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Pin external shader bundle in lighting measurements

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This commit is contained in:
Emil
2026-09-24 03:09:58 +03:00
parent f70c8221e7
commit 6d78274e25
2 changed files with 43 additions and 2 deletions
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tools/benchmark_p3_lighting.py
+22 -2
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@@ -238,6 +238,22 @@ def _binary_sha256(path: Path) -> str:
return hashlib.file_digest(stream, "sha256").hexdigest()
def _shader_bundle_manifest(executable: Path) -> dict[str, str] | None:
# Test fixtures are Python programs. A native renderer loads SPIR-V from
# the shader directory beside its executable before checking other roots.
if executable.suffix.lower() == ".py":
return None
directory = executable.parent / "shaders"
required = ("vertexMain.spv", "fragmentMain.spv")
if not all((directory / name).is_file() for name in required):
raise ValueError(f"Benchmark shader bundle is missing beside {executable}")
files = sorted((path for path in directory.iterdir()
if path.is_file() and
(path.suffix == ".spv" or path.name.endswith(".reflection.json"))),
key=lambda path: path.name)
return {path.name: _binary_sha256(path) for path in files}
def _clean_source_revision(root: Path, expected: str) -> str:
revision = subprocess.check_output(["git", "-C", str(root), "rev-parse", "HEAD"],
text=True).strip()
@@ -260,6 +276,7 @@ def sweep(executable: Path, output: Path, shadows: str, commit: str,
source = (source_root or Path(__file__).resolve().parents[1]).resolve()
revision = _clean_source_revision(source, commit)
binary_sha256 = _binary_sha256(executable)
shader_manifest = _shader_bundle_manifest(executable)
if output.exists() and any(output.iterdir()):
raise ValueError(f"Output directory must be new or empty: {output}")
raw = output / "raw"
@@ -312,14 +329,17 @@ def sweep(executable: Path, output: Path, shadows: str, commit: str,
"acquisition_index"])
writer.writeheader()
writer.writerows(all_rows)
if _binary_sha256(executable) != binary_sha256 or _clean_source_revision(source, commit) != revision:
raise ValueError("Benchmark binary or source changed during the sweep")
if (_binary_sha256(executable) != binary_sha256 or
_shader_bundle_manifest(executable) != shader_manifest or
_clean_source_revision(source, commit) != revision):
raise ValueError("Benchmark binary, shader bundle or source changed during the sweep")
summary = {"format": "faset.p3-lighting-benchmark", "version": 1,
"commit": commit, "warmup_frames_per_run": WARMUP_FRAMES,
"measured_frames_per_run": MEASURED_FRAMES, "width": WIDTH, "height": HEIGHT,
"validation": validation, "driver": driver,
"source_revision": revision, "source_root": str(source), "source_dirty": False,
"benchmark_sha256": binary_sha256,
"shader_bundle": shader_manifest,
"device": identity[0], "lighting_path": identity[2],
"validation_enabled": identity[3] == "1", "build_configuration": identity[4],
"run_order": run_order,