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/*
A* -------------------------------------------------------------------
B* This file contains source code for the PyMOL computer program
C* Copyright (c) Schrodinger, LLC.
D* -------------------------------------------------------------------
E* It is unlawful to modify or remove this copyright notice.
F* -------------------------------------------------------------------
G* Please see the accompanying LICENSE file for further information.
H* -------------------------------------------------------------------
I* Additional authors of this source file include:
-*
-*
-*
Z* -------------------------------------------------------------------
*/
#include"os_predef.h"
#include"os_std.h"
#include"Raw.h"
#include"Version.h"
#include"Base.h"
#include"Feedback.h"
#include"MemoryDebug.h"
#include"OOMac.h"
#define cRaw_file_stream 0
#define cRaw_header_size 16
#define swap_bytes(a) { \
char u; \
u=*(((char*)(a))); \
*(((char*)(a)))=*(((char*)(a))+3); \
*(((char*)(a))+3)=u; \
u=*(((char*)(a))+1); \
*(((char*)(a))+1)=*(((char*)(a))+2); \
*(((char*)(a))+2)=u; }
CRaw *RawOpenRead(PyMOLGlobals * G, char *fname)
{
int target = 0x04030201;
int reverse = 0x01020304;
int actual;
int ok = true;
OOAlloc(G, CRaw);
I->bufVLA = NULL;
I->G = G;
I->f = fopen(fname, "rb");
if(!I->f) {
ok = false;
} else {
if(feof(I->f))
ok = false;
else if(fread(&actual, 4, 1, I->f) != 1)
ok = false;
else if(actual == target)
I->swap = false;
else if(actual == reverse)
I->swap = true;
else {
PRINTFB(G, FB_Raw, FB_Errors)
"Error-RawOpenRead: Unrecognized byte ordering. This may not a PyMOL file.\n"
ENDFB(G);
ok = false;
}
}
if(!ok) {
if(I->f)
fclose(I->f);
OOFreeP(I);
PRINTFB(G, FB_Raw, FB_Errors)
"Error-RawOpenRead: Unable to open '%s'.\n", fname ENDFB(G);
} else {
I->mode = cRaw_file_stream;
}
return (I);
}
CRaw *RawOpenWrite(PyMOLGlobals * G, char *fname)
{
int target = 0x04030201;
int ok = true;
OOAlloc(G, CRaw);
I->bufVLA = NULL;
I->G = G;
I->f = fopen(fname, "wb");
if(!I->f) {
ok = false;
} else {
fwrite(&target, 4, 1, I->f);
}
if(!ok) {
if(I->f)
fclose(I->f);
OOFreeP(I);
} else {
I->mode = cRaw_file_stream;
}
return (I);
}
CRaw *RawOpenAppend(PyMOLGlobals * G, char *fname)
{
int target = 0x04030201;
int ok = true;
OOAlloc(G, CRaw);
I->bufVLA = NULL;
I->G = G;
I->f = fopen(fname, "wba");
if(!I->f) {
ok = false;
} else {
if(!ftell(I->f)) /* write magic if this is a new file */
fwrite(&target, 4, 1, I->f);
}
if(!ok) {
if(I->f)
fclose(I->f);
OOFreeP(I);
PRINTFB(G, FB_Raw, FB_Errors)
"Error-RawOpenAppend: Unable to open '%s'.\n", fname ENDFB(G);
} else {
I->mode = cRaw_file_stream;
}
return (I);
}
void RawFree(CRaw * I)
{
switch (I->mode) {
case cRaw_file_stream:
if(I->f) {
fclose(I->f);
I->f = NULL;
}
break;
}
VLAFreeP(I->bufVLA);
OOFreeP(I);
}
int RawGetNext(CRaw * I, int *size, int *version)
{
PyMOLGlobals *G = I->G;
int result = cRaw_EOF;
switch (I->mode) {
case cRaw_file_stream:
if(I->f) {
if(!feof(I->f)) {
if(fread((char *) I->header, cRaw_header_size, 1, I->f) != 1) {
PRINTFD(G, FB_Raw)
" RawGetNextType-Debug: Couldn't read header.\n" ENDFD;
} else {
if(I->swap) {
swap_bytes(I->header);
swap_bytes(I->header + 1);
swap_bytes(I->header + 2);
swap_bytes(I->header + 3);
}
fseek(I->f, -cRaw_header_size, SEEK_CUR);
*size = I->header[0];
result = I->header[1];
*version = I->header[2];
}
}
}
}
return (result);
}
int RawReadSkip(CRaw * I)
{
PyMOLGlobals *G = I->G;
int result = false;
switch (I->mode) {
case cRaw_file_stream:
if(I->f) {
if(!feof(I->f)) {
if(fread((char *) I->header, cRaw_header_size, 1, I->f) != 1) {
PRINTFB(G, FB_Raw, FB_Errors)
"Error-Raw: Error reading header.\n" ENDFB(G);
} else {
if(I->swap) {
swap_bytes(I->header);
swap_bytes(I->header + 1);
swap_bytes(I->header + 2);
swap_bytes(I->header + 3);
}
fseek(I->f, I->header[0], SEEK_CUR);
result = true;
}
}
}
break;
}
return (result);
}
char *RawRead(CRaw * I, int *type, unsigned int *size, int *serial)
{
PyMOLGlobals *G = I->G;
char *result = NULL;
switch (I->mode) {
case cRaw_file_stream:
if(I->f) {
if(!feof(I->f)) {
if(fread((char *) I->header, cRaw_header_size, 1, I->f) != 1) {
PRINTFB(G, FB_Raw, FB_Errors)
"Error-Raw: Error reading header.\n" ENDFB(G);
} else {
if(I->swap) {
swap_bytes(I->header);
swap_bytes(I->header + 1);
swap_bytes(I->header + 2);
swap_bytes(I->header + 3);
}
VLACheck(I->bufVLA, char, I->header[0]);
if(fread(I->bufVLA, I->header[0], 1, I->f) == 1) {
result = I->bufVLA;
*size = I->header[0];
*type = I->header[1]; /* record type */
*serial = I->header[3];
} else {
PRINTFB(G, FB_Raw, FB_Errors)
"Error-RawRead: Data read error.\n" ENDFB(G);
}
}
} else {
*type = cRaw_EOF;
}
}
break;
}
return (result);
}
char *RawReadPtr(CRaw * I, int type, int *size)
{
PyMOLGlobals *G = I->G;
char *result = NULL;
switch (I->mode) {
case cRaw_file_stream:
if(I->f) {
if(!feof(I->f)) {
if(fread((char *) I->header, cRaw_header_size, 1, I->f) != 1) {
PRINTFB(G, FB_Raw, FB_Errors)
"Error-Raw: Error reading header.\n" ENDFB(G);
} else {
if(I->swap) {
swap_bytes(I->header);
swap_bytes(I->header + 1);
swap_bytes(I->header + 2);
swap_bytes(I->header + 3);
}
if((I->header[1]) != type) {
fseek(I->f, -cRaw_header_size, SEEK_CUR);
PRINTFD(G, FB_Raw)
" RawReadPtr-Debug: Type mismatch.\n" ENDFD;
} else {
result = (char*) mmalloc(I->header[0]);
if(fread(result, I->header[0], 1, I->f) != 1) {
FreeP(result);
PRINTFB(G, FB_Raw, FB_Errors)
"Error-RawReadVLA: Data read error.\n" ENDFB(G);
} else {
*size = I->header[0];
}
}
}
}
}
break;
}
return (result);
}
char *RawReadVLA(CRaw * I, int type, unsigned int rec_size, int grow_factor,
int auto_zero)
{
PyMOLGlobals *G = I->G;
char *result = NULL;
switch (I->mode) {
case cRaw_file_stream:
if(I->f) {
if(!feof(I->f)) {
if(fread((char *) I->header, cRaw_header_size, 1, I->f) != 1) {
PRINTFB(G, FB_Raw, FB_Errors)
"Error-Raw: Error reading header.\n" ENDFB(G);
} else {
if(I->swap) {
swap_bytes(I->header);
swap_bytes(I->header + 1);
swap_bytes(I->header + 2);
swap_bytes(I->header + 3);
}
if((I->header[1]) != type) {
fseek(I->f, -cRaw_header_size, SEEK_CUR);
PRINTFD(G, FB_Raw)
" RawReadVLA-Debug: Type mismatch %d != %d.\n", I->header[1], type ENDFD;
} else {
result = (char*)
VLAMalloc((I->header[0] / rec_size), rec_size, grow_factor, auto_zero);
if(fread(result, I->header[0], 1, I->f) != 1) {
VLAFreeP(result);
PRINTFB(G, FB_Raw, FB_Errors)
"Error-RawReadVLA: Data read error.\n" ENDFB(G);
} else {
result = (char *) VLASetSize(result, I->header[0] / rec_size);
}
}
}
}
}
break;
}
return (result);
}
int RawReadInto(CRaw * I, int type, unsigned int size, char *buffer)
{
PyMOLGlobals *G = I->G;
int ok = false;
switch (I->mode) {
case cRaw_file_stream:
if(I->f) {
if(!feof(I->f)) {
if(fread((char *) I->header, cRaw_header_size, 1, I->f) != 1) {
PRINTFB(G, FB_Raw, FB_Errors)
"Error-RawReadInfo: Error reading header.\n" ENDFB(G);
} else {
if(I->swap) {
swap_bytes(I->header);
swap_bytes(I->header + 1);
swap_bytes(I->header + 2);
swap_bytes(I->header + 3);
}
if((I->header[1]) != type) {
fseek(I->f, -cRaw_header_size, SEEK_CUR);
PRINTFD(G, FB_Raw)
" RawReadPtr-Debug: Type mismatch.\n" ENDFD;
} else if(I->header[0] != (signed) size) {
PRINTFB(G, FB_Raw, FB_Errors)
"Error-RawReadInfo: Size mismatch %d!=%d (disk/RAM).\n", I->header[0], size
ENDFB(G);
} else {
if(fread(buffer, size, 1, I->f) != 1) {
PRINTFB(G, FB_Raw, FB_Errors)
"Error-RawReadInfo: Data read error.\n" ENDFB(G);
} else {
ok = true;
}
}
}
}
}
break;
}
return (ok);
}
int RawWrite(CRaw * I, int type, unsigned int size, int serial, char *bytes)
{
PyMOLGlobals *G = I->G;
int header[4];
int ok = false;
PRINTFD(G, FB_Raw)
" RawWrite-Debug: type %d size %d %p\n", type, size, bytes ENDFD;
switch (I->mode) {
case cRaw_file_stream:
if(I->f) {
header[0] = size;
header[1] = type;
header[2] = _PyMOL_VERSION_int;
header[3] = serial;
if(fwrite((char *) header, cRaw_header_size, 1, I->f) != 1) {
PRINTFB(G, FB_Raw, FB_Errors)
"Error-RawWrite: can't write header.\n" ENDFB(G);
} else if(fwrite((char *) bytes, size, 1, I->f) != 1) {
PRINTFB(G, FB_Raw, FB_Errors)
"Error-RawWrite: can't write data.\n" ENDFB(G);
} else {
ok = true;
}
}
}
PRINTFD(G, FB_Raw)
" RawWrite-Debug: leaving... %d\n", ok ENDFD;
return (ok);
}
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