Improved image gradient GetValue(s) performance by using cached image data

Signed-off-by: Chris Galvan <chgalvan@amazon.com>
2022-02-09 12:22:38 -06:00
parent 39777e7afb
commit 2f3c4d37df
6 changed files with 109 additions and 31 deletions
@@ -98,6 +98,8 @@ namespace GradientSignal

        void SetupDependencies();

+        void GetSubImageData();
+
        // ImageGradientRequestBus overrides...
        AZStd::string GetImageAssetPath() const override;
        void SetImageAssetPath(const AZStd::string& assetPath) override;
@@ -113,5 +115,6 @@ namespace GradientSignal
        LmbrCentral::DependencyMonitor m_dependencyMonitor;
        mutable AZStd::shared_mutex m_imageMutex;
        GradientTransform m_gradientTransform;
+        AZStd::span<const uint8_t> m_imageData;
    };
 }
@@ -62,6 +62,6 @@ namespace GradientSignal
        }
    };

-    float GetValueFromImageAsset(const AZ::Data::Asset<AZ::RPI::StreamingImageAsset>& imageAsset, const AZ::Vector3& uvw, float tilingX, float tilingY, float defaultValue);
+    float GetValueFromImageAsset(AZStd::span<const uint8_t> imageData, const AZ::RHI::ImageDescriptor& imageDescriptor, const AZ::Vector3& uvw, float tilingX, float tilingY, float defaultValue);

 } // namespace GradientSignal