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// File: Graphic3d_TextureRoot.cxx
// Created: Mon Jul 28 17:47:49 1997
// Author: Pierre CHALAMET
// <pct@sgi93>
//
// modified:
// 8/09/97 : mise en commentaire des tentatives pour charger
// autre chose que du RGB. AlienImage buggee ?
// 5/01/99 : Ajout test sur les objets Path et FileName dans LoadTexture().
// Si le path est null on trappe.
// 11/06/99 : GG Enable to use GIF and BMP image format
// 10/01/00 : GG IMP Add Path() and Type() methods.
// 10/11/00 : GG Add Image() & LoadTexture() methods.
#define IMP140601 //GG Avoid to change the Trek of the current defined path
// when the directory string is NULL or empty.
#define xTRACE 1
#include <Graphic3d_TextureRoot.ixx>
#include <Graphic3d_GraphicDevice.hxx>
#include <Graphic3d_GraphicDriver.hxx>
#include <AlienImage_EuclidAlienImage.hxx>
#include <AlienImage_SGIRGBAlienImage.hxx>
#include <AlienImage_XAlienImage.hxx>
#include <AlienImage_GIFAlienImage.hxx>
#include <AlienImage_BMPAlienImage.hxx>
#include <AlienImage_AidaAlienImage.hxx>
#include <AlienImage_SunRFAlienImage.hxx>
#include <AlienImage_AlienImage.hxx>
#include <OSD_Protection.hxx>
#include <OSD_File.hxx>
#include <stdio.h>
Graphic3d_TextureRoot::Graphic3d_TextureRoot(const Handle(Graphic3d_StructureManager)& SM,const Standard_CString Path,const Standard_CString FileName,const Graphic3d_TypeOfTexture Type) : MyPath(FileName),MyType(Type)
{
// It will be necessary to improve the code below as soon as 3D or 4D textures
// are implemented. Currently, always allocating an array for two texture bounds...
MyTexUpperBounds = new TColStd_HArray1OfReal(1,2);
#ifdef IMP140601
if( Path && (strlen(Path) > 0) )
#endif
MyPath.SetTrek(TCollection_AsciiString( Path ));
MyGraphicDriver = Handle(Graphic3d_GraphicDriver)::DownCast(SM->GraphicDevice()->GraphicDriver());
if (MyGraphicDriver->InquireTextureAvailable())
{
// chargement de l'image
//-GG Handle(AlienImage_AlienImage) MyImage = LoadTexture();
if (MyImage.IsNull() && FileName && (strlen(FileName) > 0))
MyImage = LoadTexture();
if (MyImage.IsNull()) {
MyTexId = -1;
return;
}
MyTexId = MyGraphicDriver->CreateTexture(Type, MyImage, FileName, MyTexUpperBounds);
}
#ifdef TRACE
printf(" *** Graphic3d_TextureRoot::Create() textId %d\n",MyTexId);
#endif
}
void Graphic3d_TextureRoot::Destroy() const
{
if (MyTexId >= 0 )
MyGraphicDriver->DestroyTexture(MyTexId);
#ifdef TRACE
printf(" *** Graphic3d_TextureRoot::Destroy() textId %d\n",MyTexId);
#endif
}
Standard_Integer Graphic3d_TextureRoot::TextureId() const
{
return MyTexId;
}
void Graphic3d_TextureRoot::Update() const
{
if( MyTexId >= 0 )
MyGraphicDriver->ModifyTexture(MyTexId, MyCInitTexture);
}
Standard_Boolean Graphic3d_TextureRoot::IsDone() const
{
return (MyTexId >= 0) ? Standard_True : Standard_False;
}
void Graphic3d_TextureRoot::LoadTexture(const Handle(AlienImage_AlienImage)& anImage) {
if (MyGraphicDriver->InquireTextureAvailable()) {
if( MyTexId >= 0 )
MyGraphicDriver->DestroyTexture(MyTexId);
MyImage = anImage;
MyTexId = MyGraphicDriver->CreateTexture(MyType, MyImage, "", MyTexUpperBounds);
Update();
}
}
Handle(AlienImage_AlienImage) Graphic3d_TextureRoot::LoadTexture() const
{
OSD_Protection Protection( OSD_R, OSD_R, OSD_R, OSD_R ) ; /* Read Only */
Handle(AlienImage_AlienImage) TheAlienImage = NULL ;
OSD_File File(MyPath);
File.Open(OSD_ReadOnly, Protection);
// open file ok ?
if ( File.IsOpen() == Standard_False ) {
TCollection_AsciiString sysname;
MyPath.SystemName(sysname);
cout << " *** Can't open texture file '" << sysname << "'" << endl;
return TheAlienImage;
}
////////////////////////
// file reading //
////////////////////////
// image X ?
////////////
Handle(AlienImage_XAlienImage) XAlienImage = new AlienImage_XAlienImage() ;
if (XAlienImage->Read( File )) {
File.Close();
return XAlienImage;
}
// image GIF ?
////////////
Handle(AlienImage_GIFAlienImage) GIFAlienImage = new AlienImage_GIFAlienImage() ;
if (GIFAlienImage->Read( File )) {
File.Close();
return GIFAlienImage;
}
// image BMP ?
////////////
Handle(AlienImage_BMPAlienImage) BMPAlienImage = new AlienImage_BMPAlienImage() ;
if (BMPAlienImage->Read( File )) {
File.Close();
return BMPAlienImage;
}
// SunRaster ?
//////////////
Handle(AlienImage_SunRFAlienImage) SunRFAlienImage = new AlienImage_SunRFAlienImage() ;
if (SunRFAlienImage->Read( File )) {
File.Close();
return SunRFAlienImage;
}
// Aida ?
/////////
Handle(AlienImage_AidaAlienImage) AidaAlienImage = new AlienImage_AidaAlienImage() ;
if (AidaAlienImage->Read( File )) {
File.Close();
return AidaAlienImage;
}
// Euclid ?
///////////
Handle(AlienImage_EuclidAlienImage) EuclidAlienImage = new AlienImage_EuclidAlienImage() ;
if (EuclidAlienImage->Read( File )) {
File.Close();
return EuclidAlienImage;
}
// SGIRGB ?
///////////
Handle(AlienImage_SGIRGBAlienImage) SGIRGBAlienImage = new AlienImage_SGIRGBAlienImage() ;
if (SGIRGBAlienImage->Read( File )) {
File.Close();
return SGIRGBAlienImage;
}
// raise exception: file type unknown
return TheAlienImage;
}
const OSD_Path& Graphic3d_TextureRoot::Path() const {
return MyPath;
}
Graphic3d_TypeOfTexture Graphic3d_TextureRoot::Type() const {
return MyType;
}
Handle(AlienImage_AlienImage) Graphic3d_TextureRoot::Image() const {
return MyImage;
}
Handle(TColStd_HArray1OfReal) Graphic3d_TextureRoot::GetTexUpperBounds() const
{
return MyTexUpperBounds;
}
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