kolibrios/kernel/trunk/umka/tools/lfbviewx.c
Magomed Kostoev (mkostoevr) 74e8772507 [KERNEL][UMKA] Initial commit
git-svn-id: svn://kolibrios.org@9325 a494cfbc-eb01-0410-851d-a64ba20cac60
2021-11-26 23:05:35 +00:00

82 lines
2.8 KiB
C

#include <inttypes.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/uio.h>
#include <unistd.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/XKBlib.h>
int main(int argc, char *argv[]) {
if (argc != 5) {
printf("usage: lfbviewx <pid> <address> <width> <height>\n");
exit(1);
}
int depth = 32;
int umka_pid = strtol(argv[1], NULL, 0);
uintptr_t umka_lfb_addr = strtol(argv[2], NULL, 0);
size_t lfb_width = strtoul(argv[3], NULL, 0);
size_t lfb_height = strtoul(argv[4], NULL, 0);
Display *display = XOpenDisplay(NULL);
int screen_num = XDefaultScreen(display);
Window root = XDefaultRootWindow(display);
XVisualInfo vis_info;
if(!XMatchVisualInfo(display, screen_num, depth, TrueColor, &vis_info)) {
fprintf(stderr, "ERR: %d-bit depth is not supported\n", depth);
exit(1);
}
Visual *visual = vis_info.visual;
XSetWindowAttributes win_attr = {
.colormap = XCreateColormap(display, root, visual, AllocNone),
.background_pixel = 0,
.border_pixel = 0};
unsigned long win_mask = CWBackPixel | CWColormap | CWBorderPixel;
Window window = XCreateWindow(display, root, 0, 0, lfb_width, lfb_height, 0, depth, InputOutput, visual, win_mask, &win_attr);
GC gc = XCreateGC(display, window, 0, 0);
uint32_t *lfb = (uint32_t*)malloc(lfb_width*lfb_height*sizeof(uint32_t));
XImage *image = XCreateImage(display, visual, depth, ZPixmap, 0, (char*)lfb, lfb_width, lfb_height, 32, 0);
XSelectInput(display, window, ExposureMask | KeyPressMask);
XStoreName(display, window, "KolibriOS LFB Viewer for X");
XMapWindow(display, window);
struct iovec remote = {.iov_base = (void*)umka_lfb_addr,
.iov_len = lfb_width*lfb_height*4};
struct iovec local = {.iov_base = lfb,
.iov_len = lfb_width*lfb_height*4};
/*
XEvent event;
while (true) {
XNextEvent(display, &event);
if (event.type == Expose) {
process_vm_readv(umka_pid, &local, 1, &remote, 1, 0);
XPutImage(display, window, gc, image, 0, 0, 0, 0, lfb_width, lfb_height);
} else if (event.type == KeyPress) {
int keysym = XkbKeycodeToKeysym(display, event. xkey.keycode, 0, 0);
if (keysym == XK_Escape) break;
switch (keysym) {
case XK_Left: {break;}
}
}
}
*/
XEvent event;
while (true) {
while (XCheckMaskEvent(display, (long)-1, &event)) { /* skip */ }
process_vm_readv(umka_pid, &local, 1, &remote, 1, 0);
XPutImage(display, window, gc, image, 0, 0, 0, 0, lfb_width, lfb_height);
sleep(1);
}
XCloseDisplay(display);
return 0;
}