Catcrafts/Crafter.Graphics
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perf(pipeline): shared, disk-persisted VkPipelineCache (#69)

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vkCreateComputePipelines and vkCreateRayTracingPipelinesKHR were passed
VK_NULL_HANDLE, so the driver couldn't reuse compiled shader binaries
across the pipelines built at startup (4 UI shaders + user/RT pipelines)
or across runs.

Add one process-wide Device::pipelineCache. LoadPipelineCache (called
from Initialize) seeds it from pipeline_cache.bin when the file's
VkPipelineCacheHeaderVersionOne header matches this device's
vendorID / deviceID / pipelineCacheUUID; a stale or foreign blob is
discarded so the driver never rejects it. SavePipelineCache is registered
with std::atexit, serialising the cache at process shutdown without any
explicit teardown hook. Both create sites now pass the cache; a null
handle stays valid, so no create-site null check is needed.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
catbot 2026-06-16 18:23:25 +00:00
commit a3a6dd2006
4 changed files with 144 additions and 4 deletions
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interfaces/Crafter.Graphics-PipelineRTVulkan.cppm
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@ -82,7 +82,7 @@ export namespace Crafter {
.layout = VK_NULL_HANDLE
};
Device::CheckVkResult(Device::vkCreateRayTracingPipelinesKHR(Device::device, {}, {}, 1, &rtPipelineInfo, nullptr, &pipeline));
Device::CheckVkResult(Device::vkCreateRayTracingPipelinesKHR(Device::device, {}, Device::pipelineCache, 1, &rtPipelineInfo, nullptr, &pipeline));
std::size_t dataSize = Device::rayTracingProperties.shaderGroupHandleSize * rtPipelineInfo.groupCount;
shaderHandles.resize(dataSize);