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authorJordan Justen <[email protected]>2016-10-21 15:46:37 +0100
committerLionel Landwerlin <[email protected]>2016-11-08 16:13:57 +0000
commitc0f505c7ef179249673e764de51b969e07fc8194 (patch)
treefc8f09532fe15ee329c880fdbfa24fea75d466a4 /docs/opengles.html
parentc53e9c97802ce3041d2da380f90ec7fc41a9f5b0 (diff)
i965: Add function to indicate when sampling with hiz is supported
Currently it indicates that this is never supported, but soon it will be supported for gen8+^w gen9+ v2 by Ben: - Explicitly disable aux_hiz for gen < 9 (with comment) - squashed in next patch to avoid unused and useless functions i965: Support sampling with hiz during rendering For gen8, we can sample from depth while using the hiz buffer. This allows us to sample depth without resolving from hiz to the depth texture. To do this we must resolve to hiz before drawing so we can use the hiz buffer to sample while rendering. Hopefully the hiz buffer will already be resolved in most cases because it was previously rendered, meaning the hiz resolve is a no-op. Note that this is still controlled by the intel_miptree_sample_with_hiz function, and we will enable hiz sampling for gen8 in a separate patch. Signed-off-by: Jordan Justen <[email protected]> Reviewed-by: Topi Pohjolainen <[email protected]> Signed-off-by: Jordan Justen <[email protected]> (v1) Signed-off-by: Ben Widawsky <[email protected]> (v2) Reviewed-by: Topi Pohjolainen <[email protected]>
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