Incorrect function signature for vkCmdSetBlendConstants

[gdkchan]

Summary

The vkCmdSetBlendConstants should take as argument a pointer to a fixed size array with 4 float values, however the function on Silk.NET bindings currently only takes a single float argument, which is incorrect and makes the funciton unusable.

Reference:
https://www.khronos.org/registry/vulkan/specs/1.2-extensions/man/html/vkCmdSetBlendConstants.html

What Silk.NET currently has:

public partial void CmdSetBlendConstants([Count(Count = 0)] CommandBuffer commandBuffer, [Count(Count = 0)] float blendConstants);

Right now, calling the function will either cause garbage to be used as the blend constants (if the register happens to have a valid pointer) or crash. Sample API dump output that I got with a call passing 0 as constant:

vkCmdSetBlendConstants(commandBuffer, blendConstants) returns void:
    commandBuffer:                  VkCommandBuffer = 00000250A8FFEB08
    blendConstants:                 const float[4] = 00007FFECF8A1F04
        blendConstants[0]:              const float = 2.57654e-38
        blendConstants[1]:              const float = -3.48425e+29
        blendConstants[2]:              const float = nan
        blendConstants[3]:              const float = 0.000999451

Steps to reproduce

• Platform: Desktop
• Framework Version: .NET 5
• API: Vulkan
• API Version: Vulkan 1.2

[HurricanKai]

Yep this is probably a bug in build tools, with inline fixed buffers not being recognized. @Perksey

[Perksey]

Fix is up (#432), will be in 2.3.