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cf8a80d0d6
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GPG key ID:
22618F758B5BE2E5
1 changed files with 369 additions and 26 deletions
391
server.c
391
server.c
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@ -5,8 +5,270 @@
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#include <sys/mman.h>
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#include <sys/mman.h>
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#include <xf86drm.h>
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#include <xf86drm.h>
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#include <libdrm/drm_fourcc.h>
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#include <libdrm/i915_drm.h>
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#include <libdrm/amdgpu_drm.h>
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#include <xf86drmMode.h>
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#include <xf86drmMode.h>
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//#include <cairo.h>
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#include <linux/uinput.h>
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#include <xkbcommon/xkbcommon.h>
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#include <math.h>
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#define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
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/* 10 frames per second (if we can) */
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#define PICTURE_TIMEOUT (1.0/10.0)
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#define UINPUT_ABS_MAX INT16_MAX
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struct Vec2d {
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int x;
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int y;
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};
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struct Vec2d resolution;
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/*
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* throttle camera updates
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*/
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static int TimeToTakePicture() {
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static struct timeval now={0,0}, then={0,0};
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double elapsed, dnow, dthen;
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gettimeofday(&now,NULL);
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dnow = now.tv_sec + (now.tv_usec /1000000.0);
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dthen = then.tv_sec + (then.tv_usec/1000000.0);
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elapsed = dnow - dthen;
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if (elapsed > PICTURE_TIMEOUT)
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memcpy((char *)&then, (char *)&now, sizeof(struct timeval));
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return elapsed > PICTURE_TIMEOUT;
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}
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static void convert_bgrx_to_rgb(const char* in, int width, int height, char* buff) {
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for (int y = 0; y < height; y++)
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{
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for(int x = 0; x < width; x++)
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{
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buff[(y*width+x)*4] = in[(y*width+x)*4 + 2];
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buff[(y*width+x)*4 + 1] = in[(y*width+x)*4 + 1];
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buff[(y*width+x)*4 + 2] = in[(y*width+x)*4];
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}
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}
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}
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struct vnc_xkb {
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struct xkb_context *ctx;
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struct xkb_keymap *map;
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};
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struct vnc_xkb xkb;
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#define MAX_KEYS 256
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int uinput_fd = 0;
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char keystate[MAX_KEYS];
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static void xkb_init() {
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xkb.ctx = xkb_context_new(XKB_CONTEXT_NO_FLAGS);
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if (xkb.ctx == NULL) {
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fprintf(stderr, "Failed to create XKB context\n");
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exit(1);
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}
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struct xkb_rule_names names = {
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.rules = "",
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.model = "",
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.layout = "us",
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.variant = "",
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.options = ""
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};
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xkb.map = xkb_keymap_new_from_names(xkb.ctx, &names, 0);
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if (xkb.map == NULL) {
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fprintf(stderr, "Failed to create XKB context\n");
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exit(1);
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}
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printf("xkb: keymap = %s\n", xkb_keymap_get_as_string(xkb.map, XKB_KEYMAP_USE_ORIGINAL_FORMAT));
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}
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static void uinput_init() {
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struct uinput_setup usetup;
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uinput_fd = open("/dev/uinput", O_WRONLY | O_NONBLOCK);
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if (uinput_fd <= 0) {
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fprintf(stderr, "Failed to open uinput\n");
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exit(1);
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}
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ioctl(uinput_fd, UI_SET_EVBIT, EV_KEY);
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ioctl(uinput_fd, UI_SET_EVBIT, EV_SYN);
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for (int i = 0; i < MAX_KEYS; i++) {
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ioctl(uinput_fd, UI_SET_KEYBIT, i);
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}
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ioctl(uinput_fd, UI_SET_EVBIT, EV_ABS);
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ioctl(uinput_fd, UI_SET_ABSBIT, ABS_X);
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ioctl(uinput_fd, UI_SET_ABSBIT, ABS_Y);
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ioctl(uinput_fd, UI_SET_KEYBIT, BTN_LEFT);
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ioctl(uinput_fd, UI_SET_KEYBIT, BTN_MIDDLE);
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ioctl(uinput_fd, UI_SET_KEYBIT, BTN_RIGHT);
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ioctl(uinput_fd, UI_SET_EVBIT, EV_REL);
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ioctl(uinput_fd, UI_SET_RELBIT, REL_WHEEL);
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struct uinput_abs_setup abs;
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memset(&abs, 0, sizeof(abs));
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abs.absinfo.maximum = UINPUT_ABS_MAX;
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abs.absinfo.minimum = 0;
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abs.code = ABS_X;
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ioctl(uinput_fd, UI_ABS_SETUP, &abs);
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abs.code = ABS_Y;
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ioctl(uinput_fd, UI_ABS_SETUP, &abs);
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memset(&usetup, 0, sizeof(usetup));
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usetup.id.bustype = BUS_USB;
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usetup.id.vendor = 0x0011;
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usetup.id.product = 0x4514;
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strcpy(usetup.name, "kmsvnc-device");
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ioctl(uinput_fd, UI_DEV_SETUP, &usetup);
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ioctl(uinput_fd, UI_DEV_CREATE);
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memset(keystate, 0, MAX_KEYS);
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}
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struct key_iter_search {
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xkb_keysym_t keysym;
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xkb_keycode_t keycode;
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xkb_level_index_t level;
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};
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static void key_iter(struct xkb_keymap *xkb, xkb_keycode_t key, void *data) {
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struct key_iter_search *search = data;
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if (search->keycode != XKB_KEYCODE_INVALID) {
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return; // We are done
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}
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xkb_level_index_t num_levels = xkb_keymap_num_levels_for_key(xkb, key, 0);
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for (xkb_level_index_t i = 0; i < num_levels; i++) {
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const xkb_keysym_t *syms;
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int num_syms = xkb_keymap_key_get_syms_by_level(xkb, key, 0, i, &syms);
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for (int k = 0; k < num_syms; k++) {
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if (syms[k] == search->keysym) {
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search->keycode = key;
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search->level = i;
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break;
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goto end;
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}
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}
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}
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end:
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return;
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}
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static void rfb_key_hook(rfbBool down, rfbKeySym keysym, rfbClientPtr cl) {
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struct key_iter_search search = {
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.keysym = keysym,
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.keycode = XKB_KEYCODE_INVALID,
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.level = 0,
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};
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xkb_keymap_key_for_each(xkb.map, key_iter, &search);
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if (search.keycode == XKB_KEYCODE_INVALID) {
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fprintf(stderr, "Keysym %04x not found in our keymap\n", keysym);
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return;
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}
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printf("key %s, keysym %04x, keycode %u\n", down ? "down" : "up", keysym, search.keycode);
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if (search.keycode >= MAX_KEYS) {
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fprintf(stderr, "Keycode %d >= %d\n", search.keycode, MAX_KEYS);
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return;
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}
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if (down != keystate[search.keycode]) {
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struct input_event ies[] = {
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{
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.type = EV_KEY,
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.code = search.keycode,
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.value = down,
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.time.tv_sec = 0,
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.time.tv_usec = 0,
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},
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{
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.type = EV_SYN,
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.code = SYN_REPORT,
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.value = 0,
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},
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};
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for (int i = 0; i < ARRAY_SIZE(ies); i++) {
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write(uinput_fd, &ies[i], sizeof(ies[0]));
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}
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keystate[search.keycode] = down;
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}
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}
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static void rfb_ptr_hook(int mask, int screen_x, int screen_y, rfbClientPtr cl) {
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printf("pointer to %d, %d\n", screen_x, screen_y);
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float global_x = (float)screen_x;
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float global_y = (float)screen_y;
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int touch_x = round(global_x / resolution.x * UINPUT_ABS_MAX);
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int touch_y = round(global_y / resolution.y * UINPUT_ABS_MAX);
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struct input_event ies1[] = {
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{
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.type = EV_ABS,
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.code = ABS_X,
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.value = touch_x,
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},
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{
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.type = EV_ABS,
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.code = ABS_Y,
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.value = touch_y,
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},
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{
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.type = EV_KEY,
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.code = BTN_LEFT,
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.value = !! (mask & 0b1)
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},
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{
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.type = EV_KEY,
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.code = BTN_MIDDLE,
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.value = !! (mask & 0b10)
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},
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{
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.type = EV_KEY,
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.code = BTN_RIGHT,
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.value = !! (mask & 0b100)
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},
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{
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.type = EV_SYN,
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.code = SYN_REPORT,
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.value = 0,
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},
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};
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for (int i = 0; i < ARRAY_SIZE(ies1); i++) {
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write(uinput_fd, &ies1[i], sizeof(ies1[0]));
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}
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if (mask & 0b11000) {
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struct input_event ies2[] = {
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{
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.type = EV_REL,
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.code = REL_WHEEL,
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.value = mask & 0b1000 ? -1 : 1,
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},
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{
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.type = EV_SYN,
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.code = SYN_REPORT,
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.value = 0,
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},
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};
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for (int i = 0; i < ARRAY_SIZE(ies2); i++) {
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write(uinput_fd, &ies2[i], sizeof(ies2[0]));
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}
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}
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}
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static void drm_wait_vblank(int drmfd) {
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int ioctl_err;
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union drm_wait_vblank vbl;
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memset(&vbl, 0, sizeof(vbl));
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vbl.request.type = DRM_VBLANK_RELATIVE;
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vbl.request.sequence = 1;
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if (ioctl_err = drmIoctl(drmfd, DRM_IOCTL_WAIT_VBLANK, &vbl))
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fprintf(stderr, "DRM ioctl error %d on line %d\n", ioctl_err, __LINE__);
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}
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int main(int argc, const char **argv)
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int main(int argc, const char **argv)
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{
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{
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@ -14,6 +276,8 @@ int main(int argc, const char **argv)
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printf("not enough arguments\n");
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printf("not enough arguments\n");
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return 1;
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return 1;
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}
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}
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xkb_init();
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uinput_init();
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const char *card = argv[1];
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const char *card = argv[1];
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const int drmfd = open(card, O_RDONLY);
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const int drmfd = open(card, O_RDONLY);
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@ -21,6 +285,7 @@ int main(int argc, const char **argv)
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fprintf(stderr, "card %s open failed: %s\n", card, strerror(errno));
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fprintf(stderr, "card %s open failed: %s\n", card, strerror(errno));
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return 1;
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return 1;
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}
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}
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drmVersionPtr drm_ver = drmGetVersion(drmfd);
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int err;
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int err;
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int source_plane = 0;
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int source_plane = 0;
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int source_crtc = 0;
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int source_crtc = 0;
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@ -30,7 +295,7 @@ int main(int argc, const char **argv)
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}
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}
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drmModePlane *plane = NULL;
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drmModePlane *plane = NULL;
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drmModePlaneRes *plane_res = NULL;
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drmModePlaneRes *plane_res = NULL;
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drmModeFB2 *fb = NULL;
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drmModeFB *fb = NULL;
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if (source_plane > 0) {
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if (source_plane > 0) {
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plane = drmModeGetPlane(drmfd, source_plane);
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plane = drmModeGetPlane(drmfd, source_plane);
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if (!plane) {
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if (!plane) {
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@ -76,52 +341,130 @@ int main(int argc, const char **argv)
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}
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}
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uint32_t plane_id = plane->plane_id;
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uint32_t plane_id = plane->plane_id;
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fb = drmModeGetFB2(drmfd, plane->fb_id);
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fb = drmModeGetFB(drmfd, plane->fb_id);
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if (!fb) {
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if (!fb) {
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fprintf(stderr, "Failed to get framebuffer %u: %s\n", plane->fb_id, strerror(errno));
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fprintf(stderr, "Failed to get framebuffer %u: %s\n", plane->fb_id, strerror(errno));
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goto cleanup;
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goto cleanup;
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}
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}
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//printf("Template framebuffer is %u: %ux%u %ubpp %ub depth %u pitch\n", fb->fb_id, fb->width, fb->height, fb->bpp, fb->depth, fb->pitch);
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printf("Template framebuffer is %u: %ux%u %ubpp %ub depth %u pitch\n", fb->fb_id, fb->width, fb->height, fb->bpp, fb->depth, fb->pitch);
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printf("Template framebuffer is %u: %ux%u fourcc:%u mod:%u flags:%u\n", fb->fb_id, fb->width, fb->height, fb->pixel_format, fb->modifier, fb->flags);
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//printf("Template framebuffer is %u: %ux%u fourcc:%u mod:%u flags:%u\n", fb->fb_id, fb->width, fb->height, fb->pixel_format, fb->modifier, fb->flags);
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printf("handles %u %u %u %u\n", fb->handles[0], fb->handles[1], fb->handles[2], fb->handles[3]);
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//printf("handles %u %u %u %u\n", fb->handles[0], fb->handles[1], fb->handles[2], fb->handles[3]);
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printf("offsets %u %u %u %u\n", fb->offsets[0], fb->offsets[1], fb->offsets[2], fb->offsets[3]);
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//printf("offsets %u %u %u %u\n", fb->offsets[0], fb->offsets[1], fb->offsets[2], fb->offsets[3]);
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printf("pitches %u %u %u %u\n", fb->pitches[0], fb->pitches[1], fb->pitches[2], fb->pitches[3]);
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//printf("pitches %u %u %u %u\n", fb->pitches[0], fb->pitches[1], fb->pitches[2], fb->pitches[3]);
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printf("format %s, modifier %s:%s\n", drmGetFormatName(fb->pixel_format), drmGetFormatModifierVendor(fb->modifier), drmGetFormatModifierName(fb->modifier));
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//printf("format %s, modifier %s:%s\n", drmGetFormatName(fb->pixel_format), drmGetFormatModifierVendor(fb->modifier), drmGetFormatModifierName(fb->modifier));
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if (!fb->handles[0]) {
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if (!fb->handle) {
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fprintf(stderr, "No handle set on framebuffer: maybe you need some additional capabilities?\n");
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fprintf(stderr, "No handle set on framebuffer: maybe you need some additional capabilities?\n");
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goto cleanup;
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goto cleanup;
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}
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}
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|
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int fd = -1;
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int ioctl_err = 0;
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err = drmPrimeHandleToFD(drmfd, fb->handles[0], O_RDONLY, &fd);
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struct drm_gem_flink flink;
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if (err < 0 || fd < 0) {
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flink.handle = fb->handle;
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perror("Failed to get PRIME fd from framebuffer handle");
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if (ioctl_err = drmIoctl(drmfd, DRM_IOCTL_GEM_FLINK, &flink)) {
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fprintf(stderr, "DRM ioctl error %d on line %d\n", ioctl_err, __LINE__);
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goto cleanup;
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}
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}
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struct drm_gem_open open_arg;
|
||||||
//size_t buflen = fb->width * fb->height * fb->bpp / 8;
|
open_arg.name = flink.name;
|
||||||
size_t buflen = fb->width * fb->height * 32 / 8;
|
if (ioctl_err = drmIoctl(drmfd, DRM_IOCTL_GEM_OPEN, &open_arg)) {
|
||||||
char *buf = malloc(buflen);
|
fprintf(stderr, "DRM ioctl error %d on line %d\n", ioctl_err, __LINE__);
|
||||||
char *mapped = mmap(NULL, buflen, PROT_READ, MAP_SHARED, fd, 0);
|
goto cleanup;
|
||||||
|
}
|
||||||
|
off_t mmap_offset = 0;
|
||||||
|
size_t mmap_size = 0;
|
||||||
|
printf("drm driver is %s\n", drm_ver->name);
|
||||||
|
if (strcmp(drm_ver->name, "i915") == 0) {
|
||||||
|
struct drm_i915_gem_mmap_gtt mmap_arg;
|
||||||
|
mmap_arg.handle = open_arg.handle;
|
||||||
|
if (ioctl_err = drmIoctl(drmfd, DRM_IOCTL_I915_GEM_MMAP_GTT, &mmap_arg)) {
|
||||||
|
fprintf(stderr, "DRM ioctl error %d on line %d\n", ioctl_err, __LINE__);
|
||||||
|
goto cleanup;
|
||||||
|
}
|
||||||
|
mmap_size = open_arg.size;
|
||||||
|
mmap_offset = mmap_arg.offset;
|
||||||
|
}
|
||||||
|
else if (strcmp(drm_ver->name, "amdgpu") == 0) {
|
||||||
|
union drm_amdgpu_gem_mmap mmap_arg;
|
||||||
|
memset(&mmap_arg, 0, sizeof(mmap_arg));
|
||||||
|
mmap_arg.in.handle = open_arg.handle;
|
||||||
|
if (ioctl_err = drmIoctl(drmfd, DRM_IOCTL_AMDGPU_GEM_MMAP, &mmap_arg)) {
|
||||||
|
fprintf(stderr, "DRM ioctl error %d on line %d\n", ioctl_err, __LINE__);
|
||||||
|
goto cleanup;
|
||||||
|
}
|
||||||
|
mmap_size = open_arg.size;
|
||||||
|
mmap_offset = mmap_arg.out.addr_ptr;
|
||||||
|
}
|
||||||
|
else {
|
||||||
|
fprintf(stderr, "Unimplemented drm driver\n");
|
||||||
|
goto cleanup;
|
||||||
|
}
|
||||||
|
printf("mapping with size = %d, offset = %d, drmfd = %d\n", mmap_size, mmap_offset, drmfd);
|
||||||
|
char *mapped = mmap(NULL, mmap_size, PROT_READ, MAP_SHARED, drmfd, mmap_offset);
|
||||||
if (mapped == MAP_FAILED) {
|
if (mapped == MAP_FAILED) {
|
||||||
perror("mmap");
|
perror("mmap");
|
||||||
goto cleanup;
|
goto cleanup;
|
||||||
}
|
}
|
||||||
memcpy(buf, mapped, buflen);
|
|
||||||
|
size_t buflen = fb->width * fb->height * 32 / 8;
|
||||||
|
char *buf = malloc(buflen);
|
||||||
|
memset(buf, 0, buflen);
|
||||||
|
char *buf2 = malloc(buflen);
|
||||||
|
memset(buf2, 0, buflen);
|
||||||
|
//memcpy(buf, mapped, buflen);
|
||||||
|
|
||||||
|
//cairo_surface_t *surface = cairo_image_surface_create_for_data(buf, CAIRO_FORMAT_RGB24, fb->width, fb->height, fb->pitch);
|
||||||
|
//cairo_surface_write_to_png(surface, "/tmp/test-1.png");
|
||||||
|
//cairo_surface_destroy(surface);
|
||||||
|
|
||||||
//unlink("/tmp/1.raw");
|
//unlink("/tmp/1.raw");
|
||||||
//write(open("/tmp/1.raw", O_WRONLY | O_CREAT, 00644), buf, buflen);
|
//write(open("/tmp/1.raw", O_WRONLY | O_CREAT, 00644), buf, buflen);
|
||||||
|
|
||||||
|
resolution.x = fb->width;
|
||||||
|
resolution.y = fb->height;
|
||||||
rfbScreenInfoPtr server=rfbGetScreen(0,NULL,fb->width,fb->height,8,3,32/8);
|
rfbScreenInfoPtr server=rfbGetScreen(0,NULL,fb->width,fb->height,8,3,32/8);
|
||||||
if(!server)
|
if(!server)
|
||||||
return 1;
|
return 1;
|
||||||
server->frameBuffer=buf+8;
|
server->desktopName = "kmsvnc";
|
||||||
|
server->frameBuffer = buf;
|
||||||
|
server->port = 5900;
|
||||||
|
//server->listenInterface = inet_addr("127.0.0.1");
|
||||||
|
server->ipv6port = 0;
|
||||||
|
server->listen6Interface = NULL;
|
||||||
|
server->alwaysShared = (1==1);
|
||||||
|
server->kbdAddEvent = rfb_key_hook;
|
||||||
|
server->ptrAddEvent = rfb_ptr_hook;
|
||||||
rfbInitServer(server);
|
rfbInitServer(server);
|
||||||
rfbRunEventLoop(server,-1,FALSE);
|
//rfbRunEventLoop(server,40000,FALSE);
|
||||||
return(0);
|
long usec;
|
||||||
|
while (rfbIsActive(server)) {
|
||||||
|
if (server->clientHead && TimeToTakePicture()) {
|
||||||
|
drm_wait_vblank(drmfd);
|
||||||
|
// still tearing
|
||||||
|
memcpy(buf2, mapped, buflen);
|
||||||
|
convert_bgrx_to_rgb(buf2, fb->width, fb->height, buf);
|
||||||
|
rfbMarkRectAsModified(server, 0, 0, fb->width, fb->height);
|
||||||
|
}
|
||||||
|
usec = server->deferUpdateTime*1000;
|
||||||
|
rfbProcessEvents(server,usec);
|
||||||
|
}
|
||||||
|
|
||||||
|
if (drm_ver != NULL) drmFreeVersion(drm_ver);
|
||||||
|
if (fb != NULL) drmModeFreeFB(fb);
|
||||||
|
if (uinput_fd > 0) {
|
||||||
|
ioctl(uinput_fd, UI_DEV_DESTROY);
|
||||||
|
close(uinput_fd);
|
||||||
|
}
|
||||||
|
close(drmfd);
|
||||||
|
return 0;
|
||||||
|
|
||||||
cleanup:
|
cleanup:
|
||||||
|
if (drm_ver != NULL) drmFreeVersion(drm_ver);
|
||||||
|
if (fb != NULL) drmModeFreeFB(fb);
|
||||||
|
if (uinput_fd > 0) {
|
||||||
|
ioctl(uinput_fd, UI_DEV_DESTROY);
|
||||||
|
close(uinput_fd);
|
||||||
|
}
|
||||||
close(drmfd);
|
close(drmfd);
|
||||||
return 1;
|
return 1;
|
||||||
|
|
||||||
}
|
}
|
||||||
Loading…
Reference in a new issue