device.c

这是一个开放源代码的与WINNT/WIN2K/WIN2003兼容的操作系统

        }
        for (j = 0 ; j < MAX_COMBINED_SAMPLERS; j++){
            for (i =0; i < NUM_SAVEDVERTEXSTATES_S;i++) {
                object->changed.samplerState[j][SavedVertexStates_S[i]] = TRUE;
                object->contained_sampler_states[object->num_contained_sampler_states].stage = j;
                object->contained_sampler_states[object->num_contained_sampler_states].state = SavedVertexStates_S[i];
                object->num_contained_sampler_states++;
            }
        }

        for(j = 0; j < LIGHTMAP_SIZE; j++) {
            struct list *e;
            LIST_FOR_EACH(e, &object->lightMap[j]) {
                PLIGHTINFOEL *light = LIST_ENTRY(e, PLIGHTINFOEL, entry);
                light->changed = TRUE;
                light->enabledChanged = TRUE;
            }
        }
    } else {
        FIXME("Unrecognized state block type %d\n", Type);
    }

    TRACE("(%p) returning token (ptr to stateblock) of %p\n", This, object);
    return WINED3D_OK;
}

/* ************************************
MSDN:
[in] Render targets are not lockable unless the application specifies TRUE for Lockable. Note that lockable render targets reduce performance on some graphics hardware.

Discard
 [in] Set this flag to TRUE to enable z-buffer discarding, and FALSE otherwise. 

If this flag is set, the contents of the depth stencil buffer will be invalid after calling either IDirect3DDevice9::Present or IDirect3DDevice9::SetDepthStencilSurface with a different depth surface.

******************************** */
 
static HRESULT  WINAPI IWineD3DDeviceImpl_CreateSurface(IWineD3DDevice *iface, UINT Width, UINT Height, WINED3DFORMAT Format, BOOL Lockable, BOOL Discard, UINT Level, IWineD3DSurface **ppSurface,WINED3DRESOURCETYPE Type, DWORD Usage, WINED3DPOOL Pool, WINED3DMULTISAMPLE_TYPE MultiSample ,DWORD MultisampleQuality, HANDLE* pSharedHandle, WINED3DSURFTYPE Impl, IUnknown *parent) {
    IWineD3DDeviceImpl  *This = (IWineD3DDeviceImpl *)iface;    
    IWineD3DSurfaceImpl *object; /*NOTE: impl ref allowed since this is a create function */
    unsigned int Size       = 1;
    const StaticPixelFormatDesc *tableEntry = getFormatDescEntry(Format, NULL, NULL);
    TRACE("(%p) Create surface\n",This);
    
    /** FIXME: Check ranges on the inputs are valid 
     * MSDN
     *   MultisampleQuality
     *    [in] Quality level. The valid range is between zero and one less than the level
     *    returned by pQualityLevels used by IDirect3D9::CheckDeviceMultiSampleType. 
     *    Passing a larger value returns the error WINED3DERR_INVALIDCALL. The MultisampleQuality
     *    values of paired render targets, depth stencil surfaces, and the MultiSample type
     *    must all match.
      *******************************/


    /**
    * TODO: Discard MSDN
    * [in] Set this flag to TRUE to enable z-buffer discarding, and FALSE otherwise.
    *
    * If this flag is set, the contents of the depth stencil buffer will be
    * invalid after calling either IDirect3DDevice9::Present or  * IDirect3DDevice9::SetDepthStencilSurface
    * with a different depth surface.
    *
    *This flag has the same behavior as the constant, D3DPRESENTFLAG_DISCARD_DEPTHSTENCIL, in D3DPRESENTFLAG.
    ***************************/

    if(MultisampleQuality < 0) {
        FIXME("Invalid multisample level %d\n", MultisampleQuality);
        return WINED3DERR_INVALIDCALL; /* TODO: Check that this is the case! */
    }

    if(MultisampleQuality > 0) {
        FIXME("MultisampleQuality set to %d, substituting 0\n", MultisampleQuality);
        MultisampleQuality=0;
    }

    /** FIXME: Check that the format is supported
    *    by the device.
      *******************************/

    /** DXTn mipmaps use the same number of 'levels' down to eg. 8x1, but since
     *  it is based around 4x4 pixel blocks it requires padding, so allocate enough
     *  space!
      *********************************/
    if (WINED3DFMT_UNKNOWN == Format) {
        Size = 0;
    } else if (Format == WINED3DFMT_DXT1) {
        /* DXT1 is half byte per pixel */
       Size = ((max(Width,4) * tableEntry->bpp) * max(Height,4)) >> 1;

    } else if (Format == WINED3DFMT_DXT2 || Format == WINED3DFMT_DXT3 ||
               Format == WINED3DFMT_DXT4 || Format == WINED3DFMT_DXT5) {
       Size = ((max(Width,4) * tableEntry->bpp) * max(Height,4));
    } else {
       /* The pitch is a multiple of 4 bytes */
        Size = ((Width * tableEntry->bpp) + This->surface_alignment - 1) & ~(This->surface_alignment - 1);
       Size *= Height;
    }

    /** Create and initialise the surface resource **/
    D3DCREATERESOURCEOBJECTINSTANCE(object,Surface,WINED3DRTYPE_SURFACE, Size)
    /* "Standalone" surface */
    IWineD3DSurface_SetContainer((IWineD3DSurface *)object, NULL);

    object->currentDesc.Width      = Width;
    object->currentDesc.Height     = Height;
    object->currentDesc.MultiSampleType    = MultiSample;
    object->currentDesc.MultiSampleQuality = MultisampleQuality;
    object->glDescription.level            = Level;

    /* Flags */
    object->Flags      = 0;
    object->Flags     |= Discard ? SFLAG_DISCARD : 0;
    object->Flags     |= (WINED3DFMT_D16_LOCKABLE == Format) ? SFLAG_LOCKABLE : 0;
    object->Flags     |= Lockable ? SFLAG_LOCKABLE : 0;


    if (WINED3DFMT_UNKNOWN != Format) {
        object->bytesPerPixel = tableEntry->bpp;
    } else {
        object->bytesPerPixel = 0;
    }

    /** TODO: change this into a texture transform matrix so that it's processed in hardware **/

    TRACE("Pool %d %d %d %d\n",Pool, WINED3DPOOL_DEFAULT, WINED3DPOOL_MANAGED, WINED3DPOOL_SYSTEMMEM);

    /** Quick lockable sanity check TODO: remove this after surfaces, usage and lockability have been debugged properly
    * this function is too deep to need to care about things like this.
    * Levels need to be checked too, and possibly Type since they all affect what can be done.
    * ****************************************/
    switch(Pool) {
    case WINED3DPOOL_SCRATCH:
        if(!Lockable)
            FIXME("Create surface called with a pool of SCRATCH and a Lockable of FALSE "
                "which are mutually exclusive, setting lockable to TRUE\n");
                Lockable = TRUE;
    break;
    case WINED3DPOOL_SYSTEMMEM:
        if(!Lockable) FIXME("Create surface called with a pool of SYSTEMMEM and a Lockable of FALSE, "
                                    "this is acceptable but unexpected (I can't know how the surface can be usable!)\n");
    case WINED3DPOOL_MANAGED:
        if(Usage == WINED3DUSAGE_DYNAMIC) FIXME("Create surface called with a pool of MANAGED and a "
                                                "Usage of DYNAMIC which are mutually exclusive, not doing "
                                                "anything just telling you.\n");
    break;
    case WINED3DPOOL_DEFAULT: /*TODO: Create offscreen plain can cause this check to fail..., find out if it should */
        if(!(Usage & WINED3DUSAGE_DYNAMIC) && !(Usage & WINED3DUSAGE_RENDERTARGET)
           && !(Usage && WINED3DUSAGE_DEPTHSTENCIL ) && Lockable)
            WARN("Creating a surface with a POOL of DEFAULT with Lockable true, that doesn't specify DYNAMIC usage.\n");
    break;
    default:
        FIXME("(%p) Unknown pool %d\n", This, Pool);
    break;
    };

    if (Usage & WINED3DUSAGE_RENDERTARGET && Pool != WINED3DPOOL_DEFAULT) {
        FIXME("Trying to create a render target that isn't in the default pool\n");
    }

    /* mark the texture as dirty so that it gets loaded first time around*/
    IWineD3DSurface_AddDirtyRect(*ppSurface, NULL);
    TRACE("(%p) : w(%d) h(%d) fmt(%d,%s) lockable(%d) surf@%p, surfmem@%p, %d bytes\n",
           This, Width, Height, Format, debug_d3dformat(Format),
           (WINED3DFMT_D16_LOCKABLE == Format), *ppSurface, object->resource.allocatedMemory, object->resource.size);

    /* Store the DirectDraw primary surface. This is the first rendertarget surface created */
    if( (Usage & WINED3DUSAGE_RENDERTARGET) && (!This->ddraw_primary) )
        This->ddraw_primary = (IWineD3DSurface *) object;

    /* Look at the implementation and set the correct Vtable */
    switch(Impl) {
        case SURFACE_OPENGL:
            /* Check if a 3D adapter is available when creating gl surfaces */
            if(!This->adapter) {
                ERR("OpenGL surfaces are not available without opengl\n");
                HeapFree(GetProcessHeap(), 0, object->resource.allocatedMemory);
                HeapFree(GetProcessHeap(), 0, object);
                return WINED3DERR_NOTAVAILABLE;
            }
            break;

        case SURFACE_GDI:
            object->lpVtbl = &IWineGDISurface_Vtbl;
            break;

        default:
            /* To be sure to catch this */
            ERR("Unknown requested surface implementation %d!\n", Impl);
            IWineD3DSurface_Release((IWineD3DSurface *) object);
            return WINED3DERR_INVALIDCALL;
    }

    list_init(&object->renderbuffers);

    /* Call the private setup routine */
    return IWineD3DSurface_PrivateSetup( (IWineD3DSurface *) object );

}

static HRESULT  WINAPI IWineD3DDeviceImpl_CreateTexture(IWineD3DDevice *iface, UINT Width, UINT Height, UINT Levels,
                                                 DWORD Usage, WINED3DFORMAT Format, WINED3DPOOL Pool,
                                                 IWineD3DTexture** ppTexture, HANDLE* pSharedHandle, IUnknown *parent,
                                                 D3DCB_CREATESURFACEFN D3DCB_CreateSurface) {

    IWineD3DDeviceImpl *This = (IWineD3DDeviceImpl *)iface;
    IWineD3DTextureImpl *object;
    unsigned int i;
    UINT tmpW;
    UINT tmpH;
    HRESULT hr;
    unsigned int pow2Width;
    unsigned int pow2Height;


    TRACE("(%p) : Width %d, Height %d, Levels %d, Usage %#x\n", This, Width, Height, Levels, Usage);
    TRACE("Format %#x (%s), Pool %#x, ppTexture %p, pSharedHandle %p, parent %p\n",
            Format, debug_d3dformat(Format), Pool, ppTexture, pSharedHandle, parent);

    /* TODO: It should only be possible to create textures for formats 
             that are reported as supported */
    if (WINED3DFMT_UNKNOWN >= Format) {
        WARN("(%p) : Texture cannot be created with a format of WINED3DFMT_UNKNOWN\n", This);
        return WINED3DERR_INVALIDCALL;
    }

    D3DCREATERESOURCEOBJECTINSTANCE(object, Texture, WINED3DRTYPE_TEXTURE, 0);
    D3DINITIALIZEBASETEXTURE(object->baseTexture);    
    object->width  = Width;
    object->height = Height;

    /** Non-power2 support **/
    if (GL_SUPPORT(ARB_TEXTURE_NON_POWER_OF_TWO)) {
        pow2Width = Width;
        pow2Height = Height;
    } else {
        /* Find the nearest pow2 match */
        pow2Width = pow2Height = 1;
        while (pow2Width < Width) pow2Width <<= 1;
        while (pow2Height < Height) pow2Height <<= 1;
    }

    /** FIXME: add support for real non-power-two if it's provided by the video card **/
    /* Precalculated scaling for 'faked' non power of two texture coords */
    object->pow2scalingFactorX  =  (((float)Width)  / ((float)pow2Width));
    object->pow2scalingFactorY  =  (((float)Height) / ((float)pow2Height));
    TRACE(" xf(%f) yf(%f)\n", object->pow2scalingFactorX, object->pow2scalingFactorY);

    /* Calculate levels for mip mapping */
    if (Levels == 0) {
        TRACE("calculating levels %d\n", object->baseTexture.levels);
        object->baseTexture.levels++;
        tmpW = Width;
        tmpH = Height;
        while (tmpW > 1 || tmpH > 1) {
            tmpW = max(1, tmpW >> 1);
            tmpH = max(1, tmpH >> 1);
            object->baseTexture.levels++;
        }
        TRACE("Calculated levels = %d\n", object->baseTexture.levels);
    }

    /* Generate all the surfaces */
    tmpW = Width;
    tmpH = Height;
    for (i = 0; i < object->baseTexture.levels; i++)
    {
        /* use the callback to create the texture surface */
        hr = D3DCB_CreateSurface(This->parent, parent, tmpW, tmpH, Format, Usage, Pool, i, WINED3DCUBEMAP_FACE_POSITIVE_X, &object->surfaces[i],NULL);
        if (hr!= WINED3D_OK || ( (IWineD3DSurfaceImpl *) object->surfaces[i])->Flags & SFLAG_OVERSIZE) {
            FIXME("Failed to create surface  %p\n", object);
            /* clean up */
            object->surfaces[i] = NULL;
            IWineD3DTexture_Release((IWineD3DTexture *)object);

            *ppTexture = NULL;
            return hr;
        }

        IWineD3DSurface_SetContainer(object->surfaces[i], (IWineD3DBase *)object);
        TRACE("Created surface level %d @ %p\n", i, object->surfaces[i]);
        /* calculate the next mipmap level */
        tmpW = max(1, tmpW >> 1);
        tmpH = max(1, tmpH >> 1);
    }

    TRACE("(%p) : Created  texture %p\n", This, object);
    return WINED3D_OK;
}

static HRESULT WINAPI IWineD3DDeviceImpl_CreateVolumeTexture(IWineD3DDevice *iface,
                                                      UINT Width, UINT Height, UINT Depth,
                                                      UINT Levels, DWORD Usage,
                                                      WINED3DFORMAT Format, WINED3DPOOL Pool,
                                                      IWineD3DVolumeTexture **ppVolumeTexture,
                                                      HANDLE *pSharedHandle, IUnknown *parent,
                                                      D3DCB_CREATEVOLUMEFN D3DCB_CreateVolume) {