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- /*
- * Copyright (C) 2021 Christopher J. Howard
- *
- * This file is part of Antkeeper source code.
- *
- * Antkeeper source code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * Antkeeper source code is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Antkeeper source code. If not, see <http://www.gnu.org/licenses/>.
- */
-
- #include "resources/resource-loader.hpp"
- #include "resources/image.hpp"
- #include "rasterizer/pixel-type.hpp"
- #include "rasterizer/pixel-format.hpp"
- #include "rasterizer/texture-2d.hpp"
- #include <sstream>
-
- template <>
- texture_2d* resource_loader<texture_2d>::load(resource_manager* resource_manager, PHYSFS_File* file)
- {
- // Load image
- ::image* image = resource_loader<::image>::load(resource_manager, file);
-
- // Determine pixel type
- pixel_type type = (image->is_hdr()) ? pixel_type::float_32 : pixel_type::uint_8;
-
- // Determine pixel format
- pixel_format format;
- if (image->get_channels() == 1)
- {
- format = pixel_format::r;
- }
- else if (image->get_channels() == 2)
- {
- format = pixel_format::rg;
- }
- else if (image->get_channels() == 3)
- {
- format = pixel_format::rgb;
- }
- else if (image->get_channels() == 4)
- {
- format = pixel_format::rgba;
- }
- else
- {
- std::stringstream stream;
- stream << std::string("Texture cannot be created from an image with an unsupported number of color channels (") << image->get_channels() << std::string(").");
- delete image;
- throw std::runtime_error(stream.str().c_str());
- }
-
- // Assume linear color space
- ::color_space color_space = ::color_space::linear;
-
- // Create texture
- texture_2d* texture = new texture_2d(image->get_width(), image->get_height(), type, format, color_space, image->get_pixels());
-
- // Free loaded image
- delete image;
-
- return texture;
- }
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