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mirror of https://github.com/trezor/trezor-firmware.git synced 2024-12-22 22:38:08 +00:00
trezor-firmware/extmod/modTrezorUi/modTrezorUi-unix.h
2016-09-27 17:20:32 +02:00

70 lines
2.0 KiB
C

/*
* Copyright (c) Pavol Rusnak, SatoshiLabs
*
* Licensed under Microsoft Reference Source License (Ms-RSL)
* see LICENSE.md file for details
*/
#include <SDL2/SDL.h>
static int SDL_inited = 0;
static SDL_Renderer *RENDERER = 0;
static SDL_Surface *SCREEN = 0;
static SDL_Texture *TEXTURE = 0;
static int DATAODD = 0;
static int POSX, POSY, SX, SY, EX, EY = 0;
static void DATA(uint8_t x) {
if (!SDL_inited) return;
if (POSX <= EX && POSY <= EY) {
((uint8_t *)SCREEN->pixels)[POSX * 2 + POSY * SCREEN->pitch + (DATAODD ^ 1)] = x;
}
DATAODD = !DATAODD;
if (DATAODD == 0) {
POSX++;
if (POSX > EX) {
POSX = SX;
POSY++;
}
}
}
static void display_init(void)
{
if (SDL_inited) return;
if (SDL_Init(SDL_INIT_VIDEO) != 0) {
printf("SDL_Init Error: %s\n", SDL_GetError());
}
SDL_Window *win = SDL_CreateWindow("TREZOR", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, RESX, RESY, SDL_WINDOW_SHOWN);
if (!win) {
printf("SDL_CreateWindow Error: %s\n", SDL_GetError());
SDL_Quit();
}
RENDERER = SDL_CreateRenderer(win, -1, SDL_RENDERER_SOFTWARE);
if (!RENDERER) {
printf("SDL_CreateRenderer Error: %s\n", SDL_GetError());
SDL_DestroyWindow(win);
SDL_Quit();
}
SDL_RenderClear(RENDERER);
SCREEN = SDL_CreateRGBSurface(0, RESX, RESY, 16, 0xF800, 0x07E0, 0x001F, 0x0000);
TEXTURE = SDL_CreateTexture(RENDERER, SDL_PIXELFORMAT_RGB565, SDL_TEXTUREACCESS_STREAMING, RESX, RESY);
SDL_inited = 1;
}
static void display_set_window(uint8_t x, uint8_t y, uint8_t w, uint8_t h) {
if (!SDL_inited) return;
SX = x; SY = y;
EX = x + w - 1; EY = y + h - 1;
POSX = SX; POSY = SY;
DATAODD = 0;
}
static void display_update(void)
{
if (!SDL_inited) return;
SDL_UpdateTexture(TEXTURE, NULL, SCREEN->pixels, SCREEN->pitch);
SDL_RenderCopy(RENDERER, TEXTURE, NULL, NULL);
SDL_RenderPresent(RENDERER);
}