diff options
Diffstat (limited to 'core/src/fxcodec/codec/fx_codec.cpp')
-rw-r--r-- | core/src/fxcodec/codec/fx_codec.cpp | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/core/src/fxcodec/codec/fx_codec.cpp b/core/src/fxcodec/codec/fx_codec.cpp index d7c7c4eeb4..6998114f83 100644 --- a/core/src/fxcodec/codec/fx_codec.cpp +++ b/core/src/fxcodec/codec/fx_codec.cpp @@ -142,6 +142,121 @@ void CCodec_ScanlineDecoder::DownScale(int dest_width, int dest_height) { m_pDataCache = nonstd::move(cache); } +FX_BOOL CCodec_BasicModule::RunLengthEncode(const uint8_t* src_buf, + FX_DWORD src_size, + uint8_t*& dest_buf, + FX_DWORD& dest_size) { + return FALSE; +} + +#define EXPONENT_DETECT(ptr) \ + for (;; ptr++) { \ + if (!std::isdigit(*ptr)) { \ + if (endptr) \ + *endptr = (char*)ptr; \ + break; \ + } else { \ + exp_ret *= 10; \ + exp_ret += FXSYS_toDecimalDigit(*ptr); \ + continue; \ + } \ + } + +extern "C" double FXstrtod(const char* nptr, char** endptr) { + double ret = 0.0; + const char* ptr = nptr; + const char* exp_ptr = NULL; + int e_number = 0, e_signal = 0, e_point = 0, is_negative = 0; + int exp_ret = 0, exp_sig = 1, fra_ret = 0, fra_count = 0, fra_base = 1; + if (!nptr) { + return 0.0; + } + for (;; ptr++) { + if (!e_number && !e_point && (*ptr == '\t' || *ptr == ' ')) + continue; + + if (std::isdigit(*ptr)) { + if (!e_number) + e_number = 1; + + if (!e_point) { + ret *= 10; + ret += FXSYS_toDecimalDigit(*ptr); + } else { + fra_count++; + fra_ret *= 10; + fra_ret += FXSYS_toDecimalDigit(*ptr); + } + continue; + } + if (!e_point && *ptr == '.') { + e_point = 1; + continue; + } + if (!e_number && !e_point && !e_signal) { + switch (*ptr) { + case '-': + is_negative = 1; + case '+': + e_signal = 1; + continue; + } + } + if (e_number && (*ptr == 'e' || *ptr == 'E')) { + exp_ptr = ptr++; + if (*ptr == '+' || *ptr == '-') { + exp_sig = (*ptr++ == '+') ? 1 : -1; + if (!std::isdigit(*ptr)) { + if (endptr) { + *endptr = (char*)exp_ptr; + } + break; + } + EXPONENT_DETECT(ptr); + } else if (std::isdigit(*ptr)) { + EXPONENT_DETECT(ptr); + } else { + if (endptr) { + *endptr = (char*)exp_ptr; + } + break; + } + break; + } + if (ptr != nptr && !e_number) { + if (endptr) { + *endptr = (char*)nptr; + } + break; + } + if (endptr) { + *endptr = (char*)ptr; + } + break; + } + while (fra_count--) { + fra_base *= 10; + } + ret += (double)fra_ret / (double)fra_base; + if (exp_sig == 1) { + while (exp_ret--) { + ret *= 10.0; + } + } else { + while (exp_ret--) { + ret /= 10.0; + } + } + return is_negative ? -ret : ret; +} +#undef EXPONENT_DETECT + +FX_BOOL CCodec_BasicModule::A85Encode(const uint8_t* src_buf, + FX_DWORD src_size, + uint8_t*& dest_buf, + FX_DWORD& dest_size) { + return FALSE; +} class CCodec_RLScanlineDecoder : public CCodec_ScanlineDecoder { public: CCodec_RLScanlineDecoder(); |