58 lines
1.7 KiB
C
58 lines
1.7 KiB
C
/*
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* Copyright (c) Pavol Rusnak, SatoshiLabs
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*
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* Licensed under TREZOR License
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* see LICENSE file for details
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*/
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#include <stdint.h>
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#ifndef TREZOR_NOUI
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#include <SDL2/SDL.h>
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#endif
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#include "options.h"
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uint32_t touch_read(void)
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{
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#ifndef TREZOR_NOUI
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SDL_Event event;
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int x, y;
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SDL_PumpEvents();
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if (SDL_PollEvent(&event) > 0) {
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switch (event.type) {
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case SDL_MOUSEBUTTONDOWN:
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case SDL_MOUSEMOTION:
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case SDL_MOUSEBUTTONUP:
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x = event.button.x - DISPLAY_BORDER;
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y = event.button.y - DISPLAY_BORDER;
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if (x < 0 || y < 0 || x >= DISPLAY_RESX || y >= DISPLAY_RESY) break;
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switch (event.type) {
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case SDL_MOUSEBUTTONDOWN:
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return (0x00 << 24) | (0x01 << 16) | (x << 8) | y; // touch_start
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break;
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case SDL_MOUSEMOTION:
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// remove other SDL_MOUSEMOTION events from queue
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SDL_FlushEvent(SDL_MOUSEMOTION);
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if (event.motion.state) {
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return (0x00 << 24) | (0x02 << 16) | (x << 8) | y; // touch_move
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}
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break;
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case SDL_MOUSEBUTTONUP:
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return (0x00 << 24) | (0x04 << 16) | (x << 8) | y; // touch_end
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break;
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}
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break;
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case SDL_KEYUP:
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if (event.key.keysym.sym == SDLK_ESCAPE) {
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exit(3);
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}
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break;
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case SDL_QUIT:
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exit(3);
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break;
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}
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}
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#endif
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return 0;
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}
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