#include <opensubdiv/osd/cpuVertexBuffer.h>

typedef OpenSubdiv::Osd::CpuVertexBuffer CpuVertexBuffer;

extern "C" {
/// Creator. Returns NULL if error.
CpuVertexBuffer* CpuVertexBuffer_Create(int numElements, int numVertices,
                                        void* deviceContext) {
    return OpenSubdiv::Osd::CpuVertexBuffer::Create(numElements, numVertices,
                                                    deviceContext);
}

/// Destructor.
void CpuVertexBuffer_destroy(CpuVertexBuffer* vb) { delete vb; }

/// This method is meant to be used in client code in order to provide
/// coarse vertices data to Osd.
void CpuVertexBuffer_UpdateData(CpuVertexBuffer* vb, const float* src,
                                int startVertex, int numVertices,
                                void* deviceContext) {
    vb->UpdateData(src, startVertex, numVertices, deviceContext);
}

/// Returns how many elements defined in this vertex buffer.
int CpuVertexBuffer_GetNumElements(CpuVertexBuffer* vb) {
    return vb->GetNumElements();
}

/// Returns how many vertices allocated in this vertex buffer.
int CpuVertexBuffer_GetNumVertices(CpuVertexBuffer* vb) {
    return vb->GetNumVertices();
}

/// Returns the address of CPU buffer
float* CpuVertexBuffer_BindCpuBuffer(CpuVertexBuffer* vb) {
    return vb->BindCpuBuffer();
}
}