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Added dkr_encryptor & /cheats directory within /assets/

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This commit is contained in:
David Benepe
2020-06-15 09:30:56 -05:00
parent 62e4697f20
commit 6f6791a99f
10 changed files with 167 additions and 6 deletions
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tools/dkr_extractor.cpp
+52
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@@ -114,6 +114,51 @@ void extract_compressed(std::vector<uint8_t>& data, int startOffset, int endOffs
extract_binary(data, startOffset, endOffset, name, ".cbin", subfolder, outFolder);
}
// Only used for the magic codes.
void decrypt_data(std::vector<uint8_t>& data) {
int numWords = data.size() / 4;
int a, b, c, d, sp0, sp1, sp2, sp3;
for(int i = 0; i < numWords; i++) {
a = (data[(i * 4) + 3] & 0xC0) >> 6;
b = (data[(i * 4) + 0] & 0xC0);
c = (data[(i * 4) + 1] & 0xC0) >> 2;
d = (data[(i * 4) + 2] & 0xC0) >> 4;
sp0 = a | b | c | d;
a = (data[(i * 4) + 3] & 0x30) >> 4;
b = (data[(i * 4) + 0] & 0x30) << 2;
c = (data[(i * 4) + 1] & 0x30);
d = (data[(i * 4) + 2] & 0x30) >> 2;
sp1 = a | b | c | d;
a = (data[(i * 4) + 3] & 0x0C) >> 2;
b = (data[(i * 4) + 0] & 0x0C) << 4;
c = (data[(i * 4) + 1] & 0x0C) << 2;
d = (data[(i * 4) + 2] & 0x0C);
sp2 = a | b | c | d;
a = (data[(i * 4) + 3] & 0x03);
b = (data[(i * 4) + 0] ) << 6;
c = (data[(i * 4) + 1] & 0x03) << 4;
d = (data[(i * 4) + 2] & 0x03) << 2;
sp3 = a | b | c | d;
a = (sp0 & 0xAA) >> 1;
b = (sp0 & 0x55) << 1;
data[(i * 4) + 0] = a | b;
a = (sp1 & 0xAA) >> 1;
b = (sp1 & 0x55) << 1;
data[(i * 4) + 1] = a | b;
a = (sp2 & 0xAA) >> 1;
b = (sp2 & 0x55) << 1;
data[(i * 4) + 2] = a | b;
a = (sp3 & 0xAA) >> 1;
b = (sp3 & 0x55) << 1;
data[(i * 4) + 3] = a | b;
}
}
void extract_encrypted(std::vector<uint8_t>& data, int startOffset, int endOffset, std::string& name, std::string& subfolder, std::string& outFolder) {
decrypt_data(data);
extract_binary(data, startOffset, endOffset, name, ".ebin", subfolder, outFolder);
}
int get_texture_size(int width, int height, int textureFormat) {
switch(textureFormat) {
case TEX_FORMAT_RGBA32:
@@ -379,6 +424,13 @@ void extract_range(std::string subfolder, ConfigRange& range, ROM& rom) {
numberOfFilesExtracted++;
break;
}
case ConfigRangeType::ENCRYPTED:
{
std::vector<uint8_t> data = rom.get_bytes_from_range(startOffset, range.get_size());
extract_encrypted(data, startOffset, endOffset, name, subfolder, outFolder);
numberOfFilesExtracted++;
break;
}
case ConfigRangeType::TEXTURE:
{
std::string flip_verticallyString = range.get_property(3);