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tornavis/source/blender/makesdna/intern/makesdna.c

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/*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
* All rights reserved.
*
* The Original Code is: all of this file.
*
* Contributor(s): none yet.
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file makesdna.c
* \brief Struct muncher for making SDNA.
* \ingroup DNA
*
* \section aboutmakesdnac About makesdna tool
* Originally by Ton, some mods by Frank, and some cleaning and
* extension by Nzc.
*
* Makesdna creates a .c file with a long string of numbers that
* encode the Blender file format. It is fast, because it is basically
* a binary dump. There are some details to mind when reconstructing
* the file (endianness and byte-alignment).
*
* This little program scans all structs that need to be serialized,
* and determined the names and types of all members. It calculates
* how much memory (on disk or in ram) is needed to store that struct,
* and the offsets for reaching a particular one.
*
* There is a facility to get verbose output from sdna. Search for
* \ref debugSDNA. This int can be set to 0 (no output) to some int. Higher
* numbers give more output.
*/
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include "MEM_guardedalloc.h"
#include "../blenlib/BLI_sys_types.h" // for intptr_t support
#define SDNA_MAX_FILENAME_LENGTH 255
/* Included the path relative from /source/blender/ here, so we can move */
/* headers around with more freedom. */
static const char *includefiles[] = {
/* if you add files here, please add them at the end
* of makesdna.c (this file) as well */
"DNA_listBase.h",
"DNA_vec_types.h",
"DNA_ID.h",
"DNA_ipo_types.h",
"DNA_key_types.h",
"DNA_text_types.h",
"DNA_packedFile_types.h",
"DNA_gpu_types.h",
"DNA_camera_types.h",
"DNA_image_types.h",
"DNA_texture_types.h",
"DNA_lamp_types.h",
"DNA_material_types.h",
"DNA_vfont_types.h",
"DNA_meta_types.h",
"DNA_curve_types.h",
"DNA_mesh_types.h",
"DNA_meshdata_types.h",
"DNA_modifier_types.h",
"DNA_lattice_types.h",
"DNA_object_types.h",
"DNA_object_force_types.h",
"DNA_object_fluidsim_types.h",
"DNA_world_types.h",
"DNA_scene_types.h",
"DNA_view3d_types.h",
"DNA_view2d_types.h",
"DNA_space_types.h",
"DNA_userdef_types.h",
"DNA_screen_types.h",
"DNA_sdna_types.h",
"DNA_fileglobal_types.h",
"DNA_sequence_types.h",
"DNA_effect_types.h",
"DNA_outliner_types.h",
"DNA_sound_types.h",
"DNA_collection_types.h",
"DNA_armature_types.h",
"DNA_action_types.h",
"DNA_constraint_types.h",
"DNA_nla_types.h",
"DNA_node_types.h",
"DNA_color_types.h",
"DNA_brush_types.h",
"DNA_customdata_types.h",
"DNA_particle_types.h",
"DNA_cloth_types.h",
"DNA_gpencil_types.h",
"DNA_gpencil_modifier_types.h",
"DNA_shader_fx_types.h",
"DNA_windowmanager_types.h",
"DNA_anim_types.h",
"DNA_boid_types.h",
"DNA_smoke_types.h",
"DNA_speaker_types.h",
"DNA_movieclip_types.h",
"DNA_tracking_types.h",
"DNA_dynamicpaint_types.h",
"DNA_mask_types.h",
"DNA_rigidbody_types.h",
"DNA_freestyle_types.h",
"DNA_linestyle_types.h",
"DNA_cachefile_types.h",
"DNA_layer_types.h",
"DNA_workspace_types.h",
"DNA_lightprobe_types.h",
/* see comment above before editing! */
/* empty string to indicate end of includefiles */
""
};
static int maxdata = 500000, maxnr = 50000;
static int nr_names = 0;
static int nr_types = 0;
static int nr_structs = 0;
static char **names, *namedata; /* at address names[a] is string a */
static char **types, *typedata; /* at address types[a] is string a */
static short *typelens_native; /* at typelens[a] is the length of type 'a' on this systems bitness (32 or 64) */
static short *typelens_32; /* contains sizes as they are calculated on 32 bit systems */
static short *typelens_64; /* contains sizes as they are calculated on 64 bit systems */
static short **structs, *structdata; /* at sp = structs[a] is the first address of a struct definition
* sp[0] is type number
* sp[1] is amount of elements
* sp[2] sp[3] is typenr, namenr (etc) */
/**
* Variable to control debug output of makesdna.
* debugSDNA:
* - 0 = no output, except errors
* - 1 = detail actions
* - 2 = full trace, tell which names and types were found
* - 4 = full trace, plus all gritty details
*/
static int debugSDNA = 0;
static int additional_slen_offset;
/* ************************************************************************** */
/* Functions */
/* ************************************************************************** */
/**
* Add type \c str to struct indexed by \c len, if it was not yet found.
* \param str: char
* \param len: int
*/
static int add_type(const char *str, int len);
/**
* Add variable \c str to
* \param str:
*/
static int add_name(const char *str);
/**
* Search whether this structure type was already found, and if not,
* add it.
*/
static short *add_struct(int namecode);
/**
* Remove comments from this buffer. Assumes that the buffer refers to
* ascii-code text.
*/
static int preprocess_include(char *maindata, int len);
/**
* Scan this file for serializable types.
*/
static int convert_include(const char *filename);
/**
* Determine how many bytes are needed for an array.
*/
static int arraysize(const char *str);
/**
* Determine how many bytes are needed for each struct.
*/
static int calculate_structlens(int);
/**
* Construct the DNA.c file
*/
static void dna_write(FILE *file, const void *pntr, const int size);
/**
* Report all structures found so far, and print their lengths.
*/
void printStructLengths(void);
/* ************************************************************************** */
/* Implementation */
/* ************************************************************************** */
/* ************************* MAKEN DNA ********************** */
static int add_type(const char *str, int len)
{
int nr;
char *cp;
/* first do validity check */
if (str[0] == 0) {
return -1;
}
else if (strchr(str, '*')) {
/* note: this is valid C syntax but we can't parse, complain!
* 'struct SomeStruct* somevar;' <-- correct but we cant handle right now. */
return -1;
}
/* search through type array */
for (nr = 0; nr < nr_types; nr++) {
if (strcmp(str, types[nr]) == 0) {
if (len) {
typelens_native[nr] = len;
typelens_32[nr] = len;
typelens_64[nr] = len;
}
return nr;
}
}
/* append new type */
if (nr_types == 0) {
cp = typedata;
}
else {
cp = types[nr_types - 1] + strlen(types[nr_types - 1]) + 1;
}
strcpy(cp, str);
types[nr_types] = cp;
typelens_native[nr_types] = len;
typelens_32[nr_types] = len;
typelens_64[nr_types] = len;
if (nr_types >= maxnr) {
printf("too many types\n");
return nr_types - 1;
}
nr_types++;
return nr_types - 1;
}
/**
*
* Because of the weird way of tokenizing, we have to 'cast' function
* pointers to ... (*f)(), whatever the original signature. In fact,
* we add name and type at the same time... There are two special
* cases, unfortunately. These are explicitly checked.
*
* */
static int add_name(const char *str)
{
int nr, i, j, k;
char *cp;
char buf[255]; /* stupid limit, change it :) */
const char *name;
additional_slen_offset = 0;
if (str[0] == 0 /* || (str[1] == 0) */) return -1;
if (str[0] == '(' && str[1] == '*') {
/* we handle function pointer and special array cases here, e.g.
* void (*function)(...) and float (*array)[..]. the array case
* name is still converted to (array *)() though because it is that
* way in old dna too, and works correct with elementsize() */
int isfuncptr = (strchr(str + 1, '(')) != NULL;
if (debugSDNA > 3) printf("\t\t\t\t*** Function pointer or multidim array pointer found\n");
/* functionpointer: transform the type (sometimes) */
i = 0;
while (str[i] != ')') {
buf[i] = str[i];
i++;
}
/* Another number we need is the extra slen offset. This extra
* offset is the overshoot after a space. If there is no
* space, no overshoot should be calculated. */
j = i; /* j at first closing brace */
if (debugSDNA > 3) printf("first brace after offset %d\n", i);
j++; /* j beyond closing brace ? */
while ((str[j] != 0) && (str[j] != ')')) {
if (debugSDNA > 3) printf("seen %c ( %d)\n", str[j], str[j]);
j++;
}
if (debugSDNA > 3) printf("seen %c ( %d)\n"
"special after offset%d\n",
str[j], str[j], j);
if (!isfuncptr) {
/* multidimensional array pointer case */
if (str[j] == 0) {
if (debugSDNA > 3) printf("offsetting for multidim array pointer\n");
}
else
printf("Error during tokening multidim array pointer\n");
}
else if (str[j] == 0) {
if (debugSDNA > 3) printf("offsetting for space\n");
/* get additional offset */
k = 0;
while (str[j] != ')') {
j++;
k++;
}
if (debugSDNA > 3) printf("extra offset %d\n", k);
additional_slen_offset = k;
}
else if (str[j] == ')') {
if (debugSDNA > 3) printf("offsetting for brace\n");
; /* don't get extra offset */
}
else {
printf("Error during tokening function pointer argument list\n");
}
/*
* Put )(void) at the end? Maybe )(). Should check this with
* old sdna. Actually, sometimes )(), sometimes )(void...)
* Alas.. such is the nature of braindamage :(
*
* Sorted it out: always do )(), except for headdraw and
* windraw, part of ScrArea. This is important, because some
* linkers will treat different fp's differently when called
* !!! This has to do with interference in byte-alignment and
* the way args are pushed on the stack.
*
* */
buf[i] = 0;
if (debugSDNA > 3) printf("Name before chomping: %s\n", buf);
if ((strncmp(buf, "(*headdraw", 10) == 0) ||
(strncmp(buf, "(*windraw", 9) == 0) )
{
buf[i] = ')';
buf[i + 1] = '(';
buf[i + 2] = 'v';
buf[i + 3] = 'o';
buf[i + 4] = 'i';
buf[i + 5] = 'd';
buf[i + 6] = ')';
buf[i + 7] = 0;
}
else {
buf[i] = ')';
buf[i + 1] = '(';
buf[i + 2] = ')';
buf[i + 3] = 0;
}
/* now precede with buf*/
if (debugSDNA > 3) printf("\t\t\t\t\tProposing fp name %s\n", buf);
name = buf;
}
else {
/* normal field: old code */
name = str;
}
/* search name array */
for (nr = 0; nr < nr_names; nr++) {
if (strcmp(name, names[nr]) == 0) {
return nr;
}
}
/* append new type */
if (nr_names == 0) {
cp = namedata;
}
else {
cp = names[nr_names - 1] + strlen(names[nr_names - 1]) + 1;
}
strcpy(cp, name);
names[nr_names] = cp;
if (nr_names >= maxnr) {
printf("too many names\n");
return nr_names - 1;
}
nr_names++;
return nr_names - 1;
}
static short *add_struct(int namecode)
{
int len;
short *sp;
if (nr_structs == 0) {
structs[0] = structdata;
}
else {
sp = structs[nr_structs - 1];
len = sp[1];
structs[nr_structs] = sp + 2 * len + 2;
}
sp = structs[nr_structs];
sp[0] = namecode;
if (nr_structs >= maxnr) {
printf("too many structs\n");
return sp;
}
nr_structs++;
return sp;
}
static int preprocess_include(char *maindata, int len)
{
int a, newlen, comment = 0;
char *cp, *temp, *md;
/* note: len + 1, last character is a dummy to prevent
* comparisons using uninitialized memory */
temp = MEM_mallocN(len + 1, "preprocess_include");
temp[len] = ' ';
memcpy(temp, maindata, len);
/* remove all c++ comments */
/* replace all enters/tabs/etc with spaces */
cp = temp;
a = len;
comment = 0;
while (a--) {
if (cp[0] == '/' && cp[1] == '/') {
comment = 1;
}
else if (*cp == '\n') {
comment = 0;
}
if (comment || *cp < 32 || *cp > 128) *cp = 32;
cp++;
}
/* data from temp copy to maindata, remove comments and double spaces */
cp = temp;
md = maindata;
newlen = 0;
comment = 0;
a = len;
while (a--) {
if (cp[0] == '/' && cp[1] == '*') {
comment = 1;
cp[0] = cp[1] = 32;
}
if (cp[0] == '*' && cp[1] == '/') {
comment = 0;
cp[0] = cp[1] = 32;
}
/* do not copy when: */
if (comment) {
/* pass */
}
else if (cp[0] == ' ' && cp[1] == ' ') {
/* pass */
}
else if (cp[-1] == '*' && cp[0] == ' ') {
/* pointers with a space */
} /* skip special keywords */
else if (strncmp("DNA_DEPRECATED", cp, 14) == 0) {
/* single values are skipped already, so decrement 1 less */
a -= 13;
cp += 13;
}
else if (strncmp("DNA_PRIVATE_WORKSPACE", cp, 21) == 0) {
/* Check for DNA_PRIVATE_WORKSPACE_READ_WRITE */
if (strncmp("_READ_WRITE", cp + 21, 11) == 0) {
a -= 31;
cp += 31;
}
else {
a -= 20;
cp += 20;
}
}
else {
md[0] = cp[0];
md++;
newlen++;
}
cp++;
}
MEM_freeN(temp);
return newlen;
}
static void *read_file_data(const char *filename, int *r_len)
{
#ifdef WIN32
FILE *fp = fopen(filename, "rb");
#else
FILE *fp = fopen(filename, "r");
#endif
void *data;
if (!fp) {
*r_len = -1;
return NULL;
}
fseek(fp, 0L, SEEK_END);
*r_len = ftell(fp);
fseek(fp, 0L, SEEK_SET);
if (*r_len == -1) {
fclose(fp);
return NULL;
}
data = MEM_mallocN(*r_len, "read_file_data");
if (!data) {
*r_len = -1;
fclose(fp);
return NULL;
}
if (fread(data, *r_len, 1, fp) != 1) {
*r_len = -1;
MEM_freeN(data);
fclose(fp);
return NULL;
}
fclose(fp);
return data;
}
static int convert_include(const char *filename)
{
/* read include file, skip structs with a '#' before it.
* store all data in temporal arrays.
*/
int filelen, count, slen, type, name, strct;
short *structpoin, *sp;
char *maindata, *mainend, *md, *md1;
bool skip_struct;
md = maindata = read_file_data(filename, &filelen);
if (filelen == -1) {
fprintf(stderr, "Can't read file %s\n", filename);
return 1;
}
filelen = preprocess_include(maindata, filelen);
mainend = maindata + filelen - 1;
/* we look for '{' and then back to 'struct' */
count = 0;
skip_struct = false;
while (count < filelen) {
/* code for skipping a struct: two hashes on 2 lines. (preprocess added a space) */
if (md[0] == '#' && md[1] == ' ' && md[2] == '#') {
skip_struct = true;
}
if (md[0] == '{') {
md[0] = 0;
if (skip_struct) {
skip_struct = false;
}
else {
if (md[-1] == ' ') md[-1] = 0;
md1 = md - 2;
while (*md1 != 32) md1--; /* to beginning of word */
md1++;
/* we've got a struct name when... */
if (strncmp(md1 - 7, "struct", 6) == 0) {
strct = add_type(md1, 0);
if (strct == -1) {
fprintf(stderr, "File '%s' contains struct we cant parse \"%s\"\n", filename, md1);
return 1;
}
structpoin = add_struct(strct);
sp = structpoin + 2;
if (debugSDNA > 1) printf("\t|\t|-- detected struct %s\n", types[strct]);
/* first lets make it all nice strings */
md1 = md + 1;
while (*md1 != '}') {
if (md1 > mainend) break;
if (*md1 == ',' || *md1 == ' ') *md1 = 0;
md1++;
}
/* read types and names until first character that is not '}' */
md1 = md + 1;
while (*md1 != '}') {
if (md1 > mainend) break;
/* skip when it says 'struct' or 'unsigned' or 'const' */
if (*md1) {
if (strncmp(md1, "struct", 6) == 0) md1 += 7;
if (strncmp(md1, "unsigned", 8) == 0) md1 += 9;
if (strncmp(md1, "const", 5) == 0) md1 += 6;
/* we've got a type! */
type = add_type(md1, 0);
if (type == -1) {
fprintf(stderr, "File '%s' contains struct we can't parse \"%s\"\n", filename, md1);
return 1;
}
if (debugSDNA > 1) printf("\t|\t|\tfound type %s (", md1);
md1 += strlen(md1);
/* read until ';' */
while (*md1 != ';') {
if (md1 > mainend) break;
if (*md1) {
/* We've got a name. slen needs
* correction for function
* pointers! */
slen = (int) strlen(md1);
if (md1[slen - 1] == ';') {
md1[slen - 1] = 0;
name = add_name(md1);
slen += additional_slen_offset;
sp[0] = type;
sp[1] = name;
if ((debugSDNA > 1) && (names[name] != NULL)) printf("%s |", names[name]);
structpoin[1]++;
sp += 2;
md1 += slen;
break;
}
name = add_name(md1);
slen += additional_slen_offset;
sp[0] = type;
sp[1] = name;
if ((debugSDNA > 1) && (names[name] != NULL)) printf("%s ||", names[name]);
structpoin[1]++;
sp += 2;
md1 += slen;
}
md1++;
}
if (debugSDNA > 1) printf(")\n");
}
md1++;
}
}
}
}
count++;
md++;
}
MEM_freeN(maindata);
return 0;
}
static int arraysize(const char *str)
{
int a, mul = 1;
const char *cp = NULL;
for (a = 0; str[a]; a++) {
if (str[a] == '[') {
cp = &(str[a + 1]);
}
else if (str[a] == ']' && cp) {
/* if 'cp' is a preprocessor definition, it will evaluate to 0,
* the caller needs to check for this case and throw an error */
mul *= atoi(cp);
}
}
return mul;
}
static bool check_field_alignment(int firststruct, int structtype, int type, int len,
const char *name, const char *detail)
{
bool result = true;
if (type < firststruct && typelens_native[type] > 4 && (len % 8)) {
fprintf(stderr, "Align 8 error (%s) in struct: %s %s (add %d padding bytes)\n",
detail, types[structtype], name, len % 8);
result = false;
}
if (typelens_native[type] > 3 && (len % 4) ) {
fprintf(stderr, "Align 4 error (%s) in struct: %s %s (add %d padding bytes)\n",
detail, types[structtype], name, len % 4);
result = false;
}
if (typelens_native[type] == 2 && (len % 2) ) {
fprintf(stderr, "Align 2 error (%s) in struct: %s %s (add %d padding bytes)\n",
detail, types[structtype], name, len % 2);
result = false;
}
return result;
}
static int calculate_structlens(int firststruct)
{
int unknown = nr_structs, lastunknown;
bool dna_error = false;
while (unknown) {
lastunknown = unknown;
unknown = 0;
/* check all structs... */
for (int a = 0; a < nr_structs; a++) {
const short *structpoin = structs[a];
const int structtype = structpoin[0];
/* when length is not known... */
if (typelens_native[structtype] == 0) {
const short *sp = structpoin + 2;
int len_native = 0;
int len_32 = 0;
int len_64 = 0;
bool has_pointer = false;
/* check all elements in struct */
for (int b = 0; b < structpoin[1]; b++, sp += 2) {
int type = sp[0];
const char *cp = names[sp[1]];
int namelen = (int)strlen(cp);
/* is it a pointer or function pointer? */
if (cp[0] == '*' || cp[1] == '*') {
has_pointer = 1;
/* has the name an extra length? (array) */
int mul = 1;
if (cp[namelen - 1] == ']') mul = arraysize(cp);
if (mul == 0) {
fprintf(stderr, "Zero array size found or could not parse %s: '%.*s'\n",
types[structtype], namelen + 1, cp);
dna_error = 1;
}
/* 4-8 aligned/ */
if (sizeof(void *) == 4) {
if (len_native % 4) {
fprintf(stderr, "Align pointer error in struct (len_native 4): %s %s\n",
types[structtype], cp);
dna_error = 1;
}
}
else {
if (len_native % 8) {
fprintf(stderr, "Align pointer error in struct (len_native 8): %s %s\n",
types[structtype], cp);
dna_error = 1;
}
}
if (len_64 % 8) {
fprintf(stderr, "Align pointer error in struct (len_64 8): %s %s\n",
types[structtype], cp);
dna_error = 1;
}
len_native += sizeof(void *) * mul;
len_32 += 4 * mul;
len_64 += 8 * mul;
}
else if (cp[0] == '[') {
/* parsing can cause names "var" and "[3]" to be found for "float var [3]" ... */
fprintf(stderr, "Parse error in struct, invalid member name: %s %s\n",
types[structtype], cp);
dna_error = 1;
}
else if (typelens_native[type]) {
/* has the name an extra length? (array) */
int mul = 1;
if (cp[namelen - 1] == ']') mul = arraysize(cp);
if (mul == 0) {
fprintf(stderr, "Zero array size found or could not parse %s: '%.*s'\n",
types[structtype], namelen + 1, cp);
dna_error = 1;
}
/* struct alignment */
if (type >= firststruct) {
if (sizeof(void *) == 8 && (len_native % 8) ) {
fprintf(stderr, "Align struct error: %s %s\n",
types[structtype], cp);
dna_error = 1;
}
}
/* Check 2-4-8 aligned. */
if (!check_field_alignment(firststruct, structtype, type, len_32, cp, "32 bit")) {
dna_error = 1;
}
if (!check_field_alignment(firststruct, structtype, type, len_64, cp, "64 bit")) {
dna_error = 1;
}
len_native += mul * typelens_native[type];
len_32 += mul * typelens_32[type];
len_64 += mul * typelens_64[type];
}
else {
len_native = 0;
len_32 = 0;
len_64 = 0;
break;
}
}
if (len_native == 0) {
unknown++;
}
else {
typelens_native[structtype] = len_native;
typelens_32[structtype] = len_32;
typelens_64[structtype] = len_64;
/* two ways to detect if a struct contains a pointer:
* has_pointer is set or len_native doesn't match any of 32/64bit lengths*/
if (has_pointer || len_64 != len_native || len_32 != len_native) {
if (len_64 % 8) {
fprintf(stderr, "Sizeerror 8 in struct: %s (add %d bytes)\n",
types[structtype], len_64 % 8);
dna_error = 1;
}
}
if (len_native % 4) {
fprintf(stderr, "Sizeerror 4 in struct: %s (add %d bytes)\n",
types[structtype], len_native % 4);
dna_error = 1;
}
}
}
}
if (unknown == lastunknown) break;
}
if (unknown) {
fprintf(stderr, "ERROR: still %d structs unknown\n", unknown);
if (debugSDNA) {
fprintf(stderr, "*** Known structs :\n");
for (int a = 0; a < nr_structs; a++) {
const short *structpoin = structs[a];
const int structtype = structpoin[0];
/* length unknown */
if (typelens_native[structtype] != 0) {
fprintf(stderr, " %s\n", types[structtype]);
}
}
}
fprintf(stderr, "*** Unknown structs :\n");
for (int a = 0; a < nr_structs; a++) {
const short *structpoin = structs[a];
const int structtype = structpoin[0];
/* length unknown yet */
if (typelens_native[structtype] == 0) {
fprintf(stderr, " %s\n", types[structtype]);
}
}
dna_error = 1;
}
return(dna_error);
}
#define MAX_DNA_LINE_LENGTH 20
static void dna_write(FILE *file, const void *pntr, const int size)
{
static int linelength = 0;
int i;
const char *data;
data = (const char *)pntr;
for (i = 0; i < size; i++) {
fprintf(file, "%d, ", data[i]);
linelength++;
if (linelength >= MAX_DNA_LINE_LENGTH) {
fprintf(file, "\n");
linelength = 0;
}
}
}
void printStructLengths(void)
{
int a, unknown = nr_structs, structtype;
/*int lastunknown;*/ /*UNUSED*/
const short *structpoin;
printf("\n\n*** All detected structs:\n");
while (unknown) {
/*lastunknown = unknown;*/ /*UNUSED*/
unknown = 0;
/* check all structs... */
for (a = 0; a < nr_structs; a++) {
structpoin = structs[a];
structtype = structpoin[0];
printf("\t%s\t:%d\n", types[structtype], typelens_native[structtype]);
}
}
printf("*** End of list\n");
}
static int make_structDNA(const char *baseDirectory, FILE *file, FILE *file_offsets)
{
int len, i;
const short *sp;
/* str contains filenames. Since we now include paths, I stretched */
/* it a bit. Hope this is enough :) -nzc- */
char str[SDNA_MAX_FILENAME_LENGTH], *cp;
int firststruct;
if (debugSDNA > 0) {
fflush(stdout);
printf("Running makesdna at debug level %d\n", debugSDNA);
}
/* the longest known struct is 50k, so we assume 100k is sufficient! */
namedata = MEM_callocN(maxdata, "namedata");
typedata = MEM_callocN(maxdata, "typedata");
structdata = MEM_callocN(maxdata, "structdata");
/* a maximum of 5000 variables, must be sufficient? */
names = MEM_callocN(sizeof(char *) * maxnr, "names");
types = MEM_callocN(sizeof(char *) * maxnr, "types");
typelens_native = MEM_callocN(sizeof(short) * maxnr, "typelens_native");
typelens_32 = MEM_callocN(sizeof(short) * maxnr, "typelens_32");
typelens_64 = MEM_callocN(sizeof(short) * maxnr, "typelens_64");
structs = MEM_callocN(sizeof(short *) * maxnr, "structs");
/**
* Insertion of all known types.
*
* \warning Order of function calls here must be aligned with #eSDNA_Type.
* \warning uint is not allowed! use in structs an unsigned int.
* \warning sizes must match #DNA_elem_type_size().
*/
add_type("char", 1); /* SDNA_TYPE_CHAR */
add_type("uchar", 1); /* SDNA_TYPE_UCHAR */
add_type("short", 2); /* SDNA_TYPE_SHORT */
add_type("ushort", 2); /* SDNA_TYPE_USHORT */
add_type("int", 4); /* SDNA_TYPE_INT */
/* note, long isn't supported,
* these are place-holders to maintain alignment with eSDNA_Type*/
add_type("long", 4); /* SDNA_TYPE_LONG */
add_type("ulong", 4); /* SDNA_TYPE_ULONG */
add_type("float", 4); /* SDNA_TYPE_FLOAT */
add_type("double", 8); /* SDNA_TYPE_DOUBLE */
add_type("int64_t", 8); /* SDNA_TYPE_INT64 */
add_type("uint64_t", 8); /* SDNA_TYPE_UINT64 */
add_type("void", 0); /* SDNA_TYPE_VOID */
/* the defines above shouldn't be output in the padding file... */
firststruct = nr_types;
/* add all include files defined in the global array */
/* Since the internal file+path name buffer has limited length, I do a */
/* little test first... */
/* Mind the breaking condition here! */
if (debugSDNA) printf("\tStart of header scan:\n");
for (i = 0; *(includefiles[i]) != '\0'; i++) {
sprintf(str, "%s%s", baseDirectory, includefiles[i]);
if (debugSDNA) printf("\t|-- Converting %s\n", str);
if (convert_include(str)) {
return (1);
}
}
if (debugSDNA) printf("\tFinished scanning %d headers.\n", i);
if (calculate_structlens(firststruct)) {
/* error */
return(1);
}
/* FOR DEBUG */
if (debugSDNA > 1) {
int a, b;
/* short *elem; */
short num_types;
printf("nr_names %d nr_types %d nr_structs %d\n", nr_names, nr_types, nr_structs);
for (a = 0; a < nr_names; a++) {
printf(" %s\n", names[a]);
}
printf("\n");
sp = typelens_native;
for (a = 0; a < nr_types; a++, sp++) {
printf(" %s %d\n", types[a], *sp);
}
printf("\n");
for (a = 0; a < nr_structs; a++) {
sp = structs[a];
printf(" struct %s elems: %d size: %d\n", types[sp[0]], sp[1], typelens_native[sp[0]]);
num_types = sp[1];
sp += 2;
/* ? num_types was elem? */
for (b = 0; b < num_types; b++, sp += 2) {
printf(" %s %s\n", types[sp[0]], names[sp[1]]);
}
}
}
/* file writing */
if (debugSDNA > 0) printf("Writing file ... ");
if (nr_names == 0 || nr_structs == 0) {
/* pass */
}
else {
dna_write(file, "SDNA", 4);
/* write names */
dna_write(file, "NAME", 4);
len = nr_names;
dna_write(file, &len, 4);
/* calculate size of datablock with strings */
cp = names[nr_names - 1];
cp += strlen(names[nr_names - 1]) + 1; /* +1: null-terminator */
len = (intptr_t) (cp - (char *) names[0]);
len = (len + 3) & ~3;
dna_write(file, names[0], len);
/* write TYPES */
dna_write(file, "TYPE", 4);
len = nr_types;
dna_write(file, &len, 4);
/* calculate datablock size */
cp = types[nr_types - 1];
cp += strlen(types[nr_types - 1]) + 1; /* +1: null-terminator */
len = (intptr_t) (cp - (char *) types[0]);
len = (len + 3) & ~3;
dna_write(file, types[0], len);
/* WRITE TYPELENGTHS */
dna_write(file, "TLEN", 4);
len = 2 * nr_types;
if (nr_types & 1) len += 2;
dna_write(file, typelens_native, len);
/* WRITE STRUCTS */
dna_write(file, "STRC", 4);
len = nr_structs;
dna_write(file, &len, 4);
/* calc datablock size */
sp = structs[nr_structs - 1];
sp += 2 + 2 * (sp[1]);
len = (intptr_t) ((char *) sp - (char *) structs[0]);
len = (len + 3) & ~3;
dna_write(file, structs[0], len);
/* a simple dna padding test */
if (0) {
FILE *fp;
int a;
fp = fopen("padding.c", "w");
if (fp == NULL) {
/* pass */
}
else {
/* add all include files defined in the global array */
for (i = 0; *(includefiles[i]) != '\0'; i++) {
fprintf(fp, "#include \"%s%s\"\n", baseDirectory, includefiles[i]);
}
fprintf(fp, "main() {\n");
sp = typelens_native;
sp += firststruct;
for (a = firststruct; a < nr_types; a++, sp++) {
if (*sp) {
fprintf(fp, "\tif (sizeof(struct %s) - %d) printf(\"ALIGN ERROR:", types[a], *sp);
fprintf(fp, "%%d %s %d ", types[a], *sp);
fprintf(fp, "\\n\", sizeof(struct %s) - %d);\n", types[a], *sp);
}
}
fprintf(fp, "}\n");
fclose(fp);
}
}
/* end end padding test */
}
/* write a simple enum with all structs offsets,
* should only be accessed via SDNA_TYPE_FROM_STRUCT macro */
{
fprintf(file_offsets, "#define SDNA_TYPE_FROM_STRUCT(id) _SDNA_TYPE_##id\n");
fprintf(file_offsets, "enum {\n");
for (i = 0; i < nr_structs; i++) {
const short *structpoin = structs[i];
const int structtype = structpoin[0];
fprintf(file_offsets, "\t_SDNA_TYPE_%s = %d,\n", types[structtype], i);
}
fprintf(file_offsets, "\tSDNA_TYPE_MAX = %d,\n", nr_structs);
fprintf(file_offsets, "};\n");
}
MEM_freeN(namedata);
MEM_freeN(typedata);
MEM_freeN(structdata);
MEM_freeN(names);
MEM_freeN(types);
MEM_freeN(typelens_native);
MEM_freeN(typelens_32);
MEM_freeN(typelens_64);
MEM_freeN(structs);
if (debugSDNA > 0) printf("done.\n");
return(0);
}
/* ************************* END MAKE DNA ********************** */
static void make_bad_file(const char *file, int line)
{
FILE *fp = fopen(file, "w");
fprintf(fp, "#error \"Error! can't make correct DNA.c file from %s:%d, STUPID!\"\n", __FILE__, line);
fclose(fp);
}
#ifndef BASE_HEADER
#define BASE_HEADER "../"
#endif
int main(int argc, char **argv)
{
int return_status = 0;
if (argc != 3 && argc != 4) {
printf("Usage: %s dna.c dna_struct_offsets.h [base directory]\n", argv[0]);
return_status = 1;
}
else {
FILE *file_dna = fopen(argv[1], "w");
FILE *file_dna_offsets = fopen(argv[2], "w");
if (!file_dna) {
printf("Unable to open file: %s\n", argv[1]);
return_status = 1;
}
else if (!file_dna_offsets) {
printf("Unable to open file: %s\n", argv[2]);
return_status = 1;
}
else {
const char *baseDirectory;
if (argc == 4) {
baseDirectory = argv[3];
}
else {
baseDirectory = BASE_HEADER;
}
fprintf(file_dna, "const unsigned char DNAstr[] = {\n");
if (make_structDNA(baseDirectory, file_dna, file_dna_offsets)) {
/* error */
fclose(file_dna);
file_dna = NULL;
make_bad_file(argv[1], __LINE__);
return_status = 1;
}
else {
fprintf(file_dna, "};\n");
fprintf(file_dna, "const int DNAlen = sizeof(DNAstr);\n");
}
}
if (file_dna) {
fclose(file_dna);
}
if (file_dna_offsets) {
fclose(file_dna_offsets);
}
}
return(return_status);
}
/* handy but fails on struct bounds which makesdna doesn't care about
* with quite the same strictness as GCC does */
#if 0
/* include files for automatic dependencies */
/* extra safety check that we are aligned,
* warnings here are easier to fix the makesdna's */
#ifdef __GNUC__
# pragma GCC diagnostic error "-Wpadded"
#endif
#endif /* if 0 */
/* even though DNA supports, 'long' shouldn't be used since it can be either 32 or 64bit,
* use int or int64_t instead.
* Only valid use would be as a runtime variable if an API expected a long,
* but so far we dont have this happening. */
#ifdef __GNUC__
# pragma GCC poison long
#endif
#include "DNA_listBase.h"
#include "DNA_vec_types.h"
#include "DNA_ID.h"
#include "DNA_ipo_types.h"
#include "DNA_key_types.h"
#include "DNA_text_types.h"
#include "DNA_packedFile_types.h"
#include "DNA_camera_types.h"
#include "DNA_image_types.h"
#include "DNA_texture_types.h"
#include "DNA_lamp_types.h"
#include "DNA_material_types.h"
#include "DNA_vfont_types.h"
#include "DNA_meta_types.h"
#include "DNA_curve_types.h"
#include "DNA_mesh_types.h"
#include "DNA_meshdata_types.h"
#include "DNA_modifier_types.h"
#include "DNA_lattice_types.h"
#include "DNA_object_types.h"
#include "DNA_object_force_types.h"
#include "DNA_object_fluidsim_types.h"
#include "DNA_world_types.h"
#include "DNA_scene_types.h"
#include "DNA_view3d_types.h"
#include "DNA_view2d_types.h"
#include "DNA_space_types.h"
#include "DNA_userdef_types.h"
#include "DNA_screen_types.h"
#include "DNA_sdna_types.h"
#include "DNA_fileglobal_types.h"
#include "DNA_sequence_types.h"
#include "DNA_effect_types.h"
#include "DNA_outliner_types.h"
#include "DNA_sound_types.h"
#include "DNA_collection_types.h"
#include "DNA_armature_types.h"
#include "DNA_action_types.h"
#include "DNA_constraint_types.h"
#include "DNA_nla_types.h"
#include "DNA_node_types.h"
#include "DNA_color_types.h"
#include "DNA_brush_types.h"
#include "DNA_customdata_types.h"
#include "DNA_particle_types.h"
#include "DNA_cloth_types.h"
#include "DNA_gpencil_types.h"
#include "DNA_gpencil_modifier_types.h"
#include "DNA_shader_fx_types.h"
#include "DNA_windowmanager_types.h"
#include "DNA_anim_types.h"
#include "DNA_boid_types.h"
#include "DNA_smoke_types.h"
#include "DNA_speaker_types.h"
#include "DNA_movieclip_types.h"
#include "DNA_tracking_types.h"
#include "DNA_dynamicpaint_types.h"
#include "DNA_mask_types.h"
#include "DNA_rigidbody_types.h"
#include "DNA_freestyle_types.h"
#include "DNA_linestyle_types.h"
#include "DNA_cachefile_types.h"
#include "DNA_layer_types.h"
#include "DNA_workspace_types.h"
#include "DNA_lightprobe_types.h"
/* end of list */
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