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      1 /*
      2  * Copyright 2019 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #include <android-base/stringprintf.h>
     18 #include <compositionengine/CompositionEngine.h>
     19 #include <compositionengine/DisplayCreationArgs.h>
     20 #include <compositionengine/DisplaySurface.h>
     21 #include <compositionengine/impl/Display.h>
     22 #include <compositionengine/impl/DisplayColorProfile.h>
     23 #include <compositionengine/impl/DumpHelpers.h>
     24 #include <compositionengine/impl/RenderSurface.h>
     25 
     26 #include "DisplayHardware/HWComposer.h"
     27 
     28 namespace android::compositionengine::impl {
     29 
     30 std::shared_ptr<compositionengine::Display> createDisplay(
     31         const compositionengine::CompositionEngine& compositionEngine,
     32         compositionengine::DisplayCreationArgs&& args) {
     33     return std::make_shared<Display>(compositionEngine, std::move(args));
     34 }
     35 
     36 Display::Display(const CompositionEngine& compositionEngine, DisplayCreationArgs&& args)
     37       : compositionengine::impl::Output(compositionEngine),
     38         mIsVirtual(args.isVirtual),
     39         mId(args.displayId) {
     40     editState().isSecure = args.isSecure;
     41 }
     42 
     43 Display::~Display() = default;
     44 
     45 const std::optional<DisplayId>& Display::getId() const {
     46     return mId;
     47 }
     48 
     49 bool Display::isSecure() const {
     50     return getState().isSecure;
     51 }
     52 
     53 bool Display::isVirtual() const {
     54     return mIsVirtual;
     55 }
     56 
     57 void Display::disconnect() {
     58     if (!mId) {
     59         return;
     60     }
     61 
     62     auto& hwc = getCompositionEngine().getHwComposer();
     63     hwc.disconnectDisplay(*mId);
     64     mId.reset();
     65 }
     66 
     67 void Display::setColorTransform(const mat4& transform) {
     68     Output::setColorTransform(transform);
     69 
     70     auto& hwc = getCompositionEngine().getHwComposer();
     71     status_t result = hwc.setColorTransform(*mId, transform);
     72     ALOGE_IF(result != NO_ERROR, "Failed to set color transform on display \"%s\": %d",
     73              mId ? to_string(*mId).c_str() : "", result);
     74 }
     75 
     76 void Display::setColorMode(ui::ColorMode mode, ui::Dataspace dataspace,
     77                            ui::RenderIntent renderIntent) {
     78     if (mode == getState().colorMode && dataspace == getState().dataspace &&
     79         renderIntent == getState().renderIntent) {
     80         return;
     81     }
     82 
     83     if (mIsVirtual) {
     84         ALOGW("%s: Invalid operation on virtual display", __FUNCTION__);
     85         return;
     86     }
     87 
     88     Output::setColorMode(mode, dataspace, renderIntent);
     89 
     90     auto& hwc = getCompositionEngine().getHwComposer();
     91     hwc.setActiveColorMode(*mId, mode, renderIntent);
     92 }
     93 
     94 void Display::dump(std::string& out) const {
     95     using android::base::StringAppendF;
     96 
     97     StringAppendF(&out, "   Composition Display State: [\"%s\"]", getName().c_str());
     98 
     99     out.append("\n   ");
    100 
    101     dumpVal(out, "isVirtual", mIsVirtual);
    102     if (mId) {
    103         dumpVal(out, "hwcId", to_string(*mId));
    104     } else {
    105         StringAppendF(&out, "no hwcId, ");
    106     }
    107 
    108     out.append("\n");
    109 
    110     Output::dumpBase(out);
    111 }
    112 
    113 void Display::createDisplayColorProfile(DisplayColorProfileCreationArgs&& args) {
    114     setDisplayColorProfile(compositionengine::impl::createDisplayColorProfile(std::move(args)));
    115 }
    116 
    117 void Display::createRenderSurface(RenderSurfaceCreationArgs&& args) {
    118     setRenderSurface(compositionengine::impl::createRenderSurface(getCompositionEngine(), *this,
    119                                                                   std::move(args)));
    120 }
    121 
    122 } // namespace android::compositionengine::impl
    123