#include <signal.h>
#include <stdio.h>
#include <math.h>
+#include <ctype.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
typedef struct x_bitmap_record Bitmap_Record;
#define GET_PIXEL(ximg, x, y) XGetPixel(ximg, x, y)
#define NO_PIXMAP None
-#define PNG_BG_COLOR_SHIFT 0
#define RGB_PIXEL_COLOR unsigned long
typedef struct w32_bitmap_record Bitmap_Record;
#define GET_PIXEL(ximg, x, y) GetPixel(ximg, x, y)
#define NO_PIXMAP 0
-#define PNG_BG_COLOR_SHIFT 0
#define RGB_PIXEL_COLOR COLORREF
#define GET_PIXEL(ximg, x, y) XGetPixel(ximg, x, y)
#define NO_PIXMAP 0
-#define PNG_BG_COLOR_SHIFT 8
#define RGB_PIXEL_COLOR unsigned long
int x, y;
unsigned long pixel;
{
+ CGrafPtr old_port;
+ GDHandle old_gdh;
RGBColor color;
+ GetGWorld (&old_port, &old_gdh);
SetGWorld (ximage, NULL);
color.red = RED16_FROM_ULONG (pixel);
color.green = GREEN16_FROM_ULONG (pixel);
color.blue = BLUE16_FROM_ULONG (pixel);
SetCPixel (x, y, &color);
+
+ SetGWorld (old_port, old_gdh);
}
static unsigned long
XImagePtr ximage;
int x, y;
{
+ CGrafPtr old_port;
+ GDHandle old_gdh;
RGBColor color;
+ GetGWorld (&old_port, &old_gdh);
SetGWorld (ximage, NULL);
GetCPixel (x, y, &color);
+
+ SetGWorld (old_port, old_gdh);
return RGB_TO_ULONG (color.red >> 8, color.green >> 8, color.blue >> 8);
}
{
UnlockPixels (GetGWorldPixMap (ximg));
}
-#endif
+#endif /* MAC_OS */
/* Functions to access the contents of a bitmap, given an id. */
static struct image_type *image_types;
+/* A list of symbols, one for each supported image type. */
+
+Lisp_Object Vimage_types;
+
+/* Cache for delayed-loading image types. */
+
+static Lisp_Object Vimage_type_cache;
+
/* The symbol `xbm' which is used as the type symbol for XBM images. */
Lisp_Object Qxbm;
extern Lisp_Object QCwidth, QCheight, QCforeground, QCbackground, QCfile;
extern Lisp_Object QCdata, QCtype;
+extern Lisp_Object Qcenter;
Lisp_Object QCascent, QCmargin, QCrelief;
Lisp_Object QCconversion, QCcolor_symbols, QCheuristic_mask;
Lisp_Object QCindex, QCmatrix, QCcolor_adjustment, QCmask;
/* Other symbols. */
Lisp_Object Qlaplace, Qemboss, Qedge_detection, Qheuristic;
-Lisp_Object Qcenter;
/* Time in seconds after which images should be removed from the cache
if not displayed. */
/* Function prototypes. */
-static void define_image_type P_ ((struct image_type *type));
+static Lisp_Object define_image_type P_ ((struct image_type *type, int loaded));
static struct image_type *lookup_image_type P_ ((Lisp_Object symbol));
static void image_error P_ ((char *format, Lisp_Object, Lisp_Object));
static void x_laplace P_ ((struct frame *, struct image *));
static int x_build_heuristic_mask P_ ((struct frame *, struct image *,
Lisp_Object));
+#define CACHE_IMAGE_TYPE(type, status) \
+ do { Vimage_type_cache = Fcons (Fcons (type, status), Vimage_type_cache); } while (0)
+
+#define ADD_IMAGE_TYPE(type) \
+ do { Vimage_types = Fcons (type, Vimage_types); } while (0)
/* Define a new image type from TYPE. This adds a copy of TYPE to
- image_types and adds the symbol *TYPE->type to Vimage_types. */
+ image_types and caches the loading status of TYPE. */
-static void
-define_image_type (type)
+static Lisp_Object
+define_image_type (type, loaded)
struct image_type *type;
+ int loaded;
{
- /* 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);
- bcopy (type, p, sizeof *p);
- p->next = image_types;
- image_types = p;
- Vimage_types = Fcons (*p->type, Vimage_types);
+ Lisp_Object success;
+
+ if (!loaded)
+ success = Qnil;
+ else
+ {
+ /* 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);
+ bcopy (type, p, sizeof *p);
+ p->next = image_types;
+ image_types = p;
+ success = Qt;
+ }
+
+ CACHE_IMAGE_TYPE (*type->type, success);
+ return success;
}
{
struct image_type *type;
+ /* We must initialize the image-type if it hasn't been already. */
+ if (NILP (Finit_image_library (symbol, Qnil)))
+ return 0; /* unimplemented */
+
for (type = image_types; type; type = type->next)
if (EQ (symbol, *type->type))
break;
drawn in face FACE. */
int
-image_ascent (img, face)
+image_ascent (img, face, slice)
struct image *img;
struct face *face;
+ struct glyph_slice *slice;
{
- int height = img->height + img->vmargin;
+ int height;
int ascent;
+ if (slice->height == img->height)
+ height = img->height + img->vmargin;
+ else if (slice->y == 0)
+ height = slice->height + img->vmargin;
+ else
+ height = slice->height;
+
if (img->ascent == CENTERED_IMAGE_ASCENT)
{
if (face->font)
/* Return the `background' field of IMG. If IMG doesn't have one yet,
it is guessed heuristically. If non-zero, XIMG is an existing
XImage object (or device context with the image selected on W32) to
- use for the heuristic. */
+ use for the heuristic. */
RGB_PIXEL_COLOR
image_background (img, f, ximg)
if (free_ximg)
Destroy_Image (ximg, prev);
-
+
img->background_valid = 1;
}
Lisp_Object spec;
{
struct image_cache *c = FRAME_X_IMAGE_CACHE (f);
+#ifdef _MSC_VER
+ /* Work around a problem with MinGW builds of graphics libraries
+ not honoring calling conventions. */
+ static
+#endif
struct image *img;
int i;
unsigned hash;
if (!fn_##func) return 0; \
}
+/* Load a DLL implementing an image type.
+ The `image-library-alist' variable associates a symbol,
+ identifying an image type, to a list of possible filenames.
+ The function returns NULL if no library could be loaded for
+ the given image type, or if the library was previously loaded;
+ else the handle of the DLL. */
+static HMODULE
+w32_delayed_load (Lisp_Object libraries, Lisp_Object type)
+{
+ HMODULE library = NULL;
+
+ if (CONSP (libraries) && NILP (Fassq (type, Vimage_type_cache)))
+ {
+ Lisp_Object dlls = Fassq (type, libraries);
+
+ if (CONSP (dlls))
+ for (dlls = XCDR (dlls); CONSP (dlls); dlls = XCDR (dlls))
+ {
+ CHECK_STRING_CAR (dlls);
+ if (library = LoadLibrary (SDATA (XCAR (dlls))))
+ break;
+ }
+ }
+
+ return library;
+}
+
#endif /* HAVE_NTGUI */
static int x_create_x_image_and_pixmap P_ ((struct frame *, int, int, int,
goto error;
if (draw_all_pixels != graphicsImporterDrawsAllPixels)
{
+ CGrafPtr old_port;
+ GDHandle old_gdh;
+
+ GetGWorld (&old_port, &old_gdh);
SetGWorld (ximg, NULL);
bg_color.red = color.red;
bg_color.green = color.green;
#else
EraseRect (&(ximg->portRect));
#endif
+ SetGWorld (old_port, old_gdh);
}
GraphicsImportSetGWorld (gi, ximg, NULL);
GraphicsImportDraw (gi);
non_default_colors = 1;
}
- Create_Pixmap_From_Bitmap_Data (f, img, data,
+ Create_Pixmap_From_Bitmap_Data (f, img, data,
foreground, background,
non_default_colors);
xfree (data);
XPM images
***********************************************************************/
-#ifdef HAVE_XPM
+#if defined (HAVE_XPM) || defined (MAC_OS)
static int xpm_image_p P_ ((Lisp_Object object));
static int xpm_load P_ ((struct frame *f, struct image *img));
static int xpm_valid_color_symbols_p P_ ((Lisp_Object));
+#endif /* HAVE_XPM || MAC_OS */
+
+#ifdef HAVE_XPM
#ifdef HAVE_NTGUI
/* Indicate to xpm.h that we don't have Xlib. */
#define FOR_MSW
/* simx.h in xpm defines XColor and XImage differently than Emacs. */
+/* It also defines Display the same way as Emacs, but gcc 3.3 still barfs. */
#define XColor xpm_XColor
#define XImage xpm_XImage
+#define Display xpm_Display
#define PIXEL_ALREADY_TYPEDEFED
#include "X11/xpm.h"
#undef FOR_MSW
#undef XColor
#undef XImage
+#undef Display
#undef PIXEL_ALREADY_TYPEDEFED
#else
#include "X11/xpm.h"
#endif /* HAVE_NTGUI */
+#endif /* HAVE_XPM */
+#if defined (HAVE_XPM) || defined (MAC_OS)
/* The symbol `xpm' identifying XPM-format images. */
Lisp_Object Qxpm;
DEF_IMGLIB_FN (XpmReadFileToImage);
DEF_IMGLIB_FN (XImageFree);
-
static int
-init_xpm_functions (void)
+init_xpm_functions (Lisp_Object libraries)
{
HMODULE library;
- if (!(library = LoadLibrary ("libXpm.dll")))
+ if (!(library = w32_delayed_load (libraries, Qxpm)))
return 0;
LOAD_IMGLIB_FN (library, XpmFreeAttributes);
|| xpm_valid_color_symbols_p (fmt[XPM_COLOR_SYMBOLS].value)));
}
+#endif /* HAVE_XPM || MAC_OS */
/* Load image IMG which will be displayed on frame F. Value is
non-zero if successful. */
+#ifdef HAVE_XPM
+
static int
xpm_load (f, img)
struct frame *f;
#endif /* HAVE_XPM */
+#ifdef MAC_OS
+
+/* XPM support functions for Mac OS where libxpm is not available.
+ Only XPM version 3 (without any extensions) is supported. */
+
+static int xpm_scan P_ ((unsigned char **, unsigned char *,
+ unsigned char **, int *));
+static Lisp_Object xpm_make_color_table_v
+ P_ ((void (**) (Lisp_Object, unsigned char *, int, Lisp_Object),
+ Lisp_Object (**) (Lisp_Object, unsigned char *, int)));
+static void xpm_put_color_table_v P_ ((Lisp_Object, unsigned char *,
+ int, Lisp_Object));
+static Lisp_Object xpm_get_color_table_v P_ ((Lisp_Object,
+ unsigned char *, int));
+static Lisp_Object xpm_make_color_table_h
+ P_ ((void (**) (Lisp_Object, unsigned char *, int, Lisp_Object),
+ Lisp_Object (**) (Lisp_Object, unsigned char *, int)));
+static void xpm_put_color_table_h P_ ((Lisp_Object, unsigned char *,
+ int, Lisp_Object));
+static Lisp_Object xpm_get_color_table_h P_ ((Lisp_Object,
+ unsigned char *, int));
+static int xpm_str_to_color_key P_ ((char *));
+static int xpm_load_image P_ ((struct frame *, struct image *,
+ unsigned char *, unsigned char *));
+
+/* Tokens returned from xpm_scan. */
+
+enum xpm_token
+{
+ XPM_TK_IDENT = 256,
+ XPM_TK_STRING,
+ XPM_TK_EOF
+};
+
+/* Scan an XPM data and return a character (< 256) or a token defined
+ by enum xpm_token above. *S and END are the start (inclusive) and
+ the end (exclusive) addresses of the data, respectively. Advance
+ *S while scanning. If token is either XPM_TK_IDENT or
+ XPM_TK_STRING, *BEG and *LEN are set to the start address and the
+ length of the corresponding token, respectively. */
+
+static int
+xpm_scan (s, end, beg, len)
+ unsigned char **s, *end, **beg;
+ int *len;
+{
+ int c;
+
+ while (*s < end)
+ {
+ /* Skip white-space. */
+ while (*s < end && (c = *(*s)++, isspace (c)))
+ ;
+
+ /* gnus-pointer.xpm uses '-' in its identifier.
+ sb-dir-plus.xpm uses '+' in its identifier. */
+ if (isalpha (c) || c == '_' || c == '-' || c == '+')
+ {
+ *beg = *s - 1;
+ while (*s < end &&
+ (c = **s, isalnum (c) || c == '_' || c == '-' || c == '+'))
+ ++*s;
+ *len = *s - *beg;
+ return XPM_TK_IDENT;
+ }
+ else if (c == '"')
+ {
+ *beg = *s;
+ while (*s < end && **s != '"')
+ ++*s;
+ *len = *s - *beg;
+ if (*s < end)
+ ++*s;
+ return XPM_TK_STRING;
+ }
+ else if (c == '/')
+ {
+ if (*s < end && **s == '*')
+ {
+ /* C-style comment. */
+ ++*s;
+ do
+ {
+ while (*s < end && *(*s)++ != '*')
+ ;
+ }
+ while (*s < end && **s != '/');
+ if (*s < end)
+ ++*s;
+ }
+ else
+ return c;
+ }
+ else
+ return c;
+ }
+
+ return XPM_TK_EOF;
+}
+
+/* Functions for color table lookup in XPM data. A Key is a string
+ specifying the color of each pixel in XPM data. A value is either
+ an integer that specifies a pixel color, Qt that specifies
+ transparency, or Qnil for the unspecified color. If the length of
+ the key string is one, a vector is used as a table. Otherwise, a
+ hash table is used. */
+
+static Lisp_Object
+xpm_make_color_table_v (put_func, get_func)
+ void (**put_func) (Lisp_Object, unsigned char *, int, Lisp_Object);
+ Lisp_Object (**get_func) (Lisp_Object, unsigned char *, int);
+{
+ *put_func = xpm_put_color_table_v;
+ *get_func = xpm_get_color_table_v;
+ return Fmake_vector (make_number (256), Qnil);
+}
+
+static void
+xpm_put_color_table_v (color_table, chars_start, chars_len, color)
+ Lisp_Object color_table;
+ 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;
+ 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, unsigned char *, int, Lisp_Object);
+ Lisp_Object (**get_func) (Lisp_Object, unsigned char *, int);
+{
+ *put_func = xpm_put_color_table_h;
+ *get_func = xpm_get_color_table_h;
+ return make_hash_table (Qequal, make_number (DEFAULT_HASH_SIZE),
+ make_float (DEFAULT_REHASH_SIZE),
+ make_float (DEFAULT_REHASH_THRESHOLD),
+ Qnil, Qnil, Qnil);
+}
+
+static void
+xpm_put_color_table_h (color_table, chars_start, chars_len, color)
+ Lisp_Object color_table;
+ unsigned char *chars_start;
+ int chars_len;
+ Lisp_Object color;
+{
+ struct Lisp_Hash_Table *table = XHASH_TABLE (color_table);
+ unsigned hash_code;
+ Lisp_Object chars = make_unibyte_string (chars_start, chars_len);
+
+ hash_lookup (table, chars, &hash_code);
+ hash_put (table, chars, color, hash_code);
+}
+
+static Lisp_Object
+xpm_get_color_table_h (color_table, chars_start, chars_len)
+ Lisp_Object color_table;
+ 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),
+ NULL);
+
+ return i >= 0 ? HASH_VALUE (table, i) : Qnil;
+}
+
+enum xpm_color_key {
+ XPM_COLOR_KEY_S,
+ XPM_COLOR_KEY_M,
+ XPM_COLOR_KEY_G4,
+ XPM_COLOR_KEY_G,
+ XPM_COLOR_KEY_C
+};
+
+static char xpm_color_key_strings[][4] = {"s", "m", "g4", "g", "c"};
+
+static int
+xpm_str_to_color_key (s)
+ char *s;
+{
+ int i;
+
+ for (i = 0;
+ i < sizeof xpm_color_key_strings / sizeof xpm_color_key_strings[0];
+ i++)
+ if (strcmp (xpm_color_key_strings[i], s) == 0)
+ return i;
+ return -1;
+}
+
+static int
+xpm_load_image (f, img, contents, end)
+ struct frame *f;
+ struct image *img;
+ unsigned char *contents, *end;
+{
+ unsigned char *s = contents, *beg, *str;
+ unsigned char buffer[BUFSIZ];
+ int width, height, x, y;
+ int num_colors, chars_per_pixel;
+ int len, LA1;
+ void (*put_color_table) (Lisp_Object, unsigned char *, int, Lisp_Object);
+ Lisp_Object (*get_color_table) (Lisp_Object, unsigned char *, int);
+ Lisp_Object frame, color_symbols, color_table;
+ int best_key, have_mask = 0;
+ XImagePtr ximg = NULL, mask_img = NULL;
+
+#define match() \
+ LA1 = xpm_scan (&s, end, &beg, &len)
+
+#define expect(TOKEN) \
+ if (LA1 != (TOKEN)) \
+ goto failure; \
+ else \
+ match ()
+
+#define expect_ident(IDENT) \
+ if (LA1 == XPM_TK_IDENT \
+ && strlen ((IDENT)) == len && memcmp ((IDENT), beg, len) == 0) \
+ match (); \
+ else \
+ goto failure
+
+ if (!(end - s >= 9 && memcmp (s, "/* XPM */", 9) == 0))
+ goto failure;
+ s += 9;
+ match();
+ expect_ident ("static");
+ expect_ident ("char");
+ expect ('*');
+ expect (XPM_TK_IDENT);
+ expect ('[');
+ expect (']');
+ expect ('=');
+ expect ('{');
+ expect (XPM_TK_STRING);
+ if (len >= BUFSIZ)
+ goto failure;
+ memcpy (buffer, beg, len);
+ buffer[len] = '\0';
+ if (sscanf (buffer, "%d %d %d %d", &width, &height,
+ &num_colors, &chars_per_pixel) != 4
+ || width <= 0 || height <= 0
+ || num_colors <= 0 || chars_per_pixel <= 0)
+ goto failure;
+ expect (',');
+
+ XSETFRAME (frame, f);
+ if (!NILP (Fxw_display_color_p (frame)))
+ best_key = XPM_COLOR_KEY_C;
+ else if (!NILP (Fx_display_grayscale_p (frame)))
+ best_key = (XFASTINT (Fx_display_planes (frame)) > 2
+ ? XPM_COLOR_KEY_G : XPM_COLOR_KEY_G4);
+ else
+ best_key = XPM_COLOR_KEY_M;
+
+ color_symbols = image_spec_value (img->spec, QCcolor_symbols, NULL);
+ if (chars_per_pixel == 1)
+ color_table = xpm_make_color_table_v (&put_color_table,
+ &get_color_table);
+ else
+ color_table = xpm_make_color_table_h (&put_color_table,
+ &get_color_table);
+
+ while (num_colors-- > 0)
+ {
+ unsigned char *color, *max_color;
+ int key, next_key, max_key = 0;
+ Lisp_Object symbol_color = Qnil, color_val;
+ XColor cdef;
+
+ expect (XPM_TK_STRING);
+ if (len <= chars_per_pixel || len >= BUFSIZ + chars_per_pixel)
+ goto failure;
+ memcpy (buffer, beg + chars_per_pixel, len - chars_per_pixel);
+ buffer[len - chars_per_pixel] = '\0';
+
+ str = strtok (buffer, " \t");
+ if (str == NULL)
+ goto failure;
+ key = xpm_str_to_color_key (str);
+ if (key < 0)
+ goto failure;
+ do
+ {
+ color = strtok (NULL, " \t");
+ if (color == NULL)
+ goto failure;
+
+ while (str = strtok (NULL, " \t"))
+ {
+ next_key = xpm_str_to_color_key (str);
+ if (next_key >= 0)
+ break;
+ color[strlen (color)] = ' ';
+ }
+
+ if (key == XPM_COLOR_KEY_S)
+ {
+ if (NILP (symbol_color))
+ symbol_color = build_string (color);
+ }
+ else if (max_key < key && key <= best_key)
+ {
+ max_key = key;
+ max_color = color;
+ }
+ key = next_key;
+ }
+ while (str);
+
+ color_val = Qnil;
+ if (!NILP (color_symbols) && !NILP (symbol_color))
+ {
+ Lisp_Object specified_color = Fassoc (symbol_color, color_symbols);
+
+ if (CONSP (specified_color) && STRINGP (XCDR (specified_color)))
+ if (xstricmp (SDATA (XCDR (specified_color)), "None") == 0)
+ color_val = Qt;
+ else if (x_defined_color (f, SDATA (XCDR (specified_color)),
+ &cdef, 0))
+ color_val = make_number (cdef.pixel);
+ }
+ if (NILP (color_val) && max_key > 0)
+ if (xstricmp (max_color, "None") == 0)
+ color_val = Qt;
+ else if (x_defined_color (f, max_color, &cdef, 0))
+ color_val = make_number (cdef.pixel);
+ if (!NILP (color_val))
+ (*put_color_table) (color_table, beg, chars_per_pixel, color_val);
+
+ expect (',');
+ }
+
+ if (!x_create_x_image_and_pixmap (f, width, height, 0,
+ &ximg, &img->pixmap)
+ || !x_create_x_image_and_pixmap (f, width, height, 1,
+ &mask_img, &img->mask))
+ {
+ image_error ("Out of memory (%s)", img->spec, Qnil);
+ goto error;
+ }
+
+ for (y = 0; y < height; y++)
+ {
+ expect (XPM_TK_STRING);
+ str = beg;
+ if (len < width * chars_per_pixel)
+ goto failure;
+ for (x = 0; x < width; x++, str += chars_per_pixel)
+ {
+ Lisp_Object color_val =
+ (*get_color_table) (color_table, str, chars_per_pixel);
+
+ XPutPixel (ximg, x, y,
+ (INTEGERP (color_val) ? XINT (color_val)
+ : FRAME_FOREGROUND_PIXEL (f)));
+ XPutPixel (mask_img, x, y,
+ (!EQ (color_val, Qt) ? PIX_MASK_DRAW (f)
+ : (have_mask = 1, PIX_MASK_RETAIN (f))));
+ }
+ if (y + 1 < height)
+ expect (',');
+ }
+
+ img->width = width;
+ img->height = height;
+
+ x_put_x_image (f, ximg, img->pixmap, width, height);
+ x_destroy_x_image (ximg);
+ if (have_mask)
+ {
+ x_put_x_image (f, mask_img, img->mask, width, height);
+ x_destroy_x_image (mask_img);
+ }
+ else
+ {
+ x_destroy_x_image (mask_img);
+ Free_Pixmap (FRAME_X_DISPLAY (f), img->mask);
+ img->mask = NO_PIXMAP;
+ }
+
+ return 1;
+
+ 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;
+
+#undef match
+#undef expect
+#undef expect_ident
+}
+
+static int
+xpm_load (f, img)
+ 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;
+ 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;
+ }
+
+ contents = slurp_file (SDATA (file), &size);
+ 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);
+ success_p = xpm_load_image (f, img, SDATA (data),
+ SDATA (data) + SBYTES (data));
+ }
+
+ return success_p;
+}
+
+#endif /* MAC_OS */
+
+
\f
/***********************************************************************
Color table
/* Assemble the pixel color. */
return pr | pg | pb;
}
-
+
for (p = ct_table[i]; p; p = p->next)
if (p->r == r && p->g == g && p->b == b)
break;
x_destroy_x_image (ximg);
/* X and W32 versions did it here, MAC version above. ++kfs
- img->width = width;
+ img->width = width;
img->height = height; */
UNGCPRO;
DEF_IMGLIB_FN (png_error);
static int
-init_png_functions (void)
+init_png_functions (Lisp_Object libraries)
{
HMODULE library;
- /* Ensure zlib is loaded. Try debug version first. */
- if (!LoadLibrary ("zlibd.dll")
- && !LoadLibrary ("zlib.dll"))
- return 0;
-
/* Try loading libpng under probable names. */
- if (!(library = LoadLibrary ("libpng13d.dll"))
- && !(library = LoadLibrary ("libpng13.dll"))
- && !(library = LoadLibrary ("libpng12d.dll"))
- && !(library = LoadLibrary ("libpng12.dll"))
- && !(library = LoadLibrary ("libpng.dll")))
+ if (!(library = w32_delayed_load (libraries, Qpng)))
return 0;
LOAD_IMGLIB_FN (library, png_get_io_ptr);
PNG_PTR is a pointer to the PNG control structure. Copy LENGTH
bytes from the input to DATA. */
+#ifdef _MSC_VER
+ /* Work around a problem with MinGW builds of graphics libraries
+ not honoring calling conventions. */
+#pragma optimize("g", off)
+#endif
+
static void
png_read_from_memory (png_ptr, data, length)
png_structp png_ptr;
tbr->index = tbr->index + length;
}
+#ifdef _MSC_VER
+/* Restore normal optimization, as specified on the command line. */
+#pragma optimize("", on)
+#endif
+
/* Load PNG image IMG for use on frame F. Value is non-zero if
successful. */
png_color_16 user_bg;
bzero (&user_bg, sizeof user_bg);
- user_bg.red = color.red >> PNG_BG_COLOR_SHIFT;
- user_bg.green = color.green >> PNG_BG_COLOR_SHIFT;
- user_bg.blue = color.blue >> PNG_BG_COLOR_SHIFT;
+ user_bg.red = color.red >> 8;
+ user_bg.green = color.green >> 8;
+ user_bg.blue = color.blue >> 8;
fn_png_set_background (png_ptr, &user_bg,
PNG_BACKGROUND_GAMMA_SCREEN, 0, 1.0);
x_query_color (f, &color);
bzero (&frame_background, sizeof frame_background);
- frame_background.red = color.red;
- frame_background.green = color.green;
- frame_background.blue = color.blue;
+ frame_background.red = color.red >> 8;
+ frame_background.green = color.green >> 8;
+ frame_background.blue = color.blue >> 8;
#endif /* HAVE_X_WINDOWS */
#ifdef HAVE_NTGUI
x_query_color (f, &color);
#endif
bzero (&frame_background, sizeof frame_background);
- frame_background.red = 256 * GetRValue (color);
- frame_background.green = 256 * GetGValue (color);
- frame_background.blue = 256 * GetBValue (color);
+ frame_background.red = GetRValue (color);
+ frame_background.green = GetGValue (color);
+ frame_background.blue = GetBValue (color);
#endif /* HAVE_NTGUI */
#ifdef MAC_OS
DEF_IMGLIB_FN (jpeg_resync_to_restart);
static int
-init_jpeg_functions (void)
+init_jpeg_functions (Lisp_Object libraries)
{
HMODULE library;
- if (!(library = LoadLibrary ("libjpeg.dll"))
- && !(library = LoadLibrary ("jpeg-62.dll"))
- && !(library = LoadLibrary ("jpeg.dll")))
+ if (!(library = w32_delayed_load (libraries, Qjpeg)))
return 0;
LOAD_IMGLIB_FN (library, jpeg_finish_decompress);
DEF_IMGLIB_FN (TIFFClose);
static int
-init_tiff_functions (void)
+init_tiff_functions (Lisp_Object libraries)
{
HMODULE library;
- if (!(library = LoadLibrary ("libtiff.dll")))
+ if (!(library = w32_delayed_load (libraries, Qtiff)))
return 0;
LOAD_IMGLIB_FN (library, TIFFSetErrorHandler);
DEF_IMGLIB_FN (DGifOpenFileName);
static int
-init_gif_functions (void)
+init_gif_functions (Lisp_Object libraries)
{
HMODULE library;
- if (!(library = LoadLibrary ("libungif.dll")))
+ if (!(library = w32_delayed_load (libraries, Qgif)))
return 0;
LOAD_IMGLIB_FN (library, DGifCloseFile);
TimeValue time;
struct gcpro gcpro1;
int ino;
+ CGrafPtr old_port;
+ GDHandle old_gdh;
specified_file = image_spec_value (img->spec, QCfile, NULL);
specified_data = image_spec_value (img->spec, QCdata, NULL);
if (!x_create_x_image_and_pixmap (f, width, height, 0, &ximg, &img->pixmap))
goto error;
+ GetGWorld (&old_port, &old_gdh);
SetGWorld (ximg, NULL);
bg_color.red = color.red;
bg_color.green = color.green;
bg_color.blue = color.blue;
RGBBackColor (&bg_color);
+ SetGWorld (old_port, old_gdh);
SetMovieActive (movie, TRUE);
SetMovieGWorld (movie, ximg, NULL);
SampleNumToMediaTime (media, ino + 1, &time, NULL);
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, TRUE)
+#endif /* HAVE_NTGUI */
+
+DEFUN ("init-image-library", Finit_image_library, Sinit_image_library, 2, 2, 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 `image-library-alist', which see). */)
+ (type, libraries)
+ Lisp_Object type, libraries;
+{
+ Lisp_Object tested;
+
+ /* Don't try to reload the library. */
+ tested = Fassq (type, Vimage_type_cache);
+ if (CONSP (tested))
+ return XCDR (tested);
+
+#if defined (HAVE_XPM) || defined (MAC_OS)
+ if (EQ (type, Qxpm))
+ return CHECK_LIB_AVAILABLE (&xpm_type, init_xpm_functions, libraries);
+#endif
+
+#if defined (HAVE_JPEG) || defined (MAC_OS)
+ if (EQ (type, Qjpeg))
+ return CHECK_LIB_AVAILABLE (&jpeg_type, init_jpeg_functions, libraries);
+#endif
+
+#if defined (HAVE_TIFF) || defined (MAC_OS)
+ if (EQ (type, Qtiff))
+ return CHECK_LIB_AVAILABLE (&tiff_type, init_tiff_functions, libraries);
+#endif
+
+#if defined (HAVE_GIF) || defined (MAC_OS)
+ if (EQ (type, Qgif))
+ return CHECK_LIB_AVAILABLE (&gif_type, init_gif_functions, libraries);
+#endif
+
+#if defined (HAVE_PNG) || defined (MAC_OS)
+ if (EQ (type, Qpng))
+ return CHECK_LIB_AVAILABLE (&png_type, init_png_functions, libraries);
+#endif
+
+#ifdef HAVE_GHOSTSCRIPT
+ if (EQ (type, Qpostscript))
+ return CHECK_LIB_AVAILABLE (&gs_type, init_gs_functions, libraries);
+#endif
+
+ /* If the type is not recognized, avoid testing it ever again. */
+ CACHE_IMAGE_TYPE (type, Qnil);
+ return Qnil;
+}
+
void
syms_of_image ()
{
+ /* Must be defined now becase we're going to update it below, while
+ defining the supported image types. */
+ DEFVAR_LISP ("image-types", &Vimage_types,
+ doc: /* List of potentially supported image types.
+Each element of the list is a symbol for a image type, like 'jpeg or 'png.
+To check whether it is really supported, use `image-type-available-p'. */);
+ Vimage_types = Qnil;
+
+ Vimage_type_cache = Qnil;
+ staticpro (&Vimage_type_cache);
+
QCascent = intern (":ascent");
staticpro (&QCascent);
QCmargin = intern (":margin");
staticpro (&Qedge_detection);
Qheuristic = intern ("heuristic");
staticpro (&Qheuristic);
- Qcenter = intern ("center");
- staticpro (&Qcenter);
Qpostscript = intern ("postscript");
staticpro (&Qpostscript);
#ifdef HAVE_GHOSTSCRIPT
+ ADD_IMAGE_TYPE(Qpostscript);
QCloader = intern (":loader");
staticpro (&QCloader);
QCbounding_box = intern (":bounding-box");
Qpbm = intern ("pbm");
staticpro (&Qpbm);
+ ADD_IMAGE_TYPE(Qpbm);
Qxbm = intern ("xbm");
staticpro (&Qxbm);
+ ADD_IMAGE_TYPE(Qxbm);
-#ifdef HAVE_XPM
+#if defined (HAVE_XPM) || defined (MAC_OS)
Qxpm = intern ("xpm");
staticpro (&Qxpm);
+ ADD_IMAGE_TYPE(Qxpm);
#endif
#if defined (HAVE_JPEG) || defined (MAC_OS)
Qjpeg = intern ("jpeg");
staticpro (&Qjpeg);
+ ADD_IMAGE_TYPE(Qjpeg);
#endif
#if defined (HAVE_TIFF) || defined (MAC_OS)
Qtiff = intern ("tiff");
staticpro (&Qtiff);
+ ADD_IMAGE_TYPE(Qtiff);
#endif
#if defined (HAVE_GIF) || defined (MAC_OS)
Qgif = intern ("gif");
staticpro (&Qgif);
+ ADD_IMAGE_TYPE(Qgif);
#endif
#if defined (HAVE_PNG) || defined (MAC_OS)
Qpng = intern ("png");
staticpro (&Qpng);
+ ADD_IMAGE_TYPE(Qpng);
#endif
+ defsubr (&Sinit_image_library);
defsubr (&Sclear_image_cache);
defsubr (&Simage_size);
defsubr (&Simage_mask_p);
Vimage_cache_eviction_delay = make_number (30 * 60);
}
-
-#ifdef HAVE_NTGUI
-/* Image types that rely on external libraries are loaded dynamically
- if the library is available. */
-#define IF_LIB_AVAILABLE(init_lib_fn) if (init_lib_fn())
-#else
-#define IF_LIB_AVAILABLE(init_func) /* Load unconditionally */
-#endif /* HAVE_NTGUI */
-
void
init_image ()
{
image_types = NULL;
- Vimage_types = Qnil;
-
- define_image_type (&xbm_type);
- define_image_type (&pbm_type);
-#ifdef HAVE_XPM
- IF_LIB_AVAILABLE(init_xpm_functions)
- define_image_type (&xpm_type);
-#endif
-
-#if defined (HAVE_JPEG) || defined (MAC_OS)
- IF_LIB_AVAILABLE(init_jpeg_functions)
- define_image_type (&jpeg_type);
-#endif
-
-#if defined (HAVE_TIFF) || defined (MAC_OS)
- IF_LIB_AVAILABLE(init_tiff_functions)
- define_image_type (&tiff_type);
-#endif
-
-#if defined (HAVE_GIF) || defined (MAC_OS)
- IF_LIB_AVAILABLE(init_gif_functions)
- define_image_type (&gif_type);
-#endif
-
-#if defined (HAVE_PNG) || defined (MAC_OS)
- IF_LIB_AVAILABLE(init_png_functions)
- define_image_type (&png_type);
-#endif
-
-#ifdef HAVE_GHOSTSCRIPT
- define_image_type (&gs_type);
-#endif
+ define_image_type (&xbm_type, TRUE);
+ define_image_type (&pbm_type, TRUE);
#ifdef MAC_OS
/* Animated gifs use QuickTime Movie Toolbox. So initialize it here. */