn_DGifCloseFile (gif);
- UNGCPRO;
return 0;
}
x_put_x_image (f, ximg, img->pixmap, width, height);
x_destroy_x_image (ximg);
- UNGCPRO;
return 1;
}
#endif /* HAVE_GIF */
+/***********************************************************************
+ imagemagick
+***********************************************************************/
+#if defined (HAVE_IMAGEMAGICK)
+Lisp_Object Vimagemagick_render_type;
+
+/* The symbol `imagemagick' identifying images of this type. */
+
+Lisp_Object Qimagemagick;
+Lisp_Object Vimagemagick_render_type;
+
+/* Indices of image specification fields in imagemagick_format, below. */
+
+enum imagemagick_keyword_index
+ {
+ IMAGEMAGICK_TYPE,
+ IMAGEMAGICK_DATA,
+ IMAGEMAGICK_FILE,
+ IMAGEMAGICK_ASCENT,
+ IMAGEMAGICK_MARGIN,
+ IMAGEMAGICK_RELIEF,
+ IMAGEMAGICK_ALGORITHM,
+ IMAGEMAGICK_HEURISTIC_MASK,
+ IMAGEMAGICK_MASK,
+ IMAGEMAGICK_BACKGROUND,
+ IMAGEMAGICK_HEIGHT,
+ IMAGEMAGICK_WIDTH,
+ IMAGEMAGICK_ROTATION,
+ IMAGEMAGICK_CROP,
+ IMAGEMAGICK_LAST
+ };
+
+/* Vector of image_keyword structures describing the format
+ of valid user-defined image specifications. */
+
+static struct image_keyword imagemagick_format[IMAGEMAGICK_LAST] =
+ {
+ {":type", IMAGE_SYMBOL_VALUE, 1},
+ {":data", IMAGE_STRING_VALUE, 0},
+ {":file", IMAGE_STRING_VALUE, 0},
+ {":ascent", IMAGE_ASCENT_VALUE, 0},
+ {":margin", IMAGE_POSITIVE_INTEGER_VALUE_OR_PAIR, 0},
+ {":relief", IMAGE_INTEGER_VALUE, 0},
+ {":conversion", IMAGE_DONT_CHECK_VALUE_TYPE, 0},
+ {":heuristic-mask", IMAGE_DONT_CHECK_VALUE_TYPE, 0},
+ {":mask", IMAGE_DONT_CHECK_VALUE_TYPE, 0},
+ {":background", IMAGE_STRING_OR_NIL_VALUE, 0},
+ {":height", IMAGE_INTEGER_VALUE, 0},
+ {":width", IMAGE_INTEGER_VALUE, 0},
+ {":rotation", IMAGE_NUMBER_VALUE, 0},
+ {":crop", IMAGE_DONT_CHECK_VALUE_TYPE, 0}
+ };
+/* Free X resources of imagemagick image IMG which is used on frame F. */
+
+static void
+imagemagick_clear_image (struct frame *f,
+ struct image *img)
+{
+ x_clear_image (f, img);
+}
+
+
+
+/* Return non-zero if OBJECT is a valid IMAGEMAGICK image specification. Do
+ this by calling parse_image_spec and supplying the keywords that
+ identify the IMAGEMAGICK format. */
+
+static int
+imagemagick_image_p (Lisp_Object object)
+{
+ struct image_keyword fmt[IMAGEMAGICK_LAST];
+ memcpy (fmt, imagemagick_format, sizeof fmt);
+
+ if (!parse_image_spec (object, fmt, IMAGEMAGICK_LAST, Qimagemagick))
+ return 0;
+
+ /* Must specify either the :data or :file keyword. */
+ return fmt[IMAGEMAGICK_FILE].count + fmt[IMAGEMAGICK_DATA].count == 1;
+}
+
+/* The GIF library also defines DrawRectangle, but its never used in Emacs.
+ Therefore rename the function so it doesnt collide with ImageMagick. */
+#define DrawRectangle DrawRectangleGif
+#include <wand/MagickWand.h>
+
+/* imagemagick_load_image is a helper function for imagemagick_load,
+ which does the actual loading given contents and size, apart from
+ frame and image structures, passed from imagemagick_load.
+
+ Uses librimagemagick to do most of the image processing.
+
+ non-zero when successful.
+*/
+
+static int
+imagemagick_load_image (/* Pointer to emacs frame structure. */
+ struct frame *f,
+ /* Pointer to emacs image structure. */
+ struct image *img,
+ /* String containing the IMAGEMAGICK data to
+ be parsed. */
+ unsigned char *contents,
+ /* Size of data in bytes. */
+ unsigned int size,
+ /* Filename, either pass filename or
+ contents/size. */
+ unsigned char *filename)
+{
+ unsigned long width;
+ unsigned long height;
+
+ MagickBooleanType
+ status;
+
+ XImagePtr ximg;
+ Lisp_Object specified_bg;
+ XColor background;
+ int x;
+ int y;
+
+ MagickWand *image_wand;
+ MagickWand *ping_wand;
+ PixelIterator *iterator;
+ PixelWand **pixels;
+ MagickPixelPacket pixel;
+ Lisp_Object image;
+ Lisp_Object value;
+ Lisp_Object crop, geometry;
+ long ino;
+ int desired_width, desired_height;
+ double rotation;
+ 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 many sub-images it contains. Pinging is faster
+ than loading the image to find out things about it. */
+ image = image_spec_value (img->spec, QCindex, NULL);
+ ino = INTEGERP (image) ? XFASTINT (image) : 0;
+ ping_wand = NewMagickWand ();
+ MagickSetResolution (ping_wand, 2, 2);
+ if (filename != NULL)
+ {
+ status = MagickPingImage (ping_wand, filename);
+ }
+ else
+ {
+ status = MagickPingImageBlob (ping_wand, contents, size);
+ }
+
+ if (ino >= MagickGetNumberImages (ping_wand))
+ {
+ image_error ("Invalid image number `%s' in image `%s'",
+ image, img->spec);
+ DestroyMagickWand (ping_wand);
+ return 0;
+ }
+
+ if (MagickGetNumberImages(ping_wand) > 1)
+ img->data.lisp_val =
+ Fcons (Qcount,
+ Fcons (make_number (MagickGetNumberImages (ping_wand)),
+ img->data.lisp_val));
+
+ DestroyMagickWand (ping_wand);
+ /* Now, after pinging, we know how many images are inside the
+ file. If its not a bundle, just one. */
+
+ 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);
+ CatchException (exception);
+
+ image_wand = NewMagickWandFromImage (im_image);
+ }
+ else
+ {
+ image_wand = NewMagickWand ();
+ status = MagickReadImageBlob (image_wand, contents, size);
+ }
+ image_error ("im read failed", Qnil, Qnil);
+ if (status == MagickFalse) goto imagemagick_error;
+
+ /* 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);
+ desired_height = (INTEGERP (value) ? XFASTINT (value) : -1);
+
+ height = MagickGetImageHeight (image_wand);
+ width = MagickGetImageWidth (image_wand);
+
+ if(desired_width != -1 && desired_height == -1)
+ {
+ /* w known, calculate h. */
+ desired_height = (double) desired_width / width * height;
+ }
+ if(desired_width == -1 && desired_height != -1)
+ {
+ /* h known, calculate w. */
+ desired_width = (double) desired_height / height * width;
+ }
+ if(desired_width != -1 && desired_height != -1)
+ {
+ status = MagickScaleImage (image_wand, desired_width, desired_height);
+ if (status == MagickFalse)
+ {
+ image_error ("Imagemagick scale failed", Qnil, Qnil);
+ goto imagemagick_error;
+ }
+ }
+
+
+ /* crop behaves similar to image slicing in Emacs but is more memory
+ efficient. */
+ crop = image_spec_value (img->spec, QCcrop, NULL);
+
+ if (CONSP (crop) && INTEGERP (XCAR (crop)))
+ {
+ /* After some testing, it seems MagickCropImage is the fastest
+ crop function in ImageMagick. This crop function seems to do
+ less copying than the alternatives, but it still reads the
+ entire image into memory before croping, which is aparently
+ difficult to avoid when using imagemagick. */
+
+ int w, h, x, y;
+ w = XFASTINT (XCAR (crop));
+ crop = XCDR (crop);
+ if (CONSP (crop) && INTEGERP (XCAR (crop)))
+ {
+ h = XFASTINT (XCAR (crop));
+ crop = XCDR (crop);
+ if (CONSP (crop) && INTEGERP (XCAR (crop)))
+ {
+ x = XFASTINT (XCAR (crop));
+ crop = XCDR (crop);
+ if (CONSP (crop) && INTEGERP (XCAR (crop)))
+ {
+ y = XFASTINT (XCAR (crop));
+ MagickCropImage (image_wand, w, h, x, y);
+ }
+ }
+ }
+ }
+
+ /* Furthermore :rotation. we need background color and angle for
+ rotation. */
+ /*
+ TODO background handling for rotation specified_bg =
+ image_spec_value (img->spec, QCbackground, NULL); if (!STRINGP
+ (specified_bg). */
+ 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);
+ if (status == MagickFalse)
+ {
+ image_error ("Imagemagick image rotate failed", Qnil, Qnil);
+ goto imagemagick_error;
+ }
+ }
+
+ /* Finaly we are done manipulating the image, figure out resulting
+ width, height, and then transfer ownerwship to Emacs. */
+ height = MagickGetImageHeight (image_wand);
+ width = MagickGetImageWidth (image_wand);
+ if (status == MagickFalse)
+ {
+ image_error ("Imagemagick image get size failed", Qnil, Qnil);
+ goto imagemagick_error;
+ }
+
+ if (! check_image_size (f, width, height))
+ {
+ image_error ("Invalid image size (see `max-image-size')", Qnil, Qnil);
+ goto imagemagick_error;
+ }
+
+ /* We can now get a valid pixel buffer from the imagemagick file, if all
+ went ok. */
+
+ init_color_table ();
+ imagemagick_rendermethod = (INTEGERP (Vimagemagick_render_type)
+ ? XFASTINT (Vimagemagick_render_type) : 0);
+ if (imagemagick_rendermethod == 0)
+ {
+ /* Try to create a x pixmap to hold the imagemagick pixmap. */
+ if (!x_create_x_image_and_pixmap (f, width, height, 0,
+ &ximg, &img->pixmap))
+ {
+ image_error("Imagemagick X bitmap allocation failure", Qnil, Qnil);
+ goto imagemagick_error;
+ }
+
+ /* Copy imagegmagick image to x with primitive yet robust pixel
+ pusher loop. This has been tested a lot with many different
+ images. */
+
+ /* Copy pixels from the imagemagick image structure to the x image map. */
+ iterator = NewPixelIterator (image_wand);
+ if (iterator == (PixelIterator *) NULL)
+ {
+ image_error ("Imagemagick pixel iterator creation failed",
+ Qnil, Qnil);
+ goto imagemagick_error;
+ }
+
+ for (y = 0; y < (long) MagickGetImageHeight (image_wand); y++)
+ {
+ pixels = PixelGetNextIteratorRow (iterator, &width);
+ if (pixels == (PixelWand **) NULL)
+ break;
+ for (x = 0; x < (long) width; x++)
+ {
+ PixelGetMagickColor (pixels[x], &pixel);
+ XPutPixel (ximg, x, y,
+ lookup_rgb_color (f,
+ pixel.red,
+ pixel.green,
+ pixel.blue));
+ }
+ }
+ DestroyPixelIterator (iterator);
+ }
+
+ if (imagemagick_rendermethod == 1)
+ {
+ /* Magicexportimage is normaly 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);*/
+ 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))
+ {
+ image_error("Imagemagick X bitmap allocation failure", Qnil, Qnil);
+ goto imagemagick_error;
+ }
+
+
+ /* Oddly, the below code doesnt 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 dont 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;
+
+ /* Put the image into the pixmap, then free the X image and its
+ buffer. */
+ 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);
+
+ return 1;
+
+ imagemagick_error:
+ /* TODO more cleanup. */
+ image_error ("Error parsing IMAGEMAGICK image `%s'", img->spec, Qnil);
+ return 0;
+}
+
+
+/* Load IMAGEMAGICK image IMG for use on frame F. Value is non-zero if
+ successful. this function will go into the imagemagick_type structure, and
+ the prototype thus needs to be compatible with that structure. */
+
+static int
+imagemagick_load (struct frame *f,
+ struct image *img)
+{
+ int success_p = 0;
+ Lisp_Object file_name;
+
+ /* If IMG->spec specifies a file name, create a non-file spec from it. */
+ file_name = image_spec_value (img->spec, QCfile, NULL);
+ if (STRINGP (file_name))
+ {
+ Lisp_Object file;
+
+ file = x_find_image_file (file_name);
+ if (!STRINGP (file))
+ {
+ image_error ("Cannot find image file `%s'", file_name, Qnil);
+ return 0;
+ }
+ success_p = imagemagick_load_image (f, img, 0, 0, SDATA (file));
+ }
+ /* Else its not a file, its a lisp object. Load the image from a
+ lisp object rather than a file. */
+ else
+ {
+ Lisp_Object data;
+
+ data = image_spec_value (img->spec, QCdata, NULL);
+ if (!STRINGP (data))
+ {
+ image_error ("Invalid image data `%s'", data, Qnil);
+ return 0;
+ }
+ success_p = imagemagick_load_image (f, img, SDATA (data),
+ SBYTES (data), NULL);
+ }
+
+ return success_p;
+}
+
+/* Structure describing the image type `imagemagick'. 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 imagemagick_type =
+ {
+ /* An identifier showing that this is an image structure for the
+ IMAGEMAGICK format. */
+ &Qimagemagick,
+ /* Handle to a function that can be used to identify a IMAGEMAGICK
+ file. */
+ imagemagick_image_p,
+ /* Handle to function used to load a IMAGEMAGICK file. */
+ imagemagick_load,
+ /* Handle to function to free resources for IMAGEMAGICK. */
+ imagemagick_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. */
+ NULL
+ };
+
+
+
+
+DEFUN ("imagemagick-types", Fimagemagick_types, Simagemagick_types, 0, 0, 0,
+ doc: /* Return image file types supported by ImageMagick.
+Since ImageMagick recognizes a lot of file-types that clash with Emacs,
+such as .c, we want to be able to alter the list at the lisp level. */)
+ (void)
+{
+ Lisp_Object typelist = Qnil;
+ unsigned long numf;
+ ExceptionInfo ex;
+ char **imtypes = GetMagickList ("*", &numf, &ex);
+ int i;
+ Lisp_Object Qimagemagicktype;
+ for (i = 0; i < numf; i++)
+ {
+ Qimagemagicktype = intern (imtypes[i]);
+ typelist = Fcons (Qimagemagicktype, typelist);
+ }
+ return typelist;
+}
+
+#endif /* defined (HAVE_IMAGEMAGICK) */
+
+
\f
/***********************************************************************
SVG
Lisp_Object file;
unsigned char *contents;
int size;
- struct gcpro gcpro1;
file = x_find_image_file (file_name);
- GCPRO1 (file);
if (!STRINGP (file))
{
image_error ("Cannot find image file `%s'", file_name, Qnil);
- UNGCPRO;
return 0;
}
if (contents == NULL)
{
image_error ("Error loading SVG image `%s'", img->spec, Qnil);
- UNGCPRO;
return 0;
}
/* If the file was slurped into memory properly, parse it. */
success_p = svg_load_image (f, img, contents, size);
xfree (contents);
- UNGCPRO;
}
/* Else its not a file, its a lisp object. Load the image from a
lisp object rather than a file. */
Lisp_Object data;
data = image_spec_value (img->spec, QCdata, NULL);
+ if (!STRINGP (data))
+ {
+ image_error ("Invalid image data `%s'", data, Qnil);
+ return 0;
+ }
success_p = svg_load_image (f, img, SDATA (data), SBYTES (data));
}
#define HAVE_GHOSTSCRIPT 1
#endif /* HAVE_X_WINDOWS */
-/* The symbol `postscript' identifying images of this type. */
-
-Lisp_Object Qpostscript;
-
#ifdef HAVE_GHOSTSCRIPT
static int gs_image_p (Lisp_Object object);
{
char buffer[100];
Lisp_Object window_and_pixmap_id = Qnil, loader, pt_height, pt_width;
- struct gcpro gcpro1, gcpro2;
Lisp_Object frame;
double in_width, in_height;
Lisp_Object pixel_colors = Qnil;
= 1/72 in, xdpi and ydpi are stored in the frame's X display
info. */
pt_width = image_spec_value (img->spec, QCpt_width, NULL);
- in_width = XFASTINT (pt_width) / 72.0;
+ in_width = INTEGERP (pt_width) ? XFASTINT (pt_width) / 72.0 : 0;
img->width = in_width * FRAME_X_DISPLAY_INFO (f)->resx;
pt_height = image_spec_value (img->spec, QCpt_height, NULL);
- in_height = XFASTINT (pt_height) / 72.0;
+ in_height = INTEGERP (pt_height) ? XFASTINT (pt_height) / 72.0 : 0;
img->height = in_height * FRAME_X_DISPLAY_INFO (f)->resy;
if (!check_image_size (f, img->width, img->height))
if successful. We do not record_unwind_protect here because
other places in redisplay like calling window scroll functions
don't either. Let the Lisp loader use `unwind-protect' instead. */
- GCPRO2 (window_and_pixmap_id, pixel_colors);
-
sprintf (buffer, "%lu %lu",
(unsigned long) FRAME_X_WINDOW (f),
(unsigned long) img->pixmap);
make_number (img->height),
window_and_pixmap_id,
pixel_colors);
- UNGCPRO;
return PROCESSP (img->data.lisp_val);
}
return CHECK_LIB_AVAILABLE (&svg_type, init_svg_functions, libraries);
#endif
+#if defined (HAVE_IMAGEMAGICK)
+ if (EQ (type, Qimagemagick))
+ {
+ /* MagickWandGenesis() initalizes the imagemagick library. */
+ MagickWandGenesis ();
+ return CHECK_LIB_AVAILABLE (&imagemagick_type, init_imagemagick_functions,
+ libraries);
+ }
+#endif
+
#ifdef HAVE_GHOSTSCRIPT
if (EQ (type, Qpostscript))
return CHECK_LIB_AVAILABLE (&gs_type, init_gs_functions, libraries);
void
syms_of_image (void)
{
- extern Lisp_Object Qrisky_local_variable; /* Syms_of_xdisp has already run. */
-
/* Initialize this only once, since that's what we do with Vimage_types
and they are supposed to be in sync. Initializing here gives correct
operation on GNU/Linux of calling dump-emacs after loading some images. */
staticpro (&QCheuristic_mask);
QCindex = intern_c_string (":index");
staticpro (&QCindex);
+ QCgeometry = intern (":geometry");
+ staticpro (&QCgeometry);
+ QCcrop = intern (":crop");
+ staticpro (&QCcrop);
+ QCrotation = intern (":rotation");
+ staticpro (&QCrotation);
QCmatrix = intern_c_string (":matrix");
staticpro (&QCmatrix);
QCcolor_adjustment = intern_c_string (":color-adjustment");
ADD_IMAGE_TYPE (Qpng);
#endif
+#if defined (HAVE_IMAGEMAGICK)
+ Qimagemagick = intern ("imagemagick");
+ staticpro (&Qimagemagick);
+ ADD_IMAGE_TYPE (Qimagemagick);
+#endif
+
#if defined (HAVE_RSVG)
Qsvg = intern_c_string ("svg");
staticpro (&Qsvg);
#endif /* HAVE_RSVG */
defsubr (&Sinit_image_library);
+#ifdef HAVE_IMAGEMAGICK
+ defsubr (&Simagemagick_types);
+#endif
defsubr (&Sclear_image_cache);
defsubr (&Simage_flush);
defsubr (&Simage_size);
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. */);
+#endif
+
}
void
HCoop / bpt / emacs.git / blobdiff