dali-scene3d/internal/controls/scene-view/scene-view-impl.cpp

   1 /*
   2  * Copyright (c) 2022 Samsung Electronics Co., Ltd.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  *
  16  */
  17
  18 // CLASS HEADER
  19 #include <dali-scene3d/internal/controls/scene-view/scene-view-impl.h>
  20
  21 // EXTERNAL INCLUDES
  22 #include <dali-toolkit/dali-toolkit.h>
  23 #include <dali-toolkit/devel-api/controls/control-devel.h>
  24 #include <dali-toolkit/devel-api/visual-factory/visual-factory.h>
  25 #include <dali-toolkit/internal/controls/control/control-data-impl.h>
  26 #include <dali-toolkit/public-api/image-loader/image-url.h>
  27 #include <dali-toolkit/public-api/image-loader/image.h>
  28 #include <dali/devel-api/common/stage.h>
  29 #include <dali/integration-api/debug.h>
  30 #include <dali/public-api/object/type-registry-helper.h>
  31 #include <dali/public-api/object/type-registry.h>
  32
  33 // INTERNAL INCLUDES
  34 #include <dali-scene3d/internal/controls/model-view/model-view-impl.h>
  35 #include <dali-scene3d/public-api/loader/cube-map-loader.h>
  36
  37 #include <dali/integration-api/debug.h>
  38
  39 using namespace Dali;
  40
  41 namespace Dali
  42 {
  43 namespace Scene3D
  44 {
  45 namespace Internal
  46 {
  47 namespace
  48 {
  49 BaseHandle Create()
  50 {
  51   return Scene3D::SceneView::New();
  52 }
  53
  54 // Setup properties, signals and actions using the type-registry.
  55 DALI_TYPE_REGISTRATION_BEGIN(Scene3D::SceneView, Toolkit::Control, Create);
  56 DALI_TYPE_REGISTRATION_END()
  57
  58 Property::Index RENDERING_BUFFER = Dali::Toolkit::Control::CONTROL_PROPERTY_END_INDEX + 1;
  59
  60 } // anonymous namespace
  61
  62 SceneView::SceneView()
  63 : Control(ControlBehaviour(CONTROL_BEHAVIOUR_DEFAULT))
  64 {
  65 }
  66
  67 SceneView::~SceneView() = default;
  68
  69 Dali::Scene3D::SceneView SceneView::New()
  70 {
  71   SceneView* impl = new SceneView();
  72
  73   Dali::Scene3D::SceneView handle = Dali::Scene3D::SceneView(*impl);
  74
  75   // Second-phase init of the implementation
  76   // This can only be done after the CustomActor connection has been made...
  77   impl->Initialize();
  78
  79   return handle;
  80 }
  81
  82 void SceneView::AddCamera(CameraActor camera)
  83 {
  84   if(camera)
  85   {
  86     if(mCameras.empty())
  87     {
  88       UpdateCamera(camera);
  89     }
  90     mCameras.push_back(camera);
  91   }
  92 }
  93
  94 void SceneView::RemoveCamera(CameraActor camera)
  95 {
  96   if(camera == mDefaultCamera)
  97   {
  98     DALI_LOG_ERROR("Default Camera cannot removed.\n");
  99     return;
 100   }
 101
 102   if(camera)
 103   {
 104     for(uint32_t i = 0; i < mCameras.size(); ++i)
 105     {
 106       if(mCameras[i] == camera)
 107       {
 108         mCameras.erase(mCameras.begin() + i);
 109         break;
 110       }
 111     }
 112
 113     if(mSelectedCamera == camera)
 114     {
 115       CameraActor newCurrentCamera = *mCameras.begin();
 116       UpdateCamera(newCurrentCamera);
 117     }
 118   }
 119 }
 120
 121 uint32_t SceneView::GetCameraCount()
 122 {
 123   return mCameras.size();
 124 }
 125
 126 CameraActor SceneView::GetSelectedCamera()
 127 {
 128   return mSelectedCamera;
 129 }
 130
 131 CameraActor SceneView::GetCamera(uint32_t index)
 132 {
 133   if(index < mCameras.size())
 134   {
 135     return mCameras[index];
 136   }
 137   DALI_LOG_ERROR("Input index is out of bounds\n");
 138   return CameraActor();
 139 }
 140
 141 CameraActor SceneView::GetCamera(const std::string& name)
 142 {
 143   CameraActor returnCamera;
 144   for(auto&& camera : mCameras)
 145   {
 146     if(camera.GetProperty<std::string>(Actor::Property::NAME) == name)
 147     {
 148       returnCamera = camera;
 149       break;
 150     }
 151   }
 152   return returnCamera;
 153 }
 154
 155 void SceneView::SelectCamera(uint32_t index)
 156 {
 157   UpdateCamera(GetCamera(index));
 158 }
 159
 160 void SceneView::SelectCamera(const std::string& name)
 161 {
 162   UpdateCamera(GetCamera(name));
 163 }
 164
 165 void SceneView::RegisterModelView(Scene3D::ModelView modelView)
 166 {
 167   if(modelView)
 168   {
 169     modelView.SetImageBasedLightTexture(mDiffuseTexture, mSpecularTexture, mIblScaleFactor);
 170     mModels.push_back(modelView);
 171   }
 172 }
 173
 174 void SceneView::UnregisterModelView(Scene3D::ModelView modelView)
 175 {
 176   if(modelView)
 177   {
 178     for(uint32_t i = 0; i < mModels.size(); ++i)
 179     {
 180       if(mModels[i] == modelView)
 181       {
 182         mModels.erase(mModels.begin() + i);
 183         break;
 184       }
 185     }
 186   }
 187 }
 188
 189 void SceneView::SetImageBasedLightSource(const std::string& diffuse, const std::string& specular, float scaleFactor)
 190 {
 191   mIBLResourceReady = false;
 192   Texture diffuseTexture = Dali::Scene3D::Loader::LoadCubeMap(diffuse);
 193   if(diffuseTexture)
 194   {
 195     Texture specularTexture = Dali::Scene3D::Loader::LoadCubeMap(specular);
 196     if(specularTexture)
 197     {
 198       mDiffuseTexture  = diffuseTexture;
 199       mSpecularTexture = specularTexture;
 200       mIblScaleFactor  = scaleFactor;
 201
 202       for(auto&& model : mModels)
 203       {
 204         if(model)
 205         {
 206           model.SetImageBasedLightTexture(mDiffuseTexture, mSpecularTexture, mIblScaleFactor);
 207         }
 208       }
 209     }
 210   }
 211   mIBLResourceReady = true;
 212   Control::SetResourceReady(false);
 213 }
 214
 215 void SceneView::UseFramebuffer(bool useFramebuffer)
 216 {
 217   if(mUseFrameBuffer != useFramebuffer)
 218   {
 219     mUseFrameBuffer = useFramebuffer;
 220     UpdateRenderTask();
 221   }
 222 }
 223
 224 bool SceneView::IsUsingFramebuffer()
 225 {
 226   return mUseFrameBuffer;
 227 }
 228
 229 ///////////////////////////////////////////////////////////
 230 //
 231 // Private methods
 232 //
 233
 234 void SceneView::OnSceneConnection(int depth)
 235 {
 236   UpdateRenderTask();
 237
 238   Control::OnSceneConnection(depth);
 239 }
 240
 241 void SceneView::OnSceneDisconnection()
 242 {
 243   mModels.clear();
 244   Control::OnSceneDisconnection();
 245 }
 246
 247 void SceneView::OnInitialize()
 248 {
 249   Actor self = Self();
 250   mRootLayer = Layer::New();
 251   mRootLayer.SetProperty(Layer::Property::BEHAVIOR, Layer::LAYER_3D);
 252   mRootLayer.SetProperty(Layer::Property::DEPTH_TEST, true);
 253   // The models in the SceneView should be have independent coordinate with DALi default coordinate.
 254   mRootLayer.SetProperty(Dali::Actor::Property::INHERIT_POSITION, false);
 255   mRootLayer.SetProperty(Dali::Actor::Property::INHERIT_ORIENTATION, false);
 256   mRootLayer.SetProperty(Dali::Actor::Property::INHERIT_SCALE, false);
 257   self.Add(mRootLayer);
 258
 259   RenderTaskList taskList = Stage::GetCurrent().GetRenderTaskList();
 260   mRenderTask             = taskList.CreateTask();
 261   mRenderTask.SetSourceActor(mRootLayer);
 262   mRenderTask.SetExclusive(true);
 263   mRenderTask.SetInputEnabled(true);
 264   mRenderTask.SetCullMode(false);
 265   mRenderTask.SetScreenToFrameBufferMappingActor(Self());
 266
 267   mDefaultCamera = Dali::CameraActor::New();
 268   mDefaultCamera.SetProperty(Dali::Actor::Property::PARENT_ORIGIN, ParentOrigin::CENTER);
 269   mDefaultCamera.SetProperty(Dali::Actor::Property::ANCHOR_POINT, AnchorPoint::CENTER);
 270   mDefaultCamera.SetNearClippingPlane(1.0f);
 271   AddCamera(mDefaultCamera);
 272   UpdateCamera(mDefaultCamera);
 273 }
 274
 275 void SceneView::OnChildAdd(Actor& child)
 276 {
 277   if(child != mRootLayer)
 278   {
 279     mRootLayer.Add(child);
 280   }
 281   Control::OnChildAdd(child);
 282 }
 283
 284 void SceneView::OnChildRemove(Actor& child)
 285 {
 286   mRootLayer.Remove(child);
 287   Control::OnChildRemove(child);
 288 }
 289
 290 float SceneView::GetHeightForWidth(float width)
 291 {
 292   Extents padding;
 293   padding = Self().GetProperty<Extents>(Toolkit::Control::Property::PADDING);
 294   return Control::GetHeightForWidth(width) + padding.top + padding.bottom;
 295 }
 296
 297 float SceneView::GetWidthForHeight(float height)
 298 {
 299   Extents padding;
 300   padding = Self().GetProperty<Extents>(Toolkit::Control::Property::PADDING);
 301   return Control::GetWidthForHeight(height) + padding.start + padding.end;
 302 }
 303
 304 void SceneView::OnRelayout(const Vector2& size, RelayoutContainer& container)
 305 {
 306   Control::OnRelayout(size, container);
 307   // Change canvas size of camera actor.
 308   UpdateRenderTask();
 309 }
 310
 311 bool SceneView::IsResourceReady() const
 312 {
 313   return mIBLResourceReady;
 314 }
 315
 316 void SceneView::UpdateCamera(CameraActor camera)
 317 {
 318   if(camera)
 319   {
 320     if(mSelectedCamera && mSelectedCamera.GetParent())
 321     {
 322       mSelectedCamera.Unparent();
 323     }
 324     mRootLayer.Add(camera);
 325   }
 326
 327   mSelectedCamera = camera;
 328   UpdateRenderTask();
 329 }
 330
 331 void SceneView::UpdateRenderTask()
 332 {
 333   if(mRenderTask)
 334   {
 335     if(mSelectedCamera != mRenderTask.GetCameraActor())
 336     {
 337       mRenderTask.SetCameraActor(mSelectedCamera);
 338     }
 339
 340     Vector3 size = Self().GetProperty<Vector3>(Dali::Actor::Property::SIZE);
 341     const float aspectRatio = size.width / size.height;
 342     mSelectedCamera.SetAspectRatio(aspectRatio);
 343     const float halfHeight = mSelectedCamera[Dali::CameraActor::Property::TOP_PLANE_DISTANCE];
 344     const float halfWidth = aspectRatio * halfHeight;
 345     mSelectedCamera[Dali::CameraActor::Property::LEFT_PLANE_DISTANCE]   = -halfWidth;
 346     mSelectedCamera[Dali::CameraActor::Property::RIGHT_PLANE_DISTANCE]  = halfWidth;
 347     mSelectedCamera[Dali::CameraActor::Property::TOP_PLANE_DISTANCE]    = halfHeight; // Top is +ve to keep consistency with orthographic values
 348     mSelectedCamera[Dali::CameraActor::Property::BOTTOM_PLANE_DISTANCE] = -halfHeight; // Bottom is -ve to keep consistency with orthographic values
 349     if(mUseFrameBuffer)
 350     {
 351       Dali::FrameBuffer currentFrameBuffer = mRenderTask.GetFrameBuffer();
 352       if(!currentFrameBuffer ||
 353          currentFrameBuffer.GetColorTexture().GetWidth() != size.width ||
 354          currentFrameBuffer.GetColorTexture().GetHeight() != size.height)
 355       {
 356         mRenderTask.ResetViewportGuideActor();
 357         mRenderTask.SetViewport(Dali::Viewport(Vector4::ZERO));
 358
 359         // create offscreen buffer of new size to render our child actors to
 360         mTexture      = Dali::Texture::New(TextureType::TEXTURE_2D, Pixel::RGBA8888, unsigned(size.width), unsigned(size.height));
 361         mRenderTarget = FrameBuffer::New(size.width, size.height, FrameBuffer::Attachment::DEPTH_STENCIL);
 362         mRenderTarget.AttachColorTexture(mTexture);
 363         Dali::Toolkit::ImageUrl imageUrl = Dali::Toolkit::Image::GenerateUrl(mRenderTarget, 0u);
 364
 365         Property::Map imagePropertyMap;
 366         imagePropertyMap.Insert(Toolkit::Visual::Property::TYPE, Toolkit::Visual::IMAGE);
 367         imagePropertyMap.Insert(Toolkit::ImageVisual::Property::URL, imageUrl.GetUrl());
 368         // To flip rendered scene without CameraActor::SetInvertYAxis() to avoid backface culling.
 369         imagePropertyMap.Insert(Toolkit::ImageVisual::Property::PIXEL_AREA, Vector4(0.0f, 1.0f, 1.0f, -1.0f));
 370         mVisual = Toolkit::VisualFactory::Get().CreateVisual(imagePropertyMap);
 371
 372         Toolkit::DevelControl::RegisterVisual(*this, RENDERING_BUFFER, mVisual);
 373
 374         mRenderTask.SetFrameBuffer(mRenderTarget);
 375         mRenderTask.SetClearEnabled(true);
 376         mRenderTask.SetClearColor(Color::TRANSPARENT);
 377       }
 378     }
 379     else
 380     {
 381       mRenderTask.SetViewportGuideActor(Self());
 382       if(mRenderTask.GetFrameBuffer())
 383       {
 384         FrameBuffer framebuffer;
 385         mRenderTask.SetFrameBuffer(framebuffer);
 386         mRenderTask.SetClearEnabled(false);
 387       }
 388     }
 389   }
 390 }
 391
 392 } // namespace Internal
 393 } // namespace Scene3D
 394 } // namespace Dali