static void write_element(const region_element* element, DWORD *buffer,
INT* filled)
{
write_dword(buffer, filled, element->type);
switch (element->type)
{
case CombineModeReplace:
case CombineModeIntersect:
case CombineModeUnion:
case CombineModeXor:
case CombineModeExclude:
case CombineModeComplement:
write_element(element->elementdata.combine.left, buffer, filled);
write_element(element->elementdata.combine.right, buffer, filled);
break;
case RegionDataRect:
write_float(buffer, filled, element->elementdata.rect.X);
write_float(buffer, filled, element->elementdata.rect.Y);
write_float(buffer, filled, element->elementdata.rect.Width);
write_float(buffer, filled, element->elementdata.rect.Height);
break;
case RegionDataPath:
{
INT i;
const GpPath* path = element->elementdata.pathdata.path;
memcpy(buffer + *filled, &element->elementdata.pathdata.pathheader,
sizeof(element->elementdata.pathdata.pathheader));
*filled += sizeof(element->elementdata.pathdata.pathheader) / sizeof(DWORD);
switch (element->elementdata.pathdata.pathheader.flags)
{
case FLAGS_NOFLAGS:
for (i = 0; i < path->pathdata.Count; i++)
{
write_float(buffer, filled, path->pathdata.Points[i].X);
write_float(buffer, filled, path->pathdata.Points[i].Y);
}
break;
case FLAGS_INTPATH:
for (i = 0; i < path->pathdata.Count; i++)
{
write_packed_point(buffer, filled,
&path->pathdata.Points[i]);
}
}
write_path_types(buffer, filled, path);
break;
}
case RegionDataEmptyRect:
case RegionDataInfiniteRect:
break;
}
}
static void write_element(const region_element* element, DWORD *buffer,
INT* filled)
{
write_dword(buffer, filled, element->type);
switch (element->type)
{
case CombineModeReplace:
case CombineModeIntersect:
case CombineModeUnion:
case CombineModeXor:
case CombineModeExclude:
case CombineModeComplement:
write_element(element->elementdata.combine.left, buffer, filled);
write_element(element->elementdata.combine.right, buffer, filled);
break;
case RegionDataRect:
write_float(buffer, filled, element->elementdata.rect.X);
write_float(buffer, filled, element->elementdata.rect.Y);
write_float(buffer, filled, element->elementdata.rect.Width);
write_float(buffer, filled, element->elementdata.rect.Height);
break;
case RegionDataPath:
{
INT i;
const GpPath* path = element->elementdata.path;
struct _pathheader
{
DWORD size;
DWORD magic;
DWORD count;
DWORD flags;
} *pathheader;
pathheader = (struct _pathheader *)(buffer + *filled);
pathheader->flags = is_integer_path(path) ? FLAGS_INTPATH : FLAGS_NOFLAGS;
/* 3 for headers, once again size doesn't count itself */
pathheader->size = sizeof(DWORD) * 3;
if (pathheader->flags & FLAGS_INTPATH)
pathheader->size += 2 * sizeof(SHORT) * path->pathdata.Count;
else
pathheader->size += 2 * sizeof(FLOAT) * path->pathdata.Count;
pathheader->size += get_pathtypes_size(path);
pathheader->magic = VERSION_MAGIC;
pathheader->count = path->pathdata.Count;
*filled += 4;
switch (pathheader->flags & FLAGS_INTPATH)
{
case FLAGS_NOFLAGS:
for (i = 0; i < path->pathdata.Count; i++)
{
write_float(buffer, filled, path->pathdata.Points[i].X);
write_float(buffer, filled, path->pathdata.Points[i].Y);
}
break;
case FLAGS_INTPATH:
for (i = 0; i < path->pathdata.Count; i++)
{
write_packed_point(buffer, filled,
&path->pathdata.Points[i]);
}
break;
}
write_path_types(buffer, filled, path);
break;
}
case RegionDataEmptyRect:
case RegionDataInfiniteRect:
break;
}
}