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correct render of sprite lines!!

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This commit is contained in:
Emanuele Trabattoni
2021-05-30 13:03:02 +02:00
parent 539a95df61
commit 7116885f2d
4 changed files with 110 additions and 48 deletions
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78
libs/mare/mare.cpp
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@@ -5,10 +5,11 @@
namespace Render {
Mare::Mare(dim_t size) :
Mare::Mare(dim_t size, ScreenRotation rot) :
_screenSize(size),
_screenBufferBackground(nullptr),
_screenBufferForeground(nullptr)
_screenBufferForeground(nullptr),
_rotation(rot)
{
int rv;
_bufferDim = (_screenSize.x >> 3) * _screenSize.y;
@@ -48,17 +49,74 @@ namespace Render {
EPD_2IN9_V2_Display_Partial(_screenBufferBackground);
}
void Mare::setPixel(uint8_t* img, uint16_t x, uint16_t y, bool value){
if (x >= _screenSize.y) return;
if (y >= _screenSize.x) return;
img += (sizeof(uint8_t)*y*(_screenSize.x>>3) + sizeof(uint8_t)*(x>>3));
if (value) *img &= ~(0x80 >> (x%8));
else *img |= (0x80 >> (x%8));
}
void Mare::clearBuffer(uint8_t* buffer, uint16_t len, Color col){
assert(buffer != nullptr);
std::memset(buffer, col == Color::White ? 0xff : 0x00, len);
}
bool Mare::applyRotation(uint16_t* x, uint16_t* y) {
uint16_t ax,ay;
switch(_rotation){
case ScreenRotation::Rot0 :
{
if (*x >= _screenSize.x || *y >= _screenSize.y) return false;
break;
}
case ScreenRotation::Rot90 :
{
if (*x >= _screenSize.y || *y >= _screenSize.x) return false;
ax = *x; ay = *y;
*x = _screenSize.x - ay;
*y = ax;
break;
}
case ScreenRotation::Rot180 :
{
if (*x >= _screenSize.x || *y >= _screenSize.y) return false;
ax = *x; ay = *y;
*x = _screenSize.x - ax;
*y = _screenSize.y - ay;
break;
}
case ScreenRotation::Rot270 :
{
if (*x >= _screenSize.y || *y >= _screenSize.x) return false;
ax = *x; ay = *y;
*x = ay;
*y = _screenSize.y - ax;
break;
}
}
if (*x < 0 || *y < 0) return false;
return true;
}
// Public
const dim_t Mare::getCenter() {
dim_t rv;
if (_rotation == ScreenRotation::Rot0 || _rotation == ScreenRotation::Rot180){
rv.x = _screenSize.x >> 1;
rv.y = _screenSize.y >> 1;
} else {
rv.x = _screenSize.y >> 1;
rv.y = _screenSize.x >> 1;
}
return rv;
}
void Mare::setPixel(uint8_t* img, uint16_t x, uint16_t y, bool value) {
if (!applyRotation(&x,&y)) return;
// from here the coordinates are natural for the screen
img += (sizeof(uint8_t)*y*(_screenSize.x>>3) + sizeof(uint8_t)*(x>>3));
if (value) *img &= ~(0x80 >> (x%8));
else *img |= (0x80 >> (x%8));
}
void Mare::clearScreen() {
EPD_2IN9_V2_Clear();
clearBuffer(_screenBufferBackground, _bufferDim, Color::White);
EPD_2IN9_V2_Display(_screenBufferBackground);
}
}