summaryrefslogtreecommitdiffstats
path: root/src/audio_core/hle/dsp.h
diff options
context:
space:
mode:
Diffstat (limited to 'src/audio_core/hle/dsp.h')
-rw-r--r--src/audio_core/hle/dsp.h72
1 files changed, 42 insertions, 30 deletions
diff --git a/src/audio_core/hle/dsp.h b/src/audio_core/hle/dsp.h
index 5b216eb87..f4c4b01e2 100644
--- a/src/audio_core/hle/dsp.h
+++ b/src/audio_core/hle/dsp.h
@@ -23,16 +23,15 @@ class Sink;
namespace DSP {
namespace HLE {
-// The application-accessible region of DSP memory consists of two parts.
-// Both are marked as IO and have Read/Write permissions.
+// The application-accessible region of DSP memory consists of two parts. Both are marked as IO and
+// have Read/Write permissions.
//
// First Region: 0x1FF50000 (Size: 0x8000)
// Second Region: 0x1FF70000 (Size: 0x8000)
//
// The DSP reads from each region alternately based on the frame counter for each region much like a
// double-buffer. The frame counter is located as the very last u16 of each region and is
-// incremented
-// each audio tick.
+// incremented each audio tick.
constexpr VAddr region0_base = 0x1FF50000;
constexpr VAddr region1_base = 0x1FF70000;
@@ -92,14 +91,12 @@ static_assert(std::is_trivially_copyable<u32_dsp>::value, "u32_dsp isn't trivial
// See also: DSP::HLE::PipeRead.
//
// Note that the above addresses do vary slightly between audio firmwares observed; the addresses
-// are
-// not fixed in stone. The addresses above are only an examplar; they're what this implementation
-// does and provides to applications.
+// are not fixed in stone. The addresses above are only an examplar; they're what this
+// implementation does and provides to applications.
//
// Application requests the DSP service to convert DSP addresses into ARM11 virtual addresses using
-// the
-// ConvertProcessAddressFromDspDram service call. Applications seem to derive the addresses for the
-// second region via:
+// the ConvertProcessAddressFromDspDram service call. Applications seem to derive the addresses for
+// the second region via:
// second_region_dsp_addr = first_region_dsp_addr | 0x10000
//
// Applications maintain most of its own audio state, the memory region is used mainly for
@@ -107,7 +104,7 @@ static_assert(std::is_trivially_copyable<u32_dsp>::value, "u32_dsp isn't trivial
//
// In the documentation below, filter and effect transfer functions are specified in the z domain.
// (If you are more familiar with the Laplace transform, z = exp(sT). The z domain is the digital
-// frequency domain, just like how the s domain is the analog frequency domain.)
+// frequency domain, just like how the s domain is the analog frequency domain.)
#define INSERT_PADDING_DSPWORDS(num_words) INSERT_PADDING_BYTES(2 * (num_words))
@@ -137,8 +134,8 @@ struct SourceConfiguration {
BitField<0, 1, u32_le> format_dirty;
BitField<1, 1, u32_le> mono_or_stereo_dirty;
BitField<2, 1, u32_le> adpcm_coefficients_dirty;
- BitField<3, 1, u32_le>
- partial_embedded_buffer_dirty; ///< Tends to be set when a looped buffer is queued.
+ /// Tends to be set when a looped buffer is queued.
+ BitField<3, 1, u32_le> partial_embedded_buffer_dirty;
BitField<4, 1, u32_le> partial_reset_flag;
BitField<16, 1, u32_le> enable_dirty;
@@ -146,8 +143,8 @@ struct SourceConfiguration {
BitField<18, 1, u32_le> rate_multiplier_dirty;
BitField<19, 1, u32_le> buffer_queue_dirty;
BitField<20, 1, u32_le> loop_related_dirty;
- BitField<21, 1, u32_le>
- play_position_dirty; ///< Tends to also be set when embedded buffer is updated.
+ /// Tends to also be set when embedded buffer is updated.
+ BitField<21, 1, u32_le> play_position_dirty;
BitField<22, 1, u32_le> filters_enabled_dirty;
BitField<23, 1, u32_le> simple_filter_dirty;
BitField<24, 1, u32_le> biquad_filter_dirty;
@@ -162,9 +159,9 @@ struct SourceConfiguration {
// Gain control
/**
- * Gain is between 0.0-1.0. This determines how much will this source appear on
- * each of the 12 channels that feed into the intermediate mixers.
- * Each of the three intermediate mixers is fed two left and two right channels.
+ * Gain is between 0.0-1.0. This determines how much will this source appear on each of the
+ * 12 channels that feed into the intermediate mixers. Each of the three intermediate mixers
+ * is fed two left and two right channels.
*/
float_le gain[3][4];
@@ -173,7 +170,11 @@ struct SourceConfiguration {
/// Multiplier for sample rate. Resampling occurs with the selected interpolation method.
float_le rate_multiplier;
- enum class InterpolationMode : u8 { Polyphase = 0, Linear = 1, None = 2 };
+ enum class InterpolationMode : u8 {
+ Polyphase = 0,
+ Linear = 1,
+ None = 2,
+ };
InterpolationMode interpolation_mode;
INSERT_PADDING_BYTES(1); ///< Interpolation related
@@ -197,8 +198,7 @@ struct SourceConfiguration {
* The transfer function of this filter is:
* H(z) = (b0 + b1 z^-1 + b2 z^-2) / (1 - a1 z^-1 - a2 z^-2)
* Nintendo chose to negate the feedbackward coefficients. This differs from standard
- * notation
- * as in: https://ccrma.stanford.edu/~jos/filters/Direct_Form_I.html
+ * notation as in: https://ccrma.stanford.edu/~jos/filters/Direct_Form_I.html
* Values are signed fixed point with 14 fractional bits.
*/
struct BiquadFilter {
@@ -246,8 +246,8 @@ struct SourceConfiguration {
u8 is_looping;
/// This value is shown in SourceStatus::previous_buffer_id when this buffer has
- /// finished.
- /// This allows the emulated application to tell what buffer is currently playing
+ /// finished. This allows the emulated application to tell what buffer is currently
+ /// playing.
u16_le buffer_id;
INSERT_PADDING_DSPWORDS(1);
@@ -275,9 +275,16 @@ struct SourceConfiguration {
/// Note a sample takes up different number of bytes in different buffer formats.
u32_dsp length;
- enum class MonoOrStereo : u16_le { Mono = 1, Stereo = 2 };
+ enum class MonoOrStereo : u16_le {
+ Mono = 1,
+ Stereo = 2,
+ };
- enum class Format : u16_le { PCM8 = 0, PCM16 = 1, ADPCM = 2 };
+ enum class Format : u16_le {
+ PCM8 = 0,
+ PCM16 = 1,
+ ADPCM = 2,
+ };
union {
u16_le flags1_raw;
@@ -349,12 +356,16 @@ struct DspConfiguration {
};
/// The DSP has three intermediate audio mixers. This controls the volume level (0.0-1.0) for
- /// each at the final mixer
+ /// each at the final mixer.
float_le volume[3];
INSERT_PADDING_DSPWORDS(3);
- enum class OutputFormat : u16_le { Mono = 0, Stereo = 1, Surround = 2 };
+ enum class OutputFormat : u16_le {
+ Mono = 0,
+ Stereo = 1,
+ Surround = 2,
+ };
OutputFormat output_format;
@@ -386,9 +397,10 @@ struct DspConfiguration {
u16_le enable;
INSERT_PADDING_DSPWORDS(1);
u16_le outputs;
- u32_dsp work_buffer_address; ///< The application allocates a block of memory for the DSP to
- /// use as a work buffer.
- u16_le frame_count; ///< Frames to delay by
+ /// The application allocates a block of memory for the DSP to use as a work buffer.
+ u32_dsp work_buffer_address;
+ /// Frames to delay by
+ u16_le frame_count;
// Coefficients
s16_le g; ///< Fixed point with 7 fractional bits