Poke_Transporter_GB/source/multiboot_upload.cpp

#include <tonc.h>

#include "FileContainerReader.h"
#include "background_engine.h"
#include "global_frame_controller.h"
#include "libraries/gba-link-connection/include/LinkCableMultiboot.hpp"
#include "text_engine.h"
#include "text_tables.h"
#include "translated_text.h"

void multiboot_upload_screen()
{
    u8 decompression_buffer[2048];
    u8 lineBuffer[1024];
    const u8 **chunkList;
    u32 numChunks;
    u32 chunkSize;

    get_text_table_chunks(GENERAL_INDEX, &chunkList, &numChunks, &chunkSize);
    FileContainerReader general_text_reader(chunkList, numChunks, chunkSize);
    LinkCableMultiboot linkCableMultiboot;

    general_text_reader.init(decompression_buffer, sizeof(decompression_buffer));

    // multiboot_show_textbox();
    general_text_reader.readFile(GENERAL_send_multiboot_instructions, lineBuffer);
    ptgb_write_textbox(
        lineBuffer, true, false, GENERAL_INDEX, GENERAL_send_multiboot_instructions, false);

    // wait for key press
    do
    {
        VBlankIntrWait();
    } while (!key_hit(KEY_A) && !key_hit(KEY_B));

    if (key_hit(KEY_B))
    {
        // cancel
        return;
    }

    // start upload
    // multiboot_show_textbox();
    general_text_reader.readFile(GENERAL_send_multiboot_wait, lineBuffer);
    ptgb_write_textbox(lineBuffer, true, false, GENERAL_INDEX, GENERAL_send_multiboot_wait, false);
    VBlankIntrWait();

    const u32 romSize = 256 * 1024; // EWRAM = 256 KB
    LinkCableMultiboot::Result multibootResult =
        linkCableMultiboot.sendRom(((const u8 *)MEM_EWRAM), romSize,
            []()
            {
                u16 keys = ~REG_KEYS & KEY_ANY;
                return keys & KEY_B;
                // (when this returns true, the transfer will be canceled)
            });
    // show result
    // multiboot_show_textbox();
    u32 fileIndex = (multibootResult == LinkCableMultiboot::Result::SUCCESS)
                        ? GENERAL_send_multiboot_success
                        : GENERAL_send_multiboot_failure;
    general_text_reader.readFile(fileIndex, lineBuffer);

    ptgb_write_textbox(lineBuffer, true, false, GENERAL_INDEX, fileIndex, false);

    // wait for keypress again.
    do
    {
        VBlankIntrWait();
    } while (!key_hit(KEY_A));
}