Delegated renderer: implement cc::DrawQuad::SOLID_COLOR.

I could currently only test this with --enable-overlay-scrollbars.

Background color quads still need some work in Chromium to be able to
to use this kind of quads, see
<http://code.google.com/p/chromium/issues/detail?id=114658>.

Change-Id: I9c9bdb5c72b91827cfdb7e38e44755c6361a05cf
Reviewed-by: Zeno Albisser <zeno.albisser@digia.com>

2 files changed, 24 insertions, 0 deletions

diff --git a/lib/delegated_frame_node.cpp b/lib/delegated_frame_node.cpp
index 0c50776e0..c770f388d 100644
--- a/lib/delegated_frame_node.cpp
+++ b/lib/delegated_frame_node.cpp
@@ -60,6 +60,7 @@
 #include "cc/output/delegated_frame_data.h"
 #include "cc/quads/draw_quad.h"
 #include "cc/quads/render_pass_draw_quad.h"
+#include "cc/quads/solid_color_draw_quad.h"
 #include "cc/quads/texture_draw_quad.h"
 #include "cc/quads/tile_draw_quad.h"
 #include "cc/quads/yuv_video_draw_quad.h"
@@ -68,6 +69,7 @@
 #include <QSGTexture>
 #include <QtQuick/private/qquickclipnode_p.h>
 #include <QtQuick/private/qquickwindow_p.h>
+#include <QtQuick/private/qsgadaptationlayer_p.h>
 #include <QtQuick/private/qsgcontext_p.h>
 #include <QtQuick/private/qsgrenderer_p.h>
 #include <QtQuick/private/qsgtexture_p.h>
@@ -412,6 +414,21 @@ void DelegatedFrameNode::commit(cc::DelegatedFrameData *frameData, cc::Transfera
                 textureNode->setTexture(texture.data());
                 currentLayerChain->appendChildNode(textureNode);
                 break;
+            } case cc::DrawQuad::SOLID_COLOR: {
+                const cc::SolidColorDrawQuad *scquad = cc::SolidColorDrawQuad::MaterialCast(quad);
+                QSGRenderContext *sgrc = QQuickWindowPrivate::get(m_window)->context;
+                QSGRectangleNode *rectangleNode = sgrc->sceneGraphContext()->createRectangleNode();
+
+                // Qt only supports MSAA and this flag shouldn't be needed.
+                // If we ever want to use QSGRectangleNode::setAntialiasing for this we should
+                // try to see if we can do something similar for tile quads first.
+                Q_UNUSED(scquad->force_anti_aliasing_off);
+
+                rectangleNode->setRect(toQt(quad->rect));
+                rectangleNode->setColor(toQt(scquad->color));
+                rectangleNode->update();
+                currentLayerChain->appendChildNode(rectangleNode);
+                break;
             } case cc::DrawQuad::TILED_CONTENT: {
                 const cc::TileDrawQuad *tquad = cc::TileDrawQuad::MaterialCast(quad);
                 QSharedPointer<MailboxTexture> &texture = m_mailboxTextures[tquad->resource_id] = mailboxTextureCandidates.take(tquad->resource_id);
diff --git a/lib/type_conversion.h b/lib/type_conversion.h
index ce3423e63..0f0a8ab60 100644
--- a/lib/type_conversion.h
+++ b/lib/type_conversion.h
@@ -42,12 +42,14 @@
 #ifndef TYPE_CONVERSION_H
 #define TYPE_CONVERSION_H
 
+#include <QColor>
 #include <QMatrix4x4>
 #include <QRect>
 #include <QString>
 #include <QUrl>
 #include "base/files/file_path.h"
 #include "third_party/skia/include/utils/SkMatrix44.h"
+#include "third_party/skia/include/core/SkColor.h"
 #include "ui/gfx/rect.h"
 #include "url/gurl.h"
 
@@ -96,6 +98,11 @@ inline QSizeF toQt(const gfx::SizeF &size)
     return QSizeF(size.width(), size.height());
 }
 
+inline QColor toQt(const SkColor &c)
+{
+    return QColor(SkColorGetR(c), SkColorGetG(c), SkColorGetB(c), SkColorGetA(c));
+}
+
 inline QMatrix4x4 toQt(const SkMatrix44 &m)
 {
     return QMatrix4x4(