early-access version 3860

README.md

@@ -1,7 +1,7 @@
 yuzu emulator early access
 =============
 
-This is the source code for early-access 3859.
+This is the source code for early-access 3860.
 
 ## Legal Notice
 

src/audio_core/adsp/apps/audio_renderer/audio_renderer.cpp

@@ -88,8 +88,13 @@ MailboxMessage AudioRenderer::Receive(Direction dir, bool block) {
     return mailbox.Receive(dir, block);
 }
 
-void AudioRenderer::SetCommandBuffer(s32 session_id, CommandBuffer& buffer) noexcept {
-    command_buffers[session_id] = buffer;
+void AudioRenderer::SetCommandBuffer(s32 session_id, CpuAddr buffer, u64 size, u64 time_limit,
+                                     u64 applet_resource_user_id, bool reset) noexcept {
+    command_buffers[session_id].buffer = buffer;
+    command_buffers[session_id].size = size;
+    command_buffers[session_id].time_limit = time_limit;
+    command_buffers[session_id].applet_resource_user_id = applet_resource_user_id;
+    command_buffers[session_id].reset_buffer = reset;
 }
 
 u32 AudioRenderer::GetRemainCommandCount(s32 session_id) const noexcept {

src/audio_core/adsp/apps/audio_renderer/audio_renderer.h

@@ -75,7 +75,8 @@ public:
     void Send(Direction dir, MailboxMessage message);
     MailboxMessage Receive(Direction dir, bool block = true);
 
-    void SetCommandBuffer(s32 session_id, CommandBuffer& buffer) noexcept;
+    void SetCommandBuffer(s32 session_id, CpuAddr buffer, u64 size, u64 time_limit,
+                          u64 applet_resource_user_id, bool reset) noexcept;
     u32 GetRemainCommandCount(s32 session_id) const noexcept;
     void ClearRemainCommandCount(s32 session_id) noexcept;
     u64 GetRenderingStartTick(s32 session_id) const noexcept;

src/audio_core/adsp/apps/audio_renderer/command_list_processor.cpp

@@ -37,11 +37,6 @@ u32 CommandListProcessor::GetRemainingCommandCount() const {
     return command_count - processed_command_count;
 }
 
-void CommandListProcessor::SetBuffer(const CpuAddr buffer, const u64 size) {
-    commands = reinterpret_cast<u8*>(buffer + sizeof(Renderer::CommandListHeader));
-    commands_buffer_size = size;
-}
-
 Sink::SinkStream* CommandListProcessor::GetOutputSinkStream() const {
     return stream;
 }

src/audio_core/adsp/apps/audio_renderer/command_list_processor.h

@@ -56,14 +56,6 @@ public:
      */
     u32 GetRemainingCommandCount() const;
 
-    /**
-     * Set the command buffer.
-     *
-     * @param buffer - The buffer to use.
-     * @param size   - The size of the buffer.
-     */
-    void SetBuffer(CpuAddr buffer, u64 size);
-
     /**
      * Get the stream for this command list.
      *

src/audio_core/renderer/command/data_source/adpcm.cpp

@@ -20,6 +20,12 @@ void AdpcmDataSourceVersion1Command::Process(const AudioRenderer::CommandListPro
     auto out_buffer{processor.mix_buffers.subspan(output_index * processor.sample_count,
                                                   processor.sample_count)};
 
+    for (auto& wave_buffer : wave_buffers) {
+        wave_buffer.loop_start_offset = wave_buffer.start_offset;
+        wave_buffer.loop_end_offset = wave_buffer.end_offset;
+        wave_buffer.loop_count = -(wave_buffer.loop & 1);
+    }
+
     DecodeFromWaveBuffersArgs args{
         .sample_format{SampleFormat::Adpcm},
         .output{out_buffer},

src/audio_core/renderer/command/data_source/decode.cpp

@@ -123,11 +123,13 @@ static u32 DecodeAdpcm(Core::Memory::Memory& memory, std::span<s16> out_buffer,
         return 0;
     }
 
-    auto samples_to_process{
-        std::min(req.end_offset - req.start_offset - req.offset, req.samples_to_read)};
+    auto start_pos{req.start_offset + req.offset};
+    auto samples_to_process{std::min(req.end_offset - start_pos, req.samples_to_read)};
+    if (samples_to_process == 0) {
+        return 0;
+    }
 
     auto samples_to_read{samples_to_process};
-    auto start_pos{req.start_offset + req.offset};
     auto samples_remaining_in_frame{start_pos % SamplesPerFrame};
     auto position_in_frame{(start_pos / SamplesPerFrame) * NibblesPerFrame +
                            samples_remaining_in_frame};
@@ -225,13 +227,24 @@ static u32 DecodeAdpcm(Core::Memory::Memory& memory, std::span<s16> out_buffer,
  * @param args   - The wavebuffer data, and information for how to decode it.
  */
 void DecodeFromWaveBuffers(Core::Memory::Memory& memory, const DecodeFromWaveBuffersArgs& args) {
+    static constexpr auto EndWaveBuffer = [](auto& voice_state, auto& wavebuffer, auto& index,
+                                             auto& played_samples, auto& consumed) -> void {
+        voice_state.wave_buffer_valid[index] = false;
+        voice_state.loop_count = 0;
+
+        if (wavebuffer.stream_ended) {
+            played_samples = 0;
+        }
+
+        index = (index + 1) % MaxWaveBuffers;
+        consumed++;
+    };
     auto& voice_state{*args.voice_state};
     auto remaining_sample_count{args.sample_count};
     auto fraction{voice_state.fraction};
 
-    const auto sample_rate_ratio{
-        (Common::FixedPoint<49, 15>(args.source_sample_rate) / args.target_sample_rate) *
-        args.pitch};
+    const auto sample_rate_ratio{Common::FixedPoint<49, 15>(
+        (f32)args.source_sample_rate / (f32)args.target_sample_rate * (f32)args.pitch)};
     const auto size_required{fraction + remaining_sample_count * sample_rate_ratio};
 
     if (size_required < 0) {
@@ -298,22 +311,23 @@ void DecodeFromWaveBuffers(Core::Memory::Memory& memory, const DecodeFromWaveBuf
             auto end_offset{wavebuffer.end_offset};
 
             if (wavebuffer.loop && voice_state.loop_count > 0 &&
-                wavebuffer.loop_start_offset != 0 && wavebuffer.loop_end_offset != 0 &&
                 wavebuffer.loop_start_offset <= wavebuffer.loop_end_offset) {
                 start_offset = wavebuffer.loop_start_offset;
                 end_offset = wavebuffer.loop_end_offset;
             }
 
-            DecodeArg decode_arg{.buffer{wavebuffer.buffer},
-                                 .buffer_size{wavebuffer.buffer_size},
-                                 .start_offset{start_offset},
-                                 .end_offset{end_offset},
-                                 .channel_count{args.channel_count},
-                                 .coefficients{},
-                                 .adpcm_context{nullptr},
-                                 .target_channel{args.channel},
-                                 .offset{offset},
-                                 .samples_to_read{samples_to_read - samples_read}};
+            DecodeArg decode_arg{
+                .buffer{wavebuffer.buffer},
+                .buffer_size{wavebuffer.buffer_size},
+                .start_offset{start_offset},
+                .end_offset{end_offset},
+                .channel_count{args.channel_count},
+                .coefficients{},
+                .adpcm_context{nullptr},
+                .target_channel{args.channel},
+                .offset{offset},
+                .samples_to_read{samples_to_read - samples_read},
+            };
 
             s32 samples_decoded{0};
 
@@ -350,42 +364,30 @@ void DecodeFromWaveBuffers(Core::Memory::Memory& memory, const DecodeFromWaveBuf
             temp_buffer_pos += samples_decoded;
             offset += samples_decoded;
 
-            if (samples_decoded == 0 || offset >= end_offset - start_offset) {
-                offset = 0;
-                if (!wavebuffer.loop) {
-                    voice_state.wave_buffer_valid[wavebuffer_index] = false;
-                    voice_state.loop_count = 0;
+            if (samples_decoded && offset < end_offset - start_offset) {
+                continue;
+            }
 
-                    if (wavebuffer.stream_ended) {
-                        played_sample_count = 0;
-                    }
-
-                    wavebuffer_index = (wavebuffer_index + 1) % MaxWaveBuffers;
-                    wavebuffers_consumed++;
-                } else {
-                    voice_state.loop_count++;
-                    if (wavebuffer.loop_count >= 0 &&
-                        (voice_state.loop_count > wavebuffer.loop_count || samples_decoded == 0)) {
-                        voice_state.wave_buffer_valid[wavebuffer_index] = false;
-                        voice_state.loop_count = 0;
-
-                        if (wavebuffer.stream_ended) {
-                            played_sample_count = 0;
-                        }
-
-                        wavebuffer_index = (wavebuffer_index + 1) % MaxWaveBuffers;
-                        wavebuffers_consumed++;
-                    }
-
-                    if (samples_decoded == 0) {
-                        is_buffer_starved = true;
-                        break;
-                    }
-
-                    if (args.IsVoicePlayedSampleCountResetAtLoopPointSupported) {
-                        played_sample_count = 0;
-                    }
+            offset = 0;
+            if (wavebuffer.loop) {
+                voice_state.loop_count++;
+                if (wavebuffer.loop_count >= 0 &&
+                    (voice_state.loop_count > wavebuffer.loop_count || samples_decoded == 0)) {
+                    EndWaveBuffer(voice_state, wavebuffer, wavebuffer_index, played_sample_count,
+                                  wavebuffers_consumed);
                 }
+
+                if (samples_decoded == 0) {
+                    is_buffer_starved = true;
+                    break;
+                }
+
+                if (args.IsVoicePlayedSampleCountResetAtLoopPointSupported) {
+                    played_sample_count = 0;
+                }
+            } else {
+                EndWaveBuffer(voice_state, wavebuffer, wavebuffer_index, played_sample_count,
+                              wavebuffers_consumed);
             }
         }
 

src/audio_core/renderer/command/data_source/pcm_float.cpp

@@ -21,6 +21,12 @@ void PcmFloatDataSourceVersion1Command::Process(
     auto out_buffer = processor.mix_buffers.subspan(output_index * processor.sample_count,
                                                     processor.sample_count);
 
+    for (auto& wave_buffer : wave_buffers) {
+        wave_buffer.loop_start_offset = wave_buffer.start_offset;
+        wave_buffer.loop_end_offset = wave_buffer.end_offset;
+        wave_buffer.loop_count = -(wave_buffer.loop & 1);
+    }
+
     DecodeFromWaveBuffersArgs args{
         .sample_format{SampleFormat::PcmFloat},
         .output{out_buffer},

src/audio_core/renderer/command/data_source/pcm_int16.cpp

@@ -23,6 +23,12 @@ void PcmInt16DataSourceVersion1Command::Process(
     auto out_buffer = processor.mix_buffers.subspan(output_index * processor.sample_count,
                                                     processor.sample_count);
 
+    for (auto& wave_buffer : wave_buffers) {
+        wave_buffer.loop_start_offset = wave_buffer.start_offset;
+        wave_buffer.loop_end_offset = wave_buffer.end_offset;
+        wave_buffer.loop_count = -(wave_buffer.loop & 1);
+    }
+
     DecodeFromWaveBuffersArgs args{
         .sample_format{SampleFormat::PcmInt16},
         .output{out_buffer},

src/audio_core/renderer/system.cpp

@@ -609,17 +609,11 @@ void System::SendCommandToDsp() {
                 time_limit_percent = 70.0f;
             }
 
-            AudioRenderer::CommandBuffer command_buffer{
-                .buffer{translated_addr},
-                .size{command_size},
-                .time_limit{
-                    static_cast<u64>((time_limit_percent / 100) * 2'880'000.0 *
-                                     (static_cast<f32>(render_time_limit_percent) / 100.0f))},
-                .applet_resource_user_id{applet_resource_user_id},
-                .reset_buffer{reset_command_buffers},
-            };
-
-            audio_renderer.SetCommandBuffer(session_id, command_buffer);
+            auto time_limit{
+                static_cast<u64>((time_limit_percent / 100) * 2'880'000.0 *
+                                 (static_cast<f32>(render_time_limit_percent) / 100.0f))};
+            audio_renderer.SetCommandBuffer(session_id, translated_addr, command_size, time_limit,
+                                            applet_resource_user_id, reset_command_buffers);
             reset_command_buffers = false;
             command_buffer_size = command_size;
             if (remaining_command_count == 0) {

src/core/loader/loader.cpp

@@ -108,7 +108,7 @@ std::string GetFileTypeString(FileType type) {
     return "unknown";
 }
 
-constexpr std::array<const char*, 66> RESULT_MESSAGES{
+constexpr std::array<const char*, 68> RESULT_MESSAGES{
     "The operation completed successfully.",
     "The loader requested to load is already loaded.",
     "The operation is not implemented.",
@@ -175,6 +175,8 @@ constexpr std::array<const char*, 66> RESULT_MESSAGES{
     "The KIP BLZ decompression of the section failed unexpectedly.",
     "The INI file has a bad header.",
     "The INI file contains more than the maximum allowable number of KIP files.",
+    "Integrity verification could not be performed for this file.",
+    "Integrity verification failed.",
 };
 
 std::string GetResultStatusString(ResultStatus status) {

src/core/loader/loader.h

@@ -3,6 +3,7 @@
 
 #pragma once
 
+#include <functional>
 #include <iosfwd>
 #include <memory>
 #include <optional>
@@ -132,6 +133,8 @@ enum class ResultStatus : u16 {
     ErrorBLZDecompressionFailed,
     ErrorBadINIHeader,
     ErrorINITooManyKIPs,
+    ErrorIntegrityVerificationNotImplemented,
+    ErrorIntegrityVerificationFailed,
 };
 
 std::string GetResultStatusString(ResultStatus status);
@@ -169,6 +172,13 @@ public:
      */
     virtual LoadResult Load(Kernel::KProcess& process, Core::System& system) = 0;
 
+    /**
+     * Try to verify the integrity of the file.
+     */
+    virtual ResultStatus VerifyIntegrity(std::function<bool(size_t, size_t)> progress_callback) {
+        return ResultStatus::ErrorIntegrityVerificationNotImplemented;
+    }
+
     /**
      * Get the code (typically .code section) of the application
      *

src/core/loader/nca.cpp

@@ -3,6 +3,8 @@
 
 #include <utility>
 
+#include "common/hex_util.h"
+#include "common/scope_exit.h"
 #include "core/core.h"
 #include "core/file_sys/content_archive.h"
 #include "core/file_sys/nca_metadata.h"
@@ -12,6 +14,7 @@
 #include "core/hle/service/filesystem/filesystem.h"
 #include "core/loader/deconstructed_rom_directory.h"
 #include "core/loader/nca.h"
+#include "mbedtls/sha256.h"
 
 namespace Loader {
 
@@ -80,6 +83,79 @@ AppLoader_NCA::LoadResult AppLoader_NCA::Load(Kernel::KProcess& process, Core::S
     return load_result;
 }
 
+ResultStatus AppLoader_NCA::VerifyIntegrity(std::function<bool(size_t, size_t)> progress_callback) {
+    using namespace Common::Literals;
+
+    constexpr size_t NcaFileNameWithHashLength = 36;
+    constexpr size_t NcaFileNameHashLength = 32;
+    constexpr size_t NcaSha256HashLength = 32;
+    constexpr size_t NcaSha256HalfHashLength = NcaSha256HashLength / 2;
+
+    // Get the file name.
+    const auto name = file->GetName();
+
+    // We won't try to verify meta NCAs.
+    if (name.ends_with(".cnmt.nca")) {
+        return ResultStatus::Success;
+    }
+
+    // Check if we can verify this file. NCAs should be named after their hashes.
+    if (!name.ends_with(".nca") || name.size() != NcaFileNameWithHashLength) {
+        LOG_WARNING(Loader, "Unable to validate NCA with name {}", name);
+        return ResultStatus::ErrorIntegrityVerificationNotImplemented;
+    }
+
+    // Get the expected truncated hash of the NCA.
+    const auto input_hash =
+        Common::HexStringToVector(file->GetName().substr(0, NcaFileNameHashLength), false);
+
+    // Declare buffer to read into.
+    std::vector<u8> buffer(4_MiB);
+
+    // Initialize sha256 verification context.
+    mbedtls_sha256_context ctx;
+    mbedtls_sha256_init(&ctx);
+    mbedtls_sha256_starts_ret(&ctx, 0);
+
+    // Ensure we maintain a clean state on exit.
+    SCOPE_EXIT({ mbedtls_sha256_free(&ctx); });
+
+    // Declare counters.
+    const size_t total_size = file->GetSize();
+    size_t processed_size = 0;
+
+    // Begin iterating the file.
+    while (processed_size < total_size) {
+        // Refill the buffer.
+        const size_t intended_read_size = std::min(buffer.size(), total_size - processed_size);
+        const size_t read_size = file->Read(buffer.data(), intended_read_size, processed_size);
+
+        // Update the hash function with the buffer contents.
+        mbedtls_sha256_update_ret(&ctx, buffer.data(), read_size);
+
+        // Update counters.
+        processed_size += read_size;
+
+        // Call the progress function.
+        if (!progress_callback(processed_size, total_size)) {
+            return ResultStatus::ErrorIntegrityVerificationFailed;
+        }
+    }
+
+    // Finalize context and compute the output hash.
+    std::array<u8, NcaSha256HashLength> output_hash;
+    mbedtls_sha256_finish_ret(&ctx, output_hash.data());
+
+    // Compare to expected.
+    if (std::memcmp(input_hash.data(), output_hash.data(), NcaSha256HalfHashLength) != 0) {
+        LOG_ERROR(Loader, "NCA hash mismatch detected for file {}", name);
+        return ResultStatus::ErrorIntegrityVerificationFailed;
+    }
+
+    // File verified.
+    return ResultStatus::Success;
+}
+
 ResultStatus AppLoader_NCA::ReadRomFS(FileSys::VirtualFile& dir) {
     if (nca == nullptr) {
         return ResultStatus::ErrorNotInitialized;

src/core/loader/nca.h

@@ -39,6 +39,8 @@ public:
 
     LoadResult Load(Kernel::KProcess& process, Core::System& system) override;
 
+    ResultStatus VerifyIntegrity(std::function<bool(size_t, size_t)> progress_callback) override;
+
     ResultStatus ReadRomFS(FileSys::VirtualFile& dir) override;
     ResultStatus ReadProgramId(u64& out_program_id) override;
 

src/core/loader/nsp.cpp

@@ -117,6 +117,42 @@ AppLoader_NSP::LoadResult AppLoader_NSP::Load(Kernel::KProcess& process, Core::S
     return result;
 }
 
+ResultStatus AppLoader_NSP::VerifyIntegrity(std::function<bool(size_t, size_t)> progress_callback) {
+    // Extracted-type NSPs can't be verified.
+    if (nsp->IsExtractedType()) {
+        return ResultStatus::ErrorIntegrityVerificationNotImplemented;
+    }
+
+    // Get list of all NCAs.
+    const auto ncas = nsp->GetNCAsCollapsed();
+
+    size_t total_size = 0;
+    size_t processed_size = 0;
+
+    // Loop over NCAs, collecting the total size to verify.
+    for (const auto& nca : ncas) {
+        total_size += nca->GetBaseFile()->GetSize();
+    }
+
+    // Loop over NCAs again, verifying each.
+    for (const auto& nca : ncas) {
+        AppLoader_NCA loader_nca(nca->GetBaseFile());
+
+        const auto NcaProgressCallback = [&](size_t nca_processed_size, size_t nca_total_size) {
+            return progress_callback(processed_size + nca_processed_size, total_size);
+        };
+
+        const auto verification_result = loader_nca.VerifyIntegrity(NcaProgressCallback);
+        if (verification_result != ResultStatus::Success) {
+            return verification_result;
+        }
+
+        processed_size += nca->GetBaseFile()->GetSize();
+    }
+
+    return ResultStatus::Success;
+}
+
 ResultStatus AppLoader_NSP::ReadRomFS(FileSys::VirtualFile& out_file) {
     return secondary_loader->ReadRomFS(out_file);
 }

src/core/loader/nsp.h

@@ -45,6 +45,8 @@ public:
 
     LoadResult Load(Kernel::KProcess& process, Core::System& system) override;
 
+    ResultStatus VerifyIntegrity(std::function<bool(size_t, size_t)> progress_callback) override;
+
     ResultStatus ReadRomFS(FileSys::VirtualFile& out_file) override;
     ResultStatus ReadUpdateRaw(FileSys::VirtualFile& out_file) override;
     ResultStatus ReadProgramId(u64& out_program_id) override;

src/core/loader/xci.cpp

@@ -85,6 +85,40 @@ AppLoader_XCI::LoadResult AppLoader_XCI::Load(Kernel::KProcess& process, Core::S
     return result;
 }
 
+ResultStatus AppLoader_XCI::VerifyIntegrity(std::function<bool(size_t, size_t)> progress_callback) {
+    // Verify secure partition, as it is the only thing we can process.
+    auto secure_partition = xci->GetSecurePartitionNSP();
+
+    // Get list of all NCAs.
+    const auto ncas = secure_partition->GetNCAsCollapsed();
+
+    size_t total_size = 0;
+    size_t processed_size = 0;
+
+    // Loop over NCAs, collecting the total size to verify.
+    for (const auto& nca : ncas) {
+        total_size += nca->GetBaseFile()->GetSize();
+    }
+
+    // Loop over NCAs again, verifying each.
+    for (const auto& nca : ncas) {
+        AppLoader_NCA loader_nca(nca->GetBaseFile());
+
+        const auto NcaProgressCallback = [&](size_t nca_processed_size, size_t nca_total_size) {
+            return progress_callback(processed_size + nca_processed_size, total_size);
+        };
+
+        const auto verification_result = loader_nca.VerifyIntegrity(NcaProgressCallback);
+        if (verification_result != ResultStatus::Success) {
+            return verification_result;
+        }
+
+        processed_size += nca->GetBaseFile()->GetSize();
+    }
+
+    return ResultStatus::Success;
+}
+
 ResultStatus AppLoader_XCI::ReadRomFS(FileSys::VirtualFile& out_file) {
     return nca_loader->ReadRomFS(out_file);
 }

src/core/loader/xci.h

@@ -45,6 +45,8 @@ public:
 
     LoadResult Load(Kernel::KProcess& process, Core::System& system) override;
 
+    ResultStatus VerifyIntegrity(std::function<bool(size_t, size_t)> progress_callback) override;
+
     ResultStatus ReadRomFS(FileSys::VirtualFile& out_file) override;
     ResultStatus ReadUpdateRaw(FileSys::VirtualFile& out_file) override;
     ResultStatus ReadProgramId(u64& out_program_id) override;

src/yuzu/game_list.cpp

@@ -561,6 +561,7 @@ void GameList::AddGamePopup(QMenu& context_menu, u64 program_id, const std::stri
     QMenu* dump_romfs_menu = context_menu.addMenu(tr("Dump RomFS"));
     QAction* dump_romfs = dump_romfs_menu->addAction(tr("Dump RomFS"));
     QAction* dump_romfs_sdmc = dump_romfs_menu->addAction(tr("Dump RomFS to SDMC"));
+    QAction* verify_integrity = context_menu.addAction(tr("Verify Integrity"));
     QAction* copy_tid = context_menu.addAction(tr("Copy Title ID to Clipboard"));
     QAction* navigate_to_gamedb_entry = context_menu.addAction(tr("Navigate to GameDB entry"));
 #ifndef WIN32
@@ -634,6 +635,8 @@ void GameList::AddGamePopup(QMenu& context_menu, u64 program_id, const std::stri
     connect(dump_romfs_sdmc, &QAction::triggered, [this, program_id, path]() {
         emit DumpRomFSRequested(program_id, path, DumpRomFSTarget::SDMC);
     });
+    connect(verify_integrity, &QAction::triggered,
+            [this, path]() { emit VerifyIntegrityRequested(path); });
     connect(copy_tid, &QAction::triggered,
             [this, program_id]() { emit CopyTIDRequested(program_id); });
     connect(navigate_to_gamedb_entry, &QAction::triggered, [this, program_id]() {

src/yuzu/game_list.h

@@ -117,6 +117,7 @@ signals:
                              const std::string& game_path);
     void RemovePlayTimeRequested(u64 program_id);
     void DumpRomFSRequested(u64 program_id, const std::string& game_path, DumpRomFSTarget target);
+    void VerifyIntegrityRequested(const std::string& game_path);
     void CopyTIDRequested(u64 program_id);
     void CreateShortcut(u64 program_id, const std::string& game_path,
                         GameListShortcutTarget target);

src/yuzu/main.cpp

@@ -1457,6 +1457,8 @@ void GMainWindow::ConnectWidgetEvents() {
     connect(game_list, &GameList::RemovePlayTimeRequested, this,
             &GMainWindow::OnGameListRemovePlayTimeData);
     connect(game_list, &GameList::DumpRomFSRequested, this, &GMainWindow::OnGameListDumpRomFS);
+    connect(game_list, &GameList::VerifyIntegrityRequested, this,
+            &GMainWindow::OnGameListVerifyIntegrity);
     connect(game_list, &GameList::CopyTIDRequested, this, &GMainWindow::OnGameListCopyTID);
     connect(game_list, &GameList::NavigateToGamedbEntryRequested, this,
             &GMainWindow::OnGameListNavigateToGamedbEntry);
@@ -2729,6 +2731,54 @@ void GMainWindow::OnGameListDumpRomFS(u64 program_id, const std::string& game_pa
     }
 }
 
+void GMainWindow::OnGameListVerifyIntegrity(const std::string& game_path) {
+    const auto NotImplemented = [this] {
+        QMessageBox::warning(this, tr("Integrity verification couldn't be performed!"),
+                             tr("File contents were not checked for validity."));
+    };
+    const auto Failed = [this] {
+        QMessageBox::critical(this, tr("Integrity verification failed!"),
+                              tr("File contents may be corrupt."));
+    };
+
+    const auto loader = Loader::GetLoader(*system, vfs->OpenFile(game_path, FileSys::Mode::Read));
+    if (loader == nullptr) {
+        NotImplemented();
+        return;
+    }
+
+    QProgressDialog progress(tr("Verifying integrity..."), tr("Cancel"), 0, 100, this);
+    progress.setWindowModality(Qt::WindowModal);
+    progress.setMinimumDuration(100);
+    progress.setAutoClose(false);
+    progress.setAutoReset(false);
+
+    const auto QtProgressCallback = [&](size_t processed_size, size_t total_size) {
+        if (progress.wasCanceled()) {
+            return false;
+        }
+
+        progress.setValue(static_cast<int>((processed_size * 100) / total_size));
+        return true;
+    };
+
+    const auto status = loader->VerifyIntegrity(QtProgressCallback);
+    if (progress.wasCanceled() ||
+        status == Loader::ResultStatus::ErrorIntegrityVerificationNotImplemented) {
+        NotImplemented();
+        return;
+    }
+
+    if (status == Loader::ResultStatus::ErrorIntegrityVerificationFailed) {
+        Failed();
+        return;
+    }
+
+    progress.close();
+    QMessageBox::information(this, tr("Integrity verification succeeded!"),
+                             tr("The operation completed successfully."));
+}
+
 void GMainWindow::OnGameListCopyTID(u64 program_id) {
     QClipboard* clipboard = QGuiApplication::clipboard();
     clipboard->setText(QString::fromStdString(fmt::format("{:016X}", program_id)));

src/yuzu/main.h

@@ -318,6 +318,7 @@ private slots:
                               const std::string& game_path);
     void OnGameListRemovePlayTimeData(u64 program_id);
     void OnGameListDumpRomFS(u64 program_id, const std::string& game_path, DumpRomFSTarget target);
+    void OnGameListVerifyIntegrity(const std::string& game_path);
     void OnGameListCopyTID(u64 program_id);
     void OnGameListNavigateToGamedbEntry(u64 program_id,
                                          const CompatibilityList& compatibility_list);