eleni@19: #include <GL/gl.h>
eleni@19: #include <highgui.h>
eleni@19: #include <cv.h>
eleni@19: #include "texture.h"
eleni@19: 
eleni@23: unsigned int load_texture(const char* fname, int *xsz, int *ysz)
eleni@19: {
eleni@19: 	IplImage* img = cvLoadImage(fname);
eleni@19: 	if(!img) {
eleni@19: 		fprintf(stderr, "Failed to load image: %s\n", fname);
eleni@19: 		return 0;
eleni@19: 	}
eleni@19: 	cv::Mat mat = cv::Mat(img);
eleni@19: 
eleni@19: 	unsigned int tex;
eleni@19: 	glGenTextures(1, &tex);
eleni@19: 	glBindTexture(GL_TEXTURE_2D, tex);
eleni@19: 	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
eleni@19: 	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
eleni@19: 	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
eleni@19: 	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
eleni@19: 	glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, mat.cols, mat.rows,
eleni@19: 			0, GL_BGR, GL_UNSIGNED_BYTE, mat.data);
eleni@19: 
eleni@23: 	if(xsz) {
eleni@23: 		*xsz = mat.cols;
eleni@23: 	}
eleni@23: 	if(ysz) {
eleni@23: 		*ysz = mat.rows;
eleni@23: 	}
eleni@19: 	return tex;
eleni@19: }