游戏纹理类

 看了2个晚上总算设计个一个简易的文理类 如下：

/* 19.02.2009 [e-mail]*//* how to use this classstep is: 1. define instance 2. set img ptr 3. bind 4. set_border(in render) */#ifndef G_TEXTURE_HPP#define G_TEXTURE_HPP #include <string>#include <windows.h>#include <gl/gl.h> struct img_info{ unsigned char *data; int x; int y; std::string name;};namespace g{ namespace graphic {class texture{public: texture(); virtual ~texture(); texture& operator = (const texture&); texture(const texture&);public: //set data info from img file.. bool set_info(const img_info *&); void bind(); virtual void render(); //void set_geome(void_ptr ptr); void set_border(const int x,const int y, const int w, const int h);public: //get info //Point get_size()const{return Point(x,y);}std::string get_name()const{return name;}private: GLubyte *image[1]; int x; int y; GLuint tex[1]; std::string name; //void_ptr geome_ptr; }; }}#endif

cxx文件为

#include "texture.hpp" namespace g{ namespace graphic { texture::texture():x(0),y(0),name(""){glEnable(GL_TEXTURE_2D); image[0] = NULL;tex[0] = 0;}texture::~texture(){glDisable(GL_TEXTURE_2D);}//texture& operator = (const texture&);//texture(const texture&);bool texture::set_info(const img_info* &_ptr){if(_ptr != NULL){image[0] = _ptr->data;x = _ptr->x;y = _ptr->y;name = _ptr->name; return true; }elsereturn false;}void texture::bind(){ glGenTextures(1,&tex[0]); glBindTexture(GL_TEXTURE_2D, tex[0]);}void texture::render(){ glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, x, y, 0, GL_RGB, GL_UNSIGNED_BYTE, image[0]); glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR); glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR);}//void set_geome(void_ptr ptr);void texture::set_border(const int x,const int y, const int w, const int h){ glBegin(GL_QUADS);glTexCoord2f(0.0f, 0.0f); glVertex3f(static_cast<GLfloat>(x), static_cast<GLfloat>(y), 0.0f);glTexCoord2f(1.0f, 0.0f); glVertex3f(static_cast<GLfloat>(w), static_cast<GLfloat>(y), 0.0f);glTexCoord2f(1.0f, 1.0f); glVertex3f(static_cast<GLfloat>(w), static_cast<GLfloat>(h), 0.0f);glTexCoord2f(0.0f, 1.0f); glVertex3f(static_cast<GLfloat>(x), static_cast<GLfloat>(h), 0.0f); glEnd();} }}