113 lines
2.3 KiB
C++
113 lines
2.3 KiB
C++
#pragma once
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#include <cassert>
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#include <memory>
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#include <utility>
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#include <GL/glew.h>
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#include "nf7.hh"
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#include "common/factory.hh"
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#include "common/future.hh"
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#include "common/mutex.hh"
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namespace nf7::gl {
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template <typename T>
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class Obj final {
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public:
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Obj() = delete;
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template <typename... Args>
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Obj(const std::shared_ptr<nf7::Context>& ctx, GLuint id, Args&&... args) noexcept :
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ctx_(ctx), meta_(std::forward<Args>(args)...), id_(id? id: meta_.Gen()) {
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}
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~Obj() noexcept {
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ctx_->env().ExecGL(ctx_, [id = id_]() { T::Delete(id); });
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}
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Obj(const Obj&) = delete;
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Obj(Obj&&) = delete;
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Obj& operator=(const Obj&) = delete;
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Obj& operator=(Obj&&) = delete;
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GLuint id() const noexcept { return id_; }
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T& meta() noexcept { return meta_; }
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const T& meta() const noexcept { return meta_; }
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private:
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std::shared_ptr<nf7::Context> ctx_;
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T meta_;
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const GLuint id_;
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};
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struct Obj_BufferMeta final {
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public:
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Obj_BufferMeta() = delete;
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Obj_BufferMeta(GLenum t) noexcept : type(t) {
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}
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const GLenum type;
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size_t size = 0;
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static GLuint Gen() noexcept {
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GLuint id;
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glGenBuffers(1, &id);
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return id;
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}
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static void Delete(GLuint id) noexcept {
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glDeleteBuffers(1, &id);
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}
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};
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using Buffer = Obj<Obj_BufferMeta>;
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using BufferFactory = AsyncFactory<nf7::Mutex::Resource<std::shared_ptr<Buffer>>>;
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struct Obj_TextureMeta final {
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public:
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Obj_TextureMeta() = delete;
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Obj_TextureMeta(GLenum t) noexcept : type(t) {
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}
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const GLenum type;
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GLint format = 0;
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uint32_t w = 0, h = 0, d = 0;
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static GLuint Gen() noexcept {
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GLuint id;
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glGenTextures(1, &id);
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return id;
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}
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static void Delete(GLuint id) noexcept {
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glDeleteTextures(1, &id);
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}
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};
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using Texture = Obj<Obj_TextureMeta>;
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using TextureFactory = AsyncFactory<nf7::Mutex::Resource<std::shared_ptr<Texture>>>;
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struct Obj_ShaderMeta final {
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public:
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Obj_ShaderMeta() = delete;
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Obj_ShaderMeta(GLenum t) noexcept : type(t) {
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}
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const GLenum type;
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GLuint Gen() noexcept {
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return glCreateShader(type);
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}
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static void Delete(GLuint id) noexcept {
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glDeleteShader(id);
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}
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};
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using Shader = Obj<Obj_ShaderMeta>;
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using ShaderFactory = AsyncFactory<nf7::Mutex::Resource<std::shared_ptr<Shader>>>;
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} // namespace nf7::gl
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