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 (at) precisioninsight.com> 36 * \author Ian Romanick <idr (at) us.ibm.com> 37 * \author Kristian Hgsberg <krh (at) redhat.com> 38 */ 39 40 #ifndef DRI_INTERFACE_H 41 #define DRI_INTERFACE_H 42 43 /* For archs with no drm.h */ 44 #if !defined(__APPLE__) && !defined(__CYGWIN__) && !defined(__GNU__) 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 typedef struct __DRI2flushExtensionRec __DRI2flushExtension; 82 83 /*@}*/ 84 85 86 /** 87 * Extension struct. Drivers 'inherit' from this struct by embedding 88 * it as the first element in the extension struct. 89 * 90 * We never break API in for a DRI extension. If we need to change 91 * the way things work in a non-backwards compatible manner, we 92 * introduce a new extension. During a transition period, we can 93 * leave both the old and the new extension in the driver, which 94 * allows us to move to the new interface without having to update the 95 * loader(s) in lock step. 96 * 97 * However, we can add entry points to an extension over time as long 98 * as we don't break the old ones. As we add entry points to an 99 * extension, we increase the version number. The corresponding 100 * #define can be used to guard code that accesses the new entry 101 * points at compile time and the version field in the extension 102 * struct can be used at run-time to determine how to use the 103 * extension. 104 */ 105 struct __DRIextensionRec { 106 const char *name; 107 int version; 108 }; 109 110 /** 111 * The first set of extension are the screen extensions, returned by 112 * __DRIcore::getExtensions(). This entry point will return a list of 113 * extensions and the loader can use the ones it knows about by 114 * casting them to more specific extensions and advertising any GLX 115 * extensions the DRI extensions enables. 116 */ 117 118 /** 119 * Used by drivers to indicate support for setting the read drawable. 120 */ 121 #define __DRI_READ_DRAWABLE "DRI_ReadDrawable" 122 #define __DRI_READ_DRAWABLE_VERSION 1 123 124 /** 125 * Used by drivers that implement the GLX_MESA_copy_sub_buffer extension. 126 */ 127 #define __DRI_COPY_SUB_BUFFER "DRI_CopySubBuffer" 128 #define __DRI_COPY_SUB_BUFFER_VERSION 1 129 struct __DRIcopySubBufferExtensionRec { 130 __DRIextension base; 131 void (*copySubBuffer)(__DRIdrawable *drawable, int x, int y, int w, int h); 132 }; 133 134 /** 135 * Used by drivers that implement the GLX_SGI_swap_control or 136 * GLX_MESA_swap_control extension. 137 */ 138 #define __DRI_SWAP_CONTROL "DRI_SwapControl" 139 #define __DRI_SWAP_CONTROL_VERSION 1 140 struct __DRIswapControlExtensionRec { 141 __DRIextension base; 142 void (*setSwapInterval)(__DRIdrawable *drawable, unsigned int inteval); 143 unsigned int (*getSwapInterval)(__DRIdrawable *drawable); 144 }; 145 146 /** 147 * Used by drivers that implement the GLX_MESA_allocate_memory. 148 */ 149 #define __DRI_ALLOCATE "DRI_Allocate" 150 #define __DRI_ALLOCATE_VERSION 1 151 struct __DRIallocateExtensionRec { 152 __DRIextension base; 153 154 void *(*allocateMemory)(__DRIscreen *screen, GLsizei size, 155 GLfloat readfreq, GLfloat writefreq, 156 GLfloat priority); 157 158 void (*freeMemory)(__DRIscreen *screen, GLvoid *pointer); 159 160 GLuint (*memoryOffset)(__DRIscreen *screen, const GLvoid *pointer); 161 }; 162 163 /** 164 * Used by drivers that implement the GLX_MESA_swap_frame_usage extension. 165 */ 166 #define __DRI_FRAME_TRACKING "DRI_FrameTracking" 167 #define __DRI_FRAME_TRACKING_VERSION 1 168 struct __DRIframeTrackingExtensionRec { 169 __DRIextension base; 170 171 /** 172 * Enable or disable frame usage tracking. 173 * 174 * \since Internal API version 20030317. 175 */ 176 int (*frameTracking)(__DRIdrawable *drawable, GLboolean enable); 177 178 /** 179 * Retrieve frame usage information. 180 * 181 * \since Internal API version 20030317. 182 */ 183 int (*queryFrameTracking)(__DRIdrawable *drawable, 184 int64_t * sbc, int64_t * missedFrames, 185 float * lastMissedUsage, float * usage); 186 }; 187 188 189 /** 190 * Used by drivers that implement the GLX_SGI_video_sync extension. 191 */ 192 #define __DRI_MEDIA_STREAM_COUNTER "DRI_MediaStreamCounter" 193 #define __DRI_MEDIA_STREAM_COUNTER_VERSION 1 194 struct __DRImediaStreamCounterExtensionRec { 195 __DRIextension base; 196 197 /** 198 * Wait for the MSC to equal target_msc, or, if that has already passed, 199 * the next time (MSC % divisor) is equal to remainder. If divisor is 200 * zero, the function will return as soon as MSC is greater than or equal 201 * to target_msc. 202 */ 203 int (*waitForMSC)(__DRIdrawable *drawable, 204 int64_t target_msc, int64_t divisor, int64_t remainder, 205 int64_t * msc, int64_t * sbc); 206 207 /** 208 * Get the number of vertical refreshes since some point in time before 209 * this function was first called (i.e., system start up). 210 */ 211 int (*getDrawableMSC)(__DRIscreen *screen, __DRIdrawable *drawable, 212 int64_t *msc); 213 }; 214 215 216 #define __DRI_TEX_OFFSET "DRI_TexOffset" 217 #define __DRI_TEX_OFFSET_VERSION 1 218 struct __DRItexOffsetExtensionRec { 219 __DRIextension base; 220 221 /** 222 * Method to override base texture image with a driver specific 'offset'. 223 * The depth passed in allows e.g. to ignore the alpha channel of texture 224 * images where the non-alpha components don't occupy a whole texel. 225 * 226 * For GLX_EXT_texture_from_pixmap with AIGLX. 227 */ 228 void (*setTexOffset)(__DRIcontext *pDRICtx, GLint texname, 229 unsigned long long offset, GLint depth, GLuint pitch); 230 }; 231 232 233 #define __DRI_TEX_BUFFER "DRI_TexBuffer" 234 #define __DRI_TEX_BUFFER_VERSION 2 235 struct __DRItexBufferExtensionRec { 236 __DRIextension base; 237 238 /** 239 * Method to override base texture image with the contents of a 240 * __DRIdrawable. 241 * 242 * For GLX_EXT_texture_from_pixmap with AIGLX. Deprecated in favor of 243 * setTexBuffer2 in version 2 of this interface 244 */ 245 void (*setTexBuffer)(__DRIcontext *pDRICtx, 246 GLint target, 247 __DRIdrawable *pDraw); 248 249 /** 250 * Method to override base texture image with the contents of a 251 * __DRIdrawable, including the required texture format attribute. 252 * 253 * For GLX_EXT_texture_from_pixmap with AIGLX. 254 */ 255 void (*setTexBuffer2)(__DRIcontext *pDRICtx, 256 GLint target, 257 GLint format, 258 __DRIdrawable *pDraw); 259 }; 260 261 /** 262 * Used by drivers that implement DRI2 263 */ 264 #define __DRI2_FLUSH "DRI2_Flush" 265 #define __DRI2_FLUSH_VERSION 1 266 struct __DRI2flushExtensionRec { 267 __DRIextension base; 268 void (*flush)(__DRIdrawable *drawable); 269 }; 270 271 272 /** 273 * XML document describing the configuration options supported by the 274 * driver. 275 */ 276 extern const char __driConfigOptions[]; 277 278 /*@}*/ 279 280 /** 281 * The following extensions describe loader features that the DRI 282 * driver can make use of. Some of these are mandatory, such as the 283 * getDrawableInfo extension for DRI and the DRI Loader extensions for 284 * DRI2, while others are optional, and if present allow the driver to 285 * expose certain features. The loader pass in a NULL terminated 286 * array of these extensions to the driver in the createNewScreen 287 * constructor. 288 */ 289 290 typedef struct __DRIgetDrawableInfoExtensionRec __DRIgetDrawableInfoExtension; 291 typedef struct __DRIsystemTimeExtensionRec __DRIsystemTimeExtension; 292 typedef struct __DRIdamageExtensionRec __DRIdamageExtension; 293 typedef struct __DRIloaderExtensionRec __DRIloaderExtension; 294 typedef struct __DRIswrastLoaderExtensionRec __DRIswrastLoaderExtension; 295 296 297 /** 298 * Callback to getDrawableInfo protocol 299 */ 300 #define __DRI_GET_DRAWABLE_INFO "DRI_GetDrawableInfo" 301 #define __DRI_GET_DRAWABLE_INFO_VERSION 1 302 struct __DRIgetDrawableInfoExtensionRec { 303 __DRIextension base; 304 305 /** 306 * This function is used to get information about the position, size, and 307 * clip rects of a drawable. 308 */ 309 GLboolean (* getDrawableInfo) ( __DRIdrawable *drawable, 310 unsigned int * index, unsigned int * stamp, 311 int * x, int * y, int * width, int * height, 312 int * numClipRects, drm_clip_rect_t ** pClipRects, 313 int * backX, int * backY, 314 int * numBackClipRects, drm_clip_rect_t ** pBackClipRects, 315 void *loaderPrivate); 316 }; 317 318 /** 319 * Callback to get system time for media stream counter extensions. 320 */ 321 #define __DRI_SYSTEM_TIME "DRI_SystemTime" 322 #define __DRI_SYSTEM_TIME_VERSION 1 323 struct __DRIsystemTimeExtensionRec { 324 __DRIextension base; 325 326 /** 327 * Get the 64-bit unadjusted system time (UST). 328 */ 329 int (*getUST)(int64_t * ust); 330 331 /** 332 * Get the media stream counter (MSC) rate. 333 * 334 * Matching the definition in GLX_OML_sync_control, this function returns 335 * the rate of the "media stream counter". In practical terms, this is 336 * the frame refresh rate of the display. 337 */ 338 GLboolean (*getMSCRate)(__DRIdrawable *draw, 339 int32_t * numerator, int32_t * denominator, 340 void *loaderPrivate); 341 }; 342 343 /** 344 * Damage reporting 345 */ 346 #define __DRI_DAMAGE "DRI_Damage" 347 #define __DRI_DAMAGE_VERSION 1 348 struct __DRIdamageExtensionRec { 349 __DRIextension base; 350 351 /** 352 * Reports areas of the given drawable which have been modified by the 353 * driver. 354 * 355 * \param drawable which the drawing was done to. 356 * \param rects rectangles affected, with the drawable origin as the 357 * origin. 358 * \param x X offset of the drawable within the screen (used in the 359 * front_buffer case) 360 * \param y Y offset of the drawable within the screen. 361 * \param front_buffer boolean flag for whether the drawing to the 362 * drawable was actually done directly to the front buffer (instead 363 * of backing storage, for example) 364 * \param loaderPrivate the data passed in at createNewDrawable time 365 */ 366 void (*reportDamage)(__DRIdrawable *draw, 367 int x, int y, 368 drm_clip_rect_t *rects, int num_rects, 369 GLboolean front_buffer, 370 void *loaderPrivate); 371 }; 372 373 #define __DRI_SWRAST_IMAGE_OP_DRAW 1 374 #define __DRI_SWRAST_IMAGE_OP_CLEAR 2 375 #define __DRI_SWRAST_IMAGE_OP_SWAP 3 376 377 /** 378 * SWRast Loader extension. 379 */ 380 #define __DRI_SWRAST_LOADER "DRI_SWRastLoader" 381 #define __DRI_SWRAST_LOADER_VERSION 1 382 struct __DRIswrastLoaderExtensionRec { 383 __DRIextension base; 384 385 /* 386 * Drawable position and size 387 */ 388 void (*getDrawableInfo)(__DRIdrawable *drawable, 389 int *x, int *y, int *width, int *height, 390 void *loaderPrivate); 391 392 /** 393 * Put image to drawable 394 */ 395 void (*putImage)(__DRIdrawable *drawable, int op, 396 int x, int y, int width, int height, char *data, 397 void *loaderPrivate); 398 399 /** 400 * Get image from drawable 401 */ 402 void (*getImage)(__DRIdrawable *drawable, 403 int x, int y, int width, int height, char *data, 404 void *loaderPrivate); 405 }; 406 407 /** 408 * The remaining extensions describe driver extensions, immediately 409 * available interfaces provided by the driver. To start using the 410 * driver, dlsym() for the __DRI_DRIVER_EXTENSIONS symbol and look for 411 * the extension you need in the array. 412 */ 413 #define __DRI_DRIVER_EXTENSIONS "__driDriverExtensions" 414 415 /** 416 * Tokens for __DRIconfig attribs. A number of attributes defined by 417 * GLX or EGL standards are not in the table, as they must be provided 418 * by the loader. For example, FBConfig ID or visual ID, drawable type. 419 */ 420 421 #define __DRI_ATTRIB_BUFFER_SIZE 1 422 #define __DRI_ATTRIB_LEVEL 2 423 #define __DRI_ATTRIB_RED_SIZE 3 424 #define __DRI_ATTRIB_GREEN_SIZE 4 425 #define __DRI_ATTRIB_BLUE_SIZE 5 426 #define __DRI_ATTRIB_LUMINANCE_SIZE 6 427 #define __DRI_ATTRIB_ALPHA_SIZE 7 428 #define __DRI_ATTRIB_ALPHA_MASK_SIZE 8 429 #define __DRI_ATTRIB_DEPTH_SIZE 9 430 #define __DRI_ATTRIB_STENCIL_SIZE 10 431 #define __DRI_ATTRIB_ACCUM_RED_SIZE 11 432 #define __DRI_ATTRIB_ACCUM_GREEN_SIZE 12 433 #define __DRI_ATTRIB_ACCUM_BLUE_SIZE 13 434 #define __DRI_ATTRIB_ACCUM_ALPHA_SIZE 14 435 #define __DRI_ATTRIB_SAMPLE_BUFFERS 15 436 #define __DRI_ATTRIB_SAMPLES 16 437 #define __DRI_ATTRIB_RENDER_TYPE 17 438 #define __DRI_ATTRIB_CONFIG_CAVEAT 18 439 #define __DRI_ATTRIB_CONFORMANT 19 440 #define __DRI_ATTRIB_DOUBLE_BUFFER 20 441 #define __DRI_ATTRIB_STEREO 21 442 #define __DRI_ATTRIB_AUX_BUFFERS 22 443 #define __DRI_ATTRIB_TRANSPARENT_TYPE 23 444 #define __DRI_ATTRIB_TRANSPARENT_INDEX_VALUE 24 445 #define __DRI_ATTRIB_TRANSPARENT_RED_VALUE 25 446 #define __DRI_ATTRIB_TRANSPARENT_GREEN_VALUE 26 447 #define __DRI_ATTRIB_TRANSPARENT_BLUE_VALUE 27 448 #define __DRI_ATTRIB_TRANSPARENT_ALPHA_VALUE 28 449 #define __DRI_ATTRIB_FLOAT_MODE 29 450 #define __DRI_ATTRIB_RED_MASK 30 451 #define __DRI_ATTRIB_GREEN_MASK 31 452 #define __DRI_ATTRIB_BLUE_MASK 32 453 #define __DRI_ATTRIB_ALPHA_MASK 33 454 #define __DRI_ATTRIB_MAX_PBUFFER_WIDTH 34 455 #define __DRI_ATTRIB_MAX_PBUFFER_HEIGHT 35 456 #define __DRI_ATTRIB_MAX_PBUFFER_PIXELS 36 457 #define __DRI_ATTRIB_OPTIMAL_PBUFFER_WIDTH 37 458 #define __DRI_ATTRIB_OPTIMAL_PBUFFER_HEIGHT 38 459 #define __DRI_ATTRIB_VISUAL_SELECT_GROUP 39 460 #define __DRI_ATTRIB_SWAP_METHOD 40 461 #define __DRI_ATTRIB_MAX_SWAP_INTERVAL 41 462 #define __DRI_ATTRIB_MIN_SWAP_INTERVAL 42 463 #define __DRI_ATTRIB_BIND_TO_TEXTURE_RGB 43 464 #define __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA 44 465 #define __DRI_ATTRIB_BIND_TO_MIPMAP_TEXTURE 45 466 #define __DRI_ATTRIB_BIND_TO_TEXTURE_TARGETS 46 467 #define __DRI_ATTRIB_YINVERTED 47 468 469 /* __DRI_ATTRIB_RENDER_TYPE */ 470 #define __DRI_ATTRIB_RGBA_BIT 0x01 471 #define __DRI_ATTRIB_COLOR_INDEX_BIT 0x02 472 #define __DRI_ATTRIB_LUMINANCE_BIT 0x04 473 474 /* __DRI_ATTRIB_CONFIG_CAVEAT */ 475 #define __DRI_ATTRIB_SLOW_BIT 0x01 476 #define __DRI_ATTRIB_NON_CONFORMANT_CONFIG 0x02 477 478 /* __DRI_ATTRIB_TRANSPARENT_TYPE */ 479 #define __DRI_ATTRIB_TRANSPARENT_RGB 0x00 480 #define __DRI_ATTRIB_TRANSPARENT_INDEX 0x01 481 482 /* __DRI_ATTRIB_BIND_TO_TEXTURE_TARGETS */ 483 #define __DRI_ATTRIB_TEXTURE_1D_BIT 0x01 484 #define __DRI_ATTRIB_TEXTURE_2D_BIT 0x02 485 #define __DRI_ATTRIB_TEXTURE_RECTANGLE_BIT 0x04 486 487 /** 488 * This extension defines the core DRI functionality. 489 */ 490 #define __DRI_CORE "DRI_Core" 491 #define __DRI_CORE_VERSION 1 492 493 struct __DRIcoreExtensionRec { 494 __DRIextension base; 495 496 __DRIscreen *(*createNewScreen)(int screen, int fd, 497 unsigned int sarea_handle, 498 const __DRIextension **extensions, 499 const __DRIconfig ***driverConfigs, 500 void *loaderPrivate); 501 502 void (*destroyScreen)(__DRIscreen *screen); 503 504 const __DRIextension **(*getExtensions)(__DRIscreen *screen); 505 506 int (*getConfigAttrib)(const __DRIconfig *config, 507 unsigned int attrib, 508 unsigned int *value); 509 510 int (*indexConfigAttrib)(const __DRIconfig *config, int index, 511 unsigned int *attrib, unsigned int *value); 512 513 __DRIdrawable *(*createNewDrawable)(__DRIscreen *screen, 514 const __DRIconfig *config, 515 unsigned int drawable_id, 516 unsigned int head, 517 void *loaderPrivate); 518 519 void (*destroyDrawable)(__DRIdrawable *drawable); 520 521 void (*swapBuffers)(__DRIdrawable *drawable); 522 523 __DRIcontext *(*createNewContext)(__DRIscreen *screen, 524 const __DRIconfig *config, 525 __DRIcontext *shared, 526 void *loaderPrivate); 527 528 int (*copyContext)(__DRIcontext *dest, 529 __DRIcontext *src, 530 unsigned long mask); 531 532 void (*destroyContext)(__DRIcontext *context); 533 534 int (*bindContext)(__DRIcontext *ctx, 535 __DRIdrawable *pdraw, 536 __DRIdrawable *pread); 537 538 int (*unbindContext)(__DRIcontext *ctx); 539 }; 540 541 /** 542 * Stored version of some component (i.e., server-side DRI module, kernel-side 543 * DRM, etc.). 544 * 545 * \todo 546 * There are several data structures that explicitly store a major version, 547 * minor version, and patch level. These structures should be modified to 548 * have a \c __DRIversionRec instead. 549 */ 550 struct __DRIversionRec { 551 int major; /**< Major version number. */ 552 int minor; /**< Minor version number. */ 553 int patch; /**< Patch-level. */ 554 }; 555 556 /** 557 * Framebuffer information record. Used by libGL to communicate information 558 * about the framebuffer to the driver's \c __driCreateNewScreen function. 559 * 560 * In XFree86, most of this information is derrived from data returned by 561 * calling \c XF86DRIGetDeviceInfo. 562 * 563 * \sa XF86DRIGetDeviceInfo __DRIdisplayRec::createNewScreen 564 * __driUtilCreateNewScreen CallCreateNewScreen 565 * 566 * \bug This structure could be better named. 567 */ 568 struct __DRIframebufferRec { 569 unsigned char *base; /**< Framebuffer base address in the CPU's 570 * address space. This value is calculated by 571 * calling \c drmMap on the framebuffer handle 572 * returned by \c XF86DRIGetDeviceInfo (or a 573 * similar function). 574 */ 575 int size; /**< Framebuffer size, in bytes. */ 576 int stride; /**< Number of bytes from one line to the next. */ 577 int width; /**< Pixel width of the framebuffer. */ 578 int height; /**< Pixel height of the framebuffer. */ 579 int dev_priv_size; /**< Size of the driver's dev-priv structure. */ 580 void *dev_priv; /**< Pointer to the driver's dev-priv structure. */ 581 }; 582 583 584 /** 585 * This extension provides alternative screen, drawable and context 586 * constructors for legacy DRI functionality. This is used in 587 * conjunction with the core extension. 588 */ 589 #define __DRI_LEGACY "DRI_Legacy" 590 #define __DRI_LEGACY_VERSION 1 591 592 struct __DRIlegacyExtensionRec { 593 __DRIextension base; 594 595 __DRIscreen *(*createNewScreen)(int screen, 596 const __DRIversion *ddx_version, 597 const __DRIversion *dri_version, 598 const __DRIversion *drm_version, 599 const __DRIframebuffer *frame_buffer, 600 void *pSAREA, int fd, 601 const __DRIextension **extensions, 602 const __DRIconfig ***driver_configs, 603 void *loaderPrivate); 604 605 __DRIdrawable *(*createNewDrawable)(__DRIscreen *screen, 606 const __DRIconfig *config, 607 drm_drawable_t hwDrawable, 608 int renderType, const int *attrs, 609 void *loaderPrivate); 610 611 __DRIcontext *(*createNewContext)(__DRIscreen *screen, 612 const __DRIconfig *config, 613 int render_type, 614 __DRIcontext *shared, 615 drm_context_t hwContext, 616 void *loaderPrivate); 617 }; 618 619 /** 620 * This extension provides alternative screen, drawable and context 621 * constructors for swrast DRI functionality. This is used in 622 * conjunction with the core extension. 623 */ 624 #define __DRI_SWRAST "DRI_SWRast" 625 #define __DRI_SWRAST_VERSION 1 626 627 struct __DRIswrastExtensionRec { 628 __DRIextension base; 629 630 __DRIscreen *(*createNewScreen)(int screen, 631 const __DRIextension **extensions, 632 const __DRIconfig ***driver_configs, 633 void *loaderPrivate); 634 635 __DRIdrawable *(*createNewDrawable)(__DRIscreen *screen, 636 const __DRIconfig *config, 637 void *loaderPrivate); 638 }; 639 640 /** 641 * DRI2 Loader extension. 642 */ 643 #define __DRI_BUFFER_FRONT_LEFT 0 644 #define __DRI_BUFFER_BACK_LEFT 1 645 #define __DRI_BUFFER_FRONT_RIGHT 2 646 #define __DRI_BUFFER_BACK_RIGHT 3 647 #define __DRI_BUFFER_DEPTH 4 648 #define __DRI_BUFFER_STENCIL 5 649 #define __DRI_BUFFER_ACCUM 6 650 #define __DRI_BUFFER_FAKE_FRONT_LEFT 7 651 #define __DRI_BUFFER_FAKE_FRONT_RIGHT 8 652 #define __DRI_BUFFER_DEPTH_STENCIL 9 /**< Only available with DRI2 1.1 */ 653 654 struct __DRIbufferRec { 655 unsigned int attachment; 656 unsigned int name; 657 unsigned int pitch; 658 unsigned int cpp; 659 unsigned int flags; 660 }; 661 662 #define __DRI_DRI2_LOADER "DRI_DRI2Loader" 663 #define __DRI_DRI2_LOADER_VERSION 3 664 struct __DRIdri2LoaderExtensionRec { 665 __DRIextension base; 666 667 __DRIbuffer *(*getBuffers)(__DRIdrawable *driDrawable, 668 int *width, int *height, 669 unsigned int *attachments, int count, 670 int *out_count, void *loaderPrivate); 671 672 /** 673 * Flush pending front-buffer rendering 674 * 675 * Any rendering that has been performed to the 676 * \c __DRI_BUFFER_FAKE_FRONT_LEFT will be flushed to the 677 * \c __DRI_BUFFER_FRONT_LEFT. 678 * 679 * \param driDrawable Drawable whose front-buffer is to be flushed 680 * \param loaderPrivate Loader's private data that was previously passed 681 * into __DRIdri2ExtensionRec::createNewDrawable 682 */ 683 void (*flushFrontBuffer)(__DRIdrawable *driDrawable, void *loaderPrivate); 684 685 686 /** 687 * Get list of buffers from the server 688 * 689 * Gets a list of buffer for the specified set of attachments. Unlike 690 * \c ::getBuffers, this function takes a list of attachments paired with 691 * opaque \c unsigned \c int value describing the format of the buffer. 692 * It is the responsibility of the caller to know what the service that 693 * allocates the buffers will expect to receive for the format. 694 * 695 * \param driDrawable Drawable whose buffers are being queried. 696 * \param width Output where the width of the buffers is stored. 697 * \param height Output where the height of the buffers is stored. 698 * \param attachments List of pairs of attachment ID and opaque format 699 * requested for the drawable. 700 * \param count Number of attachment / format pairs stored in 701 * \c attachments. 702 * \param loaderPrivate Loader's private data that was previously passed 703 * into __DRIdri2ExtensionRec::createNewDrawable. 704 */ 705 __DRIbuffer *(*getBuffersWithFormat)(__DRIdrawable *driDrawable, 706 int *width, int *height, 707 unsigned int *attachments, int count, 708 int *out_count, void *loaderPrivate); 709 }; 710 711 /** 712 * This extension provides alternative screen, drawable and context 713 * constructors for DRI2. 714 */ 715 #define __DRI_DRI2 "DRI_DRI2" 716 #define __DRI_DRI2_VERSION 1 717 718 struct __DRIdri2ExtensionRec { 719 __DRIextension base; 720 721 __DRIscreen *(*createNewScreen)(int screen, int fd, 722 const __DRIextension **extensions, 723 const __DRIconfig ***driver_configs, 724 void *loaderPrivate); 725 726 __DRIdrawable *(*createNewDrawable)(__DRIscreen *screen, 727 const __DRIconfig *config, 728 void *loaderPrivate); 729 730 __DRIcontext *(*createNewContext)(__DRIscreen *screen, 731 const __DRIconfig *config, 732 __DRIcontext *shared, 733 void *loaderPrivate); 734 735 }; 736 737 #endif 738
