uniform lowp vec4 uColor;\n
uniform lowp vec3 mixColor;\n
uniform lowp float opacity;\n
+ uniform lowp float preMultipliedAlpha;\n
+ \n
+ lowp vec4 visualMixColor()\n
+ {\n
+ return vec4( mixColor * mix( 1.0, opacity, preMultipliedAlpha ), opacity );\n
+ }\n
\n
void main()\n
{\n
mediump float textTexture = texture2D( sTexture, texCoord ).r;\n
// Set the color of the text to what it is animated to.
- gl_FragColor = uTextColorAnimatable * textTexture * uColor * vec4( mixColor, opacity );
+ gl_FragColor = uTextColorAnimatable * textTexture * uColor * visualMixColor();
}\n
);
uniform lowp vec4 uColor;\n
uniform lowp vec3 mixColor;\n
uniform lowp float opacity;\n
+ uniform lowp float preMultipliedAlpha;\n
+ \n
+ lowp vec4 visualMixColor()\n
+ {\n
+ return vec4( mixColor * mix( 1.0, opacity, preMultipliedAlpha ), opacity );\n
+ }\n
\n
void main()\n
{\n
mediump vec2 texCoord = clamp( mix( uAtlasRect.xy, uAtlasRect.zw, vTexCoord ), uAtlasRect.xy, uAtlasRect.zw );\n
mediump vec4 textTexture = texture2D( sTexture, texCoord );\n
+ textTexture.rgb *= mix( 1.0, textTexture.a, preMultipliedAlpha );\n
- gl_FragColor = textTexture * uColor * vec4( mixColor, opacity );
+ gl_FragColor = textTexture * uColor * visualMixColor();
}\n
);
uniform lowp vec4 uColor;\n
uniform lowp vec3 mixColor;\n
uniform lowp float opacity;\n
+ uniform lowp float preMultipliedAlpha;\n
+ \n
+ lowp vec4 visualMixColor()\n
+ {\n
+ return vec4( mixColor * mix( 1.0, opacity, preMultipliedAlpha ), opacity );\n
+ }\n
\n
void main()\n
{\n
mediump vec4 styleTexture = texture2D( sStyle, texCoord );\n
// Draw the text as overlay above the style
- gl_FragColor = ( uTextColorAnimatable * textTexture + styleTexture * ( 1.0 - textTexture ) ) * uColor * vec4( mixColor, opacity );\n
+ gl_FragColor = ( uTextColorAnimatable * textTexture + styleTexture * ( 1.0 - textTexture ) ) * uColor * visualMixColor();\n
}\n
);
uniform lowp vec4 uColor;\n
uniform lowp vec3 mixColor;\n
uniform lowp float opacity;\n
+ uniform lowp float preMultipliedAlpha;\n
+ \n
+ lowp vec4 visualMixColor()\n
+ {\n
+ return vec4( mixColor * mix( 1.0, opacity, preMultipliedAlpha ), opacity );\n
+ }\n
\n
void main()\n
{\n
mediump vec2 texCoord = clamp( mix( uAtlasRect.xy, uAtlasRect.zw, vTexCoord ), uAtlasRect.xy, uAtlasRect.zw );\n
mediump vec4 textTexture = texture2D( sTexture, texCoord );\n
mediump vec4 styleTexture = texture2D( sStyle, texCoord );\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, opacity );\n
+ gl_FragColor = ( textTexture + styleTexture * ( 1.0 - textTexture.a ) ) * uColor * visualMixColor();\n
}\n
);
uniform lowp vec4 uColor;\n
uniform lowp vec3 mixColor;\n
uniform lowp float opacity;\n
+ uniform lowp float preMultipliedAlpha;\n
+ \n
+ lowp vec4 visualMixColor()\n
+ {\n
+ return vec4( mixColor * mix( 1.0, opacity, preMultipliedAlpha ), opacity );\n
+ }\n
\n
void main()\n
{\n
// 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 );\n
+ textTexture.rgb = mix( textTexture.rgb, uTextColorAnimatable.rgb, vstep * maskTexture ) * mix( 1.0, textTexture.a, preMultipliedAlpha );\n
// Draw the text as overlay above the style
- gl_FragColor = textTexture * uColor * vec4( mixColor, opacity );\n
+ gl_FragColor = textTexture * uColor * visualMixColor();\n
}\n
);
uniform lowp vec4 uColor;\n
uniform lowp vec3 mixColor;\n
uniform lowp float opacity;\n
+ uniform lowp float preMultipliedAlpha;\n
+ \n
+ lowp vec4 visualMixColor()\n
+ {\n
+ return vec4( mixColor * mix( 1.0, opacity, preMultipliedAlpha ), opacity );\n
+ }\n
\n
void main()\n
{\n
// 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 ) );\n
+ textTexture.rgb = mix( textTexture.rgb, uTextColorAnimatable.rgb, vstep * maskTexture * ( 1.0 - uHasMultipleTextColors ) ) * 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, opacity );\n
+ gl_FragColor = ( textTexture + styleTexture * ( 1.0 - textTexture.a ) ) * uColor * visualMixColor();\n
}\n
);
mImpl->mRenderer = Renderer::New( geometry, shader );
mImpl->mRenderer.SetProperty( Dali::Renderer::Property::DEPTH_INDEX, Toolkit::DepthIndex::CONTENT );
+ // Enable the pre-multiplied alpha to improve the text quality
+ EnablePreMultipliedAlpha(true);
+
const Vector4& defaultColor = mController->GetTextModel()->GetDefaultColor();
Dali::Property::Index shaderTextColorIndex = mImpl->mRenderer.RegisterProperty( "uTextColorAnimatable", defaultColor );
mImpl->mRenderer.RegisterProperty( "uHasMultipleTextColors", static_cast<float>( hasMultipleTextColors ) );
mImpl->mRenderer.SetProperty( Renderer::Property::BLEND_MODE, BlendMode::ON);
- mImpl->mRenderer.SetProperty( Renderer::Property::BLEND_PRE_MULTIPLIED_ALPHA, true );
//Register transform properties
mImpl->mTransform.RegisterUniforms( mImpl->mRenderer, Direction::LEFT_TO_RIGHT );