service/am: Add basic implementation of ChangeMainAppletMasterVolume
All this does is supply a new volume level and a fade time in nanoseconds for the volume transition to occur within.
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c07ebeac19
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@ -98,7 +98,7 @@ IAudioController::IAudioController() : ServiceFramework("IAudioController") {
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{0, &IAudioController::SetExpectedMasterVolume, "SetExpectedMasterVolume"},
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{1, &IAudioController::GetMainAppletExpectedMasterVolume, "GetMainAppletExpectedMasterVolume"},
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{2, &IAudioController::GetLibraryAppletExpectedMasterVolume, "GetLibraryAppletExpectedMasterVolume"},
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{3, nullptr, "ChangeMainAppletMasterVolume"},
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{3, &IAudioController::ChangeMainAppletMasterVolume, "ChangeMainAppletMasterVolume"},
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{4, &IAudioController::SetTransparentAudioRate, "SetTransparentVolumeRate"},
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};
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// clang-format on
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@ -139,6 +139,26 @@ void IAudioController::GetLibraryAppletExpectedMasterVolume(Kernel::HLERequestCo
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rb.Push(library_applet_volume);
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}
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void IAudioController::ChangeMainAppletMasterVolume(Kernel::HLERequestContext& ctx) {
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struct Parameters {
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float volume;
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s64 fade_time_ns;
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};
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static_assert(sizeof(Parameters) == 16);
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IPC::RequestParser rp{ctx};
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const auto parameters = rp.PopRaw<Parameters>();
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LOG_DEBUG(Service_AM, "called. volume={}, fade_time_ns={}", parameters.volume,
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parameters.fade_time_ns);
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main_applet_volume = std::clamp(parameters.volume, min_allowed_volume, max_allowed_volume);
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fade_time_ns = std::chrono::nanoseconds{parameters.fade_time_ns};
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IPC::ResponseBuilder rb{ctx, 2};
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rb.Push(RESULT_SUCCESS);
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}
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void IAudioController::SetTransparentAudioRate(Kernel::HLERequestContext& ctx) {
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IPC::RequestParser rp{ctx};
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const float transparent_volume_rate_tmp = rp.Pop<float>();
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@ -4,6 +4,7 @@
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#pragma once
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#include <chrono>
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#include <memory>
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#include <queue>
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#include "core/hle/kernel/writable_event.h"
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@ -81,6 +82,7 @@ private:
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void SetExpectedMasterVolume(Kernel::HLERequestContext& ctx);
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void GetMainAppletExpectedMasterVolume(Kernel::HLERequestContext& ctx);
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void GetLibraryAppletExpectedMasterVolume(Kernel::HLERequestContext& ctx);
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void ChangeMainAppletMasterVolume(Kernel::HLERequestContext& ctx);
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void SetTransparentAudioRate(Kernel::HLERequestContext& ctx);
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static constexpr float min_allowed_volume = 0.0f;
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@ -89,6 +91,12 @@ private:
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float main_applet_volume{0.25f};
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float library_applet_volume{max_allowed_volume};
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float transparent_volume_rate{min_allowed_volume};
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// Volume transition fade time in nanoseconds.
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// e.g. If the main applet volume was 0% and was changed to 50%
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// with a fade of 50ns, then over the course of 50ns,
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// the volume will gradually fade up to 50%
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std::chrono::nanoseconds fade_time_ns{0};
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};
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class IDisplayController final : public ServiceFramework<IDisplayController> {
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