| 386 | } |
| 387 | |
| 388 | void Rjp1::modulateVolumeEnvelope(Rjp1Channel *channel) { |
| 389 | if (channel->envelopeMode) { |
| 390 | int16 es = channel->envelopeScale; |
| 391 | if (es) { |
| 392 | uint8 m = channel->envelopeEnd1; |
| 393 | if (m == 0) { |
| 394 | es = 0; |
| 395 | } else { |
| 396 | es *= m; |
| 397 | m = channel->envelopeEnd2; |
| 398 | if (m == 0) { |
| 399 | es = 0; |
| 400 | } else { |
| 401 | es /= m; |
| 402 | } |
| 403 | } |
| 404 | } |
| 405 | channel->envelopeVolume = channel->envelopeStart - es; |
| 406 | --channel->envelopeEnd1; |
| 407 | if (channel->envelopeEnd1 == -1) { |
| 408 | switch (channel->envelopeMode) { |
| 409 | case 0: |
| 410 | break; |
| 411 | case 2: |
| 412 | setSustain(channel); |
| 413 | break; |
| 414 | case 4: |
| 415 | setDecay(channel); |
| 416 | break; |
| 417 | case -1: |
| 418 | setSustain(channel); |
| 419 | break; |
| 420 | default: |
| 421 | //error("Unhandled envelope mode %d", channel->envelopeMode); |
| 422 | break; |
| 423 | } |
| 424 | return; |
| 425 | } |
| 426 | } |
| 427 | channel->volume = channel->envelopeVolume; |
| 428 | } |
| 429 | |
| 430 | void Rjp1::setSustain(Rjp1Channel *channel) { |
| 431 | channel->envelopeMode = 0; |
nothing calls this directly
no outgoing calls
no test coverage detected