X-Git-Url: https://git.ucc.asn.au/?p=ipdf%2Fcode.git;a=blobdiff_plain;f=src%2Fscreen.h;h=f66c7aa762e140c5d5d4b7798155b982f9945a2f;hp=ddcf8cace42c35083c763c874250fcd2009c7a63;hb=b95fd30aafb3f47d2bfc8aa8f75600db4fdb995c;hpb=bdda0103bf26d215d41093316ca0e15cd67fec1d

diff --git a/src/screen.h b/src/screen.h
index ddcf8ca..f66c7aa 100644
--- a/src/screen.h
+++ b/src/screen.h
@@ -7,6 +7,7 @@
 
 #include "stb_truetype.h"
 #include "graphicsbuffer.h"
+#include "shaderprogram.h"
 
 namespace IPDF
 {
@@ -58,6 +59,11 @@ namespace IPDF
 
 		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();
@@ -66,10 +72,18 @@ namespace IPDF
 		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;
 		SDL_GLContext m_gl_context;
+		ShaderProgram m_texture_prog;
+		GLint m_colour_uniform_location;
+		GraphicsBuffer m_viewport_ubo;
 		stbtt_bakedchar m_debug_font_rects[96];
 		unsigned int m_debug_font_atlas;
 		float m_debug_font_x;