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