graphics optimization feature inspirated by diablo3 engine

* the rendering now consits of two panes
- the background pane (for animated stuff like the map)
- the foreground pane (for steady stuff, like UI)
each pane has it own max FPS and works idependently
this may increase graphics performance on many platforms

src/framework/ui/declarations.h

@@ -28,7 +28,6 @@
 class UIManager;
 class UIWidget;
 class UITextEdit;
-class UIFrameCounter;
 class UILayout;
 class UIBoxLayout;
 class UIHorizontalLayout;
@@ -40,7 +39,6 @@ typedef std::shared_ptr<UIWidget> UIWidgetPtr;
 typedef std::weak_ptr<UIWidget> UIWidgetWeakPtr;
 
 typedef std::shared_ptr<UITextEdit> UITextEditPtr;
-typedef std::shared_ptr<UIFrameCounter> UIFrameCounterPtr;
 typedef std::shared_ptr<UILayout> UILayoutPtr;
 typedef std::shared_ptr<UIBoxLayout> UIBoxLayoutPtr;
 typedef std::shared_ptr<UIHorizontalLayout> UIHorizontalLayoutPtr;

src/framework/ui/ui.h

@@ -26,7 +26,6 @@
 #include "uimanager.h"
 #include "uiwidget.h"
 #include "uitextedit.h"
-#include "uiframecounter.h"
 #include "uilayout.h"
 #include "uihorizontallayout.h"
 #include "uiverticallayout.h"

src/framework/ui/uiframecounter.cpp

@@ -1,62 +0,0 @@
-/*
- * Copyright (c) 2010-2012 OTClient <https://github.com/edubart/otclient>
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-
-#include "uiframecounter.h"
-#include "uitranslator.h"
-#include <framework/graphics/font.h>
-#include <framework/otml/otmlnode.h>
-#include <framework/core/clock.h>
-#include <framework/graphics/graphics.h>
-
-UIFrameCounter::UIFrameCounter()
-{
-    m_focusable = false;
-    m_phantom = true;
-    m_align = Fw::AlignLeft;
-    m_lastFrameTicks = g_clock.ticks();
-    m_frameCount = 0;
-}
-
-void UIFrameCounter::drawSelf()
-{
-    UIWidget::drawSelf();
-
-    if(g_clock.ticksElapsed(m_lastFrameTicks) >= 1000) {
-        m_fpsText = stdext::format("FPS: %d", m_frameCount);
-        m_lastFrameTicks = g_clock.ticks();
-        m_frameCount = 0;
-    }
-    m_frameCount++;
-
-    g_painter->setColor(Color::white);
-    m_font->drawText(m_fpsText, m_rect, m_align);
-}
-
-void UIFrameCounter::onStyleApply(const std::string& styleName, const OTMLNodePtr& styleNode)
-{
-    UIWidget::onStyleApply(styleName, styleNode);
-
-    for(const OTMLNodePtr& node : styleNode->children()) {
-        if(node->tag() == "align")
-            setAlign(Fw::translateAlignment(node->value()));
-    }
-}

src/framework/ui/uimanager.cpp

@@ -27,6 +27,7 @@
 #include <framework/graphics/graphics.h>
 #include <framework/platform/platformwindow.h>
 #include <framework/core/eventdispatcher.h>
+#include <framework/application.h>
 
 UIManager g_ui;
 
@@ -51,9 +52,9 @@ void UIManager::terminate()
     m_pressedWidget = nullptr;
 }
 
-void UIManager::render()
+void UIManager::render(bool foregroundPane)
 {
-    m_rootWidget->draw(m_rootWidget->getRect());
+    m_rootWidget->draw(m_rootWidget->getRect(), foregroundPane);
 }
 
 void UIManager::resize(const Size& size)

src/framework/ui/uimanager.h

@@ -33,7 +33,7 @@ public:
     void init();
     void terminate();
 
-    void render();
+    void render(bool foregroundPane);
     void resize(const Size& size);
     void inputEvent(const InputEvent& event);
 

src/framework/ui/uitextedit.cpp

@@ -40,8 +40,11 @@ UITextEdit::UITextEdit()
     blinkCursor();
 }
 
-void UITextEdit::drawSelf()
+void UITextEdit::drawSelf(bool foregroundPane)
 {
+    if(!foregroundPane)
+        return;
+
     drawBackground(m_rect);
     drawBorder(m_rect);
     drawImage(m_rect);

src/framework/ui/uitextedit.h

@@ -30,7 +30,7 @@ class UITextEdit : public UIWidget
 public:
     UITextEdit();
 
-    virtual void drawSelf();
+    void drawSelf(bool foregroundPane);
 
 private:
     void update();

src/framework/ui/uiwidget.cpp

@@ -30,6 +30,7 @@
 #include <framework/graphics/graphics.h>
 #include <framework/platform/platformwindow.h>
 #include <framework/graphics/texturemanager.h>
+#include <framework/application.h>
 
 UIWidget::UIWidget()
 {
@@ -51,26 +52,29 @@ UIWidget::~UIWidget()
 #endif
 }
 
-void UIWidget::draw(const Rect& visibleRect)
+void UIWidget::draw(const Rect& visibleRect, bool foregroundPane)
 {
     if(m_clipping)
         g_painter->setClipRect(visibleRect);
 
-    drawSelf();
+    drawSelf(foregroundPane);
 
     if(m_children.size() > 0) {
         if(m_clipping)
             g_painter->setClipRect(visibleRect.intersection(getClippingRect()));
 
-        drawChildren(visibleRect);
+        drawChildren(visibleRect, foregroundPane);
     }
 
     if(m_clipping)
         g_painter->resetClipRect();
 }
 
-void UIWidget::drawSelf()
+void UIWidget::drawSelf(bool foregroundPane)
 {
+    if(!foregroundPane)
+        return;
+
     // draw style components in order
     if(m_backgroundColor.aF() > Fw::MIN_ALPHA) {
         Rect backgroundDestRect = m_rect;
@@ -84,7 +88,7 @@ void UIWidget::drawSelf()
     drawText(m_rect);
 }
 
-void UIWidget::drawChildren(const Rect& visibleRect)
+void UIWidget::drawChildren(const Rect& visibleRect, bool foregroundPane)
 {
     // draw children
     for(const UIWidgetPtr& child : m_children) {
@@ -103,10 +107,10 @@ void UIWidget::drawChildren(const Rect& visibleRect)
         if(child->getOpacity() < oldOpacity)
             g_painter->setOpacity(child->getOpacity());
 
-        child->draw(childVisibleRect);
+        child->draw(childVisibleRect, foregroundPane);
 
         // debug draw box
-        if(g_ui.isDrawingDebugBoxes()) {
+        if(foregroundPane && g_ui.isDrawingDebugBoxes()) {
             g_painter->setColor(Color::green);
             g_painter->drawBoundingRect(child->getRect());
         }
@@ -807,6 +811,7 @@ bool UIWidget::setRect(const Rect& rect)
     if(rect == oldRect)
         return false;
 
+    g_app->repaint();
     m_rect = rect;
 
     // updates own layout

src/framework/ui/uiwidget.h

@@ -52,9 +52,9 @@ public:
     virtual ~UIWidget();
 
 protected:
-    virtual void draw(const Rect& visibleRect);
-    virtual void drawSelf();
-    virtual void drawChildren(const Rect& visibleRect);
+    virtual void draw(const Rect& visibleRect, bool foregroundPane);
+    virtual void drawSelf(bool foregroundPane);
+    virtual void drawChildren(const Rect& visibleRect, bool foregroundPane);
 
     friend class UIManager;