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#include "StdAfx.h"
#include "UT2BkgndInfo.h"
/*static*/ BkgndInfo* UT2BkgndInfo::SetupBkgndInfo(const RECT& rect, int z) {
BkgndInfo *bkgndInfoPtr = NULL;
int size;
int vRange = (rect.bottom - rect.top) / 2;
int hRange = (rect.right - rect.left) / 8;
int zRange = z / 2;
if (vRange > 0 && hRange > 0) {
size = sizeof(BkgndInfo) + sizeof(void *) * (vRange - 1);
bkgndInfoPtr = (BkgndInfo *) malloc(size);
memset(bkgndInfoPtr, 0, size);
bkgndInfoPtr->vRange = vRange;
bkgndInfoPtr->hRange = hRange;
bkgndInfoPtr->zRange = zRange;
for (int i = 0; i < vRange && bkgndInfoPtr; i++) {
size = sizeof(unsigned int) * hRange;
bkgndInfoPtr->arrays[i] = (unsigned int *) malloc(size);
memset(bkgndInfoPtr->arrays[i], 0, size);
if (!bkgndInfoPtr->arrays[i])
DisposeBkgndInfo(bkgndInfoPtr);
}
}
return bkgndInfoPtr;
}
/*static*/ void UT2BkgndInfo::DisposeBkgndInfo(BkgndInfo*& info) {
if (info) {
for (int i = 0; i < info->vRange; i++) {
if (info->arrays[i])
free(info->arrays[i]);
}
free(info);
info = NULL;
}
}
/*static*/ unsigned int UT2BkgndInfo::GetBkgndInfo(BkgndInfo* const inBkgndInfoPtr, int inV, int inH) {
unsigned int result = 0;
if (!inBkgndInfoPtr)
return 0;
if (inV < 0 || inV >= inBkgndInfoPtr->vRange)
return 0;
if (inH < 0 || inH >= inBkgndInfoPtr->hRange)
return 0;
unsigned int value = inBkgndInfoPtr->arrays[inV][inH];
value &= 0xFFFF;
result = value;
return result;
}
/*static*/ void UT2BkgndInfo::UnitToBkgndRect(const RECT& inRect, RECT& outRect) {
outRect.top = inRect.top / 2;
outRect.left = inRect.left / 8;
outRect.bottom = inRect.bottom / 2;
outRect.right = inRect.right / 8;
if ((inRect.bottom % 2) != 0)
outRect.bottom++;
if ((inRect.right % 8) != 0)
outRect.right++;
}
/*static*/ void UT2BkgndInfo::BkgndToUnitRect(const RECT& inRect, RECT& outRect) {
outRect.top = inRect.top * 2;
outRect.left = inRect.left * 8;
outRect.bottom = inRect.bottom * 2;
outRect.right = inRect.right * 8;
}
/*static*/ void UT2BkgndInfo::GetOffBkgndRect(int offset, RECT& rect) {
SetRect(&rect, 0, 0, 8, 2);
OffsetRect(&rect, 0, offset * 2);
}
/*static*/ void UT2BkgndInfo::ReplaceID(const BkgndInfo* info, unsigned int a, int b) {
for (int v = 0; v < info->vRange; v++) {
for (int h = 0; h < info->hRange; h++) {
unsigned int *p = &info->arrays[v][h];
if ((*p & 0xFFFF) >= a)
*p += b;
}
}}
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