[dali_2.3.19] Merge branch 'devel/master'

[platform/core/uifw/dali-toolkit.git] / dali-toolkit / internal / controls / page-turn-view / page-turn-book-spine-effect.h

diff --git a/dali-toolkit/internal/controls/page-turn-view/page-turn-book-spine-effect.h b/dali-toolkit/internal/controls/page-turn-view/page-turn-book-spine-effect.h
index efe112c..e5e95f8 100644 (file)
--- a/dali-toolkit/internal/controls/page-turn-view/page-turn-book-spine-effect.h
+++ b/dali-toolkit/internal/controls/page-turn-view/page-turn-book-spine-effect.h
@@ -1,8 +1,8 @@
-#ifndef __DALI_PAGE_TURN_BOOK_SPINE_EFFECT_H__
-#define __DALI_PAGE_TURN_BOOK_SPINE_EFFECT_H__
+#ifndef DALI_PAGE_TURN_BOOK_SPINE_EFFECT_H
+#define DALI_PAGE_TURN_BOOK_SPINE_EFFECT_H
 
 /*
- * Copyright (c) 2015 Samsung Electronics Co., Ltd.
+ * Copyright (c) 2021 Samsung Electronics Co., Ltd.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -18,74 +18,45 @@
  *
  */
 
-// EXTERNAL INCLUDES
-#include <dali/public-api/shader-effects/shader-effect.h>
+// INTERNAL INCLUDES
+#include <dali-toolkit/internal/graphics/builtin-shader-extern-gen.h>
+#include <dali-toolkit/public-api/visuals/visual-properties.h>
 
 namespace Dali
 {
-
 namespace Toolkit
 {
-
 namespace Internal
 {
-
 /**
  * @brief Creates a new PageTurnBookSpineEffect
  * This is an assisting effect of PageTurnEffect to display a book spine on _static_ pages, and also to flip the image horizontally when needed.
  *
  * When the page is turned over in landscape, call
  * SetIsBackImageVisible(true), this effect can display the back image
- * correctly after the imageActor been rotated 180 degrees.  To
+ * correctly after the page been rotated 180 degrees.  To
  * display the pages visually consistent with its turning state,
  * please set the uniforms with the same values as the PageTurnEffect.
  *
  * Animatable/Constrainable uniforms:
  *  "uSpineShadowParameter" - The two parameters are the major&minor radius (in pixels) to form an ellipse shape. The top-left
- *                            quarter of this ellipse is used to calculate spine normal for simulating shadow
- *  "uIsBackImageVisible"   - Set whether the current page is with its backside visible. Need to pass the parameter as true for
- *                            the page which is turned over but still visible in Landscape
- *  "uPageWidth"            - The page width of the PageTurnBookSpineEffect
+ *                            quarter of this ellipse is used to calculate spine normal for simulating shadow *
+ *  "uTextureWidth" - 1.0 for single sided page,
+ *                    2.0 for double sided image which has left half part as page front side and right half part as page back side.
  *
- * @return A handle to a newly allocated ShaderEffect
+ * @return The newly created Property::Map with the page turn book spine effect
  **/
-inline ShaderEffect CreatePageTurnBookSpineEffect()
+inline Property::Map CreatePageTurnBookSpineEffect()
 {
-  // the simplified version of the fragment shader of page turn effect
-  std::string fragmentSource = DALI_COMPOSE_SHADER(
-      precision mediump float;\n
-      uniform float uIsBackImageVisible;\n
-      uniform float uPageWidth;\n
-      uniform vec2 uSpineShadowParameter;\n
-      void main()\n
-      {\n
-      // flip the image horizontally by changing the x component of the texture coordinate
-        if( uIsBackImageVisible == 1.0 )\n
-          gl_FragColor = texture2D( sTexture, vec2( sTextureRect.p+sTextureRect.s-vTexCoord.x, vTexCoord.y ) ) * uColor; \n
-        else\n
-        gl_FragColor = texture2D( sTexture, vTexCoord ) * uColor;\n
-      // display book spine, a stripe of shadowed texture
-        float pixelPos = (vTexCoord.x-sTextureRect.s)*uPageWidth; \n
-        if(pixelPos < uSpineShadowParameter.x) \n
-        {\n
-          float x = pixelPos - uSpineShadowParameter.x;\n
-          float y = sqrt( uSpineShadowParameter.x*uSpineShadowParameter.x - x*x );\n
-          vec2 spineNormal = normalize(vec2(uSpineShadowParameter.y*x/uSpineShadowParameter.x, y));\n
-          gl_FragColor.rgb *= spineNormal.y; \n
-        }
-      } );
-
-  const Vector2 DEFAULT_SPINE_SHADOW_PARAMETER(50.0f, 20.0f);
-
-  ShaderEffect shaderEffect = ShaderEffect::New( "", fragmentSource );
+  Property::Map map;
 
-  shaderEffect.SetUniform( "uIsBackImageVisible", -1.f );
-  shaderEffect.SetUniform( "uSpineShadowParameter", DEFAULT_SPINE_SHADOW_PARAMETER );
+  Property::Map customShader;
 
-  float defaultPageWidth = Dali::Stage::GetCurrent().GetSize().x;
-  shaderEffect.SetUniform( "uPageWidth", defaultPageWidth );
+  customShader[Toolkit::Visual::Shader::Property::VERTEX_SHADER]   = SHADER_PAGE_TURN_BOOK_SPINE_EFFECT_VERT.data();
+  customShader[Toolkit::Visual::Shader::Property::FRAGMENT_SHADER] = SHADER_PAGE_TURN_BOOK_SPINE_EFFECT_FRAG.data();
 
-  return shaderEffect;
+  map[Toolkit::Visual::Property::SHADER] = customShader;
+  return map;
 }
 
 } //namespace Internal
@@ -94,4 +65,4 @@ inline ShaderEffect CreatePageTurnBookSpineEffect()
 
 } // namespace Dali
 
-#endif /* __DALI_PAGE_TURN_BOOK_SPINE_EFFECT_H__ */
+#endif // DALI_PAGE_TURN_BOOK_SPINE_EFFECT_H