2 * Copyright (c) 2015 Samsung Electronics Co., Ltd.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
18 #include <dali-toolkit/internal/text/rendering/atlas/atlas-glyph-manager-impl.h>
21 #include <dali/public-api/actors/image-actor.h>
22 #include <dali/public-api/common/stage.h>
24 #define MAKE_SHADER(A)#A
28 const char* VERTEX_SHADER = MAKE_SHADER(
29 attribute mediump vec2 aPosition;
30 attribute mediump vec2 aTexCoord;
31 uniform mediump mat4 uMvpMatrix;
32 uniform mediump vec3 uSize;
33 varying mediump vec2 vTexCoord;
37 mediump vec4 position = vec4( aPosition, 0.0, 1.0 );
38 position.xyz *= uSize;
39 gl_Position = uMvpMatrix * position;
40 vTexCoord = aTexCoord;
44 const char* FRAGMENT_SHADER = MAKE_SHADER(
45 uniform sampler2D sTexture;
46 varying mediump vec2 vTexCoord;
50 gl_FragColor = texture2D( sTexture, vTexCoord );
54 const char* VERTEX_SHADER_SHADOW = MAKE_SHADER(
55 attribute mediump vec2 aPosition;
56 attribute mediump vec2 aTexCoord;
57 uniform mediump vec3 uSize;
58 varying mediump vec2 vTexCoord;
62 mediump vec4 position = vec4( aPosition, 0.0, 1.0 );
63 position.xyz *= uSize;
64 gl_Position = position;
65 vTexCoord = aTexCoord;
69 const char* FRAGMENT_SHADER_SHADOW = MAKE_SHADER(
70 uniform sampler2D sTexture;
71 uniform lowp vec4 uColor;
72 varying mediump vec2 vTexCoord;
76 mediump vec4 color = texture2D( sTexture, vTexCoord );
77 gl_FragColor = vec4(uColor.rgb, uColor.a*color.r);
91 AtlasGlyphManager::AtlasGlyphManager()
93 mAtlasManager = Dali::Toolkit::AtlasManager::New();
94 mEffectBufferShader = Shader::New( VERTEX_SHADER, FRAGMENT_SHADER );
95 mShadowShader = Shader::New( VERTEX_SHADER_SHADOW, FRAGMENT_SHADER_SHADOW, Dali::Shader::HINT_MODIFIES_GEOMETRY );
98 AtlasGlyphManager::~AtlasGlyphManager()
102 AtlasGlyphManagerPtr AtlasGlyphManager::New()
104 AtlasGlyphManagerPtr internal = new AtlasGlyphManager();
108 void AtlasGlyphManager::Add( const Text::GlyphInfo& glyph,
109 const BufferImage& bitmap,
110 Dali::Toolkit::AtlasManager::AtlasSlot& slot )
113 record.mFontId = glyph.fontId;
114 record.mIndex = glyph.index;
116 mAtlasManager.Add( bitmap, slot );
117 record.mImageId = slot.mImageId;
118 mGlyphRecords.PushBack( record );
121 void AtlasGlyphManager::GenerateMeshData( uint32_t imageId,
122 const Vector2& position,
123 Toolkit::AtlasManager::Mesh2D& mesh )
125 mAtlasManager.GenerateMeshData( imageId, position, mesh );
128 void AtlasGlyphManager::StitchMesh( Toolkit::AtlasManager::Mesh2D& first,
129 const Toolkit::AtlasManager::Mesh2D& second )
131 mAtlasManager.StitchMesh( first, second );
134 void AtlasGlyphManager::Cached( Text::FontId fontId,
136 Dali::Toolkit::AtlasManager::AtlasSlot& slot )
138 for ( uint32_t i = 0; i < mGlyphRecords.Size(); ++i )
140 if ( fontId == mGlyphRecords[ i ].mFontId && index == mGlyphRecords[ i ].mIndex )
142 slot.mImageId = mGlyphRecords[ i ].mImageId;
143 slot.mAtlasId = mAtlasManager.GetAtlas( slot.mImageId );
150 Vector2 AtlasGlyphManager::GetAtlasSize( uint32_t atlasId )
152 Toolkit::AtlasManager::AtlasSize size = mAtlasManager.GetAtlasSize( atlasId );
153 return Vector2( static_cast< float >( size.mWidth ), static_cast< float >( size.mHeight ) );
156 void AtlasGlyphManager::SetNewAtlasSize( uint32_t width, uint32_t height, uint32_t blockWidth, uint32_t blockHeight )
158 Toolkit::AtlasManager::AtlasSize size;
160 size.mHeight = height;
161 size.mBlockWidth = blockWidth;
162 size.mBlockHeight = blockHeight;
163 mAtlasManager.SetNewAtlasSize( size );
166 void AtlasGlyphManager::Remove( uint32_t imageId )
168 if ( mAtlasManager.Remove( imageId ) )
170 for ( uint32_t i = 0; i < mGlyphRecords.Size(); ++i )
172 if ( mGlyphRecords[ i ].mImageId == imageId )
174 mGlyphRecords.Remove( mGlyphRecords.Begin() + i );
181 Pixel::Format AtlasGlyphManager::GetPixelFormat( uint32_t atlasId )
183 return mAtlasManager.GetPixelFormat( atlasId );
186 Material AtlasGlyphManager::GetMaterial( uint32_t atlasId ) const
188 return mAtlasManager.GetMaterial( atlasId );
191 Sampler AtlasGlyphManager::GetSampler( uint32_t atlasId ) const
193 return mAtlasManager.GetSampler( atlasId );
196 const Toolkit::AtlasGlyphManager::Metrics& AtlasGlyphManager::GetMetrics()
198 mMetrics.mGlyphCount = mGlyphRecords.Size();
199 mAtlasManager.GetMetrics( mMetrics.mAtlasMetrics );
203 } // namespace Internal
205 } // namespace Toolkit