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Vulkan-Samples/framework/platform/android/android_window.cpp
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2025-09-04 10:54:47 +08:00

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/* Copyright (c) 2018-2025, Arm Limited and Contributors
*
* SPDX-License-Identifier: Apache-2.0
*
* 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 "android_window.h"
#include "platform/android/android_platform.h"
namespace vkb
{
AndroidWindow::AndroidWindow(AndroidPlatform *platform, ANativeWindow *&window, const Window::Properties &properties) :
Window(properties),
handle{window},
platform{platform}
{
}
VkSurfaceKHR AndroidWindow::create_surface(vkb::core::InstanceC &instance)
{
return create_surface(instance.get_handle(), VK_NULL_HANDLE);
}
VkSurfaceKHR AndroidWindow::create_surface(VkInstance instance, VkPhysicalDevice)
{
if (instance == VK_NULL_HANDLE || !handle || properties.mode == Mode::Headless)
{
return VK_NULL_HANDLE;
}
VkSurfaceKHR surface{};
VkAndroidSurfaceCreateInfoKHR info{VK_STRUCTURE_TYPE_ANDROID_SURFACE_CREATE_INFO_KHR};
info.window = handle;
VK_CHECK(vkCreateAndroidSurfaceKHR(instance, &info, nullptr, &surface));
return surface;
}
void AndroidWindow::process_events()
{
process_android_events(platform->get_android_app());
}
bool AndroidWindow::should_close()
{
return finish_called ? true : handle == nullptr;
}
void AndroidWindow::close()
{
GameActivity_finish(platform->get_activity());
finish_called = true;
}
float AndroidWindow::get_dpi_factor() const
{
return AConfiguration_getDensity(platform->get_android_app()->config) / static_cast<float>(ACONFIGURATION_DENSITY_MEDIUM);
}
std::vector<const char *> AndroidWindow::get_required_surface_extensions() const
{
return {VK_KHR_ANDROID_SURFACE_EXTENSION_NAME};
}
} // namespace vkb