diff options
Diffstat (limited to 'src/plugins/platforms/wayland/qwaylanddrmsurface.cpp')
| -rw-r--r-- | src/plugins/platforms/wayland/qwaylanddrmsurface.cpp | 271 |
1 files changed, 271 insertions, 0 deletions
diff --git a/src/plugins/platforms/wayland/qwaylanddrmsurface.cpp b/src/plugins/platforms/wayland/qwaylanddrmsurface.cpp new file mode 100644 index 0000000..76c8c33 --- /dev/null +++ b/src/plugins/platforms/wayland/qwaylanddrmsurface.cpp @@ -0,0 +1,271 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the QtOpenVG module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the Technology Preview License Agreement accompanying +** this package. +** +** 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, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ +#include "qwaylanddrmsurface.h" + +#include "qwaylanddisplay.h" +#include "qwaylandwindow.h" +#include "qwaylandscreen.h" + +#include <QtCore/qdebug.h> +#include <QtGui/private/qapplication_p.h> +#include <QtOpenGL/private/qgl_p.h> +#include <QtGui/private/qpaintengine_p.h> + +#include <wayland-client.h> +#include <unistd.h> +#include <fcntl.h> +#include <errno.h> +#include <sys/mman.h> + +QT_BEGIN_NAMESPACE + +/* + * Shared DRM surface for GL based drawing + */ +QWaylandDrmBuffer::QWaylandDrmBuffer(QWaylandDisplay *display, + const QSize &size, QImage::Format format) + : mDisplay(display) + , mSize(size) +{ + struct wl_visual *visual; + EGLint name, stride; + EGLint imageAttribs[] = { + EGL_WIDTH, size.width(), + EGL_HEIGHT, size.height(), + EGL_DRM_BUFFER_FORMAT_MESA, EGL_DRM_BUFFER_FORMAT_ARGB32_MESA, + EGL_DRM_BUFFER_USE_MESA, EGL_DRM_BUFFER_USE_SCANOUT_MESA, + EGL_NONE + }; + + mImage = eglCreateDRMImageMESA(mDisplay->eglDisplay(), imageAttribs); + + glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, mImage); + glGenTextures(1, &mTexture); + glBindTexture(GL_TEXTURE_2D, mTexture); + glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, mImage); + + eglExportDRMImageMESA(mDisplay->eglDisplay(), + mImage, &name, NULL, &stride); + + switch (format) { + case QImage::Format_ARGB32: + visual = display->argbVisual(); + break; + case QImage::Format_ARGB32_Premultiplied: + visual = display->argbPremultipliedVisual(); + break; + default: + qDebug("unsupported buffer format %d requested\n", format); + visual = display->argbVisual(); + break; + } + + mBuffer = display->createDrmBuffer(name, size.width(), size.height(), + stride, visual); +} + +QWaylandDrmBuffer::~QWaylandDrmBuffer(void) +{ + glDeleteTextures(1, &mTexture); + eglDestroyImageKHR(mDisplay->eglDisplay(), mImage); + wl_buffer_destroy(mBuffer); +} + +void QWaylandDrmBuffer::bindToCurrentFbo() +{ + Q_ASSERT(QPlatformGLContext::currentContext()); + glBindTexture(GL_TEXTURE_2D, mTexture); + glFramebufferTexture2D(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0, + GL_TEXTURE_2D, mTexture, 0); + QT_CHECK_GLERROR(); +} + +QWaylandPaintDevice::QWaylandPaintDevice(QWaylandDisplay *display, QWindowSurface *windowSurface, QPlatformGLContext *context) + : QGLPaintDevice() + , mDisplay(display) + , mPlatformGLContext(context) + , mWindowSurface(windowSurface) + , mBufferList(1) + , mCurrentPaintBuffer(0) + , mDepthStencil(0) +{ + for (int i = 0; i < mBufferList.size(); i++) { + mBufferList[i] = 0; + } + + mPlatformGLContext->makeCurrent(); + glGenFramebuffers(1, &m_thisFBO); + glBindFramebuffer(GL_FRAMEBUFFER_EXT, m_thisFBO); + + if (windowSurface->size().isValid()) + resize(windowSurface->size()); +} + +QWaylandPaintDevice::~QWaylandPaintDevice() +{ + for(int i = 0; i < mBufferList.size(); i++) { + delete mBufferList[i]; + } + glDeleteRenderbuffers(1,&mDepthStencil); + glDeleteFramebuffers(1,&m_thisFBO); +} + +QSize QWaylandPaintDevice::size() const +{ + return mSize; +} +QGLContext *QWaylandPaintDevice::context() const +{ + return QGLContext::fromPlatformGLContext(mPlatformGLContext); +} +QPaintEngine *QWaylandPaintDevice::paintEngine() const +{ + return qt_qgl_paint_engine(); +} + +void QWaylandPaintDevice::beginPaint() +{ + QGLPaintDevice::beginPaint(); + currentDrmBuffer()->bindToCurrentFbo(); +} + +bool QWaylandPaintDevice::isFlipped()const +{ + return true; +} + +void QWaylandPaintDevice::resize(const QSize &size) +{ + QImage::Format format = QPlatformScreen::platformScreenForWidget(mWindowSurface->window())->format(); + mPlatformGLContext->makeCurrent(); + mSize = size; + for (int i = 0; i < mBufferList.size(); i++) { + if (!mBufferList.at(i) || mBufferList.at(i)->size() != size) { + delete mBufferList[i]; + mBufferList[i] = new QWaylandDrmBuffer(mDisplay, size, format); + } + } + + glDeleteRenderbuffers(1,&mDepthStencil); + glGenRenderbuffers(1,&mDepthStencil); + glBindRenderbuffer(GL_RENDERBUFFER_EXT,mDepthStencil); + glRenderbufferStorage(GL_RENDERBUFFER_EXT, + GL_DEPTH24_STENCIL8_EXT, size.width(), size.height()); + glFramebufferRenderbuffer(GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT, + GL_RENDERBUFFER_EXT, mDepthStencil); + glFramebufferRenderbuffer(GL_FRAMEBUFFER_EXT, GL_STENCIL_ATTACHMENT_EXT, + GL_RENDERBUFFER_EXT, mDepthStencil); + + GLenum status = glCheckFramebufferStatus(GL_FRAMEBUFFER_EXT); + + switch(status) { + case GL_NO_ERROR: + case GL_FRAMEBUFFER_COMPLETE_EXT: + qDebug() << "fbo ok"; + break; + default: + qDebug() <<"QWaylandDrmBuffer error: "<< status; + break; + } + QT_CHECK_GLERROR(); +} + +QWaylandDrmBuffer *QWaylandPaintDevice::currentDrmBuffer() const +{ + return mBufferList[mCurrentPaintBuffer]; +} +QWaylandDrmBuffer *QWaylandPaintDevice::currentDrmBufferAndSwap() +{ + QWaylandDrmBuffer *currentDrmBuffer = mBufferList[mCurrentPaintBuffer]; + mCurrentPaintBuffer = (mCurrentPaintBuffer +1) % mBufferList.size(); + return currentDrmBuffer; +} + +QWaylandDrmWindowSurface::QWaylandDrmWindowSurface(QWidget *window) + : QWindowSurface(window) + , mDisplay(QWaylandScreen::waylandScreenFromWidget(window)->display()) + , mPaintDevice(new QWaylandPaintDevice(mDisplay, this,window->platformWindow()->glContext())) +{ + +} + +QWaylandDrmWindowSurface::~QWaylandDrmWindowSurface() +{ + delete mPaintDevice; +} + +void QWaylandDrmWindowSurface::beginPaint(const QRegion &) +{ + window()->platformWindow()->glContext()->makeCurrent(); +} + +QPaintDevice *QWaylandDrmWindowSurface::paintDevice() +{ + return mPaintDevice; +} + +void QWaylandDrmWindowSurface::flush(QWidget *widget, const QRegion ®ion, const QPoint &offset) +{ + Q_UNUSED(offset); + QWaylandWindow *ww = (QWaylandWindow *) widget->platformWindow(); + + ww->attach(mPaintDevice->currentDrmBufferAndSwap()); + + QVector<QRect> rects = region.rects(); + for (int i = 0; i < rects.size(); i++) { + QRect r = rects.at(i); + wl_surface_damage(ww->surface(), + r.x(), r.y(), r.width(), r.height()); + } +} + +void QWaylandDrmWindowSurface::resize(const QSize &requestedSize) +{ + QWindowSurface::resize(requestedSize); + QWaylandWindow *ww = (QWaylandWindow *) window()->platformWindow(); + + ww->glContext()->makeCurrent(); + + mPaintDevice->resize(requestedSize); + ww->attach(mPaintDevice->currentDrmBuffer()); +} + +QT_END_NAMESPACE |