From 51207c73c889dbdc4a586a5da23314f6d33e4eb9 Mon Sep 17 00:00:00 2001
From: Takoroka <137927095+Takoroka@users.noreply.github.com>
Date: Tue, 27 Oct 2026 22:26:16 -0400
Subject: Switch 2: Turing macros, native compute, Ampere shader lowering,
 native tiling

From changes.patch: the TU104/GA10x MME interpreter (shared macro context for
the process's channels, also on the compute class), native compute with QMD
3.0 dependency scheduling, the Ampere-to-Maxwell shader lowering, native
vertex stream sizes, and the console's GOB swizzle for textures, DMA copies
and the host unswizzle shaders. Switch 2 channels turn all of it on at init.

The lowering is widened for title 4 (all 32 of its programs lower): general
TEX (any dimension/LOD/mask, operand split 1+1/2+1/2+2/4+n, any but consistent
descriptor buffer), cube/array, SULD channel masks, 128-bit STG, indexed IPA,
VOTE, SHFL with any immediate or predicate output, R2P/P2R byte select,
uniform ULOP3/ULEA/UBREV/UFLO.SH/UISETP signed/UMOV URZ, IMNMX cbuf, IADD3
and FFMA uniform operands, FMUL /4 /8 x8, and BSSY/BSYNC/BREAK/WARPSYNC as
no-ops. The capture stops at unmapped memory. EDEN_NX2_SHADER_DUMP dumps every
native program; tools in C:\dev\nx2work test the lowering offline.
---
 src/video_core/macro.cpp | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

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

diff --git a/src/video_core/macro.cpp b/src/video_core/macro.cpp
index 86f528af15..a8acd81682 100644
--- a/src/video_core/macro.cpp
+++ b/src/video_core/macro.cpp
@@ -4,6 +4,8 @@
 // SPDX-FileCopyrightText: Copyright 2020 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
+#include <cstdlib>
+#include <unordered_set>
 #include <cstring>
 #include <fstream>
 #include <optional>
@@ -1339,6 +1341,34 @@ static void Dump(u64 hash, std::span<const u32> code, bool decompiled = false) {
 
 void MacroEngine::Execute(Core::System& system, Engines::Maxwell3D& maxwell3d, u32 method,
                           std::span<const u32> parameters) {
+    if (native_turing) {
+        maxwell3d.RefreshParameters();
+        const auto context = reinterpret_cast<std::uintptr_t>(this);
+        static std::unordered_set<std::uintptr_t> captured_contexts;
+        if (std::getenv("EDEN_NATIVE_FRAME_CAPTURE") && captured_contexts.insert(context).second) {
+            std::ofstream dump("native-graphics-mme-" + std::to_string(context) + ".bin", std::ios::binary);
+            dump.write(reinterpret_cast<const char*>(native_code.data()), sizeof(native_code));
+        }
+        LOG_DEBUG(HW_GPU, "Native MME context={:#x}", context);
+        LOG_DEBUG(HW_GPU, "Native MME start={:#x}, parameters={}, data={:08x}", method, parameters.size(), fmt::join(parameters, ","));
+        const auto result = native_interpreter.Execute(native_code, method, parameters,
+            [&](u32 address) { return address < Maxwell3D::Regs::NUM_REGS ? maxwell3d.GetRegisterValue(address) : 0U; },
+            [&](u32 address, u32 value) {
+                if (address >= 0xe00) return false;
+                maxwell3d.CallMethod(system, address, value, true);
+                return true;
+            });
+        if (!result.success) {
+            native_execution_failed = true;
+            if (std::getenv("EDEN_NATIVE_DRAW_DIAGNOSTICS")) {
+                std::ofstream dump("native-mme-" + std::to_string(method) + ".bin", std::ios::binary);
+                dump.write(reinterpret_cast<const char*>(native_code.data()), sizeof(native_code));
+            }
+            LOG_ERROR(HW_GPU, "Native MME failed: start={:#x}, pc={:#x}, consumed={}/{}, error={}",
+                      method, result.pc, result.consumed, parameters.size(), result.error);
+        }
+        return;
+    }
     const auto execute_variant = [&system, &maxwell3d, &parameters,
                                   method](AnyCachedMacro& cached) {
         if (std::holds_alternative<MacroInterpreterImpl>(cached) ||
-- 
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