RESOLVED WONTFIX 198985
[WHLSL] Hook up RWTextures 
https://bugs.webkit.org/show_bug.cgi?id=198985
Summary [WHLSL] Hook up RWTextures
Myles C. Maxfield
Reported 2019-06-18 17:05:03 PDT
Hooking them up is tricky because writable textures don't have either default constructors or copy assignment operators in High Sierra. Therefore, we can probably model RWTextures under the "logical mode" restrictions.
Attachments
Test (6.79 KB, text/html)
2019-06-18 17:33 PDT, Myles C. Maxfield 		no flags
Details
View All Add attachment proposed patch, testcase, etc.
Myles C. Maxfield
Comment 1 2019-06-18 17:33:05 PDT
Created attachment 372411 [details] Test
Myles C. Maxfield
Comment 2 2019-06-20 12:49:07 PDT
Turns out writable textures aren’t supported in argument buffers. https://developer.apple.com/documentation/metal/buffers/about_argument_buffers?language=objc We probably need a hybrid approach where some resources are put in argument buffers and some are attached directly.
Myles C. Maxfield
Comment 3 2019-06-24 15:14:32 PDT
Also, MSL doesn't support putting RWTextures in tier 1 hardware, meaning we'll have to demote them to regular arguments.
Myles C. Maxfield
Comment 4 2020-05-05 00:42:38 PDT
WHLSL is no longer relevant.
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