| /* |
| Simple DirectMedia Layer |
| Copyright (C) 1997-2022 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" |
| |
| #if SDL_VIDEO_DRIVER_RISCOS |
| |
| #include "../../events/SDL_events_c.h" |
| |
| #include "SDL_log.h" |
| #include "SDL_riscosvideo.h" |
| #include "SDL_riscosevents_c.h" |
| #include "scancodes_riscos.h" |
| |
| #include <kernel.h> |
| #include <swis.h> |
| |
| static SDL_Scancode |
| SDL_RISCOS_translate_keycode(int keycode) |
| { |
| SDL_Scancode scancode = SDL_SCANCODE_UNKNOWN; |
| |
| if (keycode < SDL_arraysize(riscos_scancode_table)) { |
| scancode = riscos_scancode_table[keycode]; |
| |
| if (scancode == SDL_SCANCODE_UNKNOWN) { |
| SDL_Log("The key you just pressed is not recognized by SDL: %d", keycode); |
| } |
| } |
| |
| return scancode; |
| } |
| |
| void |
| RISCOS_PollKeyboard(_THIS) |
| { |
| SDL_VideoData *driverdata = (SDL_VideoData *)_this->driverdata; |
| Uint8 key = 2; |
| int i; |
| |
| /* Check for key releases */ |
| for (i = 0; i < RISCOS_MAX_KEYS_PRESSED; i++) { |
| if (driverdata->key_pressed[i] != 255) { |
| if ((_kernel_osbyte(129, driverdata->key_pressed[i] ^ 0xff, 0xff) & 0xff) != 255) { |
| SDL_SendKeyboardKey(SDL_RELEASED, SDL_RISCOS_translate_keycode(driverdata->key_pressed[i])); |
| driverdata->key_pressed[i] = 255; |
| } |
| } |
| } |
| |
| /* Check for key presses */ |
| while (key < 0xff) { |
| key = _kernel_osbyte(121, key + 1, 0) & 0xff; |
| switch (key) { |
| case 255: |
| /* Ignore mouse keys */ |
| case 9: |
| case 10: |
| case 11: |
| /* Ignore keys with multiple INKEY codes */ |
| case 24: |
| case 40: |
| case 71: |
| case 87: |
| break; |
| |
| default: |
| SDL_SendKeyboardKey(SDL_PRESSED, SDL_RISCOS_translate_keycode(key)); |
| |
| /* Record the press so we can detect release later. */ |
| for (i = 0; i < RISCOS_MAX_KEYS_PRESSED; i++) { |
| if (driverdata->key_pressed[i] == key) { |
| break; |
| } |
| if (driverdata->key_pressed[i] == 255) { |
| driverdata->key_pressed[i] = key; |
| break; |
| } |
| } |
| } |
| } |
| } |
| |
| static const Uint8 mouse_button_map[] = { |
| SDL_BUTTON_RIGHT, |
| SDL_BUTTON_MIDDLE, |
| SDL_BUTTON_LEFT, |
| SDL_BUTTON_X1, |
| SDL_BUTTON_X2, |
| SDL_BUTTON_X2 + 1, |
| SDL_BUTTON_X2 + 2, |
| SDL_BUTTON_X2 + 3 |
| }; |
| |
| void |
| RISCOS_PollMouse(_THIS) |
| { |
| SDL_VideoData *driverdata = (SDL_VideoData *)_this->driverdata; |
| SDL_Mouse *mouse = SDL_GetMouse(); |
| SDL_Rect rect; |
| _kernel_swi_regs regs; |
| int i, x, y, buttons; |
| |
| if (SDL_GetDisplayBounds(0, &rect) < 0) { |
| return; |
| } |
| |
| _kernel_swi(OS_Mouse, ®s, ®s); |
| x = (regs.r[0] >> 1); |
| y = rect.h - (regs.r[1] >> 1); |
| buttons = regs.r[2]; |
| |
| if (mouse->x != x || mouse->y != y) { |
| SDL_SendMouseMotion(mouse->focus, mouse->mouseID, 0, x, y); |
| } |
| |
| if (driverdata->last_mouse_buttons != buttons) { |
| for (i = 0; i < SDL_arraysize(mouse_button_map); i++) { |
| SDL_SendMouseButton(mouse->focus, mouse->mouseID, (buttons & (1 << i)) ? SDL_PRESSED : SDL_RELEASED, mouse_button_map[i]); |
| } |
| driverdata->last_mouse_buttons = buttons; |
| } |
| } |
| |
| int |
| RISCOS_InitEvents(_THIS) |
| { |
| SDL_VideoData *driverdata = (SDL_VideoData *) _this->driverdata; |
| int i, status; |
| |
| for (i = 0; i < RISCOS_MAX_KEYS_PRESSED; i++) |
| driverdata->key_pressed[i] = 255; |
| |
| status = (_kernel_osbyte(202, 0, 255) & 0xFF); |
| SDL_ToggleModState(KMOD_NUM, (status & (1 << 2)) == 0); |
| SDL_ToggleModState(KMOD_CAPS, (status & (1 << 4)) == 0); |
| SDL_ToggleModState(KMOD_SCROLL, (status & (1 << 1)) != 0); |
| |
| /* Disable escape. */ |
| _kernel_osbyte(229, 1, 0); |
| |
| return 0; |
| } |
| |
| void |
| RISCOS_PumpEvents(_THIS) |
| { |
| RISCOS_PollMouse(_this); |
| RISCOS_PollKeyboard(_this); |
| } |
| |
| void |
| RISCOS_QuitEvents(_THIS) |
| { |
| /* Re-enable escape. */ |
| _kernel_osbyte(229, 0, 0); |
| } |
| |
| #endif /* SDL_VIDEO_DRIVER_RISCOS */ |
| |
| /* vi: set ts=4 sw=4 expandtab: */ |