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trezor-firmware/embed/unix/touch.c

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/*
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* This file is part of the TREZOR project, https://trezor.io/
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*
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* Copyright (c) SatoshiLabs
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdint.h>
#ifndef TREZOR_EMULATOR_NOUI
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#include <SDL2/SDL.h>
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#endif
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#include "touch.h"
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extern int sdl_display_res_x, sdl_display_res_y;
extern int sdl_touch_offset_x, sdl_touch_offset_y;
extern void __shutdown(void);
extern void display_save(const char *prefix);
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uint32_t touch_read(void)
{
#ifndef TREZOR_EMULATOR_NOUI
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SDL_Event event;
SDL_PumpEvents();
if (SDL_PollEvent(&event) > 0) {
switch (event.type) {
#if TREZOR_MODEL == T
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case SDL_MOUSEBUTTONDOWN:
case SDL_MOUSEMOTION:
case SDL_MOUSEBUTTONUP: {
const int x = event.button.x - sdl_touch_offset_x;
const int y = event.button.y - sdl_touch_offset_y;
if (x < 0 || y < 0 || x >= sdl_display_res_x || y >= sdl_display_res_y) {
if (event.motion.state) {
const int clamp_x = (x < 0) ? 0 : ((x >= sdl_display_res_x) ? sdl_display_res_x - 1 : x);
const int clamp_y = (y < 0) ? 0 : ((y >= sdl_display_res_y) ? sdl_display_res_y - 1 : y);
return TOUCH_END | touch_pack_xy(clamp_x, clamp_y);
} else {
break;
}
}
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switch (event.type) {
case SDL_MOUSEBUTTONDOWN:
return TOUCH_START | touch_pack_xy(x, y);
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case SDL_MOUSEMOTION:
// remove other SDL_MOUSEMOTION events from queue
SDL_FlushEvent(SDL_MOUSEMOTION);
if (event.motion.state) {
return TOUCH_MOVE | touch_pack_xy(x, y);
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}
break;
case SDL_MOUSEBUTTONUP:
return TOUCH_END | touch_pack_xy(x, y);
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}
break;
}
#endif
#if TREZOR_MODEL == 1
case SDL_KEYDOWN:
if (event.key.repeat) {
break;
}
switch (event.key.keysym.sym) {
case SDLK_LEFT:
return TOUCH_START | touch_pack_xy(0, sdl_display_res_y - 1);
case SDLK_RIGHT:
return TOUCH_START | touch_pack_xy(sdl_display_res_x - 1, sdl_display_res_y - 1);
}
break;
#endif
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case SDL_KEYUP:
if (event.key.repeat) {
break;
}
switch (event.key.keysym.sym) {
case SDLK_ESCAPE:
__shutdown();
break;
case SDLK_p:
display_save("emu");
break;
#if TREZOR_MODEL == 1
case SDLK_LEFT:
return TOUCH_END | touch_pack_xy(0, sdl_display_res_y - 1);
case SDLK_RIGHT:
return TOUCH_END | touch_pack_xy(sdl_display_res_x - 1, sdl_display_res_y - 1);
#endif
}
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break;
case SDL_QUIT:
__shutdown();
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break;
}
}
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#endif
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return 0;
}