Move Renderer specific classes into new folder

This is another step toward isolating the renderer from the render aspect

Change-Id: I4031675b961d6645b65bbe05cf62d150993038b0
Task-number: QTBUG-61151
Reviewed-by: Paul Lemire <paul.lemire@kdab.com>

1 files changed, 103 insertions, 0 deletions

diff --git a/src/render/renderers/opengl/graphicshelpers/graphicshelperes3_2.cpp b/src/render/renderers/opengl/graphicshelpers/graphicshelperes3_2.cpp
new file mode 100644
index 000000000..6290d091d
--- /dev/null
+++ b/src/render/renderers/opengl/graphicshelpers/graphicshelperes3_2.cpp
@@ -0,0 +1,103 @@
+/****************************************************************************
+**
+** Copyright (C) 2017 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the Qt3D 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.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "graphicshelperes3_2_p.h"
+#include <QOpenGLExtraFunctions>
+#include <Qt3DRender/qrendertargetoutput.h>
+#include <private/attachmentpack_p.h>
+
+QT_BEGIN_NAMESPACE
+
+#ifndef GL_DRAW_FRAMEBUFFER
+#define GL_DRAW_FRAMEBUFFER 0x8CA9
+#endif
+
+#ifndef GL_DEPTH_STENCIL_ATTACHMENT
+#define GL_DEPTH_STENCIL_ATTACHMENT       0x821A
+#endif
+
+namespace Qt3DRender {
+namespace Render {
+
+GraphicsHelperES3_2::GraphicsHelperES3_2()
+{
+}
+
+GraphicsHelperES3_2::~GraphicsHelperES3_2()
+{
+}
+
+bool GraphicsHelperES3_2::frameBufferNeedsRenderBuffer(const Attachment &attachment)
+{
+    Q_UNUSED(attachment);
+    // This is first ES version where we have glFramebufferTexture, so
+    // attaching a D24S8 texture to the combined depth-stencil attachment point
+    // should work.
+    return false;
+}
+
+void GraphicsHelperES3_2::bindFrameBufferAttachment(QOpenGLTexture *texture, const Attachment &attachment)
+{
+    GLenum attr = GL_COLOR_ATTACHMENT0;
+
+    if (attachment.m_point <= QRenderTargetOutput::Color15)
+        attr = GL_COLOR_ATTACHMENT0 + attachment.m_point;
+    else if (attachment.m_point == QRenderTargetOutput::Depth)
+        attr = GL_DEPTH_ATTACHMENT;
+    else if (attachment.m_point == QRenderTargetOutput::Stencil)
+        attr = GL_STENCIL_ATTACHMENT;
+    else if (attachment.m_point == QRenderTargetOutput::DepthStencil)
+        attr = GL_DEPTH_STENCIL_ATTACHMENT;
+    else
+        qCritical() << "Unsupported FBO attachment OpenGL ES 3.2";
+
+    const QOpenGLTexture::Target target = texture->target();
+
+    texture->bind();
+    if (target == QOpenGLTexture::TargetCubeMap && attachment.m_face != QAbstractTexture::AllFaces)
+        m_funcs->glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, attr, attachment.m_face, texture->textureId(), attachment.m_mipLevel);
+    else
+        m_extraFuncs->glFramebufferTexture(GL_DRAW_FRAMEBUFFER, attr, texture->textureId(), attachment.m_mipLevel);
+    texture->release();
+}
+
+} // namespace Render
+} // namespace Qt3DRender
+
+QT_END_NAMESPACE