1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
|
#pragma once
#include <cache.h>
#include <filesystem>
#include <glArrays.h>
#include <glm/fwd.hpp>
// IWYU pragma: no_forward_declare Cache
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};
GLenum type {GL_TEXTURE_2D};
static GLint glMapMode(MapMode);
};
class 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 = {});
static Cache<Texture, std::filesystem::path> cachedTexture;
virtual void bind(GLenum unit = GL_TEXTURE0) const;
void save(const char * path) const;
static void save(const glTexture &, const char * path);
static void saveDepth(const glTexture &, const char * path);
static void saveNormal(const glTexture &, const char * path);
protected:
static void save(const glTexture &, GLenum, GLenum, uint8_t channels, const char * path, uint8_t tgaFormat);
static glm::ivec2 getSize(const glTexture &);
glTexture m_texture;
GLenum type;
};
class TextureAtlas : public Texture {
public:
TextureAtlas(GLsizei width, GLsizei height, GLuint count);
void bind(GLenum unit = GL_TEXTURE0) const override;
GLuint add(glm::ivec2 position, glm::ivec2 size, void * data, TextureOptions = {});
private:
glTexture m_atlas;
GLuint used {};
};
|
