1 files changed, 5 insertions, 0 deletions
diff --git a/src/gpu/gl/GrGLShaderBuilder.cpp b/src/gpu/gl/GrGLShaderBuilder.cpp
index 0d2a1ecf44..7171029f5b 100644
--- a/src/gpu/gl/GrGLShaderBuilder.cpp
+++ b/src/gpu/gl/GrGLShaderBuilder.cpp
@@ -180,6 +180,11 @@ void GrGLShaderBuilder::emitCustomTextureLookup(SamplerMode samplerMode,
 GrCustomStage::StageKey GrGLShaderBuilder::KeyForTextureAccess(const GrTextureAccess& access,
                                                                const GrGLCaps& caps) {
     GrCustomStage::StageKey key = 0;
+    
+    if (!access.getTexture()) {
+        return key;
+    }    
+    
     // Assume that swizzle support implies that we never have to modify a shader to adjust
     // for texture format/swizzle settings.
     if (caps.textureSwizzleSupport()) {