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<base href="https://bugs.freedesktop.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - eglWaitClient() doesn't work for surfaceless contexts"
href="https://bugs.freedesktop.org/show_bug.cgi?id=106377">106377</a>
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<th>Summary</th>
<td>eglWaitClient() doesn't work for surfaceless contexts
</td>
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<th>Product</th>
<td>Mesa
</td>
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<th>Version</th>
<td>18.0
</td>
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<th>Hardware</th>
<td>All
</td>
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<th>OS</th>
<td>All
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>major
</td>
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<th>Priority</th>
<td>medium
</td>
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<th>Component</th>
<td>EGL
</td>
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<th>Assignee</th>
<td>mesa-dev@lists.freedesktop.org
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<th>Reporter</th>
<td>mgorchak@qnx.com
</td>
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<th>QA Contact</th>
<td>mesa-dev@lists.freedesktop.org
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<pre>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);</pre>
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