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/images/atlas.h>
  23 #include <dali/devel-api/adaptor-framework/bitmap-loader.h>
  24 #include <dali/public-api/rendering/geometry.h>
  25 #include <dali/public-api/rendering/texture.h>
  26
  27 namespace DemoHelper
  28 {
  29
  30 Dali::PixelData LoadPixelData( const char* imagePath,
  31                                Dali::ImageDimensions size,
  32                                Dali::FittingMode::Type fittingMode,
  33                                Dali::SamplingMode::Type samplingMode )
  34 {
  35   Dali::BitmapLoader loader = Dali::BitmapLoader::New( imagePath, size, fittingMode, samplingMode );
  36   loader.Load();
  37   return loader.GetPixelData();
  38 }
  39
  40 /**
  41  * @deprecated, dont use this anymore
  42  */
  43 Dali::Image LoadImage( const char* imagePath,
  44                        Dali::ImageDimensions size = Dali::ImageDimensions(),
  45                        Dali::FittingMode::Type fittingMode = Dali::FittingMode::DEFAULT,
  46                        Dali::SamplingMode::Type samplingMode = Dali::SamplingMode::DEFAULT )
  47 {
  48   return Dali::ResourceImage::New( imagePath, size, fittingMode, samplingMode );
  49 }
  50
  51 Dali::Texture LoadTexture( const char* imagePath,
  52                            Dali::ImageDimensions size = Dali::ImageDimensions(),
  53                            Dali::FittingMode::Type fittingMode = Dali::FittingMode::DEFAULT,
  54                            Dali::SamplingMode::Type samplingMode = Dali::SamplingMode::DEFAULT )
  55 {
  56   Dali::PixelData pixelData = LoadPixelData(imagePath, size, fittingMode, samplingMode);
  57   Dali::Texture texture  = Dali::Texture::New( Dali::TextureType::TEXTURE_2D,
  58                                                pixelData.GetPixelFormat(),
  59                                                pixelData.GetWidth(),
  60                                                pixelData.GetHeight() );
  61   texture.Upload( pixelData );
  62
  63   return texture;
  64 }
  65
  66 /**
  67  * @brief Load an bitmap resource.
  68  * @deprecated, dont use this anymore
  69  *
  70  * If it is required to scaled-down to no more than the stage dimensions,
  71  * uses image scaling mode FittingMode::SCALE_TO_FILL to resize the image at
  72  * load time to cover the entire stage with pixels with no borders,
  73  * and filter mode BOX_THEN_LINEAR to sample the image with
  74  * maximum quality.
  75  */
  76
  77 Dali::Image LoadStageFillingImage( const char* imagePath )
  78 {
  79   Dali::Vector2 stageSize = Dali::Stage::GetCurrent().GetSize();
  80   return LoadImage( imagePath, Dali::ImageDimensions( stageSize.x, stageSize.y ), Dali::FittingMode::SCALE_TO_FILL, Dali::SamplingMode::BOX_THEN_LINEAR );
  81 }
  82
  83 Dali::Texture LoadStageFillingTexture( const char* imagePath )
  84 {
  85   Dali::Vector2 stageSize = Dali::Stage::GetCurrent().GetSize();
  86   return LoadTexture( imagePath, Dali::ImageDimensions( stageSize.x, stageSize.y ), Dali::FittingMode::SCALE_TO_FILL, Dali::SamplingMode::BOX_THEN_LINEAR );
  87 }
  88
  89 Dali::Geometry CreateTexturedQuad()
  90 {
  91   struct Vertex
  92   {
  93     Dali::Vector2 position;
  94     Dali::Vector2 texCoord;
  95   };
  96
  97   static const Vertex data[] = {{ Dali::Vector2( -0.5f, -0.5f ), Dali::Vector2( 0.0f, 0.0f ) },
  98                                 { Dali::Vector2(  0.5f, -0.5f ), Dali::Vector2( 1.0f, 0.0f ) },
  99                                 { Dali::Vector2( -0.5f,  0.5f ), Dali::Vector2( 0.0f, 1.0f ) },
 100                                 { Dali::Vector2(  0.5f,  0.5f ), Dali::Vector2( 1.0f, 1.0f ) }};
 101
 102   Dali::PropertyBuffer vertexBuffer;
 103   Dali::Property::Map vertexFormat;
 104   vertexFormat["aPosition"] = Dali::Property::VECTOR2;
 105   vertexFormat["aTexCoord"] = Dali::Property::VECTOR2;
 106
 107   //Create a vertex buffer for vertex positions and texture coordinates
 108   vertexBuffer = Dali::PropertyBuffer::New( vertexFormat );
 109   vertexBuffer.SetData( data, 4u );
 110
 111   //Create the geometry
 112   Dali::Geometry geometry = Dali::Geometry::New();
 113   geometry.AddVertexBuffer( vertexBuffer );
 114   geometry.SetType(Dali::Geometry::TRIANGLE_STRIP );
 115
 116   return geometry;
 117 }
 118 } // DemoHelper
 119
 120 #endif // DALI_DEMO_UTILITY_H