std::wstring IEDriverServer::ReadRequestBody(struct mg_connection *conn, const struct mg_request_info *request_info) {
std::wstring request_body = L"";
int content_length = 0;
for (int header_index = 0; header_index < 64; ++header_index) {
if (request_info->http_headers[header_index].name == NULL) {
break;
}
if (strcmp(request_info->http_headers[header_index].name, "Content-Length") == 0) {
content_length = atoi(request_info->http_headers[header_index].value);
break;
}
}
if (content_length == 0) {
request_body = L"{}";
} else {
std::vector<char> input_buffer(content_length + 1);
int bytes_read = 0;
while (bytes_read < content_length) {
bytes_read += mg_read(conn, &input_buffer[bytes_read], content_length - bytes_read);
}
input_buffer[content_length] = '\0';
int output_buffer_size = ::MultiByteToWideChar(CP_UTF8, 0, &input_buffer[0], -1, NULL, 0);
vector<TCHAR> output_buffer(output_buffer_size);
::MultiByteToWideChar(CP_UTF8, 0, &input_buffer[0], -1, &output_buffer[0], output_buffer_size);
request_body.append(&output_buffer[0], bytes_read);
}
return request_body;
}
TypedImage LoadLz4(std::istream& in)
{
#ifdef HAVE_LZ4
// Read in header, uncompressed
lz4_image_header header;
in.read( (char*)&header, sizeof(header));
TypedImage img(header.w, header.h, PixelFormatFromString(header.fmt));
std::unique_ptr<char[]> input_buffer(new char[header.compressed_size]);
in.read(input_buffer.get(), header.compressed_size);
const int decompressed_size = LZ4_decompress_safe(input_buffer.get(), (char*)img.ptr, header.compressed_size, img.SizeBytes());
if (decompressed_size < 0)
throw std::runtime_error(FormatString("A negative result from LZ4_decompress_safe indicates a failure trying to decompress the data. See exit code (%) for value returned.", decompressed_size));
if (decompressed_size == 0)
throw std::runtime_error("I'm not sure this function can ever return 0. Documentation in lz4.h doesn't indicate so.");
if (decompressed_size != (int)img.SizeBytes())
throw std::runtime_error(FormatString("decompressed size % is not equal to predicted size %", decompressed_size, img.SizeBytes()));
return img;
#else
PANGOLIN_UNUSED(in);
throw std::runtime_error("Rebuild Pangolin for LZ4 support.");
#endif // HAVE_LZ4
}
std::vector<float> prefix_sum(const std::vector<float> &input, cl_environment& env, size_t block_size) {
size_t input_size_bytes = sizeof(float) * input.size();
cl::Buffer input_buffer(env.context, CL_MEM_READ_ONLY, input_size_bytes);
env.queue.enqueueWriteBuffer(input_buffer, CL_TRUE, 0, input_size_bytes, input.data());
cl::Buffer result_buffer = cl_prefix_sum(input_buffer, input.size(), env, block_size);
std::vector<float> result(input.size());
env.queue.enqueueReadBuffer(result_buffer, CL_TRUE, 0, input_size_bytes, result.data());
env.queue.finish();
return result;
}
void test_resampler_duplex(uint32_t input_channels, uint32_t output_channels,
uint32_t input_rate, uint32_t output_rate,
uint32_t target_rate, float chunk_duration)
{
cubeb_stream_params input_params;
cubeb_stream_params output_params;
osc_state state;
input_params.format = output_params.format = cubeb_format<T>();
state.input_channels = input_params.channels = input_channels;
state.output_channels = output_params.channels = output_channels;
input_params.rate = input_rate;
state.output_rate = output_params.rate = output_rate;
state.target_rate = target_rate;
long got;
cubeb_resampler * resampler =
cubeb_resampler_create((cubeb_stream*)nullptr, &input_params, &output_params, target_rate,
data_cb_resampler, (void*)&state, CUBEB_RESAMPLER_QUALITY_VOIP);
long latency = cubeb_resampler_latency(resampler);
const uint32_t duration_s = 2;
int32_t duration_frames = duration_s * target_rate;
uint32_t input_array_frame_count = ceil(chunk_duration * input_rate / 1000) + ceilf(static_cast<float>(input_rate) / target_rate) * 2;
uint32_t output_array_frame_count = chunk_duration * output_rate / 1000;
auto_array<float> input_buffer(input_channels * input_array_frame_count);
auto_array<float> output_buffer(output_channels * output_array_frame_count);
auto_array<float> expected_resampled_input(input_channels * duration_frames);
auto_array<float> expected_resampled_output(output_channels * output_rate * duration_s);
state.max_output_phase_index = duration_s * target_rate;
expected_resampled_input.push_silence(input_channels * duration_frames);
expected_resampled_output.push_silence(output_channels * output_rate * duration_s);
/* expected output is a 440Hz sine wave at 16kHz */
fill_with_sine(expected_resampled_input.data() + latency,
target_rate, input_channels, duration_frames - latency, 0);
/* expected output is a 440Hz sine wave at 32kHz */
fill_with_sine(expected_resampled_output.data() + latency,
output_rate, output_channels, output_rate * duration_s - latency, 0);
while (state.output_phase_index != state.max_output_phase_index) {
uint32_t leftover_samples = input_buffer.length() * input_channels;
input_buffer.reserve(input_array_frame_count);
state.input_phase_index = fill_with_sine(input_buffer.data() + leftover_samples,
input_rate,
input_channels,
input_array_frame_count - leftover_samples,
state.input_phase_index);
long input_consumed = input_array_frame_count;
input_buffer.set_length(input_array_frame_count);
got = cubeb_resampler_fill(resampler,
input_buffer.data(), &input_consumed,
output_buffer.data(), output_array_frame_count);
/* handle leftover input */
if (input_array_frame_count != static_cast<uint32_t>(input_consumed)) {
input_buffer.pop(nullptr, input_consumed * input_channels);
} else {
input_buffer.clear();
}
state.output.push(output_buffer.data(), got * state.output_channels);
}
dump("input_expected.raw", expected_resampled_input.data(), expected_resampled_input.length());
dump("output_expected.raw", expected_resampled_output.data(), expected_resampled_output.length());
dump("input.raw", state.input.data(), state.input.length());
dump("output.raw", state.output.data(), state.output.length());
ASSERT_TRUE(array_fuzzy_equal(state.input, expected_resampled_input, epsilon<T>(input_rate/target_rate)));
ASSERT_TRUE(array_fuzzy_equal(state.output, expected_resampled_output, epsilon<T>(output_rate/target_rate)));
cubeb_resampler_destroy(resampler);
}
// do process input requests, return 0 is done, 1 is call again to complete
int DoProcessReply(SSL& ssl)
{
// wait for input if blocking
if (!ssl.useSocket().wait()) {
ssl.SetError(receive_error);
return 0;
}
uint ready = ssl.getSocket().get_ready();
if (!ready)
ready= 64;
// add buffered data if its there
input_buffer* buffered = ssl.useBuffers().TakeRawInput();
uint buffSz = buffered ? buffered->get_size() : 0;
input_buffer buffer(buffSz + ready);
if (buffSz) {
buffer.assign(buffered->get_buffer(), buffSz);
ysDelete(buffered);
buffered = 0;
}
// add new data
uint read = ssl.useSocket().receive(buffer.get_buffer() + buffSz, ready);
if (read == static_cast<uint>(-1)) {
ssl.SetError(receive_error);
return 0;
}
buffer.add_size(read);
uint offset = 0;
const MessageFactory& mf = ssl.getFactory().getMessage();
// old style sslv2 client hello?
if (ssl.getSecurity().get_parms().entity_ == server_end &&
ssl.getStates().getServer() == clientNull)
if (buffer.peek() != handshake) {
ProcessOldClientHello(buffer, ssl);
if (ssl.GetError())
return 0;
}
while(!buffer.eof()) {
// each record
RecordLayerHeader hdr;
bool needHdr = false;
if (static_cast<uint>(RECORD_HEADER) > buffer.get_remaining())
needHdr = true;
else {
buffer >> hdr;
ssl.verifyState(hdr);
}
if (ssl.GetError())
return 0;
// make sure we have enough input in buffer to process this record
if (needHdr || hdr.length_ > buffer.get_remaining()) {
// put header in front for next time processing
uint extra = needHdr ? 0 : RECORD_HEADER;
uint sz = buffer.get_remaining() + extra;
ssl.useBuffers().SetRawInput(NEW_YS input_buffer(sz,
buffer.get_buffer() + buffer.get_current() - extra, sz));
return 1;
}
while (buffer.get_current() < hdr.length_ + RECORD_HEADER + offset) {
// each message in record, can be more than 1 if not encrypted
if (ssl.GetError())
return 0;
if (ssl.getSecurity().get_parms().pending_ == false) { // cipher on
// sanity check for malicious/corrupted/illegal input
if (buffer.get_remaining() < hdr.length_) {
ssl.SetError(bad_input);
return 0;
}
decrypt_message(ssl, buffer, hdr.length_);
if (ssl.GetError())
return 0;
}
mySTL::auto_ptr<Message> msg(mf.CreateObject(hdr.type_));
if (!msg.get()) {
ssl.SetError(factory_error);
return 0;
}
buffer >> *msg;
msg->Process(buffer, ssl);
if (ssl.GetError())
return 0;
}
offset += hdr.length_ + RECORD_HEADER;
}
return 0;
}
