tool for ir dumps

tools/maxwell-disas/CMakeLists.txt

@@ -1,6 +1,8 @@
 # SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
 # SPDX-License-Identifier: GPL-3.0-or-later
-add_executable(maxwell-disas main.cpp)
+add_executable(maxwell-disas
+    main.cpp
+)
 target_link_libraries(maxwell-disas PRIVATE common shader_recompiler Threads::Threads)
 target_include_directories(maxwell-disas PRIVATE ${CMAKE_SOURCE_DIR}/src)
 if(UNIX AND NOT APPLE)

tools/maxwell-disas/file_environment.h

@@ -0,0 +1,60 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include <cstdlib>
+#include <sys/stat.h>
+#include "shader_recompiler/environment.h"
+
+class FileEnvironment final : public Shader::Environment {
+public:
+    FileEnvironment() = default;
+    ~FileEnvironment() override = default;
+    FileEnvironment& operator=(FileEnvironment&&) noexcept = default;
+    FileEnvironment(FileEnvironment&&) noexcept = default;
+    FileEnvironment& operator=(const FileEnvironment&) = delete;
+    FileEnvironment(const FileEnvironment&) = delete;
+    void Deserialize(std::ifstream& file) {}
+    [[nodiscard]] u64 ReadInstruction(u32 address) override {
+        if (address < read_lowest || address > read_highest) {
+            std::printf("cant read %08x\n", address);
+            std::abort();
+        }
+        return code[(address - read_lowest) / sizeof(u64)];
+    }
+    [[nodiscard]] u32 ReadCbufValue(u32 cbuf_index, u32 cbuf_offset) override { return 0; }
+    [[nodiscard]] Shader::TextureType ReadTextureType(u32 handle) override {
+        auto const it{texture_types.find(handle)};
+        return it->second;
+    }
+    [[nodiscard]] Shader::TexturePixelFormat ReadTexturePixelFormat(u32 handle) override {
+        auto const it{texture_pixel_formats.find(handle)};
+        return it->second;
+    }
+    [[nodiscard]] bool IsTexturePixelFormatInteger(u32 handle) override { return true; }
+    [[nodiscard]] u32 ReadViewportTransformState() override { return viewport_transform_state; }
+    [[nodiscard]] u32 LocalMemorySize() const override { return local_memory_size; }
+    [[nodiscard]] u32 SharedMemorySize() const override { return shared_memory_size; }
+    [[nodiscard]] u32 TextureBoundBuffer() const override { return texture_bound; }
+    [[nodiscard]] std::array<u32, 3> WorkgroupSize() const override { return workgroup_size; }
+    [[nodiscard]] std::optional<Shader::ReplaceConstant> GetReplaceConstBuffer(u32 bank, u32 offset) override {
+        auto const it = cbuf_replacements.find((u64(bank) << 32) | u64(offset));
+        return it != cbuf_replacements.end() ? std::optional{it->second} : std::nullopt;
+    }
+    [[nodiscard]] bool HasHLEMacroState() const override { return cbuf_replacements.size() != 0; }
+    void Dump(u64 pipeline_hash, u64 shader_hash) override {}
+    std::vector<u64> code;
+    std::unordered_map<u32, Shader::TextureType> texture_types;
+    std::unordered_map<u32, Shader::TexturePixelFormat> texture_pixel_formats;
+    std::unordered_map<u64, u32> cbuf_values;
+    std::unordered_map<u64, Shader::ReplaceConstant> cbuf_replacements;
+    std::array<u32, 3> workgroup_size{};
+    u32 local_memory_size{};
+    u32 shared_memory_size{};
+    u32 texture_bound{};
+    u32 read_lowest{};
+    u32 read_highest{};
+    u32 initial_offset{};
+    u32 viewport_transform_state = 1;
+};

tools/maxwell-disas/main.cpp

@@ -162,7 +162,7 @@ std::string_view SpecialRegGetName(size_t i) {
 }
 #include "generated.cpp"
 
-int ReferenceImpl(int argc, char *argv[]) {
+int DisasReferenceImpl(int argc, char *argv[]) {
     std::vector<uint64_t> code;
     FILE *fp = fopen(argv[1], "rb");
     if (fp != NULL) {
@@ -181,7 +181,7 @@ int ReferenceImpl(int argc, char *argv[]) {
     return EXIT_SUCCESS;
 }
 
-int ShaderRecompilerDisas(int argc, char *argv[]) {
+int DisasShaderRecompilerImpl(int argc, char *argv[]) {
     std::vector<u64> code;
     FILE *fp = fopen(argv[1], "rb");
     if (fp != NULL) {
@@ -203,17 +203,19 @@ int ShaderRecompilerDisas(int argc, char *argv[]) {
 int main(int argc, char *argv[]) {
     if (argc < 2) {
         printf(
-            "usage: %s [input file] [-n]\n"
+            "usage: %s [input file] [-n/i]\n"
             "Specify -n to use a disassembler that is NOT tied to the shader recompiler\n"
             "aka. a reference disassembler\n"
             , argv[0]);
         return EXIT_FAILURE;
     }
+
+    //DumpProgram
+
     if (argc >= 3) {
-        if (::strcmp(argv[2], "-n") == 0
-        || ::strcmp(argv[2], "--new") == 0) {
-            return ReferenceImpl(argc, argv);
+        if (::strcmp(argv[2], "-n") == 0 || ::strcmp(argv[2], "--new") == 0) {
+            return DisasReferenceImpl(argc, argv);
         }
     }
-    return ShaderRecompilerDisas(argc, argv);
+    return DisasShaderRecompilerImpl(argc, argv);
 }