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112 lines
4.5 KiB
C++
112 lines
4.5 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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/* http://www.godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2017 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 "os/os.h"
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#include "print_string.h"
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#include <ustring.h>
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void SVGRasterizer::rasterize(NSVGimage *p_image, float p_tx, float p_ty, float p_scale, unsigned char *p_dst, int p_w, int p_h, int p_stride) {
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nsvgRasterize(rasterizer, p_image, p_tx, p_ty, p_scale, p_dst, p_w, p_h, p_stride);
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}
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SVGRasterizer::SVGRasterizer() {
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rasterizer = nsvgCreateRasterizer();
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}
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SVGRasterizer::~SVGRasterizer() {
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nsvgDeleteRasterizer(rasterizer);
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}
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SVGRasterizer ImageLoaderSVG::rasterizer;
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Error ImageLoaderSVG::_create_image(Ref<Image> p_image, const PoolVector<uint8_t> *p_data, float p_scale, bool upsample) {
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NSVGimage *svg_image;
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PoolVector<uint8_t>::Read src_r = p_data->read();
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svg_image = nsvgParse((char *)src_r.ptr(), "px", 96);
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if (svg_image == NULL) {
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ERR_PRINT("SVG Corrupted");
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return ERR_FILE_CORRUPT;
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}
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float upscale = upsample ? 2.0 : 1.0;
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int w = (int)(svg_image->width * p_scale * upscale);
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int h = (int)(svg_image->height * p_scale * upscale);
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PoolVector<uint8_t> dst_image;
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dst_image.resize(w * h * 4);
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PoolVector<uint8_t>::Write dw = dst_image.write();
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rasterizer.rasterize(svg_image, 0, 0, p_scale * upscale, (unsigned char *)dw.ptr(), w, h, w * 4);
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dw = PoolVector<uint8_t>::Write();
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p_image->create(w, h, false, Image::FORMAT_RGBA8, dst_image);
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if (upsample)
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p_image->shrink_x2();
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nsvgDelete(svg_image);
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return OK;
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}
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Error ImageLoaderSVG::create_image_from_string(Ref<Image> p_image, const char *svg_str, float p_scale, bool upsample) {
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size_t str_len = strlen(svg_str);
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PoolVector<uint8_t> src_data;
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src_data.resize(str_len + 1);
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PoolVector<uint8_t>::Write src_w = src_data.write();
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memcpy(src_w.ptr(), svg_str, str_len + 1);
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return _create_image(p_image, &src_data, p_scale, upsample);
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}
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Error ImageLoaderSVG::load_image(Ref<Image> p_image, FileAccess *f, bool p_force_linear, float p_scale) {
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uint32_t size = f->get_len();
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PoolVector<uint8_t> src_image;
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src_image.resize(size + 1);
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PoolVector<uint8_t>::Write src_w = src_image.write();
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f->get_buffer(src_w.ptr(), size);
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src_w.ptr()[size] = '\0';
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return _create_image(p_image, &src_image, p_scale, 1.0);
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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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p_extensions->push_back("svgz");
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}
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ImageLoaderSVG::ImageLoaderSVG() {
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}
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