1 files changed, 23 insertions, 0 deletions

diff --git a/src/video_core/renderer_opengl/gl_state.h b/src/video_core/renderer_opengl/gl_state.h
index d524d0625..bb0218708 100644
--- a/src/video_core/renderer_opengl/gl_state.h
+++ b/src/video_core/renderer_opengl/gl_state.h
@@ -6,6 +6,29 @@
 
 #include <glad/glad.h>
 
+namespace TextureUnits {
+
+struct TextureUnit {
+    GLint id;
+    constexpr GLenum Enum() const {
+        return static_cast<GLenum>(GL_TEXTURE0 + id);
+    }
+};
+
+constexpr TextureUnit PicaTexture(int unit) {
+    return TextureUnit{unit};
+}
+
+constexpr TextureUnit LightingLUT{3};
+constexpr TextureUnit FogLUT{4};
+constexpr TextureUnit ProcTexNoiseLUT{5};
+constexpr TextureUnit ProcTexColorMap{6};
+constexpr TextureUnit ProcTexAlphaMap{7};
+constexpr TextureUnit ProcTexLUT{8};
+constexpr TextureUnit ProcTexDiffLUT{9};
+
+} // namespace TextureUnits
+
 class OpenGLState {
 public:
     struct {