13
0
livetrax/libs/surfaces/tranzport/lcd.cc

121 lines
3.3 KiB
C++
Raw Normal View History

/*
* Copyright (C) 2006 Paul Davis
* Copyright (C) 2007 Michael Taht
*
* 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 2 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, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* */
#include <tranzport_control_protocol.h>
// doing these functions made me realize that screen_invalid should be lcd_isdamaged FIXME soon
bool TranzportControlProtocol::lcd_damage()
{
screen_invalidate();
return true;
}
bool TranzportControlProtocol::lcd_damage (int row, int col, int length)
{
std::bitset<ROWS*COLUMNS> mask1(0);
// there's an intrinsic to do this fast, darn it, or I'm just sleepy
for (int i = 0; i < length; i++) { mask1[i] = 1; }
std::bitset<ROWS*COLUMNS> mask(mask1 << (row*COLUMNS+col));
screen_invalid |= mask;
return true;
}
// Still working on the layering, arguably screen_invalid should be lcd_invalid
// or vice versa
bool TranzportControlProtocol::lcd_isdamaged ()
{
if(screen_invalid.any()) {
#if DEBUG_TRANZPORT > 5
printf("LCD is damaged somewhere, should redraw it\n");
#endif
return true;
}
return false;
}
bool TranzportControlProtocol::lcd_isdamaged (int row, int col, int length)
{
// there's an intrinsic to do this fast, darn it
std::bitset<ROWS*COLUMNS> mask1(0);
for (int i = 0; i < length; i++) { mask1[i] = 1; }
std::bitset<ROWS*COLUMNS> mask(mask1 << (row*COLUMNS+col));
mask &= screen_invalid;
if(mask.any()) {
#if DEBUG_TRANZPORT > 5
printf("row: %d,col: %d is damaged, should redraw it\n", row,col);
#endif
return true;
}
return false;
}
// lcd_clear would be a separate function for a smart display
// here it does nothing, but for the sake of completeness it should
// probably write the lcd, and while I'm on the topic it should probably
// take a row, col, length argument....
void
TranzportControlProtocol::lcd_clear ()
{
}
// These lcd commands are not universally used yet and may drop out of the api
int
TranzportControlProtocol::lcd_flush ()
{
return 0;
}
int
TranzportControlProtocol::lcd_write(uint8_t* cmd, uint32_t timeout_override)
{
int result;
#if (DEBUG_TRANZPORT_SCREEN > 0)
printf("VALID : %s\n", (screen_invalid.to_string()).c_str());
#endif
if ((result = write(cmd,timeout_override))) {
#if DEBUG_TRANZPORT > 4
printf("usb screen update failed for some reason... why? \nresult, cmd and data were %d %02x %02x %02x %02x %02x %02x %02x %02x\n",
result, cmd[0],cmd[1],cmd[2], cmd[3], cmd[4], cmd[5],cmd[6],cmd[7]);
#endif
}
return result;
}
void
TranzportControlProtocol::lcd_fill (uint8_t fill_char)
{
}
void
TranzportControlProtocol::lcd_print (int row, int col, const char* text)
{
print(row,col,text);
}
void TranzportControlProtocol::lcd_print_noretry (int row, int col, const char* text)
{
print(row,col,text);
}