When upscaling you can end up interpolating between the edge pixel and one
past the edge. Using CLAMP_TO_EDGE seems like the most reasonable thing to
do in this case. This fixes two of the new Vulkan CTS tests in
dEQP-VK.api.copy_and_blit.blit_image.*
Jason Ekstrand <ja...@jlekstrand.net>
Cc: "12.0" <mesa-sta...@lists.freedesktop.org>
---
src/intel/vulkan/anv_meta_blit.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/src/intel/vulkan/anv_meta_blit.c b/src/intel/vulkan/anv_meta_blit.c
index 3c54ef4..dc098ef 100644
--- a/src/intel/vulkan/anv_meta_blit.c
+++ b/src/intel/vulkan/anv_meta_blit.c
@@ -211,6 +211,9 @@ meta_emit_blit(struct anv_cmd_buffer *cmd_buffer,
.sType = VK_STRUCTURE_TYPE_SAMPLER_CREATE_INFO,
.magFilter = blit_filter,
.minFilter = blit_filter,
+ .addressModeU = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE,
+ .addressModeV = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE,
+ .addressModeW = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE,
}, &cmd_buffer->pool->alloc, &sampler);
VkDescriptorPool desc_pool;
--
2.5.0.400.gff86faf
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