208 lines
8.2 KiB
C++
208 lines
8.2 KiB
C++
/*************************************************************************/
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/* image_loader_svg.cpp */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */
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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_loader_svg.h"
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#include "core/error/error_macros.h"
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#include "core/io/image_loader.h"
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#include "core/templates/local_vector.h"
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#include <stdint.h>
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#include <stdlib.h>
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#include <memory>
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#include "thirdparty/thorvg/inc/thorvg.h"
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ImageLoaderSVG::ConvertTVGColorsFunc ImageLoaderSVG::convert_tvg_color_func = ImageLoaderSVG::_convert_tvg_paints;
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void ImageLoaderSVG::set_convert_colors(Dictionary *p_replace_color) {
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// if (p_replace_color) {
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// Dictionary replace_color = *p_replace_color;
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// for (int i = 0; i < replace_color.keys().size(); i++) {
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// Variant o_c = replace_color.keys()[i];
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// Variant n_c = replace_color[replace_color.keys()[i]];
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// if (o_c.get_type() == Variant::COLOR && n_c.get_type() == Variant::COLOR) {
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// Color old_color = o_c;
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// Color new_color = n_c;
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// replace_colors.old_colors.push_back(old_color.to_abgr32());
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// replace_colors.new_colors.push_back(new_color.to_abgr32());
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// }
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// }
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// } else {
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// replace_colors.old_colors.clear();
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// replace_colors.new_colors.clear();
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// }
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}
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void ImageLoaderSVG::create_image_from_string(Ref<Image> p_image, String p_string, float p_scale, bool p_upsample, bool p_convert_color) {
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ERR_FAIL_COND(Math::is_zero_approx(p_scale));
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uint32_t bgColor = 0xffffffff;
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if (tvg::Initializer::init(tvg::CanvasEngine::Sw, 1) != tvg::Result::Success) {
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return;
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}
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std::unique_ptr<tvg::Picture> picture = tvg::Picture::gen();
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float fw, fh;
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CharString char_string = p_string.utf8();
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tvg::Result result = picture->load(char_string.get_data(), char_string.size(), "svg") ;
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if (result != tvg::Result::Success) {
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return;
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}
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picture->viewbox(nullptr, nullptr, &fw, &fh);
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uint32_t width = MIN(fw * p_scale, 16 * 1024);
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uint32_t height = MIN(fh * p_scale, 16 * 1024);
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picture->size(width, height);
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std::unique_ptr<tvg::SwCanvas> sw_canvas = tvg::SwCanvas::gen();
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uint32_t *buffer = (uint32_t *)malloc(sizeof(uint32_t) * width * height);
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tvg::Result res = sw_canvas->target(buffer, width, width, height, tvg::SwCanvas::ARGB8888_STRAIGHT);
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if (res != tvg::Result::Success) {
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return;
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}
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if (bgColor != 0xffffffff) {
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uint8_t bgColorR = (uint8_t)((bgColor & 0xff0000) >> 16);
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uint8_t bgColorG = (uint8_t)((bgColor & 0x00ff00) >> 8);
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uint8_t bgColorB = (uint8_t)((bgColor & 0x0000ff));
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std::unique_ptr<tvg::Shape> shape = tvg::Shape::gen();
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shape->appendRect(0, 0, width, height, 0, 0); //x, y, w, h, rx, ry
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shape->fill(bgColorR, bgColorG, bgColorB, 255); //r, g, b, a
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if (sw_canvas->push(move(shape)) != tvg::Result::Success) {
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return;
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}
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}
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// if (p_convert_color) {
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// std::unique_ptr<tvg::Accessor>
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// accessor = tvg::Accessor::gen();
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// picture = accessor->access(move(picture), convert_tvg_color_func);
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// }
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sw_canvas->push(move(picture));
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res = sw_canvas->draw();
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if (res != tvg::Result::Success) {
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ERR_PRINT("ImageLoaderSVG can't create image.");
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}
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res = sw_canvas->sync();
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if (res != tvg::Result::Success) {
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ERR_PRINT("ImageLoaderSVG can't create image.");
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}
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Vector<uint8_t> image;
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image.resize(width * height * sizeof(uint32_t));
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for (uint32_t y = 0; y < height; y++) {
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for (uint32_t x = 0; x < width; x++) {
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uint32_t n = buffer[y * width + x];
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image.write[sizeof(uint32_t) * width * y + sizeof(uint32_t) * x + 0] = (n >> 16) & 0xff;
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image.write[sizeof(uint32_t) * width * y + sizeof(uint32_t) * x + 1] = (n >> 8) & 0xff;
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image.write[sizeof(uint32_t) * width * y + sizeof(uint32_t) * x + 2] = n & 0xff;
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image.write[sizeof(uint32_t) * width * y + sizeof(uint32_t) * x + 3] = (n >> 24) & 0xff;
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}
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}
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free(buffer);
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p_image->create(width, height, false, Image::FORMAT_RGBA8, image);
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}
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void ImageLoaderSVG::get_recognized_extensions(List<String> *p_extensions) const {
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p_extensions->push_back("svg");
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}
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Error ImageLoaderSVG::load_image(Ref<Image> p_image, FileAccess *p_fileaccess, bool p_force_linear, float p_scale) {
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String svg = p_fileaccess->get_as_utf8_string();
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create_image_from_string(p_image, svg, p_scale, false, false);
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ERR_FAIL_COND_V(p_image->is_empty(), FAILED);
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if (p_force_linear) {
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p_image->srgb_to_linear();
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}
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return OK;
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}
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bool ImageLoaderSVG::_convert_tvg_paints(const tvg::Paint *p_paint) {
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// union ByteColor {
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// uint32_t i = 0;
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// uint8_t b[sizeof(float)];
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// };
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// if (p_paint->identifier() == tvg::Shape::identifier()) {
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// tvg::Shape *shape = (tvg::Shape *)p_paint;
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// uint8_t r = 0;
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// uint8_t g = 0;
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// uint8_t b = 0;
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// uint8_t a = 0;
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// shape->fillColor(&r, &g, &b, &a);
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// for (int i = 0; i < replace_colors.old_colors.size(); i++) {
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// ByteColor old_color = {};
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// old_color.b[0] = r;
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// old_color.b[1] = g;
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// old_color.b[2] = b;
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// old_color.b[3] = a;
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// ByteColor new_color = {};
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// new_color.i = replace_colors.new_colors[i];
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// ByteColor replace_color = {};
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// replace_color.i = replace_colors.new_colors[i];
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// if (new_color.i == old_color.i) {
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// shape->fill(replace_color.b[0], replace_color.b[1], replace_color.b[2],
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// replace_color.b[3]);
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// return true;
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// }
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// }
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// } else if (p_paint->identifier() == tvg::LinearGradient::identifier() || p_paint->identifier() == tvg::RadialGradient::identifier()) {
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// tvg::Shape *shape = (tvg::Shape *)p_paint;
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// if (tvg::Fill *fill = shape->fill()) {
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// tvg::Fill::ColorStop *colorStop;
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// uint32_t count = fill->colorStops(&colorStop);
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// for (int count_i = 0; count_i < count; ++count_i) {
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// tvg::Fill::ColorStop &p = colorStop[count_i];
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// for (int i = 0; i < replace_colors.old_colors.size(); i++) {
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// ByteColor old_color = {};
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// old_color.b[0] = p.r;
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// old_color.b[1] = p.g;
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// old_color.b[2] = p.b;
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// old_color.b[3] = p.a;
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// ByteColor new_color = {};
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// new_color.i = replace_colors.new_colors[i];
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// ByteColor replace_color = {};
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// replace_color.i = replace_colors.new_colors[i];
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// if (new_color.i == old_color.i) {
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// p.r = replace_color.b[0];
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// p.g = replace_color.b[1];
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// p.b = replace_color.b[2];
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// p.a = replace_color.b[3];
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// }
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// }
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// }
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// }
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// }
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return true;
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};
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