Graphics Img libraries for linux/mac os
1.http://cairographics.org/编译使用方法:
http://www.gaia-gis.it/spatialite-2.4.0-4/mingw_how_to.html#libcairo
2.small lib:
http://cimg.sourceforge.net/
编译和使用
http://cimg.sourceforge.net/reference/group__cimg__overview.html
3.Simple OpenGL Image Library(建议使用FreeImg Library)
跨平台的opengl 材质资源管理库
http://lonesock.net/soil.html
code block 使用library:Using libraries with Code::Blocks
http://www.learncpp.com/cpp-tutorial/a3-using-libraries-with-codeblocks/
opengl使用freeImg示例
//
thisIsInitGL(){
loadTexture();
}
///Now the interesting code:
loadTexture(){
FREE_IMAGE_FORMAT formato = FreeImage_GetFileType(textureFile,0);//Automatocally detects the format(from over 20 formats!)
FIBITMAP* imagen = FreeImage_Load(formato, textureFile);
FIBITMAP* temp = imagen;
imagen = FreeImage_ConvertTo32Bits(imagen);
FreeImage_Unload(temp);
int w = FreeImage_GetWidth(imagen);
int h = FreeImage_GetHeight(imagen);
cout<<"The size of the image is: "<<textureFile<<" es "<<w<<"*"<<h<<endl; //Some debugging code
GLubyte* textura = new GLubyte;
char* pixeles = (char*)FreeImage_GetBits(imagen);
//FreeImage loads in BGR format, so you need to swap some bytes(Or use GL_BGR).
for(int j= 0; j<w*h; j++){
textura= pixeles;
textura= pixeles;
textura= pixeles;
textura= pixeles;
//cout<<j<<": "<<textura<<"**"<<textura<<"**"<<textura<<"**"<<textura<<endl;
}
//Now generate the OpenGL texture object
glGenTextures(1, &texturaID);
glBindTexture(GL_TEXTURE_2D, texturaID);
glTexImage2D(GL_TEXTURE_2D,0,GL_RGBA, w, h, 0, GL_RGBA,GL_UNSIGNED_BYTE,(GLvoid*)textura );
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
GLenum huboError = glGetError();
if(huboError){
cout<<"There was an error loading the texture"<<endl;
}
} //
4.a completely OpenSourced alternative to the OpenGL Utility Toolkit (GLUT) library
http://freeglut.sourceforge.net/
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