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<p class="MsoPlainText"><span lang="EN-US">> glDrawBuffer(GL_FRONT_AND_BACK) results in to segmentation fault if<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US">> intel->is_front_buffer_rendering is not enabled with GL_FRONT_AND_BACK.<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US">> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=44153<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US">> <o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US">> Reported-by: Yi Sun <yi.sun@intel.com><o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US">> Signed-off-by: Anuj Phogat <anuj.phogat@gmail.com><o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US">> ---<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US">> src/mesa/drivers/dri/intel/intel_buffers.c | 2 +-<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US">> 1 files changed, 1 insertions(+), 1 deletions(-)<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US">> <o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US">> diff --git a/src/mesa/drivers/dri/intel/intel_buffers.c<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US">> b/src/mesa/drivers/dri/intel/intel_buffers.c<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US">> index 4632751..9809f79 100644<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US">> --- a/src/mesa/drivers/dri/intel/intel_buffers.c<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US">> +++ b/src/mesa/drivers/dri/intel/intel_buffers.c<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US">> @@ -88,7 +88,7 @@ intelDrawBuffer(struct gl_context * ctx, GLenum mode)<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US">> intel->is_front_buffer_rendering;<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US">> <o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US">> intel->is_front_buffer_rendering = (mode == GL_FRONT_LEFT)<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US">> - || (mode == GL_FRONT);<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US">> + || (mode == GL_FRONT) || (mode == GL_FRONT_AND_BACK);<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US">> <o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US">> /* If we weren't front-buffer rendering before but we are now,<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US">> * invalidate our DRI drawable so we'll ask for new buffers<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US">> --<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US">> 1.7.7.4<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">This patch fixes the segmentation fault issue while calling function glDrawBuffer.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Tested-by: Sun Yi <yi.sun@intel.com><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Thanks<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> --Yi,Sun<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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