speed-dreams/speed-dreams-code
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Re #691: added some utility functions (Boris)

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o copySingleVertexData() to copy data of a single vertex b/w objects
o clearSavedInVertexArrayEntry() to clear the saved flag in all texture channels of vertexarrays
o allocTexChannelArrays() to create vertexarray and textarray for a given channel in the target object

git-svn-id: https://svn.code.sf.net/p/speed-dreams/code/trunk@4869 30fe4595-0a0c-4342-8851-515496e4dcbd

Former-commit-id: bc148a8d95dccd059d959551b397bcdabe22c420
Former-commit-id: 6f60ce66dd91768e69116eb2c8bd1f35d888e17b
This commit is contained in:
kmetykog 2012-08-17 22:12:01 +00:00
parent 0832c9de6c
commit 50da3edbb1
1 changed files with 64 additions and 0 deletions
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64
src/tools/accc/ac3dload.cpp
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@ -245,6 +245,70 @@ ob_t * createObjectSplitCopy(int splitid, ob_t * srcobj, ob_t * tmpob)
return retob;
}
/** Copies the data of a single vertex from srcob to destob.
* In particular the vertexarray and textarray variables of destob will be modified.
* This includes the data of additional texture channels.
*
* This function is used in splitting specifically.
*
* @param destob the destination object
* @param srcob the source object
* @param storedptidx the value of the indice variable in the destination vertex
* @param destptidx the index in the "vertex" array to be used for modifying the textarray
* @param destvertidx the index in the destination's vertexarray to be modified
* @param srcvertidx the index in the vertexarray in the source object to take the data from
*/
void copySingleVertexData(ob_t * destob, ob_t * srcob,
int storedptidx, int destptidx, int destvertidx, int srcvertidx)
{
tcoord_t * srcvert = &(srcob->vertexarray[srcvertidx]);
destob->textarray[destptidx * 2] = srcvert->u;
destob->textarray[destptidx * 2 + 1] = srcvert->v;
storeTexCoord(&(destob->vertexarray[destvertidx]),
storedptidx, srcvert->u, srcvert->v, 0);
}
/** Clears the saved flag for a single entry in ob's vertexarray and does so
* for all texture channels.
*/
void clearSavedInVertexArrayEntry(ob_t * ob, int vertidx)
{
ob->vertexarray[vertidx].saved = 0;
}
/** Creates vertexarray{,1,2,3} and textarray{,1,2,3} in ob based on the given channel
* and on the given number of vertices.
*
* @param channel which texture channel, value in range [0,3]
*/
void allocTexChannelArrays(ob_t * ob, int channel, int numvert)
{
tcoord_t * va = (tcoord_t *) calloc(numvert, sizeof(tcoord_t));
double* ta = (double *) calloc(2*numvert, sizeof(double));
switch(channel)
{
case 0:
ob->vertexarray = va;
ob->textarray = ta;
break;
case 1:
ob->vertexarray1 = va;
ob->textarray1 = ta;
break;
case 2:
ob->vertexarray2 = va;
ob->textarray2 = ta;
break;
case 3:
ob->vertexarray3 = va;
ob->textarray3 = ta;
break;
}
}
int computeNorm(point_t * pv1, point_t *pv2, point_t *pv3, point_t *norm)
{
double p1, p2, p3, q1, q2, q3, dd;