#include <dali-toolkit/internal/text/rendering/atlas/text-atlas-renderer.h>
// EXTERNAL INCLUDES
-#include <math.h>
#include <dali/dali.h>
#include <dali/integration-api/debug.h>
+#include <dali/public-api/text-abstraction/text-abstraction.h>
// INTERNAL INCLUDES
#include <dali-toolkit/internal/atlas-manager/atlas-manager.h>
const float HALF( 0.5f );
const float ONE( 1.0f );
const float TWO( 2.0f );
- const Vector2 DEFAULT_ATLAS_SIZE( 512.0f, 512.0f );
- const Vector2 DEFAULT_BLOCK_SIZE( 16.0f, 16.0f );
- const Vector2 PADDING( 4.0f, 4.0f ); // Allow for variation in font glyphs
+ const uint32_t DEFAULT_ATLAS_WIDTH = 512u;
+ const uint32_t DEFAULT_ATLAS_HEIGHT = 512u;
}
struct AtlasRenderer::Impl : public ConnectionTracker
struct MaxBlockSize
{
FontId mFontId;
- Vector2 mNeededBlockSize;
+ uint32_t mNeededBlockWidth;
+ uint32_t mNeededBlockHeight;
};
Impl()
{
mGlyphManager = AtlasGlyphManager::Get();
mFontClient = TextAbstraction::FontClient::Get();
- mGlyphManager.SetNewAtlasSize( DEFAULT_ATLAS_SIZE, DEFAULT_BLOCK_SIZE );
mBasicShader = BasicShader::New();
mBgraShader = BgraShader::New();
mBasicShadowShader = BasicShadowShader::New();
float currentUnderlinePosition = ZERO;
float currentUnderlineThickness = underlineHeight;
-
+ uint32_t currentBlockSize = 0;
FontId lastFontId = 0;
Style style = STYLE_NORMAL;
// We need to fetch fresh font underline metrics
FontMetrics fontMetrics;
mFontClient.GetFontMetrics( glyph.fontId, fontMetrics );
- currentUnderlinePosition = FontMetricsRoundUp( fabsf( fontMetrics.underlinePosition ) );
- float descender = FontMetricsRoundUp( fabsf( fontMetrics.descender ) );
+ currentUnderlinePosition = ceil( fabsf( fontMetrics.underlinePosition ) );
+ float descender = ceil( fabsf( fontMetrics.descender ) );
if ( underlineHeight == ZERO )
{
}
else
{
- currentUnderlineThickness = FontMetricsRoundUp( currentUnderlineThickness );
+ currentUnderlineThickness = ceil( currentUnderlineThickness );
}
}
{
if ( mBlockSizes[ j ].mFontId == glyph.fontId )
{
- mGlyphManager.SetNewAtlasSize( DEFAULT_ATLAS_SIZE, mBlockSizes[ j ].mNeededBlockSize );
+ currentBlockSize = j;
+ mGlyphManager.SetNewAtlasSize( DEFAULT_ATLAS_WIDTH,
+ DEFAULT_ATLAS_HEIGHT,
+ mBlockSizes[ j ].mNeededBlockWidth,
+ mBlockSizes[ j ].mNeededBlockHeight );
}
}
}
- // Glyph doesn't currently exist in atlas so upload
+ // Create a new image for the glyph
BufferImage bitmap = mFontClient.CreateBitmap( glyph.fontId, glyph.index );
+ if ( bitmap )
+ {
+ // Ensure that the next image will fit into the current block size
+ bool setSize = false;
+ if ( bitmap.GetWidth() > mBlockSizes[ currentBlockSize ].mNeededBlockWidth )
+ {
+ setSize = true;
+ mBlockSizes[ currentBlockSize ].mNeededBlockWidth = bitmap.GetWidth();
+ }
+ if ( bitmap.GetHeight() > mBlockSizes[ currentBlockSize ].mNeededBlockHeight )
+ {
+ setSize = true;
+ mBlockSizes[ currentBlockSize ].mNeededBlockHeight = bitmap.GetHeight();
+ }
+
+ if ( setSize )
+ {
+ mGlyphManager.SetNewAtlasSize( DEFAULT_ATLAS_WIDTH,
+ DEFAULT_ATLAS_HEIGHT,
+ mBlockSizes[ currentBlockSize ].mNeededBlockWidth,
+ mBlockSizes[ currentBlockSize ].mNeededBlockHeight );
+ }
- // Locate a new slot for our glyph
- mGlyphManager.Add( glyph, bitmap, slot );
+ // Locate a new slot for our glyph
+ mGlyphManager.Add( glyph, bitmap, slot );
- // Generate mesh data for this quad, plugging in our supplied position
- if ( slot.mImageId )
- {
- mGlyphManager.GenerateMeshData( slot.mImageId, position, newMeshData );
- mImageIds.PushBack( slot.mImageId );
+ // Generate mesh data for this quad, plugging in our supplied position
+ if ( slot.mImageId )
+ {
+ mGlyphManager.GenerateMeshData( slot.mImageId, position, newMeshData );
+ mImageIds.PushBack( slot.mImageId );
+ }
}
}
// Find an existing mesh data object to attach to ( or create a new one, if we can't find one using the same atlas)
currentUnderlinePosition,
currentUnderlineThickness,
slot );
+ lastFontId = glyph.fontId;
}
- lastFontId = glyph.fontId;
}
if ( underlineEnabled )
{
MeshActor actor = MeshActor::New( Mesh::New( mIt->mMeshData ) );
actor.SetColor( mIt->mColor );
+
+ // Ensure that text rendering is unfiltered
+ actor.SetFilterMode( FilterMode::NEAREST, FilterMode::NEAREST );
if ( mIt->mIsUnderline )
{
actor.SetColorMode( USE_OWN_COLOR );
}
#if defined(DEBUG_ENABLED)
Toolkit::AtlasGlyphManager::Metrics metrics = mGlyphManager.GetMetrics();
- DALI_LOG_INFO( gLogFilter, Debug::Concise, "TextAtlasRenderer::GlyphManager::GlyphCount: %i, AtlasCount: %i, TextureMemoryUse: %iK\n",
+ DALI_LOG_INFO( gLogFilter, Debug::General, "TextAtlasRenderer::GlyphManager::GlyphCount: %i, AtlasCount: %i, TextureMemoryUse: %iK\n",
metrics.mGlyphCount,
metrics.mAtlasMetrics.mAtlasCount,
metrics.mAtlasMetrics.mTextureMemoryUsed / 1024 );
DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Atlas [%i] %sPixels: %s Size: %ix%i, BlockSize: %ix%i, BlocksUsed: %i/%i\n",
i + 1, i > 8 ? "" : " ",
metrics.mAtlasMetrics.mAtlasMetrics[ i ].mPixelFormat == Pixel::L8 ? "L8 " : "BGRA",
- metrics.mAtlasMetrics.mAtlasMetrics[ i ].mWidth,
- metrics.mAtlasMetrics.mAtlasMetrics[ i ].mHeight,
- metrics.mAtlasMetrics.mAtlasMetrics[ i ].mBlockWidth,
- metrics.mAtlasMetrics.mAtlasMetrics[ i ].mBlockHeight,
+ metrics.mAtlasMetrics.mAtlasMetrics[ i ].mSize.mWidth,
+ metrics.mAtlasMetrics.mAtlasMetrics[ i ].mSize.mHeight,
+ metrics.mAtlasMetrics.mAtlasMetrics[ i ].mSize.mBlockWidth,
+ metrics.mAtlasMetrics.mAtlasMetrics[ i ].mSize.mBlockHeight,
metrics.mAtlasMetrics.mAtlasMetrics[ i ].mBlocksUsed,
metrics.mAtlasMetrics.mAtlasMetrics[ i ].mTotalBlocks );
}
MaxBlockSize maxBlockSize;
for ( uint32_t i = 0; i < glyphs.Size(); ++i )
{
- // Get the fontId of this glyph and check to see if a max size exists?
FontId fontId = glyphs[ i ].fontId;
- float paddedWidth = glyphs[ i ].width + PADDING.x;
- float paddedHeight = glyphs[ i ].height + PADDING.y;
bool foundFont = false;
-
for ( uint32_t j = 0; j < mBlockSizes.size(); ++j )
{
if ( mBlockSizes[ j ].mFontId == fontId )
{
foundFont = true;
- if ( mBlockSizes[ j ].mNeededBlockSize.x < paddedWidth )
- {
- mBlockSizes[ j ].mNeededBlockSize.x = paddedWidth;
- }
- if ( mBlockSizes[ j ].mNeededBlockSize.y < paddedHeight )
- {
- mBlockSizes[ j ].mNeededBlockSize.y = paddedHeight;
- }
}
}
-
if ( !foundFont )
{
- maxBlockSize.mNeededBlockSize = Vector2( paddedWidth, paddedHeight );
+ FontMetrics fontMetrics;
+ mFontClient.GetFontMetrics( fontId, fontMetrics );
+ maxBlockSize.mNeededBlockWidth = static_cast< uint32_t >( fontMetrics.height );
+ maxBlockSize.mNeededBlockHeight = static_cast< uint32_t >( fontMetrics.height );
maxBlockSize.mFontId = fontId;
mBlockSizes.push_back( maxBlockSize );
}
}
}
- float FontMetricsRoundUp( float value )
- {
- double integral_part;
- if ( modf( value, &integral_part ) )
- {
- return ( static_cast< float >( integral_part ) + 1.0f );
- }
- else
- {
- return static_cast< float >( integral_part );
- }
- }
-
void GenerateUnderlines( std::vector< MeshRecord>& meshRecords,
Vector< Extent >& extents,
const Vector4& underlineColor,
AtlasRenderer::~AtlasRenderer()
{
delete mImpl;
-}
\ No newline at end of file
+}