[Mesa-dev] [PATCH] panfrost: Fix clipping region
Alyssa Rosenzweig
alyssa at rosenzweig.io
Sat Feb 16 01:05:33 UTC 2019
Signed-off-by: Alyssa Rosenzweig <alyssa at rosenzweig.io>
---
src/gallium/drivers/panfrost/pan_context.c | 15 +++++++++++----
1 file changed, 11 insertions(+), 4 deletions(-)
diff --git a/src/gallium/drivers/panfrost/pan_context.c b/src/gallium/drivers/panfrost/pan_context.c
index 97df92258da..a4d0719fdc5 100644
--- a/src/gallium/drivers/panfrost/pan_context.c
+++ b/src/gallium/drivers/panfrost/pan_context.c
@@ -497,10 +497,17 @@ panfrost_viewport(struct panfrost_context *ctx,
* (somewhat) asymmetric ints. */
struct mali_viewport ret = {
- .clip_minx = viewport_x0,
- .clip_miny = viewport_y0,
- .clip_maxx = viewport_x1,
- .clip_maxy = viewport_x1,
+ /* By default, do no viewport clipping, i.e. clip to (-inf,
+ * inf) in each direction. Clipping to the viewport in theory
+ * should work, but in practice causes issues when we're not
+ * explicitly trying to scissor */
+
+ .clip_minx = -inff,
+ .clip_miny = -inff,
+ .clip_maxx = inff,
+ .clip_maxy = inff,
+
+ /* We always perform depth clipping (TODO: Can this be disabled?) */
.clip_minz = depth_clip_near,
.clip_maxz = depth_clip_far,
--
2.20.1
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