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Wayland: Make libwayland-client dynamically loaded

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The insight to use wayland.xml to resolve the difficult-to-redirect
interface symbols was gleaned from SDL.

Instead of compiling the code output of wayland-scanner separately it is
made part of the wl_init compilation unit.  This lets us do things like
transparently rename our copies of Wayland globals.

The OS version of wayland-client-protocol.h is no longer used by GLFW,
but it is presumably ABI compatible with the output of wayland-scanner.

Closes #1174.
Closes #1338.
Related to #1655.
This commit is contained in:
Camilla Löwy 2021-07-13 18:12:43 +02:00
parent 56092814f3
commit a7ea3a0ef9
7 changed files with 152 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
CMakeLists.txt
View File

@ -204,7 +204,6 @@ if (_GLFW_WAYLAND)
list(APPEND glfw_PKG_DEPS "wayland-client")
list(APPEND glfw_INCLUDE_DIRS "${Wayland_INCLUDE_DIRS}")
list(APPEND glfw_LIBRARIES "${Wayland_LINK_LIBRARIES}")
include(CheckIncludeFiles)
include(CheckFunctionExists)

1
README.md
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@ -225,6 +225,7 @@ information on what to include when reporting a bug.
reported (#1112,#1415,#1472,#1616)
- [X11] Bugfix: Some window attributes were not applied on leaving fullscreen
(#1863)
- [Wayland] Added dynamic loading of all Wayland libraries
- [Wayland] Removed support for `wl_shell` (#1443)
- [Wayland] Bugfix: The `GLFW_HAND_CURSOR` shape used the wrong image (#1432)
- [Wayland] Bugfix: `CLOCK_MONOTONIC` was not correctly enabled

10
src/CMakeLists.txt
View File

@ -48,6 +48,7 @@ if (_GLFW_WAYLAND)
find_program(WAYLAND_SCANNER_EXECUTABLE NAMES wayland-scanner)
pkg_check_modules(WAYLAND_PROTOCOLS REQUIRED wayland-protocols>=1.15)
pkg_get_variable(WAYLAND_PROTOCOLS_BASE wayland-protocols pkgdatadir)
pkg_get_variable(WAYLAND_CLIENT_PKGDATADIR wayland-client pkgdatadir)
macro(wayland_generate protocol_file output_file)
add_custom_command(OUTPUT "${output_file}.h"
@ -55,14 +56,17 @@ if (_GLFW_WAYLAND)
DEPENDS "${protocol_file}"
VERBATIM)
add_custom_command(OUTPUT "${output_file}.c"
COMMAND "${WAYLAND_SCANNER_EXECUTABLE}" private-code "${protocol_file}" "${output_file}.c"
add_custom_command(OUTPUT "${output_file}-code.h"
COMMAND "${WAYLAND_SCANNER_EXECUTABLE}" private-code "${protocol_file}" "${output_file}-code.h"
DEPENDS "${protocol_file}"
VERBATIM)
target_sources(glfw PRIVATE "${output_file}.h" "${output_file}.c")
target_sources(glfw PRIVATE "${output_file}.h" "${output_file}-code.h")
endmacro()
wayland_generate(
"${WAYLAND_CLIENT_PKGDATADIR}/wayland.xml"
"${GLFW_BINARY_DIR}/src/wayland-client-protocol")
wayland_generate(
"${WAYLAND_PROTOCOLS_BASE}/stable/xdg-shell/xdg-shell.xml"
"${GLFW_BINARY_DIR}/src/wayland-xdg-shell-client-protocol")

80
src/wl_init.c
View File

@ -41,7 +41,22 @@
#include <sys/timerfd.h>
#include <unistd.h>
#include <time.h>
#include <wayland-client.h>
#include "wayland-client-protocol.h"
#include "wayland-xdg-shell-client-protocol.h"
#include "wayland-xdg-decoration-client-protocol.h"
#include "wayland-viewporter-client-protocol.h"
#include "wayland-relative-pointer-unstable-v1-client-protocol.h"
#include "wayland-pointer-constraints-unstable-v1-client-protocol.h"
#include "wayland-idle-inhibit-unstable-v1-client-protocol.h"
#include "wayland-client-protocol-code.h"
#include "wayland-xdg-shell-client-protocol-code.h"
#include "wayland-xdg-decoration-client-protocol-code.h"
#include "wayland-viewporter-client-protocol-code.h"
#include "wayland-relative-pointer-unstable-v1-client-protocol-code.h"
#include "wayland-pointer-constraints-unstable-v1-client-protocol-code.h"
#include "wayland-idle-inhibit-unstable-v1-client-protocol-code.h"
static inline int min(int n1, int n2)
@ -1039,6 +1054,69 @@ int _glfwPlatformInit(void)
long cursorSizeLong;
int cursorSize;
_glfw.wl.client.handle = _glfw_dlopen("libwayland-client.so.0");
if (!_glfw.wl.client.handle)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Wayland: Failed to open libwayland-client");
return GLFW_FALSE;
}
_glfw.wl.client.display_flush = (PFN_wl_display_flush)
_glfw_dlsym(_glfw.wl.client.handle, "wl_display_flush");
_glfw.wl.client.display_cancel_read = (PFN_wl_display_cancel_read)
_glfw_dlsym(_glfw.wl.client.handle, "wl_display_cancel_read");
_glfw.wl.client.display_dispatch_pending = (PFN_wl_display_dispatch_pending)
_glfw_dlsym(_glfw.wl.client.handle, "wl_display_dispatch_pending");
_glfw.wl.client.display_read_events = (PFN_wl_display_read_events)
_glfw_dlsym(_glfw.wl.client.handle, "wl_display_read_events");
_glfw.wl.client.display_connect = (PFN_wl_display_connect)
_glfw_dlsym(_glfw.wl.client.handle, "wl_display_connect");
_glfw.wl.client.display_disconnect = (PFN_wl_display_disconnect)
_glfw_dlsym(_glfw.wl.client.handle, "wl_display_disconnect");
_glfw.wl.client.display_roundtrip = (PFN_wl_display_roundtrip)
_glfw_dlsym(_glfw.wl.client.handle, "wl_display_roundtrip");
_glfw.wl.client.display_get_fd = (PFN_wl_display_get_fd)
_glfw_dlsym(_glfw.wl.client.handle, "wl_display_get_fd");
_glfw.wl.client.display_prepare_read = (PFN_wl_display_prepare_read)
_glfw_dlsym(_glfw.wl.client.handle, "wl_display_prepare_read");
_glfw.wl.client.proxy_marshal = (PFN_wl_proxy_marshal)
_glfw_dlsym(_glfw.wl.client.handle, "wl_proxy_marshal");
_glfw.wl.client.proxy_add_listener = (PFN_wl_proxy_add_listener)
_glfw_dlsym(_glfw.wl.client.handle, "wl_proxy_add_listener");
_glfw.wl.client.proxy_destroy = (PFN_wl_proxy_destroy)
_glfw_dlsym(_glfw.wl.client.handle, "wl_proxy_destroy");
_glfw.wl.client.proxy_marshal_constructor = (PFN_wl_proxy_marshal_constructor)
_glfw_dlsym(_glfw.wl.client.handle, "wl_proxy_marshal_constructor");
_glfw.wl.client.proxy_marshal_constructor_versioned = (PFN_wl_proxy_marshal_constructor_versioned)
_glfw_dlsym(_glfw.wl.client.handle, "wl_proxy_marshal_constructor_versioned");
_glfw.wl.client.proxy_get_user_data = (PFN_wl_proxy_get_user_data)
_glfw_dlsym(_glfw.wl.client.handle, "wl_proxy_get_user_data");
_glfw.wl.client.proxy_set_user_data = (PFN_wl_proxy_set_user_data)
_glfw_dlsym(_glfw.wl.client.handle, "wl_proxy_set_user_data");
if (!_glfw.wl.client.display_flush ||
!_glfw.wl.client.display_cancel_read ||
!_glfw.wl.client.display_dispatch_pending ||
!_glfw.wl.client.display_read_events ||
!_glfw.wl.client.display_connect ||
!_glfw.wl.client.display_disconnect ||
!_glfw.wl.client.display_roundtrip ||
!_glfw.wl.client.display_get_fd ||
!_glfw.wl.client.display_prepare_read ||
!_glfw.wl.client.proxy_marshal ||
!_glfw.wl.client.proxy_add_listener ||
!_glfw.wl.client.proxy_destroy ||
!_glfw.wl.client.proxy_marshal_constructor ||
!_glfw.wl.client.proxy_marshal_constructor_versioned ||
!_glfw.wl.client.proxy_get_user_data ||
!_glfw.wl.client.proxy_set_user_data)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Wayland: Failed to load libwayland-client entry point");
return GLFW_FALSE;
}
_glfw.wl.cursor.handle = _glfw_dlopen("libwayland-cursor.so.0");
if (!_glfw.wl.cursor.handle)
{

2
src/wl_monitor.c
View File

@ -34,6 +34,8 @@
#include <errno.h>
#include <math.h>
#include "wayland-client-protocol.h"
static void outputHandleGeometry(void* data,
struct wl_output* output,

62
src/wl_platform.h
View File

@ -24,7 +24,7 @@
//
//========================================================================
#include <wayland-client.h>
#include <wayland-client-core.h>
#include <xkbcommon/xkbcommon.h>
#ifdef HAVE_XKBCOMMON_COMPOSE_H
#include <xkbcommon/xkbcommon-compose.h>
@ -54,12 +54,40 @@ typedef VkBool32 (APIENTRY *PFN_vkGetPhysicalDeviceWaylandPresentationSupportKHR
#endif
#include "xkb_unicode.h"
#include "wayland-xdg-shell-client-protocol.h"
#include "wayland-xdg-decoration-client-protocol.h"
#include "wayland-viewporter-client-protocol.h"
#include "wayland-relative-pointer-unstable-v1-client-protocol.h"
#include "wayland-pointer-constraints-unstable-v1-client-protocol.h"
#include "wayland-idle-inhibit-unstable-v1-client-protocol.h"
typedef int (* PFN_wl_display_flush)(struct wl_display *display);
typedef void (* PFN_wl_display_cancel_read)(struct wl_display *display);
typedef int (* PFN_wl_display_dispatch_pending)(struct wl_display *display);
typedef int (* PFN_wl_display_read_events)(struct wl_display *display);
typedef struct wl_display* (* PFN_wl_display_connect)(const char*);
typedef void (* PFN_wl_display_disconnect)(struct wl_display*);
typedef int (* PFN_wl_display_roundtrip)(struct wl_display*);
typedef int (* PFN_wl_display_get_fd)(struct wl_display*);
typedef int (* PFN_wl_display_prepare_read)(struct wl_display*);
typedef void (* PFN_wl_proxy_marshal)(struct wl_proxy*,uint32_t,...);
typedef int (* PFN_wl_proxy_add_listener)(struct wl_proxy*,void(**)(void),void*);
typedef void (* PFN_wl_proxy_destroy)(struct wl_proxy*);
typedef struct wl_proxy* (* PFN_wl_proxy_marshal_constructor)(struct wl_proxy*,uint32_t,const struct wl_interface*,...);
typedef struct wl_proxy* (* PFN_wl_proxy_marshal_constructor_versioned)(struct wl_proxy*,uint32_t,const struct wl_interface*,uint32_t,...);
typedef void* (* PFN_wl_proxy_get_user_data)(struct wl_proxy*);
typedef void (* PFN_wl_proxy_set_user_data)(struct wl_proxy*,void*);
#define wl_display_flush _glfw.wl.client.display_flush
#define wl_display_cancel_read _glfw.wl.client.display_cancel_read
#define wl_display_dispatch_pending _glfw.wl.client.display_dispatch_pending
#define wl_display_read_events _glfw.wl.client.display_read_events
#define wl_display_connect _glfw.wl.client.display_connect
#define wl_display_disconnect _glfw.wl.client.display_disconnect
#define wl_display_roundtrip _glfw.wl.client.display_roundtrip
#define wl_display_get_fd _glfw.wl.client.display_get_fd
#define wl_display_prepare_read _glfw.wl.client.display_prepare_read
#define wl_proxy_marshal _glfw.wl.client.proxy_marshal
#define wl_proxy_add_listener _glfw.wl.client.proxy_add_listener
#define wl_proxy_destroy _glfw.wl.client.proxy_destroy
#define wl_proxy_marshal_constructor _glfw.wl.client.proxy_marshal_constructor
#define wl_proxy_marshal_constructor_versioned _glfw.wl.client.proxy_marshal_constructor_versioned
#define wl_proxy_get_user_data _glfw.wl.client.proxy_get_user_data
#define wl_proxy_set_user_data _glfw.wl.client.proxy_set_user_data
struct wl_shm;
#define _glfw_dlopen(name) dlopen(name, RTLD_LAZY | RTLD_LOCAL)
#define _glfw_dlclose(handle) dlclose(handle)
@ -302,6 +330,26 @@ typedef struct _GLFWlibraryWayland
_GLFWwindow* pointerFocus;
_GLFWwindow* keyboardFocus;
struct {
void* handle;
PFN_wl_display_flush display_flush;
PFN_wl_display_cancel_read display_cancel_read;
PFN_wl_display_dispatch_pending display_dispatch_pending;
PFN_wl_display_read_events display_read_events;
PFN_wl_display_connect display_connect;
PFN_wl_display_disconnect display_disconnect;
PFN_wl_display_roundtrip display_roundtrip;
PFN_wl_display_get_fd display_get_fd;
PFN_wl_display_prepare_read display_prepare_read;
PFN_wl_proxy_marshal proxy_marshal;
PFN_wl_proxy_add_listener proxy_add_listener;
PFN_wl_proxy_destroy proxy_destroy;
PFN_wl_proxy_marshal_constructor proxy_marshal_constructor;
PFN_wl_proxy_marshal_constructor_versioned proxy_marshal_constructor_versioned;
PFN_wl_proxy_get_user_data proxy_get_user_data;
PFN_wl_proxy_set_user_data proxy_set_user_data;
} client;
struct {
void* handle;

8
src/wl_window.c
View File

@ -40,6 +40,14 @@
#include <sys/timerfd.h>
#include <poll.h>
#include "wayland-client-protocol.h"
#include "wayland-xdg-shell-client-protocol.h"
#include "wayland-xdg-decoration-client-protocol.h"
#include "wayland-viewporter-client-protocol.h"
#include "wayland-relative-pointer-unstable-v1-client-protocol.h"
#include "wayland-pointer-constraints-unstable-v1-client-protocol.h"
#include "wayland-idle-inhibit-unstable-v1-client-protocol.h"
static int createTmpfileCloexec(char* tmpname)
{