1 #ifndef __DALI_TOOLKIT_INTERNAL_BUBBLE_EMITTER_IMPL_H__
2 #define __DALI_TOOLKIT_INTERNAL_BUBBLE_EMITTER_IMPL_H__
5 * Copyright (c) 2015 Samsung Electronics Co., Ltd.
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
22 #include <dali/public-api/actors/camera-actor.h>
23 #include <dali/public-api/actors/image-actor.h>
24 #include <dali/public-api/common/stage.h>
25 #include <dali/public-api/images/frame-buffer-image.h>
26 #include <dali/public-api/render-tasks/render-task.h>
27 #include <dali/devel-api/object/property-buffer.h>
28 #include <dali/devel-api/rendering/geometry.h>
29 #include <dali/devel-api/rendering/renderer.h>
30 #include <dali/devel-api/rendering/sampler.h>
31 #include <dali/devel-api/rendering/shader.h>
34 #include <dali-toolkit/public-api/controls/control-impl.h>
35 #include <dali-toolkit/devel-api/controls/bubble-effect/bubble-emitter.h>
47 typedef IntrusivePtr<BubbleActor> BubbleActorPtr;
50 * BubbleEmitter implementation class.
52 class BubbleEmitter : public Control
62 * @copydoc Toolkit::BubbleEmitter::New
64 static Toolkit::BubbleEmitter New( const Vector2& winSize,
66 unsigned int maximumNumberOfBubble,
67 const Vector2& bubbleSizeRange );
70 * @copydoc Toolkit::BubbleEmitter::GetRootActor
75 * @copydoc Toolkit::BubbleEmitter::SetBackground
77 void SetBackground( Image bgImage, const Vector3& hsvDelta );
80 * @copydoc Toolkit::BubbleEmitter::SetShapeImage
82 void SetShapeImage( Image shapeImage );
85 * @copydoc Toolkit::BubbleEmiter::SetBubbleScale
87 void SetBubbleScale( float scale );
90 * @copydoc Toolkit::BubbleEmitter::SetBubbleDensity
92 void SetBubbleDensity( unsigned int density );
95 * @copydoc Toolkit::BubbleEmitter::SetBlendMode
97 void SetBlendMode( bool enable );
100 * @copydoc Toolkit::BubbleEmitter::EmitBubble
102 void EmitBubble( Animation& animation, const Vector2& emitPosition, const Vector2& direction, const Vector2& displacement );
105 * @copydoc Toolkit::BubbleEmitter::Restore
112 * Construct a new BubbleEmitter object.
113 * @param[in] movementArea The size of the bubble moving area
114 * @param[in] shapeImage The alpha channnel of this texture defines the bubble shape.
115 * @param[in] maximumNumberOfBubble The maximum number of bubble needed.
116 * @param[in] bubbleSizeRange The size range of the bubbles; x component is the minimal size, and y component is the maximum size.
118 BubbleEmitter( const Vector2& movementArea,
120 unsigned int maximumNumberOfBubble,
121 const Vector2& bubbleSizeRange );
124 * This method is called after the CubeTransitionEffect has been initialized.
125 * The meshActors and BubbleEffects are created here.
130 * Create the geometry of a mesh.
131 * @param[in] numOfPatch The triangle number in the mesh is 2*numOfPatch; two triangles for each bubble.
132 * @return The mesh geometry.
134 Geometry CreateGeometry( unsigned int numOfPatch );
137 * Callback function of the finished signal of off-screen render task.
138 * @param[in] source The render task used to create the color adjusted background image.
140 void OnRenderFinished(RenderTask& source);
143 * Callback function from Stage to tell us if the context has been regained.
145 void OnContextRegained();
148 * Set the uniform values to the shader effect to emit a bubble
149 * @param[in] bubbleActor The BubbleActor to render the current bubble
150 * @param[in] curUniform The index of the uniform array in the shader
151 * @param[in] emitPosition The start position of the bubble movement.
152 * @param[in] direction The direction used to constrain the bubble to move in an adjacent direction around it.
153 * @param[in] displacement The displacement used to bound the moving distance of the bubble.
155 void SetBubbleParameter( BubbleActorPtr bubbleActor, unsigned int curUniform,
156 const Vector2& emitPosition, const Vector2& direction, const Vector2& displacement );
160 Actor mBubbleRoot; ///<The bubble root actor. Need to add it to stage to get the bubbles rendered.
161 Image mShapeImage; ///< The alpha channnel of this texture defines the bubble shape.
162 Image mBackgroundImage; ///< The original background image
163 FrameBufferImage mEffectImage; ///< The image stores the adjusted color of the background image.The bubbles pick color from this image.
164 CameraActor mCameraActor; ///< The render task views the scene from the perspective of this actor.
166 Geometry mMeshGeometry; ///< The mesh geometry which contains the vertices and indices data
167 Material mMaterial; ///< The material which controls the bubble display
168 std::vector<BubbleActorPtr> mBubbleActors; ///< The meshActor vector, its size is mNumShader.
170 Vector2 mMovementArea; ///< The size of the bubble moving area, usually the same size as the background image actor.
171 Vector2 mBubbleSizeRange; ///< The size range of the bubbles; x component is the low bound, and y component is the up bound.
172 Vector3 mHSVDelta; ///< The HSV difference used to adjust the background image color.
174 unsigned int mNumBubblePerActor; ///< How many bubbles for each BubbleActor.
175 unsigned int mNumActor; ///< How many BubbleActors are used.
176 unsigned int mDensity; ///< How many bubbles will emit at each time, they are controlled by same uniforms in the shader.
177 unsigned int mTotalNumOfBubble; ///< mNumBubblePerShader*mNumShader.
178 unsigned int mCurrentBubble; ///< Keep track of the index for the newly emitted bubble
179 unsigned int mRandomSeed; ///< Seed to generate random number.
181 bool mRenderTaskRunning; ///< If the background render task is currently running
185 } // namespace Internal
187 // Helpers for public-api forwarding methods
188 inline Internal::BubbleEmitter& GetImpl(Dali::Toolkit::BubbleEmitter& obj)
190 DALI_ASSERT_ALWAYS(obj && "BubbleEmitter handle is empty");
191 Dali::RefObject& handle = obj.GetImplementation();
192 return static_cast<Toolkit::Internal::BubbleEmitter&>(handle);
195 inline const Internal::BubbleEmitter& GetImpl(const Dali::Toolkit::BubbleEmitter& obj)
197 DALI_ASSERT_ALWAYS(obj && "BubbleEmitter handle is empty");
198 const Dali::RefObject& handle = obj.GetImplementation();
199 return static_cast<const Toolkit::Internal::BubbleEmitter&>(handle);
202 } // namespace Toolkit
206 #endif /* __DALI_TOOLKIT_INTERNAL_BUBBLE_EMITTER_IMPL_H__ */