#include <dali-toolkit/internal/text/rendering/atlas/atlas-glyph-manager.h>
#include <dali-toolkit/internal/text/rendering/shaders/text-basic-shader.h>
#include <dali-toolkit/internal/text/rendering/shaders/text-bgra-shader.h>
-
+#include <dali-toolkit/internal/text/rendering/shaders/text-basic-shadow-shader.h>
#if defined(DEBUG_ENABLED)
Debug::Filter* gLogFilter = Debug::Filter::New(Debug::Concise, true, "LOG_TEXT_ATLAS_RENDERER");
#endif
const Vector2 PADDING( 4.0f, 4.0f ); // Allow for variation in font glyphs
}
-struct AtlasRenderer::Impl
+struct AtlasRenderer::Impl : public ConnectionTracker
{
+ enum Style
+ {
+ STYLE_NORMAL,
+ STYLE_DROP_SHADOW
+ };
+
struct MeshRecord
{
uint32_t mAtlasId;
MeshData mMeshData;
+ FrameBufferImage mBuffer;
};
struct AtlasRecord
};
Impl()
- : mSlotDelegate( this )
{
mGlyphManager = AtlasGlyphManager::Get();
mFontClient = TextAbstraction::FontClient::Get();
mGlyphManager.SetNewAtlasSize( DEFAULT_ATLAS_SIZE, DEFAULT_BLOCK_SIZE );
mBasicShader = BasicShader::New();
- mBGRAShader = BgraShader::New();
+ mBgraShader = BgraShader::New();
+ mBasicShadowShader = BasicShadowShader::New();
}
- void AddGlyphs( const std::vector<Vector2>& positions, const Vector<GlyphInfo>& glyphs )
+ void AddGlyphs( const std::vector<Vector2>& positions,
+ const Vector<GlyphInfo>& glyphs,
+ const Vector2& shadowOffset,
+ const Vector4& shadowColor )
{
AtlasManager::AtlasSlot slot;
std::vector< MeshRecord > meshContainer;
FontId lastFontId = 0;
+ Style style = STYLE_NORMAL;
- if (mImageIds.Size() )
+ if ( shadowOffset.x > 0.0f || shadowOffset.y > 0.0f )
+ {
+ style = STYLE_DROP_SHADOW;
+ }
+
+ if ( mImageIds.Size() )
{
// Unreference any currently used glyphs
RemoveText();
{
for ( uint32_t i = 0; i < meshContainer.size(); ++i )
{
- Mesh mesh = Mesh::New( meshContainer[ i ].mMeshData );
- MeshActor actor = MeshActor::New( mesh );
+ MeshActor actor = MeshActor::New( Mesh::New( meshContainer[ i ].mMeshData ) );
actor.SetParentOrigin( ParentOrigin::TOP_LEFT );
- actor.SetColorMode( USE_OWN_MULTIPLY_PARENT_COLOR );;
+ actor.SetColorMode( USE_OWN_MULTIPLY_PARENT_COLOR );
// Check to see what pixel format the shader should be
if ( mGlyphManager.GetPixelFormat( meshContainer[ i ].mAtlasId ) == Pixel::L8 )
{
+ // Create an effect if necessary
+ if ( style == STYLE_DROP_SHADOW )
+ {
+ actor.Add( GenerateEffect( meshContainer[ i ], shadowOffset, shadowColor ) );
+ }
actor.SetShaderEffect( mBasicShader );
}
else
{
- actor.SetShaderEffect( mBGRAShader );
+ actor.SetShaderEffect( mBgraShader );
}
if ( i )
mActor = actor;
}
}
- mActor.OffStageSignal().Connect( mSlotDelegate, &AtlasRenderer::Impl::OffStageDisconnect );
+ mActor.OffStageSignal().Connect( this, &AtlasRenderer::Impl::OffStageDisconnect );
}
#if defined(DEBUG_ENABLED)
Toolkit::AtlasGlyphManager::Metrics metrics = mGlyphManager.GetMetrics();
}
}
+ MeshActor GenerateEffect( MeshRecord& meshRecord,
+ const Vector2& shadowOffset,
+ const Vector4& shadowColor )
+ {
+ // Scan vertex buffer to determine width and height of effect buffer needed
+ MeshData::VertexContainer verts = meshRecord.mMeshData.GetVertices();
+ const float zero = 0.0f;
+ const float one = 1.0f;
+ float tlx = verts[ 0 ].x;
+ float tly = verts[ 0 ].y;
+ float brx = zero;
+ float bry = zero;
+
+ for ( uint32_t i = 0; i < verts.size(); ++i )
+ {
+ if ( verts[ i ].x < tlx )
+ {
+ tlx = verts[ i ].x;
+ }
+ if ( verts[ i ].y < tly )
+ {
+ tly = verts[ i ].y;
+ }
+ if ( verts[ i ].x > brx )
+ {
+ brx = verts[ i ].x;
+ }
+ if ( verts[ i ].y > bry )
+ {
+ bry = verts[ i ].y;
+ }
+ }
+
+ float width = brx - tlx;
+ float height = bry - tly;
+ float divWidth = 2.0f / width;
+ float divHeight = 2.0f / height;
+
+ // Create a buffer to render to
+ // TODO bloom style filter from this buffer
+ meshRecord.mBuffer = FrameBufferImage::New( width, height );
+
+ // Create a mesh actor to contain the post-effect render
+ MeshData::VertexContainer vertices;
+ MeshData::FaceIndices face;
+
+ vertices.push_back( MeshData::Vertex( Vector3( tlx + shadowOffset.x, tly + shadowOffset.y, zero ),
+ Vector2( zero, zero ),
+ Vector3( zero, zero, zero ) ) );
+
+ vertices.push_back( MeshData::Vertex( Vector3( brx + shadowOffset.x, tly + shadowOffset.y, zero ),
+ Vector2( one, zero ),
+ Vector3( zero, zero, zero ) ) );
+
+ vertices.push_back( MeshData::Vertex( Vector3( tlx + shadowOffset.x, bry + shadowOffset.y, zero ),
+ Vector2( zero, one ),
+ Vector3( zero, zero, zero ) ) );
+
+ vertices.push_back( MeshData::Vertex( Vector3( brx + shadowOffset.x, bry + shadowOffset.y, zero ),
+ Vector2( one, one ),
+ Vector3( zero, zero, zero ) ) );
+
+ face.push_back( 0 ); face.push_back( 2u ); face.push_back( 1u );
+ face.push_back( 1u ); face.push_back( 2u ); face.push_back( 3u );
+
+ MeshData meshData;
+ Material newMaterial = Material::New("effect buffer");
+ newMaterial.SetDiffuseTexture( meshRecord.mBuffer );
+ meshData.SetMaterial( newMaterial );
+ meshData.SetVertices( vertices );
+ meshData.SetFaceIndices( face );
+ meshData.SetHasNormals( true );
+ meshData.SetHasColor( false );
+ meshData.SetHasTextureCoords( true );
+ MeshActor actor = MeshActor::New( Mesh::New( meshData ) );
+ actor.SetParentOrigin( ParentOrigin::TOP_LEFT );
+ actor.SetColorMode( USE_OWN_MULTIPLY_PARENT_COLOR );
+ actor.SetShaderEffect( mBgraShader );
+ actor.SetFilterMode( FilterMode::LINEAR, FilterMode::LINEAR );
+ actor.SetSortModifier( one ); // force behind main text
+
+ // Create a sub actor to render once with normalized vertex positions
+ MeshData newMeshData;
+ MeshData::VertexContainer newVerts;
+ MeshData::FaceIndices newFaces;
+ MeshData::FaceIndices faces = meshRecord.mMeshData.GetFaces();
+ for ( uint32_t i = 0; i < verts.size(); ++i )
+ {
+ MeshData::Vertex vertex = verts[ i ];
+ vertex.x = ( ( vertex.x - tlx ) * divWidth ) - one;
+ vertex.y = ( ( vertex.y - tly ) * divHeight ) - one;
+ newVerts.push_back( vertex );
+ }
+
+ // Reverse triangle winding order
+ uint32_t faceCount = faces.size() / 3;
+ for ( uint32_t i = 0; i < faceCount; ++i )
+ {
+ uint32_t index = i * 3;
+ newFaces.push_back( faces[ index + 2 ] );
+ newFaces.push_back( faces[ index + 1 ] );
+ newFaces.push_back( faces[ index ] );
+ }
+
+ newMeshData.SetMaterial( meshRecord.mMeshData.GetMaterial() );
+ newMeshData.SetVertices( newVerts );
+ newMeshData.SetFaceIndices( newFaces );
+ newMeshData.SetHasNormals( true );
+ newMeshData.SetHasColor( false );
+ newMeshData.SetHasTextureCoords( true );
+
+ MeshActor subActor = MeshActor::New( Mesh::New( newMeshData ) );
+ subActor.SetParentOrigin( ParentOrigin::TOP_LEFT );
+ subActor.SetColorMode( USE_OWN_MULTIPLY_PARENT_COLOR );
+ subActor.SetColor( shadowColor );
+ subActor.SetShaderEffect( mBasicShadowShader );
+ subActor.SetFilterMode( FilterMode::NEAREST, FilterMode::NEAREST );
+
+ // Create a render task to render the effect
+ RenderTask task = Stage::GetCurrent().GetRenderTaskList().CreateTask();
+ task.SetTargetFrameBuffer( meshRecord.mBuffer );
+ task.SetSourceActor( subActor );
+ task.SetClearEnabled( true );
+ task.SetClearColor( Vector4::ZERO );
+ task.SetExclusive( true );
+ task.SetRefreshRate( RenderTask::REFRESH_ONCE );
+ task.FinishedSignal().Connect( this, &AtlasRenderer::Impl::RenderComplete );
+ actor.Add( subActor );
+ return actor;
+ }
+
+ void RenderComplete( RenderTask& renderTask )
+ {
+ // Get the actor used for render to buffer and remove it from the parent
+ Actor renderActor = renderTask.GetSourceActor();
+ if ( renderActor )
+ {
+ Actor parent = renderActor.GetParent();
+ if ( parent )
+ {
+ parent.Remove( renderActor );
+ }
+ }
+ }
+
RenderableActor mActor; ///< The actor parent which renders the text
AtlasGlyphManager mGlyphManager; ///< Glyph Manager to handle upload and caching
Vector< uint32_t > mImageIds; ///< A list of imageIDs used by the renderer
TextAbstraction::FontClient mFontClient; ///> The font client used to supply glyph information
- SlotDelegate< AtlasRenderer::Impl > mSlotDelegate; ///> Signal generated to unreference glyphs when renderable actor is removed
- ShaderEffect mBasicShader; ///> Shader to render L8 glyphs
- ShaderEffect mBGRAShader; ///> Shader to render BGRA glyphs
+ ShaderEffect mBasicShader; ///> Shader used to render L8 glyphs
+ ShaderEffect mBgraShader; ///> Shader used to render BGRA glyphs
+ ShaderEffect mBasicShadowShader; ///> Shader used to render drop shadow into buffer
std::vector< MaxBlockSize > mBlockSizes; ///> Maximum size needed to contain a glyph in a block within a new atlas
};
std::vector<Vector2> positions;
positions.resize( numberOfGlyphs );
view.GetGlyphPositions( &positions[0], 0, numberOfGlyphs );
- mImpl->AddGlyphs( positions, glyphs );
+ mImpl->AddGlyphs( positions,
+ glyphs,
+ view.GetShadowOffset(),
+ view.GetShadowColor() );
}
return mImpl->mActor;
}
projects / platform / core / uifw / dali-toolkit.git / blobdiff