text: /**********************************************************
   * Copyright 1998-2009 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.
   *
   **********************************************************/
  
  /*
   * svga3d_reg.h --
   *
   *       SVGA 3D hardware definitions
   */
  
  #ifndef _SVGA3D_REG_H_
  #define _SVGA3D_REG_H_
  
  #include "svga_reg.h"
  
  
  /*
   * 3D Hardware Version
   *
   *   The hardware version is stored in the SVGA_FIFO_3D_HWVERSION fifo
   *   register.   Is set by the host and read by the guest.  This lets
   *   us make new guest drivers which are backwards-compatible with old
   *   SVGA hardware revisions.  It does not let us support old guest
   *   drivers.  Good enough for now.
   *
   */
  
  #define SVGA3D_MAKE_HWVERSION(major, minor)      (((major) << 16) | ((minor) & 0xFF))
  #define SVGA3D_MAJOR_HWVERSION(version)          ((version) >> 16)
  #define SVGA3D_MINOR_HWVERSION(version)          ((version) & 0xFF)
  
  typedef enum {
     SVGA3D_HWVERSION_WS5_RC1   = SVGA3D_MAKE_HWVERSION(0, 1),
     SVGA3D_HWVERSION_WS5_RC2   = SVGA3D_MAKE_HWVERSION(0, 2),
     SVGA3D_HWVERSION_WS51_RC1  = SVGA3D_MAKE_HWVERSION(0, 3),
     SVGA3D_HWVERSION_WS6_B1    = SVGA3D_MAKE_HWVERSION(1, 1),
     SVGA3D_HWVERSION_FUSION_11 = SVGA3D_MAKE_HWVERSION(1, 4),
     SVGA3D_HWVERSION_WS65_B1   = SVGA3D_MAKE_HWVERSION(2, 0),
     SVGA3D_HWVERSION_WS8_B1    = SVGA3D_MAKE_HWVERSION(2, 1),
     SVGA3D_HWVERSION_CURRENT   = SVGA3D_HWVERSION_WS8_B1,
  } SVGA3dHardwareVersion;
  
  /*
   * Generic Types
   */
  
  typedef uint32_t SVGA3dBool; /* 32-bit Bool definition */
  #define SVGA3D_NUM_CLIPPLANES                   6
  #define SVGA3D_MAX_SIMULTANEOUS_RENDER_TARGETS  8
  #define SVGA3D_MAX_CONTEXT_IDS                  256
  #define SVGA3D_MAX_SURFACE_IDS                  (32 * 1024)
  
  /*
   * Surface formats.
   *
   * If you modify this list, be sure to keep GLUtil.c in sync. It
   * includes the internal format definition of each surface in
   * GLUtil_ConvertSurfaceFormat, and it contains a table of
   * human-readable names in GLUtil_GetFormatName.
   */
  
  typedef enum SVGA3dSurfaceFormat {
     SVGA3D_FORMAT_INVALID               = 0,
  
     SVGA3D_X8R8G8B8                     = 1,
     SVGA3D_A8R8G8B8                     = 2,
  
     SVGA3D_R5G6B5                       = 3,
     SVGA3D_X1R5G5B5                     = 4,
     SVGA3D_A1R5G5B5                     = 5,
     SVGA3D_A4R4G4B4                     = 6,
  
     SVGA3D_Z_D32                        = 7,
     SVGA3D_Z_D16                        = 8,
     SVGA3D_Z_D24S8                      = 9,
     SVGA3D_Z_D15S1                      = 10,
  
     SVGA3D_LUMINANCE8                   = 11,
     SVGA3D_LUMINANCE4_ALPHA4            = 12,
     SVGA3D_LUMINANCE16                  = 13,
     SVGA3D_LUMINANCE8_ALPHA8            = 14,
  
     SVGA3D_DXT1                         = 15,
     SVGA3D_DXT2                         = 16,
     SVGA3D_DXT3                         = 17,
     SVGA3D_DXT4                         = 18,
     SVGA3D_DXT5                         = 19,
  
     SVGA3D_BUMPU8V8                     = 20,
     SVGA3D_BUMPL6V5U5                   = 21,
     SVGA3D_BUMPX8L8V8U8                 = 22,
     SVGA3D_BUMPL8V8U8                   = 23,
  
     SVGA3D_ARGB_S10E5                   = 24,   /* 16-bit floating-point ARGB */
     SVGA3D_ARGB_S23E8                   = 25,   /* 32-bit floating-point ARGB */
  
     SVGA3D_A2R10G10B10                  = 26,
  
     /* signed formats */
     SVGA3D_V8U8                         = 27,
     SVGA3D_Q8W8V8U8                     = 28,
     SVGA3D_CxV8U8                       = 29,
  
     /* mixed formats */
     SVGA3D_X8L8V8U8                     = 30,
     SVGA3D_A2W10V10U10                  = 31,
  
     SVGA3D_ALPHA8                       = 32,
  
     /* Single- and dual-component floating point formats */
     SVGA3D_R_S10E5                      = 33,
     SVGA3D_R_S23E8                      = 34,
     SVGA3D_RG_S10E5                     = 35,
     SVGA3D_RG_S23E8                     = 36,
  
     /*
      * Any surface can be used as a buffer object, but SVGA3D_BUFFER is
      * the most efficient format to use when creating new surfaces
      * expressly for index or vertex data.
      */
  
     SVGA3D_BUFFER                       = 37,
  
     SVGA3D_Z_D24X8                      = 38,
  
     SVGA3D_V16U16                       = 39,
  
     SVGA3D_G16R16                       = 40,
     SVGA3D_A16B16G16R16                 = 41,
  
     /* Packed Video formats */
     SVGA3D_UYVY                         = 42,
     SVGA3D_YUY2                         = 43,
  
     /* Planar video formats */
     SVGA3D_NV12                         = 44,
  
     /* Video format with alpha */
     SVGA3D_AYUV                         = 45,
  
     SVGA3D_BC4_UNORM                    = 108,
     SVGA3D_BC5_UNORM                    = 111,
  
     /* Advanced D3D9 depth formats. */
     SVGA3D_Z_DF16                       = 118,
     SVGA3D_Z_DF24                       = 119,
     SVGA3D_Z_D24S8_INT                  = 120,
  
     SVGA3D_FORMAT_MAX
  } SVGA3dSurfaceFormat;
  
  typedef uint32_t SVGA3dColor; /* a, r, g, b */
  
  /*
   * These match the D3DFORMAT_OP definitions used by Direct3D. We need
   * them so that we can query the host for what the supported surface
   * operations are (when we're using the D3D backend, in particular),
   * and so we can send those operations to the guest.
   */
  typedef enum {
     SVGA3DFORMAT_OP_TEXTURE                               = 0x00000001,
     SVGA3DFORMAT_OP_VOLUMETEXTURE                         = 0x00000002,
     SVGA3DFORMAT_OP_CUBETEXTURE                           = 0x00000004,
     SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET                = 0x00000008,
     SVGA3DFORMAT_OP_SAME_FORMAT_RENDERTARGET              = 0x00000010,
     SVGA3DFORMAT_OP_ZSTENCIL                              = 0x00000040,
     SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH   = 0x00000080,
  
  /*
   * This format can be used as a render target if the current display mode
   * is the same depth if the alpha channel is ignored. e.g. if the device
   * can render to A8R8G8B8 when the display mode is X8R8G8B8, then the
   * format op list entry for A8R8G8B8 should have this cap.
   */
     SVGA3DFORMAT_OP_SAME_FORMAT_UP_TO_ALPHA_RENDERTARGET  = 0x00000100,
  
  /*
   * This format contains DirectDraw support (including Flip).  This flag
   * should not to be set on alpha formats.
   */
     SVGA3DFORMAT_OP_DISPLAYMODE                           = 0x00000400,
  
  /*
   * The rasterizer can support some level of Direct3D support in this format
   * and implies that the driver can create a Context in this mode (for some
   * render target format).  When this flag is set, the SVGA3DFORMAT_OP_DISPLAYMODE
   * flag must also be set.
   */
     SVGA3DFORMAT_OP_3DACCELERATION                        = 0x00000800,
  
  /*
   * This is set for a private format when the driver has put the bpp in
   * the structure.
   */
     SVGA3DFORMAT_OP_PIXELSIZE                             = 0x00001000,
  
  /*
   * Indicates that this format can be converted to any RGB format for which
   * SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB is specified
   */
     SVGA3DFORMAT_OP_CONVERT_TO_ARGB                       = 0x00002000,
  
  /*
   * Indicates that this format can be used to create offscreen plain surfaces.
   */
     SVGA3DFORMAT_OP_OFFSCREENPLAIN                        = 0x00004000,
  
  /*
   * Indicated that this format can be read as an SRGB texture (meaning that the
   * sampler will linearize the looked up data)
   */
     SVGA3DFORMAT_OP_SRGBREAD                              = 0x00008000,
  
  /*
   * Indicates that this format can be used in the bumpmap instructions
   */
     SVGA3DFORMAT_OP_BUMPMAP                               = 0x00010000,
  
  /*
   * Indicates that this format can be sampled by the displacement map sampler
   */
     SVGA3DFORMAT_OP_DMAP                                  = 0x00020000,
  
  /*
   * Indicates that this format cannot be used with texture filtering
   */
     SVGA3DFORMAT_OP_NOFILTER                              = 0x00040000,
  
  /*
   * Indicates that format conversions are supported to this RGB format if
   * SVGA3DFORMAT_OP_CONVERT_TO_ARGB is specified in the source format.
   */
     SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB                    = 0x00080000,
  
  /*
   * Indicated that this format can be written as an SRGB target (meaning that the
   * pixel pipe will DE-linearize data on output to format)
   */
     SVGA3DFORMAT_OP_SRGBWRITE                             = 0x00100000,
  
  /*
   * Indicates that this format cannot be used with alpha blending
   */
     SVGA3DFORMAT_OP_NOALPHABLEND                          = 0x00200000,
  
  /*
   * Indicates that the device can auto-generated sublevels for resources
   * of this format
   */
     SVGA3DFORMAT_OP_AUTOGENMIPMAP                         = 0x00400000,
  
  /*
   * Indicates that this format can be used by vertex texture sampler
   */
     SVGA3DFORMAT_OP_VERTEXTEXTURE                         = 0x00800000,
  
  /*
   * Indicates that this format supports neither texture coordinate wrap
   * modes, nor mipmapping
   */
     SVGA3DFORMAT_OP_NOTEXCOORDWRAPNORMIP                  = 0x01000000
  } SVGA3dFormatOp;
  
  /*
   * This structure is a conversion of SVGA3DFORMAT_OP_*.
   * Entries must be located at the same position.
   */
  typedef union {
     uint32_t value;
     struct {
        uint32_t texture : 1;
        uint32_t volumeTexture : 1;
        uint32_t cubeTexture : 1;
        uint32_t offscreenRenderTarget : 1;
        uint32_t sameFormatRenderTarget : 1;
        uint32_t unknown1 : 1;
        uint32_t zStencil : 1;
        uint32_t zStencilArbitraryDepth : 1;
        uint32_t sameFormatUpToAlpha : 1;
        uint32_t unknown2 : 1;
        uint32_t displayMode : 1;
        uint32_t acceleration3d : 1;
        uint32_t pixelSize : 1;
        uint32_t convertToARGB : 1;
        uint32_t offscreenPlain : 1;
        uint32_t sRGBRead : 1;
        uint32_t bumpMap : 1;
        uint32_t dmap : 1;
        uint32_t noFilter : 1;
        uint32_t memberOfGroupARGB : 1;
        uint32_t sRGBWrite : 1;
        uint32_t noAlphaBlend : 1;
        uint32_t autoGenMipMap : 1;
        uint32_t vertexTexture : 1;
        uint32_t noTexCoordWrapNorMip : 1;
     };
  } SVGA3dSurfaceFormatCaps;
  
  /*
   * SVGA_3D_CMD_SETRENDERSTATE Types.  All value types
   * must fit in a uint32_t.
   */
  
  typedef enum {
     SVGA3D_RS_INVALID                   = 0,
     SVGA3D_RS_ZENABLE                   = 1,     /* SVGA3dBool */
     SVGA3D_RS_ZWRITEENABLE              = 2,     /* SVGA3dBool */
     SVGA3D_RS_ALPHATESTENABLE           = 3,     /* SVGA3dBool */
     SVGA3D_RS_DITHERENABLE              = 4,     /* SVGA3dBool */
     SVGA3D_RS_BLENDENABLE               = 5,     /* SVGA3dBool */
     SVGA3D_RS_FOGENABLE                 = 6,     /* SVGA3dBool */
     SVGA3D_RS_SPECULARENABLE            = 7,     /* SVGA3dBool */
     SVGA3D_RS_STENCILENABLE             = 8,     /* SVGA3dBool */
     SVGA3D_RS_LIGHTINGENABLE            = 9,     /* SVGA3dBool */
     SVGA3D_RS_NORMALIZENORMALS          = 10,    /* SVGA3dBool */
     SVGA3D_RS_POINTSPRITEENABLE         = 11,    /* SVGA3dBool */
     SVGA3D_RS_POINTSCALEENABLE          = 12,    /* SVGA3dBool */
     SVGA3D_RS_STENCILREF                = 13,    /* uint32_t */
     SVGA3D_RS_STENCILMASK               = 14,    /* uint32_t */
     SVGA3D_RS_STENCILWRITEMASK          = 15,    /* uint32_t */
     SVGA3D_RS_FOGSTART                  = 16,    /* float */
     SVGA3D_RS_FOGEND                    = 17,    /* float */
     SVGA3D_RS_FOGDENSITY                = 18,    /* float */
     SVGA3D_RS_POINTSIZE                 = 19,    /* float */
     SVGA3D_RS_POINTSIZEMIN              = 20,    /* float */
     SVGA3D_RS_POINTSIZEMAX              = 21,    /* float */
     SVGA3D_RS_POINTSCALE_A              = 22,    /* float */
     SVGA3D_RS_POINTSCALE_B              = 23,    /* float */
     SVGA3D_RS_POINTSCALE_C              = 24,    /* float */
     SVGA3D_RS_FOGCOLOR                  = 25,    /* SVGA3dColor */
     SVGA3D_RS_AMBIENT                   = 26,    /* SVGA3dColor */
     SVGA3D_RS_CLIPPLANEENABLE           = 27,    /* SVGA3dClipPlanes */
     SVGA3D_RS_FOGMODE                   = 28,    /* SVGA3dFogMode */
     SVGA3D_RS_FILLMODE                  = 29,    /* SVGA3dFillMode */
     SVGA3D_RS_SHADEMODE                 = 30,    /* SVGA3dShadeMode */
     SVGA3D_RS_LINEPATTERN               = 31,    /* SVGA3dLinePattern */
     SVGA3D_RS_SRCBLEND                  = 32,    /* SVGA3dBlendOp */
     SVGA3D_RS_DSTBLEND                  = 33,    /* SVGA3dBlendOp */
     SVGA3D_RS_BLENDEQUATION             = 34,    /* SVGA3dBlendEquation */
     SVGA3D_RS_CULLMODE                  = 35,    /* SVGA3dFace */
     SVGA3D_RS_ZFUNC                     = 36,    /* SVGA3dCmpFunc */
     SVGA3D_RS_ALPHAFUNC                 = 37,    /* SVGA3dCmpFunc */
     SVGA3D_RS_STENCILFUNC               = 38,    /* SVGA3dCmpFunc */
     SVGA3D_RS_STENCILFAIL               = 39,    /* SVGA3dStencilOp */
     SVGA3D_RS_STENCILZFAIL              = 40,    /* SVGA3dStencilOp */
     SVGA3D_RS_STENCILPASS               = 41,    /* SVGA3dStencilOp */
     SVGA3D_RS_ALPHAREF                  = 42,    /* float (0.0 .. 1.0) */
     SVGA3D_RS_FRONTWINDING              = 43,    /* SVGA3dFrontWinding */
     SVGA3D_RS_COORDINATETYPE            = 44,    /* SVGA3dCoordinateType */
     SVGA3D_RS_ZBIAS                     = 45,    /* float */
     SVGA3D_RS_RANGEFOGENABLE            = 46,    /* SVGA3dBool */
     SVGA3D_RS_COLORWRITEENABLE          = 47,    /* SVGA3dColorMask */
     SVGA3D_RS_VERTEXMATERIALENABLE      = 48,    /* SVGA3dBool */
     SVGA3D_RS_DIFFUSEMATERIALSOURCE     = 49,    /* SVGA3dVertexMaterial */
     SVGA3D_RS_SPECULARMATERIALSOURCE    = 50,    /* SVGA3dVertexMaterial */
     SVGA3D_RS_AMBIENTMATERIALSOURCE     = 51,    /* SVGA3dVertexMaterial */
     SVGA3D_RS_EMISSIVEMATERIALSOURCE    = 52,    /* SVGA3dVertexMaterial */
     SVGA3D_RS_TEXTUREFACTOR             = 53,    /* SVGA3dColor */
     SVGA3D_RS_LOCALVIEWER               = 54,    /* SVGA3dBool */
     SVGA3D_RS_SCISSORTESTENABLE         = 55,    /* SVGA3dBool */
     SVGA3D_RS_BLENDCOLOR                = 56,    /* SVGA3dColor */
     SVGA3D_RS_STENCILENABLE2SIDED       = 57,    /* SVGA3dBool */
     SVGA3D_RS_CCWSTENCILFUNC            = 58,    /* SVGA3dCmpFunc */
     SVGA3D_RS_CCWSTENCILFAIL            = 59,    /* SVGA3dStencilOp */
     SVGA3D_RS_CCWSTENCILZFAIL           = 60,    /* SVGA3dStencilOp */
     SVGA3D_RS_CCWSTENCILPASS            = 61,    /* SVGA3dStencilOp */
     SVGA3D_RS_VERTEXBLEND               = 62,    /* SVGA3dVertexBlendFlags */
     SVGA3D_RS_SLOPESCALEDEPTHBIAS       = 63,    /* float */
     SVGA3D_RS_DEPTHBIAS                 = 64,    /* float */
  
  
     /*
      * Output Gamma Level
      *
      * Output gamma effects the gamma curve of colors that are output from the
      * rendering pipeline.  A value of 1.0 specifies a linear color space. If the
      * value is <= 0.0, gamma correction is ignored and linear color space is
      * used.
      */
  
     SVGA3D_RS_OUTPUTGAMMA               = 65,    /* float */
     SVGA3D_RS_ZVISIBLE                  = 66,    /* SVGA3dBool */
     SVGA3D_RS_LASTPIXEL                 = 67,    /* SVGA3dBool */
     SVGA3D_RS_CLIPPING                  = 68,    /* SVGA3dBool */
     SVGA3D_RS_WRAP0                     = 69,    /* SVGA3dWrapFlags */
     SVGA3D_RS_WRAP1                     = 70,    /* SVGA3dWrapFlags */
     SVGA3D_RS_WRAP2                     = 71,    /* SVGA3dWrapFlags */
     SVGA3D_RS_WRAP3                     = 72,    /* SVGA3dWrapFlags */
     SVGA3D_RS_WRAP4                     = 73,    /* SVGA3dWrapFlags */
     SVGA3D_RS_WRAP5                     = 74,    /* SVGA3dWrapFlags */
     SVGA3D_RS_WRAP6                     = 75,    /* SVGA3dWrapFlags */
     SVGA3D_RS_WRAP7                     = 76,    /* SVGA3dWrapFlags */
     SVGA3D_RS_WRAP8                     = 77,    /* SVGA3dWrapFlags */
     SVGA3D_RS_WRAP9                     = 78,    /* SVGA3dWrapFlags */
     SVGA3D_RS_WRAP10                    = 79,    /* SVGA3dWrapFlags */
     SVGA3D_RS_WRAP11                    = 80,    /* SVGA3dWrapFlags */
     SVGA3D_RS_WRAP12                    = 81,    /* SVGA3dWrapFlags */
     SVGA3D_RS_WRAP13                    = 82,    /* SVGA3dWrapFlags */
     SVGA3D_RS_WRAP14                    = 83,    /* SVGA3dWrapFlags */
     SVGA3D_RS_WRAP15                    = 84,    /* SVGA3dWrapFlags */
     SVGA3D_RS_MULTISAMPLEANTIALIAS      = 85,    /* SVGA3dBool */
     SVGA3D_RS_MULTISAMPLEMASK           = 86,    /* uint32_t */
     SVGA3D_RS_INDEXEDVERTEXBLENDENABLE  = 87,    /* SVGA3dBool */
     SVGA3D_RS_TWEENFACTOR               = 88,    /* float */
     SVGA3D_RS_ANTIALIASEDLINEENABLE     = 89,    /* SVGA3dBool */
     SVGA3D_RS_COLORWRITEENABLE1         = 90,    /* SVGA3dColorMask */
     SVGA3D_RS_COLORWRITEENABLE2         = 91,    /* SVGA3dColorMask */
     SVGA3D_RS_COLORWRITEENABLE3         = 92,    /* SVGA3dColorMask */
     SVGA3D_RS_SEPARATEALPHABLENDENABLE  = 93,    /* SVGA3dBool */
     SVGA3D_RS_SRCBLENDALPHA             = 94,    /* SVGA3dBlendOp */
     SVGA3D_RS_DSTBLENDALPHA             = 95,    /* SVGA3dBlendOp */
     SVGA3D_RS_BLENDEQUATIONALPHA        = 96,    /* SVGA3dBlendEquation */
     SVGA3D_RS_TRANSPARENCYANTIALIAS     = 97,    /* SVGA3dTransparencyAntialiasType */
     SVGA3D_RS_LINEAA                    = 98,    /* SVGA3dBool */
     SVGA3D_RS_LINEWIDTH                 = 99,    /* float */
     SVGA3D_RS_MAX
  } SVGA3dRenderStateName;
  
  typedef enum {
     SVGA3D_TRANSPARENCYANTIALIAS_NORMAL            = 0,
     SVGA3D_TRANSPARENCYANTIALIAS_ALPHATOCOVERAGE   = 1,
     SVGA3D_TRANSPARENCYANTIALIAS_SUPERSAMPLE       = 2,
     SVGA3D_TRANSPARENCYANTIALIAS_MAX
  } SVGA3dTransparencyAntialiasType;
  
  typedef enum {
     SVGA3D_VERTEXMATERIAL_NONE     = 0,    /* Use the value in the current material */
     SVGA3D_VERTEXMATERIAL_DIFFUSE  = 1,    /* Use the value in the diffuse component */
     SVGA3D_VERTEXMATERIAL_SPECULAR = 2,    /* Use the value in the specular component */
  } SVGA3dVertexMaterial;
  
  typedef enum {
     SVGA3D_FILLMODE_INVALID = 0,
     SVGA3D_FILLMODE_POINT   = 1,
     SVGA3D_FILLMODE_LINE    = 2,
     SVGA3D_FILLMODE_FILL    = 3,
     SVGA3D_FILLMODE_MAX
  } SVGA3dFillModeType;
  
  
  typedef
  union {
     struct {
        uint16_t   mode;       /* SVGA3dFillModeType */
        uint16_t   face;       /* SVGA3dFace */
     };
     uint32_t uintValue;
  } SVGA3dFillMode;
  
  typedef enum {
     SVGA3D_SHADEMODE_INVALID = 0,
     SVGA3D_SHADEMODE_FLAT    = 1,
     SVGA3D_SHADEMODE_SMOOTH  = 2,
     SVGA3D_SHADEMODE_PHONG   = 3,     /* Not supported */
     SVGA3D_SHADEMODE_MAX
  } SVGA3dShadeMode;
  
  typedef
  union {
     struct {
        uint16_t repeat;
        uint16_t pattern;
     };
     uint32_t uintValue;
  } SVGA3dLinePattern;
  
  typedef enum {
     SVGA3D_BLENDOP_INVALID            = 0,
     SVGA3D_BLENDOP_ZERO               = 1,
     SVGA3D_BLENDOP_ONE                = 2,
     SVGA3D_BLENDOP_SRCCOLOR           = 3,
     SVGA3D_BLENDOP_INVSRCCOLOR        = 4,
     SVGA3D_BLENDOP_SRCALPHA           = 5,
     SVGA3D_BLENDOP_INVSRCALPHA        = 6,
     SVGA3D_BLENDOP_DESTALPHA          = 7,
     SVGA3D_BLENDOP_INVDESTALPHA       = 8,
     SVGA3D_BLENDOP_DESTCOLOR          = 9,
     SVGA3D_BLENDOP_INVDESTCOLOR       = 10,
     SVGA3D_BLENDOP_SRCALPHASAT        = 11,
     SVGA3D_BLENDOP_BLENDFACTOR        = 12,
     SVGA3D_BLENDOP_INVBLENDFACTOR     = 13,
     SVGA3D_BLENDOP_MAX
  } SVGA3dBlendOp;
  
  typedef enum {
     SVGA3D_BLENDEQ_INVALID            = 0,
     SVGA3D_BLENDEQ_ADD                = 1,
     SVGA3D_BLENDEQ_SUBTRACT           = 2,
     SVGA3D_BLENDEQ_REVSUBTRACT        = 3,
     SVGA3D_BLENDEQ_MINIMUM            = 4,
     SVGA3D_BLENDEQ_MAXIMUM            = 5,
     SVGA3D_BLENDEQ_MAX
  } SVGA3dBlendEquation;
  
  typedef enum {
     SVGA3D_FRONTWINDING_INVALID = 0,
     SVGA3D_FRONTWINDING_CW      = 1,
     SVGA3D_FRONTWINDING_CCW     = 2,
     SVGA3D_FRONTWINDING_MAX
  } SVGA3dFrontWinding;
  
  typedef enum {
     SVGA3D_FACE_INVALID  = 0,
     SVGA3D_FACE_NONE     = 1,
     SVGA3D_FACE_FRONT    = 2,
     SVGA3D_FACE_BACK     = 3,
     SVGA3D_FACE_FRONT_BACK = 4,
     SVGA3D_FACE_MAX
  } SVGA3dFace;
  
  /*
   * The order and the values should not be changed
   */
  
  typedef enum {
     SVGA3D_CMP_INVALID              = 0,
     SVGA3D_CMP_NEVER                = 1,
     SVGA3D_CMP_LESS                 = 2,
     SVGA3D_CMP_EQUAL                = 3,
     SVGA3D_CMP_LESSEQUAL            = 4,
     SVGA3D_CMP_GREATER              = 5,
     SVGA3D_CMP_NOTEQUAL             = 6,
     SVGA3D_CMP_GREATEREQUAL         = 7,
     SVGA3D_CMP_ALWAYS               = 8,
     SVGA3D_CMP_MAX
  } SVGA3dCmpFunc;
  
  /*
   * SVGA3D_FOGFUNC_* specifies the fog equation, or PER_VERTEX which allows
   * the fog factor to be specified in the alpha component of the specular
   * (a.k.a. secondary) vertex color.
   */
  typedef enum {
     SVGA3D_FOGFUNC_INVALID          = 0,
     SVGA3D_FOGFUNC_EXP              = 1,
     SVGA3D_FOGFUNC_EXP2             = 2,
     SVGA3D_FOGFUNC_LINEAR           = 3,
     SVGA3D_FOGFUNC_PER_VERTEX       = 4
  } SVGA3dFogFunction;
  
  /*
   * SVGA3D_FOGTYPE_* specifies if fog factors are computed on a per-vertex
   * or per-pixel basis.
   */
  typedef enum {
     SVGA3D_FOGTYPE_INVALID          = 0,
     SVGA3D_FOGTYPE_VERTEX           = 1,
     SVGA3D_FOGTYPE_PIXEL            = 2,
     SVGA3D_FOGTYPE_MAX              = 3
  } SVGA3dFogType;
  
  /*
   * SVGA3D_FOGBASE_* selects depth or range-based fog. Depth-based fog is
   * computed using the eye Z value of each pixel (or vertex), whereas range-
   * based fog is computed using the actual distance (range) to the eye.
   */
  typedef enum {
     SVGA3D_FOGBASE_INVALID          = 0,
     SVGA3D_FOGBASE_DEPTHBASED       = 1,
     SVGA3D_FOGBASE_RANGEBASED       = 2,
     SVGA3D_FOGBASE_MAX              = 3
  } SVGA3dFogBase;
  
  typedef enum {
     SVGA3D_STENCILOP_INVALID        = 0,
     SVGA3D_STENCILOP_KEEP           = 1,
     SVGA3D_STENCILOP_ZERO           = 2,
     SVGA3D_STENCILOP_REPLACE        = 3,
     SVGA3D_STENCILOP_INCRSAT        = 4,
     SVGA3D_STENCILOP_DECRSAT        = 5,
     SVGA3D_STENCILOP_INVERT         = 6,
     SVGA3D_STENCILOP_INCR           = 7,
     SVGA3D_STENCILOP_DECR           = 8,
     SVGA3D_STENCILOP_MAX
  } SVGA3dStencilOp;
  
  typedef enum {
     SVGA3D_CLIPPLANE_0              = (1 << 0),
     SVGA3D_CLIPPLANE_1              = (1 << 1),
     SVGA3D_CLIPPLANE_2              = (1 << 2),
     SVGA3D_CLIPPLANE_3              = (1 << 3),
     SVGA3D_CLIPPLANE_4              = (1 << 4),
     SVGA3D_CLIPPLANE_5              = (1 << 5),
  } SVGA3dClipPlanes;
  
  typedef enum {
     SVGA3D_CLEAR_COLOR              = 0x1,
     SVGA3D_CLEAR_DEPTH              = 0x2,
     SVGA3D_CLEAR_STENCIL            = 0x4
  } SVGA3dClearFlag;
  
  typedef enum {
     SVGA3D_RT_DEPTH                 = 0,
     SVGA3D_RT_STENCIL               = 1,
     SVGA3D_RT_COLOR0                = 2,
     SVGA3D_RT_COLOR1                = 3,
     SVGA3D_RT_COLOR2                = 4,
     SVGA3D_RT_COLOR3                = 5,
     SVGA3D_RT_COLOR4                = 6,
     SVGA3D_RT_COLOR5                = 7,
     SVGA3D_RT_COLOR6                = 8,
     SVGA3D_RT_COLOR7                = 9,
     SVGA3D_RT_MAX,
     SVGA3D_RT_INVALID               = ((uint32_t)-1),
  } SVGA3dRenderTargetType;
  
  #define SVGA3D_MAX_RT_COLOR (SVGA3D_RT_COLOR7 - SVGA3D_RT_COLOR0 + 1)
  
  typedef
  union {
     struct {
        uint32_t  red   : 1;
        uint32_t  green : 1;
        uint32_t  blue  : 1;
        uint32_t  alpha : 1;
     };
     uint32_t uintValue;
  } SVGA3dColorMask;
  
  typedef enum {
     SVGA3D_VBLEND_DISABLE            = 0,
     SVGA3D_VBLEND_1WEIGHT            = 1,
     SVGA3D_VBLEND_2WEIGHT            = 2,
     SVGA3D_VBLEND_3WEIGHT            = 3,
  } SVGA3dVertexBlendFlags;
  
  typedef enum {
     SVGA3D_WRAPCOORD_0   = 1 << 0,
     SVGA3D_WRAPCOORD_1   = 1 << 1,
     SVGA3D_WRAPCOORD_2   = 1 << 2,
     SVGA3D_WRAPCOORD_3   = 1 << 3,
     SVGA3D_WRAPCOORD_ALL = 0xF,
  } SVGA3dWrapFlags;
  
  /*
   * SVGA_3D_CMD_TEXTURESTATE Types.  All value types
   * must fit in a uint32_t.
   */
  
  typedef enum {
     SVGA3D_TS_INVALID                    = 0,
     SVGA3D_TS_BIND_TEXTURE               = 1,    /* SVGA3dSurfaceId */
     SVGA3D_TS_COLOROP                    = 2,    /* SVGA3dTextureCombiner */
     SVGA3D_TS_COLORARG1                  = 3,    /* SVGA3dTextureArgData */
     SVGA3D_TS_COLORARG2                  = 4,    /* SVGA3dTextureArgData */
     SVGA3D_TS_ALPHAOP                    = 5,    /* SVGA3dTextureCombiner */
     SVGA3D_TS_ALPHAARG1                  = 6,    /* SVGA3dTextureArgData */
     SVGA3D_TS_ALPHAARG2                  = 7,    /* SVGA3dTextureArgData */
     SVGA3D_TS_ADDRESSU                   = 8,    /* SVGA3dTextureAddress */
     SVGA3D_TS_ADDRESSV                   = 9,    /* SVGA3dTextureAddress */
     SVGA3D_TS_MIPFILTER                  = 10,   /* SVGA3dTextureFilter */
     SVGA3D_TS_MAGFILTER                  = 11,   /* SVGA3dTextureFilter */
     SVGA3D_TS_MINFILTER                  = 12,   /* SVGA3dTextureFilter */
     SVGA3D_TS_BORDERCOLOR                = 13,   /* SVGA3dColor */
     SVGA3D_TS_TEXCOORDINDEX              = 14,   /* uint32_t */
     SVGA3D_TS_TEXTURETRANSFORMFLAGS      = 15,   /* SVGA3dTexTransformFlags */
     SVGA3D_TS_TEXCOORDGEN                = 16,   /* SVGA3dTextureCoordGen */
     SVGA3D_TS_BUMPENVMAT00               = 17,   /* float */
     SVGA3D_TS_BUMPENVMAT01               = 18,   /* float */
     SVGA3D_TS_BUMPENVMAT10               = 19,   /* float */
     SVGA3D_TS_BUMPENVMAT11               = 20,   /* float */
     SVGA3D_TS_TEXTURE_MIPMAP_LEVEL       = 21,   /* uint32_t */
     SVGA3D_TS_TEXTURE_LOD_BIAS           = 22,   /* float */
     SVGA3D_TS_TEXTURE_ANISOTROPIC_LEVEL  = 23,   /* uint32_t */
     SVGA3D_TS_ADDRESSW                   = 24,   /* SVGA3dTextureAddress */
  
  
     /*
      * Sampler Gamma Level
      *
      * Sampler gamma effects the color of samples taken from the sampler.  A
      * value of 1.0 will produce linear samples.  If the value is <= 0.0 the
      * gamma value is ignored and a linear space is used.
      */
  
     SVGA3D_TS_GAMMA                      = 25,   /* float */
     SVGA3D_TS_BUMPENVLSCALE              = 26,   /* float */
     SVGA3D_TS_BUMPENVLOFFSET             = 27,   /* float */
     SVGA3D_TS_COLORARG0                  = 28,   /* SVGA3dTextureArgData */
     SVGA3D_TS_ALPHAARG0                  = 29,   /* SVGA3dTextureArgData */
     SVGA3D_TS_MAX
  } SVGA3dTextureStateName;
  
  typedef enum {
     SVGA3D_TC_INVALID                   = 0,
     SVGA3D_TC_DISABLE                   = 1,
     SVGA3D_TC_SELECTARG1                = 2,
     SVGA3D_TC_SELECTARG2                = 3,
     SVGA3D_TC_MODULATE                  = 4,
     SVGA3D_TC_ADD                       = 5,
     SVGA3D_TC_ADDSIGNED                 = 6,
     SVGA3D_TC_SUBTRACT                  = 7,
     SVGA3D_TC_BLENDTEXTUREALPHA         = 8,
     SVGA3D_TC_BLENDDIFFUSEALPHA         = 9,
     SVGA3D_TC_BLENDCURRENTALPHA         = 10,
     SVGA3D_TC_BLENDFACTORALPHA          = 11,
     SVGA3D_TC_MODULATE2X                = 12,
     SVGA3D_TC_MODULATE4X                = 13,
     SVGA3D_TC_DSDT                      = 14,
     SVGA3D_TC_DOTPRODUCT3               = 15,
     SVGA3D_TC_BLENDTEXTUREALPHAPM       = 16,
     SVGA3D_TC_ADDSIGNED2X               = 17,
     SVGA3D_TC_ADDSMOOTH                 = 18,
     SVGA3D_TC_PREMODULATE               = 19,
     SVGA3D_TC_MODULATEALPHA_ADDCOLOR    = 20,
     SVGA3D_TC_MODULATECOLOR_ADDALPHA    = 21,
     SVGA3D_TC_MODULATEINVALPHA_ADDCOLOR = 22,
     SVGA3D_TC_MODULATEINVCOLOR_ADDALPHA = 23,
     SVGA3D_TC_BUMPENVMAPLUMINANCE       = 24,
     SVGA3D_TC_MULTIPLYADD               = 25,
     SVGA3D_TC_LERP                      = 26,
     SVGA3D_TC_MAX
  } SVGA3dTextureCombiner;
  
  #define SVGA3D_TC_CAP_BIT(svga3d_tc_op) (svga3d_tc_op ? (1 << (svga3d_tc_op - 1)) : 0)
  
  typedef enum {
     SVGA3D_TEX_ADDRESS_INVALID    = 0,
     SVGA3D_TEX_ADDRESS_WRAP       = 1,
     SVGA3D_TEX_ADDRESS_MIRROR     = 2,
     SVGA3D_TEX_ADDRESS_CLAMP      = 3,
     SVGA3D_TEX_ADDRESS_BORDER     = 4,
     SVGA3D_TEX_ADDRESS_MIRRORONCE = 5,
     SVGA3D_TEX_ADDRESS_EDGE       = 6,
     SVGA3D_TEX_ADDRESS_MAX
  } SVGA3dTextureAddress;
  
  /*
   * SVGA3D_TEX_FILTER_NONE as the minification filter means mipmapping is
   * disabled, and the rasterizer should use the magnification filter instead.
   */
  typedef enum {
     SVGA3D_TEX_FILTER_NONE           = 0,
     SVGA3D_TEX_FILTER_NEAREST        = 1,
     SVGA3D_TEX_FILTER_LINEAR         = 2,
     SVGA3D_TEX_FILTER_ANISOTROPIC    = 3,
     SVGA3D_TEX_FILTER_FLATCUBIC      = 4, // Deprecated, not implemented
     SVGA3D_TEX_FILTER_GAUSSIANCUBIC  = 5, // Deprecated, not implemented
     SVGA3D_TEX_FILTER_PYRAMIDALQUAD  = 6, // Not currently implemented
     SVGA3D_TEX_FILTER_GAUSSIANQUAD   = 7, // Not currently implemented
     SVGA3D_TEX_FILTER_MAX
  } SVGA3dTextureFilter;
  
  typedef enum {
     SVGA3D_TEX_TRANSFORM_OFF    = 0,
     SVGA3D_TEX_TRANSFORM_S      = (1 << 0),
     SVGA3D_TEX_TRANSFORM_T      = (1 << 1),
     SVGA3D_TEX_TRANSFORM_R      = (1 << 2),
     SVGA3D_TEX_TRANSFORM_Q      = (1 << 3),
     SVGA3D_TEX_PROJECTED        = (1 << 15),
  } SVGA3dTexTransformFlags;
  
  typedef enum {
     SVGA3D_TEXCOORD_GEN_OFF              = 0,
     SVGA3D_TEXCOORD_GEN_EYE_POSITION     = 1,
     SVGA3D_TEXCOORD_GEN_EYE_NORMAL       = 2,
     SVGA3D_TEXCOORD_GEN_REFLECTIONVECTOR = 3,
     SVGA3D_TEXCOORD_GEN_SPHERE           = 4,
     SVGA3D_TEXCOORD_GEN_MAX
  } SVGA3dTextureCoordGen;
  
  /*
   * Texture argument constants for texture combiner
   */
  typedef enum {
     SVGA3D_TA_INVALID    = 0,
     SVGA3D_TA_CONSTANT   = 1,
     SVGA3D_TA_PREVIOUS   = 2,
     SVGA3D_TA_DIFFUSE    = 3,
     SVGA3D_TA_TEXTURE    = 4,
     SVGA3D_TA_SPECULAR   = 5,
     SVGA3D_TA_MAX
  } SVGA3dTextureArgData;
  
  #define SVGA3D_TM_MASK_LEN 4
  
  /* Modifiers for texture argument constants defined above. */
  typedef enum {
     SVGA3D_TM_NONE       = 0,
     SVGA3D_TM_ALPHA      = (1 << SVGA3D_TM_MASK_LEN),
     SVGA3D_TM_ONE_MINUS  = (2 << SVGA3D_TM_MASK_LEN),
  } SVGA3dTextureArgModifier;
  
  #define SVGA3D_INVALID_ID         ((uint32_t)-1)
  #define SVGA3D_MAX_CLIP_PLANES    6
  
  /*
   * This is the limit to the number of fixed-function texture
   * transforms and texture coordinates we can support. It does *not*
   * correspond to the number of texture image units (samplers) we
   * support!
   */
  #define SVGA3D_MAX_TEXTURE_COORDS 8
  
  /*
   * Vertex declarations
   *
   * Notes:
   *
   * SVGA3D_DECLUSAGE_POSITIONT is for pre-transformed vertices. If you
   * draw with any POSITIONT vertex arrays, the programmable vertex
   * pipeline will be implicitly disabled. Drawing will take place as if
   * no vertex shader was bound.
   */
  
  typedef enum {
     SVGA3D_DECLUSAGE_POSITION     = 0,
     SVGA3D_DECLUSAGE_BLENDWEIGHT,       //  1
     SVGA3D_DECLUSAGE_BLENDINDICES,      //  2
     SVGA3D_DECLUSAGE_NORMAL,            //  3
     SVGA3D_DECLUSAGE_PSIZE,             //  4
     SVGA3D_DECLUSAGE_TEXCOORD,          //  5
     SVGA3D_DECLUSAGE_TANGENT,           //  6
     SVGA3D_DECLUSAGE_BINORMAL,          //  7
     SVGA3D_DECLUSAGE_TESSFACTOR,        //  8
     SVGA3D_DECLUSAGE_POSITIONT,         //  9
     SVGA3D_DECLUSAGE_COLOR,             // 10
     SVGA3D_DECLUSAGE_FOG,               // 11
     SVGA3D_DECLUSAGE_DEPTH,             // 12
     SVGA3D_DECLUSAGE_SAMPLE,            // 13
     SVGA3D_DECLUSAGE_MAX
  } SVGA3dDeclUsage;
  
  typedef enum {
     SVGA3D_DECLMETHOD_DEFAULT     = 0,
     SVGA3D_DECLMETHOD_PARTIALU,
     SVGA3D_DECLMETHOD_PARTIALV,
     SVGA3D_DECLMETHOD_CROSSUV,          // Normal
     SVGA3D_DECLMETHOD_UV,
     SVGA3D_DECLMETHOD_LOOKUP,           // Lookup a displacement map
     SVGA3D_DECLMETHOD_LOOKUPPRESAMPLED, // Lookup a pre-sampled displacement map
  } SVGA3dDeclMethod;
  
  typedef enum {
     SVGA3D_DECLTYPE_FLOAT1        =  0,
     SVGA3D_DECLTYPE_FLOAT2        =  1,
     SVGA3D_DECLTYPE_FLOAT3        =  2,
     SVGA3D_DECLTYPE_FLOAT4        =  3,
     SVGA3D_DECLTYPE_D3DCOLOR      =  4,
     SVGA3D_DECLTYPE_UBYTE4        =  5,
     SVGA3D_DECLTYPE_SHORT2        =  6,
     SVGA3D_DECLTYPE_SHORT4        =  7,
     SVGA3D_DECLTYPE_UBYTE4N       =  8,
     SVGA3D_DECLTYPE_SHORT2N       =  9,
     SVGA3D_DECLTYPE_SHORT4N       = 10,
     SVGA3D_DECLTYPE_USHORT2N      = 11,
     SVGA3D_DECLTYPE_USHORT4N      = 12,
     SVGA3D_DECLTYPE_UDEC3         = 13,
     SVGA3D_DECLTYPE_DEC3N         = 14,
     SVGA3D_DECLTYPE_FLOAT16_2     = 15,
     SVGA3D_DECLTYPE_FLOAT16_4     = 16,
     SVGA3D_DECLTYPE_MAX,
  } SVGA3dDeclType;
  
  /*
   * This structure is used for the divisor for geometry instancing;
   * it's a direct translation of the Direct3D equivalent.
   */
  typedef union {
     struct {
        /*
         * For index data, this number represents the number of instances to draw.
         * For instance data, this number represents the number of
         * instances/vertex in this stream
         */
        uint32_t count : 30;
  
        /*
         * This is 1 if this is supposed to be the data that is repeated for
         * every instance.
         */
        uint32_t indexedData : 1;
  
        /*
         * This is 1 if this is supposed to be the per-instance data.
         */
        uint32_t instanceData : 1;
     };
  
     uint32_t value;
  } SVGA3dVertexDivisor;
  
  typedef enum {
     SVGA3D_PRIMITIVE_INVALID                     = 0,
     SVGA3D_PRIMITIVE_TRIANGLELIST                = 1,
     SVGA3D_PRIMITIVE_POINTLIST                   = 2,
     SVGA3D_PRIMITIVE_LINELIST                    = 3,
     SVGA3D_PRIMITIVE_LINESTRIP                   = 4,
     SVGA3D_PRIMITIVE_TRIANGLESTRIP               = 5,
     SVGA3D_PRIMITIVE_TRIANGLEFAN                 = 6,
     SVGA3D_PRIMITIVE_MAX
  } SVGA3dPrimitiveType;
  
  typedef enum {
     SVGA3D_COORDINATE_INVALID                   = 0,
     SVGA3D_COORDINATE_LEFTHANDED                = 1,
     SVGA3D_COORDINATE_RIGHTHANDED               = 2,
     SVGA3D_COORDINATE_MAX
  } SVGA3dCoordinateType;
  
  typedef enum {
     SVGA3D_TRANSFORM_INVALID                     = 0,
     SVGA3D_TRANSFORM_WORLD                       = 1,
     SVGA3D_TRANSFORM_VIEW                        = 2,
     SVGA3D_TRANSFORM_PROJECTION                  = 3,
     SVGA3D_TRANSFORM_TEXTURE0                    = 4,
     SVGA3D_TRANSFORM_TEXTURE1                    = 5,
     SVGA3D_TRANSFORM_TEXTURE2                    = 6,
     SVGA3D_TRANSFORM_TEXTURE3                    = 7,
     SVGA3D_TRANSFORM_TEXTURE4                    = 8,
     SVGA3D_TRANSFORM_TEXTURE5                    = 9,
     SVGA3D_TRANSFORM_TEXTURE6                    = 10,
     SVGA3D_TRANSFORM_TEXTURE7                    = 11,
     SVGA3D_TRANSFORM_WORLD1                      = 12,
     SVGA3D_TRANSFORM_WORLD2                      = 13,
     SVGA3D_TRANSFORM_WORLD3                      = 14,
     SVGA3D_TRANSFORM_MAX
  } SVGA3dTransformType;
  
  typedef enum {
     SVGA3D_LIGHTTYPE_INVALID                     = 0,
     SVGA3D_LIGHTTYPE_POINT                       = 1,
     SVGA3D_LIGHTTYPE_SPOT1                       = 2, /* 1-cone, in degrees */
     SVGA3D_LIGHTTYPE_SPOT2                       = 3, /* 2-cone, in radians */
     SVGA3D_LIGHTTYPE_DIRECTIONAL                 = 4,
     SVGA3D_LIGHTTYPE_MAX
  } SVGA3dLightType;
  
  typedef enum {
     SVGA3D_CUBEFACE_POSX                         = 0,
     SVGA3D_CUBEFACE_NEGX                         = 1,
     SVGA3D_CUBEFACE_POSY                         = 2,
     SVGA3D_CUBEFACE_NEGY                         = 3,
     SVGA3D_CUBEFACE_POSZ                         = 4,
     SVGA3D_CUBEFACE_NEGZ                         = 5,
  } SVGA3dCubeFace;
  
  typedef enum {
     SVGA3D_SHADERTYPE_VS                         = 1,
     SVGA3D_SHADERTYPE_PS                         = 2,
     SVGA3D_SHADERTYPE_MAX
  } SVGA3dShaderType;
  
  typedef enum {
     SVGA3D_CONST_TYPE_FLOAT                      = 0,
     SVGA3D_CONST_TYPE_INT                        = 1,
     SVGA3D_CONST_TYPE_BOOL                       = 2,
  } SVGA3dShaderConstType;
  
  #define SVGA3D_MAX_SURFACE_FACES                6
  
  typedef enum {
     SVGA3D_STRETCH_BLT_POINT                     = 0,
     SVGA3D_STRETCH_BLT_LINEAR                    = 1,
     SVGA3D_STRETCH_BLT_MAX
  } SVGA3dStretchBltMode;
  
  typedef enum {
     SVGA3D_QUERYTYPE_OCCLUSION                   = 0,
     SVGA3D_QUERYTYPE_MAX
  } SVGA3dQueryType;
  
  typedef enum {
     SVGA3D_QUERYSTATE_PENDING     = 0,      /* Waiting on the host (set by guest) */
     SVGA3D_QUERYSTATE_SUCCEEDED   = 1,      /* Completed successfully (set by host) */
     SVGA3D_QUERYSTATE_FAILED      = 2,      /* Completed unsuccessfully (set by host) */
     SVGA3D_QUERYSTATE_NEW         = 3,      /* Never submitted (For guest use only) */
  } SVGA3dQueryState;
  
  typedef enum {
     SVGA3D_WRITE_HOST_VRAM        = 1,
     SVGA3D_READ_HOST_VRAM         = 2,
  } SVGA3dTransferType;
  
  /*
   * The maximum number of vertex arrays we're guaranteed to support in
   * SVGA_3D_CMD_DRAWPRIMITIVES.
   */
  #define SVGA3D_MAX_VERTEX_ARRAYS   32
  
  /*
   * The maximum number of primitive ranges we're guaranteed to support
   * in SVGA_3D_CMD_DRAWPRIMITIVES.
   */
  #define SVGA3D_MAX_DRAW_PRIMITIVE_RANGES 32
  
  /*
   * Identifiers for commands in the command FIFO.
   *
   * IDs between 1000 and 1039 (inclusive) were used by obsolete versions of
   * the SVGA3D protocol and remain reserved; they should not be used in the
   * future.
   *
   * IDs between 1040 and 1999 (inclusive) are available for use by the
   * current SVGA3D protocol.
   *
   * FIFO clients other than SVGA3D should stay below 1000, or at 2000
   * and up.
   */
  
  #define SVGA_3D_CMD_LEGACY_BASE            1000
  #define SVGA_3D_CMD_BASE                   1040
  
  #define SVGA_3D_CMD_SURFACE_DEFINE         SVGA_3D_CMD_BASE + 0     // Deprecated
  #define SVGA_3D_CMD_SURFACE_DESTROY        SVGA_3D_CMD_BASE + 1
  #define SVGA_3D_CMD_SURFACE_COPY           SVGA_3D_CMD_BASE + 2
  #define SVGA_3D_CMD_SURFACE_STRETCHBLT     SVGA_3D_CMD_BASE + 3
  #define SVGA_3D_CMD_SURFACE_DMA            SVGA_3D_CMD_BASE + 4
  #define SVGA_3D_CMD_CONTEXT_DEFINE         SVGA_3D_CMD_BASE + 5
  #define SVGA_3D_CMD_CONTEXT_DESTROY        SVGA_3D_CMD_BASE + 6
  #define SVGA_3D_CMD_SETTRANSFORM           SVGA_3D_CMD_BASE + 7
  #define SVGA_3D_CMD_SETZRANGE              SVGA_3D_CMD_BASE + 8
  #define SVGA_3D_CMD_SETRENDERSTATE         SVGA_3D_CMD_BASE + 9
  #define SVGA_3D_CMD_SETRENDERTARGET        SVGA_3D_CMD_BASE + 10
  #define SVGA_3D_CMD_SETTEXTURESTATE        SVGA_3D_CMD_BASE + 11
  #define SVGA_3D_CMD_SETMATERIAL            SVGA_3D_CMD_BASE + 12
  #define SVGA_3D_CMD_SETLIGHTDATA           SVGA_3D_CMD_BASE + 13
  #define SVGA_3D_CMD_SETLIGHTENABLED        SVGA_3D_CMD_BASE + 14
  #define SVGA_3D_CMD_SETVIEWPORT            SVGA_3D_CMD_BASE + 15
  #define SVGA_3D_CMD_SETCLIPPLANE           SVGA_3D_CMD_BASE + 16
  #define SVGA_3D_CMD_CLEAR                  SVGA_3D_CMD_BASE + 17
  #define SVGA_3D_CMD_PRESENT                SVGA_3D_CMD_BASE + 18    // Deprecated
  #define SVGA_3D_CMD_SHADER_DEFINE          SVGA_3D_CMD_BASE + 19
  #define SVGA_3D_CMD_SHADER_DESTROY         SVGA_3D_CMD_BASE + 20
  #define SVGA_3D_CMD_SET_SHADER             SVGA_3D_CMD_BASE + 21
  #define SVGA_3D_CMD_SET_SHADER_CONST       SVGA_3D_CMD_BASE + 22
  #define SVGA_3D_CMD_DRAW_PRIMITIVES        SVGA_3D_CMD_BASE + 23
  #define SVGA_3D_CMD_SETSCISSORRECT         SVGA_3D_CMD_BASE + 24
  #define SVGA_3D_CMD_BEGIN_QUERY            SVGA_3D_CMD_BASE + 25
  #define SVGA_3D_CMD_END_QUERY              SVGA_3D_CMD_BASE + 26
  #define SVGA_3D_CMD_WAIT_FOR_QUERY         SVGA_3D_CMD_BASE + 27
  #define SVGA_3D_CMD_PRESENT_READBACK       SVGA_3D_CMD_BASE + 28    // Deprecated
  #define SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN SVGA_3D_CMD_BASE + 29
  #define SVGA_3D_CMD_SURFACE_DEFINE_V2      SVGA_3D_CMD_BASE + 30
  #define SVGA_3D_CMD_GENERATE_MIPMAPS       SVGA_3D_CMD_BASE + 31
  #define SVGA_3D_CMD_ACTIVATE_SURFACE       SVGA_3D_CMD_BASE + 40
  #define SVGA_3D_CMD_DEACTIVATE_SURFACE     SVGA_3D_CMD_BASE + 41
  #define SVGA_3D_CMD_MAX                    SVGA_3D_CMD_BASE + 42
  
  #define SVGA_3D_CMD_FUTURE_MAX             2000
  
  /*
   * Common substructures used in multiple FIFO commands:
   */
  
  typedef struct {
     union {
        struct {
           uint16_t  function;       // SVGA3dFogFunction
           uint8_t   type;           // SVGA3dFogType
           uint8_t   base;           // SVGA3dFogBase
        };
        uint32_t     uintValue;
     };
  } SVGA3dFogMode;
  
  /*
   * Uniquely identify one image (a 1D/2D/3D array) from a surface. This
   * is a surface ID as well as face/mipmap indices.
   */
  
  typedef
  struct SVGA3dSurfaceImageId {
     uint32_t               sid;
     uint32_t               face;
     uint32_t               mipmap;
  } SVGA3dSurfaceImageId;
  
  typedef
  struct SVGA3dGuestImage {
     SVGAGuestPtr         ptr;
  
     /*
      * A note on interpretation of pitch: This value of pitch is the
      * number of bytes between vertically adjacent image
      * blocks. Normally this is the number of bytes between the first
      * pixel of two adjacent scanlines. With compressed textures,
      * however, this may represent the number of bytes between
      * compression blocks rather than between rows of pixels.
      *
      * XXX: Compressed textures currently must be tightly packed in guest memory.
      *
      * If the image is 1-dimensional, pitch is ignored.
      *
      * If 'pitch' is zero, the SVGA3D device calculates a pitch value
      * assuming each row of blocks is tightly packed.
      */
     uint32_t pitch;
  } SVGA3dGuestImage;
  
  
  /*
   * FIFO command format definitions:
   */
  
  /*
   * The data size header following cmdNum for every 3d command
   */
  typedef
  struct {
     uint32_t               id;
     uint32_t               size;
  } SVGA3dCmdHeader;
  
  /*
   * A surface is a hierarchy of host VRAM surfaces: 1D, 2D, or 3D, with
   * optional mipmaps and cube faces.
   */
  
  typedef
  struct {
     uint32_t               width;
     uint32_t               height;
     uint32_t               depth;
  } SVGA3dSize;
  
  typedef enum {
     SVGA3D_SURFACE_CUBEMAP              = (1 << 0),
     SVGA3D_SURFACE_HINT_STATIC          = (1 << 1),
     SVGA3D_SURFACE_HINT_DYNAMIC         = (1 << 2),
     SVGA3D_SURFACE_HINT_INDEXBUFFER     = (1 << 3),
     SVGA3D_SURFACE_HINT_VERTEXBUFFER    = (1 << 4),
     SVGA3D_SURFACE_HINT_TEXTURE         = (1 << 5),
     SVGA3D_SURFACE_HINT_RENDERTARGET    = (1 << 6),
     SVGA3D_SURFACE_HINT_DEPTHSTENCIL    = (1 << 7),
     SVGA3D_SURFACE_HINT_WRITEONLY       = (1 << 8),
     SVGA3D_SURFACE_MASKABLE_ANTIALIAS   = (1 << 9),
     SVGA3D_SURFACE_AUTOGENMIPMAPS       = (1 << 10),
  } SVGA3dSurfaceFlags;
  
  typedef
  struct {
     uint32_t               numMipLevels;
  } SVGA3dSurfaceFace;
  
  typedef
  struct {
     uint32_t                      sid;
     SVGA3dSurfaceFlags          surfaceFlags;
     SVGA3dSurfaceFormat         format;
     /*
      * If surfaceFlags has SVGA3D_SURFACE_CUBEMAP bit set, all SVGA3dSurfaceFace
      * structures must have the same value of numMipLevels field.
      * Otherwise, all but the first SVGA3dSurfaceFace structures must have the
      * numMipLevels set to 0.
      */
     SVGA3dSurfaceFace           face[SVGA3D_MAX_SURFACE_FACES];
     /*
      * Followed by an SVGA3dSize structure for each mip level in each face.
      *
      * A note on surface sizes: Sizes are always specified in pixels,
      * even if the true surface size is not a multiple of the minimum
      * block size of the surface's format. For example, a 3x3x1 DXT1
      * compressed texture would actually be stored as a 4x4x1 image in
      * memory.
      */
  } SVGA3dCmdDefineSurface;       /* SVGA_3D_CMD_SURFACE_DEFINE */
  
  typedef
  struct {
     uint32_t                      sid;
     SVGA3dSurfaceFlags          surfaceFlags;
     SVGA3dSurfaceFormat         format;
     /*
      * If surfaceFlags has SVGA3D_SURFACE_CUBEMAP bit set, all SVGA3dSurfaceFace
      * structures must have the same value of numMipLevels field.
      * Otherwise, all but the first SVGA3dSurfaceFace structures must have the
      * numMipLevels set to 0.
      */
     SVGA3dSurfaceFace           face[SVGA3D_MAX_SURFACE_FACES];
     uint32_t                      multisampleCount;
     SVGA3dTextureFilter         autogenFilter;
     /*
      * Followed by an SVGA3dSize structure for each mip level in each face.
      *
      * A note on surface sizes: Sizes are always specified in pixels,
      * even if the true surface size is not a multiple of the minimum
      * block size of the surface's format. For example, a 3x3x1 DXT1
      * compressed texture would actually be stored as a 4x4x1 image in
      * memory.
      */
  } SVGA3dCmdDefineSurface_v2;     /* SVGA_3D_CMD_SURFACE_DEFINE_V2 */
  
  typedef
  struct {
     uint32_t               sid;
  } SVGA3dCmdDestroySurface;      /* SVGA_3D_CMD_SURFACE_DESTROY */
  
  typedef
  struct {
     uint32_t               cid;
  } SVGA3dCmdDefineContext;       /* SVGA_3D_CMD_CONTEXT_DEFINE */
  
  typedef
  struct {
     uint32_t               cid;
  } SVGA3dCmdDestroyContext;      /* SVGA_3D_CMD_CONTEXT_DESTROY */
  
  typedef
  struct {
     uint32_t               cid;
     SVGA3dClearFlag      clearFlag;
     uint32_t               color;
     float                depth;
     uint32_t               stencil;
     /* Followed by variable number of SVGA3dRect structures */
  } SVGA3dCmdClear;               /* SVGA_3D_CMD_CLEAR */
  
  typedef
  struct SVGA3dCopyRect {
     uint32_t               x;
     uint32_t               y;
     uint32_t               w;
     uint32_t               h;
     uint32_t               srcx;
     uint32_t               srcy;
  } SVGA3dCopyRect;
  
  typedef
  struct SVGA3dCopyBox {
     uint32_t               x;
     uint32_t               y;
     uint32_t               z;
     uint32_t               w;
     uint32_t               h;
     uint32_t               d;
     uint32_t               srcx;
     uint32_t               srcy;
     uint32_t               srcz;
  } SVGA3dCopyBox;
  
  typedef
  struct {
     uint32_t               x;
     uint32_t               y;
     uint32_t               w;
     uint32_t               h;
  } SVGA3dRect;
  
  typedef
  struct {
     uint32_t               x;
     uint32_t               y;
     uint32_t               z;
     uint32_t               w;
     uint32_t               h;
     uint32_t               d;
  } SVGA3dBox;
  
  typedef
  struct {
     uint32_t               x;
     uint32_t               y;
     uint32_t               z;
  } SVGA3dPoint;
  
  typedef
  struct {
     SVGA3dLightType      type;
     SVGA3dBool           inWorldSpace;
     float                diffuse[4];
     float                specular[4];
     float                ambient[4];
     float                position[4];
     float                direction[4];
     float                range;
     float                falloff;
     float                attenuation0;
     float                attenuation1;
     float                attenuation2;
     float                theta;
     float                phi;
  } SVGA3dLightData;
  
  typedef
  struct {
     uint32_t               sid;
     /* Followed by variable number of SVGA3dCopyRect structures */
  } SVGA3dCmdPresent;             /* SVGA_3D_CMD_PRESENT */
  
  typedef
  struct {
     SVGA3dRenderStateName   state;
     union {
        uint32_t               uintValue;
        float                floatValue;
     };
  } SVGA3dRenderState;
  
  typedef
  struct {
     uint32_t               cid;
     /* Followed by variable number of SVGA3dRenderState structures */
  } SVGA3dCmdSetRenderState;      /* SVGA_3D_CMD_SETRENDERSTATE */
  
  typedef
  struct {
     uint32_t                 cid;
     SVGA3dRenderTargetType type;
     SVGA3dSurfaceImageId   target;
  } SVGA3dCmdSetRenderTarget;     /* SVGA_3D_CMD_SETRENDERTARGET */
  
  typedef
  struct {
     SVGA3dSurfaceImageId  src;
     SVGA3dSurfaceImageId  dest;
     /* Followed by variable number of SVGA3dCopyBox structures */
  } SVGA3dCmdSurfaceCopy;               /* SVGA_3D_CMD_SURFACE_COPY */
  
  typedef
  struct {
     SVGA3dSurfaceImageId  src;
     SVGA3dSurfaceImageId  dest;
     SVGA3dBox             boxSrc;
     SVGA3dBox             boxDest;
     SVGA3dStretchBltMode  mode;
  } SVGA3dCmdSurfaceStretchBlt;         /* SVGA_3D_CMD_SURFACE_STRETCHBLT */
  
  typedef
  struct {
     /*
      * If the discard flag is present in a surface DMA operation, the host may
      * discard the contents of the current mipmap level and face of the target
      * surface before applying the surface DMA contents.
      */
     uint32_t discard : 1;
  
     /*
      * If the unsynchronized flag is present, the host may perform this upload
      * without syncing to pending reads on this surface.
      */
     uint32_t unsynchronized : 1;
  
     /*
      * Guests *MUST* set the reserved bits to 0 before submitting the command
      * suffix as future flags may occupy these bits.
      */
     uint32_t reserved : 30;
  } SVGA3dSurfaceDMAFlags;
  
  typedef
  struct {
     SVGA3dGuestImage      guest;
     SVGA3dSurfaceImageId  host;
     SVGA3dTransferType    transfer;
     /*
      * Followed by variable number of SVGA3dCopyBox structures. For consistency
      * in all clipping logic and coordinate translation, we define the
      * "source" in each copyBox as the guest image and the
      * "destination" as the host image, regardless of transfer
      * direction.
      *
      * For efficiency, the SVGA3D device is free to copy more data than
      * specified. For example, it may round copy boxes outwards such
      * that they lie on particular alignment boundaries.
      */
  } SVGA3dCmdSurfaceDMA;                /* SVGA_3D_CMD_SURFACE_DMA */
  
  /*
   * SVGA3dCmdSurfaceDMASuffix --
   *
   *    This is a command suffix that will appear after a SurfaceDMA command in
   *    the FIFO.  It contains some extra information that hosts may use to
   *    optimize performance or protect the guest.  This suffix exists to preserve
   *    backwards compatibility while also allowing for new functionality to be
   *    implemented.
   */
  
  typedef
  struct {
     uint32_t suffixSize;
  
     /*
      * The maximum offset is used to determine the maximum offset from the
      * guestPtr base address that will be accessed or written to during this
      * surfaceDMA.  If the suffix is supported, the host will respect this
      * boundary while performing surface DMAs.
      *
      * Defaults to MAX_uint32_t
      */
     uint32_t maximumOffset;
  
     /*
      * A set of flags that describes optimizations that the host may perform
      * while performing this surface DMA operation.  The guest should never rely
      * on behaviour that is different when these flags are set for correctness.
      *
      * Defaults to 0
      */
     SVGA3dSurfaceDMAFlags flags;
  } SVGA3dCmdSurfaceDMASuffix;
  
  /*
   * SVGA_3D_CMD_DRAW_PRIMITIVES --
   *
   *   This command is the SVGA3D device's generic drawing entry point.
   *   It can draw multiple ranges of primitives, optionally using an
   *   index buffer, using an arbitrary collection of vertex buffers.
   *
   *   Each SVGA3dVertexDecl defines a distinct vertex array to bind
   *   during this draw call. The declarations specify which surface
   *   the vertex data lives in, what that vertex data is used for,
   *   and how to interpret it.
   *
   *   Each SVGA3dPrimitiveRange defines a collection of primitives
   *   to render using the same vertex arrays. An index buffer is
   *   optional.
   */
  
  typedef
  struct {
     /*
      * A range hint is an optional specification for the range of indices
      * in an SVGA3dArray that will be used. If 'last' is zero, it is assumed
      * that the entire array will be used.
      *
      * These are only hints. The SVGA3D device may use them for
      * performance optimization if possible, but it's also allowed to
      * ignore these values.
      */
     uint32_t               first;
     uint32_t               last;
  } SVGA3dArrayRangeHint;
  
  typedef
  struct {
     /*
      * Define the origin and shape of a vertex or index array. Both
      * 'offset' and 'stride' are in bytes. The provided surface will be
      * reinterpreted as a flat array of bytes in the same format used
      * by surface DMA operations. To avoid unnecessary conversions, the
      * surface should be created with the SVGA3D_BUFFER format.
      *
      * Index 0 in the array starts 'offset' bytes into the surface.
      * Index 1 begins at byte 'offset + stride', etc. Array indices may
      * not be negative.
      */
     uint32_t               surfaceId;
     uint32_t               offset;
     uint32_t               stride;
  } SVGA3dArray;
  
  typedef
  struct {
     /*
      * Describe a vertex array's data type, and define how it is to be
      * used by the fixed function pipeline or the vertex shader. It
      * isn't useful to have two VertexDecls with the same
      * VertexArrayIdentity in one draw call.
      */
     SVGA3dDeclType       type;
     SVGA3dDeclMethod     method;
     SVGA3dDeclUsage      usage;
     uint32_t               usageIndex;
  } SVGA3dVertexArrayIdentity;
  
  typedef
  struct {
     SVGA3dVertexArrayIdentity  identity;
     SVGA3dArray                array;
     SVGA3dArrayRangeHint       rangeHint;
  } SVGA3dVertexDecl;
  
  typedef
  struct {
     /*
      * Define a group of primitives to render, from sequential indices.
      *
      * The value of 'primitiveType' and 'primitiveCount' imply the
      * total number of vertices that will be rendered.
      */
     SVGA3dPrimitiveType  primType;
     uint32_t               primitiveCount;
  
     /*
      * Optional index buffer. If indexArray.surfaceId is
      * SVGA3D_INVALID_ID, we render without an index buffer. Rendering
      * without an index buffer is identical to rendering with an index
      * buffer containing the sequence [0, 1, 2, 3, ...].
      *
      * If an index buffer is in use, indexWidth specifies the width in
      * bytes of each index value. It must be less than or equal to
      * indexArray.stride.
      *
      * (Currently, the SVGA3D device requires index buffers to be tightly
      * packed. In other words, indexWidth == indexArray.stride)
      */
     SVGA3dArray          indexArray;
     uint32_t               indexWidth;
  
     /*
      * Optional index bias. This number is added to all indices from
      * indexArray before they are used as vertex array indices. This
      * can be used in multiple ways:
      *
      *  - When not using an indexArray, this bias can be used to
      *    specify where in the vertex arrays to begin rendering.
      *
      *  - A positive number here is equivalent to increasing the
      *    offset in each vertex array.
      *
      *  - A negative number can be used to render using a small
      *    vertex array and an index buffer that contains large
      *    values. This may be used by some applications that
      *    crop a vertex buffer without modifying their index
      *    buffer.
      *
      * Note that rendering with a negative bias value may be slower and
      * use more memory than rendering with a positive or zero bias.
      */
     int32_t                indexBias;
  } SVGA3dPrimitiveRange;
  
  typedef
  struct {
     uint32_t               cid;
     uint32_t               numVertexDecls;
     uint32_t               numRanges;
  
     /*
      * There are two variable size arrays after the
      * SVGA3dCmdDrawPrimitives structure. In order,
      * they are:
      *
      * 1. SVGA3dVertexDecl, quantity 'numVertexDecls', but no more than
      *    SVGA3D_MAX_VERTEX_ARRAYS;
      * 2. SVGA3dPrimitiveRange, quantity 'numRanges', but no more than
      *    SVGA3D_MAX_DRAW_PRIMITIVE_RANGES;
      * 3. Optionally, SVGA3dVertexDivisor, quantity 'numVertexDecls' (contains
      *    the frequency divisor for the corresponding vertex decl).
      */
  } SVGA3dCmdDrawPrimitives;      /* SVGA_3D_CMD_DRAWPRIMITIVES */
  
  typedef
  struct {
     uint32_t                   stage;
     SVGA3dTextureStateName   name;
     union {
        uint32_t                value;
        float                 floatValue;
     };
  } SVGA3dTextureState;
  
  typedef
  struct {
     uint32_t               cid;
     /* Followed by variable number of SVGA3dTextureState structures */
  } SVGA3dCmdSetTextureState;      /* SVGA_3D_CMD_SETTEXTURESTATE */
  
  typedef
  struct {
     uint32_t                   cid;
     SVGA3dTransformType      type;
     float                    matrix[16];
  } SVGA3dCmdSetTransform;          /* SVGA_3D_CMD_SETTRANSFORM */
  
  typedef
  struct {
     float                min;
     float                max;
  } SVGA3dZRange;
  
  typedef
  struct {
     uint32_t               cid;
     SVGA3dZRange         zRange;
  } SVGA3dCmdSetZRange;             /* SVGA_3D_CMD_SETZRANGE */
  
  typedef
  struct {
     float                diffuse[4];
     float                ambient[4];
     float                specular[4];
     float                emissive[4];
     float                shininess;
  } SVGA3dMaterial;
  
  typedef
  struct {
     uint32_t               cid;
     SVGA3dFace           face;
     SVGA3dMaterial       material;
  } SVGA3dCmdSetMaterial;           /* SVGA_3D_CMD_SETMATERIAL */
  
  typedef
  struct {
     uint32_t               cid;
     uint32_t               index;
     SVGA3dLightData      data;
  } SVGA3dCmdSetLightData;           /* SVGA_3D_CMD_SETLIGHTDATA */
  
  typedef
  struct {
     uint32_t               cid;
     uint32_t               index;
     uint32_t               enabled;
  } SVGA3dCmdSetLightEnabled;      /* SVGA_3D_CMD_SETLIGHTENABLED */
  
  typedef
  struct {
     uint32_t               cid;
     SVGA3dRect           rect;
  } SVGA3dCmdSetViewport;           /* SVGA_3D_CMD_SETVIEWPORT */
  
  typedef
  struct {
     uint32_t               cid;
     SVGA3dRect           rect;
  } SVGA3dCmdSetScissorRect;         /* SVGA_3D_CMD_SETSCISSORRECT */
  
  typedef
  struct {
     uint32_t               cid;
     uint32_t               index;
     float                plane[4];
  } SVGA3dCmdSetClipPlane;           /* SVGA_3D_CMD_SETCLIPPLANE */
  
  typedef
  struct {
     uint32_t               cid;
     uint32_t               shid;
     SVGA3dShaderType     type;
     /* Followed by variable number of DWORDs for shader bycode */
  } SVGA3dCmdDefineShader;           /* SVGA_3D_CMD_SHADER_DEFINE */
  
  typedef
  struct {
     uint32_t               cid;
     uint32_t               shid;
     SVGA3dShaderType     type;
  } SVGA3dCmdDestroyShader;         /* SVGA_3D_CMD_SHADER_DESTROY */
  
  typedef
  struct {
     uint32_t                  cid;
     uint32_t                  reg;     /* register number */
     SVGA3dShaderType        type;
     SVGA3dShaderConstType   ctype;
     uint32_t                  values[4];
  } SVGA3dCmdSetShaderConst;        /* SVGA_3D_CMD_SET_SHADER_CONST */
  
  typedef
  struct {
     uint32_t               cid;
     SVGA3dShaderType     type;
     uint32_t               shid;
  } SVGA3dCmdSetShader;             /* SVGA_3D_CMD_SET_SHADER */
  
  typedef
  struct {
     uint32_t               cid;
     SVGA3dQueryType      type;
  } SVGA3dCmdBeginQuery;           /* SVGA_3D_CMD_BEGIN_QUERY */
  
  typedef
  struct {
     uint32_t               cid;
     SVGA3dQueryType      type;
     SVGAGuestPtr         guestResult;  /* Points to an SVGA3dQueryResult structure */
  } SVGA3dCmdEndQuery;                  /* SVGA_3D_CMD_END_QUERY */
  
  typedef
  struct {
     uint32_t               cid;          /* Same parameters passed to END_QUERY */
     SVGA3dQueryType      type;
     SVGAGuestPtr         guestResult;
  } SVGA3dCmdWaitForQuery;              /* SVGA_3D_CMD_WAIT_FOR_QUERY */
  
  typedef
  struct {
     uint32_t               totalSize;    /* Set by guest before query is ended. */
     SVGA3dQueryState     state;        /* Set by host or guest. See SVGA3dQueryState. */
     union {                            /* Set by host on exit from PENDING state */
        uint32_t            result32;
     };
  } SVGA3dQueryResult;
  
  /*
   * SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN --
   *
   *    This is a blit from an SVGA3D surface to a Screen Object. Just
   *    like GMR-to-screen blits, this blit may be directed at a
   *    specific screen or to the virtual coordinate space.
   *
   *    The blit copies from a rectangular region of an SVGA3D surface
   *    image to a rectangular region of a screen or screens.
   *
   *    This command takes an optional variable-length list of clipping
   *    rectangles after the body of the command. If no rectangles are
   *    specified, there is no clipping region. The entire destRect is
   *    drawn to. If one or more rectangles are included, they describe
   *    a clipping region. The clip rectangle coordinates are measured
   *    relative to the top-left corner of destRect.
   *
   *    This clipping region serves multiple purposes:
   *
   *      - It can be used to perform an irregularly shaped blit more
   *        efficiently than by issuing many separate blit commands.
   *
   *      - It is equivalent to allowing blits with non-integer
   *        source coordinates. You could blit just one half-pixel
   *        of a source, for example, by specifying a larger
   *        destination rectangle than you need, then removing
   *        part of it using a clip rectangle.
   *
   * Availability:
   *    SVGA_FIFO_CAP_SCREEN_OBJECT
   *
   * Limitations:
   *
   *    - Currently, no backend supports blits from a mipmap or face
   *      other than the first one.
   */
  
  typedef
  struct {
     SVGA3dSurfaceImageId srcImage;
     SVGASignedRect       srcRect;
     uint32_t               destScreenId; /* Screen ID or SVGA_ID_INVALID for virt. coords */
     SVGASignedRect       destRect;     /* Supports scaling if src/rest different size */
     /* Clipping: zero or more SVGASignedRects follow */
  } SVGA3dCmdBlitSurfaceToScreen;         /* SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN */
  
  typedef
  struct {
     uint32_t               sid;
     SVGA3dTextureFilter  filter;
  } SVGA3dCmdGenerateMipmaps;             /* SVGA_3D_CMD_GENERATE_MIPMAPS */
  
  
  /*
   * Capability query index.
   *
   * Notes:
   *
   *   1. SVGA3D_DEVCAP_MAX_TEXTURES reflects the maximum number of
   *      fixed-function texture units available. Each of these units
   *      work in both FFP and Shader modes, and they support texture
   *      transforms and texture coordinates. The host may have additional
   *      texture image units that are only usable with shaders.
   *
   *   2. The BUFFER_FORMAT capabilities are deprecated, and they always
   *      return TRUE. Even on physical hardware that does not support
   *      these formats natively, the SVGA3D device will provide an emulation
   *      which should be invisible to the guest OS.
   *
   *      In general, the SVGA3D device should support any operation on
   *      any surface format, it just may perform some of these
   *      operations in software depending on the capabilities of the
   *      available physical hardware.
   *
   *      XXX: In the future, we will add capabilities that describe in
   *      detail what formats are supported in hardware for what kinds
   *      of operations.
   */
  
  typedef enum {
     SVGA3D_DEVCAP_3D                                = 0,
     SVGA3D_DEVCAP_MAX_LIGHTS                        = 1,
     SVGA3D_DEVCAP_MAX_TEXTURES                      = 2,  /* See note (1) */
     SVGA3D_DEVCAP_MAX_CLIP_PLANES                   = 3,
     SVGA3D_DEVCAP_VERTEX_SHADER_VERSION             = 4,
     SVGA3D_DEVCAP_VERTEX_SHADER                     = 5,
     SVGA3D_DEVCAP_FRAGMENT_SHADER_VERSION           = 6,
     SVGA3D_DEVCAP_FRAGMENT_SHADER                   = 7,
     SVGA3D_DEVCAP_MAX_RENDER_TARGETS                = 8,
     SVGA3D_DEVCAP_S23E8_TEXTURES                    = 9,
     SVGA3D_DEVCAP_S10E5_TEXTURES                    = 10,
     SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND             = 11,
     SVGA3D_DEVCAP_D16_BUFFER_FORMAT                 = 12, /* See note (2) */
     SVGA3D_DEVCAP_D24S8_BUFFER_FORMAT               = 13, /* See note (2) */
     SVGA3D_DEVCAP_D24X8_BUFFER_FORMAT               = 14, /* See note (2) */
     SVGA3D_DEVCAP_QUERY_TYPES                       = 15,
     SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING         = 16,
     SVGA3D_DEVCAP_MAX_POINT_SIZE                    = 17,
     SVGA3D_DEVCAP_MAX_SHADER_TEXTURES               = 18,
     SVGA3D_DEVCAP_MAX_TEXTURE_WIDTH                 = 19,
     SVGA3D_DEVCAP_MAX_TEXTURE_HEIGHT                = 20,
     SVGA3D_DEVCAP_MAX_VOLUME_EXTENT                 = 21,
     SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT                = 22,
     SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO          = 23,
     SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY            = 24,
     SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT               = 25,
     SVGA3D_DEVCAP_MAX_VERTEX_INDEX                  = 26,
     SVGA3D_DEVCAP_MAX_VERTEX_SHADER_INSTRUCTIONS    = 27,
     SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS  = 28,
     SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS           = 29,
     SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS         = 30,
     SVGA3D_DEVCAP_TEXTURE_OPS                       = 31,
     SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8               = 32,
     SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8               = 33,
     SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10            = 34,
     SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5               = 35,
     SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5               = 36,
     SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4               = 37,
     SVGA3D_DEVCAP_SURFACEFMT_R5G6B5                 = 38,
     SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16            = 39,
     SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8      = 40,
     SVGA3D_DEVCAP_SURFACEFMT_ALPHA8                 = 41,
     SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8             = 42,
     SVGA3D_DEVCAP_SURFACEFMT_Z_D16                  = 43,
     SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8                = 44,
     SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8                = 45,
     SVGA3D_DEVCAP_SURFACEFMT_DXT1                   = 46,
     SVGA3D_DEVCAP_SURFACEFMT_DXT2                   = 47,
     SVGA3D_DEVCAP_SURFACEFMT_DXT3                   = 48,
     SVGA3D_DEVCAP_SURFACEFMT_DXT4                   = 49,
     SVGA3D_DEVCAP_SURFACEFMT_DXT5                   = 50,
     SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8           = 51,
     SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10            = 52,
     SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8               = 53,
     SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8               = 54,
     SVGA3D_DEVCAP_SURFACEFMT_CxV8U8                 = 55,
     SVGA3D_DEVCAP_SURFACEFMT_R_S10E5                = 56,
     SVGA3D_DEVCAP_SURFACEFMT_R_S23E8                = 57,
     SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5               = 58,
     SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8               = 59,
     SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5             = 60,
     SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8             = 61,
     SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES        = 63,
  
     /*
      * Note that MAX_SIMULTANEOUS_RENDER_TARGETS is a maximum count of color
      * render targets.  This does no include the depth or stencil targets.
      */
     SVGA3D_DEVCAP_MAX_SIMULTANEOUS_RENDER_TARGETS   = 64,
  
     SVGA3D_DEVCAP_SURFACEFMT_V16U16                 = 65,
     SVGA3D_DEVCAP_SURFACEFMT_G16R16                 = 66,
     SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16           = 67,
     SVGA3D_DEVCAP_SURFACEFMT_UYVY                   = 68,
     SVGA3D_DEVCAP_SURFACEFMT_YUY2                   = 69,
     SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES    = 70,
     SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES       = 71,
     SVGA3D_DEVCAP_ALPHATOCOVERAGE                   = 72,
     SVGA3D_DEVCAP_SUPERSAMPLE                       = 73,
     SVGA3D_DEVCAP_AUTOGENMIPMAPS                    = 74,
     SVGA3D_DEVCAP_SURFACEFMT_NV12                   = 75,
     SVGA3D_DEVCAP_SURFACEFMT_AYUV                   = 76,
  
     /*
      * This is the maximum number of SVGA context IDs that the guest
      * can define using SVGA_3D_CMD_CONTEXT_DEFINE.
      */
     SVGA3D_DEVCAP_MAX_CONTEXT_IDS                   = 77,
  
     /*
      * This is the maximum number of SVGA surface IDs that the guest
      * can define using SVGA_3D_CMD_SURFACE_DEFINE*.
      */
     SVGA3D_DEVCAP_MAX_SURFACE_IDS                   = 78,
  
     SVGA3D_DEVCAP_SURFACEFMT_Z_DF16                 = 79,
     SVGA3D_DEVCAP_SURFACEFMT_Z_DF24                 = 80,
     SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT            = 81,
  
     SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM              = 82,
     SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM              = 83,
  
     /*
      * Don't add new caps into the previous section; the values in this
      * enumeration must not change. You can put new values right before
      * SVGA3D_DEVCAP_MAX.
      */
     SVGA3D_DEVCAP_MAX                                  /* This must be the last index. */
  } SVGA3dDevCapIndex;
  
  typedef union {
     bool   b;
     uint32_t u;
     int32_t  i;
     float  f;
  } SVGA3dDevCapResult;
  
  #endif /* _SVGA3D_REG_H_ */
  