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/*
* Copyright (C) 2022 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.
*/
#define LOG_TAG "hwc-layer"
#include "HwcLayer.h"
#include <fcntl.h>
#include "utils/log.h"
namespace android {
// NOLINTNEXTLINE(readability-convert-member-functions-to-static)
HWC2::Error HwcLayer::SetCursorPosition(int32_t /*x*/, int32_t /*y*/) {
return HWC2::Error::None;
}
HWC2::Error HwcLayer::SetLayerBlendMode(int32_t mode) {
switch (static_cast<HWC2::BlendMode>(mode)) {
case HWC2::BlendMode::None:
blending_ = DrmHwcBlending::kNone;
break;
case HWC2::BlendMode::Premultiplied:
blending_ = DrmHwcBlending::kPreMult;
break;
case HWC2::BlendMode::Coverage:
blending_ = DrmHwcBlending::kCoverage;
break;
default:
ALOGE("Unknown blending mode b=%d", blending_);
blending_ = DrmHwcBlending::kNone;
break;
}
return HWC2::Error::None;
}
/* Find API details at:
* https://cs.android.com/android/platform/superproject/+/android-11.0.0_r3:hardware/libhardware/include/hardware/hwcomposer2.h;l=2314
*/
HWC2::Error HwcLayer::SetLayerBuffer(buffer_handle_t buffer,
int32_t acquire_fence) {
buffer_ = buffer;
acquire_fence_ = UniqueFd(acquire_fence);
return HWC2::Error::None;
}
// NOLINTNEXTLINE(readability-convert-member-functions-to-static)
HWC2::Error HwcLayer::SetLayerColor(hwc_color_t /*color*/) {
// TODO(nobody): Put to client composition here?
return HWC2::Error::None;
}
HWC2::Error HwcLayer::SetLayerCompositionType(int32_t type) {
sf_type_ = static_cast<HWC2::Composition>(type);
return HWC2::Error::None;
}
HWC2::Error HwcLayer::SetLayerDataspace(int32_t dataspace) {
switch (dataspace & HAL_DATASPACE_STANDARD_MASK) {
case HAL_DATASPACE_STANDARD_BT709:
color_space_ = DrmHwcColorSpace::kItuRec709;
break;
case HAL_DATASPACE_STANDARD_BT601_625:
case HAL_DATASPACE_STANDARD_BT601_625_UNADJUSTED:
case HAL_DATASPACE_STANDARD_BT601_525:
case HAL_DATASPACE_STANDARD_BT601_525_UNADJUSTED:
color_space_ = DrmHwcColorSpace::kItuRec601;
break;
case HAL_DATASPACE_STANDARD_BT2020:
case HAL_DATASPACE_STANDARD_BT2020_CONSTANT_LUMINANCE:
color_space_ = DrmHwcColorSpace::kItuRec2020;
break;
default:
color_space_ = DrmHwcColorSpace::kUndefined;
}
switch (dataspace & HAL_DATASPACE_RANGE_MASK) {
case HAL_DATASPACE_RANGE_FULL:
sample_range_ = DrmHwcSampleRange::kFullRange;
break;
case HAL_DATASPACE_RANGE_LIMITED:
sample_range_ = DrmHwcSampleRange::kLimitedRange;
break;
default:
sample_range_ = DrmHwcSampleRange::kUndefined;
}
return HWC2::Error::None;
}
HWC2::Error HwcLayer::SetLayerDisplayFrame(hwc_rect_t frame) {
display_frame_ = frame;
return HWC2::Error::None;
}
HWC2::Error HwcLayer::SetLayerPlaneAlpha(float alpha) {
alpha_ = alpha;
return HWC2::Error::None;
}
// NOLINTNEXTLINE(readability-convert-member-functions-to-static)
HWC2::Error HwcLayer::SetLayerSidebandStream(
const native_handle_t * /*stream*/) {
// TODO(nobody): We don't support sideband
return HWC2::Error::Unsupported;
}
HWC2::Error HwcLayer::SetLayerSourceCrop(hwc_frect_t crop) {
source_crop_ = crop;
return HWC2::Error::None;
}
// NOLINTNEXTLINE(readability-convert-member-functions-to-static)
HWC2::Error HwcLayer::SetLayerSurfaceDamage(hwc_region_t /*damage*/) {
// TODO(nobody): We don't use surface damage, marking as unsupported
return HWC2::Error::None;
}
HWC2::Error HwcLayer::SetLayerTransform(int32_t transform) {
uint32_t l_transform = 0;
// 270* and 180* cannot be combined with flips. More specifically, they
// already contain both horizontal and vertical flips, so those fields are
// redundant in this case. 90* rotation can be combined with either horizontal
// flip or vertical flip, so treat it differently
if (transform == HWC_TRANSFORM_ROT_270) {
l_transform = DrmHwcTransform::kRotate270;
} else if (transform == HWC_TRANSFORM_ROT_180) {
l_transform = DrmHwcTransform::kRotate180;
} else {
if ((transform & HWC_TRANSFORM_FLIP_H) != 0)
l_transform |= DrmHwcTransform::kFlipH;
if ((transform & HWC_TRANSFORM_FLIP_V) != 0)
l_transform |= DrmHwcTransform::kFlipV;
if ((transform & HWC_TRANSFORM_ROT_90) != 0)
l_transform |= DrmHwcTransform::kRotate90;
}
transform_ = static_cast<DrmHwcTransform>(l_transform);
return HWC2::Error::None;
}
// NOLINTNEXTLINE(readability-convert-member-functions-to-static)
HWC2::Error HwcLayer::SetLayerVisibleRegion(hwc_region_t /*visible*/) {
// TODO(nobody): We don't use this information, marking as unsupported
return HWC2::Error::None;
}
HWC2::Error HwcLayer::SetLayerZOrder(uint32_t order) {
z_order_ = order;
return HWC2::Error::None;
}
void HwcLayer::PopulateDrmLayer(DrmHwcLayer *layer) {
layer->sf_handle = buffer_;
// TODO(rsglobal): Avoid extra fd duplication
layer->acquire_fence = UniqueFd(fcntl(acquire_fence_.Get(), F_DUPFD_CLOEXEC));
layer->display_frame = display_frame_;
layer->alpha = std::lround(alpha_ * UINT16_MAX);
layer->blending = blending_;
layer->source_crop = source_crop_;
layer->transform = transform_;
layer->color_space = color_space_;
layer->sample_range = sample_range_;
}
} // namespace android
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