relax QCOM_shading_rate extension (#394)
diff --git a/extensions/QCOM/QCOM_shading_rate.txt b/extensions/QCOM/QCOM_shading_rate.txt
index 7fd4630..c2e58b6 100644
--- a/extensions/QCOM/QCOM_shading_rate.txt
+++ b/extensions/QCOM/QCOM_shading_rate.txt
@@ -21,8 +21,8 @@
Version
- Last Modified Date: March 17, 2020
- Revision: #1
+ Last Modified Date: April 22, 2020
+ Revision: #2
Number
@@ -227,7 +227,7 @@
1x1.
If the <W>x<H> value of SHADING_RATE_QCOM is expressed as <w, h> then the
- adjusted rate may be any <w', h'> as long as w' <= w and h' <= h. If
+ adjusted rate may be any <w', h'> as long as (w' * h') <= (w * h). If
PRESERVE_SHADING_RATE_ASPECT_RATIO is TRUE, then the implementation further
guarantees that (w'/h') equals (w/h) or that w'=1 and h'=1.
@@ -421,3 +421,5 @@
Rev. Date Author Changes
---- -------- -------- ----------------------------------------------
1 03/17/20 jleger Initial draft.
+ 2 04/22/20 jleger Relaxed the <w', h'> guarantee from "w'<=w and
+ h'<=h" to "w’*h’ <= w*h".
