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#include "CpuMesh.hpp"
bool CpuMesh::IsEmpty() const {
return !mVertexFormat->elements.empty();
}
std::byte* CpuMesh::GetVertices() const {
return mVertexData.get();
}
int CpuMesh::GetVertexNumBytes() const {
return mVertexByteCount;
}
std::byte* CpuMesh::GetIndices() const {
return mIndexData.get();
}
int CpuMesh::GetIndexNumBytes() const {
return mIndexCount * Tags::SizeOf(mIndexType);
}
GpuMesh* CpuMesh::SyncToGpuCreate() const {
if (IsEmpty()) return nullptr;
auto vertexBuffer = new GpuVertexBuffer();
vertexBuffer->Upload(mVertexData.get(), GetVertexNumBytes());
auto bindings = new BufferBindings();
for (auto& elm : mVertexFormat->elements) {
bindings->SetBinding(elm.bindingIndex, vertexBuffer);
}
auto indexBuffer = new GpuIndexBuffer();
indexBuffer->Upload(mIndexData.get(), mIndexType, mIndexCount);
return new GpuMesh(mVertexFormat.Get(), bindings, indexBuffer);
}
void CpuMesh::SyncToGpu(GpuMesh& mesh) const {
if (IsEmpty()) return;
auto& oldFormat = mesh.vertFormat;
auto& newFormat = this->mVertexFormat;
if (oldFormat != newFormat) {
auto buffer = new GpuVertexBuffer();
buffer->Upload(mVertexData.get(), GetVertexNumBytes());
mesh.vertBufBindings->Clear();
for (auto& elm : newFormat->elements) {
mesh.vertBufBindings->SetBinding(elm.bindingIndex, buffer);
}
oldFormat = newFormat;
}
mesh.indexBuf->Upload(mIndexData.get(), mIndexType, mIndexCount);
}
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