Remove (almost) all references to pRenderer (#651)

Remove all references to pRenderer, except from the DebugDraw and LyShine Gems that are still being updated.

Code/Sandbox/Editor/IEditorImpl.cpp

@@ -49,7 +49,6 @@ AZ_POP_DISABLE_WARNING
 #include "Objects/GizmoManager.h"
 #include "Objects/AxisGizmo.h"
 #include "DisplaySettings.h"
-#include "ShaderEnum.h"
 #include "KeyboardCustomizationSettings.h"
 #include "Export/ExportManager.h"
 #include "LevelIndependentFileMan.h"
@@ -60,7 +59,6 @@ AZ_POP_DISABLE_WARNING
 #include "MainWindow.h"
 #include "Alembic/AlembicCompiler.h"
 #include "UIEnumsDatabase.h"
-#include "Util/Ruler.h"
 #include "RenderHelpers/AxisHelper.h"
 #include "Settings.h"
 #include "Include/IObjectManager.h"
@@ -134,7 +132,6 @@ CEditorImpl::CEditorImpl()
     , m_bUpdates(true)
     , m_bTerrainAxisIgnoreObjects(false)
     , m_pDisplaySettings(nullptr)
-    , m_pShaderEnum(nullptr)
     , m_pIconManager(nullptr)
     , m_bSelectionLocked(true)
     , m_pAxisGizmo(nullptr)
@@ -149,7 +146,6 @@ CEditorImpl::CEditorImpl()
     , m_pSourceControl(nullptr)
     , m_pSelectionTreeManager(nullptr)
     , m_pUIEnumsDatabase(nullptr)
-    , m_pRuler(nullptr)
     , m_pConsoleSync(nullptr)
     , m_pSettingsManager(nullptr)
     , m_pLevelIndependentFileMan(nullptr)
@@ -185,7 +181,6 @@ CEditorImpl::CEditorImpl()
     m_pBackgroundScheduleManager.reset(new BackgroundScheduleManager::CScheduleManager);
     m_pUIEnumsDatabase = new CUIEnumsDatabase;
     m_pDisplaySettings = new CDisplaySettings;
-    m_pShaderEnum = new CShaderEnum;
     m_pDisplaySettings->LoadRegistry();
     m_pPluginManager = new CPluginManager;
 
@@ -202,7 +197,6 @@ CEditorImpl::CEditorImpl()
 
     m_pImageUtil = new CImageUtil_impl();
     m_pResourceSelectorHost.reset(CreateResourceSelectorHost());
-    m_pRuler = new CRuler;
     m_selectedRegion.min = Vec3(0, 0, 0);
     m_selectedRegion.max = Vec3(0, 0, 0);
     DetectVersion();
@@ -335,8 +329,6 @@ CEditorImpl::~CEditorImpl()
     }
 
     SAFE_DELETE(m_pDisplaySettings)
-    SAFE_DELETE(m_pRuler)
-    SAFE_DELETE(m_pShaderEnum)
     SAFE_DELETE(m_pToolBoxManager)
     SAFE_DELETE(m_pCommandManager)
     SAFE_DELETE(m_pClassFactory)
@@ -419,7 +411,6 @@ void CEditorImpl::Update()
     m_bUpdates = false;
 
     FUNCTION_PROFILER(GetSystem(), PROFILE_EDITOR);
-    m_pRuler->Update();
 
     //@FIXME: Restore this latter.
     //if (GetGameEngine() && GetGameEngine()->IsLevelLoaded())
@@ -440,15 +431,6 @@ ISystem* CEditorImpl::GetSystem()
     return m_pSystem;
 }
 
-IRenderer*  CEditorImpl::GetRenderer()
-{
-    if (gEnv)
-    {
-        return gEnv->pRenderer;
-    }
-    return nullptr;
-}
-
 IEditorClassFactory* CEditorImpl::GetClassFactory()
 {
     return m_pClassFactory;
@@ -1182,11 +1164,6 @@ void CEditorImpl::AddTemplate(const QString& templateName, XmlNodeRef& tmpl)
     m_templateRegistry.AddTemplate(templateName, tmpl);
 }
 
-CShaderEnum* CEditorImpl::GetShaderEnum()
-{
-    return m_pShaderEnum;
-}
-
 bool CEditorImpl::ExecuteConsoleApp(const QString& CommandLine, QString& OutputText, [[maybe_unused]] bool bNoTimeOut, bool bShowWindow)
 {
     CLogFile::FormatLine("Executing console application '%s'", CommandLine.toUtf8().data());
@@ -1569,7 +1546,6 @@ void CEditorImpl::ReduceMemory()
     GetIEditor()->GetUndoManager()->ClearRedoStack();
     GetIEditor()->GetUndoManager()->ClearUndoStack();
     GetIEditor()->GetObjectManager()->SendEvent(EVENT_FREE_GAME_DATA);
-    gEnv->pRenderer->FreeResources(FRR_TEXTURES);
 
 #if defined(AZ_PLATFORM_WINDOWS)
     HANDLE hHeap = GetProcessHeap();