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// -------------------------------------------
// SDL/OpenGL OpenGL application framework
// Jean-Luc PONS (2007)
// -------------------------------------------
#include <SDL.h>
#include <SDL_opengl.h>
#include <string.h>
#include <stdlib.h>
#ifndef _GLAPPH_
#define _GLAPPH_
#define GL_OK 1
#define GL_FAIL 0
typedef int BOOL;
typedef unsigned int DWORD;
typedef unsigned char BYTE;
#define FALSE 0
#define TRUE 1
#define DELETE_LIST(l) if(l) { glDeleteLists(l,1);l=0; }
#define DELETE_TEX(t) if(t) { glDeleteTextures(1,&t);t=0; }
typedef struct {
float r;
float g;
float b;
float a;
} GLCOLOR;
typedef struct {
GLCOLOR Diffuse;
GLCOLOR Ambient;
GLCOLOR Specular;
GLCOLOR Emissive;
float Power;
} GLMATERIAL;
typedef struct {
int x;
int y;
int width;
int height;
} GLVIEWPORT;
class GLApplication {
protected:
// Internal variables for the state of the app
BOOL m_bWindowed;
char* m_strWindowTitle;
int m_screenWidth;
int m_screenHeight;
int ToggleFullscreen();
// Variables for timing
float m_fTime; // Current time in seconds
float m_fElapsedTime; // Time elapsed since last frame
float m_fFPS; // Instanteous frame rate
char m_strFrameStats[90]; // String to hold frame stats
// Overridable variables for the app
virtual int OneTimeSceneInit() { return GL_OK; }
virtual int RestoreDeviceObjects() { return GL_OK; }
virtual int FrameMove() { return GL_OK; }
virtual int Render() { return GL_OK; }
virtual int InvalidateDeviceObjects() { return GL_OK; }
virtual int EventProc(SDL_Event *event) { return GL_OK; }
public:
// Functions to create, run, pause, and clean up the application
virtual int Create(int width, int height, BOOL bFullScreen);
virtual void Pause(BOOL bPause);
virtual int Resize(DWORD width, DWORD height);
int Run();
// Utils function
static void SetMaterial(GLMATERIAL *mat);
static void printGlError();
// Internal constructor
GLApplication();
private:
int m_bitsPerPixel;
char errMsg[512];
};
#endif /* _GLAPPH_ */
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