void Layer::setAcquireFence(const sp<const DisplayDevice>& hw,
HWComposer::HWCLayerInterface& layer) {
int fenceFd = -1;
// TODO: there is a possible optimization here: we only need to set the
// acquire fence the first time a new buffer is acquired on EACH display.
#ifdef QCOM_HARDWARE
if (layer.getCompositionType() == HWC_OVERLAY ||
layer.getCompositionType() == HWC_BLIT) {
#else
if (layer.getCompositionType() == HWC_OVERLAY) {
#endif
sp<Fence> fence = mSurfaceFlingerConsumer->getCurrentFence();
if (fence->isValid()) {
fenceFd = fence->dup();
if (fenceFd == -1) {
ALOGW("failed to dup layer fence, skipping sync: %d", errno);
}
}
}
layer.setAcquireFenceFd(fenceFd);
}
// ---------------------------------------------------------------------------
// drawing...
// ---------------------------------------------------------------------------
void Layer::draw(const sp<const DisplayDevice>& hw, const Region& clip) const {
onDraw(hw, clip);
}
void LayerBase::setPerFrameData(const sp<const DisplayDevice>& hw,
HWComposer::HWCLayerInterface& layer) {
layer.setPerFrameDefaultState();
// we have to set the visible region on every frame because
// we currently free it during onLayerDisplayed(), which is called
// after HWComposer::commit() -- every frame.
const Transform& tr = hw->getTransform();
layer.setVisibleRegionScreen(tr.transform(visibleRegion));
}
void Layer::setPerFrameData(const sp<const DisplayDevice>& hw,
HWComposer::HWCLayerInterface& layer) {
LayerBaseClient::setPerFrameData(hw, layer);
// NOTE: buffer can be NULL if the client never drew into this
// layer yet, or if we ran out of memory
layer.setBuffer(mActiveBuffer);
// [MTK] {{{
layer.setConnectedApi(mSurfaceTexture->getConnectedApi());
layer.setDirty((mBufferDirty || mBufferRefCount <= 1 || contentDirty));
// [MTK] }}}
}
void Layer::setPerFrameData(const sp<const DisplayDevice>& hw,
HWComposer::HWCLayerInterface& layer) {
// we have to set the visible region on every frame because
// we currently free it during onLayerDisplayed(), which is called
// after HWComposer::commit() -- every frame.
// Apply this display's projection's viewport to the visible region
// before giving it to the HWC HAL.
const Transform& tr = hw->getTransform();
Region visible = tr.transform(visibleRegion.intersect(hw->getViewport()));
layer.setVisibleRegionScreen(visible);
// NOTE: buffer can be NULL if the client never drew into this
// layer yet, or if we ran out of memory
layer.setBuffer(mActiveBuffer);
}
void Layer::setPerFrameData(const sp<const DisplayDevice>& hw,
HWComposer::HWCLayerInterface& layer) {
LayerBaseClient::setPerFrameData(hw, layer);
// NOTE: buffer can be NULL if the client never drew into this
// layer yet, or if we ran out of memory
layer.setBuffer(mActiveBuffer);
}
void LayerBase::setGeometry(
const sp<const DisplayDevice>& hw,
HWComposer::HWCLayerInterface& layer)
{
layer.setDefaultState();
// this gives us only the "orientation" component of the transform
const State& s(drawingState());
const uint32_t finalTransform = s.transform.getOrientation();
// we can only handle simple transformation
if (finalTransform & Transform::ROT_INVALID) {
layer.setTransform(0);
} else {
layer.setTransform(finalTransform);
}
if (!isOpaque()) {
layer.setBlending(mPremultipliedAlpha ?
HWC_BLENDING_PREMULT :
HWC_BLENDING_COVERAGE);
}
const Transform& tr = hw->getTransform();
Rect transformedBounds(computeBounds());
transformedBounds = tr.transform(transformedBounds);
// scaling is already applied in transformedBounds
layer.setFrame(transformedBounds);
layer.setCrop(transformedBounds.getBounds());
layer.setFormat(0);
}
void Layer::setAcquireFence(const sp<const DisplayDevice>& hw,
HWComposer::HWCLayerInterface& layer) {
int fenceFd = -1;
// TODO: there is a possible optimization here: we only need to set the
// acquire fence the first time a new buffer is acquired on EACH display.
if (layer.getCompositionType() == HWC_OVERLAY) {
sp<Fence> fence = mSurfaceTexture->getCurrentFence();
if (fence.get()) {
fenceFd = fence->dup();
if (fenceFd == -1) {
ALOGW("failed to dup layer fence, skipping sync: %d", errno);
}
}
}
layer.setAcquireFenceFd(fenceFd);
}
void Layer::setGeometry(
const sp<const DisplayDevice>& hw,
HWComposer::HWCLayerInterface& layer)
{
LayerBaseClient::setGeometry(hw, layer);
// enable this layer
layer.setSkip(false);
// we can't do alpha-fade with the hwc HAL
const State& s(drawingState());
if (s.alpha < 0xFF) {
layer.setSkip(true);
}
if (isSecure() && !hw->isSecure()) {
layer.setSkip(true);
}
/*
* Transformations are applied in this order:
* 1) buffer orientation/flip/mirror
* 2) state transformation (window manager)
* 3) layer orientation (screen orientation)
* (NOTE: the matrices are multiplied in reverse order)
*/
const Transform bufferOrientation(mCurrentTransform);
const Transform tr(hw->getTransform() * s.transform * bufferOrientation);
// this gives us only the "orientation" component of the transform
const uint32_t finalTransform = tr.getOrientation();
// we can only handle simple transformation
if (finalTransform & Transform::ROT_INVALID) {
layer.setSkip(true);
} else {
layer.setTransform(finalTransform);
}
layer.setCrop(computeBufferCrop());
}
void LayerBase::setAcquireFence(const sp<const DisplayDevice>& hw,
HWComposer::HWCLayerInterface& layer) {
layer.setAcquireFenceFd(-1);
}
void LayerBase::setLayerName(const sp<const DisplayDevice>& hw,
HWComposer::HWCLayerInterface& layer, String8 layerName) {
// set hardware layer name
layer.setLayerName(layerName);
}
void LayerScreenshot::setPerFrameData(const sp<const DisplayDevice>& hw,
HWComposer::HWCLayerInterface& layer) {
LayerBaseClient::setPerFrameData(hw, layer);
layer.setBuffer(NULL);
}
void Layer::setGeometry(
const sp<const DisplayDevice>& hw,
HWComposer::HWCLayerInterface& layer)
{
layer.setDefaultState();
// enable this layer
layer.setSkip(false);
if (isSecure() && !hw->isSecure()) {
layer.setSkip(true);
}
// this gives us only the "orientation" component of the transform
const State& s(getDrawingState());
if (!isOpaque() || s.alpha != 0xFF) {
layer.setBlending(mPremultipliedAlpha ?
HWC_BLENDING_PREMULT :
HWC_BLENDING_COVERAGE);
}
// apply the layer's transform, followed by the display's global transform
// here we're guaranteed that the layer's transform preserves rects
Rect frame(s.transform.transform(computeBounds()));
frame.intersect(hw->getViewport(), &frame);
const Transform& tr(hw->getTransform());
layer.setFrame(tr.transform(frame));
#ifdef QCOM_BSP
// set dest_rect to display width and height, if external_only flag
// for the layer is enabled or if its yuvLayer in extended mode.
uint32_t x = 0, y = 0;
uint32_t w = hw->getWidth();
uint32_t h = hw->getHeight();
bool extendedMode = SurfaceFlinger::isExtendedMode();
if(isExtOnly()) {
// Position: fullscreen for ext_only
Rect r(0, 0, w, h);
layer.setFrame(r);
} else if(hw->getDisplayType() > 0 && (extendedMode && isYuvLayer())) {
// Need to position the video full screen on external with aspect ratio
Rect r = getAspectRatio(hw, s.active.w, s.active.h);
layer.setFrame(r);
}
#endif
layer.setCrop(computeCrop(hw));
layer.setPlaneAlpha(s.alpha);
/*
* Transformations are applied in this order:
* 1) buffer orientation/flip/mirror
* 2) state transformation (window manager)
* 3) layer orientation (screen orientation)
* (NOTE: the matrices are multiplied in reverse order)
*/
const Transform bufferOrientation(mCurrentTransform);
Transform transform(tr * s.transform * bufferOrientation);
if (mSurfaceFlingerConsumer->getTransformToDisplayInverse()) {
/*
* the code below applies the display's inverse transform to the buffer
*/
uint32_t invTransform = hw->getOrientationTransform();
// calculate the inverse transform
if (invTransform & NATIVE_WINDOW_TRANSFORM_ROT_90) {
invTransform ^= NATIVE_WINDOW_TRANSFORM_FLIP_V |
NATIVE_WINDOW_TRANSFORM_FLIP_H;
}
// and apply to the current transform
transform = transform * Transform(invTransform);
}
// this gives us only the "orientation" component of the transform
const uint32_t orientation = transform.getOrientation();
if (orientation & Transform::ROT_INVALID) {
// we can only handle simple transformation
layer.setSkip(true);
} else {
layer.setTransform(orientation);
}
}