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#include <stdint.h> 44 45/** 46 * \name DRI interface structures 47 * 48 * The following structures define the interface between the GLX client 49 * side library and the DRI (direct rendering infrastructure). 50 */ 51/*@{*/ 52typedef struct __DRIdisplayRec __DRIdisplay; 53typedef struct __DRIscreenRec __DRIscreen; 54typedef struct __DRIcontextRec __DRIcontext; 55typedef struct __DRIdrawableRec __DRIdrawable; 56typedef struct __DRIconfigRec __DRIconfig; 57typedef struct __DRIframebufferRec __DRIframebuffer; 58typedef struct __DRIversionRec __DRIversion; 59 60typedef struct __DRIcoreExtensionRec __DRIcoreExtension; 61typedef struct __DRIextensionRec __DRIextension; 62typedef struct __DRIcopySubBufferExtensionRec __DRIcopySubBufferExtension; 63typedef struct __DRIswapControlExtensionRec __DRIswapControlExtension; 64typedef struct __DRIframeTrackingExtensionRec __DRIframeTrackingExtension; 65typedef struct __DRImediaStreamCounterExtensionRec __DRImediaStreamCounterExtension; 66typedef struct __DRItexOffsetExtensionRec __DRItexOffsetExtension; 67typedef struct __DRItexBufferExtensionRec __DRItexBufferExtension; 68typedef struct __DRIlegacyExtensionRec __DRIlegacyExtension; 69typedef struct __DRIswrastExtensionRec __DRIswrastExtension; 70typedef struct __DRIbufferRec __DRIbuffer; 71typedef struct __DRIdri2ExtensionRec __DRIdri2Extension; 72typedef struct __DRIdri2LoaderExtensionRec __DRIdri2LoaderExtension; 73typedef struct __DRI2flushExtensionRec __DRI2flushExtension; 74typedef struct __DRI2throttleExtensionRec __DRI2throttleExtension; 75typedef struct __DRI2fenceExtensionRec __DRI2fenceExtension; 76typedef struct __DRI2interopExtensionRec __DRI2interopExtension; 77typedef struct __DRI2blobExtensionRec __DRI2blobExtension; 78typedef struct __DRI2bufferDamageExtensionRec __DRI2bufferDamageExtension; 79 80typedef struct __DRIimageLoaderExtensionRec __DRIimageLoaderExtension; 81typedef struct __DRIimageDriverExtensionRec __DRIimageDriverExtension; 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 */ 105struct __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 129struct __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 140struct __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_SGI_video_sync extension. 148 */ 149#define __DRI_MEDIA_STREAM_COUNTER "DRI_MediaStreamCounter" 150#define __DRI_MEDIA_STREAM_COUNTER_VERSION 1 151struct __DRImediaStreamCounterExtensionRec { 152 __DRIextension base; 153 154 /** 155 * Wait for the MSC to equal target_msc, or, if that has already passed, 156 * the next time (MSC % divisor) is equal to remainder. If divisor is 157 * zero, the function will return as soon as MSC is greater than or equal 158 * to target_msc. 159 */ 160 int (*waitForMSC)(__DRIdrawable *drawable, 161 int64_t target_msc, int64_t divisor, int64_t remainder, 162 int64_t * msc, int64_t * sbc); 163 164 /** 165 * Get the number of vertical refreshes since some point in time before 166 * this function was first called (i.e., system start up). 167 */ 168 int (*getDrawableMSC)(__DRIscreen *screen, __DRIdrawable *drawable, 169 int64_t *msc); 170}; 171 172/* Valid values for format in the setTexBuffer2 function below. These 173 * values match the GLX tokens for compatibility reasons, but we 174 * define them here since the DRI interface can't depend on GLX. */ 175#define __DRI_TEXTURE_FORMAT_NONE 0x20D8 176#define __DRI_TEXTURE_FORMAT_RGB 0x20D9 177#define __DRI_TEXTURE_FORMAT_RGBA 0x20DA 178 179#define __DRI_TEX_BUFFER "DRI_TexBuffer" 180#define __DRI_TEX_BUFFER_VERSION 3 181struct __DRItexBufferExtensionRec { 182 __DRIextension base; 183 184 /** 185 * Method to override base texture image with the contents of a 186 * __DRIdrawable. 187 * 188 * For GLX_EXT_texture_from_pixmap with AIGLX. Deprecated in favor of 189 * setTexBuffer2 in version 2 of this interface 190 */ 191 void (*setTexBuffer)(__DRIcontext *pDRICtx, 192 int target, 193 __DRIdrawable *pDraw); 194 195 /** 196 * Method to override base texture image with the contents of a 197 * __DRIdrawable, including the required texture format attribute. 198 * 199 * For GLX_EXT_texture_from_pixmap with AIGLX. 200 * 201 * \since 2 202 */ 203 void (*setTexBuffer2)(__DRIcontext *pDRICtx, 204 int target, 205 int format, 206 __DRIdrawable *pDraw); 207 /** 208 * Method to release texture buffer in case some special platform 209 * need this. 210 * 211 * For GLX_EXT_texture_from_pixmap with AIGLX. 212 * 213 * \since 3 214 */ 215 void (*releaseTexBuffer)(__DRIcontext *pDRICtx, 216 int target, 217 __DRIdrawable *pDraw); 218}; 219 220/** 221 * Used by drivers that implement DRI2 222 */ 223#define __DRI2_FLUSH "DRI2_Flush" 224#define __DRI2_FLUSH_VERSION 4 225 226#define __DRI2_FLUSH_DRAWABLE (1 << 0) /* the drawable should be flushed. */ 227#define __DRI2_FLUSH_CONTEXT (1 << 1) /* glFlush should be called */ 228#define __DRI2_FLUSH_INVALIDATE_ANCILLARY (1 << 2) 229 230enum __DRI2throttleReason { 231 __DRI2_THROTTLE_SWAPBUFFER, 232 __DRI2_THROTTLE_COPYSUBBUFFER, 233 __DRI2_THROTTLE_FLUSHFRONT 234}; 235 236struct __DRI2flushExtensionRec { 237 __DRIextension base; 238 void (*flush)(__DRIdrawable *drawable); 239 240 /** 241 * Ask the driver to call getBuffers/getBuffersWithFormat before 242 * it starts rendering again. 243 * 244 * \param drawable the drawable to invalidate 245 * 246 * \since 3 247 */ 248 void (*invalidate)(__DRIdrawable *drawable); 249 250 /** 251 * This function reduces the number of flushes in the driver by combining 252 * several operations into one call. 253 * 254 * It can: 255 * - throttle 256 * - flush a drawable 257 * - flush a context 258 * 259 * \param context the context 260 * \param drawable the drawable to flush 261 * \param flags a combination of _DRI2_FLUSH_xxx flags 262 * \param throttle_reason the reason for throttling, 0 = no throttling 263 * 264 * \since 4 265 */ 266 void (*flush_with_flags)(__DRIcontext *ctx, 267 __DRIdrawable *drawable, 268 unsigned flags, 269 enum __DRI2throttleReason throttle_reason); 270}; 271 272 273/** 274 * Extension that the driver uses to request 275 * throttle callbacks. 276 */ 277 278#define __DRI2_THROTTLE "DRI2_Throttle" 279#define __DRI2_THROTTLE_VERSION 1 280 281struct __DRI2throttleExtensionRec { 282 __DRIextension base; 283 void (*throttle)(__DRIcontext *ctx, 284 __DRIdrawable *drawable, 285 enum __DRI2throttleReason reason); 286}; 287 288/** 289 * Extension for EGL_ANDROID_blob_cache 290 */ 291 292#define __DRI2_BLOB "DRI2_Blob" 293#define __DRI2_BLOB_VERSION 1 294 295typedef void 296(*__DRIblobCacheSet) (const void *key, signed long keySize, 297 const void *value, signed long valueSize); 298 299typedef signed long 300(*__DRIblobCacheGet) (const void *key, signed long keySize, 301 void *value, signed long valueSize); 302 303struct __DRI2blobExtensionRec { 304 __DRIextension base; 305 306 /** 307 * Set cache functions for setting and getting cache entries. 308 */ 309 void (*set_cache_funcs) (__DRIscreen *screen, 310 __DRIblobCacheSet set, __DRIblobCacheGet get); 311}; 312 313/** 314 * Extension for fences / synchronization objects. 315 */ 316 317#define __DRI2_FENCE "DRI2_Fence" 318#define __DRI2_FENCE_VERSION 2 319 320#define __DRI2_FENCE_TIMEOUT_INFINITE 0xffffffffffffffffull 321 322#define __DRI2_FENCE_FLAG_FLUSH_COMMANDS (1 << 0) 323 324/** 325 * \name Capabilities that might be returned by __DRI2fenceExtensionRec::get_capabilities 326 */ 327/*@{*/ 328#define __DRI_FENCE_CAP_NATIVE_FD 1 329/*@}*/ 330 331struct __DRI2fenceExtensionRec { 332 __DRIextension base; 333 334 /** 335 * Create and insert a fence into the command stream of the context. 336 */ 337 void *(*create_fence)(__DRIcontext *ctx); 338 339 /** 340 * Get a fence associated with the OpenCL event object. 341 * This can be NULL, meaning that OpenCL interoperability is not supported. 342 */ 343 void *(*get_fence_from_cl_event)(__DRIscreen *screen, intptr_t cl_event); 344 345 /** 346 * Destroy a fence. 347 */ 348 void (*destroy_fence)(__DRIscreen *screen, void *fence); 349 350 /** 351 * This function waits and doesn't return until the fence is signalled 352 * or the timeout expires. It returns true if the fence has been signaled. 353 * 354 * \param ctx the context where commands are flushed 355 * \param fence the fence 356 * \param flags a combination of __DRI2_FENCE_FLAG_xxx flags 357 * \param timeout the timeout in ns or __DRI2_FENCE_TIMEOUT_INFINITE 358 */ 359 unsigned char (*client_wait_sync)(__DRIcontext *ctx, void *fence, 360 unsigned flags, uint64_t timeout); 361 362 /** 363 * This function enqueues a wait command into the command stream of 364 * the context and then returns. When the execution reaches the wait 365 * command, no further execution will be done in the context until 366 * the fence is signaled. This is a no-op if the device doesn't support 367 * parallel execution of contexts. 368 * 369 * \param ctx the context where the waiting is done 370 * \param fence the fence 371 * \param flags a combination of __DRI2_FENCE_FLAG_xxx flags that make 372 * sense with this function (right now there are none) 373 */ 374 void (*server_wait_sync)(__DRIcontext *ctx, void *fence, unsigned flags); 375 376 /** 377 * Query for general capabilities of the driver that concern fences. 378 * Returns a bitmask of __DRI_FENCE_CAP_x 379 * 380 * \since 2 381 */ 382 unsigned (*get_capabilities)(__DRIscreen *screen); 383 384 /** 385 * Create an fd (file descriptor) associated fence. If the fence fd 386 * is -1, this behaves similarly to create_fence() except that when 387 * rendering is flushed the driver creates a fence fd. Otherwise, 388 * the driver wraps an existing fence fd. 389 * 390 * This is used to implement the EGL_ANDROID_native_fence_sync extension. 391 * 392 * \since 2 393 * 394 * \param ctx the context associated with the fence 395 * \param fd the fence fd or -1 396 */ 397 void *(*create_fence_fd)(__DRIcontext *ctx, int fd); 398 399 /** 400 * For fences created with create_fence_fd(), after rendering is flushed, 401 * this retrieves the native fence fd. Caller takes ownership of the 402 * fd and will close() it when it is no longer needed. 403 * 404 * \since 2 405 * 406 * \param screen the screen associated with the fence 407 * \param fence the fence 408 */ 409 int (*get_fence_fd)(__DRIscreen *screen, void *fence); 410}; 411 412 413/** 414 * Extension for API interop. 415 * See GL/mesa_glinterop.h. 416 */ 417 418#define __DRI2_INTEROP "DRI2_Interop" 419#define __DRI2_INTEROP_VERSION 1 420 421struct mesa_glinterop_device_info; 422struct mesa_glinterop_export_in; 423struct mesa_glinterop_export_out; 424 425struct __DRI2interopExtensionRec { 426 __DRIextension base; 427 428 /** Same as MesaGLInterop*QueryDeviceInfo. */ 429 int (*query_device_info)(__DRIcontext *ctx, 430 struct mesa_glinterop_device_info *out); 431 432 /** Same as MesaGLInterop*ExportObject. */ 433 int (*export_object)(__DRIcontext *ctx, 434 struct mesa_glinterop_export_in *in, 435 struct mesa_glinterop_export_out *out); 436}; 437 438 439/** 440 * Extension for limiting window system back buffer rendering to user-defined 441 * scissor region. 442 */ 443 444#define __DRI2_BUFFER_DAMAGE "DRI2_BufferDamage" 445#define __DRI2_BUFFER_DAMAGE_VERSION 1 446 447struct __DRI2bufferDamageExtensionRec { 448 __DRIextension base; 449 450 /** 451 * Provides an array of rectangles representing an overriding scissor region 452 * for rendering operations performed to the specified drawable. These 453 * rectangles do not replace client API scissor regions or draw 454 * co-ordinates, but instead inform the driver of the overall bounds of all 455 * operations which will be issued before the next flush. 456 * 457 * Any rendering operations writing pixels outside this region to the 458 * drawable will have an undefined effect on the entire drawable. 459 * 460 * This entrypoint may only be called after the drawable has either been 461 * newly created or flushed, and before any rendering operations which write 462 * pixels to the drawable. Calling this entrypoint at any other time will 463 * have an undefined effect on the entire drawable. 464 * 465 * Calling this entrypoint with @nrects 0 and @rects NULL will reset the 466 * region to the buffer's full size. This entrypoint may be called once to 467 * reset the region, followed by a second call with a populated region, 468 * before a rendering call is made. 469 * 470 * Used to implement EGL_KHR_partial_update. 471 * 472 * \param drawable affected drawable 473 * \param nrects number of rectangles provided 474 * \param rects the array of rectangles, lower-left origin 475 */ 476 void (*set_damage_region)(__DRIdrawable *drawable, unsigned int nrects, 477 int *rects); 478}; 479 480/*@}*/ 481 482/** 483 * The following extensions describe loader features that the DRI 484 * driver can make use of. Some of these are mandatory, such as the 485 * getDrawableInfo extension for DRI and the DRI Loader extensions for 486 * DRI2, while others are optional, and if present allow the driver to 487 * expose certain features. The loader pass in a NULL terminated 488 * array of these extensions to the driver in the createNewScreen 489 * constructor. 490 */ 491 492typedef struct __DRIgetDrawableInfoExtensionRec __DRIgetDrawableInfoExtension; 493typedef struct __DRIsystemTimeExtensionRec __DRIsystemTimeExtension; 494typedef struct __DRIdamageExtensionRec __DRIdamageExtension; 495typedef struct __DRIloaderExtensionRec __DRIloaderExtension; 496typedef struct __DRIswrastLoaderExtensionRec __DRIswrastLoaderExtension; 497 498/** 499 * Callback to get system time for media stream counter extensions. 500 */ 501#define __DRI_SYSTEM_TIME "DRI_SystemTime" 502#define __DRI_SYSTEM_TIME_VERSION 1 503struct __DRIsystemTimeExtensionRec { 504 __DRIextension base; 505 506 /** 507 * Get the 64-bit unadjusted system time (UST). 508 */ 509 int (*getUST)(int64_t * ust); 510 511 /** 512 * Get the media stream counter (MSC) rate. 513 * 514 * Matching the definition in GLX_OML_sync_control, this function returns 515 * the rate of the "media stream counter". In practical terms, this is 516 * the frame refresh rate of the display. 517 */ 518 unsigned char (*getMSCRate)(__DRIdrawable *draw, 519 int32_t * numerator, int32_t * denominator, 520 void *loaderPrivate); 521}; 522 523#define __DRI_SWRAST_IMAGE_OP_DRAW 1 524#define __DRI_SWRAST_IMAGE_OP_CLEAR 2 525#define __DRI_SWRAST_IMAGE_OP_SWAP 3 526 527/** 528 * SWRast Loader extension. 529 */ 530#define __DRI_SWRAST_LOADER "DRI_SWRastLoader" 531#define __DRI_SWRAST_LOADER_VERSION 6 532struct __DRIswrastLoaderExtensionRec { 533 __DRIextension base; 534 535 /* 536 * Drawable position and size 537 */ 538 void (*getDrawableInfo)(__DRIdrawable *drawable, 539 int *x, int *y, int *width, int *height, 540 void *loaderPrivate); 541 542 /** 543 * Put image to drawable 544 */ 545 void (*putImage)(__DRIdrawable *drawable, int op, 546 int x, int y, int width, int height, 547 char *data, void *loaderPrivate); 548 549 /** 550 * Get image from readable 551 */ 552 void (*getImage)(__DRIdrawable *readable, 553 int x, int y, int width, int height, 554 char *data, void *loaderPrivate); 555 556 /** 557 * Put image to drawable 558 * 559 * \since 2 560 */ 561 void (*putImage2)(__DRIdrawable *drawable, int op, 562 int x, int y, int width, int height, int stride, 563 char *data, void *loaderPrivate); 564 565 /** 566 * Put image to drawable 567 * 568 * \since 3 569 */ 570 void (*getImage2)(__DRIdrawable *readable, 571 int x, int y, int width, int height, int stride, 572 char *data, void *loaderPrivate); 573 574 /** 575 * Put shm image to drawable 576 * 577 * \since 4 578 */ 579 void (*putImageShm)(__DRIdrawable *drawable, int op, 580 int x, int y, int width, int height, int stride, 581 int shmid, char *shmaddr, unsigned offset, 582 void *loaderPrivate); 583 /** 584 * Get shm image from readable 585 * 586 * \since 4 587 */ 588 void (*getImageShm)(__DRIdrawable *readable, 589 int x, int y, int width, int height, 590 int shmid, void *loaderPrivate); 591 592 /** 593 * Put shm image to drawable (v2) 594 * 595 * The original version fixes srcx/y to 0, and expected 596 * the offset to be adjusted. This version allows src x,y 597 * to not be included in the offset. This is needed to 598 * avoid certain overflow checks in the X server, that 599 * result in lost rendering. 600 * 601 * \since 5 602 */ 603 void (*putImageShm2)(__DRIdrawable *drawable, int op, 604 int x, int y, 605 int width, int height, int stride, 606 int shmid, char *shmaddr, unsigned offset, 607 void *loaderPrivate); 608 609 /** 610 * get shm image to drawable (v2) 611 * 612 * There are some cases where GLX can't use SHM, but DRI 613 * still tries, we need to get a return type for when to 614 * fallback to the non-shm path. 615 * 616 * \since 6 617 */ 618 unsigned char (*getImageShm2)(__DRIdrawable *readable, 619 int x, int y, int width, int height, 620 int shmid, void *loaderPrivate); 621}; 622 623/** 624 * Invalidate loader extension. The presence of this extension 625 * indicates to the DRI driver that the loader will call invalidate in 626 * the __DRI2_FLUSH extension, whenever the needs to query for new 627 * buffers. This means that the DRI driver can drop the polling in 628 * glViewport(). 629 * 630 * The extension doesn't provide any functionality, it's only use to 631 * indicate to the driver that it can use the new semantics. A DRI 632 * driver can use this to switch between the different semantics or 633 * just refuse to initialize if this extension isn't present. 634 */ 635#define __DRI_USE_INVALIDATE "DRI_UseInvalidate" 636#define __DRI_USE_INVALIDATE_VERSION 1 637 638typedef struct __DRIuseInvalidateExtensionRec __DRIuseInvalidateExtension; 639struct __DRIuseInvalidateExtensionRec { 640 __DRIextension base; 641}; 642 643/** 644 * The remaining extensions describe driver extensions, immediately 645 * available interfaces provided by the driver. To start using the 646 * driver, dlsym() for the __DRI_DRIVER_EXTENSIONS symbol and look for 647 * the extension you need in the array. 648 */ 649#define __DRI_DRIVER_EXTENSIONS "__driDriverExtensions" 650 651/** 652 * This symbol replaces the __DRI_DRIVER_EXTENSIONS symbol, and will be 653 * suffixed by "_drivername", allowing multiple drivers to be built into one 654 * library, and also giving the driver the chance to return a variable driver 655 * extensions struct depending on the driver name being loaded or any other 656 * system state. 657 * 658 * The function prototype is: 659 * 660 * const __DRIextension **__driDriverGetExtensions_drivername(void); 661 */ 662#define __DRI_DRIVER_GET_EXTENSIONS "__driDriverGetExtensions" 663 664/** 665 * Tokens for __DRIconfig attribs. A number of attributes defined by 666 * GLX or EGL standards are not in the table, as they must be provided 667 * by the loader. For example, FBConfig ID or visual ID, drawable type. 668 */ 669 670#define __DRI_ATTRIB_BUFFER_SIZE 1 671#define __DRI_ATTRIB_LEVEL 2 672#define __DRI_ATTRIB_RED_SIZE 3 673#define __DRI_ATTRIB_GREEN_SIZE 4 674#define __DRI_ATTRIB_BLUE_SIZE 5 675#define __DRI_ATTRIB_LUMINANCE_SIZE 6 676#define __DRI_ATTRIB_ALPHA_SIZE 7 677#define __DRI_ATTRIB_ALPHA_MASK_SIZE 8 678#define __DRI_ATTRIB_DEPTH_SIZE 9 679#define __DRI_ATTRIB_STENCIL_SIZE 10 680#define __DRI_ATTRIB_ACCUM_RED_SIZE 11 681#define __DRI_ATTRIB_ACCUM_GREEN_SIZE 12 682#define __DRI_ATTRIB_ACCUM_BLUE_SIZE 13 683#define __DRI_ATTRIB_ACCUM_ALPHA_SIZE 14 684#define __DRI_ATTRIB_SAMPLE_BUFFERS 15 685#define __DRI_ATTRIB_SAMPLES 16 686#define __DRI_ATTRIB_RENDER_TYPE 17 687#define __DRI_ATTRIB_CONFIG_CAVEAT 18 688#define __DRI_ATTRIB_CONFORMANT 19 689#define __DRI_ATTRIB_DOUBLE_BUFFER 20 690#define __DRI_ATTRIB_STEREO 21 691#define __DRI_ATTRIB_AUX_BUFFERS 22 692#define __DRI_ATTRIB_TRANSPARENT_TYPE 23 693#define __DRI_ATTRIB_TRANSPARENT_INDEX_VALUE 24 694#define __DRI_ATTRIB_TRANSPARENT_RED_VALUE 25 695#define __DRI_ATTRIB_TRANSPARENT_GREEN_VALUE 26 696#define __DRI_ATTRIB_TRANSPARENT_BLUE_VALUE 27 697#define __DRI_ATTRIB_TRANSPARENT_ALPHA_VALUE 28 698#define __DRI_ATTRIB_FLOAT_MODE 29 699#define __DRI_ATTRIB_RED_MASK 30 700#define __DRI_ATTRIB_GREEN_MASK 31 701#define __DRI_ATTRIB_BLUE_MASK 32 702#define __DRI_ATTRIB_ALPHA_MASK 33 703#define __DRI_ATTRIB_MAX_PBUFFER_WIDTH 34 704#define __DRI_ATTRIB_MAX_PBUFFER_HEIGHT 35 705#define __DRI_ATTRIB_MAX_PBUFFER_PIXELS 36 706#define __DRI_ATTRIB_OPTIMAL_PBUFFER_WIDTH 37 707#define __DRI_ATTRIB_OPTIMAL_PBUFFER_HEIGHT 38 708#define __DRI_ATTRIB_VISUAL_SELECT_GROUP 39 709#define __DRI_ATTRIB_SWAP_METHOD 40 710#define __DRI_ATTRIB_MAX_SWAP_INTERVAL 41 711#define __DRI_ATTRIB_MIN_SWAP_INTERVAL 42 712#define __DRI_ATTRIB_BIND_TO_TEXTURE_RGB 43 713#define __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA 44 714#define __DRI_ATTRIB_BIND_TO_MIPMAP_TEXTURE 45 715#define __DRI_ATTRIB_BIND_TO_TEXTURE_TARGETS 46 716#define __DRI_ATTRIB_YINVERTED 47 717#define __DRI_ATTRIB_FRAMEBUFFER_SRGB_CAPABLE 48 718#define __DRI_ATTRIB_MUTABLE_RENDER_BUFFER 49 /* EGL_MUTABLE_RENDER_BUFFER_BIT_KHR */ 719#define __DRI_ATTRIB_RED_SHIFT 50 720#define __DRI_ATTRIB_GREEN_SHIFT 51 721#define __DRI_ATTRIB_BLUE_SHIFT 52 722#define __DRI_ATTRIB_ALPHA_SHIFT 53 723#define __DRI_ATTRIB_MAX 54 724 725/* __DRI_ATTRIB_RENDER_TYPE */ 726#define __DRI_ATTRIB_RGBA_BIT 0x01 727#define __DRI_ATTRIB_COLOR_INDEX_BIT 0x02 728#define __DRI_ATTRIB_LUMINANCE_BIT 0x04 729#define __DRI_ATTRIB_FLOAT_BIT 0x08 730#define __DRI_ATTRIB_UNSIGNED_FLOAT_BIT 0x10 731 732/* __DRI_ATTRIB_CONFIG_CAVEAT */ 733#define __DRI_ATTRIB_SLOW_BIT 0x01 734#define __DRI_ATTRIB_NON_CONFORMANT_CONFIG 0x02 735 736/* __DRI_ATTRIB_TRANSPARENT_TYPE */ 737#define __DRI_ATTRIB_TRANSPARENT_RGB 0x00 738#define __DRI_ATTRIB_TRANSPARENT_INDEX 0x01 739 740/* __DRI_ATTRIB_BIND_TO_TEXTURE_TARGETS */ 741#define __DRI_ATTRIB_TEXTURE_1D_BIT 0x01 742#define __DRI_ATTRIB_TEXTURE_2D_BIT 0x02 743#define __DRI_ATTRIB_TEXTURE_RECTANGLE_BIT 0x04 744 745/* __DRI_ATTRIB_SWAP_METHOD */ 746/* Note that with the exception of __DRI_ATTRIB_SWAP_NONE, we need to define 747 * the same tokens as GLX. This is because old and current X servers will 748 * transmit the driconf value grabbed from the AIGLX driver untranslated as 749 * the GLX fbconfig value. __DRI_ATTRIB_SWAP_NONE is only used by dri drivers 750 * to signal to the dri core that the driconfig is single-buffer. 751 */ 752#define __DRI_ATTRIB_SWAP_NONE 0x0000 753#define __DRI_ATTRIB_SWAP_EXCHANGE 0x8061 754#define __DRI_ATTRIB_SWAP_COPY 0x8062 755#define __DRI_ATTRIB_SWAP_UNDEFINED 0x8063 756 757/** 758 * This extension defines the core DRI functionality. 759 * 760 * Version >= 2 indicates that getConfigAttrib with __DRI_ATTRIB_SWAP_METHOD 761 * returns a reliable value. 762 */ 763#define __DRI_CORE "DRI_Core" 764#define __DRI_CORE_VERSION 2 765 766struct __DRIcoreExtensionRec { 767 __DRIextension base; 768 769 __DRIscreen *(*createNewScreen)(int screen, int fd, 770 unsigned int sarea_handle, 771 const __DRIextension **extensions, 772 const __DRIconfig ***driverConfigs, 773 void *loaderPrivate); 774 775 void (*destroyScreen)(__DRIscreen *screen); 776 777 const __DRIextension **(*getExtensions)(__DRIscreen *screen); 778 779 int (*getConfigAttrib)(const __DRIconfig *config, 780 unsigned int attrib, 781 unsigned int *value); 782 783 int (*indexConfigAttrib)(const __DRIconfig *config, int index, 784 unsigned int *attrib, unsigned int *value); 785 786 __DRIdrawable *(*createNewDrawable)(__DRIscreen *screen, 787 const __DRIconfig *config, 788 unsigned int drawable_id, 789 unsigned int head, 790 void *loaderPrivate); 791 792 void (*destroyDrawable)(__DRIdrawable *drawable); 793 794 void (*swapBuffers)(__DRIdrawable *drawable); 795 796 __DRIcontext *(*createNewContext)(__DRIscreen *screen, 797 const __DRIconfig *config, 798 __DRIcontext *shared, 799 void *loaderPrivate); 800 801 int (*copyContext)(__DRIcontext *dest, 802 __DRIcontext *src, 803 unsigned long mask); 804 805 void (*destroyContext)(__DRIcontext *context); 806 807 int (*bindContext)(__DRIcontext *ctx, 808 __DRIdrawable *pdraw, 809 __DRIdrawable *pread); 810 811 int (*unbindContext)(__DRIcontext *ctx); 812}; 813 814/** 815 * Stored version of some component (i.e., server-side DRI module, kernel-side 816 * DRM, etc.). 817 * 818 * \todo 819 * There are several data structures that explicitly store a major version, 820 * minor version, and patch level. These structures should be modified to 821 * have a \c __DRIversionRec instead. 822 */ 823struct __DRIversionRec { 824 int major; /**< Major version number. */ 825 int minor; /**< Minor version number. */ 826 int patch; /**< Patch-level. */ 827}; 828 829/** 830 * Framebuffer information record. Used by libGL to communicate information 831 * about the framebuffer to the driver's \c __driCreateNewScreen function. 832 * 833 * In XFree86, most of this information is derrived from data returned by 834 * calling \c XF86DRIGetDeviceInfo. 835 * 836 * \sa XF86DRIGetDeviceInfo __DRIdisplayRec::createNewScreen 837 * __driUtilCreateNewScreen CallCreateNewScreen 838 * 839 * \bug This structure could be better named. 840 */ 841struct __DRIframebufferRec { 842 unsigned char *base; /**< Framebuffer base address in the CPU's 843 * address space. This value is calculated by 844 * calling \c drmMap on the framebuffer handle 845 * returned by \c XF86DRIGetDeviceInfo (or a 846 * similar function). 847 */ 848 int size; /**< Framebuffer size, in bytes. */ 849 int stride; /**< Number of bytes from one line to the next. */ 850 int width; /**< Pixel width of the framebuffer. */ 851 int height; /**< Pixel height of the framebuffer. */ 852 int dev_priv_size; /**< Size of the driver's dev-priv structure. */ 853 void *dev_priv; /**< Pointer to the driver's dev-priv structure. */ 854}; 855 856 857/** 858 * This extension provides alternative screen, drawable and context 859 * constructors for swrast DRI functionality. This is used in 860 * conjunction with the core extension. 861 */ 862#define __DRI_SWRAST "DRI_SWRast" 863#define __DRI_SWRAST_VERSION 4 864 865struct __DRIswrastExtensionRec { 866 __DRIextension base; 867 868 __DRIscreen *(*createNewScreen)(int screen, 869 const __DRIextension **extensions, 870 const __DRIconfig ***driver_configs, 871 void *loaderPrivate); 872 873 __DRIdrawable *(*createNewDrawable)(__DRIscreen *screen, 874 const __DRIconfig *config, 875 void *loaderPrivate); 876 877 /* Since version 2 */ 878 __DRIcontext *(*createNewContextForAPI)(__DRIscreen *screen, 879 int api, 880 const __DRIconfig *config, 881 __DRIcontext *shared, 882 void *data); 883 884 /** 885 * Create a context for a particular API with a set of attributes 886 * 887 * \since version 3 888 * 889 * \sa __DRIdri2ExtensionRec::createContextAttribs 890 */ 891 __DRIcontext *(*createContextAttribs)(__DRIscreen *screen, 892 int api, 893 const __DRIconfig *config, 894 __DRIcontext *shared, 895 unsigned num_attribs, 896 const uint32_t *attribs, 897 unsigned *error, 898 void *loaderPrivate); 899 900 /** 901 * createNewScreen() with the driver extensions passed in. 902 * 903 * \since version 4 904 */ 905 __DRIscreen *(*createNewScreen2)(int screen, 906 const __DRIextension **loader_extensions, 907 const __DRIextension **driver_extensions, 908 const __DRIconfig ***driver_configs, 909 void *loaderPrivate); 910 911}; 912 913/** Common DRI function definitions, shared among DRI2 and Image extensions 914 */ 915 916typedef __DRIscreen * 917(*__DRIcreateNewScreen2Func)(int screen, int fd, 918 const __DRIextension **extensions, 919 const __DRIextension **driver_extensions, 920 const __DRIconfig ***driver_configs, 921 void *loaderPrivate); 922 923typedef __DRIdrawable * 924(*__DRIcreateNewDrawableFunc)(__DRIscreen *screen, 925 const __DRIconfig *config, 926 void *loaderPrivate); 927 928typedef __DRIcontext * 929(*__DRIcreateContextAttribsFunc)(__DRIscreen *screen, 930 int api, 931 const __DRIconfig *config, 932 __DRIcontext *shared, 933 unsigned num_attribs, 934 const uint32_t *attribs, 935 unsigned *error, 936 void *loaderPrivate); 937 938typedef unsigned int 939(*__DRIgetAPIMaskFunc)(__DRIscreen *screen); 940 941/** 942 * DRI2 Loader extension. 943 */ 944#define __DRI_BUFFER_FRONT_LEFT 0 945#define __DRI_BUFFER_BACK_LEFT 1 946#define __DRI_BUFFER_FRONT_RIGHT 2 947#define __DRI_BUFFER_BACK_RIGHT 3 948#define __DRI_BUFFER_DEPTH 4 949#define __DRI_BUFFER_STENCIL 5 950#define __DRI_BUFFER_ACCUM 6 951#define __DRI_BUFFER_FAKE_FRONT_LEFT 7 952#define __DRI_BUFFER_FAKE_FRONT_RIGHT 8 953#define __DRI_BUFFER_DEPTH_STENCIL 9 /**< Only available with DRI2 1.1 */ 954#define __DRI_BUFFER_HIZ 10 955 956/* Inofficial and for internal use. Increase when adding a new buffer token. */ 957#define __DRI_BUFFER_COUNT 11 958 959struct __DRIbufferRec { 960 unsigned int attachment; 961 unsigned int name; 962 unsigned int pitch; 963 unsigned int cpp; 964 unsigned int flags; 965}; 966 967#define __DRI_DRI2_LOADER "DRI_DRI2Loader" 968#define __DRI_DRI2_LOADER_VERSION 5 969 970enum dri_loader_cap { 971 /* Whether the loader handles RGBA channel ordering correctly. If not, 972 * only BGRA ordering can be exposed. 973 */ 974 DRI_LOADER_CAP_RGBA_ORDERING, 975 DRI_LOADER_CAP_FP16, 976}; 977 978struct __DRIdri2LoaderExtensionRec { 979 __DRIextension base; 980 981 __DRIbuffer *(*getBuffers)(__DRIdrawable *driDrawable, 982 int *width, int *height, 983 unsigned int *attachments, int count, 984 int *out_count, void *loaderPrivate); 985 986 /** 987 * Flush pending front-buffer rendering 988 * 989 * Any rendering that has been performed to the 990 * \c __DRI_BUFFER_FAKE_FRONT_LEFT will be flushed to the 991 * \c __DRI_BUFFER_FRONT_LEFT. 992 * 993 * \param driDrawable Drawable whose front-buffer is to be flushed 994 * \param loaderPrivate Loader's private data that was previously passed 995 * into __DRIdri2ExtensionRec::createNewDrawable 996 * 997 * \since 2 998 */ 999 void (*flushFrontBuffer)(__DRIdrawable *driDrawable, void *loaderPrivate); 1000 1001 1002 /** 1003 * Get list of buffers from the server 1004 * 1005 * Gets a list of buffer for the specified set of attachments. Unlike 1006 * \c ::getBuffers, this function takes a list of attachments paired with 1007 * opaque \c unsigned \c int value describing the format of the buffer. 1008 * It is the responsibility of the caller to know what the service that 1009 * allocates the buffers will expect to receive for the format. 1010 * 1011 * \param driDrawable Drawable whose buffers are being queried. 1012 * \param width Output where the width of the buffers is stored. 1013 * \param height Output where the height of the buffers is stored. 1014 * \param attachments List of pairs of attachment ID and opaque format 1015 * requested for the drawable. 1016 * \param count Number of attachment / format pairs stored in 1017 * \c attachments. 1018 * \param loaderPrivate Loader's private data that was previously passed 1019 * into __DRIdri2ExtensionRec::createNewDrawable. 1020 * 1021 * \since 3 1022 */ 1023 __DRIbuffer *(*getBuffersWithFormat)(__DRIdrawable *driDrawable, 1024 int *width, int *height, 1025 unsigned int *attachments, int count, 1026 int *out_count, void *loaderPrivate); 1027 1028 /** 1029 * Return a loader capability value. If the loader doesn't know the enum, 1030 * it will return 0. 1031 * 1032 * \param loaderPrivate The last parameter of createNewScreen or 1033 * createNewScreen2. 1034 * \param cap See the enum. 1035 * 1036 * \since 4 1037 */ 1038 unsigned (*getCapability)(void *loaderPrivate, enum dri_loader_cap cap); 1039 1040 /** 1041 * Clean up any loader state associated with an image. 1042 * 1043 * \param loaderPrivate Loader's private data that was previously passed 1044 * into a __DRIimageExtensionRec::createImage function 1045 * \since 5 1046 */ 1047 void (*destroyLoaderImageState)(void *loaderPrivate); 1048}; 1049 1050/** 1051 * This extension provides alternative screen, drawable and context 1052 * constructors for DRI2. 1053 */ 1054#define __DRI_DRI2 "DRI_DRI2" 1055#define __DRI_DRI2_VERSION 4 1056 1057#define __DRI_API_OPENGL 0 /**< OpenGL compatibility profile */ 1058#define __DRI_API_GLES 1 /**< OpenGL ES 1.x */ 1059#define __DRI_API_GLES2 2 /**< OpenGL ES 2.x */ 1060#define __DRI_API_OPENGL_CORE 3 /**< OpenGL 3.2+ core profile */ 1061#define __DRI_API_GLES3 4 /**< OpenGL ES 3.x */ 1062 1063#define __DRI_CTX_ATTRIB_MAJOR_VERSION 0 1064#define __DRI_CTX_ATTRIB_MINOR_VERSION 1 1065 1066/* These must alias the GLX/EGL values. */ 1067#define __DRI_CTX_ATTRIB_FLAGS 2 1068#define __DRI_CTX_FLAG_DEBUG 0x00000001 1069#define __DRI_CTX_FLAG_FORWARD_COMPATIBLE 0x00000002 1070#define __DRI_CTX_FLAG_ROBUST_BUFFER_ACCESS 0x00000004 1071#define __DRI_CTX_FLAG_NO_ERROR 0x00000008 /* Deprecated, do not use */ 1072/* Not yet implemented but placed here to reserve the alias with GLX */ 1073#define __DRI_CTX_FLAG_RESET_ISOLATION 0x00000008 1074 1075#define __DRI_CTX_ATTRIB_RESET_STRATEGY 3 1076#define __DRI_CTX_RESET_NO_NOTIFICATION 0 1077#define __DRI_CTX_RESET_LOSE_CONTEXT 1 1078 1079/** 1080 * \name Context priority levels. 1081 */ 1082#define __DRI_CTX_ATTRIB_PRIORITY 4 1083#define __DRI_CTX_PRIORITY_LOW 0 1084#define __DRI_CTX_PRIORITY_MEDIUM 1 1085#define __DRI_CTX_PRIORITY_HIGH 2 1086 1087#define __DRI_CTX_ATTRIB_RELEASE_BEHAVIOR 5 1088#define __DRI_CTX_RELEASE_BEHAVIOR_NONE 0 1089#define __DRI_CTX_RELEASE_BEHAVIOR_FLUSH 1 1090 1091#define __DRI_CTX_ATTRIB_NO_ERROR 6 1092 1093#define __DRI_CTX_NUM_ATTRIBS 7 1094 1095/** 1096 * \name Reasons that __DRIdri2Extension::createContextAttribs might fail 1097 */ 1098/*@{*/ 1099/** Success! */ 1100#define __DRI_CTX_ERROR_SUCCESS 0 1101 1102/** Memory allocation failure */ 1103#define __DRI_CTX_ERROR_NO_MEMORY 1 1104 1105/** Client requested an API (e.g., OpenGL ES 2.0) that the driver can't do. */ 1106#define __DRI_CTX_ERROR_BAD_API 2 1107 1108/** Client requested an API version that the driver can't do. */ 1109#define __DRI_CTX_ERROR_BAD_VERSION 3 1110 1111/** Client requested a flag or combination of flags the driver can't do. */ 1112#define __DRI_CTX_ERROR_BAD_FLAG 4 1113 1114/** Client requested an attribute the driver doesn't understand. */ 1115#define __DRI_CTX_ERROR_UNKNOWN_ATTRIBUTE 5 1116 1117/** Client requested a flag the driver doesn't understand. */ 1118#define __DRI_CTX_ERROR_UNKNOWN_FLAG 6 1119/*@}*/ 1120 1121struct __DRIdri2ExtensionRec { 1122 __DRIextension base; 1123 1124 __DRIscreen *(*createNewScreen)(int screen, int fd, 1125 const __DRIextension **extensions, 1126 const __DRIconfig ***driver_configs, 1127 void *loaderPrivate); 1128 1129 __DRIcreateNewDrawableFunc createNewDrawable; 1130 __DRIcontext *(*createNewContext)(__DRIscreen *screen, 1131 const __DRIconfig *config, 1132 __DRIcontext *shared, 1133 void *loaderPrivate); 1134 1135 /* Since version 2 */ 1136 __DRIgetAPIMaskFunc getAPIMask; 1137 1138 __DRIcontext *(*createNewContextForAPI)(__DRIscreen *screen, 1139 int api, 1140 const __DRIconfig *config, 1141 __DRIcontext *shared, 1142 void *data); 1143 1144 __DRIbuffer *(*allocateBuffer)(__DRIscreen *screen, 1145 unsigned int attachment, 1146 unsigned int format, 1147 int width, 1148 int height); 1149 void (*releaseBuffer)(__DRIscreen *screen, 1150 __DRIbuffer *buffer); 1151 1152 /** 1153 * Create a context for a particular API with a set of attributes 1154 * 1155 * \since version 3 1156 * 1157 * \sa __DRIswrastExtensionRec::createContextAttribs 1158 */ 1159 __DRIcreateContextAttribsFunc createContextAttribs; 1160 1161 /** 1162 * createNewScreen with the driver's extension list passed in. 1163 * 1164 * \since version 4 1165 */ 1166 __DRIcreateNewScreen2Func createNewScreen2; 1167}; 1168 1169 1170/** 1171 * This extension provides functionality to enable various EGLImage 1172 * extensions. 1173 */ 1174#define __DRI_IMAGE "DRI_IMAGE" 1175#define __DRI_IMAGE_VERSION 20 1176 1177/** 1178 * These formats correspond to the similarly named MESA_FORMAT_* 1179 * tokens, except in the native endian of the CPU. For example, on 1180 * little endian __DRI_IMAGE_FORMAT_XRGB8888 corresponds to 1181 * MESA_FORMAT_XRGB8888, but MESA_FORMAT_XRGB8888_REV on big endian. 1182 * 1183 * __DRI_IMAGE_FORMAT_NONE is for images that aren't directly usable 1184 * by the driver (YUV planar formats) but serve as a base image for 1185 * creating sub-images for the different planes within the image. 1186 * 1187 * R8, GR88 and NONE should not be used with createImageFromName or 1188 * createImage, and are returned by query from sub images created with 1189 * createImageFromNames (NONE, see above) and fromPlane (R8 & GR88). 1190 */ 1191#define __DRI_IMAGE_FORMAT_RGB565 0x1001 1192#define __DRI_IMAGE_FORMAT_XRGB8888 0x1002 1193#define __DRI_IMAGE_FORMAT_ARGB8888 0x1003 1194#define __DRI_IMAGE_FORMAT_ABGR8888 0x1004 1195#define __DRI_IMAGE_FORMAT_XBGR8888 0x1005 1196#define __DRI_IMAGE_FORMAT_R8 0x1006 /* Since version 5 */ 1197#define __DRI_IMAGE_FORMAT_GR88 0x1007 1198#define __DRI_IMAGE_FORMAT_NONE 0x1008 1199#define __DRI_IMAGE_FORMAT_XRGB2101010 0x1009 1200#define __DRI_IMAGE_FORMAT_ARGB2101010 0x100a 1201#define __DRI_IMAGE_FORMAT_SARGB8 0x100b 1202#define __DRI_IMAGE_FORMAT_ARGB1555 0x100c 1203#define __DRI_IMAGE_FORMAT_R16 0x100d 1204#define __DRI_IMAGE_FORMAT_GR1616 0x100e 1205#define __DRI_IMAGE_FORMAT_YUYV 0x100f 1206#define __DRI_IMAGE_FORMAT_XBGR2101010 0x1010 1207#define __DRI_IMAGE_FORMAT_ABGR2101010 0x1011 1208#define __DRI_IMAGE_FORMAT_SABGR8 0x1012 1209#define __DRI_IMAGE_FORMAT_UYVY 0x1013 1210#define __DRI_IMAGE_FORMAT_XBGR16161616F 0x1014 1211#define __DRI_IMAGE_FORMAT_ABGR16161616F 0x1015 1212#define __DRI_IMAGE_FORMAT_SXRGB8 0x1016 1213#define __DRI_IMAGE_FORMAT_ABGR16161616 0x1017 1214#define __DRI_IMAGE_FORMAT_XBGR16161616 0x1018 1215 1216#define __DRI_IMAGE_USE_SHARE 0x0001 1217#define __DRI_IMAGE_USE_SCANOUT 0x0002 1218#define __DRI_IMAGE_USE_CURSOR 0x0004 /* Deprecated */ 1219#define __DRI_IMAGE_USE_LINEAR 0x0008 1220/* The buffer will only be read by an external process after SwapBuffers, 1221 * in contrary to gbm buffers, front buffers and fake front buffers, which 1222 * could be read after a flush." 1223 */ 1224#define __DRI_IMAGE_USE_BACKBUFFER 0x0010 1225#define __DRI_IMAGE_USE_PROTECTED 0x0020 1226#define __DRI_IMAGE_USE_PRIME_BUFFER 0x0040 1227 1228 1229#define __DRI_IMAGE_TRANSFER_READ 0x1 1230#define __DRI_IMAGE_TRANSFER_WRITE 0x2 1231#define __DRI_IMAGE_TRANSFER_READ_WRITE \ 1232 (__DRI_IMAGE_TRANSFER_READ | __DRI_IMAGE_TRANSFER_WRITE) 1233 1234/** 1235 * Extra fourcc formats used internally to Mesa with createImageFromNames. 1236 * The externally-available fourccs are defined by drm_fourcc.h (DRM_FORMAT_*) 1237 * and WL_DRM_FORMAT_* from wayland_drm.h. 1238 * 1239 * \since 5 1240 */ 1241 1242#define __DRI_IMAGE_FOURCC_SARGB8888 0x83324258 1243#define __DRI_IMAGE_FOURCC_SABGR8888 0x84324258 1244#define __DRI_IMAGE_FOURCC_SXRGB8888 0x85324258 1245 1246/** 1247 * Queryable on images created by createImageFromNames. 1248 * 1249 * RGB and RGBA might be usable directly as images, but it's still 1250 * recommended to call fromPlanar with plane == 0. 1251 * 1252 * Y_U_V, Y_UV,Y_XUXV and Y_UXVX all requires call to fromPlanar to create 1253 * usable sub-images, sampling from images return raw YUV data and 1254 * color conversion needs to be done in the shader. 1255 * 1256 * \since 5 1257 */ 1258 1259#define __DRI_IMAGE_COMPONENTS_RGB 0x3001 1260#define __DRI_IMAGE_COMPONENTS_RGBA 0x3002 1261#define __DRI_IMAGE_COMPONENTS_Y_U_V 0x3003 1262#define __DRI_IMAGE_COMPONENTS_Y_UV 0x3004 1263#define __DRI_IMAGE_COMPONENTS_Y_XUXV 0x3005 1264#define __DRI_IMAGE_COMPONENTS_Y_UXVX 0x3008 1265#define __DRI_IMAGE_COMPONENTS_AYUV 0x3009 1266#define __DRI_IMAGE_COMPONENTS_XYUV 0x300A 1267#define __DRI_IMAGE_COMPONENTS_R 0x3006 1268#define __DRI_IMAGE_COMPONENTS_RG 0x3007 1269 1270 1271/** 1272 * queryImage attributes 1273 */ 1274 1275#define __DRI_IMAGE_ATTRIB_STRIDE 0x2000 1276#define __DRI_IMAGE_ATTRIB_HANDLE 0x2001 1277#define __DRI_IMAGE_ATTRIB_NAME 0x2002 1278#define __DRI_IMAGE_ATTRIB_FORMAT 0x2003 /* available in versions 3+ */ 1279#define __DRI_IMAGE_ATTRIB_WIDTH 0x2004 /* available in versions 4+ */ 1280#define __DRI_IMAGE_ATTRIB_HEIGHT 0x2005 1281#define __DRI_IMAGE_ATTRIB_COMPONENTS 0x2006 /* available in versions 5+ */ 1282#define __DRI_IMAGE_ATTRIB_FD 0x2007 /* available in versions 1283 * 7+. Each query will return a 1284 * new fd. */ 1285#define __DRI_IMAGE_ATTRIB_FOURCC 0x2008 /* available in versions 11 */ 1286#define __DRI_IMAGE_ATTRIB_NUM_PLANES 0x2009 /* available in versions 11 */ 1287 1288#define __DRI_IMAGE_ATTRIB_OFFSET 0x200A /* available in versions 13 */ 1289#define __DRI_IMAGE_ATTRIB_MODIFIER_LOWER 0x200B /* available in versions 14 */ 1290#define __DRI_IMAGE_ATTRIB_MODIFIER_UPPER 0x200C /* available in versions 14 */ 1291 1292enum __DRIYUVColorSpace { 1293 __DRI_YUV_COLOR_SPACE_UNDEFINED = 0, 1294 __DRI_YUV_COLOR_SPACE_ITU_REC601 = 0x327F, 1295 __DRI_YUV_COLOR_SPACE_ITU_REC709 = 0x3280, 1296 __DRI_YUV_COLOR_SPACE_ITU_REC2020 = 0x3281 1297}; 1298 1299enum __DRISampleRange { 1300 __DRI_YUV_RANGE_UNDEFINED = 0, 1301 __DRI_YUV_FULL_RANGE = 0x3282, 1302 __DRI_YUV_NARROW_RANGE = 0x3283 1303}; 1304 1305enum __DRIChromaSiting { 1306 __DRI_YUV_CHROMA_SITING_UNDEFINED = 0, 1307 __DRI_YUV_CHROMA_SITING_0 = 0x3284, 1308 __DRI_YUV_CHROMA_SITING_0_5 = 0x3285 1309}; 1310 1311/** 1312 * \name Reasons that __DRIimageExtensionRec::createImageFromTexture or 1313 * __DRIimageExtensionRec::createImageFromDmaBufs might fail 1314 */ 1315/*@{*/ 1316/** Success! */ 1317#define __DRI_IMAGE_ERROR_SUCCESS 0 1318 1319/** Memory allocation failure */ 1320#define __DRI_IMAGE_ERROR_BAD_ALLOC 1 1321 1322/** Client requested an invalid attribute */ 1323#define __DRI_IMAGE_ERROR_BAD_MATCH 2 1324 1325/** Client requested an invalid texture object */ 1326#define __DRI_IMAGE_ERROR_BAD_PARAMETER 3 1327 1328/** Client requested an invalid pitch and/or offset */ 1329#define __DRI_IMAGE_ERROR_BAD_ACCESS 4 1330/*@}*/ 1331 1332/** 1333 * \name Capabilities that might be returned by __DRIimageExtensionRec::getCapabilities 1334 */ 1335/*@{*/ 1336#define __DRI_IMAGE_CAP_GLOBAL_NAMES 1 1337/*@}*/ 1338 1339/** 1340 * blitImage flags 1341 */ 1342 1343#define __BLIT_FLAG_FLUSH 0x0001 1344#define __BLIT_FLAG_FINISH 0x0002 1345 1346/** 1347 * Flags for createImageFromDmaBufs3 and createImageFromFds2 1348 */ 1349#define __DRI_IMAGE_PROTECTED_CONTENT_FLAG 0x00000001 1350#define __DRI_IMAGE_PRIME_LINEAR_BUFFER 0x00000002 1351 1352/** 1353 * queryDmaBufFormatModifierAttribs attributes 1354 */ 1355 1356/* Available in version 16 */ 1357#define __DRI_IMAGE_FORMAT_MODIFIER_ATTRIB_PLANE_COUNT 0x0001 1358 1359typedef struct __DRIimageRec __DRIimage; 1360typedef struct __DRIimageExtensionRec __DRIimageExtension; 1361struct __DRIimageExtensionRec { 1362 __DRIextension base; 1363 1364 __DRIimage *(*createImageFromName)(__DRIscreen *screen, 1365 int width, int height, int format, 1366 int name, int pitch, 1367 void *loaderPrivate); 1368 1369 /* Deprecated since version 17; see createImageFromRenderbuffer2 */ 1370 __DRIimage *(*createImageFromRenderbuffer)(__DRIcontext *context, 1371 int renderbuffer, 1372 void *loaderPrivate); 1373 1374 void (*destroyImage)(__DRIimage *image); 1375 1376 __DRIimage *(*createImage)(__DRIscreen *screen, 1377 int width, int height, int format, 1378 unsigned int use, 1379 void *loaderPrivate); 1380 1381 unsigned char (*queryImage)(__DRIimage *image, int attrib, int *value); 1382 1383 /** 1384 * The new __DRIimage will share the content with the old one, see dup(2). 1385 */ 1386 __DRIimage *(*dupImage)(__DRIimage *image, void *loaderPrivate); 1387 1388 /** 1389 * Validate that a __DRIimage can be used a certain way. 1390 * 1391 * \since 2 1392 */ 1393 unsigned char (*validateUsage)(__DRIimage *image, unsigned int use); 1394 1395 /** 1396 * Unlike createImageFromName __DRI_IMAGE_FORMAT is not used but instead 1397 * DRM_FORMAT_*, and strides are in bytes not pixels. Stride is 1398 * also per block and not per pixel (for non-RGB, see gallium blocks). 1399 * 1400 * \since 5 1401 */ 1402 __DRIimage *(*createImageFromNames)(__DRIscreen *screen, 1403 int width, int height, int fourcc, 1404 int *names, int num_names, 1405 int *strides, int *offsets, 1406 void *loaderPrivate); 1407 1408 /** 1409 * Create an image out of a sub-region of a parent image. This 1410 * entry point lets us create individual __DRIimages for different 1411 * planes in a planar buffer (typically yuv), for example. While a 1412 * sub-image shares the underlying buffer object with the parent 1413 * image and other sibling sub-images, the life times of parent and 1414 * sub-images are not dependent. Destroying the parent or a 1415 * sub-image doesn't affect other images. The underlying buffer 1416 * object is free when no __DRIimage remains that references it. 1417 * 1418 * Sub-images may overlap, but rendering to overlapping sub-images 1419 * is undefined. 1420 * 1421 * \since 5 1422 */ 1423 __DRIimage *(*fromPlanar)(__DRIimage *image, int plane, 1424 void *loaderPrivate); 1425 1426 /** 1427 * Create image from texture. 1428 * 1429 * \since 6 1430 */ 1431 __DRIimage *(*createImageFromTexture)(__DRIcontext *context, 1432 int target, 1433 unsigned texture, 1434 int depth, 1435 int level, 1436 unsigned *error, 1437 void *loaderPrivate); 1438 /** 1439 * Like createImageFromNames, but takes a prime fd instead. 1440 * 1441 * \since 7 1442 */ 1443 __DRIimage *(*createImageFromFds)(__DRIscreen *screen, 1444 int width, int height, int fourcc, 1445 int *fds, int num_fds, 1446 int *strides, int *offsets, 1447 void *loaderPrivate); 1448 1449 /** 1450 * Like createImageFromFds, but takes additional attributes. 1451 * 1452 * For EGL_EXT_image_dma_buf_import. 1453 * 1454 * \since 8 1455 */ 1456 __DRIimage *(*createImageFromDmaBufs)(__DRIscreen *screen, 1457 int width, int height, int fourcc, 1458 int *fds, int num_fds, 1459 int *strides, int *offsets, 1460 enum __DRIYUVColorSpace color_space, 1461 enum __DRISampleRange sample_range, 1462 enum __DRIChromaSiting horiz_siting, 1463 enum __DRIChromaSiting vert_siting, 1464 unsigned *error, 1465 void *loaderPrivate); 1466 1467 /** 1468 * Blit a part of a __DRIimage to another and flushes 1469 * 1470 * flush_flag: 1471 * 0: no flush 1472 * __BLIT_FLAG_FLUSH: flush after the blit operation 1473 * __BLIT_FLAG_FINISH: flush and wait the blit finished 1474 * 1475 * \since 9 1476 */ 1477 void (*blitImage)(__DRIcontext *context, __DRIimage *dst, __DRIimage *src, 1478 int dstx0, int dsty0, int dstwidth, int dstheight, 1479 int srcx0, int srcy0, int srcwidth, int srcheight, 1480 int flush_flag); 1481 1482 /** 1483 * Query for general capabilities of the driver that concern 1484 * buffer sharing and image importing. 1485 * 1486 * \since 10 1487 */ 1488 int (*getCapabilities)(__DRIscreen *screen); 1489 1490 /** 1491 * Returns a map of the specified region of a __DRIimage for the specified usage. 1492 * 1493 * flags may include __DRI_IMAGE_TRANSFER_READ, which will populate the 1494 * mapping with the current buffer content. If __DRI_IMAGE_TRANSFER_READ 1495 * is not included in the flags, the buffer content at map time is 1496 * undefined. Users wanting to modify the mapping must include 1497 * __DRI_IMAGE_TRANSFER_WRITE; if __DRI_IMAGE_TRANSFER_WRITE is not 1498 * included, behaviour when writing the mapping is undefined. 1499 * 1500 * Returns the byte stride in *stride, and an opaque pointer to data 1501 * tracking the mapping in **data, which must be passed to unmapImage(). 1502 * 1503 * \since 12 1504 */ 1505 void *(*mapImage)(__DRIcontext *context, __DRIimage *image, 1506 int x0, int y0, int width, int height, 1507 unsigned int flags, int *stride, void **data); 1508 1509 /** 1510 * Unmap a previously mapped __DRIimage 1511 * 1512 * \since 12 1513 */ 1514 void (*unmapImage)(__DRIcontext *context, __DRIimage *image, void *data); 1515 1516 1517 /** 1518 * Creates an image with implementation's favorite modifiers. 1519 * 1520 * This acts like createImage except there is a list of modifiers passed in 1521 * which the implementation may selectively use to create the DRIimage. The 1522 * result should be the implementation selects one modifier (perhaps it would 1523 * hold on to a few and later pick). 1524 * 1525 * The created image should be destroyed with destroyImage(). 1526 * 1527 * Returns the new DRIimage. The chosen modifier can be obtained later on 1528 * and passed back to things like the kernel's AddFB2 interface. 1529 * 1530 * \sa __DRIimageRec::createImage 1531 * 1532 * \since 14 1533 */ 1534 __DRIimage *(*createImageWithModifiers)(__DRIscreen *screen, 1535 int width, int height, int format, 1536 const uint64_t *modifiers, 1537 const unsigned int modifier_count, 1538 void *loaderPrivate); 1539 1540 /* 1541 * Like createImageFromDmaBufs, but takes also format modifiers. 1542 * 1543 * For EGL_EXT_image_dma_buf_import_modifiers. 1544 * 1545 * \since 15 1546 */ 1547 __DRIimage *(*createImageFromDmaBufs2)(__DRIscreen *screen, 1548 int width, int height, int fourcc, 1549 uint64_t modifier, 1550 int *fds, int num_fds, 1551 int *strides, int *offsets, 1552 enum __DRIYUVColorSpace color_space, 1553 enum __DRISampleRange sample_range, 1554 enum __DRIChromaSiting horiz_siting, 1555 enum __DRIChromaSiting vert_siting, 1556 unsigned *error, 1557 void *loaderPrivate); 1558 1559 /* 1560 * dmabuf format query to support EGL_EXT_image_dma_buf_import_modifiers. 1561 * 1562 * \param max Maximum number of formats that can be accomodated into 1563 * \param formats. If zero, no formats are returned - 1564 * instead, the driver returns the total number of 1565 * supported dmabuf formats in \param count. 1566 * \param formats Buffer to fill formats into. 1567 * \param count Count of formats returned, or, total number of 1568 * supported formats in case \param max is zero. 1569 * 1570 * Returns true on success. 1571 * 1572 * \since 15 1573 */ 1574 unsigned char (*queryDmaBufFormats)(__DRIscreen *screen, int max, 1575 int *formats, int *count); 1576 1577 /* 1578 * dmabuf format modifier query for a given format to support 1579 * EGL_EXT_image_dma_buf_import_modifiers. 1580 * 1581 * \param fourcc The format to query modifiers for. If this format 1582 * is not supported by the driver, return false. 1583 * \param max Maximum number of modifiers that can be accomodated in 1584 * \param modifiers. If zero, no modifiers are returned - 1585 * instead, the driver returns the total number of 1586 * modifiers for \param format in \param count. 1587 * \param modifiers Buffer to fill modifiers into. 1588 * \param count Count of the modifiers returned, or, total number of 1589 * supported modifiers for \param fourcc in case 1590 * \param max is zero. 1591 * 1592 * Returns true upon success. 1593 * 1594 * \since 15 1595 */ 1596 unsigned char (*queryDmaBufModifiers)(__DRIscreen *screen, int fourcc, 1597 int max, uint64_t *modifiers, 1598 unsigned int *external_only, 1599 int *count); 1600 1601 /** 1602 * dmabuf format modifier attribute query for a given format and modifier. 1603 * 1604 * \param fourcc The format to query. If this format is not supported by 1605 * the driver, return false. 1606 * \param modifier The modifier to query. If this format+modifier is not 1607 * supported by the driver, return false. 1608 * \param attrib The __DRI_IMAGE_FORMAT_MODIFIER_ATTRIB to query. 1609 * \param value A pointer to where to store the result of the query. 1610 * 1611 * Returns true upon success. 1612 * 1613 * \since 16 1614 */ 1615 unsigned char (*queryDmaBufFormatModifierAttribs)(__DRIscreen *screen, 1616 uint32_t fourcc, 1617 uint64_t modifier, 1618 int attrib, 1619 uint64_t *value); 1620 1621 /** 1622 * Create a DRI image from the given renderbuffer. 1623 * 1624 * \param context the current DRI context 1625 * \param renderbuffer the GL name of the renderbuffer 1626 * \param loaderPrivate for callbacks into the loader related to the image 1627 * \param error will be set to one of __DRI_IMAGE_ERROR_xxx 1628 * \return the newly created image on success, or NULL otherwise 1629 * 1630 * \since 17 1631 */ 1632 __DRIimage *(*createImageFromRenderbuffer2)(__DRIcontext *context, 1633 int renderbuffer, 1634 void *loaderPrivate, 1635 unsigned *error); 1636 1637 /* 1638 * Like createImageFromDmaBufs2, but with an added flags parameter. 1639 * 1640 * See __DRI_IMAGE_*_FLAG for valid definitions of flags. 1641 * 1642 * \since 18 1643 */ 1644 __DRIimage *(*createImageFromDmaBufs3)(__DRIscreen *screen, 1645 int width, int height, int fourcc, 1646 uint64_t modifier, 1647 int *fds, int num_fds, 1648 int *strides, int *offsets, 1649 enum __DRIYUVColorSpace color_space, 1650 enum __DRISampleRange sample_range, 1651 enum __DRIChromaSiting horiz_siting, 1652 enum __DRIChromaSiting vert_siting, 1653 uint32_t flags, 1654 unsigned *error, 1655 void *loaderPrivate); 1656 1657 /** 1658 * Creates an image with implementation's favorite modifiers and the 1659 * provided usage flags. 1660 * 1661 * This acts like createImageWithModifiers except usage is also specified. 1662 * 1663 * The created image should be destroyed with destroyImage(). 1664 * 1665 * Returns the new DRIimage. The chosen modifier can be obtained later on 1666 * and passed back to things like the kernel's AddFB2 interface. 1667 * 1668 * \sa __DRIimageRec::createImage 1669 * 1670 * \since 19 1671 */ 1672 __DRIimage *(*createImageWithModifiers2)(__DRIscreen *screen, 1673 int width, int height, int format, 1674 const uint64_t *modifiers, 1675 const unsigned int modifier_count, 1676 unsigned int use, 1677 void *loaderPrivate); 1678 1679 /** 1680 * Like createImageFromFds, but with an added flag parameter. 1681 * 1682 * See __DRI_IMAGE_*_FLAG for valid definitions of flags. 1683 * 1684 * \since 20 1685 */ 1686 __DRIimage *(*createImageFromFds2)(__DRIscreen *screen, 1687 int width, int height, int fourcc, 1688 int *fds, int num_fds, 1689 uint32_t flags, 1690 int *strides, int *offsets, 1691 void *loaderPrivate); 1692 1693 /** 1694 * Set an in-fence-fd on the image. If a fence-fd is already set 1695 * (but not yet consumed), the existing and new fence will be merged 1696 * 1697 * This does *not* take ownership of the fd. The fd does not need 1698 * to be kept alive once the call has returned. 1699 * 1700 * \since 21 1701 */ 1702 void (*setInFenceFd)(__DRIimage *image, int fd); 1703}; 1704 1705 1706/** 1707 * This extension must be implemented by the loader and passed to the 1708 * driver at screen creation time. The EGLImage entry points in the 1709 * various client APIs take opaque EGLImage handles and use this 1710 * extension to map them to a __DRIimage. At version 1, this 1711 * extensions allows mapping EGLImage pointers to __DRIimage pointers, 1712 * but future versions could support other EGLImage-like, opaque types 1713 * with new lookup functions. 1714 */ 1715#define __DRI_IMAGE_LOOKUP "DRI_IMAGE_LOOKUP" 1716#define __DRI_IMAGE_LOOKUP_VERSION 2 1717 1718typedef struct __DRIimageLookupExtensionRec __DRIimageLookupExtension; 1719struct __DRIimageLookupExtensionRec { 1720 __DRIextension base; 1721 1722 /** 1723 * Lookup EGLImage without validated. Equivalent to call 1724 * validateEGLImage() then lookupEGLImageValidated(). 1725 * 1726 * \since 1 1727 */ 1728 __DRIimage *(*lookupEGLImage)(__DRIscreen *screen, void *image, 1729 void *loaderPrivate); 1730 1731 /** 1732 * Check if EGLImage is associated with the EGL display before lookup with 1733 * lookupEGLImageValidated(). It will hold EGLDisplay.Mutex, so is separated 1734 * out from lookupEGLImage() to avoid deadlock. 1735 * 1736 * \since 2 1737 */ 1738 unsigned char (*validateEGLImage)(void *image, void *loaderPrivate); 1739 1740 /** 1741 * Lookup EGLImage after validateEGLImage(). No lock in this function. 1742 * 1743 * \since 2 1744 */ 1745 __DRIimage *(*lookupEGLImageValidated)(void *image, void *loaderPrivate); 1746}; 1747 1748/** 1749 * This extension allows for common DRI2 options 1750 */ 1751#define __DRI2_CONFIG_QUERY "DRI_CONFIG_QUERY" 1752#define __DRI2_CONFIG_QUERY_VERSION 2 1753 1754typedef struct __DRI2configQueryExtensionRec __DRI2configQueryExtension; 1755struct __DRI2configQueryExtensionRec { 1756 __DRIextension base; 1757 1758 int (*configQueryb)(__DRIscreen *screen, const char *var, unsigned char *val); 1759 int (*configQueryi)(__DRIscreen *screen, const char *var, int *val); 1760 int (*configQueryf)(__DRIscreen *screen, const char *var, float *val); 1761 int (*configQuerys)(__DRIscreen *screen, const char *var, char **val); 1762}; 1763 1764/** 1765 * Robust context driver extension. 1766 * 1767 * Existence of this extension means the driver can accept the 1768 * \c __DRI_CTX_FLAG_ROBUST_BUFFER_ACCESS flag and the 1769 * \c __DRI_CTX_ATTRIB_RESET_STRATEGY attribute in 1770 * \c __DRIdri2ExtensionRec::createContextAttribs. 1771 */ 1772#define __DRI2_ROBUSTNESS "DRI_Robustness" 1773#define __DRI2_ROBUSTNESS_VERSION 1 1774 1775typedef struct __DRIrobustnessExtensionRec __DRIrobustnessExtension; 1776struct __DRIrobustnessExtensionRec { 1777 __DRIextension base; 1778}; 1779 1780/** 1781 * No-error context driver extension (deprecated). 1782 * 1783 * Existence of this extension means the driver can accept the 1784 * __DRI_CTX_FLAG_NO_ERROR flag. 1785 * 1786 * This extension is deprecated, and modern loaders will not use it. Please 1787 * use __DRI2_RENDERER_HAS_NO_ERROR_CONTEXT instead. 1788 */ 1789#define __DRI2_NO_ERROR "DRI_NoError" 1790#define __DRI2_NO_ERROR_VERSION 1 1791 1792typedef struct __DRInoErrorExtensionRec { 1793 __DRIextension base; 1794} __DRInoErrorExtension; 1795 1796/* 1797 * Flush control driver extension. 1798 * 1799 * Existence of this extension means the driver can accept the 1800 * \c __DRI_CTX_ATTRIB_RELEASE_BEHAVIOR attribute in 1801 * \c __DRIdri2ExtensionRec::createContextAttribs. 1802 */ 1803#define __DRI2_FLUSH_CONTROL "DRI_FlushControl" 1804#define __DRI2_FLUSH_CONTROL_VERSION 1 1805 1806typedef struct __DRI2flushControlExtensionRec __DRI2flushControlExtension; 1807struct __DRI2flushControlExtensionRec { 1808 __DRIextension base; 1809}; 1810 1811/** 1812 * DRI config options extension. 1813 * 1814 * This extension provides the XML string containing driver options for use by 1815 * the loader in supporting the driconf application. 1816 * 1817 * v2: 1818 * - Add the getXml getter function which allows the driver more flexibility in 1819 * how the XML is provided. 1820 * - Deprecate the direct xml pointer. It is only provided as a fallback for 1821 * older versions of libGL and must not be used by clients that are aware of 1822 * the newer version. Future driver versions may set it to NULL. 1823 */ 1824#define __DRI_CONFIG_OPTIONS "DRI_ConfigOptions" 1825#define __DRI_CONFIG_OPTIONS_VERSION 2 1826 1827typedef struct __DRIconfigOptionsExtensionRec { 1828 __DRIextension base; 1829 const char *xml; /**< deprecated since v2, use getXml instead */ 1830 1831 /** 1832 * Get an XML string that describes available driver options for use by a 1833 * config application. 1834 * 1835 * The returned string must be heap-allocated. The caller is responsible for 1836 * freeing it. 1837 */ 1838 char *(*getXml)(const char *driver_name); 1839} __DRIconfigOptionsExtension; 1840 1841/** 1842 * This extension provides a driver vtable to a set of common driver helper 1843 * functions (driCoreExtension, driDRI2Extension) within the driver 1844 * implementation, as opposed to having to pass them through a global 1845 * variable. 1846 * 1847 * It is not intended to be public API to the actual loader, and the vtable 1848 * layout may change at any time. 1849 */ 1850#define __DRI_DRIVER_VTABLE "DRI_DriverVtable" 1851#define __DRI_DRIVER_VTABLE_VERSION 1 1852 1853typedef struct __DRIDriverVtableExtensionRec { 1854 __DRIextension base; 1855 const struct __DriverAPIRec *vtable; 1856} __DRIDriverVtableExtension; 1857 1858/** 1859 * Query renderer driver extension 1860 * 1861 * This allows the window system layer (either EGL or GLX) to query aspects of 1862 * hardware and driver support without creating a context. 1863 */ 1864#define __DRI2_RENDERER_QUERY "DRI_RENDERER_QUERY" 1865#define __DRI2_RENDERER_QUERY_VERSION 1 1866 1867#define __DRI2_RENDERER_VENDOR_ID 0x0000 1868#define __DRI2_RENDERER_DEVICE_ID 0x0001 1869#define __DRI2_RENDERER_VERSION 0x0002 1870#define __DRI2_RENDERER_ACCELERATED 0x0003 1871#define __DRI2_RENDERER_VIDEO_MEMORY 0x0004 1872#define __DRI2_RENDERER_UNIFIED_MEMORY_ARCHITECTURE 0x0005 1873#define __DRI2_RENDERER_PREFERRED_PROFILE 0x0006 1874#define __DRI2_RENDERER_OPENGL_CORE_PROFILE_VERSION 0x0007 1875#define __DRI2_RENDERER_OPENGL_COMPATIBILITY_PROFILE_VERSION 0x0008 1876#define __DRI2_RENDERER_OPENGL_ES_PROFILE_VERSION 0x0009 1877#define __DRI2_RENDERER_OPENGL_ES2_PROFILE_VERSION 0x000a 1878#define __DRI2_RENDERER_HAS_TEXTURE_3D 0x000b 1879/* Whether there is an sRGB format support for every supported 32-bit UNORM 1880 * color format. 1881 */ 1882#define __DRI2_RENDERER_HAS_FRAMEBUFFER_SRGB 0x000c 1883 1884/* Bitmaks of supported/available context priorities - must match 1885 * __EGL_CONTEXT_PRIORITY_LOW_BIT et al 1886 */ 1887#define __DRI2_RENDERER_HAS_CONTEXT_PRIORITY 0x000d 1888#define __DRI2_RENDERER_HAS_CONTEXT_PRIORITY_LOW (1 << 0) 1889#define __DRI2_RENDERER_HAS_CONTEXT_PRIORITY_MEDIUM (1 << 1) 1890#define __DRI2_RENDERER_HAS_CONTEXT_PRIORITY_HIGH (1 << 2) 1891 1892#define __DRI2_RENDERER_HAS_PROTECTED_CONTENT 0x000e 1893#define __DRI2_RENDERER_PREFER_BACK_BUFFER_REUSE 0x000f 1894#define __DRI2_RENDERER_HAS_NO_ERROR_CONTEXT 0x0010 1895 1896typedef struct __DRI2rendererQueryExtensionRec __DRI2rendererQueryExtension; 1897struct __DRI2rendererQueryExtensionRec { 1898 __DRIextension base; 1899 1900 int (*queryInteger)(__DRIscreen *screen, int attribute, unsigned int *val); 1901 int (*queryString)(__DRIscreen *screen, int attribute, const char **val); 1902}; 1903 1904/** 1905 * Image Loader extension. Drivers use this to allocate color buffers 1906 */ 1907 1908/** 1909 * See __DRIimageLoaderExtensionRec::getBuffers::buffer_mask. 1910 */ 1911enum __DRIimageBufferMask { 1912 __DRI_IMAGE_BUFFER_BACK = (1 << 0), 1913 __DRI_IMAGE_BUFFER_FRONT = (1 << 1), 1914 1915 /** 1916 * A buffer shared between application and compositor. The buffer may be 1917 * simultaneously accessed by each. 1918 * 1919 * A shared buffer is equivalent to an EGLSurface whose EGLConfig contains 1920 * EGL_MUTABLE_RENDER_BUFFER_BIT_KHR and whose active EGL_RENDER_BUFFER (as 1921 * opposed to any pending, requested change to EGL_RENDER_BUFFER) is 1922 * EGL_SINGLE_BUFFER. 1923 * 1924 * If buffer_mask contains __DRI_IMAGE_BUFFER_SHARED, then must contains no 1925 * other bits. As a corollary, a __DRIdrawable that has a "shared" buffer 1926 * has no front nor back buffer. 1927 * 1928 * The loader returns __DRI_IMAGE_BUFFER_SHARED in buffer_mask if and only 1929 * if: 1930 * - The loader supports __DRI_MUTABLE_RENDER_BUFFER_LOADER. 1931 * - The driver supports __DRI_MUTABLE_RENDER_BUFFER_DRIVER. 1932 * - The EGLConfig of the drawable EGLSurface contains 1933 * EGL_MUTABLE_RENDER_BUFFER_BIT_KHR. 1934 * - The EGLContext's EGL_RENDER_BUFFER is EGL_SINGLE_BUFFER. 1935 * Equivalently, the EGLSurface's active EGL_RENDER_BUFFER (as 1936 * opposed to any pending, requested change to EGL_RENDER_BUFFER) is 1937 * EGL_SINGLE_BUFFER. (See the EGL 1.5 and 1938 * EGL_KHR_mutable_render_buffer spec for details about "pending" vs 1939 * "active" EGL_RENDER_BUFFER state). 1940 * 1941 * A shared buffer is similar to a front buffer in that all rendering to the 1942 * buffer should appear promptly on the screen. It is different from 1943 * a front buffer in that its behavior is independent from the 1944 * GL_DRAW_BUFFER state. Specifically, if GL_DRAW_FRAMEBUFFER is 0 and the 1945 * __DRIdrawable's buffer_mask is __DRI_IMAGE_BUFFER_SHARED, then all 1946 * rendering should appear promptly on the screen if GL_DRAW_BUFFER is not 1947 * GL_NONE. 1948 * 1949 * The difference between a shared buffer and a front buffer is motivated 1950 * by the constraints of Android and OpenGL ES. OpenGL ES does not support 1951 * front-buffer rendering. Android's SurfaceFlinger protocol provides the 1952 * EGL driver only a back buffer and no front buffer. The shared buffer 1953 * mode introduced by EGL_KHR_mutable_render_buffer is a backdoor though 1954 * EGL that allows Android OpenGL ES applications to render to what is 1955 * effectively the front buffer, a backdoor that required no change to the 1956 * OpenGL ES API and little change to the SurfaceFlinger API. 1957 */ 1958 __DRI_IMAGE_BUFFER_SHARED = (1 << 2), 1959}; 1960 1961struct __DRIimageList { 1962 uint32_t image_mask; 1963 __DRIimage *back; 1964 __DRIimage *front; 1965}; 1966 1967#define __DRI_IMAGE_LOADER "DRI_IMAGE_LOADER" 1968#define __DRI_IMAGE_LOADER_VERSION 4 1969 1970struct __DRIimageLoaderExtensionRec { 1971 __DRIextension base; 1972 1973 /** 1974 * Allocate color buffers. 1975 * 1976 * \param driDrawable 1977 * \param width Width of allocated buffers 1978 * \param height Height of allocated buffers 1979 * \param format one of __DRI_IMAGE_FORMAT_* 1980 * \param stamp Address of variable to be updated when 1981 * getBuffers must be called again 1982 * \param loaderPrivate The loaderPrivate for driDrawable 1983 * \param buffer_mask Set of buffers to allocate. A bitmask of 1984 * __DRIimageBufferMask. 1985 * \param buffers Returned buffers 1986 */ 1987 int (*getBuffers)(__DRIdrawable *driDrawable, 1988 unsigned int format, 1989 uint32_t *stamp, 1990 void *loaderPrivate, 1991 uint32_t buffer_mask, 1992 struct __DRIimageList *buffers); 1993 1994 /** 1995 * Flush pending front-buffer rendering 1996 * 1997 * Any rendering that has been performed to the 1998 * fake front will be flushed to the front 1999 * 2000 * \param driDrawable Drawable whose front-buffer is to be flushed 2001 * \param loaderPrivate Loader's private data that was previously passed 2002 * into __DRIdri2ExtensionRec::createNewDrawable 2003 */ 2004 void (*flushFrontBuffer)(__DRIdrawable *driDrawable, void *loaderPrivate); 2005 2006 /** 2007 * Return a loader capability value. If the loader doesn't know the enum, 2008 * it will return 0. 2009 * 2010 * \since 2 2011 */ 2012 unsigned (*getCapability)(void *loaderPrivate, enum dri_loader_cap cap); 2013 2014 /** 2015 * Flush swap buffers 2016 * 2017 * Make sure any outstanding swap buffers have been submitted to the 2018 * device. 2019 * 2020 * \param driDrawable Drawable whose swaps need to be flushed 2021 * \param loaderPrivate Loader's private data that was previously passed 2022 * into __DRIdri2ExtensionRec::createNewDrawable 2023 * 2024 * \since 3 2025 */ 2026 void (*flushSwapBuffers)(__DRIdrawable *driDrawable, void *loaderPrivate); 2027 2028 /** 2029 * Clean up any loader state associated with an image. 2030 * 2031 * \param loaderPrivate Loader's private data that was previously passed 2032 * into a __DRIimageExtensionRec::createImage function 2033 * \since 4 2034 */ 2035 void (*destroyLoaderImageState)(void *loaderPrivate); 2036}; 2037 2038/** 2039 * DRI extension. 2040 */ 2041 2042#define __DRI_IMAGE_DRIVER "DRI_IMAGE_DRIVER" 2043#define __DRI_IMAGE_DRIVER_VERSION 1 2044 2045struct __DRIimageDriverExtensionRec { 2046 __DRIextension base; 2047 2048 /* Common DRI functions, shared with DRI2 */ 2049 __DRIcreateNewScreen2Func createNewScreen2; 2050 __DRIcreateNewDrawableFunc createNewDrawable; 2051 __DRIcreateContextAttribsFunc createContextAttribs; 2052 __DRIgetAPIMaskFunc getAPIMask; 2053}; 2054 2055/** 2056 * Background callable loader extension. 2057 * 2058 * Loaders expose this extension to indicate to drivers that they are capable 2059 * of handling callbacks from the driver's background drawing threads. 2060 */ 2061#define __DRI_BACKGROUND_CALLABLE "DRI_BackgroundCallable" 2062#define __DRI_BACKGROUND_CALLABLE_VERSION 1 2063 2064typedef struct __DRIbackgroundCallableExtensionRec __DRIbackgroundCallableExtension; 2065struct __DRIbackgroundCallableExtensionRec { 2066 __DRIextension base; 2067 2068 /** 2069 * Indicate that this thread is being used by the driver as a background 2070 * drawing thread which may make callbacks to the loader. 2071 * 2072 * \param loaderPrivate is the value that was passed to to the driver when 2073 * the context was created. This can be used by the loader to identify 2074 * which context any callbacks are associated with. 2075 * 2076 * If this function is called more than once from any given thread, each 2077 * subsequent call overrides the loaderPrivate data that was passed in the 2078 * previous call. The driver can take advantage of this to re-use a 2079 * background thread to perform drawing on behalf of multiple contexts. 2080 * 2081 * It is permissible for the driver to call this function from a 2082 * non-background thread (i.e. a thread that has already been bound to a 2083 * context using __DRIcoreExtensionRec::bindContext()); when this happens, 2084 * the \c loaderPrivate pointer must be equal to the pointer that was 2085 * passed to the driver when the currently bound context was created. 2086 * 2087 * This call should execute quickly enough that the driver can call it with 2088 * impunity whenever a background thread starts performing drawing 2089 * operations (e.g. it should just set a thread-local variable). 2090 */ 2091 void (*setBackgroundContext)(void *loaderPrivate); 2092 2093 /** 2094 * Indicate that it is multithread safe to use glthread. For GLX/EGL 2095 * platforms using Xlib, that involves calling XInitThreads, before 2096 * opening an X display. 2097 * 2098 * Note: only supported if extension version is at least 2. 2099 * 2100 * \param loaderPrivate is the value that was passed to to the driver when 2101 * the context was created. This can be used by the loader to identify 2102 * which context any callbacks are associated with. 2103 */ 2104 unsigned char (*isThreadSafe)(void *loaderPrivate); 2105}; 2106 2107/** 2108 * The driver portion of EGL_KHR_mutable_render_buffer. 2109 * 2110 * If the driver creates a __DRIconfig with 2111 * __DRI_ATTRIB_MUTABLE_RENDER_BUFFER, then it must support this extension. 2112 * 2113 * To support this extension: 2114 * 2115 * - The driver should create at least one __DRIconfig with 2116 * __DRI_ATTRIB_MUTABLE_RENDER_BUFFER. This is strongly recommended but 2117 * not required. 2118 * 2119 * - The driver must be able to handle __DRI_IMAGE_BUFFER_SHARED if 2120 * returned by __DRIimageLoaderExtension:getBuffers(). 2121 * 2122 * - When rendering to __DRI_IMAGE_BUFFER_SHARED, it must call 2123 * __DRImutableRenderBufferLoaderExtension::displaySharedBuffer() in 2124 * response to glFlush and glFinish. (This requirement is not documented 2125 * in EGL_KHR_mutable_render_buffer, but is a de-facto requirement in the 2126 * Android ecosystem. Android applications expect that glFlush will 2127 * immediately display the buffer when in shared buffer mode, and Android 2128 * drivers comply with this expectation). It :may: call 2129 * displaySharedBuffer() more often than required. 2130 * 2131 * - When rendering to __DRI_IMAGE_BUFFER_SHARED, it must ensure that the 2132 * buffer is always in a format compatible for display because the 2133 * display engine (usually SurfaceFlinger or hwcomposer) may display the 2134 * image at any time, even concurrently with 3D rendering. For example, 2135 * display hardware and the GL hardware may be able to access the buffer 2136 * simultaneously. In particular, if the buffer is compressed then take 2137 * care that SurfaceFlinger and hwcomposer can consume the compression 2138 * format. 2139 * 2140 * \see __DRI_IMAGE_BUFFER_SHARED 2141 * \see __DRI_ATTRIB_MUTABLE_RENDER_BUFFER 2142 * \see __DRI_MUTABLE_RENDER_BUFFER_LOADER 2143 */ 2144#define __DRI_MUTABLE_RENDER_BUFFER_DRIVER "DRI_MutableRenderBufferDriver" 2145#define __DRI_MUTABLE_RENDER_BUFFER_DRIVER_VERSION 1 2146 2147typedef struct __DRImutableRenderBufferDriverExtensionRec __DRImutableRenderBufferDriverExtension; 2148struct __DRImutableRenderBufferDriverExtensionRec { 2149 __DRIextension base; 2150}; 2151 2152/** 2153 * The loader portion of EGL_KHR_mutable_render_buffer. 2154 * 2155 * Requires loader extension DRI_IMAGE_LOADER, through which the loader sends 2156 * __DRI_IMAGE_BUFFER_SHARED to the driver. 2157 * 2158 * \see __DRI_MUTABLE_RENDER_BUFFER_DRIVER 2159 */ 2160#define __DRI_MUTABLE_RENDER_BUFFER_LOADER "DRI_MutableRenderBufferLoader" 2161#define __DRI_MUTABLE_RENDER_BUFFER_LOADER_VERSION 1 2162 2163typedef struct __DRImutableRenderBufferLoaderExtensionRec __DRImutableRenderBufferLoaderExtension; 2164struct __DRImutableRenderBufferLoaderExtensionRec { 2165 __DRIextension base; 2166 2167 /** 2168 * Inform the display engine (that is, SurfaceFlinger and/or hwcomposer) 2169 * that the __DRIdrawable has new content. 2170 * 2171 * The display engine may ignore this call, for example, if it continually 2172 * refreshes and displays the buffer on every frame, as in 2173 * EGL_ANDROID_front_buffer_auto_refresh. On the other extreme, the display 2174 * engine may refresh and display the buffer only in frames in which the 2175 * driver calls this. 2176 * 2177 * If the fence_fd is not -1, then the display engine will display the 2178 * buffer only after the fence signals. 2179 * 2180 * The drawable's current __DRIimageBufferMask, as returned by 2181 * __DRIimageLoaderExtension::getBuffers(), must be 2182 * __DRI_IMAGE_BUFFER_SHARED. 2183 */ 2184 void (*displaySharedBuffer)(__DRIdrawable *drawable, int fence_fd, 2185 void *loaderPrivate); 2186}; 2187 2188#endif 2189