src/mesa/main/dd.h

   1 /**
   2  * \file dd.h
   3  * Device driver interfaces.
   4  */
   5
   6 /*
   7  * Mesa 3-D graphics library
   8  * Version:  6.5.2
   9  *
  10  * Copyright (C) 1999-2006  Brian Paul   All Rights Reserved.
  11  *
  12  * Permission is hereby granted, free of charge, to any person obtaining a
  13  * copy of this software and associated documentation files (the "Software"),
  14  * to deal in the Software without restriction, including without limitation
  15  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  16  * and/or sell copies of the Software, and to permit persons to whom the
  17  * Software is furnished to do so, subject to the following conditions:
  18  *
  19  * The above copyright notice and this permission notice shall be included
  20  * in all copies or substantial portions of the Software.
  21  *
  22  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  23  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  24  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  25  * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  26  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  27  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  28  */
  29
  30
  31 #ifndef DD_INCLUDED
  32 #define DD_INCLUDED
  33
  34 /* THIS FILE ONLY INCLUDED BY mtypes.h !!!!! */
  35
  36 #include "glheader.h"
  37
  38 struct gl_buffer_object;
  39 struct gl_context;
  40 struct gl_display_list;
  41 struct gl_framebuffer;
  42 struct gl_pixelstore_attrib;
  43 struct gl_program;
  44 struct gl_renderbuffer;
  45 struct gl_renderbuffer_attachment;
  46 struct gl_shader;
  47 struct gl_shader_program;
  48 struct gl_texture_image;
  49 struct gl_texture_object;
  50
  51 /* GL_ARB_vertex_buffer_object */
  52 /* Modifies GL_MAP_UNSYNCHRONIZED_BIT to allow driver to fail (return
  53  * NULL) if buffer is unavailable for immediate mapping.
  54  *
  55  * Does GL_MAP_INVALIDATE_RANGE_BIT do this?  It seems so, but it
  56  * would require more book-keeping in the driver than seems necessary
  57  * at this point.
  58  *
  59  * Does GL_MAP_INVALDIATE_BUFFER_BIT do this?  Not really -- we don't
  60  * want to provoke the driver to throw away the old storage, we will
  61  * respect the contents of already referenced data.
  62  */
  63 #define MESA_MAP_NOWAIT_BIT       0x0040
  64
  65
  66 /**
  67  * Device driver function table.
  68  * Core Mesa uses these function pointers to call into device drivers.
  69  * Most of these functions directly correspond to OpenGL state commands.
  70  * Core Mesa will call these functions after error checking has been done
  71  * so that the drivers don't have to worry about error testing.
  72  *
  73  * Vertex transformation/clipping/lighting is patched into the T&L module.
  74  * Rasterization functions are patched into the swrast module.
  75  *
  76  * Note: when new functions are added here, the drivers/common/driverfuncs.c
  77  * file should be updated too!!!
  78  */
  79 struct dd_function_table {
  80    /**
  81     * Return a string as needed by glGetString().
  82     * Only the GL_RENDERER query must be implemented.  Otherwise, NULL can be
  83     * returned.
  84     */
  85    const GLubyte * (*GetString)( struct gl_context *ctx, GLenum name );
  86
  87    /**
  88     * Notify the driver after Mesa has made some internal state changes.
  89     *
  90     * This is in addition to any state change callbacks Mesa may already have
  91     * made.
  92     */
  93    void (*UpdateState)( struct gl_context *ctx, GLbitfield new_state );
  94
  95    /**
  96     * Get the width and height of the named buffer/window.
  97     *
  98     * Mesa uses this to determine when the driver's window size has changed.
  99     * XXX OBSOLETE: this function will be removed in the future.
 100     */
 101    void (*GetBufferSize)( struct gl_framebuffer *buffer,
 102                           GLuint *width, GLuint *height );
 103
 104    /**
 105     * Resize the given framebuffer to the given size.
 106     * XXX OBSOLETE: this function will be removed in the future.
 107     */
 108    void (*ResizeBuffers)( struct gl_context *ctx, struct gl_framebuffer *fb,
 109                           GLuint width, GLuint height);
 110
 111    /**
 112     * Called whenever an error is generated.
 113     * __struct gl_contextRec::ErrorValue contains the error value.
 114     */
 115    void (*Error)( struct gl_context *ctx );
 116
 117    /**
 118     * This is called whenever glFinish() is called.
 119     */
 120    void (*Finish)( struct gl_context *ctx );
 121
 122    /**
 123     * This is called whenever glFlush() is called.
 124     */
 125    void (*Flush)( struct gl_context *ctx );
 126
 127    /**
 128     * Clear the color/depth/stencil/accum buffer(s).
 129     * \param buffers  a bitmask of BUFFER_BIT_* flags indicating which
 130     *                 renderbuffers need to be cleared.
 131     */
 132    void (*Clear)( struct gl_context *ctx, GLbitfield buffers );
 133
 134    /**
 135     * Execute glAccum command.
 136     */
 137    void (*Accum)( struct gl_context *ctx, GLenum op, GLfloat value );
 138
 139
 140    /**
 141     * Execute glRasterPos, updating the ctx->Current.Raster fields
 142     */
 143    void (*RasterPos)( struct gl_context *ctx, const GLfloat v[4] );
 144
 145    /**
 146     * \name Image-related functions
 147     */
 148    /*@{*/
 149
 150    /**
 151     * Called by glDrawPixels().
 152     * \p unpack describes how to unpack the source image data.
 153     */
 154    void (*DrawPixels)( struct gl_context *ctx,
 155                        GLint x, GLint y, GLsizei width, GLsizei height,
 156                        GLenum format, GLenum type,
 157                        const struct gl_pixelstore_attrib *unpack,
 158                        const GLvoid *pixels );
 159
 160    /**
 161     * Called by glReadPixels().
 162     */
 163    void (*ReadPixels)( struct gl_context *ctx,
 164                        GLint x, GLint y, GLsizei width, GLsizei height,
 165                        GLenum format, GLenum type,
 166                        const struct gl_pixelstore_attrib *unpack,
 167                        GLvoid *dest );
 168
 169    /**
 170     * Called by glCopyPixels().
 171     */
 172    void (*CopyPixels)( struct gl_context *ctx, GLint srcx, GLint srcy,
 173                        GLsizei width, GLsizei height,
 174                        GLint dstx, GLint dsty, GLenum type );
 175
 176    /**
 177     * Called by glBitmap().
 178     */
 179    void (*Bitmap)( struct gl_context *ctx,
 180                    GLint x, GLint y, GLsizei width, GLsizei height,
 181                    const struct gl_pixelstore_attrib *unpack,
 182                    const GLubyte *bitmap );
 183    /*@}*/
 184
 185
 186    /**
 187     * \name Texture image functions
 188     */
 189    /*@{*/
 190
 191    /**
 192     * Choose actual hardware texture format given the user-provided source
 193     * image format and type and the desired internal format.  In some
 194     * cases, srcFormat and srcType can be GL_NONE.
 195     * Called by glTexImage(), etc.
 196     */
 197    GLuint (*ChooseTextureFormat)( struct gl_context *ctx, GLint internalFormat,
 198                                      GLenum srcFormat, GLenum srcType );
 199
 200    /**
 201     * Called by glTexImage1D().  Simply copy the source texture data into the
 202     * destination texture memory.  The gl_texture_image fields, etc. will be
 203     * fully initialized.
 204     * The parameters are the same as glTexImage1D(), plus:
 205     * \param packing describes how to unpack the source data.
 206     * \param texObj is the target texture object.
 207     * \param texImage is the target texture image.
 208     */
 209    void (*TexImage1D)( struct gl_context *ctx, GLenum target, GLint level,
 210                        GLint internalFormat,
 211                        GLint width, GLint border,
 212                        GLenum format, GLenum type, const GLvoid *pixels,
 213                        const struct gl_pixelstore_attrib *packing,
 214                        struct gl_texture_object *texObj,
 215                        struct gl_texture_image *texImage );
 216
 217    /**
 218     * Called by glTexImage2D().
 219     *
 220     * \sa dd_function_table::TexImage1D.
 221     */
 222    void (*TexImage2D)( struct gl_context *ctx, GLenum target, GLint level,
 223                        GLint internalFormat,
 224                        GLint width, GLint height, GLint border,
 225                        GLenum format, GLenum type, const GLvoid *pixels,
 226                        const struct gl_pixelstore_attrib *packing,
 227                        struct gl_texture_object *texObj,
 228                        struct gl_texture_image *texImage );
 229
 230    /**
 231     * Called by glTexImage3D().
 232     *
 233     * \sa dd_function_table::TexImage1D.
 234     */
 235    void (*TexImage3D)( struct gl_context *ctx, GLenum target, GLint level,
 236                        GLint internalFormat,
 237                        GLint width, GLint height, GLint depth, GLint border,
 238                        GLenum format, GLenum type, const GLvoid *pixels,
 239                        const struct gl_pixelstore_attrib *packing,
 240                        struct gl_texture_object *texObj,
 241                        struct gl_texture_image *texImage );
 242
 243    /**
 244     * Called by glTexSubImage1D().  Replace a subset of the target texture
 245     * with new texel data.
 246     * \sa dd_function_table::TexImage1D.
 247     */
 248    void (*TexSubImage1D)( struct gl_context *ctx, GLenum target, GLint level,
 249                           GLint xoffset, GLsizei width,
 250                           GLenum format, GLenum type,
 251                           const GLvoid *pixels,
 252                           const struct gl_pixelstore_attrib *packing,
 253                           struct gl_texture_object *texObj,
 254                           struct gl_texture_image *texImage );
 255
 256    /**
 257     * Called by glTexSubImage2D().
 258     *
 259     * \sa dd_function_table::TexSubImage1D.
 260     */
 261    void (*TexSubImage2D)( struct gl_context *ctx, GLenum target, GLint level,
 262                           GLint xoffset, GLint yoffset,
 263                           GLsizei width, GLsizei height,
 264                           GLenum format, GLenum type,
 265                           const GLvoid *pixels,
 266                           const struct gl_pixelstore_attrib *packing,
 267                           struct gl_texture_object *texObj,
 268                           struct gl_texture_image *texImage );
 269
 270    /**
 271     * Called by glTexSubImage3D().
 272     *
 273     * \sa dd_function_table::TexSubImage1D.
 274     */
 275    void (*TexSubImage3D)( struct gl_context *ctx, GLenum target, GLint level,
 276                           GLint xoffset, GLint yoffset, GLint zoffset,
 277                           GLsizei width, GLsizei height, GLint depth,
 278                           GLenum format, GLenum type,
 279                           const GLvoid *pixels,
 280                           const struct gl_pixelstore_attrib *packing,
 281                           struct gl_texture_object *texObj,
 282                           struct gl_texture_image *texImage );
 283
 284    /**
 285     * Called by glGetTexImage().
 286     */
 287    void (*GetTexImage)( struct gl_context *ctx, GLenum target, GLint level,
 288                         GLenum format, GLenum type, GLvoid *pixels,
 289                         struct gl_texture_object *texObj,
 290                         struct gl_texture_image *texImage );
 291
 292    /**
 293     * Called by glCopyTexImage1D().
 294     *
 295     * Drivers should use a fallback routine from texstore.c if needed.
 296     */
 297    void (*CopyTexImage1D)( struct gl_context *ctx, GLenum target, GLint level,
 298                            GLenum internalFormat, GLint x, GLint y,
 299                            GLsizei width, GLint border );
 300
 301    /**
 302     * Called by glCopyTexImage2D().
 303     *
 304     * Drivers should use a fallback routine from texstore.c if needed.
 305     */
 306    void (*CopyTexImage2D)( struct gl_context *ctx, GLenum target, GLint level,
 307                            GLenum internalFormat, GLint x, GLint y,
 308                            GLsizei width, GLsizei height, GLint border );
 309
 310    /**
 311     * Called by glCopyTexSubImage1D().
 312     *
 313     * Drivers should use a fallback routine from texstore.c if needed.
 314     */
 315    void (*CopyTexSubImage1D)( struct gl_context *ctx, GLenum target, GLint level,
 316                               GLint xoffset,
 317                               GLint x, GLint y, GLsizei width );
 318    /**
 319     * Called by glCopyTexSubImage2D().
 320     *
 321     * Drivers should use a fallback routine from texstore.c if needed.
 322     */
 323    void (*CopyTexSubImage2D)( struct gl_context *ctx, GLenum target, GLint level,
 324                               GLint xoffset, GLint yoffset,
 325                               GLint x, GLint y,
 326                               GLsizei width, GLsizei height );
 327    /**
 328     * Called by glCopyTexSubImage3D().
 329     *
 330     * Drivers should use a fallback routine from texstore.c if needed.
 331     */
 332    void (*CopyTexSubImage3D)( struct gl_context *ctx, GLenum target, GLint level,
 333                               GLint xoffset, GLint yoffset, GLint zoffset,
 334                               GLint x, GLint y,
 335                               GLsizei width, GLsizei height );
 336
 337    /**
 338     * Called by glGenerateMipmap() or when GL_GENERATE_MIPMAP_SGIS is enabled.
 339     */
 340    void (*GenerateMipmap)(struct gl_context *ctx, GLenum target,
 341                           struct gl_texture_object *texObj);
 342
 343    /**
 344     * Called by glTexImage[123]D when user specifies a proxy texture
 345     * target.
 346     *
 347     * \return GL_TRUE if the proxy test passes, or GL_FALSE if the test fails.
 348     */
 349    GLboolean (*TestProxyTexImage)(struct gl_context *ctx, GLenum target,
 350                                   GLint level, GLint internalFormat,
 351                                   GLenum format, GLenum type,
 352                                   GLint width, GLint height,
 353                                   GLint depth, GLint border);
 354    /*@}*/
 355
 356
 357    /**
 358     * \name Compressed texture functions
 359     */
 360    /*@{*/
 361
 362    /**
 363     * Called by glCompressedTexImage1D().
 364     *
 365     * \param target user specified.
 366     * \param format user specified.
 367     * \param type user specified.
 368     * \param pixels user specified.
 369     * \param packing indicates the image packing of pixels.
 370     * \param texObj is the target texture object.
 371     * \param texImage is the target texture image.  It will have the texture \p
 372     * width, \p height, \p depth, \p border and \p internalFormat information.
 373     *
 374     * \a retainInternalCopy is returned by this function and indicates whether
 375     * core Mesa should keep an internal copy of the texture image.
 376     */
 377    void (*CompressedTexImage1D)( struct gl_context *ctx, GLenum target,
 378                                  GLint level, GLint internalFormat,
 379                                  GLsizei width, GLint border,
 380                                  GLsizei imageSize, const GLvoid *data,
 381                                  struct gl_texture_object *texObj,
 382                                  struct gl_texture_image *texImage );
 383    /**
 384     * Called by glCompressedTexImage2D().
 385     *
 386     * \sa dd_function_table::CompressedTexImage1D.
 387     */
 388    void (*CompressedTexImage2D)( struct gl_context *ctx, GLenum target,
 389                                  GLint level, GLint internalFormat,
 390                                  GLsizei width, GLsizei height, GLint border,
 391                                  GLsizei imageSize, const GLvoid *data,
 392                                  struct gl_texture_object *texObj,
 393                                  struct gl_texture_image *texImage );
 394    /**
 395     * Called by glCompressedTexImage3D().
 396     *
 397     * \sa dd_function_table::CompressedTexImage3D.
 398     */
 399    void (*CompressedTexImage3D)( struct gl_context *ctx, GLenum target,
 400                                  GLint level, GLint internalFormat,
 401                                  GLsizei width, GLsizei height, GLsizei depth,
 402                                  GLint border,
 403                                  GLsizei imageSize, const GLvoid *data,
 404                                  struct gl_texture_object *texObj,
 405                                  struct gl_texture_image *texImage );
 406
 407    /**
 408     * Called by glCompressedTexSubImage1D().
 409     *
 410     * \param target user specified.
 411     * \param level user specified.
 412     * \param xoffset user specified.
 413     * \param yoffset user specified.
 414     * \param zoffset user specified.
 415     * \param width user specified.
 416     * \param height user specified.
 417     * \param depth user specified.
 418     * \param imageSize user specified.
 419     * \param data user specified.
 420     * \param texObj is the target texture object.
 421     * \param texImage is the target texture image.  It will have the texture \p
 422     * width, \p height, \p depth, \p border and \p internalFormat information.
 423     */
 424    void (*CompressedTexSubImage1D)(struct gl_context *ctx, GLenum target, GLint level,
 425                                    GLint xoffset, GLsizei width,
 426                                    GLenum format,
 427                                    GLsizei imageSize, const GLvoid *data,
 428                                    struct gl_texture_object *texObj,
 429                                    struct gl_texture_image *texImage);
 430    /**
 431     * Called by glCompressedTexSubImage2D().
 432     *
 433     * \sa dd_function_table::CompressedTexImage3D.
 434     */
 435    void (*CompressedTexSubImage2D)(struct gl_context *ctx, GLenum target, GLint level,
 436                                    GLint xoffset, GLint yoffset,
 437                                    GLsizei width, GLint height,
 438                                    GLenum format,
 439                                    GLsizei imageSize, const GLvoid *data,
 440                                    struct gl_texture_object *texObj,
 441                                    struct gl_texture_image *texImage);
 442    /**
 443     * Called by glCompressedTexSubImage3D().
 444     *
 445     * \sa dd_function_table::CompressedTexImage3D.
 446     */
 447    void (*CompressedTexSubImage3D)(struct gl_context *ctx, GLenum target, GLint level,
 448                                    GLint xoffset, GLint yoffset, GLint zoffset,
 449                                    GLsizei width, GLint height, GLint depth,
 450                                    GLenum format,
 451                                    GLsizei imageSize, const GLvoid *data,
 452                                    struct gl_texture_object *texObj,
 453                                    struct gl_texture_image *texImage);
 454
 455
 456    /**
 457     * Called by glGetCompressedTexImage.
 458     */
 459    void (*GetCompressedTexImage)(struct gl_context *ctx, GLenum target, GLint level,
 460                                  GLvoid *img,
 461                                  struct gl_texture_object *texObj,
 462                                  struct gl_texture_image *texImage);
 463
 464    /*@}*/
 465
 466    /**
 467     * \name Texture object functions
 468     */
 469    /*@{*/
 470
 471    /**
 472     * Called by glBindTexture().
 473     */
 474    void (*BindTexture)( struct gl_context *ctx, GLenum target,
 475                         struct gl_texture_object *tObj );
 476
 477    /**
 478     * Called to allocate a new texture object.
 479     * A new gl_texture_object should be returned.  The driver should
 480     * attach to it any device-specific info it needs.
 481     */
 482    struct gl_texture_object * (*NewTextureObject)( struct gl_context *ctx, GLuint name,
 483                                                    GLenum target );
 484    /**
 485     * Called when a texture object is about to be deallocated.
 486     *
 487     * Driver should delete the gl_texture_object object and anything
 488     * hanging off of it.
 489     */
 490    void (*DeleteTexture)( struct gl_context *ctx, struct gl_texture_object *tObj );
 491
 492    /**
 493     * Called to allocate a new texture image object.
 494     */
 495    struct gl_texture_image * (*NewTextureImage)( struct gl_context *ctx );
 496
 497    /**
 498     * Called to free tImage->Data.
 499     */
 500    void (*FreeTexImageData)( struct gl_context *ctx, struct gl_texture_image *tImage );
 501
 502    /** Map texture image data into user space */
 503    void (*MapTexture)( struct gl_context *ctx, struct gl_texture_object *tObj );
 504    /** Unmap texture images from user space */
 505    void (*UnmapTexture)( struct gl_context *ctx, struct gl_texture_object *tObj );
 506
 507    /**
 508     * Note: no context argument.  This function doesn't initially look
 509     * like it belongs here, except that the driver is the only entity
 510     * that knows for sure how the texture memory is allocated - via
 511     * the above callbacks.  There is then an argument that the driver
 512     * knows what memcpy paths might be fast.  Typically this is invoked with
 513     *
 514     * to -- a pointer into texture memory allocated by NewTextureImage() above.
 515     * from -- a pointer into client memory or a mesa temporary.
 516     * sz -- nr bytes to copy.
 517     */
 518    void* (*TextureMemCpy)( void *to, const void *from, size_t sz );
 519
 520    /**
 521     * Called by glAreTextureResident().
 522     */
 523    GLboolean (*IsTextureResident)( struct gl_context *ctx,
 524                                    struct gl_texture_object *t );
 525
 526    /**
 527     * Called when the texture's color lookup table is changed.
 528     *
 529     * If \p tObj is NULL then the shared texture palette
 530     * gl_texture_object::Palette is to be updated.
 531     */
 532    void (*UpdateTexturePalette)( struct gl_context *ctx,
 533                                  struct gl_texture_object *tObj );
 534    /*@}*/
 535
 536
 537    /**
 538     * \name Imaging functionality
 539     */
 540    /*@{*/
 541    void (*CopyColorTable)( struct gl_context *ctx,
 542                            GLenum target, GLenum internalformat,
 543                            GLint x, GLint y, GLsizei width );
 544
 545    void (*CopyColorSubTable)( struct gl_context *ctx,
 546                               GLenum target, GLsizei start,
 547                               GLint x, GLint y, GLsizei width );
 548    /*@}*/
 549
 550
 551    /**
 552     * \name Vertex/fragment program functions
 553     */
 554    /*@{*/
 555    /** Bind a vertex/fragment program */
 556    void (*BindProgram)(struct gl_context *ctx, GLenum target, struct gl_program *prog);
 557    /** Allocate a new program */
 558    struct gl_program * (*NewProgram)(struct gl_context *ctx, GLenum target, GLuint id);
 559    /** Delete a program */
 560    void (*DeleteProgram)(struct gl_context *ctx, struct gl_program *prog);
 561    /**
 562     * Notify driver that a program string (and GPU code) has been specified
 563     * or modified.  Return GL_TRUE or GL_FALSE to indicate if the program is
 564     * supported by the driver.
 565     */
 566    GLboolean (*ProgramStringNotify)(struct gl_context *ctx, GLenum target,
 567                                     struct gl_program *prog);
 568
 569    /** Query if program can be loaded onto hardware */
 570    GLboolean (*IsProgramNative)(struct gl_context *ctx, GLenum target,
 571                                 struct gl_program *prog);
 572
 573    /*@}*/
 574
 575    /**
 576     * \name GLSL shader/program functions.
 577     */
 578    /*@{*/
 579    /**
 580     * Called when a shader program is linked.
 581     *
 582     * This gives drivers an opportunity to clone the IR and make their
 583     * own transformations on it for the purposes of code generation.
 584     */
 585    GLboolean (*LinkShader)(struct gl_context *ctx, struct gl_shader_program *shader);
 586    /*@}*/
 587
 588    /**
 589     * \name State-changing functions.
 590     *
 591     * \note drawing functions are above.
 592     *
 593     * These functions are called by their corresponding OpenGL API functions.
 594     * They are \e also called by the gl_PopAttrib() function!!!
 595     * May add more functions like these to the device driver in the future.
 596     */
 597    /*@{*/
 598    /** Specify the alpha test function */
 599    void (*AlphaFunc)(struct gl_context *ctx, GLenum func, GLfloat ref);
 600    /** Set the blend color */
 601    void (*BlendColor)(struct gl_context *ctx, const GLfloat color[4]);
 602    /** Set the blend equation */
 603    void (*BlendEquationSeparate)(struct gl_context *ctx, GLenum modeRGB, GLenum modeA);
 604    void (*BlendEquationSeparatei)(struct gl_context *ctx, GLuint buffer,
 605                                   GLenum modeRGB, GLenum modeA);
 606    /** Specify pixel arithmetic */
 607    void (*BlendFuncSeparate)(struct gl_context *ctx,
 608                              GLenum sfactorRGB, GLenum dfactorRGB,
 609                              GLenum sfactorA, GLenum dfactorA);
 610    void (*BlendFuncSeparatei)(struct gl_context *ctx, GLuint buffer,
 611                               GLenum sfactorRGB, GLenum dfactorRGB,
 612                               GLenum sfactorA, GLenum dfactorA);
 613    /** Specify clear values for the color buffers */
 614    void (*ClearColor)(struct gl_context *ctx, const GLfloat color[4]);
 615    /** Specify the clear value for the depth buffer */
 616    void (*ClearDepth)(struct gl_context *ctx, GLclampd d);
 617    /** Specify the clear value for the stencil buffer */
 618    void (*ClearStencil)(struct gl_context *ctx, GLint s);
 619    /** Specify a plane against which all geometry is clipped */
 620    void (*ClipPlane)(struct gl_context *ctx, GLenum plane, const GLfloat *equation );
 621    /** Enable and disable writing of frame buffer color components */
 622    void (*ColorMask)(struct gl_context *ctx, GLboolean rmask, GLboolean gmask,
 623                      GLboolean bmask, GLboolean amask );
 624    void (*ColorMaskIndexed)(struct gl_context *ctx, GLuint buf, GLboolean rmask,
 625                             GLboolean gmask, GLboolean bmask, GLboolean amask);
 626    /** Cause a material color to track the current color */
 627    void (*ColorMaterial)(struct gl_context *ctx, GLenum face, GLenum mode);
 628    /** Specify whether front- or back-facing facets can be culled */
 629    void (*CullFace)(struct gl_context *ctx, GLenum mode);
 630    /** Define front- and back-facing polygons */
 631    void (*FrontFace)(struct gl_context *ctx, GLenum mode);
 632    /** Specify the value used for depth buffer comparisons */
 633    void (*DepthFunc)(struct gl_context *ctx, GLenum func);
 634    /** Enable or disable writing into the depth buffer */
 635    void (*DepthMask)(struct gl_context *ctx, GLboolean flag);
 636    /** Specify mapping of depth values from NDC to window coordinates */
 637    void (*DepthRange)(struct gl_context *ctx, GLclampd nearval, GLclampd farval);
 638    /** Specify the current buffer for writing */
 639    void (*DrawBuffer)( struct gl_context *ctx, GLenum buffer );
 640    /** Specify the buffers for writing for fragment programs*/
 641    void (*DrawBuffers)( struct gl_context *ctx, GLsizei n, const GLenum *buffers );
 642    /** Enable or disable server-side gl capabilities */
 643    void (*Enable)(struct gl_context *ctx, GLenum cap, GLboolean state);
 644    /** Specify fog parameters */
 645    void (*Fogfv)(struct gl_context *ctx, GLenum pname, const GLfloat *params);
 646    /** Specify implementation-specific hints */
 647    void (*Hint)(struct gl_context *ctx, GLenum target, GLenum mode);
 648    /** Set light source parameters.
 649     * Note: for GL_POSITION and GL_SPOT_DIRECTION, params will have already
 650     * been transformed to eye-space.
 651     */
 652    void (*Lightfv)(struct gl_context *ctx, GLenum light,
 653                    GLenum pname, const GLfloat *params );
 654    /** Set the lighting model parameters */
 655    void (*LightModelfv)(struct gl_context *ctx, GLenum pname, const GLfloat *params);
 656    /** Specify the line stipple pattern */
 657    void (*LineStipple)(struct gl_context *ctx, GLint factor, GLushort pattern );
 658    /** Specify the width of rasterized lines */
 659    void (*LineWidth)(struct gl_context *ctx, GLfloat width);
 660    /** Specify a logical pixel operation for color index rendering */
 661    void (*LogicOpcode)(struct gl_context *ctx, GLenum opcode);
 662    void (*PointParameterfv)(struct gl_context *ctx, GLenum pname,
 663                             const GLfloat *params);
 664    /** Specify the diameter of rasterized points */
 665    void (*PointSize)(struct gl_context *ctx, GLfloat size);
 666    /** Select a polygon rasterization mode */
 667    void (*PolygonMode)(struct gl_context *ctx, GLenum face, GLenum mode);
 668    /** Set the scale and units used to calculate depth values */
 669    void (*PolygonOffset)(struct gl_context *ctx, GLfloat factor, GLfloat units);
 670    /** Set the polygon stippling pattern */
 671    void (*PolygonStipple)(struct gl_context *ctx, const GLubyte *mask );
 672    /* Specifies the current buffer for reading */
 673    void (*ReadBuffer)( struct gl_context *ctx, GLenum buffer );
 674    /** Set rasterization mode */
 675    void (*RenderMode)(struct gl_context *ctx, GLenum mode );
 676    /** Define the scissor box */
 677    void (*Scissor)(struct gl_context *ctx, GLint x, GLint y, GLsizei w, GLsizei h);
 678    /** Select flat or smooth shading */
 679    void (*ShadeModel)(struct gl_context *ctx, GLenum mode);
 680    /** OpenGL 2.0 two-sided StencilFunc */
 681    void (*StencilFuncSeparate)(struct gl_context *ctx, GLenum face, GLenum func,
 682                                GLint ref, GLuint mask);
 683    /** OpenGL 2.0 two-sided StencilMask */
 684    void (*StencilMaskSeparate)(struct gl_context *ctx, GLenum face, GLuint mask);
 685    /** OpenGL 2.0 two-sided StencilOp */
 686    void (*StencilOpSeparate)(struct gl_context *ctx, GLenum face, GLenum fail,
 687                              GLenum zfail, GLenum zpass);
 688    /** Control the generation of texture coordinates */
 689    void (*TexGen)(struct gl_context *ctx, GLenum coord, GLenum pname,
 690                   const GLfloat *params);
 691    /** Set texture environment parameters */
 692    void (*TexEnv)(struct gl_context *ctx, GLenum target, GLenum pname,
 693                   const GLfloat *param);
 694    /** Set texture parameters */
 695    void (*TexParameter)(struct gl_context *ctx, GLenum target,
 696                         struct gl_texture_object *texObj,
 697                         GLenum pname, const GLfloat *params);
 698    /** Set the viewport */
 699    void (*Viewport)(struct gl_context *ctx, GLint x, GLint y, GLsizei w, GLsizei h);
 700    /*@}*/
 701
 702
 703    /**
 704     * \name Vertex/pixel buffer object functions
 705     */
 706    /*@{*/
 707    void (*BindBuffer)( struct gl_context *ctx, GLenum target,
 708                        struct gl_buffer_object *obj );
 709
 710    struct gl_buffer_object * (*NewBufferObject)( struct gl_context *ctx, GLuint buffer,
 711                                                  GLenum target );
 712
 713    void (*DeleteBuffer)( struct gl_context *ctx, struct gl_buffer_object *obj );
 714
 715    GLboolean (*BufferData)( struct gl_context *ctx, GLenum target, GLsizeiptrARB size,
 716                             const GLvoid *data, GLenum usage,
 717                             struct gl_buffer_object *obj );
 718
 719    void (*BufferSubData)( struct gl_context *ctx, GLenum target, GLintptrARB offset,
 720                           GLsizeiptrARB size, const GLvoid *data,
 721                           struct gl_buffer_object *obj );
 722
 723    void (*GetBufferSubData)( struct gl_context *ctx, GLenum target,
 724                              GLintptrARB offset, GLsizeiptrARB size,
 725                              GLvoid *data, struct gl_buffer_object *obj );
 726
 727    void * (*MapBuffer)( struct gl_context *ctx, GLenum target, GLenum access,
 728                         struct gl_buffer_object *obj );
 729
 730    void (*CopyBufferSubData)( struct gl_context *ctx,
 731                               struct gl_buffer_object *src,
 732                               struct gl_buffer_object *dst,
 733                               GLintptr readOffset, GLintptr writeOffset,
 734                               GLsizeiptr size );
 735
 736    /* May return NULL if MESA_MAP_NOWAIT_BIT is set in access:
 737     */
 738    void * (*MapBufferRange)( struct gl_context *ctx, GLenum target, GLintptr offset,
 739                              GLsizeiptr length, GLbitfield access,
 740                              struct gl_buffer_object *obj);
 741
 742    void (*FlushMappedBufferRange)(struct gl_context *ctx, GLenum target,
 743                                   GLintptr offset, GLsizeiptr length,
 744                                   struct gl_buffer_object *obj);
 745
 746    GLboolean (*UnmapBuffer)( struct gl_context *ctx, GLenum target,
 747                              struct gl_buffer_object *obj );
 748    /*@}*/
 749
 750    /**
 751     * \name Functions for GL_APPLE_object_purgeable
 752     */
 753    /*@{*/
 754    /* variations on ObjectPurgeable */
 755    GLenum (*BufferObjectPurgeable)( struct gl_context *ctx, struct gl_buffer_object *obj, GLenum option );
 756    GLenum (*RenderObjectPurgeable)( struct gl_context *ctx, struct gl_renderbuffer *obj, GLenum option );
 757    GLenum (*TextureObjectPurgeable)( struct gl_context *ctx, struct gl_texture_object *obj, GLenum option );
 758
 759    /* variations on ObjectUnpurgeable */
 760    GLenum (*BufferObjectUnpurgeable)( struct gl_context *ctx, struct gl_buffer_object *obj, GLenum option );
 761    GLenum (*RenderObjectUnpurgeable)( struct gl_context *ctx, struct gl_renderbuffer *obj, GLenum option );
 762    GLenum (*TextureObjectUnpurgeable)( struct gl_context *ctx, struct gl_texture_object *obj, GLenum option );
 763    /*@}*/
 764
 765    /**
 766     * \name Functions for GL_EXT_framebuffer_{object,blit}.
 767     */
 768    /*@{*/
 769    struct gl_framebuffer * (*NewFramebuffer)(struct gl_context *ctx, GLuint name);
 770    struct gl_renderbuffer * (*NewRenderbuffer)(struct gl_context *ctx, GLuint name);
 771    void (*BindFramebuffer)(struct gl_context *ctx, GLenum target,
 772                            struct gl_framebuffer *drawFb,
 773                            struct gl_framebuffer *readFb);
 774    void (*FramebufferRenderbuffer)(struct gl_context *ctx,
 775                                    struct gl_framebuffer *fb,
 776                                    GLenum attachment,
 777                                    struct gl_renderbuffer *rb);
 778    void (*RenderTexture)(struct gl_context *ctx,
 779                          struct gl_framebuffer *fb,
 780                          struct gl_renderbuffer_attachment *att);
 781    void (*FinishRenderTexture)(struct gl_context *ctx,
 782                                struct gl_renderbuffer_attachment *att);
 783    void (*ValidateFramebuffer)(struct gl_context *ctx,
 784                                struct gl_framebuffer *fb);
 785    /*@}*/
 786    void (*BlitFramebuffer)(struct gl_context *ctx,
 787                            GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,
 788                            GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1,
 789                            GLbitfield mask, GLenum filter);
 790
 791    /**
 792     * \name Query objects
 793     */
 794    /*@{*/
 795    struct gl_query_object * (*NewQueryObject)(struct gl_context *ctx, GLuint id);
 796    void (*DeleteQuery)(struct gl_context *ctx, struct gl_query_object *q);
 797    void (*BeginQuery)(struct gl_context *ctx, struct gl_query_object *q);
 798    void (*EndQuery)(struct gl_context *ctx, struct gl_query_object *q);
 799    void (*CheckQuery)(struct gl_context *ctx, struct gl_query_object *q);
 800    void (*WaitQuery)(struct gl_context *ctx, struct gl_query_object *q);
 801    /*@}*/
 802
 803
 804    /**
 805     * \name Vertex Array objects
 806     */
 807    /*@{*/
 808    struct gl_array_object * (*NewArrayObject)(struct gl_context *ctx, GLuint id);
 809    void (*DeleteArrayObject)(struct gl_context *ctx, struct gl_array_object *obj);
 810    void (*BindArrayObject)(struct gl_context *ctx, struct gl_array_object *obj);
 811    /*@}*/
 812
 813    /**
 814     * \name GLSL-related functions (ARB extensions and OpenGL 2.x)
 815     */
 816    /*@{*/
 817    struct gl_shader *(*NewShader)(struct gl_context *ctx, GLuint name, GLenum type);
 818    void (*DeleteShader)(struct gl_context *ctx, struct gl_shader *shader);
 819    struct gl_shader_program *(*NewShaderProgram)(struct gl_context *ctx, GLuint name);
 820    void (*DeleteShaderProgram)(struct gl_context *ctx,
 821                                struct gl_shader_program *shProg);
 822    void (*UseProgram)(struct gl_context *ctx, struct gl_shader_program *shProg);
 823    /*@}*/
 824
 825
 826    /**
 827     * \name Support for multiple T&L engines
 828     */
 829    /*@{*/
 830
 831    /**
 832     * Bitmask of state changes that require the current T&L module to be
 833     * validated, using ValidateTnlModule() below.
 834     */
 835    GLuint NeedValidate;
 836
 837    /**
 838     * Validate the current T&L module.
 839     *
 840     * This is called directly after UpdateState() when a state change that has
 841     * occurred matches the dd_function_table::NeedValidate bitmask above.  This
 842     * ensures all computed values are up to date, thus allowing the driver to
 843     * decide if the current T&L module needs to be swapped out.
 844     *
 845     * This must be non-NULL if a driver installs a custom T&L module and sets
 846     * the dd_function_table::NeedValidate bitmask, but may be NULL otherwise.
 847     */
 848    void (*ValidateTnlModule)( struct gl_context *ctx, GLuint new_state );
 849
 850    /**
 851     * Set by the driver-supplied T&L engine.
 852     *
 853     * Set to PRIM_OUTSIDE_BEGIN_END when outside glBegin()/glEnd().
 854     */
 855    GLuint CurrentExecPrimitive;
 856
 857    /**
 858     * Current state of an in-progress compilation.
 859     *
 860     * May take on any of the additional values PRIM_OUTSIDE_BEGIN_END,
 861     * PRIM_INSIDE_UNKNOWN_PRIM or PRIM_UNKNOWN defined above.
 862     */
 863    GLuint CurrentSavePrimitive;
 864
 865
 866 #define FLUSH_STORED_VERTICES 0x1
 867 #define FLUSH_UPDATE_CURRENT  0x2
 868    /**
 869     * Set by the driver-supplied T&L engine whenever vertices are buffered
 870     * between glBegin()/glEnd() objects or __struct gl_contextRec::Current is not
 871     * updated.
 872     *
 873     * The dd_function_table::FlushVertices call below may be used to resolve
 874     * these conditions.
 875     */
 876    GLuint NeedFlush;
 877    GLuint SaveNeedFlush;
 878
 879
 880    /* Called prior to any of the GLvertexformat functions being
 881     * called.  Paired with Driver.FlushVertices().
 882     */
 883    void (*BeginVertices)( struct gl_context *ctx );
 884
 885    /**
 886     * If inside glBegin()/glEnd(), it should ASSERT(0).  Otherwise, if
 887     * FLUSH_STORED_VERTICES bit in \p flags is set flushes any buffered
 888     * vertices, if FLUSH_UPDATE_CURRENT bit is set updates
 889     * __struct gl_contextRec::Current and gl_light_attrib::Material
 890     *
 891     * Note that the default T&L engine never clears the
 892     * FLUSH_UPDATE_CURRENT bit, even after performing the update.
 893     */
 894    void (*FlushVertices)( struct gl_context *ctx, GLuint flags );
 895    void (*SaveFlushVertices)( struct gl_context *ctx );
 896
 897    /**
 898     * Give the driver the opportunity to hook in its own vtxfmt for
 899     * compiling optimized display lists.  This is called on each valid
 900     * glBegin() during list compilation.
 901     */
 902    GLboolean (*NotifySaveBegin)( struct gl_context *ctx, GLenum mode );
 903
 904    /**
 905     * Notify driver that the special derived value _NeedEyeCoords has
 906     * changed.
 907     */
 908    void (*LightingSpaceChange)( struct gl_context *ctx );
 909
 910    /**
 911     * Called by glNewList().
 912     *
 913     * Let the T&L component know what is going on with display lists
 914     * in time to make changes to dispatch tables, etc.
 915     */
 916    void (*NewList)( struct gl_context *ctx, GLuint list, GLenum mode );
 917    /**
 918     * Called by glEndList().
 919     *
 920     * \sa dd_function_table::NewList.
 921     */
 922    void (*EndList)( struct gl_context *ctx );
 923
 924    /**
 925     * Called by glCallList(s).
 926     *
 927     * Notify the T&L component before and after calling a display list.
 928     */
 929    void (*BeginCallList)( struct gl_context *ctx,
 930                           struct gl_display_list *dlist );
 931    /**
 932     * Called by glEndCallList().
 933     *
 934     * \sa dd_function_table::BeginCallList.
 935     */
 936    void (*EndCallList)( struct gl_context *ctx );
 937
 938
 939    /**
 940     * \name GL_ARB_sync interfaces
 941     */
 942    /*@{*/
 943    struct gl_sync_object * (*NewSyncObject)(struct gl_context *, GLenum);
 944    void (*FenceSync)(struct gl_context *, struct gl_sync_object *, GLenum, GLbitfield);
 945    void (*DeleteSyncObject)(struct gl_context *, struct gl_sync_object *);
 946    void (*CheckSync)(struct gl_context *, struct gl_sync_object *);
 947    void (*ClientWaitSync)(struct gl_context *, struct gl_sync_object *,
 948                           GLbitfield, GLuint64);
 949    void (*ServerWaitSync)(struct gl_context *, struct gl_sync_object *,
 950                           GLbitfield, GLuint64);
 951    /*@}*/
 952
 953    /** GL_NV_conditional_render */
 954    void (*BeginConditionalRender)(struct gl_context *ctx, struct gl_query_object *q,
 955                                   GLenum mode);
 956    void (*EndConditionalRender)(struct gl_context *ctx, struct gl_query_object *q);
 957
 958    /**
 959     * \name GL_OES_draw_texture interface
 960     */
 961    /*@{*/
 962    void (*DrawTex)(struct gl_context *ctx, GLfloat x, GLfloat y, GLfloat z,
 963                    GLfloat width, GLfloat height);
 964    /*@}*/
 965
 966    /**
 967     * \name GL_OES_EGL_image interface
 968     */
 969    void (*EGLImageTargetTexture2D)(struct gl_context *ctx, GLenum target,
 970                                    struct gl_texture_object *texObj,
 971                                    struct gl_texture_image *texImage,
 972                                    GLeglImageOES image_handle);
 973    void (*EGLImageTargetRenderbufferStorage)(struct gl_context *ctx,
 974                                              struct gl_renderbuffer *rb,
 975                                              void *image_handle);
 976
 977    /**
 978     * \name GL_EXT_transform_feedback interface
 979     */
 980    struct gl_transform_feedback_object *
 981         (*NewTransformFeedback)(struct gl_context *ctx, GLuint name);
 982    void (*DeleteTransformFeedback)(struct gl_context *ctx,
 983                                    struct gl_transform_feedback_object *obj);
 984    void (*BeginTransformFeedback)(struct gl_context *ctx, GLenum mode,
 985                                   struct gl_transform_feedback_object *obj);
 986    void (*EndTransformFeedback)(struct gl_context *ctx,
 987                                 struct gl_transform_feedback_object *obj);
 988    void (*PauseTransformFeedback)(struct gl_context *ctx,
 989                                   struct gl_transform_feedback_object *obj);
 990    void (*ResumeTransformFeedback)(struct gl_context *ctx,
 991                                    struct gl_transform_feedback_object *obj);
 992    void (*DrawTransformFeedback)(struct gl_context *ctx, GLenum mode,
 993                                  struct gl_transform_feedback_object *obj);
 994
 995    /**
 996     * \name GL_NV_texture_barrier interface
 997     */
 998    void (*TextureBarrier)(struct gl_context *ctx);
 999
1000    /**
1001     * \name GL_ARB_sampler_objects
1002     */
1003    struct gl_sampler_object * (*NewSamplerObject)(struct gl_context *ctx,
1004                                                   GLuint name);
1005    void (*DeleteSamplerObject)(struct gl_context *ctx,
1006                                struct gl_sampler_object *samp);
1007 };
1008
1009
1010 /**
1011  * Transform/Clip/Lighting interface
1012  *
1013  * Drivers present a reduced set of the functions possible in
1014  * glBegin()/glEnd() objects.  Core mesa provides translation stubs for the
1015  * remaining functions to map down to these entry points.
1016  *
1017  * These are the initial values to be installed into dispatch by
1018  * mesa.  If the T&L driver wants to modify the dispatch table
1019  * while installed, it must do so itself.  It would be possible for
1020  * the vertexformat to install its own initial values for these
1021  * functions, but this way there is an obvious list of what is
1022  * expected of the driver.
1023  *
1024  * If the driver wants to hook in entry points other than those
1025  * listed, it must restore them to their original values in
1026  * the disable() callback, below.
1027  */
1028 typedef struct {
1029    /**
1030     * \name Vertex
1031     */
1032    /*@{*/
1033    void (GLAPIENTRYP ArrayElement)( GLint );
1034    void (GLAPIENTRYP Color3f)( GLfloat, GLfloat, GLfloat );
1035    void (GLAPIENTRYP Color3fv)( const GLfloat * );
1036    void (GLAPIENTRYP Color4f)( GLfloat, GLfloat, GLfloat, GLfloat );
1037    void (GLAPIENTRYP Color4fv)( const GLfloat * );
1038    void (GLAPIENTRYP EdgeFlag)( GLboolean );
1039    void (GLAPIENTRYP EvalCoord1f)( GLfloat );
1040    void (GLAPIENTRYP EvalCoord1fv)( const GLfloat * );
1041    void (GLAPIENTRYP EvalCoord2f)( GLfloat, GLfloat );
1042    void (GLAPIENTRYP EvalCoord2fv)( const GLfloat * );
1043    void (GLAPIENTRYP EvalPoint1)( GLint );
1044    void (GLAPIENTRYP EvalPoint2)( GLint, GLint );
1045    void (GLAPIENTRYP FogCoordfEXT)( GLfloat );
1046    void (GLAPIENTRYP FogCoordfvEXT)( const GLfloat * );
1047    void (GLAPIENTRYP Indexf)( GLfloat );
1048    void (GLAPIENTRYP Indexfv)( const GLfloat * );
1049    void (GLAPIENTRYP Materialfv)( GLenum face, GLenum pname, const GLfloat * );
1050    void (GLAPIENTRYP MultiTexCoord1fARB)( GLenum, GLfloat );
1051    void (GLAPIENTRYP MultiTexCoord1fvARB)( GLenum, const GLfloat * );
1052    void (GLAPIENTRYP MultiTexCoord2fARB)( GLenum, GLfloat, GLfloat );
1053    void (GLAPIENTRYP MultiTexCoord2fvARB)( GLenum, const GLfloat * );
1054    void (GLAPIENTRYP MultiTexCoord3fARB)( GLenum, GLfloat, GLfloat, GLfloat );
1055    void (GLAPIENTRYP MultiTexCoord3fvARB)( GLenum, const GLfloat * );
1056    void (GLAPIENTRYP MultiTexCoord4fARB)( GLenum, GLfloat, GLfloat, GLfloat, GLfloat );
1057    void (GLAPIENTRYP MultiTexCoord4fvARB)( GLenum, const GLfloat * );
1058    void (GLAPIENTRYP Normal3f)( GLfloat, GLfloat, GLfloat );
1059    void (GLAPIENTRYP Normal3fv)( const GLfloat * );
1060    void (GLAPIENTRYP SecondaryColor3fEXT)( GLfloat, GLfloat, GLfloat );
1061    void (GLAPIENTRYP SecondaryColor3fvEXT)( const GLfloat * );
1062    void (GLAPIENTRYP TexCoord1f)( GLfloat );
1063    void (GLAPIENTRYP TexCoord1fv)( const GLfloat * );
1064    void (GLAPIENTRYP TexCoord2f)( GLfloat, GLfloat );
1065    void (GLAPIENTRYP TexCoord2fv)( const GLfloat * );
1066    void (GLAPIENTRYP TexCoord3f)( GLfloat, GLfloat, GLfloat );
1067    void (GLAPIENTRYP TexCoord3fv)( const GLfloat * );
1068    void (GLAPIENTRYP TexCoord4f)( GLfloat, GLfloat, GLfloat, GLfloat );
1069    void (GLAPIENTRYP TexCoord4fv)( const GLfloat * );
1070    void (GLAPIENTRYP Vertex2f)( GLfloat, GLfloat );
1071    void (GLAPIENTRYP Vertex2fv)( const GLfloat * );
1072    void (GLAPIENTRYP Vertex3f)( GLfloat, GLfloat, GLfloat );
1073    void (GLAPIENTRYP Vertex3fv)( const GLfloat * );
1074    void (GLAPIENTRYP Vertex4f)( GLfloat, GLfloat, GLfloat, GLfloat );
1075    void (GLAPIENTRYP Vertex4fv)( const GLfloat * );
1076    void (GLAPIENTRYP CallList)( GLuint );
1077    void (GLAPIENTRYP CallLists)( GLsizei, GLenum, const GLvoid * );
1078    void (GLAPIENTRYP Begin)( GLenum );
1079    void (GLAPIENTRYP End)( void );
1080    void (GLAPIENTRYP PrimitiveRestartNV)( void );
1081    /* GL_NV_vertex_program */
1082    void (GLAPIENTRYP VertexAttrib1fNV)( GLuint index, GLfloat x );
1083    void (GLAPIENTRYP VertexAttrib1fvNV)( GLuint index, const GLfloat *v );
1084    void (GLAPIENTRYP VertexAttrib2fNV)( GLuint index, GLfloat x, GLfloat y );
1085    void (GLAPIENTRYP VertexAttrib2fvNV)( GLuint index, const GLfloat *v );
1086    void (GLAPIENTRYP VertexAttrib3fNV)( GLuint index, GLfloat x, GLfloat y, GLfloat z );
1087    void (GLAPIENTRYP VertexAttrib3fvNV)( GLuint index, const GLfloat *v );
1088    void (GLAPIENTRYP VertexAttrib4fNV)( GLuint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w );
1089    void (GLAPIENTRYP VertexAttrib4fvNV)( GLuint index, const GLfloat *v );
1090    /* GL_ARB_vertex_program */
1091    void (GLAPIENTRYP VertexAttrib1fARB)( GLuint index, GLfloat x );
1092    void (GLAPIENTRYP VertexAttrib1fvARB)( GLuint index, const GLfloat *v );
1093    void (GLAPIENTRYP VertexAttrib2fARB)( GLuint index, GLfloat x, GLfloat y );
1094    void (GLAPIENTRYP VertexAttrib2fvARB)( GLuint index, const GLfloat *v );
1095    void (GLAPIENTRYP VertexAttrib3fARB)( GLuint index, GLfloat x, GLfloat y, GLfloat z );
1096    void (GLAPIENTRYP VertexAttrib3fvARB)( GLuint index, const GLfloat *v );
1097    void (GLAPIENTRYP VertexAttrib4fARB)( GLuint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w );
1098    void (GLAPIENTRYP VertexAttrib4fvARB)( GLuint index, const GLfloat *v );
1099
1100    /* GL_EXT_gpu_shader4 / GL 3.0 */
1101    void (GLAPIENTRYP VertexAttribI1i)( GLuint index, GLint x);
1102    void (GLAPIENTRYP VertexAttribI2i)( GLuint index, GLint x, GLint y);
1103    void (GLAPIENTRYP VertexAttribI3i)( GLuint index, GLint x, GLint y, GLint z);
1104    void (GLAPIENTRYP VertexAttribI4i)( GLuint index, GLint x, GLint y, GLint z, GLint w);
1105    void (GLAPIENTRYP VertexAttribI2iv)( GLuint index, const GLint *v);
1106    void (GLAPIENTRYP VertexAttribI3iv)( GLuint index, const GLint *v);
1107    void (GLAPIENTRYP VertexAttribI4iv)( GLuint index, const GLint *v);
1108
1109    void (GLAPIENTRYP VertexAttribI1ui)( GLuint index, GLuint x);
1110    void (GLAPIENTRYP VertexAttribI2ui)( GLuint index, GLuint x, GLuint y);
1111    void (GLAPIENTRYP VertexAttribI3ui)( GLuint index, GLuint x, GLuint y, GLuint z);
1112    void (GLAPIENTRYP VertexAttribI4ui)( GLuint index, GLuint x, GLuint y, GLuint z, GLuint w);
1113    void (GLAPIENTRYP VertexAttribI2uiv)( GLuint index, const GLuint *v);
1114    void (GLAPIENTRYP VertexAttribI3uiv)( GLuint index, const GLuint *v);
1115    void (GLAPIENTRYP VertexAttribI4uiv)( GLuint index, const GLuint *v);
1116
1117    /*@}*/
1118
1119    void (GLAPIENTRYP Rectf)( GLfloat, GLfloat, GLfloat, GLfloat );
1120
1121    /**
1122     * \name Array
1123     */
1124    /*@{*/
1125    void (GLAPIENTRYP DrawArrays)( GLenum mode, GLint start, GLsizei count );
1126    void (GLAPIENTRYP DrawElements)( GLenum mode, GLsizei count, GLenum type,
1127                          const GLvoid *indices );
1128    void (GLAPIENTRYP DrawRangeElements)( GLenum mode, GLuint start,
1129                               GLuint end, GLsizei count,
1130                               GLenum type, const GLvoid *indices );
1131    void (GLAPIENTRYP MultiDrawElementsEXT)( GLenum mode, const GLsizei *count,
1132                                             GLenum type,
1133                                             const GLvoid **indices,
1134                                             GLsizei primcount);
1135    void (GLAPIENTRYP DrawElementsBaseVertex)( GLenum mode, GLsizei count,
1136                                               GLenum type,
1137                                               const GLvoid *indices,
1138                                               GLint basevertex );
1139    void (GLAPIENTRYP DrawRangeElementsBaseVertex)( GLenum mode, GLuint start,
1140                                                    GLuint end, GLsizei count,
1141                                                    GLenum type,
1142                                                    const GLvoid *indices,
1143                                                    GLint basevertex);
1144    void (GLAPIENTRYP MultiDrawElementsBaseVertex)( GLenum mode,
1145                                                    const GLsizei *count,
1146                                                    GLenum type,
1147                                                    const GLvoid **indices,
1148                                                    GLsizei primcount,
1149                                                    const GLint *basevertex);
1150    void (GLAPIENTRYP DrawArraysInstanced)(GLenum mode, GLint first,
1151                                           GLsizei count, GLsizei primcount);
1152    void (GLAPIENTRYP DrawElementsInstanced)(GLenum mode, GLsizei count,
1153                                             GLenum type, const GLvoid *indices,
1154                                             GLsizei primcount);
1155    void (GLAPIENTRYP DrawElementsInstancedBaseVertex)(GLenum mode, GLsizei count,
1156                                             GLenum type, const GLvoid *indices,
1157                                             GLsizei primcount, GLint basevertex);
1158    /*@}*/
1159
1160    /**
1161     * \name Eval
1162     *
1163     * If you don't support eval, fallback to the default vertex format
1164     * on receiving an eval call and use the pipeline mechanism to
1165     * provide partial T&L acceleration.
1166     *
1167     * Mesa will provide a set of helper functions to do eval within
1168     * accelerated vertex formats, eventually...
1169     */
1170    /*@{*/
1171    void (GLAPIENTRYP EvalMesh1)( GLenum mode, GLint i1, GLint i2 );
1172    void (GLAPIENTRYP EvalMesh2)( GLenum mode, GLint i1, GLint i2, GLint j1, GLint j2 );
1173    /*@}*/
1174
1175 } GLvertexformat;
1176
1177
1178 #endif /* DD_INCLUDED */