[w3m-dev 03930] Re: clear image

> 
> rxvt(aterm,Eterm,etc) mlterm  CVS
> 
> frame buffer 
> 

(_ _)

> # Zaurus SL-C700  embeddedkonsole 
> # w3mimgfb  
> # SL-C700  netmaj + w3mimgdisplay 
> # 

# 
----------------------------------- 
  <[email protected]> 
 http://www2u.biglobe.ne.jp/~hsaka/

diff -u image.c.orig image.c
--- image.c.orig	Tue May 13 10:27:31 2003
+++ image.c	Mon Jul  7 20:50:18 2003
@@ -149,6 +149,24 @@
     n_terminal_image++;
 }
 
+static void
+syncImage(void)
+{
+    fputs("3;\n", Imgdisplay_wf);	/* XSync() */
+    fputs("4;\n", Imgdisplay_wf);	/* put '\n' */
+    while (fflush(Imgdisplay_wf) != 0) {
+	if (ferror(Imgdisplay_wf))
+	    goto err;
+    }
+    if (!fgetc(Imgdisplay_rf))
+	goto err;
+    return;
+  err:
+    closeImgdisplay();
+    image_index += MAX_IMAGE;
+    n_terminal_image = 0;
+}
+
 void
 drawImage()
 {
@@ -169,10 +187,6 @@
 	    if (!openImgdisplay())
 		return;
 	}
-	if (!draw) {
-	    fputs("3;\n", Imgdisplay_wf);	/* XSync() */
-	    draw = TRUE;
-	}
 	if (i->cache->index > 0) {
 	    i->cache->index *= -1;
 	    fputs("0;", Imgdisplay_wf);	/* DrawImage() */
@@ -187,49 +201,39 @@
 	fputs(buf, Imgdisplay_wf);
 	fputs(i->cache->file, Imgdisplay_wf);
 	fputs("\n", Imgdisplay_wf);
-	fputs("4;\n", Imgdisplay_wf);	/* put '\n' */
-	while (fflush(Imgdisplay_wf) != 0) {
-	    if (ferror(Imgdisplay_wf))
-		goto err;
-	}
-	if (!fgetc(Imgdisplay_rf))
-	    goto err;
+	draw = TRUE;
     }
     if (!draw)
 	return;
-    fputs("3;\n", Imgdisplay_wf);	/* XSync() */
-    fputs("4;\n", Imgdisplay_wf);	/* put '\n' */
-    while (fflush(Imgdisplay_wf) != 0) {
-	if (ferror(Imgdisplay_wf))
-	    goto err;
-    }
-    if (!fgetc(Imgdisplay_rf))
-	goto err;
-    /*
-     * touch_line();
-     * touch_column(CurColumn);
-     * #ifdef JP_CHARSET
-     * if (CurColumn > 0 &&
-     * CHMODE(ScreenImage[CurLine]->lineprop[CurColumn]) == C_WCHAR2)
-     * touch_column(CurColumn - 1);
-     * else if (CurColumn < COLS - 1 &&
-     * CHMODE(ScreenImage[CurLine]->lineprop[CurColumn]) == C_WCHAR1)
-     * touch_column(CurColumn + 1);
-     * #endif
-     */
+    syncImage();
     touch_cursor();
     refresh();
-    return;
-  err:
-    closeImgdisplay();
-    image_index += MAX_IMAGE;
 }
 
 void
 clearImage()
 {
+    static char buf[64];
+    int j;
+    TerminalImage *i;
+
     if (!activeImage)
 	return;
+    if (!n_terminal_image)
+	return;
+    if (!Imgdisplay_wf) {
+	n_terminal_image = 0;
+	return;
+    }
+    for (j = 0; j < n_terminal_image; j++) {
+	i = &terminal_image[j];
+	if (!(i->cache->loaded & IMG_FLAG_LOADED &&
+	    i->width > 0 && i->height > 0))
+	    continue;
+	sprintf(buf, "6;%d;%d;%d;%d\n", i->x, i->y, i->width, i->height);
+	fputs(buf, Imgdisplay_wf);
+    }
+    syncImage();
     n_terminal_image = 0;
 }
 
diff -u w3mimgdisplay.c.orig w3mimgdisplay.c
--- w3mimgdisplay.c.orig	Fri Mar 28 10:05:13 2003
+++ w3mimgdisplay.c	Tue Jul  8 09:52:25 2003
@@ -21,7 +21,8 @@
 
 static void GetOption(int argc, char **argv);
 static void DrawImage(char *buf, int redraw);
-static void ClearImage(void);
+static void TermImage(void);
+static void ClearImage(char *buf);
 
 int
 main(int argc, char **argv)
@@ -100,15 +101,18 @@
 	 * op	args
 	 *  0;  params		draw image
 	 *  1;  params		redraw image
-	 *  2;  -none-		clear image
+	 *  2;  -none-		terminate drawing
 	 *  3;  -none-		sync drawing
 	 *  4;  -none-		nop, sync communication
 	 *			response '\n'
 	 *  5;  path		get size of image,
 	 *			response "<width> <height>\n"
+	 *  6;  params(6)	clear image
 	 *
 	 * params
 	 *	<n>;<x>;<y>;<w>;<h>;<sx>;<sy>;<sw>;<sh>;<path>
+	 * params(6)
+	 *	<x>;<y>;<w>;<h>
 	 *   
 	 */
 	switch (buf[0]) {
@@ -119,7 +123,7 @@
 	    DrawImage(&buf[2], 1);
 	    break;
 	case '2':
-	    ClearImage();
+	    TermImage();
 	    break;
 	case '3':
 	    w_op->sync(w_op);
@@ -144,9 +148,12 @@
 		fflush(stdout);
 	    }
 	    break;
+	case '6':
+	    ClearImage(&buf[2]);
+	    break;
 	}
     }
-    ClearImage();
+    TermImage();
     w_op->close(w_op);
     exit(0);
 }
@@ -278,7 +285,7 @@
 }
 
 void
-ClearImage(void)
+TermImage(void)
 {
     w_op->finish(w_op);
     if (imageBuf) {
@@ -290,4 +297,30 @@
 	imageBuf = NULL;
     }
     maxImage = 0;
+}
+
+void
+ClearImage(char *buf)
+{
+    char *p = buf;
+    int x = 0, y = 0, w = 0, h = 0;
+
+    if (!p)
+	return;
+    for (; isdigit(*p); p++)
+	x = 10 * x + (*p - '0');
+    if (*(p++) != ';')
+	return;
+    for (; isdigit(*p); p++)
+	y = 10 * y + (*p - '0');
+    if (*(p++) != ';')
+	return;
+    for (; isdigit(*p); p++)
+	w = 10 * w + (*p - '0');
+    if (*(p++) != ';')
+	return;
+    for (; isdigit(*p); p++)
+	h = 10 * h + (*p - '0');
+
+    w_op->clear(w_op, x + offset_x, y + offset_y, w, h);
 }
diff -u w3mimg/w3mimg.h.orig w3mimg/w3mimg.h
--- w3mimg/w3mimg.h.orig	Fri Mar 28 10:06:07 2003
+++ w3mimg/w3mimg.h	Mon Jul  7 15:45:20 2003
@@ -32,6 +32,7 @@
     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
diff -u w3mimg/fb/fb.c.orig w3mimg/fb/fb.c
--- w3mimg/fb/fb.c.orig	Fri Nov  1 10:30:44 2002
+++ w3mimg/fb/fb.c	Tue Jul  8 09:54:57 2003
@@ -365,6 +365,31 @@
     return vscinfo.yres;
 }
 
+int
+fb_clear(int x, int y, int w, int h, int r, int g, int b)
+{
+    unsigned long work;
+    int i, j, offset_fb;
+
+    if (is_open != TRUE || x > fb_width() || y > fb_height())
+	return 1;
+    if (x + w > fb_width())
+	w = fb_width() - x;
+    if (y + h > fb_height())
+	h = fb_height() - y;
+
+    offset_fb = fscinfo.line_length * y + pixel_size * x;
+    work = ((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);
+    for (i = 0; i < h; i++) {
+	for (j = 0; j < w; j++)
+	    memcpy(buf + offset_fb + pixel_size * j, &work, pixel_size);
+	offset_fb += fscinfo.line_length;
+    }
+    return 0;
+}
+
 /********* static functions **************/
 static
     int
diff -u w3mimg/fb/fb.h.orig w3mimg/fb/fb.h
--- w3mimg/fb/fb.h.orig	Mon Oct 21 16:53:07 2002
+++ w3mimg/fb/fb.h	Mon Jul  7 20:28:29 2003
@@ -29,5 +29,6 @@
 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 -u w3mimg/fb/fb_img.c.orig w3mimg/fb/fb_img.c
--- w3mimg/fb/fb_img.c.orig	Mon Oct 21 16:53:10 2002
+++ w3mimg/fb/fb_img.c	Mon Jul  7 20:20:27 2003
@@ -24,3 +24,9 @@
     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 -u w3mimg/fb/fb_w3mimg.c.orig w3mimg/fb/fb_w3mimg.c
--- w3mimg/fb/fb_w3mimg.c.orig	Mon Apr  7 11:54:13 2003
+++ w3mimg/fb/fb_w3mimg.c	Mon Jul  7 20:32:25 2003
@@ -61,6 +61,15 @@
 }
 
 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;
@@ -179,6 +188,7 @@
     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;
diff -u w3mimg/x11/x11_w3mimg.c.orig w3mimg/x11/x11_w3mimg.c
--- w3mimg/x11/x11_w3mimg.c.orig	Fri Jun 20 13:52:54 2003
+++ w3mimg/x11/x11_w3mimg.c	Mon Jul  7 15:46:01 2003
@@ -123,6 +123,19 @@
 }
 
 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;
+    XClearArea(xi->display, xi->window, x, y, w, h, FALSE);
+    return 1;
+}
+
+static int
 x11_active(w3mimg_op * self)
 {
     struct x11_info *xi;
@@ -688,6 +701,7 @@
     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;