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Fix drawBitmapPatternPie()

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Masks are stored in 8-bit format, but drawAlphaPixel() uses only 4-bit alpha.
This commit is contained in:
Raphael Coeffic
2021-06-06 07:39:17 +02:00
parent d476e6abb1
commit ae5a84cd6c
1 changed files with 4 additions and 4 deletions
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radio/src/thirdparty/libopenui/src/bitmapbuffer.cpp
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+4 -4
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@@ -755,16 +755,16 @@ void BitmapBuffer::drawBitmapPatternPie(coord_t x, coord_t y, const uint8_t * im
for (int x1 = w2 - 1; x1 >= 0; x1--) {
Slope slope(false, x1 == 0 ? 99000 : y1 * 100 / x1);
if (slope.isBetween(startSlope, endSlope)) {
drawAlphaPixel(x + w2 + x1, y + h2 - y1, q[(h2 - y1) * width + w2 + x1], color);
drawAlphaPixel(x + w2 + x1, y + h2 - y1, q[(h2 - y1) * width + w2 + x1]>>4, color);
}
if (slope.invertVertical().isBetween(startSlope, endSlope)) {
drawAlphaPixel(x + w2 + x1, y + h2 + y1, q[(h2 + y1) * width + w2 + x1], color);
drawAlphaPixel(x + w2 + x1, y + h2 + y1, q[(h2 + y1) * width + w2 + x1]>>4, color);
}
if (slope.invertHorizontal().isBetween(startSlope, endSlope)) {
drawAlphaPixel(x + w2 - x1, y + h2 + y1, q[(h2 + y1) * width + w2 - x1], color);
drawAlphaPixel(x + w2 - x1, y + h2 + y1, q[(h2 + y1) * width + w2 - x1]>>4, color);
}
if (slope.invertVertical().isBetween(startSlope, endSlope)) {
drawAlphaPixel(x + w2 - x1, y + h2 - y1, q[(h2 - y1) * width + w2 - x1], color);
drawAlphaPixel(x + w2 - x1, y + h2 - y1, q[(h2 - y1) * width + w2 - x1]>>4, color);
}
}
}