shared/utility.h

   1 #ifndef DALI_DEMO_UTILITY_H
   2 #define DALI_DEMO_UTILITY_H
   3
   4 /*
   5  * Copyright (c) 2016 Samsung Electronics Co., Ltd.
   6  *
   7  * Licensed under the Apache License, Version 2.0 (the "License");
   8  * you may not use this file except in compliance with the License.
   9  * You may obtain a copy of the License at
  10  *
  11  * http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  *
  19  */
  20
  21 #include <dali/dali.h>
  22 #include <dali/devel-api/adaptor-framework/bitmap-loader.h>
  23 #include <dali/public-api/rendering/geometry.h>
  24 #include <dali/public-api/rendering/texture.h>
  25
  26 namespace DemoHelper
  27 {
  28
  29 Dali::PixelData LoadPixelData( const char* imagePath,
  30                                Dali::ImageDimensions size,
  31                                Dali::FittingMode::Type fittingMode,
  32                                Dali::SamplingMode::Type samplingMode )
  33 {
  34   Dali::BitmapLoader loader = Dali::BitmapLoader::New( imagePath, size, fittingMode, samplingMode );
  35   loader.Load();
  36   return loader.GetPixelData();
  37 }
  38
  39 Dali::Texture LoadTexture( const char* imagePath,
  40                            Dali::ImageDimensions size = Dali::ImageDimensions(),
  41                            Dali::FittingMode::Type fittingMode = Dali::FittingMode::DEFAULT,
  42                            Dali::SamplingMode::Type samplingMode = Dali::SamplingMode::DEFAULT )
  43 {
  44   Dali::PixelData pixelData = LoadPixelData(imagePath, size, fittingMode, samplingMode);
  45   Dali::Texture texture  = Dali::Texture::New( Dali::TextureType::TEXTURE_2D,
  46                                                pixelData.GetPixelFormat(),
  47                                                pixelData.GetWidth(),
  48                                                pixelData.GetHeight() );
  49   texture.Upload( pixelData );
  50
  51   return texture;
  52 }
  53
  54 Dali::Texture LoadStageFillingTexture( const char* imagePath )
  55 {
  56   Dali::Vector2 stageSize = Dali::Stage::GetCurrent().GetSize();
  57   return LoadTexture( imagePath, Dali::ImageDimensions( stageSize.x, stageSize.y ), Dali::FittingMode::SCALE_TO_FILL, Dali::SamplingMode::BOX_THEN_LINEAR );
  58 }
  59
  60 Dali::Geometry CreateTexturedQuad()
  61 {
  62   struct Vertex
  63   {
  64     Dali::Vector2 position;
  65     Dali::Vector2 texCoord;
  66   };
  67
  68   static const Vertex data[] = {{ Dali::Vector2( -0.5f, -0.5f ), Dali::Vector2( 0.0f, 0.0f ) },
  69                                 { Dali::Vector2(  0.5f, -0.5f ), Dali::Vector2( 1.0f, 0.0f ) },
  70                                 { Dali::Vector2( -0.5f,  0.5f ), Dali::Vector2( 0.0f, 1.0f ) },
  71                                 { Dali::Vector2(  0.5f,  0.5f ), Dali::Vector2( 1.0f, 1.0f ) }};
  72
  73   Dali::PropertyBuffer vertexBuffer;
  74   Dali::Property::Map vertexFormat;
  75   vertexFormat["aPosition"] = Dali::Property::VECTOR2;
  76   vertexFormat["aTexCoord"] = Dali::Property::VECTOR2;
  77
  78   //Create a vertex buffer for vertex positions and texture coordinates
  79   vertexBuffer = Dali::PropertyBuffer::New( vertexFormat );
  80   vertexBuffer.SetData( data, 4u );
  81
  82   //Create the geometry
  83   Dali::Geometry geometry = Dali::Geometry::New();
  84   geometry.AddVertexBuffer( vertexBuffer );
  85   geometry.SetType(Dali::Geometry::TRIANGLE_STRIP );
  86
  87   return geometry;
  88 }
  89 } // DemoHelper
  90
  91 #endif // DALI_DEMO_UTILITY_H