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authorEric Anholt <[email protected]>2018-06-14 18:05:50 -0700
committerEric Anholt <[email protected]>2018-06-15 16:09:39 -0700
commit4106f6ce54f77c3cb5712eafc1358f53b99b5e09 (patch)
tree5d77094f89714cbc60fb7c8fd6294f71f61382bf /src/gallium/drivers
parent9aa670e52ae5698359f2b1271c047d5ebd6f4c02 (diff)
v3d: Handle a no-intersection scissor even if it's outside of the VP.
The min/maxes ended up producing a negative clip width/height for dEQP-GLES3.functional.fragment_ops.scissor.outside_render_line. Just make sure they stay at 0 (or v3d 3.x's workaround) if that happens.
Diffstat (limited to 'src/gallium/drivers')
-rw-r--r--src/gallium/drivers/v3d/v3dx_emit.c18
1 files changed, 8 insertions, 10 deletions
diff --git a/src/gallium/drivers/v3d/v3dx_emit.c b/src/gallium/drivers/v3d/v3dx_emit.c
index ac93badfda8..344f9e464f2 100644
--- a/src/gallium/drivers/v3d/v3dx_emit.c
+++ b/src/gallium/drivers/v3d/v3dx_emit.c
@@ -343,20 +343,18 @@ v3dX(emit_state)(struct pipe_context *pctx)
cl_emit(&job->bcl, CLIP_WINDOW, clip) {
clip.clip_window_left_pixel_coordinate = minx;
clip.clip_window_bottom_pixel_coordinate = miny;
- clip.clip_window_width_in_pixels = maxx - minx;
- clip.clip_window_height_in_pixels = maxy - miny;
-
-#if V3D_VERSION < 41
- /* The HW won't entirely clip out when scissor w/h is
- * 0. Just treat it the same as rasterizer discard.
- */
- if (clip.clip_window_width_in_pixels == 0 ||
- clip.clip_window_height_in_pixels == 0) {
+ if (maxx > minx && maxy > miny) {
+ clip.clip_window_width_in_pixels = maxx - minx;
+ clip.clip_window_height_in_pixels = maxy - miny;
+ } else if (V3D_VERSION < 41) {
+ /* The HW won't entirely clip out when scissor
+ * w/h is 0. Just treat it the same as
+ * rasterizer discard.
+ */
rasterizer_discard = true;
clip.clip_window_width_in_pixels = 1;
clip.clip_window_height_in_pixels = 1;
}
-#endif
}
job->draw_min_x = MIN2(job->draw_min_x, minx);