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Add screen rotation function #5

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Add screen rotation function #5

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28 changes: 24 additions & 4 deletions JDI_MIP_Display.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -43,7 +43,7 @@ void JDI_MIP_Display::begin(){

void JDI_MIP_Display::refresh()
{
for(int i=0; i < height(); i++){
for(int i=0; i < HEIGHT; i++){
int lineIdx = HALF_WIDTH * i;
char *line_cmd;
#ifdef DIFF_LINE_UPDATE
Expand Down Expand Up @@ -75,7 +75,7 @@ void JDI_MIP_Display::clearScreen(){
}

void JDI_MIP_Display::sendLineCommand(char* line_cmd, int line){
if((line < 0) || (line >= height())){
if((line < 0) || (line >= HEIGHT)){
return;
}

Expand All @@ -97,8 +97,28 @@ void JDI_MIP_Display::drawPixel(int16_t x, int16_t y, uint16_t color)
if(x < 0 || x >= width() || y < 0 || y >= height()){
return;
}
int16_t t;
switch (rotation)
{
case 1:
t = x;
x = WIDTH - 1 - y;
y = t;
break;
case 2:
x = WIDTH - 1 - x;
y = HEIGHT - 1 - y;
break;
case 3:
t = x;
x = y;
y = HEIGHT - 1 - t;
break;
default:
break;
}

int pixelIdx = ((width() / 2) * y) + (x / 2);
int pixelIdx = ((WIDTH / 2) * y) + (x / 2);

if(x % 2 == 0){
_backBuffer[pixelIdx] &= 0x0F;
Expand Down Expand Up @@ -128,4 +148,4 @@ void JDI_MIP_Display::frontlightOn(){

void JDI_MIP_Display::frontlightOff(){
digitalWrite(_frontlight, LOW);
}
}