UX: Add Overclock setting and Override CPU clock-speed setting

config_spec.yml

@@ -253,3 +253,9 @@ perf:
   cache_shaders:
     type: bool
     default: true
+  override_clockspeed: 
+    type: bool
+    default: false
+  cpu_clockspeed_scale:
+    type: number
+    default: 1

hw/i386/x86.c

@@ -59,6 +59,10 @@
 #include CONFIG_DEVICES
 #include "kvm/kvm_i386.h"
 
+#ifdef XBOX
+#include "ui/xemu-settings.h"
+#endif
+
 /* Physical Address of PVH entry point read from kernel ELF NOTE */
 static size_t pvh_start_addr;
 
@@ -532,8 +536,12 @@ static long get_file_size(FILE *f)
 uint64_t cpu_get_tsc(CPUX86State *env)
 {
 #ifdef XBOX
-    return muldiv64(qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL), 733333333,
-                    NANOSECONDS_PER_SECOND);
+    int cpu_clock_hz = 733333333;
+
+    if (g_config.perf.override_clockspeed) {
+        cpu_clock_hz *= g_config.perf.cpu_clockspeed_scale;
+    }
+    return muldiv64(qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL), cpu_clock_hz, NANOSECONDS_PER_SECOND);
 #else
     return cpus_get_elapsed_ticks();
 #endif

ui/xui/compat.cc

@@ -203,6 +203,14 @@ void CompatibilityReporter::Draw()
         ImGui::SameLine();
     }
 
+    if (g_config.perf.override_clockspeed) {
+        ImGui::PushItemFlag(ImGuiItemFlags_Disabled, true);
+        ImGui::PushStyleVar(ImGuiStyleVar_Alpha, ImGui::GetStyle().Alpha * 0.5f);
+
+        ImGui::Text("Reports cannot be made while using altered CPU clock speeds");
+        ImGui::SameLine();
+    }
+
     ImGui::SetCursorPosX(ImGui::GetWindowWidth()-(120+10)*g_viewport_mgr.m_scale);
 
     ImGui::SetItemDefaultFocus();
@@ -213,7 +221,10 @@ void CompatibilityReporter::Draw()
             is_open = false;
         }
     }
-
+    if (g_config.perf.override_clockspeed) {
+        ImGui::PopItemFlag();
+        ImGui::PopStyleVar();
+    }
     ImGui::End();
 }
 

ui/xui/main-menu.cc

@@ -66,6 +66,17 @@ void MainMenuGeneralView::Draw()
     Toggle("Cache shaders to disk", &g_config.perf.cache_shaders,
            "Reduce stutter in games by caching previously generated shaders");
 
+    Toggle("Emulated CPU clock override", &g_config.perf.override_clockspeed,
+           "Enables to override default CPU clock speed");
+
+    char buf[32];
+    snprintf(buf, sizeof(buf), "Clock Speed %d%% (%.2f MHz)", (int)(g_config.perf.cpu_clockspeed_scale * 100), (733333333 * g_config.perf.cpu_clockspeed_scale) / 1000000);
+    Slider("Virtual CPU clock", &g_config.perf.cpu_clockspeed_scale, buf, 0.01f, 2.f, 0.01f);
+
+    if (fabs(g_config.perf.cpu_clockspeed_scale - 1.f) <= 0.0099f) {
+        g_config.perf.cpu_clockspeed_scale = 1;
+    }
+
     SectionTitle("Miscellaneous");
     Toggle("Skip startup animation", &g_config.general.skip_boot_anim,
            "Skip the full Xbox boot animation sequence");

ui/xui/widgets.cc

@@ -22,6 +22,7 @@
 #include "viewport-manager.hh"
 #include "ui/xemu-os-utils.h"
 #include "gl-helpers.hh"
+#include <algorithm>
 
 void Separator()
 {
@@ -222,8 +223,9 @@ bool Toggle(const char *str_id, bool *v, const char *description)
     return status;
 }
 
-void Slider(const char *str_id, float *v, const char *description)
+void Slider(const char *str_id, float *v, const char *description, float min, float max, float increment)
 {
+    float x = (*v - min) / (max - min);
     ImGui::PushStyleColor(ImGuiCol_Button, IM_COL32_BLACK_TRANS);
 
     ImGuiStyle &style = ImGui::GetStyle();
@@ -261,13 +263,13 @@ void Slider(const char *str_id, float *v, const char *description)
             ImGui::IsKeyPressed(ImGuiKey_GamepadDpadLeft) ||
             ImGui::IsKeyPressed(ImGuiKey_GamepadLStickLeft) ||
             ImGui::IsKeyPressed(ImGuiKey_GamepadRStickLeft)) {
-                *v -= 0.05;
+                x -= increment / max;
         }
         if (ImGui::IsKeyPressed(ImGuiKey_RightArrow) ||
             ImGui::IsKeyPressed(ImGuiKey_GamepadDpadRight) ||
             ImGui::IsKeyPressed(ImGuiKey_GamepadLStickRight) ||
             ImGui::IsKeyPressed(ImGuiKey_GamepadRStickRight)) {
-                *v += 0.05;
+                x += increment / max;
         }
 
         if (
@@ -286,10 +288,11 @@ void Slider(const char *str_id, float *v, const char *description)
 
     if (ImGui::IsItemActive()) {
         ImVec2 mouse = ImGui::GetMousePos();
-        *v = GetSliderValueForMousePos(mouse, slider_pos, slider_size);
+        x = GetSliderValueForMousePos(mouse, slider_pos, slider_size);
     }
-    *v = fmax(0, fmin(*v, 1));
-    DrawSlider(*v, ImGui::IsItemHovered() || ImGui::IsItemActive(), slider_pos,
+    x = std::clamp(x, 0.f, 1.f);
+    *v = x * (max - min) + min;
+    DrawSlider(x, ImGui::IsItemHovered() || ImGui::IsItemActive(), slider_pos,
                slider_size);
 
     ImVec2 slider_max = ImVec2(slider_pos.x + slider_size.x, slider_pos.y + slider_size.y);

ui/xui/widgets.hh

@@ -34,7 +34,7 @@ float GetSliderValueForMousePos(ImVec2 mouse, ImVec2 pos, ImVec2 size);
 void DrawSlider(float v, bool hovered, ImVec2 pos, ImVec2 size);
 void DrawToggle(bool enabled, bool hovered, ImVec2 pos, ImVec2 size);
 bool Toggle(const char *str_id, bool *v, const char *description = nullptr);
-void Slider(const char *str_id, float *v, const char *description = nullptr);
+void Slider(const char *str_id, float *v, const char *description = nullptr, float min = 0, float max = 1, float increment = 0.05);
 bool FilePicker(const char *str_id, const char **buf, const char *filters,
                 bool dir = false);
 void DrawComboChevron();