compression.h File Reference

#include <memory>
#include <string>
#include "absl/status/status.h"
#include "absl/status/statusor.h"
#include "app/core/constants.h"

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Classes
struct	yaze::app::gfx::lc_lz2::CompressionCommand
struct	yaze::app::gfx::lc_lz2::CompressionPiece
struct	yaze::app::gfx::lc_lz2::CompressionContext

Namespaces
namespace	yaze
namespace	yaze::app
	Main namespace for the ImGui application.
namespace	yaze::app::gfx
	Contains classes for handling graphical data.
namespace	yaze::app::gfx::lc_lz2
	Contains the LC_LZ2 compression algorithm.

Macros
#define	BUILD_HEADER(command, length)

Typedefs
using	yaze::app::gfx::lc_lz2::CommandArgumentArray = std::array<std::array<char, 2>, 5>
using	yaze::app::gfx::lc_lz2::CommandSizeArray = std::array<uint, 5>
using	yaze::app::gfx::lc_lz2::DataSizeArray = std::array<uint, 5>
using	yaze::app::gfx::lc_lz2::CompressionPiece = struct CompressionPiece
using	yaze::app::gfx::lc_lz2::CompressionPiecePointer = std::shared_ptr<CompressionPiece>

Functions
void	yaze::app::gfx::lc_lz2::PrintCompressionPiece (const CompressionPiecePointer &piece)
void	yaze::app::gfx::lc_lz2::PrintCompressionChain (const CompressionPiecePointer &chain_head)
void	yaze::app::gfx::lc_lz2::CheckByteRepeat (const uchar *rom_data, DataSizeArray &data_size_taken, CommandArgumentArray &cmd_args, uint &src_data_pos, const uint last_pos)
void	yaze::app::gfx::lc_lz2::CheckWordRepeat (const uchar *rom_data, DataSizeArray &data_size_taken, CommandArgumentArray &cmd_args, uint &src_data_pos, const uint last_pos)
void	yaze::app::gfx::lc_lz2::CheckIncByte (const uchar *rom_data, DataSizeArray &data_size_taken, CommandArgumentArray &cmd_args, uint &src_data_pos, const uint last_pos)
void	yaze::app::gfx::lc_lz2::CheckIntraCopy (const uchar *rom_data, DataSizeArray &data_size_taken, CommandArgumentArray &cmd_args, uint &src_data_pos, const uint last_pos, uint start)
void	yaze::app::gfx::lc_lz2::ValidateForByteGain (const DataSizeArray &data_size_taken, const CommandSizeArray &cmd_size, uint &max_win, uint &cmd_with_max)
void	yaze::app::gfx::lc_lz2::CompressionCommandAlternative (const uchar *rom_data, CompressionPiecePointer &compressed_chain, const CommandSizeArray &cmd_size, const CommandArgumentArray &cmd_args, uint &src_data_pos, uint &comp_accumulator, uint &cmd_with_max, uint &max_win)
void	yaze::app::gfx::lc_lz2::CheckByteRepeatV2 (const uchar *data, uint &src_pos, const uint last_pos, CompressionCommand &cmd)
void	yaze::app::gfx::lc_lz2::CheckWordRepeatV2 (const uchar *data, uint &src_pos, const uint last_pos, CompressionCommand &cmd)
void	yaze::app::gfx::lc_lz2::CheckIncByteV2 (const uchar *rom_data, uint &src_data_pos, const uint last_pos, CompressionCommand &cmd)
void	yaze::app::gfx::lc_lz2::CheckIntraCopyV2 (const uchar *rom_data, uint &src_data_pos, const uint last_pos, uint start, CompressionCommand &cmd)
void	yaze::app::gfx::lc_lz2::ValidateForByteGainV2 (const CompressionCommand &cmd, uint &max_win, uint &cmd_with_max)
void	yaze::app::gfx::lc_lz2::CompressionCommandAlternativeV2 (const uchar *rom_data, const CompressionCommand &cmd, CompressionPiecePointer &compressed_chain, uint &src_data_pos, uint &comp_accumulator, uint &cmd_with_max, uint &max_win)
absl::StatusOr< std::vector< uint8_t > >	yaze::app::gfx::lc_lz2::CompressV2 (const uchar *data, const int start, const int length, int mode=1, bool check=false)
	Compresses a buffer of data using the LC_LZ2 algorithm.
absl::StatusOr< std::vector< uint8_t > >	yaze::app::gfx::lc_lz2::CompressGraphics (const uchar *data, const int pos, const int length)
absl::StatusOr< std::vector< uint8_t > >	yaze::app::gfx::lc_lz2::CompressOverworld (const uchar *data, const int pos, const int length)
absl::StatusOr< std::vector< uint8_t > >	yaze::app::gfx::lc_lz2::CompressOverworld (const std::vector< uint8_t > data, const int pos, const int length)
absl::StatusOr< CompressionPiecePointer >	yaze::app::gfx::lc_lz2::SplitCompressionPiece (CompressionPiecePointer &piece, int mode)
std::vector< uint8_t >	yaze::app::gfx::lc_lz2::CreateCompressionString (CompressionPiecePointer &start, int mode)
absl::Status	yaze::app::gfx::lc_lz2::ValidateCompressionResult (CompressionPiecePointer &chain_head, int mode, int start, int src_data_pos)
CompressionPiecePointer	yaze::app::gfx::lc_lz2::MergeCopy (CompressionPiecePointer &start)
void	yaze::app::gfx::lc_lz2::CheckByteRepeatV3 (CompressionContext &context)
void	yaze::app::gfx::lc_lz2::CheckWordRepeatV3 (CompressionContext &context)
void	yaze::app::gfx::lc_lz2::CheckIncByteV3 (CompressionContext &context)
void	yaze::app::gfx::lc_lz2::CheckIntraCopyV3 (CompressionContext &context)
void	yaze::app::gfx::lc_lz2::InitializeCompression (CompressionContext &context)
void	yaze::app::gfx::lc_lz2::CheckAvailableCompressionCommands (CompressionContext &context)
void	yaze::app::gfx::lc_lz2::DetermineBestCompression (CompressionContext &context)
void	yaze::app::gfx::lc_lz2::HandleDirectCopy (CompressionContext &context)
void	yaze::app::gfx::lc_lz2::AddCompressionToChain (CompressionContext &context)
absl::Status	yaze::app::gfx::lc_lz2::ValidateCompressionResultV3 (const CompressionContext &context)
absl::StatusOr< CompressionPiece >	yaze::app::gfx::lc_lz2::SplitCompressionPieceV3 (CompressionPiece &piece, int mode)
void	yaze::app::gfx::lc_lz2::FinalizeCompression (CompressionContext &context)
absl::StatusOr< std::vector< uint8_t > >	yaze::app::gfx::lc_lz2::CompressV3 (const std::vector< uint8_t > &data, const int start, const int length, int mode=1, bool check=false)
	Compresses a buffer of data using the LC_LZ2 algorithm.
uint8_t *	yaze::app::gfx::lc_lz2::Compress (uint8_t const *const src, int const oldsize, int *const size, int const flag)
uint8_t *	yaze::app::gfx::lc_lz2::Uncompress (uint8_t const *src, int *const size, int const p_big_endian)
std::string	yaze::app::gfx::lc_lz2::SetBuffer (const std::vector< uint8_t > &data, int src_pos, int comp_accumulator)
std::string	yaze::app::gfx::lc_lz2::SetBuffer (const uchar *data, int src_pos, int comp_accumulator)
void	yaze::app::gfx::lc_lz2::memfill (const uchar *data, std::vector< uint8_t > &buffer, int buffer_pos, int offset, int length)
absl::StatusOr< std::vector< uint8_t > >	yaze::app::gfx::lc_lz2::DecompressV2 (const uchar *data, int offset, int size=0x800, int mode=1)
	Decompresses a buffer of data using the LC_LZ2 algorithm.
absl::StatusOr< std::vector< uint8_t > >	yaze::app::gfx::lc_lz2::DecompressGraphics (const uchar *data, int pos, int size)
absl::StatusOr< std::vector< uint8_t > >	yaze::app::gfx::lc_lz2::DecompressOverworld (const uchar *data, int pos, int size)
absl::StatusOr< std::vector< uint8_t > >	yaze::app::gfx::lc_lz2::DecompressOverworld (const std::vector< uint8_t > data, int pos, int size)

Variables
const int	yaze::app::gfx::lc_lz2::D_NINTENDO_C_MODE1 = 0
const int	yaze::app::gfx::lc_lz2::D_NINTENDO_C_MODE2 = 1
const int	yaze::app::gfx::lc_lz2::D_CMD_COPY = 0
const int	yaze::app::gfx::lc_lz2::D_CMD_BYTE_REPEAT = 1
const int	yaze::app::gfx::lc_lz2::D_CMD_WORD_REPEAT = 2
const int	yaze::app::gfx::lc_lz2::D_CMD_BYTE_INC = 3
const int	yaze::app::gfx::lc_lz2::D_CMD_COPY_EXISTING = 4
const int	yaze::app::gfx::lc_lz2::D_MAX_NORMAL_LENGTH = 32
const int	yaze::app::gfx::lc_lz2::D_MAX_LENGTH = 1024
const int	yaze::app::gfx::lc_lz2::INITIAL_ALLOC_SIZE = 1024
constexpr int	yaze::app::gfx::lc_lz2::kCommandDirectCopy = 0
constexpr int	yaze::app::gfx::lc_lz2::kCommandByteFill = 1
constexpr int	yaze::app::gfx::lc_lz2::kCommandWordFill = 2
constexpr int	yaze::app::gfx::lc_lz2::kCommandIncreasingFill = 3
constexpr int	yaze::app::gfx::lc_lz2::kCommandRepeatingBytes = 4
constexpr int	yaze::app::gfx::lc_lz2::kCommandLongLength = 7
constexpr int	yaze::app::gfx::lc_lz2::kMaxLengthNormalHeader = 32
constexpr int	yaze::app::gfx::lc_lz2::kMaxLengthCompression = 1024
constexpr int	yaze::app::gfx::lc_lz2::kNintendoMode1 = 0
constexpr int	yaze::app::gfx::lc_lz2::kNintendoMode2 = 1
constexpr int	yaze::app::gfx::lc_lz2::kSnesByteMax = 0xFF
constexpr int	yaze::app::gfx::lc_lz2::kCommandMod = 0x07
constexpr int	yaze::app::gfx::lc_lz2::kExpandedMod = 0xE0
constexpr int	yaze::app::gfx::lc_lz2::kExpandedLengthMod = 0x3FF
constexpr int	yaze::app::gfx::lc_lz2::kNormalLengthMod = 0x1F
constexpr int	yaze::app::gfx::lc_lz2::kCompressionStringMod = 7 << 5

Macro Definition Documentation

BUILD_HEADER

#define BUILD_HEADER	(		command,
			length )

Value:

(command << 5) + (length - 1)

Definition at line 11 of file compression.h.

Referenced by yaze::app::gfx::lc_lz2::AddCompressionToChain(), yaze::app::gfx::lc_lz2::CreateCompressionString(), yaze::app::gfx::lc_lz2::FinalizeCompression(), yaze::app::gfx::lc_lz2::HandleDirectCopy(), yaze::test::gfx::TEST(), yaze::test::gfx::TEST(), yaze::test::gfx::TEST(), yaze::test::gfx::TEST(), yaze::test::gfx::TEST(), yaze::test::gfx::TEST(), and yaze::test::gfx::TEST().