在 2016-06-23 21:13:28，"Pekka Paalanen" <ppaala...@gmail.com> 写道：
>On Thu, 23 Jun 2016 14:52:23 +0800 (CST)
>袁嘉伟 <yuanjw1...@163.com> wrote:
>
>> Hi Pekka：
>>
>> Sorry to take you some time. It's still this issue.
>> I made a test that using 'pthread' to created another thread, and then
>> created the display in the child thread.
>> But program was blocked when connecting to a server(wl_display_connect). It
>> should be pending according to log.
>> However, I called the renderFrames() in main thread, it ran correctly and
>> displayed the triangle.
>> Could you tell me what causes the issue happend.
>>
>>
>>
>>
>> voidSurfaceManagerClient::initializeThread()
>> {
>> pthread_t lifeThread;
>> pthread_create(&lifeThread, NULL, &SurfaceManagerClient::renderFrames,
>> NULL);
>> }
>>
>>
>> void SurfaceManagerClient::renderFrames()
>> {
>> struct sigaction sigint;
>> struct display display = { 0 };
>> struct window window = { 0 };
>> int i, ret = 0;
>> window.display = &display;
>> display.window = &window;
>> window.window_size.width = 250;
>> window.window_size.height = 250;
>> window.buffer_size = 32;
>> window.frame_sync = 1;
>> for (i = 1; i < m_argc; i++) {
>> if (strcmp("-f", m_argv[i]) == 0)
>> window.fullscreen = 1;
>> else if (strcmp("-o", m_argv[i]) == 0)
>> window.opaque = 1;
>> else if (strcmp("-s", m_argv[i]) == 0)
>> window.buffer_size = 16;
>> else if (strcmp("-b", m_argv[i]) == 0)
>> window.frame_sync = 0;
>> else if (strcmp("-h", m_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);
>>
>>
>> int a = 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);
>>
>>
>> while (running && ret != -1) {
>> 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.shell)
>> xdg_shell_destroy(display.shell);
>>
>> if (display.ivi_application)
>> ivi_application_destroy(display.ivi_application);
>>
>> 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;
>> }
>> Best regards,
>> Anthenony
>>
>
>Hi,
>
>sorry, but I can't make sense from the spaghetti above, nor do I have
>time to debug your application for you, especially when it has huge
>parts outside of my expertise (everything about SurfaceManager). If you
>can create a stand-alone C program that shows the problem, then it
>might be possible to take a look, but no promises.
>
>Also signals will be delivered to random threads unless you
>specifically block them.
>
>I have no idea why wl_display_connect() from a secondary thread would
>block.
>
>
>Thanks,
>pq
Hi：
I have created a stand-alone C program, which could show the problem.
It was blocked in wl_display_dispatch this time.I was very helpless.
I hope you might take a look if you have time.
Thanks.
/*
* Copyright © 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 <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 <pthread.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 wl_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 wl_shell_surface *shell_surface;
EGLSurface egl_surface;
struct wl_callback *callback;
int fullscreen, configured, 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 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 = (EGLConfig*)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_ping(void *data, struct wl_shell_surface *shell_surface,
uint32_t serial)
{
wl_shell_surface_pong(shell_surface, serial);
}
static void
handle_configure(void *data, struct wl_shell_surface *shell_surface,
uint32_t edges, int32_t width, int32_t height)
{
struct window *window = (struct window*)data;
if (window->native)
wl_egl_window_resize(window->native, width, height, 0, 0);
window->geometry.width = width;
window->geometry.height = height;
if (!window->fullscreen)
window->window_size = window->geometry;
}
static void
handle_popup_done(void *data, struct wl_shell_surface *shell_surface)
{
}
static const struct wl_shell_surface_listener shell_surface_listener = {
handle_ping,
handle_configure,
handle_popup_done
};
static void
configure_callback(void *data, struct wl_callback *callback, uint32_t time)
{
struct window *window = (struct window*)data;
wl_callback_destroy(callback);
window->configured = 1;
}
static struct wl_callback_listener configure_callback_listener = {
configure_callback,
};
static void
set_fullscreen(struct window *window, int fullscreen)
{
struct wl_callback *callback;
window->fullscreen = fullscreen;
window->configured = 0;
if (fullscreen) {
wl_shell_surface_set_fullscreen(window->shell_surface,
WL_SHELL_SURFACE_FULLSCREEN_METHOD_DEFAULT,
0, NULL);
callback = wl_display_sync(window->display->display);
wl_callback_add_listener(callback,
&configure_callback_listener,
window);
} else {
wl_shell_surface_set_toplevel(window->shell_surface);
handle_configure(window, window->shell_surface, 0,
window->window_size.width,
window->window_size.height);
window->configured = 1;
}
}
static void
create_surface(struct window *window)
{
struct display *display = window->display;
EGLBoolean ret;
window->surface = wl_compositor_create_surface(display->compositor);
window->shell_surface = wl_shell_get_shell_surface(display->shell,
window->surface);
wl_shell_surface_add_listener(window->shell_surface,
&shell_surface_listener, window);
window->native =
wl_egl_window_create(window->surface,
window->window_size.width,
window->window_size.height);
window->egl_surface =
eglCreateWindowSurface(display->egl.dpy,
display->egl.conf,
window->native, NULL);
wl_shell_surface_set_title(window->shell_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);
set_fullscreen(window, window->fullscreen);
}
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);
wl_shell_surface_destroy(window->shell_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 = (struct 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 int32_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);
if (!window->configured)
return;
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);
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 const struct wl_callback_listener frame_listener = {
redraw
};
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 = (struct 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);
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 = (struct display*)data;
if (button == BTN_LEFT && state == WL_POINTER_BUTTON_STATE_PRESSED)
wl_shell_surface_move(display->window->shell_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;
wl_shell_surface_move(d->window->shell_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 = (struct display*)data;
if (key == KEY_F11 && state)
set_fullscreen(d->window, d->window->fullscreen ^ 1);
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,
uint32_t caps)
{
struct display *d = (struct display*)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
registry_handle_global(void *data, struct wl_registry *registry,
uint32_t name, const char *interface, uint32_t version)
{
struct display *d = (struct display*)data;
if (strcmp(interface, "wl_compositor") == 0) {
d->compositor =
wl_registry_bind(registry, name,
&wl_compositor_interface, 1);
} else if (strcmp(interface, "wl_shell") == 0) {
d->shell = wl_registry_bind(registry, name,
&wl_shell_interface, 1);
} 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);
d->default_cursor =
wl_cursor_theme_get_cursor(d->cursor_theme, "left_ptr");
}
}
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);
}
static void * renderFrames(void * pid)
{
printf("renderFrames \n");
struct sigaction sigint;
struct display display = { 0 };
struct window window = { 0 };
int i, ret = 0;
window.display = &display;
display.window = &window;
window.window_size.width = 250;
window.window_size.height = 250;
window.buffer_size = 32;
window.frame_sync = 1;
printf("wl_display_connect \n");
display.display = wl_display_connect(NULL);
assert(display.display);
printf("wl_display_get_registry \n");
display.registry = wl_display_get_registry(display.display);
wl_registry_add_listener(display.registry,
®istry_listener, &display);
printf("wl_display_dispatch \n");
wl_display_dispatch(display.display);
printf("init_egl \n");
init_egl(&display, &window);
printf("create_surface \n");
create_surface(&window);
printf("init_gl \n");
init_gl(&window);
printf("wl_compositor_create_surface \n");
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) {
wl_display_dispatch_pending(display.display);
while (!window.configured)
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)
wl_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);
}
int
main(int argc, char **argv)
{
pthread_t lifeThread;
pthread_create(&lifeThread, NULL, &renderFrames, NULL);
return 0;
}
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