glBindTexture...SDL_Surface...?
September 16, 2004 05:36 PM
To help me focus on 3d programming ive always used SDL_Surface to hold my texture objects, like this
SDL_Surface *texture;
...
texture = SDL_LoadBMP("sometexture.bmp");
Then i just use the glTexImage2d before the rendering, and i realize this is slow but im still learning. I am now trying to get further and optimize my code, so i tryed to use the glBindTexture, well, it doesnt really like me feeding it an sdl_surface, so i tryed turning the texture into a GLuint, but then the SDL_LoadBMP command gets cranky...
How can use the sdl_loadbmp and be able to bind the texture it loads?
---------------------------------------------think outside the quadLogic GamesI realized I stay on the pc too long when my wireless mouse died after replacing the batteries...twice
668
September 16, 2004 07:08 PM
This should work
int LoadBmp(char* filename, GLuint* data) { SDL_Surface* bmpFile = SDL_LoadBMP(filename); h = bmpFile->h; w = bmpFile->w; glPixelStorei(GL_UNPACK_ALIGNMENT,4); glGenTextures(1,&data); glBindTexture(GL_TEXTURE_2D,data); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR); gluBuild2DMipmaps(GL_TEXTURE_2D,3,bmpFile->w, bmpFile->h,GL_BGR_EXT, GL_UNSIGNED_BYTE,bmpFile->pixels); SDL_FreeSurface(bmpFile); return 0; }This topic is closed to new replies.
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