From 75558d144ca8c91ed5e87358d935b2c36eb29d7b Mon Sep 17 00:00:00 2001
From: HampusM <hampus@hampusmat.com>
Date: Sat, 18 Apr 2026 13:30:32 +0200
Subject: feat(opengl-bindings): add scissor testing

---
 opengl-bindings/Cargo.toml  |  3 ++-
 opengl-bindings/src/misc.rs | 28 ++++++++++++++++++++++++++++
 2 files changed, 30 insertions(+), 1 deletion(-)

diff --git a/opengl-bindings/Cargo.toml b/opengl-bindings/Cargo.toml
index b6eadba..ae51a34 100644
--- a/opengl-bindings/Cargo.toml
+++ b/opengl-bindings/Cargo.toml
@@ -66,5 +66,6 @@ gl_commands = [
 	"DeleteBuffers",
 	"BindBufferBase",
 	"BlendFunc",
-	"BlendEquation"
+	"BlendEquation",
+	"Scissor"
 ]
diff --git a/opengl-bindings/src/misc.rs b/opengl-bindings/src/misc.rs
index 2acc4bb..6206b79 100644
--- a/opengl-bindings/src/misc.rs
+++ b/opengl-bindings/src/misc.rs
@@ -115,6 +115,33 @@ pub fn get_context_flags(current_context: &CurrentContextWithFns<'_>) -> Context
     ContextFlags::from_bits_truncate(context_flags.cast_unsigned())
 }
 
+/// Defines a rectangle, called the scissor box, in window coordinates.
+pub fn define_scissor_box(
+    current_context: &CurrentContextWithFns<'_>,
+    lower_left_corner_pos: Vec2<u16>,
+    size: Dimens<u16>,
+)
+{
+    let lower_left_corner_pos = Vec2::<crate::sys::types::GLint> {
+        x: lower_left_corner_pos.x.into(),
+        y: lower_left_corner_pos.y.into(),
+    };
+
+    let size = Dimens::<crate::sys::types::GLsizei> {
+        width: size.width.into(),
+        height: size.height.into(),
+    };
+
+    unsafe {
+        current_context.fns().Scissor(
+            lower_left_corner_pos.x,
+            lower_left_corner_pos.y,
+            size.width,
+            size.height,
+        );
+    }
+}
+
 bitflags! {
     #[derive(Debug, Clone, Copy)]
     pub struct BufferClearMask: u32 {
@@ -130,6 +157,7 @@ bitflags! {
 pub enum Capability
 {
     DepthTest = crate::sys::DEPTH_TEST,
+    ScissorTest = crate::sys::SCISSOR_TEST,
     MultiSample = crate::sys::MULTISAMPLE,
     DebugOutput = crate::sys::DEBUG_OUTPUT,
     DebugOutputSynchronous = crate::sys::DEBUG_OUTPUT_SYNCHRONOUS,
-- 
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