staging some future refactoring, .h -> hpp, fix for rendering w/ audio

src/resource/texture.hpp

@@ -0,0 +1,46 @@
+#pragma once
+
+#include <filesystem>
+#include <vector>
+
+#include <glad/glad.h>
+#include <glm/glm.hpp>
+
+namespace anm2ed::resource::texture
+{
+  constexpr auto CHANNELS = 4;
+}
+
+namespace anm2ed::resource
+{
+  class Texture
+  {
+  public:
+    GLuint id{};
+    glm::ivec2 size{};
+    GLint filter = GL_NEAREST;
+    int channels{};
+    std::vector<uint8_t> pixels{};
+
+    bool is_valid() const;
+    size_t pixel_size_get() const;
+    void upload();
+    void upload(const uint8_t*);
+    glm::vec4 pixel_read(glm::vec2) const;
+
+    Texture();
+    ~Texture();
+    Texture(const Texture&);
+    Texture(Texture&&);
+    Texture& operator=(const Texture&);
+    Texture& operator=(Texture&&);
+    Texture(const uint8_t*, glm::ivec2);
+    Texture(const char*, size_t, glm::ivec2);
+    Texture(const std::filesystem::path&);
+    bool write_png(const std::filesystem::path&);
+    static bool write_pixels_png(const std::filesystem::path&, glm::ivec2, const uint8_t*);
+    static Texture merge_append(const Texture&, const Texture&, bool);
+    void pixel_set(glm::ivec2, glm::vec4);
+    void pixel_line(glm::ivec2, glm::ivec2, glm::vec4);
+  };
+}