void FCDevice::writeDevicePixels(Document &msg)
{
/*
* Write pixels without mapping, from a JSON integer
* array in msg["pixels"]. The pixel array is removed from
* the reply to save network bandwidth.
*
* Pixel values are clamped to [0, 255], for convenience.
*/
const Value &pixels = msg["pixels"];
if (!pixels.IsArray()) {
msg.AddMember("error", "Pixel array is missing", msg.GetAllocator());
} else {
// Truncate to the framebuffer size, and only deal in whole pixels.
int numPixels = pixels.Size() / 3;
if (numPixels > NUM_PIXELS)
numPixels = NUM_PIXELS;
for (int i = 0; i < numPixels; i++) {
uint8_t *out = fbPixel(i);
const Value &r = pixels[i*3 + 0];
const Value &g = pixels[i*3 + 1];
const Value &b = pixels[i*3 + 2];
out[0] = std::max(0, std::min(255, r.IsInt() ? r.GetInt() : 0));
out[1] = std::max(0, std::min(255, g.IsInt() ? g.GetInt() : 0));
out[2] = std::max(0, std::min(255, b.IsInt() ? b.GetInt() : 0));
}
writeFramebuffer();
}
}
void BitWizardWSDevice::writeMessage(const OPC::Message &msg)
{
/*
* Dispatch an incoming OPC command
*/
// std::cout << "got a write message! ";
switch (msg.command) {
case OPC::SetPixelColors:
//std::cout << "setpixels...\n";
opcSetPixelColors(msg);
writeFramebuffer();
return;
case OPC::SystemExclusive:
std::cout << "sysex...\n";
// No relevant SysEx for this device
return;
default:
std::cout << "unhandled case...\n";
}
if (mVerbose) {
std::clog << "Unsupported OPC command: " << unsigned(msg.command) << "\n";
}
}
void FCDevice::flush()
{
// Erase any finished transfers
std::set<Transfer*>::iterator current = mPending.begin();
while (current != mPending.end()) {
std::set<Transfer*>::iterator next = current;
next++;
Transfer *fct = *current;
if (fct->finished) {
switch (fct->type) {
case FRAME:
mNumFramesPending--;
break;
default:
break;
}
mPending.erase(current);
delete fct;
}
current = next;
}
// Submit new frames, if we had a queued frame waiting
if (mFrameWaitingForSubmit && mNumFramesPending < MAX_FRAMES_PENDING) {
writeFramebuffer();
}
}
void FCDevice::writeMessage(const OPCSink::Message &msg)
{
/*
* Dispatch an incoming OPC command
*/
switch (msg.command) {
case OPCSink::SetPixelColors:
opcSetPixelColors(msg);
writeFramebuffer();
return;
case OPCSink::SystemExclusive:
opcSysEx(msg);
return;
}
if (mVerbose) {
std::clog << "Unsupported OPC command: " << unsigned(msg.command) << "\n";
}
}
