Failed vertex shader assembly (mad oFog) + solution

[PatrickvL]

The following vertex shader assembly line fails :

mad oFog /* removed swizzle */, -r3, c150.z, c150.w

It can be fixed by adding this regexp to Direct3DDevice8::CreateVertexShader() :

    SourceCode = std::regex_replace(SourceCode, std::regex("mad (oFog|oPts)(.*), (-?)([crv][0-9]+(?![\\.0-9])), (.+)\\n"), "mad $1$2, $3$4.x /* select single component */, $5\n");

The result is :

mad oFog /* removed swizzle */, -r3.x /* select single component */, c150.z, c150.w

..which succesfully compiles. (Not sure if the .x component is the right choice.)

Test-case : Cxbx-Reloaded, running Morrowind.

[crosire]

Do you want to make this into a pull request?

[PatrickvL]

No time, I'm sorry

[PatrickvL]

You neither it seems ;)

[crosire]

? It's fixed in https://github.com/crosire/d3d8to9/commit/52a32ef4d8f569ec299bcad13f1a531ce12504c1?