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d3dxof: Use offsets to reference data instead of pointers so data buffer can be resized.

This commit is contained in:
Christian Costa 2009-03-12 09:06:16 +01:00 committed by Alexandre Julliard
parent fd77bc5f10
commit df48d6f578
3 changed files with 23 additions and 19 deletions
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5
dlls/d3dxof/d3dxof.c
View File

@ -686,7 +686,7 @@ static HRESULT WINAPI IDirectXFileDataImpl_GetData(IDirectXFileData* iface, LPCS
}
*pcbSize = This->pobj->size;
*ppvData = This->pobj->pdata;
*ppvData = This->pobj->root->pdata + This->pobj->pos_data;
return DXFILE_OK;
}
@ -1063,7 +1063,8 @@ static HRESULT WINAPI IDirectXFileEnumObjectImpl_GetNextDataObject(IDirectXFileE
hr = DXFILEERR_BADALLOC;
goto error;
}
This->buf.cur_pdata = This->buf.pdata = object->pdata = pdata;
This->buf.pxo->pdata = This->buf.pdata = object->pdata = pdata;
This->buf.cur_pos_data = 0;
pstrings = HeapAlloc(GetProcessHeap(), 0, MAX_STRINGS_BUFFER);
if (!pstrings)

6
dlls/d3dxof/d3dxof_private.h
View File

@ -66,7 +66,7 @@ typedef struct {
typedef struct {
char* name;
LPBYTE start;
ULONG start;
ULONG size;
} xobject_member;
@ -77,12 +77,14 @@ struct _xobject {
GUID class_id;
GUID type;
LPBYTE pdata;
ULONG pos_data;
DWORD size;
ULONG nb_members;
xobject_member members[MAX_MEMBERS];
ULONG nb_childs;
ULONG nb_subobjects;
struct _xobject * childs[MAX_CHILDS];
struct _xobject * root;
};
typedef struct _xobject xobject;
@ -130,7 +132,7 @@ typedef struct {
BOOL token_present;
BOOL txt;
ULONG cur_subobject;
LPBYTE cur_pdata;
ULONG cur_pos_data;
LPBYTE cur_pstrings;
BYTE value[100];
xobject** pxo_globals;

31
dlls/d3dxof/parsing.c
View File

@ -1009,14 +1009,14 @@ static BOOL parse_object_members_list(parse_buffer * buf)
int nb_elems = 1;
buf->pxo->members[i].name = pt->members[i].name;
buf->pxo->members[i].start = buf->cur_pdata;
buf->pxo->members[i].start = buf->cur_pos_data;
for (k = 0; k < pt->members[i].nb_dims; k++)
{
if (pt->members[i].dim_fixed[k])
nb_elems *= pt->members[i].dim_value[k];
else
nb_elems *= *(DWORD*)buf->pxo->members[pt->members[i].dim_value[k]].start;
nb_elems *= *(DWORD*)(buf->pxo->root->pdata + buf->pxo->members[pt->members[i].dim_value[k]].start);
}
TRACE("Elements to consider: %d\n", nb_elems);
@ -1076,20 +1076,20 @@ static BOOL parse_object_members_list(parse_buffer * buf)
last_dword = *(DWORD*)buf->value;
TRACE("%s = %d\n", pt->members[i].name, *(DWORD*)buf->value);
/* Assume larger size */
if ((buf->cur_pdata - buf->pdata + 4) > MAX_DATA_SIZE)
if ((buf->cur_pos_data + 4) > MAX_DATA_SIZE)
{
FIXME("Buffer too small\n");
return FALSE;
}
if (pt->members[i].type == TOKEN_WORD)
{
*(((WORD*)(buf->cur_pdata))) = (WORD)(*(DWORD*)buf->value);
buf->cur_pdata += 2;
*(((WORD*)(buf->cur_pos_data + buf->pdata))) = (WORD)(*(DWORD*)buf->value);
buf->cur_pos_data += 2;
}
else if (pt->members[i].type == TOKEN_DWORD)
{
*(((DWORD*)(buf->cur_pdata))) = (DWORD)(*(DWORD*)buf->value);
buf->cur_pdata += 4;
*(((DWORD*)(buf->cur_pos_data + buf->pdata))) = (DWORD)(*(DWORD*)buf->value);
buf->cur_pos_data += 4;
}
else
{
@ -1102,15 +1102,15 @@ static BOOL parse_object_members_list(parse_buffer * buf)
get_TOKEN(buf);
TRACE("%s = %f\n", pt->members[i].name, *(float*)buf->value);
/* Assume larger size */
if ((buf->cur_pdata - buf->pdata + 4) > MAX_DATA_SIZE)
if ((buf->cur_pos_data + 4) > MAX_DATA_SIZE)
{
FIXME("Buffer too small\n");
return FALSE;
}
if (pt->members[i].type == TOKEN_FLOAT)
{
*(((float*)(buf->cur_pdata))) = (float)(*(float*)buf->value);
buf->cur_pdata += 4;
*(((float*)(buf->cur_pos_data + buf->pdata))) = (float)(*(float*)buf->value);
buf->cur_pos_data += 4;
}
else
{
@ -1123,7 +1123,7 @@ static BOOL parse_object_members_list(parse_buffer * buf)
get_TOKEN(buf);
TRACE("%s = %s\n", pt->members[i].name, (char*)buf->value);
/* Assume larger size */
if ((buf->cur_pdata - buf->pdata + 4) > MAX_DATA_SIZE)
if ((buf->cur_pos_data + 4) > MAX_DATA_SIZE)
{
FIXME("Buffer too small\n");
return FALSE;
@ -1137,9 +1137,9 @@ static BOOL parse_object_members_list(parse_buffer * buf)
return FALSE;
}
strcpy((char*)buf->cur_pstrings, (char*)buf->value);
*(((LPCSTR*)(buf->cur_pdata))) = (char*)buf->cur_pstrings;
*(((LPCSTR*)(buf->cur_pos_data + buf->pdata))) = (char*)buf->cur_pstrings;
buf->cur_pstrings += len;
buf->cur_pdata += 4;
buf->cur_pos_data += 4;
}
else
{
@ -1173,7 +1173,7 @@ static BOOL parse_object_parts(parse_buffer * buf, BOOL allow_optional)
if (allow_optional)
{
buf->pxo->size = buf->cur_pdata - buf->pxo->pdata;
buf->pxo->size = buf->cur_pos_data - buf->pxo->pos_data;
/* Skip trailing semicolon */
while (check_TOKEN(buf) == TOKEN_SEMICOLON)
@ -1242,8 +1242,9 @@ BOOL parse_object(parse_buffer * buf)
{
int i;
buf->pxo->pdata = buf->cur_pdata;
buf->pxo->pos_data = buf->cur_pos_data;
buf->pxo->ptarget = NULL;
buf->pxo->root = buf->pxo_tab;
if (get_TOKEN(buf) != TOKEN_NAME)
return FALSE;