163 lines
3.7 KiB
C++
163 lines
3.7 KiB
C++
/* SPDX-License-Identifier: GPL-2.0-or-later
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* Copyright 2001-2002 NaN Holding BV. All rights reserved. */
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/** \file
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* \ingroup GHOST
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*/
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/**
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* Copyright (C) 2001 NaN Technologies B.V.
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*/
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#include <stdexcept>
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#include "GHOST_ISystem.h"
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#include "GHOST_SystemHeadless.h"
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#if defined(WITH_GHOST_X11) && defined(WITH_GHOST_WAYLAND)
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# include "GHOST_SystemWayland.h"
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# include "GHOST_SystemX11.h"
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#elif defined(WITH_GHOST_X11)
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# include "GHOST_SystemX11.h"
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#elif defined(WITH_GHOST_WAYLAND)
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# include "GHOST_SystemWayland.h"
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#elif defined(WITH_GHOST_SDL)
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# include "GHOST_SystemSDL.h"
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#elif defined(WIN32)
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# include "GHOST_SystemWin32.h"
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#elif defined(__APPLE__)
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# include "GHOST_SystemCocoa.h"
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#endif
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GHOST_ISystem *GHOST_ISystem::m_system = nullptr;
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GHOST_TBacktraceFn GHOST_ISystem::m_backtrace_fn = nullptr;
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GHOST_TSuccess GHOST_ISystem::createSystem()
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{
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GHOST_TSuccess success;
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if (!m_system) {
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#if defined(WITH_HEADLESS)
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/* Pass. */
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#elif defined(WITH_GHOST_WAYLAND)
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# if defined(WITH_GHOST_WAYLAND_DYNLOAD)
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const bool has_wayland_libraries = ghost_wl_dynload_libraries();
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# else
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const bool has_wayland_libraries = true;
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# endif
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#endif
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#if defined(WITH_HEADLESS)
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/* Pass. */
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#elif defined(WITH_GHOST_X11) && defined(WITH_GHOST_WAYLAND)
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/* Special case, try Wayland, fall back to X11. */
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try {
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m_system = has_wayland_libraries ? new GHOST_SystemWayland() : nullptr;
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}
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catch (const std::runtime_error &) {
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delete m_system;
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m_system = nullptr;
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}
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if (!m_system) {
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/* Try to fallback to X11. */
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try {
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m_system = new GHOST_SystemX11();
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}
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catch (const std::runtime_error &) {
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delete m_system;
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m_system = nullptr;
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}
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}
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#elif defined(WITH_GHOST_X11)
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try {
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m_system = new GHOST_SystemX11();
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}
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catch (const std::runtime_error &) {
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delete m_system;
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m_system = nullptr;
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}
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#elif defined(WITH_GHOST_WAYLAND)
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try {
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m_system = has_wayland_libraries ? new GHOST_SystemWayland() : nullptr;
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}
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catch (const std::runtime_error &) {
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delete m_system;
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m_system = nullptr;
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}
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#elif defined(WITH_GHOST_SDL)
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try {
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m_system = new GHOST_SystemSDL();
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}
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catch (const std::runtime_error &) {
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delete m_system;
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m_system = nullptr;
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}
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#elif defined(WIN32)
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m_system = new GHOST_SystemWin32();
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#elif defined(__APPLE__)
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m_system = new GHOST_SystemCocoa();
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#endif
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success = m_system != nullptr ? GHOST_kSuccess : GHOST_kFailure;
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}
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else {
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success = GHOST_kFailure;
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}
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if (success) {
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success = m_system->init();
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}
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return success;
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}
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GHOST_TSuccess GHOST_ISystem::createSystemBackground()
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{
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GHOST_TSuccess success;
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if (!m_system) {
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#if !defined(WITH_HEADLESS)
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/* Try to create a off-screen render surface with the graphical systems. */
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success = createSystem();
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if (success) {
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return success;
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}
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/* Try to fallback to headless mode if all else fails. */
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#endif
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m_system = new GHOST_SystemHeadless();
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success = m_system != nullptr ? GHOST_kSuccess : GHOST_kFailure;
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}
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else {
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success = GHOST_kFailure;
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}
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if (success) {
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success = m_system->init();
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}
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return success;
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}
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GHOST_TSuccess GHOST_ISystem::disposeSystem()
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{
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GHOST_TSuccess success = GHOST_kSuccess;
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if (m_system) {
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delete m_system;
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m_system = nullptr;
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}
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else {
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success = GHOST_kFailure;
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}
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return success;
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}
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GHOST_ISystem *GHOST_ISystem::getSystem()
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{
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return m_system;
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}
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GHOST_TBacktraceFn GHOST_ISystem::getBacktraceFn()
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{
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return GHOST_ISystem::m_backtrace_fn;
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}
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void GHOST_ISystem::setBacktraceFn(GHOST_TBacktraceFn backtrace_fn)
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{
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GHOST_ISystem::m_backtrace_fn = backtrace_fn;
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}
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