shink vulkan shader

[futz12]

No description provided.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 93.21%. Comparing base (9bd6551) to head (b47eb27).

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #6479      +/-   ##
==========================================
- Coverage   93.23%   93.21%   -0.02%     
==========================================
  Files         852      853       +1     
  Lines      267286   267495     +209     
==========================================
+ Hits       249195   249345     +150     
- Misses      18091    18150      +59     

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[tencent-adm]

Thank you for your submission, we really appreciate it. Like many open source projects, we ask that you all sign our Contributor License Agreement before we can accept your contribution.
1 out of 2 committers have signed the CLA.

✅ futz12
❌ nihui
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[Copilot]

Pull request overview

Adds a Vulkan backend implementation for the existing Shrink layer by introducing a Vulkan pipeline wrapper and a corresponding compute shader, enabling GPU execution for this operator.

Changes:

• Added Shrink_vulkan layer class with pipeline lifecycle management (create_pipeline / destroy_pipeline) and Vulkan forward_inplace.
• Added Vulkan compute shader shrink.comp implementing the Shrink operation for VkMat buffers.
• Introduced new Vulkan layer header/implementation files for integration with the existing Vulkan layer system.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File	Description
src/layer/vulkan/shrink_vulkan.h	Declares Shrink_vulkan Vulkan layer wrapper and its pipeline member.
src/layer/vulkan/shrink_vulkan.cpp	Implements pipeline creation/destruction and dispatch for Shrink on Vulkan.
src/layer/vulkan/shader/shrink.comp	Implements Shrink in GLSL compute shader with specialization constants for parameters.

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[nihui]

Thanks for your contribution !