Add X11 support for the DRIVE CX

The spec, added in 5.7.0, simply defined WIN_INTERFACE_CUSTOM, leading
to the generic, non-X11 typedefs for the EGL native types. This is
fine for the typical embedded use, but is not what is wanted when
targeting xcb, and leads to disabling EGL-on-X support.

Therefore, move the define into a comon header and let the individual
libs decide by defining or not defining QT_EGL_NO_X11. This sets both
MESA_EGL_NO_X11_HEADERS and WIN_INTERFACE_CUSTOM in qt_egl_p.h.

This way Qt builds supporting all three of eglfs (DRM+EGLDevice),
wayland, and xcb (EGL) can be generated out of the box.

[ChangeLog][Platform Specific Changes][Linux] xcb with EGL and OpenGL
ES, as well as eglfs with the eglfs_x11 backend, are now supported on
DRIVE CX boards when using the linux-drive-cx-g++ device spec.

Done-with: Louai Al-Khanji <louai.al-khanji@qt.io>
Task-number: QTBUG-55140
Change-Id: I6f186d16612e170995e3bca1214bcabad59af08e
Reviewed-by: Andy Nichols <andy.nichols@qt.io>

7 files changed, 14 insertions, 13 deletions

diff --git a/src/plugins/platforms/eglfs/deviceintegration/eglfs_brcm/eglfs_brcm.pro b/src/plugins/platforms/eglfs/deviceintegration/eglfs_brcm/eglfs_brcm.pro
index e2ebf9f7ee..2b710ac24c 100644
--- a/src/plugins/platforms/eglfs/deviceintegration/eglfs_brcm/eglfs_brcm.pro
+++ b/src/plugins/platforms/eglfs/deviceintegration/eglfs_brcm/eglfs_brcm.pro
@@ -8,8 +8,8 @@ CONFIG += egl
 LIBS += -lbcm_host
 QMAKE_LFLAGS += $$QMAKE_LFLAGS_NOUNDEF
 
-# Avoid X11 header collision
-DEFINES += MESA_EGL_NO_X11_HEADERS
+# Avoid X11 header collision, use generic EGL native types
+DEFINES += QT_EGL_NO_X11
 
 SOURCES += $$PWD/qeglfsbrcmmain.cpp \
            $$PWD/qeglfsbrcmintegration.cpp
diff --git a/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms/eglfs_kms.pro b/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms/eglfs_kms.pro
index 979bfe3ea9..b1791240ab 100644
--- a/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms/eglfs_kms.pro
+++ b/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms/eglfs_kms.pro
@@ -8,8 +8,8 @@ QT += core-private gui-private platformsupport-private eglfs_device_lib-private
 
 INCLUDEPATH += $$PWD/../.. $$PWD/../eglfs_kms_support
 
-# Avoid X11 header collision
-DEFINES += MESA_EGL_NO_X11_HEADERS
+# Avoid X11 header collision, use generic EGL native types
+DEFINES += QT_EGL_NO_X11
 
 CONFIG += link_pkgconfig
 !contains(QT_CONFIG, no-pkg-config) {
diff --git a/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms_egldevice/eglfs_kms_egldevice.pro b/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms_egldevice/eglfs_kms_egldevice.pro
index 3a380b7525..e2263f6cbf 100644
--- a/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms_egldevice/eglfs_kms_egldevice.pro
+++ b/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms_egldevice/eglfs_kms_egldevice.pro
@@ -4,7 +4,8 @@ QT += core-private gui-private platformsupport-private eglfs_device_lib-private
 
 INCLUDEPATH += $$PWD/../.. $$PWD/../eglfs_kms_support
 
-DEFINES += MESA_EGL_NO_X11_HEADERS
+# Avoid X11 header collision, use generic EGL native types
+DEFINES += QT_EGL_NO_X11
 
 CONFIG += link_pkgconfig
 !contains(QT_CONFIG, no-pkg-config) {
diff --git a/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms_support/eglfs_kms_support.pro b/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms_support/eglfs_kms_support.pro
index 6355fe6abd..32f15f33fb 100644
--- a/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms_support/eglfs_kms_support.pro
+++ b/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms_support/eglfs_kms_support.pro
@@ -6,8 +6,8 @@ QT += core-private gui-private platformsupport-private eglfs_device_lib-private
 
 INCLUDEPATH += $$PWD/../..
 
-# Avoid X11 header collision
-DEFINES += MESA_EGL_NO_X11_HEADERS
+# Avoid X11 header collision, use generic EGL native types
+DEFINES += QT_EGL_NO_X11
 
 CONFIG += link_pkgconfig
 !contains(QT_CONFIG, no-pkg-config) {
diff --git a/src/plugins/platforms/eglfs/deviceintegration/eglfs_mali/eglfs_mali.pro b/src/plugins/platforms/eglfs/deviceintegration/eglfs_mali/eglfs_mali.pro
index 7fc4568ae3..3e486bd1bd 100644
--- a/src/plugins/platforms/eglfs/deviceintegration/eglfs_mali/eglfs_mali.pro
+++ b/src/plugins/platforms/eglfs/deviceintegration/eglfs_mali/eglfs_mali.pro
@@ -2,8 +2,8 @@ TARGET = qeglfs-mali-integration
 
 QT += core-private gui-private platformsupport-private eglfs_device_lib-private
 
-# Avoid X11 header collision
-DEFINES += MESA_EGL_NO_X11_HEADERS
+# Avoid X11 header collision, use generic EGL native types
+DEFINES += QT_EGL_NO_X11
 
 INCLUDEPATH += $$PWD/../..
 CONFIG += egl
diff --git a/src/plugins/platforms/eglfs/deviceintegration/eglfs_x11/eglfs_x11.pro b/src/plugins/platforms/eglfs/deviceintegration/eglfs_x11/eglfs_x11.pro
index 83f0c74910..1948d73750 100644
--- a/src/plugins/platforms/eglfs/deviceintegration/eglfs_x11/eglfs_x11.pro
+++ b/src/plugins/platforms/eglfs/deviceintegration/eglfs_x11/eglfs_x11.pro
@@ -2,8 +2,8 @@ TARGET = qeglfs-x11-integration
 
 QT += core-private gui-private platformsupport-private eglfs_device_lib-private
 
-# Avoid X11 header collision
-DEFINES += MESA_EGL_NO_X11_HEADERS
+# Avoid X11 header collision, use generic EGL native types
+DEFINES += QT_EGL_NO_X11
 
 INCLUDEPATH += $$PWD/../..
 
diff --git a/src/plugins/platforms/eglfs/deviceintegration/eglfs_x11/qeglfsx11integration.cpp b/src/plugins/platforms/eglfs/deviceintegration/eglfs_x11/qeglfsx11integration.cpp
index 74a687b382..f9924fe5ce 100644
--- a/src/plugins/platforms/eglfs/deviceintegration/eglfs_x11/qeglfsx11integration.cpp
+++ b/src/plugins/platforms/eglfs/deviceintegration/eglfs_x11/qeglfsx11integration.cpp
@@ -281,12 +281,12 @@ EGLNativeWindowType QEglFSX11Integration::createNativeWindow(QPlatformWindow *pl
 
     xcb_flush(m_connection);
 
-    return m_window;
+    return qt_egl_cast<EGLNativeWindowType>(m_window);
 }
 
 void QEglFSX11Integration::destroyNativeWindow(EGLNativeWindowType window)
 {
-    xcb_destroy_window(m_connection, window);
+    xcb_destroy_window(m_connection, qt_egl_cast<xcb_window_t>(window));
 }
 
 bool QEglFSX11Integration::hasCapability(QPlatformIntegration::Capability cap) const