Various fixes and utilties.

src/xenia/gpu/gl4/gl4_graphics_system.cc

@@ -235,6 +235,11 @@ void GL4GraphicsSystem::PlayTrace(const uint8_t* trace_data, size_t trace_size,
       });
 }
 
+void GL4GraphicsSystem::ClearCaches() {
+  command_processor_->CallInThread(
+      [&]() { command_processor_->texture_cache()->Clear(); });
+}
+
 void GL4GraphicsSystem::MarkVblank() {
   static bool thread_name_set = false;
   if (!thread_name_set) {

src/xenia/gpu/gl4/gl4_graphics_system.h

@@ -46,6 +46,7 @@ class GL4GraphicsSystem : public GraphicsSystem {
   void EndTracing() override;
   void PlayTrace(const uint8_t* trace_data, size_t trace_size,
                  TracePlaybackMode playback_mode) override;
+  void ClearCaches() override;
 
  private:
   void MarkVblank();

src/xenia/gpu/graphics_system.h

@@ -52,6 +52,7 @@ class GraphicsSystem {
   };
   virtual void PlayTrace(const uint8_t* trace_data, size_t trace_size,
                          TracePlaybackMode playback_mode) {}
+  virtual void ClearCaches() {}
 
  protected:
   GraphicsSystem();

src/xenia/gpu/trace_viewer_main.cc

@@ -2211,10 +2211,14 @@ int trace_viewer_main(std::vector<std::wstring>& args) {
     }
 
     auto control = window->child(0);
-    control->on_key_char.AddListener([](poly::ui::KeyEvent& e) {
+    control->on_key_char.AddListener([graphics_system](poly::ui::KeyEvent& e) {
       auto& io = ImGui::GetIO();
       if (e.key_code() > 0 && e.key_code() < 0x10000) {
-        io.AddInputCharacter(e.key_code());
+        if (e.key_code() == 0x74 /* VK_F5 */) {
+          graphics_system->ClearCaches();
+        } else {
+          io.AddInputCharacter(e.key_code());
+        }
       }
       e.set_handled(true);
     });

src/xenia/gpu/xenos.h

@@ -257,6 +257,8 @@ inline float GpuSwap(float value, Endian endianness) {
 
 inline uint32_t GpuToCpu(uint32_t p) { return p; }
 
+inline uint32_t CpuToGpu(uint32_t p) { return p & 0x1FFFFFFF; }
+
 // XE_GPU_REG_SQ_PROGRAM_CNTL
 typedef union {
   XEPACKEDSTRUCTANONYMOUS({