Experimental PlayStation Vita emulator
This report presents the forensic synthetic code analysis of Vita3K/Vita3K, a C++ project with 5,562 GitHub stars. SynthScan v2.0 examined 243,158 lines of code across 967 source files, recording 1092 pattern matches distributed across 8 syntactic categories. The overall adjusted score of 4.3 places this repository in the Likely human-written band.
The scanner applied 160+ deterministic lexical heuristics, multi-line block detectors, abstract syntax tree depth profilers, and a cross-file Jaccard similarity matrix to construct a statistically normalised synthetic code estimate. All matches are individually weighted by severity coefficient and contextual multiplier before summation, and the resulting headline score is temporally discounted to account for the repository's development history relative to the commercial emergence of large language model coding tooling (November 2022 onward).
Longitudinal tracking requires multiple scan runs. Once this repository is re-scanned after new commits land, this chart will visualise how the synthetic code signal evolves over time — enabling you to detect whether AI authorship is growing, stabilising, or being actively corrected by human engineers.
Classifies detected patterns by their diagnostic confidence and structural impact. CRITICAL patterns (coefficient 10) represent definitive synthetic signatures — hallucinated imports, explicit LLM attribution metadata — virtually never produced by human authors. HIGH (5) indicates strong structural tells such as cross-file repetition or cross-linguistic idioms. MEDIUM (2) covers recognisable conversational padding and AI-specific vocabulary. LOW (1) captures subtle indicators like tautological comments and generic boilerplate that require density to carry independent signal.
This horizontal bar chart decomposes the repository's raw synthetic code score by top-level directory, allowing you to pinpoint precisely which modules or components carry the highest AI authorship density. Directories with disproportionately high scores relative to their size warrant targeted manual review: concentrated AI signatures often trace back to mass-generated configuration layers, auto-ported test suites, LLM-scaffolded boilerplate classes, or entire subsystems authored under heavy copilot assistance. Use this view to prioritise your human code-review effort.
The scanner identified 1092 distinct pattern matches across 8 syntactic categories. Each entry below represents a discrete location in the source code where the engine recorded a statistically significant AI authorship indicator. Expand any category row to inspect the individual file paths, line numbers, code snippets, and the lexical context (CODE, COMMENT, or STRING) in which each match was detected.
Reading the findings table: The Severity column indicates the diagnostic confidence level (CRITICAL / HIGH / MEDIUM / LOW). The Context column identifies whether the match occurred inside executable code, an inline comment, or a string literal — comment-context matches receive a ×1.5 weight because LLMs systematically over-annotate. The ⚡ bolt icon marks clustered matches: three or more patterns within a 10-line window, each receiving an additional ×1.5 density multiplier as dense clusters constitute far stronger evidence of synthetic authorship than isolated hits.
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | tools/native-tool/src/shaders.h | 1 | // Vita3K emulator project | COMMENT |
| LOW | tools/native-tool/src/main.cpp | 1 | // Vita3K emulator project | COMMENT |
| LOW | tools/gen-modules/gen-modules.cpp | 1 | // Vita3K emulator project | COMMENT |
| LOW | tools/usse-decoder-gen/grammar.yaml | 1501 | # description: Emit Output | COMMENT |
| LOW | tools/usse-decoder-gen/grammar.yaml | 1521 | # - src1_bank_ext: | COMMENT |
| LOW | tools/usse-decoder-gen/grammar.yaml | 1541 | # offset: 35 | COMMENT |
| LOW | external/CMakeLists.txt | 441 | # Disable Tracy crash handler. Don't stop tracing on first AV. | COMMENT |
| LOW | external/CppCommon/source/environment.cpp | 21 | #include <regex> | COMMENT |
| LOW | external/CppCommon/source/cpu.cpp | 1 | /*! | COMMENT |
| LOW | external/miniz/miniz.c | 3061 | #endif | COMMENT |
| LOW | external/miniz/miniz.c | 3121 | #else | COMMENT |
| LOW | external/miniz/miniz.c | 3141 | #define MZ_FILE_STAT_STRUCT _stat | COMMENT |
| LOW | external/miniz/miniz.c | 3161 | #define MZ_FILE_STAT_STRUCT stat | COMMENT |
| LOW | external/miniz/miniz.c | 3181 | #define MZ_DELETE_FILE remove | COMMENT |
| LOW | external/miniz/miniz.c | 3201 | #include <utime.h> | COMMENT |
| LOW | external/miniz/miniz.c | 3221 | #define MZ_FCLOSE fclose | COMMENT |
| LOW | external/miniz/miniz.h | 161 | callbacks to the zlib and archive API's, and a few stand-alone helper API's which don't provide custom user | COMMENT |
| LOW | external/miniz/miniz.h | 181 | #include <time.h> | COMMENT |
| LOW | external/miniz/miniz.h | 201 | COMMENT | |
| LOW | external/miniz/miniz.h | 221 | #if !defined(MINIZ_USE_UNALIGNED_LOADS_AND_STORES) | COMMENT |
| LOW | external/miniz/miniz.h | 461 | typedef char charf; | COMMENT |
| LOW | external/miniz/miniz.h | 481 | #define Z_BUF_ERROR MZ_BUF_ERROR | COMMENT |
| LOW | external/miniz/miniz.h | 601 | #define ZLIB_VER_MINOR MZ_VER_MINOR | COMMENT |
| LOW | external/miniz/miniz.h | 641 | #ifdef _MSC_VER | COMMENT |
| LOW | external/miniz/miniz.h | 661 | #else | COMMENT |
| LOW | external/miniz/miniz.h | 681 | #define MZ_CLEAR_PTR(obj) memset((obj), 0, sizeof(*obj)) | COMMENT |
| LOW | external/GPUOpen/ffx_fsr1.h | 1 | //_____________________________________________________________/\_______________________________________________________ | COMMENT |
| LOW | external/GPUOpen/ffx_fsr1.h | 21 | // The above copyright notice and this permission notice shall be included in | COMMENT |
| LOW | external/GPUOpen/ffx_fsr1.h | 41 | // [RCAS] Robust Contrast Adaptive Sharpening .... A non-scaling variation on CAS. | COMMENT |
| LOW | external/GPUOpen/ffx_fsr1.h | 61 | //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// | COMMENT |
| LOW | external/GPUOpen/ffx_fsr1.h | 81 | //---------------------------------------------------------------------------------------------------------------------- | COMMENT |
| LOW | external/GPUOpen/ffx_fsr1.h | 101 | // #include "ffx_a.h" | COMMENT |
| LOW | external/GPUOpen/ffx_fsr1.h | 121 | // #define A_HLSL 1 | COMMENT |
| LOW | external/GPUOpen/ffx_fsr1.h | 141 | // To use FsrEasuCon() on the CPU, define A_CPU before including ffx_a and ffx_fsr1. | COMMENT |
| LOW | external/GPUOpen/ffx_fsr1.h | 181 | // | | | | COMMENT |
| LOW | external/GPUOpen/ffx_fsr1.h | 321 | AU4 con3){ | COMMENT |
| LOW | external/GPUOpen/ffx_fsr1.h | 401 | // Anisotropic length after rotation, | COMMENT |
| LOW | external/GPUOpen/ffx_fsr1.h | 601 | // | COMMENT |
| LOW | external/GPUOpen/ffx_fsr1.h | 621 | // Then chooses the 'w' which results in no clipping, limits 'w', and multiplies by the 'sharp' amount. | COMMENT |
| LOW | external/GPUOpen/ffx_fsr1.h | 641 | // Including a GPU example here, the 'con' value would be stored out to a constant buffer. | COMMENT |
| LOW | external/GPUOpen/ffx_fsr1.h | 661 | // Call to setup required constant values (works on CPU or GPU). | COMMENT |
| LOW | external/GPUOpen/ffx_fsr1.h | 761 | #ifdef FSR_RCAS_DENOISE | COMMENT |
| LOW | external/GPUOpen/ffx_fsr1.h | 861 | #endif | COMMENT |
| LOW | external/GPUOpen/ffx_fsr1.h | 981 | AH2 rcpL=APrxMedRcpH2(AH2_(4.0)*lobe+AH2_(1.0)); | COMMENT |
| LOW | external/GPUOpen/ffx_fsr1.h | 1001 | // Grain application should be done in a linear colorspace. | COMMENT |
| LOW | external/GPUOpen/ffx_fsr1.h | 1021 | // Packed half precision version (faster). | COMMENT |
| LOW | external/GPUOpen/ffx_fsr1.h | 1041 | //====================================================================================================================== | COMMENT |
| LOW | external/GPUOpen/ffx_fsr1.h | 1061 | //_____________________________________________________________/\_______________________________________________________ | COMMENT |
| LOW | external/GPUOpen/ffx_fsr1.h | 1081 | //====================================================================================================================== | COMMENT |
| LOW | external/GPUOpen/ffx_a.h | 1 | //====================================================================================================================== | COMMENT |
| LOW | external/GPUOpen/ffx_a.h | 21 | // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | COMMENT |
| LOW | external/GPUOpen/ffx_a.h | 41 | //---------------------------------------------------------------------------------------------------------------------- | COMMENT |
| LOW | external/GPUOpen/ffx_a.h | 61 | // A_WAVE .... Support wave-wide operations. | COMMENT |
| LOW | external/GPUOpen/ffx_a.h | 81 | // - Make sure 'ALerp*(a,b,m)' does 'b*m+(-a*m+a)' (2 ops). | COMMENT |
| LOW | external/GPUOpen/ffx_a.h | 101 | //_____________________________________________________________/\_______________________________________________________ | COMMENT |
| LOW | external/GPUOpen/ffx_a.h | 141 | A_STATIC AU1 AU1_AF1(AF1 a){union{AF1 f;AU1 u;}bits;bits.f=a;return bits.u;} | COMMENT |
| LOW | external/GPUOpen/ffx_a.h | 161 | //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// | COMMENT |
| LOW | external/GPUOpen/ffx_a.h | 181 | #define inAD3 AD1 *A_RESTRICT | COMMENT |
| LOW | external/GPUOpen/ffx_a.h | 201 | #define inoutAL4 AL1 *A_RESTRICT | COMMENT |
| LOW | external/GPUOpen/ffx_a.h | 221 | #define varAD4(x) AD1 x[4] | COMMENT |
| 1022 more matches not shown… | ||||
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| CRITICAL | …g/vita3k/emulator/ui/screens/settings/SettingsRoute.kt | 619 | verticalArrangement = androidx.compose.foundation.layout.Arrangement.spacedBy(16.dp) | CODE |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | vita3k/renderer/src/vulkan/surface_cache.cpp | 113 | // don't forget to destroy in the right order | COMMENT |
| LOW | vita3k/renderer/src/vulkan/creation.cpp | 236 | // don't forget to destroy the framebuffers | COMMENT |
| LOW | vita3k/shader/include/shader/uniform_block.h | 22 | // it is put next to the RenderVertUniformBlock so we don't forget to update both fields every time | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| MEDIUM | …a/org/vita3k/emulator/ui/screens/InitialSetupScreen.kt | 71 | """<div align="center">To get started, please install all PS Vita firmware files.<br><br>A comprehensive guide is av | STRING |
| MEDIUM | external/ddspp/ddspp.h | 841 | // likely written by D3DX. The more robust solution is to use the 'DX10' | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| MEDIUM | external/CMakeLists.txt | 460 | # ---------------------------------------------------------------------------------------- | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | tools/usse-decoder-gen/autogen.py | 10 | # Set this to true to indent the annotation string in line with the match string | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | vita3k/modules/SceCommonDialog/SceCommonDialog.cpp | 389 | // TODO: implement the remaining system message types | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | tools/i18n/generate_lang_catalog.py | 1 | CODE |