mirror of
https://github.com/Relintai/pandemonium_engine.git
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110 lines
4.0 KiB
C++
110 lines
4.0 KiB
C++
/*************************************************************************/
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/* image_indexer.cpp */
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/*************************************************************************/
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/* This file is part of: */
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/* PANDEMONIUM ENGINE */
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/* https://github.com/Relintai/pandemonium_engine */
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/*************************************************************************/
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/* Copyright (c) 2022-present Péter Magyar. */
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/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */
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/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in 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, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#include "image_indexer.h"
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PoolColorArray ImageIndexer::get_colors() {
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return _colors;
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}
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PoolIntArray ImageIndexer::index_image(Ref<Image> image) {
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ERR_FAIL_COND_V(!image.is_valid(), PoolIntArray());
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image->lock();
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int w = image->get_width();
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int h = image->get_height();
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PoolIntArray color_indices;
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color_indices.resize(w * h);
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PoolIntArray::Write wci = color_indices.write();
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int *wi = wci.ptr();
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for (int x = 0; x < w; ++x) {
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for (int y = 0; y < h; ++y) {
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Color c = image->get_pixel(x, y);
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int color_index = 0;
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if (!_col_map.lookup(c, color_index)) {
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color_index = _colors.size();
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_colors.push_back(c);
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_col_map.set(c, color_index);
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}
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wi[y * w + x] = color_index;
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}
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}
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wci.release();
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image->unlock();
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return color_indices;
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}
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void ImageIndexer::reset() {
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_colors.resize(0);
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_col_map.clear();
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}
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PoolByteArray ImageIndexer::indices_to_argb8_data(const PoolIntArray &indices) {
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PoolByteArray arr;
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arr.resize(indices.size() * 4);
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PoolByteArray::Write arrw = arr.write();
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PoolIntArray::Read indr = indices.read();
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int s = indices.size();
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for (int i = 0; i < s; ++i) {
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int arrind = i * 4;
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Color c = _colors[indr[i]];
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arrw[arrind] = static_cast<uint8_t>(c.r * 255);
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arrw[arrind + 1] = static_cast<uint8_t>(c.g * 255);
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arrw[arrind + 2] = static_cast<uint8_t>(c.b * 255);
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arrw[arrind + 3] = static_cast<uint8_t>(c.a * 255);
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}
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return arr;
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}
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ImageIndexer::ImageIndexer() {
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}
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ImageIndexer::~ImageIndexer() {
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}
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void ImageIndexer::_bind_methods() {
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ClassDB::bind_method(D_METHOD("get_colors"), &ImageIndexer::get_colors);
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ClassDB::bind_method(D_METHOD("index_image", "image"), &ImageIndexer::index_image);
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ClassDB::bind_method(D_METHOD("reset"), &ImageIndexer::reset);
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ClassDB::bind_method(D_METHOD("indices_to_argb8_data", "indices"), &ImageIndexer::indices_to_argb8_data);
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}
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