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git://nv-tegra.nvidia.com/tegra/nv-sci-src/nvsci_samples.git
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5d1819bced
8193be73ce0a488f62034cb87083cdf09f52cd5d - event_sample_app/block_pool.c a0bd135d707994a41ed3a4234b5f875a268fed4d - event_sample_app/Makefile 44f6de348f8bdd5cb584b3e8cc4b05e9482dddd2 - event_sample_app/event_loop.h 6ff0f1c2d7ef2e2fa9ece6fdc850b58b87207526 - event_sample_app/block_returnsync.c 1158201e78094e9e866fa99095c9ffc2ec9f5a27 - event_sample_app/block_limiter.c f5e2aea98ba9264ee1068a700222dff8d5d5c7a4 - event_sample_app/block_c2c.c ef057870dade9af70656b37340e9bcad35d49380 - event_sample_app/block_multicast.c 641e3634da873970b574b23a1024b2e7155b88ff - event_sample_app/block_consumer_uc1.c ced622a41d1a48dcb23e6a1a02ae9640ef9b837c - event_sample_app/util.h 3a1013021a572887303fb6db245b5b01fe07e9a0 - event_sample_app/block_producer_uc1.c dac99c442185b020fbdae07bfc1e7df78343eb83 - event_sample_app/block_info.h b5dd68bec3ae6f9049aad1cb5a86c3db4af02e17 - event_sample_app/block_presentsync.c e0861e9fe5d160d47d758464146d7192f9c70a5f - event_sample_app/util.c d7e42e2b6088ff4596abc7256eb018d757a4021e - event_sample_app/usecase1.h 65ffe5af6ae6bc0418f348167c473849d4697e47 - event_sample_app/block_ipc.c b52e34443ac441a9df48029de944aa0a50d1b101 - event_sample_app/event_loop_service.c 5001f036389a4f7952cb4974dd3323908208ca30 - event_sample_app/event_loop_threads.c a71ed037f9d77d0944f40f54cf25db8180d007e2 - event_sample_app/block_queue.c d6bbd17599543f1760d87851150a12a2a842a24d - event_sample_app/block_common.c 40f949c4c37ab4aa4a84182b345f3de6fceab39b - event_sample_app/main.c 458833ab233a725c067bf9b1fc60ef39872eee80 - rawstream/Makefile 1fbb82e2281bb2e168c87fd20903bbed898ca160 - rawstream/rawstream_cuda.c e26c09f1ad1a3a7d2c29dae1b38d3fd90c23af6e - rawstream/rawstream_consumer.c 2bed038ca070aa5dccd6b672a98f093340e829bb - rawstream/rawstream_producer.c 3df4e5c00a3dc002ee9877e282bd28ffa87fa6f0 - rawstream/rawstream.h d5ffeef3c7ad2af6f6f31385db7917b5ef9a7438 - rawstream/rawstream_ipc_linux.c f28c1cd5fe26b6dc5930d5556b54364c9b91767c - rawstream/rawstream_main.c Change-Id: I938f32e9d8445019e4585b3076bc6cac860f8a0f
63 lines
1.6 KiB
C
63 lines
1.6 KiB
C
/* NvSciStream Event Loop Driven Sample App - utility functions
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*
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* Copyright (c) 2021-2023 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
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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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#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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