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service/audren_u: Handle variadic command buffers in GetWorkBufferSize()
Also introduced in REV5 was a variable-size audio command buffer. This also affects how the size of the work buffer should be determined, so we can add handling for this as well. Thankfully, no other alterations were made to how the work buffer size is calculated in 7.0.0-8.0.0. There were indeed changes made to to how some of the actual audio commands are generated though (particularly in REV7), however they don't apply here.
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@ -263,12 +263,15 @@ void AudRenU::OpenAudioRenderer(Kernel::HLERequestContext& ctx) {
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OpenAudioRendererImpl(ctx);
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}
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static u64 CalculateNumPerformanceEntries(const AudioCore::AudioRendererParameter& params) {
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// +1 represents the final mix.
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return u64{params.effect_count} + params.submix_count + params.sink_count + params.voice_count +
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1;
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}
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void AudRenU::GetAudioRendererWorkBufferSize(Kernel::HLERequestContext& ctx) {
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LOG_DEBUG(Service_Audio, "called");
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IPC::RequestParser rp{ctx};
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const auto params = rp.PopRaw<AudioCore::AudioRendererParameter>();
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// Several calculations below align the sizes being calculated
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// onto a 64 byte boundary.
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static constexpr u64 buffer_alignment_size = 64;
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@ -278,6 +281,10 @@ void AudRenU::GetAudioRendererWorkBufferSize(Kernel::HLERequestContext& ctx) {
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// the result of some of their calcularions on a 16 byte boundary.
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static constexpr u64 info_field_alignment_size = 16;
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// Maximum detail entries that may exist at one time for performance
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// frame statistics.
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static constexpr u64 max_perf_detail_entries = 100;
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// Size of the data structure representing the bulk of the voice-related state.
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static constexpr u64 voice_state_size = 0x100;
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@ -440,14 +447,9 @@ void AudRenU::GetAudioRendererWorkBufferSize(Kernel::HLERequestContext& ctx) {
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const u64 entry_size = is_v2 ? 0x18 : 0x10;
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const u64 detail_size = is_v2 ? 0x18 : 0x10;
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constexpr u64 max_detail_entries = 100;
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// + 1 to include the final mix, similar to calculating mix info.
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const u64 entry_count = u64{params.effect_count} + params.submix_count + params.sink_count +
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params.voice_count + 1;
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const u64 entry_count = CalculateNumPerformanceEntries(params);
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const u64 size_per_frame =
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header_size + (entry_size * entry_count) + (detail_size * max_detail_entries);
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header_size + (entry_size * entry_count) + (detail_size * max_perf_detail_entries);
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u64 size = 0;
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size += Common::AlignUp(size_per_frame * params.performance_frame_count + 1,
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@ -458,11 +460,81 @@ void AudRenU::GetAudioRendererWorkBufferSize(Kernel::HLERequestContext& ctx) {
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};
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// Calculates the part of the size that relates to the audio command buffer.
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const auto calculate_command_buffer_size = [] {
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constexpr u64 command_buffer_size = 0x18000;
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constexpr u64 alignment = (buffer_alignment_size - 1) * 2;
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return command_buffer_size + alignment;
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};
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const auto calculate_command_buffer_size =
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[this](const AudioCore::AudioRendererParameter& params) {
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constexpr u64 alignment = (buffer_alignment_size - 1) * 2;
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if (!IsFeatureSupported(AudioFeatures::VariadicCommandBuffer, params.revision)) {
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constexpr u64 command_buffer_size = 0x18000;
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return command_buffer_size + alignment;
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}
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// When the variadic command buffer is supported, this means
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// the command generator for the audio renderer can issue commands
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// that are (as one would expect), variable in size. So what we need to do
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// is determine the maximum possible size for a few command data structures
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// then multiply them by the amount of present commands indicated by the given
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// respective audio parameters.
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constexpr u64 max_biquad_filters = 2;
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constexpr u64 max_mix_buffers = 24;
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constexpr u64 biquad_filter_command_size = 0x2C;
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constexpr u64 depop_mix_command_size = 0x24;
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constexpr u64 depop_setup_command_size = 0x50;
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constexpr u64 effect_command_max_size = 0x540;
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constexpr u64 mix_command_size = 0x1C;
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constexpr u64 mix_ramp_command_size = 0x24;
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constexpr u64 mix_ramp_grouped_command_size = 0x13C;
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constexpr u64 perf_command_size = 0x28;
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constexpr u64 sink_command_size = 0x130;
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constexpr u64 submix_command_max_size =
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depop_mix_command_size + (mix_command_size * max_mix_buffers) * max_mix_buffers;
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constexpr u64 volume_command_size = 0x1C;
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constexpr u64 volume_ramp_command_size = 0x20;
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constexpr u64 voice_biquad_filter_command_size =
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biquad_filter_command_size * max_biquad_filters;
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constexpr u64 voice_data_command_size = 0x9C;
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const u64 voice_command_max_size =
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(params.splitter_count * depop_setup_command_size) +
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(voice_data_command_size + voice_biquad_filter_command_size +
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volume_ramp_command_size + mix_ramp_grouped_command_size);
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// Now calculate the individual elements that comprise the size and add them together.
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const u64 effect_commands_size = params.effect_count * effect_command_max_size;
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const u64 final_mix_commands_size =
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depop_mix_command_size + volume_command_size * max_mix_buffers;
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const u64 perf_commands_size =
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perf_command_size *
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(CalculateNumPerformanceEntries(params) + max_perf_detail_entries);
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const u64 sink_commands_size = params.sink_count * sink_command_size;
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const u64 splitter_commands_size =
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params.num_splitter_send_channels * max_mix_buffers * mix_ramp_command_size;
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const u64 submix_commands_size = params.submix_count * submix_command_max_size;
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const u64 voice_commands_size = params.voice_count * voice_command_max_size;
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return effect_commands_size + final_mix_commands_size + perf_commands_size +
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sink_commands_size + splitter_commands_size + submix_commands_size +
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voice_commands_size + alignment;
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};
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IPC::RequestParser rp{ctx};
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const auto params = rp.PopRaw<AudioCore::AudioRendererParameter>();
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u64 size = 0;
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size += calculate_mix_buffer_sizes(params);
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@ -479,7 +551,7 @@ void AudRenU::GetAudioRendererWorkBufferSize(Kernel::HLERequestContext& ctx) {
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size += calculate_sink_info_size(params);
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size += calculate_voice_state_size(params);
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size += calculate_perf_size(params);
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size += calculate_command_buffer_size();
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size += calculate_command_buffer_size(params);
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// finally, 4KB page align the size, and we're done.
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size = Common::AlignUp(size, 4096);
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@ -526,11 +598,14 @@ void AudRenU::OpenAudioRendererImpl(Kernel::HLERequestContext& ctx) {
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}
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bool AudRenU::IsFeatureSupported(AudioFeatures feature, u32_le revision) const {
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u32_be version_num = (revision - Common::MakeMagic('R', 'E', 'V', '0')); // Byte swap
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// Byte swap
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const u32_be version_num = revision - Common::MakeMagic('R', 'E', 'V', '0');
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switch (feature) {
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case AudioFeatures::Splitter:
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return version_num >= 2U;
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case AudioFeatures::PerformanceMetricsVersion2:
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case AudioFeatures::VariadicCommandBuffer:
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return version_num >= 5U;
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default:
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return false;
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@ -29,6 +29,7 @@ private:
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enum class AudioFeatures : u32 {
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Splitter,
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PerformanceMetricsVersion2,
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VariadicCommandBuffer,
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};
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bool IsFeatureSupported(AudioFeatures feature, u32_le revision) const;
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