Text2Image SDXL fix for GPU (openvinotoolkit#1266)

CVS-156801

Author: likholat

src/cpp/src/image_generation/stable_diffusion_xl_pipeline.hpp

@@ -111,12 +111,19 @@ class StableDiffusionXLPipeline : public DiffusionPipeline {
             OPENVINO_THROW("Unsupported '", unet, "' UNet type");
         }
 
+        // Temporary fix for GPU
+        ov::AnyMap updated_roperties = properties;
+        if (device.find("GPU") != std::string::npos &&
+            updated_roperties.find("INFERENCE_PRECISION_HINT") == updated_roperties.end()) {
+            updated_roperties["INFERENCE_PRECISION_HINT"] = ov::element::f32;
+        }
+
         const std::string vae = data["vae"][1].get<std::string>();
         if (vae == "AutoencoderKL") {
             if (m_pipeline_type == PipelineType::TEXT_2_IMAGE)
-                m_vae = std::make_shared<AutoencoderKL>(root_dir / "vae_decoder", device, properties);
+                m_vae = std::make_shared<AutoencoderKL>(root_dir / "vae_decoder", device, updated_roperties);
             else if (m_pipeline_type == PipelineType::IMAGE_2_IMAGE) {
-                m_vae = std::make_shared<AutoencoderKL>(root_dir / "vae_encoder", root_dir / "vae_decoder", device, properties);
+                m_vae = std::make_shared<AutoencoderKL>(root_dir / "vae_encoder", root_dir / "vae_decoder", device, updated_roperties);
             } else {
                 OPENVINO_ASSERT("Unsupported pipeline type");
             }