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Implementation of drawBitmap with background overload.

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schlammbad 2013-02-20 19:46:36 -08:00
parent 01273c2ad2
commit e5f3bc9440
1 changed files with 17 additions and 0 deletions
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17
Adafruit_GFX.cpp
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@ -345,6 +345,23 @@ void Adafruit_GFX::drawBitmap(int16_t x, int16_t y,
}
}
void Adafruit_GFX::drawBitmap(int16_t x, int16_t y,
const uint8_t *bitmap, int16_t w, int16_t h,
uint16_t color, uint16_t bg) {
int16_t i, j, byteWidth = (w + 7) / 8;
for(j=0; j<h; j++) {
for(i=0; i<w; i++ ) {
if(pgm_read_byte(bitmap + j * byteWidth + i / 8) & (128 >> (i & 7))) {
drawPixel(x+i, y+j, color);
}
else {
drawPixel(x+i, y+j, bg);
}
}
}
}
#if ARDUINO >= 100
size_t Adafruit_GFX::write(uint8_t c) {