Release layer cache texture when layer size changes

Fixes dynamic resize for effects.

Task-number: QT3DS-4085
Change-Id: Ifb52ce367af8b4edc7d03b4ed90980d8e510e662
Reviewed-by: Antti Määttä <antti.maatta@qt.io>
Reviewed-by: Miikka Heikkinen <miikka.heikkinen@qt.io>

1 files changed, 10 insertions, 0 deletions

diff --git a/src/runtimerender/rendererimpl/Qt3DSRendererImplLayerRenderData.cpp b/src/runtimerender/rendererimpl/Qt3DSRendererImplLayerRenderData.cpp
index e41a738..0920b38 100644
--- a/src/runtimerender/rendererimpl/Qt3DSRendererImplLayerRenderData.cpp
+++ b/src/runtimerender/rendererimpl/Qt3DSRendererImplLayerRenderData.cpp
@@ -1890,6 +1890,16 @@ void SLayerRenderData::RunRenderPass(TRenderRenderableFunction inRenderFn,
         NVRenderTexture2D *theLayerColorTexture = m_LayerTexture;
         NVRenderTexture2D *theLayerDepthTexture = m_LayerDepthTexture;
 
+        if (m_LayerCachedTexture) {
+            STextureDetails details(theLayerColorTexture->GetTextureDetails());
+            STextureDetails cachedDetails(m_LayerCachedTexture->GetTextureDetails());
+            if (cachedDetails.m_Width != details.m_Width
+                    || cachedDetails.m_Height != details.m_Height) {
+                theResourceManager.Release(*m_LayerCachedTexture);
+                m_LayerCachedTexture = nullptr;
+            }
+        }
+
         if (!m_LayerCachedTexture) {
             STextureDetails details(theLayerColorTexture->GetTextureDetails());
             QT3DSU32 finalWidth = ITextRenderer::NextMultipleOf4((QT3DSU32)(details.m_Width));