我正在尝试将x11移植到arm处理器。所以我使用Imlib2库为jpeg图片。我已成功交叉编译Imlib2库与x windows到arm.My示例程序也成功构建。但是当我运行二进制jpeg没有正确显示。(它显示图像上传错误);
#
include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <X11/Xlib.h>
#include <Imlib2.h>
int main(int argc, char **argv)
{
Imlib_Image img;
Display *dpy;
Pixmap pix;
Window root;
Screen *scn;
int width, height;
const char *filename = NULL;
if (argc < 2)
return 0;
filename = argv[1];
img = imlib_load_image(filename);
printf("img values %x",img);
if (!img) {
fprintf(stderr, "%s:Unable to load image\n", filename);
return 0;
}
imlib_context_set_image(img);
width = imlib_image_get_width();
height = imlib_image_get_height();
dpy = XOpenDisplay(NULL);
if (!dpy)
return 0;
scn = DefaultScreenOfDisplay(dpy);
root = DefaultRootWindow(dpy);
pix = XCreatePixmap(dpy, root, width, height,
DefaultDepthOfScreen(scn));
printf("caal");
imlib_context_set_display(dpy);
imlib_context_set_visual(DefaultVisualOfScreen(scn));
imlib_context_set_colormap(DefaultColormapOfScreen(scn));
imlib_context_set_drawable(pix);
imlib_render_image_on_drawable(0, 0);
Window w = XCreateSimpleWindow(dpy, root, 0, 0, width, height, 0, None, None);
XSelectInput(dpy, w, ExposureMask);
XMapWindow(dpy, w);
//XCopyPlane(dpy, pix, w, gc, 0, 0, width, height, 0, 0, DefaultDepthOfScreen(scn));
XFlush(dpy);
XSetWindowBackgroundPixmap(dpy, w, pix);
XClearWindow(dpy, root);
XEvent ev;
while (XNextEvent(dpy, &ev)) {
if( ev.type == Expose )
{
//XCopyPlane(dpy, pix, w, gc, 0, 0, width, height, 0, 0, DefaultDepthOfScreen(scn));
printf("Expose called\n");
}
}
sleep(20);
XFreePixmap(dpy, pix);
imlib_free_image();
XCloseDisplay(dpy);
return 0;
fprintf(stderr, "usage: %s <image_file>\n", argv[0]);
return 1;
}