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always alias MiniFFI class as Win32API

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Inori 2019-12-21 04:53:14 -05:00 • committed by Inori
parent a213b45e84
commit faef84e1ae
1 changed files with 239 additions and 235 deletions
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152
binding/miniffi-binding.cpp
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@ -1,8 +1,8 @@
// Most of the MiniFFI class was taken from Ruby 1.8's Win32API.c, // Most of the MiniFFI class was taken from Ruby 1.8's Win32API.c,
// it's just as basic but should work fine for the moment // it's just as basic but should work fine for the moment
#include <SDL.h>
#include "fake-api.h" #include "fake-api.h"
#include <SDL.h>
#include "binding-util.h" #include "binding-util.h"
@ -12,7 +12,6 @@
#define _T_INTEGER 3 #define _T_INTEGER 3
#define _T_BOOL 4 #define _T_BOOL 4
// Might need to let MiniFFI.initialize set calling convention // Might need to let MiniFFI.initialize set calling convention
// as an optional arg, this won't work with everything // as an optional arg, this won't work with everything
// Maybe libffi would help out with this // Maybe libffi would help out with this
@ -24,7 +23,10 @@
// L O N G, but variables won't get set up correctly otherwise // L O N G, but variables won't get set up correctly otherwise
// should allow for __fastcalls (macOS likes these) and whatever else // should allow for __fastcalls (macOS likes these) and whatever else
typedef PREFABI void* (*MINIFFI_FUNC)(unsigned long,unsigned long,unsigned long,unsigned long,unsigned long,unsigned long,unsigned long,unsigned long); typedef PREFABI void *(*MINIFFI_FUNC)(unsigned long, unsigned long,
unsigned long, unsigned long,
unsigned long, unsigned long,
unsigned long, unsigned long);
// MiniFFI class, also named Win32API on Windows // MiniFFI class, also named Win32API on Windows
// Uses LoadLibrary/GetProcAddress on Windows, dlopen/dlsym everywhere else // Uses LoadLibrary/GetProcAddress on Windows, dlopen/dlsym everywhere else
@ -35,11 +37,11 @@ DEF_TYPE_CUSTOMFREE(MiniFFI, SDL_UnloadObject);
DEF_ALLOCFUNC_CUSTOMFREE(MiniFFI, SDL_UnloadObject); DEF_ALLOCFUNC_CUSTOMFREE(MiniFFI, SDL_UnloadObject);
#endif #endif
static void* static void *MiniFFI_GetFunctionHandle(void *libhandle, const char *func) {
MiniFFI_GetFunctionHandle(void *libhandle, const char *func)
{
#ifdef USE_FAKEAPI #ifdef USE_FAKEAPI
#define CAPTURE(n) if (!strcmp(#n,func)) return (void*)&MKXP_##n #define CAPTURE(n) \
if (!strcmp(#n, func)) \
return (void *)&MKXP_##n
CAPTURE(GetCurrentThreadId); CAPTURE(GetCurrentThreadId);
CAPTURE(GetWindowThreadProcessId); CAPTURE(GetWindowThreadProcessId);
CAPTURE(FindWindowEx); CAPTURE(FindWindowEx);
@ -70,15 +72,15 @@ MiniFFI_GetFunctionHandle(void *libhandle, const char *func)
CAPTURE(GetUserName); CAPTURE(GetUserName);
#endif #endif
#endif #endif
if (!libhandle) return 0; if (!libhandle)
return 0;
return SDL_LoadFunction(libhandle, func); return SDL_LoadFunction(libhandle, func);
} }
// MiniFFI.new(library, function[, imports[, exports]]) // MiniFFI.new(library, function[, imports[, exports]])
// Yields itself in blocks // Yields itself in blocks
RB_METHOD(MiniFFI_initialize) RB_METHOD(MiniFFI_initialize) {
{
VALUE libname, func, imports, exports; VALUE libname, func, imports, exports;
rb_scan_args(argc, argv, "22", &libname, &func, &imports, &exports); rb_scan_args(argc, argv, "22", &libname, &func, &imports, &exports);
SafeStringValue(libname); SafeStringValue(libname);
@ -87,16 +89,14 @@ RB_METHOD(MiniFFI_initialize)
setPrivateData(self, hlib); setPrivateData(self, hlib);
void *hfunc = MiniFFI_GetFunctionHandle(hlib, RSTRING_PTR(func)); void *hfunc = MiniFFI_GetFunctionHandle(hlib, RSTRING_PTR(func));
#ifdef __WIN32__ #ifdef __WIN32__
if (hlib && !hfunc) if (hlib && !hfunc) {
{
VALUE func_a = rb_str_new3(func); VALUE func_a = rb_str_new3(func);
func_a = rb_str_cat(func_a, "A", 1); func_a = rb_str_cat(func_a, "A", 1);
hfunc = SDL_LoadFunction(hlib, RSTRING_PTR(func_a)); hfunc = SDL_LoadFunction(hlib, RSTRING_PTR(func_a));
} }
#endif #endif
if (!hfunc) if (!hfunc)
rb_raise(rb_eRuntimeError, SDL_GetError()); rb_raise(rb_eRuntimeError, "%s", SDL_GetError());
rb_iv_set(self, "_func", ULONG2NUM((unsigned long)hfunc)); rb_iv_set(self, "_func", ULONG2NUM((unsigned long)hfunc));
rb_iv_set(self, "_funcname", func); rb_iv_set(self, "_funcname", func);
@ -104,30 +104,33 @@ RB_METHOD(MiniFFI_initialize)
VALUE ary_imports = rb_ary_new(); VALUE ary_imports = rb_ary_new();
VALUE *entry; VALUE *entry;
switch (TYPE(imports)) switch (TYPE(imports)) {
{
case T_NIL: case T_NIL:
break; break;
case T_ARRAY: case T_ARRAY:
entry = RARRAY_PTR(imports); entry = RARRAY_PTR(imports);
for (int i = 0; i < RARRAY_LEN(imports); i++) for (int i = 0; i < RARRAY_LEN(imports); i++) {
{
SafeStringValue(entry[i]); SafeStringValue(entry[i]);
switch (*(char*)RSTRING_PTR(entry[i])) switch (*(char *)RSTRING_PTR(entry[i])) {
{ case 'N':
case 'N': case 'n': case 'L': case 'l': case 'n':
case 'L':
case 'l':
rb_ary_push(ary_imports, INT2FIX(_T_NUMBER)); rb_ary_push(ary_imports, INT2FIX(_T_NUMBER));
break; break;
case 'P': case 'p': case 'P':
case 'p':
rb_ary_push(ary_imports, INT2FIX(_T_POINTER)); rb_ary_push(ary_imports, INT2FIX(_T_POINTER));
break; break;
case 'I': case 'i': case 'I':
case 'i':
rb_ary_push(ary_imports, INT2FIX(_T_INTEGER)); rb_ary_push(ary_imports, INT2FIX(_T_INTEGER));
break; break;
case 'B': case 'b': case 'B':
case 'b':
rb_ary_push(ary_imports, INT2FIX(_T_BOOL)); rb_ary_push(ary_imports, INT2FIX(_T_BOOL));
break; break;
} }
@ -136,23 +139,27 @@ RB_METHOD(MiniFFI_initialize)
default: default:
SafeStringValue(imports); SafeStringValue(imports);
const char *s = RSTRING_PTR(imports); const char *s = RSTRING_PTR(imports);
for (int i = 0; i < RSTRING_LEN(imports); i++) for (int i = 0; i < RSTRING_LEN(imports); i++) {
{ switch (*s++) {
switch (*s++) case 'N':
{ case 'n':
case 'N': case 'n': case 'L': case 'l': case 'L':
case 'l':
rb_ary_push(ary_imports, INT2FIX(_T_NUMBER)); rb_ary_push(ary_imports, INT2FIX(_T_NUMBER));
break; break;
case 'P': case 'p': case 'P':
case 'p':
rb_ary_push(ary_imports, INT2FIX(_T_POINTER)); rb_ary_push(ary_imports, INT2FIX(_T_POINTER));
break; break;
case 'I': case 'i': case 'I':
case 'i':
rb_ary_push(ary_imports, INT2FIX(_T_INTEGER)); rb_ary_push(ary_imports, INT2FIX(_T_INTEGER));
break; break;
case 'B': case 'b': case 'B':
case 'b':
rb_ary_push(ary_imports, INT2FIX(_T_BOOL)); rb_ary_push(ary_imports, INT2FIX(_T_BOOL));
break; break;
} }
@ -161,47 +168,51 @@ RB_METHOD(MiniFFI_initialize)
} }
if (8 < RARRAY_LEN(ary_imports)) if (8 < RARRAY_LEN(ary_imports))
rb_raise(rb_eRuntimeError, "too many parameters: %ld\n", RARRAY_LEN(ary_imports)); rb_raise(rb_eRuntimeError, "too many parameters: %ld\n",
RARRAY_LEN(ary_imports));
rb_iv_set(self, "_imports", ary_imports); rb_iv_set(self, "_imports", ary_imports);
int ex; int ex;
if (NIL_P(exports)) if (NIL_P(exports)) {
{
ex = _T_VOID; ex = _T_VOID;
} } else {
else
{
SafeStringValue(exports); SafeStringValue(exports);
switch(*RSTRING_PTR(exports)) switch (*RSTRING_PTR(exports)) {
{ case 'V':
case 'V': case 'v': case 'v':
ex = _T_VOID; ex = _T_VOID;
break; break;
case 'N': case 'n': case 'L': case 'l': case 'N':
case 'n':
case 'L':
case 'l':
ex = _T_NUMBER; ex = _T_NUMBER;
break; break;
case 'P': case 'p': case 'P':
case 'p':
ex = _T_POINTER; ex = _T_POINTER;
break; break;
case 'I': case 'i': case 'I':
case 'i':
ex = _T_INTEGER; ex = _T_INTEGER;
break; break;
case 'B': case 'b': case 'B':
case 'b':
ex = _T_BOOL; ex = _T_BOOL;
break; break;
} }
} }
rb_iv_set(self, "_exports", INT2FIX(ex)); rb_iv_set(self, "_exports", INT2FIX(ex));
if (rb_block_given_p()) rb_yield(self); if (rb_block_given_p())
rb_yield(self);
return Qnil; return Qnil;
} }
RB_METHOD(MiniFFI_call) RB_METHOD(MiniFFI_call) {
{
struct { struct {
unsigned long params[8]; unsigned long params[8];
} param; } param;
@ -214,26 +225,19 @@ RB_METHOD(MiniFFI_call)
int items = rb_scan_args(argc, argv, "0*", &args); int items = rb_scan_args(argc, argv, "0*", &args);
int nimport = RARRAY_LEN(own_imports); int nimport = RARRAY_LEN(own_imports);
if (items != nimport) if (items != nimport)
rb_raise(rb_eRuntimeError, "wrong number of parameters: expected %d, got %d", rb_raise(rb_eRuntimeError,
nimport, items); "wrong number of parameters: expected %d, got %d", nimport, items);
for (int i = 0; i < nimport; i++) for (int i = 0; i < nimport; i++) {
{
VALUE str = rb_ary_entry(args, i); VALUE str = rb_ary_entry(args, i);
unsigned long lParam = 0; unsigned long lParam = 0;
switch(FIX2INT(rb_ary_entry(own_imports, i))) switch (FIX2INT(rb_ary_entry(own_imports, i))) {
{
case _T_POINTER: case _T_POINTER:
if (NIL_P(str)) if (NIL_P(str)) {
{
lParam = 0; lParam = 0;
} } else if (FIXNUM_P(str)) {
else if (FIXNUM_P(str))
{
lParam = NUM2ULONG(str); lParam = NUM2ULONG(str);
} } else {
else
{
StringValue(str); StringValue(str);
rb_str_modify(str); rb_str_modify(str);
lParam = (unsigned long)RSTRING_PTR(str); lParam = (unsigned long)RSTRING_PTR(str);
@ -244,17 +248,21 @@ RB_METHOD(MiniFFI_call)
lParam = RTEST(rb_ary_entry(args, i)); lParam = RTEST(rb_ary_entry(args, i));
break; break;
case _T_NUMBER: case _T_INTEGER: default: case _T_NUMBER:
case _T_INTEGER:
default:
lParam = NUM2ULONG(rb_ary_entry(args, i)); lParam = NUM2ULONG(rb_ary_entry(args, i));
break; break;
} }
params[i] = lParam; params[i] = lParam;
} }
unsigned long ret = (unsigned long)ApiFunction(params[0],params[1],params[2],params[3],params[4],params[5],params[6],params[7]); unsigned long ret =
(unsigned long)ApiFunction(params[0], params[1], params[2], params[3],
params[4], params[5], params[6], params[7]);
switch (FIX2INT(own_exports)) switch (FIX2INT(own_exports)) {
{ case _T_NUMBER:
case _T_NUMBER: case _T_INTEGER: case _T_INTEGER:
return ULONG2NUM(ret); return ULONG2NUM(ret);
case _T_POINTER: case _T_POINTER:
@ -263,15 +271,13 @@ RB_METHOD(MiniFFI_call)
case _T_BOOL: case _T_BOOL:
return rb_bool_new(ret); return rb_bool_new(ret);
case _T_VOID: default: case _T_VOID:
default:
return ULONG2NUM(0); return ULONG2NUM(0);
} }
} }
void MiniFFIBindingInit() {
void
MiniFFIBindingInit()
{
VALUE cMiniFFI = rb_define_class("MiniFFI", rb_cObject); VALUE cMiniFFI = rb_define_class("MiniFFI", rb_cObject);
#ifndef OLD_RUBY #ifndef OLD_RUBY
rb_define_alloc_func(cMiniFFI, classAllocate<&MiniFFIType>); rb_define_alloc_func(cMiniFFI, classAllocate<&MiniFFIType>);
@ -282,7 +288,5 @@ MiniFFIBindingInit()
_rb_define_method(cMiniFFI, "call", MiniFFI_call); _rb_define_method(cMiniFFI, "call", MiniFFI_call);
rb_define_alias(cMiniFFI, "Call", "call"); rb_define_alias(cMiniFFI, "Call", "call");
#if defined(__WIN32__) || defined(USE_FAKEAPI)
rb_define_const(rb_cObject, "Win32API", cMiniFFI); rb_define_const(rb_cObject, "Win32API", cMiniFFI);
#endif
} }