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cost_parse.y
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cost_parse.y
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/* ScummC
* Copyright (C) 2005-2006 Alban Bedel
* Portions Copyright (C) 2010 James Urquhart
*
* 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.
*
*/
/**
* @file cost_parse.y
* @ingroup scumm
* @brief Costume compiler
*/
%{
#include "config.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <inttypes.h>
#include <errno.h>
#ifndef IS_MINGW
#include <glob.h>
#endif
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include "scc_fd.h"
#include "scc_util.h"
#include "scc_param.h"
#include "scc_img.h"
#include "cost_parse.tab.h"
#include "scc_lex.h"
#include "cost_help.h"
#define YYERROR_VERBOSE 1
int yylex(void);
int yyerror (const char *s);
#define COST_ABORT(at,msg...) { \
printf("Line %d, column %d: ",at.first_line,at.first_column); \
printf(msg); \
YYABORT; \
}
typedef struct cost_pic cost_pic_t;
struct cost_pic {
cost_pic_t* next;
// name from the sym
char* name;
// number of references from limbs
unsigned ref;
// offset where it will be written
unsigned offset;
// global index for akos
unsigned idx;
// path/glob
char* path;
int is_glob;
// params, they will be copied for globs
int16_t rel_x,rel_y;
int16_t move_x,move_y;
uint16_t width,height;
uint8_t* data;
uint32_t data_size;
};
static cost_pic_t* cur_pic = NULL;
static cost_pic_t* pic_list = NULL;
#define COST_MAX_LIMBS 16
#define LIMB_MAX_PICTURES 0x70
#define COST_MAX_DIR 4
typedef struct cost_limb {
char* name;
unsigned num_pic;
cost_pic_t* pic[LIMB_MAX_PICTURES];
} cost_limb_t;
static cost_limb_t limbs[COST_MAX_LIMBS];
static cost_limb_t* cur_limb = NULL;
#define COST_MAX_CMD_ARG 1
// Show a picture
#define COST_CMD_DISPLAY 0x00
// Play a sound?
#define COST_CMD_SOUND 0x70
// Hide the track
#define COST_CMD_HIDE 0x79
// Show the track
#define COST_CMD_SHOW 0x7A
// Display nothing
#define COST_CMD_NOP 0x7B
// Increment the anim counter
#define COST_CMD_COUNT 0x7C
typedef struct cost_cmd cost_cmd_t;
struct cost_cmd {
cost_cmd_t* next;
unsigned type;
union {
unsigned u;
int i;
cost_pic_t* pic;
} arg[COST_MAX_CMD_ARG];
};
#define COST_MAX_ANIMS 0x3F
#define COST_MAX_LIMB_CMDS 0x7F
typedef struct cost_limb_anim {
unsigned len;
unsigned flags;
uint8_t cmd[COST_MAX_LIMB_CMDS];
cost_cmd_t* cmd_list;
} cost_limb_anim_t;
typedef struct cost_anim_dir {
unsigned limb_mask;
cost_limb_anim_t limb[COST_MAX_LIMBS];
} cost_anim_dir_t;
typedef struct cost_anim {
char* name;
cost_anim_dir_t dir[COST_MAX_DIR];
} cost_anim_t;
static cost_anim_t anims[COST_MAX_ANIMS];
static cost_anim_t* cur_anim = NULL;
static cost_anim_dir_t* cur_dir = NULL;
#define COST_MAX_PALETTE_SIZE 32
static unsigned pal_size = 0;
static scc_img_t* pal_room = NULL;
static uint8_t pal[COST_MAX_PALETTE_SIZE];
// Default to no flip
static unsigned cost_flags = 0x80;
static char* img_path = NULL;
static char* cost_output = NULL;
static scc_fd_t* out_fd = NULL;
// Output a AKOS instead of COST
static int akos = 0;
// Ouput a header
static char* header_name = NULL;
static char* symbol_prefix = NULL;
static int cost_pic_load(cost_pic_t* pic,char* file);
static cost_pic_t* find_pic(char* name) {
cost_pic_t* p;
for(p = pic_list ; p ; p = p->next)
if(!strcmp(name,p->name)) break;
return p;
}
struct dir_map {
char* name;
unsigned id;
} dir_map[] = {
{ "W", 0 },
{ "E", 1 },
{ "S", 2 },
{ "N", 3 },
{ NULL, 0 }
};
struct anim_map {
char* name;
unsigned id;
} anim_map[] = {
{ "init", 1 },
{ "walk", 2 },
{ "stand", 3 },
{ "talkStart", 4 },
{ "talkStop", 5 },
{ NULL, 0 }
};
#define ANIM_USER_START 6
%}
%union {
int integer; // INTEGER, number
char* str; // STRING, ID
int intpair[2];
uint8_t* intlist;
struct cost_cmd* cmd;
}
%token PALETTE
%token FLAGS
%token LOOP FLIP
%token PICTURE
%token LIMB
%token ANIM
%token <integer> INTEGER
%token <str> STRING
%token <str> SYM
%token PATH GLOB
%token POSITION
%token MOVE
%token SHOW HIDE NOP COUNT SOUND
%token ERROR
%type <integer> number location
%type <intpair> numberpair
%type <intlist> intlist intlistitem
%type <cmd> cmdlist cmdlistitem
%type <intpair> limbanimflags flaglist flag flagvalue
%%
srcfile: /* empty */
| costume
;
// the palette declaration is required and must be
// first.
costume: palette costflags statementlist
;
statementlist: ';'
| statement ';'
| statementlist statement ';'
;
statement: dec
| picture
| anim
;
dec: picturedec
{
cur_pic = NULL;
}
| limbdec
{
cur_limb = NULL;
}
| animdec
{
cur_anim = NULL;
}
;
picture: picturedec '=' '{' picparamlist '}'
{
// check that the pic have an image
if(!cur_pic->path)
COST_ABORT(@1,"Picture %s has no path defined.\n",
cur_pic->name);
if(cur_pic->is_glob) {
glob_t gl;
int n,nlen = strlen(cur_pic->name);
char name[nlen+16];
cost_pic_t* p;
// expand the glob
if(glob(cur_pic->path,0,NULL,&gl))
COST_ABORT(@1,"Glob pattern error: %s\n",cur_pic->path);
if(!gl.gl_pathc)
COST_ABORT(@1,"Glob pattern didn't match anything: %s\n",cur_pic->path);
// detach the current pic from the list
if(pic_list == cur_pic)
pic_list = cur_pic->next;
else {
for(p = pic_list ; p && p->next != cur_pic ; p = p->next);
if(!p) COST_ABORT(@1,"Internal error: failed to find current pic in pic list.\n");
p->next = cur_pic->next;
}
cur_pic->next = NULL;
// create the new pictures
for(n = 0 ; n < gl.gl_pathc ; n++) {
sprintf(name,"%s%02d",cur_pic->name,n);
p = find_pic(name);
if(p) {
if(p->path)
COST_ABORT(@1,"Glob expansion failed: %s is already defined\n",name);
} else {
p = calloc(1,sizeof(cost_pic_t));
p->name = strdup(name);
}
// load it up
p->path = strdup(gl.gl_pathv[n]);
if(!cost_pic_load(p,p->path))
COST_ABORT(@1,"Failed to load %s.\n",p->path);
// copy the position, etc
p->rel_x = cur_pic->rel_x;
p->rel_y = cur_pic->rel_y;
p->move_x = cur_pic->move_x;
p->move_y = cur_pic->move_y;
// append it to the list
p->next = pic_list;
pic_list = p;
}
// free the cur_pic
free(cur_pic->name);
free(cur_pic->path);
free(cur_pic);
globfree(&gl);
} else {
// load it up
if(!cost_pic_load(cur_pic,cur_pic->path))
COST_ABORT(@1,"Failed to load %s.\n",cur_pic->path);
}
cur_pic = NULL;
}
;
picturedec: PICTURE SYM
{
cost_pic_t* p = find_pic($2);
// alloc the pic
if(!p) {
p = calloc(1,sizeof(cost_pic_t));
p->name = $2;
p->next = pic_list;
pic_list = p;
} else
free($2);
// set it as the current pic
cur_pic = p;
}
;
picparamlist: picparam
| picparamlist ',' picparam
;
picparam: PATH '=' STRING
{
if(cur_pic->path)
COST_ABORT(@1,"This picture already has a path defined.\n");
if(img_path)
asprintf(&cur_pic->path,"%s/%s",img_path,$3);
else
cur_pic->path = $3;
}
| GLOB '=' STRING
{
if(cur_pic->path)
COST_ABORT(@1,"This picture already has a path defined.\n");
if(cur_pic->ref)
COST_ABORT(@1,"This picture has already been referenced, we can't expand it to a glob anymore.\n");
if(img_path)
asprintf(&cur_pic->path,"%s/%s",img_path,$3);
else
cur_pic->path = $3;
cur_pic->is_glob = 1;
}
| POSITION '=' numberpair
{
cur_pic->rel_x = $3[0];
cur_pic->rel_y = $3[1];
}
| MOVE '=' numberpair
{
cur_pic->move_x = $3[0];
cur_pic->move_y = $3[1];
}
;
limbdec: LIMB SYM location
{
int n;
if($3 >= 0) {
// valid index ??
if($3 >= COST_MAX_LIMBS)
COST_ABORT(@3,"Limb index %d is invalid. Costumes can only have up to %d limbs.\n",
$3,COST_MAX_LIMBS);
n = $3;
// name mismatch ???
if(limbs[n].name && strcmp(limbs[n].name,$2))
COST_ABORT(@3,"Limb %d is already defined with the name %s.\n",
n,limbs[n].name);
} else {
// look if there a limb with that name
for(n = 0 ; n < COST_MAX_LIMBS ; n++) {
if(!limbs[n].name) continue;
if(!strcmp(limbs[n].name,$2)) break;
}
// no limb with that name then look for a free index
if(n == COST_MAX_LIMBS) {
for(n = 0 ; n < COST_MAX_LIMBS ; n++)
if(!limbs[n].name) break;
if(n == COST_MAX_LIMBS)
COST_ABORT(@1,"Too many limbs defined. Costumes can only have up to %d limbs.\n",
COST_MAX_LIMBS);
}
}
// alloc it
if(!limbs[n].name)
limbs[n].name = strdup($2);
}
;
anim: animdec '=' '{' animdirlist '}'
{
cur_anim = NULL;
}
;
animdec: ANIM SYM location
{
int n;
if($3 >= 0) {
// valid index ??
if($3 >= COST_MAX_ANIMS)
COST_ABORT(@3,"Anim index %d is invalid. Costumes can only have up to %d anims.\n",
$3,COST_MAX_ANIMS);
n = $3;
// name mismatch ???
if(anims[n].name && strcmp(anims[n].name,$2))
COST_ABORT(@3,"Anim %d is already defined with the name %s.\n",
n,anims[n].name);
} else {
// look if there a anim with that name
for(n = 0 ; n < COST_MAX_ANIMS ; n++) {
if(!anims[n].name) continue;
if(!strcmp(anims[n].name,$2)) break;
}
// no anim with that name then look for a free index
if(n == COST_MAX_ANIMS) {
// look if it's a predefined name
for(n = 0 ; anim_map[n].name ; n++)
if(!strcmp(anim_map[n].name,$2)) break;
if(anim_map[n].name) n = anim_map[n].id;
else {
for(n = ANIM_USER_START ; n < COST_MAX_ANIMS ; n++)
if(!anims[n].name) break;
if(n == COST_MAX_ANIMS)
COST_ABORT(@1,"Too many anims defined. Costumes can only have up to %d anims.\n",
COST_MAX_ANIMS);
}
}
}
// alloc it
if(!anims[n].name)
anims[n].name = strdup($2);
cur_anim = &anims[n];
}
;
animdirlist: animdir ';'
| animdirlist animdir ';'
;
animdir: animdirname '=' '{' limbanimlist '}'
;
animdirname: SYM
{
int n;
for(n = 0 ; dir_map[n].name ; n++)
if(!strcmp(dir_map[n].name,$1)) break;
if(!dir_map[n].name)
COST_ABORT(@1,"Bad direction name.\n");
cur_dir = cur_anim->dir+dir_map[n].id;
}
;
limbanimlist: limbanim
| limbanimlist ',' limbanim
;
limbanim: SYM '(' cmdlist ')' limbanimflags
{
int n;
// find the limb
for(n = 0 ; n < COST_MAX_LIMBS ; n++)
if(limbs[n].name && !strcmp(limbs[n].name,$1)) break;
if(n == COST_MAX_LIMBS)
COST_ABORT(@1,"There is no limb named %s.\n",$1);
if(cur_dir->limb_mask & (1 << n))
COST_ABORT(@1,"Anim for limb %s is already defined.\n",
limbs[n].name);
cur_dir->limb_mask |= (1 << n);
cur_dir->limb[n].flags |= $5[0];
cur_dir->limb[n].flags &= ~$5[1];
cur_dir->limb[n].cmd_list = $3;
}
| SYM '(' ')' limbanimflags
{
int n;
// find the limb
for(n = 0 ; n < COST_MAX_LIMBS ; n++)
if(limbs[n].name && !strcmp(limbs[n].name,$1)) break;
if(n == COST_MAX_LIMBS)
COST_ABORT(@1,"There is no limb named %s.\n",$1);
if(cur_dir->limb_mask & (1 << n))
COST_ABORT(@1,"Anim for limb %s is already defined.\n",
limbs[n].name);
cur_dir->limb_mask |= (1 << n);
cur_dir->limb[n].flags |= $4[0];
cur_dir->limb[n].flags &= ~$4[1];
}
;
cmdlist: cmdlistitem
| cmdlist ',' cmdlistitem
{
cost_cmd_t* cmd = $1;
while(cmd->next) cmd = cmd->next;
cmd->next = $3;
$$ = $1;
}
;
cmdlistitem: SYM
{
cost_pic_t* p = find_pic($1);
if(!p)
COST_ABORT(@1,"There is no picture named %s.\n",$1);
$$ = calloc(1,sizeof(cost_cmd_t));
$$->type = COST_CMD_DISPLAY;
$$->arg[0].pic = p;
p->ref++;
}
| SHOW
{
$$ = calloc(1,sizeof(cost_cmd_t));
$$->type = COST_CMD_SHOW;
}
| HIDE
{
$$ = calloc(1,sizeof(cost_cmd_t));
$$->type = COST_CMD_HIDE;
}
| NOP
{
$$ = calloc(1,sizeof(cost_cmd_t));
$$->type = COST_CMD_NOP;
}
| COUNT
{
$$ = calloc(1,sizeof(cost_cmd_t));
$$->type = COST_CMD_COUNT;
}
| SOUND '(' INTEGER ')'
{
if($3 < 1 || $3 > 8)
COST_ABORT(@3,"Invalid costume sound index: %d.\n",$3);
$$ = calloc(1,sizeof(cost_cmd_t));
$$->type = COST_CMD_SOUND;
$$->arg[0].i = $3;
}
;
palette: PALETTE '(' intlist ')' ';'
{
if($3[0] != 16 &&
$3[0] != 32)
COST_ABORT(@1,"Invalid palette size. Must be 16 or 32.\n");
pal_size = $3[0];
memcpy(pal,$3+1,pal_size);
free($3);
}
| PALETTE '(' STRING ')' ';'
{
char* pal_path = $3;
if(img_path)
asprintf(&pal_path,"%s/%s",img_path,$3);
pal_room = scc_img_open(pal_path);
if(!pal_room)
COST_ABORT(@1,"Could not load room palette %s.\n", pal_path);
if(!pal_room->pal)
COST_ABORT(@1,"No palette present in %s.\n", pal_path);
if (img_path)
free(pal_path);
}
;
intlist: intlistitem
| intlist ',' intlistitem
{
int l = $1[0] + $3[0];
$$ = realloc($1,l+1);
memcpy($$+$$[0]+1,$3+1,$3[0]);
$$[0] = l;
free($3);
}
;
intlistitem: INTEGER
{
if($1 < 0 || $1 > 255)
COST_ABORT(@1,"List items can't be greater than 255.\n");
$$ = malloc(2);
$$[0] = 1;
$$[1] = $1;
}
| '[' INTEGER '-' INTEGER ']'
{
int i,s,l = $4-$2+1;
if($2 < 0 || $2 > 255)
COST_ABORT(@2,"List items can't be greater than 255.\n");
if($4 < 0 || $4 > 255)
COST_ABORT(@4,"List items can't be greater than 255.\n");
if($4 >= $2)
l = $4-$2+1, s = 1;
else
l = $2-$4+1, s = -1;
$$ = malloc(l+1);
$$[0] = l;
for(i = 0 ; i < l ; i++)
$$[i+1] = $2+s*i;
}
;
costflags: /* empty */
| FLAGS '=' flaglist ';'
{
cost_flags |= $3[0];
cost_flags &= ~$3[1];
}
;
limbanimflags: /* empty */
{
$$[0] = 0;
$$[1] = 0;
}
| flaglist
;
flaglist: flag
| flaglist ',' flag
{
$$[0] |= $3[0];
$$[1] |= $3[1];
}
;
flag: flagvalue
{
$$[0] = $1[0];
$$[1] = $1[1];
}
| '!' flagvalue
{
$$[0] = $2[1];
$$[1] = $2[0];
}
;
flagvalue: FLIP
{
$$[0] = 0;
$$[1] = 0x80;
}
| LOOP
{
$$[0] = 0;
$$[1] = 0x80;
}
;
numberpair: '{' number ',' number '}'
{
$$[0] = $2;
$$[1] = $4;
}
;
number: INTEGER
| '-' INTEGER
{
$$ = - $2;
}
| '+' INTEGER
{
$$ = $2;
}
;
location: /* empty */
{
$$ = -1;
}
| '@' INTEGER
{
$$ = $2;
}
;
%%
// load an image and encode it with the strange vertical RLE
static int cost_pic_load(cost_pic_t* pic,char* file) {
scc_img_t* img = scc_img_open(file);
int color,rep,shr,max_rep,x,y;
uint8_t* dst;
if(!img) return 0;
if (img->pal == NULL) {
scc_log(LOG_ERR,"Image %s must have a palette.\n",file);
scc_img_free(img);
return 0;
}
if (pal_size == 0 && pal_room != NULL) {
// Load the actor color indexes from pal_room
if (img->ncol > 32) {
scc_log(LOG_ERR,"Too many colors in image %s.\n",file);
scc_img_free(img);
return 0;
}
memset(pal, '\0', sizeof(pal));
scc_img_findpal_indexes(img, pal_room, pal);
pal_size = img->ncol;
} else if (pal_size < 0) {
scc_log(LOG_ERR,"Could not find actor palette. Did you specify one?\n");
scc_img_free(img);
return 0;
}
if(img->ncol != pal_size)
printf("Warning, image %s doesn't have the same number of colors as the palette: %d != %d.\n",file,img->ncol,pal_size);
pic->width = img->w;
pic->height = img->h;
// encode the pic
// alloc enouth mem for the worst case
dst = pic->data = malloc(img->w*img->h);
// set the params
switch(pal_size) {
case 16:
shr = 4;
max_rep = 0x0F;
break;
case 32:
shr = 3;
max_rep = 0x07;
break;
}
// take the initial color
color = img->data[0];
if(color >= pal_size) color = pal_size-1;
rep = 0;
for(x = 0 ; x < img->w ; x++)
for(y = 0 ; y < img->h ; y++) {
if(rep < 255 && // can repeat ??
img->data[y*img->w+x] == color) {
rep++;
continue;
}
// write the repetition
if(rep > max_rep) {
pic->data[pic->data_size] = (color << shr);
pic->data_size++;
pic->data[pic->data_size] = rep;
pic->data_size++;
} else {
pic->data[pic->data_size] = (color << shr) | rep;
pic->data_size++;
}
color = img->data[y*img->w+x];
if(color >= pal_size) color = pal_size-1;
rep = 1;
}
// write the last repetition
if(rep > 0) {
if(rep > max_rep) {
pic->data[pic->data_size] = (color << shr);
pic->data_size++;
pic->data[pic->data_size] = rep;
pic->data_size++;
} else {
pic->data[pic->data_size] = (color << shr) | rep;
pic->data_size++;
}
}
if(pic->data_size < img->w*img->h)
pic->data = realloc(pic->data,pic->data_size);
scc_img_free(img);
return 1;
}
// compute the whole size of the costume
static int cost_get_size(int *na,unsigned* coff,unsigned* aoff,unsigned* loff) {
cost_pic_t* p;
int i,j,num_anim,clen = 0;
int size = 4 + // size
2 + // header
1 + // num anim
1 + // format
pal_size + // palette
2 + // cmds offset
2*16; // limbs offset
// get the highest anim id
for(i = COST_MAX_ANIMS-1 ; i >= 0 ; i--)
if(anims[i].name) break;
num_anim = i+1;
size += 2*COST_MAX_DIR*num_anim; // anim offsets
for(i = 0 ; i < num_anim*COST_MAX_DIR ; i++) {
cost_anim_dir_t* anim = &anims[i/COST_MAX_DIR].dir[i%COST_MAX_DIR];
if(aoff) {
if(anim->limb_mask)
aoff[i] = size-clen;
else
aoff[i] = 0;
}
size += 2; // limb mask
if(!anim->limb_mask) continue;
for(j = COST_MAX_LIMBS-1 ; j >= 0 ; j--) {
if(!(anim->limb_mask & (1 << j))) continue;
if(anim->limb[j].len) {
size += 2 + 1 + anim->limb[j].len; // limb start/len + cmds
clen += anim->limb[j].len;
} else
size += 2;
}
}
if(coff) coff[0] = size-clen;
// limbs table
for(i = COST_MAX_LIMBS-1 ; i >= 0 ; i--) {
if(loff) {
if(limbs[i].num_pic > 0)
loff[i] = size;
else
loff[i] = 0;
}
size += 2*limbs[i].num_pic;
}
// pictures
// for(p = pic_list ; p ; p = p->next)
for(i = COST_MAX_LIMBS-1 ; i >= 0 ; i--) // pictures
for(j = 0 ; j < limbs[i].num_pic ; j++) {
if(!(p = limbs[i].pic[j])) continue;
if(p->ref && !p->offset) {
p->offset = size;
size += p->data_size + 6*2;
}
}
na[0] = num_anim;
return size;
}
// Get the id of a picture inside a limb.
// If the picture is not present in the limb it is added to it.
static int cost_get_pic_limb_id(int limb_n, cost_pic_t* pic) {
cost_limb_t* limb = &limbs[limb_n];
int n;
for(n = 0 ; n < limb->num_pic ; n++)
if(limb->pic[n] == pic) break;
if(n < limb->num_pic) return n;
if(n+1 >= LIMB_MAX_PICTURES) {
printf("Too many pictures in limb %d (max %d)\n",
limb_n,LIMB_MAX_PICTURES);
return -1;
}
limb->pic[n] = pic;
limb->num_pic++;
return n;
}
static int cost_create_limbs(void) {
int a,d,l;
for(a = 0 ; a < COST_MAX_ANIMS ; a++) {
if(!anims[a].name) continue;
for(d = 0 ; d < COST_MAX_DIR ; d++) {
for(l = 0 ; l < COST_MAX_LIMBS ; l++) {
cost_limb_anim_t* anim = &anims[a].dir[d].limb[l];
cost_cmd_t* cmd = anim->cmd_list;
unsigned id;
anim->len = 0;
while(cmd) {
if(anim->len+1 > COST_MAX_LIMB_CMDS) goto too_many_cmd;
switch(cmd->type) {
case COST_CMD_DISPLAY:
if((id = cost_get_pic_limb_id(l,cmd->arg[0].pic)) < 0)
return -1;
anim->cmd[anim->len] = id; anim->len++;
break;
case COST_CMD_HIDE:
case COST_CMD_SHOW:
case COST_CMD_NOP:
case COST_CMD_COUNT:
anim->cmd[anim->len] = cmd->type; anim->len++;
break;
case COST_CMD_SOUND:
if(anim->len+2 > COST_MAX_LIMB_CMDS) goto too_many_cmd;
anim->cmd[anim->len] = cmd->type; anim->len++;
anim->cmd[anim->len] = cmd->arg[0].i; anim->len++;
break;
}
cmd = cmd->next;
}
}
}
}
return 0;
too_many_cmd:
printf("Too many commands in limb %d (max %d)\n",l,COST_MAX_LIMB_CMDS);
return -1;
}
static int cost_write(scc_fd_t* fd) {
int size,num_anim,i,j,pad = 0;
cost_pic_t* p;
uint8_t fmt = 0x58 | cost_flags;
unsigned coff,cpos = 0;
unsigned aoff[COST_MAX_ANIMS*COST_MAX_DIR];
unsigned loff[COST_MAX_LIMBS];
if(cost_create_limbs()) return -1;
if(pal_size == 32) fmt |= 1;
size = cost_get_size(&num_anim,&coff,aoff,loff);
// round up to next 2 multiple
if(size & 1) {
size++;
pad = 1;
}
scc_fd_w32(fd,MKID('C','O','S','T'));
scc_fd_w32be(fd,size+8);
scc_fd_w32le(fd,size); // size
scc_fd_w8(fd,'C'); // header
scc_fd_w8(fd,'O');