Atlas - SDL_systime.c
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[FILE BEGIN]
1/*
2  Simple DirectMedia Layer
3  Copyright (C) 1997-2025 Sam Lantinga <[email protected]>
4
5  This software is provided 'as-is', without any express or implied
6  warranty.  In no event will the authors be held liable for any damages
7  arising from the use of this software.
8
9  Permission is granted to anyone to use this software for any purpose,
10  including commercial applications, and to alter it and redistribute it
11  freely, subject to the following restrictions:
12
13  1. The origin of this software must not be misrepresented; you must not
14     claim that you wrote the original software. If you use this software
15     in a product, an acknowledgment in the product documentation would be
16     appreciated but is not required.
17  2. Altered source versions must be plainly marked as such, and must not be
18     misrepresented as being the original software.
19  3. This notice may not be removed or altered from any source distribution.
20*/
21#include "SDL_internal.h"
22
23#ifdef SDL_TIME_PSP
24
25#include <psptypes.h>
26#include <psprtc.h>
27#include <psputility_sysparam.h>
28
29#include "../SDL_time_c.h"
30
31// Sony seems to use 0001-01-01T00:00:00 as an epoch.
32#define DELTA_EPOCH_0001_OFFSET 62135596800ULL
33
34void SDL_GetSystemTimeLocalePreferences(SDL_DateFormat *df, SDL_TimeFormat *tf)
35{
36    int val;
37
38    if (df && sceUtilityGetSystemParamInt(PSP_SYSTEMPARAM_ID_INT_DATE_FORMAT, &val) == 0) {
39        switch (val) {
40        case PSP_SYSTEMPARAM_DATE_FORMAT_YYYYMMDD:
41            *df = SDL_DATE_FORMAT_YYYYMMDD;
42            break;
43        case PSP_SYSTEMPARAM_DATE_FORMAT_MMDDYYYY:
44            *df = SDL_DATE_FORMAT_MMDDYYYY;
45            break;
46        case PSP_SYSTEMPARAM_DATE_FORMAT_DDMMYYYY:
47            *df = SDL_DATE_FORMAT_DDMMYYYY;
48            break;
49        default:
50            break;
51        }
52    }
53
54    if (tf && sceUtilityGetSystemParamInt(PSP_SYSTEMPARAM_ID_INT_TIME_FORMAT, &val) == 0) {
55        switch (val) {
56        case PSP_SYSTEMPARAM_TIME_FORMAT_24HR:
57            *tf = SDL_TIME_FORMAT_24HR;
58            break;
59        case PSP_SYSTEMPARAM_TIME_FORMAT_12HR:
60            *tf = SDL_TIME_FORMAT_12HR;
61            break;
62        default:
63            break;
64        }
65    }
66}
67
68bool SDL_GetCurrentTime(SDL_Time *ticks)
69{
70    u64 sceTicks;
71
72    CHECK_PARAM(!ticks) {
73        return SDL_InvalidParamError("ticks");
74    }
75
76    const int ret = sceRtcGetCurrentTick(&sceTicks);
77    if (!ret) {
78        const u32 res = sceRtcGetTickResolution();
79        const u32 div = SDL_NS_PER_SECOND / res;
80        const Uint64 epoch_offset = DELTA_EPOCH_0001_OFFSET * res;
81
82        const Uint64 scetime_min = (Uint64)((SDL_MIN_TIME / div) + epoch_offset);
83        const Uint64 scetime_max = (Uint64)((SDL_MAX_TIME / div) + epoch_offset);
84
85        // Clamp to the valid SDL_Time range.
86        sceTicks = SDL_clamp(sceTicks, scetime_min, scetime_max);
87
88        *ticks = (SDL_Time)(sceTicks - epoch_offset) * div;
89
90        return true;
91    }
92
93    return SDL_SetError("Failed to retrieve system time (%i)", ret);
94}
95
96bool SDL_TimeToDateTime(SDL_Time ticks, SDL_DateTime *dt, bool localTime)
97{
98    ScePspDateTime t;
99    u64 local;
100    int ret = 0;
101
102    CHECK_PARAM(!dt) {
103        return SDL_InvalidParamError("dt");
104    }
105
106    const u32 res = sceRtcGetTickResolution();
107    const u32 div = (SDL_NS_PER_SECOND / res);
108    const u64 sceTicks = (u64)((ticks / div) + (DELTA_EPOCH_0001_OFFSET * div));
109
110    if (localTime) {
111        ret = sceRtcConvertUtcToLocalTime(&sceTicks, &local);
112    } else {
113        local = sceTicks;
114    }
115
116    if (!ret) {
117        ret = sceRtcSetTick(&t, &local);
118        if (!ret) {
119            dt->year = t.year;
120            dt->month = t.month;
121            dt->day = t.day;
122            dt->hour = t.hour;
123            dt->minute = t.minute;
124            dt->second = t.second;
125            dt->nanosecond = ticks % SDL_NS_PER_SECOND;
126            dt->utc_offset = (int)(((Sint64)local - (Sint64)sceTicks) / (Sint64)res);
127
128            SDL_CivilToDays(dt->year, dt->month, dt->day, &dt->day_of_week, NULL);
129
130            return true;
131        }
132    }
133
134    return SDL_SetError("Local time conversion failed (%i)", ret);
135}
136
137#endif // SDL_TIME_PSP
138
[FILE END]
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