GLEnv.h File Reference

Cross‑platform OpenGL window/context helper for desktop and Emscripten. More...

#include <memory>
#include <string>
#include <chrono>
#include <GL/glew.h>
#include <GLFW/glfw3.h>
#include "GLDebug.h"

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Classes
class	GLEnv
	Window/context manager for OpenGL (GLFW+GLEW) or WebGL (Emscripten). More...

Enumerations
enum class	GLDataType { BYTE , HALF , FLOAT }
	Element type selector for texture uploads/allocations. More...
enum class	GLDepthDataType { DEPTH16 , DEPTH24 , DEPTH32 }
	Depth storage selection for depth textures. More...
enum class	CursorMode { NORMAL , HIDDEN , FIXED }
	Mouse cursor behavior modes. More...

Detailed Description

Cross‑platform OpenGL window/context helper for desktop and Emscripten.

Provides a minimal environment wrapper that creates and manages an OpenGL context and window/canvas, exposes dimensions, vsync, FPS counter, and basic input callback wiring. On desktop it uses GLFW (+**GLEW** initialization); on the web it uses Emscripten WebGL APIs.

Key features:

• Creation of an OpenGL (or WebGL) context with configurable version and profile (GLEnv::GLEnv).
• Event callback registration for keyboard, mouse, and resize.
• Frame lifecycle utilities: endOfFrame() swaps buffers/polls events and updates an optional FPS counter in the window title.
• Dimension queries (getFramebufferSize(), getWindowSize()).
• VSync control (setSync(), getSync()).
• Simple cursor mode handling via setCursorMode().

All GL error handling uses the utilities declared in GLDebug.h.

Enumeration Type Documentation

CursorMode

enum class CursorMode

strong

Mouse cursor behavior modes.

Enumerator
NORMAL
HIDDEN
FIXED

GLDataType

enum class GLDataType

strong

Element type selector for texture uploads/allocations.

Enumerator
BYTE
HALF
FLOAT

GLDepthDataType

enum class GLDepthDataType

strong

Depth storage selection for depth textures.

Enumerator
DEPTH16
DEPTH24
DEPTH32