diff options
Diffstat (limited to 'thirdparty/embree/kernels/common/scene_triangle_mesh.cpp')
| -rw-r--r-- | thirdparty/embree/kernels/common/scene_triangle_mesh.cpp | 194 |
1 files changed, 194 insertions, 0 deletions
diff --git a/thirdparty/embree/kernels/common/scene_triangle_mesh.cpp b/thirdparty/embree/kernels/common/scene_triangle_mesh.cpp new file mode 100644 index 0000000000..3bbd7e51ae --- /dev/null +++ b/thirdparty/embree/kernels/common/scene_triangle_mesh.cpp @@ -0,0 +1,194 @@ +// Copyright 2009-2021 Intel Corporation +// SPDX-License-Identifier: Apache-2.0 + +#include "scene_triangle_mesh.h" +#include "scene.h" + +namespace embree +{ +#if defined(EMBREE_LOWEST_ISA) + + TriangleMesh::TriangleMesh (Device* device) + : Geometry(device,GTY_TRIANGLE_MESH,0,1) + { + vertices.resize(numTimeSteps); + } + + void TriangleMesh::setMask (unsigned mask) + { + this->mask = mask; + Geometry::update(); + } + + void TriangleMesh::setNumTimeSteps (unsigned int numTimeSteps) + { + vertices.resize(numTimeSteps); + Geometry::setNumTimeSteps(numTimeSteps); + } + + void TriangleMesh::setVertexAttributeCount (unsigned int N) + { + vertexAttribs.resize(N); + Geometry::update(); + } + + void TriangleMesh::setBuffer(RTCBufferType type, unsigned int slot, RTCFormat format, const Ref<Buffer>& buffer, size_t offset, size_t stride, unsigned int num) + { + /* verify that all accesses are 4 bytes aligned */ + if (((size_t(buffer->getPtr()) + offset) & 0x3) || (stride & 0x3)) + throw_RTCError(RTC_ERROR_INVALID_OPERATION, "data must be 4 bytes aligned"); + + if (type == RTC_BUFFER_TYPE_VERTEX) + { + if (format != RTC_FORMAT_FLOAT3) + throw_RTCError(RTC_ERROR_INVALID_OPERATION, "invalid vertex buffer format"); + + /* if buffer is larger than 16GB the premultiplied index optimization does not work */ + if (stride*num > 16ll*1024ll*1024ll*1024ll) + throw_RTCError(RTC_ERROR_INVALID_OPERATION, "vertex buffer can be at most 16GB large"); + + if (slot >= vertices.size()) + throw_RTCError(RTC_ERROR_INVALID_ARGUMENT, "invalid vertex buffer slot"); + + vertices[slot].set(buffer, offset, stride, num, format); + vertices[slot].checkPadding16(); + vertices0 = vertices[0]; + } + else if (type == RTC_BUFFER_TYPE_VERTEX_ATTRIBUTE) + { + if (format < RTC_FORMAT_FLOAT || format > RTC_FORMAT_FLOAT16) + throw_RTCError(RTC_ERROR_INVALID_OPERATION, "invalid vertex attribute buffer format"); + + if (slot >= vertexAttribs.size()) + throw_RTCError(RTC_ERROR_INVALID_OPERATION, "invalid vertex attribute buffer slot"); + + vertexAttribs[slot].set(buffer, offset, stride, num, format); + vertexAttribs[slot].checkPadding16(); + } + else if (type == RTC_BUFFER_TYPE_INDEX) + { + if (slot != 0) + throw_RTCError(RTC_ERROR_INVALID_ARGUMENT, "invalid buffer slot"); + if (format != RTC_FORMAT_UINT3) + throw_RTCError(RTC_ERROR_INVALID_OPERATION, "invalid index buffer format"); + + triangles.set(buffer, offset, stride, num, format); + setNumPrimitives(num); + } + else + throw_RTCError(RTC_ERROR_INVALID_ARGUMENT, "unknown buffer type"); + } + + void* TriangleMesh::getBuffer(RTCBufferType type, unsigned int slot) + { + if (type == RTC_BUFFER_TYPE_INDEX) + { + if (slot != 0) + throw_RTCError(RTC_ERROR_INVALID_ARGUMENT, "invalid buffer slot"); + return triangles.getPtr(); + } + else if (type == RTC_BUFFER_TYPE_VERTEX) + { + if (slot >= vertices.size()) + throw_RTCError(RTC_ERROR_INVALID_ARGUMENT, "invalid buffer slot"); + return vertices[slot].getPtr(); + } + else if (type == RTC_BUFFER_TYPE_VERTEX_ATTRIBUTE) + { + if (slot >= vertexAttribs.size()) + throw_RTCError(RTC_ERROR_INVALID_ARGUMENT, "invalid buffer slot"); + return vertexAttribs[slot].getPtr(); + } + else + { + throw_RTCError(RTC_ERROR_INVALID_ARGUMENT, "unknown buffer type"); + return nullptr; + } + } + + void TriangleMesh::updateBuffer(RTCBufferType type, unsigned int slot) + { + if (type == RTC_BUFFER_TYPE_INDEX) + { + if (slot != 0) + throw_RTCError(RTC_ERROR_INVALID_ARGUMENT, "invalid buffer slot"); + triangles.setModified(); + } + else if (type == RTC_BUFFER_TYPE_VERTEX) + { + if (slot >= vertices.size()) + throw_RTCError(RTC_ERROR_INVALID_ARGUMENT, "invalid buffer slot"); + vertices[slot].setModified(); + } + else if (type == RTC_BUFFER_TYPE_VERTEX_ATTRIBUTE) + { + if (slot >= vertexAttribs.size()) + throw_RTCError(RTC_ERROR_INVALID_ARGUMENT, "invalid buffer slot"); + vertexAttribs[slot].setModified(); + } + else + { + throw_RTCError(RTC_ERROR_INVALID_ARGUMENT, "unknown buffer type"); + } + + Geometry::update(); + } + + void TriangleMesh::commit() + { + /* verify that stride of all time steps are identical */ + for (unsigned int t=0; t<numTimeSteps; t++) + if (vertices[t].getStride() != vertices[0].getStride()) + throw_RTCError(RTC_ERROR_INVALID_OPERATION,"stride of vertex buffers have to be identical for each time step"); + + Geometry::commit(); + } + + void TriangleMesh::addElementsToCount (GeometryCounts & counts) const + { + if (numTimeSteps == 1) counts.numTriangles += numPrimitives; + else counts.numMBTriangles += numPrimitives; + } + + bool TriangleMesh::verify() + { + /*! verify size of vertex arrays */ + if (vertices.size() == 0) return false; + for (const auto& buffer : vertices) + if (buffer.size() != numVertices()) + return false; + + /*! verify size of user vertex arrays */ + for (const auto& buffer : vertexAttribs) + if (buffer.size() != numVertices()) + return false; + + /*! verify triangle indices */ + for (size_t i=0; i<size(); i++) { + if (triangles[i].v[0] >= numVertices()) return false; + if (triangles[i].v[1] >= numVertices()) return false; + if (triangles[i].v[2] >= numVertices()) return false; + } + + /*! verify vertices */ + for (const auto& buffer : vertices) + for (size_t i=0; i<buffer.size(); i++) + if (!isvalid(buffer[i])) + return false; + + return true; + } + + void TriangleMesh::interpolate(const RTCInterpolateArguments* const args) { + interpolate_impl<4>(args); + } + +#endif + + namespace isa + { + TriangleMesh* createTriangleMesh(Device* device) { + return new TriangleMeshISA(device); + } + } +} |