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From eb2b38d24454b1fdd21cb8184a224cb9fa0579d3 Mon Sep 17 00:00:00 2001
From: Georges Basile Stavracas Neto <georges.stavracas@gmail.com>
Date: Fri, 6 Mar 2020 18:53:42 -0300
Subject: [PATCH 11/25] libobs: Add a Wayland platform
Introduce the OBS_NIX_PLATFORM_WAYLAND enum value, and try to detect
it when OBS Studio runs by looking into the platform name.
---
CMakeLists.txt | 2 +
UI/CMakeLists.txt | 5 ++
UI/obs-app.cpp | 17 +++++++
cmake/Modules/FindWayland.cmake | 78 +++++++++++++++++++++++++++++
libobs-opengl/CMakeLists.txt | 2 +-
libobs-opengl/gl-nix.c | 5 ++
libobs/CMakeLists.txt | 15 ++++++
libobs/obs-nix-platform.h | 4 ++
libobs/obs-nix-wayland.c | 88 +++++++++++++++++++++++++++++++++
libobs/obs-nix-wayland.h | 24 +++++++++
libobs/obs-nix.c | 14 ++++++
libobs/obsconfig.h.in | 2 +
12 files changed, 255 insertions(+), 1 deletion(-)
create mode 100644 cmake/Modules/FindWayland.cmake
create mode 100644 libobs/obs-nix-wayland.c
create mode 100644 libobs/obs-nix-wayland.h
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5bdfe21f..7828c65a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -205,6 +205,8 @@ if(APPLE)
list(APPEND CMAKE_INSTALL_RPATH "@loader_path/" "@executable_path/")
elseif(UNIX)
option(USE_XDG "Utilize XDG Base Directory Specification" ON)
+ option(ENABLE_WAYLAND "Build support for Wayland" ON)
+
if(USE_XDG)
add_definitions(-DUSE_XDG)
endif()
diff --git a/UI/CMakeLists.txt b/UI/CMakeLists.txt
index df4d2645..ae689c95 100644
--- a/UI/CMakeLists.txt
+++ b/UI/CMakeLists.txt
@@ -408,6 +408,11 @@ if (APPLE)
endif()
set_target_properties(obs PROPERTIES FOLDER "frontend")
+if (ENABLE_WAYLAND)
+ find_package(Qt5Gui REQUIRED)
+ include_directories(${Qt5Gui_PRIVATE_INCLUDE_DIRS})
+endif()
+
define_graphic_modules(obs)
install_obs_core(obs)
diff --git a/UI/obs-app.cpp b/UI/obs-app.cpp
index 2a8de8d9..ce350f06 100644
--- a/UI/obs-app.cpp
+++ b/UI/obs-app.cpp
@@ -59,6 +59,11 @@
#if !defined(_WIN32) && !defined(__APPLE__)
#include <obs-nix-platform.h>
#include <QX11Info>
+
+#ifdef ENABLE_WAYLAND
+#include <qpa/qplatformnativeinterface.h>
+#endif
+
#endif
#include <iostream>
@@ -1383,6 +1388,18 @@ bool OBSApp::OBSInit()
}
obs_set_nix_platform_display(QX11Info::display());
}
+
+#ifdef ENABLE_WAYLAND
+ if (QApplication::platformName().contains("wayland")) {
+ obs_set_nix_platform(OBS_NIX_PLATFORM_WAYLAND);
+ QPlatformNativeInterface *native =
+ QGuiApplication::platformNativeInterface();
+ obs_set_nix_platform_display(
+ native->nativeResourceForIntegration("display"));
+
+ blog(LOG_INFO, "Platform: Wayland");
+ }
+#endif
#endif
if (!StartupOBS(locale.c_str(), GetProfilerNameStore()))
diff --git a/cmake/Modules/FindWayland.cmake b/cmake/Modules/FindWayland.cmake
new file mode 100644
index 00000000..377f0545
--- /dev/null
+++ b/cmake/Modules/FindWayland.cmake
@@ -0,0 +1,78 @@
+# Try to find Wayland on a Unix system
+#
+# This will define:
+#
+# WAYLAND_FOUND - True if Wayland is found
+# WAYLAND_LIBRARIES - Link these to use Wayland
+# WAYLAND_INCLUDE_DIRS - Include directory for Wayland
+# WAYLAND_DEFINITIONS - Compiler flags for using Wayland
+#
+# In addition the following more fine grained variables will be defined:
+#
+# Wayland_Client_FOUND WAYLAND_CLIENT_INCLUDE_DIRS WAYLAND_CLIENT_LIBRARIES
+# Wayland_Server_FOUND WAYLAND_SERVER_INCLUDE_DIRS WAYLAND_SERVER_LIBRARIES
+# Wayland_EGL_FOUND WAYLAND_EGL_INCLUDE_DIRS WAYLAND_EGL_LIBRARIES
+# Wayland_Cursor_FOUND WAYLAND_CURSOR_INCLUDE_DIRS WAYLAND_CURSOR_LIBRARIES
+#
+# Copyright (c) 2013 Martin Gräßlin <mgraesslin@kde.org>
+# 2020 Georges Basile Stavracas Neto <georges.stavracas@gmail.com>
+#
+# Redistribution and use is allowed according to the terms of the BSD license.
+# For details see the accompanying COPYING-CMAKE-SCRIPTS file.
+
+IF (NOT WIN32)
+
+ # Use pkg-config to get the directories and then use these values
+ # in the find_path() and find_library() calls
+ find_package(PkgConfig)
+ PKG_CHECK_MODULES(PKG_WAYLAND QUIET wayland-client wayland-server wayland-egl wayland-cursor)
+
+ set(WAYLAND_DEFINITIONS ${PKG_WAYLAND_CFLAGS})
+
+ find_path(WAYLAND_CLIENT_INCLUDE_DIRS NAMES wayland-client.h HINTS ${PKG_WAYLAND_INCLUDE_DIRS})
+ find_library(WAYLAND_CLIENT_LIBRARIES NAMES wayland-client HINTS ${PKG_WAYLAND_LIBRARY_DIRS})
+ if(WAYLAND_CLIENT_INCLUDE_DIRS AND WAYLAND_CLIENT_LIBRARIES)
+ set(Wayland_Client_FOUND TRUE)
+ else()
+ set(Wayland_Client_FOUND FALSE)
+ endif()
+ mark_as_advanced(WAYLAND_CLIENT_INCLUDE_DIRS WAYLAND_CLIENT_LIBRARIES)
+
+ find_path(WAYLAND_CURSOR_INCLUDE_DIRS NAMES wayland-cursor.h HINTS ${PKG_WAYLAND_INCLUDE_DIRS})
+ find_library(WAYLAND_CURSOR_LIBRARIES NAMES wayland-cursor HINTS ${PKG_WAYLAND_LIBRARY_DIRS})
+ if(WAYLAND_CURSOR_INCLUDE_DIRS AND WAYLAND_CURSOR_LIBRARIES)
+ set(Wayland_Cursor_FOUND TRUE)
+ else()
+ set(Wayland_Cursor_FOUND FALSE)
+ endif()
+ mark_as_advanced(WAYLAND_CURSOR_INCLUDE_DIRS WAYLAND_CURSOR_LIBRARIES)
+
+ find_path(WAYLAND_EGL_INCLUDE_DIRS NAMES wayland-egl.h HINTS ${PKG_WAYLAND_INCLUDE_DIRS})
+ find_library(WAYLAND_EGL_LIBRARIES NAMES wayland-egl HINTS ${PKG_WAYLAND_LIBRARY_DIRS})
+ if(WAYLAND_EGL_INCLUDE_DIRS AND WAYLAND_EGL_LIBRARIES)
+ set(Wayland_EGL_FOUND TRUE)
+ else()
+ set(Wayland_EGL_FOUND FALSE)
+ endif()
+ mark_as_advanced(WAYLAND_EGL_INCLUDE_DIRS WAYLAND_EGL_LIBRARIES)
+
+ find_path(WAYLAND_SERVER_INCLUDE_DIRS NAMES wayland-server.h HINTS ${PKG_WAYLAND_INCLUDE_DIRS})
+ find_library(WAYLAND_SERVER_LIBRARIES NAMES wayland-server HINTS ${PKG_WAYLAND_LIBRARY_DIRS})
+ if(WAYLAND_SERVER_INCLUDE_DIRS AND WAYLAND_SERVER_LIBRARIES)
+ set(Wayland_Server_FOUND TRUE)
+ else()
+ set(Wayland_Server_FOUND FALSE)
+ endif()
+ mark_as_advanced(WAYLAND_SERVER_INCLUDE_DIRS WAYLAND_SERVER_LIBRARIES)
+
+ set(WAYLAND_INCLUDE_DIRS ${WAYLAND_CLIENT_INCLUDE_DIRS} ${WAYLAND_SERVER_INCLUDE_DIRS} ${WAYLAND_EGL_INCLUDE_DIRS} ${WAYLAND_CURSOR_INCLUDE_DIRS})
+ set(WAYLAND_LIBRARIES ${WAYLAND_CLIENT_LIBRARIES} ${WAYLAND_SERVER_LIBRARIES} ${WAYLAND_EGL_LIBRARIES} ${WAYLAND_CURSOR_LIBRARIES})
+ mark_as_advanced(WAYLAND_INCLUDE_DIRS WAYLAND_LIBRARIES)
+
+ list(REMOVE_DUPLICATES WAYLAND_INCLUDE_DIRS)
+
+ include(FindPackageHandleStandardArgs)
+
+ find_package_handle_standard_args(Wayland REQUIRED_VARS WAYLAND_LIBRARIES WAYLAND_INCLUDE_DIRS HANDLE_COMPONENTS)
+
+ENDIF ()
diff --git a/libobs-opengl/CMakeLists.txt b/libobs-opengl/CMakeLists.txt
index 973c5da3..08e06f0d 100644
--- a/libobs-opengl/CMakeLists.txt
+++ b/libobs-opengl/CMakeLists.txt
@@ -32,7 +32,7 @@ elseif(APPLE)
${COCOA}
${IOSURF}
${OPENGL_gl_LIBRARY})
-else() #This needs to change to be more specific to get ready for Wayland
+else()
find_package(XCB COMPONENTS XCB REQUIRED)
find_package(X11_XCB REQUIRED)
diff --git a/libobs-opengl/gl-nix.c b/libobs-opengl/gl-nix.c
index 9ed3d198..581e16a4 100644
--- a/libobs-opengl/gl-nix.c
+++ b/libobs-opengl/gl-nix.c
@@ -32,6 +32,11 @@ static void init_winsys(void)
case OBS_NIX_PLATFORM_X11_EGL:
gl_vtable = gl_x11_egl_get_winsys_vtable();
break;
+#ifdef ENABLE_WAYLAND
+ case OBS_NIX_PLATFORM_WAYLAND:
+ blog(LOG_ERROR, "EGL/Wayland not implemented yet");
+ break;
+#endif
}
assert(gl_vtable != NULL);
diff --git a/libobs/CMakeLists.txt b/libobs/CMakeLists.txt
index 7a786350..860ad1c8 100644
--- a/libobs/CMakeLists.txt
+++ b/libobs/CMakeLists.txt
@@ -190,6 +190,21 @@ elseif(UNIX)
set(libobs_PLATFORM_HEADERS
obs-nix-platform.h)
+ if(ENABLE_WAYLAND)
+ find_package(Wayland COMPONENTS Client REQUIRED)
+
+ set(libobs_PLATFORM_SOURCES ${libobs_PLATFORM_SOURCES}
+ obs-nix-wayland.c)
+
+ include_directories(
+ ${WAYLAND_CLIENT_INCLUDE_DIR})
+ add_definitions(
+ ${WAYLAND_DEFINITIONS})
+ set(libobs_PLATFORM_DEPS
+ ${libobs_PLATFORM_DEPS}
+ ${WAYLAND_CLIENT_LIBRARIES})
+ endif()
+
if(NEEDS_SIMDE)
set(libobs_PLATFORM_HEADERS
${libobs_PLATFORM_HEADERS}
diff --git a/libobs/obs-nix-platform.h b/libobs/obs-nix-platform.h
index 4cf9d8cd..cef700d7 100644
--- a/libobs/obs-nix-platform.h
+++ b/libobs/obs-nix-platform.h
@@ -26,6 +26,10 @@ extern "C" {
enum obs_nix_platform_type {
OBS_NIX_PLATFORM_X11_GLX,
OBS_NIX_PLATFORM_X11_EGL,
+#ifdef ENABLE_WAYLAND
+ OBS_NIX_PLATFORM_WAYLAND,
+#endif
+
};
/**
diff --git a/libobs/obs-nix-wayland.c b/libobs/obs-nix-wayland.c
new file mode 100644
index 00000000..b242017f
--- /dev/null
+++ b/libobs/obs-nix-wayland.c
@@ -0,0 +1,88 @@
+/******************************************************************************
+ Copyright (C) 2019 by Jason Francis <cycl0ps@tuta.io>
+
+ This program 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 Foundation, either version 2 of the License, or
+ (at your option) any later version.
+
+ This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
+******************************************************************************/
+
+#include "obs-internal.h"
+#include "obs-nix-platform.h"
+#include "obs-nix-wayland.h"
+
+#include <wayland-client.h>
+
+void obs_nix_wayland_log_info(void)
+{
+ struct wl_display *display = obs_get_nix_platform_display();
+ if (display == NULL) {
+ blog(LOG_INFO, "Unable to connect to Wayland server");
+ return;
+ }
+ //TODO: query some information about the wayland server if possible
+ blog(LOG_INFO, "Connected to Wayland server");
+}
+
+static bool
+obs_nix_wayland_hotkeys_platform_init(struct obs_core_hotkeys *hotkeys)
+{
+ UNUSED_PARAMETER(hotkeys);
+ return true;
+}
+
+static void
+obs_nix_wayland_hotkeys_platform_free(struct obs_core_hotkeys *hotkeys)
+{
+ UNUSED_PARAMETER(hotkeys);
+}
+
+static bool
+obs_nix_wayland_hotkeys_platform_is_pressed(obs_hotkeys_platform_t *context,
+ obs_key_t key)
+{
+ UNUSED_PARAMETER(context);
+ UNUSED_PARAMETER(key);
+ return false;
+}
+
+static void obs_nix_wayland_key_to_str(obs_key_t key, struct dstr *dstr)
+{
+ UNUSED_PARAMETER(key);
+ UNUSED_PARAMETER(dstr);
+}
+
+static obs_key_t obs_nix_wayland_key_from_virtual_key(int sym)
+{
+ UNUSED_PARAMETER(sym);
+ return OBS_KEY_NONE;
+}
+
+static int obs_nix_wayland_key_to_virtual_key(obs_key_t key)
+{
+ UNUSED_PARAMETER(key);
+ return 0;
+}
+
+static const struct obs_nix_hotkeys_vtable wayland_hotkeys_vtable = {
+ .init = obs_nix_wayland_hotkeys_platform_init,
+ .free = obs_nix_wayland_hotkeys_platform_free,
+ .is_pressed = obs_nix_wayland_hotkeys_platform_is_pressed,
+ .key_to_str = obs_nix_wayland_key_to_str,
+ .key_from_virtual_key = obs_nix_wayland_key_from_virtual_key,
+ .key_to_virtual_key = obs_nix_wayland_key_to_virtual_key,
+
+};
+
+const struct obs_nix_hotkeys_vtable *obs_nix_wayland_get_hotkeys_vtable(void)
+{
+ return &wayland_hotkeys_vtable;
+}
diff --git a/libobs/obs-nix-wayland.h b/libobs/obs-nix-wayland.h
new file mode 100644
index 00000000..d44720c5
--- /dev/null
+++ b/libobs/obs-nix-wayland.h
@@ -0,0 +1,24 @@
+/******************************************************************************
+ Copyright (C) 2019 by Jason Francis <cycl0ps@tuta.io>
+
+ This program 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 Foundation, either version 2 of the License, or
+ (at your option) any later version.
+
+ This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
+******************************************************************************/
+
+#pragma once
+
+#include "obs-nix.h"
+
+void obs_nix_wayland_log_info(void);
+
+const struct obs_nix_hotkeys_vtable *obs_nix_wayland_get_hotkeys_vtable(void);
diff --git a/libobs/obs-nix.c b/libobs/obs-nix.c
index 9c52279a..ec7f8e25 100644
--- a/libobs/obs-nix.c
+++ b/libobs/obs-nix.c
@@ -20,6 +20,11 @@
#include "obs-nix.h"
#include "obs-nix-platform.h"
#include "obs-nix-x11.h"
+
+#ifdef ENABLE_WAYLAND
+#include "obs-nix-wayland.h"
+#endif
+
#if defined(__FreeBSD__)
#define _GNU_SOURCE
#endif
@@ -295,6 +300,10 @@ void log_system_info(void)
case OBS_NIX_PLATFORM_X11_EGL:
obs_nix_x11_log_info();
break;
+#ifdef ENABLE_WAYLAND
+ case OBS_NIX_PLATFORM_WAYLAND:
+ break;
+#endif
}
}
@@ -305,6 +314,11 @@ bool obs_hotkeys_platform_init(struct obs_core_hotkeys *hotkeys)
case OBS_NIX_PLATFORM_X11_EGL:
hotkeys_vtable = obs_nix_x11_get_hotkeys_vtable();
break;
+#ifdef ENABLE_WAYLAND
+ case OBS_NIX_PLATFORM_WAYLAND:
+ hotkeys_vtable = obs_nix_wayland_get_hotkeys_vtable();
+ break;
+#endif
}
return hotkeys_vtable->init(hotkeys);
diff --git a/libobs/obsconfig.h.in b/libobs/obsconfig.h.in
index 1a09ebea..82d2e3af 100644
--- a/libobs/obsconfig.h.in
+++ b/libobs/obsconfig.h.in
@@ -24,6 +24,8 @@
#define LIBOBS_IMAGEMAGICK_DIR_STYLE_7GE 7
#define LIBOBS_IMAGEMAGICK_DIR_STYLE @LIBOBS_IMAGEMAGICK_DIR_STYLE@
+#cmakedefine ENABLE_WAYLAND
+
/* NOTE: Release candidate version numbers internally are always the previous
* main release number! For example, if the current public release is 21.0 and
* the build is 22.0 release candidate 1, internally the build number (defined
--
2.28.0
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