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// tiledAggCanvas.cpp
// Context Free
// ---------------------
// Copyright (C) 2012-2013 John Horigan - john@glyphic.com
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
//
// John Horigan can be contacted at john@glyphic.com or at
// John Horigan, 1209 Villa St., Mountain View, CA 94041-1123, USA
//
//
#include "abstractPngCanvas.h"
#include "tiledCanvas.h"
#include "makeCFfilename.h"
#include <string>
#include <iostream>
#include <algorithm>
#include "prettyint.h"
using std::cout;
using std::endl;
abstractPngCanvas::abstractPngCanvas(const char* outfilename, bool quiet, int width, int height,
aggCanvas::PixelFormat pixfmt, bool crop, int frameCount,
int variation, bool wallpaper, Renderer *r, int mx, int my)
: aggCanvas(pixfmt), mOutputFileName(outfilename), mFrameCount(frameCount),
mCurrentFrame(1), mVariation(variation), mPixelFormat(pixfmt),
mCrop(crop), mQuiet(quiet), mWallpaper(wallpaper), mRenderer(r), mFullWidth(width),
mFullHeight(height), mOriginX(0), mOriginY(0)
{
if (wallpaper) {
mWidth = r->m_width;
mHeight = r->m_height;
mFullWidth = width;
mFullHeight = height;
double scalex = static_cast<double>(width) / ( mWidth * mx);
double scaley = static_cast<double>(height) / (mHeight * my);
double scale = scalex < scaley ? scalex : scaley;
mWidth = static_cast<int>(mWidth * scale);
mHeight = static_cast<int>(mHeight * scale);
} else {
mWidth = width;
mHeight = height;
mFullWidth = mWidth * mx;
mFullHeight = mHeight * my;
}
mOriginX = (mFullWidth - mWidth) / 2;
mOriginY = (mFullHeight - mHeight) / 2;
int bpp = BytesPerPixel.at(mPixelFormat);
mStride = mFullWidth * bpp;
#ifdef _WIN32
mStride += ((-mStride) & 3);
#endif
mData = std::make_unique<unsigned char[]>(mStride * mFullHeight);
attach(mData.get() + mOriginY * mStride + mOriginX * bpp, mWidth, mHeight, mStride);
if (quiet) return;
cout << prettyInt(static_cast<unsigned long>(mFullWidth)) << "w x " <<
prettyInt(static_cast<unsigned long>(mFullHeight)) << "h pixel image." << endl;
cout << "Generating..." << endl;
}
abstractPngCanvas::~abstractPngCanvas() = default;
void
abstractPngCanvas::start(bool clear, const agg::rgba &bk, int width, int height)
{
if (!mFrameCount && !mQuiet)
cout << endl << "Rendering..." << endl;
aggCanvas::start(clear, bk, width, height);
}
void
abstractPngCanvas::end()
{
aggCanvas::end();
if (mRenderer && mRenderer->m_tiledCanvas) {
tileList points = mRenderer->m_tiledCanvas->getTessellation(mFullWidth, mFullHeight,
mOriginX, mOriginY, true);
std::reverse(points.begin(), points.end()); // could use reverse adapter
for (auto&& pt: points) {
if (pt.x != mOriginX || pt.y != mOriginY)
copyImageUnscaled(pt.x, pt.y);
}
}
std::string name = makeCFfilename(mOutputFileName, mCurrentFrame, mFrameCount,
mVariation);
if (mFrameCount) {
output(name.c_str(), mCurrentFrame++);
} else {
output(name.c_str());
}
}
void
abstractPngCanvas::copyImageUnscaled(int destx, int desty)
{
int bpp = BytesPerPixel.at(mPixelFormat);
destx *= bpp;
int srcx = mOriginX * bpp;
int srcy = mOriginY;
for (int y = 0; y < mHeight; ++y) {
if (y + desty < 0 || y + desty >= mFullHeight) continue;
for (int x = 0; x < mWidth * bpp; ++x) {
if (destx + x >= 0 && destx + x < mStride)
mData[(y + desty) * mStride + destx + x] = mData[(y + srcy) * mStride + srcx + x];
}
}
}
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