void testDecode(shared_ptr <GLTFMesh> mesh, BinaryStream &bstream)
{
SC3DMCDecoder <unsigned short> decoder;
IndexedFaceSet <unsigned short> ifs;
unsigned char* outputData;
decoder.DecodeHeader(ifs, bstream);
unsigned int vertexSize = ifs.GetNCoord() * 3 * sizeof(float);
unsigned int normalSize = ifs.GetNNormal() * 3 * sizeof(float);
unsigned int texcoordSize = ifs.GetNFloatAttribute(0) * 2 * sizeof(float);
unsigned int indicesSize = ifs.GetNCoordIndex() * 3 * sizeof(unsigned short);
outputData = (unsigned char*)malloc(vertexSize + normalSize + texcoordSize + indicesSize);
size_t vertexOffset = indicesSize;
float* uncompressedVertices = (Real * const )(outputData + vertexOffset);
ifs.SetCoordIndex((unsigned short * const ) outputData );
ifs.SetCoord((Real * const )uncompressedVertices);
if (ifs.GetNNormal() > 0) {
ifs.SetNormal((Real * const )(outputData + indicesSize + vertexSize));
}
if (ifs.GetNFloatAttribute(0)) {
ifs.SetFloatAttribute(0, (Real * const )(outputData + indicesSize + vertexSize + normalSize));
}
decoder.DecodePlayload(ifs, bstream);
//---
shared_ptr <GLTFMeshAttribute> meshAttribute = mesh->getMeshAttribute(POSITION, 0);
meshAttribute->computeMinMax();
const double* min = meshAttribute->getMin();
const double* max = meshAttribute->getMax();
float* vertices = (float*)meshAttribute->getBufferView()->getBufferDataByApplyingOffset();
printf("coord nb:%d\n",(int)meshAttribute->getCount());
printf("min: %f %f %f\n", min[0], min[1], min[2]);
printf("max: %f %f %f\n", max[0], max[1], max[2]);
float maxQuantError[3];
maxQuantError[0] = (float)(max[0] - min[0]) / (2^12 - 1);
maxQuantError[1] = (float)(max[1] - min[1]) / (2^12 - 1);
maxQuantError[2] = (float)(max[2] - min[2]) / (2^12 - 1);
if (meshAttribute->getCount() == ifs.GetNCoord()) {
for (size_t i = 0 ; i < (meshAttribute->getCount() * 3) ; i++ ) {
float error = vertices[i] - uncompressedVertices[i];
if (error > maxQuantError[i%3]) {
printf("%d:input:%f compressed:%f\n",(int) i%3, vertices[i], uncompressedVertices[i]);
printf("delta is: %f\n", error);
} else {
//printf("ok\n");
}
}
} else {
printf("Fatal error: vertex count do not match\n");
}
free(outputData);
}
bool SaveIFS(std::string & fileName, const IndexedFaceSet<unsigned short> & ifs)
{
std::ofstream fout;
fout.open(fileName.c_str());
if (!fout.fail())
{
SaveIFSUnsignedShortArray(fout, "* CoordIndex", 0, (const unsigned short * const) ifs.GetCoordIndex(), ifs.GetNCoordIndex(), 3);
SaveIFSIntArray(fout, "* MatID", 0, (const long * const) ifs.GetIndexBufferID(), ifs.GetNCoordIndex(), 1);
SaveIFSFloatArray(fout, "* Coord", 0, ifs.GetCoord(), ifs.GetNCoord(), 3);
SaveIFSFloatArray(fout, "* Normal", 0, ifs.GetNormal(), ifs.GetNNormal(), 3);
for(unsigned long a = 0; a < ifs.GetNumFloatAttributes(); ++a)
{
SaveIFSFloatArray(fout, "* FloatAttribute", a, ifs.GetFloatAttribute(a), ifs.GetNFloatAttribute(a), ifs.GetFloatAttributeDim(a));
}
for(unsigned long a = 0; a < ifs.GetNumIntAttributes(); ++a)
{
SaveIFSIntArray(fout, "* IntAttribute", a, ifs.GetIntAttribute(a), ifs.GetNIntAttribute(a), ifs.GetIntAttributeDim(a));
}
fout.close();
}
else
{
std::cout << "Not able to create file" << std::endl;
return false;
}
return true;
}