1 files changed, 19 insertions, 62 deletions

diff --git a/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp b/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp
index e24539b..e028e63 100644
--- a/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp
+++ b/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp
@@ -710,7 +710,7 @@ void QGL2PaintEngineEx::beginNativePainting()
         {  mtx.dx(),  mtx.dy(),     0, mtx.m33() }
     };
 
-    const QSize sz = d->drawable.size();
+    const QSize sz = d->device->size();
 
     glMatrixMode(GL_PROJECTION);
     glLoadIdentity();
@@ -1308,21 +1308,20 @@ bool QGL2PaintEngineEx::begin(QPaintDevice *pdev)
     Q_D(QGL2PaintEngineEx);
 
 //     qDebug("QGL2PaintEngineEx::begin()");
-    d->drawable.setDevice(pdev);
-    d->ctx = d->drawable.context();
-
-    if (d->ctx->d_ptr->active_engine) {
-        QGL2PaintEngineEx *engine = static_cast<QGL2PaintEngineEx *>(d->ctx->d_ptr->active_engine);
-        QGL2PaintEngineExPrivate *p = static_cast<QGL2PaintEngineExPrivate *>(engine->d_ptr.data());
-        p->transferMode(BrushDrawingMode);
-        p->drawable.doneCurrent();
-    }
+    if (pdev->devType() == QInternal::OpenGL)
+        d->device = static_cast<QGLPaintDevice*>(pdev);
+    else
+        d->device = QGLPaintDevice::getDevice(pdev);
+
+    if (!d->device)
+        return false;
+
+    d->ctx = d->device->context();
 
     d->ctx->d_ptr->active_engine = this;
     d->last_created_state = 0;
 
-    d->drawable.makeCurrent();
-    QSize sz = d->drawable.size();
+    QSize sz = d->device->size();
     d->width = sz.width();
     d->height = sz.height();
     d->mode = BrushDrawingMode;
@@ -1333,8 +1332,6 @@ bool QGL2PaintEngineEx::begin(QPaintDevice *pdev)
 
     d->shaderManager = new QGLEngineShaderManager(d->ctx);
 
-    glViewport(0, 0, d->width, d->height);
-
     d->brushTextureDirty = true;
     d->brushUniformsDirty = true;
     d->matrixDirty = true;
@@ -1343,10 +1340,12 @@ bool QGL2PaintEngineEx::begin(QPaintDevice *pdev)
     d->simpleShaderDepthUniformDirty = true;
     d->depthUniformDirty = true;
     d->opacityUniformDirty = true;
-    d->needsSync = false;
-
+    d->needsSync = true;
     d->use_system_clip = !systemClip().isEmpty();
 
+
+    d->device->beginPaint();
+
     if (!d->inRenderText) {
         glDisable(GL_DEPTH_TEST);
         glDisable(GL_SCISSOR_TEST);
@@ -1358,30 +1357,6 @@ bool QGL2PaintEngineEx::begin(QPaintDevice *pdev)
     glDisable(GL_MULTISAMPLE);
 #endif
 
-    QGLPixmapData *source = d->drawable.copyOnBegin();
-    if (d->drawable.context()->d_func()->clear_on_painter_begin && d->drawable.autoFillBackground()) {
-        if (d->drawable.hasTransparentBackground())
-            glClearColor(0.0, 0.0, 0.0, 0.0);
-        else {
-            const QColor &c = d->drawable.backgroundColor();
-            float alpha = c.alphaF();
-            glClearColor(c.redF() * alpha, c.greenF() * alpha, c.blueF() * alpha, alpha);
-        }
-        glClear(GL_COLOR_BUFFER_BIT);
-    } else if (source) {
-        QGLContext *ctx = d->ctx;
-
-        d->transferMode(ImageDrawingMode);
-
-        glActiveTexture(GL_TEXTURE0 + QT_IMAGE_TEXTURE_UNIT);
-        source->bind(false);
-
-        QRect rect(0, 0, source->width(), source->height());
-        d->updateTextureFilter(GL_TEXTURE_2D, GL_REPEAT, false);
-        d->drawTexture(QRectF(rect), QRectF(rect), rect.size(), true);
-    }
-
-    d->systemStateChanged();
     return true;
 }
 
@@ -1389,19 +1364,11 @@ bool QGL2PaintEngineEx::end()
 {
     Q_D(QGL2PaintEngineEx);
     QGLContext *ctx = d->ctx;
-    if (ctx->d_ptr->active_engine != this) {
-        QGL2PaintEngineEx *engine = static_cast<QGL2PaintEngineEx *>(ctx->d_ptr->active_engine);
-        if (engine && engine->isActive()) {
-            QGL2PaintEngineExPrivate *p = static_cast<QGL2PaintEngineExPrivate *>(engine->d_ptr.data());
-            p->transferMode(BrushDrawingMode);
-            p->drawable.doneCurrent();
-        }
-        d->drawable.makeCurrent();
-    }
 
     glUseProgram(0);
     d->transferMode(BrushDrawingMode);
-    d->drawable.swapBuffers();
+    d->device->endPaint();
+
 #if defined(Q_WS_X11)
     // On some (probably all) drivers, deleting an X pixmap which has been bound to a texture
     // before calling glFinish/swapBuffers renders garbage. Presumably this is because X deletes
@@ -1410,7 +1377,6 @@ bool QGL2PaintEngineEx::end()
     // them here, after swapBuffers, where they can be safely deleted.
     ctx->d_func()->boundPixmaps.clear();
 #endif
-    d->drawable.doneCurrent();
     d->ctx->d_ptr->active_engine = 0;
 
     d->resetGLState();
@@ -1427,21 +1393,12 @@ void QGL2PaintEngineEx::ensureActive()
     QGLContext *ctx = d->ctx;
 
     if (isActive() && ctx->d_ptr->active_engine != this) {
-        QGL2PaintEngineEx *engine = static_cast<QGL2PaintEngineEx *>(ctx->d_ptr->active_engine);
-        if (engine && engine->isActive()) {
-            QGL2PaintEngineExPrivate *p = static_cast<QGL2PaintEngineExPrivate *>(engine->d_ptr.data());
-            p->transferMode(BrushDrawingMode);
-            p->drawable.doneCurrent();
-        }
-        d->drawable.context()->makeCurrent();
-        d->drawable.makeCurrent();
-
         ctx->d_ptr->active_engine = this;
         d->needsSync = true;
-    } else {
-        d->drawable.context()->makeCurrent();
     }
 
+    d->device->ensureActiveTarget();
+
     if (d->needsSync) {
         glViewport(0, 0, d->width, d->height);
         glDepthMask(false);