#define HEIGHT 120
#define DEPTH 60
+struct pos {
+ efi_uintn_t x;
+ efi_uintn_t y;
+ int redrawn;
+};
+
static const struct efi_gop_pixel BLACK = { 0, 0, 0, 0};
static const struct efi_gop_pixel RED = { 0, 0, 255, 0};
static const struct efi_gop_pixel ORANGE = { 0, 128, 255, 0};
static struct efi_gop *gop;
static struct efi_gop_pixel *bitmap;
static struct efi_event *event;
-static efi_uintn_t xpos;
+static struct pos pos;
static void ellipse(efi_uintn_t x, efi_uintn_t y,
efi_uintn_t x0, efi_uintn_t y0,
*/
static void EFIAPI notify(struct efi_event *event, void *context)
{
- efi_uintn_t *pos = context;
+ struct pos *pos = context;
efi_uintn_t dx, sx, width;
if (!pos)
return;
/* Increment position */
- *pos += 5;
- if (*pos >= WIDTH + gop->mode->info->width)
- *pos = 0;
+ pos->x += 5;
+ if (pos->x >= WIDTH + gop->mode->info->width)
+ pos->x = 0;
width = WIDTH;
- dx = *pos - WIDTH;
+ dx = pos->x - WIDTH;
sx = 0;
- if (*pos >= gop->mode->info->width) {
- width = WIDTH + gop->mode->info->width - *pos;
- } else if (*pos < WIDTH) {
+ if (pos->x >= gop->mode->info->width) {
+ width = WIDTH + gop->mode->info->width - pos->x;
+ } else if (pos->x < WIDTH) {
dx = 0;
- sx = WIDTH - *pos;
- width = *pos;
+ sx = WIDTH - pos->x;
+ width = pos->x;
}
/* Copy image to video */
- gop->blt(gop, bitmap, EFI_BLT_BUFFER_TO_VIDEO, sx, 0, dx, DEPTH,
+ gop->blt(gop, bitmap, EFI_BLT_BUFFER_TO_VIDEO, sx, 0, dx, pos->y,
width, HEIGHT, WIDTH * sizeof(struct efi_gop_pixel));
+
+ pos->redrawn = 1;
}
/*
/* Create event */
ret = boottime->create_event(EVT_TIMER | EVT_NOTIFY_SIGNAL,
- TPL_CALLBACK, notify, (void *)&xpos,
+ TPL_CALLBACK, notify, (void *)&pos,
&event);
if (ret != EFI_SUCCESS) {
efi_st_error("could not create event\n");
return EFI_ST_FAILURE;
}
+ con_out->set_attribute(con_out, EFI_WHITE | EFI_BACKGROUND_BLUE);
+ con_out->clear_screen(con_out);
+
/* Fill background */
ret = gop->blt(gop, bitmap, EFI_BLT_VIDEO_FILL, 0, 0, 0, 0,
info->width, info->height, 0);
return EFI_ST_FAILURE;
}
- /* Set 250ms timer */
- xpos = WIDTH;
+ /* Set 25ms timer */
+ pos.x = WIDTH;
+ pos.y = DEPTH;
ret = boottime->set_timer(event, EFI_TIMER_PERIODIC, 250000);
if (ret != EFI_SUCCESS) {
efi_st_error("Could not set timer\n");
return EFI_ST_FAILURE;
}
- con_out->set_cursor_position(con_out, 0, 0);
- con_out->set_attribute(con_out, EFI_WHITE | EFI_BACKGROUND_BLUE);
efi_st_printf("The submarine should have three yellow port holes.\n");
- efi_st_printf("Press any key to continue");
- efi_st_get_key();
+ efi_st_printf("UP, DOWN to navigate, any other key to quit");
+ for (;;) {
+ struct efi_input_key input_key;
+
+ ret = boottime->check_event(con_in->wait_for_key);
+ if (ret == EFI_NOT_READY)
+ continue;
+ if (ret != EFI_SUCCESS) {
+ efi_st_error("CheckEvent failed %x\n",
+ (unsigned int)ret);
+ return EFI_ST_FAILURE;
+ }
+ ret = con_in->read_key_stroke(con_in, &input_key);
+ if (ret != EFI_SUCCESS) {
+ efi_st_error("Key not available %x\n",
+ (unsigned int)ret);
+ return EFI_ST_FAILURE;
+ }
+ switch (input_key.scan_code) {
+ case 0x01: /* UP */
+ if (pos.redrawn && pos.y >= 5) {
+ pos.y -= 5;
+ pos.redrawn = 0;
+ }
+ continue;
+ case 0x02: /* DOWN */
+ if (pos.redrawn &&
+ pos.y + HEIGHT + 5 < gop->mode->info->height) {
+ pos.y += 5;
+ pos.redrawn = 0;
+ }
+ continue;
+ }
+ break;
+ }
con_out->set_attribute(con_out, EFI_LIGHTGRAY);
- efi_st_printf("\n");
+ con_out->clear_screen(con_out);
return EFI_ST_SUCCESS;
}