1 files changed, 123 insertions, 0 deletions

diff --git a/contrib/SDL-3.2.8/src/power/haiku/SDL_syspower.c b/contrib/SDL-3.2.8/src/power/haiku/SDL_syspower.c
new file mode 100644
index 0000000..c334fa6
--- /dev/null
+++ b/contrib/SDL-3.2.8/src/power/haiku/SDL_syspower.c
@@ -0,0 +1,123 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+#include "SDL_internal.h"
+
+// uses BeOS euc.jp apm driver.
+// !!! FIXME: does this thing even work on Haiku?
+
+#ifndef SDL_POWER_DISABLED
+#ifdef SDL_POWER_HAIKU
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <ctype.h>
+#include <drivers/Drivers.h>
+
+// These values are from apm.h ...
+#define APM_DEVICE_PATH           "/dev/misc/apm"
+#define APM_FUNC_OFFSET           0x5300
+#define APM_FUNC_GET_POWER_STATUS 10
+#define APM_DEVICE_ALL            1
+#define APM_BIOS_CALL             (B_DEVICE_OP_CODES_END + 3)
+
+bool SDL_GetPowerInfo_Haiku(SDL_PowerState *state, int *seconds, int *percent)
+{
+    const int fd = open("/dev/misc/apm", O_RDONLY | O_CLOEXEC);
+    bool need_details = false;
+    uint16 regs[6];
+    uint8 ac_status;
+    uint8 battery_status;
+    uint8 battery_flags;
+    uint8 battery_life;
+    uint32 battery_time;
+    int rc;
+
+    if (fd == -1) {
+        return false; // maybe some other method will work?
+    }
+
+    SDL_memset(regs, '\0', sizeof(regs));
+    regs[0] = APM_FUNC_OFFSET + APM_FUNC_GET_POWER_STATUS;
+    regs[1] = APM_DEVICE_ALL;
+    rc = ioctl(fd, APM_BIOS_CALL, regs);
+    close(fd);
+
+    if (rc < 0) {
+        return false;
+    }
+
+    ac_status = regs[1] >> 8;
+    battery_status = regs[1] & 0xFF;
+    battery_flags = regs[2] >> 8;
+    battery_life = regs[2] & 0xFF;
+    battery_time = (uint32)regs[3];
+
+    // in theory, _something_ should be set in battery_flags, right?
+    if (battery_flags == 0x00) { // older APM BIOS? Less fields.
+        battery_time = 0xFFFF;
+        if (battery_status == 0xFF) {
+            battery_flags = 0xFF;
+        } else {
+            battery_flags = (1 << battery_status);
+        }
+    }
+
+    if ((battery_time != 0xFFFF) && (battery_time & (1 << 15))) {
+        // time is in minutes, not seconds
+        battery_time = (battery_time & 0x7FFF) * 60;
+    }
+
+    if (battery_flags == 0xFF) { // unknown state
+        *state = SDL_POWERSTATE_UNKNOWN;
+    } else if (battery_flags & (1 << 7)) { // no battery
+        *state = SDL_POWERSTATE_NO_BATTERY;
+    } else if (battery_flags & (1 << 3)) { // charging
+        *state = SDL_POWERSTATE_CHARGING;
+        need_details = true;
+    } else if (ac_status == 1) {
+        *state = SDL_POWERSTATE_CHARGED; // on AC, not charging.
+        need_details = true;
+    } else {
+        *state = SDL_POWERSTATE_ON_BATTERY; // not on AC.
+        need_details = true;
+    }
+
+    *percent = -1;
+    *seconds = -1;
+    if (need_details) {
+        const int pct = (int)battery_life;
+        const int secs = (int)battery_time;
+
+        if (pct != 255) {                       // 255 == unknown
+            *percent = (pct > 100) ? 100 : pct; // clamp between 0%, 100%
+        }
+        if (secs != 0xFFFF) { // 0xFFFF == unknown
+            *seconds = secs;
+        }
+    }
+
+    return true; // the definitive answer if APM driver replied.
+}
+
+#endif // SDL_POWER_HAIKU
+#endif // SDL_POWER_DISABLED