/*
 * IDirect3D8 implementation
 *
 * Copyright 2002-2004 Jason Edmeades
 * Copyright 2003-2004 Raphael Junqueira
 * Copyright 2004 Christian Costa
 *
 * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
 */

#include "config.h"

#include <stdarg.h>

#define NONAMELESSUNION
#define NONAMELESSSTRUCT
#include "windef.h"
#include "winbase.h"
#include "wingdi.h"
#include "winuser.h"
#include "wine/debug.h"
#include "wine/unicode.h"

#include "d3d8_private.h"

WINE_DEFAULT_DEBUG_CHANNEL(d3d8);

/* IDirect3D IUnknown parts follow: */
static HRESULT WINAPI IDirect3D8Impl_QueryInterface(LPDIRECT3D8 iface, REFIID riid,LPVOID *ppobj)
{
    IDirect3D8Impl *This = (IDirect3D8Impl *)iface;

    if (IsEqualGUID(riid, &IID_IUnknown)
        || IsEqualGUID(riid, &IID_IDirect3D8)) {
        IUnknown_AddRef(iface);
        *ppobj = This;
        return S_OK;
    }

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

static ULONG WINAPI IDirect3D8Impl_AddRef(LPDIRECT3D8 iface) {
    IDirect3D8Impl *This = (IDirect3D8Impl *)iface;
    ULONG ref = InterlockedIncrement(&This->ref);

    TRACE("(%p) : AddRef from %d\n", This, ref - 1);

    return ref;
}

static ULONG WINAPI IDirect3D8Impl_Release(LPDIRECT3D8 iface) {
    IDirect3D8Impl *This = (IDirect3D8Impl *)iface;
    ULONG ref = InterlockedDecrement(&This->ref);

    TRACE("(%p) : ReleaseRef to %d\n", This, ref);

    if (ref == 0) {
        TRACE("Releasing wined3d %p\n", This->WineD3D);
        IWineD3D_Release(This->WineD3D);
        HeapFree(GetProcessHeap(), 0, This);
    }

    return ref;
}

/* IDirect3D8 Interface follow: */
static HRESULT WINAPI IDirect3D8Impl_RegisterSoftwareDevice (LPDIRECT3D8 iface, void* pInitializeFunction) {
    IDirect3D8Impl *This = (IDirect3D8Impl *)iface;
    return IWineD3D_RegisterSoftwareDevice(This->WineD3D, pInitializeFunction);
}

static UINT WINAPI IDirect3D8Impl_GetAdapterCount (LPDIRECT3D8 iface) {
    IDirect3D8Impl *This = (IDirect3D8Impl *)iface;
    return IWineD3D_GetAdapterCount(This->WineD3D);
}

static HRESULT  WINAPI  IDirect3D8Impl_GetAdapterIdentifier       (LPDIRECT3D8 iface,
                                                            UINT Adapter, DWORD Flags, D3DADAPTER_IDENTIFIER8* pIdentifier) {
    IDirect3D8Impl *This = (IDirect3D8Impl *)iface;
    WINED3DADAPTER_IDENTIFIER adapter_id;

    /* dx8 and dx9 have different structures to be filled in, with incompatible 
       layouts so pass in pointers to the places to be filled via an internal 
       structure                                                                */
    adapter_id.Driver           = pIdentifier->Driver;
    adapter_id.Description      = pIdentifier->Description;
    adapter_id.DeviceName       = NULL; /* d3d9 only */
    adapter_id.DriverVersion    = &pIdentifier->DriverVersion;
    adapter_id.VendorId         = &pIdentifier->VendorId;
    adapter_id.DeviceId         = &pIdentifier->DeviceId;
    adapter_id.SubSysId         = &pIdentifier->SubSysId;
    adapter_id.Revision         = &pIdentifier->Revision;
    adapter_id.DeviceIdentifier = &pIdentifier->DeviceIdentifier;
    adapter_id.WHQLLevel        = &pIdentifier->WHQLLevel;

    return IWineD3D_GetAdapterIdentifier(This->WineD3D, Adapter, Flags, &adapter_id);
}

static UINT WINAPI IDirect3D8Impl_GetAdapterModeCount (LPDIRECT3D8 iface,UINT Adapter) {
    IDirect3D8Impl *This = (IDirect3D8Impl *)iface;
    return IWineD3D_GetAdapterModeCount(This->WineD3D, Adapter, 0 /* format */);
}

static HRESULT WINAPI IDirect3D8Impl_EnumAdapterModes (LPDIRECT3D8 iface, UINT Adapter, UINT Mode, D3DDISPLAYMODE* pMode) {
    IDirect3D8Impl *This = (IDirect3D8Impl *)iface;
    /* FIXME: USe a constant WINED3DFOTMAT_ANY, or something similar */
    return IWineD3D_EnumAdapterModes(This->WineD3D, Adapter, 0 /* format */, Mode, (WINED3DDISPLAYMODE *) pMode);
}

static HRESULT WINAPI IDirect3D8Impl_GetAdapterDisplayMode (LPDIRECT3D8 iface, UINT Adapter, D3DDISPLAYMODE* pMode) {
    IDirect3D8Impl *This = (IDirect3D8Impl *)iface;
    return IWineD3D_GetAdapterDisplayMode(This->WineD3D, Adapter, (WINED3DDISPLAYMODE *) pMode);
}

static HRESULT  WINAPI  IDirect3D8Impl_CheckDeviceType            (LPDIRECT3D8 iface,
                                                            UINT Adapter, D3DDEVTYPE CheckType, D3DFORMAT DisplayFormat,
                                                            D3DFORMAT BackBufferFormat, BOOL Windowed) {
    IDirect3D8Impl *This = (IDirect3D8Impl *)iface;
    return IWineD3D_CheckDeviceType(This->WineD3D, Adapter, CheckType, DisplayFormat,
                                    BackBufferFormat, Windowed);
}

static HRESULT  WINAPI  IDirect3D8Impl_CheckDeviceFormat          (LPDIRECT3D8 iface,
                                                            UINT Adapter, D3DDEVTYPE DeviceType, D3DFORMAT AdapterFormat,
                                                            DWORD Usage, D3DRESOURCETYPE RType, D3DFORMAT CheckFormat) {
    IDirect3D8Impl *This = (IDirect3D8Impl *)iface;
    return IWineD3D_CheckDeviceFormat(This->WineD3D, Adapter, DeviceType, AdapterFormat,
                                    Usage, RType, CheckFormat);
}

static HRESULT  WINAPI  IDirect3D8Impl_CheckDeviceMultiSampleType(LPDIRECT3D8 iface,
							   UINT Adapter, D3DDEVTYPE DeviceType, D3DFORMAT SurfaceFormat,
							   BOOL Windowed, D3DMULTISAMPLE_TYPE MultiSampleType) {
    IDirect3D8Impl *This = (IDirect3D8Impl *)iface;
    return IWineD3D_CheckDeviceMultiSampleType(This->WineD3D, Adapter, DeviceType, SurfaceFormat,
                                               Windowed, (WINED3DMULTISAMPLE_TYPE) MultiSampleType, NULL);
}

static HRESULT  WINAPI  IDirect3D8Impl_CheckDepthStencilMatch(LPDIRECT3D8 iface, 
						       UINT Adapter, D3DDEVTYPE DeviceType, D3DFORMAT AdapterFormat,
						       D3DFORMAT RenderTargetFormat, D3DFORMAT DepthStencilFormat) {
    IDirect3D8Impl *This = (IDirect3D8Impl *)iface;
    return IWineD3D_CheckDepthStencilMatch(This->WineD3D, Adapter, DeviceType, AdapterFormat,
                                           RenderTargetFormat, DepthStencilFormat);
}

static HRESULT  WINAPI  IDirect3D8Impl_GetDeviceCaps(LPDIRECT3D8 iface, UINT Adapter, D3DDEVTYPE DeviceType, D3DCAPS8* pCaps) {
    IDirect3D8Impl *This = (IDirect3D8Impl *)iface;
    HRESULT hrc = D3D_OK;
    WINED3DCAPS *pWineCaps;

    TRACE("(%p) Relay %d %u %p\n", This, Adapter, DeviceType, pCaps);

    if(NULL == pCaps){
        return D3DERR_INVALIDCALL;
    }
    pWineCaps = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(WINED3DCAPS));
    if(pWineCaps == NULL){
        return D3DERR_INVALIDCALL; /*well this is what MSDN says to return*/
    }
    D3D8CAPSTOWINECAPS(pCaps, pWineCaps)
    hrc = IWineD3D_GetDeviceCaps(This->WineD3D, Adapter, DeviceType, pWineCaps);
    HeapFree(GetProcessHeap(), 0, pWineCaps);

    /* D3D8 doesn't support SM 2.0 or higher, so clamp to 1.x */
    if(pCaps->PixelShaderVersion > D3DPS_VERSION(1,4)){
        pCaps->PixelShaderVersion = D3DPS_VERSION(1,4);
    }
    if(pCaps->VertexShaderVersion > D3DVS_VERSION(1,1)){
        pCaps->VertexShaderVersion = D3DVS_VERSION(1,1);
    }

    TRACE("(%p) returning %p\n", This, pCaps);
    return hrc;
}

static HMONITOR WINAPI  IDirect3D8Impl_GetAdapterMonitor(LPDIRECT3D8 iface, UINT Adapter) {
    IDirect3D8Impl *This = (IDirect3D8Impl *)iface;
    return IWineD3D_GetAdapterMonitor(This->WineD3D, Adapter);
}

/* Internal function called back during the CreateDevice to create a render target */
HRESULT WINAPI D3D8CB_CreateRenderTarget(IUnknown *device, IUnknown *pSuperior, UINT Width, UINT Height,
                                         WINED3DFORMAT Format, WINED3DMULTISAMPLE_TYPE MultiSample,
                                         DWORD MultisampleQuality, BOOL Lockable,
                                         IWineD3DSurface** ppSurface, HANDLE* pSharedHandle) {
    HRESULT res = D3D_OK;
    IDirect3DSurface8Impl *d3dSurface = NULL;

    TRACE("(%p) call back\n", device);
    res = IDirect3DDevice8_CreateRenderTarget((IDirect3DDevice8 *)device, Width, Height, 
                                         (D3DFORMAT)Format, MultiSample, Lockable, 
                                         (IDirect3DSurface8 **)&d3dSurface);

    if (SUCCEEDED(res)) {
        *ppSurface = d3dSurface->wineD3DSurface;
        d3dSurface->container = device;
        d3dSurface->isImplicit = TRUE;
        /* Implicit surfaces are created with an refcount of 0 */
        IUnknown_Release((IUnknown *)d3dSurface);
    } else {
        *ppSurface = NULL;
    }
    return res;
}

ULONG WINAPI D3D8CB_DestroyRenderTarget(IWineD3DSurface *pSurface) {
    IDirect3DSurface8Impl* surfaceParent;
    TRACE("(%p) call back\n", pSurface);

    IWineD3DSurface_GetParent(pSurface, (IUnknown **) &surfaceParent);
    surfaceParent->isImplicit = FALSE;
    /* Surface had refcount of 0 GetParent addrefed to 1, so 1 Release is enough */
    return IDirect3DSurface8_Release((IDirect3DSurface8*) surfaceParent);
}

/* Callback for creating the inplicite swapchain when the device is created */
static HRESULT WINAPI D3D8CB_CreateAdditionalSwapChain(IUnknown *device,
                                                WINED3DPRESENT_PARAMETERS* pPresentationParameters,
                                                IWineD3DSwapChain ** ppSwapChain){
    HRESULT res = D3D_OK;
    IDirect3DSwapChain8Impl *d3dSwapChain = NULL;
    D3DPRESENT_PARAMETERS localParameters;
    TRACE("(%p) call back\n", device);

    localParameters.BackBufferWidth                = *(pPresentationParameters->BackBufferWidth);
    localParameters.BackBufferHeight               = *(pPresentationParameters->BackBufferHeight);
    localParameters.BackBufferFormat               = *(pPresentationParameters->BackBufferFormat);
    localParameters.BackBufferCount                = *(pPresentationParameters->BackBufferCount);
    localParameters.MultiSampleType                = *(pPresentationParameters->MultiSampleType);
    /* d3d9 only */
    /* localParameters.MultiSampleQuality             = *(pPresentationParameters->MultiSampleQuality); */
    localParameters.SwapEffect                     = *(pPresentationParameters->SwapEffect);
    localParameters.hDeviceWindow                  = *(pPresentationParameters->hDeviceWindow);
    localParameters.Windowed                       = *(pPresentationParameters->Windowed);
    localParameters.EnableAutoDepthStencil         = *(pPresentationParameters->EnableAutoDepthStencil);
    localParameters.AutoDepthStencilFormat         = *(pPresentationParameters->AutoDepthStencilFormat);
    localParameters.Flags                          = *(pPresentationParameters->Flags);
    localParameters.FullScreen_RefreshRateInHz     = *(pPresentationParameters->FullScreen_RefreshRateInHz);
    /* d3d9 only */
    /*    localParameters.PresentationInterval           = *(pPresentationParameters->PresentationInterval); */

    /*copy the presentation parameters*/
    res = IDirect3DDevice8_CreateAdditionalSwapChain((IDirect3DDevice8 *)device, &localParameters, (IDirect3DSwapChain8 **)&d3dSwapChain);

    if (SUCCEEDED(res)) {
        *ppSwapChain = d3dSwapChain->wineD3DSwapChain;
        IUnknown_Release(d3dSwapChain->parentDevice);
        d3dSwapChain->parentDevice = NULL;
    } else {
        *ppSwapChain = NULL;
    }

    /*Copy back the presentation parameters*/
    *pPresentationParameters->BackBufferWidth               = localParameters.BackBufferWidth;
    *pPresentationParameters->BackBufferHeight              = localParameters.BackBufferHeight;
    *pPresentationParameters->BackBufferFormat              = localParameters.BackBufferFormat;
    *pPresentationParameters->BackBufferCount               = localParameters.BackBufferCount;
    *pPresentationParameters->MultiSampleType               = localParameters.MultiSampleType;
    /* d3d9 only */
    /* *pPresentationParameters->MultiSampleQuality            = localParameters.MultiSampleQuality; */
    *pPresentationParameters->SwapEffect                    = localParameters.SwapEffect;
    *pPresentationParameters->hDeviceWindow                 = localParameters.hDeviceWindow;
    *pPresentationParameters->Windowed                      = localParameters.Windowed;
    *pPresentationParameters->EnableAutoDepthStencil        = localParameters.EnableAutoDepthStencil;
    *pPresentationParameters->AutoDepthStencilFormat        = localParameters.AutoDepthStencilFormat;
    *pPresentationParameters->Flags                         = localParameters.Flags;
    *pPresentationParameters->FullScreen_RefreshRateInHz    = localParameters.FullScreen_RefreshRateInHz;
    /* d3d9 only */
    /* *pPresentationParameters->PresentationInterval          = localParameters.PresentationInterval; */

   return res;
}

ULONG WINAPI D3D8CB_DestroySwapChain(IWineD3DSwapChain *pSwapChain) {
    IUnknown* swapChainParent;
    TRACE("(%p) call back\n", pSwapChain);

    IWineD3DSwapChain_GetParent(pSwapChain, &swapChainParent);
    IUnknown_Release(swapChainParent);
    return IUnknown_Release(swapChainParent);
}

/* Internal function called back during the CreateDevice to create a render target */
HRESULT WINAPI D3D8CB_CreateDepthStencilSurface(IUnknown *device, IUnknown *pSuperior, UINT Width, UINT Height,
                                         WINED3DFORMAT Format, WINED3DMULTISAMPLE_TYPE MultiSample,
                                         DWORD MultisampleQuality, BOOL Discard,
                                         IWineD3DSurface** ppSurface, HANDLE* pSharedHandle) {
    HRESULT res = D3D_OK;
    IDirect3DSurface8Impl *d3dSurface = NULL;
    TRACE("(%p) call back\n", device);

    res = IDirect3DDevice8_CreateDepthStencilSurface((IDirect3DDevice8 *)device, Width, Height, 
                                         (D3DFORMAT)Format, MultiSample, (IDirect3DSurface8 **)&d3dSurface);
    if (SUCCEEDED(res)) {
        *ppSurface = d3dSurface->wineD3DSurface;
        d3dSurface->container = device;
        d3dSurface->isImplicit = TRUE;
        /* Implicit surfaces are created with an refcount of 0 */
        IUnknown_Release((IUnknown *)d3dSurface);
    }
    return res;
}

ULONG WINAPI D3D8CB_DestroyDepthStencilSurface(IWineD3DSurface *pSurface) {
    IDirect3DSurface8Impl* surfaceParent;
    TRACE("(%p) call back\n", pSurface);

    IWineD3DSurface_GetParent(pSurface, (IUnknown **) &surfaceParent);
    surfaceParent->isImplicit = FALSE;
    /* Surface had refcount of 0 GetParent addrefed to 1, so 1 Release is enough */
    return IDirect3DSurface8_Release((IDirect3DSurface8*) surfaceParent);
}

static HRESULT WINAPI IDirect3D8Impl_CreateDevice(LPDIRECT3D8 iface, UINT Adapter, D3DDEVTYPE DeviceType, HWND hFocusWindow,
                                            DWORD BehaviourFlags, D3DPRESENT_PARAMETERS* pPresentationParameters,
                                            IDirect3DDevice8** ppReturnedDeviceInterface) {

    IDirect3D8Impl       *This   = (IDirect3D8Impl *)iface;
    IDirect3DDevice8Impl *object = NULL;
    WINED3DPRESENT_PARAMETERS localParameters;
    HRESULT hr;
    TRACE("(%p) Relay\n", This);

    /* Check the validity range of the adapter parameter */
    if (Adapter >= IDirect3D8Impl_GetAdapterCount(iface)) {
        *ppReturnedDeviceInterface = NULL;
        return D3DERR_INVALIDCALL;
    }

    /* Allocate the storage for the device object */
    object = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirect3DDevice8Impl));
    if (NULL == object) {
        FIXME("Allocation of memory failed\n");
        *ppReturnedDeviceInterface = NULL;
        return D3DERR_OUTOFVIDEOMEMORY;
    }

    object->lpVtbl = &Direct3DDevice8_Vtbl;
    object->ref = 1;
    object->shader_handles = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, INITIAL_SHADER_HANDLE_TABLE_SIZE * sizeof(shader_handle));
    object->shader_handle_table_size = INITIAL_SHADER_HANDLE_TABLE_SIZE;
    *ppReturnedDeviceInterface = (IDirect3DDevice8 *)object;

    /* Allocate an associated WineD3DDevice object */
    localParameters.BackBufferWidth                = &pPresentationParameters->BackBufferWidth;             
    localParameters.BackBufferHeight               = &pPresentationParameters->BackBufferHeight;
    localParameters.BackBufferFormat               = (WINED3DFORMAT *)&pPresentationParameters->BackBufferFormat;
    localParameters.BackBufferCount                = &pPresentationParameters->BackBufferCount;
    localParameters.MultiSampleType                = (WINED3DMULTISAMPLE_TYPE *) &pPresentationParameters->MultiSampleType;
    /* d3d9 only */
    localParameters.MultiSampleQuality             = NULL;
    localParameters.SwapEffect                     = (WINED3DSWAPEFFECT *) &pPresentationParameters->SwapEffect;
    localParameters.hDeviceWindow                  = &pPresentationParameters->hDeviceWindow;
    localParameters.Windowed                       = &pPresentationParameters->Windowed;
    localParameters.EnableAutoDepthStencil         = &pPresentationParameters->EnableAutoDepthStencil;
    localParameters.AutoDepthStencilFormat         = (WINED3DFORMAT *)&pPresentationParameters->AutoDepthStencilFormat;
    localParameters.Flags                          = &pPresentationParameters->Flags;
    localParameters.FullScreen_RefreshRateInHz     = &pPresentationParameters->FullScreen_RefreshRateInHz;
    localParameters.PresentationInterval           = &pPresentationParameters->FullScreen_PresentationInterval;/* Renamed in dx9 */

    hr =IWineD3D_CreateDevice(This->WineD3D, Adapter, DeviceType, hFocusWindow, BehaviourFlags, &object->WineD3DDevice, (IUnknown *)object);

    if (hr != D3D_OK) {
        HeapFree(GetProcessHeap(), 0, object);
        *ppReturnedDeviceInterface = NULL;
        return hr;
    }

    TRACE("(%p) : Created Device %p\n", This, object);

    hr = IWineD3DDevice_Init3D(object->WineD3DDevice, &localParameters, D3D8CB_CreateAdditionalSwapChain);
    if (hr != D3D_OK) {
        FIXME("(%p) D3D Initialization failed for WineD3DDevice %p\n", This, object->WineD3DDevice);
        HeapFree(GetProcessHeap(), 0, object);
        *ppReturnedDeviceInterface = NULL;
    }

    return hr;
}

const IDirect3D8Vtbl Direct3D8_Vtbl =
{
    /* IUnknown */
    IDirect3D8Impl_QueryInterface,
    IDirect3D8Impl_AddRef,
    IDirect3D8Impl_Release,
    /* IDirect3D8 */
    IDirect3D8Impl_RegisterSoftwareDevice,
    IDirect3D8Impl_GetAdapterCount,
    IDirect3D8Impl_GetAdapterIdentifier,
    IDirect3D8Impl_GetAdapterModeCount,
    IDirect3D8Impl_EnumAdapterModes,
    IDirect3D8Impl_GetAdapterDisplayMode,
    IDirect3D8Impl_CheckDeviceType,
    IDirect3D8Impl_CheckDeviceFormat,
    IDirect3D8Impl_CheckDeviceMultiSampleType,
    IDirect3D8Impl_CheckDepthStencilMatch,
    IDirect3D8Impl_GetDeviceCaps,
    IDirect3D8Impl_GetAdapterMonitor,
    IDirect3D8Impl_CreateDevice
};