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waterGL.h

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//***************************************************************************
#ifndef WATERGL_H
#define WATERGL_H
//***************************************************************************
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <GL/glu.h>
#ifdef __GNUG__
#include <vector.h>
using namespace std;
#else
#include <vector>
#endif
//***************************************************************************
typedef struct _ImageRec {
                        unsigned short imagic;
                        unsigned short type;
                        unsigned short dim;
                        unsigned short xsize, ysize, zsize;
                        unsigned int min, max;
                        unsigned int wasteBytes;
                        char name[80];
                        unsigned long colorMap;
                        FILE *file;
                        unsigned char *tmp, *tmpR, *tmpG, *tmpB;
                        unsigned long rleEnd;
                        unsigned int *rowStart;
                        int *rowSize;
                } ImageRec;
//***************************************************************************
class WaterGL
{

        private:
                int rgb;
                int translate;
                int mesh;
                float ttrans[2];
                float amplitude;
                float freq;
                float phase;
                float xMove, yMove;
                int ox, oy;
                GLuint displayList;
                GLuint waterTextureName;

        void bwtorgba(unsigned char *b,unsigned char *l,int n);
        void rgbtorgba(unsigned char *r,unsigned char *g,unsigned char *b,unsigned char *l,int n);
        void rgbatorgba(unsigned char *r,unsigned char *g,unsigned char *b,unsigned char *a,unsigned char *l,int n);
        void ConvertShort(unsigned short *array, unsigned int length);
        void ConvertUint(unsigned *array, unsigned int length);
        ImageRec *ImageOpen(char *fileName);
        void ImageClose(ImageRec *image);
        void ImageGetRow(ImageRec *image, unsigned char *buf, int y, int z);

        public:
                WaterGL();
                WaterGL(char *filename);
                ~WaterGL();
                void myInit(char *filename);
                void ffunc(void) { freq *= 2.f; }
                void Ffunc(void) { freq /= 2.f; }
                void mfunc(void) { mesh ^= 1; }
                void wire(void);
                void up(void) { amplitude += .01; }
                void down(void) { amplitude -= .01; }
                void left(void) { phase -= .00001; }
                void right(void) { phase += .00001; }
                void draw_mesh(void);
                void draw_mesh( vector<float> coords );
                void set_speed( float xTrans, float yTrans );

                void init(char *filename);
                void animate(void);
                void display(void);
                void display( vector<float> coords );
                unsigned *read_texture(char *name, int *width, int *height, int *components);
};
//***************************************************************************
#endif // WATERGL_H
//***************************************************************************

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