/*
 * IDirect3DVertexShader9 implementation
 *
 * Copyright 2002-2003 Jason Edmeades
 *                     Raphael Junqueira
 *
 * 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 "d3d9_private.h"

WINE_DEFAULT_DEBUG_CHANNEL(d3d9);

/* IDirect3DVertexShader9 IUnknown parts follow: */
static HRESULT WINAPI IDirect3DVertexShader9Impl_QueryInterface(LPDIRECT3DVERTEXSHADER9 iface, REFIID riid, LPVOID* ppobj) {
    IDirect3DVertexShader9Impl *This = (IDirect3DVertexShader9Impl *)iface;

    if (IsEqualGUID(riid, &IID_IUnknown)
        || IsEqualGUID(riid, &IID_IDirect3DVertexShader9)) {
        IDirect3DVertexShader9_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 IDirect3DVertexShader9Impl_AddRef(LPDIRECT3DVERTEXSHADER9 iface) {
    IDirect3DVertexShader9Impl *This = (IDirect3DVertexShader9Impl *)iface;
    ULONG ref = InterlockedIncrement(&This->ref);

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

    return ref;
}

static ULONG WINAPI IDirect3DVertexShader9Impl_Release(LPDIRECT3DVERTEXSHADER9 iface) {
    IDirect3DVertexShader9Impl *This = (IDirect3DVertexShader9Impl *)iface;
    ULONG ref = InterlockedDecrement(&This->ref);

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

    if (ref == 0) {
        EnterCriticalSection(&d3d9_cs);
        IWineD3DVertexShader_Release(This->wineD3DVertexShader);
        LeaveCriticalSection(&d3d9_cs);
        IDirect3DDevice9Ex_Release(This->parentDevice);
        HeapFree(GetProcessHeap(), 0, This);
    }
    return ref;
}

/* IDirect3DVertexShader9 Interface follow: */
static HRESULT WINAPI IDirect3DVertexShader9Impl_GetDevice(LPDIRECT3DVERTEXSHADER9 iface, IDirect3DDevice9** ppDevice) {
    IDirect3DVertexShader9Impl *This = (IDirect3DVertexShader9Impl *)iface;
    IWineD3DDevice *myDevice = NULL;
    HRESULT hr;
    TRACE("(%p) : Relay\n", This);

    EnterCriticalSection(&d3d9_cs);
    hr = IWineD3DVertexShader_GetDevice(This->wineD3DVertexShader, &myDevice);
    if (WINED3D_OK == hr && myDevice != NULL) {
        hr = IWineD3DDevice_GetParent(myDevice, (IUnknown **)ppDevice);
        IWineD3DDevice_Release(myDevice);
    } else {
        *ppDevice = NULL;
    }
    LeaveCriticalSection(&d3d9_cs);
    TRACE("(%p) returning (%p)\n", This, *ppDevice);
    return hr;
}

static HRESULT WINAPI IDirect3DVertexShader9Impl_GetFunction(LPDIRECT3DVERTEXSHADER9 iface, VOID* pData, UINT* pSizeOfData) {
    IDirect3DVertexShader9Impl *This = (IDirect3DVertexShader9Impl *)iface;
    HRESULT hr;
    TRACE("(%p) : Relay\n", This);

    EnterCriticalSection(&d3d9_cs);
    hr = IWineD3DVertexShader_GetFunction(This->wineD3DVertexShader, pData, pSizeOfData);
    LeaveCriticalSection(&d3d9_cs);
    return hr;
}


static const IDirect3DVertexShader9Vtbl Direct3DVertexShader9_Vtbl =
{
    /* IUnknown */
    IDirect3DVertexShader9Impl_QueryInterface,
    IDirect3DVertexShader9Impl_AddRef,
    IDirect3DVertexShader9Impl_Release,
    /* IDirect3DVertexShader9 */
    IDirect3DVertexShader9Impl_GetDevice,
    IDirect3DVertexShader9Impl_GetFunction
};


/* IDirect3DDevice9 IDirect3DVertexShader9 Methods follow: */
HRESULT WINAPI IDirect3DDevice9Impl_CreateVertexShader(LPDIRECT3DDEVICE9EX iface, CONST DWORD* pFunction, IDirect3DVertexShader9** ppShader) {
    IDirect3DDevice9Impl *This = (IDirect3DDevice9Impl *)iface;
    HRESULT hrc = D3D_OK;
    IDirect3DVertexShader9Impl *object;

    /* Setup a stub object for now */
    object = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*object));
    TRACE("(%p) : pFunction(%p), ppShader(%p)\n", This, pFunction, ppShader);
    if (NULL == object) {
        FIXME("Allocation of memory failed, returning D3DERR_OUTOFVIDEOMEMORY\n");
        return D3DERR_OUTOFVIDEOMEMORY;
    }

    object->ref = 1;
    object->lpVtbl = &Direct3DVertexShader9_Vtbl;
    EnterCriticalSection(&d3d9_cs);
    hrc= IWineD3DDevice_CreateVertexShader(This->WineD3DDevice, pFunction,
            NULL /* output signature */, &object->wineD3DVertexShader, (IUnknown *)object);
    LeaveCriticalSection(&d3d9_cs);

    if (FAILED(hrc)) {

        /* free up object */
        FIXME("Call to IWineD3DDevice_CreateVertexShader failed\n");
        HeapFree(GetProcessHeap(), 0, object);
    }else{
        IDirect3DDevice9Ex_AddRef(iface);
        object->parentDevice = iface;
        *ppShader = (IDirect3DVertexShader9 *)object;
        TRACE("(%p) : Created vertex shader %p\n", This, object);
    }

    TRACE("(%p) : returning %p\n", This, *ppShader);
    return hrc;
}

HRESULT WINAPI IDirect3DDevice9Impl_SetVertexShader(LPDIRECT3DDEVICE9EX iface, IDirect3DVertexShader9* pShader) {
    IDirect3DDevice9Impl *This = (IDirect3DDevice9Impl *)iface;
    HRESULT hrc = D3D_OK;

    TRACE("(%p) : Relay\n", This);
    EnterCriticalSection(&d3d9_cs);
    hrc =  IWineD3DDevice_SetVertexShader(This->WineD3DDevice, pShader==NULL?NULL:((IDirect3DVertexShader9Impl *)pShader)->wineD3DVertexShader);
    LeaveCriticalSection(&d3d9_cs);

    TRACE("(%p) : returning hr(%u)\n", This, hrc);
    return hrc;
}

HRESULT WINAPI IDirect3DDevice9Impl_GetVertexShader(LPDIRECT3DDEVICE9EX iface, IDirect3DVertexShader9** ppShader) {
    IDirect3DDevice9Impl *This = (IDirect3DDevice9Impl *)iface;
    IWineD3DVertexShader *pShader;
    HRESULT hrc = D3D_OK;

    TRACE("(%p) : Relay  device@%p\n", This, This->WineD3DDevice);
    EnterCriticalSection(&d3d9_cs);
    hrc = IWineD3DDevice_GetVertexShader(This->WineD3DDevice, &pShader);
    if (SUCCEEDED(hrc))
    {
        if (pShader)
        {
            hrc = IWineD3DVertexShader_GetParent(pShader, (IUnknown **)ppShader);
            IWineD3DVertexShader_Release(pShader);
        }
        else
        {
            *ppShader = NULL;
        }
    }
    else
    {
        WARN("(%p) : Call to IWineD3DDevice_GetVertexShader failed %u (device %p)\n", This, hrc, This->WineD3DDevice);
    }
    LeaveCriticalSection(&d3d9_cs);
    TRACE("(%p) : returning %p\n", This, *ppShader);
    return hrc;
}

HRESULT WINAPI IDirect3DDevice9Impl_SetVertexShaderConstantF(LPDIRECT3DDEVICE9EX iface, UINT Register, CONST float* pConstantData, UINT Vector4fCount) {
    IDirect3DDevice9Impl *This = (IDirect3DDevice9Impl *)iface;
    HRESULT hr;
    TRACE("(%p) : Relay\n", This);

    if(Register + Vector4fCount > D3D9_MAX_VERTEX_SHADER_CONSTANTF) {
        WARN("Trying to access %u constants, but d3d9 only supports %u\n",
             Register + Vector4fCount, D3D9_MAX_VERTEX_SHADER_CONSTANTF);
        return D3DERR_INVALIDCALL;
    }

    EnterCriticalSection(&d3d9_cs);
    hr = IWineD3DDevice_SetVertexShaderConstantF(This->WineD3DDevice, Register, pConstantData, Vector4fCount);
    LeaveCriticalSection(&d3d9_cs);
    return hr;
}

HRESULT WINAPI IDirect3DDevice9Impl_GetVertexShaderConstantF(LPDIRECT3DDEVICE9EX iface, UINT Register, float* pConstantData, UINT Vector4fCount) {
    IDirect3DDevice9Impl *This = (IDirect3DDevice9Impl *)iface;
    HRESULT hr;

    if(Register + Vector4fCount > D3D9_MAX_VERTEX_SHADER_CONSTANTF) {
        WARN("Trying to access %u constants, but d3d9 only supports %u\n",
             Register + Vector4fCount, D3D9_MAX_VERTEX_SHADER_CONSTANTF);
        return D3DERR_INVALIDCALL;
    }

    TRACE("(%p) : Relay\n", This);
    EnterCriticalSection(&d3d9_cs);
    hr = IWineD3DDevice_GetVertexShaderConstantF(This->WineD3DDevice, Register, pConstantData, Vector4fCount);
    LeaveCriticalSection(&d3d9_cs);
    return hr;
}

HRESULT WINAPI IDirect3DDevice9Impl_SetVertexShaderConstantI(LPDIRECT3DDEVICE9EX iface, UINT Register, CONST int* pConstantData, UINT Vector4iCount) {
    IDirect3DDevice9Impl *This = (IDirect3DDevice9Impl *)iface;
    HRESULT hr;
    TRACE("(%p) : Relay\n", This);

    EnterCriticalSection(&d3d9_cs);
    hr = IWineD3DDevice_SetVertexShaderConstantI(This->WineD3DDevice, Register, pConstantData, Vector4iCount);
    LeaveCriticalSection(&d3d9_cs);
    return hr;
}

HRESULT WINAPI IDirect3DDevice9Impl_GetVertexShaderConstantI(LPDIRECT3DDEVICE9EX iface, UINT Register, int* pConstantData, UINT Vector4iCount) {
    IDirect3DDevice9Impl *This = (IDirect3DDevice9Impl *)iface;
    HRESULT hr;
    TRACE("(%p) : Relay\n", This);

    EnterCriticalSection(&d3d9_cs);
    hr = IWineD3DDevice_GetVertexShaderConstantI(This->WineD3DDevice, Register, pConstantData, Vector4iCount);
    LeaveCriticalSection(&d3d9_cs);
    return hr;
}

HRESULT WINAPI IDirect3DDevice9Impl_SetVertexShaderConstantB(LPDIRECT3DDEVICE9EX iface, UINT Register, CONST BOOL* pConstantData, UINT BoolCount) {
    IDirect3DDevice9Impl *This = (IDirect3DDevice9Impl *)iface;
    HRESULT hr;
    TRACE("(%p) : Relay\n", This);

    EnterCriticalSection(&d3d9_cs);
    hr = IWineD3DDevice_SetVertexShaderConstantB(This->WineD3DDevice, Register, pConstantData, BoolCount);
    LeaveCriticalSection(&d3d9_cs);
    return hr;
}

HRESULT WINAPI IDirect3DDevice9Impl_GetVertexShaderConstantB(LPDIRECT3DDEVICE9EX iface, UINT Register, BOOL* pConstantData, UINT BoolCount) {
    IDirect3DDevice9Impl *This = (IDirect3DDevice9Impl *)iface;
    HRESULT hr;
    TRACE("(%p) : Relay\n", This);

    EnterCriticalSection(&d3d9_cs);
    hr = IWineD3DDevice_GetVertexShaderConstantB(This->WineD3DDevice, Register, pConstantData, BoolCount);
    LeaveCriticalSection(&d3d9_cs);
    return hr;
}