forked from Mirrors/wine-wine
348 lines
9.7 KiB
C
348 lines
9.7 KiB
C
/*
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* Copyright 2011 Jacek Caban for CodeWeavers
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include "config.h"
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#include <stdarg.h>
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#define COBJMACROS
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#include "windef.h"
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#include "winbase.h"
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#include "winuser.h"
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#include "ole2.h"
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#include "wine/asm.h"
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#include "wine/debug.h"
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#include "mshtml_private.h"
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WINE_DEFAULT_DEBUG_CHANNEL(mshtml);
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/*
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* This object wraps any unrecognized interface overriding its IUnknown methods, allowing
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* us to return external interface from our QI implementation preserving COM rules.
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* This can't be done right and it seems to be broken by design.
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*/
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typedef struct {
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IUnknown IUnknown_iface;
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IUnknown *iface;
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IUnknown *ref_unk;
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LONG ref;
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} iface_wrapper_t;
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static inline iface_wrapper_t *impl_from_IUnknown(IUnknown *iface)
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{
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return CONTAINING_RECORD(iface, iface_wrapper_t, IUnknown_iface);
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}
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static HRESULT WINAPI wrapper_QueryInterface(IUnknown *iface, REFIID riid, void **ppv)
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{
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iface_wrapper_t *This = impl_from_IUnknown(iface);
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TRACE("(%p)->(%s %p)\n", This, debugstr_mshtml_guid(riid), ppv);
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return IUnknown_QueryInterface(This->ref_unk, riid, ppv);
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}
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static ULONG WINAPI wrapper_AddRef(IUnknown *iface)
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{
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iface_wrapper_t *This = impl_from_IUnknown(iface);
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LONG ref = InterlockedIncrement(&This->ref);
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TRACE("(%p) ref=%d\n", This, ref);
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return ref;
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}
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static ULONG WINAPI wrapper_Release(IUnknown *iface)
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{
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iface_wrapper_t *This = impl_from_IUnknown(iface);
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LONG ref = InterlockedDecrement(&This->ref);
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TRACE("(%p) ref=%d\n", This, ref);
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if(!ref) {
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IUnknown_Release(This->iface);
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IUnknown_Release(This->ref_unk);
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heap_free(This);
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}
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return ref;
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}
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#ifdef __i386__
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#define DEFINE_WRAPPER_FUNC(n, off, x) \
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HRESULT wrapper_func_##n(IUnknown*); \
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__ASM_GLOBAL_FUNC(wrapper_func_##n, \
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"movl 4(%esp), %eax\n\t" \
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"movl 4(%eax), %eax\n\t" \
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"movl %eax, 4(%esp)\n\t" \
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"movl 0(%eax), %eax\n\t" \
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"jmp *" #off "(%eax)\n\t")
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#elif defined(__x86_64__)
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#define DEFINE_WRAPPER_FUNC(n, x, off) \
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HRESULT WINAPI wrapper_func_##n(IUnknown*); \
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__ASM_GLOBAL_FUNC(wrapper_func_##n, \
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"movq 8(%rcx), %rcx\n\t" \
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"movq 0(%rcx), %rax\n\t" \
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"jmp *" #off "(%rax)\n\t")
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#else
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#define DEFINE_WRAPPER_FUNC(n, x, off) \
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static HRESULT WINAPI wrapper_func_##n(IUnknown *iface) { \
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ERR("Not implemented for this architecture\n"); \
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return E_NOTIMPL; \
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}
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#endif
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/* DEFINE_WRAPPER_FUNC takes 3 arguments: index in vtbl, 32-bit offset in vtbl and 64-bit offset in vtbl */
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DEFINE_WRAPPER_FUNC(3, 12, 24)
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DEFINE_WRAPPER_FUNC(4, 16, 32)
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DEFINE_WRAPPER_FUNC(5, 20, 40)
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DEFINE_WRAPPER_FUNC(6, 24, 48)
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DEFINE_WRAPPER_FUNC(7, 28, 56)
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DEFINE_WRAPPER_FUNC(8, 32, 64)
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DEFINE_WRAPPER_FUNC(9, 36, 72)
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DEFINE_WRAPPER_FUNC(10, 40, 80)
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DEFINE_WRAPPER_FUNC(11, 44, 88)
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DEFINE_WRAPPER_FUNC(12, 48, 96)
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DEFINE_WRAPPER_FUNC(13, 52, 104)
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DEFINE_WRAPPER_FUNC(14, 56, 112)
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DEFINE_WRAPPER_FUNC(15, 60, 120)
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DEFINE_WRAPPER_FUNC(16, 64, 128)
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DEFINE_WRAPPER_FUNC(17, 68, 136)
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DEFINE_WRAPPER_FUNC(18, 72, 144)
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DEFINE_WRAPPER_FUNC(19, 76, 152)
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DEFINE_WRAPPER_FUNC(20, 80, 160)
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DEFINE_WRAPPER_FUNC(21, 84, 168)
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DEFINE_WRAPPER_FUNC(22, 88, 176)
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DEFINE_WRAPPER_FUNC(23, 92, 184)
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DEFINE_WRAPPER_FUNC(24, 96, 192)
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DEFINE_WRAPPER_FUNC(25, 100, 200)
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DEFINE_WRAPPER_FUNC(26, 104, 208)
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DEFINE_WRAPPER_FUNC(27, 108, 216)
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DEFINE_WRAPPER_FUNC(28, 112, 224)
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DEFINE_WRAPPER_FUNC(29, 116, 232)
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DEFINE_WRAPPER_FUNC(30, 120, 240)
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DEFINE_WRAPPER_FUNC(31, 124, 248)
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DEFINE_WRAPPER_FUNC(32, 128, 256)
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DEFINE_WRAPPER_FUNC(33, 132, 264)
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DEFINE_WRAPPER_FUNC(34, 136, 272)
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DEFINE_WRAPPER_FUNC(35, 140, 280)
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DEFINE_WRAPPER_FUNC(36, 144, 288)
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DEFINE_WRAPPER_FUNC(37, 148, 296)
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DEFINE_WRAPPER_FUNC(38, 152, 304)
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DEFINE_WRAPPER_FUNC(39, 156, 312)
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DEFINE_WRAPPER_FUNC(40, 160, 320)
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DEFINE_WRAPPER_FUNC(41, 164, 328)
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DEFINE_WRAPPER_FUNC(42, 168, 336)
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DEFINE_WRAPPER_FUNC(43, 172, 344)
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DEFINE_WRAPPER_FUNC(44, 176, 352)
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DEFINE_WRAPPER_FUNC(45, 180, 360)
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DEFINE_WRAPPER_FUNC(46, 184, 368)
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DEFINE_WRAPPER_FUNC(47, 188, 376)
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DEFINE_WRAPPER_FUNC(48, 192, 384)
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DEFINE_WRAPPER_FUNC(49, 196, 392)
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DEFINE_WRAPPER_FUNC(50, 200, 400)
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DEFINE_WRAPPER_FUNC(51, 204, 408)
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DEFINE_WRAPPER_FUNC(52, 208, 416)
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DEFINE_WRAPPER_FUNC(53, 212, 424)
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DEFINE_WRAPPER_FUNC(54, 216, 432)
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DEFINE_WRAPPER_FUNC(55, 220, 440)
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DEFINE_WRAPPER_FUNC(56, 224, 448)
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DEFINE_WRAPPER_FUNC(57, 228, 456)
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DEFINE_WRAPPER_FUNC(58, 232, 464)
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DEFINE_WRAPPER_FUNC(59, 236, 472)
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DEFINE_WRAPPER_FUNC(60, 240, 480)
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DEFINE_WRAPPER_FUNC(61, 244, 488)
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DEFINE_WRAPPER_FUNC(62, 248, 496)
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DEFINE_WRAPPER_FUNC(63, 252, 504)
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DEFINE_WRAPPER_FUNC(64, 256, 512)
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DEFINE_WRAPPER_FUNC(65, 260, 520)
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DEFINE_WRAPPER_FUNC(66, 264, 528)
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DEFINE_WRAPPER_FUNC(67, 268, 536)
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DEFINE_WRAPPER_FUNC(68, 272, 544)
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DEFINE_WRAPPER_FUNC(69, 276, 552)
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DEFINE_WRAPPER_FUNC(70, 280, 560)
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DEFINE_WRAPPER_FUNC(71, 284, 568)
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DEFINE_WRAPPER_FUNC(72, 288, 576)
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DEFINE_WRAPPER_FUNC(73, 292, 584)
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DEFINE_WRAPPER_FUNC(74, 296, 592)
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DEFINE_WRAPPER_FUNC(75, 300, 600)
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DEFINE_WRAPPER_FUNC(76, 304, 608)
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DEFINE_WRAPPER_FUNC(77, 308, 616)
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DEFINE_WRAPPER_FUNC(78, 312, 624)
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DEFINE_WRAPPER_FUNC(79, 316, 632)
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DEFINE_WRAPPER_FUNC(80, 320, 640)
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DEFINE_WRAPPER_FUNC(81, 324, 648)
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DEFINE_WRAPPER_FUNC(82, 328, 656)
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DEFINE_WRAPPER_FUNC(83, 332, 664)
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DEFINE_WRAPPER_FUNC(84, 336, 672)
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DEFINE_WRAPPER_FUNC(85, 340, 680)
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DEFINE_WRAPPER_FUNC(86, 344, 688)
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DEFINE_WRAPPER_FUNC(87, 348, 696)
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DEFINE_WRAPPER_FUNC(88, 352, 704)
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DEFINE_WRAPPER_FUNC(89, 356, 712)
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DEFINE_WRAPPER_FUNC(90, 360, 720)
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DEFINE_WRAPPER_FUNC(91, 364, 728)
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DEFINE_WRAPPER_FUNC(92, 368, 736)
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DEFINE_WRAPPER_FUNC(93, 372, 744)
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DEFINE_WRAPPER_FUNC(94, 376, 752)
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DEFINE_WRAPPER_FUNC(95, 380, 760)
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DEFINE_WRAPPER_FUNC(96, 384, 768)
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DEFINE_WRAPPER_FUNC(97, 388, 776)
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DEFINE_WRAPPER_FUNC(98, 392, 784)
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DEFINE_WRAPPER_FUNC(99, 396, 792)
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/* The size was found by testing when calls start crashing. It looks like MS wraps up to 100 functions. */
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static const struct {
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IUnknownVtbl unk_vtbl;
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const void *wrappers[97];
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} wrapper_vtbl = {
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{
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wrapper_QueryInterface,
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wrapper_AddRef,
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wrapper_Release
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}, {
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wrapper_func_3,
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wrapper_func_4,
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wrapper_func_5,
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wrapper_func_6,
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wrapper_func_7,
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wrapper_func_8,
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wrapper_func_9,
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wrapper_func_10,
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wrapper_func_11,
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wrapper_func_12,
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wrapper_func_13,
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wrapper_func_14,
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wrapper_func_15,
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wrapper_func_16,
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wrapper_func_17,
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wrapper_func_18,
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wrapper_func_19,
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wrapper_func_20,
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wrapper_func_21,
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wrapper_func_22,
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wrapper_func_23,
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wrapper_func_24,
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wrapper_func_25,
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wrapper_func_26,
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wrapper_func_27,
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wrapper_func_28,
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wrapper_func_29,
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wrapper_func_30,
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wrapper_func_31,
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wrapper_func_32,
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wrapper_func_33,
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wrapper_func_34,
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wrapper_func_35,
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wrapper_func_36,
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wrapper_func_37,
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wrapper_func_38,
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wrapper_func_39,
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wrapper_func_40,
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wrapper_func_41,
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wrapper_func_42,
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wrapper_func_43,
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wrapper_func_44,
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wrapper_func_45,
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wrapper_func_46,
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wrapper_func_47,
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wrapper_func_48,
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wrapper_func_49,
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wrapper_func_50,
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wrapper_func_51,
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wrapper_func_52,
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wrapper_func_53,
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wrapper_func_54,
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wrapper_func_55,
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wrapper_func_56,
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wrapper_func_57,
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wrapper_func_58,
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wrapper_func_59,
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wrapper_func_60,
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wrapper_func_61,
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wrapper_func_62,
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wrapper_func_63,
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wrapper_func_64,
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wrapper_func_65,
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wrapper_func_66,
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wrapper_func_67,
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wrapper_func_68,
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wrapper_func_69,
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wrapper_func_70,
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wrapper_func_71,
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wrapper_func_72,
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wrapper_func_73,
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wrapper_func_74,
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wrapper_func_75,
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wrapper_func_76,
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wrapper_func_77,
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wrapper_func_78,
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wrapper_func_79,
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wrapper_func_80,
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wrapper_func_81,
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wrapper_func_82,
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wrapper_func_83,
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wrapper_func_84,
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wrapper_func_85,
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wrapper_func_86,
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wrapper_func_87,
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wrapper_func_88,
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wrapper_func_89,
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wrapper_func_90,
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wrapper_func_91,
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wrapper_func_92,
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wrapper_func_93,
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wrapper_func_94,
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wrapper_func_95,
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wrapper_func_96,
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wrapper_func_97,
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wrapper_func_98,
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wrapper_func_99
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}
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};
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HRESULT wrap_iface(IUnknown *iface, IUnknown *ref_unk, IUnknown **ret)
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{
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iface_wrapper_t *wrapper;
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wrapper = heap_alloc(sizeof(*wrapper));
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if(!wrapper)
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return E_OUTOFMEMORY;
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wrapper->IUnknown_iface.lpVtbl = &wrapper_vtbl.unk_vtbl;
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wrapper->ref = 1;
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IUnknown_AddRef(iface);
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wrapper->iface = iface;
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IUnknown_AddRef(ref_unk);
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wrapper->ref_unk = ref_unk;
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*ret = &wrapper->IUnknown_iface;
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return S_OK;
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}
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