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SPU: Zero out upper ADPCM filters 

Also in CD-ROM.
This commit is contained in:
Stenzek 2024-11-25 01:14:48 +10:00
parent 40a1bee9ea
commit 0076af6974
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2 changed files with 9 additions and 12 deletions
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13
src/core/cdrom.cpp
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@ -263,7 +263,7 @@ union XA_ADPCMBlockHeader
u8 bits;
BitField<u8, u8, 0, 4> shift;
BitField<u8, u8, 4, 2> filter;
BitField<u8, u8, 4, 4> filter;
// For both 4bit and 8bit ADPCM, reserved shift values 13..15 will act same as shift=9).
u8 GetShift() const
@ -3415,11 +3415,8 @@ s16 CDROM::SaturateVolume(s32 volume)
template<bool IS_STEREO, bool IS_8BIT>
void CDROM::DecodeXAADPCMChunks(const u8* chunk_ptr, s16* samples)
{
static constexpr std::array<s8, 16> s_xa_adpcm_filter_table_pos = {
{0, 60, 115, 98, 122, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}};
static constexpr std::array<s8, 16> s_xa_adpcm_filter_table_neg = {
{0, 0, -52, -55, -60, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}};
static constexpr std::array<s8, 16> filter_table_pos = {{0, 60, 115, 98, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}};
static constexpr std::array<s8, 16> filter_table_neg = {{0, 0, -52, -55, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}};
// The data layout is annoying here. Each word of data is interleaved with the other blocks, requiring multiple
// passes to decode the whole chunk.
@ -3440,8 +3437,8 @@ void CDROM::DecodeXAADPCMChunks(const u8* chunk_ptr, s16* samples)
const XA_ADPCMBlockHeader block_header{headers_ptr[block]};
const u8 shift = block_header.GetShift();
const u8 filter = block_header.GetFilter();
const s32 filter_pos = s_xa_adpcm_filter_table_pos[filter];
const s32 filter_neg = s_xa_adpcm_filter_table_neg[filter];
const s32 filter_pos = filter_table_pos[filter];
const s32 filter_neg = filter_table_neg[filter];
s16* out_samples_ptr =
IS_STEREO ? &samples[(block / 2) * (WORDS_PER_BLOCK * 2) + (block % 2)] : &samples[block * WORDS_PER_BLOCK];

8
src/core/spu.cpp
View File

@ -189,7 +189,7 @@ struct ADPCMBlock
u8 bits;
BitField<u8, u8, 0, 4> shift;
BitField<u8, u8, 4, 3> filter;
BitField<u8, u8, 4, 4> filter;
} shift_filter;
ADPCMFlags flags;
u8 data[NUM_SAMPLES_PER_ADPCM_BLOCK / 2];
@ -201,7 +201,7 @@ struct ADPCMBlock
return (shift > 12) ? 9 : shift;
}
u8 GetFilter() const { return std::min<u8>(shift_filter.filter, 4); }
u8 GetFilter() const { return shift_filter.filter; }
u8 GetNibble(u32 index) const { return (data[index / 2] >> ((index % 2) * 4)) & 0x0F; }
};
@ -1877,8 +1877,8 @@ void SPU::Voice::TickADSR()
void SPU::Voice::DecodeBlock(const ADPCMBlock& block)
{
static constexpr std::array<s32, 5> filter_table_pos = {{0, 60, 115, 98, 122}};
static constexpr std::array<s32, 5> filter_table_neg = {{0, 0, -52, -55, -60}};
static constexpr std::array<s8, 16> filter_table_pos = {{0, 60, 115, 98, 122, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}};
static constexpr std::array<s8, 16> filter_table_neg = {{0, 0, -52, -55, -60, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}};
// store samples needed for interpolation
current_block_samples[2] = current_block_samples[NUM_SAMPLES_FROM_LAST_ADPCM_BLOCK + NUM_SAMPLES_PER_ADPCM_BLOCK - 1];