replicant-frameworks_native/services/surfaceflinger/LayerDim.cpp
Dan Stoza c701401f8c Allow disabling layer rotation during screenshots
Add the ability to ignore layers' transformation matrices during
screenshot capture, which will allow the window manager to capture
unrotated images for recents during the device rotation animation.

Bug: 11805195
Change-Id: I854d87bc84ca06ef9a054a454af1c080ee66fbb8
2014-02-14 23:10:42 +00:00

65 lines
1.9 KiB
C++

/*
* Copyright (C) 2007 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 "LayerDim.h"
#include "SurfaceFlinger.h"
#include "DisplayDevice.h"
#include "RenderEngine/RenderEngine.h"
namespace android {
// ---------------------------------------------------------------------------
LayerDim::LayerDim(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) {
}
LayerDim::~LayerDim() {
}
void LayerDim::onDraw(const sp<const DisplayDevice>& hw,
const Region& /* clip */, bool useIdentityTransform) const
{
const State& s(getDrawingState());
if (s.alpha>0) {
Mesh mesh(Mesh::TRIANGLE_FAN, 4, 2);
computeGeometry(hw, mesh, useIdentityTransform);
RenderEngine& engine(mFlinger->getRenderEngine());
engine.setupDimLayerBlending(s.alpha);
engine.drawMesh(mesh);
engine.disableBlending();
}
}
bool LayerDim::isVisible() const {
const Layer::State& s(getDrawingState());
return !(s.flags & layer_state_t::eLayerHidden) && s.alpha;
}
// ---------------------------------------------------------------------------
}; // namespace android