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// This is the command sequence that rotates the ST7735 driver coordinate frame
rotation = m % 4; // Limit the range of values to 0-3
writecommand(TFT_MADCTL);
switch (rotation) {
case 0:
if (tabcolor == INITR_BLACKTAB) {
writedata(TFT_MAD_MX | TFT_MAD_MY | TFT_MAD_RGB);
} else if(tabcolor == INITR_GREENTAB2) {
writedata(TFT_MAD_MX | TFT_MAD_MY | TFT_MAD_RGB);
colstart = 2;
rowstart = 1;
} else if(tabcolor == INITR_GREENTAB3) {
writedata(TFT_MAD_MX | TFT_MAD_MY | TFT_MAD_BGR);
colstart = 2;
rowstart = 3;
} else if(tabcolor == INITR_GREENTAB128) {
writedata(TFT_MAD_MX | TFT_MAD_MY | TFT_MAD_MH | TFT_MAD_BGR);
colstart = 0;
rowstart = 32;
} else if(tabcolor == INITR_GREENTAB160x80) {
writedata(TFT_MAD_MX | TFT_MAD_MY | TFT_MAD_MH | TFT_MAD_BGR);
colstart = 26;
rowstart = 1;
} else if(tabcolor == INITR_REDTAB160x80) {
writedata(TFT_MAD_MX | TFT_MAD_MY | TFT_MAD_MH | TFT_MAD_BGR);
colstart = 24;
rowstart = 0;
} else if(tabcolor == INITB) {
writedata(TFT_MAD_MX | TFT_MAD_RGB);
} else {
writedata(TFT_MAD_MX | TFT_MAD_MY | TFT_MAD_BGR);
}
_width = _init_width;
_height = _init_height;
break;
case 1:
if (tabcolor == INITR_BLACKTAB) {
writedata(TFT_MAD_MY | TFT_MAD_MV | TFT_MAD_RGB);
} else if(tabcolor == INITR_GREENTAB2) {
writedata(TFT_MAD_MY | TFT_MAD_MV | TFT_MAD_RGB);
colstart = 1;
rowstart = 2;
} else if(tabcolor == INITR_GREENTAB3) {
writedata(TFT_MAD_MY | TFT_MAD_MV | TFT_MAD_BGR);
colstart = 3;
rowstart = 2;
} else if(tabcolor == INITR_GREENTAB128) {
writedata(TFT_MAD_MV | TFT_MAD_MY | TFT_MAD_BGR);
colstart = 32;
rowstart = 0;
} else if(tabcolor == INITR_GREENTAB160x80) {
writedata(TFT_MAD_MV | TFT_MAD_MY | TFT_MAD_BGR);
colstart = 1;
rowstart = 26;
} else if(tabcolor == INITR_REDTAB160x80) {
writedata(TFT_MAD_MV | TFT_MAD_MY | TFT_MAD_BGR);
colstart = 0;
rowstart = 24;
} else if(tabcolor == INITB) {
writedata(TFT_MAD_MV | TFT_MAD_MX | TFT_MAD_MY | TFT_MAD_RGB);
} else {
writedata(TFT_MAD_MY | TFT_MAD_MV | TFT_MAD_BGR);
}
_width = _init_height;
_height = _init_width;
break;
case 2:
if (tabcolor == INITR_BLACKTAB) {
writedata(TFT_MAD_RGB);
} else if(tabcolor == INITR_GREENTAB2) {
writedata(TFT_MAD_RGB);
colstart = 2;
rowstart = 1;
} else if(tabcolor == INITR_GREENTAB3) {
writedata(TFT_MAD_BGR);
colstart = 2;
rowstart = 1;
} else if(tabcolor == INITR_GREENTAB128) {
writedata(TFT_MAD_BGR);
colstart = 0;
rowstart = 0;
} else if(tabcolor == INITR_GREENTAB160x80) {
writedata(TFT_MAD_BGR);
colstart = 26;
rowstart = 1;
} else if(tabcolor == INITR_REDTAB160x80) {
writedata(TFT_MAD_BGR);
colstart = 24;
rowstart = 0;
} else if(tabcolor == INITB) {
writedata(TFT_MAD_MY | TFT_MAD_RGB);
} else {
writedata(TFT_MAD_BGR);
}
_width = _init_width;
_height = _init_height;
break;
case 3:
if (tabcolor == INITR_BLACKTAB) {
writedata(TFT_MAD_MX | TFT_MAD_MV | TFT_MAD_RGB);
} else if(tabcolor == INITR_GREENTAB2) {
writedata(TFT_MAD_MX | TFT_MAD_MV | TFT_MAD_RGB);
colstart = 1;
rowstart = 2;
} else if(tabcolor == INITR_GREENTAB3) {
writedata(TFT_MAD_MX | TFT_MAD_MV | TFT_MAD_BGR);
colstart = 1;
rowstart = 2;
} else if(tabcolor == INITR_GREENTAB128) {
writedata(TFT_MAD_MX | TFT_MAD_MV | TFT_MAD_BGR);
colstart = 0;
rowstart = 0;
} else if(tabcolor == INITR_GREENTAB160x80) {
writedata(TFT_MAD_MX | TFT_MAD_MV | TFT_MAD_BGR);
colstart = 1;
rowstart = 26;
} else if(tabcolor == INITR_REDTAB160x80) {
writedata(TFT_MAD_MX | TFT_MAD_MV | TFT_MAD_BGR);
colstart = 0;
rowstart = 24;
} else if(tabcolor == INITB) {
writedata(TFT_MAD_MV | TFT_MAD_RGB);
} else {
writedata(TFT_MAD_MX | TFT_MAD_MV | TFT_MAD_BGR);
}
_width = _init_height;
_height = _init_width;
break;
// These next rotations are for bottum up BMP drawing
/* case 4:
writedata(ST7735_TFT_MAD_MX | ST7735_TFT_MAD_MY | ST7735_TFT_MAD_BGR);
_width = _init_width;
_height = _init_height;
break;
case 5:
writedata(ST7735_TFT_MAD_MV | ST7735_TFT_MAD_MX | ST7735_TFT_MAD_BGR);
_width = _init_height;
_height = _init_width;
break;
case 6:
writedata(ST7735_TFT_MAD_BGR);
_width = _init_width;
_height = _init_height;
break;
case 7:
writedata(ST7735_TFT_MAD_MY | ST7735_TFT_MAD_MV | ST7735_TFT_MAD_BGR);
_width = _init_height;
_height = _init_width;
break;
*/
}
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