Attachment 104458 Details for Bug 68296 – modified weston-simple-egl (courtesy of antognolli)

modified weston-simple-egl (courtesy of antognolli)

simple-egl.c (text/plain), 21.54 KB, created by U. Artie Eoff on 2014-08-11 21:00:10 UTC

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Creator: U. Artie Eoff

Created: 2014-08-11 21:00:10 UTC

Size: 21.54 KB

patch

obsolete

>/*
> * Copyright Â© 2011 Benjamin Franzke
> *
> * Permission to use, copy, modify, distribute, and sell this software and its
> * documentation for any purpose is hereby granted without fee, provided that
> * the above copyright notice appear in all copies and that both that copyright
> * notice and this permission notice appear in supporting documentation, and
> * that the name of the copyright holders not be used in advertising or
> * publicity pertaining to distribution of the software without specific,
> * written prior permission.  The copyright holders make no representations
> * about the suitability of this software for any purpose.  It is provided "as
> * is" without express or implied warranty.
> *
> * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
> * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
> * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
> * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
> * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
> * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
> * OF THIS SOFTWARE.
> */
>
>#include "config.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"
>
>#ifndef EGL_EXT_swap_buffers_with_damage
>#define EGL_EXT_swap_buffers_with_damage 1
>typedef EGLBoolean (EGLAPIENTRYP PFNEGLSWAPBUFFERSWITHDAMAGEEXTPROC)(EGLDisplay dpy, EGLSurface surface, EGLint *rects, EGLint n_rects);
>#endif
>
>#ifndef EGL_EXT_buffer_age
>#define EGL_EXT_buffer_age 1
>#define EGL_BUFFER_AGE_EXT			0x313D
>#endif
>
>struct window;
>struct seat;
>
>struct display {
>	struct wl_display *display;
>	struct wl_registry *registry;
>	struct wl_compositor *compositor;
>	struct xdg_shell *shell;
>	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;
>	EGLSurface egl_surface;
>	struct wl_callback *callback;
>	int fullscreen, opaque, buffer_size, frame_sync;
>};
>
>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 int drawing = 0;
>
>static void
>init_egl(struct display *display, struct window *window)
>{
>	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_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 = eglGetDisplay(display->display);
>	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 &&
>	    strstr(extensions, "EGL_EXT_swap_buffers_with_damage") &&
>	    strstr(extensions, "EGL_EXT_buffer_age"))
>		display->swap_buffers_with_damage =
>			(PFNEGLSWAPBUFFERSWITHDAMAGEEXTPROC)
>			eglGetProcAddress("eglSwapBuffersWithDamageEXT");
>
>	if (display->swap_buffers_with_damage)
>		printf("has EGL_EXT_buffer_age and EGL_EXT_swap_buffers_with_damage\n");
>
>}
>
>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,
>			 int32_t width, int32_t height,
>			 struct wl_array *states, uint32_t serial)
>{
>	struct window *window = data;
>	uint32_t *p;
>
>    drawing = 1;
>	window->fullscreen = 0;
>	wl_array_for_each(p, states) {
>		uint32_t state = *p;
>		switch (state) {
>		case XDG_SURFACE_STATE_FULLSCREEN:
>			window->fullscreen = 1;
>			break;
>		}
>	}
>
>	if (width > 0 && height > 0) {
>		if (!window->fullscreen) {
>			window->window_size.width = width;
>			window->window_size.height = height;
>		}
>		window->geometry.width = width;
>		window->geometry.height = height;
>	} else if (!window->fullscreen) {
>		window->geometry = window->window_size;
>	}
>
>	if (window->native)
>		wl_egl_window_resize(window->native,
>				     window->geometry.width,
>				     window->geometry.height, 0, 0);
>
>	xdg_surface_ack_configure(surface, serial);
>}
>
>static void
>handle_surface_delete(void *data, struct xdg_surface *xdg_surface)
>{
>	running = 0;
>}
>
>static const struct xdg_surface_listener xdg_surface_listener = {
>	handle_surface_configure,
>	handle_surface_delete,
>};
>
>static void
>create_surface(struct window *window)
>{
>	struct display *display = window->display;
>	EGLBoolean ret;
>	
>	window->surface = wl_compositor_create_surface(display->compositor);
>	window->xdg_surface = xdg_shell_get_xdg_surface(display->shell,
>							window->surface);
>
>	xdg_surface_add_listener(window->xdg_surface,
>				 &xdg_surface_listener, window);
>
>	window->native =
>		wl_egl_window_create(window->surface,
>				     window->geometry.width,
>				     window->geometry.height);
>	window->egl_surface =
>		eglCreateWindowSurface(display->egl.dpy,
>				       display->egl.conf,
>				       window->native, NULL);
>
>	xdg_surface_set_title(window->xdg_surface, "simple-egl");
>
>	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 (window->fullscreen)
>		xdg_surface_set_fullscreen(window->xdg_surface, 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);
>
>	eglDestroySurface(window->display->egl.dpy, window->egl_surface);
>	wl_egl_window_destroy(window->native);
>
>	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 rotation[4][4] = {
>		{ 1, 0, 0, 0 },
>		{ 0, 1, 0, 0 },
>		{ 0, 0, 1, 0 },
>		{ 0, 0, 0, 1 }
>	};
>	struct wl_region *region;
>	EGLint rect[4];
>	EGLint buffer_age = 0;
>
>	assert(window->callback == callback);
>	window->callback = NULL;
>
>	if (callback)
>		wl_callback_destroy(callback);
>
>    if (drawing) {
>
>        printf(">>> drawing: %dx%d\n", window->geometry.width, window->geometry.height);
>        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);
>
>        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);
>
>        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);
>        }
>    }
>    drawing = 0;
>}
>
>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 (button == BTN_LEFT && state == WL_POINTER_BUTTON_STATE_PRESSED)
>		xdg_surface_move(display->window->xdg_surface,
>				 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;
>
>	xdg_surface_move(d->window->xdg_surface, 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)
>{
>}
>
>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 (key == KEY_F11 && state) {
>		if (d->window->fullscreen) {
>			xdg_surface_unset_fullscreen(d->window->xdg_surface);
>        } else {
>			xdg_surface_set_fullscreen(d->window->xdg_surface, NULL);
>        }
>	} else if (key == KEY_F10 && state) {
>		d->window->geometry.width *= 2;
>		d->window->geometry.height *= 2;
>        d->window->window_size = d->window->geometry;
>        xdg_surface_set_window_geometry(d->window->xdg_surface,
>                                        0, 0,
>                                        d->window->geometry.width,
>                                        d->window->geometry.height);
>        drawing = 1;
>        if (d->window->native)
>            wl_egl_window_resize(d->window->native,
>                                 d->window->geometry.width,
>                                 d->window->geometry.height, 0, 0);
>	} 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_shell_ping(void *data, struct xdg_shell *shell, uint32_t serial)
>{
>	xdg_shell_pong(shell, serial);
>}
>
>static const struct xdg_shell_listener xdg_shell_listener = {
>	xdg_shell_ping,
>};
>
>#define XDG_VERSION 3 /* The version of xdg-shell that we implement */
>#ifdef static_assert
>static_assert(XDG_VERSION == XDG_SHELL_VERSION_CURRENT,
>	      "Interface version doesn't match implementation version");
>#endif
>
>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, 1);
>	} else if (strcmp(interface, "xdg_shell") == 0) {
>		d->shell = wl_registry_bind(registry, name,
>					    &xdg_shell_interface, 1);
>		xdg_shell_add_listener(d->shell, &xdg_shell_listener, d);
>		xdg_shell_use_unstable_version(d->shell, XDG_VERSION);
>	} 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"
>		"  -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;
>
>	for (i = 1; i < argc; i++) {
>		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,
>				 &registry_listener, &display);
>
>	wl_display_dispatch(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. */
>    drawing = 1;
>	while (running && ret != -1) {
>		wl_display_dispatch(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.shell)
>		xdg_shell_destroy(display.shell);
>
>	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;
>}

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Attachments on bug 68296: 84295 | 84345 | 103044 | 104458

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