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Diffstat (limited to 'widget/gonk/hwchal/HwcHAL.cpp')
| -rw-r--r-- | widget/gonk/hwchal/HwcHAL.cpp | 214 |
1 files changed, 214 insertions, 0 deletions
diff --git a/widget/gonk/hwchal/HwcHAL.cpp b/widget/gonk/hwchal/HwcHAL.cpp new file mode 100644 index 0000000000..1793b75e65 --- /dev/null +++ b/widget/gonk/hwchal/HwcHAL.cpp @@ -0,0 +1,214 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* vim:set ts=4 sw=4 sts=4 et: */ +/* + * Copyright (c) 2015 The Linux Foundation. All rights reserved. + * + * 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 "HwcHAL.h" +#include "libdisplay/GonkDisplay.h" +#include "mozilla/Assertions.h" + +namespace mozilla { + +HwcHAL::HwcHAL() + : HwcHALBase() +{ + // Some HALs don't want to open hwc twice. + // If GetDisplay already load hwc module, we don't need to load again + mHwc = (HwcDevice*)GetGonkDisplay()->GetHWCDevice(); + if (!mHwc) { + printf_stderr("HwcHAL Error: Cannot load hwcomposer"); + return; + } +} + +HwcHAL::~HwcHAL() +{ + mHwc = nullptr; +} + +bool +HwcHAL::Query(QueryType aType) +{ + if (!mHwc || !mHwc->query) { + return false; + } + + bool value = false; + int supported = 0; + if (mHwc->query(mHwc, static_cast<int>(aType), &supported) == 0/*android::NO_ERROR*/) { + value = !!supported; + } + return value; +} + +int +HwcHAL::Set(HwcList *aList, + uint32_t aDisp) +{ + MOZ_ASSERT(mHwc); + if (!mHwc) { + return -1; + } + + HwcList *displays[HWC_NUM_DISPLAY_TYPES] = { nullptr }; + displays[aDisp] = aList; + return mHwc->set(mHwc, HWC_NUM_DISPLAY_TYPES, displays); +} + +int +HwcHAL::ResetHwc() +{ + return Set(nullptr, HWC_DISPLAY_PRIMARY); +} + +int +HwcHAL::Prepare(HwcList *aList, + uint32_t aDisp, + hwc_rect_t aDispRect, + buffer_handle_t aHandle, + int aFenceFd) +{ + MOZ_ASSERT(mHwc); + if (!mHwc) { + printf_stderr("HwcHAL Error: HwcDevice doesn't exist. A fence might be leaked."); + return -1; + } + + HwcList *displays[HWC_NUM_DISPLAY_TYPES] = { nullptr }; + displays[aDisp] = aList; +#if ANDROID_VERSION >= 18 + aList->outbufAcquireFenceFd = -1; + aList->outbuf = nullptr; +#endif + aList->retireFenceFd = -1; + + const auto idx = aList->numHwLayers - 1; + aList->hwLayers[idx].hints = 0; + aList->hwLayers[idx].flags = 0; + aList->hwLayers[idx].transform = 0; + aList->hwLayers[idx].handle = aHandle; + aList->hwLayers[idx].blending = HWC_BLENDING_PREMULT; + aList->hwLayers[idx].compositionType = HWC_FRAMEBUFFER_TARGET; + SetCrop(aList->hwLayers[idx], aDispRect); + aList->hwLayers[idx].displayFrame = aDispRect; + aList->hwLayers[idx].visibleRegionScreen.numRects = 1; + aList->hwLayers[idx].visibleRegionScreen.rects = &aList->hwLayers[idx].displayFrame; + aList->hwLayers[idx].acquireFenceFd = aFenceFd; + aList->hwLayers[idx].releaseFenceFd = -1; +#if ANDROID_VERSION >= 18 + aList->hwLayers[idx].planeAlpha = 0xFF; +#endif + return mHwc->prepare(mHwc, HWC_NUM_DISPLAY_TYPES, displays); +} + +bool +HwcHAL::SupportTransparency() const +{ +#if ANDROID_VERSION >= 18 + return true; +#endif + return false; +} + +uint32_t +HwcHAL::GetGeometryChangedFlag(bool aGeometryChanged) const +{ +#if ANDROID_VERSION >= 19 + return aGeometryChanged ? HWC_GEOMETRY_CHANGED : 0; +#else + return HWC_GEOMETRY_CHANGED; +#endif +} + +void +HwcHAL::SetCrop(HwcLayer &aLayer, + const hwc_rect_t &aSrcCrop) const +{ + if (GetAPIVersion() >= HwcAPIVersion(1, 3)) { +#if ANDROID_VERSION >= 19 + aLayer.sourceCropf.left = aSrcCrop.left; + aLayer.sourceCropf.top = aSrcCrop.top; + aLayer.sourceCropf.right = aSrcCrop.right; + aLayer.sourceCropf.bottom = aSrcCrop.bottom; +#endif + } else { + aLayer.sourceCrop = aSrcCrop; + } +} + +bool +HwcHAL::EnableVsync(bool aEnable) +{ + // Only support hardware vsync on kitkat, L and up due to inaccurate timings + // with JellyBean. +#if (ANDROID_VERSION == 19 || ANDROID_VERSION >= 21) + if (!mHwc) { + return false; + } + return !mHwc->eventControl(mHwc, + HWC_DISPLAY_PRIMARY, + HWC_EVENT_VSYNC, + aEnable); +#else + return false; +#endif +} + +bool +HwcHAL::RegisterHwcEventCallback(const HwcHALProcs_t &aProcs) +{ + if (!mHwc || !mHwc->registerProcs) { + printf_stderr("Failed to get hwc\n"); + return false; + } + + // Disable Vsync first, and then register callback functions. + mHwc->eventControl(mHwc, + HWC_DISPLAY_PRIMARY, + HWC_EVENT_VSYNC, + false); + static const hwc_procs_t sHwcJBProcs = {aProcs.invalidate, + aProcs.vsync, + aProcs.hotplug}; + mHwc->registerProcs(mHwc, &sHwcJBProcs); + + // Only support hardware vsync on kitkat, L and up due to inaccurate timings + // with JellyBean. +#if (ANDROID_VERSION == 19 || ANDROID_VERSION >= 21) + return true; +#else + return false; +#endif +} + +uint32_t +HwcHAL::GetAPIVersion() const +{ + if (!mHwc) { + // default value: HWC_MODULE_API_VERSION_0_1 + return 1; + } + return mHwc->common.version; +} + +// Create HwcHAL +UniquePtr<HwcHALBase> +HwcHALBase::CreateHwcHAL() +{ + return Move(MakeUnique<HwcHAL>()); +} + +} // namespace mozilla |