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4c80d783d6
* create stdext namespace which contains additional C++ algorithms * organize stdext in string, math, cast and exception utilities
106 lines
3.3 KiB
C++
106 lines
3.3 KiB
C++
/*
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* Copyright (c) 2010-2012 OTClient <https://github.com/edubart/otclient>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "image.h"
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#include <framework/core/resourcemanager.h>
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#include <framework/thirdparty/apngloader.h>
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Image::Image(const Size& size, int bpp, uint8 *pixels)
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{
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m_size = size;
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m_bpp = bpp;
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m_pixels.resize(size.area() * bpp);
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if(pixels)
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memcpy(&m_pixels[0], pixels, m_pixels.size());
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}
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ImagePtr Image::load(const std::string& file)
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{
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ImagePtr image;
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try {
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// currently only png images are supported
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if(!boost::ends_with(file, ".png"))
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stdext::throw_exception("image file format no supported");
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// load image file data
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image = loadPNG(file);
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} catch(stdext::exception& e) {
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logError("unable to load image '", file, "': ", e.what());
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}
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return image;
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}
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ImagePtr Image::loadPNG(const std::string& file)
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{
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std::stringstream fin;
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g_resources.loadFile(file, fin);
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ImagePtr image;
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apng_data apng;
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if(load_apng(fin, &apng) == 0) {
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image = ImagePtr(new Image(Size(apng.width, apng.height), apng.bpp, apng.pdata));
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free_apng(&apng);
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}
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return image;
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}
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void Image::overwriteMask(const Color& maskedColor, const Color& insideColor, const Color& outsideColor)
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{
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assert(m_bpp == 4);
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for(int p=0;p<getPixelCount();p++) {
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uint8& r = m_pixels[p*4 + 0];
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uint8& g = m_pixels[p*4 + 1];
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uint8& b = m_pixels[p*4 + 2];
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uint8& a = m_pixels[p*4 + 3];
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Color pixelColor(r,g,b,a);
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Color writeColor = (pixelColor == maskedColor) ? insideColor : outsideColor;
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r = writeColor.r();
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g = writeColor.g();
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b = writeColor.b();
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a = writeColor.a();
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}
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}
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void Image::append(const Point& dest, const ImagePtr& other)
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{
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if(!other)
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return;
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uint8* otherPixels = other->getPixelData();
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for(int p = 0; p < other->getPixelCount(); ++p) {
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int x = p % other->getWidth();
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int y = p / other->getWidth();
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int pos = ((dest.y + y) * m_size.width() + (dest.x + x)) * 4;
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if(otherPixels[p*4+3] == 0xFF) {
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m_pixels[pos+0] = otherPixels[p*4+0];
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m_pixels[pos+1] = otherPixels[p*4+1];
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m_pixels[pos+2] = otherPixels[p*4+2];
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m_pixels[pos+3] = otherPixels[p*4+3];
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}
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}
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}
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