glw/texture_array.h
2025-06-03 14:29:27 -04:00

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3.7 KiB
C++
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// =====================================================================================================================
// glw, an open-source library that wraps OpenGL structures into classes.
// Copyright (C) 2024 Medusa Slockbower
//
// This program 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.
//
// This program 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 this program. If not, see <https://www.gnu.org/licenses/>.
// =====================================================================================================================
#ifndef GLW_TEXTURE_ARRAY_H
#define GLW_TEXTURE_ARRAY_H
#include "common.h"
#include "texture.h"
namespace glw
{
template<enum_t T_, enum_t...Fs_>
class texarray
{
// Constants ===========================================================================================================
public:
inline static constexpr enum_t type = T_;
inline static constexpr size_t length = sizeof...(Fs_);
private:
using array_type = std::tuple<texture<T_, Fs_>...>;
// Functions ===========================================================================================================
// Helpers
template<int I = 0> void resize_(size_t size) { get<I>().resize(size); if constexpr (I < length - 1) resize_<I + 1>(size); }
template<int I = 0> void resize_(glm::ivec2 size) { get<I>().resize(size); if constexpr (I < length - 1) resize_<I + 1>(size); }
template<int I = 0> void resize_(glm::ivec2 size, size_t samples) { get<I>().resize(size); if constexpr (I < length - 1) resize_<I + 1>(size, samples); }
template<int I = 0> void resize_(glm::ivec3 size) { get<I>().resize(size); if constexpr (I < length - 1) resize_<I + 1>(size); }
template<int I = 0> void resize_(glm::ivec3 size, size_t samples) { get<I>().resize(size); if constexpr (I < length - 1) resize_<I + 1>(size, samples); }
public:
texarray(size_t size) : array_(texture<T_, Fs_>{ size }...) { }
texarray(glm::ivec2 size) : array_(texture<T_, Fs_>{ size }...) { }
texarray(glm::ivec2 size, size_t samples) : array_(texture<T_, Fs_>{ size, samples }...) { }
texarray(glm::ivec3 size) : array_(texture<T_, Fs_>{ size }...) { }
texarray(glm::ivec3 size, size_t samples) : array_(texture<T_, Fs_>{ size, samples }...) { }
void resize(size_t size) { resize_(size); }
void resize(glm::ivec2 size) { resize_(size); }
void resize(glm::ivec2 size, size_t samples) { resize_(size, samples); }
void resize(glm::ivec3 size) { resize_(size); }
void resize(glm::ivec3 size, size_t samples) { resize_(size, samples); }
// Variables ===========================================================================================================
template <size_t _Index>
constexpr std::tuple_element_t<_Index, array_type>& get() noexcept
{
return std::get<_Index>(array_);
}
template <size_t _Index>
constexpr const std::tuple_element_t<_Index, array_type>& get() const noexcept
{
return std::get<_Index>(array_);
}
private:
array_type array_;
};
}
#endif //TEXTURE_ARRAY_H