| /* |
| * Copyright 2019 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 <android-base/stringprintf.h> |
| #include <compositionengine/DisplayColorProfile.h> |
| #include <compositionengine/LayerFE.h> |
| #include <compositionengine/LayerFECompositionState.h> |
| #include <compositionengine/Output.h> |
| #include <compositionengine/impl/OutputCompositionState.h> |
| #include <compositionengine/impl/OutputLayer.h> |
| #include <compositionengine/impl/OutputLayerCompositionState.h> |
| |
| // TODO(b/129481165): remove the #pragma below and fix conversion issues |
| #pragma clang diagnostic push |
| #pragma clang diagnostic ignored "-Wconversion" |
| |
| #include "DisplayHardware/HWComposer.h" |
| |
| // TODO(b/129481165): remove the #pragma below and fix conversion issues |
| #pragma clang diagnostic pop // ignored "-Wconversion" |
| |
| namespace android::compositionengine { |
| |
| OutputLayer::~OutputLayer() = default; |
| |
| namespace impl { |
| |
| namespace { |
| |
| FloatRect reduce(const FloatRect& win, const Region& exclude) { |
| if (CC_LIKELY(exclude.isEmpty())) { |
| return win; |
| } |
| // Convert through Rect (by rounding) for lack of FloatRegion |
| return Region(Rect{win}).subtract(exclude).getBounds().toFloatRect(); |
| } |
| |
| } // namespace |
| |
| std::unique_ptr<OutputLayer> createOutputLayer(const compositionengine::Output& output, |
| const sp<compositionengine::LayerFE>& layerFE) { |
| return createOutputLayerTemplated<OutputLayer>(output, layerFE); |
| } |
| |
| OutputLayer::~OutputLayer() = default; |
| |
| void OutputLayer::setHwcLayer(std::shared_ptr<HWC2::Layer> hwcLayer) { |
| auto& state = editState(); |
| if (hwcLayer) { |
| state.hwc.emplace(std::move(hwcLayer)); |
| } else { |
| state.hwc.reset(); |
| } |
| } |
| |
| Rect OutputLayer::calculateInitialCrop() const { |
| const auto& layerState = *getLayerFE().getCompositionState(); |
| |
| // apply the projection's clipping to the window crop in |
| // layerstack space, and convert-back to layer space. |
| // if there are no window scaling involved, this operation will map to full |
| // pixels in the buffer. |
| |
| FloatRect activeCropFloat = |
| reduce(layerState.geomLayerBounds, layerState.transparentRegionHint); |
| |
| const Rect& viewport = getOutput().getState().layerStackSpace.content; |
| const ui::Transform& layerTransform = layerState.geomLayerTransform; |
| const ui::Transform& inverseLayerTransform = layerState.geomInverseLayerTransform; |
| // Transform to screen space. |
| activeCropFloat = layerTransform.transform(activeCropFloat); |
| activeCropFloat = activeCropFloat.intersect(viewport.toFloatRect()); |
| // Back to layer space to work with the content crop. |
| activeCropFloat = inverseLayerTransform.transform(activeCropFloat); |
| |
| // This needs to be here as transform.transform(Rect) computes the |
| // transformed rect and then takes the bounding box of the result before |
| // returning. This means |
| // transform.inverse().transform(transform.transform(Rect)) != Rect |
| // in which case we need to make sure the final rect is clipped to the |
| // display bounds. |
| Rect activeCrop{activeCropFloat}; |
| if (!activeCrop.intersect(layerState.geomBufferSize, &activeCrop)) { |
| activeCrop.clear(); |
| } |
| return activeCrop; |
| } |
| |
| FloatRect OutputLayer::calculateOutputSourceCrop() const { |
| const auto& layerState = *getLayerFE().getCompositionState(); |
| const auto& outputState = getOutput().getState(); |
| |
| if (!layerState.geomUsesSourceCrop) { |
| return {}; |
| } |
| |
| // the content crop is the area of the content that gets scaled to the |
| // layer's size. This is in buffer space. |
| FloatRect crop = layerState.geomContentCrop.toFloatRect(); |
| |
| // In addition there is a WM-specified crop we pull from our drawing state. |
| Rect activeCrop = calculateInitialCrop(); |
| const Rect& bufferSize = layerState.geomBufferSize; |
| |
| int winWidth = bufferSize.getWidth(); |
| int winHeight = bufferSize.getHeight(); |
| |
| // The bufferSize for buffer state layers can be unbounded ([0, 0, -1, -1]) |
| // if display frame hasn't been set and the parent is an unbounded layer. |
| if (winWidth < 0 && winHeight < 0) { |
| return crop; |
| } |
| |
| // Transform the window crop to match the buffer coordinate system, |
| // which means using the inverse of the current transform set on the |
| // SurfaceFlingerConsumer. |
| uint32_t invTransform = layerState.geomBufferTransform; |
| if (layerState.geomBufferUsesDisplayInverseTransform) { |
| /* |
| * the code below applies the primary display's inverse transform to the |
| * buffer |
| */ |
| uint32_t invTransformOrient = outputState.orientation; |
| // calculate the inverse transform |
| if (invTransformOrient & HAL_TRANSFORM_ROT_90) { |
| invTransformOrient ^= HAL_TRANSFORM_FLIP_V | HAL_TRANSFORM_FLIP_H; |
| } |
| // and apply to the current transform |
| invTransform = |
| (ui::Transform(invTransformOrient) * ui::Transform(invTransform)).getOrientation(); |
| } |
| |
| if (invTransform & HAL_TRANSFORM_ROT_90) { |
| // If the activeCrop has been rotate the ends are rotated but not |
| // the space itself so when transforming ends back we can't rely on |
| // a modification of the axes of rotation. To account for this we |
| // need to reorient the inverse rotation in terms of the current |
| // axes of rotation. |
| bool isHFlipped = (invTransform & HAL_TRANSFORM_FLIP_H) != 0; |
| bool isVFlipped = (invTransform & HAL_TRANSFORM_FLIP_V) != 0; |
| if (isHFlipped == isVFlipped) { |
| invTransform ^= HAL_TRANSFORM_FLIP_V | HAL_TRANSFORM_FLIP_H; |
| } |
| std::swap(winWidth, winHeight); |
| } |
| const Rect winCrop = |
| activeCrop.transform(invTransform, bufferSize.getWidth(), bufferSize.getHeight()); |
| |
| // below, crop is intersected with winCrop expressed in crop's coordinate space |
| const float xScale = crop.getWidth() / float(winWidth); |
| const float yScale = crop.getHeight() / float(winHeight); |
| |
| const float insetLeft = winCrop.left * xScale; |
| const float insetTop = winCrop.top * yScale; |
| const float insetRight = (winWidth - winCrop.right) * xScale; |
| const float insetBottom = (winHeight - winCrop.bottom) * yScale; |
| |
| crop.left += insetLeft; |
| crop.top += insetTop; |
| crop.right -= insetRight; |
| crop.bottom -= insetBottom; |
| |
| return crop; |
| } |
| |
| Rect OutputLayer::calculateOutputDisplayFrame() const { |
| const auto& layerState = *getLayerFE().getCompositionState(); |
| const auto& outputState = getOutput().getState(); |
| |
| // apply the layer's transform, followed by the display's global transform |
| // here we're guaranteed that the layer's transform preserves rects |
| Region activeTransparentRegion = layerState.transparentRegionHint; |
| const ui::Transform& layerTransform = layerState.geomLayerTransform; |
| const ui::Transform& inverseLayerTransform = layerState.geomInverseLayerTransform; |
| const Rect& bufferSize = layerState.geomBufferSize; |
| Rect activeCrop = layerState.geomCrop; |
| if (!activeCrop.isEmpty() && bufferSize.isValid()) { |
| activeCrop = layerTransform.transform(activeCrop); |
| if (!activeCrop.intersect(outputState.layerStackSpace.content, &activeCrop)) { |
| activeCrop.clear(); |
| } |
| activeCrop = inverseLayerTransform.transform(activeCrop, true); |
| // This needs to be here as transform.transform(Rect) computes the |
| // transformed rect and then takes the bounding box of the result before |
| // returning. This means |
| // transform.inverse().transform(transform.transform(Rect)) != Rect |
| // in which case we need to make sure the final rect is clipped to the |
| // display bounds. |
| if (!activeCrop.intersect(bufferSize, &activeCrop)) { |
| activeCrop.clear(); |
| } |
| // mark regions outside the crop as transparent |
| activeTransparentRegion.orSelf(Rect(0, 0, bufferSize.getWidth(), activeCrop.top)); |
| activeTransparentRegion.orSelf( |
| Rect(0, activeCrop.bottom, bufferSize.getWidth(), bufferSize.getHeight())); |
| activeTransparentRegion.orSelf(Rect(0, activeCrop.top, activeCrop.left, activeCrop.bottom)); |
| activeTransparentRegion.orSelf( |
| Rect(activeCrop.right, activeCrop.top, bufferSize.getWidth(), activeCrop.bottom)); |
| } |
| |
| // reduce uses a FloatRect to provide more accuracy during the |
| // transformation. We then round upon constructing 'frame'. |
| Rect frame{ |
| layerTransform.transform(reduce(layerState.geomLayerBounds, activeTransparentRegion))}; |
| if (!frame.intersect(outputState.layerStackSpace.content, &frame)) { |
| frame.clear(); |
| } |
| const ui::Transform displayTransform{outputState.transform}; |
| |
| return displayTransform.transform(frame); |
| } |
| |
| uint32_t OutputLayer::calculateOutputRelativeBufferTransform( |
| uint32_t internalDisplayRotationFlags) const { |
| const auto& layerState = *getLayerFE().getCompositionState(); |
| const auto& outputState = getOutput().getState(); |
| |
| /* |
| * 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 ui::Transform& layerTransform = layerState.geomLayerTransform; |
| const ui::Transform displayTransform{outputState.transform}; |
| const ui::Transform bufferTransform{layerState.geomBufferTransform}; |
| ui::Transform transform(displayTransform * layerTransform * bufferTransform); |
| |
| if (layerState.geomBufferUsesDisplayInverseTransform) { |
| /* |
| * We must apply the internal display's inverse transform to the buffer |
| * transform, and not the one for the output this layer is on. |
| */ |
| uint32_t invTransform = internalDisplayRotationFlags; |
| |
| // calculate the inverse transform |
| if (invTransform & HAL_TRANSFORM_ROT_90) { |
| invTransform ^= HAL_TRANSFORM_FLIP_V | HAL_TRANSFORM_FLIP_H; |
| } |
| |
| /* |
| * Here we cancel out the orientation component of the WM transform. |
| * The scaling and translate components are already included in our bounds |
| * computation so it's enough to just omit it in the composition. |
| * See comment in BufferLayer::prepareClientLayer with ref to b/36727915 for why. |
| */ |
| transform = ui::Transform(invTransform) * displayTransform * bufferTransform; |
| } |
| |
| // this gives us only the "orientation" component of the transform |
| return transform.getOrientation(); |
| } |
| |
| void OutputLayer::updateCompositionState( |
| bool includeGeometry, bool forceClientComposition, |
| ui::Transform::RotationFlags internalDisplayRotationFlags) { |
| const auto* layerFEState = getLayerFE().getCompositionState(); |
| if (!layerFEState) { |
| return; |
| } |
| |
| const auto& outputState = getOutput().getState(); |
| const auto& profile = *getOutput().getDisplayColorProfile(); |
| auto& state = editState(); |
| |
| if (includeGeometry) { |
| // Clear the forceClientComposition flag before it is set for any |
| // reason. Note that since it can be set by some checks below when |
| // updating the geometry state, we only clear it when updating the |
| // geometry since those conditions for forcing client composition won't |
| // go away otherwise. |
| state.forceClientComposition = false; |
| |
| state.displayFrame = calculateOutputDisplayFrame(); |
| state.sourceCrop = calculateOutputSourceCrop(); |
| state.bufferTransform = static_cast<Hwc2::Transform>( |
| calculateOutputRelativeBufferTransform(internalDisplayRotationFlags)); |
| |
| if ((layerFEState->isSecure && !outputState.isSecure) || |
| (state.bufferTransform & ui::Transform::ROT_INVALID)) { |
| state.forceClientComposition = true; |
| } |
| } |
| |
| // Determine the output dependent dataspace for this layer. If it is |
| // colorspace agnostic, it just uses the dataspace chosen for the output to |
| // avoid the need for color conversion. |
| state.dataspace = layerFEState->isColorspaceAgnostic && |
| outputState.targetDataspace != ui::Dataspace::UNKNOWN |
| ? outputState.targetDataspace |
| : layerFEState->dataspace; |
| |
| // These are evaluated every frame as they can potentially change at any |
| // time. |
| if (layerFEState->forceClientComposition || !profile.isDataspaceSupported(state.dataspace) || |
| forceClientComposition) { |
| state.forceClientComposition = true; |
| } |
| } |
| |
| void OutputLayer::writeStateToHWC(bool includeGeometry) { |
| const auto& state = getState(); |
| // Skip doing this if there is no HWC interface |
| if (!state.hwc) { |
| return; |
| } |
| |
| auto& hwcLayer = (*state.hwc).hwcLayer; |
| if (!hwcLayer) { |
| ALOGE("[%s] failed to write composition state to HWC -- no hwcLayer for output %s", |
| getLayerFE().getDebugName(), getOutput().getName().c_str()); |
| return; |
| } |
| |
| const auto* outputIndependentState = getLayerFE().getCompositionState(); |
| if (!outputIndependentState) { |
| return; |
| } |
| |
| auto requestedCompositionType = outputIndependentState->compositionType; |
| |
| if (includeGeometry) { |
| writeOutputDependentGeometryStateToHWC(hwcLayer.get(), requestedCompositionType); |
| writeOutputIndependentGeometryStateToHWC(hwcLayer.get(), *outputIndependentState); |
| } |
| |
| writeOutputDependentPerFrameStateToHWC(hwcLayer.get()); |
| writeOutputIndependentPerFrameStateToHWC(hwcLayer.get(), *outputIndependentState); |
| |
| writeCompositionTypeToHWC(hwcLayer.get(), requestedCompositionType); |
| |
| // Always set the layer color after setting the composition type. |
| writeSolidColorStateToHWC(hwcLayer.get(), *outputIndependentState); |
| } |
| |
| void OutputLayer::writeOutputDependentGeometryStateToHWC( |
| HWC2::Layer* hwcLayer, hal::Composition requestedCompositionType) { |
| const auto& outputDependentState = getState(); |
| |
| if (auto error = hwcLayer->setDisplayFrame(outputDependentState.displayFrame); |
| error != hal::Error::NONE) { |
| ALOGE("[%s] Failed to set display frame [%d, %d, %d, %d]: %s (%d)", |
| getLayerFE().getDebugName(), outputDependentState.displayFrame.left, |
| outputDependentState.displayFrame.top, outputDependentState.displayFrame.right, |
| outputDependentState.displayFrame.bottom, to_string(error).c_str(), |
| static_cast<int32_t>(error)); |
| } |
| |
| if (auto error = hwcLayer->setSourceCrop(outputDependentState.sourceCrop); |
| error != hal::Error::NONE) { |
| ALOGE("[%s] Failed to set source crop [%.3f, %.3f, %.3f, %.3f]: " |
| "%s (%d)", |
| getLayerFE().getDebugName(), outputDependentState.sourceCrop.left, |
| outputDependentState.sourceCrop.top, outputDependentState.sourceCrop.right, |
| outputDependentState.sourceCrop.bottom, to_string(error).c_str(), |
| static_cast<int32_t>(error)); |
| } |
| |
| if (auto error = hwcLayer->setZOrder(outputDependentState.z); error != hal::Error::NONE) { |
| ALOGE("[%s] Failed to set Z %u: %s (%d)", getLayerFE().getDebugName(), |
| outputDependentState.z, to_string(error).c_str(), static_cast<int32_t>(error)); |
| } |
| |
| // Solid-color layers should always use an identity transform. |
| const auto bufferTransform = requestedCompositionType != hal::Composition::SOLID_COLOR |
| ? outputDependentState.bufferTransform |
| : static_cast<hal::Transform>(0); |
| if (auto error = hwcLayer->setTransform(static_cast<hal::Transform>(bufferTransform)); |
| error != hal::Error::NONE) { |
| ALOGE("[%s] Failed to set transform %s: %s (%d)", getLayerFE().getDebugName(), |
| toString(outputDependentState.bufferTransform).c_str(), to_string(error).c_str(), |
| static_cast<int32_t>(error)); |
| } |
| } |
| |
| void OutputLayer::writeOutputIndependentGeometryStateToHWC( |
| HWC2::Layer* hwcLayer, const LayerFECompositionState& outputIndependentState) { |
| if (auto error = hwcLayer->setBlendMode(outputIndependentState.blendMode); |
| error != hal::Error::NONE) { |
| ALOGE("[%s] Failed to set blend mode %s: %s (%d)", getLayerFE().getDebugName(), |
| toString(outputIndependentState.blendMode).c_str(), to_string(error).c_str(), |
| static_cast<int32_t>(error)); |
| } |
| |
| if (auto error = hwcLayer->setPlaneAlpha(outputIndependentState.alpha); |
| error != hal::Error::NONE) { |
| ALOGE("[%s] Failed to set plane alpha %.3f: %s (%d)", getLayerFE().getDebugName(), |
| outputIndependentState.alpha, to_string(error).c_str(), static_cast<int32_t>(error)); |
| } |
| |
| if (auto error = hwcLayer->setInfo(static_cast<uint32_t>(outputIndependentState.type), |
| static_cast<uint32_t>(outputIndependentState.appId)); |
| error != hal::Error::NONE) { |
| ALOGE("[%s] Failed to set info %s (%d)", getLayerFE().getDebugName(), |
| to_string(error).c_str(), static_cast<int32_t>(error)); |
| } |
| |
| for (const auto& [name, entry] : outputIndependentState.metadata) { |
| if (auto error = hwcLayer->setLayerGenericMetadata(name, entry.mandatory, entry.value); |
| error != hal::Error::NONE) { |
| ALOGE("[%s] Failed to set generic metadata %s %s (%d)", getLayerFE().getDebugName(), |
| name.c_str(), to_string(error).c_str(), static_cast<int32_t>(error)); |
| } |
| } |
| } |
| |
| void OutputLayer::writeOutputDependentPerFrameStateToHWC(HWC2::Layer* hwcLayer) { |
| const auto& outputDependentState = getState(); |
| |
| // TODO(lpique): b/121291683 outputSpaceVisibleRegion is output-dependent geometry |
| // state and should not change every frame. |
| if (auto error = hwcLayer->setVisibleRegion(outputDependentState.outputSpaceVisibleRegion); |
| error != hal::Error::NONE) { |
| ALOGE("[%s] Failed to set visible region: %s (%d)", getLayerFE().getDebugName(), |
| to_string(error).c_str(), static_cast<int32_t>(error)); |
| outputDependentState.outputSpaceVisibleRegion.dump(LOG_TAG); |
| } |
| |
| if (auto error = hwcLayer->setDataspace(outputDependentState.dataspace); |
| error != hal::Error::NONE) { |
| ALOGE("[%s] Failed to set dataspace %d: %s (%d)", getLayerFE().getDebugName(), |
| outputDependentState.dataspace, to_string(error).c_str(), |
| static_cast<int32_t>(error)); |
| } |
| } |
| |
| void OutputLayer::writeOutputIndependentPerFrameStateToHWC( |
| HWC2::Layer* hwcLayer, const LayerFECompositionState& outputIndependentState) { |
| switch (auto error = hwcLayer->setColorTransform(outputIndependentState.colorTransform)) { |
| case hal::Error::NONE: |
| break; |
| case hal::Error::UNSUPPORTED: |
| editState().forceClientComposition = true; |
| break; |
| default: |
| ALOGE("[%s] Failed to set color transform: %s (%d)", getLayerFE().getDebugName(), |
| to_string(error).c_str(), static_cast<int32_t>(error)); |
| } |
| |
| if (auto error = hwcLayer->setSurfaceDamage(outputIndependentState.surfaceDamage); |
| error != hal::Error::NONE) { |
| ALOGE("[%s] Failed to set surface damage: %s (%d)", getLayerFE().getDebugName(), |
| to_string(error).c_str(), static_cast<int32_t>(error)); |
| outputIndependentState.surfaceDamage.dump(LOG_TAG); |
| } |
| |
| // Content-specific per-frame state |
| switch (outputIndependentState.compositionType) { |
| case hal::Composition::SOLID_COLOR: |
| // For compatibility, should be written AFTER the composition type. |
| break; |
| case hal::Composition::SIDEBAND: |
| writeSidebandStateToHWC(hwcLayer, outputIndependentState); |
| break; |
| case hal::Composition::CURSOR: |
| case hal::Composition::DEVICE: |
| writeBufferStateToHWC(hwcLayer, outputIndependentState); |
| break; |
| case hal::Composition::INVALID: |
| case hal::Composition::CLIENT: |
| // Ignored |
| break; |
| } |
| } |
| |
| void OutputLayer::writeSolidColorStateToHWC(HWC2::Layer* hwcLayer, |
| const LayerFECompositionState& outputIndependentState) { |
| if (outputIndependentState.compositionType != hal::Composition::SOLID_COLOR) { |
| return; |
| } |
| |
| hal::Color color = {static_cast<uint8_t>(std::round(255.0f * outputIndependentState.color.r)), |
| static_cast<uint8_t>(std::round(255.0f * outputIndependentState.color.g)), |
| static_cast<uint8_t>(std::round(255.0f * outputIndependentState.color.b)), |
| 255}; |
| |
| if (auto error = hwcLayer->setColor(color); error != hal::Error::NONE) { |
| ALOGE("[%s] Failed to set color: %s (%d)", getLayerFE().getDebugName(), |
| to_string(error).c_str(), static_cast<int32_t>(error)); |
| } |
| } |
| |
| void OutputLayer::writeSidebandStateToHWC(HWC2::Layer* hwcLayer, |
| const LayerFECompositionState& outputIndependentState) { |
| if (auto error = hwcLayer->setSidebandStream(outputIndependentState.sidebandStream->handle()); |
| error != hal::Error::NONE) { |
| ALOGE("[%s] Failed to set sideband stream %p: %s (%d)", getLayerFE().getDebugName(), |
| outputIndependentState.sidebandStream->handle(), to_string(error).c_str(), |
| static_cast<int32_t>(error)); |
| } |
| } |
| |
| void OutputLayer::writeBufferStateToHWC(HWC2::Layer* hwcLayer, |
| const LayerFECompositionState& outputIndependentState) { |
| auto supportedPerFrameMetadata = |
| getOutput().getDisplayColorProfile()->getSupportedPerFrameMetadata(); |
| if (auto error = hwcLayer->setPerFrameMetadata(supportedPerFrameMetadata, |
| outputIndependentState.hdrMetadata); |
| error != hal::Error::NONE && error != hal::Error::UNSUPPORTED) { |
| ALOGE("[%s] Failed to set hdrMetadata: %s (%d)", getLayerFE().getDebugName(), |
| to_string(error).c_str(), static_cast<int32_t>(error)); |
| } |
| |
| uint32_t hwcSlot = 0; |
| sp<GraphicBuffer> hwcBuffer; |
| // We need access to the output-dependent state for the buffer cache there, |
| // though otherwise the buffer is not output-dependent. |
| editState().hwc->hwcBufferCache.getHwcBuffer(outputIndependentState.bufferSlot, |
| outputIndependentState.buffer, &hwcSlot, |
| &hwcBuffer); |
| |
| if (auto error = hwcLayer->setBuffer(hwcSlot, hwcBuffer, outputIndependentState.acquireFence); |
| error != hal::Error::NONE) { |
| ALOGE("[%s] Failed to set buffer %p: %s (%d)", getLayerFE().getDebugName(), |
| outputIndependentState.buffer->handle, to_string(error).c_str(), |
| static_cast<int32_t>(error)); |
| } |
| } |
| |
| void OutputLayer::writeCompositionTypeToHWC(HWC2::Layer* hwcLayer, |
| hal::Composition requestedCompositionType) { |
| auto& outputDependentState = editState(); |
| |
| // If we are forcing client composition, we need to tell the HWC |
| if (outputDependentState.forceClientComposition) { |
| requestedCompositionType = hal::Composition::CLIENT; |
| } |
| |
| // Set the requested composition type with the HWC whenever it changes |
| if (outputDependentState.hwc->hwcCompositionType != requestedCompositionType) { |
| outputDependentState.hwc->hwcCompositionType = requestedCompositionType; |
| |
| if (auto error = hwcLayer->setCompositionType(requestedCompositionType); |
| error != hal::Error::NONE) { |
| ALOGE("[%s] Failed to set composition type %s: %s (%d)", getLayerFE().getDebugName(), |
| toString(requestedCompositionType).c_str(), to_string(error).c_str(), |
| static_cast<int32_t>(error)); |
| } |
| } |
| } |
| |
| void OutputLayer::writeCursorPositionToHWC() const { |
| // Skip doing this if there is no HWC interface |
| auto hwcLayer = getHwcLayer(); |
| if (!hwcLayer) { |
| return; |
| } |
| |
| const auto* layerFEState = getLayerFE().getCompositionState(); |
| if (!layerFEState) { |
| return; |
| } |
| |
| const auto& outputState = getOutput().getState(); |
| |
| Rect frame = layerFEState->cursorFrame; |
| frame.intersect(outputState.layerStackSpace.content, &frame); |
| Rect position = outputState.transform.transform(frame); |
| |
| if (auto error = hwcLayer->setCursorPosition(position.left, position.top); |
| error != hal::Error::NONE) { |
| ALOGE("[%s] Failed to set cursor position to (%d, %d): %s (%d)", |
| getLayerFE().getDebugName(), position.left, position.top, to_string(error).c_str(), |
| static_cast<int32_t>(error)); |
| } |
| } |
| |
| HWC2::Layer* OutputLayer::getHwcLayer() const { |
| const auto& state = getState(); |
| return state.hwc ? state.hwc->hwcLayer.get() : nullptr; |
| } |
| |
| bool OutputLayer::requiresClientComposition() const { |
| const auto& state = getState(); |
| return !state.hwc || state.hwc->hwcCompositionType == hal::Composition::CLIENT; |
| } |
| |
| bool OutputLayer::isHardwareCursor() const { |
| const auto& state = getState(); |
| return state.hwc && state.hwc->hwcCompositionType == hal::Composition::CURSOR; |
| } |
| |
| void OutputLayer::detectDisallowedCompositionTypeChange(hal::Composition from, |
| hal::Composition to) const { |
| bool result = false; |
| switch (from) { |
| case hal::Composition::INVALID: |
| case hal::Composition::CLIENT: |
| result = false; |
| break; |
| |
| case hal::Composition::DEVICE: |
| case hal::Composition::SOLID_COLOR: |
| result = (to == hal::Composition::CLIENT); |
| break; |
| |
| case hal::Composition::CURSOR: |
| case hal::Composition::SIDEBAND: |
| result = (to == hal::Composition::CLIENT || to == hal::Composition::DEVICE); |
| break; |
| } |
| |
| if (!result) { |
| ALOGE("[%s] Invalid device requested composition type change: %s (%d) --> %s (%d)", |
| getLayerFE().getDebugName(), toString(from).c_str(), static_cast<int>(from), |
| toString(to).c_str(), static_cast<int>(to)); |
| } |
| } |
| |
| void OutputLayer::applyDeviceCompositionTypeChange(hal::Composition compositionType) { |
| auto& state = editState(); |
| LOG_FATAL_IF(!state.hwc); |
| auto& hwcState = *state.hwc; |
| |
| detectDisallowedCompositionTypeChange(hwcState.hwcCompositionType, compositionType); |
| |
| hwcState.hwcCompositionType = compositionType; |
| } |
| |
| void OutputLayer::prepareForDeviceLayerRequests() { |
| auto& state = editState(); |
| state.clearClientTarget = false; |
| } |
| |
| void OutputLayer::applyDeviceLayerRequest(hal::LayerRequest request) { |
| auto& state = editState(); |
| switch (request) { |
| case hal::LayerRequest::CLEAR_CLIENT_TARGET: |
| state.clearClientTarget = true; |
| break; |
| |
| default: |
| ALOGE("[%s] Unknown device layer request %s (%d)", getLayerFE().getDebugName(), |
| toString(request).c_str(), static_cast<int>(request)); |
| break; |
| } |
| } |
| |
| bool OutputLayer::needsFiltering() const { |
| const auto& state = getState(); |
| const auto& displayFrame = state.displayFrame; |
| const auto& sourceCrop = state.sourceCrop; |
| return sourceCrop.getHeight() != displayFrame.getHeight() || |
| sourceCrop.getWidth() != displayFrame.getWidth(); |
| } |
| |
| void OutputLayer::dump(std::string& out) const { |
| using android::base::StringAppendF; |
| |
| StringAppendF(&out, " - Output Layer %p(%s)\n", this, getLayerFE().getDebugName()); |
| dumpState(out); |
| } |
| |
| } // namespace impl |
| } // namespace android::compositionengine |