Move EGLDevice/Output/Stream resolvers into eglconvenience

Needed by Qt Wayland as well.

Change-Id: Ic349f0a79831e9121cbe9885246897efea2701d5
Reviewed-by: Andy Nichols <andy.nichols@theqtcompany.com>

3 files changed, 291 insertions, 2 deletions

diff --git a/src/platformsupport/eglconvenience/eglconvenience.pri b/src/platformsupport/eglconvenience/eglconvenience.pri
index 457efd68fb..1cab1e556f 100644
--- a/src/platformsupport/eglconvenience/eglconvenience.pri
+++ b/src/platformsupport/eglconvenience/eglconvenience.pri
@@ -1,9 +1,11 @@
 contains(QT_CONFIG,egl) {
     HEADERS += \
-        $$PWD/qeglconvenience_p.h
+        $$PWD/qeglconvenience_p.h \
+        $$PWD/qeglstreamconvenience_p.h
 
     SOURCES += \
-        $$PWD/qeglconvenience.cpp
+        $$PWD/qeglconvenience.cpp \
+        $$PWD/qeglstreamconvenience.cpp
 
     contains(QT_CONFIG,opengl) {
         HEADERS += $$PWD/qeglplatformcontext_p.h \
diff --git a/src/platformsupport/eglconvenience/qeglstreamconvenience.cpp b/src/platformsupport/eglconvenience/qeglstreamconvenience.cpp
new file mode 100644
index 0000000000..2ace144811
--- /dev/null
+++ b/src/platformsupport/eglconvenience/qeglstreamconvenience.cpp
@@ -0,0 +1,112 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the plugins of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL21$
+** 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 http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://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 2.1 or version 3 as published by the Free
+** Software Foundation and appearing in the file LICENSE.LGPLv21 and
+** LICENSE.LGPLv3 included in the packaging of this file. Please review the
+** following information to ensure the GNU Lesser General Public License
+** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** As a special exception, The Qt Company gives you certain additional
+** rights. These rights are described in The Qt Company LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#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"));
+
+    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
diff --git a/src/platformsupport/eglconvenience/qeglstreamconvenience_p.h b/src/platformsupport/eglconvenience/qeglstreamconvenience_p.h
new file mode 100644
index 0000000000..12787d03ae
--- /dev/null
+++ b/src/platformsupport/eglconvenience/qeglstreamconvenience_p.h
@@ -0,0 +1,175 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the plugins of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL21$
+** 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 http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://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 2.1 or version 3 as published by the Free
+** Software Foundation and appearing in the file LICENSE.LGPLv21 and
+** LICENSE.LGPLv3 included in the packaging of this file. Please review the
+** following information to ensure the GNU Lesser General Public License
+** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** As a special exception, The Qt Company gives you certain additional
+** rights. These rights are described in The Qt Company LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QEGLSTREAMCONVENIENCE_H
+#define QEGLSTREAMCONVENIENCE_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include <qglobal.h>
+#include <EGL/egl.h>
+#include <EGL/eglext.h>
+
+// This provides runtime EGLDevice/Output/Stream support even when eglext.h in
+// the sysroot is not up-to-date.
+
+#ifndef EGL_VERSION_1_5
+typedef intptr_t EGLAttrib;
+#endif
+
+#ifndef EGL_EXT_platform_base
+typedef EGLDisplay (EGLAPIENTRYP PFNEGLGETPLATFORMDISPLAYEXTPROC) (EGLenum platform, void *native_display, const EGLint *attrib_list);
+#endif
+
+#ifndef EGL_EXT_device_base
+typedef void *EGLDeviceEXT;
+#define EGL_NO_DEVICE_EXT                 ((EGLDeviceEXT)(0))
+typedef EGLBoolean (EGLAPIENTRYP PFNEGLQUERYDEVICESEXTPROC) (EGLint max_devices, EGLDeviceEXT *devices, EGLint *num_devices);
+typedef const char *(EGLAPIENTRYP PFNEGLQUERYDEVICESTRINGEXTPROC) (EGLDeviceEXT device, EGLint name);
+#endif
+
+#ifndef EGL_EXT_output_base
+typedef void *EGLOutputLayerEXT;
+typedef void *EGLOutputPortEXT;
+#define EGL_NO_OUTPUT_LAYER_EXT           ((EGLOutputLayerEXT)0)
+typedef EGLBoolean (EGLAPIENTRYP PFNEGLGETOUTPUTLAYERSEXTPROC) (EGLDisplay dpy, const EGLAttrib *attrib_list, EGLOutputLayerEXT *layers, EGLint max_layers, EGLint *num_layers);
+typedef EGLBoolean (EGLAPIENTRYP PFNEGLGETOUTPUTPORTSEXTPROC) (EGLDisplay dpy, const EGLAttrib *attrib_list, EGLOutputPortEXT *ports, EGLint max_ports, EGLint *num_ports);
+typedef EGLBoolean (EGLAPIENTRYP PFNEGLOUTPUTLAYERATTRIBEXTPROC) (EGLDisplay dpy, EGLOutputLayerEXT layer, EGLint attribute, EGLAttrib value);
+typedef EGLBoolean (EGLAPIENTRYP PFNEGLQUERYOUTPUTLAYERATTRIBEXTPROC) (EGLDisplay dpy, EGLOutputLayerEXT layer, EGLint attribute, EGLAttrib *value);
+typedef const char *(EGLAPIENTRYP PFNEGLQUERYOUTPUTLAYERSTRINGEXTPROC) (EGLDisplay dpy, EGLOutputLayerEXT layer, EGLint name);
+typedef EGLBoolean (EGLAPIENTRYP PFNEGLQUERYOUTPUTPORTATTRIBEXTPROC) (EGLDisplay dpy, EGLOutputPortEXT port, EGLint attribute, EGLAttrib *value);
+typedef const char *(EGLAPIENTRYP PFNEGLQUERYOUTPUTPORTSTRINGEXTPROC) (EGLDisplay dpy, EGLOutputPortEXT port, EGLint name);
+#endif
+
+#ifndef EGL_KHR_stream
+typedef void *EGLStreamKHR;
+typedef quint64 EGLuint64KHR;
+#define EGL_NO_STREAM_KHR                 ((EGLStreamKHR)0)
+typedef EGLStreamKHR (EGLAPIENTRYP PFNEGLCREATESTREAMKHRPROC) (EGLDisplay dpy, const EGLint *attrib_list);
+typedef EGLBoolean (EGLAPIENTRYP PFNEGLDESTROYSTREAMKHRPROC) (EGLDisplay dpy, EGLStreamKHR stream);
+typedef EGLBoolean (EGLAPIENTRYP PFNEGLSTREAMATTRIBKHRPROC) (EGLDisplay dpy, EGLStreamKHR stream, EGLenum attribute, EGLint value);
+typedef EGLBoolean (EGLAPIENTRYP PFNEGLQUERYSTREAMKHRPROC) (EGLDisplay dpy, EGLStreamKHR stream, EGLenum attribute, EGLint *value);
+typedef EGLBoolean (EGLAPIENTRYP PFNEGLQUERYSTREAMU64KHRPROC) (EGLDisplay dpy, EGLStreamKHR stream, EGLenum attribute, EGLuint64KHR *value);
+#endif
+
+#ifndef EGL_KHR_stream_producer_eglsurface
+#define EGL_STREAM_BIT_KHR                0x0800
+typedef EGLSurface (EGLAPIENTRYP PFNEGLCREATESTREAMPRODUCERSURFACEKHRPROC) (EGLDisplay dpy, EGLConfig config, EGLStreamKHR stream, const EGLint *attrib_list);
+#endif
+
+#ifndef EGL_KHR_stream_cross_process_fd
+typedef int EGLNativeFileDescriptorKHR;
+#define EGL_NO_FILE_DESCRIPTOR_KHR        ((EGLNativeFileDescriptorKHR)(-1))
+typedef EGLNativeFileDescriptorKHR (EGLAPIENTRYP PFNEGLGETSTREAMFILEDESCRIPTORKHRPROC) (EGLDisplay dpy, EGLStreamKHR stream);
+typedef EGLStreamKHR (EGLAPIENTRYP PFNEGLCREATESTREAMFROMFILEDESCRIPTORKHRPROC) (EGLDisplay dpy, EGLNativeFileDescriptorKHR file_descriptor);
+#endif
+
+#ifndef EGL_KHR_stream_consumer_gltexture
+typedef EGLBoolean (EGLAPIENTRYP PFNEGLSTREAMCONSUMERGLTEXTUREEXTERNALKHRPROC) (EGLDisplay dpy, EGLStreamKHR stream);
+typedef EGLBoolean (EGLAPIENTRYP PFNEGLSTREAMCONSUMERACQUIREKHRPROC) (EGLDisplay dpy, EGLStreamKHR stream);
+typedef EGLBoolean (EGLAPIENTRYP PFNEGLSTREAMCONSUMERRELEASEKHRPROC) (EGLDisplay dpy, EGLStreamKHR stream);
+#endif
+
+#ifndef EGL_EXT_stream_consumer_egloutput
+typedef EGLBoolean (EGLAPIENTRYP PFNEGLSTREAMCONSUMEROUTPUTEXTPROC) (EGLDisplay dpy, EGLStreamKHR stream, EGLOutputLayerEXT layer);
+#endif
+
+#ifndef EGL_EXT_platform_device
+#define EGL_PLATFORM_DEVICE_EXT           0x313F
+#endif
+
+#ifndef EGL_EXT_device_drm
+#define EGL_DRM_DEVICE_FILE_EXT           0x3233
+#endif
+
+#ifndef EGL_EXT_output_drm
+#define EGL_DRM_CRTC_EXT                  0x3234
+#define EGL_DRM_PLANE_EXT                 0x3235
+#endif
+
+QT_BEGIN_NAMESPACE
+
+class QEGLStreamConvenience
+{
+public:
+    QEGLStreamConvenience();
+    void initialize(EGLDisplay dpy);
+
+    PFNEGLGETPLATFORMDISPLAYEXTPROC get_platform_display;
+    PFNEGLQUERYDEVICESEXTPROC query_devices;
+    PFNEGLQUERYDEVICESTRINGEXTPROC query_device_string;
+    PFNEGLCREATESTREAMKHRPROC create_stream;
+    PFNEGLDESTROYSTREAMKHRPROC destroy_stream;
+    PFNEGLSTREAMATTRIBKHRPROC stream_attrib;
+    PFNEGLQUERYSTREAMKHRPROC query_stream;
+    PFNEGLQUERYSTREAMU64KHRPROC query_stream_u64;
+    PFNEGLCREATESTREAMPRODUCERSURFACEKHRPROC create_stream_producer_surface;
+    PFNEGLSTREAMCONSUMEROUTPUTEXTPROC stream_consumer_output;
+    PFNEGLGETOUTPUTLAYERSEXTPROC get_output_layers;
+    PFNEGLGETOUTPUTPORTSEXTPROC get_output_ports;
+    PFNEGLOUTPUTLAYERATTRIBEXTPROC output_layer_attrib;
+    PFNEGLQUERYOUTPUTLAYERATTRIBEXTPROC query_output_layer_attrib;
+    PFNEGLQUERYOUTPUTLAYERSTRINGEXTPROC query_output_layer_string;
+    PFNEGLQUERYOUTPUTPORTATTRIBEXTPROC query_output_port_attrib;
+    PFNEGLQUERYOUTPUTPORTSTRINGEXTPROC query_output_port_string;
+    PFNEGLGETSTREAMFILEDESCRIPTORKHRPROC get_stream_file_descriptor;
+    PFNEGLCREATESTREAMFROMFILEDESCRIPTORKHRPROC create_stream_from_file_descriptor;
+    PFNEGLSTREAMCONSUMERGLTEXTUREEXTERNALKHRPROC stream_consumer_gltexture;
+    PFNEGLSTREAMCONSUMERACQUIREKHRPROC stream_consumer_acquire;
+    PFNEGLSTREAMCONSUMERRELEASEKHRPROC stream_consumer_release;
+
+    bool initialized;
+
+    bool has_egl_platform_device;
+    bool has_egl_device_base;
+    bool has_egl_stream;
+    bool has_egl_stream_producer_eglsurface;
+    bool has_egl_stream_consumer_egloutput;
+    bool has_egl_output_drm;
+    bool has_egl_output_base;
+    bool has_egl_stream_cross_process_fd;
+    bool has_egl_stream_consumer_gltexture;
+};
+
+QT_END_NAMESPACE
+
+#endif