/*
 * IDirect3DSurface8 implementation
 *
 * Copyright 2002 Jason Edmeades
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include "windef.h"
#include "winbase.h"
#include "winuser.h"
#include "wingdi.h"
#include "wine/debug.h"

#include "d3d8_private.h"

WINE_DEFAULT_DEBUG_CHANNEL(d3d);

/* IDirect3DVolume IUnknown parts follow: */
HRESULT WINAPI IDirect3DSurface8Impl_QueryInterface(LPDIRECT3DSURFACE8 iface,REFIID riid,LPVOID *ppobj)
{
    ICOM_THIS(IDirect3DSurface8Impl,iface);

    if (IsEqualGUID(riid, &IID_IUnknown)
        || IsEqualGUID(riid, &IID_IDirect3DSurface8)) {
        IDirect3DSurface8Impl_AddRef(iface);
        *ppobj = This;
        return D3D_OK;
    }

    WARN("(%p)->(%s,%p),not found\n",This,debugstr_guid(riid),ppobj);
    return E_NOINTERFACE;
}

ULONG WINAPI IDirect3DSurface8Impl_AddRef(LPDIRECT3DSURFACE8 iface) {
    ICOM_THIS(IDirect3DSurface8Impl,iface);
    TRACE("(%p) : AddRef from %ld\n", This, This->ref);
    return ++(This->ref);
}

ULONG WINAPI IDirect3DSurface8Impl_Release(LPDIRECT3DSURFACE8 iface) {
    ICOM_THIS(IDirect3DSurface8Impl,iface);
    ULONG ref = --This->ref;
    TRACE("(%p) : ReleaseRef to %ld\n", This, This->ref);
    if (ref == 0) {
        HeapFree(GetProcessHeap(), 0, This->allocatedMemory);
        HeapFree(GetProcessHeap(), 0, This);
    }
    return ref;
}

/* IDirect3DSurface8: */
HRESULT WINAPI IDirect3DSurface8Impl_GetDevice(LPDIRECT3DSURFACE8 iface, IDirect3DDevice8** ppDevice) {
    ICOM_THIS(IDirect3DSurface8Impl,iface);
    TRACE("(%p) : returning %p\n", This, This->Device);
    *ppDevice = (LPDIRECT3DDEVICE8) This->Device;
    /**
     * Note  Calling this method will increase the internal reference count 
     * on the IDirect3DDevice8 interface. 
     */
    IDirect3DDevice8Impl_AddRef(*ppDevice);
    return D3D_OK;
}
HRESULT WINAPI IDirect3DSurface8Impl_SetPrivateData(LPDIRECT3DSURFACE8 iface, REFGUID refguid, CONST void* pData, DWORD SizeOfData, DWORD Flags) {
    ICOM_THIS(IDirect3DSurface8Impl,iface);
    FIXME("(%p) : stub\n", This);    return D3D_OK;
}
HRESULT WINAPI IDirect3DSurface8Impl_GetPrivateData(LPDIRECT3DSURFACE8 iface, REFGUID refguid, void* pData, DWORD* pSizeOfData) {
    ICOM_THIS(IDirect3DSurface8Impl,iface);
    FIXME("(%p) : stub\n", This);    return D3D_OK;
}
HRESULT WINAPI IDirect3DSurface8Impl_FreePrivateData(LPDIRECT3DSURFACE8 iface, REFGUID refguid) {
    ICOM_THIS(IDirect3DSurface8Impl,iface);
    FIXME("(%p) : stub\n", This);    return D3D_OK;
}
HRESULT WINAPI IDirect3DSurface8Impl_GetContainer(LPDIRECT3DSURFACE8 iface, REFIID riid, void** ppContainer) {
    ICOM_THIS(IDirect3DSurface8Impl,iface);
    HRESULT res;
    /*
    TRACE("(%p) : returning %p\n", This, This->Container);
    *ppContainer = This->Container;
    return D3D_OK;
    */
    res = IUnknown_QueryInterface(This->Container, riid, ppContainer);
    if (E_NOINTERFACE == res) { 
      /**
       * If the surface is created using CreateImageSurface, CreateRenderTarget, 
       * or CreateDepthStencilSurface, the surface is considered stand alone. In this case, 
       * GetContainer will return the Direct3D device used to create the surface. 
       */
      res = IUnknown_QueryInterface(This->Container, &IID_IDirect3DDevice8, ppContainer);
    }
    TRACE("(%p) : returning %p\n", This, *ppContainer);
    return res;
}
HRESULT WINAPI IDirect3DSurface8Impl_GetDesc(LPDIRECT3DSURFACE8 iface, D3DSURFACE_DESC *pDesc) {
    ICOM_THIS(IDirect3DSurface8Impl,iface);

    TRACE("(%p) : copying into %p\n", This, pDesc);
    memcpy(pDesc, &This->myDesc, sizeof(D3DSURFACE_DESC));
    return D3D_OK;
}
HRESULT WINAPI IDirect3DSurface8Impl_LockRect(LPDIRECT3DSURFACE8 iface, D3DLOCKED_RECT* pLockedRect, CONST RECT* pRect,DWORD Flags) {
    ICOM_THIS(IDirect3DSurface8Impl,iface);
    /* fixme: should we really lock as such? */
    TRACE("(%p) : rect=%p, output prect=%p, allMem=%p\n", This, pRect, pLockedRect, This->allocatedMemory);

    pLockedRect->Pitch = This->bytesPerPixel * This->myDesc.Width;  /* Bytes / row */
    if (!pRect) {
        pLockedRect->pBits = This->allocatedMemory;
    } else {
        TRACE("Lock Rect (%p) = l %ld, t %ld, r %ld, b %ld\n", pRect, pRect->left, pRect->top, pRect->right, pRect->bottom);
        pLockedRect->pBits = This->allocatedMemory + (pLockedRect->Pitch * pRect->top) + (pRect->left * This->bytesPerPixel);
    }
    TRACE("returning pBits=%p, pitch=%d\n", pLockedRect->pBits, pLockedRect->Pitch);
    return D3D_OK;
}
HRESULT WINAPI IDirect3DSurface8Impl_UnlockRect(LPDIRECT3DSURFACE8 iface) {
    ICOM_THIS(IDirect3DSurface8Impl,iface);
    TRACE("(%p) : stub\n", This);
    if (This->Container) {
        IDirect3DBaseTexture8 *cont = (IDirect3DBaseTexture8*) This->Container;

        /* Now setup the texture appropraitly */
        int containerType = IDirect3DBaseTexture8Impl_GetType(cont);
        if (containerType == D3DRTYPE_TEXTURE) {
            IDirect3DTexture8Impl *pTexture = (IDirect3DTexture8Impl *)cont;
            pTexture->Dirty = TRUE;
        } else if (containerType == D3DRTYPE_CUBETEXTURE) {
            IDirect3DCubeTexture8Impl *pTexture = (IDirect3DCubeTexture8Impl *)cont;
            pTexture->Dirty = TRUE;

        } else {
            FIXME("Set dirty on container type %d\n", containerType);
        }
    }
    return D3D_OK;
}


ICOM_VTABLE(IDirect3DSurface8) Direct3DSurface8_Vtbl =
{
    ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
    IDirect3DSurface8Impl_QueryInterface,
    IDirect3DSurface8Impl_AddRef,
    IDirect3DSurface8Impl_Release,
    IDirect3DSurface8Impl_GetDevice,
    IDirect3DSurface8Impl_SetPrivateData,
    IDirect3DSurface8Impl_GetPrivateData,
    IDirect3DSurface8Impl_FreePrivateData,
    IDirect3DSurface8Impl_GetContainer,
    IDirect3DSurface8Impl_GetDesc,
    IDirect3DSurface8Impl_LockRect,
    IDirect3DSurface8Impl_UnlockRect,
};