49 lines
1.1 KiB
C
49 lines
1.1 KiB
C
// This is the command sequence that rotates the ST7789 driver coordinate frame
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writecommand(TFT_MADCTL);
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rotation = m % 4;
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switch (rotation) {
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case 0: // Portrait
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#ifdef CGRAM_OFFSET
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colstart = 0;
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rowstart = 0;
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#endif
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writedata(TFT_MAD_COLOR_ORDER);
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_width = _init_width;
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_height = _init_height;
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break;
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case 1: // Landscape (Portrait + 90)
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#ifdef CGRAM_OFFSET
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colstart = 0;
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rowstart = 0;
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#endif
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writedata(TFT_MAD_MX | TFT_MAD_MV | TFT_MAD_COLOR_ORDER);
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_width = _init_height;
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_height = _init_width;
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break;
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case 2: // Inverter portrait
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#ifdef CGRAM_OFFSET
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colstart = 0;
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rowstart = 80;
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#endif
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writedata(TFT_MAD_MX | TFT_MAD_MY | TFT_MAD_COLOR_ORDER);
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_width = _init_width;
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_height = _init_height;
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break;
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case 3: // Inverted landscape
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#ifdef CGRAM_OFFSET
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colstart = 80;
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rowstart = 0;
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#endif
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writedata(TFT_MAD_MV | TFT_MAD_MY | TFT_MAD_COLOR_ORDER);
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_width = _init_height;
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_height = _init_width;
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break;
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}
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