1561     size_t pos = values->size;  in addLengthDistance()  local
1565         values->data[pos + 0] = length_code + FIRST_LENGTH_CODE_INDEX;  in addLengthDistance()
1566         values->data[pos + 1] = extra_length;  in addLengthDistance()
1567         values->data[pos + 2] = dist_code;  in addLengthDistance()
1568         values->data[pos + 3] = extra_distance;  in addLengthDistance()
1629 static unsigned getHash(const unsigned char * data, size_t size, size_t pos)  in getHash()  argument
1632     if(pos + 2 < size) {  in getHash()
1637         result ^= ((unsigned)data[pos + 0] << 0u);  in getHash()
1638         result ^= ((unsigned)data[pos + 1] << 4u);  in getHash()
1639         result ^= ((unsigned)data[pos + 2] << 8u);  in getHash()
1643         if(pos >= size) return 0;  in getHash()
1644         amount = size - pos;  in getHash()
1645         for(i = 0; i != amount; ++i) result ^= ((unsigned)data[pos + i] << (i * 8u));  in getHash()
1650 static unsigned countZeros(const unsigned char * data, size_t size, size_t pos)  in countZeros()  argument
1652     const unsigned char * start = data + pos;  in countZeros()
1686     size_t pos;  in encodeLZ77()  local
1710     for(pos = inpos; pos < insize; ++pos) {  in encodeLZ77()
1711         size_t wpos = pos & (windowsize - 1); /*position for in 'circular' hash buffers*/  in encodeLZ77()
1714         hashval = getHash(in, insize, pos);  in encodeLZ77()
1717             if(numzeros == 0) numzeros = countZeros(in, insize, pos);  in encodeLZ77()
1718             else if(pos + numzeros > insize || in[pos + numzeros - 1] != 0) --numzeros;  in encodeLZ77()
1732 …lastptr = &in[insize < pos + MAX_SUPPORTED_DEFLATE_LENGTH ? insize : pos + MAX_SUPPORTED_DEFLATE_L…  in encodeLZ77()
1744                 foreptr = &in[pos];  in encodeLZ77()
1745                 backptr = &in[pos - current_offset];  in encodeLZ77()
1759                 current_length = (unsigned)(foreptr - &in[pos]);  in encodeLZ77()
1792                 if(pos == 0) ERROR_BREAK(81);  in encodeLZ77()
1795                     if(!uivector_push_back(out, in[pos - 1])) ERROR_BREAK(83 /*alloc fail*/);  in encodeLZ77()
1802                     --pos;  in encodeLZ77()
1810             if(!uivector_push_back(out, in[pos])) ERROR_BREAK(83 /*alloc fail*/);  in encodeLZ77()
1815             if(!uivector_push_back(out, in[pos])) ERROR_BREAK(83 /*alloc fail*/);  in encodeLZ77()
1820                 ++pos;  in encodeLZ77()
1821                 wpos = pos & (windowsize - 1);  in encodeLZ77()
1822                 hashval = getHash(in, insize, pos);  in encodeLZ77()
1824                     if(numzeros == 0) numzeros = countZeros(in, insize, pos);  in encodeLZ77()
1825                     else if(pos + numzeros > insize || in[pos + numzeros - 1] != 0) --numzeros;  in encodeLZ77()
1850         size_t pos = out->size;  in deflateNoCompression()  local
1862         out->data[pos + 0] = firstbyte;  in deflateNoCompression()
1863         out->data[pos + 1] = (unsigned char)(LEN & 255);  in deflateNoCompression()
1864         out->data[pos + 2] = (unsigned char)(LEN >> 8u);  in deflateNoCompression()
1865         out->data[pos + 3] = (unsigned char)(NLEN & 255);  in deflateNoCompression()
1866         out->data[pos + 4] = (unsigned char)(NLEN >> 8u);  in deflateNoCompression()
1867         lodepng_memcpy(out->data + pos + 5, data + datapos, LEN);  in deflateNoCompression()
5104     unsigned pos = 0, i;  in readChunk_PLTE()  local
5114         color->palette[4 * i + 0] = data[pos++]; /*R*/  in readChunk_PLTE()
5115         color->palette[4 * i + 1] = data[pos++]; /*G*/  in readChunk_PLTE()
5116         color->palette[4 * i + 2] = data[pos++]; /*B*/  in readChunk_PLTE()
5519 unsigned lodepng_inspect_chunk(LodePNGState * state, size_t pos,  in lodepng_inspect_chunk()  argument
5522     const unsigned char * chunk = in + pos;  in lodepng_inspect_chunk()
5528     if(pos + 4 > insize) return 30;  in lodepng_inspect_chunk()
5532     if(chunkLength + 12 > insize - pos) return 30;  in lodepng_inspect_chunk()
5629         size_t pos = (size_t)(chunk - in);  in decodeGeneric()  local
5632         if(chunk < in || pos + 12 > insize) {  in decodeGeneric()
5645         if(pos + (size_t)chunkLength + 12 > insize || pos + (size_t)chunkLength + 12 < pos) {  in decodeGeneric()
5970     size_t pos = out->size;  in writeSignature()  local
5974     lodepng_memcpy(out->data + pos, signature, 8);  in writeSignature()
6146         size_t pos = 8;  in addChunk_iTXt()  local
6147         lodepng_memcpy(chunk + pos, keyword, keysize);  in addChunk_iTXt()
6148         pos += keysize;  in addChunk_iTXt()
6149         chunk[pos++] = 0; /*null termination char*/  in addChunk_iTXt()
6150         chunk[pos++] = (compress ? 1 : 0); /*compression flag*/  in addChunk_iTXt()
6151         chunk[pos++] = 0; /*compression method: 0*/  in addChunk_iTXt()
6152         lodepng_memcpy(chunk + pos, langtag, langsize);  in addChunk_iTXt()
6153         pos += langsize;  in addChunk_iTXt()
6154         chunk[pos++] = 0; /*null termination char*/  in addChunk_iTXt()
6155         lodepng_memcpy(chunk + pos, transkey, transsize);  in addChunk_iTXt()
6156         pos += transsize;  in addChunk_iTXt()
6157         chunk[pos++] = 0; /*null termination char*/  in addChunk_iTXt()
6159             lodepng_memcpy(chunk + pos, compressed, compressedsize);  in addChunk_iTXt()
6162             lodepng_memcpy(chunk + pos, textstring, textsize);  in addChunk_iTXt()