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445 lines
10 KiB
C++
445 lines
10 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 "nel/misc/file.h"
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#include "nel/misc/common.h"
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#include "nel/misc/bitmap.h"
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#include "nel/misc/path.h"
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#include "nel/misc/cmd_args.h"
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#include "nel/misc/vector_2d.h"
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#include "nel/misc/uv.h"
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#include "nel/misc/algo.h"
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struct CPoint
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{
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CPoint(sint _x, sint _y) :x(_x), y(_y)
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{
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}
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CPoint operator + (const CPoint &p) const
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{
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return CPoint(x + p.x, y + p.y);
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}
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sint x;
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sint y;
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};
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const CPoint Up(0, -1);
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const CPoint Down(0, 1);
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const CPoint Left(-1, 0);
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const CPoint Right(1, 0);
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uint TextureSize = 4096;
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const NLMISC::CRGBA DiscardColor = NLMISC::CRGBA::Red;
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const NLMISC::CRGBA KeepColor = NLMISC::CRGBA::Blue;
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typedef std::vector<CPoint> CPoints;
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struct CFace
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{
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std::vector<uint> indices;
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};
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struct CObject
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{
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std::string name;
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std::vector<NLMISC::CUV> textureCoords;
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std::vector<CFace> faces;
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void display()
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{
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nlinfo("Object %s processed with %u vertices and %u faces", name.c_str(), (uint)textureCoords.size(), (uint)faces.size());
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}
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};
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bool fillPoint(NLMISC::CBitmap &bitmap, sint width, CPoints &points)
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{
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if (points.empty()) return false;
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// take last point in queue
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CPoint p(points.back());
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points.pop_back();
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NLMISC::CRGBA c = bitmap.getPixelColor(p.x, p.y);
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if (c == NLMISC::CRGBA::White)
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{
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// white is used for background
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// replace with color we want to discard
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bitmap.setPixelColor(p.x, p.y, DiscardColor);
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uint w = bitmap.getWidth();
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uint h = bitmap.getHeight();
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// put adjacent pixels in queue to process later
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if (p.y > 0) points.push_back(p + Up);
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if (p.y < h-1) points.push_back(p + Down);
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if (p.x > 0) points.push_back(p + Left);
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if (p.x < w-1) points.push_back(p + Right);
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}
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else if (c == NLMISC::CRGBA::Black)
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{
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// black is used for vertices
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// increase them by border width
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for (sint y = -width; y <= width; ++y)
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{
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for (sint x = -width; x <= width; ++x)
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{
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bitmap.setPixelColor(p.x + x, p.y + y, KeepColor);
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}
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}
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}
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return true;
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}
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void drawEdge(NLMISC::CBitmap &bitmap, const CObject &object, const CFace &face, uint index0, uint index1)
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{
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NLMISC::CUV uv0 = object.textureCoords[face.indices[index0]];
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NLMISC::CUV uv1 = object.textureCoords[face.indices[index1]];
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std::vector<std::pair<sint, sint> > pixels;
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// draw the triangle with vertices UV coordinates
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NLMISC::drawFullLine(uv0.U, uv0.V, uv1.U, uv1.V, pixels);
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// for each pixels, set them to black
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for (uint j = 0, jlen = pixels.size(); j < jlen; ++j)
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{
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bitmap.setPixelColor(pixels[j].first, pixels[j].second, NLMISC::CRGBA::Black);
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}
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}
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int main(int argc, char **argv)
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{
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NLMISC::CApplicationContext applicationContext;
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// Parse Command Line.
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//====================
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NLMISC::CCmdArgs args;
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args.setDescription("Textures tool");
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args.addArg("c", "colorize", "color", "Colorize textures using a color (in HTML hexdecimal format like #rrggbb)");
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args.addArg("f", "fill", "color or image", "Fill background part with color or image");
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args.addArg("u", "uvmap", "", "Generate a UV Map texture from OBJ file");
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args.addArg("w", "width", "width of border", "Width of the border to fill (default 0)");
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args.addArg("s", "size", "size of output bitmap", "Width and height of generated bitmap (default 4096)");
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args.addArg("b", "background", "background color", "Color to use to fill background");
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args.addArg("o", "output", "filename", "Output filename");
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args.addAdditionalArg("filename", "File to process", true, true);
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if (!args.parse(argc, argv)) return 1;
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std::string filename = args.getAdditionalArg("filename").front();
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std::string output = args.haveArg("o") ? args.getArg("o").front() : "";
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if (args.haveArg("s"))
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{
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// size of generated bitmap
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NLMISC::fromString(args.getArg("s").front(), TextureSize);
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}
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if (args.haveArg("c"))
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{
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// colorize
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NLMISC::CIFile file;
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NLMISC::CRGBA color;
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color.fromString(args.getArg("c").front());
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if (file.open(filename))
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{
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NLMISC::CBitmap bitmap;
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if (bitmap.load(file))
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{
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NLMISC::CObjectVector<uint8> &pixels = bitmap.getPixels();
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NLMISC::CRGBA *pRGBA = (NLMISC::CRGBA*)&pixels[0];
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uint32 size = bitmap.getSize();
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for (uint j = 0; j < size; ++j)
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{
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pRGBA->modulateFromColorRGBOnly(*pRGBA, color);
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++pRGBA;
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}
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NLMISC::COFile out;
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if (out.open(output))
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{
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bitmap.writePNG(out, 24);
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}
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}
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}
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}
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if (args.haveArg("f"))
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{
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// fill areas in a bitmap with another texture or color
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// for example :
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// textures_tool -f normal.png -w 2 -b #000000 uvmap.png -o test_normal.png
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// will use a copy 1024x1024 texture map on a 4096x4096 UV Map preserving the different areas
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std::string foregroundColorOrFilename = args.getArg("f").front();
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NLMISC::CRGBA foregroundColor = NLMISC::CRGBA::Black, backgroundColor = NLMISC::CRGBA::Black;
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NLMISC::CBitmap textureBitmap;
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bool useTexture = false;
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// f parameter is required
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if (NLMISC::CFile::fileExists(foregroundColorOrFilename))
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{
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// load texture
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NLMISC::CIFile textureFile;
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if (!textureFile.open(foregroundColorOrFilename))
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{
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nlwarning("Unable to open %s", foregroundColorOrFilename.c_str());
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return 1;
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}
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// decode texture
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if (!textureBitmap.load(textureFile))
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{
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nlwarning("Unable to decode %s", foregroundColorOrFilename.c_str());
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return 1;
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}
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useTexture = true;
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}
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else
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{
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// parse color from argument
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foregroundColor.fromString(foregroundColorOrFilename);
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}
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if (args.haveArg("b"))
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{
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// parse HTML color from argument
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backgroundColor.fromString(args.getArg("b").front());
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}
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sint width = 0;
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if (args.haveArg("w"))
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{
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// parse width of borders
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NLMISC::fromString(args.getArg("w").front(), width);
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}
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// load bitmap
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NLMISC::CIFile file;
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if (!file.open(filename))
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{
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nlwarning("Unable to open %s", filename.c_str());
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return 1;
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}
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// decode bitmap
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NLMISC::CBitmap inBitmap;
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if (!inBitmap.load(file))
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{
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nlwarning("Unable to decode %s", filename.c_str());
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return 1;
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}
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CPoints Points;
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// we can't have more than width * height points, so allocate memory for all of them
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Points.reserve(inBitmap.getWidth() * inBitmap.getHeight());
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// first point to process
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Points.push_back(CPoint(0, 0));
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// process all points from 0, 0
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while(fillPoint(inBitmap, width, Points)) { }
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// create a new bitmap for output
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NLMISC::CBitmap outBitmap;
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outBitmap.resize(inBitmap.getWidth(), inBitmap.getHeight());
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// copy points colors to new bitmap
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for (sint y = 0, h = inBitmap.getHeight(); y < h; ++y)
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{
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for (sint x = 0, w = inBitmap.getWidth(); x < w; ++x)
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{
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if (inBitmap.getPixelColor(x, y) != DiscardColor)
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{
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// we copy this point, repeat texture image if using it
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outBitmap.setPixelColor(x, y, useTexture ? textureBitmap.getPixelColor(x % textureBitmap.getWidth(), y % textureBitmap.getHeight()) : foregroundColor);
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}
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else
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{
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// put a background color
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outBitmap.setPixelColor(x, y, backgroundColor);
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}
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}
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}
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// save output bitmap
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NLMISC::COFile outFile;
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if (outFile.open(output))
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{
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outBitmap.writePNG(outFile, 24);
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}
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}
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if (args.haveArg("u"))
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{
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NLMISC::CIFile objFile;
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if (!objFile.open(filename))
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{
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nlwarning("Unable to open %s", filename.c_str());
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return 1;
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}
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CObject object;
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char buffer[1024];
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while (!objFile.eof())
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{
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objFile.getline(buffer, 1024);
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buffer[1023] = '\0';
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std::string line(buffer);
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if (line.size() > 1022)
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{
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nlwarning("More than 1022 bytes on a line!");
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return 1;
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}
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if (line.size() < 3) continue;
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// texture coordinate
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if (line.substr(0, 3) == "vt ")
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{
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// vertex texture
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std::vector<std::string> tokens;
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NLMISC::explode(line, std::string(" "), tokens);
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if (tokens.size() == 3)
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{
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float u, v;
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NLMISC::fromString(tokens[1], u);
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NLMISC::fromString(tokens[2], v);
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// V coordinates are inverted
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object.textureCoords.push_back(NLMISC::CUV(u * (float)TextureSize, (1.f - v) * (float)TextureSize));
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}
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else
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{
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nlwarning("Not 3 arguments for VT");
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}
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}
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else if (line.substr(0, 2) == "f ")
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{
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// face
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std::vector<std::string> tokens;
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NLMISC::explode(line, std::string(" "), tokens);
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CFace face;
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face.indices.resize(tokens.size()-1);
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bool faceValid = true;
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for (uint i = 1, ilen = tokens.size(); i < ilen; ++i)
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{
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std::vector<std::string> tokens2;
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NLMISC::explode(tokens[i], std::string("/"), tokens2);
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if (tokens2.size() == 3)
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{
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if (NLMISC::fromString(tokens2[1], face.indices[i - 1]))
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{
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// we want indices start from 0 instead of 1
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--face.indices[i - 1];
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}
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else
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{
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faceValid = false;
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}
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}
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else
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{
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nlwarning("Not 3 arguments for indices");
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}
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}
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if (faceValid) object.faces.push_back(face);
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}
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else if (line.substr(0, 2) == "o ")
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{
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// object
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object.name = line.substr(2);
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object.display();
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}
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}
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object.display();
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objFile.close();
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// draw UV Map
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// create a new bitmap for output
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NLMISC::CBitmap outBitmap;
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outBitmap.resize(TextureSize, TextureSize);
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// white background
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memset(&outBitmap.getPixels()[0], 255, TextureSize * TextureSize * 4);
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// process all faces
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for (uint i = 0, ilen = object.faces.size(); i < ilen; ++i)
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{
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const CFace &face = object.faces[i];
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// pixels of a face
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for (uint k = 1, klen = face.indices.size(); k < klen; ++k)
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{
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drawEdge(outBitmap, object, face, k - 1, k);
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}
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// link last and fist pixels
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drawEdge(outBitmap, object, face, face.indices.size()-1, 0);
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}
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// save output bitmap
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NLMISC::COFile outFile;
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if (outFile.open(output))
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{
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outBitmap.writePNG(outFile, 24);
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}
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}
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return 0;
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}
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