From de850676e79da39aec6f1ce0400cfa94cecbd744 Mon Sep 17 00:00:00 2001
From: mattkae <mattkae@protonmail.com>
Date: Sun, 19 Sep 2021 16:32:15 -0400
Subject: First commit

---
 themes/WebglContext.h | 38 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)
 create mode 100644 themes/WebglContext.h

(limited to 'themes/WebglContext.h')

diff --git a/themes/WebglContext.h b/themes/WebglContext.h
new file mode 100644
index 0000000..cbbfbe9
--- /dev/null
+++ b/themes/WebglContext.h
@@ -0,0 +1,38 @@
+#pragma once
+#include "types.h"
+#include <emscripten.h>
+#include <emscripten/html5.h>
+#include <GLES2/gl2.h>
+#include <EGL/egl.h>
+
+struct WebglContext {
+	EMSCRIPTEN_WEBGL_CONTEXT_HANDLE context;
+	int width = 800;
+	int height = 600;
+
+	void init(const char* query, int inWidth = 800, int inHeight = 600) {
+		width = inWidth;
+		height = inHeight;
+		emscripten_set_canvas_element_size( query, width, height);
+		
+		EmscriptenWebGLContextAttributes attrs;
+		emscripten_webgl_init_context_attributes(&attrs);
+
+		attrs.enableExtensionsByDefault = 1;
+		attrs.majorVersion = 3;
+		attrs.minorVersion = 0;
+
+		context = emscripten_webgl_create_context(query, &attrs);
+		makeCurrentContext();
+
+		glClearColor(0, 0, 0, 0.0f);
+	};
+	
+	void makeCurrentContext() {
+		emscripten_webgl_make_context_current(context);
+	};
+	
+	void destroy() {
+		emscripten_webgl_destroy_context(context);
+	}
+};
-- 
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