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Refactor LC_LZ2 and expand GraphicsEditor

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Add CompressV2 and DecompressV2
Add PortablePalette to PaletteEditor
This commit is contained in:
scawful
2023-07-22 15:24:34 -04:00
parent 82dd9dde1b
commit 01802d1a73
9 changed files with 564 additions and 27 deletions
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54
src/app/gfx/compression.h
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@@ -34,9 +34,23 @@ constexpr int kExpandedLengthMod = 0x3FF;
constexpr int kNormalLengthMod = 0x1F;
constexpr int kCompressionStringMod = 7 << 5;
// Represents a command in the compression algorithm.
struct CompressionCommand {
// The command arguments for each possible command.
std::array<std::array<char, 2>, 5> arguments;
// The size of each possible command.
std::array<uint, 5> cmd_size;
// The size of the data processed by each possible command.
std::array<uint, 5> data_size;
};
using CommandArgumentArray = std::array<std::array<char, 2>, 5>;
using CommandSizeArray = std::array<uint, 5>;
using DataSizeArray = std::array<uint, 5>;
// Represents a piece of compressed data.
struct CompressionPiece {
char command;
int length;
@@ -54,6 +68,46 @@ void PrintCompressionPiece(const CompressionPiecePointer& piece);
void PrintCompressionChain(const CompressionPiecePointer& chain_head);
// Compression V2
void CheckByteRepeatV2(const uchar* data, uint& src_pos, const uint last_pos,
CompressionCommand& cmd);
void CheckWordRepeatV2(const uchar* data, uint& src_pos, const uint last_pos,
CompressionCommand& cmd);
void CheckIncByteV2(const uchar* data, uint& src_pos, const uint last_pos,
CompressionCommand& cmd);
void CheckIntraCopyV2(const uchar* data, uint& src_pos, const uint last_pos,
uint start, CompressionCommand& cmd);
void ValidateForByteGainV2(const CompressionCommand& cmd, uint& max_win,
uint& cmd_with_max);
void CompressionCommandAlternativeV2(const uchar* data,
const CompressionCommand& cmd,
CompressionPiecePointer& compressed_chain,
uint& src_pos, uint& comp_accumulator,
uint& cmd_with_max, uint& max_win);
absl::StatusOr<Bytes> CompressV2(const uchar* data, const int start,
const int length, int mode = 1,
bool check = false);
absl::StatusOr<Bytes> CompressGraphics(const int pos, const int length);
absl::StatusOr<Bytes> CompressOverworld(const int pos, const int length);
std::string SetBuffer(const uchar* data, int src_pos, int comp_accumulator);
void memfill(const uchar* data, Bytes& buffer, int buffer_pos, int offset,
int length);
absl::StatusOr<Bytes> DecompressV2(const uchar* data, int offset,
int size = 0x800, int mode = 1);
absl::StatusOr<Bytes> DecompressGraphics(const uchar* data, int pos, int size);
absl::StatusOr<Bytes> DecompressOverworld(const uchar* data, int pos, int size);
// Compression V1
void CheckByteRepeat(const uchar* rom_data, DataSizeArray& data_size_taken,
CommandArgumentArray& cmd_args, uint& src_data_pos,
const uint last_pos);