Initial commit
This commit is contained in:
Twaik Yont
parent
5b4bf8ea1b
commit
40e3051046
190
backend-x11.c
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190
backend-x11.c
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#define _GNU_SOURCE
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#include "backend.h"
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#include <wayland-server.h>
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#include <X11/Xlib.h>
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#include <linux/input.h>
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#include <EGL/egl.h>
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#include <X11/Xlib-xcb.h>
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#include <xkbcommon/xkbcommon-x11.h>
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#include <sys/mman.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <string.h>
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#include <stdlib.h>
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#include <time.h>
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#include <stdio.h>
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#include <poll.h>
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#define WINDOW_WIDTH 1024
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#define WINDOW_HEIGHT 600
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static struct {
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Window window;
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EGLContext context;
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EGLSurface surface;
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} window;
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static Display *x_display;
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static EGLDisplay egl_display;
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static struct callbacks callbacks;
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static xcb_connection_t *xcb_connection;
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static int32_t keyboard_device_id;
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static struct xkb_keymap *keymap;
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static struct xkb_state *state;
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static void create_window (void) {
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// setup EGL
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static EGLint ctxattr[] = {
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EGL_CONTEXT_CLIENT_VERSION, 2, // Request opengl ES2.0
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EGL_NONE
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};
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static const EGLint attribs[] = {
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EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
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EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
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EGL_BLUE_SIZE, 8,
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EGL_GREEN_SIZE, 8,
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EGL_RED_SIZE, 8,
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EGL_NONE
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};
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EGLConfig config;
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EGLint num_configs_returned;
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eglChooseConfig (egl_display, attribs, &config, 1, &num_configs_returned);
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// get the visual from the EGL config
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EGLint visual_id;
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eglGetConfigAttrib (egl_display, config, EGL_NATIVE_VISUAL_ID, &visual_id);
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XVisualInfo visual_template;
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visual_template.visualid = visual_id;
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int num_visuals_returned;
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XVisualInfo *visual = XGetVisualInfo (x_display, VisualIDMask, &visual_template, &num_visuals_returned);
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// create a window
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XSetWindowAttributes window_attributes;
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window_attributes.event_mask = ExposureMask | StructureNotifyMask | KeyPressMask | KeyReleaseMask | ButtonPressMask | ButtonReleaseMask | PointerMotionMask | EnterWindowMask | LeaveWindowMask | FocusChangeMask;
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window_attributes.colormap = XCreateColormap (x_display, RootWindow(x_display,DefaultScreen(x_display)), visual->visual, AllocNone);
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window.window = XCreateWindow (
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x_display,
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RootWindow(x_display, DefaultScreen(x_display)),
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0, 0,
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WINDOW_WIDTH, WINDOW_HEIGHT,
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0, // border width
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visual->depth, // depth
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InputOutput, // class
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visual->visual, // visual
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CWEventMask|CWColormap, // attribute mask
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&window_attributes // attributes
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);
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// EGL context and surface
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eglBindAPI (EGL_OPENGL_ES_API);
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window.context = eglCreateContext (egl_display, config, EGL_NO_CONTEXT, ctxattr);
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window.surface = eglCreateWindowSurface (egl_display, config, window.window, NULL);
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eglMakeCurrent (egl_display, window.surface, window.surface, window.context);
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XFree (visual);
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XMapWindow (x_display, window.window);
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}
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void backend_init (struct callbacks *_callbacks) {
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callbacks = *_callbacks;
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x_display = XOpenDisplay (NULL);
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xcb_connection = XGetXCBConnection (x_display);
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struct xkb_context *context = xkb_context_new (XKB_CONTEXT_NO_FLAGS);
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xkb_x11_setup_xkb_extension (xcb_connection, XKB_X11_MIN_MAJOR_XKB_VERSION, XKB_X11_MIN_MINOR_XKB_VERSION, 0, NULL, NULL, NULL, NULL);
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keyboard_device_id = xkb_x11_get_core_keyboard_device_id (xcb_connection);
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keymap = xkb_x11_keymap_new_from_device (context, xcb_connection, keyboard_device_id, XKB_KEYMAP_COMPILE_NO_FLAGS);
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state = xkb_x11_state_new_from_device (keymap, xcb_connection, keyboard_device_id);
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egl_display = eglGetDisplay (x_display);
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eglInitialize (egl_display, NULL, NULL);
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create_window ();
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}
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EGLDisplay backend_get_egl_display (void) {
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return egl_display;
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}
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void backend_swap_buffers (void) {
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eglSwapBuffers (egl_display, window.surface);
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}
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static void update_modifiers (void) {
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struct modifier_state modifier_state;
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modifier_state.depressed = xkb_state_serialize_mods (state, XKB_STATE_MODS_DEPRESSED);
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modifier_state.latched = xkb_state_serialize_mods (state, XKB_STATE_MODS_LATCHED);
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modifier_state.locked = xkb_state_serialize_mods (state, XKB_STATE_MODS_LOCKED);
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modifier_state.group = xkb_state_serialize_layout (state, XKB_STATE_LAYOUT_EFFECTIVE);
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callbacks.modifiers (modifier_state);
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}
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void backend_dispatch_nonblocking (void) {
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XEvent event;
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while (XPending(x_display)) {
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XNextEvent (x_display, &event);
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if (event.type == ConfigureNotify) {
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callbacks.resize (event.xconfigure.width, event.xconfigure.height);
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}
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else if (event.type == Expose) {
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callbacks.draw ();
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}
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else if (event.type == MotionNotify) {
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callbacks.mouse_motion (event.xbutton.x, event.xbutton.y);
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}
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else if (event.type == ButtonPress) {
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if (event.xbutton.button == Button1)
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callbacks.mouse_button (BTN_LEFT, WL_POINTER_BUTTON_STATE_PRESSED);
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else if (event.xbutton.button == Button2)
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callbacks.mouse_button (BTN_MIDDLE, WL_POINTER_BUTTON_STATE_PRESSED);
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else if (event.xbutton.button == Button3)
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callbacks.mouse_button (BTN_RIGHT, WL_POINTER_BUTTON_STATE_PRESSED);
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}
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else if (event.type == ButtonRelease) {
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if (event.xbutton.button == Button1)
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callbacks.mouse_button (BTN_LEFT, WL_POINTER_BUTTON_STATE_RELEASED);
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else if (event.xbutton.button == Button2)
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callbacks.mouse_button (BTN_MIDDLE, WL_POINTER_BUTTON_STATE_RELEASED);
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else if (event.xbutton.button == Button3)
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callbacks.mouse_button (BTN_RIGHT, WL_POINTER_BUTTON_STATE_RELEASED);
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}
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else if (event.type == KeyPress) {
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callbacks.key (event.xkey.keycode - 8, WL_KEYBOARD_KEY_STATE_PRESSED);
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xkb_state_update_key (state, event.xkey.keycode, XKB_KEY_DOWN);
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update_modifiers ();
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}
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else if (event.type == KeyRelease) {
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callbacks.key (event.xkey.keycode - 8, WL_KEYBOARD_KEY_STATE_RELEASED);
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xkb_state_update_key (state, event.xkey.keycode, XKB_KEY_UP);
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update_modifiers ();
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}
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else if (event.type == FocusIn) {
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xkb_state_unref (state);
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state = xkb_x11_state_new_from_device (keymap, xcb_connection, keyboard_device_id);
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update_modifiers ();
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}
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}
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}
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void backend_wait_for_events (int wayland_fd) {
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struct pollfd fds[2] = {{ConnectionNumber(x_display), POLLIN}, {wayland_fd, POLLIN}};
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poll (fds, 2, -1);
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}
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void backend_get_keymap (int *fd, int *size) {
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char *string = xkb_keymap_get_as_string (keymap, XKB_KEYMAP_FORMAT_TEXT_V1);
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*size = strlen (string) + 1;
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char *xdg_runtime_dir = getenv ("XDG_RUNTIME_DIR");
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*fd = open (xdg_runtime_dir, O_TMPFILE|O_RDWR|O_EXCL, 0600);
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ftruncate (*fd, *size);
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char *map = mmap (NULL, *size, PROT_READ|PROT_WRITE, MAP_SHARED, *fd, 0);
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strcpy (map, string);
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munmap (map, *size);
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free (string);
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}
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long backend_get_timestamp (void) {
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struct timespec t;
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clock_gettime (CLOCK_MONOTONIC, &t);
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return t.tv_sec * 1000 + t.tv_nsec / 1000000;
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}
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25
backend.h
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25
backend.h
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#include <EGL/egl.h>
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#include <GLES2/gl2.h>
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struct modifier_state {
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uint32_t depressed, latched, locked, group;
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};
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struct callbacks {
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void (*resize) (int width, int height);
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void (*draw) (void);
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void (*mouse_motion) (int x, int y);
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void (*mouse_button) (int button, int state);
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void (*key) (int key, int state);
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void (*modifiers) (struct modifier_state modifier_state);
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};
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void backend_init (struct callbacks *callbacks);
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EGLDisplay backend_get_egl_display (void);
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void backend_swap_buffers (void);
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void backend_dispatch_nonblocking (void);
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void backend_wait_for_events (int wayland_fd);
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void backend_get_keymap (int *fd, int *size);
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long backend_get_timestamp (void);
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void glDrawPixels(GLsizei width, GLsizei height, GLenum format, GLenum type, const GLvoid * data);
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320
main.c
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320
main.c
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#ifndef _GNU_SOURCE
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#define _GNU_SOURCE
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#endif
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#ifndef __USE_GNU
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#define __USE_GNU
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#endif
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#include <execinfo.h>
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#include <signal.h>
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#include <unistd.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <stdint.h>
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#include <wayland-server.h>
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#include "backend.h"
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#define static
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void handler(int sig) {
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void *array[10];
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size_t size;
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// get void*'s for all entries on the stack
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size = backtrace(array, 10);
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// print out all the frames to stderr
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fprintf(stderr, "Error: signal %d:\n", sig);
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backtrace_symbols_fd(array, size, STDERR_FILENO);
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exit(1);
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}
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#define BINDFUNC(interface, implementation) \
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static void interface##_bind (struct wl_client *client, void *data, uint32_t version, uint32_t id) { \
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printf ("bind: " #interface "\n"); \
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struct wl_resource *resource = wl_resource_create (client, &interface##_interface, 1, id); \
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if (resource == NULL) { \
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wl_client_post_no_memory(client); \
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return; \
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} \
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wl_resource_set_implementation (resource, &implementation, NULL, NULL); \
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}
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struct lorie_composiror {
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struct wl_display *display;
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struct wl_list clients;
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struct wl_list surfaces;
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struct surface *main_surface;
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struct modifier_state modifier_state;
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uint32_t width, height;
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} c = {0};
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struct client {
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struct wl_client *client;
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struct wl_resource *pointer;
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struct wl_resource *keyboard;
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struct wl_list link;
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};
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static struct client *get_client (struct wl_client *_client) {
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struct client *client;
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wl_list_for_each (client, &c.clients, link) {
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if (client->client == _client) return client;
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}
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client = calloc (1, sizeof(struct client));
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client->client = _client;
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wl_list_insert (&c.clients, &client->link);
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return client;
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}
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struct surface {
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struct wl_resource *surface;
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//struct wl_resource *xdg_surface;
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struct wl_resource *buffer;
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struct wl_resource *frame_callback;
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//int x, y;
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//struct texture texture;
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struct client *client;
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struct wl_list link;
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};
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struct lorie_client {
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struct wl_client *client;
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struct wl_resource *pointer;
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struct wl_resource *keyboard;
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struct wl_list link;
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};
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void *null = NULL;
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// region
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/*No op*/ static void region_destroy (struct wl_client *client, struct wl_resource *resource) {}
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/*No op*/ static void region_add (struct wl_client *client, struct wl_resource *resource, int32_t x, int32_t y, int32_t width, int32_t height) {}
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/*No op*/ static void region_subtract (struct wl_client *client, struct wl_resource *resource, int32_t x, int32_t y, int32_t width, int32_t height) {}
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/*No op*/ static struct wl_region_interface region_interface = {®ion_destroy, ®ion_add, ®ion_subtract};
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// surface
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/*No op*/ static void surface_destroy (struct wl_client *client, struct wl_resource *resource) {}
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static void surface_attach (struct wl_client *client, struct wl_resource *resource, struct wl_resource *buffer, int32_t x, int32_t y) {
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struct surface *surface = wl_resource_get_user_data (resource);
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surface->buffer = buffer;
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c.main_surface = surface;
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}
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static void surface_damage (struct wl_client *client, struct wl_resource *resource, int32_t x, int32_t y, int32_t width, int32_t height) {
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printf("Surface damage\n");
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}
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static void surface_frame (struct wl_client *client, struct wl_resource *resource, uint32_t callback) {
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struct surface *surface = wl_resource_get_user_data (resource);
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surface->frame_callback = wl_resource_create (client, &wl_callback_interface, 1, callback);
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}
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/*No op*/ static void surface_set_opaque_region (struct wl_client *client, struct wl_resource *resource, struct wl_resource *region) {}
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/*No op*/ static void surface_set_input_region (struct wl_client *client, struct wl_resource *resource, struct wl_resource *region) {}
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static void surface_commit (struct wl_client *client, struct wl_resource *resource) {
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printf("Surface commit\n");
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}
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/*No op*/ static void surface_set_buffer_transform (struct wl_client *client, struct wl_resource *resource, int32_t transform) {}
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/*No op*/ static void surface_set_buffer_scale (struct wl_client *client, struct wl_resource *resource, int32_t scale) {}
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static void surface_delete (struct wl_resource *resource) {
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struct surface *surface = wl_resource_get_user_data (resource);
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if (c.main_surface == surface) c.main_surface = NULL;
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wl_list_remove (&surface->link);
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free (surface);
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}
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static struct wl_surface_interface surface_interface = {&surface_destroy, &surface_attach, &surface_damage, &surface_frame, &surface_set_opaque_region, &surface_set_input_region, &surface_commit, &surface_set_buffer_transform, &surface_set_buffer_scale};
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// compositor
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static void compositor_create_surface (struct wl_client *client, struct wl_resource *resource, uint32_t id) {
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struct surface *surface = calloc (1, sizeof(struct surface));
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surface->surface = wl_resource_create (client, &wl_surface_interface, 3, id);
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wl_resource_set_implementation (surface->surface, &surface_interface, surface, &surface_delete);
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surface->client = get_client (client);
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wl_list_insert (&c.surfaces, &surface->link);
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}
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static void compositor_create_region (struct wl_client *client, struct wl_resource *resource, uint32_t id) {
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struct wl_resource *region = wl_resource_create (client, &wl_region_interface, 1, id);
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wl_resource_set_implementation (region, ®ion_interface, NULL, NULL);
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}
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static struct wl_compositor_interface compositor_interface = {&compositor_create_surface, &compositor_create_region};
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BINDFUNC(wl_compositor, compositor_interface);
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// shell surface
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/*No op*/ static void shell_surface_pong (struct wl_client *client, struct wl_resource *resource, uint32_t serial) {}
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/*No op*/ static void shell_surface_move (struct wl_client *client, struct wl_resource *resource, struct wl_resource *seat, uint32_t serial) {}
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/*No op*/ static void shell_surface_resize (struct wl_client *client, struct wl_resource *resource, struct wl_resource *seat, uint32_t serial, uint32_t edges) {}
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/*No op*/ static void shell_surface_set_toplevel (struct wl_client *client, struct wl_resource *resource) {}
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/*No op*/ static void shell_surface_set_transient (struct wl_client *client, struct wl_resource *resource, struct wl_resource *parent, int32_t x, int32_t y, uint32_t flags) {}
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/*No op*/ static void shell_surface_set_fullscreen (struct wl_client *client, struct wl_resource *resource, uint32_t method, uint32_t framerate, struct wl_resource *output) {}
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/*No op*/ static void shell_surface_set_popup (struct wl_client *client, struct wl_resource *resource, struct wl_resource *seat, uint32_t serial, struct wl_resource *parent, int32_t x, int32_t y, uint32_t flags) {}
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/*No op*/ static void shell_surface_set_maximized (struct wl_client *client, struct wl_resource *resource, struct wl_resource *output) {}
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/*No op*/ static void shell_surface_set_title (struct wl_client *client, struct wl_resource *resource, const char *title) {}
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/*No op*/ static void shell_surface_set_class (struct wl_client *client, struct wl_resource *resource, const char *class_) {}
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/*No op*/ static struct wl_shell_surface_interface shell_surface_interface = {&shell_surface_pong, &shell_surface_move, &shell_surface_resize, &shell_surface_set_toplevel, &shell_surface_set_transient, &shell_surface_set_fullscreen, &shell_surface_set_popup, &shell_surface_set_maximized, &shell_surface_set_title, &shell_surface_set_class};
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// wl shell
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static void shell_get_shell_surface (struct wl_client *client, struct wl_resource *resource, uint32_t id, struct wl_resource *surface) {
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struct wl_resource *shell_surface = wl_resource_create (client, &wl_shell_surface_interface, 1, id);
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wl_resource_set_implementation (shell_surface, &shell_surface_interface, NULL, NULL);
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wl_shell_surface_send_configure(shell_surface, 0, c.width, c.height);
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}
|
||||
static struct wl_shell_interface shell_interface = {&shell_get_shell_surface};
|
||||
BINDFUNC(wl_shell, shell_interface);
|
||||
|
||||
// pointer
|
||||
/*No op*/ static void pointer_set_cursor (struct wl_client *client, struct wl_resource *resource, uint32_t serial, struct wl_resource *_surface, int32_t hotspot_x, int32_t hotspot_y) {}
|
||||
/*No op*/ static void pointer_release (struct wl_client *client, struct wl_resource *resource) {}
|
||||
/*No op*/ static struct wl_pointer_interface pointer_interface = {&pointer_set_cursor, &pointer_release};
|
||||
|
||||
// keyboard
|
||||
/*No op*/ static void keyboard_release (struct wl_client *client, struct wl_resource *resource) {}
|
||||
/*No op*/ static struct wl_keyboard_interface keyboard_interface = {&keyboard_release};
|
||||
|
||||
// seat
|
||||
static void seat_get_pointer (struct wl_client *client, struct wl_resource *resource, uint32_t id) {
|
||||
struct wl_resource *pointer = wl_resource_create (client, &wl_pointer_interface, 1, id);
|
||||
wl_resource_set_implementation (pointer, &pointer_interface, NULL, NULL);
|
||||
get_client(client)->pointer = pointer;
|
||||
}
|
||||
static void seat_get_keyboard (struct wl_client *client, struct wl_resource *resource, uint32_t id) {
|
||||
struct wl_resource *keyboard = wl_resource_create (client, &wl_keyboard_interface, 1, id);
|
||||
wl_resource_set_implementation (keyboard, &keyboard_interface, NULL, NULL);
|
||||
//get_client(client)->keyboard = keyboard;
|
||||
//int fd, size;
|
||||
//backend_get_keymap (&fd, &size);
|
||||
//wl_keyboard_send_keymap (keyboard, WL_KEYBOARD_KEYMAP_FORMAT_XKB_V1, fd, size);
|
||||
//close (fd);
|
||||
}
|
||||
/*No op*/ static void seat_get_touch (struct wl_client *client, struct wl_resource *resource, uint32_t id) {}
|
||||
static struct wl_seat_interface seat_interface = {&seat_get_pointer, &seat_get_keyboard, &seat_get_touch};
|
||||
static void wl_seat_bind (struct wl_client *client, void *data, uint32_t version, uint32_t id) {
|
||||
printf ("bind: wl_seat\n");
|
||||
struct wl_resource *seat = wl_resource_create (client, &wl_seat_interface, 1, id);
|
||||
wl_resource_set_implementation (seat, &seat_interface, NULL, NULL);
|
||||
wl_seat_send_capabilities (seat, WL_SEAT_CAPABILITY_POINTER|WL_SEAT_CAPABILITY_KEYBOARD);
|
||||
}
|
||||
|
||||
static void
|
||||
output_release(struct wl_client *client, struct wl_resource *resource)
|
||||
{
|
||||
wl_resource_destroy(resource);
|
||||
}
|
||||
static const struct wl_output_interface output_interface = {
|
||||
output_release,
|
||||
};
|
||||
|
||||
static void
|
||||
wl_output_bind(struct wl_client *client, void *data, uint32_t version, uint32_t id)
|
||||
{
|
||||
int DPI = 240;
|
||||
struct wl_resource *resource = wl_resource_create(client, &wl_output_interface, version, id);
|
||||
if (resource == NULL) {
|
||||
wl_client_post_no_memory(client);
|
||||
return;
|
||||
}
|
||||
|
||||
wl_resource_set_implementation(resource, &output_interface, NULL, NULL);
|
||||
|
||||
int mm_width = c.width/DPI*25;
|
||||
int mm_height = c.height/DPI*25;
|
||||
wl_output_send_geometry(resource, c.width, c.height, mm_width, mm_height, 0, "non-weston", "none", 0);
|
||||
if (version >= WL_OUTPUT_SCALE_SINCE_VERSION)
|
||||
wl_output_send_scale(resource, 1.0);
|
||||
wl_output_send_mode(resource, 3, c.width, c.height, 60000);
|
||||
|
||||
if (version >= WL_OUTPUT_DONE_SINCE_VERSION)
|
||||
wl_output_send_done(resource);
|
||||
}
|
||||
|
||||
// backend callbacks
|
||||
/*No op*/ static void handle_resize_event (int width, int height) {}
|
||||
/*No op*/ static void handle_draw_event (void) {}
|
||||
static void handle_mouse_motion_event (int x, int y) {
|
||||
if (!c.main_surface || !c.main_surface->client->pointer) return;
|
||||
wl_fixed_t surface_x = wl_fixed_from_double (x);
|
||||
wl_fixed_t surface_y = wl_fixed_from_double (y);
|
||||
wl_pointer_send_motion (c.main_surface->client->pointer, backend_get_timestamp(), surface_x, surface_y);
|
||||
}
|
||||
static void handle_mouse_button_event (int button, int state) {
|
||||
if (!c.main_surface || !c.main_surface->client->pointer) return;
|
||||
wl_pointer_send_button (c.main_surface->client->pointer, 0, backend_get_timestamp(), button, state);
|
||||
}
|
||||
static void handle_key_event (int key, int state) {
|
||||
//if (!c.main_surface || !c.main_surface->client->keyboard) return;
|
||||
//wl_keyboard_send_key (c.main_surface->client->keyboard, 0, backend_get_timestamp(), key, state);
|
||||
}
|
||||
static void handle_modifiers_changed (struct modifier_state new_state) {
|
||||
//if (new_state.depressed == c.modifier_state.depressed && new_state.latched == c.modifier_state.latched && new_state.locked == c.modifier_state.locked && new_state.group == c.modifier_state.group) return;
|
||||
//c.modifier_state = new_state;
|
||||
//if (c.main_surface && c.main_surface->client->keyboard)
|
||||
// wl_keyboard_send_modifiers (c.main_surface->client->keyboard, 0, c.modifier_state.depressed, c.modifier_state.latched, c.modifier_state.locked, c.modifier_state.group);
|
||||
}
|
||||
static struct callbacks callbacks = {&handle_resize_event, &handle_draw_event, &handle_mouse_motion_event, &handle_mouse_button_event, &handle_key_event, &handle_modifiers_changed};
|
||||
|
||||
void glDrawPixels(GLsizei width, GLsizei height, GLenum format, GLenum type, const GLvoid * data);
|
||||
|
||||
static void draw (void) {
|
||||
glClearColor (1, 1, 0, 1);
|
||||
glClear (GL_COLOR_BUFFER_BIT);
|
||||
//glLoadIdentity();
|
||||
|
||||
struct surface *surface = c.main_surface;
|
||||
if (!surface) {
|
||||
return;
|
||||
}
|
||||
//wl_list_for_each_reverse (surface, &c.surfaces, link) {
|
||||
if (surface) {
|
||||
struct wl_shm_buffer *shm_buffer = wl_shm_buffer_get (surface->buffer);
|
||||
if (shm_buffer == NULL) return;
|
||||
//if (shm_buffer == NULL) continue;
|
||||
uint32_t width = wl_shm_buffer_get_width (shm_buffer);
|
||||
uint32_t height = wl_shm_buffer_get_height (shm_buffer);
|
||||
void *data = wl_shm_buffer_get_data (shm_buffer);
|
||||
if (data) {
|
||||
printf("Showing %dx%d window\n", width, height);
|
||||
glDrawPixels(width, height, GL_RGBA, GL_UNSIGNED_BYTE, data);
|
||||
backend_swap_buffers();
|
||||
wl_buffer_send_release (surface->buffer);
|
||||
usleep(500000);
|
||||
}
|
||||
}
|
||||
|
||||
glFlush ();
|
||||
backend_swap_buffers ();
|
||||
}
|
||||
|
||||
int main(void) {
|
||||
printf("Starting lorie server\n");
|
||||
signal(SIGSEGV, handler);
|
||||
backend_init (&callbacks);
|
||||
//setenv("WAYLAND_DEBUG", "1", 1);
|
||||
memset(&c, 0, sizeof(c));
|
||||
wl_list_init (&c.clients);
|
||||
wl_list_init (&c.surfaces);
|
||||
c.width = 1024;
|
||||
c.height = 600;
|
||||
c.display = wl_display_create ();
|
||||
wl_display_add_socket_auto (c.display);
|
||||
|
||||
wl_global_create (c.display, &wl_compositor_interface, 4, NULL, &wl_compositor_bind);
|
||||
wl_global_create (c.display, &wl_shell_interface, 1, NULL, &wl_shell_bind);
|
||||
wl_global_create (c.display, &wl_seat_interface, 5, NULL, &wl_seat_bind);
|
||||
wl_global_create (c.display, &wl_output_interface, 3, NULL, &wl_output_bind);
|
||||
wl_display_init_shm (c.display);
|
||||
|
||||
struct wl_event_loop *event_loop = wl_display_get_event_loop (c.display);
|
||||
int wayland_fd = wl_event_loop_get_fd (event_loop);
|
||||
while (1) {
|
||||
wl_event_loop_dispatch (event_loop, 0);
|
||||
backend_dispatch_nonblocking ();
|
||||
wl_display_flush_clients (c.display);
|
||||
draw ();
|
||||
backend_wait_for_events (wayland_fd);
|
||||
}
|
||||
|
||||
|
||||
wl_display_destroy (c.display);
|
||||
return 0;
|
||||
}
|
||||
39
meson.build
Normal file
39
meson.build
Normal file
@ -0,0 +1,39 @@
|
||||
project(
|
||||
'xwayland_proxy',
|
||||
'c',
|
||||
version: '0.0.1',
|
||||
license: 'MIT',
|
||||
meson_version: '>=0.47.0',
|
||||
default_options: [
|
||||
'c_std=c11',
|
||||
'warning_level=1',
|
||||
'b_lundef=false',
|
||||
'prefix=/usr/local'
|
||||
],
|
||||
)
|
||||
|
||||
pkg = import('pkgconfig')
|
||||
compiler = meson.get_compiler('c')
|
||||
wayland_server = dependency('wayland-server', version: '>=1.16')
|
||||
wayland_client = dependency('wayland-client')
|
||||
egl = compiler.find_library('EGL')
|
||||
glesv2 = compiler.find_library('GLESv2')
|
||||
libx11 = dependency('x11')
|
||||
libxkbcommon = dependency('xkbcommon')
|
||||
libxkbcommon_x11 = dependency('xkbcommon-x11')
|
||||
libx11_xcb = dependency('x11-xcb')
|
||||
|
||||
incdirs = include_directories('.')
|
||||
proxy_srcs = [
|
||||
'backend-x11.c',
|
||||
'main.c',
|
||||
'renderer.c'
|
||||
]
|
||||
|
||||
proxy = executable(
|
||||
'proxy',
|
||||
sources: proxy_srcs,
|
||||
include_directories: incdirs,
|
||||
dependencies: [egl, glesv2, libx11, libx11_xcb, wayland_server, libxkbcommon, libxkbcommon_x11],
|
||||
link_args: ['-lm', '-g', '-rdynamic']
|
||||
)
|
||||
186
renderer.c
Normal file
186
renderer.c
Normal file
@ -0,0 +1,186 @@
|
||||
#include <stdio.h>
|
||||
#include <stdbool.h>
|
||||
#include <stdlib.h>
|
||||
#include <EGL/egl.h>
|
||||
#include <GLES2/gl2.h>
|
||||
|
||||
#define LOGI(...) (printf("(I): " __VA_ARGS__))
|
||||
#define LOGW(...) (printf("(W): " __VA_ARGS__))
|
||||
#define LOGE(...) (printf("(E): " __VA_ARGS__))
|
||||
|
||||
static GLuint gTextureProgram;
|
||||
static GLuint gvTexturePositionHandle;
|
||||
static GLuint gvTextureTexCoordsHandle;
|
||||
static GLuint gvTextureSamplerHandle;
|
||||
|
||||
static const char gSimpleVS[] =
|
||||
"attribute vec4 position;\n"
|
||||
"attribute vec2 texCoords;\n"
|
||||
"varying vec2 outTexCoords;\n"
|
||||
"\nvoid main(void) {\n"
|
||||
" outTexCoords = texCoords;\n"
|
||||
" gl_Position = position;\n"
|
||||
"}\n\n";
|
||||
static const char gSimpleFS[] =
|
||||
"precision mediump float;\n\n"
|
||||
"varying vec2 outTexCoords;\n"
|
||||
"uniform sampler2D texture;\n"
|
||||
"\nvoid main(void) {\n"
|
||||
" gl_FragColor = texture2D(texture, outTexCoords);\n"
|
||||
"}\n\n";
|
||||
|
||||
static void checkGlError(const char* op) {
|
||||
GLint error;
|
||||
for (error = glGetError(); error; error = glGetError()) {
|
||||
LOGE("after %s() glError (0x%x)\n", op, error);
|
||||
}
|
||||
}
|
||||
static GLuint loadShader(GLenum shaderType, const char* pSource) {
|
||||
GLuint shader = glCreateShader(shaderType);
|
||||
if (shader) {
|
||||
glShaderSource(shader, 1, &pSource, NULL);
|
||||
glCompileShader(shader);
|
||||
GLint compiled = 0;
|
||||
glGetShaderiv(shader, GL_COMPILE_STATUS, &compiled);
|
||||
if (!compiled) {
|
||||
GLint infoLen = 0;
|
||||
glGetShaderiv(shader, GL_INFO_LOG_LENGTH, &infoLen);
|
||||
if (infoLen) {
|
||||
char* buf = (char*) malloc(infoLen);
|
||||
if (buf) {
|
||||
glGetShaderInfoLog(shader, infoLen, NULL, buf);
|
||||
LOGE("Could not compile shader %d:\n%s\n",
|
||||
shaderType, buf);
|
||||
free(buf);
|
||||
}
|
||||
glDeleteShader(shader);
|
||||
shader = 0;
|
||||
}
|
||||
}
|
||||
}
|
||||
return shader;
|
||||
}
|
||||
|
||||
GLuint createProgram(const char* pVertexSource, const char* pFragmentSource) {
|
||||
GLuint vertexShader = loadShader(GL_VERTEX_SHADER, pVertexSource);
|
||||
if (!vertexShader) {
|
||||
return 0;
|
||||
}
|
||||
|
||||
GLuint pixelShader = loadShader(GL_FRAGMENT_SHADER, pFragmentSource);
|
||||
if (!pixelShader) {
|
||||
return 0;
|
||||
}
|
||||
|
||||
GLuint program = glCreateProgram();
|
||||
if (program) {
|
||||
glAttachShader(program, vertexShader);
|
||||
checkGlError("glAttachShader");
|
||||
glAttachShader(program, pixelShader);
|
||||
checkGlError("glAttachShader");
|
||||
glLinkProgram(program);
|
||||
GLint linkStatus = GL_FALSE;
|
||||
glGetProgramiv(program, GL_LINK_STATUS, &linkStatus);
|
||||
if (linkStatus != GL_TRUE) {
|
||||
GLint bufLength = 0;
|
||||
glGetProgramiv(program, GL_INFO_LOG_LENGTH, &bufLength);
|
||||
if (bufLength) {
|
||||
char* buf = (char*) malloc(bufLength);
|
||||
if (buf) {
|
||||
glGetProgramInfoLog(program, bufLength, NULL, buf);
|
||||
LOGE("Could not link program:\n%s\n", buf);
|
||||
free(buf);
|
||||
}
|
||||
}
|
||||
glDeleteProgram(program);
|
||||
program = 0;
|
||||
}
|
||||
}
|
||||
return program;
|
||||
}
|
||||
|
||||
bool setupGraphics(void) {
|
||||
|
||||
gTextureProgram = createProgram(gSimpleVS, gSimpleFS);
|
||||
if (!gTextureProgram) {
|
||||
return false;
|
||||
}
|
||||
gvTexturePositionHandle = glGetAttribLocation(gTextureProgram, "position"); checkGlError("glGetAttribLocation");
|
||||
gvTextureTexCoordsHandle = glGetAttribLocation(gTextureProgram, "texCoords"); checkGlError("glGetAttribLocation");
|
||||
gvTextureSamplerHandle = glGetUniformLocation(gTextureProgram, "texture"); checkGlError("glGetAttribLocation");
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
const GLfloat gTriangleVertices[] = { 0.0f, 0.5f, -0.5f, -0.5f,
|
||||
0.5f, -0.5f };
|
||||
|
||||
#define FLOAT_SIZE_BYTES 4;
|
||||
const GLint TRIANGLE_VERTICES_DATA_STRIDE_BYTES = 5 * FLOAT_SIZE_BYTES;
|
||||
const GLfloat gTriangleVerticesData[] = {
|
||||
// X, Y, Z, U, V
|
||||
-1.0f, 1.0f, 0, 0.f, 0.f,
|
||||
1.0f, 1.0f, 0, 1.f, 0.f,
|
||||
-1.0f, -1.0f, 0, 0.f, 1.f,
|
||||
1.0f, -1.0f, 0, 1.f, 1.f,
|
||||
};
|
||||
|
||||
void glDrawTex(void) {
|
||||
if (!gTextureProgram) {
|
||||
if(!setupGraphics()) {
|
||||
LOGE("Could not set up graphics.\n");
|
||||
return;
|
||||
}
|
||||
}
|
||||
glUseProgram(gTextureProgram); checkGlError("glUseProgram");
|
||||
|
||||
glVertexAttribPointer(gvTexturePositionHandle, 3, GL_FLOAT, GL_FALSE,
|
||||
TRIANGLE_VERTICES_DATA_STRIDE_BYTES, gTriangleVerticesData);
|
||||
checkGlError("glVertexAttribPointer");
|
||||
glVertexAttribPointer(gvTextureTexCoordsHandle, 2, GL_FLOAT, GL_FALSE,
|
||||
TRIANGLE_VERTICES_DATA_STRIDE_BYTES, &gTriangleVerticesData[3]);
|
||||
checkGlError("glVertexAttribPointer");
|
||||
glEnableVertexAttribArray(gvTexturePositionHandle);
|
||||
glEnableVertexAttribArray(gvTextureTexCoordsHandle);
|
||||
checkGlError("glEnableVertexAttribArray");
|
||||
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
|
||||
checkGlError("glDrawArrays");
|
||||
|
||||
glUseProgram(0); checkGlError("glUseProgram");
|
||||
}
|
||||
|
||||
static void glDrawTexCoords(float x0, float y0, float x1, float y1) {
|
||||
float coords[20] = {
|
||||
x0, -y0, 0.f, 0.f, 0.f,
|
||||
x1, -y0, 0.f, 1.f, 0.f,
|
||||
x0, -y1, 0.f, 0.f, 1.f,
|
||||
x1, -y1, 0.f, 1.f, 1.f
|
||||
};
|
||||
|
||||
glUseProgram(gTextureProgram); checkGlError("glUseProgram");
|
||||
|
||||
glVertexAttribPointer(gvTexturePositionHandle, 3, GL_FLOAT, GL_FALSE, TRIANGLE_VERTICES_DATA_STRIDE_BYTES, coords); checkGlError("glVertexAttribPointer");
|
||||
glVertexAttribPointer(gvTextureTexCoordsHandle, 2, GL_FLOAT, GL_FALSE, TRIANGLE_VERTICES_DATA_STRIDE_BYTES, &coords[3]); checkGlError("glVertexAttribPointer");
|
||||
glEnableVertexAttribArray(gvTexturePositionHandle); checkGlError("glEnableVertexAttribArray");
|
||||
glEnableVertexAttribArray(gvTextureTexCoordsHandle); checkGlError("glEnableVertexAttribArray");
|
||||
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4); checkGlError("glDrawArrays");
|
||||
|
||||
glUseProgram(0); checkGlError("glUseProgram");
|
||||
}
|
||||
|
||||
static GLuint gPixelsTexture;
|
||||
|
||||
void glDrawPixels(GLsizei width, GLsizei height, GLenum format, GLenum type, const GLvoid * data){
|
||||
if(!gPixelsTexture) glGenTextures(1, &gPixelsTexture);
|
||||
glActiveTexture(GL_TEXTURE0);
|
||||
glBindTexture(GL_TEXTURE_2D, gPixelsTexture);
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
|
||||
|
||||
glTexImage2D(GL_TEXTURE_2D, 0, format, width, height, 0, GL_RGBA, type, data);
|
||||
glDrawTex();
|
||||
//glDrawTexCoords(-1.0, -1.0, 1.0, 1.0);
|
||||
glBindTexture(GL_TEXTURE_2D, 0);
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user