Add GPU performance queries.

[ipdf/code.git] / src / screen.h

diff --git a/src/screen.h b/src/screen.h
index d918dd1..f66c7aa 100644 (file)
--- a/src/screen.h
+++ b/src/screen.h
@@ -59,6 +59,11 @@ namespace IPDF
 
                void ScreenShot(const char * filename) const;
                void RenderBMP(const char * filename) const;
 
                void ScreenShot(const char * filename) const;
                void RenderBMP(const char * filename) const;

+
+               // Returns the CPU time (in seconds) it took to render the last completed frame.
+               double GetLastFrameTimeCPU() const { return m_last_frame_time / SDL_GetPerformanceFrequency(); }
+               // Returns the GPU time (in seconds) it took to render the last completed frame.
+               double GetLastFrameTimeGPU() const;

        private:
                void ResizeViewport(int width, int height);
                void DebugFontFlush();
        private:
                void ResizeViewport(int width, int height);
                void DebugFontFlush();


@@ -67,6 +72,11 @@ namespace IPDF
                int m_last_mouse_x;
                int m_last_mouse_y;
 
                int m_last_mouse_x;
                int m_last_mouse_y;
 

+               double m_last_frame_time;
+               double m_frame_begin_time;
+               GLuint m_frame_gpu_timer;
+               GLuint m_last_frame_gpu_timer;
+

                int m_viewport_width;
                int m_viewport_height;
                SDL_Window *m_window;
                int m_viewport_width;
                int m_viewport_height;
                SDL_Window *m_window;