dreamcast/text_editor/keyboard.cpp

223 lines
7.2 KiB
C++

#include <bit>
#include "maple/maple_bus_ft6_key_scan_codes.hpp"
#include "maple/maple_bus_commands.hpp"
#include "maple/maple_bus_bits.hpp"
#include "maple/maple_host_command_writer.hpp"
#include "sh7091/serial.hpp"
#include "keyboard.hpp"
void do_device_request()
{
static uint8_t send_buf[1024] __attribute__((aligned(32)));
static uint8_t recv_buf[1024] __attribute__((aligned(32)));
auto writer = maple::host_command_writer(send_buf, recv_buf);
using command_type = maple::device_request;
using response_type = maple::device_status;
auto [host_command, host_response]
= writer.append_command_all_ports<command_type, response_type>();
maple::dma_start(send_buf, writer.send_offset,
recv_buf, writer.recv_offset);
maple::dma_wait_complete();
for (uint8_t port = 0; port < 4; port++) {
auto& bus_data = host_response[port].bus_data;
auto& data_fields = bus_data.data_fields;
if (bus_data.command_code != response_type::command_code) {
serial::string("port: ");
serial::integer<uint8_t>(port);
serial::string(" disconnected\n");
} else {
serial::string("port: ");
serial::integer<uint8_t>(port);
serial::string(" ft: ");
serial::integer<uint32_t>(std::byteswap(data_fields.device_id.ft));
serial::string(" fd[0]: ");
serial::integer<uint32_t>(std::byteswap(data_fields.device_id.fd[0]));
serial::string(" fd[1]: ");
serial::integer<uint32_t>(std::byteswap(data_fields.device_id.fd[1]));
serial::string(" fd[2]: ");
serial::integer<uint32_t>(std::byteswap(data_fields.device_id.fd[2]));
serial::string(" source_ap.lm_bus: ");
serial::integer<uint8_t>(bus_data.source_ap & ap::lm_bus::bit_mask);
}
}
}
void keyboard_do_get_condition(ft6::data_transfer::data_format& data)
{
static uint8_t send_buf[1024] __attribute__((aligned(32)));
static uint8_t recv_buf[1024] __attribute__((aligned(32)));
auto writer = maple::host_command_writer(send_buf, recv_buf);
{
using command_type = maple::device_request;
using response_type = maple::device_status;
writer.append_command_all_ports<command_type, response_type>(false);
}
using command_type = maple::get_condition;
using response_type = maple::data_transfer<ft6::data_transfer::data_format>;
auto [host_command, host_response]
= writer.append_command_all_ports<command_type, response_type>(true);
host_command->bus_data.data_fields.function_type = std::byteswap(function_type::keyboard);
maple::dma_start(send_buf, writer.send_offset,
recv_buf, writer.recv_offset);
maple::dma_wait_complete();
for (uint8_t port = 0; port < 1; port++) {
auto& bus_data = host_response[port].bus_data;
auto& data_fields = bus_data.data_fields;
if (bus_data.command_code != response_type::command_code) {
serial::integer<uint32_t>(bus_data.command_code);
serial::integer<uint32_t>(data_fields.function_type);
continue;
}
if ((std::byteswap(data_fields.function_type) & function_type::keyboard) == 0) {
continue;
}
data.modifier_key = data_fields.data.modifier_key;
data.led_state = data_fields.data.led_state;
data.scan_code_array[0] = data_fields.data.scan_code_array[0];
data.scan_code_array[1] = data_fields.data.scan_code_array[1];
data.scan_code_array[2] = data_fields.data.scan_code_array[2];
data.scan_code_array[3] = data_fields.data.scan_code_array[3];
data.scan_code_array[4] = data_fields.data.scan_code_array[4];
data.scan_code_array[5] = data_fields.data.scan_code_array[5];
return;
}
}
void keyboard_debug(ft6::data_transfer::data_format * keyboards, uint32_t frame_ix)
{
uint32_t this_frame = (frame_ix + 0) & 1;
bool difference = false;
for (int i = 0; i < 6; i++) {
if (keyboards[0].scan_code_array[i] != keyboards[1].scan_code_array[i]) {
difference = true;
break;
}
}
if (difference) {
for (int i = 0; i < 6; i++) {
//serial::integer<uint8_t>(keyboards[this_frame].scan_code_array[i], ' ');
}
//serial::string("\n");
}
}
constexpr inline bool is_modified(uint32_t modifier, uint32_t bit)
{
uint32_t mask = ~(bit);
return ((modifier & bit) != 0) && ((modifier & mask) == 0);
}
constexpr inline bool is_unmodified(uint32_t modifier)
{
return modifier == 0;
}
constexpr inline bool is_shifted(uint32_t modifier)
{
uint32_t bit = ft6::data_transfer::modifier_key::right_shift() | ft6::data_transfer::modifier_key::left_shift();
return is_modified(modifier, bit);
}
constexpr inline bool is_left_alted(uint32_t modifier)
{
uint32_t bit = (ft6::data_transfer::modifier_key::left_alt());
return is_modified(modifier, bit);
}
constexpr inline bool is_ctrled(uint32_t modifier)
{
uint32_t bit = (ft6::data_transfer::modifier_key::left_control() | ft6::data_transfer::modifier_key::right_control());
return is_modified(modifier, bit);
}
void keyboard_update(ft6::data_transfer::data_format * keyboards, uint32_t frame_ix, gap_buffer& gb, viewport_window& vw)
{
uint32_t this_frame = (frame_ix + 0) & 1;
uint32_t next_frame = (frame_ix + 1) & 1;
for (int i = 0; i < 6; i++) {
if (keyboards[this_frame].scan_code_array[i] == ft6::scan_code::no_operation)
break;
if (i < 5 && keyboards[this_frame].scan_code_array[i + 1] != ft6::scan_code::no_operation)
continue;
bool make = true;
for (int j = 0; j < 6; j++) {
if (keyboards[next_frame].scan_code_array[j] == keyboards[this_frame].scan_code_array[i]) {
make = false;
break;
}
}
if (make) {
// make
int modifier_key = keyboards[this_frame].modifier_key;
uint8_t scan_code = keyboards[this_frame].scan_code_array[i];
if (is_shifted(modifier_key) || is_unmodified(modifier_key)) {
if (scan_code >= ft6::scan_code::first_printable && scan_code <= ft6::scan_code::last_printable) {
bool shifted = is_shifted(modifier_key);
char_type code_point = ft6::scan_code::code_point[scan_code][shifted];
if (code_point != 0) {
gap_append(gb, code_point);
continue;
}
}
}
if (is_unmodified(modifier_key)) {
switch (scan_code) {
case ft6::scan_code::_return: gap_append(gb, '\n'); break;
case ft6::scan_code::backspace: gap_pop(gb); break;
case ft6::scan_code::spacebar: gap_append(gb, ' '); break;
case ft6::scan_code::left_arrow: gap_cursor_pos(gb, -1); break;
case ft6::scan_code::right_arrow: gap_cursor_pos(gb, 1); break;
case ft6::scan_code::up_arrow: gap_cursor_pos_line(gb, -1); break;
case ft6::scan_code::down_arrow: gap_cursor_pos_line(gb, 1); break;
default: break;
}
}
if (is_left_alted(modifier_key)) {
switch (scan_code) {
case ft6::scan_code::v_V:
vw.first_line -= 1;
if (vw.first_line < 0)
vw.first_line = 0;
break;
default: break;
}
}
if (is_ctrled(modifier_key)) {
switch (scan_code) {
case ft6::scan_code::v_V:
vw.first_line += 1;
if ((vw.first_line - 1) >= gb.line.length) {
vw.first_line = gb.line.length;
}
break;
default: break;
}
}
}
}
}