mirror of
https://github.com/encounter/SDL.git
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121 lines
3.4 KiB
C
121 lines
3.4 KiB
C
/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2017 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_SWITCH
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#include <switch.h>
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#include "SDL_events.h"
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#include "../../events/SDL_touch_c.h"
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#include "../../video/SDL_sysvideo.h"
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#define MAX_TOUCH 16
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typedef struct SwitchTouch
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{
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SDL_FingerID id;
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touchPosition position;
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} SwitchTouch;
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typedef struct TouchState
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{
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SwitchTouch touch[MAX_TOUCH];
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u32 count;
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} TouchState;
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TouchState touchState;
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TouchState touchState_old;
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void
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SWITCH_InitTouch(void)
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{
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SDL_AddTouch((SDL_TouchID) 0, SDL_TOUCH_DEVICE_DIRECT, "Switch");
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}
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void
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SWITCH_QuitTouch(void)
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{
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}
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void
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SWITCH_PollTouch(void)
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{
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SDL_Window *window = SDL_GetFocusWindow();
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if (window == NULL) {
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return;
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}
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memcpy(&touchState_old, &touchState, sizeof(touchState));
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touchState.count = hidTouchCount();
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if (touchState.count >= MAX_TOUCH) {
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touchState.count = MAX_TOUCH - 1;
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}
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if (touchState.count > 0) {
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for (u32 i = 0; i < touchState.count; i++) {
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touchState.touch[i].id = i;
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hidTouchRead(&touchState.touch[i].position, i);
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// Send an initial touch
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SDL_SendTouch(0, (SDL_FingerID) i, window, SDL_TRUE,
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(float) touchState.touch[i].position.px / 1280.0f,
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(float) touchState.touch[i].position.py / 720.0f, 1);
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// Always send the motion
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SDL_SendTouchMotion(0, (SDL_FingerID) i, window,
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(float) touchState.touch[i].position.px / 1280.0f,
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(float) touchState.touch[i].position.py / 720.0f, 1);
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}
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}
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// some fingers might have been let go
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if (touchState_old.count > 0) {
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for (int i = 0; i < touchState_old.count; i++) {
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int finger_up = 1;
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if (touchState.count > 0) {
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for (int j = 0; j < touchState.count; j++) {
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if (touchState.touch[j].id == touchState_old.touch[i].id) {
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finger_up = 0;
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}
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}
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}
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if (finger_up == 1) {
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// Finger released from screen
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SDL_SendTouch((SDL_TouchID) 0, (SDL_FingerID) touchState_old.touch[i].id, window, SDL_FALSE,
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(float) touchState_old.touch[i].position.px / 1280.0f,
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(float) touchState_old.touch[i].position.py / 720.0f, 1);
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}
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}
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}
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}
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#endif /* SDL_VIDEO_DRIVER_SWITCH */
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/* vi: set ts=4 sw=4 expandtab: */
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