Disable the stencil test when no stencil buffer

src/libGLESv2/Context.cpp

@@ -1642,7 +1642,7 @@ void Context::applyState(GLenum drawMode)
         device->SetRenderState(D3DRS_ALPHABLENDENABLE, FALSE);
     }
 
-    if (mState.stencilTest)
+    if (mState.stencilTest && hasStencil())
     {
         device->SetRenderState(D3DRS_STENCILENABLE, TRUE);
         device->SetRenderState(D3DRS_TWOSIDEDSTENCILMODE, TRUE);
@@ -2566,6 +2566,23 @@ bool Context::isTriangleMode(GLenum drawMode)
     return false;
 }
 
+bool Context::hasStencil()
+{
+    Framebuffer *framebufferObject = getFramebuffer();
+
+    if (framebufferObject)
+    {
+        Stencilbuffer *stencilbufferObject = framebufferObject->getStencilbuffer();
+
+        if (stencilbufferObject)
+        {
+            return stencilbufferObject->getStencilSize() > 0;
+        }
+    }
+
+    return false;
+}
+
 void Context::setVertexAttrib(GLuint index, const GLfloat *values)
 {
     ASSERT(index < gl::MAX_VERTEX_ATTRIBS);

src/libGLESv2/Context.h

@@ -391,6 +391,7 @@ class Context
 
     bool cullSkipsDraw(GLenum drawMode);
     bool isTriangleMode(GLenum drawMode);
+    bool hasStencil();
 
     const egl::Config *const mConfig;