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/*
* Copyright 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.
*/
#ifndef HDR_PLUS_CLIENT_UTILS_H
#define HDR_PLUS_CLIENT_UTILS_H
#include <utils/Errors.h>
#include "HdrPlusTypes.h"
namespace android {
namespace hdrplus_client_utils {
/*
* Write the image buffer to a .ppm file.
*
* filename is the filename of the .ppm file and should include ".ppm" in the end.
* streamConfig is the stream configuration of the buffer.
* buffer is the buffer to be saved to a .ppm file.
*
* Returns
* OK: if the file is saved successfully.
* BAD_VALUE: if the format is not support or the stream configuration is invalid.
* NO_INIT: if it failed to open the file.
*/
status_t writePpm(const std::string &filename, const pbcamera::StreamConfiguration &streamConfig,
const pbcamera::StreamBuffer &buffer);
/*
* Compare the image buffer against a golden .ppm file.
*
* filename is the filename of the .ppm file and should include ".ppm" in the end.
* streamConfig is the stream configuration of the buffer.
* buffer is the buffer to be compared.
* diffRatio will be the difference ratio between the image buffer and the golden ppm file.
* It's calculated as sum(R, G, B diffs in each pixel) / (width * height * 256 * 3)
*
* Returns
* OK: if the comparison completed successfully.
* BAD_VALUE: if the format is not support or the stream configuration is invalid, or the
* file cannot be parsed correctly.
* NO_INIT: if it failed to open the file.
*/
status_t comparePpm(const std::string &filename, const pbcamera::StreamConfiguration &streamConfig,
const pbcamera::StreamBuffer &buffer, float *diffRatio);
} // hdrplus_client_utils
} // namespace android
#endif // HDR_PLUS_CLIENT_UTILS_H
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