ImageTGA::ImageTGA (const ImageBuffer &ibuff)
: _header (NULL)
{
const GLubyte *colormap = NULL;
const GLubyte *data_ptr;
try
{
_name = ibuff.filename ();
data_ptr = ibuff.data ();
_standardCoordSystem = true;
// Read TGA header
_header = reinterpret_cast<const TGA_Header *>(data_ptr);
data_ptr += sizeof (TGA_Header) + _header->id_lenght;
// Get image information
getTextureInfo ();
// Memory allocation for pixel data
_pixels = new GLubyte[_width * _height * _components];
// Read color map, if present
if (_header->colormap_type)
{
// NOTE: color map is stored in BGR
colormap = data_ptr;
data_ptr += _header->cm_length * (_header->cm_size >> 3);
}
// Decode image data
switch (_header->image_type)
{
case 0:
// No data
break;
case 1:
// Uncompressed 8 bits color index
readTGA8bits (data_ptr, colormap);
break;
case 2:
// Uncompressed 16-24-32 bits
switch (_header->pixel_depth)
{
case 16:
readTGA16bits (data_ptr);
break;
case 24:
readTGA24bits (data_ptr);
break;
case 32:
readTGA32bits (data_ptr);
break;
}
break;
case 3:
// Uncompressed 8 or 16 bits grayscale
if (_header->pixel_depth == 8)
readTGAgray8bits (data_ptr);
else // 16 bits
readTGAgray16bits (data_ptr);
break;
case 9:
// RLE compressed 8 bits color index
readTGA8bitsRLE (data_ptr, colormap);
break;
case 10:
// RLE compressed 16-24-32 bits
switch (_header->pixel_depth)
{
case 16:
readTGA16bitsRLE (data_ptr);
break;
case 24:
readTGA24bitsRLE (data_ptr);
break;
case 32:
readTGA32bitsRLE (data_ptr);
break;
}
break;
case 11:
// RLE compressed 8 or 16 bits grayscale
if (_header->pixel_depth == 8)
readTGAgray8bitsRLE (data_ptr);
else // 16 bits
readTGAgray16bitsRLE (data_ptr);
break;
default:
// Image type is not correct, free memory and quit
throw ImageException ("Unknown TGA image type", _name);
}
}
void vixo_hairStyleMaya::exportColor(MString uvInfo,MString colorInfo,MDataBlock& data)
{
//getUVinfo
ifstream fin(uvInfo.asChar(),ios_base::in|ios_base::binary);
int triNum;
fin.read((char*)&triNum,sizeof(int));
vector<int> hairNumPerTri(triNum);
fin.read((char*)&hairNumPerTri[0],sizeof(int)*triNum);
vector<int> ctrlVert(triNum*3);
fin.read((char*)&ctrlVert[0],sizeof(int)*triNum*3);
vector<int> hairStartIdxPerTri(triNum,0);
int hairNum=0;
for(int i=1;i<triNum;i++)
{
hairStartIdxPerTri[i]=hairStartIdxPerTri[i-1]+hairNumPerTri[i-1];
}
hairNum=hairStartIdxPerTri[triNum-1]+hairNumPerTri[triNum-1];
vector<float> uvs(hairNum*2);
fin.read((char*)&uvs[0],sizeof(float)*hairNum*2);
fin.close();
//getTextureInfo
vector<follicleColor> follicleInfo(hairNum);
getTextureInfo("densityMap",uvs,follicleInfo,data);
getTextureInfo("tipColor",uvs,follicleInfo,data);
getTextureInfo("baseColor",uvs,follicleInfo,data);
getTextureInfo("tipOpacity",uvs,follicleInfo,data);
getTextureInfo("baseOpacity",uvs,follicleInfo,data);
vector<streampos> startPos(triNum);
startPos[0]=sizeof(int)+sizeof(streampos)*triNum;
for(int i=1;i<triNum;i++)
{
startPos[i]=startPos[i-1].operator+(sizeof(int)+sizeof(follicleColor)*hairNumPerTri[i-1]);
}
//Êä³ö
fstream fout(colorInfo.asChar(),ios_base::out|ios_base::trunc|ios_base::binary);
fout.write((char*)&triNum,sizeof(int));
fout.write((char*)&startPos[0],sizeof(streampos)*triNum);
for(int i=0;i<triNum;i++)
{
fout.write((char*)&hairNumPerTri[i],sizeof(int));
fout.write((char*)&follicleInfo[hairStartIdxPerTri[i]],sizeof(follicleColor)*hairNumPerTri[i]);
}
fout.flush();
fout.close();
//Êä³ö
/*
colorInfo=colorInfo+"debug";
fout.open(colorInfo.asChar(),ios_base::out|ios_base::trunc);
fout<<triNum<<endl;
for(int i=0;i<triNum;i++)
{
fout<<i<<":"<<startPos[i]<<'\t'<<hairNumPerTri[i]<<endl;
for(int j=0;j<hairNumPerTri[i];j++)
{
fout<<'\t'<<j<<":"<<follicleInfo[hairStartIdxPerTri[i]+j].density<<'\t'<<follicleInfo[hairStartIdxPerTri[i]+j].tipColorB<<endl;
}
}
fout.flush();
fout.close();
*/
}