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_decode.cpp | 95 ------------------------------------------------------ 1 file changed, 95 deletions(-) delete mode 100644 example_decode.cpp (limited to 'example_decode.cpp') diff --git a/example_decode.cpp b/example_decode.cpp deleted file mode 100644 index 4eee6b8..0000000 --- a/example_decode.cpp +++ /dev/null @@ -1,95 +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 decode a PNG from a file to RGBA pixel data (and 2 in-memory ways). -*/ - -//g++ lodepng.cpp example_decode.cpp -ansi -pedantic -Wall -Wextra -O3 - - -//Example 1 -//Decode from disk to raw pixels with a single function call -void decodeOneStep(const char* filename) -{ - std::vector image; //the raw pixels - unsigned width, height; - - //decode - unsigned error = lodepng::decode(image, width, height, filename); - - //if there's an error, display it - if(error) std::cout << "decoder error " << error << ": " << lodepng_error_text(error) << std::endl; - - //the pixels are now in the vector "image", 4 bytes per pixel, ordered RGBARGBA..., use it as texture, draw it, ... -} - -//Example 2 -//Load PNG file from disk to memory first, then decode to raw pixels in memory. -void decodeTwoSteps(const char* filename) -{ - std::vector png; - std::vector image; //the raw pixels - unsigned width, height; - - //load and decode - lodepng::load_file(png, filename); - unsigned error = lodepng::decode(image, width, height, png); - - //if there's an error, display it - if(error) std::cout << "decoder error " << error << ": " << lodepng_error_text(error) << std::endl; - - //the pixels are now in the vector "image", 4 bytes per pixel, ordered RGBARGBA..., use it as texture, draw it, ... -} - -//Example 3 -//Load PNG file from disk using a State, normally needed for more advanced usage. -void decodeWithState(const char* filename) -{ - std::vector png; - std::vector image; //the raw pixels - unsigned width, height; - lodepng::State state; //optionally customize this one - - lodepng::load_file(png, filename); //load the image file with given filename - unsigned error = lodepng::decode(image, width, height, state, png); - - //if there's an error, display it - if(error) std::cout << "decoder error " << error << ": "<< lodepng_error_text(error) << std::endl; - - //the pixels are now in the vector "image", 4 bytes per pixel, ordered RGBARGBA..., use it as texture, draw it, ... - //State state contains extra information about the PNG such as text chunks, ... -} - -int main(int argc, char *argv[]) -{ - const char* filename = argc > 1 ? argv[1] : "test.png"; - - decodeOneStep(filename); -} - -- cgit v1.2.3