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Helper function for try_decompression functions

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init_decompression_variables()
This commit is contained in:
Christian Schneider 2016-01-26 12:54:24 +01:00
parent a21bf5dfdc
commit f5f2bbd8d4
1 changed files with 19 additions and 82 deletions
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101
precomp.cpp
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@ -203,10 +203,13 @@ void try_decompression_zlib(int windowbits);
void try_decompression_brute();
void try_decompression_swf(int windowbits, char swf_version);
void try_decompression_bzip2(int compression_level);
void try_decompression_base64(int gzip_header_length);
// helpers for try_decompression functions
void init_decompression_variables();
unsigned char base64_char_decode(unsigned char c);
void base64_reencode(FILE* file_in, FILE* file_out, int line_count, int max_in_count = 0x7FFFFFFF, int max_byte_count = 0x7FFFFFFF);
void try_decompression_base64(int gzip_header_length);
void packjpg_mp3_dll_msg();
bool recompress_gif(FILE* srcfile, FILE* dstfile, unsigned char block_size, GifCodeStruct* g, GifDiffStruct* gd);
@ -2766,7 +2769,7 @@ int identical_bytes_decomp = -1;
int real_identical_bytes = -1;
bool final_compression_found = false;
void try_decompression_pdf(int windowbits, int pdf_header_length, int img_width, int img_height, int img_bpc) {
void init_decompression_variables() {
identical_bytes = -1;
best_identical_bytes = -1;
best_compression = -1;
@ -2776,6 +2779,11 @@ void try_decompression_pdf(int windowbits, int pdf_header_length, int img_width,
identical_bytes_decomp = -1;
real_identical_bytes = -1;
final_compression_found = false;
}
void try_decompression_pdf(int windowbits, int pdf_header_length, int img_width, int img_height, int img_bpc) {
init_decompression_variables();
int bmp_header_type = 0; // 0 = none, 1 = 8-bit, 2 = 24-bit
// try to decompress at current position
@ -3049,14 +3057,7 @@ void try_decompression_pdf(int windowbits, int pdf_header_length, int img_width,
}
void try_decompression_zip(int zip_header_length) {
identical_bytes = -1;
best_identical_bytes = -1;
best_compression = -1;
best_mem_level = -1;
best_penalty_bytes_len = 0;
best_identical_bytes_decomp = -1;
identical_bytes_decomp = -1;
real_identical_bytes = -1;
init_decompression_variables();
final_compression_found = false;
int windowbits;
@ -6250,15 +6251,7 @@ long long compare_files_penalty(FILE* file1, FILE* file2, long long pos1, long l
}
void try_decompression_gzip(int gzip_header_length) {
identical_bytes = -1;
best_identical_bytes = -1;
best_compression = -1;
best_mem_level = -1;
best_penalty_bytes_len = 0;
best_identical_bytes_decomp = -1;
identical_bytes_decomp = -1;
real_identical_bytes = -1;
final_compression_found = false;
init_decompression_variables();
int windowbits;
@ -6413,15 +6406,7 @@ void try_decompression_gzip(int gzip_header_length) {
}
void try_decompression_png (int windowbits) {
identical_bytes = -1;
best_identical_bytes = -1;
best_compression = -1;
best_mem_level = -1;
best_penalty_bytes_len = 0;
best_identical_bytes_decomp = -1;
identical_bytes_decomp = -1;
real_identical_bytes = -1;
final_compression_found = false;
init_decompression_variables();
// try to decompress at current position
retval = try_to_decompress(fin, windowbits);
@ -6547,15 +6532,7 @@ void try_decompression_png (int windowbits) {
}
void try_decompression_png_multi(int windowbits) {
identical_bytes = -1;
best_identical_bytes = -1;
best_compression = -1;
best_mem_level = -1;
best_penalty_bytes_len = 0;
best_identical_bytes_decomp = -1;
identical_bytes_decomp = -1;
real_identical_bytes = -1;
final_compression_found = false;
init_decompression_variables();
// try to decompress at current position
retval = try_to_decompress(fpng, windowbits);
@ -7627,15 +7604,7 @@ void try_decompression_mp3 (long long mp3_length) {
}
void try_decompression_zlib(int windowbits) {
identical_bytes = -1;
best_identical_bytes = -1;
best_compression = -1;
best_mem_level = -1;
best_penalty_bytes_len = 0;
best_identical_bytes_decomp = -1;
identical_bytes_decomp = -1;
real_identical_bytes = -1;
final_compression_found = false;
init_decompression_variables();
// try to decompress at current position
retval = try_to_decompress(fin, windowbits);
@ -7795,15 +7764,7 @@ void try_decompression_zlib(int windowbits) {
}
void try_decompression_brute() {
identical_bytes = -1;
best_identical_bytes = -1;
best_compression = -1;
best_mem_level = -1;
best_penalty_bytes_len = 0;
best_identical_bytes_decomp = -1;
identical_bytes_decomp = -1;
real_identical_bytes = -1;
final_compression_found = false;
init_decompression_variables();
int windowbits;
@ -7960,15 +7921,7 @@ void try_decompression_brute() {
}
void try_decompression_swf(int windowbits, char swf_version) {
identical_bytes = -1;
best_identical_bytes = -1;
best_compression = -1;
best_mem_level = -1;
best_penalty_bytes_len = 0;
best_identical_bytes_decomp = -1;
identical_bytes_decomp = -1;
real_identical_bytes = -1;
final_compression_found = false;
init_decompression_variables();
// try to decompress at current position
retval = try_to_decompress(fin, windowbits);
@ -8122,15 +8075,7 @@ void try_decompression_swf(int windowbits, char swf_version) {
}
void try_decompression_bzip2(int compression_level) {
identical_bytes = -1;
best_identical_bytes = -1;
best_compression = -1;
best_mem_level = -1;
best_penalty_bytes_len = 0;
best_identical_bytes_decomp = -1;
identical_bytes_decomp = -1;
real_identical_bytes = -1;
final_compression_found = false;
init_decompression_variables();
// try to decompress at current position
retval = try_to_decompress_bzip2(fin, compression_level);
@ -8350,15 +8295,7 @@ void base64_reencode(FILE* file_in, FILE* file_out, int line_count, int max_in_c
}
void try_decompression_base64(int base64_header_length) {
identical_bytes = -1;
best_identical_bytes = -1;
best_compression = -1;
best_mem_level = -1;
best_penalty_bytes_len = 0;
best_identical_bytes_decomp = -1;
identical_bytes_decomp = -1;
real_identical_bytes = -1;
final_compression_found = false;
init_decompression_variables();
// try to decode at current position
remove(tempfile1);