mirror of
git://nv-tegra.nvidia.com/tegra/nv-sci-src/nvsci_samples.git
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a3f1b7ea33
2eba699906039d6615aae4967f6ea79bfe44a40a - event_sample_app/block_pool.c f3abb0a884f0647204ad32ff51255c4712e52120 - event_sample_app/Makefile 9ee49033e077ac5c8bf458a04c91dd3dbed9633d - event_sample_app/event_loop.h b33adce6eb1bbc7af23f6c37b6a635479e18a66a - event_sample_app/block_returnsync.c a56041c06b6bc1d3812b72b399d7d78dd7895485 - event_sample_app/block_limiter.c ca34c957759f7a010f0cbbbf9bedc03a2c98092b - event_sample_app/block_c2c.c 8d6d0ec3aa8e374a1d2a5fedc9dd24ff7bbdb731 - event_sample_app/block_multicast.c a76149a2531899e35843d939f60ad8979d8cf65f - event_sample_app/block_consumer_uc1.c 9da8763e4af4b4b7278507a3ebfe2c68a7a24585 - event_sample_app/util.h 2bf7e1383d6e8913c9b0a6a8bdd48fe63d8098d0 - event_sample_app/block_producer_uc1.c a54abf82eaa2d888e379ab4596ba68ce264e80b5 - event_sample_app/block_info.h 080a6efe263be076c7046e70e31098c2bbed0f6d - event_sample_app/block_presentsync.c 7dd10e5ea71f0c4a09bbe1f9f148f67a13ee098c - event_sample_app/util.c bc1a6f9017b28e5707c166a658a35e6b3986fdf4 - event_sample_app/usecase1.h 317f43efc59638bf1eae8303f0c79eafb059241a - event_sample_app/block_ipc.c 40361c8f0b68f7d5207db2466ce08c19c0bf1c90 - event_sample_app/event_loop_service.c efad113d0107e5d8f90146f3102a7c0ed22f1a35 - event_sample_app/event_loop_threads.c 2908615cebcf36330b9850c57e8745bf324867b2 - event_sample_app/block_queue.c 36ed68eca1a7800cf0d94e763c9fc352ee8cda1e - event_sample_app/block_common.c 675f75d61bd0226625a8eaaf0e503c9e976c8d61 - event_sample_app/main.c c3b26619dd07d221e953fc5dc29a50dcb95a8b97 - rawstream/Makefile 1fbb82e2281bb2e168c87fd20903bbed898ca160 - rawstream/rawstream_cuda.c 1d96498fe3c922f143f7e50e0a32b099714060ad - rawstream/rawstream_consumer.c d077dafc9176686f6d081026225325c2a303a60e - rawstream/rawstream_producer.c 54ae655edddda7dcabe22fbf0b27c3f617978851 - rawstream/rawstream.h d5ffeef3c7ad2af6f6f31385db7917b5ef9a7438 - rawstream/rawstream_ipc_linux.c 81e3d6f8ff5252797a7e9e170b74df6255f54f1b - rawstream/rawstream_main.c Change-Id: I0f4e671693eb0addfe8d0e6532cc8f240cb6c778
67 lines
1.7 KiB
C
67 lines
1.7 KiB
C
/*
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* SPDX-FileCopyrightText: Copyright (c) 2021-2024 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
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* SPDX-License-Identifier: LicenseRef-NvidiaProprietary
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*
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* NVIDIA CORPORATION, its affiliates and licensors retain all intellectual
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* property and proprietary rights in and to this material, related
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* documentation and any modifications thereto. Any use, reproduction,
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* disclosure or distribution of this material and related documentation
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* without an express license agreement from NVIDIA CORPORATION or
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* its affiliates is strictly prohibited.
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*/
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/*
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* NvSciStream Event Loop Driven Sample App - utility functions
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*/
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#include "util.h"
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#define CRC32_POLYNOMIAL 0xEDB88320L
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static uint32_t calculateBufferCRC(
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uint32_t count,
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uint32_t crc,
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uint8_t* buffer)
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{
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static uint32_t crcTable[256];
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static int initialized = 0;
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uint32_t i, j, tmp;
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if (!initialized) {
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for (i = 0; i <= 255; i++) {
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tmp = i;
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for (j = 8; j > 0; j--) {
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if (tmp & 1) {
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tmp = (tmp >> 1) ^ CRC32_POLYNOMIAL;
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} else {
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tmp >>= 1;
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}
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}
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crcTable[i] = tmp;
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}
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initialized = 1;
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}
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while (count-- != 0) {
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tmp = (crc >> 8) & 0x00FFFFFFL;
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crc = tmp ^ crcTable[((uint32_t) crc ^ *buffer++) & 0xFF];
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}
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return crc;
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}
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uint32_t generateCRC(
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uint8_t *data_ptr,
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uint32_t height,
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uint32_t width,
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uint32_t pitch)
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{
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uint32_t y = 0U;
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uint32_t crc = 0U;
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for (y = 0U; y < height; y++) {
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crc = calculateBufferCRC(width, crc, data_ptr);
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data_ptr += pitch;
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}
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return crc;
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}
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