/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is mozilla.org code.
 *
 * The Initial Developer of the Original Code is
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 1998
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   ZHANG Le    <r0bertz@gentoo.org>
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either of the GNU General Public License Version 2 or later (the "GPL"),
 * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

/* Platform specific code to invoke XPCOM methods on native objects */

#include "xptcprivate.h"

#if (_MIPS_SIM != _ABIN32)
#error "This code is for MIPS N32 only"
#endif

extern "C" uint32
invoke_count_words(PRUint32 paramCount, nsXPTCVariant* s)
{
    return paramCount;
}

extern "C" void
invoke_copy_to_stack(PRUint64* d, PRUint32 paramCount,
                     nsXPTCVariant* s, PRUint64 *regs)
{
#define N_ARG_REGS       7       /* 8 regs minus 1 for "this" ptr */

    for (PRUint32 i = 0; i < paramCount; i++, s++)
    {
        if (s->IsPtrData()) {
            if (i < N_ARG_REGS)
                regs[i] = (PRUint64)s->ptr;
            else
                *d++ = (PRUint64)s->ptr;
            continue;
        }
        switch (s->type) {
        //
        // signed types first
        //
        case nsXPTType::T_I8:
            if (i < N_ARG_REGS)
                ((PRInt64*)regs)[i] = s->val.i8;
            else
                *d++ = s->val.i8;
            break;
        case nsXPTType::T_I16:
            if (i < N_ARG_REGS)
                ((PRInt64*)regs)[i] = s->val.i16;
            else
                *d++ = s->val.i16;
            break;
        case nsXPTType::T_I32:
            if (i < N_ARG_REGS)
                ((PRInt64*)regs)[i] = s->val.i32;
            else
                *d++ = s->val.i32;
            break;
        case nsXPTType::T_I64:
            if (i < N_ARG_REGS)
                ((PRInt64*)regs)[i] = s->val.i64;
            else
                *d++ = s->val.i64;
            break;
        //
        // unsigned types next
        //
        case nsXPTType::T_U8:
            if (i < N_ARG_REGS)
                regs[i] = s->val.u8;
            else
                *d++ = s->val.u8;
            break;
        case nsXPTType::T_U16:
            if (i < N_ARG_REGS)
                regs[i] = s->val.u16;
            else
                *d++ = s->val.u16;
            break;
        case nsXPTType::T_U32:
            if (i < N_ARG_REGS)
                regs[i] = s->val.u32;
            else
                *d++ = s->val.u32;
            break;
        case nsXPTType::T_U64:
            if (i < N_ARG_REGS)
                regs[i] = s->val.u64;
            else
                *d++ = s->val.u64;
            break;
        case nsXPTType::T_FLOAT:
            if (i < N_ARG_REGS)
                *(float*)&regs[i] = s->val.f;
            else
                *(float*)d++ = s->val.f;
            break;
        case nsXPTType::T_DOUBLE:
            if (i < N_ARG_REGS)
                *(double*)&regs[i] = s->val.d;
            else
                *(double*)d++ = s->val.d;
            break;
        case nsXPTType::T_BOOL:
            if (i < N_ARG_REGS)
                regs[i] = s->val.b;
            else
                *d++ = s->val.b;
            break;
        case nsXPTType::T_CHAR:
            if (i < N_ARG_REGS)
                regs[i] = s->val.c;
            else
                *d++ = s->val.c;
            break;
        case nsXPTType::T_WCHAR:
            if (i < N_ARG_REGS)
                regs[i] = s->val.wc;
            else
                *d++ = s->val.wc;
            break;
        default:
            // all the others are plain pointer types
            if (i < N_ARG_REGS)
                regs[i] = (PRUint64)s->val.p;
            else
               *d++ = (PRUint64)s->val.p;
            break;
        }
    }
}

extern "C" nsresult _NS_InvokeByIndex_P(nsISupports* that, PRUint32 methodIndex,
                                        PRUint32 paramCount,
                                        nsXPTCVariant* params);

EXPORT_XPCOM_API(nsresult)
NS_InvokeByIndex_P(nsISupports* that, PRUint32 methodIndex,
                   PRUint32 paramCount, nsXPTCVariant* params)
{
    return _NS_InvokeByIndex_P(that, methodIndex, paramCount, params);
}
