Function parseGPUConfigFile

Common_3/Graphics/GraphicsConfig.cpp:1049–1250

}

void parseGPUConfigFile(ExtendedSettings* pExtendedSettings, uint32_t preferedGpuId)
{
    FileStream fh = {};
    if (!fsOpenStreamFromPath(RD_GPU_CONFIG, "gpu.cfg", FM_READ, &fh))
    {
        LOGF(LogLevel::eERROR, "Failed to open gpu.cfg file. Function %s failed with error: %s", FS_ERR_CTX.func,
             getFSErrCodeString(FS_ERR_CTX.code));
        LOGF(LogLevel::eWARNING, "Setting first gpu found as active gpu.");
        return;
    }
    ConfigParsingStatus parsingStatus = ConfigParsingStatus::CONFIG_PARSE_NONE;
    char                currentLineStr[1024] = {};
    gGraphicsConfigRules.mDriverRejectionRules =
        (DriverRejectionRule*)tf_malloc(MAXIMUM_GPU_CONFIGURATION_RULES * sizeof(DriverRejectionRule));
    gGraphicsConfigRules.mGPUConfigurationRulesCount = 0;
    gGraphicsConfigRules.mDriverRejectionRulesCount = 0;
    gGraphicsConfigRules.mGPUSelectionRulesCount = 0;
    gGraphicsConfigRules.mTextureSupportRulesCount = 0;
    gGraphicsConfigRules.mExtendedConfigurationRulesCount = 0;

    size_t fileSize = fsGetStreamFileSize(&fh);
    char*  fileBuffer = (char*)tf_malloc(fileSize * sizeof(char));
    fsReadFromStream(&fh, fileBuffer, fileSize);
    char* fileCursor = fileBuffer;
    char* fileEnd = fileBuffer + fileSize;
    while (bufferedGetLine(currentLineStr, &fileCursor, fileEnd))
    {
        char*       lineCursor = currentLineStr;
        // skip spaces, empty line and comments
        size_t      ruleLength = strcspn(lineCursor, "#");
        const char* pLineEnd = lineCursor + ruleLength;
        while (currentLineStr != pLineEnd && isspace(*lineCursor))
            ++lineCursor;
        if (lineCursor == pLineEnd)
            continue;

        // parse configuration rules and settings
        switch (parsingStatus)
        {
        case ConfigParsingStatus::CONFIG_PARSE_NONE:
            if (strcmp(currentLineStr, "BEGIN_GPU_SELECTION;") == 0)
            {
                parsingStatus = ConfigParsingStatus::CONFIG_PARSE_SELECTION_RULE;
            }
            else if (strcmp(currentLineStr, "BEGIN_DRIVER_REJECTION;") == 0)
            {
                parsingStatus = ConfigParsingStatus::CONFIG_PARSE_DRIVER_REJECTION;
            }
            else if (strcmp(currentLineStr, "BEGIN_GPU_SETTINGS;") == 0)
            {
                parsingStatus = ConfigParsingStatus::CONFIG_PARSE_GPU_CONFIGURATION;
            }
            else if (strcmp(currentLineStr, "BEGIN_TEXTURE_FORMAT;") == 0)
            {
                parsingStatus = ConfigParsingStatus::CONFIG_PARSE_TEXTURE_FORMAT;
            }
            else if (strcmp(currentLineStr, "BEGIN_RESOLUTION_SETTINGS;") == 0)
            {