wined3d_private.h

这是一个开放源代码的与WINNT/WIN2K/WIN2003兼容的操作系统

    const IWineD3DVtbl     *lpVtbl;
    LONG                    ref;     /* Note: Ref counting not required */

    /* WineD3D Information */
    IUnknown               *parent;
    UINT                    dxVersion;
} IWineD3DImpl;

extern const IWineD3DVtbl IWineD3D_Vtbl;

/* TODO: setup some flags in the registry to enable, disable pbuffer support
(since it will break quite a few things until contexts are managed properly!) */
extern BOOL pbuffer_support;
/* allocate one pbuffer per surface */
extern BOOL pbuffer_per_surface;

typedef struct ResourceList {
    IWineD3DResource         *resource;
    struct ResourceList      *next;
} ResourceList;

/* A helper function that dumps a resource list */
void dumpResources(ResourceList *resources);

/*****************************************************************************
 * IWineD3DDevice implementation structure
 */
struct IWineD3DDeviceImpl
{
    /* IUnknown fields      */
    const IWineD3DDeviceVtbl *lpVtbl;
    LONG                    ref;     /* Note: Ref counting not required */

    /* WineD3D Information  */
    IUnknown               *parent;
    IWineD3D               *wineD3D;
    struct WineD3DAdapter  *adapter;

    /* Window styles to restore when switching fullscreen mode */
    LONG                    style;
    LONG                    exStyle;

    /* X and GL Information */
    GLint                   maxConcurrentLights;
    GLenum                  offscreenBuffer;

    /* Selected capabilities */
    int vs_selected_mode;
    int ps_selected_mode;
    const shader_backend_t *shader_backend;
    hash_table_t *glsl_program_lookup;

    /* To store */
    BOOL                    view_ident;        /* true iff view matrix is identity                */
    BOOL                    untransformed;
    BOOL                    vertexBlendUsed;   /* To avoid needless setting of the blend matrices */
    unsigned char           surface_alignment; /* Line Alignment of surfaces                      */

    /* State block related */
    BOOL                    isRecordingState;
    IWineD3DStateBlockImpl *stateBlock;
    IWineD3DStateBlockImpl *updateStateBlock;
    BOOL                   isInDraw;

    /* Internal use fields  */
    WINED3DDEVICE_CREATION_PARAMETERS createParms;
    UINT                            adapterNo;
    WINED3DDEVTYPE                  devType;

    IWineD3DSwapChain     **swapchains;
    UINT                    NumberOfSwapChains;

    ResourceList           *resources; /* a linked list to track resources created by the device */

    /* Render Target Support */
    IWineD3DSurface       **render_targets;
    IWineD3DSurface        *depthStencilBuffer;
    IWineD3DSurface       **fbo_color_attachments;
    IWineD3DSurface        *fbo_depth_attachment;

    IWineD3DSurface        *stencilBufferTarget;

    /* Caches to avoid unneeded context changes */
    IWineD3DSurface        *lastActiveRenderTarget;
    IWineD3DSwapChain      *lastActiveSwapChain;

    /* palettes texture management */
    PALETTEENTRY            palettes[MAX_PALETTES][256];
    UINT                    currentPalette;

    /* For rendering to a texture using glCopyTexImage */
    BOOL                    render_offscreen;
    WINED3D_DEPTHCOPYSTATE  depth_copy_state;
    GLuint                  fbo;
    GLuint                  src_fbo;
    GLuint                  dst_fbo;
    GLenum                  *draw_buffers;

    /* Cursor management */
    BOOL                    bCursorVisible;
    UINT                    xHotSpot;
    UINT                    yHotSpot;
    UINT                    xScreenSpace;
    UINT                    yScreenSpace;
    UINT                    cursorWidth, cursorHeight;
    GLuint                  cursorTexture;
    BOOL                    haveHardwareCursor;
    HCURSOR                 hardwareCursor;

    /* Textures for when no other textures are mapped */
    UINT                          dummyTextureName[MAX_TEXTURES];

    /* Debug stream management */
    BOOL                     debug;

    /* Device state management */
    HRESULT                 state;
    BOOL                    d3d_initialized;

    /* A flag to check for proper BeginScene / EndScene call pairs */
    BOOL inScene;

    /* process vertex shaders using software or hardware */
    BOOL softwareVertexProcessing;

    /* DirectDraw stuff */
    HWND ddraw_window;
    IWineD3DSurface *ddraw_primary;
    DWORD ddraw_width, ddraw_height;
    WINED3DFORMAT ddraw_format;
    BOOL ddraw_fullscreen;

    /* Final position fixup constant */
    float                       posFixup[4];

    /* With register combiners we can skip junk texture stages */
    DWORD                     texUnitMap[MAX_COMBINED_SAMPLERS];
    DWORD                     rev_tex_unit_map[MAX_COMBINED_SAMPLERS];
    BOOL                      fixed_function_usage_map[MAX_TEXTURES];

    /* Stream source management */
    WineDirect3DVertexStridedData strided_streams;
    WineDirect3DVertexStridedData *up_strided;
    BOOL                      useDrawStridedSlow;
    BOOL                      instancedDraw;

    /* Context management */
    WineD3DContext          **contexts;                  /* Dynamic array containing pointers to context structures */
    WineD3DContext          *activeContext;
    DWORD                   lastThread;
    UINT                    numContexts;
    WineD3DContext          *pbufferContext;             /* The context that has a pbuffer as drawable */
    DWORD                   pbufferWidth, pbufferHeight; /* Size of the buffer drawable */

    /* High level patch management */
#define PATCHMAP_SIZE 43
#define PATCHMAP_HASHFUNC(x) ((x) % PATCHMAP_SIZE) /* Primitive and simple function */
    struct list             patches[PATCHMAP_SIZE];
    struct WineD3DRectPatch *currentPatch;
};

extern const IWineD3DDeviceVtbl IWineD3DDevice_Vtbl;

void IWineD3DDeviceImpl_FindTexUnitMap(IWineD3DDeviceImpl *This);
void IWineD3DDeviceImpl_MarkStateDirty(IWineD3DDeviceImpl *This, DWORD state);
static inline BOOL isStateDirty(WineD3DContext *context, DWORD state) {
    DWORD idx = state >> 5;
    BYTE shift = state & 0x1f;
    return context->isStateDirty[idx] & (1 << shift);
}

/* Support for IWineD3DResource ::Set/Get/FreePrivateData. */
typedef struct PrivateData
{
    struct list entry;

    GUID tag;
    DWORD flags; /* DDSPD_* */
    DWORD uniqueness_value;

    union
    {
        LPVOID data;
        LPUNKNOWN object;
    } ptr;

    DWORD size;
} PrivateData;

/*****************************************************************************
 * IWineD3DResource implementation structure
 */
typedef struct IWineD3DResourceClass
{
    /* IUnknown fields */
    LONG                    ref;     /* Note: Ref counting not required */

    /* WineD3DResource Information */
    IUnknown               *parent;
    WINED3DRESOURCETYPE     resourceType;
    IWineD3DDeviceImpl     *wineD3DDevice;
    WINED3DPOOL             pool;
    UINT                    size;
    DWORD                   usage;
    WINED3DFORMAT           format;
    BYTE                   *allocatedMemory;
    struct list             privateData;

} IWineD3DResourceClass;

typedef struct IWineD3DResourceImpl
{
    /* IUnknown & WineD3DResource Information     */
    const IWineD3DResourceVtbl *lpVtbl;
    IWineD3DResourceClass   resource;
} IWineD3DResourceImpl;


/*****************************************************************************
 * IWineD3DVertexBuffer implementation structure (extends IWineD3DResourceImpl)
 */
typedef struct IWineD3DVertexBufferImpl
{
    /* IUnknown & WineD3DResource Information     */
    const IWineD3DVertexBufferVtbl *lpVtbl;
    IWineD3DResourceClass     resource;

    /* WineD3DVertexBuffer specifics */
    DWORD                     fvf;

    /* Vertex buffer object support */
    GLuint                    vbo;
    BYTE                      Flags;
    LONG                      bindCount;

    UINT                      dirtystart, dirtyend;
    LONG                      lockcount;

    LONG                      declChanges, draws;
    /* Last description of the buffer */
    WineDirect3DVertexStridedData strided;
} IWineD3DVertexBufferImpl;

extern const IWineD3DVertexBufferVtbl IWineD3DVertexBuffer_Vtbl;

#define VBFLAG_LOAD           0x01    /* Data is written from allocatedMemory to the VBO */
#define VBFLAG_OPTIMIZED      0x02    /* Optimize has been called for the VB */
#define VBFLAG_DIRTY          0x04    /* Buffer data has been modified */
#define VBFLAG_HASDESC        0x08    /* A vertex description has been found */
#define VBFLAG_VBOCREATEFAIL  0x10    /* An attempt to create a vbo has failed */

/*****************************************************************************
 * IWineD3DIndexBuffer implementation structure (extends IWineD3DResourceImpl)
 */
typedef struct IWineD3DIndexBufferImpl
{
    /* IUnknown & WineD3DResource Information     */
    const IWineD3DIndexBufferVtbl *lpVtbl;
    IWineD3DResourceClass     resource;

    GLuint                    vbo;
    UINT                      dirtystart, dirtyend;
    LONG                      lockcount;

    /* WineD3DVertexBuffer specifics */
} IWineD3DIndexBufferImpl;

extern const IWineD3DIndexBufferVtbl IWineD3DIndexBuffer_Vtbl;

/*****************************************************************************
 * IWineD3DBaseTexture D3D- > openGL state map lookups
 */
#define WINED3DFUNC_NOTSUPPORTED  -2
#define WINED3DFUNC_UNIMPLEMENTED -1

typedef enum winetexturestates {
    WINED3DTEXSTA_ADDRESSU       = 0,
    WINED3DTEXSTA_ADDRESSV       = 1,
    WINED3DTEXSTA_ADDRESSW       = 2,
    WINED3DTEXSTA_BORDERCOLOR    = 3,
    WINED3DTEXSTA_MAGFILTER      = 4,
    WINED3DTEXSTA_MINFILTER      = 5,
    WINED3DTEXSTA_MIPFILTER      = 6,
    WINED3DTEXSTA_MAXMIPLEVEL    = 7,
    WINED3DTEXSTA_MAXANISOTROPY  = 8,
    WINED3DTEXSTA_SRGBTEXTURE    = 9,
    WINED3DTEXSTA_ELEMENTINDEX   = 10,
    WINED3DTEXSTA_DMAPOFFSET     = 11,
    WINED3DTEXSTA_TSSADDRESSW    = 12,
    MAX_WINETEXTURESTATES        = 13,
} winetexturestates;

/*****************************************************************************
 * IWineD3DBaseTexture implementation structure (extends IWineD3DResourceImpl)
 */
typedef struct IWineD3DBaseTextureClass
{
    UINT                    levels;
    BOOL                    dirty;
    UINT                    textureName;
    UINT                    LOD;
    WINED3DTEXTUREFILTERTYPE filterType;
    DWORD                   states[MAX_WINETEXTURESTATES];
    LONG                    bindCount;
    DWORD                   sampler;
    BOOL                    is_srgb;
    UINT                    srgb_mode_change_count;
} IWineD3DBaseTextureClass;

typedef struct IWineD3DBaseTextureImpl
{
    /* IUnknown & WineD3DResource Information     */
    const IWineD3DBaseTextureVtbl *lpVtbl;