/* * Copyright (c) Pavol Rusnak, SatoshiLabs * * Licensed under Microsoft Reference Source License (Ms-RSL) * see LICENSE.md file for details */ #include 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 int ROTATION = 0; #define DATA(X) DATAfunc((X)) static void DATAfunc(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_RenderClear(RENDERER); SDL_UpdateTexture(TEXTURE, NULL, SCREEN->pixels, SCREEN->pitch); SDL_RenderCopyEx(RENDERER, TEXTURE, NULL, NULL, ROTATION, NULL, 0); SDL_RenderPresent(RENDERER); } static void display_orientation(int degrees) { ROTATION = degrees; display_update(); }