fastfetch/src/modules/display/display.c

#include "common/printing.h"
#include "common/jsonconfig.h"
#include "detection/displayserver/displayserver.h"
#include "modules/display/display.h"
#include "util/stringUtils.h"

#define FF_DISPLAY_NUM_FORMAT_ARGS 8

void ffPrintDisplay(FFDisplayOptions* options)
{
    const FFDisplayServerResult* dsResult = ffConnectDisplayServer();

    if(dsResult->displays.length == 0)
    {
        ffPrintError(FF_DISPLAY_MODULE_NAME, 0, &options->moduleArgs, "Couldn't detect display");
        return;
    }

    if (options->compactType != FF_DISPLAY_COMPACT_TYPE_NONE)
    {
        ffPrintLogoAndKey(FF_DISPLAY_MODULE_NAME, 0, &options->moduleArgs, FF_PRINT_TYPE_DEFAULT);

        int index = 0;
        FF_LIST_FOR_EACH(FFDisplayResult, result, dsResult->displays)
        {
            if (options->compactType & FF_DISPLAY_COMPACT_TYPE_ORIGINAL_BIT)
            {
                if (index++) putchar(' ');
                printf("%ix%i", result->width, result->height);
            }
            if (options->compactType & FF_DISPLAY_COMPACT_TYPE_SCALED_BIT)
            {
                if (index++) putchar(' ');
                printf("%ix%i", result->scaledWidth, result->scaledHeight);
            }
        }
        putchar('\n');
        return;
    }

    FF_STRBUF_AUTO_DESTROY key = ffStrbufCreate();

    for(uint32_t i = 0; i < dsResult->displays.length; i++)
    {
        FFDisplayResult* result = ffListGet(&dsResult->displays, i);
        uint32_t moduleIndex = dsResult->displays.length == 1 ? 0 : i + 1;
        const char* displayType = result->type == FF_DISPLAY_TYPE_UNKNOWN ? NULL : result->type == FF_DISPLAY_TYPE_BUILTIN ? "built-in" : "external";

        ffStrbufClear(&key);
        if(options->moduleArgs.key.length == 0)
        {
            const char* subkey = result->name.length ? result->name.chars : displayType;
            if (subkey)
                ffStrbufAppendF(&key, "%s (%s)", FF_DISPLAY_MODULE_NAME, subkey);
            else if (moduleIndex > 0)
                ffStrbufAppendF(&key, "%s (%d)", FF_DISPLAY_MODULE_NAME, moduleIndex);
            else
                ffStrbufAppendS(&key, FF_DISPLAY_MODULE_NAME);
        }
        else
        {
            ffParseFormatString(&key, &options->moduleArgs.key, 3, (FFformatarg[]){
                {FF_FORMAT_ARG_TYPE_UINT, &moduleIndex},
                {FF_FORMAT_ARG_TYPE_STRBUF, &result->name},
                {FF_FORMAT_ARG_TYPE_STRING, displayType},
            });
        }

        if(options->moduleArgs.outputFormat.length == 0)
        {
            ffPrintLogoAndKey(key.chars, 0, &options->moduleArgs, FF_PRINT_TYPE_NO_CUSTOM_KEY);

            printf("%ix%i", result->width, result->height);

            if(result->refreshRate > 0)
            {
                if(options->preciseRefreshRate)
                    printf(" @ %gHz", ((int) (result->refreshRate * 1000 + 0.5)) / 1000.0);
                else
                    printf(" @ %iHz", (uint32_t) (result->refreshRate + 0.5));
            }

            if(
                result->scaledWidth > 0 && result->scaledWidth != result->width &&
                result->scaledHeight > 0 && result->scaledHeight != result->height)
                printf(" (as %ix%i)", result->scaledWidth, result->scaledHeight);

            if(result->type != FF_DISPLAY_TYPE_UNKNOWN)
                fputs(result->type == FF_DISPLAY_TYPE_BUILTIN ? " [Built-in]" : " [External]", stdout);

            if(moduleIndex > 0 && result->primary)
                printf(" *");

            putchar('\n');
        }
        else
        {
            ffPrintFormatString(key.chars, 0, &options->moduleArgs, FF_PRINT_TYPE_NO_CUSTOM_KEY, FF_DISPLAY_NUM_FORMAT_ARGS, (FFformatarg[]) {
                {FF_FORMAT_ARG_TYPE_UINT, &result->width},
                {FF_FORMAT_ARG_TYPE_UINT, &result->height},
                {FF_FORMAT_ARG_TYPE_DOUBLE, &result->refreshRate},
                {FF_FORMAT_ARG_TYPE_UINT, &result->scaledWidth},
                {FF_FORMAT_ARG_TYPE_UINT, &result->scaledHeight},
                {FF_FORMAT_ARG_TYPE_STRBUF, &result->name},
                {FF_FORMAT_ARG_TYPE_STRING, displayType},
                {FF_FORMAT_ARG_TYPE_UINT, &result->rotation},
                {FF_FORMAT_ARG_TYPE_BOOL, &result->primary},
            });
        }
    }
}

void ffInitDisplayOptions(FFDisplayOptions* options)
{
    ffOptionInitModuleBaseInfo(&options->moduleInfo, FF_DISPLAY_MODULE_NAME, ffParseDisplayCommandOptions, ffParseDisplayJsonObject, ffPrintDisplay, ffGenerateDisplayJson, ffPrintDisplayHelpFormat);
    ffOptionInitModuleArg(&options->moduleArgs);
    options->compactType = FF_DISPLAY_COMPACT_TYPE_NONE;
    options->preciseRefreshRate = false;
}

bool ffParseDisplayCommandOptions(FFDisplayOptions* options, const char* key, const char* value)
{
    const char* subKey = ffOptionTestPrefix(key, FF_DISPLAY_MODULE_NAME);
    if (!subKey) return false;
    if (ffOptionParseModuleArgs(key, subKey, value, &options->moduleArgs))
        return true;

    if (ffStrEqualsIgnCase(subKey, "compact-type"))
    {
        options->compactType = (FFDisplayCompactType) ffOptionParseEnum(key, value, (FFKeyValuePair[]) {
            { "none", FF_DISPLAY_COMPACT_TYPE_NONE },
            { "original", FF_DISPLAY_COMPACT_TYPE_ORIGINAL_BIT },
            { "scaled", FF_DISPLAY_COMPACT_TYPE_SCALED_BIT },
            {},
        });
        return true;
    }

    if (ffStrEqualsIgnCase(subKey, "precise-refresh-rate"))
    {
        options->preciseRefreshRate = ffOptionParseBoolean(value);
        return true;
    }

    return false;
}

void ffDestroyDisplayOptions(FFDisplayOptions* options)
{
    ffOptionDestroyModuleArg(&options->moduleArgs);
}

void ffParseDisplayJsonObject(FFDisplayOptions* options, yyjson_val* module)
{
    yyjson_val *key_, *val;
    size_t idx, max;
    yyjson_obj_foreach(module, idx, max, key_, val)
    {
        const char* key = yyjson_get_str(key_);
        if(ffStrEqualsIgnCase(key, "type"))
            continue;

        if (ffJsonConfigParseModuleArgs(key, val, &options->moduleArgs))
            continue;

        if (ffStrEqualsIgnCase(key, "compactType"))
        {
            int value;
            const char* error = ffJsonConfigParseEnum(val, &value, (FFKeyValuePair[]) {
                { "none", FF_DISPLAY_COMPACT_TYPE_NONE },
                { "original", FF_DISPLAY_COMPACT_TYPE_ORIGINAL_BIT },
                { "scaled", FF_DISPLAY_COMPACT_TYPE_SCALED_BIT },
                {},
            });
            if (error)
                ffPrintError(FF_DISPLAY_MODULE_NAME, 0, &options->moduleArgs, "Invalid %s value: %s", key, error);
            else
                options->compactType = (FFDisplayCompactType) value;
            continue;
        }

        if (ffStrEqualsIgnCase(key, "preciseRefreshRate"))
        {
            options->preciseRefreshRate = yyjson_get_bool(val);
            continue;
        }

        ffPrintError(FF_DISPLAY_MODULE_NAME, 0, &options->moduleArgs, "Unknown JSON key %s", key);
    }
}

void ffGenerateDisplayJson(FF_MAYBE_UNUSED FFDisplayOptions* options, yyjson_mut_doc* doc, yyjson_mut_val* module)
{
    const FFDisplayServerResult* dsResult = ffConnectDisplayServer();

    if(dsResult->displays.length == 0)
    {
        yyjson_mut_obj_add_str(doc, module, "error", "Couldn't detect display");
        return;
    }
    yyjson_mut_val* arr = yyjson_mut_obj_add_arr(doc, module, "result");
    FF_LIST_FOR_EACH(FFDisplayResult, item, dsResult->displays)
    {
        yyjson_mut_val* obj = yyjson_mut_arr_add_obj(doc, arr);
        yyjson_mut_obj_add_uint(doc, obj, "width", item->width);
        yyjson_mut_obj_add_uint(doc, obj, "height", item->height);
        yyjson_mut_obj_add_uint(doc, obj, "id", item->id);
        yyjson_mut_obj_add_strbuf(doc, obj, "name", &item->name);
        yyjson_mut_obj_add_bool(doc, obj, "primary", item->primary);
        yyjson_mut_obj_add_real(doc, obj, "refreshRate", item->refreshRate);
        yyjson_mut_obj_add_uint(doc, obj, "rotation", item->rotation);
        yyjson_mut_obj_add_uint(doc, obj, "scaledHeight", item->scaledHeight);
        yyjson_mut_obj_add_uint(doc, obj, "scaledWidth", item->scaledWidth);
        switch (item->type)
        {
            case FF_DISPLAY_TYPE_BUILTIN:
                yyjson_mut_obj_add_str(doc, obj, "type", "Builtin");
                break;
            case FF_DISPLAY_TYPE_EXTERNAL:
                yyjson_mut_obj_add_str(doc, obj, "type", "External");
                break;
            default:
                yyjson_mut_obj_add_str(doc, obj, "type", "Unknown");
                break;
        }
    }
}

void ffPrintDisplayHelpFormat(void)
{
    ffPrintModuleFormatHelp(FF_DISPLAY_MODULE_NAME, "{1}x{2} @ {3}Hz (as {4}x{5}) [{7}]", FF_DISPLAY_NUM_FORMAT_ARGS, (const char* []) {
        "Screen width (in pixels)",
        "Screen height (in pixels)",
        "Screen refresh rate (in Hz)",
        "Screen scaled width (in pixels)",
        "Screen scaled height (in pixels)",
        "Screen name",
        "Screen type (builtin, external or unknown)",
        "Screen rotation (in degrees)",
    });
}