video_core: prefer discrete gpu if available (#116)

* video_core: prefer discrete gpu if available

* ci: Upgrade to clang format 17

* rewrite w\o std::zip usage

---------

Co-authored-by: raphaelthegreat <47210458+raphaelthegreat@users.noreply.github.com>

.ci/clang-format.sh

@@ -10,7 +10,7 @@ if grep -nrI '\s$' src *.yml *.txt *.md Doxyfile .gitignore .gitmodules .ci* dis
 fi
 
 # Default clang-format points to default 3.5 version one
-CLANG_FORMAT=clang-format-15
+CLANG_FORMAT=clang-format-17
 $CLANG_FORMAT --version
 
 if [ "$GITHUB_EVENT_NAME" = "pull_request" ]; then

.github/workflows/format.yml

@@ -17,7 +17,11 @@ jobs:
         with:
           fetch-depth: 0
       - name: Install
-        run: sudo apt-get install clang-format-15
+        run: |
+          wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | sudo apt-key add -
+          sudo add-apt-repository 'deb http://apt.llvm.org/jammy/ llvm-toolchain-jammy-17 main'
+          sudo apt update
+          sudo apt install clang-format-17
       - name: Build
         env:
           COMMIT_RANGE: ${{ github.event.pull_request.base.sha }}..${{ github.event.pull_request.head.sha }}

CMakeLists.txt

@@ -37,7 +37,7 @@ endfunction()
 # against all the src files. This should be used before making a pull request.
 # =======================================================================
 
-set(CLANG_FORMAT_POSTFIX "-15")
+set(CLANG_FORMAT_POSTFIX "-17")
 find_program(CLANG_FORMAT
     NAMES clang-format${CLANG_FORMAT_POSTFIX}
           clang-format

src/common/config.cpp

@@ -12,7 +12,7 @@ namespace Config {
 bool isNeo = false;
 u32 screenWidth = 1280;
 u32 screenHeight = 720;
-u32 gpuId = 0; // Vulkan physical device no
+s32 gpuId = -1; // Vulkan physical device index. Set to negative for auto select
 std::string logFilter;
 std::string logType = "sync";
 bool isDebugDump = false;
@@ -33,7 +33,7 @@ u32 getScreenHeight() {
     return screenHeight;
 }
 
-u32 getGpuId() {
+s32 getGpuId() {
     return gpuId;
 }
 

src/common/config.h

@@ -16,7 +16,7 @@ std::string getLogType();
 
 u32 getScreenWidth();
 u32 getScreenHeight();
-u32 getGpuId();
+s32 getGpuId();
 
 bool debugDump();
 bool isLleLibc();

src/video_core/renderer_vulkan/vk_instance.cpp

@@ -1,6 +1,7 @@
 // SPDX-FileCopyrightText: Copyright 2024 shadPS4 Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
+#include <ranges>
 #include <span>
 #include <boost/container/static_vector.hpp>
 #include <fmt/format.h>
@@ -39,16 +40,34 @@ Instance::Instance(bool enable_validation, bool dump_command_buffers)
                               dump_command_buffers)},
       physical_devices{instance->enumeratePhysicalDevices()} {}
 
-Instance::Instance(Frontend::WindowSDL& window, u32 physical_device_index)
+Instance::Instance(Frontend::WindowSDL& window, s32 physical_device_index)
     : instance{CreateInstance(dl, window.getWindowInfo().type, true, false)},
-      debug_callback{CreateDebugCallback(*instance)}, physical_devices{
-                                                          instance->enumeratePhysicalDevices()} {
+      debug_callback{CreateDebugCallback(*instance)},
+      physical_devices{instance->enumeratePhysicalDevices()} {
     const std::size_t num_physical_devices = static_cast<u16>(physical_devices.size());
-    ASSERT_MSG(physical_device_index < num_physical_devices,
-               "Invalid physical device index {} provided when only {} devices exist",
-               physical_device_index, num_physical_devices);
+    ASSERT_MSG(num_physical_devices > 0, "No physical devices found");
+
+    if (physical_device_index < 0) {
+        std::vector<std::pair<size_t, vk::PhysicalDeviceProperties2>> properties2{};
+        for (auto const& physical : physical_devices) {
+            properties2.emplace_back(properties2.size(), physical.getProperties2());
+        }
+        std::sort(properties2.begin(), properties2.end(), [](const auto& left, const auto& right) {
+            if (std::get<1>(left).properties.deviceType ==
+                std::get<1>(right).properties.deviceType) {
+                return true;
+            }
+            return std::get<1>(left).properties.deviceType == vk::PhysicalDeviceType::eDiscreteGpu;
+        });
+        physical_device = physical_devices[std::get<0>(properties2[0])];
+    } else {
+        ASSERT_MSG(physical_device_index < num_physical_devices,
+                   "Invalid physical device index {} provided when only {} devices exist",
+                   physical_device_index, num_physical_devices);
+
+        physical_device = physical_devices[physical_device_index];
+    }
 
-    physical_device = physical_devices[physical_device_index];
     available_extensions = GetSupportedExtensions(physical_device);
     properties = physical_device.getProperties();
     if (properties.apiVersion < TargetVulkanApiVersion) {

src/video_core/renderer_vulkan/vk_instance.h

@@ -18,7 +18,7 @@ namespace Vulkan {
 class Instance {
 public:
     explicit Instance(bool validation = false, bool dump_command_buffers = false);
-    explicit Instance(Frontend::WindowSDL& window, u32 physical_device_index);
+    explicit Instance(Frontend::WindowSDL& window, s32 physical_device_index);
     ~Instance();
 
     /// Returns a formatted string for the driver version