/********************************************************** * Copyright 2008-2009 VMware, Inc. All rights reserved. * * Permission is hereby granted, free of charge, to any person * obtaining a copy of this software and associated documentation * files (the "Software"), to deal in the Software without * restriction, including without limitation the rights to use, copy, * modify, merge, publish, distribute, sublicense, and/or sell copies * of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. * **********************************************************/ /** * @file * VMware SVGA specific winsys interface. * * @author Jose Fonseca * * Documentation taken from the VMware SVGA DDK. */ #ifndef SVGA_WINSYS_H_ #define SVGA_WINSYS_H_ #include "svga_types.h" #include "svga3d_types.h" #include "svga_reg.h" #include "svga3d_reg.h" #include "pipe/p_compiler.h" #include "pipe/p_defines.h" #include "svga_mksstats.h" struct svga_winsys_screen; struct svga_winsys_buffer; struct pipe_screen; struct pipe_context; struct pipe_debug_callback; struct pipe_fence_handle; struct pipe_resource; struct svga_region; struct winsys_handle; #define SVGA_BUFFER_USAGE_PINNED (1 << 0) #define SVGA_BUFFER_USAGE_WRAPPED (1 << 1) #define SVGA_BUFFER_USAGE_SHADER (1 << 2) /** * Relocation flags to help with dirty tracking * SVGA_RELOC_WRITE - The command will cause a GPU write to this * resource. * SVGA_RELOC_READ - The command will cause a GPU read from this * resource. * SVGA_RELOC_INTERNAL The command will only transfer data internally * within the resource, and optionally clear * dirty bits * SVGA_RELOC_DMA - Only set for resource buffer DMA uploads for winsys * implementations that want to track the amount * of such data referenced in the command stream. */ #define SVGA_RELOC_WRITE (1 << 0) #define SVGA_RELOC_READ (1 << 1) #define SVGA_RELOC_INTERNAL (1 << 2) #define SVGA_RELOC_DMA (1 << 3) #define SVGA_FENCE_FLAG_EXEC (1 << 0) #define SVGA_FENCE_FLAG_QUERY (1 << 1) #define SVGA_SURFACE_USAGE_SHARED (1 << 0) #define SVGA_SURFACE_USAGE_SCANOUT (1 << 1) #define SVGA_QUERY_FLAG_SET (1 << 0) #define SVGA_QUERY_FLAG_REF (1 << 1) #define SVGA_HINT_FLAG_CAN_PRE_FLUSH (1 << 0) /* Can preemptively flush */ #define SVGA_HINT_FLAG_EXPORT_FENCE_FD (1 << 1) /* Export a Fence FD */ /** * SVGA mks statistics info */ struct svga_winsys_stats_timeframe { void *counterTime; uint64 startTime; uint64 adjustedStartTime; struct svga_winsys_stats_timeframe *enclosing; }; enum svga_stats_count { SVGA_STATS_COUNT_BLENDSTATE, SVGA_STATS_COUNT_BLITBLITTERCOPY, SVGA_STATS_COUNT_DEPTHSTENCILSTATE, SVGA_STATS_COUNT_RASTERIZERSTATE, SVGA_STATS_COUNT_SAMPLER, SVGA_STATS_COUNT_SAMPLERVIEW, SVGA_STATS_COUNT_SURFACEWRITEFLUSH, SVGA_STATS_COUNT_TEXREADBACK, SVGA_STATS_COUNT_VERTEXELEMENT, SVGA_STATS_COUNT_MAX }; enum svga_stats_time { SVGA_STATS_TIME_BLIT, SVGA_STATS_TIME_BLITBLITTER, SVGA_STATS_TIME_BLITFALLBACK, SVGA_STATS_TIME_BUFFERSFLUSH, SVGA_STATS_TIME_BUFFERTRANSFERMAP, SVGA_STATS_TIME_BUFFERTRANSFERUNMAP, SVGA_STATS_TIME_CONTEXTFINISH, SVGA_STATS_TIME_CONTEXTFLUSH, SVGA_STATS_TIME_COPYREGION, SVGA_STATS_TIME_COPYREGIONFALLBACK, SVGA_STATS_TIME_CREATEBACKEDSURFACEVIEW, SVGA_STATS_TIME_CREATEBUFFER, SVGA_STATS_TIME_CREATECONTEXT, SVGA_STATS_TIME_CREATEFS, SVGA_STATS_TIME_CREATEGS, SVGA_STATS_TIME_CREATESURFACE, SVGA_STATS_TIME_CREATESURFACEVIEW, SVGA_STATS_TIME_CREATETEXTURE, SVGA_STATS_TIME_CREATEVS, SVGA_STATS_TIME_DEFINESHADER, SVGA_STATS_TIME_DESTROYSURFACE, SVGA_STATS_TIME_DRAWVBO, SVGA_STATS_TIME_DRAWARRAYS, SVGA_STATS_TIME_DRAWELEMENTS, SVGA_STATS_TIME_EMITFS, SVGA_STATS_TIME_EMITGS, SVGA_STATS_TIME_EMITVS, SVGA_STATS_TIME_EMULATESURFACEVIEW, SVGA_STATS_TIME_FENCEFINISH, SVGA_STATS_TIME_GENERATEINDICES, SVGA_STATS_TIME_HWTNLDRAWARRAYS, SVGA_STATS_TIME_HWTNLDRAWELEMENTS, SVGA_STATS_TIME_HWTNLFLUSH, SVGA_STATS_TIME_HWTNLPRIM, SVGA_STATS_TIME_PROPAGATESURFACE, SVGA_STATS_TIME_SETSAMPLERVIEWS, SVGA_STATS_TIME_SURFACEFLUSH, SVGA_STATS_TIME_SWTNLDRAWVBO, SVGA_STATS_TIME_SWTNLUPDATEDRAW, SVGA_STATS_TIME_SWTNLUPDATEVDECL, SVGA_STATS_TIME_TEXTRANSFERMAP, SVGA_STATS_TIME_TEXTRANSFERUNMAP, SVGA_STATS_TIME_TGSIVGPU10TRANSLATE, SVGA_STATS_TIME_TGSIVGPU9TRANSLATE, SVGA_STATS_TIME_UPDATESTATE, SVGA_STATS_TIME_VALIDATESURFACEVIEW, SVGA_STATS_TIME_VBUFDRAWARRAYS, SVGA_STATS_TIME_VBUFDRAWELEMENTS, SVGA_STATS_TIME_VBUFRENDERALLOCVERT, SVGA_STATS_TIME_VBUFRENDERMAPVERT, SVGA_STATS_TIME_VBUFRENDERUNMAPVERT, SVGA_STATS_TIME_VBUFSUBMITSTATE, SVGA_STATS_TIME_MAX }; #define SVGA_STATS_PREFIX "GuestGL_" #define SVGA_STATS_COUNT_NAMES \ SVGA_STATS_PREFIX "BlendState", \ SVGA_STATS_PREFIX "BlitBlitterCopy", \ SVGA_STATS_PREFIX "DepthStencilState", \ SVGA_STATS_PREFIX "RasterizerState", \ SVGA_STATS_PREFIX "Sampler", \ SVGA_STATS_PREFIX "SamplerView", \ SVGA_STATS_PREFIX "SurfaceWriteFlush", \ SVGA_STATS_PREFIX "TextureReadback", \ SVGA_STATS_PREFIX "VertexElement" \ #define SVGA_STATS_TIME_NAMES \ SVGA_STATS_PREFIX "Blit", \ SVGA_STATS_PREFIX "BlitBlitter", \ SVGA_STATS_PREFIX "BlitFallback", \ SVGA_STATS_PREFIX "BuffersFlush", \ SVGA_STATS_PREFIX "BufferTransferMap", \ SVGA_STATS_PREFIX "BufferTransferUnmap", \ SVGA_STATS_PREFIX "ContextFinish", \ SVGA_STATS_PREFIX "ContextFlush", \ SVGA_STATS_PREFIX "CopyRegion", \ SVGA_STATS_PREFIX "CopyRegionFallback", \ SVGA_STATS_PREFIX "CreateBackedSurfaceView", \ SVGA_STATS_PREFIX "CreateBuffer", \ SVGA_STATS_PREFIX "CreateContext", \ SVGA_STATS_PREFIX "CreateFS", \ SVGA_STATS_PREFIX "CreateGS", \ SVGA_STATS_PREFIX "CreateSurface", \ SVGA_STATS_PREFIX "CreateSurfaceView", \ SVGA_STATS_PREFIX "CreateTexture", \ SVGA_STATS_PREFIX "CreateVS", \ SVGA_STATS_PREFIX "DefineShader", \ SVGA_STATS_PREFIX "DestroySurface", \ SVGA_STATS_PREFIX "DrawVBO", \ SVGA_STATS_PREFIX "DrawArrays", \ SVGA_STATS_PREFIX "DrawElements", \ SVGA_STATS_PREFIX "EmitFS", \ SVGA_STATS_PREFIX "EmitGS", \ SVGA_STATS_PREFIX "EmitVS", \ SVGA_STATS_PREFIX "EmulateSurfaceView", \ SVGA_STATS_PREFIX "FenceFinish", \ SVGA_STATS_PREFIX "GenerateIndices", \ SVGA_STATS_PREFIX "HWtnlDrawArrays", \ SVGA_STATS_PREFIX "HWtnlDrawElements", \ SVGA_STATS_PREFIX "HWtnlFlush", \ SVGA_STATS_PREFIX "HWtnlPrim", \ SVGA_STATS_PREFIX "PropagateSurface", \ SVGA_STATS_PREFIX "SetSamplerViews", \ SVGA_STATS_PREFIX "SurfaceFlush", \ SVGA_STATS_PREFIX "SwtnlDrawVBO", \ SVGA_STATS_PREFIX "SwtnlUpdateDraw", \ SVGA_STATS_PREFIX "SwtnlUpdateVDecl", \ SVGA_STATS_PREFIX "TextureTransferMap", \ SVGA_STATS_PREFIX "TextureTransferUnmap", \ SVGA_STATS_PREFIX "TGSIVGPU10Translate", \ SVGA_STATS_PREFIX "TGSIVGPU9Translate", \ SVGA_STATS_PREFIX "UpdateState", \ SVGA_STATS_PREFIX "ValidateSurfaceView", \ SVGA_STATS_PREFIX "VbufDrawArrays", \ SVGA_STATS_PREFIX "VbufDrawElements", \ SVGA_STATS_PREFIX "VbufRenderAllocVertices", \ SVGA_STATS_PREFIX "VbufRenderMapVertices", \ SVGA_STATS_PREFIX "VbufRenderUnmapVertices", \ SVGA_STATS_PREFIX "VbufSubmitState" /** Opaque surface handle */ struct svga_winsys_surface; /** Opaque guest-backed objects */ struct svga_winsys_gb_shader; struct svga_winsys_gb_query; /** * SVGA per-context winsys interface. */ struct svga_winsys_context { void (*destroy)(struct svga_winsys_context *swc); void * (*reserve)(struct svga_winsys_context *swc, uint32_t nr_bytes, uint32_t nr_relocs ); /** * Returns current size of command buffer, in bytes. */ unsigned (*get_command_buffer_size)(struct svga_winsys_context *swc); /** * Emit a relocation for a host surface. * * @param flags bitmask of SVGA_RELOC_* flags * * NOTE: Order of this call does matter. It should be the same order * as relocations appear in the command buffer. */ void (*surface_relocation)(struct svga_winsys_context *swc, uint32 *sid, uint32 *mobid, struct svga_winsys_surface *surface, unsigned flags); /** * Emit a relocation for a guest memory region. * * @param flags bitmask of SVGA_RELOC_* flags * * NOTE: Order of this call does matter. It should be the same order * as relocations appear in the command buffer. */ void (*region_relocation)(struct svga_winsys_context *swc, struct SVGAGuestPtr *ptr, struct svga_winsys_buffer *buffer, uint32 offset, unsigned flags); /** * Emit a relocation for a guest-backed shader object. * * NOTE: Order of this call does matter. It should be the same order * as relocations appear in the command buffer. */ void (*shader_relocation)(struct svga_winsys_context *swc, uint32 *shid, uint32 *mobid, uint32 *offset, struct svga_winsys_gb_shader *shader, unsigned flags); /** * Emit a relocation for a guest-backed context. * * NOTE: Order of this call does matter. It should be the same order * as relocations appear in the command buffer. */ void (*context_relocation)(struct svga_winsys_context *swc, uint32 *cid); /** * Emit a relocation for a guest Memory OBject. * * @param flags bitmask of SVGA_RELOC_* flags * @param offset_into_mob Buffer starts at this offset into the MOB. * * Note that not all commands accept an offset into the MOB and * those commands can't use suballocated buffer pools. To trap * errors from improper buffer pool usage, set the offset_into_mob * pointer to NULL. */ void (*mob_relocation)(struct svga_winsys_context *swc, SVGAMobId *id, uint32 *offset_into_mob, struct svga_winsys_buffer *buffer, uint32 offset, unsigned flags); /** * Emit a relocation for a guest-backed query object. * * NOTE: Order of this call does matter. It should be the same order * as relocations appear in the command buffer. */ void (*query_relocation)(struct svga_winsys_context *swc, SVGAMobId *id, struct svga_winsys_gb_query *query); /** * Bind queries to context. * \param flags exactly one of SVGA_QUERY_FLAG_SET/REF */ enum pipe_error (*query_bind)(struct svga_winsys_context *sws, struct svga_winsys_gb_query *query, unsigned flags); void (*commit)(struct svga_winsys_context *swc); enum pipe_error (*flush)(struct svga_winsys_context *swc, struct pipe_fence_handle **pfence); /** * Context ID used to fill in the commands * * Context IDs are arbitrary small non-negative integers, * global to the entire SVGA device. */ uint32 cid; /** * Flags to hint the current context state */ uint32 hints; /** * File descriptor for imported fence */ int32 imported_fence_fd; /** ** BEGIN new functions for guest-backed surfaces. **/ boolean have_gb_objects; /** * Map a guest-backed surface. * \param flags bitmaks of PIPE_TRANSFER_x flags * * The surface_map() member is allowed to fail due to a * shortage of command buffer space, if the * PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE bit is set in flags. * In that case, the caller must flush the current command * buffer and reissue the map. */ void * (*surface_map)(struct svga_winsys_context *swc, struct svga_winsys_surface *surface, unsigned flags, boolean *retry); /** * Unmap a guest-backed surface. * \param rebind returns a flag indicating whether the caller should * issue a SVGA3D_BindGBSurface() call. */ void (*surface_unmap)(struct svga_winsys_context *swc, struct svga_winsys_surface *surface, boolean *rebind); /** * Invalidate the content of this surface */ enum pipe_error (*surface_invalidate)(struct svga_winsys_context *swc, struct svga_winsys_surface *surface); /** * Create and define a DX GB shader that resides in the device COTable. * Caller of this function will issue the DXDefineShader command. */ struct svga_winsys_gb_shader * (*shader_create)(struct svga_winsys_context *swc, uint32 shaderId, SVGA3dShaderType shaderType, const uint32 *bytecode, uint32 bytecodeLen); /** * Destroy a DX GB shader. * This function will issue the DXDestroyShader command. */ void (*shader_destroy)(struct svga_winsys_context *swc, struct svga_winsys_gb_shader *shader); /** * Rebind a DX GB resource to a context. * This is called to reference a DX GB resource in the command stream in * order to page in the associated resource in case the memory has been * paged out, and to fence it if necessary after command submission. */ enum pipe_error (*resource_rebind)(struct svga_winsys_context *swc, struct svga_winsys_surface *surface, struct svga_winsys_gb_shader *shader, unsigned flags); /** To report perf/conformance/etc issues to the state tracker */ struct pipe_debug_callback *debug_callback; /** The more recent command issued to command buffer */ SVGAFifo3dCmdId last_command; /** For HUD queries */ uint64_t num_commands; uint64_t num_draw_commands; }; /** * SVGA per-screen winsys interface. */ struct svga_winsys_screen { void (*destroy)(struct svga_winsys_screen *sws); SVGA3dHardwareVersion (*get_hw_version)(struct svga_winsys_screen *sws); boolean (*get_cap)(struct svga_winsys_screen *sws, SVGA3dDevCapIndex index, SVGA3dDevCapResult *result); /** * Create a new context. * * Context objects encapsulate all render state, and shader * objects are per-context. * * Surfaces are not per-context. The same surface can be shared * between multiple contexts, and surface operations can occur * without a context. */ struct svga_winsys_context * (*context_create)(struct svga_winsys_screen *sws); /** * This creates a "surface" object in the SVGA3D device. * * \param sws Pointer to an svga_winsys_context * \param flags Device surface create flags * \param format Format Device surface format * \param usage Winsys usage: bitmask of SVGA_SURFACE_USAGE_x flags * \param size Surface size given in device format * \param numLayers Number of layers of the surface (or cube faces) * \param numMipLevels Number of mipmap levels for each face * * Returns the surface ID (sid). Surfaces are generic * containers for host VRAM objects like textures, vertex * buffers, and depth/stencil buffers. * * Surfaces are hierarchial: * * - Surface may have multiple faces (for cube maps) * * - Each face has a list of mipmap levels * * - Each mipmap image may have multiple volume * slices for 3D image, or multiple 2D slices for texture array. * * - Each slice is a 2D array of 'blocks' * * - Each block may be one or more pixels. * (Usually 1, more for DXT or YUV formats.) * * Surfaces are generic host VRAM objects. The SVGA3D device * may optimize surfaces according to the format they were * created with, but this format does not limit the ways in * which the surface may be used. For example, a depth surface * can be used as a texture, or a floating point image may * be used as a vertex buffer. Some surface usages may be * lower performance, due to software emulation, but any * usage should work with any surface. */ struct svga_winsys_surface * (*surface_create)(struct svga_winsys_screen *sws, SVGA3dSurfaceAllFlags flags, SVGA3dSurfaceFormat format, unsigned usage, SVGA3dSize size, uint32 numLayers, uint32 numMipLevels, unsigned sampleCount); /** * Creates a surface from a winsys handle. * Used to implement pipe_screen::resource_from_handle. */ struct svga_winsys_surface * (*surface_from_handle)(struct svga_winsys_screen *sws, struct winsys_handle *whandle, SVGA3dSurfaceFormat *format); /** * Get a winsys_handle from a surface. * Used to implement pipe_screen::resource_get_handle. */ boolean (*surface_get_handle)(struct svga_winsys_screen *sws, struct svga_winsys_surface *surface, unsigned stride, struct winsys_handle *whandle); /** * Whether this surface is sitting in a validate list */ boolean (*surface_is_flushed)(struct svga_winsys_screen *sws, struct svga_winsys_surface *surface); /** * Reference a SVGA3D surface object. This allows sharing of a * surface between different objects. */ void (*surface_reference)(struct svga_winsys_screen *sws, struct svga_winsys_surface **pdst, struct svga_winsys_surface *src); /** * Check if a resource (texture, buffer) of the given size * and format can be created. * \Return TRUE if OK, FALSE if too large. */ boolean (*surface_can_create)(struct svga_winsys_screen *sws, SVGA3dSurfaceFormat format, SVGA3dSize size, uint32 numLayers, uint32 numMipLevels, uint32 numSamples); /** * Buffer management. Buffer attributes are mostly fixed over its lifetime. * * @param usage bitmask of SVGA_BUFFER_USAGE_* flags. * * alignment indicates the client's alignment requirements, eg for * SSE instructions. */ struct svga_winsys_buffer * (*buffer_create)( struct svga_winsys_screen *sws, unsigned alignment, unsigned usage, unsigned size ); /** * Map the entire data store of a buffer object into the client's address. * usage is a bitmask of PIPE_TRANSFER_* */ void * (*buffer_map)( struct svga_winsys_screen *sws, struct svga_winsys_buffer *buf, unsigned usage ); void (*buffer_unmap)( struct svga_winsys_screen *sws, struct svga_winsys_buffer *buf ); void (*buffer_destroy)( struct svga_winsys_screen *sws, struct svga_winsys_buffer *buf ); /** * Reference a fence object. */ void (*fence_reference)( struct svga_winsys_screen *sws, struct pipe_fence_handle **pdst, struct pipe_fence_handle *src ); /** * Checks whether the fence has been signalled. * \param flags driver-specific meaning * \return zero on success. */ int (*fence_signalled)( struct svga_winsys_screen *sws, struct pipe_fence_handle *fence, unsigned flag ); /** * Wait for the fence to finish. * \param timeout in nanoseconds (may be PIPE_TIMEOUT_INFINITE). * 0 to return immediately, if the API suports it. * \param flags driver-specific meaning * \return zero on success. */ int (*fence_finish)( struct svga_winsys_screen *sws, struct pipe_fence_handle *fence, uint64_t timeout, unsigned flag ); /** * Get the file descriptor associated with the fence * \param duplicate duplicate the fd before returning it * \return zero on success. */ int (*fence_get_fd)( struct svga_winsys_screen *sws, struct pipe_fence_handle *fence, boolean duplicate ); /** * Create a fence using the given file descriptor * \return zero on success. */ void (*fence_create_fd)( struct svga_winsys_screen *sws, struct pipe_fence_handle **fence, int32_t fd ); /** * Accumulates fence FD from other devices into the current context * \param context_fd FD the context will be waiting on * \return zero on success */ int (*fence_server_sync)( struct svga_winsys_screen *sws, int32_t *context_fd, struct pipe_fence_handle *fence ); /** ** BEGIN new functions for guest-backed surfaces. **/ /** Are guest-backed objects enabled? */ bool have_gb_objects; /** Can we do DMA with guest-backed objects enabled? */ bool have_gb_dma; /** * Create and define a GB shader. */ struct svga_winsys_gb_shader * (*shader_create)(struct svga_winsys_screen *sws, SVGA3dShaderType shaderType, const uint32 *bytecode, uint32 bytecodeLen); /** * Destroy a GB shader. It's safe to call this function even * if the shader is referenced in a context's command stream. */ void (*shader_destroy)(struct svga_winsys_screen *sws, struct svga_winsys_gb_shader *shader); /** * Create and define a GB query. */ struct svga_winsys_gb_query * (*query_create)(struct svga_winsys_screen *sws, uint32 len); /** * Destroy a GB query. */ void (*query_destroy)(struct svga_winsys_screen *sws, struct svga_winsys_gb_query *query); /** * Initialize the query state of the query that resides in the slot * specified in offset * \return zero on success. */ int (*query_init)(struct svga_winsys_screen *sws, struct svga_winsys_gb_query *query, unsigned offset, SVGA3dQueryState queryState); /** * Inquire for the query state and result of the query that resides * in the slot specified in offset */ void (*query_get_result)(struct svga_winsys_screen *sws, struct svga_winsys_gb_query *query, unsigned offset, SVGA3dQueryState *queryState, void *result, uint32 resultLen); /** * Increment a statistic counter */ void (*stats_inc)(enum svga_stats_count); /** * Push a time frame onto the stack */ void (*stats_time_push)(enum svga_stats_time, struct svga_winsys_stats_timeframe *); /** * Pop a time frame. */ void (*stats_time_pop)(); /** Have VGPU v10 hardware? */ boolean have_vgpu10; /** Have SM4_1 hardware? */ boolean have_sm4_1; /** To rebind resources at the beginnning of a new command buffer */ boolean need_to_rebind_resources; boolean have_generate_mipmap_cmd; boolean have_set_predication_cmd; boolean have_transfer_from_buffer_cmd; boolean have_fence_fd; boolean have_intra_surface_copy; }; struct svga_winsys_screen * svga_winsys_screen(struct pipe_screen *screen); struct svga_winsys_context * svga_winsys_context(struct pipe_context *context); struct pipe_resource * svga_screen_buffer_wrap_surface(struct pipe_screen *screen, enum SVGA3dSurfaceFormat format, struct svga_winsys_surface *srf); struct svga_winsys_surface * svga_screen_buffer_get_winsys_surface(struct pipe_resource *buffer); #endif /* SVGA_WINSYS_H_ */