-
Notifications
You must be signed in to change notification settings - Fork 1
/
UseMtl.h
69 lines (61 loc) · 1.98 KB
/
UseMtl.h
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
//
// Created by rthier on 2016.07.15..
//
#ifndef NFTSIMPLEPROJ_USEMTL_H
#define NFTSIMPLEPROJ_USEMTL_H
#include <string>
#include "funhelper.h"
#include <cstring> /* strtok_r, strdup */
#include "ObjCommon.h"
#include "wincompat.h" // msvc hax
namespace ObjMaster {
class UseMtl {
public:
/** Defines if the given fields of an obj file line can be parsed as a UseMtl or not */
static bool isParsable(const char *fields) {
if((fields != nullptr) && fields[0] == 'u' && isStartsWith(std::string(fields), "usemtl")) {
return true;
} else {
return false;
}
}
/**
* Fetches the name of the material the fields are describing.
* should be used after isParsable(..) or in case we are sure that this can run!
*/
static std::string fetchMtlName(const char *fields) {
char *savePtr;
// usemtl
char* copy = strdup(fields);
strtok_r(copy, OBJ_DELIMITER, &savePtr);
// <material_name>
char *mtlNameCstr = strtok_r(nullptr, OBJ_DELIMITER, &savePtr);
// return a string corresponding the current material name
std::string ret = std::string(mtlNameCstr);
free(copy);
return ret;
}
/** Gets the textual representation for *.obj generation */
inline static std::string asText(std::string materialName) {
return "usemtl " + materialName;
}
};
/** testing output-related operations (like asText()) */
static int TEST_UseMtl_Output(){
const char *test = "usemtl testMaterial";
// Parse
auto matName = UseMtl::fetchMtlName(test);
// Reparse result
auto str = UseMtl::asText(matName);
// Compare original and reparsed - this should test output reasonably well
if(std::string(test) == str) {
// OK
return 0;
} else {
// ERROR
OMLOGE("Bad UseMtl output: %s instead of %s", str.c_str(), test);
return 1;
}
}
}
#endif //NFTSIMPLEPROJ_USEMTL_H