Processes the source to destination bus.
| 57 | |
| 58 | // Processes the source to destination bus. |
| 59 | virtual void process(ContextRenderLock & r, |
| 60 | const lab::AudioBus * sourceBus, lab::AudioBus * destinationBus, |
| 61 | int framesToProcess) override |
| 62 | { |
| 63 | int srcChannels = (int) sourceBus->numberOfChannels(); |
| 64 | int dstChannels = (int) destinationBus->numberOfChannels(); |
| 65 | if (dstChannels != srcChannels) |
| 66 | { |
| 67 | _owner->output(0)->setNumberOfChannels(r, srcChannels); |
| 68 | destinationBus = _owner->output(0)->bus(r); |
| 69 | /// @todo no need to pass in the destination bus since owner is retained. |
| 70 | /// @todo perhaps flatten out AudioProcessor as well, as it's not adding anything particularly |
| 71 | } |
| 72 | |
| 73 | if (!srcChannels) |
| 74 | { |
| 75 | destinationBus->zero(); |
| 76 | return; |
| 77 | } |
| 78 | |
| 79 | ClipNode::Mode clipMode = static_cast<ClipNode::Mode>(mode->valueUint32()); |
| 80 | |
| 81 | if (clipMode == ClipNode::TANH) |
| 82 | { |
| 83 | /// @fixme these values should be per sample, not per quantum |
| 84 | /// -or- they should be settings if they don't vary per sample |
| 85 | float outputGain = aVal->value(); |
| 86 | float inputGain = bVal->value(); |
| 87 | |
| 88 | for (int channelIndex = 0; channelIndex < dstChannels; ++channelIndex) |
| 89 | { |
| 90 | int srcIndex = srcChannels < channelIndex ? srcChannels : channelIndex; |
| 91 | float const * source = sourceBus->channel(srcIndex)->data(); |
| 92 | float * destination = destinationBus->channel(channelIndex)->mutableData(); |
| 93 | for (int i = 0; i < framesToProcess; ++i) |
| 94 | { |
| 95 | *destination++ = outputGain * tanhf(inputGain * source[i]); |
| 96 | } |
| 97 | } |
| 98 | } |
| 99 | else |
| 100 | { |
| 101 | /// @fixme these values should be per sample, not per quantum |
| 102 | /// -or- they should be settings if they don't vary per sample |
| 103 | float minf = aVal->value(); |
| 104 | float maxf = bVal->value(); |
| 105 | |
| 106 | for (int channelIndex = 0; channelIndex < dstChannels; ++channelIndex) |
| 107 | { |
| 108 | int srcIndex = srcChannels < channelIndex ? srcChannels : channelIndex; |
| 109 | float const * source = sourceBus->channel(srcIndex)->data(); |
| 110 | float * destination = destinationBus->channel(channelIndex)->mutableData(); |
| 111 | for (int i = 0; i < framesToProcess; ++i) |
| 112 | { |
| 113 | float d = source[i]; |
| 114 | |
| 115 | if (d < minf) |
| 116 | d = minf; |
nothing calls this directly
no test coverage detected