Adding upstream version 0.5.1

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;
+}