Fix warnings.

Signed-off-by: John McCutchan <john@johnmccutchan.com>
Update to Spectre breakage.

Signed-off-by: John McCutchan <john@johnmccutchan.com>
Avoid null viewport values.

Signed-off-by: John McCutchan <john@johnmccutchan.com>
Fix warnings.

Signed-off-by: John McCutchan <john@johnmccutchan.com>
Semi-working Javelin Renderer

Signed-off-by: John McCutchan <john@johnmccutchan.com>