84 lines
2.5 KiB
C++
84 lines
2.5 KiB
C++
#pragma once
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#ifndef _NB_DRAW
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#define _NB_DRAW
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#include <GLLoad.h>
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#include <exception>
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#include <map>
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#include <string>
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#include <vector>
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#include "Buffers.h"
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#include "Shader.h"
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#include "VAOManager.hpp"
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#define THROW_DRAW_ERROR(msg) throw DrawError(msg, __FILE__, __LINE__);
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namespace NB{
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class DrawError : public std::runtime_error {
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public:
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DrawError(const std::string&, const std::string& file="", int line=-1);
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};
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uint8_t VerticesFromPrimitives(GLenum, unsigned int num_prims=1);
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uint8_t PrimitivesFromVertices(GLenum, unsigned int);
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void copyVertexAttribute(const VertexAttribute&, VertexAttribute&);
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class DrawBuffer {
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public:
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typedef std::shared_ptr<Buffer> BufferManagerPointer;
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DrawBuffer(VertexAttributeList, GLenum prim_type=GL_TRIANGLES);
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//DrawBuffer(std::initializer_list<VertexAttribute>, std::initializer_list<VertexAttributePointer>);
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unsigned int vertSize() const;
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const std::shared_ptr<ShaderProgram> shader() const;
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unsigned int elementBufferID() const;
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unsigned int vertexBufferID() const;
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virtual void draw() const;
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RawVec vertAttrData(unsigned int);
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VertexAttributeList changeVertLayout(unsigned int, VertexAttributePointer);
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RawVec vertAttrData(unsigned int, const RawVec&);
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virtual void elementData(const std::vector<unsigned int>&);
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virtual void elementData(unsigned int);
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virtual void elementData(const std::vector<unsigned int>&, unsigned int offset);
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virtual void vertexData(const RawVec&);
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virtual void vertexData(unsigned int num_verts);
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virtual void vertexData(const RawVec&, unsigned int offset);
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BufferManagerPointer _vert_data;
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BufferManagerPointer _elmt_data;
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VAOManager _VAO;
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const GLenum _gl_primitive_type=0;
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virtual VertexAttributeList defaultVAO(VertexAttributeList);
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unsigned int _num_verts, _num_prims;
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protected:
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};
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class DrawInstanceBuffer : public DrawBuffer {
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public:
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DrawInstanceBuffer(VertexAttributeList, VertexAttributeList, GLenum primt_type=GL_TRIANGLES);
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unsigned int instSize() const;
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unsigned int instanceBufferID() const;
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virtual void draw() const override;
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VertexAttributeList changeInstanceLayout(unsigned int, VertexAttributePointer);
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virtual void instanceData(const RawVec&);
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virtual void instanceData(unsigned int);
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virtual void instanceData(const RawVec&, unsigned int offset);
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BufferManagerPointer _inst_data;
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virtual VertexAttributeList defaultVAO(VertexAttributeList);
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unsigned int _num_inst;
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protected:
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};
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}
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#endif |