From 9f94808c3f863a601d94ae5b0798d81a426ea9c4 Mon Sep 17 00:00:00 2001
From: apo <apo@opencascade.com>
Date: Tue, 6 Dec 2005 06:35:17 +0000
Subject: [PATCH] To introduce caching for textures

---
 src/PIPELINE/VISUPipeLine.cxx       | 4 +++-
 src/PIPELINE/VISU_GaussPointsPL.cxx | 6 ++++--
 src/PIPELINE/VISU_GaussPointsPL.hxx | 2 +-
 3 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/src/PIPELINE/VISUPipeLine.cxx b/src/PIPELINE/VISUPipeLine.cxx
index b985bde6..d1ac8fe3 100644
--- a/src/PIPELINE/VISUPipeLine.cxx
+++ b/src/PIPELINE/VISUPipeLine.cxx
@@ -43,6 +43,7 @@ typedef VISU_GaussPointsPL TPresent;
 
 #include <vtkRenderWindowInteractor.h>
 #include <vtkRenderWindow.h>
+#include <vtkImageData.h>
 #include <vtkRenderer.h>
 #include <vtkCamera.h>
 #include <vtkActor.h>
@@ -141,7 +142,8 @@ int main(int argc, char** argv){
 	  strcat( anAlphaTexture, "/share/salome/resources/sprite_alpha.vti" );
 	  //cout << anAlphaTexture << endl;
 
-	  aPresent->SetImageData( VISU_GaussPointsPL::MakeTexture( aMainTexture, anAlphaTexture ) );
+	  vtkSmartPointer<vtkImageData> aTextureValue = VISU_GaussPointsPL::MakeTexture( aMainTexture, anAlphaTexture );
+	  aPresent->SetImageData( aTextureValue.GetPointer() );
 
 	  aPresent->Update();
 
diff --git a/src/PIPELINE/VISU_GaussPointsPL.cxx b/src/PIPELINE/VISU_GaussPointsPL.cxx
index 3c180fa7..c0a86dc9 100644
--- a/src/PIPELINE/VISU_GaussPointsPL.cxx
+++ b/src/PIPELINE/VISU_GaussPointsPL.cxx
@@ -616,7 +616,7 @@ VISU_GaussPointsPL
 }
 
 //----------------------------------------------------------------------------
-vtkImageData*
+vtkSmartPointer<vtkImageData>
 VISU_GaussPointsPL
 ::MakeTexture( const char* theMainTexture, 
 	       const char* theAlphaTexture )
@@ -641,8 +641,10 @@ VISU_GaussPointsPL
   if(aMainImageSize[0] != anAlphaImageSize[0] || aMainImageSize[1] != anAlphaImageSize[1])
     return NULL;
 
+  vtkSmartPointer<vtkImageData> aCompositeImageData = vtkImageData::New();
+  aCompositeImageData->Delete();
+
   int aNbCompositeComponents = 4;
-  vtkImageData* aCompositeImageData = vtkImageData::New();
   aCompositeImageData->SetDimensions(aMainImageSize);
   aCompositeImageData->SetScalarTypeToUnsignedChar();        
   aCompositeImageData->SetNumberOfScalarComponents(aNbCompositeComponents);
diff --git a/src/PIPELINE/VISU_GaussPointsPL.hxx b/src/PIPELINE/VISU_GaussPointsPL.hxx
index 86d63dc9..b342ab56 100644
--- a/src/PIPELINE/VISU_GaussPointsPL.hxx
+++ b/src/PIPELINE/VISU_GaussPointsPL.hxx
@@ -251,7 +251,7 @@ public:
    * Second parameter - texture for alpha mask.
    */
   static
-  vtkImageData*
+  vtkSmartPointer<vtkImageData>
   MakeTexture( const char* theMainTexture,
 	       const char* theAlphaTexture );
 
-- 
2.39.2