Gabriele Cosmo
94 lines
2.7 KiB
Plaintext
94 lines
2.7 KiB
Plaintext
// Copyright (C) 2010, Guy Barrand. All rights reserved.
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// See the file tools.license for terms.
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#ifndef tools_sg_gstos_add
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#define tools_sg_gstos_add
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#include "../vmanip"
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#include "../glprims"
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#include "../lina/mat4f"
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namespace tools {
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namespace sg {
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class gstos_add {
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public:
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gstos_add(){}
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virtual ~gstos_add(){}
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public:
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gstos_add(const gstos_add&) {}
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gstos_add& operator=(const gstos_add&){return *this;}
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public:
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void clear() {m_xyzs.clear();m_nms.clear();}
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void add_points(size_t a_floatn,const float* a_xyzs) {
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append(m_xyzs,a_floatn,a_xyzs);
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}
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void add_lines(size_t a_floatn,const float* a_xyzs) {
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append(m_xyzs,a_floatn,a_xyzs);
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}
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void add_line_strip(size_t a_floatn,const float* a_xyzs) {
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size_t num = a_floatn/3;
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if(num<2) return;
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size_t nxyzs = (num-1)*2*3;
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size_t offset = m_xyzs.size();
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m_xyzs.resize(offset+nxyzs);
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float* pxyzs = (m_xyzs.data())+offset;
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gl::line_strip_to_lines(num,a_xyzs,pxyzs);
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}
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void add_line_loop(size_t a_floatn,const float* a_xyzs) {
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size_t num = a_floatn/3;
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if(num<2) return;
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size_t nxyzs = num*2*3;
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size_t offset = m_xyzs.size();
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m_xyzs.resize(offset+nxyzs);
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float* pxyzs = (m_xyzs.data())+offset;
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gl::line_loop_to_lines(num,a_xyzs,pxyzs);
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}
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void add_triangles_normal(size_t a_floatn,const float* a_xyzs,const float* a_nms) {
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append(m_xyzs,a_floatn,a_xyzs);
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append(m_nms,a_floatn,a_nms);
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}
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void add_triangle_strip_normal(size_t a_floatn,const float* a_xyzs,const float* a_nms) {
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size_t num = a_floatn/3;
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if(num<3) return;
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size_t nxyzs = (num-2)*3*3;
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size_t offset = m_xyzs.size();
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m_xyzs.resize(offset+nxyzs);
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float* pxyzs = (m_xyzs.data())+offset;
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offset = m_nms.size();
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m_nms.resize(offset+nxyzs);
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float* pnms = (m_nms.data())+offset;
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gl::triangle_strip_to_triangles_nms(num,a_xyzs,a_nms,pxyzs,pnms);
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}
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void add_triangle_fan_normal(size_t a_floatn,const float* a_xyzs,const float* a_nms) {
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size_t num = a_floatn/3;
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if(num<3) return;
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size_t nxyzs = (num-2)*3*3;
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size_t offset = m_xyzs.size();
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m_xyzs.resize(offset+nxyzs);
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float* pxyzs = (m_xyzs.data())+offset;
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offset = m_nms.size();
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m_nms.resize(offset+nxyzs);
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float* pnms = (m_nms.data())+offset;
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gl::triangle_fan_to_triangles_nms(num,a_xyzs,a_nms,pxyzs,pnms);
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}
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void add_triangle_strip_as_triangles(size_t a_floatn,const float* a_xyzs,const float* a_nms) { //used in sg::sphere, icosahedron_sphere.
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add_triangle_strip_normal(a_floatn,a_xyzs,a_nms);
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}
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public:
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std::vector<float> m_xyzs;
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std::vector<float> m_nms;
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size_t m_gsto_points_sz;
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size_t m_gsto_lines_sz;
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size_t m_gsto_tris_sz;
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size_t m_gsto_nms_sz;
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};
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}}
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#endif
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