config: option to select gpu for vk device

src/common/config.cpp

@@ -12,6 +12,7 @@ namespace Config {
 bool isNeo = false;
 u32 screenWidth = 1280;
 u32 screenHeight = 720;
+u32 gpuId = 0; // Vulkan physical device no
 std::string logFilter;
 std::string logType = "sync";
 bool isDebugDump = false;
@@ -32,6 +33,10 @@ u32 getScreenHeight() {
     return screenHeight;
 }
 
+u32 getGpuId() {
+    return gpuId;
+}
+
 std::string getLogFilter() {
     return logFilter;
 }
@@ -76,8 +81,9 @@ void load(const std::filesystem::path& path) {
         if (generalResult.is_ok()) {
             auto general = generalResult.unwrap();
 
-            screenWidth = toml::find_or<toml::integer>(general, "screenWidth", false);
+            screenWidth = toml::find_or<toml::integer>(general, "screenWidth", screenWidth);
-            screenHeight = toml::find_or<toml::integer>(general, "screenHeight", false);
+            screenHeight = toml::find_or<toml::integer>(general, "screenHeight", screenHeight);
+            gpuId = toml::find_or<toml::integer>(general, "gpuId", 0);
         }
     }
     if (data.contains("Debug")) {
@@ -119,6 +125,7 @@ void save(const std::filesystem::path& path) {
     data["General"]["isPS4Pro"] = isNeo;
     data["General"]["logFilter"] = logFilter;
     data["General"]["logType"] = logType;
+    data["GPU"]["gpuId"] = gpuId;
     data["GPU"]["screenWidth"] = screenWidth;
     data["GPU"]["screenHeight"] = screenHeight;
     data["Debug"]["DebugDump"] = isDebugDump;

src/common/config.h

@@ -16,6 +16,7 @@ std::string getLogType();
 
 u32 getScreenWidth();
 u32 getScreenHeight();
+u32 getGpuId();
 
 bool debugDump();
 bool isLleLibc();

src/video_core/renderer_vulkan/renderer_vulkan.cpp

@@ -2,6 +2,7 @@
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "sdl_window.h"
+#include "common/config.h"
 #include "video_core/renderer_vulkan/renderer_vulkan.h"
 
 #include <vk_mem_alloc.h>
@@ -57,7 +58,7 @@ bool CanBlitToSwapchain(const vk::PhysicalDevice physical_device, vk::Format for
 }
 
 RendererVulkan::RendererVulkan(Frontend::WindowSDL& window_)
-    : window{window_}, instance{window, 0}, scheduler{instance}, swapchain{instance, window},
+    : window{window_}, instance{window, Config::getGpuId()}, scheduler{instance}, swapchain{instance, window},
       texture_cache{instance, scheduler} {
     const u32 num_images = swapchain.GetImageCount();
     const vk::Device device = instance.GetDevice();