diff options
Diffstat (limited to 'src/plugins/waylandcompositors/wayland-egl/waylandeglintegration.cpp')
| -rw-r--r-- | src/plugins/waylandcompositors/wayland-egl/waylandeglintegration.cpp | 246 |
1 files changed, 246 insertions, 0 deletions
diff --git a/src/plugins/waylandcompositors/wayland-egl/waylandeglintegration.cpp b/src/plugins/waylandcompositors/wayland-egl/waylandeglintegration.cpp new file mode 100644 index 000000000..728776bbe --- /dev/null +++ b/src/plugins/waylandcompositors/wayland-egl/waylandeglintegration.cpp @@ -0,0 +1,246 @@ +/**************************************************************************** +** +** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/legal +** +** This file is part of the Qt Compositor. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names +** of its contributors may be used to endorse or promote products derived +** from this software without specific prior written permission. +** +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "waylandeglintegration.h" + +#include <QtCompositor/wlcompositor.h> +#include <QtCompositor/wlsurface.h> +#include <qpa/qplatformnativeinterface.h> +#include <QtGui/QGuiApplication> +#include <QtGui/QOpenGLContext> +#include <qpa/qplatformscreen.h> +#include <QtGui/QWindow> +#include <QtCore/QPointer> + +#include <QDebug> + +#include <EGL/egl.h> +#include <EGL/eglext.h> + +#include <GLES2/gl2.h> +#include <GLES2/gl2ext.h> + +#ifndef EGL_WL_bind_wayland_display +typedef EGLBoolean (EGLAPIENTRYP PFNEGLBINDWAYLANDDISPLAYWL) (EGLDisplay dpy, struct wl_display *display); +typedef EGLBoolean (EGLAPIENTRYP PFNEGLUNBINDWAYLANDDISPLAYWL) (EGLDisplay dpy, struct wl_display *display); +#endif + +#ifndef EGL_KHR_image +typedef EGLImageKHR (EGLAPIENTRYP PFNEGLCREATEIMAGEKHRPROC) (EGLDisplay dpy, EGLContext ctx, EGLenum target, EGLClientBuffer buffer, const EGLint *attrib_list); +typedef EGLBoolean (EGLAPIENTRYP PFNEGLDESTROYIMAGEKHRPROC) (EGLDisplay dpy, EGLImageKHR image); +#endif + +#ifndef GL_OES_EGL_image +typedef void (GL_APIENTRYP PFNGLEGLIMAGETARGETTEXTURE2DOESPROC) (GLenum target, GLeglImageOES image); +typedef void (GL_APIENTRYP PFNGLEGLIMAGETARGETRENDERBUFFERSTORAGEOESPROC) (GLenum target, GLeglImageOES image); +#endif + +class WaylandEglIntegrationPrivate +{ +public: + WaylandEglIntegrationPrivate() + : egl_display(EGL_NO_DISPLAY) + , valid(false) + , flipperConnected(false) + , egl_bind_wayland_display(0) + , egl_unbind_wayland_display(0) + , egl_create_image(0) + , egl_destroy_image(0) + , gl_egl_image_target_texture_2d(0) + { } + EGLDisplay egl_display; + bool valid; + bool flipperConnected; +#ifdef EGL_WL_request_client_buffer_format + QPointer<WaylandSurface> directRenderSurface; +#endif + PFNEGLBINDWAYLANDDISPLAYWL egl_bind_wayland_display; + PFNEGLUNBINDWAYLANDDISPLAYWL egl_unbind_wayland_display; + + PFNEGLCREATEIMAGEKHRPROC egl_create_image; + PFNEGLDESTROYIMAGEKHRPROC egl_destroy_image; + + PFNGLEGLIMAGETARGETTEXTURE2DOESPROC gl_egl_image_target_texture_2d; + + QPlatformNativeInterface::NativeResourceForContextFunction get_egl_context; +}; + +WaylandEglIntegration::WaylandEglIntegration() + : GraphicsHardwareIntegration() + , d_ptr(new WaylandEglIntegrationPrivate) +{ +} + +void WaylandEglIntegration::initializeHardware(Wayland::Display *waylandDisplay) +{ + Q_D(WaylandEglIntegration); + + QPlatformNativeInterface *nativeInterface = QGuiApplication::platformNativeInterface(); + if (nativeInterface) { + d->egl_display = nativeInterface->nativeResourceForWindow("EglDisplay", m_compositor->window()); + if (d->egl_display) { + const char *extensionString = eglQueryString(d->egl_display, EGL_EXTENSIONS); + if (extensionString && strstr(extensionString, "EGL_WL_bind_wayland_display")) + { + d->get_egl_context = nativeInterface->nativeResourceFunctionForContext("get_egl_context"); + if (!d->get_egl_context) { + qWarning("Failed to retrieve the get_egl_context function"); + } + d->egl_bind_wayland_display = + reinterpret_cast<PFNEGLBINDWAYLANDDISPLAYWL>(eglGetProcAddress("eglBindWaylandDisplayWL")); + d->egl_unbind_wayland_display = + reinterpret_cast<PFNEGLUNBINDWAYLANDDISPLAYWL>(eglGetProcAddress("eglUnbindWaylandDisplayWL")); + d->egl_create_image = + reinterpret_cast<PFNEGLCREATEIMAGEKHRPROC>(eglGetProcAddress("eglCreateImageKHR")); + d->egl_destroy_image = + reinterpret_cast<PFNEGLDESTROYIMAGEKHRPROC>(eglGetProcAddress("eglDestroyImageKHR")); + d->gl_egl_image_target_texture_2d = + reinterpret_cast<PFNGLEGLIMAGETARGETTEXTURE2DOESPROC>(eglGetProcAddress("glEGLImageTargetTexture2DOES")); + + if (d->egl_bind_wayland_display + && d->get_egl_context + && d->egl_unbind_wayland_display + && d->egl_create_image + && d->egl_destroy_image + && d->gl_egl_image_target_texture_2d) { + if (d->egl_bind_wayland_display(d->egl_display, waylandDisplay->handle())) { + d->valid = true; + } + } + } + } + + if (!d->valid) + qWarning("Failed to initialize egl display\n"); + } +} + +GLuint WaylandEglIntegration::createTextureFromBuffer(wl_buffer *buffer, QOpenGLContext *context) +{ + Q_D(WaylandEglIntegration); + if (!d->valid) { + qWarning("createTextureFromBuffer() failed\n"); + return 0; + } + + QPlatformNativeInterface *nativeInterface = QGuiApplication::platformNativeInterface(); + EGLContext egl_context = d->get_egl_context(context); + + EGLImageKHR image = d->egl_create_image(d->egl_display, egl_context, + EGL_WAYLAND_BUFFER_WL, + buffer, NULL); + + GLuint textureId; + glGenTextures(1,&textureId); + + glBindTexture(GL_TEXTURE_2D, textureId); + + d->gl_egl_image_target_texture_2d(GL_TEXTURE_2D, image); + + glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); + glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); + glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); + glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); + + d->egl_destroy_image(d->egl_display, image); + + return textureId; +} + +bool WaylandEglIntegration::isYInverted(struct wl_buffer *buffer) const +{ +#ifdef EGL_WL_request_client_buffer_format + return eglGetBufferYInvertedWL(buffer); +#else + return GraphicsHardwareIntegration::isYInverted(buffer); +#endif +} + + +bool WaylandEglIntegration::setDirectRenderSurface(WaylandSurface *surface) +{ + Q_D(WaylandEglIntegration); + + QPlatformScreen *screen = QPlatformScreen::platformScreenForWindow(m_compositor->window()); + QPlatformScreenPageFlipper *flipper = screen ? screen->pageFlipper() : 0; + if (flipper && !d->flipperConnected) { + QObject::connect(flipper, SIGNAL(bufferReleased(void*)), m_compositor->handle(), SLOT(releaseBuffer(void*))); + d->flipperConnected = true; + } +#ifdef EGL_WL_request_client_buffer_format + int buffer_format = surface ? EGL_SCANOUT_FORMAT_WL : EGL_RENDER_FORMAT_WL; + struct wl_client *client = 0; + if (surface) { + client = surface->handle()->base()->resource.client; + } else { + WaylandSurface *oldSurface = d->directRenderSurface.data(); + if (oldSurface) + client = oldSurface->handle()->base()->resource.client; + } + if (client) + eglRequestClientBufferFormatWL(d->egl_display, client, buffer_format); + d->directRenderSurface = surface; +#else + Q_UNUSED(surface); +#endif + return flipper; +} + +void *WaylandEglIntegration::lockNativeBuffer(struct wl_buffer *buffer, QOpenGLContext *context) const +{ + Q_D(const WaylandEglIntegration); + + QPlatformNativeInterface *nativeInterface = QGuiApplication::platformNativeInterface(); + EGLContext egl_context = d->get_egl_context(context); + + EGLImageKHR image = d->egl_create_image(d->egl_display, egl_context, + EGL_WAYLAND_BUFFER_WL, + buffer, NULL); + return image; +} + +void WaylandEglIntegration::unlockNativeBuffer(void *native_buffer, QOpenGLContext *) const +{ + Q_D(const WaylandEglIntegration); + EGLImageKHR image = static_cast<EGLImageKHR>(native_buffer); + + d->egl_destroy_image(d->egl_display, image); +} + |