Merge pull request #6317 from ameerj/fps-fix

perf_stats: Rework FPS counter to be more accurate

src/video_core/gpu.cpp

@@ -13,6 +13,7 @@
 #include "core/frontend/emu_window.h"
 #include "core/hardware_interrupt_manager.h"
 #include "core/memory.h"
+#include "core/perf_stats.h"
 #include "video_core/engines/fermi_2d.h"
 #include "video_core/engines/kepler_compute.h"
 #include "video_core/engines/kepler_memory.h"
@@ -191,6 +192,10 @@ u64 GPU::GetTicks() const {
     return nanoseconds_num * gpu_ticks_num + (nanoseconds_rem * gpu_ticks_num) / gpu_ticks_den;
 }
 
+void GPU::RendererFrameEndNotify() {
+    system.GetPerfStats().EndGameFrame();
+}
+
 void GPU::FlushCommands() {
     rasterizer->FlushCommands();
 }

src/video_core/gpu.h

@@ -247,6 +247,8 @@ public:
         return use_nvdec;
     }
 
+    void RendererFrameEndNotify();
+
     enum class FenceOperation : u32 {
         Acquire = 0,
         Increment = 1,

src/video_core/renderer_opengl/renderer_opengl.cpp

@@ -155,6 +155,7 @@ void RendererOpenGL::SwapBuffers(const Tegra::FramebufferConfig* framebuffer) {
 
     ++m_current_frame;
 
+    gpu.RendererFrameEndNotify();
     rasterizer.TickFrame();
 
     context->SwapBuffers();

src/video_core/renderer_vulkan/renderer_vulkan.cpp

@@ -154,6 +154,7 @@ void RendererVulkan::SwapBuffers(const Tegra::FramebufferConfig* framebuffer) {
         if (swapchain.Present(render_semaphore)) {
             blit_screen.Recreate();
         }
+        gpu.RendererFrameEndNotify();
         rasterizer.TickFrame();
     }