src/mesa/main/dd.h

   1 /**
   2  * \file dd.h
   3  * Device driver interfaces.
   4  */
   5
   6 /*
   7  * Mesa 3-D graphics library
   8  * Version:  6.5.2
   9  *
  10  * Copyright (C) 1999-2006  Brian Paul   All Rights Reserved.
  11  *
  12  * Permission is hereby granted, free of charge, to any person obtaining a
  13  * copy of this software and associated documentation files (the "Software"),
  14  * to deal in the Software without restriction, including without limitation
  15  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  16  * and/or sell copies of the Software, and to permit persons to whom the
  17  * Software is furnished to do so, subject to the following conditions:
  18  *
  19  * The above copyright notice and this permission notice shall be included
  20  * in all copies or substantial portions of the Software.
  21  *
  22  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  23  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  24  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  25  * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  26  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  27  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  28  */
  29
  30
  31 #ifndef DD_INCLUDED
  32 #define DD_INCLUDED
  33
  34 /* THIS FILE ONLY INCLUDED BY mtypes.h !!!!! */
  35
  36 #include "glheader.h"
  37
  38 struct gl_buffer_object;
  39 struct gl_context;
  40 struct gl_display_list;
  41 struct gl_framebuffer;
  42 struct gl_pixelstore_attrib;
  43 struct gl_program;
  44 struct gl_renderbuffer;
  45 struct gl_renderbuffer_attachment;
  46 struct gl_shader;
  47 struct gl_shader_program;
  48 struct gl_texture_image;
  49 struct gl_texture_object;
  50
  51 /* GL_ARB_vertex_buffer_object */
  52 /* Modifies GL_MAP_UNSYNCHRONIZED_BIT to allow driver to fail (return
  53  * NULL) if buffer is unavailable for immediate mapping.
  54  *
  55  * Does GL_MAP_INVALIDATE_RANGE_BIT do this?  It seems so, but it
  56  * would require more book-keeping in the driver than seems necessary
  57  * at this point.
  58  *
  59  * Does GL_MAP_INVALDIATE_BUFFER_BIT do this?  Not really -- we don't
  60  * want to provoke the driver to throw away the old storage, we will
  61  * respect the contents of already referenced data.
  62  */
  63 #define MESA_MAP_NOWAIT_BIT       0x0040
  64
  65
  66 /**
  67  * Device driver function table.
  68  * Core Mesa uses these function pointers to call into device drivers.
  69  * Most of these functions directly correspond to OpenGL state commands.
  70  * Core Mesa will call these functions after error checking has been done
  71  * so that the drivers don't have to worry about error testing.
  72  *
  73  * Vertex transformation/clipping/lighting is patched into the T&L module.
  74  * Rasterization functions are patched into the swrast module.
  75  *
  76  * Note: when new functions are added here, the drivers/common/driverfuncs.c
  77  * file should be updated too!!!
  78  */
  79 struct dd_function_table {
  80    /**
  81     * Return a string as needed by glGetString().
  82     * Only the GL_RENDERER query must be implemented.  Otherwise, NULL can be
  83     * returned.
  84     */
  85    const GLubyte * (*GetString)( struct gl_context *ctx, GLenum name );
  86
  87    /**
  88     * Notify the driver after Mesa has made some internal state changes.
  89     *
  90     * This is in addition to any state change callbacks Mesa may already have
  91     * made.
  92     */
  93    void (*UpdateState)( struct gl_context *ctx, GLbitfield new_state );
  94
  95    /**
  96     * Get the width and height of the named buffer/window.
  97     *
  98     * Mesa uses this to determine when the driver's window size has changed.
  99     * XXX OBSOLETE: this function will be removed in the future.
 100     */
 101    void (*GetBufferSize)( struct gl_framebuffer *buffer,
 102                           GLuint *width, GLuint *height );
 103
 104    /**
 105     * Resize the given framebuffer to the given size.
 106     * XXX OBSOLETE: this function will be removed in the future.
 107     */
 108    void (*ResizeBuffers)( struct gl_context *ctx, struct gl_framebuffer *fb,
 109                           GLuint width, GLuint height);
 110
 111    /**
 112     * Called whenever an error is generated.
 113     * __struct gl_contextRec::ErrorValue contains the error value.
 114     */
 115    void (*Error)( struct gl_context *ctx );
 116
 117    /**
 118     * This is called whenever glFinish() is called.
 119     */
 120    void (*Finish)( struct gl_context *ctx );
 121
 122    /**
 123     * This is called whenever glFlush() is called.
 124     */
 125    void (*Flush)( struct gl_context *ctx );
 126
 127    /**
 128     * Clear the color/depth/stencil/accum buffer(s).
 129     * \param buffers  a bitmask of BUFFER_BIT_* flags indicating which
 130     *                 renderbuffers need to be cleared.
 131     */
 132    void (*Clear)( struct gl_context *ctx, GLbitfield buffers );
 133
 134    /**
 135     * Execute glAccum command.
 136     */
 137    void (*Accum)( struct gl_context *ctx, GLenum op, GLfloat value );
 138
 139
 140    /**
 141     * Execute glRasterPos, updating the ctx->Current.Raster fields
 142     */
 143    void (*RasterPos)( struct gl_context *ctx, const GLfloat v[4] );
 144
 145    /**
 146     * \name Image-related functions
 147     */
 148    /*@{*/
 149
 150    /**
 151     * Called by glDrawPixels().
 152     * \p unpack describes how to unpack the source image data.
 153     */
 154    void (*DrawPixels)( struct gl_context *ctx,
 155                        GLint x, GLint y, GLsizei width, GLsizei height,
 156                        GLenum format, GLenum type,
 157                        const struct gl_pixelstore_attrib *unpack,
 158                        const GLvoid *pixels );
 159
 160    /**
 161     * Called by glReadPixels().
 162     */
 163    void (*ReadPixels)( struct gl_context *ctx,
 164                        GLint x, GLint y, GLsizei width, GLsizei height,
 165                        GLenum format, GLenum type,
 166                        const struct gl_pixelstore_attrib *unpack,
 167                        GLvoid *dest );
 168
 169    /**
 170     * Called by glCopyPixels().
 171     */
 172    void (*CopyPixels)( struct gl_context *ctx, GLint srcx, GLint srcy,
 173                        GLsizei width, GLsizei height,
 174                        GLint dstx, GLint dsty, GLenum type );
 175
 176    /**
 177     * Called by glBitmap().
 178     */
 179    void (*Bitmap)( struct gl_context *ctx,
 180                    GLint x, GLint y, GLsizei width, GLsizei height,
 181                    const struct gl_pixelstore_attrib *unpack,
 182                    const GLubyte *bitmap );
 183    /*@}*/
 184
 185
 186    /**
 187     * \name Texture image functions
 188     */
 189    /*@{*/
 190
 191    /**
 192     * Choose actual hardware texture format given the user-provided source
 193     * image format and type and the desired internal format.  In some
 194     * cases, srcFormat and srcType can be GL_NONE.
 195     * Called by glTexImage(), etc.
 196     */
 197    gl_format (*ChooseTextureFormat)( struct gl_context *ctx, GLint internalFormat,
 198                                      GLenum srcFormat, GLenum srcType );
 199
 200    /**
 201     * Called by glTexImage1D().  Simply copy the source texture data into the
 202     * destination texture memory.  The gl_texture_image fields, etc. will be
 203     * fully initialized.
 204     * The parameters are the same as glTexImage1D(), plus:
 205     * \param packing describes how to unpack the source data.
 206     * \param texObj is the target texture object.
 207     * \param texImage is the target texture image.
 208     */
 209    void (*TexImage1D)( struct gl_context *ctx, GLenum target, GLint level,
 210                        GLint internalFormat,
 211                        GLint width, GLint border,
 212                        GLenum format, GLenum type, const GLvoid *pixels,
 213                        const struct gl_pixelstore_attrib *packing,
 214                        struct gl_texture_object *texObj,
 215                        struct gl_texture_image *texImage );
 216
 217    /**
 218     * Called by glTexImage2D().
 219     *
 220     * \sa dd_function_table::TexImage1D.
 221     */
 222    void (*TexImage2D)( struct gl_context *ctx, GLenum target, GLint level,
 223                        GLint internalFormat,
 224                        GLint width, GLint height, GLint border,
 225                        GLenum format, GLenum type, const GLvoid *pixels,
 226                        const struct gl_pixelstore_attrib *packing,
 227                        struct gl_texture_object *texObj,
 228                        struct gl_texture_image *texImage );
 229
 230    /**
 231     * Called by glTexImage3D().
 232     *
 233     * \sa dd_function_table::TexImage1D.
 234     */
 235    void (*TexImage3D)( struct gl_context *ctx, GLenum target, GLint level,
 236                        GLint internalFormat,
 237                        GLint width, GLint height, GLint depth, GLint border,
 238                        GLenum format, GLenum type, const GLvoid *pixels,
 239                        const struct gl_pixelstore_attrib *packing,
 240                        struct gl_texture_object *texObj,
 241                        struct gl_texture_image *texImage );
 242
 243    /**
 244     * Called by glTexSubImage1D().  Replace a subset of the target texture
 245     * with new texel data.
 246     * \sa dd_function_table::TexImage1D.
 247     */
 248    void (*TexSubImage1D)( struct gl_context *ctx, GLenum target, GLint level,
 249                           GLint xoffset, GLsizei width,
 250                           GLenum format, GLenum type,
 251                           const GLvoid *pixels,
 252                           const struct gl_pixelstore_attrib *packing,
 253                           struct gl_texture_object *texObj,
 254                           struct gl_texture_image *texImage );
 255
 256    /**
 257     * Called by glTexSubImage2D().
 258     *
 259     * \sa dd_function_table::TexSubImage1D.
 260     */
 261    void (*TexSubImage2D)( struct gl_context *ctx, GLenum target, GLint level,
 262                           GLint xoffset, GLint yoffset,
 263                           GLsizei width, GLsizei height,
 264                           GLenum format, GLenum type,
 265                           const GLvoid *pixels,
 266                           const struct gl_pixelstore_attrib *packing,
 267                           struct gl_texture_object *texObj,
 268                           struct gl_texture_image *texImage );
 269
 270    /**
 271     * Called by glTexSubImage3D().
 272     *
 273     * \sa dd_function_table::TexSubImage1D.
 274     */
 275    void (*TexSubImage3D)( struct gl_context *ctx, GLenum target, GLint level,
 276                           GLint xoffset, GLint yoffset, GLint zoffset,
 277                           GLsizei width, GLsizei height, GLint depth,
 278                           GLenum format, GLenum type,
 279                           const GLvoid *pixels,
 280                           const struct gl_pixelstore_attrib *packing,
 281                           struct gl_texture_object *texObj,
 282                           struct gl_texture_image *texImage );
 283
 284    /**
 285     * Called by glGetTexImage().
 286     */
 287    void (*GetTexImage)( struct gl_context *ctx, GLenum target, GLint level,
 288                         GLenum format, GLenum type, GLvoid *pixels,
 289                         struct gl_texture_object *texObj,
 290                         struct gl_texture_image *texImage );
 291
 292    /**
 293     * Called by glCopyTexSubImage1D().
 294     *
 295     * Drivers should use a fallback routine from texstore.c if needed.
 296     */
 297    void (*CopyTexSubImage1D)( struct gl_context *ctx, GLenum target, GLint level,
 298                               GLint xoffset,
 299                               GLint x, GLint y, GLsizei width );
 300    /**
 301     * Called by glCopyTexSubImage2D().
 302     *
 303     * Drivers should use a fallback routine from texstore.c if needed.
 304     */
 305    void (*CopyTexSubImage2D)( struct gl_context *ctx, GLenum target, GLint level,
 306                               GLint xoffset, GLint yoffset,
 307                               GLint x, GLint y,
 308                               GLsizei width, GLsizei height );
 309    /**
 310     * Called by glCopyTexSubImage3D().
 311     *
 312     * Drivers should use a fallback routine from texstore.c if needed.
 313     */
 314    void (*CopyTexSubImage3D)( struct gl_context *ctx, GLenum target, GLint level,
 315                               GLint xoffset, GLint yoffset, GLint zoffset,
 316                               GLint x, GLint y,
 317                               GLsizei width, GLsizei height );
 318
 319    /**
 320     * Called by glGenerateMipmap() or when GL_GENERATE_MIPMAP_SGIS is enabled.
 321     */
 322    void (*GenerateMipmap)(struct gl_context *ctx, GLenum target,
 323                           struct gl_texture_object *texObj);
 324
 325    /**
 326     * Called by glTexImage[123]D when user specifies a proxy texture
 327     * target.
 328     *
 329     * \return GL_TRUE if the proxy test passes, or GL_FALSE if the test fails.
 330     */
 331    GLboolean (*TestProxyTexImage)(struct gl_context *ctx, GLenum target,
 332                                   GLint level, GLint internalFormat,
 333                                   GLenum format, GLenum type,
 334                                   GLint width, GLint height,
 335                                   GLint depth, GLint border);
 336    /*@}*/
 337
 338
 339    /**
 340     * \name Compressed texture functions
 341     */
 342    /*@{*/
 343
 344    /**
 345     * Called by glCompressedTexImage1D().
 346     *
 347     * \param target user specified.
 348     * \param format user specified.
 349     * \param type user specified.
 350     * \param pixels user specified.
 351     * \param packing indicates the image packing of pixels.
 352     * \param texObj is the target texture object.
 353     * \param texImage is the target texture image.  It will have the texture \p
 354     * width, \p height, \p depth, \p border and \p internalFormat information.
 355     *
 356     * \a retainInternalCopy is returned by this function and indicates whether
 357     * core Mesa should keep an internal copy of the texture image.
 358     */
 359    void (*CompressedTexImage1D)( struct gl_context *ctx, GLenum target,
 360                                  GLint level, GLint internalFormat,
 361                                  GLsizei width, GLint border,
 362                                  GLsizei imageSize, const GLvoid *data,
 363                                  struct gl_texture_object *texObj,
 364                                  struct gl_texture_image *texImage );
 365    /**
 366     * Called by glCompressedTexImage2D().
 367     *
 368     * \sa dd_function_table::CompressedTexImage1D.
 369     */
 370    void (*CompressedTexImage2D)( struct gl_context *ctx, GLenum target,
 371                                  GLint level, GLint internalFormat,
 372                                  GLsizei width, GLsizei height, GLint border,
 373                                  GLsizei imageSize, const GLvoid *data,
 374                                  struct gl_texture_object *texObj,
 375                                  struct gl_texture_image *texImage );
 376    /**
 377     * Called by glCompressedTexImage3D().
 378     *
 379     * \sa dd_function_table::CompressedTexImage3D.
 380     */
 381    void (*CompressedTexImage3D)( struct gl_context *ctx, GLenum target,
 382                                  GLint level, GLint internalFormat,
 383                                  GLsizei width, GLsizei height, GLsizei depth,
 384                                  GLint border,
 385                                  GLsizei imageSize, const GLvoid *data,
 386                                  struct gl_texture_object *texObj,
 387                                  struct gl_texture_image *texImage );
 388
 389    /**
 390     * Called by glCompressedTexSubImage1D().
 391     *
 392     * \param target user specified.
 393     * \param level user specified.
 394     * \param xoffset user specified.
 395     * \param yoffset user specified.
 396     * \param zoffset user specified.
 397     * \param width user specified.
 398     * \param height user specified.
 399     * \param depth user specified.
 400     * \param imageSize user specified.
 401     * \param data user specified.
 402     * \param texObj is the target texture object.
 403     * \param texImage is the target texture image.  It will have the texture \p
 404     * width, \p height, \p depth, \p border and \p internalFormat information.
 405     */
 406    void (*CompressedTexSubImage1D)(struct gl_context *ctx, GLenum target, GLint level,
 407                                    GLint xoffset, GLsizei width,
 408                                    GLenum format,
 409                                    GLsizei imageSize, const GLvoid *data,
 410                                    struct gl_texture_object *texObj,
 411                                    struct gl_texture_image *texImage);
 412    /**
 413     * Called by glCompressedTexSubImage2D().
 414     *
 415     * \sa dd_function_table::CompressedTexImage3D.
 416     */
 417    void (*CompressedTexSubImage2D)(struct gl_context *ctx, GLenum target, GLint level,
 418                                    GLint xoffset, GLint yoffset,
 419                                    GLsizei width, GLint height,
 420                                    GLenum format,
 421                                    GLsizei imageSize, const GLvoid *data,
 422                                    struct gl_texture_object *texObj,
 423                                    struct gl_texture_image *texImage);
 424    /**
 425     * Called by glCompressedTexSubImage3D().
 426     *
 427     * \sa dd_function_table::CompressedTexImage3D.
 428     */
 429    void (*CompressedTexSubImage3D)(struct gl_context *ctx, GLenum target, GLint level,
 430                                    GLint xoffset, GLint yoffset, GLint zoffset,
 431                                    GLsizei width, GLint height, GLint depth,
 432                                    GLenum format,
 433                                    GLsizei imageSize, const GLvoid *data,
 434                                    struct gl_texture_object *texObj,
 435                                    struct gl_texture_image *texImage);
 436
 437
 438    /**
 439     * Called by glGetCompressedTexImage.
 440     */
 441    void (*GetCompressedTexImage)(struct gl_context *ctx, GLenum target, GLint level,
 442                                  GLvoid *img,
 443                                  struct gl_texture_object *texObj,
 444                                  struct gl_texture_image *texImage);
 445
 446    /*@}*/
 447
 448    /**
 449     * \name Texture object functions
 450     */
 451    /*@{*/
 452
 453    /**
 454     * Called by glBindTexture().
 455     */
 456    void (*BindTexture)( struct gl_context *ctx, GLenum target,
 457                         struct gl_texture_object *tObj );
 458
 459    /**
 460     * Called to allocate a new texture object.
 461     * A new gl_texture_object should be returned.  The driver should
 462     * attach to it any device-specific info it needs.
 463     */
 464    struct gl_texture_object * (*NewTextureObject)( struct gl_context *ctx, GLuint name,
 465                                                    GLenum target );
 466    /**
 467     * Called when a texture object is about to be deallocated.
 468     *
 469     * Driver should delete the gl_texture_object object and anything
 470     * hanging off of it.
 471     */
 472    void (*DeleteTexture)( struct gl_context *ctx, struct gl_texture_object *tObj );
 473
 474    /**
 475     * Called to allocate a new texture image object.
 476     */
 477    struct gl_texture_image * (*NewTextureImage)( struct gl_context *ctx );
 478
 479    /**
 480     * Called to free tImage->Data.
 481     */
 482    void (*FreeTextureImageBuffer)( struct gl_context *ctx, struct gl_texture_image *tImage );
 483
 484    /** Map a slice of a texture image into user space.
 485     * \param texImage  the texture image
 486     * \param slice  the 3D image slice or array texture slice
 487     * \param x, y, w, h  region of interest
 488     * \param mode  bitmask of GL_MAP_READ_BIT, GL_MAP_WRITE_BIT
 489     * \param mapOut  returns start of mapping of region of interest
 490     * \param rowStrideOut  returns row stride (in bytes)
 491     */
 492    void (*MapTextureImage)(struct gl_context *ctx,
 493                            struct gl_texture_image *texImage,
 494                            GLuint slice,
 495                            GLuint x, GLuint y, GLuint w, GLuint h,
 496                            GLbitfield mode,
 497                            GLubyte **mapOut, GLint *rowStrideOut);
 498
 499    void (*UnmapTextureImage)(struct gl_context *ctx,
 500                              struct gl_texture_image *texImage,
 501                              GLuint slice);
 502
 503    /** Map texture image data into user space */
 504    void (*MapTexture)( struct gl_context *ctx, struct gl_texture_object *tObj );
 505    /** Unmap texture images from user space */
 506    void (*UnmapTexture)( struct gl_context *ctx, struct gl_texture_object *tObj );
 507
 508    /**
 509     * Note: no context argument.  This function doesn't initially look
 510     * like it belongs here, except that the driver is the only entity
 511     * that knows for sure how the texture memory is allocated - via
 512     * the above callbacks.  There is then an argument that the driver
 513     * knows what memcpy paths might be fast.  Typically this is invoked with
 514     *
 515     * to -- a pointer into texture memory allocated by NewTextureImage() above.
 516     * from -- a pointer into client memory or a mesa temporary.
 517     * sz -- nr bytes to copy.
 518     */
 519    void* (*TextureMemCpy)( void *to, const void *from, size_t sz );
 520
 521    /**
 522     * Called by glAreTextureResident().
 523     */
 524    GLboolean (*IsTextureResident)( struct gl_context *ctx,
 525                                    struct gl_texture_object *t );
 526
 527    /**
 528     * Called when the texture's color lookup table is changed.
 529     *
 530     * If \p tObj is NULL then the shared texture palette
 531     * gl_texture_object::Palette is to be updated.
 532     */
 533    void (*UpdateTexturePalette)( struct gl_context *ctx,
 534                                  struct gl_texture_object *tObj );
 535    /*@}*/
 536
 537
 538    /**
 539     * \name Imaging functionality
 540     */
 541    /*@{*/
 542    void (*CopyColorTable)( struct gl_context *ctx,
 543                            GLenum target, GLenum internalformat,
 544                            GLint x, GLint y, GLsizei width );
 545
 546    void (*CopyColorSubTable)( struct gl_context *ctx,
 547                               GLenum target, GLsizei start,
 548                               GLint x, GLint y, GLsizei width );
 549    /*@}*/
 550
 551
 552    /**
 553     * \name Vertex/fragment program functions
 554     */
 555    /*@{*/
 556    /** Bind a vertex/fragment program */
 557    void (*BindProgram)(struct gl_context *ctx, GLenum target, struct gl_program *prog);
 558    /** Allocate a new program */
 559    struct gl_program * (*NewProgram)(struct gl_context *ctx, GLenum target, GLuint id);
 560    /** Delete a program */
 561    void (*DeleteProgram)(struct gl_context *ctx, struct gl_program *prog);
 562    /**
 563     * Notify driver that a program string (and GPU code) has been specified
 564     * or modified.  Return GL_TRUE or GL_FALSE to indicate if the program is
 565     * supported by the driver.
 566     */
 567    GLboolean (*ProgramStringNotify)(struct gl_context *ctx, GLenum target,
 568                                     struct gl_program *prog);
 569
 570    /** Query if program can be loaded onto hardware */
 571    GLboolean (*IsProgramNative)(struct gl_context *ctx, GLenum target,
 572                                 struct gl_program *prog);
 573
 574    /*@}*/
 575
 576    /**
 577     * \name GLSL shader/program functions.
 578     */
 579    /*@{*/
 580    /**
 581     * Called when a shader program is linked.
 582     *
 583     * This gives drivers an opportunity to clone the IR and make their
 584     * own transformations on it for the purposes of code generation.
 585     */
 586    GLboolean (*LinkShader)(struct gl_context *ctx, struct gl_shader_program *shader);
 587    /*@}*/
 588
 589    /**
 590     * \name State-changing functions.
 591     *
 592     * \note drawing functions are above.
 593     *
 594     * These functions are called by their corresponding OpenGL API functions.
 595     * They are \e also called by the gl_PopAttrib() function!!!
 596     * May add more functions like these to the device driver in the future.
 597     */
 598    /*@{*/
 599    /** Specify the alpha test function */
 600    void (*AlphaFunc)(struct gl_context *ctx, GLenum func, GLfloat ref);
 601    /** Set the blend color */
 602    void (*BlendColor)(struct gl_context *ctx, const GLfloat color[4]);
 603    /** Set the blend equation */
 604    void (*BlendEquationSeparate)(struct gl_context *ctx, GLenum modeRGB, GLenum modeA);
 605    void (*BlendEquationSeparatei)(struct gl_context *ctx, GLuint buffer,
 606                                   GLenum modeRGB, GLenum modeA);
 607    /** Specify pixel arithmetic */
 608    void (*BlendFuncSeparate)(struct gl_context *ctx,
 609                              GLenum sfactorRGB, GLenum dfactorRGB,
 610                              GLenum sfactorA, GLenum dfactorA);
 611    void (*BlendFuncSeparatei)(struct gl_context *ctx, GLuint buffer,
 612                               GLenum sfactorRGB, GLenum dfactorRGB,
 613                               GLenum sfactorA, GLenum dfactorA);
 614    /** Specify clear values for the color buffers */
 615    void (*ClearColor)(struct gl_context *ctx, const GLfloat color[4]);
 616    /** Specify the clear value for the depth buffer */
 617    void (*ClearDepth)(struct gl_context *ctx, GLclampd d);
 618    /** Specify the clear value for the stencil buffer */
 619    void (*ClearStencil)(struct gl_context *ctx, GLint s);
 620    /** Specify a plane against which all geometry is clipped */
 621    void (*ClipPlane)(struct gl_context *ctx, GLenum plane, const GLfloat *equation );
 622    /** Enable and disable writing of frame buffer color components */
 623    void (*ColorMask)(struct gl_context *ctx, GLboolean rmask, GLboolean gmask,
 624                      GLboolean bmask, GLboolean amask );
 625    void (*ColorMaskIndexed)(struct gl_context *ctx, GLuint buf, GLboolean rmask,
 626                             GLboolean gmask, GLboolean bmask, GLboolean amask);
 627    /** Cause a material color to track the current color */
 628    void (*ColorMaterial)(struct gl_context *ctx, GLenum face, GLenum mode);
 629    /** Specify whether front- or back-facing facets can be culled */
 630    void (*CullFace)(struct gl_context *ctx, GLenum mode);
 631    /** Define front- and back-facing polygons */
 632    void (*FrontFace)(struct gl_context *ctx, GLenum mode);
 633    /** Specify the value used for depth buffer comparisons */
 634    void (*DepthFunc)(struct gl_context *ctx, GLenum func);
 635    /** Enable or disable writing into the depth buffer */
 636    void (*DepthMask)(struct gl_context *ctx, GLboolean flag);
 637    /** Specify mapping of depth values from NDC to window coordinates */
 638    void (*DepthRange)(struct gl_context *ctx, GLclampd nearval, GLclampd farval);
 639    /** Specify the current buffer for writing */
 640    void (*DrawBuffer)( struct gl_context *ctx, GLenum buffer );
 641    /** Specify the buffers for writing for fragment programs*/
 642    void (*DrawBuffers)( struct gl_context *ctx, GLsizei n, const GLenum *buffers );
 643    /** Enable or disable server-side gl capabilities */
 644    void (*Enable)(struct gl_context *ctx, GLenum cap, GLboolean state);
 645    /** Specify fog parameters */
 646    void (*Fogfv)(struct gl_context *ctx, GLenum pname, const GLfloat *params);
 647    /** Specify implementation-specific hints */
 648    void (*Hint)(struct gl_context *ctx, GLenum target, GLenum mode);
 649    /** Set light source parameters.
 650     * Note: for GL_POSITION and GL_SPOT_DIRECTION, params will have already
 651     * been transformed to eye-space.
 652     */
 653    void (*Lightfv)(struct gl_context *ctx, GLenum light,
 654                    GLenum pname, const GLfloat *params );
 655    /** Set the lighting model parameters */
 656    void (*LightModelfv)(struct gl_context *ctx, GLenum pname, const GLfloat *params);
 657    /** Specify the line stipple pattern */
 658    void (*LineStipple)(struct gl_context *ctx, GLint factor, GLushort pattern );
 659    /** Specify the width of rasterized lines */
 660    void (*LineWidth)(struct gl_context *ctx, GLfloat width);
 661    /** Specify a logical pixel operation for color index rendering */
 662    void (*LogicOpcode)(struct gl_context *ctx, GLenum opcode);
 663    void (*PointParameterfv)(struct gl_context *ctx, GLenum pname,
 664                             const GLfloat *params);
 665    /** Specify the diameter of rasterized points */
 666    void (*PointSize)(struct gl_context *ctx, GLfloat size);
 667    /** Select a polygon rasterization mode */
 668    void (*PolygonMode)(struct gl_context *ctx, GLenum face, GLenum mode);
 669    /** Set the scale and units used to calculate depth values */
 670    void (*PolygonOffset)(struct gl_context *ctx, GLfloat factor, GLfloat units);
 671    /** Set the polygon stippling pattern */
 672    void (*PolygonStipple)(struct gl_context *ctx, const GLubyte *mask );
 673    /* Specifies the current buffer for reading */
 674    void (*ReadBuffer)( struct gl_context *ctx, GLenum buffer );
 675    /** Set rasterization mode */
 676    void (*RenderMode)(struct gl_context *ctx, GLenum mode );
 677    /** Define the scissor box */
 678    void (*Scissor)(struct gl_context *ctx, GLint x, GLint y, GLsizei w, GLsizei h);
 679    /** Select flat or smooth shading */
 680    void (*ShadeModel)(struct gl_context *ctx, GLenum mode);
 681    /** OpenGL 2.0 two-sided StencilFunc */
 682    void (*StencilFuncSeparate)(struct gl_context *ctx, GLenum face, GLenum func,
 683                                GLint ref, GLuint mask);
 684    /** OpenGL 2.0 two-sided StencilMask */
 685    void (*StencilMaskSeparate)(struct gl_context *ctx, GLenum face, GLuint mask);
 686    /** OpenGL 2.0 two-sided StencilOp */
 687    void (*StencilOpSeparate)(struct gl_context *ctx, GLenum face, GLenum fail,
 688                              GLenum zfail, GLenum zpass);
 689    /** Control the generation of texture coordinates */
 690    void (*TexGen)(struct gl_context *ctx, GLenum coord, GLenum pname,
 691                   const GLfloat *params);
 692    /** Set texture environment parameters */
 693    void (*TexEnv)(struct gl_context *ctx, GLenum target, GLenum pname,
 694                   const GLfloat *param);
 695    /** Set texture parameters */
 696    void (*TexParameter)(struct gl_context *ctx, GLenum target,
 697                         struct gl_texture_object *texObj,
 698                         GLenum pname, const GLfloat *params);
 699    /** Set the viewport */
 700    void (*Viewport)(struct gl_context *ctx, GLint x, GLint y, GLsizei w, GLsizei h);
 701    /*@}*/
 702
 703
 704    /**
 705     * \name Vertex/pixel buffer object functions
 706     */
 707    /*@{*/
 708    void (*BindBuffer)( struct gl_context *ctx, GLenum target,
 709                        struct gl_buffer_object *obj );
 710
 711    struct gl_buffer_object * (*NewBufferObject)( struct gl_context *ctx, GLuint buffer,
 712                                                  GLenum target );
 713
 714    void (*DeleteBuffer)( struct gl_context *ctx, struct gl_buffer_object *obj );
 715
 716    GLboolean (*BufferData)( struct gl_context *ctx, GLenum target, GLsizeiptrARB size,
 717                             const GLvoid *data, GLenum usage,
 718                             struct gl_buffer_object *obj );
 719
 720    void (*BufferSubData)( struct gl_context *ctx, GLintptrARB offset,
 721                           GLsizeiptrARB size, const GLvoid *data,
 722                           struct gl_buffer_object *obj );
 723
 724    void (*GetBufferSubData)( struct gl_context *ctx,
 725                              GLintptrARB offset, GLsizeiptrARB size,
 726                              GLvoid *data, struct gl_buffer_object *obj );
 727
 728    void (*CopyBufferSubData)( struct gl_context *ctx,
 729                               struct gl_buffer_object *src,
 730                               struct gl_buffer_object *dst,
 731                               GLintptr readOffset, GLintptr writeOffset,
 732                               GLsizeiptr size );
 733
 734    /* May return NULL if MESA_MAP_NOWAIT_BIT is set in access:
 735     */
 736    void * (*MapBufferRange)( struct gl_context *ctx, GLintptr offset,
 737                              GLsizeiptr length, GLbitfield access,
 738                              struct gl_buffer_object *obj);
 739
 740    void (*FlushMappedBufferRange)(struct gl_context *ctx,
 741                                   GLintptr offset, GLsizeiptr length,
 742                                   struct gl_buffer_object *obj);
 743
 744    GLboolean (*UnmapBuffer)( struct gl_context *ctx,
 745                              struct gl_buffer_object *obj );
 746    /*@}*/
 747
 748    /**
 749     * \name Functions for GL_APPLE_object_purgeable
 750     */
 751    /*@{*/
 752    /* variations on ObjectPurgeable */
 753    GLenum (*BufferObjectPurgeable)( struct gl_context *ctx, struct gl_buffer_object *obj, GLenum option );
 754    GLenum (*RenderObjectPurgeable)( struct gl_context *ctx, struct gl_renderbuffer *obj, GLenum option );
 755    GLenum (*TextureObjectPurgeable)( struct gl_context *ctx, struct gl_texture_object *obj, GLenum option );
 756
 757    /* variations on ObjectUnpurgeable */
 758    GLenum (*BufferObjectUnpurgeable)( struct gl_context *ctx, struct gl_buffer_object *obj, GLenum option );
 759    GLenum (*RenderObjectUnpurgeable)( struct gl_context *ctx, struct gl_renderbuffer *obj, GLenum option );
 760    GLenum (*TextureObjectUnpurgeable)( struct gl_context *ctx, struct gl_texture_object *obj, GLenum option );
 761    /*@}*/
 762
 763    /**
 764     * \name Functions for GL_EXT_framebuffer_{object,blit}.
 765     */
 766    /*@{*/
 767    struct gl_framebuffer * (*NewFramebuffer)(struct gl_context *ctx, GLuint name);
 768    struct gl_renderbuffer * (*NewRenderbuffer)(struct gl_context *ctx, GLuint name);
 769    void (*BindFramebuffer)(struct gl_context *ctx, GLenum target,
 770                            struct gl_framebuffer *drawFb,
 771                            struct gl_framebuffer *readFb);
 772    void (*FramebufferRenderbuffer)(struct gl_context *ctx,
 773                                    struct gl_framebuffer *fb,
 774                                    GLenum attachment,
 775                                    struct gl_renderbuffer *rb);
 776    void (*RenderTexture)(struct gl_context *ctx,
 777                          struct gl_framebuffer *fb,
 778                          struct gl_renderbuffer_attachment *att);
 779    void (*FinishRenderTexture)(struct gl_context *ctx,
 780                                struct gl_renderbuffer_attachment *att);
 781    void (*ValidateFramebuffer)(struct gl_context *ctx,
 782                                struct gl_framebuffer *fb);
 783    /*@}*/
 784    void (*BlitFramebuffer)(struct gl_context *ctx,
 785                            GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,
 786                            GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1,
 787                            GLbitfield mask, GLenum filter);
 788
 789    /**
 790     * \name Query objects
 791     */
 792    /*@{*/
 793    struct gl_query_object * (*NewQueryObject)(struct gl_context *ctx, GLuint id);
 794    void (*DeleteQuery)(struct gl_context *ctx, struct gl_query_object *q);
 795    void (*BeginQuery)(struct gl_context *ctx, struct gl_query_object *q);
 796    void (*EndQuery)(struct gl_context *ctx, struct gl_query_object *q);
 797    void (*CheckQuery)(struct gl_context *ctx, struct gl_query_object *q);
 798    void (*WaitQuery)(struct gl_context *ctx, struct gl_query_object *q);
 799    /*@}*/
 800
 801
 802    /**
 803     * \name Vertex Array objects
 804     */
 805    /*@{*/
 806    struct gl_array_object * (*NewArrayObject)(struct gl_context *ctx, GLuint id);
 807    void (*DeleteArrayObject)(struct gl_context *ctx, struct gl_array_object *obj);
 808    void (*BindArrayObject)(struct gl_context *ctx, struct gl_array_object *obj);
 809    /*@}*/
 810
 811    /**
 812     * \name GLSL-related functions (ARB extensions and OpenGL 2.x)
 813     */
 814    /*@{*/
 815    struct gl_shader *(*NewShader)(struct gl_context *ctx, GLuint name, GLenum type);
 816    void (*DeleteShader)(struct gl_context *ctx, struct gl_shader *shader);
 817    struct gl_shader_program *(*NewShaderProgram)(struct gl_context *ctx, GLuint name);
 818    void (*DeleteShaderProgram)(struct gl_context *ctx,
 819                                struct gl_shader_program *shProg);
 820    void (*UseProgram)(struct gl_context *ctx, struct gl_shader_program *shProg);
 821    /*@}*/
 822
 823
 824    /**
 825     * \name Support for multiple T&L engines
 826     */
 827    /*@{*/
 828
 829    /**
 830     * Bitmask of state changes that require the current T&L module to be
 831     * validated, using ValidateTnlModule() below.
 832     */
 833    GLuint NeedValidate;
 834
 835    /**
 836     * Validate the current T&L module.
 837     *
 838     * This is called directly after UpdateState() when a state change that has
 839     * occurred matches the dd_function_table::NeedValidate bitmask above.  This
 840     * ensures all computed values are up to date, thus allowing the driver to
 841     * decide if the current T&L module needs to be swapped out.
 842     *
 843     * This must be non-NULL if a driver installs a custom T&L module and sets
 844     * the dd_function_table::NeedValidate bitmask, but may be NULL otherwise.
 845     */
 846    void (*ValidateTnlModule)( struct gl_context *ctx, GLuint new_state );
 847
 848    /**
 849     * Set by the driver-supplied T&L engine.
 850     *
 851     * Set to PRIM_OUTSIDE_BEGIN_END when outside glBegin()/glEnd().
 852     */
 853    GLuint CurrentExecPrimitive;
 854
 855    /**
 856     * Current state of an in-progress compilation.
 857     *
 858     * May take on any of the additional values PRIM_OUTSIDE_BEGIN_END,
 859     * PRIM_INSIDE_UNKNOWN_PRIM or PRIM_UNKNOWN defined above.
 860     */
 861    GLuint CurrentSavePrimitive;
 862
 863
 864 #define FLUSH_STORED_VERTICES 0x1
 865 #define FLUSH_UPDATE_CURRENT  0x2
 866    /**
 867     * Set by the driver-supplied T&L engine whenever vertices are buffered
 868     * between glBegin()/glEnd() objects or __struct gl_contextRec::Current is not
 869     * updated.
 870     *
 871     * The dd_function_table::FlushVertices call below may be used to resolve
 872     * these conditions.
 873     */
 874    GLuint NeedFlush;
 875    GLuint SaveNeedFlush;
 876
 877
 878    /* Called prior to any of the GLvertexformat functions being
 879     * called.  Paired with Driver.FlushVertices().
 880     */
 881    void (*BeginVertices)( struct gl_context *ctx );
 882
 883    /**
 884     * If inside glBegin()/glEnd(), it should ASSERT(0).  Otherwise, if
 885     * FLUSH_STORED_VERTICES bit in \p flags is set flushes any buffered
 886     * vertices, if FLUSH_UPDATE_CURRENT bit is set updates
 887     * __struct gl_contextRec::Current and gl_light_attrib::Material
 888     *
 889     * Note that the default T&L engine never clears the
 890     * FLUSH_UPDATE_CURRENT bit, even after performing the update.
 891     */
 892    void (*FlushVertices)( struct gl_context *ctx, GLuint flags );
 893    void (*SaveFlushVertices)( struct gl_context *ctx );
 894
 895    /**
 896     * Give the driver the opportunity to hook in its own vtxfmt for
 897     * compiling optimized display lists.  This is called on each valid
 898     * glBegin() during list compilation.
 899     */
 900    GLboolean (*NotifySaveBegin)( struct gl_context *ctx, GLenum mode );
 901
 902    /**
 903     * Notify driver that the special derived value _NeedEyeCoords has
 904     * changed.
 905     */
 906    void (*LightingSpaceChange)( struct gl_context *ctx );
 907
 908    /**
 909     * Called by glNewList().
 910     *
 911     * Let the T&L component know what is going on with display lists
 912     * in time to make changes to dispatch tables, etc.
 913     */
 914    void (*NewList)( struct gl_context *ctx, GLuint list, GLenum mode );
 915    /**
 916     * Called by glEndList().
 917     *
 918     * \sa dd_function_table::NewList.
 919     */
 920    void (*EndList)( struct gl_context *ctx );
 921
 922    /**
 923     * Called by glCallList(s).
 924     *
 925     * Notify the T&L component before and after calling a display list.
 926     */
 927    void (*BeginCallList)( struct gl_context *ctx,
 928                           struct gl_display_list *dlist );
 929    /**
 930     * Called by glEndCallList().
 931     *
 932     * \sa dd_function_table::BeginCallList.
 933     */
 934    void (*EndCallList)( struct gl_context *ctx );
 935
 936
 937    /**
 938     * \name GL_ARB_sync interfaces
 939     */
 940    /*@{*/
 941    struct gl_sync_object * (*NewSyncObject)(struct gl_context *, GLenum);
 942    void (*FenceSync)(struct gl_context *, struct gl_sync_object *, GLenum, GLbitfield);
 943    void (*DeleteSyncObject)(struct gl_context *, struct gl_sync_object *);
 944    void (*CheckSync)(struct gl_context *, struct gl_sync_object *);
 945    void (*ClientWaitSync)(struct gl_context *, struct gl_sync_object *,
 946                           GLbitfield, GLuint64);
 947    void (*ServerWaitSync)(struct gl_context *, struct gl_sync_object *,
 948                           GLbitfield, GLuint64);
 949    /*@}*/
 950
 951    /** GL_NV_conditional_render */
 952    void (*BeginConditionalRender)(struct gl_context *ctx, struct gl_query_object *q,
 953                                   GLenum mode);
 954    void (*EndConditionalRender)(struct gl_context *ctx, struct gl_query_object *q);
 955
 956    /**
 957     * \name GL_OES_draw_texture interface
 958     */
 959    /*@{*/
 960    void (*DrawTex)(struct gl_context *ctx, GLfloat x, GLfloat y, GLfloat z,
 961                    GLfloat width, GLfloat height);
 962    /*@}*/
 963
 964    /**
 965     * \name GL_OES_EGL_image interface
 966     */
 967    void (*EGLImageTargetTexture2D)(struct gl_context *ctx, GLenum target,
 968                                    struct gl_texture_object *texObj,
 969                                    struct gl_texture_image *texImage,
 970                                    GLeglImageOES image_handle);
 971    void (*EGLImageTargetRenderbufferStorage)(struct gl_context *ctx,
 972                                              struct gl_renderbuffer *rb,
 973                                              void *image_handle);
 974
 975    /**
 976     * \name GL_EXT_transform_feedback interface
 977     */
 978    struct gl_transform_feedback_object *
 979         (*NewTransformFeedback)(struct gl_context *ctx, GLuint name);
 980    void (*DeleteTransformFeedback)(struct gl_context *ctx,
 981                                    struct gl_transform_feedback_object *obj);
 982    void (*BeginTransformFeedback)(struct gl_context *ctx, GLenum mode,
 983                                   struct gl_transform_feedback_object *obj);
 984    void (*EndTransformFeedback)(struct gl_context *ctx,
 985                                 struct gl_transform_feedback_object *obj);
 986    void (*PauseTransformFeedback)(struct gl_context *ctx,
 987                                   struct gl_transform_feedback_object *obj);
 988    void (*ResumeTransformFeedback)(struct gl_context *ctx,
 989                                    struct gl_transform_feedback_object *obj);
 990    void (*DrawTransformFeedback)(struct gl_context *ctx, GLenum mode,
 991                                  struct gl_transform_feedback_object *obj);
 992
 993    /**
 994     * \name GL_NV_texture_barrier interface
 995     */
 996    void (*TextureBarrier)(struct gl_context *ctx);
 997
 998    /**
 999     * \name GL_ARB_sampler_objects
1000     */
1001    struct gl_sampler_object * (*NewSamplerObject)(struct gl_context *ctx,
1002                                                   GLuint name);
1003    void (*DeleteSamplerObject)(struct gl_context *ctx,
1004                                struct gl_sampler_object *samp);
1005 };
1006
1007
1008 /**
1009  * Transform/Clip/Lighting interface
1010  *
1011  * Drivers present a reduced set of the functions possible in
1012  * glBegin()/glEnd() objects.  Core mesa provides translation stubs for the
1013  * remaining functions to map down to these entry points.
1014  *
1015  * These are the initial values to be installed into dispatch by
1016  * mesa.  If the T&L driver wants to modify the dispatch table
1017  * while installed, it must do so itself.  It would be possible for
1018  * the vertexformat to install its own initial values for these
1019  * functions, but this way there is an obvious list of what is
1020  * expected of the driver.
1021  *
1022  * If the driver wants to hook in entry points other than those
1023  * listed, it must restore them to their original values in
1024  * the disable() callback, below.
1025  */
1026 typedef struct {
1027    /**
1028     * \name Vertex
1029     */
1030    /*@{*/
1031    void (GLAPIENTRYP ArrayElement)( GLint );
1032    void (GLAPIENTRYP Color3f)( GLfloat, GLfloat, GLfloat );
1033    void (GLAPIENTRYP Color3fv)( const GLfloat * );
1034    void (GLAPIENTRYP Color4f)( GLfloat, GLfloat, GLfloat, GLfloat );
1035    void (GLAPIENTRYP Color4fv)( const GLfloat * );
1036    void (GLAPIENTRYP EdgeFlag)( GLboolean );
1037    void (GLAPIENTRYP EvalCoord1f)( GLfloat );
1038    void (GLAPIENTRYP EvalCoord1fv)( const GLfloat * );
1039    void (GLAPIENTRYP EvalCoord2f)( GLfloat, GLfloat );
1040    void (GLAPIENTRYP EvalCoord2fv)( const GLfloat * );
1041    void (GLAPIENTRYP EvalPoint1)( GLint );
1042    void (GLAPIENTRYP EvalPoint2)( GLint, GLint );
1043    void (GLAPIENTRYP FogCoordfEXT)( GLfloat );
1044    void (GLAPIENTRYP FogCoordfvEXT)( const GLfloat * );
1045    void (GLAPIENTRYP Indexf)( GLfloat );
1046    void (GLAPIENTRYP Indexfv)( const GLfloat * );
1047    void (GLAPIENTRYP Materialfv)( GLenum face, GLenum pname, const GLfloat * );
1048    void (GLAPIENTRYP MultiTexCoord1fARB)( GLenum, GLfloat );
1049    void (GLAPIENTRYP MultiTexCoord1fvARB)( GLenum, const GLfloat * );
1050    void (GLAPIENTRYP MultiTexCoord2fARB)( GLenum, GLfloat, GLfloat );
1051    void (GLAPIENTRYP MultiTexCoord2fvARB)( GLenum, const GLfloat * );
1052    void (GLAPIENTRYP MultiTexCoord3fARB)( GLenum, GLfloat, GLfloat, GLfloat );
1053    void (GLAPIENTRYP MultiTexCoord3fvARB)( GLenum, const GLfloat * );
1054    void (GLAPIENTRYP MultiTexCoord4fARB)( GLenum, GLfloat, GLfloat, GLfloat, GLfloat );
1055    void (GLAPIENTRYP MultiTexCoord4fvARB)( GLenum, const GLfloat * );
1056    void (GLAPIENTRYP Normal3f)( GLfloat, GLfloat, GLfloat );
1057    void (GLAPIENTRYP Normal3fv)( const GLfloat * );
1058    void (GLAPIENTRYP SecondaryColor3fEXT)( GLfloat, GLfloat, GLfloat );
1059    void (GLAPIENTRYP SecondaryColor3fvEXT)( const GLfloat * );
1060    void (GLAPIENTRYP TexCoord1f)( GLfloat );
1061    void (GLAPIENTRYP TexCoord1fv)( const GLfloat * );
1062    void (GLAPIENTRYP TexCoord2f)( GLfloat, GLfloat );
1063    void (GLAPIENTRYP TexCoord2fv)( const GLfloat * );
1064    void (GLAPIENTRYP TexCoord3f)( GLfloat, GLfloat, GLfloat );
1065    void (GLAPIENTRYP TexCoord3fv)( const GLfloat * );
1066    void (GLAPIENTRYP TexCoord4f)( GLfloat, GLfloat, GLfloat, GLfloat );
1067    void (GLAPIENTRYP TexCoord4fv)( const GLfloat * );
1068    void (GLAPIENTRYP Vertex2f)( GLfloat, GLfloat );
1069    void (GLAPIENTRYP Vertex2fv)( const GLfloat * );
1070    void (GLAPIENTRYP Vertex3f)( GLfloat, GLfloat, GLfloat );
1071    void (GLAPIENTRYP Vertex3fv)( const GLfloat * );
1072    void (GLAPIENTRYP Vertex4f)( GLfloat, GLfloat, GLfloat, GLfloat );
1073    void (GLAPIENTRYP Vertex4fv)( const GLfloat * );
1074    void (GLAPIENTRYP CallList)( GLuint );
1075    void (GLAPIENTRYP CallLists)( GLsizei, GLenum, const GLvoid * );
1076    void (GLAPIENTRYP Begin)( GLenum );
1077    void (GLAPIENTRYP End)( void );
1078    void (GLAPIENTRYP PrimitiveRestartNV)( void );
1079    /* GL_NV_vertex_program */
1080    void (GLAPIENTRYP VertexAttrib1fNV)( GLuint index, GLfloat x );
1081    void (GLAPIENTRYP VertexAttrib1fvNV)( GLuint index, const GLfloat *v );
1082    void (GLAPIENTRYP VertexAttrib2fNV)( GLuint index, GLfloat x, GLfloat y );
1083    void (GLAPIENTRYP VertexAttrib2fvNV)( GLuint index, const GLfloat *v );
1084    void (GLAPIENTRYP VertexAttrib3fNV)( GLuint index, GLfloat x, GLfloat y, GLfloat z );
1085    void (GLAPIENTRYP VertexAttrib3fvNV)( GLuint index, const GLfloat *v );
1086    void (GLAPIENTRYP VertexAttrib4fNV)( GLuint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w );
1087    void (GLAPIENTRYP VertexAttrib4fvNV)( GLuint index, const GLfloat *v );
1088    /* GL_ARB_vertex_program */
1089    void (GLAPIENTRYP VertexAttrib1fARB)( GLuint index, GLfloat x );
1090    void (GLAPIENTRYP VertexAttrib1fvARB)( GLuint index, const GLfloat *v );
1091    void (GLAPIENTRYP VertexAttrib2fARB)( GLuint index, GLfloat x, GLfloat y );
1092    void (GLAPIENTRYP VertexAttrib2fvARB)( GLuint index, const GLfloat *v );
1093    void (GLAPIENTRYP VertexAttrib3fARB)( GLuint index, GLfloat x, GLfloat y, GLfloat z );
1094    void (GLAPIENTRYP VertexAttrib3fvARB)( GLuint index, const GLfloat *v );
1095    void (GLAPIENTRYP VertexAttrib4fARB)( GLuint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w );
1096    void (GLAPIENTRYP VertexAttrib4fvARB)( GLuint index, const GLfloat *v );
1097
1098    /* GL_EXT_gpu_shader4 / GL 3.0 */
1099    void (GLAPIENTRYP VertexAttribI1i)( GLuint index, GLint x);
1100    void (GLAPIENTRYP VertexAttribI2i)( GLuint index, GLint x, GLint y);
1101    void (GLAPIENTRYP VertexAttribI3i)( GLuint index, GLint x, GLint y, GLint z);
1102    void (GLAPIENTRYP VertexAttribI4i)( GLuint index, GLint x, GLint y, GLint z, GLint w);
1103    void (GLAPIENTRYP VertexAttribI2iv)( GLuint index, const GLint *v);
1104    void (GLAPIENTRYP VertexAttribI3iv)( GLuint index, const GLint *v);
1105    void (GLAPIENTRYP VertexAttribI4iv)( GLuint index, const GLint *v);
1106
1107    void (GLAPIENTRYP VertexAttribI1ui)( GLuint index, GLuint x);
1108    void (GLAPIENTRYP VertexAttribI2ui)( GLuint index, GLuint x, GLuint y);
1109    void (GLAPIENTRYP VertexAttribI3ui)( GLuint index, GLuint x, GLuint y, GLuint z);
1110    void (GLAPIENTRYP VertexAttribI4ui)( GLuint index, GLuint x, GLuint y, GLuint z, GLuint w);
1111    void (GLAPIENTRYP VertexAttribI2uiv)( GLuint index, const GLuint *v);
1112    void (GLAPIENTRYP VertexAttribI3uiv)( GLuint index, const GLuint *v);
1113    void (GLAPIENTRYP VertexAttribI4uiv)( GLuint index, const GLuint *v);
1114
1115    /*@}*/
1116
1117    void (GLAPIENTRYP Rectf)( GLfloat, GLfloat, GLfloat, GLfloat );
1118
1119    /**
1120     * \name Array
1121     */
1122    /*@{*/
1123    void (GLAPIENTRYP DrawArrays)( GLenum mode, GLint start, GLsizei count );
1124    void (GLAPIENTRYP DrawElements)( GLenum mode, GLsizei count, GLenum type,
1125                          const GLvoid *indices );
1126    void (GLAPIENTRYP DrawRangeElements)( GLenum mode, GLuint start,
1127                               GLuint end, GLsizei count,
1128                               GLenum type, const GLvoid *indices );
1129    void (GLAPIENTRYP MultiDrawElementsEXT)( GLenum mode, const GLsizei *count,
1130                                             GLenum type,
1131                                             const GLvoid **indices,
1132                                             GLsizei primcount);
1133    void (GLAPIENTRYP DrawElementsBaseVertex)( GLenum mode, GLsizei count,
1134                                               GLenum type,
1135                                               const GLvoid *indices,
1136                                               GLint basevertex );
1137    void (GLAPIENTRYP DrawRangeElementsBaseVertex)( GLenum mode, GLuint start,
1138                                                    GLuint end, GLsizei count,
1139                                                    GLenum type,
1140                                                    const GLvoid *indices,
1141                                                    GLint basevertex);
1142    void (GLAPIENTRYP MultiDrawElementsBaseVertex)( GLenum mode,
1143                                                    const GLsizei *count,
1144                                                    GLenum type,
1145                                                    const GLvoid **indices,
1146                                                    GLsizei primcount,
1147                                                    const GLint *basevertex);
1148    void (GLAPIENTRYP DrawArraysInstanced)(GLenum mode, GLint first,
1149                                           GLsizei count, GLsizei primcount);
1150    void (GLAPIENTRYP DrawElementsInstanced)(GLenum mode, GLsizei count,
1151                                             GLenum type, const GLvoid *indices,
1152                                             GLsizei primcount);
1153    void (GLAPIENTRYP DrawElementsInstancedBaseVertex)(GLenum mode, GLsizei count,
1154                                             GLenum type, const GLvoid *indices,
1155                                             GLsizei primcount, GLint basevertex);
1156    /*@}*/
1157
1158    /**
1159     * \name Eval
1160     *
1161     * If you don't support eval, fallback to the default vertex format
1162     * on receiving an eval call and use the pipeline mechanism to
1163     * provide partial T&L acceleration.
1164     *
1165     * Mesa will provide a set of helper functions to do eval within
1166     * accelerated vertex formats, eventually...
1167     */
1168    /*@{*/
1169    void (GLAPIENTRYP EvalMesh1)( GLenum mode, GLint i1, GLint i2 );
1170    void (GLAPIENTRYP EvalMesh2)( GLenum mode, GLint i1, GLint i2, GLint j1, GLint j2 );
1171    /*@}*/
1172
1173 } GLvertexformat;
1174
1175
1176 #endif /* DD_INCLUDED */