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#pragma once
#include <algorithm> // IWYU pragma: keep
#include <array>
#include <cstddef>
#include <glad/gl.h>
#include <special_members.h>
#include <utility>
namespace Detail {
// NOLINTNEXTLINE(readability-identifier-naming)
class glNamed;
template<typename Named>
concept IsglNamed = sizeof(Named) == sizeof(GLuint) && std::is_base_of_v<Detail::glNamed, Named>;
}
template<Detail::IsglNamed, size_t, auto, auto>
// NOLINTNEXTLINE(readability-identifier-naming)
struct glManagedArray;
namespace Detail {
// NOLINTNEXTLINE(readability-identifier-naming)
class glNamed {
public:
glNamed() = default;
~glNamed() = default;
DEFAULT_MOVE_NO_COPY(glNamed);
GLuint
operator*() const noexcept
{
return name;
}
// NOLINTNEXTLINE(hicpp-explicit-conversions)
operator GLuint() const noexcept
{
return name;
}
protected:
GLuint name {};
template<Detail::IsglNamed, size_t, auto, auto> friend struct ::glManagedArray;
};
}
// NOLINTNEXTLINE(readability-identifier-naming)
template<Detail::IsglNamed Named, auto Gen, auto Del> struct glManagedSingle : public Named {
glManagedSingle() noexcept
{
(*Gen)(1, &this->name);
}
glManagedSingle(glManagedSingle && src) noexcept
{
this->name = std::exchange(src.name, 0);
}
~glManagedSingle() noexcept
{
if (this->name) {
(*Del)(1, &this->name);
}
}
NO_COPY(glManagedSingle);
glManagedSingle &
operator=(glManagedSingle && src) noexcept
{
if (this->name) {
(*Del)(1, &this->name);
}
this->name = std::exchange(src.name, 0);
return *this;
}
};
template<Detail::IsglNamed Named, size_t N, auto Gen, auto Del>
// NOLINTNEXTLINE(readability-identifier-naming)
struct glManagedArray : public std::array<Named, N> {
using Arr = std::array<Named, N>;
glManagedArray() noexcept
{
(*Gen)(N, &Arr::front().name);
}
glManagedArray(glManagedArray && src) noexcept
{
Arr::operator=(std::exchange(static_cast<Arr &>(src), {}));
}
~glManagedArray() noexcept
{
if (Arr::front().name) {
(*Del)(N, &Arr::front().name);
}
}
NO_COPY(glManagedArray);
glManagedArray &
operator=(glManagedArray && src) noexcept
{
if (Arr::front().name) {
(*Del)(N, &Arr::front().name);
}
Arr::operator=(std::exchange(static_cast<Arr &>(src), {}));
return *this;
}
[[nodiscard]] static constexpr size_t
size() noexcept
{
return N;
}
};
// NOLINTBEGIN(readability-identifier-naming)
template<size_t N> using glVertexArrays = glManagedArray<Detail::glNamed, N, &glGenVertexArrays, &glDeleteVertexArrays>;
using glVertexArray = glManagedSingle<Detail::glNamed, &glGenVertexArrays, &glDeleteVertexArrays>;
template<size_t N> using glBuffers = glManagedArray<Detail::glNamed, N, &glGenBuffers, &glDeleteBuffers>;
using glBuffer = glManagedSingle<Detail::glNamed, &glGenBuffers, &glDeleteBuffers>;
template<size_t N> using glTextures = glManagedArray<Detail::glNamed, N, &glGenTextures, &glDeleteTextures>;
using glTexture = glManagedSingle<Detail::glNamed, &glGenTextures, &glDeleteTextures>;
template<size_t N> using glFrameBuffers = glManagedArray<Detail::glNamed, N, &glGenFramebuffers, &glDeleteFramebuffers>;
using glFrameBuffer = glManagedSingle<Detail::glNamed, &glGenFramebuffers, &glDeleteFramebuffers>;
template<size_t N>
using glRenderBuffers = glManagedArray<Detail::glNamed, N, &glGenRenderbuffers, &glDeleteRenderbuffers>;
using glRenderBuffer = glManagedSingle<Detail::glNamed, &glGenRenderbuffers, &glDeleteRenderbuffers>;
// NOLINTEND(readability-identifier-naming)
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