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WIP : code clean-up.
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@jfdelnero
jfdelnero committed Nov 13, 2023
1 parent 31a8efc commit f9a6ccc
Showing 1 changed file with 105 additions and 69 deletions.
174 changes: 105 additions & 69 deletions libhxcfe/sources/loaders/ede_loader/ede_loader.c
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Original file line number Diff line number Diff line change
Expand Up @@ -35,10 +35,10 @@
//-------------------------------------------------------------------------------//
//----------------------------------------------------- http://hxc2001.free.fr --//
///////////////////////////////////////////////////////////////////////////////////
// File : ede_DiskFile.c
// File : ede_loader.c
// Contains: ede floppy image loader
//
// Written by: DEL NERO Jean Francois
// Written by: Jean-François DEL NERO
//
// Change History (most recent first):
///////////////////////////////////////////////////////////////////////////////////
Expand Down Expand Up @@ -71,7 +71,6 @@ int EDE_libIsValidDiskFile( HXCFE_IMGLDR * imgldr_ctx, HXCFE_IMGLDR_FILEINFOS *
hxc_checkfileext(imgfile->path,"edv",SYS_PATH_TYPE)
)
{

imgldr_ctx->hxcfe->hxc_printf(MSG_DEBUG,"EDE_libIsValidDiskFile : EDE file !");

if((imgfile->file_header[0]==0x0D) && (imgfile->file_header[1]==0x0A))
Expand Down Expand Up @@ -121,25 +120,22 @@ int EDE_libIsValidDiskFile( HXCFE_IMGLDR * imgldr_ctx, HXCFE_IMGLDR_FILEINFOS *
}
}



int EDE_libLoad_DiskFile(HXCFE_IMGLDR * imgldr_ctx,HXCFE_FLOPPY * floppydisk,char * imgfile,void * parameters)
{

FILE * f;
unsigned int filesize;
int i,j,l,k;
int gap3len,interleave;
int rpm,sectorsize;
HXCFE_CYLINDER* currentcylinder;
HXCFE_CYLINDER *currentcylinder;
unsigned char header_buffer[512];
int header_offset;
int blocknum;
int number_of_block;
unsigned char bitmask;
unsigned char trackformat;
int skew;
HXCFE_SECTCFG * sectorconfig;
HXCFE_SECTCFG *sectorconfig;
unsigned int sectorsizelayout[32];
unsigned int sectoridlayout[32];

Expand All @@ -158,15 +154,13 @@ int EDE_libLoad_DiskFile(HXCFE_IMGLDR * imgldr_ctx,HXCFE_FLOPPY * floppydisk,cha

if((filesize!=0) && (header_buffer[0]==0x0D) && (header_buffer[1]==0x0A))
{

floppydisk->floppyiftype=GENERIC_SHUGART_DD_FLOPPYMODE;
sectorsize=512;
rpm=300;
trackformat=ISOFORMAT_DD;
skew=0;
switch(header_buffer[0x1FF])
{

case 0x01:
imgldr_ctx->hxcfe->hxc_printf(MSG_INFO_0,"Mirage (DD) format");
header_offset=0xA0;
Expand All @@ -177,11 +171,16 @@ int EDE_libLoad_DiskFile(HXCFE_IMGLDR * imgldr_ctx,HXCFE_FLOPPY * floppydisk,cha
floppydisk->floppySectorPerTrack=6;
gap3len=255;
interleave=1;
for(k=0;k<floppydisk->floppySectorPerTrack;k++)sectorsizelayout[k]=sectorsize;
for(k=1;k<floppydisk->floppySectorPerTrack;k++)sectoridlayout[k]=k-1;

for(k=0;k<floppydisk->floppySectorPerTrack;k++)
sectorsizelayout[k]=sectorsize;

for(k=1;k<floppydisk->floppySectorPerTrack;k++)
sectoridlayout[k]=k-1;

sectoridlayout[0]=5;
sectorsizelayout[0]=512;
break;
break;

case 0x02:
imgldr_ctx->hxcfe->hxc_printf(MSG_INFO_0,"SQ-80 (DD) format");
Expand All @@ -194,11 +193,16 @@ int EDE_libLoad_DiskFile(HXCFE_IMGLDR * imgldr_ctx,HXCFE_FLOPPY * floppydisk,cha
floppydisk->floppySectorPerTrack=6;
gap3len=255;
interleave=1;
for(k=0;k<floppydisk->floppySectorPerTrack;k++)sectorsizelayout[k]=sectorsize;
for(k=1;k<floppydisk->floppySectorPerTrack;k++)sectoridlayout[k]=k-1;

for(k=0;k<floppydisk->floppySectorPerTrack;k++)
sectorsizelayout[k]=sectorsize;

for(k=1;k<floppydisk->floppySectorPerTrack;k++)
sectoridlayout[k]=k-1;

sectoridlayout[0]=5;
sectorsizelayout[0]=512;
break;
break;

case 0x03:
imgldr_ctx->hxcfe->hxc_printf(MSG_INFO_0,"EPS (DD) format");
Expand All @@ -210,9 +214,13 @@ int EDE_libLoad_DiskFile(HXCFE_IMGLDR * imgldr_ctx,HXCFE_FLOPPY * floppydisk,cha
gap3len=36;
interleave=1;
skew=2;
for(k=0;k<floppydisk->floppySectorPerTrack;k++)sectorsizelayout[k]=sectorsize;
for(k=0;k<floppydisk->floppySectorPerTrack;k++)sectoridlayout[k]=k;
break;

for(k=0;k<floppydisk->floppySectorPerTrack;k++)
sectorsizelayout[k]=sectorsize;

for(k=0;k<floppydisk->floppySectorPerTrack;k++)
sectoridlayout[k]=k;
break;

case 0x04:
imgldr_ctx->hxcfe->hxc_printf(MSG_INFO_0,"VFX-SD (DD) format");
Expand All @@ -223,9 +231,13 @@ int EDE_libLoad_DiskFile(HXCFE_IMGLDR * imgldr_ctx,HXCFE_FLOPPY * floppydisk,cha
floppydisk->floppySectorPerTrack=10;
gap3len=36;
interleave=1;
for(k=0;k<floppydisk->floppySectorPerTrack;k++)sectorsizelayout[k]=sectorsize;
for(k=0;k<floppydisk->floppySectorPerTrack;k++)sectoridlayout[k]=k;
break;

for(k=0;k<floppydisk->floppySectorPerTrack;k++)
sectorsizelayout[k]=sectorsize;

for(k=0;k<floppydisk->floppySectorPerTrack;k++)
sectoridlayout[k]=k;
break;

case 0xcb:
imgldr_ctx->hxcfe->hxc_printf(MSG_INFO_0,"ASR-10 HD format");
Expand All @@ -239,9 +251,13 @@ int EDE_libLoad_DiskFile(HXCFE_IMGLDR * imgldr_ctx,HXCFE_FLOPPY * floppydisk,cha
gap3len = 36;
interleave=1;
skew=2;
for(k=0;k<floppydisk->floppySectorPerTrack;k++)sectorsizelayout[k]=sectorsize;
for(k=0;k<floppydisk->floppySectorPerTrack;k++)sectoridlayout[k]=k;
break;

for(k=0;k<floppydisk->floppySectorPerTrack;k++)
sectorsizelayout[k]=sectorsize;

for(k=0;k<floppydisk->floppySectorPerTrack;k++)
sectoridlayout[k]=k;
break;

case 0xcc:
imgldr_ctx->hxcfe->hxc_printf(MSG_INFO_0,"TS-10/12 HD format");
Expand All @@ -254,9 +270,13 @@ int EDE_libLoad_DiskFile(HXCFE_IMGLDR * imgldr_ctx,HXCFE_FLOPPY * floppydisk,cha
gap3len=40;
interleave=1;
skew=2;
for(k=0;k<floppydisk->floppySectorPerTrack;k++)sectorsizelayout[k]=sectorsize;
for(k=0;k<floppydisk->floppySectorPerTrack;k++)sectoridlayout[k]=k;
break;

for(k=0;k<floppydisk->floppySectorPerTrack;k++)
sectorsizelayout[k]=sectorsize;

for(k=0;k<floppydisk->floppySectorPerTrack;k++)
sectoridlayout[k]=k;
break;

case 0x07:
floppydisk->floppyiftype=IBMPC_DD_FLOPPYMODE;
Expand All @@ -269,9 +289,13 @@ int EDE_libLoad_DiskFile(HXCFE_IMGLDR * imgldr_ctx,HXCFE_FLOPPY * floppydisk,cha
gap3len=40;
interleave=1;
skew=2;
for(k=0;k<floppydisk->floppySectorPerTrack;k++)sectorsizelayout[k]=sectorsize;
for(k=0;k<floppydisk->floppySectorPerTrack;k++)sectoridlayout[k]=k;
break;

for(k=0;k<floppydisk->floppySectorPerTrack;k++)
sectorsizelayout[k]=sectorsize;

for(k=0;k<floppydisk->floppySectorPerTrack;k++)
sectoridlayout[k]=k;
break;

default:
imgldr_ctx->hxcfe->hxc_printf(MSG_ERROR,"Unknow format : %x !",header_buffer[0x1FF]);
Expand All @@ -282,20 +306,31 @@ int EDE_libLoad_DiskFile(HXCFE_IMGLDR * imgldr_ctx,HXCFE_FLOPPY * floppydisk,cha

number_of_block=floppydisk->floppyNumberOfTrack*floppydisk->floppyNumberOfSide*floppydisk->floppySectorPerTrack;

sectorconfig=malloc(sizeof(HXCFE_SECTCFG) * floppydisk->floppySectorPerTrack);
sectorconfig = malloc(sizeof(HXCFE_SECTCFG) * floppydisk->floppySectorPerTrack);
if(!sectorconfig)
{
hxc_fclose(f);
return HXCFE_INTERNALERROR;
}

memset(sectorconfig,0,sizeof(HXCFE_SECTCFG) * floppydisk->floppySectorPerTrack);

blocknum=0;
bitmask=0x80;

floppydisk->tracks=(HXCFE_CYLINDER**)malloc(sizeof(HXCFE_CYLINDER*)*floppydisk->floppyNumberOfTrack);
floppydisk->tracks = (HXCFE_CYLINDER**)malloc(sizeof(HXCFE_CYLINDER*)*floppydisk->floppyNumberOfTrack);
if( !floppydisk->tracks )
{
free(sectorconfig);
hxc_fclose(f);
return HXCFE_INTERNALERROR;
}

imgldr_ctx->hxcfe->hxc_printf(MSG_INFO_1,"%d tracks, %d side(s), %d sectors/track, gap3:%d, interleave:%d,rpm:%d",floppydisk->floppyNumberOfTrack,floppydisk->floppyNumberOfSide,floppydisk->floppySectorPerTrack,gap3len,interleave,rpm);

for(j=0;j<floppydisk->floppyNumberOfTrack;j++)
{

floppydisk->tracks[j]=allocCylinderEntry(rpm,floppydisk->floppyNumberOfSide);
floppydisk->tracks[j] = allocCylinderEntry(rpm,floppydisk->floppyNumberOfSide);
currentcylinder=floppydisk->tracks[j];

for(i=0;i<floppydisk->floppyNumberOfSide;i++)
Expand All @@ -305,52 +340,55 @@ int EDE_libLoad_DiskFile(HXCFE_IMGLDR * imgldr_ctx,HXCFE_FLOPPY * floppydisk,cha
memset(sectorconfig,0,sizeof(HXCFE_SECTCFG)*floppydisk->floppySectorPerTrack);
for(k=0;k<floppydisk->floppySectorPerTrack;k++)
{
sectorconfig[k].head=i;
sectorconfig[k].cylinder=j;
sectorconfig[k].sector=sectoridlayout[k];
sectorconfig[k].sectorsize=sectorsizelayout[k];
sectorconfig[k].bitrate=floppydisk->floppyBitRate;
sectorconfig[k].gap3=gap3len;
sectorconfig[k].trackencoding=trackformat;
sectorconfig[k].input_data=malloc(sectorsize);
memset(sectorconfig[k].input_data,0,sectorsize);

if(blocknum<number_of_block)
sectorconfig[k].head = i;
sectorconfig[k].cylinder = j;
sectorconfig[k].sector = sectoridlayout[k];
sectorconfig[k].sectorsize = sectorsizelayout[k];
sectorconfig[k].bitrate = floppydisk->floppyBitRate;
sectorconfig[k].gap3 = gap3len;
sectorconfig[k].trackencoding = trackformat;
sectorconfig[k].input_data = malloc(sectorsize);
if(sectorconfig[k].input_data)
{
if(!(header_buffer[header_offset]&bitmask))
memset(sectorconfig[k].input_data,0,sectorsize);

if(blocknum<number_of_block)
{
imgldr_ctx->hxcfe->hxc_printf(MSG_DEBUG,"T:%.3d S:%d Sector:%.2d Size:%.4d File offset: 0x%.8x",j,i,sectorconfig[k].sector,sectorconfig[k].sectorsize,ftell(f));
hxc_fread(sectorconfig[k].input_data,sectorsize,f);
if(!(header_buffer[header_offset]&bitmask))
{
imgldr_ctx->hxcfe->hxc_printf(MSG_DEBUG,"T:%.3d S:%d Sector:%.2d Size:%.4d File offset: 0x%.8x",j,i,sectorconfig[k].sector,sectorconfig[k].sectorsize,ftell(f));
hxc_fread(sectorconfig[k].input_data,sectorsize,f);
}
else
{
imgldr_ctx->hxcfe->hxc_printf(MSG_DEBUG,"T:%.3d S:%d Sector:%.2d Size:%.4d File offset: ----------",j,i,sectorconfig[k].sector,sectorconfig[k].sectorsize);
for(l=0;l<(sectorconfig[k].sectorsize/2);l++)
{
sectorconfig[k].input_data[(l*2)]=0x6D;
sectorconfig[k].input_data[(l*2)+1]=0xB6;
}
}
bitmask=bitmask>>1;
if(!bitmask)
{
header_offset++;
bitmask=0x80;
}
blocknum++;
}
else
{
imgldr_ctx->hxcfe->hxc_printf(MSG_DEBUG,"T:%.3d S:%d Sector:%.2d Size:%.4d File offset: ----------",j,i,sectorconfig[k].sector,sectorconfig[k].sectorsize);
imgldr_ctx->hxcfe->hxc_printf(MSG_DEBUG,"T:%.3d S:%d Sector:%.2d Size:%.4d",j,i,sectorconfig[k].sector,sectorconfig[k].sectorsize);
for(l=0;l<(sectorconfig[k].sectorsize/2);l++)
{
sectorconfig[k].input_data[(l*2)]=0x6D;
sectorconfig[k].input_data[(l*2)+1]=0xB6;
}
}
bitmask=bitmask>>1;
if(!bitmask)
{
header_offset++;
bitmask=0x80;
}
blocknum++;
}
else
{
imgldr_ctx->hxcfe->hxc_printf(MSG_DEBUG,"T:%.3d S:%d Sector:%.2d Size:%.4d",j,i,sectorconfig[k].sector,sectorconfig[k].sectorsize);
for(l=0;l<(sectorconfig[k].sectorsize/2);l++)
{
sectorconfig[k].input_data[(l*2)]=0x6D;
sectorconfig[k].input_data[(l*2)+1]=0xB6;
}
}
}

currentcylinder->sides[i]=tg_generateTrackEx(floppydisk->floppySectorPerTrack,sectorconfig,interleave,(((j<<1)|(i&1))*skew),floppydisk->floppyBitRate,rpm,trackformat,128,2500,-2500);
currentcylinder->sides[i] = tg_generateTrackEx(floppydisk->floppySectorPerTrack,sectorconfig,interleave,(((j<<1)|(i&1))*skew),floppydisk->floppyBitRate,rpm,trackformat,128,2500,-2500);

for(k=0;k<floppydisk->floppySectorPerTrack;k++)
{
Expand All @@ -374,7 +412,6 @@ int EDE_libLoad_DiskFile(HXCFE_IMGLDR * imgldr_ctx,HXCFE_FLOPPY * floppydisk,cha

int EDE_libGetPluginInfo(HXCFE_IMGLDR * imgldr_ctx,uint32_t infotype,void * returnvalue)
{

static const char plug_id[]="ENSONIQ_EDE";
static const char plug_desc[]="ENSONIQ EDE Loader";
static const char plug_ext[]="ede";
Expand All @@ -397,4 +434,3 @@ int EDE_libGetPluginInfo(HXCFE_IMGLDR * imgldr_ctx,uint32_t infotype,void * retu
plug_ext
);
}

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