first working render!

1 files changed, 16 insertions, 0 deletions

diff --git a/src/debug_gl.zig b/src/debug_gl.zig
new file mode 100644
index 0000000..debf51d
--- /dev/null
+++ b/src/debug_gl.zig
@@ -0,0 +1,16 @@
+const c = @import("c.zig");
+const std = @import("std");
+const os = std.os;
+const panic = std.debug.panic;
+const builtin = @import("builtin");
+
+pub const is_on = if (builtin.mode == builtin.Mode.ReleaseFast) c.GL_FALSE else c.GL_TRUE;
+
+pub fn assertNoError() void {
+    if (builtin.mode != builtin.Mode.ReleaseFast) {
+        const err = c.glGetError();
+        if (err != c.GL_NO_ERROR) {
+            panic("GL error: {}\n", err);
+        }
+    }
+}