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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 #pragma once
     18 
     19 #include <cstdint>
     20 
     21 #include <math/mat4.h>
     22 #include <ui/GraphicTypes.h>
     23 #include <ui/Rect.h>
     24 #include <ui/Region.h>
     25 #include <ui/Transform.h>
     26 
     27 namespace android {
     28 
     29 namespace compositionengine::impl {
     30 
     31 struct OutputCompositionState {
     32     // If false, composition will not per performed for this display
     33     bool isEnabled{false};
     34 
     35     // If false, this output is not considered secure
     36     bool isSecure{false};
     37 
     38     // If true, this output displays layers that are internal-only
     39     bool layerStackInternal{false};
     40 
     41     // The layer stack to display on this display
     42     uint32_t layerStackId{~0u};
     43 
     44     // The physical space screen bounds
     45     Rect bounds;
     46 
     47     // The logical to physical transformation to use
     48     ui::Transform transform;
     49 
     50     // The physical orientation of the display, expressed as ui::Transform
     51     // orientation flags.
     52     uint32_t orientation{0};
     53 
     54     // The logical space user visible bounds
     55     Rect frame;
     56 
     57     // The logical space user viewport rectangle
     58     Rect viewport;
     59 
     60     // The physical space scissor rectangle
     61     Rect scissor;
     62 
     63     // If true, RenderEngine filtering should be enabled
     64     bool needsFiltering{false};
     65 
     66     // The logical coordinates for the dirty region for the display.
     67     // dirtyRegion is semi-persistent state. Dirty rectangles are added to it
     68     // by the FE until composition happens, at which point it is cleared.
     69     Region dirtyRegion;
     70 
     71     // The logical coordinates for the undefined region for the display.
     72     // The undefined region is internal to the composition engine. It is
     73     // updated every time the geometry changes.
     74     Region undefinedRegion;
     75 
     76     // True if the last composition frame had visible layers
     77     bool lastCompositionHadVisibleLayers{false};
     78 
     79     // The color transform to apply
     80     android_color_transform_t colorTransform{HAL_COLOR_TRANSFORM_IDENTITY};
     81 
     82     // The color transform matrix to apply, corresponding with colorTransform.
     83     mat4 colorTransformMat;
     84 
     85     // Current active color mode
     86     ui::ColorMode colorMode{ui::ColorMode::NATIVE};
     87 
     88     // Current active render intent
     89     ui::RenderIntent renderIntent{ui::RenderIntent::COLORIMETRIC};
     90 
     91     // Current active dstaspace
     92     ui::Dataspace dataspace{ui::Dataspace::UNKNOWN};
     93 
     94     // Debugging
     95     void dump(std::string& result) const;
     96 };
     97 
     98 } // namespace compositionengine::impl
     99 } // namespace android
    100