OSC.jl/src/OSC.jl

261 lines
7.7 KiB
Julia

module OSC
macro incfp(x) quote begin
local gensym_ = $(esc(x))
$(esc(x)) = $(esc(x))+1
gensym_
end end end
function stringify(data::Array{Uint8})
zeroInd = find(data.== 0)
if(length(zeroInd) == 0)
return string(map(char, data)...)
elseif(zeroInd[1] == 0)
return nothing
else
return string(map(char, data[1:zeroInd[1]-1])...)
end
end
function rtosc_argument_string(msg::Array{Uint8})#::ASCIIString
pos = 1
while(msg[pos += 1] != 0) end #skip pattern
while(msg[pos += 1] == 0) end #skip null
return stringify(msg[pos+1:end]); #skip comma
end
strip_args(args::ASCIIString) = replace(replace(args,"]",""),"[","")
function rtosc_narguments(msg::Array{Uint8})
length(strip_args(rtosc_argument_string(msg)))
end
has_reserved(typeChar::Char) = typeChar in "isbfhtdSrmc"
nreserved(args::ASCIIString) = sum(map(has_reserved, collect(args)))
function rtosc_type(msg::Array{Uint8}, nargument::Int)#::Char
@assert(nargument < rtosc_narguments(msg));
return strip_args(rtosc_argument_string(msg))[nargument+1]
end
align(pos) = pos+(4-(pos-1)%4)
function arg_off(msg::Array{Uint8}, idx::Int)#::Int
if(!has_reserved(rtosc_type(msg,idx)))
return 0;
end
#Iterate to the right position
args::ASCIIString = rtosc_argument_string(msg);
argc::Int = 1
pos::Int = 1
#Get past the Argument String
while(msg[pos] != ',') pos += 1 end
while(msg[pos] != 0) pos += 1 end
#Alignment
pos = align(pos)
#ignore any leading '[' or ']'
while(args[argc] in "[]") argc += 1 end
while(idx != 0)
bundle_length::Uint32 = 0;
arg = args[argc]
argc += 1
if(arg in "htd")
pos +=8;
elseif(arg in "mrfci")
pos += 4;
elseif(arg in "Ss")
while(msg[pos += 1] != 0) end
pos = align(pos)
elseif(arg == 'b')
bundle_length |= (msg[@incfp(pos)] << 24);
bundle_length |= (msg[@incfp(pos)] << 16);
bundle_length |= (msg[@incfp(pos)] << 8);
bundle_length |= (msg[@incfp(pos)]);
bundle_length += 4-bundle_length%4;
pos += bundle_length;
elseif(arg in "[]")#completely ignore array chars
idx += 1;
else #TFI
end
idx -= 1
end
pos;
end
#Calculate the size of the message without writing to a buffer
function vsosc_null(address::ASCIIString,
arguments::ASCIIString,
args...)
pos::Int = length(address)
pos = align(pos)
pos += 1+length(arguments)
pos = align(pos)
arg_pos = 1;
#Take care of varargs
for(arg = arguments)
if(arg in "htd")
arg_pos += 1
pos += 8;
elseif(arg in "mrcfi")
arg_pos += 1
pos += 4;
elseif(arg in "sS")
s::ASCIIString = args[@incfp(arg_pos)];
pos += length(s);
pos = align(pos)
elseif(arg in "b")
i::Int32 = sizeof(args[@incfp(arg_pos)])
pos += 4 + i;
pos = align(pos)
end #other args classes are ignored
end
return pos;
end
function rtosc_amessage(buffer::Array{Uint8},
len::Int,
address::ASCIIString,
arguments::ASCIIString,
args...)
total_len::Int = vsosc_null(address, arguments, args...);
for(i=1:total_len)
buffer[i] = 0
end
#Abort if the message cannot fit
if(total_len>len)
return 0;
end
pos::Int = 1;
#Address
for(C = address) buffer[@incfp(pos)] = C end
pos = align(pos)
#Arguments
buffer[@incfp(pos)] = ',';
for(A=arguments) buffer[@incfp(pos)] = A; end
pos = align(pos)
arg_pos::Int = 1;
for(arg = arguments)
@assert(arg != 0);
if(arg in "htd")
d::Uint64 = reinterpret(Uint64, args[@incfp(arg_pos)]);
buffer[@incfp(pos)] = ((d>>56) & 0xff);
buffer[@incfp(pos)] = ((d>>48) & 0xff);
buffer[@incfp(pos)] = ((d>>40) & 0xff);
buffer[@incfp(pos)] = ((d>>32) & 0xff);
buffer[@incfp(pos)] = ((d>>24) & 0xff);
buffer[@incfp(pos)] = ((d>>16) & 0xff);
buffer[@incfp(pos)] = ((d>>8) & 0xff);
buffer[@incfp(pos)] = (d & 0xff);
elseif(arg in "rfci")
i::Int32 = reinterpret(Int32, args[@incfp(arg_pos)]);
buffer[@incfp(pos)] = ((i>>24) & 0xff);
buffer[@incfp(pos)] = ((i>>16) & 0xff);
buffer[@incfp(pos)] = ((i>>8) & 0xff);
buffer[@incfp(pos)] = (i & 0xff);
elseif(arg in "m")
m = args[@incfp(arg_pos)];
buffer[@incfp(pos)] = m[1];
buffer[@incfp(pos)] = m[2];
buffer[@incfp(pos)] = m[3];
buffer[@incfp(pos)] = m[4];
elseif(arg in "Ss")
s = args[@incfp(arg_pos)];
for(C = s)
buffer[@incfp(pos)] = C
end
pos = align(pos)
elseif(arg == 'b')
b = args[@incfp(arg_pos)];
i = sizeof(b);
buffer[@incfp(pos)] = ((i>>24) & 0xff);
buffer[@incfp(pos)] = ((i>>16) & 0xff);
buffer[@incfp(pos)] = ((i>>8) & 0xff);
buffer[@incfp(pos)] = (i & 0xff);
for(U = b)
buffer[@incfp(pos)] = uint8(U);
end
pos = align(pos)
end
end
return pos-1;
end
function rtosc_argument(msg::Array{Uint8}, idx::Int)
typeChar::Char = rtosc_type(msg, idx);
#trivial case
if(!has_reserved(typeChar))
if(typeChar == 'T')
return true
elseif(typeChar == 'F')
return false;
end
else
arg_pos::Int = arg_off(msg, idx)
if(typeChar in "htd")
t::Uint64 = 0
t |= (uint64(msg[@incfp(arg_pos)]) << 56);
t |= (uint64(msg[@incfp(arg_pos)]) << 48);
t |= (uint64(msg[@incfp(arg_pos)]) << 40);
t |= (uint64(msg[@incfp(arg_pos)]) << 32);
t |= (uint64(msg[@incfp(arg_pos)]) << 24);
t |= (uint64(msg[@incfp(arg_pos)]) << 16);
t |= (uint64(msg[@incfp(arg_pos)]) << 8);
t |= (uint64(msg[@incfp(arg_pos)]));
if(typeChar == 'h')
return int64(t)
elseif(typeChar == 'd')
return reinterpret(Float64, t);
else
return t;
end
elseif(typeChar in "f")
return reinterpret(Float32,msg[arg_pos+(3:-1:0)])[1]
elseif(typeChar in "rci")
i::Int32 = 0
i |= (uint32(msg[@incfp(arg_pos)]) << 24);
i |= (uint32(msg[@incfp(arg_pos)]) << 16);
i |= (uint32(msg[@incfp(arg_pos)]) << 8);
i |= (uint32(msg[@incfp(arg_pos)]));
if(typeChar == 'r')
return uint32(i)
elseif(typeChar == 'c')
return char(i)
else
return i
end
elseif(typeChar in "m")
m = Array(Uint8, 4)
m[1] = msg[@incfp(arg_pos)]
m[2] = msg[@incfp(arg_pos)]
m[3] = msg[@incfp(arg_pos)]
m[4] = msg[@incfp(arg_pos)]
return m
elseif(typeChar in "b")
len::Int32 = 0
len |= (msg[@incfp(arg_pos)] << 24);
len |= (msg[@incfp(arg_pos)] << 16);
len |= (msg[@incfp(arg_pos)] << 8);
len |= (msg[@incfp(arg_pos)]);
return msg[arg_pos+(0:len-1)];
elseif(typeChar in "Ss")
return stringify(msg[arg_pos:end]);
end
end
return nothing;
end
end