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/* This file is part of the Spring engine (GPL v2 or later), see LICENSE.html */
#ifndef VERTEXARRAY_H
#define VERTEXARRAY_H
#include "myGL.h"
#include "System/Platform/errorhandler.h"
#define VA_INIT_VERTEXES 1000 // please don't change this, some files rely on specific initial sizes
#define VA_INIT_STRIPS 100
// number of elements (bytes / sizeof(float)) per vertex
#define VA_SIZE_2D0 2
#define VA_SIZE_0 3
#define VA_SIZE_C 4
#define VA_SIZE_N 6
#define VA_SIZE_T 5
#define VA_SIZE_TN 8
#define VA_SIZE_TNT 14
#define VA_SIZE_TC 6
#define VA_SIZE_T2 7
#define VA_SIZE_2DT 4
class CVertexArray
{
public:
typedef void (*StripCallback)(void* data);
public:
CVertexArray(unsigned int maxVerts = 1 << 16);
virtual ~CVertexArray();
void Initialize();
inline void CheckInitSize(const unsigned int vertexes, const unsigned int strips = 0);
inline void AddVertex0(const float3& p);
inline void AddVertex0(float x, float y, float z);
inline void AddVertex2d0(float x, float z);
inline void AddVertexN(const float3& p, const float3& n);
inline void AddVertexT(const float3& p, float tx, float ty);
inline void AddVertexC(const float3& p, const unsigned char* c);
inline void AddVertexTC(const float3& p, float tx, float ty, const unsigned char* c);
inline void AddVertexTN(const float3& p, float tx, float ty, const float3& n);
inline void AddVertexTNT(const float3& p, float tx, float ty, const float3& n, const float3& st, const float3& tt);
inline void AddVertexT2(const float3& p, float t1x, float t1y, float t2x, float t2y);
inline void AddVertex2dT(float x, float y, float tx, float ty);
void DrawArray0(const int drawType, unsigned int stride = sizeof(float) * VA_SIZE_0);
void DrawArray2d0(const int drawType, unsigned int stride = sizeof(float) * VA_SIZE_2D0);
void DrawArrayN(const int drawType, unsigned int stride = sizeof(float) * VA_SIZE_N);
void DrawArrayT(const int drawType, unsigned int stride = sizeof(float) * VA_SIZE_T);
void DrawArrayC(const int drawType, unsigned int stride = sizeof(float) * VA_SIZE_C);
void DrawArrayTC(const int drawType, unsigned int stride = sizeof(float) * VA_SIZE_TC);
void DrawArrayTN(const int drawType, unsigned int stride = sizeof(float) * VA_SIZE_TN);
void DrawArrayTNT(const int drawType, unsigned int stride = sizeof(float) * VA_SIZE_TNT);
void DrawArrayT2(const int drawType, unsigned int stride = sizeof(float) * VA_SIZE_T2);
void DrawArray2dT(const int drawType, unsigned int stride = sizeof(float) * VA_SIZE_2DT);
void DrawArray2dT(const int drawType, StripCallback callback, void* data, unsigned int stride = sizeof(float) * VA_SIZE_2DT);
//! same as the AddVertex... functions just without automated CheckEnlargeDrawArray
inline void AddVertexQ0(float x, float y, float z);
inline void AddVertexQ0(const float3& f3) { AddVertexQ0(f3.x, f3.y, f3.z); }
inline void AddVertex2dQ0(float x, float z);
inline void AddVertexQN(const float3& p, const float3& n);
inline void AddVertexQC(const float3& p, const unsigned char* c);
inline void AddVertexQT(const float3& p, float tx, float ty);
inline void AddVertex2dQT(float x, float y, float tx, float ty);
inline void AddVertexQTN(const float3& p, float tx, float ty, const float3& n);
inline void AddVertexQTNT(const float3& p, float tx, float ty, const float3& n, const float3& st, const float3& tt);
inline void AddVertexQTC(const float3& p, float tx, float ty, const unsigned char* c);
//! same as EndStrip, but without automated EnlargeStripArray
inline void EndStripQ();
void EndStrip();
bool IsReady() const;
inline unsigned int drawIndex() const;
inline void EnlargeArrays(const unsigned int vertexes, const unsigned int strips, const unsigned int stripsize = VA_SIZE_0);
float* drawArray;
float* drawArrayPos;
float* drawArraySize;
unsigned int* stripArray;
unsigned int* stripArrayPos;
unsigned int* stripArraySize;
unsigned int maxVertices;
protected:
void DrawArrays(const GLenum mode, const unsigned int stride);
void DrawArraysCallback(const GLenum mode, const unsigned int stride, StripCallback callback, void* data);
inline void CheckEnlargeDrawArray();
void EnlargeStripArray();
void EnlargeDrawArray();
inline void CheckEndStrip();
};
#include "VertexArray.inl"
#endif /* VERTEXARRAY_H */
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