1 files changed, 168 insertions, 0 deletions
diff --git a/src/hardwareintegration/client/drm-egl-server/drmeglserverbufferintegration.cpp b/src/hardwareintegration/client/drm-egl-server/drmeglserverbufferintegration.cpp
new file mode 100644
index 00000000..beb9106b
--- /dev/null
+++ b/src/hardwareintegration/client/drm-egl-server/drmeglserverbufferintegration.cpp
@@ -0,0 +1,168 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the plugins 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 Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/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 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Digia gives you certain additional
+** rights.  These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "drmeglserverbufferintegration.h"
+#include <QtWaylandClient/private/qwaylanddisplay_p.h>
+#include <QDebug>
+#include <QtGui/QOpenGLContext>
+
+#include <EGL/egl.h>
+
+QT_BEGIN_NAMESPACE
+
+DrmServerBuffer::DrmServerBuffer(DrmEglServerBufferIntegration *integration
+                                , int32_t name
+                                , int32_t width
+                                , int32_t height
+                                , int32_t stride
+                                , int32_t format)
+    : QWaylandServerBuffer()
+    , m_integration(integration)
+{
+    m_size = QSize(width, height);
+    EGLint egl_format;
+    int32_t format_stride;
+    switch (format) {
+        case QtWayland::qt_drm_egl_server_buffer::format_RGBA32:
+            m_format = QWaylandServerBuffer::RGBA32;
+            egl_format = EGL_DRM_BUFFER_FORMAT_ARGB32_MESA;
+            format_stride = stride / 4;
+            break;
+#ifdef EGL_DRM_BUFFER_FORMAT_A8_MESA
+        case QtWayland::qt_drm_egl_server_buffer::format_A8:
+            m_format = QWaylandServerBuffer::A8;
+            egl_format = EGL_DRM_BUFFER_FORMAT_A8_MESA;
+            format_stride = stride;
+            break;
+#endif
+        default:
+            qWarning("DrmServerBuffer: unknown format");
+            m_format = QWaylandServerBuffer::RGBA32;
+            egl_format = EGL_DRM_BUFFER_FORMAT_ARGB32_MESA;
+            format_stride = stride / 4;
+            break;
+    }
+    EGLint attribs[] = {
+        EGL_WIDTH,                      width,
+        EGL_HEIGHT,                     height,
+        EGL_DRM_BUFFER_STRIDE_MESA,     format_stride,
+        EGL_DRM_BUFFER_FORMAT_MESA,     egl_format,
+        EGL_NONE
+    };
+
+    qintptr name_pointer = name;
+    m_image = integration->eglCreateImageKHR(EGL_NO_CONTEXT, EGL_DRM_BUFFER_MESA, (EGLClientBuffer) name_pointer, attribs);
+
+}
+
+DrmServerBuffer::~DrmServerBuffer()
+{
+    m_integration->eglDestroyImageKHR(m_image);
+}
+
+void DrmServerBuffer::bindTextureToBuffer()
+{
+    if (!QOpenGLContext::currentContext())
+        qWarning("DrmServerBuffer: creating texture with no current context");
+
+    m_integration->glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, m_image);
+
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
+}
+
+void DrmEglServerBufferIntegration::initialize(QWaylandDisplay *display)
+{
+    m_egl_display = eglGetDisplay((EGLNativeDisplayType) display->wl_display());
+    if (EGL_NO_DISPLAY) {
+        qWarning("Failed to initialize drm egl server buffer integration. Could not get egl display from wl_display.");
+        return;
+    }
+
+    const char *extensionString = eglQueryString(m_egl_display, EGL_EXTENSIONS);
+    if (!extensionString || !strstr(extensionString, "EGL_KHR_image")) {
+        qWarning("Failed to initialize drm egl server buffer integration. There is no EGL_KHR_image extension.\n");
+        return;
+    }
+    m_egl_create_image = reinterpret_cast<PFNEGLCREATEIMAGEKHRPROC>(eglGetProcAddress("eglCreateImageKHR"));
+    m_egl_destroy_image = reinterpret_cast<PFNEGLDESTROYIMAGEKHRPROC>(eglGetProcAddress("eglDestroyImageKHR"));
+    if (!m_egl_create_image || !m_egl_destroy_image) {
+        qWarning("Failed to initialize drm egl server buffer integration. Could not resolve eglCreateImageKHR or eglDestroyImageKHR");
+        return;
+    }
+
+    m_gl_egl_image_target_texture = reinterpret_cast<PFNGLEGLIMAGETARGETTEXTURE2DOESPROC>(eglGetProcAddress("glEGLImageTargetTexture2DOES"));
+    if (!m_gl_egl_image_target_texture) {
+        qWarning("Failed to initialize drm egl server buffer integration. Could not resolve glEGLImageTargetTexture2DOES");
+        return;
+    }
+
+    QtWayland::wl_registry::init(wl_display_get_registry(display->wl_display()));
+}
+
+QWaylandServerBuffer *DrmEglServerBufferIntegration::serverBuffer(struct qt_server_buffer *buffer)
+{
+    return static_cast<QWaylandServerBuffer *>(qt_server_buffer_get_user_data(buffer));
+}
+
+void DrmEglServerBufferIntegration::registry_global(uint32_t name, const QString &interface, uint32_t version)
+{
+    Q_UNUSED(version);
+    if (interface == QStringLiteral("qt_drm_egl_server_buffer")) {
+        struct ::wl_registry *registry = QtWayland::wl_registry::object();
+        QtWayland::qt_drm_egl_server_buffer::init(registry, name);
+    }
+}
+
+void DrmEglServerBufferIntegration::drm_egl_server_buffer_server_buffer_created(struct ::qt_server_buffer *id
+                                                                               , int32_t name
+                                                                               , int32_t width
+                                                                               , int32_t height
+                                                                               , int32_t stride
+                                                                               , int32_t format)
+{
+    DrmServerBuffer *server_buffer = new DrmServerBuffer(this, name, width, height, stride, format);
+    qt_server_buffer_set_user_data(id, server_buffer);
+}
+
+QT_END_NAMESPACE