Support to custom the render target on the software renderer

Add QQuickRenderTarget::fromPaintDevice, aollow to get a
QQuickRendererTarget from the QPaintDevice object.

[ChangeLog][QtQuick] Added QQuickRenderTarget::fromPaintDevice,
Allowed to set the render target of QQuickWindow on the software
renderer.

Task-number: QTBUG-94075
Change-Id: I4946c25d2a6315cd8f9c12a7ac7ac4cf71d95361
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>

1 files changed, 6 insertions, 7 deletions

diff --git a/src/quick/scenegraph/qsgcontext.cpp b/src/quick/scenegraph/qsgcontext.cpp
index a5e0e5e035..7a1027b806 100644
--- a/src/quick/scenegraph/qsgcontext.cpp
+++ b/src/quick/scenegraph/qsgcontext.cpp
@@ -39,6 +39,7 @@
 
 #include <QtQuick/private/qsgcontext_p.h>
 #include <QtQuick/private/qsgtexture_p.h>
+#include <QtQuick/private/qsgrenderer_p.h>
 #include <QtQuick/private/qquickpixmapcache_p.h>
 #include <QtQuick/private/qsgadaptationlayer_p.h>
 
@@ -370,12 +371,12 @@ void QSGRenderContext::prepareSync(qreal devicePixelRatio,
     Q_UNUSED(config);
 }
 
-void QSGRenderContext::beginNextFrame(QSGRenderer *renderer,
+void QSGRenderContext::beginNextFrame(QSGRenderer *renderer, const QSGRenderTarget &renderTarget,
                                       RenderPassCallback mainPassRecordingStart,
                                       RenderPassCallback mainPassRecordingEnd,
                                       void *callbackUserData)
 {
-    Q_UNUSED(renderer);
+    renderer->setRenderTarget(renderTarget);
     Q_UNUSED(mainPassRecordingStart);
     Q_UNUSED(mainPassRecordingEnd);
     Q_UNUSED(callbackUserData);
@@ -386,15 +387,13 @@ void QSGRenderContext::endNextFrame(QSGRenderer *renderer)
     Q_UNUSED(renderer);
 }
 
-void QSGRenderContext::beginNextRhiFrame(QSGRenderer *renderer,
-                                         QRhiRenderTarget *rt, QRhiRenderPassDescriptor *rp, QRhiCommandBuffer *cb,
+void QSGRenderContext::beginNextRhiFrame(QSGRenderer *renderer, const QSGRenderTarget &renderTarget,
+                                         QRhiCommandBuffer *cb,
                                          RenderPassCallback mainPassRecordingStart,
                                          RenderPassCallback mainPassRecordingEnd,
                                          void *callbackUserData)
 {
-    Q_UNUSED(renderer);
-    Q_UNUSED(rt);
-    Q_UNUSED(rp);
+    renderer->setRenderTarget(renderTarget);
     Q_UNUSED(cb);
     Q_UNUSED(mainPassRecordingStart);
     Q_UNUSED(mainPassRecordingEnd);