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// Copyright (C) 2018 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "gl_context_qt.h"
#include "ozone/gl_surface_glx_qt.h"
#include "ui/gl/gl_bindings.h"
#include "ui/gl/gl_display.h"
#include "ui/gl/gl_display_manager.h"
#include "ui/gl/gl_surface.h"
#include "ui/gl/gl_surface_glx.h"
namespace gl {
static bool HasGLXExtension(const char *name)
{
return GLSurface::ExtensionsContain(GLSurfaceQt::g_extensions.c_str(), name);
}
bool GLSurfaceGLX::IsCreateContextSupported()
{
return HasGLXExtension("GLX_ARB_create_context");
}
bool GLSurfaceGLX::IsCreateContextRobustnessSupported()
{
return GLContextHelper::isCreateContextRobustnessSupported() && HasGLXExtension("GLX_ARB_create_context_robustness");
}
bool GLSurfaceGLX::IsCreateContextProfileSupported()
{
return false; // ExtensionsContain(g_extensions, "GLX_ARB_create_context_profile");
}
bool GLSurfaceGLX::IsCreateContextES2ProfileSupported()
{
return HasGLXExtension("GLX_ARB_create_context_es2_profile");
}
bool GLSurfaceGLX::IsRobustnessVideoMemoryPurgeSupported()
{
return false;
}
bool GLSurfaceGLXQt::s_initialized = false;
GLSurfaceGLXQt::GLSurfaceGLXQt(const gfx::Size& size)
: GLSurfaceQt(size),
m_surfaceBuffer(0)
{
}
GLSurfaceGLXQt::~GLSurfaceGLXQt()
{
Destroy();
}
GLDisplay *GLSurfaceGLXQt::InitializeOneOff(gl::GpuPreference preference)
{
if (s_initialized)
return g_display;
g_display = GLDisplayManagerX11::GetInstance()->GetDisplay(preference);
if (!g_display->GetDisplay()) {
LOG(ERROR) << "GLContextHelper::getXDisplay() failed.";
return nullptr;
}
g_config = GLContextHelper::getGlXConfig();
if (!g_config) {
LOG(ERROR) << "GLContextHelper::getGlxConfig() failed.";
return nullptr;
}
Display* display = static_cast<Display*>(g_display->GetDisplay());
int major, minor;
if (!glXQueryVersion(display, &major, &minor)) {
LOG(ERROR) << "glxQueryVersion failed.";
return nullptr;
}
if (major == 1 && minor < 3) {
LOG(ERROR) << "GLX 1.3 or later is required.";
return nullptr;
}
s_initialized = true;
return g_display;
}
bool GLSurfaceGLXQt::InitializeExtensionSettingsOneOff()
{
if (!s_initialized)
return false;
Display* display = static_cast<Display*>(g_display->GetDisplay());
GLSurfaceQt::g_extensions = glXQueryExtensionsString(display, 0);
g_driver_glx.InitializeExtensionBindings(g_extensions.c_str());
return true;
}
bool GLSurfaceGLXQt::Initialize(GLSurfaceFormat format)
{
Q_ASSERT(!m_surfaceBuffer);
Display* display = static_cast<Display*>(g_display->GetDisplay());
const int pbuffer_attributes[] = {
GLX_PBUFFER_WIDTH, m_size.width(),
GLX_PBUFFER_HEIGHT, m_size.height(),
GLX_LARGEST_PBUFFER, GL_FALSE,
GLX_PRESERVED_CONTENTS, GL_FALSE,
GL_NONE // MEMO doc: ...must be terminated with None or NULL
};
m_surfaceBuffer = glXCreatePbuffer(display, static_cast<GLXFBConfig>(g_config), pbuffer_attributes);
m_format = format;
if (!m_surfaceBuffer) {
Destroy();
LOG(ERROR) << "glXCreatePbuffer failed.";
return false;
}
return true;
}
void GLSurfaceGLXQt::Destroy()
{
if (m_surfaceBuffer) {
glXDestroyPbuffer(static_cast<Display*>(g_display->GetDisplay()), m_surfaceBuffer);
m_surfaceBuffer = 0;
}
}
void* GLSurfaceGLXQt::GetHandle()
{
return reinterpret_cast<void*>(m_surfaceBuffer);
}
} //namespace gl
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