Split GLSurfaceQt

Move GLSurfaceGLXQt and GLSurfaceEGLQt to own
implementation files,so they can be reused easly
by ozone backends.

Change-Id: Ie403a941424343e13775866772bed709d7cbff6a
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>

1 files changed, 213 insertions, 0 deletions

diff --git a/src/core/ozone/gl_surface_glx_qt.cpp b/src/core/ozone/gl_surface_glx_qt.cpp
new file mode 100644
index 000000000..51b0f58b0
--- /dev/null
+++ b/src/core/ozone/gl_surface_glx_qt.cpp
@@ -0,0 +1,213 @@
+/****************************************************************************
+**
+** Copyright (C) 2018 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the QtWebEngine module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+// 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.
+
+#if defined(USE_X11)
+
+#include "gl_context_qt.h"
+#include "ozone/gl_surface_glx_qt.h"
+#include "ui/gl/gl_bindings.h"
+#include "ui/gl/gl_surface_glx.h"
+#include <GL/glx.h>
+#include <GL/glxext.h>
+
+namespace gl {
+
+bool GLSurfaceGLXQt::s_initialized = false;
+
+GLSurfaceGLXQt::~GLSurfaceGLXQt()
+{
+    Destroy();
+}
+
+void GLSurfaceGLX::ShutdownOneOff()
+{
+}
+
+bool GLSurfaceGLX::IsCreateContextSupported()
+{
+    return ExtensionsContain(GLSurfaceQt::g_extensions, "GLX_ARB_create_context");
+}
+
+bool GLSurfaceGLX::IsCreateContextRobustnessSupported()
+{
+    return false; // ExtensionsContain(g_extensions, "GLX_ARB_create_context_robustness");
+}
+
+bool GLSurfaceGLX::IsEXTSwapControlSupported()
+{
+    return HasGLXExtension("GLX_EXT_swap_control");
+}
+
+bool GLSurfaceGLX::IsMESASwapControlSupported()
+{
+    return HasGLXExtension("GLX_MESA_swap_control");
+}
+
+bool GLSurfaceGLX::IsCreateContextProfileSupported()
+{
+    return false; // ExtensionsContain(g_extensions, "GLX_ARB_create_context_profile");
+}
+
+bool GLSurfaceGLX::IsCreateContextES2ProfileSupported()
+{
+    return ExtensionsContain(GLSurfaceQt::g_extensions, "GLX_ARB_create_context_es2_profile");
+}
+
+bool GLSurfaceGLX::IsOMLSyncControlSupported()
+{
+    return false; // ExtensionsContain(g_extensions, "GLX_OML_sync_control");
+}
+
+bool GLSurfaceGLX::HasGLXExtension(const char *name)
+{
+    return ExtensionsContain(GLSurfaceQt::g_extensions, name);
+}
+
+bool GLSurfaceGLX::IsTextureFromPixmapSupported()
+{
+    return ExtensionsContain(GLSurfaceQt::g_extensions, "GLX_EXT_texture_from_pixmap");
+}
+
+const char* GLSurfaceGLX::GetGLXExtensions()
+{
+    return GLSurfaceQt::g_extensions;
+}
+
+bool GLSurfaceGLXQt::InitializeOneOff()
+{
+    if (s_initialized)
+        return true;
+
+    XInitThreads();
+
+    g_display = GLContextHelper::getXDisplay();
+    if (!g_display) {
+        LOG(ERROR) << "GLContextHelper::getXDisplay() failed.";
+        return false;
+    }
+
+    g_config = GLContextHelper::getXConfig();
+    if (!g_config) {
+        LOG(ERROR) << "GLContextHelper::getXConfig() failed.";
+        return false;
+    }
+
+    Display* display = static_cast<Display*>(g_display);
+    int major, minor;
+    if (!glXQueryVersion(display, &major, &minor)) {
+        LOG(ERROR) << "glxQueryVersion failed.";
+        return false;
+    }
+
+    if (major == 1 && minor < 3) {
+        LOG(ERROR) << "GLX 1.3 or later is required.";
+        return false;
+    }
+
+    s_initialized = true;
+    return true;
+}
+
+
+bool GLSurfaceGLXQt::InitializeExtensionSettingsOneOff()
+{
+    if (!s_initialized)
+        return false;
+
+    Display* display = static_cast<Display*>(g_display);
+    GLSurfaceQt::g_extensions = glXQueryExtensionsString(display, 0);
+    g_driver_glx.InitializeExtensionBindings();
+    return true;
+}
+
+bool GLSurfaceGLX::InitializeExtensionSettingsOneOff()
+{
+    return GLSurfaceGLXQt::InitializeExtensionSettingsOneOff();
+}
+
+bool GLSurfaceGLXQt::Initialize(GLSurfaceFormat format)
+{
+    Q_ASSERT(!m_surfaceBuffer);
+
+    Display* display = static_cast<Display*>(g_display);
+    const int pbuffer_attributes[] = {
+        GLX_PBUFFER_WIDTH, m_size.width(),
+        GLX_PBUFFER_HEIGHT, m_size.height(),
+        GLX_LARGEST_PBUFFER, x11::False,
+        GLX_PRESERVED_CONTENTS, x11::False,
+        GLX_NONE
+    };
+
+    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), m_surfaceBuffer);
+        m_surfaceBuffer = 0;
+    }
+}
+
+GLSurfaceGLXQt::GLSurfaceGLXQt(const gfx::Size& size)
+    : GLSurfaceQt(size),
+      m_surfaceBuffer(0)
+{
+}
+
+void* GLSurfaceGLXQt::GetHandle()
+{
+    return reinterpret_cast<void*>(m_surfaceBuffer);
+}
+
+} //namespace gl
+
+#endif // defined(USE_X11)