compressed-texture-formats-example.cpp
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/*
* Copyright (c) 2016 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-toolkit/dali-toolkit.h>
using namespace Dali;
using Dali::Toolkit::TextLabel;
const char* IMAGE_FILENAME_ETC = DEMO_IMAGE_DIR "tx-etc1.ktx";
const char* IMAGE_FILENAME_ASTC_LINEAR = DEMO_IMAGE_DIR "tx-astc-4x4-linear.ktx";
const char* IMAGE_FILENAME_ASTC_LINEAR_NATIVE = DEMO_IMAGE_DIR "tx-astc-4x4-linear-native.astc";
/**
* @brief This example shows 3 images, each of a different compressed texture type.
* If built and run on a OpenGL ES 3.1 compatable target, then all 3 images will display.
* Otherwise, the top image will display and the other 2 will appear as black squares.
*/
class CompressedTextureFormatsController : public ConnectionTracker
{
public:
CompressedTextureFormatsController( Application& application )
: mApplication( application )
{
// Connect to the Application's Init signal
mApplication.InitSignal().Connect( this, &CompressedTextureFormatsController::Create );
}
~CompressedTextureFormatsController()
{
// Nothing to do here;
}
// The Init signal is received once (only) during the Application lifetime
void Create( Application& application )
{
// Get a handle to the stage
Stage stage = Stage::GetCurrent();
stage.SetBackgroundColor( Color::WHITE );
// Setup a TableView to hold a grid of images and labels.
Toolkit::TableView table = Toolkit::TableView::New( 3u, 2u );
table.SetAnchorPoint( AnchorPoint::CENTER );
table.SetParentOrigin( ParentOrigin::CENTER );
table.SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::ALL_DIMENSIONS );
table.SetRelativeWidth( 0u, 0.5f );
table.SetRelativeWidth( 1u, 0.5f );
table.SetRelativeHeight( 0u, 1.0f / 3.0f );
table.SetRelativeHeight( 1u, 1.0f / 3.0f );
table.SetRelativeHeight( 2u, 1.0f / 3.0f );
// Add text labels.
TextLabel textLabel = TextLabel::New( "ETC1 (KTX):" );
textLabel.SetAnchorPoint( AnchorPoint::CENTER );
textLabel.SetParentOrigin( ParentOrigin::CENTER );
textLabel.SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::ALL_DIMENSIONS );
textLabel.SetProperty( Toolkit::TextLabel::Property::MULTI_LINE, true );
table.AddChild( textLabel, Toolkit::TableView::CellPosition( 0u, 0u ) );
table.SetCellAlignment( Toolkit::TableView::CellPosition( 0u, 0u ), HorizontalAlignment::LEFT, VerticalAlignment::CENTER );
textLabel = TextLabel::New( "ASTC (KTX) 4x4 linear:" );
textLabel.SetAnchorPoint( AnchorPoint::CENTER );
textLabel.SetParentOrigin( ParentOrigin::CENTER );
textLabel.SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::ALL_DIMENSIONS );
textLabel.SetProperty( Toolkit::TextLabel::Property::MULTI_LINE, true );
table.AddChild( textLabel, Toolkit::TableView::CellPosition( 1u, 0u ) );
table.SetCellAlignment( Toolkit::TableView::CellPosition( 1u, 0u ), HorizontalAlignment::LEFT, VerticalAlignment::CENTER );
textLabel = TextLabel::New( "ASTC (Native) 4x4 linear:" );
textLabel.SetAnchorPoint( AnchorPoint::CENTER );
textLabel.SetParentOrigin( ParentOrigin::CENTER );
textLabel.SetResizePolicy( ResizePolicy::FILL_TO_PARENT, Dimension::ALL_DIMENSIONS );
textLabel.SetProperty( Toolkit::TextLabel::Property::MULTI_LINE, true );
table.AddChild( textLabel, Toolkit::TableView::CellPosition( 2u, 0u ) );
table.SetCellAlignment( Toolkit::TableView::CellPosition( 2u, 0u ), HorizontalAlignment::LEFT, VerticalAlignment::CENTER );
// Add images.
Toolkit::ImageView imageView = Toolkit::ImageView::New( ResourceImage::New( IMAGE_FILENAME_ETC ) );
imageView.SetAnchorPoint( AnchorPoint::CENTER );
imageView.SetParentOrigin( ParentOrigin::CENTER );
table.AddChild( imageView, Toolkit::TableView::CellPosition( 0u, 1u ) );
imageView = Toolkit::ImageView::New( ResourceImage::New( IMAGE_FILENAME_ASTC_LINEAR ) );
imageView.SetAnchorPoint( AnchorPoint::CENTER );
imageView.SetParentOrigin( ParentOrigin::CENTER );
table.AddChild( imageView, Toolkit::TableView::CellPosition( 1u, 1u ) );
imageView = Toolkit::ImageView::New( ResourceImage::New( IMAGE_FILENAME_ASTC_LINEAR_NATIVE ) );
imageView.SetAnchorPoint( AnchorPoint::CENTER );
imageView.SetParentOrigin( ParentOrigin::CENTER );
table.AddChild( imageView, Toolkit::TableView::CellPosition( 2u, 1u ) );
stage.Add( table );
// Respond to a click anywhere on the stage
stage.GetRootLayer().TouchedSignal().Connect( this, &CompressedTextureFormatsController::OnTouch );
}
bool OnTouch( Actor actor, const TouchEvent& touch )
{
// quit the application
mApplication.Quit();
return true;
}
private:
Application& mApplication;
};
void RunTest( Application& application )
{
CompressedTextureFormatsController test( application );
application.MainLoop();
}
// Entry point for Linux & Tizen applications
//
int DALI_EXPORT_API main( int argc, char **argv )
{
Application application = Application::New( &argc, &argv );
RunTest( application );
return 0;
}