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<th>Priority</th>
<td>medium
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<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Introduce y-flip query in eglQueryWaylandBufferWL"
href="https://bugs.freedesktop.org/show_bug.cgi?id=68041">68041</a>
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<th>Assignee</th>
<td>wayland-bugs@lists.freedesktop.org
</td>
</tr>
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<th>Summary</th>
<td>Introduce y-flip query in eglQueryWaylandBufferWL
</td>
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<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
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<th>OS</th>
<td>Linux (All)
</td>
</tr>
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<th>Reporter</th>
<td>sheffmail@mail.ru
</td>
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<th>Hardware</th>
<td>Other
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Version</th>
<td>1.0.x
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<th>Component</th>
<td>wayland
</td>
</tr>
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<th>Product</th>
<td>Wayland
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<pre>There should be a way to tell the compositor if wl_buffer's contents are
y-flipped or not. X11 and EGL already have similar functionality:
GLX_Y_INVERTED_EXT on X11
EGL_Y_INVERTED_NOK on EGL - Nokia's extension.
Both are not suitable for wayland since wayland is obviously not related to X11
and EGL_Y_INVERTED_NOK is a part of EGL_NOK_texture_from_pixmap extension,
which implies pixmap support (wayland doesn't support pixmaps).
Thus, eglQueryWaylandBufferWL should be extended with a new attribute,
something like EGL_WAYLAND_Y_INVERTED_WL, OpenGL implementation will then be
able to tell the compositor that wl_buffer is y-flipped</pre>
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