void GxGDEW042T2_FPU::_writeToWindow(uint16_t xs, uint16_t ys, uint16_t xd, uint16_t yd, uint16_t w, uint16_t h)
{
//Serial.printf("_writeToWindow(%d, %d, %d, %d, %d, %d)\n", xs, ys, xd, yd, w, h);
// the screen limits are the hard limits
if (xs >= GxGDEW042T2_FPU_WIDTH) return;
if (ys >= GxGDEW042T2_FPU_HEIGHT) return;
if (xd >= GxGDEW042T2_FPU_WIDTH) return;
if (yd >= GxGDEW042T2_FPU_HEIGHT) return;
uint16_t xde = min(GxGDEW042T2_FPU_WIDTH, xd + w) - 1;
uint16_t yde = min(GxGDEW042T2_FPU_HEIGHT, yd + h) - 1;
// soft limits, must send as many bytes as set by _SetRamArea
uint16_t yse = ys + yde - yd;
uint16_t xss_d8 = xs / 8;
IO.writeCommandTransaction(0x91); // partial in
uint16_t xse_d8 = xss_d8 + _setPartialRamArea(xd, yd, xde, yde);
IO.writeCommandTransaction(0x13);
for (int16_t y1 = ys; y1 <= yse; y1++)
{
for (int16_t x1 = xss_d8; x1 < xse_d8; x1++)
{
uint16_t idx = y1 * (GxGDEW042T2_FPU_WIDTH / 8) + x1;
uint8_t data = (idx < sizeof(_buffer)) ? _buffer[idx] : 0x00;
IO.writeDataTransaction(~data);
}
}
delay(2);
IO.writeCommandTransaction(0x92); // partial out
}
void GxEPD2_270::writeScreenBufferAgain(uint8_t value)
{
if (!_using_partial_mode) _Init_Part();
_setPartialRamArea(0x14, 0, 0, WIDTH, HEIGHT);
for (uint32_t i = 0; i < uint32_t(WIDTH) * uint32_t(HEIGHT) / 8; i++)
{
_writeData(value);
}
}
void GxEPD2_270::_writeImagePart(uint8_t command, const uint8_t bitmap[], int16_t x_part, int16_t y_part, int16_t w_bitmap, int16_t h_bitmap,
int16_t x, int16_t y, int16_t w, int16_t h, bool invert, bool mirror_y, bool pgm)
{
if (_initial_write) writeScreenBuffer(); // initial full screen buffer clean
delay(1); // yield() to avoid WDT on ESP8266 and ESP32
if ((w_bitmap < 0) || (h_bitmap < 0) || (w < 0) || (h < 0)) return;
if ((x_part < 0) || (x_part >= w_bitmap)) return;
if ((y_part < 0) || (y_part >= h_bitmap)) return;
int16_t wb_bitmap = (w_bitmap + 7) / 8; // width bytes, bitmaps are padded
x_part -= x_part % 8; // byte boundary
w = w_bitmap - x_part < w ? w_bitmap - x_part : w; // limit
h = h_bitmap - y_part < h ? h_bitmap - y_part : h; // limit
x -= x % 8; // byte boundary
w = 8 * ((w + 7) / 8); // byte boundary, bitmaps are padded
int16_t x1 = x < 0 ? 0 : x; // limit
int16_t y1 = y < 0 ? 0 : y; // limit
int16_t w1 = x + w < int16_t(WIDTH) ? w : int16_t(WIDTH) - x; // limit
int16_t h1 = y + h < int16_t(HEIGHT) ? h : int16_t(HEIGHT) - y; // limit
int16_t dx = x1 - x;
int16_t dy = y1 - y;
w1 -= dx;
h1 -= dy;
if ((w1 <= 0) || (h1 <= 0)) return;
if (!_using_partial_mode) _Init_Part();
_setPartialRamArea(command, x1, y1, w1, h1);
for (int16_t i = 0; i < h1; i++)
{
for (int16_t j = 0; j < w1 / 8; j++)
{
uint8_t data;
// use wb_bitmap, h_bitmap of bitmap for index!
int16_t idx = mirror_y ? x_part / 8 + j + dx / 8 + ((h_bitmap - 1 - (y_part + i + dy))) * wb_bitmap : x_part / 8 + j + dx / 8 + (y_part + i + dy) * wb_bitmap;
if (pgm)
{
#if defined(__AVR) || defined(ESP8266) || defined(ESP32)
data = pgm_read_byte(&bitmap[idx]);
#else
data = bitmap[idx];
#endif
}
else
{
data = bitmap[idx];
}
if (invert) data = ~data;
_writeData(data);
}
}
delay(1); // yield() to avoid WDT on ESP8266 and ESP32
}
void GxEPD2_213c::refresh(int16_t x, int16_t y, int16_t w, int16_t h)
{
x -= x % 8; // byte boundary
w -= x % 8; // byte boundary
int16_t x1 = x < 0 ? 0 : x; // limit
int16_t y1 = y < 0 ? 0 : y; // limit
int16_t w1 = x + w < int16_t(WIDTH) ? w : int16_t(WIDTH) - x; // limit
int16_t h1 = y + h < int16_t(HEIGHT) ? h : int16_t(HEIGHT) - y; // limit
w1 -= x1 - x;
h1 -= y1 - y;
_Init_Part();
_setPartialRamArea(x1, y1, w1, h1);
_Update_Part();
}
void GxEPD2_213c::writeScreenBuffer(uint8_t black_value, uint8_t color_value)
{
_initial_write = false; // initial full screen buffer clean done
_Init_Part();
_writeCommand(0x91); // partial in
_setPartialRamArea(0, 0, WIDTH, HEIGHT);
_writeCommand(0x10);
for (uint32_t i = 0; i < uint32_t(WIDTH) * uint32_t(HEIGHT) / 8; i++)
{
_writeData(black_value);
}
_writeCommand(0x13);
for (uint32_t i = 0; i < uint32_t(WIDTH) * uint32_t(HEIGHT) / 8; i++)
{
_writeData(color_value);
}
_writeCommand(0x92); // partial out
}
void GxGDEW042T2_FPU::eraseDisplay(bool using_partial_update)
{
if (_current_page != -1) return;
if (using_partial_update)
{
_using_partial_mode = true; // remember
_wakeUp();
_Init_PartialUpdate();
// set full screen
IO.writeCommandTransaction(0x91); // partial in
_setPartialRamArea(0, 0, GxGDEW042T2_FPU_WIDTH - 1, GxGDEW042T2_FPU_HEIGHT - 1);
IO.writeCommandTransaction(0x13);
for (uint32_t i = 0; i < GxGDEW042T2_FPU_BUFFER_SIZE; i++)
{
IO.writeDataTransaction(0xFF);
}
IO.writeCommandTransaction(0x10);
for (uint32_t i = 0; i < GxGDEW042T2_FPU_BUFFER_SIZE; i++)
{
IO.writeDataTransaction(0xFF);
}
IO.writeCommandTransaction(0x92); // partial out
IO.writeCommandTransaction(0x12); //display refresh
_waitWhileBusy("eraseDisplay");
}
else
{
_using_partial_mode = false; // remember
_wakeUp();
IO.writeCommandTransaction(0x13);
for (uint32_t i = 0; i < GxGDEW042T2_FPU_BUFFER_SIZE; i++)
{
IO.writeDataTransaction(0xFF);
}
IO.writeCommandTransaction(0x12); //display refresh
_waitWhileBusy("eraseDisplay");
_sleep();
}
}
void GxEPD2_213c::writeImage(const uint8_t* black, const uint8_t* color, int16_t x, int16_t y, int16_t w, int16_t h, bool invert, bool mirror_y, bool pgm)
{
if (_initial_write) writeScreenBuffer(); // initial full screen buffer clean
delay(1); // yield() to avoid WDT on ESP8266 and ESP32
int16_t wb = (w + 7) / 8; // width bytes, bitmaps are padded
x -= x % 8; // byte boundary
w = wb * 8; // byte boundary
int16_t x1 = x < 0 ? 0 : x; // limit
int16_t y1 = y < 0 ? 0 : y; // limit
int16_t w1 = x + w < int16_t(WIDTH) ? w : int16_t(WIDTH) - x; // limit
int16_t h1 = y + h < int16_t(HEIGHT) ? h : int16_t(HEIGHT) - y; // limit
int16_t dx = x1 - x;
int16_t dy = y1 - y;
w1 -= dx;
h1 -= dy;
if ((w1 <= 0) || (h1 <= 0)) return;
_Init_Part();
_writeCommand(0x91); // partial in
_setPartialRamArea(x1, y1, w1, h1);
_writeCommand(0x10);
for (int16_t i = 0; i < h1; i++)
{
for (int16_t j = 0; j < w1 / 8; j++)
{
uint8_t data = 0xFF;
if (black)
{
// use wb, h of bitmap for index!
int16_t idx = mirror_y ? j + dx / 8 + ((h - 1 - (i + dy))) * wb : j + dx / 8 + (i + dy) * wb;
if (pgm)
{
#if defined(__AVR) || defined(ESP8266) || defined(ESP32)
data = pgm_read_byte(&black[idx]);
#else
data = black[idx];
#endif
}
else
{
data = black[idx];
}
if (invert) data = ~data;
}
_writeData(data);
}
}
_writeCommand(0x13);
for (int16_t i = 0; i < h1; i++)
{
for (int16_t j = 0; j < w1 / 8; j++)
{
uint8_t data = 0xFF;
if (color)
{
// use wb, h of bitmap for index!
int16_t idx = mirror_y ? j + dx / 8 + ((h - 1 - (i + dy))) * wb : j + dx / 8 + (i + dy) * wb;
if (pgm)
{
#if defined(__AVR) || defined(ESP8266) || defined(ESP32)
data = pgm_read_byte(&color[idx]);
#else
data = color[idx];
#endif
}
else
{
data = color[idx];
}
if (invert) data = ~data;
}
_writeData(data);
}
}
_writeCommand(0x92); // partial out
delay(1); // yield() to avoid WDT on ESP8266 and ESP32
}
void GxGDEW042T2_FPU::updateWindow(uint16_t x, uint16_t y, uint16_t w, uint16_t h, bool using_rotation)
{
if (_current_page != -1) return;
if (using_rotation)
{
switch (getRotation())
{
case 1:
swap(x, y);
swap(w, h);
x = GxGDEW042T2_FPU_WIDTH - x - w - 1;
break;
case 2:
x = GxGDEW042T2_FPU_WIDTH - x - w - 1;
y = GxGDEW042T2_FPU_HEIGHT - y - h - 1;
break;
case 3:
swap(x, y);
swap(w, h);
y = GxGDEW042T2_FPU_HEIGHT - y - h - 1;
break;
}
}
//fillScreen(0x0);
if (x >= GxGDEW042T2_FPU_WIDTH) return;
if (y >= GxGDEW042T2_FPU_HEIGHT) return;
// x &= 0xFFF8; // byte boundary, not here, use encompassing rectangle
uint16_t xe = min(GxGDEW042T2_FPU_WIDTH, x + w) - 1;
uint16_t ye = min(GxGDEW042T2_FPU_HEIGHT, y + h) - 1;
// x &= 0xFFF8; // byte boundary, not needed here
uint16_t xs_bx = x / 8;
uint16_t xe_bx = (xe + 7) / 8;
if (!_using_partial_mode) _wakeUp();
_using_partial_mode = true;
_Init_PartialUpdate();
IO.writeCommandTransaction(0x91); // partial in
_setPartialRamArea(x, y, xe, ye);
IO.writeCommandTransaction(0x13);
for (int16_t y1 = y; y1 <= ye; y1++)
{
for (int16_t x1 = xs_bx; x1 < xe_bx; x1++)
{
uint16_t idx = y1 * (GxGDEW042T2_FPU_WIDTH / 8) + x1;
uint8_t data = (idx < sizeof(_buffer)) ? _buffer[idx] : 0x00;
IO.writeDataTransaction(~data);
}
}
IO.writeCommandTransaction(0x92); // partial out
IO.writeCommandTransaction(0x12); //display refresh
_waitWhileBusy("updateWindow");
IO.writeCommandTransaction(0x91); // partial in
_setPartialRamArea(x, y, xe, ye);
IO.writeCommandTransaction(0x13);
for (int16_t y1 = y; y1 <= ye; y1++)
{
for (int16_t x1 = xs_bx; x1 < xe_bx; x1++)
{
uint16_t idx = y1 * (GxGDEW042T2_FPU_WIDTH / 8) + x1;
uint8_t data = (idx < sizeof(_buffer)) ? _buffer[idx] : 0x00;
IO.writeDataTransaction(~data);
}
}
IO.writeCommandTransaction(0x92); // partial out
}
void GxGDEW042T2_FPU::drawBitmap(const uint8_t *bitmap, uint32_t size, int16_t mode)
{
if (_current_page != -1) return;
if (mode & bm_default) mode |= bm_normal;
if (mode & bm_partial_update)
{
_using_partial_mode = true; // remember
_wakeUp();
_Init_PartialUpdate();
// set full screen
IO.writeCommandTransaction(0x91); // partial in
_setPartialRamArea(0, 0, GxGDEW042T2_FPU_WIDTH - 1, GxGDEW042T2_FPU_HEIGHT - 1);
IO.writeCommandTransaction(0x13);
for (uint32_t i = 0; i < GxGDEW042T2_FPU_BUFFER_SIZE; i++)
{
uint8_t data = 0xFF; // white is 0xFF on device
if (i < size)
{
#if defined(__AVR) || defined(ESP8266) || defined(ESP32)
data = pgm_read_byte(&bitmap[i]);
#else
data = bitmap[i];
#endif
if (mode & bm_invert) data = ~data;
}
IO.writeDataTransaction(data);
}
IO.writeCommandTransaction(0x92); // partial out
IO.writeCommandTransaction(0x12); //display refresh
_waitWhileBusy("drawBitmap");
// update erase buffer
IO.writeCommandTransaction(0x91); // partial in
_setPartialRamArea(0, 0, GxGDEW042T2_FPU_WIDTH - 1, GxGDEW042T2_FPU_HEIGHT - 1);
IO.writeCommandTransaction(0x13);
for (uint32_t i = 0; i < GxGDEW042T2_FPU_BUFFER_SIZE; i++)
{
uint8_t data = 0xFF; // white is 0xFF on device
if (i < size)
{
#if defined(__AVR) || defined(ESP8266) || defined(ESP32)
data = pgm_read_byte(&bitmap[i]);
#else
data = bitmap[i];
#endif
if (mode & bm_invert) data = ~data;
}
IO.writeDataTransaction(data);
}
IO.writeCommandTransaction(0x92); // partial out
_waitWhileBusy("drawBitmap");
}
else
{
_using_partial_mode = false; // remember
_wakeUp();
IO.writeCommandTransaction(0x13);
for (uint32_t i = 0; i < GxGDEW042T2_FPU_BUFFER_SIZE; i++)
{
uint8_t data = 0xFF; // white is 0xFF on device
if (i < size)
{
#if defined(__AVR) || defined(ESP8266) || defined(ESP32)
data = pgm_read_byte(&bitmap[i]);
#else
data = bitmap[i];
#endif
if (mode & bm_invert) data = ~data;
}
IO.writeDataTransaction(data);
}
IO.writeCommandTransaction(0x12); //display refresh
_waitWhileBusy("drawBitmap");
_sleep();
}
}
