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@ -43,15 +43,15 @@ static void display_unsleep(void)
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#endif
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}
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static uint16_t BUFFER_OFFSET_X = 0, BUFFER_OFFSET_Y = 0;
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static struct {
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uint16_t x, y;
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} BUFFER_OFFSET;
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static void display_set_window(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1)
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{
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#if DISPLAY_ILI9341V || DISPLAY_ST7789V
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x0 += BUFFER_OFFSET_X;
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x1 += BUFFER_OFFSET_X;
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y0 += BUFFER_OFFSET_Y;
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y1 += BUFFER_OFFSET_Y;
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x0 += BUFFER_OFFSET.x; x1 += BUFFER_OFFSET.x;
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y0 += BUFFER_OFFSET.y; y1 += BUFFER_OFFSET.y;
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CMD(0x2A); DATA(x0 >> 8); DATA(x0 & 0xFF); DATA(x1 >> 8); DATA(x1 & 0xFF); // column addr set
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CMD(0x2B); DATA(y0 >> 8); DATA(y0 & 0xFF); DATA(y1 >> 8); DATA(y1 & 0xFF); // row addr set
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CMD(0x2C);
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@ -66,8 +66,8 @@ void display_set_orientation(int degrees)
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#define MY (1 << 7)
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// MADCTL: Memory Data Access Control
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// reference section 9.3 in the ILI9341 manual; 8.12 in the ST7789V manual
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BUFFER_OFFSET_X = 0;
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BUFFER_OFFSET_Y = 0;
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BUFFER_OFFSET.x = 0;
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BUFFER_OFFSET.y = 0;
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uint8_t display_command_parameter = 0;
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switch (degrees) {
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case 0:
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@ -78,11 +78,11 @@ void display_set_orientation(int degrees)
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break;
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case 180:
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display_command_parameter = MX | MY;
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BUFFER_OFFSET_Y = MAX_DISPLAY_RESY - DISPLAY_RESY;
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BUFFER_OFFSET.y = MAX_DISPLAY_RESY - DISPLAY_RESY;
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break;
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case 270:
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display_command_parameter = MV | MY;
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BUFFER_OFFSET_X = MAX_DISPLAY_RESY - DISPLAY_RESX;
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BUFFER_OFFSET.x = MAX_DISPLAY_RESY - DISPLAY_RESX;
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break;
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}
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CMD(0x36); DATA(display_command_parameter);
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