Only slightly totally broken SVG transformations

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

diff --git a/src/screen.h b/src/screen.h
index ebe9da2..85b3c27 100644 (file)
--- a/src/screen.h
+++ b/src/screen.h
@@ -1,10 +1,17 @@
 #ifndef _SCREEN_H
 #define _SCREEN_H
 
-#include <SDL.h>
+#include "SDL.h"
+
+#include <functional>
+
+#include "stb_truetype.h"
+#include "graphicsbuffer.h"
+#include "shaderprogram.h"
 
 namespace IPDF
 {
+       class View;
        /*
         * The "Screen" class handles managing the OS window (using SDL2).
         */
@@ -18,20 +25,83 @@ namespace IPDF
                // Returns 'false' if the program should quit.
                bool PumpEvents();
 
+               // Clears the screen to a given colour.
+               void Clear(float r=1.0, float g=1.0, float b=1.0, float a=1.0);
+
                // Finishes rendering a frame, and presents it on the screen.
                void Present();
 
                // Get the current width/height of the window's viewport.
-               int ViewportWidth() { return m_viewport_width; }
-               int ViewportHeight() { return m_viewport_height; }
+               int ViewportWidth() const { return m_viewport_width; }
+               int ViewportHeight() const { return m_viewport_height; }
+               
+               // Debug Font handling
+               void DebugFontInit(const char *font_name, float font_size = 12);
+               void DebugFontClear();
+               void DebugFontPrint(const char *str);
+               void DebugFontPrintF(const char *fmt, ...);
+               
+               // Handle mouse input.
+               typedef void(*MouseHandler)(int x, int y, int button, int wheel, Screen * scr, View * view);
+               void SetMouseHandler(MouseHandler handler)
+               {
+                       m_mouse_handler = handler;
+               }
+               
+               enum MouseCursors
+               {
+                       CursorArrow,
+                       CursorWait,
+                       CursorWaitArrow,
+                       CursorMove,
+                       CursorHand
+               };
+               void SetMouseCursor(MouseCursors cursor);
+
+               void ScreenShot(const char * filename) const;
+               void RenderBMP(const char * filename) const;
+               void RenderPixels(int x, int y, int w, int h, uint8_t * pixels) const;
+
+
+               void SetView(View * new_view) {m_view = new_view;}
+
+               // 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();
+               
+               MouseHandler m_mouse_handler;
+               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;
+               ShaderProgram m_font_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;
+               float m_debug_font_y;
+               float m_debug_font_size;
+               GraphicsBuffer m_debug_font_vertices;
+               GraphicsBuffer m_debug_font_indices;
+               int m_debug_font_vertex_head;
+               int m_debug_font_index_head;
+               View * m_view;
        };
+
 }
 
 #endif // _SCREEN_H