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Use BLI_endian_switch in dna_genfile

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This commit is contained in:
Campbell Barton
2016-07-14 11:52:53 +10:00
parent b014f03077
commit 1b8e7b5cb0
2 changed files with 34 additions and 72 deletions
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2
source/blender/makesdna/DNA_sdna_types.h
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@@ -45,7 +45,7 @@ typedef struct SDNA {
int pointerlen; /* size of a pointer in bytes */
int nr_types; /* number of basic types + struct types */
char **types; /* type names */
const char **types; /* type names */
short *typelens; /* type lengths */
int nr_structs; /* number of struct types */

104
source/blender/makesdna/intern/dna_genfile.c
View File

@@ -134,39 +134,6 @@
*
*/
/* ************************* ENDIAN STUFF ********************** */
/**
* converts a short between big/little endian.
*/
static short le_short(short temp)
{
short new;
char *rt = (char *)&temp, *rtn = (char *)&new;
rtn[0] = rt[1];
rtn[1] = rt[0];
return new;
}
/**
* converts an int between big/little endian.
*/
static int le_int(int temp)
{
int new;
char *rt = (char *)&temp, *rtn = (char *)&new;
rtn[0] = rt[3];
rtn[1] = rt[2];
rtn[2] = rt[1];
rtn[3] = rt[0];
return new;
}
/* ************************* MAKE DNA ********************** */
/* allowed duplicate code from makesdna.c */
@@ -338,6 +305,11 @@ int DNA_struct_find_nr(const SDNA *sdna, const char *str)
/* ************************* READ DNA ********************** */
BLI_INLINE const char *pad_up_4(const char *ptr)
{
return (const char *)((((uintptr_t)ptr) + 3) & ~3);
}
/**
* In sdna->data the data, now we convert that to something understandable
*/
@@ -366,8 +338,7 @@ static bool init_structDNA(
return false;
}
else {
intptr_t nr;
char *cp;
const char *cp;
data++;
@@ -376,8 +347,10 @@ static bool init_structDNA(
if (*data == *verg) {
data++;
if (do_endian_swap) sdna->nr_names = le_int(*data);
else sdna->nr_names = *data;
sdna->nr_names = *data;
if (do_endian_swap) {
BLI_endian_switch_int32(&sdna->nr_names);
}
data++;
sdna->names = MEM_callocN(sizeof(void *) * sdna->nr_names, "sdnanames");
@@ -387,9 +360,8 @@ static bool init_structDNA(
return false;
}
nr = 0;
cp = (char *)data;
while (nr < sdna->nr_names) {
for (int nr = 0; nr < sdna->nr_names; nr++) {
sdna->names[nr] = cp;
/* "float gravity [3]" was parsed wrong giving both "gravity" and
@@ -404,20 +376,20 @@ static bool init_structDNA(
while (*cp) cp++;
cp++;
nr++;
}
nr = (intptr_t)cp; /* prevent BUS error */
nr = (nr + 3) & ~3;
cp = (char *)nr;
cp = pad_up_4(cp);
/* load type names array */
data = (int *)cp;
strcpy(str, "TYPE");
if (*data == *verg) {
data++;
if (do_endian_swap) sdna->nr_types = le_int(*data);
else sdna->nr_types = *data;
sdna->nr_types = *data;
if (do_endian_swap) {
BLI_endian_switch_int32(&sdna->nr_types);
}
data++;
sdna->types = MEM_callocN(sizeof(void *) * sdna->nr_types, "sdnatypes");
@@ -427,9 +399,8 @@ static bool init_structDNA(
return false;
}
nr = 0;
cp = (char *)data;
while (nr < sdna->nr_types) {
for (int nr = 0; nr < sdna->nr_types; nr++) {
sdna->types[nr] = cp;
/* this is a patch, to change struct names without a conflict with SDNA */
@@ -442,11 +413,9 @@ static bool init_structDNA(
while (*cp) cp++;
cp++;
nr++;
}
nr = (intptr_t)cp; /* prevent BUS error */
nr = (nr + 3) & ~3;
cp = (char *)nr;
cp = pad_up_4(cp);
/* load typelen array */
data = (int *)cp;
@@ -457,13 +426,7 @@ static bool init_structDNA(
sdna->typelens = sp;
if (do_endian_swap) {
short a, *spo = sp;
a = sdna->nr_types;
while (a--) {
spo[0] = le_short(spo[0]);
spo++;
}
BLI_endian_switch_int16_array(sp, sdna->nr_types);
}
sp += sdna->nr_types;
@@ -480,8 +443,10 @@ static bool init_structDNA(
if (*data == *verg) {
data++;
if (do_endian_swap) sdna->nr_structs = le_int(*data);
else sdna->nr_structs = *data;
sdna->nr_structs = *data;
if (do_endian_swap) {
BLI_endian_switch_int32(&sdna->nr_structs);
}
data++;
sdna->structs = MEM_callocN(sizeof(void *) * sdna->nr_structs, "sdnastrcs");
@@ -491,37 +456,34 @@ static bool init_structDNA(
return false;
}
nr = 0;
sp = (short *)data;
while (nr < sdna->nr_structs) {
for (int nr = 0; nr < sdna->nr_structs; nr++) {
sdna->structs[nr] = sp;
if (do_endian_swap) {
short a;
sp[0] = le_short(sp[0]);
sp[1] = le_short(sp[1]);
BLI_endian_switch_int16(&sp[0]);
BLI_endian_switch_int16(&sp[1]);
a = sp[1];
sp += 2;
while (a--) {
sp[0] = le_short(sp[0]);
sp[1] = le_short(sp[1]);
BLI_endian_switch_int16(&sp[0]);
BLI_endian_switch_int16(&sp[1]);
sp += 2;
}
}
else {
sp += 2 * sp[1] + 2;
}
nr++;
}
}
{
/* second part of gravity problem, setting "gravity" type to void */
if (gravity_fix > -1) {
for (intptr_t nr = 0; nr < sdna->nr_structs; nr++) {
for (int nr = 0; nr < sdna->nr_structs; nr++) {
sp = sdna->structs[nr];
if (strcmp(sdna->types[sp[0]], "ClothSimSettings") == 0)
sp[10] = SDNA_TYPE_VOID;
@@ -536,7 +498,7 @@ static bool init_structDNA(
for (intptr_t nr = 0; nr < sdna->nr_structs; nr++) {
sp = sdna->structs[nr];
BLI_ghash_insert(sdna->structs_map, sdna->types[sp[0]], SET_INT_IN_POINTER(nr));
BLI_ghash_insert(sdna->structs_map, (void *)sdna->types[sp[0]], SET_INT_IN_POINTER(nr));
}
}
#endif