Expose OpenGL extensions (#2379)

Author: einarf

arcade/gl/context.py

@@ -311,6 +311,21 @@ def info(self) -> GLInfo:
         """
         return self._info
 
+    @property
+    def extensions(self) -> set[str]:
+        """
+        Get a set of supported OpenGL extensions strings for this context.
+
+        This can be used to check if a specific extension is supported::
+
+            # Check if bindless textures are supported
+            "GL_ARB_bindless_texture" in ctx.extensions
+            # Check for multiple extensions
+            expected_extensions = {"GL_ARB_bindless_texture", "GL_ARB_get_program_binary"}
+            ctx.extensions & expected_extensions == expected_extensions
+        """
+        return gl.gl_info.get_extensions()
+
     @property
     def stats(self) -> ContextStats:
         """

tests/unit/gl/test_opengl_context.py

@@ -21,6 +21,11 @@ def test_ctx(ctx):
     assert ctx.blend_func == ctx.BLEND_PREMULTIPLIED_ALPHA
 
 
+def test_extensions(ctx):
+    assert isinstance(ctx.extensions, set)
+    assert len(ctx.extensions) > 0
+
+
 def test_viewport(ctx):
     vp = 0, 0, 100, 100
     ctx.viewport = vp