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/***************************************************************************
texture.h
----------------------------------------------------------------------------
begin : june 2003
copyright : (C) 2003 by Pierre Alliez - INRIA
email : pierre.alliez@sophia.inria.fr
***************************************************************************/
#ifndef _TEXTURE_
#define _TEXTURE_
class Texture
{
private :
unsigned char *m_pData; // data
unsigned int m_Width; // width (pixels)
unsigned int m_Height; // height (pixels)
unsigned int m_Depth; // bits per pixel
unsigned int m_WidthByte32; // width (in bytes, and 32 bits aligned)
public :
// Life cycle
Texture();
virtual ~Texture();
// Get Data (explicit inline functions)
unsigned char *GetData() const { return m_pData; }
unsigned int GetWidth() const { return m_Width; }
unsigned int GetWidthByte32() const { return m_WidthByte32; }
unsigned int GetHeight() const { return m_Height;}
unsigned int GetDepth() const { return m_Depth; }
// Misc
int IsValid();
int SameSize(Texture *pTexture);
int BGRtoRGB();
static int HigherPowerOfTwo(int value);
static int LowerPowerOfTwo(int value);
// Updating
void UpdateWidthByte32();
void UpdateHeader();
unsigned int WidthByte32(unsigned int width,unsigned int depth);
// Clipboard
// HANDLE ExportHandle();
// int ImportHandle(HANDLE handle);
// Alpha
int HasAlpha() { return (m_Depth == 32); }
int AddAlphaLayer(unsigned char alpha);
int SetAlphaLayer(unsigned char alpha);
int SetAlphaLayer(Texture *pTexture); // Put an alpha layer from grey scale
// DuplicateMirror
int DuplicateMirror(int left=0,int top=0,int right=-1,int bottom=-1);
int DuplicateRepeatWidth(int left=0,int top=0,int right=-1,int bottom=-1);
int Extract(int left=0,int top=0,int right=-1,int bottom=-1);
// Buffer
int ReadBuffer(unsigned char *buffer, int width, int height, int depth);
int ReadBufferByte32(unsigned char *pData,int width,int height);
int ReadBuffer(float *buffer, int width, int height, int depth);
int ReadBuffer(double *buffer,int width, int height, int depth);
int Grey(unsigned int x,unsigned int y);
void Color(unsigned int x,unsigned int y,
unsigned char *pRed,unsigned char *pGreen,unsigned char *pBlue);
int ReadBuffer(float **ppBuffer, int width, int height,float ratio = 1.0f);
int WriteBuffer(float **ppBuffer,int width,int height);
int WriteBuffer32(float **ppBuffer,int width,int height);
// Misc
void GenerateGrid(unsigned int width,unsigned int height,int size,unsigned int thickness,
unsigned char r,unsigned char g,unsigned char b,
unsigned char rb,unsigned char gb,unsigned char bb);
void GenerateCheckerBoard(unsigned int width,unsigned int height,int size,
unsigned char r,unsigned char g,unsigned char b,
unsigned char rb,unsigned char gb,unsigned char bb);
void GenerateHStripes(unsigned int width,unsigned int height,int size,
unsigned char r,unsigned char g,unsigned char b,
unsigned char rb,unsigned char gb,unsigned char bb);
void GenerateVStripes(unsigned int width,unsigned int height,int size,
unsigned char r,unsigned char g,unsigned char b,
unsigned char rb,unsigned char gb,unsigned char bb);
void GenerateMirrorV(unsigned int width,unsigned int height,
unsigned char r,unsigned char g,unsigned char b,
unsigned char rb,unsigned char gb,unsigned char bb);
void GenerateMirrorH(unsigned int width,unsigned int height,
unsigned char r,unsigned char g,unsigned char b,
unsigned char rb,unsigned char gb,unsigned char bb);
void GenerateLines(unsigned int width,unsigned int height,int size,
unsigned char r,unsigned char g,unsigned char b,
unsigned char rb,unsigned char gb,unsigned char bb);
void GenerateGradientH(unsigned int width,unsigned int height,int size);
void GenerateGradientV(unsigned int width,unsigned int height,int size);
// Memory
int Alloc(unsigned int width,unsigned int height,unsigned int depth);
void Free();
void Fill(unsigned char r,unsigned char g,unsigned char b);
void Copy(Texture *pTexture);
void GreyToColor(unsigned char grey,unsigned char r,
unsigned char g,unsigned char b);
void ColorToColor(unsigned char r1,unsigned char g1,
unsigned char b1,unsigned char r2, unsigned char g2,
unsigned char b2);
};
#endif // _TEXTURE_
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