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diff --git a/example_encode.c b/example_encode.c
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-/*
-LodePNG Examples
-
-Copyright (c) 2005-2012 Lode Vandevenne
-
-This software is provided 'as-is', without any express or implied
-warranty. In no event will the authors be held liable for any damages
-arising from the use of this software.
-
-Permission is granted to anyone to use this software for any purpose,
-including commercial applications, and to alter it and redistribute it
-freely, subject to the following restrictions:
-
-    1. The origin of this software must not be misrepresented; you must not
-    claim that you wrote the original software. If you use this software
-    in a product, an acknowledgment in the product documentation would be
-    appreciated but is not required.
-
-    2. Altered source versions must be plainly marked as such, and must not be
-    misrepresented as being the original software.
-
-    3. This notice may not be removed or altered from any source
-    distribution.
-*/
-
-#include "lodepng.h"
-
-#include <stdio.h>
-#include <stdlib.h>
-
-/*
-3 ways to encode a PNG from RGBA pixel data to a file (and 2 in-memory ways).
-NOTE: this samples overwrite the file or test.png without warning!
-*/
-
-/*
-Example 1
-Encode from raw pixels to disk with a single function call
-The image argument has width * height RGBA pixels or width * height * 4 bytes
-*/
-void encodeOneStep(const char* filename, const unsigned char* image, unsigned width, unsigned height)
-{
-  /*Encode the image*/
-  unsigned error = lodepng_encode32_file(filename, image, width, height);
-
-  /*if there's an error, display it*/
-  if(error) printf("error %u: %s\n", error, lodepng_error_text(error));
-}
-
-/*
-Example 2
-Encode from raw pixels to an in-memory PNG file first, then write it to disk
-The image argument has width * height RGBA pixels or width * height * 4 bytes
-*/
-void encodeTwoSteps(const char* filename, const unsigned char* image, unsigned width, unsigned height)
-{
-  unsigned char* png;
-  size_t pngsize;
-
-  unsigned error = lodepng_encode32(&png, &pngsize, image, width, height);
-  if(!error) lodepng_save_file(png, pngsize, filename);
-
-  /*if there's an error, display it*/
-  if(error) printf("error %u: %s\n", error, lodepng_error_text(error));
-
-  free(png);
-}
-
-/*
-Example 3
-Save a PNG file to disk using a State, normally needed for more advanced usage.
-The image argument has width * height RGBA pixels or width * height * 4 bytes
-*/
-void encodeWithState(const char* filename, const unsigned char* image, unsigned width, unsigned height)
-{
-  unsigned error;
-  unsigned char* png;
-  size_t pngsize;
-  LodePNGState state;
-
-  lodepng_state_init(&state);
-  /*optionally customize the state*/
-
-  error = lodepng_encode(&png, &pngsize, image, width, height, &state);
-  if(!error) lodepng_save_file(png, pngsize, filename);
-
-  /*if there's an error, display it*/
-  if(error) printf("error %u: %s\n", error, lodepng_error_text(error));
-
-  lodepng_state_cleanup(&state);
-  free(png);
-}
-
-int main(int argc, char *argv[])
-{
-  const char* filename = argc > 1 ? argv[1] : "test.png";
-
-  /*generate some image*/
-  unsigned width = 512, height = 512;
-  unsigned char* image = malloc(width * height * 4);
-  unsigned x, y;
-  for(y = 0; y < height; y++)
-  for(x = 0; x < width; x++)
-  {
-    image[4 * width * y + 4 * x + 0] = 255 * !(x & y);
-    image[4 * width * y + 4 * x + 1] = x ^ y;
-    image[4 * width * y + 4 * x + 2] = x | y;
-    image[4 * width * y + 4 * x + 3] = 255;
-  }
-
-  /*run an example*/
-  encodeOneStep(filename, image, width, height);
-
-  free(image);
-  return 0;
-}