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Implemented correct initialization of batch and positions array

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_ 2018-04-07 19:37:43 -07:00
parent cc31734e44
commit fb962d2ffe
3 changed files with 61 additions and 4 deletions
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11
include/devil1geo.h
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@ -56,7 +56,6 @@ struct Batch {
uint64_t offsetBoneIndexes; // <format=hex>
uint64_t offsetBoneWeights; // <format=hex>
uint64_t offsets[1]; // <format=hex>
int64_t pos; // set while parsing batch from ftell();
// following structs should in an array of size numVertex
struct Positions *p;
struct Normals *n;
@ -73,7 +72,17 @@ void printgheader(struct Header*);
void printmeshheader(struct MeshHeader*);
void printmeshbatch(struct Batch*);
void printpositions(struct Positions*, unsigned int);
// ** = 'pass by reference' of a pointer to struct
bool getmeshheader(struct MeshHeader**, unsigned int i, const char * const);
// ** = 'pass by reference' of a pointer to struct
bool getmeshbatch(struct Batch**,
struct MeshHeader*,
const char * const);
#endif

45
src/devil1geo.c
View File

@ -24,6 +24,31 @@ void printmeshheader(struct MeshHeader *mh) {
printf("flags %x\n\n", mh -> flags);
}
void printmeshbatch(struct Batch *b) {
if (b == NULL) {
return;
}
printf("number of vertices %x\n", b -> numVertex);
printf("unknown byte %x\n", b -> uB);
printf("padding %x\n", b -> padding);
printf("offsetPositions %x\n", b -> offsetPositions);
printf("offsetNormals %x\n", b -> offsetNormals);
printf("offsetUVs %x\n", b -> offsetUVs);
printf("offsetBoneIndexes %x\n", b -> offsetBoneIndexes);
printf("offsetBoneWeights %x\n", b -> offsetBoneWeights);
printf("offsets %x\n\n", b -> offsets[0]);
}
void printpositions(struct Positions *p, unsigned int count) {
if (p == NULL) {
return;
}
unsigned int i;
for (i = 0; i < count; i++) {
printf("(%f, %f, %f)\n", (p[i]).x, (p[i]).y, (p[i]).z);
}
}
bool getmeshheader(struct MeshHeader **hs,
unsigned int i,
const char * const filedata) {
@ -40,3 +65,23 @@ bool getmeshheader(struct MeshHeader **hs,
done = true;
return done;
}
bool getmeshbatch(struct Batch **b,
struct MeshHeader *h,
const char * const filedata) {
bool done = false;
if (b == NULL || h == NULL || filedata == NULL) {
return done;
}
unsigned int offset = h -> offsetBatches;
*b = (struct Batch*)(filedata + offset);
(*b) -> p = (struct Positions*)(filedata + ((*b) -> offsetPositions));
printf("p = %x\n", (*b) -> offsetPositions);
printpositions((*b) -> p, 3);
(*b) -> n = NULL;
(*b) -> u = NULL;
(*b) -> bi = NULL;
(*b) -> bw = NULL;
done = true;
return done;
}

9
test/main.c
View File

@ -105,7 +105,7 @@ void exporttextures(const char *filedata,
return;
}
void extractmeshes(const char* filedata,
void extractmeshes(const char *filedata,
unsigned int filesize,
const char *filename) {
if (filedata == NULL || filesize <= 0) {
@ -113,12 +113,15 @@ void extractmeshes(const char* filedata,
}
struct Header *h = (struct Header*)filedata;
struct MeshHeader *mh = NULL;
struct Batch *b = NULL;
unsigned int i;
bool ok;
for (i = 0; i < h -> numMesh; i++) {
//h -> numMesh
for (i = 0; i < 3; i++) {
ok = getmeshheader(&mh, i, filedata);
if (ok) {
printmeshheader(mh);
getmeshbatch(&b, mh, filedata);
printmeshbatch(b);
}
}
}