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314 lines
8.5 KiB
C++
314 lines
8.5 KiB
C++
// NeL - MMORPG Framework <http://dev.ryzom.com/projects/nel/>
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// Copyright (C) 2010 Winch Gate Property Limited
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as
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// published by the Free Software Foundation, either version 3 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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#include "std3d.h"
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#include "nel/3d/texture_file.h"
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#include "nel/misc/file.h"
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#include "nel/misc/path.h"
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#include "nel/misc/debug.h"
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#include "nel/misc/hierarchical_timer.h"
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using namespace std;
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using namespace NLMISC;
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namespace NL3D
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{
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bool CTextureFile::_SupportNonPowerOfTwoTextures = false;
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///==================================================================
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void CTextureFile::buildBitmapFromFile(NLMISC::CBitmap &dest, const std::string &fileName, bool asyncload, uint8 mipMapSkip, bool enlargeCanvasNonPOW2Tex)
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{
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/* ***********************************************
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* WARNING: This Class/Method must be thread-safe (ctor/dtor/serial): no static access for instance
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* It can be loaded/called through CAsyncFileManager for instance
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* ***********************************************/
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H_AUTO( NL3D_buildBitmapFromFile )
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NLMISC::CIFile f;
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string file;
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{
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H_AUTO( NL3D_buildBitmapPathLookup )
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file = CPath::lookup(fileName, false);
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}
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if( file.empty() )
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{
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H_AUTO( NL3D_makeDummyBitmap )
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// Not found...
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dest.makeDummy();
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nlwarning("Missing textureFile: %s", fileName.c_str());
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return;
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}
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{
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H_AUTO( NL3D_buildBitmapFileCache )
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f.setAsyncLoading (asyncload);
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f.setCacheFileOnOpen(false); //asyncload); //AJM: significant performance loss for caching when loading textures
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f.allowBNPCacheFileOnOpen(false); //asyncload);
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}
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{
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H_AUTO( NL3D_openBitmapFile)
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// Load bitmap.
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if (f.open(file))
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{
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H_AUTO( NL3D_loadBitmap )
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// skip DDS mipmap if wanted
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dest.load (f, mipMapSkip);
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}
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else
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{
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H_AUTO( NL3D_makeDummyBitmap )
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// Not found...
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dest.makeDummy();
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nlwarning("Missing textureFile: %s", fileName.c_str());
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return;
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}
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}
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// *** Need usercolor computing ?
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// Texture not compressed ?
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if (dest.PixelFormat == RGBA)
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{
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H_AUTO( NL3D_buildBitmapUserColor )
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// Make a filename
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string path = CFile::getFilename(fileName);
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string ext = strrchr (fileName.c_str(), '.');
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path.resize (path.size () - ext.size());
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path += "_usercolor" + ext;
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// Loopup the texture
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string file2 = CPath::lookup( path, false, false);
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if (!file2.empty())
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{
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// The file2 exist, load and compute it
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CBitmap bitmap;
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bitmap.loadGrayscaleAsAlpha (true);
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// Open and read the file2
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NLMISC::CIFile f2;
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f2.setAsyncLoading (asyncload);
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f2.setCacheFileOnOpen (asyncload); // Same as async loading
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if (f2.open(file2))
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{
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bitmap.load(f2);
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}
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else
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{
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// Not found...
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dest.makeDummy();
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nlwarning("Missing textureFile: %s", file2.c_str());
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return;
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}
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// Texture are the same size ?
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if ((dest.getWidth() == bitmap.getWidth()) && (dest.getHeight() == bitmap.getHeight()))
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{
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// Convert in Alpha
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if (bitmap.convertToType (CBitmap::Alpha))
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{
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// Compute it
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uint8 *userColor = (uint8 *)&(bitmap.getPixels ()[0]);
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CRGBA *color = (CRGBA *)&(dest.getPixels ()[0]);
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// For each pixel
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uint pixelCount = dest.getWidth()*dest.getHeight();
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uint pixel;
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for (pixel = 0; pixel<pixelCount; pixel++)
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{
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if (userColor[pixel]==0)
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{
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// New code: use new restrictions from IDriver.
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float Rt, Gt, Bt, At;
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float Lt;
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float Rtm, Gtm, Btm, Atm;
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// read 0-1 RGB pixel.
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Rt= (float)color[pixel].R/255;
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Gt= (float)color[pixel].G/255;
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Bt= (float)color[pixel].B/255;
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Lt= Rt*0.3f + Gt*0.56f + Bt*0.14f;
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// take Alpha from userColor src.
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At= (float)userColor[pixel]/255;
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Atm= 1-Lt*(1-At);
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// If normal case.
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if(Atm>0)
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{
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Rtm= Rt*At / Atm;
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Gtm= Gt*At / Atm;
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Btm= Bt*At / Atm;
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}
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// Else special case: At==0, and Lt==1.
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else
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{
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Rtm= Gtm= Btm= 0;
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}
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// copy to buffer.
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sint r,g,b,a;
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r= (sint)(Rtm*255+0.5f);
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g= (sint)(Gtm*255+0.5f);
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b= (sint)(Btm*255+0.5f);
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a= (sint)(Atm*255+0.5f);
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clamp(r, 0,255);
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clamp(g, 0,255);
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clamp(b, 0,255);
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clamp(a, 0,255);
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color[pixel].R = (uint8)r;
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color[pixel].G = (uint8)g;
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color[pixel].B = (uint8)b;
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color[pixel].A = (uint8)a;
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}
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}
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}
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else
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{
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nlinfo ("Can't convert the usercolor texture %s in alpha mode", file2.c_str());
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}
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}
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else
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{
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// Error
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nlinfo ("User color texture is not the same size than the texture. (Tex : %s, Usercolor : %s)", file.c_str(), file2.c_str());
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}
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}
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}
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if(!isPowerOf2(dest.getWidth()) || !isPowerOf2(dest.getHeight()) )
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{
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H_AUTO( NL3D_buildBitmapPowerOf2 )
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// If the user want to correct those texture so that their canvas is enlarged
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if (enlargeCanvasNonPOW2Tex)
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{
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uint pow2w = NLMISC::raiseToNextPowerOf2(dest.getWidth());
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uint pow2h = NLMISC::raiseToNextPowerOf2(dest.getHeight());
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CBitmap enlargedBitmap;
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enlargedBitmap.resize(pow2w, pow2h, dest.PixelFormat);
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// blit src bitmap
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enlargedBitmap.blit(&dest, 0, 0);
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// swap them
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dest.swap(enlargedBitmap);
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}
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else if (!_SupportNonPowerOfTwoTextures || dest.getMipMapCount() > 1)
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{
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// Bug...
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nlwarning("TextureFile: %s is not a Power Of 2: %d,%d", fileName.c_str(), dest.getWidth(), dest.getHeight());
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dest.makeNonPowerOf2Dummy();
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}
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}
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}
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/*==================================================================*\
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CTEXTUREFILE
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\*==================================================================*/
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/*------------------------------------------------------------------*\
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doGenerate()
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\*------------------------------------------------------------------*/
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void CTextureFile::doGenerate(bool async)
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{
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/* ***********************************************
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* WARNING: This Class/Method must be thread-safe (ctor/dtor/serial): no static access for instance
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* It can be loaded/called through CAsyncFileManager for instance
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* ***********************************************/
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H_AUTO( NL3D_TextureFileDoGenerate )
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buildBitmapFromFile(*this, _FileName, async, _MipMapSkipAtLoad, _EnlargeCanvasNonPOW2Tex);
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}
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// ***************************************************************************
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void CTextureFile::serial(NLMISC::IStream &f) throw(NLMISC::EStream)
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{
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/*
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Version 1:
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- AllowDegradation.
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Version 0:
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- base version.
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*/
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sint ver= f.serialVersion(1);
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// serial the base part of ITexture.
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ITexture::serial(f);
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f.serial(_FileName);
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if(ver>=1)
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f.serial(_AllowDegradation);
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else if(f.isReading())
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_AllowDegradation= true;
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if(f.isReading())
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touch();
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}
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// ***************************************************************************
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void CTextureFile::setAllowDegradation(bool allow)
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{
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_AllowDegradation= allow;
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}
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// ***************************************************************************
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CTextureFile::CTextureFile(const CTextureFile &other) : ITexture(other)
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{
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dupInfo(other);
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}
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// ***************************************************************************
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CTextureFile &CTextureFile::operator = (const CTextureFile &other)
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{
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// copy base infos
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(ITexture &) *this = (ITexture &) other;
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dupInfo(other);
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return *this;
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}
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// ***************************************************************************
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void CTextureFile::dupInfo(const CTextureFile &other)
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{
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_FileName = other._FileName;
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_AllowDegradation = other._AllowDegradation;
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_SupportSharing = other._SupportSharing;
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_MipMapSkipAtLoad = other._MipMapSkipAtLoad;
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_EnlargeCanvasNonPOW2Tex = other._EnlargeCanvasNonPOW2Tex;
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}
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// ***************************************************************************
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void CTextureFile::enableSharing(bool enable)
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{
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_SupportSharing = enable;
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}
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// ***************************************************************************
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void CTextureFile::setMipMapSkipAtLoad(uint8 level)
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{
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_MipMapSkipAtLoad= level;
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}
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// ***************************************************************************
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std::string CTextureFile::getShareName() const
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{
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return toLower(_FileName);
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}
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} // NL3D
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