Merge lp:~townsend/unity/low-gfx-mode-option into lp:unity

[Christopher Townsend]

Add option to enable and disable Unity low graphics mode on the fly in ccsm or via gsettings.

[PS Jenkins bot (ps-jenkins)]

FAILED: Continuous integration, rev:3929
http://jenkins.qa.ubuntu.com/job/unity-ci/1198/
Executed test runs:
    FAILURE: http://jenkins.qa.ubuntu.com/job/unity-vivid-amd64-ci/86/console
    SUCCESS: http://jenkins.qa.ubuntu.com/job/unity-vivid-armhf-ci/85
    SUCCESS: http://jenkins.qa.ubuntu.com/job/unity-vivid-i386-ci/85

Click here to trigger a rebuild:
http://s-jenkins.ubuntu-ci:8080/job/unity-ci/1198/rebuild

review: Needs Fixing (continuous-integration)

[Marco Trevisan (Treviño) (3v1n0)]

Looks good, see just minor comment

review: Approve

=== modified file 'panel/PanelView.cpp'
--- panel/PanelView.cpp	2015-02-03 10:47:59 +0000
+++ panel/PanelView.cpp	2015-04-21 20:18:17 +0000
@@ -61,6 +61,7 @@
   auto& wm = WindowManager::Default();
   panel::Style::Instance().changed.connect(sigc::mem_fun(this, &PanelView::ForceUpdateBackground));
   Settings::Instance().dpi_changed.connect(sigc::mem_fun(this, &PanelView::Resize));
+  Settings::Instance().low_gfx_changed.connect(sigc::mem_fun(this, &PanelView::OnLowGfxChanged));
 
   wm.average_color.changed.connect(sigc::mem_fun(this, &PanelView::OnBackgroundUpdate));
   wm.initiate_spread.connect(sigc::mem_fun(this, &PanelView::OnSpreadInitiate));
@@ -249,6 +250,22 @@
   EnableOverlayMode(false);
 }
 
+void PanelView::OnLowGfxChanged()
+{
+  if (!Settings::Instance().GetLowGfxMode())
+  {
+    nux::ROPConfig rop;
+
+    rop.Blend = true;
+    rop.SrcBlend = GL_ZERO;
+    rop.DstBlend = GL_SRC_COLOR;
+    nux::Color darken_colour = nux::Color(0.9f, 0.9f, 0.9f, 1.0f);
+    bg_darken_layer_.reset(new nux::ColorLayer(darken_colour, false, rop));
+  }
+
+  ForceUpdateBackground();
+}
+
 void PanelView::AddPanelView(PanelIndicatorsView* child,
                              unsigned int stretchFactor)
 {
@@ -537,6 +554,7 @@
   is_dirty_ = true;
   UpdateBackground();
 
+  QueueRelayout();
   QueueDraw();
 }
 
 
=== modified file 'panel/PanelView.h'
--- panel/PanelView.h	2014-12-12 22:33:24 +0000
+++ panel/PanelView.h	2015-04-21 20:18:17 +0000
@@ -98,6 +98,7 @@
   void OnOverlayHidden(GVariant *data);
   void OnSpreadInitiate();
   void OnSpreadTerminate();
+  void OnLowGfxChanged();
   void EnableOverlayMode(bool);
 
   bool ActivateFirstSensitive();
 
=== modified file 'plugins/unityshell/src/unityshell.cpp'
--- plugins/unityshell/src/unityshell.cpp	2015-04-10 21:59:05 +0000
+++ plugins/unityshell/src/unityshell.cpp	2015-04-21 20:18:17 +0000
@@ -261,7 +261,8 @@
       renderer.find("Mesa X11") != std::string::npos ||
       renderer.find("LLVM") != std::string::npos ||
       renderer.find("on softpipe") != std::string::npos ||
-      (getenv("UNITY_LOW_GFX_MODE") != NULL && atoi(getenv("UNITY_LOW_GFX_MODE")) == 1))
+      (getenv("UNITY_LOW_GFX_MODE") != NULL && atoi(getenv("UNITY_LOW_GFX_MODE")) == 1) ||
+      optionGetLowGraphicsMode())
     {
       unity_settings_.SetLowGfxMode(true);
     }
@@ -337,6 +338,7 @@
      optionSetAutohideAnimationNotify(boost::bind(&UnityScreen::optionChanged, this, _1, _2));
      optionSetDashBlurExperimentalNotify(boost::bind(&UnityScreen::optionChanged, this, _1, _2));
      optionSetShortcutOverlayNotify(boost::bind(&UnityScreen::optionChanged, this, _1, _2));
+     optionSetLowGraphicsModeNotify(boost::bind(&UnityScreen::optionChanged, this, _1, _2));
      optionSetShowLauncherInitiate(boost::bind(&UnityScreen::showLauncherKeyInitiate, this, _1, _2, _3));
      optionSetShowLauncherTerminate(boost::bind(&UnityScreen::showLauncherKeyTerminate, this, _1, _2, _3));
      optionSetKeyboardFocusInitiate(boost::bind(&UnityScreen::setKeyboardFocusKeyInitiate, this, _1, _2, _3));
@@ -3596,6 +3598,14 @@
     case UnityshellOptions::ShortcutOverlay:
       shortcut_controller_->SetEnabled(optionGetShortcutOverlay());
       break;
+    case UnityshellOptions::LowGraphicsMode:
+      if (optionGetLowGraphicsMode())
+          BackgroundEffectHelper::blur_type = BLUR_NONE;
+      else
+          BackgroundEffectHelper::blur_type = (unity::BlurType)optionGetDashBlurExperimental();
+
+      unity::Settings::Instance().SetLowGfxMode(optionGetLowGraphicsMode());
+      break;
     case UnityshellOptions::DecayRate:
       launcher_options->edge_decay_rate = optionGetDecayRate() * 100;
       break;
 
=== modified file 'plugins/unityshell/unityshell.xml.in'
--- plugins/unityshell/unityshell.xml.in	2015-02-04 08:20:43 +0000
+++ plugins/unityshell/unityshell.xml.in	2015-04-21 20:18:17 +0000
@@ -146,6 +146,12 @@
                   <_long>Enables possibility to display an overlay showing available mouse and keyboard shortcuts.</_long>
                   <default>true</default>
                 </option>
+
+                <option name="low_graphics_mode"  type="bool">
+                  <_short>Enable Low Graphics Mode</_short>
+                  <_long>Enables low graphics mode regardless of hardware in the system</_long>
+                  <default>false</default>
+                </option>
             </group>
 
             <group>
 
=== modified file 'unity-shared/OverlayRenderer.cpp'
--- unity-shared/OverlayRenderer.cpp	2014-07-10 20:32:06 +0000
+++ unity-shared/OverlayRenderer.cpp	2015-04-21 20:18:17 +0000
@@ -116,6 +116,8 @@
 {
   parent->scale = Settings::Instance().em()->DPIScale();
   parent->scale.changed.connect(sigc::hide(sigc::mem_fun(this, &OverlayRendererImpl::LoadScaledTextures)));
+  Settings::Instance().low_gfx_changed.connect(sigc::mem_fun(this, &OverlayRendererImpl::UpdateTextures));
+
   UpdateTextures();
   LoadScaledTextures();
 }
 
=== modified file 'unity-shared/UnitySettings.cpp'
--- unity-shared/UnitySettings.cpp	2015-02-19 19:33:36 +0000
+++ unity-shared/UnitySettings.cpp	2015-04-21 20:18:17 +0000
@@ -373,7 +373,12 @@
 
 void Settings::SetLowGfxMode(const bool low_gfx)
 {
-  pimpl->lowGfx_ = low_gfx;
+  if (pimpl->lowGfx_ != low_gfx)
+  {
+    pimpl->lowGfx_ = low_gfx;
+
+    low_gfx_changed.emit();
+  }
 }
 
 EMConverter::Ptr const& Settings::em(int monitor) const
 
=== modified file 'unity-shared/UnitySettings.h'
--- unity-shared/UnitySettings.h	2015-02-03 12:31:32 +0000
+++ unity-shared/UnitySettings.h	2015-04-21 20:18:17 +0000
@@ -58,6 +58,7 @@
   nux::Property<double> font_scaling;
 
   sigc::signal<void> dpi_changed;
+  sigc::signal<void> low_gfx_changed;
 
 private:
   class Impl;