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Currently in an unknown state, with keyboard input not implemented and display output working normally Last updated 2025-07-28
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superbeelavaman
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#!/usr/bin/python
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from PIL import Image
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import struct
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tilesheetPNG = Image.open("TermFont.png")
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tilesheetBIN = open("TermFont.bin", "wb")
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tilesheetPixels = tilesheetPNG.load()
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tilesheetX, tilesheetY = tilesheetPNG.size
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horizTiles = int(tilesheetX/8)
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vertTiles = int(tilesheetY/8)
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totalTiles = horizTiles*vertTiles
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def generateTile(x,y,image):
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tile = []
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for py in range(0,8):
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row = []
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for px in range(0,8):
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r,g,b,a = image[(8*x)+px,(8*y)+py]
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row.append(((r+g+b)>384))
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tile.append(sum([int(row[b])*(2**(7-b)) for b in range(0,8)]))
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return tile
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generatedTileData = []
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for y in range(0,vertTiles):
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for x in range(0,horizTiles):
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generatedTileData += generateTile(x,y,tilesheetPixels)
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tilesheetBIN.write(bytearray(generatedTileData))
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+358
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/*
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*--------------------------------------
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* Program Name: Terminal CE
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* Author: SuperbeeeLavaman
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* License: Apache License 2.0
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* Description: Dumb Terminal application for TI-84 Plus CE
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*--------------------------------------
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*/
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#include <srldrvce.h>
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#include <graphx.h>
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#include <debug.h>
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#include <keypadc.h>
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#include <stdbool.h>
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#include <string.h>
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#include <tice.h>
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#include <fileioc.h>
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#include <debug.h>
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srl_device_t srl;
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bool has_srl_device = false;
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uint8_t srl_buf[512];
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static usb_error_t handle_usb_event(usb_event_t event, void *event_data,
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usb_callback_data_t *callback_data __attribute__((unused))) {
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usb_error_t err;
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/* Delegate to srl USB callback */
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if ((err = srl_UsbEventCallback(event, event_data, callback_data)) != USB_SUCCESS)
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return err;
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/* Enable newly connected devices */
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if(event == USB_DEVICE_CONNECTED_EVENT && !(usb_GetRole() & USB_ROLE_DEVICE)) {
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usb_device_t device = event_data;
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dbg_printf("device connected\n");
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usb_ResetDevice(device);
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}
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/* Call srl_Open on newly enabled device, if there is not currently a serial device in use */
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if(event == USB_HOST_CONFIGURE_EVENT || (event == USB_DEVICE_ENABLED_EVENT && !(usb_GetRole() & USB_ROLE_DEVICE))) {
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/* If we already have a serial device, ignore the new one */
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if(has_srl_device) return USB_SUCCESS;
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usb_device_t device;
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if(event == USB_HOST_CONFIGURE_EVENT) {
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/* Use the device representing the USB host. */
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device = usb_FindDevice(NULL, NULL, USB_SKIP_HUBS);
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if(device == NULL) return USB_SUCCESS;
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} else {
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/* Use the newly enabled device */
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device = event_data;
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}
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/* Initialize the serial library with the newly attached device */
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srl_error_t error = srl_Open(&srl, device, srl_buf, sizeof srl_buf, SRL_INTERFACE_ANY, 9600);
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if(error) {
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/* Print the error code to the homescreen */
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dbg_printf("Error %d initting serial\n", error);
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return USB_SUCCESS;
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}
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dbg_printf("serial initialized\n");
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has_srl_device = true;
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}
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if(event == USB_DEVICE_DISCONNECTED_EVENT) {
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usb_device_t device = event_data;
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if(device == srl.dev) {
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dbg_printf("device disconnected\n");
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srl_Close(&srl);
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has_srl_device = false;
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}
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}
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return USB_SUCCESS;
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}
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uint8_t fontData;
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uint8_t fontBytes[2048];
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uint16_t renderGoal[1200];
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uint16_t renderCurrent[1200];
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int exit_Code = 0;
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uint24_t idx = 0;
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uint8_t cursorX = 0;
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uint8_t cursorY = 0;
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bool canUseFont = false;
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uint8_t idx8 = 0;
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uint8_t colour_red = 0xA0;
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uint8_t colour_green = 0x05;
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uint8_t colour_blue = 0x10;
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uint8_t colour_gray = 0x4A;
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uint8_t keyboardState = 0x00;
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bool newTiles = true;
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char keyactions[256] = {
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0xFD, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0xFE,
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" ", 0, 0, 0, 0, 0, 0, 0,
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";", 0, 0, 0, 0, 0, 0, 0,
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"?", 0, 0, 0, 0, 0, 0, 0,
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0x0D, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0xFC, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0xFE,
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" ", 0, 0, 0, 0, 0, 0, 0,
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":", 0, 0, 0, 0, 0, 0, 0,
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"!", 0, 0, 0, 0, 0, 0, 0,
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0x0D, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0xFF, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0xFC,
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"0", "1", "4", "7", ",", 0, 0, 0,
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".", "2", "5", "8", "(", 0, 0, 0,
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0, "3", "6", "9", ")", 0, 0, 0,
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0x0D, "+", "-", "*", "/", "^", 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0xFE, 0x03, 0x16,
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0, 0, 0, 0, 0, 0, 0, 0xFC,
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"~", 0, 0, 0, 0, 0, 0, 0,
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"<", 0, 0, 0, 0, 0, 0, 0,
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">", 0, 0, 0, 0, 0, 0, 0,
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0x0D, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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};
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int begin() {
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kb_EnableOnLatch();
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kb_ClearOnLatch();
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fontData = ti_Open("TermFont", "r");
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if (fontData == 0) {
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dbg_printf("dang, no font :(\n");
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canUseFont = false;
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} else {
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canUseFont = true;
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ti_Read(fontBytes, 1, 2048, fontData);
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}
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const usb_standard_descriptors_t *desc = srl_GetCDCStandardDescriptors();
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/* Initialize the USB driver with our event handler and the serial device descriptors */
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usb_error_t usb_error = usb_Init(handle_usb_event, NULL, desc, USB_DEFAULT_INIT_FLAGS);
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if(usb_error) {
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usb_Cleanup();
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printf("usb init error %u\n", usb_error);
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}
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idx = 0;
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while (idx < 80) {
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renderGoal[idx] = 0x200F;
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renderGoal[idx+1120] = 0x200F;
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idx += 1;
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}
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renderGoal[39] = 0xFC0F;
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return 0;
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}
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void scroll() {
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memcpy(renderGoal+80, renderGoal+120, 2000);
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memset(renderGoal+1080, 0, 80);
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newTiles = true;
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}
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int end() {
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usb_Cleanup();
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if (canUseFont) {
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if (ti_Close(fontData) == 0) {
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exit_Code = 1;
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}
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}
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return exit_Code;
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}
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bool step() {
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usb_HandleEvents();
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if(has_srl_device) {
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char in_buf[64];
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/* Read up to 64 bytes from the serial buffer */
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size_t bytes_read = srl_Read(&srl, in_buf, sizeof in_buf);
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/* Check for an error (e.g. device disconneced) */
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if(bytes_read < 0) {
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dbg_printf("error %d on srl_Read\n", bytes_read);
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has_srl_device = false;
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} else if(bytes_read > 0) {
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idx = 0;
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char symbol;
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char escape_code[16]
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while (idx < bytes_read) {
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symbol = in_buf[idx];
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int increment_X = 1;
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if (symbol == 0x27)
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if (symbol == 0x7F) {
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symbol = 0x20;
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cursorX -= (cursorX>0);
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increment_X = 0;
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}
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if (symbol == 0x0D) {
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cursorX = 0;
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cursorY += 1;
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symbol = 0x20;
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increment_X = 0;
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}
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if (symbol == 0x05) {
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srl_Write(&srl, "TerminalCE", 10);
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increment_X = 0;
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symbol = 0x20
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}
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if (cursorX >= 40) {
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cursorX = 0;
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cursorY += 1;
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}
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if (cursorY > 25) {
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scroll();
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cursorY = 25;
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}
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renderGoal[((40 * (cursorY+2)) + cursorX)] = (256*symbol+0xF0);
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cursorX += increment_X;
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idx += 1;
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}
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newTiles = true;
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}
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kb_Scan();
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idx8 = 0;
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idx = 0;
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char send[1];
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uint8_t keys = 0;
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while (idx < 8) {
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keys = kb_Data[idx];
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if (keys) {
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while (idx8 < 8) {
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if (keys & 0x01) {
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if (keyboardState > 3) { keyboardState = 0 ; }
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send[1] = keyactions[(64*keyboardState)+(8*idx)+idx8];
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}
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keys = (keys >> 1)
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idx8 += 1;
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}
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}
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idx += 1;
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}
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srl_Write(&srl, send, 1);
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}
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return !kb_On;
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}
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int renderTile(int indx) {
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int tileY = indx / 40;
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int tileX = indx - ( 40 * tileY );
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uint16_t tileData = renderGoal[indx];
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uint8_t symbol = (uint8_t)((tileData & 0xFF00) >> 8);
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uint8_t colour = (uint8_t)(tileData & 0x00FF);
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uint8_t fgColour = 0x00;
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uint8_t bgColour = 0x00;
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if (colour & 0b10000000) {
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fgColour |= colour_gray;
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}
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if (colour & 0b00001000) {
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bgColour |= colour_gray;
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}
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if (colour & 0b01000000) {
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fgColour |= colour_red;
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}
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if (colour & 0b00000100) {
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bgColour |= colour_red;
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}
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if (colour & 0b00100000) {
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fgColour |= colour_green;
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}
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if (colour & 0b00000010) {
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bgColour |= colour_green;
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}
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if (colour & 0b00010000) {
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fgColour |= colour_blue;
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}
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if (colour & 0b00000001) {
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bgColour |= colour_blue;
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}
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uint8_t pixelX = 0;
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uint8_t pixelY = 0;
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uint8_t rowData;
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while (pixelY < 8) {
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if (canUseFont) {
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rowData = fontBytes[(8*symbol)+pixelY];
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} else {
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rowData = symbol;
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}
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pixelX = 0;
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while (pixelX < 8) {
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bool pixelState = rowData & (1 << (7-pixelX));
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uint8_t pixelColour;
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if (pixelState) {
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pixelColour = fgColour;
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} else {
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pixelColour = bgColour;
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}
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gfx_SetColor(pixelColour);
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gfx_SetPixel(((8 * tileX)+pixelX),((8 * tileY)+pixelY));
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pixelX += 1;
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}
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pixelY += 1;
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}
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return 0;
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}
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int draw() {
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int drawIdx = 0;
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int renderedNow = 0;
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if (newTiles == false) {
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return 0;
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}
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while (renderedNow < 10) {
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if (renderCurrent[drawIdx] != renderGoal[drawIdx]) {
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exit_Code = renderTile(drawIdx);
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renderCurrent[drawIdx] = renderGoal[drawIdx];
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if (exit_Code != 0 ) {
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return exit_Code;
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}
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renderedNow += 1;
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}
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if (drawIdx > 1200) {
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newTiles = false;
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return 0;
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}
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drawIdx += 1;
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}
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return 0;
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}
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int main() {
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exit_Code = begin(); // No rendering allowed!
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if (exit_Code != 0 ) {
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return exit_Code;
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}
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gfx_Begin();
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gfx_ZeroScreen();
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gfx_SetDrawScreen();
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while (step()) { // No rendering allowed in step!
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exit_Code = draw(); // As little non-rendering logic as possible
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if (exit_Code != 0 ) {
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gfx_End();
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return exit_Code;
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}
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}
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gfx_End();
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return end();
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}
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Block a user