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/*
* 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 <cutils/log.h>
#include <inttypes.h>
#include <vector>
#include <array>
#include "hwc2.h"
uint64_t hwc2_display::display_cnt = 0;
hwc2_display::hwc2_display(hwc2_display_t id, int adf_intf_fd,
const struct adf_device &adf_dev, hwc2_connection_t connection,
hwc2_display_type_t type)
: id(id),
connection(connection),
type(type),
configs(),
active_config(0),
adf_intf_fd(adf_intf_fd),
adf_dev(adf_dev) { }
hwc2_display::~hwc2_display()
{
close(adf_intf_fd);
adf_device_close(&adf_dev);
}
hwc2_error_t hwc2_display::set_connection(hwc2_connection_t connection)
{
if (connection == HWC2_CONNECTION_INVALID) {
ALOGE("dpy %" PRIu64 ": invalid connection", id);
return HWC2_ERROR_BAD_PARAMETER;
}
this->connection = connection;
return HWC2_ERROR_NONE;
}
int hwc2_display::retrieve_display_configs(struct adf_hwc_helper *adf_helper)
{
size_t num_configs = 0;
int ret = adf_getDisplayConfigs(adf_helper, id, nullptr, &num_configs);
if (ret < 0 || num_configs == 0) {
ALOGE("dpy %" PRIu64 ": failed to get display configs: %s", id,
strerror(ret));
return ret;
}
std::vector<uint32_t> config_handles(num_configs);
ret = adf_getDisplayConfigs(adf_helper, id, config_handles.data(),
&num_configs);
if (ret < 0) {
ALOGE("dpy %" PRIu64 ": failed to get display configs: %s", id,
strerror(ret));
return ret;
}
active_config = config_handles[0];
std::array<uint32_t, 6> attributes = {{
HWC2_ATTRIBUTE_WIDTH,
HWC2_ATTRIBUTE_HEIGHT,
HWC2_ATTRIBUTE_VSYNC_PERIOD,
HWC2_ATTRIBUTE_DPI_X,
HWC2_ATTRIBUTE_DPI_Y,
HWC2_ATTRIBUTE_INVALID }};
std::array<int32_t, 5> values;
for (auto config_handle: config_handles) {
ret = adf_getDisplayAttributes_v2(adf_helper, id, config_handle,
attributes.data(), values.data());
if (ret < 0) {
ALOGW("dpy %" PRIu64 ": failed to get display attributes for config"
" %u: %s", id, config_handle, strerror(ret));
continue;
}
configs.emplace(config_handle, hwc2_config());
for (size_t attr = 0; attr < attributes.size() - 1; attr++) {
ret = configs[config_handle].set_attribute(
static_cast<hwc2_attribute_t>(attributes[attr]),
values[attr]);
if (ret < 0)
ALOGW("dpy %" PRIu64 ": failed to set attribute", id);
}
}
return ret;
}
hwc2_display_t hwc2_display::get_next_id()
{
return display_cnt++;
}
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