gered/Ms3dToMesh
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move file writing to the very end after all chunks have been populated, allowing errors to cancel out before any file writing is done

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Gered 2012-12-22 18:16:00 -05:00
parent 6a3f3af34f
commit 488b6a50b2
1 changed files with 36 additions and 24 deletions
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60
src/meshfile.cpp
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@ -29,9 +29,15 @@
BOOL ConvertToMeshFile(const std::string &meshFilename, const Ms3d *source, const MetadataFile *metadata, float scaleFactor) BOOL ConvertToMeshFile(const std::string &meshFilename, const Ms3d *source, const MetadataFile *metadata, float scaleFactor)
{ {
FILE *fp = fopen(meshFilename.c_str(), "wb"); VerticesChunk *vertices = NULL;
if (fp == NULL) NormalsChunk *normals = NULL;
return FALSE; TexCoordsChunk *texCoords = NULL;
TrianglesChunk *triangles = NULL;
GroupsChunk *groups = NULL;
JointsChunk *joints = NULL;
JointToVerticesChunk *jointToVertices = NULL;
KeyframesChunk *keyframes = NULL;
AnimationsChunk *animations = NULL;
// collect all unique vertices (position + normal + texcoord) and the // collect all unique vertices (position + normal + texcoord) and the
// original MS3D file data vertex index each one was originally from based // original MS3D file data vertex index each one was originally from based
@ -75,13 +81,11 @@ BOOL ConvertToMeshFile(const std::string &meshFilename, const Ms3d *source, cons
// now we start writing out the file // populate all the chunks with converted Ms3d data
WriteFileHeader(fp);
uint32_t numVertices = uniqueVertices.GetCount(); uint32_t numVertices = uniqueVertices.GetCount();
VerticesChunk *vertices = new VerticesChunk(); vertices = new VerticesChunk();
vertices->vertices.reserve(numVertices); vertices->vertices.reserve(numVertices);
for (uint32_t i = 0; i < numVertices; ++i) for (uint32_t i = 0; i < numVertices; ++i)
{ {
@ -90,9 +94,8 @@ BOOL ConvertToMeshFile(const std::string &meshFilename, const Ms3d *source, cons
vertices->vertices.push_back(v); vertices->vertices.push_back(v);
} }
WriteChunk(vertices, fp);
NormalsChunk *normals = new NormalsChunk(); normals = new NormalsChunk();
normals->normals.reserve(numVertices); normals->normals.reserve(numVertices);
for (uint32_t i = 0; i < numVertices; ++i) for (uint32_t i = 0; i < numVertices; ++i)
{ {
@ -100,9 +103,8 @@ BOOL ConvertToMeshFile(const std::string &meshFilename, const Ms3d *source, cons
normals->normals.push_back(n); normals->normals.push_back(n);
} }
WriteChunk(normals, fp);
TexCoordsChunk *texCoords = new TexCoordsChunk(); texCoords = new TexCoordsChunk();
texCoords->texCoords.reserve(numVertices); texCoords->texCoords.reserve(numVertices);
for (uint32_t i = 0; i < numVertices; ++i) for (uint32_t i = 0; i < numVertices; ++i)
{ {
@ -110,9 +112,8 @@ BOOL ConvertToMeshFile(const std::string &meshFilename, const Ms3d *source, cons
texCoords->texCoords.push_back(t); texCoords->texCoords.push_back(t);
} }
WriteChunk(texCoords, fp);
TrianglesChunk *triangles = new TrianglesChunk(); triangles = new TrianglesChunk();
for (uint32_t i = 0; i < source->GetNumTriangles(); ++i) for (uint32_t i = 0; i < source->GetNumTriangles(); ++i)
{ {
const Ms3dTriangle *triangle = &source->GetTriangles()[i]; const Ms3dTriangle *triangle = &source->GetTriangles()[i];
@ -141,9 +142,8 @@ BOOL ConvertToMeshFile(const std::string &meshFilename, const Ms3d *source, cons
triangles->triangles.push_back(t); triangles->triangles.push_back(t);
} }
WriteChunk(triangles, fp);
GroupsChunk *groups = new GroupsChunk(); groups = new GroupsChunk();
for (uint32_t i = 0; i < source->GetNumMeshes(); ++i) for (uint32_t i = 0; i < source->GetNumMeshes(); ++i)
{ {
const Ms3dMesh *mesh = &source->GetMeshes()[i]; const Ms3dMesh *mesh = &source->GetMeshes()[i];
@ -180,9 +180,8 @@ BOOL ConvertToMeshFile(const std::string &meshFilename, const Ms3d *source, cons
group->texture = extraGroupInfo->textureFile; group->texture = extraGroupInfo->textureFile;
} }
} }
WriteChunk(groups, fp);
JointsChunk *joints = new JointsChunk(); joints = new JointsChunk();
for (uint32_t i = 0; i < source->GetNumJoints(); ++i) for (uint32_t i = 0; i < source->GetNumJoints(); ++i)
{ {
const Ms3dJoint *joint = &source->GetJoints()[i]; const Ms3dJoint *joint = &source->GetJoints()[i];
@ -195,9 +194,8 @@ BOOL ConvertToMeshFile(const std::string &meshFilename, const Ms3d *source, cons
joints->joints.push_back(j); joints->joints.push_back(j);
} }
WriteChunk(joints, fp);
JointToVerticesChunk *jointToVertices = new JointToVerticesChunk(); jointToVertices = new JointToVerticesChunk();
for (uint32_t i = 0; i < uniqueVertices.GetCount(); ++i) for (uint32_t i = 0; i < uniqueVertices.GetCount(); ++i)
{ {
const UniqueVertex *vertex = uniqueVertices.GetVertex(i); const UniqueVertex *vertex = uniqueVertices.GetVertex(i);
@ -208,9 +206,8 @@ BOOL ConvertToMeshFile(const std::string &meshFilename, const Ms3d *source, cons
jointToVertices->jointVertexInfo.push_back(jvi); jointToVertices->jointVertexInfo.push_back(jvi);
} }
WriteChunk(jointToVertices, fp);
KeyframesChunk *keyframes = new KeyframesChunk(source->GetNumJoints()); keyframes = new KeyframesChunk(source->GetNumJoints());
for (int32_t i = 0; i < source->GetNumFrames(); ++i) for (int32_t i = 0; i < source->GetNumFrames(); ++i)
{ {
Keyframe *f = keyframes->AddFrame(); Keyframe *f = keyframes->AddFrame();
@ -245,18 +242,33 @@ BOOL ConvertToMeshFile(const std::string &meshFilename, const Ms3d *source, cons
f->rotation[j] = rotation->param; f->rotation[j] = rotation->param;
} }
} }
WriteChunk(keyframes, fp);
if (metadata->IsLoaded() && metadata->GetNumAnimations() > 0) if (metadata->IsLoaded() && metadata->GetNumAnimations() > 0)
{ {
AnimationsChunk *animations = new AnimationsChunk(); animations = new AnimationsChunk();
for (uint32_t i = 0; i < metadata->GetNumAnimations(); ++i) for (uint32_t i = 0; i < metadata->GetNumAnimations(); ++i)
{ {
AnimationSequence animation = metadata->GetAnimations()[i]; AnimationSequence animation = metadata->GetAnimations()[i];
animations->animations.push_back(animation); animations->animations.push_back(animation);
} }
WriteChunk(animations, fp);
} }
FILE *fp = fopen(meshFilename.c_str(), "wb");
if (fp == NULL)
return FALSE;
WriteFileHeader(fp);
WriteChunk(vertices, fp);
WriteChunk(normals, fp);
WriteChunk(texCoords, fp);
WriteChunk(triangles, fp);
WriteChunk(groups, fp);
WriteChunk(joints, fp);
WriteChunk(jointToVertices, fp);
WriteChunk(keyframes, fp);
WriteChunk(animations, fp);
fclose(fp);
return TRUE; return TRUE;
} }