Atlas - SDL_riscosvideo.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_sysvideo.h"
26#include "../SDL_pixels_c.h"
27#include "../../events/SDL_events_c.h"
28#include "../../events/SDL_keyboard_c.h"
29#include "../../events/SDL_mouse_c.h"
30
31#include "SDL_riscosvideo.h"
32#include "SDL_riscosevents_c.h"
33#include "SDL_riscosframebuffer_c.h"
34#include "SDL_riscosmouse.h"
35#include "SDL_riscosmodes.h"
36#include "SDL_riscoswindow.h"
37#include "SDL_riscosmessagebox.h"
38
39#define RISCOSVID_DRIVER_NAME "riscos"
40
41// Initialization/Query functions
42static bool RISCOS_VideoInit(SDL_VideoDevice *_this);
43static void RISCOS_VideoQuit(SDL_VideoDevice *_this);
44
45// RISC OS driver bootstrap functions
46
47static void RISCOS_DeleteDevice(SDL_VideoDevice *device)
48{
49    SDL_free(device->internal);
50    SDL_free(device);
51}
52
53static SDL_VideoDevice *RISCOS_CreateDevice(void)
54{
55    SDL_VideoDevice *device;
56    SDL_VideoData *data;
57
58    // Initialize all variables that we clean on shutdown
59    device = (SDL_VideoDevice *)SDL_calloc(1, sizeof(SDL_VideoDevice));
60    if (!device) {
61        return NULL;
62    }
63
64    // Initialize internal data
65    data = (SDL_VideoData *)SDL_calloc(1, sizeof(SDL_VideoData));
66    if (!data) {
67        SDL_free(device);
68        return NULL;
69    }
70
71    device->internal = data;
72
73    // Set the function pointers
74    device->VideoInit = RISCOS_VideoInit;
75    device->VideoQuit = RISCOS_VideoQuit;
76    device->PumpEvents = RISCOS_PumpEvents;
77
78    device->GetDisplayModes = RISCOS_GetDisplayModes;
79    device->SetDisplayMode = RISCOS_SetDisplayMode;
80
81    device->CreateSDLWindow = RISCOS_CreateWindow;
82    device->DestroyWindow = RISCOS_DestroyWindow;
83
84    device->CreateWindowFramebuffer = RISCOS_CreateWindowFramebuffer;
85    device->UpdateWindowFramebuffer = RISCOS_UpdateWindowFramebuffer;
86    device->DestroyWindowFramebuffer = RISCOS_DestroyWindowFramebuffer;
87
88    device->free = RISCOS_DeleteDevice;
89
90    // TODO: Support windowed mode
91    device->device_caps = VIDEO_DEVICE_CAPS_FULLSCREEN_ONLY;
92
93    return device;
94}
95
96VideoBootStrap RISCOS_bootstrap = {
97    RISCOSVID_DRIVER_NAME, "SDL RISC OS video driver",
98    RISCOS_CreateDevice,
99    RISCOS_ShowMessageBox,
100    false
101};
102
103static bool RISCOS_VideoInit(SDL_VideoDevice *_this)
104{
105    if (!RISCOS_InitEvents(_this)) {
106        return false;
107    }
108
109    if (!RISCOS_InitMouse(_this)) {
110        return false;
111    }
112
113    // Assume we have a mouse and keyboard
114    SDL_AddKeyboard(SDL_DEFAULT_KEYBOARD_ID, NULL);
115    SDL_AddMouse(SDL_DEFAULT_MOUSE_ID, NULL);
116
117    if (!RISCOS_InitModes(_this)) {
118        return false;
119    }
120
121    // We're done!
122    return true;
123}
124
125static void RISCOS_VideoQuit(SDL_VideoDevice *_this)
126{
127    RISCOS_QuitEvents(_this);
128}
129
130#endif // SDL_VIDEO_DRIVER_RISCOS
131
[FILE END]
(C) 2025 0x4248
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