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Updated offset related attributes before file write.

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This commit is contained in:
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2018-04-18 03:06:48 -07:00
parent 240864050e
commit ceb6409abd
3 changed files with 29 additions and 8 deletions
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2
demo/common.h
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@@ -62,6 +62,6 @@ void append(const char *filename, const char *t, unsigned size) {
if (written == 0) {
perror("write error");
}
printf("wrote %d\n", written);
printf("wrote %x\n", written);
}
}

33
demo/extractmesh.c
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@@ -1,13 +1,37 @@
#include "common.h"
#include "devil1geo.h"
void writemesh(struct MeshHeader *mh, struct Mesh *m, const char *filename, unsigned int i) {
void writemesh(const struct MeshHeader *mh,
const struct Mesh *m,
const char *filename,
unsigned int i) {
char *fn = (char*)malloc(strlen(filename) + 3 + 4);
sprintf(fn, "%s_%d.msh", filename, i);
struct Header h = {
1,
0,
0,
0,
0xCCCCCCCC,
0
};
// mesh header offset batches need to be changed for compability with parsing.
struct MeshHeader newmh = *(mh);
newmh.offsetBatches = sizeof(struct Header) + sizeof(struct MeshHeader);
// batch data the same treatment.
struct BatchData newbatch = *(m -> b) -> bd;
unsigned int vertices = m -> b -> bd -> numVertex;
write(fn, (char*)mh, sizeof(struct MeshHeader));
append(fn, (char*)(m -> b -> bd), sizeof(struct BatchData));
newbatch.offsetPositions = sizeof(struct MeshHeader) + sizeof(struct BatchData);
newbatch.offsetNormals = newbatch.offsetPositions + (sizeof(struct Coordinate) * vertices);
newbatch.offsetUVs = newbatch.offsetNormals + (sizeof(struct Coordinate) * vertices);
newbatch.offsetBoneIndexes = newbatch.offsetUVs + (sizeof(struct UVs) * vertices);
newbatch.offsetBoneWeights = newbatch.offsetBoneIndexes + (sizeof(struct BoneIndexes) * vertices);
// write to file.
write(fn, (char*)(&h), sizeof(struct Header));
append(fn, (char*)(&newmh), sizeof(struct MeshHeader));
append(fn, (char*)(&newbatch), sizeof(struct BatchData));
append(fn, (char*)(m -> b -> vd.positions), sizeof(struct Coordinate) * vertices);
DEVIL1GEO.printcoordinate(m -> b -> vd.positions, 3);
append(fn, (char*)(m -> b -> vd.normals), sizeof(struct Coordinate) * vertices);
append(fn, (char*)(m -> b -> vd.u), sizeof(struct UVs) * vertices);
append(fn, (char*)(m -> b -> vd.bi), sizeof(struct BoneIndexes) * vertices);
@@ -31,7 +55,6 @@ void extractmeshes(const char *filedata,
m.b = (struct Batch*)malloc(sizeof(struct Batch) * (mh -> numBatch));
if (m.b != NULL) {
DEVIL1GEO.getmesh(&m, i, filedata);
// do something with mesh e.g write to file.
writemesh(mh, &m, filename, i);
free(m.b);
}
@@ -43,8 +66,6 @@ int main(int argc, char ** argv) {
char *f = argv[1];
unsigned int bufsize = 0;
char *buffer = loadfile(f, &bufsize);
// unpackpld(buffer, bufsize, f);
// exporttextures(buffer, bufsize, f);
extractmeshes(buffer, bufsize, f);
free(buffer);
return 0;

2
src/devil1geo.c
View File

@@ -113,7 +113,7 @@ static bool getmesh(struct Mesh *m,
for (j = 0; j < mh -> numBatch; j++) {
unsigned int offset = mh->offsetBatches + j * sizeof(struct BatchData);
getmeshbatch(&b, offset, filedata);
printmeshbatch(&b);
// printmeshbatch(&b);
m -> b[j] = b;
}
done = true;