add a layerStack attribute to Layers.
this attribute can be set through a regular transaction using SurfaceComposerClient (just like any other attribute, eg: position or size) Change-Id: I701a47c677ea6442ca713728a93335328cd2b172
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8b33f03232
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8785578391
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@ -67,6 +67,7 @@ public:
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eMatrixChanged = 0x00000010,
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eTransparentRegionChanged = 0x00000020,
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eVisibilityChanged = 0x00000040,
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eLayerStackChanged = 0x00000080,
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eCropChanged = 0x00000100,
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};
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@ -119,6 +119,7 @@ public:
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status_t setPosition(SurfaceID id, float x, float y);
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status_t setSize(SurfaceID id, uint32_t w, uint32_t h);
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status_t setCrop(SurfaceID id, const Rect& crop);
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status_t setLayerStack(SurfaceID id, uint32_t layerStack);
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status_t destroySurface(SurfaceID sid);
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private:
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@ -35,7 +35,7 @@ struct layer_state_t {
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layer_state_t()
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: surface(0), what(0),
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x(0), y(0), z(0), w(0), h(0),
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x(0), y(0), z(0), w(0), h(0), layerStack(0),
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alpha(0), flags(0), mask(0),
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reserved(0)
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{
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@ -60,6 +60,7 @@ struct layer_state_t {
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uint32_t z;
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uint32_t w;
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uint32_t h;
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uint32_t layerStack;
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float alpha;
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uint8_t flags;
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uint8_t mask;
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@ -124,6 +124,8 @@ public:
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status_t setOrientation(int orientation);
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status_t setCrop(const sp<SurfaceComposerClient>& client, SurfaceID id,
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const Rect& crop);
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status_t setLayerStack(const sp<SurfaceComposerClient>& client,
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SurfaceID id, uint32_t layerStack);
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static void closeGlobalTransaction(bool synchronous) {
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Composer::getInstance().closeGlobalTransactionImpl(synchronous);
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@ -255,6 +257,17 @@ status_t Composer::setAlpha(const sp<SurfaceComposerClient>& client,
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return NO_ERROR;
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}
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status_t Composer::setLayerStack(const sp<SurfaceComposerClient>& client,
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SurfaceID id, uint32_t layerStack) {
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Mutex::Autolock _l(mLock);
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layer_state_t* s = getLayerStateLocked(client, id);
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if (!s)
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return BAD_INDEX;
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s->what |= ISurfaceComposer::eLayerStackChanged;
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s->layerStack = layerStack;
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return NO_ERROR;
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}
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status_t Composer::setMatrix(const sp<SurfaceComposerClient>& client,
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SurfaceID id, float dsdx, float dtdx,
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float dsdy, float dtdy) {
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@ -443,6 +456,10 @@ status_t SurfaceComposerClient::setAlpha(SurfaceID id, float alpha) {
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return getComposer().setAlpha(this, id, alpha);
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}
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status_t SurfaceComposerClient::setLayerStack(SurfaceID id, uint32_t layerStack) {
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return getComposer().setLayerStack(this, id, layerStack);
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}
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status_t SurfaceComposerClient::setMatrix(SurfaceID id, float dsdx, float dtdx,
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float dsdy, float dtdy) {
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return getComposer().setMatrix(this, id, dsdx, dtdx, dsdy, dtdy);
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@ -77,6 +77,7 @@ void LayerBase::initStates(uint32_t w, uint32_t h, uint32_t flags)
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mCurrentState.active.crop.makeInvalid();
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mCurrentState.z = 0;
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mCurrentState.alpha = 0xFF;
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mCurrentState.layerStack = 0;
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mCurrentState.flags = layerFlags;
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mCurrentState.sequence = 0;
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mCurrentState.transform.set(0, 0);
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@ -169,6 +170,15 @@ bool LayerBase::setCrop(const Rect& crop) {
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return true;
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}
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bool LayerBase::setLayerStack(uint32_t layerStack) {
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if (mCurrentState.layerStack == layerStack)
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return false;
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mCurrentState.sequence++;
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mCurrentState.layerStack = layerStack;
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requestTransaction();
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return true;
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}
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void LayerBase::setVisibleRegion(const Region& visibleRegion) {
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// always called from main thread
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this->visibleRegion = visibleRegion;
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@ -79,6 +79,7 @@ public:
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Geometry active;
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Geometry requested;
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uint32_t z;
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uint32_t layerStack;
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uint8_t alpha;
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uint8_t flags;
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uint8_t reserved[2];
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@ -113,7 +114,8 @@ public:
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bool setTransparentRegionHint(const Region& opaque);
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bool setFlags(uint8_t flags, uint8_t mask);
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bool setCrop(const Rect& crop);
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bool setLayerStack(uint32_t layerStack);
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void commitTransaction();
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bool requestTransaction();
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void forceVisibilityTransaction();
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@ -1572,6 +1572,10 @@ uint32_t SurfaceFlinger::setClientStateLocked(
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if (layer->setCrop(s.crop))
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flags |= eTraversalNeeded;
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}
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if (what & eLayerStackChanged) {
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if (layer->setLayerStack(s.layerStack))
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flags |= eTraversalNeeded;
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}
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}
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return flags;
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}
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