From 02504aeb37cb3ee07dc421acc0570ad5ba25d53f Mon Sep 17 00:00:00 2001
From: Takoroka <137927095+Takoroka@users.noreply.github.com>
Date: Fri, 30 Oct 2026 05:02:52 -0400
Subject: video_core: draw Switch 2 task/mesh pipelines with VK_EXT_mesh_shader

While SET_MESH_CONTROL is on, a native draw binds a task program in the
vertex slot, its mesh program in the tessellation slot and a header-only
pass-through geometry program naming the per-primitive outputs. Translate
the first two as task and mesh programs with the mesh registers
(SET_MESH_SHADER_A/B, SET_MESH_INIT_SHADER) and that header, key their
pipelines by them, and build pipelines with task/mesh stages and no
vertex input, input assembly or tessellation state. The draw's vertex
count is the number of task workgroups: record vkCmdDrawMeshTasksEXT.
Enable VK_EXT_mesh_shader (task and mesh only) when the host has it; draws
are skipped without it, as they were before.
---
 src/video_core/dirty_flags.cpp | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'src/video_core/dirty_flags.cpp')

diff --git a/src/video_core/dirty_flags.cpp b/src/video_core/dirty_flags.cpp
index e6856aaca3..2f359749aa 100644
--- a/src/video_core/dirty_flags.cpp
+++ b/src/video_core/dirty_flags.cpp
@@ -64,6 +64,8 @@ void SetupDirtyRenderTargets(Maxwell3D::DirtyState::Tables& tables) {
 void SetupDirtyShaders(Maxwell3D::DirtyState::Tables& tables) {
     FillBlock(tables[0], OFF(pipelines), NUM(pipelines[0]) * Maxwell3D::Regs::MaxShaderProgram,
               Shaders);
+    // Task and mesh programs are translated with the mesh registers.
+    FillBlock(tables[1], Maxwell3D::Regs::MeshControl, 4, Shaders);
 }
 } // Anonymous namespace
 
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