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https://github.com/encounter/SDL.git
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115 lines
3.5 KiB
C
115 lines
3.5 KiB
C
/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2018 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_timer.h"
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#include "SDL_events.h"
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#include "SDL_log.h"
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#include "SDL_mouse.h"
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#include "SDL_switchvideo.h"
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#include "SDL_switchmouse_c.h"
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#include "../../events/SDL_mouse_c.h"
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static uint64_t prev_buttons = 0;
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static uint64_t last_timestamp = 0;
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const uint64_t mouse_read_interval = 15; // in ms
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static int
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SWITCH_SetRelativeMouseMode(SDL_bool enabled)
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{
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return 0;
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}
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void
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SWITCH_InitMouse(void)
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{
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SDL_Mouse *mouse = SDL_GetMouse();
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mouse->SetRelativeMouseMode = SWITCH_SetRelativeMouseMode;
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hidInitializeMouse();
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}
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void
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SWITCH_PollMouse(void)
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{
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SDL_Window *window = SDL_GetFocusWindow();
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HidMouseState mouse_state;
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size_t state_count;
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uint64_t changed_buttons;
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uint64_t timestamp;
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int dx, dy;
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// We skip polling mouse if no window is created
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if (window == NULL)
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return;
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state_count = hidGetMouseStates(&mouse_state, 1);
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changed_buttons = mouse_state.buttons ^ prev_buttons;
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if (changed_buttons & HidMouseButton_Left) {
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if (prev_buttons & HidMouseButton_Left)
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SDL_SendMouseButton(window, 0, SDL_RELEASED, SDL_BUTTON_LEFT);
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else
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SDL_SendMouseButton(window, 0, SDL_PRESSED, SDL_BUTTON_LEFT);
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}
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if (changed_buttons & HidMouseButton_Right) {
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if (prev_buttons & HidMouseButton_Right)
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SDL_SendMouseButton(window, 0, SDL_RELEASED, SDL_BUTTON_RIGHT);
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else
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SDL_SendMouseButton(window, 0, SDL_PRESSED, SDL_BUTTON_RIGHT);
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}
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if (changed_buttons & HidMouseButton_Middle) {
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if (prev_buttons & HidMouseButton_Middle)
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SDL_SendMouseButton(window, 0, SDL_RELEASED, SDL_BUTTON_MIDDLE);
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else
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SDL_SendMouseButton(window, 0, SDL_PRESSED, SDL_BUTTON_MIDDLE);
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}
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prev_buttons = mouse_state.buttons;
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timestamp = SDL_GetTicks();
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if (SDL_TICKS_PASSED(timestamp, last_timestamp + mouse_read_interval)) {
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// if hidMouseRead is called once per frame, a factor two on the velocities
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// results in approximately the same mouse motion as reported by mouse_pos.x and mouse_pos.y
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// but without the clamping to 1280 x 720
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if(state_count > 0) {
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dx = mouse_state.delta_x * 2;
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dy = mouse_state.delta_y * 2;
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if (dx || dy) {
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SDL_SendMouseMotion(window, 0, 1, dx, dy);
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}
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}
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last_timestamp = timestamp;
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}
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}
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void
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SWITCH_QuitMouse(void)
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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: */ |