text: /*
   * Copyright 2006 Stefan Dösinger
   *
   * 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
   */
  
  #ifndef __WINE_DLLS_DDRAW_DDRAW_PRIVATE_H
  #define __WINE_DLLS_DDRAW_DDRAW_PRIVATE_H
  
  #include <assert.h>
  #include <limits.h>
  #define COBJMACROS
  #define NONAMELESSSTRUCT
  #define NONAMELESSUNION
  #include "wine/debug.h"
  #include "wine/heap.h"
  
  #include "winbase.h"
  #include "wingdi.h"
  #include "winuser.h"
  
  #include "d3d.h"
  #include "ddraw.h"
  #ifdef DDRAW_INIT_GUID
  #include "initguid.h"
  #endif
  #include "wine/list.h"
  #include "wine/wined3d.h"
  
  extern const struct wined3d_parent_ops ddraw_null_wined3d_parent_ops DECLSPEC_HIDDEN;
  extern DWORD force_refresh_rate DECLSPEC_HIDDEN;
  
  /*****************************************************************************
   * IDirectDraw implementation structure
   *****************************************************************************/
  struct FvfToDecl
  {
      DWORD fvf;
      struct wined3d_vertex_declaration *decl;
  };
  
  #define DDRAW_INITIALIZED       0x00000001
  #define DDRAW_D3D_INITIALIZED   0x00000002
  #define DDRAW_RESTORE_MODE      0x00000004
  #define DDRAW_NO3D              0x00000008
  #define DDRAW_SCL_DDRAW1        0x00000010
  #define DDRAW_SCL_RECURSIVE     0x00000020
  #define DDRAW_SWAPPED           0x00000040
  
  #define DDRAW_STRIDE_ALIGNMENT  8
  
  #define DDRAW_WINED3D_FLAGS     (WINED3D_LEGACY_DEPTH_BIAS | WINED3D_VIDMEM_ACCOUNTING \
          | WINED3D_RESTORE_MODE_ON_ACTIVATE | WINED3D_FOCUS_MESSAGES | WINED3D_PIXEL_CENTER_INTEGER \
          | WINED3D_LEGACY_UNBOUND_RESOURCE_COLOR | WINED3D_NO_PRIMITIVE_RESTART \
          | WINED3D_LEGACY_CUBEMAP_FILTERING)
  
  enum ddraw_device_state
  {
      DDRAW_DEVICE_STATE_OK,
      DDRAW_DEVICE_STATE_LOST,
      DDRAW_DEVICE_STATE_NOT_RESTORED,
  };
  
  struct ddraw
  {
      /* Interfaces */
      IDirectDraw7 IDirectDraw7_iface;
      IDirectDraw4 IDirectDraw4_iface;
      IDirectDraw2 IDirectDraw2_iface;
      IDirectDraw IDirectDraw_iface;
      IDirect3D7 IDirect3D7_iface;
      IDirect3D3 IDirect3D3_iface;
      IDirect3D2 IDirect3D2_iface;
      IDirect3D IDirect3D_iface;
      struct wined3d_device_parent device_parent;
  
      /* See comment in IDirectDraw::AddRef */
      LONG                    ref7, ref4, ref2, ref3, ref1, numIfaces;
  
      struct wined3d *wined3d;
      struct wined3d_device *wined3d_device;
      DWORD flags;
      LONG device_state;
  
      struct ddraw_surface *primary;
      RECT primary_lock;
      struct wined3d_texture *wined3d_frontbuffer;
      struct wined3d_texture *gdi_surface;
      struct wined3d_swapchain *wined3d_swapchain;
      HWND swapchain_window;
  
      /* DirectDraw things, which are not handled by WineD3D */
      DWORD                   cooperative_level;
  
      /* D3D things */
      HWND                    d3d_window;
      struct d3d_device *d3ddevice;
      int                     d3dversion;
  
      /* Various HWNDs */
      HWND                    focuswindow;
      HWND                    devicewindow;
      HWND                    dest_window;
  
      /* For the dll unload cleanup code */
      struct list ddraw_list_entry;
      /* The surface list - can't relay this to WineD3D
       * because of IParent
       */
      struct list surface_list;
  
      /* FVF management */
      struct FvfToDecl       *decls;
      UINT                    numConvertedDecls, declArraySize;
  };
  
  #define DDRAW_WINDOW_CLASS_NAME "DirectDrawDeviceWnd"
  
  HRESULT ddraw_init(struct ddraw *ddraw, DWORD flags, enum wined3d_device_type device_type) DECLSPEC_HIDDEN;
  void ddraw_d3dcaps1_from_7(D3DDEVICEDESC *caps1, D3DDEVICEDESC7 *caps7) DECLSPEC_HIDDEN;
  HRESULT ddraw_get_d3dcaps(const struct ddraw *ddraw, D3DDEVICEDESC7 *caps) DECLSPEC_HIDDEN;
  void ddraw_update_lost_surfaces(struct ddraw *ddraw) DECLSPEC_HIDDEN;
  
  static inline void ddraw_set_swapchain_window(struct ddraw *ddraw, HWND window)
  {
      if (window == GetDesktopWindow())
          window = NULL;
      ddraw->swapchain_window = window;
  }
  
  /* Utility functions */
  void DDRAW_Convert_DDSCAPS_1_To_2(const DDSCAPS *pIn, DDSCAPS2 *pOut) DECLSPEC_HIDDEN;
  void DDRAW_Convert_DDDEVICEIDENTIFIER_2_To_1(const DDDEVICEIDENTIFIER2 *pIn, DDDEVICEIDENTIFIER *pOut) DECLSPEC_HIDDEN;
  struct wined3d_vertex_declaration *ddraw_find_decl(struct ddraw *ddraw, DWORD fvf) DECLSPEC_HIDDEN;
  
  struct ddraw_surface
  {
      /* IUnknown fields */
      IDirectDrawSurface7 IDirectDrawSurface7_iface;
      IDirectDrawSurface4 IDirectDrawSurface4_iface;
      IDirectDrawSurface3 IDirectDrawSurface3_iface;
      IDirectDrawSurface2 IDirectDrawSurface2_iface;
      IDirectDrawSurface IDirectDrawSurface_iface;
      IDirectDrawGammaControl IDirectDrawGammaControl_iface;
      IDirect3DTexture2 IDirect3DTexture2_iface;
      IDirect3DTexture IDirect3DTexture_iface;
  
      LONG                     ref7, ref4, ref3, ref2, ref1, iface_count, gamma_count;
      IUnknown                *ifaceToRelease;
      IUnknown *texture_outer;
  
      int                     version;
  
      /* Connections to other Objects */
      struct ddraw *ddraw;
      struct wined3d_texture *wined3d_texture;
      unsigned int sub_resource_idx;
      struct wined3d_rendertarget_view *wined3d_rtv;
      struct wined3d_private_store private_store;
      struct d3d_device *device1;
  
      /* This implementation handles attaching surfaces to other surfaces */
      struct ddraw_surface *next_attached;
      struct ddraw_surface *first_attached;
      IUnknown                *attached_iface;
  
      /* Complex surfaces are organized in a tree, although the tree is degenerated to a list in most cases.
       * In mipmap and primary surfaces each level has only one attachment, which is the next surface level.
       * Only the cube texture root has 6 surfaces attached, which then have a normal mipmap chain attached
       * to them. So hardcode the array to 6, a dynamic array or a list would be an overkill.
       */
  #define MAX_COMPLEX_ATTACHED 6
      struct ddraw_surface *complex_array[MAX_COMPLEX_ATTACHED];
      /* You can't traverse the tree upwards. Only a flag for Surface::Release because it's needed there,
       * but no pointer to prevent temptations to traverse it in the wrong direction.
       */
      BOOL                    is_complex_root;
      BOOL is_lost;
  
      /* Surface description, for GetAttachedSurface */
      DDSURFACEDESC2          surface_desc;
  
      /* Clipper objects */
      struct ddraw_clipper *clipper;
      struct ddraw_palette *palette;
  
      /* For the ddraw surface list */
      struct list             surface_list_entry;
  
      DWORD                   Handle;
      HDC dc;
  };
  
  struct ddraw_texture
  {
      unsigned int version;
      DDSURFACEDESC2 surface_desc;
  
      struct ddraw_surface *root;
      struct wined3d_device *wined3d_device;
  };
  
  HRESULT ddraw_surface_create(struct ddraw *ddraw, const DDSURFACEDESC2 *surface_desc,
          struct ddraw_surface **surface, IUnknown *outer_unknown, unsigned int version) DECLSPEC_HIDDEN;
  struct wined3d_rendertarget_view *ddraw_surface_get_rendertarget_view(struct ddraw_surface *surface) DECLSPEC_HIDDEN;
  void ddraw_surface_init(struct ddraw_surface *surface, struct ddraw *ddraw,
          struct wined3d_texture *wined3d_texture, unsigned int sub_resource_idx,
          const struct wined3d_parent_ops **parent_ops) DECLSPEC_HIDDEN;
  HRESULT ddraw_surface_update_frontbuffer(struct ddraw_surface *surface,
          const RECT *rect, BOOL read, unsigned int swap_interval) DECLSPEC_HIDDEN;
  
  static inline struct ddraw_surface *impl_from_IDirect3DTexture(IDirect3DTexture *iface)
  {
      return CONTAINING_RECORD(iface, struct ddraw_surface, IDirect3DTexture_iface);
  }
  
  static inline struct ddraw_surface *impl_from_IDirect3DTexture2(IDirect3DTexture2 *iface)
  {
      return CONTAINING_RECORD(iface, struct ddraw_surface, IDirect3DTexture2_iface);
  }
  
  static inline struct ddraw_surface *impl_from_IDirectDrawSurface(IDirectDrawSurface *iface)
  {
      return CONTAINING_RECORD(iface, struct ddraw_surface, IDirectDrawSurface_iface);
  }
  
  static inline struct ddraw_surface *impl_from_IDirectDrawSurface2(IDirectDrawSurface2 *iface)
  {
      return CONTAINING_RECORD(iface, struct ddraw_surface, IDirectDrawSurface2_iface);
  }
  
  static inline struct ddraw_surface *impl_from_IDirectDrawSurface3(IDirectDrawSurface3 *iface)
  {
      return CONTAINING_RECORD(iface, struct ddraw_surface, IDirectDrawSurface3_iface);
  }
  
  static inline struct ddraw_surface *impl_from_IDirectDrawSurface4(IDirectDrawSurface4 *iface)
  {
      return CONTAINING_RECORD(iface, struct ddraw_surface, IDirectDrawSurface4_iface);
  }
  
  static inline struct ddraw_surface *impl_from_IDirectDrawSurface7(IDirectDrawSurface7 *iface)
  {
      return CONTAINING_RECORD(iface, struct ddraw_surface, IDirectDrawSurface7_iface);
  }
  
  struct ddraw_surface *unsafe_impl_from_IDirectDrawSurface(IDirectDrawSurface *iface) DECLSPEC_HIDDEN;
  struct ddraw_surface *unsafe_impl_from_IDirectDrawSurface4(IDirectDrawSurface4 *iface) DECLSPEC_HIDDEN;
  struct ddraw_surface *unsafe_impl_from_IDirectDrawSurface7(IDirectDrawSurface7 *iface) DECLSPEC_HIDDEN;
  
  struct ddraw_surface *unsafe_impl_from_IDirect3DTexture(IDirect3DTexture *iface) DECLSPEC_HIDDEN;
  struct ddraw_surface *unsafe_impl_from_IDirect3DTexture2(IDirect3DTexture2 *iface) DECLSPEC_HIDDEN;
  
  #define DDRAW_INVALID_HANDLE ~0U
  
  enum ddraw_handle_type
  {
      DDRAW_HANDLE_FREE,
      DDRAW_HANDLE_MATERIAL,
      DDRAW_HANDLE_MATRIX,
      DDRAW_HANDLE_STATEBLOCK,
      DDRAW_HANDLE_SURFACE,
  };
  
  struct ddraw_handle_entry
  {
      void *object;
      enum ddraw_handle_type type;
  };
  
  struct ddraw_handle_table
  {
      struct ddraw_handle_entry *entries;
      struct ddraw_handle_entry *free_entries;
      UINT table_size;
      UINT entry_count;
  };
  
  BOOL ddraw_handle_table_init(struct ddraw_handle_table *t, UINT initial_size) DECLSPEC_HIDDEN;
  void ddraw_handle_table_destroy(struct ddraw_handle_table *t) DECLSPEC_HIDDEN;
  DWORD ddraw_allocate_handle(struct ddraw_handle_table *t, void *object, enum ddraw_handle_type type) DECLSPEC_HIDDEN;
  void *ddraw_free_handle(struct ddraw_handle_table *t, DWORD handle, enum ddraw_handle_type type) DECLSPEC_HIDDEN;
  void *ddraw_get_object(struct ddraw_handle_table *t, DWORD handle, enum ddraw_handle_type type) DECLSPEC_HIDDEN;
  
  struct d3d_device
  {
      /* IUnknown */
      IDirect3DDevice7 IDirect3DDevice7_iface;
      IDirect3DDevice3 IDirect3DDevice3_iface;
      IDirect3DDevice2 IDirect3DDevice2_iface;
      IDirect3DDevice IDirect3DDevice_iface;
      IUnknown IUnknown_inner;
      LONG ref;
      UINT version;
      BOOL hw;
  
      IUnknown *outer_unknown;
      struct wined3d_device *wined3d_device;
      struct ddraw *ddraw;
      IUnknown *rt_iface;
  
      struct wined3d_buffer *index_buffer;
      UINT index_buffer_size;
      UINT index_buffer_pos;
  
      struct wined3d_buffer *vertex_buffer;
      UINT vertex_buffer_size;
      UINT vertex_buffer_pos;
  
      /* Viewport management */
      struct list viewport_list;
      struct d3d_viewport *current_viewport;
      D3DVIEWPORT7 active_viewport;
  
      /* Required to keep track which of two available texture blending modes in d3ddevice3 is used */
      BOOL legacyTextureBlending;
  
      D3DMATRIX legacy_projection;
      D3DMATRIX legacy_clipspace;
  
      /* Light state */
      DWORD material;
  
      /* Rendering functions to wrap D3D(1-3) to D3D7 */
      D3DPRIMITIVETYPE primitive_type;
      DWORD vertex_type;
      DWORD render_flags;
      DWORD nb_vertices;
      BYTE *sysmem_vertex_buffer;
      DWORD vertex_size;
      DWORD buffer_size;
  
      /* Handle management */
      struct ddraw_handle_table handle_table;
      D3DMATRIXHANDLE          world, proj, view;
  
      struct wined3d_vec4 user_clip_planes[D3DMAXUSERCLIPPLANES];
  };
  
  HRESULT d3d_device_create(struct ddraw *ddraw, const GUID *guid, struct ddraw_surface *target, IUnknown *rt_iface,
          UINT version, struct d3d_device **device, IUnknown *outer_unknown) DECLSPEC_HIDDEN;
  enum wined3d_depth_buffer_type d3d_device_update_depth_stencil(struct d3d_device *device) DECLSPEC_HIDDEN;
  
  /* The IID */
  extern const GUID IID_D3DDEVICE_WineD3D DECLSPEC_HIDDEN;
  
  static inline struct d3d_device *impl_from_IDirect3DDevice(IDirect3DDevice *iface)
  {
      return CONTAINING_RECORD(iface, struct d3d_device, IDirect3DDevice_iface);
  }
  
  static inline struct d3d_device *impl_from_IDirect3DDevice2(IDirect3DDevice2 *iface)
  {
      return CONTAINING_RECORD(iface, struct d3d_device, IDirect3DDevice2_iface);
  }
  
  static inline struct d3d_device *impl_from_IDirect3DDevice3(IDirect3DDevice3 *iface)
  {
      return CONTAINING_RECORD(iface, struct d3d_device, IDirect3DDevice3_iface);
  }
  
  static inline struct d3d_device *impl_from_IDirect3DDevice7(IDirect3DDevice7 *iface)
  {
      return CONTAINING_RECORD(iface, struct d3d_device, IDirect3DDevice7_iface);
  }
  
  struct d3d_device *unsafe_impl_from_IDirect3DDevice(IDirect3DDevice *iface) DECLSPEC_HIDDEN;
  struct d3d_device *unsafe_impl_from_IDirect3DDevice2(IDirect3DDevice2 *iface) DECLSPEC_HIDDEN;
  struct d3d_device *unsafe_impl_from_IDirect3DDevice3(IDirect3DDevice3 *iface) DECLSPEC_HIDDEN;
  struct d3d_device *unsafe_impl_from_IDirect3DDevice7(IDirect3DDevice7 *iface) DECLSPEC_HIDDEN;
  
  struct ddraw_clipper
  {
      IDirectDrawClipper IDirectDrawClipper_iface;
      LONG ref;
      HWND window;
      HRGN region;
      BOOL initialized;
  };
  
  HRESULT ddraw_clipper_init(struct ddraw_clipper *clipper) DECLSPEC_HIDDEN;
  struct ddraw_clipper *unsafe_impl_from_IDirectDrawClipper(IDirectDrawClipper *iface) DECLSPEC_HIDDEN;
  
  /*****************************************************************************
   * IDirectDrawPalette implementation structure
   *****************************************************************************/
  struct ddraw_palette
  {
      /* IUnknown fields */
      IDirectDrawPalette IDirectDrawPalette_iface;
      LONG ref;
  
      struct wined3d_palette *wined3d_palette;
      struct ddraw *ddraw;
      IUnknown *ifaceToRelease;
      DWORD flags;
  };
  
  static inline struct ddraw_palette *impl_from_IDirectDrawPalette(IDirectDrawPalette *iface)
  {
      return CONTAINING_RECORD(iface, struct ddraw_palette, IDirectDrawPalette_iface);
  }
  
  struct ddraw_palette *unsafe_impl_from_IDirectDrawPalette(IDirectDrawPalette *iface) DECLSPEC_HIDDEN;
  
  HRESULT ddraw_palette_init(struct ddraw_palette *palette,
          struct ddraw *ddraw, DWORD flags, PALETTEENTRY *entries) DECLSPEC_HIDDEN;
  
  /* Helper structures */
  struct object_creation_info
  {
      const CLSID *clsid;
      HRESULT (*pfnCreateInstance)(IUnknown *pUnkOuter, REFIID riid,
                                   void **ppObj);
  };
  
  /******************************************************************************
   * IDirect3DLight implementation structure - Wraps to D3D7
   ******************************************************************************/
  struct d3d_light
  {
      IDirect3DLight IDirect3DLight_iface;
      LONG ref;
  
      /* IDirect3DLight fields */
      struct ddraw *ddraw;
  
      /* If this light is active for one viewport, put the viewport here */
      struct d3d_viewport *active_viewport;
  
      D3DLIGHT2 light;
      D3DLIGHT7 light7;
  
      DWORD dwLightIndex;
  
      struct list entry;
  };
  
  /* Helper functions */
  void light_activate(struct d3d_light *light) DECLSPEC_HIDDEN;
  void light_deactivate(struct d3d_light *light) DECLSPEC_HIDDEN;
  void d3d_light_init(struct d3d_light *light, struct ddraw *ddraw) DECLSPEC_HIDDEN;
  struct d3d_light *unsafe_impl_from_IDirect3DLight(IDirect3DLight *iface) DECLSPEC_HIDDEN;
  
  /******************************************************************************
   * IDirect3DMaterial implementation structure - Wraps to D3D7
   ******************************************************************************/
  struct d3d_material
  {
      IDirect3DMaterial3 IDirect3DMaterial3_iface;
      IDirect3DMaterial2 IDirect3DMaterial2_iface;
      IDirect3DMaterial IDirect3DMaterial_iface;
      LONG  ref;
  
      /* IDirect3DMaterial2 fields */
      struct ddraw *ddraw;
      struct d3d_device *active_device;
  
      D3DMATERIAL mat;
      DWORD Handle;
  };
  
  /* Helper functions */
  void material_activate(struct d3d_material *material) DECLSPEC_HIDDEN;
  struct d3d_material *d3d_material_create(struct ddraw *ddraw) DECLSPEC_HIDDEN;
  
  enum ddraw_viewport_version
  {
      DDRAW_VIEWPORT_VERSION_NONE,
      DDRAW_VIEWPORT_VERSION_1,
      DDRAW_VIEWPORT_VERSION_2,
  };
  
  /*****************************************************************************
   * IDirect3DViewport - Wraps to D3D7
   *****************************************************************************/
  struct d3d_viewport
  {
      IDirect3DViewport3 IDirect3DViewport3_iface;
      LONG ref;
  
      /* IDirect3DViewport fields */
      struct ddraw *ddraw;
  
      /* If this viewport is active for one device, put the device here */
      struct d3d_device *active_device;
  
      DWORD                     num_lights;
      DWORD                     map_lights;
  
      enum ddraw_viewport_version version;
  
      union
      {
          D3DVIEWPORT vp1;
          D3DVIEWPORT2 vp2;
      } viewports;
  
      struct list entry;
      struct list light_list;
      struct d3d_material *background;
  };
  
  struct d3d_viewport *unsafe_impl_from_IDirect3DViewport3(IDirect3DViewport3 *iface) DECLSPEC_HIDDEN;
  struct d3d_viewport *unsafe_impl_from_IDirect3DViewport2(IDirect3DViewport2 *iface) DECLSPEC_HIDDEN;
  struct d3d_viewport *unsafe_impl_from_IDirect3DViewport(IDirect3DViewport *iface) DECLSPEC_HIDDEN;
  
  /* Helper functions */
  void viewport_activate(struct d3d_viewport *viewport, BOOL ignore_lights) DECLSPEC_HIDDEN;
  void d3d_viewport_init(struct d3d_viewport *viewport, struct ddraw *ddraw) DECLSPEC_HIDDEN;
  
  /*****************************************************************************
   * IDirect3DExecuteBuffer - Wraps to D3D7
   *****************************************************************************/
  struct d3d_execute_buffer
  {
      IDirect3DExecuteBuffer IDirect3DExecuteBuffer_iface;
      LONG ref;
      /* IDirect3DExecuteBuffer fields */
      struct ddraw *ddraw;
      struct d3d_device *d3ddev;
  
      D3DEXECUTEBUFFERDESC desc;
      D3DEXECUTEDATA       data;
  
      /* This buffer will store the transformed vertices */
      unsigned int         index_size, index_pos;
      unsigned int         vertex_size, src_vertex_pos;
      struct wined3d_buffer *src_vertex_buffer, *dst_vertex_buffer, *index_buffer;
  
      /* This flags is set to TRUE if we allocated ourselves the
       * data buffer
       */
      BOOL                 need_free;
  };
  
  HRESULT d3d_execute_buffer_init(struct d3d_execute_buffer *execute_buffer,
          struct d3d_device *device, D3DEXECUTEBUFFERDESC *desc) DECLSPEC_HIDDEN;
  struct d3d_execute_buffer *unsafe_impl_from_IDirect3DExecuteBuffer(IDirect3DExecuteBuffer *iface) DECLSPEC_HIDDEN;
  
  /* The execute function */
  HRESULT d3d_execute_buffer_execute(struct d3d_execute_buffer *execute_buffer,
          struct d3d_device *device, struct d3d_viewport *viewport) DECLSPEC_HIDDEN;
  
  /*****************************************************************************
   * IDirect3DVertexBuffer
   *****************************************************************************/
  struct d3d_vertex_buffer
  {
      IDirect3DVertexBuffer7 IDirect3DVertexBuffer7_iface;
      LONG ref;
      unsigned int version;
  
      /*** WineD3D and ddraw links ***/
      struct wined3d_buffer *wined3d_buffer;
      struct wined3d_vertex_declaration *wined3d_declaration;
      struct ddraw *ddraw;
  
      /*** Storage for D3D7 specific things ***/
      DWORD                Caps;
      DWORD                fvf;
      DWORD                size;
      BOOL                 dynamic;
  };
  
  HRESULT d3d_vertex_buffer_create(struct d3d_vertex_buffer **buffer, struct ddraw *ddraw,
          D3DVERTEXBUFFERDESC *desc) DECLSPEC_HIDDEN;
  struct d3d_vertex_buffer *unsafe_impl_from_IDirect3DVertexBuffer(IDirect3DVertexBuffer *iface) DECLSPEC_HIDDEN;
  struct d3d_vertex_buffer *unsafe_impl_from_IDirect3DVertexBuffer7(IDirect3DVertexBuffer7 *iface) DECLSPEC_HIDDEN;
  
  /*****************************************************************************
   * Helper functions from utils.c
   *****************************************************************************/
  
  #define GET_TEXCOUNT_FROM_FVF(d3dvtVertexType) \
      (((d3dvtVertexType) & D3DFVF_TEXCOUNT_MASK) >> D3DFVF_TEXCOUNT_SHIFT)
  
  #define GET_TEXCOORD_SIZE_FROM_FVF(d3dvtVertexType, tex_num) \
      (((((d3dvtVertexType) >> (16 + (2 * (tex_num)))) + 1) & 0x03) + 1)
  
  void ddrawformat_from_wined3dformat(DDPIXELFORMAT *ddraw_format,
          enum wined3d_format_id wined3d_format) DECLSPEC_HIDDEN;
  BOOL wined3d_colour_from_ddraw_colour(const DDPIXELFORMAT *pf, const struct ddraw_palette *palette,
          DWORD colour, struct wined3d_color *wined3d_colour) DECLSPEC_HIDDEN;
  enum wined3d_format_id wined3dformat_from_ddrawformat(const DDPIXELFORMAT *format) DECLSPEC_HIDDEN;
  unsigned int wined3dmapflags_from_ddrawmapflags(unsigned int flags) DECLSPEC_HIDDEN;
  void DDRAW_dump_surface_desc(const DDSURFACEDESC2 *lpddsd) DECLSPEC_HIDDEN;
  void dump_D3DMATRIX(const D3DMATRIX *mat) DECLSPEC_HIDDEN;
  void DDRAW_dump_DDCAPS(const DDCAPS *lpcaps) DECLSPEC_HIDDEN;
  DWORD get_flexible_vertex_size(DWORD d3dvtVertexType) DECLSPEC_HIDDEN;
  void DDRAW_dump_DDSCAPS2(const DDSCAPS2 *in) DECLSPEC_HIDDEN;
  void DDRAW_dump_cooperativelevel(DWORD cooplevel) DECLSPEC_HIDDEN;
  void DDSD_to_DDSD2(const DDSURFACEDESC *in, DDSURFACEDESC2 *out) DECLSPEC_HIDDEN;
  void DDSD2_to_DDSD(const DDSURFACEDESC2 *in, DDSURFACEDESC *out) DECLSPEC_HIDDEN;
  
  void multiply_matrix(D3DMATRIX *dst, const D3DMATRIX *src1, const D3DMATRIX *src2) DECLSPEC_HIDDEN;
  
  static inline BOOL format_is_compressed(const DDPIXELFORMAT *format)
  {
      return (format->dwFlags & DDPF_FOURCC) && (format->dwFourCC == WINED3DFMT_DXT1
              || format->dwFourCC == WINED3DFMT_DXT2 || format->dwFourCC == WINED3DFMT_DXT3
              || format->dwFourCC == WINED3DFMT_DXT4 || format->dwFourCC == WINED3DFMT_DXT5);
  }
  
  static inline BOOL format_is_paletteindexed(const DDPIXELFORMAT *fmt)
  {
      DWORD flags = DDPF_PALETTEINDEXED1 | DDPF_PALETTEINDEXED2 | DDPF_PALETTEINDEXED4
              | DDPF_PALETTEINDEXED8 | DDPF_PALETTEINDEXEDTO8;
      return !!(fmt->dwFlags & flags);
  }
  
  /* Used for generic dumping */
  struct flag_info
  {
      DWORD val;
      const char *name;
  };
  
  #define FE(x) { x, #x }
  
  struct member_info
  {
      DWORD val;
      const char *name;
      void (*func)(const void *);
      ptrdiff_t offset;
  };
  
  /* Structure copy */
  #define ME(x,f,e) { x, #x, (void (*)(const void *))(f), offsetof(STRUCT, e) }
  
  #define DD_STRUCT_COPY_BYSIZE_(to,from,to_size,from_size)         \
      do {                                                          \
          DWORD __size = (to)->dwSize;                              \
          DWORD __resetsize = min(to_size, sizeof(*to));            \
          DWORD __copysize = min(__resetsize, from_size);           \
          assert(to != from);                                       \
          memcpy(to, from, __copysize);                             \
          memset((char*)(to) + __copysize, 0, __resetsize - __copysize); \
          (to)->dwSize = __size; /* restore size */                 \
      } while (0)
  
  #define DD_STRUCT_COPY_BYSIZE(to,from) DD_STRUCT_COPY_BYSIZE_(to,from,(to)->dwSize,(from)->dwSize)
  
  HRESULT hr_ddraw_from_wined3d(HRESULT hr) DECLSPEC_HIDDEN;
  
  #endif
  