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Introduces formal setting of the output volume to SampleSource.

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Previously every output device was making its own decision. Which is increasingly less sustainable due to the CompoundSource.
This commit is contained in:
Thomas Harte
2018-03-09 13:23:18 -05:00
parent 53f05efb2d
commit 48737a32a7
16 changed files with 96 additions and 24 deletions
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Machines/Electron/SoundGenerator.cpp
+5 -1
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@@ -15,10 +15,14 @@ using namespace Electron;
SoundGenerator::SoundGenerator(Concurrency::DeferringAsyncTaskQueue &audio_queue) :
audio_queue_(audio_queue) {}
void SoundGenerator::set_sample_volume_range(std::int16_t range) {
volume_ = static_cast<unsigned int>(range / 2);
}
void SoundGenerator::get_samples(std::size_t number_of_samples, int16_t *target) {
if(is_enabled_) {
while(number_of_samples--) {
*target = static_cast<int16_t>((counter_ / (divider_+1)) * 8192);
*target = static_cast<int16_t>((counter_ / (divider_+1)) * volume_);
target++;
counter_ = (counter_ + 1) % ((divider_+1) * 2);
}