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Merge "GLConsumer: Fix crop math"

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Dan Stoza 2015-06-11 17:34:15 +00:00 committed by Gerrit Code Review
commit ffe3e96afe
1 changed files with 10 additions and 6 deletions
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16
libs/gui/GLConsumer.cpp
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@ -901,14 +901,18 @@ Rect GLConsumer::getCurrentCrop() const {
// The crop is too wide
if (newWidth < currentWidth) {
uint32_t dw = (currentWidth - newWidth) / 2;
outCrop.left += dw;
outCrop.right -= dw;
uint32_t dw = currentWidth - newWidth;
auto halfdw = dw / 2;
outCrop.left += halfdw;
// Not halfdw because it would subtract 1 too few when dw is odd
outCrop.right -= (dw - halfdw);
// The crop is too tall
} else if (newHeight < currentHeight) {
uint32_t dh = (currentHeight - newHeight) / 2;
outCrop.top += dh;
outCrop.bottom -= dh;
uint32_t dh = currentHeight - newHeight;
auto halfdh = dh / 2;
outCrop.top += halfdh;
// Not halfdh because it would subtract 1 too few when dh is odd
outCrop.bottom -= (dh - halfdh);
}
GLC_LOGV("getCurrentCrop final crop [%d,%d,%d,%d]",