utility.h
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#ifndef DALI_DEMO_UTILITY_H
#define DALI_DEMO_UTILITY_H
/*
* Copyright (c) 2020 Samsung Electronics Co., Ltd.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
#include <dali/dali.h>
#include <dali/devel-api/adaptor-framework/image-loading.h>
#include <dali/public-api/math/uint-16-pair.h>
#include <dali/public-api/rendering/geometry.h>
#include <dali/public-api/rendering/texture.h>
namespace DemoHelper
{
Dali::Texture LoadTexture(const char* imagePath,
Dali::ImageDimensions size = Dali::ImageDimensions(),
Dali::FittingMode::Type fittingMode = Dali::FittingMode::DEFAULT,
Dali::SamplingMode::Type samplingMode = Dali::SamplingMode::DEFAULT,
bool orientationCorrection = true)
{
Dali::Devel::PixelBuffer pixelBuffer = LoadImageFromFile(imagePath, size, fittingMode, samplingMode, orientationCorrection);
Dali::Texture texture = Dali::Texture::New(Dali::TextureType::TEXTURE_2D,
pixelBuffer.GetPixelFormat(),
pixelBuffer.GetWidth(),
pixelBuffer.GetHeight());
Dali::PixelData pixelData = Dali::Devel::PixelBuffer::Convert(pixelBuffer);
texture.Upload(pixelData);
return texture;
}
Dali::Texture LoadWindowFillingTexture(Dali::Uint16Pair size, const char* imagePath)
{
return LoadTexture(imagePath, size, Dali::FittingMode::SCALE_TO_FILL, Dali::SamplingMode::BOX_THEN_LINEAR);
}
Dali::Geometry CreateTexturedQuad()
{
struct Vertex
{
Dali::Vector2 position;
Dali::Vector2 texCoord;
};
static const Vertex data[] = {{Dali::Vector2(-0.5f, -0.5f), Dali::Vector2(0.0f, 0.0f)},
{Dali::Vector2(0.5f, -0.5f), Dali::Vector2(1.0f, 0.0f)},
{Dali::Vector2(-0.5f, 0.5f), Dali::Vector2(0.0f, 1.0f)},
{Dali::Vector2(0.5f, 0.5f), Dali::Vector2(1.0f, 1.0f)}};
Dali::VertexBuffer vertexBuffer;
Dali::Property::Map vertexFormat;
vertexFormat["aPosition"] = Dali::Property::VECTOR2;
vertexFormat["aTexCoord"] = Dali::Property::VECTOR2;
//Create a vertex buffer for vertex positions and texture coordinates
vertexBuffer = Dali::VertexBuffer::New(vertexFormat);
vertexBuffer.SetData(data, 4u);
//Create the geometry
Dali::Geometry geometry = Dali::Geometry::New();
geometry.AddVertexBuffer(vertexBuffer);
geometry.SetType(Dali::Geometry::TRIANGLE_STRIP);
return geometry;
}
} // namespace DemoHelper
#endif // DALI_DEMO_UTILITY_H