[nostalgia] Move much of the OpenGL code to glutils

src/nostalgia/glutils/glutils.hpp

@@ -9,6 +9,7 @@
 #pragma once
 
 #include <ox/std/defines.hpp>
+#include <ox/std/string.hpp>
 
 #define GL_GLEXT_PROTOTYPES 1
 #ifdef OX_OS_Darwin
@@ -21,9 +22,12 @@
 #endif
 
 #include <ox/std/error.hpp>
+#include <ox/std/vector.hpp>
 
 namespace nostalgia::glutils {
 
+constexpr auto GlslVersion = "#version 150";
+
 struct Empty {};
 
 struct TextureBase {
@@ -125,6 +129,8 @@ using GLVertexArray = GLObject<deleteVertexArray>;
  * and not its dependencies.
  */
 struct FrameBuffer {
+	int width = 0;
+	int height = 0;
 	GLFrameBuffer fbo;
 	GLTexture color;
 	GLRenderBuffer depth;
@@ -139,10 +145,28 @@ struct FrameBuffer {
 };
 
 
-[[nodiscard]]
 ox::Result<GLProgram> buildShaderProgram(const GLchar *vert, const GLchar *frag) noexcept;
 
+ox::Result<GLProgram> buildShaderProgram(const ox::String &vert, const ox::String &frag) noexcept;
+
+glutils::GLVertexArray generateVertexArrayObject() noexcept;
+
+glutils::GLBuffer generateBuffer() noexcept;
+
 [[nodiscard]]
 FrameBuffer generateFrameBuffer(int width, int height) noexcept;
 
-}
+struct BufferSet {
+	glutils::GLVertexArray vao;
+	glutils::GLBuffer vbo;
+	glutils::GLBuffer ebo;
+	glutils::GLTexture tex;
+	ox::Vector<float> vertices;
+	ox::Vector<GLuint> elements;
+};
+
+void sendVbo(const BufferSet &bg) noexcept;
+
+void sendEbo(const BufferSet &bg) noexcept;
+
+}