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__)
47 typedef unsigned int drm_context_t
;
48 typedef unsigned int drm_drawable_t
;
49 typedef struct drm_clip_rect drm_clip_rect_t
;
53 * \name DRI interface structures
55 * The following structures define the interface between the GLX client
56 * side library and the DRI (direct rendering infrastructure).
59 typedef struct __DRIdisplayRec __DRIdisplay
;
60 typedef struct __DRIscreenRec __DRIscreen
;
61 typedef struct __DRIcontextRec __DRIcontext
;
62 typedef struct __DRIdrawableRec __DRIdrawable
;
63 typedef struct __DRIconfigRec __DRIconfig
;
64 typedef struct __DRIframebufferRec __DRIframebuffer
;
65 typedef struct __DRIversionRec __DRIversion
;
67 typedef struct __DRIcoreExtensionRec __DRIcoreExtension
;
68 typedef struct __DRIextensionRec __DRIextension
;
69 typedef struct __DRIcopySubBufferExtensionRec __DRIcopySubBufferExtension
;
70 typedef struct __DRIswapControlExtensionRec __DRIswapControlExtension
;
71 typedef struct __DRIallocateExtensionRec __DRIallocateExtension
;
72 typedef struct __DRIframeTrackingExtensionRec __DRIframeTrackingExtension
;
73 typedef struct __DRImediaStreamCounterExtensionRec __DRImediaStreamCounterExtension
;
74 typedef struct __DRItexOffsetExtensionRec __DRItexOffsetExtension
;
75 typedef struct __DRItexBufferExtensionRec __DRItexBufferExtension
;
76 typedef struct __DRIlegacyExtensionRec __DRIlegacyExtension
;
77 typedef struct __DRIswrastExtensionRec __DRIswrastExtension
;
78 typedef struct __DRIbufferRec __DRIbuffer
;
79 typedef struct __DRIdri2ExtensionRec __DRIdri2Extension
;
80 typedef struct __DRIdri2LoaderExtensionRec __DRIdri2LoaderExtension
;
81 typedef struct __DRI2flushExtensionRec __DRI2flushExtension
;
87 * Extension struct. Drivers 'inherit' from this struct by embedding
88 * it as the first element in the extension struct.
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.
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
105 struct __DRIextensionRec
{
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.
119 * Used by drivers to indicate support for setting the read drawable.
121 #define __DRI_READ_DRAWABLE "DRI_ReadDrawable"
122 #define __DRI_READ_DRAWABLE_VERSION 1
125 * Used by drivers that implement the GLX_MESA_copy_sub_buffer extension.
127 #define __DRI_COPY_SUB_BUFFER "DRI_CopySubBuffer"
128 #define __DRI_COPY_SUB_BUFFER_VERSION 1
129 struct __DRIcopySubBufferExtensionRec
{
131 void (*copySubBuffer
)(__DRIdrawable
*drawable
, int x
, int y
, int w
, int h
);
135 * Used by drivers that implement the GLX_SGI_swap_control or
136 * GLX_MESA_swap_control extension.
138 #define __DRI_SWAP_CONTROL "DRI_SwapControl"
139 #define __DRI_SWAP_CONTROL_VERSION 1
140 struct __DRIswapControlExtensionRec
{
142 void (*setSwapInterval
)(__DRIdrawable
*drawable
, unsigned int inteval
);
143 unsigned int (*getSwapInterval
)(__DRIdrawable
*drawable
);
147 * Used by drivers that implement the GLX_MESA_allocate_memory.
149 #define __DRI_ALLOCATE "DRI_Allocate"
150 #define __DRI_ALLOCATE_VERSION 1
151 struct __DRIallocateExtensionRec
{
154 void *(*allocateMemory
)(__DRIscreen
*screen
, GLsizei size
,
155 GLfloat readfreq
, GLfloat writefreq
,
158 void (*freeMemory
)(__DRIscreen
*screen
, GLvoid
*pointer
);
160 GLuint (*memoryOffset
)(__DRIscreen
*screen
, const GLvoid
*pointer
);
164 * Used by drivers that implement the GLX_MESA_swap_frame_usage extension.
166 #define __DRI_FRAME_TRACKING "DRI_FrameTracking"
167 #define __DRI_FRAME_TRACKING_VERSION 1
168 struct __DRIframeTrackingExtensionRec
{
172 * Enable or disable frame usage tracking.
174 * \since Internal API version 20030317.
176 int (*frameTracking
)(__DRIdrawable
*drawable
, GLboolean enable
);
179 * Retrieve frame usage information.
181 * \since Internal API version 20030317.
183 int (*queryFrameTracking
)(__DRIdrawable
*drawable
,
184 int64_t * sbc
, int64_t * missedFrames
,
185 float * lastMissedUsage
, float * usage
);
190 * Used by drivers that implement the GLX_SGI_video_sync extension.
192 #define __DRI_MEDIA_STREAM_COUNTER "DRI_MediaStreamCounter"
193 #define __DRI_MEDIA_STREAM_COUNTER_VERSION 1
194 struct __DRImediaStreamCounterExtensionRec
{
198 * Wait for the MSC to equal target_msc, or, if that has already passed,
199 * the next time (MSC % divisor) is equal to remainder. If divisor is
200 * zero, the function will return as soon as MSC is greater than or equal
203 int (*waitForMSC
)(__DRIdrawable
*drawable
,
204 int64_t target_msc
, int64_t divisor
, int64_t remainder
,
205 int64_t * msc
, int64_t * sbc
);
208 * Get the number of vertical refreshes since some point in time before
209 * this function was first called (i.e., system start up).
211 int (*getDrawableMSC
)(__DRIscreen
*screen
, __DRIdrawable
*drawable
,
216 #define __DRI_TEX_OFFSET "DRI_TexOffset"
217 #define __DRI_TEX_OFFSET_VERSION 1
218 struct __DRItexOffsetExtensionRec
{
222 * Method to override base texture image with a driver specific 'offset'.
223 * The depth passed in allows e.g. to ignore the alpha channel of texture
224 * images where the non-alpha components don't occupy a whole texel.
226 * For GLX_EXT_texture_from_pixmap with AIGLX.
228 void (*setTexOffset
)(__DRIcontext
*pDRICtx
, GLint texname
,
229 unsigned long long offset
, GLint depth
, GLuint pitch
);
233 #define __DRI_TEX_BUFFER "DRI_TexBuffer"
234 #define __DRI_TEX_BUFFER_VERSION 2
235 struct __DRItexBufferExtensionRec
{
239 * Method to override base texture image with the contents of a
242 * For GLX_EXT_texture_from_pixmap with AIGLX. Deprecated in favor of
243 * setTexBuffer2 in version 2 of this interface
245 void (*setTexBuffer
)(__DRIcontext
*pDRICtx
,
247 __DRIdrawable
*pDraw
);
250 * Method to override base texture image with the contents of a
251 * __DRIdrawable, including the required texture format attribute.
253 * For GLX_EXT_texture_from_pixmap with AIGLX.
255 void (*setTexBuffer2
)(__DRIcontext
*pDRICtx
,
258 __DRIdrawable
*pDraw
);
262 * Used by drivers that implement DRI2
264 #define __DRI2_FLUSH "DRI2_Flush"
265 #define __DRI2_FLUSH_VERSION 2
266 struct __DRI2flushExtensionRec
{
268 void (*flush
)(__DRIdrawable
*drawable
);
271 * Flush all rendering queue in the driver to the drm and
272 * invalidate all buffers. The driver will call out to
273 * getBuffers/getBuffersWithFormat before it starts rendering
276 * \param drawable the drawable to flush and invalidate
280 void (*flushInvalidate
)(__DRIdrawable
*drawable
);
285 * XML document describing the configuration options supported by the
288 extern const char __driConfigOptions
[];
293 * The following extensions describe loader features that the DRI
294 * driver can make use of. Some of these are mandatory, such as the
295 * getDrawableInfo extension for DRI and the DRI Loader extensions for
296 * DRI2, while others are optional, and if present allow the driver to
297 * expose certain features. The loader pass in a NULL terminated
298 * array of these extensions to the driver in the createNewScreen
302 typedef struct __DRIgetDrawableInfoExtensionRec __DRIgetDrawableInfoExtension
;
303 typedef struct __DRIsystemTimeExtensionRec __DRIsystemTimeExtension
;
304 typedef struct __DRIdamageExtensionRec __DRIdamageExtension
;
305 typedef struct __DRIloaderExtensionRec __DRIloaderExtension
;
306 typedef struct __DRIswrastLoaderExtensionRec __DRIswrastLoaderExtension
;
310 * Callback to getDrawableInfo protocol
312 #define __DRI_GET_DRAWABLE_INFO "DRI_GetDrawableInfo"
313 #define __DRI_GET_DRAWABLE_INFO_VERSION 1
314 struct __DRIgetDrawableInfoExtensionRec
{
318 * This function is used to get information about the position, size, and
319 * clip rects of a drawable.
321 GLboolean (* getDrawableInfo
) ( __DRIdrawable
*drawable
,
322 unsigned int * index
, unsigned int * stamp
,
323 int * x
, int * y
, int * width
, int * height
,
324 int * numClipRects
, drm_clip_rect_t
** pClipRects
,
325 int * backX
, int * backY
,
326 int * numBackClipRects
, drm_clip_rect_t
** pBackClipRects
,
327 void *loaderPrivate
);
331 * Callback to get system time for media stream counter extensions.
333 #define __DRI_SYSTEM_TIME "DRI_SystemTime"
334 #define __DRI_SYSTEM_TIME_VERSION 1
335 struct __DRIsystemTimeExtensionRec
{
339 * Get the 64-bit unadjusted system time (UST).
341 int (*getUST
)(int64_t * ust
);
344 * Get the media stream counter (MSC) rate.
346 * Matching the definition in GLX_OML_sync_control, this function returns
347 * the rate of the "media stream counter". In practical terms, this is
348 * the frame refresh rate of the display.
350 GLboolean (*getMSCRate
)(__DRIdrawable
*draw
,
351 int32_t * numerator
, int32_t * denominator
,
352 void *loaderPrivate
);
358 #define __DRI_DAMAGE "DRI_Damage"
359 #define __DRI_DAMAGE_VERSION 1
360 struct __DRIdamageExtensionRec
{
364 * Reports areas of the given drawable which have been modified by the
367 * \param drawable which the drawing was done to.
368 * \param rects rectangles affected, with the drawable origin as the
370 * \param x X offset of the drawable within the screen (used in the
372 * \param y Y offset of the drawable within the screen.
373 * \param front_buffer boolean flag for whether the drawing to the
374 * drawable was actually done directly to the front buffer (instead
375 * of backing storage, for example)
376 * \param loaderPrivate the data passed in at createNewDrawable time
378 void (*reportDamage
)(__DRIdrawable
*draw
,
380 drm_clip_rect_t
*rects
, int num_rects
,
381 GLboolean front_buffer
,
382 void *loaderPrivate
);
385 #define __DRI_SWRAST_IMAGE_OP_DRAW 1
386 #define __DRI_SWRAST_IMAGE_OP_CLEAR 2
387 #define __DRI_SWRAST_IMAGE_OP_SWAP 3
390 * SWRast Loader extension.
392 #define __DRI_SWRAST_LOADER "DRI_SWRastLoader"
393 #define __DRI_SWRAST_LOADER_VERSION 1
394 struct __DRIswrastLoaderExtensionRec
{
398 * Drawable position and size
400 void (*getDrawableInfo
)(__DRIdrawable
*drawable
,
401 int *x
, int *y
, int *width
, int *height
,
402 void *loaderPrivate
);
405 * Put image to drawable
407 void (*putImage
)(__DRIdrawable
*drawable
, int op
,
408 int x
, int y
, int width
, int height
, char *data
,
409 void *loaderPrivate
);
412 * Get image from drawable
414 void (*getImage
)(__DRIdrawable
*drawable
,
415 int x
, int y
, int width
, int height
, char *data
,
416 void *loaderPrivate
);
420 * The remaining extensions describe driver extensions, immediately
421 * available interfaces provided by the driver. To start using the
422 * driver, dlsym() for the __DRI_DRIVER_EXTENSIONS symbol and look for
423 * the extension you need in the array.
425 #define __DRI_DRIVER_EXTENSIONS "__driDriverExtensions"
428 * Tokens for __DRIconfig attribs. A number of attributes defined by
429 * GLX or EGL standards are not in the table, as they must be provided
430 * by the loader. For example, FBConfig ID or visual ID, drawable type.
433 #define __DRI_ATTRIB_BUFFER_SIZE 1
434 #define __DRI_ATTRIB_LEVEL 2
435 #define __DRI_ATTRIB_RED_SIZE 3
436 #define __DRI_ATTRIB_GREEN_SIZE 4
437 #define __DRI_ATTRIB_BLUE_SIZE 5
438 #define __DRI_ATTRIB_LUMINANCE_SIZE 6
439 #define __DRI_ATTRIB_ALPHA_SIZE 7
440 #define __DRI_ATTRIB_ALPHA_MASK_SIZE 8
441 #define __DRI_ATTRIB_DEPTH_SIZE 9
442 #define __DRI_ATTRIB_STENCIL_SIZE 10
443 #define __DRI_ATTRIB_ACCUM_RED_SIZE 11
444 #define __DRI_ATTRIB_ACCUM_GREEN_SIZE 12
445 #define __DRI_ATTRIB_ACCUM_BLUE_SIZE 13
446 #define __DRI_ATTRIB_ACCUM_ALPHA_SIZE 14
447 #define __DRI_ATTRIB_SAMPLE_BUFFERS 15
448 #define __DRI_ATTRIB_SAMPLES 16
449 #define __DRI_ATTRIB_RENDER_TYPE 17
450 #define __DRI_ATTRIB_CONFIG_CAVEAT 18
451 #define __DRI_ATTRIB_CONFORMANT 19
452 #define __DRI_ATTRIB_DOUBLE_BUFFER 20
453 #define __DRI_ATTRIB_STEREO 21
454 #define __DRI_ATTRIB_AUX_BUFFERS 22
455 #define __DRI_ATTRIB_TRANSPARENT_TYPE 23
456 #define __DRI_ATTRIB_TRANSPARENT_INDEX_VALUE 24
457 #define __DRI_ATTRIB_TRANSPARENT_RED_VALUE 25
458 #define __DRI_ATTRIB_TRANSPARENT_GREEN_VALUE 26
459 #define __DRI_ATTRIB_TRANSPARENT_BLUE_VALUE 27
460 #define __DRI_ATTRIB_TRANSPARENT_ALPHA_VALUE 28
461 #define __DRI_ATTRIB_FLOAT_MODE 29
462 #define __DRI_ATTRIB_RED_MASK 30
463 #define __DRI_ATTRIB_GREEN_MASK 31
464 #define __DRI_ATTRIB_BLUE_MASK 32
465 #define __DRI_ATTRIB_ALPHA_MASK 33
466 #define __DRI_ATTRIB_MAX_PBUFFER_WIDTH 34
467 #define __DRI_ATTRIB_MAX_PBUFFER_HEIGHT 35
468 #define __DRI_ATTRIB_MAX_PBUFFER_PIXELS 36
469 #define __DRI_ATTRIB_OPTIMAL_PBUFFER_WIDTH 37
470 #define __DRI_ATTRIB_OPTIMAL_PBUFFER_HEIGHT 38
471 #define __DRI_ATTRIB_VISUAL_SELECT_GROUP 39
472 #define __DRI_ATTRIB_SWAP_METHOD 40
473 #define __DRI_ATTRIB_MAX_SWAP_INTERVAL 41
474 #define __DRI_ATTRIB_MIN_SWAP_INTERVAL 42
475 #define __DRI_ATTRIB_BIND_TO_TEXTURE_RGB 43
476 #define __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA 44
477 #define __DRI_ATTRIB_BIND_TO_MIPMAP_TEXTURE 45
478 #define __DRI_ATTRIB_BIND_TO_TEXTURE_TARGETS 46
479 #define __DRI_ATTRIB_YINVERTED 47
481 /* __DRI_ATTRIB_RENDER_TYPE */
482 #define __DRI_ATTRIB_RGBA_BIT 0x01
483 #define __DRI_ATTRIB_COLOR_INDEX_BIT 0x02
484 #define __DRI_ATTRIB_LUMINANCE_BIT 0x04
486 /* __DRI_ATTRIB_CONFIG_CAVEAT */
487 #define __DRI_ATTRIB_SLOW_BIT 0x01
488 #define __DRI_ATTRIB_NON_CONFORMANT_CONFIG 0x02
490 /* __DRI_ATTRIB_TRANSPARENT_TYPE */
491 #define __DRI_ATTRIB_TRANSPARENT_RGB 0x00
492 #define __DRI_ATTRIB_TRANSPARENT_INDEX 0x01
494 /* __DRI_ATTRIB_BIND_TO_TEXTURE_TARGETS */
495 #define __DRI_ATTRIB_TEXTURE_1D_BIT 0x01
496 #define __DRI_ATTRIB_TEXTURE_2D_BIT 0x02
497 #define __DRI_ATTRIB_TEXTURE_RECTANGLE_BIT 0x04
500 * This extension defines the core DRI functionality.
502 #define __DRI_CORE "DRI_Core"
503 #define __DRI_CORE_VERSION 1
505 struct __DRIcoreExtensionRec
{
508 __DRIscreen
*(*createNewScreen
)(int screen
, int fd
,
509 unsigned int sarea_handle
,
510 const __DRIextension
**extensions
,
511 const __DRIconfig
***driverConfigs
,
512 void *loaderPrivate
);
514 void (*destroyScreen
)(__DRIscreen
*screen
);
516 const __DRIextension
**(*getExtensions
)(__DRIscreen
*screen
);
518 int (*getConfigAttrib
)(const __DRIconfig
*config
,
520 unsigned int *value
);
522 int (*indexConfigAttrib
)(const __DRIconfig
*config
, int index
,
523 unsigned int *attrib
, unsigned int *value
);
525 __DRIdrawable
*(*createNewDrawable
)(__DRIscreen
*screen
,
526 const __DRIconfig
*config
,
527 unsigned int drawable_id
,
529 void *loaderPrivate
);
531 void (*destroyDrawable
)(__DRIdrawable
*drawable
);
533 void (*swapBuffers
)(__DRIdrawable
*drawable
);
535 __DRIcontext
*(*createNewContext
)(__DRIscreen
*screen
,
536 const __DRIconfig
*config
,
537 __DRIcontext
*shared
,
538 void *loaderPrivate
);
540 int (*copyContext
)(__DRIcontext
*dest
,
544 void (*destroyContext
)(__DRIcontext
*context
);
546 int (*bindContext
)(__DRIcontext
*ctx
,
547 __DRIdrawable
*pdraw
,
548 __DRIdrawable
*pread
);
550 int (*unbindContext
)(__DRIcontext
*ctx
);
554 * Stored version of some component (i.e., server-side DRI module, kernel-side
558 * There are several data structures that explicitly store a major version,
559 * minor version, and patch level. These structures should be modified to
560 * have a \c __DRIversionRec instead.
562 struct __DRIversionRec
{
563 int major
; /**< Major version number. */
564 int minor
; /**< Minor version number. */
565 int patch
; /**< Patch-level. */
569 * Framebuffer information record. Used by libGL to communicate information
570 * about the framebuffer to the driver's \c __driCreateNewScreen function.
572 * In XFree86, most of this information is derrived from data returned by
573 * calling \c XF86DRIGetDeviceInfo.
575 * \sa XF86DRIGetDeviceInfo __DRIdisplayRec::createNewScreen
576 * __driUtilCreateNewScreen CallCreateNewScreen
578 * \bug This structure could be better named.
580 struct __DRIframebufferRec
{
581 unsigned char *base
; /**< Framebuffer base address in the CPU's
582 * address space. This value is calculated by
583 * calling \c drmMap on the framebuffer handle
584 * returned by \c XF86DRIGetDeviceInfo (or a
587 int size
; /**< Framebuffer size, in bytes. */
588 int stride
; /**< Number of bytes from one line to the next. */
589 int width
; /**< Pixel width of the framebuffer. */
590 int height
; /**< Pixel height of the framebuffer. */
591 int dev_priv_size
; /**< Size of the driver's dev-priv structure. */
592 void *dev_priv
; /**< Pointer to the driver's dev-priv structure. */
597 * This extension provides alternative screen, drawable and context
598 * constructors for legacy DRI functionality. This is used in
599 * conjunction with the core extension.
601 #define __DRI_LEGACY "DRI_Legacy"
602 #define __DRI_LEGACY_VERSION 1
604 struct __DRIlegacyExtensionRec
{
607 __DRIscreen
*(*createNewScreen
)(int screen
,
608 const __DRIversion
*ddx_version
,
609 const __DRIversion
*dri_version
,
610 const __DRIversion
*drm_version
,
611 const __DRIframebuffer
*frame_buffer
,
612 void *pSAREA
, int fd
,
613 const __DRIextension
**extensions
,
614 const __DRIconfig
***driver_configs
,
615 void *loaderPrivate
);
617 __DRIdrawable
*(*createNewDrawable
)(__DRIscreen
*screen
,
618 const __DRIconfig
*config
,
619 drm_drawable_t hwDrawable
,
620 int renderType
, const int *attrs
,
621 void *loaderPrivate
);
623 __DRIcontext
*(*createNewContext
)(__DRIscreen
*screen
,
624 const __DRIconfig
*config
,
626 __DRIcontext
*shared
,
627 drm_context_t hwContext
,
628 void *loaderPrivate
);
632 * This extension provides alternative screen, drawable and context
633 * constructors for swrast DRI functionality. This is used in
634 * conjunction with the core extension.
636 #define __DRI_SWRAST "DRI_SWRast"
637 #define __DRI_SWRAST_VERSION 1
639 struct __DRIswrastExtensionRec
{
642 __DRIscreen
*(*createNewScreen
)(int screen
,
643 const __DRIextension
**extensions
,
644 const __DRIconfig
***driver_configs
,
645 void *loaderPrivate
);
647 __DRIdrawable
*(*createNewDrawable
)(__DRIscreen
*screen
,
648 const __DRIconfig
*config
,
649 void *loaderPrivate
);
653 * DRI2 Loader extension.
655 #define __DRI_BUFFER_FRONT_LEFT 0
656 #define __DRI_BUFFER_BACK_LEFT 1
657 #define __DRI_BUFFER_FRONT_RIGHT 2
658 #define __DRI_BUFFER_BACK_RIGHT 3
659 #define __DRI_BUFFER_DEPTH 4
660 #define __DRI_BUFFER_STENCIL 5
661 #define __DRI_BUFFER_ACCUM 6
662 #define __DRI_BUFFER_FAKE_FRONT_LEFT 7
663 #define __DRI_BUFFER_FAKE_FRONT_RIGHT 8
664 #define __DRI_BUFFER_DEPTH_STENCIL 9 /**< Only available with DRI2 1.1 */
666 struct __DRIbufferRec
{
667 unsigned int attachment
;
674 #define __DRI_DRI2_LOADER "DRI_DRI2Loader"
675 #define __DRI_DRI2_LOADER_VERSION 3
676 struct __DRIdri2LoaderExtensionRec
{
679 __DRIbuffer
*(*getBuffers
)(__DRIdrawable
*driDrawable
,
680 int *width
, int *height
,
681 unsigned int *attachments
, int count
,
682 int *out_count
, void *loaderPrivate
);
685 * Flush pending front-buffer rendering
687 * Any rendering that has been performed to the
688 * \c __DRI_BUFFER_FAKE_FRONT_LEFT will be flushed to the
689 * \c __DRI_BUFFER_FRONT_LEFT.
691 * \param driDrawable Drawable whose front-buffer is to be flushed
692 * \param loaderPrivate Loader's private data that was previously passed
693 * into __DRIdri2ExtensionRec::createNewDrawable
695 void (*flushFrontBuffer
)(__DRIdrawable
*driDrawable
, void *loaderPrivate
);
699 * Get list of buffers from the server
701 * Gets a list of buffer for the specified set of attachments. Unlike
702 * \c ::getBuffers, this function takes a list of attachments paired with
703 * opaque \c unsigned \c int value describing the format of the buffer.
704 * It is the responsibility of the caller to know what the service that
705 * allocates the buffers will expect to receive for the format.
707 * \param driDrawable Drawable whose buffers are being queried.
708 * \param width Output where the width of the buffers is stored.
709 * \param height Output where the height of the buffers is stored.
710 * \param attachments List of pairs of attachment ID and opaque format
711 * requested for the drawable.
712 * \param count Number of attachment / format pairs stored in
714 * \param loaderPrivate Loader's private data that was previously passed
715 * into __DRIdri2ExtensionRec::createNewDrawable.
717 __DRIbuffer
*(*getBuffersWithFormat
)(__DRIdrawable
*driDrawable
,
718 int *width
, int *height
,
719 unsigned int *attachments
, int count
,
720 int *out_count
, void *loaderPrivate
);
724 * This extension provides alternative screen, drawable and context
725 * constructors for DRI2.
727 #define __DRI_DRI2 "DRI_DRI2"
728 #define __DRI_DRI2_VERSION 1
730 struct __DRIdri2ExtensionRec
{
733 __DRIscreen
*(*createNewScreen
)(int screen
, int fd
,
734 const __DRIextension
**extensions
,
735 const __DRIconfig
***driver_configs
,
736 void *loaderPrivate
);
738 __DRIdrawable
*(*createNewDrawable
)(__DRIscreen
*screen
,
739 const __DRIconfig
*config
,
740 void *loaderPrivate
);
742 __DRIcontext
*(*createNewContext
)(__DRIscreen
*screen
,
743 const __DRIconfig
*config
,
744 __DRIcontext
*shared
,
745 void *loaderPrivate
);