mirror of
https://github.com/opus-tango/IntroductionToVulkan.git
synced 2026-03-20 12:05:20 +00:00
386 lines
12 KiB
C++
386 lines
12 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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// Copyright 2017 Intel Corporation
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//
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// Licensed under the Apache License, Version 2.0 (the "License"); you may not
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// use this file except in compliance with the License. You may obtain a copy
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// of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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// License for the specific language governing permissions and limitations
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// under the License.
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////////////////////////////////////////////////////////////////////////////////
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#include <thread>
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#include <chrono>
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#include "OperatingSystem.h"
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namespace ApiWithoutSecrets {
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namespace OS {
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Window::Window() :
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Parameters() {
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}
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WindowParameters Window::GetParameters() const {
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return Parameters;
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}
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#if defined(VK_USE_PLATFORM_WIN32_KHR)
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#define TUTORIAL_NAME "API without Secrets: Introduction to Vulkan"
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LRESULT CALLBACK WndProc( HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam ) {
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switch( message ) {
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case WM_SIZE:
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case WM_EXITSIZEMOVE:
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PostMessage( hWnd, WM_USER + 1, wParam, lParam );
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break;
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case WM_KEYDOWN:
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case WM_CLOSE:
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PostMessage( hWnd, WM_USER + 2, wParam, lParam );
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break;
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default:
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return DefWindowProc( hWnd, message, wParam, lParam );
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}
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return 0;
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}
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Window::~Window() {
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if( Parameters.Handle ) {
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DestroyWindow( Parameters.Handle );
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}
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if( Parameters.Instance ) {
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UnregisterClass( TUTORIAL_NAME, Parameters.Instance );
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}
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}
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bool Window::Create( const char *title ) {
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Parameters.Instance = GetModuleHandle( nullptr );
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// Register window class
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WNDCLASSEX wcex;
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wcex.cbSize = sizeof(WNDCLASSEX);
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wcex.style = CS_HREDRAW | CS_VREDRAW;
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wcex.lpfnWndProc = WndProc;
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wcex.cbClsExtra = 0;
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wcex.cbWndExtra = 0;
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wcex.hInstance = Parameters.Instance;
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wcex.hIcon = NULL;
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wcex.hCursor = LoadCursor( NULL, IDC_ARROW );
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wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
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wcex.lpszMenuName = NULL;
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wcex.lpszClassName = TUTORIAL_NAME;
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wcex.hIconSm = NULL;
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if( !RegisterClassEx( &wcex ) ) {
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return false;
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}
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// Create window
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Parameters.Handle = CreateWindow( TUTORIAL_NAME, title, WS_OVERLAPPEDWINDOW, 20, 20, 500, 500, nullptr, nullptr, Parameters.Instance, nullptr );
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if( !Parameters.Handle ) {
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return false;
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}
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return true;
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}
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bool Window::RenderingLoop( TutorialBase &tutorial ) const {
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// Display window
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ShowWindow( Parameters.Handle, SW_SHOWNORMAL );
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UpdateWindow( Parameters.Handle );
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// Main message loop
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MSG message;
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bool loop = true;
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bool resize = false;
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bool result = true;
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while( loop ) {
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if( PeekMessage( &message, NULL, 0, 0, PM_REMOVE ) ) {
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// Process events
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switch( message.message ) {
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// Resize
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case WM_USER + 1:
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resize = true;
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break;
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// Close
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case WM_USER + 2:
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loop = false;
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break;
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}
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TranslateMessage( &message );
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DispatchMessage( &message );
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} else {
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// Draw
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if( resize ) {
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resize = false;
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if( !tutorial.OnWindowSizeChanged() ) {
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result = false;
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break;
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}
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}
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if( tutorial.ReadyToDraw() ) {
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if( !tutorial.Draw() ) {
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result = false;
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break;
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}
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} else {
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std::this_thread::sleep_for( std::chrono::milliseconds( 100 ) );
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}
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}
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}
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return result;
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}
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#elif defined(VK_USE_PLATFORM_XCB_KHR)
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Window::~Window() {
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xcb_destroy_window( Parameters.Connection, Parameters.Handle );
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xcb_disconnect( Parameters.Connection );
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}
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bool Window::Create( const char *title ) {
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int screen_index;
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Parameters.Connection = xcb_connect( nullptr, &screen_index );
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if( !Parameters.Connection ) {
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return false;
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}
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const xcb_setup_t *setup = xcb_get_setup( Parameters.Connection );
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xcb_screen_iterator_t screen_iterator = xcb_setup_roots_iterator( setup );
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while( screen_index-- > 0 ) {
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xcb_screen_next( &screen_iterator );
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}
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xcb_screen_t *screen = screen_iterator.data;
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Parameters.Handle = xcb_generate_id( Parameters.Connection );
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uint32_t value_list[] = {
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screen->white_pixel,
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XCB_EVENT_MASK_EXPOSURE | XCB_EVENT_MASK_KEY_PRESS | XCB_EVENT_MASK_STRUCTURE_NOTIFY
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};
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xcb_create_window(
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Parameters.Connection,
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XCB_COPY_FROM_PARENT,
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Parameters.Handle,
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screen->root,
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20,
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20,
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500,
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500,
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0,
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XCB_WINDOW_CLASS_INPUT_OUTPUT,
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screen->root_visual,
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XCB_CW_BACK_PIXEL | XCB_CW_EVENT_MASK,
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value_list );
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xcb_flush( Parameters.Connection );
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xcb_change_property(
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Parameters.Connection,
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XCB_PROP_MODE_REPLACE,
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Parameters.Handle,
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XCB_ATOM_WM_NAME,
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XCB_ATOM_STRING,
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8,
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strlen( title ),
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title );
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return true;
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}
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bool Window::RenderingLoop( TutorialBase &tutorial ) const {
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// Prepare notification for window destruction
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xcb_intern_atom_cookie_t protocols_cookie = xcb_intern_atom( Parameters.Connection, 1, 12, "WM_PROTOCOLS" );
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xcb_intern_atom_reply_t *protocols_reply = xcb_intern_atom_reply( Parameters.Connection, protocols_cookie, 0 );
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xcb_intern_atom_cookie_t delete_cookie = xcb_intern_atom( Parameters.Connection, 0, 16, "WM_DELETE_WINDOW" );
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xcb_intern_atom_reply_t *delete_reply = xcb_intern_atom_reply( Parameters.Connection, delete_cookie, 0 );
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xcb_change_property( Parameters.Connection, XCB_PROP_MODE_REPLACE, Parameters.Handle, (*protocols_reply).atom, 4, 32, 1, &(*delete_reply).atom );
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free( protocols_reply );
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// Display window
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xcb_map_window( Parameters.Connection, Parameters.Handle );
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xcb_flush( Parameters.Connection );
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// Main message loop
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xcb_generic_event_t *event;
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bool loop = true;
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bool resize = false;
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bool result = true;
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while( loop ) {
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event = xcb_poll_for_event( Parameters.Connection );
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if( event ) {
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// Process events
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switch (event->response_type & 0x7f) {
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// Resize
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case XCB_CONFIGURE_NOTIFY: {
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xcb_configure_notify_event_t *configure_event = (xcb_configure_notify_event_t*)event;
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static uint16_t width = configure_event->width;
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static uint16_t height = configure_event->height;
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if( ((configure_event->width > 0) && (width != configure_event->width)) ||
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((configure_event->height > 0) && (height != configure_event->height)) ) {
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resize = true;
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width = configure_event->width;
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height = configure_event->height;
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}
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}
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break;
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// Close
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case XCB_CLIENT_MESSAGE:
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if( (*(xcb_client_message_event_t*)event).data.data32[0] == (*delete_reply).atom ) {
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loop = false;
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free( delete_reply );
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}
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break;
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case XCB_KEY_PRESS:
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loop = false;
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break;
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}
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free( event );
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} else {
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// Draw
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if( resize ) {
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resize = false;
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if( !tutorial.OnWindowSizeChanged() ) {
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result = false;
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break;
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}
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}
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if( tutorial.ReadyToDraw() ) {
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if( !tutorial.Draw() ) {
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result = false;
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break;
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}
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} else {
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std::this_thread::sleep_for( std::chrono::milliseconds( 100 ) );
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}
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}
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}
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return result;
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}
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#elif defined(VK_USE_PLATFORM_XLIB_KHR)
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Window::~Window() {
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XDestroyWindow( Parameters.DisplayPtr, Parameters.Handle );
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XCloseDisplay( Parameters.DisplayPtr );
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}
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bool Window::Create( const char *title ) {
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Parameters.DisplayPtr = XOpenDisplay( nullptr );
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if( !Parameters.DisplayPtr ) {
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return false;
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}
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int default_screen = DefaultScreen( Parameters.DisplayPtr );
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Parameters.Handle = XCreateSimpleWindow(
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Parameters.DisplayPtr,
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DefaultRootWindow( Parameters.DisplayPtr ),
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20,
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20,
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500,
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500,
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1,
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BlackPixel( Parameters.DisplayPtr, default_screen ),
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WhitePixel( Parameters.DisplayPtr, default_screen ) );
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// XSync( Parameters.DisplayPtr, false );
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XSetStandardProperties( Parameters.DisplayPtr, Parameters.Handle, title, title, None, nullptr, 0, nullptr );
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XSelectInput( Parameters.DisplayPtr, Parameters.Handle, ExposureMask | KeyPressMask | StructureNotifyMask );
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return true;
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}
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bool Window::RenderingLoop( TutorialBase &tutorial ) const {
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// Prepare notification for window destruction
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Atom delete_window_atom;
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delete_window_atom = XInternAtom( Parameters.DisplayPtr, "WM_DELETE_WINDOW", false );
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XSetWMProtocols( Parameters.DisplayPtr, Parameters.Handle, &delete_window_atom, 1);
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// Display window
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XClearWindow( Parameters.DisplayPtr, Parameters.Handle );
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XMapWindow( Parameters.DisplayPtr, Parameters.Handle );
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// Main message loop
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XEvent event;
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bool loop = true;
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bool resize = false;
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bool result = true;
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while( loop ) {
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if( XPending( Parameters.DisplayPtr ) ) {
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XNextEvent( Parameters.DisplayPtr, &event );
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switch( event.type ) {
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//Process events
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case ConfigureNotify: {
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static int width = event.xconfigure.width;
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static int height = event.xconfigure.height;
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if( ((event.xconfigure.width > 0) && (event.xconfigure.width != width)) ||
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((event.xconfigure.height > 0) && (event.xconfigure.width != height)) ) {
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width = event.xconfigure.width;
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height = event.xconfigure.height;
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resize = true;
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}
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}
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break;
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case KeyPress:
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loop = false;
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break;
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case DestroyNotify:
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loop = false;
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break;
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case ClientMessage:
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if( static_cast<unsigned int>(event.xclient.data.l[0]) == delete_window_atom ) {
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loop = false;
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}
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break;
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}
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} else {
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// Draw
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if( resize ) {
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resize = false;
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if( !tutorial.OnWindowSizeChanged() ) {
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result = false;
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break;
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}
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}
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if( tutorial.ReadyToDraw() ) {
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if( !tutorial.Draw() ) {
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result = false;
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break;
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}
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} else {
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std::this_thread::sleep_for( std::chrono::milliseconds( 100 ) );
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}
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}
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}
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return result;
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}
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#endif
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} // namespace OS
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} // namespace ApiWithoutSecrets
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