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Alex Yatskov 2019-01-03 19:38:41 -08:00
parent ad7067101a
commit 3e865519af
7 changed files with 40 additions and 46 deletions
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7
formats/mpq/build.go
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@ -1,7 +0,0 @@
package mpq
// #cgo windows CFLAGS: -D_MPQ_WINDOWS
// #cgo windows LDFLAGS: -Lstormlib -lstorm -lwininet -lz -lbz2 -lstdc++
// #cgo linux CFLAGS: -D_MPQ_LINUX
// #cgo linux LDFLAGS: -L./stormlib/ -lstorm -lz -lbz2 -lstdc++
import "C"

36
formats/mpq/mpq.go
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@ -1,34 +1,20 @@
package mpq package mpq
// #define DWORD unsigned int // #cgo windows CFLAGS: -D_MPQ_WINDOWS
// #define LPDWORD unsigned int * // #cgo windows LDFLAGS: -Lstormlib -lstorm -lwininet -lz -lbz2 -lstdc++
// #define LPOVERLAPPED void * // #cgo linux CFLAGS: -D_MPQ_LINUX
// #define TCHAR char // #cgo linux LDFLAGS: -L./stormlib/ -lstorm -lz -lbz2 -lstdc++
// #define HANDLE void *
// #define bool unsigned char
// #define LONG int
//
// #include <stdlib.h>
// #ifdef _MPQ_WINDOWS // #ifdef _MPQ_WINDOWS
// #include <windows.h> // #include "native_windows.h"
// #endif // #endif
// #ifdef _MPQ_LINUX // #ifdef _MPQ_LINUX
// #define WINAPI // #include "native_linux.h"
// DWORD GetLastError();
// #endif // #endif
//
// bool WINAPI SFileOpenArchive(const TCHAR * szMpqName, DWORD dwPriority, DWORD dwFlags, HANDLE * phMpq);
// bool WINAPI SFileCloseArchive(HANDLE hMpq);
// bool WINAPI SFileOpenFileEx(HANDLE hMpq, const char * szFileName, DWORD dwSearchScope, HANDLE * phFile);
// DWORD WINAPI SFileSetFilePointer(HANDLE hFile, LONG lFilePos, LONG * plFilePosHigh, DWORD dwMoveMethod);
// bool WINAPI SFileReadFile(HANDLE hFile, void * lpBuffer, DWORD dwToRead, LPDWORD pdwRead, LPOVERLAPPED lpOverlapped);
// bool WINAPI SFileCloseFile(HANDLE hFile);
import "C" import "C"
import ( import (
"bytes" "bytes"
"fmt" "fmt"
"io" "io"
"math"
"os" "os"
"strings" "strings"
"unsafe" "unsafe"
@ -71,7 +57,7 @@ func (f *file) Read(data []byte) (int, error) {
var bytesRead int var bytesRead int
if result := C.SFileReadFile(f.handle, unsafe.Pointer(&data[0]), C.uint(len(data)), (*C.uint)(unsafe.Pointer(&bytesRead)), nil); result == 0 { if result := C.SFileReadFile(f.handle, unsafe.Pointer(&data[0]), C.uint(len(data)), (*C.uint)(unsafe.Pointer(&bytesRead)), nil); result == 0 {
lastError := getLastError() lastError := getLastError()
if lastError == sysEOF { // ERROR_HANDLE_EOF if lastError == C.ERROR_HANDLE_EOF {
return bytesRead, io.EOF return bytesRead, io.EOF
} }
@ -85,15 +71,15 @@ func (f *file) Seek(offset int64, whence int) (int64, error) {
var method uint var method uint
switch whence { switch whence {
case io.SeekStart: case io.SeekStart:
method = 0 // FILE_BEGIN method = C.FILE_BEGIN
case io.SeekCurrent: case io.SeekCurrent:
method = 1 // FILE_CURRENT method = C.FILE_CURRENT
case io.SeekEnd: case io.SeekEnd:
method = 2 // FILE_END method = C.FILE_END
} }
result := C.SFileSetFilePointer(f.handle, C.int(offset), nil, C.uint(method)) result := C.SFileSetFilePointer(f.handle, C.int(offset), nil, C.uint(method))
if result == math.MaxUint32 { // SFILE_INVALID_SIZE if result == C.SFILE_INVALID_SIZE {
return 0, fmt.Errorf("failed to set file pointer (%d)", getLastError()) return 0, fmt.Errorf("failed to set file pointer (%d)", getLastError())
} }

7
formats/mpq/mpq_linux.go
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@ -1,7 +0,0 @@
// +build linux
package mpq
const (
sysEOF = 1002
)

7
formats/mpq/mpq_windows.go
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@ -1,7 +0,0 @@
// +build windows
package mpq
const (
sysEOF = 38
)

11
formats/mpq/native.h Normal file
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@ -0,0 +1,11 @@
#define FILE_BEGIN 0
#define FILE_CURRENT 1
#define FILE_END 2
#define SFILE_INVALID_SIZE 0xffffffff
bool WINAPI SFileOpenArchive(const TCHAR * szMpqName, DWORD dwPriority, DWORD dwFlags, HANDLE * phMpq);
bool WINAPI SFileCloseArchive(HANDLE hMpq);
bool WINAPI SFileOpenFileEx(HANDLE hMpq, const char * szFileName, DWORD dwSearchScope, HANDLE * phFile);
DWORD WINAPI SFileSetFilePointer(HANDLE hFile, LONG lFilePos, LONG * plFilePosHigh, DWORD dwMoveMethod);
bool WINAPI SFileReadFile(HANDLE hFile, void * lpBuffer, DWORD dwToRead, LPDWORD pdwRead, LPOVERLAPPED lpOverlapped);
bool WINAPI SFileCloseFile(HANDLE hFile);

14
formats/mpq/native_linux.h Normal file
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@ -0,0 +1,14 @@
#define DWORD unsigned int
#define LPDWORD unsigned int *
#define LPOVERLAPPED void *
#define TCHAR char
#define HANDLE void *
#define bool unsigned char
#define LONG int
#define ERROR_HANDLE_EOF 1002
#define WINAPI
DWORD GetLastError();
#include <stdlib.h>
#include "native.h"

4
formats/mpq/native_windows.h Normal file
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@ -0,0 +1,4 @@
#define ERROR_HANDLE_EOF 1002
#include <windows.h>
#include "native.h"