/**
* @brief Draws a pixel on the display.
*
* @param[in] x X location of the pixel
* @param[in] y Y location of the pixel
* @param[in] color The color of the pixel
*
* @notapi
*/
void GDISP_LLD(drawpixel)(coord_t x, coord_t y, color_t color) {
#if GDISP_NEED_VALIDATION || GDISP_NEED_CLIP
if (x < GDISP.clipx0 || y < GDISP.clipy0 || x >= GDISP.clipx1 || y >= GDISP.clipy1) return;
#endif
lld_lcdSetCursor(x, y);
lld_lcdWriteReg(0x0022, color);
}
static void lld_lcdSetViewPort(uint16_t x, uint16_t y, uint16_t cx, uint16_t cy) {
switch(GDISP.Orientation) {
case GDISP_ROTATE_0:
lld_lcdWriteReg(0x0050, x);
lld_lcdWriteReg(0x0051, x + cx - 1);
lld_lcdWriteReg(0x0052, y);
lld_lcdWriteReg(0x0053, y + cy - 1);
break;
case GDISP_ROTATE_90:
lld_lcdWriteReg(0x0050, y);
lld_lcdWriteReg(0x0051, y + cy - 1);
lld_lcdWriteReg(0x0052, x);
lld_lcdWriteReg(0x0053, x + cx - 1);
break;
case GDISP_ROTATE_180:
lld_lcdWriteReg(0x0050, x);
lld_lcdWriteReg(0x0051, x + cx - 1);
lld_lcdWriteReg(0x0052, y);
lld_lcdWriteReg(0x0053, y + cy - 1);
break;
case GDISP_ROTATE_270:
lld_lcdWriteReg(0x0050, y);
lld_lcdWriteReg(0x0051, y + cy - 1);
lld_lcdWriteReg(0x0052, x);
lld_lcdWriteReg(0x0053, x + cx - 1);
break;
}
lld_lcdSetCursor(x, y);
}
/**
* @brief Clear the display.
* @note Optional - The high level driver can emulate using software.
*
* @param[in] color The color of the pixel
*
* @notapi
*/
void GDISP_LLD(clear)(color_t color) {
unsigned i;
lld_lcdSetCursor(0, 0);
lld_lcdWriteStreamStart();
for(i = 0; i < SCREEN_WIDTH * SCREEN_HEIGHT; i++)
lld_lcdWriteData(color);
lld_lcdWriteStreamStop();
}
void gdisp_lld_clear(color_t color) {
unsigned i;
lld_lcdSetCursor(0, 0);
lld_lcdWriteStreamStart();
for(i = 0; i < GDISP_SCREEN_WIDTH * GDISP_SCREEN_HEIGHT; i++)
lld_lcdWriteData(color);
lld_lcdWriteStreamStop();
}
static void lld_lcdSetViewPort(uint16_t x, uint16_t y, uint16_t cx, uint16_t cy)
{
lld_lcdSetCursor(x, y);
/* Reg 0x44 - Horizontal RAM address position
* Upper Byte - HEA
* Lower Byte - HSA
* 0 <= HSA <= HEA <= 0xEF
* Reg 0x45,0x46 - Vertical RAM address position
* Lower 9 bits gives 0-511 range in each value
* 0 <= Reg(0x45) <= Reg(0x46) <= 0x13F
*/
switch(GDISP.Orientation) {
case portrait:
lld_lcdWriteReg(0x44, (((x+cx-1) << 8) & 0xFF00 ) | (x & 0x00FF));
lld_lcdWriteReg(0x45, y & 0x01FF);
lld_lcdWriteReg(0x46, (y+cy-1) & 0x01FF);
break;
case landscape:
lld_lcdWriteReg(0x44, (((y+cy-1) << 8) & 0xFF00) | (y & 0x00FF));
lld_lcdWriteReg(0x45, x & 0x01FF);
lld_lcdWriteReg(0x46, (x+cx-1) & 0x01FF);
break;
case portraitInv:
lld_lcdWriteReg(0x44, (((SCREEN_WIDTH-x-1) & 0x00FF) << 8) | ((SCREEN_WIDTH - (x+cx)) & 0x00FF));
lld_lcdWriteReg(0x45, (SCREEN_HEIGHT-(y+cy)) & 0x01FF);
lld_lcdWriteReg(0x46, (SCREEN_HEIGHT-y-1) & 0x01FF);
break;
case landscapeInv:
lld_lcdWriteReg(0x44, (((SCREEN_WIDTH - y - 1) & 0x00FF) << 8) | ((SCREEN_WIDTH - (y+cy)) & 0x00FF));
lld_lcdWriteReg(0x45, (SCREEN_HEIGHT - (x+cx)) & 0x01FF);
lld_lcdWriteReg(0x46, (SCREEN_HEIGHT - x - 1) & 0x01FF);
break;
}
lld_lcdSetCursor(x, y);
}
/**
* @brief Get the color of a particular pixel.
* @note Optional.
* @note If x,y is off the screen, the result is undefined.
*
* @param[in] x, y The start of the text
*
* @notapi
*/
color_t GDISP_LLD(getpixelcolor)(coord_t x, coord_t y) {
color_t color;
#if GDISP_NEED_VALIDATION || GDISP_NEED_CLIP
if (x < 0 || x >= GDISP.Width || y < 0 || y >= GDISP.Height) return 0;
#endif
lld_lcdSetCursor(x, y);
lld_lcdWriteStreamStart();
color = lld_lcdReadData();
color = lld_lcdReadData();
lld_lcdWriteStreamStop();
return color;
}
/**
* @brief Get the color of a particular pixel.
* @note Optional.
* @note If x,y is off the screen, the result is undefined.
*
* @param[in] x, y The start of the text
*
* @notapi
*/
color_t GDISP_LLD(getpixelcolor)(coord_t x, coord_t y) {
/* This routine is marked "DO NOT USE" in the original
* GLCD driver. We just keep our GDISP_HARDWARE_READPIXEL
* turned off for now.
*/
color_t color;
#if GDISP_NEED_VALIDATION
if (x >= GDISP.Width || y >= GDISP.Height) return 0;
#endif
lld_lcdSetCursor(x, y);
lld_lcdWriteStreamStart();
color = lld_lcdReadData();
color = lld_lcdReadData();
lld_lcdWriteStreamStop();
return color;
}
