X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/ef0e92205a01c7d0ca6f381cc690cb5d4fa595c9..465de0be705e52c7f97e9bb6169af9d20a7f72a8:/include/wx/osx/pngread.h diff --git a/include/wx/osx/pngread.h b/include/wx/osx/pngread.h index 7481e1d0d2..bdf466b8a3 100644 --- a/include/wx/osx/pngread.h +++ b/include/wx/osx/pngread.h @@ -1,5 +1,287 @@ -#ifdef __WXMAC_CLASSIC__ -#include "wx/osx/classic/pngread.h" -#else -#include "wx/osx/carbon/pngread.h" +/* + * File: pngread.h + * Purpose: PNG file reader + * Author: Alejandro Aguilar Sierra/Julian Smart + * Created: 1995 + * Copyright: (c) 1995, Alejandro Aguilar Sierra + * + * + */ + +#ifndef _WX_PNGREAD__ +#define _WX_PNGREAD__ + +#ifndef byte +typedef unsigned char byte; #endif + +#define WXIMA_COLORS DIB_PAL_COLORS + +typedef byte * ImagePointerType; + +typedef struct +{ + byte red; + byte green; + byte blue; +} rgb_color_struct; + + +#define COLORTYPE_PALETTE 1 +#define COLORTYPE_COLOR 2 +#define COLORTYPE_ALPHA 4 + +class wxPNGReader +{ +protected: + int filetype; + char filename[255]; + ImagePointerType RawImage; // Image data + + int Width, Height; // Dimensions + int Depth; // (bits x pixel) + int ColorType; // Bit 1 = Palette used + // Bit 2 = Color used + // Bit 3 = Alpha used + + long EfeWidth; // Efective Width + + void *lpbi; + int bgindex; + wxPalette* m_palette; + bool imageOK; +friend class wxPNGReaderIter; +public: + wxPNGReader(void); + wxPNGReader (char* ImageFileName); // Read an image file + virtual ~wxPNGReader (); + + void Create(int width, int height, int deep, int colortype=-1); + + bool ReadFile( char* ImageFileName=0 ); + bool SaveFile( char* ImageFileName=0 ); + bool SaveXPM(char *filename, char *name = 0); + int GetWidth( void ) const { return Width; } + int GetHeight( void ) const { return Height; } + int GetDepth( void ) const { return Depth; } + int GetColorType( void ) const { return ColorType; } + + int GetIndex(int x, int y); + bool GetRGB(int x, int y, byte* r, byte* g, byte* b); + + bool SetIndex(int x, int y, int index); + bool SetRGB(int x, int y, byte r, byte g, byte b); + + // ColorMap settings + bool SetPalette(wxPalette* colourmap); + bool SetPalette(int n, rgb_color_struct *rgb_struct); + bool SetPalette(int n, byte *r, byte *g=0, byte *b=0); + wxPalette* GetPalette() const { return m_palette; } + + void NullData(); + inline int GetBGIndex(void) { return bgindex; } + + inline bool Inside(int x, int y) + { return (0<=y && yRawImage; + Itx = Ity = 0; + Stepx = Stepy = 0; +} + +inline +wxPNGReaderIter::operator wxPNGReader* () +{ + return ima; +} + +inline +bool wxPNGReaderIter::ItOK () +{ + if (ima) + return ima->Inside(Itx, Ity); + else + return FALSE; +} + + +inline void wxPNGReaderIter::reset() +{ + IterImage = ima->RawImage; + Itx = Ity = 0; +} + +inline void wxPNGReaderIter::upset() +{ + Itx = 0; + Ity = ima->Height-1; + IterImage = ima->RawImage + ima->EfeWidth*(ima->Height-1); +} + +inline bool wxPNGReaderIter::NextRow() +{ + if (++Ity >= ima->Height) return 0; + IterImage += ima->EfeWidth; + return 1; +} + +inline bool wxPNGReaderIter::PrevRow() +{ + if (--Ity < 0) return 0; + IterImage -= ima->EfeWidth; + return 1; +} + +////////////////////////// AD - for interlace /////////////////////////////// +inline void wxPNGReaderIter::SetY(int y) +{ + if ((y < 0) || (y > ima->Height)) return; + Ity = y; + IterImage = ima->RawImage + ima->EfeWidth*y; +} + +///////////////////////////////////////////////////////////////////////////// + +inline void wxPNGReaderIter::SetRow(byte *buf, int n) +{ +// Here should be bcopy or memcpy + //_fmemcpy(IterImage, (void far *)buf, n); + if (n<0) + n = ima->GetWidth(); + + for (int i=0; iEfeWidth) + return 1; + else + if (++Ity < ima->Height) + { + IterImage += ima->EfeWidth; + Itx = 0; + return 1; + } else + return 0; +} + +inline bool wxPNGReaderIter::PrevByte() +{ + if (--Itx >= 0) + return 1; + else + if (--Ity >= 0) + { + IterImage -= ima->EfeWidth; + Itx = 0; + return 1; + } else + return 0; +} + +inline bool wxPNGReaderIter::NextStep() +{ + Itx += Stepx; + if (Itx < ima->EfeWidth) + return 1; + else { + Ity += Stepy; + if (Ity < ima->Height) + { + IterImage += ima->EfeWidth; + Itx = 0; + return 1; + } else + return 0; + } +} + +inline bool wxPNGReaderIter::PrevStep() +{ + Itx -= Stepx; + if (Itx >= 0) + return 1; + else { + Ity -= Stepy; + if (Ity >= 0 && Ity < ima->Height) + { + IterImage -= ima->EfeWidth; + Itx = 0; + return 1; + } else + return 0; + } +} + +#endif +