72 lines
2.4 KiB
C++
72 lines
2.4 KiB
C++
#pragma once
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/*
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MIT License
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Copyright (c) 2024 - 2025 tobid7
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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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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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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 THE
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SOFTWARE.
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*/
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#include <pd/core/core.hpp>
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#include <pd/image/pd_p_api.hpp>
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namespace PD {
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/**
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* Namepace containing functions to blur images
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*/
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namespace ImgBlur {
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/**
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* Function to create Gaussian Kernel List
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* @param radius Rasius to use
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* @param si sigma value to use
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* @return list of kernel values
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*/
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PD_IMAGE_API std::vector<float> GaussianKernel(int radius, float si);
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/**
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* Gaussian Blur for basic Image Buffer
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* @param buf Image Buffer (unsigned char)
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* @param w width of the image
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* @param h width of the image
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* @param radius Blur radius
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* @param si Blur sigma
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* @param idxfn Indexing function
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*/
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PD_IMAGE_API void GaussianBlur(
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std::vector<u8> &buf, int w, int h, float radius, float si,
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std::function<int(int, int, int)> idxfn = [](int x, int y, int w) -> int {
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return y * w + x;
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});
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/**
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* Advanced func to access memory directly
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* @param buf Referenvce to the buffer
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* @param w width of the image
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* @param h width of the image
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* @param bpp Bytes per Pixels (RGB[A], RGB565, etc)
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* @param radius Blur radius
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* @param si Blur sigma
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* @param idxfn Indexing function
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*/
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PD_IMAGE_API void GaussianBlur(
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void *buf, int w, int h, int bpp, float radius, float si,
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std::function<int(int, int, int)> idxfn = [](int x, int y, int w) -> int {
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return y * w + x;
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});
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} // namespace ImgBlur
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} // namespace PD
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