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#pragma once
#include "config/types.h"
#include "gfx/gl/glTexture.h"
#include "stdTypeDefs.h"
#include <filesystem>
#include <glm/fwd.hpp>
class Image;
struct TextureOptions {
enum class MapMode {
Repeat,
Clamp,
Mirror,
Decal,
};
MapMode wrapU {MapMode::Repeat}, wrapV {MapMode::Repeat};
GLint minFilter {GL_LINEAR}, magFilter {GL_LINEAR};
static GLint glMapMode(MapMode);
};
class Texture : public StdTypeDefs<Texture> {
public:
virtual ~Texture() = default;
DEFAULT_MOVE_NO_COPY(Texture);
explicit Texture(const std::filesystem::path & fileName, TextureOptions = {});
explicit Texture(const Image & image, TextureOptions = {});
explicit Texture(GLsizei width, GLsizei height, TextureOptions = {});
explicit Texture(GLsizei width, GLsizei height, const void * data, TextureOptions = {});
virtual void bind(GLuint unit) const;
protected:
glTexture<GL_TEXTURE_2D> m_texture;
};
class TextureAtlas : public Texture {
public:
TextureAtlas(GLsizei width, GLsizei height, GLuint count);
void bind(GLuint unit) const override;
GLuint add(TextureAbsCoord position, TextureAbsCoord size, void * data, TextureOptions = {});
void complete();
private:
glTexture<GL_TEXTURE_RECTANGLE> m_atlas;
GLuint used {};
};
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