if( ( 0 > yOffsetIndex ) || ( yOffsetIndex > heightMinusOne ) )
{
// Do not write out of bounds.
- break;
+ continue;
}
const int verticalOffset = yOffsetIndex * data.width;
if( ( 0 > xOffsetIndex ) || ( xOffsetIndex > widthMinusOne ) )
{
// Don't write out of bounds.
- break;
+ continue;
}
uint32_t* bitmapBuffer = reinterpret_cast< uint32_t* >( data.bitmapBuffer.GetBuffer() );
}
// Update the alpha channel.
- if( Typesetter::STYLE_MASK == style )
+ if( Typesetter::STYLE_MASK == style || Typesetter::STYLE_OUTLINE == style ) // Outline not shown for color glyph
{
// Create an alpha mask for color glyph.
*( packedColorGlyphBuffer + 3u ) = 0u;
}
else
{
+ // Whether the given glyph is a color one.
+ const bool isColorGlyph = Pixel::BGRA8888 == data.glyphBitmap.format;
+
// Initial vertical offset.
const int yOffset = data.verticalOffset + position->y;
if( ( 0 > yOffsetIndex ) || ( yOffsetIndex > heightMinusOne ) )
{
// Do not write out of bounds.
- break;
+ continue;
}
const int verticalOffset = yOffsetIndex * data.width;
if( ( 0 > xOffsetIndex ) || ( xOffsetIndex > widthMinusOne ) )
{
// Don't write out of bounds.
- break;
+ continue;
}
uint8_t* bitmapBuffer = reinterpret_cast< uint8_t* >( data.bitmapBuffer.GetBuffer() );
- // Update the alpha channel.
- const uint8_t alpha = *( data.glyphBitmap.buffer + glyphBufferOffset + index );
-
- // Copy non-transparent pixels only
- if ( alpha > 0u )
+ if ( !isColorGlyph )
{
- // Check alpha of overlapped pixels
- uint8_t& currentAlpha = *( bitmapBuffer + verticalOffset + xOffsetIndex );
- uint8_t newAlpha = static_cast<uint8_t>( color->a * static_cast<float>( alpha ) );
-// printf("y: %d, x: %d: alpha: %u, currentAlpha: %u, newAlpha: %u, a: %u\n", yOffsetIndex, xOffsetIndex, alpha, currentAlpha, newAlpha, std::max( currentAlpha, newAlpha ) );
-
- // For any pixel overlapped with the pixel in previous glyphs, make sure we don't
- // overwrite a previous bigger alpha with a smaller alpha (in order to avoid
- // semi-transparent gaps between joint glyphs with overlapped pixels, which could
- // happen, for example, in the RTL text when we copy glyphs from right to left).
- *( bitmapBuffer + verticalOffset + xOffsetIndex ) = std::max( currentAlpha, newAlpha );
+ // Update the alpha channel.
+ const uint8_t alpha = *( data.glyphBitmap.buffer + glyphBufferOffset + index );
+
+ // Copy non-transparent pixels only
+ if ( alpha > 0u )
+ {
+ // Check alpha of overlapped pixels
+ uint8_t& currentAlpha = *( bitmapBuffer + verticalOffset + xOffsetIndex );
+ uint8_t newAlpha = static_cast<uint8_t>( color->a * static_cast<float>( alpha ) );
+
+ // For any pixel overlapped with the pixel in previous glyphs, make sure we don't
+ // overwrite a previous bigger alpha with a smaller alpha (in order to avoid
+ // semi-transparent gaps between joint glyphs with overlapped pixels, which could
+ // happen, for example, in the RTL text when we copy glyphs from right to left).
+ *( bitmapBuffer + verticalOffset + xOffsetIndex ) = std::max( currentAlpha, newAlpha );
+ }
}
}
}
switch( mModel->GetVerticalAlignment() )
{
- case Layout::VERTICAL_ALIGN_TOP:
+ case VerticalAlignment::TOP:
{
// No offset to add.
break;
}
- case Layout::VERTICAL_ALIGN_CENTER:
+ case VerticalAlignment::CENTER:
{
penY = static_cast<int>( 0.5f * ( size.height - layoutSize.height ) );
break;
}
- case Layout::VERTICAL_ALIGN_BOTTOM:
+ case VerticalAlignment::BOTTOM:
{
penY = static_cast<int>( size.height - layoutSize.height );
break;
if ( ( RENDER_NO_STYLES != behaviour ) && ( RENDER_MASK != behaviour ) )
{
+
+ // Generate the outline if enabled
+ const float outlineWidth = mModel->GetOutlineWidth();
+ if ( outlineWidth > Math::MACHINE_EPSILON_1 )
+ {
+ // Create the image buffer for outline
+ Devel::PixelBuffer outlineImageBuffer = CreateImageBuffer( bufferWidth, bufferHeight, Typesetter::STYLE_OUTLINE, ignoreHorizontalAlignment, pixelFormat, penY, 0u, numberOfGlyphs -1 );
+
+ // Combine the two buffers
+ imageBuffer = CombineImageBuffer( imageBuffer, outlineImageBuffer, bufferWidth, bufferHeight );
+ }
+
// @todo. Support shadow and underline for partial text later on.
// Generate the shadow if enabled
// Create the image buffer for shadow
Devel::PixelBuffer shadowImageBuffer = CreateImageBuffer( bufferWidth, bufferHeight, Typesetter::STYLE_SHADOW, ignoreHorizontalAlignment, pixelFormat, penY, 0u, numberOfGlyphs - 1 );
+ // Check whether it will be a soft shadow
+ const float& blurRadius = mModel->GetShadowBlurRadius();
+
+ if ( blurRadius > Math::MACHINE_EPSILON_1 )
+ {
+ shadowImageBuffer.ApplyGaussianBlur( blurRadius );
+ }
+
// Combine the two buffers
imageBuffer = CombineImageBuffer( imageBuffer, shadowImageBuffer, bufferWidth, bufferHeight );
}
glyphData.width = bufferWidth;
glyphData.height = bufferHeight;
glyphData.bitmapBuffer = Devel::PixelBuffer::New( bufferWidth, bufferHeight, pixelFormat );
+ glyphData.horizontalOffset = 0;
if ( Pixel::RGBA8888 == pixelFormat )
{
// Increases the vertical offset with the line's ascender.
glyphData.verticalOffset += static_cast<int>( line.ascender );
- if ( style == Typesetter::STYLE_SHADOW )
+ // Retrieves the glyph's outline width
+ float outlineWidth = mModel->GetOutlineWidth();
+
+ if( style == Typesetter::STYLE_OUTLINE )
+ {
+ glyphData.horizontalOffset -= outlineWidth;
+ if( lineIndex == 0u )
+ {
+ // Only need to add the vertical outline offset for the first line
+ glyphData.verticalOffset -= outlineWidth;
+ }
+ }
+ else if ( style == Typesetter::STYLE_SHADOW )
{
const Vector2& shadowOffset = mModel->GetShadowOffset();
- glyphData.horizontalOffset += shadowOffset.x;
+ glyphData.horizontalOffset += shadowOffset.x - outlineWidth; // if outline enabled then shadow should offset from outline
+
if ( lineIndex == 0u )
{
- // Only need to add the vertical shadow offset for once
- glyphData.verticalOffset += shadowOffset.y;
+ // Only need to add the vertical shadow offset for first line
+ glyphData.verticalOffset += shadowOffset.y - outlineWidth;
}
}
{
color = &( mModel->GetShadowColor() );
}
+ else if ( style == Typesetter::STYLE_OUTLINE )
+ {
+ color = &( mModel->GetOutlineColor() );
+ }
else
{
color = ( useDefaultColor || ( 0u == colorIndex ) ) ? &defaultColor : colorsBuffer + ( colorIndex - 1u );
glyphData.glyphBitmap.buffer = NULL;
glyphData.glyphBitmap.width = glyphInfo->width; // Desired width and height.
glyphData.glyphBitmap.height = glyphInfo->height;
- fontClient.CreateBitmap( glyphInfo->fontId,
- glyphInfo->index,
- glyphData.glyphBitmap );
+
+ if( style != Typesetter::STYLE_OUTLINE && style != Typesetter::STYLE_SHADOW )
+ {
+ // Don't render outline for other styles
+ outlineWidth = 0.0f;
+ }
+ if( style != Typesetter::STYLE_UNDERLINE )
+ {
+ fontClient.CreateBitmap( glyphInfo->fontId,
+ glyphInfo->index,
+ glyphData.glyphBitmap,
+ outlineWidth );
+ }
+
// Sets the glyph's bitmap into the bitmap of the whole text.
if( NULL != glyphData.glyphBitmap.buffer )
for( unsigned int y = underlineYOffset; y < underlineYOffset + maxUnderlineThickness; y++ )
{
- if( ( y < 0 ) || ( y > bufferHeight - 1 ) )
+ if( y > bufferHeight - 1 )
{
// Do not write out of bounds.
break;
for( unsigned int x = glyphData.horizontalOffset + lineExtentLeft; x <= glyphData.horizontalOffset + lineExtentRight; x++ )
{
- if( ( x < 0 ) || ( x > bufferWidth - 1 ) )
+ if( x > bufferWidth - 1 )
{
// Do not write out of bounds.
break;