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 struct gl_pixelstore_attrib;
  37 struct gl_display_list;
  38
  39 #if FEATURE_ARB_vertex_buffer_object
  40 /* Modifies GL_MAP_UNSYNCHRONIZED_BIT to allow driver to fail (return
  41  * NULL) if buffer is unavailable for immediate mapping.
  42  *
  43  * Does GL_MAP_INVALIDATE_RANGE_BIT do this?  It seems so, but it
  44  * would require more book-keeping in the driver than seems necessary
  45  * at this point.
  46  *
  47  * Does GL_MAP_INVALDIATE_BUFFER_BIT do this?  Not really -- we don't
  48  * want to provoke the driver to throw away the old storage, we will
  49  * respect the contents of already referenced data.
  50  */
  51 #define MESA_MAP_NOWAIT_BIT       0x0040
  52 #endif
  53
  54
  55 /**
  56  * Device driver function table.
  57  * Core Mesa uses these function pointers to call into device drivers.
  58  * Most of these functions directly correspond to OpenGL state commands.
  59  * Core Mesa will call these functions after error checking has been done
  60  * so that the drivers don't have to worry about error testing.
  61  *
  62  * Vertex transformation/clipping/lighting is patched into the T&L module.
  63  * Rasterization functions are patched into the swrast module.
  64  *
  65  * Note: when new functions are added here, the drivers/common/driverfuncs.c
  66  * file should be updated too!!!
  67  */
  68 struct dd_function_table {
  69    /**
  70     * Return a string as needed by glGetString().
  71     * Only the GL_RENDERER query must be implemented.  Otherwise, NULL can be
  72     * returned.
  73     */
  74    const GLubyte * (*GetString)( GLcontext *ctx, GLenum name );
  75
  76    /**
  77     * Notify the driver after Mesa has made some internal state changes.
  78     *
  79     * This is in addition to any state change callbacks Mesa may already have
  80     * made.
  81     */
  82    void (*UpdateState)( GLcontext *ctx, GLbitfield new_state );
  83
  84    /**
  85     * Get the width and height of the named buffer/window.
  86     *
  87     * Mesa uses this to determine when the driver's window size has changed.
  88     * XXX OBSOLETE: this function will be removed in the future.
  89     */
  90    void (*GetBufferSize)( GLframebuffer *buffer,
  91                           GLuint *width, GLuint *height );
  92
  93    /**
  94     * Resize the given framebuffer to the given size.
  95     * XXX OBSOLETE: this function will be removed in the future.
  96     */
  97    void (*ResizeBuffers)( GLcontext *ctx, GLframebuffer *fb,
  98                           GLuint width, GLuint height);
  99
 100    /**
 101     * Called whenever an error is generated.
 102     * __GLcontextRec::ErrorValue contains the error value.
 103     */
 104    void (*Error)( GLcontext *ctx );
 105
 106    /**
 107     * This is called whenever glFinish() is called.
 108     */
 109    void (*Finish)( GLcontext *ctx );
 110
 111    /**
 112     * This is called whenever glFlush() is called.
 113     */
 114    void (*Flush)( GLcontext *ctx );
 115
 116    /**
 117     * Clear the color/depth/stencil/accum buffer(s).
 118     * \param buffers  a bitmask of BUFFER_BIT_* flags indicating which
 119     *                 renderbuffers need to be cleared.
 120     */
 121    void (*Clear)( GLcontext *ctx, GLbitfield buffers );
 122
 123    /**
 124     * Execute glAccum command.
 125     */
 126    void (*Accum)( GLcontext *ctx, GLenum op, GLfloat value );
 127
 128
 129    /**
 130     * Execute glRasterPos, updating the ctx->Current.Raster fields
 131     */
 132    void (*RasterPos)( GLcontext *ctx, const GLfloat v[4] );
 133
 134    /**
 135     * \name Image-related functions
 136     */
 137    /*@{*/
 138
 139    /**
 140     * Called by glDrawPixels().
 141     * \p unpack describes how to unpack the source image data.
 142     */
 143    void (*DrawPixels)( GLcontext *ctx,
 144                        GLint x, GLint y, GLsizei width, GLsizei height,
 145                        GLenum format, GLenum type,
 146                        const struct gl_pixelstore_attrib *unpack,
 147                        const GLvoid *pixels );
 148
 149    /**
 150     * Called by glReadPixels().
 151     */
 152    void (*ReadPixels)( GLcontext *ctx,
 153                        GLint x, GLint y, GLsizei width, GLsizei height,
 154                        GLenum format, GLenum type,
 155                        const struct gl_pixelstore_attrib *unpack,
 156                        GLvoid *dest );
 157
 158    /**
 159     * Called by glCopyPixels().
 160     */
 161    void (*CopyPixels)( GLcontext *ctx, GLint srcx, GLint srcy,
 162                        GLsizei width, GLsizei height,
 163                        GLint dstx, GLint dsty, GLenum type );
 164
 165    /**
 166     * Called by glBitmap().
 167     */
 168    void (*Bitmap)( GLcontext *ctx,
 169                    GLint x, GLint y, GLsizei width, GLsizei height,
 170                    const struct gl_pixelstore_attrib *unpack,
 171                    const GLubyte *bitmap );
 172    /*@}*/
 173
 174
 175    /**
 176     * \name Texture image functions
 177     */
 178    /*@{*/
 179
 180    /**
 181     * Choose texture format.
 182     *
 183     * This is called by the \c _mesa_store_tex[sub]image[123]d() fallback
 184     * functions.  The driver should examine \p internalFormat and return a
 185     * gl_format value.
 186     */
 187    GLuint (*ChooseTextureFormat)( GLcontext *ctx, GLint internalFormat,
 188                                      GLenum srcFormat, GLenum srcType );
 189
 190    /**
 191     * Called by glTexImage1D().
 192     *
 193     * \param target user specified.
 194     * \param format user specified.
 195     * \param type user specified.
 196     * \param pixels user specified.
 197     * \param packing indicates the image packing of pixels.
 198     * \param texObj is the target texture object.
 199     * \param texImage is the target texture image.  It will have the texture \p
 200     * width, \p height, \p depth, \p border and \p internalFormat information.
 201     *
 202     * \p retainInternalCopy is returned by this function and indicates whether
 203     * core Mesa should keep an internal copy of the texture image.
 204     *
 205     * Drivers should call a fallback routine from texstore.c if needed.
 206     */
 207    void (*TexImage1D)( GLcontext *ctx, GLenum target, GLint level,
 208                        GLint internalFormat,
 209                        GLint width, GLint border,
 210                        GLenum format, GLenum type, const GLvoid *pixels,
 211                        const struct gl_pixelstore_attrib *packing,
 212                        struct gl_texture_object *texObj,
 213                        struct gl_texture_image *texImage );
 214
 215    /**
 216     * Called by glTexImage2D().
 217     *
 218     * \sa dd_function_table::TexImage1D.
 219     */
 220    void (*TexImage2D)( GLcontext *ctx, GLenum target, GLint level,
 221                        GLint internalFormat,
 222                        GLint width, GLint height, GLint border,
 223                        GLenum format, GLenum type, const GLvoid *pixels,
 224                        const struct gl_pixelstore_attrib *packing,
 225                        struct gl_texture_object *texObj,
 226                        struct gl_texture_image *texImage );
 227
 228    /**
 229     * Called by glTexImage3D().
 230     *
 231     * \sa dd_function_table::TexImage1D.
 232     */
 233    void (*TexImage3D)( GLcontext *ctx, GLenum target, GLint level,
 234                        GLint internalFormat,
 235                        GLint width, GLint height, GLint depth, GLint border,
 236                        GLenum format, GLenum type, const GLvoid *pixels,
 237                        const struct gl_pixelstore_attrib *packing,
 238                        struct gl_texture_object *texObj,
 239                        struct gl_texture_image *texImage );
 240
 241    /**
 242     * Called by glTexSubImage1D().
 243     *
 244     * \param target user specified.
 245     * \param level user specified.
 246     * \param xoffset user specified.
 247     * \param yoffset user specified.
 248     * \param zoffset user specified.
 249     * \param width user specified.
 250     * \param height user specified.
 251     * \param depth user specified.
 252     * \param format user specified.
 253     * \param type user specified.
 254     * \param pixels user specified.
 255     * \param packing indicates the image packing of pixels.
 256     * \param texObj is the target texture object.
 257     * \param texImage is the target texture image.  It will have the texture \p
 258     * width, \p height, \p border and \p internalFormat information.
 259     *
 260     * The driver should use a fallback routine from texstore.c if needed.
 261     */
 262    void (*TexSubImage1D)( GLcontext *ctx, GLenum target, GLint level,
 263                           GLint xoffset, GLsizei width,
 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 glTexSubImage2D().
 272     *
 273     * \sa dd_function_table::TexSubImage1D.
 274     */
 275    void (*TexSubImage2D)( GLcontext *ctx, GLenum target, GLint level,
 276                           GLint xoffset, GLint yoffset,
 277                           GLsizei width, GLsizei height,
 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 glTexSubImage3D().
 286     *
 287     * \sa dd_function_table::TexSubImage1D.
 288     */
 289    void (*TexSubImage3D)( GLcontext *ctx, GLenum target, GLint level,
 290                           GLint xoffset, GLint yoffset, GLint zoffset,
 291                           GLsizei width, GLsizei height, GLint depth,
 292                           GLenum format, GLenum type,
 293                           const GLvoid *pixels,
 294                           const struct gl_pixelstore_attrib *packing,
 295                           struct gl_texture_object *texObj,
 296                           struct gl_texture_image *texImage );
 297
 298    /**
 299     * Called by glGetTexImage().
 300     */
 301    void (*GetTexImage)( GLcontext *ctx, GLenum target, GLint level,
 302                         GLenum format, GLenum type, GLvoid *pixels,
 303                         struct gl_texture_object *texObj,
 304                         struct gl_texture_image *texImage );
 305
 306    /**
 307     * Called by glCopyTexImage1D().
 308     *
 309     * Drivers should use a fallback routine from texstore.c if needed.
 310     */
 311    void (*CopyTexImage1D)( GLcontext *ctx, GLenum target, GLint level,
 312                            GLenum internalFormat, GLint x, GLint y,
 313                            GLsizei width, GLint border );
 314
 315    /**
 316     * Called by glCopyTexImage2D().
 317     *
 318     * Drivers should use a fallback routine from texstore.c if needed.
 319     */
 320    void (*CopyTexImage2D)( GLcontext *ctx, GLenum target, GLint level,
 321                            GLenum internalFormat, GLint x, GLint y,
 322                            GLsizei width, GLsizei height, GLint border );
 323
 324    /**
 325     * Called by glCopyTexSubImage1D().
 326     *
 327     * Drivers should use a fallback routine from texstore.c if needed.
 328     */
 329    void (*CopyTexSubImage1D)( GLcontext *ctx, GLenum target, GLint level,
 330                               GLint xoffset,
 331                               GLint x, GLint y, GLsizei width );
 332    /**
 333     * Called by glCopyTexSubImage2D().
 334     *
 335     * Drivers should use a fallback routine from texstore.c if needed.
 336     */
 337    void (*CopyTexSubImage2D)( GLcontext *ctx, GLenum target, GLint level,
 338                               GLint xoffset, GLint yoffset,
 339                               GLint x, GLint y,
 340                               GLsizei width, GLsizei height );
 341    /**
 342     * Called by glCopyTexSubImage3D().
 343     *
 344     * Drivers should use a fallback routine from texstore.c if needed.
 345     */
 346    void (*CopyTexSubImage3D)( GLcontext *ctx, GLenum target, GLint level,
 347                               GLint xoffset, GLint yoffset, GLint zoffset,
 348                               GLint x, GLint y,
 349                               GLsizei width, GLsizei height );
 350
 351    /**
 352     * Called by glGenerateMipmap() or when GL_GENERATE_MIPMAP_SGIS is enabled.
 353     */
 354    void (*GenerateMipmap)(GLcontext *ctx, GLenum target,
 355                           struct gl_texture_object *texObj);
 356
 357    /**
 358     * Called by glTexImage[123]D when user specifies a proxy texture
 359     * target.
 360     *
 361     * \return GL_TRUE if the proxy test passes, or GL_FALSE if the test fails.
 362     */
 363    GLboolean (*TestProxyTexImage)(GLcontext *ctx, GLenum target,
 364                                   GLint level, GLint internalFormat,
 365                                   GLenum format, GLenum type,
 366                                   GLint width, GLint height,
 367                                   GLint depth, GLint border);
 368    /*@}*/
 369
 370
 371    /**
 372     * \name Compressed texture functions
 373     */
 374    /*@{*/
 375
 376    /**
 377     * Called by glCompressedTexImage1D().
 378     *
 379     * \param target user specified.
 380     * \param format user specified.
 381     * \param type user specified.
 382     * \param pixels user specified.
 383     * \param packing indicates the image packing of pixels.
 384     * \param texObj is the target texture object.
 385     * \param texImage is the target texture image.  It will have the texture \p
 386     * width, \p height, \p depth, \p border and \p internalFormat information.
 387     *
 388     * \a retainInternalCopy is returned by this function and indicates whether
 389     * core Mesa should keep an internal copy of the texture image.
 390     */
 391    void (*CompressedTexImage1D)( GLcontext *ctx, GLenum target,
 392                                  GLint level, GLint internalFormat,
 393                                  GLsizei width, GLint border,
 394                                  GLsizei imageSize, const GLvoid *data,
 395                                  struct gl_texture_object *texObj,
 396                                  struct gl_texture_image *texImage );
 397    /**
 398     * Called by glCompressedTexImage2D().
 399     *
 400     * \sa dd_function_table::CompressedTexImage1D.
 401     */
 402    void (*CompressedTexImage2D)( GLcontext *ctx, GLenum target,
 403                                  GLint level, GLint internalFormat,
 404                                  GLsizei width, GLsizei height, GLint border,
 405                                  GLsizei imageSize, const GLvoid *data,
 406                                  struct gl_texture_object *texObj,
 407                                  struct gl_texture_image *texImage );
 408    /**
 409     * Called by glCompressedTexImage3D().
 410     *
 411     * \sa dd_function_table::CompressedTexImage3D.
 412     */
 413    void (*CompressedTexImage3D)( GLcontext *ctx, GLenum target,
 414                                  GLint level, GLint internalFormat,
 415                                  GLsizei width, GLsizei height, GLsizei depth,
 416                                  GLint border,
 417                                  GLsizei imageSize, const GLvoid *data,
 418                                  struct gl_texture_object *texObj,
 419                                  struct gl_texture_image *texImage );
 420
 421    /**
 422     * Called by glCompressedTexSubImage1D().
 423     *
 424     * \param target user specified.
 425     * \param level user specified.
 426     * \param xoffset user specified.
 427     * \param yoffset user specified.
 428     * \param zoffset user specified.
 429     * \param width user specified.
 430     * \param height user specified.
 431     * \param depth user specified.
 432     * \param imageSize user specified.
 433     * \param data user specified.
 434     * \param texObj is the target texture object.
 435     * \param texImage is the target texture image.  It will have the texture \p
 436     * width, \p height, \p depth, \p border and \p internalFormat information.
 437     */
 438    void (*CompressedTexSubImage1D)(GLcontext *ctx, GLenum target, GLint level,
 439                                    GLint xoffset, GLsizei width,
 440                                    GLenum format,
 441                                    GLsizei imageSize, const GLvoid *data,
 442                                    struct gl_texture_object *texObj,
 443                                    struct gl_texture_image *texImage);
 444    /**
 445     * Called by glCompressedTexSubImage2D().
 446     *
 447     * \sa dd_function_table::CompressedTexImage3D.
 448     */
 449    void (*CompressedTexSubImage2D)(GLcontext *ctx, GLenum target, GLint level,
 450                                    GLint xoffset, GLint yoffset,
 451                                    GLsizei width, GLint height,
 452                                    GLenum format,
 453                                    GLsizei imageSize, const GLvoid *data,
 454                                    struct gl_texture_object *texObj,
 455                                    struct gl_texture_image *texImage);
 456    /**
 457     * Called by glCompressedTexSubImage3D().
 458     *
 459     * \sa dd_function_table::CompressedTexImage3D.
 460     */
 461    void (*CompressedTexSubImage3D)(GLcontext *ctx, GLenum target, GLint level,
 462                                    GLint xoffset, GLint yoffset, GLint zoffset,
 463                                    GLsizei width, GLint height, GLint depth,
 464                                    GLenum format,
 465                                    GLsizei imageSize, const GLvoid *data,
 466                                    struct gl_texture_object *texObj,
 467                                    struct gl_texture_image *texImage);
 468
 469
 470    /**
 471     * Called by glGetCompressedTexImage.
 472     */
 473    void (*GetCompressedTexImage)(GLcontext *ctx, GLenum target, GLint level,
 474                                  GLvoid *img,
 475                                  struct gl_texture_object *texObj,
 476                                  struct gl_texture_image *texImage);
 477
 478    /*@}*/
 479
 480    /**
 481     * \name Texture object functions
 482     */
 483    /*@{*/
 484
 485    /**
 486     * Called by glBindTexture().
 487     */
 488    void (*BindTexture)( GLcontext *ctx, GLenum target,
 489                         struct gl_texture_object *tObj );
 490
 491    /**
 492     * Called to allocate a new texture object.
 493     * A new gl_texture_object should be returned.  The driver should
 494     * attach to it any device-specific info it needs.
 495     */
 496    struct gl_texture_object * (*NewTextureObject)( GLcontext *ctx, GLuint name,
 497                                                    GLenum target );
 498    /**
 499     * Called when a texture object is about to be deallocated.
 500     *
 501     * Driver should delete the gl_texture_object object and anything
 502     * hanging off of it.
 503     */
 504    void (*DeleteTexture)( GLcontext *ctx, struct gl_texture_object *tObj );
 505
 506    /**
 507     * Called to allocate a new texture image object.
 508     */
 509    struct gl_texture_image * (*NewTextureImage)( GLcontext *ctx );
 510
 511    /**
 512     * Called to free tImage->Data.
 513     */
 514    void (*FreeTexImageData)( GLcontext *ctx, struct gl_texture_image *tImage );
 515
 516    /** Map texture image data into user space */
 517    void (*MapTexture)( GLcontext *ctx, struct gl_texture_object *tObj );
 518    /** Unmap texture images from user space */
 519    void (*UnmapTexture)( GLcontext *ctx, struct gl_texture_object *tObj );
 520
 521    /**
 522     * Note: no context argument.  This function doesn't initially look
 523     * like it belongs here, except that the driver is the only entity
 524     * that knows for sure how the texture memory is allocated - via
 525     * the above callbacks.  There is then an argument that the driver
 526     * knows what memcpy paths might be fast.  Typically this is invoked with
 527     *
 528     * to -- a pointer into texture memory allocated by NewTextureImage() above.
 529     * from -- a pointer into client memory or a mesa temporary.
 530     * sz -- nr bytes to copy.
 531     */
 532    void* (*TextureMemCpy)( void *to, const void *from, size_t sz );
 533
 534    /**
 535     * Called by glAreTextureResident().
 536     */
 537    GLboolean (*IsTextureResident)( GLcontext *ctx,
 538                                    struct gl_texture_object *t );
 539
 540    /**
 541     * Called when the texture's color lookup table is changed.
 542     *
 543     * If \p tObj is NULL then the shared texture palette
 544     * gl_texture_object::Palette is to be updated.
 545     */
 546    void (*UpdateTexturePalette)( GLcontext *ctx,
 547                                  struct gl_texture_object *tObj );
 548    /*@}*/
 549
 550
 551    /**
 552     * \name Imaging functionality
 553     */
 554    /*@{*/
 555    void (*CopyColorTable)( GLcontext *ctx,
 556                            GLenum target, GLenum internalformat,
 557                            GLint x, GLint y, GLsizei width );
 558
 559    void (*CopyColorSubTable)( GLcontext *ctx,
 560                               GLenum target, GLsizei start,
 561                               GLint x, GLint y, GLsizei width );
 562
 563    void (*CopyConvolutionFilter1D)( GLcontext *ctx, GLenum target,
 564                                     GLenum internalFormat,
 565                                     GLint x, GLint y, GLsizei width );
 566
 567    void (*CopyConvolutionFilter2D)( GLcontext *ctx, GLenum target,
 568                                     GLenum internalFormat,
 569                                     GLint x, GLint y,
 570                                     GLsizei width, GLsizei height );
 571    /*@}*/
 572
 573
 574    /**
 575     * \name Vertex/fragment program functions
 576     */
 577    /*@{*/
 578    /** Bind a vertex/fragment program */
 579    void (*BindProgram)(GLcontext *ctx, GLenum target, struct gl_program *prog);
 580    /** Allocate a new program */
 581    struct gl_program * (*NewProgram)(GLcontext *ctx, GLenum target, GLuint id);
 582    /** Delete a program */
 583    void (*DeleteProgram)(GLcontext *ctx, struct gl_program *prog);
 584    /**
 585     * Notify driver that a program string (and GPU code) has been specified
 586     * or modified.  Return GL_TRUE or GL_FALSE to indicate if the program is
 587     * supported by the driver.
 588     */
 589    GLboolean (*ProgramStringNotify)(GLcontext *ctx, GLenum target,
 590                                     struct gl_program *prog);
 591
 592    /** Query if program can be loaded onto hardware */
 593    GLboolean (*IsProgramNative)(GLcontext *ctx, GLenum target,
 594                                 struct gl_program *prog);
 595
 596    /*@}*/
 597
 598    /**
 599     * \name GLSL shader/program functions.
 600     */
 601    /*@{*/
 602    /**
 603     * Called when a shader is compiled.
 604     *
 605     * Note that not all shader objects get ShaderCompile called on
 606     * them.  Notably, the shaders containing builtin functions do not
 607     * have CompileShader() called, so if lowering passes are done they
 608     * need to also be performed in LinkShader().
 609     */
 610    GLboolean (*CompileShader)(GLcontext *ctx, struct gl_shader *shader);
 611    /**
 612     * Called when a shader program is linked.
 613     *
 614     * This gives drivers an opportunity to clone the IR and make their
 615     * own transformations on it for the purposes of code generation.
 616     */
 617    GLboolean (*LinkShader)(GLcontext *ctx, struct gl_shader_program *shader);
 618    /*@}*/
 619
 620    /**
 621     * \name State-changing functions.
 622     *
 623     * \note drawing functions are above.
 624     *
 625     * These functions are called by their corresponding OpenGL API functions.
 626     * They are \e also called by the gl_PopAttrib() function!!!
 627     * May add more functions like these to the device driver in the future.
 628     */
 629    /*@{*/
 630    /** Specify the alpha test function */
 631    void (*AlphaFunc)(GLcontext *ctx, GLenum func, GLfloat ref);
 632    /** Set the blend color */
 633    void (*BlendColor)(GLcontext *ctx, const GLfloat color[4]);
 634    /** Set the blend equation */
 635    void (*BlendEquationSeparate)(GLcontext *ctx, GLenum modeRGB, GLenum modeA);
 636    /** Specify pixel arithmetic */
 637    void (*BlendFuncSeparate)(GLcontext *ctx,
 638                              GLenum sfactorRGB, GLenum dfactorRGB,
 639                              GLenum sfactorA, GLenum dfactorA);
 640    /** Specify clear values for the color buffers */
 641    void (*ClearColor)(GLcontext *ctx, const GLfloat color[4]);
 642    /** Specify the clear value for the depth buffer */
 643    void (*ClearDepth)(GLcontext *ctx, GLclampd d);
 644    /** Specify the clear value for the stencil buffer */
 645    void (*ClearStencil)(GLcontext *ctx, GLint s);
 646    /** Specify a plane against which all geometry is clipped */
 647    void (*ClipPlane)(GLcontext *ctx, GLenum plane, const GLfloat *equation );
 648    /** Enable and disable writing of frame buffer color components */
 649    void (*ColorMask)(GLcontext *ctx, GLboolean rmask, GLboolean gmask,
 650                      GLboolean bmask, GLboolean amask );
 651    void (*ColorMaskIndexed)(GLcontext *ctx, GLuint buf, GLboolean rmask,
 652                             GLboolean gmask, GLboolean bmask, GLboolean amask);
 653    /** Cause a material color to track the current color */
 654    void (*ColorMaterial)(GLcontext *ctx, GLenum face, GLenum mode);
 655    /** Specify whether front- or back-facing facets can be culled */
 656    void (*CullFace)(GLcontext *ctx, GLenum mode);
 657    /** Define front- and back-facing polygons */
 658    void (*FrontFace)(GLcontext *ctx, GLenum mode);
 659    /** Specify the value used for depth buffer comparisons */
 660    void (*DepthFunc)(GLcontext *ctx, GLenum func);
 661    /** Enable or disable writing into the depth buffer */
 662    void (*DepthMask)(GLcontext *ctx, GLboolean flag);
 663    /** Specify mapping of depth values from NDC to window coordinates */
 664    void (*DepthRange)(GLcontext *ctx, GLclampd nearval, GLclampd farval);
 665    /** Specify the current buffer for writing */
 666    void (*DrawBuffer)( GLcontext *ctx, GLenum buffer );
 667    /** Specify the buffers for writing for fragment programs*/
 668    void (*DrawBuffers)( GLcontext *ctx, GLsizei n, const GLenum *buffers );
 669    /** Enable or disable server-side gl capabilities */
 670    void (*Enable)(GLcontext *ctx, GLenum cap, GLboolean state);
 671    /** Specify fog parameters */
 672    void (*Fogfv)(GLcontext *ctx, GLenum pname, const GLfloat *params);
 673    /** Specify implementation-specific hints */
 674    void (*Hint)(GLcontext *ctx, GLenum target, GLenum mode);
 675    /** Set light source parameters.
 676     * Note: for GL_POSITION and GL_SPOT_DIRECTION, params will have already
 677     * been transformed to eye-space.
 678     */
 679    void (*Lightfv)(GLcontext *ctx, GLenum light,
 680                    GLenum pname, const GLfloat *params );
 681    /** Set the lighting model parameters */
 682    void (*LightModelfv)(GLcontext *ctx, GLenum pname, const GLfloat *params);
 683    /** Specify the line stipple pattern */
 684    void (*LineStipple)(GLcontext *ctx, GLint factor, GLushort pattern );
 685    /** Specify the width of rasterized lines */
 686    void (*LineWidth)(GLcontext *ctx, GLfloat width);
 687    /** Specify a logical pixel operation for color index rendering */
 688    void (*LogicOpcode)(GLcontext *ctx, GLenum opcode);
 689    void (*PointParameterfv)(GLcontext *ctx, GLenum pname,
 690                             const GLfloat *params);
 691    /** Specify the diameter of rasterized points */
 692    void (*PointSize)(GLcontext *ctx, GLfloat size);
 693    /** Select a polygon rasterization mode */
 694    void (*PolygonMode)(GLcontext *ctx, GLenum face, GLenum mode);
 695    /** Set the scale and units used to calculate depth values */
 696    void (*PolygonOffset)(GLcontext *ctx, GLfloat factor, GLfloat units);
 697    /** Set the polygon stippling pattern */
 698    void (*PolygonStipple)(GLcontext *ctx, const GLubyte *mask );
 699    /* Specifies the current buffer for reading */
 700    void (*ReadBuffer)( GLcontext *ctx, GLenum buffer );
 701    /** Set rasterization mode */
 702    void (*RenderMode)(GLcontext *ctx, GLenum mode );
 703    /** Define the scissor box */
 704    void (*Scissor)(GLcontext *ctx, GLint x, GLint y, GLsizei w, GLsizei h);
 705    /** Select flat or smooth shading */
 706    void (*ShadeModel)(GLcontext *ctx, GLenum mode);
 707    /** OpenGL 2.0 two-sided StencilFunc */
 708    void (*StencilFuncSeparate)(GLcontext *ctx, GLenum face, GLenum func,
 709                                GLint ref, GLuint mask);
 710    /** OpenGL 2.0 two-sided StencilMask */
 711    void (*StencilMaskSeparate)(GLcontext *ctx, GLenum face, GLuint mask);
 712    /** OpenGL 2.0 two-sided StencilOp */
 713    void (*StencilOpSeparate)(GLcontext *ctx, GLenum face, GLenum fail,
 714                              GLenum zfail, GLenum zpass);
 715    /** Control the generation of texture coordinates */
 716    void (*TexGen)(GLcontext *ctx, GLenum coord, GLenum pname,
 717                   const GLfloat *params);
 718    /** Set texture environment parameters */
 719    void (*TexEnv)(GLcontext *ctx, GLenum target, GLenum pname,
 720                   const GLfloat *param);
 721    /** Set texture parameters */
 722    void (*TexParameter)(GLcontext *ctx, GLenum target,
 723                         struct gl_texture_object *texObj,
 724                         GLenum pname, const GLfloat *params);
 725    /** Set the viewport */
 726    void (*Viewport)(GLcontext *ctx, GLint x, GLint y, GLsizei w, GLsizei h);
 727    /*@}*/
 728
 729
 730    /**
 731     * \name Vertex/pixel buffer object functions
 732     */
 733 #if FEATURE_ARB_vertex_buffer_object
 734    /*@{*/
 735    void (*BindBuffer)( GLcontext *ctx, GLenum target,
 736                        struct gl_buffer_object *obj );
 737
 738    struct gl_buffer_object * (*NewBufferObject)( GLcontext *ctx, GLuint buffer,
 739                                                  GLenum target );
 740
 741    void (*DeleteBuffer)( GLcontext *ctx, struct gl_buffer_object *obj );
 742
 743    GLboolean (*BufferData)( GLcontext *ctx, GLenum target, GLsizeiptrARB size,
 744                             const GLvoid *data, GLenum usage,
 745                             struct gl_buffer_object *obj );
 746
 747    void (*BufferSubData)( GLcontext *ctx, GLenum target, GLintptrARB offset,
 748                           GLsizeiptrARB size, const GLvoid *data,
 749                           struct gl_buffer_object *obj );
 750
 751    void (*GetBufferSubData)( GLcontext *ctx, GLenum target,
 752                              GLintptrARB offset, GLsizeiptrARB size,
 753                              GLvoid *data, struct gl_buffer_object *obj );
 754
 755    void * (*MapBuffer)( GLcontext *ctx, GLenum target, GLenum access,
 756                         struct gl_buffer_object *obj );
 757
 758    void (*CopyBufferSubData)( GLcontext *ctx,
 759                               struct gl_buffer_object *src,
 760                               struct gl_buffer_object *dst,
 761                               GLintptr readOffset, GLintptr writeOffset,
 762                               GLsizeiptr size );
 763
 764    /* May return NULL if MESA_MAP_NOWAIT_BIT is set in access:
 765     */
 766    void * (*MapBufferRange)( GLcontext *ctx, GLenum target, GLintptr offset,
 767                              GLsizeiptr length, GLbitfield access,
 768                              struct gl_buffer_object *obj);
 769
 770    void (*FlushMappedBufferRange)(GLcontext *ctx, GLenum target,
 771                                   GLintptr offset, GLsizeiptr length,
 772                                   struct gl_buffer_object *obj);
 773
 774    GLboolean (*UnmapBuffer)( GLcontext *ctx, GLenum target,
 775                              struct gl_buffer_object *obj );
 776    /*@}*/
 777 #endif
 778
 779    /**
 780     * \name Functions for GL_APPLE_object_purgeable
 781     */
 782 #if FEATURE_APPLE_object_purgeable
 783    /*@{*/
 784    /* variations on ObjectPurgeable */
 785    GLenum (*BufferObjectPurgeable)( GLcontext *ctx, struct gl_buffer_object *obj, GLenum option );
 786    GLenum (*RenderObjectPurgeable)( GLcontext *ctx, struct gl_renderbuffer *obj, GLenum option );
 787    GLenum (*TextureObjectPurgeable)( GLcontext *ctx, struct gl_texture_object *obj, GLenum option );
 788
 789    /* variations on ObjectUnpurgeable */
 790    GLenum (*BufferObjectUnpurgeable)( GLcontext *ctx, struct gl_buffer_object *obj, GLenum option );
 791    GLenum (*RenderObjectUnpurgeable)( GLcontext *ctx, struct gl_renderbuffer *obj, GLenum option );
 792    GLenum (*TextureObjectUnpurgeable)( GLcontext *ctx, struct gl_texture_object *obj, GLenum option );
 793    /*@}*/
 794 #endif
 795
 796    /**
 797     * \name Functions for GL_EXT_framebuffer_object
 798     */
 799 #if FEATURE_EXT_framebuffer_object
 800    /*@{*/
 801    struct gl_framebuffer * (*NewFramebuffer)(GLcontext *ctx, GLuint name);
 802    struct gl_renderbuffer * (*NewRenderbuffer)(GLcontext *ctx, GLuint name);
 803    void (*BindFramebuffer)(GLcontext *ctx, GLenum target,
 804                            struct gl_framebuffer *drawFb,
 805                            struct gl_framebuffer *readFb);
 806    void (*FramebufferRenderbuffer)(GLcontext *ctx,
 807                                    struct gl_framebuffer *fb,
 808                                    GLenum attachment,
 809                                    struct gl_renderbuffer *rb);
 810    void (*RenderTexture)(GLcontext *ctx,
 811                          struct gl_framebuffer *fb,
 812                          struct gl_renderbuffer_attachment *att);
 813    void (*FinishRenderTexture)(GLcontext *ctx,
 814                                struct gl_renderbuffer_attachment *att);
 815    void (*ValidateFramebuffer)(GLcontext *ctx,
 816                                struct gl_framebuffer *fb);
 817    /*@}*/
 818 #endif
 819 #if FEATURE_EXT_framebuffer_blit
 820    void (*BlitFramebuffer)(GLcontext *ctx,
 821                            GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,
 822                            GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1,
 823                            GLbitfield mask, GLenum filter);
 824 #endif
 825
 826    /**
 827     * \name Query objects
 828     */
 829    /*@{*/
 830    struct gl_query_object * (*NewQueryObject)(GLcontext *ctx, GLuint id);
 831    void (*DeleteQuery)(GLcontext *ctx, struct gl_query_object *q);
 832    void (*BeginQuery)(GLcontext *ctx, struct gl_query_object *q);
 833    void (*EndQuery)(GLcontext *ctx, struct gl_query_object *q);
 834    void (*CheckQuery)(GLcontext *ctx, struct gl_query_object *q);
 835    void (*WaitQuery)(GLcontext *ctx, struct gl_query_object *q);
 836    /*@}*/
 837
 838
 839    /**
 840     * \name Vertex Array objects
 841     */
 842    /*@{*/
 843    struct gl_array_object * (*NewArrayObject)(GLcontext *ctx, GLuint id);
 844    void (*DeleteArrayObject)(GLcontext *ctx, struct gl_array_object *obj);
 845    void (*BindArrayObject)(GLcontext *ctx, struct gl_array_object *obj);
 846    /*@}*/
 847
 848    /**
 849     * \name GLSL-related functions (ARB extensions and OpenGL 2.x)
 850     */
 851    /*@{*/
 852    struct gl_shader *(*NewShader)(GLcontext *ctx, GLuint name, GLenum type);
 853    void (*DeleteShader)(GLcontext *ctx, struct gl_shader *shader);
 854    struct gl_shader_program *(*NewShaderProgram)(GLcontext *ctx, GLuint name);
 855    void (*DeleteShaderProgram)(GLcontext *ctx,
 856                                struct gl_shader_program *shProg);
 857    void (*UseProgram)(GLcontext *ctx, struct gl_shader_program *shProg);
 858    /*@}*/
 859
 860
 861    /**
 862     * \name Support for multiple T&L engines
 863     */
 864    /*@{*/
 865
 866    /**
 867     * Bitmask of state changes that require the current T&L module to be
 868     * validated, using ValidateTnlModule() below.
 869     */
 870    GLuint NeedValidate;
 871
 872    /**
 873     * Validate the current T&L module.
 874     *
 875     * This is called directly after UpdateState() when a state change that has
 876     * occurred matches the dd_function_table::NeedValidate bitmask above.  This
 877     * ensures all computed values are up to date, thus allowing the driver to
 878     * decide if the current T&L module needs to be swapped out.
 879     *
 880     * This must be non-NULL if a driver installs a custom T&L module and sets
 881     * the dd_function_table::NeedValidate bitmask, but may be NULL otherwise.
 882     */
 883    void (*ValidateTnlModule)( GLcontext *ctx, GLuint new_state );
 884
 885
 886 #define PRIM_OUTSIDE_BEGIN_END   (GL_POLYGON+1)
 887 #define PRIM_INSIDE_UNKNOWN_PRIM (GL_POLYGON+2)
 888 #define PRIM_UNKNOWN             (GL_POLYGON+3)
 889
 890    /**
 891     * Set by the driver-supplied T&L engine.
 892     *
 893     * Set to PRIM_OUTSIDE_BEGIN_END when outside glBegin()/glEnd().
 894     */
 895    GLuint CurrentExecPrimitive;
 896
 897    /**
 898     * Current state of an in-progress compilation.
 899     *
 900     * May take on any of the additional values PRIM_OUTSIDE_BEGIN_END,
 901     * PRIM_INSIDE_UNKNOWN_PRIM or PRIM_UNKNOWN defined above.
 902     */
 903    GLuint CurrentSavePrimitive;
 904
 905
 906 #define FLUSH_STORED_VERTICES 0x1
 907 #define FLUSH_UPDATE_CURRENT  0x2
 908    /**
 909     * Set by the driver-supplied T&L engine whenever vertices are buffered
 910     * between glBegin()/glEnd() objects or __GLcontextRec::Current is not
 911     * updated.
 912     *
 913     * The dd_function_table::FlushVertices call below may be used to resolve
 914     * these conditions.
 915     */
 916    GLuint NeedFlush;
 917    GLuint SaveNeedFlush;
 918
 919
 920    /* Called prior to any of the GLvertexformat functions being
 921     * called.  Paired with Driver.FlushVertices().
 922     */
 923    void (*BeginVertices)( GLcontext *ctx );
 924
 925    /**
 926     * If inside glBegin()/glEnd(), it should ASSERT(0).  Otherwise, if
 927     * FLUSH_STORED_VERTICES bit in \p flags is set flushes any buffered
 928     * vertices, if FLUSH_UPDATE_CURRENT bit is set updates
 929     * __GLcontextRec::Current and gl_light_attrib::Material
 930     *
 931     * Note that the default T&L engine never clears the
 932     * FLUSH_UPDATE_CURRENT bit, even after performing the update.
 933     */
 934    void (*FlushVertices)( GLcontext *ctx, GLuint flags );
 935    void (*SaveFlushVertices)( GLcontext *ctx );
 936
 937    /**
 938     * Give the driver the opportunity to hook in its own vtxfmt for
 939     * compiling optimized display lists.  This is called on each valid
 940     * glBegin() during list compilation.
 941     */
 942    GLboolean (*NotifySaveBegin)( GLcontext *ctx, GLenum mode );
 943
 944    /**
 945     * Notify driver that the special derived value _NeedEyeCoords has
 946     * changed.
 947     */
 948    void (*LightingSpaceChange)( GLcontext *ctx );
 949
 950    /**
 951     * Called by glNewList().
 952     *
 953     * Let the T&L component know what is going on with display lists
 954     * in time to make changes to dispatch tables, etc.
 955     */
 956    void (*NewList)( GLcontext *ctx, GLuint list, GLenum mode );
 957    /**
 958     * Called by glEndList().
 959     *
 960     * \sa dd_function_table::NewList.
 961     */
 962    void (*EndList)( GLcontext *ctx );
 963
 964    /**
 965     * Called by glCallList(s).
 966     *
 967     * Notify the T&L component before and after calling a display list.
 968     */
 969    void (*BeginCallList)( GLcontext *ctx,
 970                           struct gl_display_list *dlist );
 971    /**
 972     * Called by glEndCallList().
 973     *
 974     * \sa dd_function_table::BeginCallList.
 975     */
 976    void (*EndCallList)( GLcontext *ctx );
 977
 978
 979 #if FEATURE_ARB_sync
 980    /**
 981     * \name GL_ARB_sync interfaces
 982     */
 983    /*@{*/
 984    struct gl_sync_object * (*NewSyncObject)(GLcontext *, GLenum);
 985    void (*FenceSync)(GLcontext *, struct gl_sync_object *, GLenum, GLbitfield);
 986    void (*DeleteSyncObject)(GLcontext *, struct gl_sync_object *);
 987    void (*CheckSync)(GLcontext *, struct gl_sync_object *);
 988    void (*ClientWaitSync)(GLcontext *, struct gl_sync_object *,
 989                           GLbitfield, GLuint64);
 990    void (*ServerWaitSync)(GLcontext *, struct gl_sync_object *,
 991                           GLbitfield, GLuint64);
 992    /*@}*/
 993 #endif
 994
 995    /** GL_NV_conditional_render */
 996    void (*BeginConditionalRender)(GLcontext *ctx, struct gl_query_object *q,
 997                                   GLenum mode);
 998    void (*EndConditionalRender)(GLcontext *ctx, struct gl_query_object *q);
 999
1000 #if FEATURE_OES_draw_texture
1001    /**
1002     * \name GL_OES_draw_texture interface
1003     */
1004    /*@{*/
1005    void (*DrawTex)(GLcontext *ctx, GLfloat x, GLfloat y, GLfloat z,
1006                    GLfloat width, GLfloat height);
1007    /*@}*/
1008 #endif
1009
1010 #if FEATURE_OES_EGL_image
1011    void (*EGLImageTargetTexture2D)(GLcontext *ctx, GLenum target,
1012                                    struct gl_texture_object *texObj,
1013                                    struct gl_texture_image *texImage,
1014                                    GLeglImageOES image_handle);
1015    void (*EGLImageTargetRenderbufferStorage)(GLcontext *ctx,
1016                                              struct gl_renderbuffer *rb,
1017                                              void *image_handle);
1018 #endif
1019
1020 #if FEATURE_EXT_transform_feedback
1021    struct gl_transform_feedback_object *
1022         (*NewTransformFeedback)(GLcontext *ctx, GLuint name);
1023    void (*DeleteTransformFeedback)(GLcontext *ctx,
1024                                    struct gl_transform_feedback_object *obj);
1025    void (*BeginTransformFeedback)(GLcontext *ctx, GLenum mode,
1026                                   struct gl_transform_feedback_object *obj);
1027    void (*EndTransformFeedback)(GLcontext *ctx,
1028                                 struct gl_transform_feedback_object *obj);
1029    void (*PauseTransformFeedback)(GLcontext *ctx,
1030                                   struct gl_transform_feedback_object *obj);
1031    void (*ResumeTransformFeedback)(GLcontext *ctx,
1032                                    struct gl_transform_feedback_object *obj);
1033    void (*DrawTransformFeedback)(GLcontext *ctx, GLenum mode,
1034                                  struct gl_transform_feedback_object *obj);
1035 #endif
1036 };
1037
1038
1039 /**
1040  * Transform/Clip/Lighting interface
1041  *
1042  * Drivers present a reduced set of the functions possible in
1043  * glBegin()/glEnd() objects.  Core mesa provides translation stubs for the
1044  * remaining functions to map down to these entry points.
1045  *
1046  * These are the initial values to be installed into dispatch by
1047  * mesa.  If the T&L driver wants to modify the dispatch table
1048  * while installed, it must do so itself.  It would be possible for
1049  * the vertexformat to install its own initial values for these
1050  * functions, but this way there is an obvious list of what is
1051  * expected of the driver.
1052  *
1053  * If the driver wants to hook in entry points other than those
1054  * listed, it must restore them to their original values in
1055  * the disable() callback, below.
1056  */
1057 typedef struct {
1058    /**
1059     * \name Vertex
1060     */
1061    /*@{*/
1062    void (GLAPIENTRYP ArrayElement)( GLint );
1063    void (GLAPIENTRYP Color3f)( GLfloat, GLfloat, GLfloat );
1064    void (GLAPIENTRYP Color3fv)( const GLfloat * );
1065    void (GLAPIENTRYP Color4f)( GLfloat, GLfloat, GLfloat, GLfloat );
1066    void (GLAPIENTRYP Color4fv)( const GLfloat * );
1067    void (GLAPIENTRYP EdgeFlag)( GLboolean );
1068    void (GLAPIENTRYP EvalCoord1f)( GLfloat );
1069    void (GLAPIENTRYP EvalCoord1fv)( const GLfloat * );
1070    void (GLAPIENTRYP EvalCoord2f)( GLfloat, GLfloat );
1071    void (GLAPIENTRYP EvalCoord2fv)( const GLfloat * );
1072    void (GLAPIENTRYP EvalPoint1)( GLint );
1073    void (GLAPIENTRYP EvalPoint2)( GLint, GLint );
1074    void (GLAPIENTRYP FogCoordfEXT)( GLfloat );
1075    void (GLAPIENTRYP FogCoordfvEXT)( const GLfloat * );
1076    void (GLAPIENTRYP Indexf)( GLfloat );
1077    void (GLAPIENTRYP Indexfv)( const GLfloat * );
1078    void (GLAPIENTRYP Materialfv)( GLenum face, GLenum pname, const GLfloat * );
1079    void (GLAPIENTRYP MultiTexCoord1fARB)( GLenum, GLfloat );
1080    void (GLAPIENTRYP MultiTexCoord1fvARB)( GLenum, const GLfloat * );
1081    void (GLAPIENTRYP MultiTexCoord2fARB)( GLenum, GLfloat, GLfloat );
1082    void (GLAPIENTRYP MultiTexCoord2fvARB)( GLenum, const GLfloat * );
1083    void (GLAPIENTRYP MultiTexCoord3fARB)( GLenum, GLfloat, GLfloat, GLfloat );
1084    void (GLAPIENTRYP MultiTexCoord3fvARB)( GLenum, const GLfloat * );
1085    void (GLAPIENTRYP MultiTexCoord4fARB)( GLenum, GLfloat, GLfloat, GLfloat, GLfloat );
1086    void (GLAPIENTRYP MultiTexCoord4fvARB)( GLenum, const GLfloat * );
1087    void (GLAPIENTRYP Normal3f)( GLfloat, GLfloat, GLfloat );
1088    void (GLAPIENTRYP Normal3fv)( const GLfloat * );
1089    void (GLAPIENTRYP SecondaryColor3fEXT)( GLfloat, GLfloat, GLfloat );
1090    void (GLAPIENTRYP SecondaryColor3fvEXT)( const GLfloat * );
1091    void (GLAPIENTRYP TexCoord1f)( GLfloat );
1092    void (GLAPIENTRYP TexCoord1fv)( const GLfloat * );
1093    void (GLAPIENTRYP TexCoord2f)( GLfloat, GLfloat );
1094    void (GLAPIENTRYP TexCoord2fv)( const GLfloat * );
1095    void (GLAPIENTRYP TexCoord3f)( GLfloat, GLfloat, GLfloat );
1096    void (GLAPIENTRYP TexCoord3fv)( const GLfloat * );
1097    void (GLAPIENTRYP TexCoord4f)( GLfloat, GLfloat, GLfloat, GLfloat );
1098    void (GLAPIENTRYP TexCoord4fv)( const GLfloat * );
1099    void (GLAPIENTRYP Vertex2f)( GLfloat, GLfloat );
1100    void (GLAPIENTRYP Vertex2fv)( const GLfloat * );
1101    void (GLAPIENTRYP Vertex3f)( GLfloat, GLfloat, GLfloat );
1102    void (GLAPIENTRYP Vertex3fv)( const GLfloat * );
1103    void (GLAPIENTRYP Vertex4f)( GLfloat, GLfloat, GLfloat, GLfloat );
1104    void (GLAPIENTRYP Vertex4fv)( const GLfloat * );
1105    void (GLAPIENTRYP CallList)( GLuint );
1106    void (GLAPIENTRYP CallLists)( GLsizei, GLenum, const GLvoid * );
1107    void (GLAPIENTRYP Begin)( GLenum );
1108    void (GLAPIENTRYP End)( void );
1109    /* GL_NV_vertex_program */
1110    void (GLAPIENTRYP VertexAttrib1fNV)( GLuint index, GLfloat x );
1111    void (GLAPIENTRYP VertexAttrib1fvNV)( GLuint index, const GLfloat *v );
1112    void (GLAPIENTRYP VertexAttrib2fNV)( GLuint index, GLfloat x, GLfloat y );
1113    void (GLAPIENTRYP VertexAttrib2fvNV)( GLuint index, const GLfloat *v );
1114    void (GLAPIENTRYP VertexAttrib3fNV)( GLuint index, GLfloat x, GLfloat y, GLfloat z );
1115    void (GLAPIENTRYP VertexAttrib3fvNV)( GLuint index, const GLfloat *v );
1116    void (GLAPIENTRYP VertexAttrib4fNV)( GLuint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w );
1117    void (GLAPIENTRYP VertexAttrib4fvNV)( GLuint index, const GLfloat *v );
1118 #if FEATURE_ARB_vertex_program
1119    void (GLAPIENTRYP VertexAttrib1fARB)( GLuint index, GLfloat x );
1120    void (GLAPIENTRYP VertexAttrib1fvARB)( GLuint index, const GLfloat *v );
1121    void (GLAPIENTRYP VertexAttrib2fARB)( GLuint index, GLfloat x, GLfloat y );
1122    void (GLAPIENTRYP VertexAttrib2fvARB)( GLuint index, const GLfloat *v );
1123    void (GLAPIENTRYP VertexAttrib3fARB)( GLuint index, GLfloat x, GLfloat y, GLfloat z );
1124    void (GLAPIENTRYP VertexAttrib3fvARB)( GLuint index, const GLfloat *v );
1125    void (GLAPIENTRYP VertexAttrib4fARB)( GLuint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w );
1126    void (GLAPIENTRYP VertexAttrib4fvARB)( GLuint index, const GLfloat *v );
1127 #endif
1128    /*@}*/
1129
1130    void (GLAPIENTRYP Rectf)( GLfloat, GLfloat, GLfloat, GLfloat );
1131
1132    /**
1133     * \name Array
1134     */
1135    /*@{*/
1136    void (GLAPIENTRYP DrawArrays)( GLenum mode, GLint start, GLsizei count );
1137    void (GLAPIENTRYP DrawElements)( GLenum mode, GLsizei count, GLenum type,
1138                          const GLvoid *indices );
1139    void (GLAPIENTRYP DrawRangeElements)( GLenum mode, GLuint start,
1140                               GLuint end, GLsizei count,
1141                               GLenum type, const GLvoid *indices );
1142    void (GLAPIENTRYP MultiDrawElementsEXT)( GLenum mode, const GLsizei *count,
1143                                             GLenum type,
1144                                             const GLvoid **indices,
1145                                             GLsizei primcount);
1146    void (GLAPIENTRYP DrawElementsBaseVertex)( GLenum mode, GLsizei count,
1147                                               GLenum type,
1148                                               const GLvoid *indices,
1149                                               GLint basevertex );
1150    void (GLAPIENTRYP DrawRangeElementsBaseVertex)( GLenum mode, GLuint start,
1151                                                    GLuint end, GLsizei count,
1152                                                    GLenum type,
1153                                                    const GLvoid *indices,
1154                                                    GLint basevertex);
1155    void (GLAPIENTRYP MultiDrawElementsBaseVertex)( GLenum mode,
1156                                                    const GLsizei *count,
1157                                                    GLenum type,
1158                                                    const GLvoid **indices,
1159                                                    GLsizei primcount,
1160                                                    const GLint *basevertex);
1161    void (GLAPIENTRYP DrawArraysInstanced)(GLenum mode, GLint first,
1162                                           GLsizei count, GLsizei primcount);
1163    void (GLAPIENTRYP DrawElementsInstanced)(GLenum mode, GLsizei count,
1164                                             GLenum type, const GLvoid *indices,
1165                                             GLsizei primcount);
1166    /*@}*/
1167
1168    /**
1169     * \name Eval
1170     *
1171     * If you don't support eval, fallback to the default vertex format
1172     * on receiving an eval call and use the pipeline mechanism to
1173     * provide partial T&L acceleration.
1174     *
1175     * Mesa will provide a set of helper functions to do eval within
1176     * accelerated vertex formats, eventually...
1177     */
1178    /*@{*/
1179    void (GLAPIENTRYP EvalMesh1)( GLenum mode, GLint i1, GLint i2 );
1180    void (GLAPIENTRYP EvalMesh2)( GLenum mode, GLint i1, GLint i2, GLint j1, GLint j2 );
1181    /*@}*/
1182
1183 } GLvertexformat;
1184
1185
1186 #endif /* DD_INCLUDED */