💿🐜 Antkeeper source code
https://antkeeper.com
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69 lines
2.0 KiB
69 lines
2.0 KiB
/*
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* Copyright (C) 2020 Christopher J. Howard
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*
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* This file is part of Antkeeper source code.
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*
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* Antkeeper source code is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Antkeeper source code is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Antkeeper source code. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "resources/resource-loader.hpp"
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#include "resources/image.hpp"
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#include "rasterizer/pixel-type.hpp"
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#include "rasterizer/pixel-format.hpp"
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#include "rasterizer/texture-2d.hpp"
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#include <sstream>
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template <>
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texture_2d* resource_loader<texture_2d>::load(resource_manager* resource_manager, PHYSFS_File* file)
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{
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// Load image
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::image* image = resource_loader<::image>::load(resource_manager, file);
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// Determine pixel type
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pixel_type type = (image->is_hdr()) ? pixel_type::float_32 : pixel_type::uint_8;
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// Determine pixel format
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pixel_format format;
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if (image->get_channels() == 1)
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{
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format = pixel_format::r;
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}
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else if (image->get_channels() == 2)
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{
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format = pixel_format::rg;
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}
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else if (image->get_channels() == 3)
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{
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format = pixel_format::rgb;
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}
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else if (image->get_channels() == 4)
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{
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format = pixel_format::rgba;
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}
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else
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{
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std::stringstream stream;
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stream << std::string("Texture cannot be created from an image with an unsupported number of color channels (") << image->get_channels() << std::string(").");
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delete image;
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throw std::runtime_error(stream.str().c_str());
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}
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// Create texture
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texture_2d* texture = new texture_2d(image->get_width(), image->get_height(), type, format, image->get_pixels());
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// Free loaded image
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delete image;
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return texture;
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}
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