Otherwise there will be a warning:
"libEGL warning: FIXME: egl/x11 doesn't support front buffer rendering."
Happens with EGL_KHR_surfaceless_context:
eglMakeCurrent(egl_display, EGL_NO_SURFACE, EGL_NO_SURFACE, egl_context)
eglMakeCurrent(egl_display, egl_surface, egl_surface, egl_context)
glFlush() // Here will be a warning
Cc: <mesa-stable@lists.freedesktop.org>
Closes: https://gitlab.freedesktop.org/mesa/mesa/issues/1525
Signed-off-by: Danylo Piliaiev <danylo.piliaiev@globallogic.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3628>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3628>
(cherry picked from commit
36126b6211f1ac2da0aa94411608b2320553dbb6)
"description": "i965: Do not set front_buffer_dirty if there is no front buffer",
"nominated": true,
"nomination_type": 0,
- "resolution": 0,
+ "resolution": 1,
"master_sha": null,
"because_sha": null
},
* that will happen next will probably dirty the front buffer. So
* mark it as dirty here.
*/
- if (_mesa_is_front_buffer_drawing(ctx->DrawBuffer))
+ if (_mesa_is_front_buffer_drawing(ctx->DrawBuffer) &&
+ ctx->DrawBuffer != _mesa_get_incomplete_framebuffer()) {
brw->front_buffer_dirty = true;
+ }
if (brw->is_shared_buffer_bound) {
/* Subsequent rendering will probably dirty the shared buffer. */