diff options
Diffstat (limited to 'src/opengl/qpixmapdata_x11gl_egl.cpp')
| -rw-r--r-- | src/opengl/qpixmapdata_x11gl_egl.cpp | 252 |
1 files changed, 252 insertions, 0 deletions
diff --git a/src/opengl/qpixmapdata_x11gl_egl.cpp b/src/opengl/qpixmapdata_x11gl_egl.cpp new file mode 100644 index 0000000..813e6c8 --- /dev/null +++ b/src/opengl/qpixmapdata_x11gl_egl.cpp @@ -0,0 +1,252 @@ +/**************************************************************************** +** +** 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 QtOpenGL 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 <private/qgl_p.h> +#include <private/qegl_p.h> +#include <private/qeglproperties_p.h> +#include <private/qpaintengineex_opengl2_p.h> + +#include "qpixmapdata_x11gl_p.h" + +QT_BEGIN_NAMESPACE + +extern EGLConfig qt_chooseEGLConfigForPixmap(bool hasAlpha, bool readOnly); // in qgl_x11egl.cpp +extern bool qt_createEGLSurfaceForPixmap(QPixmapData* pmd, bool readOnly); // in qgl_x11egl.cpp + +// On 16bpp systems, RGB & ARGB pixmaps are different bit-depths and therefore need +// different contexts: +static EGLContext qPixmapARGBSharedEglContext = EGL_NO_CONTEXT; +static EGLContext qPixmapRGBSharedEglContext = EGL_NO_CONTEXT; + +bool QX11GLPixmapData::hasX11GLPixmaps() +{ + static bool checkedForX11Pixmaps = false; + static bool haveX11Pixmaps = false; + + if (checkedForX11Pixmaps) + return haveX11Pixmaps; + + checkedForX11Pixmaps = true; + + QX11PixmapData *argbPixmapData = 0; + QX11PixmapData *rgbPixmapData = 0; + do { + if (qgetenv("QT_USE_X11GL_PIXMAPS").isEmpty()) + break; + + // Check we actually have EGL configs which support pixmaps + EGLConfig argbConfig = qt_chooseEGLConfigForPixmap(true, false); + EGLConfig rgbConfig = qt_chooseEGLConfigForPixmap(false, false); + + if (argbConfig == 0 || rgbConfig == 0) + break; + + // Create the shared contexts: + eglBindAPI(EGL_OPENGL_ES_API); + EGLint contextAttribs[] = { +#if defined(QT_OPENGL_ES_2) + EGL_CONTEXT_CLIENT_VERSION, 2, +#endif + EGL_NONE + }; + qPixmapARGBSharedEglContext = eglCreateContext(QEglContext::defaultDisplay(0), + argbConfig, 0, contextAttribs); + + if (argbConfig == rgbConfig) { + // If the configs are the same, we can re-use the same context. + qPixmapRGBSharedEglContext = qPixmapARGBSharedEglContext; + } else { + qPixmapRGBSharedEglContext = eglCreateContext(QEglContext::defaultDisplay(0), + rgbConfig, 0, contextAttribs); + } + + argbPixmapData = new QX11PixmapData(QPixmapData::PixmapType); + argbPixmapData->resize(100, 100); + argbPixmapData->fill(Qt::transparent); // Force ARGB + + if (!qt_createEGLSurfaceForPixmap(argbPixmapData, false)) + break; + + haveX11Pixmaps = eglMakeCurrent(QEglContext::defaultDisplay(0), + (EGLSurface)argbPixmapData->gl_surface, + (EGLSurface)argbPixmapData->gl_surface, + qPixmapARGBSharedEglContext); + if (!haveX11Pixmaps) { + EGLint err = eglGetError(); + qWarning() << "Unable to make pixmap config current:" << err << QEglContext::errorString(err); + break; + } + + // If the ARGB & RGB configs are the same, we don't need to check RGB too + if (haveX11Pixmaps && (argbConfig != rgbConfig)) { + rgbPixmapData = new QX11PixmapData(QPixmapData::PixmapType); + rgbPixmapData->resize(100, 100); + rgbPixmapData->fill(Qt::red); + + // Try to actually create an EGL pixmap surface + if (!qt_createEGLSurfaceForPixmap(rgbPixmapData, false)) + break; + + haveX11Pixmaps = eglMakeCurrent(QEglContext::defaultDisplay(0), + (EGLSurface)rgbPixmapData->gl_surface, + (EGLSurface)rgbPixmapData->gl_surface, + qPixmapRGBSharedEglContext); + if (!haveX11Pixmaps) { + EGLint err = eglGetError(); + qWarning() << "Unable to make pixmap config current:" << err << QEglContext::errorString(err); + break; + } + } + } while (0); + + if (qPixmapARGBSharedEglContext || qPixmapRGBSharedEglContext) { + eglMakeCurrent(QEglContext::defaultDisplay(0), + EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT); + } + + if (argbPixmapData) { + if (argbPixmapData->gl_surface) + QGLContextPrivate::destroyGlSurfaceForPixmap(argbPixmapData); + delete argbPixmapData; + argbPixmapData = 0; + } + if (rgbPixmapData) { + if (rgbPixmapData->gl_surface) + QGLContextPrivate::destroyGlSurfaceForPixmap(rgbPixmapData); + delete rgbPixmapData; + rgbPixmapData = 0; + } + + if (!haveX11Pixmaps) { + // Clean up the context(s) if we can't use X11GL pixmaps + if (qPixmapARGBSharedEglContext != EGL_NO_CONTEXT) + eglDestroyContext(QEglContext::defaultDisplay(0), qPixmapARGBSharedEglContext); + + if (qPixmapRGBSharedEglContext != qPixmapARGBSharedEglContext && + qPixmapRGBSharedEglContext != EGL_NO_CONTEXT) + { + eglDestroyContext(QEglContext::defaultDisplay(0), qPixmapRGBSharedEglContext); + } + qPixmapRGBSharedEglContext = EGL_NO_CONTEXT; + qPixmapARGBSharedEglContext = EGL_NO_CONTEXT; + } + + if (haveX11Pixmaps) + qDebug("QX11GLPixmapData is supported"); + else + qDebug("QX11GLPixmapData is *NOT* being used"); + + return haveX11Pixmaps; +} + +QX11GLPixmapData::QX11GLPixmapData() + : QX11PixmapData(QPixmapData::PixmapType), + ctx(0) +{ +} + +QX11GLPixmapData::~QX11GLPixmapData() +{ +} + +static QGL2PaintEngineEx* qt_gl2_engine_for_pixmaps = 0; + +QPaintEngine* QX11GLPixmapData::paintEngine() const +{ + // We need to create the context before beginPaint - do it here: + if (!ctx) { + ctx = new QGLContext(glFormat()); + if (ctx->d_func()->eglContext == 0) + ctx->d_func()->eglContext = new QEglContext(); + ctx->d_func()->eglContext->openDisplay(0); // ;-) + ctx->d_func()->eglContext->setApi(QEgl::OpenGL); + ctx->d_func()->eglContext->setContext(hasAlphaChannel() ? qPixmapARGBSharedEglContext + : qPixmapRGBSharedEglContext); + } + + if (!qt_gl2_engine_for_pixmaps) + qt_gl2_engine_for_pixmaps = new QGL2PaintEngineEx(); + + // Support multiple painters on multiple pixmaps simultaniously + if (qt_gl2_engine_for_pixmaps->isActive()) { + qWarning("Pixmap paint engine already active"); + QPaintEngine* engine = new QGL2PaintEngineEx(); + engine->setAutoDestruct(true); + return engine; + } + + return qt_gl2_engine_for_pixmaps; +} + +void QX11GLPixmapData::beginPaint() +{ +// qDebug("QX11GLPixmapData::beginPaint()"); + if ((EGLSurface)gl_surface == EGL_NO_SURFACE) { + qt_createEGLSurfaceForPixmap(this, false); + ctx->d_func()->eglSurface = (EGLSurface)gl_surface; + ctx->d_func()->valid = true; // ;-) + } + QGLPaintDevice::beginPaint(); +} + +void QX11GLPixmapData::endPaint() +{ + glFinish(); + QGLPaintDevice::endPaint(); +} + +QGLContext* QX11GLPixmapData::context() const +{ + return ctx; +} + +QSize QX11GLPixmapData::size() const +{ + return QSize(w, h); +} + + +QGLFormat QX11GLPixmapData::glFormat() +{ + return QGLFormat::defaultFormat(); //### +} + +QT_END_NAMESPACE |