Implement video plane layer

Binding with video source will follow.

Change-Id: Ic14e9757f5b61f4055cbeda47c1bafae0a621abb

include/gui/ISurfaceComposerClient.h

@@ -49,6 +49,7 @@ public:
 
         eFXSurfaceNormal    = 0x00000000,
         eFXSurfaceDim       = 0x00020000,
+        eFXSurfaceVideoPlane= 0x00040000,
         eFXSurfaceMask      = 0x000F0000,
     };
 

services/surfaceflinger/Android.mk

@@ -10,6 +10,7 @@ LOCAL_SRC_FILES:= \
     FrameTracker.cpp \
     Layer.cpp \
     LayerDim.cpp \
+    LayerVideoPlane.cpp \
     MessageQueue.cpp \
     SurfaceFlinger.cpp \
     SurfaceFlingerConsumer.cpp \

services/surfaceflinger/LayerVideoPlane.cpp

@@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdlib.h>
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <utils/Errors.h>
+#include <utils/Log.h>
+
+#include <ui/GraphicBuffer.h>
+
+#include "LayerVideoPlane.h"
+#include "SurfaceFlinger.h"
+#include "DisplayDevice.h"
+#include "RenderEngine/RenderEngine.h"
+
+#define DEBUG_BLUE_SURFACE 1
+
+namespace android {
+// ---------------------------------------------------------------------------
+
+LayerVideoPlane::LayerVideoPlane(SurfaceFlinger* flinger, const sp<Client>& client,
+        const String8& name, uint32_t w, uint32_t h, uint32_t flags)
+    : Layer(flinger, client, name, w, h, flags) {
+}
+
+LayerVideoPlane::~LayerVideoPlane() {
+}
+
+void LayerVideoPlane::onDraw(const sp<const DisplayDevice>& hw,
+        const Region& /* clip */, bool useIdentityTransform) const
+{
+#if DEBUG_BLUE_SURFACE
+    Mesh mesh(Mesh::TRIANGLE_FAN, 4, 2);
+    computeGeometry(hw, mesh, useIdentityTransform);
+    RenderEngine& engine(mFlinger->getRenderEngine());
+    engine.setupFillWithColor(0.0f, 0.0f, 1.0f, 1.0f);
+    engine.drawMesh(mesh);
+#else
+    // TODO
+#endif
+}
+
+bool LayerVideoPlane::isVisible() const {
+    const Layer::State& s(getDrawingState());
+    return !(s.flags & layer_state_t::eLayerHidden);
+}
+
+
+// ---------------------------------------------------------------------------
+
+}; // namespace android

services/surfaceflinger/LayerVideoPlane.h

@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_LAYER_VIDEO_PLANE_H
+#define ANDROID_LAYER_VIDEO_PLANE_H
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include "Layer.h"
+
+// ---------------------------------------------------------------------------
+
+namespace android {
+
+class LayerVideoPlane : public Layer
+{
+public:
+            LayerVideoPlane(SurfaceFlinger* flinger, const sp<Client>& client,
+                    const String8& name, uint32_t w, uint32_t h, uint32_t flags);
+    virtual ~LayerVideoPlane();
+
+    virtual const char* getTypeId() const { return "LayerVideoPlane"; }
+    virtual void onDraw(const sp<const DisplayDevice>& hw, const Region& clip,
+            bool useIdentityTransform) const;
+    virtual bool isFixedSize() const      { return true; }
+    virtual bool isVisible() const;
+};
+
+// ---------------------------------------------------------------------------
+
+}; // namespace android
+
+#endif // ANDROID_LAYER_VIDEO_PLANE_H

services/surfaceflinger/SurfaceFlinger.cpp

@@ -64,6 +64,7 @@
 #include "EventThread.h"
 #include "Layer.h"
 #include "LayerDim.h"
+#include "LayerVideoPlane.h"
 #include "SurfaceFlinger.h"
 
 #include "DisplayHardware/FramebufferSurface.h"
@@ -1937,6 +1938,11 @@ status_t SurfaceFlinger::createLayer(
                     name, w, h, flags,
                     handle, gbp, &layer);
             break;
+        case ISurfaceComposerClient::eFXSurfaceVideoPlane:
+            result = createVideoPlaneLayer(client,
+                    name, w, h, flags,
+                    handle, gbp, &layer);
+            break;
         default:
             result = BAD_VALUE;
             break;
@@ -1994,6 +2000,16 @@ status_t SurfaceFlinger::createDimLayer(const sp<Client>& client,
     return NO_ERROR;
 }
 
+status_t SurfaceFlinger::createVideoPlaneLayer(const sp<Client>& client,
+        const String8& name, uint32_t w, uint32_t h, uint32_t flags,
+        sp<IBinder>* handle, sp<IGraphicBufferProducer>* gbp, sp<Layer>* outLayer)
+{
+    *outLayer = new LayerVideoPlane(this, client, name, w, h, flags);
+    *handle = (*outLayer)->getHandle();
+    *gbp = (*outLayer)->getBufferQueue();
+    return NO_ERROR;
+}
+
 status_t SurfaceFlinger::onLayerRemoved(const sp<Client>& client, const sp<IBinder>& handle)
 {
     // called by the window manager when it wants to remove a Layer

services/surfaceflinger/SurfaceFlinger.h

@@ -280,6 +280,10 @@ private:
             uint32_t w, uint32_t h, uint32_t flags, sp<IBinder>* outHandle,
             sp<IGraphicBufferProducer>* outGbp, sp<Layer>* outLayer);
 
+    status_t createVideoPlaneLayer(const sp<Client>& client, const String8& name,
+            uint32_t w, uint32_t h, uint32_t flags, sp<IBinder>* outHandle,
+            sp<IGraphicBufferProducer>* outGbp, sp<Layer>* outLayer);
+
     // called in response to the window-manager calling
     // ISurfaceComposerClient::destroySurface()
     status_t onLayerRemoved(const sp<Client>& client, const sp<IBinder>& handle);