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/*
* Copyright (C) 2017-2018 Team Kodi
* This file is part of Kodi - https://kodi.tv
*
* SPDX-License-Identifier: GPL-2.0-or-later
* See LICENSES/README.md for more information.
*/
#include "EGLFence.h"
#include "EGLUtils.h"
#include "utils/log.h"
using namespace KODI::UTILS::EGL;
CEGLFence::CEGLFence(EGLDisplay display) :
m_display(display)
{
m_eglCreateSyncKHR = CEGLUtils::GetRequiredProcAddress<PFNEGLCREATESYNCKHRPROC>("eglCreateSyncKHR");
m_eglDestroySyncKHR = CEGLUtils::GetRequiredProcAddress<PFNEGLDESTROYSYNCKHRPROC>("eglDestroySyncKHR");
m_eglGetSyncAttribKHR = CEGLUtils::GetRequiredProcAddress<PFNEGLGETSYNCATTRIBKHRPROC>("eglGetSyncAttribKHR");
}
void CEGLFence::CreateFence()
{
m_fence = m_eglCreateSyncKHR(m_display, EGL_SYNC_FENCE_KHR, nullptr);
if (m_fence == EGL_NO_SYNC_KHR)
{
CEGLUtils::Log(LOGERROR, "failed to create egl sync fence");
throw std::runtime_error("failed to create egl sync fence");
}
}
void CEGLFence::DestroyFence()
{
if (m_fence == EGL_NO_SYNC_KHR)
{
return;
}
if (m_eglDestroySyncKHR(m_display, m_fence) != EGL_TRUE)
{
CEGLUtils::Log(LOGERROR, "failed to destroy egl sync fence");
}
m_fence = EGL_NO_SYNC_KHR;
}
bool CEGLFence::IsSignaled()
{
// fence has been destroyed so return true immediately so buffer can be used
if (m_fence == EGL_NO_SYNC_KHR)
{
return true;
}
EGLint status = EGL_UNSIGNALED_KHR;
if (m_eglGetSyncAttribKHR(m_display, m_fence, EGL_SYNC_STATUS_KHR, &status) != EGL_TRUE)
{
CEGLUtils::Log(LOGERROR, "failed to query egl sync fence");
return false;
}
if (status == EGL_SIGNALED_KHR)
{
return true;
}
return false;
}
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