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Update ROM compression

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This commit is contained in:
Justin Scofield
2022-07-27 22:48:24 -04:00
parent c9e46d1ab8
commit 40d52f02c9
2 changed files with 92 additions and 85 deletions
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30
src/app/rom.h
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@@ -35,10 +35,10 @@ constexpr int kMaxLengthNormalHeader = 32;
constexpr int kMaxLengthCompression = 1024;
constexpr int kNintendoMode1 = 0;
constexpr int kNintendoMode2 = 1;
constexpr int kTile32Num = 4432;
constexpr uchar kGraphicsBitmap[8] = {0x80, 0x40, 0x20, 0x10,
0x08, 0x04, 0x02, 0x01};
static constexpr int kTile32Num = 4432;
using OWBlockset = std::vector<std::vector<ushort>>;
struct OWMapTiles {
OWBlockset light_world; // 64 maps
@@ -46,21 +46,13 @@ struct OWMapTiles {
OWBlockset special_world; // 32 maps
} typedef OWMapTiles;
typedef struct s_compression_piece compression_piece;
struct s_compression_piece {
typedef struct sCompressionPiece CompressionPiece;
struct sCompressionPiece {
char command;
unsigned int length;
int length;
char* argument;
unsigned int argument_length;
compression_piece* next;
};
struct CompressionPiece {
uchar command;
uint length;
uchar* argument;
uint argument_length;
int argument_length;
CompressionPiece* next;
};
class ROM {
@@ -69,12 +61,10 @@ class ROM {
absl::Status LoadFromPointer(uchar* data, size_t length);
absl::Status LoadAllGraphicsData();
// absl::Status SaveOverworld();
absl::StatusOr<Bytes> CompressGraphics(const uint pos, const uint length);
absl::StatusOr<Bytes> CompressOverworld(const uint pos, const uint length);
absl::StatusOr<Bytes> Compress(const uint start, const uint length,
char mode);
absl::StatusOr<Bytes> CompressGraphics(const int pos, const int length);
absl::StatusOr<Bytes> CompressOverworld(const int pos, const int length);
absl::StatusOr<Bytes> Compress(const int start, const int length,
int mode = 0);
absl::StatusOr<Bytes> DecompressGraphics(int pos, int size);
absl::StatusOr<Bytes> DecompressOverworld(int pos, int size);