shared/utility.h

   1 #ifndef DALI_DEMO_UTILITY_H
   2 #define DALI_DEMO_UTILITY_H
   3
   4 /*
   5  * Copyright (c) 2020 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/public-api/rendering/geometry.h>
  23 #include <dali/public-api/rendering/texture.h>
  24 #include <dali/public-api/math/uint-16-pair.h>
  25 #include <dali/devel-api/adaptor-framework/image-loading.h>
  26
  27 namespace DemoHelper
  28 {
  29
  30 Dali::Texture LoadTexture( const char* imagePath,
  31                            Dali::ImageDimensions size = Dali::ImageDimensions(),
  32                            Dali::FittingMode::Type fittingMode = Dali::FittingMode::DEFAULT,
  33                            Dali::SamplingMode::Type samplingMode = Dali::SamplingMode::DEFAULT,
  34                            bool orientationCorrection = true )
  35 {
  36   Dali::Devel::PixelBuffer pixelBuffer = LoadImageFromFile(imagePath, size, fittingMode, samplingMode, orientationCorrection );
  37   Dali::Texture texture  = Dali::Texture::New( Dali::TextureType::TEXTURE_2D,
  38                                                pixelBuffer.GetPixelFormat(),
  39                                                pixelBuffer.GetWidth(),
  40                                                pixelBuffer.GetHeight() );
  41
  42   Dali::PixelData pixelData = Dali::Devel::PixelBuffer::Convert(pixelBuffer);
  43   texture.Upload( pixelData );
  44
  45   return texture;
  46 }
  47
  48 Dali::Texture LoadWindowFillingTexture( Dali::Uint16Pair size, const char* imagePath )
  49 {
  50   return LoadTexture( imagePath, size, Dali::FittingMode::SCALE_TO_FILL, Dali::SamplingMode::BOX_THEN_LINEAR );
  51 }
  52
  53 Dali::Geometry CreateTexturedQuad()
  54 {
  55   struct Vertex
  56   {
  57     Dali::Vector2 position;
  58     Dali::Vector2 texCoord;
  59   };
  60
  61   static const Vertex data[] = {{ Dali::Vector2( -0.5f, -0.5f ), Dali::Vector2( 0.0f, 0.0f ) },
  62                                 { Dali::Vector2(  0.5f, -0.5f ), Dali::Vector2( 1.0f, 0.0f ) },
  63                                 { Dali::Vector2( -0.5f,  0.5f ), Dali::Vector2( 0.0f, 1.0f ) },
  64                                 { Dali::Vector2(  0.5f,  0.5f ), Dali::Vector2( 1.0f, 1.0f ) }};
  65
  66   Dali::PropertyBuffer vertexBuffer;
  67   Dali::Property::Map vertexFormat;
  68   vertexFormat["aPosition"] = Dali::Property::VECTOR2;
  69   vertexFormat["aTexCoord"] = Dali::Property::VECTOR2;
  70
  71   //Create a vertex buffer for vertex positions and texture coordinates
  72   vertexBuffer = Dali::PropertyBuffer::New( vertexFormat );
  73   vertexBuffer.SetData( data, 4u );
  74
  75   //Create the geometry
  76   Dali::Geometry geometry = Dali::Geometry::New();
  77   geometry.AddVertexBuffer( vertexBuffer );
  78   geometry.SetType(Dali::Geometry::TRIANGLE_STRIP );
  79
  80   return geometry;
  81 }
  82 } // DemoHelper
  83
  84 #endif // DALI_DEMO_UTILITY_H