177 lines
4.9 KiB
C
177 lines
4.9 KiB
C
/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#include "SDL_internal.h"
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#if SDL_VIDEO_DRIVER_RISCOS
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#include "../../events/SDL_events_c.h"
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#include "SDL_riscosvideo.h"
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#include "SDL_riscosevents_c.h"
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#include "scancodes_riscos.h"
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#include <kernel.h>
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#include <swis.h>
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static SDL_Scancode SDL_RISCOS_translate_keycode(int keycode)
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{
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SDL_Scancode scancode = SDL_SCANCODE_UNKNOWN;
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if (keycode < SDL_arraysize(riscos_scancode_table)) {
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scancode = riscos_scancode_table[keycode];
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#ifdef DEBUG_SCANCODES
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if (scancode == SDL_SCANCODE_UNKNOWN) {
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SDL_Log("The key you just pressed is not recognized by SDL: %d", keycode);
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}
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#endif
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}
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return scancode;
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}
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void RISCOS_PollKeyboard(_THIS)
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{
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SDL_VideoData *driverdata = _this->driverdata;
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Uint8 key = 2;
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int i;
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/* Check for key releases */
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for (i = 0; i < RISCOS_MAX_KEYS_PRESSED; i++) {
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if (driverdata->key_pressed[i] != 255) {
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if ((_kernel_osbyte(129, driverdata->key_pressed[i] ^ 0xff, 0xff) & 0xff) != 255) {
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SDL_SendKeyboardKey(0, SDL_RELEASED, SDL_RISCOS_translate_keycode(driverdata->key_pressed[i]));
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driverdata->key_pressed[i] = 255;
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}
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}
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}
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/* Check for key presses */
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while (key < 0xff) {
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key = _kernel_osbyte(121, key + 1, 0) & 0xff;
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switch (key) {
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case 255:
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/* Ignore mouse keys */
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case 9:
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case 10:
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case 11:
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/* Ignore keys with multiple INKEY codes */
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case 24:
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case 40:
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case 71:
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case 87:
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break;
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default:
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SDL_SendKeyboardKey(0, SDL_PRESSED, SDL_RISCOS_translate_keycode(key));
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/* Record the press so we can detect release later. */
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for (i = 0; i < RISCOS_MAX_KEYS_PRESSED; i++) {
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if (driverdata->key_pressed[i] == key) {
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break;
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}
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if (driverdata->key_pressed[i] == 255) {
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driverdata->key_pressed[i] = key;
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break;
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}
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}
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}
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}
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}
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static const Uint8 mouse_button_map[] = {
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SDL_BUTTON_RIGHT,
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SDL_BUTTON_MIDDLE,
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SDL_BUTTON_LEFT,
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SDL_BUTTON_X1,
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SDL_BUTTON_X2,
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SDL_BUTTON_X2 + 1,
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SDL_BUTTON_X2 + 2,
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SDL_BUTTON_X2 + 3
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};
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void RISCOS_PollMouse(_THIS)
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{
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SDL_VideoData *driverdata = _this->driverdata;
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SDL_Mouse *mouse = SDL_GetMouse();
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SDL_Rect rect;
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_kernel_swi_regs regs;
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int i, x, y, buttons;
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if (SDL_GetDisplayBounds(SDL_GetPrimaryDisplay(), &rect) < 0) {
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return;
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}
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_kernel_swi(OS_Mouse, ®s, ®s);
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x = (regs.r[0] >> 1);
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y = rect.h - (regs.r[1] >> 1);
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buttons = regs.r[2];
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if (mouse->x != x || mouse->y != y) {
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SDL_SendMouseMotion(0, mouse->focus, mouse->mouseID, 0, (float)x, (float)y);
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}
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if (driverdata->last_mouse_buttons != buttons) {
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for (i = 0; i < SDL_arraysize(mouse_button_map); i++) {
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SDL_SendMouseButton(0, mouse->focus, mouse->mouseID, (buttons & (1 << i)) ? SDL_PRESSED : SDL_RELEASED, mouse_button_map[i]);
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}
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driverdata->last_mouse_buttons = buttons;
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}
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}
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int RISCOS_InitEvents(_THIS)
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{
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SDL_VideoData *driverdata = _this->driverdata;
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_kernel_swi_regs regs;
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int i, status;
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for (i = 0; i < RISCOS_MAX_KEYS_PRESSED; i++) {
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driverdata->key_pressed[i] = 255;
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}
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status = (_kernel_osbyte(202, 0, 255) & 0xFF);
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SDL_ToggleModState(SDL_KMOD_NUM, (status & (1 << 2)) ? SDL_FALSE : SDL_TRUE);
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SDL_ToggleModState(SDL_KMOD_CAPS, (status & (1 << 4)) ? SDL_FALSE : SDL_TRUE);
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SDL_ToggleModState(SDL_KMOD_SCROLL, (status & (1 << 1)) ? SDL_TRUE : SDL_FALSE);
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_kernel_swi(OS_Mouse, ®s, ®s);
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driverdata->last_mouse_buttons = regs.r[2];
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/* Disable escape. */
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_kernel_osbyte(229, 1, 0);
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return 0;
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}
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void RISCOS_PumpEvents(_THIS)
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{
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RISCOS_PollMouse(_this);
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RISCOS_PollKeyboard(_this);
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}
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void RISCOS_QuitEvents(_THIS)
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{
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/* Re-enable escape. */
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_kernel_osbyte(229, 0, 0);
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}
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#endif /* SDL_VIDEO_DRIVER_RISCOS */
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