mirror of
https://github.com/trezor/trezor-firmware.git
synced 2024-11-19 05:58:09 +00:00
84 lines
2.4 KiB
C
84 lines
2.4 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 <stdlib.h>
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#include <SDL2/SDL.h>
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#define DISPLAY_BORDER 16
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static SDL_Renderer *RENDERER = 0;
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static SDL_Surface *BUFFER = 0;
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static SDL_Texture *TEXTURE = 0;
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static int DATAODD = 0;
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static int POSX, POSY, SX, SY, EX, EY = 0;
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#define CMD(X) (void)(X);
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void DATA(uint8_t x) {
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if (POSX <= EX && POSY <= EY) {
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((uint8_t *)BUFFER->pixels)[POSX * 2 + POSY * BUFFER->pitch + (DATAODD ^ 1)] = x;
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}
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DATAODD = !DATAODD;
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if (DATAODD == 0) {
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POSX++;
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if (POSX > EX) {
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POSX = SX;
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POSY++;
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}
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}
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}
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void display_init(void)
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{
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if (SDL_Init(SDL_INIT_VIDEO) != 0) {
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printf("SDL_Init Error: %s\n", SDL_GetError());
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}
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SDL_Window *win = SDL_CreateWindow("TREZOR", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, DISPLAY_RESX + 2 * DISPLAY_BORDER, DISPLAY_RESY + 2 * DISPLAY_BORDER, SDL_WINDOW_SHOWN);
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if (!win) {
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printf("SDL_CreateWindow Error: %s\n", SDL_GetError());
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SDL_Quit();
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}
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RENDERER = SDL_CreateRenderer(win, -1, SDL_RENDERER_ACCELERATED);
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if (!RENDERER) {
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printf("SDL_CreateRenderer Error: %s\n", SDL_GetError());
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SDL_DestroyWindow(win);
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SDL_Quit();
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}
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SDL_SetRenderDrawColor(RENDERER, BACKLIGHT, BACKLIGHT, BACKLIGHT, 255);
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SDL_RenderClear(RENDERER);
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BUFFER = SDL_CreateRGBSurface(0, DISPLAY_RESX, DISPLAY_RESY, 16, 0xF800, 0x07E0, 0x001F, 0x0000);
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TEXTURE = SDL_CreateTexture(RENDERER, SDL_PIXELFORMAT_RGB565, SDL_TEXTUREACCESS_STREAMING, DISPLAY_RESX, DISPLAY_RESY);
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SDL_SetTextureBlendMode(TEXTURE, SDL_BLENDMODE_NONE);
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SDL_SetTextureAlphaMod(TEXTURE, 0);
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}
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static void display_set_window(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1)
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{
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SX = x0; SY = y0;
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EX = x1; EY = y1;
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POSX = SX; POSY = SY;
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DATAODD = 0;
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}
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void display_refresh(void)
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{
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SDL_RenderClear(RENDERER);
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SDL_UpdateTexture(TEXTURE, NULL, BUFFER->pixels, BUFFER->pitch);
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const SDL_Rect r = {DISPLAY_BORDER, DISPLAY_BORDER, DISPLAY_RESX, DISPLAY_RESY};
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SDL_RenderCopyEx(RENDERER, TEXTURE, NULL, &r, ORIENTATION, NULL, 0);
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SDL_RenderPresent(RENDERER);
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}
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static void display_set_orientation(int degrees)
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{
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}
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static void display_set_backlight(int val)
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{
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SDL_SetRenderDrawColor(RENDERER, val, val, val, 255);
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}
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