fix issue cocos2d/cocos2d-x#20603

zhongfq · Nov 10, 2020 · 709e03c · 709e03c
1 parent 0ddf76a
commit 709e03c
Showing 1 changed file with 5 additions and 2 deletions.
diff --git a/frameworks/cocos2d-x/cocos/2d/CCSprite.cpp b/frameworks/cocos2d-x/cocos/2d/CCSprite.cpp
@@ -417,8 +417,11 @@ void Sprite::setProgramState(backend::ProgramState *programState)
 
 void Sprite::setTexture(Texture2D *texture)
 {
-    auto isETC1 = texture && texture->getAlphaTextureName();
-    setProgramState((isETC1) ? backend::ProgramType::ETC1 : backend::ProgramType::POSITION_TEXTURE_COLOR);
+    if (_programState == nullptr || _programState->getProgram()->getProgramType() == backend::ProgramType::POSITION_TEXTURE_COLOR ||
+             _programState->getProgram()->getProgramType() == backend::ProgramType::ETC1) {
+        const auto isETC1 = texture && texture->getAlphaTextureName();
+        setProgramState((isETC1) ? backend::ProgramType::ETC1 : backend::ProgramType::POSITION_TEXTURE_COLOR);
+    }
     CCASSERT(! _batchNode || (texture &&  texture == _batchNode->getTexture()), "CCSprite: Batched sprites should use the same texture as the batchnode");
     // accept texture==nil as argument
     CCASSERT( !texture || dynamic_cast<Texture2D*>(texture), "setTexture expects a Texture2D. Invalid argument");