Fix SVACE issue

[platform/core/uifw/dali-toolkit.git] / dali-toolkit / internal / visuals / text / text-visual.cpp

diff --git a/dali-toolkit/internal/visuals/text/text-visual.cpp b/dali-toolkit/internal/visuals/text/text-visual.cpp
index e894d2b..1171033 100755 (executable)
--- a/dali-toolkit/internal/visuals/text/text-visual.cpp
+++ b/dali-toolkit/internal/visuals/text/text-visual.cpp
@@ -68,14 +68,10 @@ const Vector4 FULL_TEXTURE_RECT( 0.f, 0.f, 1.f, 1.f );
 
 const char* VERTEX_SHADER = DALI_COMPOSE_SHADER(
   attribute mediump vec2 aPosition;\n
-  uniform mediump mat4 uMvpMatrix;\n
+  uniform highp   mat4 uMvpMatrix;\n
   uniform mediump vec3 uSize;\n
   uniform mediump vec4 pixelArea;\n
 
-  uniform mediump mat4 uModelMatrix;\n
-  uniform mediump mat4 uViewMatrix;\n
-  uniform mediump mat4 uProjection;\n
-
   varying mediump vec2 vTexCoord;\n
 
   //Visual size and offset
@@ -94,12 +90,8 @@ const char* VERTEX_SHADER = DALI_COMPOSE_SHADER(
 
   void main()\n
   {\n
-    mediump vec4 nonAlignedVertex = uViewMatrix*uModelMatrix*ComputeVertexPosition();\n
-    mediump vec4 pixelAlignedVertex = vec4 ( floor(nonAlignedVertex.xyz), 1.0 );\n
-    mediump vec4 vertexPosition = uProjection*pixelAlignedVertex;\n
-
+    gl_Position = uMvpMatrix * ComputeVertexPosition();\n
     vTexCoord = pixelArea.xy+pixelArea.zw*(aPosition + vec2(0.5) );\n
-    gl_Position = vertexPosition;\n
   }\n
 );
 
@@ -109,7 +101,6 @@ const char* FRAGMENT_SHADER_SINGLE_COLOR_TEXT = DALI_COMPOSE_SHADER(
   uniform lowp vec4 uTextColorAnimatable;\n
   uniform lowp vec4 uColor;\n
   uniform lowp vec3 mixColor;\n
-  uniform lowp float preMultipliedAlpha;\n
   \n
   void main()\n
   {\n
@@ -125,12 +116,10 @@ const char* FRAGMENT_SHADER_MULTI_COLOR_TEXT = DALI_COMPOSE_SHADER(
   uniform sampler2D sTexture;\n
   uniform lowp vec4 uColor;\n
   uniform lowp vec3 mixColor;\n
-  uniform lowp float preMultipliedAlpha;\n
   \n
   void main()\n
   {\n
     mediump vec4 textTexture = texture2D( sTexture, vTexCoord );\n
-    textTexture.rgb *= mix( 1.0, textTexture.a, preMultipliedAlpha );\n
 
     gl_FragColor = textTexture * uColor * vec4( mixColor, 1.0 );
   }\n
@@ -143,7 +132,6 @@ const char* FRAGMENT_SHADER_SINGLE_COLOR_TEXT_WITH_STYLE = DALI_COMPOSE_SHADER(
   uniform lowp vec4 uTextColorAnimatable;\n
   uniform lowp vec4 uColor;\n
   uniform lowp vec3 mixColor;\n
-  uniform lowp float preMultipliedAlpha;\n
   \n
   void main()\n
   {\n
@@ -151,7 +139,7 @@ const char* FRAGMENT_SHADER_SINGLE_COLOR_TEXT_WITH_STYLE = DALI_COMPOSE_SHADER(
     mediump vec4 styleTexture = texture2D( sStyle, vTexCoord );\n
 
     // Draw the text as overlay above the style
-    gl_FragColor = ( uTextColorAnimatable * textTexture + styleTexture * ( 1.0 - textTexture ) ) * uColor * vec4( mixColor, 1.0 );\n
+    gl_FragColor = ( uTextColorAnimatable * textTexture + styleTexture * ( 1.0 - uTextColorAnimatable.a * textTexture ) ) * uColor * vec4( mixColor, 1.0 );\n
   }\n
 );
 
@@ -161,13 +149,11 @@ const char* FRAGMENT_SHADER_MULTI_COLOR_TEXT_WITH_STYLE = DALI_COMPOSE_SHADER(
   uniform sampler2D sStyle;\n
   uniform lowp vec4 uColor;\n
   uniform lowp vec3 mixColor;\n
-  uniform lowp float preMultipliedAlpha;\n
   \n
   void main()\n
   {\n
     mediump vec4 textTexture = texture2D( sTexture, vTexCoord );\n
     mediump vec4 styleTexture = texture2D( sStyle, vTexCoord );\n
-    textTexture.rgb *= mix( 1.0, textTexture.a, preMultipliedAlpha );\n
 
     // Draw the text as overlay above the style
     gl_FragColor = ( textTexture + styleTexture * ( 1.0 - textTexture.a ) ) * uColor * vec4( mixColor, 1.0 );\n
@@ -181,7 +167,6 @@ const char* FRAGMENT_SHADER_SINGLE_COLOR_TEXT_WITH_EMOJI = DALI_COMPOSE_SHADER(
   uniform lowp vec4 uTextColorAnimatable;\n
   uniform lowp vec4 uColor;\n
   uniform lowp vec3 mixColor;\n
-  uniform lowp float preMultipliedAlpha;\n
   \n
   void main()\n
   {\n
@@ -192,7 +177,7 @@ const char* FRAGMENT_SHADER_SINGLE_COLOR_TEXT_WITH_EMOJI = DALI_COMPOSE_SHADER(
     // Markup text with multiple text colors are not animated (but can be supported later on if required).
     // Emoji color are not animated.
     mediump float vstep = step( 0.0001, textTexture.a );\n
-    textTexture.rgb = mix( textTexture.rgb, uTextColorAnimatable.rgb, vstep * maskTexture ) * mix( 1.0, textTexture.a, preMultipliedAlpha );\n
+    textTexture.rgb = mix( textTexture.rgb, uTextColorAnimatable.rgb, vstep * maskTexture );\n
 
     // Draw the text as overlay above the style
     gl_FragColor = textTexture * uColor * vec4( mixColor, 1.0 );\n
@@ -208,7 +193,6 @@ const char* FRAGMENT_SHADER_SINGLE_COLOR_TEXT_WITH_STYLE_AND_EMOJI = DALI_COMPOS
   uniform lowp vec4 uTextColorAnimatable;\n
   uniform lowp vec4 uColor;\n
   uniform lowp vec3 mixColor;\n
-  uniform lowp float preMultipliedAlpha;\n
   \n
   void main()\n
   {\n
@@ -220,7 +204,7 @@ const char* FRAGMENT_SHADER_SINGLE_COLOR_TEXT_WITH_STYLE_AND_EMOJI = DALI_COMPOS
     // Markup text with multiple text colors are not animated (but can be supported later on if required).
     // Emoji color are not animated.
     mediump float vstep = step( 0.0001, textTexture.a );\n
-    textTexture.rgb = mix( textTexture.rgb, uTextColorAnimatable.rgb, vstep * maskTexture * ( 1.0 - uHasMultipleTextColors ) ) * mix( 1.0, textTexture.a, preMultipliedAlpha );\n
+    textTexture.rgb = mix( textTexture.rgb, uTextColorAnimatable.rgb, vstep * maskTexture * ( 1.0 - uHasMultipleTextColors ) );\n
 
     // Draw the text as overlay above the style
     gl_FragColor = ( textTexture + styleTexture * ( 1.0 - textTexture.a ) ) * uColor * vec4( mixColor, 1.0 );\n
@@ -297,9 +281,26 @@ Dali::Property::Index StringKeyToIndexKey( const std::string& stringKey )
   return result;
 }
 
+void TextColorConstraint( Vector4& current, const PropertyInputContainer& inputs )
+{
+  Vector4 color = inputs[0]->GetVector4();
+  current.r = color.r * color.a;
+  current.g = color.g * color.a;
+  current.b = color.b * color.a;
+  current.a = color.a;
+}
+
 void OpacityConstraint( float& current, const PropertyInputContainer& inputs )
 {
-  current = inputs[0]->GetVector4().a;
+  // Make zero if the alpha value of text color is zero to skip rendering text
+  if( EqualsZero( inputs[0]->GetVector4().a ) )
+  {
+    current = 0.0f;
+  }
+  else
+  {
+    current = 1.0f;
+  }
 }
 
 } // unnamed namespace
@@ -453,10 +454,11 @@ void TextVisual::DoSetOnStage( Actor& actor )
     // Create constraint for the animatable text's color Property with uTextColorAnimatable in the renderer.
     if( shaderTextColorIndex != Property::INVALID_INDEX )
     {
-      Constraint colorConstraint = Constraint::New<Vector4>( mImpl->mRenderer, shaderTextColorIndex, EqualToConstraint() );
+      Constraint colorConstraint = Constraint::New<Vector4>( mImpl->mRenderer, shaderTextColorIndex, TextColorConstraint );
       colorConstraint.AddSource( Source( actor, mAnimatableTextColorPropertyIndex ) );
       colorConstraint.Apply();
 
+      // Make zero if the alpha value of text color is zero to skip rendering text
       Constraint opacityConstraint = Constraint::New< float >( mImpl->mRenderer, Dali::DevelRenderer::Property::OPACITY, OpacityConstraint );
       opacityConstraint.AddSource( Source( actor, mAnimatableTextColorPropertyIndex ) );
       opacityConstraint.Apply();
@@ -624,7 +626,9 @@ void TextVisual::UpdateRenderer()
     return;
   }
 
-  const Text::Controller::UpdateTextType updateTextType = mController->Relayout( relayoutSize );
+  Dali::LayoutDirection::Type layoutDirection = static_cast<Dali::LayoutDirection::Type>( control.GetProperty( Dali::Actor::Property::LAYOUT_DIRECTION ).Get<int>() );
+
+  const Text::Controller::UpdateTextType updateTextType = mController->Relayout( relayoutSize, layoutDirection );
 
   if( Text::Controller::NONE_UPDATED != ( Text::Controller::MODEL_UPDATED & updateTextType )
    || mRendererUpdateNeeded )