void Bresenham_Ellipse(int xc , int yc , int a, int b)
{
int sqa = a * a;
int sqb = b * b;
int P_x = ROUND_INT( (double)sqa/sqrt((double)(sqa+sqb)) );
int P_y = ROUND_INT( (double)sqb/sqrt((double)(sqa+sqb)) );
/* 生成第一象限内的上半部分椭圆弧 */
int x = 0;
int y = b;
int d = 4 * (sqb - b * sqa) + sqa;
EllipsePlot(xc, yc, x, y);
while(x <= P_x)
{
if(d <= 0)
{
d += 4 * sqb * (2 * x + 3);
}
else
{
d += 4 * sqb * (2 * x + 3) - 8 * sqa * (y - 1);
y--;
}
x++;
EllipsePlot(xc, yc, x, y);
}
/* 生成第一象限内的下半部分椭圆弧 */
x = a;
y = 0;
d = 4 * (sqa - a * sqb) + sqb;
EllipsePlot(xc, yc, x, y);
while(y < P_y)
{
if(d <= 0)
{
d += 4 * sqa * (2 * y + 3);
}
else
{
d += 4 * sqa * (2 * y + 3) - 8 * sqb * (x - 1);
x--;
}
y++;
EllipsePlot(xc, yc, x, y);
}
}
void EdgeScanMarkColor(EDGE3& e)
{
for(int y = e.ymax; y >= e.ymin; y--)
{
int x = ROUND_INT(e.xi);
ComplementScanLineColor(x, MAX_X_CORD, y);
e.xi -= e.dx;
}
}
void FenceScanMarkColor(EDGE3 e, int fence)
{
for(int y = e.ymax; y >= e.ymin; y--)
{
int x = ROUND_INT(e.xi);
if(x > fence)
{
ComplementScanLineColor(fence, x, y);
}
else
{
ComplementScanLineColor(x, fence - 1, y);
}
e.xi -= e.dx;
}
}
/*Bresenham算法*/
void Bresenham_Ellipse(int xc , int yc , int a, int b)
{
int sqa = a * a;
int sqb = b * b;
int x = 0;
int y = b;
int d = 2 * sqb - 2 * b * sqa + sqa;
EllipsePlot(xc, yc, x, y);
int P_x = ROUND_INT( (double)sqa/sqrt((double)(sqa+sqb)) );
while(x <= P_x)
{
if(d < 0)
{
d += 2 * sqb * (2 * x + 3);
}
else
{
d += 2 * sqb * (2 * x + 3) - 4 * sqa * (y - 1);
y--;
}
x++;
EllipsePlot(xc, yc, x, y);
}
d = sqb * (x * x + x) + sqa * (y * y - y) - sqa * sqb;
while(y >= 0)
{
EllipsePlot(xc, yc, x, y);
y--;
if(d < 0)
{
x++;
d = d - 2 * sqa * y - sqa + 2 * sqb * x + 2 * sqb;
}
else
{
d = d - 2 * sqa * y - sqa;
}
}
}
/*
==============
R_CalcBones
The list of bones[] should only be built and modified from within here
==============
*/
void R_CalcBones(mdsHeader_t *header, const refEntity_t *refent, int *boneList, int numBones)
{
int i;
int *boneRefs;
float torsoWeight;
// if the entity has changed since the last time the bones were built, reset them
if (memcmp(&lastBoneEntity, refent, sizeof(refEntity_t)))
{
// different, cached bones are not valid
memset(validBones, 0, header->numBones);
lastBoneEntity = *refent;
// (SA) also reset these counter statics
//----(SA) print stats for the complete model (not per-surface)
if (r_bonesDebug->integer == 4 && totalrt)
{
Ren_Print("Lod %.2f verts %4d/%4d tris %4d/%4d (%.2f%%)\n",
lodScale,
totalrv,
totalv,
totalrt,
totalt,
( float )(100.0 * totalrt) / (float) totalt);
}
totalrv = totalrt = totalv = totalt = 0;
}
memset(newBones, 0, header->numBones);
if (refent->oldframe == refent->frame)
{
backlerp = 0;
frontlerp = 1;
}
else
{
backlerp = refent->backlerp;
frontlerp = 1.0f - backlerp;
}
if (refent->oldTorsoFrame == refent->torsoFrame)
{
torsoBacklerp = 0;
torsoFrontlerp = 1;
}
else
{
torsoBacklerp = refent->torsoBacklerp;
torsoFrontlerp = 1.0f - torsoBacklerp;
}
frameSize = (int) (sizeof(mdsFrame_t) + (header->numBones - 1) * sizeof(mdsBoneFrameCompressed_t));
frame = ( mdsFrame_t * )((byte *)header + header->ofsFrames +
refent->frame * frameSize);
torsoFrame = ( mdsFrame_t * )((byte *)header + header->ofsFrames +
refent->torsoFrame * frameSize);
oldFrame = ( mdsFrame_t * )((byte *)header + header->ofsFrames +
refent->oldframe * frameSize);
oldTorsoFrame = ( mdsFrame_t * )((byte *)header + header->ofsFrames +
refent->oldTorsoFrame * frameSize);
// lerp all the needed bones (torsoParent is always the first bone in the list)
cBoneList = frame->bones;
cBoneListTorso = torsoFrame->bones;
boneInfo = ( mdsBoneInfo_t * )((byte *)header + header->ofsBones);
boneRefs = boneList;
//
Matrix3Transpose(refent->torsoAxis, torsoAxis);
#ifdef HIGH_PRECISION_BONES
if (qtrue)
{
#else
if (!backlerp && !torsoBacklerp)
{
#endif
for (i = 0; i < numBones; i++, boneRefs++)
{
if (validBones[*boneRefs])
{
// this bone is still in the cache
bones[*boneRefs] = rawBones[*boneRefs];
continue;
}
// find our parent, and make sure it has been calculated
if ((boneInfo[*boneRefs].parent >= 0) && (!validBones[boneInfo[*boneRefs].parent] && !newBones[boneInfo[*boneRefs].parent]))
{
R_CalcBone(header, refent, boneInfo[*boneRefs].parent);
}
R_CalcBone(header, refent, *boneRefs);
}
}
else // interpolated
{
cOldBoneList = oldFrame->bones;
cOldBoneListTorso = oldTorsoFrame->bones;
for (i = 0; i < numBones; i++, boneRefs++)
{
if (validBones[*boneRefs])
{
// this bone is still in the cache
bones[*boneRefs] = rawBones[*boneRefs];
continue;
}
// find our parent, and make sure it has been calculated
if ((boneInfo[*boneRefs].parent >= 0) && (!validBones[boneInfo[*boneRefs].parent] && !newBones[boneInfo[*boneRefs].parent]))
{
R_CalcBoneLerp(header, refent, boneInfo[*boneRefs].parent);
}
R_CalcBoneLerp(header, refent, *boneRefs);
}
}
// adjust for torso rotations
torsoWeight = 0;
boneRefs = boneList;
for (i = 0; i < numBones; i++, boneRefs++)
{
thisBoneInfo = &boneInfo[*boneRefs];
bonePtr = &bones[*boneRefs];
// add torso rotation
if (thisBoneInfo->torsoWeight > 0)
{
if (!newBones[*boneRefs])
{
// just copy it back from the previous calc
bones[*boneRefs] = oldBones[*boneRefs];
continue;
}
if (!(thisBoneInfo->flags & BONEFLAG_TAG))
{
// 1st multiply with the bone->matrix
// 2nd translation for rotation relative to bone around torso parent offset
VectorSubtract(bonePtr->translation, torsoParentOffset, t);
Matrix4FromAxisPlusTranslation(bonePtr->matrix, t, m1);
// 3rd scaled rotation
// 4th translate back to torso parent offset
// use previously created matrix if available for the same weight
if (torsoWeight != thisBoneInfo->torsoWeight)
{
Matrix4FromScaledAxisPlusTranslation(torsoAxis, thisBoneInfo->torsoWeight, torsoParentOffset, m2);
torsoWeight = thisBoneInfo->torsoWeight;
}
// multiply matrices to create one matrix to do all calculations
Matrix4MultiplyInto3x3AndTranslation(m2, m1, bonePtr->matrix, bonePtr->translation);
}
else // tag's require special handling
{ // rotate each of the axis by the torsoAngles
LocalScaledMatrixTransformVector(bonePtr->matrix[0], thisBoneInfo->torsoWeight, torsoAxis, tmpAxis[0]);
LocalScaledMatrixTransformVector(bonePtr->matrix[1], thisBoneInfo->torsoWeight, torsoAxis, tmpAxis[1]);
LocalScaledMatrixTransformVector(bonePtr->matrix[2], thisBoneInfo->torsoWeight, torsoAxis, tmpAxis[2]);
memcpy(bonePtr->matrix, tmpAxis, sizeof(tmpAxis));
// rotate the translation around the torsoParent
VectorSubtract(bonePtr->translation, torsoParentOffset, t);
LocalScaledMatrixTransformVector(t, thisBoneInfo->torsoWeight, torsoAxis, bonePtr->translation);
VectorAdd(bonePtr->translation, torsoParentOffset, bonePtr->translation);
}
}
}
// backup the final bones
memcpy(oldBones, bones, sizeof(bones[0]) * header->numBones);
}
#ifdef DBG_PROFILE_BONES
#define DBG_SHOWTIME Ren_Print("%i: %i, ", di++, (dt = ri.Milliseconds()) - ldt); ldt = dt;
#else
#define DBG_SHOWTIME ;
#endif
/*
==============
RB_SurfaceAnim
==============
*/
void RB_SurfaceAnim(mdsSurface_t *surface)
{
int j, k;
refEntity_t *refent;
int *boneList;
mdsHeader_t *header;
#ifdef DBG_PROFILE_BONES
int di = 0, dt, ldt;
dt = ri.Milliseconds();
ldt = dt;
#endif
refent = &backEnd.currentEntity->e;
boneList = ( int * )((byte *)surface + surface->ofsBoneReferences);
header = ( mdsHeader_t * )((byte *)surface + surface->ofsHeader);
R_CalcBones(header, (const refEntity_t *)refent, boneList, surface->numBoneReferences);
DBG_SHOWTIME
// calculate LOD
// TODO: lerp the radius and origin
VectorAdd(refent->origin, frame->localOrigin, vec);
lodRadius = frame->radius;
lodScale = RB_CalcMDSLod(refent, vec, lodRadius, header->lodBias, header->lodScale);
//DBG_SHOWTIME
// modification to allow dead skeletal bodies to go below minlod (experiment)
if (refent->reFlags & REFLAG_DEAD_LOD)
{
if (lodScale < 0.35) // allow dead to lod down to 35% (even if below surf->minLod) (%35 is arbitrary and probably not good generally. worked for the blackguard/infantry as a test though)
{
lodScale = 0.35;
}
render_count = ROUND_INT(surface->numVerts * lodScale);
}
else
{
render_count = ROUND_INT(surface->numVerts * lodScale);
if (render_count < surface->minLod)
{
if (!(refent->reFlags & REFLAG_DEAD_LOD))
{
render_count = surface->minLod;
}
}
}
if (render_count > surface->numVerts)
{
render_count = surface->numVerts;
}
RB_CheckOverflow(render_count, surface->numTriangles);
//DBG_SHOWTIME
// setup triangle list
RB_CheckOverflow(surface->numVerts, surface->numTriangles * 3);
//DBG_SHOWTIME
collapse_map = ( int * )(( byte * )surface + surface->ofsCollapseMap);
triangles = ( int * )((byte *)surface + surface->ofsTriangles);
indexes = surface->numTriangles * 3;
baseIndex = tess.numIndexes;
baseVertex = tess.numVertexes;
oldIndexes = baseIndex;
tess.numVertexes += render_count;
pIndexes = &tess.indexes[baseIndex];
//DBG_SHOWTIME
if (render_count == surface->numVerts)
{
memcpy(pIndexes, triangles, sizeof(triangles[0]) * indexes);
if (baseVertex)
{
glIndex_t *indexesEnd;
for (indexesEnd = pIndexes + indexes ; pIndexes < indexesEnd ; pIndexes++)
{
*pIndexes += baseVertex;
}
}
tess.numIndexes += indexes;
}
else
{
int *collapseEnd;
pCollapse = collapse;
for (j = 0; j < render_count; pCollapse++, j++)
{
*pCollapse = j;
}
pCollapseMap = &collapse_map[render_count];
for (collapseEnd = collapse + surface->numVerts ; pCollapse < collapseEnd; pCollapse++, pCollapseMap++)
{
*pCollapse = collapse[*pCollapseMap];
}
for (j = 0 ; j < indexes ; j += 3)
{
p0 = collapse[*(triangles++)];
p1 = collapse[*(triangles++)];
p2 = collapse[*(triangles++)];
// FIXME
// note: serious optimization opportunity here,
// by sorting the triangles the following "continue"
// could have been made into a "break" statement.
if (p0 == p1 || p1 == p2 || p2 == p0)
{
continue;
}
*(pIndexes++) = baseVertex + p0;
*(pIndexes++) = baseVertex + p1;
*(pIndexes++) = baseVertex + p2;
tess.numIndexes += 3;
}
baseIndex = tess.numIndexes;
}
//DBG_SHOWTIME
// deform the vertexes by the lerped bones
numVerts = surface->numVerts;
v = ( mdsVertex_t * )((byte *)surface + surface->ofsVerts);
tempVert = ( float * )(tess.xyz + baseVertex);
tempNormal = ( float * )(tess.normal + baseVertex);
for (j = 0; j < render_count; j++, tempVert += 4, tempNormal += 4)
{
mdsWeight_t *w;
VectorClear(tempVert);
w = v->weights;
for (k = 0 ; k < v->numWeights ; k++, w++)
{
bone = &bones[w->boneIndex];
LocalAddScaledMatrixTransformVectorTranslate(w->offset, w->boneWeight, bone->matrix, bone->translation, tempVert);
}
LocalMatrixTransformVector(v->normal, bones[v->weights[0].boneIndex].matrix, tempNormal);
tess.texCoords0[baseVertex + j].v[0] = v->texCoords[0];
tess.texCoords0[baseVertex + j].v[1] = v->texCoords[1];
v = (mdsVertex_t *)&v->weights[v->numWeights];
}
DBG_SHOWTIME
if (r_bonesDebug->integer)
{
if (r_bonesDebug->integer < 3)
{
int i;
// DEBUG: show the bones as a stick figure with axis at each bone
boneRefs = ( int * )((byte *)surface + surface->ofsBoneReferences);
for (i = 0; i < surface->numBoneReferences; i++, boneRefs++)
{
bonePtr = &bones[*boneRefs];
GL_Bind(tr.whiteImage);
qglLineWidth(1);
qglBegin(GL_LINES);
for (j = 0; j < 3; j++)
{
VectorClear(vec);
vec[j] = 1;
qglColor3fv(vec);
qglVertex3fv(bonePtr->translation);
VectorMA(bonePtr->translation, 5, bonePtr->matrix[j], vec);
qglVertex3fv(vec);
}
qglEnd();
// connect to our parent if it's valid
if (validBones[boneInfo[*boneRefs].parent])
{
qglLineWidth(2);
qglBegin(GL_LINES);
qglColor3f(.6, .6, .6);
qglVertex3fv(bonePtr->translation);
qglVertex3fv(bones[boneInfo[*boneRefs].parent].translation);
qglEnd();
}
qglLineWidth(1);
}
}
if (r_bonesDebug->integer == 3 || r_bonesDebug->integer == 4)
{
int render_indexes = (tess.numIndexes - oldIndexes);
// show mesh edges
tempVert = ( float * )(tess.xyz + baseVertex);
tempNormal = ( float * )(tess.normal + baseVertex);
GL_Bind(tr.whiteImage);
qglLineWidth(1);
qglBegin(GL_LINES);
qglColor3f(.0, .0, .8);
pIndexes = &tess.indexes[oldIndexes];
for (j = 0; j < render_indexes / 3; j++, pIndexes += 3)
{
qglVertex3fv(tempVert + 4 * pIndexes[0]);
qglVertex3fv(tempVert + 4 * pIndexes[1]);
qglVertex3fv(tempVert + 4 * pIndexes[1]);
qglVertex3fv(tempVert + 4 * pIndexes[2]);
qglVertex3fv(tempVert + 4 * pIndexes[2]);
qglVertex3fv(tempVert + 4 * pIndexes[0]);
}
qglEnd();
// track debug stats
if (r_bonesDebug->integer == 4)
{
totalrv += render_count;
totalrt += render_indexes / 3;
totalv += surface->numVerts;
totalt += surface->numTriangles;
}
if (r_bonesDebug->integer == 3)
{
Ren_Print("Lod %.2f verts %4d/%4d tris %4d/%4d (%.2f%%)\n", lodScale, render_count, surface->numVerts, render_indexes / 3, surface->numTriangles,
( float )(100.0 * render_indexes / 3) / (float) surface->numTriangles);
}
}
}
if (r_bonesDebug->integer > 1)
{
// dont draw the actual surface
tess.numIndexes = oldIndexes;
tess.numVertexes = baseVertex;
return;
}
#ifdef DBG_PROFILE_BONES
Ren_Print("\n");
#endif
}
/*
=================
R_ComputeLOD
=================
*/
static int R_ComputeLOD(trRefEntity_t *ent)
{
int lod;
if (tr.currentModel->numLods < 2)
{
// model has only 1 LOD level, skip computations and bias
lod = 0;
}
else
{
float projectedRadius;
float radius;
float flod;
md3Frame_t *frame;
// multiple LODs exist, so compute projected bounding sphere
// and use that as a criteria for selecting LOD
// checked for a forced lowest LOD
if (ent->e.reFlags & REFLAG_FORCE_LOD)
{
return (tr.currentModel->numLods - 1);
}
frame = ( md3Frame_t * )((( unsigned char * ) tr.currentModel->model.mdc[0]) + tr.currentModel->model.mdc[0]->ofsFrames);
frame += ent->e.frame;
radius = RadiusFromBounds(frame->bounds[0], frame->bounds[1]);
// testing
//if (ent->e.reFlags & REFLAG_ORIENT_LOD)
//{
// right now this is for trees, and pushes the lod distance way in.
// this is not the intended purpose, but is helpful for the new
// terrain level that has loads of trees
// radius = radius/2.0f;
//}
if ((projectedRadius = ProjectRadius(radius, ent->e.origin)) != 0)
{
float lodscale = r_lodscale->value;
if (lodscale > 20)
{
lodscale = 20;
}
flod = 1.0f - projectedRadius * lodscale;
}
else
{
// object intersects near view plane, e.g. view weapon
flod = 0;
}
flod *= tr.currentModel->numLods;
lod = ROUND_INT(flod);
if (lod < 0)
{
lod = 0;
}
else if (lod >= tr.currentModel->numLods)
{
lod = tr.currentModel->numLods - 1;
}
}
lod += r_lodbias->integer;
if (lod >= tr.currentModel->numLods)
{
lod = tr.currentModel->numLods - 1;
}
if (lod < 0)
{
lod = 0;
}
return lod;
}
/* returns -1 on error, 0 on success */
int init_nonce_count()
{
unsigned long size;
unsigned long max_mem;
unsigned orig_array_size;
if (nid_crt==0){
BUG("auth: init_nonce_count: nonce index must be "
"initialized first (see init_nonce_id())\n");
return -1;
}
orig_array_size=nc_array_size;
if (nc_array_k==0){
if (nc_array_size==0){
nc_array_size=DEFAULT_NC_ARRAY_SIZE;
}
nc_array_k=bit_scan_reverse32(nc_array_size);
}
size=1UL<<nc_array_k; /* ROUNDDOWN to 2^nc_array_k */
if (size < MIN_NC_ARRAY_SIZE){
WARN("auth: nonce-count in.flight nonces is very low (%d),"
" consider increasing nc_array_size to at least %d\n",
orig_array_size, MIN_NC_ARRAY_SIZE);
}
if (size > MAX_NC_ARRAY_SIZE){
WARN("auth: nonce-count in flight nonces is too high (%d),"
" consider decreasing nc_array_size to at least %d\n",
orig_array_size, MAX_NC_ARRAY_SIZE);
}
if (size!=nc_array_size){
if (orig_array_size!=0)
INFO("auth: nc_array_size rounded down to %ld\n", size);
else
INFO("auth: nc_array_size set to %ld\n", size);
}
max_mem=shm_available();
if (size*sizeof(nc_t) >= max_mem){
ERR("auth: nc_array_size (%ld) is too big for the configured "
"amount of shared memory (%ld bytes <= %ld bytes)\n",
size, max_mem, size*sizeof(nc_t));
return -1;
}else if (size*sizeof(nc_t) >= max_mem/2){
WARN("auth: the currently configured nc_array_size (%ld) "
"would use more then 50%% of the available shared"
" memory(%ld bytes)\n", size, max_mem);
}
nc_array_size=size;
if (nid_pool_no>=nc_array_size){
ERR("auth: nid_pool_no (%d) too high for the configured "
"nc_array_size (%d)\n", nid_pool_no, nc_array_size);
return -1;
}
nc_partition_size=nc_array_size >> nid_pool_k;
nc_partition_k=nc_array_k-nid_pool_k;
nc_partition_mask=(1<<nc_partition_k)-1;
assert(nc_partition_size == nc_array_size/nid_pool_no);
assert(1<<(nc_partition_k+nid_pool_k) == nc_array_size);
if ((nid_t)nc_partition_size >= ((nid_t)(-1)/NID_INC)){
ERR("auth: nc_array_size too big, try decreasing it or increasing"
"the number of pools/partitions\n");
return -1;
}
if (nc_partition_size < MIN_NC_ARRAY_PARTITION){
WARN("auth: nonce-count in-flight nonces very low,"
" consider either decreasing nc_pool_no (%d) or "
" increasing nc_array_size (%d) such that "
"nc_array_size/nid_pool_no >= %d\n",
nid_pool_no, orig_array_size, MIN_NC_ARRAY_PARTITION);
}
/* array size should be multiple of sizeof(unsigned int) since we
* access it as an uint array */
nc_array=shm_malloc(sizeof(nc_t)*ROUND_INT(nc_array_size));
if (nc_array==0){
ERR("auth: init_nonce_count: memory allocation failure, consider"
" either decreasing nc_array_size of increasing the"
" the shared memory ammount\n");
goto error;
}
/* int the nc_array with the max nc value to avoid replay attacks after
* ser restarts (because the nc is already maxed out => no received
* nc will be accepted, until the corresponding cell is reset) */
memset(nc_array, 0xff, sizeof(nc_t)*ROUND_INT(nc_array_size));
return 0;
error:
destroy_nonce_count();
return -1;
}
/* allocates memory for a new config script variable
* The value of the variable is not set!
*/
cfg_script_var_t *new_cfg_script_var(char *gname, char *vname, unsigned int type,
char *descr)
{
cfg_group_t *group;
cfg_script_var_t *var;
int gname_len, vname_len, descr_len;
LOG(L_DBG, "DEBUG: new_cfg_script_var(): declaring %s.%s\n", gname, vname);
if (cfg_shmized) {
LOG(L_ERR, "ERROR: new_cfg_script_var(): too late variable declaration, "
"the config has been already shmized\n");
return NULL;
}
gname_len = strlen(gname);
vname_len = strlen(vname);
/* the group may have been already declared */
group = cfg_lookup_group(gname, gname_len);
if (group) {
if (group->dynamic == CFG_GROUP_STATIC) {
/* the group has been already declared by a module or by the core */
LOG(L_ERR, "ERROR: new_cfg_script_var(): "
"configuration group has been already declared: %s\n",
gname);
return NULL;
}
/* the dynamic or empty group is found */
/* verify that the variable does not exist */
for ( var = (cfg_script_var_t *)group->vars;
var;
var = var->next
) {
if ((var->name_len == vname_len) &&
(memcmp(var->name, vname, vname_len) == 0)) {
LOG(L_ERR, "ERROR: new_cfg_script_var(): variable already exists: %s.%s\n",
gname, vname);
return NULL;
}
}
if (group->dynamic == CFG_GROUP_UNKNOWN)
group->dynamic = CFG_GROUP_DYNAMIC;
} else {
/* create a new group with NULL values, we will fix it later,
when all the variables are known */
group = cfg_new_group(gname, gname_len,
0 /* num */, NULL /* mapping */,
NULL /* vars */, 0 /* size */, NULL /* handle */);
if (!group) goto error;
group->dynamic = CFG_GROUP_DYNAMIC;
}
switch (type) {
case CFG_VAR_INT:
group->size = ROUND_INT(group->size);
group->size += sizeof(int);
break;
case CFG_VAR_STR:
group->size = ROUND_POINTER(group->size);
group->size += sizeof(str);
break;
default:
LOG(L_ERR, "ERROR: new_cfg_script_var(): unsupported variable type\n");
return NULL;
}
group->num++;
if (group->num > CFG_MAX_VAR_NUM) {
LOG(L_ERR, "ERROR: new_cfg_script_var(): too many variables (%d) within a single group,"
" the limit is %d. Increase CFG_MAX_VAR_NUM, or split the group into multiple"
" definitions.\n",
group->num, CFG_MAX_VAR_NUM);
return NULL;
}
var = (cfg_script_var_t *)pkg_malloc(sizeof(cfg_script_var_t));
if (!var) goto error;
memset(var, 0, sizeof(cfg_script_var_t));
var->type = type;
/* add the variable to the group */
var->next = (cfg_script_var_t *)(void *)group->vars;
group->vars = (char *)(void *)var;
/* clone the name of the variable */
var->name = (char *)pkg_malloc(sizeof(char) * (vname_len + 1));
if (!var->name) goto error;
memcpy(var->name, vname, vname_len + 1);
var->name_len = vname_len;
if (descr) {
/* save the description */
descr_len = strlen(descr);
var->descr = (char *)pkg_malloc(sizeof(char) * (descr_len + 1));
if (!var->descr) goto error;
memcpy(var->descr, descr, descr_len + 1);
}
return var;
error:
LOG(L_ERR, "ERROR: new_cfg_script_var(): not enough memory\n");
return NULL;
}
/* fix-up the dynamically declared group:
* - allocate memory for the arrays
* - set the values within the memory block
*/
int cfg_script_fixup(cfg_group_t *group, unsigned char *block)
{
cfg_mapping_t *mapping = NULL;
cfg_def_t *def = NULL;
void **handle = NULL;
int i, offset;
cfg_script_var_t *script_var, *script_var2;
str s;
mapping = (cfg_mapping_t *)pkg_malloc(sizeof(cfg_mapping_t)*group->num);
if (!mapping) goto error;
memset(mapping, 0, sizeof(cfg_mapping_t)*group->num);
/* The variable definition array must look like as if it was declared
* in C code, thus, add an additional slot at the end with NULL values */
def = (cfg_def_t *)pkg_malloc(sizeof(cfg_def_t)*(group->num + 1));
if (!def) goto error;
memset(def, 0, sizeof(cfg_def_t)*(group->num + 1));
/* fill the definition and the mapping arrays */
offset = 0;
for ( i = 0, script_var = (cfg_script_var_t *)group->vars;
script_var;
i++, script_var = script_var->next
) {
/* there has been already memory allocated for the name */
def[i].name = script_var->name;
def[i].type = script_var->type | (script_var->type << CFG_INPUT_SHIFT);
def[i].descr = script_var->descr;
def[i].min = script_var->min;
def[i].max = script_var->max;
mapping[i].def = &(def[i]);
mapping[i].name_len = script_var->name_len;
mapping[i].pos = i;
switch (script_var->type) {
case CFG_VAR_INT:
offset = ROUND_INT(offset);
mapping[i].offset = offset;
*(int *)(block + offset) = script_var->val.i;
offset += sizeof(int);
break;
case CFG_VAR_STR:
offset = ROUND_POINTER(offset);
mapping[i].offset = offset;
if (cfg_clone_str(&(script_var->val.s), &s)) goto error;
memcpy(block + offset, &s, sizeof(str));
mapping[i].flag |= cfg_var_shmized;
offset += sizeof(str);
break;
}
}
/* allocate a handle even if it will not be used to
directly access the variable, like handle->variable
cfg_get_* functions access the memory block via the handle
to make sure that it is always safe, thus, it must be created */
handle = (void **)pkg_malloc(sizeof(void *));
if (!handle) goto error;
*handle = NULL;
group->handle = handle;
group->mapping = mapping;
/* everything went fine, we can free the temporary list */
script_var = (cfg_script_var_t *)group->vars;
group->vars = NULL;
while (script_var) {
script_var2 = script_var->next;
if ((script_var->type == CFG_VAR_STR) && script_var->val.s.s)
pkg_free(script_var->val.s.s);
pkg_free(script_var);
script_var = script_var2;
}
return 0;
error:
if (mapping) pkg_free(mapping);
if (def) pkg_free(def);
if (handle) pkg_free(handle);
LOG(L_ERR, "ERROR: cfg_script_fixup(): not enough memory\n");
return -1;
}
