1 files changed, 123 insertions, 0 deletions
diff --git a/src/gui/opengl/platform/egl/qeglstreamconvenience.cpp b/src/gui/opengl/platform/egl/qeglstreamconvenience.cpp
new file mode 100644
index 0000000000..228cdbb06b
--- /dev/null
+++ b/src/gui/opengl/platform/egl/qeglstreamconvenience.cpp
@@ -0,0 +1,123 @@
+/****************************************************************************
+**
+** Copyright (C) 2020 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the QtGui 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 "qeglstreamconvenience_p.h"
+#include <string.h>
+
+QT_BEGIN_NAMESPACE
+
+QEGLStreamConvenience::QEGLStreamConvenience()
+    : initialized(false),
+      has_egl_platform_device(false),
+      has_egl_device_base(false),
+      has_egl_stream(false),
+      has_egl_stream_producer_eglsurface(false),
+      has_egl_stream_consumer_egloutput(false),
+      has_egl_output_drm(false),
+      has_egl_output_base(false),
+      has_egl_stream_cross_process_fd(false),
+      has_egl_stream_consumer_gltexture(false)
+{
+    const char *extensions = eglQueryString(EGL_NO_DISPLAY, EGL_EXTENSIONS);
+    if (!extensions) {
+        qWarning("Failed to query EGL extensions");
+        return;
+    }
+
+    query_devices = reinterpret_cast<PFNEGLQUERYDEVICESEXTPROC>(eglGetProcAddress("eglQueryDevicesEXT"));
+    query_device_string = reinterpret_cast<PFNEGLQUERYDEVICESTRINGEXTPROC>(eglGetProcAddress("eglQueryDeviceStringEXT"));
+    get_platform_display = reinterpret_cast<PFNEGLGETPLATFORMDISPLAYEXTPROC>(eglGetProcAddress("eglGetPlatformDisplayEXT"));
+
+    has_egl_device_base = strstr(extensions, "EGL_EXT_device_base");
+    has_egl_platform_device = strstr(extensions, "EGL_EXT_platform_device");
+}
+
+void QEGLStreamConvenience::initialize(EGLDisplay dpy)
+{
+    if (initialized)
+        return;
+
+    if (!eglBindAPI(EGL_OPENGL_ES_API)) {
+        qWarning("Failed to bind OpenGL ES API");
+        return;
+    }
+
+    const char *extensions = eglQueryString(dpy, EGL_EXTENSIONS);
+    if (!extensions) {
+        qWarning("Failed to query EGL extensions");
+        return;
+    }
+
+    create_stream = reinterpret_cast<PFNEGLCREATESTREAMKHRPROC>(eglGetProcAddress("eglCreateStreamKHR"));
+    destroy_stream = reinterpret_cast<PFNEGLDESTROYSTREAMKHRPROC>(eglGetProcAddress("eglDestroyStreamKHR"));
+    stream_attrib = reinterpret_cast<PFNEGLSTREAMATTRIBKHRPROC>(eglGetProcAddress("eglStreamAttribKHR"));
+    query_stream = reinterpret_cast<PFNEGLQUERYSTREAMKHRPROC>(eglGetProcAddress("eglQueryStreamKHR"));
+    query_stream_u64 = reinterpret_cast<PFNEGLQUERYSTREAMU64KHRPROC>(eglGetProcAddress("eglQueryStreamu64KHR"));
+    create_stream_producer_surface = reinterpret_cast<PFNEGLCREATESTREAMPRODUCERSURFACEKHRPROC>(eglGetProcAddress("eglCreateStreamProducerSurfaceKHR"));
+    stream_consumer_output = reinterpret_cast<PFNEGLSTREAMCONSUMEROUTPUTEXTPROC>(eglGetProcAddress("eglStreamConsumerOutputEXT"));
+    get_output_layers = reinterpret_cast<PFNEGLGETOUTPUTLAYERSEXTPROC>(eglGetProcAddress("eglGetOutputLayersEXT"));
+    get_output_ports = reinterpret_cast<PFNEGLGETOUTPUTPORTSEXTPROC>(eglGetProcAddress("eglGetOutputPortsEXT"));
+    output_layer_attrib = reinterpret_cast<PFNEGLOUTPUTLAYERATTRIBEXTPROC>(eglGetProcAddress("eglOutputLayerAttribEXT"));
+    query_output_layer_attrib = reinterpret_cast<PFNEGLQUERYOUTPUTLAYERATTRIBEXTPROC>(eglGetProcAddress("eglQueryOutputLayerAttribEXT"));
+    query_output_layer_string = reinterpret_cast<PFNEGLQUERYOUTPUTLAYERSTRINGEXTPROC>(eglGetProcAddress("eglQueryOutputLayerStringEXT"));
+    query_output_port_attrib = reinterpret_cast<PFNEGLQUERYOUTPUTPORTATTRIBEXTPROC>(eglGetProcAddress("eglQueryOutputPortAttribEXT"));
+    query_output_port_string = reinterpret_cast<PFNEGLQUERYOUTPUTPORTSTRINGEXTPROC>(eglGetProcAddress("eglQueryOutputPortStringEXT"));
+    get_stream_file_descriptor = reinterpret_cast<PFNEGLGETSTREAMFILEDESCRIPTORKHRPROC>(eglGetProcAddress("eglGetStreamFileDescriptorKHR"));
+    create_stream_from_file_descriptor = reinterpret_cast<PFNEGLCREATESTREAMFROMFILEDESCRIPTORKHRPROC>(eglGetProcAddress("eglCreateStreamFromFileDescriptorKHR"));
+    stream_consumer_gltexture = reinterpret_cast<PFNEGLSTREAMCONSUMERGLTEXTUREEXTERNALKHRPROC>(eglGetProcAddress("eglStreamConsumerGLTextureExternalKHR"));
+    stream_consumer_acquire = reinterpret_cast<PFNEGLSTREAMCONSUMERACQUIREKHRPROC>(eglGetProcAddress("eglStreamConsumerAcquireKHR"));
+    stream_consumer_release = reinterpret_cast<PFNEGLSTREAMCONSUMERRELEASEKHRPROC>(eglGetProcAddress("eglStreamConsumerReleaseKHR"));
+    create_stream_attrib_nv = reinterpret_cast<PFNEGLCREATESTREAMATTRIBNVPROC>(eglGetProcAddress("eglCreateStreamAttribNV"));
+    set_stream_attrib_nv = reinterpret_cast<PFNEGLSETSTREAMATTRIBNVPROC>(eglGetProcAddress("eglSetStreamAttribNV"));
+    query_stream_attrib_nv = reinterpret_cast<PFNEGLQUERYSTREAMATTRIBNVPROC>(eglGetProcAddress("eglQueryStreamAttribNV"));
+    acquire_stream_attrib_nv = reinterpret_cast<PFNEGLSTREAMCONSUMERACQUIREATTRIBNVPROC>(eglGetProcAddress("eglStreamConsumerAcquireAttribNV"));
+    release_stream_attrib_nv = reinterpret_cast<PFNEGLSTREAMCONSUMERRELEASEATTRIBNVPROC>(eglGetProcAddress("eglStreamConsumerReleaseAttribNV"));
+
+    has_egl_stream = strstr(extensions, "EGL_KHR_stream");
+    has_egl_stream_producer_eglsurface = strstr(extensions, "EGL_KHR_stream_producer_eglsurface");
+    has_egl_stream_consumer_egloutput = strstr(extensions, "EGL_EXT_stream_consumer_egloutput");
+    has_egl_output_drm = strstr(extensions, "EGL_EXT_output_drm");
+    has_egl_output_base = strstr(extensions, "EGL_EXT_output_base");
+    has_egl_stream_cross_process_fd = strstr(extensions, "EGL_KHR_stream_cross_process_fd");
+    has_egl_stream_consumer_gltexture = strstr(extensions, "EGL_KHR_stream_consumer_gltexture");
+
+    initialized = true;
+}
+
+QT_END_NAMESPACE