devtools: persist fsr configs (#2852)

Saves FSR config to imgui.ini so it won't reset every startup

src/core/devtools/layer.cpp

@@ -1,11 +1,11 @@
 // SPDX-FileCopyrightText: Copyright 2024 shadPS4 Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
-#include "SDL3/SDL_log.h"
 #include "layer.h"
 
 #include <imgui.h>
 
+#include "SDL3/SDL_log.h"
 #include "common/config.h"
 #include "common/singleton.h"
 #include "common/types.h"

src/core/devtools/options.cpp

@@ -1,9 +1,14 @@
 //  SPDX-FileCopyrightText: Copyright 2024 shadPS4 Emulator Project
 //  SPDX-License-Identifier: GPL-2.0-or-later
 
+#include "options.h"
+
+#include <memory>
 #include <imgui.h>
 
-#include "options.h"
+#include "video_core/renderer_vulkan/vk_presenter.h"
+
+extern std::unique_ptr<Vulkan::Presenter> presenter;
 
 namespace Core::Devtools {
 
@@ -12,6 +17,7 @@ TOptions Options;
 void LoadOptionsConfig(const char* line) {
     char str[512];
     int i;
+    float f;
     if (sscanf(line, "disassembler_cli_isa=%511[^\n]", str) == 1) {
         Options.disassembler_cli_isa = str;
         return;
@@ -24,12 +30,26 @@ void LoadOptionsConfig(const char* line) {
         Options.frame_dump_render_on_collapse = i != 0;
         return;
     }
+    if (sscanf(line, "fsr_enabled=%d", &i) == 1) {
+        presenter->GetFsrSettingsRef().enable = i != 0;
+        return;
+    }
+    if (sscanf(line, "fsr_rcas_enabled=%d", &i) == 1) {
+        presenter->GetFsrSettingsRef().use_rcas = i != 0;
+        return;
+    }
+    if (sscanf(line, "fsr_rcas_attenuation=%f", &f) == 1) {
+        presenter->GetFsrSettingsRef().rcas_attenuation = f;
+    }
 }
 
 void SerializeOptionsConfig(ImGuiTextBuffer* buf) {
     buf->appendf("disassembler_cli_isa=%s\n", Options.disassembler_cli_isa.c_str());
     buf->appendf("disassembler_cli_spv=%s\n", Options.disassembler_cli_spv.c_str());
     buf->appendf("frame_dump_render_on_collapse=%d\n", Options.frame_dump_render_on_collapse);
+    buf->appendf("fsr_enabled=%d\n", presenter->GetFsrSettingsRef().enable);
+    buf->appendf("fsr_rcas_enabled=%d\n", presenter->GetFsrSettingsRef().use_rcas);
+    buf->appendf("fsr_rcas_attenuation=%f\n", presenter->GetFsrSettingsRef().rcas_attenuation);
 }
 
 } // namespace Core::Devtools

src/imgui/imgui_texture.h

@@ -4,8 +4,11 @@
 #pragma once
 
 #include <filesystem>
+#include <vector>
 #include <imgui.h>
 
+#include "common/types.h"
+
 namespace ImGui {
 
 namespace Core::TextureManager {

src/imgui/renderer/imgui_core.cpp

@@ -112,6 +112,8 @@ void Initialize(const ::Vulkan::Instance& instance, const Frontend::WindowSDL& w
     if (const auto dpi = SDL_GetWindowDisplayScale(window.GetSDLWindow()); dpi > 0.0f) {
         GetIO().FontGlobalScale = dpi;
     }
+
+    std::at_quick_exit([] { SaveIniSettingsToDisk(GetIO().IniFilename); });
 }
 
 void OnResize() {