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Add support for EGL_EXT_platform_xcb

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This allows to create EGL context without involving Xlib.
This extension was created a year ago and is present in Mesa since 21.0

Change-Id: Id9bcbffe8c46cb00d9cc0a9a425c1706d1b52b28
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
This commit is contained in:
Ilya Fedin 2021-10-05 04:31:47 +04:00
parent 82b86960c0
commit 816c5de460
2 changed files with 10 additions and 1 deletions
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4
src/gui/opengl/platform/egl/qeglstreamconvenience_p.h
View File

@ -149,6 +149,10 @@ typedef EGLBoolean (EGLAPIENTRYP PFNEGLSTREAMCONSUMEROUTPUTEXTPROC) (EGLDisplay
#define EGL_PLATFORM_X11_KHR 0x31D5
#endif
#ifndef EGL_PLATFORM_XCB_KHR
#define EGL_PLATFORM_XCB_KHR 0x31DC
#endif
#ifndef EGL_NV_stream_attrib
typedef EGLStreamKHR (EGLAPIENTRYP PFNEGLCREATESTREAMATTRIBNVPROC) (EGLDisplay dpy, const EGLAttrib *attrib_list);
typedef EGLBoolean (EGLAPIENTRYP PFNEGLSETSTREAMATTRIBNVPROC) (EGLDisplay dpy, EGLStreamKHR stream, EGLenum attribute, EGLAttrib value);

7
src/plugins/platforms/xcb/gl_integrations/xcb_egl/qxcbeglintegration.cpp
View File

@ -67,7 +67,12 @@ bool QXcbEglIntegration::initialize(QXcbConnection *connection)
const char *extensions = eglQueryString(EGL_NO_DISPLAY, EGL_EXTENSIONS);
if (extensions && strstr(extensions, "EGL_EXT_platform_x11")) {
if (extensions && (strstr(extensions, "EGL_EXT_platform_xcb") || strstr(extensions, "EGL_MESA_platform_xcb"))) {
QEGLStreamConvenience streamFuncs;
m_egl_display = streamFuncs.get_platform_display(EGL_PLATFORM_XCB_KHR,
reinterpret_cast<void *>(connection->xcb_connection()),
nullptr);
} else if (extensions && strstr(extensions, "EGL_EXT_platform_x11")) {
QEGLStreamConvenience streamFuncs;
m_egl_display = streamFuncs.get_platform_display(EGL_PLATFORM_X11_KHR,
xlib_display(),