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106 lines
4.0 KiB
106 lines
4.0 KiB
/*
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* Copyright (c) 2019, The Linux Foundation. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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* * Neither the name of The Linux Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
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* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <drm/drm_fourcc.h>
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#include <drm_utils.h>
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#include <regex>
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#include <sstream>
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#include <sstream>
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#include <string>
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#include <string>
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#include <utility>
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#include <vector>
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using std::string;
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using std::stringstream;
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using std::regex;
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using std::pair;
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using std::vector;
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namespace sde_drm {
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void ParseFormats(const string &line, vector<pair<uint32_t, uint64_t>> *formats) {
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// Match fourcc strings like RA24 or those with modifier like RA24/5/1. The
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// digit after first / is vendor code, the digit after second / is modifier
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// code.
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regex exp_base("[[:alnum:]]{4}(/[[:digit:]]/([[:digit:]]){1,3})?");
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regex exp_modifier("[[:alnum:]]{4}(/[[:digit:]]/([[:digit:]]){1,3})");
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string tmp_line = line;
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std::smatch str_match; // Resultant match
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while (std::regex_search(tmp_line, str_match, exp_base)) { //clang_sa_ignore[core.CallAndMessage]
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string matched_sub_str = str_match.str();
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string final_format_str = {};
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uint64_t modifier = 0;
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if (std::regex_match(matched_sub_str, exp_modifier)) { //clang_sa_ignore[core.CallAndMessage]
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// Here we try to parse formats with vendor code and modifier like
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// RA24/5/1
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// Extract base format string
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final_format_str = matched_sub_str.substr(0, matched_sub_str.find("/"));
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// Match vendor code
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string vendor_sub_str = matched_sub_str.substr(matched_sub_str.find("/") + 1);
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uint64_t vendor_code = std::stoi(vendor_sub_str);
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// Match modifier
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uint64_t fmt_modifier = std::stoi(vendor_sub_str.substr(vendor_sub_str.find("/") + 1));
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if (vendor_code == DRM_FORMAT_MOD_VENDOR_QCOM) {
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// Macro from drm_fourcc.h to form modifier
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modifier = fourcc_mod_code(QCOM, fmt_modifier);
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}
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} else {
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final_format_str = matched_sub_str.c_str();
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}
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// fourcc_code is a macro from drm_fourcc.h to form the format from 4 characters (thus fourcc)
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formats->push_back(std::make_pair(fourcc_code(final_format_str.at(0), final_format_str.at(1),
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final_format_str.at(2), final_format_str.at(3)),
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modifier));
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tmp_line = str_match.suffix();
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}
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}
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void Tokenize(const std::string &str, std::vector<std::string> *tokens, char delim) {
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size_t pos = 0;
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std::string str_temp(str);
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while ((pos = str_temp.find(delim)) != std::string::npos && delim != ' ') {
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str_temp.replace(pos, 1, 1, ' ');
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}
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std::stringstream ss(str_temp);
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while (ss >> str_temp) {
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tokens->push_back(str_temp);
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}
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}
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} // namespace sde_drm
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