Atlas - SDL_riscosmouse.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_VIDEO_DRIVER_RISCOS
24
25#include "SDL_riscosvideo.h"
26#include "SDL_riscosmouse.h"
27#include "../../events/SDL_mouse_c.h"
28
29#include <kernel.h>
30
31static SDL_Cursor *RISCOS_CreateDefaultCursor(void)
32{
33    SDL_Cursor *cursor = SDL_calloc(1, sizeof(*cursor));
34    if (cursor) {
35        // NULL is used to indicate the default cursor
36        cursor->internal = NULL;
37    }
38
39    return cursor;
40}
41
42static void RISCOS_FreeCursor(SDL_Cursor *cursor)
43{
44    SDL_free(cursor);
45}
46
47static bool RISCOS_ShowCursor(SDL_Cursor *cursor)
48{
49    if (cursor) {
50        // Turn the mouse pointer on
51        _kernel_osbyte(106, 1, 0);
52    } else {
53        // Turn the mouse pointer off
54        _kernel_osbyte(106, 0, 0);
55    }
56
57    return true;
58}
59
60bool RISCOS_InitMouse(SDL_VideoDevice *_this)
61{
62    SDL_Mouse *mouse = SDL_GetMouse();
63
64    // mouse->CreateCursor = RISCOS_CreateCursor;
65    // mouse->CreateSystemCursor = RISCOS_CreateSystemCursor;
66    mouse->ShowCursor = RISCOS_ShowCursor;
67    mouse->FreeCursor = RISCOS_FreeCursor;
68    // mouse->WarpMouse = RISCOS_WarpMouse;
69    // mouse->WarpMouseGlobal = RISCOS_WarpMouseGlobal;
70    // mouse->SetRelativeMouseMode = RISCOS_SetRelativeMouseMode;
71    // mouse->CaptureMouse = RISCOS_CaptureMouse;
72    // mouse->GetGlobalMouseState = RISCOS_GetGlobalMouseState;
73
74    SDL_SetDefaultCursor(RISCOS_CreateDefaultCursor());
75
76    return true;
77}
78
79#endif // SDL_VIDEO_DRIVER_RISCOS
80
[FILE END]
(C) 2025 0x4248
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