merge w3m-img for framebuffer support

* w3mimg/w3mimg.h: created
* w3mimg/x11/x11_w3mimg.c: created
* w3mimg/fb/fb_w3mimg.c: created
* w3mimgsize.c w3mimgdisplay.c: modified
* configure: modified
* XMakefile: modified
* config.h.dist: updated
From: Fumitoshi UKAI  <ukai@debian.or.jp>

w3m-img for framebuffer support
* http://homepage3.nifty.com/slokar/fb/
* w3mimg/fb/fb.c w3mimg/fb/fb.h
  w3mimg/fb/fb_img.c w3mimg/fb/fb_img.h
  w3mimg/fb/fb_gdkpixbuf.c w3mimg/fb/fb_gdkpixbuf.h
  w3mimg/fb/fb_imlib2.c w3mimg/fb/fb_imlib.h
  w3mimg/fb/readme.txt w3mimg/fb/license.txt: added
From: Hiroshi Kawashima <kei@sm.sony.co.jp>

1 files changed, 330 insertions, 0 deletions

diff --git a/w3mimg/x11/x11_w3mimg.c b/w3mimg/x11/x11_w3mimg.c
new file mode 100644
index 0000000..685f038
--- /dev/null
+++ b/w3mimg/x11/x11_w3mimg.c
@@ -0,0 +1,330 @@
+/* $Id: x11_w3mimg.c,v 1.1 2002/07/17 20:58:48 ukai Exp $ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <ctype.h>
+
+#include <Imlib.h>
+
+#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;
+    ImlibData *id;
+};
+
+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 (! xi->id) {
+	xi->id = Imlib_init(xi->display);
+	if (! xi->id)
+	    return 0;
+    }
+    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_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); */
+}
+
+static int
+x11_load_image(w3mimg_op *self, W3MImage *img, char *fname, int w, int h)
+{
+    struct x11_info *xi;
+    ImlibImage *im;
+
+    if (self == NULL)
+	return 0;
+    xi = (struct x11_info *)self->priv;
+    if (xi == NULL)
+	return 0;
+
+    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);
+    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 (self == NULL)
+	return 0;
+    xi = (struct x11_info *)self->priv;
+    if (xi == NULL)
+	return 0;
+
+    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);
+    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 (img && img->pixmap) {
+	XFreePixmap(xi->display,  (Pixmap)img->pixmap);
+	img->pixmap = NULL;
+	img->width = 0;
+	img->height = 0;
+    }
+}
+
+
+/* *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, 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->load_image = x11_load_image;
+    wop->show_image = x11_show_image;
+    wop->free_image = x11_free_image;
+
+    return wop;
+error:
+    if (xi)
+	free(xi);
+    free(wop);
+    return NULL;
+}