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

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Move aspect ratio helper function to qdutils so it can be used
as a utility function in libvirtual and libexternal without
introducing a circular dependency.

Change-Id: Ib295c1d9f78bc8898b1aac9a443cdacf53150551
This commit is contained in:
Tatenda Chipeperekwa
2014-03-05 13:02:24 -08:00
parent c6f2145cde
commit a7dd23cc7e
4 changed files with 33 additions and 31 deletions
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29
libhwcomposer/hwc_utils.cpp
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@@ -44,6 +44,7 @@
#include "QService.h"
#include "comptype.h"
#include "hwc_virtual.h"
#include "qd_utils.h"
using namespace qClient;
using namespace qService;
@@ -392,34 +393,6 @@ void getActionSafePosition(hwc_context_t *ctx, int dpy, hwc_rect_t& rect) {
return;
}
/* 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(HWC_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;
}
// This function gets the destination position for Seconday display
// based on the position and aspect ratio with orientation
void getAspectRatioPosition(hwc_context_t* ctx, int dpy, int extOrientation,