Add EGL setup (unused for now).

1 files changed, 0 insertions, 464 deletions

diff --git a/src/client.c b/src/client.c
deleted file mode 100644
index 0b2bdec..0000000
--- a/src/client.c
+++ /dev/null
@@ -1,464 +0,0 @@
-#define _POSIX_C_SOURCE 200112L
-#include <assert.h>
-#include <epoxy/egl.h>
-#include <epoxy/gl.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <limits.h>
-#include <stdbool.h>
-#include <stdio.h>
-#include <string.h>
-#include <sys/mman.h>
-#include <time.h>
-#include <unistd.h>
-#include <wayland-client.h>
-#include <wayland-egl.h>
-#include <xkbcommon/xkbcommon.h>
-#include "xdg-shell-client-protocol.h"
-
-/* Shared memory support code */
-static void
-randname(char *buf)
-{
-    struct timespec ts;
-    clock_gettime(CLOCK_REALTIME, &ts);
-    long r = ts.tv_nsec;
-    for (int i = 0; i < 6; ++i) {
-        buf[i] = 'A'+(r&15)+(r&16)*2;
-        r >>= 5;
-    }
-}
-
-static int
-create_shm_file(void)
-{
-    int retries = 100;
-    do {
-        char name[] = "/wl_shm-XXXXXX";
-        randname(name + sizeof(name) - 7);
-        --retries;
-        int fd = shm_open(name, O_RDWR | O_CREAT | O_EXCL, 0600);
-        if (fd >= 0) {
-            shm_unlink(name);
-            return fd;
-        }
-    } while (retries > 0 && errno == EEXIST);
-    return -1;
-}
-
-static int
-allocate_shm_file(size_t size)
-{
-    int fd = create_shm_file();
-    if (fd < 0)
-        return -1;
-    int ret;
-    do {
-        ret = ftruncate(fd, size);
-    } while (ret < 0 && errno == EINTR);
-    if (ret < 0) {
-        close(fd);
-        return -1;
-    }
-    return fd;
-}
-
-/* Wayland code */
-struct client_state {
-    /* Globals */
-    struct wl_display *wl_display;
-    struct wl_registry *wl_registry;
-    struct wl_shm *wl_shm;
-    struct wl_compositor *wl_compositor;
-    struct wl_seat *wl_seat;
-    struct xdg_wm_base *xdg_wm_base;
-    /* Objects */
-    struct wl_surface *wl_surface;
-    struct wl_keyboard *wl_keyboard;
-    struct xdg_surface *xdg_surface;
-    struct xdg_toplevel *xdg_toplevel;
-    /* State */
-    float offset;
-    uint32_t last_frame;
-    int width;
-    int height;
-    bool closed;
-    /* Keyboard state */
-    struct xkb_state *xkb_state;
-    struct xkb_context *xkb_context;
-    struct xkb_keymap *xkb_keymap;
-};
-
-static void
-wl_buffer_release(void *data, struct wl_buffer *wl_buffer)
-{
-    /* Sent by the compositor when it's no longer using this buffer */
-    wl_buffer_destroy(wl_buffer);
-}
-
-static const struct wl_buffer_listener wl_buffer_listener = {
-    .release = wl_buffer_release,
-};
-
-static struct wl_buffer *
-draw_frame(struct client_state *state)
-{
-    const int width = state->width, height = state->height;
-    int stride = width * 4;
-    int size = stride * height;
-
-    int fd = allocate_shm_file(size);
-    if (fd == -1) {
-        return NULL;
-    }
-
-    uint32_t *data = mmap(NULL, size,
-            PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
-    if (data == MAP_FAILED) {
-        close(fd);
-        return NULL;
-    }
-
-    struct wl_shm_pool *pool = wl_shm_create_pool(state->wl_shm, fd, size);
-    struct wl_buffer *buffer = wl_shm_pool_create_buffer(pool, 0,
-            width, height, stride, WL_SHM_FORMAT_XRGB8888);
-    wl_shm_pool_destroy(pool);
-    close(fd);
-
-    /* Draw checkerboxed background */
-    int offset = (int)state->offset % 8;
-    for (int y = 0; y < height; ++y) {
-        for (int x = 0; x < width; ++x) {
-            if (((x + offset) + (y + offset) / 8 * 8) % 16 < 8)
-                data[y * width + x] = 0xFF666666;
-            else
-                data[y * width + x] = 0xFFEEEEEE;
-        }
-    }
-
-    munmap(data, size);
-    wl_buffer_add_listener(buffer, &wl_buffer_listener, NULL);
-    return buffer;
-}
-
-static void
-xdg_toplevel_configure(void *data,
-	struct xdg_toplevel *xdg_toplevel, int32_t width, int32_t height,
-	struct wl_array *states)
-{
-	struct client_state *state = data;
-	if (width == 0 || height == 0) {
-		/* Compositor is deferring to us */
-		return;
-	}
-	state->width = width;
-	state->height = height;
-}
-
-static void
-xdg_toplevel_close(void *data, struct xdg_toplevel *toplevel)
-{
-	struct client_state *state = data;
-	state->closed = true;
-}
-
-static const struct xdg_toplevel_listener xdg_toplevel_listener = {
-	.configure = xdg_toplevel_configure,
-	.close = xdg_toplevel_close
-};
-
-static void
-xdg_surface_configure(void *data,
-        struct xdg_surface *xdg_surface, uint32_t serial)
-{
-    struct client_state *state = data;
-    xdg_surface_ack_configure(xdg_surface, serial);
-
-    struct wl_buffer *buffer = draw_frame(state);
-    wl_surface_attach(state->wl_surface, buffer, 0, 0);
-    wl_surface_commit(state->wl_surface);
-}
-
-static const struct xdg_surface_listener xdg_surface_listener = {
-    .configure = xdg_surface_configure,
-};
-
-static void
-wl_keyboard_keymap(void *data, struct wl_keyboard *wl_keyboard,
-               uint32_t format, int32_t fd, uint32_t size)
-{
-       struct client_state *client_state = data;
-       assert(format == WL_KEYBOARD_KEYMAP_FORMAT_XKB_V1);
-
-       char *map_shm = mmap(NULL, size, PROT_READ, MAP_SHARED, fd, 0);
-       assert(map_shm != MAP_FAILED);
-
-       struct xkb_keymap *xkb_keymap = xkb_keymap_new_from_string(
-                       client_state->xkb_context, map_shm,
-                       XKB_KEYMAP_FORMAT_TEXT_V1, XKB_KEYMAP_COMPILE_NO_FLAGS);
-       munmap(map_shm, size);
-       close(fd);
-
-       struct xkb_state *xkb_state = xkb_state_new(xkb_keymap);
-       xkb_keymap_unref(client_state->xkb_keymap);
-       xkb_state_unref(client_state->xkb_state);
-       client_state->xkb_keymap = xkb_keymap;
-       client_state->xkb_state = xkb_state;
-}
-
-static void
-wl_keyboard_enter(void *data, struct wl_keyboard *wl_keyboard,
-               uint32_t serial, struct wl_surface *surface,
-               struct wl_array *keys)
-{
-       struct client_state *client_state = data;
-       fprintf(stderr, "keyboard enter; keys pressed are:\n");
-       uint32_t *key;
-       wl_array_for_each(key, keys) {
-               char buf[128];
-               xkb_keysym_t sym = xkb_state_key_get_one_sym(
-                               client_state->xkb_state, *key + 8);
-               xkb_keysym_get_name(sym, buf, sizeof(buf));
-               fprintf(stderr, "sym: %-12s (%d), ", buf, sym);
-               xkb_state_key_get_utf8(client_state->xkb_state,
-                               *key + 8, buf, sizeof(buf));
-               fprintf(stderr, "utf8: '%s'\n", buf);
-       }
-}
-
-static void
-wl_keyboard_key(void *data, struct wl_keyboard *wl_keyboard,
-               uint32_t serial, uint32_t time, uint32_t key, uint32_t state)
-{
-       struct client_state *client_state = data;
-       char buf[128];
-       uint32_t keycode = key + 8;
-       xkb_keysym_t sym = xkb_state_key_get_one_sym(
-                       client_state->xkb_state, keycode);
-       xkb_keysym_get_name(sym, buf, sizeof(buf));
-       const char *action =
-               state == WL_KEYBOARD_KEY_STATE_PRESSED ? "press" : "release";
-       fprintf(stderr, "key %s: sym: %-12s (%d), ", action, buf, sym);
-       xkb_state_key_get_utf8(client_state->xkb_state, keycode,
-                       buf, sizeof(buf));
-       fprintf(stderr, "utf8: '%s'\n", buf);
-}
-
-static void
-wl_keyboard_leave(void *data, struct wl_keyboard *wl_keyboard,
-               uint32_t serial, struct wl_surface *surface)
-{
-       fprintf(stderr, "keyboard leave\n");
-}
-
-static void
-wl_keyboard_modifiers(void *data, struct wl_keyboard *wl_keyboard,
-               uint32_t serial, uint32_t mods_depressed,
-               uint32_t mods_latched, uint32_t mods_locked,
-               uint32_t group)
-{
-       struct client_state *client_state = data;
-       xkb_state_update_mask(client_state->xkb_state,
-               mods_depressed, mods_latched, mods_locked, 0, 0, group);
-}
-
-static void
-wl_keyboard_repeat_info(void *data, struct wl_keyboard *wl_keyboard,
-               int32_t rate, int32_t delay)
-{
-       /* Left as an exercise for the reader */
-}
-
-static const struct wl_keyboard_listener wl_keyboard_listener = {
-       .keymap = wl_keyboard_keymap,
-       .enter = wl_keyboard_enter,
-       .leave = wl_keyboard_leave,
-       .key = wl_keyboard_key,
-       .modifiers = wl_keyboard_modifiers,
-       .repeat_info = wl_keyboard_repeat_info,
-};
-
-static void
-wl_seat_capabilities(void *data, struct wl_seat *wl_seat, uint32_t capabilities)
-{
-       struct client_state *state = data;
-
-       bool have_keyboard = capabilities & WL_SEAT_CAPABILITY_KEYBOARD;
-
-       if (have_keyboard && state->wl_keyboard == NULL) {
-	       state->wl_keyboard = wl_seat_get_keyboard(state->wl_seat);
-	       wl_keyboard_add_listener(state->wl_keyboard,
-			       &wl_keyboard_listener, state);
-       } else if (!have_keyboard && state->wl_keyboard != NULL) {
-	       wl_keyboard_release(state->wl_keyboard);
-	       state->wl_keyboard = NULL;
-       }
-}
-
-static void
-wl_seat_name(void *data, struct wl_seat *wl_seat, const char *name)
-{
-       fprintf(stderr, "seat name: %s\n", name);
-}
-
-static const struct wl_seat_listener wl_seat_listener = {
-       .capabilities = wl_seat_capabilities,
-       .name = wl_seat_name,
-};
-
-static void
-xdg_wm_base_ping(void *data, struct xdg_wm_base *xdg_wm_base, uint32_t serial)
-{
-    xdg_wm_base_pong(xdg_wm_base, serial);
-}
-
-static const struct xdg_wm_base_listener xdg_wm_base_listener = {
-    .ping = xdg_wm_base_ping,
-};
-
-static const struct wl_callback_listener wl_surface_frame_listener;
-
-static void
-wl_surface_frame_done(void *data, struct wl_callback *cb, uint32_t time)
-{
-	/* Destroy this callback */
-	wl_callback_destroy(cb);
-
-	/* Request another frame */
-	struct client_state *state = data;
-	cb = wl_surface_frame(state->wl_surface);
-	wl_callback_add_listener(cb, &wl_surface_frame_listener, state);
-
-	/* Update scroll amount at 24 pixels per second */
-	if (state->last_frame != 0) {
-		int elapsed = time - state->last_frame;
-		state->offset += elapsed / 1000.0 * 24;
-	}
-
-	/* Submit a frame for this event */
-	struct wl_buffer *buffer = draw_frame(state);
-	wl_surface_attach(state->wl_surface, buffer, 0, 0);
-	wl_surface_damage_buffer(state->wl_surface, 0, 0, INT32_MAX, INT32_MAX);
-	wl_surface_commit(state->wl_surface);
-
-	state->last_frame = time;
-}
-
-static const struct wl_callback_listener wl_surface_frame_listener = {
-	.done = wl_surface_frame_done,
-};
-
-static void
-registry_global(void *data, struct wl_registry *wl_registry,
-        uint32_t name, const char *interface, uint32_t version)
-{
-    struct client_state *state = data;
-    if (strcmp(interface, wl_shm_interface.name) == 0) {
-        state->wl_shm = wl_registry_bind(
-                wl_registry, name, &wl_shm_interface, 1);
-    } else if (strcmp(interface, wl_compositor_interface.name) == 0) {
-        state->wl_compositor = wl_registry_bind(
-                wl_registry, name, &wl_compositor_interface, 4);
-    } else if (strcmp(interface, wl_seat_interface.name) == 0) {
-        state->wl_seat = wl_registry_bind(
-                wl_registry, name, &wl_seat_interface, 7);
-	wl_seat_add_listener(state->wl_seat,
-			&wl_seat_listener, state);
-    } else if (strcmp(interface, xdg_wm_base_interface.name) == 0) {
-        state->xdg_wm_base = wl_registry_bind(
-                wl_registry, name, &xdg_wm_base_interface, 1);
-        xdg_wm_base_add_listener(state->xdg_wm_base,
-                &xdg_wm_base_listener, state);
-    }
-}
-
-static void
-registry_global_remove(void *data,
-        struct wl_registry *wl_registry, uint32_t name)
-{
-    /* This space deliberately left blank */
-}
-
-static const struct wl_registry_listener wl_registry_listener = {
-    .global = registry_global,
-    .global_remove = registry_global_remove,
-};
-
-int
-main(int argc, char *argv[])
-{
-    struct client_state state = { 0 };
-    state.width = 640;
-    state.height = 480;
-    state.wl_display = wl_display_connect(NULL);
-    state.wl_registry = wl_display_get_registry(state.wl_display);
-    state.xkb_context = xkb_context_new(XKB_CONTEXT_NO_FLAGS);
-    wl_registry_add_listener(state.wl_registry, &wl_registry_listener, &state);
-    wl_display_roundtrip(state.wl_display);
-
-    state.wl_surface = wl_compositor_create_surface(state.wl_compositor);
-    state.xdg_surface = xdg_wm_base_get_xdg_surface(
-            state.xdg_wm_base, state.wl_surface);
-    xdg_surface_add_listener(state.xdg_surface, &xdg_surface_listener, &state);
-    state.xdg_toplevel = xdg_surface_get_toplevel(state.xdg_surface);
-    xdg_toplevel_add_listener(state.xdg_toplevel,
-		    &xdg_toplevel_listener, &state);
-    xdg_toplevel_set_title(state.xdg_toplevel, "Example client");
-
-    wl_surface_commit(state.wl_surface);
-
-
-    /* Setup EGL */
-    EGLDisplay egl_dpy = eglGetPlatformDisplayEXT(EGL_PLATFORM_WAYLAND_KHR,
-		    state.wl_display, NULL);
-    assert(egl_dpy != NULL);
-    bool res = eglInitialize(egl_dpy, NULL, NULL);
-    assert(res);
-
-   const char *egl_extension_st = eglQueryString (egl_dpy, EGL_EXTENSIONS);
-   assert (strstr (egl_extension_st, "EGL_KHR_create_context") != NULL);
-
-   static const EGLint config_attribs[] = {
-      EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
-      EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
-      EGL_NONE
-   };
-   EGLConfig cfg;
-   EGLint count;
- 
-   res = eglChooseConfig (egl_dpy, config_attribs, &cfg, 1, &count);
-   assert (res);
- 
-   res = eglBindAPI (EGL_OPENGL_ES_API);
-   assert (res);
- 
-   static const EGLint attribs[] = {
-      EGL_CONTEXT_MAJOR_VERSION, 2,
-      EGL_NONE
-   };
-   EGLContext core_ctx = eglCreateContext (egl_dpy,
-                                           cfg,
-                                           EGL_NO_CONTEXT,
-                                           attribs);
-   assert (core_ctx != EGL_NO_CONTEXT);
-
-   struct wl_egl_window *egl_window = wl_egl_window_create(state.wl_surface, state.width, state.height);
-   EGLSurface surface = eglCreatePlatformWindowSurfaceEXT(egl_dpy, cfg, egl_window, NULL);
-   assert (surface != EGL_NO_SURFACE);
- 
-   res = eglMakeCurrent (egl_dpy, surface, surface, core_ctx);
-   assert (res);
-
-
-
-   /* */
-
-    struct wl_callback *cb = wl_surface_frame(state.wl_surface);
-    wl_callback_add_listener(cb, &wl_surface_frame_listener, &state);
-
-    while (!state.closed) {
-	    wl_display_dispatch(state.wl_display);
-    }
-
-    return 0;
-}