From bf2aa0a46fc8c1d398604cd384bc2c583774cc1f Mon Sep 17 00:00:00 2001 From: Lode Date: Mon, 16 Feb 2015 22:55:55 +0100 Subject: move examples to examples directory --- example_encode.cpp | 97 ------------------------------------------------------ 1 file changed, 97 deletions(-) delete mode 100644 example_encode.cpp (limited to 'example_encode.cpp') diff --git a/example_encode.cpp b/example_encode.cpp deleted file mode 100644 index 31dd0b8..0000000 --- a/example_encode.cpp +++ /dev/null @@ -1,97 +0,0 @@ -/* -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 - -/* -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! -*/ - -//g++ lodepng.cpp example_encode.cpp -ansi -pedantic -Wall -Wextra -O3 - -//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, std::vector& image, unsigned width, unsigned height) -{ - //Encode the image - unsigned error = lodepng::encode(filename, image, width, height); - - //if there's an error, display it - if(error) std::cout << "encoder error " << error << ": "<< lodepng_error_text(error) << std::endl; -} - -//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, std::vector& image, unsigned width, unsigned height) -{ - std::vector png; - - unsigned error = lodepng::encode(png, image, width, height); - if(!error) lodepng::save_file(png, filename); - - //if there's an error, display it - if(error) std::cout << "encoder error " << error << ": "<< lodepng_error_text(error) << std::endl; -} - -//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, std::vector& image, unsigned width, unsigned height) -{ - std::vector png; - lodepng::State state; //optionally customize this one - - unsigned error = lodepng::encode(png, image, width, height, state); - if(!error) lodepng::save_file(png, filename); - - //if there's an error, display it - if(error) std::cout << "encoder error " << error << ": "<< lodepng_error_text(error) << std::endl; -} - -//saves image to filename given as argument. Warning, this overwrites the file without warning! -int main(int argc, char *argv[]) -{ - //NOTE: this sample will overwrite the file or test.png without warning! - const char* filename = argc > 1 ? argv[1] : "test.png"; - - //generate some image - unsigned width = 512, height = 512; - std::vector image; - image.resize(width * height * 4); - for(unsigned y = 0; y < height; y++) - for(unsigned 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; - } - - encodeOneStep(filename, image, width, height); -} -- cgit v1.2.3