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