// NeL - MMORPG Framework
// Copyright (C) 2010 Winch Gate Property Limited
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see .
#include "nel/misc/file.h"
#include "nel/misc/common.h"
#include "nel/misc/bitmap.h"
#include "nel/misc/path.h"
#include "nel/misc/cmd_args.h"
#include "nel/misc/vector_2d.h"
#include "nel/misc/uv.h"
#include "nel/misc/algo.h"
struct CPoint
{
CPoint(sint _x, sint _y) :x(_x), y(_y)
{
}
CPoint operator + (const CPoint &p) const
{
return CPoint(x + p.x, y + p.y);
}
sint x;
sint y;
};
const CPoint Up(0, -1);
const CPoint Down(0, 1);
const CPoint Left(-1, 0);
const CPoint Right(1, 0);
const uint TextureSize = 4096;
const NLMISC::CRGBA DiscardColor = NLMISC::CRGBA::Red;
const NLMISC::CRGBA KeepColor = NLMISC::CRGBA::Blue;
typedef std::vector CPoints;
struct CFace
{
static const uint INDICES_COUNT = 3;
uint indices[INDICES_COUNT];
};
bool fillPoint(NLMISC::CBitmap &bitmap, sint width, CPoints &points)
{
if (points.empty()) return false;
// take last point in queue
CPoint p(points.back());
points.pop_back();
NLMISC::CRGBA c = bitmap.getPixelColor(p.x, p.y);
if (c == NLMISC::CRGBA::White)
{
// white is used for background
// replace with color we want to discard
bitmap.setPixelColor(p.x, p.y, DiscardColor);
uint w = bitmap.getWidth();
uint h = bitmap.getHeight();
// put adjacent pixels in queue to process later
if (p.y > 0) points.push_back(p + Up);
if (p.y < h-1) points.push_back(p + Down);
if (p.x > 0) points.push_back(p + Left);
if (p.x < w-1) points.push_back(p + Right);
}
else if (c == NLMISC::CRGBA::Black)
{
// black is used for vertices
// increase them by border width
for (sint y = -width; y <= width; ++y)
{
for (sint x = -width; x <= width; ++x)
{
bitmap.setPixelColor(p.x + x, p.y + y, KeepColor);
}
}
}
return true;
}
int main(int argc, char **argv)
{
NLMISC::CApplicationContext applicationContext;
// Parse Command Line.
//====================
NLMISC::CCmdArgs args;
args.setDescription("Textures tool");
args.addArg("c", "colorize", "color", "Colorize textures using a color (in HTML hexdecimal format like #rrggbb)");
args.addArg("f", "fill", "color or image", "Fill background part with color or image");
args.addArg("u", "uvmap", "", "Generate a UV Map texture from OBJ file");
args.addArg("w", "width", "width of border", "Width of the border to fill (default 0)");
args.addArg("b", "background", "background color", "Color to use to fill background");
args.addArg("o", "output", "filename", "Output filename");
args.addAdditionalArg("filename", "File to process", true, true);
if (!args.parse(argc, argv)) return 1;
std::string filename = args.getAdditionalArg("filename").front();
std::string output = args.haveArg("o") ? args.getArg("o").front() : "";
if (args.haveArg("c"))
{
// colorize
NLMISC::CIFile file;
NLMISC::CRGBA color;
color.fromString(args.getArg("c").front());
if (file.open(filename))
{
NLMISC::CBitmap bitmap;
if (bitmap.load(file))
{
NLMISC::CObjectVector &pixels = bitmap.getPixels();
NLMISC::CRGBA *pRGBA = (NLMISC::CRGBA*)&pixels[0];
uint32 size = bitmap.getSize();
for (uint j = 0; j < size; ++j)
{
// TODO: find what computation do
// *(pRGBA++)-> = color;
}
NLMISC::COFile out;
if (out.open(output))
{
bitmap.writePNG(out, 24);
}
}
}
}
if (args.haveArg("f"))
{
// fill areas in a bitmap with another texture or color
// for example :
// textures_tool -f normal.png -w 2 -b #000000 uvmap.png -o test_normal.png
// will use a copy 1024x1024 texture map on a 4096x4096 UV Map preserving the different areas
std::string foregroundColorOrFilename = args.getArg("f").front();
NLMISC::CRGBA foregroundColor = NLMISC::CRGBA::Black, backgroundColor = NLMISC::CRGBA::Black;
NLMISC::CBitmap textureBitmap;
bool useTexture = false;
// f parameter is required
if (NLMISC::CFile::fileExists(foregroundColorOrFilename))
{
// load texture
NLMISC::CIFile textureFile;
if (!textureFile.open(foregroundColorOrFilename))
{
nlwarning("Unable to open %s", foregroundColorOrFilename.c_str());
return 1;
}
// decode texture
if (!textureBitmap.load(textureFile))
{
nlwarning("Unable to decode %s", foregroundColorOrFilename.c_str());
return 1;
}
useTexture = true;
}
else
{
// parse color from argument
foregroundColor.fromString(foregroundColorOrFilename);
}
if (args.haveArg("b"))
{
// parse HTML color from argument
backgroundColor.fromString(args.getArg("b").front());
}
sint width = 0;
if (args.haveArg("w"))
{
// parse width of borders
NLMISC::fromString(args.getArg("w").front(), width);
}
// load bitmap
NLMISC::CIFile file;
if (!file.open(filename))
{
nlwarning("Unable to open %s", filename.c_str());
return 1;
}
// decode bitmap
NLMISC::CBitmap inBitmap;
if (!inBitmap.load(file))
{
nlwarning("Unable to decode %s", filename.c_str());
return 1;
}
CPoints Points;
// we can't have more than width * height points, so allocate memory for all of them
Points.reserve(inBitmap.getWidth() * inBitmap.getHeight());
// first point to process
Points.push_back(CPoint(0, 0));
// process all points from 0, 0
while(fillPoint(inBitmap, width, Points)) { }
// create a new bitmap for output
NLMISC::CBitmap outBitmap;
outBitmap.resize(inBitmap.getWidth(), inBitmap.getHeight());
// copy points colors to new bitmap
for (sint y = 0, h = inBitmap.getHeight(); y < h; ++y)
{
for (sint x = 0, w = inBitmap.getWidth(); x < w; ++x)
{
if (inBitmap.getPixelColor(x, y) != DiscardColor)
{
// we copy this point, repeat texture image if using it
outBitmap.setPixelColor(x, y, useTexture ? textureBitmap.getPixelColor(x % textureBitmap.getWidth(), y % textureBitmap.getHeight()) : foregroundColor);
}
else
{
// put a background color
outBitmap.setPixelColor(x, y, backgroundColor);
}
}
}
// save output bitmap
NLMISC::COFile outFile;
if (outFile.open(output))
{
outBitmap.writePNG(outFile, 24);
}
}
if (args.haveArg("u"))
{
std::vector verticeTextureCoords;
std::vector faces;
NLMISC::CIFile objFile;
if (!objFile.open(filename))
{
nlwarning("Unable to open %s", filename.c_str());
return 1;
}
char buffer[1024];
while (!objFile.eof())
{
objFile.getline(buffer, 1024);
buffer[1023] = '\0';
std::string line(buffer);
if (line.size() < 3) continue;
// texture coordinate
if (line.substr(0, 3) == "vt ")
{
std::vector tokens;
NLMISC::explode(line, std::string(" "), tokens);
if (tokens.size() == 3)
{
float u, v;
NLMISC::fromString(tokens[1], u);
NLMISC::fromString(tokens[2], v);
// V coordinates are inverted
verticeTextureCoords.push_back(NLMISC::CUV(u * (float)TextureSize, (1.f - v) * (float)TextureSize));
}
else
{
nlwarning("Not 3 arguments for VT");
}
}
else if (line.substr(0, 2) == "f ")
{
std::vector tokens;
NLMISC::explode(line, std::string(" "), tokens);
if (tokens.size() == 4)
{
CFace face;
for (uint i = 1; i < 4; ++i)
{
std::vector tokens2;
NLMISC::explode(tokens[i], std::string("/"), tokens2);
if (tokens2.size() == 3)
{
NLMISC::fromString(tokens2[1], face.indices[i - 1]);
// we want indices start from 0 instead of 1
--face.indices[i - 1];
}
else
{
nlwarning("Not 3 arguments for indices");
}
}
faces.push_back(face);
}
else
{
nlwarning("Not 4 arguments for F");
}
}
}
nlinfo("OBJ file processed with %u vertices and %u faces", (uint)verticeTextureCoords.size(), (uint)faces.size());
objFile.close();
// draw UV Map
// create a new bitmap for output
NLMISC::CBitmap outBitmap;
outBitmap.resize(TextureSize, TextureSize);
// white background
memset(&outBitmap.getPixels()[0], 255, TextureSize * TextureSize * 4);
// process all faces
for (uint i = 0, len = faces.size(); i < len; ++i)
{
const CFace &face = faces[i];
// the 3 pixels of a vertice
NLMISC::CUV uv0 = verticeTextureCoords[face.indices[0]];
NLMISC::CUV uv1 = verticeTextureCoords[face.indices[1]];
NLMISC::CUV uv2 = verticeTextureCoords[face.indices[2]];
std::vector > pixels, temp;
// draw the triangle with vertices UV coordinates
NLMISC::drawFullLine(uv0.U, uv0.V, uv1.U, uv1.V, pixels);
// append pixels
NLMISC::drawFullLine(uv1.U, uv1.V, uv2.U, uv2.V, temp);
pixels.reserve(pixels.size() + temp.size());
pixels.insert(pixels.end(), temp.begin(), temp.end());
// append pixels
NLMISC::drawFullLine(uv2.U, uv2.V, uv0.U, uv0.V, temp);
pixels.reserve(pixels.size() + temp.size());
pixels.insert(pixels.end(), temp.begin(), temp.end());
// for each pixels, set them to black
for (uint j = 0, jlen = pixels.size(); j < jlen; ++j)
{
outBitmap.setPixelColor(pixels[j].first, pixels[j].second, NLMISC::CRGBA::Black);
}
}
// save output bitmap
NLMISC::COFile outFile;
if (outFile.open(output))
{
outBitmap.writePNG(outFile, 24);
}
}
return 0;
}