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Diffstat (limited to 'src/audio_core/renderer/command/mix/mix_ramp.h')
-rw-r--r-- | src/audio_core/renderer/command/mix/mix_ramp.h | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/src/audio_core/renderer/command/mix/mix_ramp.h b/src/audio_core/renderer/command/mix/mix_ramp.h new file mode 100644 index 000000000..770f57e80 --- /dev/null +++ b/src/audio_core/renderer/command/mix/mix_ramp.h @@ -0,0 +1,73 @@ +// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project +// SPDX-License-Identifier: GPL-2.0-or-later + +#pragma once + +#include <span> +#include <string> + +#include "audio_core/renderer/command/icommand.h" +#include "common/common_types.h" + +namespace AudioCore::AudioRenderer { +namespace ADSP { +class CommandListProcessor; +} + +/** + * AudioRenderer command for mixing an input mix buffer to an output mix buffer, with a volume + * applied to the input, and volume ramping to smooth out the transition. + */ +struct MixRampCommand : ICommand { + /** + * Print this command's information to a string. + * + * @param processor - The CommandListProcessor processing this command. + * @param string - The string to print into. + */ + void Dump(const ADSP::CommandListProcessor& processor, std::string& string) override; + + /** + * Process this command. + * + * @param processor - The CommandListProcessor processing this command. + */ + void Process(const ADSP::CommandListProcessor& processor) override; + + /** + * Verify this command's data is valid. + * + * @param processor - The CommandListProcessor processing this command. + * @return True if the command is valid, otherwise false. + */ + bool Verify(const ADSP::CommandListProcessor& processor) override; + + /// Fixed point precision + u8 precision; + /// Input mix buffer index + s16 input_index; + /// Output mix buffer index + s16 output_index; + /// Previous mix volume + f32 prev_volume; + /// Current mix volume + f32 volume; + /// Pointer to the previous sample buffer, used for depopping + CpuAddr previous_sample; +}; + +/** + * Mix input mix buffer into output mix buffer, with volume applied to the input. + * @tparam Q - Number of bits for fixed point operations. + * @param output - Output mix buffer. + * @param input - Input mix buffer. + * @param volume - Volume applied to the input. + * @param ramp - Ramp applied to volume every sample. + * @param sample_count - Number of samples to process. + * @return The final gained input sample, used for depopping. + */ +template <size_t Q> +s32 ApplyMixRamp(std::span<s32> output, std::span<const s32> input, const f32 volume_, + const f32 ramp_, const u32 sample_count); + +} // namespace AudioCore::AudioRenderer |