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Bind shared lighting ABI and shade authored local lights

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Emil
2026-09-24 01:53:14 +03:00
parent 674e3e812b
commit cfcfdab949
14 changed files with 561 additions and 52 deletions
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tests/render_reload_tests.cpp
+35 -2
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@@ -59,6 +59,27 @@ int main() {
const auto original_reflection = read_text(bundle / "fragmentMain.reflection.json");
const auto original_fingerprint = Json::parse(original_reflection).at("layout_fingerprint");
render::validate_shader_bundle(bundle);
auto bad_lighting_stride = Json::parse(original_reflection);
auto& lighting_descriptors = bad_lighting_stride["layout"]["descriptors"];
bool found_local_buffer = false;
for (auto& descriptor : lighting_descriptors)
if (descriptor["set"] == 1 && descriptor["binding"] == 1) {
descriptor["element_stride"] = 96;
found_local_buffer = true;
}
require(found_local_buffer, "Lighting stride fixture exists");
bad_lighting_stride["layout_fingerprint"] =
sha256(bad_lighting_stride["layout"].dump());
atomic_write_json(bundle / "fragmentMain.reflection.json", bad_lighting_stride);
bool rejected_lighting_stride = false;
try {
render::validate_shader_bundle(bundle);
} catch (const std::exception&) {
rejected_lighting_stride = true;
}
require(rejected_lighting_stride,
"Rehashed incompatible local-light element stride must be rejected");
atomic_write(bundle / "fragmentMain.reflection.json", original_reflection);
render::RendererConfig configuration;
configuration.width = configuration.height = 64;
configuration.headless = true;
@@ -161,6 +182,18 @@ int main() {
atomic_write(bundle / "fragmentMain.spv", "damaged bytecode");
retained();
restore();
auto incompatible = original_source;
auto at = incompatible.find(" float4 reserved;");
require(at != std::string::npos, "Local-light stride fixture exists");
incompatible.replace(at, std::string(" float4 reserved;").size(),
" float4 reserved;\n float4 incompatibleExtraLane;");
atomic_write(source, incompatible);
require(compile(source, bundle) == 0, "Compile incompatible light-buffer stride");
require(read_json(bundle / "fragmentMain.reflection.json").at("layout_fingerprint") !=
original_fingerprint,
"Lighting stride edit changes normalized layout fingerprint");
retained();
restore();
auto malformed = original_spirv;
for (int i = 0; i < 4; ++i)
malformed[20 + i] = 0; // zero-word SPIR-V instruction
@@ -170,8 +203,8 @@ int main() {
atomic_write_json(bundle / "fragmentMain.reflection.json", metadata);
retained();
restore();
auto incompatible = original_source;
auto at = incompatible.find("[[vk::binding(2,0)]]");
incompatible = original_source;
at = incompatible.find("[[vk::binding(2,0)]]");
require(at != std::string::npos, "Shader descriptor fixture exists");
incompatible.replace(at, std::string("[[vk::binding(2,0)]]").size(),
"[[vk::binding(7,0)]]");