weston/clients/simple-egl.c
Robert Mader f7541d9e42 clients/simple-egl: Fix angle reset on benchmark interval
Commit 62ab6891db intended to change the angle calculation
so that the a time delta since the first frame would be used
instead of the absolute time. That was done in order to ensure
the angle would always start with the same value, allowing users
to differentiate left and right, which again is needed when
testing flipped transforms.

However, the `benchmark_time` variable is unsuitable for that
purpose as it gets reset on each benchmark interval, abruptly
changing the angle.

Thus introduce a dedicated variable.

Fixes 62ab6891db

Signed-off-by: Robert Mader <robert.mader@collabora.com>
2022-06-14 13:11:59 +02:00

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/*
* 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 <libweston/matrix.h>
#include "shared/helpers.h"
#include "shared/platform.h"
#include "shared/weston-egl-ext.h"
#include "shared/xalloc.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;
struct wl_list output_list; /* struct output::link */
PFNEGLSWAPBUFFERSWITHDAMAGEEXTPROC swap_buffers_with_damage;
};
struct geometry {
int width, height;
};
struct window {
struct display *display;
struct geometry window_size;
struct geometry logical_size;
struct geometry buffer_size;
int32_t buffer_scale;
enum wl_output_transform buffer_transform;
bool needs_buffer_geometry_update;
struct {
GLuint rotation_uniform;
GLuint pos;
GLuint col;
} gl;
uint32_t frames;
uint32_t initial_frame_time;
uint32_t benchmark_time;
struct wl_egl_window *native;
struct wl_surface *surface;
struct xdg_surface *xdg_surface;
struct xdg_toplevel *xdg_toplevel;
EGLSurface egl_surface;
int fullscreen, maximized, opaque, buffer_bpp, frame_sync, delay;
bool wait_for_configure;
struct wl_list window_output_list; /* struct window_output::link */
};
struct output {
struct display *display;
struct wl_output *wl_output;
uint32_t name;
struct wl_list link; /* struct display::output_list */
enum wl_output_transform transform;
int32_t scale;
};
struct window_output {
struct output *output;
struct wl_list link; /* struct window::window_output_list */
};
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;
EGLConfig *configs;
EGLBoolean ret;
if (window->opaque || window->buffer_bpp == 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++) {
EGLint buffer_bpp, red_size;
eglGetConfigAttrib(display->egl.dpy,
configs[i], EGL_BUFFER_SIZE, &buffer_bpp);
eglGetConfigAttrib(display->egl.dpy,
configs[i], EGL_RED_SIZE, &red_size);
if ((window->buffer_bpp == 0 ||
window->buffer_bpp == buffer_bpp) && red_size < 10) {
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_bpp);
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;
EGLBoolean ret;
window->native = wl_egl_window_create(window->surface,
window->buffer_size.width,
window->buffer_size.height);
window->egl_surface =
weston_platform_create_egl_surface(window->display->egl.dpy,
window->display->egl.conf,
window->native, NULL);
ret = eglMakeCurrent(window->display->egl.dpy, window->egl_surface,
window->egl_surface, window->display->egl.ctx);
assert(ret == EGL_TRUE);
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->logical_size.width = width;
window->logical_size.height = height;
} else if (!window->fullscreen && !window->maximized) {
window->logical_size = window->window_size;
}
window->needs_buffer_geometry_update = true;
}
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
add_window_output(struct window *window, struct wl_output *wl_output)
{
struct output *output;
struct output *output_found = NULL;
struct window_output *window_output;
wl_list_for_each(output, &window->display->output_list, link) {
if (output->wl_output == wl_output) {
output_found = output;
break;
}
}
if (!output_found)
return;
window_output = xmalloc(sizeof *window_output);
window_output->output = output_found;
wl_list_insert(window->window_output_list.prev, &window_output->link);
window->needs_buffer_geometry_update = true;
}
static void
destroy_window_output(struct window *window, struct wl_output *wl_output)
{
struct window_output *window_output;
struct window_output *window_output_found = NULL;
wl_list_for_each(window_output, &window->window_output_list, link) {
if (window_output->output->wl_output == wl_output) {
window_output_found = window_output;
break;
}
}
if (window_output_found) {
wl_list_remove(&window_output_found->link);
free(window_output_found);
window->needs_buffer_geometry_update = true;
}
}
static void
surface_enter(void *data,
struct wl_surface *wl_surface, struct wl_output *wl_output)
{
struct window *window = data;
add_window_output(window, wl_output);
}
static void
surface_leave(void *data,
struct wl_surface *wl_surface, struct wl_output *wl_output)
{
struct window *window = data;
destroy_window_output(window, wl_output);
}
static const struct wl_surface_listener surface_listener = {
surface_enter,
surface_leave
};
static void
create_surface(struct window *window)
{
struct display *display = window->display;
window->surface = wl_compositor_create_surface(display->compositor);
wl_surface_add_listener(window->surface, &surface_listener, window);
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");
xdg_toplevel_set_app_id(window->xdg_toplevel,
"org.freedesktop.weston.simple-egl");
if (window->fullscreen)
xdg_toplevel_set_fullscreen(window->xdg_toplevel, NULL);
else if (window->maximized)
xdg_toplevel_set_maximized(window->xdg_toplevel);
window->wait_for_configure = true;
wl_surface_commit(window->surface);
if (!window->frame_sync)
eglSwapInterval(display->egl.dpy, 0);
}
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);
}
static int32_t
compute_buffer_scale(struct window *window)
{
struct window_output *window_output;
int32_t scale = 1;
wl_list_for_each(window_output, &window->window_output_list, link) {
if (window_output->output->scale > scale)
scale = window_output->output->scale;
}
return scale;
}
static enum wl_output_transform
compute_buffer_transform(struct window *window)
{
struct window_output *window_output;
enum wl_output_transform transform = WL_OUTPUT_TRANSFORM_NORMAL;
wl_list_for_each(window_output, &window->window_output_list, link) {
/* If the surface spans over multiple outputs the optimal
* transform value can be ambiguous. Thus just return the value
* from the oldest entered output.
*/
transform = window_output->output->transform;
break;
}
return transform;
}
static void
update_buffer_geometry(struct window *window)
{
enum wl_output_transform new_buffer_transform;
int32_t new_buffer_scale;
struct geometry new_buffer_size;
new_buffer_transform = compute_buffer_transform(window);
if (window->buffer_transform != new_buffer_transform) {
window->buffer_transform = new_buffer_transform;
wl_surface_set_buffer_transform(window->surface,
window->buffer_transform);
}
new_buffer_scale = compute_buffer_scale(window);
if (window->buffer_scale != new_buffer_scale) {
window->buffer_scale = new_buffer_scale;
wl_surface_set_buffer_scale(window->surface,
window->buffer_scale);
}
switch (window->buffer_transform) {
case WL_OUTPUT_TRANSFORM_NORMAL:
case WL_OUTPUT_TRANSFORM_180:
case WL_OUTPUT_TRANSFORM_FLIPPED:
case WL_OUTPUT_TRANSFORM_FLIPPED_180:
new_buffer_size.width = window->logical_size.width;
new_buffer_size.height = window->logical_size.height;
break;
case WL_OUTPUT_TRANSFORM_90:
case WL_OUTPUT_TRANSFORM_270:
case WL_OUTPUT_TRANSFORM_FLIPPED_90:
case WL_OUTPUT_TRANSFORM_FLIPPED_270:
new_buffer_size.width = window->logical_size.height;
new_buffer_size.height = window->logical_size.width;
break;
}
new_buffer_size.width *= window->buffer_scale;
new_buffer_size.height *= window->buffer_scale;
if (window->buffer_size.width != new_buffer_size.width ||
window->buffer_size.height != new_buffer_size.height) {
window->buffer_size = new_buffer_size;
wl_egl_window_resize(window->native,
window->buffer_size.width,
window->buffer_size.height, 0, 0);
}
window->needs_buffer_geometry_update = false;
}
static void
redraw(struct window *window)
{
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;
struct weston_matrix rotation;
static const uint32_t speed_div = 5, benchmark_interval = 5;
struct wl_region *region;
EGLint rect[4];
EGLint buffer_age = 0;
struct timeval tv;
if (window->needs_buffer_geometry_update)
update_buffer_geometry(window);
gettimeofday(&tv, NULL);
uint32_t time = tv.tv_sec * 1000 + tv.tv_usec / 1000;
if (window->frames == 0) {
window->initial_frame_time = time;
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;
}
weston_matrix_init(&rotation);
angle = ((time - window->initial_frame_time) / speed_div) % 360 * M_PI / 180.0;
rotation.d[0] = cos(angle);
rotation.d[2] = sin(angle);
rotation.d[8] = -sin(angle);
rotation.d[10] = cos(angle);
switch (window->buffer_transform) {
case WL_OUTPUT_TRANSFORM_FLIPPED:
case WL_OUTPUT_TRANSFORM_FLIPPED_90:
case WL_OUTPUT_TRANSFORM_FLIPPED_180:
case WL_OUTPUT_TRANSFORM_FLIPPED_270:
weston_matrix_scale(&rotation, -1, 1, 1);
break;
default:
break;
}
switch (window->buffer_transform) {
default:
case WL_OUTPUT_TRANSFORM_NORMAL:
case WL_OUTPUT_TRANSFORM_FLIPPED:
break;
case WL_OUTPUT_TRANSFORM_90:
case WL_OUTPUT_TRANSFORM_FLIPPED_90:
weston_matrix_rotate_xy(&rotation, 0, 1);
break;
case WL_OUTPUT_TRANSFORM_180:
case WL_OUTPUT_TRANSFORM_FLIPPED_180:
weston_matrix_rotate_xy(&rotation, -1, 0);
break;
case WL_OUTPUT_TRANSFORM_270:
case WL_OUTPUT_TRANSFORM_FLIPPED_270:
weston_matrix_rotate_xy(&rotation, 0, -1);
break;
}
if (display->swap_buffers_with_damage)
eglQuerySurface(display->egl.dpy, window->egl_surface,
EGL_BUFFER_AGE_EXT, &buffer_age);
glViewport(0, 0, window->buffer_size.width, window->buffer_size.height);
glUniformMatrix4fv(window->gl.rotation_uniform, 1, GL_FALSE,
(GLfloat *) rotation.d);
if (window->opaque || window->fullscreen)
glClearColor(0.0, 0.0, 0.0, 1);
else
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, INT32_MAX, INT32_MAX);
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->buffer_size.width / 4 - 1;
rect[1] = window->buffer_size.height / 4 - 1;
rect[2] = window->buffer_size.width / 2 + 2;
rect[3] = window->buffer_size.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 dont 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
display_handle_geometry(void *data,
struct wl_output *wl_output,
int32_t x, int32_t y,
int32_t physical_width,
int32_t physical_height,
int32_t subpixel,
const char *make,
const char *model,
int32_t transform)
{
struct output *output = data;
output->transform = transform;
output->display->window->needs_buffer_geometry_update = true;
}
static void
display_handle_mode(void *data,
struct wl_output *wl_output,
uint32_t flags,
int32_t width,
int32_t height,
int32_t refresh)
{
}
static void
display_handle_done(void *data,
struct wl_output *wl_output)
{
}
static void
display_handle_scale(void *data,
struct wl_output *wl_output,
int32_t scale)
{
struct output *output = data;
output->scale = scale;
output->display->window->needs_buffer_geometry_update = true;
}
static const struct wl_output_listener output_listener = {
display_handle_geometry,
display_handle_mode,
display_handle_done,
display_handle_scale
};
static void
display_add_output(struct display *d, uint32_t name)
{
struct output *output;
output = xzalloc(sizeof *output);
output->display = d;
output->scale = 1;
output->wl_output =
wl_registry_bind(d->registry, name, &wl_output_interface, 2);
output->name = name;
wl_list_insert(d->output_list.prev, &output->link);
wl_output_add_listener(output->wl_output, &output_listener, output);
}
static void
display_destroy_output(struct display *d, struct output *output)
{
destroy_window_output(d->window, output->wl_output);
wl_output_destroy(output->wl_output);
wl_list_remove(&output->link);
free(output);
}
static void
display_destroy_outputs(struct display *d)
{
struct output *tmp;
struct output *output;
wl_list_for_each_safe(output, tmp, &d->output_list, link)
display_destroy_output(d, output);
}
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 ?
}
} else if (strcmp(interface, "wl_output") == 0 && version >= 2) {
display_add_output(d, name);
}
}
static void
registry_handle_global_remove(void *data, struct wl_registry *registry,
uint32_t name)
{
struct display *d = data;
struct output *output;
wl_list_for_each(output, &d->output_list, link) {
if (output->name == name) {
display_destroy_output(d, output);
break;
}
}
}
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"
" -m\tRun in maximized 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.buffer_size.width = 250;
window.buffer_size.height = 250;
window.window_size = window.buffer_size;
window.buffer_scale = 1;
window.buffer_transform = WL_OUTPUT_TRANSFORM_NORMAL;
window.needs_buffer_geometry_update = false;
window.buffer_bpp = 0;
window.frame_sync = 1;
window.delay = 0;
wl_list_init(&display.output_list);
wl_list_init(&window.window_output_list);
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("-m", argv[i]) == 0)
window.maximized = 1;
else if (strcmp("-o", argv[i]) == 0)
window.opaque = 1;
else if (strcmp("-s", argv[i]) == 0)
window.buffer_bpp = 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_roundtrip(display.display);
if (!display.wm_base) {
fprintf(stderr, "xdg-shell support required. simple-egl exiting\n");
goto out_no_xdg_shell;
}
init_egl(&display, &window);
create_surface(&window);
/* we already have wait_for_configure set after create_surface() */
while (running && ret != -1 && window.wait_for_configure) {
ret = wl_display_dispatch(display.display);
/* wait until xdg_surface::configure acks the new dimensions */
if (window.wait_for_configure)
continue;
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) {
ret = wl_display_dispatch_pending(display.display);
redraw(&window);
}
fprintf(stderr, "simple-egl exiting\n");
destroy_surface(&window);
fini_egl(&display);
wl_surface_destroy(display.cursor_surface);
out_no_xdg_shell:
display_destroy_outputs(&display);
if (display.cursor_theme)
wl_cursor_theme_destroy(display.cursor_theme);
if (display.shm)
wl_shm_destroy(display.shm);
if (display.pointer)
wl_pointer_destroy(display.pointer);
if (display.keyboard)
wl_keyboard_destroy(display.keyboard);
if (display.touch)
wl_touch_destroy(display.touch);
if (display.seat)
wl_seat_destroy(display.seat);
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;
}