/*
 * Copyright (C) 2021 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.
 */

syntax = "proto3";
option optimize_for = LITE_RUNTIME;

import "frameworks/native/services/surfaceflinger/layerproto/common.proto";

package android.surfaceflinger.proto;

/* Represents a file full of surface flinger transactions.
   Encoded, it should start with 0x54 0x4E 0x58 0x54 0x52 0x41 0x43 0x45 (.TNXTRACE), such
   that they can be easily identified. */
message TransactionTraceFile {
    /* constant; MAGIC_NUMBER = (long) MAGIC_NUMBER_H << 32 | MagicNumber.MAGIC_NUMBER_L
       (this is needed because enums have to be 32 bits and there's no nice way to put 64bit
        constants into .proto files. */
    enum MagicNumber {
        INVALID = 0;
        MAGIC_NUMBER_L = 0x54584E54; /* TNXT (little-endian ASCII) */
        MAGIC_NUMBER_H = 0x45434152; /* RACE (little-endian ASCII) */
    }

    fixed64 magic_number = 1; /* Must be the first field, set to value in MagicNumber */
    repeated TransactionTraceEntry entry = 2;
}

message TransactionTraceEntry {
    int64 elapsed_realtime_nanos = 1;
    int64 vsync_id = 2;
    repeated TransactionState transactions = 3;
    repeated LayerCreationArgs added_layers = 4;
    repeated int32 removed_layers = 5;
    repeated DisplayState added_displays = 6;
    repeated int32 removed_displays = 7;
    repeated int32 removed_layer_handles = 8;
}

message LayerCreationArgs {
    int32 layer_id = 1;
    string name = 2;
    uint32 flags = 3;
    int32 parent_id = 4;
    int32 mirror_from_id = 5;
}

message TransactionState {
    int32 pid = 1;
    int32 uid = 2;
    int64 vsync_id = 3;
    int32 input_event_id = 4;
    int64 post_time = 5;
    uint64 transaction_id = 6;
    repeated LayerState layer_changes = 7;
    repeated DisplayState display_changes = 8;
}

// Keep insync with layer_state_t
message LayerState {
    int64 layer_id = 1;
    // Changes are split into ChangesLsb and ChangesMsb. First 32 bits are in ChangesLsb
    // and the next 32 bits are in ChangesMsb. This is needed because enums have to be
    // 32 bits and there's no nice way to put 64bit constants into .proto files.
    enum ChangesLsb {
        eChangesLsbNone = 0;
        ePositionChanged = 0x00000001;
        eLayerChanged = 0x00000002;
        eSizeChanged = 0x00000004;
        eAlphaChanged = 0x00000008;

        eMatrixChanged = 0x00000010;
        eTransparentRegionChanged = 0x00000020;
        eFlagsChanged = 0x00000040;
        eLayerStackChanged = 0x00000080;

        eReleaseBufferListenerChanged = 0x00000400;
        eShadowRadiusChanged = 0x00000800;

        eBufferCropChanged = 0x00002000;
        eRelativeLayerChanged = 0x00004000;
        eReparent = 0x00008000;

        eColorChanged = 0x00010000;
        eDestroySurface = 0x00020000;
        eTransformChanged = 0x00040000;
        eTransformToDisplayInverseChanged = 0x00080000;

        eCropChanged = 0x00100000;
        eBufferChanged = 0x00200000;
        eAcquireFenceChanged = 0x00400000;
        eDataspaceChanged = 0x00800000;

        eHdrMetadataChanged = 0x01000000;
        eSurfaceDamageRegionChanged = 0x02000000;
        eApiChanged = 0x04000000;
        eSidebandStreamChanged = 0x08000000;

        eColorTransformChanged = 0x10000000;
        eHasListenerCallbacksChanged = 0x20000000;
        eInputInfoChanged = 0x40000000;
        eCornerRadiusChanged = -2147483648; // 0x80000000; (proto stores enums as signed int)
    };
    enum ChangesMsb {
        eChangesMsbNone = 0;
        eDestinationFrameChanged = 0x1;
        eCachedBufferChanged = 0x2;
        eBackgroundColorChanged = 0x4;
        eMetadataChanged = 0x8;
        eColorSpaceAgnosticChanged = 0x10;
        eFrameRateSelectionPriority = 0x20;
        eFrameRateChanged = 0x40;
        eBackgroundBlurRadiusChanged = 0x80;
        eProducerDisconnect = 0x100;
        eFixedTransformHintChanged = 0x200;
        eFrameNumberChanged = 0x400;
        eBlurRegionsChanged = 0x800;
        eAutoRefreshChanged = 0x1000;
        eStretchChanged = 0x2000;
        eTrustedOverlayChanged = 0x4000;
        eDropInputModeChanged = 0x8000;
    };
    uint64 what = 2;
    float x = 3;
    float y = 4;
    int32 z = 5;
    uint32 w = 6;
    uint32 h = 7;
    uint32 layer_stack = 8;

    enum Flags {
        eFlagsNone = 0;
        eLayerHidden = 0x01;
        eLayerOpaque = 0x02;
        eLayerSkipScreenshot = 0x40;
        eLayerSecure = 0x80;
        eEnableBackpressure = 0x100;
        eLayerIsDisplayDecoration = 0x200;
    };
    uint32 flags = 9;
    uint32 mask = 10;

    message Matrix22 {
        float dsdx = 1;
        float dtdx = 2;
        float dtdy = 3;
        float dsdy = 4;
    };
    Matrix22 matrix = 11;
    float corner_radius = 12;
    uint32 background_blur_radius = 13;
    int64 parent_id = 14;
    int64 relative_parent_id = 15;

    float alpha = 16;
    message Color3 {
        float r = 1;
        float g = 2;
        float b = 3;
    }
    Color3 color = 17;
    RegionProto transparent_region = 18;
    uint32 transform = 19;
    bool transform_to_display_inverse = 20;
    RectProto crop = 21;

    message BufferData {
        uint64 buffer_id = 1;
        uint32 width = 2;
        uint32 height = 3;
        uint64 frame_number = 4;

        enum BufferDataChange {
            BufferDataChangeNone = 0;
            fenceChanged = 0x01;
            frameNumberChanged = 0x02;
            cachedBufferChanged = 0x04;
        }
        uint32 flags = 5;
        uint64 cached_buffer_id = 6;

        enum PixelFormat {
            PIXEL_FORMAT_UNKNOWN = 0;
            PIXEL_FORMAT_CUSTOM = -4;
            PIXEL_FORMAT_TRANSLUCENT = -3;
            PIXEL_FORMAT_TRANSPARENT = -2;
            PIXEL_FORMAT_OPAQUE = -1;
            PIXEL_FORMAT_RGBA_8888 = 1;
            PIXEL_FORMAT_RGBX_8888 = 2;
            PIXEL_FORMAT_RGB_888 = 3;
            PIXEL_FORMAT_RGB_565 = 4;
            PIXEL_FORMAT_BGRA_8888 = 5;
            PIXEL_FORMAT_RGBA_5551 = 6;
            PIXEL_FORMAT_RGBA_4444 = 7;
            PIXEL_FORMAT_RGBA_FP16 = 22;
            PIXEL_FORMAT_RGBA_1010102 = 43;
            PIXEL_FORMAT_R_8 = 0x38;
        }
        PixelFormat pixel_format = 7;
        uint64 usage = 8;
    }
    BufferData buffer_data = 22;
    int32 api = 23;
    bool has_sideband_stream = 24;
    ColorTransformProto color_transform = 25;
    repeated BlurRegion blur_regions = 26;

    message Transform {
        float dsdx = 1;
        float dtdx = 2;
        float dtdy = 3;
        float dsdy = 4;
        float tx = 5;
        float ty = 6;
    }
    message WindowInfo {
        uint32 layout_params_flags = 1;
        int32 layout_params_type = 2;
        RegionProto touchable_region = 3;
        int32 surface_inset = 4;
        bool focusable = 5;
        bool has_wallpaper = 6;
        float global_scale_factor = 7;
        int64 crop_layer_id = 8;
        bool replace_touchable_region_with_crop = 9;
        RectProto touchable_region_crop = 10;
        Transform transform = 11;
    }
    WindowInfo window_info_handle = 27;
    float bg_color_alpha = 28;
    int32 bg_color_dataspace = 29;
    bool color_space_agnostic = 30;
    float shadow_radius = 31;
    int32 frame_rate_selection_priority = 32;
    float frame_rate = 33;
    int32 frame_rate_compatibility = 34;
    int32 change_frame_rate_strategy = 35;
    uint32 fixed_transform_hint = 36;
    uint64 frame_number = 37;
    bool auto_refresh = 38;
    bool is_trusted_overlay = 39;
    RectProto buffer_crop = 40;
    RectProto destination_frame = 41;

    enum DropInputMode {
        NONE = 0;
        ALL = 1;
        OBSCURED = 2;
    };
    DropInputMode drop_input_mode = 42;
}

message DisplayState {
    enum Changes {
        eChangesNone = 0;
        eSurfaceChanged = 0x01;
        eLayerStackChanged = 0x02;
        eDisplayProjectionChanged = 0x04;
        eDisplaySizeChanged = 0x08;
        eFlagsChanged = 0x10;
    };
    int32 id = 1;
    uint32 what = 2;
    uint32 flags = 3;
    uint32 layer_stack = 4;
    uint32 orientation = 5;
    RectProto layer_stack_space_rect = 6;
    RectProto oriented_display_space_rect = 7;
    uint32 width = 8;
    uint32 height = 9;
}