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Refactor auxiliary assembly data generation
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@Gumball2415
Gumball2415 committed Feb 8, 2024
1 parent febc65e commit 72148d6
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Showing 6 changed files with 374 additions and 377 deletions.
190 changes: 189 additions & 1 deletion Source/ChunkRenderText.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -79,7 +79,11 @@ const stChunkRenderFunc CChunkRenderText::RENDER_FUNCTIONS[] = {
{CHUNK_WAVES, &CChunkRenderText::StoreWavesChunk}
};

CChunkRenderText::CChunkRenderText(CFile *pFile) : m_pFile(pFile)
CChunkRenderText::CChunkRenderText(CFile *pFile) : m_pFile(pFile),
m_pFileNSFHeader(nullptr),
m_pFileNSFConfig(nullptr),
m_pFilePeriods(nullptr),
m_pFileVibrato(nullptr)
{
}

Expand Down Expand Up @@ -476,9 +480,193 @@ void CChunkRenderText::StoreWavesChunk(CChunk *pChunk, CFile *pFile)

void CChunkRenderText::WriteFileString(const CStringA &str, CFile *pFile) const
{
if (!pFile) return;
pFile->Write(const_cast<CStringA&>(str).GetBuffer(), str.GetLength());
}

// These functions write to a separate file. CFile path to those separate files must be the same as export.

void CChunkRenderText::StoreNSFHeader(stNSFHeader Header) const
{
CString str;

str.Append(";\n; NSF Header\n;\n");
// TODO: make seperate stub file
//if (Header.SoundChip & SNDCHIP_VRC6) str.Append("USE_VRC6 = 1\n");
//if (Header.SoundChip & SNDCHIP_VRC7) str.Append("USE_VRC7 = 1\n");
//if (Header.SoundChip & SNDCHIP_FDS) str.Append("USE_FDS = 1\n");
//if (Header.SoundChip & SNDCHIP_MMC5) str.Append("USE_MMC5 = 1\n");
//if (Header.SoundChip & SNDCHIP_N163) str.Append("USE_N163 = 1\n");
//if (Header.SoundChip & SNDCHIP_S5B) str.Append("USE_S5B = 1\n");
//if (m_bBankSwitched) str.Append("USE_BANKSWITCH = 1\n");
//if (m_pDocument->GetVibratoStyle() == VIBRATO_OLD) str.Append("USE_OLDVIBRATO = 1\n");
//if (m_pDocument->GetLinearPitch()) str.Append("USE_LINEARPITCH = 1\n");

str.Append("\n.segment \"HEADER1\"\n");
str.AppendFormat(".byte $%02X, $%02X, $%02X, $%02X, $%02X\t; ID\n",
Header.Ident[0], Header.Ident[1], Header.Ident[2], Header.Ident[3], Header.Ident[4]);
str.Append(".byte $01\t\t\t\t\t\t; Version\n");
str.AppendFormat(".byte $%02X\t\t\t\t\t\t\t; Number of songs\n", Header.TotalSongs);
str.AppendFormat(".byte $%02X\t\t\t\t\t\t\t; Start song\n", Header.StartSong);
str.Append(".word LOAD\t\t\t\t\t\t; LOAD address\n");
str.Append(".word INIT\t\t\t\t\t\t; INIT address\n");
str.Append(".word PLAY\t\t\t\t\t\t; PLAY address\n\n");

str.Append(".segment \"HEADER2\"\n");
str.AppendFormat(".byte \"%s\"\t; Name, 32 bytes\n\n", Header.SongName);

str.Append(".segment \"HEADER3\"\n");
str.AppendFormat(".byte \"%s\"\t; Artist, 32 bytes\n\n", Header.ArtistName);

str.Append(".segment \"HEADER4\"\n");
str.AppendFormat(".byte \"%s\"\t; Copyright, 32 bytes\n\n", Header.Copyright);

str.Append(".segment \"HEADER5\"\n");
str.AppendFormat(".word $%04X\t\t\t\t\t\t; NTSC speed\n", Header.Speed_NTSC);
str.AppendFormat(".byte $%02X, $%02X, $%02X, $%02X, $%02X, $%02X, $%02X, $%02X\t; Bank values\n",
Header.BankValues[0], Header.BankValues[1], Header.BankValues[2], Header.BankValues[3],
Header.BankValues[4], Header.BankValues[5], Header.BankValues[6], Header.BankValues[7]);
str.AppendFormat(".word $%04X\t\t\t\t\t\t; PAL speed\n", Header.Speed_PAL);
str.AppendFormat(".byte $%02X\t\t\t\t\t\t\t; Region flags\n", Header.Flags);
str.Append(".byte EXPANSION_FLAG\t\t\t; Expansion audio flags\n");
str.AppendFormat(".byte $%02X\t\t\t\t\t\t; NSF2 flags\n", Header.NSF2Flags);
str.AppendFormat(".byte $%02X, $%02X, $%02X\t\t\t\t; NSF data length\n",
Header.NSFDataLength[0], Header.NSFDataLength[1], Header.NSFDataLength[2]);

WriteFileString(str, m_pFileNSFHeader);
}

void CChunkRenderText::StoreNSFConfig(unsigned int DPCMSegment, stNSFHeader Header, bool Bankswitched) const
{
CString str;
CString segmentAttr = (Header.SoundChip & SNDCHIP_FDS ? "rw" : "ro");

if (Bankswitched) {
// TODO: dynamically allocate memory chunks
}
else {
str.Append("MEMORY {\n");
str.Append(" ZP: start = $00, size = $100, type = rw, file = \"\";\n");
str.Append(" RAM: start = $200, size = $600, type = rw, file = \"\";\n");
str.Append(" HDR: start = $00, size = $80, type = ro, file = %O;\n");
str.Append(" PRG: start = $8000, size = $40000, type = " + segmentAttr + ", file = %O;\n");
str.Append("}\n\n");
str.Append("SEGMENTS {\n");
str.Append(" ZEROPAGE: load = ZP, type = zp;\n");
str.Append(" BSS: load = RAM, type = bss, define = yes;\n");
str.Append(" HEADER1: load = HDR, type = ro;\n");
str.Append(" HEADER2: load = HDR, type = ro, start = $0E, fillval = $0;\n");
str.Append(" HEADER3: load = HDR, type = ro, start = $2E, fillval = $0;\n");
str.Append(" HEADER4: load = HDR, type = ro, start = $4E, fillval = $0;\n");
str.Append(" HEADER5: load = HDR, type = ro, start = $6E;\n");
str.Append(" CODE: load = PRG, type = " + segmentAttr + ", start = $8000;\n");
str.AppendFormat((" DPCM: load = PRG, type = " + segmentAttr + ", start = $%04X;\n"), DPCMSegment);
str.Append("}\n");
}

WriteFileString(str, m_pFileNSFConfig);
}

void CChunkRenderText::StorePeriods(unsigned int *pNoteLUTNTSC, unsigned int* pNoteLUTPAL, unsigned int* pNoteLUTSaw, unsigned int* pNoteLUTFDS, unsigned int* pNoteLUTN163, unsigned int* pNoteLUTVRC7) const
{
CString str;

const auto StoreWordString = [&](unsigned int* Table) {
str.Append("\t.word\t");
for (int i = 0; i < NOTE_COUNT; ++i) {
unsigned int Val = Table[i] & 0xFFFF;
if (i < NOTE_COUNT - 1) {
if (i % NOTE_RANGE < NOTE_RANGE - 1)
str.AppendFormat("$%04X, ", Val);
else
str.AppendFormat("$%04X\n\t.word\t", Val);
}
else
str.AppendFormat("$%04X\n", Val);
}
};

// One possible optimization is to store the PAL table as the difference from the NTSC table

str.Append("; 2A03 NTSC\n");
str.Append(".if .defined(NTSC_PERIOD_TABLE)\n");
str.Append("ft_periods_ntsc: ;; Patched\n");
StoreWordString(pNoteLUTNTSC);

str.Append(".endif\n\n");
str.Append("; 2A03 PAL\n");
str.Append(".if .defined(PAL_PERIOD_TABLE)\n");
str.Append("ft_periods_pal: ;; Patched\n");
StoreWordString(pNoteLUTPAL);

str.Append(".endif\n\n");
str.Append("; VRC6 Sawtooth\n");
str.Append(".if .defined(USE_VRC6)\n");
str.Append("ft_periods_sawtooth: ;; Patched\n");
StoreWordString(pNoteLUTSaw);

str.Append(".endif\n\n");
str.Append("; FDS\n");
str.Append(".if .defined(USE_FDS)\n");
str.Append("ft_periods_fds: ;; Patched\n");
StoreWordString(pNoteLUTFDS);

str.Append(".endif\n\n");
str.Append("; N163\n");
str.Append(".if .defined(USE_N163)\n");
str.Append("ft_periods_n163: ;; Patched\n");
StoreWordString(pNoteLUTN163);

str.Append(".endif\n\n");
str.Append("; VRC7\n");
str.Append(".if .defined(USE_VRC7)\n");
str.Append("; Fnum table, multiplied by 4 for higher resolution\n");
str.Append(".define ft_vrc7_table ");

for (int i = 0; i <= NOTE_RANGE; ++i) { // // // include last item for linear pitch code optimization
CString str;
if (i == NOTE_RANGE)
str.AppendFormat("$%04X\n", pNoteLUTVRC7[0] << 3);
else
str.AppendFormat("$%04X, ", pNoteLUTVRC7[i] << 2);
str.Append(str);
}

str.Append("\n");
str.Append("ft_note_table_vrc7_l: ;; Patched\n");
str.Append("\t.lobytes ft_vrc7_table\n");
str.Append("ft_note_table_vrc7_h:\n");
str.Append("\t.hibytes ft_vrc7_table\n");
str.Append(".endif\n");

WriteFileString(str, m_pFilePeriods);
}

void CChunkRenderText::StoreVibrato(unsigned int *pLUTVibrato) const
{
CString str;

str.Append("; Vibrato table (256 bytes)\n"
"ft_vibrato_table: ;; Patched\n");
for (int i = 0; i < 16; i++) { // depth
str.Append("\t.byte ");
for (int j = 0; j < 16; j++) { // phase
str.AppendFormat("$%02X%s", pLUTVibrato[i * 16 + j], j < 15 ? ", " : "");
}
str.Append("\n");
}

WriteFileString(str, m_pFileVibrato);
}

void CChunkRenderText::SetExtraDataFiles(CFile* pFileNSFHeader, CFile* pFileNSFConfig, CFile* pFilePeriods, CFile* pFileVibrato)
{
m_pFileNSFHeader = pFileNSFHeader;
m_pFileNSFConfig = pFileNSFConfig;
m_pFilePeriods = pFilePeriods;
m_pFileVibrato = pFileVibrato;
}

void CChunkRenderText::StoreByteString(const char *pData, int Len, CStringA &str, int LineBreak) const
{
str.Append("\t.byte ");
Expand Down
11 changes: 11 additions & 0 deletions Source/ChunkRenderText.h
View file
Original file line number Diff line number Diff line change
Expand Up @@ -33,6 +33,8 @@ class CDSample; // // //

typedef void (CChunkRenderText::*renderFunc_t)(CChunk *pChunk, CFile *pFile);

struct stNSFHeader;

struct stChunkRenderFunc {
chunk_type_t type;
renderFunc_t function;
Expand All @@ -45,6 +47,11 @@ class CChunkRenderText
void StoreChunks(const std::vector<CChunk*> &Chunks);
void StoreSamples(const std::vector<const CDSample*> &Samples);
void WriteFileString(const CStringA& str, CFile* pFile) const;
void StoreNSFHeader(stNSFHeader Header) const;
void StoreNSFConfig(unsigned int DPCMSegment, stNSFHeader Header, bool Bankswitched = false) const;
void StorePeriods(unsigned int* pLUTNTSC, unsigned int* pLUTPAL, unsigned int* pLUTSaw, unsigned int* pLUTFDS, unsigned int* pLUTN163, unsigned int* pLUTVRC7) const;
void StoreVibrato(unsigned int* pLUTVibrato) const;
void SetExtraDataFiles(CFile* pFileNSFHeader, CFile* pFileNSFConfig, CFile* pFilePeriods, CFile* pFileVibrato);

// Labels
// // // moved from CCompiler
Expand Down Expand Up @@ -109,4 +116,8 @@ class CChunkRenderText
CStringArray m_wavesStrings;

CFile *m_pFile;
CFile *m_pFileNSFHeader;
CFile *m_pFileNSFConfig;
CFile *m_pFilePeriods;
CFile *m_pFileVibrato;
};
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