https://bugs.freedesktop.org/show_bug.cgi?id=106377
Bug ID: 106377
Summary: eglWaitClient() doesn't work for surfaceless contexts
Product: Mesa
Version: 18.0
Hardware: All
OS: All
Status: NEW
Severity: major
Priority: medium
Component: EGL
Assignee: mesa-dev@lists.freedesktop.org
Reporter: mgorc...@qnx.com
QA Contact: mesa-dev@lists.freedesktop.org
When surfaceless contexts are in use (for example, for FBO rendering),
eglWaitClient return an error EGL_BAD_CURRENT_SURFACE. According to spec it
should do glFinish()-like behavior disregarding if it has bound surface to the
context or not.
In case of using DRI2 backend it happens that in case of surfaceless context
dri2_wait_client() is not called at all and aborted at _eglWaitClientCommon()
function with following check:
/* let bad current context imply bad current surface */
if (_eglGetContextHandle(ctx) == EGL_NO_CONTEXT ||
_eglGetSurfaceHandle(ctx->DrawSurface) == EGL_NO_SURFACE)
RETURN_EGL_ERROR(disp, EGL_BAD_CURRENT_SURFACE, EGL_FALSE);
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