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lcdDrawLine() speed improvement

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Tectu 2012-07-24 03:24:50 +02:00
parent 5f268adaaa
commit fd65a3c5b5
1 changed files with 48 additions and 40 deletions
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8
glcd/glcd.c
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@ -267,6 +267,13 @@ void lcdVerticalScroll(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1, uint1
} }
void lcdDrawLine(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1, uint16_t color) { void lcdDrawLine(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1, uint16_t color) {
// speed improvement if vertical or horizontal
if(x0 == x1) {
lcdFillArea(x0, y0, x0+1, y1, color);
} else if (y0 == y1) {
lcdFillArea(x0, y0, x1, y0+1, color);
} else {
int16_t dy, dx; int16_t dy, dx;
int16_t addx = 1, addy = 1; int16_t addx = 1, addy = 1;
int16_t P, diff; int16_t P, diff;
@ -314,6 +321,7 @@ void lcdDrawLine(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1, uint16_t co
} }
} }
} }
}
uint16_t lcdDrawChar(uint16_t cx, uint16_t cy, char c, font_t font, uint16_t color, uint16_t bkcolor, bool_t tpText) { uint16_t lcdDrawChar(uint16_t cx, uint16_t cy, char c, font_t font, uint16_t color, uint16_t bkcolor, bool_t tpText) {
/* Working pointer */ /* Working pointer */