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[kandinsky] optimize KDFrameBuffer::pushRectUniform

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Change-Id: Ie1217a8c70817110b52e505e1cf60eab08180cac
This commit is contained in:
Romain Goyet
2016-08-29 13:30:34 +02:00
parent b2317aa9b3
commit 7d49decd03
1 changed files with 11 additions and 3 deletions
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14
kandinsky/src/framebuffer.cpp
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@@ -27,10 +27,18 @@ void KDFrameBuffer::pushRect(KDRect rect, const KDColor * pixels) {
}
void KDFrameBuffer::pushRectUniform(KDRect rect, KDColor color) {
for (KDCoordinate i=0; i<rect.width(); i++) {
for (KDCoordinate j=0; j<rect.height(); j++) {
*pixelAddress(rect.origin().translatedBy(KDPoint(i,j))) = color;
// Caution: this code is used very frequently
// It's worth optimizing!
KDColor * pixel = pixelAddress(rect.origin());
int lineDelta = m_size.width() - rect.width();
for (KDCoordinate j=0; j<rect.height(); j++) {
//KDColor * topLeftPixelAddress = pixelAddress(rect.origin().translatedBy(KDPoint(0,j)));
//*pixelAddress(rect.origin().translatedBy(KDPoint(i,j))) = color;
for (KDCoordinate i=0; i<rect.width(); i++) {
*pixel++ = color;
//*pixelAddress(rect.origin().translatedBy(KDPoint(i,j))) = color;
}
pixel += lineDelta;
}
}