/*
* This file is part of the TREZOR project, https://trezor.io/
*
* 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/>.
*/
#include <stdlib.h>
#ifndef TREZOR_EMULATOR_NOUI
#include <SDL2/SDL.h>
#include <SDL2/SDL_image.h>
#define EMULATOR_BORDER 16
#if TREZOR_MODEL == T
#ifdef TREZOR_EMULATOR_RASPI
#define WINDOW_WIDTH 480
#define WINDOW_HEIGHT 320
#define TOUCH_OFFSET_X 110
#define TOUCH_OFFSET_Y 40
#else
#define WINDOW_WIDTH 400
#define WINDOW_HEIGHT 600
#define TOUCH_OFFSET_X 80
#define TOUCH_OFFSET_Y 110
#endif
#elif TREZOR_MODEL == 1
#define WINDOW_WIDTH 200
#define WINDOW_HEIGHT 340
#define TOUCH_OFFSET_X 36
#define TOUCH_OFFSET_Y 92
#else
#error Unknown TREZOR Model
#endif
static SDL_Renderer *RENDERER;
static SDL_Surface *BUFFER;
static SDL_Texture *TEXTURE, *BACKGROUND;
int sdl_display_res_x = DISPLAY_RESX, sdl_display_res_y = DISPLAY_RESY;
int sdl_touch_offset_x, sdl_touch_offset_y;
static struct {
struct {
uint16_t x, y;
} start;
struct {
uint16_t x, y;
} end;
struct {
uint16_t x, y;
} pos;
} PIXELWINDOW;
void PIXELDATA(uint16_t c) {
#if TREZOR_MODEL == 1
// set to white if highest bits of all R, G, B values are set to 1
// bin(10000 100000 10000) = hex(0x8410)
// otherwise set to black
c = (c & 0x8410) ? 0xFFFF : 0x0000;
#endif
if (!RENDERER) {
display_init();
}
if (PIXELWINDOW.pos.x <= PIXELWINDOW.end.x && PIXELWINDOW.pos.y <= PIXELWINDOW.end.y) {
((uint16_t *)BUFFER->pixels)[PIXELWINDOW.pos.x + PIXELWINDOW.pos.y * BUFFER->pitch / sizeof(uint16_t)] = c;
}
PIXELWINDOW.pos.x++;
if (PIXELWINDOW.pos.x > PIXELWINDOW.end.x) {
PIXELWINDOW.pos.x = PIXELWINDOW.start.x;
PIXELWINDOW.pos.y++;
}
}
#else
#define PIXELDATA(X) (void)(X)
#endif
void display_init(void)
{
#ifndef TREZOR_EMULATOR_NOUI
if (SDL_Init(SDL_INIT_VIDEO) != 0) {
printf("%s\n", SDL_GetError());
ensure(secfalse, "SDL_Init error");
}
atexit(SDL_Quit);
SDL_Window *win = SDL_CreateWindow("TREZOR Emulator", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, WINDOW_WIDTH, WINDOW_HEIGHT,
#ifdef TREZOR_EMULATOR_RASPI
SDL_WINDOW_SHOWN | SDL_WINDOW_FULLSCREEN
#else
SDL_WINDOW_SHOWN | SDL_WINDOW_ALLOW_HIGHDPI
#endif
);
if (!win) {
printf("%s\n", SDL_GetError());
ensure(secfalse, "SDL_CreateWindow error");
}
RENDERER = SDL_CreateRenderer(win, -1, SDL_RENDERER_SOFTWARE);
if (!RENDERER) {
printf("%s\n", SDL_GetError());
SDL_DestroyWindow(win);
ensure(secfalse, "SDL_CreateRenderer error");
}
SDL_SetRenderDrawColor(RENDERER, 0, 0, 0, 255);
SDL_RenderClear(RENDERER);
BUFFER = SDL_CreateRGBSurface(0, MAX_DISPLAY_RESX, MAX_DISPLAY_RESY, 16, 0xF800, 0x07E0, 0x001F, 0x0000);
TEXTURE = SDL_CreateTexture(RENDERER, SDL_PIXELFORMAT_RGB565, SDL_TEXTUREACCESS_STREAMING, DISPLAY_RESX, DISPLAY_RESY);
SDL_SetTextureBlendMode(TEXTURE, SDL_BLENDMODE_BLEND);
#ifdef __APPLE__
// macOS Mojave SDL black screen workaround
SDL_PumpEvents();
SDL_SetWindowSize(win, WINDOW_WIDTH, WINDOW_HEIGHT);
#endif
// TODO: find better way how to embed/distribute background image
#ifdef TREZOR_EMULATOR_RASPI
BACKGROUND = IMG_LoadTexture(RENDERER, "../embed/unix/background_raspi.jpg");
#else
BACKGROUND = IMG_LoadTexture(RENDERER, "../embed/unix/background_" XSTR(TREZOR_MODEL) ".jpg");
#endif
if (BACKGROUND) {
SDL_SetTextureBlendMode(BACKGROUND, SDL_BLENDMODE_NONE);
sdl_touch_offset_x = TOUCH_OFFSET_X;
sdl_touch_offset_y = TOUCH_OFFSET_Y;
} else {
SDL_SetWindowSize(win, DISPLAY_RESX + 2 * EMULATOR_BORDER, DISPLAY_RESY + 2 * EMULATOR_BORDER);
sdl_touch_offset_x = EMULATOR_BORDER;
sdl_touch_offset_y = EMULATOR_BORDER;
}
DISPLAY_BACKLIGHT = 0;
#ifdef TREZOR_EMULATOR_RASPI
DISPLAY_ORIENTATION = 270;
SDL_ShowCursor(SDL_DISABLE);
#else
DISPLAY_ORIENTATION = 0;
#endif
#endif
}
static void display_set_window(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1)
{
#ifndef TREZOR_EMULATOR_NOUI
if (!RENDERER) {
display_init();
}
PIXELWINDOW.start.x = x0; PIXELWINDOW.start.y = y0;
PIXELWINDOW.end.x = x1; PIXELWINDOW.end.y = y1;
PIXELWINDOW.pos.x = x0; PIXELWINDOW.pos.y = y0;
#endif
}
void display_refresh(void)
{
#ifndef TREZOR_EMULATOR_NOUI
if (!RENDERER) {
display_init();
}
if (BACKGROUND) {
SDL_RenderCopy(RENDERER, BACKGROUND, NULL, NULL);
} else {
SDL_RenderClear(RENDERER);
}
SDL_UpdateTexture(TEXTURE, NULL, BUFFER->pixels, BUFFER->pitch);
#define BACKLIGHT_NORMAL 150
SDL_SetTextureAlphaMod(TEXTURE, MIN(255, 255 * DISPLAY_BACKLIGHT / BACKLIGHT_NORMAL));
if (BACKGROUND) {
const SDL_Rect r = {TOUCH_OFFSET_X, TOUCH_OFFSET_Y, DISPLAY_RESX, DISPLAY_RESY};
SDL_RenderCopyEx(RENDERER, TEXTURE, NULL, &r, DISPLAY_ORIENTATION, NULL, 0);
} else {
const SDL_Rect r = {EMULATOR_BORDER, EMULATOR_BORDER, DISPLAY_RESX, DISPLAY_RESY};
SDL_RenderCopyEx(RENDERER, TEXTURE, NULL, &r, DISPLAY_ORIENTATION, NULL, 0);
}
SDL_RenderPresent(RENDERER);
#endif
}
static void display_set_orientation(int degrees)
{
display_refresh();
}
static void display_set_backlight(int val)
{
display_refresh();
}
void display_save(const char *prefix)
{
#ifndef TREZOR_EMULATOR_NOUI
if (!RENDERER) {
display_init();
}
static uint32_t cnt = 0;
char fname[256];
snprintf(fname, sizeof(fname), "%s%08d.png", prefix, cnt);
const SDL_Rect rect = {0, 0, DISPLAY_RESX, DISPLAY_RESY};
SDL_Surface *crop = SDL_CreateRGBSurface(BUFFER->flags, rect.w, rect.h, BUFFER->format->BitsPerPixel, BUFFER->format->Rmask, BUFFER->format->Gmask, BUFFER->format->Bmask, BUFFER->format->Amask);
SDL_BlitSurface(BUFFER, &rect, crop, NULL);
IMG_SavePNG(crop, fname);
SDL_FreeSurface(crop);
fprintf(stderr, "Saved screenshot to %s\n", fname);
cnt++;
#endif
}