hid: Implement DeactivateNpad

Makes use of the already existing DeactivateController function.

.ci/scripts/linux/docker.sh

@@ -5,10 +5,11 @@ cd /yuzu
 ccache -s
 
 mkdir build || true && cd build
-cmake .. -G Ninja -DYUZU_USE_BUNDLED_UNICORN=ON -DYUZU_USE_QT_WEB_ENGINE=ON -DCMAKE_BUILD_TYPE=Release -DCMAKE_C_COMPILER=/usr/lib/ccache/gcc -DCMAKE_CXX_COMPILER=/usr/lib/ccache/g++ -DYUZU_ENABLE_COMPATIBILITY_REPORTING=${ENABLE_COMPATIBILITY_REPORTING:-"OFF"} -DENABLE_COMPATIBILITY_LIST_DOWNLOAD=ON -DUSE_DISCORD_PRESENCE=ON
+cmake .. -G Ninja -DDISPLAY_VERSION=$1 -DYUZU_USE_BUNDLED_UNICORN=ON -DYUZU_USE_QT_WEB_ENGINE=ON -DCMAKE_BUILD_TYPE=Release -DCMAKE_C_COMPILER=/usr/lib/ccache/gcc -DCMAKE_CXX_COMPILER=/usr/lib/ccache/g++ -DYUZU_ENABLE_COMPATIBILITY_REPORTING=${ENABLE_COMPATIBILITY_REPORTING:-"OFF"} -DENABLE_COMPATIBILITY_LIST_DOWNLOAD=ON -DUSE_DISCORD_PRESENCE=ON
 
 ninja
 
 ccache -s
 
-ctest -VV -C Release
+# Ignore zlib's tests, since they aren't gated behind a CMake option.
+ctest -VV -E "(example|example64)" -C Release

.ci/scripts/linux/exec.sh

@@ -2,4 +2,4 @@
 
 mkdir -p "ccache"  || true
 chmod a+x ./.ci/scripts/linux/docker.sh
-docker run -e ENABLE_COMPATIBILITY_REPORTING -e CCACHE_DIR=/yuzu/ccache -v $(pwd):/yuzu yuzuemu/build-environments:linux-fresh /bin/bash /yuzu/.ci/scripts/linux/docker.sh
+docker run -e ENABLE_COMPATIBILITY_REPORTING -e CCACHE_DIR=/yuzu/ccache -v $(pwd):/yuzu yuzuemu/build-environments:linux-fresh /bin/bash /yuzu/.ci/scripts/linux/docker.sh $1

.ci/scripts/merge/apply-patches-by-label-private.py

@@ -0,0 +1,45 @@
+# Download all pull requests as patches that match a specific label
+# Usage: python download-patches-by-label.py <Label to Match> <Root Path Folder to DL to>
+
+import requests, sys, json, shutil, subprocess, os, traceback
+
+org = os.getenv("PRIVATEMERGEORG", "yuzu-emu")
+repo = os.getenv("PRIVATEMERGEREPO", "yuzu-private")
+tagline = sys.argv[3]
+user = sys.argv[1]
+
+dl_list = {}
+
+TAG_NAME = sys.argv[2]
+
+def check_individual(repo_id, pr_id):
+    url = 'https://%sdev.azure.com/%s/%s/_apis/git/repositories/%s/pullRequests/%s/labels?api-version=5.1-preview.1' % (user, org, repo, repo_id, pr_id)
+    response = requests.get(url)
+    if (response.ok):
+        try:
+            js = response.json()
+            return any(tag.get('name') == TAG_NAME for tag in js['value'])
+        except:
+            return False
+    return False
+
+def merge_pr(pn, ref):
+    print("Matched PR# %s" % pn)
+    print(subprocess.check_output(["git", "fetch", "https://%sdev.azure.com/%s/_git/%s" % (user, org, repo), ref, "-f"]))
+    print(subprocess.check_output(["git", "merge", "--squash", 'origin/' + ref.replace('refs/heads/','')]))
+    print(subprocess.check_output(["git", "commit", "-m\"Merge %s PR %s\"" % (tagline, pn)]))
+
+def main():
+    url = 'https://%sdev.azure.com/%s/%s/_apis/git/pullrequests?api-version=5.1' % (user, org, repo)
+    response = requests.get(url)
+    if (response.ok):
+        js = response.json()
+        tagged_prs = filter(lambda pr: check_individual(pr['repository']['id'], pr['pullRequestId']), js['value'])
+        map(lambda pr: merge_pr(pr['pullRequestId'], pr['sourceRefName']), tagged_prs)
+
+if __name__ == '__main__':
+    try:
+        main()
+    except:
+        traceback.print_exc(file=sys.stdout)
+        sys.exit(-1)

.ci/scripts/merge/apply-patches-by-label.py

@@ -1,7 +1,9 @@
 # Download all pull requests as patches that match a specific label
 # Usage: python download-patches-by-label.py <Label to Match> <Root Path Folder to DL to>
 
-import requests, sys, json, urllib3.request, shutil, subprocess
+import requests, sys, json, urllib3.request, shutil, subprocess, os
+
+tagline = sys.argv[2]
 
 http = urllib3.PoolManager()
 dl_list = {}
@@ -12,17 +14,23 @@ def check_individual(labels):
             return True
     return False
 
-try:
-    url = 'https://api.github.com/repos/yuzu-emu/yuzu/pulls'
+def do_page(page):
+    url = 'https://api.github.com/repos/yuzu-emu/yuzu/pulls?page=%s' % page
     response = requests.get(url)
     if (response.ok):
         j = json.loads(response.content)
+        if j == []:
+            return
         for pr in j:
             if (check_individual(pr["labels"])):
                 pn = pr["number"]
                 print("Matched PR# %s" % pn)
                 print(subprocess.check_output(["git", "fetch", "https://github.com/yuzu-emu/yuzu.git", "pull/%s/head:pr-%s" % (pn, pn), "-f"]))
                 print(subprocess.check_output(["git", "merge", "--squash", "pr-%s" % pn]))
-                print(subprocess.check_output(["git", "commit", "-m\"Merge PR %s\"" % pn]))
+                print(subprocess.check_output(["git", "commit", "-m\"Merge %s PR %s\"" % (tagline, pn)]))
+
+try:
+    for i in range(1,30):
+        do_page(i)
 except:
     sys.exit(-1)

.ci/scripts/windows/docker.sh

@@ -13,7 +13,7 @@ echo '' >> /bin/cmd
 chmod +x /bin/cmd
 
 mkdir build || true && cd build
-cmake .. -G Ninja -DCMAKE_TOOLCHAIN_FILE="$(pwd)/../CMakeModules/MinGWCross.cmake" -DUSE_CCACHE=ON -DYUZU_USE_BUNDLED_UNICORN=ON -DENABLE_COMPATIBILITY_LIST_DOWNLOAD=ON -DCMAKE_BUILD_TYPE=Release
+cmake .. -G Ninja -DDISPLAY_VERSION=$1 -DCMAKE_TOOLCHAIN_FILE="$(pwd)/../CMakeModules/MinGWCross.cmake" -DUSE_CCACHE=ON -DYUZU_USE_BUNDLED_UNICORN=ON -DENABLE_COMPATIBILITY_LIST_DOWNLOAD=ON -DCMAKE_BUILD_TYPE=Release
 ninja
 
 # Clean up the dirty hacks

.ci/scripts/windows/exec.sh

@@ -2,4 +2,4 @@
 
 mkdir -p "ccache" || true
 chmod a+x ./.ci/scripts/windows/docker.sh
-docker run -e CCACHE_DIR=/yuzu/ccache -v $(pwd):/yuzu yuzuemu/build-environments:linux-mingw /bin/bash -ex /yuzu/.ci/scripts/windows/docker.sh
+docker run -e CCACHE_DIR=/yuzu/ccache -v $(pwd):/yuzu yuzuemu/build-environments:linux-mingw /bin/bash -ex /yuzu/.ci/scripts/windows/docker.sh $1

.ci/scripts/windows/upload.ps1

@@ -0,0 +1,32 @@
+$GITDATE = $(git show -s --date=short --format='%ad') -replace "-",""
+$GITREV = $(git show -s --format='%h')
+$RELEASE_DIST = "yuzu-windows-msvc"
+
+$MSVC_BUILD_ZIP = "yuzu-windows-msvc-$GITDATE-$GITREV.zip" -replace " ", ""
+$MSVC_BUILD_PDB = "yuzu-windows-msvc-$GITDATE-$GITREV-debugsymbols.zip" -replace " ", ""
+$MSVC_SEVENZIP = "yuzu-windows-msvc-$GITDATE-$GITREV.7z" -replace " ", ""
+
+$env:BUILD_ZIP = $MSVC_BUILD_ZIP
+$env:BUILD_SYMBOLS = $MSVC_BUILD_PDB
+$env:BUILD_UPDATE = $MSVC_SEVENZIP
+
+$BUILD_DIR = ".\build\bin\Release"
+
+mkdir pdb
+Get-ChildItem "$BUILD_DIR\" -Recurse -Filter "*.pdb" | Copy-Item -destination .\pdb
+7z a -tzip $MSVC_BUILD_PDB .\pdb\*.pdb
+rm "$BUILD_DIR\*.pdb"
+mkdir $RELEASE_DIST
+mkdir "artifacts"
+
+Copy-Item "$BUILD_DIR\*" -Destination $RELEASE_DIST -Recurse
+rm "$RELEASE_DIST\*.exe"
+Get-ChildItem "$BUILD_DIR" -Recurse -Filter "yuzu*.exe" | Copy-Item -destination $RELEASE_DIST
+Get-ChildItem "$BUILD_DIR" -Recurse -Filter "QtWebEngineProcess*.exe" | Copy-Item -destination $RELEASE_DIST
+Copy-Item .\license.txt -Destination $RELEASE_DIST
+Copy-Item .\README.md -Destination $RELEASE_DIST
+7z a -tzip $MSVC_BUILD_ZIP $RELEASE_DIST\*
+7z a $MSVC_SEVENZIP $RELEASE_DIST
+
+Get-ChildItem . -Filter "*.zip" | Copy-Item -destination "artifacts"
+Get-ChildItem . -Filter "*.7z" | Copy-Item -destination "artifacts"

.ci/templates/build-msvc.yml

@@ -0,0 +1,22 @@
+parameters:
+  artifactSource: 'true'
+  cache: 'false'
+  version: ''
+
+steps:
+- script: mkdir build && cd build && cmake -G "Visual Studio 15 2017 Win64" --config Release -DYUZU_USE_BUNDLED_QT=1 -DYUZU_USE_BUNDLED_SDL2=1 -DYUZU_USE_BUNDLED_UNICORN=1 -DYUZU_USE_QT_WEB_ENGINE=ON -DENABLE_COMPATIBILITY_LIST_DOWNLOAD=ON -DYUZU_ENABLE_COMPATIBILITY_REPORTING=${COMPAT} -DUSE_DISCORD_PRESENCE=ON -DDISPLAY_VERSION=${{ parameters['version'] }} .. && cd ..
+  displayName: 'Configure CMake'
+- task: MSBuild@1
+  displayName: 'Build'
+  inputs:
+    solution: 'build/yuzu.sln'
+    maximumCpuCount: true
+    configuration: release
+- task: PowerShell@2
+  displayName: 'Package Artifacts'
+  inputs:
+    targetType: 'filePath'
+    filePath: './.ci/scripts/windows/upload.ps1'
+- publish: artifacts
+  artifact: 'yuzu-$(BuildName)-windows-msvc'
+  displayName: 'Upload Artifacts'

.ci/templates/build-single.yml

@@ -1,10 +1,9 @@
 parameters:
   artifactSource: 'true'
   cache: 'false'
+  version: ''
 
 steps:
-- script: export DATE=`date '+%Y.%m.%d'` && export CI=true && AZURE_REPO_NAME=yuzu-emu/yuzu-$(BuildName) && AZURE_REPO_TAG=$(BuildName)-$DATE
-  displayName: 'Determine Build Name'
 - task: DockerInstaller@0
   displayName: 'Prepare Environment'
   inputs:
@@ -15,7 +14,7 @@ steps:
     key: yuzu-v1-$(BuildName)-$(BuildSuffix)-$(CacheSuffix)
     path: $(System.DefaultWorkingDirectory)/ccache
     cacheHitVar: CACHE_RESTORED
-- script: chmod a+x ./.ci/scripts/$(ScriptFolder)/exec.sh && ./.ci/scripts/$(ScriptFolder)/exec.sh
+- script: chmod a+x ./.ci/scripts/$(ScriptFolder)/exec.sh && ./.ci/scripts/$(ScriptFolder)/exec.sh ${{ parameters['version'] }}
   displayName: 'Build'
 - script: chmod a+x ./.ci/scripts/$(ScriptFolder)/upload.sh && RELEASE_NAME=$(BuildName) ./.ci/scripts/$(ScriptFolder)/upload.sh
   displayName: 'Package Artifacts'

.ci/templates/build-standard.yml

@@ -1,3 +1,6 @@
+parameters:
+  version: ''
+
 jobs:
 - job: build
   displayName: 'standard'
@@ -20,4 +23,5 @@ jobs:
   - template: ./build-single.yml
     parameters:
       artifactSource: 'false'
-      cache: $(parameters.cache)
+      cache: $(parameters.cache)
+      version: $(parameters.version)

.ci/templates/build-testing.yml

@@ -1,3 +1,6 @@
+parameters:
+  version: ''
+
 jobs:
 - job: build_test
   displayName: 'testing'
@@ -31,3 +34,4 @@ jobs:
       parameters:
         artifactSource: 'false'
         cache: 'false'
+        version: $(parameters.version)

.ci/templates/merge-private.yml

@@ -0,0 +1,47 @@
+jobs:
+- job: merge
+  displayName: 'pull requests'
+  steps:
+  - checkout: self
+    submodules: recursive
+  - template: ./mergebot-private.yml
+    parameters:
+      matchLabel: '$(BuildName)-merge'
+      matchLabelPublic: '$(PublicBuildName)-merge'
+  - task: ArchiveFiles@2
+    displayName: 'Package Source'
+    inputs:
+      rootFolderOrFile: '$(System.DefaultWorkingDirectory)'
+      includeRootFolder: false
+      archiveType: '7z'
+      archiveFile: '$(Build.ArtifactStagingDirectory)/yuzu-$(BuildName)-source.7z'
+  - task: PublishPipelineArtifact@1
+    displayName: 'Upload Artifacts'
+    inputs:
+      targetPath: '$(Build.ArtifactStagingDirectory)/yuzu-$(BuildName)-source.7z'
+      artifact: 'yuzu-$(BuildName)-source'
+      replaceExistingArchive: true
+- job: upload_source
+  displayName: 'upload'
+  dependsOn: merge
+  steps:
+  - template: ./sync-source.yml
+    parameters:
+      artifactSource: 'true'
+      needSubmodules: 'true'
+  - script: chmod a+x $(System.DefaultWorkingDirectory)/.ci/scripts/merge/yuzubot-git-config.sh && $(System.DefaultWorkingDirectory)/.ci/scripts/merge/yuzubot-git-config.sh
+    displayName: 'Apply Git Configuration'
+  - script: git tag -a $(BuildName)-$(Build.BuildId) -m "yuzu $(BuildName) $(Build.BuildNumber) $(Build.DefinitionName)"
+    displayName: 'Tag Source'
+  - script: git remote add other $(GitRepoPushChangesURL)
+    displayName: 'Register Repository'
+  - script: git push --follow-tags --force other HEAD:$(GitPushBranch)
+    displayName: 'Update Code'
+  - script: git rev-list -n 1 $(BuildName)-$(Build.BuildId) > $(Build.ArtifactStagingDirectory)/tag-commit.sha
+    displayName: 'Calculate Release Point'
+  - task: PublishPipelineArtifact@1
+    displayName: 'Upload Release Point'
+    inputs:
+      targetPath: '$(Build.ArtifactStagingDirectory)/tag-commit.sha'
+      artifact: 'yuzu-$(BuildName)-release-point'
+      replaceExistingArchive: true

.ci/templates/mergebot-private.yml

@@ -0,0 +1,30 @@
+parameters:
+  matchLabel: 'dummy-merge'
+  matchLabelPublic: 'dummy-merge'
+
+steps:
+  - script: mkdir $(System.DefaultWorkingDirectory)/patches && pip install requests urllib3
+    displayName: 'Prepare Environment'
+  - script: chmod a+x $(System.DefaultWorkingDirectory)/.ci/scripts/merge/yuzubot-git-config.sh && $(System.DefaultWorkingDirectory)/.ci/scripts/merge/yuzubot-git-config.sh
+    displayName: 'Apply Git Configuration'
+  - task: PythonScript@0
+    displayName: 'Discover, Download, and Apply Patches (Mainline)'
+    inputs:
+      scriptSource: 'filePath'
+      scriptPath: '.ci/scripts/merge/apply-patches-by-label.py'
+      arguments: '${{ parameters.matchLabelPublic }} $(MergeTaglinePublic) patches-public'
+      workingDirectory: '$(System.DefaultWorkingDirectory)'
+  - task: PythonScript@0
+    displayName: 'Discover, Download, and Apply Patches (Patreon Public)'
+    inputs:
+      scriptSource: 'filePath'
+      scriptPath: '.ci/scripts/merge/apply-patches-by-label.py'
+      arguments: '${{ parameters.matchLabel }} "$(MergeTaglinePrivate) Public" patches-mixed-public'
+      workingDirectory: '$(System.DefaultWorkingDirectory)'
+  - task: PythonScript@0
+    displayName: 'Discover, Download, and Apply Patches (Patreon Private)'
+    inputs:
+      scriptSource: 'filePath'
+      scriptPath: '.ci/scripts/merge/apply-patches-by-label-private.py'
+      arguments: '$(PrivateMergeUser) ${{ parameters.matchLabel }} "$(MergeTaglinePrivate) Private" patches-private'
+      workingDirectory: '$(System.DefaultWorkingDirectory)'

.ci/templates/mergebot.yml

@@ -11,5 +11,5 @@ steps:
     inputs:
       scriptSource: 'filePath'
       scriptPath: '.ci/scripts/merge/apply-patches-by-label.py'
-      arguments: '${{ parameters.matchLabel }} patches'
+      arguments: '${{ parameters.matchLabel }} Tagged patches'
       workingDirectory: '$(System.DefaultWorkingDirectory)'

.ci/templates/release-download.yml

@@ -2,7 +2,7 @@ steps:
   - task: DownloadPipelineArtifact@2
     displayName: 'Download Windows Release'
     inputs:
-      artifactName: 'yuzu-$(BuildName)-windows-mingw'
+      artifactName: 'yuzu-$(BuildName)-windows-msvc'
       buildType: 'current'
       targetPath: '$(Build.ArtifactStagingDirectory)'
   - task: DownloadPipelineArtifact@2

.ci/yuzu-mainline-step2.yml

@@ -1,6 +1,9 @@
 trigger:
 - master
 
+variables:
+  DisplayVersion: $[counter(variables['DisplayPrefix'], 1)]
+
 stages:
 - stage: format
   displayName: 'format'
@@ -15,12 +18,49 @@ stages:
   dependsOn: format
   displayName: 'build'
   jobs:
-  - template: ./templates/build-standard.yml
-    parameters:
-      cache: 'true'
+  - job: build
+    displayName: 'standard'
+    pool:
+      vmImage: ubuntu-latest
+    strategy:
+      maxParallel: 10
+      matrix:
+        linux:
+          BuildSuffix: 'linux'
+          ScriptFolder: 'linux'
+    steps:
+    - template: ./templates/sync-source.yml
+      parameters:
+        artifactSource: $(parameters.artifactSource)
+        needSubmodules: 'true'
+    - template: ./templates/build-single.yml
+      parameters:
+        artifactSource: 'false'
+        cache: 'true'
+        version: $(DisplayVersion)
+- stage: build_win
+  dependsOn: format
+  displayName: 'build-windows'
+  jobs:
+  - job: build
+    displayName: 'msvc'
+    pool:
+      vmImage: vs2017-win2016
+    steps:
+    - template: ./templates/sync-source.yml
+      parameters:
+        artifactSource: $(parameters.artifactSource)
+        needSubmodules: 'true'
+    - template: ./templates/build-msvc.yml
+      parameters:
+        artifactSource: 'false'
+        cache: 'true'
+        version: $(DisplayVersion)
 - stage: release
   displayName: 'Release'
-  dependsOn: build
+  dependsOn:
+  - build
+  - build_win
   jobs:
   - job: github
     displayName: 'GitHub Release'

.ci/yuzu-patreon-step1.yml

@@ -0,0 +1,8 @@
+trigger:
+- master
+
+stages:
+- stage: merge
+  displayName: 'merge'
+  jobs:
+  - template: ./templates/merge-private.yml

.ci/yuzu-patreon-step2.yml

@@ -0,0 +1,34 @@
+trigger:
+- master
+
+variables:
+  DisplayVersion: $[counter(variables['DisplayPrefix'], 1)]
+
+stages:
+- stage: format
+  displayName: 'format'
+  jobs:
+  - job: format
+    displayName: 'clang'
+    pool:
+      vmImage: ubuntu-latest
+    steps:
+    - template: ./templates/format-check.yml
+- stage: build
+  dependsOn: format
+  displayName: 'build'
+  jobs:
+  - job: build
+    displayName: 'windows-msvc'
+    pool:
+      vmImage: vs2017-win2016
+    steps:
+    - template: ./templates/sync-source.yml
+      parameters:
+        artifactSource: $(parameters.artifactSource)
+        needSubmodules: 'true'
+    - template: ./templates/build-msvc.yml
+      parameters:
+        artifactSource: 'false'
+        cache: $(parameters.cache)
+        version: $(DisplayVersion)

.ci/yuzu-patreon.yml

@@ -1,19 +0,0 @@
-# Starter pipeline
-# Start with a minimal pipeline that you can customize to build and deploy your code.
-# Add steps that build, run tests, deploy, and more:
-# https://aka.ms/yaml
-
-trigger:
-- master
-
-pool:
-  vmImage: 'ubuntu-latest'
-
-steps:
-- script: echo Hello, world!
-  displayName: 'Run a one-line script'
-
-- script: |
-    echo Add other tasks to build, test, and deploy your project.
-    echo See https://aka.ms/yaml
-  displayName: 'Run a multi-line script'

.gitmodules

@@ -46,3 +46,9 @@
 [submodule "sirit"]
     path = externals/sirit
     url = https://github.com/ReinUsesLisp/sirit
+[submodule "libzip"]
+    path = externals/libzip
+    url = https://github.com/DarkLordZach/libzip
+[submodule "zlib"]
+    path = externals/zlib
+    url = https://github.com/madler/zlib

CMakeLists.txt

@@ -21,6 +21,8 @@ option(YUZU_USE_BUNDLED_UNICORN "Build/Download bundled Unicorn" ON)
 
 option(YUZU_USE_QT_WEB_ENGINE "Use QtWebEngine for web applet implementation" OFF)
 
+option(YUZU_ENABLE_BOXCAT "Enable the Boxcat service, a yuzu high-level implementation of BCAT" ON)
+
 option(ENABLE_CUBEB "Enables the cubeb audio backend" ON)
 
 option(ENABLE_VULKAN "Enables Vulkan backend" ON)

CMakeModules/GenerateSCMRev.cmake

@@ -83,9 +83,15 @@ set(HASH_FILES
     "${VIDEO_CORE}/shader/decode/video.cpp"
     "${VIDEO_CORE}/shader/decode/warp.cpp"
     "${VIDEO_CORE}/shader/decode/xmad.cpp"
+    "${VIDEO_CORE}/shader/ast.cpp"
+    "${VIDEO_CORE}/shader/ast.h"
     "${VIDEO_CORE}/shader/control_flow.cpp"
     "${VIDEO_CORE}/shader/control_flow.h"
+    "${VIDEO_CORE}/shader/compiler_settings.cpp"
+    "${VIDEO_CORE}/shader/compiler_settings.h"
     "${VIDEO_CORE}/shader/decode.cpp"
+    "${VIDEO_CORE}/shader/expr.cpp"
+    "${VIDEO_CORE}/shader/expr.h"
     "${VIDEO_CORE}/shader/node.h"
     "${VIDEO_CORE}/shader/node_helper.cpp"
     "${VIDEO_CORE}/shader/node_helper.h"

README.md

@@ -1,7 +1,6 @@
 yuzu emulator
 =============
 [![Travis CI Build Status](https://travis-ci.org/yuzu-emu/yuzu.svg?branch=master)](https://travis-ci.org/yuzu-emu/yuzu)
-[![AppVeyor CI Build Status](https://ci.appveyor.com/api/projects/status/77k97svb2usreu68?svg=true)](https://ci.appveyor.com/project/bunnei/yuzu)
 [![Azure Mainline CI Build Status](https://dev.azure.com/yuzu-emu/yuzu/_apis/build/status/yuzu%20mainline?branchName=master)](https://dev.azure.com/yuzu-emu/yuzu/)
 
 yuzu is an experimental open-source emulator for the Nintendo Switch from the creators of [Citra](https://citra-emu.org/).

externals/CMakeLists.txt

@@ -77,6 +77,12 @@ if (ENABLE_VULKAN)
     add_subdirectory(sirit)
 endif()
 
+# zlib
+add_subdirectory(zlib EXCLUDE_FROM_ALL)
+
+# libzip
+add_subdirectory(libzip EXCLUDE_FROM_ALL)
+
 if (ENABLE_WEB_SERVICE)
     # LibreSSL
     set(LIBRESSL_SKIP_INSTALL ON CACHE BOOL "")

license.txt

@@ -341,15 +341,24 @@ Public License instead of this License.
 
 The icons used in this project have the following licenses:
 
-Icon Name                          | License       | Origin/Author
----                                | ---           | ---
-checked.png                        | Free for non-commercial use
-failed.png                         | Free for non-commercial use
-lock.png                           | CC BY-ND 3.0  | https://icons8.com
-plus_folder.png                    | CC BY-ND 3.0  | https://icons8.com
-bad_folder.png                     | CC BY-ND 3.0  | https://icons8.com
-chip.png                           | CC BY-ND 3.0  | https://icons8.com
-folder.png                         | CC BY-ND 3.0  | https://icons8.com
-plus.png (Default, Dark)           | CC0 1.0       | Designed by BreadFish64 from the Citra team
-plus.png (Colorful, Colorful Dark) | CC BY-ND 3.0  | https://icons8.com
-sd_card.png | CC BY-ND 3.0 | https://icons8.com
+Icon Name                                   | License       | Origin/Author
+---                                         | ---           | ---
+checked.png                                 | Free for non-commercial use
+failed.png                                  | Free for non-commercial use
+lock.png                                    | CC BY-ND 3.0  | https://icons8.com
+plus_folder.png (Default, Dark)             | CC BY-ND 3.0  | https://icons8.com
+bad_folder.png (Default, Dark)              | CC BY-ND 3.0  | https://icons8.com
+chip.png (Default, Dark)                    | CC BY-ND 3.0  | https://icons8.com
+folder.png (Default, Dark)                  | CC BY-ND 3.0  | https://icons8.com
+plus.png (Default, Dark)                    | CC0 1.0       | Designed by BreadFish64 from the Citra team
+sd_card.png (Default, Dark)                 | CC BY-ND 3.0  | https://icons8.com
+plus_folder.png (Colorful, Colorful Dark)   | CC BY-ND 3.0  | https://icons8.com
+bad_folder.png (Colorful, Colorful Dark)    | CC BY-ND 3.0  | https://icons8.com
+chip.png (Colorful, Colorful Dark)          | CC BY-ND 3.0  | https://icons8.com
+folder.png (Colorful, Colorful Dark)        | CC BY-ND 3.0  | https://icons8.com
+plus.png (Colorful, Colorful Dark)          | CC BY-ND 3.0  | https://icons8.com
+sd_card.png (Colorful, Colorful Dark)       | CC BY-ND 3.0  | https://icons8.com
+
+Note:
+Some icons are different in different themes, and they are separately listed
+only when they have different licenses/origins.

src/common/CMakeLists.txt

@@ -15,11 +15,23 @@ if (DEFINED ENV{CI})
     set(BUILD_TAG $ENV{AZURE_REPO_TAG})
   endif()
 endif()
+if (DEFINED ENV{TITLEBARFORMATIDLE})
+  set(TITLE_BAR_FORMAT_IDLE $ENV{TITLEBARFORMATIDLE})
+endif ()
+if (DEFINED ENV{TITLEBARFORMATRUNNING})
+  set(TITLE_BAR_FORMAT_RUNNING $ENV{TITLEBARFORMATRUNNING})
+endif ()
+if (DEFINED ENV{DISPLAYVERSION})
+  set(DISPLAY_VERSION $ENV{DISPLAYVERSION})
+endif ()
 add_custom_command(OUTPUT scm_rev.cpp
     COMMAND ${CMAKE_COMMAND}
       -DSRC_DIR="${CMAKE_SOURCE_DIR}"
       -DBUILD_REPOSITORY="${BUILD_REPOSITORY}"
+      -DTITLE_BAR_FORMAT_IDLE="${TITLE_BAR_FORMAT_IDLE}"
+      -DTITLE_BAR_FORMAT_RUNNING="${TITLE_BAR_FORMAT_RUNNING}"
       -DBUILD_TAG="${BUILD_TAG}"
+      -DBUILD_ID="${DISPLAY_VERSION}"
       -P "${CMAKE_SOURCE_DIR}/CMakeModules/GenerateSCMRev.cmake"
     DEPENDS
       # WARNING! It was too much work to try and make a common location for this list,
@@ -60,9 +72,15 @@ add_custom_command(OUTPUT scm_rev.cpp
       "${VIDEO_CORE}/shader/decode/video.cpp"
       "${VIDEO_CORE}/shader/decode/warp.cpp"
       "${VIDEO_CORE}/shader/decode/xmad.cpp"
+      "${VIDEO_CORE}/shader/ast.cpp"
+      "${VIDEO_CORE}/shader/ast.h"
       "${VIDEO_CORE}/shader/control_flow.cpp"
       "${VIDEO_CORE}/shader/control_flow.h"
+      "${VIDEO_CORE}/shader/compiler_settings.cpp"
+      "${VIDEO_CORE}/shader/compiler_settings.h"
       "${VIDEO_CORE}/shader/decode.cpp"
+      "${VIDEO_CORE}/shader/expr.cpp"
+      "${VIDEO_CORE}/shader/expr.h"
       "${VIDEO_CORE}/shader/node.h"
       "${VIDEO_CORE}/shader/node_helper.cpp"
       "${VIDEO_CORE}/shader/node_helper.h"

src/common/alignment.h

@@ -51,7 +51,17 @@ public:
     using reference = T&;
     using const_reference = const T&;
 
+    using propagate_on_container_copy_assignment = std::true_type;
+    using propagate_on_container_move_assignment = std::true_type;
+    using propagate_on_container_swap = std::true_type;
+    using is_always_equal = std::true_type;
+
 public:
+    constexpr AlignmentAllocator() noexcept = default;
+
+    template <typename T2>
+    constexpr AlignmentAllocator(const AlignmentAllocator<T2, Align>&) noexcept {}
+
     pointer address(reference r) noexcept {
         return std::addressof(r);
     }

src/common/file_util.cpp

@@ -713,7 +713,6 @@ const std::string& GetUserPath(UserPath path, const std::string& new_path) {
         case UserPath::RootDir:
             user_path = paths[UserPath::RootDir] + DIR_SEP;
             break;
-
         case UserPath::UserDir:
             user_path = paths[UserPath::RootDir] + DIR_SEP;
             paths[UserPath::ConfigDir] = user_path + CONFIG_DIR DIR_SEP;
@@ -721,6 +720,8 @@ const std::string& GetUserPath(UserPath path, const std::string& new_path) {
             paths[UserPath::SDMCDir] = user_path + SDMC_DIR DIR_SEP;
             paths[UserPath::NANDDir] = user_path + NAND_DIR DIR_SEP;
             break;
+        default:
+            break;
         }
     }
 

src/common/scm_rev.cpp.in

@@ -11,6 +11,9 @@
 #define BUILD_DATE   "@BUILD_DATE@"
 #define BUILD_FULLNAME "@BUILD_FULLNAME@"
 #define BUILD_VERSION "@BUILD_VERSION@"
+#define BUILD_ID "@BUILD_ID@"
+#define TITLE_BAR_FORMAT_IDLE "@TITLE_BAR_FORMAT_IDLE@"
+#define TITLE_BAR_FORMAT_RUNNING "@TITLE_BAR_FORMAT_RUNNING@"
 #define SHADER_CACHE_VERSION "@SHADER_CACHE_VERSION@"
 
 namespace Common {
@@ -22,6 +25,9 @@ const char g_build_name[]   = BUILD_NAME;
 const char g_build_date[]   = BUILD_DATE;
 const char g_build_fullname[] = BUILD_FULLNAME;
 const char g_build_version[]  = BUILD_VERSION;
+const char g_build_id[] = BUILD_ID;
+const char g_title_bar_format_idle[] = TITLE_BAR_FORMAT_IDLE;
+const char g_title_bar_format_running[] = TITLE_BAR_FORMAT_RUNNING;
 const char g_shader_cache_version[] = SHADER_CACHE_VERSION;
 
 } // namespace

src/common/scm_rev.h

@@ -13,6 +13,9 @@ extern const char g_build_name[];
 extern const char g_build_date[];
 extern const char g_build_fullname[];
 extern const char g_build_version[];
+extern const char g_build_id[];
+extern const char g_title_bar_format_idle[];
+extern const char g_title_bar_format_running[];
 extern const char g_shader_cache_version[];
 
 } // namespace Common

src/core/CMakeLists.txt

@@ -1,3 +1,9 @@
+if (YUZU_ENABLE_BOXCAT)
+    set(BCAT_BOXCAT_ADDITIONAL_SOURCES hle/service/bcat/backend/boxcat.cpp hle/service/bcat/backend/boxcat.h)
+else()
+    set(BCAT_BOXCAT_ADDITIONAL_SOURCES)
+endif()
+
 add_library(core STATIC
     arm/arm_interface.h
     arm/arm_interface.cpp
@@ -82,6 +88,8 @@ add_library(core STATIC
     file_sys/vfs_concat.h
     file_sys/vfs_layered.cpp
     file_sys/vfs_layered.h
+    file_sys/vfs_libzip.cpp
+    file_sys/vfs_libzip.h
     file_sys/vfs_offset.cpp
     file_sys/vfs_offset.h
     file_sys/vfs_real.cpp
@@ -241,6 +249,9 @@ add_library(core STATIC
     hle/service/audio/errors.h
     hle/service/audio/hwopus.cpp
     hle/service/audio/hwopus.h
+    hle/service/bcat/backend/backend.cpp
+    hle/service/bcat/backend/backend.h
+    ${BCAT_BOXCAT_ADDITIONAL_SOURCES}
     hle/service/bcat/bcat.cpp
     hle/service/bcat/bcat.h
     hle/service/bcat/module.cpp
@@ -499,6 +510,15 @@ create_target_directory_groups(core)
 
 target_link_libraries(core PUBLIC common PRIVATE audio_core video_core)
 target_link_libraries(core PUBLIC Boost::boost PRIVATE fmt json-headers mbedtls opus unicorn open_source_archives)
+
+if (YUZU_ENABLE_BOXCAT)
+    get_directory_property(OPENSSL_LIBS
+        DIRECTORY ${PROJECT_SOURCE_DIR}/externals/libressl
+        DEFINITION OPENSSL_LIBS)
+    target_compile_definitions(core PRIVATE -DCPPHTTPLIB_OPENSSL_SUPPORT -DYUZU_ENABLE_BOXCAT)
+    target_link_libraries(core PRIVATE httplib json-headers ${OPENSSL_LIBS} zip)
+endif()
+
 if (ENABLE_WEB_SERVICE)
     target_compile_definitions(core PRIVATE -DENABLE_WEB_SERVICE)
     target_link_libraries(core PRIVATE web_service)

src/core/core.cpp

@@ -111,7 +111,8 @@ FileSys::VirtualFile GetGameFileFromPath(const FileSys::VirtualFilesystem& vfs,
 }
 struct System::Impl {
     explicit Impl(System& system)
-        : kernel{system}, cpu_core_manager{system}, applet_manager{system}, reporter{system} {}
+        : kernel{system}, fs_controller{system}, cpu_core_manager{system},
+          applet_manager{system}, reporter{system} {}
 
     Cpu& CurrentCpuCore() {
         return cpu_core_manager.GetCurrentCore();
@@ -339,6 +340,7 @@ struct System::Impl {
 
     std::unique_ptr<Memory::CheatEngine> cheat_engine;
     std::unique_ptr<Tools::Freezer> memory_freezer;
+    std::array<u8, 0x20> build_id{};
 
     /// Frontend applets
     Service::AM::Applets::AppletManager applet_manager;
@@ -640,6 +642,14 @@ bool System::GetExitLock() const {
     return impl->exit_lock;
 }
 
+void System::SetCurrentProcessBuildID(const CurrentBuildProcessID& id) {
+    impl->build_id = id;
+}
+
+const System::CurrentBuildProcessID& System::GetCurrentProcessBuildID() const {
+    return impl->build_id;
+}
+
 System::ResultStatus System::Init(Frontend::EmuWindow& emu_window) {
     return impl->Init(*this, emu_window);
 }

src/core/core.h

@@ -8,7 +8,6 @@
 #include <memory>
 #include <string>
 
-#include <map>
 #include "common/common_types.h"
 #include "core/file_sys/vfs_types.h"
 #include "core/hle/kernel/object.h"
@@ -98,6 +97,8 @@ FileSys::VirtualFile GetGameFileFromPath(const FileSys::VirtualFilesystem& vfs,
 
 class System {
 public:
+    using CurrentBuildProcessID = std::array<u8, 0x20>;
+
     System(const System&) = delete;
     System& operator=(const System&) = delete;
 
@@ -330,6 +331,10 @@ public:
 
     bool GetExitLock() const;
 
+    void SetCurrentProcessBuildID(const CurrentBuildProcessID& id);
+
+    const CurrentBuildProcessID& GetCurrentProcessBuildID() const;
+
 private:
     System();
 
@@ -353,8 +358,4 @@ private:
     static System s_instance;
 };
 
-inline Kernel::Process* CurrentProcess() {
-    return System::GetInstance().CurrentProcess();
-}
-
 } // namespace Core

src/core/crypto/key_manager.cpp

@@ -423,7 +423,7 @@ static std::optional<u64> FindTicketOffset(const std::array<u8, size>& data) {
 std::optional<std::pair<Key128, Key128>> ParseTicket(const Ticket& ticket,
                                                      const RSAKeyPair<2048>& key) {
     const auto issuer = ticket.GetData().issuer;
-    if (issuer == std::array<u8, 0x40>{})
+    if (IsAllZeroArray(issuer))
         return {};
     if (issuer[0] != 'R' || issuer[1] != 'o' || issuer[2] != 'o' || issuer[3] != 't') {
         LOG_INFO(Crypto, "Attempting to parse ticket with non-standard certificate authority.");

src/core/file_sys/bis_factory.cpp

@@ -136,4 +136,9 @@ u64 BISFactory::GetFullNANDTotalSpace() const {
     return static_cast<u64>(Settings::values.nand_total_size);
 }
 
+VirtualDir BISFactory::GetBCATDirectory(u64 title_id) const {
+    return GetOrCreateDirectoryRelative(nand_root,
+                                        fmt::format("/system/save/bcat/{:016X}", title_id));
+}
+
 } // namespace FileSys

src/core/file_sys/bis_factory.h

@@ -61,6 +61,8 @@ public:
     u64 GetUserNANDTotalSpace() const;
     u64 GetFullNANDTotalSpace() const;
 
+    VirtualDir GetBCATDirectory(u64 title_id) const;
+
 private:
     VirtualDir nand_root;
     VirtualDir load_root;

src/core/file_sys/romfs_factory.cpp

@@ -35,11 +35,11 @@ void RomFSFactory::SetPackedUpdate(VirtualFile update_raw) {
     this->update_raw = std::move(update_raw);
 }
 
-ResultVal<VirtualFile> RomFSFactory::OpenCurrentProcess() const {
+ResultVal<VirtualFile> RomFSFactory::OpenCurrentProcess(u64 current_process_title_id) const {
     if (!updatable)
         return MakeResult<VirtualFile>(file);
 
-    const PatchManager patch_manager(Core::CurrentProcess()->GetTitleID());
+    const PatchManager patch_manager(current_process_title_id);
     return MakeResult<VirtualFile>(
         patch_manager.PatchRomFS(file, ivfc_offset, ContentRecordType::Program, update_raw));
 }

src/core/file_sys/romfs_factory.h

@@ -33,7 +33,7 @@ public:
     ~RomFSFactory();
 
     void SetPackedUpdate(VirtualFile update_raw);
-    ResultVal<VirtualFile> OpenCurrentProcess() const;
+    ResultVal<VirtualFile> OpenCurrentProcess(u64 current_process_title_id) const;
     ResultVal<VirtualFile> Open(u64 title_id, StorageId storage, ContentRecordType type) const;
 
 private:

src/core/file_sys/savedata_factory.cpp

@@ -127,8 +127,9 @@ std::string SaveDataFactory::GetFullPath(SaveDataSpaceId space, SaveDataType typ
                                          u128 user_id, u64 save_id) {
     // According to switchbrew, if a save is of type SaveData and the title id field is 0, it should
     // be interpreted as the title id of the current process.
-    if (type == SaveDataType::SaveData && title_id == 0)
-        title_id = Core::CurrentProcess()->GetTitleID();
+    if (type == SaveDataType::SaveData && title_id == 0) {
+        title_id = Core::System::GetInstance().CurrentProcess()->GetTitleID();
+    }
 
     std::string out = GetSaveDataSpaceIdPath(space);
 

src/core/file_sys/vfs_libzip.cpp

@@ -0,0 +1,79 @@
+// Copyright 2019 yuzu emulator team
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include <string>
+#include <zip.h>
+#include "common/logging/backend.h"
+#include "core/file_sys/vfs.h"
+#include "core/file_sys/vfs_libzip.h"
+#include "core/file_sys/vfs_vector.h"
+
+namespace FileSys {
+
+VirtualDir ExtractZIP(VirtualFile file) {
+    zip_error_t error{};
+
+    const auto data = file->ReadAllBytes();
+    std::unique_ptr<zip_source_t, decltype(&zip_source_close)> src{
+        zip_source_buffer_create(data.data(), data.size(), 0, &error), zip_source_close};
+    if (src == nullptr)
+        return nullptr;
+
+    std::unique_ptr<zip_t, decltype(&zip_close)> zip{zip_open_from_source(src.get(), 0, &error),
+                                                     zip_close};
+    if (zip == nullptr)
+        return nullptr;
+
+    std::shared_ptr<VectorVfsDirectory> out = std::make_shared<VectorVfsDirectory>();
+
+    const auto num_entries = zip_get_num_entries(zip.get(), 0);
+
+    zip_stat_t stat{};
+    zip_stat_init(&stat);
+
+    for (std::size_t i = 0; i < num_entries; ++i) {
+        const auto stat_res = zip_stat_index(zip.get(), i, 0, &stat);
+        if (stat_res == -1)
+            return nullptr;
+
+        const std::string name(stat.name);
+        if (name.empty())
+            continue;
+
+        if (name.back() != '/') {
+            std::unique_ptr<zip_file_t, decltype(&zip_fclose)> file{
+                zip_fopen_index(zip.get(), i, 0), zip_fclose};
+
+            std::vector<u8> buf(stat.size);
+            if (zip_fread(file.get(), buf.data(), buf.size()) != buf.size())
+                return nullptr;
+
+            const auto parts = FileUtil::SplitPathComponents(stat.name);
+            const auto new_file = std::make_shared<VectorVfsFile>(buf, parts.back());
+
+            std::shared_ptr<VectorVfsDirectory> dtrv = out;
+            for (std::size_t j = 0; j < parts.size() - 1; ++j) {
+                if (dtrv == nullptr)
+                    return nullptr;
+                const auto subdir = dtrv->GetSubdirectory(parts[j]);
+                if (subdir == nullptr) {
+                    const auto temp = std::make_shared<VectorVfsDirectory>(
+                        std::vector<VirtualFile>{}, std::vector<VirtualDir>{}, parts[j]);
+                    dtrv->AddDirectory(temp);
+                    dtrv = temp;
+                } else {
+                    dtrv = std::dynamic_pointer_cast<VectorVfsDirectory>(subdir);
+                }
+            }
+
+            if (dtrv == nullptr)
+                return nullptr;
+            dtrv->AddFile(new_file);
+        }
+    }
+
+    return out;
+}
+
+} // namespace FileSys

src/core/file_sys/vfs_libzip.h

@@ -0,0 +1,13 @@
+// Copyright 2019 yuzu emulator team
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include "core/file_sys/vfs_types.h"
+
+namespace FileSys {
+
+VirtualDir ExtractZIP(VirtualFile zip);
+
+} // namespace FileSys

src/core/gdbstub/gdbstub.cpp

@@ -641,7 +641,8 @@ static void HandleQuery() {
                        strlen("Xfer:features:read:target.xml:")) == 0) {
         SendReply(target_xml);
     } else if (strncmp(query, "Offsets", strlen("Offsets")) == 0) {
-        const VAddr base_address = Core::CurrentProcess()->VMManager().GetCodeRegionBaseAddress();
+        const VAddr base_address =
+            Core::System::GetInstance().CurrentProcess()->VMManager().GetCodeRegionBaseAddress();
         std::string buffer = fmt::format("TextSeg={:0x}", base_address);
         SendReply(buffer.c_str());
     } else if (strncmp(query, "fThreadInfo", strlen("fThreadInfo")) == 0) {

src/core/hle/kernel/handle_table.cpp

@@ -103,7 +103,7 @@ SharedPtr<Object> HandleTable::GetGeneric(Handle handle) const {
     if (handle == CurrentThread) {
         return GetCurrentThread();
     } else if (handle == CurrentProcess) {
-        return Core::CurrentProcess();
+        return Core::System::GetInstance().CurrentProcess();
     }
 
     if (!IsValid(handle)) {

src/core/hle/service/am/am.cpp

@@ -31,6 +31,7 @@
 #include "core/hle/service/am/tcap.h"
 #include "core/hle/service/apm/controller.h"
 #include "core/hle/service/apm/interface.h"
+#include "core/hle/service/bcat/backend/backend.h"
 #include "core/hle/service/filesystem/filesystem.h"
 #include "core/hle/service/ns/ns.h"
 #include "core/hle/service/nvflinger/nvflinger.h"
@@ -46,15 +47,20 @@ constexpr ResultCode ERR_NO_DATA_IN_CHANNEL{ErrorModule::AM, 0x2};
 constexpr ResultCode ERR_NO_MESSAGES{ErrorModule::AM, 0x3};
 constexpr ResultCode ERR_SIZE_OUT_OF_BOUNDS{ErrorModule::AM, 0x1F7};
 
-constexpr u32 POP_LAUNCH_PARAMETER_MAGIC = 0xC79497CA;
+enum class LaunchParameterKind : u32 {
+    ApplicationSpecific = 1,
+    AccountPreselectedUser = 2,
+};
 
-struct LaunchParameters {
+constexpr u32 LAUNCH_PARAMETER_ACCOUNT_PRESELECTED_USER_MAGIC = 0xC79497CA;
+
+struct LaunchParameterAccountPreselectedUser {
     u32_le magic;
     u32_le is_account_selected;
     u128 current_user;
     INSERT_PADDING_BYTES(0x70);
 };
-static_assert(sizeof(LaunchParameters) == 0x88);
+static_assert(sizeof(LaunchParameterAccountPreselectedUser) == 0x88);
 
 IWindowController::IWindowController(Core::System& system_)
     : ServiceFramework("IWindowController"), system{system_} {
@@ -1128,26 +1134,55 @@ void IApplicationFunctions::EndBlockingHomeButton(Kernel::HLERequestContext& ctx
 }
 
 void IApplicationFunctions::PopLaunchParameter(Kernel::HLERequestContext& ctx) {
-    LOG_DEBUG(Service_AM, "called");
+    IPC::RequestParser rp{ctx};
+    const auto kind = rp.PopEnum<LaunchParameterKind>();
 
-    LaunchParameters params{};
+    LOG_DEBUG(Service_AM, "called, kind={:08X}", static_cast<u8>(kind));
 
-    params.magic = POP_LAUNCH_PARAMETER_MAGIC;
-    params.is_account_selected = 1;
+    if (kind == LaunchParameterKind::ApplicationSpecific && !launch_popped_application_specific) {
+        const auto backend = BCAT::CreateBackendFromSettings(
+            [this](u64 tid) { return system.GetFileSystemController().GetBCATDirectory(tid); });
+        const auto build_id_full = system.GetCurrentProcessBuildID();
+        u64 build_id{};
+        std::memcpy(&build_id, build_id_full.data(), sizeof(u64));
 
-    Account::ProfileManager profile_manager{};
-    const auto uuid = profile_manager.GetUser(Settings::values.current_user);
-    ASSERT(uuid);
-    params.current_user = uuid->uuid;
+        const auto data =
+            backend->GetLaunchParameter({system.CurrentProcess()->GetTitleID(), build_id});
 
-    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+        if (data.has_value()) {
+            IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+            rb.Push(RESULT_SUCCESS);
+            rb.PushIpcInterface<AM::IStorage>(*data);
+            launch_popped_application_specific = true;
+            return;
+        }
+    } else if (kind == LaunchParameterKind::AccountPreselectedUser &&
+               !launch_popped_account_preselect) {
+        LaunchParameterAccountPreselectedUser params{};
 
-    rb.Push(RESULT_SUCCESS);
+        params.magic = LAUNCH_PARAMETER_ACCOUNT_PRESELECTED_USER_MAGIC;
+        params.is_account_selected = 1;
 
-    std::vector<u8> buffer(sizeof(LaunchParameters));
-    std::memcpy(buffer.data(), &params, buffer.size());
+        Account::ProfileManager profile_manager{};
+        const auto uuid = profile_manager.GetUser(Settings::values.current_user);
+        ASSERT(uuid);
+        params.current_user = uuid->uuid;
 
-    rb.PushIpcInterface<AM::IStorage>(buffer);
+        IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+
+        rb.Push(RESULT_SUCCESS);
+
+        std::vector<u8> buffer(sizeof(LaunchParameterAccountPreselectedUser));
+        std::memcpy(buffer.data(), &params, buffer.size());
+
+        rb.PushIpcInterface<AM::IStorage>(buffer);
+        launch_popped_account_preselect = true;
+        return;
+    }
+
+    LOG_ERROR(Service_AM, "Attempted to load launch parameter but none was found!");
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ERR_NO_DATA_IN_CHANNEL);
 }
 
 void IApplicationFunctions::CreateApplicationAndRequestToStartForQuest(
@@ -1165,7 +1200,7 @@ void IApplicationFunctions::EnsureSaveData(Kernel::HLERequestContext& ctx) {
     LOG_DEBUG(Service_AM, "called, uid={:016X}{:016X}", user_id[1], user_id[0]);
 
     FileSys::SaveDataDescriptor descriptor{};
-    descriptor.title_id = Core::CurrentProcess()->GetTitleID();
+    descriptor.title_id = system.CurrentProcess()->GetTitleID();
     descriptor.user_id = user_id;
     descriptor.type = FileSys::SaveDataType::SaveData;
     const auto res = system.GetFileSystemController().CreateSaveData(

src/core/hle/service/am/am.h

@@ -147,6 +147,7 @@ private:
     void GetAccumulatedSuspendedTickValue(Kernel::HLERequestContext& ctx);
     void GetAccumulatedSuspendedTickChangedEvent(Kernel::HLERequestContext& ctx);
 
+    Core::System& system;
     std::shared_ptr<NVFlinger::NVFlinger> nvflinger;
     Kernel::EventPair launchable_event;
     Kernel::EventPair accumulated_suspended_tick_changed_event;
@@ -154,8 +155,6 @@ private:
     u32 idle_time_detection_extension = 0;
     u64 num_fatal_sections_entered = 0;
     bool is_auto_sleep_disabled = false;
-
-    Core::System& system;
 };
 
 class ICommonStateGetter final : public ServiceFramework<ICommonStateGetter> {
@@ -255,6 +254,8 @@ private:
     void EnableApplicationCrashReport(Kernel::HLERequestContext& ctx);
     void GetGpuErrorDetectedSystemEvent(Kernel::HLERequestContext& ctx);
 
+    bool launch_popped_application_specific = false;
+    bool launch_popped_account_preselect = false;
     Kernel::EventPair gpu_error_detected_event;
     Core::System& system;
 };

src/core/hle/service/am/applets/applets.cpp

@@ -157,6 +157,10 @@ AppletManager::AppletManager(Core::System& system_) : system{system_} {}
 
 AppletManager::~AppletManager() = default;
 
+const AppletFrontendSet& AppletManager::GetAppletFrontendSet() const {
+    return frontend;
+}
+
 void AppletManager::SetAppletFrontendSet(AppletFrontendSet set) {
     if (set.parental_controls != nullptr)
         frontend.parental_controls = std::move(set.parental_controls);

src/core/hle/service/am/applets/applets.h

@@ -190,6 +190,8 @@ public:
     explicit AppletManager(Core::System& system_);
     ~AppletManager();
 
+    const AppletFrontendSet& GetAppletFrontendSet() const;
+
     void SetAppletFrontendSet(AppletFrontendSet set);
     void SetDefaultAppletFrontendSet();
     void SetDefaultAppletsIfMissing();

src/core/hle/service/apm/controller.cpp

@@ -13,7 +13,7 @@ constexpr PerformanceConfiguration DEFAULT_PERFORMANCE_CONFIGURATION =
     PerformanceConfiguration::Config7;
 
 Controller::Controller(Core::Timing::CoreTiming& core_timing)
-    : core_timing(core_timing), configs{
+    : core_timing{core_timing}, configs{
                                     {PerformanceMode::Handheld, DEFAULT_PERFORMANCE_CONFIGURATION},
                                     {PerformanceMode::Docked, DEFAULT_PERFORMANCE_CONFIGURATION},
                                 } {}
@@ -63,6 +63,7 @@ PerformanceConfiguration Controller::GetCurrentPerformanceConfiguration(Performa
 void Controller::SetClockSpeed(u32 mhz) {
     LOG_INFO(Service_APM, "called, mhz={:08X}", mhz);
     // TODO(DarkLordZach): Actually signal core_timing to change clock speed.
+    // TODO(Rodrigo): Remove [[maybe_unused]] when core_timing is used.
 }
 
 } // namespace Service::APM

src/core/hle/service/apm/controller.h

@@ -50,7 +50,7 @@ enum class PerformanceMode : u8 {
 // system during times of high load -- this simply maps to different PerformanceConfigs to use.
 class Controller {
 public:
-    Controller(Core::Timing::CoreTiming& core_timing);
+    explicit Controller(Core::Timing::CoreTiming& core_timing);
     ~Controller();
 
     void SetPerformanceConfiguration(PerformanceMode mode, PerformanceConfiguration config);
@@ -62,9 +62,9 @@ public:
 private:
     void SetClockSpeed(u32 mhz);
 
-    std::map<PerformanceMode, PerformanceConfiguration> configs;
+    [[maybe_unused]] Core::Timing::CoreTiming& core_timing;
 
-    Core::Timing::CoreTiming& core_timing;
+    std::map<PerformanceMode, PerformanceConfiguration> configs;
 };
 
 } // namespace Service::APM

src/core/hle/service/audio/audout_u.cpp

@@ -205,7 +205,7 @@ private:
     AudioCore::StreamPtr stream;
     std::string device_name;
 
-    AudoutParams audio_params{};
+    [[maybe_unused]] AudoutParams audio_params {};
 
     /// This is the event handle used to check if the audio buffer was released
     Kernel::EventPair buffer_event;

src/core/hle/service/bcat/backend/backend.cpp

@@ -0,0 +1,137 @@
+// Copyright 2019 yuzu emulator team
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/hex_util.h"
+#include "common/logging/log.h"
+#include "core/core.h"
+#include "core/hle/lock.h"
+#include "core/hle/service/bcat/backend/backend.h"
+
+namespace Service::BCAT {
+
+ProgressServiceBackend::ProgressServiceBackend(std::string_view event_name) {
+    auto& kernel{Core::System::GetInstance().Kernel()};
+    event = Kernel::WritableEvent::CreateEventPair(
+        kernel, Kernel::ResetType::Automatic,
+        std::string("ProgressServiceBackend:UpdateEvent:").append(event_name));
+}
+
+Kernel::SharedPtr<Kernel::ReadableEvent> ProgressServiceBackend::GetEvent() const {
+    return event.readable;
+}
+
+DeliveryCacheProgressImpl& ProgressServiceBackend::GetImpl() {
+    return impl;
+}
+
+void ProgressServiceBackend::SetNeedHLELock(bool need) {
+    need_hle_lock = need;
+}
+
+void ProgressServiceBackend::SetTotalSize(u64 size) {
+    impl.total_bytes = size;
+    SignalUpdate();
+}
+
+void ProgressServiceBackend::StartConnecting() {
+    impl.status = DeliveryCacheProgressImpl::Status::Connecting;
+    SignalUpdate();
+}
+
+void ProgressServiceBackend::StartProcessingDataList() {
+    impl.status = DeliveryCacheProgressImpl::Status::ProcessingDataList;
+    SignalUpdate();
+}
+
+void ProgressServiceBackend::StartDownloadingFile(std::string_view dir_name,
+                                                  std::string_view file_name, u64 file_size) {
+    impl.status = DeliveryCacheProgressImpl::Status::Downloading;
+    impl.current_downloaded_bytes = 0;
+    impl.current_total_bytes = file_size;
+    std::memcpy(impl.current_directory.data(), dir_name.data(),
+                std::min<u64>(dir_name.size(), 0x31ull));
+    std::memcpy(impl.current_file.data(), file_name.data(),
+                std::min<u64>(file_name.size(), 0x31ull));
+    SignalUpdate();
+}
+
+void ProgressServiceBackend::UpdateFileProgress(u64 downloaded) {
+    impl.current_downloaded_bytes = downloaded;
+    SignalUpdate();
+}
+
+void ProgressServiceBackend::FinishDownloadingFile() {
+    impl.total_downloaded_bytes += impl.current_total_bytes;
+    SignalUpdate();
+}
+
+void ProgressServiceBackend::CommitDirectory(std::string_view dir_name) {
+    impl.status = DeliveryCacheProgressImpl::Status::Committing;
+    impl.current_file.fill(0);
+    impl.current_downloaded_bytes = 0;
+    impl.current_total_bytes = 0;
+    std::memcpy(impl.current_directory.data(), dir_name.data(),
+                std::min<u64>(dir_name.size(), 0x31ull));
+    SignalUpdate();
+}
+
+void ProgressServiceBackend::FinishDownload(ResultCode result) {
+    impl.total_downloaded_bytes = impl.total_bytes;
+    impl.status = DeliveryCacheProgressImpl::Status::Done;
+    impl.result = result;
+    SignalUpdate();
+}
+
+void ProgressServiceBackend::SignalUpdate() const {
+    if (need_hle_lock) {
+        std::lock_guard<std::recursive_mutex> lock(HLE::g_hle_lock);
+        event.writable->Signal();
+    } else {
+        event.writable->Signal();
+    }
+}
+
+Backend::Backend(DirectoryGetter getter) : dir_getter(std::move(getter)) {}
+
+Backend::~Backend() = default;
+
+NullBackend::NullBackend(DirectoryGetter getter) : Backend(std::move(getter)) {}
+
+NullBackend::~NullBackend() = default;
+
+bool NullBackend::Synchronize(TitleIDVersion title, ProgressServiceBackend& progress) {
+    LOG_DEBUG(Service_BCAT, "called, title_id={:016X}, build_id={:016X}", title.title_id,
+              title.build_id);
+
+    progress.FinishDownload(RESULT_SUCCESS);
+    return true;
+}
+
+bool NullBackend::SynchronizeDirectory(TitleIDVersion title, std::string name,
+                                       ProgressServiceBackend& progress) {
+    LOG_DEBUG(Service_BCAT, "called, title_id={:016X}, build_id={:016X}, name={}", title.title_id,
+              title.build_id, name);
+
+    progress.FinishDownload(RESULT_SUCCESS);
+    return true;
+}
+
+bool NullBackend::Clear(u64 title_id) {
+    LOG_DEBUG(Service_BCAT, "called, title_id={:016X}");
+
+    return true;
+}
+
+void NullBackend::SetPassphrase(u64 title_id, const Passphrase& passphrase) {
+    LOG_DEBUG(Service_BCAT, "called, title_id={:016X}, passphrase = {}", title_id,
+              Common::HexToString(passphrase));
+}
+
+std::optional<std::vector<u8>> NullBackend::GetLaunchParameter(TitleIDVersion title) {
+    LOG_DEBUG(Service_BCAT, "called, title_id={:016X}, build_id={:016X}", title.title_id,
+              title.build_id);
+    return std::nullopt;
+}
+
+} // namespace Service::BCAT

src/core/hle/service/bcat/backend/backend.h

@@ -0,0 +1,150 @@
+// Copyright 2019 yuzu emulator team
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <functional>
+#include <optional>
+#include <string>
+#include <string_view>
+
+#include "common/common_types.h"
+#include "core/file_sys/vfs_types.h"
+#include "core/hle/kernel/readable_event.h"
+#include "core/hle/kernel/writable_event.h"
+#include "core/hle/result.h"
+
+namespace Service::BCAT {
+
+struct DeliveryCacheProgressImpl;
+
+using DirectoryGetter = std::function<FileSys::VirtualDir(u64)>;
+using Passphrase = std::array<u8, 0x20>;
+
+struct TitleIDVersion {
+    u64 title_id;
+    u64 build_id;
+};
+
+using DirectoryName = std::array<char, 0x20>;
+using FileName = std::array<char, 0x20>;
+
+struct DeliveryCacheProgressImpl {
+    enum class Status : s32 {
+        None = 0x0,
+        Queued = 0x1,
+        Connecting = 0x2,
+        ProcessingDataList = 0x3,
+        Downloading = 0x4,
+        Committing = 0x5,
+        Done = 0x9,
+    };
+
+    Status status;
+    ResultCode result = RESULT_SUCCESS;
+    DirectoryName current_directory;
+    FileName current_file;
+    s64 current_downloaded_bytes; ///< Bytes downloaded on current file.
+    s64 current_total_bytes;      ///< Bytes total on current file.
+    s64 total_downloaded_bytes;   ///< Bytes downloaded on overall download.
+    s64 total_bytes;              ///< Bytes total on overall download.
+    INSERT_PADDING_BYTES(
+        0x198); ///< Appears to be unused in official code, possibly reserved for future use.
+};
+static_assert(sizeof(DeliveryCacheProgressImpl) == 0x200,
+              "DeliveryCacheProgressImpl has incorrect size.");
+
+// A class to manage the signalling to the game about BCAT download progress.
+// Some of this class is implemented in module.cpp to avoid exposing the implementation structure.
+class ProgressServiceBackend {
+    friend class IBcatService;
+
+public:
+    // Clients should call this with true if any of the functions are going to be called from a
+    // non-HLE thread and this class need to lock the hle mutex. (default is false)
+    void SetNeedHLELock(bool need);
+
+    // Sets the number of bytes total in the entire download.
+    void SetTotalSize(u64 size);
+
+    // Notifies the application that the backend has started connecting to the server.
+    void StartConnecting();
+    // Notifies the application that the backend has begun accumulating and processing metadata.
+    void StartProcessingDataList();
+
+    // Notifies the application that a file is starting to be downloaded.
+    void StartDownloadingFile(std::string_view dir_name, std::string_view file_name, u64 file_size);
+    // Updates the progress of the current file to the size passed.
+    void UpdateFileProgress(u64 downloaded);
+    // Notifies the application that the current file has completed download.
+    void FinishDownloadingFile();
+
+    // Notifies the application that all files in this directory have completed and are being
+    // finalized.
+    void CommitDirectory(std::string_view dir_name);
+
+    // Notifies the application that the operation completed with result code result.
+    void FinishDownload(ResultCode result);
+
+private:
+    explicit ProgressServiceBackend(std::string_view event_name);
+
+    Kernel::SharedPtr<Kernel::ReadableEvent> GetEvent() const;
+    DeliveryCacheProgressImpl& GetImpl();
+
+    void SignalUpdate() const;
+
+    DeliveryCacheProgressImpl impl{};
+    Kernel::EventPair event;
+    bool need_hle_lock = false;
+};
+
+// A class representing an abstract backend for BCAT functionality.
+class Backend {
+public:
+    explicit Backend(DirectoryGetter getter);
+    virtual ~Backend();
+
+    // Called when the backend is needed to synchronize the data for the game with title ID and
+    // version in title. A ProgressServiceBackend object is provided to alert the application of
+    // status.
+    virtual bool Synchronize(TitleIDVersion title, ProgressServiceBackend& progress) = 0;
+    // Very similar to Synchronize, but only for the directory provided. Backends should not alter
+    // the data for any other directories.
+    virtual bool SynchronizeDirectory(TitleIDVersion title, std::string name,
+                                      ProgressServiceBackend& progress) = 0;
+
+    // Removes all cached data associated with title id provided.
+    virtual bool Clear(u64 title_id) = 0;
+
+    // Sets the BCAT Passphrase to be used with the associated title ID.
+    virtual void SetPassphrase(u64 title_id, const Passphrase& passphrase) = 0;
+
+    // Gets the launch parameter used by AM associated with the title ID and version provided.
+    virtual std::optional<std::vector<u8>> GetLaunchParameter(TitleIDVersion title) = 0;
+
+protected:
+    DirectoryGetter dir_getter;
+};
+
+// A backend of BCAT that provides no operation.
+class NullBackend : public Backend {
+public:
+    explicit NullBackend(DirectoryGetter getter);
+    ~NullBackend() override;
+
+    bool Synchronize(TitleIDVersion title, ProgressServiceBackend& progress) override;
+    bool SynchronizeDirectory(TitleIDVersion title, std::string name,
+                              ProgressServiceBackend& progress) override;
+
+    bool Clear(u64 title_id) override;
+
+    void SetPassphrase(u64 title_id, const Passphrase& passphrase) override;
+
+    std::optional<std::vector<u8>> GetLaunchParameter(TitleIDVersion title) override;
+};
+
+std::unique_ptr<Backend> CreateBackendFromSettings(DirectoryGetter getter);
+
+} // namespace Service::BCAT

src/core/hle/service/bcat/backend/boxcat.cpp

@@ -0,0 +1,504 @@
+// Copyright 2019 yuzu emulator team
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include <fmt/ostream.h>
+#include <httplib.h>
+#include <json.hpp>
+#include <mbedtls/sha256.h>
+#include "common/hex_util.h"
+#include "common/logging/backend.h"
+#include "common/logging/log.h"
+#include "core/core.h"
+#include "core/file_sys/vfs.h"
+#include "core/file_sys/vfs_libzip.h"
+#include "core/file_sys/vfs_vector.h"
+#include "core/frontend/applets/error.h"
+#include "core/hle/service/am/applets/applets.h"
+#include "core/hle/service/bcat/backend/boxcat.h"
+#include "core/settings.h"
+
+namespace {
+
+// Prevents conflicts with windows macro called CreateFile
+FileSys::VirtualFile VfsCreateFileWrap(FileSys::VirtualDir dir, std::string_view name) {
+    return dir->CreateFile(name);
+}
+
+// Prevents conflicts with windows macro called DeleteFile
+bool VfsDeleteFileWrap(FileSys::VirtualDir dir, std::string_view name) {
+    return dir->DeleteFile(name);
+}
+
+} // Anonymous namespace
+
+namespace Service::BCAT {
+
+constexpr ResultCode ERROR_GENERAL_BCAT_FAILURE{ErrorModule::BCAT, 1};
+
+constexpr char BOXCAT_HOSTNAME[] = "api.yuzu-emu.org";
+
+// Formatted using fmt with arg[0] = hex title id
+constexpr char BOXCAT_PATHNAME_DATA[] = "/game-assets/{:016X}/boxcat";
+constexpr char BOXCAT_PATHNAME_LAUNCHPARAM[] = "/game-assets/{:016X}/launchparam";
+
+constexpr char BOXCAT_PATHNAME_EVENTS[] = "/game-assets/boxcat/events";
+
+constexpr char BOXCAT_API_VERSION[] = "1";
+constexpr char BOXCAT_CLIENT_TYPE[] = "yuzu";
+
+// HTTP status codes for Boxcat
+enum class ResponseStatus {
+    Ok = 200,               ///< Operation completed successfully.
+    BadClientVersion = 301, ///< The Boxcat-Client-Version doesn't match the server.
+    NoUpdate = 304,         ///< The digest provided would match the new data, no need to update.
+    NoMatchTitleId = 404,   ///< The title ID provided doesn't have a boxcat implementation.
+    NoMatchBuildId = 406,   ///< The build ID provided is blacklisted (potentially because of format
+                            ///< issues or whatnot) and has no data.
+};
+
+enum class DownloadResult {
+    Success = 0,
+    NoResponse,
+    GeneralWebError,
+    NoMatchTitleId,
+    NoMatchBuildId,
+    InvalidContentType,
+    GeneralFSError,
+    BadClientVersion,
+};
+
+constexpr std::array<const char*, 8> DOWNLOAD_RESULT_LOG_MESSAGES{
+    "Success",
+    "There was no response from the server.",
+    "There was a general web error code returned from the server.",
+    "The title ID of the current game doesn't have a boxcat implementation. If you believe an "
+    "implementation should be added, contact yuzu support.",
+    "The build ID of the current version of the game is marked as incompatible with the current "
+    "BCAT distribution. Try upgrading or downgrading your game version or contacting yuzu support.",
+    "The content type of the web response was invalid.",
+    "There was a general filesystem error while saving the zip file.",
+    "The server is either too new or too old to serve the request. Try using the latest version of "
+    "an official release of yuzu.",
+};
+
+std::ostream& operator<<(std::ostream& os, DownloadResult result) {
+    return os << DOWNLOAD_RESULT_LOG_MESSAGES.at(static_cast<std::size_t>(result));
+}
+
+constexpr u32 PORT = 443;
+constexpr u32 TIMEOUT_SECONDS = 30;
+[[maybe_unused]] constexpr u64 VFS_COPY_BLOCK_SIZE = 1ULL << 24; // 4MB
+
+namespace {
+
+std::string GetBINFilePath(u64 title_id) {
+    return fmt::format("{}bcat/{:016X}/launchparam.bin",
+                       FileUtil::GetUserPath(FileUtil::UserPath::CacheDir), title_id);
+}
+
+std::string GetZIPFilePath(u64 title_id) {
+    return fmt::format("{}bcat/{:016X}/data.zip",
+                       FileUtil::GetUserPath(FileUtil::UserPath::CacheDir), title_id);
+}
+
+// If the error is something the user should know about (build ID mismatch, bad client version),
+// display an error.
+void HandleDownloadDisplayResult(DownloadResult res) {
+    if (res == DownloadResult::Success || res == DownloadResult::NoResponse ||
+        res == DownloadResult::GeneralWebError || res == DownloadResult::GeneralFSError ||
+        res == DownloadResult::NoMatchTitleId || res == DownloadResult::InvalidContentType) {
+        return;
+    }
+
+    const auto& frontend{Core::System::GetInstance().GetAppletManager().GetAppletFrontendSet()};
+    frontend.error->ShowCustomErrorText(
+        ResultCode(-1), "There was an error while attempting to use Boxcat.",
+        DOWNLOAD_RESULT_LOG_MESSAGES[static_cast<std::size_t>(res)], [] {});
+}
+
+bool VfsRawCopyProgress(FileSys::VirtualFile src, FileSys::VirtualFile dest,
+                        std::string_view dir_name, ProgressServiceBackend& progress,
+                        std::size_t block_size = 0x1000) {
+    if (src == nullptr || dest == nullptr || !src->IsReadable() || !dest->IsWritable())
+        return false;
+    if (!dest->Resize(src->GetSize()))
+        return false;
+
+    progress.StartDownloadingFile(dir_name, src->GetName(), src->GetSize());
+
+    std::vector<u8> temp(std::min(block_size, src->GetSize()));
+    for (std::size_t i = 0; i < src->GetSize(); i += block_size) {
+        const auto read = std::min(block_size, src->GetSize() - i);
+
+        if (src->Read(temp.data(), read, i) != read) {
+            return false;
+        }
+
+        if (dest->Write(temp.data(), read, i) != read) {
+            return false;
+        }
+
+        progress.UpdateFileProgress(i);
+    }
+
+    progress.FinishDownloadingFile();
+
+    return true;
+}
+
+bool VfsRawCopyDProgressSingle(FileSys::VirtualDir src, FileSys::VirtualDir dest,
+                               ProgressServiceBackend& progress, std::size_t block_size = 0x1000) {
+    if (src == nullptr || dest == nullptr || !src->IsReadable() || !dest->IsWritable())
+        return false;
+
+    for (const auto& file : src->GetFiles()) {
+        const auto out_file = VfsCreateFileWrap(dest, file->GetName());
+        if (!VfsRawCopyProgress(file, out_file, src->GetName(), progress, block_size)) {
+            return false;
+        }
+    }
+    progress.CommitDirectory(src->GetName());
+
+    return true;
+}
+
+bool VfsRawCopyDProgress(FileSys::VirtualDir src, FileSys::VirtualDir dest,
+                         ProgressServiceBackend& progress, std::size_t block_size = 0x1000) {
+    if (src == nullptr || dest == nullptr || !src->IsReadable() || !dest->IsWritable())
+        return false;
+
+    for (const auto& dir : src->GetSubdirectories()) {
+        const auto out = dest->CreateSubdirectory(dir->GetName());
+        if (!VfsRawCopyDProgressSingle(dir, out, progress, block_size)) {
+            return false;
+        }
+    }
+
+    return true;
+}
+
+} // Anonymous namespace
+
+class Boxcat::Client {
+public:
+    Client(std::string path, u64 title_id, u64 build_id)
+        : path(std::move(path)), title_id(title_id), build_id(build_id) {}
+
+    DownloadResult DownloadDataZip() {
+        return DownloadInternal(fmt::format(BOXCAT_PATHNAME_DATA, title_id), TIMEOUT_SECONDS,
+                                "application/zip");
+    }
+
+    DownloadResult DownloadLaunchParam() {
+        return DownloadInternal(fmt::format(BOXCAT_PATHNAME_LAUNCHPARAM, title_id),
+                                TIMEOUT_SECONDS / 3, "application/octet-stream");
+    }
+
+private:
+    DownloadResult DownloadInternal(const std::string& resolved_path, u32 timeout_seconds,
+                                    const std::string& content_type_name) {
+        if (client == nullptr) {
+            client = std::make_unique<httplib::SSLClient>(BOXCAT_HOSTNAME, PORT, timeout_seconds);
+        }
+
+        httplib::Headers headers{
+            {std::string("Game-Assets-API-Version"), std::string(BOXCAT_API_VERSION)},
+            {std::string("Boxcat-Client-Type"), std::string(BOXCAT_CLIENT_TYPE)},
+            {std::string("Game-Build-Id"), fmt::format("{:016X}", build_id)},
+        };
+
+        if (FileUtil::Exists(path)) {
+            FileUtil::IOFile file{path, "rb"};
+            if (file.IsOpen()) {
+                std::vector<u8> bytes(file.GetSize());
+                file.ReadBytes(bytes.data(), bytes.size());
+                const auto digest = DigestFile(bytes);
+                headers.insert({std::string("If-None-Match"), Common::HexToString(digest, false)});
+            }
+        }
+
+        const auto response = client->Get(resolved_path.c_str(), headers);
+        if (response == nullptr)
+            return DownloadResult::NoResponse;
+
+        if (response->status == static_cast<int>(ResponseStatus::NoUpdate))
+            return DownloadResult::Success;
+        if (response->status == static_cast<int>(ResponseStatus::BadClientVersion))
+            return DownloadResult::BadClientVersion;
+        if (response->status == static_cast<int>(ResponseStatus::NoMatchTitleId))
+            return DownloadResult::NoMatchTitleId;
+        if (response->status == static_cast<int>(ResponseStatus::NoMatchBuildId))
+            return DownloadResult::NoMatchBuildId;
+        if (response->status != static_cast<int>(ResponseStatus::Ok))
+            return DownloadResult::GeneralWebError;
+
+        const auto content_type = response->headers.find("content-type");
+        if (content_type == response->headers.end() ||
+            content_type->second.find(content_type_name) == std::string::npos) {
+            return DownloadResult::InvalidContentType;
+        }
+
+        FileUtil::CreateFullPath(path);
+        FileUtil::IOFile file{path, "wb"};
+        if (!file.IsOpen())
+            return DownloadResult::GeneralFSError;
+        if (!file.Resize(response->body.size()))
+            return DownloadResult::GeneralFSError;
+        if (file.WriteBytes(response->body.data(), response->body.size()) != response->body.size())
+            return DownloadResult::GeneralFSError;
+
+        return DownloadResult::Success;
+    }
+
+    using Digest = std::array<u8, 0x20>;
+    static Digest DigestFile(std::vector<u8> bytes) {
+        Digest out{};
+        mbedtls_sha256(bytes.data(), bytes.size(), out.data(), 0);
+        return out;
+    }
+
+    std::unique_ptr<httplib::Client> client;
+    std::string path;
+    u64 title_id;
+    u64 build_id;
+};
+
+Boxcat::Boxcat(DirectoryGetter getter) : Backend(std::move(getter)) {}
+
+Boxcat::~Boxcat() = default;
+
+void SynchronizeInternal(DirectoryGetter dir_getter, TitleIDVersion title,
+                         ProgressServiceBackend& progress,
+                         std::optional<std::string> dir_name = {}) {
+    progress.SetNeedHLELock(true);
+
+    if (Settings::values.bcat_boxcat_local) {
+        LOG_INFO(Service_BCAT, "Boxcat using local data by override, skipping download.");
+        const auto dir = dir_getter(title.title_id);
+        if (dir)
+            progress.SetTotalSize(dir->GetSize());
+        progress.FinishDownload(RESULT_SUCCESS);
+        return;
+    }
+
+    const auto zip_path{GetZIPFilePath(title.title_id)};
+    Boxcat::Client client{zip_path, title.title_id, title.build_id};
+
+    progress.StartConnecting();
+
+    const auto res = client.DownloadDataZip();
+    if (res != DownloadResult::Success) {
+        LOG_ERROR(Service_BCAT, "Boxcat synchronization failed with error '{}'!", res);
+
+        if (res == DownloadResult::NoMatchBuildId || res == DownloadResult::NoMatchTitleId) {
+            FileUtil::Delete(zip_path);
+        }
+
+        HandleDownloadDisplayResult(res);
+        progress.FinishDownload(ERROR_GENERAL_BCAT_FAILURE);
+        return;
+    }
+
+    progress.StartProcessingDataList();
+
+    FileUtil::IOFile zip{zip_path, "rb"};
+    const auto size = zip.GetSize();
+    std::vector<u8> bytes(size);
+    if (!zip.IsOpen() || size == 0 || zip.ReadBytes(bytes.data(), bytes.size()) != bytes.size()) {
+        LOG_ERROR(Service_BCAT, "Boxcat failed to read ZIP file at path '{}'!", zip_path);
+        progress.FinishDownload(ERROR_GENERAL_BCAT_FAILURE);
+        return;
+    }
+
+    const auto extracted = FileSys::ExtractZIP(std::make_shared<FileSys::VectorVfsFile>(bytes));
+    if (extracted == nullptr) {
+        LOG_ERROR(Service_BCAT, "Boxcat failed to extract ZIP file!");
+        progress.FinishDownload(ERROR_GENERAL_BCAT_FAILURE);
+        return;
+    }
+
+    if (dir_name == std::nullopt) {
+        progress.SetTotalSize(extracted->GetSize());
+
+        const auto target_dir = dir_getter(title.title_id);
+        if (target_dir == nullptr || !VfsRawCopyDProgress(extracted, target_dir, progress)) {
+            LOG_ERROR(Service_BCAT, "Boxcat failed to copy extracted ZIP to target directory!");
+            progress.FinishDownload(ERROR_GENERAL_BCAT_FAILURE);
+            return;
+        }
+    } else {
+        const auto target_dir = dir_getter(title.title_id);
+        if (target_dir == nullptr) {
+            LOG_ERROR(Service_BCAT, "Boxcat failed to get directory for title ID!");
+            progress.FinishDownload(ERROR_GENERAL_BCAT_FAILURE);
+            return;
+        }
+
+        const auto target_sub = target_dir->GetSubdirectory(*dir_name);
+        const auto source_sub = extracted->GetSubdirectory(*dir_name);
+
+        progress.SetTotalSize(source_sub->GetSize());
+
+        std::vector<std::string> filenames;
+        {
+            const auto files = target_sub->GetFiles();
+            std::transform(files.begin(), files.end(), std::back_inserter(filenames),
+                           [](const auto& vfile) { return vfile->GetName(); });
+        }
+
+        for (const auto& filename : filenames) {
+            VfsDeleteFileWrap(target_sub, filename);
+        }
+
+        if (target_sub == nullptr || source_sub == nullptr ||
+            !VfsRawCopyDProgressSingle(source_sub, target_sub, progress)) {
+            LOG_ERROR(Service_BCAT, "Boxcat failed to copy extracted ZIP to target directory!");
+            progress.FinishDownload(ERROR_GENERAL_BCAT_FAILURE);
+            return;
+        }
+    }
+
+    progress.FinishDownload(RESULT_SUCCESS);
+}
+
+bool Boxcat::Synchronize(TitleIDVersion title, ProgressServiceBackend& progress) {
+    is_syncing.exchange(true);
+    std::thread([this, title, &progress] { SynchronizeInternal(dir_getter, title, progress); })
+        .detach();
+    return true;
+}
+
+bool Boxcat::SynchronizeDirectory(TitleIDVersion title, std::string name,
+                                  ProgressServiceBackend& progress) {
+    is_syncing.exchange(true);
+    std::thread(
+        [this, title, name, &progress] { SynchronizeInternal(dir_getter, title, progress, name); })
+        .detach();
+    return true;
+}
+
+bool Boxcat::Clear(u64 title_id) {
+    if (Settings::values.bcat_boxcat_local) {
+        LOG_INFO(Service_BCAT, "Boxcat using local data by override, skipping clear.");
+        return true;
+    }
+
+    const auto dir = dir_getter(title_id);
+
+    std::vector<std::string> dirnames;
+
+    for (const auto& subdir : dir->GetSubdirectories())
+        dirnames.push_back(subdir->GetName());
+
+    for (const auto& subdir : dirnames) {
+        if (!dir->DeleteSubdirectoryRecursive(subdir))
+            return false;
+    }
+
+    return true;
+}
+
+void Boxcat::SetPassphrase(u64 title_id, const Passphrase& passphrase) {
+    LOG_DEBUG(Service_BCAT, "called, title_id={:016X}, passphrase={}", title_id,
+              Common::HexToString(passphrase));
+}
+
+std::optional<std::vector<u8>> Boxcat::GetLaunchParameter(TitleIDVersion title) {
+    const auto path{GetBINFilePath(title.title_id)};
+
+    if (Settings::values.bcat_boxcat_local) {
+        LOG_INFO(Service_BCAT, "Boxcat using local data by override, skipping download.");
+    } else {
+        Boxcat::Client client{path, title.title_id, title.build_id};
+
+        const auto res = client.DownloadLaunchParam();
+        if (res != DownloadResult::Success) {
+            LOG_ERROR(Service_BCAT, "Boxcat synchronization failed with error '{}'!", res);
+
+            if (res == DownloadResult::NoMatchBuildId || res == DownloadResult::NoMatchTitleId) {
+                FileUtil::Delete(path);
+            }
+
+            HandleDownloadDisplayResult(res);
+            return std::nullopt;
+        }
+    }
+
+    FileUtil::IOFile bin{path, "rb"};
+    const auto size = bin.GetSize();
+    std::vector<u8> bytes(size);
+    if (!bin.IsOpen() || size == 0 || bin.ReadBytes(bytes.data(), bytes.size()) != bytes.size()) {
+        LOG_ERROR(Service_BCAT, "Boxcat failed to read launch parameter binary at path '{}'!",
+                  path);
+        return std::nullopt;
+    }
+
+    return bytes;
+}
+
+Boxcat::StatusResult Boxcat::GetStatus(std::optional<std::string>& global,
+                                       std::map<std::string, EventStatus>& games) {
+    httplib::SSLClient client{BOXCAT_HOSTNAME, static_cast<int>(PORT),
+                              static_cast<int>(TIMEOUT_SECONDS)};
+
+    httplib::Headers headers{
+        {std::string("Game-Assets-API-Version"), std::string(BOXCAT_API_VERSION)},
+        {std::string("Boxcat-Client-Type"), std::string(BOXCAT_CLIENT_TYPE)},
+    };
+
+    const auto response = client.Get(BOXCAT_PATHNAME_EVENTS, headers);
+    if (response == nullptr)
+        return StatusResult::Offline;
+
+    if (response->status == static_cast<int>(ResponseStatus::BadClientVersion))
+        return StatusResult::BadClientVersion;
+
+    try {
+        nlohmann::json json = nlohmann::json::parse(response->body);
+
+        if (!json["online"].get<bool>())
+            return StatusResult::Offline;
+
+        if (json["global"].is_null())
+            global = std::nullopt;
+        else
+            global = json["global"].get<std::string>();
+
+        if (json["games"].is_array()) {
+            for (const auto object : json["games"]) {
+                if (object.is_object() && object.find("name") != object.end()) {
+                    EventStatus detail{};
+                    if (object["header"].is_string()) {
+                        detail.header = object["header"].get<std::string>();
+                    } else {
+                        detail.header = std::nullopt;
+                    }
+
+                    if (object["footer"].is_string()) {
+                        detail.footer = object["footer"].get<std::string>();
+                    } else {
+                        detail.footer = std::nullopt;
+                    }
+
+                    if (object["events"].is_array()) {
+                        for (const auto& event : object["events"]) {
+                            if (!event.is_string())
+                                continue;
+                            detail.events.push_back(event.get<std::string>());
+                        }
+                    }
+
+                    games.insert_or_assign(object["name"], std::move(detail));
+                }
+            }
+        }
+
+        return StatusResult::Success;
+    } catch (const nlohmann::json::parse_error& error) {
+        LOG_ERROR(Service_BCAT, "{}", error.what());
+        return StatusResult::ParseError;
+    }
+}
+
+} // namespace Service::BCAT

src/core/hle/service/bcat/backend/boxcat.h

@@ -0,0 +1,58 @@
+// Copyright 2019 yuzu emulator team
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <atomic>
+#include <map>
+#include <optional>
+#include "core/hle/service/bcat/backend/backend.h"
+
+namespace Service::BCAT {
+
+struct EventStatus {
+    std::optional<std::string> header;
+    std::optional<std::string> footer;
+    std::vector<std::string> events;
+};
+
+/// Boxcat is yuzu's custom backend implementation of Nintendo's BCAT service. It is free to use and
+/// doesn't require a switch or nintendo account. The content is controlled by the yuzu team.
+class Boxcat final : public Backend {
+    friend void SynchronizeInternal(DirectoryGetter dir_getter, TitleIDVersion title,
+                                    ProgressServiceBackend& progress,
+                                    std::optional<std::string> dir_name);
+
+public:
+    explicit Boxcat(DirectoryGetter getter);
+    ~Boxcat() override;
+
+    bool Synchronize(TitleIDVersion title, ProgressServiceBackend& progress) override;
+    bool SynchronizeDirectory(TitleIDVersion title, std::string name,
+                              ProgressServiceBackend& progress) override;
+
+    bool Clear(u64 title_id) override;
+
+    void SetPassphrase(u64 title_id, const Passphrase& passphrase) override;
+
+    std::optional<std::vector<u8>> GetLaunchParameter(TitleIDVersion title) override;
+
+    enum class StatusResult {
+        Success,
+        Offline,
+        ParseError,
+        BadClientVersion,
+    };
+
+    static StatusResult GetStatus(std::optional<std::string>& global,
+                                  std::map<std::string, EventStatus>& games);
+
+private:
+    std::atomic_bool is_syncing{false};
+
+    class Client;
+    std::unique_ptr<Client> client;
+};
+
+} // namespace Service::BCAT

src/core/hle/service/bcat/bcat.cpp

@@ -6,11 +6,16 @@
 
 namespace Service::BCAT {
 
-BCAT::BCAT(std::shared_ptr<Module> module, const char* name)
-    : Module::Interface(std::move(module), name) {
+BCAT::BCAT(Core::System& system, std::shared_ptr<Module> module,
+           FileSystem::FileSystemController& fsc, const char* name)
+    : Interface(system, std::move(module), fsc, name) {
+    // clang-format off
     static const FunctionInfo functions[] = {
         {0, &BCAT::CreateBcatService, "CreateBcatService"},
+        {1, &BCAT::CreateDeliveryCacheStorageService, "CreateDeliveryCacheStorageService"},
+        {2, &BCAT::CreateDeliveryCacheStorageServiceWithApplicationId, "CreateDeliveryCacheStorageServiceWithApplicationId"},
     };
+    // clang-format on
     RegisterHandlers(functions);
 }
 

src/core/hle/service/bcat/bcat.h

@@ -6,11 +6,16 @@
 
 #include "core/hle/service/bcat/module.h"
 
+namespace Core {
+class System;
+}
+
 namespace Service::BCAT {
 
 class BCAT final : public Module::Interface {
 public:
-    explicit BCAT(std::shared_ptr<Module> module, const char* name);
+    explicit BCAT(Core::System& system, std::shared_ptr<Module> module,
+                  FileSystem::FileSystemController& fsc, const char* name);
     ~BCAT() override;
 };
 

src/core/hle/service/bcat/module.cpp

@@ -2,34 +2,257 @@
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
+#include <cctype>
+#include <mbedtls/md5.h>
+#include "backend/boxcat.h"
+#include "common/hex_util.h"
 #include "common/logging/log.h"
+#include "common/string_util.h"
+#include "core/file_sys/vfs.h"
 #include "core/hle/ipc_helpers.h"
+#include "core/hle/kernel/process.h"
+#include "core/hle/kernel/readable_event.h"
+#include "core/hle/kernel/writable_event.h"
+#include "core/hle/service/bcat/backend/backend.h"
 #include "core/hle/service/bcat/bcat.h"
 #include "core/hle/service/bcat/module.h"
+#include "core/hle/service/filesystem/filesystem.h"
+#include "core/settings.h"
 
 namespace Service::BCAT {
 
+constexpr ResultCode ERROR_INVALID_ARGUMENT{ErrorModule::BCAT, 1};
+constexpr ResultCode ERROR_FAILED_OPEN_ENTITY{ErrorModule::BCAT, 2};
+constexpr ResultCode ERROR_ENTITY_ALREADY_OPEN{ErrorModule::BCAT, 6};
+constexpr ResultCode ERROR_NO_OPEN_ENTITY{ErrorModule::BCAT, 7};
+
+// The command to clear the delivery cache just calls fs IFileSystem DeleteFile on all of the files
+// and if any of them have a non-zero result it just forwards that result. This is the FS error code
+// for permission denied, which is the closest approximation of this scenario.
+constexpr ResultCode ERROR_FAILED_CLEAR_CACHE{ErrorModule::FS, 6400};
+
+using BCATDigest = std::array<u8, 0x10>;
+
+namespace {
+
+u64 GetCurrentBuildID(const Core::System::CurrentBuildProcessID& id) {
+    u64 out{};
+    std::memcpy(&out, id.data(), sizeof(u64));
+    return out;
+}
+
+// The digest is only used to determine if a file is unique compared to others of the same name.
+// Since the algorithm isn't ever checked in game, MD5 is safe.
+BCATDigest DigestFile(const FileSys::VirtualFile& file) {
+    BCATDigest out{};
+    const auto bytes = file->ReadAllBytes();
+    mbedtls_md5(bytes.data(), bytes.size(), out.data());
+    return out;
+}
+
+// For a name to be valid it must be non-empty, must have a null terminating character as the final
+// char, can only contain numbers, letters, underscores and a hyphen if directory and a period if
+// file.
+bool VerifyNameValidInternal(Kernel::HLERequestContext& ctx, std::array<char, 0x20> name,
+                             char match_char) {
+    const auto null_chars = std::count(name.begin(), name.end(), 0);
+    const auto bad_chars = std::count_if(name.begin(), name.end(), [match_char](char c) {
+        return !std::isalnum(static_cast<u8>(c)) && c != '_' && c != match_char && c != '\0';
+    });
+    if (null_chars == 0x20 || null_chars == 0 || bad_chars != 0 || name[0x1F] != '\0') {
+        LOG_ERROR(Service_BCAT, "Name passed was invalid!");
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(ERROR_INVALID_ARGUMENT);
+        return false;
+    }
+
+    return true;
+}
+
+bool VerifyNameValidDir(Kernel::HLERequestContext& ctx, DirectoryName name) {
+    return VerifyNameValidInternal(ctx, name, '-');
+}
+
+bool VerifyNameValidFile(Kernel::HLERequestContext& ctx, FileName name) {
+    return VerifyNameValidInternal(ctx, name, '.');
+}
+
+} // Anonymous namespace
+
+struct DeliveryCacheDirectoryEntry {
+    FileName name;
+    u64 size;
+    BCATDigest digest;
+};
+
+class IDeliveryCacheProgressService final : public ServiceFramework<IDeliveryCacheProgressService> {
+public:
+    IDeliveryCacheProgressService(Kernel::SharedPtr<Kernel::ReadableEvent> event,
+                                  const DeliveryCacheProgressImpl& impl)
+        : ServiceFramework{"IDeliveryCacheProgressService"}, event(std::move(event)), impl(impl) {
+        // clang-format off
+        static const FunctionInfo functions[] = {
+            {0, &IDeliveryCacheProgressService::GetEvent, "GetEvent"},
+            {1, &IDeliveryCacheProgressService::GetImpl, "GetImpl"},
+        };
+        // clang-format on
+
+        RegisterHandlers(functions);
+    }
+
+private:
+    void GetEvent(Kernel::HLERequestContext& ctx) {
+        LOG_DEBUG(Service_BCAT, "called");
+
+        IPC::ResponseBuilder rb{ctx, 2, 1};
+        rb.Push(RESULT_SUCCESS);
+        rb.PushCopyObjects(event);
+    }
+
+    void GetImpl(Kernel::HLERequestContext& ctx) {
+        LOG_DEBUG(Service_BCAT, "called");
+
+        ctx.WriteBuffer(&impl, sizeof(DeliveryCacheProgressImpl));
+
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(RESULT_SUCCESS);
+    }
+
+    Kernel::SharedPtr<Kernel::ReadableEvent> event;
+    const DeliveryCacheProgressImpl& impl;
+};
+
 class IBcatService final : public ServiceFramework<IBcatService> {
 public:
-    IBcatService() : ServiceFramework("IBcatService") {
+    explicit IBcatService(Core::System& system_, Backend& backend_)
+        : ServiceFramework("IBcatService"), system{system_}, backend{backend_} {
+        // clang-format off
         static const FunctionInfo functions[] = {
-            {10100, nullptr, "RequestSyncDeliveryCache"},
-            {10101, nullptr, "RequestSyncDeliveryCacheWithDirectoryName"},
+            {10100, &IBcatService::RequestSyncDeliveryCache, "RequestSyncDeliveryCache"},
+            {10101, &IBcatService::RequestSyncDeliveryCacheWithDirectoryName, "RequestSyncDeliveryCacheWithDirectoryName"},
             {10200, nullptr, "CancelSyncDeliveryCacheRequest"},
             {20100, nullptr, "RequestSyncDeliveryCacheWithApplicationId"},
             {20101, nullptr, "RequestSyncDeliveryCacheWithApplicationIdAndDirectoryName"},
-            {30100, nullptr, "SetPassphrase"},
+            {30100, &IBcatService::SetPassphrase, "SetPassphrase"},
             {30200, nullptr, "RegisterBackgroundDeliveryTask"},
             {30201, nullptr, "UnregisterBackgroundDeliveryTask"},
             {30202, nullptr, "BlockDeliveryTask"},
             {30203, nullptr, "UnblockDeliveryTask"},
             {90100, nullptr, "EnumerateBackgroundDeliveryTask"},
             {90200, nullptr, "GetDeliveryList"},
-            {90201, nullptr, "ClearDeliveryCacheStorage"},
+            {90201, &IBcatService::ClearDeliveryCacheStorage, "ClearDeliveryCacheStorage"},
             {90300, nullptr, "GetPushNotificationLog"},
         };
+        // clang-format on
         RegisterHandlers(functions);
     }
+
+private:
+    enum class SyncType {
+        Normal,
+        Directory,
+        Count,
+    };
+
+    std::shared_ptr<IDeliveryCacheProgressService> CreateProgressService(SyncType type) {
+        auto& backend{progress.at(static_cast<std::size_t>(type))};
+        return std::make_shared<IDeliveryCacheProgressService>(backend.GetEvent(),
+                                                               backend.GetImpl());
+    }
+
+    void RequestSyncDeliveryCache(Kernel::HLERequestContext& ctx) {
+        LOG_DEBUG(Service_BCAT, "called");
+
+        backend.Synchronize({system.CurrentProcess()->GetTitleID(),
+                             GetCurrentBuildID(system.GetCurrentProcessBuildID())},
+                            progress.at(static_cast<std::size_t>(SyncType::Normal)));
+
+        IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+        rb.Push(RESULT_SUCCESS);
+        rb.PushIpcInterface(CreateProgressService(SyncType::Normal));
+    }
+
+    void RequestSyncDeliveryCacheWithDirectoryName(Kernel::HLERequestContext& ctx) {
+        IPC::RequestParser rp{ctx};
+        const auto name_raw = rp.PopRaw<DirectoryName>();
+        const auto name =
+            Common::StringFromFixedZeroTerminatedBuffer(name_raw.data(), name_raw.size());
+
+        LOG_DEBUG(Service_BCAT, "called, name={}", name);
+
+        backend.SynchronizeDirectory({system.CurrentProcess()->GetTitleID(),
+                                      GetCurrentBuildID(system.GetCurrentProcessBuildID())},
+                                     name,
+                                     progress.at(static_cast<std::size_t>(SyncType::Directory)));
+
+        IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+        rb.Push(RESULT_SUCCESS);
+        rb.PushIpcInterface(CreateProgressService(SyncType::Directory));
+    }
+
+    void SetPassphrase(Kernel::HLERequestContext& ctx) {
+        IPC::RequestParser rp{ctx};
+        const auto title_id = rp.PopRaw<u64>();
+
+        const auto passphrase_raw = ctx.ReadBuffer();
+
+        LOG_DEBUG(Service_BCAT, "called, title_id={:016X}, passphrase={}", title_id,
+                  Common::HexToString(passphrase_raw));
+
+        if (title_id == 0) {
+            LOG_ERROR(Service_BCAT, "Invalid title ID!");
+            IPC::ResponseBuilder rb{ctx, 2};
+            rb.Push(ERROR_INVALID_ARGUMENT);
+        }
+
+        if (passphrase_raw.size() > 0x40) {
+            LOG_ERROR(Service_BCAT, "Passphrase too large!");
+            IPC::ResponseBuilder rb{ctx, 2};
+            rb.Push(ERROR_INVALID_ARGUMENT);
+            return;
+        }
+
+        Passphrase passphrase{};
+        std::memcpy(passphrase.data(), passphrase_raw.data(),
+                    std::min(passphrase.size(), passphrase_raw.size()));
+
+        backend.SetPassphrase(title_id, passphrase);
+
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(RESULT_SUCCESS);
+    }
+
+    void ClearDeliveryCacheStorage(Kernel::HLERequestContext& ctx) {
+        IPC::RequestParser rp{ctx};
+        const auto title_id = rp.PopRaw<u64>();
+
+        LOG_DEBUG(Service_BCAT, "called, title_id={:016X}", title_id);
+
+        if (title_id == 0) {
+            LOG_ERROR(Service_BCAT, "Invalid title ID!");
+            IPC::ResponseBuilder rb{ctx, 2};
+            rb.Push(ERROR_INVALID_ARGUMENT);
+            return;
+        }
+
+        if (!backend.Clear(title_id)) {
+            LOG_ERROR(Service_BCAT, "Could not clear the directory successfully!");
+            IPC::ResponseBuilder rb{ctx, 2};
+            rb.Push(ERROR_FAILED_CLEAR_CACHE);
+            return;
+        }
+
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(RESULT_SUCCESS);
+    }
+
+    Core::System& system;
+    Backend& backend;
+
+    std::array<ProgressServiceBackend, static_cast<std::size_t>(SyncType::Count)> progress{
+        ProgressServiceBackend{"Normal"},
+        ProgressServiceBackend{"Directory"},
+    };
 };
 
 void Module::Interface::CreateBcatService(Kernel::HLERequestContext& ctx) {
@@ -37,20 +260,332 @@ void Module::Interface::CreateBcatService(Kernel::HLERequestContext& ctx) {
 
     IPC::ResponseBuilder rb{ctx, 2, 0, 1};
     rb.Push(RESULT_SUCCESS);
-    rb.PushIpcInterface<IBcatService>();
+    rb.PushIpcInterface<IBcatService>(system, *backend);
 }
 
-Module::Interface::Interface(std::shared_ptr<Module> module, const char* name)
-    : ServiceFramework(name), module(std::move(module)) {}
+class IDeliveryCacheFileService final : public ServiceFramework<IDeliveryCacheFileService> {
+public:
+    IDeliveryCacheFileService(FileSys::VirtualDir root_)
+        : ServiceFramework{"IDeliveryCacheFileService"}, root(std::move(root_)) {
+        // clang-format off
+        static const FunctionInfo functions[] = {
+            {0, &IDeliveryCacheFileService::Open, "Open"},
+            {1, &IDeliveryCacheFileService::Read, "Read"},
+            {2, &IDeliveryCacheFileService::GetSize, "GetSize"},
+            {3, &IDeliveryCacheFileService::GetDigest, "GetDigest"},
+        };
+        // clang-format on
+
+        RegisterHandlers(functions);
+    }
+
+private:
+    void Open(Kernel::HLERequestContext& ctx) {
+        IPC::RequestParser rp{ctx};
+        const auto dir_name_raw = rp.PopRaw<DirectoryName>();
+        const auto file_name_raw = rp.PopRaw<FileName>();
+
+        const auto dir_name =
+            Common::StringFromFixedZeroTerminatedBuffer(dir_name_raw.data(), dir_name_raw.size());
+        const auto file_name =
+            Common::StringFromFixedZeroTerminatedBuffer(file_name_raw.data(), file_name_raw.size());
+
+        LOG_DEBUG(Service_BCAT, "called, dir_name={}, file_name={}", dir_name, file_name);
+
+        if (!VerifyNameValidDir(ctx, dir_name_raw) || !VerifyNameValidFile(ctx, file_name_raw))
+            return;
+
+        if (current_file != nullptr) {
+            LOG_ERROR(Service_BCAT, "A file has already been opened on this interface!");
+            IPC::ResponseBuilder rb{ctx, 2};
+            rb.Push(ERROR_ENTITY_ALREADY_OPEN);
+            return;
+        }
+
+        const auto dir = root->GetSubdirectory(dir_name);
+
+        if (dir == nullptr) {
+            LOG_ERROR(Service_BCAT, "The directory of name={} couldn't be opened!", dir_name);
+            IPC::ResponseBuilder rb{ctx, 2};
+            rb.Push(ERROR_FAILED_OPEN_ENTITY);
+            return;
+        }
+
+        current_file = dir->GetFile(file_name);
+
+        if (current_file == nullptr) {
+            LOG_ERROR(Service_BCAT, "The file of name={} couldn't be opened!", file_name);
+            IPC::ResponseBuilder rb{ctx, 2};
+            rb.Push(ERROR_FAILED_OPEN_ENTITY);
+            return;
+        }
+
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(RESULT_SUCCESS);
+    }
+
+    void Read(Kernel::HLERequestContext& ctx) {
+        IPC::RequestParser rp{ctx};
+        const auto offset{rp.PopRaw<u64>()};
+
+        auto size = ctx.GetWriteBufferSize();
+
+        LOG_DEBUG(Service_BCAT, "called, offset={:016X}, size={:016X}", offset, size);
+
+        if (current_file == nullptr) {
+            LOG_ERROR(Service_BCAT, "There is no file currently open!");
+            IPC::ResponseBuilder rb{ctx, 2};
+            rb.Push(ERROR_NO_OPEN_ENTITY);
+        }
+
+        size = std::min<u64>(current_file->GetSize() - offset, size);
+        const auto buffer = current_file->ReadBytes(size, offset);
+        ctx.WriteBuffer(buffer);
+
+        IPC::ResponseBuilder rb{ctx, 4};
+        rb.Push(RESULT_SUCCESS);
+        rb.Push<u64>(buffer.size());
+    }
+
+    void GetSize(Kernel::HLERequestContext& ctx) {
+        LOG_DEBUG(Service_BCAT, "called");
+
+        if (current_file == nullptr) {
+            LOG_ERROR(Service_BCAT, "There is no file currently open!");
+            IPC::ResponseBuilder rb{ctx, 2};
+            rb.Push(ERROR_NO_OPEN_ENTITY);
+        }
+
+        IPC::ResponseBuilder rb{ctx, 4};
+        rb.Push(RESULT_SUCCESS);
+        rb.Push<u64>(current_file->GetSize());
+    }
+
+    void GetDigest(Kernel::HLERequestContext& ctx) {
+        LOG_DEBUG(Service_BCAT, "called");
+
+        if (current_file == nullptr) {
+            LOG_ERROR(Service_BCAT, "There is no file currently open!");
+            IPC::ResponseBuilder rb{ctx, 2};
+            rb.Push(ERROR_NO_OPEN_ENTITY);
+        }
+
+        IPC::ResponseBuilder rb{ctx, 6};
+        rb.Push(RESULT_SUCCESS);
+        rb.PushRaw(DigestFile(current_file));
+    }
+
+    FileSys::VirtualDir root;
+    FileSys::VirtualFile current_file;
+};
+
+class IDeliveryCacheDirectoryService final
+    : public ServiceFramework<IDeliveryCacheDirectoryService> {
+public:
+    IDeliveryCacheDirectoryService(FileSys::VirtualDir root_)
+        : ServiceFramework{"IDeliveryCacheDirectoryService"}, root(std::move(root_)) {
+        // clang-format off
+        static const FunctionInfo functions[] = {
+            {0, &IDeliveryCacheDirectoryService::Open, "Open"},
+            {1, &IDeliveryCacheDirectoryService::Read, "Read"},
+            {2, &IDeliveryCacheDirectoryService::GetCount, "GetCount"},
+        };
+        // clang-format on
+
+        RegisterHandlers(functions);
+    }
+
+private:
+    void Open(Kernel::HLERequestContext& ctx) {
+        IPC::RequestParser rp{ctx};
+        const auto name_raw = rp.PopRaw<DirectoryName>();
+        const auto name =
+            Common::StringFromFixedZeroTerminatedBuffer(name_raw.data(), name_raw.size());
+
+        LOG_DEBUG(Service_BCAT, "called, name={}", name);
+
+        if (!VerifyNameValidDir(ctx, name_raw))
+            return;
+
+        if (current_dir != nullptr) {
+            LOG_ERROR(Service_BCAT, "A file has already been opened on this interface!");
+            IPC::ResponseBuilder rb{ctx, 2};
+            rb.Push(ERROR_ENTITY_ALREADY_OPEN);
+            return;
+        }
+
+        current_dir = root->GetSubdirectory(name);
+
+        if (current_dir == nullptr) {
+            LOG_ERROR(Service_BCAT, "Failed to open the directory name={}!", name);
+            IPC::ResponseBuilder rb{ctx, 2};
+            rb.Push(ERROR_FAILED_OPEN_ENTITY);
+            return;
+        }
+
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(RESULT_SUCCESS);
+    }
+
+    void Read(Kernel::HLERequestContext& ctx) {
+        auto write_size = ctx.GetWriteBufferSize() / sizeof(DeliveryCacheDirectoryEntry);
+
+        LOG_DEBUG(Service_BCAT, "called, write_size={:016X}", write_size);
+
+        if (current_dir == nullptr) {
+            LOG_ERROR(Service_BCAT, "There is no open directory!");
+            IPC::ResponseBuilder rb{ctx, 2};
+            rb.Push(ERROR_NO_OPEN_ENTITY);
+            return;
+        }
+
+        const auto files = current_dir->GetFiles();
+        write_size = std::min<u64>(write_size, files.size());
+        std::vector<DeliveryCacheDirectoryEntry> entries(write_size);
+        std::transform(
+            files.begin(), files.begin() + write_size, entries.begin(), [](const auto& file) {
+                FileName name{};
+                std::memcpy(name.data(), file->GetName().data(),
+                            std::min(file->GetName().size(), name.size()));
+                return DeliveryCacheDirectoryEntry{name, file->GetSize(), DigestFile(file)};
+            });
+
+        ctx.WriteBuffer(entries);
+
+        IPC::ResponseBuilder rb{ctx, 3};
+        rb.Push(RESULT_SUCCESS);
+        rb.Push(static_cast<u32>(write_size * sizeof(DeliveryCacheDirectoryEntry)));
+    }
+
+    void GetCount(Kernel::HLERequestContext& ctx) {
+        LOG_DEBUG(Service_BCAT, "called");
+
+        if (current_dir == nullptr) {
+            LOG_ERROR(Service_BCAT, "There is no open directory!");
+            IPC::ResponseBuilder rb{ctx, 2};
+            rb.Push(ERROR_NO_OPEN_ENTITY);
+            return;
+        }
+
+        const auto files = current_dir->GetFiles();
+
+        IPC::ResponseBuilder rb{ctx, 3};
+        rb.Push(RESULT_SUCCESS);
+        rb.Push(static_cast<u32>(files.size()));
+    }
+
+    FileSys::VirtualDir root;
+    FileSys::VirtualDir current_dir;
+};
+
+class IDeliveryCacheStorageService final : public ServiceFramework<IDeliveryCacheStorageService> {
+public:
+    IDeliveryCacheStorageService(FileSys::VirtualDir root_)
+        : ServiceFramework{"IDeliveryCacheStorageService"}, root(std::move(root_)) {
+        // clang-format off
+        static const FunctionInfo functions[] = {
+            {0, &IDeliveryCacheStorageService::CreateFileService, "CreateFileService"},
+            {1, &IDeliveryCacheStorageService::CreateDirectoryService, "CreateDirectoryService"},
+            {10, &IDeliveryCacheStorageService::EnumerateDeliveryCacheDirectory, "EnumerateDeliveryCacheDirectory"},
+        };
+        // clang-format on
+
+        RegisterHandlers(functions);
+
+        for (const auto& subdir : root->GetSubdirectories()) {
+            DirectoryName name{};
+            std::memcpy(name.data(), subdir->GetName().data(),
+                        std::min(sizeof(DirectoryName) - 1, subdir->GetName().size()));
+            entries.push_back(name);
+        }
+    }
+
+private:
+    void CreateFileService(Kernel::HLERequestContext& ctx) {
+        LOG_DEBUG(Service_BCAT, "called");
+
+        IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+        rb.Push(RESULT_SUCCESS);
+        rb.PushIpcInterface<IDeliveryCacheFileService>(root);
+    }
+
+    void CreateDirectoryService(Kernel::HLERequestContext& ctx) {
+        LOG_DEBUG(Service_BCAT, "called");
+
+        IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+        rb.Push(RESULT_SUCCESS);
+        rb.PushIpcInterface<IDeliveryCacheDirectoryService>(root);
+    }
+
+    void EnumerateDeliveryCacheDirectory(Kernel::HLERequestContext& ctx) {
+        auto size = ctx.GetWriteBufferSize() / sizeof(DirectoryName);
+
+        LOG_DEBUG(Service_BCAT, "called, size={:016X}", size);
+
+        size = std::min<u64>(size, entries.size() - next_read_index);
+        ctx.WriteBuffer(entries.data() + next_read_index, size * sizeof(DirectoryName));
+        next_read_index += size;
+
+        IPC::ResponseBuilder rb{ctx, 3};
+        rb.Push(RESULT_SUCCESS);
+        rb.Push(static_cast<u32>(size));
+    }
+
+    FileSys::VirtualDir root;
+    std::vector<DirectoryName> entries;
+    u64 next_read_index = 0;
+};
+
+void Module::Interface::CreateDeliveryCacheStorageService(Kernel::HLERequestContext& ctx) {
+    LOG_DEBUG(Service_BCAT, "called");
+
+    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    rb.Push(RESULT_SUCCESS);
+    rb.PushIpcInterface<IDeliveryCacheStorageService>(
+        fsc.GetBCATDirectory(system.CurrentProcess()->GetTitleID()));
+}
+
+void Module::Interface::CreateDeliveryCacheStorageServiceWithApplicationId(
+    Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto title_id = rp.PopRaw<u64>();
+
+    LOG_DEBUG(Service_BCAT, "called, title_id={:016X}", title_id);
+
+    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    rb.Push(RESULT_SUCCESS);
+    rb.PushIpcInterface<IDeliveryCacheStorageService>(fsc.GetBCATDirectory(title_id));
+}
+
+std::unique_ptr<Backend> CreateBackendFromSettings(DirectoryGetter getter) {
+    const auto backend = Settings::values.bcat_backend;
+
+#ifdef YUZU_ENABLE_BOXCAT
+    if (backend == "boxcat")
+        return std::make_unique<Boxcat>(std::move(getter));
+#endif
+
+    return std::make_unique<NullBackend>(std::move(getter));
+}
+
+Module::Interface::Interface(Core::System& system_, std::shared_ptr<Module> module_,
+                             FileSystem::FileSystemController& fsc_, const char* name)
+    : ServiceFramework(name), fsc{fsc_}, module{std::move(module_)},
+      backend{CreateBackendFromSettings([&fsc_](u64 tid) { return fsc_.GetBCATDirectory(tid); })},
+      system{system_} {}
 
 Module::Interface::~Interface() = default;
 
-void InstallInterfaces(SM::ServiceManager& service_manager) {
+void InstallInterfaces(Core::System& system) {
     auto module = std::make_shared<Module>();
-    std::make_shared<BCAT>(module, "bcat:a")->InstallAsService(service_manager);
-    std::make_shared<BCAT>(module, "bcat:m")->InstallAsService(service_manager);
-    std::make_shared<BCAT>(module, "bcat:u")->InstallAsService(service_manager);
-    std::make_shared<BCAT>(module, "bcat:s")->InstallAsService(service_manager);
+    std::make_shared<BCAT>(system, module, system.GetFileSystemController(), "bcat:a")
+        ->InstallAsService(system.ServiceManager());
+    std::make_shared<BCAT>(system, module, system.GetFileSystemController(), "bcat:m")
+        ->InstallAsService(system.ServiceManager());
+    std::make_shared<BCAT>(system, module, system.GetFileSystemController(), "bcat:u")
+        ->InstallAsService(system.ServiceManager());
+    std::make_shared<BCAT>(system, module, system.GetFileSystemController(), "bcat:s")
+        ->InstallAsService(system.ServiceManager());
 }
 
 } // namespace Service::BCAT

src/core/hle/service/bcat/module.h

@@ -6,23 +6,46 @@
 
 #include "core/hle/service/service.h"
 
-namespace Service::BCAT {
+namespace Core {
+class System;
+}
+
+namespace Service {
+
+namespace FileSystem {
+class FileSystemController;
+} // namespace FileSystem
+
+namespace BCAT {
+
+class Backend;
 
 class Module final {
 public:
     class Interface : public ServiceFramework<Interface> {
     public:
-        explicit Interface(std::shared_ptr<Module> module, const char* name);
+        explicit Interface(Core::System& system_, std::shared_ptr<Module> module_,
+                           FileSystem::FileSystemController& fsc_, const char* name);
         ~Interface() override;
 
         void CreateBcatService(Kernel::HLERequestContext& ctx);
+        void CreateDeliveryCacheStorageService(Kernel::HLERequestContext& ctx);
+        void CreateDeliveryCacheStorageServiceWithApplicationId(Kernel::HLERequestContext& ctx);
 
     protected:
+        FileSystem::FileSystemController& fsc;
+
         std::shared_ptr<Module> module;
+        std::unique_ptr<Backend> backend;
+
+    private:
+        Core::System& system;
     };
 };
 
 /// Registers all BCAT services with the specified service manager.
-void InstallInterfaces(SM::ServiceManager& service_manager);
+void InstallInterfaces(Core::System& system);
 
-} // namespace Service::BCAT
+} // namespace BCAT
+
+} // namespace Service

src/core/hle/service/fatal/fatal.cpp

@@ -66,7 +66,7 @@ enum class FatalType : u32 {
 
 static void GenerateErrorReport(Core::System& system, ResultCode error_code,
                                 const FatalInfo& info) {
-    const auto title_id = Core::CurrentProcess()->GetTitleID();
+    const auto title_id = system.CurrentProcess()->GetTitleID();
     std::string crash_report = fmt::format(
         "Yuzu {}-{} crash report\n"
         "Title ID:                        {:016x}\n"

src/core/hle/service/filesystem/filesystem.cpp

@@ -241,7 +241,7 @@ ResultVal<FileSys::EntryType> VfsDirectoryServiceWrapper::GetEntryType(
     return FileSys::ERROR_PATH_NOT_FOUND;
 }
 
-FileSystemController::FileSystemController() = default;
+FileSystemController::FileSystemController(Core::System& system_) : system{system_} {}
 
 FileSystemController::~FileSystemController() = default;
 
@@ -290,7 +290,7 @@ ResultVal<FileSys::VirtualFile> FileSystemController::OpenRomFSCurrentProcess()
         return ResultCode(-1);
     }
 
-    return romfs_factory->OpenCurrentProcess();
+    return romfs_factory->OpenCurrentProcess(system.CurrentProcess()->GetTitleID());
 }
 
 ResultVal<FileSys::VirtualFile> FileSystemController::OpenRomFS(
@@ -447,10 +447,10 @@ FileSys::SaveDataSize FileSystemController::ReadSaveDataSize(FileSys::SaveDataTy
         FileSys::SaveDataSize new_size{SUFFICIENT_SAVE_DATA_SIZE, SUFFICIENT_SAVE_DATA_SIZE};
 
         FileSys::NACP nacp;
-        const auto res = Core::System::GetInstance().GetAppLoader().ReadControlData(nacp);
+        const auto res = system.GetAppLoader().ReadControlData(nacp);
 
         if (res != Loader::ResultStatus::Success) {
-            FileSys::PatchManager pm{Core::CurrentProcess()->GetTitleID()};
+            FileSys::PatchManager pm{system.CurrentProcess()->GetTitleID()};
             auto [nacp_unique, discard] = pm.GetControlMetadata();
 
             if (nacp_unique != nullptr) {
@@ -674,6 +674,15 @@ FileSys::VirtualDir FileSystemController::GetModificationDumpRoot(u64 title_id)
     return bis_factory->GetModificationDumpRoot(title_id);
 }
 
+FileSys::VirtualDir FileSystemController::GetBCATDirectory(u64 title_id) const {
+    LOG_TRACE(Service_FS, "Opening BCAT root for tid={:016X}", title_id);
+
+    if (bis_factory == nullptr)
+        return nullptr;
+
+    return bis_factory->GetBCATDirectory(title_id);
+}
+
 void FileSystemController::CreateFactories(FileSys::VfsFilesystem& vfs, bool overwrite) {
     if (overwrite) {
         bis_factory = nullptr;
@@ -693,10 +702,10 @@ void FileSystemController::CreateFactories(FileSys::VfsFilesystem& vfs, bool ove
     if (bis_factory == nullptr) {
         bis_factory =
             std::make_unique<FileSys::BISFactory>(nand_directory, load_directory, dump_directory);
-        Core::System::GetInstance().RegisterContentProvider(
-            FileSys::ContentProviderUnionSlot::SysNAND, bis_factory->GetSystemNANDContents());
-        Core::System::GetInstance().RegisterContentProvider(
-            FileSys::ContentProviderUnionSlot::UserNAND, bis_factory->GetUserNANDContents());
+        system.RegisterContentProvider(FileSys::ContentProviderUnionSlot::SysNAND,
+                                       bis_factory->GetSystemNANDContents());
+        system.RegisterContentProvider(FileSys::ContentProviderUnionSlot::UserNAND,
+                                       bis_factory->GetUserNANDContents());
     }
 
     if (save_data_factory == nullptr) {
@@ -705,8 +714,8 @@ void FileSystemController::CreateFactories(FileSys::VfsFilesystem& vfs, bool ove
 
     if (sdmc_factory == nullptr) {
         sdmc_factory = std::make_unique<FileSys::SDMCFactory>(std::move(sd_directory));
-        Core::System::GetInstance().RegisterContentProvider(FileSys::ContentProviderUnionSlot::SDMC,
-                                                            sdmc_factory->GetSDMCContents());
+        system.RegisterContentProvider(FileSys::ContentProviderUnionSlot::SDMC,
+                                       sdmc_factory->GetSDMCContents());
     }
 }
 

src/core/hle/service/filesystem/filesystem.h

@@ -10,6 +10,10 @@
 #include "core/file_sys/vfs.h"
 #include "core/hle/result.h"
 
+namespace Core {
+class System;
+}
+
 namespace FileSys {
 class BISFactory;
 class RegisteredCache;
@@ -52,7 +56,7 @@ enum class ImageDirectoryId : u32 {
 
 class FileSystemController {
 public:
-    FileSystemController();
+    explicit FileSystemController(Core::System& system_);
     ~FileSystemController();
 
     ResultCode RegisterRomFS(std::unique_ptr<FileSys::RomFSFactory>&& factory);
@@ -110,6 +114,8 @@ public:
     FileSys::VirtualDir GetModificationLoadRoot(u64 title_id) const;
     FileSys::VirtualDir GetModificationDumpRoot(u64 title_id) const;
 
+    FileSys::VirtualDir GetBCATDirectory(u64 title_id) const;
+
     // Creates the SaveData, SDMC, and BIS Factories. Should be called once and before any function
     // above is called.
     void CreateFactories(FileSys::VfsFilesystem& vfs, bool overwrite = true);
@@ -123,6 +129,8 @@ private:
     std::unique_ptr<FileSys::XCI> gamecard;
     std::unique_ptr<FileSys::RegisteredCache> gamecard_registered;
     std::unique_ptr<FileSys::PlaceholderCache> gamecard_placeholder;
+
+    Core::System& system;
 };
 
 void InstallInterfaces(Core::System& system);

src/core/hle/service/filesystem/fsp_srv.cpp

@@ -803,7 +803,7 @@ void FSP_SRV::CreateSaveDataFileSystem(Kernel::HLERequestContext& ctx) {
     IPC::RequestParser rp{ctx};
 
     auto save_struct = rp.PopRaw<FileSys::SaveDataDescriptor>();
-    auto save_create_struct = rp.PopRaw<std::array<u8, 0x40>>();
+    [[maybe_unused]] auto save_create_struct = rp.PopRaw<std::array<u8, 0x40>>();
     u128 uid = rp.PopRaw<u128>();
 
     LOG_DEBUG(Service_FS, "called save_struct = {}, uid = {:016X}{:016X}", save_struct.DebugInfo(),

src/core/hle/service/friend/friend.cpp

@@ -237,7 +237,6 @@ private:
     };
 
     Common::UUID uuid;
-    bool is_event_created = false;
     Kernel::EventPair notification_event;
     std::queue<SizedNotificationInfo> notifications;
     States states{};

src/core/hle/service/hid/controllers/debug_pad.cpp

@@ -11,11 +11,10 @@
 namespace Service::HID {
 
 constexpr s32 HID_JOYSTICK_MAX = 0x7fff;
-constexpr s32 HID_JOYSTICK_MIN = -0x7fff;
+[[maybe_unused]] constexpr s32 HID_JOYSTICK_MIN = -0x7fff;
 enum class JoystickId : std::size_t { Joystick_Left, Joystick_Right };
 
-Controller_DebugPad::Controller_DebugPad(Core::System& system)
-    : ControllerBase(system), system(system) {}
+Controller_DebugPad::Controller_DebugPad(Core::System& system) : ControllerBase(system) {}
 Controller_DebugPad::~Controller_DebugPad() = default;
 
 void Controller_DebugPad::OnInit() {}

src/core/hle/service/hid/controllers/debug_pad.h

@@ -89,6 +89,5 @@ private:
         buttons;
     std::array<std::unique_ptr<Input::AnalogDevice>, Settings::NativeAnalog::NUM_STICKS_HID>
         analogs;
-    Core::System& system;
 };
 } // namespace Service::HID

src/core/hle/service/hid/controllers/gesture.cpp

@@ -10,8 +10,7 @@
 namespace Service::HID {
 constexpr std::size_t SHARED_MEMORY_OFFSET = 0x3BA00;
 
-Controller_Gesture::Controller_Gesture(Core::System& system)
-    : ControllerBase(system), system(system) {}
+Controller_Gesture::Controller_Gesture(Core::System& system) : ControllerBase(system) {}
 Controller_Gesture::~Controller_Gesture() = default;
 
 void Controller_Gesture::OnInit() {}

src/core/hle/service/hid/controllers/gesture.h

@@ -59,6 +59,5 @@ private:
         std::array<GestureState, 17> gesture_states;
     };
     SharedMemory shared_memory{};
-    Core::System& system;
 };
 } // namespace Service::HID

src/core/hle/service/hid/controllers/keyboard.cpp

@@ -12,8 +12,7 @@ namespace Service::HID {
 constexpr std::size_t SHARED_MEMORY_OFFSET = 0x3800;
 constexpr u8 KEYS_PER_BYTE = 8;
 
-Controller_Keyboard::Controller_Keyboard(Core::System& system)
-    : ControllerBase(system), system(system) {}
+Controller_Keyboard::Controller_Keyboard(Core::System& system) : ControllerBase(system) {}
 Controller_Keyboard::~Controller_Keyboard() = default;
 
 void Controller_Keyboard::OnInit() {}

src/core/hle/service/hid/controllers/keyboard.h

@@ -53,6 +53,5 @@ private:
         keyboard_keys;
     std::array<std::unique_ptr<Input::ButtonDevice>, Settings::NativeKeyboard::NumKeyboardMods>
         keyboard_mods;
-    Core::System& system;
 };
 } // namespace Service::HID

src/core/hle/service/hid/controllers/mouse.cpp

@@ -11,7 +11,7 @@
 namespace Service::HID {
 constexpr std::size_t SHARED_MEMORY_OFFSET = 0x3400;
 
-Controller_Mouse::Controller_Mouse(Core::System& system) : ControllerBase(system), system(system) {}
+Controller_Mouse::Controller_Mouse(Core::System& system) : ControllerBase(system) {}
 Controller_Mouse::~Controller_Mouse() = default;
 
 void Controller_Mouse::OnInit() {}

src/core/hle/service/hid/controllers/mouse.h

@@ -53,6 +53,5 @@ private:
     std::unique_ptr<Input::MouseDevice> mouse_device;
     std::array<std::unique_ptr<Input::ButtonDevice>, Settings::NativeMouseButton::NumMouseButtons>
         mouse_button_devices;
-    Core::System& system;
 };
 } // namespace Service::HID

src/core/hle/service/hid/controllers/npad.cpp

@@ -20,7 +20,7 @@
 
 namespace Service::HID {
 constexpr s32 HID_JOYSTICK_MAX = 0x7fff;
-constexpr s32 HID_JOYSTICK_MIN = -0x7fff;
+[[maybe_unused]] constexpr s32 HID_JOYSTICK_MIN = -0x7fff;
 constexpr std::size_t NPAD_OFFSET = 0x9A00;
 constexpr u32 BATTERY_FULL = 2;
 constexpr u32 MAX_NPAD_ID = 7;
@@ -105,6 +105,8 @@ void Controller_NPad::InitNewlyAddedControler(std::size_t controller_idx) {
     controller.joy_styles.raw = 0; // Zero out
     controller.device_type.raw = 0;
     switch (controller_type) {
+    case NPadControllerType::None:
+        UNREACHABLE();
     case NPadControllerType::Handheld:
         controller.joy_styles.handheld.Assign(1);
         controller.device_type.handheld.Assign(1);
@@ -239,7 +241,7 @@ void Controller_NPad::OnRelease() {}
 
 void Controller_NPad::RequestPadStateUpdate(u32 npad_id) {
     const auto controller_idx = NPadIdToIndex(npad_id);
-    const auto controller_type = connected_controllers[controller_idx].type;
+    [[maybe_unused]] const auto controller_type = connected_controllers[controller_idx].type;
     if (!connected_controllers[controller_idx].is_connected) {
         return;
     }
@@ -346,6 +348,8 @@ void Controller_NPad::OnUpdate(const Core::Timing::CoreTiming& core_timing, u8*
         libnx_entry.connection_status.raw = 0;
 
         switch (controller_type) {
+        case NPadControllerType::None:
+            UNREACHABLE();
         case NPadControllerType::Handheld:
             handheld_entry.connection_status.raw = 0;
             handheld_entry.connection_status.IsWired.Assign(1);

src/core/hle/service/hid/controllers/stubbed.cpp

@@ -9,8 +9,7 @@
 
 namespace Service::HID {
 
-Controller_Stubbed::Controller_Stubbed(Core::System& system)
-    : ControllerBase(system), system(system) {}
+Controller_Stubbed::Controller_Stubbed(Core::System& system) : ControllerBase(system) {}
 Controller_Stubbed::~Controller_Stubbed() = default;
 
 void Controller_Stubbed::OnInit() {}

src/core/hle/service/hid/controllers/stubbed.h

@@ -30,6 +30,5 @@ public:
 private:
     bool smart_update{};
     std::size_t common_offset{};
-    Core::System& system;
 };
 } // namespace Service::HID

src/core/hle/service/hid/controllers/touchscreen.cpp

@@ -13,8 +13,7 @@
 namespace Service::HID {
 constexpr std::size_t SHARED_MEMORY_OFFSET = 0x400;
 
-Controller_Touchscreen::Controller_Touchscreen(Core::System& system)
-    : ControllerBase(system), system(system) {}
+Controller_Touchscreen::Controller_Touchscreen(Core::System& system) : ControllerBase(system) {}
 Controller_Touchscreen::~Controller_Touchscreen() = default;
 
 void Controller_Touchscreen::OnInit() {}

src/core/hle/service/hid/controllers/touchscreen.h

@@ -69,6 +69,5 @@ private:
     TouchScreenSharedMemory shared_memory{};
     std::unique_ptr<Input::TouchDevice> touch_device;
     s64_le last_touch{};
-    Core::System& system;
 };
 } // namespace Service::HID

src/core/hle/service/hid/controllers/xpad.cpp

@@ -10,7 +10,7 @@
 namespace Service::HID {
 constexpr std::size_t SHARED_MEMORY_OFFSET = 0x3C00;
 
-Controller_XPad::Controller_XPad(Core::System& system) : ControllerBase(system), system(system) {}
+Controller_XPad::Controller_XPad(Core::System& system) : ControllerBase(system) {}
 Controller_XPad::~Controller_XPad() = default;
 
 void Controller_XPad::OnInit() {}

src/core/hle/service/hid/controllers/xpad.h

@@ -56,6 +56,5 @@ private:
     };
     static_assert(sizeof(SharedMemory) == 0x1000, "SharedMemory is an invalid size");
     SharedMemory shared_memory{};
-    Core::System& system;
 };
 } // namespace Service::HID

src/core/hle/service/hid/hid.cpp

@@ -38,8 +38,10 @@ namespace Service::HID {
 // Updating period for each HID device.
 // TODO(ogniK): Find actual polling rate of hid
 constexpr s64 pad_update_ticks = static_cast<s64>(Core::Timing::BASE_CLOCK_RATE / 66);
-constexpr s64 accelerometer_update_ticks = static_cast<s64>(Core::Timing::BASE_CLOCK_RATE / 100);
-constexpr s64 gyroscope_update_ticks = static_cast<s64>(Core::Timing::BASE_CLOCK_RATE / 100);
+[[maybe_unused]] constexpr s64 accelerometer_update_ticks =
+    static_cast<s64>(Core::Timing::BASE_CLOCK_RATE / 100);
+[[maybe_unused]] constexpr s64 gyroscope_update_ticks =
+    static_cast<s64>(Core::Timing::BASE_CLOCK_RATE / 100);
 constexpr std::size_t SHARED_MEMORY_SIZE = 0x40000;
 
 IAppletResource::IAppletResource(Core::System& system)
@@ -193,7 +195,7 @@ Hid::Hid(Core::System& system) : ServiceFramework("hid"), system(system) {
         {101, &Hid::GetSupportedNpadStyleSet, "GetSupportedNpadStyleSet"},
         {102, &Hid::SetSupportedNpadIdType, "SetSupportedNpadIdType"},
         {103, &Hid::ActivateNpad, "ActivateNpad"},
-        {104, nullptr, "DeactivateNpad"},
+        {104, &Hid::DeactivateNpad, "DeactivateNpad"},
         {106, &Hid::AcquireNpadStyleSetUpdateEventHandle, "AcquireNpadStyleSetUpdateEventHandle"},
         {107, &Hid::DisconnectNpad, "DisconnectNpad"},
         {108, &Hid::GetPlayerLedPattern, "GetPlayerLedPattern"},
@@ -468,6 +470,17 @@ void Hid::ActivateNpad(Kernel::HLERequestContext& ctx) {
     applet_resource->ActivateController(HidController::NPad);
 }
 
+void Hid::DeactivateNpad(Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto applet_resource_user_id{rp.Pop<u64>()};
+
+    LOG_DEBUG(Service_HID, "called, applet_resource_user_id={}", applet_resource_user_id);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(RESULT_SUCCESS);
+    applet_resource->DeactivateController(HidController::NPad);
+}
+
 void Hid::AcquireNpadStyleSetUpdateEventHandle(Kernel::HLERequestContext& ctx) {
     IPC::RequestParser rp{ctx};
     const auto npad_id{rp.Pop<u32>()};

src/core/hle/service/hid/hid.h

@@ -99,6 +99,7 @@ private:
     void GetSupportedNpadStyleSet(Kernel::HLERequestContext& ctx);
     void SetSupportedNpadIdType(Kernel::HLERequestContext& ctx);
     void ActivateNpad(Kernel::HLERequestContext& ctx);
+    void DeactivateNpad(Kernel::HLERequestContext& ctx);
     void AcquireNpadStyleSetUpdateEventHandle(Kernel::HLERequestContext& ctx);
     void DisconnectNpad(Kernel::HLERequestContext& ctx);
     void GetPlayerLedPattern(Kernel::HLERequestContext& ctx);

src/core/hle/service/ldr/ldr.cpp

@@ -163,7 +163,7 @@ public:
             return;
         }
 
-        if (Core::CurrentProcess()->GetTitleID() != header.title_id) {
+        if (system.CurrentProcess()->GetTitleID() != header.title_id) {
             LOG_ERROR(Service_LDR,
                       "Attempting to load NRR with title ID other than current process. (actual "
                       "{:016X})!",
@@ -327,7 +327,7 @@ public:
         }
 
         // Load NRO as new executable module
-        auto* process = Core::CurrentProcess();
+        auto* process = system.CurrentProcess();
         auto& vm_manager = process->VMManager();
         auto map_address = vm_manager.FindFreeRegion(nro_size + bss_size);
 
@@ -411,7 +411,7 @@ public:
             return;
         }
 
-        auto& vm_manager = Core::CurrentProcess()->VMManager();
+        auto& vm_manager = system.CurrentProcess()->VMManager();
         const auto& nro_info = iter->second;
 
         // Unmap the mirrored memory

src/core/hle/service/nfp/nfp.cpp

@@ -18,8 +18,8 @@
 namespace Service::NFP {
 
 namespace ErrCodes {
-constexpr ResultCode ERR_TAG_FAILED(ErrorModule::NFP,
-                                    -1); // TODO(ogniK): Find the actual error code
+[[maybe_unused]] constexpr ResultCode ERR_TAG_FAILED(ErrorModule::NFP,
+                                                     -1); // TODO(ogniK): Find the actual error code
 constexpr ResultCode ERR_NO_APPLICATION_AREA(ErrorModule::NFP, 152);
 } // namespace ErrCodes
 
@@ -35,7 +35,7 @@ Module::Interface::~Interface() = default;
 class IUser final : public ServiceFramework<IUser> {
 public:
     IUser(Module::Interface& nfp_interface, Core::System& system)
-        : ServiceFramework("NFP::IUser"), nfp_interface(nfp_interface), system(system) {
+        : ServiceFramework("NFP::IUser"), nfp_interface(nfp_interface) {
         static const FunctionInfo functions[] = {
             {0, &IUser::Initialize, "Initialize"},
             {1, &IUser::Finalize, "Finalize"},
@@ -183,6 +183,8 @@ private:
         case DeviceState::TagRemoved:
             device_state = DeviceState::Initialized;
             break;
+        default:
+            break;
         }
         IPC::ResponseBuilder rb{ctx, 2};
         rb.Push(RESULT_SUCCESS);
@@ -324,7 +326,6 @@ private:
     Kernel::EventPair deactivate_event;
     Kernel::EventPair availability_change_event;
     const Module::Interface& nfp_interface;
-    Core::System& system;
 };
 
 void Module::Interface::CreateUserInterface(Kernel::HLERequestContext& ctx) {

src/core/hle/service/nifm/nifm.cpp

@@ -12,6 +12,13 @@
 
 namespace Service::NIFM {
 
+enum class RequestState : u32 {
+    NotSubmitted = 1,
+    Error = 1, ///< The duplicate 1 is intentional; it means both not submitted and error on HW.
+    Pending = 2,
+    Connected = 3,
+};
+
 class IScanRequest final : public ServiceFramework<IScanRequest> {
 public:
     explicit IScanRequest() : ServiceFramework("IScanRequest") {
@@ -81,7 +88,7 @@ private:
 
         IPC::ResponseBuilder rb{ctx, 3};
         rb.Push(RESULT_SUCCESS);
-        rb.Push<u32>(0);
+        rb.PushEnum(RequestState::Connected);
     }
 
     void GetResult(Kernel::HLERequestContext& ctx) {
@@ -189,14 +196,14 @@ private:
 
         IPC::ResponseBuilder rb{ctx, 3};
         rb.Push(RESULT_SUCCESS);
-        rb.Push<u8>(0);
+        rb.Push<u8>(1);
     }
     void IsAnyInternetRequestAccepted(Kernel::HLERequestContext& ctx) {
         LOG_WARNING(Service_NIFM, "(STUBBED) called");
 
         IPC::ResponseBuilder rb{ctx, 3};
         rb.Push(RESULT_SUCCESS);
-        rb.Push<u8>(0);
+        rb.Push<u8>(1);
     }
     Core::System& system;
 };

src/core/hle/service/ns/pl_u.cpp

@@ -324,14 +324,14 @@ void PL_U::GetSharedMemoryAddressOffset(Kernel::HLERequestContext& ctx) {
 void PL_U::GetSharedMemoryNativeHandle(Kernel::HLERequestContext& ctx) {
     // Map backing memory for the font data
     LOG_DEBUG(Service_NS, "called");
-    Core::CurrentProcess()->VMManager().MapMemoryBlock(SHARED_FONT_MEM_VADDR, impl->shared_font, 0,
-                                                       SHARED_FONT_MEM_SIZE,
-                                                       Kernel::MemoryState::Shared);
+    system.CurrentProcess()->VMManager().MapMemoryBlock(SHARED_FONT_MEM_VADDR, impl->shared_font, 0,
+                                                        SHARED_FONT_MEM_SIZE,
+                                                        Kernel::MemoryState::Shared);
 
     // Create shared font memory object
     auto& kernel = system.Kernel();
     impl->shared_font_mem = Kernel::SharedMemory::Create(
-        kernel, Core::CurrentProcess(), SHARED_FONT_MEM_SIZE, Kernel::MemoryPermission::ReadWrite,
+        kernel, system.CurrentProcess(), SHARED_FONT_MEM_SIZE, Kernel::MemoryPermission::ReadWrite,
         Kernel::MemoryPermission::Read, SHARED_FONT_MEM_VADDR, Kernel::MemoryRegion::BASE,
         "PL_U:shared_font_mem");
 

src/core/hle/service/nvdrv/devices/nvhost_as_gpu.cpp

@@ -45,6 +45,8 @@ u32 nvhost_as_gpu::ioctl(Ioctl command, const std::vector<u8>& input, const std:
         return GetVARegions(input, output);
     case IoctlCommand::IocUnmapBufferCommand:
         return UnmapBuffer(input, output);
+    default:
+        break;
     }
 
     if (static_cast<IoctlCommand>(command.cmd.Value()) == IoctlCommand::IocRemapCommand)

src/core/hle/service/nvdrv/devices/nvhost_ctrl.cpp

@@ -38,9 +38,10 @@ u32 nvhost_ctrl::ioctl(Ioctl command, const std::vector<u8>& input, const std::v
         return IocCtrlEventUnregister(input, output);
     case IoctlCommand::IocCtrlEventSignalCommand:
         return IocCtrlEventSignal(input, output);
+    default:
+        UNIMPLEMENTED_MSG("Unimplemented ioctl");
+        return 0;
     }
-    UNIMPLEMENTED_MSG("Unimplemented ioctl");
-    return 0;
 }
 
 u32 nvhost_ctrl::NvOsGetConfigU32(const std::vector<u8>& input, std::vector<u8>& output) {

src/core/hle/service/nvdrv/devices/nvhost_ctrl_gpu.cpp

@@ -40,9 +40,10 @@ u32 nvhost_ctrl_gpu::ioctl(Ioctl command, const std::vector<u8>& input,
         return FlushL2(input, output);
     case IoctlCommand::IocGetGpuTime:
         return GetGpuTime(input, output);
+    default:
+        UNIMPLEMENTED_MSG("Unimplemented ioctl");
+        return 0;
     }
-    UNIMPLEMENTED_MSG("Unimplemented ioctl");
-    return 0;
 }
 
 u32 nvhost_ctrl_gpu::GetCharacteristics(const std::vector<u8>& input, std::vector<u8>& output,

src/core/hle/service/nvdrv/devices/nvhost_gpu.cpp

@@ -44,6 +44,8 @@ u32 nvhost_gpu::ioctl(Ioctl command, const std::vector<u8>& input, const std::ve
         return GetWaitbase(input, output);
     case IoctlCommand::IocChannelSetTimeoutCommand:
         return ChannelSetTimeout(input, output);
+    default:
+        break;
     }
 
     if (command.group == NVGPU_IOCTL_MAGIC) {

src/core/hle/service/service.cpp

@@ -208,7 +208,7 @@ void Init(std::shared_ptr<SM::ServiceManager>& sm, Core::System& system) {
     AOC::InstallInterfaces(*sm, system);
     APM::InstallInterfaces(system);
     Audio::InstallInterfaces(*sm, system);
-    BCAT::InstallInterfaces(*sm);
+    BCAT::InstallInterfaces(system);
     BPC::InstallInterfaces(*sm);
     BtDrv::InstallInterfaces(*sm, system);
     BTM::InstallInterfaces(*sm, system);

src/core/loader/nso.cpp

@@ -150,6 +150,7 @@ std::optional<VAddr> AppLoader_NSO::LoadModule(Kernel::Process& process,
     // Apply cheats if they exist and the program has a valid title ID
     if (pm) {
         auto& system = Core::System::GetInstance();
+        system.SetCurrentProcessBuildID(nso_header.build_id);
         const auto cheats = pm->CreateCheatList(system, nso_header.build_id);
         if (!cheats.empty()) {
             system.RegisterCheatList(cheats, nso_header.build_id, load_base, image_size);

src/core/memory.cpp

@@ -146,7 +146,7 @@ static u8* GetPointerFromVMA(const Kernel::Process& process, VAddr vaddr) {
  * using a VMA from the current process.
  */
 static u8* GetPointerFromVMA(VAddr vaddr) {
-    return GetPointerFromVMA(*Core::CurrentProcess(), vaddr);
+    return GetPointerFromVMA(*Core::System::GetInstance().CurrentProcess(), vaddr);
 }
 
 template <typename T>
@@ -226,7 +226,7 @@ bool IsValidVirtualAddress(const Kernel::Process& process, const VAddr vaddr) {
 }
 
 bool IsValidVirtualAddress(const VAddr vaddr) {
-    return IsValidVirtualAddress(*Core::CurrentProcess(), vaddr);
+    return IsValidVirtualAddress(*Core::System::GetInstance().CurrentProcess(), vaddr);
 }
 
 bool IsKernelVirtualAddress(const VAddr vaddr) {
@@ -387,7 +387,7 @@ void ReadBlock(const Kernel::Process& process, const VAddr src_addr, void* dest_
 }
 
 void ReadBlock(const VAddr src_addr, void* dest_buffer, const std::size_t size) {
-    ReadBlock(*Core::CurrentProcess(), src_addr, dest_buffer, size);
+    ReadBlock(*Core::System::GetInstance().CurrentProcess(), src_addr, dest_buffer, size);
 }
 
 void Write8(const VAddr addr, const u8 data) {
@@ -450,7 +450,7 @@ void WriteBlock(const Kernel::Process& process, const VAddr dest_addr, const voi
 }
 
 void WriteBlock(const VAddr dest_addr, const void* src_buffer, const std::size_t size) {
-    WriteBlock(*Core::CurrentProcess(), dest_addr, src_buffer, size);
+    WriteBlock(*Core::System::GetInstance().CurrentProcess(), dest_addr, src_buffer, size);
 }
 
 void ZeroBlock(const Kernel::Process& process, const VAddr dest_addr, const std::size_t size) {
@@ -539,7 +539,7 @@ void CopyBlock(const Kernel::Process& process, VAddr dest_addr, VAddr src_addr,
 }
 
 void CopyBlock(VAddr dest_addr, VAddr src_addr, std::size_t size) {
-    CopyBlock(*Core::CurrentProcess(), dest_addr, src_addr, size);
+    CopyBlock(*Core::System::GetInstance().CurrentProcess(), dest_addr, src_addr, size);
 }
 
 } // namespace Memory

src/core/settings.cpp

@@ -103,6 +103,8 @@ void LogSettings() {
     LogSetting("Debugging_UseGdbstub", Settings::values.use_gdbstub);
     LogSetting("Debugging_GdbstubPort", Settings::values.gdbstub_port);
     LogSetting("Debugging_ProgramArgs", Settings::values.program_args);
+    LogSetting("Services_BCATBackend", Settings::values.bcat_backend);
+    LogSetting("Services_BCATBoxcatLocal", Settings::values.bcat_boxcat_local);
 }
 
 } // namespace Settings

src/core/settings.h

@@ -448,6 +448,10 @@ struct Values {
     bool reporting_services;
     bool quest_flag;
 
+    // BCAT
+    std::string bcat_backend;
+    bool bcat_boxcat_local;
+
     // WebService
     bool enable_telemetry;
     std::string web_api_url;

src/video_core/CMakeLists.txt

@@ -105,9 +105,15 @@ add_library(video_core STATIC
     shader/decode/warp.cpp
     shader/decode/xmad.cpp
     shader/decode/other.cpp
+    shader/ast.cpp
+    shader/ast.h
     shader/control_flow.cpp
     shader/control_flow.h
+    shader/compiler_settings.cpp
+    shader/compiler_settings.h
     shader/decode.cpp
+    shader/expr.cpp
+    shader/expr.h
     shader/node_helper.cpp
     shader/node_helper.h
     shader/node.h

src/video_core/renderer_opengl/gl_shader_decompiler.cpp

@@ -19,6 +19,7 @@
 #include "video_core/renderer_opengl/gl_device.h"
 #include "video_core/renderer_opengl/gl_rasterizer.h"
 #include "video_core/renderer_opengl/gl_shader_decompiler.h"
+#include "video_core/shader/ast.h"
 #include "video_core/shader/node.h"
 #include "video_core/shader/shader_ir.h"
 
@@ -242,6 +243,26 @@ constexpr const char* GetTypeString(Type type) {
     }
 }
 
+constexpr const char* GetImageTypeDeclaration(Tegra::Shader::ImageType image_type) {
+    switch (image_type) {
+    case Tegra::Shader::ImageType::Texture1D:
+        return "1D";
+    case Tegra::Shader::ImageType::TextureBuffer:
+        return "Buffer";
+    case Tegra::Shader::ImageType::Texture1DArray:
+        return "1DArray";
+    case Tegra::Shader::ImageType::Texture2D:
+        return "2D";
+    case Tegra::Shader::ImageType::Texture2DArray:
+        return "2DArray";
+    case Tegra::Shader::ImageType::Texture3D:
+        return "3D";
+    default:
+        UNREACHABLE();
+        return "1D";
+    }
+}
+
 /// Generates code to use for a swizzle operation.
 constexpr const char* GetSwizzle(u32 element) {
     constexpr std::array swizzle = {".x", ".y", ".z", ".w"};
@@ -314,39 +335,24 @@ constexpr bool IsVertexShader(ProgramType stage) {
     return stage == ProgramType::VertexA || stage == ProgramType::VertexB;
 }
 
+class ASTDecompiler;
+class ExprDecompiler;
+
 class GLSLDecompiler final {
 public:
     explicit GLSLDecompiler(const Device& device, const ShaderIR& ir, ProgramType stage,
                             std::string suffix)
         : device{device}, ir{ir}, stage{stage}, suffix{suffix}, header{ir.GetHeader()} {}
 
-    void Decompile() {
-        DeclareVertex();
-        DeclareGeometry();
-        DeclareRegisters();
-        DeclarePredicates();
-        DeclareLocalMemory();
-        DeclareSharedMemory();
-        DeclareInternalFlags();
-        DeclareInputAttributes();
-        DeclareOutputAttributes();
-        DeclareConstantBuffers();
-        DeclareGlobalMemory();
-        DeclareSamplers();
-        DeclarePhysicalAttributeReader();
-        DeclareImages();
-
-        code.AddLine("void execute_{}() {{", suffix);
-        ++code.scope;
-
+    void DecompileBranchMode() {
         // VM's program counter
         const auto first_address = ir.GetBasicBlocks().begin()->first;
         code.AddLine("uint jmp_to = {}U;", first_address);
 
         // TODO(Subv): Figure out the actual depth of the flow stack, for now it seems
         // unlikely that shaders will use 20 nested SSYs and PBKs.
+        constexpr u32 FLOW_STACK_SIZE = 20;
         if (!ir.IsFlowStackDisabled()) {
-            constexpr u32 FLOW_STACK_SIZE = 20;
             for (const auto stack : std::array{MetaStackClass::Ssy, MetaStackClass::Pbk}) {
                 code.AddLine("uint {}[{}];", FlowStackName(stack), FLOW_STACK_SIZE);
                 code.AddLine("uint {} = 0U;", FlowStackTopName(stack));
@@ -372,10 +378,37 @@ public:
         code.AddLine("default: return;");
         code.AddLine("}}");
 
-        for (std::size_t i = 0; i < 2; ++i) {
-            --code.scope;
-            code.AddLine("}}");
+        --code.scope;
+        code.AddLine("}}");
+    }
+
+    void DecompileAST();
+
+    void Decompile() {
+        DeclareVertex();
+        DeclareGeometry();
+        DeclareRegisters();
+        DeclarePredicates();
+        DeclareLocalMemory();
+        DeclareInternalFlags();
+        DeclareInputAttributes();
+        DeclareOutputAttributes();
+        DeclareConstantBuffers();
+        DeclareGlobalMemory();
+        DeclareSamplers();
+        DeclarePhysicalAttributeReader();
+
+        code.AddLine("void execute_{}() {{", suffix);
+        ++code.scope;
+
+        if (ir.IsDecompiled()) {
+            DecompileAST();
+        } else {
+            DecompileBranchMode();
         }
+
+        --code.scope;
+        code.AddLine("}}");
     }
 
     std::string GetResult() {
@@ -404,6 +437,9 @@ public:
     }
 
 private:
+    friend class ASTDecompiler;
+    friend class ExprDecompiler;
+
     void DeclareVertex() {
         if (!IsVertexShader(stage))
             return;
@@ -721,26 +757,6 @@ private:
     void DeclareImages() {
         const auto& images{ir.GetImages()};
         for (const auto& [offset, image] : images) {
-            const char* image_type = [&] {
-                switch (image.GetType()) {
-                case Tegra::Shader::ImageType::Texture1D:
-                    return "1D";
-                case Tegra::Shader::ImageType::TextureBuffer:
-                    return "Buffer";
-                case Tegra::Shader::ImageType::Texture1DArray:
-                    return "1DArray";
-                case Tegra::Shader::ImageType::Texture2D:
-                    return "2D";
-                case Tegra::Shader::ImageType::Texture2DArray:
-                    return "2DArray";
-                case Tegra::Shader::ImageType::Texture3D:
-                    return "3D";
-                default:
-                    UNREACHABLE();
-                    return "1D";
-                }
-            }();
-
             std::string qualifier = "coherent volatile";
             if (image.IsRead() && !image.IsWritten()) {
                 qualifier += " readonly";
@@ -748,13 +764,10 @@ private:
                 qualifier += " writeonly";
             }
 
-            std::string format;
-            if (image.IsAtomic()) {
-                format = "r32ui, ";
-            }
-
+            const char* format = image.IsAtomic() ? "r32ui, " : "";
+            const char* type_declaration = GetImageTypeDeclaration(image.GetType());
             code.AddLine("layout ({}binding = IMAGE_BINDING_{}) {} uniform uimage{} {};", format,
-                         image.GetIndex(), qualifier, image_type, GetImage(image));
+                         image.GetIndex(), qualifier, type_declaration, GetImage(image));
         }
         if (!images.empty()) {
             code.AddNewLine();
@@ -1494,6 +1507,8 @@ private:
         case Tegra::Shader::HalfType::H1_H1:
             return {fmt::format("vec2({}[1])", operand.AsHalfFloat()), Type::HalfFloat};
         }
+        UNREACHABLE();
+        return {"0", Type::Int};
     }
 
     Expression HMergeF32(Operation operation) {
@@ -1822,10 +1837,9 @@ private:
         return {};
     }
 
-    Expression Exit(Operation operation) {
+    void PreExit() {
         if (stage != ProgramType::Fragment) {
-            code.AddLine("return;");
-            return {};
+            return;
         }
         const auto& used_registers = ir.GetRegisters();
         const auto SafeGetRegister = [&](u32 reg) -> Expression {
@@ -1857,7 +1871,10 @@ private:
             // already contains one past the last color register.
             code.AddLine("gl_FragDepth = {};", SafeGetRegister(current_reg + 1).AsFloat());
         }
+    }
 
+    Expression Exit(Operation operation) {
+        PreExit();
         code.AddLine("return;");
         return {};
     }
@@ -2254,6 +2271,208 @@ private:
     ShaderWriter code;
 };
 
+static constexpr std::string_view flow_var = "flow_var_";
+
+std::string GetFlowVariable(u32 i) {
+    return fmt::format("{}{}", flow_var, i);
+}
+
+class ExprDecompiler {
+public:
+    explicit ExprDecompiler(GLSLDecompiler& decomp) : decomp{decomp} {}
+
+    void operator()(VideoCommon::Shader::ExprAnd& expr) {
+        inner += "( ";
+        std::visit(*this, *expr.operand1);
+        inner += " && ";
+        std::visit(*this, *expr.operand2);
+        inner += ')';
+    }
+
+    void operator()(VideoCommon::Shader::ExprOr& expr) {
+        inner += "( ";
+        std::visit(*this, *expr.operand1);
+        inner += " || ";
+        std::visit(*this, *expr.operand2);
+        inner += ')';
+    }
+
+    void operator()(VideoCommon::Shader::ExprNot& expr) {
+        inner += '!';
+        std::visit(*this, *expr.operand1);
+    }
+
+    void operator()(VideoCommon::Shader::ExprPredicate& expr) {
+        const auto pred = static_cast<Tegra::Shader::Pred>(expr.predicate);
+        inner += decomp.GetPredicate(pred);
+    }
+
+    void operator()(VideoCommon::Shader::ExprCondCode& expr) {
+        const Node cc = decomp.ir.GetConditionCode(expr.cc);
+        std::string target;
+
+        if (const auto pred = std::get_if<PredicateNode>(&*cc)) {
+            const auto index = pred->GetIndex();
+            switch (index) {
+            case Tegra::Shader::Pred::NeverExecute:
+                target = "false";
+            case Tegra::Shader::Pred::UnusedIndex:
+                target = "true";
+            default:
+                target = decomp.GetPredicate(index);
+            }
+        } else if (const auto flag = std::get_if<InternalFlagNode>(&*cc)) {
+            target = decomp.GetInternalFlag(flag->GetFlag());
+        } else {
+            UNREACHABLE();
+        }
+        inner += target;
+    }
+
+    void operator()(VideoCommon::Shader::ExprVar& expr) {
+        inner += GetFlowVariable(expr.var_index);
+    }
+
+    void operator()(VideoCommon::Shader::ExprBoolean& expr) {
+        inner += expr.value ? "true" : "false";
+    }
+
+    std::string& GetResult() {
+        return inner;
+    }
+
+private:
+    std::string inner;
+    GLSLDecompiler& decomp;
+};
+
+class ASTDecompiler {
+public:
+    explicit ASTDecompiler(GLSLDecompiler& decomp) : decomp{decomp} {}
+
+    void operator()(VideoCommon::Shader::ASTProgram& ast) {
+        ASTNode current = ast.nodes.GetFirst();
+        while (current) {
+            Visit(current);
+            current = current->GetNext();
+        }
+    }
+
+    void operator()(VideoCommon::Shader::ASTIfThen& ast) {
+        ExprDecompiler expr_parser{decomp};
+        std::visit(expr_parser, *ast.condition);
+        decomp.code.AddLine("if ({}) {{", expr_parser.GetResult());
+        decomp.code.scope++;
+        ASTNode current = ast.nodes.GetFirst();
+        while (current) {
+            Visit(current);
+            current = current->GetNext();
+        }
+        decomp.code.scope--;
+        decomp.code.AddLine("}}");
+    }
+
+    void operator()(VideoCommon::Shader::ASTIfElse& ast) {
+        decomp.code.AddLine("else {{");
+        decomp.code.scope++;
+        ASTNode current = ast.nodes.GetFirst();
+        while (current) {
+            Visit(current);
+            current = current->GetNext();
+        }
+        decomp.code.scope--;
+        decomp.code.AddLine("}}");
+    }
+
+    void operator()(VideoCommon::Shader::ASTBlockEncoded& ast) {
+        UNREACHABLE();
+    }
+
+    void operator()(VideoCommon::Shader::ASTBlockDecoded& ast) {
+        decomp.VisitBlock(ast.nodes);
+    }
+
+    void operator()(VideoCommon::Shader::ASTVarSet& ast) {
+        ExprDecompiler expr_parser{decomp};
+        std::visit(expr_parser, *ast.condition);
+        decomp.code.AddLine("{} = {};", GetFlowVariable(ast.index), expr_parser.GetResult());
+    }
+
+    void operator()(VideoCommon::Shader::ASTLabel& ast) {
+        decomp.code.AddLine("// Label_{}:", ast.index);
+    }
+
+    void operator()(VideoCommon::Shader::ASTGoto& ast) {
+        UNREACHABLE();
+    }
+
+    void operator()(VideoCommon::Shader::ASTDoWhile& ast) {
+        ExprDecompiler expr_parser{decomp};
+        std::visit(expr_parser, *ast.condition);
+        decomp.code.AddLine("do {{");
+        decomp.code.scope++;
+        ASTNode current = ast.nodes.GetFirst();
+        while (current) {
+            Visit(current);
+            current = current->GetNext();
+        }
+        decomp.code.scope--;
+        decomp.code.AddLine("}} while({});", expr_parser.GetResult());
+    }
+
+    void operator()(VideoCommon::Shader::ASTReturn& ast) {
+        const bool is_true = VideoCommon::Shader::ExprIsTrue(ast.condition);
+        if (!is_true) {
+            ExprDecompiler expr_parser{decomp};
+            std::visit(expr_parser, *ast.condition);
+            decomp.code.AddLine("if ({}) {{", expr_parser.GetResult());
+            decomp.code.scope++;
+        }
+        if (ast.kills) {
+            decomp.code.AddLine("discard;");
+        } else {
+            decomp.PreExit();
+            decomp.code.AddLine("return;");
+        }
+        if (!is_true) {
+            decomp.code.scope--;
+            decomp.code.AddLine("}}");
+        }
+    }
+
+    void operator()(VideoCommon::Shader::ASTBreak& ast) {
+        const bool is_true = VideoCommon::Shader::ExprIsTrue(ast.condition);
+        if (!is_true) {
+            ExprDecompiler expr_parser{decomp};
+            std::visit(expr_parser, *ast.condition);
+            decomp.code.AddLine("if ({}) {{", expr_parser.GetResult());
+            decomp.code.scope++;
+        }
+        decomp.code.AddLine("break;");
+        if (!is_true) {
+            decomp.code.scope--;
+            decomp.code.AddLine("}}");
+        }
+    }
+
+    void Visit(VideoCommon::Shader::ASTNode& node) {
+        std::visit(*this, *node->GetInnerData());
+    }
+
+private:
+    GLSLDecompiler& decomp;
+};
+
+void GLSLDecompiler::DecompileAST() {
+    const u32 num_flow_variables = ir.GetASTNumVariables();
+    for (u32 i = 0; i < num_flow_variables; i++) {
+        code.AddLine("bool {} = false;", GetFlowVariable(i));
+    }
+    ASTDecompiler decompiler{*this};
+    VideoCommon::Shader::ASTNode program = ir.GetASTProgram();
+    decompiler.Visit(program);
+}
+
 } // Anonymous namespace
 
 std::string GetCommonDeclarations() {

src/video_core/renderer_opengl/gl_shader_disk_cache.cpp

@@ -112,14 +112,15 @@ std::optional<std::pair<std::vector<ShaderDiskCacheRaw>, std::vector<ShaderDiskC
 ShaderDiskCacheOpenGL::LoadTransferable() {
     // Skip games without title id
     const bool has_title_id = system.CurrentProcess()->GetTitleID() != 0;
-    if (!Settings::values.use_disk_shader_cache || !has_title_id)
+    if (!Settings::values.use_disk_shader_cache || !has_title_id) {
         return {};
-    tried_to_load = true;
+    }
 
     FileUtil::IOFile file(GetTransferablePath(), "rb");
     if (!file.IsOpen()) {
         LOG_INFO(Render_OpenGL, "No transferable shader cache found for game with title id={}",
                  GetTitleID());
+        is_usable = true;
         return {};
     }
 
@@ -135,6 +136,7 @@ ShaderDiskCacheOpenGL::LoadTransferable() {
         LOG_INFO(Render_OpenGL, "Transferable shader cache is old - removing");
         file.Close();
         InvalidateTransferable();
+        is_usable = true;
         return {};
     }
     if (version > NativeVersion) {
@@ -180,13 +182,15 @@ ShaderDiskCacheOpenGL::LoadTransferable() {
         }
     }
 
-    return {{raws, usages}};
+    is_usable = true;
+    return {{std::move(raws), std::move(usages)}};
 }
 
 std::pair<std::unordered_map<u64, ShaderDiskCacheDecompiled>, ShaderDumpsMap>
 ShaderDiskCacheOpenGL::LoadPrecompiled() {
-    if (!IsUsable())
+    if (!is_usable) {
         return {};
+    }
 
     FileUtil::IOFile file(GetPrecompiledPath(), "rb");
     if (!file.IsOpen()) {
@@ -479,8 +483,9 @@ void ShaderDiskCacheOpenGL::InvalidatePrecompiled() {
 }
 
 void ShaderDiskCacheOpenGL::SaveRaw(const ShaderDiskCacheRaw& entry) {
-    if (!IsUsable())
+    if (!is_usable) {
         return;
+    }
 
     const u64 id = entry.GetUniqueIdentifier();
     if (transferable.find(id) != transferable.end()) {
@@ -501,8 +506,9 @@ void ShaderDiskCacheOpenGL::SaveRaw(const ShaderDiskCacheRaw& entry) {
 }
 
 void ShaderDiskCacheOpenGL::SaveUsage(const ShaderDiskCacheUsage& usage) {
-    if (!IsUsable())
+    if (!is_usable) {
         return;
+    }
 
     const auto it = transferable.find(usage.unique_identifier);
     ASSERT_MSG(it != transferable.end(), "Saving shader usage without storing raw previously");
@@ -528,8 +534,9 @@ void ShaderDiskCacheOpenGL::SaveUsage(const ShaderDiskCacheUsage& usage) {
 
 void ShaderDiskCacheOpenGL::SaveDecompiled(u64 unique_identifier, const std::string& code,
                                            const GLShader::ShaderEntries& entries) {
-    if (!IsUsable())
+    if (!is_usable) {
         return;
+    }
 
     if (precompiled_cache_virtual_file.GetSize() == 0) {
         SavePrecompiledHeaderToVirtualPrecompiledCache();
@@ -543,8 +550,9 @@ void ShaderDiskCacheOpenGL::SaveDecompiled(u64 unique_identifier, const std::str
 }
 
 void ShaderDiskCacheOpenGL::SaveDump(const ShaderDiskCacheUsage& usage, GLuint program) {
-    if (!IsUsable())
+    if (!is_usable) {
         return;
+    }
 
     GLint binary_length{};
     glGetProgramiv(program, GL_PROGRAM_BINARY_LENGTH, &binary_length);
@@ -565,10 +573,6 @@ void ShaderDiskCacheOpenGL::SaveDump(const ShaderDiskCacheUsage& usage, GLuint p
     }
 }
 
-bool ShaderDiskCacheOpenGL::IsUsable() const {
-    return tried_to_load && Settings::values.use_disk_shader_cache;
-}
-
 FileUtil::IOFile ShaderDiskCacheOpenGL::AppendTransferableFile() const {
     if (!EnsureDirectories())
         return {};

src/video_core/renderer_opengl/gl_shader_disk_cache.h

@@ -224,9 +224,6 @@ private:
     bool SaveDecompiledFile(u64 unique_identifier, const std::string& code,
                             const GLShader::ShaderEntries& entries);
 
-    /// Returns if the cache can be used
-    bool IsUsable() const;
-
     /// Opens current game's transferable file and write it's header if it doesn't exist
     FileUtil::IOFile AppendTransferableFile() const;
 
@@ -297,7 +294,7 @@ private:
     std::unordered_map<u64, std::unordered_set<ShaderDiskCacheUsage>> transferable;
 
     // The cache has been loaded at boot
-    bool tried_to_load{};
+    bool is_usable{};
 };
 
 } // namespace OpenGL