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gallium/hud: do not specify potentially invalid depth-range 

Setting the depth-scale to 1 while leaving the depth-translation at 0
means our near-plane is at -1 in OpenGL semantics, which is
out-of-range on some drivers. In particular, Zink has this limitation.

But since we'll only pass a zero z in here anyway, we might as well
multiply it by zero, and get the same result. This avoids the problem.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5408>
This commit is contained in:
Erik Faye-Lund 2020-06-09 21:25:26 +02:00 committed by Marge Bot
parent 978285f69a
commit 67ad75a282
1 changed files with 1 additions and 1 deletions
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2
src/gallium/auxiliary/hud/hud_context.c
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@ -523,7 +523,7 @@ hud_draw_results(struct hud_context *hud, struct pipe_resource *tex)
viewport.scale[0] = 0.5f * hud->fb_width;
viewport.scale[1] = 0.5f * hud->fb_height;
viewport.scale[2] = 1.0f;
viewport.scale[2] = 0.0f;
viewport.translate[0] = 0.5f * hud->fb_width;
viewport.translate[1] = 0.5f * hud->fb_height;
viewport.translate[2] = 0.0f;