From d1c58904f4b884efc18bf42998f3e4d9bce9ce6e Mon Sep 17 00:00:00 2001
From: BZLZHH <admin@bzlzhh.top>
Date: Sat, 29 Nov 2025 20:02:08 +0800
Subject: [PATCH] [Fix] (MG_Backend/DirectGLES): Bind sampler object in
 backend.

---
 MobileGL/MG_Backend/DirectGLES/DirectGLES.cpp | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/MobileGL/MG_Backend/DirectGLES/DirectGLES.cpp b/MobileGL/MG_Backend/DirectGLES/DirectGLES.cpp
index f786b600..5b51df3f 100644
--- a/MobileGL/MG_Backend/DirectGLES/DirectGLES.cpp
+++ b/MobileGL/MG_Backend/DirectGLES/DirectGLES.cpp
@@ -353,6 +353,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
                 const auto& textureObject = bindingSlot.GetBoundObject();
                 if (!textureObject) continue;
 
+                // Bind texture object
                 auto target = textureObject->GetTarget();
                 if (target == TextureTarget::TextureBuffer || target == TextureTarget::Texture1D ||
                     target == TextureTarget::TextureRectangle || target == TextureTarget::Texture2DMultisampleArray ||
@@ -368,6 +369,17 @@ namespace MobileGL::MG_Backend::DirectGLES {
                 GLenum targetGL = MG_Util::ConvertTextureTargetToGLEnum(target);
                 backendTextureIt->second->Bind(targetGL);
             }
+
+            // Bind sampler object
+            const auto& samplerObject = textureUnit.GetSamplerObject();
+            if (samplerObject) {
+                const auto& backendSamplerIt = SamplerImpl::g_backendSamplerObjects.find(samplerObject);
+                if (backendSamplerIt != SamplerImpl::g_backendSamplerObjects.end()) {
+                    backendSamplerIt->second->Bind(unit);
+                }
+            } else {
+                MG_External::GLES::glBindSampler(unit, 0);
+            }
         }
 
         const auto& currentProgram = MG_State::pGLContext->GetCurrentProgram();