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Circles (working)

This commit is contained in:
KTOWN 2013-10-07 23:38:44 +02:00
parent 02d8870981
commit 47dd3fc899
2 changed files with 64 additions and 0 deletions
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57
Adafruit_RA8875.cpp
View File

@ -180,6 +180,63 @@ void Adafruit_RA8875::fillRect(void) {
writeData(RA8875_DCR_LINESQUTRI_START | RA8875_DCR_FILL | RA8875_DCR_DRAWSQUARE);
}
void Adafruit_RA8875::circleHelper(int16_t x0, int16_t y0, int16_t r, uint16_t color, bool filled)
{
/* Set X */
writeCommand(0x99);
writeData(x0);
writeCommand(0x9a);
writeData(x0 >> 8);
/* Set Y */
writeCommand(0x9b);
writeData(y0);
writeCommand(0x9c);
writeData(y0 >> 8);
/* Set Radius */
writeCommand(0x9d);
writeData(r);
/* Set Color */
writeCommand(0x63);
writeData((color & 0xf800) >> 11);
writeCommand(0x64);
writeData((color & 0x07e0) >> 5);
writeCommand(0x65);
writeData((color & 0x001f));
/* Draw! */
writeCommand(RA8875_DCR);
if (filled)
{
writeData(RA8875_DCR_CIRCLE_START | RA8875_DCR_FILL);
}
else
{
writeData(RA8875_DCR_CIRCLE_START | RA8875_DCR_NOFILL);
}
/* Wait for the command to finish */
bool finished = false;
while (!finished)
{
uint8_t temp = readReg(RA8875_DCR);
if (!(temp & RA8875_DCR_CIRCLE_STATUS))
finished = true;
}
}
void Adafruit_RA8875::drawCircle(int16_t x0, int16_t y0, int16_t r, uint16_t color)
{
circleHelper(x0, y0, r, color, false);
}
void Adafruit_RA8875::fillCircle(int16_t x0, int16_t y0, int16_t r, uint16_t color)
{
circleHelper(x0, y0, r, color, true);
}
/************************* Mid Level ***********************************/
void Adafruit_RA8875::GPIOX(boolean on) {

7
Adafruit_RA8875.h
View File

@ -16,6 +16,10 @@ class Adafruit_RA8875 {
void graphicsMode(void);
void setXY(uint16_t x, uint16_t y);
void fillRect(void);
/* HW accelerated wrapper functions */
void drawCircle(int16_t x0, int16_t y0, int16_t r, uint16_t color);
void fillCircle(int16_t x0, int16_t y0, int16_t r, uint16_t color);
/* Backlight */
void GPIOX(boolean on);
@ -43,6 +47,9 @@ class Adafruit_RA8875 {
private:
void PLLinit(void);
void initialize(void);
/* GFX Helper Functions */
void circleHelper(int16_t x0, int16_t y0, int16_t r, uint16_t color, bool filled);
uint8_t _cs, _rst;
uint16_t _width, _height;