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ST7789: Fix 240x240 display rotations.

This commit is contained in:
Phil Howard 2022-06-08 13:01:08 +01:00
parent b13470b4fb
commit 4585e5ec0f
1 changed files with 38 additions and 11 deletions
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49
drivers/st7789/st7789.cpp
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@ -119,18 +119,45 @@ namespace pimoroni {
// 240x240 Square and Round LCD Breakouts
if(width == 240 && height == 240) {
caset[0] = 0;
caset[1] = 239;
if(round) {
raset[0] = 40;
raset[1] = 279;
} else {
raset[0] = rotate180 ? 80 : 0;
raset[1] = rotate180 ? 329 : 239;
int row_offset = round ? 40 : 80;
int col_offset = 0;
switch(rotate) {
case ROTATE_0:
if (!round) row_offset = 0;
caset[0] = col_offset;
caset[1] = width + col_offset - 1;
raset[0] = row_offset;
raset[1] = width + row_offset - 1;
madctl = MADCTL::HORIZ_ORDER;
break;
case ROTATE_90:
if (!round) row_offset = 0;
caset[0] = row_offset;
caset[1] = width + row_offset - 1;
raset[0] = col_offset;
raset[1] = width + col_offset - 1;
madctl = MADCTL::HORIZ_ORDER | MADCTL::COL_ORDER | MADCTL::SWAP_XY;
break;
case ROTATE_180:
caset[0] = col_offset;
caset[1] = width + col_offset - 1;
raset[0] = row_offset;
raset[1] = width + row_offset - 1;
madctl = MADCTL::HORIZ_ORDER | MADCTL::COL_ORDER | MADCTL::ROW_ORDER;
break;
case ROTATE_270:
caset[0] = row_offset;
caset[1] = width + row_offset - 1;
raset[0] = col_offset;
raset[1] = width + col_offset - 1;
madctl = MADCTL::ROW_ORDER | MADCTL::SWAP_XY;
break;
}
madctl = rotate180 ? (MADCTL::COL_ORDER | MADCTL::ROW_ORDER) : 0;
if (rotate == ROTATE_90) madctl |= MADCTL::SWAP_XY;
madctl |= MADCTL::HORIZ_ORDER;
}
// Pico Display