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HLE DSP: More of it

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wheremyfoodat 2024-04-05 19:42:18 +03:00
parent 2548bde538
commit 5da93d17bd
2 changed files with 48 additions and 3 deletions
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24
include/audio/hle_core.hpp
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@ -6,6 +6,27 @@
#include "memory.hpp"
namespace Audio {
struct DSPSource {
std::array<float, 3> gain0, gain1, gain2;
// Audio buffer information
// https://www.3dbrew.org/wiki/DSP_Memory_Region
struct Buffer {
u32 paddr; // Physical address of the buffer
u32 sampleCount; // Total number of samples
u8 adpcmScale; // ADPCM predictor/scale
u8 pad; // Unknown
std::array<s16, 2> previousSamples; // ADPCM y[n-1] and y[n-2]
bool adpcmDirty;
bool looping;
u16 bufferID;
};
void reset();
DSPSource() { reset(); }
};
class HLE_DSP : public DSPCore {
// The audio frame types are public in case we want to use them for unit tests
public:
@ -24,6 +45,7 @@ namespace Audio {
template <typename T>
using QuadFrame = Frame<T, 4>;
using Source = Audio::DSPSource;
private:
enum class DSPState : u32 {
Off,
@ -61,7 +83,7 @@ namespace Audio {
Audio::HLE::SharedMemory& readRegion() { return readRegionIndex() == 0 ? dspRam.region0 : dspRam.region1; }
Audio::HLE::SharedMemory& writeRegion() { return readRegionIndex() == 0 ? dspRam.region1 : dspRam.region0; }
StereoFrame<s16> generateFrame();
void generateFrame(StereoFrame<s16>& frame);
void outputFrame();
public:
HLE_DSP(Memory& mem, Scheduler& scheduler, DSPService& dspService) : DSPCore(mem, scheduler, dspService) {}