Robert Cranston authored on 29/12/2021 16:30:02
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new file mode 100644 |
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+#include <gltexturecubemap.hpp> |
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+ |
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+#include <ostream> |
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+ |
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+#include <globject.hpp> |
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+#include <gltexturend.hpp> |
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+ |
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+// NOLINTNEXTLINE |
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+#define STR_EXCEPTION GLObject<>::Exception |
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+#include <str.hpp> |
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+ |
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+ |
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+/// TGA |
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+ |
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+ |
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+GLTextureCubemap GLTextureCubemap::tga_read( |
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+ Paths const & paths, |
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+ GLenum format, |
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+ GLenum internal_format, |
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+ GLenum wrap, |
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+ GLenum min_filter, |
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+ GLenum mag_filter |
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+) |
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+try |
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+{
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+ check_cubemap_paths_(paths); |
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+ auto texture = GLTextureCubemap( |
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+ str_paths_(paths), |
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+ TGA::read(paths[0]).size(), |
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+ internal_format, |
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+ wrap, |
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+ min_filter, |
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+ mag_filter |
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+ ); |
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+ for (auto face = GLuint{0}; face < faces_; ++face)
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+ texture.data( |
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+ TGA::read(path_prefix_(paths[face], prefix())).data(), |
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+ GL_TEXTURE_CUBE_MAP_POSITIVE_X + face, |
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+ format |
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+ ); |
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+ return texture; |
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+} |
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+catch (...) |
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+{
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+ STR_THROW_NESTED( |
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+ "Failed to read GLTextureCubemap TGA " << str_paths_(paths) << ":" |
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+ ); |
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+} |
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+ |
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+ |
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+void GLTextureCubemap::tga_write( |
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+ Paths const & paths, |
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+ GLenum format |
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+) const |
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+try |
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+{
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+ check_cubemap_paths_(paths); |
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+ for (auto face = GLuint{0}; face < faces_; ++face)
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+ TGA(size(), data(GL_TEXTURE_CUBE_MAP_POSITIVE_X + face, format)) |
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+ .write(path_prefix_(paths[face], prefix())); |
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+} |
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+catch (...) |
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+{
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+ STR_THROW_NESTED( |
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+ "Failed to write GLTextureCubemap TGA " << str_paths_(paths) << ":" |
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+ ); |
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+} |
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+ |
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+ |
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+/// Check |
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+ |
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+ |
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+void GLTextureCubemap::check_cubemap_paths_(Paths const & paths) |
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+{
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+ if (paths.size() != faces_) |
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+ STR_THROW( |
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+ "Expected number of paths " << GLuint{faces_} << ", " <<
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+ "got " << paths.size() << "." |
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+ ); |
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+} |
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+ |
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+ |
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+void GLTextureCubemap::check_cubemap_size_() const |
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+{
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+ if (size()[0] != size()[1]) |
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+ STR_THROW( |
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+ "Expected size " << "to be square" << ", " << |
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+ "got " << str_size_(size()) << "." |
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+ ); |
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+} |
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