computer-grafik-1/u06-2/wavefrontobj.c

51 lines
995 B
C

#include <GL/glew.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "wavefrontobj.h"
#define OBJ_LINE_BUFFER_SIZE 256
ParsedObjFile readObjFile(char* path) {
ParsedObjFile parsedFile;
FILE* fp = fopen(path, "r");
if (fp == NULL) {
fprintf(stderr, "File could not be opened: %s", path);
parsedFile.vertices = NULL;
parsedFile.length = 0;
}
uint numVertices = 0;
uint numVertexNormals = 0;
uint numFaces = 0;
uint numTextureCoords = 0;
char buf[OBJ_LINE_BUFFER_SIZE];
while (fgets(buf, OBJ_LINE_BUFFER_SIZE, fp)) {
if (buf[0] == 'v') {
if (buf[1] == ' ') {
numVertices++;
} else if (buf[1] == 't') {
numTextureCoords++;
} else if (buf[1] == 'n') {
numVertexNormals++;
}
}
if (buf[0] == 'f') {
numFaces++;
}
}
printf("Vertices: %d\nFaces: %d\nNormals:%d\nTextures:%d\n", numVertices, numFaces, numVertexNormals, numTextureCoords);
fclose(fp);
}
void clearParsedFile(ParsedObjFile file) {
free(file.vertices);
}