1 files changed, 206 insertions, 0 deletions
diff --git a/src/plugins/graphicssystems/meego/qmeegopixmapdata.cpp b/src/plugins/graphicssystems/meego/qmeegopixmapdata.cpp
new file mode 100644
index 0000000..33611dc
--- /dev/null
+++ b/src/plugins/graphicssystems/meego/qmeegopixmapdata.cpp
@@ -0,0 +1,206 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the plugins 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 "qmeegopixmapdata.h"
+#include "qmeegoextensions.h"
+#include <private/qimage_p.h>
+#include <private/qwindowsurface_gl_p.h>
+#include <private/qeglcontext_p.h>
+#include <private/qapplication_p.h>
+#include <private/qgraphicssystem_runtime_p.h>
+
+static EGLint preserved_image_attribs[] = { EGL_IMAGE_PRESERVED_KHR, EGL_TRUE, EGL_NONE };
+
+QHash <void*, QMeeGoImageInfo*> QMeeGoPixmapData::sharedImagesMap;
+
+/* Public */
+
+QMeeGoPixmapData::QMeeGoPixmapData() : QGLPixmapData(QPixmapData::PixmapType)
+{
+}
+
+void QMeeGoPixmapData::fromTexture(GLuint textureId, int w, int h, bool alpha)
+{
+    resize(w, h); 
+    texture()->id = textureId;
+    m_hasAlpha = alpha;
+    softImage = QImage();
+}
+
+QImage QMeeGoPixmapData::toImage() const
+{
+    return softImage;
+}
+
+void QMeeGoPixmapData::fromImage(const QImage &image,
+                                 Qt::ImageConversionFlags flags)
+{
+    void *rawResource = static_cast <void *> (((QImage &) image).data_ptr()->data);
+
+    if (sharedImagesMap.contains(rawResource)) {
+        QMeeGoImageInfo *info = sharedImagesMap.value(rawResource);
+        fromEGLSharedImage(info->handle, image);
+    } else {
+        // This should *never* happen since the graphics system should never
+        // create a QMeeGoPixmapData for an origin that doesn't contain a raster
+        // image we know about. But...
+        qWarning("QMeeGoPixmapData::fromImage called on non-know resource. Falling back...");
+        QGLPixmapData::fromImage(image, flags);
+    }
+}
+
+void QMeeGoPixmapData::fromEGLSharedImage(Qt::HANDLE handle, const QImage &si)
+{
+    if (si.isNull())
+        qFatal("Trying to build pixmap with an empty/null softimage!");
+        
+    QGLShareContextScope ctx(qt_gl_share_widget()->context());
+   
+    QMeeGoExtensions::ensureInitialized();
+ 
+    bool textureIsBound = false;
+    GLuint newTextureId;
+    GLint newWidth, newHeight;
+
+    glGenTextures(1, &newTextureId);
+    glBindTexture(GL_TEXTURE_2D, newTextureId);
+    
+    glFinish();
+    EGLImageKHR image = QEgl::eglCreateImageKHR(QEgl::display(), EGL_NO_CONTEXT, EGL_SHARED_IMAGE_NOK,
+                                                (EGLClientBuffer)handle, preserved_image_attribs);
+
+    if (image != EGL_NO_IMAGE_KHR) {
+        glFinish();
+        glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, image);
+        GLint err = glGetError();
+        if (err == GL_NO_ERROR)
+            textureIsBound = true;
+        
+        QMeeGoExtensions::eglQueryImageNOK(QEgl::display(), image, EGL_WIDTH, &newWidth);
+        QMeeGoExtensions::eglQueryImageNOK(QEgl::display(), image, EGL_HEIGHT, &newHeight);
+          
+        QEgl::eglDestroyImageKHR(QEgl::display(), image);
+        glFinish();
+    }
+        
+    if (textureIsBound) {
+        // FIXME Remove this ugly hasAlphaChannel check when Qt lands the NoOpaqueCheck flag fix
+        // for QGLPixmapData.
+        fromTexture(newTextureId, newWidth, newHeight, 
+                    (si.hasAlphaChannel() && const_cast<QImage &>(si).data_ptr()->checkForAlphaPixels()));
+        softImage = si;
+        QMeeGoPixmapData::registerSharedImage(handle, softImage);
+    } else {
+        qWarning("Failed to create a texture from a shared image!");
+        glDeleteTextures(1, &newTextureId);
+    }
+}
+
+Qt::HANDLE QMeeGoPixmapData::imageToEGLSharedImage(const QImage &image)
+{
+    QGLShareContextScope ctx(qt_gl_share_widget()->context());
+
+    QMeeGoExtensions::ensureInitialized();
+
+    glFinish();
+    QGLPixmapData pixmapData(QPixmapData::PixmapType);
+    pixmapData.fromImage(image, 0);
+    GLuint textureId = pixmapData.bind();
+
+    glFinish();
+    EGLImageKHR eglimage = QEgl::eglCreateImageKHR(QEgl::display(), QEglContext::currentContext(QEgl::OpenGL)->context(),
+                                                                                                EGL_GL_TEXTURE_2D_KHR,
+                                                                                                (EGLClientBuffer) textureId,
+                                                                                                preserved_image_attribs);
+    glFinish();
+
+    if (eglimage) {
+        EGLNativeSharedImageTypeNOK handle = QMeeGoExtensions::eglCreateSharedImageNOK(QEgl::display(), eglimage, NULL);
+        QEgl::eglDestroyImageKHR(QEgl::display(), eglimage);
+        glFinish();
+        return (Qt::HANDLE) handle;
+    } else {
+        qWarning("Failed to create shared image from pixmap/texture!");
+        return 0;
+    }
+}
+
+void QMeeGoPixmapData::updateFromSoftImage()
+{
+    m_dirty = true;
+    m_source = softImage;
+    ensureCreated();
+    
+    if (softImage.width() != w || softImage.height() != h)
+        qWarning("Ooops, looks like softImage changed dimensions since last updated! Corruption ahead?!");
+}
+
+bool QMeeGoPixmapData::destroyEGLSharedImage(Qt::HANDLE h)
+{
+    QGLShareContextScope ctx(qt_gl_share_widget()->context());   
+    QMeeGoExtensions::ensureInitialized();
+
+    QMutableHashIterator <void*, QMeeGoImageInfo*> i(sharedImagesMap);
+    while (i.hasNext()) {
+        i.next();
+        if (i.value()->handle == h)
+            i.remove();
+    }
+
+    return QMeeGoExtensions::eglDestroySharedImageNOK(QEgl::display(), (EGLNativeSharedImageTypeNOK) h);
+}
+
+void QMeeGoPixmapData::registerSharedImage(Qt::HANDLE handle, const QImage &si)
+{
+    void *raw = static_cast <void *> (((QImage) si).data_ptr()->data);
+    QMeeGoImageInfo *info;
+    
+    if (! sharedImagesMap.contains(raw)) {
+        info = new QMeeGoImageInfo;
+        info->handle = handle;
+        info->rawFormat = si.format();
+        sharedImagesMap.insert(raw, info);
+    } else {
+        info = sharedImagesMap.value(raw);
+        if (info->handle != handle || info->rawFormat != si.format())
+            qWarning("Inconsistency detected: overwriting entry in sharedImagesMap but handle/format different");
+    }
+}