LineageOS/android_vendor_qcom_opensource_display-commonsys-intf
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Merge "hwc: Move aspect ratio helper function to qdutils"

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Linux Build Service Account
2014-03-11 15:35:05 -07:00
committed by Gerrit - the friendly Code Review server
parent 33aa8e7395 a7dd23cc7e
commit 2f11754664
4 changed files with 33 additions and 31 deletions
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29
libqdutils/qd_utils.cpp
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@@ -31,6 +31,7 @@
#define MAX_FRAME_BUFFER_NAME_SIZE (80)
#define QD_UTILS_DEBUG 0
int getHDMINode(void)
{
@@ -92,3 +93,31 @@ int getEdidRawData(char *buffer)
return size;
}
/* Calculates the aspect ratio for based on src & dest */
void getAspectRatioPosition(int destWidth, int destHeight, int srcWidth,
int srcHeight, hwc_rect_t& rect) {
int x =0, y =0;
if (srcWidth * destHeight > destWidth * srcHeight) {
srcHeight = destWidth * srcHeight / srcWidth;
srcWidth = destWidth;
} else if (srcWidth * destHeight < destWidth * srcHeight) {
srcWidth = destHeight * srcWidth / srcHeight;
srcHeight = destHeight;
} else {
srcWidth = destWidth;
srcHeight = destHeight;
}
if (srcWidth > destWidth) srcWidth = destWidth;
if (srcHeight > destHeight) srcHeight = destHeight;
x = (destWidth - srcWidth) / 2;
y = (destHeight - srcHeight) / 2;
ALOGD_IF(QD_UTILS_DEBUG, "%s: AS Position: x = %d, y = %d w = %d h = %d",
__FUNCTION__, x, y, srcWidth , srcHeight);
// Convert it back to hwc_rect_t
rect.left = x;
rect.top = y;
rect.right = srcWidth + rect.left;
rect.bottom = srcHeight + rect.top;
}