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/* SPDX-License-Identifier: GPL-2.0-or-later */
/** \file
* \ingroup GHOST
* Declaration of GHOST_SystemHeadless class.
*/
#pragma once
#include "../GHOST_Types.h"
#include "GHOST_DisplayManagerNULL.h"
#include "GHOST_System.h"
#include "GHOST_WindowNULL.h"
#ifdef __linux__
# include "GHOST_ContextEGL.h"
#endif
#include "GHOST_ContextNone.h"
class GHOST_WindowNULL;
class GHOST_SystemHeadless : public GHOST_System {
public:
GHOST_SystemHeadless() : GHOST_System()
{ /* nop */
}
~GHOST_SystemHeadless() override = default;
bool processEvents(bool /*waitForEvent*/) override
{
return false;
}
bool setConsoleWindowState(GHOST_TConsoleWindowState /*action*/) override
{
return 0;
}
GHOST_TSuccess getModifierKeys(GHOST_ModifierKeys & /*keys*/) const override
{
return GHOST_kSuccess;
}
GHOST_TSuccess getButtons(GHOST_Buttons & /*buttons*/) const override
{
return GHOST_kSuccess;
}
char *getClipboard(bool /*selection*/) const override
{
return nullptr;
}
void putClipboard(const char * /*buffer*/, bool /*selection*/) const override
{ /* nop */
}
uint64_t getMilliSeconds() const override
{
return 0;
}
uint8_t getNumDisplays() const override
{
return uint8_t(1);
}
GHOST_TSuccess getCursorPosition(int32_t & /*x*/, int32_t & /*y*/) const override
{
return GHOST_kFailure;
}
GHOST_TSuccess setCursorPosition(int32_t /*x*/, int32_t /*y*/) override
{
return GHOST_kFailure;
}
void getMainDisplayDimensions(uint32_t & /*width*/, uint32_t & /*height*/) const override
{ /* nop */
}
void getAllDisplayDimensions(uint32_t & /*width*/, uint32_t & /*height*/) const override
{ /* nop */
}
GHOST_IContext *createOffscreenContext(GHOST_GLSettings /*glSettings*/) override
{
#ifdef __linux__
GHOST_Context *context;
for (int minor = 6; minor >= 0; --minor) {
context = new GHOST_ContextEGL((GHOST_System *)this,
false,
EGLNativeWindowType(0),
EGLNativeDisplayType(EGL_DEFAULT_DISPLAY),
EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT,
4,
minor,
GHOST_OPENGL_EGL_CONTEXT_FLAGS,
GHOST_OPENGL_EGL_RESET_NOTIFICATION_STRATEGY,
EGL_OPENGL_API);
if (context->initializeDrawingContext()) {
return context;
}
delete context;
context = nullptr;
}
context = new GHOST_ContextEGL((GHOST_System *)this,
false,
EGLNativeWindowType(0),
EGLNativeDisplayType(EGL_DEFAULT_DISPLAY),
EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT,
3,
3,
GHOST_OPENGL_EGL_CONTEXT_FLAGS,
GHOST_OPENGL_EGL_RESET_NOTIFICATION_STRATEGY,
EGL_OPENGL_API);
if (context->initializeDrawingContext() != GHOST_kSuccess) {
delete context;
context = nullptr;
}
return context;
#else
return nullptr;
#endif
}
GHOST_TSuccess disposeContext(GHOST_IContext *context) override
{
delete context;
return GHOST_kSuccess;
}
GHOST_TSuccess init() override
{
GHOST_TSuccess success = GHOST_System::init();
if (success) {
m_displayManager = new GHOST_DisplayManagerNULL();
if (m_displayManager) {
return GHOST_kSuccess;
}
}
return GHOST_kFailure;
}
GHOST_IWindow *createWindow(const char *title,
int32_t left,
int32_t top,
uint32_t width,
uint32_t height,
GHOST_TWindowState state,
GHOST_TDrawingContextType type,
GHOST_GLSettings glSettings,
const bool /*exclusive*/,
const bool /*is_dialog*/,
const GHOST_IWindow *parentWindow) override
{
return new GHOST_WindowNULL(title,
left,
top,
width,
height,
state,
parentWindow,
type,
((glSettings.flags & GHOST_glStereoVisual) != 0));
}
GHOST_IWindow *getWindowUnderCursor(int32_t /*x*/, int32_t /*y*/) override
{
return nullptr;
}
};
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