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 texture format.
 193     *
 194     * This is called by the \c _mesa_store_tex[sub]image[123]d() fallback
 195     * functions.  The driver should examine \p internalFormat and return a
 196     * gl_format value.
 197     */
 198    GLuint (*ChooseTextureFormat)( struct gl_context *ctx, GLint internalFormat,
 199                                      GLenum srcFormat, GLenum srcType );
 200
 201    /**
 202     * Called by glTexImage1D().
 203     *
 204     * \param target user specified.
 205     * \param format user specified.
 206     * \param type user specified.
 207     * \param pixels user specified.
 208     * \param packing indicates the image packing of pixels.
 209     * \param texObj is the target texture object.
 210     * \param texImage is the target texture image.  It will have the texture \p
 211     * width, \p height, \p depth, \p border and \p internalFormat information.
 212     *
 213     * \p retainInternalCopy is returned by this function and indicates whether
 214     * core Mesa should keep an internal copy of the texture image.
 215     *
 216     * Drivers should call a fallback routine from texstore.c if needed.
 217     */
 218    void (*TexImage1D)( struct gl_context *ctx, GLenum target, GLint level,
 219                        GLint internalFormat,
 220                        GLint width, GLint border,
 221                        GLenum format, GLenum type, const GLvoid *pixels,
 222                        const struct gl_pixelstore_attrib *packing,
 223                        struct gl_texture_object *texObj,
 224                        struct gl_texture_image *texImage );
 225
 226    /**
 227     * Called by glTexImage2D().
 228     *
 229     * \sa dd_function_table::TexImage1D.
 230     */
 231    void (*TexImage2D)( struct gl_context *ctx, GLenum target, GLint level,
 232                        GLint internalFormat,
 233                        GLint width, GLint height, GLint border,
 234                        GLenum format, GLenum type, const GLvoid *pixels,
 235                        const struct gl_pixelstore_attrib *packing,
 236                        struct gl_texture_object *texObj,
 237                        struct gl_texture_image *texImage );
 238
 239    /**
 240     * Called by glTexImage3D().
 241     *
 242     * \sa dd_function_table::TexImage1D.
 243     */
 244    void (*TexImage3D)( struct gl_context *ctx, GLenum target, GLint level,
 245                        GLint internalFormat,
 246                        GLint width, GLint height, GLint depth, GLint border,
 247                        GLenum format, GLenum type, const GLvoid *pixels,
 248                        const struct gl_pixelstore_attrib *packing,
 249                        struct gl_texture_object *texObj,
 250                        struct gl_texture_image *texImage );
 251
 252    /**
 253     * Called by glTexSubImage1D().
 254     *
 255     * \param target user specified.
 256     * \param level user specified.
 257     * \param xoffset user specified.
 258     * \param yoffset user specified.
 259     * \param zoffset user specified.
 260     * \param width user specified.
 261     * \param height user specified.
 262     * \param depth user specified.
 263     * \param format user specified.
 264     * \param type user specified.
 265     * \param pixels user specified.
 266     * \param packing indicates the image packing of pixels.
 267     * \param texObj is the target texture object.
 268     * \param texImage is the target texture image.  It will have the texture \p
 269     * width, \p height, \p border and \p internalFormat information.
 270     *
 271     * The driver should use a fallback routine from texstore.c if needed.
 272     */
 273    void (*TexSubImage1D)( struct gl_context *ctx, GLenum target, GLint level,
 274                           GLint xoffset, GLsizei width,
 275                           GLenum format, GLenum type,
 276                           const GLvoid *pixels,
 277                           const struct gl_pixelstore_attrib *packing,
 278                           struct gl_texture_object *texObj,
 279                           struct gl_texture_image *texImage );
 280
 281    /**
 282     * Called by glTexSubImage2D().
 283     *
 284     * \sa dd_function_table::TexSubImage1D.
 285     */
 286    void (*TexSubImage2D)( struct gl_context *ctx, GLenum target, GLint level,
 287                           GLint xoffset, GLint yoffset,
 288                           GLsizei width, GLsizei height,
 289                           GLenum format, GLenum type,
 290                           const GLvoid *pixels,
 291                           const struct gl_pixelstore_attrib *packing,
 292                           struct gl_texture_object *texObj,
 293                           struct gl_texture_image *texImage );
 294
 295    /**
 296     * Called by glTexSubImage3D().
 297     *
 298     * \sa dd_function_table::TexSubImage1D.
 299     */
 300    void (*TexSubImage3D)( struct gl_context *ctx, GLenum target, GLint level,
 301                           GLint xoffset, GLint yoffset, GLint zoffset,
 302                           GLsizei width, GLsizei height, GLint depth,
 303                           GLenum format, GLenum type,
 304                           const GLvoid *pixels,
 305                           const struct gl_pixelstore_attrib *packing,
 306                           struct gl_texture_object *texObj,
 307                           struct gl_texture_image *texImage );
 308
 309    /**
 310     * Called by glGetTexImage().
 311     */
 312    void (*GetTexImage)( struct gl_context *ctx, GLenum target, GLint level,
 313                         GLenum format, GLenum type, GLvoid *pixels,
 314                         struct gl_texture_object *texObj,
 315                         struct gl_texture_image *texImage );
 316
 317    /**
 318     * Called by glCopyTexImage1D().
 319     *
 320     * Drivers should use a fallback routine from texstore.c if needed.
 321     */
 322    void (*CopyTexImage1D)( struct gl_context *ctx, GLenum target, GLint level,
 323                            GLenum internalFormat, GLint x, GLint y,
 324                            GLsizei width, GLint border );
 325
 326    /**
 327     * Called by glCopyTexImage2D().
 328     *
 329     * Drivers should use a fallback routine from texstore.c if needed.
 330     */
 331    void (*CopyTexImage2D)( struct gl_context *ctx, GLenum target, GLint level,
 332                            GLenum internalFormat, GLint x, GLint y,
 333                            GLsizei width, GLsizei height, GLint border );
 334
 335    /**
 336     * Called by glCopyTexSubImage1D().
 337     *
 338     * Drivers should use a fallback routine from texstore.c if needed.
 339     */
 340    void (*CopyTexSubImage1D)( struct gl_context *ctx, GLenum target, GLint level,
 341                               GLint xoffset,
 342                               GLint x, GLint y, GLsizei width );
 343    /**
 344     * Called by glCopyTexSubImage2D().
 345     *
 346     * Drivers should use a fallback routine from texstore.c if needed.
 347     */
 348    void (*CopyTexSubImage2D)( struct gl_context *ctx, GLenum target, GLint level,
 349                               GLint xoffset, GLint yoffset,
 350                               GLint x, GLint y,
 351                               GLsizei width, GLsizei height );
 352    /**
 353     * Called by glCopyTexSubImage3D().
 354     *
 355     * Drivers should use a fallback routine from texstore.c if needed.
 356     */
 357    void (*CopyTexSubImage3D)( struct gl_context *ctx, GLenum target, GLint level,
 358                               GLint xoffset, GLint yoffset, GLint zoffset,
 359                               GLint x, GLint y,
 360                               GLsizei width, GLsizei height );
 361
 362    /**
 363     * Called by glGenerateMipmap() or when GL_GENERATE_MIPMAP_SGIS is enabled.
 364     */
 365    void (*GenerateMipmap)(struct gl_context *ctx, GLenum target,
 366                           struct gl_texture_object *texObj);
 367
 368    /**
 369     * Called by glTexImage[123]D when user specifies a proxy texture
 370     * target.
 371     *
 372     * \return GL_TRUE if the proxy test passes, or GL_FALSE if the test fails.
 373     */
 374    GLboolean (*TestProxyTexImage)(struct gl_context *ctx, GLenum target,
 375                                   GLint level, GLint internalFormat,
 376                                   GLenum format, GLenum type,
 377                                   GLint width, GLint height,
 378                                   GLint depth, GLint border);
 379    /*@}*/
 380
 381
 382    /**
 383     * \name Compressed texture functions
 384     */
 385    /*@{*/
 386
 387    /**
 388     * Called by glCompressedTexImage1D().
 389     *
 390     * \param target user specified.
 391     * \param format user specified.
 392     * \param type user specified.
 393     * \param pixels user specified.
 394     * \param packing indicates the image packing of pixels.
 395     * \param texObj is the target texture object.
 396     * \param texImage is the target texture image.  It will have the texture \p
 397     * width, \p height, \p depth, \p border and \p internalFormat information.
 398     *
 399     * \a retainInternalCopy is returned by this function and indicates whether
 400     * core Mesa should keep an internal copy of the texture image.
 401     */
 402    void (*CompressedTexImage1D)( struct gl_context *ctx, GLenum target,
 403                                  GLint level, GLint internalFormat,
 404                                  GLsizei width, GLint border,
 405                                  GLsizei imageSize, const GLvoid *data,
 406                                  struct gl_texture_object *texObj,
 407                                  struct gl_texture_image *texImage );
 408    /**
 409     * Called by glCompressedTexImage2D().
 410     *
 411     * \sa dd_function_table::CompressedTexImage1D.
 412     */
 413    void (*CompressedTexImage2D)( struct gl_context *ctx, GLenum target,
 414                                  GLint level, GLint internalFormat,
 415                                  GLsizei width, GLsizei height, GLint border,
 416                                  GLsizei imageSize, const GLvoid *data,
 417                                  struct gl_texture_object *texObj,
 418                                  struct gl_texture_image *texImage );
 419    /**
 420     * Called by glCompressedTexImage3D().
 421     *
 422     * \sa dd_function_table::CompressedTexImage3D.
 423     */
 424    void (*CompressedTexImage3D)( struct gl_context *ctx, GLenum target,
 425                                  GLint level, GLint internalFormat,
 426                                  GLsizei width, GLsizei height, GLsizei depth,
 427                                  GLint border,
 428                                  GLsizei imageSize, const GLvoid *data,
 429                                  struct gl_texture_object *texObj,
 430                                  struct gl_texture_image *texImage );
 431
 432    /**
 433     * Called by glCompressedTexSubImage1D().
 434     *
 435     * \param target user specified.
 436     * \param level user specified.
 437     * \param xoffset user specified.
 438     * \param yoffset user specified.
 439     * \param zoffset user specified.
 440     * \param width user specified.
 441     * \param height user specified.
 442     * \param depth user specified.
 443     * \param imageSize user specified.
 444     * \param data user specified.
 445     * \param texObj is the target texture object.
 446     * \param texImage is the target texture image.  It will have the texture \p
 447     * width, \p height, \p depth, \p border and \p internalFormat information.
 448     */
 449    void (*CompressedTexSubImage1D)(struct gl_context *ctx, GLenum target, GLint level,
 450                                    GLint xoffset, GLsizei width,
 451                                    GLenum format,
 452                                    GLsizei imageSize, const GLvoid *data,
 453                                    struct gl_texture_object *texObj,
 454                                    struct gl_texture_image *texImage);
 455    /**
 456     * Called by glCompressedTexSubImage2D().
 457     *
 458     * \sa dd_function_table::CompressedTexImage3D.
 459     */
 460    void (*CompressedTexSubImage2D)(struct gl_context *ctx, GLenum target, GLint level,
 461                                    GLint xoffset, GLint yoffset,
 462                                    GLsizei width, GLint height,
 463                                    GLenum format,
 464                                    GLsizei imageSize, const GLvoid *data,
 465                                    struct gl_texture_object *texObj,
 466                                    struct gl_texture_image *texImage);
 467    /**
 468     * Called by glCompressedTexSubImage3D().
 469     *
 470     * \sa dd_function_table::CompressedTexImage3D.
 471     */
 472    void (*CompressedTexSubImage3D)(struct gl_context *ctx, GLenum target, GLint level,
 473                                    GLint xoffset, GLint yoffset, GLint zoffset,
 474                                    GLsizei width, GLint height, GLint depth,
 475                                    GLenum format,
 476                                    GLsizei imageSize, const GLvoid *data,
 477                                    struct gl_texture_object *texObj,
 478                                    struct gl_texture_image *texImage);
 479
 480
 481    /**
 482     * Called by glGetCompressedTexImage.
 483     */
 484    void (*GetCompressedTexImage)(struct gl_context *ctx, GLenum target, GLint level,
 485                                  GLvoid *img,
 486                                  struct gl_texture_object *texObj,
 487                                  struct gl_texture_image *texImage);
 488
 489    /*@}*/
 490
 491    /**
 492     * \name Texture object functions
 493     */
 494    /*@{*/
 495
 496    /**
 497     * Called by glBindTexture().
 498     */
 499    void (*BindTexture)( struct gl_context *ctx, GLenum target,
 500                         struct gl_texture_object *tObj );
 501
 502    /**
 503     * Called to allocate a new texture object.
 504     * A new gl_texture_object should be returned.  The driver should
 505     * attach to it any device-specific info it needs.
 506     */
 507    struct gl_texture_object * (*NewTextureObject)( struct gl_context *ctx, GLuint name,
 508                                                    GLenum target );
 509    /**
 510     * Called when a texture object is about to be deallocated.
 511     *
 512     * Driver should delete the gl_texture_object object and anything
 513     * hanging off of it.
 514     */
 515    void (*DeleteTexture)( struct gl_context *ctx, struct gl_texture_object *tObj );
 516
 517    /**
 518     * Called to allocate a new texture image object.
 519     */
 520    struct gl_texture_image * (*NewTextureImage)( struct gl_context *ctx );
 521
 522    /**
 523     * Called to free tImage->Data.
 524     */
 525    void (*FreeTexImageData)( struct gl_context *ctx, struct gl_texture_image *tImage );
 526
 527    /** Map texture image data into user space */
 528    void (*MapTexture)( struct gl_context *ctx, struct gl_texture_object *tObj );
 529    /** Unmap texture images from user space */
 530    void (*UnmapTexture)( struct gl_context *ctx, struct gl_texture_object *tObj );
 531
 532    /**
 533     * Note: no context argument.  This function doesn't initially look
 534     * like it belongs here, except that the driver is the only entity
 535     * that knows for sure how the texture memory is allocated - via
 536     * the above callbacks.  There is then an argument that the driver
 537     * knows what memcpy paths might be fast.  Typically this is invoked with
 538     *
 539     * to -- a pointer into texture memory allocated by NewTextureImage() above.
 540     * from -- a pointer into client memory or a mesa temporary.
 541     * sz -- nr bytes to copy.
 542     */
 543    void* (*TextureMemCpy)( void *to, const void *from, size_t sz );
 544
 545    /**
 546     * Called by glAreTextureResident().
 547     */
 548    GLboolean (*IsTextureResident)( struct gl_context *ctx,
 549                                    struct gl_texture_object *t );
 550
 551    /**
 552     * Called when the texture's color lookup table is changed.
 553     *
 554     * If \p tObj is NULL then the shared texture palette
 555     * gl_texture_object::Palette is to be updated.
 556     */
 557    void (*UpdateTexturePalette)( struct gl_context *ctx,
 558                                  struct gl_texture_object *tObj );
 559    /*@}*/
 560
 561
 562    /**
 563     * \name Imaging functionality
 564     */
 565    /*@{*/
 566    void (*CopyColorTable)( struct gl_context *ctx,
 567                            GLenum target, GLenum internalformat,
 568                            GLint x, GLint y, GLsizei width );
 569
 570    void (*CopyColorSubTable)( struct gl_context *ctx,
 571                               GLenum target, GLsizei start,
 572                               GLint x, GLint y, GLsizei width );
 573    /*@}*/
 574
 575
 576    /**
 577     * \name Vertex/fragment program functions
 578     */
 579    /*@{*/
 580    /** Bind a vertex/fragment program */
 581    void (*BindProgram)(struct gl_context *ctx, GLenum target, struct gl_program *prog);
 582    /** Allocate a new program */
 583    struct gl_program * (*NewProgram)(struct gl_context *ctx, GLenum target, GLuint id);
 584    /** Delete a program */
 585    void (*DeleteProgram)(struct gl_context *ctx, struct gl_program *prog);
 586    /**
 587     * Notify driver that a program string (and GPU code) has been specified
 588     * or modified.  Return GL_TRUE or GL_FALSE to indicate if the program is
 589     * supported by the driver.
 590     */
 591    GLboolean (*ProgramStringNotify)(struct gl_context *ctx, GLenum target,
 592                                     struct gl_program *prog);
 593
 594    /** Query if program can be loaded onto hardware */
 595    GLboolean (*IsProgramNative)(struct gl_context *ctx, GLenum target,
 596                                 struct gl_program *prog);
 597
 598    /*@}*/
 599
 600    /**
 601     * \name GLSL shader/program functions.
 602     */
 603    /*@{*/
 604    /**
 605     * Called when a shader is compiled.
 606     *
 607     * Note that not all shader objects get ShaderCompile called on
 608     * them.  Notably, the shaders containing builtin functions do not
 609     * have CompileShader() called, so if lowering passes are done they
 610     * need to also be performed in LinkShader().
 611     */
 612    GLboolean (*CompileShader)(struct gl_context *ctx, struct gl_shader *shader);
 613    /**
 614     * Called when a shader program is linked.
 615     *
 616     * This gives drivers an opportunity to clone the IR and make their
 617     * own transformations on it for the purposes of code generation.
 618     */
 619    GLboolean (*LinkShader)(struct gl_context *ctx, struct gl_shader_program *shader);
 620    /*@}*/
 621
 622    /**
 623     * \name State-changing functions.
 624     *
 625     * \note drawing functions are above.
 626     *
 627     * These functions are called by their corresponding OpenGL API functions.
 628     * They are \e also called by the gl_PopAttrib() function!!!
 629     * May add more functions like these to the device driver in the future.
 630     */
 631    /*@{*/
 632    /** Specify the alpha test function */
 633    void (*AlphaFunc)(struct gl_context *ctx, GLenum func, GLfloat ref);
 634    /** Set the blend color */
 635    void (*BlendColor)(struct gl_context *ctx, const GLfloat color[4]);
 636    /** Set the blend equation */
 637    void (*BlendEquationSeparate)(struct gl_context *ctx, GLenum modeRGB, GLenum modeA);
 638    void (*BlendEquationSeparatei)(struct gl_context *ctx, GLuint buffer,
 639                                   GLenum modeRGB, GLenum modeA);
 640    /** Specify pixel arithmetic */
 641    void (*BlendFuncSeparate)(struct gl_context *ctx,
 642                              GLenum sfactorRGB, GLenum dfactorRGB,
 643                              GLenum sfactorA, GLenum dfactorA);
 644    void (*BlendFuncSeparatei)(struct gl_context *ctx, GLuint buffer,
 645                               GLenum sfactorRGB, GLenum dfactorRGB,
 646                               GLenum sfactorA, GLenum dfactorA);
 647    /** Specify clear values for the color buffers */
 648    void (*ClearColor)(struct gl_context *ctx, const GLfloat color[4]);
 649    /** Specify the clear value for the depth buffer */
 650    void (*ClearDepth)(struct gl_context *ctx, GLclampd d);
 651    /** Specify the clear value for the stencil buffer */
 652    void (*ClearStencil)(struct gl_context *ctx, GLint s);
 653    /** Specify a plane against which all geometry is clipped */
 654    void (*ClipPlane)(struct gl_context *ctx, GLenum plane, const GLfloat *equation );
 655    /** Enable and disable writing of frame buffer color components */
 656    void (*ColorMask)(struct gl_context *ctx, GLboolean rmask, GLboolean gmask,
 657                      GLboolean bmask, GLboolean amask );
 658    void (*ColorMaskIndexed)(struct gl_context *ctx, GLuint buf, GLboolean rmask,
 659                             GLboolean gmask, GLboolean bmask, GLboolean amask);
 660    /** Cause a material color to track the current color */
 661    void (*ColorMaterial)(struct gl_context *ctx, GLenum face, GLenum mode);
 662    /** Specify whether front- or back-facing facets can be culled */
 663    void (*CullFace)(struct gl_context *ctx, GLenum mode);
 664    /** Define front- and back-facing polygons */
 665    void (*FrontFace)(struct gl_context *ctx, GLenum mode);
 666    /** Specify the value used for depth buffer comparisons */
 667    void (*DepthFunc)(struct gl_context *ctx, GLenum func);
 668    /** Enable or disable writing into the depth buffer */
 669    void (*DepthMask)(struct gl_context *ctx, GLboolean flag);
 670    /** Specify mapping of depth values from NDC to window coordinates */
 671    void (*DepthRange)(struct gl_context *ctx, GLclampd nearval, GLclampd farval);
 672    /** Specify the current buffer for writing */
 673    void (*DrawBuffer)( struct gl_context *ctx, GLenum buffer );
 674    /** Specify the buffers for writing for fragment programs*/
 675    void (*DrawBuffers)( struct gl_context *ctx, GLsizei n, const GLenum *buffers );
 676    /** Enable or disable server-side gl capabilities */
 677    void (*Enable)(struct gl_context *ctx, GLenum cap, GLboolean state);
 678    /** Specify fog parameters */
 679    void (*Fogfv)(struct gl_context *ctx, GLenum pname, const GLfloat *params);
 680    /** Specify implementation-specific hints */
 681    void (*Hint)(struct gl_context *ctx, GLenum target, GLenum mode);
 682    /** Set light source parameters.
 683     * Note: for GL_POSITION and GL_SPOT_DIRECTION, params will have already
 684     * been transformed to eye-space.
 685     */
 686    void (*Lightfv)(struct gl_context *ctx, GLenum light,
 687                    GLenum pname, const GLfloat *params );
 688    /** Set the lighting model parameters */
 689    void (*LightModelfv)(struct gl_context *ctx, GLenum pname, const GLfloat *params);
 690    /** Specify the line stipple pattern */
 691    void (*LineStipple)(struct gl_context *ctx, GLint factor, GLushort pattern );
 692    /** Specify the width of rasterized lines */
 693    void (*LineWidth)(struct gl_context *ctx, GLfloat width);
 694    /** Specify a logical pixel operation for color index rendering */
 695    void (*LogicOpcode)(struct gl_context *ctx, GLenum opcode);
 696    void (*PointParameterfv)(struct gl_context *ctx, GLenum pname,
 697                             const GLfloat *params);
 698    /** Specify the diameter of rasterized points */
 699    void (*PointSize)(struct gl_context *ctx, GLfloat size);
 700    /** Select a polygon rasterization mode */
 701    void (*PolygonMode)(struct gl_context *ctx, GLenum face, GLenum mode);
 702    /** Set the scale and units used to calculate depth values */
 703    void (*PolygonOffset)(struct gl_context *ctx, GLfloat factor, GLfloat units);
 704    /** Set the polygon stippling pattern */
 705    void (*PolygonStipple)(struct gl_context *ctx, const GLubyte *mask );
 706    /* Specifies the current buffer for reading */
 707    void (*ReadBuffer)( struct gl_context *ctx, GLenum buffer );
 708    /** Set rasterization mode */
 709    void (*RenderMode)(struct gl_context *ctx, GLenum mode );
 710    /** Define the scissor box */
 711    void (*Scissor)(struct gl_context *ctx, GLint x, GLint y, GLsizei w, GLsizei h);
 712    /** Select flat or smooth shading */
 713    void (*ShadeModel)(struct gl_context *ctx, GLenum mode);
 714    /** OpenGL 2.0 two-sided StencilFunc */
 715    void (*StencilFuncSeparate)(struct gl_context *ctx, GLenum face, GLenum func,
 716                                GLint ref, GLuint mask);
 717    /** OpenGL 2.0 two-sided StencilMask */
 718    void (*StencilMaskSeparate)(struct gl_context *ctx, GLenum face, GLuint mask);
 719    /** OpenGL 2.0 two-sided StencilOp */
 720    void (*StencilOpSeparate)(struct gl_context *ctx, GLenum face, GLenum fail,
 721                              GLenum zfail, GLenum zpass);
 722    /** Control the generation of texture coordinates */
 723    void (*TexGen)(struct gl_context *ctx, GLenum coord, GLenum pname,
 724                   const GLfloat *params);
 725    /** Set texture environment parameters */
 726    void (*TexEnv)(struct gl_context *ctx, GLenum target, GLenum pname,
 727                   const GLfloat *param);
 728    /** Set texture parameters */
 729    void (*TexParameter)(struct gl_context *ctx, GLenum target,
 730                         struct gl_texture_object *texObj,
 731                         GLenum pname, const GLfloat *params);
 732    /** Set the viewport */
 733    void (*Viewport)(struct gl_context *ctx, GLint x, GLint y, GLsizei w, GLsizei h);
 734    /*@}*/
 735
 736
 737    /**
 738     * \name Vertex/pixel buffer object functions
 739     */
 740    /*@{*/
 741    void (*BindBuffer)( struct gl_context *ctx, GLenum target,
 742                        struct gl_buffer_object *obj );
 743
 744    struct gl_buffer_object * (*NewBufferObject)( struct gl_context *ctx, GLuint buffer,
 745                                                  GLenum target );
 746
 747    void (*DeleteBuffer)( struct gl_context *ctx, struct gl_buffer_object *obj );
 748
 749    GLboolean (*BufferData)( struct gl_context *ctx, GLenum target, GLsizeiptrARB size,
 750                             const GLvoid *data, GLenum usage,
 751                             struct gl_buffer_object *obj );
 752
 753    void (*BufferSubData)( struct gl_context *ctx, GLenum target, GLintptrARB offset,
 754                           GLsizeiptrARB size, const GLvoid *data,
 755                           struct gl_buffer_object *obj );
 756
 757    void (*GetBufferSubData)( struct gl_context *ctx, GLenum target,
 758                              GLintptrARB offset, GLsizeiptrARB size,
 759                              GLvoid *data, struct gl_buffer_object *obj );
 760
 761    void * (*MapBuffer)( struct gl_context *ctx, GLenum target, GLenum access,
 762                         struct gl_buffer_object *obj );
 763
 764    void (*CopyBufferSubData)( struct gl_context *ctx,
 765                               struct gl_buffer_object *src,
 766                               struct gl_buffer_object *dst,
 767                               GLintptr readOffset, GLintptr writeOffset,
 768                               GLsizeiptr size );
 769
 770    /* May return NULL if MESA_MAP_NOWAIT_BIT is set in access:
 771     */
 772    void * (*MapBufferRange)( struct gl_context *ctx, GLenum target, GLintptr offset,
 773                              GLsizeiptr length, GLbitfield access,
 774                              struct gl_buffer_object *obj);
 775
 776    void (*FlushMappedBufferRange)(struct gl_context *ctx, GLenum target,
 777                                   GLintptr offset, GLsizeiptr length,
 778                                   struct gl_buffer_object *obj);
 779
 780    GLboolean (*UnmapBuffer)( struct gl_context *ctx, GLenum target,
 781                              struct gl_buffer_object *obj );
 782    /*@}*/
 783
 784    /**
 785     * \name Functions for GL_APPLE_object_purgeable
 786     */
 787    /*@{*/
 788    /* variations on ObjectPurgeable */
 789    GLenum (*BufferObjectPurgeable)( struct gl_context *ctx, struct gl_buffer_object *obj, GLenum option );
 790    GLenum (*RenderObjectPurgeable)( struct gl_context *ctx, struct gl_renderbuffer *obj, GLenum option );
 791    GLenum (*TextureObjectPurgeable)( struct gl_context *ctx, struct gl_texture_object *obj, GLenum option );
 792
 793    /* variations on ObjectUnpurgeable */
 794    GLenum (*BufferObjectUnpurgeable)( struct gl_context *ctx, struct gl_buffer_object *obj, GLenum option );
 795    GLenum (*RenderObjectUnpurgeable)( struct gl_context *ctx, struct gl_renderbuffer *obj, GLenum option );
 796    GLenum (*TextureObjectUnpurgeable)( struct gl_context *ctx, struct gl_texture_object *obj, GLenum option );
 797    /*@}*/
 798
 799    /**
 800     * \name Functions for GL_EXT_framebuffer_{object,blit}.
 801     */
 802    /*@{*/
 803    struct gl_framebuffer * (*NewFramebuffer)(struct gl_context *ctx, GLuint name);
 804    struct gl_renderbuffer * (*NewRenderbuffer)(struct gl_context *ctx, GLuint name);
 805    void (*BindFramebuffer)(struct gl_context *ctx, GLenum target,
 806                            struct gl_framebuffer *drawFb,
 807                            struct gl_framebuffer *readFb);
 808    void (*FramebufferRenderbuffer)(struct gl_context *ctx,
 809                                    struct gl_framebuffer *fb,
 810                                    GLenum attachment,
 811                                    struct gl_renderbuffer *rb);
 812    void (*RenderTexture)(struct gl_context *ctx,
 813                          struct gl_framebuffer *fb,
 814                          struct gl_renderbuffer_attachment *att);
 815    void (*FinishRenderTexture)(struct gl_context *ctx,
 816                                struct gl_renderbuffer_attachment *att);
 817    void (*ValidateFramebuffer)(struct gl_context *ctx,
 818                                struct gl_framebuffer *fb);
 819    /*@}*/
 820    void (*BlitFramebuffer)(struct gl_context *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
 825    /**
 826     * \name Query objects
 827     */
 828    /*@{*/
 829    struct gl_query_object * (*NewQueryObject)(struct gl_context *ctx, GLuint id);
 830    void (*DeleteQuery)(struct gl_context *ctx, struct gl_query_object *q);
 831    void (*BeginQuery)(struct gl_context *ctx, struct gl_query_object *q);
 832    void (*EndQuery)(struct gl_context *ctx, struct gl_query_object *q);
 833    void (*CheckQuery)(struct gl_context *ctx, struct gl_query_object *q);
 834    void (*WaitQuery)(struct gl_context *ctx, struct gl_query_object *q);
 835    /*@}*/
 836
 837
 838    /**
 839     * \name Vertex Array objects
 840     */
 841    /*@{*/
 842    struct gl_array_object * (*NewArrayObject)(struct gl_context *ctx, GLuint id);
 843    void (*DeleteArrayObject)(struct gl_context *ctx, struct gl_array_object *obj);
 844    void (*BindArrayObject)(struct gl_context *ctx, struct gl_array_object *obj);
 845    /*@}*/
 846
 847    /**
 848     * \name GLSL-related functions (ARB extensions and OpenGL 2.x)
 849     */
 850    /*@{*/
 851    struct gl_shader *(*NewShader)(struct gl_context *ctx, GLuint name, GLenum type);
 852    void (*DeleteShader)(struct gl_context *ctx, struct gl_shader *shader);
 853    struct gl_shader_program *(*NewShaderProgram)(struct gl_context *ctx, GLuint name);
 854    void (*DeleteShaderProgram)(struct gl_context *ctx,
 855                                struct gl_shader_program *shProg);
 856    void (*UseProgram)(struct gl_context *ctx, struct gl_shader_program *shProg);
 857    /*@}*/
 858
 859
 860    /**
 861     * \name Support for multiple T&L engines
 862     */
 863    /*@{*/
 864
 865    /**
 866     * Bitmask of state changes that require the current T&L module to be
 867     * validated, using ValidateTnlModule() below.
 868     */
 869    GLuint NeedValidate;
 870
 871    /**
 872     * Validate the current T&L module.
 873     *
 874     * This is called directly after UpdateState() when a state change that has
 875     * occurred matches the dd_function_table::NeedValidate bitmask above.  This
 876     * ensures all computed values are up to date, thus allowing the driver to
 877     * decide if the current T&L module needs to be swapped out.
 878     *
 879     * This must be non-NULL if a driver installs a custom T&L module and sets
 880     * the dd_function_table::NeedValidate bitmask, but may be NULL otherwise.
 881     */
 882    void (*ValidateTnlModule)( struct gl_context *ctx, GLuint new_state );
 883
 884
 885 #define PRIM_OUTSIDE_BEGIN_END   (GL_POLYGON+1)
 886 #define PRIM_INSIDE_UNKNOWN_PRIM (GL_POLYGON+2)
 887 #define PRIM_UNKNOWN             (GL_POLYGON+3)
 888
 889    /**
 890     * Set by the driver-supplied T&L engine.
 891     *
 892     * Set to PRIM_OUTSIDE_BEGIN_END when outside glBegin()/glEnd().
 893     */
 894    GLuint CurrentExecPrimitive;
 895
 896    /**
 897     * Current state of an in-progress compilation.
 898     *
 899     * May take on any of the additional values PRIM_OUTSIDE_BEGIN_END,
 900     * PRIM_INSIDE_UNKNOWN_PRIM or PRIM_UNKNOWN defined above.
 901     */
 902    GLuint CurrentSavePrimitive;
 903
 904
 905 #define FLUSH_STORED_VERTICES 0x1
 906 #define FLUSH_UPDATE_CURRENT  0x2
 907    /**
 908     * Set by the driver-supplied T&L engine whenever vertices are buffered
 909     * between glBegin()/glEnd() objects or __struct gl_contextRec::Current is not
 910     * updated.
 911     *
 912     * The dd_function_table::FlushVertices call below may be used to resolve
 913     * these conditions.
 914     */
 915    GLuint NeedFlush;
 916    GLuint SaveNeedFlush;
 917
 918
 919    /* Called prior to any of the GLvertexformat functions being
 920     * called.  Paired with Driver.FlushVertices().
 921     */
 922    void (*BeginVertices)( struct gl_context *ctx );
 923
 924    /**
 925     * If inside glBegin()/glEnd(), it should ASSERT(0).  Otherwise, if
 926     * FLUSH_STORED_VERTICES bit in \p flags is set flushes any buffered
 927     * vertices, if FLUSH_UPDATE_CURRENT bit is set updates
 928     * __struct gl_contextRec::Current and gl_light_attrib::Material
 929     *
 930     * Note that the default T&L engine never clears the
 931     * FLUSH_UPDATE_CURRENT bit, even after performing the update.
 932     */
 933    void (*FlushVertices)( struct gl_context *ctx, GLuint flags );
 934    void (*SaveFlushVertices)( struct gl_context *ctx );
 935
 936    /**
 937     * Give the driver the opportunity to hook in its own vtxfmt for
 938     * compiling optimized display lists.  This is called on each valid
 939     * glBegin() during list compilation.
 940     */
 941    GLboolean (*NotifySaveBegin)( struct gl_context *ctx, GLenum mode );
 942
 943    /**
 944     * Notify driver that the special derived value _NeedEyeCoords has
 945     * changed.
 946     */
 947    void (*LightingSpaceChange)( struct gl_context *ctx );
 948
 949    /**
 950     * Called by glNewList().
 951     *
 952     * Let the T&L component know what is going on with display lists
 953     * in time to make changes to dispatch tables, etc.
 954     */
 955    void (*NewList)( struct gl_context *ctx, GLuint list, GLenum mode );
 956    /**
 957     * Called by glEndList().
 958     *
 959     * \sa dd_function_table::NewList.
 960     */
 961    void (*EndList)( struct gl_context *ctx );
 962
 963    /**
 964     * Called by glCallList(s).
 965     *
 966     * Notify the T&L component before and after calling a display list.
 967     */
 968    void (*BeginCallList)( struct gl_context *ctx,
 969                           struct gl_display_list *dlist );
 970    /**
 971     * Called by glEndCallList().
 972     *
 973     * \sa dd_function_table::BeginCallList.
 974     */
 975    void (*EndCallList)( struct gl_context *ctx );
 976
 977
 978    /**
 979     * \name GL_ARB_sync interfaces
 980     */
 981    /*@{*/
 982    struct gl_sync_object * (*NewSyncObject)(struct gl_context *, GLenum);
 983    void (*FenceSync)(struct gl_context *, struct gl_sync_object *, GLenum, GLbitfield);
 984    void (*DeleteSyncObject)(struct gl_context *, struct gl_sync_object *);
 985    void (*CheckSync)(struct gl_context *, struct gl_sync_object *);
 986    void (*ClientWaitSync)(struct gl_context *, struct gl_sync_object *,
 987                           GLbitfield, GLuint64);
 988    void (*ServerWaitSync)(struct gl_context *, struct gl_sync_object *,
 989                           GLbitfield, GLuint64);
 990    /*@}*/
 991
 992    /** GL_NV_conditional_render */
 993    void (*BeginConditionalRender)(struct gl_context *ctx, struct gl_query_object *q,
 994                                   GLenum mode);
 995    void (*EndConditionalRender)(struct gl_context *ctx, struct gl_query_object *q);
 996
 997    /**
 998     * \name GL_OES_draw_texture interface
 999     */
1000    /*@{*/
1001    void (*DrawTex)(struct gl_context *ctx, GLfloat x, GLfloat y, GLfloat z,
1002                    GLfloat width, GLfloat height);
1003    /*@}*/
1004
1005    /**
1006     * \name GL_OES_EGL_image interface
1007     */
1008    void (*EGLImageTargetTexture2D)(struct gl_context *ctx, GLenum target,
1009                                    struct gl_texture_object *texObj,
1010                                    struct gl_texture_image *texImage,
1011                                    GLeglImageOES image_handle);
1012    void (*EGLImageTargetRenderbufferStorage)(struct gl_context *ctx,
1013                                              struct gl_renderbuffer *rb,
1014                                              void *image_handle);
1015
1016    /**
1017     * \name GL_EXT_transform_feedback interface
1018     */
1019    struct gl_transform_feedback_object *
1020         (*NewTransformFeedback)(struct gl_context *ctx, GLuint name);
1021    void (*DeleteTransformFeedback)(struct gl_context *ctx,
1022                                    struct gl_transform_feedback_object *obj);
1023    void (*BeginTransformFeedback)(struct gl_context *ctx, GLenum mode,
1024                                   struct gl_transform_feedback_object *obj);
1025    void (*EndTransformFeedback)(struct gl_context *ctx,
1026                                 struct gl_transform_feedback_object *obj);
1027    void (*PauseTransformFeedback)(struct gl_context *ctx,
1028                                   struct gl_transform_feedback_object *obj);
1029    void (*ResumeTransformFeedback)(struct gl_context *ctx,
1030                                    struct gl_transform_feedback_object *obj);
1031    void (*DrawTransformFeedback)(struct gl_context *ctx, GLenum mode,
1032                                  struct gl_transform_feedback_object *obj);
1033 };
1034
1035
1036 /**
1037  * Transform/Clip/Lighting interface
1038  *
1039  * Drivers present a reduced set of the functions possible in
1040  * glBegin()/glEnd() objects.  Core mesa provides translation stubs for the
1041  * remaining functions to map down to these entry points.
1042  *
1043  * These are the initial values to be installed into dispatch by
1044  * mesa.  If the T&L driver wants to modify the dispatch table
1045  * while installed, it must do so itself.  It would be possible for
1046  * the vertexformat to install its own initial values for these
1047  * functions, but this way there is an obvious list of what is
1048  * expected of the driver.
1049  *
1050  * If the driver wants to hook in entry points other than those
1051  * listed, it must restore them to their original values in
1052  * the disable() callback, below.
1053  */
1054 typedef struct {
1055    /**
1056     * \name Vertex
1057     */
1058    /*@{*/
1059    void (GLAPIENTRYP ArrayElement)( GLint );
1060    void (GLAPIENTRYP Color3f)( GLfloat, GLfloat, GLfloat );
1061    void (GLAPIENTRYP Color3fv)( const GLfloat * );
1062    void (GLAPIENTRYP Color4f)( GLfloat, GLfloat, GLfloat, GLfloat );
1063    void (GLAPIENTRYP Color4fv)( const GLfloat * );
1064    void (GLAPIENTRYP EdgeFlag)( GLboolean );
1065    void (GLAPIENTRYP EvalCoord1f)( GLfloat );
1066    void (GLAPIENTRYP EvalCoord1fv)( const GLfloat * );
1067    void (GLAPIENTRYP EvalCoord2f)( GLfloat, GLfloat );
1068    void (GLAPIENTRYP EvalCoord2fv)( const GLfloat * );
1069    void (GLAPIENTRYP EvalPoint1)( GLint );
1070    void (GLAPIENTRYP EvalPoint2)( GLint, GLint );
1071    void (GLAPIENTRYP FogCoordfEXT)( GLfloat );
1072    void (GLAPIENTRYP FogCoordfvEXT)( const GLfloat * );
1073    void (GLAPIENTRYP Indexf)( GLfloat );
1074    void (GLAPIENTRYP Indexfv)( const GLfloat * );
1075    void (GLAPIENTRYP Materialfv)( GLenum face, GLenum pname, const GLfloat * );
1076    void (GLAPIENTRYP MultiTexCoord1fARB)( GLenum, GLfloat );
1077    void (GLAPIENTRYP MultiTexCoord1fvARB)( GLenum, const GLfloat * );
1078    void (GLAPIENTRYP MultiTexCoord2fARB)( GLenum, GLfloat, GLfloat );
1079    void (GLAPIENTRYP MultiTexCoord2fvARB)( GLenum, const GLfloat * );
1080    void (GLAPIENTRYP MultiTexCoord3fARB)( GLenum, GLfloat, GLfloat, GLfloat );
1081    void (GLAPIENTRYP MultiTexCoord3fvARB)( GLenum, const GLfloat * );
1082    void (GLAPIENTRYP MultiTexCoord4fARB)( GLenum, GLfloat, GLfloat, GLfloat, GLfloat );
1083    void (GLAPIENTRYP MultiTexCoord4fvARB)( GLenum, const GLfloat * );
1084    void (GLAPIENTRYP Normal3f)( GLfloat, GLfloat, GLfloat );
1085    void (GLAPIENTRYP Normal3fv)( const GLfloat * );
1086    void (GLAPIENTRYP SecondaryColor3fEXT)( GLfloat, GLfloat, GLfloat );
1087    void (GLAPIENTRYP SecondaryColor3fvEXT)( const GLfloat * );
1088    void (GLAPIENTRYP TexCoord1f)( GLfloat );
1089    void (GLAPIENTRYP TexCoord1fv)( const GLfloat * );
1090    void (GLAPIENTRYP TexCoord2f)( GLfloat, GLfloat );
1091    void (GLAPIENTRYP TexCoord2fv)( const GLfloat * );
1092    void (GLAPIENTRYP TexCoord3f)( GLfloat, GLfloat, GLfloat );
1093    void (GLAPIENTRYP TexCoord3fv)( const GLfloat * );
1094    void (GLAPIENTRYP TexCoord4f)( GLfloat, GLfloat, GLfloat, GLfloat );
1095    void (GLAPIENTRYP TexCoord4fv)( const GLfloat * );
1096    void (GLAPIENTRYP Vertex2f)( GLfloat, GLfloat );
1097    void (GLAPIENTRYP Vertex2fv)( const GLfloat * );
1098    void (GLAPIENTRYP Vertex3f)( GLfloat, GLfloat, GLfloat );
1099    void (GLAPIENTRYP Vertex3fv)( const GLfloat * );
1100    void (GLAPIENTRYP Vertex4f)( GLfloat, GLfloat, GLfloat, GLfloat );
1101    void (GLAPIENTRYP Vertex4fv)( const GLfloat * );
1102    void (GLAPIENTRYP CallList)( GLuint );
1103    void (GLAPIENTRYP CallLists)( GLsizei, GLenum, const GLvoid * );
1104    void (GLAPIENTRYP Begin)( GLenum );
1105    void (GLAPIENTRYP End)( void );
1106    void (GLAPIENTRYP PrimitiveRestartNV)( void );
1107    /* GL_NV_vertex_program */
1108    void (GLAPIENTRYP VertexAttrib1fNV)( GLuint index, GLfloat x );
1109    void (GLAPIENTRYP VertexAttrib1fvNV)( GLuint index, const GLfloat *v );
1110    void (GLAPIENTRYP VertexAttrib2fNV)( GLuint index, GLfloat x, GLfloat y );
1111    void (GLAPIENTRYP VertexAttrib2fvNV)( GLuint index, const GLfloat *v );
1112    void (GLAPIENTRYP VertexAttrib3fNV)( GLuint index, GLfloat x, GLfloat y, GLfloat z );
1113    void (GLAPIENTRYP VertexAttrib3fvNV)( GLuint index, const GLfloat *v );
1114    void (GLAPIENTRYP VertexAttrib4fNV)( GLuint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w );
1115    void (GLAPIENTRYP VertexAttrib4fvNV)( GLuint index, const GLfloat *v );
1116    /* GL_ARB_vertex_program */
1117    void (GLAPIENTRYP VertexAttrib1fARB)( GLuint index, GLfloat x );
1118    void (GLAPIENTRYP VertexAttrib1fvARB)( GLuint index, const GLfloat *v );
1119    void (GLAPIENTRYP VertexAttrib2fARB)( GLuint index, GLfloat x, GLfloat y );
1120    void (GLAPIENTRYP VertexAttrib2fvARB)( GLuint index, const GLfloat *v );
1121    void (GLAPIENTRYP VertexAttrib3fARB)( GLuint index, GLfloat x, GLfloat y, GLfloat z );
1122    void (GLAPIENTRYP VertexAttrib3fvARB)( GLuint index, const GLfloat *v );
1123    void (GLAPIENTRYP VertexAttrib4fARB)( GLuint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w );
1124    void (GLAPIENTRYP VertexAttrib4fvARB)( GLuint index, const GLfloat *v );
1125
1126    /* GL_EXT_gpu_shader4 / GL 3.0 */
1127    void (GLAPIENTRYP VertexAttribI1i)( GLuint index, GLint x);
1128    void (GLAPIENTRYP VertexAttribI2i)( GLuint index, GLint x, GLint y);
1129    void (GLAPIENTRYP VertexAttribI3i)( GLuint index, GLint x, GLint y, GLint z);
1130    void (GLAPIENTRYP VertexAttribI4i)( GLuint index, GLint x, GLint y, GLint z, GLint w);
1131    void (GLAPIENTRYP VertexAttribI2iv)( GLuint index, const GLint *v);
1132    void (GLAPIENTRYP VertexAttribI3iv)( GLuint index, const GLint *v);
1133    void (GLAPIENTRYP VertexAttribI4iv)( GLuint index, const GLint *v);
1134
1135    void (GLAPIENTRYP VertexAttribI1ui)( GLuint index, GLuint x);
1136    void (GLAPIENTRYP VertexAttribI2ui)( GLuint index, GLuint x, GLuint y);
1137    void (GLAPIENTRYP VertexAttribI3ui)( GLuint index, GLuint x, GLuint y, GLuint z);
1138    void (GLAPIENTRYP VertexAttribI4ui)( GLuint index, GLuint x, GLuint y, GLuint z, GLuint w);
1139    void (GLAPIENTRYP VertexAttribI2uiv)( GLuint index, const GLuint *v);
1140    void (GLAPIENTRYP VertexAttribI3uiv)( GLuint index, const GLuint *v);
1141    void (GLAPIENTRYP VertexAttribI4uiv)( GLuint index, const GLuint *v);
1142
1143    /*@}*/
1144
1145    void (GLAPIENTRYP Rectf)( GLfloat, GLfloat, GLfloat, GLfloat );
1146
1147    /**
1148     * \name Array
1149     */
1150    /*@{*/
1151    void (GLAPIENTRYP DrawArrays)( GLenum mode, GLint start, GLsizei count );
1152    void (GLAPIENTRYP DrawElements)( GLenum mode, GLsizei count, GLenum type,
1153                          const GLvoid *indices );
1154    void (GLAPIENTRYP DrawRangeElements)( GLenum mode, GLuint start,
1155                               GLuint end, GLsizei count,
1156                               GLenum type, const GLvoid *indices );
1157    void (GLAPIENTRYP MultiDrawElementsEXT)( GLenum mode, const GLsizei *count,
1158                                             GLenum type,
1159                                             const GLvoid **indices,
1160                                             GLsizei primcount);
1161    void (GLAPIENTRYP DrawElementsBaseVertex)( GLenum mode, GLsizei count,
1162                                               GLenum type,
1163                                               const GLvoid *indices,
1164                                               GLint basevertex );
1165    void (GLAPIENTRYP DrawRangeElementsBaseVertex)( GLenum mode, GLuint start,
1166                                                    GLuint end, GLsizei count,
1167                                                    GLenum type,
1168                                                    const GLvoid *indices,
1169                                                    GLint basevertex);
1170    void (GLAPIENTRYP MultiDrawElementsBaseVertex)( GLenum mode,
1171                                                    const GLsizei *count,
1172                                                    GLenum type,
1173                                                    const GLvoid **indices,
1174                                                    GLsizei primcount,
1175                                                    const GLint *basevertex);
1176    void (GLAPIENTRYP DrawArraysInstanced)(GLenum mode, GLint first,
1177                                           GLsizei count, GLsizei primcount);
1178    void (GLAPIENTRYP DrawElementsInstanced)(GLenum mode, GLsizei count,
1179                                             GLenum type, const GLvoid *indices,
1180                                             GLsizei primcount);
1181    /*@}*/
1182
1183    /**
1184     * \name Eval
1185     *
1186     * If you don't support eval, fallback to the default vertex format
1187     * on receiving an eval call and use the pipeline mechanism to
1188     * provide partial T&L acceleration.
1189     *
1190     * Mesa will provide a set of helper functions to do eval within
1191     * accelerated vertex formats, eventually...
1192     */
1193    /*@{*/
1194    void (GLAPIENTRYP EvalMesh1)( GLenum mode, GLint i1, GLint i2 );
1195    void (GLAPIENTRYP EvalMesh2)( GLenum mode, GLint i1, GLint i2, GLint j1, GLint j2 );
1196    /*@}*/
1197
1198 } GLvertexformat;
1199
1200
1201 #endif /* DD_INCLUDED */