西风逍遥游
4377e062dd
Squashed onto current main. Adds src/engine/common/Assert.h (EV_PARAM_CHECK / EV_ASSERT backed by zeroerr), an EVENGINE_ENABLE_ASSERTS option (non-Debug builds strip ZEROERR_NO_ASSERT unless enabled), parameter checks at key entry points, Doxygen comments across headers, Doxyfile + make docs / CMake docs targets, and Windows setup + code conventions in AGENTS.md.
43 lines
1.3 KiB
C++
43 lines
1.3 KiB
C++
#pragma once
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#include "virtualgeometry/VirtualGeometryAsset.h"
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#include <cstdint>
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#include <vector>
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namespace eve::virtualgeometry {
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struct VgUniforms {
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float viewProj[16];
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float model[16];
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float cameraPos[4];
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float params[4]; // x=viewW, y=viewH, z=projScale, w=errorPx
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float frustum[24]; // 6 planes
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float misc[4]; // x=clusterCount
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};
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/**
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* @brief Opaque backend state for one virtual-geometry renderer. Owned by
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* VirtualGeometryRenderer; allocated/freed by the active backend.
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*/
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struct VgBackend {
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void *state = nullptr; // vulkan::VgState*
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};
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// ---- backend interface (implemented in vulkan/) ----
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void vgCreate(VgBackend &be);
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void vgDestroy(VgBackend &be);
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// Upload a built asset (positions/triangles/clusters) to the GPU.
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void vgUpload(VgBackend &be, const VirtualGeometryAsset &asset);
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void vgUploadUniforms(VgBackend &be, const VgUniforms &u);
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void vgReset(VgBackend &be, int visibleCapacity);
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// Dispatch cull + raster for the given workgroup counts. Returns visible count.
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int vgUpdate(VgBackend &be, int clusterCount, int visibleCapacity, int viewW, int viewH);
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// Read the visibility buffer back to CPU (packed depth<<16|clusterId).
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bool vgReadPixels(VgBackend &be, std::vector<uint32_t> &out);
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} // namespace eve::virtualgeometry
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