include/GL/internal/dri_interface.h

   1 /*
   2  * Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.
   3  * Copyright 2007-2008 Red Hat, Inc.
   4  * (C) Copyright IBM Corporation 2004
   5  * All Rights Reserved.
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a
   8  * copy of this software and associated documentation files (the "Software"),
   9  * to deal in the Software without restriction, including without limitation
  10  * on the rights to use, copy, modify, merge, publish, distribute, sub
  11  * license, and/or sell copies of the Software, and to permit persons to whom
  12  * the Software is furnished to do so, subject to the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the next
  15  * paragraph) shall be included in all copies or substantial portions of the
  16  * Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  19  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
  21  * THE COPYRIGHT HOLDERS AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
  22  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  23  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  24  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  */
  26
  27 /**
  28  * \file dri_interface.h
  29  *
  30  * This file contains all the types and functions that define the interface
  31  * between a DRI driver and driver loader.  Currently, the most common driver
  32  * loader is the XFree86 libGL.so.  However, other loaders do exist, and in
  33  * the future the server-side libglx.a will also be a loader.
  34  *
  35  * \author Kevin E. Martin <kevin@precisioninsight.com>
  36  * \author Ian Romanick <idr@us.ibm.com>
  37  * \author Kristian Høgsberg <krh@redhat.com>
  38  */
  39
  40 #ifndef DRI_INTERFACE_H
  41 #define DRI_INTERFACE_H
  42
  43 /* Make this something other than __APPLE__ for other arcs with no drm.h */
  44 #ifndef __APPLE__
  45 #include <drm.h>
  46 #else
  47 typedef unsigned int drm_context_t;
  48 typedef unsigned int drm_drawable_t;
  49 typedef struct drm_clip_rect drm_clip_rect_t;
  50 #endif
  51
  52 /**
  53  * \name DRI interface structures
  54  *
  55  * The following structures define the interface between the GLX client
  56  * side library and the DRI (direct rendering infrastructure).
  57  */
  58 /*@{*/
  59 typedef struct __DRIdisplayRec          __DRIdisplay;
  60 typedef struct __DRIscreenRec           __DRIscreen;
  61 typedef struct __DRIcontextRec          __DRIcontext;
  62 typedef struct __DRIdrawableRec         __DRIdrawable;
  63 typedef struct __DRIconfigRec           __DRIconfig;
  64 typedef struct __DRIframebufferRec      __DRIframebuffer;
  65 typedef struct __DRIversionRec          __DRIversion;
  66
  67 typedef struct __DRIcoreExtensionRec            __DRIcoreExtension;
  68 typedef struct __DRIextensionRec                __DRIextension;
  69 typedef struct __DRIcopySubBufferExtensionRec   __DRIcopySubBufferExtension;
  70 typedef struct __DRIswapControlExtensionRec     __DRIswapControlExtension;
  71 typedef struct __DRIallocateExtensionRec        __DRIallocateExtension;
  72 typedef struct __DRIframeTrackingExtensionRec   __DRIframeTrackingExtension;
  73 typedef struct __DRImediaStreamCounterExtensionRec      __DRImediaStreamCounterExtension;
  74 typedef struct __DRItexOffsetExtensionRec       __DRItexOffsetExtension;
  75 typedef struct __DRItexBufferExtensionRec       __DRItexBufferExtension;
  76 typedef struct __DRIlegacyExtensionRec          __DRIlegacyExtension;
  77 typedef struct __DRIswrastExtensionRec          __DRIswrastExtension;
  78 typedef struct __DRIbufferRec                   __DRIbuffer;
  79 typedef struct __DRIdri2ExtensionRec            __DRIdri2Extension;
  80 typedef struct __DRIdri2LoaderExtensionRec      __DRIdri2LoaderExtension;
  81
  82 /*@}*/
  83
  84
  85 /**
  86  * Extension struct.  Drivers 'inherit' from this struct by embedding
  87  * it as the first element in the extension struct.
  88  *
  89  * We never break API in for a DRI extension.  If we need to change
  90  * the way things work in a non-backwards compatible manner, we
  91  * introduce a new extension.  During a transition period, we can
  92  * leave both the old and the new extension in the driver, which
  93  * allows us to move to the new interface without having to update the
  94  * loader(s) in lock step.
  95  *
  96  * However, we can add entry points to an extension over time as long
  97  * as we don't break the old ones.  As we add entry points to an
  98  * extension, we increase the version number.  The corresponding
  99  * #define can be used to guard code that accesses the new entry
 100  * points at compile time and the version field in the extension
 101  * struct can be used at run-time to determine how to use the
 102  * extension.
 103  */
 104 struct __DRIextensionRec {
 105     const char *name;
 106     int version;
 107 };
 108
 109 /**
 110  * The first set of extension are the screen extensions, returned by
 111  * __DRIcore::getExtensions().  This entry point will return a list of
 112  * extensions and the loader can use the ones it knows about by
 113  * casting them to more specific extensions and advertising any GLX
 114  * extensions the DRI extensions enables.
 115  */
 116
 117 /**
 118  * Used by drivers to indicate support for setting the read drawable.
 119  */
 120 #define __DRI_READ_DRAWABLE "DRI_ReadDrawable"
 121 #define __DRI_READ_DRAWABLE_VERSION 1
 122
 123 /**
 124  * Used by drivers that implement the GLX_MESA_copy_sub_buffer extension.
 125  */
 126 #define __DRI_COPY_SUB_BUFFER "DRI_CopySubBuffer"
 127 #define __DRI_COPY_SUB_BUFFER_VERSION 1
 128 struct __DRIcopySubBufferExtensionRec {
 129     __DRIextension base;
 130     void (*copySubBuffer)(__DRIdrawable *drawable, int x, int y, int w, int h);
 131 };
 132
 133 /**
 134  * Used by drivers that implement the GLX_SGI_swap_control or
 135  * GLX_MESA_swap_control extension.
 136  */
 137 #define __DRI_SWAP_CONTROL "DRI_SwapControl"
 138 #define __DRI_SWAP_CONTROL_VERSION 1
 139 struct __DRIswapControlExtensionRec {
 140     __DRIextension base;
 141     void (*setSwapInterval)(__DRIdrawable *drawable, unsigned int inteval);
 142     unsigned int (*getSwapInterval)(__DRIdrawable *drawable);
 143 };
 144
 145 /**
 146  * Used by drivers that implement the GLX_MESA_allocate_memory.
 147  */
 148 #define __DRI_ALLOCATE "DRI_Allocate"
 149 #define __DRI_ALLOCATE_VERSION 1
 150 struct __DRIallocateExtensionRec {
 151     __DRIextension base;
 152
 153     void *(*allocateMemory)(__DRIscreen *screen, GLsizei size,
 154                             GLfloat readfreq, GLfloat writefreq,
 155                             GLfloat priority);
 156
 157     void (*freeMemory)(__DRIscreen *screen, GLvoid *pointer);
 158
 159     GLuint (*memoryOffset)(__DRIscreen *screen, const GLvoid *pointer);
 160 };
 161
 162 /**
 163  * Used by drivers that implement the GLX_MESA_swap_frame_usage extension.
 164  */
 165 #define __DRI_FRAME_TRACKING "DRI_FrameTracking"
 166 #define __DRI_FRAME_TRACKING_VERSION 1
 167 struct __DRIframeTrackingExtensionRec {
 168     __DRIextension base;
 169
 170     /**
 171      * Enable or disable frame usage tracking.
 172      *
 173      * \since Internal API version 20030317.
 174      */
 175     int (*frameTracking)(__DRIdrawable *drawable, GLboolean enable);
 176
 177     /**
 178      * Retrieve frame usage information.
 179      *
 180      * \since Internal API version 20030317.
 181      */
 182     int (*queryFrameTracking)(__DRIdrawable *drawable,
 183                               int64_t * sbc, int64_t * missedFrames,
 184                               float * lastMissedUsage, float * usage);
 185 };
 186
 187
 188 /**
 189  * Used by drivers that implement the GLX_SGI_video_sync extension.
 190  */
 191 #define __DRI_MEDIA_STREAM_COUNTER "DRI_MediaStreamCounter"
 192 #define __DRI_MEDIA_STREAM_COUNTER_VERSION 1
 193 struct __DRImediaStreamCounterExtensionRec {
 194     __DRIextension base;
 195
 196     /**
 197      * Wait for the MSC to equal target_msc, or, if that has already passed,
 198      * the next time (MSC % divisor) is equal to remainder.  If divisor is
 199      * zero, the function will return as soon as MSC is greater than or equal
 200      * to target_msc.
 201      */
 202     int (*waitForMSC)(__DRIdrawable *drawable,
 203                       int64_t target_msc, int64_t divisor, int64_t remainder,
 204                       int64_t * msc, int64_t * sbc);
 205
 206     /**
 207      * Get the number of vertical refreshes since some point in time before
 208      * this function was first called (i.e., system start up).
 209      */
 210     int (*getDrawableMSC)(__DRIscreen *screen, __DRIdrawable *drawable,
 211                           int64_t *msc);
 212 };
 213
 214
 215 #define __DRI_TEX_OFFSET "DRI_TexOffset"
 216 #define __DRI_TEX_OFFSET_VERSION 1
 217 struct __DRItexOffsetExtensionRec {
 218     __DRIextension base;
 219
 220     /**
 221      * Method to override base texture image with a driver specific 'offset'.
 222      * The depth passed in allows e.g. to ignore the alpha channel of texture
 223      * images where the non-alpha components don't occupy a whole texel.
 224      *
 225      * For GLX_EXT_texture_from_pixmap with AIGLX.
 226      */
 227     void (*setTexOffset)(__DRIcontext *pDRICtx, GLint texname,
 228                          unsigned long long offset, GLint depth, GLuint pitch);
 229 };
 230
 231
 232 #define __DRI_TEX_BUFFER "DRI_TexBuffer"
 233 #define __DRI_TEX_BUFFER_VERSION 1
 234 struct __DRItexBufferExtensionRec {
 235     __DRIextension base;
 236
 237     /**
 238      * Method to override base texture image with the contents of a
 239      * __DRIdrawable.
 240      *
 241      * For GLX_EXT_texture_from_pixmap with AIGLX.
 242      */
 243     void (*setTexBuffer)(__DRIcontext *pDRICtx,
 244                          GLint target,
 245                          __DRIdrawable *pDraw);
 246 };
 247
 248
 249 /**
 250  * XML document describing the configuration options supported by the
 251  * driver.
 252  */
 253 extern const char __driConfigOptions[];
 254
 255 /*@}*/
 256
 257 /**
 258  * The following extensions describe loader features that the DRI
 259  * driver can make use of.  Some of these are mandatory, such as the
 260  * getDrawableInfo extension for DRI and the DRI Loader extensions for
 261  * DRI2, while others are optional, and if present allow the driver to
 262  * expose certain features.  The loader pass in a NULL terminated
 263  * array of these extensions to the driver in the createNewScreen
 264  * constructor.
 265  */
 266
 267 typedef struct __DRIgetDrawableInfoExtensionRec __DRIgetDrawableInfoExtension;
 268 typedef struct __DRIsystemTimeExtensionRec __DRIsystemTimeExtension;
 269 typedef struct __DRIdamageExtensionRec __DRIdamageExtension;
 270 typedef struct __DRIloaderExtensionRec __DRIloaderExtension;
 271 typedef struct __DRIswrastLoaderExtensionRec __DRIswrastLoaderExtension;
 272
 273
 274 /**
 275  * Callback to getDrawableInfo protocol
 276  */
 277 #define __DRI_GET_DRAWABLE_INFO "DRI_GetDrawableInfo"
 278 #define __DRI_GET_DRAWABLE_INFO_VERSION 1
 279 struct __DRIgetDrawableInfoExtensionRec {
 280     __DRIextension base;
 281
 282     /**
 283      * This function is used to get information about the position, size, and
 284      * clip rects of a drawable.
 285      */
 286     GLboolean (* getDrawableInfo) ( __DRIdrawable *drawable,
 287         unsigned int * index, unsigned int * stamp,
 288         int * x, int * y, int * width, int * height,
 289         int * numClipRects, drm_clip_rect_t ** pClipRects,
 290         int * backX, int * backY,
 291         int * numBackClipRects, drm_clip_rect_t ** pBackClipRects,
 292         void *loaderPrivate);
 293 };
 294
 295 /**
 296  * Callback to get system time for media stream counter extensions.
 297  */
 298 #define __DRI_SYSTEM_TIME "DRI_SystemTime"
 299 #define __DRI_SYSTEM_TIME_VERSION 1
 300 struct __DRIsystemTimeExtensionRec {
 301     __DRIextension base;
 302
 303     /**
 304      * Get the 64-bit unadjusted system time (UST).
 305      */
 306     int (*getUST)(int64_t * ust);
 307
 308     /**
 309      * Get the media stream counter (MSC) rate.
 310      *
 311      * Matching the definition in GLX_OML_sync_control, this function returns
 312      * the rate of the "media stream counter".  In practical terms, this is
 313      * the frame refresh rate of the display.
 314      */
 315     GLboolean (*getMSCRate)(__DRIdrawable *draw,
 316                             int32_t * numerator, int32_t * denominator,
 317                             void *loaderPrivate);
 318 };
 319
 320 /**
 321  * Damage reporting
 322  */
 323 #define __DRI_DAMAGE "DRI_Damage"
 324 #define __DRI_DAMAGE_VERSION 1
 325 struct __DRIdamageExtensionRec {
 326     __DRIextension base;
 327
 328     /**
 329      * Reports areas of the given drawable which have been modified by the
 330      * driver.
 331      *
 332      * \param drawable which the drawing was done to.
 333      * \param rects rectangles affected, with the drawable origin as the
 334      *        origin.
 335      * \param x X offset of the drawable within the screen (used in the
 336      *        front_buffer case)
 337      * \param y Y offset of the drawable within the screen.
 338      * \param front_buffer boolean flag for whether the drawing to the
 339      *        drawable was actually done directly to the front buffer (instead
 340      *        of backing storage, for example)
 341      * \param loaderPrivate the data passed in at createNewDrawable time
 342      */
 343     void (*reportDamage)(__DRIdrawable *draw,
 344                          int x, int y,
 345                          drm_clip_rect_t *rects, int num_rects,
 346                          GLboolean front_buffer,
 347                          void *loaderPrivate);
 348 };
 349
 350 #define __DRI_SWRAST_IMAGE_OP_DRAW      1
 351 #define __DRI_SWRAST_IMAGE_OP_CLEAR     2
 352 #define __DRI_SWRAST_IMAGE_OP_SWAP      3
 353
 354 /**
 355  * SWRast Loader extension.
 356  */
 357 #define __DRI_SWRAST_LOADER "DRI_SWRastLoader"
 358 #define __DRI_SWRAST_LOADER_VERSION 1
 359 struct __DRIswrastLoaderExtensionRec {
 360     __DRIextension base;
 361
 362     /*
 363      * Drawable position and size
 364      */
 365     void (*getDrawableInfo)(__DRIdrawable *drawable,
 366                             int *x, int *y, int *width, int *height,
 367                             void *loaderPrivate);
 368
 369     /**
 370      * Put image to drawable
 371      */
 372     void (*putImage)(__DRIdrawable *drawable, int op,
 373                      int x, int y, int width, int height, char *data,
 374                      void *loaderPrivate);
 375
 376     /**
 377      * Get image from drawable
 378      */
 379     void (*getImage)(__DRIdrawable *drawable,
 380                      int x, int y, int width, int height, char *data,
 381                      void *loaderPrivate);
 382 };
 383
 384 /**
 385  * The remaining extensions describe driver extensions, immediately
 386  * available interfaces provided by the driver.  To start using the
 387  * driver, dlsym() for the __DRI_DRIVER_EXTENSIONS symbol and look for
 388  * the extension you need in the array.
 389  */
 390 #define __DRI_DRIVER_EXTENSIONS "__driDriverExtensions"
 391
 392 /**
 393  * Tokens for __DRIconfig attribs.  A number of attributes defined by
 394  * GLX or EGL standards are not in the table, as they must be provided
 395  * by the loader.  For example, FBConfig ID or visual ID, drawable type.
 396  */
 397
 398 #define __DRI_ATTRIB_BUFFER_SIZE                 1
 399 #define __DRI_ATTRIB_LEVEL                       2
 400 #define __DRI_ATTRIB_RED_SIZE                    3
 401 #define __DRI_ATTRIB_GREEN_SIZE                  4
 402 #define __DRI_ATTRIB_BLUE_SIZE                   5
 403 #define __DRI_ATTRIB_LUMINANCE_SIZE              6
 404 #define __DRI_ATTRIB_ALPHA_SIZE                  7
 405 #define __DRI_ATTRIB_ALPHA_MASK_SIZE             8
 406 #define __DRI_ATTRIB_DEPTH_SIZE                  9
 407 #define __DRI_ATTRIB_STENCIL_SIZE               10
 408 #define __DRI_ATTRIB_ACCUM_RED_SIZE             11
 409 #define __DRI_ATTRIB_ACCUM_GREEN_SIZE           12
 410 #define __DRI_ATTRIB_ACCUM_BLUE_SIZE            13
 411 #define __DRI_ATTRIB_ACCUM_ALPHA_SIZE           14
 412 #define __DRI_ATTRIB_SAMPLE_BUFFERS             15
 413 #define __DRI_ATTRIB_SAMPLES                    16
 414 #define __DRI_ATTRIB_RENDER_TYPE                17
 415 #define __DRI_ATTRIB_CONFIG_CAVEAT              18
 416 #define __DRI_ATTRIB_CONFORMANT                 19
 417 #define __DRI_ATTRIB_DOUBLE_BUFFER              20
 418 #define __DRI_ATTRIB_STEREO                     21
 419 #define __DRI_ATTRIB_AUX_BUFFERS                22
 420 #define __DRI_ATTRIB_TRANSPARENT_TYPE           23
 421 #define __DRI_ATTRIB_TRANSPARENT_INDEX_VALUE    24
 422 #define __DRI_ATTRIB_TRANSPARENT_RED_VALUE      25
 423 #define __DRI_ATTRIB_TRANSPARENT_GREEN_VALUE    26
 424 #define __DRI_ATTRIB_TRANSPARENT_BLUE_VALUE     27
 425 #define __DRI_ATTRIB_TRANSPARENT_ALPHA_VALUE    28
 426 #define __DRI_ATTRIB_FLOAT_MODE                 29
 427 #define __DRI_ATTRIB_RED_MASK                   30
 428 #define __DRI_ATTRIB_GREEN_MASK                 31
 429 #define __DRI_ATTRIB_BLUE_MASK                  32
 430 #define __DRI_ATTRIB_ALPHA_MASK                 33
 431 #define __DRI_ATTRIB_MAX_PBUFFER_WIDTH          34
 432 #define __DRI_ATTRIB_MAX_PBUFFER_HEIGHT         35
 433 #define __DRI_ATTRIB_MAX_PBUFFER_PIXELS         36
 434 #define __DRI_ATTRIB_OPTIMAL_PBUFFER_WIDTH      37
 435 #define __DRI_ATTRIB_OPTIMAL_PBUFFER_HEIGHT     38
 436 #define __DRI_ATTRIB_VISUAL_SELECT_GROUP        39
 437 #define __DRI_ATTRIB_SWAP_METHOD                40
 438 #define __DRI_ATTRIB_MAX_SWAP_INTERVAL          41
 439 #define __DRI_ATTRIB_MIN_SWAP_INTERVAL          42
 440 #define __DRI_ATTRIB_BIND_TO_TEXTURE_RGB        43
 441 #define __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA       44
 442 #define __DRI_ATTRIB_BIND_TO_MIPMAP_TEXTURE     45
 443 #define __DRI_ATTRIB_BIND_TO_TEXTURE_TARGETS    46
 444 #define __DRI_ATTRIB_YINVERTED                  47
 445
 446 /* __DRI_ATTRIB_RENDER_TYPE */
 447 #define __DRI_ATTRIB_RGBA_BIT                   0x01
 448 #define __DRI_ATTRIB_COLOR_INDEX_BIT            0x02
 449 #define __DRI_ATTRIB_LUMINANCE_BIT              0x04
 450
 451 /* __DRI_ATTRIB_CONFIG_CAVEAT */
 452 #define __DRI_ATTRIB_SLOW_BIT                   0x01
 453 #define __DRI_ATTRIB_NON_CONFORMANT_CONFIG      0x02
 454
 455 /* __DRI_ATTRIB_TRANSPARENT_TYPE */
 456 #define __DRI_ATTRIB_TRANSPARENT_RGB            0x00
 457 #define __DRI_ATTRIB_TRANSPARENT_INDEX          0x01
 458
 459 /* __DRI_ATTRIB_BIND_TO_TEXTURE_TARGETS  */
 460 #define __DRI_ATTRIB_TEXTURE_1D_BIT             0x01
 461 #define __DRI_ATTRIB_TEXTURE_2D_BIT             0x02
 462 #define __DRI_ATTRIB_TEXTURE_RECTANGLE_BIT      0x04
 463
 464 /**
 465  * This extension defines the core DRI functionality.
 466  */
 467 #define __DRI_CORE "DRI_Core"
 468 #define __DRI_CORE_VERSION 1
 469
 470 struct __DRIcoreExtensionRec {
 471     __DRIextension base;
 472
 473     __DRIscreen *(*createNewScreen)(int screen, int fd,
 474                                     unsigned int sarea_handle,
 475                                     const __DRIextension **extensions,
 476                                     const __DRIconfig ***driverConfigs,
 477                                     void *loaderPrivate);
 478
 479     void (*destroyScreen)(__DRIscreen *screen);
 480
 481     const __DRIextension **(*getExtensions)(__DRIscreen *screen);
 482
 483     int (*getConfigAttrib)(const __DRIconfig *config,
 484                            unsigned int attrib,
 485                            unsigned int *value);
 486
 487     int (*indexConfigAttrib)(const __DRIconfig *config, int index,
 488                              unsigned int *attrib, unsigned int *value);
 489
 490     __DRIdrawable *(*createNewDrawable)(__DRIscreen *screen,
 491                                         const __DRIconfig *config,
 492                                         unsigned int drawable_id,
 493                                         unsigned int head,
 494                                         void *loaderPrivate);
 495
 496     void (*destroyDrawable)(__DRIdrawable *drawable);
 497
 498     void (*swapBuffers)(__DRIdrawable *drawable);
 499
 500     __DRIcontext *(*createNewContext)(__DRIscreen *screen,
 501                                       const __DRIconfig *config,
 502                                       __DRIcontext *shared,
 503                                       void *loaderPrivate);
 504
 505     int (*copyContext)(__DRIcontext *dest,
 506                        __DRIcontext *src,
 507                        unsigned long mask);
 508
 509     void (*destroyContext)(__DRIcontext *context);
 510
 511     int (*bindContext)(__DRIcontext *ctx,
 512                        __DRIdrawable *pdraw,
 513                        __DRIdrawable *pread);
 514
 515     int (*unbindContext)(__DRIcontext *ctx);
 516 };
 517
 518 /**
 519  * Stored version of some component (i.e., server-side DRI module, kernel-side
 520  * DRM, etc.).
 521  *
 522  * \todo
 523  * There are several data structures that explicitly store a major version,
 524  * minor version, and patch level.  These structures should be modified to
 525  * have a \c __DRIversionRec instead.
 526  */
 527 struct __DRIversionRec {
 528     int    major;        /**< Major version number. */
 529     int    minor;        /**< Minor version number. */
 530     int    patch;        /**< Patch-level. */
 531 };
 532
 533 /**
 534  * Framebuffer information record.  Used by libGL to communicate information
 535  * about the framebuffer to the driver's \c __driCreateNewScreen function.
 536  *
 537  * In XFree86, most of this information is derrived from data returned by
 538  * calling \c XF86DRIGetDeviceInfo.
 539  *
 540  * \sa XF86DRIGetDeviceInfo __DRIdisplayRec::createNewScreen
 541  *     __driUtilCreateNewScreen CallCreateNewScreen
 542  *
 543  * \bug This structure could be better named.
 544  */
 545 struct __DRIframebufferRec {
 546     unsigned char *base;    /**< Framebuffer base address in the CPU's
 547                              * address space.  This value is calculated by
 548                              * calling \c drmMap on the framebuffer handle
 549                              * returned by \c XF86DRIGetDeviceInfo (or a
 550                              * similar function).
 551                              */
 552     int size;               /**< Framebuffer size, in bytes. */
 553     int stride;             /**< Number of bytes from one line to the next. */
 554     int width;              /**< Pixel width of the framebuffer. */
 555     int height;             /**< Pixel height of the framebuffer. */
 556     int dev_priv_size;      /**< Size of the driver's dev-priv structure. */
 557     void *dev_priv;         /**< Pointer to the driver's dev-priv structure. */
 558 };
 559
 560
 561 /**
 562  * This extension provides alternative screen, drawable and context
 563  * constructors for legacy DRI functionality.  This is used in
 564  * conjunction with the core extension.
 565  */
 566 #define __DRI_LEGACY "DRI_Legacy"
 567 #define __DRI_LEGACY_VERSION 1
 568
 569 struct __DRIlegacyExtensionRec {
 570     __DRIextension base;
 571
 572     __DRIscreen *(*createNewScreen)(int screen,
 573                                     const __DRIversion *ddx_version,
 574                                     const __DRIversion *dri_version,
 575                                     const __DRIversion *drm_version,
 576                                     const __DRIframebuffer *frame_buffer,
 577                                     void *pSAREA, int fd,
 578                                     const __DRIextension **extensions,
 579                                     const __DRIconfig ***driver_configs,
 580                                     void *loaderPrivate);
 581
 582     __DRIdrawable *(*createNewDrawable)(__DRIscreen *screen,
 583                                         const __DRIconfig *config,
 584                                         drm_drawable_t hwDrawable,
 585                                         int renderType, const int *attrs,
 586                                         void *loaderPrivate);
 587
 588     __DRIcontext *(*createNewContext)(__DRIscreen *screen,
 589                                       const __DRIconfig *config,
 590                                       int render_type,
 591                                       __DRIcontext *shared,
 592                                       drm_context_t hwContext,
 593                                       void *loaderPrivate);
 594 };
 595
 596 /**
 597  * This extension provides alternative screen, drawable and context
 598  * constructors for swrast DRI functionality.  This is used in
 599  * conjunction with the core extension.
 600  */
 601 #define __DRI_SWRAST "DRI_SWRast"
 602 #define __DRI_SWRAST_VERSION 1
 603
 604 struct __DRIswrastExtensionRec {
 605     __DRIextension base;
 606
 607     __DRIscreen *(*createNewScreen)(int screen,
 608                                     const __DRIextension **extensions,
 609                                     const __DRIconfig ***driver_configs,
 610                                     void *loaderPrivate);
 611
 612     __DRIdrawable *(*createNewDrawable)(__DRIscreen *screen,
 613                                         const __DRIconfig *config,
 614                                         void *loaderPrivate);
 615 };
 616
 617 /**
 618  * DRI2 Loader extension.
 619  */
 620 #define __DRI_BUFFER_FRONT_LEFT         0
 621 #define __DRI_BUFFER_BACK_LEFT          1
 622 #define __DRI_BUFFER_FRONT_RIGHT        2
 623 #define __DRI_BUFFER_BACK_RIGHT         3
 624 #define __DRI_BUFFER_DEPTH              4
 625 #define __DRI_BUFFER_STENCIL            5
 626 #define __DRI_BUFFER_ACCUM              6
 627
 628 struct __DRIbufferRec {
 629     unsigned int attachment;
 630     unsigned int name;
 631     unsigned int pitch;
 632     unsigned int cpp;
 633     unsigned int flags;
 634 };
 635
 636 #define __DRI_DRI2_LOADER "DRI_DRI2Loader"
 637 #define __DRI_DRI2_LOADER_VERSION 1
 638 struct __DRIdri2LoaderExtensionRec {
 639     __DRIextension base;
 640
 641     __DRIbuffer *(*getBuffers)(__DRIdrawable *driDrawable,
 642                                int *width, int *height,
 643                                unsigned int *attachments, int count,
 644                                int *out_count, void *loaderPrivate);
 645 };
 646
 647 /**
 648  * This extension provides alternative screen, drawable and context
 649  * constructors for DRI2.
 650  */
 651 #define __DRI_DRI2 "DRI_DRI2"
 652 #define __DRI_DRI2_VERSION 1
 653
 654 struct __DRIdri2ExtensionRec {
 655     __DRIextension base;
 656
 657     __DRIscreen *(*createNewScreen)(int screen, int fd,
 658                                     const __DRIextension **extensions,
 659                                     const __DRIconfig ***driver_configs,
 660                                     void *loaderPrivate);
 661
 662     __DRIdrawable *(*createNewDrawable)(__DRIscreen *screen,
 663                                         const __DRIconfig *config,
 664                                         void *loaderPrivate);
 665
 666     __DRIcontext *(*createNewContext)(__DRIscreen *screen,
 667                                       const __DRIconfig *config,
 668                                       __DRIcontext *shared,
 669                                       void *loaderPrivate);
 670
 671 };
 672
 673 #endif