kc3-lang/angle

2023-06-16T16:02:08

Vulkan: Refactor uniform/block binding duplication code Previously, resource binding assignment was done as such: ``` for each shader stage assign bindings to textures assign bindings to blocks assign bindings to images etc ``` To deduplicate bindings when the same resource was used in multiple stages, a map was used, keyed by the resource's name, to detect when an already visited resource is encountered in a future stage. This was both inefficient and unnecessarily complicated. With this change, resource binding assignment is done as such: ``` for each texture assign one binding to all shader stages for each block assign one binding to all shader stages for each image assign one binding to all shader stages etc ``` The aforementioned map is removed. Because the resource bindings are now changed, the rest of the code (which sets up the pipeline layout, updates descriptor sets, sets dynamic buffer offsets, etc) are all updated to follow the above pattern. As a result, nested loops are avoided and duplicate entries in the variable map are never visited. Bug: angleproject:7220 Change-Id: Iaff7b5f8b2bada8ac5078d21e5c790bf0d27aca7 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4622011 Reviewed-by: Yuxin Hu <yuxinhu@google.com> Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Charlie Lao <cclao@google.com>