17 files changed, 2265 insertions, 0 deletions

diff --git a/w3mimg/.cvsignore b/w3mimg/.cvsignore
new file mode 100644
index 0000000..f3c7a7c
--- /dev/null
+++ b/w3mimg/.cvsignore
@@ -0,0 +1 @@
+Makefile
diff --git a/w3mimg/Makefile.in b/w3mimg/Makefile.in
new file mode 100644
index 0000000..a197352
--- /dev/null
+++ b/w3mimg/Makefile.in
@@ -0,0 +1,45 @@
+#
+# w3mimg/Makefile
+#
+@SET_MAKE@
+SHELL=@SHELL@
+srcdir = @srcdir@
+top_srcdir = @top_srcdir@
+VPATH = $(srcdir):.
+CFLAGS=$(OPTS) -I.. -I$(top_srcdir) -I$(srcdir) @CFLAGS@ @CPPFLAGS@ @DEFS@ $(IMGCFLAGS)
+AR=ar
+RANLIB=@RANLIB@
+RM=rm
+
+IMGCFLAGS=@IMGX11CFLAGS@ @IMGFBCFLAGS@
+IMGOBJS=@IMGOBJS@
+
+.PHONY: fb x11
+all: @IMGTARGETS@ w3mimg.a
+
+w3mimg.a: $(IMGOBJS)
+	$(AR) rv $@ $(IMGOBJS)
+	$(RANLIB) $@
+
+w3mimg.o: w3mimg.c
+	$(CC) $(CFLAGS) -c $<
+
+fb x11:
+	cd $@ && $(MAKE) CC="$(CC)" OPTS="$(OPTS)"
+
+clean:
+	@-$(RM) -f *.o
+	@for dir in fb x11; do \
+		(cd $$dir && $(MAKE) clean RM=$(RM)); \
+	 done
+	-$(RM) -f w3mimg.a
+
+distclean: clean
+	for subdir in fb x11; \
+	do \
+		(cd $$subdir && $(MAKE) distclean); \
+	done
+	-$(RM) -f Makefile
+
+
+#
diff --git a/w3mimg/fb/.cvsignore b/w3mimg/fb/.cvsignore
new file mode 100644
index 0000000..f3c7a7c
--- /dev/null
+++ b/w3mimg/fb/.cvsignore
@@ -0,0 +1 @@
+Makefile
diff --git a/w3mimg/fb/Makefile.in b/w3mimg/fb/Makefile.in
new file mode 100644
index 0000000..d3ee2e1
--- /dev/null
+++ b/w3mimg/fb/Makefile.in
@@ -0,0 +1,35 @@
+#
+# w3mimg/fb/Makefile
+#
+#
+@SET_MAKE@
+SHELL=@SHELL@
+srcdir = @srcdir@
+top_srcdir = @top_srcdir@
+VPATH = $(srcdir):.
+CFLAGS=$(OPTS) -I../.. -I$(top_srcdir) -I$(srcdir) @CFLAGS@ @CPPFLAGS@ @DEFS@ $(IMGCFLAGS)
+RM=rm
+
+IMGCFLAGS=@IMGFBCFLAGS@
+OBJS=fb.o fb_img.o 
+
+all: fb_w3mimg.o fb.o fb_img.o
+
+fb_w3mimg.o: fb_w3mimg.c
+	$(CC) $(CFLAGS) -c $<
+
+fb.o: fb.c
+	$(CC) $(CFLAGS) -c $<
+
+fb_img.o: fb_img.c fb_gdkpixbuf.c fb_imlib2.c
+	$(CC) $(CFLAGS) -c $<
+
+clean:
+	@-$(RM) -f *.o
+
+distclean: clean
+	-$(RM) -f Makefile
+
+#
+
+
diff --git a/w3mimg/fb/fb.c b/w3mimg/fb/fb.c
new file mode 100644
index 0000000..cd11128
--- /dev/null
+++ b/w3mimg/fb/fb.c
@@ -0,0 +1,663 @@
+/* $Id: fb.c,v 1.16 2003/07/13 16:19:10 ukai Exp $ */
+/**************************************************************************
+                fb.c 0.3 Copyright (C) 2002, hito
+ **************************************************************************/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <errno.h>
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+#include <linux/fb.h>
+
+#include "fb.h"
+
+#define FB_ENV		"FRAMEBUFFER"
+#define	FB_DEFDEV	"/dev/fb0"
+
+#define MONO_OFFSET_8BIT  0x40
+#define COLORS_MONO_8BIT  0x40
+#define MONO_MASK_8BIT    0xFC
+#define MONO_SHIFT_8BIT   2
+
+#define COLOR_OFFSET_8BIT 0x80
+#define COLORS_8BIT       0x80
+#define RED_MASK_8BIT     0xC0
+#define GREEN_MASK_8BIT   0xE0
+#define BLUE_MASK_8BIT    0xC0
+#define RED_SHIFT_8BIT    1
+#define GREEN_SHIFT_8BIT  3
+#define BLUE_SHIFT_8BIT   6
+
+#define FALSE 0
+#define TRUE  1
+
+#define IMAGE_SIZE_MAX 10000
+
+static struct fb_cmap *fb_cmap_create(struct fb_fix_screeninfo *,
+				      struct fb_var_screeninfo *);
+static void fb_cmap_destroy(struct fb_cmap *cmap);
+static int fb_fscrn_get(int fbfp, struct fb_fix_screeninfo *scinfo);
+static void *fb_mmap(int fbfp, struct fb_fix_screeninfo *scinfo);
+static int fb_munmap(void *buf, struct fb_fix_screeninfo *scinfo);
+static int fb_vscrn_get(int fbfp, struct fb_var_screeninfo *scinfo);
+static int fb_cmap_set(int fbfp, struct fb_cmap *cmap);
+static int fb_cmap_get(int fbfp, struct fb_cmap *cmap);
+static int fb_cmap_init(void);
+static int fb_get_cmap_index(int r, int g, int b);
+static unsigned long fb_get_packed_color(int r, int g, int b);
+
+static struct fb_fix_screeninfo fscinfo;
+static struct fb_var_screeninfo vscinfo;
+static struct fb_cmap *cmap = NULL, *cmap_org = NULL;
+static int is_open = FALSE;
+static int fbfp = -1;
+static size_t pixel_size = 0;
+static unsigned char *buf = NULL;
+
+int
+fb_open(void)
+{
+    char *fbdev = { FB_DEFDEV };
+
+    if (is_open == TRUE)
+	return 1;
+
+    if (getenv(FB_ENV)) {
+	fbdev = getenv(FB_ENV);
+    }
+
+    if ((fbfp = open(fbdev, O_RDWR)) == -1) {
+	fprintf(stderr, "open %s error\n", fbdev);
+	goto ERR_END;
+    }
+
+    if (fb_fscrn_get(fbfp, &fscinfo)) {
+	goto ERR_END;
+    }
+
+    if (fb_vscrn_get(fbfp, &vscinfo)) {
+	goto ERR_END;
+    }
+
+    if ((cmap = fb_cmap_create(&fscinfo, &vscinfo)) == (struct fb_cmap *)-1) {
+	goto ERR_END;
+    }
+
+    if (!(buf = fb_mmap(fbfp, &fscinfo))) {
+	fprintf(stderr, "Can't allocate memory.\n");
+	goto ERR_END;
+    }
+
+    if (fscinfo.type != FB_TYPE_PACKED_PIXELS) {
+	fprintf(stderr, "This type of framebuffer is not supported.\n");
+	goto ERR_END;
+    }
+
+    if (fscinfo.visual == FB_VISUAL_PSEUDOCOLOR && vscinfo.bits_per_pixel == 8) {
+	if (fb_cmap_get(fbfp, cmap)) {
+	    fprintf(stderr, "Can't get color map.\n");
+	    fb_cmap_destroy(cmap);
+	    cmap = NULL;
+	    goto ERR_END;
+	}
+
+	if (fb_cmap_init())
+	    goto ERR_END;
+
+	pixel_size = 1;
+    }
+    else if ((fscinfo.visual == FB_VISUAL_TRUECOLOR ||
+	      fscinfo.visual == FB_VISUAL_DIRECTCOLOR) &&
+	     (vscinfo.bits_per_pixel == 15 ||
+	      vscinfo.bits_per_pixel == 16 ||
+	      vscinfo.bits_per_pixel == 24 || vscinfo.bits_per_pixel == 32)) {
+	pixel_size = (vscinfo.bits_per_pixel + 7) / CHAR_BIT;
+    }
+    else {
+	fprintf(stderr, "This type of framebuffer is not supported.\n");
+	goto ERR_END;
+    }
+
+    is_open = TRUE;
+    return 0;
+
+  ERR_END:
+    fb_close();
+    return 1;
+}
+
+void
+fb_close(void)
+{
+    if (is_open != TRUE)
+	return;
+
+    if (cmap != NULL) {
+	fb_cmap_destroy(cmap);
+	cmap = NULL;
+    }
+    if (cmap_org != NULL) {
+	fb_cmap_set(fbfp, cmap_org);
+	fb_cmap_destroy(cmap_org);
+	cmap = NULL;
+    }
+    if (buf != NULL) {
+	fb_munmap(buf, &fscinfo);
+	buf = NULL;
+    }
+
+    if (fbfp >= 0) {
+	close(fbfp);
+    }
+
+    is_open = FALSE;
+}
+
+/***********   fb_image_*  ***********/
+
+FB_IMAGE *
+fb_image_new(int width, int height)
+{
+    FB_IMAGE *image;
+
+    if (is_open != TRUE)
+	return NULL;
+
+    if (width > IMAGE_SIZE_MAX || height > IMAGE_SIZE_MAX || width < 1
+	|| height < 1)
+	return NULL;
+
+    image = malloc(sizeof(*image));
+    if (image == NULL)
+	return NULL;
+
+    image->data = calloc(sizeof(*(image->data)), width * height * pixel_size);
+    if (image->data == NULL) {
+	free(image);
+	return NULL;
+    }
+
+    image->num = 1;
+    image->id = 0;
+    image->delay = 0;
+
+    image->width = width;
+    image->height = height;
+    image->rowstride = width * pixel_size;
+    image->len = width * height * pixel_size;
+
+    return image;
+}
+
+void
+fb_image_free(FB_IMAGE * image)
+{
+    if (image == NULL)
+	return;
+
+    if (image->data != NULL)
+	free(image->data);
+
+    free(image);
+}
+
+void
+fb_image_pset(FB_IMAGE * image, int x, int y, int r, int g, int b)
+{
+    unsigned long work;
+
+    if (image == NULL || is_open != TRUE || x >= image->width
+	|| y >= image->height)
+	return;
+
+    work = fb_get_packed_color(r, g, b);
+    memcpy(image->data + image->rowstride * y + pixel_size * x, &work,
+	   pixel_size);
+}
+
+void
+fb_image_fill(FB_IMAGE * image, int r, int g, int b)
+{
+    unsigned long work;
+    int offset;
+
+    if (image == NULL || is_open != TRUE)
+	return;
+
+    work = fb_get_packed_color(r, g, b);
+
+    for (offset = 0; offset < image->len; offset += pixel_size) {
+	memcpy(image->data + offset, &work, pixel_size);
+    }
+}
+
+int
+fb_image_draw(FB_IMAGE * image, int x, int y, int sx, int sy, int width,
+	      int height)
+{
+    int i, offset_fb, offset_img;
+
+    if (image == NULL || is_open != TRUE ||
+	sx > image->width || sy > image->height ||
+	x > fb_width() || y > fb_height())
+	return 1;
+
+    if (sx + width > image->width)
+	width = image->width - sx;
+
+    if (sy + height > image->height)
+	height = image->height - sy;
+
+    if (x + width > fb_width())
+	width = fb_width() - x;
+
+    if (y + height > fb_height())
+	height = fb_height() - y;
+
+    offset_fb = fscinfo.line_length * y + pixel_size * x;
+    offset_img = image->rowstride * sy + pixel_size * sx;
+    for (i = 0; i < height; i++) {
+	memcpy(buf + offset_fb, image->data + offset_img, pixel_size * width);
+	offset_fb += fscinfo.line_length;
+	offset_img += image->rowstride;
+    }
+
+    return 0;
+}
+
+void
+fb_image_copy(FB_IMAGE * dest, FB_IMAGE * src)
+{
+    if (dest == NULL || src == NULL)
+	return;
+
+    if (dest->len != src->len)
+	return;
+
+    memcpy(dest->data, src->data, src->len);
+}
+
+/***********   fb_frame_*  ***********/
+
+FB_IMAGE **
+fb_frame_new(int w, int h, int n)
+{
+    FB_IMAGE **frame;
+    int i, error = 0;
+
+    if (w > IMAGE_SIZE_MAX || h > IMAGE_SIZE_MAX || w < 1 || h < 1 || n < 1)
+	return NULL;
+
+    frame = malloc(sizeof(*frame) * n);
+    if (frame == NULL)
+	return NULL;
+
+    for (i = 0; i < n; i++) {
+	frame[i] = fb_image_new(w, h);
+	frame[i]->num = n;
+	frame[i]->id = i;
+	frame[i]->delay = 1000;
+	if (frame[i] == NULL)
+	    error = 1;
+    }
+
+    if (error) {
+	fb_frame_free(frame);
+	return NULL;
+    }
+
+    return frame;
+}
+
+
+void
+fb_frame_free(FB_IMAGE ** frame)
+{
+    int i, n;
+
+    if (frame == NULL)
+	return;
+
+    n = frame[0]->num;
+    for (i = 0; i < n; i++) {
+	fb_image_free(frame[i]);
+    }
+    free(frame);
+}
+
+int
+fb_width(void)
+{
+    if (is_open != TRUE)
+	return 0;
+
+    return vscinfo.xres;
+}
+
+int
+fb_height(void)
+{
+    if (is_open != TRUE)
+	return 0;
+
+    return vscinfo.yres;
+}
+
+int
+fb_clear(int x, int y, int w, int h, int r, int g, int b)
+{
+    int i, offset_fb;
+    static int rr = -1, gg = -1, bb = -1;
+    static char *tmp = NULL;
+
+    if (is_open != TRUE || x > fb_width() || y > fb_height())
+	return 1;
+
+    if (x < 0)
+	x = 0;
+    if (y < 0)
+	y = 0;
+
+    if (x + w > fb_width())
+	w = fb_width() - x;
+    if (y + h > fb_height())
+	h = fb_height() - y;
+
+    if (tmp == NULL) {
+	tmp = malloc(fscinfo.line_length);
+	if (tmp == NULL)
+	    return 1;
+    }
+    if (rr != r || gg != g || bb != b) {
+	unsigned long work;
+	int ww = fb_width();
+
+	work = fb_get_packed_color(r, g, b);
+	for (i = 0; i < ww; i++)
+	    memcpy(tmp + pixel_size * i, &work, pixel_size);
+	rr = r;
+	gg = g;
+	bb = b;
+    }
+    offset_fb = fscinfo.line_length * y + pixel_size * x;
+    for (i = 0; i < h; i++) {
+	memcpy(buf + offset_fb, tmp, pixel_size * w);
+	offset_fb += fscinfo.line_length;
+    }
+    return 0;
+}
+
+/********* static functions **************/
+static unsigned long
+fb_get_packed_color(int r, int g, int b)
+{
+    if (pixel_size == 1) {
+	return fb_get_cmap_index(r, g, b);
+    }
+    else {
+	return
+	    ((r >> (CHAR_BIT - vscinfo.red.length)) << vscinfo.red.offset) +
+	    ((g >> (CHAR_BIT - vscinfo.green.length)) << vscinfo.green.
+	     offset) +
+	    ((b >> (CHAR_BIT - vscinfo.blue.length)) << vscinfo.blue.offset);
+    }
+}
+
+static int
+fb_get_cmap_index(int r, int g, int b)
+{
+    int work;
+    if ((r & GREEN_MASK_8BIT) == (g & GREEN_MASK_8BIT)
+	&& (g & GREEN_MASK_8BIT) == (b & GREEN_MASK_8BIT)) {
+	work = (r >> MONO_SHIFT_8BIT) + MONO_OFFSET_8BIT;
+    }
+    else {
+	work = ((r & RED_MASK_8BIT) >> RED_SHIFT_8BIT)
+	    + ((g & GREEN_MASK_8BIT) >> GREEN_SHIFT_8BIT)
+	    + ((b & BLUE_MASK_8BIT) >> BLUE_SHIFT_8BIT)
+	    + COLOR_OFFSET_8BIT;
+    }
+    return work;
+}
+
+static int
+fb_cmap_init(void)
+{
+    int lp;
+
+    if (cmap == NULL)
+	return 1;
+
+    if (cmap->len < COLOR_OFFSET_8BIT + COLORS_8BIT) {
+	fprintf(stderr, "Can't allocate enough color.\n");
+	return 1;
+    }
+
+    if (cmap_org == NULL) {
+	if ((cmap_org =
+	     fb_cmap_create(&fscinfo, &vscinfo)) == (struct fb_cmap *)-1) {
+	    return 1;
+	}
+
+	if (fb_cmap_get(fbfp, cmap_org)) {
+	    fprintf(stderr, "Can't get color map.\n");
+	    fb_cmap_destroy(cmap_org);
+	    cmap_org = NULL;
+	    return 1;
+	}
+    }
+
+    cmap->start = MONO_OFFSET_8BIT;
+    cmap->len = COLORS_8BIT + COLORS_MONO_8BIT;
+
+    for (lp = 0; lp < COLORS_MONO_8BIT; lp++) {
+	int c;
+	c = (lp << (MONO_SHIFT_8BIT + 8)) +
+	    (lp ? (0xFFFF - (MONO_MASK_8BIT << 8)) : 0);
+	if (cmap->red)
+	    *(cmap->red + lp) = c;
+	if (cmap->green)
+	    *(cmap->green + lp) = c;
+	if (cmap->blue)
+	    *(cmap->blue + lp) = c;
+    }
+
+    for (lp = 0; lp < COLORS_8BIT; lp++) {
+	int r, g, b;
+	r = lp & (RED_MASK_8BIT >> RED_SHIFT_8BIT);
+	g = lp & (GREEN_MASK_8BIT >> GREEN_SHIFT_8BIT);
+	b = lp & (BLUE_MASK_8BIT >> BLUE_SHIFT_8BIT);
+	if (cmap->red)
+	    *(cmap->red + lp + COLORS_MONO_8BIT)
+		= (r << (RED_SHIFT_8BIT + 8)) +
+		(r ? (0xFFFF - (RED_MASK_8BIT << 8)) : 0);
+	if (cmap->green)
+	    *(cmap->green + lp + COLORS_MONO_8BIT)
+		= (g << (GREEN_SHIFT_8BIT + 8)) +
+		(g ? (0xFFFF - (GREEN_MASK_8BIT << 8)) : 0);
+	if (cmap->blue)
+	    *(cmap->blue + lp + COLORS_MONO_8BIT)
+		= (b << (BLUE_SHIFT_8BIT + 8)) +
+		(b ? (0xFFFF - (BLUE_MASK_8BIT << 8)) : 0);
+    }
+
+    if (fb_cmap_set(fbfp, cmap)) {
+	fb_cmap_destroy(cmap);
+	cmap = NULL;
+	fprintf(stderr, "Can't set color map.\n");
+	return 1;
+    }
+    return 0;
+}
+
+/*
+ * (struct fb_cmap) Device independent colormap information.
+ * 
+ * fb_cmap_create()     create colormap information
+ * fb_cmap_destroy()    destroy colormap information
+ * fb_cmap_get()        get information
+ * fb_cmap_set()        set information
+ */
+
+#define	LUT_MAX		(256)
+
+static struct fb_cmap *
+fb_cmap_create(struct fb_fix_screeninfo *fscinfo,
+	       struct fb_var_screeninfo *vscinfo)
+{
+    struct fb_cmap *cmap;
+    int cmaplen = LUT_MAX;
+
+    /* check the existence of colormap */
+    if (fscinfo->visual == FB_VISUAL_MONO01 ||
+	fscinfo->visual == FB_VISUAL_MONO10 ||
+	fscinfo->visual == FB_VISUAL_TRUECOLOR)
+	return NULL;
+
+    cmap = (struct fb_cmap *)malloc(sizeof(struct fb_cmap));
+    if (!cmap) {
+	perror("cmap malloc error\n");
+	return (struct fb_cmap *)-1;
+    }
+    memset(cmap, 0, sizeof(struct fb_cmap));
+
+    /* Allocates memory for a colormap */
+    if (vscinfo->red.length) {
+	cmap->red = (__u16 *) malloc(sizeof(__u16) * cmaplen);
+	if (!cmap->red) {
+	    perror("red lut malloc error\n");
+	    return (struct fb_cmap *)-1;
+	}
+    }
+    if (vscinfo->green.length) {
+	cmap->green = (__u16 *) malloc(sizeof(__u16) * cmaplen);
+	if (!cmap->green) {
+	    if (vscinfo->red.length)
+		free(cmap->red);
+	    perror("green lut malloc error\n");
+	    return (struct fb_cmap *)-1;
+	}
+    }
+    if (vscinfo->blue.length) {
+	cmap->blue = (__u16 *) malloc(sizeof(__u16) * cmaplen);
+	if (!cmap->blue) {
+	    if (vscinfo->red.length)
+		free(cmap->red);
+	    if (vscinfo->green.length)
+		free(cmap->green);
+	    perror("blue lut malloc error\n");
+	    return (struct fb_cmap *)-1;
+	}
+    }
+    if (vscinfo->transp.length) {
+	cmap->transp = (__u16 *) malloc(sizeof(__u16) * cmaplen);
+	if (!cmap->transp) {
+	    if (vscinfo->red.length)
+		free(cmap->red);
+	    if (vscinfo->green.length)
+		free(cmap->green);
+	    if (vscinfo->blue.length)
+		free(cmap->blue);
+	    perror("transp lut malloc error\n");
+	    return (struct fb_cmap *)-1;
+	}
+    }
+    cmap->len = cmaplen;
+    return cmap;
+}
+
+static void
+fb_cmap_destroy(struct fb_cmap *cmap)
+{
+    if (cmap->red)
+	free(cmap->red);
+    if (cmap->green)
+	free(cmap->green);
+    if (cmap->blue)
+	free(cmap->blue);
+    if (cmap->transp)
+	free(cmap->transp);
+    free(cmap);
+}
+
+static int
+fb_cmap_get(int fbfp, struct fb_cmap *cmap)
+{
+    if (ioctl(fbfp, FBIOGETCMAP, cmap)) {
+	perror("ioctl FBIOGETCMAP error\n");
+	return -1;
+    }
+    return 0;
+}
+
+static int
+fb_cmap_set(int fbfp, struct fb_cmap *cmap)
+{
+    if (ioctl(fbfp, FBIOPUTCMAP, cmap)) {
+	perror("ioctl FBIOPUTCMAP error\n");
+	return -1;
+    }
+    return 0;
+}
+
+/*
+ * access to framebuffer
+ * 
+ * fb_mmap()            map from framebuffer into memory
+ * fb_munmap()          deletes the mappings
+ */
+
+static void *
+fb_mmap(int fbfp, struct fb_fix_screeninfo *scinfo)
+{
+    void *buf;
+    if ((buf = (unsigned char *)
+	 mmap(NULL, scinfo->smem_len, PROT_READ | PROT_WRITE, MAP_SHARED, fbfp,
+	      (off_t) 0))
+	== MAP_FAILED) {
+	perror("mmap error");
+	return NULL;
+    }
+    return buf;
+}
+
+static int
+fb_munmap(void *buf, struct fb_fix_screeninfo *scinfo)
+{
+    return munmap(buf, scinfo->smem_len);
+}
+
+/*
+ * (struct fb_fix_screeninfo) device independent fixed information
+ * 
+ * fb_fscrn_get()               get information
+ */
+static int
+fb_fscrn_get(int fbfp, struct fb_fix_screeninfo *scinfo)
+{
+    if (ioctl(fbfp, FBIOGET_FSCREENINFO, scinfo)) {
+	perror("ioctl FBIOGET_FSCREENINFO error\n");
+	return -1;
+    }
+    return 0;
+}
+
+/*
+ * (struct fb_var_screeninfo) device independent variable information
+ * 
+ * fb_vscrn_get()               get information
+ */
+static int
+fb_vscrn_get(int fbfp, struct fb_var_screeninfo *scinfo)
+{
+    if (ioctl(fbfp, FBIOGET_VSCREENINFO, scinfo)) {
+	perror("ioctl FBIOGET_VSCREENINFO error\n");
+	return -1;
+    }
+    return 0;
+}
diff --git a/w3mimg/fb/fb.h b/w3mimg/fb/fb.h
new file mode 100644
index 0000000..1138bb0
--- /dev/null
+++ b/w3mimg/fb/fb.h
@@ -0,0 +1,34 @@
+/* $Id: fb.h,v 1.7 2003/07/07 15:48:17 ukai Exp $ */
+#ifndef fb_header
+#define fb_header
+#include <linux/fb.h>
+
+typedef struct {
+    int num;
+    int id;
+    int delay;
+    int width;
+    int height;
+    int rowstride;
+    int len;
+    unsigned char *data;
+} FB_IMAGE;
+
+FB_IMAGE *fb_image_new(int width, int height);
+void fb_image_pset(FB_IMAGE * image, int x, int y, int r, int g, int b);
+void fb_image_fill(FB_IMAGE * image, int r, int g, int b);
+int fb_image_draw(FB_IMAGE * image, int x, int y, int sx, int sy, int width,
+		  int height);
+void fb_image_free(FB_IMAGE * image);
+void fb_image_copy(FB_IMAGE * dest, FB_IMAGE * src);
+
+FB_IMAGE **fb_frame_new(int w, int h, int num);
+void fb_frame_free(FB_IMAGE ** frame);
+
+int fb_open(void);
+void fb_close(void);
+int fb_width(void);
+int fb_height(void);
+int fb_clear(int x, int y, int w, int h, int r, int g, int b);
+
+#endif
diff --git a/w3mimg/fb/fb_gdkpixbuf.c b/w3mimg/fb/fb_gdkpixbuf.c
new file mode 100644
index 0000000..e615da6
--- /dev/null
+++ b/w3mimg/fb/fb_gdkpixbuf.c
@@ -0,0 +1,209 @@
+/* $Id: fb_gdkpixbuf.c,v 1.16 2003/06/13 15:03:35 ukai Exp $ */
+/**************************************************************************
+                fb_gdkpixbuf.c 0.3 Copyright (C) 2002, hito
+ **************************************************************************/
+
+#include <gdk-pixbuf/gdk-pixbuf.h>
+#include "fb.h"
+#include "fb_img.h"
+
+static void draw(FB_IMAGE * img, int bg, int x, int y, int w, int h,
+		 GdkPixbuf * pixbuf);
+static GdkPixbuf *resize_image(GdkPixbuf * pixbuf, int width, int height);
+
+static void
+get_animation_size(GdkPixbufAnimation * animation, int *w, int *h, int *delay)
+{
+    GList *frames;
+    int iw, ih, n, i, d = -1;
+
+    frames = gdk_pixbuf_animation_get_frames(animation);
+    n = gdk_pixbuf_animation_get_num_frames(animation);
+    *w = gdk_pixbuf_animation_get_width(animation);
+    *h = gdk_pixbuf_animation_get_height(animation);
+    for (i = 0; i < n; i++) {
+	GdkPixbufFrame *frame;
+	GdkPixbuf *pixbuf;
+	int tmp;
+
+	frame = (GdkPixbufFrame *) g_list_nth_data(frames, i);
+	tmp = gdk_pixbuf_frame_get_delay_time(frame);
+	if (tmp > d)
+	    d = tmp;
+	pixbuf = gdk_pixbuf_frame_get_pixbuf(frame);
+	iw = gdk_pixbuf_frame_get_x_offset(frame)
+	    + gdk_pixbuf_get_width(pixbuf);
+	ih = gdk_pixbuf_frame_get_y_offset(frame)
+	    + gdk_pixbuf_get_height(pixbuf);
+	if (iw > *w)
+	    *w = iw;
+	if (ih > *h)
+	    *h = ih;
+    }
+    if (delay)
+	*delay = d;
+}
+
+int
+get_image_size(char *filename, int *w, int *h)
+{
+    GdkPixbufAnimation *animation;
+    if (filename == NULL)
+	return 1;
+    animation = gdk_pixbuf_animation_new_from_file(filename);
+    if (animation == NULL)
+	return 1;
+    get_animation_size(animation, w, h, NULL);
+    gdk_pixbuf_animation_unref(animation);
+    return 0;
+}
+
+FB_IMAGE **
+fb_image_load(char *filename, int w, int h, int max_anim)
+{
+    GdkPixbufAnimation *animation;
+    GList *frames;
+    double ratio_w, ratio_h;
+    int n, i, j, fw, fh, frame_num, delay;
+    FB_IMAGE **fb_frame = NULL, *tmp_image = NULL;
+
+    if (filename == NULL)
+	return NULL;
+    animation = gdk_pixbuf_animation_new_from_file(filename);
+    if (animation == NULL)
+	return NULL;
+    frames = gdk_pixbuf_animation_get_frames(animation);
+    get_animation_size(animation, &fw, &fh, &delay);
+    frame_num = n = gdk_pixbuf_animation_get_num_frames(animation);
+    if (delay <= 0)
+	max_anim = -1;
+    if (max_anim < 0) {
+	frame_num = (-max_anim > n) ? n : -max_anim;
+    }
+    else if (max_anim > 0) {
+	frame_num = n = (max_anim > n) ? n : max_anim;
+    }
+    if (w < 1 || h < 1) {
+	w = fw;
+	h = fh;
+	ratio_w = ratio_h = 1;
+    }
+    else {
+	ratio_w = 1.0 * w / fw;
+	ratio_h = 1.0 * h / fh;
+    }
+
+    fb_frame = fb_frame_new(w, h, frame_num);
+    if (fb_frame == NULL)
+	goto END;
+
+    tmp_image = fb_image_new(w, h);
+    if (tmp_image == NULL) {
+	fb_frame_free(fb_frame);
+	fb_frame = NULL;
+	goto END;
+    }
+
+    if (bg_r != 0 || bg_g != 0 || bg_b != 0) {
+	fb_image_fill(tmp_image, bg_r, bg_g, bg_b);
+    }
+
+    for (j = 0; j < n; j++) {
+	GdkPixbufFrame *frame;
+	GdkPixbuf *org_pixbuf, *pixbuf;
+	int width, height, ofstx, ofsty;
+
+	if (max_anim < 0) {
+	    i = (j - n + frame_num > 0) ? (j - n + frame_num) : 0;
+	}
+	else {
+	    i = j;
+	}
+	frame = (GdkPixbufFrame *) g_list_nth_data(frames, j);
+	org_pixbuf = gdk_pixbuf_frame_get_pixbuf(frame);
+	ofstx = gdk_pixbuf_frame_get_x_offset(frame);
+	ofsty = gdk_pixbuf_frame_get_y_offset(frame);
+	width = gdk_pixbuf_get_width(org_pixbuf);
+	height = gdk_pixbuf_get_height(org_pixbuf);
+	if (ofstx == 0 && ofsty == 0 && width == fw && height == fh) {
+	    pixbuf = resize_image(org_pixbuf, w, h);
+	}
+	else {
+	    pixbuf =
+		resize_image(org_pixbuf, width * ratio_w, height * ratio_h);
+	    ofstx *= ratio_w;
+	    ofsty *= ratio_h;
+	}
+	width = gdk_pixbuf_get_width(pixbuf);
+	height = gdk_pixbuf_get_height(pixbuf);
+
+	fb_frame[i]->delay = gdk_pixbuf_frame_get_delay_time(frame);
+	fb_image_copy(fb_frame[i], tmp_image);
+	draw(fb_frame[i], !i, ofstx, ofsty, width, height, pixbuf);
+
+	switch (gdk_pixbuf_frame_get_action(frame)) {
+	case GDK_PIXBUF_FRAME_RETAIN:
+	    fb_image_copy(tmp_image, fb_frame[i]);
+	    break;
+	case GDK_PIXBUF_FRAME_DISPOSE:
+	    break;
+	case GDK_PIXBUF_FRAME_REVERT:
+	    fb_image_copy(tmp_image, fb_frame[0]);
+	    break;
+	default:
+	    fb_image_copy(tmp_image, fb_frame[0]);
+	}
+
+	if (org_pixbuf != pixbuf)
+	    gdk_pixbuf_finalize(pixbuf);
+    }
+  END:
+    if (tmp_image)
+	fb_image_free(tmp_image);
+    gdk_pixbuf_animation_unref(animation);
+    return fb_frame;
+}
+static void
+draw(FB_IMAGE * img, int bg, int x, int y, int w, int h, GdkPixbuf * pixbuf)
+{
+    int i, j, r, g, b, offset, bpp, rowstride;
+    guchar *pixels;
+    gboolean alpha;
+    if (img == NULL || pixbuf == NULL)
+	return;
+    rowstride = gdk_pixbuf_get_rowstride(pixbuf);
+    pixels = gdk_pixbuf_get_pixels(pixbuf);
+    alpha = gdk_pixbuf_get_has_alpha(pixbuf);
+    bpp = rowstride / w;
+    for (j = 0; j < h; j++) {
+	offset = j * rowstride;
+	for (i = 0; i < w; i++, offset += bpp) {
+	    r = pixels[offset];
+	    g = pixels[offset + 1];
+	    b = pixels[offset + 2];
+	    if (!alpha || pixels[offset + 3] != 0) {
+		fb_image_pset(img, i + x, j + y, r, g, b);
+	    }
+	}
+    }
+    return;
+}
+static GdkPixbuf *
+resize_image(GdkPixbuf * pixbuf, int width, int height)
+{
+    GdkPixbuf *resized_pixbuf;
+    int w, h;
+    if (pixbuf == NULL)
+	return NULL;
+    w = gdk_pixbuf_get_width(pixbuf);
+    h = gdk_pixbuf_get_height(pixbuf);
+    if (width < 1 || height < 1)
+	return pixbuf;
+    if (w == width && h == height)
+	return pixbuf;
+    resized_pixbuf =
+	gdk_pixbuf_scale_simple(pixbuf, width, height, GDK_INTERP_HYPER);
+    if (resized_pixbuf == NULL)
+	return NULL;
+    return resized_pixbuf;
+}
diff --git a/w3mimg/fb/fb_img.c b/w3mimg/fb/fb_img.c
new file mode 100644
index 0000000..3547a00
--- /dev/null
+++ b/w3mimg/fb/fb_img.c
@@ -0,0 +1,32 @@
+/* $Id: fb_img.c,v 1.6 2003/07/07 15:48:17 ukai Exp $ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include "config.h"
+#include "fb.h"
+#include "fb_img.h"
+
+static int bg_r = 0, bg_g = 0, bg_b = 0;
+
+#if defined(USE_IMLIB2)
+#include "w3mimg/fb/fb_imlib2.c"
+#elif defined(USE_GDKPIXBUF)
+#include "w3mimg/fb/fb_gdkpixbuf.c"
+#else
+#error no Imlib2 and GdkPixbuf support
+#endif
+
+void
+fb_image_set_bg(int r, int g, int b)
+{
+    bg_r = r;
+    bg_g = g;
+    bg_b = b;
+}
+
+int
+fb_image_clear(int x, int y, int w, int h)
+{
+    return fb_clear(x, y, w, h, bg_r, bg_g, bg_b);
+}
diff --git a/w3mimg/fb/fb_img.h b/w3mimg/fb/fb_img.h
new file mode 100644
index 0000000..cd1301b
--- /dev/null
+++ b/w3mimg/fb/fb_img.h
@@ -0,0 +1,11 @@
+/* $Id: fb_img.h,v 1.8 2003/07/09 15:07:11 ukai Exp $ */
+#ifndef fb_img_header
+#define fb_img_header
+#include "fb.h"
+
+FB_IMAGE **fb_image_load(char *filename, int w, int h, int n);
+void fb_image_set_bg(int r, int g, int b);
+int fb_image_clear(int x, int y, int w, int h);
+int get_image_size(char *filename, int *w, int *h);
+
+#endif
diff --git a/w3mimg/fb/fb_imlib2.c b/w3mimg/fb/fb_imlib2.c
new file mode 100644
index 0000000..972f06e
--- /dev/null
+++ b/w3mimg/fb/fb_imlib2.c
@@ -0,0 +1,126 @@
+/* $Id: fb_imlib2.c,v 1.9 2003/03/24 15:45:59 ukai Exp $ */
+/**************************************************************************
+                fb_imlib2.c 0.3 Copyright (C) 2002, hito
+ **************************************************************************/
+
+#include <X11/Xlib.h>
+#include <Imlib2.h>
+#include "fb.h"
+#include "fb_img.h"
+
+static void draw(FB_IMAGE * img, Imlib_Image image);
+static Imlib_Image resize_image(Imlib_Image image, int width, int height);
+
+int
+get_image_size(char *filename, int *w, int *h)
+{
+    Imlib_Image image;
+
+    if (filename == NULL)
+	return 1;
+
+    image = imlib_load_image(filename);
+    if (image == NULL)
+	return 1;
+
+    imlib_context_set_image(image);
+    *w = imlib_image_get_width();
+    *h = imlib_image_get_height();
+    imlib_free_image();
+
+    return 0;
+}
+
+FB_IMAGE **
+fb_image_load(char *filename, int w, int h, int n)
+{
+    Imlib_Image image;
+    FB_IMAGE **frame;
+
+    if (filename == NULL)
+	return NULL;
+
+    image = imlib_load_image(filename);
+    if (image == NULL)
+	return NULL;
+
+    image = resize_image(image, w, h);
+    if (image == NULL)
+	return NULL;
+
+    imlib_context_set_image(image);
+
+    w = imlib_image_get_width();
+    h = imlib_image_get_height();
+
+    frame = fb_frame_new(w, h, 1);
+
+    if (frame == NULL) {
+	imlib_free_image();
+	return NULL;
+    }
+
+    draw(frame[0], image);
+
+    imlib_free_image();
+
+    return frame;
+}
+
+static void
+draw(FB_IMAGE * img, Imlib_Image image)
+{
+    int i, j, r, g, b, a = 0, offset;
+    DATA32 *data;
+
+    if (img == NULL)
+	return;
+
+    imlib_context_set_image(image);
+    data = imlib_image_get_data_for_reading_only();
+
+    for (j = 0; j < img->height; j++) {
+	offset = img->width * j;
+	for (i = 0; i < img->width; i++) {
+	    a = (data[offset + i] >> 24) & 0x000000ff;
+	    r = (data[offset + i] >> 16) & 0x000000ff;
+	    g = (data[offset + i] >> 8) & 0x000000ff;
+	    b = (data[offset + i]) & 0x000000ff;
+
+	    if (a == 0) {
+		fb_image_pset(img, i, j, bg_r, bg_g, bg_b);
+	    }
+	    else {
+		fb_image_pset(img, i, j, r, g, b);
+	    }
+	}
+    }
+    return;
+}
+
+static Imlib_Image
+resize_image(Imlib_Image image, int width, int height)
+{
+    Imlib_Image resized_image;
+    int w, h;
+
+    if (image == NULL)
+	return NULL;
+
+    imlib_context_set_image(image);
+    w = imlib_image_get_width();
+    h = imlib_image_get_height();
+
+    if (width < 1 || height < 1)
+	return image;
+
+    if (w == width && h == height)
+	return image;
+
+    resized_image =
+	imlib_create_cropped_scaled_image(0, 0, w, h, width, height);
+
+    imlib_free_image();
+
+    return resized_image;
+}
diff --git a/w3mimg/fb/fb_w3mimg.c b/w3mimg/fb/fb_w3mimg.c
new file mode 100644
index 0000000..b67bad1
--- /dev/null
+++ b/w3mimg/fb/fb_w3mimg.c
@@ -0,0 +1,202 @@
+/* $Id: fb_w3mimg.c,v 1.13 2003/08/29 15:06:52 ukai Exp $ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <ctype.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+#include "w3mimg/fb/fb.h"
+#include "w3mimg/fb/fb_img.h"
+#include "w3mimg/w3mimg.h"
+
+static int
+w3mfb_init(w3mimg_op * self)
+{
+    if (self == NULL)
+	return 0;
+    return 1;
+}
+
+static int
+w3mfb_finish(w3mimg_op * self)
+{
+    if (self == NULL)
+	return 0;
+    return 1;
+}
+
+static int
+w3mfb_active(w3mimg_op * self)
+{
+    if (self == NULL)
+	return 0;
+    return 1;
+}
+
+static void
+w3mfb_set_background(w3mimg_op * self, char *background)
+{
+    if (self == NULL)
+	return;
+    if (background) {
+	int r, g, b;
+	if (sscanf(background, "#%02x%02x%02x", &r, &g, &b) == 3)
+	    fb_image_set_bg(r, g, b);
+    }
+}
+
+static void
+w3mfb_sync(w3mimg_op * self)
+{
+    return;
+}
+
+static void
+w3mfb_close(w3mimg_op * self)
+{
+    fb_close();
+}
+
+static int
+w3mfb_clear(w3mimg_op * self, int x, int y, int w, int h)
+{
+    if (self == NULL)
+	return 0;
+    fb_image_clear(x, y, w, h);
+    return 1;
+}
+
+static int
+w3mfb_load_image(w3mimg_op * self, W3MImage * img, char *fname, int w, int h)
+{
+    FB_IMAGE **im;
+
+    if (self == NULL)
+	return 0;
+    im = fb_image_load(fname, w, h, self->max_anim);
+    if (!im)
+	return 0;
+    img->pixmap = im;
+    img->width = im[0]->width;
+    img->height = im[0]->height;
+    return 1;
+}
+
+static int
+w3mfb_show_image(w3mimg_op * self, W3MImage * img, int sx, int sy,
+		 int sw, int sh, int x, int y)
+{
+    int i;
+    FB_IMAGE **frame;
+#define WAIT_CNT 4
+
+    if (self == NULL)
+	return 0;
+
+    if (img->pixmap == NULL)
+	return 0;
+
+    frame = (FB_IMAGE **) img->pixmap;
+    i = frame[0]->id;
+    fb_image_draw(frame[i],
+		  x + self->offset_x, y + self->offset_y,
+		  sx, sy, (sw ? sw : img->width), (sh ? sh : img->height));
+    if (frame[0]->num > 1) {
+	if (frame[1]->id > WAIT_CNT) {
+	    frame[1]->id = 0;
+	    if (i < frame[0]->num - 1)
+		frame[0]->id = i + 1;
+	    else
+		frame[0]->id = 0;
+	}
+	frame[1]->id += 1;
+    }
+    return 1;
+}
+
+static void
+w3mfb_free_image(w3mimg_op * self, W3MImage * img)
+{
+    if (self == NULL)
+	return;
+    if (img && img->pixmap) {
+	fb_frame_free((FB_IMAGE **) img->pixmap);
+	img->pixmap = NULL;
+	img->width = 0;
+	img->height = 0;
+    }
+}
+
+static int
+w3mfb_get_image_size(w3mimg_op * self, W3MImage * img,
+		     char *fname, int *w, int *h)
+{
+    int i;
+
+    if (self == NULL)
+	return 0;
+    i = get_image_size(fname, w, h);
+    if (i)
+	return 0;
+    return 1;
+}
+
+#ifdef W3MIMGDISPLAY_SETUID
+static int
+check_tty_console(char *tty)
+{
+    if (tty == NULL || *tty == '\0')
+	return 0;
+    if (strncmp(tty, "/dev/", 5) == 0)
+	tty += 5;
+    if (strncmp(tty, "tty", 3) == 0 && isdigit(*(tty + 3)))
+	return 1;
+    if (strncmp(tty, "vc/", 3) == 0 && isdigit(*(tty + 3)))
+	return 1;
+    return 0;
+}
+#else
+#define check_tty_console(tty)	1
+#endif
+
+w3mimg_op *
+w3mimg_fbopen()
+{
+    w3mimg_op *wop = NULL;
+    wop = (w3mimg_op *) malloc(sizeof(w3mimg_op));
+    if (wop == NULL)
+	return NULL;
+    memset(wop, 0, sizeof(w3mimg_op));
+
+    if (!check_tty_console(getenv("W3M_TTY")) && strcmp("jfbterm", getenv("TERM")) != 0) {
+	fprintf(stderr, "w3mimgdisplay/fb: tty is not console\n");
+	goto error;
+    }
+
+    if (fb_open())
+	goto error;
+
+    wop->width = fb_width();
+    wop->height = fb_height();
+
+    wop->init = w3mfb_init;
+    wop->finish = w3mfb_finish;
+    wop->active = w3mfb_active;
+    wop->set_background = w3mfb_set_background;
+    wop->sync = w3mfb_sync;
+    wop->close = w3mfb_close;
+    wop->clear = w3mfb_clear;
+
+    wop->load_image = w3mfb_load_image;
+    wop->show_image = w3mfb_show_image;
+    wop->free_image = w3mfb_free_image;
+    wop->get_image_size = w3mfb_get_image_size;
+
+    return wop;
+  error:
+    free(wop);
+    return NULL;
+}
diff --git a/w3mimg/fb/readme.txt b/w3mimg/fb/readme.txt
new file mode 100644
index 0000000..92e71a5
--- /dev/null
+++ b/w3mimg/fb/readme.txt
@@ -0,0 +1,73 @@
+Source: http://homepage3.nifty.com/slokar/fb/
+original readme.txt
+
+■提供するもの
+  ・w3mimgdisplayfb w3mimgdisplay (ほぼ)互換の framebuffer 用画像ビューア
+  ・w3mimgsizefb    w3mimgsize 互換の画像サイズ報告プログラム
+
+■必要なもの
+  ・GdkPixbuf or Imlib2
+  ・TRUE-COLOR の framebuffer を利用できる環境
+
+■コンパイル
+  ・Makefile の CFLAGS, LDFLAGS を Imlib2, GdkPixbuf のどちらか利用する
+    方を有効にしてから make してださい。
+
+■利用法
+  ・w3mimgdisplay, w3mimgsize と同様
+
+■制限等
+  ・framebuffer は 15,16,24,32bpp PACKED-PIXELS TRUE-COLOR
+    にしか対応していません。
+  ・現在 w3mimgdisplayfb は -bg オプションを使用しない場合の背景色は黒
+    (#000000)と仮定しています。
+
+■開発環境
+  ・ w3m version w3m/0.3+cvs-1.353-m17n-20020316
+  ・ linux 2.4.18 (Vine Linux 2.5)
+  ・ gcc 2.95.3
+  ・ GdkPixbuf 0.16.0
+  ・ Imlib2 1.0.6
+  ・ $ dmesg |grep vesafb
+     vesafb: framebuffer at 0xe2000000, mapped to 0xc880d000, size 8192k
+     vesafb: mode is 1024x768x16, linelength=2048, pages=4
+     vesafb: protected mode interface info at c000:4785
+     vesafb: scrolling: redraw
+     vesafb: directcolor: size=0:5:6:5, shift=0:11:5:0
+  ・ ビデオカード
+    VGA compatible controller: ATI Technologies Inc 3D Rage Pro AGP 1X/2X (rev 92).
+      Master Capable.  Latency=64.  Min Gnt=8.
+      Non-prefetchable 32 bit memory at 0xe2000000 [0xe2ffffff].
+      I/O at 0xd800 [0xd8ff].
+      Non-prefetchable 32 bit memory at 0xe1800000 [0xe1800fff].
+
+■その他
+  ・w3mimgsizefb, w3mimgdisplayfb は坂本浩則さんの w3mimgsize,
+    w3mimgdisplay をもとにしています(というかほとんどそのままです)。
+  ・framebuffer 描画関係のコードは、やまさきしんじさんのサンプルプログ
+    ラムをもとにしています(というかほとんどそのままです)。
+  ・まだ開発途上であり、動作確認も不十分です。使用される際はご自身の責任
+    でお願いします。
+  ・この配布物に含まれるコードは変更済み BSD ライセンスに従うものとしま
+    す。詳細は license.txt を参照してください。
+
+■関連 URI
+   ・ W3M Homepage  http://w3m.sourceforge.net/
+   ・ w3m-img http://www2u.biglobe.ne.jp/~hsaka/w3m/index-ja.html
+   ・ Linux Kernel Hack Japan http://www.sainet.or.jp/~yamasaki/
+   ・ Imlib2 http://www.enlightenment.org/pages/main.html
+   ・ GdkPixbuf http://developer.gnome.org/arch/imaging/gdkpixbuf.html
+
+■履歴
+  ・2002/07/05 開発開始
+  ・2002/07/07 ImageMagick 版動作確認
+  ・2002/07/10 GdkPixbuf 版動作確認
+  ・2002/07/11 Imlib2 版動作確認
+  ・2002/07/15 Version 0.1
+               公開
+  ・2002/07/22 Version 0.2
+               描画の高速化
+
+■連絡先
+  ZXB01226@nifty.com
+  http://homepage3.nifty.com/slokar/
diff --git a/w3mimg/w3mimg.c b/w3mimg/w3mimg.c
new file mode 100644
index 0000000..144a2d9
--- /dev/null
+++ b/w3mimg/w3mimg.c
@@ -0,0 +1,34 @@
+/* $Id: w3mimg.c,v 1.5 2002/11/06 03:50:49 ukai Exp $ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include "w3mimg/w3mimg.h"
+
+w3mimg_op *
+w3mimg_open()
+{
+    w3mimg_op *w_op = NULL;
+#ifdef W3MIMGDISPLAY_SETUID
+    uid_t runner_uid = getuid();
+    uid_t owner_uid = geteuid();
+#endif
+#ifdef USE_W3MIMG_X11
+#ifdef W3MIMGDISPLAY_SETUID
+    /* run in user privileges */
+    setreuid(owner_uid, runner_uid);
+#endif
+    if (w_op == NULL)
+	w_op = w3mimg_x11open();
+#ifdef W3MIMGDISPLAY_SETUID
+    setreuid(runner_uid, owner_uid);
+#endif
+#endif
+#ifdef USE_W3MIMG_FB
+    /* run in setuid privileges */
+    if (w_op == NULL)
+	w_op = w3mimg_fbopen();
+#endif
+    return w_op;
+}
diff --git a/w3mimg/w3mimg.h b/w3mimg/w3mimg.h
new file mode 100644
index 0000000..3807ca5
--- /dev/null
+++ b/w3mimg/w3mimg.h
@@ -0,0 +1,46 @@
+/* $Id: w3mimg.h,v 1.8 2003/07/13 16:19:10 ukai Exp $ */
+#include "config.h"
+
+#ifdef USE_W3MIMG_FB
+#include "w3mimg/fb/fb.h"
+#include "w3mimg/fb/fb_img.h"
+#endif
+
+typedef struct {
+    void *pixmap;		/* driver specific */
+    int width;
+    int height;
+} W3MImage;
+
+typedef struct _w3mimg_op {
+    void *priv;			/* driver specific data */
+    int width, height;		/* window width, height */
+    int offset_x, offset_y;	/* offset */
+    int clear_margin;
+    int max_anim;
+
+    int (*init) (struct _w3mimg_op * self);
+    int (*finish) (struct _w3mimg_op * self);
+    int (*active) (struct _w3mimg_op * self);
+    void (*set_background) (struct _w3mimg_op * self, char *background);
+    void (*sync) (struct _w3mimg_op * self);
+    void (*close) (struct _w3mimg_op * self);
+
+    int (*load_image) (struct _w3mimg_op * self, W3MImage * img, char *fname,
+		       int w, int h);
+    int (*show_image) (struct _w3mimg_op * self, W3MImage * img,
+		       int sx, int sy, int sw, int sh, int x, int y);
+    void (*free_image) (struct _w3mimg_op * self, W3MImage * img);
+    int (*get_image_size) (struct _w3mimg_op * self, W3MImage * img,
+			   char *fname, int *w, int *h);
+    int (*clear) (struct _w3mimg_op * self, int x, int y, int w, int h);
+} w3mimg_op;
+
+#ifdef USE_W3MIMG_X11
+extern w3mimg_op *w3mimg_x11open();
+#endif
+#ifdef USE_W3MIMG_FB
+extern w3mimg_op *w3mimg_fbopen();
+#endif
+
+extern w3mimg_op *w3mimg_open();
diff --git a/w3mimg/x11/.cvsignore b/w3mimg/x11/.cvsignore
new file mode 100644
index 0000000..f3c7a7c
--- /dev/null
+++ b/w3mimg/x11/.cvsignore
@@ -0,0 +1 @@
+Makefile
diff --git a/w3mimg/x11/Makefile.in b/w3mimg/x11/Makefile.in
new file mode 100644
index 0000000..fb30e3a
--- /dev/null
+++ b/w3mimg/x11/Makefile.in
@@ -0,0 +1,29 @@
+#
+# w3mimg/x11/Makefile
+#
+#
+@SET_MAKE@
+SHELL=@SHELL@
+srcdir = @srcdir@
+top_srcdir = @top_srcdir@
+VPATH = $(srcdir):.
+CFLAGS=$(OPTS) -I../.. -I$(top_srcdir) -I$(srcdir) @CFLAGS@ @CPPFLAGS@ @DEFS@ $(IMGCFLAGS)
+RM=rm
+
+IMGCFLAGS=@IMGX11CFLAGS@
+OBJS=x11_w3mimg.o
+
+all: x11_w3mimg.o
+
+x11_w3mimg.o: x11_w3mimg.c
+	$(CC) $(CFLAGS) -c $<
+
+clean:
+	@-$(RM) -f *.o
+
+distclean: clean
+	-$(RM) -f Makefile
+
+#
+
+
diff --git a/w3mimg/x11/x11_w3mimg.c b/w3mimg/x11/x11_w3mimg.c
new file mode 100644
index 0000000..8c9cef2
--- /dev/null
+++ b/w3mimg/x11/x11_w3mimg.c
@@ -0,0 +1,723 @@
+/* $Id: x11_w3mimg.c,v 1.25 2003/07/13 16:19:10 ukai Exp $ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <ctype.h>
+#include "config.h"
+
+#if defined(USE_IMLIB)
+#include <Imlib.h>
+#elif defined(USE_IMLIB2)
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include <Imlib2.h>
+#elif defined(USE_GDKPIXBUF)
+#include <gdk-pixbuf/gdk-pixbuf-xlib.h>
+#else
+#error no Imlib and GdkPixbuf support
+#endif
+
+#include "w3mimg/w3mimg.h"
+
+#define OFFSET_X	2
+#define OFFSET_Y	2
+
+struct x11_info {
+    Display *display;
+    Window window, parent;
+    unsigned long background_pixel;
+    GC imageGC;
+#if defined(USE_IMLIB)
+    ImlibData *id;
+#elif defined(USE_GDKPIXBUF)
+    int init_flag;
+#endif
+};
+
+#if defined(USE_GDKPIXBUF)
+struct x11_image {
+    int total;
+    int no;
+    int wait;
+    int delay;
+    Pixmap *pixmap;
+};
+
+static void
+get_animation_size(GdkPixbufAnimation * animation, int *w, int *h, int *delay)
+{
+    GList *frames;
+    int iw, ih, n, i, d = -1;
+
+    frames = gdk_pixbuf_animation_get_frames(animation);
+    n = gdk_pixbuf_animation_get_num_frames(animation);
+    *w = gdk_pixbuf_animation_get_width(animation);
+    *h = gdk_pixbuf_animation_get_height(animation);
+    for (i = 0; i < n; i++) {
+	GdkPixbufFrame *frame;
+	GdkPixbuf *pixbuf;
+	int tmp;
+
+	frame = (GdkPixbufFrame *) g_list_nth_data(frames, i);
+	tmp = gdk_pixbuf_frame_get_delay_time(frame);
+	if (tmp > d)
+	    d = tmp;
+	pixbuf = gdk_pixbuf_frame_get_pixbuf(frame);
+	iw = gdk_pixbuf_frame_get_x_offset(frame)
+	    + gdk_pixbuf_get_width(pixbuf);
+	ih = gdk_pixbuf_frame_get_y_offset(frame)
+	    + gdk_pixbuf_get_height(pixbuf);
+	if (iw > *w)
+	    *w = iw;
+	if (ih > *h)
+	    *h = ih;
+    }
+    if (delay)
+	*delay = d;
+}
+
+#endif
+
+static int
+x11_init(w3mimg_op * self)
+{
+    struct x11_info *xi;
+    if (self == NULL)
+	return 0;
+    xi = (struct x11_info *)self->priv;
+    if (xi == NULL)
+	return 0;
+#if defined(USE_IMLIB)
+    if (!xi->id) {
+	xi->id = Imlib_init(xi->display);
+	if (!xi->id)
+	    return 0;
+    }
+#elif defined(USE_GDKPIXBUF)
+    if (!xi->init_flag) {
+	gdk_pixbuf_xlib_init(xi->display, 0);
+	xi->init_flag = TRUE;
+    }
+#endif
+    if (!xi->imageGC) {
+	xi->imageGC = XCreateGC(xi->display, xi->parent, 0, NULL);
+	if (!xi->imageGC)
+	    return 0;
+    }
+    return 1;
+}
+
+static int
+x11_finish(w3mimg_op * self)
+{
+    struct x11_info *xi;
+    if (self == NULL)
+	return 0;
+    xi = (struct x11_info *)self->priv;
+    if (xi == NULL)
+	return 0;
+    if (xi->imageGC) {
+	XFreeGC(xi->display, xi->imageGC);
+	xi->imageGC = NULL;
+    }
+    return 1;
+}
+
+static int
+x11_clear(w3mimg_op * self, int x, int y, int w, int h)
+{
+    struct x11_info *xi;
+    if (self == NULL)
+	return 0;
+    xi = (struct x11_info *)self->priv;
+    if (xi == NULL)
+	return 0;
+
+    if (x < 0)
+	x = 0;
+    if (y < 0)
+	y = 0;
+
+    XClearArea(xi->display, xi->window, x, y, w, h, False);
+    return 1;
+}
+
+static int
+x11_active(w3mimg_op * self)
+{
+    struct x11_info *xi;
+    if (self == NULL)
+	return 0;
+    xi = (struct x11_info *)self->priv;
+    if (xi == NULL)
+	return 0;
+    if (!xi->imageGC)
+	return 0;
+    return 1;
+}
+
+static void
+x11_set_background(w3mimg_op * self, char *background)
+{
+    XColor screen_def, exact_def;
+    struct x11_info *xi;
+    if (self == NULL)
+	return;
+    xi = (struct x11_info *)self->priv;
+    if (xi == NULL)
+	return;
+
+    if (background &&
+	XAllocNamedColor(xi->display, DefaultColormap(xi->display, 0),
+			 background, &screen_def, &exact_def))
+	xi->background_pixel = screen_def.pixel;
+    else {
+	Pixmap p;
+	GC gc;
+	XImage *i;
+
+	p = XCreatePixmap(xi->display, xi->window, 1, 1,
+			  DefaultDepth(xi->display, 0));
+	gc = XCreateGC(xi->display, xi->window, 0, NULL);
+	if (!p || !gc)
+	    exit(1);		/* XXX */
+	XCopyArea(xi->display, xi->window, p, gc,
+		  (self->offset_x >= 1) ? (self->offset_x - 1) : 0,
+		  (self->offset_y >= 1) ? (self->offset_y - 1) : 0,
+		  1, 1, 0, 0);
+	i = XGetImage(xi->display, p, 0, 0, 1, 1, -1, ZPixmap);
+	if (!i)
+	    exit(1);
+	xi->background_pixel = XGetPixel(i, 0, 0);
+	XDestroyImage(i);
+	XFreeGC(xi->display, gc);
+	XFreePixmap(xi->display, p);
+    }
+}
+
+static void
+x11_sync(w3mimg_op * self)
+{
+    struct x11_info *xi;
+    if (self == NULL)
+	return;
+    xi = (struct x11_info *)self->priv;
+    if (xi == NULL)
+	return;
+    XSync(xi->display, False);
+}
+
+static void
+x11_close(w3mimg_op * self)
+{
+    /* XCloseDisplay(xi->display); */
+}
+
+#if defined(USE_GDKPIXBUF)
+static struct x11_image *
+x11_img_new(struct x11_info *xi, int w, int h, int n)
+{
+    struct x11_image *img = NULL;
+    int i;
+
+    img = malloc(sizeof(*img));
+    if (!img)
+	goto ERROR;
+
+    img->pixmap = calloc(n, sizeof(*(img->pixmap)));
+    if (!img->pixmap)
+	goto ERROR;
+
+    for (i = 0; i < n; i++) {
+	img->pixmap[i] = XCreatePixmap(xi->display, xi->parent, w, h,
+				       DefaultDepth(xi->display, 0));
+	if (!img->pixmap[i])
+	    goto ERROR;
+
+	XSetForeground(xi->display, xi->imageGC, xi->background_pixel);
+	XFillRectangle(xi->display, (Pixmap) img->pixmap[i], xi->imageGC, 0, 0,
+		       w, h);
+    }
+
+    img->no = 0;
+    img->total = n;
+    img->wait = 0;
+    img->delay = -1;
+
+    return img;
+  ERROR:
+    if (img) {
+	if (img->pixmap) {
+	    for (i = 0; i < n; i++) {
+		if (img->pixmap[i])
+		    XFreePixmap(xi->display, (Pixmap) img->pixmap[i]);
+	    }
+	    free(img->pixmap);
+	}
+	free(img);
+    }
+    return NULL;
+}
+
+static GdkPixbuf *
+resize_image(GdkPixbuf * pixbuf, int width, int height)
+{
+    GdkPixbuf *resized_pixbuf;
+    int w, h;
+
+    if (pixbuf == NULL)
+	return NULL;
+    w = gdk_pixbuf_get_width(pixbuf);
+    h = gdk_pixbuf_get_height(pixbuf);
+    if (width < 1 || height < 1)
+	return pixbuf;
+    if (w == width && h == height)
+	return pixbuf;
+    resized_pixbuf =
+	gdk_pixbuf_scale_simple(pixbuf, width, height, GDK_INTERP_BILINEAR);
+    if (resized_pixbuf == NULL)
+	return NULL;
+    return resized_pixbuf;
+}
+#endif
+
+static int
+x11_load_image(w3mimg_op * self, W3MImage * img, char *fname, int w, int h)
+{
+    struct x11_info *xi;
+#if defined(USE_IMLIB)
+    ImlibImage *im;
+#elif defined(USE_IMLIB2)
+    Imlib_Image im;
+#elif defined(USE_GDKPIXBUF)
+    GdkPixbufAnimation *animation;
+    GList *frames;
+    int i, j, iw, ih, n, frame_num, delay, max_anim;
+    double ratio_w, ratio_h;
+    struct x11_image *ximg;
+    Pixmap tmp_pixmap;
+#endif
+
+    if (self == NULL)
+	return 0;
+    xi = (struct x11_info *)self->priv;
+    if (xi == NULL)
+	return 0;
+
+#if defined(USE_IMLIB)
+    im = Imlib_load_image(xi->id, fname);
+    if (!im)
+	return 0;
+    if (w <= 0)
+	w = im->rgb_width;
+    if (h <= 0)
+	h = im->rgb_height;
+    img->pixmap = (void *)XCreatePixmap(xi->display, xi->parent, w, h,
+					DefaultDepth(xi->display, 0));
+    if (!img->pixmap)
+	return 0;
+    XSetForeground(xi->display, xi->imageGC, xi->background_pixel);
+    XFillRectangle(xi->display, (Pixmap) img->pixmap, xi->imageGC, 0, 0, w, h);
+    Imlib_paste_image(xi->id, im, (Pixmap) img->pixmap, 0, 0, w, h);
+    Imlib_kill_image(xi->id, im);
+#elif defined(USE_IMLIB2)
+    im = imlib_load_image(fname);
+    if (!im)
+	return 0;
+    imlib_context_set_image(im);
+    if (w <= 0)
+	w = imlib_image_get_width();
+    if (h <= 0)
+	h = imlib_image_get_height();
+    img->pixmap = (void *)XCreatePixmap(xi->display, xi->parent, w, h,
+					DefaultDepth(xi->display, 0));
+    if (!img->pixmap)
+	return 0;
+    XSetForeground(xi->display, xi->imageGC, xi->background_pixel);
+    XFillRectangle(xi->display, (Pixmap) img->pixmap, xi->imageGC, 0, 0, w, h);
+    imlib_context_set_display(xi->display);
+    imlib_context_set_visual(DefaultVisual(xi->display, 0));
+    imlib_context_set_colormap(DefaultColormap(xi->display, 0));
+    imlib_context_set_drawable((Drawable) img->pixmap);
+    imlib_render_image_on_drawable_at_size(0, 0, w, h);
+    imlib_free_image();
+#elif defined(USE_GDKPIXBUF)
+    max_anim = self->max_anim;
+    animation = gdk_pixbuf_animation_new_from_file(fname);
+    if (!animation)
+	return 0;
+    frames = gdk_pixbuf_animation_get_frames(animation);
+    frame_num = n = gdk_pixbuf_animation_get_num_frames(animation);
+
+    get_animation_size(animation, &iw, &ih, &delay);
+    if (delay <= 0)
+	max_anim = -1;
+
+    if (max_anim < 0) {
+	frame_num = (-max_anim > n) ? n : -max_anim;
+    }
+    else if (max_anim > 0) {
+	frame_num = n = (max_anim > n) ? n : max_anim;
+    }
+
+    if (w < 1 || h < 1) {
+	w = iw;
+	h = ih;
+	ratio_w = ratio_h = 1;
+    }
+    else {
+	ratio_w = 1.0 * w / iw;
+	ratio_h = 1.0 * h / ih;
+    }
+    tmp_pixmap = XCreatePixmap(xi->display, xi->parent, w, h,
+			       DefaultDepth(xi->display, 0));
+    XFillRectangle(xi->display, (Pixmap) tmp_pixmap, xi->imageGC, 0, 0, w, h);
+    if (!tmp_pixmap) {
+	gdk_pixbuf_animation_unref(animation);
+	return 0;
+    }
+    ximg = x11_img_new(xi, w, h, frame_num);
+    if (!ximg) {
+	XFreePixmap(xi->display, tmp_pixmap);
+	gdk_pixbuf_animation_unref(animation);
+	return 0;
+    }
+    for (j = 0; j < n; j++) {
+	GdkPixbufFrame *frame;
+	GdkPixbuf *org_pixbuf, *pixbuf;
+	int width, height, ofstx, ofsty;
+
+	if (max_anim < 0) {
+	    i = (j - n + frame_num > 0) ? (j - n + frame_num) : 0;
+	}
+	else {
+	    i = j;
+	}
+	frame = (GdkPixbufFrame *) g_list_nth_data(frames, j);
+	org_pixbuf = gdk_pixbuf_frame_get_pixbuf(frame);
+	ofstx = gdk_pixbuf_frame_get_x_offset(frame);
+	ofsty = gdk_pixbuf_frame_get_y_offset(frame);
+	delay = gdk_pixbuf_frame_get_delay_time(frame);
+	width = gdk_pixbuf_get_width(org_pixbuf);
+	height = gdk_pixbuf_get_height(org_pixbuf);
+
+	if (ofstx == 0 && ofsty == 0 && width == w && height == h) {
+	    pixbuf = resize_image(org_pixbuf, w, h);
+	}
+	else {
+	    pixbuf =
+		resize_image(org_pixbuf, width * ratio_w, height * ratio_h);
+	    ofstx *= ratio_w;
+	    ofsty *= ratio_h;
+	}
+	width = gdk_pixbuf_get_width(pixbuf);
+	height = gdk_pixbuf_get_height(pixbuf);
+
+	if (delay > ximg->delay)
+	    ximg->delay = delay;
+
+	XCopyArea(xi->display, tmp_pixmap, ximg->pixmap[i],
+		  xi->imageGC, 0, 0, w, h, 0, 0);
+	gdk_pixbuf_xlib_render_to_drawable_alpha(pixbuf,
+						 (Drawable) ximg->pixmap[i], 0,
+						 0, ofstx, ofsty, width,
+						 height,
+						 GDK_PIXBUF_ALPHA_BILEVEL, 1,
+						 XLIB_RGB_DITHER_NORMAL, 0, 0);
+
+	switch (gdk_pixbuf_frame_get_action(frame)) {
+	case GDK_PIXBUF_FRAME_RETAIN:
+	    XCopyArea(xi->display, ximg->pixmap[i], tmp_pixmap,
+		      xi->imageGC, 0, 0, w, h, 0, 0);
+	    break;
+	case GDK_PIXBUF_FRAME_DISPOSE:
+	    break;
+	case GDK_PIXBUF_FRAME_REVERT:
+	    XCopyArea(xi->display, ximg->pixmap[0], tmp_pixmap,
+		      xi->imageGC, 0, 0, w, h, 0, 0);
+	    break;
+	default:
+	    XCopyArea(xi->display, ximg->pixmap[0], tmp_pixmap,
+		      xi->imageGC, 0, 0, w, h, 0, 0);
+	    break;
+	}
+
+
+	if (org_pixbuf != pixbuf)
+	    gdk_pixbuf_finalize(pixbuf);
+
+    }
+    XFreePixmap(xi->display, tmp_pixmap);
+    gdk_pixbuf_animation_unref(animation);
+    img->pixmap = ximg;
+#endif
+
+    img->width = w;
+    img->height = h;
+    return 1;
+}
+
+static int
+x11_show_image(w3mimg_op * self, W3MImage * img, int sx, int sy, int sw,
+	       int sh, int x, int y)
+{
+    struct x11_info *xi;
+#if defined(USE_GDKPIXBUF)
+    struct x11_image *ximg = img->pixmap;
+    int i;
+#endif
+    if (self == NULL)
+	return 0;
+
+    if (img->pixmap == NULL)
+	return 0;
+
+    xi = (struct x11_info *)self->priv;
+    if (xi == NULL)
+	return 0;
+
+#if defined(USE_IMLIB) || defined(USE_IMLIB2)
+    XCopyArea(xi->display, (Pixmap) img->pixmap, xi->window, xi->imageGC,
+	      sx, sy,
+	      (sw ? sw : img->width),
+	      (sh ? sh : img->height), x + self->offset_x, y + self->offset_y);
+#elif defined(USE_GDKPIXBUF)
+#define WAIT_CNT 4
+    if (ximg->delay <= 0)
+	i = ximg->total - 1;
+    else
+	i = ximg->no;
+    XCopyArea(xi->display, ximg->pixmap[i], xi->window, xi->imageGC,
+	      sx, sy,
+	      (sw ? sw : img->width),
+	      (sh ? sh : img->height), x + self->offset_x, y + self->offset_y);
+    if (ximg->total > 1) {
+	if (ximg->wait > WAIT_CNT) {
+	    ximg->wait = 0;
+	    if (i < ximg->total - 1)
+		ximg->no = i + 1;
+	    else
+		ximg->no = 0;
+	}
+	ximg->wait += 1;
+    }
+#endif
+    return 1;
+}
+
+static void
+x11_free_image(w3mimg_op * self, W3MImage * img)
+{
+    struct x11_info *xi;
+    if (self == NULL)
+	return;
+    xi = (struct x11_info *)self->priv;
+    if (xi == NULL)
+	return;
+#if defined(USE_IMLIB) || defined(USE_IMLIB2)
+    if (img && img->pixmap) {
+	XFreePixmap(xi->display, (Pixmap) img->pixmap);
+	img->pixmap = NULL;
+	img->width = 0;
+	img->height = 0;
+    }
+#elif defined(USE_GDKPIXBUF)
+    if (img && img->pixmap) {
+	struct x11_image *ximg = img->pixmap;
+	int i, n;
+	if (ximg->pixmap) {
+	    n = ximg->total;
+	    for (i = 0; i < n; i++) {
+		if (ximg->pixmap[i])
+		    XFreePixmap(xi->display, (Pixmap) ximg->pixmap[i]);
+	    }
+	    free(ximg->pixmap);
+	}
+	free(ximg);
+	img->pixmap = NULL;
+	img->width = 0;
+	img->height = 0;
+    }
+#endif
+}
+
+static int
+x11_get_image_size(w3mimg_op * self, W3MImage * img, char *fname, int *w,
+		   int *h)
+{
+    struct x11_info *xi;
+#if defined(USE_IMLIB)
+    ImlibImage *im;
+#elif defined(USE_IMLIB2)
+    Imlib_Image im;
+#elif defined(USE_GDKPIXBUF)
+    GdkPixbufAnimation *animation;
+#endif
+
+    if (self == NULL)
+	return 0;
+    xi = (struct x11_info *)self->priv;
+    if (xi == NULL)
+	return 0;
+
+#if defined(USE_IMLIB)
+    im = Imlib_load_image(xi->id, fname);
+    if (!im)
+	return 0;
+
+    *w = im->rgb_width;
+    *h = im->rgb_height;
+    Imlib_kill_image(xi->id, im);
+#elif defined(USE_IMLIB2)
+    im = imlib_load_image(fname);
+    if (im == NULL)
+	return 0;
+
+    imlib_context_set_image(im);
+    *w = imlib_image_get_width();
+    *h = imlib_image_get_height();
+    imlib_free_image();
+#elif defined(USE_GDKPIXBUF)
+    animation = gdk_pixbuf_animation_new_from_file(fname);
+    if (!animation)
+	return 0;
+
+    get_animation_size(animation, w, h, NULL);
+    gdk_pixbuf_animation_unref(animation);
+#endif
+    return 1;
+}
+
+/* *INDENT-OFF* */
+/*
+  xterm/kterm/hanterm/cxterm
+    top window (WINDOWID)
+      +- text window
+           +- scrollbar
+  rxvt/aterm/Eterm/wterm
+    top window (WINDOWID)
+      +- text window
+      +- scrollbar
+      +- menubar (etc.)
+  gnome-terminal
+    top window
+      +- text window (WINDOWID)
+      +- scrollbar
+      +- menubar
+  mlterm (-s)
+    top window
+      +- text window (WINDOWID)
+      +- scrollbar
+  mlterm
+    top window = text window (WINDOWID)
+
+  powershell
+    top window
+      +- window
+      |    +- text window
+      |    +- scrollbar
+      +- menubar (etc.)
+  dtterm
+    top window
+      +- window
+           +- window
+           |    +- window
+           |         +- text window
+           |         +- scrollbar
+           +- menubar
+  hpterm
+    top window
+      +- window
+           +- text window
+           +- scrollbar
+           +- (etc.)
+*/
+/* *INDENT-ON* */
+
+w3mimg_op *
+w3mimg_x11open()
+{
+    w3mimg_op *wop = NULL;
+    struct x11_info *xi = NULL;
+    char *id;
+    int revert, i;
+    unsigned int nchildren;
+    XWindowAttributes attr;
+    Window root, *children;
+
+    wop = (w3mimg_op *) malloc(sizeof(w3mimg_op));
+    if (wop == NULL)
+	return NULL;
+    memset(wop, 0, sizeof(w3mimg_op));
+
+    xi = (struct x11_info *)malloc(sizeof(struct x11_info));
+    if (xi == NULL)
+	goto error;
+    memset(xi, 0, sizeof(struct x11_info));
+
+    xi->display = XOpenDisplay(NULL);
+    if (xi->display == NULL) {
+	goto error;
+    }
+    if ((id = getenv("WINDOWID")) != NULL)
+	xi->window = (Window) atoi(id);
+    else
+	XGetInputFocus(xi->display, &xi->window, &revert);
+    if (!xi->window)
+	exit(1);
+
+    XGetWindowAttributes(xi->display, xi->window, &attr);
+    wop->width = attr.width;
+    wop->height = attr.height;
+
+    while (1) {
+	Window p_window;
+
+	XQueryTree(xi->display, xi->window, &root, &xi->parent,
+		   &children, &nchildren);
+	p_window = xi->window;
+	for (i = 0; i < nchildren; i++) {
+	    XGetWindowAttributes(xi->display, children[i], &attr);
+	    if (attr.width > wop->width * 0.7 &&
+		attr.height > wop->height * 0.7) {
+		/* maybe text window */
+		wop->width = attr.width;
+		wop->height = attr.height;
+		xi->window = children[i];
+	    }
+	}
+	if (p_window == xi->window)
+	    break;
+    }
+    wop->offset_x = OFFSET_X;
+    for (i = 0; i < nchildren; i++) {
+	XGetWindowAttributes(xi->display, children[i], &attr);
+	if (attr.x <= 0 && attr.width < 30 && attr.height > wop->height * 0.7) {
+	    /* scrollbar of xterm/kterm ? */
+	    wop->offset_x += attr.x + attr.width + attr.border_width * 2;
+	    break;
+	}
+    }
+    wop->offset_y = OFFSET_Y;
+
+    wop->priv = xi;
+
+    wop->init = x11_init;
+    wop->finish = x11_finish;
+    wop->active = x11_active;
+    wop->set_background = x11_set_background;
+    wop->sync = x11_sync;
+    wop->close = x11_close;
+    wop->clear = x11_clear;
+
+    wop->load_image = x11_load_image;
+    wop->show_image = x11_show_image;
+    wop->free_image = x11_free_image;
+    wop->get_image_size = x11_get_image_size;
+
+    return wop;
+  error:
+    if (xi)
+	free(xi);
+    free(wop);
+    return NULL;
+}