compressed-texture-formats-example.cpp
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/*
* Copyright (c) 2021 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.
*
*/
// EXTERNAL INCLUDES
#include <dali-toolkit/dali-toolkit.h>
#include <dali-toolkit/devel-api/controls/table-view/table-view.h>
#include <dali/dali.h>
// INTERNAL INCLUDES
#include "generated/compressed-texture-formats-example-frag.h"
#include "generated/compressed-texture-formats-example-vert.h"
#include "shared/utility.h"
using namespace Dali;
using Dali::Toolkit::TextLabel;
namespace
{
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 Create a renderer to render an image and adds it to an actor
* @param[in] imagePath The path where the image file is located
* @param[in] actor The actor that will be used to render the image
* @param[in[ geometry The geometry to use
* @param[in] shader The shader to use
*/
void AddImage(const char* imagePath, Actor& actor, Geometry& geometry, Shader& shader)
{
//Load the texture
Texture texture = DemoHelper::LoadTexture(imagePath);
TextureSet textureSet = TextureSet::New();
textureSet.SetTexture(0u, texture);
//Create the renderer
Renderer renderer = Renderer::New(geometry, shader);
renderer.SetTextures(textureSet);
//Set actor size and add the renderer
actor.SetProperty(Actor::Property::SIZE, Vector2(texture.GetWidth(), texture.GetHeight()));
actor.AddRenderer(renderer);
}
} // namespace
/**
* @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 window
Window window = application.GetWindow();
window.SetBackgroundColor(Color::WHITE);
// Setup a TableView to hold a grid of images and labels.
Toolkit::TableView table = Toolkit::TableView::New(3u, 2u);
table.SetProperty(Actor::Property::ANCHOR_POINT, AnchorPoint::CENTER);
table.SetProperty(Actor::Property::PARENT_ORIGIN, 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.SetProperty(Actor::Property::ANCHOR_POINT, AnchorPoint::CENTER);
textLabel.SetProperty(Actor::Property::PARENT_ORIGIN, 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.SetProperty(Actor::Property::ANCHOR_POINT, AnchorPoint::CENTER);
textLabel.SetProperty(Actor::Property::PARENT_ORIGIN, 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.SetProperty(Actor::Property::ANCHOR_POINT, AnchorPoint::CENTER);
textLabel.SetProperty(Actor::Property::PARENT_ORIGIN, 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);
//Create the geometry and the shader renderers will use
Geometry geometry = DemoHelper::CreateTexturedQuad();
Shader shader = Shader::New(SHADER_COMPRESSED_TEXTURE_FORMATS_EXAMPLE_VERT, SHADER_COMPRESSED_TEXTURE_FORMATS_EXAMPLE_FRAG);
// Add images.
Actor actor = Actor::New();
actor.SetProperty(Actor::Property::ANCHOR_POINT, AnchorPoint::CENTER);
actor.SetProperty(Actor::Property::PARENT_ORIGIN, ParentOrigin::CENTER);
AddImage(IMAGE_FILENAME_ETC, actor, geometry, shader);
table.AddChild(actor, Toolkit::TableView::CellPosition(0u, 1u));
table.SetCellAlignment(Toolkit::TableView::CellPosition(0u, 1u), HorizontalAlignment::CENTER, VerticalAlignment::CENTER);
actor = Actor::New();
actor.SetProperty(Actor::Property::ANCHOR_POINT, AnchorPoint::CENTER);
actor.SetProperty(Actor::Property::PARENT_ORIGIN, ParentOrigin::CENTER);
AddImage(IMAGE_FILENAME_ASTC_LINEAR, actor, geometry, shader);
table.AddChild(actor, Toolkit::TableView::CellPosition(1u, 1u));
table.SetCellAlignment(Toolkit::TableView::CellPosition(1u, 1u), HorizontalAlignment::CENTER, VerticalAlignment::CENTER);
actor = Actor::New();
actor.SetProperty(Actor::Property::ANCHOR_POINT, AnchorPoint::CENTER);
actor.SetProperty(Actor::Property::PARENT_ORIGIN, ParentOrigin::CENTER);
AddImage(IMAGE_FILENAME_ASTC_LINEAR_NATIVE, actor, geometry, shader);
table.AddChild(actor, Toolkit::TableView::CellPosition(2u, 1u));
table.SetCellAlignment(Toolkit::TableView::CellPosition(2u, 1u), HorizontalAlignment::CENTER, VerticalAlignment::CENTER);
window.Add(table);
// Respond to touch and key signals
window.GetRootLayer().TouchedSignal().Connect(this, &CompressedTextureFormatsController::OnTouch);
window.KeyEventSignal().Connect(this, &CompressedTextureFormatsController::OnKeyEvent);
}
bool OnTouch(Actor actor, const TouchEvent& touch)
{
// quit the application
mApplication.Quit();
return true;
}
void OnKeyEvent(const KeyEvent& event)
{
if(event.GetState() == KeyEvent::DOWN)
{
if(IsKey(event, Dali::DALI_KEY_ESCAPE) || IsKey(event, Dali::DALI_KEY_BACK))
{
mApplication.Quit();
}
}
}
private:
Application& mApplication;
};
int DALI_EXPORT_API main(int argc, char** argv)
{
Application application = Application::New(&argc, &argv);
CompressedTextureFormatsController test(application);
application.MainLoop();
return 0;
}