| /* |
| * Copyright © 2011 Benjamin Franzke |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * and/or sell copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice (including the next |
| * paragraph) shall be included in all copies or substantial portions of the |
| * Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
| * DEALINGS IN THE SOFTWARE. |
| */ |
| |
| #include "config.h" |
| |
| #include <stdint.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <stdbool.h> |
| #include <math.h> |
| #include <assert.h> |
| #include <signal.h> |
| |
| #include <linux/input.h> |
| |
| #include <wayland-client.h> |
| #include <wayland-egl.h> |
| #include <wayland-cursor.h> |
| |
| #include <GLES2/gl2.h> |
| #include <EGL/egl.h> |
| #include <EGL/eglext.h> |
| |
| #include "xdg-shell-client-protocol.h" |
| #include <sys/types.h> |
| #include <unistd.h> |
| |
| #include "shared/helpers.h" |
| #include "shared/platform.h" |
| #include "shared/weston-egl-ext.h" |
| |
| struct window; |
| struct seat; |
| |
| struct display { |
| struct wl_display *display; |
| struct wl_registry *registry; |
| struct wl_compositor *compositor; |
| struct xdg_wm_base *wm_base; |
| struct wl_seat *seat; |
| struct wl_pointer *pointer; |
| struct wl_touch *touch; |
| struct wl_keyboard *keyboard; |
| struct wl_shm *shm; |
| struct wl_cursor_theme *cursor_theme; |
| struct wl_cursor *default_cursor; |
| struct wl_surface *cursor_surface; |
| struct { |
| EGLDisplay dpy; |
| EGLContext ctx; |
| EGLConfig conf; |
| } egl; |
| struct window *window; |
| |
| PFNEGLSWAPBUFFERSWITHDAMAGEEXTPROC swap_buffers_with_damage; |
| }; |
| |
| struct geometry { |
| int width, height; |
| }; |
| |
| struct window { |
| struct display *display; |
| struct geometry geometry, window_size; |
| struct { |
| GLuint rotation_uniform; |
| GLuint pos; |
| GLuint col; |
| } gl; |
| |
| uint32_t benchmark_time, frames; |
| struct wl_egl_window *native; |
| struct wl_surface *surface; |
| struct xdg_surface *xdg_surface; |
| struct xdg_toplevel *xdg_toplevel; |
| EGLSurface egl_surface; |
| struct wl_callback *callback; |
| int fullscreen, maximized, opaque, buffer_size, frame_sync, delay; |
| bool wait_for_configure; |
| }; |
| |
| static const char *vert_shader_text = |
| "uniform mat4 rotation;\n" |
| "attribute vec4 pos;\n" |
| "attribute vec4 color;\n" |
| "varying vec4 v_color;\n" |
| "void main() {\n" |
| " gl_Position = rotation * pos;\n" |
| " v_color = color;\n" |
| "}\n"; |
| |
| static const char *frag_shader_text = |
| "precision mediump float;\n" |
| "varying vec4 v_color;\n" |
| "void main() {\n" |
| " gl_FragColor = v_color;\n" |
| "}\n"; |
| |
| static int running = 1; |
| |
| static void |
| init_egl(struct display *display, struct window *window) |
| { |
| static const struct { |
| char *extension, *entrypoint; |
| } swap_damage_ext_to_entrypoint[] = { |
| { |
| .extension = "EGL_EXT_swap_buffers_with_damage", |
| .entrypoint = "eglSwapBuffersWithDamageEXT", |
| }, |
| { |
| .extension = "EGL_KHR_swap_buffers_with_damage", |
| .entrypoint = "eglSwapBuffersWithDamageKHR", |
| }, |
| }; |
| |
| static const EGLint context_attribs[] = { |
| EGL_CONTEXT_CLIENT_VERSION, 2, |
| EGL_NONE |
| }; |
| const char *extensions; |
| |
| EGLint config_attribs[] = { |
| EGL_SURFACE_TYPE, EGL_WINDOW_BIT, |
| EGL_RED_SIZE, 1, |
| EGL_GREEN_SIZE, 1, |
| EGL_BLUE_SIZE, 1, |
| EGL_ALPHA_SIZE, 1, |
| EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT, |
| EGL_NONE |
| }; |
| |
| EGLint major, minor, n, count, i, size; |
| EGLConfig *configs; |
| EGLBoolean ret; |
| |
| if (window->opaque || window->buffer_size == 16) |
| config_attribs[9] = 0; |
| |
| display->egl.dpy = |
| weston_platform_get_egl_display(EGL_PLATFORM_WAYLAND_KHR, |
| display->display, NULL); |
| assert(display->egl.dpy); |
| |
| ret = eglInitialize(display->egl.dpy, &major, &minor); |
| assert(ret == EGL_TRUE); |
| ret = eglBindAPI(EGL_OPENGL_ES_API); |
| assert(ret == EGL_TRUE); |
| |
| if (!eglGetConfigs(display->egl.dpy, NULL, 0, &count) || count < 1) |
| assert(0); |
| |
| configs = calloc(count, sizeof *configs); |
| assert(configs); |
| |
| ret = eglChooseConfig(display->egl.dpy, config_attribs, |
| configs, count, &n); |
| assert(ret && n >= 1); |
| |
| for (i = 0; i < n; i++) { |
| eglGetConfigAttrib(display->egl.dpy, |
| configs[i], EGL_BUFFER_SIZE, &size); |
| if (window->buffer_size == size) { |
| display->egl.conf = configs[i]; |
| break; |
| } |
| } |
| free(configs); |
| if (display->egl.conf == NULL) { |
| fprintf(stderr, "did not find config with buffer size %d\n", |
| window->buffer_size); |
| exit(EXIT_FAILURE); |
| } |
| |
| display->egl.ctx = eglCreateContext(display->egl.dpy, |
| display->egl.conf, |
| EGL_NO_CONTEXT, context_attribs); |
| assert(display->egl.ctx); |
| |
| display->swap_buffers_with_damage = NULL; |
| extensions = eglQueryString(display->egl.dpy, EGL_EXTENSIONS); |
| if (extensions && |
| weston_check_egl_extension(extensions, "EGL_EXT_buffer_age")) { |
| for (i = 0; i < (int) ARRAY_LENGTH(swap_damage_ext_to_entrypoint); i++) { |
| if (weston_check_egl_extension(extensions, |
| swap_damage_ext_to_entrypoint[i].extension)) { |
| /* The EXTPROC is identical to the KHR one */ |
| display->swap_buffers_with_damage = |
| (PFNEGLSWAPBUFFERSWITHDAMAGEEXTPROC) |
| eglGetProcAddress(swap_damage_ext_to_entrypoint[i].entrypoint); |
| break; |
| } |
| } |
| } |
| |
| if (display->swap_buffers_with_damage) |
| printf("has EGL_EXT_buffer_age and %s\n", swap_damage_ext_to_entrypoint[i].extension); |
| |
| } |
| |
| static void |
| fini_egl(struct display *display) |
| { |
| eglTerminate(display->egl.dpy); |
| eglReleaseThread(); |
| } |
| |
| static GLuint |
| create_shader(struct window *window, const char *source, GLenum shader_type) |
| { |
| GLuint shader; |
| GLint status; |
| |
| shader = glCreateShader(shader_type); |
| assert(shader != 0); |
| |
| glShaderSource(shader, 1, (const char **) &source, NULL); |
| glCompileShader(shader); |
| |
| glGetShaderiv(shader, GL_COMPILE_STATUS, &status); |
| if (!status) { |
| char log[1000]; |
| GLsizei len; |
| glGetShaderInfoLog(shader, 1000, &len, log); |
| fprintf(stderr, "Error: compiling %s: %.*s\n", |
| shader_type == GL_VERTEX_SHADER ? "vertex" : "fragment", |
| len, log); |
| exit(1); |
| } |
| |
| return shader; |
| } |
| |
| static void |
| init_gl(struct window *window) |
| { |
| GLuint frag, vert; |
| GLuint program; |
| GLint status; |
| |
| frag = create_shader(window, frag_shader_text, GL_FRAGMENT_SHADER); |
| vert = create_shader(window, vert_shader_text, GL_VERTEX_SHADER); |
| |
| program = glCreateProgram(); |
| glAttachShader(program, frag); |
| glAttachShader(program, vert); |
| glLinkProgram(program); |
| |
| glGetProgramiv(program, GL_LINK_STATUS, &status); |
| if (!status) { |
| char log[1000]; |
| GLsizei len; |
| glGetProgramInfoLog(program, 1000, &len, log); |
| fprintf(stderr, "Error: linking:\n%.*s\n", len, log); |
| exit(1); |
| } |
| |
| glUseProgram(program); |
| |
| window->gl.pos = 0; |
| window->gl.col = 1; |
| |
| glBindAttribLocation(program, window->gl.pos, "pos"); |
| glBindAttribLocation(program, window->gl.col, "color"); |
| glLinkProgram(program); |
| |
| window->gl.rotation_uniform = |
| glGetUniformLocation(program, "rotation"); |
| } |
| |
| static void |
| handle_surface_configure(void *data, struct xdg_surface *surface, |
| uint32_t serial) |
| { |
| struct window *window = data; |
| |
| xdg_surface_ack_configure(surface, serial); |
| |
| window->wait_for_configure = false; |
| } |
| |
| static const struct xdg_surface_listener xdg_surface_listener = { |
| handle_surface_configure |
| }; |
| |
| static void |
| handle_toplevel_configure(void *data, struct xdg_toplevel *toplevel, |
| int32_t width, int32_t height, |
| struct wl_array *states) |
| { |
| struct window *window = data; |
| uint32_t *p; |
| |
| window->fullscreen = 0; |
| window->maximized = 0; |
| wl_array_for_each(p, states) { |
| uint32_t state = *p; |
| switch (state) { |
| case XDG_TOPLEVEL_STATE_FULLSCREEN: |
| window->fullscreen = 1; |
| break; |
| case XDG_TOPLEVEL_STATE_MAXIMIZED: |
| window->maximized = 1; |
| break; |
| } |
| } |
| |
| if (width > 0 && height > 0) { |
| if (!window->fullscreen && !window->maximized) { |
| window->window_size.width = width; |
| window->window_size.height = height; |
| } |
| window->geometry.width = width; |
| window->geometry.height = height; |
| } else if (!window->fullscreen && !window->maximized) { |
| window->geometry = window->window_size; |
| } |
| |
| if (window->native) |
| wl_egl_window_resize(window->native, |
| window->geometry.width, |
| window->geometry.height, 0, 0); |
| } |
| |
| static void |
| handle_toplevel_close(void *data, struct xdg_toplevel *xdg_toplevel) |
| { |
| running = 0; |
| } |
| |
| static const struct xdg_toplevel_listener xdg_toplevel_listener = { |
| handle_toplevel_configure, |
| handle_toplevel_close, |
| }; |
| |
| static void |
| create_surface(struct window *window) |
| { |
| struct display *display = window->display; |
| EGLBoolean ret; |
| |
| window->surface = wl_compositor_create_surface(display->compositor); |
| |
| window->native = |
| wl_egl_window_create(window->surface, |
| window->geometry.width, |
| window->geometry.height); |
| window->egl_surface = |
| weston_platform_create_egl_surface(display->egl.dpy, |
| display->egl.conf, |
| window->native, NULL); |
| |
| window->xdg_surface = xdg_wm_base_get_xdg_surface(display->wm_base, |
| window->surface); |
| xdg_surface_add_listener(window->xdg_surface, |
| &xdg_surface_listener, window); |
| |
| window->xdg_toplevel = |
| xdg_surface_get_toplevel(window->xdg_surface); |
| xdg_toplevel_add_listener(window->xdg_toplevel, |
| &xdg_toplevel_listener, window); |
| |
| xdg_toplevel_set_title(window->xdg_toplevel, "simple-egl"); |
| |
| window->wait_for_configure = true; |
| wl_surface_commit(window->surface); |
| |
| ret = eglMakeCurrent(window->display->egl.dpy, window->egl_surface, |
| window->egl_surface, window->display->egl.ctx); |
| assert(ret == EGL_TRUE); |
| |
| if (!window->frame_sync) |
| eglSwapInterval(display->egl.dpy, 0); |
| |
| if (!display->wm_base) |
| return; |
| |
| if (window->fullscreen) |
| xdg_toplevel_set_fullscreen(window->xdg_toplevel, NULL); |
| } |
| |
| static void |
| destroy_surface(struct window *window) |
| { |
| /* Required, otherwise segfault in egl_dri2.c: dri2_make_current() |
| * on eglReleaseThread(). */ |
| eglMakeCurrent(window->display->egl.dpy, EGL_NO_SURFACE, EGL_NO_SURFACE, |
| EGL_NO_CONTEXT); |
| |
| weston_platform_destroy_egl_surface(window->display->egl.dpy, |
| window->egl_surface); |
| wl_egl_window_destroy(window->native); |
| |
| if (window->xdg_toplevel) |
| xdg_toplevel_destroy(window->xdg_toplevel); |
| if (window->xdg_surface) |
| xdg_surface_destroy(window->xdg_surface); |
| wl_surface_destroy(window->surface); |
| |
| if (window->callback) |
| wl_callback_destroy(window->callback); |
| } |
| |
| static void |
| redraw(void *data, struct wl_callback *callback, uint32_t time) |
| { |
| struct window *window = data; |
| struct display *display = window->display; |
| static const GLfloat verts[3][2] = { |
| { -0.5, -0.5 }, |
| { 0.5, -0.5 }, |
| { 0, 0.5 } |
| }; |
| static const GLfloat colors[3][3] = { |
| { 1, 0, 0 }, |
| { 0, 1, 0 }, |
| { 0, 0, 1 } |
| }; |
| GLfloat angle; |
| GLfloat rotation[4][4] = { |
| { 1, 0, 0, 0 }, |
| { 0, 1, 0, 0 }, |
| { 0, 0, 1, 0 }, |
| { 0, 0, 0, 1 } |
| }; |
| static const uint32_t speed_div = 5, benchmark_interval = 5; |
| struct wl_region *region; |
| EGLint rect[4]; |
| EGLint buffer_age = 0; |
| struct timeval tv; |
| |
| assert(window->callback == callback); |
| window->callback = NULL; |
| |
| if (callback) |
| wl_callback_destroy(callback); |
| |
| gettimeofday(&tv, NULL); |
| time = tv.tv_sec * 1000 + tv.tv_usec / 1000; |
| if (window->frames == 0) |
| window->benchmark_time = time; |
| if (time - window->benchmark_time > (benchmark_interval * 1000)) { |
| printf("%d frames in %d seconds: %f fps\n", |
| window->frames, |
| benchmark_interval, |
| (float) window->frames / benchmark_interval); |
| window->benchmark_time = time; |
| window->frames = 0; |
| } |
| |
| angle = (time / speed_div) % 360 * M_PI / 180.0; |
| rotation[0][0] = cos(angle); |
| rotation[0][2] = sin(angle); |
| rotation[2][0] = -sin(angle); |
| rotation[2][2] = cos(angle); |
| |
| if (display->swap_buffers_with_damage) |
| eglQuerySurface(display->egl.dpy, window->egl_surface, |
| EGL_BUFFER_AGE_EXT, &buffer_age); |
| |
| glViewport(0, 0, window->geometry.width, window->geometry.height); |
| |
| glUniformMatrix4fv(window->gl.rotation_uniform, 1, GL_FALSE, |
| (GLfloat *) rotation); |
| |
| glClearColor(0.0, 0.0, 0.0, 0.5); |
| glClear(GL_COLOR_BUFFER_BIT); |
| |
| glVertexAttribPointer(window->gl.pos, 2, GL_FLOAT, GL_FALSE, 0, verts); |
| glVertexAttribPointer(window->gl.col, 3, GL_FLOAT, GL_FALSE, 0, colors); |
| glEnableVertexAttribArray(window->gl.pos); |
| glEnableVertexAttribArray(window->gl.col); |
| |
| glDrawArrays(GL_TRIANGLES, 0, 3); |
| |
| glDisableVertexAttribArray(window->gl.pos); |
| glDisableVertexAttribArray(window->gl.col); |
| |
| usleep(window->delay); |
| |
| if (window->opaque || window->fullscreen) { |
| region = wl_compositor_create_region(window->display->compositor); |
| wl_region_add(region, 0, 0, |
| window->geometry.width, |
| window->geometry.height); |
| wl_surface_set_opaque_region(window->surface, region); |
| wl_region_destroy(region); |
| } else { |
| wl_surface_set_opaque_region(window->surface, NULL); |
| } |
| |
| if (display->swap_buffers_with_damage && buffer_age > 0) { |
| rect[0] = window->geometry.width / 4 - 1; |
| rect[1] = window->geometry.height / 4 - 1; |
| rect[2] = window->geometry.width / 2 + 2; |
| rect[3] = window->geometry.height / 2 + 2; |
| display->swap_buffers_with_damage(display->egl.dpy, |
| window->egl_surface, |
| rect, 1); |
| } else { |
| eglSwapBuffers(display->egl.dpy, window->egl_surface); |
| } |
| window->frames++; |
| } |
| |
| static void |
| pointer_handle_enter(void *data, struct wl_pointer *pointer, |
| uint32_t serial, struct wl_surface *surface, |
| wl_fixed_t sx, wl_fixed_t sy) |
| { |
| struct display *display = data; |
| struct wl_buffer *buffer; |
| struct wl_cursor *cursor = display->default_cursor; |
| struct wl_cursor_image *image; |
| |
| if (display->window->fullscreen) |
| wl_pointer_set_cursor(pointer, serial, NULL, 0, 0); |
| else if (cursor) { |
| image = display->default_cursor->images[0]; |
| buffer = wl_cursor_image_get_buffer(image); |
| if (!buffer) |
| return; |
| wl_pointer_set_cursor(pointer, serial, |
| display->cursor_surface, |
| image->hotspot_x, |
| image->hotspot_y); |
| wl_surface_attach(display->cursor_surface, buffer, 0, 0); |
| wl_surface_damage(display->cursor_surface, 0, 0, |
| image->width, image->height); |
| wl_surface_commit(display->cursor_surface); |
| } |
| } |
| |
| static void |
| pointer_handle_leave(void *data, struct wl_pointer *pointer, |
| uint32_t serial, struct wl_surface *surface) |
| { |
| } |
| |
| static void |
| pointer_handle_motion(void *data, struct wl_pointer *pointer, |
| uint32_t time, wl_fixed_t sx, wl_fixed_t sy) |
| { |
| } |
| |
| static void |
| pointer_handle_button(void *data, struct wl_pointer *wl_pointer, |
| uint32_t serial, uint32_t time, uint32_t button, |
| uint32_t state) |
| { |
| struct display *display = data; |
| |
| if (!display->window->xdg_toplevel) |
| return; |
| |
| if (button == BTN_LEFT && state == WL_POINTER_BUTTON_STATE_PRESSED) |
| xdg_toplevel_move(display->window->xdg_toplevel, |
| display->seat, serial); |
| } |
| |
| static void |
| pointer_handle_axis(void *data, struct wl_pointer *wl_pointer, |
| uint32_t time, uint32_t axis, wl_fixed_t value) |
| { |
| } |
| |
| static const struct wl_pointer_listener pointer_listener = { |
| pointer_handle_enter, |
| pointer_handle_leave, |
| pointer_handle_motion, |
| pointer_handle_button, |
| pointer_handle_axis, |
| }; |
| |
| static void |
| touch_handle_down(void *data, struct wl_touch *wl_touch, |
| uint32_t serial, uint32_t time, struct wl_surface *surface, |
| int32_t id, wl_fixed_t x_w, wl_fixed_t y_w) |
| { |
| struct display *d = (struct display *)data; |
| |
| if (!d->wm_base) |
| return; |
| |
| xdg_toplevel_move(d->window->xdg_toplevel, d->seat, serial); |
| } |
| |
| static void |
| touch_handle_up(void *data, struct wl_touch *wl_touch, |
| uint32_t serial, uint32_t time, int32_t id) |
| { |
| } |
| |
| static void |
| touch_handle_motion(void *data, struct wl_touch *wl_touch, |
| uint32_t time, int32_t id, wl_fixed_t x_w, wl_fixed_t y_w) |
| { |
| } |
| |
| static void |
| touch_handle_frame(void *data, struct wl_touch *wl_touch) |
| { |
| } |
| |
| static void |
| touch_handle_cancel(void *data, struct wl_touch *wl_touch) |
| { |
| } |
| |
| static const struct wl_touch_listener touch_listener = { |
| touch_handle_down, |
| touch_handle_up, |
| touch_handle_motion, |
| touch_handle_frame, |
| touch_handle_cancel, |
| }; |
| |
| static void |
| keyboard_handle_keymap(void *data, struct wl_keyboard *keyboard, |
| uint32_t format, int fd, uint32_t size) |
| { |
| /* Just so we don’t leak the keymap fd */ |
| close(fd); |
| } |
| |
| static void |
| keyboard_handle_enter(void *data, struct wl_keyboard *keyboard, |
| uint32_t serial, struct wl_surface *surface, |
| struct wl_array *keys) |
| { |
| } |
| |
| static void |
| keyboard_handle_leave(void *data, struct wl_keyboard *keyboard, |
| uint32_t serial, struct wl_surface *surface) |
| { |
| } |
| |
| static void |
| keyboard_handle_key(void *data, struct wl_keyboard *keyboard, |
| uint32_t serial, uint32_t time, uint32_t key, |
| uint32_t state) |
| { |
| struct display *d = data; |
| |
| if (!d->wm_base) |
| return; |
| |
| if (key == KEY_F11 && state) { |
| if (d->window->fullscreen) |
| xdg_toplevel_unset_fullscreen(d->window->xdg_toplevel); |
| else |
| xdg_toplevel_set_fullscreen(d->window->xdg_toplevel, NULL); |
| } else if (key == KEY_ESC && state) |
| running = 0; |
| } |
| |
| static void |
| keyboard_handle_modifiers(void *data, struct wl_keyboard *keyboard, |
| uint32_t serial, uint32_t mods_depressed, |
| uint32_t mods_latched, uint32_t mods_locked, |
| uint32_t group) |
| { |
| } |
| |
| static const struct wl_keyboard_listener keyboard_listener = { |
| keyboard_handle_keymap, |
| keyboard_handle_enter, |
| keyboard_handle_leave, |
| keyboard_handle_key, |
| keyboard_handle_modifiers, |
| }; |
| |
| static void |
| seat_handle_capabilities(void *data, struct wl_seat *seat, |
| enum wl_seat_capability caps) |
| { |
| struct display *d = data; |
| |
| if ((caps & WL_SEAT_CAPABILITY_POINTER) && !d->pointer) { |
| d->pointer = wl_seat_get_pointer(seat); |
| wl_pointer_add_listener(d->pointer, &pointer_listener, d); |
| } else if (!(caps & WL_SEAT_CAPABILITY_POINTER) && d->pointer) { |
| wl_pointer_destroy(d->pointer); |
| d->pointer = NULL; |
| } |
| |
| if ((caps & WL_SEAT_CAPABILITY_KEYBOARD) && !d->keyboard) { |
| d->keyboard = wl_seat_get_keyboard(seat); |
| wl_keyboard_add_listener(d->keyboard, &keyboard_listener, d); |
| } else if (!(caps & WL_SEAT_CAPABILITY_KEYBOARD) && d->keyboard) { |
| wl_keyboard_destroy(d->keyboard); |
| d->keyboard = NULL; |
| } |
| |
| if ((caps & WL_SEAT_CAPABILITY_TOUCH) && !d->touch) { |
| d->touch = wl_seat_get_touch(seat); |
| wl_touch_set_user_data(d->touch, d); |
| wl_touch_add_listener(d->touch, &touch_listener, d); |
| } else if (!(caps & WL_SEAT_CAPABILITY_TOUCH) && d->touch) { |
| wl_touch_destroy(d->touch); |
| d->touch = NULL; |
| } |
| } |
| |
| static const struct wl_seat_listener seat_listener = { |
| seat_handle_capabilities, |
| }; |
| |
| static void |
| xdg_wm_base_ping(void *data, struct xdg_wm_base *shell, uint32_t serial) |
| { |
| xdg_wm_base_pong(shell, serial); |
| } |
| |
| static const struct xdg_wm_base_listener wm_base_listener = { |
| xdg_wm_base_ping, |
| }; |
| |
| static void |
| registry_handle_global(void *data, struct wl_registry *registry, |
| uint32_t name, const char *interface, uint32_t version) |
| { |
| struct display *d = data; |
| |
| if (strcmp(interface, "wl_compositor") == 0) { |
| d->compositor = |
| wl_registry_bind(registry, name, |
| &wl_compositor_interface, |
| MIN(version, 4)); |
| } else if (strcmp(interface, "xdg_wm_base") == 0) { |
| d->wm_base = wl_registry_bind(registry, name, |
| &xdg_wm_base_interface, 1); |
| xdg_wm_base_add_listener(d->wm_base, &wm_base_listener, d); |
| } else if (strcmp(interface, "wl_seat") == 0) { |
| d->seat = wl_registry_bind(registry, name, |
| &wl_seat_interface, 1); |
| wl_seat_add_listener(d->seat, &seat_listener, d); |
| } else if (strcmp(interface, "wl_shm") == 0) { |
| d->shm = wl_registry_bind(registry, name, |
| &wl_shm_interface, 1); |
| d->cursor_theme = wl_cursor_theme_load(NULL, 32, d->shm); |
| if (!d->cursor_theme) { |
| fprintf(stderr, "unable to load default theme\n"); |
| return; |
| } |
| d->default_cursor = |
| wl_cursor_theme_get_cursor(d->cursor_theme, "left_ptr"); |
| if (!d->default_cursor) { |
| fprintf(stderr, "unable to load default left pointer\n"); |
| // TODO: abort ? |
| } |
| } |
| } |
| |
| static void |
| registry_handle_global_remove(void *data, struct wl_registry *registry, |
| uint32_t name) |
| { |
| } |
| |
| static const struct wl_registry_listener registry_listener = { |
| registry_handle_global, |
| registry_handle_global_remove |
| }; |
| |
| static void |
| signal_int(int signum) |
| { |
| running = 0; |
| } |
| |
| static void |
| usage(int error_code) |
| { |
| fprintf(stderr, "Usage: simple-egl [OPTIONS]\n\n" |
| " -d <us>\tBuffer swap delay in microseconds\n" |
| " -f\tRun in fullscreen mode\n" |
| " -o\tCreate an opaque surface\n" |
| " -s\tUse a 16 bpp EGL config\n" |
| " -b\tDon't sync to compositor redraw (eglSwapInterval 0)\n" |
| " -h\tThis help text\n\n"); |
| |
| exit(error_code); |
| } |
| |
| int |
| main(int argc, char **argv) |
| { |
| struct sigaction sigint; |
| struct display display = { 0 }; |
| struct window window = { 0 }; |
| int i, ret = 0; |
| |
| window.display = &display; |
| display.window = &window; |
| window.geometry.width = 250; |
| window.geometry.height = 250; |
| window.window_size = window.geometry; |
| window.buffer_size = 32; |
| window.frame_sync = 1; |
| window.delay = 0; |
| |
| for (i = 1; i < argc; i++) { |
| if (strcmp("-d", argv[i]) == 0 && i+1 < argc) |
| window.delay = atoi(argv[++i]); |
| else if (strcmp("-f", argv[i]) == 0) |
| window.fullscreen = 1; |
| else if (strcmp("-o", argv[i]) == 0) |
| window.opaque = 1; |
| else if (strcmp("-s", argv[i]) == 0) |
| window.buffer_size = 16; |
| else if (strcmp("-b", argv[i]) == 0) |
| window.frame_sync = 0; |
| else if (strcmp("-h", argv[i]) == 0) |
| usage(EXIT_SUCCESS); |
| else |
| usage(EXIT_FAILURE); |
| } |
| |
| display.display = wl_display_connect(NULL); |
| assert(display.display); |
| |
| display.registry = wl_display_get_registry(display.display); |
| wl_registry_add_listener(display.registry, |
| ®istry_listener, &display); |
| |
| wl_display_roundtrip(display.display); |
| |
| init_egl(&display, &window); |
| create_surface(&window); |
| init_gl(&window); |
| |
| display.cursor_surface = |
| wl_compositor_create_surface(display.compositor); |
| |
| sigint.sa_handler = signal_int; |
| sigemptyset(&sigint.sa_mask); |
| sigint.sa_flags = SA_RESETHAND; |
| sigaction(SIGINT, &sigint, NULL); |
| |
| /* The mainloop here is a little subtle. Redrawing will cause |
| * EGL to read events so we can just call |
| * wl_display_dispatch_pending() to handle any events that got |
| * queued up as a side effect. */ |
| while (running && ret != -1) { |
| if (window.wait_for_configure) { |
| ret = wl_display_dispatch(display.display); |
| } else { |
| ret = wl_display_dispatch_pending(display.display); |
| redraw(&window, NULL, 0); |
| } |
| } |
| |
| fprintf(stderr, "simple-egl exiting\n"); |
| |
| destroy_surface(&window); |
| fini_egl(&display); |
| |
| wl_surface_destroy(display.cursor_surface); |
| if (display.cursor_theme) |
| wl_cursor_theme_destroy(display.cursor_theme); |
| |
| if (display.wm_base) |
| xdg_wm_base_destroy(display.wm_base); |
| |
| if (display.compositor) |
| wl_compositor_destroy(display.compositor); |
| |
| wl_registry_destroy(display.registry); |
| wl_display_flush(display.display); |
| wl_display_disconnect(display.display); |
| |
| return 0; |
| } |