static int getMaxElemSizeBandDataType(final Band[] bands) {
int maxSignedIntType = -1;
int maxUnsignedIntType = -1;
int maxFloatType = -1;
for (Band band : bands) {
int dt = band.getDataType();
if (ProductData.isIntType(dt)) {
if (ProductData.isUIntType(dt)) {
maxUnsignedIntType = Math.max(maxUnsignedIntType, dt);
} else {
maxSignedIntType = Math.max(maxSignedIntType, dt);
}
}
if (ProductData.isFloatingPointType(dt)) {
maxFloatType = Math.max(maxFloatType, dt);
}
}
if (maxFloatType != -1) {
if (maxUnsignedIntType == ProductData.TYPE_UINT32
|| maxSignedIntType == ProductData.TYPE_INT32) {
return ProductData.TYPE_FLOAT64;
} else {
return maxFloatType;
}
}
if (maxUnsignedIntType != -1) {
if (maxSignedIntType == -1) {
return maxUnsignedIntType;
}
if (ProductData.getElemSize(maxUnsignedIntType)
>= ProductData.getElemSize(maxSignedIntType)) {
int returnType = maxUnsignedIntType - 10 + 1;
if (returnType > 12) {
return ProductData.TYPE_FLOAT64;
} else {
return returnType;
}
}
}
if (maxSignedIntType != -1) {
return maxSignedIntType;
}
return DataBuffer.TYPE_UNDEFINED;
}
