From: Topi Pohjolainen <topi.pohjolai...@gmail.com>
Fixes gles3 conformance tests:
framebuffer_blit_functionality_negative_height_blit
framebuffer_blit_functionality_negative_width_blit
framebuffer_blit_functionality_negative_dimensions_blit
framebuffer_blit_functionality_magnifying_blit
framebuffer_blit_functionality_multisampled_to_singlesampled_blit
Signed-off-by: Topi Pohjolainen <topi.pohjolai...@gmail.com>
---
src/mesa/drivers/dri/i965/gen8_viewport_state.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/src/mesa/drivers/dri/i965/gen8_viewport_state.c
b/src/mesa/drivers/dri/i965/gen8_viewport_state.c
index 9c89532..eda9aad 100644
--- a/src/mesa/drivers/dri/i965/gen8_viewport_state.c
+++ b/src/mesa/drivers/dri/i965/gen8_viewport_state.c
@@ -94,6 +94,13 @@ gen8_upload_sf_clip_viewport(struct brw_context *brw)
float gbx = maximum_guardband_extent / ctx->ViewportArray[i].Width;
float gby = maximum_guardband_extent / ctx->ViewportArray[i].Height;
+ /**
+ * Stencil blits require W-tiled to be treated as Y-tiled needing in
+ * turn width to be programmed twice the original.
+ */
+ if (brw->meta_in_progress)
+ gbx *= 2;
+
/* _NEW_VIEWPORT: Guardband Clipping */
vp[8] = -gbx; /* x-min */
vp[9] = gbx; /* x-max */
--
1.9.1
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