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-rw-r--r--src/zlib.h95
1 files changed, 50 insertions, 45 deletions
diff --git a/src/zlib.h b/src/zlib.h
index d9d6b44..fc6a1c3 100644
--- a/src/zlib.h
+++ b/src/zlib.h
@@ -3,50 +3,55 @@
#include <cstdint>
#include <string>
-struct HuffmanTree
+namespace TehImage
{
- uint16_t val = 0xFFFF;
- HuffmanTree* left = nullptr; // 0
- HuffmanTree* right = nullptr; // 1
- HuffmanTree() = default;
- ~HuffmanTree();
- void free();
-};
-
-struct StreamData
-{
- uint8_t* data;
- unsigned long length;
- unsigned long pos;
-};
-
-class ZLibInflator
-{
-private:
- HuffmanTree tree;
- HuffmanTree distTree;
- bool staticTree = false;
- bool haveTree = false;
-public:
- ZLibInflator() = default;
- ~ZLibInflator() = default;
-
- static bool nextBit(StreamData* stream);
- static uint16_t nextBits(StreamData* stream, int bits); // Max 16 bits
-
- void calculateCodes(uint8_t* lengths, uint16_t* codesOut, int codeCount);
-
- void buildHuffmanTree(uint8_t* lengths, uint16_t* codes, int codeCount);
- void buildHuffmanTree(uint8_t* lengths, uint16_t* codes, int codeCount, HuffmanTree* treeOut);
-
- void buildStaticHuffmanTree();
- void buildStaticHuffmanTree(HuffmanTree* treeOut, HuffmanTree* distTreeOut);
-
- void buildDynamicHuffmanTree(StreamData* stream);
- void buildDynamicHuffmanTree(StreamData* stream, HuffmanTree* treeOut, HuffmanTree* distTreeOut);
-
- uint16_t getNextCode(StreamData* stream);
- uint16_t getNextCode(StreamData* stream, HuffmanTree* tree);
- int decodeData(uint8_t* data, unsigned long length, uint8_t* out, unsigned long outLength);
-};
+ struct HuffmanTree
+ {
+ uint16_t val = 0xFFFF;
+ HuffmanTree* left = nullptr; // 0
+ HuffmanTree* right = nullptr; // 1
+ HuffmanTree() = default;
+ ~HuffmanTree();
+ void free();
+ };
+
+ struct StreamData
+ {
+ uint8_t* data;
+ unsigned long length;
+ unsigned long pos;
+ };
+
+ class ZLibInflator
+ {
+ private:
+ HuffmanTree tree;
+ HuffmanTree distTree;
+ bool staticTree = false;
+ bool haveTree = false;
+ public:
+ ZLibInflator() = default;
+ ~ZLibInflator() = default;
+
+ static bool nextBit(StreamData* stream);
+ static uint16_t nextBits(StreamData* stream, int bits); // Max 16 bits
+
+ void calculateCodes(uint8_t* lengths, uint16_t* codesOut, int codeCount);
+
+ void buildHuffmanTree(uint8_t* lengths, uint16_t* codes, int codeCount);
+ void buildHuffmanTree(uint8_t* lengths, uint16_t* codes, int codeCount, HuffmanTree* treeOut);
+
+ void buildStaticHuffmanTree();
+ void buildStaticHuffmanTree(HuffmanTree* treeOut, HuffmanTree* distTreeOut);
+
+ void buildDynamicHuffmanTree(StreamData* stream);
+ void buildDynamicHuffmanTree(StreamData* stream, HuffmanTree* treeOut, HuffmanTree* distTreeOut);
+
+ uint16_t getNextCode(StreamData* stream);
+ uint16_t getNextCode(StreamData* stream, HuffmanTree* tree);
+
+ int decodeData(uint8_t* data, unsigned long length, uint8_t* out, unsigned long outLength);
+ };
+
+}