nuclear@48: #include "opengl.h"
nuclear@48: #include "imago2.h"
nuclear@48: #include "texture.h"
nuclear@48: 
nuclear@48: unsigned int load_texture(const char *fname)
nuclear@48: {
nuclear@48: 	struct img_pixmap img;
nuclear@48: 
nuclear@48: 	img_init(&img);
nuclear@48: 	if(img_load(&img, fname) == -1) {
nuclear@48: 		img_destroy(&img);
nuclear@48: 		return 0;
nuclear@48: 	}
nuclear@48: 
nuclear@48: 	unsigned int intfmt = img_glintfmt(&img);
nuclear@48: 	unsigned int fmt = img_glfmt(&img);
nuclear@48: 	unsigned int type = img_gltype(&img);
nuclear@48: 
nuclear@48: 	unsigned int tex;
nuclear@48: 	glGenTextures(1, &tex);
nuclear@48: 	glBindTexture(GL_TEXTURE_2D, tex);
nuclear@48: 	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
nuclear@48: 	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
nuclear@48: 	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
nuclear@48: 	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
nuclear@48: 
nuclear@48: 	if(GLEW_SGIS_generate_mipmap) {
nuclear@48: 		glTexParameteri(GL_TEXTURE_2D, GL_GENERATE_MIPMAP_SGIS, GL_TRUE);
nuclear@48: 		glTexImage2D(GL_TEXTURE_2D, 0, intfmt, img.width, img.height, 0, fmt, type, img.pixels);
nuclear@48: 	} else {
nuclear@48: 		gluBuild2DMipmaps(GL_TEXTURE_2D, intfmt, img.width, img.height, fmt, type, img.pixels);
nuclear@48: 	}
nuclear@48: 
nuclear@48: 	img_destroy(&img);
nuclear@48: 	return tex;
nuclear@48: }
nuclear@48: 
nuclear@48: void destroy_texture(unsigned int tex)
nuclear@48: {
nuclear@48: 	glDeleteTextures(1, &tex);
nuclear@48: }