/* RetroArch - A frontend for libretro.
* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
* Copyright (C) 2011-2017 - Daniel De Matteis
*
* RetroArch is free software: you can redistribute it and/or modify it under the terms
* of the GNU General Public License as published by the Free Software Found-
* ation, either version 3 of the License, or (at your option) any later version.
*
* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with RetroArch.
* If not, see <http://www.gnu.org/licenses/>.
*/
#include <sys/poll.h>
#include <unistd.h>
#include <wayland-client.h>
#include <wayland-cursor.h>
#include <string/stdstring.h>
#ifdef HAVE_CONFIG_H
#include "../../config.h"
#endif
#ifdef HAVE_EGL
#include <wayland-egl.h>
#endif
#ifdef HAVE_VULKAN
#include "../common/vulkan_common.h"
#endif
#ifdef HAVE_EGL
#include "../common/egl_common.h"
#endif
#if defined(HAVE_OPENGL) || defined(HAVE_OPENGLES)
#include "../common/gl_common.h"
#endif
#include "../../frontend/frontend_driver.h"
#include "../../input/input_keyboard.h"
#include "../../input/input_keymaps.h"
#include "../../input/input_joypad_driver.h"
#include <linux/input.h>
typedef struct gfx_ctx_wayland_data
{
#ifdef HAVE_EGL
egl_ctx_data_t egl;
struct wl_egl_window *win;
#endif
bool resize;
int fd;
unsigned width;
unsigned height;
unsigned physical_width;
unsigned physical_height;
struct wl_display *dpy;
struct wl_registry *registry;
struct wl_compositor *compositor;
struct wl_surface *surface;
struct wl_shell_surface *shell_surf;
struct wl_shell *shell;
struct wl_keyboard *wl_keyboard;
struct wl_pointer *wl_pointer;
struct wl_seat *seat;
struct wl_shm *shm;
unsigned swap_interval;
bool core_hw_context_enable;
unsigned buffer_scale;
/* Wayland uses Linux keysyms. */
#define UDEV_MAX_KEYS (KEY_MAX + 7) / 8
uint8_t key_state[UDEV_MAX_KEYS];
bool keyboard_focus;
struct
{
int last_x, last_y;
int x, y;
int delta_x, delta_y;
bool last_valid;
bool focus;
bool left, right, middle;
} mouse;
struct
{
struct wl_cursor *default_cursor;
struct wl_cursor_theme *theme;
struct wl_surface *surface;
uint32_t serial;
bool visible;
} cursor;
const input_device_driver_t *joypad;
bool blocked;
#ifdef HAVE_VULKAN
gfx_ctx_vulkan_data_t vk;
#endif
} gfx_ctx_wayland_data_t;
static enum gfx_ctx_api wl_api = GFX_CTX_NONE;
#ifndef EGL_OPENGL_ES3_BIT_KHR
#define EGL_OPENGL_ES3_BIT_KHR 0x0040
#endif
#ifndef EGL_PLATFORM_WAYLAND_KHR
#define EGL_PLATFORM_WAYLAND_KHR 0x31D8
#endif
#ifdef HAVE_XKBCOMMON
/* FIXME: Move this into a header? */
int init_xkb(int fd, size_t size);
int handle_xkb(int code, int value);
void handle_xkb_state_mask(uint32_t depressed, uint32_t latched, uint32_t locked, uint32_t group);
void free_xkb(void);
#endif
static void keyboard_handle_keymap(void* data,
struct wl_keyboard* keyboard,
uint32_t format,
int fd,
uint32_t size)
{
(void)data;
if (format != WL_KEYBOARD_KEYMAP_FORMAT_XKB_V1)
{
close(fd);
return;
}
#ifdef HAVE_XKBCOMMON
if (init_xkb(fd, size) < 0)
RARCH_ERR("[Wayland]: Failed to init keymap.\n");
#endif
close(fd);
RARCH_LOG("[Wayland]: Loaded keymap.\n");
}
static void keyboard_handle_enter(void* data,
struct wl_keyboard* keyboard,
uint32_t serial,
struct wl_surface* surface,
struct wl_array* keys)
{
gfx_ctx_wayland_data_t *wl = (gfx_ctx_wayland_data_t*)data;
wl->keyboard_focus = true;
}
static void keyboard_handle_leave(void *data,
struct wl_keyboard *keyboard,
uint32_t serial,
struct wl_surface *surface)
{
gfx_ctx_wayland_data_t *wl = (gfx_ctx_wayland_data_t*)data;
wl->keyboard_focus = false;
}
static void keyboard_handle_key(void *data,
struct wl_keyboard *keyboard,
uint32_t serial,
uint32_t time,
uint32_t key,
uint32_t state)
{
(void)serial;
(void)time;
(void)keyboard;
int value = 1;
gfx_ctx_wayland_data_t *wl = (gfx_ctx_wayland_data_t*)data;
if (state == WL_KEYBOARD_KEY_STATE_PRESSED)
{
BIT_SET(wl->key_state, key);
value = 1;
}
else if (state == WL_KEYBOARD_KEY_STATE_RELEASED)
{
BIT_CLEAR(wl->key_state, key);
value = 0;
}
#ifdef HAVE_XKBCOMMON
if (handle_xkb(key, value) == 0)
return;
#endif
input_keyboard_event(value,
input_keymaps_translate_keysym_to_rk(key),
0, 0, RETRO_DEVICE_KEYBOARD);
}
static void keyboard_handle_modifiers(void *data,
struct wl_keyboard *keyboard,
uint32_t serial,
uint32_t modsDepressed,
uint32_t modsLatched,
uint32_t modsLocked,
uint32_t group)
{
(void)data;
(void)keyboard;
(void)serial;
#ifdef HAVE_XKBCOMMON
handle_xkb_state_mask(modsDepressed, modsLatched, modsLocked, group);
#else
(void)modsDepressed;
(void)modsLatched;
(void)modsLocked;
(void)group;
#endif
}
static void keyboard_handle_repeat_info(void *data,
struct wl_keyboard *wl_keyboard,
int32_t rate,
int32_t delay)
{
(void)data;
(void)wl_keyboard;
(void)rate;
(void)delay;
/* TODO: Seems like we'll need this to get repeat working. We'll have to do it on our own. */
}
static const struct wl_keyboard_listener keyboard_listener = {
keyboard_handle_keymap,
keyboard_handle_enter,
keyboard_handle_leave,
keyboard_handle_key,
keyboard_handle_modifiers,
keyboard_handle_repeat_info,
};
static void gfx_ctx_wl_show_mouse(void *data, bool state);
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)
{
gfx_ctx_wayland_data_t *wl = (gfx_ctx_wayland_data_t*)data;
(void)pointer;
(void)serial;
(void)surface;
wl->mouse.last_x = wl_fixed_to_int(sx * (wl_fixed_t)wl->buffer_scale);
wl->mouse.last_y = wl_fixed_to_int(sy * (wl_fixed_t)wl->buffer_scale);
wl->mouse.x = wl->mouse.last_x;
wl->mouse.y = wl->mouse.last_y;
wl->mouse.focus = true;
wl->cursor.serial = serial;
gfx_ctx_wl_show_mouse(data, wl->cursor.visible);
}
static void pointer_handle_leave(void *data,
struct wl_pointer *pointer,
uint32_t serial,
struct wl_surface *surface)
{
gfx_ctx_wayland_data_t *wl = (gfx_ctx_wayland_data_t*)data;
wl->mouse.focus = false;
(void)pointer;
(void)serial;
(void)surface;
}
static void pointer_handle_motion(void *data,
struct wl_pointer *pointer,
uint32_t time,
wl_fixed_t sx,
wl_fixed_t sy)
{
gfx_ctx_wayland_data_t *wl = (gfx_ctx_wayland_data_t*)data;
wl->mouse.x = wl_fixed_to_int((wl_fixed_t)wl->buffer_scale * sx);
wl->mouse.y = wl_fixed_to_int((wl_fixed_t)wl->buffer_scale * 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)
{
gfx_ctx_wayland_data_t *wl = (gfx_ctx_wayland_data_t*)data;
if (state == WL_POINTER_BUTTON_STATE_PRESSED)
{
if (button == BTN_LEFT)
{
wl->mouse.left = true;
/* This behavior matches mpv, seems like a decent way to support window moving for now. */
if (BIT_GET(wl->key_state, KEY_LEFTALT) && wl->shell_surf)
wl_shell_surface_move(wl->shell_surf, wl->seat, serial);
}
else if (button == BTN_RIGHT)
wl->mouse.right = true;
else if (button == BTN_MIDDLE)
wl->mouse.middle = true;
}
else
{
if (button == BTN_LEFT)
wl->mouse.left = false;
else if (button == BTN_RIGHT)
wl->mouse.right = false;
else if (button == BTN_MIDDLE)
wl->mouse.middle = false;
}
}
static void pointer_handle_axis(void *data,
struct wl_pointer *wl_pointer,
uint32_t time,
uint32_t axis,
wl_fixed_t value)
{
(void)data;
(void)wl_pointer;
(void)time;
(void)axis;
(void)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 seat_handle_capabilities(void *data,
struct wl_seat *seat, unsigned caps)
{
gfx_ctx_wayland_data_t *wl = (gfx_ctx_wayland_data_t*)data;
if ((caps & WL_SEAT_CAPABILITY_KEYBOARD) && !wl->wl_keyboard)
{
wl->wl_keyboard = wl_seat_get_keyboard(seat);
wl_keyboard_add_listener(wl->wl_keyboard, &keyboard_listener, wl);
}
else if (!(caps & WL_SEAT_CAPABILITY_KEYBOARD) && wl->wl_keyboard)
{
wl_keyboard_destroy(wl->wl_keyboard);
wl->wl_keyboard = NULL;
}
if ((caps & WL_SEAT_CAPABILITY_POINTER) && !wl->wl_pointer)
{
wl->wl_pointer = wl_seat_get_pointer(seat);
wl_pointer_add_listener(wl->wl_pointer, &pointer_listener, wl);
}
else if (!(caps & WL_SEAT_CAPABILITY_POINTER) && wl->wl_pointer)
{
wl_pointer_destroy(wl->wl_pointer);
wl->wl_pointer = NULL;
}
}
static void seat_handle_name(void *data, struct wl_seat *seat, const char *name)
{
(void)data;
(void)seat;
RARCH_LOG("[Wayland]: Seat name: %s.\n", name);
}
static const struct wl_seat_listener seat_listener = {
seat_handle_capabilities,
seat_handle_name,
};
/* Shell surface callbacks. */
static void shell_surface_handle_ping(void *data,
struct wl_shell_surface *shell_surface,
uint32_t serial)
{
(void)data;
wl_shell_surface_pong(shell_surface, serial);
}
static void shell_surface_handle_configure(void *data,
struct wl_shell_surface *shell_surface,
uint32_t edges, int32_t width, int32_t height)
{
gfx_ctx_wayland_data_t *wl = (gfx_ctx_wayland_data_t*)data;
(void)shell_surface;
(void)edges;
wl->width = wl->buffer_scale * width;
wl->height = wl->buffer_scale * height;
RARCH_LOG("[Wayland]: Surface configure: %u x %u.\n",
wl->width, wl->height);
}
static void shell_surface_handle_popup_done(void *data,
struct wl_shell_surface *shell_surface)
{
(void)data;
(void)shell_surface;
}
static const struct wl_shell_surface_listener shell_surface_listener = {
shell_surface_handle_ping,
shell_surface_handle_configure,
shell_surface_handle_popup_done,
};
static void display_handle_geometry(void *data,
struct wl_output *output,
int x, int y,
int physical_width, int physical_height,
int subpixel,
const char *make,
const char *model,
int transform)
{
(void)data;
(void)output;
(void)x;
(void)y;
(void)subpixel;
(void)make;
(void)model;
(void)transform;
gfx_ctx_wayland_data_t *wl = (gfx_ctx_wayland_data_t*)data;
wl->physical_width = physical_width;
wl->physical_height = physical_height;
RARCH_LOG("[Wayland]: Physical width: %d mm x %d mm.\n",
physical_width, physical_height);
}
static void display_handle_mode(void *data,
struct wl_output *output,
uint32_t flags,
int width,
int height,
int refresh)
{
(void)output;
(void)flags;
gfx_ctx_wayland_data_t *wl = (gfx_ctx_wayland_data_t*)data;
wl->width = width;
wl->height = height;
/* Certain older Wayland implementations report in Hz,
* but it should be mHz. */
RARCH_LOG("[Wayland]: Video mode: %d x %d @ %.4f Hz.\n",
width, height, refresh > 1000 ? refresh / 1000.0 : (double)refresh);
}
static void display_handle_done(void *data,
struct wl_output *output)
{
(void)data;
(void)output;
}
static void display_handle_scale(void *data,
struct wl_output *output,
int32_t factor)
{
gfx_ctx_wayland_data_t *wl = (gfx_ctx_wayland_data_t*)data;
RARCH_LOG("[Wayland]: Setting buffer scale factor to %d.\n", factor);
wl->buffer_scale = factor;
}
static const struct wl_output_listener output_listener = {
display_handle_geometry,
display_handle_mode,
display_handle_done,
display_handle_scale,
};
/* Registry callbacks. */
static void registry_handle_global(void *data, struct wl_registry *reg,
uint32_t id, const char *interface, uint32_t version)
{
struct wl_output *output = NULL;
gfx_ctx_wayland_data_t *wl = (gfx_ctx_wayland_data_t*)data;
(void)version;
if (memcmp(interface, "wl_compositor", 13) == 0)
wl->compositor = (struct wl_compositor*)wl_registry_bind(reg,
id, &wl_compositor_interface, 3);
else if (memcmp(interface, "wl_output", 9) == 0)
{
output = (struct wl_output*)wl_registry_bind(reg,
id, &wl_output_interface, 2);
wl_output_add_listener(output, &output_listener, wl);
wl_display_roundtrip(wl->dpy);
}
else if (memcmp(interface, "wl_shell", 8) == 0)
wl->shell = (struct wl_shell*)
wl_registry_bind(reg, id, &wl_shell_interface, 1);
else if (memcmp(interface, "wl_shm", 6) == 0)
wl->shm = (struct wl_shm*)wl_registry_bind(reg, id, &wl_shm_interface, 1);
else if (memcmp(interface, "wl_seat", 7) == 0)
{
wl->seat = (struct wl_seat*)wl_registry_bind(reg, id, &wl_seat_interface, 4);
wl_seat_add_listener(wl->seat, &seat_listener, wl);
}
}
static void registry_handle_global_remove(void *data,
struct wl_registry *registry, uint32_t id)
{
(void)data;
(void)registry;
(void)id;
}
static const struct wl_registry_listener registry_listener = {
registry_handle_global,
registry_handle_global_remove,
};
static void gfx_ctx_wl_get_video_size(void *data,
unsigned *width, unsigned *height)
{
gfx_ctx_wayland_data_t *wl = (gfx_ctx_wayland_data_t*)data;
*width = wl->width;
*height = wl->height;
}
static void gfx_ctx_wl_destroy_resources(gfx_ctx_wayland_data_t *wl)
{
if (!wl)
return;
switch (wl_api)
{
case GFX_CTX_OPENGL_API:
case GFX_CTX_OPENGL_ES_API:
case GFX_CTX_OPENVG_API:
#ifdef HAVE_EGL
egl_destroy(&wl->egl);
if (wl->win)
wl_egl_window_destroy(wl->win);
#endif
break;
case GFX_CTX_VULKAN_API:
#ifdef HAVE_VULKAN
vulkan_context_destroy(&wl->vk, wl->surface);
if (wl->fd >= 0)
close(wl->fd);
#endif
break;
case GFX_CTX_NONE:
default:
break;
}
#ifdef HAVE_XKBCOMMON
free_xkb();
#endif
if (wl->wl_keyboard)
wl_keyboard_destroy(wl->wl_keyboard);
if (wl->wl_pointer)
wl_pointer_destroy(wl->wl_pointer);
if (wl->cursor.theme)
wl_cursor_theme_destroy(wl->cursor.theme);
if (wl->cursor.surface)
wl_surface_destroy(wl->cursor.surface);
if (wl->seat)
wl_seat_destroy(wl->seat);
if (wl->shell)
wl_shell_destroy(wl->shell);
if (wl->compositor)
wl_compositor_destroy(wl->compositor);
if (wl->registry)
wl_registry_destroy(wl->registry);
if (wl->shell_surf)
wl_shell_surface_destroy(wl->shell_surf);
if (wl->surface)
wl_surface_destroy(wl->surface);
if (wl->dpy)
{
wl_display_flush(wl->dpy);
wl_display_disconnect(wl->dpy);
}
#ifdef HAVE_EGL
wl->win = NULL;
#endif
wl->shell = NULL;
wl->compositor = NULL;
wl->registry = NULL;
wl->dpy = NULL;
wl->shell_surf = NULL;
wl->surface = NULL;
wl->width = 0;
wl->height = 0;
}
static void flush_wayland_fd(gfx_ctx_wayland_data_t *wl)
{
struct pollfd fd = {0};
wl_display_dispatch_pending(wl->dpy);
wl_display_flush(wl->dpy);
fd.fd = wl->fd;
fd.events = POLLIN | POLLOUT | POLLERR | POLLHUP;
if (poll(&fd, 1, 0) > 0)
{
if (fd.revents & (POLLERR | POLLHUP))
{
close(wl->fd);
frontend_driver_set_signal_handler_state(1);
}
if (fd.revents & POLLIN)
wl_display_dispatch(wl->dpy);
if (fd.revents & POLLOUT)
wl_display_flush(wl->dpy);
}
}
static void gfx_ctx_wl_check_window(void *data, bool *quit,
bool *resize, unsigned *width, unsigned *height,
bool is_shutdown)
{
unsigned new_width, new_height;
gfx_ctx_wayland_data_t *wl = (gfx_ctx_wayland_data_t*)data;
flush_wayland_fd(wl);
new_width = *width;
new_height = *height;
gfx_ctx_wl_get_video_size(data, &new_width, &new_height);
switch (wl_api)
{
case GFX_CTX_VULKAN_API:
#ifdef HAVE_VULKAN
/* Swapchains are recreated in set_resize as a
* central place, so use that to trigger swapchain reinit. */
*resize = wl->vk.need_new_swapchain;
#endif
break;
case GFX_CTX_NONE:
default:
break;
}
if (new_width != *width || new_height != *height)
{
*resize = true;
*width = new_width;
*height = new_height;
}
*quit = (bool)frontend_driver_get_signal_handler_state();
}
static bool gfx_ctx_wl_set_resize(void *data, unsigned width, unsigned height)
{
gfx_ctx_wayland_data_t *wl = (gfx_ctx_wayland_data_t*)data;
switch (wl_api)
{
case GFX_CTX_OPENGL_API:
case GFX_CTX_OPENGL_ES_API:
case GFX_CTX_OPENVG_API:
#ifdef HAVE_EGL
wl_egl_window_resize(wl->win, width, height, 0, 0);
#endif
break;
case GFX_CTX_VULKAN_API:
#ifdef HAVE_VULKAN
wl->width = width;
wl->height = height;
if (vulkan_create_swapchain(&wl->vk, width, height, wl->swap_interval))
wl->vk.context.invalid_swapchain = true;
else
{
RARCH_ERR("[Wayland/Vulkan]: Failed to update swapchain.\n");
return false;
}
wl->vk.need_new_swapchain = false;
#endif
break;
case GFX_CTX_NONE:
default:
break;
}
return true;
}
static void gfx_ctx_wl_update_title(void *data, video_frame_info_t *video_info)
{
gfx_ctx_wayland_data_t *wl = (gfx_ctx_wayland_data_t*)data;
char title[128];
title[0] = '\0';
video_driver_get_window_title(title, sizeof(title));
if (wl && title[0])
wl_shell_surface_set_title(wl->shell_surf, title);
}
static bool gfx_ctx_wl_get_metrics(void *data,
enum display_metric_types type, float *value)
{
gfx_ctx_wayland_data_t *wl = (gfx_ctx_wayland_data_t*)data;
if (!wl || wl->physical_width == 0 || wl->physical_height == 0)
return false;
switch (type)
{
case DISPLAY_METRIC_MM_WIDTH:
*value = (float)wl->physical_width;
break;
case DISPLAY_METRIC_MM_HEIGHT:
*value = (float)wl->physical_height;
break;
case DISPLAY_METRIC_DPI:
*value = (float)wl->width * 25.4f / (float)wl->physical_width;
break;
default:
*value = 0.0f;
return false;
}
return true;
}
#define DEFAULT_WINDOWED_WIDTH 640
#define DEFAULT_WINDOWED_HEIGHT 480
#ifdef HAVE_EGL
#define WL_EGL_ATTRIBS_BASE \
EGL_SURFACE_TYPE, EGL_WINDOW_BIT, \
EGL_RED_SIZE, 1, \
EGL_GREEN_SIZE, 1, \
EGL_BLUE_SIZE, 1, \
EGL_ALPHA_SIZE, 0, \
EGL_DEPTH_SIZE, 0
#endif
static void *gfx_ctx_wl_init(video_frame_info_t *video_info, void *video_driver)
{
#ifdef HAVE_OPENGL
static const EGLint egl_attribs_gl[] = {
WL_EGL_ATTRIBS_BASE,
EGL_RENDERABLE_TYPE, EGL_OPENGL_BIT,
EGL_NONE,
};
#endif
#ifdef HAVE_OPENGLES
#ifdef HAVE_OPENGLES2
static const EGLint egl_attribs_gles[] = {
WL_EGL_ATTRIBS_BASE,
EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
EGL_NONE,
};
#endif
#ifdef HAVE_OPENGLES3
#ifdef EGL_KHR_create_context
static const EGLint egl_attribs_gles3[] = {
WL_EGL_ATTRIBS_BASE,
EGL_RENDERABLE_TYPE, EGL_OPENGL_ES3_BIT_KHR,
EGL_NONE,
};
#endif
#endif
#endif
#ifdef HAVE_EGL
static const EGLint egl_attribs_vg[] = {
WL_EGL_ATTRIBS_BASE,
EGL_RENDERABLE_TYPE, EGL_OPENVG_BIT,
EGL_NONE,
};
EGLint major = 0, minor = 0;
EGLint n;
const EGLint *attrib_ptr = NULL;
#endif
gfx_ctx_wayland_data_t *wl = (gfx_ctx_wayland_data_t*)
calloc(1, sizeof(gfx_ctx_wayland_data_t));
if (!wl)
return NULL;
(void)video_driver;
#ifdef HAVE_EGL
switch (wl_api)
{
case GFX_CTX_OPENGL_API:
#ifdef HAVE_OPENGL
attrib_ptr = egl_attribs_gl;
#endif
break;
case GFX_CTX_OPENGL_ES_API:
#ifdef HAVE_OPENGLES
#ifdef HAVE_OPENGLES3
#ifdef EGL_KHR_create_context
if (g_egl_major >= 3)
attrib_ptr = egl_attribs_gles3;
else
#endif
#endif
#ifdef HAVE_OPENGLES2
attrib_ptr = egl_attribs_gles;
#endif
#endif
break;
case GFX_CTX_OPENVG_API:
#ifdef HAVE_VG
attrib_ptr = egl_attribs_vg;
#endif
break;
case GFX_CTX_NONE:
default:
break;
}
#endif
frontend_driver_destroy_signal_handler_state();
wl->dpy = wl_display_connect(NULL);
wl->buffer_scale = 1;
if (!wl->dpy)
{
RARCH_ERR("[Wayland]: Failed to connect to Wayland server.\n");
goto error;
}
frontend_driver_install_signal_handler();
wl->registry = wl_display_get_registry(wl->dpy);
wl_registry_add_listener(wl->registry, ®istry_listener, wl);
wl_display_roundtrip(wl->dpy);
if (!wl->compositor)
{
RARCH_ERR("[Wayland]: Failed to create compositor.\n");
goto error;
}
if (!wl->shm)
{
RARCH_ERR("[Wayland]: Failed to create shm.\n");
goto error;
}
if (!wl->shell)
{
RARCH_ERR("[Wayland]: Failed to create shell.\n");
goto error;
}
wl->fd = wl_display_get_fd(wl->dpy);
switch (wl_api)
{
case GFX_CTX_OPENGL_API:
case GFX_CTX_OPENGL_ES_API:
case GFX_CTX_OPENVG_API:
#ifdef HAVE_EGL
if (!egl_init_context(&wl->egl,
EGL_PLATFORM_WAYLAND_KHR,
(EGLNativeDisplayType)wl->dpy,
&major, &minor, &n, attrib_ptr))
{
egl_report_error();
goto error;
}
if (n == 0 || !egl_has_config(&wl->egl))
goto error;
#endif
break;
case GFX_CTX_VULKAN_API:
#ifdef HAVE_VULKAN
if (!vulkan_context_init(&wl->vk, VULKAN_WSI_WAYLAND))
goto error;
#endif
break;
case GFX_CTX_NONE:
default:
break;
}
wl->keyboard_focus = true;
wl->mouse.focus = true;
wl->cursor.surface = wl_compositor_create_surface(wl->compositor);
wl->cursor.theme = wl_cursor_theme_load(NULL, 16, wl->shm);
wl->cursor.default_cursor = wl_cursor_theme_get_cursor(wl->cursor.theme, "left_ptr");
flush_wayland_fd(wl);
return wl;
error:
gfx_ctx_wl_destroy_resources(wl);
if (wl)
free(wl);
return NULL;
}
#ifdef HAVE_EGL
static EGLint *egl_fill_attribs(gfx_ctx_wayland_data_t *wl, EGLint *attr)
{
switch (wl_api)
{
#ifdef EGL_KHR_create_context
case GFX_CTX_OPENGL_API:
{
bool debug = false;
#ifdef HAVE_OPENGL
unsigned version = wl->egl.major * 1000 + wl->egl.minor;
bool core = version >= 3001;
#ifndef GL_DEBUG
struct retro_hw_render_callback *hwr =
video_driver_get_hw_context();
#endif
#ifdef GL_DEBUG
debug = true;
#else
debug = hwr->debug_context;
#endif
if (core)
{
*attr++ = EGL_CONTEXT_MAJOR_VERSION_KHR;
*attr++ = wl->egl.major;
*attr++ = EGL_CONTEXT_MINOR_VERSION_KHR;
*attr++ = wl->egl.minor;
/* Technically, we don't have core/compat until 3.2.
* Version 3.1 is either compat or not depending on GL_ARB_compatibility. */
if (version >= 3002)
{
*attr++ = EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR;
*attr++ = EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR;
}
}
if (debug)
{
*attr++ = EGL_CONTEXT_FLAGS_KHR;
*attr++ = EGL_CONTEXT_OPENGL_DEBUG_BIT_KHR;
}
#endif
break;
}
#endif
case GFX_CTX_OPENGL_ES_API:
#ifdef HAVE_OPENGLES
*attr++ = EGL_CONTEXT_CLIENT_VERSION; /* Same as EGL_CONTEXT_MAJOR_VERSION */
*attr++ = wl->egl.major ? (EGLint)wl->egl.major : 2;
#ifdef EGL_KHR_create_context
if (wl->egl.minor > 0)
{
*attr++ = EGL_CONTEXT_MINOR_VERSION_KHR;
*attr++ = wl->egl.minor;
}
#endif
#endif
break;
case GFX_CTX_NONE:
default:
break;
}
*attr = EGL_NONE;
return attr;
}
#endif
static void gfx_ctx_wl_destroy(void *data)
{
gfx_ctx_wayland_data_t *wl = (gfx_ctx_wayland_data_t*)data;
if (!wl)
return;
gfx_ctx_wl_destroy_resources(wl);
switch (wl_api)
{
case GFX_CTX_VULKAN_API:
#if defined(HAVE_VULKAN) && defined(HAVE_THREADS)
if (wl->vk.context.queue_lock)
slock_free(wl->vk.context.queue_lock);
#endif
break;
case GFX_CTX_NONE:
default:
break;
}
free(wl);
}
static void gfx_ctx_wl_set_swap_interval(void *data, unsigned swap_interval)
{
gfx_ctx_wayland_data_t *wl = (gfx_ctx_wayland_data_t*)data;
switch (wl_api)
{
case GFX_CTX_OPENGL_API:
case GFX_CTX_OPENGL_ES_API:
case GFX_CTX_OPENVG_API:
#ifdef HAVE_EGL
egl_set_swap_interval(&wl->egl, swap_interval);
#endif
break;
case GFX_CTX_VULKAN_API:
#ifdef HAVE_VULKAN
if (wl->swap_interval != swap_interval)
{
wl->swap_interval = swap_interval;
if (wl->vk.swapchain)
wl->vk.need_new_swapchain = true;
}
#endif
break;
case GFX_CTX_NONE:
default:
break;
}
}
static bool gfx_ctx_wl_set_video_mode(void *data,
video_frame_info_t *video_info,
unsigned width, unsigned height,
bool fullscreen)
{
#ifdef HAVE_EGL
EGLint egl_attribs[16];
EGLint *attr = egl_fill_attribs(
(gfx_ctx_wayland_data_t*)data, egl_attribs);
#endif
gfx_ctx_wayland_data_t *wl = (gfx_ctx_wayland_data_t*)data;
wl->width = width ? width : DEFAULT_WINDOWED_WIDTH;
wl->height = height ? height : DEFAULT_WINDOWED_HEIGHT;
wl->surface = wl_compositor_create_surface(wl->compositor);
wl_surface_set_buffer_scale(wl->surface, wl->buffer_scale);
switch (wl_api)
{
case GFX_CTX_OPENGL_API:
case GFX_CTX_OPENGL_ES_API:
case GFX_CTX_OPENVG_API:
#ifdef HAVE_EGL
wl->win = wl_egl_window_create(wl->surface, wl->width, wl->height);
#endif
break;
case GFX_CTX_NONE:
default:
break;
}
wl->shell_surf = wl_shell_get_shell_surface(wl->shell, wl->surface);
wl_shell_surface_add_listener(wl->shell_surf, &shell_surface_listener, wl);
wl_shell_surface_set_toplevel(wl->shell_surf);
wl_shell_surface_set_class(wl->shell_surf, "RetroArch");
wl_shell_surface_set_title(wl->shell_surf, "RetroArch");
switch (wl_api)
{
case GFX_CTX_OPENGL_API:
case GFX_CTX_OPENGL_ES_API:
case GFX_CTX_OPENVG_API:
#ifdef HAVE_EGL
if (!egl_create_context(&wl->egl, (attr != egl_attribs) ? egl_attribs : NULL))
{
egl_report_error();
goto error;
}
if (!egl_create_surface(&wl->egl, (EGLNativeWindowType)wl->win))
goto error;
egl_set_swap_interval(&wl->egl, wl->egl.interval);
#endif
break;
case GFX_CTX_NONE:
default:
break;
}
if (fullscreen)
wl_shell_surface_set_fullscreen(wl->shell_surf,
WL_SHELL_SURFACE_FULLSCREEN_METHOD_DEFAULT, 0, NULL);
flush_wayland_fd(wl);
switch (wl_api)
{
case GFX_CTX_VULKAN_API:
wl_display_roundtrip(wl->dpy);
#ifdef HAVE_VULKAN
if (!vulkan_surface_create(&wl->vk, VULKAN_WSI_WAYLAND,
wl->dpy, wl->surface,
wl->width, wl->height, wl->swap_interval))
goto error;
#endif
break;
case GFX_CTX_NONE:
default:
break;
}
if (fullscreen)
{
wl->cursor.visible = false;
gfx_ctx_wl_show_mouse(wl, false);
}
else
wl->cursor.visible = true;
return true;
error:
gfx_ctx_wl_destroy(data);
return false;
}
static int16_t input_wl_mouse_state(gfx_ctx_wayland_data_t *wl, unsigned id)
{
switch (id)
{
case RETRO_DEVICE_ID_MOUSE_X:
return wl->mouse.delta_x;
case RETRO_DEVICE_ID_MOUSE_Y:
return wl->mouse.delta_y;
case RETRO_DEVICE_ID_MOUSE_LEFT:
return wl->mouse.left;
case RETRO_DEVICE_ID_MOUSE_RIGHT:
return wl->mouse.right;
case RETRO_DEVICE_ID_MOUSE_MIDDLE:
return wl->mouse.middle;
/* TODO: Rest of the mouse inputs. */
}
return 0;
}
static int16_t input_wl_lightgun_state(gfx_ctx_wayland_data_t *wl, unsigned id)
{
switch (id)
{
case RETRO_DEVICE_ID_LIGHTGUN_X:
return wl->mouse.delta_x;
case RETRO_DEVICE_ID_LIGHTGUN_Y:
return wl->mouse.delta_y;
case RETRO_DEVICE_ID_LIGHTGUN_TRIGGER:
return wl->mouse.left;
case RETRO_DEVICE_ID_LIGHTGUN_CURSOR:
return wl->mouse.middle;
case RETRO_DEVICE_ID_LIGHTGUN_TURBO:
return wl->mouse.right;
case RETRO_DEVICE_ID_LIGHTGUN_START:
return wl->mouse.middle && wl->mouse.right;
case RETRO_DEVICE_ID_LIGHTGUN_PAUSE:
return wl->mouse.middle && wl->mouse.left;
}
return 0;
}
static void input_wl_poll(void *data)
{
gfx_ctx_wayland_data_t *wl = (gfx_ctx_wayland_data_t*)data;
if (!wl)
return;
flush_wayland_fd(wl);
wl->mouse.delta_x = wl->mouse.x - wl->mouse.last_x;
wl->mouse.delta_y = wl->mouse.y - wl->mouse.last_y;
wl->mouse.last_x = wl->mouse.x;
wl->mouse.last_y = wl->mouse.y;
if (!wl->mouse.focus)
{
wl->mouse.delta_x = 0;
wl->mouse.delta_y = 0;
}
if (wl->joypad)
wl->joypad->poll();
}
bool input_wl_is_pressed(gfx_ctx_wayland_data_t *wl, const struct retro_keybind *binds, unsigned id)
{
if (id < RARCH_BIND_LIST_END)
{
const struct retro_keybind *bind = &binds[id];
unsigned bit = input_keymaps_translate_rk_to_keysym(binds[id].key);
return BIT_GET(wl->key_state, bit);
}
return false;
}
static int16_t input_wl_analog_pressed(gfx_ctx_wayland_data_t *wl, const struct retro_keybind *binds,
unsigned idx, unsigned id)
{
unsigned id_minus = 0;
unsigned id_plus = 0;
int16_t pressed_minus = 0;
int16_t pressed_plus = 0;
input_conv_analog_id_to_bind_id(idx, id, &id_minus, &id_plus);
if (binds && binds[id_minus].valid && input_wl_is_pressed(wl, binds, id_minus))
pressed_minus = -0x7fff;
if (binds && binds[id_plus].valid && input_wl_is_pressed(wl, binds, id_plus))
pressed_plus = 0x7fff;
return pressed_plus + pressed_minus;
}
bool input_wl_state_kb(gfx_ctx_wayland_data_t *wl, const struct retro_keybind **binds,
unsigned port, unsigned device, unsigned idx, unsigned id)
{
unsigned bit = input_keymaps_translate_rk_to_keysym((enum retro_key)id);
return id < RETROK_LAST && BIT_GET(wl->key_state, bit);
}
static int16_t input_wl_pointer_state(gfx_ctx_wayland_data_t *wl,
unsigned idx, unsigned id, bool screen)
{
struct video_viewport vp;
bool inside = false;
int16_t res_x = 0;
int16_t res_y = 0;
int16_t res_screen_x = 0;
int16_t res_screen_y = 0;
vp.x = 0;
vp.y = 0;
vp.width = 0;
vp.height = 0;
vp.full_width = 0;
vp.full_height = 0;
if (!(video_driver_translate_coord_viewport_wrap(&vp, wl->mouse.x, wl->mouse.y,
&res_x, &res_y, &res_screen_x, &res_screen_y)))
return 0;
if (screen)
{
res_x = res_screen_x;
res_y = res_screen_y;
}
inside = (res_x >= -0x7fff) && (res_y >= -0x7fff);
if (!inside)
return 0;
switch (id)
{
case RETRO_DEVICE_ID_POINTER_X:
return res_x;
case RETRO_DEVICE_ID_POINTER_Y:
return res_y;
case RETRO_DEVICE_ID_POINTER_PRESSED:
return wl->mouse.left;
}
return 0;
}
static int16_t input_wl_state(void *data,
rarch_joypad_info_t joypad_info,
const struct retro_keybind **binds,
unsigned port, unsigned device, unsigned idx, unsigned id)
{
int16_t ret;
gfx_ctx_wayland_data_t *wl = (gfx_ctx_wayland_data_t*)data;
if (!wl)
return 0;
switch (device)
{
case RETRO_DEVICE_JOYPAD:
if (binds[port] && binds[port][id].valid)
return input_wl_is_pressed(wl, binds[port], id) ||
input_joypad_pressed(wl->joypad, joypad_info, port, binds[port], id);
break;
case RETRO_DEVICE_ANALOG:
ret = input_wl_analog_pressed(wl, binds[port], idx, id);
if (!ret && binds[port])
ret = input_joypad_analog(wl->joypad, joypad_info, port, idx, id, binds[port]);
return ret;
case RETRO_DEVICE_KEYBOARD:
return input_wl_state_kb(wl, binds, port, device, idx, id);
case RETRO_DEVICE_MOUSE:
return input_wl_mouse_state(wl, id);
case RETRO_DEVICE_POINTER:
case RARCH_DEVICE_POINTER_SCREEN:
if (idx == 0)
return input_wl_pointer_state(wl, idx, id,
device == RARCH_DEVICE_POINTER_SCREEN);
break;
case RETRO_DEVICE_LIGHTGUN:
return input_wl_lightgun_state(wl, id);
}
return 0;
}
static void input_wl_free(void *data)
{
gfx_ctx_wayland_data_t *wl = (gfx_ctx_wayland_data_t*)data;
if (!wl)
return;
if (wl->joypad)
wl->joypad->destroy();
}
static bool input_wl_init(void *data, const char *joypad_name)
{
gfx_ctx_wayland_data_t *wl = (gfx_ctx_wayland_data_t*)data;
if (!wl)
return false;
wl->joypad = input_joypad_init_driver(joypad_name, wl);
if (!wl->joypad)
return false;
input_keymaps_init_keyboard_lut(rarch_key_map_linux);
return true;
}
static uint64_t input_wl_get_capabilities(void *data)
{
(void)data;
return
(1 << RETRO_DEVICE_JOYPAD) |
(1 << RETRO_DEVICE_ANALOG) |
(1 << RETRO_DEVICE_KEYBOARD) |
(1 << RETRO_DEVICE_MOUSE) |
(1 << RETRO_DEVICE_LIGHTGUN);
}
static void input_wl_grab_mouse(void *data, bool state)
{
/* Dummy for now. Might be useful in the future. */
(void)data;
(void)state;
}
static bool input_wl_set_rumble(void *data, unsigned port, enum retro_rumble_effect effect, uint16_t strength)
{
gfx_ctx_wayland_data_t *wl = (gfx_ctx_wayland_data_t*)data;
if (wl && wl->joypad)
return input_joypad_set_rumble(wl->joypad, port, effect, strength);
return false;
}
static const input_device_driver_t *input_wl_get_joypad_driver(void *data)
{
gfx_ctx_wayland_data_t *wl = (gfx_ctx_wayland_data_t*)data;
if (!wl)
return NULL;
return wl->joypad;
}
static bool input_wl_keyboard_mapping_is_blocked(void *data)
{
gfx_ctx_wayland_data_t *wl = (gfx_ctx_wayland_data_t*)data;
if (!wl)
return false;
return wl->blocked;
}
static void input_wl_keyboard_mapping_set_block(void *data, bool value)
{
gfx_ctx_wayland_data_t *wl = (gfx_ctx_wayland_data_t*)data;
if (!wl)
return;
wl->blocked = value;
}
static bool input_wl_meta_key_pressed(void *data, int key)
{
(void)data;
(void)key;
/* FIXME: What is this supposed to do? */
return false;
}
static const input_driver_t input_wayland = {
NULL,
input_wl_poll,
input_wl_state,
input_wl_meta_key_pressed,
input_wl_free,
NULL,
NULL,
input_wl_get_capabilities,
"wayland",
input_wl_grab_mouse,
NULL,
input_wl_set_rumble,
input_wl_get_joypad_driver,
NULL,
input_wl_keyboard_mapping_is_blocked,
input_wl_keyboard_mapping_set_block,
};
static void gfx_ctx_wl_input_driver(void *data,
const char *joypad_name,
const input_driver_t **input, void **input_data)
{
/* Input is heavily tied to the window stuff on Wayland, so just implement the input driver here. */
if (!input_wl_init(data, joypad_name))
{
*input = NULL;
*input_data = NULL;
}
else
{
*input = &input_wayland;
*input_data = data;
}
}
static bool gfx_ctx_wl_has_focus(void *data)
{
(void)data;
gfx_ctx_wayland_data_t *wl = (gfx_ctx_wayland_data_t*)data;
return wl->keyboard_focus;
}
static bool gfx_ctx_wl_suppress_screensaver(void *data, bool enable)
{
(void)data;
(void)enable;
return true;
}
static bool gfx_ctx_wl_has_windowed(void *data)
{
(void)data;
return true;
}
static bool gfx_ctx_wl_bind_api(void *video_driver,
enum gfx_ctx_api api, unsigned major, unsigned minor)
{
#ifdef HAVE_EGL
g_egl_major = major;
g_egl_minor = minor;
#endif
switch (api)
{
case GFX_CTX_OPENGL_API:
#ifdef HAVE_OPENGL
#ifndef EGL_KHR_create_context
if ((major * 1000 + minor) >= 3001)
return false;
#endif
wl_api = api;
return eglBindAPI(EGL_OPENGL_API);
#else
break;
#endif
case GFX_CTX_OPENGL_ES_API:
#ifdef HAVE_OPENGLES
#ifndef EGL_KHR_create_context
if (major >= 3)
return false;
#endif
wl_api = api;
return eglBindAPI(EGL_OPENGL_ES_API);
#else
break;
#endif
case GFX_CTX_OPENVG_API:
#ifdef HAVE_VG
wl_api = api;
return eglBindAPI(EGL_OPENVG_API);
#else
break;
#endif
case GFX_CTX_VULKAN_API:
#ifdef HAVE_VULKAN
wl_api = api;
return true;
#else
break;
#endif
case GFX_CTX_NONE:
default:
break;
}
return false;
}
#ifdef HAVE_VULKAN
static void *gfx_ctx_wl_get_context_data(void *data)
{
gfx_ctx_wayland_data_t *wl = (gfx_ctx_wayland_data_t*)data;
return &wl->vk.context;
}
#endif
static void gfx_ctx_wl_swap_buffers(void *data, video_frame_info_t *video_info)
{
gfx_ctx_wayland_data_t *wl = (gfx_ctx_wayland_data_t*)data;
switch (wl_api)
{
case GFX_CTX_OPENGL_API:
case GFX_CTX_OPENGL_ES_API:
case GFX_CTX_OPENVG_API:
#ifdef HAVE_EGL
egl_swap_buffers(&wl->egl);
#endif
break;
case GFX_CTX_VULKAN_API:
#ifdef HAVE_VULKAN
vulkan_present(&wl->vk, wl->vk.context.current_swapchain_index);
vulkan_acquire_next_image(&wl->vk);
flush_wayland_fd(wl);
#endif
break;
case GFX_CTX_NONE:
default:
break;
}
}
static gfx_ctx_proc_t gfx_ctx_wl_get_proc_address(const char *symbol)
{
switch (wl_api)
{
case GFX_CTX_OPENGL_API:
case GFX_CTX_OPENGL_ES_API:
case GFX_CTX_OPENVG_API:
#ifdef HAVE_EGL
return egl_get_proc_address(symbol);
#else
break;
#endif
case GFX_CTX_NONE:
default:
break;
}
return NULL;
}
static void gfx_ctx_wl_bind_hw_render(void *data, bool enable)
{
gfx_ctx_wayland_data_t *wl = (gfx_ctx_wayland_data_t*)data;
switch (wl_api)
{
case GFX_CTX_OPENGL_API:
case GFX_CTX_OPENGL_ES_API:
case GFX_CTX_OPENVG_API:
#ifdef HAVE_EGL
egl_bind_hw_render(&wl->egl, enable);
#endif
break;
case GFX_CTX_NONE:
default:
break;
}
}
static uint32_t gfx_ctx_wl_get_flags(void *data)
{
uint32_t flags = 0;
gfx_ctx_wayland_data_t *wl = (gfx_ctx_wayland_data_t*)data;
if (wl->core_hw_context_enable)
{
BIT32_SET(flags, GFX_CTX_FLAGS_GL_CORE_CONTEXT);
}
else
BIT32_SET(flags, GFX_CTX_FLAGS_NONE);
return flags;
}
static void gfx_ctx_wl_set_flags(void *data, uint32_t flags)
{
gfx_ctx_wayland_data_t *wl = (gfx_ctx_wayland_data_t*)data;
if (BIT32_GET(flags, GFX_CTX_FLAGS_GL_CORE_CONTEXT))
wl->core_hw_context_enable = true;
}
static void gfx_ctx_wl_show_mouse(void *data, bool state)
{
gfx_ctx_wayland_data_t *wl = (gfx_ctx_wayland_data_t*)data;
if (!wl->wl_pointer)
return;
if (state)
{
struct wl_cursor_image *image = wl->cursor.default_cursor->images[0];
wl_pointer_set_cursor(wl->wl_pointer, wl->cursor.serial, wl->cursor.surface, image->hotspot_x, image->hotspot_y);
wl_surface_attach(wl->cursor.surface, wl_cursor_image_get_buffer(image), 0, 0);
wl_surface_damage(wl->cursor.surface, 0, 0, image->width, image->height);
wl_surface_commit(wl->cursor.surface);
}
else
wl_pointer_set_cursor(wl->wl_pointer, wl->cursor.serial, NULL, 0, 0);
wl->cursor.visible = state;
}
const gfx_ctx_driver_t gfx_ctx_wayland = {
gfx_ctx_wl_init,
gfx_ctx_wl_destroy,
gfx_ctx_wl_bind_api,
gfx_ctx_wl_set_swap_interval,
gfx_ctx_wl_set_video_mode,
gfx_ctx_wl_get_video_size,
NULL, /* get_video_output_size */
NULL, /* get_video_output_prev */
NULL, /* get_video_output_next */
gfx_ctx_wl_get_metrics,
NULL,
gfx_ctx_wl_update_title,
gfx_ctx_wl_check_window,
gfx_ctx_wl_set_resize,
gfx_ctx_wl_has_focus,
gfx_ctx_wl_suppress_screensaver,
gfx_ctx_wl_has_windowed,
gfx_ctx_wl_swap_buffers,
gfx_ctx_wl_input_driver,
gfx_ctx_wl_get_proc_address,
NULL,
NULL,
gfx_ctx_wl_show_mouse,
"wayland",
gfx_ctx_wl_get_flags,
gfx_ctx_wl_set_flags,
gfx_ctx_wl_bind_hw_render,
#ifdef HAVE_VULKAN
gfx_ctx_wl_get_context_data,
#else
NULL,
#endif
NULL,
};