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  • Hash : 371542cd
    Author : Shahbaz Youssefi
    Date : 2021-08-23T23:10:09

    Vulkan: Use VK_EXT_load_store_op_none
    
    With read-only depth/stencil attachments, ANGLE utilizes storeOp=NONE to
    optimize memory bandwidth (by avoiding write back of tile memory at the
    end of the render pass). Simultaneoulsy, this avoids a synchronization
    hazard with the next write to that depth/stencil image.
    
    If a framebuffer contains a depth/stencil attachment but it's unused,
    ANGLE utilizes loadOp=NONE/storeOp=NONE to effectively remove any memory
    bandwidth wasted on the attachment.
    
    Bug: angleproject:5371
    Change-Id: I76cbadbf1194041532ac4b690ffe087298f2de51
    Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3114232
    Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
    Reviewed-by: Jamie Madill <jmadill@chromium.org>
    Reviewed-by: Charlie Lao <cclao@google.com>
    

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