hwc2/hwc2_layer.cpp

/*
 * Copyright (C) 2016 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.
 */

#include <inttypes.h>
#include <cutils/log.h>

#include "hwc2.h"

uint64_t hwc2_layer::layer_cnt = 0;

hwc2_layer::hwc2_layer(hwc2_layer_t id)
    : id(id),
      buffer(),
      comp_type(HWC2_COMPOSITION_INVALID) { }

hwc2_error_t hwc2_layer::set_comp_type(hwc2_composition_t comp_type)
{
    hwc2_error_t ret = HWC2_ERROR_NONE;

    switch (comp_type) {
    case HWC2_COMPOSITION_CLIENT:
    case HWC2_COMPOSITION_DEVICE:
    case HWC2_COMPOSITION_CURSOR:
    case HWC2_COMPOSITION_SOLID_COLOR:
        break;

    case HWC2_COMPOSITION_SIDEBAND:
        ret = HWC2_ERROR_UNSUPPORTED;
        break;

    case HWC2_COMPOSITION_INVALID:
    default:
        ALOGE("lyr %" PRIu64 ": invalid composition type %u", id, comp_type);
        ret = HWC2_ERROR_BAD_PARAMETER;
    }

    this->comp_type = comp_type;
    return ret;
}

hwc2_error_t hwc2_layer::set_buffer(buffer_handle_t handle, int32_t acquire_fence)
{
    if (comp_type == HWC2_COMPOSITION_SOLID_COLOR
            || comp_type == HWC2_COMPOSITION_SIDEBAND
            || comp_type == HWC2_COMPOSITION_CLIENT) {
        return HWC2_ERROR_NONE;
    }

    if (!handle) {
        ALOGE("lyr %" PRIu64 ": layer buffers cannot be null", id);
        return HWC2_ERROR_BAD_PARAMETER;
    }

    return buffer.set_buffer(handle, acquire_fence);
}

hwc2_error_t hwc2_layer::set_dataspace(android_dataspace_t dataspace)
{
    return buffer.set_dataspace(dataspace);
}

hwc2_error_t hwc2_layer::set_display_frame(const hwc_rect_t &display_frame)
{
    return buffer.set_display_frame(display_frame);
}

hwc2_error_t hwc2_layer::set_source_crop(const hwc_frect_t &source_crop)
{
    return buffer.set_source_crop(source_crop);
}

hwc2_error_t hwc2_layer::set_z_order(uint32_t z_order)
{
    return buffer.set_z_order(z_order);
}

hwc2_error_t hwc2_layer::set_surface_damage(const hwc_region_t &surface_damage)
{
    return buffer.set_surface_damage(surface_damage);
}

hwc2_error_t hwc2_layer::set_blend_mode(hwc2_blend_mode_t blend_mode)
{
    return buffer.set_blend_mode(blend_mode);
}

hwc2_error_t hwc2_layer::set_plane_alpha(float plane_alpha)
{
    return buffer.set_plane_alpha(plane_alpha);
}

hwc2_error_t hwc2_layer::set_transform(const hwc_transform_t transform)
{
    return buffer.set_transform(transform);
}

hwc2_layer_t hwc2_layer::get_next_id()
{
    return layer_cnt++;
}