2 * Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.
3 * Copyright 2007-2008 Red Hat, Inc.
4 * (C) Copyright IBM Corporation 2004
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8 * copy of this software and associated documentation files (the "Software"),
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24 * USE OR OTHER DEALINGS IN THE SOFTWARE.
28 * \file dri_interface.h
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.
35 * \author Kevin E. Martin <kevin@precisioninsight.com>
36 * \author Ian Romanick <idr@us.ibm.com>
37 * \author Kristian Høgsberg <krh@redhat.com>
40 #ifndef DRI_INTERFACE_H
41 #define DRI_INTERFACE_H
43 /* For archs with no drm.h */
44 #if defined(__APPLE__) || defined(__CYGWIN__) || defined(__GNU__)
45 #ifndef __NOT_HAVE_DRM_H
46 #define __NOT_HAVE_DRM_H
50 #ifndef __NOT_HAVE_DRM_H
53 typedef unsigned int drm_context_t
;
54 typedef unsigned int drm_drawable_t
;
55 typedef struct drm_clip_rect drm_clip_rect_t
;
59 * \name DRI interface structures
61 * The following structures define the interface between the GLX client
62 * side library and the DRI (direct rendering infrastructure).
65 typedef struct __DRIdisplayRec __DRIdisplay
;
66 typedef struct __DRIscreenRec __DRIscreen
;
67 typedef struct __DRIcontextRec __DRIcontext
;
68 typedef struct __DRIdrawableRec __DRIdrawable
;
69 typedef struct __DRIconfigRec __DRIconfig
;
70 typedef struct __DRIframebufferRec __DRIframebuffer
;
71 typedef struct __DRIversionRec __DRIversion
;
73 typedef struct __DRIcoreExtensionRec __DRIcoreExtension
;
74 typedef struct __DRIextensionRec __DRIextension
;
75 typedef struct __DRIcopySubBufferExtensionRec __DRIcopySubBufferExtension
;
76 typedef struct __DRIswapControlExtensionRec __DRIswapControlExtension
;
77 typedef struct __DRIframeTrackingExtensionRec __DRIframeTrackingExtension
;
78 typedef struct __DRImediaStreamCounterExtensionRec __DRImediaStreamCounterExtension
;
79 typedef struct __DRItexOffsetExtensionRec __DRItexOffsetExtension
;
80 typedef struct __DRItexBufferExtensionRec __DRItexBufferExtension
;
81 typedef struct __DRIlegacyExtensionRec __DRIlegacyExtension
;
82 typedef struct __DRIswrastExtensionRec __DRIswrastExtension
;
83 typedef struct __DRIbufferRec __DRIbuffer
;
84 typedef struct __DRIdri2ExtensionRec __DRIdri2Extension
;
85 typedef struct __DRIdri2LoaderExtensionRec __DRIdri2LoaderExtension
;
86 typedef struct __DRI2flushExtensionRec __DRI2flushExtension
;
87 typedef struct __DRI2throttleExtensionRec __DRI2throttleExtension
;
93 * Extension struct. Drivers 'inherit' from this struct by embedding
94 * it as the first element in the extension struct.
96 * We never break API in for a DRI extension. If we need to change
97 * the way things work in a non-backwards compatible manner, we
98 * introduce a new extension. During a transition period, we can
99 * leave both the old and the new extension in the driver, which
100 * allows us to move to the new interface without having to update the
101 * loader(s) in lock step.
103 * However, we can add entry points to an extension over time as long
104 * as we don't break the old ones. As we add entry points to an
105 * extension, we increase the version number. The corresponding
106 * #define can be used to guard code that accesses the new entry
107 * points at compile time and the version field in the extension
108 * struct can be used at run-time to determine how to use the
111 struct __DRIextensionRec
{
117 * The first set of extension are the screen extensions, returned by
118 * __DRIcore::getExtensions(). This entry point will return a list of
119 * extensions and the loader can use the ones it knows about by
120 * casting them to more specific extensions and advertising any GLX
121 * extensions the DRI extensions enables.
125 * Used by drivers to indicate support for setting the read drawable.
127 #define __DRI_READ_DRAWABLE "DRI_ReadDrawable"
128 #define __DRI_READ_DRAWABLE_VERSION 1
131 * Used by drivers that implement the GLX_MESA_copy_sub_buffer extension.
133 #define __DRI_COPY_SUB_BUFFER "DRI_CopySubBuffer"
134 #define __DRI_COPY_SUB_BUFFER_VERSION 1
135 struct __DRIcopySubBufferExtensionRec
{
137 void (*copySubBuffer
)(__DRIdrawable
*drawable
, int x
, int y
, int w
, int h
);
141 * Used by drivers that implement the GLX_SGI_swap_control or
142 * GLX_MESA_swap_control extension.
144 #define __DRI_SWAP_CONTROL "DRI_SwapControl"
145 #define __DRI_SWAP_CONTROL_VERSION 1
146 struct __DRIswapControlExtensionRec
{
148 void (*setSwapInterval
)(__DRIdrawable
*drawable
, unsigned int inteval
);
149 unsigned int (*getSwapInterval
)(__DRIdrawable
*drawable
);
153 * Used by drivers that implement the GLX_MESA_swap_frame_usage extension.
155 #define __DRI_FRAME_TRACKING "DRI_FrameTracking"
156 #define __DRI_FRAME_TRACKING_VERSION 1
157 struct __DRIframeTrackingExtensionRec
{
161 * Enable or disable frame usage tracking.
163 * \since Internal API version 20030317.
165 int (*frameTracking
)(__DRIdrawable
*drawable
, GLboolean enable
);
168 * Retrieve frame usage information.
170 * \since Internal API version 20030317.
172 int (*queryFrameTracking
)(__DRIdrawable
*drawable
,
173 int64_t * sbc
, int64_t * missedFrames
,
174 float * lastMissedUsage
, float * usage
);
179 * Used by drivers that implement the GLX_SGI_video_sync extension.
181 #define __DRI_MEDIA_STREAM_COUNTER "DRI_MediaStreamCounter"
182 #define __DRI_MEDIA_STREAM_COUNTER_VERSION 1
183 struct __DRImediaStreamCounterExtensionRec
{
187 * Wait for the MSC to equal target_msc, or, if that has already passed,
188 * the next time (MSC % divisor) is equal to remainder. If divisor is
189 * zero, the function will return as soon as MSC is greater than or equal
192 int (*waitForMSC
)(__DRIdrawable
*drawable
,
193 int64_t target_msc
, int64_t divisor
, int64_t remainder
,
194 int64_t * msc
, int64_t * sbc
);
197 * Get the number of vertical refreshes since some point in time before
198 * this function was first called (i.e., system start up).
200 int (*getDrawableMSC
)(__DRIscreen
*screen
, __DRIdrawable
*drawable
,
205 #define __DRI_TEX_OFFSET "DRI_TexOffset"
206 #define __DRI_TEX_OFFSET_VERSION 1
207 struct __DRItexOffsetExtensionRec
{
211 * Method to override base texture image with a driver specific 'offset'.
212 * The depth passed in allows e.g. to ignore the alpha channel of texture
213 * images where the non-alpha components don't occupy a whole texel.
215 * For GLX_EXT_texture_from_pixmap with AIGLX.
217 void (*setTexOffset
)(__DRIcontext
*pDRICtx
, GLint texname
,
218 unsigned long long offset
, GLint depth
, GLuint pitch
);
222 /* Valid values for format in the setTexBuffer2 function below. These
223 * values match the GLX tokens for compatibility reasons, but we
224 * define them here since the DRI interface can't depend on GLX. */
225 #define __DRI_TEXTURE_FORMAT_NONE 0x20D8
226 #define __DRI_TEXTURE_FORMAT_RGB 0x20D9
227 #define __DRI_TEXTURE_FORMAT_RGBA 0x20DA
229 #define __DRI_TEX_BUFFER "DRI_TexBuffer"
230 #define __DRI_TEX_BUFFER_VERSION 2
231 struct __DRItexBufferExtensionRec
{
235 * Method to override base texture image with the contents of a
238 * For GLX_EXT_texture_from_pixmap with AIGLX. Deprecated in favor of
239 * setTexBuffer2 in version 2 of this interface
241 void (*setTexBuffer
)(__DRIcontext
*pDRICtx
,
243 __DRIdrawable
*pDraw
);
246 * Method to override base texture image with the contents of a
247 * __DRIdrawable, including the required texture format attribute.
249 * For GLX_EXT_texture_from_pixmap with AIGLX.
251 void (*setTexBuffer2
)(__DRIcontext
*pDRICtx
,
254 __DRIdrawable
*pDraw
);
256 * Method to release texture buffer in case some special platform
259 * For GLX_EXT_texture_from_pixmap with AIGLX.
261 void (*releaseTexBuffer
)(__DRIcontext
*pDRICtx
,
263 __DRIdrawable
*pDraw
);
267 * Used by drivers that implement DRI2
269 #define __DRI2_FLUSH "DRI2_Flush"
270 #define __DRI2_FLUSH_VERSION 4
272 #define __DRI2_FLUSH_DRAWABLE (1 << 0) /* the drawable should be flushed. */
273 #define __DRI2_FLUSH_CONTEXT (1 << 1) /* glFlush should be called */
275 enum __DRI2throttleReason
{
276 __DRI2_THROTTLE_SWAPBUFFER
,
277 __DRI2_THROTTLE_COPYSUBBUFFER
,
278 __DRI2_THROTTLE_FLUSHFRONT
281 struct __DRI2flushExtensionRec
{
283 void (*flush
)(__DRIdrawable
*drawable
);
286 * Ask the driver to call getBuffers/getBuffersWithFormat before
287 * it starts rendering again.
289 * \param drawable the drawable to invalidate
293 void (*invalidate
)(__DRIdrawable
*drawable
);
296 * This function reduces the number of flushes in the driver by combining
297 * several operations into one call.
304 * \param context the context
305 * \param drawable the drawable to flush
306 * \param flags a combination of _DRI2_FLUSH_xxx flags
307 * \param throttle_reason the reason for throttling, 0 = no throttling
311 void (*flush_with_flags
)(__DRIcontext
*ctx
,
312 __DRIdrawable
*drawable
,
314 enum __DRI2throttleReason throttle_reason
);
319 * Extension that the driver uses to request
320 * throttle callbacks.
323 #define __DRI2_THROTTLE "DRI2_Throttle"
324 #define __DRI2_THROTTLE_VERSION 1
326 struct __DRI2throttleExtensionRec
{
328 void (*throttle
)(__DRIcontext
*ctx
,
329 __DRIdrawable
*drawable
,
330 enum __DRI2throttleReason reason
);
334 * XML document describing the configuration options supported by the
337 extern const char __driConfigOptions
[];
342 * The following extensions describe loader features that the DRI
343 * driver can make use of. Some of these are mandatory, such as the
344 * getDrawableInfo extension for DRI and the DRI Loader extensions for
345 * DRI2, while others are optional, and if present allow the driver to
346 * expose certain features. The loader pass in a NULL terminated
347 * array of these extensions to the driver in the createNewScreen
351 typedef struct __DRIgetDrawableInfoExtensionRec __DRIgetDrawableInfoExtension
;
352 typedef struct __DRIsystemTimeExtensionRec __DRIsystemTimeExtension
;
353 typedef struct __DRIdamageExtensionRec __DRIdamageExtension
;
354 typedef struct __DRIloaderExtensionRec __DRIloaderExtension
;
355 typedef struct __DRIswrastLoaderExtensionRec __DRIswrastLoaderExtension
;
359 * Callback to getDrawableInfo protocol
361 #define __DRI_GET_DRAWABLE_INFO "DRI_GetDrawableInfo"
362 #define __DRI_GET_DRAWABLE_INFO_VERSION 1
363 struct __DRIgetDrawableInfoExtensionRec
{
367 * This function is used to get information about the position, size, and
368 * clip rects of a drawable.
370 GLboolean (* getDrawableInfo
) ( __DRIdrawable
*drawable
,
371 unsigned int * index
, unsigned int * stamp
,
372 int * x
, int * y
, int * width
, int * height
,
373 int * numClipRects
, drm_clip_rect_t
** pClipRects
,
374 int * backX
, int * backY
,
375 int * numBackClipRects
, drm_clip_rect_t
** pBackClipRects
,
376 void *loaderPrivate
);
380 * Callback to get system time for media stream counter extensions.
382 #define __DRI_SYSTEM_TIME "DRI_SystemTime"
383 #define __DRI_SYSTEM_TIME_VERSION 1
384 struct __DRIsystemTimeExtensionRec
{
388 * Get the 64-bit unadjusted system time (UST).
390 int (*getUST
)(int64_t * ust
);
393 * Get the media stream counter (MSC) rate.
395 * Matching the definition in GLX_OML_sync_control, this function returns
396 * the rate of the "media stream counter". In practical terms, this is
397 * the frame refresh rate of the display.
399 GLboolean (*getMSCRate
)(__DRIdrawable
*draw
,
400 int32_t * numerator
, int32_t * denominator
,
401 void *loaderPrivate
);
407 #define __DRI_DAMAGE "DRI_Damage"
408 #define __DRI_DAMAGE_VERSION 1
409 struct __DRIdamageExtensionRec
{
413 * Reports areas of the given drawable which have been modified by the
416 * \param drawable which the drawing was done to.
417 * \param rects rectangles affected, with the drawable origin as the
419 * \param x X offset of the drawable within the screen (used in the
421 * \param y Y offset of the drawable within the screen.
422 * \param front_buffer boolean flag for whether the drawing to the
423 * drawable was actually done directly to the front buffer (instead
424 * of backing storage, for example)
425 * \param loaderPrivate the data passed in at createNewDrawable time
427 void (*reportDamage
)(__DRIdrawable
*draw
,
429 drm_clip_rect_t
*rects
, int num_rects
,
430 GLboolean front_buffer
,
431 void *loaderPrivate
);
434 #define __DRI_SWRAST_IMAGE_OP_DRAW 1
435 #define __DRI_SWRAST_IMAGE_OP_CLEAR 2
436 #define __DRI_SWRAST_IMAGE_OP_SWAP 3
439 * SWRast Loader extension.
441 #define __DRI_SWRAST_LOADER "DRI_SWRastLoader"
442 #define __DRI_SWRAST_LOADER_VERSION 1
443 struct __DRIswrastLoaderExtensionRec
{
447 * Drawable position and size
449 void (*getDrawableInfo
)(__DRIdrawable
*drawable
,
450 int *x
, int *y
, int *width
, int *height
,
451 void *loaderPrivate
);
454 * Put image to drawable
456 void (*putImage
)(__DRIdrawable
*drawable
, int op
,
457 int x
, int y
, int width
, int height
,
458 char *data
, void *loaderPrivate
);
461 * Get image from readable
463 void (*getImage
)(__DRIdrawable
*readable
,
464 int x
, int y
, int width
, int height
,
465 char *data
, void *loaderPrivate
);
469 * Invalidate loader extension. The presence of this extension
470 * indicates to the DRI driver that the loader will call invalidate in
471 * the __DRI2_FLUSH extension, whenever the needs to query for new
472 * buffers. This means that the DRI driver can drop the polling in
475 * The extension doesn't provide any functionality, it's only use to
476 * indicate to the driver that it can use the new semantics. A DRI
477 * driver can use this to switch between the different semantics or
478 * just refuse to initialize if this extension isn't present.
480 #define __DRI_USE_INVALIDATE "DRI_UseInvalidate"
481 #define __DRI_USE_INVALIDATE_VERSION 1
483 typedef struct __DRIuseInvalidateExtensionRec __DRIuseInvalidateExtension
;
484 struct __DRIuseInvalidateExtensionRec
{
489 * The remaining extensions describe driver extensions, immediately
490 * available interfaces provided by the driver. To start using the
491 * driver, dlsym() for the __DRI_DRIVER_EXTENSIONS symbol and look for
492 * the extension you need in the array.
494 #define __DRI_DRIVER_EXTENSIONS "__driDriverExtensions"
497 * Tokens for __DRIconfig attribs. A number of attributes defined by
498 * GLX or EGL standards are not in the table, as they must be provided
499 * by the loader. For example, FBConfig ID or visual ID, drawable type.
502 #define __DRI_ATTRIB_BUFFER_SIZE 1
503 #define __DRI_ATTRIB_LEVEL 2
504 #define __DRI_ATTRIB_RED_SIZE 3
505 #define __DRI_ATTRIB_GREEN_SIZE 4
506 #define __DRI_ATTRIB_BLUE_SIZE 5
507 #define __DRI_ATTRIB_LUMINANCE_SIZE 6
508 #define __DRI_ATTRIB_ALPHA_SIZE 7
509 #define __DRI_ATTRIB_ALPHA_MASK_SIZE 8
510 #define __DRI_ATTRIB_DEPTH_SIZE 9
511 #define __DRI_ATTRIB_STENCIL_SIZE 10
512 #define __DRI_ATTRIB_ACCUM_RED_SIZE 11
513 #define __DRI_ATTRIB_ACCUM_GREEN_SIZE 12
514 #define __DRI_ATTRIB_ACCUM_BLUE_SIZE 13
515 #define __DRI_ATTRIB_ACCUM_ALPHA_SIZE 14
516 #define __DRI_ATTRIB_SAMPLE_BUFFERS 15
517 #define __DRI_ATTRIB_SAMPLES 16
518 #define __DRI_ATTRIB_RENDER_TYPE 17
519 #define __DRI_ATTRIB_CONFIG_CAVEAT 18
520 #define __DRI_ATTRIB_CONFORMANT 19
521 #define __DRI_ATTRIB_DOUBLE_BUFFER 20
522 #define __DRI_ATTRIB_STEREO 21
523 #define __DRI_ATTRIB_AUX_BUFFERS 22
524 #define __DRI_ATTRIB_TRANSPARENT_TYPE 23
525 #define __DRI_ATTRIB_TRANSPARENT_INDEX_VALUE 24
526 #define __DRI_ATTRIB_TRANSPARENT_RED_VALUE 25
527 #define __DRI_ATTRIB_TRANSPARENT_GREEN_VALUE 26
528 #define __DRI_ATTRIB_TRANSPARENT_BLUE_VALUE 27
529 #define __DRI_ATTRIB_TRANSPARENT_ALPHA_VALUE 28
530 #define __DRI_ATTRIB_FLOAT_MODE 29
531 #define __DRI_ATTRIB_RED_MASK 30
532 #define __DRI_ATTRIB_GREEN_MASK 31
533 #define __DRI_ATTRIB_BLUE_MASK 32
534 #define __DRI_ATTRIB_ALPHA_MASK 33
535 #define __DRI_ATTRIB_MAX_PBUFFER_WIDTH 34
536 #define __DRI_ATTRIB_MAX_PBUFFER_HEIGHT 35
537 #define __DRI_ATTRIB_MAX_PBUFFER_PIXELS 36
538 #define __DRI_ATTRIB_OPTIMAL_PBUFFER_WIDTH 37
539 #define __DRI_ATTRIB_OPTIMAL_PBUFFER_HEIGHT 38
540 #define __DRI_ATTRIB_VISUAL_SELECT_GROUP 39
541 #define __DRI_ATTRIB_SWAP_METHOD 40
542 #define __DRI_ATTRIB_MAX_SWAP_INTERVAL 41
543 #define __DRI_ATTRIB_MIN_SWAP_INTERVAL 42
544 #define __DRI_ATTRIB_BIND_TO_TEXTURE_RGB 43
545 #define __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA 44
546 #define __DRI_ATTRIB_BIND_TO_MIPMAP_TEXTURE 45
547 #define __DRI_ATTRIB_BIND_TO_TEXTURE_TARGETS 46
548 #define __DRI_ATTRIB_YINVERTED 47
549 #define __DRI_ATTRIB_FRAMEBUFFER_SRGB_CAPABLE 48
551 /* __DRI_ATTRIB_RENDER_TYPE */
552 #define __DRI_ATTRIB_RGBA_BIT 0x01
553 #define __DRI_ATTRIB_COLOR_INDEX_BIT 0x02
554 #define __DRI_ATTRIB_LUMINANCE_BIT 0x04
556 /* __DRI_ATTRIB_CONFIG_CAVEAT */
557 #define __DRI_ATTRIB_SLOW_BIT 0x01
558 #define __DRI_ATTRIB_NON_CONFORMANT_CONFIG 0x02
560 /* __DRI_ATTRIB_TRANSPARENT_TYPE */
561 #define __DRI_ATTRIB_TRANSPARENT_RGB 0x00
562 #define __DRI_ATTRIB_TRANSPARENT_INDEX 0x01
564 /* __DRI_ATTRIB_BIND_TO_TEXTURE_TARGETS */
565 #define __DRI_ATTRIB_TEXTURE_1D_BIT 0x01
566 #define __DRI_ATTRIB_TEXTURE_2D_BIT 0x02
567 #define __DRI_ATTRIB_TEXTURE_RECTANGLE_BIT 0x04
570 * This extension defines the core DRI functionality.
572 #define __DRI_CORE "DRI_Core"
573 #define __DRI_CORE_VERSION 1
575 struct __DRIcoreExtensionRec
{
578 __DRIscreen
*(*createNewScreen
)(int screen
, int fd
,
579 unsigned int sarea_handle
,
580 const __DRIextension
**extensions
,
581 const __DRIconfig
***driverConfigs
,
582 void *loaderPrivate
);
584 void (*destroyScreen
)(__DRIscreen
*screen
);
586 const __DRIextension
**(*getExtensions
)(__DRIscreen
*screen
);
588 int (*getConfigAttrib
)(const __DRIconfig
*config
,
590 unsigned int *value
);
592 int (*indexConfigAttrib
)(const __DRIconfig
*config
, int index
,
593 unsigned int *attrib
, unsigned int *value
);
595 __DRIdrawable
*(*createNewDrawable
)(__DRIscreen
*screen
,
596 const __DRIconfig
*config
,
597 unsigned int drawable_id
,
599 void *loaderPrivate
);
601 void (*destroyDrawable
)(__DRIdrawable
*drawable
);
603 void (*swapBuffers
)(__DRIdrawable
*drawable
);
605 __DRIcontext
*(*createNewContext
)(__DRIscreen
*screen
,
606 const __DRIconfig
*config
,
607 __DRIcontext
*shared
,
608 void *loaderPrivate
);
610 int (*copyContext
)(__DRIcontext
*dest
,
614 void (*destroyContext
)(__DRIcontext
*context
);
616 int (*bindContext
)(__DRIcontext
*ctx
,
617 __DRIdrawable
*pdraw
,
618 __DRIdrawable
*pread
);
620 int (*unbindContext
)(__DRIcontext
*ctx
);
624 * Stored version of some component (i.e., server-side DRI module, kernel-side
628 * There are several data structures that explicitly store a major version,
629 * minor version, and patch level. These structures should be modified to
630 * have a \c __DRIversionRec instead.
632 struct __DRIversionRec
{
633 int major
; /**< Major version number. */
634 int minor
; /**< Minor version number. */
635 int patch
; /**< Patch-level. */
639 * Framebuffer information record. Used by libGL to communicate information
640 * about the framebuffer to the driver's \c __driCreateNewScreen function.
642 * In XFree86, most of this information is derrived from data returned by
643 * calling \c XF86DRIGetDeviceInfo.
645 * \sa XF86DRIGetDeviceInfo __DRIdisplayRec::createNewScreen
646 * __driUtilCreateNewScreen CallCreateNewScreen
648 * \bug This structure could be better named.
650 struct __DRIframebufferRec
{
651 unsigned char *base
; /**< Framebuffer base address in the CPU's
652 * address space. This value is calculated by
653 * calling \c drmMap on the framebuffer handle
654 * returned by \c XF86DRIGetDeviceInfo (or a
657 int size
; /**< Framebuffer size, in bytes. */
658 int stride
; /**< Number of bytes from one line to the next. */
659 int width
; /**< Pixel width of the framebuffer. */
660 int height
; /**< Pixel height of the framebuffer. */
661 int dev_priv_size
; /**< Size of the driver's dev-priv structure. */
662 void *dev_priv
; /**< Pointer to the driver's dev-priv structure. */
667 * This extension provides alternative screen, drawable and context
668 * constructors for legacy DRI functionality. This is used in
669 * conjunction with the core extension.
671 #define __DRI_LEGACY "DRI_Legacy"
672 #define __DRI_LEGACY_VERSION 1
674 struct __DRIlegacyExtensionRec
{
677 __DRIscreen
*(*createNewScreen
)(int screen
,
678 const __DRIversion
*ddx_version
,
679 const __DRIversion
*dri_version
,
680 const __DRIversion
*drm_version
,
681 const __DRIframebuffer
*frame_buffer
,
682 void *pSAREA
, int fd
,
683 const __DRIextension
**extensions
,
684 const __DRIconfig
***driver_configs
,
685 void *loaderPrivate
);
687 __DRIdrawable
*(*createNewDrawable
)(__DRIscreen
*screen
,
688 const __DRIconfig
*config
,
689 drm_drawable_t hwDrawable
,
690 int renderType
, const int *attrs
,
691 void *loaderPrivate
);
693 __DRIcontext
*(*createNewContext
)(__DRIscreen
*screen
,
694 const __DRIconfig
*config
,
696 __DRIcontext
*shared
,
697 drm_context_t hwContext
,
698 void *loaderPrivate
);
702 * This extension provides alternative screen, drawable and context
703 * constructors for swrast DRI functionality. This is used in
704 * conjunction with the core extension.
706 #define __DRI_SWRAST "DRI_SWRast"
707 #define __DRI_SWRAST_VERSION 3
709 struct __DRIswrastExtensionRec
{
712 __DRIscreen
*(*createNewScreen
)(int screen
,
713 const __DRIextension
**extensions
,
714 const __DRIconfig
***driver_configs
,
715 void *loaderPrivate
);
717 __DRIdrawable
*(*createNewDrawable
)(__DRIscreen
*screen
,
718 const __DRIconfig
*config
,
719 void *loaderPrivate
);
721 /* Since version 2 */
722 __DRIcontext
*(*createNewContextForAPI
)(__DRIscreen
*screen
,
724 const __DRIconfig
*config
,
725 __DRIcontext
*shared
,
729 * Create a context for a particular API with a set of attributes
733 * \sa __DRIdri2ExtensionRec::createContextAttribs
735 __DRIcontext
*(*createContextAttribs
)(__DRIscreen
*screen
,
737 const __DRIconfig
*config
,
738 __DRIcontext
*shared
,
739 unsigned num_attribs
,
740 const uint32_t *attribs
,
742 void *loaderPrivate
);
746 * DRI2 Loader extension.
748 #define __DRI_BUFFER_FRONT_LEFT 0
749 #define __DRI_BUFFER_BACK_LEFT 1
750 #define __DRI_BUFFER_FRONT_RIGHT 2
751 #define __DRI_BUFFER_BACK_RIGHT 3
752 #define __DRI_BUFFER_DEPTH 4
753 #define __DRI_BUFFER_STENCIL 5
754 #define __DRI_BUFFER_ACCUM 6
755 #define __DRI_BUFFER_FAKE_FRONT_LEFT 7
756 #define __DRI_BUFFER_FAKE_FRONT_RIGHT 8
757 #define __DRI_BUFFER_DEPTH_STENCIL 9 /**< Only available with DRI2 1.1 */
758 #define __DRI_BUFFER_HIZ 10
760 /* Inofficial and for internal use. Increase when adding a new buffer token. */
761 #define __DRI_BUFFER_COUNT 11
763 struct __DRIbufferRec
{
764 unsigned int attachment
;
771 #define __DRI_DRI2_LOADER "DRI_DRI2Loader"
772 #define __DRI_DRI2_LOADER_VERSION 3
773 struct __DRIdri2LoaderExtensionRec
{
776 __DRIbuffer
*(*getBuffers
)(__DRIdrawable
*driDrawable
,
777 int *width
, int *height
,
778 unsigned int *attachments
, int count
,
779 int *out_count
, void *loaderPrivate
);
782 * Flush pending front-buffer rendering
784 * Any rendering that has been performed to the
785 * \c __DRI_BUFFER_FAKE_FRONT_LEFT will be flushed to the
786 * \c __DRI_BUFFER_FRONT_LEFT.
788 * \param driDrawable Drawable whose front-buffer is to be flushed
789 * \param loaderPrivate Loader's private data that was previously passed
790 * into __DRIdri2ExtensionRec::createNewDrawable
792 void (*flushFrontBuffer
)(__DRIdrawable
*driDrawable
, void *loaderPrivate
);
796 * Get list of buffers from the server
798 * Gets a list of buffer for the specified set of attachments. Unlike
799 * \c ::getBuffers, this function takes a list of attachments paired with
800 * opaque \c unsigned \c int value describing the format of the buffer.
801 * It is the responsibility of the caller to know what the service that
802 * allocates the buffers will expect to receive for the format.
804 * \param driDrawable Drawable whose buffers are being queried.
805 * \param width Output where the width of the buffers is stored.
806 * \param height Output where the height of the buffers is stored.
807 * \param attachments List of pairs of attachment ID and opaque format
808 * requested for the drawable.
809 * \param count Number of attachment / format pairs stored in
811 * \param loaderPrivate Loader's private data that was previously passed
812 * into __DRIdri2ExtensionRec::createNewDrawable.
814 __DRIbuffer
*(*getBuffersWithFormat
)(__DRIdrawable
*driDrawable
,
815 int *width
, int *height
,
816 unsigned int *attachments
, int count
,
817 int *out_count
, void *loaderPrivate
);
821 * This extension provides alternative screen, drawable and context
822 * constructors for DRI2.
824 #define __DRI_DRI2 "DRI_DRI2"
825 #define __DRI_DRI2_VERSION 3
827 #define __DRI_API_OPENGL 0 /**< OpenGL compatibility profile */
828 #define __DRI_API_GLES 1 /**< OpenGL ES 1.x */
829 #define __DRI_API_GLES2 2 /**< OpenGL ES 2.0 or 3.0 */
830 #define __DRI_API_OPENGL_CORE 3 /**< OpenGL 3.2+ core profile */
832 #define __DRI_CTX_ATTRIB_MAJOR_VERSION 0
833 #define __DRI_CTX_ATTRIB_MINOR_VERSION 1
834 #define __DRI_CTX_ATTRIB_FLAGS 2
837 * \requires __DRI2_ROBUSTNESS.
839 #define __DRI_CTX_ATTRIB_RESET_STRATEGY 3
841 #define __DRI_CTX_FLAG_DEBUG 0x00000001
842 #define __DRI_CTX_FLAG_FORWARD_COMPATIBLE 0x00000002
845 * \requires __DRI2_ROBUSTNESS.
847 #define __DRI_CTX_FLAG_ROBUST_BUFFER_ACCESS 0x00000004
850 * \name Context reset strategies.
853 #define __DRI_CTX_RESET_NO_NOTIFICATION 0
854 #define __DRI_CTX_RESET_LOSE_CONTEXT 1
858 * \name Reasons that __DRIdri2Extension::createContextAttribs might fail
862 #define __DRI_CTX_ERROR_SUCCESS 0
864 /** Memory allocation failure */
865 #define __DRI_CTX_ERROR_NO_MEMORY 1
867 /** Client requested an API (e.g., OpenGL ES 2.0) that the driver can't do. */
868 #define __DRI_CTX_ERROR_BAD_API 2
870 /** Client requested an API version that the driver can't do. */
871 #define __DRI_CTX_ERROR_BAD_VERSION 3
873 /** Client requested a flag or combination of flags the driver can't do. */
874 #define __DRI_CTX_ERROR_BAD_FLAG 4
876 /** Client requested an attribute the driver doesn't understand. */
877 #define __DRI_CTX_ERROR_UNKNOWN_ATTRIBUTE 5
879 /** Client requested a flag the driver doesn't understand. */
880 #define __DRI_CTX_ERROR_UNKNOWN_FLAG 6
883 struct __DRIdri2ExtensionRec
{
886 __DRIscreen
*(*createNewScreen
)(int screen
, int fd
,
887 const __DRIextension
**extensions
,
888 const __DRIconfig
***driver_configs
,
889 void *loaderPrivate
);
891 __DRIdrawable
*(*createNewDrawable
)(__DRIscreen
*screen
,
892 const __DRIconfig
*config
,
893 void *loaderPrivate
);
895 __DRIcontext
*(*createNewContext
)(__DRIscreen
*screen
,
896 const __DRIconfig
*config
,
897 __DRIcontext
*shared
,
898 void *loaderPrivate
);
900 /* Since version 2 */
901 unsigned int (*getAPIMask
)(__DRIscreen
*screen
);
903 __DRIcontext
*(*createNewContextForAPI
)(__DRIscreen
*screen
,
905 const __DRIconfig
*config
,
906 __DRIcontext
*shared
,
909 __DRIbuffer
*(*allocateBuffer
)(__DRIscreen
*screen
,
910 unsigned int attachment
,
914 void (*releaseBuffer
)(__DRIscreen
*screen
,
915 __DRIbuffer
*buffer
);
918 * Create a context for a particular API with a set of attributes
922 * \sa __DRIswrastExtensionRec::createContextAttribs
924 __DRIcontext
*(*createContextAttribs
)(__DRIscreen
*screen
,
926 const __DRIconfig
*config
,
927 __DRIcontext
*shared
,
928 unsigned num_attribs
,
929 const uint32_t *attribs
,
931 void *loaderPrivate
);
936 * This extension provides functionality to enable various EGLImage
939 #define __DRI_IMAGE "DRI_IMAGE"
940 #define __DRI_IMAGE_VERSION 5
943 * These formats correspond to the similarly named MESA_FORMAT_*
944 * tokens, except in the native endian of the CPU. For example, on
945 * little endian __DRI_IMAGE_FORMAT_XRGB8888 corresponds to
946 * MESA_FORMAT_XRGB8888, but MESA_FORMAT_XRGB8888_REV on big endian.
948 * __DRI_IMAGE_FORMAT_NONE is for images that aren't directly usable
949 * by the driver (YUV planar formats) but serve as a base image for
950 * creating sub-images for the different planes within the image.
952 * R8, GR88 and NONE should not be used with createImageFormName or
953 * createImage, and are returned by query from sub images created with
954 * createImageFromNames (NONE, see above) and fromPlane (R8 & GR88).
956 #define __DRI_IMAGE_FORMAT_RGB565 0x1001
957 #define __DRI_IMAGE_FORMAT_XRGB8888 0x1002
958 #define __DRI_IMAGE_FORMAT_ARGB8888 0x1003
959 #define __DRI_IMAGE_FORMAT_ABGR8888 0x1004
960 #define __DRI_IMAGE_FORMAT_XBGR8888 0x1005
961 #define __DRI_IMAGE_FORMAT_R8 0x1006 /* Since version 5 */
962 #define __DRI_IMAGE_FORMAT_GR88 0x1007
963 #define __DRI_IMAGE_FORMAT_NONE 0x1008
965 #define __DRI_IMAGE_USE_SHARE 0x0001
966 #define __DRI_IMAGE_USE_SCANOUT 0x0002
967 #define __DRI_IMAGE_USE_CURSOR 0x0004 /* Depricated */
971 * Four CC formats that matches with WL_DRM_FORMAT_* from wayland_drm.h
972 * and GBM_FORMAT_* from gbm.h, used with createImageFromNames.
977 #define __DRI_IMAGE_FOURCC_RGB565 0x36314752
978 #define __DRI_IMAGE_FOURCC_ARGB8888 0x34325241
979 #define __DRI_IMAGE_FOURCC_XRGB8888 0x34325258
980 #define __DRI_IMAGE_FOURCC_ABGR8888 0x34324241
981 #define __DRI_IMAGE_FOURCC_XBGR8888 0x34324258
982 #define __DRI_IMAGE_FOURCC_YUV410 0x39565559
983 #define __DRI_IMAGE_FOURCC_YUV411 0x31315559
984 #define __DRI_IMAGE_FOURCC_YUV420 0x32315559
985 #define __DRI_IMAGE_FOURCC_YUV422 0x36315559
986 #define __DRI_IMAGE_FOURCC_YUV444 0x34325559
987 #define __DRI_IMAGE_FOURCC_NV12 0x3231564e
988 #define __DRI_IMAGE_FOURCC_NV16 0x3631564e
989 #define __DRI_IMAGE_FOURCC_YUYV 0x56595559
993 * Queryable on images created by createImageFromNames.
995 * RGB and RGBA are may be usable directly as images but its still
996 * recommended to call fromPlanar with plane == 0.
998 * Y_U_V, Y_UV and Y_XUXV all requires call to fromPlanar to create
999 * usable sub-images, sampling from images return raw YUV data and
1000 * color conversion needs to be done in the shader.
1005 #define __DRI_IMAGE_COMPONENTS_RGB 0x3001
1006 #define __DRI_IMAGE_COMPONENTS_RGBA 0x3002
1007 #define __DRI_IMAGE_COMPONENTS_Y_U_V 0x3003
1008 #define __DRI_IMAGE_COMPONENTS_Y_UV 0x3004
1009 #define __DRI_IMAGE_COMPONENTS_Y_XUXV 0x3005
1013 * queryImage attributes
1016 #define __DRI_IMAGE_ATTRIB_STRIDE 0x2000
1017 #define __DRI_IMAGE_ATTRIB_HANDLE 0x2001
1018 #define __DRI_IMAGE_ATTRIB_NAME 0x2002
1019 #define __DRI_IMAGE_ATTRIB_FORMAT 0x2003 /* available in versions 3+ */
1020 #define __DRI_IMAGE_ATTRIB_WIDTH 0x2004 /* available in versions 4+ */
1021 #define __DRI_IMAGE_ATTRIB_HEIGHT 0x2005
1022 #define __DRI_IMAGE_ATTRIB_COMPONENTS 0x2006 /* available in versions 5+ */
1024 typedef struct __DRIimageRec __DRIimage
;
1025 typedef struct __DRIimageExtensionRec __DRIimageExtension
;
1026 struct __DRIimageExtensionRec
{
1027 __DRIextension base
;
1029 __DRIimage
*(*createImageFromName
)(__DRIscreen
*screen
,
1030 int width
, int height
, int format
,
1031 int name
, int pitch
,
1032 void *loaderPrivate
);
1034 __DRIimage
*(*createImageFromRenderbuffer
)(__DRIcontext
*context
,
1036 void *loaderPrivate
);
1038 void (*destroyImage
)(__DRIimage
*image
);
1040 __DRIimage
*(*createImage
)(__DRIscreen
*screen
,
1041 int width
, int height
, int format
,
1043 void *loaderPrivate
);
1045 GLboolean (*queryImage
)(__DRIimage
*image
, int attrib
, int *value
);
1048 * The new __DRIimage will share the content with the old one, see dup(2).
1050 __DRIimage
*(*dupImage
)(__DRIimage
*image
, void *loaderPrivate
);
1053 * Validate that a __DRIimage can be used a certain way.
1057 GLboolean (*validateUsage
)(__DRIimage
*image
, unsigned int use
);
1060 * Unlike createImageFromName __DRI_IMAGE_FORMAT is not but instead
1061 * __DRI_IMAGE_FOURCC and strides are in bytes not pixels. Stride is
1062 * also per block and not per pixel (for non-RGB, see gallium blocks).
1066 __DRIimage
*(*createImageFromNames
)(__DRIscreen
*screen
,
1067 int width
, int height
, int fourcc
,
1068 int *names
, int num_names
,
1069 int *strides
, int *offsets
,
1070 void *loaderPrivate
);
1073 * Create an image out of a sub-region of a parent image. This
1074 * entry point lets us create individual __DRIimages for different
1075 * planes in a planar buffer (typically yuv), for example. While a
1076 * sub-image shares the underlying buffer object with the parent
1077 * image and other sibling sub-images, the life times of parent and
1078 * sub-images are not dependent. Destroying the parent or a
1079 * sub-image doesn't affect other images. The underlying buffer
1080 * object is free when no __DRIimage remains that references it.
1082 * Sub-images may overlap, but rendering to overlapping sub-images
1087 __DRIimage
*(*fromPlanar
)(__DRIimage
*image
, int plane
,
1088 void *loaderPrivate
);
1093 * This extension must be implemented by the loader and passed to the
1094 * driver at screen creation time. The EGLImage entry points in the
1095 * various client APIs take opaque EGLImage handles and use this
1096 * extension to map them to a __DRIimage. At version 1, this
1097 * extensions allows mapping EGLImage pointers to __DRIimage pointers,
1098 * but future versions could support other EGLImage-like, opaque types
1099 * with new lookup functions.
1101 #define __DRI_IMAGE_LOOKUP "DRI_IMAGE_LOOKUP"
1102 #define __DRI_IMAGE_LOOKUP_VERSION 1
1104 typedef struct __DRIimageLookupExtensionRec __DRIimageLookupExtension
;
1105 struct __DRIimageLookupExtensionRec
{
1106 __DRIextension base
;
1108 __DRIimage
*(*lookupEGLImage
)(__DRIscreen
*screen
, void *image
,
1109 void *loaderPrivate
);
1113 * This extension allows for common DRI2 options
1115 #define __DRI2_CONFIG_QUERY "DRI_CONFIG_QUERY"
1116 #define __DRI2_CONFIG_QUERY_VERSION 1
1118 typedef struct __DRI2configQueryExtensionRec __DRI2configQueryExtension
;
1119 struct __DRI2configQueryExtensionRec
{
1120 __DRIextension base
;
1122 int (*configQueryb
)(__DRIscreen
*screen
, const char *var
, GLboolean
*val
);
1123 int (*configQueryi
)(__DRIscreen
*screen
, const char *var
, GLint
*val
);
1124 int (*configQueryf
)(__DRIscreen
*screen
, const char *var
, GLfloat
*val
);
1128 * Robust context driver extension.
1130 * Existence of this extension means the driver can accept the
1131 * \c __DRI_CTX_FLAG_ROBUST_BUFFER_ACCESS flag and the
1132 * \c __DRI_CTX_ATTRIB_RESET_STRATEGY attribute in
1133 * \c __DRIdri2ExtensionRec::createContextAttribs.
1135 #define __DRI2_ROBUSTNESS "DRI_Robustness"
1136 #define __DRI2_ROBUSTNESS_VERSION 1
1138 typedef struct __DRIrobustnessExtensionRec __DRIrobustnessExtension
;
1139 struct __DRIrobustnessExtensionRec
{
1140 __DRIextension base
;